/* roulang page: index */
:root {
            --color-brand-blue: #2B5F8A;
            --color-brand-blue-dark: #1E4A6B;
            --color-brand-gold: #C8963E;
            --color-brand-gold-light: #D4A854;
            --color-brand-bamboo: #4A7C59;
            --color-brand-bamboo-light: #5D936E;
            --color-bg-light: #F0F4FA;
            --color-bg-soft-blue: #EBF0F7;
            --color-text-heading: #1A202C;
            --color-text-body: #2D3748;
            --color-text-muted: #718096;
            --color-footer-dark: #1A202C;
            --color-white: #FFFFFF;
            --radius-card: 0.75rem;
            --radius-btn: 0.5rem;
            --shadow-card: 0 2px 16px rgba(0,0,0,0.06);
            --shadow-card-hover: 0 8px 30px rgba(0,0,0,0.10);
            --shadow-nav: 0 1px 8px rgba(0,0,0,0.06);
            --shadow-btn: 0 2px 8px rgba(43,95,138,0.25);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 1rem;
            line-height: 1.7;
            color: var(--color-text-body);
            background-color: var(--color-bg-light);
            overflow-x: hidden;
        }

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

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

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }

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

        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        @media (min-width: 768px) {
            .container-main {
                padding: 0 2rem;
            }
        }

        @media (min-width: 1024px) {
            .container-main {
                padding: 0 2.5rem;
            }
        }

        /* 导航样式 */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.97);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            box-shadow: var(--shadow-nav);
            height: 64px;
            display: flex;
            align-items: center;
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        @media (min-width: 768px) {
            .nav-inner {
                padding: 0 2rem;
            }
        }

        @media (min-width: 1024px) {
            .nav-inner {
                padding: 0 2.5rem;
            }
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--color-text-heading);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--color-brand-bamboo), var(--color-brand-blue));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .nav-links {
            display: none;
            align-items: center;
            gap: 1.5rem;
            list-style: none;
        }

        @media (min-width: 768px) {
            .nav-links {
                display: flex;
            }
        }

        .nav-links a {
            color: #4A5568;
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.35rem 0.5rem;
            border-radius: 4px;
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: var(--color-brand-blue);
        }

        .nav-links a.active {
            font-weight: 600;
        }

        .nav-cta-wrap {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }

        .nav-badge {
            display: none;
            align-items: center;
            gap: 0.35rem;
            background: #FFF5F0;
            color: #C0392B;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 0.3rem 0.65rem;
            border-radius: 20px;
            white-space: nowrap;
            border: 1px solid #FDD;
        }

        @media (min-width: 640px) {
            .nav-badge {
                display: flex;
            }
        }

        .nav-badge-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #C0392B;
            animation: pulse-dot 1.5s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.5); }
        }

        .btn-nav-cta {
            background: var(--color-brand-blue);
            color: #fff;
            padding: 0.5rem 1.1rem;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            box-shadow: var(--shadow-btn);
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
        }

        .btn-nav-cta:hover {
            background: var(--color-brand-blue-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(43,95,138,0.35);
        }

        .btn-nav-cta:active {
            transform: scale(0.97);
        }

        /* 汉堡菜单 */
        .hamburger-btn {
            display: flex;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            z-index: 1001;
            flex-shrink: 0;
        }

        @media (min-width: 768px) {
            .hamburger-btn {
                display: none;
            }
        }

        .hamburger-btn span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--color-text-heading);
            border-radius: 2px;
            transition: var(--transition-fast);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: rgba(255,255,255,0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            z-index: 999;
            padding: 1rem 1.5rem 1.5rem;
            box-shadow: 0 8px 24px rgba(0,0,0,0.08);
            flex-direction: column;
            gap: 0.5rem;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            display: block;
            padding: 0.75rem 1rem;
            color: #4A5568;
            font-weight: 500;
            font-size: 1rem;
            border-radius: 8px;
            transition: background var(--transition-fast), color var(--transition-fast);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: #EBF0F7;
            color: var(--color-brand-blue);
            font-weight: 600;
        }

        .mobile-menu .btn-nav-cta {
            display: block;
            text-align: center;
            margin-top: 0.5rem;
            padding: 0.75rem;
            font-size: 1rem;
        }

        /* 主内容区域上边距 */
        .main-content {
            padding-top: 64px;
        }

        /* Hero 区域 */
        .hero-section {
            position: relative;
            background: linear-gradient(170deg, #EBF0F7 0%, #F0F4FA 30%, #FFFFFF 100%);
            overflow: hidden;
            padding: 3rem 0;
        }

        @media (min-width: 768px) {
            .hero-section {
                padding: 4rem 0;
            }
        }

        @media (min-width: 1024px) {
            .hero-section {
                padding: 5rem 0;
            }
        }

        .hero-bg-pattern {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 1;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        @media (min-width: 768px) {
            .hero-inner {
                padding: 0 2rem;
                flex-direction: row;
                text-align: left;
                align-items: center;
                gap: 3rem;
            }
        }

        @media (min-width: 1024px) {
            .hero-inner {
                padding: 0 2.5rem;
                gap: 4rem;
            }
        }

        .hero-text-wrap {
            flex: 1;
            max-width: 620px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: #FFF8F0;
            border: 1px solid #F0D5A8;
            color: #8B6914;
            font-weight: 600;
            font-size: 0.85rem;
            padding: 0.4rem 0.9rem;
            border-radius: 20px;
            margin-bottom: 1rem;
            animation: fadeInUp 0.6s ease;
        }

        .hero-badge-icon {
            font-size: 1.1rem;
        }

        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(16px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .hero-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-text-heading);
            line-height: 1.3;
            margin-bottom: 0.75rem;
            letter-spacing: -0.01em;
        }

        @media (min-width: 640px) {
            .hero-title {
                font-size: 2rem;
            }
        }

        @media (min-width: 768px) {
            .hero-title {
                font-size: 2.25rem;
            }
        }

        @media (min-width: 1024px) {
            .hero-title {
                font-size: 2.5rem;
            }
        }

        .hero-title .highlight {
            color: var(--color-brand-blue);
            position: relative;
        }

        .hero-desc {
            font-size: 1rem;
            color: var(--color-text-body);
            line-height: 1.75;
            margin-bottom: 1.5rem;
            max-width: 560px;
        }

        @media (min-width: 768px) {
            .hero-desc {
                margin-bottom: 1.75rem;
            }
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            align-items: center;
            justify-content: center;
        }

        @media (min-width: 768px) {
            .hero-cta-group {
                justify-content: flex-start;
            }
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: var(--color-brand-blue);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            padding: 0.75rem 1.6rem;
            border-radius: var(--radius-btn);
            box-shadow: var(--shadow-btn);
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--color-brand-blue-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(43,95,138,0.35);
        }

        .btn-primary:active {
            transform: scale(0.97);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: transparent;
            color: var(--color-brand-blue);
            font-weight: 600;
            font-size: 1rem;
            padding: 0.7rem 1.5rem;
            border-radius: var(--radius-btn);
            border: 2px solid var(--color-brand-blue);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: #EBF0F7;
            border-color: var(--color-brand-blue-dark);
            color: var(--color-brand-blue-dark);
        }

        .hero-visual-wrap {
            flex: 0 0 auto;
            width: 280px;
            max-width: 100%;
            margin-top: 2rem;
        }

        @media (min-width: 768px) {
            .hero-visual-wrap {
                margin-top: 0;
                width: 320px;
            }
        }

        @media (min-width: 1024px) {
            .hero-visual-wrap {
                width: 380px;
            }
        }

        .hero-stats-mini {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
            background: #fff;
            border-radius: var(--radius-card);
            padding: 1.25rem 1.5rem;
            box-shadow: var(--shadow-card);
        }

        @media (min-width: 768px) {
            .hero-stats-mini {
                flex-direction: column;
                gap: 1rem;
                padding: 1.5rem;
            }
        }

        .hero-stat-item {
            text-align: center;
            flex: 1;
            min-width: 70px;
        }

        @media (min-width: 768px) {
            .hero-stat-item {
                text-align: left;
            }
        }

        .hero-stat-num {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-brand-blue);
        }

        .hero-stat-label {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-top: 0.15rem;
        }

        /* 板块通用 */
        .section-block {
            padding: 3rem 0;
        }

        @media (min-width: 768px) {
            .section-block {
                padding: 4rem 0;
            }
        }

        @media (min-width: 1024px) {
            .section-block {
                padding: 5rem 0;
            }
        }

        .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-text-heading);
            text-align: center;
            margin-bottom: 0.5rem;
            line-height: 1.3;
        }

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

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            text-align: center;
            max-width: 600px;
            margin: 0 auto 2rem;
            line-height: 1.6;
        }

        @media (min-width: 768px) {
            .section-subtitle {
                margin-bottom: 2.5rem;
            }
        }

        /* 指标看板 */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
        }

        @media (min-width: 640px) {
            .metrics-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 1.25rem;
            }
        }

        @media (min-width: 1024px) {
            .metrics-grid {
                gap: 1.5rem;
            }
        }

        .metric-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 1.5rem 1rem;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
            border: 1px solid transparent;
        }

        .metric-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
            border-color: #E8ECF2;
        }

        .metric-icon {
            font-size: 2rem;
            margin-bottom: 0.5rem;
            display: inline-block;
        }

        .metric-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-brand-blue);
            line-height: 1.2;
        }

        @media (min-width: 768px) {
            .metric-num {
                font-size: 2.25rem;
            }
        }

        .metric-label {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-top: 0.3rem;
            line-height: 1.4;
        }

        /* 服务矩阵卡片 */
        .services-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.25rem;
        }

        @media (min-width: 640px) {
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .services-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 1.5rem;
            }
        }

        .service-card {
            background: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .service-card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
            transition: transform 0.4s ease;
        }

        .service-card:hover .service-card-img {
            transform: scale(1.04);
        }

        .service-card-body {
            padding: 1.25rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        @media (min-width: 768px) {
            .service-card-body {
                padding: 1.5rem;
            }
        }

        .service-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            margin-bottom: 0.5rem;
        }

        .tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.25rem 0.6rem;
            border-radius: 12px;
            white-space: nowrap;
        }

        .tag-gold {
            background: #FFF8EC;
            color: #8B6914;
            border: 1px solid #F0D5A8;
        }

        .tag-bamboo {
            background: #EDF5F0;
            color: #3A6349;
            border: 1px solid #C5DDCD;
        }

        .tag-blue {
            background: #EBF2F8;
            color: #2B5F8A;
            border: 1px solid #C5D8E8;
        }

        .service-card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text-heading);
            margin-bottom: 0.4rem;
            line-height: 1.4;
        }

        .service-card-desc {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.55;
            flex: 1;
            margin-bottom: 0.75rem;
        }

        .service-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 0.5rem;
            padding-top: 0.75rem;
            border-top: 1px solid #F0F2F5;
        }

        .service-card-rating {
            display: flex;
            align-items: center;
            gap: 0.3rem;
            font-size: 0.85rem;
            color: var(--color-brand-gold);
            font-weight: 600;
        }

        .btn-card-link {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--color-brand-blue);
            padding: 0.4rem 0.8rem;
            border-radius: var(--radius-btn);
            transition: background var(--transition-fast);
            white-space: nowrap;
        }

        .btn-card-link:hover {
            background: #EBF2F8;
        }

        /* 票种对比 */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.25rem;
            max-width: 900px;
            margin: 0 auto;
        }

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

        .compare-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
            text-align: center;
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
            border: 2px solid transparent;
            position: relative;
        }

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

        .compare-card.featured {
            border-color: var(--color-brand-gold);
            background: #FFFEFA;
        }

        .compare-card.featured::before {
            content: '热门推荐';
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-brand-gold);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.25rem 0.9rem;
            border-radius: 12px;
            white-space: nowrap;
        }

        .compare-card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-text-heading);
            margin-bottom: 0.5rem;
        }

        .compare-card-price {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-brand-bamboo);
            margin-bottom: 0.75rem;
        }

        .compare-card-price small {
            font-size: 0.85rem;
            font-weight: 400;
            color: var(--color-text-muted);
        }

        .compare-card-features {
            list-style: none;
            text-align: left;
            font-size: 0.88rem;
            color: var(--color-text-body);
            line-height: 1.7;
            margin-bottom: 1rem;
        }

        .compare-card-features li {
            padding: 0.3rem 0;
            display: flex;
            align-items: flex-start;
            gap: 0.4rem;
        }

        .compare-card-features li::before {
            content: '✓';
            color: var(--color-brand-bamboo);
            font-weight: 700;
            flex-shrink: 0;
        }

        .btn-compare-cta {
            display: inline-block;
            width: 100%;
            text-align: center;
            background: var(--color-brand-blue);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 0.65rem;
            border-radius: var(--radius-btn);
            transition: background var(--transition-fast);
            box-shadow: var(--shadow-btn);
        }

        .btn-compare-cta:hover {
            background: var(--color-brand-blue-dark);
        }

        .compare-card.featured .btn-compare-cta {
            background: var(--color-brand-gold);
            box-shadow: 0 2px 8px rgba(200,150,62,0.3);
        }

        .compare-card.featured .btn-compare-cta:hover {
            background: #B8862E;
        }

        /* 社会认同 */
        .social-proof-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
            max-width: 800px;
            margin: 0 auto;
        }

        @media (min-width: 640px) {
            .social-proof-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 1.25rem;
            }
        }

        .social-proof-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 1.25rem 1rem;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-fast);
        }

        .social-proof-card:hover {
            transform: translateY(-2px);
        }

        .social-proof-stars {
            color: var(--color-brand-gold);
            font-size: 1.3rem;
            margin-bottom: 0.3rem;
            letter-spacing: 2px;
        }

        .social-proof-num {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-brand-blue);
        }

        .social-proof-label {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-top: 0.2rem;
        }

        /* 资讯区 */
        .news-layout {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        @media (min-width: 768px) {
            .news-layout {
                flex-direction: row;
                gap: 2rem;
            }
        }

        .news-list-col {
            flex: 1.5;
            background: #fff;
            border-radius: var(--radius-card);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
        }

        .news-list-col h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-text-heading);
            margin-bottom: 1rem;
            padding-bottom: 0.6rem;
            border-bottom: 2px solid #F0F2F5;
        }

        .news-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

        .news-list li {
            border-bottom: 1px solid #F7F8FA;
            padding-bottom: 0.6rem;
        }

        .news-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .news-list a {
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            gap: 0.5rem;
            color: var(--color-text-body);
            font-size: 0.92rem;
            font-weight: 500;
            transition: color var(--transition-fast);
            line-height: 1.5;
        }

        .news-list a:hover {
            color: var(--color-brand-blue);
        }

        .news-list .news-date {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .news-recommend-col {
            flex: 1;
            background: #fff;
            border-radius: var(--radius-card);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
        }

        .news-recommend-col h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-text-heading);
            margin-bottom: 1rem;
            padding-bottom: 0.6rem;
            border-bottom: 2px solid #F0F2F5;
        }

        .recommend-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .recommend-list li {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .recommend-rank {
            width: 26px;
            height: 26px;
            border-radius: 6px;
            background: #EBF2F8;
            color: var(--color-brand-blue);
            font-weight: 700;
            font-size: 0.8rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .recommend-list li:nth-child(1) .recommend-rank {
            background: var(--color-brand-gold);
            color: #fff;
        }

        .recommend-list li:nth-child(2) .recommend-rank {
            background: #D4A854;
            color: #fff;
        }

        .recommend-list li:nth-child(3) .recommend-rank {
            background: #C8963E;
            color: #fff;
        }

        .recommend-list a {
            color: var(--color-text-body);
            font-size: 0.9rem;
            font-weight: 500;
            transition: color var(--transition-fast);
            line-height: 1.4;
        }

        .recommend-list a:hover {
            color: var(--color-brand-blue);
        }

        /* 平台保障 */
        .guarantee-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
            max-width: 900px;
            margin: 0 auto;
        }

        @media (min-width: 640px) {
            .guarantee-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 1.25rem;
            }
        }

        .guarantee-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 1.5rem 1rem;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
        }

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

        .guarantee-icon {
            font-size: 2.2rem;
            margin-bottom: 0.5rem;
            display: inline-block;
        }

        .guarantee-title {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--color-text-heading);
            margin-bottom: 0.3rem;
        }

        .guarantee-desc {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            line-height: 1.5;
        }

        /* 转化表单 */
        .cta-form-section {
            background: linear-gradient(160deg, #EBF0F7 0%, #F0F4FA 60%, #FFFFFF 100%);
        }

        .cta-form-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 2rem 1.5rem;
            box-shadow: var(--shadow-card);
            max-width: 700px;
            margin: 0 auto;
        }

        @media (min-width: 768px) {
            .cta-form-card {
                padding: 2.5rem;
            }
        }

        .cta-form-card h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text-heading);
            text-align: center;
            margin-bottom: 0.5rem;
        }

        .cta-form-card .cta-form-subtitle {
            text-align: center;
            color: var(--color-text-muted);
            font-size: 0.9rem;
            margin-bottom: 1.5rem;
        }

        .form-row {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-bottom: 1rem;
        }

        @media (min-width: 640px) {
            .form-row {
                flex-direction: row;
                gap: 1rem;
            }
        }

        .form-group {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 0.35rem;
        }

        .form-group label {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--color-text-heading);
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            padding: 0.7rem 0.9rem;
            border: 1.5px solid #DDE2E8;
            border-radius: 0.5rem;
            font-size: 0.95rem;
            color: var(--color-text-body);
            background: #FAFBFC;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            width: 100%;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--color-brand-blue);
            box-shadow: 0 0 0 3px rgba(43,95,138,0.08);
            background: #fff;
            outline: none;
        }

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

        .form-error {
            font-size: 0.78rem;
            color: #C0392B;
            display: none;
        }

        .btn-submit {
            display: block;
            width: 100%;
            text-align: center;
            background: var(--color-brand-blue);
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            padding: 0.8rem;
            border-radius: var(--radius-btn);
            box-shadow: var(--shadow-btn);
            transition: background var(--transition-fast), transform var(--transition-fast);
            margin-top: 0.5rem;
            cursor: pointer;
            border: none;
        }

        .btn-submit:hover {
            background: var(--color-brand-blue-dark);
            transform: translateY(-1px);
        }

        .btn-submit:active {
            transform: scale(0.98);
        }

        .form-privacy {
            text-align: center;
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-top: 0.75rem;
        }

        /* FAQ */
        .faq-list {
            max-width: 750px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: 0 1px 6px rgba(0,0,0,0.04);
            overflow: hidden;
            border: 1px solid #EEF1F5;
            transition: border-color var(--transition-fast);
        }

        .faq-item:hover {
            border-color: #DDE2E8;
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 1rem 1.25rem;
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--color-text-heading);
            background: #fff;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 0.75rem;
            border: none;
            transition: background var(--transition-fast);
            line-height: 1.5;
        }

        .faq-question:hover {
            background: #FAFBFC;
        }

        .faq-arrow {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--color-brand-blue);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            background: #FAFBFC;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 1.25rem 1rem;
            font-size: 0.92rem;
            color: var(--color-text-body);
            line-height: 1.7;
        }

        .faq-item.open .faq-question {
            background: #EBF0F7;
            color: var(--color-brand-blue);
        }

        /* 页脚 */
        .site-footer {
            background: var(--color-footer-dark);
            color: #CBD5E0;
            padding: 3rem 0 1.5rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr 1fr;
                padding: 0 2.5rem;
            }
        }

        .footer-col h4 {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }

        .footer-col p {
            font-size: 0.88rem;
            line-height: 1.7;
            margin-bottom: 0.5rem;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer-col ul a {
            font-size: 0.88rem;
            color: #A0AEC0;
            transition: color var(--transition-fast);
        }

        .footer-col ul a:hover {
            color: var(--color-brand-gold-light);
        }

        .footer-bottom {
            max-width: 1200px;
            margin: 2rem auto 0;
            padding: 1.25rem 1.5rem 0;
            border-top: 1px solid #2D3748;
            text-align: center;
            font-size: 0.82rem;
            color: #718096;
        }

        @media (min-width: 1024px) {
            .footer-bottom {
                padding: 1.25rem 2.5rem 0;
            }
        }

        .footer-bottom strong {
            color: #CBD5E0;
        }

        /* 响应式微调 */
        @media (max-width: 639px) {
            .hero-title {
                font-size: 1.55rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .metric-num {
                font-size: 1.6rem;
            }
            .compare-card-price {
                font-size: 1.5rem;
            }
        }

        /* 焦点可见轮廓 */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-brand-blue);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* 平滑滚动偏移 */
        .section-block {
            scroll-margin-top: 80px;
        }