/* roulang page: index */
:root {
            --color-ink: #1A1714;
            --color-amber: #F5A524;
            --color-amber-dark: #D98E1F;
            --color-spider: #2A2622;
            --color-paper: #FAF8F5;
            --color-moss: #5E7A6A;
            --color-alert: #C7432E;
            --color-border: #E5DFD7;
            --color-card: #FFFFFF;
            --shadow-card: rgba(26, 23, 20, 0.06) 0 8px 28px;
            --shadow-card-hover: rgba(26, 23, 20, 0.12) 0 14px 36px;
            --radius-card: 12px;
            --radius-pill: 999px;
            --radius-img: 8px;
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STSong', 'SimSun', serif;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Helvetica Neue', Arial, sans-serif;
            --font-mono: 'SFMono-Regular', 'Menlo', 'Consolas', 'Liberation Mono', monospace;
            --section-padding: clamp(40px, 6vw, 72px);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-paper);
            color: var(--color-ink);
            line-height: 1.8;
            letter-spacing: 0.01em;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-serif);
            font-weight: 700;
            color: var(--color-ink);
            line-height: 1.35;
            letter-spacing: 0.02em;
            margin-top: 0;
        }

        h1 {
            font-size: clamp(1.9rem, 4vw, 3.2rem);
            font-weight: 800;
        }

        h2 {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            margin-bottom: 1rem;
        }

        h3 {
            font-size: clamp(1.15rem, 2vw, 1.45rem);
        }

        p {
            margin-bottom: 1.2em;
            color: rgba(26, 23, 20, 0.85);
        }

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

        a:hover {
            color: var(--color-amber-dark);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }

        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--color-amber);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Header / Nav */
        .site-header {
            background-color: #fff;
            border-bottom: 2px solid var(--color-ink);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(26, 23, 20, 0.04);
        }

        .header-inner {
            padding: 12px 0 10px;
        }

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

        .logo-brand {
            font-family: var(--font-serif);
            font-size: 1.65rem;
            font-weight: 800;
            color: var(--color-ink);
            letter-spacing: 0.03em;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .logo-brand:hover {
            color: var(--color-ink);
        }

        .logo-brand .logo-dot {
            width: 10px;
            height: 10px;
            background: var(--color-amber);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 0 3px rgba(245, 165, 36, 0.2);
            margin-right: 2px;
        }

        .btn-amber {
            background-color: var(--color-amber);
            color: var(--color-ink);
            border: none;
            border-radius: var(--radius-pill);
            padding: 10px 22px;
            font-weight: 700;
            font-size: 0.95rem;
            line-height: 1.4;
            cursor: pointer;
            transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .btn-amber:hover {
            background-color: var(--color-amber-dark);
            color: var(--color-ink);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(245, 165, 36, 0.28);
        }

        .btn-amber:active {
            transform: translateY(0);
            box-shadow: inset 0 2px 4px rgba(26, 23, 20, 0.2);
        }

        .btn-outline-ink {
            background-color: transparent;
            color: var(--color-ink);
            border: 1.5px solid var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 9px 22px;
            font-weight: 700;
            font-size: 0.95rem;
            line-height: 1.4;
            cursor: pointer;
            transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .btn-outline-ink:hover {
            background-color: var(--color-ink);
            color: #fff;
            border-color: var(--color-ink);
        }

        .chip-nav {
            display: flex;
            flex-wrap: nowrap;
            gap: 6px;
            overflow-x: auto;
            overflow-y: hidden;
            padding: 6px 0 2px;
            scrollbar-width: thin;
            scrollbar-color: var(--color-border) transparent;
            -webkit-overflow-scrolling: touch;
        }

        .chip-nav::-webkit-scrollbar {
            height: 4px;
        }

        .chip-nav::-webkit-scrollbar-thumb {
            background: var(--color-border);
            border-radius: 4px;
        }

        .chip-nav a {
            flex: 0 0 auto;
            border: 1.5px solid var(--color-ink);
            background-color: transparent;
            color: var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
            white-space: nowrap;
        }

        .chip-nav a:hover {
            border-color: var(--color-amber);
            background-color: rgba(245, 165, 36, 0.08);
            color: var(--color-amber-dark);
            transform: translateY(-1px);
        }

        .chip-nav a.active {
            background-color: var(--color-amber);
            border-color: var(--color-amber);
            color: var(--color-ink);
        }

        /* Hero */
        .hero-section {
            background-color: var(--color-ink);
            background-image: linear-gradient(rgba(26, 23, 20, 0.88), rgba(26, 23, 20, 0.92)), url('/assets/images/8c5914374eba7997.webp');
            background-size: cover;
            background-position: center;
            color: #f5f0e8;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(circle at 30% 40%, rgba(245, 165, 36, 0.12) 0%, transparent 55%);
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            padding-top: clamp(40px, 7vw, 80px);
            padding-bottom: clamp(40px, 7vw, 80px);
        }

        .hero-h1 {
            color: #fff;
            margin-bottom: 0.7em;
            letter-spacing: 0.03em;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
        }

        .hero-subtitle {
            color: rgba(250, 248, 245, 0.88);
            font-size: clamp(0.98rem, 1.5vw, 1.12rem);
            line-height: 1.9;
            margin-bottom: 1.8rem;
            max-width: 720px;
        }

        .hero-reward-panel {
            background: rgba(42, 38, 34, 0.7);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(245, 165, 36, 0.35);
            border-radius: var(--radius-card);
            padding: clamp(20px, 3vw, 32px);
        }

        .hero-reward-panel .reward-title {
            color: var(--color-amber);
            font-size: 0.9rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 0.8rem;
        }

        .reward-tier-list {
            list-style: none;
            padding: 0;
            margin: 0 0 1rem 0;
        }

        .reward-tier-list li {
            padding: 5px 0;
            color: rgba(250, 248, 245, 0.92);
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .reward-tier-list li::before {
            content: '';
            width: 6px;
            height: 6px;
            background: var(--color-amber);
            border-radius: 50%;
            flex-shrink: 0;
        }

        .progress-wrap {
            margin: 12px 0 16px;
        }

        .progress-label {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: rgba(250, 248, 245, 0.8);
            margin-bottom: 6px;
        }

        .progress {
            height: 10px;
            background-color: rgba(250, 248, 245, 0.12);
            border-radius: var(--radius-pill);
            overflow: hidden;
        }

        .progress-bar {
            background: linear-gradient(90deg, var(--color-amber), var(--color-amber-dark));
            border-radius: var(--radius-pill);
            transition: width 0.6s ease;
        }

        .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 8px;
        }

        .hero-cta-row .btn-amber {
            font-size: 1rem;
            padding: 12px 28px;
        }

        .hero-cta-row .btn-hero-dark {
            background: transparent;
            border: 1.5px solid rgba(250, 248, 245, 0.6);
            color: #f5f0e8;
            border-radius: var(--radius-pill);
            padding: 11px 24px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
        }

        .hero-cta-row .btn-hero-dark:hover {
            background: rgba(250, 248, 245, 0.1);
            border-color: #fff;
            color: #fff;
        }

        /* Sections base */
        .site-section {
            padding-top: var(--section-padding);
            padding-bottom: var(--section-padding);
            position: relative;
        }

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

        .section-bg-white {
            background-color: #fff;
        }

        .section-bg-spider {
            background-color: var(--color-spider);
            color: #f5f0e8;
        }

        .section-bg-spider h2,
        .section-bg-spider h3 {
            color: #fff;
        }

        .section-bg-spider p {
            color: rgba(250, 248, 245, 0.85);
        }

        .section-bg-spider .text-muted-light {
            color: rgba(250, 248, 245, 0.65);
        }

        .section-eyebrow {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--color-moss);
            margin-bottom: 0.6rem;
        }

        .section-eyebrow.eyebrow-amber {
            color: var(--color-amber);
        }

        .section-lead {
            font-size: 1.02rem;
            color: rgba(26, 23, 20, 0.8);
            max-width: 760px;
            margin-bottom: 1.5rem;
        }

        .section-bg-spider .section-lead {
            color: rgba(250, 248, 245, 0.85);
        }

        /* Cards */
        .custom-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px 22px;
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
            position: relative;
            height: 100%;
        }

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

        .custom-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 20px;
            right: 20px;
            height: 2px;
            background: var(--color-amber);
            border-radius: 0 0 4px 4px;
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .custom-card:hover::before {
            opacity: 1;
        }

        .card-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(245, 165, 36, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--color-amber-dark);
            margin-bottom: 14px;
            flex-shrink: 0;
        }

        .card-title {
            font-family: var(--font-serif);
            font-size: 1.08rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-ink);
        }

        .card-text {
            font-size: 0.93rem;
            color: rgba(26, 23, 20, 0.78);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* List cards for news */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .news-item {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px 22px;
            transition: box-shadow var(--transition-base), border-color var(--transition-base);
            display: flex;
            gap: 18px;
            align-items: flex-start;
        }

        .news-item:hover {
            border-color: var(--color-amber);
            box-shadow: var(--shadow-card-hover);
        }

        .news-thumb {
            width: 100px;
            height: 72px;
            border-radius: var(--radius-img);
            object-fit: cover;
            flex-shrink: 0;
        }

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

        .news-date {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--color-moss);
            letter-spacing: 0.04em;
            margin-bottom: 4px;
            display: block;
        }

        .news-title {
            font-family: var(--font-serif);
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--color-ink);
            margin-bottom: 4px;
            line-height: 1.5;
        }

        .news-summary {
            font-size: 0.88rem;
            color: rgba(26, 23, 20, 0.75);
            margin-bottom: 10px;
            line-height: 1.7;
        }

        .news-link {
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--color-amber-dark);
            border: 1.5px solid var(--color-amber);
            border-radius: var(--radius-pill);
            padding: 5px 16px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: background-color var(--transition-fast), color var(--transition-fast);
        }

        .news-link:hover {
            background-color: var(--color-amber);
            color: var(--color-ink);
        }

        /* Steps timeline */
        .steps-row {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }

        .step-item {
            flex: 1 1 200px;
            min-width: 0;
            position: relative;
            padding-left: 52px;
        }

        .step-number {
            position: absolute;
            left: 0;
            top: 0;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--color-amber);
            color: var(--color-ink);
            font-weight: 800;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            box-shadow: 0 4px 12px rgba(245, 165, 36, 0.35);
        }

        .step-item h3 {
            font-size: 1rem;
            margin-bottom: 5px;
        }

        .step-item p {
            font-size: 0.88rem;
            margin-bottom: 0;
            color: rgba(26, 23, 20, 0.75);
        }

        .steps-row.mobile-vertical {
            display: flex;
        }

        @media (max-width: 767px) {
            .steps-row {
                flex-direction: column;
                gap: 20px;
            }
            .step-item {
                padding-left: 52px;
                flex: 1 1 auto;
            }
        }

        /* Data metrics */
        .metric-block {
            text-align: center;
            padding: 24px 12px;
            background: rgba(26, 23, 20, 0.04);
            border-radius: var(--radius-card);
            border: 1px solid rgba(26, 23, 20, 0.06);
            transition: border-color var(--transition-fast), background-color var(--transition-fast);
        }

        .metric-block:hover {
            border-color: var(--color-amber);
            background: rgba(245, 165, 36, 0.06);
        }

        .metric-number {
            font-family: var(--font-mono);
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 700;
            color: var(--color-amber-dark);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }

        .metric-label {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-moss);
            letter-spacing: 0.03em;
            margin-top: 4px;
        }

        .metric-desc {
            font-size: 0.83rem;
            color: rgba(26, 23, 20, 0.68);
            margin-top: 6px;
            line-height: 1.6;
        }

        /* Scene cards */
        .scene-card {
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--color-border);
            background: #fff;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
            height: 100%;
        }

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

        .scene-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
        }

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

        .scene-card-body h3 {
            font-size: 1.05rem;
            margin-bottom: 6px;
        }

        .scene-card-body p {
            font-size: 0.88rem;
            color: rgba(26, 23, 20, 0.75);
            margin-bottom: 0;
            line-height: 1.65;
        }

        /* FAQ accordion */
        .accordion-custom .accordion-item {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card) !important;
            margin-bottom: 10px;
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }

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

        .accordion-custom .accordion-header {
            margin: 0;
        }

        .accordion-custom .accordion-button {
            background: #fff;
            color: var(--color-ink);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 16px 20px;
            border: none;
            box-shadow: none;
            font-family: var(--font-serif);
            letter-spacing: 0.01em;
            transition: color var(--transition-fast), background-color var(--transition-fast);
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            background: var(--color-paper);
            color: var(--color-amber-dark);
            box-shadow: none;
        }

        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            outline: 3px solid var(--color-amber);
            outline-offset: -2px;
        }

        .accordion-custom .accordion-button::after {
            filter: invert(1) sepia(0.3);
        }

        .accordion-custom .accordion-body {
            background: var(--color-paper);
            font-size: 0.9rem;
            color: rgba(26, 23, 20, 0.8);
            padding: 16px 20px;
            line-height: 1.8;
        }

        /* CTA form */
        .cta-form-wrap {
            max-width: 520px;
            margin: 0 auto;
        }

        .cta-form-wrap .form-control {
            border-radius: var(--radius-pill);
            border: 1.5px solid rgba(250, 248, 245, 0.25);
            background: rgba(250, 248, 245, 0.08);
            color: #fff;
            padding: 12px 20px;
            font-size: 0.95rem;
            transition: border-color var(--transition-fast), background-color var(--transition-fast);
        }

        .cta-form-wrap .form-control:focus {
            border-color: var(--color-amber);
            background: rgba(250, 248, 245, 0.14);
            box-shadow: none;
            outline: none;
        }

        .cta-form-wrap .form-control::placeholder {
            color: rgba(250, 248, 245, 0.5);
        }

        .cta-form-wrap .btn-amber {
            width: 100%;
            padding: 12px 24px;
            font-size: 1rem;
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-ink);
            color: rgba(250, 248, 245, 0.78);
            padding-top: 48px;
            padding-bottom: 24px;
        }

        .site-footer h3 {
            color: #fff;
            font-size: 1.05rem;
            margin-bottom: 16px;
        }

        .site-footer a {
            color: rgba(250, 248, 245, 0.78);
        }

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

        .footer-brand {
            font-family: var(--font-serif);
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            display: inline-block;
            margin-bottom: 10px;
        }

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

        .footer-links li {
            margin-bottom: 7px;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(250, 248, 245, 0.15);
            padding-top: 18px;
            margin-top: 32px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(250, 248, 245, 0.6);
        }

        .footer-bottom a {
            color: rgba(250, 248, 245, 0.7);
            font-size: 0.82rem;
        }

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

        /* Responsive adjustments */
        @media (max-width: 992px) {
            .news-item {
                flex-direction: column;
                gap: 12px;
            }
            .news-thumb {
                width: 100%;
                height: 150px;
                object-fit: cover;
            }
            .hero-reward-panel {
                margin-top: 20px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .header-top .btn-amber {
                padding: 8px 14px;
                font-size: 0.82rem;
            }
            .logo-brand {
                font-size: 1.3rem;
            }
            .chip-nav a {
                padding: 5px 12px;
                font-size: 0.78rem;
            }
            .hero-inner {
                padding-top: 32px;
                padding-bottom: 40px;
            }
            .hero-h1 {
                font-size: 1.75rem;
            }
            .news-item {
                padding: 16px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .header-top {
                gap: 8px;
            }
            .header-top .btn-amber {
                padding: 7px 12px;
                font-size: 0.75rem;
                border-radius: 20px;
            }
            .logo-brand {
                font-size: 1.15rem;
            }
            .hero-h1 {
                font-size: 1.5rem;
            }
            .btn-amber,
            .btn-outline-ink {
                padding: 9px 16px;
                font-size: 0.85rem;
            }
            .scene-card img {
                height: 140px;
            }
        }

/* roulang page: category2 */
:root {
            --color-ink: #1A1714;
            --color-amber: #F5A524;
            --color-amber-dark: #D98E1F;
            --color-spider: #2A2622;
            --color-paper: #FAF8F5;
            --color-moss: #5E7A6A;
            --color-alert: #C7432E;
            --color-border: #E5DFD7;
            --color-card: #FFFFFF;
            --shadow-card: rgba(26, 23, 20, 0.06) 0 8px 28px;
            --shadow-card-hover: rgba(26, 23, 20, 0.12) 0 14px 36px;
            --radius-card: 12px;
            --radius-pill: 999px;
            --radius-img: 8px;
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STSong', 'SimSun', serif;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Helvetica Neue', Arial, sans-serif;
            --font-mono: 'SFMono-Regular', 'Menlo', 'Consolas', 'Liberation Mono', monospace;
            --section-padding: clamp(40px, 6vw, 72px);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--color-paper);
            color: var(--color-ink);
            line-height: 1.8;
            letter-spacing: 0.01em;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--color-ink);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-amber-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--color-amber);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }
        .site-header {
            background-color: #fff;
            border-bottom: 2px solid var(--color-ink);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(26, 23, 20, 0.04);
        }
        .header-inner {
            padding: 12px 0 10px;
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .logo-brand {
            font-family: var(--font-serif);
            font-size: 1.65rem;
            font-weight: 800;
            color: var(--color-ink);
            letter-spacing: 0.03em;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .logo-brand:hover {
            color: var(--color-ink);
        }
        .logo-brand .logo-dot {
            width: 10px;
            height: 10px;
            background: var(--color-amber);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 0 3px rgba(245, 165, 36, 0.2);
            margin-right: 2px;
        }
        .btn-amber {
            background-color: var(--color-amber);
            color: var(--color-ink);
            border: none;
            border-radius: var(--radius-pill);
            padding: 10px 22px;
            font-weight: 700;
            font-size: 0.95rem;
            line-height: 1.4;
            cursor: pointer;
            transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .btn-amber:hover {
            background-color: var(--color-amber-dark);
            color: var(--color-ink);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(245, 165, 36, 0.28);
        }
        .btn-amber:active {
            transform: translateY(0);
            box-shadow: inset 0 2px 4px rgba(26, 23, 20, 0.2);
        }
        .btn-outline-ink {
            background-color: transparent;
            color: var(--color-ink);
            border: 1.5px solid var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 9px 22px;
            font-weight: 700;
            font-size: 0.95rem;
            line-height: 1.4;
            cursor: pointer;
            transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .btn-outline-ink:hover {
            background-color: var(--color-ink);
            color: #fff;
            border-color: var(--color-ink);
        }
        .chip-nav {
            display: flex;
            flex-wrap: nowrap;
            gap: 6px;
            overflow-x: auto;
            overflow-y: hidden;
            padding: 6px 0 2px;
            scrollbar-width: thin;
            scrollbar-color: var(--color-border) transparent;
            -webkit-overflow-scrolling: touch;
        }
        .chip-nav::-webkit-scrollbar {
            height: 4px;
        }
        .chip-nav::-webkit-scrollbar-thumb {
            background: var(--color-border);
            border-radius: 4px;
        }
        .chip-nav a {
            flex: 0 0 auto;
            border: 1.5px solid var(--color-ink);
            background-color: transparent;
            color: var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 0.85rem;
            font-weight: 600;
            line-height: 1.5;
            transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .chip-nav a:hover {
            border-color: var(--color-amber);
            background-color: rgba(245, 165, 36, 0.08);
            color: var(--color-ink);
        }
        .chip-nav a.active {
            background-color: var(--color-amber);
            border-color: var(--color-amber);
            color: var(--color-ink);
        }
        .main-content {
            padding-bottom: 0;
        }
        .breadcrumb-section {
            padding: 20px 0 0;
        }
        .breadcrumb {
            --bs-breadcrumb-divider-color: var(--color-moss);
            --bs-breadcrumb-item-active-color: var(--color-moss);
            margin-bottom: 0;
            font-size: 0.85rem;
        }
        .breadcrumb a {
            color: var(--color-moss);
        }
        .breadcrumb a:hover {
            color: var(--color-amber-dark);
        }
        .page-hero-compact {
            padding: 18px 0 8px;
            background-color: transparent;
        }
        .page-hero-compact h1 {
            font-family: var(--font-serif);
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 800;
            color: var(--color-ink);
            letter-spacing: 0.02em;
            margin-bottom: 6px;
        }
        .section-pad {
            padding: var(--section-padding) 0;
        }
        .section-pad-sm {
            padding: 28px 0;
        }
        .section-title {
            font-family: var(--font-serif);
            font-size: clamp(1.35rem, 2.6vw, 1.9rem);
            font-weight: 800;
            color: var(--color-ink);
            letter-spacing: 0.02em;
            margin-bottom: 16px;
        }
        .intro-text {
            font-size: 1rem;
            color: #4a4540;
            max-width: 860px;
            line-height: 1.9;
        }
        .list-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 20px;
            margin-bottom: 20px;
            transition: box-shadow var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
            overflow: hidden;
            position: relative;
        }
        .list-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-amber);
            transform: translateY(-2px);
        }
        .list-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--color-amber);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-base);
        }
        .list-card:hover::before {
            transform: scaleX(1);
        }
        .list-card .card-img-wrap {
            border-radius: var(--radius-img);
            overflow: hidden;
            aspect-ratio: 4/3;
            background-color: #f0ece7;
            flex-shrink: 0;
        }
        .list-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-img);
        }
        .list-card .card-body {
            flex: 1;
            min-width: 0;
        }
        .list-card .card-title {
            font-family: var(--font-serif);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-ink);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .list-card .card-text {
            font-size: 0.92rem;
            color: #5a544e;
            line-height: 1.8;
            margin-bottom: 10px;
        }
        .list-card .card-meta {
            font-size: 0.78rem;
            color: var(--color-moss);
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }
        .list-card .card-meta .badge-tag {
            background-color: rgba(245, 165, 36, 0.12);
            color: #9a6a0a;
            border-radius: var(--radius-pill);
            padding: 3px 12px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        .filter-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .filter-chips .chip {
            border: 1.5px solid var(--color-border);
            background-color: #fff;
            color: var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            cursor: default;
        }
        .filter-chips .chip:hover {
            border-color: var(--color-amber);
            background-color: rgba(245, 165, 36, 0.06);
        }
        .filter-chips .chip.active {
            background-color: var(--color-ink);
            color: #fff;
            border-color: var(--color-ink);
        }
        .data-sidebar {
            background: var(--color-spider);
            border-radius: var(--radius-card);
            padding: 24px;
            color: #fff;
            height: 100%;
        }
        .data-sidebar h3 {
            font-family: var(--font-serif);
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .data-sidebar .data-item {
            display: flex;
            align-items: baseline;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .data-sidebar .data-item:last-child {
            border-bottom: none;
        }
        .data-sidebar .data-value {
            font-family: var(--font-mono);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-amber);
            white-space: nowrap;
        }
        .data-sidebar .data-label {
            font-size: 0.85rem;
            color: rgba(250,248,245,0.78);
            line-height: 1.5;
        }
        .resource-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
            height: 100%;
        }
        .resource-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }
        .resource-card .resource-img {
            aspect-ratio: 4/3;
            overflow: hidden;
            background-color: #f0ece7;
        }
        .resource-card .resource-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .resource-card .resource-body {
            padding: 16px 18px;
        }
        .resource-card .resource-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-ink);
            margin-bottom: 4px;
            line-height: 1.5;
        }
        .resource-card .resource-desc {
            font-size: 0.82rem;
            color: #5a544e;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .accordion-custom .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
        }
        .accordion-custom .accordion-button {
            font-weight: 700;
            color: var(--color-ink);
            background: #fff;
            font-size: 0.98rem;
            padding: 16px 20px;
            box-shadow: none;
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            background: var(--color-paper);
            color: var(--color-amber-dark);
        }
        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            border-color: var(--color-amber);
        }
        .accordion-custom .accordion-body {
            font-size: 0.9rem;
            color: #5a544e;
            line-height: 1.8;
            padding: 14px 20px 18px;
        }
        .btn-see-more-wrap {
            display: flex;
            justify-content: center;
            padding-top: 8px;
        }
        .site-footer {
            background: var(--color-spider);
            color: rgba(250,248,245,0.78);
            padding: 48px 0 0;
            margin-top: 40px;
        }
        .footer-brand {
            font-family: var(--font-serif);
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            display: inline-block;
            margin-bottom: 12px;
        }
        .footer-brand:hover {
            color: var(--color-amber);
        }
        .site-footer h3 {
            font-family: var(--font-serif);
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: rgba(250,248,245,0.68);
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--color-amber);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            margin-top: 32px;
            padding: 16px 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 8px;
            font-size: 0.8rem;
            color: rgba(250,248,245,0.55);
        }
        .footer-bottom a {
            color: rgba(250,248,245,0.68);
            font-size: 0.8rem;
        }
        .footer-bottom a:hover {
            color: var(--color-amber);
        }
        @media (max-width: 767.98px) {
            .list-card {
                flex-direction: column;
            }
            .list-card .card-img-wrap {
                width: 100%;
                aspect-ratio: 16/9;
                margin-bottom: 14px;
            }
            .header-top {
                flex-wrap: nowrap;
            }
            .logo-brand {
                font-size: 1.35rem;
            }
            .btn-amber {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
        }
        @media (min-width: 768px) {
            .list-card {
                display: flex;
                gap: 20px;
                align-items: flex-start;
            }
            .list-card .card-img-wrap {
                width: 220px;
            }
        }
        @media (max-width: 991.98px) {
            .data-sidebar {
                margin-top: 16px;
            }
        }

/* roulang page: category3 */
:root {
            --color-ink: #1A1714;
            --color-amber: #F5A524;
            --color-amber-dark: #D98E1F;
            --color-spider: #2A2622;
            --color-paper: #FAF8F5;
            --color-moss: #5E7A6A;
            --color-alert: #C7432E;
            --color-border: #E5DFD7;
            --color-card: #FFFFFF;
            --shadow-card: rgba(26, 23, 20, 0.06) 0 8px 28px;
            --shadow-card-hover: rgba(26, 23, 20, 0.12) 0 14px 36px;
            --radius-card: 12px;
            --radius-pill: 999px;
            --radius-img: 8px;
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STSong', 'SimSun', serif;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Helvetica Neue', Arial, sans-serif;
            --font-mono: 'SFMono-Regular', 'Menlo', 'Consolas', 'Liberation Mono', monospace;
            --section-padding: clamp(40px, 6vw, 72px);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--color-paper);
            color: var(--color-ink);
            line-height: 1.8;
            letter-spacing: 0.01em;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--color-ink);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-amber-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--color-amber);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }
        /* Header / Nav */
        .site-header {
            background-color: #fff;
            border-bottom: 2px solid var(--color-ink);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(26, 23, 20, 0.04);
        }
        .header-inner {
            padding: 12px 0 10px;
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .logo-brand {
            font-family: var(--font-serif);
            font-size: 1.65rem;
            font-weight: 800;
            color: var(--color-ink);
            letter-spacing: 0.03em;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .logo-brand:hover {
            color: var(--color-ink);
        }
        .logo-brand .logo-dot {
            width: 10px;
            height: 10px;
            background: var(--color-amber);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 0 3px rgba(245, 165, 36, 0.2);
            margin-right: 2px;
        }
        .btn-amber {
            background-color: var(--color-amber);
            color: var(--color-ink);
            border: none;
            border-radius: var(--radius-pill);
            padding: 10px 22px;
            font-weight: 700;
            font-size: 0.95rem;
            line-height: 1.4;
            cursor: pointer;
            transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .btn-amber:hover {
            background-color: var(--color-amber-dark);
            color: var(--color-ink);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(245, 165, 36, 0.28);
        }
        .btn-amber:active {
            transform: translateY(0);
            box-shadow: inset 0 2px 4px rgba(26, 23, 20, 0.2);
        }
        .btn-outline-ink {
            background-color: transparent;
            color: var(--color-ink);
            border: 1.5px solid var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 9px 22px;
            font-weight: 700;
            font-size: 0.95rem;
            line-height: 1.4;
            cursor: pointer;
            transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .btn-outline-ink:hover {
            background-color: var(--color-ink);
            color: #fff;
            border-color: var(--color-ink);
        }
        .chip-nav {
            display: flex;
            flex-wrap: nowrap;
            gap: 6px;
            overflow-x: auto;
            overflow-y: hidden;
            padding: 6px 0 2px;
            scrollbar-width: thin;
            scrollbar-color: var(--color-border) transparent;
            -webkit-overflow-scrolling: touch;
        }
        .chip-nav::-webkit-scrollbar {
            height: 4px;
        }
        .chip-nav::-webkit-scrollbar-thumb {
            background: var(--color-border);
            border-radius: 4px;
        }
        .chip-nav a {
            flex: 0 0 auto;
            border: 1.5px solid var(--color-ink);
            background-color: transparent;
            color: var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .chip-nav a:hover {
            border-color: var(--color-amber);
            background-color: rgba(245, 165, 36, 0.08);
        }
        .chip-nav a.active {
            background-color: var(--color-amber);
            border-color: var(--color-amber);
            color: var(--color-ink);
            font-weight: 700;
        }
        /* Breadcrumb */
        .breadcrumb-bar {
            background-color: transparent;
            padding: 18px 0 0;
            font-size: 0.88rem;
            color: var(--color-moss);
        }
        .breadcrumb-bar a {
            color: var(--color-moss);
            font-weight: 500;
        }
        .breadcrumb-bar a:hover {
            color: var(--color-amber-dark);
        }
        .breadcrumb-bar .separator {
            margin: 0 6px;
            color: var(--color-border);
        }
        /* Section heading */
        .section-heading {
            font-family: var(--font-serif);
            font-weight: 800;
            font-size: clamp(1.6rem, 2.5vw, 2.2rem);
            letter-spacing: 0.02em;
            color: var(--color-ink);
            line-height: 1.4;
            margin-bottom: 16px;
        }
        .section-sub {
            font-size: 1rem;
            color: var(--color-moss);
            max-width: 700px;
            line-height: 1.8;
        }
        .category-h1 {
            font-family: var(--font-serif);
            font-weight: 800;
            font-size: clamp(1.8rem, 3vw, 2.6rem);
            letter-spacing: 0.02em;
            color: var(--color-ink);
            line-height: 1.35;
            margin-bottom: 6px;
        }
        .category-intro {
            font-size: 1rem;
            color: var(--color-moss);
            max-width: 800px;
            line-height: 1.9;
            margin-bottom: 24px;
        }
        /* Cards */
        .list-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: box-shadow var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
            margin-bottom: 20px;
            position: relative;
        }
        .list-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(245, 165, 36, 0.4);
            transform: translateY(-2px);
        }
        .list-card:hover::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--color-amber);
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }
        .list-card .card-body {
            padding: 20px 24px;
        }
        .list-card .card-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.15rem;
            line-height: 1.5;
            color: var(--color-ink);
            margin-bottom: 8px;
        }
        .list-card .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 10px;
            font-size: 0.82rem;
            color: var(--color-moss);
        }
        .list-card .card-meta .badge-date {
            background-color: var(--color-paper);
            color: var(--color-moss);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-pill);
            padding: 2px 10px;
            font-weight: 500;
        }
        .list-card .card-meta .badge-tag {
            background-color: rgba(245, 165, 36, 0.12);
            color: var(--color-amber-dark);
            border-radius: var(--radius-pill);
            padding: 2px 10px;
            font-weight: 600;
        }
        .list-card .card-text {
            font-size: 0.95rem;
            color: var(--color-spider);
            line-height: 1.8;
            margin-bottom: 12px;
        }
        .list-card .card-img-wrap {
            width: 100%;
            aspect-ratio: 4/3;
            overflow: hidden;
            border-radius: var(--radius-img);
            margin-bottom: 14px;
        }
        .list-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .list-card:hover .card-img-wrap img {
            transform: scale(1.03);
        }
        /* Filter chips */
        .filter-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 24px;
        }
        .filter-chips .chip-filter {
            border: 1.5px solid var(--color-border);
            background-color: #fff;
            color: var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .filter-chips .chip-filter:hover {
            border-color: var(--color-amber);
            background-color: rgba(245, 165, 36, 0.06);
        }
        .filter-chips .chip-filter.active {
            background-color: var(--color-ink);
            border-color: var(--color-ink);
            color: #fff;
        }
        /* Data side card */
        .data-side-card {
            background: var(--color-spider);
            border-radius: var(--radius-card);
            padding: 24px;
            color: #fff;
            height: 100%;
        }
        .data-side-card .data-num {
            font-family: var(--font-mono);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-amber);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .data-side-card .data-label {
            font-size: 0.88rem;
            color: rgba(250, 248, 245, 0.75);
            line-height: 1.6;
        }
        .data-side-card .data-unit {
            font-size: 0.9rem;
            color: var(--color-moss);
            font-weight: 600;
            margin-left: 4px;
        }
        /* Resource cards */
        .resource-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            transition: all var(--transition-base);
            height: 100%;
            display: block;
            color: var(--color-ink);
        }
        .resource-card:hover {
            border-color: rgba(245, 165, 36, 0.4);
            box-shadow: var(--shadow-card-hover);
            color: var(--color-ink);
            transform: translateY(-2px);
        }
        .resource-card .resource-icon {
            font-size: 1.5rem;
            color: var(--color-amber);
            margin-bottom: 10px;
        }
        .resource-card .resource-title {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .resource-card .resource-desc {
            font-size: 0.88rem;
            color: var(--color-moss);
            line-height: 1.7;
        }
        /* Category side nav */
        .side-nav-cat {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 16px;
        }
        .side-nav-cat .side-nav-title {
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 12px;
            color: var(--color-ink);
            font-family: var(--font-serif);
        }
        .side-nav-cat a {
            display: block;
            padding: 8px 12px;
            border-radius: var(--radius-pill);
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-spider);
            border: 1px solid transparent;
            margin-bottom: 4px;
            transition: all var(--transition-fast);
        }
        .side-nav-cat a:hover {
            background-color: rgba(245, 165, 36, 0.08);
            border-color: var(--color-border);
            color: var(--color-amber-dark);
        }
        .side-nav-cat a.active-side {
            background-color: var(--color-ink);
            color: #fff;
            font-weight: 600;
        }
        /* FAQ */
        .accordion-custom .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
            box-shadow: var(--shadow-card);
        }
        .accordion-custom .accordion-button {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-ink);
            background-color: #fff;
            padding: 16px 20px;
            border: none;
            box-shadow: none;
            border-radius: var(--radius-card) !important;
            transition: color var(--transition-fast);
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            color: var(--color-amber-dark);
            background-color: var(--color-paper);
            box-shadow: none;
        }
        .accordion-custom .accordion-button:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(245, 165, 36, 0.3);
        }
        .accordion-custom .accordion-body {
            padding: 16px 20px;
            background-color: var(--color-paper);
            font-size: 0.92rem;
            color: var(--color-spider);
            line-height: 1.8;
            border-top: 1px solid var(--color-border);
        }
        /* Footer */
        .site-footer {
            background-color: var(--color-spider);
            color: #fff;
            padding: 48px 0 24px;
            margin-top: 40px;
        }
        .site-footer .footer-brand {
            font-family: var(--font-serif);
            font-weight: 800;
            font-size: 1.4rem;
            color: #fff;
            letter-spacing: 0.03em;
            display: inline-block;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand:hover {
            color: var(--color-amber);
        }
        .site-footer h3 {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-amber);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 8px;
        }
        .site-footer .footer-links a {
            color: rgba(250, 248, 245, 0.78);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }
        .site-footer .footer-links a:hover {
            color: var(--color-amber);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(250, 248, 245, 0.15);
            margin-top: 32px;
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: rgba(250, 248, 245, 0.6);
        }
        .site-footer .footer-bottom a {
            color: rgba(250, 248, 245, 0.6);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--color-amber);
        }
        /* Section spacing */
        .section-block {
            padding: var(--section-padding) 0;
        }
        .section-block-sm {
            padding: 32px 0;
        }
        .section-alt {
            background-color: #fff;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        /* Responsive */
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: nowrap;
            }
            .logo-brand {
                font-size: 1.3rem;
            }
            .btn-amber {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
            .chip-nav a {
                padding: 5px 12px;
                font-size: 0.78rem;
            }
            .section-heading {
                font-size: 1.4rem;
            }
            .category-h1 {
                font-size: 1.6rem;
            }
            .data-side-card .data-num {
                font-size: 1.5rem;
            }
            .site-footer {
                padding: 32px 0 16px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }
        @media (max-width: 520px) {
            .header-inner {
                padding: 8px 0 6px;
            }
            .logo-brand {
                font-size: 1.15rem;
            }
            .btn-amber {
                padding: 6px 12px;
                font-size: 0.8rem;
            }
            .chip-nav {
                gap: 4px;
            }
            .chip-nav a {
                padding: 4px 10px;
                font-size: 0.72rem;
            }
            .list-card .card-body {
                padding: 14px 16px;
            }
            .list-card .card-title {
                font-size: 1rem;
            }
            .filter-chips .chip-filter {
                padding: 5px 12px;
                font-size: 0.78rem;
            }
        }

/* roulang page: category1 */
:root {
            --color-ink: #1A1714;
            --color-amber: #F5A524;
            --color-amber-dark: #D98E1F;
            --color-spider: #2A2622;
            --color-paper: #FAF8F5;
            --color-moss: #5E7A6A;
            --color-alert: #C7432E;
            --color-border: #E5DFD7;
            --color-card: #FFFFFF;
            --shadow-card: rgba(26, 23, 20, 0.06) 0 8px 28px;
            --shadow-card-hover: rgba(26, 23, 20, 0.12) 0 14px 36px;
            --radius-card: 12px;
            --radius-pill: 999px;
            --radius-img: 8px;
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STSong', 'SimSun', serif;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Helvetica Neue', Arial, sans-serif;
            --font-mono: 'SFMono-Regular', 'Menlo', 'Consolas', 'Liberation Mono', monospace;
            --section-padding: clamp(40px, 6vw, 72px);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-paper);
            color: var(--color-ink);
            line-height: 1.8;
            letter-spacing: 0.01em;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover {
            color: var(--color-amber-dark);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }

        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--color-amber);
            outline-offset: 2px;
            border-radius: 4px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-serif);
            font-weight: 700;
            line-height: 1.35;
            color: var(--color-ink);
            letter-spacing: 0.02em;
        }

        h1 {
            font-size: clamp(1.6rem, 3.2vw, 2.4rem);
            font-weight: 900;
            margin-bottom: 0.5rem;
        }

        h2 {
            font-size: clamp(1.3rem, 2.5vw, 1.9rem);
            margin-bottom: 1rem;
        }

        h3 {
            font-size: clamp(1.05rem, 1.8vw, 1.35rem);
            margin-bottom: 0.75rem;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Header / Nav */
        .site-header {
            background-color: #fff;
            border-bottom: 2px solid var(--color-ink);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(26, 23, 20, 0.04);
        }

        .header-inner {
            padding: 12px 0 10px;
        }

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

        .logo-brand {
            font-family: var(--font-serif);
            font-size: 1.65rem;
            font-weight: 800;
            color: var(--color-ink);
            letter-spacing: 0.03em;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .logo-brand:hover {
            color: var(--color-ink);
        }

        .logo-brand .logo-dot {
            width: 10px;
            height: 10px;
            background: var(--color-amber);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 0 3px rgba(245, 165, 36, 0.2);
            margin-right: 2px;
        }

        .btn-amber {
            background-color: var(--color-amber);
            color: var(--color-ink);
            border: none;
            border-radius: var(--radius-pill);
            padding: 10px 22px;
            font-weight: 700;
            font-size: 0.95rem;
            line-height: 1.4;
            cursor: pointer;
            transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .btn-amber:hover {
            background-color: var(--color-amber-dark);
            color: var(--color-ink);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(245, 165, 36, 0.28);
        }

        .btn-amber:active {
            transform: translateY(0);
            box-shadow: inset 0 2px 4px rgba(26, 23, 20, 0.2);
        }

        .btn-outline-ink {
            background-color: transparent;
            color: var(--color-ink);
            border: 1.5px solid var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 9px 22px;
            font-weight: 700;
            font-size: 0.95rem;
            line-height: 1.4;
            cursor: pointer;
            transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .btn-outline-ink:hover {
            background-color: var(--color-ink);
            color: #fff;
            border-color: var(--color-ink);
        }

        .chip-nav {
            display: flex;
            flex-wrap: nowrap;
            gap: 6px;
            overflow-x: auto;
            overflow-y: hidden;
            padding: 6px 0 2px;
            scrollbar-width: thin;
            scrollbar-color: var(--color-border) transparent;
            -webkit-overflow-scrolling: touch;
        }

        .chip-nav::-webkit-scrollbar {
            height: 4px;
        }

        .chip-nav::-webkit-scrollbar-thumb {
            background: var(--color-border);
            border-radius: 4px;
        }

        .chip-nav a {
            flex: 0 0 auto;
            border: 1.5px solid var(--color-ink);
            background-color: transparent;
            color: var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 0.85rem;
            font-weight: 600;
            line-height: 1.5;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .chip-nav a:hover {
            border-color: var(--color-amber);
            background-color: rgba(245, 165, 36, 0.08);
            color: var(--color-ink);
        }

        .chip-nav a.active {
            background-color: var(--color-amber);
            border-color: var(--color-amber);
            color: var(--color-ink);
            font-weight: 700;
            box-shadow: 0 2px 8px rgba(245, 165, 36, 0.25);
        }

        /* Breadcrumb */
        .breadcrumb-wrap {
            padding: 1.4rem 0 0.4rem;
            font-size: 0.85rem;
            color: var(--color-moss);
        }

        .breadcrumb-wrap a {
            color: var(--color-moss);
            border-bottom: 1px dotted var(--color-border);
            transition: color var(--transition-fast), border-color var(--transition-fast);
        }

        .breadcrumb-wrap a:hover {
            color: var(--color-amber-dark);
            border-color: var(--color-amber);
        }

        .breadcrumb-wrap .separator {
            margin: 0 8px;
            color: var(--color-border);
        }

        .breadcrumb-wrap .current {
            color: var(--color-ink);
            font-weight: 600;
        }

        /* Category header */
        .category-header {
            padding: 1.2rem 0 1.8rem;
            border-bottom: 1px solid var(--color-border);
            margin-bottom: var(--section-padding);
        }

        .category-header h1 {
            margin-bottom: 0.4rem;
        }

        .category-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--color-moss);
        }

        .category-meta .badge-live {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background-color: rgba(199, 67, 46, 0.08);
            color: var(--color-alert);
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.04em;
        }

        .badge-live .pulse-dot {
            width: 6px;
            height: 6px;
            background: var(--color-alert);
            border-radius: 50%;
            animation: pulse 1.6s ease-in-out infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.45;
                transform: scale(0.8);
            }
        }

        /* Intro paragraph */
        .category-intro {
            font-size: 1.02rem;
            color: #4A443E;
            max-width: 860px;
            margin-bottom: var(--section-padding);
            line-height: 1.85;
        }

        /* Filter chips */
        .filter-bar {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            padding: 0.5rem 0 1.8rem;
            border-bottom: 1px dashed var(--color-border);
            margin-bottom: var(--section-padding);
        }

        .filter-chip {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            border: 1.5px solid var(--color-border);
            background-color: #fff;
            color: var(--color-moss);
            border-radius: var(--radius-pill);
            padding: 5px 14px;
            font-size: 0.8rem;
            font-weight: 600;
            cursor: default;
            transition: all var(--transition-fast);
        }

        .filter-chip:hover {
            border-color: var(--color-moss);
            color: var(--color-ink);
            background-color: rgba(94, 122, 106, 0.06);
        }

        .filter-chip.hot {
            border-color: var(--color-amber);
            color: var(--color-ink);
            background-color: rgba(245, 165, 36, 0.08);
        }

        /* Content list cards */
        .content-list {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
            margin-bottom: var(--section-padding);
        }

        .content-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: box-shadow var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
        }

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

        .content-card .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: 0;
        }

        .content-card .card-body {
            padding: 1.2rem 1.4rem 1.3rem;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .card-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .tag-chip {
            display: inline-block;
            background-color: rgba(94, 122, 106, 0.1);
            color: var(--color-moss);
            font-size: 0.72rem;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.03em;
        }

        .card-title {
            font-family: var(--font-serif);
            font-size: 1.12rem;
            font-weight: 700;
            line-height: 1.45;
            color: var(--color-ink);
            margin: 0;
        }

        .card-title a {
            color: inherit;
            transition: color var(--transition-fast);
        }

        .card-title a:hover {
            color: var(--color-amber-dark);
        }

        .card-summary {
            font-size: 0.88rem;
            color: #4A443E;
            line-height: 1.7;
            margin: 0;
        }

        .card-date {
            font-size: 0.78rem;
            color: #8A8178;
            font-family: var(--font-mono);
            letter-spacing: 0.02em;
        }

        .card-readmore {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--color-amber-dark);
            transition: color var(--transition-fast);
            cursor: pointer;
        }

        .card-readmore:hover {
            color: var(--color-ink);
        }

        @media (min-width: 768px) {
            .content-card {
                flex-direction: row;
                align-items: stretch;
            }

            .content-card .card-img {
                width: 280px;
                min-height: 180px;
                aspect-ratio: auto;
                flex-shrink: 0;
                object-fit: cover;
            }

            .content-card .card-body {
                flex: 1;
                justify-content: center;
                padding: 1.4rem 1.8rem;
            }
        }

        /* Support section A: sidebar + metrics */
        .support-section-a {
            background-color: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 1.8rem;
            margin-bottom: var(--section-padding);
            box-shadow: var(--shadow-card);
        }

        .support-section-a .support-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .support-section-a .support-title i {
            color: var(--color-amber);
            font-size: 1.3rem;
        }

        .category-nav-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 1.4rem;
        }

        .category-nav-chips a {
            display: inline-flex;
            align-items: center;
            border: 1.5px solid var(--color-border);
            background-color: var(--color-paper);
            color: var(--color-moss);
            border-radius: var(--radius-pill);
            padding: 5px 13px;
            font-size: 0.78rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .category-nav-chips a:hover {
            border-color: var(--color-amber);
            color: var(--color-ink);
            background-color: rgba(245, 165, 36, 0.06);
        }

        .category-nav-chips a.active {
            background-color: var(--color-ink);
            border-color: var(--color-ink);
            color: #fff;
        }

        .metric-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
        }

        .metric-item {
            background: var(--color-paper);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 1.1rem 1.25rem;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .metric-item:hover {
            border-color: var(--color-amber);
            box-shadow: rgba(245, 165, 36, 0.08) 0 6px 20px;
        }

        .metric-number {
            font-family: var(--font-mono);
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--color-amber-dark);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .metric-label {
            font-size: 0.82rem;
            color: var(--color-moss);
            font-weight: 600;
            margin-top: 0.2rem;
        }

        @media (min-width: 992px) {
            .support-section-a .row {
                align-items: flex-start;
            }
        }

        @media (max-width: 767px) {
            .metric-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Support section B: resource entries */
        .support-section-b {
            margin-bottom: var(--section-padding);
        }

        .support-section-b .section-heading {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 1.4rem;
        }

        .support-section-b .section-heading h2 {
            margin-bottom: 0;
            font-size: 1.35rem;
        }

        .resource-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1rem;
        }

        .resource-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all var(--transition-base);
        }

        .resource-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: var(--color-amber);
        }

        .resource-card .resource-img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            border-radius: 0;
        }

        .resource-card .resource-body {
            padding: 0.9rem 1rem 1rem;
            display: flex;
            flex-direction: column;
            gap: 0.35rem;
        }

        .resource-card .resource-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 0.95rem;
            line-height: 1.4;
            color: var(--color-ink);
            margin: 0;
        }

        .resource-card .resource-desc {
            font-size: 0.78rem;
            color: #6B635B;
            line-height: 1.6;
            margin: 0;
        }

        .resource-card .resource-link {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--color-amber-dark);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition-fast);
        }

        .resource-card .resource-link:hover {
            color: var(--color-ink);
        }

        @media (max-width: 991px) {
            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 575px) {
            .resource-grid {
                grid-template-columns: 1fr;
            }
        }

        /* FAQ accordion */
        .faq-section {
            margin-bottom: var(--section-padding);
        }

        .faq-section .section-heading {
            margin-bottom: 1.2rem;
        }

        .faq-section .section-heading h2 {
            margin-bottom: 0.2rem;
            font-size: 1.35rem;
        }

        .faq-section .section-heading p {
            font-size: 0.88rem;
            color: var(--color-moss);
            margin: 0;
        }

        .accordion-zhizhu {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            background: #fff;
        }

        .accordion-zhizhu .accordion-item {
            border: none;
            border-bottom: 1px solid var(--color-border);
            background: transparent;
        }

        .accordion-zhizhu .accordion-item:last-child {
            border-bottom: none;
        }

        .accordion-zhizhu .accordion-button {
            background-color: #fff;
            color: var(--color-ink);
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 1.1rem 1.4rem;
            border: none;
            box-shadow: none;
            transition: background-color var(--transition-fast), color var(--transition-fast);
        }

        .accordion-zhizhu .accordion-button:not(.collapsed) {
            background-color: #FAF8F5;
            color: var(--color-amber-dark);
            border-bottom: 1px solid var(--color-border);
        }

        .accordion-zhizhu .accordion-button:focus {
            box-shadow: none;
            outline: 3px solid var(--color-amber);
            outline-offset: -2px;
        }

        .accordion-zhizhu .accordion-button::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath fill='%231A1714' d='M8 2.5a.5.5 0 0 1 .5.5v4.5H13a.5.5 0 0 1 0 1H8.5V13a.5.5 0 0 1-1 0V8.5H3a.5.5 0 0 1 0-1h4.5V3a.5.5 0 0 1 .5-.5z'/%3E%3C/svg%3E");
            transition: transform var(--transition-base);
        }

        .accordion-zhizhu .accordion-button:not(.collapsed)::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath fill='%23F5A524' d='M3 7.5a.5.5 0 0 1 .5-.5h9a.5.5 0 0 1 0 1h-9a.5.5 0 0 1-.5-.5z'/%3E%3C/svg%3E");
            transform: rotate(0deg);
        }

        .accordion-zhizhu .accordion-body {
            background-color: #FAF8F5;
            padding: 1.1rem 1.4rem 1.3rem;
            font-size: 0.88rem;
            color: #4A443E;
            line-height: 1.75;
        }

        /* Load more */
        .load-more-section {
            text-align: center;
            padding: 0.6rem 0 var(--section-padding);
        }

        .load-more-section .btn-amber {
            padding: 12px 32px;
            font-size: 0.95rem;
        }

        .hidden-card {
            display: none;
        }

        .hidden-card.visible {
            display: flex;
        }

        @media (min-width: 768px) {
            .hidden-card.visible {
                display: flex;
            }
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-ink);
            color: rgba(250, 248, 245, 0.72);
            padding: clamp(40px, 5vw, 64px) 0 24px;
            margin-top: 0;
            border-top: 4px solid var(--color-amber);
        }

        .site-footer a {
            color: rgba(250, 248, 245, 0.72);
            transition: color var(--transition-fast);
        }

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

        .footer-brand {
            font-family: var(--font-serif);
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            display: inline-block;
            margin-bottom: 0.6rem;
        }

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

        .site-footer h3 {
            font-size: 0.92rem;
            font-weight: 700;
            color: rgba(250, 248, 245, 0.92);
            margin-bottom: 1rem;
            font-family: var(--font-sans);
            letter-spacing: 0.04em;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.45rem;
        }

        .footer-links li {
            margin: 0;
        }

        .footer-links a {
            font-size: 0.85rem;
            color: rgba(250, 248, 245, 0.68);
        }

        .footer-links a:hover {
            color: var(--color-amber);
            padding-left: 2px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(250, 248, 245, 0.14);
            margin-top: 2.4rem;
            padding-top: 1.2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.8rem;
            color: rgba(250, 248, 245, 0.55);
        }

        .footer-bottom a {
            color: rgba(250, 248, 245, 0.55);
        }

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

        /* Responsive adjustments */
        @media (max-width: 767px) {
            .header-top {
                gap: 10px;
            }

            .logo-brand {
                font-size: 1.35rem;
            }

            .btn-amber {
                padding: 8px 16px;
                font-size: 0.82rem;
            }

            .chip-nav a {
                padding: 5px 12px;
                font-size: 0.78rem;
            }

            .category-header {
                padding: 0.8rem 0 1.2rem;
                margin-bottom: 2rem;
            }

            .content-card .card-body {
                padding: 1rem 1.1rem 1.1rem;
            }

            .support-section-a {
                padding: 1.2rem;
            }

            .metric-number {
                font-size: 1.3rem;
            }

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

        @media (max-width: 575px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }

            .content-card .card-img {
                aspect-ratio: 16/9;
            }

            .card-title {
                font-size: 1rem;
            }

            .filter-chip {
                font-size: 0.72rem;
                padding: 4px 10px;
            }

            .category-nav-chips a {
                font-size: 0.7rem;
                padding: 4px 10px;
            }

            .resource-card .resource-title {
                font-size: 0.88rem;
            }
        }

/* roulang page: category4 */
:root {
            --color-ink: #1A1714;
            --color-amber: #F5A524;
            --color-amber-dark: #D98E1F;
            --color-spider: #2A2622;
            --color-paper: #FAF8F5;
            --color-moss: #5E7A6A;
            --color-alert: #C7432E;
            --color-border: #E5DFD7;
            --color-card: #FFFFFF;
            --shadow-card: rgba(26, 23, 20, 0.06) 0 8px 28px;
            --shadow-card-hover: rgba(26, 23, 20, 0.12) 0 14px 36px;
            --radius-card: 12px;
            --radius-pill: 999px;
            --radius-img: 8px;
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STSong', 'SimSun', serif;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Helvetica Neue', Arial, sans-serif;
            --font-mono: 'SFMono-Regular', 'Menlo', 'Consolas', 'Liberation Mono', monospace;
            --section-padding: clamp(40px, 6vw, 72px);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-paper);
            color: var(--color-ink);
            line-height: 1.8;
            letter-spacing: 0.01em;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover {
            color: var(--color-amber-dark);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }

        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--color-amber);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Header / Nav */
        .site-header {
            background-color: #fff;
            border-bottom: 2px solid var(--color-ink);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(26, 23, 20, 0.04);
        }

        .header-inner {
            padding: 12px 0 10px;
        }

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

        .logo-brand {
            font-family: var(--font-serif);
            font-size: 1.65rem;
            font-weight: 800;
            color: var(--color-ink);
            letter-spacing: 0.03em;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .logo-brand:hover {
            color: var(--color-ink);
        }

        .logo-brand .logo-dot {
            width: 10px;
            height: 10px;
            background: var(--color-amber);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 0 3px rgba(245, 165, 36, 0.2);
            margin-right: 2px;
        }

        .btn-amber {
            background-color: var(--color-amber);
            color: var(--color-ink);
            border: none;
            border-radius: var(--radius-pill);
            padding: 10px 22px;
            font-weight: 700;
            font-size: 0.95rem;
            line-height: 1.4;
            cursor: pointer;
            transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .btn-amber:hover {
            background-color: var(--color-amber-dark);
            color: var(--color-ink);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(245, 165, 36, 0.28);
        }

        .btn-amber:active {
            transform: translateY(0);
            box-shadow: inset 0 2px 4px rgba(26, 23, 20, 0.2);
        }

        .btn-outline-ink {
            background-color: transparent;
            color: var(--color-ink);
            border: 1.5px solid var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 9px 22px;
            font-weight: 700;
            font-size: 0.95rem;
            line-height: 1.4;
            cursor: pointer;
            transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .btn-outline-ink:hover {
            background-color: var(--color-ink);
            color: #fff;
            border-color: var(--color-ink);
        }

        .chip-nav {
            display: flex;
            flex-wrap: nowrap;
            gap: 6px;
            overflow-x: auto;
            overflow-y: hidden;
            padding: 6px 0 2px;
            scrollbar-width: thin;
            scrollbar-color: var(--color-border) transparent;
            -webkit-overflow-scrolling: touch;
        }

        .chip-nav::-webkit-scrollbar {
            height: 4px;
        }

        .chip-nav::-webkit-scrollbar-thumb {
            background: var(--color-border);
            border-radius: 4px;
        }

        .chip-nav a {
            flex: 0 0 auto;
            border: 1.5px solid var(--color-ink);
            background-color: transparent;
            color: var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            position: relative;
            letter-spacing: 0.02em;
        }

        .chip-nav a:hover {
            border-color: var(--color-amber);
            color: var(--color-amber-dark);
            background-color: rgba(245, 165, 36, 0.06);
        }

        .chip-nav a.active {
            background-color: var(--color-amber);
            border-color: var(--color-amber);
            color: var(--color-ink);
            font-weight: 700;
        }

        .chip-nav a.active::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 16px;
            background-color: var(--color-ink);
            border-radius: 2px;
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            padding: 18px 0 0;
            font-size: 0.85rem;
            color: var(--color-moss);
        }

        .breadcrumb-bar a {
            color: var(--color-moss);
            font-weight: 500;
        }

        .breadcrumb-bar a:hover {
            color: var(--color-amber-dark);
        }

        .breadcrumb-bar .separator {
            margin: 0 6px;
            color: var(--color-border);
        }

        .breadcrumb-bar .current {
            color: var(--color-ink);
            font-weight: 600;
        }

        /* Category H1 compact */
        .category-head {
            padding: 10px 0 14px;
            border-bottom: 2px solid var(--color-ink);
        }

        .category-head h1 {
            font-family: var(--font-serif);
            font-size: clamp(1.7rem, 3.5vw, 2.4rem);
            font-weight: 800;
            color: var(--color-ink);
            margin: 0;
            letter-spacing: 0.02em;
            line-height: 1.35;
        }

        .category-head .sub-line {
            color: var(--color-moss);
            font-size: 0.95rem;
            margin-top: 4px;
            font-weight: 500;
        }

        /* Category intro */
        .category-intro {
            padding: 20px 0 28px;
        }

        .category-intro p {
            font-size: 1rem;
            line-height: 1.9;
            color: #3d3834;
            margin: 0;
            max-width: 780px;
        }

        /* Filter chips */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            padding: 0 0 24px;
        }

        .filter-chip {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            border: 1.5px solid var(--color-border);
            background-color: #fff;
            color: var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 5px 16px;
            font-size: 0.82rem;
            font-weight: 600;
            cursor: default;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .filter-chip:hover {
            border-color: var(--color-amber);
            color: var(--color-amber-dark);
            background-color: rgba(245, 165, 36, 0.06);
        }

        .filter-chip .bi {
            font-size: 0.7rem;
            color: var(--color-moss);
        }

        /* List cards */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            padding-bottom: 36px;
        }

        .article-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            display: flex;
            transition: box-shadow var(--transition-base), border-color var(--transition-fast), transform var(--transition-fast);
        }

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

        .article-card .card-img {
            flex: 0 0 240px;
            min-height: 150px;
            overflow: hidden;
            position: relative;
        }

        .article-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-base);
        }

        .article-card:hover .card-img img {
            transform: scale(1.04);
        }

        .article-card .card-body-content {
            flex: 1;
            padding: 18px 22px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .article-card .card-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            font-size: 0.78rem;
            color: var(--color-moss);
        }

        .article-card .card-meta .date {
            font-family: var(--font-mono);
            font-size: 0.76rem;
            letter-spacing: 0.04em;
        }

        .article-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .article-card .tag {
            display: inline-block;
            background-color: var(--color-paper);
            border: 1px solid var(--color-border);
            color: var(--color-moss);
            border-radius: var(--radius-pill);
            padding: 2px 12px;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
        }

        .article-card:hover .tag {
            border-color: var(--color-amber);
            color: var(--color-amber-dark);
        }

        .article-card h2,
        .article-card .card-title {
            font-family: var(--font-serif);
            font-size: 1.12rem;
            font-weight: 700;
            color: var(--color-ink);
            margin: 0;
            line-height: 1.5;
            letter-spacing: 0.01em;
        }

        .article-card .card-title a {
            color: var(--color-ink);
        }

        .article-card .card-title a:hover {
            color: var(--color-amber-dark);
        }

        .article-card .card-excerpt {
            font-size: 0.88rem;
            line-height: 1.75;
            color: #514b46;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* Support section A - sidebar layout */
        .support-section {
            padding: var(--section-padding) 0;
            border-top: 2px solid var(--color-border);
        }

        .support-section .section-title {
            font-family: var(--font-serif);
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--color-ink);
            margin-bottom: 20px;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
        }

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

        .side-chip-nav {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .side-chip-link {
            display: flex;
            align-items: center;
            gap: 8px;
            border: 1.5px solid var(--color-border);
            background: #fff;
            border-radius: 10px;
            padding: 10px 16px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-ink);
            transition: all var(--transition-fast);
        }

        .side-chip-link:hover {
            border-color: var(--color-amber);
            color: var(--color-amber-dark);
            background-color: rgba(245, 165, 36, 0.04);
        }

        .side-chip-link .bi {
            color: var(--color-moss);
            font-size: 0.8rem;
        }

        .metric-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 16px 18px;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), border-color var(--transition-fast);
        }

        .metric-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-amber);
        }

        .metric-card .metric-num {
            font-family: var(--font-mono);
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--color-amber);
            letter-spacing: 0.02em;
            line-height: 1.2;
        }

        .metric-card .metric-label {
            font-size: 0.82rem;
            color: var(--color-moss);
            font-weight: 600;
            margin-top: 4px;
        }

        .metric-card .metric-desc {
            font-size: 0.78rem;
            color: #514b46;
            margin-top: 6px;
            line-height: 1.6;
        }

        /* Support section B - resources */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
        }

        .resource-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), border-color var(--transition-fast), transform var(--transition-fast);
        }

        .resource-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-amber);
            transform: translateY(-3px);
        }

        .resource-card .resource-img {
            aspect-ratio: 4/3;
            overflow: hidden;
            border-radius: 0;
        }

        .resource-card .resource-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-base);
        }

        .resource-card:hover .resource-img img {
            transform: scale(1.05);
        }

        .resource-card .resource-body {
            padding: 16px 18px;
        }

        .resource-card .resource-title {
            font-family: var(--font-serif);
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--color-ink);
            margin: 0 0 6px;
            line-height: 1.5;
        }

        .resource-card .resource-text {
            font-size: 0.82rem;
            color: #514b46;
            line-height: 1.7;
            margin: 0;
        }

        /* FAQ accordion */
        .faq-section {
            padding: var(--section-padding) 0;
            border-top: 2px solid var(--color-border);
        }

        .accordion-custom .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: 10px !important;
            margin-bottom: 10px;
            overflow: hidden;
            background: #fff;
        }

        .accordion-custom .accordion-button {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--color-ink);
            background-color: #fff;
            padding: 14px 18px;
            border-radius: 10px !important;
            transition: all var(--transition-fast);
            box-shadow: none;
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            color: var(--color-amber-dark);
            background-color: var(--color-paper);
            border-bottom: 1px solid var(--color-border);
        }

        .accordion-custom .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(245, 165, 36, 0.25);
            border-color: var(--color-amber);
        }

        .accordion-custom .accordion-button::after {
            background-image: none;
            content: '+';
            font-size: 1.4rem;
            font-weight: 400;
            line-height: 1;
            color: var(--color-amber);
            transform: rotate(0);
            transition: transform var(--transition-fast);
        }

        .accordion-custom .accordion-button:not(.collapsed)::after {
            content: '−';
            transform: rotate(0);
            color: var(--color-amber-dark);
        }

        .accordion-custom .accordion-body {
            padding: 14px 18px;
            font-size: 0.88rem;
            line-height: 1.8;
            color: #3d3834;
            background-color: #fff;
        }

        /* View more button */
        .view-more-wrap {
            padding: 10px 0 40px;
            text-align: center;
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-spider);
            color: rgba(250, 248, 245, 0.85);
            padding: 48px 0 24px;
            margin-top: 20px;
        }

        .site-footer .footer-brand {
            font-family: var(--font-serif);
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.03em;
            display: inline-block;
            margin-bottom: 8px;
        }

        .site-footer .footer-brand:hover {
            color: var(--color-amber);
        }

        .site-footer h3 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-amber);
            letter-spacing: 0.06em;
            margin-bottom: 14px;
            text-transform: uppercase;
            font-family: var(--font-sans);
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            color: rgba(250, 248, 245, 0.72);
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            padding-top: 24px;
            margin-top: 32px;
            border-top: 1px solid rgba(250, 248, 245, 0.15);
            font-size: 0.82rem;
            color: rgba(250, 248, 245, 0.6);
        }

        .footer-bottom a {
            color: rgba(250, 248, 245, 0.6);
            font-size: 0.82rem;
        }

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

        /* Responsive */
        @media (max-width: 992px) {
            .article-card .card-img {
                flex-basis: 180px;
            }
            .resource-grid {
                grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            }
        }

        @media (max-width: 768px) {
            .article-card {
                flex-direction: column;
            }
            .article-card .card-img {
                flex-basis: auto;
                width: 100%;
                aspect-ratio: 16/9;
                min-height: auto;
            }
            .article-card .card-body-content {
                padding: 14px 16px;
            }
            .article-card .card-title {
                font-size: 1rem;
            }
            .article-card .card-excerpt {
                -webkit-line-clamp: 3;
            }
            .chip-nav {
                gap: 4px;
            }
            .chip-nav a {
                padding: 5px 12px;
                font-size: 0.78rem;
            }
            .chip-nav a.active::before {
                display: none;
            }
            .resource-grid {
                grid-template-columns: 1fr;
            }
            .support-section .section-title {
                font-size: 1.15rem;
            }
            .metric-card .metric-num {
                font-size: 1.4rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 576px) {
            .header-top {
                gap: 10px;
            }
            .logo-brand {
                font-size: 1.35rem;
            }
            .btn-amber {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
            .category-head h1 {
                font-size: 1.5rem;
            }
            .filter-chip {
                font-size: 0.75rem;
                padding: 4px 12px;
            }
            .article-card .card-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
        }

/* roulang page: category5 */
:root {
            --color-ink: #1A1714;
            --color-amber: #F5A524;
            --color-amber-dark: #D98E1F;
            --color-spider: #2A2622;
            --color-paper: #FAF8F5;
            --color-moss: #5E7A6A;
            --color-alert: #C7432E;
            --color-border: #E5DFD7;
            --color-card: #FFFFFF;
            --shadow-card: rgba(26, 23, 20, 0.06) 0 8px 28px;
            --shadow-card-hover: rgba(26, 23, 20, 0.12) 0 14px 36px;
            --radius-card: 12px;
            --radius-pill: 999px;
            --radius-img: 8px;
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STSong', 'SimSun', serif;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Helvetica Neue', Arial, sans-serif;
            --font-mono: 'SFMono-Regular', 'Menlo', 'Consolas', 'Liberation Mono', monospace;
            --section-padding: clamp(40px, 6vw, 72px);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--color-paper);
            color: var(--color-ink);
            line-height: 1.8;
            letter-spacing: 0.01em;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--color-ink);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-amber-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--color-amber);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }
        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-serif);
            font-weight: 700;
            line-height: 1.4;
            color: var(--color-ink);
        }
        h1 {
            font-size: clamp(1.75rem, 3.2vw, 2.4rem);
            font-weight: 900;
            letter-spacing: 0.02em;
        }
        h2 {
            font-size: clamp(1.4rem, 2.4vw, 1.85rem);
            font-weight: 800;
            letter-spacing: 0.015em;
        }
        h3 {
            font-size: 1.15rem;
            font-weight: 700;
        }
        .fw-serif {
            font-family: var(--font-serif);
        }
        .fw-mono {
            font-family: var(--font-mono);
        }
        .text-ink { color: var(--color-ink); }
        .text-amber { color: var(--color-amber); }
        .text-moss { color: var(--color-moss); }
        .text-alert { color: var(--color-alert); }
        .text-muted-ink {
            color: rgba(26, 23, 20, 0.62);
        }
        /* Header / Nav */
        .site-header {
            background-color: #fff;
            border-bottom: 2px solid var(--color-ink);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(26, 23, 20, 0.04);
        }
        .header-inner {
            padding: 12px 0 10px;
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .logo-brand {
            font-family: var(--font-serif);
            font-size: 1.65rem;
            font-weight: 800;
            color: var(--color-ink);
            letter-spacing: 0.03em;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .logo-brand:hover {
            color: var(--color-ink);
        }
        .logo-brand .logo-dot {
            width: 10px;
            height: 10px;
            background: var(--color-amber);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 0 3px rgba(245, 165, 36, 0.2);
            margin-right: 2px;
        }
        .btn-amber {
            background-color: var(--color-amber);
            color: var(--color-ink);
            border: none;
            border-radius: var(--radius-pill);
            padding: 10px 22px;
            font-weight: 700;
            font-size: 0.95rem;
            line-height: 1.4;
            cursor: pointer;
            transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .btn-amber:hover {
            background-color: var(--color-amber-dark);
            color: var(--color-ink);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(245, 165, 36, 0.28);
        }
        .btn-amber:active {
            transform: translateY(0);
            box-shadow: inset 0 2px 4px rgba(26, 23, 20, 0.2);
        }
        .btn-outline-ink {
            background-color: transparent;
            color: var(--color-ink);
            border: 1.5px solid var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 9px 22px;
            font-weight: 700;
            font-size: 0.95rem;
            line-height: 1.4;
            cursor: pointer;
            transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .btn-outline-ink:hover {
            background-color: var(--color-ink);
            color: #fff;
            border-color: var(--color-ink);
        }
        .chip-nav {
            display: flex;
            flex-wrap: nowrap;
            gap: 6px;
            overflow-x: auto;
            overflow-y: hidden;
            padding: 6px 0 2px;
            scrollbar-width: thin;
            scrollbar-color: var(--color-border) transparent;
            -webkit-overflow-scrolling: touch;
        }
        .chip-nav::-webkit-scrollbar {
            height: 4px;
        }
        .chip-nav::-webkit-scrollbar-thumb {
            background: var(--color-border);
            border-radius: 4px;
        }
        .chip-nav a {
            flex: 0 0 auto;
            border: 1.5px solid var(--color-ink);
            background-color: transparent;
            color: var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 0.85rem;
            font-weight: 500;
            transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .chip-nav a:hover {
            border-color: var(--color-amber);
            background-color: rgba(245, 165, 36, 0.08);
            color: var(--color-ink);
            box-shadow: 0 0 0 3px rgba(245, 165, 36, 0.12);
        }
        .chip-nav a.active {
            background-color: var(--color-amber);
            border-color: var(--color-amber);
            color: var(--color-ink);
            font-weight: 700;
            box-shadow: 0 2px 8px rgba(245, 165, 36, 0.22);
        }
        /* Breadcrumb */
        .breadcrumb-resource {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--color-moss);
            margin: 16px 0 0;
            padding: 0;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb-resource li {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-resource li + li::before {
            content: '/';
            color: var(--color-border);
            font-size: 0.8rem;
        }
        .breadcrumb-resource a {
            color: var(--color-moss);
        }
        .breadcrumb-resource a:hover {
            color: var(--color-amber-dark);
        }
        .breadcrumb-resource .current {
            color: var(--color-ink);
            font-weight: 600;
        }
        /* Section general */
        .section-pad {
            padding: var(--section-padding) 0;
        }
        .section-pad-sm {
            padding: clamp(28px, 4vw, 48px) 0;
        }
        .bg-paper-alt {
            background-color: #fff;
        }
        .bg-spider-deep {
            background-color: var(--color-spider);
            color: rgba(250, 248, 245, 0.88);
        }
        .bg-spider-deep h1,
        .bg-spider-deep h2,
        .bg-spider-deep h3 {
            color: #fff;
        }
        .border-top-ink {
            border-top: 2px solid var(--color-ink);
        }
        /* Card base */
        .card-resource {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
            overflow: hidden;
            position: relative;
        }
        .card-resource:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(245, 165, 36, 0.35);
        }
        .card-resource::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--color-amber);
            opacity: 0;
            transition: opacity var(--transition-fast);
        }
        .card-resource:hover::before {
            opacity: 1;
        }
        /* Resource list item */
        .resource-list-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }
        .resource-list-item .resource-img {
            flex: 0 0 220px;
            border-radius: var(--radius-img);
            overflow: hidden;
            aspect-ratio: 4 / 3;
            background-color: var(--color-paper);
        }
        .resource-list-item .resource-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-img);
        }
        .resource-list-item .resource-body {
            flex: 1;
            min-width: 0;
            padding: 4px 0;
        }
        .resource-list-item .resource-title {
            font-family: var(--font-serif);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-ink);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .resource-list-item .resource-summary {
            font-size: 0.92rem;
            color: rgba(26, 23, 20, 0.72);
            line-height: 1.75;
            margin-bottom: 10px;
        }
        .resource-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 0.8rem;
            color: var(--color-moss);
        }
        .resource-meta .resource-date {
            font-family: var(--font-mono);
            color: var(--color-moss);
        }
        .resource-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background-color: rgba(94, 122, 106, 0.1);
            color: var(--color-moss);
            border: 1px solid rgba(94, 122, 106, 0.25);
            border-radius: var(--radius-pill);
            padding: 2px 12px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        /* Filter chips */
        .filter-chip-row {
            display: flex;
            flex-wrap: nowrap;
            gap: 8px;
            overflow-x: auto;
            padding: 4px 0 8px;
            scrollbar-width: thin;
            scrollbar-color: var(--color-border) transparent;
            -webkit-overflow-scrolling: touch;
        }
        .filter-chip-row::-webkit-scrollbar {
            height: 4px;
        }
        .filter-chip-row::-webkit-scrollbar-thumb {
            background: var(--color-border);
            border-radius: 4px;
        }
        .filter-chip {
            flex: 0 0 auto;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background-color: var(--color-card);
            border: 1.5px solid var(--color-border);
            color: var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            transition: border-color var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .filter-chip:hover {
            border-color: var(--color-amber);
            background-color: rgba(245, 165, 36, 0.08);
            color: var(--color-ink);
            box-shadow: 0 0 0 3px rgba(245, 165, 36, 0.1);
        }
        .filter-chip.active {
            background-color: var(--color-amber);
            border-color: var(--color-amber);
            color: var(--color-ink);
            font-weight: 700;
            box-shadow: 0 2px 8px rgba(245, 165, 36, 0.2);
        }
        /* Side data card */
        .side-category-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .side-category-nav a {
            display: block;
            padding: 8px 16px;
            border: 1.5px solid var(--color-border);
            border-radius: 10px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-ink);
            background-color: var(--color-card);
            transition: border-color var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .side-category-nav a:hover {
            border-color: var(--color-amber);
            background-color: rgba(245, 165, 36, 0.06);
            color: var(--color-ink);
            box-shadow: 0 0 0 3px rgba(245, 165, 36, 0.08);
        }
        .side-category-nav a.active {
            background-color: var(--color-amber);
            border-color: var(--color-amber);
            color: var(--color-ink);
            font-weight: 700;
            box-shadow: 0 2px 8px rgba(245, 165, 36, 0.18);
        }
        .data-metric-card {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px 18px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }
        .data-metric-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .data-metric-card .metric-value {
            font-family: var(--font-mono);
            font-size: 1.85rem;
            font-weight: 700;
            color: var(--color-amber);
            letter-spacing: -0.02em;
            margin-bottom: 4px;
        }
        .data-metric-card .metric-label {
            font-size: 0.85rem;
            color: var(--color-moss);
            font-weight: 500;
        }
        /* Resource tool card */
        .tool-feature-card {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
        }
        .tool-feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(245, 165, 36, 0.3);
        }
        .tool-feature-card .tool-img {
            aspect-ratio: 4 / 3;
            overflow: hidden;
            background-color: var(--color-paper);
        }
        .tool-feature-card .tool-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .tool-feature-card .tool-body {
            padding: 16px 18px 18px;
        }
        .tool-feature-card .tool-title {
            font-family: var(--font-serif);
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--color-ink);
        }
        .tool-feature-card .tool-desc {
            font-size: 0.88rem;
            color: rgba(26, 23, 20, 0.68);
            line-height: 1.7;
            margin-bottom: 0;
        }
        /* FAQ accordion custom */
        .accordion-resource .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card) !important;
            margin-bottom: 10px;
            overflow: hidden;
            background-color: var(--color-card);
            box-shadow: none;
        }
        .accordion-resource .accordion-button {
            font-family: var(--font-sans);
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--color-ink);
            background-color: #fff;
            padding: 16px 20px;
            border: none;
            box-shadow: none;
            transition: color var(--transition-fast), background-color var(--transition-fast);
        }
        .accordion-resource .accordion-button:not(.collapsed) {
            color: var(--color-amber);
            background-color: var(--color-paper);
            box-shadow: none;
        }
        .accordion-resource .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(245, 165, 36, 0.2);
            border-radius: 0;
        }
        .accordion-resource .accordion-button::after {
            background-image: none;
            content: '\F282';
            font-family: 'bootstrap-icons';
            font-size: 1rem;
            color: var(--color-moss);
            transition: transform var(--transition-fast), color var(--transition-fast);
        }
        .accordion-resource .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            color: var(--color-amber);
        }
        .accordion-resource .accordion-body {
            padding: 16px 20px 20px;
            background-color: var(--color-paper);
            border-top: 1px solid var(--color-border);
            font-size: 0.9rem;
            color: rgba(26, 23, 20, 0.72);
            line-height: 1.8;
        }
        /* CTA section */
        .cta-subscribe {
            background-color: var(--color-spider);
            padding: clamp(48px, 6vw, 72px) 0;
            border-radius: 0;
        }
        .cta-subscribe h2 {
            color: #fff;
        }
        .cta-subscribe p {
            color: rgba(250, 248, 245, 0.72);
        }
        .cta-subscribe .form-control {
            background-color: rgba(250, 248, 245, 0.08);
            border: 1.5px solid rgba(250, 248, 245, 0.25);
            color: #fff;
            border-radius: var(--radius-pill);
            padding: 10px 18px;
            transition: border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .cta-subscribe .form-control::placeholder {
            color: rgba(250, 248, 245, 0.45);
        }
        .cta-subscribe .form-control:focus {
            background-color: rgba(250, 248, 245, 0.12);
            border-color: var(--color-amber);
            box-shadow: 0 0 0 3px rgba(245, 165, 36, 0.15);
            outline: none;
        }
        /* Footer */
        .site-footer {
            background-color: var(--color-ink);
            color: rgba(250, 248, 245, 0.78);
            padding: clamp(48px, 6vw, 72px) 0 24px;
        }
        .site-footer .footer-brand {
            font-family: var(--font-serif);
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            display: inline-block;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand:hover {
            color: var(--color-amber);
        }
        .site-footer h3 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .site-footer .footer-links a {
            color: rgba(250, 248, 245, 0.68);
            font-size: 0.88rem;
            transition: color var(--transition-fast), padding-left var(--transition-fast);
        }
        .site-footer .footer-links a:hover {
            color: var(--color-amber);
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(250, 248, 245, 0.15);
            margin-top: 32px;
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(250, 248, 245, 0.48);
        }
        .site-footer .footer-bottom a {
            color: rgba(250, 248, 245, 0.6);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--color-amber);
        }
        /* Responsive */
        @media (max-width: 991.98px) {
            .resource-list-item {
                flex-direction: column;
            }
            .resource-list-item .resource-img {
                flex: 0 0 auto;
                width: 100%;
            }
            .side-category-nav {
                flex-direction: row;
                flex-wrap: nowrap;
                overflow-x: auto;
                gap: 6px;
                padding-bottom: 4px;
            }
            .side-category-nav a {
                flex: 0 0 auto;
                white-space: nowrap;
            }
        }
        @media (max-width: 767.98px) {
            .header-top {
                gap: 10px;
            }
            .logo-brand {
                font-size: 1.35rem;
            }
            .btn-amber {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
            .chip-nav a {
                padding: 5px 12px;
                font-size: 0.78rem;
            }
            .resource-list-item .resource-title {
                font-size: 1.05rem;
            }
            .data-metric-card .metric-value {
                font-size: 1.5rem;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }
        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .header-inner {
                padding: 10px 0 8px;
            }
            .logo-brand {
                font-size: 1.2rem;
                gap: 5px;
            }
            .logo-brand .logo-dot {
                width: 8px;
                height: 8px;
            }
            .btn-amber {
                padding: 7px 13px;
                font-size: 0.8rem;
                gap: 3px;
            }
            .chip-nav a {
                padding: 4px 10px;
                font-size: 0.72rem;
                border-width: 1px;
            }
            .filter-chip {
                padding: 5px 12px;
                font-size: 0.78rem;
            }
            .resource-list-item .resource-summary {
                font-size: 0.85rem;
            }
            .tool-feature-card .tool-body {
                padding: 12px 14px 14px;
            }
        }

/* roulang page: category6 */
:root {
            --color-ink: #1A1714;
            --color-amber: #F5A524;
            --color-amber-dark: #D98E1F;
            --color-spider: #2A2622;
            --color-paper: #FAF8F5;
            --color-moss: #5E7A6A;
            --color-alert: #C7432E;
            --color-border: #E5DFD7;
            --color-card: #FFFFFF;
            --shadow-card: rgba(26, 23, 20, 0.06) 0 8px 28px;
            --shadow-card-hover: rgba(26, 23, 20, 0.12) 0 14px 36px;
            --radius-card: 12px;
            --radius-pill: 999px;
            --radius-img: 8px;
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STSong', 'SimSun', serif;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Helvetica Neue', Arial, sans-serif;
            --font-mono: 'SFMono-Regular', 'Menlo', 'Consolas', 'Liberation Mono', monospace;
            --section-padding: clamp(40px, 6vw, 72px);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--color-paper);
            color: var(--color-ink);
            line-height: 1.8;
            letter-spacing: 0.01em;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--color-ink);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-amber-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--color-amber);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }
        /* Header / Nav */
        .site-header {
            background-color: #fff;
            border-bottom: 2px solid var(--color-ink);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(26, 23, 20, 0.04);
        }
        .header-inner {
            padding: 12px 0 10px;
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .logo-brand {
            font-family: var(--font-serif);
            font-size: 1.65rem;
            font-weight: 800;
            color: var(--color-ink);
            letter-spacing: 0.03em;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .logo-brand:hover {
            color: var(--color-ink);
        }
        .logo-brand .logo-dot {
            width: 10px;
            height: 10px;
            background: var(--color-amber);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 0 3px rgba(245, 165, 36, 0.2);
            margin-right: 2px;
        }
        .btn-amber {
            background-color: var(--color-amber);
            color: var(--color-ink);
            border: none;
            border-radius: var(--radius-pill);
            padding: 10px 22px;
            font-weight: 700;
            font-size: 0.95rem;
            line-height: 1.4;
            cursor: pointer;
            transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .btn-amber:hover {
            background-color: var(--color-amber-dark);
            color: var(--color-ink);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(245, 165, 36, 0.28);
        }
        .btn-amber:active {
            transform: translateY(0);
            box-shadow: inset 0 2px 4px rgba(26, 23, 20, 0.2);
        }
        .btn-outline-ink {
            background-color: transparent;
            color: var(--color-ink);
            border: 1.5px solid var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 9px 22px;
            font-weight: 700;
            font-size: 0.95rem;
            line-height: 1.4;
            cursor: pointer;
            transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .btn-outline-ink:hover {
            background-color: var(--color-ink);
            color: #fff;
            border-color: var(--color-ink);
        }
        .chip-nav {
            display: flex;
            flex-wrap: nowrap;
            gap: 6px;
            overflow-x: auto;
            overflow-y: hidden;
            padding: 6px 0 2px;
            scrollbar-width: thin;
            scrollbar-color: var(--color-border) transparent;
            -webkit-overflow-scrolling: touch;
        }
        .chip-nav::-webkit-scrollbar {
            height: 4px;
        }
        .chip-nav::-webkit-scrollbar-thumb {
            background: var(--color-border);
            border-radius: 4px;
        }
        .chip-nav a {
            flex: 0 0 auto;
            border: 1.5px solid var(--color-ink);
            background-color: transparent;
            color: var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 0.85rem;
            transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
        }
        .chip-nav a:hover {
            background-color: rgba(245, 165, 36, 0.08);
            border-color: var(--color-amber);
            color: var(--color-ink);
        }
        .chip-nav a.active {
            background-color: var(--color-amber);
            border-color: var(--color-amber);
            color: var(--color-ink);
            font-weight: 700;
        }
        /* Main sections */
        main {
            padding-bottom: var(--section-padding);
        }
        section {
            padding-top: var(--section-padding);
            padding-bottom: var(--section-padding);
        }
        .section-title {
            margin-bottom: 2rem;
        }
        .section-title h2 {
            font-family: var(--font-serif);
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 700;
            color: var(--color-ink);
            margin-bottom: 0.75rem;
        }
        .section-title p {
            color: var(--color-ink);
            opacity: 0.75;
            margin-bottom: 0;
        }
        /* Case header */
        .case-header {
            background-color: #fff;
            border-bottom: 1px solid var(--color-border);
            padding-top: 2rem;
            padding-bottom: 2rem;
        }
        .breadcrumb-custom .breadcrumb {
            margin-bottom: 0.75rem;
        }
        .breadcrumb-custom .breadcrumb-item a {
            color: var(--color-ink);
            text-decoration: none;
        }
        .breadcrumb-custom .breadcrumb-item a:hover {
            color: var(--color-amber-dark);
        }
        .breadcrumb-custom .breadcrumb-item.active {
            color: var(--color-amber);
            font-weight: 600;
        }
        .case-header h1 {
            font-family: var(--font-serif);
            font-size: clamp(2rem, 4vw, 2.6rem);
            font-weight: 800;
            margin-bottom: 0;
            color: var(--color-ink);
        }
        /* Intro */
        .case-intro {
            padding-top: 1.5rem;
            padding-bottom: 1.5rem;
        }
        .case-intro .intro-text {
            max-width: 800px;
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--color-ink);
            opacity: 0.85;
            margin: 0;
        }
        /* Filter chips */
        .filter-section {
            padding-top: 1rem;
            padding-bottom: 1rem;
        }
        .filter-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .filter-chip {
            display: inline-block;
            border: 1.5px solid var(--color-ink);
            background-color: transparent;
            color: var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 6px 18px;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
            user-select: none;
        }
        .filter-chip:hover {
            background-color: rgba(245, 165, 36, 0.08);
            border-color: var(--color-amber);
        }
        .filter-chip.active {
            background-color: var(--color-amber);
            border-color: var(--color-amber);
            color: var(--color-ink);
        }
        /* Case list */
        .case-list-section {
            padding-top: 1.5rem;
            padding-bottom: 3rem;
        }
        .case-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .case-card {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
        }
        .case-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--color-amber);
        }
        .case-card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }
        .case-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .case-card-content {
            padding: 1.25rem 1.5rem 1.5rem;
        }
        .case-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px 12px;
            margin-bottom: 0.75rem;
        }
        .case-date {
            font-family: var(--font-mono);
            font-size: 0.8rem;
            color: var(--color-moss);
            font-weight: 600;
        }
        .case-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .tag {
            display: inline-block;
            background-color: rgba(94, 122, 106, 0.12);
            color: var(--color-moss);
            border-radius: var(--radius-pill);
            padding: 2px 10px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        .case-card h2 {
            font-family: var(--font-serif);
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--color-ink);
        }
        .case-card h2 a {
            color: inherit;
            text-decoration: none;
        }
        .case-card h2 a:hover {
            color: var(--color-amber-dark);
        }
        .case-card p {
            font-size: 0.95rem;
            color: var(--color-ink);
            opacity: 0.8;
            margin-bottom: 0;
            line-height: 1.7;
        }
        @media (min-width: 768px) {
            .case-card {
                flex-direction: row;
            }
            .case-card-img {
                width: 280px;
                aspect-ratio: 4 / 3;
                flex-shrink: 0;
            }
            .case-card-img img {
                height: 100%;
                width: 100%;
            }
            .case-card-content {
                flex: 1;
                padding: 1.5rem 1.75rem;
            }
        }
        /* Support A */
        .support-a {
            background-color: #fff;
        }
        .side-nav-card {
            background-color: var(--color-paper);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 1.25rem 1.5rem;
            height: 100%;
            box-shadow: var(--shadow-card);
        }
        .side-nav-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--color-ink);
        }
        .side-nav-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .side-nav-chips a {
            display: inline-block;
            border: 1.5px solid var(--color-ink);
            background-color: transparent;
            color: var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 5px 15px;
            font-size: 0.8rem;
            font-weight: 600;
            transition: background-color var(--transition-fast), border-color var(--transition-fast);
        }
        .side-nav-chips a:hover {
            background-color: rgba(245, 165, 36, 0.08);
            border-color: var(--color-amber);
        }
        .data-card-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            height: 100%;
        }
        .data-card {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 1.25rem;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }
        .data-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .data-number {
            display: block;
            font-family: var(--font-mono);
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-amber);
            line-height: 1.2;
        }
        .data-unit {
            display: block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-moss);
            margin-top: 0.2rem;
        }
        .data-card p {
            font-size: 0.85rem;
            color: var(--color-ink);
            opacity: 0.75;
            margin: 0.5rem 0 0;
            line-height: 1.6;
        }
        @media (max-width: 767px) {
            .data-card-grid {
                grid-template-columns: 1fr;
            }
        }
        /* Support B */
        .support-b {
            padding-bottom: 3rem;
        }
        .resource-card {
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .resource-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--color-amber);
        }
        .resource-card img {
            aspect-ratio: 4 / 3;
            width: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .resource-card-body {
            padding: 1.25rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .resource-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--color-ink);
        }
        .resource-card p {
            font-size: 0.9rem;
            color: var(--color-ink);
            opacity: 0.75;
            margin-bottom: 1rem;
            flex: 1;
        }
        .link-arrow {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-amber-dark);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .link-arrow:hover {
            color: var(--color-ink);
        }
        /* FAQ */
        .faq-section {
            background-color: #fff;
        }
        .custom-accordion .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .custom-accordion .accordion-button {
            background-color: var(--color-card);
            color: var(--color-ink);
            font-weight: 700;
            font-size: 1rem;
            padding: 1rem 1.25rem;
            border-radius: 0;
            transition: background-color var(--transition-fast), color var(--transition-fast);
        }
        .custom-accordion .accordion-button:not(.collapsed) {
            background-color: var(--color-paper);
            color: var(--color-amber-dark);
            box-shadow: none;
        }
        .custom-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: var(--color-amber);
        }
        .custom-accordion .accordion-button::after {
            filter: invert(0.7);
        }
        .custom-accordion .accordion-body {
            background-color: var(--color-paper);
            color: var(--color-ink);
            padding: 1rem 1.25rem 1.25rem;
            line-height: 1.7;
        }
        /* More section */
        .more-section {
            padding-top: 1.5rem;
            padding-bottom: var(--section-padding);
        }
        /* Footer */
        .site-footer {
            background-color: var(--color-spider);
            color: rgba(250, 248, 245, 0.9);
            padding: 48px 0 0;
            font-size: 0.9rem;
        }
        .site-footer .footer-brand {
            font-family: var(--font-serif);
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            display: inline-block;
            margin-bottom: 0.75rem;
        }
        .site-footer .footer-brand:hover {
            color: var(--color-amber);
        }
        .site-footer h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-amber);
            margin-bottom: 1rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        .footer-links a {
            color: rgba(250, 248, 245, 0.75);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--color-amber);
        }
        .footer-bottom {
            border-top: 1px solid rgba(250, 248, 245, 0.15);
            margin-top: 2rem;
            padding: 1.2rem 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 10px;
            font-size: 0.85rem;
            color: rgba(250, 248, 245, 0.6);
        }
        .footer-bottom a {
            color: rgba(250, 248, 245, 0.6);
            text-decoration: none;
        }
        .footer-bottom a:hover {
            color: var(--color-amber);
        }
        @media (max-width: 575px) {
            .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
        }

/* roulang page: category7 */
:root {
            --color-ink: #1A1714;
            --color-amber: #F5A524;
            --color-amber-dark: #D98E1F;
            --color-spider: #2A2622;
            --color-paper: #FAF8F5;
            --color-moss: #5E7A6A;
            --color-alert: #C7432E;
            --color-border: #E5DFD7;
            --color-card: #FFFFFF;
            --shadow-card: rgba(26, 23, 20, 0.06) 0 8px 28px;
            --shadow-card-hover: rgba(26, 23, 20, 0.12) 0 14px 36px;
            --radius-card: 12px;
            --radius-pill: 999px;
            --radius-img: 8px;
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STSong', 'SimSun', serif;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Helvetica Neue', Arial, sans-serif;
            --font-mono: 'SFMono-Regular', 'Menlo', 'Consolas', 'Liberation Mono', monospace;
            --section-padding: clamp(40px, 6vw, 72px);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-paper);
            color: var(--color-ink);
            line-height: 1.8;
            letter-spacing: 0.01em;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover {
            color: var(--color-amber-dark);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }

        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--color-amber);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* 页面通用标题 */
        .section-eyebrow {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            color: var(--color-moss);
            text-transform: uppercase;
            margin-bottom: 0.5rem;
        }

        .section-title {
            font-family: var(--font-serif);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.01em;
            color: var(--color-ink);
            margin-bottom: 1rem;
            font-size: clamp(1.6rem, 3vw, 2.2rem);
        }

        .section-lead {
            font-size: 1rem;
            color: #4a4440;
            line-height: 1.9;
            max-width: 820px;
        }

        /* Header / Nav */
        .site-header {
            background-color: #fff;
            border-bottom: 2px solid var(--color-ink);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(26, 23, 20, 0.04);
        }

        .header-inner {
            padding: 12px 0 10px;
        }

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

        .logo-brand {
            font-family: var(--font-serif);
            font-size: 1.65rem;
            font-weight: 800;
            color: var(--color-ink);
            letter-spacing: 0.03em;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .logo-brand:hover {
            color: var(--color-ink);
        }

        .logo-brand .logo-dot {
            width: 10px;
            height: 10px;
            background: var(--color-amber);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 0 3px rgba(245, 165, 36, 0.2);
            margin-right: 2px;
        }

        .btn-amber {
            background-color: var(--color-amber);
            color: var(--color-ink);
            border: none;
            border-radius: var(--radius-pill);
            padding: 10px 22px;
            font-weight: 700;
            font-size: 0.95rem;
            line-height: 1.4;
            cursor: pointer;
            transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .btn-amber:hover {
            background-color: var(--color-amber-dark);
            color: var(--color-ink);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(245, 165, 36, 0.28);
        }

        .btn-amber:active {
            transform: translateY(0);
            box-shadow: inset 0 2px 4px rgba(26, 23, 20, 0.2);
        }

        .btn-outline-ink {
            background-color: transparent;
            color: var(--color-ink);
            border: 1.5px solid var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 9px 22px;
            font-weight: 700;
            font-size: 0.95rem;
            line-height: 1.4;
            cursor: pointer;
            transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .btn-outline-ink:hover {
            background-color: var(--color-ink);
            color: #fff;
            border-color: var(--color-ink);
        }

        .chip-nav {
            display: flex;
            flex-wrap: nowrap;
            gap: 6px;
            overflow-x: auto;
            overflow-y: hidden;
            padding: 6px 0 2px;
            scrollbar-width: thin;
            scrollbar-color: var(--color-border) transparent;
            -webkit-overflow-scrolling: touch;
        }

        .chip-nav::-webkit-scrollbar {
            height: 4px;
        }

        .chip-nav::-webkit-scrollbar-thumb {
            background: var(--color-border);
            border-radius: 4px;
        }

        .chip-nav a {
            flex: 0 0 auto;
            border: 1.5px solid var(--color-ink);
            background-color: transparent;
            color: var(--color-ink);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 0.85rem;
            font-weight: 600;
            white-space: nowrap;
            transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
        }

        .chip-nav a:hover {
            border-color: var(--color-amber);
            background-color: rgba(245, 165, 36, 0.08);
            color: var(--color-ink);
        }

        .chip-nav a.active {
            background-color: var(--color-amber);
            border-color: var(--color-amber);
            color: var(--color-ink);
            box-shadow: 0 4px 10px rgba(245, 165, 36, 0.25);
        }

        /* Breadcrumb */
        .breadcrumb {
            margin-bottom: 0;
            padding: 0;
            background: transparent;
            font-size: 0.85rem;
            color: #6b625c;
        }

        .breadcrumb-item a {
            color: var(--color-moss);
            font-weight: 500;
        }

        .breadcrumb-item a:hover {
            color: var(--color-amber-dark);
        }

        .breadcrumb-item.active {
            color: var(--color-ink);
            font-weight: 600;
        }

        .breadcrumb-item+.breadcrumb-item::before {
            content: "/";
            color: var(--color-border);
            margin: 0 8px;
        }

        /* 分类页 Hero 紧凑标题 */
        .category-hero {
            background-color: #fff;
            border-bottom: 1px solid var(--color-border);
            padding: clamp(30px, 4vw, 48px) 0 24px;
        }

        .category-hero h1 {
            font-family: var(--font-serif);
            font-weight: 800;
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            letter-spacing: -0.01em;
            margin-bottom: 0.5rem;
        }

        .category-hero .category-meta {
            font-size: 0.85rem;
            color: #6b625c;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .category-hero .category-meta .live-dot {
            width: 8px;
            height: 8px;
            background: var(--color-alert);
            border-radius: 50%;
            display: inline-block;
            animation: pulse-dot 1.8s infinite;
        }

        @keyframes pulse-dot {
            0% { box-shadow: 0 0 0 0 rgba(199, 67, 46, 0.5); }
            70% { box-shadow: 0 0 0 6px rgba(199, 67, 46, 0); }
            100% { box-shadow: 0 0 0 0 rgba(199, 67, 46, 0); }
        }

        /* 分类简介 */
        .category-intro {
            padding: 24px 0 32px;
            background-color: var(--color-paper);
        }

        .category-intro p {
            font-size: 1rem;
            line-height: 1.9;
            color: #2a2622;
            max-width: 900px;
            margin-bottom: 0;
        }

        /* 筛选条 */
        .filter-bar {
            padding: 16px 0 10px;
            background-color: var(--color-paper);
        }

        .filter-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .filter-chip {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-ink);
            transition: all var(--transition-fast);
            cursor: default;
        }

        .filter-chip:hover,
        .filter-chip:focus {
            border-color: var(--color-amber);
            background-color: rgba(245, 165, 36, 0.08);
        }

        .filter-chip.active {
            background: var(--color-ink);
            border-color: var(--color-ink);
            color: #fff;
        }

        /* 内容卡片列表 */
        .content-list-section {
            padding: 24px 0 48px;
            background-color: var(--color-paper);
        }

        .faq-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 20px 24px;
            margin-bottom: 16px;
            transition: box-shadow var(--transition-base), border-color var(--transition-base), transform var(--transition-fast);
        }

        .faq-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-top: 2px solid var(--color-amber);
            transform: translateY(-2px);
        }

        .faq-card-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 0.5rem;
        }

        .faq-card-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-ink);
            margin-bottom: 0;
            flex: 1;
            min-width: 200px;
        }

        .faq-card .faq-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 0.75rem;
            color: #6b625c;
        }

        .badge-soft {
            background: #f5f0ea;
            color: var(--color-moss);
            border-radius: var(--radius-pill);
            padding: 4px 12px;
            font-weight: 600;
            font-size: 0.75rem;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .badge-amber-soft {
            background: rgba(245, 165, 36, 0.12);
            color: #9a6b0f;
            border-radius: var(--radius-pill);
            padding: 4px 12px;
            font-weight: 600;
            font-size: 0.75rem;
        }

        .faq-card .faq-excerpt {
            color: #4a4440;
            font-size: 0.95rem;
            line-height: 1.8;
            margin-bottom: 1rem;
        }

        .faq-card .faq-answer {
            margin-top: 0.75rem;
            padding-top: 0.75rem;
            border-top: 1px dashed var(--color-border);
            color: #2a2622;
            font-size: 0.95rem;
            line-height: 1.85;
            display: none;
        }

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

        .faq-card .toggle-answer {
            background: transparent;
            border: none;
            color: var(--color-moss);
            font-weight: 700;
            font-size: 0.85rem;
            padding: 0;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition-fast);
        }

        .faq-card .toggle-answer:hover {
            color: var(--color-amber-dark);
        }

        /* 支撑板块 A: 数据侧栏 */
        .support-section-a {
            padding: 48px 0;
            background-color: #fff;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .support-sidebar-title {
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 1.3rem;
            margin-bottom: 1rem;
        }

        .sidebar-nav {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .sidebar-nav li {
            margin-bottom: 8px;
        }

        .sidebar-nav a {
            display: block;
            padding: 8px 14px;
            border-radius: var(--radius-pill);
            border: 1px solid transparent;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-ink);
            transition: all var(--transition-fast);
        }

        .sidebar-nav a:hover,
        .sidebar-nav a.active {
            background-color: rgba(245, 165, 36, 0.1);
            border-color: var(--color-amber);
            color: var(--color-ink);
        }

        .metric-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 20px;
            height: 100%;
            transition: box-shadow var(--transition-base), transform var(--transition-fast);
        }

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

        .metric-value {
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--color-amber-dark);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .metric-label {
            font-size: 0.85rem;
            color: #6b625c;
            font-weight: 600;
        }

        /* 支撑板块 B: 精选资源 */
        .support-section-b {
            padding: 48px 0;
            background-color: var(--color-paper);
        }

        .resource-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), transform var(--transition-fast);
            height: 100%;
        }

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

        .resource-card img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            border-radius: 0;
        }

        .resource-card-body {
            padding: 16px 18px;
        }

        .resource-card-body h4 {
            font-size: 1rem;
            font-weight: 700;
            font-family: var(--font-serif);
            margin-bottom: 6px;
        }

        .resource-card-body p {
            font-size: 0.85rem;
            color: #5b524c;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* 支撑板块 C: 术语手风琴 */
        .support-section-c {
            padding: 48px 0;
            background-color: #fff;
            border-top: 1px solid var(--color-border);
        }

        .accordion-ink .accordion-button {
            background-color: var(--color-card);
            color: var(--color-ink);
            font-weight: 700;
            font-size: 0.95rem;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card) !important;
            box-shadow: none;
            padding: 14px 18px;
            transition: all var(--transition-fast);
        }

        .accordion-ink .accordion-button:not(.collapsed) {
            background-color: var(--color-paper);
            color: var(--color-amber-dark);
            border-color: var(--color-amber);
        }

        .accordion-ink .accordion-button:focus {
            outline: none;
            border-color: var(--color-amber);
            box-shadow: 0 0 0 3px rgba(245, 165, 36, 0.15);
        }

        .accordion-ink .accordion-button::after {
            background-image: none;
            content: "\F282";
            font-family: "bootstrap-icons";
            color: var(--color-moss);
            font-size: 1rem;
            transition: transform var(--transition-fast);
        }

        .accordion-ink .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            color: var(--color-amber-dark);
        }

        .accordion-ink .accordion-item {
            border: none;
            margin-bottom: 12px;
            background: transparent;
        }

        .accordion-ink .accordion-body {
            padding: 16px 18px;
            font-size: 0.9rem;
            line-height: 1.8;
            color: #4a4440;
            background-color: var(--color-card);
            border: 1px solid var(--color-border);
            border-top: none;
            border-radius: 0 0 var(--radius-card) var(--radius-card);
        }

        /* 查看更多 */
        .more-section {
            padding: 32px 0 56px;
            background-color: var(--color-paper);
            text-align: center;
        }

        .more-section .btn-outline-ink {
            min-width: 180px;
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-spider);
            color: rgba(250, 248, 245, 0.82);
            padding: 48px 0 24px;
            border-top: 3px solid var(--color-amber);
        }

        .footer-brand {
            font-family: var(--font-serif);
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            display: inline-block;
            margin-bottom: 0.75rem;
        }

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

        .site-footer h3 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.04em;
            margin-bottom: 1rem;
        }

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

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

        .footer-links a {
            color: rgba(250, 248, 245, 0.7);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(250, 248, 245, 0.15);
            margin-top: 32px;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.8rem;
            color: rgba(250, 248, 245, 0.6);
        }

        .footer-bottom a {
            color: rgba(250, 248, 245, 0.7);
            font-weight: 600;
        }

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

        /* 响应式 */
        @media (max-width: 991.98px) {
            .header-top {
                flex-direction: column;
                align-items: stretch;
                gap: 10px;
            }
            .chip-nav {
                gap: 8px;
            }
            .support-section-a .row {
                flex-direction: column-reverse;
            }
        }

        @media (max-width: 767.98px) {
            .section-title {
                font-size: 1.5rem;
            }
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .faq-card {
                padding: 16px 18px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .metric-value {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 575.98px) {
            .btn-amber,
            .btn-outline-ink {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
            .filter-chip {
                padding: 4px 12px;
                font-size: 0.8rem;
            }
            .faq-card-title {
                font-size: 1rem;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}