/* roulang page: index */
:root {
            --primary: #2B6FE0;
            --primary-hover: #1E5BB8;
            --primary-soft: #EDF3FE;
            --primary-soft-hover: #DBE7FC;
            --accent-green: #0EA47A;
            --accent-green-soft: #E6F7F1;
            --accent-orange: #F97316;
            --accent-orange-soft: #FEF3E7;
            --text-strong: #1E293B;
            --text-mid: #3D4A5C;
            --text-weak: #64748B;
            --text-faint: #94A3B8;
            --bg-page: #F5F7FA;
            --bg-card: #FFFFFF;
            --bg-deep: #14233B;
            --bg-deep-secondary: #1A2D4A;
            --border-light: #E2E8F0;
            --border-soft: #EDF1F5;
            --radius-md: 10px;
            --radius-lg: 14px;
            --radius-xl: 18px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
            --shadow-lg: 0 8px 28px rgba(0,0,0,0.09);
            --shadow-hover: 0 12px 32px rgba(30,60,120,0.14);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.28s ease;
            --max-width: 1200px;
            --section-gap: 80px;
            --section-gap-mobile: 52px;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg-page);
            color: var(--text-strong);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--primary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        button:focus,
        a:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(43, 111, 224, 0.28);
            border-radius: 4px;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            margin-bottom: var(--section-gap);
        }

        .section-header {
            max-width: 720px;
            margin-bottom: 36px;
        }

        .section-header .section-tag {
            display: inline-block;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 6px;
            letter-spacing: 0.4px;
            margin-bottom: 12px;
        }

        .section-header h2 {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: -0.3px;
            color: var(--text-strong);
            margin-bottom: 12px;
        }

        .section-header p {
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.75;
        }

        .section-header.text-center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 22px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.2px;
            transition: all var(--transition-base);
            white-space: nowrap;
            border: 2px solid transparent;
            line-height: 1.2;
        }

        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(43, 111, 224, 0.3);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 3px 8px rgba(43, 111, 224, 0.25);
        }

        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-secondary:hover {
            background: var(--primary-soft);
            border-color: var(--primary);
            transform: translateY(-1px);
        }

        .btn-secondary:active {
            transform: translateY(0);
        }

        .btn-ghost {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: transparent;
        }

        .btn-ghost:hover {
            background: var(--primary-soft-hover);
            transform: translateY(-1px);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 8px;
        }

        .btn-lg {
            padding: 13px 30px;
            font-size: 16px;
        }

        .btn-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 2px;
            border-bottom: 2px solid transparent;
            border-radius: 0;
        }

        .btn-link:hover {
            border-bottom-color: var(--primary);
            color: var(--primary-hover);
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
            transition: all var(--transition-base);
        }

        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 6px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            line-height: 1.4;
        }

        .tag-primary {
            background: var(--primary-soft);
            color: var(--primary);
        }

        .tag-green {
            background: var(--accent-green-soft);
            color: var(--accent-green);
        }

        .tag-orange {
            background: var(--accent-orange-soft);
            color: var(--accent-orange);
        }

        .badge-date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-weak);
            white-space: nowrap;
        }

        .badge-date::before {
            content: "●";
            color: var(--primary);
            font-size: 12px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 100;
            padding: 0 16px;
            transition: all var(--transition-base);
        }

        .nav-panel {
            max-width: var(--max-width);
            margin: 0 auto;
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            padding: 12px 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: box-shadow var(--transition-base);
        }

        .nav-panel:hover {
            box-shadow: var(--shadow-lg);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-size: 19px;
            font-weight: 700;
            color: var(--text-strong);
            letter-spacing: 0.2px;
        }

        .nav-logo .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 9px;
            background: linear-gradient(135deg, #2B6FE0, #4A8DF0);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFF;
            font-size: 18px;
            font-weight: 700;
            box-shadow: 0 3px 8px rgba(43, 111, 224, 0.25);
        }

        .nav-cards {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-cards::-webkit-scrollbar {
            display: none;
        }

        .nav-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 13px;
            border-radius: 8px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-mid);
            background: var(--bg-page);
            border: 1px solid var(--border-soft);
            transition: all var(--transition-fast);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-card-link:hover {
            background: var(--primary-soft);
            border-color: var(--primary-soft-hover);
            color: var(--primary);
            transform: translateY(-1px);
        }

        .nav-card-link.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #FFFFFF;
            font-weight: 600;
            box-shadow: 0 4px 10px rgba(43, 111, 224, 0.28);
        }

        .nav-cta {
            flex-shrink: 0;
            margin-left: auto;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            background: var(--bg-page);
            border: 1px solid var(--border-soft);
            transition: all var(--transition-fast);
        }

        .hamburger span {
            width: 22px;
            height: 2px;
            background: var(--text-strong);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .hamburger:hover {
            background: var(--primary-soft);
        }

        /* ========== Hero ========== */
        .hero-section {
            margin-top: 28px;
        }

        .hero-card {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-light);
            overflow: hidden;
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 0;
            padding: 48px 52px;
            position: relative;
        }

        .hero-content {
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 20px;
            padding-right: 20px;
        }

        .hero-title {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.5px;
            color: var(--text-strong);
            margin-bottom: 4px;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, var(--primary), #4A8DF0);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-size: 16px;
            color: var(--text-weak);
            line-height: 1.75;
            max-width: 520px;
        }

        .hero-cta-group {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
            margin-top: 6px;
        }

        .hero-data-row {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        .hero-data-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-data-value {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.3px;
        }

        .hero-data-label {
            font-size: 13px;
            color: var(--text-faint);
        }

        .hero-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 360px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-soft);
        }

        .hero-visual .visual-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(20,35,59,0.85), rgba(43,111,224,0.28));
            border-radius: var(--radius-lg);
        }

        .hero-demo-panel {
            position: relative;
            z-index: 2;
            background: rgba(255,255,255,0.95);
            border-radius: 12px;
            padding: 20px 24px;
            box-shadow: 0 8px 28px rgba(0,0,0,0.18);
            width: 85%;
            max-width: 400px;
        }

        .demo-panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 14px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-strong);
        }

        .demo-panel-header .live-pulse {
            display: flex;
            align-items: center;
            gap: 6px;
            color: #EF4444;
            font-size: 13px;
            font-weight: 600;
        }

        .live-pulse::before {
            content: "";
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #EF4444;
            animation: pulse 1.4s infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(0.85); }
        }

        .demo-score-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-soft);
        }

        .demo-score-row:last-child {
            border-bottom: none;
        }

        .demo-team {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-strong);
            min-width: 60px;
        }

        .demo-score {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
        }

        .demo-status {
            font-size: 12px;
            color: var(--text-weak);
            background: var(--bg-page);
            padding: 2px 8px;
            border-radius: 4px;
        }

        /* ========== Metrics ========== */
        .metrics-section {
            margin-top: 32px;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 18px;
        }

        .metric-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
            text-align: left;
            transition: all var(--transition-base);
        }

        .metric-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: var(--primary-soft-hover);
        }

        .metric-value {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .metric-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 4px;
        }

        .metric-desc {
            font-size: 12px;
            color: var(--text-weak);
            line-height: 1.5;
        }

        /* ========== General Grid ========== */
        .two-col-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .three-col-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .four-col-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        /* ========== Scenario Demo ========== */
        .scenario-section {
            background: var(--bg-deep);
            border-radius: var(--radius-xl);
            padding: 48px 52px;
            color: #F1F5F9;
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 44px;
            align-items: center;
            box-shadow: var(--shadow-lg);
        }

        .scenario-text h2 {
            color: #FFFFFF;
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .scenario-text p {
            color: #B0C4DE;
            font-size: 15px;
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .scenario-steps {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .scenario-step {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background: rgba(255,255,255,0.06);
            border-radius: 10px;
            padding: 14px 18px;
            border: 1px solid rgba(255,255,255,0.08);
            transition: all var(--transition-fast);
        }

        .scenario-step:hover {
            background: rgba(255,255,255,0.1);
            border-color: rgba(255,255,255,0.16);
        }

        .step-number {
            background: var(--primary);
            color: #FFF;
            width: 30px;
            height: 30px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .step-content h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 4px;
        }

        .step-content p {
            font-size: 13px;
            color: #A0B5CE;
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ========== Service Matrix ========== */
        .services-matrix {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
        }

        .service-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
            padding: 26px 24px;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .service-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: var(--primary-soft-hover);
        }

        .service-card.wide {
            grid-column: span 1;
            grid-row: span 1;
            flex-direction: row;
            align-items: center;
            gap: 22px;
            padding: 30px 28px;
        }

        .service-card.wide .service-icon {
            font-size: 36px;
            flex-shrink: 0;
        }

        .service-card.wide .service-text {
            flex: 1;
        }

        .service-card.highlight {
            background: var(--primary-soft);
            border-color: var(--primary-soft-hover);
        }

        .service-card.with-progress {
            background: var(--bg-deep-secondary);
            border-color: rgba(255,255,255,0.1);
            color: #F1F5F9;
        }

        .service-card.with-progress h3 {
            color: #FFFFFF;
        }

        .service-card.with-progress p {
            color: #B0C4DE;
        }

        .service-icon {
            font-size: 28px;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 8px;
        }

        .service-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.35;
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.65;
        }

        .progress-bar-wrap {
            width: 100%;
            height: 6px;
            background: rgba(255,255,255,0.15);
            border-radius: 3px;
            overflow: hidden;
            margin-top: 8px;
        }

        .progress-bar-fill {
            height: 100%;
            background: var(--accent-green);
            border-radius: 3px;
            transition: width var(--transition-base);
        }

        .service-tag-group {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-top: 4px;
        }

        /* ========== Deep Content ========== */
        .deep-content-card {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            padding: 44px 48px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: start;
        }

        .deep-content-text h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .deep-content-text p {
            font-size: 15px;
            color: var(--text-mid);
            line-height: 1.8;
            margin-bottom: 14px;
        }

        .deep-content-text p:last-child {
            margin-bottom: 0;
        }

        .deep-content-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-soft);
        }

        .deep-content-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .deep-content-image:hover img {
            transform: scale(1.03);
        }

        /* ========== Trial Benefits ========== */
        .trial-benefits-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .benefit-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
            transition: all var(--transition-base);
        }

        .benefit-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .benefit-icon {
            font-size: 30px;
            margin-bottom: 12px;
        }

        .benefit-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 8px;
        }

        .benefit-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.65;
        }

        /* ========== Comparison ========== */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 20px;
        }

        .comparison-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
            transition: all var(--transition-base);
            position: relative;
        }

        .comparison-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .comparison-card.highlight {
            background: var(--primary-soft);
            border: 2px solid var(--primary);
            box-shadow: var(--shadow-md);
        }

        .comparison-card .recommend-badge {
            position: absolute;
            top: -12px;
            right: 18px;
            background: var(--primary);
            color: #FFF;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 5px;
        }

        .comparison-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-strong);
        }

        .comparison-card ul {
            list-style: none;
            padding: 0;
        }

        .comparison-card li {
            font-size: 14px;
            color: var(--text-mid);
            padding: 7px 0;
            border-bottom: 1px solid var(--border-soft);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .comparison-card li::before {
            content: "✓";
            color: var(--accent-green);
            font-weight: 700;
            flex-shrink: 0;
        }

        .comparison-card li.not-included::before {
            content: "✗";
            color: #EF4444;
        }

        /* ========== Qualification ========== */
        .qualification-card {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            padding: 40px 44px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .qualification-text h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 12px;
        }

        .qualification-text p {
            font-size: 15px;
            color: var(--text-mid);
            line-height: 1.75;
            margin-bottom: 10px;
        }

        .qualification-list {
            list-style: none;
            padding: 0;
        }

        .qualification-list li {
            font-size: 14px;
            color: var(--text-mid);
            padding: 8px 0;
            border-bottom: 1px solid var(--border-soft);
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .qualification-list li::before {
            content: "●";
            color: var(--primary);
            font-size: 10px;
            flex-shrink: 0;
            margin-top: 6px;
        }

        /* ========== Guarantee Bar ========== */
        .guarantee-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
            padding: 24px 28px;
        }

        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-mid);
        }

        .guarantee-item .guarantee-icon {
            font-size: 22px;
            flex-shrink: 0;
        }

        /* ========== News ========== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .news-item {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            gap: 20px;
            transition: all var(--transition-base);
        }

        .news-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--primary-soft-hover);
        }

        .news-date-badge {
            flex-shrink: 0;
            background: var(--primary-soft);
            color: var(--primary);
            padding: 8px 12px;
            border-radius: 8px;
            font-size: 13px;
            font-weight: 600;
            text-align: center;
            min-width: 56px;
            line-height: 1.3;
        }

        .news-content {
            flex: 1;
        }

        .news-content h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .news-content p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.6;
        }

        .news-action {
            flex-shrink: 0;
        }

        /* ========== Version Updates ========== */
        .version-list {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
            padding: 24px 28px;
        }

        .version-item {
            display: flex;
            gap: 16px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border-soft);
            align-items: flex-start;
        }

        .version-item:last-child {
            border-bottom: none;
        }

        .version-badge {
            background: var(--accent-green-soft);
            color: var(--accent-green);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 6px;
            flex-shrink: 0;
            min-width: 52px;
            text-align: center;
        }

        .version-item p {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.65;
        }

        /* ========== Brand Intro ========== */
        .brand-intro-card {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            padding: 44px 48px;
            text-align: center;
        }

        .brand-intro-card .brand-mark {
            font-size: 36px;
            margin-bottom: 14px;
        }

        .brand-intro-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 14px;
        }

        .brand-intro-card p {
            font-size: 15px;
            color: var(--text-mid);
            line-height: 1.8;
            max-width: 720px;
            margin: 0 auto;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
            transition: all var(--transition-base);
        }

        .faq-item.active {
            border-color: var(--primary-soft-hover);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-strong);
            text-align: left;
            transition: all var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-icon {
            width: 22px;
            height: 22px;
            border-radius: 6px;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            transition: all var(--transition-base);
            flex-shrink: 0;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #FFF;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: all var(--transition-base);
            padding: 0 22px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.75;
        }

        /* ========== Form ========== */
        .form-section-card {
            background: var(--bg-deep);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            padding: 48px 52px;
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            align-items: center;
        }

        .form-info h2 {
            color: #FFFFFF;
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .form-info p {
            color: #B0C4DE;
            font-size: 15px;
            line-height: 1.75;
        }

        .form-panel {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 30px;
            box-shadow: var(--shadow-lg);
        }

        .form-panel h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 16px;
        }

        .form-group {
            margin-bottom: 14px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-mid);
            margin-bottom: 4px;
        }

        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 10px 14px;
            border: 1.5px solid var(--border-light);
            border-radius: 8px;
            font-size: 14px;
            color: var(--text-strong);
            background: var(--bg-page);
            transition: all var(--transition-fast);
            resize: vertical;
        }

        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--primary);
            background: #FFF;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-deep);
            border-radius: var(--radius-xl) var(--radius-xl) 0 0;
            padding: 44px 0 28px;
            color: #A0B5CE;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 28px;
        }

        .footer-brand .footer-logo {
            font-size: 18px;
            font-weight: 700;
            color: #FFFFFF;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: #89A0BC;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 10px;
        }

        .footer-col a {
            display: block;
            font-size: 13px;
            color: #89A0BC;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: #FFFFFF;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: #89A0BC;
        }

        .footer-bottom-links {
            display: flex;
            gap: 16px;
            align-items: center;
            flex-wrap: wrap;
        }

        .footer-bottom-links a {
            color: #89A0BC;
            font-size: 13px;
        }

        .footer-bottom-links a:hover {
            color: #FFFFFF;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1200px) {
            .container {
                padding: 0 20px;
            }

            .hero-card {
                padding: 38px 40px;
                gap: 28px;
            }

            .metrics-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 14px;
            }

            .services-matrix {
                grid-template-columns: 1fr 1fr;
            }

            .deep-content-card {
                padding: 32px 36px;
                gap: 24px;
            }

            .form-section-card {
                padding: 36px 40px;
                gap: 28px;
            }
        }

        @media (max-width: 992px) {
            .hero-card {
                grid-template-columns: 1fr;
                padding: 32px 28px;
                gap: 24px;
            }

            .hero-visual {
                min-height: 260px;
            }

            .hero-title {
                font-size: 32px;
            }

            .scenario-section {
                grid-template-columns: 1fr;
                padding: 32px 28px;
                gap: 24px;
            }

            .deep-content-card {
                grid-template-columns: 1fr;
                padding: 28px 26px;
            }

            .deep-content-image {
                max-height: 260px;
                order: -1;
            }

            .qualification-card {
                grid-template-columns: 1fr;
                padding: 28px 26px;
                gap: 20px;
            }

            .form-section-card {
                grid-template-columns: 1fr;
                padding: 32px 28px;
                gap: 22px;
            }

            .comparison-grid {
                grid-template-columns: 1fr 1fr;
            }

            .trial-benefits-grid {
                grid-template-columns: 1fr 1fr;
            }

            .guarantee-bar {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                top: 10px;
                padding: 0 12px;
            }

            .nav-panel {
                flex-wrap: wrap;
                padding: 10px 14px;
                gap: 10px;
            }

            .nav-cards {
                order: 3;
                width: 100%;
                overflow-x: auto;
                padding-bottom: 4px;
            }

            .nav-cta {
                margin-left: 0;
            }

            .hamburger {
                display: flex;
            }

            .nav-cards.mobile-hidden {
                display: none;
            }

            .nav-cards.mobile-visible {
                display: flex;
            }

            .hero-card {
                padding: 26px 20px;
            }

            .hero-title {
                font-size: 26px;
            }

            .hero-subtitle {
                font-size: 14px;
            }

            .hero-cta-group {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            section {
                margin-bottom: var(--section-gap-mobile);
            }

            .section-header h2 {
                font-size: 22px;
            }

            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .services-matrix {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .service-card.wide {
                flex-direction: column;
                align-items: flex-start;
                gap: 14px;
                padding: 22px 20px;
            }

            .trial-benefits-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .comparison-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .guarantee-bar {
                grid-template-columns: 1fr;
                gap: 12px;
                padding: 18px 20px;
            }

            .news-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
                padding: 16px 18px;
            }

            .news-action {
                align-self: flex-start;
            }

            .deep-content-card {
                padding: 22px 18px;
            }

            .qualification-card {
                padding: 22px 18px;
            }

            .brand-intro-card {
                padding: 28px 22px;
            }

            .form-section-card {
                padding: 24px 20px;
            }

            .form-panel {
                padding: 20px 16px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }

        @media (max-width: 576px) {
            .container {
                padding: 0 14px;
            }

            .hero-title {
                font-size: 23px;
                letter-spacing: 0;
            }

            .hero-data-row {
                gap: 16px;
            }

            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }

            .metric-card {
                padding: 16px 14px;
            }

            .metric-value {
                font-size: 22px;
            }

            .section-header h2 {
                font-size: 20px;
            }

            .nav-card-link {
                font-size: 12px;
                padding: 6px 10px;
            }

            .btn-lg {
                padding: 11px 22px;
                font-size: 14px;
            }

            .form-section-card,
            .scenario-section,
            .deep-content-card,
            .qualification-card {
                padding: 20px 16px;
            }
        }

/* roulang page: category2 */
:root {
  --primary: #2B6FE0;
  --primary-hover: #1E5BB8;
  --primary-soft: #EDF3FE;
  --primary-soft-hover: #DBE7FC;
  --accent-green: #0EA47A;
  --accent-green-soft: #E6F7F1;
  --accent-orange: #F97316;
  --accent-orange-soft: #FEF3E7;
  --text-strong: #1E293B;
  --text-mid: #3D4A5C;
  --text-weak: #64748B;
  --text-faint: #94A3B8;
  --bg-page: #F5F7FA;
  --bg-card: #FFFFFF;
  --bg-deep: #14233B;
  --bg-deep-secondary: #1A2D4A;
  --border-light: #E2E8F0;
  --border-soft: #EDF1F5;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 28px rgba(0,0,0,0.09);
  --shadow-hover: 0 12px 32px rgba(30,60,120,0.14);
  --font-family: "PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --transition-fast: 0.2s ease;
  --transition-base: 0.28s ease;
  --max-width: 1200px;
  --section-gap: 80px;
  --section-gap-mobile: 52px;
}
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-family); background: var(--bg-page); color: var(--text-strong); line-height: 1.7; font-size: 16px; min-height: 100vh; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; margin: 0; }
a { color: inherit; text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--primary); }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea, select { font-family: inherit; font-size: inherit; line-height: inherit; }
button { cursor: pointer; border: none; background: none; }
button:focus, a:focus, input:focus, textarea:focus, select:focus { outline: none; box-shadow: 0 0 0 3px rgba(43,111,224,0.28); border-radius: 4px; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
section { margin-bottom: var(--section-gap); }
.section-header { max-width: 720px; margin-bottom: 36px; }
.section-header .section-tag { display: inline-block; background: var(--primary-soft); color: var(--primary); font-size: 13px; font-weight: 600; padding: 4px 12px; border-radius: 6px; letter-spacing: 0.4px; margin-bottom: 12px; }
.section-header h2 { font-size: 26px; font-weight: 700; line-height: 1.35; letter-spacing: -0.3px; color: var(--text-strong); margin: 0 0 12px; }
.section-header p { color: var(--text-weak); font-size: 15px; line-height: 1.75; margin: 0; }
.section-header.text-center { margin-left: auto; margin-right: auto; text-align: center; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 11px 22px; border-radius: var(--radius-md); font-size: 15px; font-weight: 600; letter-spacing: 0.2px; transition: all var(--transition-base); white-space: nowrap; border: 2px solid transparent; line-height: 1.2; }
.btn-primary { background: var(--primary); color: #FFFFFF; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); color: #FFFFFF; transform: translateY(-2px); box-shadow: 0 6px 18px rgba(43,111,224,0.3); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 3px 8px rgba(43,111,224,0.25); }
.btn-secondary { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-secondary:hover { background: var(--primary-soft); border-color: var(--primary); transform: translateY(-1px); }
.btn-ghost { background: var(--primary-soft); color: var(--primary); border-color: transparent; }
.btn-ghost:hover { background: var(--primary-soft-hover); transform: translateY(-1px); }
.btn-sm { padding: 8px 16px; font-size: 13px; border-radius: 8px; }
.btn-lg { padding: 13px 30px; font-size: 16px; }
.btn-link { color: var(--primary); font-weight: 600; font-size: 15px; display: inline-flex; align-items: center; gap: 6px; padding: 4px 2px; border-radius: 4px; }
.btn-link:hover { color: var(--primary-hover); text-decoration: underline; }
.site-header { position: sticky; top: 0; z-index: 200; padding: 14px 0 10px; background: var(--bg-page); }
.nav-panel { max-width: var(--max-width); margin: 0 auto; background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius-xl); box-shadow: var(--shadow-md); padding: 12px 16px; display: flex; align-items: center; gap: 14px; }
.nav-logo { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 700; color: var(--text-strong); white-space: nowrap; }
.nav-logo .logo-mark { width: 36px; height: 36px; background: var(--primary); color: #fff; border-radius: 9px; display: inline-flex; align-items: center; justify-content: center; font-size: 18px; font-weight: 700; }
.nav-cards { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; flex: 1; }
.nav-card-link { display: inline-flex; align-items: center; padding: 8px 14px; border-radius: 9px; font-size: 14px; font-weight: 500; color: var(--text-mid); background: var(--bg-page); border: 1px solid var(--border-soft); transition: all var(--transition-fast); white-space: nowrap; }
.nav-card-link:hover { background: var(--primary-soft); color: var(--primary); border-color: var(--primary-soft-hover); transform: translateY(-1px); }
.nav-card-link.active { background: var(--primary); color: #fff; border-color: var(--primary); box-shadow: 0 4px 10px rgba(43,111,224,0.25); }
.nav-cta { margin-left: auto; }
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; border-radius: 8px; border: 1px solid var(--border-light); background: var(--bg-card); }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--text-strong); border-radius: 2px; transition: all var(--transition-fast); }
.hero-category { padding: 64px 0 0; }
.hero-category .hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center; }
.hero-category .hero-content h1 { font-size: 42px; font-weight: 700; line-height: 1.25; letter-spacing: -0.5px; color: var(--text-strong); margin: 0 0 16px; }
.hero-category .hero-content h1 span { color: var(--primary); }
.hero-category .hero-content .hero-desc { font-size: 17px; color: var(--text-weak); line-height: 1.75; margin: 0 0 28px; }
.hero-category .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-category .hero-image-card { border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-lg); position: relative; aspect-ratio: 4/3; background: var(--bg-deep); }
.hero-category .hero-image-card img { width: 100%; height: 100%; object-fit: cover; }
.hero-category .hero-image-card .hero-img-overlay { position: absolute; left: 16px; bottom: 16px; right: 16px; background: rgba(255,255,255,0.92); border-radius: 10px; padding: 12px 16px; display: flex; align-items: center; gap: 12px; }
.hero-category .hero-img-overlay .badge-live { width: 8px; height: 8px; border-radius: 50%; background: #EF4444; animation: pulse-dot 1.5s infinite; }
@keyframes pulse-dot { 0%,100% { opacity: 1; transform: scale(1);} 50% { opacity: 0.5; transform: scale(1.4);} }
.hero-category .hero-img-overlay span { font-size: 13px; color: var(--text-mid); font-weight: 500; }
.stats-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 32px; }
.stat-chip { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius-lg); padding: 16px 18px; box-shadow: var(--shadow-sm); display: flex; align-items: center; gap: 12px; }
.stat-chip .stat-number { font-size: 22px; font-weight: 700; color: var(--primary); }
.stat-chip .stat-label { font-size: 13px; color: var(--text-weak); }
.data-section { background: var(--bg-card); border-radius: var(--radius-xl); padding: 36px; box-shadow: var(--shadow-md); margin-bottom: var(--section-gap); }
.data-section .data-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.data-block h3 { font-size: 20px; font-weight: 700; margin: 0 0 12px; color: var(--text-strong); }
.data-block p { color: var(--text-weak); font-size: 15px; line-height: 1.75; margin: 0 0 16px; }
.data-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.data-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--text-mid); }
.data-list li::before { content: ''; flex-shrink: 0; width: 6px; height: 6px; border-radius: 50%; background: var(--primary); margin-top: 8px; }
.data-block .badge-soft { display: inline-block; padding: 4px 10px; border-radius: 6px; font-size: 12px; font-weight: 600; margin-bottom: 10px; }
.badge-blue { background: var(--primary-soft); color: var(--primary); }
.badge-green { background: var(--accent-green-soft); color: var(--accent-green); }
.badge-orange { background: var(--accent-orange-soft); color: var(--accent-orange); }
.data-list-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 16px; }
.data-list-grid .data-item { background: var(--bg-page); border: 1px solid var(--border-soft); border-radius: 10px; padding: 14px; text-align: center; }
.data-item .data-value { font-size: 26px; font-weight: 700; color: var(--text-strong); }
.data-item .data-name { font-size: 12px; color: var(--text-weak); margin-top: 4px; }
.content-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.content-card { background: var(--bg-card); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--border-light); transition: all var(--transition-base); }
.content-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.content-card .card-img { aspect-ratio: 16/9; background: var(--bg-deep); overflow: hidden; }
.content-card .card-img img { width: 100%; height: 100%; object-fit: cover; }
.content-card .card-body { padding: 20px 22px; }
.content-card .card-date { display: inline-block; font-size: 12px; color: var(--text-faint); margin-bottom: 8px; }
.content-card h3 { font-size: 17px; font-weight: 700; line-height: 1.45; margin: 0 0 8px; color: var(--text-strong); }
.content-card p { font-size: 14px; color: var(--text-weak); line-height: 1.65; margin: 0 0 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.content-card .badge-tag { display: inline-block; padding: 3px 8px; border-radius: 5px; font-size: 11px; font-weight: 600; margin-right: 6px; margin-bottom: 4px; }
.compare-gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.compare-card { background: var(--bg-card); border-radius: var(--radius-lg); border: 1px solid var(--border-light); padding: 24px; box-shadow: var(--shadow-sm); transition: all var(--transition-base); }
.compare-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.compare-card.highlight { border-color: var(--primary); background: var(--primary-soft); }
.compare-card h4 { font-size: 18px; font-weight: 700; margin: 0 0 10px; color: var(--text-strong); }
.compare-card .compare-num { font-size: 32px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.compare-card.highlight .compare-num { color: var(--accent-orange); }
.compare-card ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.compare-card ul li { font-size: 14px; color: var(--text-mid); display: flex; align-items: flex-start; gap: 8px; }
.compare-card ul li::before { content: '✓'; color: var(--accent-green); font-weight: 700; flex-shrink: 0; }
.deep-dive { background: var(--bg-deep); color: #fff; border-radius: var(--radius-xl); padding: 48px; margin-bottom: var(--section-gap); }
.deep-dive h2 { color: #fff; font-size: 28px; font-weight: 700; margin: 0 0 20px; }
.deep-dive p { color: rgba(255,255,255,0.82); font-size: 15px; line-height: 1.85; margin: 0 0 16px; }
.deep-dive .deep-meta { display: flex; gap: 20px; margin-top: 24px; flex-wrap: wrap; }
.deep-dive .deep-meta span { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15); padding: 8px 16px; border-radius: 8px; font-size: 13px; color: rgba(255,255,255,0.9); }
.faq-list { display: flex; flex-direction: column; gap: 14px; }
.faq-item { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); transition: all var(--transition-base); }
.faq-item.active { border-color: var(--primary); box-shadow: var(--shadow-md); }
.faq-question { width: 100%; display: flex; align-items: center; justify-content: space-between; padding: 18px 22px; font-size: 16px; font-weight: 600; color: var(--text-strong); background: none; text-align: left; }
.faq-question .faq-icon { font-size: 20px; color: var(--primary); transition: transform var(--transition-base); }
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height var(--transition-base), padding var(--transition-base); padding: 0 22px; }
.faq-item.active .faq-answer { max-height: 240px; padding: 0 22px 20px; }
.faq-answer p { margin: 0; font-size: 14px; color: var(--text-weak); line-height: 1.75; }
.cta-panel { background: var(--bg-card); border-radius: var(--radius-xl); padding: 48px; box-shadow: var(--shadow-lg); border: 1px solid var(--border-light); display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center; margin-bottom: var(--section-gap); }
.cta-panel h2 { font-size: 28px; font-weight: 700; margin: 0 0 12px; color: var(--text-strong); }
.cta-panel p { font-size: 15px; color: var(--text-weak); line-height: 1.75; margin: 0 0 20px; }
.cta-panel .cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.cta-form-card { background: var(--bg-deep); border-radius: var(--radius-lg); padding: 28px; box-shadow: var(--shadow-lg); }
.cta-form-card h3 { color: #fff; font-size: 20px; font-weight: 700; margin: 0 0 16px; }
.form-group { margin-bottom: 14px; }
.form-group label { display: block; color: rgba(255,255,255,0.8); font-size: 13px; margin-bottom: 6px; }
.form-group input, .form-group textarea { width: 100%; padding: 11px 14px; border-radius: 8px; border: 1px solid rgba(255,255,255,0.2); background: rgba(255,255,255,0.08); color: #fff; font-size: 14px; box-sizing: border-box; transition: all var(--transition-fast); }
.form-group input::placeholder, .form-group textarea::placeholder { color: rgba(255,255,255,0.5); }
.form-group input:focus, .form-group textarea:focus { border-color: var(--primary); background: rgba(255,255,255,0.12); box-shadow: 0 0 0 3px rgba(43,111,224,0.3); }
.form-group textarea { resize: vertical; min-height: 80px; }
.site-footer { background: var(--bg-deep); color: rgba(255,255,255,0.8); padding: 56px 0 32px; border-radius: var(--radius-xl) var(--radius-xl) 0 0; }
.site-footer .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 36px; }
.site-footer .footer-logo { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.site-footer .footer-brand p { font-size: 14px; color: rgba(255,255,255,0.65); line-height: 1.7; margin: 0; }
.site-footer .footer-col h4 { color: #fff; font-size: 15px; font-weight: 600; margin: 0 0 14px; }
.site-footer .footer-col a { display: block; color: rgba(255,255,255,0.7); font-size: 14px; padding: 4px 0; transition: color var(--transition-fast); }
.site-footer .footer-col a:hover { color: #fff; }
.site-footer .footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); padding-top: 24px; display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; font-size: 13px; color: rgba(255,255,255,0.6); }
.site-footer .footer-bottom-links { display: flex; flex-wrap: wrap; gap: 18px; }
.site-footer .footer-bottom-links a, .site-footer .footer-bottom-links span { color: rgba(255,255,255,0.6); font-size: 13px; }
.site-footer .footer-bottom-links a:hover { color: #fff; }
@media (max-width: 1024px) {
  .hero-category .hero-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-category .hero-content h1 { font-size: 34px; }
  .content-cards { grid-template-columns: repeat(2, 1fr); }
  .cta-panel { grid-template-columns: 1fr; gap: 28px; }
  .data-section .data-grid { grid-template-columns: 1fr; }
  .data-list-grid { grid-template-columns: repeat(2, 1fr); }
  .site-footer .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav-panel { flex-wrap: wrap; position: relative; }
  .nav-cards { display: none; flex-direction: column; width: 100%; background: var(--bg-card); border-radius: var(--radius-lg); padding: 12px; gap: 6px; position: absolute; top: 100%; left: 0; right: 0; box-shadow: var(--shadow-lg); border: 1px solid var(--border-light); }
  .nav-cards.open { display: flex; }
  .nav-cta { display: none; }
  .hamburger { display: flex; margin-left: auto; }
  .hero-category { padding: 40px 0 0; }
  .hero-category .hero-content h1 { font-size: 28px; }
  .stats-strip { grid-template-columns: repeat(2, 1fr); }
  .content-cards { grid-template-columns: 1fr; }
  .compare-gallery { grid-template-columns: 1fr; }
  .data-list-grid { grid-template-columns: 1fr; }
  .deep-dive { padding: 32px 24px; }
  .cta-panel { padding: 32px 24px; }
  .site-footer .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  section { margin-bottom: var(--section-gap-mobile); }
  .section-header h2 { font-size: 22px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .nav-panel { padding: 10px 12px; }
  .hero-category .hero-actions { flex-direction: column; }
  .hero-category .hero-actions .btn { width: 100%; }
  .stats-strip { grid-template-columns: 1fr; }
  .stat-chip { padding: 12px 14px; }
  .stat-chip .stat-number { font-size: 18px; }
  .data-section { padding: 24px 16px; }
  .content-card .card-body { padding: 16px; }
  .cta-panel { padding: 24px 16px; }
  .cta-form-card { padding: 20px 16px; }
  .site-footer { padding: 40px 0 24px; }
  .site-footer .footer-bottom { flex-direction: column; align-items: flex-start; gap: 8px; }
}

/* roulang page: category3 */
:root {
            --primary: #2B6FE0;
            --primary-hover: #1E5BB8;
            --primary-soft: #EDF3FE;
            --primary-soft-hover: #DBE7FC;
            --accent-green: #0EA47A;
            --accent-green-soft: #E6F7F1;
            --accent-orange: #F97316;
            --accent-orange-soft: #FEF3E7;
            --text-strong: #1E293B;
            --text-mid: #3D4A5C;
            --text-weak: #64748B;
            --text-faint: #94A3B8;
            --bg-page: #F5F7FA;
            --bg-card: #FFFFFF;
            --bg-deep: #14233B;
            --bg-deep-secondary: #1A2D4A;
            --border-light: #E2E8F0;
            --border-soft: #EDF1F5;
            --radius-md: 10px;
            --radius-lg: 14px;
            --radius-xl: 18px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
            --shadow-lg: 0 8px 28px rgba(0,0,0,0.09);
            --shadow-hover: 0 12px 32px rgba(30,60,120,0.14);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.28s ease;
            --max-width: 1200px;
            --section-gap: 80px;
            --section-gap-mobile: 52px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg-page);
            color: var(--text-strong);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        button:focus,
        a:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(43, 111, 224, 0.28);
            border-radius: 4px;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            margin-bottom: var(--section-gap);
        }

        .section-header {
            max-width: 720px;
            margin-bottom: 36px;
        }
        .section-header .section-tag {
            display: inline-block;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 6px;
            letter-spacing: 0.4px;
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: -0.3px;
            color: var(--text-strong);
            margin-bottom: 12px;
        }
        .section-header p {
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.75;
        }
        .section-header.text-center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 22px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.2px;
            transition: all var(--transition-base);
            white-space: nowrap;
            border: 2px solid transparent;
            line-height: 1.2;
        }
        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(43, 111, 224, 0.3);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 3px 8px rgba(43, 111, 224, 0.25);
        }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary-soft);
            border-color: var(--primary);
            transform: translateY(-1px);
        }
        .btn-secondary:active {
            transform: translateY(0);
        }
        .btn-ghost {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: transparent;
        }
        .btn-ghost:hover {
            background: var(--primary-soft-hover);
            transform: translateY(-1px);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 8px;
        }
        .btn-lg {
            padding: 13px 30px;
            font-size: 16px;
        }
        .btn-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 2px;
            background: none;
            border: none;
        }
        .btn-link:hover {
            color: var(--primary-hover);
        }
        .btn-link:focus {
            box-shadow: 0 0 0 3px rgba(43, 111, 224, 0.28);
            border-radius: 4px;
        }

        /* ============ 导航 ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 14px 0;
            background: rgba(245, 247, 250, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .nav-panel {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 10px 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .nav-logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 18px;
            color: var(--text-strong);
            flex-shrink: 0;
            padding: 4px 8px 4px 4px;
            border-radius: 10px;
        }
        .nav-logo:hover {
            color: var(--primary);
        }
        .nav-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: var(--primary);
            color: #FFFFFF;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 8px;
            border-radius: 8px;
            background: var(--primary-soft);
            margin-left: auto;
            transition: background var(--transition-fast);
        }
        .hamburger:hover {
            background: var(--primary-soft-hover);
        }
        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: transform var(--transition-base), opacity var(--transition-base);
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }
        .nav-cards {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            flex-wrap: wrap;
            justify-content: center;
        }
        .nav-card-link {
            display: inline-flex;
            align-items: center;
            padding: 7px 14px;
            background: var(--bg-page);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-mid);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-card-link:hover {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: var(--primary-soft-hover);
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }
        .nav-card-link.active {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(43, 111, 224, 0.28);
        }
        .nav-cta {
            flex-shrink: 0;
        }

        /* ============ 面包屑 ============ */
        .breadcrumb-bar {
            padding: 18px 0 0;
            margin-bottom: 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-weak);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-weak);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-faint);
        }
        .breadcrumb .current {
            color: var(--text-strong);
            font-weight: 500;
        }

        /* ============ Hero ============ */
        .hero-schedule {
            padding-top: 28px;
            margin-bottom: var(--section-gap);
        }
        .hero-schedule .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 40px;
            align-items: center;
        }
        .hero-schedule .hero-content h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.5px;
            color: var(--text-strong);
            margin-bottom: 16px;
        }
        .hero-schedule .hero-content .hero-sub {
            font-size: 17px;
            color: var(--text-weak);
            line-height: 1.8;
            margin-bottom: 24px;
            max-width: 560px;
        }
        .hero-schedule .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }
        .hero-schedule .hero-signal {
            display: flex;
            align-items: center;
            gap: 10px;
            background: var(--accent-green-soft);
            border: 1px solid rgba(14, 164, 122, 0.2);
            padding: 10px 16px;
            border-radius: var(--radius-md);
            font-size: 14px;
            color: var(--accent-green);
            font-weight: 500;
            flex-wrap: wrap;
        }
        .hero-schedule .hero-signal .signal-dot {
            width: 8px;
            height: 8px;
            background: var(--accent-green);
            border-radius: 50%;
            animation: pulse-dot 1.6s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.5); }
        }
        .hero-schedule .hero-visual {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-light);
            background: var(--bg-card);
            aspect-ratio: 4/3;
        }
        .hero-schedule .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .hero-schedule .hero-visual .visual-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 24px 20px 18px;
            background: linear-gradient(0deg, rgba(20, 35, 59, 0.85) 0%, rgba(20, 35, 59, 0) 100%);
            color: #FFFFFF;
        }
        .hero-schedule .hero-visual .visual-overlay .overlay-title {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .hero-schedule .hero-visual .visual-overlay .overlay-text {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.8);
        }

        /* ============ 指标看板 ============ */
        .metric-board {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .metric-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            text-align: center;
        }
        .metric-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-soft-hover);
        }
        .metric-card .metric-value {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: -0.5px;
        }
        .metric-card .metric-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-mid);
            margin-bottom: 4px;
        }
        .metric-card .metric-desc {
            font-size: 12px;
            color: var(--text-faint);
            line-height: 1.5;
        }

        /* ============ 赛程内容列表 ============ */
        .schedule-list-section {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-xl);
            padding: 40px 36px;
            box-shadow: var(--shadow-sm);
        }
        .schedule-list-header {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }
        .schedule-list-header .section-header {
            margin-bottom: 0;
        }
        .schedule-filter-bar {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-chip {
            padding: 6px 14px;
            background: var(--bg-page);
            border: 1px solid var(--border-soft);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-mid);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .filter-chip:hover {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: var(--primary-soft-hover);
        }
        .filter-chip.active {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
        }
        .schedule-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .schedule-item {
            display: grid;
            grid-template-columns: 90px 1fr auto;
            gap: 18px;
            align-items: center;
            background: var(--bg-page);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 16px 20px;
            transition: all var(--transition-base);
        }
        .schedule-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-soft-hover);
            background: #FFFFFF;
        }
        .schedule-item .date-badge {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: var(--primary-soft);
            border-radius: var(--radius-md);
            padding: 10px 8px;
            min-height: 60px;
        }
        .schedule-item .date-badge .day {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
        }
        .schedule-item .date-badge .month {
            font-size: 12px;
            color: var(--text-weak);
            font-weight: 500;
        }
        .schedule-item .item-body {
            min-width: 0;
        }
        .schedule-item .item-body .item-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .schedule-item .item-body .item-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-weak);
        }
        .schedule-item .item-body .item-meta .meta-chip {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            padding: 2px 10px;
            border-radius: 14px;
            font-size: 12px;
            color: var(--text-mid);
        }
        .schedule-item .item-tag {
            flex-shrink: 0;
            padding: 4px 12px;
            background: var(--accent-green-soft);
            color: var(--accent-green);
            border-radius: 16px;
            font-size: 12px;
            font-weight: 600;
            white-space: nowrap;
        }
        .schedule-item .item-tag.upcoming {
            background: var(--accent-orange-soft);
            color: var(--accent-orange);
        }
        .schedule-item .btn-link {
            flex-shrink: 0;
            font-size: 14px;
        }

        /* ============ 特色：时间线 ============ */
        .timeline-section {
            background: var(--bg-deep);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            box-shadow: var(--shadow-lg);
            margin-bottom: var(--section-gap);
        }
        .timeline-section .section-header h2 {
            color: #FFFFFF;
        }
        .timeline-section .section-header p {
            color: rgba(255, 255, 255, 0.7);
        }
        .timeline-section .section-header .section-tag {
            background: rgba(43, 111, 224, 0.25);
            color: #8AB4FF;
        }
        .timeline-wrapper {
            position: relative;
            padding-left: 28px;
        }
        .timeline-wrapper::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: rgba(255, 255, 255, 0.15);
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            padding: 0 0 28px 20px;
        }
        .timeline-item:last-child {
            padding-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -26px;
            top: 4px;
            width: 14px;
            height: 14px;
            background: var(--primary);
            border: 3px solid rgba(255, 255, 255, 0.35);
            border-radius: 50%;
            box-shadow: 0 0 0 4px rgba(43, 111, 224, 0.25);
        }
        .timeline-item .time-label {
            font-size: 13px;
            color: #8AB4FF;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .timeline-item .time-title {
            font-size: 17px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 4px;
        }
        .timeline-item .time-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.6;
        }

        /* ============ 查询流程 ============ */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .process-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            text-align: center;
            position: relative;
        }
        .process-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .process-card .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #FFFFFF;
            border-radius: 10px;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .process-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 8px;
        }
        .process-card p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.6;
        }

        /* ============ 深度内容 ============ */
        .deep-content {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-xl);
            padding: 44px 40px;
            box-shadow: var(--shadow-sm);
        }
        .deep-content h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 20px;
            line-height: 1.35;
        }
        .deep-content .deep-article {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            margin-bottom: 28px;
        }
        .deep-content .deep-article:last-child {
            margin-bottom: 0;
        }
        .deep-content .deep-article .article-text h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 12px;
        }
        .deep-content .deep-article .article-text p {
            font-size: 15px;
            color: var(--text-mid);
            line-height: 1.85;
            margin-bottom: 12px;
        }
        .deep-content .deep-article .article-text p:last-child {
            margin-bottom: 0;
        }
        .deep-content .deep-article .article-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 16/10;
        }
        .deep-content .deep-article .article-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ============ FAQ ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }
        .faq-card:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-card.open {
            border-color: var(--primary-soft-hover);
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-strong);
            transition: all var(--transition-fast);
            user-select: none;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 18px;
            font-weight: 700;
            transition: all var(--transition-base);
        }
        .faq-card.open .faq-question .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #FFFFFF;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 24px;
        }
        .faq-card.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.75;
        }

        /* ============ CTA / 表单 ============ */
        .cta-section {
            background: var(--bg-deep);
            border-radius: var(--radius-xl);
            padding: 50px 44px;
            box-shadow: var(--shadow-lg);
            margin-bottom: var(--section-gap);
        }
        .cta-section .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .cta-section .cta-info h2 {
            font-size: 28px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 14px;
            line-height: 1.35;
        }
        .cta-section .cta-info p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.75;
            margin-bottom: 18px;
        }
        .cta-section .cta-info .cta-points {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .cta-section .cta-info .cta-points .point-tag {
            padding: 5px 14px;
            background: rgba(43, 111, 224, 0.25);
            color: #8AB4FF;
            border-radius: 16px;
            font-size: 13px;
            font-weight: 500;
        }
        .cta-section .form-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 30px 28px;
            box-shadow: var(--shadow-lg);
        }
        .cta-section .form-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 6px;
        }
        .cta-section .form-card .form-hint {
            font-size: 13px;
            color: var(--text-faint);
            margin-bottom: 20px;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-mid);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 11px 14px;
            background: var(--bg-page);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            font-size: 14px;
            color: var(--text-strong);
            transition: all var(--transition-fast);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--primary);
            background: #FFFFFF;
            box-shadow: 0 0 0 3px rgba(43, 111, 224, 0.18);
        }
        .form-group textarea {
            min-height: 90px;
            resize: vertical;
        }
        .form-submit {
            width: 100%;
            margin-top: 4px;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--bg-deep);
            color: rgba(255, 255, 255, 0.75);
            padding: 52px 0 28px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }
        .footer-brand .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: #8AB4FF;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom .footer-bottom-links a:hover {
            color: #8AB4FF;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1200px) {
            .hero-schedule .hero-content h1 {
                font-size: 32px;
            }
            .metric-board {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 992px) {
            .hero-schedule .hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .nav-cards {
                display: none;
            }
            .nav-cards.mobile-open {
                display: flex;
                flex-direction: column;
                width: 100%;
                align-items: stretch;
                gap: 6px;
                padding-top: 10px;
                border-top: 1px solid var(--border-soft);
            }
            .nav-card-link {
                justify-content: center;
                padding: 10px 14px;
                font-size: 14px;
            }
            .hamburger {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .nav-cta.mobile-open {
                display: inline-flex;
                width: 100%;
                margin-top: 4px;
            }
            .schedule-list-section {
                padding: 28px 20px;
            }
            .schedule-item {
                grid-template-columns: 70px 1fr;
                gap: 12px;
            }
            .schedule-item .btn-link {
                grid-column: 2;
                justify-self: start;
            }
            .timeline-section {
                padding: 36px 24px;
            }
            .deep-content {
                padding: 32px 24px;
            }
            .deep-content .deep-article {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .cta-section {
                padding: 36px 24px;
            }
            .cta-section .cta-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-gap: 52px;
            }
            .container {
                padding: 0 16px;
            }
            .hero-schedule .hero-content h1 {
                font-size: 26px;
            }
            .hero-schedule .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-schedule .hero-actions .btn {
                justify-content: center;
            }
            .metric-board {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .metric-card .metric-value {
                font-size: 24px;
            }
            .process-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .schedule-item {
                grid-template-columns: 1fr;
                gap: 10px;
                padding: 14px 16px;
            }
            .schedule-item .date-badge {
                flex-direction: row;
                gap: 6px;
                min-height: auto;
                padding: 8px 12px;
                justify-content: flex-start;
            }
            .schedule-item .btn-link {
                grid-column: auto;
                justify-self: start;
            }
            .timeline-section {
                padding: 28px 16px;
            }
            .timeline-wrapper {
                padding-left: 20px;
            }
            .timeline-item {
                padding-left: 14px;
            }
            .timeline-item::before {
                left: -18px;
                width: 12px;
                height: 12px;
            }
            .deep-content {
                padding: 24px 16px;
            }
            .cta-section {
                padding: 28px 16px;
            }
            .cta-section .form-card {
                padding: 20px 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .section-header h2 {
                font-size: 22px;
            }
        }
        @media (max-width: 520px) {
            .hero-schedule .hero-content h1 {
                font-size: 22px;
            }
            .hero-schedule .hero-sub {
                font-size: 15px;
            }
            .metric-board {
                grid-template-columns: 1fr;
            }
            .schedule-list-header {
                flex-direction: column;
            }
            .filter-chip {
                font-size: 12px;
                padding: 5px 10px;
            }
            .timeline-item .time-title {
                font-size: 15px;
            }
            .btn-lg {
                padding: 11px 22px;
                font-size: 14px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #2B6FE0;
            --primary-hover: #1E5BB8;
            --primary-soft: #EDF3FE;
            --primary-soft-hover: #DBE7FC;
            --accent-green: #0EA47A;
            --accent-green-soft: #E6F7F1;
            --accent-orange: #F97316;
            --accent-orange-soft: #FEF3E7;
            --text-strong: #1E293B;
            --text-mid: #3D4A5C;
            --text-weak: #64748B;
            --text-faint: #94A3B8;
            --bg-page: #F5F7FA;
            --bg-card: #FFFFFF;
            --bg-deep: #14233B;
            --bg-deep-secondary: #1A2D4A;
            --border-light: #E2E8F0;
            --border-soft: #EDF1F5;
            --radius-md: 10px;
            --radius-lg: 14px;
            --radius-xl: 18px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.09);
            --shadow-hover: 0 12px 32px rgba(30, 60, 120, 0.14);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.28s ease;
            --max-width: 1200px;
            --section-gap: 80px;
            --section-gap-mobile: 52px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg-page);
            color: var(--text-strong);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        button:focus,
        a:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(43, 111, 224, 0.28);
            border-radius: 4px;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            margin-bottom: var(--section-gap);
        }
        .section-header {
            max-width: 720px;
            margin-bottom: 36px;
        }
        .section-header .section-tag {
            display: inline-block;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 6px;
            letter-spacing: 0.4px;
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: -0.3px;
            color: var(--text-strong);
            margin-bottom: 12px;
        }
        .section-header p {
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.75;
        }
        .section-header.text-center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 22px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.2px;
            transition: all var(--transition-base);
            white-space: nowrap;
            border: 2px solid transparent;
            line-height: 1.2;
        }
        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(43, 111, 224, 0.3);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 3px 8px rgba(43, 111, 224, 0.25);
        }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary-soft);
            border-color: var(--primary);
            transform: translateY(-1px);
        }
        .btn-secondary:active {
            transform: translateY(0);
        }
        .btn-ghost {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: transparent;
        }
        .btn-ghost:hover {
            background: var(--primary-soft-hover);
            transform: translateY(-1px);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 8px;
        }
        .btn-lg {
            padding: 13px 30px;
            font-size: 16px;
        }
        .btn-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 2px;
            border-radius: 4px;
            transition: all var(--transition-fast);
        }
        .btn-link:hover {
            color: var(--primary-hover);
            gap: 10px;
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 100;
            padding: 12px 24px;
            margin-bottom: 32px;
        }
        .nav-panel {
            max-width: var(--max-width);
            margin: 0 auto;
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            padding: 10px 18px;
            display: flex;
            align-items: center;
            gap: 10px;
            border: 1px solid var(--border-light);
            flex-wrap: nowrap;
            position: relative;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            letter-spacing: -0.2px;
            color: var(--text-strong);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-logo:hover {
            color: var(--primary);
        }
        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--primary);
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-cards {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding: 2px 4px;
        }
        .nav-cards::-webkit-scrollbar {
            display: none;
        }
        .nav-card-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 7px 14px;
            border-radius: 8px;
            font-size: 13px;
            font-weight: 500;
            white-space: nowrap;
            background: var(--bg-page);
            border: 1px solid var(--border-soft);
            color: var(--text-mid);
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .nav-card-link:hover {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: var(--primary-soft-hover);
            transform: translateY(-1px);
        }
        .nav-card-link.active {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
            box-shadow: 0 3px 10px rgba(43, 111, 224, 0.25);
        }
        .nav-cta {
            flex-shrink: 0;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 8px 6px;
            border-radius: 6px;
            background: var(--bg-page);
            border: 1px solid var(--border-light);
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }
        .hamburger:hover {
            background: var(--primary-soft);
        }
        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-strong);
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        /* Hero */
        .api-hero {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 48px;
            align-items: center;
            background: var(--bg-card);
            border-radius: 20px;
            box-shadow: var(--shadow-md);
            padding: 48px 48px 48px 40px;
            border: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
            margin-bottom: 32px;
        }
        .api-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(43, 111, 224, 0.08), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .api-hero-content {
            position: relative;
            z-index: 1;
        }
        .api-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 13px;
            border-radius: 50px;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .api-hero-badge .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent-green);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.3); }
        }
        .api-hero h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.5px;
            color: var(--text-strong);
            margin-bottom: 16px;
        }
        .api-hero h1 .highlight {
            color: var(--primary);
        }
        .api-hero-desc {
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-weak);
            max-width: 440px;
            margin-bottom: 24px;
        }
        .api-hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .api-hero-kpi-row {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }
        .api-hero-kpi {
            display: flex;
            flex-direction: column;
        }
        .api-hero-kpi .kpi-value {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-strong);
            letter-spacing: -0.3px;
        }
        .api-hero-kpi .kpi-label {
            font-size: 12px;
            color: var(--text-faint);
            letter-spacing: 0.3px;
        }
        .api-hero-visual {
            position: relative;
            z-index: 1;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-light);
            aspect-ratio: 4 / 3;
            background: var(--bg-deep);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .api-hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .api-hero-visual .visual-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px;
            background: linear-gradient(transparent, rgba(20, 35, 59, 0.85));
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 12px;
        }
        .visual-overlay span {
            color: rgba(255, 255, 255, 0.9);
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.3px;
        }
        .visual-overlay .overlay-badge {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 12px;
            color: #FFFFFF;
            white-space: nowrap;
        }

        /* Metrics */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .metric-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 24px 22px;
            border: 1px solid var(--border-soft);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .metric-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-soft-hover);
        }
        .metric-card .metric-icon {
            width: 36px;
            height: 36px;
            border-radius: 9px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            margin-bottom: 6px;
        }
        .metric-card:nth-child(1) .metric-icon {
            background: var(--primary-soft);
            color: var(--primary);
        }
        .metric-card:nth-child(2) .metric-icon {
            background: var(--accent-green-soft);
            color: var(--accent-green);
        }
        .metric-card:nth-child(3) .metric-icon {
            background: var(--accent-orange-soft);
            color: var(--accent-orange);
        }
        .metric-card:nth-child(4) .metric-icon {
            background: #F1F5F9;
            color: var(--text-mid);
        }
        .metric-card .metric-value {
            font-size: 26px;
            font-weight: 700;
            letter-spacing: -0.4px;
            color: var(--text-strong);
            line-height: 1.2;
        }
        .metric-card .metric-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-mid);
        }
        .metric-card .metric-desc {
            font-size: 12px;
            color: var(--text-faint);
        }

        /* API Service Matrix */
        .api-service-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 20px;
        }
        .api-service-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 24px;
            border: 1px solid var(--border-soft);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .api-service-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-soft-hover);
        }
        .api-service-card.card-wide {
            grid-column: span 4;
        }
        .api-service-card.card-monitor {
            grid-column: span 3;
            background: var(--bg-deep);
            color: #FFFFFF;
            border-color: var(--bg-deep-secondary);
        }
        .api-service-card.card-monitor:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(20, 35, 59, 0.3);
            border-color: var(--bg-deep-secondary);
        }
        .api-service-card.card-accent {
            grid-column: span 3;
            background: var(--primary-soft);
            border-color: var(--primary-soft-hover);
        }
        .api-service-card.card-accent:hover {
            background: var(--primary-soft-hover);
        }
        .api-service-card .api-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 19px;
            flex-shrink: 0;
        }
        .api-service-card:not(.card-monitor) .api-icon {
            background: var(--primary-soft);
            color: var(--primary);
        }
        .api-service-card.card-monitor .api-icon {
            background: rgba(255, 255, 255, 0.12);
            color: #FFFFFF;
        }
        .api-service-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: inherit;
            line-height: 1.35;
        }
        .api-service-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-weak);
            flex: 1;
        }
        .api-service-card.card-monitor p {
            color: rgba(255, 255, 255, 0.75);
        }
        .api-service-card .api-badge-row {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            margin-top: auto;
        }
        .api-badge {
            display: inline-block;
            font-size: 11px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 50px;
            background: var(--bg-page);
            color: var(--text-mid);
            letter-spacing: 0.2px;
        }
        .api-service-card.card-monitor .api-badge {
            background: rgba(255, 255, 255, 0.12);
            color: rgba(255, 255, 255, 0.85);
        }
        .api-service-card.card-accent .api-badge {
            background: #FFFFFF;
            color: var(--primary);
        }

        .api-progress-row {
            margin-top: 12px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .api-progress-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
        }
        .api-progress-label {
            width: 70px;
            flex-shrink: 0;
            color: rgba(255, 255, 255, 0.8);
            font-weight: 500;
        }
        .api-progress-bar {
            flex: 1;
            height: 6px;
            border-radius: 3px;
            background: rgba(255, 255, 255, 0.15);
            overflow: hidden;
        }
        .api-progress-fill {
            height: 100%;
            border-radius: 3px;
            background: var(--accent-green);
            transition: width 1.2s ease;
        }
        .api-progress-value {
            width: 48px;
            flex-shrink: 0;
            text-align: right;
            color: #FFFFFF;
            font-weight: 600;
            font-size: 12px;
        }

        /* Compare Section */
        .compare-section {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            padding: 40px 36px;
            border: 1px solid var(--border-light);
        }
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-top: 24px;
        }
        .compare-card {
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 2px solid var(--border-light);
            transition: all var(--transition-base);
        }
        .compare-card:hover {
            transform: translateY(-2px);
        }
        .compare-card.compare-before {
            background: var(--bg-page);
            border-color: var(--border-light);
        }
        .compare-card.compare-after {
            background: var(--primary-soft);
            border-color: var(--primary);
            position: relative;
            box-shadow: var(--shadow-md);
        }
        .compare-card.compare-after::after {
            content: '推荐';
            position: absolute;
            top: -12px;
            right: 20px;
            background: var(--primary);
            color: #FFFFFF;
            font-size: 12px;
            font-weight: 700;
            padding: 3px 14px;
            border-radius: 50px;
            letter-spacing: 0.3px;
        }
        .compare-card h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: -0.2px;
        }
        .compare-card.compare-before h4 {
            color: var(--text-weak);
        }
        .compare-card.compare-after h4 {
            color: var(--primary-hover);
        }
        .compare-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .compare-list li {
            font-size: 14px;
            line-height: 1.6;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text-mid);
        }
        .compare-list li::before {
            content: '';
            flex-shrink: 0;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            margin-top: 8px;
        }
        .compare-before .compare-list li::before {
            background: var(--text-faint);
        }
        .compare-after .compare-list li::before {
            background: var(--accent-green);
        }

        /* Deep Content */
        .deep-area {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-sm);
            padding: 36px 36px;
            border: 1px solid var(--border-soft);
            margin-bottom: 28px;
        }
        .deep-area h3 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: -0.2px;
            margin-bottom: 14px;
            color: var(--text-strong);
        }
        .deep-area p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-mid);
            margin-bottom: 14px;
        }
        .deep-area p:last-child {
            margin-bottom: 0;
        }
        .deep-area .code-inline {
            font-family: 'SF Mono', 'JetBrains Mono', 'Courier New', monospace;
            font-size: 13px;
            background: var(--bg-page);
            padding: 2px 8px;
            border-radius: 5px;
            border: 1px solid var(--border-light);
            color: var(--primary);
            letter-spacing: 0.2px;
        }
        .endpoint-box {
            background: var(--bg-deep);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            margin: 14px 0;
            font-family: 'SF Mono', 'JetBrains Mono', 'Courier New', monospace;
            font-size: 13px;
            color: #E2E8F0;
            letter-spacing: 0.3px;
            overflow-x: auto;
            white-space: nowrap;
            border: none;
        }
        .endpoint-box .method {
            color: var(--accent-green);
            font-weight: 700;
            margin-right: 8px;
        }
        .endpoint-box .path {
            color: #FFFFFF;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }
        .faq-card:hover {
            border-color: var(--primary-soft-hover);
        }
        .faq-card.open {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 22px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-strong);
            text-align: left;
            line-height: 1.5;
            transition: all var(--transition-fast);
            background: none;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--bg-page);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            color: var(--text-weak);
            transition: all var(--transition-base);
        }
        .faq-card.open .faq-question .faq-icon {
            background: var(--primary);
            color: #FFFFFF;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
        }
        .faq-card.open .faq-answer {
            max-height: 400px;
            padding: 0 22px 18px;
        }
        .faq-answer p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-weak);
        }

        /* Form Section */
        .form-section {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-light);
            padding: 40px 36px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            position: relative;
            overflow: hidden;
        }
        .form-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 5px;
            height: 100%;
            background: var(--primary);
        }
        .form-info h2 {
            font-size: 24px;
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: -0.3px;
            margin-bottom: 14px;
        }
        .form-info p {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.75;
            margin-bottom: 16px;
        }
        .form-info .form-note-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .form-info .form-note-list li {
            font-size: 14px;
            color: var(--text-mid);
            display: flex;
            align-items: flex-start;
            gap: 10px;
            line-height: 1.6;
        }
        .form-info .form-note-list li::before {
            content: '✓';
            color: var(--accent-green);
            font-weight: 700;
            font-size: 15px;
            margin-top: 1px;
        }
        .form-fields {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 5px;
        }
        .form-group label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-mid);
            letter-spacing: 0.2px;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            border: 2px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 10px 14px;
            font-size: 15px;
            color: var(--text-strong);
            background: var(--bg-page);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            width: 100%;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(43, 111, 224, 0.15);
            outline: none;
        }
        .form-group textarea {
            resize: vertical;
            min-height: 90px;
        }
        .form-submit-btn {
            margin-top: 6px;
            width: 100%;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-deep);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 24px 28px;
            border-radius: var(--radius-xl) var(--radius-xl) 0 0;
            margin-top: 20px;
        }
        .footer-grid {
            max-width: var(--max-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 28px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 17px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            max-width: 280px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }
        .footer-col a {
            display: block;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: #FFFFFF;
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .footer-bottom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition-fast);
        }
        .footer-bottom-links a:hover {
            color: #FFFFFF;
        }

        /* Responsive */
        @media (max-width: 1200px) {
            .api-hero {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
                padding: 36px 32px;
            }
            .api-hero h1 {
                font-size: 32px;
            }
            .api-service-grid {
                grid-template-columns: repeat(4, 1fr);
            }
            .api-service-card.card-wide {
                grid-column: span 4;
            }
            .api-service-card.card-monitor,
            .api-service-card.card-accent {
                grid-column: span 2;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 992px) {
            .site-header {
                padding: 10px 16px;
                top: 10px;
            }
            .nav-panel {
                flex-wrap: wrap;
                padding: 12px 14px;
            }
            .nav-cards {
                order: 3;
                width: 100%;
                flex-basis: 100%;
                overflow-x: auto;
                padding: 8px 2px 2px;
                gap: 4px;
            }
            .nav-card-link {
                font-size: 12px;
                padding: 6px 11px;
            }
            .nav-cta {
                margin-left: auto;
            }
            .hamburger {
                display: flex;
            }
            .nav-cards {
                display: none;
            }
            .nav-cards.mobile-open {
                display: flex;
                flex-wrap: wrap;
                gap: 6px;
            }
            .api-hero {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 28px 24px;
                border-radius: var(--radius-lg);
            }
            .api-hero h1 {
                font-size: 28px;
            }
            .api-hero-desc {
                max-width: 100%;
                font-size: 15px;
            }
            .api-hero-visual {
                aspect-ratio: 16 / 9;
            }
            .api-service-grid {
                grid-template-columns: 1fr 1fr;
            }
            .api-service-card.card-wide {
                grid-column: span 2;
            }
            .api-service-card.card-monitor,
            .api-service-card.card-accent {
                grid-column: span 2;
            }
            .compare-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .form-section {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 28px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .section-header h2 {
                font-size: 22px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-gap: 52px;
            }
            .container {
                padding: 0 16px;
            }
            .site-header {
                padding: 8px 10px;
                top: 6px;
            }
            .nav-panel {
                padding: 10px 12px;
                border-radius: 14px;
                gap: 8px;
            }
            .nav-logo {
                font-size: 16px;
                gap: 8px;
            }
            .logo-mark {
                width: 28px;
                height: 28px;
                font-size: 14px;
                border-radius: 7px;
            }
            .nav-cta {
                font-size: 12px;
                padding: 6px 12px;
                display: none;
            }
            .api-hero h1 {
                font-size: 24px;
            }
            .api-hero-actions {
                gap: 10px;
            }
            .api-hero-kpi-row {
                gap: 20px;
            }
            .api-hero-kpi .kpi-value {
                font-size: 18px;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .metric-card {
                padding: 16px 14px;
            }
            .metric-card .metric-value {
                font-size: 20px;
            }
            .metric-card .metric-name {
                font-size: 12px;
            }
            .metric-card .metric-desc {
                font-size: 11px;
            }
            .api-service-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .api-service-card.card-wide,
            .api-service-card.card-monitor,
            .api-service-card.card-accent {
                grid-column: span 1;
            }
            .compare-section {
                padding: 24px 18px;
            }
            .compare-card {
                padding: 20px 16px;
            }
            .deep-area {
                padding: 24px 20px;
            }
            .deep-area h3 {
                font-size: 17px;
            }
            .faq-question {
                font-size: 14px;
                padding: 13px 16px;
            }
            .faq-answer p {
                font-size: 13px;
            }
            .form-section {
                padding: 24px 18px;
                border-radius: var(--radius-lg);
            }
            .form-info h2 {
                font-size: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-bottom-links {
                flex-wrap: wrap;
                gap: 10px;
            }
            section {
                margin-bottom: var(--section-gap);
            }
        }
        @media (max-width: 576px) {
            .api-hero {
                padding: 20px 16px;
                border-radius: var(--radius-md);
            }
            .api-hero h1 {
                font-size: 20px;
                letter-spacing: -0.3px;
            }
            .api-hero-desc {
                font-size: 14px;
            }
            .api-hero-actions {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .api-hero-actions .btn {
                width: 100%;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .metric-card {
                flex-direction: row;
                align-items: center;
                gap: 12px;
                padding: 14px 16px;
            }
            .metric-card .metric-icon {
                margin-bottom: 0;
            }
            .section-header h2 {
                font-size: 19px;
            }
            .section-header p {
                font-size: 14px;
            }
            .btn-lg {
                padding: 11px 22px;
                font-size: 14px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #2B6FE0;
            --primary-hover: #1E5BB8;
            --primary-soft: #EDF3FE;
            --primary-soft-hover: #DBE7FC;
            --accent-green: #0EA47A;
            --accent-green-soft: #E6F7F1;
            --accent-orange: #F97316;
            --accent-orange-soft: #FEF3E7;
            --accent-red: #E05140;
            --accent-red-soft: #FDEEEC;
            --text-strong: #1E293B;
            --text-mid: #3D4A5C;
            --text-weak: #64748B;
            --text-faint: #94A3B8;
            --bg-page: #F5F7FA;
            --bg-card: #FFFFFF;
            --bg-deep: #14233B;
            --bg-deep-secondary: #1A2D4A;
            --border-light: #E2E8F0;
            --border-soft: #EDF1F5;
            --radius-md: 10px;
            --radius-lg: 14px;
            --radius-xl: 18px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
            --shadow-lg: 0 8px 28px rgba(0,0,0,0.09);
            --shadow-hover: 0 12px 32px rgba(30,60,120,0.14);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.28s ease;
            --max-width: 1200px;
            --section-gap: 80px;
            --section-gap-mobile: 52px;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-family);
            background: var(--bg-page);
            color: var(--text-strong);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        button:focus,
        a:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(43, 111, 224, 0.28);
            border-radius: 4px;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            margin-bottom: var(--section-gap);
        }
        .section-header {
            max-width: 720px;
            margin-bottom: 36px;
        }
        .section-header .section-tag {
            display: inline-block;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 6px;
            letter-spacing: 0.4px;
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: -0.3px;
            color: var(--text-strong);
            margin-bottom: 12px;
        }
        .section-header p {
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.75;
        }
        .section-header.text-center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 22px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.2px;
            transition: all var(--transition-base);
            white-space: nowrap;
            border: 2px solid transparent;
            line-height: 1.2;
        }
        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(43, 111, 224, 0.3);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 3px 8px rgba(43, 111, 224, 0.25);
        }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary-soft);
            border-color: var(--primary);
            transform: translateY(-1px);
        }
        .btn-ghost {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: transparent;
        }
        .btn-ghost:hover {
            background: var(--primary-soft-hover);
            transform: translateY(-1px);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 8px;
        }
        .btn-lg {
            padding: 13px 30px;
            font-size: 16px;
        }
        .btn-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 2px;
            border: none;
            background: none;
        }
        .btn-link:hover {
            color: var(--primary-hover);
            text-decoration: underline;
        }

        /* Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 12px 0;
            background: transparent;
        }
        .nav-panel {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 8px 12px;
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: nowrap;
            position: relative;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 17px;
            color: var(--text-strong);
            white-space: nowrap;
            padding: 2px 4px;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 34px;
            height: 34px;
            border-radius: 9px;
            background: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #FFFFFF;
            font-size: 16px;
            flex-shrink: 0;
        }
        .nav-cards {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            overflow-x: auto;
            scrollbar-width: thin;
            padding: 2px 0;
            -webkit-overflow-scrolling: touch;
        }
        .nav-cards::-webkit-scrollbar {
            height: 4px;
        }
        .nav-cards::-webkit-scrollbar-thumb {
            background: var(--border-light);
            border-radius: 4px;
        }
        .nav-card-link {
            padding: 7px 14px;
            border-radius: 8px;
            font-size: 13.5px;
            font-weight: 500;
            color: var(--text-mid);
            white-space: nowrap;
            background: transparent;
            border: 1px solid transparent;
            transition: all var(--transition-fast);
        }
        .nav-card-link:hover {
            color: var(--primary);
            background: var(--primary-soft);
            border-color: var(--primary-soft-hover);
        }
        .nav-card-link.active {
            color: var(--primary);
            background: var(--primary-soft);
            border-color: var(--primary-soft-hover);
            font-weight: 600;
        }
        .nav-cta {
            flex-shrink: 0;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 6px 4px;
            flex-shrink: 0;
            background: none;
            border: none;
        }
        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-strong);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        /* Category Hero */
        .cat-hero {
            display: grid;
            grid-template-columns: 1.05fr 0.95fr;
            gap: 36px;
            align-items: center;
            margin-bottom: 48px;
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
        }
        .cat-hero-body {
            padding: 44px 40px;
        }
        .cat-hero-body .section-tag {
            display: inline-block;
            background: var(--accent-orange-soft);
            color: var(--accent-orange);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 6px;
            letter-spacing: 0.4px;
            margin-bottom: 14px;
        }
        .cat-hero-body h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.5px;
            color: var(--text-strong);
            margin-bottom: 16px;
        }
        .cat-hero-body h1 .highlight {
            color: var(--primary);
        }
        .cat-hero-body p {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-weak);
            margin-bottom: 28px;
        }
        .cat-hero-actions {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }
        .cat-hero-figure {
            min-height: 320px;
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .cat-hero-figure img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 320px;
        }
        .cat-hero-figure::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(43,111,224,0.08) 0%, rgba(20,35,59,0.28) 100%);
            pointer-events: none;
        }
        .hero-badge {
            position: absolute;
            bottom: 20px;
            left: 20px;
            background: rgba(255,255,255,0.94);
            padding: 10px 16px;
            border-radius: 8px;
            box-shadow: var(--shadow-md);
            z-index: 2;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .hero-badge strong {
            font-size: 14px;
            color: var(--text-strong);
        }
        .hero-badge span {
            font-size: 12px;
            color: var(--text-weak);
        }

        /* News list */
        .news-layout {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 28px;
        }
        .news-main-card {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }
        .news-main-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .news-main-card .news-img {
            height: 260px;
            overflow: hidden;
        }
        .news-main-card .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .news-main-card:hover .news-img img {
            transform: scale(1.04);
        }
        .news-main-body {
            padding: 24px 28px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-date-badge {
            display: inline-block;
            background: var(--accent-orange-soft);
            color: var(--accent-orange);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 5px;
            letter-spacing: 0.3px;
            margin-bottom: 12px;
            align-self: flex-start;
        }
        .news-main-body h3 {
            font-size: 21px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--text-strong);
            margin-bottom: 10px;
        }
        .news-main-body p {
            font-size: 14.5px;
            color: var(--text-weak);
            line-height: 1.75;
            margin-bottom: 18px;
            flex: 1;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12.5px;
            color: var(--text-faint);
        }
        .news-meta .tag {
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 12px;
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 500;
        }

        .news-side-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .news-side-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
            padding: 16px 18px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .news-side-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-light);
        }
        .news-side-card .news-thumb {
            width: 72px;
            height: 72px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
        }
        .news-side-card .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-side-info {
            flex: 1;
            min-width: 0;
        }
        .news-side-info .news-date-badge {
            margin-bottom: 6px;
            font-size: 11px;
            padding: 2px 8px;
        }
        .news-side-info h4 {
            font-size: 15px;
            font-weight: 600;
            line-height: 1.45;
            color: var(--text-strong);
            margin-bottom: 5px;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }
        .news-side-info p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.55;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        /* Feature module - Editorial picks */
        .editorial-section {
            background: var(--bg-deep);
            border-radius: var(--radius-xl);
            padding: 44px 40px;
            color: #FFFFFF;
            margin-bottom: var(--section-gap);
        }
        .editorial-section .section-tag {
            background: rgba(255,255,255,0.12);
            color: #FFFFFF;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 6px;
            letter-spacing: 0.4px;
            display: inline-block;
            margin-bottom: 14px;
        }
        .editorial-section h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: -0.3px;
            margin-bottom: 12px;
            color: #FFFFFF;
        }
        .editorial-section>p {
            font-size: 15px;
            color: rgba(255,255,255,0.72);
            line-height: 1.75;
            margin-bottom: 32px;
            max-width: 680px;
        }
        .editorial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .editorial-card {
            background: rgba(255,255,255,0.07);
            border: 1px solid rgba(255,255,255,0.12);
            border-radius: var(--radius-lg);
            padding: 22px;
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .editorial-card:hover {
            background: rgba(255,255,255,0.12);
            border-color: rgba(255,255,255,0.22);
            transform: translateY(-3px);
        }
        .editorial-card .ec-badge {
            display: inline-block;
            background: var(--accent-green);
            color: #FFFFFF;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 5px;
            letter-spacing: 0.3px;
            margin-bottom: 12px;
        }
        .editorial-card h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 10px;
            color: #FFFFFF;
        }
        .editorial-card p {
            font-size: 13.5px;
            color: rgba(255,255,255,0.7);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .editorial-card .ec-link {
            color: var(--primary-soft);
            font-weight: 600;
            font-size: 13.5px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* Hot topics */
        .topics-section {
            margin-bottom: var(--section-gap);
        }
        .topics-section .section-header h2 {
            font-size: 24px;
        }
        .topics-wrapper {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .topic-chip {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: 30px;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-mid);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .topic-chip:hover {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: var(--primary-soft-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        .topic-chip.hot {
            background: var(--accent-orange-soft);
            color: var(--accent-orange);
            border-color: transparent;
            font-weight: 600;
        }

        /* Deep content */
        .deep-content {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
            padding: 40px 44px;
            margin-bottom: var(--section-gap);
        }
        .deep-content .section-tag {
            display: inline-block;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 6px;
            letter-spacing: 0.4px;
            margin-bottom: 14px;
        }
        .deep-content h2 {
            font-size: 24px;
            font-weight: 700;
            line-height: 1.4;
            letter-spacing: -0.3px;
            color: var(--text-strong);
            margin-bottom: 18px;
        }
        .deep-content p {
            font-size: 15.5px;
            color: var(--text-mid);
            line-height: 1.85;
            margin-bottom: 16px;
        }
        .deep-content blockquote {
            border-left: 4px solid var(--primary);
            padding: 14px 20px;
            background: var(--primary-soft);
            border-radius: 0 8px 8px 0;
            margin: 20px 0;
            color: var(--text-mid);
            font-size: 15px;
            line-height: 1.8;
        }
        .deep-content blockquote cite {
            display: block;
            margin-top: 8px;
            font-size: 13px;
            color: var(--text-weak);
            font-style: normal;
        }

        /* CTA */
        .cta-section {
            background: var(--bg-deep);
            border-radius: var(--radius-xl);
            padding: 48px 44px;
            text-align: center;
            color: #FFFFFF;
        }
        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 14px;
            color: #FFFFFF;
        }
        .cta-section p {
            font-size: 15.5px;
            line-height: 1.8;
            color: rgba(255,255,255,0.72);
            max-width: 620px;
            margin: 0 auto 28px;
        }
        .cta-section .btn {
            min-width: 180px;
        }
        .cta-section .btn-secondary {
            color: #FFFFFF;
            border-color: rgba(255,255,255,0.5);
        }
        .cta-section .btn-secondary:hover {
            background: rgba(255,255,255,0.12);
            border-color: rgba(255,255,255,0.7);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-deep);
            color: #FFFFFF;
            padding: 48px 0 26px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255,255,255,0.6);
            line-height: 1.75;
            margin-top: 12px;
            max-width: 320px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 17px;
            color: #FFFFFF;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
            color: rgba(255,255,255,0.9);
        }
        .footer-col a {
            display: block;
            font-size: 13.5px;
            color: rgba(255,255,255,0.6);
            margin-bottom: 9px;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: #FFFFFF;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 12.5px;
            color: rgba(255,255,255,0.5);
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }
        .footer-bottom-links a {
            color: rgba(255,255,255,0.5);
        }
        .footer-bottom-links a:hover {
            color: #FFFFFF;
        }

        /* Responsive */
        @media (max-width: 992px) {
            .cat-hero {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .cat-hero-body {
                padding: 32px 28px;
            }
            .cat-hero-body h1 {
                font-size: 30px;
            }
            .cat-hero-figure {
                min-height: 240px;
            }
            .cat-hero-figure img {
                min-height: 240px;
            }
            .news-layout {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .news-main-card .news-img {
                height: 220px;
            }
            .editorial-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .deep-content {
                padding: 28px 24px;
            }
            .editorial-section {
                padding: 32px 24px;
            }
            .cta-section {
                padding: 36px 24px;
            }
        }
        @media (max-width: 768px) {
            .nav-panel {
                flex-wrap: wrap;
                gap: 6px;
                padding: 8px 10px;
            }
            .nav-cards {
                order: 3;
                width: 100%;
                flex-basis: 100%;
                gap: 4px;
                padding: 4px 0;
                overflow-x: auto;
            }
            .nav-cta {
                margin-left: auto;
            }
            .hamburger {
                display: flex;
            }
            .nav-cards.nav-open {
                display: flex;
            }
            .nav-cards {
                display: flex;
            }
            section {
                margin-bottom: var(--section-gap-mobile);
            }
            .cat-hero-body {
                padding: 24px 20px;
            }
            .cat-hero-body h1 {
                font-size: 26px;
            }
            .cat-hero-body p {
                font-size: 14.5px;
            }
            .news-main-body {
                padding: 18px 20px 22px;
            }
            .news-main-card .news-img {
                height: 180px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .editorial-section {
                padding: 26px 18px;
            }
            .editorial-section h2 {
                font-size: 22px;
            }
            .cta-section h2 {
                font-size: 22px;
            }
            .deep-content {
                padding: 22px 18px;
            }
            .deep-content h2 {
                font-size: 20px;
            }
            .cat-hero-actions {
                gap: 12px;
            }
        }
        @media (max-width: 576px) {
            .container {
                padding: 0 16px;
            }
            .cat-hero-body h1 {
                font-size: 22px;
            }
            .news-side-card {
                flex-direction: column;
                gap: 10px;
            }
            .news-side-card .news-thumb {
                width: 100%;
                height: 140px;
            }
            .btn-lg {
                padding: 11px 22px;
                font-size: 15px;
            }
            .editorial-section h2 {
                font-size: 20px;
            }
            .cta-section h2 {
                font-size: 20px;
            }
            .topic-chip {
                font-size: 12.5px;
                padding: 6px 14px;
            }
            .hamburger {
                display: flex;
            }
            .nav-cta {
                padding: 6px 12px;
                font-size: 12px;
            }
            .nav-logo {
                font-size: 15px;
            }
            .logo-mark {
                width: 28px;
                height: 28px;
                font-size: 13px;
            }
        }
        @media (min-width: 769px) {
            .hamburger {
                display: none;
            }
            .nav-cards {
                display: flex !important;
            }
        }
        @media (max-width: 768px) {
            .nav-cards {
                display: none;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                max-height: 320px;
                overflow-y: auto;
                background: var(--bg-card);
                border-radius: 10px;
                padding: 8px;
                border: 1px solid var(--border-light);
            }
            .nav-cards.nav-open {
                display: flex;
            }
            .nav-card-link {
                padding: 10px 14px;
                border-radius: 8px;
                font-size: 14px;
            }
        }

/* roulang page: category1 */
:root {
 --primary: #2B6FE0;
 --primary-hover: #1E5BB8;
 --primary-soft: #EDF3FE;
 --primary-soft-hover: #DBE7FC;
 --accent-green: #0EA47A;
 --accent-green-soft: #E6F7F1;
 --accent-orange: #F97316;
 --accent-orange-soft: #FEF3E7;
 --text-strong: #1E293B;
 --text-mid: #3D4A5C;
 --text-weak: #64748B;
 --text-faint: #94A3B8;
 --bg-page: #F5F7FA;
 --bg-card: #FFFFFF;
 --bg-deep: #14233B;
 --bg-deep-secondary: #1A2D4A;
 --border-light: #E2E8F0;
 --border-soft: #EDF1F5;
 --radius-md: 10px;
 --radius-lg: 14px;
 --radius-xl: 18px;
 --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
 --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
 --shadow-lg: 0 8px 28px rgba(0,0,0,0.09);
 --shadow-hover: 0 12px 32px rgba(30,60,120,0.14);
 --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
 --transition-fast: 0.2s ease;
 --transition-base: 0.28s ease;
 --max-width: 1200px;
 --section-gap: 80px;
 --section-gap-mobile: 52px;
}
html {
 scroll-behavior: smooth;
 -webkit-text-size-adjust: 100%;
}
body {
 font-family: var(--font-family);
 background: var(--bg-page);
 color: var(--text-strong);
 line-height: 1.7;
 font-size: 16px;
 min-height: 100vh;
 -webkit-font-smoothing: antialiased;
 -moz-osx-font-smoothing: grayscale;
}
a {
 color: inherit;
 text-decoration: none;
 transition: color var(--transition-fast);
}
a:hover {
 color: var(--primary);
}
img {
 max-width: 100%;
 height: auto;
 display: block;
}
button, input, textarea, select {
 font-family: inherit;
 font-size: inherit;
 line-height: inherit;
}
button {
 cursor: pointer;
 border: none;
 background: none;
}
button:focus, a:focus, input:focus, textarea:focus, select:focus {
 outline: none;
 box-shadow: 0 0 0 3px rgba(43,111,224,0.28);
 border-radius: 4px;
}
.container {
 max-width: var(--max-width);
 margin: 0 auto;
 padding: 0 24px;
}
section {
 margin-bottom: var(--section-gap);
}
.section-header {
 max-width: 720px;
 margin-bottom: 36px;
}
.section-header .section-tag {
 display: inline-block;
 background: var(--primary-soft);
 color: var(--primary);
 font-size: 13px;
 font-weight: 600;
 padding: 4px 12px;
 border-radius: 6px;
 letter-spacing: 0.4px;
 margin-bottom: 12px;
}
.section-header h2 {
 font-size: 26px;
 font-weight: 700;
 line-height: 1.35;
 letter-spacing: -0.3px;
 color: var(--text-strong);
 margin-bottom: 12px;
}
.section-header p {
 color: var(--text-weak);
 font-size: 15px;
 line-height: 1.75;
}
.section-header.text-center {
 margin-left: auto;
 margin-right: auto;
 text-align: center;
}
.btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 gap: 8px;
 padding: 11px 22px;
 border-radius: var(--radius-md);
 font-size: 15px;
 font-weight: 600;
 letter-spacing: 0.2px;
 transition: all var(--transition-base);
 white-space: nowrap;
 border: 2px solid transparent;
 line-height: 1.2;
}
.btn-primary {
 background: var(--primary);
 color: #FFFFFF;
 border-color: var(--primary);
}
.btn-primary:hover {
 background: var(--primary-hover);
 border-color: var(--primary-hover);
 color: #FFFFFF;
 transform: translateY(-2px);
 box-shadow: 0 6px 18px rgba(43,111,224,0.3);
}
.btn-primary:active {
 transform: translateY(0);
 box-shadow: 0 3px 8px rgba(43,111,224,0.25);
}
.btn-secondary {
 background: transparent;
 color: var(--primary);
 border-color: var(--primary);
}
.btn-secondary:hover {
 background: var(--primary-soft);
 border-color: var(--primary);
 transform: translateY(-1px);
}
.btn-secondary:active {
 transform: translateY(0);
}
.btn-ghost {
 background: var(--primary-soft);
 color: var(--primary);
 border-color: transparent;
}
.btn-ghost:hover {
 background: var(--primary-soft-hover);
 transform: translateY(-1px);
}
.btn-sm {
 padding: 8px 16px;
 font-size: 13px;
 border-radius: 8px;
}
.btn-lg {
 padding: 13px 30px;
 font-size: 16px;
}
.btn-link {
 color: var(--primary);
 font-weight: 600;
 font-size: 15px;
 display: inline-flex;
 align-items: center;
 gap: 6px;
 padding: 4px 2px;
 border-bottom: 1px solid transparent;
}
.btn-link:hover {
 color: var(--primary-hover);
 border-bottom-color: var(--primary-hover);
}
.card {
 background: var(--bg-card);
 border-radius: var(--radius-lg);
 box-shadow: var(--shadow-sm);
 border: 1px solid var(--border-soft);
 transition: all var(--transition-base);
}
.card:hover {
 transform: translateY(-3px);
 box-shadow: var(--shadow-hover);
}
.badge {
 display: inline-flex;
 align-items: center;
 gap: 4px;
 font-size: 12px;
 font-weight: 600;
 padding: 3px 10px;
 border-radius: 6px;
 letter-spacing: 0.3px;
 white-space: nowrap;
}
.badge-blue {
 background: var(--primary-soft);
 color: var(--primary);
}
.badge-green {
 background: var(--accent-green-soft);
 color: var(--accent-green);
}
.badge-orange {
 background: var(--accent-orange-soft);
 color: var(--accent-orange);
}
.site-header {
 padding: 18px 0 0;
 position: sticky;
 top: 0;
 z-index: 100;
}
.nav-panel {
 max-width: var(--max-width);
 margin: 0 auto;
 background: #FFFFFF;
 border-radius: var(--radius-xl);
 box-shadow: var(--shadow-lg);
 border: 1px solid var(--border-soft);
 display: flex;
 align-items: center;
 gap: 10px;
 padding: 12px 18px;
 position: relative;
}
.nav-logo {
 display: flex;
 align-items: center;
 gap: 10px;
 font-weight: 700;
 font-size: 18px;
 color: var(--text-strong);
 white-space: nowrap;
 margin-right: 8px;
}
.nav-logo:hover {
 color: var(--primary);
}
.logo-mark {
 width: 32px;
 height: 32px;
 border-radius: 8px;
 background: var(--primary);
 display: inline-flex;
 align-items: center;
 justify-content: center;
 color: #FFF;
 font-size: 16px;
 flex-shrink: 0;
}
.nav-cards {
 display: flex;
 align-items: center;
 gap: 6px;
 flex-wrap: wrap;
 flex: 1;
}
.nav-card-link {
 display: inline-flex;
 align-items: center;
 padding: 7px 14px;
 border-radius: 8px;
 font-size: 13px;
 font-weight: 500;
 color: var(--text-mid);
 background: #F8FAFC;
 border: 1px solid var(--border-light);
 transition: all var(--transition-fast);
 white-space: nowrap;
}
.nav-card-link:hover {
 background: var(--primary-soft);
 color: var(--primary);
 border-color: #C7D9FA;
 transform: translateY(-1px);
}
.nav-card-link.active {
 background: var(--primary);
 color: #FFF;
 border-color: var(--primary);
 font-weight: 600;
}
.nav-cta {
 margin-left: auto;
}
.hamburger {
 display: none;
 flex-direction: column;
 gap: 5px;
 padding: 8px;
 border-radius: 8px;
 background: var(--primary-soft);
}
.hamburger span {
 width: 22px;
 height: 2px;
 background: var(--primary);
 border-radius: 2px;
 transition: all var(--transition-fast);
}
.page-hero {
 background: var(--bg-deep);
 border-radius: var(--radius-xl);
 overflow: hidden;
 position: relative;
 margin-bottom: 40px;
}
.page-hero-bg {
 position: absolute;
 inset: 0;
 background-image: url('/assets/images/backpic/back-1.webp');
 background-size: cover;
 background-position: center;
 opacity: 0.22;
}
.page-hero-content {
 position: relative;
 z-index: 1;
 padding: 56px 48px 64px;
 max-width: 720px;
}
.page-hero .hero-tag {
 display: inline-flex;
 align-items: center;
 gap: 8px;
 background: rgba(43,111,224,0.25);
 color: #D6E4FF;
 font-size: 13px;
 font-weight: 600;
 padding: 5px 14px;
 border-radius: 8px;
 margin-bottom: 18px;
 border: 1px solid rgba(43,111,224,0.4);
}
.page-hero h1 {
 font-size: 40px;
 font-weight: 700;
 line-height: 1.3;
 color: #FFFFFF;
 margin-bottom: 16px;
 letter-spacing: -0.5px;
}
.page-hero p {
 color: #B8C9E8;
 font-size: 16px;
 line-height: 1.75;
 margin-bottom: 26px;
 max-width: 600px;
}
.page-hero .hero-actions {
 display: flex;
 align-items: center;
 gap: 14px;
 flex-wrap: wrap;
}
.page-hero .btn-white {
 background: #FFFFFF;
 color: var(--primary);
 border-color: #FFFFFF;
 font-weight: 600;
}
.page-hero .btn-white:hover {
 background: var(--primary-soft);
 border-color: var(--primary-soft);
 color: var(--primary-hover);
 transform: translateY(-2px);
 box-shadow: 0 6px 18px rgba(255,255,255,0.2);
}
.page-hero .btn-outline-light {
 background: transparent;
 color: #E2EBFF;
 border-color: rgba(255,255,255,0.4);
}
.page-hero .btn-outline-light:hover {
 background: rgba(255,255,255,0.12);
 border-color: #FFFFFF;
 color: #FFFFFF;
 transform: translateY(-1px);
}
.hero-quick-stats {
 display: flex;
 gap: 20px;
 margin-top: 30px;
 padding-top: 22px;
 border-top: 1px solid rgba(255,255,255,0.15);
 flex-wrap: wrap;
}
.hero-quick-stat {
 display: flex;
 flex-direction: column;
}
.hero-quick-stat .stat-value {
 font-size: 22px;
 font-weight: 700;
 color: #FFFFFF;
}
.hero-quick-stat .stat-label {
 font-size: 12px;
 color: #9AB0D8;
}
.score-board-section {
 margin-top: -20px;
}
.score-board-grid {
 display: grid;
 grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
 gap: 16px;
}
.score-card {
 background: var(--bg-card);
 border-radius: var(--radius-lg);
 box-shadow: var(--shadow-sm);
 border: 1px solid var(--border-soft);
 padding: 18px 20px;
 transition: all var(--transition-base);
 position: relative;
}
.score-card:hover {
 transform: translateY(-2px);
 box-shadow: var(--shadow-hover);
}
.score-card.live {
 border-left: 3px solid var(--accent-green);
}
.score-card .score-top {
 display: flex;
 justify-content: space-between;
 align-items: center;
 margin-bottom: 12px;
 font-size: 12px;
 color: var(--text-weak);
}
.score-card .score-league {
 font-weight: 600;
 color: var(--text-mid);
}
.score-card .score-live-tag {
 display: inline-flex;
 align-items: center;
 gap: 4px;
 color: var(--accent-green);
 font-weight: 600;
}
.score-card .score-live-tag::before {
 content: '';
 width: 6px;
 height: 6px;
 border-radius: 50%;
 background: var(--accent-green);
 animation: pulse-dot 1.2s infinite;
}
@keyframes pulse-dot {
 0%,100% { opacity: 1; transform: scale(1); }
 50% { opacity: 0.5; transform: scale(0.85); }
}
.score-card .score-match {
 display: flex;
 justify-content: space-between;
 align-items: center;
 gap: 10px;
}
.score-card .score-team {
 display: flex;
 align-items: center;
 gap: 8px;
 font-weight: 600;
 font-size: 15px;
 color: var(--text-strong);
 flex: 1;
}
.score-card .score-team .team-icon {
 width: 24px;
 height: 24px;
 border-radius: 50%;
 background: var(--primary-soft);
 display: inline-flex;
 align-items: center;
 justify-content: center;
 font-size: 11px;
 color: var(--primary);
 flex-shrink: 0;
}
.score-card .score-number {
 font-size: 26px;
 font-weight: 700;
 color: var(--text-strong);
 letter-spacing: 1px;
}
.score-card .score-divider {
 color: var(--text-faint);
 font-size: 18px;
 font-weight: 300;
}
.score-card .score-time {
 text-align: center;
 font-size: 12px;
 color: var(--text-weak);
 margin-top: 8px;
 padding-top: 8px;
 border-top: 1px solid var(--border-soft);
}
.sports-coverage {
 background: var(--bg-card);
 border-radius: var(--radius-xl);
 border: 1px solid var(--border-soft);
 box-shadow: var(--shadow-sm);
 padding: 40px 36px;
}
.sports-coverage-grid {
 display: grid;
 grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
 gap: 20px;
 margin-top: 28px;
}
.coverage-item {
 text-align: center;
 padding: 20px 16px;
 border-radius: var(--radius-lg);
 background: #F8FAFC;
 border: 1px solid var(--border-light);
 transition: all var(--transition-base);
}
.coverage-item:hover {
 background: var(--primary-soft);
 border-color: #C7D9FA;
 transform: translateY(-3px);
}
.coverage-item .coverage-icon {
 width: 48px;
 height: 48px;
 border-radius: 12px;
 background: var(--primary-soft);
 color: var(--primary);
 display: inline-flex;
 align-items: center;
 justify-content: center;
 font-size: 22px;
 margin-bottom: 10px;
}
.coverage-item .coverage-name {
 font-weight: 600;
 font-size: 15px;
 color: var(--text-strong);
}
.coverage-item .coverage-count {
 font-size: 13px;
 color: var(--text-weak);
 margin-top: 4px;
}
.latency-compare {
 display: grid;
 grid-template-columns: 1fr 1fr;
 gap: 24px;
}
.latency-card {
 background: var(--bg-card);
 border-radius: var(--radius-lg);
 border: 1px solid var(--border-soft);
 box-shadow: var(--shadow-sm);
 padding: 28px 24px;
 transition: all var(--transition-base);
}
.latency-card:hover {
 transform: translateY(-3px);
 box-shadow: var(--shadow-hover);
}
.latency-card.highlight {
 border: 2px solid var(--primary);
 background: var(--primary-soft);
}
.latency-card .latency-header {
 display: flex;
 align-items: center;
 gap: 10px;
 margin-bottom: 18px;
}
.latency-card .latency-header .latency-icon {
 width: 36px;
 height: 36px;
 border-radius: 10px;
 display: inline-flex;
 align-items: center;
 justify-content: center;
 font-size: 18px;
}
.latency-card.highlight .latency-header .latency-icon {
 background: var(--primary);
 color: #FFF;
}
.latency-card:not(.highlight) .latency-header .latency-icon {
 background: #E2E8F0;
 color: var(--text-weak);
}
.latency-card .latency-header h3 {
 font-size: 18px;
 font-weight: 700;
 color: var(--text-strong);
}
.latency-card ul {
 list-style: none;
 padding: 0;
 margin: 0;
}
.latency-card ul li {
 display: flex;
 align-items: center;
 gap: 8px;
 padding: 8px 0;
 border-bottom: 1px solid var(--border-soft);
 font-size: 14px;
 color: var(--text-mid);
}
.latency-card ul li:last-child {
 border-bottom: none;
}
.latency-card ul li::before {
 content: '✓';
 color: var(--accent-green);
 font-weight: 700;
 font-size: 14px;
 flex-shrink: 0;
}
.match-list-section {
 background: var(--bg-card);
 border-radius: var(--radius-xl);
 border: 1px solid var(--border-soft);
 box-shadow: var(--shadow-sm);
 padding: 40px 36px;
}
.match-entry {
 display: flex;
 align-items: center;
 gap: 18px;
 padding: 18px 16px;
 border-radius: var(--radius-lg);
 border-bottom: 1px solid var(--border-soft);
 transition: all var(--transition-base);
}
.match-entry:last-child {
 border-bottom: none;
}
.match-entry:hover {
 background: #F8FAFC;
 transform: translateX(4px);
}
.match-entry .match-date {
 min-width: 90px;
 font-size: 13px;
 font-weight: 600;
 color: var(--text-weak);
}
.match-entry .match-info {
 flex: 1;
}
.match-entry .match-title {
 font-weight: 600;
 font-size: 15px;
 color: var(--text-strong);
 margin-bottom: 2px;
}
.match-entry .match-summary {
 font-size: 13px;
 color: var(--text-weak);
}
.match-entry .match-badge {
 flex-shrink: 0;
}
.deep-content-section {
 background: var(--bg-deep);
 border-radius: var(--radius-xl);
 overflow: hidden;
 display: grid;
 grid-template-columns: 1fr 1fr;
 gap: 0;
}
.deep-content-text {
 padding: 48px 44px;
}
.deep-content-text h2 {
 font-size: 24px;
 font-weight: 700;
 color: #FFFFFF;
 margin-bottom: 18px;
 line-height: 1.4;
}
.deep-content-text p {
 color: #B8C9E8;
 font-size: 15px;
 line-height: 1.8;
 margin-bottom: 16px;
}
.deep-content-text p:last-child {
 margin-bottom: 0;
}
.deep-content-image {
 position: relative;
 min-height: 320px;
}
.deep-content-image img {
 position: absolute;
 inset: 0;
 width: 100%;
 height: 100%;
 object-fit: cover;
}
.push-feature-section {
 display: grid;
 grid-template-columns: 1fr 1fr;
 gap: 32px;
 align-items: center;
}
.push-feature-text h2 {
 font-size: 24px;
 font-weight: 700;
 color: var(--text-strong);
 margin-bottom: 16px;
 line-height: 1.4;
}
.push-feature-text p {
 color: var(--text-weak);
 font-size: 15px;
 line-height: 1.8;
 margin-bottom: 14px;
}
.push-feature-list {
 list-style: none;
 padding: 0;
 margin: 0;
}
.push-feature-list li {
 display: flex;
 align-items: flex-start;
 gap: 10px;
 padding: 8px 0;
 color: var(--text-mid);
 font-size: 14px;
}
.push-feature-list li::before {
 content: '●';
 color: var(--primary);
 font-size: 10px;
 margin-top: 6px;
 flex-shrink: 0;
}
.push-feature-image img {
 border-radius: var(--radius-xl);
 box-shadow: var(--shadow-lg);
 width: 100%;
 object-fit: cover;
}
.faq-section .faq-item {
 background: var(--bg-card);
 border-radius: var(--radius-lg);
 border: 1px solid var(--border-soft);
 box-shadow: var(--shadow-sm);
 margin-bottom: 14px;
 overflow: hidden;
 transition: all var(--transition-base);
}
.faq-section .faq-item.active {
 border-color: var(--primary);
 box-shadow: var(--shadow-hover);
}
.faq-section .faq-question {
 display: flex;
 justify-content: space-between;
 align-items: center;
 padding: 18px 22px;
 cursor: pointer;
 font-weight: 600;
 font-size: 15px;
 color: var(--text-strong);
 transition: color var(--transition-fast);
 gap: 12px;
}
.faq-section .faq-question:hover {
 color: var(--primary);
}
.faq-section .faq-question .faq-toggle-icon {
 width: 24px;
 height: 24px;
 border-radius: 6px;
 background: var(--primary-soft);
 color: var(--primary);
 display: inline-flex;
 align-items: center;
 justify-content: center;
 font-size: 16px;
 font-weight: 700;
 flex-shrink: 0;
 transition: transform var(--transition-base);
}
.faq-section .faq-item.active .faq-toggle-icon {
 transform: rotate(45deg);
 background: var(--primary);
 color: #FFF;
}
.faq-section .faq-answer {
 max-height: 0;
 overflow: hidden;
 transition: max-height 0.35s ease, padding 0.3s ease;
 padding: 0 22px;
}
.faq-section .faq-item.active .faq-answer {
 max-height: 300px;
 padding: 0 22px 20px;
}
.faq-section .faq-answer p {
 color: var(--text-weak);
 font-size: 14px;
 line-height: 1.75;
 margin: 0;
}
.cta-section .cta-card {
 background: var(--bg-deep);
 border-radius: var(--radius-xl);
 padding: 48px 40px;
 display: grid;
 grid-template-columns: 1fr auto;
 gap: 30px;
 align-items: center;
 position: relative;
 overflow: hidden;
}
.cta-section .cta-card::before {
 content: '';
 position: absolute;
 top: -60px;
 right: -40px;
 width: 200px;
 height: 200px;
 border-radius: 50%;
 background: rgba(43,111,224,0.25);
}
.cta-section .cta-card::after {
 content: '';
 position: absolute;
 bottom: -50px;
 left: 30%;
 width: 150px;
 height: 150px;
 border-radius: 50%;
 background: rgba(43,111,224,0.18);
}
.cta-section .cta-content {
 position: relative;
 z-index: 1;
}
.cta-section .cta-content h2 {
 font-size: 26px;
 font-weight: 700;
 color: #FFFFFF;
 margin-bottom: 12px;
 line-height: 1.4;
}
.cta-section .cta-content p {
 color: #B8C9E8;
 font-size: 15px;
 line-height: 1.75;
 margin-bottom: 0;
}
.cta-section .cta-actions {
 position: relative;
 z-index: 1;
 display: flex;
 gap: 12px;
 flex-wrap: wrap;
}
.cta-section .btn-white {
 background: #FFFFFF;
 color: var(--primary);
 border-color: #FFFFFF;
}
.cta-section .btn-white:hover {
 background: var(--primary-soft);
 border-color: var(--primary-soft);
 transform: translateY(-2px);
 box-shadow: 0 6px 18px rgba(255,255,255,0.2);
}
.cta-section .btn-outline-light {
 background: transparent;
 color: #E2EBFF;
 border-color: rgba(255,255,255,0.4);
}
.cta-section .btn-outline-light:hover {
 background: rgba(255,255,255,0.12); border-color: #FFFFFF; color: #FFFFFF; transform: translateY(-1px); }
@media (max-width: 992px) {
 .nav-panel { flex-wrap: wrap; }
 .hamburger { display: flex; }
 .nav-cards { display: none; position: absolute; top: 100%; left: 0; right: 0; background: #FFFFFF; border-radius: 0 0 var(--radius-xl) var(--radius-xl); box-shadow: var(--shadow-lg); padding: 16px; flex-direction: column; align-items: stretch; gap: 6px; }
 .nav-cards.open { display: flex; }
 .nav-cta { margin-left: 0; width: 100%; justify-content: center; }
 .page-hero-content { padding: 40px 28px 48px; }
 .page-hero h1 { font-size: 32px; }
 .latency-compare { grid-template-columns: 1fr; }
 .deep-content-section { grid-template-columns: 1fr; }
 .deep-content-image { min-height: 240px; order: -1; }
 .push-feature-section { grid-template-columns: 1fr; }
 .push-feature-image { order: -1; }
 .cta-section .cta-card { grid-template-columns: 1fr; padding: 36px 28px; }
}
@media (max-width: 768px) {
 section { margin-bottom: var(--section-gap-mobile); }
 .section-header h2 { font-size: 22px; }
 .page-hero h1 { font-size: 26px; }
 .page-hero p { font-size: 14px; }
 .score-board-grid { grid-template-columns: 1fr; }
 .match-entry { flex-wrap: wrap; gap: 8px; }
 .match-entry .match-date { min-width: 80px; }
 .match-entry .match-info { flex: 1 1 100%; }
 .sports-coverage { padding: 28px 16px; }
 .sports-coverage-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
 .match-list-section { padding: 28px 16px; }
 .deep-content-text { padding: 32px 24px; }
 .deep-content-text h2 { font-size: 20px; }
 .faq-section .faq-question { font-size: 14px; padding: 16px 18px; }
 .cta-section .cta-content h2 { font-size: 22px; }
}
@media (max-width: 576px) {
 .container { padding: 0 16px; }
 .nav-panel { padding: 10px 12px; }
 .nav-logo { font-size: 16px; }
 .logo-mark { width: 28px; height: 28px; font-size: 14px; }
 .btn-lg { padding: 12px 24px; font-size: 15px; }
 .page-hero-content { padding: 32px 20px 40px; }
 .page-hero h1 { font-size: 22px; }
 .page-hero .hero-actions { flex-direction: column; align-items: stretch; }
 .page-hero .btn { width: 100%; }
 .hero-quick-stats { gap: 14px; }
 .hero-quick-stat .stat-value { font-size: 18px; }
 .coverage-item .coverage-icon { width: 40px; height: 40px; font-size: 18px; }
 .coverage-item .coverage-name { font-size: 14px; }
 .match-entry .match-title { font-size: 14px; }
 .match-entry .match-summary { font-size: 12px; }
 .cta-section .cta-actions { flex-direction: column; }
 .cta-section .cta-actions .btn { width: 100%; }
}

/* roulang page: category6 */
:root {
            --primary: #2B6FE0;
            --primary-hover: #1E5BB8;
            --primary-soft: #EDF3FE;
            --primary-soft-hover: #DBE7FC;
            --accent-green: #0EA47A;
            --accent-green-soft: #E6F7F1;
            --accent-orange: #F97316;
            --accent-orange-soft: #FEF3E7;
            --text-strong: #1E293B;
            --text-mid: #3D4A5C;
            --text-weak: #64748B;
            --text-faint: #94A3B8;
            --bg-page: #F5F7FA;
            --bg-card: #FFFFFF;
            --bg-deep: #14233B;
            --bg-deep-secondary: #1A2D4A;
            --border-light: #E2E8F0;
            --border-soft: #EDF1F5;
            --radius-md: 10px;
            --radius-lg: 14px;
            --radius-xl: 18px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
            --shadow-lg: 0 8px 28px rgba(0,0,0,0.09);
            --shadow-hover: 0 12px 32px rgba(30,60,120,0.14);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.28s ease;
            --max-width: 1200px;
            --section-gap: 80px;
            --section-gap-mobile: 52px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg-page);
            color: var(--text-strong);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover { color: var(--primary); }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button { cursor: pointer; border: none; background: none; }
        button:focus, a:focus, input:focus, textarea:focus, select:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(43,111,224,0.28);
            border-radius: 4px;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        section { margin-bottom: var(--section-gap); }

        .section-header {
            max-width: 720px;
            margin-bottom: 36px;
        }
        .section-header .section-tag {
            display: inline-block;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 6px;
            letter-spacing: 0.4px;
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: -0.3px;
            color: var(--text-strong);
            margin-bottom: 12px;
            margin-top: 0;
        }
        .section-header p {
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.75;
            margin: 0;
        }
        .section-header.text-center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 22px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.2px;
            transition: all var(--transition-base);
            white-space: nowrap;
            border: 2px solid transparent;
            line-height: 1.2;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(43,111,224,0.3);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 3px 8px rgba(43,111,224,0.25);
        }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary-soft);
            border-color: var(--primary);
            transform: translateY(-1px);
        }
        .btn-secondary:active { transform: translateY(0); }
        .btn-ghost {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: transparent;
        }
        .btn-ghost:hover {
            background: var(--primary-soft-hover);
            transform: translateY(-1px);
        }
        .btn-sm { padding: 8px 16px; font-size: 13px; border-radius: 8px; }
        .btn-lg { padding: 13px 30px; font-size: 16px; }
        .btn-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 2px;
        }
        .btn-link:hover { color: var(--primary-hover); text-decoration: underline; }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 14px 0;
            background: rgba(245,247,250,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-soft);
        }
        .nav-panel {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            gap: 14px;
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            min-height: 64px;
            padding: 10px 18px;
            position: relative;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-strong);
            margin-right: 6px;
            flex-shrink: 0;
        }
        .nav-logo:hover { color: var(--primary); }
        .logo-mark {
            width: 34px;
            height: 34px;
            border-radius: 9px;
            background: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #FFF;
            font-size: 17px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            margin-left: auto;
            padding: 8px;
            border-radius: 8px;
            background: var(--primary-soft);
            border: none;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .nav-cards {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            flex: 1;
            margin-left: 8px;
        }
        .nav-card-link {
            display: inline-flex;
            align-items: center;
            padding: 7px 14px;
            border-radius: 9px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-mid);
            background: var(--bg-page);
            border: 1px solid transparent;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-card-link:hover {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: var(--primary-soft-hover);
            transform: translateY(-1px);
        }
        .nav-card-link.active {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
            font-weight: 600;
        }
        .nav-cta {
            flex-shrink: 0;
            margin-left: auto;
        }

        /* Hero */
        .category-hero {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-light);
            padding: 56px 48px;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
            position: relative;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(43,111,224,0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-hero-content { position: relative; z-index: 1; }
        .category-hero-content .hero-tag {
            display: inline-block;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 7px;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .category-hero-content h1 {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.5px;
            color: var(--text-strong);
            margin: 0 0 16px 0;
        }
        .category-hero-content h1 .highlight {
            color: var(--primary);
        }
        .category-hero-content .hero-desc {
            font-size: 17px;
            color: var(--text-weak);
            line-height: 1.75;
            margin-bottom: 28px;
            max-width: 560px;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .category-hero-visual {
            position: relative;
            z-index: 1;
            border-radius: var(--radius-lg);
            overflow: hidden;
            aspect-ratio: 4/3;
            box-shadow: var(--shadow-lg);
            border: 4px solid #fff;
        }
        .category-hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .hero-visual-badge {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(20,35,59,0.85);
            color: #fff;
            padding: 10px 16px;
            border-radius: 10px;
            font-size: 13px;
            font-weight: 600;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        /* Report List */
        .report-list-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .report-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
            padding: 28px 32px;
            display: flex;
            flex-direction: column;
            gap: 14px;
            transition: all var(--transition-base);
            position: relative;
        }
        .report-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-light);
        }
        .report-card-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }
        .report-date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-faint);
            font-weight: 500;
            background: var(--bg-page);
            padding: 4px 10px;
            border-radius: 6px;
        }
        .report-tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 6px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .report-tag.tag-blue { background: var(--primary-soft); color: var(--primary); }
        .report-tag.tag-green { background: var(--accent-green-soft); color: var(--accent-green); }
        .report-tag.tag-orange { background: var(--accent-orange-soft); color: var(--accent-orange); }
        .report-card h3 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-strong);
            margin: 0;
        }
        .report-card p {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.7;
            margin: 0;
            flex-grow: 1;
        }
        .report-card .report-meta-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-top: auto;
            padding-top: 12px;
            border-top: 1px solid var(--border-soft);
        }
        .report-stat-mini {
            font-size: 13px;
            color: var(--text-faint);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .report-stat-mini span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* Feature Module */
        .report-feature-deep {
            background: var(--bg-deep);
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .report-feature-deep::before {
            content: '';
            position: absolute;
            top: -30%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(43,111,224,0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .report-feature-deep .feature-deep-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            position: relative;
            z-index: 1;
            align-items: start;
        }
        .feature-deep-text h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            margin: 0 0 16px 0;
            color: #fff;
        }
        .feature-deep-text p {
            font-size: 15px;
            color: rgba(255,255,255,0.75);
            line-height: 1.8;
            margin-bottom: 18px;
        }
        .feature-deep-text .deep-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .feature-deep-text .deep-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255,255,255,0.85);
        }
        .feature-deep-text .deep-list li::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #4CAF7D;
            flex-shrink: 0;
        }
        .feature-deep-stats {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .deep-stat-card {
            background: rgba(255,255,255,0.06);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            border: 1px solid rgba(255,255,255,0.1);
            text-align: center;
        }
        .deep-stat-card .stat-number {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
            letter-spacing: -0.5px;
        }
        .deep-stat-card .stat-label {
            font-size: 13px;
            color: rgba(255,255,255,0.65);
            margin-top: 4px;
        }

        /* Methodology */
        .methodology-block {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            padding: 48px;
        }
        .methodology-block h2 {
            font-size: 26px;
            font-weight: 700;
            margin: 0 0 20px 0;
            color: var(--text-strong);
        }
        .methodology-block .method-text {
            font-size: 15px;
            color: var(--text-mid);
            line-height: 1.85;
            margin-bottom: 20px;
        }
        .methodology-block .method-text:last-child {
            margin-bottom: 0;
        }
        .methodology-block .method-text strong {
            color: var(--primary);
            font-weight: 600;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item.open {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-soft-hover);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-strong);
            transition: background var(--transition-fast);
            border: none;
            background: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            background: var(--bg-page);
        }
        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: var(--primary-soft);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all var(--transition-base);
            font-size: 16px;
            color: var(--primary);
            font-weight: 700;
        }
        .faq-item.open .faq-question .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base) ease, padding var(--transition-base) ease;
            padding: 0 24px;
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 24px 20px 24px;
        }
        .faq-answer p {
            margin: 0;
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.75;
        }

        /* CTA */
        .cta-section {
            background: var(--primary-soft);
            border-radius: var(--radius-xl);
            padding: 48px;
            text-align: center;
            border: 1px solid var(--primary-soft-hover);
        }
        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-strong);
            margin: 0 0 12px 0;
        }
        .cta-section p {
            font-size: 15px;
            color: var(--text-weak);
            margin: 0 0 24px 0;
            line-height: 1.7;
        }
        .cta-section .cta-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-deep);
            color: rgba(255,255,255,0.75);
            padding: 56px 0 28px;
            margin-top: 60px;
            border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255,255,255,0.6);
            line-height: 1.7;
            margin: 0;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 14px 0;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255,255,255,0.6);
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 13px;
            color: rgba(255,255,255,0.5);
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom-links a {
            color: rgba(255,255,255,0.5);
            transition: color var(--transition-fast);
        }
        .footer-bottom-links a:hover {
            color: #fff;
        }
        .footer-bottom-links span {
            color: rgba(255,255,255,0.45);
        }

        /* Responsive */
        @media (max-width: 992px) {
            .category-hero {
                grid-template-columns: 1fr;
                padding: 40px 32px;
            }
            .category-hero-content h1 {
                font-size: 32px;
            }
            .feature-deep-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .report-list-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .deep-stat-card .stat-number {
                font-size: 26px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 52px;
            }
            .nav-panel {
                flex-wrap: wrap;
                padding: 12px 16px;
            }
            .hamburger {
                display: flex;
            }
            .nav-cards {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 8px;
                margin-left: 0;
                margin-top: 12px;
                order: 10;
                flex-basis: 100%;
            }
            .nav-cards.mobile-open {
                display: flex;
            }
            .nav-card-link {
                width: 100%;
                justify-content: center;
                padding: 10px 14px;
            }
            .nav-cta {
                margin-left: 0;
            }
            .category-hero {
                padding: 32px 24px;
            }
            .category-hero-content h1 {
                font-size: 28px;
            }
            .category-hero-content .hero-desc {
                font-size: 15px;
            }
            .report-feature-deep {
                padding: 36px 24px;
            }
            .deep-stat-grid {
                grid-template-columns: 1fr;
            }
            .methodology-block {
                padding: 32px 24px;
            }
            .cta-section {
                padding: 32px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .report-card {
                padding: 20px 20px;
            }
        }

        @media (max-width: 576px) {
            .container {
                padding: 0 16px;
            }
            .nav-panel {
                padding: 10px 14px;
            }
            .category-hero {
                padding: 24px 18px;
            }
            .category-hero-content h1 {
                font-size: 24px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .feature-deep-stats {
                grid-template-columns: 1fr;
            }
            .report-feature-deep {
                padding: 28px 18px;
            }
            .cta-actions {
                flex-direction: column;
            }
            .cta-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .footer-bottom-links {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

/* roulang page: category7 */
:root {
  --primary: #2B6FE0;
  --primary-hover: #1E5BB8;
  --primary-soft: #EDF3FE;
  --primary-soft-hover: #DBE7FC;
  --accent-green: #0EA47A;
  --accent-green-soft: #E6F7F1;
  --accent-orange: #F97316;
  --accent-orange-soft: #FEF3E7;
  --text-strong: #1E293B;
  --text-mid: #3D4A5C;
  --text-weak: #64748B;
  --text-faint: #94A3B8;
  --bg-page: #F5F7FA;
  --bg-card: #FFFFFF;
  --bg-deep: #14233B;
  --bg-deep-secondary: #1A2D4A;
  --border-light: #E2E8F0;
  --border-soft: #EDF1F5;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 28px rgba(0,0,0,0.09);
  --shadow-hover: 0 12px 32px rgba(30,60,120,0.14);
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --transition-fast: 0.2s ease;
  --transition-base: 0.28s ease;
  --max-width: 1200px;
  --section-gap: 80px;
  --section-gap-mobile: 52px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  background: var(--bg-page);
  color: var(--text-strong);
  line-height: 1.7;
  font-size: 16px;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

button:focus, a:focus, input:focus, textarea:focus, select:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(43, 111, 224, 0.28);
  border-radius: 4px;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

section {
  margin-bottom: var(--section-gap);
}

/* ============ 导航 ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 12px 24px;
  background: var(--bg-page);
}

.nav-panel {
  max-width: var(--max-width);
  margin: 0 auto;
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-strong);
  flex-shrink: 0;
}

.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
}

.nav-cards {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  flex: 1;
}

.nav-card-link {
  padding: 8px 14px;
  background: var(--bg-page);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-mid);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.nav-card-link:hover {
  background: var(--primary-soft);
  color: var(--primary);
  border-color: var(--primary-soft-hover);
  transform: translateY(-1px);
}

.nav-card-link.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  font-weight: 600;
}

.nav-cta {
  flex-shrink: 0;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: 8px;
  border: 1px solid var(--border-light);
  background: var(--bg-card);
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-strong);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.2px;
  transition: all var(--transition-base);
  white-space: nowrap;
  border: 2px solid transparent;
  line-height: 1.2;
}

.btn-primary {
  background: var(--primary);
  color: #FFFFFF;
  border-color: var(--primary);
}

.btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(43, 111, 224, 0.3);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 3px 8px rgba(43, 111, 224, 0.25);
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}

.btn-secondary:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
  transform: translateY(-1px);
}

.btn-secondary:active {
  transform: translateY(0);
}

.btn-ghost {
  background: var(--primary-soft);
  color: var(--primary);
  border-color: transparent;
}

.btn-ghost:hover {
  background: var(--primary-soft-hover);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 13px;
  border-radius: 8px;
}

.btn-lg {
  padding: 14px 32px;
  font-size: 16px;
}

.btn-link {
  color: var(--primary);
  font-weight: 600;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 2px;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
}

.btn-link:hover {
  border-bottom-color: var(--primary);
}

/* ============ 分类页 Hero ============ */
.category-hero {
  padding: 48px 0 28px;
}

.coop-hero-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
  padding: 44px 48px;
  position: relative;
  overflow: hidden;
}

.coop-hero-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent-green), var(--primary));
}

.coop-hero-content .hero-tag {
  display: inline-block;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 6px;
  letter-spacing: 0.4px;
  margin-bottom: 16px;
}

.coop-hero-content h1 {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.5px;
  color: var(--text-strong);
  margin-bottom: 16px;
}

.coop-hero-content h1 .highlight {
  color: var(--primary);
}

.coop-hero-content .hero-desc {
  font-size: 16px;
  color: var(--text-weak);
  line-height: 1.8;
  margin-bottom: 24px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.coop-hero-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3;
}

.coop-hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.coop-hero-image .img-badge {
  position: absolute;
  bottom: 16px;
  left: 16px;
  background: rgba(20, 35, 59, 0.85);
  color: #fff;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  backdrop-filter: blur(10px);
}

/* ============ 合作类型卡片 ============ */
.coop-types {
  margin-top: 48px;
}

.coop-types-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.coop-type-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  padding: 28px 24px;
  transition: all var(--transition-base);
  position: relative;
}

.coop-type-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.coop-type-card .type-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 16px;
}

.coop-type-card:nth-child(2) .type-icon {
  background: var(--accent-green-soft);
  color: var(--accent-green);
}

.coop-type-card:nth-child(3) .type-icon {
  background: var(--accent-orange-soft);
  color: var(--accent-orange);
}

.coop-type-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-strong);
}

.coop-type-card p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
  margin-bottom: 14px;
}

.coop-type-card .type-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.coop-type-card .type-tags span {
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 5px;
  background: var(--bg-page);
  color: var(--text-weak);
  border: 1px solid var(--border-soft);
  font-weight: 500;
}

/* ============ 合作流程 ============ */
.coop-steps {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  padding: 44px 48px;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 32px;
  position: relative;
}

.step-item {
  text-align: center;
  position: relative;
}

.step-item::after {
  content: '';
  position: absolute;
  top: 24px;
  right: -10px;
  width: 20px;
  height: 2px;
  background: var(--border-light);
}

.step-item:last-child::after {
  display: none;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.step-item h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-strong);
}

.step-item p {
  font-size: 13px;
  color: var(--text-weak);
  line-height: 1.6;
}

/* ============ 合作优势数据 ============ */
.coop-benefits {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: stretch;
}

.benefit-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.benefit-mini-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  padding: 20px;
  transition: all var(--transition-fast);
}

.benefit-mini-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.benefit-mini-card .mini-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.5px;
  margin-bottom: 4px;
}

.benefit-mini-card .mini-label {
  font-size: 13px;
  color: var(--text-weak);
  font-weight: 500;
}

.benefit-desc {
  background: var(--bg-deep);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
  color: #CBD5E1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.benefit-desc h3 {
  font-size: 22px;
  color: #fff;
  margin-bottom: 16px;
  font-weight: 600;
}

.benefit-desc p {
  font-size: 14px;
  line-height: 1.8;
  color: #94A3B8;
  margin-bottom: 12px;
}

.benefit-desc ul {
  list-style: none;
}

.benefit-desc ul li {
  font-size: 14px;
  color: #CBD5E1;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  gap: 8px;
}

.benefit-desc ul li::before {
  content: '✓';
  color: var(--accent-green);
  font-weight: 700;
}

/* ============ 合作场景 ============ */
.scenario-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.scenario-item {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  padding: 22px 18px;
  text-align: center;
  transition: all var(--transition-fast);
}

.scenario-item:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.scenario-item .scenario-emoji {
  font-size: 30px;
  margin-bottom: 10px;
}

.scenario-item h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-strong);
}

.scenario-item p {
  font-size: 12px;
  color: var(--text-weak);
  line-height: 1.6;
}

/* ============ 深度内容 ============ */
.deep-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  padding: 44px 48px;
}

.deep-block h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-strong);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--primary-soft);
}

.deep-block p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.8;
  margin-bottom: 12px;
}

/* ============ FAQ ============ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: all var(--transition-base);
}

.faq-item.open {
  border-color: var(--primary-soft-hover);
  box-shadow: var(--shadow-md);
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 18px 22px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-strong);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: all var(--transition-fast);
}

.faq-question:hover {
  color: var(--primary);
}

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

.faq-answer-content {
  padding: 0 22px 20px;
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.8;
  border-top: 1px solid var(--border-soft);
  padding-top: 14px;
}

/* ============ CTA 表单 ============ */
.cta-section {
  background: var(--bg-deep);
  border-radius: var(--radius-xl);
  padding: 48px 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.cta-info h2 {
  font-size: 28px;
  color: #fff;
  font-weight: 700;
  margin-bottom: 14px;
  line-height: 1.35;
}

.cta-info p {
  font-size: 15px;
  color: #94A3B8;
  line-height: 1.8;
  margin-bottom: 16px;
}

.cta-info .cta-contact {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 16px;
}

.cta-info .cta-contact span {
  font-size: 13px;
  color: #CBD5E1;
  display: flex;
  align-items: center;
  gap: 8px;
}

.cta-info .cta-contact span::before {
  content: '●';
  color: var(--accent-green);
  font-size: 8px;
}

.cta-form-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-lg);
}

.cta-form-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-strong);
  margin-bottom: 18px;
}

.form-group {
  margin-bottom: 14px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-mid);
  margin-bottom: 5px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--text-strong);
  background: var(--bg-page);
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(43, 111, 224, 0.15);
  outline: none;
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.form-submit {
  width: 100%;
  padding: 13px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  letter-spacing: 0.3px;
}

.form-submit:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(43, 111, 224, 0.3);
}

.form-submit:active {
  transform: translateY(0);
}

/* ============ 页脚 ============ */
.site-footer {
  background: var(--bg-deep);
  color: #94A3B8;
  padding: 48px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand p {
  font-size: 13px;
  color: #64748B;
  margin-top: 12px;
  line-height: 1.7;
  max-width: 280px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: #CBD5E1;
  margin-bottom: 14px;
}

.footer-col a {
  display: block;
  font-size: 13px;
  color: #94A3B8;
  padding: 4px 0;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: #64748B;
}

.footer-bottom-links {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-bottom-links a {
  color: #94A3B8;
  font-size: 12px;
}

.footer-bottom-links a:hover {
  color: #fff;
}

/* ============ Section Header ============ */
.section-header {
  max-width: 720px;
  margin-bottom: 32px;
}

.section-header .section-tag {
  display: inline-block;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 6px;
  letter-spacing: 0.4px;
  margin-bottom: 12px;
}

.section-header h2 {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.3px;
  color: var(--text-strong);
  margin-bottom: 12px;
}

.section-header p {
  color: var(--text-weak);
  font-size: 15px;
  line-height: 1.75;
}

.section-header.text-center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

/* ============ 响应式 ============ */
@media (max-width: 992px) {
  .nav-cards {
    display: none;
    position: absolute;
    top: 100%;
    left: 24px;
    right: 24px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    border: 1px solid var(--border-light);
  }
  .nav-cards.open {
    display: flex;
  }
  .hamburger {
    display: flex;
  }
  .nav-panel {
    position: relative;
  }
  .nav-cta {
    margin-left: auto;
  }
  .coop-hero-card {
    grid-template-columns: 1fr;
    padding: 32px 24px;
    gap: 24px;
  }
  .coop-hero-content h1 {
    font-size: 30px;
  }
  .coop-types-grid {
    grid-template-columns: 1fr 1fr;
  }
  .steps-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px 16px;
  }
  .step-item::after {
    display: none;
  }
  .coop-benefits {
    grid-template-columns: 1fr;
  }
  .scenario-strip {
    grid-template-columns: 1fr 1fr;
  }
  .deep-content {
    grid-template-columns: 1fr;
    padding: 32px 24px;
  }
  .cta-section {
    grid-template-columns: 1fr;
    padding: 32px 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --section-gap: 52px;
  }
  .site-header {
    padding: 8px 12px;
  }
  .nav-panel {
    padding: 8px 12px;
  }
  .coop-hero-card {
    padding: 24px 18px;
  }
  .coop-hero-content h1 {
    font-size: 26px;
  }
  .coop-types-grid {
    grid-template-columns: 1fr;
  }
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .benefit-cards {
    grid-template-columns: 1fr 1fr;
  }
  .scenario-strip {
    grid-template-columns: 1fr;
  }
  .cta-section {
    padding: 24px 18px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  .coop-steps {
    padding: 24px 18px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .coop-hero-content h1 {
    font-size: 22px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }
  .benefit-cards {
    grid-template-columns: 1fr;
  }
  .nav-cta {
    display: none;
  }
  .coop-steps {
    padding: 20px 14px;
  }
  .cta-form-card {
    padding: 18px;
  }
}