/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #D4A84B;
            --primary-dark: #B8922E;
            --primary-light: #E8C86A;
            --primary-gradient: linear-gradient(135deg, #D4A84B 0%, #E8C86A 50%, #D4A84B 100%);
            --bg-dark: #0A0A14;
            --bg-dark-alt: #0F0F1E;
            --bg-card: #12122A;
            --bg-card-hover: #1A1A3A;
            --bg-section: #0C0C18;
            --text-white: #FFFFFF;
            --text-light: #E8E8F0;
            --text-muted: #8888A8;
            --text-dark: #1A1A2E;
            --border-color: #2A2A4A;
            --border-light: #3A3A5A;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
            --shadow: 0 8px 32px rgba(0,0,0,0.3);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.4);
            --shadow-glow: 0 0 30px rgba(212,168,75,0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== 基础重置 ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-light);
            background: var(--bg-dark);
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover { color: var(--primary-light); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; color: var(--text-white); font-weight: 700; }
        h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
        h2 { font-size: clamp(1.6rem, 3.5vw, 2.6rem); }
        h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
        h4 { font-size: 1.15rem; }
        p { margin-bottom: 1rem; }
        p:last-child { margin-bottom: 0; }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container { padding: 0 16px; }
        }

        /* ===== 导航 ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 10, 20, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(42, 42, 74, 0.4);
            height: var(--header-height);
            transition: background var(--transition), border-color var(--transition);
        }
        .header.scrolled {
            background: rgba(10, 10, 20, 0.95);
            border-bottom-color: var(--border-color);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }
        .logo .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary-gradient);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--bg-dark);
            font-weight: 900;
            flex-shrink: 0;
        }
        .logo .logo-text {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav { display: flex; align-items: center; gap: 8px; }
        .nav a {
            padding: 8px 18px;
            border-radius: var(--radius);
            color: var(--text-light);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition);
            position: relative;
        }
        .nav a:hover {
            color: var(--text-white);
            background: rgba(212, 168, 75, 0.08);
        }
        .nav a.active {
            color: var(--primary);
            background: rgba(212, 168, 75, 0.12);
        }
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--primary-gradient);
            border-radius: 2px;
        }
        .nav-cta {
            background: var(--primary-gradient) !important;
            color: var(--text-dark) !important;
            font-weight: 700 !important;
            padding: 8px 24px !important;
            border-radius: var(--radius) !important;
            margin-left: 8px;
            box-shadow: 0 4px 16px rgba(212, 168, 75, 0.25);
        }
        .nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 24px rgba(212, 168, 75, 0.35);
        }
        .nav-cta.active {
            background: var(--primary-gradient) !important;
            color: var(--text-dark) !important;
        }
        .nav-cta.active::after { display: none; }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            background: none;
            border: none;
            z-index: 1001;
        }
        .menu-toggle span {
            display: block;
            width: 28px;
            height: 2px;
            background: var(--text-white);
            border-radius: 2px;
            transition: all var(--transition);
            transform-origin: center;
        }
        .menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
        .menu-toggle.active span:nth-child(2) { opacity: 0; }
        .menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

        @media (max-width: 768px) {
            .menu-toggle { display: flex; }
            .nav {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: rgba(12, 12, 24, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 100px 24px 40px;
                gap: 4px;
                transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                border-left: 1px solid var(--border-color);
                overflow-y: auto;
            }
            .nav.open { right: 0; }
            .nav a {
                width: 100%;
                padding: 14px 18px;
                font-size: 1.05rem;
                text-align: center;
            }
            .nav a.active::after { bottom: 6px; }
            .nav-cta {
                margin-left: 0;
                margin-top: 12px;
                text-align: center;
            }
            .nav-overlay {
                position: fixed;
                top: 0;
                left: 0;
                right: 0;
                bottom: 0;
                background: rgba(0,0,0,0.5);
                z-index: 999;
                opacity: 0;
                pointer-events: none;
                transition: opacity var(--transition);
            }
            .nav-overlay.show { opacity: 1; pointer-events: auto; }
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            position: relative;
            min-height: 90vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 120px 24px 80px;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10,10,20,0.3) 0%, rgba(10,10,20,0.85) 100%);
            z-index: 1;
        }
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center 40%, rgba(212,168,75,0.08) 0%, transparent 70%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 860px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(212, 168, 75, 0.12);
            border: 1px solid rgba(212, 168, 75, 0.25);
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--primary-light);
            margin-bottom: 24px;
            letter-spacing: 0.5px;
        }
        .hero-badge span {
            width: 6px;
            height: 6px;
            background: var(--primary);
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.3); }
        }
        .hero h1 {
            font-weight: 900;
            letter-spacing: -0.5px;
            margin-bottom: 20px;
            background: linear-gradient(180deg, #FFFFFF 0%, #E8E8F0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero h1 .highlight {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: clamp(1.05rem, 1.8vw, 1.25rem);
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }
        .btn-primary {
            background: var(--primary-gradient);
            color: var(--text-dark);
            box-shadow: 0 4px 20px rgba(212, 168, 75, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(212, 168, 75, 0.4);
            color: var(--text-dark);
        }
        .btn-secondary {
            background: rgba(255,255,255,0.06);
            color: var(--text-white);
            border: 1px solid rgba(255,255,255,0.12);
        }
        .btn-secondary:hover {
            background: rgba(255,255,255,0.1);
            color: var(--text-white);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 10px 22px;
            font-size: 0.9rem;
        }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 50px;
            padding-top: 40px;
            border-top: 1px solid rgba(255,255,255,0.06);
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat .num {
            font-size: 2rem;
            font-weight: 800;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-stat .label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .hero { min-height: 70vh; padding: 100px 16px 60px; }
            .hero-stats { gap: 24px; }
            .hero-stat .num { font-size: 1.6rem; }
        }
        @media (max-width: 520px) {
            .hero h1 { font-size: 1.8rem; }
            .hero-actions { flex-direction: column; width: 100%; }
            .hero-actions .btn { width: 100%; justify-content: center; }
            .hero-stats { flex-direction: column; gap: 16px; }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-dark-alt);
        }
        .section-card {
            background: var(--bg-section);
        }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-header h2 {
            margin-bottom: 16px;
            position: relative;
            display: inline-block;
        }
        .section-header h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 3px;
            background: var(--primary-gradient);
            border-radius: 3px;
            margin: 16px auto 0;
        }
        .section-header p {
            color: var(--text-muted);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto;
        }
        .section-subtitle {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        @media (max-width: 768px) {
            .section { padding: 56px 0; }
            .section-header { margin-bottom: 40px; }
        }

        /* ===== 核心优势 / 数据板块 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary-gradient);
            opacity: 0;
            transition: opacity var(--transition);
        }
        .feature-card:hover {
            border-color: var(--primary-dark);
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow);
            background: var(--bg-card-hover);
        }
        .feature-card:hover::before { opacity: 1; }
        .feature-icon {
            width: 52px;
            height: 52px;
            background: rgba(212, 168, 75, 0.1);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
            color: var(--primary);
        }
        .feature-card h3 { margin-bottom: 10px; }
        .feature-card p { color: var(--text-muted); font-size: 0.95rem; }

        @media (max-width: 1024px) {
            .features-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 640px) {
            .features-grid { grid-template-columns: 1fr; }
        }

        /* ===== 分类入口 ===== */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            aspect-ratio: 4 / 3;
            display: flex;
            align-items: flex-end;
        }
        .category-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .category-card:hover img { transform: scale(1.05); }
        .category-card .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(10,10,20,0.9) 0%, rgba(10,10,20,0.2) 70%, transparent 100%);
            z-index: 1;
        }
        .category-card .info {
            position: relative;
            z-index: 2;
            padding: 28px;
            width: 100%;
        }
        .category-card .info h3 {
            color: var(--text-white);
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .category-card .info p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 0;
        }
        .category-card .tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(212, 168, 75, 0.15);
            color: var(--primary-light);
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 10px;
        }

        @media (max-width: 1024px) {
            .categories-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 640px) {
            .categories-grid { grid-template-columns: 1fr; }
        }

        /* ===== 最新资讯 / CMS 列表 ===== */
        .posts-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .post-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
        }
        .post-card:hover {
            border-color: var(--primary-dark);
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow);
        }
        .post-card .thumb {
            aspect-ratio: 16 / 9;
            background: var(--bg-dark-alt);
            position: relative;
            overflow: hidden;
        }
        .post-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .post-card:hover .thumb img { transform: scale(1.05); }
        .post-card .thumb .cat-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 14px;
            background: rgba(212, 168, 75, 0.9);
            color: var(--text-dark);
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 700;
            z-index: 2;
        }
        .post-card .body {
            padding: 22px 24px 24px;
        }
        .post-card .body .meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .post-card .body .meta .date {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .post-card .body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-card .body h3 a {
            color: var(--text-white);
            transition: color var(--transition);
        }
        .post-card .body h3 a:hover { color: var(--primary); }
        .post-card .body p {
            color: var(--text-muted);
            font-size: 0.9rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .empty-posts {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            color: var(--text-muted);
            font-size: 1.05rem;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--border-color);
        }

        @media (max-width: 1024px) {
            .posts-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 640px) {
            .posts-grid { grid-template-columns: 1fr; }
        }

        /* ===== 服务流程 ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .process-step {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            transition: all var(--transition);
            position: relative;
        }
        .process-step:hover {
            border-color: var(--primary-dark);
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow);
        }
        .process-step .step-num {
            width: 56px;
            height: 56px;
            margin: 0 auto 20px;
            background: rgba(212, 168, 75, 0.1);
            border: 2px solid rgba(212, 168, 75, 0.2);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--primary);
            transition: all var(--transition);
        }
        .process-step:hover .step-num {
            background: var(--primary-gradient);
            color: var(--text-dark);
            border-color: transparent;
        }
        .process-step h4 {
            margin-bottom: 8px;
            font-size: 1.05rem;
        }
        .process-step p {
            color: var(--text-muted);
            font-size: 0.88rem;
            margin-bottom: 0;
        }
        .process-arrow {
            display: none;
        }

        @media (max-width: 1024px) {
            .process-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 640px) {
            .process-grid { grid-template-columns: 1fr; }
        }

        /* ===== 特色亮点（图文区块） ===== */
        .showcase {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .showcase.reverse {
            direction: rtl;
        }
        .showcase.reverse > * {
            direction: ltr;
        }
        .showcase-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            aspect-ratio: 4 / 3;
            background: var(--bg-card);
        }
        .showcase-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .showcase-image:hover img { transform: scale(1.03); }
        .showcase-image .badge-float {
            position: absolute;
            bottom: 20px;
            right: 20px;
            padding: 8px 18px;
            background: rgba(10, 10, 20, 0.85);
            backdrop-filter: blur(10px);
            border-radius: var(--radius);
            color: var(--primary-light);
            font-size: 0.85rem;
            font-weight: 600;
            border: 1px solid rgba(212, 168, 75, 0.2);
        }
        .showcase-text h3 {
            font-size: clamp(1.4rem, 2.5vw, 1.8rem);
            margin-bottom: 16px;
        }
        .showcase-text p {
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .showcase-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .showcase-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: var(--text-light);
            font-size: 0.95rem;
        }
        .showcase-list li .check {
            width: 22px;
            height: 22px;
            background: rgba(212, 168, 75, 0.15);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 0.75rem;
            flex-shrink: 0;
            margin-top: 2px;
        }

        @media (max-width: 900px) {
            .showcase { grid-template-columns: 1fr; gap: 32px; }
            .showcase.reverse { direction: ltr; }
            .showcase.reverse > * { direction: ltr; }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-dark);
        }
        .faq-item.open {
            border-color: var(--primary-dark);
        }
        .faq-question {
            width: 100%;
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            text-align: left;
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: color var(--transition);
        }
        .faq-question:hover { color: var(--primary); }
        .faq-question .icon {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(212, 168, 75, 0.08);
            color: var(--primary);
            transition: all var(--transition);
            font-size: 0.9rem;
        }
        .faq-item.open .faq-question .icon {
            background: var(--primary-gradient);
            color: var(--text-dark);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-answer p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(212,168,75,0.05) 0%, rgba(10,10,20,0.95) 100%),
                        url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(10, 10, 20, 0.7);
            z-index: 1;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 80px 24px;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            margin-bottom: 16px;
        }
        .cta-content p {
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-bottom: 32px;
        }
        .cta-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        @media (max-width: 520px) {
            .cta-content { padding: 56px 16px; }
            .cta-actions { flex-direction: column; width: 100%; }
            .cta-actions .btn { width: 100%; justify-content: center; }
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark-alt);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border-color);
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.92rem;
            max-width: 360px;
            line-height: 1.8;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text-white);
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 0;
        }
        .footer-bottom .links {
            display: flex;
            gap: 20px;
        }
        .footer-bottom .links a {
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .footer-bottom .links a:hover { color: var(--primary); }

        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media (max-width: 640px) {
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .footer-bottom .links { justify-content: center; }
        }

        /* ===== 移动端遮罩 ===== */
        .nav-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0,0,0,0.5);
            z-index: 999;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition);
        }
        .nav-overlay.show { opacity: 1; pointer-events: auto; }

        /* ===== 滚动动画 ===== */
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 分隔线装饰 ===== */
        .divider {
            width: 60px;
            height: 3px;
            background: var(--primary-gradient);
            border-radius: 3px;
            margin: 20px auto;
        }

        /* ===== 其他工具类 ===== */
        .text-center { text-align: center; }
        .text-primary { color: var(--primary); }
        .mt-12 { margin-top: 12px; }
        .mb-12 { margin-bottom: 12px; }
        .mt-24 { margin-top: 24px; }
        .mb-24 { margin-bottom: 24px; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a4a;
            --primary-light: #2c4a7c;
            --primary-dark: #0f1a2e;
            --secondary: #c8a25e;
            --secondary-light: #e0c28a;
            --secondary-dark: #a8843e;
            --accent: #d4a84b;
            --bg-light: #f8f6f2;
            --bg-dark: #1a1a2e;
            --bg-card: #ffffff;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5e;
            --text-light: #8a8a9e;
            --text-inverse: #ffffff;
            --border: #e8e4de;
            --border-light: #f0ece6;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 4px 24px rgba(26, 42, 74, 0.08);
            --shadow-lg: 0 12px 48px rgba(26, 42, 74, 0.14);
            --shadow-hover: 0 16px 56px rgba(26, 42, 74, 0.20);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --container: 1200px;
            --nav-height: 76px;
            --spacing-section: 100px;
            --spacing-block: 64px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            color: var(--text-primary);
            background: var(--bg-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--secondary);
        }
        a:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 4px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
            background: none;
        }
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-primary);
        }

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

        /* ===== Header & Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--nav-height);
            background: rgba(26, 42, 74, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(200, 162, 94, 0.15);
            z-index: 1000;
            transition: var(--transition);
        }
        .header.scrolled {
            background: rgba(15, 26, 46, 0.96);
            box-shadow: 0 4px 32px rgba(0, 0, 0, 0.3);
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-inverse);
            letter-spacing: 0.5px;
            transition: var(--transition);
        }
        .logo:hover {
            color: var(--secondary-light);
            transform: scale(1.02);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            border-radius: 10px;
            font-size: 1.2rem;
            font-weight: 900;
            color: var(--primary-dark);
            box-shadow: 0 4px 12px rgba(200, 162, 94, 0.3);
        }
        .logo-text {
            font-size: 1.25rem;
            background: linear-gradient(135deg, #f0e6d0, var(--secondary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav a {
            position: relative;
            padding: 8px 18px;
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.8);
            border-radius: 8px;
            transition: var(--transition);
            letter-spacing: 0.3px;
        }
        .nav a:hover {
            color: var(--text-inverse);
            background: rgba(200, 162, 94, 0.12);
        }
        .nav a.active {
            color: var(--text-inverse);
            background: rgba(200, 162, 94, 0.18);
        }
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--secondary);
            border-radius: 2px;
        }
        .nav a.nav-cta {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            color: var(--primary-dark);
            font-weight: 700;
            padding: 10px 28px;
            border-radius: 30px;
            box-shadow: 0 4px 16px rgba(200, 162, 94, 0.3);
            margin-left: 8px;
        }
        .nav a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(200, 162, 94, 0.45);
            background: linear-gradient(135deg, var(--secondary-light), var(--secondary));
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: none;
            border: none;
            cursor: pointer;
        }
        .menu-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-inverse);
            border-radius: 2px;
            transition: var(--transition);
        }
        .menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Hero / Banner ===== */
        .page-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 120px 24px 80px;
            background: var(--primary-dark);
            overflow: hidden;
        }
        .page-hero .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.5;
            transform: scale(1.05);
            transition: transform 8s ease;
        }
        .page-hero:hover .hero-bg {
            transform: scale(1.0);
        }
        .page-hero .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 26, 46, 0.88) 0%, rgba(26, 42, 74, 0.72) 50%, rgba(15, 26, 46, 0.88) 100%);
            z-index: 1;
        }
        .page-hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            animation: fadeUp 0.8s ease forwards;
        }
        .page-hero .hero-badge {
            display: inline-block;
            padding: 6px 24px;
            background: rgba(200, 162, 94, 0.2);
            border: 1px solid rgba(200, 162, 94, 0.3);
            border-radius: 30px;
            color: var(--secondary-light);
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 20px;
            backdrop-filter: blur(8px);
        }
        .page-hero h1 {
            font-size: 3.2rem;
            font-weight: 900;
            color: var(--text-inverse);
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: 2px;
        }
        .page-hero h1 span {
            color: var(--secondary-light);
        }
        .page-hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .page-hero .hero-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 30px;
            transition: var(--transition);
            letter-spacing: 0.5px;
            border: none;
            cursor: pointer;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            color: var(--primary-dark);
            box-shadow: 0 4px 20px rgba(200, 162, 94, 0.35);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 36px rgba(200, 162, 94, 0.5);
            background: linear-gradient(135deg, var(--secondary-light), var(--secondary));
        }
        .btn-outline {
            background: transparent;
            border: 2px solid rgba(200, 162, 94, 0.5);
            color: var(--text-inverse);
        }
        .btn-outline:hover {
            border-color: var(--secondary);
            background: rgba(200, 162, 94, 0.1);
            transform: translateY(-3px);
            color: var(--secondary-light);
        }
        .btn-sm {
            padding: 10px 24px;
            font-size: 0.9rem;
        }

        /* ===== Section ===== */
        .section {
            padding: var(--spacing-section) 0;
            position: relative;
        }
        .section-alt {
            background: var(--bg-card);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-inverse);
        }
        .section-dark h2,
        .section-dark h3,
        .section-dark h4 {
            color: var(--text-inverse);
        }
        .section-dark .text-muted {
            color: rgba(255, 255, 255, 0.65);
        }

        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-header .label {
            display: inline-block;
            padding: 4px 20px;
            background: rgba(200, 162, 94, 0.12);
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--secondary-dark);
            letter-spacing: 1px;
            margin-bottom: 16px;
        }
        .section-header h2 {
            font-size: 2.4rem;
            font-weight: 800;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }
        .section-header h2 span {
            color: var(--secondary);
        }
        .section-header p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.8;
        }
        .section-dark .section-header .label {
            background: rgba(200, 162, 94, 0.15);
            color: var(--secondary-light);
        }
        .section-dark .section-header p {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== 分割线 ===== */
        .divider {
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--secondary), var(--secondary-dark));
            border-radius: 2px;
            margin: 16px auto 0;
        }
        .divider-left {
            margin: 16px 0 0;
        }

        /* ===== 卡片网格 ===== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
        }

        /* ===== 卡片 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(200, 162, 94, 0.2);
        }
        .card .card-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(200, 162, 94, 0.12), rgba(200, 162, 94, 0.05));
            font-size: 1.6rem;
            margin-bottom: 18px;
            color: var(--secondary);
        }
        .card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }
        .card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .card .card-tag {
            display: inline-block;
            padding: 2px 14px;
            background: rgba(200, 162, 94, 0.1);
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--secondary-dark);
            font-weight: 500;
            margin-bottom: 12px;
        }

        /* ===== 步骤/流程 ===== */
        .steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-item {
            text-align: center;
            padding: 32px 20px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius);
            border: 1px solid rgba(200, 162, 94, 0.08);
            transition: var(--transition);
            position: relative;
        }
        .step-item:hover {
            border-color: rgba(200, 162, 94, 0.2);
            background: rgba(255, 255, 255, 0.06);
            transform: translateY(-4px);
        }
        .step-item .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            color: var(--primary-dark);
            font-size: 1.2rem;
            font-weight: 900;
            margin-bottom: 16px;
        }
        .step-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-inverse);
        }
        .step-item p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.6;
        }

        /* ===== 统计数据 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 32px 16px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius);
            border: 1px solid rgba(200, 162, 94, 0.08);
            transition: var(--transition);
        }
        .stat-item:hover {
            border-color: rgba(200, 162, 94, 0.2);
            transform: translateY(-4px);
        }
        .stat-item .stat-number {
            font-size: 2.8rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--secondary-light), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-item .stat-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(200, 162, 94, 0.2);
        }
        .faq-item .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 28px;
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            transition: var(--transition);
            background: none;
            width: 100%;
            text-align: left;
            color: var(--text-primary);
            gap: 16px;
        }
        .faq-item .faq-q:hover {
            color: var(--secondary-dark);
        }
        .faq-item .faq-q .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(200, 162, 94, 0.1);
            color: var(--secondary);
            transition: var(--transition);
            font-size: 1.1rem;
        }
        .faq-item.open .faq-q .faq-icon {
            transform: rotate(45deg);
            background: var(--secondary);
            color: var(--primary-dark);
        }
        .faq-item .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 28px;
        }
        .faq-item.open .faq-a {
            max-height: 400px;
            padding: 0 28px 20px;
        }
        .faq-item .faq-a p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.12;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-inverse);
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .cta-section .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== 内容卡片（带图） ===== */
        .content-card {
            display: flex;
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .content-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(200, 162, 94, 0.15);
        }
        .content-card .card-img {
            width: 280px;
            min-height: 200px;
            flex-shrink: 0;
            object-fit: cover;
            border-radius: 0;
        }
        .content-card .card-body {
            padding: 28px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .content-card .card-body .tag {
            display: inline-block;
            padding: 2px 16px;
            background: rgba(200, 162, 94, 0.1);
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--secondary-dark);
            font-weight: 500;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .content-card .card-body h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .content-card .card-body p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .content-card .card-body .link-more {
            font-weight: 600;
            color: var(--secondary-dark);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .content-card .card-body .link-more:hover {
            gap: 12px;
            color: var(--primary);
        }

        /* ===== 图文区块 ===== */
        .text-image-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .text-image-block .text-content h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .text-image-block .text-content p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .text-image-block .text-content .features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-top: 20px;
        }
        .text-image-block .text-content .features li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-secondary);
        }
        .text-image-block .text-content .features li::before {
            content: '✦';
            color: var(--secondary);
            font-weight: 700;
            font-size: 1rem;
        }
        .text-image-block .image-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .text-image-block .image-wrap img {
            width: 100%;
            height: 400px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            transition: transform 0.6s ease;
        }
        .text-image-block .image-wrap:hover img {
            transform: scale(1.03);
        }
        .text-image-block .image-wrap .image-badge {
            position: absolute;
            bottom: 20px;
            left: 20px;
            padding: 8px 20px;
            background: rgba(15, 26, 46, 0.8);
            backdrop-filter: blur(8px);
            border-radius: 30px;
            color: var(--secondary-light);
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid rgba(200, 162, 94, 0.2);
        }

        /* ===== 标签/徽章 ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .badge-gold {
            background: rgba(200, 162, 94, 0.12);
            color: var(--secondary-dark);
        }
        .badge-dark {
            background: rgba(26, 42, 74, 0.08);
            color: var(--primary);
        }

        /* ===== 分隔条 ===== */
        .sep-line {
            width: 100%;
            height: 1px;
            background: var(--border);
            margin: 40px 0;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 0;
            border-top: 1px solid rgba(200, 162, 94, 0.1);
        }
        .footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            max-width: 320px;
        }
        .footer .footer-col h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-inverse);
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }
        .footer .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer .footer-col ul li a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }
        .footer .footer-col ul li a:hover {
            color: var(--secondary-light);
            padding-left: 4px;
        }
        .footer .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 24px 0;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer .footer-bottom p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer .footer-bottom .links {
            display: flex;
            gap: 20px;
        }
        .footer .footer-bottom .links a {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
            transition: var(--transition);
        }
        .footer .footer-bottom .links a:hover {
            color: var(--secondary-light);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            :root {
                --spacing-section: 70px;
                --spacing-block: 48px;
            }
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .page-hero h1 {
                font-size: 2.6rem;
            }
            .section-header h2 {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 64px;
                --spacing-section: 56px;
            }
            .nav {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                flex-direction: column;
                background: rgba(15, 26, 46, 0.98);
                backdrop-filter: blur(16px);
                padding: 16px 24px;
                gap: 4px;
                border-bottom: 1px solid rgba(200, 162, 94, 0.1);
            }
            .nav.open {
                display: flex;
            }
            .nav a {
                padding: 14px 18px;
                width: 100%;
                text-align: center;
                font-size: 1.05rem;
            }
            .nav a.active::after {
                display: none;
            }
            .nav a.nav-cta {
                margin-left: 0;
                margin-top: 8px;
                text-align: center;
                justify-content: center;
            }
            .menu-toggle {
                display: flex;
            }
            .page-hero {
                min-height: 340px;
                padding: 100px 20px 60px;
            }
            .page-hero h1 {
                font-size: 2rem;
            }
            .page-hero p {
                font-size: 1rem;
            }
            .grid-3 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .grid-2 {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .grid-4 {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .steps {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .text-image-block {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .text-image-block .image-wrap img {
                height: 260px;
            }
            .content-card {
                flex-direction: column;
            }
            .content-card .card-img {
                width: 100%;
                height: 200px;
            }
            .content-card .card-body {
                padding: 20px 24px;
            }
            .section-header h2 {
                font-size: 1.7rem;
            }
            .cta-section h2 {
                font-size: 1.8rem;
            }
            .footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .stat-item .stat-number {
                font-size: 2.2rem;
            }
            .step-item {
                padding: 24px 16px;
            }
            .faq-item .faq-q {
                padding: 16px 20px;
                font-size: 0.95rem;
            }
            .faq-item.open .faq-a {
                padding: 0 20px 16px;
            }
            .btn {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-header {
                margin-bottom: 36px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .cta-actions {
                flex-direction: column;
                align-items: center;
            }
            .text-image-block .text-content .features {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .page-hero .hero-badge {
                font-size: 0.75rem;
                padding: 4px 16px;
            }
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .steps {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-item .stat-number {
                font-size: 1.8rem;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .card {
                padding: 24px 20px;
            }
            .content-card .card-body {
                padding: 16px 18px;
            }
            .content-card .card-body h3 {
                font-size: 1.1rem;
            }
            .footer .footer-grid {
                gap: 24px;
            }
            .footer .footer-brand p {
                font-size: 0.85rem;
            }
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f1b2d;
            --primary-light: #1a2d4a;
            --accent: #d4a84b;
            --accent-light: #e8c46a;
            --accent-dark: #b8923a;
            --bg-light: #f5f3ef;
            --bg-white: #ffffff;
            --text-dark: #1a1a2e;
            --text-muted: #6b7280;
            --text-light: #f0ece4;
            --border: #e5e7eb;
            --border-light: #f0ede8;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-xs: 4px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --shadow-gold: 0 4px 20px rgba(212,168,75,0.25);
            --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
            --font: 'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
            --max-width: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset / Base ===== */
        *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
        body{font-family:var(--font);font-size:16px;line-height:1.7;color:var(--text-dark);background:var(--bg-light);-webkit-font-smoothing:antialiased}
        a{color:inherit;text-decoration:none;transition:color var(--transition)}
        img{max-width:100%;height:auto;display:block}
        button,input,textarea{font-family:inherit;font-size:inherit}
        ul{list-style:none}
        h1,h2,h3,h4,h5,h6{line-height:1.3;font-weight:700;color:var(--primary)}

        /* ===== 容器 ===== */
        .container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px}
        @media(max-width:768px){.container{padding:0 16px}}

        /* ===== 导航 ===== */
        .header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,0.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);height:var(--header-h);transition:box-shadow var(--transition)}
        .header.scrolled{box-shadow:0 2px 20px rgba(0,0,0,0.08)}
        .header-inner{display:flex;align-items:center;justify-content:space-between;height:100%}
        .logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.35rem;color:var(--primary)}
        .logo-icon{display:flex;align-items:center;justify-content:center;width:40px;height:40px;background:var(--accent);color:var(--primary);border-radius:var(--radius-sm);font-size:1.4rem;font-weight:900}
        .logo-text{letter-spacing:0.5px}
        .nav{display:flex;align-items:center;gap:6px}
        .nav a{position:relative;padding:8px 18px;border-radius:var(--radius-sm);font-size:0.95rem;font-weight:500;color:var(--text-dark);transition:all var(--transition)}
        .nav a:hover{color:var(--accent);background:rgba(212,168,75,0.08)}
        .nav a.active{color:var(--accent);background:rgba(212,168,75,0.12)}
        .nav a.active::after{content:'';position:absolute;bottom:2px;left:50%;transform:translateX(-50%);width:20px;height:3px;background:var(--accent);border-radius:2px}
        .nav .nav-cta{background:var(--accent);color:var(--primary);font-weight:700;padding:8px 24px;border-radius:var(--radius-sm);box-shadow:var(--shadow-gold)}
        .nav .nav-cta:hover{background:var(--accent-light);transform:translateY(-1px);box-shadow:0 6px 24px rgba(212,168,75,0.35);color:var(--primary)}
        .nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:8px;border-radius:var(--radius-xs)}
        .nav-toggle span{display:block;width:26px;height:2.5px;background:var(--primary);border-radius:2px;transition:all var(--transition)}
        .nav-toggle.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
        .nav-toggle.active span:nth-child(2){opacity:0}
        .nav-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
        @media(max-width:768px){
            .nav-toggle{display:flex}
            .nav{position:fixed;top:var(--header-h);left:0;right:0;background:rgba(255,255,255,0.98);backdrop-filter:blur(12px);flex-direction:column;padding:20px 24px;gap:10px;border-bottom:1px solid var(--border);transform:translateY(-120%);opacity:0;pointer-events:none;transition:all 0.4s cubic-bezier(0.4,0,0.2,1)}
            .nav.open{transform:translateY(0);opacity:1;pointer-events:auto}
            .nav a{width:100%;text-align:center;padding:12px 16px;font-size:1.05rem}
            .nav .nav-cta{margin-top:6px}
        }

        /* ===== 面包屑 ===== */
        .breadcrumb{background:var(--bg-white);border-bottom:1px solid var(--border);padding:12px 0;font-size:0.9rem;color:var(--text-muted)}
        .breadcrumb a{color:var(--text-muted);transition:color var(--transition)}
        .breadcrumb a:hover{color:var(--accent)}
        .breadcrumb span{margin:0 8px;color:var(--border)}
        .breadcrumb .current{color:var(--text-dark);font-weight:500}

        /* ===== 文章 Banner ===== */
        .article-banner{position:relative;padding:120px 0 80px;margin-top:var(--header-h);background:var(--primary);background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;background-blend-mode:overlay;overflow:hidden}
        .article-banner::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,27,45,0.88) 0%,rgba(15,27,45,0.72) 50%,rgba(15,27,45,0.55) 100%)}
        .article-banner .container{position:relative;z-index:2}
        .article-banner .category-badge{display:inline-block;padding:4px 16px;background:var(--accent);color:var(--primary);font-size:0.8rem;font-weight:700;border-radius:20px;letter-spacing:0.5px;margin-bottom:16px}
        .article-banner h1{font-size:2.8rem;font-weight:800;color:var(--bg-white);max-width:820px;line-height:1.25;margin-bottom:16px;text-shadow:0 2px 12px rgba(0,0,0,0.15)}
        .article-banner .meta{display:flex;flex-wrap:wrap;gap:20px;align-items:center;color:rgba(255,255,255,0.8);font-size:0.9rem}
        .article-banner .meta i{margin-right:6px;color:var(--accent)}
        .article-banner .meta span{display:inline-flex;align-items:center}
        @media(max-width:768px){
            .article-banner{padding:100px 0 50px}
            .article-banner h1{font-size:1.8rem}
            .article-banner .meta{gap:12px;font-size:0.82rem}
        }
        @media(max-width:520px){
            .article-banner h1{font-size:1.5rem}
            .article-banner{padding:90px 0 40px}
        }

        /* ===== 文章正文 ===== */
        .article-content{padding:60px 0;background:var(--bg-white)}
        .article-content .container{max-width:820px}
        .article-body{font-size:1.05rem;line-height:1.9;color:var(--text-dark)}
        .article-body .featured-image{margin-bottom:36px;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-md)}
        .article-body .featured-image img{width:100%;aspect-ratio:16/9;object-fit:cover}
        .article-body p{margin-bottom:1.4em}
        .article-body h2{font-size:1.6rem;margin-top:2em;margin-bottom:0.8em;color:var(--primary);border-left:4px solid var(--accent);padding-left:16px}
        .article-body h3{font-size:1.25rem;margin-top:1.6em;margin-bottom:0.6em;color:var(--primary-light)}
        .article-body ul,.article-body ol{padding-left:24px;margin-bottom:1.4em}
        .article-body li{margin-bottom:0.4em}
        .article-body ul li::marker{color:var(--accent)}
        .article-body blockquote{background:var(--bg-light);border-left:4px solid var(--accent);padding:16px 24px;margin:1.6em 0;border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text-muted);font-style:italic}
        .article-body a{color:var(--accent);border-bottom:1px solid transparent;transition:border-color var(--transition)}
        .article-body a:hover{border-bottom-color:var(--accent)}
        .article-body img{border-radius:var(--radius-sm);margin:1.2em 0}

        /* 文章不存在 */
        .not-found-wrap{text-align:center;padding:80px 20px}
        .not-found-wrap .icon{font-size:4rem;color:var(--accent);margin-bottom:20px}
        .not-found-wrap h2{font-size:2rem;margin-bottom:12px}
        .not-found-wrap p{color:var(--text-muted);margin-bottom:28px;max-width:480px;margin-left:auto;margin-right:auto}
        .not-found-wrap .btn{display:inline-flex;align-items:center;gap:8px}

        /* ===== 文章底部信息 ===== */
        .article-footer-info{border-top:1px solid var(--border);margin-top:48px;padding-top:32px;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px}
        .article-tags{display:flex;flex-wrap:wrap;gap:8px}
        .article-tags .tag{padding:4px 14px;background:var(--bg-light);border-radius:20px;font-size:0.82rem;color:var(--text-muted);border:1px solid var(--border);transition:all var(--transition)}
        .article-tags .tag:hover{background:var(--accent);color:var(--primary);border-color:var(--accent)}
        .article-share{display:flex;align-items:center;gap:10px;font-size:0.9rem;color:var(--text-muted)}
        .article-share a{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:var(--bg-light);color:var(--text-muted);border:1px solid var(--border);transition:all var(--transition)}
        .article-share a:hover{background:var(--accent);color:var(--primary);border-color:var(--accent);transform:translateY(-2px)}

        @media(max-width:768px){
            .article-content{padding:40px 0}
            .article-body{font-size:1rem}
            .article-body h2{font-size:1.3rem}
            .article-footer-info{flex-direction:column;align-items:flex-start}
        }

        /* ===== 相关推荐 ===== */
        .related-posts{padding:60px 0;background:var(--bg-light)}
        .related-posts .section-title{text-align:center;margin-bottom:40px}
        .related-posts .section-title h2{font-size:2rem;position:relative;display:inline-block}
        .related-posts .section-title h2::after{content:'';display:block;width:60px;height:3px;background:var(--accent);margin:10px auto 0;border-radius:2px}
        .related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
        .related-card{background:var(--bg-white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:all var(--transition);border:1px solid var(--border)}
        .related-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--accent)}
        .related-card .card-img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block}
        .related-card .card-body{padding:20px}
        .related-card .card-cat{font-size:0.75rem;font-weight:600;color:var(--accent);text-transform:uppercase;letter-spacing:0.5px;margin-bottom:6px}
        .related-card .card-title{font-size:1.05rem;font-weight:700;color:var(--primary);line-height:1.4;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
        .related-card .card-title:hover{color:var(--accent)}
        .related-card .card-excerpt{font-size:0.88rem;color:var(--text-muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:12px}
        .related-card .card-meta{font-size:0.8rem;color:var(--text-muted);display:flex;align-items:center;gap:12px}
        .related-card .card-meta i{color:var(--accent);margin-right:4px}
        @media(max-width:768px){
            .related-posts{padding:40px 0}
            .related-posts .section-title h2{font-size:1.6rem}
            .related-grid{grid-template-columns:1fr}
        }
        @media(min-width:769px)and(max-width:1024px){
            .related-grid{grid-template-columns:repeat(2,1fr)}
        }

        /* ===== CTA ===== */
        .cta-section{padding:70px 0;background:var(--primary);background-image:url('/assets/images/backpic/back-3.png');background-size:cover;background-position:center;background-blend-mode:overlay;position:relative}
        .cta-section::before{content:'';position:absolute;inset:0;background:rgba(15,27,45,0.82)}
        .cta-section .container{position:relative;z-index:2;text-align:center}
        .cta-section h2{font-size:2.2rem;color:var(--bg-white);margin-bottom:12px;font-weight:800}
        .cta-section p{color:rgba(255,255,255,0.8);max-width:560px;margin:0 auto 28px;font-size:1.05rem}
        .cta-section .btn-group{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}
        .cta-section .btn{display:inline-flex;align-items:center;gap:8px;padding:14px 36px;border-radius:var(--radius-sm);font-weight:700;font-size:1rem;transition:all var(--transition);cursor:pointer;border:none}
        .cta-section .btn-primary{background:var(--accent);color:var(--primary);box-shadow:var(--shadow-gold)}
        .cta-section .btn-primary:hover{background:var(--accent-light);transform:translateY(-2px);box-shadow:0 8px 30px rgba(212,168,75,0.4)}
        .cta-section .btn-outline{background:transparent;color:var(--bg-white);border:2px solid rgba(255,255,255,0.3)}
        .cta-section .btn-outline:hover{background:rgba(255,255,255,0.1);border-color:var(--accent);color:var(--accent)}
        @media(max-width:768px){
            .cta-section{padding:50px 0}
            .cta-section h2{font-size:1.6rem}
            .cta-section p{font-size:0.95rem}
            .cta-section .btn{padding:12px 28px;font-size:0.95rem}
        }

        /* ===== 页脚 ===== */
        .footer{background:var(--primary);color:rgba(255,255,255,0.7);padding:60px 0 0}
        .footer .logo{color:var(--bg-white);margin-bottom:16px}
        .footer .logo-icon{background:var(--accent);color:var(--primary)}
        .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
        .footer-brand p{font-size:0.92rem;line-height:1.7;max-width:360px;color:rgba(255,255,255,0.6)}
        .footer-col h4{font-size:1rem;font-weight:700;color:var(--bg-white);margin-bottom:16px;letter-spacing:0.5px}
        .footer-col ul{display:flex;flex-direction:column;gap:10px}
        .footer-col ul a{font-size:0.9rem;color:rgba(255,255,255,0.6);transition:all var(--transition)}
        .footer-col ul a:hover{color:var(--accent);padding-left:4px}
        .footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding:24px 0;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;font-size:0.85rem;color:rgba(255,255,255,0.45)}
        .footer-bottom .links{display:flex;gap:20px}
        .footer-bottom .links a{color:rgba(255,255,255,0.45);transition:color var(--transition)}
        .footer-bottom .links a:hover{color:var(--accent)}
        @media(max-width:768px){
            .footer{padding:40px 0 0}
            .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
            .footer-brand{grid-column:1/-1}
            .footer-bottom{flex-direction:column;text-align:center}
        }
        @media(max-width:520px){
            .footer-grid{grid-template-columns:1fr;gap:24px}
        }

        /* ===== 通用按钮 ===== */
        .btn{display:inline-flex;align-items:center;gap:8px;padding:12px 32px;border-radius:var(--radius-sm);font-weight:600;font-size:0.95rem;transition:all var(--transition);cursor:pointer;border:none;text-align:center}
        .btn-primary{background:var(--accent);color:var(--primary);box-shadow:var(--shadow-gold)}
        .btn-primary:hover{background:var(--accent-light);transform:translateY(-2px);box-shadow:0 8px 30px rgba(212,168,75,0.35)}
        .btn-outline{background:transparent;color:var(--primary);border:2px solid var(--border)}
        .btn-outline:hover{background:var(--bg-light);border-color:var(--accent);color:var(--accent)}
        .btn-sm{padding:8px 20px;font-size:0.85rem}
        .btn-lg{padding:16px 40px;font-size:1.05rem}

        /* ===== 辅助 ===== */
        .text-center{text-align:center}
        .mt-16{margin-top:16px}
        .mt-24{margin-top:24px}
        .mb-16{margin-bottom:16px}
        .mb-24{margin-bottom:24px}
        .gap-8{gap:8px}
        .gap-16{gap:16px}

        /* ===== 加载动画 ===== */
        @keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
        .fade-up{animation:fadeUp 0.6s ease forwards}

        /* ===== 焦点可访问性 ===== */
        a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:var(--radius-xs)}

        /* ===== 滚动条美化 ===== */
        ::-webkit-scrollbar{width:8px}
        ::-webkit-scrollbar-track{background:var(--bg-light)}
        ::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}
        ::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}