/* roulang page: index */
:root {
            --primary: #14352F;
            --primary-light: #1E4A41;
            --primary-dark: #0F2420;
            --accent: #D98E32;
            --accent-dark: #B8731A;
            --bg: #F7F3EC;
            --bg-card: #FFFFFF;
            --bg-card-hover: #FBF7EF;
            --text-primary: #1F2321;
            --text-secondary: #6B726E;
            --text-muted: #9AA09C;
            --border-light: #E6E1D8;
            --border-accent: #D98E32;
            --shadow-sm: 0 1px 3px rgba(20, 53, 47, 0.08);
            --shadow-md: 0 4px 12px rgba(20, 53, 47, 0.10);
            --shadow-lg: 0 8px 24px rgba(20, 53, 47, 0.16);
            --radius-card: 8px;
            --radius-btn: 4px;
            --radius-sm: 4px;
            --radius-tag: 4px;
            --container-max: 1200px;
            --header-height: 72px;
            --header-height-mobile: 56px;
            --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-condensed: "Barlow Condensed", "Roboto Condensed", sans-serif;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 48px;
            --spacing-xl: 72px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-primary);
            background-color: var(--bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition-base), border-color var(--transition-base), background-color var(--transition-base), opacity var(--transition-base);
        }

        a:hover {
            color: var(--accent-dark);
            text-decoration: underline;
        }

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

        button,
        input {
            font-family: var(--font-sans);
            font-size: 15px;
        }

        ul,
        ol {
            list-style: none;
        }

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

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* ========== Header ========== */
        .site-header {
            background-color: var(--primary);
            height: var(--header-height);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid transparent;
            border-image: linear-gradient(90deg, transparent, var(--accent), transparent) 1;
            transition: height var(--transition-fast);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            flex-shrink: 0;
        }

        .logo a {
            display: flex;
            flex-direction: column;
            text-decoration: none;
            color: #F7F3EC;
        }

        .logo-main {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: #F7F3EC;
            line-height: 1.2;
        }

        .logo-sub {
            font-size: 11px;
            font-weight: 400;
            letter-spacing: 1.8px;
            color: var(--accent);
            text-transform: uppercase;
            font-family: var(--font-condensed);
            border-top: 1px solid rgba(217, 142, 50, 0.4);
            padding-top: 2px;
            margin-top: 2px;
            line-height: 1.2;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0;
            height: 100%;
        }

        .main-nav ul {
            display: flex;
            align-items: center;
            height: 100%;
            gap: 0;
        }

        .main-nav li {
            position: relative;
            height: 100%;
            display: flex;
            align-items: center;
        }

        .main-nav li+li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 28px;
            background-color: rgba(247, 243, 236, 0.25);
        }

        .main-nav a {
            display: flex;
            align-items: center;
            height: 100%;
            padding: 0 24px;
            color: #F7F3EC;
            font-size: 15px;
            font-weight: 500;
            letter-spacing: 0.3px;
            transition: color var(--transition-base), background-color var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        .main-nav a:focus-visible {
            outline-offset: -2px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px 8px;
            flex-direction: column;
            gap: 5px;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
        }
        .nav-toggle .bar {
            display: block;
            width: 24px;
            height: 2px;
            background-color: #F7F3EC;
            border-radius: 2px;
            transition: transform var(--transition-base), opacity var(--transition-base);
        }
        .nav-toggle .bar:nth-child(1) {
            transform-origin: top left;
        }
        .nav-toggle .bar:nth-child(3) {
            transform-origin: bottom left;
        }
        .nav-toggle[aria-expanded="true"] .bar:nth-child(1) {
            transform: rotate(45deg) translate(2px, -1px);
        }
        .nav-toggle[aria-expanded="true"] .bar:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .nav-toggle[aria-expanded="true"] .bar:nth-child(3) {
            transform: rotate(-45deg) translate(2px, 1px);
        }

        /* ========== Hero ========== */
        .hero {
            background-color: var(--primary);
            background-image:
                radial-gradient(circle at 15% 20%, rgba(217, 142, 50, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 85% 80%, rgba(217, 142, 50, 0.05) 0%, transparent 50%),
                url('/assets/images/48534e8ea7e30bb0.jpg');
            background-size: auto, auto, cover;
            background-position: center;
            background-blend-mode: overlay, overlay, normal;
            position: relative;
            padding: 80px 0 72px;
            overflow: hidden;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
        }

        .hero .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-text {
            color: #F7F3EC;
        }

        .hero-text .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 2px;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 16px;
            font-family: var(--font-condensed);
            border-bottom: 2px solid var(--accent);
            padding-bottom: 6px;
        }

        .hero-text h1 {
            font-size: 42px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
            color: #F7F3EC;
            text-wrap: balance;
        }
        .hero-text h1 .accent-line {
            display: inline-block;
            border-bottom: 3px solid var(--accent);
            padding-bottom: 4px;
        }

        .hero-sub {
            font-size: 17px;
            line-height: 1.75;
            color: rgba(247, 243, 236, 0.85);
            margin-bottom: 32px;
            max-width: 520px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
            border: 1px solid transparent;
            letter-spacing: 0.3px;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #F7F3EC;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background-color: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
            text-decoration: none;
            transform: translateY(-1px);
        }

        .btn-secondary {
            background-color: transparent;
            color: #F7F3EC;
            border-color: #F7F3EC;
        }
        .btn-secondary:hover {
            background-color: rgba(247, 243, 236, 0.1);
            border-color: var(--accent);
            color: var(--accent);
            text-decoration: none;
        }

        .btn-accent {
            background-color: var(--accent);
            color: var(--primary);
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background-color: var(--primary);
            border-color: var(--accent);
            color: #F7F3EC;
            text-decoration: none;
            transform: translateY(-2px);
        }

        .hero-visual {
            position: relative;
            display: flex;
            justify-content: flex-end;
        }

        .hero-image-card {
            width: 100%;
            max-width: 480px;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 2px solid rgba(217, 142, 50, 0.4);
            background-color: #fff;
        }
        .hero-image-card img {
            width: 100%;
            height: auto;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .hero-floating-tags {
            position: absolute;
            bottom: 20px;
            left: -20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .floating-tag {
            background-color: rgba(20, 53, 47, 0.92);
            border: 1px solid rgba(217, 142, 50, 0.5);
            border-radius: var(--radius-sm);
            padding: 6px 14px;
            color: #F7F3EC;
            font-size: 13px;
            font-weight: 500;
            white-space: nowrap;
            letter-spacing: 0.3px;
            backdrop-filter: none;
        }
        .floating-tag span {
            color: var(--accent);
            font-weight: 700;
            font-family: var(--font-condensed);
            font-size: 15px;
        }

        /* ========== Data Strip ========== */
        .data-strip {
            background-color: var(--bg-card);
            border-bottom: 1px solid var(--border-light);
            padding: 28px 0;
            box-shadow: var(--shadow-sm);
        }
        .data-strip .container {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 24px;
        }
        .data-item {
            text-align: center;
            padding: 8px 12px;
            border-right: 1px solid var(--border-light);
        }
        .data-item:last-child {
            border-right: none;
        }
        .data-number {
            font-family: var(--font-condensed);
            font-size: 44px;
            font-weight: 700;
            line-height: 1.1;
            color: var(--accent);
            letter-spacing: 0.5px;
        }
        .data-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 4px;
            letter-spacing: 0.3px;
        }

        /* ========== Sections General ========== */
        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-alt {
            background-color: var(--bg);
        }
        .section-dark {
            background-color: var(--primary);
            color: #F7F3EC;
        }
        .section-dark .section-title {
            color: #F7F3EC;
        }
        .section-dark .section-sub {
            color: rgba(247, 243, 236, 0.75);
        }

        .section-header {
            margin-bottom: var(--spacing-lg);
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .section-header-left {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            letter-spacing: 0.3px;
        }
        .section-sub {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 560px;
            line-height: 1.7;
        }
        .section-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--accent);
            text-decoration: none;
            white-space: nowrap;
            transition: color var(--transition-base);
        }
        .section-link:hover {
            color: var(--accent-dark);
            text-decoration: underline;
        }
        .section-title .accent-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            background-color: var(--accent);
            border-radius: 50%;
            margin-right: 8px;
            vertical-align: middle;
        }

        /* ========== Cards ========== */
        .card-grid {
            display: grid;
            gap: 24px;
        }
        .card-grid-3 {
            grid-template-columns: repeat(3, 1fr);
        }
        .card-grid-4 {
            grid-template-columns: repeat(4, 1fr);
        }
        .card-grid-2 {
            grid-template-columns: repeat(2, 1fr);
        }

        .card {
            background-color: var(--bg-card);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
            border-left: 3px solid transparent;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            border-left-color: var(--accent);
            background-color: var(--bg-card-hover);
            transform: translateY(-2px);
        }
        .card-image {
            aspect-ratio: 16/9;
            overflow: hidden;
            background-color: #e8e4dc;
            position: relative;
        }
        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .card:hover .card-image img {
            transform: scale(1.04);
        }
        .card-body {
            padding: 20px 24px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--accent-dark);
            border: 1px solid var(--accent);
            border-radius: var(--radius-tag);
            padding: 2px 8px;
            letter-spacing: 0.3px;
            width: fit-content;
        }
        .card-title {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-primary);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        .card-title a {
            color: inherit;
            text-decoration: none;
        }
        .card-title a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        .card-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex-grow: 1;
        }
        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-muted);
            margin-top: auto;
            padding-top: 8px;
            border-top: 1px solid var(--border-light);
        }
        .card-meta .date {
            letter-spacing: 0.2px;
        }
        .card-meta .tag-label {
            color: var(--text-secondary);
        }

        /* ========== Focus Events ========== */
        .event-card .card-image {
            aspect-ratio: 16/10;
        }
        .event-card .card-body {
            gap: 8px;
        }
        .event-date {
            font-size: 13px;
            color: var(--accent-dark);
            font-weight: 600;
            letter-spacing: 0.3px;
        }

        /* ========== Industry List ========== */
        .industry-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: stretch;
        }
        .industry-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .industry-list-item {
            display: flex;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
            text-decoration: none;
            color: var(--text-primary);
            transition: all var(--transition-base);
        }
        .industry-list-item:hover {
            text-decoration: none;
            padding-left: 8px;
            border-bottom-color: var(--accent);
        }
        .industry-list-item .index-num {
            font-family: var(--font-condensed);
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            min-width: 36px;
            flex-shrink: 0;
        }
        .industry-list-item .item-content {
            flex-grow: 1;
        }
        .industry-list-item .item-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            line-height: 1.5;
        }
        .industry-list-item:hover .item-title {
            color: var(--accent);
        }
        .industry-list-item .item-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .industry-visual {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
        }
        .industry-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 320px;
        }
        .industry-visual .overlay-tag {
            position: absolute;
            bottom: 20px;
            left: 20px;
            background-color: rgba(20, 53, 47, 0.92);
            color: #F7F3EC;
            padding: 6px 16px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 500;
            border: 1px solid rgba(217, 142, 50, 0.5);
        }

        /* ========== Category Panel ========== */
        .category-panel {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 16px;
        }
        .category-tile {
            background-color: var(--bg-card);
            border-radius: var(--radius-card);
            padding: 20px 16px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            text-decoration: none;
            color: var(--text-primary);
            border: 1px solid transparent;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        .category-tile:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--accent);
            text-decoration: none;
            transform: translateY(-2px);
        }
        .category-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background-color: var(--primary);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            font-family: var(--font-condensed);
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }
        .category-tile:hover .category-icon {
            background-color: var(--accent);
            color: var(--primary);
        }
        .category-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: 0.3px;
        }
        .category-desc {
            font-size: 12px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* ========== Data Chart Section ========== */
        .chart-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .chart-visual {
            background-color: rgba(247, 243, 236, 0.08);
            border-radius: var(--radius-card);
            border: 1px solid rgba(217, 142, 50, 0.3);
            padding: 28px;
            min-height: 280px;
            display: flex;
            align-items: flex-end;
            gap: 16px;
            justify-content: center;
        }
        .chart-bar-wrap {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            flex: 1;
        }
        .chart-bar {
            width: 100%;
            max-width: 56px;
            background-color: var(--accent);
            border-radius: 4px 4px 0 0;
            transition: height var(--transition-slow) ease;
            min-height: 20px;
        }
        .chart-bar-label {
            font-size: 12px;
            color: rgba(247, 243, 236, 0.7);
            text-align: center;
            font-family: var(--font-condensed);
            letter-spacing: 0.5px;
        }
        .chart-text {
            color: #F7F3EC;
        }
        .chart-text h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
            color: #F7F3EC;
        }
        .chart-text p {
            font-size: 15px;
            color: rgba(247, 243, 236, 0.85);
            line-height: 1.8;
            margin-bottom: 12px;
        }
        .chart-highlight {
            font-family: var(--font-condensed);
            font-size: 48px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.1;
            display: block;
            margin-bottom: 8px;
        }

        /* ========== People Cards ========== */
        .people-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .person-card {
            background-color: var(--bg-card);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            border-left: 3px solid transparent;
        }
        .person-card:hover {
            box-shadow: var(--shadow-lg);
            border-left-color: var(--accent);
            transform: translateY(-3px);
        }
        .person-image {
            aspect-ratio: 1/1;
            overflow: hidden;
            background-color: #e8e4dc;
        }
        .person-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .person-card:hover .person-image img {
            transform: scale(1.05);
        }
        .person-body {
            padding: 16px 18px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .person-name {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
        }
        .person-info {
            font-size: 13px;
            color: var(--text-secondary);
        }
        .person-tag {
            font-size: 12px;
            color: var(--accent-dark);
            font-weight: 500;
            letter-spacing: 0.2px;
        }

        /* ========== Tech / Equipment ========== */
        .tech-layout {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 32px;
            align-items: stretch;
        }
        .tech-featured {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
            text-decoration: none;
            display: block;
        }
        .tech-featured img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 320px;
            aspect-ratio: 16/10;
        }
        .tech-featured .tech-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(20, 53, 47, 0.9));
            padding: 32px 24px 20px;
            color: #F7F3EC;
        }
        .tech-featured .tech-overlay h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .tech-featured .tech-overlay p {
            font-size: 14px;
            color: rgba(247, 243, 236, 0.85);
            line-height: 1.6;
        }
        .tech-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .tech-list-item {
            display: flex;
            gap: 16px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
            text-decoration: none;
            color: var(--text-primary);
            transition: all var(--transition-base);
            align-items: center;
        }
        .tech-list-item:hover {
            text-decoration: none;
            padding-left: 6px;
        }
        .tech-list-item .tech-thumb {
            width: 80px;
            height: 56px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background-color: #e8e4dc;
        }
        .tech-list-item .tech-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .tech-list-item .tech-info {
            flex-grow: 1;
        }
        .tech-list-item .tech-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
        }
        .tech-list-item:hover .tech-title {
            color: var(--accent);
        }
        .tech-list-item .tech-meta {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ========== Brand Intro ========== */
        .brand-intro {
            position: relative;
            padding: var(--spacing-xl) 0;
            background-color: var(--primary);
            background-image: linear-gradient(180deg, rgba(15, 36, 32, 0.3) 0%, transparent 100%);
        }
        .brand-intro .container {
            position: relative;
        }
        .brand-intro .accent-bar {
            width: 64px;
            height: 4px;
            background-color: var(--accent);
            border-radius: 2px;
            margin-bottom: 20px;
        }
        .brand-intro h2 {
            font-size: 30px;
            font-weight: 700;
            color: #F7F3EC;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .brand-intro p {
            font-size: 15px;
            color: rgba(247, 243, 236, 0.85);
            line-height: 1.9;
            max-width: 820px;
            margin-bottom: 12px;
        }
        .brand-intro .brand-stats {
            display: flex;
            gap: 40px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .brand-stat {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .brand-stat .bst-num {
            font-family: var(--font-condensed);
            font-size: 36px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
        }
        .brand-stat .bst-label {
            font-size: 13px;
            color: rgba(247, 243, 236, 0.7);
            letter-spacing: 0.3px;
        }

        /* ========== Ranking List ========== */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .ranking-row {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 16px;
            border-bottom: 1px solid var(--border-light);
            text-decoration: none;
            color: var(--text-primary);
            transition: all var(--transition-base);
            border-radius: var(--radius-sm);
        }
        .ranking-row:hover {
            background-color: var(--bg-card-hover);
            transform: translateX(4px);
            text-decoration: none;
        }
        .rank-num {
            font-family: var(--font-condensed);
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            min-width: 48px;
            text-align: center;
            flex-shrink: 0;
        }
        .rank-info {
            flex-grow: 1;
        }
        .rank-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
        }
        .rank-project {
            font-size: 12px;
            color: var(--text-muted);
        }
        .rank-hot {
            font-family: var(--font-condensed);
            font-size: 22px;
            font-weight: 700;
            color: var(--text-secondary);
            white-space: nowrap;
        }
        .rank-hot span {
            color: var(--accent);
            font-size: 14px;
            font-weight: 400;
            margin-left: 4px;
        }

        /* ========== Video/Image Cards ========== */
        .media-card .card-image {
            aspect-ratio: 16/9;
            position: relative;
        }
        .media-card .duration-badge {
            position: absolute;
            bottom: 10px;
            right: 10px;
            background-color: rgba(20, 53, 47, 0.9);
            color: #F7F3EC;
            font-size: 12px;
            padding: 3px 8px;
            border-radius: var(--radius-sm);
            font-family: var(--font-condensed);
            letter-spacing: 0.5px;
        }
        .media-card .card-body {
            gap: 6px;
        }
        .media-card .media-title {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-primary);
        }
        .media-card .media-meta {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            border-top: 2px solid var(--accent);
        }
        .faq-item {
            border-bottom: 1px solid var(--border-light);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 8px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            list-style: none;
            gap: 12px;
            transition: color var(--transition-base);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            color: var(--accent-dark);
        }
        .faq-item summary .faq-arrow {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 18px;
            transition: transform var(--transition-base);
            font-weight: 400;
        }
        .faq-item[open] summary .faq-arrow {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 8px 16px 8px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 800px;
        }

        /* ========== Subscribe CTA ========== */
        .subscribe-card {
            background-color: var(--bg);
            border: 2px solid var(--accent);
            border-radius: var(--radius-card);
            padding: 48px 48px;
            text-align: center;
            box-shadow: var(--shadow-md);
        }
        .subscribe-card h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .subscribe-card p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .subscribe-form input[type="email"] {
            flex-grow: 1;
            min-width: 240px;
            padding: 12px 16px;
            background-color: var(--bg-card);
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            font-size: 15px;
            color: var(--text-primary);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .subscribe-form input[type="email"]::placeholder {
            color: var(--text-muted);
        }
        .subscribe-form input[type="email"]:focus {
            outline: none;
            border-color: var(--accent);
            border-width: 2px;
            box-shadow: 0 0 0 3px rgba(217, 142, 50, 0.15);
        }
        .subscribe-form .btn-accent {
            padding: 12px 28px;
            font-size: 15px;
            white-space: nowrap;
        }

        /* ========== Resource Tiles ========== */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .resource-tile {
            background-color: var(--bg-card);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            text-decoration: none;
            color: var(--text-primary);
            border: 1px solid transparent;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .resource-tile:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--accent);
            text-decoration: none;
            transform: translateY(-2px);
        }
        .resource-tile .resource-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-family: var(--font-condensed);
            font-size: 16px;
            flex-shrink: 0;
        }
        .resource-tile h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
        }
        .resource-tile p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== Footer ========== */
        .site-footer {
            background-color: var(--primary-dark);
            color: rgba(247, 243, 236, 0.8);
            padding-top: 56px;
            margin-top: auto;
        }
        .site-footer .container {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
        }
        .footer-brand .logo-main {
            font-size: 20px;
            color: #F7F3EC;
            font-weight: 700;
        }
        .footer-brand .logo-sub {
            font-size: 10px;
            color: var(--accent);
            border-top-color: rgba(217, 142, 50, 0.4);
            letter-spacing: 1.5px;
        }
        .footer-brand p {
            font-size: 13px;
            color: rgba(247, 243, 236, 0.65);
            line-height: 1.7;
            margin-top: 12px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #F7F3EC;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
            border-bottom: 2px solid rgba(217, 142, 50, 0.4);
            padding-bottom: 8px;
            display: inline-block;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col a {
            color: rgba(247, 243, 236, 0.7);
            font-size: 13px;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        .footer-bottom {
            margin-top: 48px;
            padding: 20px 0;
            border-top: 1px solid rgba(247, 243, 236, 0.15);
            font-size: 12px;
            color: rgba(247, 243, 236, 0.55);
        }
        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-legal-links {
            display: flex;
            gap: 20px;
        }
        .footer-legal-links a {
            color: rgba(247, 243, 236, 0.55);
            font-size: 12px;
            text-decoration: none;
        }
        .footer-legal-links a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1199px) {
            .hero .container {
                gap: 40px;
            }
            .hero-text h1 {
                font-size: 36px;
            }
            .data-strip .container {
                gap: 16px;
            }
            .data-number {
                font-size: 36px;
            }
            .category-panel {
                grid-template-columns: repeat(3, 1fr);
            }
            .people-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tech-layout {
                grid-template-columns: 1fr;
            }
            .chart-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .industry-layout {
                grid-template-columns: 1fr;
            }
            .industry-visual img {
                min-height: 240px;
            }
        }

        @media (max-width: 991px) {
            .card-grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .container {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero {
                padding: 56px 0 56px;
            }
            .hero-visual {
                justify-content: center;
            }
            .hero-floating-tags {
                left: 10px;
                bottom: -16px;
            }
            .hero-image-card {
                max-width: 100%;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 26px;
            }
        }

        @media (max-width: 767px) {
            :root {
                --header-height: 56px;
            }
            .site-header {
                height: var(--header-height);
            }
            .logo-main {
                font-size: 18px;
            }
            .logo-sub {
                font-size: 9px;
                letter-spacing: 1.2px;
            }

            .nav-toggle {
                display: flex;
            }

            .main-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                bottom: 0;
                background-color: var(--primary);
                display: none;
                flex-direction: column;
                align-items: stretch;
                padding: 24px 24px 48px;
                overflow-y: auto;
                z-index: 999;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav ul {
                flex-direction: column;
                align-items: stretch;
                height: auto;
                gap: 0;
                width: 100%;
            }
            .main-nav li {
                height: auto;
                display: block;
            }
            .main-nav li+li::before {
                display: none;
            }
            .main-nav a {
                padding: 14px 0;
                font-size: 17px;
                border-bottom: 1px solid rgba(247, 243, 236, 0.15);
                height: auto;
                display: block;
                white-space: normal;
            }
            .main-nav a:hover {
                background-color: rgba(217, 142, 50, 0.1);
            }

            .hero {
                padding: 40px 0 48px;
            }
            .hero-text h1 {
                font-size: 24px;
                line-height: 1.4;
            }
            .hero-sub {
                font-size: 14px;
                line-height: 1.7;
            }
            .hero-actions {
                flex-direction: column;
                gap: 12px;
            }
            .btn {
                width: 100%;
                justify-content: center;
                padding: 10px 16px;
                font-size: 14px;
            }
            .hero-floating-tags {
                position: relative;
                left: 0;
                bottom: 0;
                flex-direction: row;
                flex-wrap: wrap;
                margin-top: 12px;
            }
            .floating-tag {
                font-size: 12px;
                padding: 4px 10px;
            }

            .data-strip .container {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-item {
                border-right: none;
                border-bottom: 1px solid var(--border-light);
                padding: 8px;
            }
            .data-number {
                font-size: 28px;
            }
            .data-label {
                font-size: 11px;
            }

            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 22px;
            }
            .section-sub {
                font-size: 13px;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .card-grid-3,
            .card-grid-4,
            .card-grid-2 {
                grid-template-columns: 1fr;
            }
            .card-body {
                padding: 16px 18px;
            }
            .card-title {
                font-size: 16px;
            }
            .card-summary {
                font-size: 13px;
            }

            .category-panel {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .category-tile {
                padding: 16px 12px;
                gap: 6px;
            }
            .category-icon {
                width: 36px;
                height: 36px;
                font-size: 15px;
            }
            .category-name {
                font-size: 13px;
            }
            .category-desc {
                font-size: 11px;
            }

            .chart-visual {
                padding: 16px;
                min-height: 200px;
                gap: 8px;
            }
            .chart-bar-wrap {
                gap: 4px;
            }
            .chart-bar-label {
                font-size: 10px;
            }
            .chart-highlight {
                font-size: 36px;
            }

            .people-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .person-name {
                font-size: 14px;
            }
            .person-info,
            .person-tag {
                font-size: 11px;
            }

            .tech-list-item {
                flex-wrap: wrap;
                gap: 10px;
            }
            .tech-list-item .tech-thumb {
                width: 64px;
                height: 44px;
            }
            .tech-featured img {
                min-height: 200px;
                aspect-ratio: 16/10;
            }

            .ranking-row {
                padding: 10px 8px;
                gap: 10px;
            }
            .rank-num {
                font-size: 22px;
                min-width: 36px;
            }
            .rank-title {
                font-size: 13px;
            }
            .rank-hot {
                font-size: 18px;
            }

            .subscribe-card {
                padding: 32px 20px;
            }
            .subscribe-card h2 {
                font-size: 22px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form input[type="email"] {
                min-width: 100%;
            }
            .subscribe-form .btn-accent {
                width: 100%;
            }

            .resource-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .site-footer .container {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom .container {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .footer-legal-links {
                flex-wrap: wrap;
                gap: 10px;
            }
            .industry-list-item .index-num {
                font-size: 22px;
                min-width: 28px;
            }
            .industry-list-item .item-title {
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero-text h1 {
                font-size: 20px;
            }
            .data-strip .container {
                grid-template-columns: 1fr;
                gap: 6px;
            }
            .data-item {
                border-bottom: 1px solid var(--border-light);
            }
            .people-grid {
                grid-template-columns: 1fr;
            }
            .category-panel {
                grid-template-columns: 1fr 1fr;
            }
            .chart-bar-wrap {
                gap: 2px;
            }
            .chart-bar {
                max-width: 36px;
                min-height: 14px;
            }
            .footer-brand p {
                font-size: 12px;
            }
            .site-footer .container {
                gap: 20px;
            }
            .hero-image-card {
                aspect-ratio: 4/3;
            }
            .hero-image-card img {
                aspect-ratio: 4/3;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #14352F;
            --primary-light: #1E4A41;
            --primary-dark: #0F2420;
            --accent: #D98E32;
            --accent-dark: #B8731A;
            --bg: #F7F3EC;
            --bg-card: #FFFFFF;
            --bg-card-hover: #FBF7EF;
            --text-primary: #1F2321;
            --text-secondary: #6B726E;
            --text-muted: #9AA09C;
            --border-light: #E6E1D8;
            --border-accent: #D98E32;
            --shadow-sm: 0 1px 3px rgba(20, 53, 47, 0.08);
            --shadow-md: 0 4px 12px rgba(20, 53, 47, 0.10);
            --shadow-lg: 0 8px 24px rgba(20, 53, 47, 0.16);
            --radius-card: 8px;
            --radius-btn: 4px;
            --radius-sm: 4px;
            --radius-tag: 4px;
            --container-max: 1200px;
            --header-height: 72px;
            --header-height-mobile: 56px;
            --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-condensed: "Barlow Condensed", "Roboto Condensed", sans-serif;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 48px;
            --spacing-xl: 72px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-primary);
            background-color: var(--bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition-base), border-color var(--transition-base), background-color var(--transition-base), opacity var(--transition-base);
        }

        a:hover {
            color: var(--accent-dark);
            text-decoration: underline;
        }

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

        button,
        input {
            font-family: var(--font-sans);
            font-size: 15px;
        }

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

        /* Header */
        .site-header {
            background-color: var(--primary);
            height: var(--header-height);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid transparent;
            border-image: linear-gradient(90deg, transparent, var(--accent), transparent) 1;
            transition: height var(--transition-fast);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            flex-shrink: 0;
        }

        .logo a {
            display: flex;
            flex-direction: column;
            text-decoration: none;
            color: #F7F3EC;
        }

        .logo-main {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: #F7F3EC;
            line-height: 1.2;
        }

        .logo-sub {
            font-size: 11px;
            font-weight: 400;
            letter-spacing: 1.8px;
            color: var(--accent);
            text-transform: uppercase;
            font-family: var(--font-condensed);
            border-top: 1px solid rgba(217, 142, 50, 0.4);
            padding-top: 2px;
            margin-top: 2px;
            line-height: 1.2;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0;
            height: 100%;
        }

        .main-nav ul {
            display: flex;
            align-items: center;
            height: 100%;
            gap: 0;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .main-nav li {
            position: relative;
            height: 100%;
            display: flex;
            align-items: center;
        }

        .main-nav li+li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 28px;
            background-color: rgba(247, 243, 236, 0.25);
        }

        .main-nav a {
            display: flex;
            align-items: center;
            height: 100%;
            padding: 0 24px;
            color: #F7F3EC;
            font-size: 15px;
            font-weight: 500;
            letter-spacing: 0.3px;
            transition: color var(--transition-base), background-color var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
        }

        .main-nav a:hover,
        .main-nav a.active {
            color: var(--accent);
            text-decoration: none;
            background-color: rgba(217, 142, 50, 0.06);
        }

        .main-nav a:focus-visible {
            outline-offset: -2px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: 0;
            cursor: pointer;
            padding: 8px;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            align-items: stretch;
        }

        .nav-toggle .bar {
            display: block;
            width: 24px;
            height: 2px;
            background: #F7F3EC;
            transition: transform var(--transition-base), opacity var(--transition-base);
            border-radius: 1px;
        }

        /* Page header */
        .page-header {
            background: var(--bg);
            padding: var(--spacing-lg) 0 var(--spacing-md);
            border-bottom: 1px solid var(--border-light);
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 14px;
        }

        .breadcrumb-nav a {
            color: var(--accent);
            text-decoration: none;
        }

        .breadcrumb-nav a:hover {
            color: var(--accent-dark);
            text-decoration: underline;
        }

        .breadcrumb-nav .sep {
            color: var(--text-muted);
        }

        .page-header h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--primary);
            margin-bottom: 10px;
            padding-left: 18px;
            border-left: 5px solid var(--accent);
        }

        .page-header .lead {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 780px;
            line-height: 1.9;
            margin-top: 16px;
            padding-left: 23px;
        }

        /* Main sections */
        main {
            flex: 1;
            width: 100%;
        }

        .section {
            padding: var(--spacing-lg) 0;
        }

        .section + .section {
            border-top: 1px solid var(--border-light);
        }

        .section-alt {
            background: #F1EBE1;
        }

        .section-dark {
            background: var(--primary);
            color: #F7F3EC;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .section-desc {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.9;
            max-width: 720px;
            margin-top: 8px;
        }

        .section-head {
            margin-bottom: 28px;
        }

        /* Card grid */
        .grid {
            display: grid;
            gap: 24px;
        }

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

        .grid-3 {
            grid-template-columns: repeat(3, 1fr);
        }

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

        .card {
            background: var(--bg-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-left: 4px solid var(--accent);
            background: var(--bg-card-hover);
        }

        .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            background: #E6E1D8;
        }

        .card-body {
            padding: 20px 20px 22px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            flex: 1;
        }

        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            line-height: 1.5;
            padding: 3px 9px;
            border: 1px solid var(--accent);
            color: var(--accent-dark);
            border-radius: var(--radius-tag);
            background: transparent;
            white-space: nowrap;
        }

        .card-title {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--text-primary);
            margin: 0;
        }

        .card-title a {
            color: inherit;
            text-decoration: none;
        }

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

        .card-text {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
            margin-top: auto;
            padding-top: 8px;
            border-top: 1px solid var(--border-light);
        }

        .card-date {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* Tag list */
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-list .tag {
            font-size: 14px;
            padding: 6px 14px;
            border-radius: 30px;
            background: var(--bg-card);
            border-color: var(--accent);
            color: var(--primary);
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
        }

        .tag-list .tag:hover {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        /* Feature cards */
        .feature-card {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            background: var(--bg-card);
            box-shadow: var(--shadow-md);
            min-height: 220px;
            display: flex;
            align-items: flex-end;
            color: #fff;
            text-decoration: none;
        }

        .feature-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

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

        .feature-card .overlay {
            position: relative;
            background: linear-gradient(180deg, transparent 10%, rgba(15, 36, 32, 0.9) 80%);
            padding: 28px 24px 20px;
            width: 100%;
            z-index: 1;
        }

        .feature-card .feature-title {
            font-size: 22px;
            font-weight: 700;
            color: #F7F3EC;
            line-height: 1.4;
            margin-bottom: 8px;
        }

        .feature-card .feature-meta {
            font-size: 13px;
            color: rgba(247, 243, 236, 0.75);
        }

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

        .data-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(247, 243, 236, 0.18);
            border-radius: var(--radius-card);
            padding: 24px 18px;
            text-align: center;
        }

        .data-number {
            font-family: var(--font-condensed);
            font-size: 48px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.1;
            letter-spacing: 1px;
        }

        .data-label {
            font-size: 14px;
            color: rgba(247, 243, 236, 0.75);
            margin-top: 6px;
        }

        /* CTA section */
        .cta-strip {
            background: var(--bg-card);
            border: 1px solid var(--accent);
            border-radius: var(--radius-card);
            padding: 22px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .cta-strip p {
            margin: 0;
            color: var(--text-secondary);
            font-size: 15px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            border: 1px solid transparent;
            cursor: pointer;
            font-weight: 600;
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
            text-decoration: none;
            font-size: 14px;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #F7F3EC;
        }

        .btn-primary:hover {
            background: var(--accent);
            color: var(--primary);
            text-decoration: none;
            border-color: var(--accent);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-outline:hover {
            background: rgba(20, 53, 47, 0.1);
            color: var(--primary);
            text-decoration: none;
        }

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

        .btn-accent:hover {
            background: var(--primary);
            color: var(--accent);
            transform: translateY(-2px);
            text-decoration: none;
            border-color: var(--primary);
        }

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

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

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 16px 18px;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: background var(--transition-base);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary:hover {
            background: var(--bg-card-hover);
        }

        .faq-item summary .arrow {
            color: var(--accent);
            font-size: 20px;
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

        .faq-item[open] summary .arrow {
            transform: rotate(90deg);
        }

        .faq-answer {
            padding: 0 18px 16px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
        }

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: #F7F3EC;
            margin-top: var(--spacing-lg);
            padding-top: 48px;
        }

        .site-footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
        }

        .footer-brand p {
            font-size: 13px;
            color: rgba(247, 243, 236, 0.65);
            line-height: 1.7;
            margin-top: 14px;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #F7F3EC;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

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

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

        .footer-col a {
            color: rgba(247, 243, 236, 0.7);
            font-size: 13px;
            text-decoration: none;
            transition: color var(--transition-base);
        }

        .footer-col a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .footer-bottom {
            margin-top: 32px;
            border-top: 1px solid rgba(247, 243, 236, 0.1);
            padding: 18px 0;
            font-size: 12px;
            color: rgba(247, 243, 236, 0.55);
        }

        .footer-bottom .container {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
        }

        .footer-legal-links {
            display: flex;
            gap: 18px;
        }

        .footer-legal-links a {
            color: rgba(247, 243, 236, 0.7);
            text-decoration: none;
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .grid-4,
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .container {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 56px;
            }
            .site-header .container {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--primary-dark);
                flex-direction: column;
                height: auto;
                max-height: 0;
                overflow: hidden;
                transition: max-height var(--transition-slow);
            }
            .main-nav.open {
                max-height: 420px;
                border-top: 1px solid rgba(247, 243, 236, 0.1);
            }
            .main-nav ul {
                flex-direction: column;
                align-items: stretch;
                width: 100%;
                height: auto;
            }
            .main-nav li {
                width: 100%;
                height: auto;
                display: block;
            }
            .main-nav li+li::before {
                display: none;
            }
            .main-nav a {
                padding: 14px 24px;
                border-bottom: 1px solid rgba(247, 243, 236, 0.08);
                height: auto;
                display: block;
                width: 100%;
            }
            .main-nav a.active {
                background-color: rgba(217, 142, 50, 0.12);
            }
            .page-header h1 {
                font-size: 28px;
                padding-left: 14px;
            }
            .grid-2,
            .grid-3,
            .grid-4,
            .data-grid {
                grid-template-columns: 1fr;
            }
            .cta-strip {
                flex-direction: column;
                align-items: flex-start;
            }
            .site-footer .container {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .section {
                padding: 32px 0;
            }
            .section-title {
                font-size: 24px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .logo-main {
                font-size: 18px;
            }
            .logo-sub {
                font-size: 9px;
                letter-spacing: 1px;
            }
            .page-header h1 {
                font-size: 24px;
            }
            .data-number {
                font-size: 36px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #14352F;
            --primary-light: #1E4A41;
            --primary-dark: #0F2420;
            --accent: #D98E32;
            --accent-dark: #B8731A;
            --bg: #F7F3EC;
            --bg-card: #FFFFFF;
            --bg-card-hover: #FBF7EF;
            --text-primary: #1F2321;
            --text-secondary: #6B726E;
            --text-muted: #9AA09C;
            --border-light: #E6E1D8;
            --border-accent: #D98E32;
            --shadow-sm: 0 1px 3px rgba(20, 53, 47, 0.08);
            --shadow-md: 0 4px 12px rgba(20, 53, 47, 0.10);
            --shadow-lg: 0 8px 24px rgba(20, 53, 47, 0.16);
            --radius-card: 8px;
            --radius-btn: 4px;
            --radius-sm: 4px;
            --radius-tag: 4px;
            --container-max: 1200px;
            --header-height: 72px;
            --header-height-mobile: 56px;
            --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-condensed: "Barlow Condensed", "Roboto Condensed", sans-serif;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 48px;
            --spacing-xl: 72px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-primary);
            background-color: var(--bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition-base), border-color var(--transition-base), background-color var(--transition-base), opacity var(--transition-base);
        }

        a:hover {
            color: var(--accent-dark);
            text-decoration: underline;
        }

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

        button,
        input {
            font-family: var(--font-sans);
            font-size: 15px;
        }

        ul,
        ol {
            list-style: none;
        }

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

        /* ========== Header ========== */
        .site-header {
            background-color: var(--primary);
            height: var(--header-height);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid transparent;
            border-image: linear-gradient(90deg, transparent, var(--accent), transparent) 1;
            transition: height var(--transition-fast), box-shadow var(--transition-base);
            box-shadow: 0 2px 8px rgba(20, 53, 47, 0.12);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            flex-shrink: 0;
        }

        .logo a {
            display: flex;
            flex-direction: column;
            text-decoration: none;
            color: #F7F3EC;
        }

        .logo-main {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: #F7F3EC;
            line-height: 1.2;
        }

        .logo-sub {
            font-size: 11px;
            font-weight: 400;
            letter-spacing: 1.8px;
            color: var(--accent);
            text-transform: uppercase;
            font-family: var(--font-condensed);
            border-top: 1px solid rgba(217, 142, 50, 0.4);
            padding-top: 2px;
            margin-top: 2px;
            line-height: 1.2;
        }

        .main-nav {
            display: flex;
            align-items: center;
            height: 100%;
            gap: 0;
        }

        .main-nav ul {
            display: flex;
            align-items: center;
            height: 100%;
            gap: 0;
            margin: 0;
            padding: 0;
        }

        .main-nav li {
            position: relative;
            height: 100%;
            display: flex;
            align-items: center;
            list-style: none;
        }

        .main-nav li + li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 28px;
            background-color: rgba(247, 243, 236, 0.25);
        }

        .main-nav a {
            display: flex;
            align-items: center;
            height: 100%;
            padding: 0 22px;
            color: #F7F3EC;
            font-size: 15px;
            font-weight: 500;
            letter-spacing: 0.3px;
            transition: color var(--transition-base), background-color var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
            border-bottom: 2px solid transparent;
        }

        .main-nav a:hover {
            color: var(--accent);
            text-decoration: none;
            background-color: rgba(217, 142, 50, 0.08);
        }

        .main-nav a.active {
            color: var(--accent);
            border-bottom-color: var(--accent);
            font-weight: 600;
        }

        .main-nav a:focus-visible {
            outline-offset: -2px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            flex-direction: column;
            gap: 5px;
            align-items: center;
            justify-content: center;
        }

        .nav-toggle .bar {
            display: block;
            width: 24px;
            height: 2px;
            background-color: #F7F3EC;
            border-radius: 2px;
            transition: transform var(--transition-base), opacity var(--transition-base);
        }

        .nav-toggle[aria-expanded="true"] .bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle[aria-expanded="true"] .bar:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle[aria-expanded="true"] .bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ========== Section Common ========== */
        .section {
            padding: var(--spacing-lg) 0;
            position: relative;
        }

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

        .section-dark {
            background-color: var(--primary);
            color: #F7F3EC;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }

        .section-dark .section-title {
            color: #F7F3EC;
        }

        .section-sub {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-md);
            max-width: 680px;
            line-height: 1.8;
        }

        .section-dark .section-sub {
            color: rgba(247, 243, 236, 0.7);
        }

        /* ========== Breadcrumb & Page Heading ========== */
        .page-heading-section {
            background-color: var(--bg);
            padding: var(--spacing-md) 0 var(--spacing-md);
            border-bottom: 1px solid var(--border-light);
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }

        .breadcrumb-nav a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition-base);
        }

        .breadcrumb-nav a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        .breadcrumb-nav .separator {
            color: var(--text-muted);
            font-size: 12px;
        }

        .breadcrumb-nav .current {
            color: var(--accent);
            font-weight: 500;
        }

        .page-heading-row {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding-left: 0;
        }

        .page-heading-row::before {
            content: '';
            flex-shrink: 0;
            width: 4px;
            height: 52px;
            background-color: var(--accent);
            border-radius: 2px;
            margin-top: 4px;
        }

        .page-heading-row h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin: 0;
            letter-spacing: 0.5px;
        }

        /* ========== Intro ========== */
        .page-intro {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 820px;
            margin: 0 0 var(--spacing-md) 0;
            padding-left: 20px;
            border-left: 2px solid var(--border-accent);
            padding-top: 4px;
            padding-bottom: 4px;
        }

        /* ========== Content Cards Grid ========== */
        .content-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .content-card {
            background-color: var(--bg-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
            border-left: 3px solid transparent;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .content-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-left-color: var(--accent);
            background-color: var(--bg-card-hover);
        }

        .content-card .card-image {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background-color: var(--border-light);
            position: relative;
        }

        .content-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .content-card:hover .card-image img {
            transform: scale(1.03);
        }

        .content-card .card-body {
            padding: 20px 20px 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-tag {
            display: inline-block;
            font-size: 12px;
            color: var(--accent-dark);
            border: 1px solid var(--border-accent);
            border-radius: var(--radius-tag);
            padding: 2px 10px;
            font-weight: 500;
            letter-spacing: 0.3px;
            margin-bottom: 10px;
            align-self: flex-start;
            background-color: transparent;
            transition: background-color var(--transition-fast), color var(--transition-fast);
        }

        .content-card:hover .card-tag {
            background-color: rgba(217, 142, 50, 0.1);
        }

        .card-title {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--text-primary);
            margin-bottom: 8px;
            transition: color var(--transition-base);
            letter-spacing: 0.2px;
        }

        .content-card:hover .card-title {
            color: var(--accent-dark);
        }

        .card-summary {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

        .card-meta {
            margin-top: auto;
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
            padding-top: 10px;
            border-top: 1px solid var(--border-light);
        }

        .card-meta .item-tag {
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ========== Tag Pills ========== */
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            padding: 0;
        }

        .tag-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-primary);
            background-color: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: 20px;
            padding: 8px 18px;
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: default;
            letter-spacing: 0.2px;
        }

        .tag-pill:hover {
            background-color: var(--primary);
            color: #F7F3EC;
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            text-decoration: none;
        }

        .tag-pill::before {
            content: '#';
            color: var(--accent);
            font-weight: 700;
            font-size: 13px;
        }

        .tag-pill:hover::before {
            color: var(--accent);
        }

        /* ========== Deep Read ========== */
        .deep-read-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .deep-read-main {
            grid-column: 1 / -1;
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            background-color: var(--bg-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
            border-left: 3px solid transparent;
            text-decoration: none;
            color: var(--text-primary);
        }

        .deep-read-main:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-left-color: var(--accent);
            text-decoration: none;
            color: var(--text-primary);
        }

        .deep-read-main .deep-image {
            aspect-ratio: auto;
            min-height: 280px;
            background-color: var(--border-light);
            overflow: hidden;
        }

        .deep-read-main .deep-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 280px;
        }

        .deep-read-main .deep-body {
            padding: 28px 28px 24px;
            display: flex;
            flex-direction: column;
        }

        .deep-read-main .deep-body h3 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
            color: var(--text-primary);
            letter-spacing: 0.3px;
        }

        .deep-read-main .deep-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .deep-read-main .deep-body .read-link {
            margin-top: auto;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .deep-read-main .deep-body .read-link::after {
            content: '→';
            font-size: 16px;
            transition: transform var(--transition-base);
        }

        .deep-read-main:hover .deep-body .read-link::after {
            transform: translateX(4px);
        }

        .deep-read-side {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .deep-read-card {
            background-color: var(--bg-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
            border-left: 3px solid transparent;
            display: flex;
            flex-direction: column;
            text-decoration: none;
            color: var(--text-primary);
        }

        .deep-read-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-left-color: var(--accent);
            text-decoration: none;
            color: var(--text-primary);
        }

        .deep-read-card .deep-image {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background-color: var(--border-light);
        }

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

        .deep-read-card .deep-body {
            padding: 18px 18px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .deep-read-card .deep-body h3 {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 8px;
            color: var(--text-primary);
            letter-spacing: 0.2px;
        }

        .deep-read-card .deep-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .deep-read-card .deep-body .read-link {
            margin-top: auto;
            padding-top: 8px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* ========== Stats Section ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-item {
            background-color: rgba(247, 243, 236, 0.06);
            border: 1px solid rgba(217, 142, 50, 0.25);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            transition: background-color var(--transition-base), border-color var(--transition-base);
        }

        .stat-item:hover {
            background-color: rgba(247, 243, 236, 0.1);
            border-color: var(--accent);
        }

        .stat-number {
            font-family: var(--font-condensed);
            font-size: 44px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 13px;
            color: rgba(247, 243, 236, 0.7);
            letter-spacing: 0.3px;
            line-height: 1.5;
        }

        /* ========== FAQ Section ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            border-top: 1px solid var(--border-light);
        }

        .faq-item {
            border-bottom: 1px solid var(--border-light);
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 8px 18px 0;
            cursor: pointer;
            font-size: 15px;
            font-weight: 700;
            color: var(--primary);
            list-style: none;
            transition: color var(--transition-base);
            letter-spacing: 0.2px;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--accent);
            transition: transform var(--transition-base);
            margin-left: 12px;
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            transform: rotate(45deg);
        }

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

        .faq-item .faq-answer {
            padding: 0 8px 18px 0;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 760px;
        }

        /* ========== CTA Bar ========== */
        .cta-bar {
            background-color: var(--bg-card);
            border: 1px solid var(--border-accent);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-base);
        }

        .cta-bar:hover {
            box-shadow: var(--shadow-md);
        }

        .cta-bar .cta-text {
            flex: 1;
            min-width: 220px;
        }

        .cta-bar .cta-text h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
            letter-spacing: 0.3px;
        }

        .cta-bar .cta-text p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
        }

        .cta-bar .cta-action {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .cta-bar input[type="email"] {
            background-color: var(--bg);
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            padding: 10px 16px;
            font-size: 14px;
            color: var(--text-primary);
            min-width: 220px;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .cta-bar input[type="email"]:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 2px rgba(217, 142, 50, 0.2);
        }

        .cta-bar input[type="email"]::placeholder {
            color: var(--text-muted);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--primary);
            color: #F7F3EC;
            border: 2px solid var(--primary);
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.3px;
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background-color: var(--accent);
            color: var(--primary);
            border-color: var(--accent);
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.3px;
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background-color: rgba(20, 53, 47, 0.1);
            border-color: var(--primary);
            color: var(--primary);
            text-decoration: none;
            transform: translateY(-2px);
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--accent);
            color: var(--primary);
            border: 1px solid var(--accent);
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.3px;
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-accent:hover {
            background-color: var(--primary);
            color: var(--accent);
            border-color: var(--primary);
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        /* ========== Footer ========== */
        .site-footer {
            background-color: var(--primary-dark);
            color: rgba(247, 243, 236, 0.75);
            padding: var(--spacing-lg) 0 0;
            margin-top: auto;
            flex-shrink: 0;
        }

        .site-footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: var(--spacing-md);
        }

        .footer-brand .logo {
            margin-bottom: 12px;
        }

        .footer-brand .logo-main {
            font-size: 20px;
        }

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

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(247, 243, 236, 0.6);
            margin: 0;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            margin: 0;
            padding: 0;
        }

        .footer-col li {
            margin-bottom: 8px;
            list-style: none;
        }

        .footer-col a {
            color: rgba(247, 243, 236, 0.7);
            font-size: 13px;
            text-decoration: none;
            transition: color var(--transition-base);
        }

        .footer-col a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        .footer-bottom {
            border-top: 1px solid rgba(247, 243, 236, 0.12);
            padding: 16px 0;
        }

        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            padding-bottom: 0;
            grid-template-columns: none;
        }

        .footer-bottom span {
            font-size: 12px;
            color: rgba(247, 243, 236, 0.55);
        }

        .footer-legal-links {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .footer-legal-links a {
            font-size: 12px;
            color: rgba(247, 243, 236, 0.55);
            text-decoration: none;
            transition: color var(--transition-base);
        }

        .footer-legal-links a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .stat-number {
                font-size: 36px;
            }

            .deep-read-main {
                grid-template-columns: 1fr;
            }

            .deep-read-main .deep-image {
                min-height: 220px;
            }

            .main-nav a {
                padding: 0 16px;
                font-size: 14px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 56px;
            }

            .site-header .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .nav-toggle {
                display: flex;
            }

            .main-nav {
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background-color: var(--primary);
                flex-direction: column;
                align-items: stretch;
                height: auto;
                max-height: 0;
                overflow: hidden;
                transition: max-height var(--transition-slow);
                box-shadow: 0 8px 24px rgba(20, 53, 47, 0.3);
            }

            .main-nav.open {
                max-height: 420px;
                overflow-y: auto;
            }

            .main-nav ul {
                flex-direction: column;
                align-items: stretch;
                height: auto;
                padding: 8px 0;
                gap: 0;
            }

            .main-nav li {
                height: auto;
                display: block;
                border-bottom: 1px solid rgba(247, 243, 236, 0.1);
            }

            .main-nav li + li::before {
                display: none;
            }

            .main-nav a {
                display: block;
                padding: 14px 20px;
                font-size: 15px;
                height: auto;
                border-bottom: none;
                border-left: 3px solid transparent;
            }

            .main-nav a.active {
                border-left-color: var(--accent);
                border-bottom: none;
                background-color: rgba(217, 142, 50, 0.1);
            }

            .main-nav a:hover {
                border-left-color: var(--accent);
                border-bottom: none;
            }

            .section {
                padding: var(--spacing-md) 0;
            }

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

            .page-heading-row h1 {
                font-size: 28px;
            }

            .page-heading-row::before {
                height: 40px;
                margin-top: 2px;
            }

            .content-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .deep-read-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .deep-read-side {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .stat-number {
                font-size: 32px;
            }

            .stat-item {
                padding: 18px 14px;
            }

            .cta-bar {
                flex-direction: column;
                align-items: flex-start;
                padding: 20px;
            }

            .cta-bar .cta-action {
                width: 100%;
                flex-direction: column;
                align-items: stretch;
            }

            .cta-bar input[type="email"] {
                min-width: auto;
                width: 100%;
            }

            .cta-bar .btn-primary,
            .cta-bar .btn-accent {
                width: 100%;
                justify-content: center;
            }

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

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

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

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

            .logo-sub {
                font-size: 9px;
                letter-spacing: 1.2px;
            }

            .page-heading-row h1 {
                font-size: 24px;
            }

            .page-heading-row::before {
                height: 34px;
            }

            .page-intro {
                font-size: 14px;
                padding-left: 14px;
            }

            .content-card .card-body {
                padding: 16px 14px;
            }

            .card-title {
                font-size: 15px;
            }

            .stats-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .stat-item {
                padding: 14px 12px;
            }

            .stat-number {
                font-size: 28px;
            }

            .deep-read-main .deep-body {
                padding: 18px 16px;
            }

            .deep-read-main .deep-body h3 {
                font-size: 17px;
            }

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

            .tag-pill {
                padding: 6px 14px;
                font-size: 12px;
            }

            .cta-bar {
                padding: 16px;
            }

            .cta-bar .cta-text h3 {
                font-size: 16px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #14352F;
            --primary-light: #1E4A41;
            --primary-dark: #0F2420;
            --accent: #D98E32;
            --accent-dark: #B8731A;
            --bg: #F7F3EC;
            --bg-card: #FFFFFF;
            --bg-card-hover: #FBF7EF;
            --text-primary: #1F2321;
            --text-secondary: #6B726E;
            --text-muted: #9AA09C;
            --border-light: #E6E1D8;
            --border-accent: #D98E32;
            --shadow-sm: 0 1px 3px rgba(20, 53, 47, 0.08);
            --shadow-md: 0 4px 12px rgba(20, 53, 47, 0.10);
            --shadow-lg: 0 8px 24px rgba(20, 53, 47, 0.16);
            --radius-card: 8px;
            --radius-btn: 4px;
            --radius-sm: 4px;
            --radius-tag: 4px;
            --container-max: 1200px;
            --header-height: 72px;
            --header-height-mobile: 56px;
            --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-condensed: "Barlow Condensed", "Roboto Condensed", sans-serif;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 48px;
            --spacing-xl: 72px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
        }

        :root {
            --header-height: 56px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-primary);
            background-color: var(--bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition-base), border-color var(--transition-base), background-color var(--transition-base), opacity var(--transition-base);
        }

        a:hover {
            color: var(--accent-dark);
            text-decoration: underline;
        }

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

        button,
        input {
            font-family: var(--font-sans);
            font-size: 15px;
        }

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

        /* ========== Header ========== */
        .site-header {
            background-color: var(--primary);
            height: var(--header-height);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid transparent;
            border-image: linear-gradient(90deg, transparent, var(--accent), transparent) 1;
            transition: height var(--transition-fast);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            flex-shrink: 0;
        }

        .logo a {
            display: flex;
            flex-direction: column;
            text-decoration: none;
            color: #F7F3EC;
        }

        .logo-main {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: #F7F3EC;
            line-height: 1.2;
        }

        .logo-sub {
            font-size: 11px;
            font-weight: 400;
            letter-spacing: 1.8px;
            color: var(--accent);
            text-transform: uppercase;
            font-family: var(--font-condensed);
            border-top: 1px solid rgba(217, 142, 50, 0.4);
            padding-top: 2px;
            margin-top: 2px;
            line-height: 1.2;
        }

        .main-nav {
            display: flex;
            align-items: center;
            height: 100%;
        }

        .main-nav ul {
            display: flex;
            align-items: center;
            height: 100%;
            gap: 0;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .main-nav li {
            position: relative;
            height: 100%;
            display: flex;
            align-items: center;
        }

        .main-nav li+li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 28px;
            background-color: rgba(247, 243, 236, 0.25);
        }

        .main-nav a {
            display: flex;
            align-items: center;
            height: 100%;
            padding: 0 24px;
            color: #F7F3EC;
            font-size: 15px;
            font-weight: 500;
            letter-spacing: 0.3px;
            transition: color var(--transition-base), background-color var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .main-nav a.active {
            color: var(--accent);
            background-color: rgba(217, 142, 50, 0.12);
            box-shadow: inset 0 -2px 0 var(--accent);
        }

        .main-nav a:focus-visible {
            outline-offset: -2px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            flex-direction: column;
            gap: 5px;
            align-items: center;
            justify-content: center;
        }

        .nav-toggle .bar {
            display: block;
            width: 24px;
            height: 2px;
            background-color: #F7F3EC;
            transition: all var(--transition-base);
            border-radius: 2px;
        }

        .nav-toggle[aria-expanded="true"] .bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle[aria-expanded="true"] .bar:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle[aria-expanded="true"] .bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ========== Breadcrumb ========== */
        .breadcrumb-bar {
            background-color: var(--bg);
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
        }

        .breadcrumb-bar .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .breadcrumb-nav li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb-nav li+li::before {
            content: '>';
            color: var(--text-muted);
            font-size: 13px;
        }

        .breadcrumb-nav a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition-base);
        }

        .breadcrumb-nav a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .breadcrumb-nav .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ========== Category Hero ========== */
        .category-hero {
            background-color: var(--bg);
            padding: 48px 0 32px;
            position: relative;
        }

        .category-hero .container {
            position: relative;
        }

        .category-hero-content {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding-left: 20px;
            position: relative;
        }

        .category-hero-content::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 4px;
            background-color: var(--accent);
            border-radius: 2px;
        }

        .category-hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--primary);
            margin: 0 0 12px;
            letter-spacing: 0.5px;
        }

        .category-hero .hero-lead {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 720px;
            margin: 0;
        }

        /* ========== Section Common ========== */
        .section-block {
            padding: 48px 0;
        }

        .section-block.alt-bg {
            background-color: #F0EBE2;
        }

        .section-block.dark-bg {
            background-color: var(--primary);
            color: #F7F3EC;
        }

        .section-heading {
            margin-bottom: 32px;
        }

        .section-heading h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--primary);
            margin: 0 0 8px;
        }

        .section-heading .section-sub {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
            max-width: 600px;
        }

        .dark-bg .section-heading h2 {
            color: #F7F3EC;
        }

        .dark-bg .section-heading .section-sub {
            color: rgba(247, 243, 236, 0.7);
        }

        /* ========== Cards ========== */
        .profile-card {
            background: var(--bg-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
            border: 1px solid var(--border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .profile-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-left: 3px solid var(--accent);
            background: var(--bg-card-hover);
        }

        .profile-card .card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }

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

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

        .profile-card .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .profile-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 10px;
        }

        .tag-badge {
            display: inline-block;
            border: 1px solid var(--accent);
            color: var(--accent-dark);
            font-size: 12px;
            font-weight: 500;
            padding: 2px 10px;
            border-radius: var(--radius-tag);
            line-height: 1.6;
            background: transparent;
            white-space: nowrap;
        }

        .profile-card h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--primary);
            margin: 0 0 8px;
            transition: color var(--transition-base);
        }

        .profile-card h3 a {
            color: inherit;
            text-decoration: none;
        }

        .profile-card h3 a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .profile-card .card-summary {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin: 0 0 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .profile-card .card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-light);
            padding-top: 12px;
        }

        .profile-card .card-meta .date {
            font-family: var(--font-condensed);
            letter-spacing: 0.3px;
        }

        /* ========== Feature Cards ========== */
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
            border: 1px solid var(--border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .feature-card .card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
        }

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

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

        .feature-card .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .feature-card .feature-label {
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-dark);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--primary);
            margin: 0 0 8px;
        }

        .feature-card h3 a {
            color: inherit;
            text-decoration: none;
        }

        .feature-card h3 a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .feature-card .card-summary {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin: 0;
        }

        .feature-card .card-footer {
            margin-top: auto;
            padding-top: 16px;
            border-top: 1px solid var(--border-light);
            font-size: 13px;
            color: var(--text-muted);
        }

        .feature-horizontal {
            display: flex;
            flex-direction: row;
            height: 100%;
        }

        .feature-horizontal .card-img {
            width: 50%;
            aspect-ratio: auto;
            min-height: 220px;
        }

        .feature-horizontal .card-body {
            width: 50%;
            padding: 28px;
        }

        .feature-horizontal h3 {
            font-size: 20px;
        }

        /* ========== Tags Cloud ========== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .tag-cloud .tag-pill {
            display: inline-block;
            padding: 8px 20px;
            border: 1px solid var(--border-light);
            border-radius: 999px;
            background: var(--bg-card);
            color: var(--text-primary);
            font-size: 14px;
            font-weight: 500;
            text-decoration: none;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }

        .tag-cloud .tag-pill:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
            background: var(--bg-card-hover);
            box-shadow: var(--shadow-md);
            text-decoration: none;
            transform: translateY(-2px);
        }

        /* ========== Stats ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 24px;
        }

        .stat-block {
            background: rgba(247, 243, 236, 0.06);
            border: 1px solid rgba(217, 142, 50, 0.3);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .stat-block:hover {
            background: rgba(217, 142, 50, 0.1);
            border-color: var(--accent);
        }

        .stat-block .stat-number {
            font-family: var(--font-condensed);
            font-size: 48px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--accent);
            letter-spacing: 1px;
        }

        .stat-block .stat-label {
            font-size: 14px;
            color: rgba(247, 243, 236, 0.75);
            margin-top: 6px;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-light);
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 8px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            list-style: none;
            transition: color var(--transition-base);
            gap: 16px;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '+';
            font-size: 24px;
            font-weight: 400;
            color: var(--accent);
            transition: transform var(--transition-base);
            flex-shrink: 0;
            line-height: 1;
        }

        .faq-item[open] summary::after {
            transform: rotate(45deg);
        }

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

        .faq-item .faq-answer {
            padding: 0 8px 20px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 800px;
        }

        /* ========== CTA ========== */
        .sub-cta {
            background: var(--bg-card);
            border: 2px solid var(--accent);
            border-radius: var(--radius-card);
            padding: 32px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-md);
        }

        .sub-cta h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .sub-cta p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
            max-width: 480px;
        }

        .sub-cta .cta-action {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .btn-primary-custom {
            display: inline-block;
            padding: 12px 28px;
            background-color: var(--primary);
            color: #F7F3EC;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            text-decoration: none;
            border: 2px solid var(--primary);
            transition: all var(--transition-base);
            cursor: pointer;
            line-height: 1.5;
            text-align: center;
        }

        .btn-primary-custom:hover {
            background-color: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-secondary-custom {
            display: inline-block;
            padding: 12px 28px;
            background-color: transparent;
            color: var(--primary);
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            text-decoration: none;
            border: 1px solid var(--primary);
            transition: all var(--transition-base);
            cursor: pointer;
            line-height: 1.5;
            text-align: center;
        }

        .btn-secondary-custom:hover {
            background-color: rgba(20, 53, 47, 0.1);
            text-decoration: none;
            transform: translateY(-2px);
        }

        /* ========== Footer ========== */
        .site-footer {
            background-color: var(--primary-dark);
            color: rgba(247, 243, 236, 0.85);
            padding: 48px 0 0;
            margin-top: auto;
            border-top: 2px solid var(--accent);
        }

        .site-footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            padding-bottom: 32px;
        }

        .footer-brand .logo {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            margin-bottom: 12px;
        }

        .footer-brand .logo-main {
            font-size: 20px;
            font-weight: 700;
            color: #F7F3EC;
        }

        .footer-brand .logo-sub {
            font-size: 10px;
            letter-spacing: 1.5px;
            color: var(--accent);
            border-top: 1px solid rgba(217, 142, 50, 0.4);
            padding-top: 2px;
            margin-top: 2px;
            font-family: var(--font-condensed);
        }

        .footer-brand p {
            font-size: 13px;
            color: rgba(247, 243, 236, 0.65);
            line-height: 1.7;
            margin: 0;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #F7F3EC;
            margin: 0 0 16px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul a {
            color: rgba(247, 243, 236, 0.65);
            font-size: 13px;
            text-decoration: none;
            transition: color var(--transition-base);
        }

        .footer-col ul a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .footer-col .footer-note {
            font-size: 13px;
            color: rgba(247, 243, 236, 0.65);
            line-height: 1.7;
            margin: 4px 0 0;
        }

        .footer-col .footer-link {
            display: inline-block;
            margin-top: 10px;
            color: var(--accent);
            font-size: 13px;
            text-decoration: none;
        }

        .footer-col .footer-link:hover {
            color: var(--accent-dark);
            text-decoration: underline;
        }

        .footer-bottom {
            background-color: #0A1C18;
            padding: 16px 0;
            border-top: 1px solid rgba(247, 243, 236, 0.1);
        }

        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 12px;
            color: rgba(247, 243, 236, 0.5);
        }

        .footer-legal-links {
            display: flex;
            gap: 16px;
        }

        .footer-legal-links a {
            color: rgba(247, 243, 236, 0.5);
            font-size: 12px;
            text-decoration: none;
            transition: color var(--transition-base);
        }

        .footer-legal-links a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1199px) {
            .main-nav a {
                padding: 0 16px;
                font-size: 14px;
            }
            .category-hero h1 {
                font-size: 32px;
            }
        }

        @media (max-width: 991px) {
            .site-footer .container {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .feature-horizontal {
                flex-direction: column;
            }
            .feature-horizontal .card-img {
                width: 100%;
                aspect-ratio: 16/9;
                min-height: auto;
            }
            .feature-horizontal .card-body {
                width: 100%;
                padding: 20px;
            }
        }

        @media (max-width: 767px) {
            :root {
                --header-height: 56px;
            }
            .site-header {
                height: var(--header-height-mobile);
            }
            .logo-main {
                font-size: 18px;
            }
            .logo-sub {
                font-size: 9px;
                letter-spacing: 1.2px;
            }
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: var(--header-height-mobile);
                left: 0;
                right: 0;
                background-color: var(--primary);
                max-height: 0;
                overflow: hidden;
                transition: max-height var(--transition-slow);
                flex-direction: column;
                align-items: stretch;
                box-shadow: var(--shadow-lg);
            }
            .main-nav.open {
                max-height: 420px;
            }
            .main-nav ul {
                flex-direction: column;
                align-items: stretch;
                padding: 8px 0;
            }
            .main-nav li {
                height: auto;
                display: block;
            }
            .main-nav li+li::before {
                display: none;
            }
            .main-nav a {
                padding: 14px 24px;
                font-size: 16px;
                display: block;
                height: auto;
                border-bottom: 1px solid rgba(247, 243, 236, 0.08);
            }
            .main-nav a.active {
                box-shadow: none;
                border-left: 3px solid var(--accent);
                padding-left: 21px;
            }
            .category-hero {
                padding: 32px 0 24px;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .category-hero .hero-lead {
                font-size: 15px;
            }
            .section-block {
                padding: 32px 0;
            }
            .section-heading h2 {
                font-size: 22px;
            }
            .profile-card h3 {
                font-size: 16px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-block .stat-number {
                font-size: 36px;
            }
            .sub-cta {
                padding: 24px 20px;
                flex-direction: column;
                align-items: flex-start;
            }
            .sub-cta .cta-action {
                width: 100%;
            }
            .btn-primary-custom,
            .btn-secondary-custom {
                width: 100%;
                text-align: center;
                padding: 12px 16px;
                font-size: 14px;
            }
            .site-footer .container {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom .container {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (max-width: 519px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .category-hero h1 {
                font-size: 22px;
            }
            .stats-row {
                grid-template-columns: 1fr;
            }
            .tag-cloud .tag-pill {
                padding: 6px 14px;
                font-size: 13px;
            }
            .faq-item summary {
                font-size: 15px;
                padding: 14px 4px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #14352F;
            --primary-light: #1E4A41;
            --primary-dark: #0F2420;
            --accent: #D98E32;
            --accent-dark: #B8731A;
            --bg: #F7F3EC;
            --bg-card: #FFFFFF;
            --bg-card-hover: #FBF7EF;
            --text-primary: #1F2321;
            --text-secondary: #6B726E;
            --text-muted: #9AA09C;
            --border-light: #E6E1D8;
            --border-accent: #D98E32;
            --shadow-sm: 0 1px 3px rgba(20, 53, 47, 0.08);
            --shadow-md: 0 4px 12px rgba(20, 53, 47, 0.10);
            --shadow-lg: 0 8px 24px rgba(20, 53, 47, 0.16);
            --radius-card: 8px;
            --radius-btn: 4px;
            --radius-sm: 4px;
            --radius-tag: 4px;
            --container-max: 1200px;
            --header-height: 72px;
            --header-height-mobile: 56px;
            --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-condensed: "Barlow Condensed", "Roboto Condensed", sans-serif;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 48px;
            --spacing-xl: 72px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-primary);
            background-color: var(--bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            margin: 0;
        }

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

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition-base), border-color var(--transition-base), background-color var(--transition-base), opacity var(--transition-base);
        }

        a:hover {
            color: var(--accent-dark);
            text-decoration: underline;
        }

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

        button,
        input {
            font-family: var(--font-sans);
            font-size: 15px;
        }

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

        /* ========== Header ========== */
        .site-header {
            background-color: var(--primary);
            height: var(--header-height);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid transparent;
            border-image: linear-gradient(90deg, transparent, var(--accent), transparent) 1;
            transition: height var(--transition-fast);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            flex-shrink: 0;
        }

        .logo a {
            display: flex;
            flex-direction: column;
            text-decoration: none;
            color: #F7F3EC;
        }

        .logo-main {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: #F7F3EC;
            line-height: 1.2;
        }

        .logo-sub {
            font-size: 11px;
            font-weight: 400;
            letter-spacing: 1.8px;
            color: var(--accent);
            text-transform: uppercase;
            font-family: var(--font-condensed);
            border-top: 1px solid rgba(217, 142, 50, 0.4);
            padding-top: 2px;
            margin-top: 2px;
            line-height: 1.2;
        }

        .main-nav {
            display: flex;
            align-items: center;
            height: 100%;
        }

        .main-nav ul {
            display: flex;
            align-items: center;
            height: 100%;
            gap: 0;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .main-nav li {
            position: relative;
            height: 100%;
            display: flex;
            align-items: center;
        }

        .main-nav li+li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 28px;
            background-color: rgba(247, 243, 236, 0.25);
        }

        .main-nav a {
            display: flex;
            align-items: center;
            height: 100%;
            padding: 0 24px;
            color: #F7F3EC;
            font-size: 15px;
            font-weight: 500;
            letter-spacing: 0.3px;
            transition: color var(--transition-base), background-color var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .main-nav a.active {
            color: var(--accent);
            background-color: rgba(217, 142, 50, 0.08);
        }

        .main-nav a:focus-visible {
            outline-offset: -2px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            flex-direction: column;
            gap: 5px;
        }

        .nav-toggle .bar {
            display: block;
            width: 24px;
            height: 2px;
            background-color: #F7F3EC;
            border-radius: 1px;
            transition: transform var(--transition-base), opacity var(--transition-base);
        }

        .nav-toggle[aria-expanded="true"] .bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle[aria-expanded="true"] .bar:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle[aria-expanded="true"] .bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ========== Content ========== */
        main {
            flex: 1;
            padding-bottom: var(--spacing-lg);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            padding: 20px 0 0;
            margin: 0;
            list-style: none;
        }

        .breadcrumb li+li::before {
            content: '>';
            margin-right: 8px;
            color: var(--text-muted);
        }

        .breadcrumb a {
            color: var(--text-muted);
            text-decoration: none;
        }

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

        .breadcrumb li:last-child {
            color: var(--text-secondary);
        }

        .page-h1-area {
            padding: 36px 0 28px;
            border-left: 4px solid var(--accent);
            padding-left: 20px;
            margin-bottom: 12px;
        }

        .page-h1-area h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin: 0 0 8px;
        }

        .page-h1-area .h1-sub {
            font-size: 16px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.8;
        }

        .section {
            padding: var(--spacing-lg) 0;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin: 0 0 12px;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0 0 28px;
            line-height: 1.8;
            max-width: 700px;
        }

        .data-card {
            background: var(--bg-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
            border: 1px solid transparent;
            height: 100%;
        }

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

        .data-card .card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            background-color: var(--primary-light);
        }

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

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

        .data-card .card-body {
            padding: 20px;
        }

        .data-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 12px;
        }

        .data-card .tag {
            display: inline-block;
            font-size: 12px;
            color: var(--accent-dark);
            border: 1px solid var(--accent);
            border-radius: var(--radius-tag);
            padding: 2px 10px;
            line-height: 1.5;
            background: transparent;
        }

        .data-card .card-title {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            margin: 0 0 8px;
            color: var(--text-primary);
        }

        .data-card .card-title a {
            color: var(--text-primary);
            text-decoration: none;
        }

        .data-card .card-title a:hover {
            color: var(--accent-dark);
            text-decoration: none;
        }

        .data-card .card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .data-card .card-meta {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .tag-cloud .tag-pill {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            border-radius: 20px;
            border: 1px solid var(--border-light);
            background: var(--bg-card);
            color: var(--text-secondary);
            font-size: 13px;
            transition: all var(--transition-base);
            text-decoration: none;
        }

        .tag-cloud .tag-pill:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
            background: var(--bg-card-hover);
            text-decoration: none;
            transform: translateY(-2px);
        }

        .feature-horizontal {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 24px;
            margin-bottom: 24px;
        }

        .feature-horizontal .feature-large {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            min-height: 320px;
            display: flex;
            align-items: flex-end;
        }

        .feature-horizontal .feature-large img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .feature-horizontal .feature-large .feature-overlay {
            position: relative;
            z-index: 2;
            padding: 28px;
            background: linear-gradient(transparent, rgba(20, 53, 47, 0.85));
            width: 100%;
        }

        .feature-horizontal .feature-large .feature-overlay h3 {
            color: #F7F3EC;
            font-size: 20px;
            font-weight: 700;
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .feature-horizontal .feature-large .feature-overlay p {
            color: rgba(247, 243, 236, 0.8);
            font-size: 14px;
            margin: 0 0 12px;
            line-height: 1.7;
        }

        .feature-horizontal .feature-large .feature-overlay a {
            color: var(--accent);
            font-size: 14px;
            text-decoration: none;
        }

        .feature-horizontal .feature-large .feature-overlay a:hover {
            text-decoration: underline;
        }

        .feature-vertical-stack {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .feature-vertical {
            display: flex;
            gap: 16px;
            background: var(--bg-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 16px;
            align-items: center;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
            border: 1px solid transparent;
        }

        .feature-vertical:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
            border-color: var(--accent);
        }

        .feature-vertical .feature-thumb {
            width: 90px;
            height: 70px;
            border-radius: 6px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .feature-vertical .feature-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .feature-vertical .feature-info h3 {
            font-size: 15px;
            font-weight: 700;
            margin: 0 0 4px;
            line-height: 1.5;
            color: var(--text-primary);
        }

        .feature-vertical .feature-info h3 a {
            color: inherit;
            text-decoration: none;
        }

        .feature-vertical .feature-info h3 a:hover {
            color: var(--accent-dark);
            text-decoration: none;
        }

        .feature-vertical .feature-info p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }

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

        .stat-item {
            background: var(--bg-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 24px;
            text-align: center;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
            border: 1px solid var(--border-light);
        }

        .stat-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .stat-number {
            font-family: var(--font-condensed);
            font-size: 46px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-primary);
            font-weight: 600;
            margin-bottom: 4px;
        }

        .stat-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .faq-list {
            border-top: 1px solid var(--border-light);
        }

        .faq-item {
            border-bottom: 1px solid var(--border-light);
        }

        .faq-item summary {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            padding: 18px 0;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            list-style: none;
            transition: color var(--transition-base);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '+';
            font-size: 22px;
            color: var(--accent);
            font-weight: 400;
            margin-left: 16px;
            flex-shrink: 0;
            transition: transform var(--transition-base);
        }

        .faq-item[open] summary::after {
            transform: rotate(45deg);
        }

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

        .faq-answer {
            padding: 0 0 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 850px;
        }

        .cta-small {
            background: var(--primary);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-md);
            padding: 32px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .cta-small .cta-content h2 {
            color: #F7F3EC;
            font-size: 24px;
            font-weight: 700;
            margin: 0 0 6px;
            line-height: 1.3;
        }

        .cta-small .cta-content p {
            color: rgba(247, 243, 236, 0.75);
            font-size: 14px;
            margin: 0;
            line-height: 1.7;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.3px;
            cursor: pointer;
            transition: all var(--transition-base);
            border: 1px solid transparent;
            text-decoration: none;
        }

        .btn-primary {
            background: var(--primary);
            color: #F7F3EC;
            border-color: var(--primary);
        }

        .btn-primary:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
            text-decoration: none;
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-outline:hover {
            background: rgba(20, 53, 47, 0.1);
            border-color: var(--primary);
            color: var(--primary);
            text-decoration: none;
        }

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

        .btn-accent:hover {
            background: var(--primary);
            color: #F7F3EC;
            border-color: var(--primary);
            text-decoration: none;
            transform: translateY(-2px);
        }

        /* ========== Footer ========== */
        .site-footer {
            background-color: var(--primary-dark);
            color: rgba(247, 243, 236, 0.85);
            padding-top: 48px;
            margin-top: auto;
        }

        .site-footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            padding-bottom: 40px;
        }

        .footer-brand .logo {
            margin-bottom: 16px;
        }

        .footer-brand .logo-main {
            color: #F7F3EC;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(247, 243, 236, 0.65);
            margin: 0;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #F7F3EC;
            margin: 0 0 16px;
        }

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

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

        .footer-col ul a {
            color: rgba(247, 243, 236, 0.7);
            font-size: 14px;
            text-decoration: none;
            transition: color var(--transition-base);
        }

        .footer-col ul a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .footer-bottom {
            border-top: 1px solid rgba(247, 243, 236, 0.12);
            padding: 20px 0;
        }

        .footer-bottom .container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            padding-bottom: 0;
        }

        .footer-bottom span {
            font-size: 13px;
            color: rgba(247, 243, 236, 0.55);
        }

        .footer-legal-links {
            display: flex;
            gap: 20px;
        }

        .footer-legal-links a {
            font-size: 13px;
            color: rgba(247, 243, 236, 0.55);
            text-decoration: none;
        }

        .footer-legal-links a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .main-nav a {
                padding: 0 14px;
                font-size: 14px;
            }

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

        @media (max-width: 768px) {
            :root {
                --header-height: 56px;
            }

            .site-header {
                height: var(--header-height);
            }

            .main-nav {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--primary);
                flex-direction: column;
                padding: 20px 0;
                box-shadow: var(--shadow-lg);
            }

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

            .main-nav ul {
                flex-direction: column;
                align-items: stretch;
                width: 100%;
                gap: 0;
            }

            .main-nav li {
                height: auto;
            }

            .main-nav li+li::before {
                display: none;
            }

            .main-nav a {
                padding: 14px 24px;
                height: auto;
            }

            .nav-toggle {
                display: flex;
            }

            .page-h1-area h1 {
                font-size: 28px;
            }

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

            .feature-horizontal {
                grid-template-columns: 1fr;
            }

            .feature-horizontal .feature-large {
                min-height: 240px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

            .stat-number {
                font-size: 36px;
            }

            .cta-small {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
            }

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

            .footer-bottom .container {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .page-h1-area h1 {
                font-size: 24px;
            }

            .section {
                padding: 36px 0;
            }

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

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

            .stat-number {
                font-size: 32px;
            }

            .feature-vertical {
                flex-direction: column;
                align-items: flex-start;
            }

            .feature-vertical .feature-thumb {
                width: 100%;
                height: 140px;
            }

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

            .tag-cloud {
                gap: 8px;
            }

            .tag-cloud .tag-pill {
                padding: 5px 12px;
                font-size: 12px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #14352F;
            --primary-light: #1E4A41;
            --primary-dark: #0F2420;
            --accent: #D98E32;
            --accent-dark: #B8731A;
            --bg: #F7F3EC;
            --bg-card: #FFFFFF;
            --bg-card-hover: #FBF7EF;
            --text-primary: #1F2321;
            --text-secondary: #6B726E;
            --text-muted: #9AA09C;
            --border-light: #E6E1D8;
            --border-accent: #D98E32;
            --shadow-sm: 0 1px 3px rgba(20, 53, 47, 0.08);
            --shadow-md: 0 4px 12px rgba(20, 53, 47, 0.10);
            --shadow-lg: 0 8px 24px rgba(20, 53, 47, 0.16);
            --radius-card: 8px;
            --radius-btn: 4px;
            --radius-sm: 4px;
            --radius-tag: 4px;
            --container-max: 1200px;
            --header-height: 72px;
            --header-height-mobile: 56px;
            --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-condensed: "Barlow Condensed", "Roboto Condensed", sans-serif;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 48px;
            --spacing-xl: 72px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-primary);
            background-color: var(--bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition-base), border-color var(--transition-base), background-color var(--transition-base), opacity var(--transition-base);
        }
        a:hover {
            color: var(--accent-dark);
            text-decoration: underline;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        button,
        input {
            font-family: var(--font-sans);
            font-size: 15px;
        }

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

        /* ========== Header ========== */
        .site-header {
            background-color: var(--primary);
            height: var(--header-height);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid transparent;
            border-image: linear-gradient(90deg, transparent, var(--accent), transparent) 1;
            transition: height var(--transition-fast);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            flex-shrink: 0;
        }
        .logo a {
            display: flex;
            flex-direction: column;
            text-decoration: none;
            color: #F7F3EC;
        }
        .logo-main {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: #F7F3EC;
            line-height: 1.2;
        }
        .logo-sub {
            font-size: 11px;
            font-weight: 400;
            letter-spacing: 1.8px;
            color: var(--accent);
            text-transform: uppercase;
            font-family: var(--font-condensed);
            border-top: 1px solid rgba(217, 142, 50, 0.4);
            padding-top: 2px;
            margin-top: 2px;
            line-height: 1.2;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0;
            height: 100%;
        }
        .main-nav ul {
            display: flex;
            align-items: center;
            height: 100%;
            gap: 0;
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .main-nav li {
            position: relative;
            height: 100%;
            display: flex;
            align-items: center;
        }
        .main-nav li+li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 28px;
            background-color: rgba(247, 243, 236, 0.25);
        }
        .main-nav a {
            display: flex;
            align-items: center;
            height: 100%;
            padding: 0 24px;
            color: #F7F3EC;
            font-size: 15px;
            font-weight: 500;
            letter-spacing: 0.3px;
            transition: color var(--transition-base), background-color var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        .main-nav a.active {
            color: var(--accent);
            background-color: rgba(217, 142, 50, 0.08);
        }
        .main-nav a:focus-visible {
            outline-offset: -2px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px 4px;
            flex-direction: column;
            gap: 5px;
            align-items: center;
            justify-content: center;
        }
        .nav-toggle .bar {
            display: block;
            width: 26px;
            height: 2px;
            background-color: #F7F3EC;
            transition: transform var(--transition-base), opacity var(--transition-base);
        }
        .nav-toggle .bar:nth-child(1) {
            transform-origin: top left;
        }
        .nav-toggle .bar:nth-child(3) {
            transform-origin: bottom left;
        }
        .nav-toggle[aria-expanded="true"] .bar:nth-child(1) {
            transform: rotate(45deg) translate(1px, 0);
        }
        .nav-toggle[aria-expanded="true"] .bar:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle[aria-expanded="true"] .bar:nth-child(3) {
            transform: rotate(-45deg) translate(1px, 0);
        }

        /* ========== Breadcrumb & H1 ========== */
        .page-header-section {
            background-color: var(--bg);
            padding: 40px 0 24px;
            border-bottom: 1px solid var(--border-light);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
            margin: 0 0 16px;
            padding: 0;
            list-style: none;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
        }
        .breadcrumb li+li::before {
            content: '>';
            margin: 0 6px;
            color: var(--text-muted);
            font-size: 12px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        .breadcrumb .current {
            color: var(--text-primary);
            font-weight: 500;
        }
        .h1-wrapper {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .h1-decor {
            width: 4px;
            height: 44px;
            background-color: var(--accent);
            border-radius: 2px;
            flex-shrink: 0;
        }
        .h1-wrapper h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin: 0;
            letter-spacing: 0.5px;
        }

        /* ========== Intro Section ========== */
        .intro-section {
            padding: 20px 0 0;
        }
        .intro-section .intro-text {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 860px;
            margin: 0;
        }

        /* ========== Cards Grid ========== */
        .cards-section {
            padding: 36px 0 48px;
        }
        .section-heading {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
        }
        .section-heading h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin: 0;
        }
        .section-heading .heading-accent {
            width: 48px;
            height: 3px;
            background-color: var(--accent);
            border-radius: 2px;
            margin-top: 6px;
        }
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .card-item {
            background-color: var(--bg-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
            border-left: 3px solid transparent;
            display: flex;
            flex-direction: column;
        }
        .card-item:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-left-color: var(--accent);
            background-color: var(--bg-card-hover);
        }
        .card-item .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: 20px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
            gap: 10px;
        }
        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .card-tag {
            font-size: 12px;
            font-weight: 500;
            color: var(--accent);
            border: 1px solid var(--accent);
            padding: 2px 10px;
            border-radius: var(--radius-tag);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .card-title {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--text-primary);
            margin: 0;
        }
        .card-title a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        .card-title a:hover {
            color: var(--accent);
        }
        .card-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-light);
            padding-top: 12px;
            margin-top: auto;
        }
        .card-meta span {
            white-space: nowrap;
        }

        /* ========== Tag Cloud ========== */
        .tags-section {
            padding: 36px 0 48px;
            background-color: var(--bg-card);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 16px;
        }
        .tag-pill {
            display: inline-block;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            background-color: var(--bg);
            border: 1px solid var(--border-light);
            border-radius: 100px;
            transition: all var(--transition-base);
            cursor: pointer;
            text-decoration: none;
        }
        .tag-pill:hover {
            background-color: var(--primary);
            color: #F7F3EC;
            border-color: var(--primary);
            text-decoration: none;
        }

        /* ========== Deep Dive ========== */
        .deep-section {
            padding: 48px 0;
        }
        .deep-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 24px;
        }
        .deep-main-card {
            grid-row: span 2;
            background-color: var(--bg-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            border-left: 3px solid transparent;
            transition: box-shadow var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .deep-main-card:hover {
            box-shadow: var(--shadow-lg);
            border-left-color: var(--accent);
            transform: translateY(-2px);
        }
        .deep-main-card .card-img {
            width: 100%;
            aspect-ratio: 16 / 8;
            object-fit: cover;
            display: block;
        }
        .deep-main-card .card-body {
            padding: 28px 32px;
            gap: 12px;
        }
        .deep-main-card .card-title {
            font-size: 22px;
            line-height: 1.4;
        }
        .deep-sub-card {
            background-color: var(--bg-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            border-left: 3px solid transparent;
            transition: box-shadow var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .deep-sub-card:hover {
            box-shadow: var(--shadow-lg);
            border-left-color: var(--accent);
            transform: translateY(-2px);
        }
        .deep-sub-card .card-img {
            width: 100%;
            aspect-ratio: 16 / 7;
            object-fit: cover;
            display: block;
        }
        .deep-sub-card .card-body {
            padding: 18px 20px;
            gap: 8px;
        }
        .deep-sub-card .card-title {
            font-size: 15px;
            line-height: 1.5;
        }

        /* ========== Data Overview ========== */
        .data-section {
            padding: 48px 0;
            background-color: var(--primary);
            color: #F7F3EC;
        }
        .data-section .section-heading h2 {
            color: #F7F3EC;
        }
        .data-section .section-heading .heading-accent {
            background-color: var(--accent);
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 28px;
        }
        .data-card {
            background-color: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(247, 243, 236, 0.12);
            border-radius: var(--radius-card);
            padding: 24px 22px;
            text-align: center;
            transition: border-color var(--transition-base), background-color var(--transition-base);
        }
        .data-card:hover {
            border-color: var(--accent);
            background-color: rgba(255, 255, 255, 0.06);
        }
        .data-number {
            font-family: var(--font-condensed);
            font-size: 48px;
            font-weight: 700;
            line-height: 1.1;
            color: var(--accent);
            letter-spacing: 0.5px;
            display: block;
        }
        .data-label {
            font-size: 13px;
            color: rgba(247, 243, 236, 0.75);
            margin-top: 8px;
            line-height: 1.5;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 48px 0;
        }
        .faq-list {
            margin-top: 20px;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-light);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border-light);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 8px;
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            cursor: pointer;
            list-style: none;
            transition: color var(--transition-base);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            color: var(--accent);
        }
        .faq-item summary .arrow {
            font-size: 20px;
            font-weight: 400;
            color: var(--accent);
            transition: transform var(--transition-base);
            flex-shrink: 0;
            margin-left: 16px;
        }
        .faq-item[open] summary .arrow {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 8px 18px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 800px;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 40px 0 56px;
        }
        .cta-mini {
            background-color: var(--bg-card);
            border: 1px solid var(--border-light);
            border-left: 4px solid var(--accent);
            border-radius: var(--radius-card);
            padding: 20px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-sm);
        }
        .cta-mini p {
            margin: 0;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            min-width: 240px;
        }
        .btn-primary-sm {
            display: inline-block;
            padding: 10px 24px;
            background-color: var(--primary);
            color: #F7F3EC;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.3px;
            text-decoration: none;
            transition: all var(--transition-base);
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary-sm:hover {
            background-color: var(--accent);
            color: var(--primary);
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        /* ========== Footer ========== */
        .site-footer {
            background-color: var(--primary-dark);
            color: rgba(247, 243, 236, 0.85);
            padding-top: 56px;
            margin-top: auto;
        }
        .site-footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 13px;
            color: rgba(247, 243, 236, 0.65);
            line-height: 1.8;
            margin: 0;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #F7F3EC;
            margin: 0 0 16px;
            letter-spacing: 0.3px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul a {
            font-size: 13px;
            color: rgba(247, 243, 236, 0.7);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        .footer-col ul a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        .footer-bottom {
            border-top: 1px solid rgba(247, 243, 236, 0.1);
            padding: 18px 0;
        }
        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: rgba(247, 243, 236, 0.5);
            padding-top: 0;
            padding-bottom: 0;
        }
        .footer-bottom span {
            white-space: nowrap;
        }
        .footer-legal-links {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .footer-legal-links a {
            font-size: 12px;
            color: rgba(247, 243, 236, 0.5);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        .footer-legal-links a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1199px) {
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .deep-grid {
                grid-template-columns: 1fr;
            }
            .deep-main-card {
                grid-row: auto;
            }
            .site-footer .container {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 991px) {
            .main-nav a {
                padding: 0 16px;
                font-size: 14px;
            }
            .h1-wrapper h1 {
                font-size: 30px;
            }
        }
        @media (max-width: 767px) {
            :root {
                --header-height: 56px;
            }
            .site-header {
                height: var(--header-height);
            }
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: var(--primary);
                flex-direction: column;
                align-items: stretch;
                height: auto;
                max-height: 0;
                overflow: hidden;
                transition: max-height var(--transition-slow);
                border-bottom: 2px solid var(--accent);
            }
            .main-nav.open {
                max-height: 520px;
            }
            .main-nav ul {
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                width: 100%;
            }
            .main-nav li {
                height: auto;
                border-bottom: 1px solid rgba(247, 243, 236, 0.08);
            }
            .main-nav li+li::before {
                display: none;
            }
            .main-nav a {
                padding: 16px 24px;
                font-size: 16px;
                height: auto;
                display: block;
            }
            .cards-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .data-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .site-footer .container {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom .container {
                flex-direction: column;
                align-items: center;
                text-align: center;
                gap: 8px;
            }
            .h1-wrapper h1 {
                font-size: 24px;
            }
            .h1-decor {
                height: 32px;
            }
            .data-number {
                font-size: 38px;
            }
            .section-heading h2 {
                font-size: 23px;
            }
            .deep-main-card .card-body {
                padding: 18px 18px;
            }
            .deep-main-card .card-title {
                font-size: 18px;
            }
            .cta-mini {
                flex-direction: column;
                align-items: flex-start;
                padding: 18px 20px;
            }
            .cta-mini p {
                min-width: auto;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .logo-main {
                font-size: 18px;
            }
            .logo-sub {
                font-size: 10px;
                letter-spacing: 1.2px;
            }
            .breadcrumb {
                font-size: 12px;
            }
            .h1-wrapper h1 {
                font-size: 21px;
            }
            .card-body {
                padding: 16px 16px;
            }
            .card-title {
                font-size: 15px;
            }
            .tag-pill {
                padding: 6px 14px;
                font-size: 12px;
            }
            .data-number {
                font-size: 32px;
            }
            .faq-item summary {
                font-size: 14px;
                padding: 14px 4px;
            }
            .footer-bottom span {
                font-size: 11px;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #14352F;
            --primary-light: #1E4A41;
            --primary-dark: #0F2420;
            --accent: #D98E32;
            --accent-dark: #B8731A;
            --bg: #F7F3EC;
            --bg-card: #FFFFFF;
            --bg-card-hover: #FBF7EF;
            --text-primary: #1F2321;
            --text-secondary: #6B726E;
            --text-muted: #9AA09C;
            --border-light: #E6E1D8;
            --border-accent: #D98E32;
            --shadow-sm: 0 1px 3px rgba(20, 53, 47, 0.08);
            --shadow-md: 0 4px 12px rgba(20, 53, 47, 0.10);
            --shadow-lg: 0 8px 24px rgba(20, 53, 47, 0.16);
            --radius-card: 8px;
            --radius-btn: 4px;
            --radius-sm: 4px;
            --radius-tag: 4px;
            --container-max: 1200px;
            --header-height: 72px;
            --header-height-mobile: 56px;
            --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-condensed: "Barlow Condensed", "Roboto Condensed", sans-serif;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 48px;
            --spacing-xl: 72px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
        }

        @media (max-width: 767px) {
            :root {
                --header-height: 56px;
                --spacing-lg: 32px;
                --spacing-xl: 48px;
            }
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-primary);
            background-color: var(--bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            margin: 0;
        }

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

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition-base), border-color var(--transition-base), background-color var(--transition-base), opacity var(--transition-base);
        }

        a:hover {
            color: var(--accent-dark);
            text-decoration: underline;
        }

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

        button,
        input {
            font-family: var(--font-sans);
            font-size: 15px;
        }

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

        /* ========== Header ========== */
        .site-header {
            background-color: var(--primary);
            height: var(--header-height);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid transparent;
            border-image: linear-gradient(90deg, transparent, var(--accent), transparent) 1;
            transition: height var(--transition-fast);
            box-shadow: 0 2px 12px rgba(20, 53, 47, 0.12);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            flex-shrink: 0;
        }

        .logo a {
            display: flex;
            flex-direction: column;
            text-decoration: none;
            color: #F7F3EC;
        }

        .logo-main {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: #F7F3EC;
            line-height: 1.2;
        }

        .logo-sub {
            font-size: 11px;
            font-weight: 400;
            letter-spacing: 1.8px;
            color: var(--accent);
            text-transform: uppercase;
            font-family: var(--font-condensed);
            border-top: 1px solid rgba(217, 142, 50, 0.4);
            padding-top: 2px;
            margin-top: 2px;
            line-height: 1.2;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0;
            height: 100%;
        }

        .main-nav ul {
            display: flex;
            align-items: center;
            height: 100%;
            gap: 0;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .main-nav li {
            position: relative;
            height: 100%;
            display: flex;
            align-items: center;
        }

        .main-nav li+li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 28px;
            background-color: rgba(247, 243, 236, 0.25);
        }

        .main-nav a {
            display: flex;
            align-items: center;
            height: 100%;
            padding: 0 24px;
            color: #F7F3EC;
            font-size: 15px;
            font-weight: 500;
            letter-spacing: 0.3px;
            transition: color var(--transition-base), background-color var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .main-nav a.active {
            color: var(--accent);
            font-weight: 600;
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 20px;
            right: 20px;
            height: 3px;
            background-color: var(--accent);
            border-radius: 2px 2px 0 0;
        }

        .main-nav a:focus-visible {
            outline-offset: -2px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            z-index: 1100;
        }

        .nav-toggle .bar {
            display: block;
            width: 24px;
            height: 2px;
            background-color: #F7F3EC;
            border-radius: 2px;
            transition: transform var(--transition-base), opacity var(--transition-base), background-color var(--transition-base);
        }

        .nav-toggle[aria-expanded="true"] .bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle[aria-expanded="true"] .bar:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle[aria-expanded="true"] .bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ========== Breadcrumb ========== */
        .breadcrumb-section {
            background-color: var(--bg);
            padding: var(--spacing-sm) 0;
            border-bottom: 1px solid var(--border-light);
        }

        .breadcrumb {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
        }

        .breadcrumb li+li::before {
            content: '›';
            margin: 0 6px;
            color: var(--text-muted);
        }

        .breadcrumb a {
            color: var(--text-secondary);
            text-decoration: none;
        }

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

        .breadcrumb .current {
            color: var(--text-primary);
            font-weight: 500;
        }

        /* ========== Category Header ========== */
        .category-header {
            background-color: var(--bg);
            padding: var(--spacing-lg) 0 var(--spacing-md);
            position: relative;
        }

        .category-header::before {
            content: '';
            position: absolute;
            left: 0;
            top: 24px;
            bottom: 24px;
            width: 4px;
            background-color: var(--accent);
            border-radius: 0 4px 4px 0;
        }

        .category-header .container {
            padding-left: 36px;
        }

        .category-h1 {
            font-size: 34px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            margin: 0 0 8px;
            letter-spacing: 0.5px;
        }

        .category-intro {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
            max-width: 760px;
        }

        /* ========== Section Common ========== */
        .section {
            padding: var(--spacing-lg) 0;
        }

        .section+.section {
            padding-top: 0;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            margin: 0 0 var(--spacing-md);
            letter-spacing: 0.3px;
        }

        .section-title::after {
            content: '';
            display: block;
            width: 48px;
            height: 3px;
            background-color: var(--accent);
            border-radius: 2px;
            margin-top: 10px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: -8px 0 var(--spacing-md);
            max-width: 680px;
        }

        /* ========== Content Cards Grid ========== */
        .content-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }

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

        .content-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            background-color: var(--bg-card-hover);
            border-left: 3px solid var(--accent);
        }

        .card-cover {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background-color: var(--border-light);
        }

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

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

        .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--accent-dark);
            border: 1px solid var(--accent);
            padding: 3px 10px;
            border-radius: var(--radius-tag);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
            margin: 0;
            letter-spacing: 0.2px;
        }

        .card-title a {
            color: var(--text-primary);
            text-decoration: none;
        }

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

        .card-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
            margin-top: auto;
            padding-top: 8px;
            border-top: 1px solid var(--border-light);
            gap: 12px;
            flex-wrap: wrap;
        }

        .card-date {
            color: var(--text-muted);
        }

        .card-category {
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ========== Tag Cloud ========== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

        .tag-pill {
            display: inline-block;
            font-size: 14px;
            color: var(--text-secondary);
            border: 1px solid var(--border-light);
            padding: 8px 18px;
            border-radius: 24px;
            text-decoration: none;
            transition: color var(--transition-base), border-color var(--transition-base), background-color var(--transition-base);
            background-color: var(--bg-card);
            letter-spacing: 0.3px;
        }

        .tag-pill:hover {
            color: var(--primary);
            border-color: var(--accent);
            background-color: var(--bg-card-hover);
            text-decoration: none;
        }

        /* ========== Featured Depth ========== */
        .featured-depth {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: var(--spacing-md);
        }

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

        .featured-large:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .featured-large .featured-cover {
            aspect-ratio: 21 / 9;
            overflow: hidden;
            background-color: var(--border-light);
        }

        .featured-large .featured-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .featured-large .featured-body {
            padding: 24px;
        }

        .featured-large .featured-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .featured-large .featured-summary {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 12px;
        }

        .featured-large .featured-meta {
            font-size: 13px;
            color: var(--text-muted);
        }

        .featured-small-col {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }

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

        .featured-small:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .featured-small .featured-cover {
            aspect-ratio: 16 / 7;
            overflow: hidden;
            background-color: var(--border-light);
        }

        .featured-small .featured-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .featured-small .featured-body {
            padding: 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .featured-small .featured-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0;
            line-height: 1.4;
        }

        .featured-small .featured-summary {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .featured-small .featured-meta {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: auto;
        }

        /* ========== Stats Section ========== */
        .stats-section {
            background-color: var(--primary);
            border-radius: var(--radius-card);
            padding: var(--spacing-lg) var(--spacing-md);
            box-shadow: var(--shadow-md);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }

        .stat-item {
            text-align: center;
            padding: var(--spacing-sm);
            border-right: 1px solid rgba(247, 243, 236, 0.15);
        }

        .stat-item:last-child {
            border-right: none;
        }

        .stat-number {
            font-family: var(--font-condensed);
            font-size: 48px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.1;
            letter-spacing: 0.5px;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(247, 243, 236, 0.85);
            line-height: 1.5;
            margin-top: 4px;
        }

        .stat-desc {
            font-size: 12px;
            color: rgba(247, 243, 236, 0.6);
            line-height: 1.4;
            margin-top: 2px;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background-color: var(--bg-card);
            border-radius: var(--radius-card);
            padding: var(--spacing-lg) var(--spacing-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }

        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: var(--spacing-sm) 0;
        }

        .faq-item:first-of-type {
            padding-top: 0;
        }

        .faq-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .faq-question {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 8px 0;
            list-style: none;
            transition: color var(--transition-base);
        }

        .faq-question::-webkit-details-marker {
            display: none;
        }

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

        .faq-question::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--accent);
            transition: transform var(--transition-base);
            flex-shrink: 0;
            line-height: 1;
        }

        .faq-item[open] .faq-question::after {
            transform: rotate(45deg);
        }

        .faq-answer {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            padding: 4px 0 8px 0;
            max-width: 820px;
        }

        .faq-answer a {
            color: var(--accent);
        }

        /* ========== Category CTA ========== */
        .category-cta {
            background-color: var(--primary);
            border-radius: var(--radius-card);
            padding: var(--spacing-md) var(--spacing-lg);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            flex-wrap: wrap;
            box-shadow: var(--shadow-md);
            border: 1px solid rgba(217, 142, 50, 0.25);
        }

        .category-cta-content {
            flex: 1;
            min-width: 260px;
        }

        .category-cta-title {
            font-size: 20px;
            font-weight: 700;
            color: #F7F3EC;
            margin: 0 0 4px;
            letter-spacing: 0.3px;
        }

        .category-cta-desc {
            font-size: 14px;
            color: rgba(247, 243, 236, 0.75);
            margin: 0;
            line-height: 1.6;
        }

        .category-cta-form {
            display: flex;
            gap: 10px;
            flex-shrink: 0;
            align-items: center;
        }

        .category-cta-form input {
            background-color: rgba(247, 243, 236, 0.1);
            border: 1px solid rgba(247, 243, 236, 0.3);
            border-radius: var(--radius-btn);
            padding: 10px 16px;
            color: #F7F3EC;
            font-size: 14px;
            min-width: 240px;
            transition: border-color var(--transition-base), background-color var(--transition-base);
        }

        .category-cta-form input::placeholder {
            color: rgba(247, 243, 236, 0.5);
        }

        .category-cta-form input:focus {
            outline: none;
            border-color: var(--accent);
            background-color: rgba(247, 243, 236, 0.15);
        }

        .category-cta-button {
            background-color: var(--accent);
            color: var(--primary);
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: transform var(--transition-base), background-color var(--transition-base), color var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .category-cta-button:hover {
            background-color: var(--primary-dark);
            color: var(--accent);
            transform: translateY(-2px);
        }

        /* ========== Footer ========== */
        .site-footer {
            background-color: var(--primary-dark);
            color: rgba(247, 243, 236, 0.8);
            margin-top: auto;
            padding: var(--spacing-lg) 0 0;
        }

        .site-footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: var(--spacing-lg);
            padding-bottom: var(--spacing-lg);
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-brand .logo {
            margin-bottom: 4px;
        }

        .footer-brand .logo-main {
            color: #F7F3EC;
        }

        .footer-brand .logo-sub {
            color: var(--accent);
            border-top-color: rgba(217, 142, 50, 0.4);
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(247, 243, 236, 0.7);
            line-height: 1.7;
            margin: 0;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #F7F3EC;
            margin: 0 0 12px;
            letter-spacing: 0.5px;
        }

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

        .footer-col ul a {
            color: rgba(247, 243, 236, 0.7);
            font-size: 14px;
            text-decoration: none;
            transition: color var(--transition-base);
        }

        .footer-col ul a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .footer-col p {
            font-size: 13px;
            color: rgba(247, 243, 236, 0.65);
            line-height: 1.7;
            margin: 4px 0 0;
        }

        .footer-col .footer-sub-link {
            display: inline-block;
            margin-top: 10px;
            color: var(--accent);
            font-size: 13px;
            text-decoration: none;
        }

        .footer-col .footer-sub-link:hover {
            color: var(--accent-dark);
            text-decoration: underline;
        }

        .footer-bottom {
            background-color: rgba(0, 0, 0, 0.25);
            padding: var(--spacing-sm) 0;
        }

        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: rgba(247, 243, 236, 0.6);
            padding-top: 0;
            padding-bottom: 0;
        }

        .footer-bottom span {
            display: inline-block;
        }

        .footer-legal-links {
            display: flex;
            gap: 20px;
        }

        .footer-legal-links a {
            color: rgba(247, 243, 236, 0.6);
            text-decoration: none;
            font-size: 13px;
            transition: color var(--transition-base);
        }

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

        /* ========== Responsive ========== */
        @media (max-width: 1199px) {
            .content-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .main-nav a {
                padding: 0 16px;
                font-size: 14px;
            }

            .main-nav li+li::before {
                height: 22px;
            }
        }

        @media (max-width: 991px) {
            .featured-depth {
                grid-template-columns: 1fr;
            }

            .featured-small-col {
                flex-direction: row;
                gap: var(--spacing-md);
            }

            .featured-small {
                flex: 1;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-sm);
            }

            .stat-item {
                border-right: none;
                border-bottom: 1px solid rgba(247, 243, 236, 0.15);
                padding: var(--spacing-sm) var(--spacing-xs);
            }

            .stat-item:nth-child(3),
            .stat-item:nth-child(4) {
                border-bottom: none;
            }

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

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .site-header {
                height: var(--header-height);
            }

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

            .logo-sub {
                font-size: 9px;
                letter-spacing: 1.2px;
            }

            .nav-toggle {
                display: flex;
            }

            .main-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                bottom: 0;
                background-color: var(--primary);
                flex-direction: column;
                align-items: stretch;
                justify-content: flex-start;
                height: calc(100vh - var(--header-height));
                padding: var(--spacing-md) 0;
                transform: translateX(100%);
                transition: transform var(--transition-base);
                overflow-y: auto;
                z-index: 990;
            }

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

            .main-nav ul {
                flex-direction: column;
                align-items: stretch;
                height: auto;
                width: 100%;
                gap: 0;
            }

            .main-nav li {
                height: auto;
                display: block;
                border-bottom: 1px solid rgba(247, 243, 236, 0.12);
            }

            .main-nav li+li::before {
                display: none;
            }

            .main-nav a {
                display: block;
                padding: 16px 24px;
                font-size: 16px;
                color: #F7F3EC;
                height: auto;
                text-align: left;
                border-left: 3px solid transparent;
            }

            .main-nav a.active {
                border-left: 3px solid var(--accent);
                background-color: rgba(217, 142, 50, 0.1);
            }

            .main-nav a.active::after {
                display: none;
            }

            .category-header::before {
                top: 16px;
                bottom: 16px;
            }

            .category-h1 {
                font-size: 26px;
            }

            .category-intro {
                font-size: 14px;
            }

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

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

            .featured-small-col {
                flex-direction: column;
            }

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

            .stat-number {
                font-size: 36px;
            }

            .category-cta {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
                padding: var(--spacing-md);
            }

            .category-cta-form {
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
            }

            .category-cta-form input {
                min-width: auto;
                width: 100%;
                text-align: center;
            }

            .site-footer .container {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }

            .footer-brand {
                grid-column: auto;
            }

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

            .footer-legal-links {
                gap: 16px;
            }
        }

        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }

            .stat-item {
                border-bottom: 1px solid rgba(247, 243, 236, 0.15);
            }

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

            .tag-pill {
                font-size: 12px;
                padding: 6px 14px;
            }

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

/* 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}