/* roulang page: index */
:root {
            --bg-base: #17181C;
            --bg-elevated: #1F2127;
            --bg-subtle: #26282F;
            --text-primary: #F2EFE6;
            --text-secondary: #B7B2A5;
            --text-muted: #7E7A6D;
            --accent-gold: #D4A853;
            --accent-gold-hover: #E2BB6B;
            --accent-cyan: #50A8A6;
            --accent-cyan-soft: rgba(80, 168, 166, 0.14);
            --accent-gold-soft: rgba(212, 168, 83, 0.14);
            --border-color: #3A3D45;
            --danger: #C65B4E;
            --danger-soft: rgba(198, 91, 78, 0.08);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 8px 28px rgba(0, 0, 0, 0.35);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-serif: "Noto Serif SC", "Source Han Serif SC", serif;
            --font-mono: "DIN Alternate", "SF Mono", "Consolas", monospace;
            --section-padding-desktop: 96px;
            --section-padding-tablet: 72px;
            --section-padding-mobile: 48px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-primary);
            background-color: var(--bg-base);
            overflow-x: hidden;
        }

        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover {
            color: var(--accent-gold-hover);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1140px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .container-wide {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .container-narrow {
            max-width: 780px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        section {
            padding: var(--section-padding-desktop) 0;
            position: relative;
        }

        @media (max-width: 991px) {
            section {
                padding: var(--section-padding-tablet) 0;
            }
        }

        @media (max-width: 575px) {
            section {
                padding: var(--section-padding-mobile) 0;
            }
            body {
                font-size: 15px;
                line-height: 1.8;
            }
        }

        .section-label {
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-gold);
            margin-bottom: 12px;
            display: inline-block;
        }

        .section-title {
            font-family: var(--font-serif);
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 32px;
        }

        @media (max-width: 575px) {
            .section-title {
                font-size: 24px;
            }
            .section-desc {
                font-size: 15px;
            }
        }

        .text-gold {
            color: var(--accent-gold);
        }

        .text-cyan {
            color: var(--accent-cyan);
        }

        .mono-num {
            font-family: var(--font-mono);
            font-size: 1.2em;
            letter-spacing: 0.03em;
        }

        /* ============ HEADER NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(23, 24, 28, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            padding: 12px 0;
            transition: box-shadow 0.2s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
        }

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

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.03em;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .logo-text .logo-highlight {
            color: var(--accent-gold);
        }

        .logo-sub {
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--accent-gold);
            white-space: nowrap;
        }

        .nav-chips {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .nav-chip {
            display: inline-block;
            padding: 7px 16px;
            font-size: 14px;
            font-weight: 500;
            line-height: 1.4;
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .nav-chip:hover {
            color: var(--accent-gold);
            border-color: rgba(212, 168, 83, 0.5);
            background: var(--accent-gold-soft);
        }

        .nav-chip.active {
            color: var(--bg-base);
            background: var(--accent-gold);
            border-color: var(--accent-gold);
            font-weight: 600;
        }

        .header-cta {
            flex-shrink: 0;
        }

        .btn-primary-gold {
            display: inline-block;
            padding: 10px 22px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--bg-base);
            background: var(--accent-gold);
            border: 1px solid var(--accent-gold);
            border-radius: var(--radius-sm);
            box-shadow: 0 2px 10px rgba(212, 168, 83, 0.35);
            transition: all 0.2s ease;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary-gold:hover {
            background: var(--accent-gold-hover);
            border-color: var(--accent-gold-hover);
            color: var(--bg-base);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(212, 168, 83, 0.45);
        }

        .btn-outline-gold {
            display: inline-block;
            padding: 10px 22px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--accent-gold);
            background: transparent;
            border: 1px solid var(--accent-gold);
            border-radius: var(--radius-sm);
            transition: all 0.2s ease;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-outline-gold:hover {
            background: var(--accent-gold);
            color: var(--bg-base);
            border-color: var(--accent-gold);
        }

        .navbar-toggler-custom {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            color: var(--text-primary);
            font-size: 20px;
            cursor: pointer;
            transition: border-color 0.2s ease;
        }

        .navbar-toggler-custom:hover {
            border-color: var(--accent-gold);
        }

        @media (max-width: 991px) {
            .navbar-toggler-custom {
                display: inline-block;
            }
            .nav-chips {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding-top: 10px;
            }
            .nav-chips.open {
                display: flex;
            }
            .nav-chip {
                text-align: center;
                padding: 10px 16px;
                font-size: 15px;
            }
            .header-cta {
                margin-left: auto;
            }
            .header-inner {
                flex-wrap: wrap;
            }
        }

        @media (max-width: 575px) {
            .logo-text {
                font-size: 18px;
            }
            .logo-sub {
                font-size: 10px;
            }
            .btn-primary-gold,
            .btn-outline-gold {
                padding: 8px 16px;
                font-size: 14px;
            }
            .site-header {
                padding: 8px 0;
            }
        }

        /* ============ HERO ============ */
        .hero-section {
            min-height: 100vh;
            padding-top: 160px;
            padding-bottom: 80px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            display: flex;
            align-items: center;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(23, 24, 28, 0.85) 0%, rgba(23, 24, 28, 0.45) 100%);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
        }

        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 24px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(31, 33, 39, 0.8);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            transition: border-color 0.2s ease;
        }

        .hero-badge .mono-num {
            color: var(--accent-gold);
            font-size: 20px;
        }

        .hero-title {
            font-family: var(--font-serif);
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 20px;
        }

        .hero-subtitle {
            font-size: 18px;
            line-height: 1.9;
            color: var(--text-secondary);
            margin-bottom: 32px;
            max-width: 560px;
        }

        .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        @media (max-width: 575px) {
            .hero-section {
                padding-top: 120px;
                min-height: auto;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-badge .mono-num {
                font-size: 17px;
            }
            .hero-cta-row {
                flex-direction: column;
            }
            .hero-cta-row .btn-primary-gold,
            .hero-cta-row .btn-outline-gold {
                width: 100%;
                text-align: center;
            }
        }

        /* ============ BRAND INTRO ============ */
        .brand-section {
            background: var(--bg-base);
        }
        .brand-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }
        .brand-panel {
            background: var(--bg-subtle);
            border: 1px solid var(--accent-gold);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-card);
        }
        .brand-panel-item {
            padding: 16px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .brand-panel-item:last-child {
            border-bottom: none;
        }
        .brand-panel-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 4px;
        }
        .brand-panel-value {
            font-family: var(--font-mono);
            font-size: 26px;
            font-weight: 700;
            color: var(--accent-gold);
        }
        @media (max-width: 767px) {
            .brand-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* ============ COMPARISON ============ */
        .comparison-section {
            background: var(--bg-base);
        }
        .comparison-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            font-size: 15px;
        }
        .comparison-table th,
        .comparison-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
            text-align: left;
            color: var(--text-secondary);
        }
        .comparison-table th {
            background: var(--bg-subtle);
            font-weight: 600;
            color: var(--text-primary);
            font-size: 14px;
            letter-spacing: 0.03em;
        }
        .comparison-table tr:last-child td {
            border-bottom: none;
        }
        .comparison-table .highlight-col {
            color: var(--accent-gold);
            font-weight: 600;
        }
        .comparison-table .muted-col {
            color: var(--text-muted);
        }
        @media (max-width: 575px) {
            .comparison-table th,
            .comparison-table td {
                padding: 10px 12px;
                font-size: 13px;
            }
        }

        /* ============ SOLUTION ============ */
        .solution-section {
            background: var(--bg-elevated);
        }
        .solution-grid {
            display: grid;
            grid-template-columns: 3fr 2fr;
            gap: 40px;
            align-items: start;
        }
        .solution-text h3 {
            font-size: 20px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-primary);
            margin-top: 28px;
            margin-bottom: 12px;
        }
        .solution-text h3:first-child {
            margin-top: 0;
        }
        .solution-text p {
            color: var(--text-secondary);
            margin-bottom: 16px;
        }
        .solution-visual {
            position: sticky;
            top: 120px;
        }
        .solution-visual img {
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
        }
        .solution-visual figcaption {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 8px;
            text-align: center;
        }
        @media (max-width: 767px) {
            .solution-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .solution-visual {
                position: static;
            }
        }

        /* ============ DATA SHOWCASE ============ */
        .data-showcase-section {
            background: var(--bg-base);
        }
        .data-card-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .data-card {
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: all 0.25s ease;
        }
        .data-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(212, 168, 83, 0.5);
        }
        .data-card-number {
            font-family: var(--font-mono);
            font-size: 40px;
            font-weight: 700;
            color: var(--accent-gold);
            line-height: 1.2;
            margin-bottom: 8px;
        }
        .data-card-unit {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .data-card-desc {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
        }
        @media (max-width: 991px) {
            .data-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 575px) {
            .data-card-grid {
                grid-template-columns: 1fr;
            }
            .data-card-number {
                font-size: 32px;
            }
        }

        /* ============ DEEP STRATEGY ============ */
        .deep-section {
            background: var(--bg-elevated);
        }
        .deep-grid {
            display: grid;
            grid-template-columns: 13fr 7fr;
            gap: 40px;
            align-items: start;
        }
        .deep-article h3 {
            font-size: 20px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-primary);
            margin-top: 28px;
            margin-bottom: 12px;
        }
        .deep-article h3:first-of-type {
            margin-top: 0;
        }
        .deep-article p {
            color: var(--text-secondary);
            margin-bottom: 16px;
        }
        .deep-toc {
            position: sticky;
            top: 120px;
            background: var(--bg-subtle);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
        }
        .deep-toc h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .deep-toc a {
            display: block;
            padding: 8px 0;
            font-size: 14px;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-color);
            transition: color 0.2s ease;
        }
        .deep-toc a:last-child {
            border-bottom: none;
        }
        .deep-toc a:hover {
            color: var(--accent-gold);
        }
        .read-more-link {
            display: inline-block;
            margin-top: 16px;
            font-size: 15px;
            font-weight: 600;
            color: var(--accent-gold);
            transition: color 0.2s ease;
        }
        .read-more-link:hover {
            color: var(--accent-gold-hover);
        }
        @media (max-width: 767px) {
            .deep-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .deep-toc {
                position: static;
                order: -1;
            }
        }

        /* ============ NEWS ============ */
        .news-section {
            background: var(--bg-base);
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 24px;
            padding: 20px;
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            transition: all 0.25s ease;
        }
        .news-item:hover {
            border-color: rgba(212, 168, 83, 0.5);
            box-shadow: var(--shadow-card-hover);
        }
        .news-date {
            flex-shrink: 0;
            min-width: 100px;
            padding-left: 16px;
            border-left: 2px solid var(--accent-gold);
            font-family: var(--font-mono);
            font-size: 14px;
            color: var(--accent-gold);
            line-height: 1.6;
        }
        .news-body {
            flex: 1;
        }
        .news-body h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .news-body p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }
        .news-btn {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-gold);
            background: transparent;
            border: 1px solid var(--accent-gold);
            border-radius: var(--radius-sm);
            padding: 6px 16px;
            transition: all 0.2s ease;
            cursor: pointer;
        }
        .news-btn:hover {
            background: var(--accent-gold);
            color: var(--bg-base);
        }
        @media (max-width: 575px) {
            .news-item {
                flex-direction: column;
                gap: 12px;
                padding: 16px;
            }
            .news-date {
                min-width: auto;
                padding-left: 12px;
            }
        }

        /* ============ TIMELINE ============ */
        .timeline-section {
            background: var(--bg-elevated);
        }
        .timeline-vertical {
            position: relative;
            padding-left: 32px;
        }
        .timeline-vertical::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 4px;
            bottom: 4px;
            width: 2px;
            background: var(--border-color);
        }
        .timeline-item {
            position: relative;
            padding-bottom: 28px;
        }
        .timeline-item:last-child {
            padding-bottom: 0;
        }
        .timeline-dot {
            position: absolute;
            left: -28px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent-gold);
            border: 2px solid var(--bg-base);
            box-shadow: 0 0 0 2px var(--accent-gold);
        }
        .timeline-date {
            font-family: var(--font-mono);
            font-size: 14px;
            color: var(--accent-cyan);
            margin-bottom: 4px;
        }
        .timeline-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .timeline-desc {
            font-size: 15px;
            color: var(--text-secondary);
        }

        /* ============ TESTIMONIALS ============ */
        .testimonial-section {
            background: var(--bg-base);
        }
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all 0.25s ease;
        }
        .testimonial-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(212, 168, 83, 0.5);
        }
        .testimonial-text {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }
        .testimonial-stars {
            display: flex;
            gap: 6px;
            margin-bottom: 12px;
        }
        .testimonial-stars span {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--accent-gold);
            border-radius: 1px;
        }
        .testimonial-author {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: 0.04em;
        }
        @media (max-width: 991px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ DANGER WARNING ============ */
        .warning-section {
            background: var(--bg-elevated);
        }
        .warning-panel {
            background: var(--danger-soft);
            border: 1px solid var(--danger);
            border-radius: var(--radius-md);
            padding: 28px;
            margin-top: 24px;
        }
        .warning-panel h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--danger);
            margin-bottom: 16px;
        }
        .warning-panel ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .warning-panel li {
            font-size: 15px;
            color: var(--text-secondary);
            padding: 8px 0;
            padding-left: 24px;
            position: relative;
            border-bottom: 1px solid rgba(198, 91, 78, 0.15);
        }
        .warning-panel li:last-child {
            border-bottom: none;
        }
        .warning-panel li::before {
            content: '⚠';
            position: absolute;
            left: 0;
            top: 8px;
            font-size: 14px;
            color: var(--danger);
        }

        /* ============ FAQ ============ */
        .faq-section {
            background: var(--bg-base);
        }
        .faq-accordion {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            background: var(--bg-elevated);
            overflow: hidden;
            transition: border-color 0.2s ease;
        }
        .faq-item.active {
            border-color: var(--accent-gold);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            background: transparent;
            border: none;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            transition: color 0.2s ease;
        }
        .faq-question:hover {
            color: var(--accent-gold);
        }
        .faq-item.active .faq-question {
            color: var(--accent-gold);
        }
        .faq-icon {
            flex-shrink: 0;
            font-size: 20px;
            color: var(--accent-gold);
            transition: transform 0.3s ease;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 20px 18px 20px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            border-left: 2px solid var(--accent-gold);
            margin-left: 20px;
            padding-left: 16px;
        }

        /* ============ RELATED RECOMMEND ============ */
        .related-section {
            background: var(--bg-elevated);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .related-card {
            background: var(--bg-base);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.25s ease;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(212, 168, 83, 0.5);
        }
        .related-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }
        .related-card-body {
            padding: 18px;
        }
        .related-card-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .related-card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }
        @media (max-width: 767px) {
            .related-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ RESOURCE CENTER ============ */
        .resource-section {
            background: var(--bg-base);
        }
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .resource-card {
            background: var(--bg-subtle);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: center;
            transition: all 0.25s ease;
        }
        .resource-card:hover {
            border-color: rgba(80, 168, 166, 0.6);
            transform: translateY(-4px);
        }
        .resource-card-icon {
            font-size: 28px;
            margin-bottom: 12px;
            color: var(--accent-cyan);
        }
        .resource-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .resource-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 0;
        }
        @media (max-width: 767px) {
            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 575px) {
            .resource-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ CTA ============ */
        .cta-section {
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            text-align: center;
            padding: 80px 0;
        }
        .cta-overlay {
            position: absolute;
            inset: 0;
            background: rgba(23, 24, 28, 0.8);
            pointer-events: none;
        }
        .cta-content {
            position: relative;
            z-index: 2;
        }
        .cta-content h2 {
            font-family: var(--font-serif);
            font-size: 32px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .cta-content p {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 auto 32px;
        }
        .cta-btn-row {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 16px;
        }
        @media (max-width: 575px) {
            .cta-content h2 {
                font-size: 24px;
            }
            .cta-btn-row {
                flex-direction: column;
                align-items: center;
            }
            .cta-btn-row .btn-primary-gold,
            .cta-btn-row .btn-outline-gold {
                width: 100%;
                text-align: center;
            }
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-base);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-top: 12px;
        }
        .footer-col h5 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col li {
            margin-bottom: 8px;
        }
        .footer-col a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }
        .footer-col a:hover {
            color: var(--accent-gold);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom a {
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--accent-gold);
        }
        @media (max-width: 767px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* ============ MISC ============ */
        .bg-elevated {
            background: var(--bg-elevated);
        }
        .bg-base {
            background: var(--bg-base);
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mt-0 {
            margin-top: 0;
        }
        .text-center {
            text-align: center;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

/* roulang page: category3 */
:root {
            --bg-base: #17181C;
            --bg-elevated: #1F2127;
            --bg-subtle: #26282F;
            --text-primary: #F2EFE6;
            --text-secondary: #B7B2A5;
            --text-muted: #7E7A6D;
            --accent-gold: #D4A853;
            --accent-gold-hover: #E2BB6B;
            --accent-cyan: #50A8A6;
            --accent-cyan-soft: rgba(80, 168, 166, 0.14);
            --accent-gold-soft: rgba(212, 168, 83, 0.14);
            --border-color: #3A3D45;
            --danger: #C65B4E;
            --danger-soft: rgba(198, 91, 78, 0.08);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 8px 28px rgba(0, 0, 0, 0.35);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-serif: "Noto Serif SC", "Source Han Serif SC", serif;
            --font-mono: "DIN Alternate", "SF Mono", "Consolas", monospace;
            --section-padding-desktop: 96px;
            --section-padding-tablet: 72px;
            --section-padding-mobile: 48px;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-primary);
            background-color: var(--bg-base);
            overflow-x: hidden;
            padding-top: 72px;
        }

        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover {
            color: var(--accent-gold-hover);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1140px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .container-wide {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .container-narrow {
            max-width: 780px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        section {
            padding: var(--section-padding-desktop) 0;
            position: relative;
        }

        .section-label {
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-gold);
            margin-bottom: 12px;
            display: inline-block;
        }

        .section-title {
            font-family: var(--font-serif);
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 32px;
        }

        .text-gold {
            color: var(--accent-gold);
        }

        .text-cyan {
            color: var(--accent-cyan);
        }

        .mono-num {
            font-family: var(--font-mono);
            font-size: 1.2em;
        }

        /* ============ HEADER NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(23, 24, 28, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            padding: 12px 0;
            transition: box-shadow 0.2s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
        }

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

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.03em;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .logo-text .logo-highlight {
            color: var(--accent-gold);
        }

        .logo-sub {
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--accent-gold);
            white-space: nowrap;
        }

        .nav-chips {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .nav-chip {
            display: inline-block;
            padding: 7px 16px;
            font-size: 14px;
            font-weight: 500;
            line-height: 1.4;
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .nav-chip:hover {
            color: var(--accent-gold-hover);
            border-color: var(--accent-gold);
            transform: translateY(-1px);
        }

        .nav-chip.active {
            color: var(--bg-base);
            background: var(--accent-gold);
            border-color: var(--accent-gold);
        }

        .header-cta {
            flex-shrink: 0;
        }

        .btn-primary-gold {
            display: inline-block;
            padding: 10px 22px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--bg-base);
            background: var(--accent-gold);
            border: 1px solid var(--accent-gold);
            border-radius: var(--radius-sm);
            box-shadow: 0 2px 10px rgba(212, 168, 83, 0.35);
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .btn-primary-gold:hover {
            background: var(--accent-gold-hover);
            border-color: var(--accent-gold-hover);
            color: var(--bg-base);
            transform: translateY(-2px);
            box-shadow: 0 4px 14px rgba(212, 168, 83, 0.45);
        }

        .btn-secondary-gold {
            display: inline-block;
            padding: 10px 22px;
            font-size: 15px;
            font-weight: 500;
            line-height: 1.5;
            color: var(--accent-gold);
            background: transparent;
            border: 1px solid var(--accent-gold);
            border-radius: var(--radius-sm);
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .btn-secondary-gold:hover {
            color: var(--accent-gold-hover);
            border-color: var(--accent-gold-hover);
            transform: translateY(-2px);
        }

        .navbar-toggler-custom {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            font-size: 20px;
            line-height: 1;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .navbar-toggler-custom:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 32px;
            margin-top: 0;
        }

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

        .footer-brand p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-top: 16px;
        }

        .footer-col h5 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: var(--text-secondary);
            font-size: 15px;
            transition: color 0.2s ease;
        }

        .footer-col ul li a:hover {
            color: var(--accent-gold);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: space-between;
            font-size: 14px;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }

        .footer-bottom a:hover {
            color: var(--accent-gold);
        }

        /* ============ PAGE SPECIFIC ============ */
        .hero-strategy {
            padding-top: 60px;
            padding-bottom: 48px;
            background: linear-gradient(to bottom, rgba(23,24,28,0.97), rgba(23,24,28,0.85)), url('/assets/images/backpic/back-1.webp') center/cover;
            border-bottom: 1px solid var(--border-color);
        }

        .hero-strategy h1 {
            font-family: var(--font-serif);
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 20px;
        }

        .hero-strategy .lead {
            font-size: 18px;
            line-height: 1.9;
            color: var(--text-secondary);
            max-width: 680px;
        }

        .strategy-content {
            padding-top: 48px;
            padding-bottom: 48px;
        }

        .strategy-article {
            max-width: 780px;
            margin: 0 auto;
        }

        .strategy-article h2 {
            font-family: var(--font-serif);
            font-size: 24px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-primary);
            margin-top: 40px;
            margin-bottom: 16px;
            padding-left: 16px;
            border-left: 3px solid var(--accent-gold);
        }

        .strategy-article p {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }

        .strategy-card {
            background: var(--bg-elevated);
            border: 1px solid var(--accent-gold);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            margin: 32px 0;
            box-shadow: var(--shadow-card);
        }

        .strategy-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--accent-gold);
            margin-bottom: 14px;
        }

        .strategy-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .strategy-card ul li {
            padding-left: 20px;
            position: relative;
            margin-bottom: 10px;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-secondary);
        }

        .strategy-card ul li::before {
            content: '◆';
            position: absolute;
            left: 0;
            top: 0;
            color: var(--accent-gold);
            font-size: 12px;
        }

        .strategy-image {
            margin: 32px 0;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
        }

        .strategy-image figcaption {
            font-size: 13px;
            color: var(--text-muted);
            padding: 8px 12px;
            background: var(--bg-subtle);
            border-top: 1px solid var(--border-color);
        }

        .risk-panel {
            background: var(--danger-soft);
            border: 1px solid var(--danger);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            margin-top: 40px;
        }

        .risk-panel h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--danger);
            margin-bottom: 14px;
        }

        .risk-panel p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        @media (max-width: 992px) {
            .navbar-toggler-custom {
                display: block;
            }
            .nav-chips {
                display: none;
                flex-direction: column;
                width: 100%;
                align-items: flex-start;
                gap: 4px;
                background: var(--bg-elevated);
                border-radius: var(--radius-md);
                padding: 12px;
                border: 1px solid var(--border-color);
            }
            .nav-chips.open {
                display: flex;
            }
            .nav-chip {
                width: 100%;
                text-align: left;
                padding: 10px 16px;
            }
            .header-cta {
                margin-left: auto;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            section {
                padding: var(--section-padding-tablet) 0;
            }
            .hero-strategy h1 {
                font-size: 32px;
            }
        }

        @media (max-width: 576px) {
            body {
                font-size: 15px;
                line-height: 1.8;
                padding-top: 64px;
            }
            section {
                padding: var(--section-padding-mobile) 0;
            }
            .hero-strategy {
                padding-top: 32px;
                padding-bottom: 32px;
            }
            .hero-strategy h1 {
                font-size: 28px;
            }
            .section-title {
                font-size: 24px;
            }
            .section-desc {
                font-size: 15px;
            }
            .strategy-article h2 {
                font-size: 20px;
            }
            .strategy-article p {
                font-size: 15px;
            }
            .strategy-card {
                padding: 18px 20px;
            }
            .strategy-card ul li {
                font-size: 14px;
            }
            .risk-panel {
                padding: 18px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-base: #17181C;
            --bg-elevated: #1F2127;
            --bg-subtle: #26282F;
            --text-primary: #F2EFE6;
            --text-secondary: #B7B2A5;
            --text-muted: #7E7A6D;
            --accent-gold: #D4A853;
            --accent-gold-hover: #E2BB6B;
            --accent-cyan: #50A8A6;
            --accent-cyan-soft: rgba(80, 168, 166, 0.14);
            --accent-gold-soft: rgba(212, 168, 83, 0.14);
            --border-color: #3A3D45;
            --danger: #C65B4E;
            --danger-soft: rgba(198, 91, 78, 0.08);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 8px 28px rgba(0, 0, 0, 0.35);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-serif: "Noto Serif SC", "Source Han Serif SC", serif;
            --font-mono: "DIN Alternate", "SF Mono", "Consolas", monospace;
            --section-padding-desktop: 96px;
            --section-padding-tablet: 72px;
            --section-padding-mobile: 48px;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-primary);
            background-color: var(--bg-base);
            overflow-x: hidden;
        }

        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--accent-gold-hover);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container {
            max-width: 1140px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .container-wide {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .container-narrow {
            max-width: 780px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        section {
            padding: var(--section-padding-desktop) 0;
            position: relative;
        }

        .btn {
            transition: all 0.25s ease;
            border-radius: var(--radius-sm);
            font-weight: 500;
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

        .btn-primary-gold {
            background: var(--accent-gold);
            border: 1px solid var(--accent-gold);
            color: #17181C;
            padding: 12px 28px;
            font-size: 15px;
            box-shadow: 0 2px 10px rgba(212, 168, 83, 0.35);
        }
        .btn-primary-gold:hover,
        .btn-primary-gold:focus {
            background: var(--accent-gold-hover);
            border-color: var(--accent-gold-hover);
            color: #17181C;
            transform: translateY(-2px);
            box-shadow: 0 4px 18px rgba(212, 168, 83, 0.45);
        }

        .btn-outline-gold {
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 12px 28px;
            font-size: 15px;
            box-shadow: none;
        }
        .btn-outline-gold:hover,
        .btn-outline-gold:focus {
            background: var(--accent-gold-soft);
            border-color: var(--accent-gold-hover);
            color: var(--accent-gold-hover);
            transform: translateY(-2px);
        }

        .section-label {
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-gold);
            margin-bottom: 12px;
            display: inline-block;
        }

        .section-title {
            font-family: var(--font-serif);
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 32px;
        }

        .text-gold { color: var(--accent-gold); }
        .text-cyan { color: var(--accent-cyan); }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(23, 24, 28, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            padding: 12px 0;
            transition: box-shadow 0.2s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.03em;
            color: var(--text-primary);
            white-space: nowrap;
        }
        .logo-text .logo-highlight {
            color: var(--accent-gold);
        }
        .logo-sub {
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--accent-gold);
            white-space: nowrap;
        }
        .nav-chips {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        .nav-chip {
            display: inline-block;
            padding: 7px 16px;
            font-size: 14px;
            font-weight: 500;
            line-height: 1.4;
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .nav-chip:hover {
            color: var(--accent-gold-hover);
            border-color: var(--accent-gold);
            background: var(--accent-gold-soft);
        }
        .nav-chip.active {
            color: #17181C;
            background: var(--accent-gold);
            border-color: var(--accent-gold);
            font-weight: 600;
        }
        .navbar-toggler-custom {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            font-size: 22px;
            padding: 6px 14px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .navbar-toggler-custom:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
        }
        .header-cta {
            flex-shrink: 0;
        }
        .header-cta .btn-primary-gold {
            padding: 8px 20px;
            font-size: 14px;
        }

        /* Hero */
        .page-hero {
            padding-top: 140px;
            padding-bottom: 60px;
            background: linear-gradient(180deg, rgba(23,24,28,0.97) 0%, rgba(23,24,28,0.88) 40%, rgba(23,24,28,1) 100%);
            border-bottom: 1px solid var(--border-color);
            position: relative;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            pointer-events: none;
            z-index: 0;
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
        }
        .page-hero h1 {
            font-family: var(--font-serif);
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .page-hero .hero-sub {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-secondary);
            max-width: 680px;
        }

        /* Chart Area */
        .chart-area {
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px;
            margin-bottom: 24px;
            position: relative;
            overflow: hidden;
            min-height: 320px;
        }
        .chart-area .chart-placeholder {
            display: flex;
            align-items: center;
            justify-content: center;
            height: 260px;
            background: var(--bg-subtle);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-color);
            position: relative;
            overflow: hidden;
        }
        .chart-area .chart-placeholder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.75;
        }
        .chart-area .chart-overlay {
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(23,24,28,0.35);
        }
        .chart-area .chart-overlay span {
            font-size: 18px;
            color: var(--text-primary);
            background: rgba(23,24,28,0.8);
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--accent-gold);
            font-weight: 500;
        }
        .chart-legend {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            margin-top: 16px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .chart-legend .legend-item {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .chart-legend .legend-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            flex-shrink: 0;
        }
        .legend-dot.gold { background: var(--accent-gold); }
        .legend-dot.cyan { background: var(--accent-cyan); }
        .legend-dot.grey { background: var(--text-muted); }

        /* Analysis Layout */
        .analysis-grid {
            display: flex;
            gap: 32px;
            align-items: flex-start;
        }
        .analysis-main {
            flex: 0 0 60%;
            min-width: 0;
        }
        .analysis-side {
            flex: 0 0 40%;
            min-width: 0;
        }

        .analysis-section {
            margin-bottom: 40px;
        }
        .analysis-section h2 {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
            padding-left: 16px;
            border-left: 3px solid var(--accent-gold);
        }
        .analysis-section p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }

        /* Indicator Cards */
        .metric-card {
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin-bottom: 14px;
            transition: all 0.25s ease;
            box-shadow: var(--shadow-card);
        }
        .metric-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(212, 168, 83, 0.5);
        }
        .metric-card .metric-label {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0.04em;
            margin-bottom: 6px;
        }
        .metric-card .metric-value {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: var(--accent-cyan);
            line-height: 1.2;
            letter-spacing: 0.02em;
        }
        .metric-card .metric-unit {
            font-size: 13px;
            color: var(--text-muted);
            margin-left: 4px;
            font-family: var(--font-sans);
        }
        .metric-card .metric-desc {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
            line-height: 1.6;
        }

        /* Additional Sections */
        .insight-panel {
            background: var(--bg-subtle);
            border: 1px solid var(--accent-gold);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            margin-top: 32px;
        }
        .insight-panel h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--accent-gold);
            margin-bottom: 12px;
        }
        .insight-panel p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.9;
        }

        .faq-section {
            background: var(--bg-elevated);
            border-radius: var(--radius-lg);
            padding: 40px;
            margin-top: 40px;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 18px 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: color 0.2s ease;
            user-select: none;
        }
        .faq-question:hover {
            color: var(--accent-gold);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            color: var(--accent-gold);
            font-size: 18px;
            transition: transform 0.3s ease;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 10px;
        }

        .cta-section {
            background: linear-gradient(180deg, rgba(23,24,28,0.95) 0%, rgba(23,24,28,0.98) 100%);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            padding: 56px 40px;
            text-align: center;
            margin-top: 40px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-family: var(--font-serif);
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 auto 24px;
        }
        .cta-section .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 24px;
            margin-top: 60px;
        }
        .footer-grid {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
        }
        .footer-brand {
            flex: 0 0 30%;
            min-width: 240px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-top: 12px;
        }
        .footer-col {
            flex: 1;
            min-width: 150px;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }
        .footer-col ul li a:hover {
            color: var(--accent-gold);
        }
        .footer-col ul li:not(a) {
            font-size: 14px;
            color: var(--text-muted);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: space-between;
            align-items: center;
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
            font-size: 13px;
        }
        .footer-bottom a:hover {
            color: var(--accent-gold);
        }

        /* Responsive */
        @media (max-width: 992px) {
            .navbar-toggler-custom { display: block; }
            .nav-chips {
                display: none;
                flex-direction: column;
                width: 100%;
                padding-top: 12px;
                gap: 6px;
            }
            .nav-chips.show {
                display: flex;
            }
            .nav-chip {
                display: block;
                text-align: center;
                padding: 10px 16px;
            }
            .header-cta {
                margin-left: auto;
            }
            .analysis-grid {
                flex-direction: column;
            }
            .analysis-main,
            .analysis-side {
                flex: 0 0 100%;
            }
            .page-hero h1 {
                font-size: 32px;
            }
        }

        @media (max-width: 768px) {
            section {
                padding: var(--section-padding-mobile) 0;
            }
            .page-hero {
                padding-top: 110px;
                padding-bottom: 40px;
            }
            .section-title {
                font-size: 24px;
            }
            .chart-area {
                padding: 16px;
            }
            .chart-area .chart-placeholder {
                height: 180px;
            }
            .metric-card .metric-value {
                font-size: 24px;
            }
            .faq-section {
                padding: 24px 16px;
            }
            .cta-section {
                padding: 36px 20px;
            }
            .footer-grid {
                flex-direction: column;
                gap: 24px;
            }
            .footer-brand {
                flex: 0 0 100%;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (max-width: 576px) {
            body {
                font-size: 15px;
                line-height: 1.8;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero .hero-sub {
                font-size: 15px;
            }
            .section-title {
                font-size: 22px;
            }
            .btn-primary-gold,
            .btn-outline-gold {
                width: 100%;
                text-align: center;
                padding: 10px 20px;
                font-size: 14px;
            }
            .cta-section .btn-group {
                flex-direction: column;
            }
            .chart-legend {
                gap: 12px;
                font-size: 12px;
            }
            .insight-panel {
                padding: 16px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-base: #17181C;
            --bg-elevated: #1F2127;
            --bg-subtle: #26282F;
            --text-primary: #F2EFE6;
            --text-secondary: #B7B2A5;
            --text-muted: #7E7A6D;
            --accent-gold: #D4A853;
            --accent-gold-hover: #E2BB6B;
            --accent-cyan: #50A8A6;
            --accent-cyan-soft: rgba(80, 168, 166, 0.14);
            --accent-gold-soft: rgba(212, 168, 83, 0.14);
            --border-color: #3A3D45;
            --danger: #C65B4E;
            --danger-soft: rgba(198, 91, 78, 0.08);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 8px 28px rgba(0, 0, 0, 0.35);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-serif: "Noto Serif SC", "Source Han Serif SC", serif;
            --font-mono: "DIN Alternate", "SF Mono", "Consolas", monospace;
            --section-padding-desktop: 96px;
            --section-padding-tablet: 72px;
            --section-padding-mobile: 48px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-primary);
            background-color: var(--bg-base);
            overflow-x: hidden;
            padding-top: 72px;
        }

        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover {
            color: var(--accent-gold-hover);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1140px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .container-wide {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .container-narrow {
            max-width: 780px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        section {
            padding: var(--section-padding-desktop) 0;
            position: relative;
        }

        .section-label {
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-gold);
            margin-bottom: 12px;
            display: inline-block;
        }

        .section-title {
            font-family: var(--font-serif);
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 32px;
        }

        .text-gold {
            color: var(--accent-gold);
        }

        .text-cyan {
            color: var(--accent-cyan);
        }

        .font-mono {
            font-family: var(--font-mono);
            letter-spacing: 0.02em;
        }

        /* Header Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(23, 24, 28, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            padding: 12px 0;
            transition: box-shadow 0.2s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
        }

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

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-area a {
            display: block;
        }

        .logo-text {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.03em;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .logo-text .logo-highlight {
            color: var(--accent-gold);
        }

        .logo-sub {
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--accent-gold);
            white-space: nowrap;
            display: block;
            margin-top: 2px;
        }

        .nav-chips {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .nav-chip {
            display: inline-block;
            padding: 7px 16px;
            font-size: 14px;
            font-weight: 500;
            line-height: 1.4;
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .nav-chip:hover {
            color: var(--accent-gold);
            border-color: var(--accent-gold);
        }

        .nav-chip.active {
            background: var(--accent-gold);
            color: var(--bg-base);
            border-color: var(--accent-gold);
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(212, 168, 83, 0.35);
        }

        .header-cta {
            flex-shrink: 0;
        }

        .btn-primary-gold {
            display: inline-block;
            padding: 11px 24px;
            font-size: 14px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--bg-base);
            background: var(--accent-gold);
            border: 1px solid var(--accent-gold);
            border-radius: var(--radius-sm);
            transition: all 0.2s ease;
            white-space: nowrap;
            box-shadow: 0 2px 10px rgba(212, 168, 83, 0.35);
        }

        .btn-primary-gold:hover {
            background: var(--accent-gold-hover);
            border-color: var(--accent-gold-hover);
            color: var(--bg-base);
            transform: translateY(-1px);
            box-shadow: 0 4px 18px rgba(212, 168, 83, 0.45);
        }

        .btn-outline-gold {
            display: inline-block;
            padding: 11px 24px;
            font-size: 14px;
            font-weight: 500;
            line-height: 1.4;
            color: var(--accent-gold);
            background: transparent;
            border: 1px solid var(--accent-gold);
            border-radius: var(--radius-sm);
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .btn-outline-gold:hover {
            background: var(--accent-gold);
            color: var(--bg-base);
            border-color: var(--accent-gold);
            transform: translateY(-1px);
        }

        .navbar-toggler-custom {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            padding: 8px 12px;
            font-size: 20px;
            line-height: 1;
            cursor: pointer;
            transition: border-color 0.2s ease;
        }

        .navbar-toggler-custom:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
        }

        /* Hero Section */
        .hero-section {
            padding: 72px 0 48px;
            background: linear-gradient(180deg, rgba(23, 24, 28, 0.95) 0%, rgba(23, 24, 28, 0.7) 100%);
            border-bottom: 1px solid var(--border-color);
        }

        .hero-bg-visual {
            position: absolute;
            top: 0;
            right: 0;
            left: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 1;
        }

        .hero-title {
            font-family: var(--font-serif);
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 16px;
            max-width: 800px;
        }

        .hero-subtitle {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-secondary);
            max-width: 640px;
            margin-bottom: 32px;
        }

        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 32px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            font-size: 13px;
            color: var(--text-secondary);
        }

        .hero-badge .badge-number {
            font-family: var(--font-mono);
            font-size: 18px;
            font-weight: 700;
            color: var(--accent-gold);
        }

        /* Prize Pool Cards */
        .prize-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
            position: relative;
            z-index: 1;
        }

        .prize-card {
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: all 0.25s ease;
        }

        .prize-card:hover {
            border-color: rgba(212, 168, 83, 0.5);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .prize-card-label {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-muted);
            margin-bottom: 8px;
            letter-spacing: 0.05em;
        }

        .prize-card-value {
            font-family: var(--font-mono);
            font-size: 36px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--accent-gold);
            margin-bottom: 8px;
        }

        .prize-card-desc {
            font-size: 14px;
            line-height: 1.6;
            color: var(--text-secondary);
        }

        /* Table Section */
        .data-table-section {
            padding-top: 48px;
            padding-bottom: 48px;
        }

        .table-wrapper {
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            padding: 24px;
        }

        .table-custom {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
            color: var(--text-primary);
        }

        .table-custom thead th {
            background: var(--bg-subtle);
            border-bottom: 2px solid var(--accent-gold);
            padding: 14px 12px;
            font-weight: 600;
            font-size: 13px;
            letter-spacing: 0.03em;
            color: var(--accent-gold);
            text-align: left;
            white-space: nowrap;
        }

        .table-custom tbody tr {
            border-bottom: 1px solid var(--border-color);
            transition: background 0.2s ease;
        }

        .table-custom tbody tr:nth-child(odd) {
            background: rgba(31, 33, 39, 0.6);
        }

        .table-custom tbody tr:nth-child(even) {
            background: rgba(38, 40, 47, 0.35);
        }

        .table-custom tbody tr:hover {
            background: var(--accent-cyan-soft);
        }

        .table-custom tbody td {
            padding: 12px;
            font-size: 14px;
            color: var(--text-secondary);
            vertical-align: middle;
            white-space: nowrap;
        }

        .table-custom .draw-num {
            font-family: var(--font-mono);
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: 0.06em;
        }

        .table-custom .prize-amount {
            font-family: var(--font-mono);
            color: var(--accent-gold);
            font-weight: 600;
        }

        .table-custom .detail-link {
            color: var(--accent-cyan);
            font-size: 13px;
            transition: color 0.2s ease;
        }

        .table-custom .detail-link:hover {
            color: var(--accent-gold);
        }

        /* Timeline */
        .timeline-wrapper {
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            height: 100%;
        }

        .timeline-item {
            position: relative;
            padding-left: 28px;
            padding-bottom: 24px;
            border-left: 1px solid var(--border-color);
            margin-left: 6px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
            border-left-color: transparent;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -5px;
            top: 4px;
            width: 9px;
            height: 9px;
            background: var(--accent-gold);
            border-radius: 50%;
            border: 2px solid var(--bg-elevated);
        }

        .timeline-date {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-gold);
            margin-bottom: 4px;
        }

        .timeline-desc {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
        }

        /* Explanation Section */
        .explanation-section {
            padding: 48px 0 72px;
        }

        .explanation-panel {
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px;
            border-left: 3px solid var(--accent-gold);
        }

        .explanation-panel p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

        .explanation-panel p:last-child {
            margin-bottom: 0;
        }

        /* Deep Content */
        .deep-content-section {
            padding: 48px 0 72px;
            background: var(--bg-elevated);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .content-block {
            margin-bottom: 40px;
        }

        .content-block h3 {
            font-size: 20px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .content-block p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

        .content-block .highlight-box {
            background: var(--accent-gold-soft);
            border: 1px solid rgba(212, 168, 83, 0.3);
            border-radius: var(--radius-sm);
            padding: 16px 20px;
            margin: 16px 0;
        }

        .content-block .highlight-box p {
            margin-bottom: 0;
            color: var(--text-primary);
        }

        /* FAQ */
        .faq-section {
            padding: 72px 0;
        }

        .faq-item {
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            margin-bottom: 8px;
            overflow: hidden;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            transition: color 0.2s ease;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-sans);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            margin-left: 12px;
            font-size: 14px;
            color: var(--text-muted);
            transition: transform 0.3s ease;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            color: var(--accent-gold);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 20px 20px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            border-left: 2px solid var(--accent-gold);
            margin-left: 20px;
            padding-left: 16px;
        }

        /* CTA Section */
        .cta-section {
            padding: 72px 0;
            background: linear-gradient(180deg, rgba(23, 24, 28, 0.85) 0%, rgba(23, 24, 28, 0.6) 100%);
            position: relative;
            border-top: 1px solid var(--border-color);
        }

        .cta-bg {
            position: absolute;
            top: 0;
            right: 0;
            left: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .cta-content h2 {
            font-family: var(--font-serif);
            font-size: 30px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .cta-content p {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin-top: 12px;
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-gold);
            margin-bottom: 12px;
            letter-spacing: 0.05em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }

        .footer-col ul li a:hover {
            color: var(--accent-gold);
        }

        .footer-col ul li {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border-color);
            padding-top: 20px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
            transition: color 0.2s ease;
        }

        .footer-bottom a:hover {
            color: var(--accent-gold);
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            body {
                padding-top: 64px;
                font-size: 15px;
                line-height: 1.8;
            }

            section {
                padding: var(--section-padding-tablet) 0;
            }

            .section-title {
                font-size: 24px;
            }

            .hero-title {
                font-size: 32px;
            }

            .prize-cards {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .prize-card-value {
                font-size: 28px;
            }

            .navbar-toggler-custom {
                display: block;
            }

            .nav-chips {
                display: none;
                flex-direction: column;
                align-items: stretch;
                width: 100%;
                gap: 4px;
                padding-top: 8px;
                border-top: 1px solid var(--border-color);
                margin-top: 8px;
            }

            .nav-chips.open {
                display: flex;
            }

            .nav-chip {
                text-align: center;
                padding: 10px 16px;
            }

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

        @media (max-width: 767.98px) {
            section {
                padding: var(--section-padding-mobile) 0;
            }

            .hero-section {
                padding: 48px 0 32px;
            }

            .hero-title {
                font-size: 26px;
                line-height: 1.35;
            }

            .hero-subtitle {
                font-size: 15px;
            }

            .hero-badges {
                gap: 8px;
            }

            .hero-badge {
                padding: 6px 12px;
                font-size: 12px;
            }

            .prize-cards {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .prize-card {
                padding: 16px;
            }

            .prize-card-value {
                font-size: 28px;
            }

            .table-wrapper {
                padding: 16px;
                overflow-x: auto;
            }

            .timeline-wrapper {
                margin-top: 16px;
            }

            .explanation-panel {
                padding: 20px;
            }

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

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .cta-buttons .btn-primary-gold,
            .cta-buttons .btn-outline-gold {
                width: 100%;
                text-align: center;
                margin-bottom: 8px;
            }

            .section-desc {
                font-size: 15px;
            }

            .content-block h3 {
                font-size: 18px;
            }

            .content-block p {
                font-size: 15px;
            }

            .faq-question {
                padding: 14px 16px;
                font-size: 15px;
            }

            .header-cta {
                display: none;
            }
        }

        @media (max-width: 575.98px) {
            body {
                font-size: 15px;
                line-height: 1.8;
                padding-top: 58px;
            }

            .hero-title {
                font-size: 22px;
            }

            .section-title {
                font-size: 22px;
            }

            .prize-card-value {
                font-size: 24px;
            }

            .table-custom {
                font-size: 12px;
            }

            .table-custom thead th {
                padding: 10px 8px;
                font-size: 11px;
            }

            .table-custom tbody td {
                padding: 10px 8px;
                font-size: 12px;
            }

            .cta-content h2 {
                font-size: 24px;
            }

            .logo-text {
                font-size: 18px;
            }
        }

/* roulang page: category5 */
:root {
            --bg-base: #17181C;
            --bg-elevated: #1F2127;
            --bg-subtle: #26282F;
            --text-primary: #F2EFE6;
            --text-secondary: #B7B2A5;
            --text-muted: #7E7A6D;
            --accent-gold: #D4A853;
            --accent-gold-hover: #E2BB6B;
            --accent-cyan: #50A8A6;
            --accent-cyan-soft: rgba(80, 168, 166, 0.14);
            --accent-gold-soft: rgba(212, 168, 83, 0.14);
            --border-color: #3A3D45;
            --danger: #C65B4E;
            --danger-soft: rgba(198, 91, 78, 0.08);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 8px 28px rgba(0, 0, 0, 0.35);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-serif: "Noto Serif SC", "Source Han Serif SC", serif;
            --font-mono: "DIN Alternate", "SF Mono", "Consolas", monospace;
            --section-padding-desktop: 96px;
            --section-padding-tablet: 72px;
            --section-padding-mobile: 48px;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-primary);
            background-color: var(--bg-base);
            overflow-x: hidden;
            padding-top: 72px;
        }

        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--accent-gold-hover);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container {
            max-width: 1140px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .container-wide {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .container-narrow {
            max-width: 780px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        section {
            padding: var(--section-padding-desktop) 0;
            position: relative;
        }
        @media (max-width: 991px) {
            section {
                padding: var(--section-padding-tablet) 0;
            }
        }
        @media (max-width: 575px) {
            section {
                padding: var(--section-padding-mobile) 0;
            }
            body {
                font-size: 15px;
                line-height: 1.8;
            }
        }

        .section-label {
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-gold);
            margin-bottom: 12px;
            display: inline-block;
        }
        .section-title {
            font-family: var(--font-serif);
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 32px;
        }
        @media (max-width: 575px) {
            .section-title {
                font-size: 24px;
            }
            .section-desc {
                font-size: 15px;
            }
        }
        .text-gold {
            color: var(--accent-gold);
        }
        .text-cyan {
            color: var(--accent-cyan);
        }
        .mono {
            font-family: var(--font-mono);
            font-size: 1.25em;
        }

        /* ============ HEADER NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(23, 24, 28, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            padding: 12px 0;
            transition: box-shadow 0.2s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.03em;
            color: var(--text-primary);
            white-space: nowrap;
        }
        .logo-text .logo-highlight {
            color: var(--accent-gold);
        }
        .logo-sub {
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--accent-gold);
            white-space: nowrap;
        }
        .nav-chips {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        .nav-chip {
            display: inline-block;
            padding: 7px 16px;
            font-size: 14px;
            font-weight: 500;
            line-height: 1.4;
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .nav-chip:hover {
            color: var(--accent-gold);
            border-color: var(--accent-gold);
            background: var(--accent-gold-soft);
        }
        .nav-chip.active {
            color: var(--bg-base);
            background: var(--accent-gold);
            border-color: var(--accent-gold);
            font-weight: 600;
        }
        .navbar-toggler-custom {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 22px;
            padding: 6px 12px;
            cursor: pointer;
            line-height: 1;
            transition: all 0.2s ease;
        }
        .navbar-toggler-custom:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
        }
        .header-cta {
            flex-shrink: 0;
        }
        .btn-primary-gold {
            display: inline-block;
            background: var(--accent-gold);
            color: var(--bg-base);
            font-weight: 600;
            font-size: 15px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--accent-gold);
            box-shadow: 0 2px 10px rgba(212, 168, 83, 0.35);
            transition: all 0.25s ease;
            text-align: center;
            white-space: nowrap;
        }
        .btn-primary-gold:hover {
            background: var(--accent-gold-hover);
            border-color: var(--accent-gold-hover);
            color: var(--bg-base);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(212, 168, 83, 0.45);
        }
        .btn-secondary-outline {
            display: inline-block;
            background: transparent;
            color: var(--accent-gold);
            font-weight: 500;
            font-size: 15px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--accent-gold);
            transition: all 0.2s ease;
            text-align: center;
            white-space: nowrap;
        }
        .btn-secondary-outline:hover {
            background: var(--accent-gold);
            color: var(--bg-base);
            transform: translateY(-2px);
        }

        @media (max-width: 991px) {
            .navbar-toggler-custom {
                display: block;
            }
            .nav-chips {
                display: none;
                flex-direction: column;
                width: 100%;
                align-items: stretch;
                padding-top: 12px;
                gap: 6px;
            }
            .nav-chips.open {
                display: flex;
            }
            .nav-chip {
                text-align: center;
                display: block;
            }
            .header-cta {
                margin-left: auto;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .logo-area {
                flex-shrink: 0;
            }
        }

        /* ============ HERO ============ */
        .hero-eval {
            background: var(--bg-base);
            border-bottom: 1px solid var(--border-color);
            padding: 72px 0 56px;
            position: relative;
            overflow: hidden;
        }
        .hero-eval::before {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 40%;
            height: 100%;
            background: var(--accent-gold-soft);
            pointer-events: none;
            border-left: 1px solid rgba(212, 168, 83, 0.2);
        }
        .hero-eval h1 {
            font-family: var(--font-serif);
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }
        .hero-eval .hero-sub {
            font-size: 18px;
            line-height: 1.9;
            color: var(--text-secondary);
            max-width: 560px;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
        }
        .hero-badges {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .hero-badge {
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 10px 18px;
            font-size: 14px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hero-badge .badge-num {
            font-family: var(--font-mono);
            font-size: 20px;
            color: var(--accent-gold);
            font-weight: 700;
        }
        @media (max-width: 575px) {
            .hero-eval {
                padding: 48px 0 36px;
            }
            .hero-eval h1 {
                font-size: 32px;
            }
            .hero-eval .hero-sub {
                font-size: 15px;
            }
        }

        /* ============ SECTION CARDS ============ */
        .card-eval {
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: all 0.25s ease;
            box-shadow: var(--shadow-card);
            height: 100%;
        }
        .card-eval:hover {
            border-color: rgba(212, 168, 83, 0.5);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .card-eval h3 {
            font-size: 20px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .card-eval p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        /* ============ TABLES ============ */
        .table-eval {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            background: var(--bg-elevated);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            font-size: 15px;
        }
        .table-eval thead th {
            background: var(--bg-subtle);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 0.03em;
            padding: 16px 20px;
            text-align: center;
            border-bottom: 2px solid var(--accent-gold);
            white-space: nowrap;
        }
        .table-eval thead th:first-child {
            text-align: left;
        }
        .table-eval tbody td {
            padding: 16px 20px;
            text-align: center;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-secondary);
            background: var(--bg-elevated);
            vertical-align: middle;
        }
        .table-eval tbody tr:nth-child(even) td {
            background: rgba(38, 40, 47, 0.6);
        }
        .table-eval tbody tr:hover td {
            background: var(--accent-cyan-soft);
            color: var(--text-primary);
        }
        .table-eval tbody td:first-child {
            text-align: left;
            font-weight: 500;
            color: var(--text-primary);
            white-space: nowrap;
        }
        .table-eval tbody tr:last-child td {
            border-bottom: none;
        }
        .rating-excellent {
            color: var(--accent-gold);
            font-weight: 600;
            background: var(--accent-gold-soft);
            border-radius: var(--radius-sm);
            padding: 4px 12px;
            display: inline-block;
            font-size: 14px;
        }
        .rating-good {
            color: var(--accent-cyan);
            font-weight: 500;
            background: var(--accent-cyan-soft);
            border-radius: var(--radius-sm);
            padding: 4px 12px;
            display: inline-block;
            font-size: 14px;
        }
        .rating-fair {
            color: var(--text-secondary);
            background: var(--bg-subtle);
            border-radius: var(--radius-sm);
            padding: 4px 12px;
            display: inline-block;
            font-size: 14px;
        }
        .rating-warn {
            color: var(--danger);
            background: var(--danger-soft);
            border-radius: var(--radius-sm);
            padding: 4px 12px;
            display: inline-block;
            font-size: 14px;
            font-weight: 500;
        }
        @media (max-width: 767px) {
            .table-eval-wrap {
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
            }
            .table-eval {
                min-width: 720px;
                font-size: 14px;
            }
            .table-eval thead th {
                padding: 12px 14px;
                font-size: 13px;
            }
            .table-eval tbody td {
                padding: 12px 14px;
                font-size: 13px;
            }
        }

        /* ============ PLATFORM CARDS ============ */
        .platform-card {
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: all 0.25s ease;
            height: 100%;
            position: relative;
            box-shadow: var(--shadow-card);
        }
        .platform-card:hover {
            border-color: rgba(212, 168, 83, 0.4);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .platform-card .platform-code {
            font-family: var(--font-mono);
            font-size: 14px;
            letter-spacing: 0.08em;
            color: var(--accent-gold);
            font-weight: 700;
            margin-bottom: 8px;
            display: block;
        }
        .platform-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .platform-card p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-secondary);
            margin-bottom: 0;
        }
        .platform-card .platform-summary-label {
            font-size: 13px;
            color: var(--text-muted);
            letter-spacing: 0.05em;
            text-transform: uppercase;
            margin-bottom: 8px;
            display: block;
        }

        /* ============ METHODOLOGY ============ */
        .method-item {
            display: flex;
            gap: 18px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .method-item:last-child {
            border-bottom: none;
        }
        .method-num {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: var(--accent-gold);
            line-height: 1;
            flex-shrink: 0;
            min-width: 60px;
        }
        .method-body h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .method-body p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        /* ============ DANGER PANEL ============ */
        .danger-panel {
            background: var(--danger-soft);
            border: 1px solid var(--danger);
            border-radius: var(--radius-md);
            padding: 28px;
        }
        .danger-panel h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--danger);
            margin-bottom: 14px;
        }
        .danger-panel ul {
            list-style: none;
            padding-left: 0;
            margin-bottom: 0;
        }
        .danger-panel ul li {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            padding: 8px 0;
            border-bottom: 1px solid rgba(198, 91, 78, 0.2);
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .danger-panel ul li:last-child {
            border-bottom: none;
        }
        .danger-panel .check-icon {
            color: var(--danger);
            font-weight: 700;
            flex-shrink: 0;
            line-height: 1.8;
        }

        /* ============ FAQ ============ */
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--bg-elevated);
            transition: border-color 0.2s ease;
        }
        .faq-item.active-faq {
            border-color: rgba(212, 168, 83, 0.6);
            border-left: 3px solid var(--accent-gold);
        }
        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 24px;
            background: transparent;
            border: none;
            cursor: pointer;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-primary);
            text-align: left;
            gap: 16px;
            transition: color 0.2s ease;
        }
        .faq-question:hover {
            color: var(--accent-gold);
        }
        .faq-question .faq-icon {
            font-size: 20px;
            color: var(--text-muted);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.active-faq .faq-question {
            color: var(--accent-gold);
        }
        .faq-item.active-faq .faq-icon {
            transform: rotate(180deg);
            color: var(--accent-gold);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .faq-answer-inner {
            padding: 0 24px 18px;
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-secondary);
        }
        .faq-item.active-faq .faq-answer {
            max-height: 300px;
        }

        /* ============ CTA ============ */
        .cta-section {
            background: var(--bg-subtle);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
            padding: 72px 0;
        }
        .cta-section h2 {
            font-family: var(--font-serif);
            font-size: 30px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .cta-section .cta-sub {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        @media (max-width: 575px) {
            .cta-section h2 {
                font-size: 24px;
            }
            .cta-buttons .btn-primary-gold,
            .cta-buttons .btn-secondary-outline {
                width: 100%;
            }
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: #121316;
            border-top: 1px solid var(--border-color);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border-color);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-muted);
            margin-top: 12px;
            max-width: 320px;
        }
        .site-footer h5 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .site-footer ul {
            list-style: none;
            padding-left: 0;
            margin-bottom: 0;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color 0.2s ease;
        }
        .site-footer ul li a:hover {
            color: var(--accent-gold);
        }
        .site-footer ul li {
            font-size: 14px;
            color: var(--text-muted);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
            transition: color 0.2s ease;
        }
        .footer-bottom a:hover {
            color: var(--accent-gold);
        }
        @media (max-width: 991px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 575px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        /* ============ IMAGE OVERLAY ============ */
        .img-cover-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
        }
        .img-cover-card img {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }
        .img-cover-card .img-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 16px 20px;
            background: linear-gradient(to top, rgba(23, 24, 28, 0.9), transparent);
        }
        .img-cover-card .img-overlay span {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
        }

        /* ============ SELECTION TIPS ============ */
        .tip-grid-item {
            padding: 18px;
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            transition: border-color 0.2s ease;
        }
        .tip-grid-item:hover {
            border-color: rgba(80, 168, 166, 0.5);
        }
        .tip-grid-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .tip-grid-item p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        .mb-2 { margin-bottom: 8px; }
        .mb-3 { margin-bottom: 16px; }
        .mb-4 { margin-bottom: 24px; }
        .mb-5 { margin-bottom: 32px; }
        .mt-2 { margin-top: 8px; }
        .mt-3 { margin-top: 16px; }
        .mt-4 { margin-top: 24px; }
        .mt-5 { margin-top: 32px; }
        .d-flex { display: flex; }
        .align-items-center { align-items: center; }
        .gap-2 { gap: 8px; }
        .gap-3 { gap: 16px; }
        .gap-4 { gap: 24px; }
        .flex-wrap { flex-wrap: wrap; }
        .text-center { text-align: center; }
        .w-100 { width: 100%; }

/* roulang page: category4 */
:root {
            --bg-base: #17181C;
            --bg-elevated: #1F2127;
            --bg-subtle: #26282F;
            --text-primary: #F2EFE6;
            --text-secondary: #B7B2A5;
            --text-muted: #7E7A6D;
            --accent-gold: #D4A853;
            --accent-gold-hover: #E2BB6B;
            --accent-cyan: #50A8A6;
            --accent-cyan-soft: rgba(80, 168, 166, 0.14);
            --accent-gold-soft: rgba(212, 168, 83, 0.14);
            --border-color: #3A3D45;
            --danger: #C65B4E;
            --danger-soft: rgba(198, 91, 78, 0.08);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 8px 28px rgba(0, 0, 0, 0.35);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-serif: "Noto Serif SC", "Source Han Serif SC", serif;
            --font-mono: "DIN Alternate", "SF Mono", "Consolas", monospace;
            --section-padding-desktop: 96px;
            --section-padding-tablet: 72px;
            --section-padding-mobile: 48px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-primary);
            background-color: var(--bg-base);
            overflow-x: hidden;
            padding-top: 76px;
        }

        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover {
            color: var(--accent-gold-hover);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1140px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .container-wide {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .container-narrow {
            max-width: 780px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        section {
            padding: var(--section-padding-desktop) 0;
            position: relative;
        }

        .section-label {
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-gold);
            margin-bottom: 12px;
            display: inline-block;
        }

        .section-title {
            font-family: var(--font-serif);
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 32px;
        }

        .text-gold {
            color: var(--accent-gold);
        }

        .text-cyan {
            color: var(--accent-cyan);
        }

        .text-danger {
            color: var(--danger);
        }

        .mono-num {
            font-family: var(--font-mono);
            font-size: 1.15em;
            letter-spacing: 0.02em;
        }

        /* ============ HEADER NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(23, 24, 28, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            padding: 12px 0;
            transition: box-shadow 0.2s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
        }

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

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.03em;
            color: var(--text-primary);
            white-space: nowrap;
            font-family: var(--font-sans);
        }

        .logo-text .logo-highlight {
            color: var(--accent-gold);
        }

        .logo-sub {
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--accent-gold);
            white-space: nowrap;
            display: block;
        }

        .nav-chips {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .nav-chip {
            display: inline-block;
            padding: 7px 16px;
            font-size: 14px;
            font-weight: 500;
            line-height: 1.4;
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .nav-chip:hover {
            color: var(--accent-gold);
            border-color: var(--accent-gold);
        }

        .nav-chip.active {
            background: var(--accent-gold);
            color: #1A1B1F;
            border-color: var(--accent-gold);
            font-weight: 600;
        }

        .navbar-toggler-custom {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 20px;
            padding: 6px 12px;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .navbar-toggler-custom:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
        }

        .header-cta .btn-primary-gold {
            display: inline-block;
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 600;
            line-height: 1.4;
            color: #1A1B1F;
            background: var(--accent-gold);
            border: 1px solid var(--accent-gold);
            border-radius: var(--radius-sm);
            transition: all 0.2s ease;
            white-space: nowrap;
            cursor: pointer;
        }

        .header-cta .btn-primary-gold:hover {
            background: var(--accent-gold-hover);
            border-color: var(--accent-gold-hover);
            transform: translateY(-2px);
            box-shadow: 0 2px 10px rgba(212, 168, 83, 0.35);
            color: #1A1B1F;
        }

        /* ============ HERO SECTION ============ */
        .hero-fund {
            background-image: linear-gradient(rgba(23, 24, 28, 0.88), rgba(23, 24, 28, 0.65)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center center;
            background-repeat: no-repeat;
            padding: 120px 0 80px;
            border-bottom: 1px solid var(--border-color);
        }

        .hero-fund .section-label {
            background: var(--accent-gold-soft);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 13px;
            letter-spacing: 0.06em;
            display: inline-block;
            margin-bottom: 16px;
            border: 1px solid rgba(212, 168, 83, 0.3);
        }

        .hero-fund h1 {
            font-family: var(--font-serif);
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 18px;
            max-width: 720px;
        }

        .hero-fund .hero-sub {
            font-size: 18px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 600px;
            margin-bottom: 28px;
        }

        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 12px;
        }

        .hero-stat-badge {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 10px 18px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .hero-stat-badge .mono-num {
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 18px;
        }

        /* ============ BUDGET VISUAL SECTION ============ */
        .budget-visual-section {
            background: var(--bg-base);
        }

        .budget-visual-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .donut-chart-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 36px;
        }

        .donut-chart {
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: conic-gradient(var(--accent-gold) 0% 40%,
                    var(--accent-cyan) 40% 65%,
                    #8B8578 65% 85%,
                    #4E5A5A 85% 100%);
            position: relative;
            flex-shrink: 0;
            box-shadow: 0 0 0 1px var(--border-color), var(--shadow-card);
        }

        .donut-chart::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 140px;
            height: 140px;
            border-radius: 50%;
            background: var(--bg-base);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .donut-center-label {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            z-index: 2;
            text-align: center;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        .donut-center-label .mono-num {
            display: block;
            font-size: 28px;
            color: var(--accent-gold);
            font-weight: 700;
        }

        .budget-legend {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .legend-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-primary);
        }

        .legend-dot {
            width: 12px;
            height: 12px;
            border-radius: 2px;
            flex-shrink: 0;
        }

        .legend-dot.gold {
            background: var(--accent-gold);
        }

        .legend-dot.cyan {
            background: var(--accent-cyan);
        }

        .legend-dot.gray {
            background: #8B8578;
        }

        .legend-dot.dark {
            background: #4E5A5A;
        }

        .legend-pct {
            font-family: var(--font-mono);
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-left: auto;
        }

        /* ============ PRINCIPLES AND WARNINGS ============ */
        .principles-section {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .principles-grid {
            display: grid;
            grid-template-columns: 1.3fr 0.9fr;
            gap: 36px;
        }

        .principle-cards {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .principle-card {
            background: var(--bg-subtle);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: all 0.25s ease;
        }

        .principle-card:hover {
            border-color: rgba(212, 168, 83, 0.5);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .principle-num {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 700;
            color: var(--accent-gold);
            line-height: 1;
            flex-shrink: 0;
            min-width: 48px;
        }

        .principle-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .principle-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
        }

        .warning-panel {
            background: var(--danger-soft);
            border: 1px solid var(--danger);
            border-radius: var(--radius-md);
            padding: 20px;
            margin-bottom: 16px;
        }

        .warning-panel h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--danger);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .warning-panel p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
        }

        .warning-panel .warning-icon {
            display: inline-block;
            width: 24px;
            height: 24px;
            border: 1px solid var(--danger);
            border-radius: 4px;
            text-align: center;
            line-height: 22px;
            font-size: 12px;
            color: var(--danger);
            margin-right: 8px;
            font-weight: 700;
        }

        /* ============ DEEP CONTENT ============ */
        .deep-content {
            background: var(--bg-base);
        }

        .deep-content h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 14px;
            line-height: 1.4;
            letter-spacing: 0.01em;
        }

        .deep-content p {
            font-size: 16px;
            line-height: 1.95;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }

        .deep-content .content-block {
            margin-bottom: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid var(--border-color);
        }

        .deep-content .content-block:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }

        .inline-highlight {
            background: var(--accent-gold-soft);
            padding: 2px 8px;
            border-radius: 4px;
            color: var(--accent-gold);
            font-weight: 500;
        }

        /* ============ METRICS STRIP ============ */
        .metrics-strip {
            background: var(--bg-subtle);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 48px 0;
        }

        .metrics-strip .metric-item {
            text-align: center;
            padding: 16px;
        }

        .metrics-strip .metric-num {
            font-family: var(--font-mono);
            font-size: 36px;
            font-weight: 700;
            color: var(--accent-gold);
            line-height: 1.2;
            display: block;
        }

        .metrics-strip .metric-label {
            font-size: 13px;
            color: var(--text-muted);
            letter-spacing: 0.04em;
            margin-top: 4px;
        }

        /* ============ FAQ ============ */
        .faq-section {
            background: var(--bg-base);
        }

        .faq-accordion-item {
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.2s ease;
        }

        .faq-accordion-item.active {
            border-left: 3px solid var(--accent-gold);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 18px 20px;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 16px;
            font-weight: 500;
            cursor: pointer;
            text-align: left;
            transition: color 0.2s ease;
        }

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

        .faq-item.active .faq-question {
            color: var(--accent-gold);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-secondary);
            background: var(--bg-subtle);
            margin: 0 8px 8px;
            border-radius: var(--radius-sm);
            padding-top: 16px;
        }

        /* ============ CTA ============ */
        .cta-section {
            background-image: linear-gradient(rgba(23, 24, 28, 0.85), rgba(23, 24, 28, 0.7)), url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 80px 0;
            text-align: center;
            border-top: 1px solid var(--border-color);
        }

        .cta-section .section-title {
            font-size: 32px;
            margin-bottom: 12px;
        }

        .cta-section .cta-sub {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 auto 32px;
        }

        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary-gold {
            display: inline-block;
            padding: 14px 30px;
            font-size: 16px;
            font-weight: 600;
            line-height: 1.4;
            color: #1A1B1F;
            background: var(--accent-gold);
            border: 1px solid var(--accent-gold);
            border-radius: var(--radius-sm);
            transition: all 0.2s ease;
            cursor: pointer;
            text-decoration: none;
        }

        .btn-primary-gold:hover {
            background: var(--accent-gold-hover);
            border-color: var(--accent-gold-hover);
            transform: translateY(-2px);
            box-shadow: 0 2px 10px rgba(212, 168, 83, 0.35);
            color: #1A1B1F;
        }

        .btn-outline-gold {
            display: inline-block;
            padding: 14px 30px;
            font-size: 16px;
            font-weight: 500;
            line-height: 1.4;
            color: var(--accent-gold);
            background: transparent;
            border: 1px solid var(--accent-gold);
            border-radius: var(--radius-sm);
            transition: all 0.2s ease;
            cursor: pointer;
            text-decoration: none;
        }

        .btn-outline-gold:hover {
            background: var(--accent-gold-soft);
            border-color: var(--accent-gold-hover);
            color: var(--accent-gold-hover);
            transform: translateY(-2px);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border-color);
            padding: 64px 0 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 0.8fr 0.9fr;
            gap: 32px;
            margin-bottom: 40px;
        }

        .footer-brand .logo-text {
            font-size: 20px;
            margin-bottom: 12px;
            display: block;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 0;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .footer-col ul li a {
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }

        .footer-col ul li a:hover {
            color: var(--accent-gold);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            font-size: 13px;
            color: var(--text-muted);
            align-items: center;
        }

        .footer-bottom a {
            color: var(--text-muted);
            transition: color 0.2s ease;
        }

        .footer-bottom a:hover {
            color: var(--accent-gold);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 992px) {
            .navbar-toggler-custom {
                display: block;
            }

            .nav-chips {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                background: var(--bg-elevated);
                border-radius: var(--radius-md);
                padding: 12px;
                border: 1px solid var(--border-color);
            }

            .nav-chips.open {
                display: flex;
            }

            .header-cta {
                display: block;
            }

            .budget-visual-wrap {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

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

            section {
                padding: var(--section-padding-tablet) 0;
            }

            .hero-fund {
                padding: 100px 0 60px;
            }

            .hero-fund h1 {
                font-size: 32px;
            }

            .donut-chart {
                width: 200px;
                height: 200px;
            }

            .donut-chart::after {
                width: 120px;
                height: 120px;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 64px;
                font-size: 15px;
                line-height: 1.8;
            }

            .logo-text {
                font-size: 18px;
            }

            .header-inner {
                gap: 8px;
            }

            .hero-fund h1 {
                font-size: 28px;
            }

            .hero-fund .hero-sub {
                font-size: 15px;
            }

            .section-title {
                font-size: 24px;
            }

            .section-desc {
                font-size: 15px;
            }

            section {
                padding: var(--section-padding-mobile) 0;
            }

            .budget-visual-wrap {
                gap: 20px;
            }

            .donut-chart-wrap {
                flex-direction: column;
                gap: 20px;
            }

            .donut-chart {
                width: 180px;
                height: 180px;
            }

            .donut-chart::after {
                width: 105px;
                height: 105px;
            }

            .principles-grid {
                gap: 16px;
            }

            .principle-card {
                padding: 16px 18px;
                flex-direction: column;
                gap: 8px;
            }

            .principle-num {
                font-size: 22px;
            }

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

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .cta-section {
                padding: 56px 0;
            }

            .cta-section .section-title {
                font-size: 26px;
            }

            .cta-buttons {
                flex-direction: column;
                gap: 12px;
            }

            .btn-primary-gold,
            .btn-outline-gold {
                width: 100%;
                text-align: center;
                padding: 12px 20px;
                font-size: 15px;
            }

            .metrics-strip .metric-num {
                font-size: 28px;
            }

            .hero-stats-row {
                flex-direction: column;
                gap: 8px;
            }

            .deep-content h3 {
                font-size: 18px;
            }

            .deep-content p {
                font-size: 15px;
            }

            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
        }

        @media (max-width: 520px) {
            .logo-text {
                font-size: 17px;
            }

            .logo-sub {
                font-size: 10px;
            }

            .header-cta .btn-primary-gold {
                padding: 8px 14px;
                font-size: 12px;
            }

            .hero-fund h1 {
                font-size: 24px;
            }

            .donut-chart {
                width: 150px;
                height: 150px;
            }

            .donut-chart::after {
                width: 90px;
                height: 90px;
            }

            .donut-center-label .mono-num {
                font-size: 22px;
            }

            .section-title {
                font-size: 20px;
            }

            .principle-content h3 {
                font-size: 16px;
            }

            .warning-panel h3 {
                font-size: 14px;
            }
        }

/* roulang page: category6 */
:root {
 --bg-base: #17181C;
 --bg-elevated: #1F2127;
 --bg-subtle: #26282F;
 --text-primary: #F2EFE6;
 --text-secondary: #B7B2A5;
 --text-muted: #7E7A6D;
 --accent-gold: #D4A853;
 --accent-gold-hover: #E2BB6B;
 --accent-cyan: #50A8A6;
 --accent-cyan-soft: rgba(80, 168, 166, 0.14);
 --accent-gold-soft: rgba(212, 168, 83, 0.14);
 --border-color: #3A3D45;
 --danger: #C65B4E;
 --danger-soft: rgba(198, 91, 78, 0.08);
 --radius-sm: 4px;
 --radius-md: 8px;
 --radius-lg: 12px;
 --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.25);
 --shadow-card-hover: 0 8px 28px rgba(0, 0, 0, 0.35);
 --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
 --font-serif: "Noto Serif SC", "Source Han Serif SC", serif;
 --font-mono: "DIN Alternate", "SF Mono", "Consolas", monospace;
 --section-padding-desktop: 96px;
 --section-padding-tablet: 72px;
 --section-padding-mobile: 48px;
 }
 html {
 scroll-behavior: smooth;
 -webkit-font-smoothing: antialiased;
 -moz-osx-font-smoothing: grayscale;
 }
 body {
 font-family: var(--font-sans);
 font-size: 17px;
 line-height: 1.9;
 color: var(--text-primary);
 background-color: var(--bg-base);
 overflow-x: hidden;
 padding-top: 72px;
 }
 a {
 color: var(--accent-gold);
 text-decoration: none;
 transition: color 0.2s ease;
 }
 a:hover {
 color: var(--accent-gold-hover);
 text-decoration: none;
 }
 a:focus-visible,
 button:focus-visible,
 input:focus-visible {
 outline: 2px solid var(--accent-cyan);
 outline-offset: 2px;
 }
 img {
 max-width: 100%;
 height: auto;
 display: block;
 }
 .container {
 max-width: 1140px;
 margin: 0 auto;
 padding-left: 20px;
 padding-right: 20px;
 }
 .container-wide {
 max-width: 1200px;
 margin: 0 auto;
 padding-left: 20px;
 padding-right: 20px;
 }
 .container-narrow {
 max-width: 780px;
 margin: 0 auto;
 padding-left: 20px;
 padding-right: 20px;
 }
 section {
 padding: var(--section-padding-desktop) 0;
 position: relative;
 }
 .section-label {
 font-size: 13px;
 font-weight: 500;
 letter-spacing: 0.08em;
 text-transform: uppercase;
 color: var(--accent-gold);
 margin-bottom: 12px;
 display: inline-block;
 }
 .section-title {
 font-family: var(--font-serif);
 font-size: 30px;
 font-weight: 700;
 line-height: 1.3;
 letter-spacing: 0.02em;
 color: var(--text-primary);
 margin-bottom: 16px;
 }
 .section-desc {
 font-size: 17px;
 line-height: 1.9;
 color: var(--text-secondary);
 max-width: 720px;
 margin-bottom: 32px;
 }
 .text-gold {
 color: var(--accent-gold);
 }
 .text-cyan {
 color: var(--accent-cyan);
 }
 /* ============ HEADER NAV ============ */
 .site-header {
 position: fixed;
 top: 0;
 left: 0;
 right: 0;
 z-index: 1000;
 background: rgba(23, 24, 28, 0.92);
 backdrop-filter: blur(12px);
 -webkit-backdrop-filter: blur(12px);
 border-bottom: 1px solid var(--border-color);
 padding: 12px 0;
 transition: box-shadow 0.2s ease;
 }
 .site-header.scrolled {
 box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
 }
 .header-inner {
 display: flex;
 align-items: center;
 justify-content: space-between;
 flex-wrap: wrap;
 gap: 12px;
 }
 .logo-area {
 display: flex;
 align-items: center;
 gap: 10px;
 flex-shrink: 0;
 }
 .logo-text {
 font-size: 22px;
 font-weight: 700;
 letter-spacing: 0.03em;
 color: var(--text-primary);
 white-space: nowrap;
 }
 .logo-text .logo-highlight {
 color: var(--accent-gold);
 }
 .logo-sub {
 font-size: 12px;
 font-weight: 500;
 letter-spacing: 0.12em;
 text-transform: uppercase;
 color: var(--accent-gold);
 white-space: nowrap;
 }
 .nav-chips {
 display: flex;
 align-items: center;
 flex-wrap: wrap;
 gap: 8px;
 }
 .nav-chip {
 display: inline-block;
 padding: 7px 16px;
 font-size: 14px;
 font-weight: 500;
 line-height: 1.4;
 color: var(--text-secondary);
 background: transparent;
 border: 1px solid var(--border-color);
 border-radius: var(--radius-sm);
 transition: all 0.2s ease;
 white-space: nowrap;
 }
 .nav-chip:hover {
 color: var(--accent-gold);
 border-color: var(--accent-gold);
 }
 .nav-chip.active {
 color: var(--bg-base);
 background: var(--accent-gold);
 border-color: var(--accent-gold);
 }
 .header-cta {
 flex-shrink: 0;
 }
 .btn-primary-gold {
 display: inline-block;
 padding: 10px 22px;
 font-size: 15px;
 font-weight: 600;
 line-height: 1.5;
 color: var(--bg-base);
 background: var(--accent-gold);
 border: 1px solid var(--accent-gold);
 border-radius: var(--radius-sm);
 box-shadow: 0 2px 10px rgba(212, 168, 83, 0.35);
 transition: all 0.2s ease;
 }
 .btn-primary-gold:hover {
 background: var(--accent-gold-hover);
 border-color: var(--accent-gold-hover);
 color: var(--bg-base);
 box-shadow: 0 4px 14px rgba(212, 168, 83, 0.45);
 transform: translateY(-1px);
 }
 .btn-outline-gold {
 display: inline-block;
 padding: 10px 22px;
 font-size: 15px;
 font-weight: 600;
 line-height: 1.5;
 color: var(--accent-gold);
 background: transparent;
 border: 1px solid var(--accent-gold);
 border-radius: var(--radius-sm);
 transition: all 0.2s ease;
 }
 .btn-outline-gold:hover {
 color: var(--bg-base);
 background: var(--accent-gold);
 border-color: var(--accent-gold);
 }
 .navbar-toggler-custom {
 display: none;
 background: transparent;
 border: 1px solid var(--border-color);
 color: var(--text-primary);
 font-size: 22px;
 padding: 6px 12px;
 border-radius: var(--radius-sm);
 cursor: pointer;
 transition: all 0.2s ease;
 }
 .navbar-toggler-custom:hover {
 border-color: var(--accent-gold);
 color: var(--accent-gold);
 }
 /* ============ 分类页6 特有样式 ============ */
 .warning-hero {
 background: linear-gradient(180deg, rgba(23,24,28,0.95) 0%, rgba(23,24,28,0.75) 55%, rgba(23,24,28,0.92) 100%), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
 min-height: 420px;
 display: flex;
 align-items: center;
 padding: var(--section-padding-desktop) 0 80px;
 border-bottom: 1px solid rgba(198, 91, 78, 0.25);
 position: relative;
 overflow: hidden;
 }
 .warning-hero::after {
 content: '';
 position: absolute;
 bottom: 0;
 left: 0;
 right: 0;
 height: 4px;
 background: linear-gradient(90deg, var(--danger), var(--danger) 20%, rgba(198,91,78,0.4) 50%, var(--danger) 80%, var(--danger));
 }
 .danger-badge {
 display: inline-block;
 padding: 8px 18px;
 font-size: 13px;
 font-weight: 600;
 letter-spacing: 0.08em;
 color: var(--danger);
 background: var(--danger-soft);
 border: 1px solid var(--danger);
 border-radius: var(--radius-sm);
 margin-bottom: 20px;
 }
 .warning-hero h1 {
 font-size: 40px;
 font-weight: 700;
 line-height: 1.25;
 letter-spacing: 0.02em;
 color: var(--text-primary);
 margin-bottom: 16px;
 font-family: var(--font-serif);
 }
 .warning-hero .subtitle {
 font-size: 18px;
 line-height: 1.8;
 color: var(--text-secondary);
 max-width: 720px;
 }
 .case-card {
 background: var(--bg-elevated);
 border: 1px solid var(--border-color);
 border-radius: var(--radius-md);
 box-shadow: var(--shadow-card);
 padding: 28px 32px;
 margin-bottom: 24px;
 transition: all 0.25s ease;
 position: relative;
 overflow: hidden;
 }
 .case-card:hover {
 box-shadow: var(--shadow-card-hover);
 border-color: rgba(198, 91, 78, 0.45);
 transform: translateY(-4px);
 }
 .case-card .case-number {
 font-family: var(--font-mono);
 font-size: 56px;
 font-weight: 700;
 line-height: 1;
 color: transparent;
 -webkit-text-stroke: 1.5px var(--danger);
 margin-bottom: 12px;
 display: block;
 }
 .case-card h3 {
 font-size: 20px;
 font-weight: 600;
 line-height: 1.4;
 color: var(--text-primary);
 margin-bottom: 12px;
 }
 .case-card p {
 font-size: 15px;
 line-height: 1.9;
 color: var(--text-secondary);
 margin-bottom: 16px;
 }
 .case-card .tactics {
 border-top: 1px dashed var(--border-color);
 padding-top: 16px;
 }
 .case-card .tactics span {
 display: inline-block;
 font-size: 13px;
 font-weight: 500;
 color: var(--text-secondary);
 background: var(--danger-soft);
 border-radius: var(--radius-sm);
 padding: 4px 10px;
 margin-right: 8px;
 margin-bottom: 6px;
 }
 .case-card .tactics strong {
 color: var(--danger);
 font-weight: 600;
 font-size: 13px;
 margin-right: 8px;
 }
 .checklist-panel {
 background: var(--bg-subtle);
 border: 1px solid var(--border-color);
 border-radius: var(--radius-lg);
 padding: 40px;
 margin-top: 48px;
 }
 .checklist-panel h2 {
 font-size: 24px;
 font-weight: 700;
 color: var(--text-primary);
 margin-bottom: 24px;
 }
 .checklist-item {
 display: flex;
 align-items: flex-start;
 gap: 16px;
 padding: 14px 0;
 border-bottom: 1px solid var(--border-color);
 transition: all 0.2s ease;
 }
 .checklist-item:last-child {
 border-bottom: none;
 }
 .checklist-item:hover {
 padding-left: 8px;
 }
 .checklist-icon {
 flex-shrink: 0;
 width: 24px;
 height: 24px;
 border: 1.5px solid var(--accent-gold);
 border-radius: var(--radius-sm);
 display: flex;
 align-items: center;
 justify-content: center;
 font-size: 13px;
 color: var(--accent-gold);
 transition: all 0.2s ease;
 background: transparent;
 }
 .checklist-item:hover .checklist-icon {
 background: var(--accent-gold);
 color: var(--bg-base);
 border-color: var(--accent-gold);
 }
 .checklist-item:nth-child(even) .checklist-icon {
 border-color: var(--accent-cyan);
 color: var(--accent-cyan);
 }
 .checklist-item:nth-child(even):hover .checklist-icon {
 background: var(--accent-cyan);
 color: var(--bg-base);
 border-color: var(--accent-cyan);
 }
 .checklist-item p {
 font-size: 15px;
 line-height: 1.8;
 color: var(--text-primary);
 margin-bottom: 0;
 font-weight: 500;
 }
 .checklist-item p small {
 display: block;
 color: var(--text-muted);
 font-weight: 400;
 font-size: 14px;
 margin-top: 4px;
 }
 .guide-content {
 font-size: 17px;
 line-height: 1.9;
 color: var(--text-secondary);
 }
 .guide-content h2 {
 font-size: 24px;
 font-weight: 700;
 color: var(--text-primary);
 margin-top: 40px;
 margin-bottom: 16px;
 }
 .guide-content p {
 margin-bottom: 16px;
 }
 .guide-content .highlight {
 color: var(--accent-gold);
 font-weight: 500;
 }
 .cover-img-wrapper {
 border-radius: var(--radius-md);
 overflow: hidden;
 border: 1px solid var(--border-color);
 box-shadow: var(--shadow-card);
 }
 .cover-img-wrapper img {
 width: 100%;
 height: auto;
 object-fit: cover;
 }
 /* ============ FOOTER ============ */
 .site-footer {
 background: var(--bg-elevated);
 border-top: 1px solid var(--border-color);
 padding: 64px 0 32px;
 }
 .footer-grid {
 display: grid;
 grid-template-columns: 2fr 1fr 1fr 1.2fr;
 gap: 32px;
 margin-bottom: 48px;
 }
 .footer-brand .logo-text {
 font-size: 20px;
 display: block;
 margin-bottom: 12px;
 }
 .footer-brand p {
 font-size: 14px;
 line-height: 1.8;
 color: var(--text-muted);
 margin-bottom: 0;
 }
 .footer-col h5 {
 font-size: 15px;
 font-weight: 600;
 color: var(--text-primary);
 margin-bottom: 16px;
 }
 .footer-col ul {
 list-style: none;
 padding: 0;
 margin: 0;
 }
 .footer-col ul li {
 margin-bottom: 10px;
 }
 .footer-col ul li a {
 font-size: 14px;
 color: var(--text-muted);
 transition: color 0.2s ease;
 }
 .footer-col ul li a:hover {
 color: var(--accent-gold);
 }
 .footer-bottom {
 border-top: 1px solid var(--border-color);
 padding-top: 24px;
 display: flex;
 flex-wrap: wrap;
 gap: 12px 24px;
 align-items: center;
 font-size: 13px;
 color: var(--text-muted);
 }
 .footer-bottom a {
 font-size: 13px;
 color: var(--text-muted);
 }
 .footer-bottom a:hover {
 color: var(--accent-gold);
 }
 /* ============ RESPONSIVE ============ */
 @media (max-width: 1199px) {
 .container { max-width: 960px; }
 }
 @media (max-width: 991px) {
 .navbar-toggler-custom { display: inline-block; }
 .nav-chips {
 display: none;
 position: absolute;
 top: 100%;
 left: 0;
 right: 0;
 background: var(--bg-elevated);
 flex-direction: column;
 align-items: flex-start;
 padding: 16px 20px;
 border-bottom: 1px solid var(--border-color);
 box-shadow: var(--shadow-card-hover);
 gap: 6px;
 }
 .nav-chips.open { display: flex; }
 .nav-chip { width: 100%; }
 .header-cta { margin-left: auto; }
 .footer-grid { grid-template-columns: 1fr 1fr; }
 }
 @media (max-width: 767px) {
 section { padding: var(--section-padding-mobile) 0; }
 body { padding-top: 64px; }
 .warning-hero { min-height: 360px; padding-top: 56px; }
 .warning-hero h1 { font-size: 32px; }
 .case-card { padding: 20px 18px; }
 .case-card .case-number { font-size: 44px; }
 .checklist-panel { padding: 24px 18px; }
 .footer-grid { grid-template-columns: 1fr; gap: 24px; }
 .footer-bottom { flex-direction: column; align-items: flex-start; }
 .section-title { font-size: 24px; }
 }
 @media (max-width: 575px) {
 body { font-size: 15px; line-height: 1.8; }
 .logo-text { font-size: 18px; }
 .warning-hero h1 { font-size: 28px; }
 .warning-hero .subtitle { font-size: 15px; }
 .btn-primary-gold, .btn-outline-gold { display: block; width: 100%; text-align: center; margin-bottom: 8px; }
 .case-card .tactics span { font-size: 12px; }
 .checklist-item p { font-size: 14px; }
 .checklist-item p small { font-size: 13px; }
 }

/* roulang page: category7 */
:root {
            --bg-base: #17181C;
            --bg-elevated: #1F2127;
            --bg-subtle: #26282F;
            --text-primary: #F2EFE6;
            --text-secondary: #B7B2A5;
            --text-muted: #7E7A6D;
            --accent-gold: #D4A853;
            --accent-gold-hover: #E2BB6B;
            --accent-cyan: #50A8A6;
            --accent-cyan-soft: rgba(80, 168, 166, 0.14);
            --accent-gold-soft: rgba(212, 168, 83, 0.14);
            --border-color: #3A3D45;
            --danger: #C65B4E;
            --danger-soft: rgba(198, 91, 78, 0.08);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 8px 28px rgba(0, 0, 0, 0.35);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-serif: "Noto Serif SC", "Source Han Serif SC", serif;
            --font-mono: "DIN Alternate", "SF Mono", "Consolas", monospace;
            --section-padding-desktop: 96px;
            --section-padding-tablet: 72px;
            --section-padding-mobile: 48px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-primary);
            background-color: var(--bg-base);
            overflow-x: hidden;
            padding-top: 72px;
        }

        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--accent-gold-hover);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1140px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .container-wide {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .container-narrow {
            max-width: 780px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        section {
            padding: var(--section-padding-desktop) 0;
            position: relative;
        }

        .section-label {
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-gold);
            margin-bottom: 12px;
            display: inline-block;
        }
        .section-title {
            font-family: var(--font-serif);
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 32px;
        }
        .text-gold {
            color: var(--accent-gold);
        }
        .text-cyan {
            color: var(--accent-cyan);
        }
        .text-muted {
            color: var(--text-muted);
        }

        /* ============ HEADER NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(23, 24, 28, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            padding: 12px 0;
            transition: box-shadow 0.2s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.03em;
            color: var(--text-primary);
            white-space: nowrap;
        }
        .logo-text .logo-highlight {
            color: var(--accent-gold);
        }
        .logo-sub {
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--accent-gold);
            white-space: nowrap;
        }
        .nav-chips {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        .nav-chip {
            display: inline-block;
            padding: 7px 16px;
            font-size: 14px;
            font-weight: 500;
            line-height: 1.4;
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .nav-chip:hover {
            color: var(--accent-gold);
            border-color: var(--accent-gold);
            background: var(--accent-gold-soft);
        }
        .nav-chip.active {
            color: var(--bg-base);
            background: var(--accent-gold);
            border-color: var(--accent-gold);
            font-weight: 600;
        }
        .header-cta {
            flex-shrink: 0;
        }
        .btn-primary-gold {
            display: inline-block;
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--bg-base);
            background: var(--accent-gold);
            border: 1px solid var(--accent-gold);
            border-radius: var(--radius-sm);
            box-shadow: 0 2px 10px rgba(212, 168, 83, 0.35);
            transition: all 0.2s ease;
            white-space: nowrap;
            cursor: pointer;
        }
        .btn-primary-gold:hover {
            color: var(--bg-base);
            background: var(--accent-gold-hover);
            border-color: var(--accent-gold-hover);
            box-shadow: 0 4px 18px rgba(212, 168, 83, 0.5);
            transform: translateY(-1px);
        }
        .btn-outline-gold {
            display: inline-block;
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--accent-gold);
            background: transparent;
            border: 1px solid var(--accent-gold);
            border-radius: var(--radius-sm);
            transition: all 0.2s ease;
            white-space: nowrap;
            cursor: pointer;
        }
        .btn-outline-gold:hover {
            color: var(--bg-base);
            background: var(--accent-gold);
            border-color: var(--accent-gold);
            transform: translateY(-1px);
        }
        .navbar-toggler-custom {
            display: none;
            background: none;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 20px;
            padding: 6px 12px;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .navbar-toggler-custom:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
        }

        /* ============ HERO ============ */
        .page-hero {
            background: linear-gradient(rgba(23, 24, 28, 0.88), rgba(23, 24, 28, 0.72)), url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            padding: 60px 0 48px;
            border-bottom: 1px solid var(--border-color);
        }
        .page-hero h1 {
            font-family: var(--font-serif);
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .page-hero .hero-sub {
            font-size: 18px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 720px;
        }
        .hero-badge {
            display: inline-block;
            padding: 4px 14px;
            font-size: 13px;
            font-weight: 500;
            color: var(--accent-gold);
            background: var(--accent-gold-soft);
            border: 1px solid rgba(212, 168, 83, 0.3);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
        }

        /* ============ 今日焦点 ============ */
        .focus-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            min-height: 360px;
            display: flex;
            align-items: flex-end;
            border: 1px solid var(--border-color);
        }
        .focus-card .focus-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            z-index: 0;
        }
        .focus-card .focus-bg::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(23, 24, 28, 0.15) 0%, rgba(23, 24, 28, 0.65) 45%, rgba(23, 24, 28, 0.92) 100%);
        }
        .focus-card .focus-content {
            position: relative;
            z-index: 1;
            padding: 32px;
            width: 100%;
        }
        .focus-card .focus-date {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--accent-gold);
            margin-bottom: 8px;
            letter-spacing: 0.04em;
        }
        .focus-card .focus-title {
            font-family: var(--font-serif);
            font-size: 26px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-primary);
            margin-bottom: 12px;
            max-width: 560px;
        }
        .focus-card .focus-summary {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 560px;
        }

        /* ============ 资讯列表 ============ */
        .news-list-item {
            padding: 24px 0;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            gap: 20px;
            align-items: flex-start;
            transition: all 0.2s ease;
        }
        .news-list-item:hover {
            border-bottom-color: var(--accent-gold);
        }
        .news-list-item .news-date {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 500;
            color: var(--accent-gold);
            white-space: nowrap;
            padding-top: 4px;
            min-width: 90px;
            border-right: 1px solid var(--accent-gold);
            padding-right: 16px;
            text-align: right;
            letter-spacing: 0.03em;
        }
        .news-list-item .news-body {
            flex: 1;
        }
        .news-list-item .news-title {
            font-size: 19px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text-primary);
            margin-bottom: 8px;
            display: block;
            transition: color 0.2s ease;
        }
        .news-list-item .news-title:hover {
            color: var(--accent-gold);
        }
        .news-list-item .news-summary {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 10px;
        }
        .news-list-item .btn-outline-gold {
            padding: 6px 16px;
            font-size: 13px;
        }

        /* ============ 专题回顾 ============ */
        .topic-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .topic-chip {
            display: inline-block;
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 500;
            line-height: 1.4;
            color: var(--text-secondary);
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .topic-chip:hover {
            color: var(--accent-gold);
            border-color: var(--accent-gold);
            background: var(--accent-gold-soft);
            transform: translateY(-2px);
        }

        /* ============ 深度内容 ============ */
        .article-deep {
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 36px;
        }
        .article-deep h2 {
            font-family: var(--font-serif);
            font-size: 24px;
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .article-deep h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text-primary);
            margin: 24px 0 10px;
        }
        .article-deep p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }

        /* ============ 数据快照 ============ */
        .snapshot-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .snapshot-card {
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: all 0.2s ease;
        }
        .snapshot-card:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .snapshot-card .snapshot-number {
            font-family: var(--font-mono);
            font-size: 34px;
            font-weight: 700;
            color: var(--accent-gold);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }
        .snapshot-card .snapshot-label {
            font-size: 14px;
            font-weight: 500;
            line-height: 1.5;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .snapshot-card .snapshot-desc {
            font-size: 13px;
            line-height: 1.6;
            color: var(--text-muted);
        }

        /* ============ FAQ ============ */
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--bg-elevated);
            transition: all 0.2s ease;
        }
        .faq-item:hover {
            border-color: var(--accent-gold);
        }
        .faq-question {
            display: block;
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            padding: 16px 20px;
            font-family: var(--font-sans);
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text-primary);
            cursor: pointer;
            transition: all 0.2s ease;
            position: relative;
            padding-left: 24px;
        }
        .faq-question::before {
            content: "";
            position: absolute;
            left: 0;
            top: 16px;
            bottom: 16px;
            width: 3px;
            background: var(--accent-gold);
            border-radius: 0 2px 2px 0;
            opacity: 0;
            transition: opacity 0.2s ease;
        }
        .faq-item.active .faq-question::before,
        .faq-question:hover::before {
            opacity: 1;
        }
        .faq-question:hover {
            color: var(--accent-gold);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 20px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
        }
        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 20px 16px;
        }
        .faq-item.active .faq-question {
            color: var(--accent-gold);
        }

        /* ============ CTA ============ */
        .cta-section {
            background: linear-gradient(rgba(23, 24, 28, 0.85), rgba(23, 24, 28, 0.7)), url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;
            padding: 64px 0;
            text-align: center;
            border-top: 1px solid var(--border-color);
        }
        .cta-section h2 {
            font-family: var(--font-serif);
            font-size: 30px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .cta-section .cta-sub {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 28px;
        }
        .cta-section .btn-group {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 28px;
        }
        .footer-brand .logo-text {
            font-size: 20px;
            margin-bottom: 10px;
            display: inline-block;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            line-height: 1.6;
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }
        .footer-col ul li a:hover {
            color: var(--accent-gold);
        }
        .footer-col ul li {
            font-size: 14px;
            line-height: 1.6;
            color: var(--text-secondary);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            font-size: 13px;
            line-height: 1.6;
            color: var(--text-muted);
            align-items: center;
        }
        .footer-bottom a {
            color: var(--text-muted);
            transition: color 0.2s ease;
        }
        .footer-bottom a:hover {
            color: var(--accent-gold);
        }

        /* ============ 响应式 ============ */
        @media (max-width: 992px) {
            .navbar-toggler-custom {
                display: block;
            }
            .nav-chips {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
                padding-top: 10px;
                border-top: 1px solid var(--border-color);
                margin-top: 10px;
            }
            .nav-chips.open {
                display: flex;
            }
            .nav-chip {
                display: block;
                width: 100%;
                padding: 10px 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .snapshot-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 62px;
            }
            section {
                padding: var(--section-padding-tablet) 0;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .page-hero .hero-sub {
                font-size: 16px;
            }
            .section-title {
                font-size: 24px;
            }
            .section-desc {
                font-size: 15px;
            }
            .focus-card {
                min-height: 280px;
            }
            .focus-card .focus-content {
                padding: 22px;
            }
            .focus-card .focus-title {
                font-size: 21px;
            }
            .news-list-item {
                flex-direction: column;
                gap: 10px;
            }
            .news-list-item .news-date {
                border-right: none;
                padding-right: 0;
                text-align: left;
                min-width: auto;
                padding-top: 0;
            }
            .article-deep {
                padding: 22px;
            }
            .article-deep h2 {
                font-size: 21px;
            }
            .cta-section h2 {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .snapshot-grid {
                grid-template-columns: 1fr;
            }
            .header-cta {
                margin-left: auto;
            }
        }

        @media (max-width: 576px) {
            body {
                font-size: 15px;
                line-height: 1.8;
                padding-top: 58px;
            }
            section {
                padding: var(--section-padding-mobile) 0;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero .hero-sub {
                font-size: 14px;
            }
            .section-title {
                font-size: 21px;
            }
            .section-desc {
                font-size: 14px;
            }
            .focus-card {
                min-height: 240px;
            }
            .focus-card .focus-content {
                padding: 18px;
            }
            .focus-card .focus-title {
                font-size: 18px;
            }
            .focus-card .focus-summary {
                font-size: 13px;
            }
            .news-list-item .news-title {
                font-size: 17px;
            }
            .news-list-item .news-summary {
                font-size: 13px;
            }
            .article-deep {
                padding: 16px;
            }
            .article-deep h2 {
                font-size: 19px;
            }
            .article-deep h3 {
                font-size: 16px;
            }
            .article-deep p {
                font-size: 14px;
            }
            .cta-section h2 {
                font-size: 20px;
            }
            .cta-section .cta-sub {
                font-size: 14px;
            }
            .btn-primary-gold,
            .btn-outline-gold {
                display: block;
                width: 100%;
                text-align: center;
                padding: 12px 18px;
                font-size: 14px;
            }
            .cta-section .btn-group {
                flex-direction: column;
                align-items: stretch;
            }
            .logo-text {
                font-size: 18px;
            }
            .logo-sub {
                font-size: 10px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }