/* roulang page: index */
/* ========== 设计变量 ========== */
        :root {
            --primary: #2d7d4e;
            --primary-dark: #1f5d38;
            --primary-light: #e8f5ee;
            --secondary: #d4a843;
            --secondary-light: #f5edd6;
            --accent: #e8744a;
            --bg: #f7faf8;
            --bg-card: #ffffff;
            --bg-dark: #1a2e24;
            --text: #1e2a24;
            --text-light: #5a6d62;
            --text-white: #f0f5f2;
            --border: #dce4df;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 8px 32px rgba(26, 46, 36, 0.08);
            --shadow-hover: 0 16px 48px rgba(26, 46, 36, 0.14);
            --transition: 0.30s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --header-h: 72px;
        }

        /* ========== Reset & Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }

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

        /* ========== Typography ========== */
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text);
            margin-bottom: 0.5rem;
        }
        .section-sub {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 640px;
            margin-bottom: 2.5rem;
        }
        .section-center {
            text-align: center;
        }
        .section-center .section-sub {
            margin-left: auto;
            margin-right: auto;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.7rem;
            }
            .section-sub {
                font-size: 1rem;
            }
        }

        /* ========== Buttons ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(45, 125, 78, 0.35);
        }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(45, 125, 78, 0.25);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: #d45a34;
            border-color: #d45a34;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232, 116, 74, 0.35);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 0.9rem;
        }
        .btn:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-h);
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 2px 24px rgba(26, 46, 36, 0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--primary-dark);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
        }
        .logo span {
            color: var(--text);
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            padding: 8px 18px;
            border-radius: 50px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-light);
            transition: all var(--transition);
            position: relative;
        }
        .nav-list a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-list a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-cta {
            margin-left: 12px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 6px;
            background: none;
            border: none;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text);
            border-radius: 4px;
            transition: all 0.3s;
        }
        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .nav-list {
                position: fixed;
                top: var(--header-h);
                left: 0;
                width: 100%;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 20px 24px 32px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
                box-shadow: 0 16px 40px rgba(26, 46, 36, 0.1);
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-list a {
                width: 100%;
                padding: 14px 18px;
                font-size: 1.05rem;
            }
            .nav-cta {
                margin-left: 0;
                margin-top: 8px;
                width: 100%;
            }
            .nav-cta .btn {
                width: 100%;
                justify-content: center;
            }
        }

        /* ========== Hero (分屏布局) ========== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding-top: var(--header-h);
            position: relative;
            overflow: hidden;
            background: var(--bg);
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            min-height: calc(100vh - var(--header-h));
            align-items: center;
        }
        .hero-content {
            padding: 60px 60px 60px 0;
            z-index: 2;
            position: relative;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary-light);
            color: var(--primary);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 24px;
            letter-spacing: 0.3px;
        }
        .hero-badge i {
            font-size: 0.75rem;
        }
        .hero-title {
            font-size: 3.4rem;
            font-weight: 800;
            line-height: 1.15;
            color: var(--text);
            margin-bottom: 20px;
        }
        .hero-title em {
            font-style: normal;
            color: var(--primary);
        }
        .hero-desc {
            font-size: 1.2rem;
            color: var(--text-light);
            max-width: 520px;
            margin-bottom: 36px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }
        .hero-stats {
            display: flex;
            gap: 36px;
            margin-top: 44px;
            padding-top: 32px;
            border-top: 1px solid var(--border);
        }
        .hero-stat h3 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .hero-stat p {
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .hero-visual {
            position: relative;
            height: 100%;
            min-height: 420px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--primary-light);
        }
        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }
        .hero-visual-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 46, 36, 0.15) 0%, transparent 60%);
            pointer-events: none;
        }
        .hero-visual-tag {
            position: absolute;
            bottom: 24px;
            left: 24px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            padding: 12px 20px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }
        .hero-visual-tag i {
            color: var(--accent);
        }

        @media (max-width: 1024px) {
            .hero-content {
                padding: 40px 40px 40px 0;
            }
            .hero-title {
                font-size: 2.8rem;
            }
        }
        @media (max-width: 768px) {
            .hero-grid {
                grid-template-columns: 1fr;
                min-height: auto;
            }
            .hero-content {
                padding: 40px 0 20px;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-desc {
                font-size: 1.05rem;
            }
            .hero-visual {
                min-height: 300px;
                border-radius: var(--radius);
                margin-top: 20px;
            }
            .hero-stats {
                gap: 24px;
                flex-wrap: wrap;
            }
            .hero-stat h3 {
                font-size: 1.5rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
        }

        /* ========== Section Spacing ========== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--primary-light);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-dark .section-sub {
            color: rgba(255, 255, 255, 0.7);
        }
        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
        }

        /* ========== 分类卡片网格 ========== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .card-category {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid var(--border);
            cursor: pointer;
            display: block;
        }
        .card-category:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }
        .card-category .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .card-category .card-body {
            padding: 24px 22px 28px;
        }
        .card-category .card-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 50px;
            margin-bottom: 12px;
        }
        .card-category .card-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        .card-category .card-desc {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.6;
        }
        .card-category .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 16px;
            font-size: 0.85rem;
            color: var(--text-light);
        }
        .card-category .card-meta i {
            color: var(--primary);
        }

        @media (max-width: 1024px) {
            .card-grid {
                gap: 20px;
            }
        }
        @media (max-width: 768px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .card-category .card-img {
                height: 150px;
            }
        }
        @media (max-width: 520px) {
            .card-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== 资讯列表 (CMS) ========== */
        .post-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .post-item {
            display: flex;
            align-items: flex-start;
            gap: 24px;
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 22px 24px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .post-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .post-item .post-thumb {
            width: 110px;
            height: 82px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--primary-light);
        }
        .post-item .post-info {
            flex: 1;
            min-width: 0;
        }
        .post-item .post-cat {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 2px 12px;
            border-radius: 50px;
            margin-bottom: 6px;
        }
        .post-item .post-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-item .post-title a {
            color: inherit;
        }
        .post-item .post-title a:hover {
            color: var(--primary);
        }
        .post-item .post-excerpt {
            font-size: 0.9rem;
            color: var(--text-light);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 6px;
        }
        .post-item .post-date {
            font-size: 0.8rem;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .post-item .post-date i {
            font-size: 0.7rem;
        }
        .post-empty {
            text-align: center;
            padding: 48px 24px;
            background: var(--bg-card);
            border-radius: var(--radius);
            color: var(--text-light);
            font-size: 1.05rem;
            border: 1px dashed var(--border);
        }
        .post-empty i {
            font-size: 2rem;
            color: var(--border);
            margin-bottom: 12px;
            display: block;
        }

        @media (max-width: 640px) {
            .post-item {
                flex-direction: column;
                padding: 18px;
            }
            .post-item .post-thumb {
                width: 100%;
                height: 160px;
            }
        }

        /* ========== 数据统计板块 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            text-align: center;
        }
        .stat-card {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(4px);
            padding: 36px 20px;
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.10);
            transition: all var(--transition);
        }
        .stat-card:hover {
            background: rgba(255, 255, 255, 0.10);
            transform: translateY(-4px);
        }
        .stat-card .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-card .stat-label {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
        }
        .stat-card .stat-icon {
            font-size: 2rem;
            color: rgba(255, 255, 255, 0.15);
            margin-bottom: 16px;
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-card .stat-number {
                font-size: 2rem;
            }
        }
        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            gap: 12px;
            user-select: none;
            background: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: var(--primary-light);
        }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--primary);
            transition: transform 0.3s;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ========== CTA ========== */
        .cta-block {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 64px 56px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.10;
            pointer-events: none;
        }
        .cta-block h2 {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
        }
        .cta-block p {
            font-size: 1.1rem;
            opacity: 0.85;
            max-width: 560px;
            margin: 0 auto 28px;
            position: relative;
        }
        .cta-block .btn {
            position: relative;
            background: #fff;
            color: var(--primary);
            border-color: #fff;
        }
        .cta-block .btn:hover {
            background: var(--secondary);
            border-color: var(--secondary);
            color: #fff;
        }

        @media (max-width: 768px) {
            .cta-block {
                padding: 40px 24px;
                border-radius: var(--radius);
            }
            .cta-block h2 {
                font-size: 1.6rem;
            }
            .cta-block p {
                font-size: 1rem;
            }
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-white);
            padding: 48px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 28px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand .logo span {
            color: rgba(255, 255, 255, 0.8);
        }
        .footer-brand p {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
            line-height: 1.7;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
            color: #fff;
        }
        .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            padding: 5px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: var(--secondary);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a:hover {
            color: var(--secondary);
        }
        .footer-social {
            display: flex;
            gap: 14px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            transition: all var(--transition);
            font-size: 1rem;
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ========== 回到顶部 ========== */
        .back-top {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            box-shadow: 0 4px 16px rgba(45, 125, 78, 0.30);
            opacity: 0;
            pointer-events: none;
            transition: all var(--transition);
            z-index: 999;
            border: none;
            cursor: pointer;
        }
        .back-top.visible {
            opacity: 1;
            pointer-events: auto;
        }
        .back-top:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 8px 28px rgba(45, 125, 78, 0.40);
        }

        /* ========== 分隔装饰 ========== */
        .divider {
            width: 60px;
            height: 4px;
            background: var(--secondary);
            border-radius: 4px;
            margin: 12px 0 24px;
        }
        .section-center .divider {
            margin: 12px auto 24px;
        }

        /* ========== 标签徽章 ========== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            background: var(--primary-light);
            color: var(--primary);
        }
        .badge-hot {
            background: #fee8e0;
            color: var(--accent);
        }
        .badge-new {
            background: #e0f0e8;
            color: var(--primary);
        }

        /* ========== 响应式微调 ========== */
        @media (max-width: 480px) {
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-stats {
                flex-direction: column;
                gap: 12px;
            }
            .hero-stat {
                display: flex;
                align-items: center;
                gap: 12px;
            }
            .hero-stat h3 {
                font-size: 1.3rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
        }

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

        /* ========== 选择文本 ========== */
        ::selection {
            background: var(--primary);
            color: #fff;
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a5c3a;
            --primary-light: #2d8a57;
            --primary-dark: #0f3d26;
            --secondary: #e8b84b;
            --secondary-light: #f0d08a;
            --accent: #c0392b;
            --bg-body: #f8faf9;
            --bg-card: #ffffff;
            --bg-dark: #0f3d26;
            --bg-section-alt: #eef5f1;
            --text-primary: #1a2a22;
            --text-secondary: #3d5a4b;
            --text-muted: #7a9a8a;
            --text-light: #ffffff;
            --border-color: #dce8e0;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(26, 92, 58, 0.06);
            --shadow-md: 0 8px 30px rgba(26, 92, 58, 0.10);
            --shadow-lg: 0 16px 48px rgba(26, 92, 58, 0.14);
            --shadow-hover: 0 20px 50px rgba(26, 92, 58, 0.18);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --container-max: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
        }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-light); }
        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; }
        button { cursor: pointer; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        h1 { font-size: clamp(1.8rem, 4.5vw, 3rem); }
        h2 { font-size: clamp(1.5rem, 3.2vw, 2.4rem); }
        h3 { font-size: clamp(1.2rem, 2.2vw, 1.6rem); }
        h4 { font-size: 1.15rem; }
        p { margin-bottom: 1em; }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container { padding: 0 16px; }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0; left: 0; right: 0;
            height: var(--header-h);
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            transition: var(--transition);
        }
        .site-header.scrolled { box-shadow: var(--shadow-sm); }
        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
        }
        .logo .logo-icon {
            width: 38px; height: 38px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .logo span { color: var(--secondary); font-weight: 700; }
        .logo:hover { color: var(--primary-dark); }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .nav-list a:hover { color: var(--primary); background: rgba(26,92,58,0.06); }
        .nav-list a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(26,92,58,0.25);
        }
        .nav-list a.active:hover { color: #fff; background: var(--primary-light); }
        .nav-cta { margin-left: 12px; }
        .nav-cta .btn { padding: 8px 24px; font-size: 0.9rem; border-radius: 50px; }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
        }
        .nav-toggle span {
            width: 26px; height: 3px;
            background: var(--text-primary);
            border-radius: 3px;
            transition: var(--transition);
        }
        .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px,6px); }
        .nav-toggle.active span:nth-child(2) { opacity: 0; }
        .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-6px); }

        @media (max-width: 900px) {
            .nav-toggle { display: flex; }
            .nav-list {
                position: fixed;
                top: var(--header-h); left: 0; right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 20px 24px 30px;
                gap: 6px;
                box-shadow: var(--shadow-md);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-bottom: 2px solid var(--border-color);
            }
            .nav-list.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
            .nav-list a { width: 100%; text-align: center; padding: 12px; font-size: 1.05rem; }
            .nav-cta { margin-left: 0; width: 100; }
            .nav-cta .btn { width: 100%; text-align: center; }
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-md);
            transition: var(--transition);
            border: 2px solid transparent;
            cursor: pointer;
            line-height: 1.2;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover { background: var(--primary-light); border-color: var(--primary-light); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(26,92,58,0.3); }
        .btn-secondary {
            background: var(--secondary);
            color: var(--text-primary);
            border-color: var(--secondary);
        }
        .btn-secondary:hover { background: var(--secondary-light); border-color: var(--secondary-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232,184,75,0.3); }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
        .btn-sm { padding: 8px 20px; font-size: 0.9rem; border-radius: var(--radius-sm); }
        .btn-lg { padding: 18px 44px; font-size: 1.1rem; border-radius: var(--radius-lg); }
        .btn:focus-visible { outline: 3px solid var(--secondary); outline-offset: 2px; }

        /* ===== Breadcrumb ===== */
        .breadcrumb-bar {
            background: var(--bg-section-alt);
            padding: 16px 0;
            border-bottom: 1px solid var(--border-color);
            margin-top: var(--header-h);
        }
        .breadcrumb-inner {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb-inner a { color: var(--primary); font-weight: 500; }
        .breadcrumb-inner a:hover { color: var(--primary-light); text-decoration: underline; }
        .breadcrumb-inner .sep { color: var(--text-muted); }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative;
            padding: 60px 0 40px;
            background: var(--bg-dark);
            background-image: linear-gradient(135deg, rgba(15,61,38,0.92) 0%, rgba(26,92,58,0.88) 100%), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            color: var(--text-light);
            margin-top: var(--header-h);
        }
        .article-hero .container { position: relative; z-index: 2; }
        .article-hero h1 {
            color: #fff;
            max-width: 900px;
            margin-bottom: 16px;
            font-size: clamp(1.6rem, 3.8vw, 2.8rem);
            text-shadow: 0 2px 12px rgba(0,0,0,0.15);
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
            font-size: 0.95rem;
            color: rgba(255,255,255,0.85);
        }
        .article-meta .tag {
            background: var(--secondary);
            color: var(--text-primary);
            padding: 4px 16px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
        }
        .article-meta i { margin-right: 6px; }
        .article-hero .overlay { display: none; }

        /* ===== Article Body ===== */
        .article-section {
            padding: 50px 0 80px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
            align-items: start;
        }
        .article-main {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }
        .article-main .content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-secondary);
        }
        .article-main .content h2,
        .article-main .content h3 {
            margin-top: 1.8em;
            margin-bottom: 0.6em;
            color: var(--text-primary);
        }
        .article-main .content p {
            margin-bottom: 1.2em;
        }
        .article-main .content ul,
        .article-main .content ol {
            margin: 1em 0;
            padding-left: 1.6em;
        }
        .article-main .content li {
            margin-bottom: 0.5em;
            list-style: disc;
        }
        .article-main .content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-main .content a:hover { color: var(--primary-light); }
        .article-main .content img {
            border-radius: var(--radius-md);
            margin: 1.5em 0;
            box-shadow: var(--shadow-sm);
        }
        .article-main .content blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            margin: 1.5em 0;
            background: var(--bg-section-alt);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-secondary);
        }
        .article-not-found {
            text-align: center;
            padding: 80px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
        }
        .article-not-found i { font-size: 3rem; color: var(--text-muted); margin-bottom: 20px; }
        .article-not-found h2 { margin-bottom: 12px; }
        .article-not-found p { color: var(--text-muted); margin-bottom: 24px; }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px 22px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h4 {
            font-size: 1.05rem;
            margin-bottom: 16px;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h4 i { color: var(--primary); }
        .sidebar-list a {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .sidebar-list a:last-child { border-bottom: none; }
        .sidebar-list a:hover { padding-left: 6px; }
        .sidebar-list .num {
            width: 28px; height: 28px;
            background: var(--bg-section-alt);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--primary);
            flex-shrink: 0;
        }
        .sidebar-list .info { flex: 1; }
        .sidebar-list .info .title { font-weight: 600; font-size: 0.92rem; color: var(--text-primary); display: block; }
        .sidebar-list .info .date { font-size: 0.8rem; color: var(--text-muted); }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: #fff;
            border: none;
        }
        .sidebar-cta h4 { color: #fff; }
        .sidebar-cta h4 i { color: var(--secondary); }
        .sidebar-cta p { color: rgba(255,255,255,0.85); font-size: 0.92rem; margin-bottom: 16px; }
        .sidebar-cta .btn { width: 100%; background: var(--secondary); color: var(--text-primary); border: none; }
        .sidebar-cta .btn:hover { background: var(--secondary-light); transform: translateY(-2px); }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg-section-alt);
        }
        .related-section h2 {
            text-align: center;
            margin-bottom: 36px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card .body {
            padding: 18px 20px 22px;
        }
        .related-card .body h3 {
            font-size: 1.05rem;
            margin-bottom: 8px;
        }
        .related-card .body h3 a { color: var(--text-primary); }
        .related-card .body h3 a:hover { color: var(--primary); }
        .related-card .body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .body .meta {
            font-size: 0.82rem;
            color: var(--text-muted);
            display: flex;
            gap: 12px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.85);
            padding: 60px 0 30px;
        }
        .site-footer .logo { color: #fff; margin-bottom: 16px; }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand p { font-size: 0.95rem; color: rgba(255,255,255,0.7); max-width: 360px; line-height: 1.7; }
        .footer-col h4 {
            color: #fff;
            font-size: 1.05rem;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0; left: 0;
            width: 32px; height: 3px;
            background: var(--secondary);
            border-radius: 3px;
        }
        .footer-col a {
            display: block;
            padding: 5px 0;
            color: rgba(255,255,255,0.7);
            font-size: 0.92rem;
        }
        .footer-col a:hover { color: var(--secondary); padding-left: 4px; }
        .footer-col a i { width: 20px; margin-right: 6px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
        }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            width: 36px; height: 36px;
            background: rgba(255,255,255,0.08);
            border-radius: 50%;
            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(--secondary); color: var(--text-primary); transform: translateY(-2px); }

        @media (max-width: 900px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-main { padding: 24px 20px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 640px) {
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .article-hero { padding: 40px 0 30px; }
            .article-meta { flex-direction: column; gap: 10px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

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

        /* ===== Focus visible ===== */
        a:focus-visible, button:focus-visible, .btn:focus-visible { outline: 3px solid var(--secondary); outline-offset: 2px; }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a5c3a;
            --primary-light: #2d8a57;
            --primary-dark: #0f3d26;
            --secondary: #e8b84b;
            --secondary-light: #f0d48a;
            --accent: #d4783a;
            --bg-light: #f7f5f0;
            --bg-white: #ffffff;
            --bg-dark: #1a1a1a;
            --text-dark: #1e2a24;
            --text-body: #3d4f44;
            --text-light: #7a8f82;
            --text-white: #f0f0f0;
            --border-light: #e2ddd0;
            --border-card: #eae5d8;
            --shadow-sm: 0 2px 12px rgba(26, 92, 58, 0.06);
            --shadow-md: 0 8px 32px rgba(26, 92, 58, 0.10);
            --shadow-lg: 0 20px 60px rgba(26, 92, 58, 0.14);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-height: 72px;
            --font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }

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

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* ===== Header & Navigation ===== */
        .site-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);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
            transition: background var(--transition), box-shadow var(--transition);
        }
        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: -0.3px;
            flex-shrink: 0;
        }
        .logo .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            transition: transform var(--transition);
        }
        .logo:hover .logo-icon {
            transform: scale(1.06) rotate(-4deg);
        }
        .logo span {
            color: var(--primary-light);
            font-weight: 600;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            transition: background var(--transition), color var(--transition);
            white-space: nowrap;
        }
        .nav-list a:hover {
            background: rgba(26, 92, 58, 0.08);
            color: var(--primary);
        }
        .nav-list a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(26, 92, 58, 0.25);
        }
        .nav-list a.active:hover {
            background: var(--primary-light);
            color: #fff;
        }
        .nav-cta .btn {
            margin-left: 6px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            background: rgba(26, 92, 58, 0.06);
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-dark);
            border-radius: 4px;
            transition: transform var(--transition), opacity var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(26, 92, 58, 0.12);
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            border: 2px solid transparent;
            background: var(--primary);
            color: #fff;
            line-height: 1.4;
            text-align: center;
            justify-content: center;
        }
        .btn:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 92, 58, 0.25);
            color: #fff;
        }
        .btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(26, 92, 58, 0.15);
        }
        .btn:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
        }
        .btn-secondary {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: #c06a30;
            color: #fff;
            box-shadow: 0 8px 24px rgba(212, 120, 58, 0.30);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 0.9rem;
        }
        .btn-lg {
            padding: 16px 40px;
            font-size: 1.1rem;
        }

        /* ===== Badges / Tags ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(26, 92, 58, 0.10);
            color: var(--primary);
            letter-spacing: 0.3px;
            border: 1px solid rgba(26, 92, 58, 0.15);
        }
        .badge-accent {
            background: rgba(212, 120, 58, 0.12);
            color: var(--accent);
            border-color: rgba(212, 120, 58, 0.20);
        }
        .badge-light {
            background: rgba(255, 255, 255, 0.20);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.25);
        }

        /* ===== Hero / Banner ===== */
        .page-banner {
            position: relative;
            padding: 100px 0 80px;
            background: var(--primary-dark);
            color: #fff;
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .page-banner .bg-overlay {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center 30%;
            background-repeat: no-repeat;
            opacity: 0.35;
            mix-blend-mode: overlay;
        }
        .page-banner .bg-overlay::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 61, 38, 0.70) 0%, rgba(26, 92, 58, 0.50) 100%);
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.20);
        }
        .page-banner p {
            font-size: 1.2rem;
            max-width: 680px;
            margin: 0 auto 24px;
            opacity: 0.90;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.92);
        }
        .page-banner .banner-meta {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-top: 12px;
        }
        .page-banner .banner-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.80);
        }
        .page-banner .banner-meta i {
            color: var(--secondary);
        }

        /* ===== Page Sections ===== */
        .section {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-header h2 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-header p {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-header .badge {
            margin-bottom: 12px;
        }
        .section-bg-alt {
            background: var(--bg-white);
        }
        .section-bg-dark {
            background: var(--primary-dark);
            color: #fff;
        }
        .section-bg-dark .section-header h2 {
            color: #fff;
        }
        .section-bg-dark .section-header p {
            color: rgba(255, 255, 255, 0.80);
        }

        /* ===== Cards Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-card);
            transition: transform var(--transition), box-shadow var(--transition);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .card-img {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--border-light);
        }
        .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card:hover .card-img img {
            transform: scale(1.05);
        }
        .card-img .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
        }
        .card-body {
            padding: 24px 24px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-dark);
        }
        .card-body p {
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 14px;
        }
        .card-body .card-meta i {
            color: var(--primary);
            width: 16px;
        }
        .card-body .btn {
            align-self: flex-start;
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            background: rgba(255, 255, 255, 0.10);
            backdrop-filter: blur(8px);
            border-radius: var(--radius-md);
            padding: 32px 20px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            transition: background var(--transition), transform var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.16);
            transform: translateY(-4px);
        }
        .stat-item .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-item .stat-label {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.85);
            font-weight: 500;
        }
        .stat-item .stat-icon {
            font-size: 2rem;
            color: rgba(255, 255, 255, 0.30);
            margin-bottom: 12px;
        }

        /* ===== Timeline / Process ===== */
        .process-list {
            display: flex;
            flex-direction: column;
            gap: 32px;
            max-width: 720px;
            margin: 0 auto;
        }
        .process-item {
            display: flex;
            gap: 24px;
            align-items: flex-start;
            background: var(--bg-white);
            padding: 28px 32px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-card);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .process-item:hover {
            transform: translateX(6px);
            box-shadow: var(--shadow-md);
        }
        .process-item .step-number {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 800;
        }
        .process-item .step-content h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-dark);
        }
        .process-item .step-content p {
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            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-card);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 20px 24px;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: rgba(26, 92, 58, 0.04);
        }
        .faq-question i {
            color: var(--primary);
            font-size: 1.1rem;
            transition: transform 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 24px;
            color: var(--text-light);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-block {
            text-align: center;
            padding: 72px 40px;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .cta-block .container {
            position: relative;
            z-index: 2;
        }
        .cta-block h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-block p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .cta-block .btn {
            background: var(--secondary);
            color: var(--text-dark);
            font-weight: 700;
            border: none;
        }
        .cta-block .btn:hover {
            background: var(--secondary-light);
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(232, 184, 75, 0.35);
        }
        .cta-block .btn-secondary {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.30);
            color: #fff;
        }
        .cta-block .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.10);
            border-color: rgba(255, 255, 255, 0.50);
            color: #fff;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.80);
            padding: 60px 0 32px;
        }
        .site-footer .logo {
            color: #fff;
            margin-bottom: 16px;
        }
        .site-footer .logo span {
            color: var(--secondary);
        }
        .site-footer .logo .logo-icon {
            background: var(--secondary);
            color: var(--text-dark);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand p {
            font-size: 0.95rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 36px;
            height: 3px;
            background: var(--secondary);
            border-radius: 4px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.95rem;
            padding: 5px 0;
            transition: color var(--transition), padding-left var(--transition);
        }
        .footer-col a:hover {
            color: var(--secondary);
            padding-left: 6px;
        }
        .footer-col a i {
            width: 20px;
            color: var(--secondary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.50);
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.70);
            font-size: 1.15rem;
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }
        .footer-social a:hover {
            background: var(--secondary);
            color: var(--text-dark);
            transform: translateY(-3px);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .page-banner h1 {
                font-size: 2.6rem;
            }
        }

        @media (max-width: 768px) {
            .nav-list {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 20px 24px 28px;
                gap: 6px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
                transform: translateY(-110%);
                opacity: 0;
                transition: transform 0.4s ease, opacity 0.3s ease;
                pointer-events: none;
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-list a {
                padding: 12px 20px;
                font-size: 1.05rem;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav-list .nav-cta {
                width: 100%;
                margin-top: 8px;
            }
            .nav-list .nav-cta .btn {
                width: 100%;
                justify-content: center;
            }
            .nav-toggle {
                display: flex;
            }
            .page-banner {
                padding: 80px 0 60px;
                min-height: 300px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .page-banner p {
                font-size: 1rem;
            }
            .section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 1.8rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item {
                padding: 24px 16px;
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }
            .process-item {
                flex-direction: column;
                align-items: flex-start;
                padding: 20px 24px;
            }
            .process-item .step-number {
                width: 44px;
                height: 44px;
                font-size: 1.1rem;
            }
            .cta-block {
                padding: 48px 24px;
            }
            .cta-block h2 {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .page-banner .banner-meta {
                flex-direction: column;
                gap: 8px;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item .stat-number {
                font-size: 1.6rem;
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 1rem;
            }
        }

        /* ===== focus-visible accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
        }

        /* ===== scrollbar ===== */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-light);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border-card);
            border-radius: 8px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-light);
        }

        /* ===== Skeleton / extras ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .gap-12 {
            gap: 12px;
        }
        .flex-center {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }