/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #2d8a4e;
            --primary-dark: #1a6b3a;
            --primary-light: #4caf50;
            --primary-bg: #e8f5e9;
            --primary-glow: rgba(45, 138, 78, 0.15);
            --secondary: #ff8f00;
            --secondary-light: #fff3e0;
            --accent: #ff6f00;
            --bg: #f8faf6;
            --bg-white: #ffffff;
            --bg-dark: #1a1a2e;
            --bg-card: #ffffff;
            --text: #1a1a2e;
            --text-light: #6b7280;
            --text-lighter: #9ca3af;
            --text-white: #ffffff;
            --border: #e5e7eb;
            --border-light: #f0f0f0;
            --radius: 16px;
            --radius-sm: 8px;
            --radius-lg: 24px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-primary: 0 8px 30px rgba(45, 138, 78, 0.25);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
            --section-spacing: 80px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
        }

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

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

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

        button {
            cursor: pointer;
            background: none;
        }
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        ul,
        ol {
            list-style: none;
        }

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

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

        .container-narrow {
            max-width: 880px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 通用间距 ===== */
        .section {
            padding: var(--section-spacing) 0;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
            color: var(--text);
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 640px;
            margin-bottom: 40px;
            line-height: 1.6;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

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

        /* ===== 徽章 / 标签 ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 100px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            background: var(--primary-bg);
            color: var(--primary-dark);
            border: 1px solid rgba(45, 138, 78, 0.15);
        }
        .badge-hot {
            background: #fef2f2;
            color: #dc2626;
            border-color: rgba(220, 38, 38, 0.15);
        }
        .badge-new {
            background: #e0f2fe;
            color: #0369a1;
            border-color: rgba(3, 105, 161, 0.15);
        }
        .badge-secondary {
            background: var(--secondary-light);
            color: #e65100;
            border-color: rgba(230, 81, 0, 0.15);
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: var(--shadow-primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 36px rgba(45, 138, 78, 0.3);
        }
        .btn-primary:active {
            transform: translateY(0);
        }

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

        .btn-secondary {
            background: var(--bg-white);
            color: var(--text);
            border-color: var(--border);
            box-shadow: var(--shadow);
        }
        .btn-secondary:hover {
            background: var(--bg);
            border-color: var(--text-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
        }

        /* ===== 卡片 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius) var(--radius) 0 0;
        }

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

        .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-title a {
            color: var(--text);
        }
        .card-title a:hover {
            color: var(--primary);
        }

        .card-text {
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 12px;
            font-size: 0.82rem;
            color: var(--text-lighter);
        }
        .card-meta i {
            font-size: 0.75rem;
        }

        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 10px;
        }
        .card-tags .tag {
            font-size: 0.7rem;
            padding: 2px 10px;
            border-radius: 100px;
            background: var(--primary-bg);
            color: var(--primary-dark);
            font-weight: 500;
        }

        /* ===== 网格 ===== */
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px) saturate(180%);
            -webkit-backdrop-filter: blur(16px) saturate(180%);
            border-bottom: 1px solid rgba(229, 231, 235, 0.5);
            transition: var(--transition);
        }
        .header.scrolled {
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
            background: rgba(255, 255, 255, 0.96);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.03em;
            flex-shrink: 0;
        }
        .logo i {
            color: var(--primary);
            font-size: 1.5rem;
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo span {
            color: var(--primary);
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-list a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 100px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
        }
        .nav-list a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .nav-list a.active {
            color: var(--primary-dark);
            background: var(--primary-bg);
            font-weight: 600;
        }
        .nav-list a i {
            font-size: 0.85rem;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-actions .search-toggle {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .nav-actions .search-toggle:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }

        .mobile-menu-btn {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--text);
            background: var(--bg);
            border: 1px solid var(--border);
        }

        /* ===== 移动端导航 ===== */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 999;
            padding: 24px;
            overflow-y: auto;
            opacity: 0;
            transform: translateY(-10px);
            transition: var(--transition);
        }
        .mobile-nav.open {
            opacity: 1;
            transform: translateY(0);
        }
        .mobile-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 20px;
            border-radius: var(--radius-sm);
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
            border-bottom: 1px solid var(--border-light);
        }
        .mobile-nav a:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .mobile-nav a.active {
            color: var(--primary-dark);
            background: var(--primary-bg);
            font-weight: 600;
        }
        .mobile-nav a i {
            width: 24px;
            color: var(--primary);
        }

        /* ===== Hero ===== */
        .hero {
            padding-top: calc(var(--header-height) + 20px);
            min-height: 88vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            background: linear-gradient(135deg, #1a3a2a 0%, #2d5a3e 50%, #1a3a2a 100%);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(45, 138, 78, 0.3), transparent 70%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 640px;
            padding: 60px 0;
        }
        .hero-content .badge {
            margin-bottom: 20px;
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(4px);
        }
        .hero-content h1 {
            font-size: 3.2rem;
            font-weight: 900;
            color: #fff;
            line-height: 1.15;
            letter-spacing: -0.03em;
            margin-bottom: 20px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }
        .hero-content h1 span {
            color: #81c784;
        }
        .hero-content p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 520px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .hero-actions .btn-white {
            background: #fff;
            color: var(--primary-dark);
            border-color: #fff;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
        }
        .hero-actions .btn-white:hover {
            background: var(--primary-bg);
            border-color: var(--primary-bg);
            transform: translateY(-2px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
        }
        .hero-actions .btn-ghost {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.4);
        }
        .hero-actions .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.6);
            transform: translateY(-2px);
        }

        .hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }
        .hero-stat {
            text-align: left;
        }
        .hero-stat .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .hero-stat .label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 4px;
        }

        .hero-visual {
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 48%;
            height: 70%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            background: url('/assets/images/coverpic/cover-1.png') center center / cover no-repeat;
            border: 2px solid rgba(255, 255, 255, 0.08);
        }
        .hero-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, transparent 40%, rgba(45, 138, 78, 0.2));
        }

        /* ===== 核心说明 ===== */
        .intro-section {
            background: var(--bg-white);
        }
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 4/3;
            background: url('/assets/images/coverpic/cover-2.png') center center / cover no-repeat;
        }
        .intro-text h2 {
            font-size: 2rem;
            margin-bottom: 16px;
        }
        .intro-text p {
            color: var(--text-light);
            margin-bottom: 16px;
            font-size: 1rem;
            line-height: 1.8;
        }
        .intro-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 24px;
        }
        .intro-feature {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 16px 18px;
            background: var(--primary-bg);
            border-radius: var(--radius-sm);
            border: 1px solid rgba(45, 138, 78, 0.1);
        }
        .intro-feature i {
            color: var(--primary);
            font-size: 1.2rem;
            margin-top: 2px;
            flex-shrink: 0;
        }
        .intro-feature strong {
            display: block;
            font-size: 0.95rem;
            margin-bottom: 4px;
        }
        .intro-feature span {
            font-size: 0.85rem;
            color: var(--text-light);
        }

        /* ===== 分类入口 ===== */
        .category-section {
            background: var(--bg);
        }
        .category-cards {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--bg-white);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .category-card .card-img {
            height: 180px;
            aspect-ratio: auto;
        }
        .category-card .card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .category-card .card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .category-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-light);
            flex: 1;
            margin-bottom: 14px;
        }
        .category-card .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
            font-size: 0.85rem;
            color: var(--text-lighter);
        }
        .category-card .card-footer i {
            transition: var(--transition);
        }
        .category-card:hover .card-footer i {
            transform: translateX(4px);
            color: var(--primary);
        }

        /* ===== 资讯列表 ===== */
        .news-section {
            background: var(--bg-white);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 24px;
        }
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .news-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
        }
        .news-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .news-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }
        .news-card .card-img-wrap .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(4px);
            color: var(--text);
        }
        .news-card .card-body {
            padding: 18px 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .card-body .card-title {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .card-body .card-text {
            font-size: 0.9rem;
            -webkit-line-clamp: 2;
            flex: 1;
        }
        .news-card .card-meta {
            margin-top: 14px;
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .news-card .card-meta .date {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .news-card .card-meta .cat {
            font-size: 0.75rem;
            padding: 2px 12px;
            border-radius: 100px;
            background: var(--primary-bg);
            color: var(--primary-dark);
        }

        .news-empty {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-light);
            grid-column: 1 / -1;
        }
        .news-empty i {
            font-size: 2.5rem;
            color: var(--text-lighter);
            margin-bottom: 16px;
            display: block;
        }
        .news-empty p {
            font-size: 1rem;
        }

        /* ===== 数据看板 ===== */
        .data-section {
            background: var(--bg-dark);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .data-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .data-section .section-title {
            color: #fff;
        }
        .data-section .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            position: relative;
            z-index: 2;
        }
        .data-item {
            text-align: center;
            padding: 32px 20px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }
        .data-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }
        .data-item .num {
            font-size: 2.6rem;
            font-weight: 900;
            color: #81c784;
            line-height: 1.2;
            margin-bottom: 8px;
        }
        .data-item .num span {
            font-size: 1.2rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.5);
        }
        .data-item .label {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
        }
        .data-item .desc {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
            margin-top: 6px;
        }

        /* ===== 使用流程 ===== */
        .process-section {
            background: var(--bg-white);
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            counter-reset: step;
        }
        .process-step {
            text-align: center;
            padding: 36px 24px;
            background: var(--bg);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
        }
        .process-step:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .process-step .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 1.2rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            box-shadow: var(--shadow-primary);
        }
        .process-step h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .process-step p {
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.6;
        }
        .process-step .step-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 16px;
            display: block;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border);
        }
        .faq-item.open {
            box-shadow: var(--shadow);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            cursor: pointer;
            transition: var(--transition);
            background: none;
            width: 100%;
            text-align: left;
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--text-lighter);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #1a3a2a 0%, #2d5a3e 50%, #1a3a2a 100%);
            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: 0.1;
            mix-blend-mode: overlay;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 60px 0;
        }
        .cta-content h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-content p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-content .btn-white {
            background: #fff;
            color: var(--primary-dark);
            border-color: #fff;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
        }
        .cta-content .btn-white:hover {
            background: var(--primary-bg);
            transform: translateY(-2px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
        }
        .cta-content .btn-ghost {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.4);
        }
        .cta-content .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.6);
        }

        /* ===== Footer ===== */
        .footer {
            background: #111827;
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand .logo i {
            color: #81c784;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-links a {
            display: block;
            padding: 4px 0;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: #81c784;
            padding-left: 4px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 16px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            font-size: 1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .footer-bottom {
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a:hover {
            color: #81c784;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero-visual {
                width: 40%;
                height: 60%;
            }
            .hero-content h1 {
                font-size: 2.6rem;
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .intro-image {
                aspect-ratio: 16/9;
                order: -1;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-spacing: 56px;
                --header-height: 64px;
            }
            .nav-list {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .mobile-nav {
                display: block;
            }
            .hero {
                min-height: auto;
                padding-top: calc(var(--header-height) + 16px);
                padding-bottom: 40px;
            }
            .hero-content {
                padding: 32px 0;
                max-width: 100%;
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .hero-content p {
                font-size: 1rem;
            }
            .hero-visual {
                display: none;
            }
            .hero-stats {
                gap: 20px;
                flex-wrap: wrap;
            }
            .hero-stat .num {
                font-size: 1.4rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .data-item .num {
                font-size: 2rem;
            }
            .intro-features {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-content h2 {
                font-size: 1.6rem;
            }
            .category-cards {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-content h1 {
                font-size: 1.6rem;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-stats {
                flex-direction: column;
                gap: 12px;
            }
            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-item {
                padding: 20px 12px;
            }
            .data-item .num {
                font-size: 1.6rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 0.95rem;
            }
            .faq-question {
                font-size: 0.92rem;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.88rem;
            }
            .logo {
                font-size: 1.1rem;
            }
            .logo i {
                font-size: 1.2rem;
            }
        }

        /* ===== 工具类 ===== */
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border-width: 0;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .gap-8 {
            gap: 8px;
        }
        .gap-12 {
            gap: 12px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #2d5a27;
            --primary-light: #4a8b3f;
            --primary-dark: #1a3a16;
            --secondary: #e8b84b;
            --secondary-light: #f0d48a;
            --accent: #c7423a;
            --bg-body: #f7f5f0;
            --bg-white: #ffffff;
            --bg-light: #f0eee8;
            --bg-dark: #1e2a1c;
            --text-dark: #1e1e1e;
            --text-body: #2e2e2e;
            --text-light: #6b6b6b;
            --text-white: #f9f9f9;
            --border: #d9d5cc;
            --border-light: #eae7e0;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.10);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.14);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --container: 1200px;
            --nav-height: 72px;
        }

        /* ===== 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);
            background: var(--bg-body);
            color: var(--text-body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-light); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: 1rem; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; color: var(--text-dark); font-weight: 700; }
        h1 { font-size: 2.75rem; }
        h2 { font-size: 2.125rem; margin-bottom: 1rem; }
        h3 { font-size: 1.5rem; margin-bottom: 0.75rem; }
        h4 { font-size: 1.125rem; margin-bottom: 0.5rem; }
        p { margin-bottom: 1rem; }

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

        /* ===== Header / Navigation ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--nav-height);
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000;
            transition: var(--transition);
        }
        .header.scrolled { box-shadow: var(--shadow-sm); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: -0.3px;
        }
        .logo i { font-size: 1.6rem; color: var(--secondary); }
        .logo span { color: var(--primary-light); }
        .logo:hover { color: var(--primary-dark); opacity: 0.9; }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-list a i { font-size: 0.9rem; color: var(--text-light); transition: var(--transition); }
        .nav-list a:hover,
        .nav-list a:focus-visible {
            background: var(--bg-light);
            color: var(--primary);
        }
        .nav-list a:hover i,
        .nav-list a:focus-visible i { color: var(--primary); }
        .nav-list a.active {
            background: var(--primary);
            color: var(--text-white);
        }
        .nav-list a.active i { color: var(--secondary); }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--secondary);
            color: var(--primary-dark) !important;
            padding: 8px 22px !important;
            border-radius: var(--radius-sm);
            font-weight: 600;
        }
        .nav-cta:hover {
            background: var(--secondary-light) !important;
            transform: translateY(-1px);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
        }
        .nav-toggle:hover { background: var(--bg-light); }

        /* ===== Mobile Nav ===== */
        @media (max-width: 880px) {
            .nav-list {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-list a {
                width: 100%;
                padding: 12px 16px;
                font-size: 1.05rem;
                border-radius: var(--radius-sm);
            }
            .nav-toggle { display: block; }
        }

        /* ===== Page Banner ===== */
        .page-banner {
            margin-top: var(--nav-height);
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 30%;
            background-blend-mode: overlay;
            padding: 80px 24px 60px;
            isolation: isolate;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(30,42,28,0.80) 0%, rgba(45,90,39,0.70) 100%);
            z-index: 1;
        }
        .page-banner > * { position: relative; z-index: 2; }
        .page-banner h1 {
            color: var(--text-white);
            font-size: 2.75rem;
            font-weight: 800;
            letter-spacing: 1px;
            text-shadow: 0 4px 20px rgba(0,0,0,0.3);
            margin-bottom: 12px;
        }
        .page-banner p {
            color: rgba(255,255,255,0.88);
            font-size: 1.15rem;
            max-width: 640px;
            margin: 0 auto 16px;
            line-height: 1.6;
        }
        .page-banner .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 8px;
            font-size: 0.92rem;
            color: rgba(255,255,255,0.7);
        }
        .page-banner .breadcrumb a { color: var(--secondary); }
        .page-banner .breadcrumb a:hover { color: var(--secondary-light); text-decoration: underline; }
        .page-banner .breadcrumb i { font-size: 0.75rem; margin: 0 4px; color: rgba(255,255,255,0.5); }

        @media (max-width: 640px) {
            .page-banner { min-height: 240px; padding: 60px 20px 40px; }
            .page-banner h1 { font-size: 1.85rem; }
            .page-banner p { font-size: 1rem; }
        }

        /* ===== Section Common ===== */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-dark h2,
        .section-dark h3,
        .section-dark .section-subtitle { color: var(--text-white); }
        .section-title {
            text-align: center;
            margin-bottom: 12px;
        }
        .section-subtitle {
            text-align: center;
            color: var(--text-light);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 48px;
            line-height: 1.6;
        }
        .section-dark .section-subtitle { color: rgba(255,255,255,0.72); }

        @media (max-width: 640px) {
            .section { padding: 48px 0; }
            .section-title { font-size: 1.65rem; }
            .section-subtitle { font-size: 0.95rem; margin-bottom: 32px; }
        }

        /* ===== Card Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .card-grid-2 {
            grid-template-columns: repeat(2, 1fr);
        }
        .card-grid-4 {
            grid-template-columns: repeat(4, 1fr);
        }

        @media (max-width: 1024px) {
            .card-grid-4 { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 820px) {
            .card-grid, .card-grid-2, .card-grid-4 { grid-template-columns: repeat(2, 1fr); gap: 20px; }
        }
        @media (max-width: 540px) {
            .card-grid, .card-grid-2, .card-grid-4 { grid-template-columns: 1fr; gap: 18px; }
        }

        /* ===== Card ===== */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--border);
        }
        .card-image {
            position: relative;
            width: 100%;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg-light);
        }
        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .card:hover .card-image img { transform: scale(1.05); }
        .card-image .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--primary);
            color: var(--text-white);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }
        .card-body {
            padding: 20px 22px 24px;
        }
        .card-body h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-body h3 a { color: var(--text-dark); }
        .card-body h3 a:hover { color: var(--primary); }
        .card-body p {
            color: var(--text-light);
            font-size: 0.92rem;
            margin-bottom: 12px;
            line-height: 1.6;
        }
        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.84rem;
            color: var(--text-light);
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
            margin-top: 4px;
        }
        .card-meta span { display: flex; align-items: center; gap: 6px; }
        .card-meta i { font-size: 0.8rem; color: var(--primary-light); }
        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 10px;
        }
        .card-tags .tag {
            font-size: 0.75rem;
            padding: 2px 12px;
            border-radius: 14px;
            background: var(--bg-light);
            color: var(--text-light);
            border: 1px solid var(--border-light);
        }

        /* ===== Feature / Icon Block ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .feature-item {
            text-align: center;
            padding: 32px 18px 28px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .feature-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border);
        }
        .feature-item .icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 16px;
            background: var(--bg-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--primary);
            transition: var(--transition);
        }
        .feature-item:hover .icon {
            background: var(--primary);
            color: var(--text-white);
        }
        .feature-item h4 { font-size: 1.1rem; margin-bottom: 6px; }
        .feature-item p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 0; }

        @media (max-width: 900px) { .feature-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; } }
        @media (max-width: 520px) { .feature-grid { grid-template-columns: 1fr; } }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            text-align: center;
        }
        .stat-item {
            padding: 28px 12px;
            background: rgba(255,255,255,0.08);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.12);
            backdrop-filter: blur(4px);
        }
        .stat-item .num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.2;
        }
        .stat-item .label {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.8);
            margin-top: 6px;
        }
        @media (max-width: 820px) { .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; } }
        @media (max-width: 520px) { .stats-grid { grid-template-columns: 1fr 1fr; } }

        /* ===== Timeline / List ===== */
        .topic-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .topic-item {
            display: flex;
            gap: 18px;
            align-items: flex-start;
            background: var(--bg-white);
            padding: 20px 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .topic-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--border);
        }
        .topic-item .num {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--text-white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.95rem;
        }
        .topic-item .content h4 { font-size: 1.05rem; margin-bottom: 4px; }
        .topic-item .content p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 0; }
        @media (max-width: 720px) { .topic-list { grid-template-columns: 1fr; } }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--border); }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            gap: 16px;
            user-select: none;
        }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--primary-light);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 22px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        /* ===== CTA ===== */
        .cta-section {
            text-align: center;
            padding: 80px 24px;
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            border-radius: var(--radius-lg);
            margin: 0 24px;
            position: relative;
            isolation: isolate;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(45,90,39,0.88) 0%, rgba(26,58,22,0.85) 100%);
            border-radius: var(--radius-lg);
            z-index: 1;
        }
        .cta-section > * { position: relative; z-index: 2; }
        .cta-section h2 {
            color: var(--text-white);
            font-size: 2rem;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255,255,255,0.85);
            font-size: 1.05rem;
            max-width: 520px;
            margin: 0 auto 28px;
        }
        .btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-primary {
            background: var(--secondary);
            color: var(--primary-dark);
        }
        .btn-primary:hover {
            background: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232,184,75,0.35);
            color: var(--primary-dark);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255,255,255,0.5);
        }
        .btn-outline:hover {
            background: rgba(255,255,255,0.12);
            border-color: var(--text-white);
            transform: translateY(-2px);
            color: var(--text-white);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 0.9rem;
        }
        @media (max-width: 640px) {
            .cta-section { padding: 48px 20px; margin: 0 12px; }
            .cta-section h2 { font-size: 1.5rem; }
            .btn { padding: 12px 24px; font-size: 0.95rem; }
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.75);
            padding: 60px 0 0;
            margin-top: 72px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .footer-brand .logo { color: var(--text-white); margin-bottom: 14px; }
        .footer-brand .logo span { color: var(--secondary); }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; margin-bottom: 16px; max-width: 340px; }
        .footer-social { display: flex; gap: 14px; }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.65);
            font-size: 1.15rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary-light);
            color: var(--text-white);
            transform: translateY(-3px);
        }
        .footer-links h4 {
            color: var(--text-white);
            font-size: 1rem;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-links a {
            display: block;
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-links a:hover { color: var(--secondary); padding-left: 4px; }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 0.84rem;
            color: rgba(255,255,255,0.5);
            gap: 12px;
        }
        .footer-bottom a { color: rgba(255,255,255,0.6); }
        .footer-bottom a:hover { color: var(--secondary); }
        @media (max-width: 860px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media (max-width: 540px) {
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .mb-16 { margin-bottom: 16px; }
        .gap-12 { gap: 12px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .tag-sm {
            display: inline-block;
            font-size: 0.75rem;
            padding: 2px 12px;
            border-radius: 14px;
            background: var(--bg-light);
            color: var(--text-light);
            border: 1px solid var(--border-light);
            margin-right: 4px;
        }

        /* ===== Focus ===== */
        a:focus-visible,
        button:focus-visible,
        .faq-question:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 3px;
        }

        /* ===== Responsive fine-tune ===== */
        @media (max-width: 480px) {
            .page-banner h1 { font-size: 1.5rem; }
            .section-title { font-size: 1.4rem; }
            .stat-item .num { font-size: 2rem; }
            .topic-item { padding: 16px 18px; }
            .card-body { padding: 16px 18px 20px; }
            .btn { padding: 10px 20px; font-size: 0.9rem; }
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a6b3c;
            --primary-dark: #0f4d2a;
            --primary-light: #2d8a5e;
            --secondary: #e07a2f;
            --secondary-light: #f0a45e;
            --accent: #d4a017;
            --bg-body: #f5f7f2;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #1a2e1a;
            --text-dark: #1a1a2e;
            --text-body: #2d3a3a;
            --text-light: #6b7a7a;
            --text-white: #f8faf8;
            --border: #dce5dc;
            --border-light: #eaf0ea;
            --shadow-sm: 0 2px 8px rgba(26, 107, 60, 0.08);
            --shadow-md: 0 6px 24px rgba(26, 107, 60, 0.12);
            --shadow-lg: 0 12px 40px rgba(26, 107, 60, 0.18);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-height: 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-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; transition: var(--transition); }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; color: var(--text-dark); font-weight: 700; }
        h1 { font-size: 2.4rem; }
        h2 { font-size: 2rem; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.15rem; }
        p { margin-bottom: 1rem; }
        :focus-visible { outline: 3px solid var(--secondary); outline-offset: 2px; border-radius: 4px; }

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

        /* ===== Header / Nav ===== */
        .header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 2px 20px rgba(0,0,0,0.04);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
            white-space: nowrap;
        }
        .logo i { font-size: 1.6rem; color: var(--secondary); }
        .logo span { color: var(--secondary); font-weight: 700; }
        .logo:hover { color: var(--primary); transform: scale(1.02); }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-xl);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-body);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-list a i { font-size: 0.85rem; color: var(--text-light); transition: var(--transition); }
        .nav-list a:hover {
            background: rgba(26,107,60,0.08);
            color: var(--primary);
        }
        .nav-list a:hover i { color: var(--primary); }
        .nav-list a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(26,107,60,0.25);
        }
        .nav-list a.active i { color: #fff; }
        .nav-cta {
            background: var(--secondary) !important;
            color: #fff !important;
            padding: 8px 22px !important;
            border-radius: var(--radius-xl) !important;
            font-weight: 600 !important;
            box-shadow: 0 4px 14px rgba(224,122,47,0.3);
        }
        .nav-cta i { color: #fff !important; }
        .nav-cta:hover {
            background: #c96a22 !important;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(224,122,47,0.4);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            cursor: pointer;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
        }
        .mobile-toggle:hover { background: rgba(0,0,0,0.05); }

        @media (max-width: 900px) {
            .nav-list { display: none; }
            .nav-list.mobile-open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(18px);
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md);
                animation: slideDown 0.25s ease;
            }
            .nav-list.mobile-open a { width: 100%; justify-content: center; padding: 12px 18px; }
            .mobile-toggle { display: block; }
        }
        @keyframes slideDown {
            from { opacity: 0; transform: translateY(-12px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* ===== Article Banner ===== */
        .article-banner {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, #0f3d2a 60%, #1a5a3a 100%);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .article-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(15,61,42,0.7) 0%, rgba(26,90,58,0.3) 100%);
        }
        .article-banner .container {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .article-banner .category-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--secondary);
            color: #fff;
            padding: 6px 18px;
            border-radius: var(--radius-xl);
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 16px;
            box-shadow: 0 4px 12px rgba(224,122,47,0.3);
        }
        .article-banner .category-tag i { font-size: 0.75rem; }
        .article-banner h1 {
            color: #fff;
            font-size: 2.6rem;
            font-weight: 800;
            max-width: 860px;
            line-height: 1.25;
            text-shadow: 0 2px 20px rgba(0,0,0,0.15);
            margin-bottom: 16px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            color: rgba(255,255,255,0.8);
            font-size: 0.92rem;
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta i { color: var(--secondary-light); font-size: 0.85rem; }
        .article-meta .author { color: var(--secondary-light); font-weight: 500; }

        @media (max-width: 768px) {
            .article-banner { padding: 60px 0 40px; min-height: 240px; }
            .article-banner h1 { font-size: 1.7rem; }
            .article-meta { gap: 12px; font-size: 0.82rem; flex-wrap: wrap; }
        }
        @media (max-width: 520px) {
            .article-banner h1 { font-size: 1.4rem; }
            .article-banner { padding: 44px 0 32px; }
            .article-meta { gap: 8px; font-size: 0.78rem; }
        }

        /* ===== Article Content ===== */
        .article-main {
            padding: 50px 0 60px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 48px;
            align-items: start;
        }
        .article-body {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 40px 44px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .article-body .cover-image {
            width: 100%;
            border-radius: var(--radius-sm);
            margin-bottom: 28px;
            box-shadow: var(--shadow-sm);
            max-height: 480px;
            object-fit: cover;
        }
        .article-body .content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-body);
        }
        .article-body .content p {
            margin-bottom: 1.3rem;
        }
        .article-body .content h2, .article-body .content h3 {
            margin-top: 2rem;
            margin-bottom: 0.8rem;
            color: var(--primary-dark);
        }
        .article-body .content img {
            border-radius: var(--radius-sm);
            margin: 1.5rem 0;
            box-shadow: var(--shadow-sm);
        }
        .article-body .content blockquote {
            border-left: 4px solid var(--secondary);
            background: rgba(224,122,47,0.06);
            padding: 16px 24px;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
            font-style: italic;
        }
        .article-body .content ul, .article-body .content ol {
            margin: 1rem 0 1rem 1.6rem;
        }
        .article-body .content li {
            margin-bottom: 0.5rem;
            list-style: disc;
        }
        .article-body .content a {
            color: var(--secondary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-body .content a:hover { color: var(--secondary); opacity: 0.8; }

        /* Tags & Share */
        .article-footer-bar {
            margin-top: 36px;
            padding-top: 28px;
            border-top: 1px solid var(--border-light);
            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 {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--bg-body);
            padding: 5px 14px;
            border-radius: var(--radius-xl);
            font-size: 0.82rem;
            color: var(--text-light);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .article-tags .tag i { color: var(--primary-light); font-size: 0.7rem; }
        .article-tags .tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .article-tags .tag:hover i { color: #fff; }
        .share-buttons {
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .share-buttons span { font-size: 0.85rem; color: var(--text-light); margin-right: 4px; }
        .share-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg-body);
            color: var(--text-light);
            border: 1px solid var(--border);
            transition: var(--transition);
            font-size: 0.95rem;
        }
        .share-btn:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-2px); }

        /* Sidebar */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary);
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--primary-dark);
        }
        .sidebar-card h3 i { color: var(--secondary); font-size: 1rem; }
        .sidebar-related-item {
            display: flex;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
            align-items: flex-start;
        }
        .sidebar-related-item:last-child { border-bottom: none; padding-bottom: 0; }
        .sidebar-related-item img {
            width: 72px;
            height: 54px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .sidebar-related-item .info { flex: 1; min-width: 0; }
        .sidebar-related-item .info a {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-dark);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.4;
        }
        .sidebar-related-item .info a:hover { color: var(--primary); }
        .sidebar-related-item .info .date {
            font-size: 0.75rem;
            color: var(--text-light);
            margin-top: 4px;
            display: block;
        }
        .sidebar-category-list a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.92rem;
            color: var(--text-body);
        }
        .sidebar-category-list a:last-child { border-bottom: none; }
        .sidebar-category-list a:hover { color: var(--primary); padding-left: 6px; }
        .sidebar-category-list a span {
            background: var(--bg-body);
            padding: 2px 12px;
            border-radius: var(--radius-xl);
            font-size: 0.78rem;
            color: var(--text-light);
        }

        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; gap: 32px; }
            .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
        }
        @media (max-width: 640px) {
            .article-body { padding: 24px 18px; }
            .article-sidebar { grid-template-columns: 1fr; }
            .article-footer-bar { flex-direction: column; align-items: flex-start; gap: 12px; }
            .share-buttons { width: 100%; justify-content: flex-start; }
        }

        /* ===== Navigation between articles ===== */
        .article-nav {
            margin-top: 40px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .article-nav a {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 22px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            color: var(--text-body);
        }
        .article-nav a:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .article-nav a .direction { font-size: 0.78rem; color: var(--text-light); text-transform: uppercase; letter-spacing: 1px; }
        .article-nav a .title { font-size: 0.92rem; font-weight: 600; color: var(--text-dark); display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
        .article-nav a i { font-size: 1.2rem; color: var(--primary); flex-shrink: 0; }
        .article-nav .prev { text-align: left; }
        .article-nav .next { text-align: right; flex-direction: row-reverse; }
        @media (max-width: 640px) {
            .article-nav { grid-template-columns: 1fr; }
        }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 50px 0 60px;
            background: var(--bg-body);
        }
        .related-section .section-title {
            text-align: center;
            margin-bottom: 36px;
        }
        .related-section .section-title h2 {
            font-size: 1.8rem;
            color: var(--primary-dark);
        }
        .related-section .section-title p {
            color: var(--text-light);
            margin-top: 6px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card .card-body {
            padding: 18px 20px 20px;
        }
        .related-card .card-body .cat {
            font-size: 0.75rem;
            color: var(--secondary);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .related-card .card-body h4 {
            font-size: 1rem;
            margin: 6px 0 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body h4 a { color: var(--text-dark); }
        .related-card .card-body h4 a:hover { color: var(--primary); }
        .related-card .card-body .date {
            font-size: 0.8rem;
            color: var(--text-light);
        }
        @media (max-width: 900px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 520px) {
            .related-grid { grid-template-columns: 1fr; }
            .related-card img { height: 200px; }
        }

        /* ===== CTA ===== */
        .article-cta {
            padding: 56px 0;
            background: linear-gradient(135deg, var(--primary-dark) 0%, #1a5a3a 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .article-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.08;
        }
        .article-cta .container { position: relative; z-index: 1; }
        .article-cta h2 { color: #fff; font-size: 2rem; margin-bottom: 12px; }
        .article-cta p { color: rgba(255,255,255,0.8); max-width: 600px; margin: 0 auto 24px; font-size: 1.05rem; }
        .article-cta .btn-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
        .article-cta .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--secondary);
            color: #fff;
            padding: 14px 34px;
            border-radius: var(--radius-xl);
            font-weight: 700;
            font-size: 1rem;
            box-shadow: 0 6px 24px rgba(224,122,47,0.35);
            transition: var(--transition);
        }
        .article-cta .btn-primary:hover { background: #c96a22; transform: translateY(-3px); box-shadow: 0 10px 30px rgba(224,122,47,0.45); color: #fff; }
        .article-cta .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            padding: 14px 34px;
            border-radius: var(--radius-xl);
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid rgba(255,255,255,0.4);
            transition: var(--transition);
        }
        .article-cta .btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; transform: translateY(-3px); color: #fff; }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
        }
        .footer .container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 1.4rem;
            margin-bottom: 14px;
            display: inline-flex;
        }
        .footer-brand .logo span { color: var(--secondary); }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 360px; color: rgba(255,255,255,0.6); }
        .footer-social { display: flex; gap: 12px; margin-top: 18px; }
        .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(255,255,255,0.7);
            font-size: 1.15rem;
            transition: var(--transition);
        }
        .footer-social a:hover { background: var(--secondary); color: #fff; transform: translateY(-3px); }
        .footer-links h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-links a {
            display: block;
            color: rgba(255,255,255,0.6);
            font-size: 0.88rem;
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-links a:hover { color: var(--secondary); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--secondary); }
        @media (max-width: 900px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .footer-brand { grid-column: 1 / -1; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== 404 / Not Found ===== */
        .not-found-wrap {
            text-align: center;
            padding: 100px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .not-found-wrap i { font-size: 4rem; color: var(--text-light); margin-bottom: 20px; display: block; }
        .not-found-wrap h2 { font-size: 1.8rem; color: var(--text-dark); margin-bottom: 10px; }
        .not-found-wrap p { color: var(--text-light); margin-bottom: 24px; }
        .not-found-wrap .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 12px 30px;
            border-radius: var(--radius-xl);
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-wrap .btn-back:hover { background: var(--primary-dark); transform: translateY(-2px); color: #fff; }

        /* ===== Responsive extras ===== */
        @media (max-width: 1024px) {
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
        }
        @media (max-width: 768px) {
            h1 { font-size: 1.6rem; }
            h2 { font-size: 1.35rem; }
        }
        @media (max-width: 520px) {
            h1 { font-size: 1.3rem; }
            h2 { font-size: 1.15rem; }
            .article-cta h2 { font-size: 1.4rem; }
            .article-cta .btn-primary, .article-cta .btn-outline { padding: 12px 24px; font-size: 0.9rem; width: 100%; justify-content: center; }
        }