/* roulang page: index */
:root {
            --bg: #F5F2ED;
            --bg-alt: #EAE5DC;
            --card: #FFFFFF;
            --charcoal: #141414;
            --charcoal-border: #2B2B2B;
            --amber: #E8A33D;
            --amber-hover: #F2B84F;
            --text: #1A1A1A;
            --text-sub: #5F5A52;
            --text-light: #F5F0E6;
            --text-dark-placeholder: #A39D91;
            --border: #D9D2C5;
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --radius-tag: 999px;
            --shadow-sm: 0 8px 24px rgba(0,0,0,0.06);
            --shadow-hover: 0 16px 36px rgba(0,0,0,0.12);
            --shadow-dark-hover: 0 0 0 1px #E8A33D;
            --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            --section-pad: 64px;
            --container: 1200px;
            --transition: all .2s ease;
        }

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

        html { scroll-behavior: smooth; }

        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img { max-width: 100%; display: block; }
        a { text-decoration: none; color: inherit; }
        ul, ol { list-style: none; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; }

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--charcoal);
            border-bottom: 1px solid var(--charcoal-border);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }

        .logo {
            font-weight: 800;
            font-size: 16px;
            color: var(--text-light);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .main-nav a {
            color: #C9C4BB;
            font-size: 14px;
            font-weight: 500;
            padding: 6px 0;
            position: relative;
            transition: var(--transition);
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: var(--text-light);
        }

        .main-nav a.active {
            color: var(--amber);
            font-weight: 700;
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background: var(--amber);
            border-radius: 2px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            width: 40px;
            height: 40px;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-light);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* Hero */
        .hero {
            background: var(--charcoal);
            position: relative;
            overflow: hidden;
            padding: 72px 0 80px;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/baca05c7896187ae.webp') center/cover no-repeat;
            opacity: 0.25;
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(20,20,20,0.92) 0%, rgba(20,20,20,0.65) 50%, rgba(20,20,20,0.4) 100%);
            z-index: 2;
        }

        .hero .container {
            position: relative;
            z-index: 3;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content h1 {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-light);
            margin-bottom: 16px;
        }

        .hero-content .hero-subtitle {
            font-size: 17px;
            color: #C9C4BB;
            line-height: 1.7;
            margin-bottom: 25px;
            max-width: 520px;
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 30px;
        }

        .hero-tags .tag {
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(232,163,61,0.4);
            color: var(--amber);
            font-size: 12px;
            padding: 5px 14px;
            border-radius: var(--radius-tag);
            transition: var(--transition);
        }

        .hero-tags .tag:hover {
            background: rgba(232,163,61,0.15);
        }

        .hero-search-card {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-hover);
        }

        .hero-search-card h2 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }

        .hero-search-card .search-desc {
            font-size: 13px;
            color: var(--text-sub);
            margin-bottom: 16px;
        }

        .search-box {
            display: flex;
            gap: 10px;
        }

        .search-box input {
            flex: 1;
            padding: 11px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-input);
            background: var(--bg);
            font-size: 14px;
            color: var(--text);
            outline: none;
            transition: var(--transition);
        }

        .search-box input::placeholder {
            color: var(--text-dark-placeholder);
        }

        .search-box input:focus {
            border-color: var(--amber);
            box-shadow: 0 0 0 2px rgba(232,163,61,0.2);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            border: none;
            transition: var(--transition);
            white-space: nowrap;
            text-align: center;
        }

        .btn-primary {
            background: var(--amber);
            color: #141414;
        }

        .btn-primary:hover {
            background: var(--amber-hover);
            transform: translateY(-1px);
        }

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

        .btn-primary:focus-visible {
            outline: 2px solid var(--amber);
            outline-offset: 2px;
        }

        .btn-secondary {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text);
        }

        .btn-secondary:hover {
            border-color: var(--amber);
            color: var(--amber);
        }

        .btn-dark {
            background: var(--charcoal);
            color: var(--text-light);
            border: 1px solid var(--charcoal-border);
        }

        .btn-dark:hover {
            border-color: var(--amber);
            color: var(--amber);
        }

        /* Compliance strip */
        .compliance-strip {
            background: #FDF6E9;
            border-bottom: 1px solid #EBDCC0;
            padding: 10px 0;
            font-size: 12px;
            color: #6B5D3F;
        }

        .compliance-strip .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }

        .compliance-strip .close-strip {
            background: none;
            border: none;
            color: #6B5D3F;
            font-size: 16px;
            line-height: 1;
            padding: 2px 6px;
            cursor: pointer;
            transition: var(--transition);
        }

        .compliance-strip .close-strip:hover {
            color: var(--text);
        }

        /* Stats */
        .stats-section {
            padding: 38px 0;
            background: var(--card);
            border-bottom: 1px solid var(--border);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .stat-item .stat-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--amber);
            line-height: 1.2;
        }

        .stat-item .stat-label {
            font-size: 13px;
            color: var(--text-sub);
            margin-top: 4px;
        }

        /* Sections */
        .section {
            padding: var(--section-pad) 0;
        }

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

        .section-dark {
            background: var(--charcoal);
        }

        .section-header {
            margin-bottom: 36px;
        }

        .section-header h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 8px;
        }

        .section-header .section-sub {
            font-size: 15px;
            color: var(--text-sub);
        }

        .section-dark .section-header h2 {
            color: var(--text-light);
        }

        .section-dark .section-header .section-sub {
            color: #A9A39A;
        }

        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .step-card {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border);
        }

        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .step-card .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--amber);
            color: #141414;
            font-weight: 800;
            font-size: 16px;
            margin-bottom: 14px;
        }

        .step-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }

        .step-card p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        /* CMS List */
        .post-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .post-list-item {
            display: flex;
            gap: 18px;
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 16px 18px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border);
            align-items: center;
        }

        .post-list-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .post-list-thumb {
            width: 72px;
            height: 56px;
            border-radius: 8px;
            background: var(--bg-alt);
            overflow: hidden;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .post-list-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .post-list-content {
            flex: 1;
            min-width: 0;
        }

        .post-list-content h3 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .post-list-content .post-excerpt {
            font-size: 13px;
            color: var(--text-sub);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .post-list-meta {
            display: flex;
            flex-direction: column;
            align-items: flex-end;
            gap: 6px;
            flex-shrink: 0;
        }

        .post-list-meta .post-date {
            font-size: 12px;
            color: var(--text-sub);
        }

        .post-list-meta .post-category {
            font-size: 11px;
            color: var(--amber);
            background: #FDF6E9;
            border: 1px solid #EBDCC0;
            padding: 2px 10px;
            border-radius: var(--radius-tag);
        }

        .empty-state {
            background: var(--card);
            border: 1px dashed var(--border);
            border-radius: var(--radius-card);
            padding: 32px;
            text-align: center;
            color: var(--text-sub);
            font-size: 14px;
        }

        /* Category grid */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .category-card {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            border-left: 4px solid var(--amber);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .category-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }

        .category-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }

        .category-card p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
            flex: 1;
        }

        .category-card .cat-link {
            margin-top: 12px;
            font-size: 13px;
            font-weight: 600;
            color: var(--amber);
        }

        /* Comparison */
        .comparison-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .comparison-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

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

        .comparison-item .compare-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 18px;
            font-weight: 700;
            color: var(--amber);
        }

        .comparison-item h3 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 3px;
            color: var(--text);
        }

        .comparison-item p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        /* Article cards scroll */
        .article-scroll {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .article-card {
            background: var(--card);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border);
        }

        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .article-card-img {
            height: 160px;
            background: var(--bg-alt);
            overflow: hidden;
        }

        .article-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .article-card-body {
            padding: 18px 18px 20px;
        }

        .article-card-body h3 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
            line-height: 1.4;
        }

        .article-card-body p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
            margin-bottom: 10px;
        }

        .article-card-body .article-meta {
            font-size: 11px;
            color: var(--text-sub);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        /* Device grid */
        .device-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .device-card {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 22px 18px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .device-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }

        .device-card .device-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--bg-alt);
            margin: 0 auto 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--amber);
        }

        .device-card h3 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text);
        }

        .device-card p {
            font-size: 12px;
            color: var(--text-sub);
            line-height: 1.5;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--card);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item.active {
            background: var(--bg-alt);
            border-left: 3px solid var(--amber);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 17px 20px;
            background: none;
            border: none;
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: var(--transition);
        }

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

        .faq-question .faq-icon {
            font-size: 20px;
            line-height: 1;
            transition: var(--transition);
            flex-shrink: 0;
            margin-left: 12px;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--amber);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease, padding .3s ease;
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 220px;
            padding: 0 20px 16px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* Disclaimer */
        .disclaimer-card {
            background: #FFFBF1;
            border: 1px solid #EBDCC0;
            border-left: 4px solid var(--amber);
            border-radius: var(--radius-card);
            padding: 24px 26px;
            max-width: 760px;
        }

        .disclaimer-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }

        .disclaimer-card p {
            font-size: 14px;
            color: #6B5D3F;
            line-height: 1.7;
            margin-bottom: 6px;
        }

        .disclaimer-card a {
            color: var(--amber);
            font-weight: 600;
            text-decoration: underline;
        }

        /* Form */
        .feedback-form {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            max-width: 640px;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 5px;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-input);
            background: var(--bg);
            font-size: 14px;
            color: var(--text);
            outline: none;
            transition: var(--transition);
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--amber);
            box-shadow: 0 0 0 2px rgba(232,163,61,0.2);
        }

        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }

        .form-success {
            display: none;
            background: #F0F9F0;
            border: 1px solid #B8D8B8;
            border-radius: var(--radius-input);
            padding: 12px 16px;
            font-size: 13px;
            color: #2B6B2B;
            margin-top: 12px;
        }

        .form-success.show {
            display: block;
        }

        /* CTA */
        .cta-band {
            background: var(--charcoal);
            border-radius: var(--radius-card);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .cta-band h2 {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 6px;
        }

        .cta-band p {
            font-size: 14px;
            color: #A9A39A;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            flex-shrink: 0;
        }

        .cta-form input {
            padding: 11px 16px;
            border: 1px solid var(--charcoal-border);
            border-radius: var(--radius-input);
            background: #1E1E1E;
            color: var(--text-light);
            font-size: 14px;
            outline: none;
            min-width: 240px;
            transition: var(--transition);
        }

        .cta-form input::placeholder {
            color: #6B6760;
        }

        .cta-form input:focus {
            border-color: var(--amber);
        }

        /* Footer */
        .site-footer {
            background: var(--charcoal);
            padding: 48px 0 20px;
            border-top: 1px solid var(--charcoal-border);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }

        .footer-about h3 {
            font-size: 17px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 10px;
        }

        .footer-about p {
            font-size: 13px;
            color: #A9A39A;
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 12px;
        }

        .footer-col a {
            display: block;
            font-size: 13px;
            color: #A9A39A;
            padding: 4px 0;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--amber);
        }

        .footer-bottom {
            border-top: 1px solid var(--charcoal-border);
            padding-top: 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 12px;
            color: #6B6760;
        }

        .back-to-top {
            background: none;
            border: 1px solid var(--charcoal-border);
            border-radius: var(--radius-btn);
            color: #A9A39A;
            padding: 7px 16px;
            font-size: 13px;
            transition: var(--transition);
        }

        .back-to-top:hover {
            border-color: var(--amber);
            color: var(--amber);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-content h1 {
                font-size: 30px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-scroll {
                grid-template-columns: repeat(2, 1fr);
            }
            .device-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .site-header .container {
                height: 58px;
            }
            .main-nav {
                display: none;
                position: fixed;
                top: 58px;
                left: 0;
                right: 0;
                background: var(--charcoal);
                flex-direction: column;
                padding: 20px;
                gap: 0;
                border-bottom: 1px solid var(--charcoal-border);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 0;
                border-bottom: 1px solid var(--charcoal-border);
                font-size: 15px;
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .nav-toggle {
                display: flex;
            }
            .hero {
                padding: 48px 0 56px;
            }
            .hero-content h1 {
                font-size: 25px;
            }
            .hero-content .hero-subtitle {
                font-size: 15px;
            }
            .section {
                padding: 40px 0;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .steps-grid,
            .category-grid,
            .article-scroll,
            .device-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .stat-item .stat-number {
                font-size: 24px;
            }
            .cta-band {
                flex-direction: column;
                text-align: center;
            }
            .cta-form {
                flex-direction: column;
                width: 100%;
            }
            .cta-form input {
                min-width: auto;
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .post-list-item {
                flex-direction: column;
                align-items: flex-start;
            }
            .post-list-meta {
                flex-direction: row;
                align-items: center;
                gap: 12px;
            }
            .comparison-item {
                flex-direction: column;
                gap: 10px;
            }
            .search-box {
                flex-direction: column;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .hero {
                padding: 32px 0 40px;
            }
            .hero-content h1 {
                font-size: 22px;
            }
            .hero-search-card {
                padding: 18px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stats-section {
                padding: 24px 0;
            }
            .section {
                padding: 32px 0;
            }
            .section-header h2 {
                font-size: 19px;
            }
            .compliance-strip .container {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: article */
:root {
            --bg: #F5F2ED;
            --bg-alt: #EAE5DC;
            --card: #FFFFFF;
            --charcoal: #141414;
            --charcoal-border: #2B2B2B;
            --amber: #E8A33D;
            --amber-hover: #F2B84F;
            --text: #1A1A1A;
            --text-sub: #5F5A52;
            --text-light: #F5F0E6;
            --text-dark-placeholder: #A39D91;
            --border: #D9D2C5;
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --radius-tag: 999px;
            --shadow-sm: 0 8px 24px rgba(0,0,0,0.06);
            --shadow-hover: 0 16px 36px rgba(0,0,0,0.12);
            --shadow-dark-hover: 0 0 0 1px #E8A33D;
            --font: "PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
            --section-pad: 64px;
            --container: 1200px;
            --transition: all .2s ease;
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --radius-tag: 999px;
        }
        html { scroll-behavior: smooth; }
        * { box-sizing: border-box; }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
        }
        img { max-width: 100%; display: block; }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 20px;
        }
        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--charcoal);
            border-bottom: 1px solid var(--charcoal-border);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .logo {
            font-weight: 800;
            font-size: 16px;
            color: var(--text-light);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo .logo-accent {
            color: var(--amber);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            color: #C9C4BB;
            font-size: 14px;
            font-weight: 500;
            padding: 6px 0;
            position: relative;
            transition: var(--transition);
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--text-light);
        }
        .main-nav a.active {
            color: var(--amber);
            font-weight: 700;
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background: var(--amber);
            border-radius: 2px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            width: 40px;
            height: 40px;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-light);
            border-radius: 2px;
            transition: var(--transition);
        }
        /* Breadcrumb */
        .breadcrumb-bar {
            background: var(--bg-alt);
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
        }
        .breadcrumb-bar .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-sub);
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: var(--text-sub);
        }
        .breadcrumb-nav a:hover {
            color: var(--amber);
        }
        .breadcrumb-nav .separator {
            color: var(--text-dark-placeholder);
        }
        .breadcrumb-nav .current {
            color: var(--text);
            font-weight: 600;
        }
        /* Article Header */
        .article-header {
            padding: 48px 0 32px;
            background: var(--card);
            border-bottom: 1px solid var(--border);
        }
        .article-header .article-meta-top {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }
        .article-meta-top .badge-category {
            background: var(--amber);
            color: var(--charcoal);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-tag);
            letter-spacing: 0.3px;
        }
        .article-meta-top .meta-item {
            font-size: 13px;
            color: var(--text-sub);
        }
        .article-header h1 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 16px;
            color: var(--text);
        }
        .article-header .article-summary {
            font-size: 16px;
            color: var(--text-sub);
            line-height: 1.7;
            max-width: 820px;
        }
        /* Article Body */
        .article-body-section {
            padding: 40px 0;
        }
        .article-body-layout {
            display: grid;
            grid-template-columns: minmax(0, 780px) 320px;
            gap: 40px;
            align-items: start;
        }
        .article-content {
            background: var(--card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 36px 40px;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            overflow-wrap: break-word;
        }
        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 28px 0 14px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--border);
            color: var(--text);
        }
        .article-content h3 {
            font-size: 19px;
            font-weight: 700;
            margin: 22px 0 10px;
            color: var(--text);
        }
        .article-content p {
            margin-bottom: 16px;
            color: var(--text);
        }
        .article-content ul, .article-content ol {
            margin: 0 0 16px 20px;
            padding-left: 16px;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content blockquote {
            background: var(--bg-alt);
            border-left: 4px solid var(--amber);
            padding: 16px 20px;
            margin: 20px 0;
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
            color: var(--text-sub);
        }
        .article-content img {
            border-radius: var(--radius-card);
            margin: 20px 0;
        }
        .article-content .article-image-placeholder {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            min-height: 220px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-sub);
            font-size: 14px;
            margin: 20px 0;
            text-align: center;
            padding: 20px;
        }
        .article-content .step-box {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px;
            margin: 18px 0;
        }
        .article-content .step-box .step-num {
            display: inline-block;
            background: var(--amber);
            color: var(--charcoal);
            font-weight: 700;
            font-size: 12px;
            width: 24px;
            height: 24px;
            line-height: 24px;
            text-align: center;
            border-radius: 50%;
            margin-right: 8px;
        }
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 88px;
        }
        .sidebar-card {
            background: var(--card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 22px;
            border: 1px solid var(--border);
        }
        .sidebar-card h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text);
            border-left: 3px solid var(--amber);
            padding-left: 10px;
        }
        /* Keyword Tips */
        .article-keywords-box {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            margin-top: 28px;
        }
        .article-keywords-box h3 {
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }
        .article-keywords-box .keyword-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-keywords-box .keyword-tag {
            background: var(--card);
            border: 1px solid var(--border);
            color: var(--text-sub);
            font-size: 12px;
            padding: 5px 14px;
            border-radius: var(--radius-tag);
            transition: var(--transition);
        }
        .article-keywords-box .keyword-tag:hover {
            border-color: var(--amber);
            color: var(--amber);
        }
        /* Compliance Notice */
        .compliance-notice {
            background: var(--card);
            border: 1px solid var(--amber);
            border-left: 4px solid var(--amber);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            margin-top: 24px;
        }
        .compliance-notice h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .compliance-notice p {
            font-size: 14px;
            color: var(--text-sub);
            margin: 0;
            line-height: 1.7;
        }
        /* Related Articles */
        .related-articles {
            padding: 48px 0 56px;
            background: var(--bg-alt);
        }
        .related-articles h2 {
            font-size: 26px;
            font-weight: 800;
            margin-bottom: 24px;
            color: var(--text);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .related-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }
        .related-card .related-body {
            padding: 18px 20px;
        }
        .related-card .related-date {
            font-size: 12px;
            color: var(--text-sub);
            margin-bottom: 6px;
        }
        .related-card h3 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .related-card p {
            font-size: 13px;
            color: var(--text-sub);
            margin: 0;
            line-height: 1.6;
        }
        /* Return Buttons */
        .return-section {
            padding: 32px 0 48px;
        }
        .return-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }
        .btn {
            display: inline-block;
            padding: 11px 26px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
            border: 1px solid transparent;
            letter-spacing: 0.3px;
        }
        .btn:focus {
            outline: 2px solid var(--amber);
            outline-offset: 2px;
        }
        .btn:active {
            transform: translateY(1px);
        }
        .btn-primary {
            background: var(--amber);
            color: var(--charcoal);
        }
        .btn-primary:hover {
            background: var(--amber-hover);
            color: var(--charcoal);
        }
        .btn-outline {
            background: transparent;
            border-color: var(--border);
            color: var(--text);
        }
        .btn-outline:hover {
            border-color: var(--amber);
            color: var(--amber);
        }
        /* Subscribe CTA */
        .subscribe-cta {
            background: var(--charcoal);
            border-radius: var(--radius-card);
            padding: 40px;
            margin: 0 0 48px;
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 30px;
            align-items: center;
        }
        .subscribe-cta h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 8px;
        }
        .subscribe-cta p {
            font-size: 14px;
            color: #C9C4BB;
            margin: 0;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
        }
        .subscribe-form input {
            padding: 11px 18px;
            border: 1px solid var(--charcoal-border);
            border-radius: var(--radius-input);
            background: rgba(255,255,255,0.06);
            color: var(--text-light);
            font-size: 14px;
            min-width: 240px;
            transition: var(--transition);
        }
        .subscribe-form input::placeholder {
            color: #A39D91;
        }
        .subscribe-form input:focus {
            outline: none;
            border-color: var(--amber);
        }
        .subscribe-form .btn-primary {
            white-space: nowrap;
        }
        /* Copyright Notice */
        .copyright-notice {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            margin-bottom: 48px;
        }
        .copyright-notice p {
            font-size: 14px;
            color: var(--text-sub);
            margin: 0;
            line-height: 1.7;
        }
        /* Footer */
        .site-footer {
            background: var(--charcoal);
            color: var(--text-light);
            padding: 56px 0 24px;
            border-top: 1px solid var(--charcoal-border);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-about h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-light);
        }
        .footer-about p {
            font-size: 13px;
            color: #C9C4BB;
            line-height: 1.7;
            margin: 0;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--amber);
            margin-bottom: 14px;
        }
        .footer-col a {
            display: block;
            font-size: 13px;
            color: #C9C4BB;
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--amber);
        }
        .footer-bottom {
            border-top: 1px solid var(--charcoal-border);
            padding-top: 18px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom p {
            font-size: 12px;
            color: #8C867C;
            margin: 0;
        }
        .back-to-top {
            background: none;
            border: 1px solid var(--charcoal-border);
            color: #C9C4BB;
            font-size: 12px;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            transition: var(--transition);
        }
        .back-to-top:hover {
            border-color: var(--amber);
            color: var(--amber);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .article-body-layout {
                grid-template-columns: 1fr;
            }
            .article-sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }
            .sidebar-card {
                flex: 1 1 280px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .subscribe-cta {
                grid-template-columns: 1fr;
                padding: 30px;
            }
            .subscribe-form {
                flex-wrap: wrap;
            }
            .subscribe-form input {
                min-width: 100%;
            }
        }
        @media (max-width: 768px) {
            :root { --section-pad: 40px; }
            .site-header .container { height: 60px; }
            .logo { font-size: 14px; }
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--charcoal);
                flex-direction: column;
                padding: 20px;
                gap: 0;
                border-bottom: 1px solid var(--charcoal-border);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 0;
                font-size: 15px;
                border-bottom: 1px solid var(--charcoal-border);
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .article-header h1 { font-size: 26px; }
            .article-content {
                padding: 24px 20px;
                font-size: 15px;
            }
            .article-header { padding: 32px 0 24px; }
            .article-body-section { padding: 24px 0; }
            .related-grid { grid-template-columns: 1fr; }
            .related-section h2 { font-size: 22px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
            .footer-about { grid-column: 1 / -1; }
            .return-buttons .btn { width: 100%; text-align: center; }
            .subscribe-cta { padding: 24px; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-header h1 { font-size: 22px; }
            .article-content { padding: 20px 16px; }
            .footer-grid { grid-template-columns: 1fr; }
            .article-sidebar { flex-direction: column; }
            .breadcrumb-bar .breadcrumb-nav { font-size: 12px; }
        }

/* roulang page: category1 */
:root {
            --bg: #F5F2ED;
            --bg-alt: #EAE5DC;
            --card: #FFFFFF;
            --charcoal: #141414;
            --charcoal-border: #2B2B2B;
            --amber: #E8A33D;
            --amber-hover: #F2B84F;
            --text: #1A1A1A;
            --text-sub: #5F5A52;
            --text-light: #F5F0E6;
            --text-dark-placeholder: #A39D91;
            --border: #D9D2C5;
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --radius-tag: 999px;
            --shadow-sm: 0 8px 24px rgba(0,0,0,0.06);
            --shadow-hover: 0 16px 36px rgba(0,0,0,0.12);
            --shadow-dark-hover: 0 0 0 1px #E8A33D;
            --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            --section-pad: 64px;
            --container: 1200px;
            --transition: all .2s ease;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width: 100%; display: block; }
        a { text-decoration: none; color: inherit; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 20px;
        }
        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--charcoal);
            border-bottom: 1px solid var(--charcoal-border);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .logo {
            font-weight: 800;
            font-size: 16px;
            color: var(--text-light);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo .logo-accent { color: var(--amber); }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            color: #C9C4BB;
            font-size: 14px;
            font-weight: 500;
            padding: 6px 0;
            position: relative;
            transition: var(--transition);
            white-space: nowrap;
        }
        .main-nav a:hover { color: var(--text-light); }
        .main-nav a.active {
            color: var(--amber);
            font-weight: 700;
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background: var(--amber);
            border-radius: 2px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            width: 40px;
            height: 40px;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-light);
            border-radius: 2px;
            transition: var(--transition);
        }
        /* Category Hero Header (not full-screen) */
        .page-head {
            background: var(--bg-alt);
            border-bottom: 1px solid var(--border);
            padding: 40px 0 36px;
        }
        .breadcrumb {
            font-size: 13px;
            color: var(--text-sub);
            margin-bottom: 14px;
        }
        .breadcrumb a {
            color: var(--text-sub);
            transition: var(--transition);
        }
        .breadcrumb a:hover { color: var(--amber); }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 500;
        }
        .page-head h1 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.35;
            color: var(--charcoal);
            margin-bottom: 10px;
            border-left: 5px solid var(--amber);
            padding-left: 18px;
        }
        .page-head .subtitle {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 720px;
            margin-left: 23px;
        }
        /* Section base */
        .section {
            padding: var(--section-pad) 0;
        }
        .section-sm { padding: 40px 0; }
        .section-alt { background: var(--bg-alt); }
        .section-dark { background: var(--charcoal); color: var(--text-light); }
        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 24px;
            position: relative;
            padding-left: 14px;
        }
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 22px;
            background: var(--amber);
            border-radius: 4px;
        }
        .section-desc {
            color: var(--text-sub);
            max-width: 700px;
            margin-bottom: 28px;
            font-size: 15px;
        }
        /* Stats */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 22px 24px;
            text-align: center;
            transition: var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--amber);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-sub);
            margin-top: 6px;
        }
        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .step-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--amber);
        }
        .step-index {
            font-size: 13px;
            font-weight: 700;
            color: var(--amber);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }
        .step-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
        }
        /* Article list cards */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .article-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 16px;
            display: flex;
            gap: 18px;
            align-items: flex-start;
            transition: var(--transition);
        }
        .article-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--amber);
        }
        .article-thumb {
            width: 120px;
            height: 80px;
            border-radius: 10px;
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-alt);
        }
        .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .article-info {
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-info h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
            line-height: 1.4;
        }
        .article-info h3 a {
            transition: var(--transition);
        }
        .article-info h3 a:hover { color: var(--amber); }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
            font-size: 13px;
            color: var(--text-sub);
            margin-top: auto;
        }
        .badge-tag {
            background: var(--bg-alt);
            color: var(--text-sub);
            padding: 3px 10px;
            border-radius: var(--radius-tag);
            font-size: 12px;
            white-space: nowrap;
        }
        .badge-tag.hot {
            border: 1px solid var(--amber);
            color: var(--amber);
            background: transparent;
        }
        .empty-state {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 36px;
            text-align: center;
            color: var(--text-sub);
            font-size: 15px;
        }
        /* Featured cards */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .featured-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .featured-img {
            height: 140px;
            overflow: hidden;
            background: var(--bg-alt);
        }
        .featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .featured-body {
            padding: 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .featured-body h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
            line-height: 1.4;
        }
        .featured-body p {
            font-size: 13px;
            color: var(--text-sub);
            flex: 1;
        }
        .featured-body .article-meta {
            margin-top: 12px;
            font-size: 12px;
            color: var(--text-sub);
        }
        /* Related topics */
        .topic-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 16px;
        }
        .topic-link {
            background: var(--card);
            border: 1px solid var(--border);
            padding: 10px 18px;
            border-radius: var(--radius-btn);
            color: var(--text);
            font-weight: 500;
            transition: var(--transition);
        }
        .topic-link:hover {
            border-color: var(--amber);
            color: var(--amber);
            box-shadow: var(--shadow-sm);
        }
        /* CTA */
        .cta-banner {
            background: var(--charcoal);
            border-radius: var(--radius-card);
            padding: 30px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            color: var(--text-light);
        }
        .cta-banner h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-light);
        }
        .cta-banner p {
            color: #C9C4BB;
            font-size: 14px;
            margin: 0;
        }
        .btn {
            display: inline-block;
            border: none;
            border-radius: var(--radius-btn);
            padding: 11px 24px;
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition);
            text-align: center;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--amber);
            color: var(--charcoal);
        }
        .btn-primary:hover {
            background: var(--amber-hover);
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }
        .btn-outline {
            background: transparent;
            color: var(--text);
            border: 1px solid var(--border);
        }
        .btn-outline:hover {
            border-color: var(--amber);
            color: var(--amber);
        }
        .btn-dark {
            background: transparent;
            color: var(--text-light);
            border: 1px solid #5F5A52;
        }
        .btn-dark:hover {
            border-color: var(--amber);
            color: var(--amber);
        }
        /* FAQ */
        .faq-list {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
        }
        .faq-item:last-child { border-bottom: none; }
        .faq-question {
            padding: 16px 20px;
            font-weight: 700;
            color: var(--text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }
        .faq-question:hover { color: var(--amber); }
        .faq-question .icon {
            font-size: 20px;
            transition: var(--transition);
        }
        .faq-answer {
            padding: 0 20px 18px;
            color: var(--text-sub);
            font-size: 14px;
            display: none;
            border-left: 3px solid var(--amber);
            margin-left: 20px;
            padding-left: 20px;
        }
        .faq-item.open .faq-answer { display: block; }
        .faq-item.open .faq-question .icon { transform: rotate(45deg); }
        /* Safety note */
        .safety-note {
            background: #FFF9F0;
            border-left: 5px solid var(--amber);
            border-radius: 10px;
            padding: 20px 24px;
            color: var(--text);
            font-size: 14px;
        }
        .safety-note strong {
            color: var(--amber);
        }
        /* Footer */
        .site-footer {
            background: var(--charcoal);
            color: var(--text-light);
            padding: 48px 0 20px;
            margin-top: 40px;
            border-top: 1px solid var(--charcoal-border);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-about h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-light);
        }
        .footer-about p {
            color: #C9C4BB;
            font-size: 13px;
            line-height: 1.7;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-light);
        }
        .footer-col a {
            display: block;
            color: #C9C4BB;
            font-size: 13px;
            margin-bottom: 10px;
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--amber); }
        .footer-bottom {
            border-top: 1px solid var(--charcoal-border);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            color: #C9C4BB;
            font-size: 12px;
        }
        .back-to-top {
            background: var(--charcoal);
            border: 1px solid var(--charcoal-border);
            color: #C9C4BB;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            transition: var(--transition);
            font-size: 12px;
        }
        .back-to-top:hover {
            border-color: var(--amber);
            color: var(--amber);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .hero .container { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: repeat(2, 1fr); }
            .featured-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .nav-toggle { display: flex; }
            .main-nav {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                background: var(--charcoal);
                flex-direction: column;
                padding: 20px;
                gap: 16px;
                display: none;
                border-bottom: 1px solid var(--charcoal-border);
                z-index: 99;
            }
            .main-nav.open { display: flex; }
            .main-nav a { width: 100%; text-align: center; }
            :root { --section-pad: 40px; }
            .section { padding: 40px 0; }
            .page-head { padding: 28px 0; }
            .page-head h1 { font-size: 26px; }
            .stats-grid { grid-template-columns: 1fr; }
            .steps-grid { grid-template-columns: 1fr; }
            .featured-grid { grid-template-columns: 1fr; }
            .article-item { flex-direction: column; }
            .article-thumb { width: 100%; height: auto; aspect-ratio: 16/9; }
            .cta-banner { flex-direction: column; align-items: flex-start; }
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; align-items: flex-start; }
        }
        @media (max-width: 480px) {
            body { font-size: 14px; }
            .container { padding: 0 16px; }
            .logo { font-size: 14px; }
            .page-head h1 { font-size: 22px; }
            .section-title { font-size: 22px; }
            .btn { width: 100%; }
            .topic-link { width: 100%; text-align: center; }
        }

/* roulang page: category3 */
:root {
            --bg: #F5F2ED;
            --bg-alt: #EAE5DC;
            --card: #FFFFFF;
            --charcoal: #141414;
            --charcoal-border: #2B2B2B;
            --amber: #E8A33D;
            --amber-hover: #F2B84F;
            --text: #1A1A1A;
            --text-sub: #5F5A52;
            --text-light: #F5F0E6;
            --text-dark-placeholder: #A39D91;
            --border: #D9D2C5;
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --radius-tag: 999px;
            --shadow-sm: 0 8px 24px rgba(0,0,0,0.06);
            --shadow-hover: 0 16px 36px rgba(0,0,0,0.12);
            --shadow-dark-hover: 0 0 0 1px #E8A33D;
            --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            --section-pad: 64px;
            --container: 1200px;
            --transition: all .2s ease;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width: 100%; display: block; }
        a { text-decoration: none; color: inherit; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 20px;
        }
        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--charcoal);
            border-bottom: 1px solid var(--charcoal-border);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .logo {
            font-weight: 800;
            font-size: 16px;
            color: var(--text-light);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo .logo-accent {
            color: var(--amber);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            color: #C9C4BB;
            font-size: 14px;
            font-weight: 500;
            padding: 6px 0;
            position: relative;
            transition: var(--transition);
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--text-light);
        }
        .main-nav a.active {
            color: var(--amber);
            font-weight: 700;
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background: var(--amber);
            border-radius: 2px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            width: 40px;
            height: 40px;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-light);
            border-radius: 2px;
            transition: var(--transition);
        }
        /* Section Common */
        section {
            padding: var(--section-pad) 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-dark {
            background: var(--charcoal);
            color: var(--text-light);
        }
        .section-title {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--text);
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-sub);
            margin-bottom: 32px;
            max-width: 720px;
        }
        /* Buttons */
        .btn-primary {
            background: var(--amber);
            color: var(--charcoal);
            border: none;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary:hover, .btn-primary:focus {
            background: var(--amber-hover);
            color: var(--charcoal);
            outline: 2px solid var(--amber);
            outline-offset: 2px;
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text);
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            font-weight: 500;
            transition: var(--transition);
        }
        .btn-outline:hover, .btn-outline:focus {
            border-color: var(--amber);
            color: var(--amber);
            outline: 2px solid var(--amber);
            outline-offset: 2px;
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }
        /* Cards & Badges */
        .card {
            background: var(--card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .badge {
            display: inline-block;
            background: var(--bg-alt);
            color: var(--text-sub);
            font-size: 12px;
            padding: 4px 12px;
            border-radius: var(--radius-tag);
            margin-right: 8px;
            margin-bottom: 8px;
            white-space: nowrap;
        }
        .badge-amber {
            background: rgba(232,163,61,0.12);
            color: #b87520;
            border: 1px solid rgba(232,163,61,0.5);
        }
        /* Forms */
        .form-control {
            border-radius: var(--radius-input);
            border: 1px solid var(--border);
            padding: 10px 16px;
            font-size: 14px;
        }
        .form-control:focus {
            border-color: var(--amber);
            box-shadow: 0 0 0 2px rgba(232,163,61,0.2);
        }
        /* FAQ */
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 16px;
            overflow: hidden;
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text);
            background: var(--card);
            transition: var(--transition);
        }
        .faq-question:hover {
            background: var(--bg-alt);
        }
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-sub);
            border-left: 3px solid var(--amber);
            background: var(--bg);
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }
        .faq-item.active .faq-question {
            background: var(--bg-alt);
        }
        /* Footer */
        .site-footer {
            background: var(--charcoal);
            color: #C9C4BB;
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-about h3 {
            color: var(--text-light);
            font-size: 18px;
            margin-bottom: 16px;
        }
        .footer-about p {
            color: #A39D91;
            font-size: 14px;
            line-height: 1.7;
        }
        .footer-col h4 {
            color: var(--text-light);
            font-size: 15px;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: #C9C4BB;
            font-size: 14px;
            margin-bottom: 10px;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--amber);
        }
        .footer-bottom {
            border-top: 1px solid var(--charcoal-border);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: #A39D91;
        }
        .back-to-top {
            background: none;
            border: 1px solid var(--charcoal-border);
            color: #C9C4BB;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            font-size: 13px;
            transition: var(--transition);
        }
        .back-to-top:hover {
            border-color: var(--amber);
            color: var(--amber);
        }
        /* Category Specific */
        .category-header {
            background: var(--bg-alt);
            padding: 48px 0 40px;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            margin-bottom: 16px;
            font-size: 13px;
            color: var(--text-sub);
        }
        .breadcrumb a {
            color: var(--text-sub);
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--amber);
        }
        .breadcrumb span {
            margin: 0 8px;
        }
        .category-header h1 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 10px;
            line-height: 1.3;
        }
        .category-header .lead {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 760px;
        }
        .category-stats {
            padding: 32px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .stats-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .stat-item {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            text-align: center;
        }
        .stat-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--amber);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 13px;
            color: var(--text-sub);
            margin-top: 4px;
        }
        .stats-image img {
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .post-list-section .post-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .post-card {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .post-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .post-card .post-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 12px;
        }
        .post-card .post-time {
            font-size: 12px;
            color: var(--text-sub);
        }
        .post-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .post-card h3 a {
            color: var(--text);
            transition: var(--transition);
        }
        .post-card h3 a:hover {
            color: var(--amber);
        }
        .post-card .post-excerpt {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
            flex: 1;
        }
        .post-card .post-tags {
            margin-top: 14px;
        }
        .view-all-wrap {
            margin-top: 32px;
            text-align: center;
        }
        .featured-section {
            background: var(--bg-alt);
        }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .featured-card {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .featured-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .featured-card .post-time {
            font-size: 12px;
            color: var(--text-sub);
            margin-bottom: 8px;
            display: block;
        }
        .featured-card h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .featured-card h4 a {
            color: var(--text);
            transition: var(--transition);
        }
        .featured-card h4 a:hover {
            color: var(--amber);
        }
        .featured-card .post-excerpt {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
        }
        .related-topics {
            padding: 48px 0;
        }
        .topic-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 20px;
        }
        .topic-link {
            display: inline-block;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 14px;
            color: var(--text);
            transition: var(--transition);
        }
        .topic-link:hover {
            border-color: var(--amber);
            color: var(--amber);
            background: rgba(232,163,61,0.05);
        }
        .subscribe-cta {
            background: var(--charcoal);
            color: var(--text-light);
            padding: 40px 0;
        }
        .subscribe-cta .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .subscribe-cta h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .subscribe-cta p {
            color: #C9C4BB;
            font-size: 14px;
            margin: 0;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .subscribe-form input {
            padding: 10px 16px;
            border-radius: var(--radius-input);
            border: 1px solid var(--charcoal-border);
            background: #2B2B2B;
            color: var(--text-light);
            min-width: 240px;
        }
        .subscribe-form input::placeholder {
            color: var(--text-dark-placeholder);
        }
        .faq-summary {
            background: var(--bg);
        }
        .copyright-tip {
            padding: 24px 0;
            background: var(--bg-alt);
        }
        .tip-box {
            background: #FFF7EB;
            border-left: 4px solid var(--amber);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            color: var(--text-sub);
            font-size: 14px;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .stats-grid { grid-template-columns: 1fr; }
            .stats-cards { grid-template-columns: repeat(3, 1fr); }
            .featured-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .nav-toggle { display: flex; }
            .main-nav {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                background: var(--charcoal);
                flex-direction: column;
                align-items: flex-start;
                padding: 20px;
                gap: 16px;
                display: none;
                border-bottom: 1px solid var(--charcoal-border);
            }
            .main-nav.open { display: flex; }
            .main-nav a { font-size: 16px; }
            .post-list-section .post-grid { grid-template-columns: 1fr; }
            .featured-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .subscribe-cta .container { flex-direction: column; align-items: flex-start; }
            .subscribe-form input { min-width: 100%; }
            .category-header h1 { font-size: 26px; }
        }
        @media (max-width: 520px) {
            .stats-cards { grid-template-columns: 1fr; }
            .btn-primary, .btn-outline { width: 100%; text-align: center; }
            .topic-links { flex-direction: column; }
            .topic-link { text-align: center; }
            .section-title { font-size: 24px; }
            .category-header h1 { font-size: 22px; }
        }

/* roulang page: category2 */
:root {
            --bg: #F5F2ED;
            --bg-alt: #EAE5DC;
            --card: #FFFFFF;
            --charcoal: #141414;
            --charcoal-border: #2B2B2B;
            --amber: #E8A33D;
            --amber-hover: #F2B84F;
            --text: #1A1A1A;
            --text-sub: #5F5A52;
            --text-light: #F5F0E6;
            --text-dark-placeholder: #A39D91;
            --border: #D9D2C5;
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --radius-tag: 999px;
            --shadow-sm: 0 8px 24px rgba(0,0,0,0.06);
            --shadow-hover: 0 16px 36px rgba(0,0,0,0.12);
            --shadow-dark-hover: 0 0 0 1px #E8A33D;
            --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            --section-pad: 64px;
            --container: 1200px;
            --transition: all .2s ease;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width: 100%; display: block; }
        a { text-decoration: none; color: inherit; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 20px;
        }
        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--charcoal);
            border-bottom: 1px solid var(--charcoal-border);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .logo {
            font-weight: 800;
            font-size: 16px;
            color: var(--text-light);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo .logo-accent {
            color: var(--amber);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            color: #C9C4BB;
            font-size: 14px;
            font-weight: 500;
            padding: 6px 0;
            position: relative;
            transition: var(--transition);
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--text-light);
        }
        .main-nav a.active {
            color: var(--amber);
            font-weight: 700;
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background: var(--amber);
            border-radius: 2px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            width: 40px;
            height: 40px;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-light);
            border-radius: 2px;
            transition: var(--transition);
        }
        /* Category Header */
        .category-header {
            background: var(--bg-alt);
            border-bottom: 1px solid var(--border);
            padding: 40px 0 32px;
            position: relative;
        }
        .category-header::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--amber);
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-sub);
            margin-bottom: 14px;
        }
        .breadcrumb-nav a {
            color: var(--text-sub);
            transition: var(--transition);
        }
        .breadcrumb-nav a:hover {
            color: var(--amber);
        }
        .breadcrumb-nav .separator {
            color: var(--border);
        }
        .breadcrumb-nav .current {
            color: var(--text);
            font-weight: 600;
        }
        .category-header h1 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 10px;
            color: var(--text);
        }
        .category-header .category-subtitle {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 680px;
            line-height: 1.7;
        }
        /* Section base */
        .section {
            padding: var(--section-pad) 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-dark {
            background: var(--charcoal);
            color: var(--text-light);
        }
        .section-title {
            font-size: 26px;
            font-weight: 800;
            margin-bottom: 8px;
            color: var(--text);
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--text-sub);
            margin-bottom: 28px;
        }
        .section-dark .section-title,
        .section-dark .section-subtitle {
            color: var(--text-light);
        }
        .section-dark .section-subtitle {
            color: #C9C4BB;
        }
        /* Stats Cards */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .stat-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--amber);
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--amber);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 13px;
            color: var(--text-sub);
            font-weight: 500;
        }
        /* List Cards */
        .content-list-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 22px;
        }
        .list-card {
            background: var(--card);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            border: 1px solid transparent;
        }
        .list-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--amber);
        }
        .list-card .card-img {
            height: 180px;
            overflow: hidden;
            background: var(--bg-alt);
            position: relative;
        }
        .list-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .list-card .card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .list-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 10px;
        }
        .list-card .card-tags .tag {
            background: var(--bg-alt);
            color: var(--text-sub);
            font-size: 11px;
            padding: 3px 12px;
            border-radius: var(--radius-tag);
            font-weight: 500;
            transition: var(--transition);
        }
        .list-card .card-tags .tag:hover {
            background: var(--amber);
            color: var(--charcoal);
        }
        .list-card .card-title {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 8px;
        }
        .list-card .card-title a {
            color: var(--text);
            transition: var(--transition);
        }
        .list-card .card-title a:hover {
            color: var(--amber);
        }
        .list-card .card-summary {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 12px;
        }
        .list-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-sub);
            border-top: 1px solid var(--border);
            padding-top: 12px;
        }
        .list-card .card-meta .meta-time {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .empty-state {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 40px;
            text-align: center;
            color: var(--text-sub);
            font-size: 14px;
            border: 1px dashed var(--border);
        }
        .view-more-btn {
            display: inline-block;
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text);
            font-size: 14px;
            font-weight: 600;
            padding: 10px 28px;
            border-radius: var(--radius-btn);
            transition: var(--transition);
            margin-top: 24px;
        }
        .view-more-btn:hover {
            border-color: var(--amber);
            color: var(--amber);
            box-shadow: var(--shadow-sm);
        }
        .view-more-btn:focus {
            outline: 2px solid var(--amber);
            outline-offset: 2px;
        }
        .view-more-btn:active {
            transform: translateY(1px);
        }
        .center-btn-wrap {
            text-align: center;
        }
        /* Tool Tips Card */
        .tool-tips-card {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            border-left: 4px solid var(--amber);
        }
        .tool-tips-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .tool-steps {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-top: 16px;
        }
        .tool-step {
            background: var(--bg);
            border-radius: 10px;
            padding: 16px;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .tool-step:hover {
            border-color: var(--amber);
            background: var(--card);
        }
        .tool-step .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            background: var(--amber);
            color: var(--charcoal);
            font-weight: 700;
            font-size: 13px;
            border-radius: 50%;
            margin-bottom: 8px;
        }
        .tool-step h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .tool-step p {
            font-size: 13px;
            color: var(--text-sub);
            margin: 0;
            line-height: 1.6;
        }
        /* Hot Articles */
        .hot-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .hot-card {
            background: var(--card);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .hot-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--amber);
        }
        .hot-card .hot-img {
            height: 160px;
            overflow: hidden;
            background: var(--bg-alt);
        }
        .hot-card .hot-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .hot-card .hot-body {
            padding: 16px 18px 18px;
        }
        .hot-card .hot-title {
            font-size: 15px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 6px;
        }
        .hot-card .hot-title a {
            color: var(--text);
            transition: var(--transition);
        }
        .hot-card .hot-title a:hover {
            color: var(--amber);
        }
        .hot-card .hot-meta {
            font-size: 12px;
            color: var(--text-sub);
        }
        /* Related Topics */
        .related-topics-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .topic-link {
            display: inline-block;
            background: var(--card);
            border: 1px solid var(--border);
            color: var(--text);
            font-size: 13px;
            font-weight: 600;
            padding: 8px 20px;
            border-radius: var(--radius-tag);
            transition: var(--transition);
        }
        .topic-link:hover {
            border-color: var(--amber);
            color: var(--amber);
            background: var(--bg);
            box-shadow: var(--shadow-sm);
        }
        .topic-link:focus {
            outline: 2px solid var(--amber);
            outline-offset: 2px;
        }
        /* Subscribe CTA */
        .subscribe-cta {
            background: var(--charcoal);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .subscribe-cta .cta-text h3 {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 6px;
        }
        .subscribe-cta .cta-text p {
            font-size: 13px;
            color: #C9C4BB;
            margin: 0;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            flex: 1;
            max-width: 420px;
            min-width: 260px;
        }
        .subscribe-form input {
            flex: 1;
            padding: 11px 16px;
            border: 1px solid var(--charcoal-border);
            border-radius: var(--radius-input);
            background: #1E1E1E;
            color: var(--text-light);
            font-size: 14px;
            transition: var(--transition);
        }
        .subscribe-form input::placeholder {
            color: var(--text-dark-placeholder);
        }
        .subscribe-form input:focus {
            outline: none;
            border-color: var(--amber);
            box-shadow: 0 0 0 2px rgba(232,163,61,0.2);
        }
        .btn-primary {
            background: var(--amber);
            color: var(--charcoal);
            font-weight: 700;
            font-size: 14px;
            padding: 11px 22px;
            border: none;
            border-radius: var(--radius-btn);
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--amber-hover);
            box-shadow: var(--shadow-sm);
        }
        .btn-primary:focus {
            outline: 2px solid var(--amber);
            outline-offset: 2px;
        }
        .btn-primary:active {
            transform: translateY(1px);
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text);
            font-weight: 600;
            font-size: 14px;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-outline:hover {
            border-color: var(--amber);
            color: var(--amber);
            box-shadow: var(--shadow-sm);
        }
        .btn-outline:focus {
            outline: 2px solid var(--amber);
            outline-offset: 2px;
        }
        .btn-outline:active {
            transform: translateY(1px);
        }
        /* FAQ compact */
        .faq-compact-item {
            background: var(--card);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            margin-bottom: 12px;
            transition: var(--transition);
            border-left: 3px solid transparent;
        }
        .faq-compact-item:hover {
            border-left-color: var(--amber);
            box-shadow: var(--shadow-hover);
        }
        .faq-compact-item h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }
        .faq-compact-item p {
            font-size: 13px;
            color: var(--text-sub);
            margin: 0;
            line-height: 1.6;
        }
        /* Compliance strip */
        .compliance-strip {
            background: var(--bg-alt);
            border-left: 4px solid var(--amber);
            border-radius: 8px;
            padding: 16px 20px;
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.7;
        }
        .compliance-strip strong {
            color: var(--text);
        }
        /* Footer */
        .site-footer {
            background: var(--charcoal);
            color: var(--text-light);
            padding: 56px 0 24px;
            border-top: 1px solid var(--charcoal-border);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }
        .footer-about h3 {
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--text-light);
        }
        .footer-about p {
            font-size: 13px;
            color: #C9C4BB;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 14px;
        }
        .footer-col a {
            display: block;
            font-size: 13px;
            color: #C9C4BB;
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--amber);
        }
        .footer-bottom {
            border-top: 1px solid var(--charcoal-border);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom p {
            font-size: 12px;
            color: #C9C4BB;
            margin: 0;
        }
        .back-to-top {
            background: none;
            border: 1px solid var(--charcoal-border);
            color: #C9C4BB;
            font-size: 12px;
            font-weight: 600;
            padding: 7px 16px;
            border-radius: var(--radius-btn);
            transition: var(--transition);
        }
        .back-to-top:hover {
            border-color: var(--amber);
            color: var(--amber);
            background: rgba(232,163,61,0.08);
        }
        .back-to-top:focus {
            outline: 2px solid var(--amber);
            outline-offset: 2px;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .content-list-grid {
                grid-template-columns: 1fr;
            }
            .hot-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-row {
                grid-template-columns: repeat(3, 1fr);
                gap: 14px;
            }
            .tool-steps {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                background: var(--charcoal);
                flex-direction: column;
                align-items: flex-start;
                padding: 20px;
                gap: 14px;
                border-bottom: 1px solid var(--charcoal-border);
                display: none;
                z-index: 99;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                font-size: 15px;
                width: 100%;
                padding: 10px 0;
                border-bottom: 1px solid var(--charcoal-border);
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .main-nav a.active::after {
                display: none;
            }
            .main-nav a.active {
                background: rgba(232,163,61,0.1);
                padding-left: 12px;
                border-radius: 6px;
            }
            .category-header {
                padding: 28px 0 24px;
            }
            .category-header h1 {
                font-size: 24px;
            }
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 22px;
            }
            .stats-row {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .hot-cards-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .subscribe-cta {
                flex-direction: column;
                padding: 22px 20px;
                align-items: flex-start;
            }
            .subscribe-form {
                width: 100%;
                max-width: 100%;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-header h1 {
                font-size: 20px;
            }
            .category-header .category-subtitle {
                font-size: 14px;
            }
            .section {
                padding: 32px 0;
            }
            .section-title {
                font-size: 20px;
            }
            .list-card .card-img {
                height: 140px;
            }
            .hot-card .hot-img {
                height: 130px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form input,
            .subscribe-form .btn-primary {
                width: 100%;
            }
            .btn-primary,
            .btn-outline {
                width: 100%;
                text-align: center;
            }
        }