/* roulang page: index */
/* ===================== 设计变量 ===================== */
        :root {
            --primary: #0F766E;
            --primary-dark: #115E59;
            --primary-light: #CCFBF1;
            --accent: #D97706;
            --accent-dark: #B45309;
            --bg: #F8FAFA;
            --text: #1E293B;
            --text-secondary: #64748B;
            --text-muted: #94A3B8;
            --border: #E2E8F0;
            --success: #059669;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 12px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 4px 8px rgba(0, 0, 0, 0.06), 0 12px 24px rgba(0, 0, 0, 0.09);
            --transition: 0.2s ease;
            --font-cn: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, sans-serif;
            --font-en: "Inter", "Helvetica Neue", Arial, sans-serif;
        }

        /* ===================== Reset & Base ===================== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-cn);
            font-size: 1rem;
            line-height: 1.75;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        img {
            max-width: 100%;
            height: auto;
            object-fit: cover;
        }

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

        .container {
            max-width: 1200px;
        }

        .section-padding {
            padding: 80px 0;
        }

        .section-title {
            font-size: clamp(1.5rem, 2.8vw, 2.125rem);
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 0.5rem;
            color: var(--text);
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 2.5rem;
            line-height: 1.75;
        }

        .section-divider {
            width: 48px;
            height: 4px;
            background: var(--primary);
            border-radius: 2px;
            margin-bottom: 1.25rem;
        }

        /* ===================== 导航 ===================== */
        .main-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            min-height: 72px;
            padding: 0;
            z-index: 1050;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
        }

        .main-header .navbar-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0;
        }

        .main-header .navbar-brand i {
            font-size: 1.4rem;
            color: var(--primary);
        }

        .main-header .navbar-brand:hover {
            color: var(--primary-dark);
        }

        .main-header .navbar-nav .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text);
            padding: 0.5rem 1rem;
            position: relative;
            transition: color var(--transition);
        }

        .main-header .navbar-nav .nav-link::after {
            content: '';
            position: absolute;
            left: 50%;
            bottom: 2px;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
            transition: width 0.25s ease;
        }

        .main-header .navbar-nav .nav-link:hover {
            color: var(--primary);
        }

        .main-header .navbar-nav .nav-link:hover::after {
            width: 70%;
        }

        .main-header .navbar-nav .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .main-header .navbar-nav .nav-link.active::after {
            width: 70%;
        }

        @media (min-width: 992px) {
            .main-header .navbar-brand-center {
                position: absolute;
                left: 50%;
                transform: translateX(-50%);
                z-index: 2;
                white-space: nowrap;
            }
            .main-header .left-nav {
                padding-right: 140px;
                margin-right: auto;
            }
            .main-header .right-nav {
                padding-left: 140px;
                margin-left: auto;
            }
        }

        @media (max-width: 991.98px) {
            .main-header {
                min-height: 64px;
                padding: 0.5rem 0;
            }
            .main-header .container {
                display: flex;
                align-items: center;
                justify-content: space-between;
            }
            .main-header .navbar-collapse {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
                padding: 0.75rem 1rem;
                z-index: 1040;
            }
            .main-header .navbar-nav .nav-link {
                padding: 0.625rem 0.5rem;
                border-bottom: 1px solid #f1f5f9;
            }
            .main-header .navbar-nav .nav-link:last-child {
                border-bottom: none;
            }
            .main-header .navbar-nav .nav-link::after {
                display: none;
            }
        }

        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0.375rem 0.625rem;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.15);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(15,118,110,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===================== Hero ===================== */
        .hero-section {
            position: relative;
            padding: 90px 0 70px;
            background: linear-gradient(180deg, #f0fdfa 0%, var(--bg) 100%);
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image:
                linear-gradient(rgba(15, 118, 110, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(15, 118, 110, 0.04) 1px, transparent 1px);
            background-size: 32px 32px;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 50%;
            height: 100%;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.08;
            pointer-events: none;
            z-index: 0;
        }

        .hero-section .container {
            position: relative;
            z-index: 1;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(15, 118, 110, 0.08);
            color: var(--primary);
            font-size: 0.875rem;
            font-weight: 500;
            border-radius: var(--radius-pill);
            padding: 0.375rem 0.875rem;
            margin-bottom: 1.25rem;
        }

        .hero-badge i {
            font-size: 1rem;
        }

        .hero-title {
            font-size: clamp(1.875rem, 4vw, 2.75rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 1.25rem;
        }

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

        .hero-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 2rem;
            max-width: 560px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 0.875rem;
        }

        .btn-accent {
            background: var(--accent);
            border: 1px solid var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            padding: 0.75rem 1.75rem;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(217, 119, 6, 0.3);
        }

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

        .btn-outline {
            background: transparent;
            border: 1px solid var(--primary);
            color: var(--primary);
            border-radius: var(--radius-sm);
            padding: 0.75rem 1.75rem;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }

        /* Hero 右侧面板 */
        .hero-panel {
            position: relative;
            min-height: 400px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .panel-card {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 1.25rem 1.5rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            position: absolute;
            width: 300px;
            max-width: 90%;
            border: 1px solid rgba(226, 232, 240, 0.7);
            transition: all var(--transition);
        }

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

        .panel-card .panel-icon {
            width: 46px;
            height: 46px;
            border-radius: var(--radius-sm);
            background: rgba(15, 118, 110, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            color: var(--primary);
            flex-shrink: 0;
        }

        .panel-card strong {
            display: block;
            font-size: 0.95rem;
            color: var(--text);
            margin-bottom: 0.125rem;
        }

        .panel-card span {
            font-size: 0.8125rem;
            color: var(--text-secondary);
        }

        .pc-1 {
            top: 5%;
            right: 5%;
            z-index: 3;
        }

        .pc-2 {
            bottom: 20%;
            left: 0;
            z-index: 2;
        }

        .pc-3 {
            bottom: 0;
            right: 10%;
            z-index: 1;
        }

        @media (max-width: 991.98px) {
            .hero-section {
                padding: 60px 0 50px;
            }
            .hero-panel {
                display: none;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn-accent,
            .hero-actions .btn-outline {
                justify-content: center;
            }
        }

        /* ===================== 快捷通道 ===================== */
        .entry-section {
            padding: 80px 0;
            background: #fff;
        }

        .entry-grid .entry-card {
            margin-bottom: 1.5rem;
        }

        .entry-card-inner {
            background: #fff;
            border: 1px solid var(--border);
            border-top: 3px dashed var(--primary-light);
            border-radius: var(--radius);
            padding: 1.5rem;
            height: 100%;
            transition: all var(--transition);
            position: relative;
            box-shadow: var(--shadow);
        }

        .entry-card-inner::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--primary);
            border-radius: var(--radius) 0 0 var(--radius);
            opacity: 0;
            transition: opacity var(--transition);
        }

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

        .entry-card-inner:hover::before {
            opacity: 1;
        }

        .entry-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.375rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }

        .entry-card-inner h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.5rem;
        }

        .entry-card-inner p {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 1rem;
        }

        .entry-link {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
        }

        .entry-link i {
            transition: transform var(--transition);
        }

        .entry-link:hover i {
            transform: translateX(4px);
        }

        .entry-card.featured .entry-card-inner {
            background: linear-gradient(135deg, #f0fdfa 0%, #fff 60%);
            border-top-color: var(--primary);
        }

        .entry-card.featured .entry-card-inner h3 {
            font-size: 1.3rem;
        }

        .entry-card.featured .entry-card-inner p {
            font-size: 0.9375rem;
        }

        /* ===================== 服务方案 ===================== */
        .service-section {
            padding: 80px 0;
            background: var(--bg);
        }

        .service-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            border-left: 4px solid var(--primary);
            padding: 1.75rem 1.5rem;
            box-shadow: var(--shadow);
            height: 100%;
            position: relative;
            transition: all var(--transition);
        }

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

        .service-num {
            position: absolute;
            top: 1rem;
            right: 1.25rem;
            font-family: var(--font-en);
            font-size: 2rem;
            font-weight: 700;
            color: #E2E8F0;
            line-height: 1;
        }

        .service-card .badge {
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.35rem 0.75rem;
            border-radius: 4px;
            margin-bottom: 1rem;
        }

        .service-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.625rem;
        }

        .service-card p {
            font-size: 0.9375rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 1rem;
        }

        .service-card hr {
            margin: 1rem 0;
            border-color: var(--border);
        }

        .service-card .service-link {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
        }

        .service-card .service-link i {
            transition: transform var(--transition);
        }

        .service-card .service-link:hover i {
            transform: translateX(4px);
        }

        @media (min-width: 992px) {
            .service-card.offset-card {
                margin-top: 24px;
            }
        }

        /* ===================== 数据指标 ===================== */
        .stats-section {
            padding: 60px 0;
            background: var(--primary-light);
        }

        .stats-section .section-title {
            margin-bottom: 2rem;
        }

        .stats-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
        }

        .stat-item {
            text-align: center;
            padding: 1.5rem 1rem;
            flex: 1 1 200px;
            max-width: 220px;
            position: relative;
        }

        .stat-item::after {
            content: '';
            position: absolute;
            right: 0;
            top: 20%;
            height: 60%;
            width: 1px;
            background: rgba(15, 118, 110, 0.15);
        }

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

        .stat-number {
            font-family: var(--font-en);
            font-size: clamp(1.5rem, 3vw, 2.25rem);
            font-weight: 700;
            color: var(--accent);
            font-feature-settings: "tnum";
            line-height: 1.2;
            margin-bottom: 0.25rem;
        }

        .stat-label {
            font-size: 0.9375rem;
            color: var(--text);
            font-weight: 500;
        }

        .stat-divider {
            width: 24px;
            height: 2px;
            background: var(--primary);
            margin: 0.5rem auto;
            border-radius: 1px;
        }

        .stat-note {
            font-size: 0.8125rem;
            color: var(--text-secondary);
            margin-top: 1rem;
        }

        @media (max-width: 768px) {
            .stats-grid {
                justify-content: center;
                gap: 1rem;
            }
            .stat-item {
                flex: 1 1 45%;
                max-width: 45%;
            }
            .stat-item::after {
                display: none;
            }
        }

        /* ===================== 资讯动态 ===================== */
        .news-section {
            padding: 80px 0;
            background: #fff;
        }

        .news-list {
            display: flex;
            flex-direction: column;
        }

        .news-item {
            display: flex;
            gap: 1.25rem;
            padding: 1.5rem 0;
            border-bottom: 1px solid var(--border);
            transition: background var(--transition);
        }

        .news-item:first-child {
            padding-top: 0;
        }

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

        .news-thumb {
            width: 140px;
            height: 90px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-content {
            flex: 1;
        }

        .news-content h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.375rem;
            line-height: 1.5;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .news-content h3 a {
            color: var(--text);
        }

        .news-content h3 a:hover {
            color: var(--primary);
        }

        .news-excerpt {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0.5rem;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.8125rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .news-meta .badge {
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 500;
            border-radius: 4px;
            padding: 0.25rem 0.5rem;
        }

        .news-meta .read-more {
            color: var(--primary);
            font-weight: 500;
            margin-left: auto;
            font-size: 0.8125rem;
        }

        .news-meta .read-more:hover {
            color: var(--primary-dark);
        }

        .empty-state {
            border: 2px dashed var(--border);
            border-radius: var(--radius);
            padding: 3rem 2rem;
            text-align: center;
            color: var(--text-muted);
        }

        .empty-state i {
            font-size: 2.5rem;
            display: block;
            margin-bottom: 0.75rem;
            color: var(--border);
        }

        .empty-state p {
            font-size: 0.9375rem;
            margin-bottom: 0;
        }

        /* 侧栏 */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .side-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.5rem;
            box-shadow: var(--shadow);
        }

        .side-card h4 {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 1rem;
            padding-bottom: 0.625rem;
            border-bottom: 2px solid var(--primary-light);
            position: relative;
        }

        .side-card h4::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 32px;
            height: 2px;
            background: var(--primary);
        }

        .side-card .input-group {
            border-radius: var(--radius-sm);
        }

        .side-card .form-control {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm) 0 0 var(--radius-sm);
            padding: 0.625rem 0.875rem;
            font-size: 0.875rem;
        }

        .side-card .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.15);
        }

        .side-card .btn-search {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            padding: 0 0.875rem;
        }

        .side-card .btn-search:hover {
            background: var(--primary-dark);
        }

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

        .side-card ul li {
            padding: 0.5rem 0;
            border-bottom: 1px solid #f1f5f9;
        }

        .side-card ul li:last-child {
            border-bottom: none;
        }

        .side-card ul li a {
            color: var(--text-secondary);
            font-size: 0.9375rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: all var(--transition);
        }

        .side-card ul li a i {
            font-size: 0.875rem;
            color: var(--primary);
        }

        .side-card ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .hot-list li a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .hot-list li a::before {
            content: '';
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
        }

        /* ===================== FAQ ===================== */
        .faq-section {
            padding: 80px 0;
            background: var(--bg);
        }

        .accordion-item {
            border: 1px solid var(--border);
            border-radius: 10px !important;
            margin-bottom: 0.875rem;
            overflow: hidden;
        }

        .accordion-button {
            background: #fff;
            color: var(--text);
            font-weight: 500;
            font-size: 1rem;
            padding: 1.125rem 1.375rem;
            border: none;
            box-shadow: none;
            transition: color var(--transition);
        }

        .accordion-button:not(.collapsed) {
            background: #fff;
            color: var(--primary);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.15);
        }

        .accordion-button::after {
            content: '+';
            background-image: none;
            font-size: 1.5rem;
            font-weight: 400;
            color: var(--primary);
            width: auto;
            height: auto;
            transition: transform 0.3s ease;
            font-family: var(--font-en);
            line-height: 1;
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
            color: var(--primary);
        }

        .accordion-body {
            background: var(--bg);
            color: var(--text-secondary);
            font-size: 0.9375rem;
            line-height: 1.75;
            padding: 1.125rem 1.375rem;
        }

        /* ===================== CTA 表单区 ===================== */
        .cta-section {
            padding: 80px 0;
            background: #fff;
        }

        .cta-card {
            background: #fff;
            border-radius: 16px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-hover);
            padding: 2.5rem;
            background: linear-gradient(135deg, #f0fdfa 0%, #fff 50%);
        }

        .cta-card .cta-left {
            padding-right: 2rem;
        }

        .cta-card h2 {
            font-size: clamp(1.375rem, 2.5vw, 1.875rem);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.75rem;
        }

        .cta-card .cta-left p {
            color: var(--text-secondary);
            font-size: 0.9375rem;
            line-height: 1.75;
            margin-bottom: 1.5rem;
        }

        .contact-info p {
            display: flex;
            align-items: center;
            gap: 0.625rem;
            font-size: 0.9375rem;
            color: var(--text);
            margin-bottom: 0.625rem;
        }

        .contact-info p i {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9375rem;
        }

        .cta-card .form-control,
        .cta-card .form-select {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0.6875rem 0.9375rem;
            font-size: 0.9375rem;
            color: var(--text);
        }

        .cta-card .form-control:focus,
        .cta-card .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.15);
        }

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

        .btn-submit {
            background: var(--primary);
            border: none;
            color: #fff;
            border-radius: var(--radius-sm);
            padding: 0.75rem 2rem;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            width: 100%;
        }

        .btn-submit:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(15, 118, 110, 0.3);
        }

        .privacy-note {
            text-align: center;
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 1.25rem;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.375rem;
        }

        .privacy-note i {
            color: var(--success);
        }

        @media (max-width: 991.98px) {
            .cta-card {
                padding: 1.75rem;
            }
            .cta-card .cta-left {
                padding-right: 0;
                margin-bottom: 1.75rem;
            }
            .cta-card form .btn-submit {
                width: 100%;
            }
        }

        /* ===================== 页脚 ===================== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.85);
            padding: 60px 0 0;
        }

        .site-footer .footer-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.875rem;
        }

        .site-footer .footer-logo i {
            color: var(--primary-light);
        }

        .site-footer p {
            font-size: 0.875rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 0.875rem;
        }

        .site-footer .footer-contact {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 0.5rem;
        }

        .site-footer .footer-contact i {
            color: var(--primary-light);
        }

        .site-footer h5 {
            font-size: 0.9375rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 1rem;
            text-transform: none;
        }

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

        .site-footer ul li {
            margin-bottom: 0.5rem;
        }

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.875rem;
            transition: all var(--transition);
        }

        .site-footer ul li a:hover {
            color: #fff;
            text-decoration: underline;
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 1.25rem 0;
            margin-top: 40px;
            text-align: center;
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ===================== 悬浮按钮 + Modal ===================== */
        .floating-btn {
            position: fixed;
            bottom: 24px;
            left: 24px;
            z-index: 1020;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-pill);
            padding: 0.625rem 1.375rem;
            font-size: 0.9375rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            box-shadow: 0 4px 16px rgba(15, 118, 110, 0.35);
            transition: all var(--transition);
        }

        .floating-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(15, 118, 110, 0.4);
        }

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

        .modal-content {
            border: none;
            border-radius: var(--radius);
            box-shadow: var(--shadow-hover);
        }

        .modal-header {
            border-bottom: 1px solid var(--border);
            padding: 1.125rem 1.5rem;
        }

        .modal-title {
            font-weight: 600;
            color: var(--text);
        }

        .modal-body {
            padding: 1.5rem;
        }

        .modal-body .form-control {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0.625rem 0.875rem;
            font-size: 0.9375rem;
        }

        .modal-body .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.15);
        }

        .modal-body .btn-primary {
            background: var(--primary);
            border: none;
            border-radius: var(--radius-sm);
            padding: 0.75rem 1.5rem;
            font-weight: 600;
        }

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

        .btn-close:focus {
            box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.15);
        }

        /* ===================== 响应式 ===================== */
        @media (max-width: 575.98px) {
            .section-padding {
                padding: 48px 0;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero-section {
                padding: 48px 0 40px;
            }
            .hero-title {
                font-size: 1.75rem;
            }
            .entry-section,
            .service-section,
            .news-section,
            .faq-section,
            .cta-section {
                padding: 48px 0;
            }
            .entry-card-inner {
                padding: 1.25rem;
            }
            .stats-section {
                padding: 40px 0;
            }
            .stat-item {
                flex: 1 1 100%;
                max-width: 100%;
            }
            .news-item {
                flex-direction: column;
            }
            .news-thumb {
                width: 100%;
                height: 140px;
            }
            .cta-card {
                padding: 1.25rem;
            }
            .pc-1,
            .pc-2,
            .pc-3 {
                position: static;
                margin-bottom: 1rem;
            }
            .hero-panel {
                display: none;
            }
        }

        @media (min-width: 576px) and (max-width: 991.98px) {
            .hero-panel {
                display: none;
            }
            .news-thumb {
                width: 120px;
                height: 80px;
            }
        }

        /* ===================== 通用 ===================== */
        .focus-visible:focus-visible {
            outline: 3px solid rgba(15, 118, 110, 0.25);
            outline-offset: 2px;
        }

        ::selection {
            background: rgba(15, 118, 110, 0.2);
            color: var(--primary-dark);
        }

/* roulang page: category1 */
:root {
            --primary: #0F766E;
            --primary-dark: #115E59;
            --primary-light: #CCFBF1;
            --accent: #D97706;
            --accent-dark: #B45309;
            --bg: #F8FAFA;
            --white: #FFFFFF;
            --text: #1E293B;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --success: #059669;
            --radius: 12px;
            --radius-btn: 8px;
            --shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 12px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 4px 8px rgba(0, 0, 0, 0.06), 0 12px 24px rgba(0, 0, 0, 0.09);
            --transition: 0.2s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, sans-serif;
            font-size: 1rem;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            object-fit: cover;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), box-shadow var(--transition), transform var(--transition), background-color var(--transition), border-color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }
        .container {
            max-width: 1200px;
        }

        /* buttons */
        .btn {
            border-radius: var(--radius-btn);
            font-weight: 600;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .4rem;
        }
        .btn:focus,
        .btn:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.25);
        }
        .btn-primary {
            background-color: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn-primary:active {
            transform: translateY(0);
            filter: brightness(.92);
        }
        .btn-accent {
            background-color: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background-color: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn-accent:active {
            transform: translateY(0);
            filter: brightness(.92);
        }
        .btn-outline-primary {
            background: transparent;
            border: 1px solid var(--primary);
            color: var(--primary);
        }
        .btn-outline-primary:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* badge */
        .badge-soft {
            background: var(--primary-light);
            color: var(--primary);
            font-size: .8125rem;
            font-weight: 600;
            padding: .25rem .65rem;
            border-radius: 999px;
            display: inline-block;
            line-height: 1.4;
        }
        .badge-gray {
            background: #F1F5F9;
            color: var(--text-muted);
            font-size: .8125rem;
            font-weight: 500;
            padding: .25rem .6rem;
            border-radius: 4px;
            display: inline-block;
        }

        /* header */
        .main-header {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            min-height: 72px;
            padding: 0;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.02);
        }
        .main-header .container {
            min-height: 72px;
        }
        .main-header .navbar-brand {
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: .45rem;
            padding: 0;
        }
        .main-header .navbar-brand i {
            font-size: 1.4rem;
        }
        .main-header .navbar-nav .nav-link {
            font-weight: 500;
            font-size: .95rem;
            color: var(--text);
            padding: .5rem 1rem;
            position: relative;
            transition: color var(--transition);
        }
        .main-header .navbar-nav .nav-link::after {
            content: "";
            position: absolute;
            left: 1rem;
            right: 1rem;
            bottom: 2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }
        .main-header .navbar-nav .nav-link:hover {
            color: var(--primary);
        }
        .main-header .navbar-nav .nav-link:hover::after {
            transform: scaleX(1);
        }
        .main-header .navbar-nav .nav-link.active {
            color: var(--primary);
        }
        .main-header .navbar-nav .nav-link.active::after {
            transform: scaleX(1);
        }
        @media (min-width: 992px) {
            .navbar-brand-center {
                position: absolute;
                left: 50%;
                transform: translateX(-50%);
                top: 50%;
                bottom: auto;
                margin-top: -1px;
            }
            .main-header .navbar-nav.left-nav {
                margin-right: auto;
                padding-left: 2rem;
            }
            .main-header .navbar-nav.right-nav {
                margin-left: auto;
                padding-right: 2rem;
            }
        }
        @media (max-width: 991.98px) {
            .main-header .container {
                flex-wrap: wrap;
            }
            .navbar-brand-center {
                position: static;
                transform: none;
            }
            .main-header .navbar-collapse {
                width: 100%;
                padding: .5rem 0 .75rem;
            }
            .main-header .navbar-nav .nav-link {
                padding: .55rem 0;
                border-bottom: 1px solid #F1F5F9;
            }
            .main-header .navbar-nav .nav-link::after {
                display: none;
            }
            .main-header .navbar-toggler {
                border: none;
                color: var(--primary);
            }
            .main-header .navbar-toggler:focus {
                box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.2);
            }
            .main-header .navbar-toggler-icon {
                background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(15,118,110,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
            }
        }

        /* page-hero */
        .page-hero {
            position: relative;
            padding: 72px 0 60px;
            background: linear-gradient(rgba(248, 250, 250, 0.92), rgba(248, 250, 250, 0.96)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            border-bottom: 1px solid var(--border);
        }
        .page-hero .breadcrumb-line {
            font-size: .8125rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: .35rem;
            flex-wrap: wrap;
        }
        .page-hero .breadcrumb-line a {
            color: var(--text-muted);
        }
        .page-hero .breadcrumb-line a:hover {
            color: var(--primary);
        }
        .page-hero .breadcrumb-line .current {
            color: var(--primary);
        }
        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            background: rgba(204, 251, 241, 0.7);
            border: 1px solid rgba(15, 118, 110, 0.15);
            color: var(--primary);
            font-size: .875rem;
            font-weight: 600;
            padding: .35rem .9rem;
            border-radius: 999px;
            margin-bottom: 1.25rem;
        }
        .page-hero h1 {
            font-size: clamp(1.875rem, 4vw, 2.75rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 1.15rem;
            letter-spacing: -0.01em;
        }
        .page-hero h1 .highlight {
            color: var(--primary);
        }
        .page-hero .lead-text {
            font-size: 1rem;
            color: #334155;
            max-width: 680px;
            margin-bottom: 1.75rem;
            line-height: 1.75;
        }
        .page-hero .hero-actions {
            display: flex;
            gap: .875rem;
            flex-wrap: wrap;
        }
        .page-hero .hero-actions .btn {
            min-height: 44px;
            padding: .65rem 1.5rem;
            font-size: .95rem;
        }
        .page-hero .hero-extra-row {
            margin-top: 2rem;
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .page-hero .hero-extra-item {
            display: flex;
            align-items: center;
            gap: .45rem;
            font-size: .875rem;
            color: var(--text-muted);
        }
        .page-hero .hero-extra-item i {
            color: var(--success);
            font-size: 1.05rem;
        }

        /* section spacing */
        .section-block {
            padding: 80px 0;
        }
        .section-block.bg-white {
            background: var(--white);
        }
        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 48px;
        }
        .section-head .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: .8125rem;
            font-weight: 600;
            padding: .3rem .85rem;
            border-radius: 999px;
            margin-bottom: .875rem;
            letter-spacing: .02em;
        }
        .section-head h2 {
            font-size: clamp(1.5rem, 2.8vw, 2.125rem);
            font-weight: 700;
            line-height: 1.35;
            color: var(--text);
            margin-bottom: .75rem;
        }
        .section-head p {
            color: var(--text-muted);
            font-size: .95rem;
            line-height: 1.75;
        }
        .section-title-left {
            margin-bottom: 40px;
        }
        .section-title-left .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: .8125rem;
            font-weight: 600;
            padding: .3rem .85rem;
            border-radius: 999px;
            margin-bottom: .75rem;
        }
        .section-title-left h2 {
            font-size: clamp(1.5rem, 2.8vw, 2.125rem);
            font-weight: 700;
            color: var(--text);
            margin-bottom: .5rem;
            line-height: 1.35;
        }
        .section-title-left p {
            color: var(--text-muted);
            font-size: .95rem;
            max-width: 640px;
        }

        /* intro block */
        .intro-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .intro-text p {
            color: #334155;
            line-height: 1.8;
            margin-bottom: 1rem;
        }
        .intro-text .intro-points {
            list-style: none;
            padding: 0;
            margin: 1.25rem 0 0;
            display: grid;
            gap: .65rem;
        }
        .intro-text .intro-points li {
            display: flex;
            align-items: flex-start;
            gap: .55rem;
            color: var(--text);
            font-size: .95rem;
        }
        .intro-text .intro-points li i {
            color: var(--success);
            font-size: 1.1rem;
            margin-top: .1rem;
            flex-shrink: 0;
        }
        .intro-visual {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            min-height: 280px;
        }
        .intro-visual img {
            width: 100%;
            height: 100%;
            min-height: 280px;
            object-fit: cover;
            display: block;
        }
        .intro-visual .visual-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 118, 110, 0.1), rgba(15, 118, 110, 0.25));
            display: flex;
            align-items: flex-end;
            padding: 1.5rem;
        }
        .intro-visual .visual-overlay span {
            background: rgba(255, 255, 255, 0.92);
            color: var(--primary-dark);
            font-weight: 600;
            font-size: .875rem;
            padding: .45rem 1rem;
            border-radius: 999px;
            box-shadow: var(--shadow);
        }
        @media (max-width: 768px) {
            .intro-content {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        /* topic cards */
        .topic-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition), box-shadow var(--transition);
            position: relative;
        }
        .topic-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }
        .topic-card .card-thumb {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #E8F5F4;
        }
        .topic-card .card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .topic-card:hover .card-thumb img {
            transform: scale(1.04);
        }
        .topic-card .card-thumb .card-badge {
            position: absolute;
            top: .85rem;
            left: .85rem;
            background: rgba(255, 255, 255, 0.94);
            color: var(--primary);
            font-size: .75rem;
            font-weight: 600;
            padding: .25rem .6rem;
            border-radius: 4px;
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
            backdrop-filter: blur(4px);
        }
        .topic-card .card-body {
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .topic-card .card-body h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: .55rem;
            line-height: 1.4;
        }
        .topic-card .card-body p {
            font-size: .875rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 1rem;
            flex: 1;
        }
        .topic-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: .35rem;
            font-size: .875rem;
            font-weight: 600;
            color: var(--primary);
            transition: gap var(--transition);
        }
        .topic-card .card-link:hover {
            gap: .6rem;
            color: var(--primary-dark);
        }

        /* process */
        .process-section {
            background: var(--white);
            border-bottom: 1px solid var(--border);
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
        }
        .process-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 24px;
            position: relative;
            text-align: center;
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .process-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .process-item .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 1.25rem;
        }
        .process-item .step-icon {
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: .5rem;
        }
        .process-item h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: .6rem;
        }
        .process-item p {
            font-size: .875rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }
        @media (max-width: 768px) {
            .process-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* stats */
        .stats-section {
            background: var(--primary-light);
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(255, 255, 255, 0.3), transparent);
            pointer-events: none;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            position: relative;
            z-index: 1;
        }
        .stat-item {
            text-align: center;
            padding: 40px 24px;
            border-right: 1px solid rgba(15, 118, 110, 0.18);
        }
        .stat-item:last-child {
            border-right: none;
        }
        .stat-item .stat-value {
            font-size: clamp(2rem, 4vw, 2.4rem);
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            font-feature-settings: "tnum";
            margin-bottom: .25rem;
        }
        .stat-item .stat-label {
            font-size: .9375rem;
            color: var(--primary-dark);
            font-weight: 500;
            margin-bottom: .65rem;
        }
        .stat-item .stat-divider {
            width: 40px;
            height: 1px;
            background: rgba(15, 118, 110, 0.35);
            margin: 0 auto .75rem;
        }
        .stat-item .stat-note {
            font-size: .8125rem;
            color: rgba(15, 118, 110, 0.75);
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stat-item:nth-child(2n) {
                border-right: none;
            }
            .stat-item:nth-child(-n+2) {
                border-bottom: 1px solid rgba(15, 118, 110, 0.18);
            }
        }
        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .stat-item {
                border-right: none;
                border-bottom: 1px solid rgba(15, 118, 110, 0.18);
            }
            .stat-item:last-child {
                border-bottom: none;
            }
        }

        /* faq */
        .faq-section {
            background: var(--bg);
        }
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }
        .accordion-item {
            border: 1px solid var(--border);
            border-radius: 10px !important;
            margin-bottom: 1rem;
            overflow: hidden;
            background: var(--white);
        }
        .accordion-button {
            background: var(--white);
            color: var(--text);
            font-weight: 600;
            font-size: .95rem;
            padding: 1.15rem 1.35rem;
            border: none;
            box-shadow: none;
            display: flex;
            align-items: center;
            gap: .75rem;
        }
        .accordion-button:not(.collapsed) {
            background: var(--white);
            color: var(--primary);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: none;
            border: none;
        }
        .accordion-button::after {
            background-image: none;
            font-family: "bootstrap-icons";
            content: "\f4fe";
            font-size: 1.1rem;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            transition: transform .2s ease;
        }
        .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
            background-image: none;
            color: var(--primary);
        }
        .accordion-body {
            padding: 0 1.35rem 1.25rem;
            font-size: .9rem;
            color: #334155;
            line-height: 1.75;
            background: #F8FAFA;
        }

        /* cta */
        .cta-banner {
            background: var(--primary-light);
            border: 1px solid rgba(15, 118, 110, 0.15);
            border-radius: 16px;
            padding: 40px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::after {
            content: "";
            position: absolute;
            right: -40px;
            top: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.4);
            pointer-events: none;
        }
        .cta-banner .cta-text h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: .35rem;
        }
        .cta-banner .cta-text p {
            font-size: .9375rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .cta-banner .btn {
            min-height: 44px;
            padding: .65rem 1.75rem;
            font-size: .95rem;
            position: relative;
            z-index: 1;
        }
        @media (max-width: 576px) {
            .cta-banner {
                padding: 28px 24px;
                flex-direction: column;
                text-align: center;
            }
        }

        /* footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.9);
            padding: 64px 0 0;
            font-size: .875rem;
            line-height: 1.7;
        }
        .site-footer .footer-logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: .5rem;
            margin-bottom: .75rem;
        }
        .site-footer .footer-logo i {
            font-size: 1.5rem;
        }
        .site-footer p {
            margin-bottom: .65rem;
            color: rgba(255, 255, 255, 0.75);
        }
        .site-footer .footer-contact {
            display: flex;
            align-items: center;
            gap: .5rem;
            margin-bottom: .45rem;
            color: rgba(255, 255, 255, 0.75);
            font-size: .875rem;
        }
        .site-footer .footer-contact i {
            color: #99F6E4;
            font-size: 1rem;
        }
        .site-footer h5 {
            font-size: .9375rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 1.1rem;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: .45rem;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.75);
            font-size: .875rem;
            transition: color var(--transition), padding-left var(--transition);
            display: inline-block;
        }
        .site-footer ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            margin-top: 40px;
            padding: 20px 0;
            text-align: center;
            font-size: .8125rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom p {
            margin: 0;
            color: rgba(255, 255, 255, 0.6);
        }
        @media (max-width: 767px) {
            .site-footer {
                padding-top: 48px;
            }
        }

        /* float button */
        .float-btn {
            position: fixed;
            left: 24px;
            bottom: 24px;
            z-index: 1050;
            display: inline-flex;
            align-items: center;
            gap: .45rem;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: 999px;
            padding: .7rem 1.4rem;
            font-size: .875rem;
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(217, 119, 6, 0.35);
            transition: all var(--transition);
            cursor: pointer;
        }
        .float-btn:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(217, 119, 6, 0.4);
        }
        .float-btn i {
            font-size: 1.1rem;
        }
        @media (max-width: 576px) {
            .float-btn {
                padding: .6rem 1.1rem;
                font-size: .8125rem;
                left: 16px;
                bottom: 16px;
            }
        }

        /* modal override */
        .modal-content {
            border-radius: 14px;
            border: none;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
        }
        .modal-header {
            border-bottom: 1px solid var(--border);
            padding: 1.25rem 1.5rem;
        }
        .modal-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text);
        }
        .modal-body {
            padding: 1.5rem;
        }
        .modal .btn-close:focus {
            box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.2);
        }
        .form-label {
            font-size: .875rem;
            font-weight: 500;
            color: var(--text);
            margin-bottom: .35rem;
        }
        .form-control {
            border-radius: var(--radius-btn);
            border: 1px solid var(--border);
            padding: .6rem .9rem;
            font-size: .9375rem;
            color: var(--text);
            background: var(--white);
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.2);
        }
        .form-control::placeholder {
            color: #94A3B8;
        }

        @media (max-width: 576px) {
            .section-block {
                padding: 48px 0;
            }
            .section-head {
                margin-bottom: 32px;
            }
            .page-hero {
                padding: 48px 0 40px;
            }
            .page-hero h1 {
                font-size: 1.75rem;
            }
            .page-hero .hero-actions .btn {
                min-height: 40px;
                padding: .55rem 1.2rem;
                font-size: .875rem;
            }
        }

/* roulang page: article */
:root {
            --primary: #0F766E;
            --primary-dark: #115E59;
            --primary-light: #CCFBF1;
            --accent: #D97706;
            --accent-dark: #B45309;
            --bg: #F8FAFA;
            --card: #FFFFFF;
            --text: #1E293B;
            --text-secondary: #64748B;
            --text-muted: #94A3B8;
            --border: #E2E8F0;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-tag: 999px;
            --shadow-card: 0 1px 3px rgba(0,0,0,0.06), 0 4px 12px rgba(0,0,0,0.04);
            --shadow-hover: 0 4px 8px rgba(0,0,0,0.06), 0 12px 24px rgba(0,0,0,0.09);
            --font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, sans-serif;
            --transition: 0.2s ease;
        }
        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-family);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 0.95rem;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; }
        .container { max-width: 1200px; }
        .btn { border-radius: var(--radius-btn); font-weight: 600; padding: 0.75rem 1.5rem; transition: all var(--transition); }
        .btn-primary {
            background: var(--primary);
            border: 1px solid var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(15, 118, 110, 0.25);
        }
        .btn-primary:active {
            transform: translateY(0);
            filter: brightness(0.92);
        }
        .btn-primary:focus-visible {
            box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.25);
            outline: none;
        }
        .btn-accent {
            background: var(--accent);
            border: 1px solid var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(217, 119, 6, 0.25);
        }
        .btn-accent:active { transform: translateY(0); filter: brightness(0.92); }
        .btn-accent:focus-visible {
            box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.25);
            outline: none;
        }
        .btn-outline-primary {
            border: 1.5px solid var(--primary);
            color: var(--primary);
            background: transparent;
        }
        .btn-outline-primary:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ========== Header / Nav ========== */
        .main-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            min-height: 72px;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
            z-index: 1030;
        }
        .main-header .navbar-brand {
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--primary);
            display: flex;
            align-items: center;
            white-space: nowrap;
        }
        .main-header .navbar-brand i {
            color: var(--accent);
            font-size: 1.6rem;
            margin-right: 6px;
        }
        .main-header .navbar-brand:hover { color: var(--primary); }
        @media (min-width: 992px) {
            .main-header .navbar-brand-center {
                position: absolute;
                left: 50%;
                top: 50%;
                transform: translate(-50%, -50%);
                z-index: 1;
            }
            .main-header .navbar-nav.left-nav {
                margin-right: auto;
                width: 42%;
                justify-content: flex-start;
            }
            .main-header .navbar-nav.right-nav {
                margin-left: auto;
                width: 42%;
                justify-content: flex-end;
            }
        }
        .main-header .nav-link {
            font-weight: 500;
            color: #334155;
            padding: 0.5rem 1rem;
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }
        .main-header .nav-link::after {
            content: '';
            position: absolute;
            left: 1rem;
            right: 100%;
            bottom: 2px;
            height: 2px;
            background: var(--primary);
            transition: right 0.25s ease;
        }
        .main-header .nav-link:hover {
            color: var(--primary);
        }
        .main-header .nav-link:hover::after {
            right: 1rem;
        }
        .main-header .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .main-header .nav-link.active::after {
            right: 1rem;
        }
        .main-header .navbar-toggler {
            border: none;
            padding: 0.4rem 0.6rem;
            color: var(--primary);
        }
        .main-header .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.15);
        }
        .main-header .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(15,118,110,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        @media (max-width: 991.98px) {
            .main-header .navbar-collapse {
                background: #fff;
                border-top: 1px solid var(--border);
                padding: 12px 0;
                margin-top: 8px;
            }
            .main-header .navbar-nav {
                padding: 0 16px;
            }
            .main-header .nav-link {
                padding: 0.65rem 0.75rem;
                border-radius: 8px;
            }
            .main-header .nav-link:hover {
                background: var(--primary-light);
            }
        }

        /* ========== Article Banner ========== */
        .article-banner {
            background: linear-gradient(135deg, rgba(15, 118, 110, 0.94), rgba(17, 94, 89, 0.82)), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            padding: 40px 0 28px;
            color: #fff;
            border-bottom: 4px solid var(--primary-light);
        }
        .article-breadcrumb {
            margin: 0;
        }
        .article-breadcrumb .breadcrumb {
            margin: 0;
            padding: 0;
            background: transparent;
        }
        .article-breadcrumb .breadcrumb-item {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.75);
        }
        .article-breadcrumb .breadcrumb-item a {
            color: rgba(255, 255, 255, 0.85);
            text-decoration: none;
            transition: color var(--transition);
        }
        .article-breadcrumb .breadcrumb-item a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .article-breadcrumb .breadcrumb-item.active {
            color: #fff;
        }
        .article-breadcrumb .breadcrumb-item + .breadcrumb-item::before {
            content: '/';
            color: rgba(255, 255, 255, 0.5);
        }

        /* ========== Article Main ========== */
        .article-main {
            padding: 48px 0 64px;
        }
        .article-card {
            background: var(--card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            padding: 36px 40px;
            transition: box-shadow var(--transition);
        }
        .article-card:hover {
            box-shadow: var(--shadow-hover);
        }
        .article-title {
            font-size: clamp(1.35rem, 2.6vw, 1.75rem);
            font-weight: 700;
            line-height: 1.4;
            color: var(--text);
            margin-bottom: 16px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            padding-bottom: 20px;
            margin-bottom: 24px;
            border-bottom: 1px solid var(--border);
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .article-meta i {
            color: var(--primary);
        }

        /* ========== Article Content ========== */
        .article-content {
            font-size: 0.95rem;
            line-height: 1.75;
            color: #334155;
        }
        .article-content p {
            margin-bottom: 1rem;
        }
        .article-content h2 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text);
            margin-top: 32px;
            margin-bottom: 14px;
            padding-left: 12px;
            border-left: 4px solid var(--primary);
        }
        .article-content h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text);
            margin-top: 24px;
            margin-bottom: 10px;
        }
        .article-content h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            margin-top: 20px;
            margin-bottom: 8px;
        }
        .article-content img {
            max-width: 100%;
            border-radius: 10px;
            margin: 16px 0;
            object-fit: cover;
        }
        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: color var(--transition);
        }
        .article-content a:hover {
            color: var(--primary-dark);
            text-decoration-color: var(--accent);
        }
        .article-content ul,
        .article-content ol {
            padding-left: 1.4rem;
            margin-bottom: 1rem;
        }
        .article-content li {
            margin-bottom: 6px;
        }
        .article-content blockquote {
            background: #F1F5F9;
            border-left: 4px solid var(--primary);
            padding: 16px 20px;
            border-radius: 0 10px 10px 0;
            margin: 20px 0;
            color: #475569;
            font-style: normal;
        }
        .article-content blockquote p:last-child {
            margin-bottom: 0;
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            font-size: 0.9rem;
        }
        .article-content table th {
            background: var(--primary-light);
            color: var(--primary-dark);
            font-weight: 600;
            padding: 10px 14px;
            text-align: left;
            border-bottom: 2px solid var(--border);
        }
        .article-content table td {
            padding: 10px 14px;
            border-bottom: 1px solid var(--border);
        }
        .article-content table tr:last-child td {
            border-bottom: none;
        }
        .article-content hr {
            border: 0;
            border-top: 1px solid var(--border);
            margin: 28px 0;
        }
        .article-content code {
            background: #F1F5F9;
            color: var(--primary-dark);
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 0.9em;
        }

        /* ========== Article Tags ========== */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid var(--border);
        }
        .article-tags .tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 0.8rem;
            font-weight: 500;
            padding: 4px 14px;
            border-radius: var(--radius-tag);
            transition: background var(--transition);
        }
        .article-tags .tag:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ========== Related Posts ========== */
        .related-posts {
            margin-top: 36px;
            padding-top: 28px;
            border-top: 1px solid var(--border);
        }
        .related-posts h2 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 20px;
        }
        .related-card {
            display: flex;
            gap: 14px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 12px;
            transition: box-shadow var(--transition), transform var(--transition);
            height: 100%;
            margin-bottom: 12px;
        }
        .related-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .related-card img {
            width: 96px;
            height: 72px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .related-card .related-info {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .related-card .related-info h3 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 4px;
            line-height: 1.4;
        }
        .related-card .related-info span {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* ========== Article Back ========== */
        .article-back {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 28px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--primary);
            transition: gap var(--transition);
        }
        .article-back:hover {
            gap: 10px;
            color: var(--primary-dark);
        }

        /* ========== Not Found ========== */
        .not-found {
            text-align: center;
            padding: 60px 24px;
        }
        .not-found i {
            font-size: 3.5rem;
            color: var(--text-muted);
            display: block;
            margin-bottom: 16px;
        }
        .not-found h2 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }
        .not-found p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        /* ========== Sidebar ========== */
        .article-sidebar {
            position: sticky;
            top: 90px;
        }
        .sidebar-card {
            background: var(--card);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 24px;
            margin-bottom: 24px;
            transition: box-shadow var(--transition);
        }
        .sidebar-card:hover {
            box-shadow: var(--shadow-hover);
        }
        .sidebar-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h4 i {
            color: var(--primary);
            font-size: 1.1rem;
        }
        .sidebar-search .form-control {
            border-radius: var(--radius-btn);
            border: 1px solid var(--border);
            padding: 10px 14px;
            font-size: 0.9rem;
            background: var(--bg);
            color: var(--text);
        }
        .sidebar-search .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.15);
            outline: none;
            background: #fff;
        }
        .sidebar-search .form-control::placeholder {
            color: var(--text-muted);
        }
        .sidebar-search .btn-search {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 0 16px;
            border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
            transition: background var(--transition);
        }
        .sidebar-search .btn-search:hover {
            background: var(--primary-dark);
        }
        .sidebar-category {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-category li {
            border-bottom: 1px solid var(--border);
        }
        .sidebar-category li:last-child {
            border-bottom: none;
        }
        .sidebar-category a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 4px;
            font-size: 0.9rem;
            font-weight: 500;
            color: #334155;
            transition: color var(--transition), padding-left var(--transition);
        }
        .sidebar-category a i {
            color: var(--primary);
            font-size: 1rem;
        }
        .sidebar-category a:hover {
            color: var(--primary);
            padding-left: 10px;
        }
        .sidebar-hot {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-hot li {
            padding: 10px 0;
            border-bottom: 1px dashed var(--border);
        }
        .sidebar-hot li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .sidebar-hot a {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 0.9rem;
            color: #334155;
            line-height: 1.5;
            transition: color var(--transition);
        }
        .sidebar-hot a i {
            color: var(--accent);
            font-size: 0.8rem;
            margin-top: 5px;
            flex-shrink: 0;
        }
        .sidebar-hot a:hover {
            color: var(--primary);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.85);
            padding: 56px 0 24px;
            font-size: 0.9rem;
        }
        .site-footer .footer-logo {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .site-footer .footer-logo i {
            color: var(--accent);
        }
        .site-footer p {
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 10px;
            line-height: 1.7;
        }
        .site-footer .footer-contact {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 8px;
        }
        .site-footer .footer-contact i {
            color: var(--accent);
        }
        .site-footer h5 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition), text-decoration-color var(--transition);
            text-decoration: none;
        }
        .site-footer ul a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            margin-top: 36px;
            padding-top: 20px;
            text-align: center;
        }
        .site-footer .footer-bottom p {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
            margin: 0;
        }

        /* ========== Responsive ========== */
        @media (max-width: 991.98px) {
            .article-sidebar {
                position: static;
                margin-top: 32px;
            }
            .article-card {
                padding: 28px 24px;
            }
        }
        @media (max-width: 767.98px) {
            .article-main {
                padding: 28px 0 40px;
            }
            .article-banner {
                padding: 28px 0 20px;
            }
            .article-card {
                padding: 22px 18px;
            }
            .article-meta {
                flex-direction: column;
                gap: 6px;
            }
            .related-card {
                padding: 10px;
            }
        }
        @media (max-width: 575.98px) {
            .article-card {
                padding: 20px 16px;
                border-radius: 10px;
            }
            .article-title {
                font-size: 1.25rem;
            }
            .article-content {
                font-size: 0.9rem;
            }
            .related-card img {
                width: 80px;
                height: 60px;
            }
            .article-main {
                padding: 20px 0 32px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #0F766E;
            --primary-dark: #115E59;
            --primary-light: #CCFBF1;
            --accent: #D97706;
            --accent-dark: #B45309;
            --bg: #F8FAFA;
            --card-bg: #FFFFFF;
            --text: #1E293B;
            --text-body: #334155;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --success: #059669;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 4px 12px rgba(0,0,0,0.04);
            --shadow-lg: 0 4px 8px rgba(0,0,0,0.06), 0 12px 24px rgba(0,0,0,0.09);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, sans-serif;
            --container-max: 1200px;
            --space-section: 80px;
            --space-section-mobile: 48px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-body);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            vertical-align: middle;
        }
        .container {
            max-width: var(--container-max);
        }
        .main-header {
            background: #ffffff;
            border-bottom: 1px solid var(--border);
            min-height: 72px;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
            z-index: 1040;
        }
        .main-header .navbar-brand-center {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .main-header .navbar-brand-center i {
            font-size: 1.5rem;
            color: var(--primary);
        }
        .main-header .navbar-brand-center:hover {
            color: var(--primary-dark);
        }
        .main-header .navbar-toggler {
            border-color: var(--border);
            color: var(--primary);
            padding: 6px 10px;
        }
        .main-header .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.2);
        }
        .main-header .navbar-nav {
            gap: 4px;
        }
        .main-header .navbar-nav .nav-link {
            color: var(--text);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.5rem 1rem;
            position: relative;
            transition: color .2s ease;
        }
        .main-header .navbar-nav .nav-link::after {
            content: "";
            position: absolute;
            left: 1rem;
            right: 1rem;
            bottom: 2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left center;
            transition: transform .25s ease;
        }
        .main-header .navbar-nav .nav-link:hover {
            color: var(--primary);
        }
        .main-header .navbar-nav .nav-link:hover::after {
            transform: scaleX(1);
        }
        .main-header .navbar-nav .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .main-header .navbar-nav .nav-link.active::after {
            transform: scaleX(1);
        }
        .main-header .left-nav {
            margin-right: auto;
        }
        .main-header .right-nav {
            margin-left: auto;
        }
        @media (max-width: 991.98px) {
            .main-header .navbar-brand-center {
                position: static;
                transform: none;
            }
            .main-header .navbar-nav {
                padding-top: 12px;
                gap: 0;
            }
            .main-header .navbar-nav .nav-link {
                padding: 0.75rem 1rem;
                border-bottom: 1px solid var(--border);
            }
            .main-header .navbar-nav .nav-link::after {
                display: none;
            }
            .main-header .left-nav {
                margin-right: 0;
            }
            .main-header .right-nav {
                margin-left: 0;
            }
        }
        @media (max-width: 575.98px) {
            .main-header .navbar-brand-center {
                font-size: 1.1rem;
            }
        }
        .btn {
            border-radius: var(--radius-sm);
            padding: 0.75rem 1.5rem;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all .2s ease;
            border: 2px solid transparent;
        }
        .btn:focus,
        .btn:focus-visible {
            box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.25);
            outline: none;
        }
        .btn-primary {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: translateY(0);
            filter: brightness(0.9);
        }
        .btn-accent {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-accent:active {
            transform: translateY(0);
            filter: brightness(0.9);
        }
        .btn-outline-primary {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-outline-primary:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline-primary:active {
            transform: translateY(0);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: clamp(1.5rem, 2.8vw, 2.125rem);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.35;
            position: relative;
        }
        .section-header p {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 620px;
            margin: 0 auto;
        }
        .section-header .header-line {
            width: 48px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin: 14px auto 0;
        }
        .category-hero {
            background: linear-gradient(135deg, var(--primary-light) 0%, #F0FDFA 50%, #FFFFFF 100%);
            padding: 80px 0 72px;
            position: relative;
            overflow: hidden;
        }
        .category-hero::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: linear-gradient(rgba(15, 118, 110, 0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(15, 118, 110, 0.06) 1px, transparent 1px);
            background-size: 48px 48px;
            pointer-events: none;
        }
        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(15, 118, 110, 0.1);
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 20px;
        }
        .category-hero h1 {
            font-size: clamp(1.875rem, 4vw, 2.75rem);
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .category-hero .hero-desc {
            font-size: 1.05rem;
            color: var(--text-body);
            max-width: 520px;
            margin-bottom: 28px;
        }
        .category-hero .hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .category-hero .hero-meta {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            font-size: 0.88rem;
            color: var(--text-muted);
        }
        .category-hero .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .category-hero .hero-meta i {
            color: var(--success);
        }
        .hero-card-stack {
            position: relative;
            display: flex;
            flex-direction: column;
            gap: 16px;
            padding: 12px 0;
        }
        .hero-card {
            background: #fff;
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            padding: 18px 20px;
            display: flex;
            align-items: center;
            gap: 14px;
            transition: transform .25s ease, box-shadow .25s ease;
        }
        .hero-card:nth-child(2) {
            margin-left: 32px;
        }
        .hero-card:nth-child(3) {
            margin-left: 16px;
        }
        .hero-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .hero-card>i:first-child {
            font-size: 1.4rem;
            color: var(--primary);
            background: rgba(15, 118, 110, 0.08);
            width: 46px;
            height: 46px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            flex-shrink: 0;
        }
        .hero-card h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 2px;
        }
        .hero-card p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin: 0;
        }
        .hero-card>i:last-child {
            margin-left: auto;
            color: var(--primary);
            font-size: 1.1rem;
        }
        @media (max-width: 991.98px) {
            .category-hero {
                padding: 48px 0 40px;
            }
            .hero-card-stack {
                margin-top: 32px;
            }
            .hero-card:nth-child(2) {
                margin-left: 0;
            }
            .hero-card:nth-child(3) {
                margin-left: 0;
            }
        }
        .service-cards-section {
            padding: var(--space-section) 0;
            background: var(--bg);
        }
        .service-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            height: 100%;
            transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
            display: flex;
            flex-direction: column;
        }
        .service-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: rgba(15, 118, 110, 0.3);
        }
        .service-card .card-image {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
            background: #FEF3C7;
        }
        .service-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .service-card:hover .card-image img {
            transform: scale(1.04);
        }
        .service-card .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .service-card .card-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 4px;
            margin-bottom: 12px;
            align-self: flex-start;
        }
        .service-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 10px;
        }
        .service-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            flex: 1;
            margin-bottom: 16px;
        }
        .service-card .card-link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap .2s ease;
        }
        .service-card .card-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }
        .card-image-overlay {
            position: absolute;
            bottom: 12px;
            left: 12px;
            background: rgba(17, 94, 89, 0.8);
            color: #fff;
            font-size: 0.75rem;
            padding: 4px 10px;
            border-radius: 999px;
        }
        .scenarios-section {
            padding: var(--space-section) 0;
            background: #fff;
        }
        .scenarios-section .scenario-image {
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            width: 100%;

            object-fit: cover;
        }
        .scenario-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .scenario-list li {
            display: flex;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border);
        }
        .scenario-list li:last-child {
            border-bottom: none;
        }
        .scenario-list li>i {
            font-size: 1.5rem;
            color: var(--primary);
            background: var(--primary-light);
            width: 44px;
            height: 44px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .scenario-list h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }
        .scenario-list p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
        }
        .process-section {
            padding: var(--space-section) 0;
            background: var(--bg);
        }
        .process-step {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 28px 24px;
            height: 100%;
            position: relative;
            box-shadow: var(--shadow-sm);
            transition: box-shadow .25s ease, transform .25s ease;
        }
        .process-step:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .process-step .step-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary-light);
            display: block;
            margin-bottom: 10px;
            line-height: 1;
            font-family: Inter, "Helvetica Neue", Arial, sans-serif;
            font-feature-settings: "tnum";
        }
        .process-step h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
        }
        .process-step::before {
            content: "";
            position: absolute;
            top: 28px;
            left: 0;
            width: 4px;
            height: 44px;
            background: var(--primary);
            border-radius: 0 4px 4px 0;
        }
        .stats-section {
            padding: 64px 0;
            background: var(--primary-light);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }
        .stat-item {
            text-align: center;
            padding: 20px 16px;
            border-right: 1px solid rgba(15, 118, 110, 0.2);
        }
        .stat-item:last-child {
            border-right: none;
        }
        .stat-number {
            font-size: clamp(2rem, 3vw, 2.5rem);
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            font-family: Inter, "Helvetica Neue", Arial, sans-serif;
            font-feature-settings: "tnum";
        }
        .stat-item p {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            margin: 8px 0 12px;
        }
        .stat-item .stat-line {
            width: 32px;
            height: 2px;
            background: rgba(15, 118, 110, 0.3);
            margin: 0 auto 10px;
            border-radius: 2px;
        }
        .stat-item span {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.5;
            display: block;
        }
        @media (max-width: 991.98px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .stat-item:nth-child(2) {
                border-right: none;
            }
            .stat-item:nth-child(3),
            .stat-item:nth-child(4) {
                border-top: 1px solid rgba(15, 118, 110, 0.15);
            }
        }
        @media (max-width: 575.98px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .stat-item {
                border-right: none;
                padding: 16px 0;
            }
        }
        .faq-section {
            padding: var(--space-section) 0;
            background: #fff;
        }
        .faq-section .accordion {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-section .accordion-item {
            border: 1px solid var(--border);
            border-radius: 10px !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: none;
            background: #fff;
        }
        .faq-section .accordion-button {
            background: #fff;
            color: var(--text);
            font-weight: 600;
            font-size: 1rem;
            padding: 18px 24px;
            border: none;
            box-shadow: none;
            transition: color .2s ease;
        }
        .faq-section .accordion-button:not(.collapsed) {
            background: var(--primary-light);
            color: var(--primary);
        }
        .faq-section .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.15);
            outline: none;
        }
        .faq-section .accordion-button::after {
            font-family: "bootstrap-icons";
            background-image: none;
            content: "\F4FE";
            color: var(--primary);
            font-size: 1rem;
            transition: transform .3s ease;
        }
        .faq-section .accordion-button:not(.collapsed)::after {
            background-image: none;
            transform: rotate(45deg);
        }
        .faq-section .accordion-body {
            background: var(--bg);
            color: var(--text-body);
            font-size: 0.94rem;
            padding: 20px 24px;
            border-top: 1px solid var(--border);
            line-height: 1.8;
        }
        .cta-section {
            padding: 48px 0 var(--space-section);
            background: var(--bg);
        }
        .cta-card {
            background: #fff;
            border-radius: 16px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            padding: 48px;
            overflow: hidden;
            position: relative;
        }
        .cta-card .cta-left {
            background: var(--primary-light);
            border-radius: 12px;
            padding: 36px;
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .cta-card .cta-left h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }
        .cta-card .cta-left p {
            color: var(--text-body);
            margin-bottom: 24px;
            font-size: 0.95rem;
        }
        .cta-card .contact-info {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
            font-size: 0.95rem;
            color: var(--text);
        }
        .cta-card .contact-info i {
            color: var(--primary);
            font-size: 1.1rem;
        }
        .support-form .form-control,
        .support-form .form-select {
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            padding: 12px 16px;
            font-size: 0.95rem;
            color: var(--text);
            background: #fff;
            transition: border-color .2s ease, box-shadow .2s ease;
        }
        .support-form .form-control::placeholder {
            color: #94A3B8;
        }
        .support-form .form-control:focus,
        .support-form .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.15);
            outline: none;
        }
        .support-form .form-select {
            cursor: pointer;
        }
        .privacy-note {
            background: var(--bg);
            padding-bottom: 40px;
            text-align: center;
        }
        .privacy-note p {
            font-size: 0.78rem;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin: 0;
        }
        .privacy-note i {
            color: var(--success);
            font-size: 1rem;
        }
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.85);
            padding: 56px 0 0;
            font-size: 0.9rem;
        }
        .site-footer .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 14px;
        }
        .site-footer .footer-logo i {
            font-size: 1.5rem;
            color: #5EEAD4;
        }
        .site-footer p {
            font-size: 0.88rem;
            line-height: 1.7;
            margin-bottom: 16px;
            color: rgba(255, 255, 255, 0.7);
        }
        .site-footer .footer-contact {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 8px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.75);
        }
        .site-footer .footer-contact i {
            color: #5EEAD4;
        }
        .site-footer h5 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }
        .site-footer h5::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 2px;
            background: #5EEAD4;
            border-radius: 2px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.88rem;
            transition: color .2s ease;
        }
        .site-footer ul a:hover {
            color: #fff;
            text-decoration: underline;
            text-underline-offset: 4px;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 32px;
            padding: 20px 0;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-bottom p {
            margin: 0;
            font-size: 0.82rem;
        }
        .floating-btn {
            position: fixed;
            bottom: 28px;
            left: 28px;
            z-index: 999;
            background: var(--accent);
            color: #fff;
            border-radius: 999px;
            padding: 14px 24px;
            font-weight: 600;
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 6px 18px rgba(217, 119, 6, 0.4);
            transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
            border: none;
            text-decoration: none;
        }
        .floating-btn:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 10px 24px rgba(217, 119, 6, 0.5);
        }
        .floating-btn i {
            font-size: 1.2rem;
        }
        @media (max-width: 575.98px) {
            .floating-btn {
                bottom: 20px;
                left: 20px;
                padding: 10px 18px;
                font-size: 0.85rem;
            }
        }
        .modal-content {
            border-radius: 16px;
            border: none;
            box-shadow: var(--shadow-lg);
        }
        .modal-header {
            border-bottom: 1px solid var(--border);
            padding: 20px 24px;
        }
        .modal-title {
            font-weight: 700;
            color: var(--text);
        }
        .modal-body {
            padding: 24px;
        }
        .modal .btn-close:focus {
            box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.2);
        }
        .modal .form-control {
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            padding: 12px 16px;
            font-size: 0.95rem;
        }
        .modal .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.15);
            outline: none;
        }
        .modal .form-control::placeholder {
            color: #94A3B8;
        }
        .modal .btn-primary {
            width: 100%;
        }
        @media (max-width: 767.98px) {
            :root {
                --space-section: 48px;
            }
            .cta-card {
                padding: 24px;
            }
            .cta-card .cta-left {
                padding: 24px;
                margin-bottom: 24px;
            }
            .service-card .card-body {
                padding: 20px;
            }
            .scenarios-section .scenario-image {
                margin-bottom: 24px;
            }
            .process-step {
                padding: 22px 18px;
            }
            .category-hero h1 {
                font-size: 1.75rem;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }
        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .category-hero {
                padding: 40px 0 36px;
            }
            .category-hero .hero-buttons {
                gap: 10px;
            }
            .category-hero .hero-buttons .btn {
                padding: 0.6rem 1.2rem;
                font-size: 0.9rem;
            }
            .hero-card-stack {
                gap: 12px;
            }
            .hero-card {
                padding: 14px 16px;
            }
            .cta-card {
                padding: 20px 16px;
            }
        }