/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1e3a5f;
            --primary-dark: #142c47;
            --primary-light: #2c4f7e;
            --accent: #c9a24b;
            --accent-hover: #b8903a;
            --bg-body: #f4f6fa;
            --bg-dark: #12233a;
            --bg-card: #ffffff;
            --text-main: #1a2233;
            --text-weak: #5a6a80;
            --text-invert: #ffffff;
            --border: #e2e8f0;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
            --container-w: 1200px;
            --font-main: "PingFang SC", "Microsoft YaHei", -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        :focus-visible {
            outline: 3px solid rgba(201, 162, 75, 0.5);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        /* ===== 导航 - 浮动Dock ===== */
        .dock-nav-wrap {
            position: sticky;
            top: 16px;
            z-index: 999;
            padding: 0 20px;
        }
        .dock-nav {
            max-width: 1120px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-radius: 56px;
            border: 1px solid rgba(226, 232, 240, 0.9);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 18px 10px 28px;
            gap: 16px;
            position: relative;
        }
        .dock-logo a {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .dock-logo a i {
            color: var(--accent);
            font-size: 22px;
        }
        .dock-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .dock-menu a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-weak);
            padding: 8px 18px;
            border-radius: 30px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .dock-menu a:hover {
            color: var(--primary);
            background: rgba(30, 58, 95, 0.06);
        }
        .dock-menu a.active {
            color: var(--text-invert);
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(30, 58, 95, 0.25);
        }
        .dock-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .dock-cta .btn {
            padding: 9px 22px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
        }
        .dock-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(30, 58, 95, 0.08);
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .dock-toggle:hover {
            background: rgba(30, 58, 95, 0.15);
        }

        /* ===== 通用按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 30px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            border: 2px solid transparent;
            transition: var(--transition);
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--text-invert);
            box-shadow: 0 6px 20px rgba(30, 58, 95, 0.28);
        }
        .btn-primary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(30, 58, 95, 0.35);
            color: #fff;
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 6px 20px rgba(201, 162, 75, 0.3);
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(201, 162, 75, 0.4);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(30, 58, 95, 0.2);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.7);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-lg {
            padding: 15px 38px;
            font-size: 16px;
        }
        .btn-block {
            width: 100%;
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            padding: 120px 0 80px;
            margin-top: -84px;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(18, 35, 58, 0.92) 0%, rgba(18, 35, 58, 0.75) 50%, rgba(18, 35, 58, 0.5) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
            color: #fff;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(8px);
            padding: 7px 16px;
            border-radius: 40px;
            margin-bottom: 22px;
            letter-spacing: 0.04em;
        }
        .hero-badge i {
            color: var(--accent);
        }
        .hero h1 {
            font-size: 46px;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 20px;
            letter-spacing: 0.01em;
            color: #fff;
        }
        .hero h1 span {
            color: var(--accent);
        }
        .hero p {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
            max-width: 600px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 84px 0;
        }
        .section-alt {
            background: var(--bg-card);
        }
        .section-dark {
            background: var(--bg-dark);
            color: #fff;
        }
        .section-head {
            max-width: 680px;
            margin: 0 auto 56px;
            text-align: center;
        }
        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.1em;
            margin-bottom: 10px;
        }
        .section-head h2 {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 14px;
        }
        .section-dark .section-head h2 {
            color: #fff;
        }
        .section-head p {
            font-size: 16px;
            color: var(--text-weak);
            line-height: 1.7;
        }
        .section-dark .section-head p {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== 特色卡片 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--accent);
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(201, 162, 75, 0.4);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            margin-bottom: 20px;
            background: rgba(30, 58, 95, 0.08);
            color: var(--primary);
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }
        .feature-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .feature-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-weak);
        }

        /* ===== 分类入口 ===== */
        .category-section {
            background: var(--bg-card);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .category-card {
            display: flex;
            align-items: center;
            gap: 32px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .category-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .category-card-img {
            flex: 0 0 300px;
            position: relative;
            min-height: 220px;
            overflow: hidden;
        }
        .category-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .category-card:hover .category-card-img img {
            transform: scale(1.04);
        }
        .category-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to right, transparent 60%, rgba(30, 58, 95, 0.3));
        }
        .category-card-body {
            flex: 1;
            padding: 36px 40px 36px 0;
        }
        .category-card-body h3 {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .category-card-body p {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .category-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }
        .tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(30, 58, 95, 0.06);
            padding: 4px 12px;
            border-radius: 20px;
            border: 1px solid rgba(30, 58, 95, 0.1);
        }

        /* ===== 最新信息 ===== */
        .latest-section {
            background: var(--bg-body);
        }
        .latest-grid {
            display: grid;
            grid-template-columns: 1fr 1.4fr;
            gap: 32px;
            align-items: stretch;
        }
        .latest-feature {
            background: var(--bg-dark);
            border-radius: var(--radius-lg);
            padding: 40px;
            color: #fff;
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            min-height: 360px;
            background-image: url('/assets/images/coverpic/cover-2.png');
            background-size: cover;
            background-position: center;
        }
        .latest-feature::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(18, 35, 58, 0.85) 0%, rgba(18, 35, 58, 0.3) 60%, rgba(18, 35, 58, 0) 100%);
        }
        .latest-feature-content {
            position: relative;
            z-index: 2;
        }
        .latest-feature .badge {
            background: var(--accent);
            color: #fff;
        }
        .latest-feature h3 {
            font-size: 26px;
            font-weight: 800;
            margin: 14px 0 10px;
            line-height: 1.35;
            color: #fff;
        }
        .latest-feature p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 20px;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            height: 100%;
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            padding: 20px 22px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .news-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
            border-color: rgba(30, 58, 95, 0.2);
        }
        .news-item-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(30, 58, 95, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 16px;
            margin-top: 4px;
        }
        .news-item-content {
            flex: 1;
        }
        .news-item-content h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 6px;
            transition: var(--transition);
        }
        .news-item:hover .news-item-content h4 {
            color: var(--primary);
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 12px;
            color: var(--text-weak);
        }
        .news-meta .badge {
            font-size: 11px;
            padding: 3px 10px;
        }
        .empty-tip {
            text-align: center;
            padding: 48px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--border);
            color: var(--text-weak);
            font-size: 15px;
        }

        /* ===== 徽章 ===== */
        .badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 30px;
            background: rgba(30, 58, 95, 0.08);
            color: var(--primary);
            letter-spacing: 0.02em;
            line-height: 1.5;
        }
        .badge-accent {
            background: rgba(201, 162, 75, 0.15);
            color: var(--accent-hover);
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
        }
        .stats-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            text-align: center;
            padding: 36px 24px;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }
        .stat-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }
        .stat-number {
            font-size: 42px;
            font-weight: 900;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 8px;
            font-variant-numeric: tabular-nums;
        }
        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            letter-spacing: 0.02em;
        }

        /* ===== 流程 ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .process-step {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            position: relative;
            transition: var(--transition);
        }
        .process-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .process-number {
            font-size: 14px;
            font-weight: 800;
            color: var(--accent);
            background: rgba(201, 162, 75, 0.12);
            display: inline-block;
            padding: 4px 14px;
            border-radius: 30px;
            margin-bottom: 18px;
            letter-spacing: 0.05em;
        }
        .process-step h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }
        .process-step p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
        }
        .process-step::after {
            content: '';
            position: absolute;
            top: 50%;
            right: -14px;
            width: 28px;
            height: 2px;
            background: rgba(201, 162, 75, 0.3);
            display: none;
        }
        @media (min-width: 1025px) {
            .process-step:not(:last-child)::after {
                display: block;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-card);
            border-top: 1px solid var(--border);
        }
        .faq-wrap {
            max-width: 840px;
            margin: 0 auto;
        }
        .accordion-item {
            background: var(--bg-body);
            border-radius: var(--radius-md) !important;
            border: 1px solid var(--border) !important;
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }
        .accordion-item:hover {
            border-color: rgba(30, 58, 95, 0.3) !important;
        }
        .accordion-title {
            font-size: 16px !important;
            font-weight: 600;
            color: var(--text-main) !important;
            padding: 20px 24px !important;
            background: var(--bg-card) !important;
            position: relative;
            border-bottom: 1px solid transparent !important;
            transition: var(--transition);
        }
        .accordion-title:hover {
            color: var(--primary) !important;
        }
        .accordion-title::after {
            content: '\f078' !important;
            font-family: "Font Awesome 6 Free" !important;
            font-weight: 900;
            position: absolute;
            right: 20px;
            top: 20px;
            font-size: 13px;
            color: var(--accent);
            transition: var(--transition);
        }
        .accordion-item.is-active .accordion-title::after {
            transform: rotate(180deg);
        }
        .accordion-content {
            background: var(--bg-body) !important;
            border-bottom: none !important;
            padding: 18px 24px !important;
            color: var(--text-weak);
            font-size: 14px;
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
            padding: 90px 0;
        }
        .cta-inner h2 {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 32px;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0d1a2c;
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 48px;
        }
        .footer-brand .logo {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            display: inline-block;
            letter-spacing: 0.02em;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            padding: 5px 0;
            transition: var(--transition);
            line-height: 1.6;
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 6px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom .tech-info {
            font-size: 12px;
            letter-spacing: 0.02em;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .latest-grid {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 38px;
            }
            .category-card {
                flex-direction: column;
            }
            .category-card-img {
                flex: none;
                width: 100%;
                min-height: 200px;
            }
            .category-card-body {
                padding: 28px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }
            .section-head h2 {
                font-size: 28px;
            }
            .dock-nav {
                padding: 10px 12px;
                border-radius: 28px;
            }
            .dock-menu {
                position: absolute;
                top: calc(100% + 10px);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(14px);
                border-radius: 20px;
                border: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                flex-direction: column;
                align-items: stretch;
                padding: 10px;
                display: none;
                z-index: 999;
            }
            .dock-menu.open {
                display: flex;
            }
            .dock-menu a {
                padding: 12px 18px;
                text-align: center;
                border-radius: 12px;
            }
            .dock-toggle {
                display: flex;
            }
            .dock-cta .btn {
                display: none;
            }
            .hero {
                padding: 100px 0 60px;
                margin-top: -70px;
                min-height: 480px;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero p {
                font-size: 15px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 26px;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .dock-logo a {
                font-size: 16px;
            }
            .dock-logo a i {
                font-size: 18px;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .latest-feature {
                padding: 28px 24px;
            }
            .latest-feature h3 {
                font-size: 20px;
            }
            .news-item {
                padding: 16px;
                flex-direction: column;
                gap: 10px;
            }
            .news-item-icon {
                display: none;
            }
            .cta-inner {
                padding: 60px 0;
            }
            .cta-inner h2 {
                font-size: 26px;
            }
            .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .cta-actions .btn {
                width: 100%;
            }
        }

        /* ===== 动画 ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .hero-content>* {
            animation: fadeInUp 0.8s ease forwards;
            opacity: 0;
        }
        .hero-content>*:nth-child(1) {
            animation-delay: 0.1s;
        }
        .hero-content>*:nth-child(2) {
            animation-delay: 0.2s;
        }
        .hero-content>*:nth-child(3) {
            animation-delay: 0.3s;
        }
        .hero-content>*:nth-child(4) {
            animation-delay: 0.4s;
        }

/* roulang page: category1 */
:root {
        --primary: #f4b23b;
        --primary-dark: #d99a1f;
        --primary-light: rgba(244, 178, 59, 0.15);
        --secondary: #1f6f78;
        --secondary-dark: #185a61;
        --bg-dark: #0d1f2e;
        --bg-deep: #081826;
        --bg-body: #f6f8fb;
        --bg-card: #ffffff;
        --text-main: #1c2b3a;
        --text-weak: #5b6b7b;
        --border: #e2e8f0;
        --radius-lg: 20px;
        --radius-md: 14px;
        --radius-sm: 10px;
        --shadow-sm: 0 2px 10px rgba(13, 31, 46, 0.06);
        --shadow-md: 0 8px 30px rgba(13, 31, 46, 0.10);
        --shadow-lg: 0 16px 48px rgba(13, 31, 46, 0.14);
        --space-section: 96px;
        --transition: all 0.3s ease;
    }
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        background-color: var(--bg-body);
        color: var(--text-main);
        line-height: 1.75;
        -webkit-font-smoothing: antialiased;
    }
    img {
        max-width: 100%;
        display: block;
    }
    a {
        text-decoration: none;
        color: inherit;
        transition: var(--transition);
    }
    ul {
        list-style: none;
    }
    button,
    input {
        font-family: inherit;
    }
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
    }
    ::selection {
        background: rgba(244, 178, 59, 0.3);
    }
    :focus-visible {
        outline: 3px solid rgba(244, 178, 59, 0.5);
        outline-offset: 2px;
    }

    /* ===== Dock 导航 ===== */
    .dock-nav-wrap {
        position: sticky;
        top: 16px;
        z-index: 100;
        padding: 0 20px;
    }
    .dock-nav {
        max-width: 1100px;
        margin: 0 auto;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        background: rgba(255, 255, 255, 0.88);
        -webkit-backdrop-filter: blur(16px);
        backdrop-filter: blur(16px);
        border: 1px solid rgba(255, 255, 255, 0.6);
        border-radius: 60px;
        padding: 10px 18px 10px 24px;
        box-shadow: var(--shadow-md);
    }
    .dock-logo a {
        font-size: 17px;
        font-weight: 800;
        letter-spacing: 0.02em;
        display: flex;
        align-items: center;
        gap: 8px;
        color: var(--text-main);
        white-space: nowrap;
    }
    .dock-logo i {
        color: var(--primary);
        font-size: 20px;
    }
    .dock-menu {
        display: flex;
        align-items: center;
        gap: 4px;
    }
    .dock-menu a {
        font-size: 15px;
        font-weight: 600;
        color: var(--text-weak);
        padding: 8px 18px;
        border-radius: 40px;
        transition: var(--transition);
        line-height: 1.4;
    }
    .dock-menu a:hover {
        color: var(--text-main);
        background: #f1f5f9;
    }
    .dock-menu a.active {
        color: var(--text-main);
        background: var(--primary-light);
        font-weight: 700;
    }
    .dock-cta {
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        font-size: 15px;
        font-weight: 700;
        border-radius: 50px;
        padding: 10px 22px;
        border: none;
        cursor: pointer;
        transition: var(--transition);
        line-height: 1.5;
        white-space: nowrap;
    }
    .btn-primary {
        background: linear-gradient(135deg, var(--primary), #f7c960);
        color: #1a1408;
        box-shadow: 0 4px 16px rgba(244, 178, 59, 0.35);
    }
    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 24px rgba(244, 178, 59, 0.45);
        color: #1a1408;
    }
    .btn-outline {
        background: transparent;
        border: 2px solid rgba(255, 255, 255, 0.7);
        color: #fff;
    }
    .btn-outline:hover {
        background: rgba(255, 255, 255, 0.12);
        border-color: #fff;
        color: #fff;
    }
    .btn-dark {
        background: var(--bg-dark);
        color: #fff;
    }
    .btn-dark:hover {
        background: var(--secondary);
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(31, 111, 120, 0.3);
    }
    .dock-toggle {
        display: none;
        background: transparent;
        border: none;
        font-size: 22px;
        color: var(--text-main);
        cursor: pointer;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        align-items: center;
        justify-content: center;
    }
    .dock-toggle:hover {
        background: #f1f5f9;
    }

    /* ===== 内页横幅 ===== */
    .page-hero {
        position: relative;
        background-color: var(--bg-dark);
        background-image: linear-gradient(135deg, rgba(13, 31, 46, 0.78), rgba(13, 31, 46, 0.92)), url('/assets/images/backpic/back-2.png');
        background-size: cover;
        background-position: center;
        padding: 120px 0 100px;
        color: #fff;
        margin-top: -70px;
        border-radius: 0 0 32px 32px;
        overflow: hidden;
    }
    .page-hero::after {
        content: '';
        position: absolute;
        right: -60px;
        top: -60px;
        width: 260px;
        height: 260px;
        background: radial-gradient(circle, rgba(244, 178, 59, 0.2), transparent 70%);
        border-radius: 50%;
        pointer-events: none;
    }
    .page-hero .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(255, 255, 255, 0.12);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 40px;
        padding: 6px 16px;
        font-size: 13px;
        font-weight: 600;
        color: #f0c96f;
        margin-bottom: 20px;
    }
    .page-hero h1 {
        font-size: 44px;
        font-weight: 800;
        line-height: 1.25;
        margin-bottom: 16px;
        letter-spacing: -0.01em;
    }
    .page-hero .hero-sub {
        font-size: 18px;
        color: rgba(255, 255, 255, 0.8);
        max-width: 680px;
        margin-bottom: 28px;
        line-height: 1.8;
    }
    .hero-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
    }
    .breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        color: rgba(255, 255, 255, 0.6);
        margin-top: 28px;
    }
    .breadcrumb a {
        color: rgba(255, 255, 255, 0.8);
    }
    .breadcrumb a:hover {
        color: var(--primary);
    }
    .breadcrumb i {
        font-size: 10px;
        opacity: 0.6;
    }

    /* ===== 板块通用 ===== */
    .section {
        padding: var(--space-section) 0;
    }
    .section-sm {
        padding: 60px 0;
    }
    .section-alt {
        background: #fff;
    }
    .section-tag {
        display: inline-block;
        font-size: 13px;
        font-weight: 700;
        letter-spacing: 0.06em;
        color: var(--primary-dark);
        background: var(--primary-light);
        padding: 6px 14px;
        border-radius: 40px;
        margin-bottom: 12px;
        text-transform: uppercase;
    }
    .section-title {
        font-size: 32px;
        line-height: 1.3;
        font-weight: 800;
        margin-bottom: 12px;
        color: var(--text-main);
    }
    .section-sub {
        font-size: 16px;
        color: var(--text-weak);
        max-width: 640px;
        line-height: 1.8;
        margin-bottom: 36px;
    }
    .text-center {
        text-align: center;
    }
    .text-center .section-sub {
        margin-left: auto;
        margin-right: auto;
    }

    /* ===== 卡片 ===== */
    .card-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 28px;
    }
    .card {
        background: var(--bg-card);
        border-radius: var(--radius-lg);
        border: 1px solid var(--border);
        box-shadow: var(--shadow-sm);
        overflow: hidden;
        transition: var(--transition);
        display: flex;
        flex-direction: column;
        height: 100%;
    }
    .card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-md);
        border-color: rgba(244, 178, 59, 0.4);
    }
    .card-cover {
        position: relative;
        overflow: hidden;
        aspect-ratio: 16 / 10;
        background: var(--bg-dark);
    }
    .card-cover img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.6s ease;
    }
    .card:hover .card-cover img {
        transform: scale(1.04);
    }
    .card-cover .badge {
        position: absolute;
        top: 14px;
        left: 14px;
    }
    .badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 12px;
        font-weight: 700;
        padding: 5px 12px;
        border-radius: 40px;
        background: rgba(255, 255, 255, 0.94);
        color: var(--text-main);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
        backdrop-filter: blur(4px);
    }
    .badge-primary {
        background: var(--primary);
        color: #1a1408;
    }
    .card-body {
        padding: 24px;
        display: flex;
        flex-direction: column;
        gap: 10px;
        flex: 1;
    }
    .card-body h3 {
        font-size: 19px;
        font-weight: 700;
        line-height: 1.4;
    }
    .card-body p {
        font-size: 14px;
        color: var(--text-weak);
        line-height: 1.7;
        flex-grow: 1;
    }
    .card-link {
        font-size: 14px;
        font-weight: 700;
        color: var(--secondary);
        display: inline-flex;
        align-items: center;
        gap: 6px;
        margin-top: 4px;
    }
    .card-link:hover {
        color: var(--primary-dark);
        gap: 10px;
    }
    .card-link i {
        font-size: 12px;
    }

    /* ===== 介绍图文块 ===== */
    .split-block {
        display: grid;
        grid-template-columns: 1.05fr 1fr;
        gap: 48px;
        align-items: center;
    }
    .split-media {
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-lg);
        position: relative;
    }
    .split-media img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        min-height: 340px;
    }
    .split-media::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, transparent 60%, rgba(13, 31, 46, 0.38));
        pointer-events: none;
    }
    .split-content .section-tag {
        margin-bottom: 16px;
    }
    .split-content h2 {
        font-size: 30px;
        font-weight: 800;
        line-height: 1.35;
        margin-bottom: 14px;
    }
    .split-content p {
        color: var(--text-weak);
        font-size: 15px;
        line-height: 1.85;
        margin-bottom: 16px;
    }
    .feature-list {
        margin-top: 16px;
        display: grid;
        gap: 12px;
    }
    .feature-list li {
        display: flex;
        align-items: flex-start;
        gap: 12px;
        font-size: 15px;
        color: var(--text-main);
        font-weight: 500;
    }
    .feature-list li i {
        color: var(--primary);
        margin-top: 4px;
        width: 20px;
        flex-shrink: 0;
        text-align: center;
    }

    /* ===== 内容列表 ===== */
    .content-list-wrap {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-sm);
        overflow: hidden;
    }
    .content-list-item {
        display: flex;
        align-items: center;
        gap: 20px;
        padding: 22px 28px;
        border-bottom: 1px solid var(--border);
        transition: background 0.2s;
    }
    .content-list-item:last-child {
        border-bottom: none;
    }
    .content-list-item:hover {
        background: #fafbfc;
    }
    .content-list-item .list-index {
        font-size: 22px;
        font-weight: 800;
        color: var(--primary);
        width: 48px;
        flex-shrink: 0;
        text-align: center;
        background: var(--primary-light);
        border-radius: 12px;
        padding: 6px 0;
    }
    .content-list-item .list-info {
        flex: 1;
        min-width: 0;
    }
    .content-list-item .list-info h3 {
        font-size: 17px;
        font-weight: 700;
        margin-bottom: 4px;
        line-height: 1.4;
    }
    .content-list-item .list-info p {
        font-size: 14px;
        color: var(--text-weak);
        line-height: 1.6;
    }
    .content-list-item .list-meta {
        display: flex;
        align-items: center;
        gap: 16px;
        font-size: 13px;
        color: var(--text-weak);
        flex-shrink: 0;
    }
    .content-list-item .list-meta span {
        display: inline-flex;
        align-items: center;
        gap: 4px;
    }
    .content-list-item .list-meta i {
        font-size: 12px;
        opacity: 0.7;
    }

    /* ===== 流程 ===== */
    .steps-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }
    .step-item {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 30px 24px;
        text-align: center;
        box-shadow: var(--shadow-sm);
        transition: var(--transition);
        position: relative;
        overflow: hidden;
    }
    .step-item:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-md);
    }
    .step-num {
        width: 48px;
        height: 48px;
        border-radius: 16px;
        background: linear-gradient(135deg, var(--primary), #f7c960);
        color: #1a1408;
        font-size: 20px;
        font-weight: 800;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 18px;
        box-shadow: 0 6px 16px rgba(244, 178, 59, 0.3);
    }
    .step-item h3 {
        font-size: 17px;
        font-weight: 700;
        margin-bottom: 8px;
    }
    .step-item p {
        font-size: 14px;
        color: var(--text-weak);
        line-height: 1.7;
    }

    /* ===== 高亮数据条 ===== */
    .stats-band {
        background: linear-gradient(135deg, var(--bg-dark), #132b3d);
        color: #fff;
        border-radius: 28px;
        padding: 56px 40px;
        margin: 64px 0;
        position: relative;
        overflow: hidden;
    }
    .stats-band::before {
        content: '';
        position: absolute;
        right: -40px;
        bottom: -60px;
        width: 260px;
        height: 260px;
        border-radius: 50%;
        background: radial-gradient(circle, rgba(244, 178, 59, 0.16), transparent 70%);
    }
    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 28px;
        position: relative;
        z-index: 1;
    }
    .stat-item {
        text-align: center;
    }
    .stat-num {
        font-size: 38px;
        font-weight: 800;
        color: var(--primary);
        line-height: 1.2;
        margin-bottom: 4px;
    }
    .stat-label {
        font-size: 15px;
        color: rgba(255, 255, 255, 0.75);
    }

    /* ===== FAQ ===== */
    .faq-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    .faq-item {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        padding: 24px 28px;
        transition: var(--transition);
    }
    .faq-item:hover {
        border-color: rgba(244, 178, 59, 0.5);
        box-shadow: var(--shadow-sm);
    }
    .faq-item h3 {
        font-size: 16px;
        font-weight: 700;
        margin-bottom: 8px;
        display: flex;
        align-items: flex-start;
        gap: 10px;
    }
    .faq-item h3 i {
        color: var(--primary);
        margin-top: 4px;
        font-size: 14px;
        flex-shrink: 0;
    }
    .faq-item p {
        font-size: 14px;
        color: var(--text-weak);
        line-height: 1.75;
        padding-left: 24px;
    }

    /* ===== CTA ===== */
    .cta-section {
        background: var(--bg-dark);
        border-radius: 32px;
        padding: 64px 48px;
        text-align: center;
        color: #fff;
        position: relative;
        overflow: hidden;
        background-image: url('/assets/images/backpic/back-3.png');
        background-size: cover;
        background-position: center;
    }
    .cta-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: rgba(13, 31, 46, 0.72);
    }
    .cta-section h2 {
        font-size: 32px;
        font-weight: 800;
        margin-bottom: 12px;
        position: relative;
    }
    .cta-section p {
        font-size: 16px;
        color: rgba(255, 255, 255, 0.8);
        max-width: 520px;
        margin: 0 auto 28px;
        position: relative;
    }
    .cta-section .hero-actions {
        justify-content: center;
        position: relative;
    }

    /* ===== 页脚 ===== */
    .site-footer {
        background: var(--bg-deep);
        color: rgba(255, 255, 255, 0.7);
        padding: 56px 0 0;
        margin-top: 96px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr;
        gap: 40px;
        padding-bottom: 40px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-brand .logo {
        color: #fff;
        font-size: 19px;
        font-weight: 800;
        display: flex;
        align-items: center;
        margin-bottom: 14px;
    }
    .footer-brand p {
        font-size: 14px;
        line-height: 1.8;
        color: rgba(255, 255, 255, 0.5);
        max-width: 340px;
    }
    .footer-col h4 {
        color: #fff;
        font-size: 15px;
        font-weight: 700;
        margin-bottom: 16px;
        letter-spacing: 0.04em;
    }
    .footer-col a {
        display: block;
        font-size: 14px;
        color: rgba(255, 255, 255, 0.55);
        padding: 4px 0;
        line-height: 1.8;
    }
    .footer-col a:hover {
        color: var(--primary);
        padding-left: 4px;
    }
    .footer-bottom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        padding: 22px 0;
        font-size: 13px;
        color: rgba(255, 255, 255, 0.4);
        flex-wrap: wrap;
    }
    .footer-bottom .tech-info {
        color: rgba(255, 255, 255, 0.3);
        font-size: 12px;
    }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
        .card-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .steps-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .stats-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .split-block {
            grid-template-columns: 1fr;
            gap: 32px;
        }
        .page-hero h1 {
            font-size: 36px;
        }
        .section-title {
            font-size: 28px;
        }
        .content-list-item {
            flex-wrap: wrap;
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
        }
    }
    @media (max-width: 768px) {
        :root {
            --space-section: 64px;
        }
        .dock-nav-wrap {
            top: 12px;
            padding: 0 12px;
        }
        .dock-nav {
            padding: 8px 10px 8px 16px;
        }
        .dock-menu {
            display: none;
            position: absolute;
            top: calc(100% + 10px);
            left: 12px;
            right: 12px;
            background: rgba(255, 255, 255, 0.97);
            -webkit-backdrop-filter: blur(16px);
            backdrop-filter: blur(16px);
            border-radius: 20px;
            padding: 16px;
            flex-direction: column;
            gap: 4px;
            box-shadow: var(--shadow-lg);
            border: 1px solid rgba(255, 255, 255, 0.7);
            align-items: stretch;
        }
        .dock-menu.open {
            display: flex;
        }
        .dock-menu a {
            padding: 12px 20px;
            border-radius: 12px;
            text-align: center;
        }
        .dock-cta .btn {
            display: none;
        }
        .dock-toggle {
            display: flex;
        }
        .page-hero {
            padding: 100px 0 72px;
            margin-top: -56px;
            border-radius: 0 0 24px 24px;
        }
        .page-hero h1 {
            font-size: 30px;
        }
        .hero-sub {
            font-size: 16px;
        }
        .card-grid {
            grid-template-columns: 1fr;
        }
        .faq-grid {
            grid-template-columns: 1fr;
        }
        .steps-grid {
            grid-template-columns: 1fr;
        }
        .stats-grid {
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .section-title {
            font-size: 26px;
        }
        .split-media img {
            min-height: 240px;
        }
        .stats-band {
            padding: 40px 24px;
        }
        .cta-section {
            padding: 44px 24px;
            border-radius: 24px;
        }
        .cta-section h2 {
            font-size: 26px;
        }
        .content-list-item {
            padding: 18px 20px;
            flex-direction: row;
            flex-wrap: nowrap;
        }
        .content-list-item .list-meta {
            display: none;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 28px;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
        .hero-actions .btn {
            font-size: 14px;
            padding: 9px 18px;
        }
    }
    @media (max-width: 520px) {
        .dock-logo a {
            font-size: 14px;
        }
        .dock-nav {
            gap: 8px;
        }
        .page-hero {
            margin-top: -48px;
        }
        .page-hero h1 {
            font-size: 25px;
        }
        .hero-actions {
            flex-direction: column;
        }
        .hero-actions .btn {
            width: 100%;
        }
        .stats-grid {
            grid-template-columns: 1fr;
        }
        .footer-grid {
            grid-template-columns: 1fr;
        }
        .stat-num {
            font-size: 30px;
        }
        .content-list-item {
            flex-direction: column;
            text-align: left;
            gap: 10px;
        }
        .content-list-item .list-index {
            width: auto;
            display: inline-block;
            padding: 4px 16px;
            font-size: 18px;
        }
    }

/* roulang page: article */
:root {
    --primary: #1a3d6d;
    --primary-light: #2a5d9a;
    --accent: #f59e0b;
    --accent-light: #fbbf24;
    --bg: #f5f7fb;
    --bg-dark: #0f1e32;
    --text: #1e2a3a;
    --text-muted: #6b7a90;
    --border: #e6eaf2;
    --card-bg: #ffffff;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 8px 30px rgba(15, 30, 50, 0.08);
    --shadow-hover: 0 16px 40px rgba(15, 30, 50, 0.14);
    --transition: all 0.3s ease;
    --container: 1200px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
    list-style: none;
}

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

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

@media screen and (max-width: 639px) {
    .container {
        padding: 0 18px;
    }
}

/* ---------- 导航 ---------- */
.dock-nav-wrap {
    position: fixed;
    top: 16px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    width: min(96%, 1120px);
    padding: 0 16px;
    pointer-events: none;
}

.dock-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid rgba(230, 234, 242, 0.85);
    border-radius: 56px;
    padding: 10px 20px 10px 24px;
    box-shadow: 0 8px 32px rgba(15, 30, 50, 0.10);
    pointer-events: auto;
    transition: var(--transition);
}

.dock-nav:hover {
    box-shadow: 0 12px 36px rgba(15, 30, 50, 0.14);
}

.dock-logo a {
    font-size: 18px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: 0.5px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.dock-logo i {
    font-size: 22px;
    color: var(--accent);
    background: rgba(245, 158, 11, 0.15);
    border-radius: 50%;
    width: 34px;
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.dock-menu {
    display: flex;
    align-items: center;
    gap: 6px;
}

.dock-menu a {
    padding: 8px 18px;
    border-radius: 40px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    transition: var(--transition);
}

.dock-menu a:hover {
    color: var(--primary);
    background: rgba(26, 61, 109, 0.06);
}

.dock-menu a.active {
    color: var(--primary);
    background: rgba(26, 61, 109, 0.08);
    font-weight: 700;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 40px;
    padding: 10px 22px;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.4;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
}

.btn i {
    font-size: 13px;
    transition: transform 0.3s ease;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(26, 61, 109, 0.3);
}

.btn-primary:hover {
    background: #153355;
    box-shadow: 0 8px 24px rgba(26, 61, 109, 0.35);
    transform: translateY(-2px);
}

.btn-primary:hover i {
    transform: translateX(3px);
}

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

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

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

.btn-light:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
}

.btn-solid {
    background: var(--accent);
    color: var(--bg-dark);
    border-color: var(--accent);
}

.btn-solid:hover {
    background: #e8950a;
    transform: translateY(-2px);
}

.dock-toggle {
    display: none;
    background: transparent;
    color: var(--primary);
    font-size: 18px;
    padding: 8px 12px;
    border-radius: 40px;
    cursor: pointer;
    transition: var(--transition);
}

.dock-toggle:hover {
    background: rgba(26, 61, 109, 0.08);
}

/* ---------- 文章 Hero ---------- */
.article-hero {
    position: relative;
    padding: 152px 0 64px;
    background: linear-gradient(135deg, rgba(15, 30, 50, 0.97), rgba(26, 61, 109, 0.92)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    color: #fff;
    overflow: hidden;
}

.article-hero::after {
    content: '';
    position: absolute;
    bottom: -60px;
    right: -40px;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: rgba(245, 158, 11, 0.08);
    pointer-events: none;
}

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 16px;
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.85);
    transition: var(--transition);
}

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

.breadcrumb span {
    color: rgba(255, 255, 255, 0.45);
}

.article-hero h1 {
    font-size: 36px;
    line-height: 1.3;
    font-weight: 800;
    max-width: 900px;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 4px 14px;
    border-radius: 30px;
    backdrop-filter: blur(8px);
}

.meta-item i {
    color: var(--accent);
    font-size: 13px;
}

/* ---------- 正文 + 侧边栏 ---------- */
.article-content {
    padding: 56px 0 72px;
    position: relative;
}

.article-layout {
    align-items: flex-start;
}

.article-main {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 44px;
    border: 1px solid rgba(230, 234, 242, 0.7);
}

.article-body {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text);
}

.article-body h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    margin: 32px 0 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(26, 61, 109, 0.08);
}

.article-body h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    margin: 24px 0 12px;
}

.article-body p {
    margin: 16px 0;
    color: #3d4a5c;
}

.article-body a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.article-body a:hover {
    color: var(--accent);
}

.article-body img {
    border-radius: 12px;
    margin: 24px 0;
    box-shadow: var(--shadow);
}

.article-body ul,
.article-body ol {
    margin: 16px 0;
    padding-left: 24px;
}

.article-body ul {
    list-style: disc;
}

.article-body ol {
    list-style: decimal;
}

.article-body ul li,
.article-body ol li {
    margin: 8px 0;
    line-height: 1.8;
    color: #3d4a5c;
}

.article-body blockquote {
    padding: 16px 24px;
    border-left: 4px solid var(--accent);
    background: rgba(245, 158, 11, 0.06);
    border-radius: 0 10px 10px 0;
    margin: 24px 0;
    font-style: italic;
    color: #5a6675;
}

.article-tags {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.tag-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: rgba(26, 61, 109, 0.06);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    padding: 5px 14px;
    border-radius: 30px;
    transition: var(--transition);
}

.tag:hover {
    background: rgba(26, 61, 109, 0.12);
    transform: translateY(-1px);
}

.article-share {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    font-size: 14px;
    color: var(--text-muted);
}

.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(26, 61, 109, 0.06);
    color: var(--primary);
    font-size: 15px;
    transition: var(--transition);
}

.share-btn:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-2px);
}

.article-empty {
    text-align: center;
    padding: 60px 20px;
}

.article-empty i {
    font-size: 52px;
    color: var(--accent);
    margin-bottom: 20px;
    display: inline-block;
}

.article-empty h2 {
    font-size: 28px;
    color: var(--primary);
    margin-bottom: 12px;
}

.article-empty p {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 24px;
}

/* ---------- 侧边栏 ---------- */
.article-sidebar {
    position: sticky;
    top: 96px;
}

.sidebar-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
    margin-bottom: 20px;
    border: 1px solid rgba(230, 234, 242, 0.7);
    transition: var(--transition);
}

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

.sidebar-card h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(245, 158, 11, 0.3);
    position: relative;
}

.sidebar-links li {
    margin-bottom: 4px;
}

.sidebar-links a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    background: transparent;
    transition: var(--transition);
}

.sidebar-links a::after {
    content: '\f105';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 12px;
    color: rgba(107, 122, 144, 0.5);
    transition: var(--transition);
}

.sidebar-links a:hover {
    background: rgba(26, 61, 109, 0.06);
    color: var(--primary);
    padding-left: 18px;
}

.sidebar-links a:hover::after {
    color: var(--accent);
    transform: translateX(3px);
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.sidebar-card-pic img {
    border-radius: 12px;
    margin-bottom: 12px;
}

.sidebar-card-pic p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
    text-align: center;
}

.sidebar-card-pic .tag {
    margin-bottom: 4px;
}

/* ---------- 相关推荐 ---------- */
.related-section {
    padding: 72px 0;
    background: linear-gradient(180deg, var(--bg) 0%, #edf0f6 100%);
}

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-header h2 {
    font-size: 30px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.section-header p {
    font-size: 15px;
    color: var(--text-muted);
}

.related-grid {
    margin-top: 8px;
}

.related-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid rgba(230, 234, 242, 0.7);
    display: block;
    margin-bottom: 24px;
    transition: var(--transition);
    height: 100%;
}

.related-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(245, 158, 11, 0.3);
}

.related-img {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
}

.related-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.related-card:hover .related-img img {
    transform: scale(1.05);
}

.related-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(15, 30, 50, 0.5) 100%);
    pointer-events: none;
}

.card-tag {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 2;
    background: rgba(255, 255, 255, 0.92);
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 30px;
    backdrop-filter: blur(6px);
}

.related-body {
    padding: 20px 22px 24px;
}

.related-body h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
    line-height: 1.5;
    transition: var(--transition);
}

.related-card:hover .related-body h3 {
    color: var(--primary);
}

.related-body p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ---------- 指南区 ---------- */
.guide-section {
    padding: 72px 0;
    background: var(--card-bg);
}

.guide-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
    max-width: 1080px;
    margin: 0 auto;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(245, 158, 11, 0.12);
    color: #b45309;
    font-size: 13px;
    font-weight: 700;
    padding: 5px 16px;
    border-radius: 30px;
    margin-bottom: 14px;
}

.guide-text h2 {
    font-size: 30px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.35;
    margin-bottom: 16px;
}

.guide-text p {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 20px;
}

.guide-list {
    margin-bottom: 24px;
}

.guide-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 0;
    font-size: 15px;
    color: var(--text);
}

.guide-list i {
    color: var(--accent);
    margin-top: 4px;
    font-size: 16px;
}

.guide-img img {
    border-radius: 20px;
    box-shadow: var(--shadow-hover);
    width: 100%;
    object-fit: cover;
}

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

.faq-list {
    max-width: 820px;
    margin: 0 auto;
}

.faq-item {
    background: var(--card-bg);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    margin-bottom: 14px;
    padding: 20px 28px;
    transition: var(--transition);
    cursor: pointer;
}

.faq-item:hover {
    border-color: rgba(245, 158, 11, 0.4);
    box-shadow: 0 4px 16px rgba(15, 30, 50, 0.05);
}

.faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
}

.faq-q i {
    font-size: 18px;
    color: var(--accent);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.faq-item.active .faq-q i {
    transform: rotate(45deg);
}

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.faq-a p {
    padding-top: 14px;
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.8;
}

/* ---------- CTA ---------- */
.cta-section {
    padding: 72px 0;
    background: linear-gradient(135deg, rgba(15, 30, 50, 0.98), rgba(26, 61, 109, 0.95)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    position: relative;
}

.cta-box {
    text-align: center;
    max-width: 680px;
    margin: 0 auto;
    padding: 48px 40px;
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(12px);
}

.cta-box h2 {
    font-size: 30px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 12px;
}

.cta-box p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 28px;
}

.cta-btns {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ---------- 页脚 ---------- */
.site-footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 0.8fr 0.8fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand .logo {
    font-size: 20px;
    font-weight: 800;
    color: #fff;
    display: inline-flex;
    align-items: center;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.55);
    max-width: 360px;
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
}

.footer-col a {
    display: block;
    padding: 6px 0;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--accent);
    transform: translateX(3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

.tech-info {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.25);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width: 900px) {
    .article-hero {
        padding: 136px 0 52px;
    }

    .article-hero h1 {
        font-size: 28px;
    }

    .article-main {
        padding: 32px;
    }

    .guide-wrap {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .guide-img img {
        max-height: 380px;
        width: 100%;
    }

    .footer-grid {
        grid-template-columns: 1fr 0.8fr;
        gap: 32px;
    }
}

@media screen and (max-width: 768px) {
    .dock-nav {
        flex-wrap: wrap;
        gap: 8px;
        border-radius: 28px;
        padding: 12px 16px;
    }

    .dock-logo {
        flex: 1;
    }

    .dock-menu {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 2px;
        padding-top: 10px;
        border-top: 1px solid rgba(230, 234, 242, 0.6);
    }

    .dock-menu.open {
        display: flex;
    }

    .dock-menu a {
        width: 100%;
        padding: 10px 16px;
        border-radius: 12px;
        text-align: center;
    }

    .dock-cta .btn-primary {
        display: none;
    }

    .dock-toggle {
        display: inline-flex;
    }

    .article-hero h1 {
        font-size: 24px;
    }

    .article-layout .article-main,
    .article-layout .article-sidebar {
        width: 100%;
    }

    .article-sidebar {
        position: static;
        margin-top: 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

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

@media screen and (max-width: 520px) {
    .article-hero {
        padding: 128px 0 44px;
    }

    .article-hero h1 {
        font-size: 22px;
        line-height: 1.4;
    }

    .article-meta {
        gap: 10px;
    }

    .meta-item {
        font-size: 13px;
        padding: 3px 12px;
    }

    .article-main {
        padding: 24px 18px;
        border-radius: 14px;
    }

    .article-body {
        font-size: 15px;
        line-height: 1.85;
    }

    .article-body h2 {
        font-size: 20px;
    }

    .cta-box {
        padding: 36px 24px;
    }

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