/* roulang page: index */
/* ========== :root 设计变量 ========== */
        :root {
            --primary: #E07830;
            --primary-dark: #b95e20;
            --primary-light: rgba(224, 120, 48, 0.12);
            --primary-glow: rgba(224, 120, 48, 0.15);
            --secondary: #33261E;
            --bg: #F6F0E6;
            --white: #FFFFFF;
            --mint: #7FB89A;
            --text: #33261E;
            --text-light: #6f5e52;
            --text-muted: #8d7d72;
            --border: rgba(60, 40, 20, 0.08);
            --shadow-sm: 0 6px 20px rgba(120, 70, 35, 0.08);
            --shadow-md: 0 12px 30px rgba(120, 70, 35, 0.14);
            --radius-card: 16px;
            --radius-btn: 100px;
            --radius-badge: 6px;
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        /* ========== Reset & Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--text);
            text-decoration: none;
            transition: color .2s ease, border-color .2s ease, background .2s ease;
        }

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: 0.01em;
            color: var(--text);
            margin-top: 0;
        }

        p {
            margin-top: 0;
            margin-bottom: 1rem;
            max-width: 680px;
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== 导航系统：侧边栏 ========== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 220px;
            background: var(--bg);
            border-right: 1px solid var(--border);
            z-index: 1060;
            padding: 20px 16px;
            display: flex;
            flex-direction: column;
            transition: transform .3s ease;
        }

        .sidebar .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px 24px;
            margin-bottom: 12px;
            border-bottom: 1px solid var(--border);
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }

        .brand-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .side-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex: 1;
        }

        .side-nav .nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            height: 48px;
            padding: 0 16px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: background .2s ease, color .2s ease;
        }

        .side-nav .nav-link i {
            width: 18px;
            text-align: center;
            font-size: 16px;
            color: var(--text-muted);
            transition: color .2s ease;
        }

        .side-nav .nav-link:hover {
            background: rgba(224, 120, 48, 0.10);
            color: var(--primary);
        }

        .side-nav .nav-link:hover i {
            color: var(--primary);
        }

        .side-nav .nav-link.active {
            background: rgba(224, 120, 48, 0.10);
            color: var(--primary);
            font-weight: 600;
            border-left: 4px solid var(--primary);
            padding-left: 12px;
        }

        .side-nav .nav-link.active i {
            color: var(--primary);
        }

        .side-nav .nav-link:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .sidebar-close {
            display: none;
            position: absolute;
            top: 16px;
            right: 16px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid var(--border);
            background: transparent;
            color: var(--text);
            font-size: 20px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            line-height: 1;
        }

        .sidebar-close:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .sidebar-backdrop {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(51, 38, 30, 0.5);
            z-index: 1050;
        }

        .sidebar-backdrop.show {
            display: block;
        }

        /* ========== 移动端顶部栏 ========== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: var(--white);
            border-bottom: 1px solid var(--border);
            z-index: 1040;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
        }

        .mobile-header .brand {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .mobile-header .brand-name {
            font-size: 18px;
        }

        .menu-toggle {
            width: 40px;
            height: 40px;
            border: none;
            background: transparent;
            color: var(--text);
            font-size: 22px;
            cursor: pointer;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .menu-toggle:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .menu-toggle:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ========== 主内容布局 ========== */
        .main-wrapper {
            margin-left: 220px;
            width: calc(100% - 220px);
            min-height: 100vh;
        }

        main {
            overflow: hidden;
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            background: var(--secondary);
            min-height: 80vh;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            background-image: url('/assets/images/backpic/back-1.jpg');
            opacity: 0.55;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(51, 38, 30, 0.88) 0%, rgba(51, 38, 30, 0.65) 50%, rgba(51, 38, 30, 0.35) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding: 60px 0;
        }

        .hero-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 100px;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }

        .hero h1 {
            font-size: clamp(32px, 5vw, 46px);
            font-weight: 700;
            color: var(--white);
            margin-bottom: 20px;
            max-width: 680px;
            line-height: 1.25;
        }

        .hero-desc {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.92);
            max-width: 580px;
            margin-bottom: 32px;
            margin-top: 0;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            margin-bottom: 40px;
        }

        .btn {
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 1px solid transparent;
            transition: all .25s ease;
            cursor: pointer;
            line-height: 1;
        }

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

        .btn-primary-custom {
            background: var(--primary);
            color: var(--white);
            border-color: var(--primary);
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

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

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

        .btn-play {
            width: 56px;
            height: 56px;
            padding: 0;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.15);
            border: 2px solid rgba(255, 255, 255, 0.5);
            color: var(--white);
            font-size: 20px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all .25s ease;
            backdrop-filter: blur(4px);
        }

        .btn-play:hover {
            background: var(--primary);
            border-color: var(--primary);
            transform: scale(1.08);
        }

        .btn-play:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 4px;
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
        }

        .hero-stats .stat-item {
            color: var(--white);
        }

        .hero-stats .stat-num {
            font-size: 40px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            font-size: clamp(28px, 4vw, 40px);
        }

        .hero-stats .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }

        /* 波浪分隔线 */
        .wave-divider {
            position: relative;
            height: 60px;
            margin-top: -1px;
            pointer-events: none;
        }

        .wave-divider svg {
            display: block;
            width: 100%;
            height: 100%;
        }

        .wave-divider .wave-fill {
            fill: var(--bg);
        }

        .wave-divider.dark .wave-fill {
            fill: var(--secondary);
        }

        /* ========== 分类入口 ========== */
        .category-entry {
            padding: 72px 0 48px;
            background: var(--bg);
        }

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

        .section-head .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 100px;
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }

        .section-head h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 700;
            margin-bottom: 12px;
            max-width: 680px;
        }

        .section-head p {
            color: var(--text-light);
            font-size: 16px;
            max-width: 680px;
            margin-bottom: 0;
        }

        .entry-card {
            display: flex;
            flex-direction: column;
            height: 100%;
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all .25s ease;
            color: var(--text);
        }

        .entry-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            color: var(--text);
            background: var(--white);
        }

        .entry-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 18px;
            transition: background .25s ease;
        }

        .entry-card:hover .entry-icon {
            background: rgba(224, 120, 48, 0.18);
        }

        .entry-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .entry-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }

        .entry-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap .2s ease;
        }

        .entry-card:hover .entry-link {
            gap: 10px;
        }

        /* ========== 资源列表 ========== */
        .resource-list {
            padding: 48px 0 72px;
            background: var(--bg);
        }

        .resource-card {
            background: var(--white);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all .25s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .resource-card .cover-wrap {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            aspect-ratio: 16 / 10;
        }

        .resource-card .cover-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .resource-card:hover .cover-wrap img {
            transform: scale(1.03);
        }

        .resource-card-body {
            padding: 22px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .resource-card-body .card-badge {
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 6px;
            display: inline-block;
            align-self: flex-start;
            margin-bottom: 12px;
            background: rgba(127, 184, 154, 0.15);
            color: #4f8f70;
        }

        .resource-card-body h3 {
            font-size: 19px;
            font-weight: 600;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .resource-card-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }

        .resource-card-body .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .resource-card-body .tag {
            font-size: 12px;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 12px;
            border-radius: 100px;
            font-weight: 500;
        }

        /* ========== 优势数据 ========== */
        .stats-section {
            background: var(--secondary);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: radial-gradient(rgba(224, 120, 48, 0.15) 1px, transparent 1px);
            background-size: 32px 32px;
            opacity: 0.4;
            pointer-events: none;
        }

        .stats-section .stats-item {
            text-align: center;
            padding: 24px 16px;
            position: relative;
            z-index: 1;
        }

        .stats-section .stat-num {
            font-size: clamp(36px, 5vw, 52px);
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

        .stats-section .stat-title {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.92);
            font-weight: 600;
            margin-bottom: 6px;
            margin-top: 10px;
        }

        .stats-section .stat-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 0;
        }

        /* ========== 案例 ========== */
        .cases-section {
            padding: 72px 0;
            background: var(--bg);
        }

        .case-card {
            background: var(--white);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            margin-bottom: 24px;
            transition: all .25s ease;
        }

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

        .case-card .row {
            align-items: center;
        }

        .case-cover {
            overflow: hidden;
            position: relative;
            min-height: 220px;
        }

        .case-cover img {
            width: 100%;
            height: 100%;
            min-height: 220px;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .case-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(51, 38, 30, 0.1) 0%, transparent 60%);
        }

        .case-card:hover .case-cover img {
            transform: scale(1.03);
        }

        .case-body {
            padding: 28px 32px;
        }

        .case-body .case-badge {
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 6px;
            margin-bottom: 14px;
            display: inline-block;
            background: rgba(127, 184, 154, 0.15);
            color: #4f8f70;
        }

        .case-body h3 {
            font-size: 22px;
            font-weight: 600;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .case-body p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .case-body .case-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .case-body .tag {
            font-size: 13px;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 14px;
            border-radius: 100px;
            font-weight: 500;
        }

        /* ========== 资讯 ========== */
        .news-section {
            padding: 72px 0;
            background: var(--white);
        }

        .news-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .news-list li {
            border-bottom: 1px solid var(--border);
            transition: background .2s ease;
        }

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

        .news-list a {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 16px 8px;
            border-radius: 8px;
        }

        .news-list a:hover {
            background: var(--primary-light);
            color: var(--text);
        }

        .news-list .news-title {
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            flex: 1;
        }

        .news-list .news-date {
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
        }

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

        .news-list a:hover .news-date {
            color: var(--primary);
        }

        .recommend-card {
            background: var(--bg);
            border-radius: var(--radius-card);
            padding: 20px;
            border: 1px solid var(--border);
            margin-bottom: 16px;
            display: flex;
            gap: 16px;
            align-items: center;
            transition: all .2s ease;
        }

        .recommend-card:hover {
            background: var(--white);
            box-shadow: var(--shadow-sm);
            transform: translateX(3px);
        }

        .recommend-card img {
            width: 72px;
            height: 72px;
            border-radius: 12px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .recommend-card .rec-text {
            flex: 1;
        }

        .recommend-card .rec-text h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .recommend-card .rec-text span {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ========== 方案 ========== */
        .plans-section {
            padding: 72px 0;
            background: var(--bg);
        }

        .plans-sticky {
            position: sticky;
            top: 30px;
        }

        .plans-sticky h2 {
            font-size: clamp(24px, 3vw, 34px);
            margin-bottom: 12px;
        }

        .plans-sticky p {
            color: var(--text-light);
            margin-bottom: 20px;
        }

        .plans-sticky .consult-link {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: gap .2s ease;
        }

        .plans-sticky .consult-link:hover {
            gap: 12px;
            color: var(--primary-dark);
        }

        .plan-card {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            display: flex;
            gap: 24px;
            margin-bottom: 24px;
            transition: all .25s ease;
            position: relative;
            overflow: hidden;
        }

        .plan-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--primary);
            transform: scaleY(0);
            transition: transform .2s ease;
        }

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

        .plan-card:hover::before {
            transform: scaleY(1);
        }

        .plan-num {
            font-size: 48px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
            flex-shrink: 0;
            width: 64px;
        }

        .plan-content {
            flex: 1;
        }

        .plan-content h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .plan-content .plan-audience {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .plan-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .plan-list li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 8px;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }

        .plan-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 8px;
            height: 8px;
            border-radius: 2px;
            background: var(--primary);
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 72px 0;
            background: var(--white);
        }

        .faq-accordion .accordion-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 12px;
            margin-bottom: 12px;
            box-shadow: none;
            overflow: hidden;
            transition: all .25s ease;
        }

        .faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)) {
            background: var(--white);
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .faq-accordion .accordion-button {
            background: transparent;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            padding: 18px 20px;
            height: auto;
            min-height: 48px;
            box-shadow: none;
            border: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: color .2s ease;
        }

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

        .faq-accordion .accordion-button::after {
            display: none;
        }

        .faq-accordion .accordion-button .faq-icon {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: transform .3s ease, background .3s ease;
        }

        .faq-accordion .accordion-button:not(.collapsed) .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: var(--white);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: transparent;
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border: none;
        }

        .faq-accordion .accordion-button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: -2px;
            border-radius: 12px;
        }

        .faq-accordion .accordion-body {
            padding: 0 20px 18px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
            background: transparent;
            border-top: none;
        }

        .faq-more {
            text-align: center;
            margin-top: 24px;
        }

        .faq-more a {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .faq-more a:hover {
            color: var(--primary-dark);
            gap: 10px;
        }

        /* ========== 下载引导 ========== */
        .download-section {
            padding: 72px 0;
            background: var(--secondary);
            position: relative;
            overflow: hidden;
        }

        .download-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            pointer-events: none;
        }

        .download-content {
            position: relative;
            z-index: 1;
            max-width: 680px;
        }

        .download-content h2 {
            color: var(--white);
            font-size: clamp(24px, 3vw, 34px);
            margin-bottom: 16px;
        }

        .download-content p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 16px;
            margin-bottom: 28px;
        }

        .download-content .btn-primary-custom {
            background: var(--primary);
            border-color: var(--primary);
        }

        .download-content .btn-primary-custom:hover {
            background: var(--primary-dark);
        }

        .download-note {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 14px;
        }

        /* ========== 联系 ========== */
        .contact-section {
            padding: 72px 0;
            background: var(--bg);
        }

        .contact-card {
            background: var(--white);
            border-radius: 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            padding: 40px;
            overflow: hidden;
        }

        .contact-info h2 {
            font-size: clamp(24px, 3vw, 32px);
            margin-bottom: 16px;
        }

        .contact-info .contact-desc {
            color: var(--text-light);
            margin-bottom: 28px;
            font-size: 16px;
        }

        .contact-meta {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
        }

        .contact-meta li {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 16px;
            font-size: 15px;
            color: var(--text);
        }

        .contact-meta li i {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }

        .contact-info .contact-img {
            border-radius: 16px;
            overflow: hidden;
            margin-top: 24px;
        }

        .contact-info .contact-img img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }

        .contact-form label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            display: block;
        }

        .contact-form .form-control,
        .contact-form .form-select {
            height: 48px;
            border-radius: 12px;
            border: 1px solid rgba(60, 40, 20, 0.12);
            padding: 10px 16px;
            font-size: 15px;
            color: var(--text);
            background: var(--white);
            transition: border-color .2s ease, box-shadow .2s ease;
            width: 100%;
        }

        .contact-form textarea.form-control {
            height: 120px;
            resize: vertical;
        }

        .contact-form .form-control:focus,
        .contact-form .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(224, 120, 48, 0.15);
            outline: none;
        }

        .contact-form .form-control::placeholder {
            color: #aaa;
        }

        .contact-form .form-select {
            appearance: auto;
        }

        .contact-form .btn-primary-custom {
            width: 100%;
            margin-top: 8px;
        }

        .privacy-note {
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
            margin-top: 16px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--secondary);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 24px;
            border-top: 2px solid var(--primary);
        }

        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .site-footer .footer-brand .brand-icon {
            width: 36px;
            height: 36px;
        }

        .site-footer .footer-brand .brand-name {
            color: var(--white);
        }

        .site-footer .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            max-width: 280px;
            line-height: 1.7;
        }

        .site-footer .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 16px;
        }

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

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

        .site-footer ul a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: color .2s ease, padding-left .2s ease;
        }

        .site-footer ul a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .site-footer .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 10px;
        }

        .site-footer .footer-contact li i {
            color: var(--primary);
            width: 16px;
            text-align: center;
        }

        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 20px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.3);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            font-size: 15px;
            transition: all .2s ease;
        }

        .footer-social a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: var(--white);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 40px;
            padding-top: 20px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom span {
            margin: 0 6px;
        }

        /* ========== 视频模态框 ========== */
        .modal-content {
            background: var(--secondary);
            border-radius: 20px;
            border: none;
            overflow: hidden;
        }

        .modal-body {
            padding: 0;
            position: relative;
            aspect-ratio: 16 / 9;
        }

        .modal-body .video-placeholder {
            width: 100%;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--secondary);
        }

        .modal-body .video-placeholder i {
            font-size: 64px;
            color: var(--primary);
            opacity: 0.6;
        }

        .modal-body .video-placeholder span {
            position: absolute;
            bottom: 16px;
            left: 0;
            right: 0;
            text-align: center;
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
        }

        .modal-close-btn {
            position: absolute;
            top: 12px;
            right: 12px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.4);
            border: none;
            color: var(--white);
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            z-index: 2;
            transition: background .2s ease;
        }

        .modal-close-btn:hover {
            background: var(--primary);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 991px) {
            .sidebar {
                transform: translateX(-100%);
                box-shadow: 0 0 40px rgba(0, 0, 0, 0.2);
            }

            .sidebar.open {
                transform: translateX(0);
                width: 260px;
                max-width: 85vw;
            }

            .sidebar-close {
                display: flex;
            }

            .mobile-header {
                display: flex;
            }

            .main-wrapper {
                margin-left: 0;
                width: 100%;
                padding-top: 64px;
            }

            .hero {
                min-height: 70vh;
            }

            .hero-content {
                padding: 40px 0;
            }

            .plans-sticky {
                position: static;
                margin-bottom: 24px;
            }

            .contact-card {
                padding: 28px;
            }

            .case-body {
                padding: 24px;
            }
        }

        @media (max-width: 767px) {
            .hero-actions {
                gap: 12px;
            }

            .btn {
                padding: 0 20px;
            }

            .hero-stats {
                gap: 24px;
            }

            .category-entry,
            .resource-list,
            .cases-section,
            .news-section,
            .plans-section,
            .faq-section,
            .download-section,
            .contact-section {
                padding: 56px 0;
            }

            .plan-card {
                padding: 24px;
                gap: 16px;
                flex-direction: column;
            }

            .plan-num {
                font-size: 36px;
                width: auto;
            }

            .contact-card {
                padding: 20px;
                border-radius: 16px;
            }

            .contact-form .btn-primary-custom {
                width: 100%;
            }

            .case-cover img {
                min-height: 180px;
            }

            .recommend-card img {
                width: 60px;
                height: 60px;
            }
        }

/* roulang page: category1 */
/* ========== :root 设计变量 ========== */
        :root {
            --primary: #E07830;
            --primary-dark: #b95e20;
            --primary-light: rgba(224, 120, 48, 0.12);
            --primary-glow: rgba(224, 120, 48, 0.15);
            --secondary: #33261E;
            --bg: #F6F0E6;
            --white: #FFFFFF;
            --mint: #7FB89A;
            --text: #33261E;
            --text-light: #6f5e52;
            --text-muted: #8d7d72;
            --border: rgba(60, 40, 20, 0.08);
            --shadow-sm: 0 6px 20px rgba(120, 70, 35, 0.08);
            --shadow-md: 0 12px 30px rgba(120, 70, 35, 0.14);
            --radius-card: 16px;
            --radius-btn: 100px;
            --radius-badge: 6px;
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        /* ========== Reset / Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--text);
            text-decoration: none;
            transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== 侧边导航 ========== */
        .sidebar {
            width: 220px;
            height: 100vh;
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            background: var(--bg);
            border-right: 1px solid var(--border);
            z-index: 1030;
            display: flex;
            flex-direction: column;
            padding: 16px 12px;
        }
        .sidebar .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px 24px;
            margin-bottom: 12px;
            border-bottom: 1px solid var(--border);
        }
        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }
        .brand-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .side-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex: 1;
        }
        .side-nav .nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            height: 48px;
            padding: 0 16px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: background 0.2s ease, color 0.2s ease;
        }
        .side-nav .nav-link i {
            width: 18px;
            text-align: center;
            font-size: 16px;
            color: var(--text-muted);
            transition: color 0.2s ease;
        }
        .side-nav .nav-link:hover {
            background: rgba(224, 120, 48, 0.10);
            color: var(--primary);
        }
        .side-nav .nav-link:hover i {
            color: var(--primary);
        }
        .side-nav .nav-link.active {
            background: rgba(224, 120, 48, 0.10);
            color: var(--primary);
            font-weight: 600;
            border-left: 4px solid var(--primary);
            padding-left: 12px;
        }
        .side-nav .nav-link.active i {
            color: var(--primary);
        }
        .side-nav .nav-link:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ========== 移动端顶部栏 ========== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: var(--white);
            border-bottom: 1px solid var(--border);
            z-index: 1040;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
        }
        .mobile-header .brand {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-header .brand-name {
            font-size: 18px;
        }
        .menu-toggle {
            width: 40px;
            height: 40px;
            border: none;
            background: transparent;
            color: var(--text);
            font-size: 22px;
            cursor: pointer;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .menu-toggle:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .menu-toggle:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* 移动端抽屉 */
        .drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(51, 38, 30, 0.5);
            z-index: 1041;
        }
        .drawer-overlay.show {
            display: block;
        }
        .drawer-menu {
            position: fixed;
            top: 0;
            left: -280px;
            width: 280px;
            height: 100vh;
            background: var(--bg);
            z-index: 1042;
            padding: 20px;
            transition: left 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .drawer-menu.show {
            left: 0;
        }
        .drawer-close {
            align-self: flex-end;
            width: 34px;
            height: 34px;
            border: none;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 8px;
            font-size: 16px;
            cursor: pointer;
            margin-bottom: 12px;
        }
        .drawer-menu .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 0;
            margin-bottom: 12px;
            border-bottom: 1px solid var(--border);
        }

        /* ========== 主内容布局 ========== */
        .main-wrapper {
            margin-left: 220px;
            width: calc(100% - 220px);
            min-height: 100vh;
        }
        main {
            overflow: hidden;
        }

        /* ========== 通用区块 ========== */
        .section-padding {
            padding: 90px 0;
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 700;
            letter-spacing: 0.01em;
            margin-bottom: 10px;
        }
        .section-header p {
            color: var(--text-light);
            max-width: 680px;
            font-size: 16px;
        }
        .wave-divider {
            height: 60px;
            background: var(--secondary);
            position: relative;
            margin-top: -1px;
        }
        .wave-divider svg {
            display: block;
            width: 100%;
            height: 100%;
        }
        .wave-divider.light {
            background: var(--bg);
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            background: var(--secondary);
            min-height: 80vh;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            background-image: url('/assets/images/backpic/back-1.jpg');
            opacity: 0.55;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(51, 38, 30, 0.88) 0%, rgba(51, 38, 30, 0.65) 50%, rgba(51, 38, 30, 0.35) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 60px 0;
        }
        .hero-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            padding: 6px 18px;
            border-radius: 100px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 20px;
            border: 1px solid rgba(224, 120, 48, 0.25);
        }
        .hero h1 {
            color: var(--white);
            font-size: clamp(32px, 5vw, 46px);
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }
        .hero-subtitle {
            color: rgba(255, 255, 255, 0.88);
            font-size: 17px;
            max-width: 540px;
            margin-bottom: 32px;
        }
        .hero-cta {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 28px;
            background: var(--primary);
            color: var(--white) !important;
            border-radius: var(--radius-btn);
            font-weight: 500;
            border: 1px solid var(--primary);
            transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
        }
        .btn-primary-custom:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(224, 120, 48, 0.25);
        }
        .btn-primary-custom:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 28px;
            background: transparent;
            color: var(--white) !important;
            border-radius: var(--radius-btn);
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.6);
            transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
        }
        .btn-outline-custom:hover {
            background: rgba(224, 120, 48, 0.15);
            border-color: var(--primary);
            color: var(--primary) !important;
            transform: translateY(-2px);
        }
        .btn-outline-custom:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .hero-visual {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 30px 0;
        }
        .hero-visual-main {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            max-width: 480px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
        }
        .hero-visual-main img {
            width: 100%;
            height: auto;
            object-fit: cover;
            min-height: 340px;
        }
        .hero-float-card {
            position: absolute;
            bottom: 24px;
            left: -32px;
            background: var(--white);
            border-radius: 12px;
            padding: 14px 20px;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .hero-float-card .float-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .hero-float-card .float-label {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.4;
        }

        /* ========== 服务区块 ========== */
        .services-section {
            background: var(--bg);
            position: relative;
        }
        .service-card {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            height: 100%;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: 1px solid var(--border);
        }
        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .service-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 18px;
            transition: background 0.3s ease;
        }
        .service-card:hover .service-icon {
            background: rgba(224, 120, 48, 0.20);
        }
        .service-card h3 {
            font-size: 19px;
            font-weight: 600;
            margin-bottom: 10px;
            letter-spacing: 0.01em;
        }
        .service-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .service-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .service-link:hover {
            text-decoration: underline;
        }
        .service-link i {
            font-size: 12px;
            transition: transform 0.2s ease;
        }
        .service-link:hover i {
            transform: translateX(4px);
        }

        /* ========== 优势数据区块 ========== */
        .stats-section {
            background: var(--secondary);
            position: relative;
            color: var(--white);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            padding: 70px 0 80px;
        }
        .stat-item {
            text-align: center;
        }
        .stat-num {
            font-size: 48px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 4px;
        }
        .stat-note {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.5;
        }

        /* ========== 案例区块 ========== */
        .cases-section {
            background: var(--bg);
        }
        .case-card {
            background: var(--white);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            margin-bottom: 24px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .case-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .case-card .row {
            margin: 0;
        }
        .case-card .col-lg-6 {
            padding: 0;
        }
        .case-img-wrap {
            position: relative;
            overflow: hidden;
            min-height: 260px;
            height: 100%;
        }
        .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
            position: absolute;
            inset: 0;
        }
        .case-card:hover .case-img-wrap img {
            transform: scale(1.03);
        }
        .case-img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(51, 38, 30, 0.10) 0%, transparent 60%);
        }
        .case-content {
            padding: 28px 30px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            height: 100%;
        }
        .case-badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 14px;
            width: fit-content;
        }
        .case-badge.mint {
            background: rgba(127, 184, 154, 0.20);
            color: #3a7a5e;
        }
        .case-badge.orange {
            background: var(--primary-light);
            color: var(--primary);
        }
        .case-content h3 {
            font-size: 21px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .case-content p {
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .case-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .case-tags .tag {
            background: rgba(60, 40, 20, 0.05);
            color: var(--text-light);
            border-radius: 100px;
            padding: 4px 14px;
            font-size: 13px;
            font-weight: 500;
        }

        /* ========== 方案区块 ========== */
        .plans-section {
            background: var(--white);
        }
        .plans-left {
            position: sticky;
            top: 30px;
        }
        .plans-left h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 700;
            margin-bottom: 14px;
        }
        .plans-left p {
            color: var(--text-light);
            margin-bottom: 18px;
            font-size: 15px;
        }
        .plans-arrow-link {
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .plans-arrow-link:hover {
            text-decoration: underline;
        }
        .plan-card {
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 28px;
            margin-bottom: 24px;
            background: var(--white);
            box-shadow: var(--shadow-sm);
            transition: border-color 0.2s ease, box-shadow 0.3s ease, transform 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        .plan-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--primary);
            opacity: 0;
            transition: opacity 0.2s ease, width 0.3s ease;
        }
        .plan-card:hover {
            border-color: rgba(224, 120, 48, 0.30);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .plan-card:hover::before {
            opacity: 1;
        }
        .plan-num {
            font-size: 48px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 10px;
        }
        .plan-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .plan-audience {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .plan-features {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .plan-features li {
            font-size: 14px;
            color: var(--text-light);
            display: flex;
            align-items: baseline;
            gap: 8px;
            list-style: none;
        }
        .plan-features li::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
            transform: translateY(-2px);
        }

        /* ========== FAQ 区块 ========== */
        .faq-section {
            background: var(--bg);
        }
        .faq-accordion {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: rgba(255, 255, 255, 0.7);
            border: 1px solid var(--border);
            border-radius: 12px;
            margin-bottom: 14px;
            transition: background 0.3s ease, border-color 0.3s ease;
        }
        .faq-item.open {
            background: var(--white);
            border-color: var(--primary);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 22px;
            cursor: pointer;
            min-height: 56px;
            font-size: 16px;
            font-weight: 500;
        }
        .faq-question .faq-icon {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            transition: transform 0.3s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 18px;
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.8;
            margin: 0;
        }
        .faq-footer-link {
            text-align: center;
            margin-top: 24px;
        }
        .faq-footer-link a {
            color: var(--primary);
            font-weight: 500;
            font-size: 14px;
        }

        /* ========== 联系区块 ========== */
        .contact-section {
            background: var(--white);
        }
        .contact-card {
            background: var(--bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            overflow: hidden;
        }
        .contact-info {
            padding: 40px;
        }
        .contact-info h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            margin-bottom: 12px;
        }
        .contact-info p.desc {
            color: var(--text-light);
            margin-bottom: 24px;
            font-size: 15px;
        }
        .contact-item {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
            font-size: 15px;
        }
        .contact-item i {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }
        .contact-deco {
            margin-top: 24px;
            border-radius: 12px;
            overflow: hidden;
            max-height: 180px;
        }
        .contact-deco img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .contact-form-wrap {
            padding: 40px;
            background: var(--white);
        }
        .contact-form-wrap .form-label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            margin-bottom: 6px;
        }
        .contact-form-wrap .form-control,
        .contact-form-wrap .form-select {
            height: 48px;
            border-radius: 12px;
            border: 1px solid var(--border);
            padding: 0 16px;
            background: var(--white);
            font-size: 15px;
            color: var(--text);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .contact-form-wrap .form-control:focus,
        .contact-form-wrap .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(224, 120, 48, 0.15);
        }
        .contact-form-wrap textarea.form-control {
            height: auto;
            padding: 12px 16px;
            resize: vertical;
        }
        .btn-submit {
            width: 100%;
            height: 48px;
            background: var(--primary);
            color: var(--white);
            border: none;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 500;
            cursor: pointer;
            transition: background 0.2s ease, transform 0.2s ease;
        }
        .btn-submit:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-submit:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .form-privacy {
            font-size: 13px;
            color: var(--text-muted);
            text-align: center;
            margin-top: 10px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--secondary);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 0;
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .site-footer .brand-name {
            color: var(--white);
            font-size: 20px;
        }
        .site-footer .footer-brand .brand-icon {
            background: var(--primary);
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 16px;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
        }
        .footer-social a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: var(--white);
        }
        .footer-title {
            color: var(--white);
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color 0.2s ease;
        }
        .site-footer ul li a:hover {
            color: var(--primary);
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
        }
        .footer-contact i {
            color: var(--primary);
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 18px 0 24px;
            margin-top: 40px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 991px) {
            .sidebar {
                display: none;
            }
            .mobile-header {
                display: flex;
            }
            .main-wrapper {
                margin-left: 0;
                width: 100%;
                padding-top: 64px;
            }
            .section-padding {
                padding: 56px 0;
            }
            .hero {
                min-height: auto;
                padding: 40px 0;
            }
            .hero-content {
                padding: 20px 0 50px;
            }
            .hero-visual-main {
                max-width: 100%;
            }
            .hero-float-card {
                left: 20px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
                padding: 50px 0 60px;
            }
            .plans-left {
                position: static;
                margin-bottom: 30px;
            }
            .contact-info,
            .contact-form-wrap {
                padding: 28px;
            }
            .contact-deco {
                max-height: 140px;
            }
        }
        @media (max-width: 767px) {
            .section-header {
                margin-bottom: 30px;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-cta .btn-primary-custom,
            .hero-cta .btn-outline-custom {
                width: 100%;
            }
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .stat-num {
                font-size: 40px;
            }
            .case-content {
                padding: 22px;
            }
            .case-img-wrap {
                min-height: 200px;
            }
            .case-img-wrap img {
                position: relative;
            }
            .case-card .row > div {
                display: block !important;
            }
            .plan-card {
                padding: 20px;
            }
            .plan-num {
                font-size: 38px;
            }
            .faq-question {
                font-size: 15px;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .contact-info,
            .contact-form-wrap {
                padding: 20px;
            }
            .site-footer {
                padding: 40px 0 0;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}