/* roulang page: index */
:root {
            --primary: #1A56B0;
            --primary-hover: #13418A;
            --primary-light: #EEF2F8;
            --secondary: #3B82F6;
            --accent: #C9922A;
            --bg: #F7F9FC;
            --white: #FFFFFF;
            --title: #1E293B;
            --body: #475569;
            --muted: #94A3B8;
            --border: #E2E8F0;
            --dark: #0F172A;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 4px 20px rgba(30, 41, 59, 0.06);
            --shadow-hover: 0 8px 30px rgba(30, 41, 59, 0.12);
            --transition: 0.25s ease;
            --container: 1200px;
            --spacer: 96px;
            --spacer-mobile: 56px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
            color: var(--body);
            background-color: var(--bg);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

        .section {
            padding: var(--spacer) 0;
        }

        .section-header {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
        }

        .section-header .eyebrow {
            display: inline-block;
            background: rgba(26, 86, 176, 0.08);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .section-header h2 {
            font-size: 30px;
            line-height: 1.4;
            color: var(--title);
            font-weight: 700;
            margin-bottom: 12px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--body);
        }

        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            border: 1.5px solid transparent;
            cursor: pointer;
            transition: all var(--transition);
            outline: none;
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(26, 86, 176, 0.2);
        }

        .btn-primary:active {
            transform: translateY(0);
            filter: brightness(0.92);
        }

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

        .btn-outline:hover {
            background: rgba(26, 86, 176, 0.05);
            color: var(--primary-hover);
        }

        .btn-outline:active {
            background: rgba(26, 86, 176, 0.1);
        }

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

        .btn-white:hover {
            background: var(--primary-light);
            color: var(--primary);
            transform: translateY(-1px);
        }

        .btn-large {
            padding: 16px 36px;
            font-size: 16px;
        }

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

        /* 顶部导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--white);
            box-shadow: 0 1px 0 rgba(30, 41, 59, 0.06);
        }

        .header-brand-row {
            background: var(--white);
            border-bottom: 1px solid var(--border);
        }

        .header-brand-row .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

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

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            flex-shrink: 0;
        }

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .header-service {
            font-size: 14px;
            color: var(--muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .header-service svg {
            width: 16px;
            height: 16px;
            fill: var(--primary);
        }

        .btn-login {
            padding: 8px 20px;
            font-size: 14px;
            border-radius: 8px;
        }

        .btn-login-small {
            padding: 6px 16px;
            font-size: 13px;
            border-radius: 6px;
        }

        .header-nav-row {
            background: var(--primary-light);
            border-bottom: 1px solid var(--border);
        }

        .header-nav-row .container {
            display: flex;
            align-items: center;
            height: 52px;
        }

        .main-nav {
            display: flex;
            gap: 8px;
            flex: 1;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--title);
            background: transparent;
            border: 1px solid transparent;
            transition: all var(--transition);
        }

        .nav-link:hover {
            background: rgba(255, 255, 255, 0.7);
            color: var(--primary);
        }

        .nav-link.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }

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

        .nav-search {
            display: flex;
            align-items: center;
            background: var(--white);
            border-radius: 20px;
            padding: 4px 4px 4px 14px;
            border: 1px solid var(--border);
            height: 36px;
            max-width: 220px;
        }

        .nav-search input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 13px;
            color: var(--title);
            width: 100%;
            font-family: inherit;
        }

        .nav-search input::placeholder {
            color: var(--muted);
        }

        .nav-search button {
            background: var(--primary);
            border: none;
            border-radius: 50%;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            flex-shrink: 0;
        }

        .nav-search button svg {
            width: 14px;
            height: 14px;
            fill: #fff;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            margin-left: auto;
        }

        .nav-toggle span,
        .nav-toggle span::before,
        .nav-toggle span::after {
            content: "";
            display: block;
            width: 20px;
            height: 2px;
            background: var(--title);
            border-radius: 2px;
            position: relative;
            transition: all 0.3s;
        }

        .nav-toggle span::before {
            position: absolute;
            top: -6px;
        }

        .nav-toggle span::after {
            position: absolute;
            top: 6px;
        }

        .nav-toggle.open span {
            background: transparent;
        }

        .nav-toggle.open span::before {
            top: 0;
            transform: rotate(45deg);
        }

        .nav-toggle.open span::after {
            top: 0;
            transform: rotate(-45deg);
        }

        .mobile-drawer {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: var(--white);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 10px 20px rgba(30, 41, 59, 0.08);
            padding: 16px 0;
        }

        .mobile-drawer .container {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-drawer .nav-link {
            border-radius: 8px;
            display: block;
            padding: 12px 16px;
            font-size: 15px;
            border-left: 3px solid transparent;
        }

        .mobile-drawer .nav-link.active {
            background: rgba(26, 86, 176, 0.06);
            color: var(--primary);
            border-left-color: var(--primary);
            font-weight: 600;
        }

        .mobile-drawer.show {
            display: block;
        }

        /* Hero */
        .hero {
            background: linear-gradient(135deg, #F0F5FF 0%, #FFFFFF 60%, #F7F9FC 100%);
            padding: 80px 0 64px;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: 
                linear-gradient(rgba(26, 86, 176, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(26, 86, 176, 0.03) 1px, transparent 1px);
            background-size: 40px 40px;
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            display: grid;
            grid-template-columns: 1.05fr 0.95fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content {
            max-width: 560px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(26, 86, 176, 0.08);
            border: 1px solid rgba(26, 86, 176, 0.12);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: 20px;
            margin-bottom: 20px;
        }

        .hero-badge svg {
            width: 16px;
            height: 16px;
            fill: var(--primary);
        }

        .hero h1 {
            font-size: 42px;
            line-height: 1.3;
            color: var(--title);
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .hero h1 .highlight {
            color: var(--primary);
            position: relative;
        }

        .hero-desc {
            font-size: 16px;
            line-height: 1.9;
            color: var(--body);
            margin-bottom: 32px;
            max-width: 480px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-image {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
        }

        .hero-image img {
            width: 100%;
            height: 100%;
            min-height: 320px;
            object-fit: cover;
            border-radius: var(--radius);
        }

        .hero-quick-tags {
            margin-top: 48px;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
        }

        .quick-tag-label {
            font-size: 14px;
            color: var(--muted);
            font-weight: 600;
            margin-right: 6px;
        }

        .quick-tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 14px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 20px;
            font-size: 13px;
            color: var(--title);
            transition: all var(--transition);
        }

        .quick-tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* 价值主张 */
        .values-section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border);
        }

        .values-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 48px;
        }

        .value-item {
            text-align: left;
        }

        .value-icon {
            width: 52px;
            height: 52px;
            background: rgba(26, 86, 176, 0.08);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .value-icon svg {
            width: 26px;
            height: 26px;
            fill: var(--primary);
        }

        .value-item h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--title);
            margin-bottom: 10px;
        }

        .value-item p {
            font-size: 15px;
            color: var(--body);
            line-height: 1.8;
        }

        /* 功能分组 */
        .features-section {
            padding: var(--spacer) 0;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .feature-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 32px;
            box-shadow: var(--shadow);
            border: 1px solid rgba(226, 232, 240, 0.6);
            transition: transform var(--transition), box-shadow var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .feature-icon {
            width: 48px;
            height: 48px;
            background: rgba(26, 86, 176, 0.08);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .feature-icon svg {
            width: 24px;
            height: 24px;
            fill: var(--primary);
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--title);
            margin-bottom: 8px;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--body);
            line-height: 1.8;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 20px;
        }

        .feature-card .cover-wrap {
            margin-top: auto;
            border-radius: 12px;
            overflow: hidden;
        }

        .feature-card .cover-wrap img {
            width: 100%;
            height: 140px;
            object-fit: cover;
            border-radius: 12px;
            transition: transform 0.4s;
        }

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

        /* 资讯列表 */
        .news-section {
            background: var(--primary-light);
        }

        .news-section .section-header h2 {
            color: var(--title);
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-card {
            display: flex;
            align-items: center;
            gap: 24px;
            background: var(--white);
            border-radius: 14px;
            padding: 16px;
            box-shadow: 0 2px 8px rgba(30, 41, 59, 0.04);
            border: 1px solid rgba(226, 232, 240, 0.5);
            transition: all var(--transition);
        }

        .news-card:hover {
            background: #F8FAFC;
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }

        .news-thumb {
            width: 120px;
            height: 80px;
            border-radius: 10px;
            overflow: hidden;
            flex-shrink: 0;
        }

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

        .news-body {
            flex: 1;
            min-width: 0;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 6px;
        }

        .news-tag {
            display: inline-flex;
            align-items: center;
            background: rgba(26, 86, 176, 0.08);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 12px;
        }

        .news-date {
            font-size: 13px;
            color: var(--muted);
        }

        .news-tag-r {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(192, 146, 42, 0.1);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 12px;
        }

        .news-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--title);
            margin-bottom: 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

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

        .news-excerpt {
            font-size: 14px;
            color: var(--body);
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-empty {
            text-align: center;
            padding: 60px 20px;
            background: rgba(255, 255, 255, 0.6);
            border-radius: 14px;
            border: 1px dashed var(--border);
            min-height: 200px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .news-empty svg {
            width: 48px;
            height: 48px;
            fill: var(--muted);
            margin-bottom: 16px;
        }

        .news-empty p {
            color: var(--muted);
            font-size: 15px;
        }

        /* 场景 */
        .scenario-section {
            padding: var(--spacer) 0;
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }

        .scenario-grid.reverse .scenario-image {
            order: 2;
        }

        .scenario-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }

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

        .scenario-content h3 {
            font-size: 24px;
            font-weight: 600;
            color: var(--title);
            margin-bottom: 16px;
        }

        .scenario-content p {
            font-size: 15px;
            color: var(--body);
            margin-bottom: 20px;
        }

        .scenario-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .scenario-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
            color: var(--title);
        }

        .scenario-list li::before {
            content: "";
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            background: rgba(26, 86, 176, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%231A56B0' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E");
            background-size: 10px;
            background-position: center;
            background-repeat: no-repeat;
            margin-top: 4px;
        }

        /* 案例 */
        .cases-section {
            background: var(--primary-light);
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .case-card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }

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

        .case-card .case-cover {
            height: 180px;
            overflow: hidden;
        }

        .case-card .case-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s;
        }

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

        .case-body {
            padding: 24px;
        }

        .case-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--title);
            margin-bottom: 8px;
        }

        .case-body .case-label {
            font-size: 13px;
            color: var(--muted);
            margin-bottom: 16px;
        }

        .case-stats {
            display: flex;
            align-items: baseline;
            gap: 6px;
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }

        .case-stat-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
        }

        .case-stat-desc {
            font-size: 13px;
            color: var(--muted);
        }

        /* 价格 */
        .pricing-section {
            padding: var(--spacer) 0;
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            align-items: stretch;
            max-width: 960px;
            margin: 0 auto;
        }

        .pricing-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 32px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            display: flex;
            flex-direction: column;
            transition: all var(--transition);
        }

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

        .pricing-card.recommended {
            border: 2px solid var(--primary);
            position: relative;
            background: var(--primary-light);
            box-shadow: 0 8px 30px rgba(26, 86, 176, 0.12);
        }

        .recommend-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 20px;
            white-space: nowrap;
        }

        .pricing-name {
            font-size: 18px;
            font-weight: 600;
            color: var(--title);
            margin-bottom: 8px;
        }

        .pricing-desc {
            font-size: 14px;
            color: var(--body);
            margin-bottom: 20px;
        }

        .pricing-amount {
            font-size: 15px;
            color: var(--muted);
            margin-bottom: 20px;
            display: flex;
            align-items: baseline;
            gap: 4px;
        }

        .pricing-amount span {
            font-size: 36px;
            font-weight: 700;
            color: var(--title);
        }

        .pricing-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-bottom: 28px;
            flex: 1;
        }

        .pricing-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--body);
        }

        .pricing-list li::before {
            content: "";
            flex-shrink: 0;
            width: 18px;
            height: 18px;
            background: rgba(26, 86, 176, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%231A56B0' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E");
            background-size: 10px;
            background-position: center;
            background-repeat: no-repeat;
            margin-top: 4px;
        }

        .pricing-card .btn {
            width: 100%;
        }

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

        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 8px;
            cursor: pointer;
            transition: color var(--transition);
            font-size: 16px;
            color: var(--title);
            font-weight: 500;
        }

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

        .faq-icon {
            position: relative;
            width: 20px;
            height: 20px;
            flex-shrink: 0;
        }

        .faq-icon::before,
        .faq-icon::after {
            content: "";
            position: absolute;
            background: var(--primary);
            border-radius: 2px;
            transition: transform 0.3s;
        }

        .faq-icon::before {
            width: 16px;
            height: 2px;
            top: 9px;
            left: 2px;
        }

        .faq-icon::after {
            width: 2px;
            height: 16px;
            top: 2px;
            left: 9px;
        }

        .faq-item.open .faq-icon::after {
            transform: scaleY(0);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 8px;
            font-size: 15px;
            color: var(--body);
            line-height: 1.9;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding-bottom: 20px;
            padding-top: 4px;
        }

        /* CTA */
        .cta-section {
            padding: 80px 0;
            background: var(--primary);
        }

        .cta-wrap {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-wrap h2 {
            font-size: 32px;
            color: #fff;
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .cta-wrap p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .cta-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            justify-content: center;
        }

        /* 页脚 */
        .site-footer {
            background: var(--dark);
            color: #CBD5E1;
        }

        .footer-main {
            padding: 64px 0 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 48px;
        }

        .footer-brand .logo {
            margin-bottom: 16px;
        }

        .footer-brand .logo-text {
            color: #fff;
        }

        .footer-brand-desc {
            font-size: 14px;
            line-height: 1.8;
            color: #94A3B8;
            max-width: 280px;
        }

        .footer-col-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: #94A3B8;
            font-size: 14px;
            transition: color var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-meta {
            font-size: 14px;
            line-height: 2;
            color: #94A3B8;
        }

        .footer-meta a {
            color: #94A3B8;
        }

        .footer-meta a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
        }

        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 14px;
            color: #94A3B8;
        }

        .footer-bottom a {
            color: #94A3B8;
        }

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

        /* 响应式 */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .pricing-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .hero .container {
                grid-template-columns: 1fr;
            }

            .hero-image {
                order: -1;
                max-height: 300px;
                overflow: hidden;
            }

            .hero-image img {
                min-height: 240px;
            }

            .nav-search {
                display: none;
            }

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

            .scenario-grid.reverse .scenario-image {
                order: 0;
            }

            .header-service {
                display: none;
            }
        }

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

            .section-header {
                margin-bottom: 32px;
            }

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

            .hero {
                padding: 48px 0 40px;
            }

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

            .hero-desc {
                font-size: 15px;
            }

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

            .features-grid {
                grid-template-columns: 1fr;
            }

            .cases-grid {
                grid-template-columns: 1fr;
            }

            .pricing-grid {
                grid-template-columns: 1fr;
            }

            .pricing-card.recommended {
                order: -1;
            }

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

            .footer-main {
                padding: 40px 0 32px;
            }

            .header-nav-row .container {
                height: auto;
                padding: 8px 16px;
                justify-content: flex-end;
            }

            .main-nav {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .mobile-drawer {
                position: fixed;
                top: 116px;
                left: 0;
                right: 0;
                background: var(--white);
                border-bottom: 1px solid var(--border);
                box-shadow: 0 10px 20px rgba(30, 41, 59, 0.08);
                z-index: 99;
            }

            .news-card {
                flex-direction: column;
                gap: 12px;
            }

            .news-thumb {
                width: 100%;
                height: 120px;
            }

            .news-title {
                white-space: normal;
            }

            .cta-wrap h2 {
                font-size: 26px;
            }

            .btn-large {
                padding: 14px 28px;
                font-size: 15px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .header-brand-row .container {
                height: 56px;
            }

            .logo-text {
                font-size: 17px;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 16px;
            }

            .btn-login {
                padding: 6px 14px;
                font-size: 13px;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .scenario-image img {
                min-height: 200px;
            }

            .footer-bottom .container {
                flex-direction: column;
                text-align: center;
            }
        }

        .back-to-top {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 44px;
            height: 44px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 20px rgba(26, 86, 176, 0.3);
            opacity: 0;
            visibility: hidden;
            transition: all var(--transition);
            z-index: 99;
        }

        .back-to-top.show {
            opacity: 1;
            visibility: visible;
        }

        .back-to-top:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
        }

        .back-to-top svg {
            width: 20px;
            height: 20px;
            fill: #fff;
        }

/* roulang page: category1 */
:root {
  --primary: #1A56B0;
  --primary-dark: #13418A;
  --secondary: #3B82F6;
  --accent: #C9922A;
  --bg: #F7F9FC;
  --white: #FFFFFF;
  --text: #1E293B;
  --text-body: #475569;
  --text-muted: #94A3B8;
  --border: #E2E8F0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 20px rgba(30, 41, 59, 0.06);
  --shadow-hover: 0 8px 30px rgba(30, 41, 59, 0.12);
  --transition: 0.25s ease;
  --container: 1200px;
  --section-space: 96px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  background: var(--bg);
  color: var(--text-body);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color 0.2s ease; }
h1, h2, h3, h4, h5, p, ul, li { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  padding: 14px 28px;
  font-weight: 600;
  font-size: 16px;
  line-height: 1.5;
  border: 1.5px solid transparent;
  transition: all 0.25s ease;
  text-align: center;
  white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(26,86,176,0.22); }
.btn-primary:active { transform: translateY(0); filter: brightness(0.95); }
.btn-outline { background: #fff; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: rgba(26,86,176,0.05); color: var(--primary-dark); transform: translateY(-1px); }
.btn-outline:active { transform: translateY(0); }
.btn-light { background: #fff; color: var(--primary); border-color: transparent; }
.btn-light:hover { background: #EAF1FB; color: var(--primary-dark); transform: translateY(-1px); }
.btn:focus-visible { outline: 2px solid var(--secondary); outline-offset: 2px; }
.btn-sm { padding: 8px 18px; font-size: 14px; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  box-shadow: 0 1px 4px rgba(30,41,59,0.04);
}
.header-top { background: #fff; }
.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  flex-shrink: 0;
}
.logo-text {
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.5px;
  line-height: 1.3;
}
.header-actions { display: flex; align-items: center; gap: 16px; }
.header-hotline { font-size: 14px; color: var(--text-muted); letter-spacing: 0.3px; }
.header-bottom {
  background: #EEF2F8;
  position: relative;
}
.header-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 54px;
  gap: 16px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-body);
  background: #fff;
  border: 1px solid transparent;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.nav-link:hover { color: var(--primary); background: #fff; }
.nav-link.active { background: var(--primary); color: #fff; }
.nav-toogle { display: none; }
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
}
.nav-toggle:hover { background: var(--primary-dark); }
.nav-toggle:focus-visible { outline: 2px solid var(--secondary); outline-offset: 2px; }
.site-header.scrolled .header-top-inner { height: 56px; transition: height 0.25s ease; }
.site-header.scrolled .header-hotline { display: none; }
.site-header.scrolled .header-bottom { box-shadow: 0 4px 12px rgba(30,41,59,0.06); }
.page-hero {
  padding: 60px 0 56px;
  background: linear-gradient(135deg, #F0F5FF, #FFFFFF);
  border-bottom: 1px solid var(--border);
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
  gap: 4px;
}
.breadcrumb a { color: var(--primary); }
.breadcrumb a:hover { color: var(--primary-dark); }
.breadcrumb .sep { margin: 0 6px; color: var(--text-muted); }
.page-hero h1 {
  font-size: 42px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
}
.page-hero .lead {
  font-size: 16px;
  color: var(--text-body);
  max-width: 640px;
  line-height: 1.8;
}
.split-section { padding: var(--section-space) 0; }
.split-section + .split-section { border-top: 1px solid var(--border); }
.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.split-reverse .split-media { order: 2; }
.split-media img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  background: var(--border);
}
.split-content .kicker {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 12px;
  background: rgba(201, 146, 42, 0.08);
  padding: 4px 12px;
  border-radius: 20px;
}
.split-content h2 {
  font-size: 30px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
}
.split-content > p {
  font-size: 16px;
  color: var(--text-body);
  margin-bottom: 22px;
}
.check-list li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 12px;
  font-size: 15px;
  line-height: 1.7;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: rgba(26, 86, 176, 0.12);
}
.check-list li::after {
  content: "✓";
  position: absolute;
  left: 3px;
  top: 4px;
  font-size: 11px;
  color: var(--primary);
  font-weight: 700;
}
.step-list li {
  position: relative;
  padding-left: 44px;
  margin-bottom: 16px;
  font-size: 15px;
  line-height: 1.7;
}
.step-num {
  position: absolute;
  left: 0;
  top: 1px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.service-section {
  padding: var(--section-space) 0;
  background: #fff;
  border-top: 1px solid var(--border);
}
.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}
.section-head .kicker {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 12px;
  background: rgba(201,146,42,0.08);
  padding: 4px 12px;
  border-radius: 20px;
}
.section-head h2 {
  font-size: 30px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}
.section-head p {
  font-size: 16px;
  color: var(--text-body);
}
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all var(--transition);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  background: #fff;
  border-color: transparent;
}
.service-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(26, 86, 176, 0.1);
  color: var(--primary);
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.service-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.service-card p {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.7;
}
.note-section { padding: var(--section-space) 0; }
.note-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  align-items: center;
}
.note-box .kicker {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 12px;
  background: rgba(201,146,42,0.08);
  padding: 4px 12px;
  border-radius: 20px;
}
.note-box h2 {
  font-size: 30px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
}
.note-box p {
  font-size: 15px;
  color: var(--text-body);
  line-height: 1.8;
}
.note-features {
  display: grid;
  gap: 12px;
}
.note-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--text-body);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px;
}
.note-feature::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
}
.faq-section {
  padding: var(--section-space) 0;
  background: #fff;
  border-top: 1px solid var(--border);
}
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 22px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  transition: color 0.2s ease;
  border: none;
  background: none;
  text-align: left;
  width: 100%;
}
.faq-q:hover { color: var(--primary); }
.faq-q:focus-visible { outline: 2px solid var(--secondary); outline-offset: 2px; border-radius: 4px; }
.faq-toggle {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(26, 86, 176, 0.08);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  line-height: 1;
  transition: transform 0.3s ease;
}
.faq-item.active .faq-toggle { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.3s ease;
  padding: 0;
  color: var(--text-body);
  font-size: 15px;
  line-height: 1.8;
}
.faq-item.active .faq-a {
  max-height: 320px;
  padding: 0 0 22px;
}
.cta-section { padding: var(--section-space) 0; }
.cta-box {
  background: var(--primary);
  border-radius: 20px;
  padding: 64px 48px;
  text-align: center;
}
.cta-box h2 {
  color: #fff;
  font-size: 30px;
  line-height: 1.4;
  font-weight: 700;
  margin-bottom: 14px;
}
.cta-box p {
  color: rgba(255, 255, 255, 0.88);
  font-size: 16px;
  max-width: 560px;
  margin: 0 auto 28px;
  line-height: 1.7;
}
.site-footer {
  background: #0F172A;
  color: #CBD5E1;
}
.footer-main { padding: 64px 0 40px; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer-brand .logo-text { color: #fff; }
.footer-brand-desc {
  font-size: 14px;
  color: #94A3B8;
  margin-top: 16px;
  max-width: 280px;
  line-height: 1.8;
}
.footer-col-title {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
  line-height: 1.4;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 14px;
  color: #94A3B8;
  transition: color 0.2s ease;
}
.footer-links a:hover { color: #fff; }
.footer-meta p {
  font-size: 14px;
  color: #94A3B8;
  margin-bottom: 8px;
  line-height: 1.6;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom p {
  font-size: 14px;
  color: #64748B;
}
.footer-bottom a { color: #94A3B8; }
.footer-bottom a:hover { color: #fff; }
@media (max-width: 1024px) {
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .split-grid { gap: 40px; }
  .split-media img { height: 340px; }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
}
@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .header-hotline { display: none; }
  .header-top-inner { height: 60px; }
  .logo-text { font-size: 17px; }
  .logo-icon { width: 36px; height: 36px; font-size: 18px; }
  .header-bottom-inner { min-height: 52px; }
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    padding: 16px;
    display: none;
    box-shadow: var(--shadow);
    border-top: 1px solid var(--border);
    border-radius: 0 0 16px 16px;
  }
  .main-nav.open { display: flex; }
  .nav-link {
    justify-content: flex-start;
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 15px;
    background: transparent;
  }
  .nav-link:hover { background: var(--bg); }
  .nav-link.active {
    background: rgba(26, 86, 176, 0.06);
    color: var(--primary);
    border-left: 4px solid var(--primary);
    border-radius: 8px;
  }
  .nav-toggle { display: flex; }
  .page-hero h1 { font-size: 30px; }
  .page-hero .lead { font-size: 15px; }
  .split-section { padding: 56px 0; }
  .split-grid { grid-template-columns: 1fr; gap: 32px; }
  .split-reverse .split-media { order: 0; }
  .split-media img { height: 240px; }
  .split-content h2 { font-size: 24px; }
  .service-section { padding: 56px 0; }
  .service-grid { grid-template-columns: 1fr; }
  .section-head h2 { font-size: 24px; }
  .note-section { padding: 56px 0; }
  .note-box { grid-template-columns: 1fr; padding: 32px 24px; }
  .note-box h2 { font-size: 24px; }
  .faq-section { padding: 56px 0; }
  .cta-section { padding: 56px 0; }
  .cta-box { padding: 48px 24px; }
  .cta-box h2 { font-size: 24px; }
  .footer-main { padding: 48px 0 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-bottom .container { flex-direction: column; text-align: center; }
}
@media (max-width: 520px) {
  .btn { width: 100%; }
  .header-top-inner { height: 56px; }
  .service-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-box { padding: 40px 20px; }
  .note-box { padding: 28px 20px; }
  .page-hero h1 { font-size: 28px; }
  .split-media img { height: 200px; }
}

/* roulang page: article */
:root {
            --primary: #1A56B0;
            --primary-dark: #13418A;
            --primary-light: #3B82F6;
            --accent: #C9922A;
            --bg: #F7F9FC;
            --white: #FFFFFF;
            --text: #1E293B;
            --text-secondary: #475569;
            --text-muted: #94A3B8;
            --border: #E2E8F0;
            --channel-bg: #EEF2F8;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 4px 20px rgba(30, 41, 59, 0.06);
            --shadow-hover: 0 8px 30px rgba(30, 41, 59, 0.12);
            --transition: 0.25s ease;
            --font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        ul,
        ol {
            list-style-position: inside;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text);
            font-weight: 700;
            line-height: 1.4;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 40px;
        }
        .section-head h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text);
            position: relative;
            padding-left: 16px;
            line-height: 1.4;
        }
        .section-head h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 24px;
            background: var(--primary);
            border-radius: 4px;
        }
        .section-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: color 0.2s ease;
        }
        .section-more:hover {
            color: var(--primary-dark);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            border: 1.5px solid transparent;
            cursor: pointer;
            transition: all var(--transition);
            text-align: center;
            outline: none;
            white-space: nowrap;
        }
        .btn:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(26, 86, 176, 0.24);
        }
        .btn-primary:active {
            transform: translateY(0);
            filter: brightness(0.95);
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
        }
        .btn-light:hover {
            background: #EAF1FF;
            color: var(--primary-dark);
            border-color: #EAF1FF;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(255, 255, 255, 0.18);
        }
        .btn-light:active {
            transform: translateY(0);
            filter: brightness(0.97);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.8);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: #fff;
            transform: translateY(-1px);
        }
        .btn-outline-light:active {
            transform: translateY(0);
            background: rgba(255, 255, 255, 0.2);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
            border-radius: 8px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            transition: box-shadow 0.3s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 4px 12px rgba(30, 41, 59, 0.08);
        }
        .header-top {
            background: #fff;
            padding: 14px 0;
            transition: padding 0.3s ease;
        }
        .site-header.scrolled .header-top {
            padding: 8px 0;
        }
        .header-top .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            flex-shrink: 0;
            transition: width 0.3s ease, height 0.3s ease, font-size 0.3s ease;
        }
        .site-header.scrolled .logo-icon {
            width: 34px;
            height: 34px;
            font-size: 17px;
            border-radius: 8px;
        }
        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.5px;
            transition: font-size 0.3s ease;
            white-space: nowrap;
        }
        .site-header.scrolled .logo-text {
            font-size: 18px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .header-service {
            font-size: 14px;
            color: var(--text-muted);
            white-space: nowrap;
            transition: opacity 0.2s ease;
        }
        .site-header.scrolled .header-service {
            display: none;
        }
        .header-channel {
            background: var(--channel-bg);
            border-top: 1px solid var(--border);
        }
        .header-channel .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 50px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            text-decoration: none;
            transition: all 0.2s ease;
            border: 1px solid transparent;
            line-height: 1.6;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(26, 86, 176, 0.06);
        }
        .nav-link:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }
        .nav-link.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        .nav-link.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            background: rgba(26, 86, 176, 0.06);
            align-items: center;
            justify-content: center;
        }
        .nav-toggle:hover {
            background: rgba(26, 86, 176, 0.1);
        }
        .nav-toggle:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }
        .nav-toggle span {
            width: 22px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all 0.25s ease;
        }
        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .breadcrumb-bar {
            background: var(--channel-bg);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb-divider {
            color: var(--text-muted);
            user-select: none;
        }
        .breadcrumb-current {
            color: var(--text);
            font-weight: 500;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 320px;
        }

        .article-section {
            padding: 48px 0 80px;
            background: var(--bg);
        }
        .article-card {
            max-width: 860px;
            margin: 0 auto;
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            padding: 56px;
        }
        .article-header {
            margin-bottom: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid var(--border);
        }
        .article-category {
            display: inline-block;
            background: rgba(201, 146, 42, 0.12);
            color: #9A7420;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 18px;
            line-height: 1.6;
        }
        .article-header h1 {
            font-size: 36px;
            line-height: 1.4;
            margin-bottom: 16px;
            color: var(--text);
            font-weight: 700;
            word-break: break-word;
        }
        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 14px;
            color: var(--text-muted);
        }
        .meta-divider {
            color: var(--border);
        }

        .article-body {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            word-break: break-word;
        }
        .article-body h2 {
            font-size: 28px;
            color: var(--text);
            font-weight: 700;
            margin: 48px 0 20px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border);
            line-height: 1.4;
        }
        .article-body h3 {
            font-size: 20px;
            color: var(--text);
            font-weight: 600;
            margin: 32px 0 16px;
            line-height: 1.5;
        }
        .article-body h4 {
            font-size: 18px;
            color: var(--text);
            font-weight: 600;
            margin: 24px 0 12px;
        }
        .article-body p {
            margin-bottom: 20px;
        }
        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 4px;
            word-break: break-all;
        }
        .article-body a:hover {
            color: var(--primary-dark);
        }
        .article-body ul,
        .article-body ol {
            margin: 20px 0;
            padding-left: 24px;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body img {
            border-radius: 12px;
            margin: 24px auto;
            box-shadow: var(--shadow);
            max-width: 100%;
        }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: #F0F5FF;
            padding: 16px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
            color: var(--text);
        }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 14px;
        }
        .article-body table th,
        .article-body table td {
            border: 1px solid var(--border);
            padding: 10px 14px;
            text-align: left;
        }
        .article-body table th {
            background: var(--channel-bg);
            font-weight: 600;
            color: var(--text);
        }
        .article-body hr {
            border: none;
            border-top: 1px solid var(--border);
            margin: 32px 0;
        }

        .related-section {
            padding: 80px 0;
            border-top: 1px solid var(--border);
            background: var(--bg);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            display: flex;
            align-items: center;
            gap: 16px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 16px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            text-decoration: none;
            min-width: 0;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(26, 86, 176, 0.18);
        }
        .related-card:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }
        .related-card img {
            width: 120px;
            height: 84px;
            object-fit: cover;
            border-radius: 10px;
            flex-shrink: 0;
            background: var(--channel-bg);
        }
        .related-body {
            min-width: 0;
            flex: 1;
        }
        .related-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(26, 86, 176, 0.08);
            border-radius: 20px;
            padding: 2px 10px;
            margin-bottom: 6px;
            line-height: 1.6;
        }
        .related-body h3 {
            font-size: 15px;
            line-height: 1.55;
            font-weight: 600;
            color: var(--text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color 0.2s ease;
            margin: 0;
        }
        .related-card:hover .related-body h3 {
            color: var(--primary);
        }

        .article-cta {
            background: var(--primary);
            padding: 72px 0;
        }
        .cta-inner {
            max-width: 680px;
            margin: 0 auto;
            text-align: center;
        }
        .cta-inner h2 {
            font-size: 30px;
            color: #fff;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        .empty-section {
            padding: 96px 0;
            background: var(--bg);
        }
        .empty-box {
            max-width: 560px;
            margin: 0 auto;
            text-align: center;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 64px 32px;
        }
        .empty-box h1 {
            font-size: 26px;
            margin-bottom: 12px;
            color: var(--text);
        }
        .empty-box p {
            color: var(--text-muted);
            margin-bottom: 28px;
        }

        .site-footer {
            background: #0F172A;
            color: #fff;
        }
        .footer-main {
            padding: 64px 0 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 40px;
        }
        .footer-brand .logo-text {
            color: #fff;
        }
        .footer-brand .logo-icon {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }
        .footer-brand-desc {
            color: #94A3B8;
            font-size: 14px;
            margin-top: 16px;
            line-height: 1.8;
            max-width: 280px;
        }
        .footer-col-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: #94A3B8;
            font-size: 14px;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-meta p {
            color: #94A3B8;
            font-size: 14px;
            margin-bottom: 6px;
            line-height: 1.7;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
        }
        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }
        .footer-bottom p {
            font-size: 14px;
            color: #94A3B8;
        }
        .footer-bottom a {
            color: #94A3B8;
            transition: color 0.2s ease;
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        @media (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .header-service {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .site-header.scrolled .header-service {
                display: none;
            }
            .header-channel {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                z-index: 99;
                display: none;
                background: #fff;
                border-top: 1px solid var(--border);
                box-shadow: 0 12px 30px rgba(30, 41, 59, 0.12);
            }
            .header-channel.open {
                display: block;
            }
            .header-channel .container {
                flex-direction: column;
                align-items: stretch;
                padding: 12px 16px;
                min-height: auto;
            }
            .main-nav {
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }
            .nav-link {
                border-radius: 10px;
                padding: 12px 16px;
                font-size: 15px;
                border-left: 3px solid transparent;
            }
            .nav-link.active {
                background: rgba(26, 86, 176, 0.06);
                color: var(--primary);
                border-left-color: var(--primary);
            }
            .nav-link.active:hover {
                background: rgba(26, 86, 176, 0.08);
                color: var(--primary-dark);
            }
            .nav-toggle {
                display: inline-flex;
            }
            .article-section {
                padding: 32px 0 48px;
            }
            .article-card {
                padding: 28px;
            }
            .article-header h1 {
                font-size: 28px;
            }
            .article-body h2 {
                font-size: 24px;
            }
            .article-body h3 {
                font-size: 18px;
            }
            .related-section {
                padding: 56px 0;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .article-cta {
                padding: 56px 0;
            }
            .cta-inner h2 {
                font-size: 24px;
            }
            .cta-inner p {
                font-size: 15px;
            }
            .empty-section {
                padding: 64px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-bottom .container {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }

        @media (max-width: 480px) {
            .logo-text {
                font-size: 18px;
            }
            .site-header.scrolled .logo-text {
                font-size: 17px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 17px;
                border-radius: 8px;
            }
            .site-header.scrolled .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 16px;
            }
            .header-actions {
                gap: 10px;
            }
            .header-actions .btn {
                padding: 6px 12px;
                font-size: 13px;
            }
            .article-card {
                padding: 20px;
            }
            .article-header h1 {
                font-size: 24px;
            }
            .article-meta {
                font-size: 13px;
                gap: 8px;
            }
            .related-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .related-card img {
                width: 100%;
                height: auto;
                aspect-ratio: 16 / 9;
            }
            .cta-buttons {
                flex-direction: column;
            }
            .cta-buttons .btn {
                width: 100%;
            }
            .empty-box {
                padding: 40px 20px;
            }
            .empty-box .btn {
                width: 100%;
            }
            .breadcrumb-current {
                max-width: 180px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-main {
                padding: 48px 0 24px;
            }
        }