/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1B3A5C;
            --primary-light: #E8F0F8;
            --secondary: #B8843C;
            --secondary-hover: #996F30;
            --bg: #F4F6F8;
            --surface: #FFFFFF;
            --text: #2A3340;
            --text-secondary: #5A6B7B;
            --border: #E3E8EE;
            --success: #2F7D5C;
            --warning: #C2543E;
            --radius: 8px;
            --radius-btn: 4px;
            --radius-pill: 999px;
            --shadow-card: 0 1px 3px rgba(27, 58, 92, 0.06), 0 4px 12px rgba(27, 58, 92, 0.04);
            --shadow-hover: 0 8px 24px rgba(27, 58, 92, 0.12);
            --transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
            --nav-height: 64px;
            --section-space: 80px;
            --section-space-sm: 56px;
            --container-max: 1200px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
            object-fit: cover;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: var(--secondary);
        }
        ul,
        ol {
            list-style: none;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        input,
        textarea {
            font-family: inherit;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--primary);
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            padding: var(--section-space) 0;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: var(--nav-height);
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(27, 58, 92, 0.05);
        }
        .header-inner {
            height: var(--nav-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .brand-logo {
            display: flex;
            align-items: baseline;
            gap: 8px;
            flex-shrink: 0;
            line-height: 1.2;
        }
        .logo-main {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.01em;
        }
        .logo-main .logo-accent {
            color: var(--secondary);
        }
        .logo-sub {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            letter-spacing: 0.06em;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            padding: 4px 0;
        }
        .main-nav::-webkit-scrollbar {
            display: none;
        }
        .chip {
            display: inline-flex;
            align-items: center;
            height: 32px;
            padding: 0 16px;
            border-radius: var(--radius-pill);
            background: #E9EEF4;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .chip:hover {
            background: var(--primary-light);
            color: var(--primary);
            transform: translateY(-1px);
        }
        .chip.active,
        .chip.is-active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .chip.category-chip {
            background: #fff;
            border: 1px solid var(--border);
            color: var(--primary);
        }
        .chip.category-chip:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            background: #FDF8F0;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            padding: 12px 24px;
            font-size: 15px;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .btn-primary {
            background: var(--secondary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--secondary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }
        .btn-outline {
            border: 1px solid var(--primary);
            color: var(--primary);
            background: transparent;
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary);
            transform: translateY(-1px);
        }
        .btn-ghost {
            border: 1px solid rgba(255, 255, 255, 0.7);
            color: #fff;
            background: transparent;
        }
        .btn-ghost:hover {
            background: #fff;
            color: var(--primary);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
            height: 36px;
        }
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            background: var(--surface);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--bg);
        }
        .nav-toggle.active {
            background: var(--primary);
            color: #fff;
        }

        /* ===== 移动端导航菜单 ===== */
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            z-index: 99;
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-hover);
            padding: 16px 24px 24px;
            max-height: calc(100vh - var(--nav-height));
            overflow-y: auto;
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu .chip {
            display: flex;
            width: 100%;
            height: 44px;
            justify-content: flex-start;
            border-radius: var(--radius);
            margin-bottom: 8px;
            font-size: 15px;
        }
        .mobile-menu .btn {
            width: 100%;
            margin-top: 8px;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 80vh;
            display: flex;
            align-items: center;
            background: var(--bg);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            padding: calc(var(--nav-height) + 48px) 0 48px;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(244, 246, 248, 0.96) 0%, rgba(244, 246, 248, 0.88) 45%, rgba(244, 246, 248, 0.55) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-content {
            padding-right: 24px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 20px;
            box-shadow: var(--shadow-card);
        }
        .hero-badge i {
            color: var(--secondary);
        }
        .hero h1 {
            font-size: 42px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: 0;
        }
        .hero h1 .highlight {
            color: var(--secondary);
        }
        .hero-sub {
            font-size: 18px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 540px;
            margin-bottom: 28px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 32px;
        }
        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .hero-trust span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .hero-trust i {
            color: var(--success);
            font-size: 13px;
        }
        .hero-visual {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            transition: var(--transition);
        }
        .hero-visual img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }
        .hero-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius);
            pointer-events: none;
        }
        .hero-stats {
            position: absolute;
            bottom: 20px;
            left: 20px;
            background: rgba(255, 255, 255, 0.95);
            border-radius: var(--radius);
            padding: 14px 20px;
            box-shadow: var(--shadow-hover);
            backdrop-filter: blur(4px);
        }
        .hero-stats .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
        }
        .hero-stats .stat-value {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
        }

        /* ===== 通用区块标题 ===== */
        .section-head {
            margin-bottom: 48px;
        }
        .section-eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--secondary);
            margin-bottom: 8px;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .section-head p {
            color: var(--text-secondary);
            font-size: 16px;
            max-width: 640px;
        }
        .section-head.center {
            text-align: center;
        }
        .section-head.center p {
            margin: 0 auto;
        }

        /* ===== 卖点区 ===== */
        .features-section {
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .features-intro {
            padding-right: 32px;
        }
        .features-intro h2 {
            font-size: 32px;
            margin-bottom: 16px;
        }
        .features-intro>p {
            color: var(--text-secondary);
            margin-bottom: 24px;
            line-height: 1.8;
        }
        .features-list-dot {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .features-list-dot li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            color: var(--text);
        }
        .features-list-dot i {
            color: var(--secondary);
            margin-top: 5px;
            font-size: 14px;
        }
        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .feature-card .feature-num {
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 32px;
            font-weight: 700;
            color: #EDF1F5;
            line-height: 1;
            font-variant-numeric: tabular-nums;
            transition: color .2s ease;
        }
        .feature-card:hover .feature-num {
            color: rgba(184, 132, 60, 0.25);
        }
        .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius);
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            margin-bottom: 16px;
        }
        .feature-card h3 {
            font-size: 19px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--primary);
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 展示区 ===== */
        .showcase-section {
            background: var(--bg);
        }
        .showcase-block {
            display: flex;
            align-items: center;
            gap: 48px;
            margin-bottom: 64px;
        }
        .showcase-block:last-child {
            margin-bottom: 0;
        }
        .showcase-block.reverse {
            flex-direction: row-reverse;
        }
        .showcase-media {
            flex: 1;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            position: relative;
        }
        .showcase-media img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .showcase-media:hover img {
            transform: scale(1.03);
        }
        .showcase-content {
            flex: 1;
        }
        .showcase-content .tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            padding: 4px 14px;
            margin-bottom: 14px;
        }
        .showcase-content h3 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--primary);
        }
        .showcase-content>p {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .showcase-content ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .showcase-content ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
        }
        .showcase-content ul li i {
            color: var(--secondary);
            margin-top: 5px;
            font-size: 14px;
        }

        /* ===== 证据区 ===== */
        .proof-section {
            background: var(--primary);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .proof-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            border: 2px solid rgba(255, 255, 255, 0.08);
        }
        .proof-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: 30%;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            border: 2px solid rgba(255, 255, 255, 0.05);
        }
        .proof-section .section-head h2 {
            color: #fff;
        }
        .proof-section .section-head p {
            color: rgba(255, 255, 255, 0.8);
        }
        .proof-stats {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 32px;
            margin: 40px 0 48px;
        }
        .stat-item {
            text-align: center;
            padding: 24px 36px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius);
            background: rgba(255, 255, 255, 0.06);
            min-width: 180px;
            transition: var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }
        .stat-circle {
            width: 88px;
            height: 88px;
            border-radius: 50%;
            border: 3px solid var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
        }
        .stat-circle i {
            font-size: 28px;
            color: var(--secondary);
        }
        .stat-item .stat-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
        }
        .stat-item .stat-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.5;
        }
        .proof-quote {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: var(--radius);
            padding: 32px;
            max-width: 780px;
            margin: 0 auto;
            position: relative;
            text-align: center;
        }
        .proof-quote .quote-icon {
            font-size: 28px;
            color: var(--secondary);
            margin-bottom: 12px;
        }
        .proof-quote blockquote {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.95);
            margin-bottom: 16px;
            border: none;
            padding: 0;
        }
        .proof-quote cite {
            font-style: normal;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            display: block;
        }

        /* ===== 最新资讯 ===== */
        .news-section {
            background: var(--bg);
        }
        .news-grid {
            display: grid;
            grid-template-columns: 1fr 380px;
            gap: 48px;
            align-items: start;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-item {
            display: flex;
            align-items: center;
            gap: 24px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .news-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .news-item .news-date {
            flex-shrink: 0;
            background: var(--primary-light);
            border-radius: var(--radius);
            padding: 10px 14px;
            text-align: center;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            min-width: 72px;
            line-height: 1.4;
        }
        .news-item .news-body {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 6px;
            display: block;
            line-height: 1.4;
            transition: color .2s ease;
        }
        .news-item:hover .news-title {
            color: var(--secondary);
        }
        .news-item .news-cat {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--secondary);
            background: #FDF8F0;
            border-radius: var(--radius-pill);
            padding: 2px 10px;
            margin-bottom: 6px;
        }
        .news-item .news-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .news-arrow {
            color: var(--text-secondary);
            font-size: 20px;
            flex-shrink: 0;
            transition: transform .2s ease, color .2s ease;
        }
        .news-item:hover .news-arrow {
            transform: translateX(4px);
            color: var(--secondary);
        }
        .news-sidebar {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            box-shadow: var(--shadow-card);
        }
        .news-sidebar h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .news-sidebar h3 i {
            color: var(--secondary);
        }
        .news-sidebar ul {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .news-sidebar ul li a {
            font-size: 15px;
            color: var(--text);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.5;
            transition: color .2s ease;
        }
        .news-sidebar ul li a:hover {
            color: var(--secondary);
        }
        .news-sidebar ul li a::before {
            content: '·';
            color: var(--secondary);
            font-weight: 700;
            font-size: 20px;
            line-height: 1;
            margin-top: 4px;
        }
        .empty-state {
            border: 2px dashed var(--border);
            border-radius: var(--radius);
            padding: 48px 24px;
            text-align: center;
            color: var(--text-secondary);
            background: var(--surface);
        }
        .empty-state i {
            font-size: 32px;
            color: var(--border);
            display: block;
            margin-bottom: 12px;
        }
        .empty-state p {
            font-size: 16px;
        }

        /* ===== 价格区 ===== */
        .pricing-section {
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            margin-top: 48px;
        }
        .price-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            position: relative;
            display: flex;
            flex-direction: column;
        }
        .price-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .price-card .recommend-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--secondary);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
        }
        .price-card.featured {
            border-color: var(--secondary);
            box-shadow: 0 4px 20px rgba(184, 132, 60, 0.18);
        }
        .price-card .plan-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .price-card .plan-desc {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }
        .price-card .plan-price {
            font-size: 34px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 20px;
            font-variant-numeric: tabular-nums;
            line-height: 1.3;
        }
        .price-card .plan-price .unit {
            font-size: 16px;
            font-weight: 400;
            color: var(--text-secondary);
        }
        .price-card ul {
            flex: 1;
            margin-bottom: 24px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .price-card ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            line-height: 1.5;
        }
        .price-card ul li i {
            color: var(--success);
            margin-top: 4px;
            font-size: 13px;
        }
        .price-card .btn {
            width: 100%;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg);
            position: relative;
        }
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1.6fr;
            gap: 48px;
            align-items: start;
        }
        .faq-intro {
            position: sticky;
            top: calc(var(--nav-height) + 24px);
        }
        .faq-intro h2 {
            font-size: 32px;
            margin-bottom: 16px;
        }
        .faq-intro p {
            color: var(--text-secondary);
            margin-bottom: 24px;
            line-height: 1.8;
        }
        .accordion {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }
        .accordion .accordion-item {
            border-bottom: 1px solid var(--border);
        }
        .accordion .accordion-item:last-child {
            border-bottom: none;
        }
        .accordion .accordion-title {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            background: var(--surface);
            transition: background .2s ease;
        }
        .accordion .accordion-title:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .accordion .accordion-title::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--secondary);
            flex-shrink: 0;
            margin-left: 12px;
        }
        .accordion .accordion-item.is-active .accordion-title::after {
            content: '−';
        }
        .accordion .accordion-content {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
        }
        .accordion .accordion-content p {
            margin: 0;
        }

        /* ===== CTA 区域 ===== */
        .cta-section {
            background: var(--primary);
            color: #fff;
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            right: -40px;
            top: -40px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            border: 2px solid rgba(255, 255, 255, 0.1);
        }
        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }
        .cta-copy h2 {
            color: #fff;
            font-size: 30px;
            margin-bottom: 8px;
        }
        .cta-copy p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            max-width: 520px;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #162B42;
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 24px;
        }
        .footer-top {
            display: flex;
            justify-content: space-between;
            gap: 48px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }
        .footer-brand {
            max-width: 360px;
        }
        .footer-brand .logo-main {
            color: #fff;
            font-size: 20px;
            display: block;
            margin-bottom: 8px;
        }
        .footer-brand .logo-sub {
            color: rgba(255, 255, 255, 0.6);
            display: block;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-links {
            display: flex;
            gap: 48px;
            flex-wrap: wrap;
        }
        .footer-links h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .footer-links ul li {
            margin-bottom: 8px;
        }
        .footer-links ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: color .2s ease;
        }
        .footer-links ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.45);
            display: flex;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* ===== 浮动 CTA ===== */
        .floating-cta {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 99;
            background: var(--secondary);
            color: #fff;
            border-radius: var(--radius-pill);
            padding: 14px 24px;
            font-size: 15px;
            font-weight: 600;
            box-shadow: 0 8px 24px rgba(184, 132, 60, 0.4);
            display: flex;
            align-items: center;
            gap: 8px;
            opacity: 0;
            transform: translateY(20px);
            pointer-events: none;
            transition: opacity .3s ease, transform .3s ease, background .2s ease;
        }
        .floating-cta.show {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
        .floating-cta:hover {
            background: var(--secondary-hover);
            color: #fff;
        }
        .floating-cta i {
            font-size: 14px;
        }
        @keyframes floatPulse {
            0%,
            100% {
                box-shadow: 0 8px 24px rgba(184, 132, 60, 0.4);
            }
            50% {
                box-shadow: 0 8px 32px rgba(184, 132, 60, 0.55);
            }
        }
        .floating-cta.show {
            animation: floatPulse 3s ease-in-out infinite;
        }

        /* ===== Focus / Active 状态 ===== */
        a:focus-visible,
        button:focus-visible,
        .chip:focus-visible,
        .btn:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }
        .chip:active {
            transform: scale(0.97);
        }
        .btn:active {
            transform: scale(0.98);
        }
        a:visited {
            color: auto;
        }

        /* ===== 响应式断点 ===== */
        @media (max-width: 1024px) {
            .main-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .hero h1 {
                font-size: 36px;
            }
            .section-head h2 {
                font-size: 28px;
            }
            .features-intro {
                padding-right: 0;
                margin-bottom: 32px;
            }
            .showcase-block,
            .showcase-block.reverse {
                flex-direction: column;
                gap: 24px;
            }
            .showcase-media img {
                height: 260px;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .pricing-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .price-card:last-child {
                grid-column: 1 / -1;
                max-width: 480px;
                margin: 0 auto;
            }
            .faq-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .faq-intro {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .header-actions .btn-sm {
                display: none;
            }
            .hero {
                padding: calc(var(--nav-height) + 24px) 0 32px;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero-visual img {
                height: 280px;
            }
            .hero-stats {
                bottom: 12px;
                left: 12px;
                padding: 10px 14px;
            }
            section {
                padding: var(--section-space-sm) 0;
            }
            .section-head {
                margin-bottom: 32px;
            }
            .proof-stats {
                gap: 16px;
            }
            .stat-item {
                min-width: 140px;
                padding: 16px 20px;
            }
            .cta-inner {
                flex-direction: column;
                text-align: center;
            }
            .cta-actions {
                justify-content: center;
            }
            .footer-top {
                flex-direction: column;
                gap: 28px;
            }
            .floating-cta {
                right: 16px;
                bottom: 16px;
                padding: 12px 18px;
            }
        }
        @media (max-width: 639px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 26px;
            }
            .hero-sub {
                font-size: 16px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
            }
            .price-card:last-child {
                grid-column: auto;
                max-width: none;
            }
            .news-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 18px;
            }
            .news-item .news-date {
                min-width: auto;
                padding: 4px 12px;
            }
            .accordion .accordion-title {
                padding: 16px 18px;
                font-size: 15px;
            }
            .accordion .accordion-content {
                padding: 0 18px 16px;
            }
            .stat-item {
                min-width: 100%;
                width: 100%;
            }
            .proof-stats {
                flex-direction: column;
            }
            .footer-bottom {
                flex-direction: column;
                justify-content: center;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1B3A5C;
            --primary-light: #E8F0F8;
            --secondary: #B8843C;
            --secondary-dark: #996F30;
            --bg: #F4F6F8;
            --surface: #FFFFFF;
            --text: #2A3340;
            --text-muted: #5A6B7B;
            --border: #E3E8EE;
            --success: #2F7D5C;
            --warning: #C2543E;
            --radius: 8px;
            --radius-btn: 4px;
            --radius-pill: 999px;
            --shadow-sm: 0 1px 3px rgba(27, 58, 92, 0.06), 0 4px 12px rgba(27, 58, 92, 0.04);
            --shadow-hover: 0 8px 24px rgba(27, 58, 92, 0.12);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
            --space-section: 80px;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; display: block; }
        a { color: inherit; text-decoration: none; transition: color .2s ease; }
        a:hover { color: var(--secondary); }
        ul, ol { list-style: none; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .section { padding: var(--space-section) 0; }

        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            padding: 12px 24px;
            cursor: pointer;
            border: 1px solid transparent;
            transition: all .2s ease;
            line-height: 1.4;
        }
        .btn-primary { background: var(--secondary); color: #fff; }
        .btn-primary:hover { background: var(--secondary-dark); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-hover); }
        .btn-outline { border-color: var(--primary); color: var(--primary); background: transparent; }
        .btn-outline:hover { background: var(--primary-light); color: var(--primary); }
        .btn-light { border-color: #fff; color: #fff; background: transparent; }
        .btn-light:hover { background: #fff; color: var(--primary); }
        .btn-sm { padding: 8px 18px; font-size: 14px; }
        .btn-lg { padding: 15px 32px; font-size: 16px; }

        /* 头部导航 */
        .site-header {
            position: fixed;
            top: 0; left: 0; right: 0;
            z-index: 1000;
            height: 64px;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(27, 58, 92, 0.04);
        }
        .header-inner {
            max-width: 1400px;
            height: 64px;
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 0 32px;
        }
        .brand-logo {
            display: flex;
            flex-direction: column;
            line-height: 1.15;
            flex-shrink: 0;
        }
        .brand-logo .logo-main {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.01em;
        }
        .brand-logo .logo-accent { color: var(--secondary); }
        .brand-logo .logo-sub {
            font-size: 11px;
            font-weight: 600;
            color: var(--text-muted);
            letter-spacing: 0.12em;
            text-transform: uppercase;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
            overflow-x: auto;
            scrollbar-width: none;
        }
        .main-nav::-webkit-scrollbar { display: none; }
        .chip {
            display: inline-flex;
            align-items: center;
            height: 34px;
            padding: 0 16px;
            border-radius: var(--radius-pill);
            background: #E9EEF4;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: all .2s ease;
        }
        .chip:hover { background: var(--primary-light); color: var(--primary); }
        .chip.active { background: var(--primary); color: #fff; }
        .chip.category-chip { background: #F0E9DD; color: var(--secondary-dark); }
        .chip.category-chip.active { background: var(--secondary); color: #fff; }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--primary);
            cursor: pointer;
            padding: 6px;
            border-radius: 6px;
        }
        .nav-toggle:focus { outline: 2px solid var(--secondary); }

        /* 分类页 Hero */
        .category-hero {
            position: relative;
            padding: 180px 0 80px;
            background: linear-gradient(rgba(27, 58, 92, 0.82), rgba(27, 58, 92, 0.72)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            border-bottom: 3px solid var(--secondary);
        }
        .category-hero h1 {
            font-size: 42px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }
        .category-hero h1 span { color: #E9C488; }
        .category-hero p {
            font-size: 17px;
            max-width: 620px;
            color: rgba(255,255,255,0.9);
            line-height: 1.8;
            margin-bottom: 28px;
        }
        .category-hero-meta {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255,255,255,0.14);
            border: 1px solid rgba(255,255,255,0.25);
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            backdrop-filter: none;
        }
        .hero-badge i { color: #E9C488; }

        /* 分类介绍 */
        .intro-strip {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 40px 0;
        }
        .intro-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .intro-grid h2 { font-size: 26px; color: var(--primary); margin-bottom: 14px; }
        .intro-grid p { color: var(--text-muted); font-size: 15px; line-height: 1.8; }
        .intro-tags { display: flex; gap: 8px; flex-wrap: wrap; }
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: #E9EEF4;
            padding: 5px 12px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
        }
        .tag.gold { background: #F5ECDF; color: var(--secondary-dark); }

        /* 宽幅列表 */
        .timeline-section {
            padding: var(--space-section) 0;
        }
        .section-head {
            margin-bottom: 40px;
        }
        .section-head h2 {
            font-size: 30px;
            color: var(--primary);
            margin-bottom: 8px;
            position: relative;
            display: inline-block;
        }
        .section-head h2::after {
            content: '';
            position: absolute;
            bottom: -6px; left: 0;
            width: 48px; height: 3px;
            background: var(--secondary);
            border-radius: 2px;
        }
        .section-head p { color: var(--text-muted); max-width: 640px; }
        .timeline-list { display: flex; flex-direction: column; gap: 16px; }
        .timeline-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 26px 28px;
            display: grid;
            grid-template-columns: 110px 1fr auto;
            gap: 24px;
            align-items: center;
            transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
            position: relative;
            overflow: hidden;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            top: 0; left: 0;
            width: 4px; height: 100%;
            background: var(--secondary);
            opacity: 0;
            transition: opacity .2s ease;
        }
        .timeline-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            border-color: #D0D9E2;
        }
        .timeline-item:hover::before { opacity: 1; }
        .timeline-date {
            font-size: 13px;
            font-weight: 700;
            color: var(--secondary-dark);
            background: #F7F1E7;
            padding: 8px 12px;
            border-radius: 6px;
            text-align: center;
            line-height: 1.3;
            font-variant-numeric: tabular-nums;
        }
        .timeline-date small { display: block; font-size: 11px; color: var(--text-muted); font-weight: 500; }
        .timeline-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .timeline-content h3 a { color: inherit; }
        .timeline-content h3 a:hover { color: var(--secondary); }
        .timeline-content p { font-size: 14px; color: var(--text-muted); line-height: 1.7; max-width: 600px; }
        .timeline-action .btn { white-space: nowrap; }

        /* FAQ */
        .faq-section {
            padding: var(--space-section) 0;
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 44px;
        }
        .faq-grid .section-head { margin-bottom: 0; }
        .accordion { background: transparent; }
        .accordion-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 12px;
            transition: box-shadow .2s ease, border-color .2s ease;
        }
        .accordion-item:hover { border-color: #C9D4DF; }
        .accordion-item.is-active { box-shadow: var(--shadow-sm); border-color: #C9D4DF; }
        .accordion-title {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            background: transparent;
            border: none;
        }
        .accordion-title:hover { color: var(--primary); }
        .accordion-title::after {
            content: '+';
            font-size: 24px;
            font-weight: 400;
            color: var(--secondary);
            line-height: 1;
            margin-left: 12px;
            transition: transform .25s ease;
        }
        .accordion-item.is-active .accordion-title::after { content: '−'; transform: rotate(180deg); }
        .accordion-content {
            padding: 0 22px 18px;
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.8;
        }
        .accordion-content p { color: var(--text-muted); }

        /* CTA 区域 */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(135deg, #1B3A5C 0%, #244B73 100%);
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px; right: -80px; bottom: -60px; left: -80px;
            background: repeating-linear-gradient(45deg, rgba(255,255,255,0.02) 0px, rgba(255,255,255,0.02) 2px, transparent 2px, transparent 24px);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 30px;
            margin-bottom: 14px;
            position: relative;
        }
        .cta-section p {
            color: rgba(255,255,255,0.85);
            max-width: 560px;
            margin: 0 auto 30px;
            font-size: 15px;
            position: relative;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
        }

        /* 页脚 */
        .site-footer {
            background: var(--primary);
            color: rgba(255,255,255,0.85);
            padding: 60px 0 24px;
            font-size: 14px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 50px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255,255,255,0.12);
            margin-bottom: 24px;
        }
        .footer-brand .logo-main {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            display: block;
        }
        .footer-brand .logo-sub {
            font-size: 12px;
            color: #E9C488;
            font-weight: 600;
            letter-spacing: 0.08em;
            display: block;
            margin-bottom: 14px;
        }
        .footer-brand p { font-size: 13px; line-height: 1.8; color: rgba(255,255,255,0.7); max-width: 360px; }
        .footer-links {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .footer-links h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .footer-links ul li { margin-bottom: 10px; }
        .footer-links ul li a { color: rgba(255,255,255,0.7); font-size: 13px; transition: color .2s ease; }
        .footer-links ul li a:hover { color: #E9C488; }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: rgba(255,255,255,0.5);
        }

        /* 浮动 CTA */
        .floating-cta {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 999;
            background: var(--secondary);
            color: #fff;
            border: none;
            border-radius: var(--radius-pill);
            padding: 14px 26px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            box-shadow: 0 6px 20px rgba(184, 132, 60, 0.35);
            display: none;
            align-items: center;
            gap: 8px;
            transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
            animation: floatPulse 2.4s ease-in-out infinite;
        }
        .floating-cta:hover {
            background: var(--secondary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(184, 132, 60, 0.4);
        }
        .floating-cta.show { display: inline-flex; }
        @keyframes floatPulse {
            0%, 100% { box-shadow: 0 6px 20px rgba(184, 132, 60, 0.35); }
            50% { box-shadow: 0 8px 26px rgba(184, 132, 60, 0.5); }
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .main-nav { justify-content: flex-start; }
            .chip { padding: 0 13px; font-size: 13px; }
            .header-inner { padding: 0 20px; gap: 12px; }
            .timeline-item { grid-template-columns: 100px 1fr; }
            .timeline-action { grid-column: 2; }
        }
        @media (max-width: 768px) {
            :root { --space-section: 56px; }
            .container { padding: 0 16px; }
            .site-header { height: 58px; }
            .header-inner { height: 58px; padding: 0 16px; }
            .brand-logo .logo-main { font-size: 17px; }
            .brand-logo .logo-sub { font-size: 10px; }
            .main-nav {
                position: fixed;
                top: 58px; left: 0; right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 12px;
                gap: 6px;
                box-shadow: 0 8px 24px rgba(27,58,92,0.12);
                border-bottom: 1px solid var(--border);
                transform: translateY(-150%);
                opacity: 0;
                transition: transform .3s ease, opacity .3s ease;
                pointer-events: none;
                max-height: calc(100vh - 58px);
                overflow-y: auto;
            }
            .main-nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
            .chip, .chip.category-chip { justify-content: center; height: 40px; border-radius: var(--radius-btn); }
            .nav-toggle { display: block; }
            .header-actions .btn-primary { display: none; }
            .category-hero { padding: 130px 0 50px; text-align: center; }
            .category-hero h1 { font-size: 30px; }
            .category-hero p { font-size: 15px; margin-left: auto; margin-right: auto; }
            .hero-badge { font-size: 12px; }
            .intro-grid { grid-template-columns: 1fr; gap: 20px; }
            .timeline-item { grid-template-columns: 1fr; gap: 12px; padding: 20px; }
            .timeline-date {
                display: flex;
                align-items: center;
                gap: 8px;
                justify-content: flex-start;
                width: auto;
                padding: 5px 10px;
                font-size: 12px;
            }
            .timeline-date small { display: inline; }
            .timeline-action { grid-column: 1; }
            .timeline-action .btn { width: 100%; }
            .faq-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-top { grid-template-columns: 1fr; gap: 30px; }
            .footer-links { grid-template-columns: 1fr 1fr; gap: 20px; }
            .floating-cta { right: 16px; bottom: 16px; padding: 12px 20px; font-size: 14px; min-width: 0; }
            .cta-section h2 { font-size: 24px; }
            .cta-section p { font-size: 14px; }
        }
        @media (max-width: 520px) {
            .category-hero h1 { font-size: 26px; }
            .section-head h2 { font-size: 22px; }
            .timeline-content h3 { font-size: 16px; }
            .timeline-content p { font-size: 13px; }
            .accordion-title { font-size: 15px; padding: 15px 16px; }
            .accordion-content { padding: 0 16px 14px; font-size: 13px; }
            .footer-bottom { flex-direction: column; text-align: center; gap: 6px; }
            .btn-lg { width: 100%; }
            .cta-actions .btn { width: 100%; }
        }

/* roulang page: article */
:root{
  --primary:#1B3A5C;
  --primary-dark:#142A43;
  --secondary:#B8843C;
  --secondary-dark:#996F30;
  --bg:#F4F6F8;
  --surface:#FFFFFF;
  --text:#2A3340;
  --text-weak:#5A6B7B;
  --border:#E3E8EE;
  --radius-card:8px;
  --radius-btn:4px;
  --shadow-card:0 1px 3px rgba(27,58,92,.06),0 4px 12px rgba(27,58,92,.04);
  --shadow-raised:0 8px 24px rgba(27,58,92,.12);
  --container:1200px;
  --reading:720px;
  --space:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  padding-top:64px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--secondary);}
ul,ol{padding-left:1.25rem;}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;line-height:1.4;color:var(--text);}
p{margin:0;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--radius-btn);
  font-size:14px;
  font-weight:600;
  line-height:1;
  text-decoration:none;
  cursor:pointer;
  border:1px solid transparent;
  transition:all .2s ease;
  background:transparent;
}
.btn-primary{background:var(--secondary);border-color:var(--secondary);color:#fff;}
.btn-primary:hover{background:var(--secondary-dark);border-color:var(--secondary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-raised);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{border:1px solid var(--primary);color:var(--primary);background:transparent;}
.btn-outline:hover{background:#E8F0F8;color:var(--primary);}
.btn-gold{background:var(--secondary);border-color:var(--secondary);color:#fff;}
.btn-gold:hover{background:var(--secondary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-raised);}
.btn-outline-light{border:1px solid rgba(255,255,255,.85);color:#fff;background:transparent;}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn-sm{padding:9px 18px;font-size:13px;}

.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:100;
  background:var(--surface);
  border-bottom:1px solid var(--border);
  box-shadow:0 1px 3px rgba(27,58,92,.04);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:64px;
}
.brand-logo{
  display:flex;
  flex-direction:column;
  line-height:1.15;
  text-decoration:none;
  flex-shrink:0;
}
.logo-main{
  font-size:20px;
  font-weight:700;
  color:var(--primary);
  letter-spacing:.02em;
}
.logo-accent{color:var(--secondary);}
.logo-sub{
  font-size:11px;
  color:var(--text-weak);
  letter-spacing:.06em;
  margin-top:2px;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:8px;
  margin-left:auto;
  flex-wrap:wrap;
}
.chip{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:32px;
  padding:0 16px;
  border-radius:999px;
  background:#E9EEF4;
  color:var(--primary);
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
  text-decoration:none;
  border:none;
  white-space:nowrap;
  transition:all .2s ease;
}
.chip:hover{background:#DCE5EF;color:var(--primary);}
.chip.active{background:var(--secondary);color:#fff;}
.chip.active:hover{background:var(--secondary-dark);color:#fff;}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.nav-toggle{
  display:none;
  width:40px;
  height:40px;
  align-items:center;
  justify-content:center;
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:var(--radius-btn);
  color:var(--primary);
  font-size:16px;
  cursor:pointer;
  transition:all .2s ease;
}
.nav-toggle:hover{background:#E9EEF4;}

.breadcrumb-band{
  padding:24px 0 0;
}
.breadcrumb{
  max-width:var(--reading);
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-weak);
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--text-weak);}
.breadcrumb a:hover{color:var(--secondary);}
.breadcrumb .sep{color:#C6D0DB;}
.breadcrumb .current{color:var(--text);font-weight:600;max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.article-heading{
  padding:28px 0 24px;
}
.article-heading-inner{
  max-width:var(--reading);
  margin:0 auto;
}
.article-heading .badge{margin-bottom:14px;}
.article-title{
  font-size:38px;
  line-height:1.3;
  letter-spacing:.01em;
  margin-bottom:18px;
}
.article-meta{
  display:flex;
  align-items:center;
  gap:20px;
  color:var(--text-weak);
  font-size:13px;
  flex-wrap:wrap;
}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.badge{
  display:inline-flex;
  align-items:center;
  padding:5px 14px;
  border-radius:999px;
  background:#E9EEF4;
  color:var(--primary);
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
}

.article-section{
  padding:16px 0 var(--space);
}
.article-body{
  max-width:var(--reading);
  margin:0 auto;
  padding:40px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
}
.cms-article p{
  margin:0 0 1.5em;
  line-height:1.85;
  color:var(--text);
}
.cms-article h2{
  font-size:26px;
  margin:42px 0 18px;
  padding-bottom:10px;
  border-bottom:1px solid var(--border);
}
.cms-article h3{
  font-size:20px;
  margin:32px 0 14px;
}
.cms-article h4{
  font-size:17px;
  margin:24px 0 10px;
}
.cms-article ul,
.cms-article ol{
  margin:0 0 1.5em;
  padding-left:1.4rem;
}
.cms-article li{margin-bottom:.5em;}
.cms-article blockquote{
  margin:28px 0;
  padding:20px 24px;
  border-left:3px solid var(--secondary);
  background:#FAF7F0;
  border-radius:0 8px 8px 0;
  color:var(--text);
}
.cms-article blockquote p:last-child{margin-bottom:0;}
.cms-article img{
  border-radius:6px;
  margin:24px 0;
}
.cms-article table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:14px;
}
.cms-article table th,
.cms-article table td{
  border:1px solid var(--border);
  padding:10px 12px;
  text-align:left;
}
.cms-article table th{background:#E9EEF4;font-weight:600;}
.cms-article a{font-weight:600;text-decoration:underline;text-underline-offset:3px;}
.cms-article code{
  background:#E9EEF4;
  border-radius:4px;
  padding:2px 6px;
  font-size:14px;
}
.not-found-panel{
  text-align:center;
  padding:40px 20px;
}
.not-found-panel i{
  font-size:44px;
  color:var(--secondary);
  margin-bottom:18px;
  display:inline-block;
}
.not-found-panel h3{
  font-size:22px;
  margin-bottom:12px;
}
.not-found-panel p{
  color:var(--text-weak);
  margin-bottom:24px;
}

.article-footer{
  max-width:var(--reading);
  margin:32px auto 0;
  padding:0 4px;
}
.tag-row{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  padding-bottom:28px;
  border-bottom:1px solid var(--border);
}
.tag-row .tag-label{
  font-size:13px;
  color:var(--text-weak);
  font-weight:600;
}
.tag-chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border-radius:999px;
  background:#E9EEF4;
  color:var(--primary);
  font-size:13px;
  font-weight:600;
  text-decoration:none;
  transition:all .2s ease;
}
.tag-chip:hover{background:var(--secondary);color:#fff;}
.article-links{
  display:flex;
  gap:24px;
  padding-top:20px;
  font-size:14px;
}
.article-links a{font-weight:600;display:inline-flex;align-items:center;gap:6px;}

.related-section{
  padding:0 0 var(--space);
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:28px;
}
.section-head h2{
  font-size:30px;
  letter-spacing:.01em;
}
.section-head .link-more{
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.section-head .link-more:hover{color:var(--secondary);}
.related-grid .cell{margin-bottom:24px;}
.related-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  height:100%;
  display:flex;
  flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.related-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-raised);
}
.related-card img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
}
.related-body{
  padding:24px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.related-body h3{
  font-size:18px;
  line-height:1.5;
  margin-bottom:10px;
}
.related-body h3 a{color:var(--text);}
.related-body h3 a:hover{color:var(--secondary);}
.related-body p{
  color:var(--text-weak);
  font-size:14px;
  line-height:1.7;
  margin-bottom:18px;
  flex:1;
}
.related-body .btn{align-self:flex-start;}

.cta-band{
  background:linear-gradient(rgba(27,58,92,.93),rgba(27,58,92,.93)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding:68px 0;
  color:#fff;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-copy h2{
  color:#fff;
  font-size:30px;
  margin-bottom:10px;
}
.cta-copy p{
  color:rgba(255,255,255,.82);
  max-width:560px;
}
.cta-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}

.site-footer{
  background:var(--primary);
  color:rgba(255,255,255,.85);
  padding:56px 0 24px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.2fr 1fr;
  gap:48px;
}
.footer-brand .logo-main{color:#fff;font-size:22px;}
.footer-brand .logo-sub{color:rgba(255,255,255,.7);font-size:12px;}
.footer-brand p{
  color:rgba(255,255,255,.7);
  font-size:14px;
  margin-top:16px;
  max-width:340px;
}
.footer-links{
  display:flex;
  gap:56px;
  justify-content:flex-end;
}
.footer-links h4{
  color:#fff;
  font-size:14px;
  margin-bottom:14px;
}
.footer-links ul{
  list-style:none;
  margin:0;
  padding:0;
}
.footer-links li{margin-bottom:10px;}
.footer-links a{
  color:rgba(255,255,255,.7);
  font-size:14px;
}
.footer-links a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.15);
  margin-top:44px;
  padding-top:20px;
  display:flex;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:rgba(255,255,255,.55);
  flex-wrap:wrap;
}

.float-cta{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:200;
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:var(--secondary);
  color:#fff;
  padding:14px 24px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  box-shadow:var(--shadow-raised);
  text-decoration:none;
  animation:breathe 3s ease-in-out infinite;
}
.float-cta:hover{background:var(--secondary-dark);color:#fff;transform:translateY(-2px);}
@keyframes breathe{
  0%,100%{box-shadow:0 8px 24px rgba(27,58,92,.2);}
  50%{box-shadow:0 8px 32px rgba(184,132,60,.3);}
}

.main-nav .chip:focus-visible,
.btn:focus-visible,
.tag-chip:focus-visible,
.nav-toggle:focus-visible,
.float-cta:focus-visible{
  outline:2px solid var(--secondary);
  outline-offset:2px;
}

@media (max-width:1024px){
  .container{padding:0 20px;}
  .main-nav{gap:6px;}
  .chip{padding:0 12px;}
  .footer-top{grid-template-columns:1fr;gap:32px;}
  .footer-links{justify-content:flex-start;}
}
@media (max-width:768px){
  body{padding-top:64px;}
  .header-inner{gap:12px;}
  .header-actions .btn{padding:9px 14px;font-size:12px;}
  .main-nav{
    display:none;
    position:absolute;
    top:100%;
    left:0;
    right:0;
    background:var(--surface);
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:14px 16px 20px;
    border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-raised);
    margin:0;
  }
  .main-nav.is-open{display:flex;}
  .main-nav .chip{
    justify-content:flex-start;
    height:38px;
    width:100%;
    border-radius:6px;
    padding:0 14px;
  }
  .nav-toggle{display:inline-flex;}
  .article-title{font-size:28px;}
  .article-body{padding:24px 22px;}
  .related-body{padding:20px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-copy p{max-width:100%;}
  .float-cta{right:16px;bottom:16px;padding:12px 18px;font-size:13px;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  .breadcrumb-band{padding-top:18px;}
  .article-section{padding-bottom:56px;}
  .article-heading{padding:22px 0 18px;}
  .article-meta{gap:12px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px;}
  .section-head h2{font-size:24px;}
  .cta-band{padding:52px 0;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .footer-top{grid-template-columns:1fr;}
  .footer-links{flex-direction:column;gap:28px;}
  .footer-bottom{flex-direction:column;}
}