/* roulang page: index */
:root {
            --color-primary: #1e5eff;
            --color-primary-hover: #1a4fd8;
            --color-primary-light: #e8eeff;
            --color-dark: #1a1a2e;
            --color-bg: #f5f7fa;
            --color-card: #ffffff;
            --color-accent: #f59e0b;
            --color-success: #059669;
            --color-border: #e2e8f0;
            --color-text: #1e293b;
            --color-text-secondary: #64748b;
            --color-text-light: #94a3b8;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(26, 26, 46, 0.06);
            --shadow-md: 0 4px 16px rgba(26, 26, 46, 0.08);
            --shadow-lg: 0 8px 24px rgba(26, 26, 46, 0.12);
            --shadow-primary: 0 2px 4px rgba(30, 94, 255, 0.2);
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --spacing-section: 80px;
            --spacing-section-mobile: 48px;
            --max-width: 1200px;
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            font-size: 0.9375rem;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

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

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

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

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* Header Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 40;
            background-color: #ffffff;
            border-bottom: 1px solid var(--color-border);
            height: 64px;
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-dark);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .logo span {
            color: var(--color-primary);
        }

        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 24px;
        }

        .desktop-nav a {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 8px 10px;
            border-radius: 6px;
            white-space: nowrap;
            transition: all 0.2s ease;
        }

        .desktop-nav a:hover {
            color: var(--color-primary);
            background-color: var(--color-primary-light);
        }

        .desktop-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            background-color: var(--color-primary-light);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--color-primary);
            color: #ffffff;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-primary);
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background-color: var(--color-primary-hover);
            color: #ffffff;
            box-shadow: 0 4px 12px rgba(30, 94, 255, 0.3);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 1px 2px rgba(30, 94, 255, 0.2);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: #ffffff;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.875rem;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-primary);
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

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

        .btn-secondary:active {
            transform: translateY(1px);
        }

        /* Mobile Bottom Tab Bar */
        .mobile-tab-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 50;
            background-color: var(--color-dark);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 8px 8px calc(8px + env(safe-area-inset-bottom));
            display: none;
        }

        .mobile-tab-bar .tab-inner {
            display: flex;
            align-items: stretch;
            gap: 4px;
            max-width: 600px;
            margin: 0 auto;
        }

        .mobile-tab-bar .tab-item {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            padding: 6px 4px;
            color: #94a3b8;
            font-size: 0.6875rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            border-radius: 6px;
            transition: all 0.2s ease;
            cursor: pointer;
            text-align: center;
            line-height: 1.3;
        }

        .mobile-tab-bar .tab-item svg {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
        }

        .mobile-tab-bar .tab-item.active {
            color: var(--color-primary);
            background-color: rgba(30, 94, 255, 0.12);
        }

        .mobile-tab-bar .tab-item:not(.active):hover {
            color: #cbd5e1;
            background-color: rgba(255, 255, 255, 0.06);
        }

        @media (max-width: 767px) {
            .desktop-nav {
                display: none;
            }
            .site-header .btn-primary.header-cta {
                display: none;
            }
            .mobile-tab-bar {
                display: block;
            }
            body {
                padding-bottom: 72px;
            }
        }

        @media (min-width: 768px) {
            .mobile-tab-bar {
                display: none;
            }
        }

        /* Hero Section */
        .hero-section {
            background-color: var(--color-bg);
            background-image: linear-gradient(rgba(30, 94, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(30, 94, 255, 0.03) 1px, transparent 1px);
            background-size: 40px 40px;
            padding: 64px 0 48px;
            position: relative;
            overflow: hidden;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 2fr 3fr;
            gap: 48px;
            align-items: center;
        }

        @media (max-width: 768px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-section {
                padding: 40px 0 32px;
            }
        }

        .hero-cover-card {
            background-color: #ffffff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--color-border);
            overflow: hidden;
            aspect-ratio: 3/4;
            max-height: 480px;
            width: 100%;
            position: relative;
        }

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

        .hero-cover-card .cover-badge {
            position: absolute;
            top: 20px;
            left: 20px;
            background-color: rgba(26, 26, 46, 0.85);
            color: #ffffff;
            font-size: 0.6875rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            padding: 6px 14px;
            border-radius: 4px;
            text-transform: uppercase;
        }

        .hero-content h1 {
            font-size: 2.5rem;
            font-weight: 700;
            line-height: 1.25;
            color: var(--color-dark);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        @media (max-width: 768px) {
            .hero-content h1 {
                font-size: 1.875rem;
            }
        }

        .hero-content .hero-subtitle {
            font-size: 1rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin-bottom: 24px;
            max-width: 520px;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 28px;
        }

        .hero-data-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .hero-data-badge {
            background-color: #ffffff;
            border: 1px solid var(--color-primary);
            border-radius: var(--radius-sm);
            padding: 10px 16px;
            display: flex;
            flex-direction: column;
            gap: 2px;
            min-width: 90px;
        }

        .hero-data-badge .badge-number {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            font-variant-numeric: tabular-nums;
        }

        .hero-data-badge .badge-label {
            font-size: 0.6875rem;
            color: var(--color-text-secondary);
            font-weight: 500;
        }

        /* Section Base */
        .section {
            padding: var(--spacing-section) 0;
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--spacing-section-mobile) 0;
            }
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--color-primary);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            line-height: 1.35;
            color: var(--color-dark);
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 0.9375rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            max-width: 640px;
        }

        /* Metrics Board */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 480px) {
            .metrics-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        .metric-card {
            background-color: var(--color-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            padding: 24px 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            transition: all 0.25s ease;
        }

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

        .metric-number {
            font-size: 2.25rem;
            font-weight: 700;
            font-variant-numeric: tabular-nums;
            color: var(--color-accent);
            line-height: 1.2;
        }

        .metric-label {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            font-weight: 500;
        }

        .metric-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-success);
        }

        .metric-trend.down {
            color: #dc2626;
        }

        /* Service Matrix */
        .service-matrix {
            display: grid;
            grid-template-columns: 8fr 4fr;
            gap: 20px;
        }

        @media (max-width: 768px) {
            .service-matrix {
                grid-template-columns: 1fr;
            }
        }

        .service-card-main {
            background-color: var(--color-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all 0.3s ease;
            position: relative;
            display: flex;
            flex-direction: column;
        }

        .service-card-main:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-primary);
        }

        .service-card-main .card-image {
            width: 100%;
            height: 280px;
            overflow: hidden;
            position: relative;
        }

        .service-card-main .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .service-card-main .card-body {
            padding: 28px 32px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .service-card-main .card-number {
            font-size: 0.6875rem;
            font-weight: 700;
            letter-spacing: 0.12em;
            color: var(--color-primary);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .service-card-main .card-title {
            font-size: 1.5rem;
            font-weight: 700;
            line-height: 1.35;
            color: var(--color-dark);
            margin-bottom: 12px;
        }

        .service-card-main .card-desc {
            font-size: 0.9375rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
            flex: 1;
        }

        .service-card-main .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--color-primary);
        }

        .service-card-main .card-link:hover {
            color: var(--color-primary-hover);
            gap: 10px;
        }

        .service-card-side {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .service-card-mini {
            background-color: var(--color-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            padding: 24px 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            transition: all 0.25s ease;
            flex: 1;
        }

        .service-card-mini:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--color-primary);
        }

        .service-card-mini .card-number {
            font-size: 0.6875rem;
            font-weight: 700;
            letter-spacing: 0.12em;
            color: var(--color-primary);
            text-transform: uppercase;
        }

        .service-card-mini .card-title {
            font-size: 1.125rem;
            font-weight: 600;
            line-height: 1.4;
            color: var(--color-dark);
        }

        .service-card-mini .card-desc {
            font-size: 0.8125rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        .service-card-mini .card-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-top: auto;
        }

        /* Result Comparison */
        .comparison-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            background-color: var(--color-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            position: relative;
        }

        .comparison-divider {
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 1px;
            background-color: var(--color-border);
            z-index: 1;
        }

        @media (max-width: 768px) {
            .comparison-wrapper {
                grid-template-columns: 1fr;
            }
            .comparison-divider {
                display: none;
            }
        }

        .comparison-panel {
            padding: 32px 28px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .comparison-panel.before {
            background-color: #fafbfc;
        }

        .comparison-panel.after {
            background-color: #f0f4ff;
            border-left: 1px solid var(--color-border);
        }

        @media (max-width: 768px) {
            .comparison-panel.after {
                border-left: none;
                border-top: 1px solid var(--color-border);
            }
        }

        .comparison-panel .panel-title {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--color-dark);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .comparison-panel.before .panel-title {
            color: var(--color-text-secondary);
        }

        .comparison-panel.after .panel-title {
            color: var(--color-primary);
        }

        .comparison-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--color-border);
        }

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

        .comparison-item .icon-box {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-top: 2px;
        }

        .comparison-panel.before .icon-box {
            background-color: #fee2e2;
            color: #dc2626;
        }

        .comparison-panel.after .icon-box {
            background-color: #d1fae5;
            color: #059669;
        }

        .comparison-item .item-text {
            font-size: 0.875rem;
            line-height: 1.7;
            color: var(--color-text);
        }

        .comparison-panel.before .item-text {
            color: var(--color-text-secondary);
        }

        .comparison-panel.after .item-text {
            color: var(--color-dark);
            font-weight: 500;
        }

        .comparison-item .item-highlight {
            display: inline-block;
            background-color: var(--color-primary-light);
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.75rem;
            padding: 2px 8px;
            border-radius: 4px;
            margin-left: 4px;
        }

        /* Brand Intro */
        .brand-intro-section {
            background-color: #ffffff;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
            padding: 64px 0;
        }

        .brand-intro-grid {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            align-items: start;
        }

        @media (max-width: 768px) {
            .brand-intro-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        .brand-intro-title {
            font-size: 1.75rem;
            font-weight: 700;
            line-height: 1.35;
            color: var(--color-dark);
            margin-bottom: 16px;
        }

        .brand-intro-text {
            font-size: 0.9375rem;
            line-height: 1.9;
            color: var(--color-text-secondary);
        }

        .brand-intro-text p {
            margin-bottom: 12px;
        }

        .brand-intro-stats {
            display: flex;
            gap: 24px;
            margin-top: 20px;
            flex-wrap: wrap;
        }

        .brand-intro-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .brand-intro-stat .stat-value {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-primary);
            font-variant-numeric: tabular-nums;
        }

        .brand-intro-stat .stat-label {
            font-size: 0.75rem;
            color: var(--color-text-secondary);
        }

        /* News Section */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--color-border);
            transition: all 0.2s ease;
        }

        .news-item:hover {
            background-color: #ffffff;
            padding-left: 12px;
            border-radius: 4px;
        }

        .news-item .news-date {
            flex-shrink: 0;
            width: 80px;
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--color-text-light);
            letter-spacing: 0.03em;
            font-variant-numeric: tabular-nums;
            padding-top: 2px;
        }

        .news-item .news-content {
            flex: 1;
        }

        .news-item .news-title {
            font-size: 0.9375rem;
            font-weight: 600;
            line-height: 1.5;
            color: var(--color-dark);
            margin-bottom: 4px;
            transition: color 0.2s ease;
        }

        .news-item:hover .news-title {
            color: var(--color-primary);
        }

        .news-item .news-summary {
            font-size: 0.8125rem;
            line-height: 1.7;
            color: var(--color-text-secondary);
        }

        /* Reviews */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        @media (max-width: 1024px) {
            .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .reviews-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        .review-card {
            background-color: var(--color-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            padding: 24px 20px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: all 0.25s ease;
        }

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

        .review-card .review-header {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .review-card .review-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: var(--color-primary-light);
            color: var(--color-primary);
            font-weight: 700;
            font-size: 0.875rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .review-card .review-name {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--color-dark);
        }

        .review-card .review-role {
            font-size: 0.75rem;
            color: var(--color-text-light);
        }

        .review-card .review-text {
            font-size: 0.8125rem;
            line-height: 1.8;
            color: var(--color-text-secondary);
        }

        /* Partner Tags */
        .partner-tags-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        @media (max-width: 768px) {
            .partner-tags-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
        }

        @media (max-width: 480px) {
            .partner-tags-grid {
                grid-template-columns: 1fr;
            }
        }

        .partner-tag-card {
            background-color: var(--color-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
            padding: 16px 18px;
            display: flex;
            align-items: center;
            gap: 12px;
            transition: all 0.2s ease;
        }

        .partner-tag-card:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-sm);
        }

        .partner-tag-card .tag-icon {
            width: 32px;
            height: 32px;
            border-radius: 6px;
            background-color: var(--color-primary-light);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .partner-tag-card .tag-info {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .partner-tag-card .tag-name {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--color-dark);
        }

        .partner-tag-card .tag-desc {
            font-size: 0.75rem;
            color: var(--color-text-secondary);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
        }

        .faq-item {
            background-color: var(--color-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all 0.2s ease;
        }

        .faq-item:hover {
            border-color: #cbd5e1;
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            user-select: none;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: inherit;
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--color-dark);
            transition: color 0.2s ease;
        }

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

        .faq-question .faq-number {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 4px;
            background-color: var(--color-primary-light);
            color: var(--color-primary);
            font-size: 0.6875rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: 0.04em;
        }

        .faq-question .faq-text {
            flex: 1;
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            color: var(--color-text-light);
            transition: transform 0.3s ease;
        }

        .faq-item.active .faq-icon {
            transform: rotate(180deg);
            color: var(--color-primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 20px 16px;
        }

        .faq-answer-inner {
            font-size: 0.875rem;
            line-height: 1.8;
            color: var(--color-text-secondary);
            padding-left: 40px;
            padding-right: 8px;
        }

        /* Form Section */
        .form-section {
            background-color: #ffffff;
            border-top: 1px solid var(--color-border);
        }

        .form-card {
            background-color: var(--color-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--color-primary);
            padding: 40px 36px;
            max-width: 640px;
            margin: 0 auto;
        }

        @media (max-width: 768px) {
            .form-card {
                padding: 24px 18px;
            }
        }

        .form-card .form-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-dark);
            margin-bottom: 8px;
        }

        .form-card .form-desc {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            margin-bottom: 24px;
            line-height: 1.7;
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-group label {
            display: block;
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--color-dark);
            margin-bottom: 6px;
        }

        .form-group label .required-mark {
            color: #dc2626;
            margin-left: 2px;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            font-size: 0.875rem;
            color: var(--color-text);
            background-color: #ffffff;
            transition: all 0.2s ease;
            -webkit-appearance: none;
            appearance: none;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(30, 94, 255, 0.15);
        }

        .form-group select {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2364748b' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 40px;
        }

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

        .form-submit-btn {
            width: 100%;
            padding: 14px 20px;
            background-color: var(--color-primary);
            color: #ffffff;
            font-weight: 600;
            font-size: 0.9375rem;
            border: none;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all 0.2s ease;
            letter-spacing: 0.03em;
            box-shadow: var(--shadow-primary);
        }

        .form-submit-btn:hover {
            background-color: var(--color-primary-hover);
            box-shadow: 0 4px 14px rgba(30, 94, 255, 0.35);
        }

        .form-submit-btn:active {
            transform: translateY(1px);
        }

        .form-success-msg {
            display: none;
            background-color: #d1fae5;
            color: #065f46;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.875rem;
            font-weight: 500;
            margin-top: 12px;
            text-align: center;
        }

        .form-success-msg.show {
            display: block;
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-dark);
            color: #94a3b8;
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        .footer-brand .footer-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .footer-brand .footer-logo span {
            color: var(--color-primary);
        }

        .footer-brand .footer-desc {
            font-size: 0.8125rem;
            line-height: 1.7;
            color: #94a3b8;
            max-width: 280px;
        }

        .footer-col .footer-col-title {
            font-size: 0.875rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            font-size: 0.8125rem;
            color: #94a3b8;
            padding: 4px 0;
            transition: color 0.2s ease;
        }

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

        .footer-contact p {
            font-size: 0.8125rem;
            line-height: 1.7;
            color: #94a3b8;
            margin-bottom: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 16px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            font-size: 0.75rem;
            color: #64748b;
        }

        .footer-bottom a {
            color: #94a3b8;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        /* Floating CTA */
        .floating-cta {
            position: fixed;
            bottom: 76px;
            right: 20px;
            z-index: 45;
            display: none;
        }

        @media (max-width: 767px) {
            .floating-cta {
                display: block;
            }
        }

        .floating-cta .cta-pill {
            background-color: var(--color-primary);
            color: #ffffff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 10px 16px;
            border-radius: 24px;
            box-shadow: 0 4px 16px rgba(30, 94, 255, 0.35);
            display: flex;
            align-items: center;
            gap: 6px;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            border: none;
        }

        .floating-cta .cta-pill:hover {
            background-color: var(--color-primary-hover);
            box-shadow: 0 6px 20px rgba(30, 94, 255, 0.45);
        }

        /* Section Number Badge */
        .section-number {
            display: inline-flex;
            align-items: center;
            font-size: 0.6875rem;
            font-weight: 700;
            letter-spacing: 0.12em;
            color: var(--color-primary);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-number::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 4px;
            background-color: var(--color-primary);
            margin-right: 8px;
            border-radius: 1px;
        }

/* roulang page: category2 */
:root {
            --color-primary: #1e5eff;
            --color-primary-hover: #1a4fd8;
            --color-primary-light: #e8eeff;
            --color-dark: #1a1a2e;
            --color-bg: #f5f7fa;
            --color-card: #ffffff;
            --color-accent: #f59e0b;
            --color-success: #059669;
            --color-border: #e2e8f0;
            --color-text: #1e293b;
            --color-text-secondary: #64748b;
            --color-text-light: #94a3b8;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(26, 26, 46, 0.06);
            --shadow-md: 0 4px 16px rgba(26, 26, 46, 0.08);
            --shadow-lg: 0 8px 24px rgba(26, 26, 46, 0.12);
            --shadow-primary: 0 2px 4px rgba(30, 94, 255, 0.2);
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --spacing-section: 72px;
            --spacing-section-mobile: 44px;
            --max-width: 1200px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            font-size: 0.9375rem;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 68px;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--color-primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Header Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 40;
            background-color: #ffffff;
            border-bottom: 1px solid var(--color-border);
            height: 64px;
            display: flex;
            align-items: center;
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-dark);
            letter-spacing: 0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background-color: var(--color-primary);
            color: #ffffff;
            font-size: 1rem;
            font-weight: 700;
            border-radius: 6px;
        }
        .logo span {
            color: var(--color-primary);
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .desktop-nav a {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 8px 10px;
            border-radius: 6px;
            white-space: nowrap;
            transition: all 0.2s ease;
        }
        .desktop-nav a:hover {
            color: var(--color-primary);
            background-color: var(--color-primary-light);
        }
        .desktop-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            background-color: var(--color-primary-light);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--color-primary);
            color: #ffffff;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-primary);
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .btn-primary:hover {
            background-color: var(--color-primary-hover);
            color: #ffffff;
            box-shadow: 0 4px 12px rgba(30, 94, 255, 0.3);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 1px 2px rgba(30, 94, 255, 0.2);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: #ffffff;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.875rem;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-primary);
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .btn-secondary:hover {
            background-color: var(--color-primary-light);
            color: var(--color-primary-hover);
            border-color: var(--color-primary-hover);
        }
        .btn-secondary:active {
            transform: translateY(1px);
        }
        /* Mobile Bottom Tab Bar */
        .mobile-tab-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 50;
            background-color: var(--color-dark);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 8px 8px calc(8px + env(safe-area-inset-bottom));
            display: none;
        }
        .mobile-tab-bar .tab-inner {
            display: flex;
            align-items: center;
            justify-content: space-around;
            gap: 4px;
        }
        .mobile-tab-bar .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            font-size: 0.65rem;
            font-weight: 500;
            color: var(--color-text-light);
            padding: 4px 8px;
            border-radius: 6px;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .mobile-tab-bar .tab-item svg {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
        }
        .mobile-tab-bar .tab-item.active {
            color: var(--color-primary);
            background-color: rgba(30, 94, 255, 0.12);
        }
        .mobile-tab-bar .tab-item:hover {
            color: var(--color-primary);
        }
        /* Breadcrumb & page heading */
        .page-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8125rem;
            color: var(--color-text-secondary);
            margin-bottom: 12px;
        }
        .page-breadcrumb a {
            color: var(--color-text-secondary);
            transition: color 0.2s;
        }
        .page-breadcrumb a:hover {
            color: var(--color-primary);
        }
        .page-breadcrumb .separator {
            color: var(--color-text-light);
            user-select: none;
        }
        .page-breadcrumb .current {
            color: var(--color-primary);
            font-weight: 600;
        }
        /* Section heading */
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-primary);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-label::before {
            content: '';
            display: inline-block;
            width: 8px;
            height: 8px;
            background-color: var(--color-primary);
            border-radius: 2px;
        }
        /* Filter tags */
        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 0.8125rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            background-color: #ffffff;
            border: 1px solid var(--color-border);
            border-radius: 20px;
            cursor: pointer;
            transition: all 0.25s ease;
            white-space: nowrap;
            user-select: none;
        }
        .filter-tag:hover {
            color: var(--color-primary);
            border-color: var(--color-primary);
            background-color: var(--color-primary-light);
        }
        .filter-tag.active {
            color: #ffffff;
            background-color: var(--color-primary);
            border-color: var(--color-primary);
            font-weight: 600;
            box-shadow: var(--shadow-primary);
        }
        /* Masonry grid */
        .masonry-grid {
            columns: 2;
            column-gap: 24px;
        }
        .masonry-item {
            break-inside: avoid;
            margin-bottom: 24px;
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all 0.3s ease;
            cursor: default;
        }
        .masonry-item:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-primary);
        }
        .masonry-item .masonry-image {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
            background-color: #e8eeff;
        }
        .masonry-item .masonry-image.tall {
            height: 260px;
        }
        .masonry-item .masonry-image.short {
            height: 140px;
        }
        .masonry-item .masonry-body {
            padding: 20px 22px;
        }
        .masonry-item .masonry-tag {
            display: inline-block;
            font-size: 0.6875rem;
            font-weight: 600;
            color: var(--color-primary);
            background-color: var(--color-primary-light);
            padding: 3px 10px;
            border-radius: 4px;
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }
        .masonry-item h3 {
            font-size: 1.125rem;
            font-weight: 600;
            line-height: 1.4;
            color: var(--color-text);
            margin-bottom: 10px;
        }
        .masonry-item p {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            line-height: 1.75;
            margin-bottom: 12px;
        }
        .masonry-item .masonry-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.75rem;
            color: var(--color-text-light);
            padding-top: 12px;
            border-top: 1px solid var(--color-border);
        }
        .masonry-item .masonry-link {
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all 0.2s;
        }
        .masonry-item .masonry-link:hover {
            color: var(--color-primary-hover);
            gap: 6px;
        }
        .masonry-item .masonry-stat {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 10px;
        }
        .masonry-item .masonry-stat span {
            font-size: 0.75rem;
            color: var(--color-text-secondary);
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .masonry-item .masonry-stat strong {
            color: var(--color-accent);
            font-weight: 700;
            font-variant-numeric: tabular-nums;
        }
        /* CTA Banner */
        .cta-banner {
            background-color: var(--color-dark);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            position: relative;
            overflow: hidden;
            margin-top: 16px;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 280px;
            height: 280px;
            background-color: rgba(30, 94, 255, 0.2);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -40px;
            width: 220px;
            height: 220px;
            background-color: rgba(245, 158, 11, 0.12);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-banner .cta-content {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .cta-banner h2 {
            color: #ffffff;
            font-size: 1.75rem;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 8px;
        }
        .cta-banner p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9375rem;
            line-height: 1.7;
            max-width: 560px;
        }
        .cta-banner .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: transparent;
            color: #ffffff;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.4);
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .cta-banner .btn-ghost:hover {
            background-color: rgba(255, 255, 255, 0.1);
            border-color: #ffffff;
            color: #ffffff;
        }
        .cta-banner .btn-ghost:active {
            transform: translateY(1px);
        }
        /* Footer */
        .site-footer {
            background-color: var(--color-dark);
            color: #b0b8c8;
            padding: 48px 0 32px;
            margin-top: 72px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .site-footer .footer-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.02em;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 16px;
        }
        .site-footer .footer-logo span {
            color: var(--color-primary);
        }
        .site-footer .footer-desc {
            font-size: 0.8125rem;
            line-height: 1.7;
            color: #8b94a7;
            max-width: 320px;
            margin-bottom: 20px;
        }
        .site-footer .footer-col-title {
            display: block;
            font-size: 0.8125rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }
        .site-footer .footer-col a {
            display: block;
            font-size: 0.8125rem;
            color: #8b94a7;
            margin-bottom: 8px;
            transition: all 0.2s;
        }
        .site-footer .footer-col a:hover {
            color: var(--color-primary);
        }
        .site-footer .footer-contact p {
            font-size: 0.8125rem;
            color: #8b94a7;
            margin-bottom: 6px;
            line-height: 1.7;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.75rem;
            color: #6b7488;
        }
        .site-footer .footer-bottom a {
            color: #8b94a7;
            transition: color 0.2s;
        }
        .site-footer .footer-bottom a:hover {
            color: var(--color-primary);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .desktop-nav {
                gap: 14px;
            }
            .desktop-nav a {
                padding: 6px 8px;
                font-size: 0.8125rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .site-header {
                height: 56px;
            }
            .site-header .header-inner {
                padding: 0 16px;
            }
            .desktop-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .mobile-tab-bar {
                display: block;
            }
            body {
                padding-bottom: 80px;
            }
            .container {
                padding: 0 16px;
            }
            .masonry-grid {
                columns: 1;
                column-gap: 0;
            }
            .masonry-item {
                margin-bottom: 16px;
            }
            .masonry-item .masonry-image {
                height: 200px;
            }
            .masonry-item .masonry-image.tall {
                height: 200px;
            }
            .masonry-item .masonry-image.short {
                height: 180px;
            }
            .cta-banner {
                padding: 32px 24px;
            }
            .cta-banner h2 {
                font-size: 1.375rem;
            }
            .cta-banner .cta-content {
                flex-direction: column;
                align-items: flex-start;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .filter-tag {
                padding: 6px 12px;
                font-size: 0.75rem;
            }
        }
        @media (max-width: 480px) {
            :root {
                --spacing-section: 44px;
            }
            .site-header .logo {
                font-size: 1.25rem;
            }
            .site-header .logo .logo-mark {
                width: 28px;
                height: 28px;
                font-size: 0.875rem;
                border-radius: 5px;
            }
            .mobile-tab-bar .tab-item {
                font-size: 0.6rem;
                padding: 3px 6px;
            }
            .mobile-tab-bar .tab-item svg {
                width: 18px;
                height: 18px;
            }
            .masonry-item .masonry-body {
                padding: 16px 18px;
            }
            .masonry-item h3 {
                font-size: 1rem;
            }
            .cta-banner {
                padding: 24px 18px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #1e5eff;
            --color-primary-hover: #1a4fd8;
            --color-primary-light: #e8eeff;
            --color-dark: #1a1a2e;
            --color-bg: #f5f7fa;
            --color-card: #ffffff;
            --color-accent: #f59e0b;
            --color-success: #059669;
            --color-border: #e2e8f0;
            --color-text: #1e293b;
            --color-text-secondary: #64748b;
            --color-text-light: #94a3b8;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(26, 26, 46, 0.06);
            --shadow-md: 0 4px 16px rgba(26, 26, 46, 0.08);
            --shadow-lg: 0 8px 24px rgba(26, 26, 46, 0.12);
            --shadow-primary: 0 2px 4px rgba(30, 94, 255, 0.2);
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --spacing-section: 80px;
            --spacing-section-mobile: 48px;
            --max-width: 1200px;
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            font-size: 0.9375rem;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, background-color 0.2s ease;
        }

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

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

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

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

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
            :root {
                --spacing-section: var(--spacing-section-mobile);
            }
        }

        /* Header Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 40;
            background-color: #ffffff;
            border-bottom: 1px solid var(--color-border);
            height: 64px;
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-dark);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .logo span {
            color: var(--color-primary);
        }

        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 18px;
        }

        .desktop-nav a {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 8px 10px;
            border-radius: 6px;
            white-space: nowrap;
            transition: all 0.2s ease;
        }

        .desktop-nav a:hover {
            color: var(--color-primary);
            background-color: var(--color-primary-light);
        }

        .desktop-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            background-color: var(--color-primary-light);
        }

        .header-cta {
            white-space: nowrap;
        }

        @media (max-width: 1024px) {
            .desktop-nav a {
                padding: 6px 8px;
                font-size: 0.8125rem;
                gap: 10px;
            }
            .desktop-nav {
                gap: 6px;
            }
        }

        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .site-header {
                height: 56px;
            }
            .logo {
                font-size: 1.25rem;
            }
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--color-primary);
            color: #ffffff;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-primary);
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background-color: var(--color-primary-hover);
            color: #ffffff;
            box-shadow: 0 4px 12px rgba(30, 94, 255, 0.3);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 1px 2px rgba(30, 94, 255, 0.2);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: #ffffff;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.875rem;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-primary);
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

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

        .btn-secondary:active {
            transform: translateY(1px);
        }

        /* Mobile Bottom Tab Bar */
        .mobile-tab-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 50;
            background-color: var(--color-dark);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 6px 4px calc(6px + env(safe-area-inset-bottom));
            display: none;
        }

        .mobile-tab-bar .tab-inner {
            display: flex;
            align-items: flex-end;
            justify-content: space-around;
            max-width: 420px;
            margin: 0 auto;
        }

        .mobile-tab-bar a {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            color: var(--color-text-light);
            font-size: 0.6875rem;
            font-weight: 500;
            padding: 4px 0;
            transition: color 0.2s ease;
            white-space: nowrap;
        }

        .mobile-tab-bar a.active {
            color: var(--color-primary);
        }

        .mobile-tab-bar a:hover {
            color: var(--color-primary);
        }

        .mobile-tab-bar svg {
            width: 22px;
            height: 22px;
            flex-shrink: 0;
        }

        @media (max-width: 768px) {
            .mobile-tab-bar {
                display: block;
            }
            body {
                padding-bottom: 60px;
            }
        }

        /* Cards */
        .card-base {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
        }

        .card-base:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-primary);
        }

        /* Section labels */
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--color-primary);
            margin-bottom: 12px;
        }

        .section-label::before {
            content: '';
            display: inline-block;
            width: 16px;
            height: 2px;
            background-color: var(--color-primary);
        }

        .section-title {
            font-size: 1.5rem;
            font-weight: 600;
            line-height: 1.4;
            color: var(--color-dark);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 1.75rem;
            }
        }

        .section-desc {
            font-size: 0.9375rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 32px;
        }

        /* Hero */
        .hero-section {
            background-color: var(--color-bg);
            padding: 64px 0 56px;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(30, 94, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(30, 94, 255, 0.03) 1px, transparent 1px);
            background-size: 40px 40px;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-primary);
            background-color: var(--color-primary-light);
            border: 1px solid rgba(30, 94, 255, 0.2);
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 16px;
        }

        .hero-title {
            font-size: 2.25rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-dark);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .hero-subtitle {
            font-size: 1rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin-bottom: 24px;
            max-width: 500px;
        }

        .hero-badges-row {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .hero-stat-badge {
            background-color: #ffffff;
            border: 1px solid var(--color-primary);
            border-radius: var(--radius-sm);
            padding: 10px 16px;
            display: flex;
            flex-direction: column;
            gap: 2px;
            min-width: 100px;
        }

        .hero-stat-badge .stat-num {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }

        .hero-stat-badge .stat-label {
            font-size: 0.6875rem;
            color: var(--color-text-secondary);
            font-weight: 500;
        }

        .hero-cta-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }

        .hero-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-lg);
            background-color: #ffffff;
        }

        .hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 280px;
        }

        @media (max-width: 768px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-title {
                font-size: 1.75rem;
            }
            .hero-section {
                padding: 40px 0 36px;
            }
            .hero-badges-row {
                gap: 8px;
            }
            .hero-stat-badge {
                min-width: auto;
                flex: 1;
                padding: 8px 12px;
            }
        }

        /* Metrics */
        .metrics-section {
            padding: 48px 0;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .metric-card {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 24px 20px;
            transition: all 0.25s ease;
        }

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

        .metric-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-accent);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .metric-label {
            font-size: 0.8125rem;
            color: var(--color-text-secondary);
            font-weight: 500;
            margin-bottom: 6px;
        }

        .metric-trend {
            font-size: 0.75rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .metric-trend.up {
            color: var(--color-success);
        }
        .metric-trend.down {
            color: #dc2626;
        }

        @media (max-width: 768px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .metric-card {
                padding: 16px 14px;
            }
            .metric-num {
                font-size: 1.5rem;
            }
        }

        /* Services Matrix */
        .services-section {
            padding: 48px 0;
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 16px;
        }

        .service-main-card {
            grid-column: span 8;
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
        }

        .service-main-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-primary);
        }

        .service-main-card .service-img {
            height: 200px;
            overflow: hidden;
        }

        .service-main-card .service-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .service-main-card .service-body {
            padding: 24px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .service-num {
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        .service-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--color-dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .service-desc {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
            flex: 1;
        }

        .service-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--color-primary);
        }

        .service-link:hover {
            color: var(--color-primary-hover);
        }

        .service-side-card {
            grid-column: span 4;
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 24px 20px;
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
        }

        .service-side-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-primary);
        }

        .service-side-card .service-num {
            margin-bottom: 6px;
        }
        .service-side-card .service-title {
            font-size: 1.0625rem;
        }
        .service-side-card .service-desc {
            font-size: 0.8125rem;
        }

        @media (max-width: 768px) {
            .services-grid {
                grid-template-columns: 1fr;
            }
            .service-main-card,
            .service-side-card {
                grid-column: span 1;
            }
            .service-main-card .service-img {
                height: 160px;
            }
        }

        /* Comparison */
        .comparison-section {
            padding: 48px 0;
        }

        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            position: relative;
        }

        .comparison-divider {
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 1px;
            background-color: var(--color-border);
            transform: translateX(-50%);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .comparison-divider-circle {
            width: 32px;
            height: 32px;
            background-color: #ffffff;
            border: 1px solid var(--color-border);
            border-radius: 999px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--color-primary);
        }

        .comparison-card {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
        }

        .comparison-card.before {
            border-color: #e2e8f0;
            background-color: #f8fafc;
        }

        .comparison-card.after {
            border-color: var(--color-primary);
            background-color: #f0f5ff;
        }

        .comparison-card-header {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-dark);
        }

        .comparison-card.before .comparison-card-header {
            color: var(--color-text-secondary);
        }

        .comparison-card.after .comparison-card-header {
            color: var(--color-primary);
        }

        .comparison-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(226, 232, 240, 0.5);
            font-size: 0.875rem;
            color: var(--color-text);
            line-height: 1.7;
        }

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

        .comparison-item .icon-box {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            border-radius: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-top: 2px;
        }

        .before .icon-box {
            background-color: #fee2e2;
            color: #dc2626;
        }

        .after .icon-box {
            background-color: #d1fae5;
            color: var(--color-success);
        }

        @media (max-width: 768px) {
            .comparison-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .comparison-divider {
                display: none;
            }
            .comparison-card {
                padding: 20px 16px;
            }
        }

        /* News */
        .news-section {
            padding: 48px 0;
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .news-card {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 20px;
            transition: all 0.25s ease;
        }

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

        .news-date {
            font-size: 0.75rem;
            color: var(--color-text-light);
            font-weight: 500;
            margin-bottom: 6px;
            letter-spacing: 0.03em;
        }

        .news-title {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--color-dark);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .news-excerpt {
            font-size: 0.8125rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Reviews */
        .reviews-section {
            padding: 48px 0;
        }

        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .review-card {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 20px;
            transition: all 0.25s ease;
        }

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

        .review-header {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
        }

        .review-avatar {
            width: 36px;
            height: 36px;
            border-radius: 999px;
            background-color: var(--color-primary-light);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.875rem;
            flex-shrink: 0;
        }

        .review-name {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--color-dark);
        }

        .review-role {
            font-size: 0.75rem;
            color: var(--color-text-light);
        }

        .review-text {
            font-size: 0.8125rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }

        @media (max-width: 768px) {
            .reviews-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (min-width: 768px) and (max-width: 1024px) {
            .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* Brand intro + Partners */
        .brand-section {
            padding: 48px 0;
        }

        .brand-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: start;
        }

        .brand-intro-card {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 28px 24px;
        }

        .brand-intro-card p {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            line-height: 1.9;
            margin-bottom: 12px;
        }

        .brand-intro-card p:last-child {
            margin-bottom: 0;
        }

        .partners-card {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 28px 24px;
        }

        .partner-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .partner-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background-color: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: 999px;
            padding: 8px 14px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all 0.2s ease;
        }

        .partner-tag:hover {
            background-color: var(--color-primary-light);
            color: var(--color-primary);
            border-color: var(--color-primary);
        }

        @media (max-width: 768px) {
            .brand-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* FAQ */
        .faq-section {
            padding: 48px 0;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all 0.25s ease;
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.9375rem;
            color: var(--color-dark);
            line-height: 1.5;
            user-select: none;
            transition: color 0.2s ease;
        }

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

        .faq-num {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--color-primary);
            background-color: var(--color-primary-light);
            border-radius: 4px;
            padding: 2px 8px;
            flex-shrink: 0;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 20px;
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            line-height: 1.85;
        }

        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 20px 16px 20px;
        }

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

        /* Form */
        .form-section {
            padding: 48px 0 56px;
        }

        .form-card {
            background-color: var(--color-card);
            border: 1px solid var(--color-primary);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            padding: 32px 28px;
            max-width: 600px;
            margin: 0 auto;
        }

        .form-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--color-dark);
            margin-bottom: 8px;
        }

        .form-desc {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            margin-bottom: 20px;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--color-dark);
            margin-bottom: 6px;
        }

        .form-group label .required {
            color: #dc2626;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            background-color: #ffffff;
            font-size: 0.875rem;
            color: var(--color-text);
            transition: all 0.2s ease;
            appearance: none;
            -webkit-appearance: none;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(30, 94, 255, 0.15);
        }

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

        .form-submit {
            width: 100%;
            padding: 12px 20px;
            font-size: 0.9375rem;
            font-weight: 600;
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-dark);
            color: #b0b8c8;
            padding: 48px 0 24px;
            margin-top: 16px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.02em;
            display: inline-block;
            margin-bottom: 12px;
        }

        .footer-logo span {
            color: var(--color-primary);
        }

        .footer-desc {
            font-size: 0.8125rem;
            color: #8b93a7;
            line-height: 1.8;
            max-width: 300px;
        }

        .footer-col-title {
            font-size: 0.875rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            font-size: 0.8125rem;
            color: #8b93a7;
            padding: 4px 0;
            transition: color 0.2s ease;
        }

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

        .footer-contact p {
            font-size: 0.8125rem;
            color: #8b93a7;
            margin-bottom: 6px;
            line-height: 1.7;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.75rem;
            color: #6b7280;
        }

        .footer-bottom a {
            color: #8b93a7;
        }

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

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer {
                padding: 32px 0 20px;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #1e5eff;
            --color-primary-hover: #1a4fd8;
            --color-primary-light: #e8eeff;
            --color-dark: #1a1a2e;
            --color-bg: #f5f7fa;
            --color-card: #ffffff;
            --color-accent: #f59e0b;
            --color-success: #059669;
            --color-border: #e2e8f0;
            --color-text: #1e293b;
            --color-text-secondary: #64748b;
            --color-text-light: #94a3b8;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(26, 26, 46, 0.06);
            --shadow-md: 0 4px 16px rgba(26, 26, 46, 0.08);
            --shadow-lg: 0 8px 24px rgba(26, 26, 46, 0.12);
            --shadow-primary: 0 2px 4px rgba(30, 94, 255, 0.2);
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --spacing-section: 80px;
            --spacing-section-mobile: 48px;
            --max-width: 1200px;
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            font-size: 0.9375rem;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--color-primary);
        }

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

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

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

        .site-header {
            position: sticky;
            top: 0;
            z-index: 40;
            background-color: #ffffff;
            border-bottom: 1px solid var(--color-border);
            height: 64px;
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-dark);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .logo span {
            color: var(--color-primary);
        }

        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .desktop-nav a {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 8px 10px;
            border-radius: 6px;
            white-space: nowrap;
            transition: all 0.2s ease;
        }
        .desktop-nav a:hover {
            color: var(--color-primary);
            background-color: var(--color-primary-light);
        }
        .desktop-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            background-color: var(--color-primary-light);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--color-primary);
            color: #ffffff;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-primary);
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .btn-primary:hover {
            background-color: var(--color-primary-hover);
            color: #ffffff;
            box-shadow: 0 4px 12px rgba(30, 94, 255, 0.3);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 1px 2px rgba(30, 94, 255, 0.2);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: #ffffff;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.875rem;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-primary);
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .btn-secondary:hover {
            background-color: var(--color-primary-light);
            color: var(--color-primary-hover);
            border-color: var(--color-primary-hover);
        }
        .btn-secondary:active {
            transform: translateY(1px);
        }

        .mobile-tab-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 50;
            background-color: var(--color-dark);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 8px 8px calc(8px + env(safe-area-inset-bottom));
            display: flex;
            justify-content: space-around;
            align-items: center;
        }
        .mobile-tab-item {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            font-size: 0.75rem;
            color: var(--color-text-light);
            transition: color 0.2s ease;
            cursor: pointer;
        }
        .mobile-tab-item:hover {
            color: #ffffff;
        }
        .mobile-tab-item.active {
            color: var(--color-primary);
        }
        .mobile-tab-item svg {
            width: 22px;
            height: 22px;
        }

        .section {
            padding: var(--spacing-section) 0;
        }
        .section-subtitle {
            color: var(--color-text-secondary);
            font-size: 0.9375rem;
            line-height: 1.7;
            margin-top: 12px;
        }

        .card {
            background-color: var(--color-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-primary);
        }

        .badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 500;
            letter-spacing: 0.05em;
            padding: 4px 10px;
            border-radius: 4px;
            background-color: var(--color-primary-light);
            color: var(--color-primary);
        }

        .section-heading {
            margin-bottom: 32px;
        }
        .section-heading h2 {
            font-size: 1.65rem;
            font-weight: 600;
            line-height: 1.35;
            color: var(--color-dark);
        }
        .section-heading p {
            color: var(--color-text-secondary);
            margin-top: 10px;
            font-size: 0.9375rem;
            max-width: 720px;
        }

        .form-control {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            background-color: #ffffff;
            font-size: 0.875rem;
            transition: all 0.2s ease;
        }
        .form-control:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(30, 94, 255, 0.15);
            outline: none;
        }
        .form-label {
            display: block;
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }
        .form-group {
            margin-bottom: 16px;
        }

        .site-footer {
            background-color: var(--color-dark);
            color: #cbd5e1;
            padding: 56px 0 32px;
            margin-top: 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: #ffffff;
        }
        .footer-logo span {
            color: var(--color-primary);
        }
        .footer-desc {
            font-size: 0.875rem;
            line-height: 1.7;
            color: var(--color-text-light);
            margin-top: 12px;
            max-width: 320px;
        }
        .footer-col-title {
            font-size: 0.875rem;
            font-weight: 600;
            color: #ffffff;
            display: block;
            margin-bottom: 14px;
        }
        .footer-col a {
            display: block;
            font-size: 0.8125rem;
            color: var(--color-text-light);
            padding: 6px 0;
            transition: color 0.2s ease;
        }
        .footer-col a:hover {
            color: var(--color-primary);
        }
        .footer-contact p {
            font-size: 0.8125rem;
            color: var(--color-text-light);
            margin-bottom: 8px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.75rem;
            color: var(--color-text-light);
        }
        .footer-bottom a {
            color: var(--color-text-light);
            font-size: 0.75rem;
            margin: 0 4px;
        }
        .footer-bottom a:hover {
            color: var(--color-primary);
        }

        @media (max-width: 1024px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--spacing-section-mobile) 0;
            }
            .container {
                padding: 0 16px;
            }
            .desktop-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            body {
                padding-bottom: 72px;
            }
        }

        @media (min-width: 769px) {
            .mobile-tab-bar {
                display: none;
            }
        }

/* FAQ 展开/收起 */
        .card.expanded .answer-content {
            display: block;
        }
        .card.expanded button svg {
            transform: rotate(180deg);
        }
        .card button svg {
            transition: transform 0.3s ease;
        }

        /* 移动端底部 Tab 安全区 */
        @media (max-width: 768px) {
            .mobile-tab-bar {
                padding-bottom: calc(8px + env(safe-area-inset-bottom));
            }
            body {
                padding-bottom: calc(72px + env(safe-area-inset-bottom));
            }
        }

        /* 表单提交按钮额外样式 */
        #contact-form button[type="submit"] {
            border: none;
            cursor: pointer;
        }
        #contact-form button[type="submit"]:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        /* 流程卡片角装饰 */
        .card.relative::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 16px;
            height: 16px;
            border-top: 3px solid var(--color-primary);
            border-right: 3px solid var(--color-primary);
            border-top-right-radius: var(--radius-md);
            pointer-events: none;
        }

/* roulang page: category4 */
:root {
            --color-primary: #1e5eff;
            --color-primary-hover: #1a4fd8;
            --color-primary-light: #e8eeff;
            --color-dark: #1a1a2e;
            --color-bg: #f5f7fa;
            --color-card: #ffffff;
            --color-accent: #f59e0b;
            --color-success: #059669;
            --color-border: #e2e8f0;
            --color-text: #1e293b;
            --color-text-secondary: #64748b;
            --color-text-light: #94a3b8;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(26, 26, 46, 0.06);
            --shadow-md: 0 4px 16px rgba(26, 26, 46, 0.08);
            --shadow-lg: 0 8px 24px rgba(26, 26, 46, 0.12);
            --shadow-primary: 0 2px 4px rgba(30, 94, 255, 0.2);
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --spacing-section: 80px;
            --spacing-section-mobile: 48px;
            --max-width: 1200px;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            font-size: 0.9375rem;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

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

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

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

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* Header Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 40;
            background-color: #ffffff;
            border-bottom: 1px solid var(--color-border);
            height: 64px;
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-dark);
            letter-spacing: 0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .logo span {
            color: var(--color-primary);
        }

        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background-color: var(--color-primary);
            border-radius: 6px;
            color: #ffffff;
            font-size: 0.875rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .desktop-nav a {
            font-size: 0.8125rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 8px 12px;
            border-radius: 6px;
            white-space: nowrap;
            transition: all 0.2s ease;
            letter-spacing: 0.02em;
        }

        .desktop-nav a:hover {
            color: var(--color-primary);
            background-color: var(--color-primary-light);
        }

        .desktop-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            background-color: var(--color-primary-light);
        }

        .header-cta {
            white-space: nowrap;
        }

        @media (max-width: 1024px) {
            .desktop-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
        }

        /* Mobile Bottom Tab Bar */
        .mobile-tab-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 50;
            background-color: var(--color-dark);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 8px 8px calc(8px + env(safe-area-inset-bottom));
            display: none;
            align-items: flex-end;
            justify-content: space-around;
        }

        @media (max-width: 1024px) {
            .mobile-tab-bar {
                display: flex;
            }
        }

        .mobile-tab-item {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            padding: 4px 2px;
            color: #94a3b8;
            font-size: 0.6875rem;
            font-weight: 500;
            letter-spacing: 0.03em;
            transition: color 0.2s ease;
            border-radius: 6px;
            min-height: 44px;
            text-align: center;
            line-height: 1.3;
        }

        .mobile-tab-item svg {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
        }

        .mobile-tab-item.active {
            color: var(--color-primary);
        }

        .mobile-tab-item:hover {
            color: var(--color-primary);
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--color-primary);
            color: #ffffff;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-primary);
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background-color: var(--color-primary-hover);
            color: #ffffff;
            box-shadow: 0 4px 12px rgba(30, 94, 255, 0.3);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 1px 2px rgba(30, 94, 255, 0.2);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: #ffffff;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.875rem;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-primary);
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

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

        .btn-secondary:active {
            transform: translateY(1px);
        }

        /* Section Spacing */
        .section {
            padding: var(--spacing-section) 0;
        }

        @media (max-width: 640px) {
            .section {
                padding: var(--spacing-section-mobile) 0;
            }
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--color-primary);
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-label::before {
            content: '';
            width: 4px;
            height: 4px;
            background-color: var(--color-primary);
            border-radius: 1px;
        }

        .section-title {
            font-size: 1.5rem;
            font-weight: 600;
            line-height: 1.35;
            color: var(--color-dark);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 1.75rem;
            }
        }

        .section-desc {
            font-size: 0.9375rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 720px;
        }

        /* Cards */
        .card {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
        }

        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-primary);
        }

        /* Hero Section for Deep Service */
        .service-hero {
            position: relative;
            width: 100%;
            min-height: 420px;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center center;
            background-repeat: no-repeat;
            display: flex;
            align-items: flex-end;
            border-bottom: 4px solid var(--color-primary);
        }

        .service-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(26, 26, 46, 0.35) 0%, rgba(26, 26, 46, 0.65) 55%, rgba(26, 26, 46, 0.85) 100%);
            z-index: 1;
        }

        .service-hero-content {
            position: relative;
            z-index: 2;
            padding: 48px 24px 56px;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
        }

        .service-hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }

        .service-hero-breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color 0.2s ease;
        }

        .service-hero-breadcrumb a:hover {
            color: #ffffff;
        }

        .service-hero-breadcrumb .separator {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.75rem;
        }

        .service-hero h1 {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.3;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
            max-width: 720px;
        }

        @media (min-width: 768px) {
            .service-hero h1 {
                font-size: 2.5rem;
            }
            .service-hero {
                min-height: 480px;
            }
        }

        .service-hero-subtitle {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            max-width: 640px;
            margin-bottom: 24px;
        }

        .service-hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .service-hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 28px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.2);
        }

        .hero-badge {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.9);
            font-size: 0.8125rem;
            font-weight: 500;
            letter-spacing: 0.03em;
        }

        .hero-badge .badge-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--color-accent);
            flex-shrink: 0;
        }

        /* Metric Strip */
        .metric-strip {
            background-color: var(--color-card);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
        }

        .metric-strip-inner {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            padding: 28px 0;
        }

        @media (min-width: 768px) {
            .metric-strip-inner {
                grid-template-columns: repeat(4, 1fr);
                gap: 24px;
                padding: 36px 0;
            }
        }

        .metric-item {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .metric-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-accent);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }

        .metric-label {
            font-size: 0.8125rem;
            color: var(--color-text-secondary);
            font-weight: 500;
            letter-spacing: 0.03em;
        }

        .metric-trend {
            font-size: 0.75rem;
            color: var(--color-success);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* Service Detail Split */
        .service-detail-card {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 28px 20px;
            margin-bottom: 24px;
            transition: all 0.25s ease;
        }

        @media (min-width: 768px) {
            .service-detail-card {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
                padding: 36px 32px;
                align-items: center;
            }
        }

        .service-detail-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--color-primary);
        }

        .service-detail-card.reverse {
            direction: rtl;
        }

        .service-detail-card.reverse > * {
            direction: ltr;
        }

        .service-detail-image {
            width: 100%;
            height: 220px;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border);
        }

        .service-detail-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-md);
        }

        @media (min-width: 768px) {
            .service-detail-image {
                height: 260px;
            }
        }

        .service-detail-text h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--color-dark);
            line-height: 1.4;
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }

        .service-detail-text p {
            font-size: 0.9375rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .service-detail-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 8px;
        }

        .service-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background-color: var(--color-primary-light);
            color: var(--color-primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 4px;
            letter-spacing: 0.03em;
        }

        .service-detail-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            background-color: var(--color-primary);
            color: #ffffff;
            font-size: 0.8125rem;
            font-weight: 700;
            border-radius: 4px;
            margin-bottom: 12px;
            flex-shrink: 0;
        }

        /* Applicable Scenarios */
        .scenario-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
        }

        @media (min-width: 768px) {
            .scenario-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }
        }

        .scenario-card {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 20px;
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-primary);
        }

        .scenario-card h3 {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--color-dark);
            line-height: 1.4;
            letter-spacing: 0.01em;
        }

        .scenario-card p {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        .scenario-card .scenario-icon {
            width: 36px;
            height: 36px;
            border-radius: 6px;
            background-color: var(--color-primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            flex-shrink: 0;
        }

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

        .faq-item {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all 0.25s ease;
        }

        .faq-item:hover {
            border-color: var(--color-primary-light);
        }

        .faq-question {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 18px 20px;
            cursor: pointer;
            user-select: none;
            transition: background-color 0.2s ease;
            border: none;
            background: none;
            width: 100%;
            text-align: left;
        }

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

        .faq-number {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.05em;
            flex-shrink: 0;
            padding-top: 4px;
        }

        .faq-question-text {
            flex: 1;
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--color-dark);
            line-height: 1.5;
        }

        .faq-toggle-icon {
            flex-shrink: 0;
            color: var(--color-text-light);
            font-size: 1.25rem;
            transition: transform 0.3s ease;
            width: 20px;
            text-align: center;
            line-height: 1.5;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px 48px;
        }

        .faq-answer-inner {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            padding-top: 4px;
            border-top: 1px solid var(--color-border);
            padding-top: 14px;
        }

        /* CTA Banner */
        .cta-banner {
            background-color: var(--color-dark);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            padding: 40px 28px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

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

        .cta-banner h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #ffffff;
            line-height: 1.4;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .cta-banner p {
            font-size: 0.9375rem;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.8;
            max-width: 560px;
            margin: 0 auto 24px;
        }

        .cta-banner .btn-primary {
            font-size: 1rem;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 24px;
            margin-top: 0;
            margin-bottom: 0;
        }

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

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

        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr 1.2fr;
                gap: 24px;
            }
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-logo {
            font-size: 1.375rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.02em;
        }

        .footer-logo span {
            color: var(--color-primary);
        }

        .footer-desc {
            font-size: 0.8125rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }

        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col-title {
            font-size: 0.8125rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.9);
            letter-spacing: 0.04em;
            margin-bottom: 8px;
        }

        .footer-col a {
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.65);
            transition: color 0.2s ease;
            line-height: 1.6;
        }

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

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .footer-contact p {
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.6;
        }

        .footer-bottom {
            display: flex;
            flex-direction: column;
            gap: 8px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.5);
        }

        @media (min-width: 768px) {
            .footer-bottom {
                flex-direction: row;
                justify-content: space-between;
                align-items: center;
            }
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            transition: color 0.2s ease;
        }

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

        /* Body bottom padding for mobile tab bar */
        @media (max-width: 1024px) {
            body {
                padding-bottom: 72px;
            }
        }

        /* Utility */
        .text-accent {
            color: var(--color-accent);
        }

        .text-primary {
            color: var(--color-primary);
        }

        .bg-primary-light {
            background-color: var(--color-primary-light);
        }

/* roulang page: category5 */
:root {
            --color-primary: #1e5eff;
            --color-primary-hover: #1a4fd8;
            --color-primary-light: #e8eeff;
            --color-dark: #1a1a2e;
            --color-bg: #f5f7fa;
            --color-card: #ffffff;
            --color-accent: #f59e0b;
            --color-success: #059669;
            --color-border: #e2e8f0;
            --color-text: #1e293b;
            --color-text-secondary: #64748b;
            --color-text-light: #94a3b8;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(26, 26, 46, 0.06);
            --shadow-md: 0 4px 16px rgba(26, 26, 46, 0.08);
            --shadow-lg: 0 8px 24px rgba(26, 26, 46, 0.12);
            --shadow-primary: 0 2px 4px rgba(30, 94, 255, 0.2);
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --spacing-section: 80px;
            --spacing-section-mobile: 48px;
            --max-width: 1200px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            font-size: 0.9375rem;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 72px;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--color-primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }
        /* Header Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 40;
            background-color: #ffffff;
            border-bottom: 1px solid var(--color-border);
            height: 64px;
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 640px) {
            .site-header .container {
                padding: 0 16px;
            }
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-dark);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .logo span {
            color: var(--color-primary);
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .desktop-nav a {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 8px 10px;
            border-radius: 6px;
            white-space: nowrap;
            transition: all 0.2s ease;
        }
        .desktop-nav a:hover {
            color: var(--color-primary);
            background-color: var(--color-primary-light);
        }
        .desktop-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
            background-color: var(--color-primary-light);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--color-primary);
            color: #ffffff;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-primary);
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .header-cta:hover {
            background-color: var(--color-primary-hover);
            color: #ffffff;
            box-shadow: 0 4px 12px rgba(30, 94, 255, 0.3);
            transform: translateY(-1px);
        }
        .header-cta:active {
            transform: translateY(1px);
            box-shadow: 0 1px 2px rgba(30, 94, 255, 0.2);
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
        }
        /* Mobile Bottom Tab Bar */
        .mobile-tab-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 50;
            background-color: var(--color-dark);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 8px 8px calc(8px + env(safe-area-inset-bottom));
            display: flex;
            align-items: center;
            justify-content: space-around;
            gap: 4px;
        }
        @media (min-width: 769px) {
            .mobile-tab-bar {
                display: none;
            }
            body {
                padding-bottom: 0;
            }
        }
        .mobile-tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            font-size: 0.65rem;
            color: var(--color-text-light);
            font-weight: 500;
            transition: color 0.2s ease;
            min-width: 48px;
            padding: 4px 3px;
            border-radius: 4px;
        }
        .mobile-tab-item svg {
            width: 20px;
            height: 20px;
            stroke: currentColor;
        }
        .mobile-tab-item.active {
            color: var(--color-primary);
        }
        .mobile-tab-item:hover {
            color: var(--color-primary);
        }
        .mobile-tab-item span {
            font-size: 0.65rem;
            line-height: 1.2;
        }
        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--color-primary);
            color: #ffffff;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-primary);
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .btn-primary:hover {
            background-color: var(--color-primary-hover);
            color: #ffffff;
            box-shadow: 0 4px 12px rgba(30, 94, 255, 0.3);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 1px 2px rgba(30, 94, 255, 0.2);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: #ffffff;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.875rem;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-primary);
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .btn-secondary:hover {
            background-color: var(--color-primary-light);
            color: var(--color-primary-hover);
            border-color: var(--color-primary-hover);
        }
        .btn-secondary:active {
            transform: translateY(1px);
        }
        /* Sections */
        .section {
            padding: 48px 0;
        }
        @media (min-width: 768px) {
            .section {
                padding: 72px 0;
            }
        }
        .section-label {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-primary);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .section-label::before {
            content: '';
            display: inline-block;
            width: 24px;
            height: 2px;
            background-color: var(--color-primary);
        }
        .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-dark);
            line-height: 1.35;
            margin-bottom: 12px;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 1.75rem;
            }
        }
        .section-desc {
            font-size: 0.9375rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 32px;
        }
        /* Cards */
        .card {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        /* Form */
        .form-card {
            background-color: var(--color-card);
            border: 1px solid var(--color-primary);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 28px;
        }
        @media (min-width: 768px) {
            .form-card {
                padding: 36px;
            }
        }
        .form-input {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            font-size: 0.9375rem;
            transition: all 0.2s ease;
            background-color: #ffffff;
            color: var(--color-text);
        }
        .form-input:focus {
            border-color: var(--color-primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(30, 94, 255, 0.12);
        }
        .form-label {
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
            display: block;
        }
        .form-label .required {
            color: #dc2626;
            font-weight: 700;
        }
        /* Plan Cards */
        .plan-card {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 28px;
            transition: all 0.3s ease;
            position: relative;
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .plan-card:hover {
            box-shadow: var(--shadow-lg);
        }
        .plan-card.recommended {
            border: 2px solid var(--color-primary);
            box-shadow: 0 8px 32px rgba(30, 94, 255, 0.15);
        }
        .plan-card.recommended::before {
            content: '';
            position: absolute;
            top: -1px;
            left: -1px;
            width: 8px;
            height: 8px;
            background-color: var(--color-primary);
        }
        .plan-card.recommended::after {
            content: '';
            position: absolute;
            bottom: -1px;
            right: -1px;
            width: 8px;
            height: 8px;
            background-color: var(--color-primary);
        }
        .plan-recommend-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background-color: var(--color-primary);
            color: #ffffff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.05em;
            white-space: nowrap;
        }
        .plan-name {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-dark);
            margin-bottom: 12px;
        }
        .plan-price {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-dark);
            font-variant-numeric: tabular-nums;
            margin-bottom: 6px;
        }
        .plan-price small {
            font-size: 0.875rem;
            font-weight: 400;
            color: var(--color-text-secondary);
        }
        .plan-desc {
            font-size: 0.8125rem;
            color: var(--color-text-secondary);
            margin-bottom: 20px;
            line-height: 1.7;
        }
        .plan-feature-list {
            list-style: none;
            padding: 0;
            margin: 0 0 20px 0;
            flex: 1;
        }
        .plan-feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 0.8125rem;
            color: var(--color-text);
            padding: 6px 0;
            border-bottom: 1px solid #f1f5f9;
            line-height: 1.6;
        }
        .plan-feature-list li:last-child {
            border-bottom: none;
        }
        .plan-feature-list svg {
            width: 16px;
            height: 16px;
            stroke: var(--color-success);
            flex-shrink: 0;
            margin-top: 3px;
        }
        .plan-feature-list .unavailable {
            color: var(--color-text-light);
            text-decoration: line-through;
        }
        .plan-feature-list .unavailable svg {
            stroke: #cbd5e1;
        }
        /* Footer */
        .site-footer {
            background-color: var(--color-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 32px;
            margin-top: 64px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr 1.2fr;
                gap: 40px;
            }
        }
        .footer-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.02em;
        }
        .footer-logo span {
            color: var(--color-primary);
        }
        .footer-desc {
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            margin-top: 12px;
            max-width: 280px;
        }
        .footer-col-title {
            font-size: 0.8125rem;
            font-weight: 600;
            color: #ffffff;
            letter-spacing: 0.05em;
            margin-bottom: 14px;
            display: block;
        }
        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col a {
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s ease;
        }
        .footer-col a:hover {
            color: var(--color-primary);
        }
        .footer-contact p {
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 6px;
            line-height: 1.7;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.45);
        }
        @media (min-width: 768px) {
            .footer-bottom {
                flex-direction: row;
                justify-content: space-between;
                align-items: center;
            }
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a:hover {
            color: var(--color-primary);
        }
        /* Page specific */
        .comparison-section {
            background-color: #ffffff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            padding: 20px;
        }
        @media (min-width: 768px) {
            .comparison-section {
                padding: 28px;
            }
        }
        .cta-banner {
            background-color: var(--color-dark);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background-color: var(--color-primary);
        }
        .cta-banner h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
        }
        .cta-banner p {
            font-size: 0.9375rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 24px;
            line-height: 1.8;
        }
        .plan-image-wrap {
            margin-top: 16px;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border);
        }
        .plan-image-wrap img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        @media (min-width: 768px) {
            .plan-image-wrap img {
                height: 160px;
            }
        }