/* roulang page: index */
:root {
            --primary: #14181F;
            --primary-light: #1D2229;
            --accent: #A98D57;
            --accent-light: #C9AE78;
            --bg: #F7F5F0;
            --bg-secondary: #EFEBE2;
            --bg-nav: #F5F2EB;
            --text: #2A2A28;
            --text-secondary: #6E6A60;
            --text-muted: #989383;
            --border: #E2DDD2;
            --border-light: #D4CBB8;
            --footer-bg: #16181D;
            --footer-text: #E8E4DA;
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --radius-pill: 999px;
            --shadow-card: 0 1px 3px rgba(20, 24, 31, 0.04), 0 4px 12px rgba(20, 24, 31, 0.04);
            --shadow-hover: 0 2px 6px rgba(20, 24, 31, 0.06), 0 12px 32px rgba(20, 24, 31, 0.10);
            --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
            --transition: 250ms cubic-bezier(0.2, 0.6, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Noto Sans SC', sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 150ms var(--ease);
        }
        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: 'Noto Serif SC', serif;
            margin: 0;
            color: var(--text);
        }
        button {
            border: none;
            background: none;
            cursor: pointer;
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }
        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-sm);
            padding: 14px 28px;
            font-size: 14px;
            font-weight: 500;
            line-height: 1;
            text-decoration: none;
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .btn-primary {
            background: var(--primary);
            color: #F7F5F0;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-light);
            color: #F7F5F0;
            box-shadow: 0 4px 16px rgba(20, 24, 31, 0.18);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            background: #0F1216;
            transform: translateY(0);
        }
        .btn-outline {
            background: transparent;
            color: var(--text);
            border-color: var(--border-light);
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(169, 141, 87, 0.06);
        }
        .btn-gold {
            background: var(--accent-light);
            color: var(--primary);
            border-color: var(--accent-light);
        }
        .btn-gold:hover {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(169, 141, 87, 0.3);
            transform: translateY(-1px);
        }
        .btn-outline-light {
            background: transparent;
            color: var(--footer-text);
            border-color: rgba(255, 255, 255, 0.3);
        }
        .btn-outline-light:hover {
            border-color: var(--accent-light);
            color: var(--accent-light);
            background: rgba(201, 174, 120, 0.06);
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 15px;
        }
        .btn-sm {
            padding: 10px 20px;
            font-size: 13px;
        }

        /* ===== Badge ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            border-radius: var(--radius-pill);
            padding: 4px 12px;
            border: 1px solid var(--border-light);
            background: var(--bg);
            font-size: 12px;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
        }
        .badge-gold {
            border-color: var(--accent-light);
            color: #8A6D3B;
            background: rgba(201, 174, 120, 0.10);
        }
        .badge-dark {
            border-color: rgba(255, 255, 255, 0.2);
            color: var(--footer-text);
            background: transparent;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            background: var(--bg);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-line {
            height: 1px;
            background: var(--border);
        }
        .nav-panel {
            background: var(--bg-nav);
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            padding: 0 24px;
            position: relative;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            min-width: 150px;
            flex-shrink: 0;
        }
        .brand-mark {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-light);
            font-size: 16px;
            font-weight: 700;
        }
        .brand-text {
            font-family: 'Noto Serif SC', serif;
            font-size: 20px;
            font-weight: 900;
            color: var(--text);
            letter-spacing: 0.5px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }
        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            border-radius: var(--radius-sm);
            gap: 3px;
            transition: all 150ms var(--ease);
            border: 1px solid transparent;
            color: var(--text-secondary);
            font-size: 12px;
            font-weight: 500;
            line-height: 1.2;
        }
        .nav-item .nav-icon {
            font-size: 14px;
            line-height: 1;
        }
        .nav-item:hover {
            color: var(--text);
            background: rgba(169, 141, 87, 0.06);
            transform: scale(1.05);
        }
        .nav-item.active {
            border-color: var(--accent-light);
            background: rgba(201, 174, 120, 0.10);
            color: #8A6D3B;
        }
        .nav-item.active .nav-icon {
            color: var(--accent);
        }
        .nav-cta {
            flex-shrink: 0;
            margin-left: 8px;
            padding: 12px 24px;
        }
        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            color: var(--text);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            background: var(--bg);
        }
        .nav-toggle:hover {
            border-color: var(--accent);
            color: var(--accent);
        }
        .mobile-menu {
            display: none;
            background: var(--bg-nav);
            padding: 16px 24px 20px;
            border-top: 1px solid var(--border);
            gap: 8px;
            flex-direction: column;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu .nav-item {
            flex-direction: row;
            justify-content: flex-start;
            width: 100%;
            height: 52px;
            padding: 0 16px;
            gap: 12px;
            border-radius: var(--radius-md);
            border: 1px solid transparent;
            font-size: 14px;
        }
        .mobile-menu .nav-item.active {
            border-color: var(--accent-light);
            background: rgba(201, 174, 120, 0.10);
            color: #8A6D3B;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 560px;
            height: 70vh;
            max-height: 820px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: var(--primary);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(20, 24, 31, 0.55), rgba(20, 24, 31, 0.60));
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 860px;
            margin-left: auto;
            margin-right: auto;
            text-align: center;
            padding-top: 40px;
            padding-bottom: 40px;
        }
        .hero-content .badge {
            margin-bottom: 24px;
            border-color: rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.08);
            color: #E8E4DA;
        }
        .hero-content h1 {
            font-size: 48px;
            font-weight: 900;
            line-height: 1.25;
            color: #fff;
            text-shadow: 0 2px 18px rgba(0, 0, 0, 0.4);
            margin-bottom: 20px;
        }
        .hero-sub {
            font-size: 18px;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            max-width: 640px;
            margin: 0 auto 36px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .hero-actions .btn-primary {
            background: var(--accent-light);
            color: var(--primary);
            border-color: var(--accent-light);
        }
        .hero-actions .btn-primary:hover {
            background: var(--accent);
            box-shadow: 0 4px 20px rgba(201, 174, 120, 0.35);
        }
        .hero-actions .btn-outline {
            color: #E8E4DA;
            border-color: rgba(255, 255, 255, 0.4);
        }
        .hero-actions .btn-outline:hover {
            color: var(--accent-light);
            border-color: var(--accent-light);
            background: rgba(201, 174, 120, 0.08);
        }
        .scroll-line {
            position: absolute;
            bottom: 28px;
            left: 50%;
            transform: translateX(-50%);
            width: 2px;
            height: 40px;
            background: rgba(255, 255, 255, 0.5);
            border-radius: 2px;
            animation: scrollPulse 2s ease-in-out infinite;
            z-index: 2;
        }
        @keyframes scrollPulse {
            0% {
                opacity: 0.3;
                transform: translateX(-50%) scaleY(0.8);
            }
            50% {
                opacity: 1;
                transform: translateX(-50%) scaleY(1);
            }
            100% {
                opacity: 0.3;
                transform: translateX(-50%) scaleY(0.8);
            }
        }

        /* ===== Section Base ===== */
        .section {
            padding: 80px 0;
        }
        .section-header {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 40px;
            position: relative;
        }
        .section-header::before {
            content: "";
            width: 40px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            animation: lineIn 800ms ease-out both;
        }
        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text);
        }
        .section-header .badge {
            margin-left: 4px;
        }
        .section-header .link-more {
            margin-left: auto;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            border-bottom: 1px solid var(--border);
            padding-bottom: 2px;
            transition: color 150ms var(--ease), border-color 150ms var(--ease);
        }
        .section-header .link-more:hover {
            color: var(--accent);
            border-color: var(--accent);
        }
        @keyframes lineIn {
            from {
                width: 0;
            }
            to {
                width: 40px;
            }
        }

        /* ===== Catalog ===== */
        .catalog-section {
            background: var(--bg-secondary);
            padding: 80px 0;
        }
        .catalog-panel {
            background: var(--bg-nav);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-card);
            margin-top: -40px;
            position: relative;
            z-index: 3;
        }
        .catalog-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .catalog-card {
            display: flex;
            flex-direction: column;
            gap: 6px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            transition: all 250ms var(--ease);
            text-decoration: none;
        }
        .catalog-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent-light);
        }
        .catalog-num {
            font-family: 'IBM Plex Mono', monospace;
            font-size: 12px;
            color: var(--accent);
            font-weight: 500;
        }
        .catalog-name {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            font-family: 'Noto Serif SC', serif;
        }
        .catalog-count {
            font-size: 12px;
            color: var(--text-muted);
        }
        .catalog-arrow {
            margin-top: auto;
            font-size: 16px;
            color: var(--text-muted);
            transition: transform 150ms var(--ease), color 150ms var(--ease);
            text-align: right;
        }
        .catalog-card:hover .catalog-arrow {
            transform: translateX(4px);
            color: var(--accent);
        }

        /* ===== Featured ===== */
        .featured-section {
            background: var(--bg);
            padding: 80px 0;
        }
        .featured-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .entry-card {
            display: grid;
            grid-template-columns: 260px 1fr;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 250ms var(--ease);
            text-decoration: none;
        }
        .entry-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent-light);
        }
        .entry-thumb {
            position: relative;
            min-height: 180px;
            background: var(--bg-secondary);
            overflow: hidden;
        }
        .entry-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }
        .entry-body {
            padding: 24px 28px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .entry-body h3 {
            font-size: 20px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .entry-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .entry-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            padding-top: 12px;
            margin-top: auto;
        }
        .empty-state {
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            padding: 64px 24px;
            text-align: center;
            color: var(--text-muted);
        }
        .empty-state i {
            font-size: 32px;
            color: var(--accent);
            margin-bottom: 12px;
            display: block;
        }
        .empty-state p {
            font-size: 15px;
            margin-bottom: 8px;
        }
        .empty-state .btn {
            margin-top: 12px;
            font-size: 13px;
            padding: 8px 18px;
        }

        /* ===== Recommend ===== */
        .recommend-section {
            background: var(--bg-secondary);
            padding: 80px 0;
        }
        .recommend-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 24px;
            align-items: stretch;
        }
        .recommend-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: flex-end;
            background: var(--primary);
            text-decoration: none;
            box-shadow: var(--shadow-card);
            transition: all 250ms var(--ease);
        }
        .recommend-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .recommend-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.85;
        }
        .recommend-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(20, 24, 31, 0.8) 0%, rgba(20, 24, 31, 0.2) 60%, transparent 100%);
        }
        .recommend-info {
            position: relative;
            z-index: 2;
            padding: 24px;
            width: 100%;
        }
        .recommend-info h3 {
            color: #fff;
            font-size: 22px;
            font-weight: 600;
            margin: 8px 0 4px;
            line-height: 1.4;
        }
        .recommend-info p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            line-height: 1.6;
        }
        .recommend-info .badge {
            border-color: rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }
        .recommend-side {
            display: grid;
            grid-template-rows: 1fr 1fr;
            gap: 24px;
        }
        .recommend-item {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            min-height: 148px;
            display: flex;
            align-items: flex-end;
            background: var(--primary);
            text-decoration: none;
            box-shadow: var(--shadow-card);
            transition: all 250ms var(--ease);
        }
        .recommend-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .recommend-item img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.8;
        }
        .recommend-item .recommend-overlay {
            background: linear-gradient(to top, rgba(20, 24, 31, 0.75), rgba(20, 24, 31, 0.15));
        }
        .recommend-item .recommend-info {
            padding: 18px;
        }
        .recommend-item .recommend-info h3 {
            font-size: 17px;
        }
        .recommend-item .recommend-info .badge {
            font-size: 11px;
            padding: 3px 10px;
        }

        /* ===== Stats ===== */
        .stats-section {
            background: var(--bg);
            padding: 80px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .stat-num {
            display: block;
            font-family: 'IBM Plex Mono', monospace;
            font-size: 44px;
            font-weight: 500;
            color: var(--text);
            line-height: 1.2;
        }
        .stat-label {
            display: block;
            margin-top: 8px;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--footer-bg);
            padding: 96px 0;
            position: relative;
        }
        .cta-section::after {
            content: "";
            display: block;
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: var(--accent);
        }
        .cta-inner {
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            color: #fff;
            font-size: 34px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 14px;
        }
        .cta-inner p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            margin-bottom: 36px;
        }
        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg);
            padding: 80px 0;
        }
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: border-color 200ms var(--ease);
        }
        .faq-item.active {
            border-color: var(--accent-light);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            gap: 16px;
            background: transparent;
            border: none;
            font-family: 'Noto Serif SC', serif;
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--accent);
            transition: transform 300ms var(--ease), background 300ms var(--ease);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: rgba(201, 174, 120, 0.1);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 400ms var(--ease);
        }
        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-secondary);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--footer-bg);
            color: var(--footer-text);
            padding: 64px 0 0;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
        }
        .footer-brand .brand-text {
            color: #fff;
        }
        .footer-brand .brand-mark {
            background: var(--accent-light);
            color: var(--primary);
        }
        .footer-desc {
            font-size: 13px;
            color: rgba(232, 228, 218, 0.6);
            line-height: 1.7;
            margin-top: 14px;
            max-width: 240px;
        }
        .footer-col h4 {
            color: #fff;
            font-family: 'Noto Serif SC', serif;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col a {
            font-size: 13px;
            color: rgba(232, 228, 218, 0.6);
            transition: color 150ms var(--ease);
        }
        .footer-col a:hover {
            color: var(--accent-light);
        }
        .footer-divider {
            border: none;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin: 0;
        }
        .footer-about {
            padding: 20px 0;
            font-size: 12px;
            color: rgba(232, 228, 218, 0.5);
            text-align: center;
        }
        .footer-bottom {
            padding: 20px 0 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: #8A8578;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-bottom a {
            color: #8A8578;
        }
        .footer-bottom a:hover {
            color: var(--accent-light);
        }

        /* ===== Animations ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(16px);
            animation: fadeUp 400ms var(--ease) forwards;
        }
        @keyframes fadeUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199.98px) {
            .nav-item {
                font-size: 0;
            }
            .nav-item .nav-icon {
                font-size: 16px;
            }
            .nav-item {
                width: 46px;
                height: 46px;
            }
            .catalog-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .hero-content h1 {
                font-size: 40px;
            }
        }
        @media (max-width: 991.98px) {
            .nav-panel {
                height: auto;
                min-height: 68px;
                padding: 10px 16px;
                gap: 12px;
            }
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-cta {
                margin-left: auto;
                padding: 10px 18px;
                font-size: 13px;
            }
            .mobile-menu {
                display: none;
            }
            .mobile-menu.open {
                display: flex;
            }
            .catalog-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .entry-card {
                grid-template-columns: 1fr;
            }
            .entry-thumb {
                min-height: 200px;
                position: relative;
            }
            .entry-thumb img {
                position: relative;
                height: 200px;
            }
            .recommend-grid {
                grid-template-columns: 1fr;
            }
            .recommend-side {
                grid-template-columns: 1fr 1fr;
                grid-template-rows: none;
            }
            .recommend-item {
                min-height: 160px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
            .hero {
                height: auto;
                min-height: 500px;
            }
            .hero-content h1 {
                font-size: 36px;
            }
        }
        @media (max-width: 767.98px) {
            .section {
                padding: 48px 0;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .hero-content h1 {
                font-size: 30px;
            }
            .hero-sub {
                font-size: 16px;
            }
            .catalog-panel {
                padding: 20px;
                margin-top: -20px;
            }
            .recommend-side {
                grid-template-columns: 1fr;
            }
            .cta-section {
                padding: 64px 0;
            }
            .cta-inner h2 {
                font-size: 26px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                justify-content: center;
                text-align: center;
            }
        }
        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .nav-panel {
                padding: 8px 12px;
            }
            .brand-text {
                font-size: 17px;
            }
            .brand-mark {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
            .nav-cta {
                padding: 8px 14px;
                font-size: 12px;
            }
            .hero-content h1 {
                font-size: 26px;
            }
            .hero-actions .btn {
                width: calc(50% - 8px);
                padding: 12px 10px;
                font-size: 13px;
            }
            .catalog-grid {
                grid-template-columns: 1fr;
            }
            .entry-body {
                padding: 20px;
            }
            .recommend-item {
                min-height: 140px;
            }
            .stats-grid {
                gap: 24px;
            }
            .stat-num {
                font-size: 32px;
            }
            .cta-actions .btn {
                width: calc(50% - 8px);
                padding: 12px 10px;
                font-size: 13px;
                white-space: nowrap;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 15px;
            }
            .faq-answer-inner {
                padding: 0 18px 16px;
            }
            .footer-top {
                gap: 24px;
                padding-bottom: 32px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #14181F;
            --primary-light: #1D2229;
            --accent: #A98D57;
            --accent-light: #C9AE78;
            --bg-warm: #F7F5F0;
            --bg-sand: #EFEBE2;
            --text-main: #2A2A28;
            --text-secondary: #6E6A60;
            --text-muted: #989383;
            --border: #E2DDD2;
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --shadow-sm: 0 1px 3px rgba(20, 24, 31, 0.04), 0 4px 12px rgba(20, 24, 31, 0.04);
            --shadow-hover: 0 2px 6px rgba(20, 24, 31, 0.06), 0 12px 32px rgba(20, 24, 31, 0.10);
            --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            background: var(--bg-warm);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s var(--ease);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul {
            list-style: none;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin-right: auto;
            margin-left: auto;
            padding-right: 24px;
            padding-left: 24px;
        }

        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            font-family: 'Noto Sans SC', sans-serif;
            padding: 14px 28px;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all .25s var(--ease);
            line-height: 1;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--bg-warm);
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-light);
            color: #fff;
            box-shadow: 0 4px 16px rgba(20, 24, 31, 0.18);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            background: #0F1216;
            transform: translateY(0);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-main);
            border-color: #D4CBB8;
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(169, 141, 87, 0.06);
        }
        .btn-accent {
            background: var(--accent-light);
            color: var(--primary);
            border-color: var(--accent-light);
        }
        .btn-accent:hover {
            background: #d8bc84;
            box-shadow: 0 4px 16px rgba(201, 174, 120, 0.35);
            transform: translateY(-1px);
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 16px;
        }

        /* 徽章 */
        .badge-soft {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 999px;
            padding: 4px 14px;
            border: 1px solid #D4CBB8;
            background: var(--bg-warm);
            color: var(--text-secondary);
            font-size: 12px;
            font-weight: 500;
            font-family: 'Noto Sans SC', sans-serif;
        }
        .badge-gold {
            border-color: var(--accent-light);
            color: #8A6D3B;
            background: rgba(201, 174, 120, 0.10);
        }

        /* 导航面板 */
        .nav-panel {
            background: var(--bg-warm);
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            height: 76px;
            padding: 0 24px;
            gap: 32px;
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 1px 0 rgba(20, 24, 31, 0.02);
            max-width: 1200px;
            margin: 0 auto;
            width: 100%;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
            min-width: 150px;
        }
        .brand-mark {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--primary);
            color: var(--accent-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-family: 'Noto Serif SC', serif;
            font-weight: 700;
            font-size: 20px;
            line-height: 1;
        }
        .brand-text {
            font-family: 'Noto Serif SC', serif;
            font-weight: 700;
            font-size: 18px;
            color: var(--text-main);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 12px;
            flex: 1;
        }
        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 52px;
            border-radius: 12px;
            background: transparent;
            border: 1px solid transparent;
            gap: 2px;
            transition: all .15s var(--ease);
            color: var(--text-secondary);
        }
        .nav-item .nav-icon {
            font-size: 16px;
            line-height: 1;
            transition: transform .15s var(--ease);
        }
        .nav-item .nav-label {
            font-size: 12px;
            font-weight: 500;
            line-height: 1.2;
        }
        .nav-item:hover {
            background: var(--bg-sand);
            color: var(--text-main);
        }
        .nav-item:hover .nav-icon {
            transform: scale(1.06);
        }
        .nav-item.active {
            border-color: var(--accent-light);
            background: rgba(201, 174, 120, 0.10);
            color: #8A6D3B;
        }
        .nav-cta {
            margin-left: auto;
            flex-shrink: 0;
            padding: 12px 22px;
            font-size: 14px;
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: 10px;
            width: 44px;
            height: 44px;
            font-size: 18px;
            color: var(--text-main);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: all .15s var(--ease);
        }
        .nav-toggle:hover {
            background: var(--bg-sand);
        }

        /* Hero 顶栏式 */
        .category-hero {
            position: relative;
            padding: 72px 0 56px;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            border-bottom: 1px solid var(--border);
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(247, 245, 240, 0.92) 0%, rgba(247, 245, 240, 0.78) 100%);
        }
        .category-hero-inner {
            position: relative;
            z-index: 2;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .breadcrumb-line {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-line a {
            color: var(--text-muted);
            transition: color .15s var(--ease);
        }
        .breadcrumb-line a:hover {
            color: var(--accent);
        }
        .breadcrumb-line .current {
            color: var(--text-main);
            font-weight: 500;
        }
        .category-hero h1 {
            font-family: 'Noto Serif SC', serif;
            font-weight: 900;
            font-size: 46px;
            line-height: 1.25;
            color: var(--text-main);
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .category-hero .hero-desc {
            font-size: 18px;
            font-weight: 400;
            color: var(--text-secondary);
            max-width: 560px;
            line-height: 1.8;
            margin-bottom: 28px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* 区块标题 */
        .section-header {
            display: flex;
            align-items: flex-end;
            gap: 16px;
            margin-bottom: 36px;
            position: relative;
        }
        .section-line {
            width: 40px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
            flex-shrink: 0;
            margin-bottom: 8px;
            animation: lineIn .8s ease-out;
        }
        @keyframes lineIn {
            from {
                width: 0;
                opacity: 0;
            }
            to {
                width: 40px;
                opacity: 1;
            }
        }
        .section-header h2 {
            font-family: 'Noto Serif SC', serif;
            font-weight: 700;
            font-size: 26px;
            line-height: 1.4;
            color: var(--text-main);
            margin: 0;
        }
        .section-header .section-sub {
            font-size: 14px;
            color: var(--text-secondary);
            margin-left: auto;
            align-self: flex-end;
            max-width: 320px;
            text-align: right;
            line-height: 1.6;
        }

        /* 通用板块 */
        .content-section {
            padding: 72px 0;
            background: var(--bg-warm);
        }
        .content-section.alt {
            background: var(--bg-sand);
        }

        /* 登录准备特征卡 */
        .feature-card {
            background: var(--bg-warm);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 30px 26px;
            box-shadow: var(--shadow-sm);
            transition: all .25s var(--ease);
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(169, 141, 87, 0.12);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 18px;
            transition: transform .15s var(--ease);
        }
        .feature-card:hover .feature-icon {
            transform: scale(1.04);
        }
        .feature-card h3 {
            font-family: 'Noto Serif SC', serif;
            font-weight: 700;
            font-size: 19px;
            color: var(--text-main);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        /* 流程步骤区 */
        .steps-section {
            background: var(--bg-sand);
            padding: 72px 0;
        }
        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            max-width: 720px;
            margin: 0 auto;
            position: relative;
        }
        .steps-list::before {
            content: '';
            position: absolute;
            left: 31px;
            top: 20px;
            bottom: 20px;
            width: 2px;
            background: var(--border);
        }
        .step-item {
            display: flex;
            gap: 24px;
            padding: 12px 0;
            position: relative;
        }
        .step-number {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--bg-warm);
            border: 2px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: 'IBM Plex Mono', monospace;
            font-size: 20px;
            font-weight: 500;
            color: var(--accent);
            flex-shrink: 0;
            z-index: 1;
            box-shadow: 0 0 0 4px var(--bg-sand);
        }
        .step-content {
            background: var(--bg-warm);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            flex: 1;
            box-shadow: var(--shadow-sm);
            transition: all .25s var(--ease);
        }
        .step-content:hover {
            box-shadow: var(--shadow-hover);
        }
        .step-content h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .step-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* 场景区 */
        .scenario-section {
            padding: 72px 0;
            background: var(--bg-warm);
        }
        .scenario-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            height: 100%;
            min-height: 320px;
        }
        .scenario-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .scenario-content {
            padding: 12px 0 12px 40px;
        }
        .scenario-content h3 {
            font-family: 'Noto Serif SC', serif;
            font-weight: 700;
            font-size: 24px;
            color: var(--text-main);
            margin-bottom: 14px;
        }
        .scenario-content>p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .scenario-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .scenario-list-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }
        .scenario-list-item .list-icon {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: rgba(169, 141, 87, 0.12);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
        }
        .scenario-list-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 2px;
        }
        .scenario-list-item p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* 安全提示 */
        .security-section {
            background: var(--bg-sand);
            padding: 72px 0;
        }
        .security-card {
            background: var(--bg-warm);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 22px;
            height: 100%;
            display: flex;
            gap: 16px;
            align-items: flex-start;
            box-shadow: var(--shadow-sm);
            transition: all .25s var(--ease);
        }
        .security-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .security-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--primary);
            color: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }
        .security-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
        }
        .security-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* FAQ */
        .faq-section {
            padding: 72px 0;
            background: var(--bg-warm);
        }
        .faq-wrap {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-card {
            background: var(--bg-warm);
            border: 1px solid var(--border);
            border-radius: 12px;
            overflow: hidden;
            transition: all .25s var(--ease);
        }
        .faq-card.open {
            box-shadow: var(--shadow-sm);
            border-color: #D4CBB8;
        }
        .faq-question {
            width: 100%;
            background: transparent;
            border: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            text-align: left;
            font-family: 'Noto Sans SC', sans-serif;
            gap: 16px;
        }
        .faq-icon {
            width: 26px;
            height: 26px;
            border-radius: 8px;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--accent);
            flex-shrink: 0;
            transition: transform .3s var(--ease);
        }
        .faq-card.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease;
        }
        .faq-answer-inner {
            padding: 0 22px 18px;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-secondary);
        }

        /* CTA */
        .cta-section {
            padding: 20px 0 72px;
            background: var(--bg-warm);
        }
        .cta-card {
            background: var(--bg-sand);
            border-radius: var(--radius-lg);
            padding: 52px 48px;
            text-align: center;
            border: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        .cta-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 24px;
            right: 24px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .cta-card h2 {
            font-family: 'Noto Serif SC', serif;
            font-weight: 700;
            font-size: 28px;
            color: var(--text-main);
            margin-bottom: 10px;
        }
        .cta-card p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 28px;
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: var(--primary);
            color: #E8E4DA;
            padding: 56px 0 0;
            font-size: 14px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .brand {
            margin-bottom: 14px;
        }
        .footer-brand .brand-mark {
            background: var(--primary-light);
        }
        .footer-brand .brand-text {
            color: #E8E4DA;
        }
        .footer-desc {
            font-size: 13px;
            line-height: 1.8;
            color: #989383;
            margin: 0;
            max-width: 280px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #E8E4DA;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
            padding: 0;
        }
        .footer-col ul li a {
            color: #989383;
            font-size: 13px;
            transition: color .15s var(--ease);
        }
        .footer-col ul li a:hover {
            color: var(--accent-light);
        }
        .footer-col ul li span {
            color: #989383;
            font-size: 13px;
        }
        .footer-divider {
            border: 0;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin: 0;
        }
        .footer-about {
            padding: 18px 0;
            font-size: 12px;
            color: #8A8578;
            text-align: center;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0 28px;
            font-size: 12px;
            color: #8A8578;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-bottom a {
            color: #8A8578;
            transition: color .15s var(--ease);
        }
        .footer-bottom a:hover {
            color: var(--accent-light);
        }

        /* 响应式 */
        @media (max-width: 1199.98px) {
            .nav-item {
                width: 48px;
            }
            .nav-item .nav-label {
                font-size: 11px;
            }
            .footer-top {
                grid-template-columns: 1.4fr 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 991.98px) {
            .nav-panel {
                height: 68px;
                padding: 0 16px;
                gap: 16px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 68px;
                left: 16px;
                right: 16px;
                background: var(--bg-warm);
                border: 1px solid var(--border);
                border-radius: 16px;
                flex-direction: column;
                padding: 16px;
                gap: 8px;
                box-shadow: var(--shadow-hover);
                z-index: 1040;
                align-items: stretch;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-item {
                width: 100%;
                height: 48px;
                flex-direction: row;
                justify-content: flex-start;
                gap: 12px;
                padding: 0 16px;
                border-radius: 12px;
            }
            .nav-item .nav-icon {
                font-size: 15px;
            }
            .nav-item .nav-label {
                font-size: 14px;
            }
            .nav-toggle {
                display: flex;
                margin-left: auto;
            }
            .nav-cta {
                display: none;
            }
            .category-hero {
                padding: 56px 0 44px;
            }
            .category-hero h1 {
                font-size: 36px;
            }
            .category-hero .hero-desc {
                font-size: 16px;
            }
            .scenario-content {
                padding: 24px 0 0;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 767.98px) {
            .content-section,
            .steps-section,
            .security-section,
            .faq-section {
                padding: 56px 0;
            }
            .section-header {
                flex-wrap: wrap;
                gap: 8px;
            }
            .section-header .section-sub {
                margin-left: 0;
                text-align: left;
                max-width: 100%;
            }
            .feature-card {
                padding: 24px 20px;
            }
            .step-number {
                width: 52px;
                height: 52px;
                font-size: 17px;
            }
            .steps-list::before {
                left: 25px;
            }
            .step-content {
                padding: 16px 18px;
            }
            .scenario-media {
                min-height: 220px;
                margin-bottom: 8px;
            }
            .cta-card {
                padding: 36px 24px;
            }
            .cta-card h2 {
                font-size: 22px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 575.98px) {
            .container {
                padding-right: 16px;
                padding-left: 16px;
            }
            .category-hero h1 {
                font-size: 30px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .category-hero {
                padding: 44px 0 36px;
            }
            .brand-text {
                font-size: 16px;
            }
            .brand-min {
                min-width: auto;
            }
            .step-item {
                gap: 14px;
            }
            .steps-list::before {
                left: 21px;
            }
            .step-number {
                width: 44px;
                height: 44px;
                font-size: 15px;
                border-width: 1px;
            }
            .cta-actions .btn {
                width: 100%;
            }
        }

/* roulang page: article */
:root {
    --primary: #14181F;
    --primary-hover: #1D2229;
    --primary-active: #0F1216;
    --accent: #A98D57;
    --accent-light: #C9AE78;
    --accent-bg: rgba(201,174,120,0.10);
    --bg: #F7F5F0;
    --bg-secondary: #EFEBE2;
    --text: #2A2A28;
    --text-secondary: #6E6A60;
    --text-muted: #989383;
    --border: #E2DDD2;
    --border-dark: rgba(255,255,255,0.12);
    --font-serif: 'Noto Serif SC', serif;
    --font-sans: 'Noto Sans SC', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;
    --radius-lg: 20px;
    --radius-md: 16px;
    --radius-sm: 12px;
    --shadow-sm: 0 1px 3px rgba(20,24,31,0.04), 0 4px 12px rgba(20,24,31,0.04);
    --shadow-hover: 0 2px 6px rgba(20,24,31,0.06), 0 12px 32px rgba(20,24,31,0.10);
    --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
}
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
    background: var(--bg-secondary);
}
a {
    color: inherit;
    text-decoration: none;
    transition: all 250ms var(--ease);
}
a:hover {
    color: var(--accent);
}
ul, ol {
    margin: 0;
    padding: 0;
    list-style: none;
}
button {
    font-family: var(--font-sans);
    cursor: pointer;
}
.container {
    max-width: 1200px;
    width: 100%;
    margin-inline: auto;
    padding-inline: 24px;
}
.btn {
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    padding: 13px 26px;
    transition: all 250ms var(--ease);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 1px solid transparent;
    line-height: 1.4;
}
.btn:focus-visible,
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}
.btn-primary {
    background: var(--primary);
    color: #F7F5F0;
    border-color: var(--primary);
}
.btn-primary:hover {
    background: var(--primary-hover);
    color: #F7F5F0;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(20,24,31,0.18);
}
.btn-primary:active {
    background: var(--primary-active);
    transform: translateY(0);
}
.btn-gold {
    background: var(--accent-light);
    color: var(--primary);
    border-color: var(--accent-light);
}
.btn-gold:hover {
    background: #D8BA85;
    color: var(--primary);
    box-shadow: 0 4px 16px rgba(201,174,120,0.35);
    transform: translateY(-1px);
}
.btn-outline {
    background: transparent;
    color: var(--text);
    border-color: #D4CBB8;
}
.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(169,141,87,0.06);
}
.btn-outline-light {
    background: transparent;
    color: #E8E4DA;
    border-color: rgba(255,255,255,0.3);
}
.btn-outline-light:hover {
    border-color: var(--accent-light);
    color: var(--accent-light);
    background: rgba(201,174,120,0.06);
}

.site-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 76px;
    gap: 20px;
    position: relative;
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-width: 150px;
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 18px;
    color: var(--text);
}
.brand:hover {
    color: var(--text);
}
.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: var(--primary);
    color: var(--accent-light);
    border-radius: 10px;
    font-family: var(--font-serif);
    font-weight: 900;
    font-size: 18px;
    flex-shrink: 0;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}
.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: var(--radius-sm);
    gap: 3px;
    color: var(--text-secondary);
    transition: all 250ms var(--ease);
    border: 1px solid transparent;
}
.nav-item:hover {
    background: var(--accent-bg);
    color: var(--text);
    transform: translateY(-1px);
}
.nav-item.active {
    background: rgba(201,174,120,0.14);
    border-color: var(--accent-light);
    color: var(--text);
}
.nav-icon {
    font-size: 16px;
    line-height: 1;
}
.nav-label {
    font-size: 12px;
    font-weight: 500;
    line-height: 1;
}
.nav-cta {
    white-space: nowrap;
}
.nav-toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--border);
    font-size: 20px;
    color: var(--text);
    width: 42px;
    height: 42px;
    border-radius: 10px;
    align-items: center;
    justify-content: center;
    transition: all 250ms var(--ease);
}
.nav-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.article-main {
    padding-bottom: 0;
}
.article-header-area {
    padding: 56px 0 40px;
    text-align: center;
    background: linear-gradient(to bottom, var(--bg) 0%, #FFFFFF 100%);
    border-bottom: 1px solid var(--border);
}
.breadcrumb-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 20px;
}
.breadcrumb-nav a {
    color: var(--text-muted);
}
.breadcrumb-nav a:hover {
    color: var(--accent);
}
.breadcrumb-nav .sep {
    color: var(--border);
}
.breadcrumb-nav .current {
    color: var(--text);
    font-weight: 500;
    max-width: 260px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.article-title {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 40px;
    line-height: 1.3;
    color: var(--text);
    margin-bottom: 24px;
    letter-spacing: 0.01em;
    max-width: 860px;
    margin-inline: auto;
}
.article-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px 20px;
    font-size: 13px;
    color: var(--text-secondary);
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border);
}
.article-meta .badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 14px;
    border-radius: 999px;
    border: 1px solid #D4CBB8;
    background: var(--bg);
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.03em;
}
.article-meta .badge.gold {
    border-color: var(--accent-light);
    color: #8A6D3B;
    background: var(--accent-bg);
}
.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.meta-item i {
    color: var(--accent);
    font-size: 14px;
}
.save-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: transparent;
    border: 1px solid var(--border);
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 250ms var(--ease);
}
.save-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-bg);
}
.save-btn.saved {
    background: var(--accent-bg);
    border-color: var(--accent-light);
    color: #8A6D3B;
}

.article-body-wrap {
    padding: 48px 0 24px;
}
.article-body-card {
    max-width: 760px;
    margin: 0 auto;
    background: #FFFFFF;
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}
.article-body {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text);
}
.article-body p {
    margin-bottom: 1.5em;
}
.article-body h2 {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 700;
    margin: 2em 0 0.9em;
    line-height: 1.4;
    color: var(--text);
    letter-spacing: 0.01em;
}
.article-body h3 {
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 700;
    margin: 1.8em 0 0.7em;
    color: var(--text);
}
.article-body ul {
    list-style: disc;
    padding-left: 1.5em;
    margin: 0 0 1.5em;
}
.article-body ol {
    list-style: decimal;
    padding-left: 1.5em;
    margin: 0 0 1.5em;
}
.article-body li {
    margin-bottom: 0.6em;
}
.article-body blockquote {
    border-left: 4px solid var(--accent);
    background: var(--bg-secondary);
    padding: 16px 24px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 1.5em 0;
    color: var(--text-secondary);
    font-style: normal;
}
.article-body blockquote p {
    margin-bottom: 0;
}
.article-body img {
    border-radius: var(--radius-sm);
    margin: 1.5em auto;
    width: 100%;
}
.article-body figure {
    margin: 1.5em 0;
}
.article-body figcaption {
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
    padding: 6px 0;
}
.article-body a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 4px;
    text-decoration-color: rgba(169,141,87,0.4);
}
.article-body a:hover {
    color: #8A6D3B;
    text-decoration-color: var(--accent);
}
.article-body code {
    background: var(--bg-secondary);
    padding: 2px 8px;
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 0.9em;
    color: var(--text);
}
.article-body pre {
    background: var(--primary);
    color: #E8E4DA;
    padding: 20px;
    border-radius: var(--radius-sm);
    overflow-x: auto;
    margin: 1.5em 0;
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.7;
}
.article-body pre code {
    background: transparent;
    color: inherit;
    padding: 0;
}
.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5em 0;
}
.article-body th,
.article-body td {
    border: 1px solid var(--border);
    padding: 10px 14px;
    font-size: 14px;
    text-align: left;
}
.article-body th {
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text);
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}
.tag {
    display: inline-flex;
    align-items: center;
    padding: 5px 14px;
    border-radius: 999px;
    border: 1px solid var(--border);
    font-size: 12px;
    color: var(--text-muted);
    transition: all 250ms var(--ease);
    font-family: var(--font-sans);
}
.tag:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-bg);
}

.not-found-box {
    text-align: center;
    padding: 80px 24px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
}
.not-found-box i {
    font-size: 42px;
    color: var(--accent);
    margin-bottom: 16px;
    display: block;
}
.not-found-box h3 {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
}
.not-found-box p {
    font-size: 14px;
    margin-bottom: 24px;
}

.related-section {
    padding: 64px 0 72px;
    background: var(--bg-secondary);
}
.section-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 36px;
}
.section-header h2 {
    font-family: var(--font-serif);
    font-size: 26px;
    font-weight: 700;
    color: var(--text);
    margin: 0;
    white-space: nowrap;
}
.deco-line {
    width: 40px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
    flex-shrink: 0;
}
.related-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 24px;
    align-items: stretch;
}
.related-side {
    display: grid;
    grid-template-rows: 1fr 1fr;
    gap: 24px;
}
.related-card {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 250ms var(--ease);
    display: block;
    min-height: 168px;
}
.related-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(20,24,31,0.72) 0%, rgba(20,24,31,0.28) 55%, transparent 100%);
    z-index: 1;
    transition: all 250ms var(--ease);
}
.related-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}
.related-card:hover::after {
    background: linear-gradient(to top, rgba(20,24,31,0.80) 0%, rgba(20,24,31,0.35) 60%, transparent 100%);
}
.related-card img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.related-card.featured {
    min-height: 360px;
}
.related-overlay {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 24px;
    color: #F7F5F0;
    min-height: inherit;
}
.related-overlay .badge {
    display: inline-flex;
    align-self: flex-start;
    align-items: center;
    padding: 3px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid var(--accent-light);
    color: var(--accent-light);
    background: rgba(20,24,31,0.45);
    margin-bottom: 10px;
}
.related-overlay h3 {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 700;
    color: #F7F5F0;
    margin: 0 0 4px;
    line-height: 1.4;
}
.related-overlay p {
    font-size: 14px;
    color: rgba(247,245,240,0.85);
    margin: 0;
}
.related-card.mini .related-overlay {
    padding: 18px 20px;
}
.related-card.mini .related-overlay h3 {
    font-size: 17px;
}
.related-card.mini .related-overlay p {
    font-size: 13px;
}
.back-link {
    margin-top: 40px;
    text-align: center;
}
.back-link a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}
.back-link a:hover {
    color: var(--accent);
}
.back-link a i {
    font-size: 13px;
    transition: transform 250ms var(--ease);
}
.back-link a:hover i {
    transform: translateX(-4px);
}

.article-cta {
    padding: 64px 0;
    background: var(--primary);
    position: relative;
}
.article-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--accent);
    opacity: 0.4;
}
.cta-card {
    text-align: center;
    padding: 56px 40px;
    background: #1D2229;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-dark);
    max-width: 800px;
    margin: 0 auto;
}
.cta-card h2 {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 700;
    color: #F7F5F0;
    margin-bottom: 12px;
    line-height: 1.3;
}
.cta-card p {
    color: rgba(247,245,240,0.72);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 32px;
}
.cta-actions {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

.site-footer {
    background: var(--primary);
    color: #E8E4DA;
    padding: 64px 0 0;
}
.footer-top {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 48px;
}
.footer-brand .brand {
    color: #F7F5F0;
    margin-bottom: 12px;
    display: inline-flex;
}
.footer-brand .brand-mark {
    background: var(--accent-light);
    color: var(--primary);
}
.footer-desc {
    font-size: 14px;
    color: rgba(232,228,218,0.6);
    line-height: 1.7;
    max-width: 280px;
    margin-top: 14px;
}
.footer-col h4 {
    font-family: var(--font-serif);
    font-size: 16px;
    font-weight: 700;
    color: #F7F5F0;
    margin-bottom: 20px;
    letter-spacing: 0.02em;
}
.footer-col ul li {
    margin-bottom: 12px;
}
.footer-col ul li a {
    color: rgba(232,228,218,0.7);
    font-size: 14px;
    transition: all 250ms var(--ease);
}
.footer-col ul li a:hover {
    color: var(--accent-light);
    padding-left: 4px;
}
.footer-col ul li span {
    color: rgba(232,228,218,0.6);
    font-size: 14px;
}
.footer-divider {
    border: none;
    border-top: 1px solid var(--border-dark);
    margin: 0;
}
.footer-about {
    padding: 20px 0;
    font-size: 13px;
    color: rgba(232,228,218,0.5);
    text-align: center;
    line-height: 1.6;
}
.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 0 32px;
    font-size: 12px;
    color: #8A8578;
    flex-wrap: wrap;
    gap: 12px;
    width: 100%;
}
.footer-bottom a {
    color: #8A8578;
}
.footer-bottom a:hover {
    color: var(--accent-light);
}

@media (max-width: 1200px) {
    .container {
        padding-inline: 20px;
    }
    .related-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 992px) {
    .nav-toggle {
        display: inline-flex;
    }
    .nav-links {
        display: none;
        position: absolute;
        top: calc(100% + 8px);
        left: 20px;
        right: 20px;
        background: var(--bg-secondary);
        border-radius: var(--radius-md);
        padding: 12px;
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
        box-shadow: var(--shadow-hover);
        border: 1px solid var(--border);
        z-index: 200;
    }
    .nav-links.open {
        display: flex;
    }
    .nav-item {
        flex-direction: row;
        justify-content: flex-start;
        width: 100%;
        height: auto;
        padding: 12px 16px;
        gap: 14px;
        border-radius: var(--radius-sm);
    }
    .nav-item .nav-icon {
        font-size: 18px;
        width: 24px;
        text-align: center;
    }
    .nav-item .nav-label {
        font-size: 14px;
    }
    .nav-panel {
        min-height: 68px;
    }
    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    .related-grid {
        grid-template-columns: 1fr;
    }
    .related-side {
        grid-template-rows: 1fr 1fr;
    }
    .related-card.featured {
        min-height: 320px;
    }
    .related-card.mini {
        min-height: 200px;
    }
    .article-title {
        font-size: 32px;
    }
    .article-header-area {
        padding: 40px 0 32px;
    }
}

@media (max-width: 768px) {
    .container {
        padding-inline: 16px;
    }
    .article-body-card {
        padding: 32px 24px;
        border-radius: var(--radius-md);
    }
    .article-title {
        font-size: 28px;
    }
    .article-meta {
        gap: 10px 14px;
    }
    .related-grid {
        gap: 16px;
    }
    .related-side {
        gap: 16px;
    }
    .footer-top {
        grid-template-columns: 1fr;
        gap: 32px;
        padding-bottom: 32px;
    }
    .footer-desc {
        max-width: 100%;
    }
    .cta-card {
        padding: 40px 20px;
    }
    .cta-card h2 {
        font-size: 24px;
    }
    .brand-text {
        font-size: 16px;
    }
    .nav-cta {
        padding: 12px 18px;
        font-size: 13px;
    }
}

@media (max-width: 576px) {
    .article-header-area {
        padding: 32px 0 24px;
    }
    .article-title {
        font-size: 24px;
        line-height: 1.35;
    }
    .article-body-card {
        padding: 24px 16px;
        border-radius: 0;
        border-left: none;
        border-right: none;
        box-shadow: none;
    }
    .article-body {
        font-size: 15px;
    }
    .article-body h2 {
        font-size: 20px;
    }
    .related-card.featured {
        min-height: 260px;
    }
    .related-card.mini {
        min-height: 180px;
    }
    .related-overlay {
        padding: 16px;
    }
    .related-overlay h3 {
        font-size: 16px;
    }
    .related-overlay p {
        font-size: 13px;
    }
    .cta-card h2 {
        font-size: 22px;
    }
    .cta-actions {
        flex-direction: column;
        align-items: stretch;
    }
    .cta-actions .btn {
        width: 100%;
    }
    .footer-bottom {
        flex-direction: column;
        justify-content: center;
        text-align: center;
    }
    .nav-panel {
        padding: 0 4px;
        gap: 8px;
    }
    .brand {
        min-width: 0;
    }
    .brand-text {
        display: none;
    }
    .nav-cta {
        padding: 12px 16px;
    }
}

/* roulang page: category2 */
/* ============ CSS 变量与 Reset ============ */
:root {
    --primary: #14181F;
    --primary-light: #1D2229;
    --accent: #A98D57;
    --accent-light: #C9AE78;
    --accent-soft: rgba(201, 174, 120, 0.10);
    --bg-warm: #F7F5F0;
    --bg-card: #EFEBE2;
    --text-main: #2A2A28;
    --text-secondary: #6E6A60;
    --text-muted: #989383;
    --border-color: #E2DDD2;
    --footer-bg: #16181D;
    --footer-text: #E8E4DA;
    --radius-lg: 20px;
    --radius-md: 16px;
    --radius-sm: 12px;
    --shadow-sm: 0 1px 3px rgba(20, 24, 31, 0.04), 0 4px 12px rgba(20, 24, 31, 0.04);
    --shadow-hover: 0 2px 6px rgba(20, 24, 31, 0.06), 0 12px 32px rgba(20, 24, 31, 0.10);
    --transition-fast: 150ms cubic-bezier(0.2, 0.6, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.2, 0.6, 0.2, 1);
    --font-title: 'Noto Serif SC', serif;
    --font-body: 'Noto Sans SC', sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-body);
    background: var(--bg-warm);
    color: var(--text-main);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition-fast); }
a:hover { color: var(--accent); }
button { background: none; border: none; cursor: pointer; }
input, textarea, select { font-family: inherit; }
.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
h1, h2, h3, h4, h5 {
    font-family: var(--font-title);
    color: var(--text-main);
    line-height: 1.3;
}

/* ============ Header / 导航面板 ============ */
.site-header {
    background: var(--bg-warm);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    z-index: 100;
}
.nav-panel {
    display: flex;
    align-items: center;
    gap: 20px;
    min-height: 76px;
    background: var(--bg-warm);
    padding: 0 24px;
    border-bottom: 1px solid var(--border-color);
}
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 150px;
}
.brand-mark {
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: var(--accent-light);
    font-family: var(--font-title);
    font-weight: 700;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}
.brand-text {
    font-family: var(--font-title);
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 0.01em;
    white-space: nowrap;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    justify-content: center;
}
.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 52px;
    border-radius: var(--radius-sm);
    background: transparent;
    border: 1px solid transparent;
    transition: all var(--transition-normal);
    color: var(--text-secondary);
    gap: 2px;
}
.nav-item .nav-icon {
    font-size: 16px;
    line-height: 1;
    transition: transform var(--transition-fast);
}
.nav-item .nav-label {
    font-size: 12px;
    font-weight: 500;
    line-height: 1.2;
}
.nav-item:hover {
    background: var(--bg-card);
    color: var(--primary);
}
.nav-item:hover .nav-icon {
    transform: scale(1.05);
}
.nav-item.active {
    background: var(--accent-soft);
    border-color: rgba(201, 174, 120, 0.4);
    color: #8A6D3B;
    font-weight: 500;
}
.nav-item.active .nav-icon {
    color: var(--accent);
}
.nav-cta {
    white-space: nowrap;
}
.btn {
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    padding: 12px 24px;
    transition: all var(--transition-normal);
    border: 1px solid transparent;
    font-family: var(--font-body);
    line-height: 1.2;
}
.btn-primary {
    background: var(--primary);
    color: var(--bg-warm);
    border-color: var(--primary);
}
.btn-primary:hover {
    background: var(--primary-light);
    color: var(--bg-warm);
    box-shadow: 0 4px 16px rgba(20, 24, 31, 0.18);
    transform: translateY(-1px);
    border-color: var(--primary-light);
}
.btn-primary:active {
    background: #0F1216;
    transform: translateY(0);
    box-shadow: none;
}
.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1px solid #D4CBB8;
}
.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(169, 141, 87, 0.06);
}
.btn-outline-light {
    background: transparent;
    color: var(--footer-text);
    border: 1px solid rgba(255, 255, 255, 0.3);
}
.btn-outline-light:hover {
    border-color: var(--accent-light);
    color: var(--accent-light);
    background: rgba(169, 141, 87, 0.08);
}
.btn-gold {
    background: var(--accent-light);
    color: var(--primary);
    border-color: var(--accent-light);
}
.btn-gold:hover {
    background: var(--accent);
    color: var(--primary);
    border-color: var(--accent);
    box-shadow: 0 4px 16px rgba(169, 141, 87, 0.25);
    transform: translateY(-1px);
}
.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-warm);
    color: var(--primary);
    font-size: 18px;
    align-items: center;
    justify-content: center;
}
.nav-toggle:hover {
    background: var(--bg-card);
}

/* 移动端导航菜单 */
.mobile-nav {
    display: none;
    background: var(--bg-warm);
    border-bottom: 1px solid var(--border-color);
    padding: 8px 16px 16px;
}
.mobile-nav .nav-item {
    flex-direction: row;
    justify-content: flex-start;
    width: 100%;
    height: 48px;
    gap: 12px;
    padding: 0 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 4px;
}
.mobile-nav .nav-label {
    font-size: 14px;
}

/* ============ 分类页 Hero ============ */
.category-hero {
    position: relative;
    height: 320px;
    min-height: 280px;
    background-image: linear-gradient(rgba(247, 245, 240, 0.55) 0%, rgba(247, 245, 240, 0.85) 100%), url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}
.category-hero .hero-content {
    padding: 40px 0;
}
.category-hero h1 {
    font-size: 40px;
    font-weight: 900;
    color: var(--primary);
    margin-bottom: 12px;
    letter-spacing: 0.01em;
}
.category-hero .hero-desc {
    font-size: 18px;
    color: #4A4742;
    max-width: 560px;
    line-height: 1.7;
    font-weight: 400;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-soft);
    border: 1px solid rgba(201, 174, 120, 0.4);
    color: #8A6D3B;
    font-size: 12px;
    font-weight: 500;
    padding: 4px 14px;
    border-radius: 999px;
    margin-bottom: 20px;
}

/* ============ 合集目录区 ============ */
.collection-section {
    padding: 64px 0;
}
.collection-panel {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-sm);
}
.collection-panel .panel-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 6px;
}
.collection-panel .panel-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}
.collection-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}
.collection-card {
    background: var(--bg-warm);
    border-radius: var(--radius-md);
    padding: 24px;
    display: flex;
    align-items: flex-start;
    gap: 14px;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}
.collection-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(169, 141, 87, 0.4);
}
.collection-card:hover .card-arrow {
    transform: translateX(4px);
    color: var(--accent);
}
.collection-num {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 20px;
    font-weight: 500;
    color: var(--accent);
    line-height: 1.2;
    flex-shrink: 0;
}
.collection-info {
    flex: 1;
}
.collection-info .name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 4px;
}
.collection-info .count {
    font-size: 12px;
    color: var(--text-muted);
}
.card-arrow {
    color: var(--text-muted);
    font-size: 14px;
    transition: transform var(--transition-fast), color var(--transition-fast);
    margin-top: 4px;
}

/* ============ 精选步骤区 ============ */
.steps-section {
    padding: 64px 0;
    background: var(--bg-warm);
}
.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 32px;
    position: relative;
}
.section-head h2 {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 0;
    position: relative;
    padding-left: 20px;
}
.section-head h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 26px;
    background: var(--accent);
    border-radius: 2px;
}
.section-link {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
}
.section-link:hover {
    color: var(--accent);
}
.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.step-card {
    background: var(--bg-warm);
    border-radius: var(--radius-md);
    padding: 28px 24px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    position: relative;
}
.step-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(169, 141, 87, 0.4);
}
.step-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-soft);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 18px;
    margin-bottom: 16px;
}
.step-card h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 10px;
    font-family: var(--font-body);
}
.step-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 14px;
}
.step-tag {
    display: inline-block;
    font-size: 12px;
    color: var(--accent);
    font-weight: 500;
    background: var(--accent-soft);
    padding: 2px 10px;
    border-radius: 999px;
}

/* ============ 登录准备清单 ============ */
.checklist-section {
    padding: 64px 0;
    background: var(--primary);
    color: var(--footer-text);
}
.checklist-section .section-head h2 {
    color: var(--footer-text);
}
.checklist-section .section-head h2::before {
    background: var(--accent-light);
}
.checklist-section .section-link {
    color: rgba(255, 255, 255, 0.7);
}
.checklist-section .section-link:hover {
    color: var(--accent-light);
}
.checklist-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
.checklist-item {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 24px;
    display: flex;
    gap: 16px;
    transition: all var(--transition-normal);
}
.checklist-item:hover {
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(201, 174, 120, 0.3);
}
.checklist-item .check-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(201, 174, 120, 0.15);
    border: 1px solid rgba(201, 174, 120, 0.4);
    color: var(--accent-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    flex-shrink: 0;
    margin-top: 2px;
}
.checklist-item h3 {
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 600;
    color: var(--footer-text);
    margin-bottom: 6px;
}
.checklist-item p {
    font-size: 14px;
    color: rgba(232, 228, 218, 0.75);
    line-height: 1.7;
    margin-bottom: 0;
}

/* ============ 常见问题 FAQ ============ */
.faq-section {
    padding: 64px 0;
    background: var(--bg-warm);
}
.faq-panel {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 32px;
}
.faq-item {
    background: var(--bg-warm);
    border-radius: var(--radius-sm);
    padding: 20px 24px;
    margin-bottom: 8px;
    border: 1px solid var(--border-color);
    transition: border-color var(--transition-fast);
}
.faq-item:last-child {
    margin-bottom: 0;
}
.faq-item:hover {
    border-color: rgba(169, 141, 87, 0.4);
}
.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    font-family: var(--font-body);
}
.faq-question .faq-icon {
    font-size: 18px;
    color: var(--accent);
    transition: transform var(--transition-normal);
    flex-shrink: 0;
    margin-left: 16px;
}
.faq-item.open .faq-icon {
    transform: rotate(45deg);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 400ms ease;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}
.faq-item.open .faq-answer {
    max-height: 300px;
    padding-top: 12px;
}

/* ============ 推荐区 ============ */
.recommend-section {
    padding: 64px 0;
    background: var(--bg-warm);
}
.recommend-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 24px;
}
.recommend-card {
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--bg-warm);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    position: relative;
}
.recommend-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}
.recommend-card.image-card .card-img-wrap {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
}
.recommend-card.image-card .card-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 400ms ease;
}
.recommend-card.image-card:hover .card-img-wrap img {
    transform: scale(1.03);
}
.recommend-card.image-card .card-img-wrap::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(20, 24, 31, 0.55) 0%, transparent 100%);
}
.recommend-card.image-card .card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    z-index: 2;
}
.recommend-card.image-card .card-overlay h3 {
    color: #fff;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 6px;
    line-height: 1.4;
}
.recommend-card.image-card .card-overlay p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 13px;
    margin-bottom: 0;
    line-height: 1.5;
}
.recommend-card.text-card {
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.recommend-card.text-card .card-overline {
    font-size: 12px;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 8px;
}
.recommend-card.text-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.5;
}
.recommend-card.text-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}
.recommend-card.text-card .btn-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-main);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all var(--transition-fast);
}
.recommend-card.text-card .btn-link:hover {
    color: var(--accent);
    gap: 10px;
}

/* ============ CTA 区 ============ */
.cta-section {
    padding: 64px 0;
    background: var(--bg-warm);
}
.cta-panel {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 48px;
    text-align: center;
    border-bottom: 2px solid var(--accent);
    box-shadow: var(--shadow-sm);
}
.cta-panel h2 {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 12px;
}
.cta-panel p {
    font-size: 15px;
    color: var(--text-secondary);
    max-width: 480px;
    margin: 0 auto 28px;
    line-height: 1.7;
}
.cta-actions {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============ 页脚 ============ */
.site-footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    padding-top: 56px;
    font-size: 14px;
}
.footer-top {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 0.8fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
}
.footer-brand .brand {
    margin-bottom: 16px;
}
.footer-brand .brand-mark {
    background: var(--accent-light);
    color: var(--primary);
}
.footer-brand .brand-text {
    color: var(--footer-text);
}
.footer-desc {
    font-size: 13px;
    color: #8A8578;
    line-height: 1.7;
    max-width: 280px;
    margin-bottom: 0;
}
.footer-col h4 {
    color: var(--footer-text);
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 16px;
}
.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-col li {
    margin-bottom: 10px;
}
.footer-col a {
    color: #A09B8E;
    font-size: 13px;
    transition: color var(--transition-fast);
}
.footer-col a:hover {
    color: var(--accent-light);
}
.footer-col .footer-contact {
    color: #A09B8E;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.footer-divider {
    border: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    margin: 0;
}
.footer-about {
    padding: 16px 0;
    font-size: 12px;
    color: #8A8578;
    text-align: center;
}
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0 28px;
    font-size: 12px;
    color: #8A8578;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    margin-top: 0;
}
.footer-bottom a {
    color: #8A8578;
    margin: 0 4px;
}
.footer-bottom a:hover {
    color: var(--accent-light);
}

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

/* ============ 响应式断点 ============ */
@media (max-width: 1199.98px) {
    .nav-item {
        width: 52px;
    }
    .nav-item .nav-label {
        display: none;
    }
    .nav-item {
        flex-direction: row;
        height: 44px;
        width: 44px;
    }
    .collection-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 991.98px) {
    .nav-panel {
        padding: 0 16px;
        gap: 12px;
    }
    .nav-links {
        display: none;
    }
    .nav-toggle {
        display: flex;
        margin-left: auto;
    }
    .nav-cta {
        display: none;
    }
    .mobile-nav.show {
        display: block;
    }
    .collection-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .steps-grid {
        grid-template-columns: 1fr 1fr;
    }
    .steps-section,
    .checklist-section,
    .faq-section,
    .recommend-section,
    .cta-section {
        padding: 48px 0;
    }
    .category-hero {
        height: 280px;
    }
    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    .checklist-grid {
        grid-template-columns: 1fr;
    }
    .recommend-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 767.98px) {
    .container {
        padding-left: 16px;
        padding-right: 16px;
    }
    .category-hero h1 {
        font-size: 32px;
    }
    .category-hero .hero-desc {
        font-size: 16px;
    }
    .collection-panel {
        padding: 24px 16px;
    }
    .collection-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .steps-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .faq-panel {
        padding: 24px 16px;
    }
    .cta-panel {
        padding: 32px 20px;
    }
    .brand-text {
        font-size: 16px;
    }
    .brand-mark {
        width: 36px;
        height: 36px;
        font-size: 18px;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}

@media (max-width: 575.98px) {
    .category-hero {
        height: auto;
        min-height: 260px;
        padding: 40px 0;
    }
    .category-hero h1 {
        font-size: 28px;
    }
    .section-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    .section-head h2 {
        font-size: 22px;
    }
    .cta-actions {
        flex-direction: column;
        width: 100%;
    }
    .cta-actions .btn {
        width: 100%;
    }
    .footer-top {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .footer-container {
        padding: 0 16px;
    }
    .site-footer .container {
        padding-left: 16px;
        padding-right: 16px;
    }
}