/* roulang page: index */
:root {
            --primary: #dc2626;
            --primary-dark: #b91c1c;
            --primary-light: #fef2f2;
            --secondary: #1e40af;
            --secondary-light: #eff6ff;
            --accent: #f59e0b;
            --bg-body: #fafafa;
            --bg-card: #ffffff;
            --text-primary: #1f2937;
            --text-secondary: #6b7280;
            --text-light: #9ca3af;
            --border-light: #e5e7eb;
            --border-medium: #d1d5db;
            --radius-sm: 0.375rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
            --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
            --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
            --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            background-color: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 100%;
            line-height: 1.15;
            margin: 0;
            border: none;
            outline: none;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
        }
        input:focus,
        textarea:focus,
        select:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        @media (min-width: 768px) {
            .container {
                padding: 0 2rem;
            }
        }
        @media (min-width: 1024px) {
            .container {
                padding: 0 2.5rem;
            }
        }

        /* 导航 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: 68px;
            transition: var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
            background: rgba(255, 255, 255, 0.99);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 1rem;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-logo i {
            font-size: 1.6rem;
            color: var(--primary);
        }
        .nav-logo span {
            color: var(--text-primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-shrink: 0;
        }
        .nav-links li a {
            display: block;
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            font-size: 0.925rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .nav-links li a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-links li a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 1rem;
            right: 1rem;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg-body);
            border: 1px solid var(--border-light);
            border-radius: 9999px;
            padding: 0.35rem 0.75rem 0.35rem 1rem;
            transition: var(--transition);
            min-width: 160px;
        }
        .nav-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
        }
        .nav-search input {
            background: transparent;
            border: none;
            padding: 0.35rem 0;
            font-size: 0.875rem;
            color: var(--text-primary);
            width: 100%;
            outline: none;
        }
        .nav-search input::placeholder {
            color: var(--text-light);
        }
        .nav-search button {
            background: transparent;
            color: var(--text-secondary);
            padding: 0.25rem 0.5rem;
            border-radius: 9999px;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .nav-search button:hover {
            color: var(--primary);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--primary);
            color: #fff;
            padding: 0.5rem 1.25rem;
            border-radius: 9999px;
            font-size: 0.875rem;
            font-weight: 600;
            transition: var(--transition);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(220, 38, 38, 0.3);
        }
        .nav-cta:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(220, 38, 38, 0.4);
        }
        .nav-cta:active {
            transform: translateY(0);
        }
        .mobile-toggle {
            display: none;
            background: transparent;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 0.25rem;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
        }
        .mobile-toggle:hover {
            color: var(--primary);
        }

        /* 移动端菜单 */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            z-index: 999;
            padding: 1.5rem 1.25rem;
            overflow-y: auto;
            transform: translateY(-10px);
            opacity: 0;
            transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            pointer-events: none;
        }
        .mobile-menu.open {
            display: block;
            transform: translateY(0);
            opacity: 1;
            pointer-events: all;
        }
        .mobile-menu-links {
            list-style: none;
            padding: 0;
            margin: 0 0 1.5rem;
        }
        .mobile-menu-links li a {
            display: block;
            padding: 0.85rem 1rem;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: var(--radius-md);
            transition: var(--transition);
            border-bottom: 1px solid var(--border-light);
        }
        .mobile-menu-links li a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .mobile-menu-links li a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .mobile-menu-actions {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            margin-top: 1rem;
        }
        .mobile-menu-actions .nav-cta {
            justify-content: center;
            padding: 0.75rem 1.5rem;
            font-size: 1rem;
        }
        .mobile-menu-actions .nav-search {
            width: 100%;
            border-radius: 9999px;
            padding: 0.5rem 1rem;
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 88vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 7rem 1.25rem 5rem;
            margin-top: 68px;
            background: linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.35) 100%), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(220, 38, 38, 0.15) 0%, transparent 60%);
            pointer-events: none;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.5) 100%);
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 880px;
            text-align: center;
            color: #fff;
            animation: heroFadeIn 1s ease-out;
        }
        @keyframes heroFadeIn {
            0% {
                opacity: 0;
                transform: translateY(30px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .hero-content h1 {
            font-size: clamp(2rem, 5.5vw, 3.6rem);
            font-weight: 800;
            line-height: 1.2;
            margin: 0 0 1rem;
            letter-spacing: -0.02em;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }
        .hero-content h1 .highlight {
            color: #fbbf24;
            display: inline-block;
        }
        .hero-content p {
            font-size: clamp(1rem, 2.2vw, 1.25rem);
            line-height: 1.7;
            margin: 0 auto 2rem;
            max-width: 700px;
            opacity: 0.92;
            text-shadow: 0 1px 12px rgba(0, 0, 0, 0.25);
        }
        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.75rem 1.5rem;
            margin-bottom: 2.5rem;
            font-size: 0.95rem;
            opacity: 0.9;
        }
        .hero-badges span {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            padding: 0.4rem 1rem;
            border-radius: 9999px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .hero-badges i {
            color: #fbbf24;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem;
        }
        .hero-actions .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--primary);
            color: #fff;
            padding: 0.85rem 2.2rem;
            border-radius: 9999px;
            font-size: 1.05rem;
            font-weight: 600;
            box-shadow: 0 4px 20px rgba(220, 38, 38, 0.4);
            transition: var(--transition);
        }
        .hero-actions .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(220, 38, 38, 0.5);
        }
        .hero-actions .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            color: #fff;
            padding: 0.85rem 2rem;
            border-radius: 9999px;
            font-size: 1.05rem;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: var(--transition);
        }
        .hero-actions .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
            border-color: rgba(255, 255, 255, 0.5);
        }

        /* 通用板块 */
        .section-padding {
            padding: 5rem 0;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 3rem 0;
            }
        }
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-title h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 0.75rem;
            letter-spacing: -0.01em;
        }
        .section-title p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 650px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-title .accent-line {
            display: inline-block;
            width: 50px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
            margin-top: 0.75rem;
        }

        /* 卡片网格 */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.75rem;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.75rem;
        }
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .grid-3,
            .grid-2,
            .grid-4 {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }
        }

        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary);
        }
        .feature-card .icon-box {
            width: 60px;
            height: 60px;
            margin: 0 auto 1.25rem;
            border-radius: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: #fff;
            background: var(--primary);
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin: 0 0 0.5rem;
            color: var(--text-primary);
        }
        .feature-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        .feature-card .badge-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.75rem;
            border-radius: 9999px;
            margin-bottom: 0.75rem;
        }

        /* 图文区块 */
        .content-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }
        @media (max-width: 768px) {
            .content-block {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .content-block.reverse {
                direction: ltr;
            }
        }
        .content-block.reverse {
            direction: rtl;
        }
        .content-block.reverse>* {
            direction: ltr;
        }
        .content-text h2 {
            font-size: clamp(1.4rem, 3vw, 2rem);
            font-weight: 700;
            margin: 0 0 1rem;
            color: var(--text-primary);
        }
        .content-text p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0 0 1.25rem;
        }
        .content-text ul {
            list-style: none;
            padding: 0;
            margin: 0 0 1.5rem;
        }
        .content-text ul li {
            display: flex;
            align-items: flex-start;
            gap: 0.65rem;
            padding: 0.4rem 0;
            font-size: 0.95rem;
            color: var(--text-secondary);
        }
        .content-text ul li i {
            color: var(--primary);
            font-size: 0.85rem;
            margin-top: 0.25rem;
            flex-shrink: 0;
        }
        .content-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .content-image img {
            width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-lg);
            transition: var(--transition);
        }
        .content-image:hover img {
            transform: scale(1.02);
        }

        /* 步骤流程 */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            counter-reset: step;
        }
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
        }
        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .step-card .step-number {
            width: 44px;
            height: 44px;
            margin: 0 auto 1rem;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
        }
        .step-card h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin: 0 0 0.4rem;
            color: var(--text-primary);
        }
        .step-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }
        .step-connector {
            display: none;
        }

        /* 资讯列表（CMS） */
        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }
        @media (max-width: 768px) {
            .news-list {
                grid-template-columns: 1fr;
            }
        }
        .news-item {
            display: flex;
            gap: 1rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 1.25rem;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .news-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }
        .news-item .news-img {
            width: 120px;
            min-height: 80px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--border-light);
        }
        @media (max-width: 520px) {
            .news-item .news-img {
                width: 90px;
                min-height: 65px;
            }
        }
        .news-item .news-body {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-body h4 {
            font-size: 0.98rem;
            font-weight: 600;
            margin: 0 0 0.35rem;
            color: var(--text-primary);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .news-body h4 a {
            color: inherit;
        }
        .news-item .news-body h4 a:hover {
            color: var(--primary);
        }
        .news-item .news-body p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0 0 0.5rem;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .news-meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.78rem;
            color: var(--text-light);
        }
        .news-item .news-meta .tag {
            background: var(--primary-light);
            color: var(--primary);
            padding: 0.1rem 0.5rem;
            border-radius: 4px;
            font-weight: 500;
            font-size: 0.72rem;
        }

        .empty-news {
            grid-column: 1 / -1;
            text-align: center;
            padding: 3rem 1rem;
            color: var(--text-secondary);
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-medium);
        }
        .empty-news i {
            font-size: 2rem;
            color: var(--text-light);
            margin-bottom: 0.75rem;
            display: block;
        }

        /* 统计数据 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        .stat-item {
            text-align: center;
            padding: 1.5rem 1rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .stat-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .stat-item .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 0.35rem;
        }

        /* FAQ */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.1rem 1.5rem;
            font-size: 0.98rem;
            font-weight: 500;
            color: var(--text-primary);
            cursor: pointer;
            transition: var(--transition);
            user-select: none;
            background: transparent;
            width: 100%;
            text-align: left;
            border: none;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            transition: transform 0.3s ease;
            color: var(--text-light);
            flex-shrink: 0;
            margin-left: 1rem;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 1.5rem;
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 1.5rem 1.2rem;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, #991b1b 100%);
            padding: 4rem 1.25rem;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 30%, rgba(255, 255, 255, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 700;
            margin: 0 0 0.75rem;
        }
        .cta-section p {
            font-size: 1.05rem;
            opacity: 0.9;
            max-width: 600px;
            margin: 0 auto 2rem;
            line-height: 1.7;
        }
        .cta-section .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #fff;
            color: var(--primary);
            padding: 0.85rem 2.5rem;
            border-radius: 9999px;
            font-size: 1.05rem;
            font-weight: 600;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
            transition: var(--transition);
        }
        .cta-section .cta-btn:hover {
            background: #fef2f2;
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
        }

        /* 页脚 */
        .site-footer {
            background: #111827;
            color: #d1d5db;
            padding: 3.5rem 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2rem;
            padding-bottom: 2.5rem;
            border-bottom: 1px solid #1f2937;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }
        }
        .footer-brand .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .footer-brand .logo-text i {
            color: var(--primary);
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: #9ca3af;
            max-width: 360px;
            margin: 0 0 1rem;
        }
        .footer-social {
            display: flex;
            gap: 0.75rem;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: #1f2937;
            color: #d1d5db;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .footer-col h5 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 1rem;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .footer-col ul li a {
            font-size: 0.88rem;
            color: #9ca3af;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary);
            padding-left: 3px;
        }
        .footer-bottom {
            padding: 1.25rem 0;
            text-align: center;
            font-size: 0.82rem;
            color: #6b7280;
        }
        .footer-bottom a {
            color: #9ca3af;
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }

        /* 响应式导航 */
        @media (max-width: 900px) {
            .nav-links {
                display: none;
            }
            .nav-search {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-actions .nav-cta.mobile-show {
                display: inline-flex;
                padding: 0.4rem 0.9rem;
                font-size: 0.8rem;
            }
        }
        @media (min-width: 901px) {
            .mobile-toggle {
                display: none;
            }
            .mobile-menu {
                display: none !important;
            }
        }

        /* 文章详情页样式（复用） */
        .article-header {
            background: linear-gradient(135deg, rgba(0, 0, 0, 0.65) 0%, rgba(0, 0, 0, 0.35) 100%), url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            padding: 8rem 1.25rem 4rem;
            text-align: center;
            color: #fff;
            margin-top: 68px;
        }
        .article-header h1 {
            font-size: clamp(1.5rem, 3.5vw, 2.4rem);
            font-weight: 700;
            max-width: 800px;
            margin: 0 auto 1rem;
        }
        .article-header .meta {
            font-size: 0.9rem;
            opacity: 0.8;
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

        /* 分类页样式（复用） */
        .category-hero {
            background: linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.3) 100%), url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;
            padding: 8rem 1.25rem 4rem;
            text-align: center;
            color: #fff;
            margin-top: 68px;
        }
        .category-hero h1 {
            font-size: clamp(1.6rem, 3.5vw, 2.6rem);
            font-weight: 700;
            max-width: 700px;
            margin: 0 auto 0.75rem;
        }
        .category-hero p {
            font-size: 1.05rem;
            opacity: 0.9;
            max-width: 600px;
            margin: 0 auto;
        }

        /* 辅助 */
        .bg-soft-primary {
            background: var(--primary-light);
        }
        .bg-soft-secondary {
            background: var(--secondary-light);
        }
        .text-primary {
            color: var(--primary);
        }
        .border-primary {
            border-color: var(--primary);
        }
        .shadow-card {
            box-shadow: var(--shadow-md);
        }
        .rounded-card {
            border-radius: var(--radius-lg);
        }

        @media (max-width: 520px) {
            .hero-section {
                min-height: 75vh;
                padding: 6rem 1rem 3rem;
            }
            .hero-badges span {
                font-size: 0.82rem;
                padding: 0.3rem 0.75rem;
            }
            .feature-card {
                padding: 1.5rem 1.25rem;
            }
            .nav-logo {
                font-size: 1rem;
            }
            .nav-logo i {
                font-size: 1.3rem;
            }
            .stat-item .stat-number {
                font-size: 1.5rem;
            }
        }

        /* 滚动条美化 */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #f1f1f1;
        }
        ::-webkit-scrollbar-thumb {
            background: #c4c4c4;
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #a0a0a0;
        }

/* roulang page: article */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --bg: #f8f9fa;
            --bg-card: #ffffff;
            --text: #1a1a2e;
            --text-light: #6c757d;
            --text-white: #ffffff;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.12);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

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

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

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(8px);
            background: rgba(255, 255, 255, 0.96);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--secondary);
            flex-shrink: 0;
        }
        .nav-logo i {
            color: var(--primary);
            font-size: 1.6rem;
        }
        .nav-logo:hover {
            color: var(--secondary);
            opacity: 0.85;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 8px;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            padding: 8px 18px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-links li a:hover {
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
        }
        .nav-links li a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.3);
        }
        .nav-links li a.active:hover {
            background: var(--primary-dark);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 40px;
            overflow: hidden;
            transition: var(--transition);
        }
        .nav-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.1);
        }
        .nav-search input {
            background: transparent;
            border: none;
            padding: 8px 16px;
            font-size: 0.9rem;
            min-width: 160px;
            color: var(--text);
        }
        .nav-search input::placeholder {
            color: var(--text-light);
        }
        .nav-search button {
            background: transparent;
            padding: 8px 14px;
            cursor: pointer;
            color: var(--text-light);
            transition: var(--transition);
        }
        .nav-search button:hover {
            color: var(--primary);
        }

        .nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 10px 24px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.3);
        }
        .nav-cta:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.35);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--text);
            padding: 8px;
            border-radius: 8px;
        }
        .mobile-toggle:hover {
            background: var(--bg);
        }

        /* ===== Article Banner ===== */
        .article-banner {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, var(--secondary) 0%, #0d1b2a 100%);
            color: var(--text-white);
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .article-banner .container {
            position: relative;
            z-index: 2;
        }
        .article-banner .breadcrumb {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
        }
        .article-banner .breadcrumb a:hover {
            color: #fff;
        }
        .article-banner .breadcrumb span {
            color: rgba(255, 255, 255, 0.5);
        }
        .article-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.25;
            max-width: 860px;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .article-banner .meta-line {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.75);
        }
        .article-banner .meta-line i {
            margin-right: 6px;
            color: var(--primary-light);
        }
        .article-banner .meta-line span {
            display: inline-flex;
            align-items: center;
        }

        /* ===== Article Content ===== */
        .article-section {
            padding: 60px 0;
        }
        .article-wrapper {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
            align-items: start;
        }

        .article-main {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 40px;
            overflow: hidden;
        }

        .article-body {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text);
        }
        .article-body p {
            margin-bottom: 1.4em;
        }
        .article-body h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-top: 2em;
            margin-bottom: 0.8em;
            color: var(--secondary);
        }
        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-top: 1.6em;
            margin-bottom: 0.6em;
            color: var(--secondary);
        }
        .article-body ul,
        .article-body ol {
            padding-left: 1.6em;
            margin-bottom: 1.4em;
        }
        .article-body li {
            margin-bottom: 0.5em;
        }
        .article-body a {
            color: var(--primary);
            font-weight: 500;
            border-bottom: 1px solid transparent;
        }
        .article-body a:hover {
            border-bottom-color: var(--primary);
        }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            background: rgba(230, 57, 70, 0.04);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.6em 0;
            font-style: italic;
            color: var(--text-light);
        }
        .article-body img {
            border-radius: var(--radius-sm);
            margin: 1.6em 0;
            box-shadow: var(--shadow);
        }
        .article-body .highlight-box {
            background: linear-gradient(135deg, rgba(230, 57, 70, 0.06), rgba(29, 53, 87, 0.06));
            border-radius: var(--radius-sm);
            padding: 24px 28px;
            margin: 1.6em 0;
            border: 1px solid var(--border);
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }
        .article-tags .tag {
            background: var(--bg);
            padding: 6px 16px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: var(--text-light);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .article-tags .tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(230, 57, 70, 0.04);
        }

        .article-share {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 24px;
            padding-top: 20px;
            border-top: 1px solid var(--border);
        }
        .article-share span {
            font-size: 0.9rem;
            color: var(--text-light);
            font-weight: 500;
        }
        .article-share a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg);
            color: var(--text-light);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .article-share a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(230, 57, 70, 0.25);
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }

        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px;
            overflow: hidden;
        }
        .sidebar-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-card h4 i {
            color: var(--primary);
        }

        .sidebar-card .related-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-card .related-list li {
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }
        .sidebar-card .related-list li:last-child {
            border-bottom: none;
        }
        .sidebar-card .related-list li .num {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .sidebar-card .related-list li a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text);
            line-height: 1.4;
        }
        .sidebar-card .related-list li a:hover {
            color: var(--primary);
        }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--secondary), #0d1b2a);
            color: var(--text-white);
            border-radius: var(--radius);
            padding: 32px 28px;
            text-align: center;
        }
        .sidebar-cta h4 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }
        .sidebar-cta p {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 20px;
        }
        .sidebar-cta .btn-cta {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 12px 32px;
            border-radius: 40px;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.3);
        }
        .sidebar-cta .btn-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 8px 28px rgba(230, 57, 70, 0.4);
            color: #fff;
        }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 40px;
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .not-found-box i {
            font-size: 4rem;
            color: var(--text-light);
            margin-bottom: 24px;
            opacity: 0.4;
        }
        .not-found-box h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-light);
            margin-bottom: 28px;
        }
        .not-found-box .btn-home {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 12px 36px;
            border-radius: 40px;
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-box .btn-home:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.3);
            color: #fff;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--secondary);
            color: rgba(255, 255, 255, 0.9);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand .logo-text {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand .logo-text i {
            color: var(--primary-light);
        }
        .footer-brand p {
            font-size: 0.92rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.7);
            max-width: 360px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 20px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.15rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }

        .footer-col h5 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-bottom {
            text-align: center;
            padding: 24px 0;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-wrapper {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .article-banner h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--bg-card);
                flex-direction: column;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
                gap: 4px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li a {
                padding: 12px 16px;
                border-radius: 10px;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-search input {
                min-width: 100px;
            }
            .nav-cta span {
                display: none;
            }
            .article-banner {
                padding: 60px 0 40px;
            }
            .article-banner h1 {
                font-size: 1.8rem;
            }
            .article-main {
                padding: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .sidebar-cta {
                padding: 24px 20px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .nav-inner {
                height: 64px;
                gap: 8px;
            }
            .nav-logo {
                font-size: 1.1rem;
            }
            .nav-logo i {
                font-size: 1.3rem;
            }
            .nav-search {
                display: none;
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            .article-banner h1 {
                font-size: 1.5rem;
            }
            .article-main {
                padding: 16px;
            }
            .article-body {
                font-size: 0.98rem;
            }
            .article-banner .meta-line {
                flex-direction: column;
                gap: 8px;
            }
            .sidebar-card {
                padding: 20px;
            }
            .not-found-box {
                padding: 40px 20px;
            }
            .not-found-box h2 {
                font-size: 1.4rem;
            }
        }

/* roulang page: category1 */
:root {
            --brand: #3b82f6;
            --brand-dark: #1d4ed8;
            --brand-light: #93c5fd;
            --accent: #d946ef;
            --warm: #f97316;
            --bg-body: #f8fafc;
            --text-body: #1e293b;
            --text-muted: #64748b;
            --border-light: #e2e8f0;
            --radius: 0.75rem;
            --radius-lg: 1rem;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.05);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            background: var(--bg-body);
            color: var(--text-body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

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

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

        @media (min-width: 768px) {
            .container {
                padding: 0 40px;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding: 0 60px;
            }
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.6);
            box-shadow: 0 1px 12px rgba(0, 0, 0, 0.04);
            height: 72px;
            display: flex;
            align-items: center;
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--brand-dark);
            flex-shrink: 0;
            transition: var(--transition);
        }

        .nav-logo i {
            font-size: 1.5rem;
            color: var(--brand);
            background: linear-gradient(135deg, var(--brand) 0%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-logo:hover {
            opacity: 0.8;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 8px;
            margin: 0 24px;
        }

        .nav-links li a {
            padding: 8px 18px;
            border-radius: 9999px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-links li a:hover {
            color: var(--brand-dark);
            background: rgba(59, 130, 246, 0.06);
        }

        .nav-links li a.active {
            color: #fff;
            background: linear-gradient(135deg, var(--brand) 0%, #6366f1 100%);
            box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: #f1f5f9;
            border-radius: 9999px;
            padding: 0 4px 0 18px;
            border: 1px solid transparent;
            transition: var(--transition);
        }

        .nav-search:focus-within {
            background: #fff;
            border-color: var(--brand-light);
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
        }

        .nav-search input {
            background: transparent;
            padding: 8px 0;
            font-size: 0.9rem;
            color: var(--text-body);
            width: 140px;
        }

        .nav-search input::placeholder {
            color: #94a3b8;
        }

        .nav-search button {
            padding: 8px 14px;
            color: var(--text-muted);
            font-size: 0.95rem;
            border-radius: 9999px;
            transition: var(--transition);
        }

        .nav-search button:hover {
            color: var(--brand);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: linear-gradient(135deg, var(--brand) 0%, #6366f1 100%);
            color: #fff;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.9rem;
            box-shadow: 0 4px 14px rgba(59, 130, 246, 0.3);
            transition: var(--transition);
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(59, 130, 246, 0.35);
        }

        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text-body);
            padding: 4px 8px;
            border-radius: 8px;
            transition: var(--transition);
        }

        .mobile-toggle:hover {
            background: #f1f5f9;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
        }

        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr 1fr;
                gap: 32px;
            }
        }

        .footer-brand .logo-text {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand .logo-text i {
            color: var(--brand);
            font-size: 1.6rem;
        }

        .footer-brand p {
            font-size: 0.95rem;
            line-height: 1.8;
            color: #94a3b8;
            max-width: 360px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 20px;
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50%;
            color: #94a3b8;
            font-size: 1.2rem;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--brand);
            color: #fff;
            transform: translateY(-3px);
        }

        .footer-col h5 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-col h5::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 2px;
            background: var(--brand);
            border-radius: 2px;
        }

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

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: #94a3b8;
            font-size: 0.92rem;
            transition: var(--transition);
            padding: 2px 0;
        }

        .footer-col ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 24px 0;
            margin-top: 48px;
            text-align: center;
            font-size: 0.9rem;
            color: #64748b;
        }

        .footer-bottom a {
            color: var(--brand-light);
        }

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

        /* ===== Mobile Nav ===== */
        @media (max-width: 1023px) {
            .nav-links {
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 6px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-bottom: 1px solid var(--border-light);
                margin: 0;
            }

            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }

            .nav-links li a {
                padding: 12px 20px;
                border-radius: 12px;
                font-size: 1rem;
                width: 100%;
            }

            .nav-links li a.active {
                background: linear-gradient(135deg, var(--brand) 0%, #6366f1 100%);
            }

            .nav-search input {
                width: 100px;
            }

            .nav-cta span {
                display: none;
            }

            .mobile-toggle {
                display: block;
            }
        }

        @media (max-width: 639px) {
            .nav-search {
                display: none;
            }

            .nav-cta {
                padding: 10px 16px;
                font-size: 0.85rem;
            }

            .nav-logo span {
                font-size: 1rem;
            }

            .site-header {
                height: 64px;
            }

            .nav-links {
                top: 64px;
            }
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #172554 100%);
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.15;
            z-index: 1;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 80%, rgba(59, 130, 246, 0.15) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 20%, rgba(217, 70, 239, 0.1) 0%, transparent 60%);
            z-index: 2;
        }

        .page-hero .container {
            position: relative;
            z-index: 3;
        }

        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 20px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 9999px;
            font-size: 0.85rem;
            color: var(--brand-light);
            backdrop-filter: blur(10px);
            margin-bottom: 24px;
        }

        .page-hero h1 {
            font-size: clamp(2rem, 5vw, 3.5rem);
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }

        .page-hero h1 .highlight {
            background: linear-gradient(135deg, #60a5fa, #c084fc);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .page-hero p {
            font-size: 1.15rem;
            color: #94a3b8;
            max-width: 680px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

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

        .page-hero .hero-actions a {
            padding: 14px 36px;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .page-hero .hero-actions .btn-primary {
            background: linear-gradient(135deg, var(--brand) 0%, #6366f1 100%);
            color: #fff;
            box-shadow: 0 8px 24px rgba(59, 130, 246, 0.3);
        }

        .page-hero .hero-actions .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(59, 130, 246, 0.4);
        }

        .page-hero .hero-actions .btn-outline {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.2);
        }

        .page-hero .hero-actions .btn-outline:hover {
            border-color: var(--brand);
            background: rgba(59, 130, 246, 0.1);
            transform: translateY(-3px);
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 4px 16px;
            background: rgba(59, 130, 246, 0.08);
            border-radius: 9999px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--brand);
            margin-bottom: 16px;
        }

        .section-title {
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
            font-weight: 700;
            color: #0f172a;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .section-sub {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 600px;
            line-height: 1.8;
        }

        .text-center .section-sub {
            margin: 0 auto;
        }

        /* ===== Cards ===== */
        .card-grid {
            display: grid;
            gap: 24px;
        }

        .card-grid-2 {
            grid-template-columns: 1fr;
        }

        .card-grid-3 {
            grid-template-columns: 1fr;
        }

        .card-grid-4 {
            grid-template-columns: 1fr;
        }

        @media (min-width: 640px) {
            .card-grid-2 {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .card-grid-3 {
                grid-template-columns: repeat(3, 1fr);
            }
            .card-grid-4 {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .info-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .info-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
            border-color: var(--brand-light);
        }

        .info-card .icon-wrap {
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 16px;
            font-size: 1.6rem;
            margin-bottom: 20px;
        }

        .info-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #0f172a;
            margin-bottom: 10px;
        }

        .info-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== Process Steps ===== */
        .process-steps {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
            counter-reset: step;
        }

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

        @media (min-width: 1024px) {
            .process-steps {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .step-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            text-align: center;
            transition: var(--transition);
            position: relative;
        }

        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 32px rgba(0, 0, 0, 0.06);
        }

        .step-card .step-num {
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand) 0%, #6366f1 100%);
            color: #fff;
            font-weight: 700;
            font-size: 1.2rem;
            margin: 0 auto 16px;
            box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
        }

        .step-card h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #0f172a;
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--brand-light);
            box-shadow: 0 2px 12px rgba(59, 130, 246, 0.06);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: #0f172a;
            cursor: pointer;
            transition: var(--transition);
            background: transparent;
            width: 100%;
            text-align: left;
            gap: 16px;
        }

        .faq-question i {
            color: var(--brand);
            font-size: 0.9rem;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-question.open i {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        .faq-answer.open {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #172554 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.08;
            z-index: 1;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 1.1rem;
            color: #94a3b8;
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .cta-section .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            padding: 16px 44px;
            background: linear-gradient(135deg, var(--brand) 0%, #6366f1 100%);
            color: #fff;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 1.05rem;
            box-shadow: 0 8px 28px rgba(59, 130, 246, 0.35);
            transition: var(--transition);
        }

        .cta-section .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(59, 130, 246, 0.45);
        }

        /* ===== Guide Section ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            align-items: center;
        }

        @media (min-width: 768px) {
            .guide-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        .guide-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            aspect-ratio: 4/3;
            object-fit: cover;
            width: 100%;
        }

        .guide-content h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #0f172a;
            margin-bottom: 16px;
        }

        .guide-content ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .guide-content ul li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            font-size: 0.98rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .guide-content ul li i {
            color: var(--brand);
            margin-top: 4px;
            flex-shrink: 0;
        }

        /* ===== Security Badges ===== */
        .security-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }

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

        @media (min-width: 1024px) {
            .security-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .security-item {
            background: #fff;
            border-radius: var(--radius);
            padding: 24px 20px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            text-align: center;
            transition: var(--transition);
        }

        .security-item:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
        }

        .security-item .sec-icon {
            font-size: 2rem;
            margin-bottom: 12px;
            display: block;
        }

        .security-item h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #0f172a;
            margin-bottom: 6px;
        }

        .security-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ===== Responsive ===== */
        @media (max-width: 639px) {
            .section {
                padding: 48px 0;
            }

            .page-hero {
                min-height: 320px;
                padding: 60px 0 40px;
            }

            .page-hero h1 {
                font-size: 1.8rem;
            }

            .page-hero p {
                font-size: 1rem;
            }

            .page-hero .hero-actions a {
                padding: 12px 28px;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }

            .info-card {
                padding: 24px 20px;
            }

            .step-card {
                padding: 24px 16px;
            }

            .faq-question {
                padding: 16px 18px;
                font-size: 0.95rem;
            }

            .faq-answer {
                padding: 0 18px;
                font-size: 0.9rem;
            }

            .faq-answer.open {
                padding: 0 18px 16px;
            }

            .cta-section {
                padding: 48px 0;
            }

            .cta-section .cta-btn {
                width: 100%;
                justify-content: center;
                padding: 14px 24px;
            }

            .footer-grid {
                gap: 28px;
            }

            .footer-bottom {
                font-size: 0.82rem;
            }
        }

        @media (min-width: 640px) and (max-width: 1023px) {
            .section {
                padding: 64px 0;
            }

            .page-hero {
                min-height: 380px;
                padding: 70px 0 50px;
            }
        }

        /* ===== Utility ===== */
        .bg-soft-brand {
            background: rgba(59, 130, 246, 0.03);
        }

        .bg-white {
            background: #fff;
        }

        .text-center {
            text-align: center;
        }

        .mb-12 {
            margin-bottom: 48px;
        }

        .mb-16 {
            margin-bottom: 64px;
        }

        .gap-6 {
            gap: 24px;
        }

        .mt-8 {
            margin-top: 32px;
        }