/* roulang page: index */
:root {
            --color-primary: #1a2d47;
            --color-primary-light: #243b5e;
            --color-primary-dark: #0f1c2e;
            --color-accent: #b8943e;
            --color-accent-light: #d4b05a;
            --color-accent-dark: #8a6d2b;
            --color-bg: #f7f5f0;
            --color-bg-white: #ffffff;
            --color-bg-gray: #eef0f2;
            --color-bg-dark: #1a2d47;
            --color-text: #2d3748;
            --color-text-light: #5a6c7d;
            --color-text-lighter: #8899a8;
            --color-text-on-dark: #e8ecf1;
            --color-border: #dde2e8;
            --color-border-light: #eef1f5;
            --color-success: #3b8c5c;
            --color-warning: #d4952b;
            --color-error: #c0392b;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50px;
            --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 30px rgba(0,0,0,0.10);
            --shadow-xl: 0 12px 40px rgba(0,0,0,0.14);
            --shadow-nav: 0 2px 20px rgba(0,0,0,0.07);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
            --max-width: 1200px;
            --nav-height: 76px;
            --section-gap: 72px;
        }

        *, *::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(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

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

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

        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        ul, ol {
            list-style: none;
        }

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

        .container--narrow {
            max-width: 900px;
        }

        .container--wide {
            max-width: 1320px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-bg-white);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-nav);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            gap: 20px;
            height: 100%;
        }

        .nav-logo {
            flex-shrink: 0;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
        }

        .nav-logo:hover {
            color: var(--color-accent);
        }

        .nav-logo-icon {
            width: 38px;
            height: 38px;
            background: var(--color-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-search-wrap {
            flex: 1;
            max-width: 480px;
            position: relative;
            margin: 0 auto;
        }

        .nav-search-input {
            width: 100%;
            height: 44px;
            padding: 0 48px 0 20px;
            border: 2px solid var(--color-border);
            border-radius: var(--radius-full);
            background: var(--color-bg);
            font-size: 0.95rem;
            color: var(--color-text);
            transition: all var(--transition-base);
            outline: none;
        }

        .nav-search-input::placeholder {
            color: var(--color-text-lighter);
        }

        .nav-search-input:focus {
            border-color: var(--color-accent);
            background: var(--color-bg-white);
            box-shadow: 0 0 0 4px rgba(184,148,62,0.08);
        }

        .nav-search-btn {
            position: absolute;
            right: 4px;
            top: 50%;
            transform: translateY(-50%);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--color-accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }

        .nav-search-btn:hover {
            background: var(--color-accent-dark);
            transform: translateY(-50%) scale(1.04);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }

        .nav-link {
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text-light);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-link:hover {
            color: var(--color-primary);
            background: var(--color-bg);
        }

        .nav-link.active {
            color: var(--color-primary);
            background: var(--color-bg);
            font-weight: 600;
        }

        .nav-link-category {
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-accent-dark);
            background: rgba(184,148,62,0.08);
            transition: all var(--transition-fast);
            white-space: nowrap;
            border: 1px solid transparent;
        }

        .nav-link-category:hover {
            background: rgba(184,148,62,0.16);
            border-color: var(--color-accent);
            color: var(--color-accent-dark);
        }

        .nav-mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            border: 1.5px solid var(--color-border);
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--color-text);
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }

        .nav-mobile-toggle:hover {
            background: var(--color-bg);
            border-color: var(--color-text-light);
        }

        /* ========== HERO ========== */
        .hero {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            background: var(--color-primary-dark) url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            background-blend-mode: overlay;
            padding: 60px 0;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,28,46,0.88) 0%, rgba(26,45,71,0.72) 40%, rgba(26,45,71,0.55) 100%);
            z-index: 1;
        }

        .hero .container {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            background: rgba(255,255,255,0.1);
            border: 1px solid rgba(255,255,255,0.22);
            border-radius: var(--radius-full);
            color: var(--color-accent-light);
            font-size: 0.88rem;
            font-weight: 500;
            margin-bottom: 28px;
            backdrop-filter: blur(6px);
        }

        .hero-badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.4); }
        }

        .hero-title {
            font-size: 2.9rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: 1px;
            max-width: 700px;
        }

        .hero-title span {
            color: var(--color-accent-light);
        }

        .hero-desc {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.78);
            line-height: 1.7;
            max-width: 580px;
            margin-bottom: 36px;
        }

        .hero-search {
            width: 100%;
            max-width: 520px;
            position: relative;
        }

        .hero-search-input {
            width: 100%;
            height: 54px;
            padding: 0 56px 0 24px;
            border: 2px solid rgba(255,255,255,0.3);
            border-radius: var(--radius-full);
            background: rgba(255,255,255,0.12);
            backdrop-filter: blur(8px);
            font-size: 1.02rem;
            color: #fff;
            outline: none;
            transition: all var(--transition-base);
        }

        .hero-search-input::placeholder {
            color: rgba(255,255,255,0.55);
        }

        .hero-search-input:focus {
            border-color: var(--color-accent);
            background: rgba(255,255,255,0.18);
            box-shadow: 0 0 0 6px rgba(184,148,62,0.10);
        }

        .hero-search-btn {
            position: absolute;
            right: 6px;
            top: 50%;
            transform: translateY(-50%);
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--color-accent);
            color: #fff;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-fast);
        }

        .hero-search-btn:hover {
            background: var(--color-accent-light);
            transform: translateY(-50%) scale(1.05);
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 24px;
            justify-content: center;
        }

        .hero-tag {
            padding: 6px 16px;
            border-radius: var(--radius-full);
            background: rgba(255,255,255,0.08);
            color: rgba(255,255,255,0.7);
            font-size: 0.85rem;
            border: 1px solid rgba(255,255,255,0.15);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .hero-tag:hover {
            background: rgba(255,255,255,0.16);
            color: #fff;
            border-color: rgba(255,255,255,0.35);
        }

        /* ========== SECTION COMMONS ========== */
        .section {
            padding: var(--section-gap) 0;
        }

        .section--gray {
            background: var(--color-bg-gray);
        }

        .section--dark {
            background: var(--color-bg-dark);
            color: var(--color-text-on-dark);
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent-dark);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .section--dark .section-title {
            color: #fff;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--color-text-light);
            max-width: 560px;
            margin: 0 auto;
        }

        .section--dark .section-desc {
            color: rgba(255,255,255,0.65);
        }

        /* ========== CARDS GRID ========== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .cards-grid--4 {
            grid-template-columns: repeat(4, 1fr);
        }

        .cards-grid--2 {
            grid-template-columns: repeat(2, 1fr);
        }

        .card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 20px;
            flex-shrink: 0;
        }

        .card-icon--blue {
            background: #e8f0fa;
            color: #3b6db5;
        }

        .card-icon--gold {
            background: #faf3e4;
            color: #b8943e;
        }

        .card-icon--green {
            background: #e6f4ec;
            color: #3b8c5c;
        }

        .card-icon--purple {
            background: #f0e8f8;
            color: #6b4d9a;
        }

        .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .card-text {
            font-size: 0.93rem;
            color: var(--color-text-light);
            line-height: 1.65;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-accent-dark);
            transition: gap var(--transition-fast);
        }

        .card-link:hover {
            gap: 10px;
            color: var(--color-accent);
        }

        .card-link i {
            font-size: 0.75rem;
        }

        /* ========== IMAGE CARD ========== */
        .card-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--color-bg-white);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }

        .card-image:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .card-image-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        .card-image-body {
            padding: 22px 20px;
        }

        .card-image-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(184,148,62,0.1);
            color: var(--color-accent-dark);
            margin-bottom: 10px;
        }

        .card-image-title {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .card-image-text {
            font-size: 0.88rem;
            color: var(--color-text-light);
            line-height: 1.6;
        }

        /* ========== STATS ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            text-align: center;
        }

        .stat-item {
            padding: 24px 16px;
        }

        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--color-accent-light);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.7);
            font-weight: 500;
        }

        /* ========== NEWS LIST ========== */
        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .news-item {
            display: flex;
            gap: 18px;
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            padding: 20px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            align-items: flex-start;
        }

        .news-item:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
            transform: translateY(-2px);
        }

        .news-item-img {
            width: 140px;
            height: 100px;
            border-radius: var(--radius-md);
            object-fit: cover;
            flex-shrink: 0;
        }

        .news-item-content {
            flex: 1;
            min-width: 0;
        }

        .news-item-category {
            display: inline-block;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(184,148,62,0.1);
            color: var(--color-accent-dark);
            margin-bottom: 8px;
        }

        .news-item-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.45;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-item-title a:hover {
            color: var(--color-accent);
        }

        .news-item-excerpt {
            font-size: 0.85rem;
            color: var(--color-text-light);
            line-height: 1.55;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
        }

        .news-item-meta {
            font-size: 0.8rem;
            color: var(--color-text-lighter);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .news-item-meta i {
            font-size: 0.7rem;
        }

        .news-empty {
            text-align: center;
            padding: 60px 20px;
            color: var(--color-text-light);
            font-size: 1rem;
            grid-column: 1 / -1;
        }

        .news-empty i {
            font-size: 2.5rem;
            color: var(--color-border);
            display: block;
            margin-bottom: 16px;
        }

        /* ========== STEPS ========== */
        .steps-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            counter-reset: step;
        }

        .step-item {
            position: relative;
            padding: 36px 28px 28px;
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            text-align: center;
            counter-increment: step;
            transition: all var(--transition-base);
        }

        .step-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: transparent;
        }

        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            font-size: 1.2rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
        }

        .step-item:nth-child(2) .step-number { background: #3b6db5; }
        .step-item:nth-child(3) .step-number { background: var(--color-accent); }

        .step-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        .step-text {
            font-size: 0.9rem;
            color: var(--color-text-light);
            line-height: 1.6;
        }

        .step-connector {
            display: none;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--color-bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: var(--color-border);
        }

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

        .faq-question:hover {
            color: var(--color-accent-dark);
        }

        .faq-question i {
            font-size: 0.85rem;
            color: var(--color-text-lighter);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

        .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.93rem;
            color: var(--color-text-light);
            line-height: 1.7;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

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

        .faq-item.open {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-sm);
        }

        /* ========== CTA ========== */
        .cta-block {
            background: var(--color-primary) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            background-blend-mode: overlay;
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26,45,71,0.85) 0%, rgba(26,45,71,0.7) 100%);
            z-index: 1;
            border-radius: var(--radius-xl);
        }

        .cta-block > * {
            position: relative;
            z-index: 2;
        }

        .cta-title {
            font-size: 1.9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .cta-text {
            font-size: 1.05rem;
            color: rgba(255,255,255,0.72);
            max-width: 500px;
            margin: 0 auto 28px;
            line-height: 1.6;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-size: 1rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

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

        .btn-primary:hover {
            background: var(--color-accent-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(184,148,62,0.35);
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255,255,255,0.4);
        }

        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255,255,255,0.1);
            transform: translateY(-2px);
        }

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

        .btn-white:hover {
            background: #f0ece4;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255,255,255,0.2);
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 0.88rem;
        }

        .btn-lg {
            padding: 16px 40px;
            font-size: 1.08rem;
        }

        .btn:focus-visible {
            outline: 3px solid var(--color-accent);
            outline-offset: 3px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-primary-dark);
            color: rgba(255,255,255,0.7);
            padding: 48px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand-name {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.55);
            max-width: 280px;
        }

        .footer-col-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 0.88rem;
            color: rgba(255,255,255,0.55);
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--color-accent-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 16px;
            font-size: 0.84rem;
            color: rgba(255,255,255,0.4);
        }

        /* ========== BACK TO TOP ========== */
        .back-to-top {
            position: fixed;
            bottom: 28px;
            right: 28px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            box-shadow: var(--shadow-md);
            z-index: 900;
            opacity: 0;
            pointer-events: none;
            transition: all var(--transition-base);
        }

        .back-to-top.visible {
            opacity: 1;
            pointer-events: auto;
        }

        .back-to-top:hover {
            background: var(--color-accent);
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        /* ========== MOBILE NAV OVERLAY ========== */
        .nav-mobile-overlay {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 999;
            background: rgba(0,0,0,0.5);
        }

        .nav-mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 300px;
            max-width: 85vw;
            height: 100vh;
            background: var(--color-bg-white);
            z-index: 1001;
            padding: 24px 20px;
            flex-direction: column;
            gap: 8px;
            box-shadow: var(--shadow-xl);
            transform: translateX(100%);
            transition: transform var(--transition-base);
        }

        .nav-mobile-menu.open {
            transform: translateX(0);
        }

        .nav-mobile-close {
            align-self: flex-end;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1.5px solid var(--color-border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--color-text);
            margin-bottom: 16px;
        }

        .nav-mobile-link {
            padding: 12px 16px;
            border-radius: var(--radius-md);
            font-size: 1rem;
            font-weight: 500;
            color: var(--color-text);
            transition: all var(--transition-fast);
        }

        .nav-mobile-link:hover,
        .nav-mobile-link.active {
            background: var(--color-bg);
            color: var(--color-primary);
            font-weight: 600;
        }

        .nav-mobile-search {
            width: 100%;
            height: 44px;
            padding: 0 40px 0 16px;
            border: 2px solid var(--color-border);
            border-radius: var(--radius-full);
            background: var(--color-bg);
            font-size: 0.92rem;
            color: var(--color-text);
            outline: none;
            margin-bottom: 8px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1100px) {
            .nav-search-wrap {
                max-width: 320px;
            }
            .cards-grid--4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 900px) {
            :root {
                --section-gap: 52px;
                --nav-height: 68px;
            }
            .nav-links {
                display: none;
            }
            .nav-search-wrap {
                max-width: 280px;
                margin: 0;
            }
            .nav-mobile-toggle {
                display: flex;
            }
            .nav-mobile-menu,
            .nav-mobile-overlay {
                display: flex;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .hero {
                min-height: 460px;
                padding: 48px 0;
            }
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .steps-list {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .news-list {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .cta-block {
                padding: 40px 28px;
                border-radius: var(--radius-lg);
            }
            .cta-title {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-brand-desc {
                max-width: 100%;
            }
        }

        @media (max-width: 640px) {
            :root {
                --section-gap: 40px;
                --nav-height: 60px;
            }
            .container {
                padding: 0 16px;
            }
            .site-header .container {
                gap: 10px;
            }
            .nav-logo {
                font-size: 1.05rem;
            }
            .nav-logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.8rem;
            }
            .nav-search-wrap {
                max-width: 100%;
                flex: 1;
            }
            .nav-search-input {
                height: 38px;
                font-size: 0.85rem;
                padding: 0 40px 0 14px;
            }
            .nav-search-btn {
                width: 30px;
                height: 30px;
                font-size: 0.75rem;
                right: 3px;
            }
            .hero {
                min-height: 380px;
                padding: 36px 0;
            }
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .hero-search-input {
                height: 46px;
                font-size: 0.9rem;
                padding: 0 48px 0 18px;
            }
            .hero-search-btn {
                width: 34px;
                height: 34px;
                right: 5px;
            }
            .cards-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .cards-grid--4,
            .cards-grid--2 {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .news-item {
                flex-direction: column;
                gap: 12px;
            }
            .news-item-img {
                width: 100%;
                height: 160px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .card {
                padding: 24px 20px;
            }
            .cta-block {
                padding: 32px 20px;
                border-radius: var(--radius-md);
            }
            .cta-title {
                font-size: 1.3rem;
            }
            .btn {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .hero-tags {
                gap: 6px;
            }
            .hero-tag {
                padding: 5px 12px;
                font-size: 0.78rem;
            }
        }

        @media (max-width: 420px) {
            .nav-logo {
                font-size: 0.9rem;
                letter-spacing: 0;
            }
            .nav-logo-icon {
                width: 26px;
                height: 26px;
                font-size: 0.7rem;
                border-radius: 4px;
            }
            .hero-title {
                font-size: 1.45rem;
            }
            .hero {
                min-height: 320px;
            }
            .back-to-top {
                bottom: 16px;
                right: 16px;
                width: 38px;
                height: 38px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #1a3c34;
            --color-primary-light: #2a5c4f;
            --color-primary-dark: #0f241e;
            --color-accent: #c8a45c;
            --color-accent-light: #d4b87a;
            --color-accent-dark: #a8883e;
            --color-bg: #fafaf8;
            --color-bg-alt: #f3f2ed;
            --color-bg-dark: #1a1f1d;
            --color-surface: #ffffff;
            --color-text: #1c1c1c;
            --color-text-weak: #5c5c5c;
            --color-text-muted: #8a8a8a;
            --color-border: #e2e0d8;
            --color-border-light: #edece5;
            --color-success: #3a7d5a;
            --color-warning: #c8943e;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 14px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 30px rgba(0,0,0,0.10);
            --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);
            --spacing-xs: 6px;
            --spacing-sm: 12px;
            --spacing-md: 20px;
            --spacing-lg: 32px;
            --spacing-xl: 48px;
            --spacing-2xl: 64px;
            --spacing-3xl: 80px;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
            --max-width: 1200px;
            --nav-height: 68px;
        }

        *, *::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-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        ul, ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-lg);
            height: 100%;
        }

        .header-logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-primary);
            white-space: nowrap;
            letter-spacing: 0.02em;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }
        .header-logo:hover {
            color: var(--color-primary-light);
        }

        .header-logo .logo-accent {
            color: var(--color-accent);
        }

        /* 搜索主导 */
        .nav-search-wrap {
            flex: 1;
            max-width: 460px;
            position: relative;
        }

        .nav-search-wrap .search-input {
            width: 100%;
            padding: 10px 46px 10px 18px;
            border: 2px solid var(--color-border);
            border-radius: 50px;
            font-size: 0.95rem;
            background: var(--color-bg);
            color: var(--color-text);
            transition: all var(--transition-base);
            outline: none;
        }
        .nav-search-wrap .search-input:focus {
            border-color: var(--color-primary);
            background: var(--color-surface);
            box-shadow: 0 0 0 4px rgba(26,60,52,0.07);
        }
        .nav-search-wrap .search-input::placeholder {
            color: var(--color-text-muted);
        }
        .nav-search-wrap .search-btn {
            position: absolute;
            right: 6px;
            top: 50%;
            transform: translateY(-50%);
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-fast);
            font-size: 0.95rem;
        }
        .nav-search-wrap .search-btn:hover {
            background: var(--color-primary-light);
            transform: translateY(-50%) scale(1.04);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
        }

        .nav-link {
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-weak);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-link:hover {
            color: var(--color-primary);
            background: rgba(26,60,52,0.04);
        }
        .nav-link.active {
            color: var(--color-primary);
            background: rgba(26,60,52,0.07);
            font-weight: 600;
        }

        .nav-link-category {
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-weak);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-link-category:hover {
            color: var(--color-accent-dark);
            background: rgba(200,164,92,0.06);
        }
        .nav-link-category.active {
            color: var(--color-accent-dark);
            background: rgba(200,164,92,0.10);
            font-weight: 600;
        }

        .mobile-menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--color-primary);
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-menu-toggle:hover {
            background: rgba(26,60,52,0.06);
        }

        /* ========== MAIN ========== */
        .main-content {
            flex: 1;
        }

        /* Category Hero */
        .category-hero {
            position: relative;
            padding: var(--spacing-3xl) 0 var(--spacing-2xl);
            background: linear-gradient(170deg, #1a3c34 0%, #1f2f2a 40%, #2a4a3e 100%);
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.22;
            mix-blend-mode: overlay;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, var(--color-bg) 0%, transparent 100%);
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .category-hero .cat-badge {
            display: inline-block;
            padding: 6px 18px;
            background: rgba(200,164,92,0.18);
            color: var(--color-accent-light);
            border: 1px solid rgba(200,164,92,0.3);
            border-radius: 50px;
            font-size: 0.88rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: var(--spacing-md);
        }
        .category-hero h1 {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.03em;
            line-height: 1.3;
        }
        .category-hero .cat-desc {
            font-size: 1.08rem;
            color: rgba(255,255,255,0.75);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border-light);
            padding: var(--spacing-sm) 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-text-weak);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb .sep {
            color: var(--color-border);
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* Category Content Area */
        .category-content {
            padding: var(--spacing-2xl) 0 var(--spacing-3xl);
        }
        .category-layout {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: var(--spacing-xl);
            align-items: start;
        }

        /* Sidebar */
        .cat-sidebar {
            position: sticky;
            top: calc(var(--nav-height) + 20px);
        }
        .sidebar-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            margin-bottom: var(--spacing-md);
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h3 {
            font-family: var(--font-heading);
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: var(--spacing-md);
            padding-bottom: var(--spacing-sm);
            border-bottom: 2px solid var(--color-border-light);
        }
        .sidebar-card .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-card .tag-item {
            padding: 6px 14px;
            background: var(--color-bg-alt);
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--color-text-weak);
            cursor: pointer;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }
        .sidebar-card .tag-item:hover,
        .sidebar-card .tag-item.active {
            background: rgba(26,60,52,0.08);
            color: var(--color-primary);
            border-color: rgba(26,60,52,0.2);
            font-weight: 500;
        }
        .sidebar-card .recent-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--color-border-light);
        }
        .sidebar-card .recent-list li:last-child {
            border-bottom: none;
        }
        .sidebar-card .recent-list a {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.5;
            display: block;
            transition: color var(--transition-fast);
        }
        .sidebar-card .recent-list a:hover {
            color: var(--color-primary);
        }
        .sidebar-card .recent-list .recent-date {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-top: 3px;
        }

        /* Article Grid */
        .article-grid-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: var(--spacing-lg);
            flex-wrap: wrap;
            gap: var(--spacing-sm);
        }
        .article-grid-header .result-count {
            font-size: 0.92rem;
            color: var(--color-text-weak);
        }
        .article-grid-header .result-count strong {
            color: var(--color-primary);
        }
        .article-grid-header .sort-select {
            padding: 8px 32px 8px 14px;
            border: 1.5px solid var(--color-border);
            border-radius: 50px;
            font-size: 0.9rem;
            color: var(--color-text);
            background: var(--color-surface);
            cursor: pointer;
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%235c5c5c' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            transition: border-color var(--transition-fast);
        }
        .article-grid-header .sort-select:focus {
            outline: none;
            border-color: var(--color-primary);
        }

        .article-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-lg);
        }

        .article-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }
        .article-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--color-bg-alt);
        }
        .article-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .article-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }
        .article-card .card-img-wrap .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 5px 12px;
            background: rgba(26,60,52,0.88);
            color: #fff;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            z-index: 1;
        }
        .article-card .card-body {
            padding: var(--spacing-md);
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-card .card-body h3 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.45;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }
        .article-card:hover .card-body h3 {
            color: var(--color-primary);
        }
        .article-card .card-body .card-excerpt {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.55;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
            margin-bottom: var(--spacing-sm);
        }
        .article-card .card-meta {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 0.8rem;
            color: var(--color-text-muted);
            padding-top: var(--spacing-xs);
            border-top: 1px solid var(--color-border-light);
        }
        .article-card .card-meta .meta-dot {
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--color-border);
        }

        /* Pagination */
        .pagination-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            margin-top: var(--spacing-xl);
            padding-top: var(--spacing-lg);
            border-top: 1px solid var(--color-border-light);
        }
        .pagination-wrap .page-btn {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-weak);
            border: 1.5px solid var(--color-border);
            background: var(--color-surface);
            transition: all var(--transition-fast);
        }
        .pagination-wrap .page-btn:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(26,60,52,0.04);
        }
        .pagination-wrap .page-btn.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            font-weight: 700;
        }
        .pagination-wrap .page-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* CTA Section */
        .cta-section {
            background: var(--color-bg-dark);
            padding: var(--spacing-2xl) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: var(--spacing-sm);
        }
        .cta-section p {
            color: rgba(255,255,255,0.7);
            font-size: 1rem;
            margin-bottom: var(--spacing-lg);
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-cta {
            display: inline-block;
            padding: 13px 32px;
            background: var(--color-accent);
            color: var(--color-primary-dark);
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-md);
        }
        .btn-cta:hover {
            background: var(--color-accent-light);
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #161c19;
            color: rgba(255,255,255,0.75);
            padding: var(--spacing-2xl) 0 var(--spacing-lg);
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-xl);
        }
        .footer-brand-name {
            font-family: var(--font-heading);
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: var(--spacing-sm);
        }
        .footer-brand-desc {
            line-height: 1.6;
            color: rgba(255,255,255,0.55);
            font-size: 0.88rem;
        }
        .footer-col-title {
            font-weight: 700;
            color: #ffffff;
            margin-bottom: var(--spacing-sm);
            font-size: 0.95rem;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links a {
            color: rgba(255,255,255,0.6);
            transition: color var(--transition-fast);
            font-size: 0.88rem;
        }
        .footer-links a:hover {
            color: var(--color-accent-light);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: var(--spacing-md);
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.82rem;
            color: rgba(255,255,255,0.4);
            flex-wrap: wrap;
            gap: var(--spacing-sm);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .category-layout {
                grid-template-columns: 1fr;
            }
            .cat-sidebar {
                position: static;
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-md);
            }
            .sidebar-card {
                margin-bottom: 0;
            }
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-search-wrap {
                max-width: 280px;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .nav-links.mobile-open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--color-surface);
                padding: var(--spacing-md);
                gap: 4px;
                border-bottom: 1px solid var(--color-border-light);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-links.mobile-open .nav-link,
            .nav-links.mobile-open .nav-link-category {
                border-radius: var(--radius-md);
                padding: 12px 16px;
                width: 100%;
                text-align: center;
            }
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .category-hero {
                padding: var(--spacing-2xl) 0 var(--spacing-xl);
            }
            .article-grid {
                grid-template-columns: 1fr;
            }
            .cat-sidebar {
                grid-template-columns: 1fr;
            }
            .article-grid-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .nav-search-wrap {
                max-width: 180px;
            }
            .nav-search-wrap .search-input {
                font-size: 0.82rem;
                padding: 9px 38px 9px 14px;
            }
            .header-logo {
                font-size: 1.1rem;
            }
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .category-hero .cat-desc {
                font-size: 0.92rem;
            }
            .pagination-wrap {
                gap: 3px;
            }
            .pagination-wrap .page-btn {
                width: 32px;
                height: 32px;
                font-size: 0.8rem;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
        }

/* roulang page: article */
:root {
            --primary: #1a5663;
            --primary-light: #2c7a8c;
            --primary-dark: #0f3d48;
            --accent: #c8944a;
            --accent-light: #d9a95c;
            --accent-dark: #a67a34;
            --bg: #f7f8f9;
            --bg-white: #ffffff;
            --bg-warm: #fdfaf6;
            --text: #1a1a2e;
            --text-secondary: #4a5568;
            --text-muted: #7b8698;
            --text-light: #9ca3af;
            --border: #e2e6ea;
            --border-light: #eef1f4;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 2px 8px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.04);
            --shadow-lg: 0 8px 30px rgba(0,0,0,0.08), 0 2px 8px rgba(0,0,0,0.04);
            --shadow-xl: 0 16px 48px rgba(0,0,0,0.1), 0 4px 16px rgba(0,0,0,0.04);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-mono: 'SF Mono', 'Fira Code', 'Consolas', 'Monaco', monospace;
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --max-width: 1200px;
            --content-width: 740px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            letter-spacing: 0.01em;
        }

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

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

        button, input {
            font-family: inherit;
            font-size: inherit;
        }

        input {
            outline: none;
        }

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

        .container-narrow {
            width: 100%;
            max-width: var(--content-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 12px 0;
            flex-wrap: wrap;
        }

        .header-logo {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }

        .header-logo:hover {
            color: var(--primary-light);
        }

        .header-logo .logo-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }

        .search-wrapper {
            flex: 1;
            max-width: 420px;
            min-width: 180px;
            position: relative;
        }

        .search-input {
            width: 100%;
            padding: 10px 44px 10px 18px;
            border: 2px solid var(--border);
            border-radius: var(--radius-full);
            font-size: 0.95rem;
            background: var(--bg);
            color: var(--text);
            transition: all var(--transition-fast);
            letter-spacing: 0.01em;
        }

        .search-input::placeholder {
            color: var(--text-light);
            font-size: 0.9rem;
        }

        .search-input:focus {
            border-color: var(--primary-light);
            background: var(--bg-white);
            box-shadow: 0 0 0 4px rgba(26,86,99,0.08);
        }

        .search-btn {
            position: absolute;
            right: 4px;
            top: 50%;
            transform: translateY(-50%);
            background: var(--primary);
            color: #fff;
            border: none;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-fast);
            font-size: 0.95rem;
        }

        .search-btn:hover {
            background: var(--primary-light);
            transform: translateY(-50%) scale(1.04);
        }

        .search-btn:active {
            transform: translateY(-50%) scale(0.96);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        .nav-link,
        .nav-link-category {
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .nav-link {
            color: var(--text-secondary);
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(26,86,99,0.05);
        }

        .nav-link.active {
            color: var(--primary);
            background: rgba(26,86,99,0.08);
            font-weight: 600;
        }

        .nav-link-category {
            color: var(--text-secondary);
            background: transparent;
        }

        .nav-link-category:hover {
            color: var(--accent-dark);
            background: rgba(200,148,74,0.06);
        }

        .nav-link-category.active {
            color: var(--accent-dark);
            background: rgba(200,148,74,0.1);
            font-weight: 600;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: var(--text);
            font-size: 1.5rem;
            line-height: 1;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-toggle:hover {
            background: var(--bg);
        }

        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            max-width: 85vw;
            height: 100vh;
            background: var(--bg-white);
            box-shadow: var(--shadow-xl);
            z-index: 200;
            padding: 24px 20px;
            transition: right var(--transition-slow);
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }

        .mobile-nav-panel.open {
            right: 0;
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.4);
            z-index: 199;
            opacity: 0;
            transition: opacity var(--transition-normal);
        }

        .mobile-nav-overlay.show {
            display: block;
            opacity: 1;
        }

        .mobile-nav-panel .nav-link,
        .mobile-nav-panel .nav-link-category {
            display: block;
            text-align: left;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            font-size: 1rem;
        }

        .mobile-nav-close {
            align-self: flex-end;
            background: none;
            border: none;
            font-size: 1.6rem;
            cursor: pointer;
            color: var(--text-muted);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            margin-bottom: 8px;
        }

        .mobile-nav-close:hover {
            background: var(--bg);
            color: var(--text);
        }

        /* ========== MAIN ========== */
        .site-main {
            flex: 1;
            padding: 40px 0 60px;
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-wrap {
            padding: 8px 0 20px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-muted);
            list-style: none;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb .sep {
            color: var(--text-light);
            font-size: 0.75rem;
            user-select: none;
        }

        .breadcrumb .current {
            color: var(--text);
            font-weight: 500;
            pointer-events: none;
        }

        /* ========== ARTICLE HEADER ========== */
        .article-header {
            margin-bottom: 28px;
        }

        .article-category-tag {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(200,148,74,0.1);
            color: var(--accent-dark);
            border-radius: var(--radius-full);
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 16px;
            transition: all var(--transition-fast);
        }

        .article-category-tag:hover {
            background: rgba(200,148,74,0.18);
            color: var(--accent-dark);
        }

        .article-title {
            font-size: 2.15rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            letter-spacing: -0.015em;
            margin-bottom: 14px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.88rem;
            color: var(--text-muted);
            padding-bottom: 18px;
            border-bottom: 1px solid var(--border-light);
            margin-bottom: 20px;
        }

        .article-meta-item {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .article-meta-icon {
            font-size: 0.95rem;
            opacity: 0.7;
        }

        .article-cover {
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-bottom: 32px;
            box-shadow: var(--shadow-md);
            background: var(--bg);
        }

        .article-cover img {
            width: 100%;
            display: block;
            object-fit: cover;
            aspect-ratio: 16 / 8;
        }

        /* ========== ARTICLE BODY ========== */
        .article-body {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text);
            word-break: break-word;
        }

        .article-body p {
            margin-bottom: 1.4em;
        }

        .article-body h2 {
            font-size: 1.55rem;
            font-weight: 700;
            margin: 2em 0 0.8em;
            color: var(--primary-dark);
            letter-spacing: -0.01em;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--border-light);
        }

        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin: 1.6em 0 0.6em;
            color: var(--text);
            letter-spacing: -0.005em;
        }

        .article-body ul,
        .article-body ol {
            margin: 1em 0 1.4em;
            padding-left: 1.6em;
        }

        .article-body li {
            margin-bottom: 0.45em;
            padding-left: 0.2em;
        }

        .article-body li::marker {
            color: var(--primary-light);
        }

        .article-body blockquote {
            margin: 1.8em 0;
            padding: 18px 22px;
            border-left: 4px solid var(--accent);
            background: var(--bg-warm);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-secondary);
            font-style: italic;
            letter-spacing: 0.01em;
        }

        .article-body blockquote p {
            margin-bottom: 0.4em;
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 1.6em auto;
            box-shadow: var(--shadow-sm);
            max-width: 100%;
        }

        .article-body a {
            color: var(--primary-light);
            text-decoration: underline;
            text-decoration-color: rgba(44,122,140,0.3);
            text-underline-offset: 3px;
            transition: all var(--transition-fast);
        }

        .article-body a:hover {
            color: var(--primary);
            text-decoration-color: var(--primary);
        }

        .article-body code {
            background: var(--bg);
            padding: 2px 8px;
            border-radius: 4px;
            font-family: var(--font-mono);
            font-size: 0.9em;
            color: var(--primary-dark);
            border: 1px solid var(--border-light);
        }

        .article-body pre {
            background: #1a1a2e;
            color: #e2e6ea;
            padding: 20px 24px;
            border-radius: var(--radius-md);
            overflow-x: auto;
            margin: 1.6em 0;
            font-family: var(--font-mono);
            font-size: 0.88rem;
            line-height: 1.6;
        }

        .article-body pre code {
            background: none;
            border: none;
            padding: 0;
            color: inherit;
            font-size: inherit;
        }

        .article-body hr {
            border: none;
            border-top: 1px solid var(--border);
            margin: 2.5em 0;
        }

        /* ========== ARTICLE FOOTER AREA ========== */
        .article-footer-area {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 14px;
        }

        .article-tags {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .article-tag {
            padding: 5px 12px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            cursor: default;
        }

        .article-tag:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            background: rgba(26,86,99,0.04);
        }

        .back-link-wrap {
            flex-shrink: 0;
        }

        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-full);
            font-size: 0.88rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .back-link:hover {
            background: var(--primary-light);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .back-link:active {
            transform: translateY(0);
        }

        /* ========== RELATED SECTION ========== */
        .related-section {
            margin-top: 48px;
            padding-top: 40px;
            border-top: 2px solid var(--border);
        }

        .related-title {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 24px;
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .related-title::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 22px;
            background: var(--accent);
            border-radius: 2px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
        }

        .related-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 20px 22px;
            transition: all var(--transition-normal);
            cursor: pointer;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .related-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: var(--border);
        }

        .related-card-tag {
            font-size: 0.75rem;
            color: var(--accent-dark);
            font-weight: 600;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        .related-card-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            line-height: 1.4;
            transition: color var(--transition-fast);
        }

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

        .related-card-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            margin-top: 48px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            border-radius: var(--radius-xl);
            padding: 44px 36px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            background: rgba(255,255,255,0.04);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -30px;
            left: -30px;
            width: 120px;
            height: 120px;
            background: rgba(255,255,255,0.03);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section > * {
            position: relative;
            z-index: 1;
        }

        .cta-section h3 {
            font-size: 1.55rem;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .cta-section p {
            font-size: 1rem;
            opacity: 0.88;
            margin-bottom: 22px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-normal);
            border: none;
            cursor: pointer;
        }

        .cta-btn:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200,148,74,0.35);
        }

        .cta-btn:active {
            transform: translateY(0);
        }

        /* ========== NOT FOUND STATE ========== */
        .not-found-block {
            text-align: center;
            padding: 60px 24px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
        }

        .not-found-icon {
            font-size: 4rem;
            margin-bottom: 16px;
            opacity: 0.5;
        }

        .not-found-block h2 {
            font-size: 1.5rem;
            color: var(--text);
            margin-bottom: 8px;
            font-weight: 700;
        }

        .not-found-block p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 0.95rem;
        }

        .not-found-back {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 500;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .not-found-back:hover {
            background: var(--primary-light);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #1a1a2e;
            color: #c5c9d1;
            padding: 48px 0 28px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand-name {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .footer-brand-desc {
            font-size: 0.88rem;
            line-height: 1.6;
            color: #a0a5af;
            max-width: 280px;
        }

        .footer-col-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
            text-transform: uppercase;
            font-size: 0.78rem;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 9px;
        }

        .footer-links a {
            font-size: 0.88rem;
            color: #a0a5af;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.8rem;
            color: #7b808a;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .header-inner {
                gap: 12px;
            }

            .search-wrapper {
                max-width: 300px;
            }

            .article-title {
                font-size: 1.8rem;
            }

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

            .related-grid {
                grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: nowrap;
                gap: 10px;
            }

            .header-logo {
                font-size: 1.15rem;
            }

            .search-wrapper {
                max-width: 200px;
                min-width: 140px;
            }

            .search-input {
                padding: 8px 36px 8px 14px;
                font-size: 0.85rem;
            }

            .search-btn {
                width: 30px;
                height: 30px;
                font-size: 0.8rem;
                right: 3px;
            }

            .nav-links {
                display: none;
            }

            .mobile-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }

            .mobile-nav-panel {
                display: flex;
            }

            .site-main {
                padding: 24px 0 40px;
            }

            .article-title {
                font-size: 1.5rem;
            }

            .article-body {
                font-size: 0.98rem;
                line-height: 1.75;
            }

            .article-body h2 {
                font-size: 1.3rem;
            }

            .article-body h3 {
                font-size: 1.1rem;
            }

            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }

            .cta-section h3 {
                font-size: 1.25rem;
            }

            .related-grid {
                grid-template-columns: 1fr;
            }

            .article-cover img {
                aspect-ratio: 16 / 9;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .footer-brand-desc {
                max-width: 100%;
            }

            .article-footer-area {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .container-narrow {
                padding: 0 16px;
            }

            .header-inner {
                gap: 8px;
            }

            .header-logo {
                font-size: 1rem;
            }

            .search-wrapper {
                max-width: 150px;
                min-width: 120px;
            }

            .search-input {
                font-size: 0.8rem;
                padding: 7px 32px 7px 10px;
            }

            .search-btn {
                width: 26px;
                height: 26px;
                font-size: 0.7rem;
                right: 2px;
            }

            .article-title {
                font-size: 1.3rem;
            }

            .article-meta {
                font-size: 0.78rem;
                gap: 10px;
            }

            .article-body {
                font-size: 0.92rem;
                line-height: 1.7;
            }

            .article-body h2 {
                font-size: 1.15rem;
            }

            .article-body blockquote {
                padding: 14px 16px;
                margin: 1.2em 0;
            }

            .cta-section {
                padding: 24px 16px;
                border-radius: var(--radius-md);
            }

            .cta-section h3 {
                font-size: 1.1rem;
            }

            .cta-btn {
                padding: 10px 20px;
                font-size: 0.85rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }

            .breadcrumb {
                font-size: 0.78rem;
            }

            .back-link {
                padding: 8px 16px;
                font-size: 0.82rem;
            }

            .related-card {
                padding: 16px 18px;
            }
        }