/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #2E6E9E;
            --primary-dark: #245A82;
            --primary-light: #4A8FBF;
            --primary-soft: #EAF2F8;
            --accent: #D9A06B;
            --accent-soft: #F7EBDF;
            --text: #202A32;
            --text-secondary: #5A6772;
            --text-muted: #8B969E;
            --bg: #F5F7FA;
            --bg-alt: #EFF3F7;
            --card: #FFFFFF;
            --border: #E3E9F0;
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(37, 60, 95, 0.06);
            --shadow-lg: 0 12px 24px rgba(37, 60, 95, 0.12);
            --shadow-nav: 0 4px 20px rgba(37, 60, 95, 0.08);
            --transition: 0.25s ease;
            --container: 1200px;
            --spacing-section: 88px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
            border: none;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }

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

        /* ===== 导航区 ===== */
        .site-header {
            padding: 20px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            background: linear-gradient(to bottom, rgba(245, 247, 250, 0.95), rgba(245, 247, 250, 0.75));
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .nav-panel {
            background: var(--card);
            border-radius: 18px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-nav);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 24px;
            gap: 20px;
            min-height: 68px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            box-shadow: 0 2px 8px rgba(46, 110, 158, 0.25);
        }
        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.5px;
        }
        .logo-text span {
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 16px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid transparent;
            transition: all var(--transition);
            line-height: 1.4;
        }
        .nav-link i {
            font-size: 15px;
            opacity: 0.7;
        }
        .nav-link:hover {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: rgba(46, 110, 158, 0.15);
        }
        .nav-link.active {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: rgba(46, 110, 158, 0.2);
            font-weight: 600;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            background: var(--primary);
            color: #fff !important;
            padding: 11px 22px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            min-height: 44px;
            transition: all var(--transition);
            border: 2px solid transparent;
            flex-shrink: 0;
            box-shadow: 0 2px 8px rgba(46, 110, 158, 0.2);
        }
        .nav-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(46, 110, 158, 0.25);
        }
        .nav-cta:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

        /* 导航图标占位（用简单的CSS图形模拟） */
        .nav-link .ico {
            width: 6px;
            height: 6px;
            background: currentColor;
            border-radius: 50%;
            opacity: 0.6;
        }

        /* 移动端导航 */
        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 22px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            border: 1px solid rgba(46, 110, 158, 0.15);
            flex-shrink: 0;
        }
        .nav-toggle:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            background: url('/assets/images/backpic/back-1.jpg') center center / cover no-repeat;
            padding: 96px 0 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.93) 0%, rgba(255, 255, 255, 0.85) 45%, rgba(234, 242, 248, 0.82) 100%);
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            padding: 40px 0 64px;
            max-width: 840px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 14px;
            background: var(--accent-soft);
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            color: #A8703E;
            border: 1px solid rgba(217, 160, 107, 0.3);
            margin-bottom: 28px;
        }
        .hero-badge .dot {
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
        }
        .hero h1 {
            font-size: 42px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text);
            letter-spacing: 0.5px;
            margin-bottom: 18px;
        }
        .hero h1 .highlight {
            color: var(--primary);
            position: relative;
        }
        .hero h1 .highlight::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 2px;
            width: 100%;
            height: 8px;
            background: rgba(217, 160, 107, 0.25);
            border-radius: 4px;
            z-index: -1;
        }
        .hero-desc {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 620px;
            margin-bottom: 30px;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 22px;
        }
        .hero-actions .btn-primary {
            background: var(--primary);
            color: #fff;
            padding: 13px 28px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 600;
            min-height: 48px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
            border: 2px solid transparent;
            box-shadow: 0 4px 14px rgba(46, 110, 158, 0.25);
        }
        .hero-actions .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(46, 110, 158, 0.3);
        }
        .hero-actions .btn-primary:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        .hero-actions .btn-ghost {
            background: transparent;
            color: var(--text-secondary);
            padding: 12px 24px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 500;
            min-height: 48px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
            border: 1px solid var(--border);
            background: rgba(255, 255, 255, 0.7);
        }
        .hero-actions .btn-ghost:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: #fff;
        }
        .hero-note {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .hero-note i {
            font-style: normal;
            opacity: 0.7;
        }
        .hero-benefits {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-top: 32px;
        }
        .benefit-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            background: rgba(255, 255, 255, 0.75);
            border-radius: 30px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            border: 1px solid var(--border);
            backdrop-filter: blur(4px);
            transition: all var(--transition);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
        }
        .benefit-pill .ico-check {
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--primary-soft);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 10px;
            color: var(--primary);
        }
        .benefit-pill:hover {
            border-color: var(--primary);
            background: #fff;
        }

        /* 指标看板 */
        .stats-bar {
            position: relative;
            z-index: 2;
            background: #fff;
            border-radius: 18px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-lg);
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            margin: 0 auto 40px;
            max-width: 1100px;
            overflow: hidden;
        }
        .stat-item {
            padding: 28px 20px;
            text-align: center;
            border-right: 1px solid var(--border);
        }
        .stat-item:last-child {
            border-right: none;
        }
        .stat-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -0.5px;
            font-variant-numeric: tabular-nums;
        }
        .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 6px;
            font-weight: 500;
        }

        /* ===== 通用区块 ===== */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-header {
            max-width: 720px;
            margin-bottom: 48px;
        }
        .section-header.center {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }
        .section-tag {
            display: inline-block;
            padding: 5px 14px;
            background: var(--primary-soft);
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .section-header h2 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }
        .section-header p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== 券面网格 ===== */
        .coupons-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .coupon-card {
            background: var(--card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            display: flex;
            overflow: hidden;
            transition: all var(--transition);
            position: relative;
            min-height: 200px;
        }
        .coupon-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--primary);
            opacity: 0.6;
        }
        .coupon-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(46, 110, 158, 0.2);
        }
        .coupon-card:first-child {
            grid-column: 1 / -1;
            min-height: 220px;
        }
        .coupon-card:first-child .coupon-content {
            padding: 36px 28px;
        }
        .coupon-content {
            flex: 1;
            padding: 26px 24px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .coupon-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
            width: fit-content;
        }
        .coupon-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .coupon-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 14px;
            flex: 1;
        }
        .coupon-foot {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
        }
        .coupon-meta {
            font-size: 13px;
            color: var(--text-muted);
        }
        .coupon-btn {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--primary);
            color: #fff;
            padding: 9px 18px;
            border-radius: 8px;
            font-size: 13px;
            font-weight: 600;
            min-height: 38px;
            transition: all var(--transition);
        }
        .coupon-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
        }
        .coupon-card .coupon-img {
            width: 120px;
            background-size: cover;
            background-position: center;
            position: relative;
            flex-shrink: 0;
        }
        .coupon-card:first-child .coupon-img {
            width: 200px;
        }
        .coupon-card .coupon-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to left, rgba(46, 110, 158, 0.1), transparent);
        }

        /* ===== 使用规则 ===== */
        .rules-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .rule-item {
            background: var(--card);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            position: relative;
            transition: all var(--transition);
        }
        .rule-item:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .rule-num {
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            opacity: 0.15;
            position: absolute;
            top: 16px;
            right: 20px;
            line-height: 1;
        }
        .rule-icon {
            width: 54px;
            height: 54px;
            border-radius: 14px;
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 18px;
        }
        .rule-item h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .rule-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ===== 结果对比 ===== */
        .compare-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .compare-card {
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .compare-card.before {
            background: #F4F5F7;
            border-color: #E0E3E8;
        }
        .compare-card.after {
            background: #F0F7FC;
            border-color: rgba(46, 110, 158, 0.2);
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .compare-card.after::before {
            content: '推荐';
            position: absolute;
            top: -14px;
            right: 24px;
            background: var(--primary);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
        }
        .compare-head {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 22px;
        }
        .compare-head .compare-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
        }
        .compare-card.before .compare-icon {
            background: #E8E8E8;
            color: #666;
        }
        .compare-card.after .compare-icon {
            background: var(--primary);
            color: #fff;
        }
        .compare-head h3 {
            font-size: 20px;
            font-weight: 600;
        }
        .compare-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .compare-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.5;
        }
        .compare-list li .mark {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            flex-shrink: 0;
            margin-top: 1px;
        }
        .compare-list li .mark.ok {
            background: #DCF0E3;
            color: #2E8B57;
        }
        .compare-list li .mark.no {
            background: #F5DBDB;
            color: #C0392B;
        }

        /* ===== 资讯区 ===== */
        .news-wrap {
            display: grid;
            grid-template-columns: 1.6fr 1fr;
            gap: 32px;
        }
        .news-list {
            background: var(--card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }
        .news-list-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            border-bottom: 1px solid var(--border);
            background: var(--primary-soft);
        }
        .news-list-header h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary);
        }
        .news-list-header a {
            font-size: 13px;
            color: var(--text-muted);
        }
        .news-items li {
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }
        .news-items li:last-child {
            border-bottom: none;
        }
        .news-items a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 24px;
            color: var(--text);
            font-size: 15px;
            line-height: 1.5;
            transition: all var(--transition);
        }
        .news-items a:hover {
            background: #FAFBFD;
            color: var(--primary);
            padding-left: 28px;
        }
        .news-items .news-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-left: auto;
            flex-shrink: 0;
            font-variant-numeric: tabular-nums;
        }
        .news-list .more-link {
            display: block;
            text-align: center;
            padding: 14px;
            font-size: 13px;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            transition: all var(--transition);
        }
        .news-list .more-link:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .news-side {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .side-card {
            background: var(--card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 24px;
        }
        .side-card h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 14px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border);
            position: relative;
        }
        .side-card h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -1px;
            width: 36px;
            height: 2px;
            background: var(--primary);
        }
        .side-card ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .side-card li a {
            font-size: 14px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
            line-height: 1.5;
            transition: all var(--transition);
        }
        .side-card li a:hover {
            color: var(--primary);
            transform: translateX(4px);
        }
        .side-card li a .tag-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 8px 0;
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }
        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 16px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 500;
            color: var(--text);
            transition: all var(--transition);
            border-radius: 10px;
            background: transparent;
        }
        .faq-q:hover {
            background: var(--primary-soft);
        }
        .faq-q .faq-icon {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--primary);
            flex-shrink: 0;
            transition: all 0.3s ease;
        }
        .faq-item.active .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-a {
            padding: 0 16px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-item.active .faq-a {
            display: block;
            animation: fadeIn 0.3s ease;
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(-6px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ===== CTA 区 ===== */
        .apply-section {
            background: linear-gradient(135deg, var(--bg-alt), #F0F6FB);
        }
        .apply-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .apply-info h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 18px;
            line-height: 1.3;
        }
        .apply-info p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 24px;
        }
        .apply-info ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-bottom: 28px;
        }
        .apply-info ul li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text);
        }
        .apply-info ul li .check {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: #DCF0E3;
            color: #2E8B57;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            font-weight: 700;
        }

        .apply-form-card {
            background: var(--card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
            padding: 36px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            margin-bottom: 8px;
        }
        .form-group label .required {
            color: #C0392B;
            margin-left: 2px;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            min-height: 44px;
            padding: 10px 14px;
            border: 1px solid var(--border);
            border-radius: 10px;
            font-size: 15px;
            color: var(--text);
            background: #FBFCFD;
            transition: all var(--transition);
            resize: vertical;
            line-height: 1.5;
        }
        .form-group input:hover,
        .form-group textarea:hover {
            border-color: #CBD5E1;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(46, 110, 158, 0.12);
        }
        .form-group textarea {
            min-height: 90px;
        }
        .form-group .hint {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 6px;
        }
        .form-submit {
            width: 100%;
            background: var(--primary);
            color: #fff;
            padding: 14px 24px;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            min-height: 50px;
            cursor: pointer;
            transition: all var(--transition);
            border: 2px solid transparent;
            box-shadow: 0 4px 14px rgba(46, 110, 158, 0.2);
        }
        .form-submit:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(46, 110, 158, 0.3);
        }
        .form-submit:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        .form-status {
            margin-top: 14px;
            font-size: 14px;
            padding: 10px 14px;
            border-radius: 8px;
            display: none;
        }
        .form-status.success {
            background: #DCF0E3;
            color: #2E8B57;
            display: block;
        }
        .form-status.error {
            background: #F5DBDB;
            color: #C0392B;
            display: block;
        }
        .form-privacy {
            text-align: center;
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 16px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #1E2830;
            color: #A5B2BC;
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo-text {
            color: #fff;
            font-size: 22px;
            margin-bottom: 10px;
            display: inline-block;
        }
        .footer-brand .logo-text span {
            color: #6FB0D8;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.6;
            color: #8899A5;
            margin-top: 10px;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 16px;
            color: #fff;
            font-weight: 600;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col a {
            color: #8899A5;
            font-size: 14px;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-col a:hover {
            color: #fff;
            transform: translateX(4px);
        }
        .footer-col a .ico {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }
        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: #6E7F8C;
        }
        .footer-bottom span {
            margin: 0 4px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 992px) {
            .nav-links {
                gap: 2px;
            }
            .nav-link {
                padding: 8px 12px;
                font-size: 13px;
            }
            .logo-text {
                font-size: 18px;
            }
            .nav-cta {
                padding: 10px 16px;
                font-size: 13px;
            }
            .rules-grid {
                grid-template-columns: 1fr 1fr;
            }
            .rule-item:last-child {
                grid-column: 1 / -1;
            }
            .news-wrap {
                grid-template-columns: 1fr;
            }
            .apply-wrap {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .coupon-card:first-child .coupon-img {
                width: 160px;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .nav-panel {
                flex-wrap: wrap;
                padding: 12px 16px;
                gap: 12px;
            }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding: 12px 0;
                border-top: 1px solid var(--border);
                gap: 4px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 14px;
                font-size: 14px;
                border-radius: 8px;
            }
            .nav-link.active {
                background: var(--primary-soft);
            }
            .nav-cta {
                margin-left: auto;
            }

            .hero {
                padding: 60px 0 0;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-ghost {
                justify-content: center;
                width: 100%;
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-item {
                border-bottom: 1px solid var(--border);
            }
            .stat-item:nth-child(2) {
                border-right: none;
            }
            .stat-item:nth-child(3),
            .stat-item:nth-child(4) {
                border-bottom: none;
            }
            .stat-number {
                font-size: 30px;
            }

            .section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 24px;
            }

            .coupons-grid {
                grid-template-columns: 1fr;
            }
            .coupon-card:first-child {
                grid-column: auto;
                min-height: 0;
                flex-direction: column;
            }
            .coupon-card {
                flex-direction: column;
            }
            .coupon-card:first-child .coupon-img,
            .coupon-card .coupon-img {
                width: 100%;
                height: 160px;
            }
            .coupon-card:first-child .coupon-content {
                padding: 24px;
            }

            .rules-grid {
                grid-template-columns: 1fr;
            }
            .rule-item:last-child {
                grid-column: auto;
            }

            .compare-wrap {
                grid-template-columns: 1fr;
            }

            .faq-q {
                font-size: 15px;
                padding: 16px 8px;
            }
            .faq-a {
                font-size: 14px;
            }

            .apply-form-card {
                padding: 24px;
            }
            .apply-info h2 {
                font-size: 24px;
            }

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

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .nav-panel {
                padding: 10px 14px;
            }
            .logo-text {
                font-size: 16px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }
            .nav-cta {
                padding: 10px 14px;
                font-size: 13px;
            }
            .hero {
                padding: 40px 0 0;
            }
            .hero h1 {
                font-size: 26px;
                line-height: 1.3;
            }
            .hero-desc {
                font-size: 14px;
            }
            .stats-bar {
                grid-template-columns: 1fr 1fr;
                margin-bottom: 24px;
            }
            .stat-number {
                font-size: 26px;
            }
            .stat-item {
                padding: 18px 12px;
            }
            .section-header {
                margin-bottom: 28px;
            }
            .compare-card {
                padding: 24px 20px;
            }
            .coupon-content {
                padding: 20px;
            }
            .rule-item {
                padding: 24px 20px;
            }
            .apply-form-card {
                padding: 20px;
            }
        }

/* roulang page: category1 */
:root {
  --primary: #2E6E9E;
  --primary-dark: #245A82;
  --primary-light: #4A8FBF;
  --primary-soft: #EAF2F8;
  --accent: #D9A06B;
  --accent-soft: #F7EBDF;
  --text: #202A32;
  --text-secondary: #5A6772;
  --text-muted: #8B969E;
  --bg: #F5F7FA;
  --bg-alt: #EFF3F7;
  --card: #FFFFFF;
  --border: #E3E9F0;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(37, 60, 95, 0.06);
  --shadow-lg: 0 12px 24px rgba(37, 60, 95, 0.12);
  --shadow-nav: 0 4px 20px rgba(37, 60, 95, 0.08);
  --transition: 0.25s ease;
  --container: 1200px;
  --spacing-section: 88px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
  border: none;
}

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

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

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

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

/* ===== 导航区 ===== */
.site-header {
  padding: 20px 0 10px;
  position: sticky;
  top: 0;
  z-index: 100;
  background: linear-gradient(to bottom, rgba(245, 247, 250, 0.95), rgba(245, 247, 250, 0.75));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav-panel {
  background: var(--card);
  border-radius: 18px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-nav);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  gap: 20px;
  min-height: 68px;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(46, 110, 158, 0.25);
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.5px;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  justify-content: center;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid transparent;
  transition: all var(--transition);
  line-height: 1.4;
}

.nav-link .ico {
  width: 6px;
  height: 6px;
  background: currentColor;
  border-radius: 50%;
  opacity: 0.6;
  display: inline-block;
}

.nav-link:hover {
  background: var(--primary-soft);
  color: var(--primary);
  border-color: rgba(46, 110, 158, 0.15);
}

.nav-link.active {
  background: var(--primary-soft);
  color: var(--primary);
  border-color: rgba(46, 110, 158, 0.2);
  font-weight: 600;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--primary);
  color: #fff !important;
  padding: 11px 22px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  min-height: 44px;
  transition: all var(--transition);
  border: 2px solid transparent;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(46, 110, 158, 0.2);
}

.nav-cta:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(46, 110, 158, 0.25);
}

.nav-cta:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 22px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: 1px solid rgba(46, 110, 158, 0.15);
  flex-shrink: 0;
  transition: all var(--transition);
}

.nav-toggle:hover {
  background: var(--primary);
  color: #fff;
}

/* ===== 面包屑 ===== */
.breadcrumb-wrap {
  margin-top: 28px;
  margin-bottom: 24px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 10px 18px;
  box-shadow: var(--shadow-sm);
}

.breadcrumb a {
  color: var(--text-secondary);
  transition: color var(--transition);
}

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

.breadcrumb .sep {
  color: var(--text-muted);
  opacity: 0.6;
}

.breadcrumb .current {
  color: var(--primary);
  font-weight: 600;
}

/* ===== 分类标题区 ===== */
.category-hero {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-image: url('/assets/images/backpic/back-2.jpg');
  background-size: cover;
  background-position: center;
  min-height: 330px;
  display: flex;
  align-items: center;
  padding: 56px 60px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  margin-bottom: 40px;
}

.category-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(255, 255, 255, 0.94) 0%, rgba(255, 255, 255, 0.8) 50%, rgba(234, 242, 248, 0.5) 100%);
}

.category-hero__content {
  position: relative;
  z-index: 1;
  max-width: 640px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 50px;
  border: 1px solid rgba(46, 110, 158, 0.18);
  margin-bottom: 18px;
}

.category-hero h1 {
  font-size: 42px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.25;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.category-hero h1 span {
  color: var(--primary);
}

.category-hero p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 28px;
  max-width: 540px;
}

.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  min-height: 44px;
  transition: all var(--transition);
  border: 2px solid transparent;
  box-shadow: 0 2px 10px rgba(46, 110, 158, 0.2);
}

.btn-back:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  color: #fff;
  box-shadow: 0 6px 16px rgba(46, 110, 158, 0.25);
}

.btn-back:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.category-hero__stats {
  position: relative;
  z-index: 1;
  margin-left: auto;
  display: grid;
  grid-template-columns: repeat(2, 150px);
  gap: 16px;
}

.stat-mini {
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(4px);
}

.stat-mini strong {
  display: block;
  font-size: 30px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

.stat-mini span {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ===== 标签筛选条 ===== */
.tag-section {
  margin-bottom: 56px;
}

.tag-section .section-label {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.tag-section .section-label::before {
  content: '';
  width: 4px;
  height: 16px;
  background: var(--accent);
  border-radius: 2px;
}

.tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.tag {
  padding: 8px 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 14px;
  color: var(--text-secondary);
  cursor: default;
  transition: all var(--transition);
  line-height: 1.6;
}

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

.tag.active {
  background: var(--primary-soft);
  color: var(--primary);
  border-color: rgba(46, 110, 158, 0.3);
  font-weight: 600;
}

/* ===== 内容卡片列表 ===== */
.list-section {
  padding: 0 0 var(--spacing-section);
}

.section-head {
  margin-bottom: 36px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.section-head h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.5px;
  line-height: 1.3;
}

.section-head p {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 420px;
  line-height: 1.7;
}

.video-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.video-card {
  display: flex;
  gap: 24px;
  background: var(--card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 16px;
  transition: all var(--transition);
}

.video-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: rgba(46, 110, 158, 0.25);
}

.video-card__thumb {
  flex-shrink: 0;
  width: 280px;
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
}

.video-card__thumb img {
  width: 100%;
  height: 170px;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.video-card__body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8px 4px;
  flex: 1;
}

.video-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.mini-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 4px;
  padding: 2px 10px;
  border: 1px solid rgba(46, 110, 158, 0.12);
}

.video-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.4;
}

.video-card h3 a {
  color: var(--text);
  transition: color var(--transition);
}

.video-card h3 a:hover {
  color: var(--primary);
}

.video-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 12px;
}

.video-card__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.video-card__meta span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.video-card__meta i {
  font-style: normal;
  width: 5px;
  height: 5px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
}

.card-btn {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid rgba(46, 110, 158, 0.15);
  transition: all var(--transition);
  min-height: 40px;
}

.card-btn:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(46, 110, 158, 0.2);
}

/* ===== 内容补充区 ===== */
.tips-section {
  background: var(--bg-alt);
  padding: 64px 0;
  margin-bottom: var(--spacing-section);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.tips-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
}

.tip-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 32px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}

.tip-card:hover {
  box-shadow: var(--shadow-lg);
}

.tip-card--accent {
  background: linear-gradient(135deg, var(--accent-soft), #fff);
  border-color: rgba(217, 160, 107, 0.25);
}

.tip-card .tip-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 18px;
}

.tip-card--accent .tip-icon {
  background: var(--accent);
  color: #fff;
}

.tip-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.tip-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 0 0 var(--spacing-section);
}

.faq-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 48px;
}

.faq-intro h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 14px;
}

.faq-intro p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 24px;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 22px;
  font-size: 14px;
  font-weight: 500;
  min-height: 44px;
  transition: all var(--transition);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-soft);
  box-shadow: var(--shadow-sm);
}

.faq-list {
  background: var(--card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 8px 32px;
}

.faq-item + .faq-item {
  border-top: 1px solid var(--border);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 20px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  transition: color var(--transition);
  text-align: left;
  background: transparent;
  line-height: 1.5;
}

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

.faq-question:focus-visible {
  outline: 2px solid var(--primary-light);
  outline-offset: 4px;
  border-radius: 4px;
}

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 600;
  flex-shrink: 0;
  transition: all var(--transition);
  transform: rotate(0deg);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
  padding: 0 28px 0 0;
}

.faq-item.open .faq-answer {
  max-height: 200px;
  padding-bottom: 22px;
}

/* ===== CTA 表单 ===== */
.cta-section {
  padding: 0 0 var(--spacing-section);
}

.cta-card {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  background-image: url('/assets/images/backpic/back-4.jpg');
  background-size: cover;
  background-position: center;
  padding: 56px 60px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.cta-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.92);
}

.cta-info,
.cta-form-wrap {
  position: relative;
  z-index: 1;
}

.cta-info h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.35;
  margin-bottom: 16px;
}

.cta-info p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.cta-feature-list {
  list-style: none;
  padding: 0;
}

.cta-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
  padding: 6px 0;
  line-height: 1.6;
}

.cta-feature-list li::before {
  content: '✓';
  color: var(--primary);
  font-weight: 700;
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  background: var(--primary-soft);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  margin-top: 3px;
}

.cta-form-wrap {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.form-group label .required {
  color: #D9534F;
  margin-left: 2px;
}

.form-control {
  width: 100%;
  min-height: 46px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-size: 14px;
  color: var(--text);
  transition: all var(--transition);
  resize: vertical;
}

.form-control::placeholder {
  color: var(--text-muted);
}

.form-control:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(46, 110, 158, 0.15);
}

textarea.form-control {
  min-height: 110px;
}

.submit-btn {
  width: 100%;
  min-height: 48px;
  background: var(--primary);
  color: #fff;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  box-shadow: 0 2px 8px rgba(46, 110, 158, 0.2);
}

.submit-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(46, 110, 158, 0.25);
}

.submit-btn:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.form-note {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 14px;
  line-height: 1.6;
}

.form-success {
  display: none;
  background: #EBF8F0;
  border: 1px solid #BFE8CD;
  color: #2E7D4F;
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 14px;
  text-align: center;
  margin-bottom: 16px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: 60px 0 0;
  margin-top: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}

.footer-brand .logo-text {
  display: inline-block;
  margin-bottom: 14px;
  font-size: 22px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  padding: 0;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.footer-col ul a .ico {
  width: 5px;
  height: 5px;
  background: var(--border);
  border-radius: 50%;
  transition: background var(--transition);
}

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

.footer-col ul a:hover .ico {
  background: var(--primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 24px 0;
  font-size: 13px;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.footer-bottom a {
  color: var(--text-muted);
}

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

/* ===== 响应式 ===== */
@media (max-width: 992px) {
  .nav-links {
    gap: 2px;
  }

  .nav-link {
    padding: 8px 10px;
    font-size: 13px;
  }

  .nav-cta {
    padding: 10px 16px;
    font-size: 13px;
  }

  .category-hero {
    padding: 48px 40px;
    flex-direction: column;
    align-items: flex-start;
    gap: 32px;
  }

  .category-hero__stats {
    margin-left: 0;
  }

  .faq-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .cta-card {
    grid-template-columns: 1fr;
    padding: 40px;
    gap: 32px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

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

  .site-header {
    padding: 12px 0 6px;
  }

  .nav-panel {
    flex-wrap: wrap;
    padding: 12px 16px;
    gap: 10px;
    border-radius: 14px;
  }

  .nav-toggle {
    display: flex;
    margin-left: auto;
  }

  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding-top: 8px;
    gap: 4px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-link {
    justify-content: flex-start;
    padding: 12px 14px;
    border-radius: 10px;
  }

  .nav-cta {
    width: 100%;
    margin-top: 4px;
  }

  .category-hero {
    padding: 36px 24px;
    min-height: 0;
  }

  .category-hero h1 {
    font-size: 30px;
  }

  .category-hero p {
    font-size: 15px;
  }

  .category-hero__stats {
    grid-template-columns: repeat(2, 1fr);
    width: 100%;
  }

  .stat-mini strong {
    font-size: 26px;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .section-head h2 {
    font-size: 26px;
  }

  .video-card {
    flex-direction: column;
    padding: 12px;
    gap: 16px;
  }

  .video-card__thumb {
    width: 100%;
  }

  .video-card__thumb img {
    height: 200px;
  }

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

  .tip-card {
    padding: 24px;
  }

  .faq-list {
    padding: 8px 20px;
  }

  .cta-card {
    padding: 28px 20px;
  }

  .cta-form-wrap {
    padding: 24px;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 6px;
    text-align: center;
  }
}

@media (max-width: 520px) {
  .logo-text {
    font-size: 17px;
  }

  .logo-icon {
    width: 34px;
    height: 34px;
    font-size: 16px;
  }

  .category-hero h1 {
    font-size: 26px;
  }

  .card-btn {
    width: 100%;
    justify-content: center;
  }

  .faq-question {
    font-size: 15px;
    gap: 12px;
  }

  .cta-info h2 {
    font-size: 24px;
  }

  .submit-btn {
    font-size: 14px;
  }
}