/* roulang page: index */
:root {
            --primary: #122B1F;
            --primary-soft: #1A3326;
            --accent: #C6F24E;
            --accent-deep: #B4F04D;
            --highlight: #FF7A1A;
            --bg: #F5F3ED;
            --bg-alt: #F4F6F3;
            --surface: #FFFFFF;
            --text: #111111;
            --text-secondary: #5A5F5A;
            --text-muted: #92988F;
            --border: #E5E7E0;
            --border-strong: #D9DED6;
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 20px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(18, 43, 31, 0.04);
            --shadow: 0 8px 24px rgba(18, 43, 31, 0.06);
            --shadow-lg: 0 18px 40px rgba(18, 43, 31, 0.14);
            --font-sans: 'PingFang SC', 'Source Han Sans SC', 'Noto Sans SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --section-gap: 80px;
            --section-gap-mobile: 44px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        a:hover {
            color: var(--highlight);
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button {
            cursor: pointer;
        }

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

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 14px rgba(18, 43, 31, 0.04);
        }

        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 14px 0;
            flex-wrap: nowrap;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            color: var(--primary);
            font-weight: 700;
            font-size: 18px;
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: color var(--transition);
        }
        .logo-link:hover {
            color: var(--primary-soft);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 17px;
            flex-shrink: 0;
        }

        .nav-search-wrap {
            flex: 1;
            max-width: 480px;
            display: flex;
            align-items: center;
            position: relative;
            margin: 0 auto;
        }

        .nav-search-input {
            width: 100%;
            height: 44px;
            background: var(--surface);
            border: 1.5px solid var(--border-strong);
            border-radius: var(--radius-pill);
            padding: 0 20px 0 46px;
            font-size: 15px;
            color: var(--text);
            outline: none;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .nav-search-input::placeholder {
            color: var(--text-muted);
            font-size: 14px;
        }
        .nav-search-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(198, 242, 78, 0.25);
        }
        .nav-search-icon {
            position: absolute;
            left: 18px;
            pointer-events: none;
            color: var(--text-muted);
            font-size: 16px;
        }

        .nav-search-toggle {
            display: none;
            width: 44px;
            height: 44px;
            background: var(--surface);
            border: 1.5px solid var(--border-strong);
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
            transition: background var(--transition), color var(--transition);
        }
        .nav-search-toggle:hover {
            background: var(--bg-alt);
        }
        .nav-search-toggle:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

        .nav-cats {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: nowrap;
            padding: 0 0 12px 0;
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--border-strong) transparent;
        }
        .nav-cats::-webkit-scrollbar {
            height: 4px;
        }
        .nav-cats::-webkit-scrollbar-thumb {
            background: var(--border-strong);
            border-radius: 4px;
        }

        .nav-cat {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 18px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--surface);
            border: 1px solid var(--border);
            white-space: nowrap;
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .nav-cat:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: var(--bg-alt);
        }
        .nav-cat:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        .nav-cat.active {
            background: var(--primary);
            color: var(--surface);
            border-color: var(--primary);
            font-weight: 600;
        }
        .nav-cat.active:hover {
            color: var(--surface);
            background: var(--primary-soft);
        }

        .mobile-search-panel {
            display: none;
            padding: 0 0 14px 0;
        }
        .mobile-search-panel.open {
            display: block;
        }
        .mobile-search-panel .nav-search-input {
            width: 100%;
        }

        @media (max-width: 1024px) {
            .nav-search-wrap {
                max-width: 320px;
            }
            .header-main {
                gap: 12px;
            }
        }

        @media (max-width: 768px) {
            .header-main {
                padding: 10px 0;
                gap: 10px;
            }
            .nav-search-wrap.desktop-search {
                display: none;
            }
            .nav-search-toggle {
                display: flex;
            }
            .nav-cats {
                gap: 6px;
                padding-bottom: 8px;
            }
            .nav-cat {
                padding: 6px 14px;
                font-size: 13px;
            }
            .logo-link {
                font-size: 15px;
                gap: 6px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
                border-radius: 8px;
            }
        }

        @media (max-width: 520px) {
            .logo-link {
                font-size: 13px;
                letter-spacing: 0;
            }
            .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 12px;
                border-radius: 7px;
            }
            .nav-cat {
                padding: 5px 11px;
                font-size: 12px;
            }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 580px;
            display: flex;
            align-items: center;
            background: var(--primary) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            overflow: hidden;
            isolation: isolate;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(18, 43, 31, 0.92) 0%, rgba(18, 43, 31, 0.72) 35%, rgba(18, 43, 31, 0.25) 65%, rgba(18, 43, 31, 0.05) 100%);
            z-index: -1;
        }
        .hero-content {
            padding: 80px 0 70px;
            color: #FFFFFF;
            max-width: 700px;
            text-align: left;
        }
        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 22px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background: rgba(198, 242, 78, 0.18);
            border: 1px solid rgba(198, 242, 78, 0.45);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .hero-badge .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(0.8); }
        }

        .hero h1 {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: 0.01em;
            margin-bottom: 20px;
            color: #FFFFFF;
        }
        .hero h1 .accent-text {
            color: var(--accent);
        }
        .hero-subtitle {
            font-size: 17px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 30px;
            max-width: 620px;
        }
        .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 38px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 32px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.01em;
            border: 2px solid transparent;
            transition: all var(--transition);
            text-decoration: none;
            white-space: nowrap;
            cursor: pointer;
            line-height: 1.4;
        }
        .btn:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--highlight);
            border-color: var(--highlight);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(255, 122, 26, 0.3);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(255, 122, 26, 0.25);
        }
        .btn-primary:disabled {
            background: #B9C0B5;
            border-color: #B9C0B5;
            color: #FFFFFF;
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }

        .btn-outline-light {
            background: transparent;
            color: #FFFFFF;
            border-color: rgba(255, 255, 255, 0.65);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #FFFFFF;
            color: #FFFFFF;
            transform: translateY(-2px);
        }
        .btn-outline-light:active {
            transform: translateY(0);
        }
        .btn-outline-light:disabled {
            opacity: 0.45;
            cursor: not-allowed;
            transform: none;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            padding-top: 26px;
            border-top: 1px solid rgba(255, 255, 255, 0.18);
        }
        .hero-stat {
            text-align: left;
        }
        .hero-stat-num {
            font-size: 26px;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: -0.01em;
            line-height: 1.3;
        }
        .hero-stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 2px;
        }

        @media (max-width: 768px) {
            .hero {
                min-height: auto;
            }
            .hero-content {
                padding: 52px 0 48px;
            }
            .hero h1 {
                font-size: 28px;
                line-height: 1.35;
            }
            .hero-subtitle {
                font-size: 15px;
                line-height: 1.8;
            }
            .btn {
                padding: 11px 24px;
                font-size: 14px;
            }
            .hero-stats {
                gap: 20px;
            }
            .hero-stat-num {
                font-size: 21px;
            }
        }
        @media (max-width: 520px) {
            .hero h1 {
                font-size: 23px;
            }
            .hero-cta-row {
                flex-direction: column;
                gap: 10px;
            }
            .btn {
                width: 100%;
            }
            .hero-stats {
                gap: 14px;
                flex-wrap: wrap;
            }
            .hero-stat {
                min-width: 45%;
            }
        }

        /* ===== Section common ===== */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-tag {
            display: inline-block;
            padding: 5px 16px;
            border-radius: var(--radius-pill);
            background: rgba(198, 242, 78, 0.3);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: 12px;
            border: 1px solid rgba(198, 242, 78, 0.7);
        }
        .section-title {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.4;
            color: var(--text);
            letter-spacing: -0.01em;
            margin-bottom: 10px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 720px;
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--section-gap-mobile) 0;
            }
            .section-header {
                margin-bottom: 28px;
            }
            .section-title {
                font-size: 22px;
            }
            .section-desc {
                font-size: 15px;
            }
        }

        /* ===== Highlight Points ===== */
        .highlight-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .highlight-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 26px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .highlight-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }
        .highlight-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--border-strong);
        }
        .highlight-card:hover::before {
            transform: scaleX(1);
        }
        .highlight-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(198, 242, 78, 0.22);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 16px;
        }
        .highlight-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        .highlight-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
        }
        @media (max-width: 768px) {
            .highlight-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .highlight-card {
                padding: 22px 20px;
            }
        }

        /* ===== Brand Intro ===== */
        .brand-intro-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 44px;
            align-items: center;
        }
        .brand-intro-text {
            font-size: 16px;
            line-height: 2;
            color: var(--text-secondary);
        }
        .brand-intro-text p + p {
            margin-top: 16px;
        }
        .brand-intro-text strong {
            color: var(--text);
        }
        .brand-intro-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 4 / 3;
            object-fit: cover;
            width: 100%;
        }
        .brand-intro-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        @media (max-width: 768px) {
            .brand-intro-wrap {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .brand-intro-img {
                order: -1;
            }
        }

        /* ===== Feature Groups ===== */
        .feature-groups-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 26px;
        }
        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 30px 28px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            display: flex;
            gap: 22px;
            flex-direction: column;
            position: relative;
            overflow: hidden;
        }
        .feature-card::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 3px;
            background: var(--highlight);
            transition: width var(--transition);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border-strong);
        }
        .feature-card:hover::after {
            width: 100%;
        }
        .feature-card-top {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .feature-card-img {
            width: 80px;
            height: 80px;
            border-radius: 14px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
        }
        .feature-card-tag {
            font-size: 13px;
            color: var(--highlight);
            font-weight: 600;
        }
        .feature-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
        }
        .feature-card-link {
            align-self: flex-start;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 14px;
            color: var(--primary);
            transition: color var(--transition);
        }
        .feature-card-link:hover {
            color: var(--highlight);
        }
        .feature-card-link:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        @media (max-width: 768px) {
            .feature-groups-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .feature-card {
                padding: 22px 20px;
                gap: 16px;
            }
            .feature-card-img {
                width: 60px;
                height: 60px;
                border-radius: 10px;
            }
            .feature-card h3 {
                font-size: 18px;
            }
        }

        /* ===== Use Scenarios ===== */
        .scenario-list {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .scenario-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 30px;
            box-shadow: var(--shadow-sm);
            display: grid;
            grid-template-columns: 180px 1fr;
            gap: 28px;
            align-items: start;
            transition: all var(--transition);
        }
        .scenario-item:hover {
            box-shadow: var(--shadow);
            border-color: var(--border-strong);
        }
        .scenario-img {
            width: 180px;
            aspect-ratio: 1 / 1;
            object-fit: cover;
            border-radius: var(--radius);
            flex-shrink: 0;
        }
        .scenario-content h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .scenario-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
        }
        @media (max-width: 768px) {
            .scenario-item {
                grid-template-columns: 1fr;
                gap: 18px;
                padding: 22px 20px;
            }
            .scenario-img {
                width: 100%;
                aspect-ratio: 16 / 9;
            }
            .scenario-content h3 {
                font-size: 17px;
            }
        }

        /* ===== Live Preview ===== */
        .live-preview-wrap {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            display: grid;
            grid-template-columns: 1fr 1fr;
            min-height: 340px;
        }
        .live-preview-cover {
            position: relative;
            min-height: 320px;
        }
        .live-preview-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }
        .live-preview-countdown {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(18, 43, 31, 0.9);
            backdrop-filter: blur(6px);
            color: var(--accent);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 15px;
            z-index: 2;
        }
        .live-preview-info {
            padding: 32px 30px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .live-preview-info h3 {
            font-size: 21px;
            font-weight: 700;
            color: var(--text);
        }
        .live-preview-info .live-tag {
            display: inline-block;
            padding: 3px 12px;
            border-radius: var(--radius-pill);
            background: rgba(255, 122, 26, 0.15);
            color: var(--highlight);
            font-size: 13px;
            font-weight: 700;
            align-self: flex-start;
        }
        .live-points {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .live-points li {
            padding-left: 22px;
            position: relative;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .live-points li::before {
            content: '→';
            position: absolute;
            left: 0;
            color: var(--highlight);
            font-weight: 700;
        }
        @media (max-width: 768px) {
            .live-preview-wrap {
                grid-template-columns: 1fr;
            }
            .live-preview-cover {
                min-height: 220px;
            }
            .live-preview-info {
                padding: 22px 20px;
            }
        }

        /* ===== News Center ===== */
        .news-layout {
            display: grid;
            grid-template-columns: 1.7fr 1fr;
            gap: 32px;
        }
        .news-main-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news-item {
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            gap: 6px;
            transition: background var(--transition);
        }
        .news-item:first-child {
            padding-top: 0;
        }
        .news-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .news-item:hover .news-item-title a {
            color: var(--highlight);
        }
        .news-item-date {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
            letter-spacing: 0.04em;
            font-variant-numeric: tabular-nums;
        }
        .news-item-title {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
        }
        .news-item-title a {
            color: var(--text);
            transition: color var(--transition);
        }
        .news-item-title a:hover {
            color: var(--highlight);
        }
        .news-item-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .news-item-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            align-self: flex-start;
            transition: color var(--transition);
            background: none;
            border: none;
            padding: 0;
            cursor: pointer;
        }
        .news-item-more:hover {
            color: var(--highlight);
        }
        .news-item-more:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

        .news-sidebar {
            background: var(--bg-alt);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            align-self: start;
            position: sticky;
            top: 90px;
        }
        .news-sidebar h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 14px;
        }
        .news-sidebar-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .news-sidebar-list li a {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: block;
            padding: 6px 0;
            border-bottom: 1px dashed var(--border);
            transition: color var(--transition);
        }
        .news-sidebar-list li a:hover {
            color: var(--highlight);
        }
        @media (max-width: 768px) {
            .news-layout {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .news-sidebar {
                position: static;
                padding: 20px 18px;
            }
            .news-item-title {
                font-size: 15px;
            }
        }

        /* ===== Pricing ===== */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: stretch;
        }
        .pricing-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 26px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            gap: 14px;
            position: relative;
            transition: all var(--transition);
        }
        .pricing-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .pricing-card.featured {
            border-color: var(--primary);
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .pricing-card.featured::before {
            content: '推荐方案';
            position: absolute;
            top: -14px;
            right: 24px;
            background: var(--highlight);
            color: #FFFFFF;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.04em;
        }
        .pricing-plan-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
        }
        .pricing-plan-type {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }
        .pricing-features {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 9px;
            flex: 1;
        }
        .pricing-features li {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            padding-left: 20px;
            position: relative;
        }
        .pricing-features li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: 700;
            font-size: 13px;
        }
        .pricing-card .btn {
            width: 100%;
            margin-top: 6px;
        }
        @media (max-width: 768px) {
            .pricing-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .pricing-card {
                padding: 24px 20px;
            }
        }

        /* ===== Deep Content ===== */
        .deep-content-wrap {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 38px 36px;
            box-shadow: var(--shadow-sm);
        }
        .deep-content-wrap h2 {
            font-size: 22px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 20px;
        }
        .deep-content-wrap h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin: 24px 0 10px;
        }
        .deep-content-wrap p {
            font-size: 15px;
            line-height: 2;
            color: var(--text-secondary);
            margin-bottom: 14px;
        }
        .deep-content-wrap strong {
            color: var(--text);
        }
        @media (max-width: 768px) {
            .deep-content-wrap {
                padding: 24px 20px;
            }
            .deep-content-wrap h2 {
                font-size: 19px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 900px;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-strong);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 18px 22px;
            background: none;
            border: none;
            text-align: left;
            font-weight: 700;
            font-size: 16px;
            color: var(--text);
            cursor: pointer;
            transition: background var(--transition);
            line-height: 1.5;
        }
        .faq-question:hover {
            background: var(--bg-alt);
        }
        .faq-question:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: -3px;
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(198, 242, 78, 0.3);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            transition: transform var(--transition);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--highlight);
            color: #FFFFFF;
        }
        .faq-item.open {
            border-left: 4px solid var(--accent);
            border-radius: var(--radius);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            background: var(--bg-alt);
        }
        .faq-answer-inner {
            padding: 16px 22px 22px;
            font-size: 14px;
            line-height: 1.9;
            color: var(--text-secondary);
        }
        @media (max-width: 768px) {
            .faq-question {
                padding: 15px 16px;
                font-size: 14px;
            }
            .faq-answer-inner {
                padding: 12px 16px 18px;
                font-size: 13px;
            }
        }

        /* ===== CTA ===== */
        .cta-section-wrap {
            background: var(--primary) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            border-radius: var(--radius-lg);
            padding: 52px 44px;
            position: relative;
            overflow: hidden;
            isolation: isolate;
            color: #FFFFFF;
        }
        .cta-section-wrap::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(18, 43, 31, 0.85);
            z-index: -1;
        }
        .cta-section-wrap h2 {
            font-size: 26px;
            font-weight: 800;
            margin-bottom: 12px;
            color: #FFFFFF;
        }
        .cta-section-wrap p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.9;
            max-width: 620px;
            margin-bottom: 24px;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            flex-wrap: wrap;
        }
        .cta-input {
            flex: 1;
            min-width: 220px;
            height: 48px;
            background: var(--surface);
            border: 1.5px solid var(--border-strong);
            border-radius: var(--radius-pill);
            padding: 0 22px;
            font-size: 15px;
            color: var(--text);
            outline: none;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .cta-input::placeholder {
            color: var(--text-muted);
        }
        .cta-input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(198, 242, 78, 0.25);
        }
        @media (max-width: 768px) {
            .cta-section-wrap {
                padding: 32px 22px;
            }
            .cta-section-wrap h2 {
                font-size: 21px;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-input {
                min-width: 100%;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0D1F16;
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 28px;
            margin-top: 60px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand .logo-link {
            color: #FFFFFF;
            font-size: 20px;
            margin-bottom: 12px;
            display: inline-flex;
        }
        .footer-brand .logo-link:hover {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition);
            display: inline-block;
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-col ul li a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 22px;
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
            transition: color var(--transition);
        }
        .footer-bottom-links a:hover {
            color: var(--accent);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer {
                padding: 36px 0 22px;
                margin-top: 36px;
            }
        }

        /* ===== Utility ===== */
        .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;
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition-duration: 0.01ms !important;
                animation-duration: 0.01ms !important;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #122B1F;
            --primary-soft: #1A3326;
            --accent: #C6F24E;
            --accent-deep: #B4F04D;
            --highlight: #FF7A1A;
            --bg: #F5F3ED;
            --bg-alt: #F4F6F3;
            --surface: #FFFFFF;
            --text: #111111;
            --text-secondary: #5A5F5A;
            --text-muted: #92988F;
            --border: #E5E7E0;
            --border-strong: #D9DED6;
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 20px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(18, 43, 31, 0.04);
            --shadow: 0 8px 24px rgba(18, 43, 31, 0.06);
            --shadow-lg: 0 18px 40px rgba(18, 43, 31, 0.14);
            --font-sans: 'PingFang SC', 'Source Han Sans SC', 'Noto Sans SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --section-gap: 80px;
            --section-gap-mobile: 44px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }
        *, *::before, *::after {
            box-sizing: border-box;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--highlight);
        }
        button, input {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
        }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 14px rgba(18, 43, 31, 0.04);
        }
        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 14px 0;
            flex-wrap: nowrap;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            color: var(--primary);
            font-weight: 700;
            font-size: 18px;
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: color var(--transition);
        }
        .logo-link:hover {
            color: var(--primary-soft);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 17px;
            flex-shrink: 0;
        }
        .nav-search-wrap {
            flex: 1;
            max-width: 480px;
            display: flex;
            align-items: center;
            position: relative;
            margin: 0 auto;
        }
        .nav-search-input {
            width: 100%;
            height: 44px;
            background: var(--surface);
            border: 1.5px solid var(--border-strong);
            border-radius: var(--radius-pill);
            padding: 0 20px 0 46px;
            font-size: 15px;
            color: var(--text);
            outline: none;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .nav-search-input::placeholder {
            color: var(--text-muted);
            font-size: 14px;
        }
        .nav-search-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(198, 242, 78, 0.25);
        }
        .nav-search-icon {
            position: absolute;
            left: 18px;
            pointer-events: none;
            color: var(--text-muted);
            font-size: 16px;
        }
        .nav-search-toggle {
            display: none;
            width: 44px;
            height: 44px;
            background: var(--surface);
            border: 1.5px solid var(--border-strong);
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
            transition: background var(--transition), color var(--transition);
        }
        .nav-search-toggle:hover {
            background: var(--bg-alt);
        }
        .nav-search-toggle:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        .nav-cats {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: nowrap;
            padding: 0 0 12px 0;
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--border-strong) transparent;
        }
        .nav-cats::-webkit-scrollbar {
            height: 4px;
        }
        .nav-cats::-webkit-scrollbar-thumb {
            background: var(--border-strong);
            border-radius: 4px;
        }
        .nav-cat {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 18px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid transparent;
            white-space: nowrap;
            transition: background var(--transition), color var(--transition), border-color var(--transition);
        }
        .nav-cat:hover {
            color: var(--primary);
            background: var(--bg-alt);
            border-color: var(--border);
        }
        .nav-cat.active {
            background: var(--primary);
            color: var(--accent);
            border-color: var(--primary);
            font-weight: 600;
        }
        .nav-cat:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        .mobile-search-panel {
            display: none;
            padding: 0 0 12px 0;
        }
        @media (max-width: 760px) {
            .desktop-search {
                display: none;
            }
            .nav-search-toggle {
                display: flex;
            }
            .mobile-search-panel.open {
                display: block;
            }
        }
        @media (max-width: 520px) {
            .header-main {
                gap: 12px;
                padding: 10px 0;
            }
            .logo-link {
                font-size: 16px;
                gap: 6px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
                border-radius: 8px;
            }
            .nav-cat {
                padding: 6px 14px;
                font-size: 13px;
            }
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            background: var(--bg-alt);
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--highlight);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== Category Hero ===== */
        .cat-hero {
            padding: 48px 0 36px;
            background: var(--surface);
            border-bottom: 1px solid var(--border);
        }
        .cat-hero-inner {
            max-width: 860px;
        }
        .cat-hero .cat-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: transparent;
            border: 1px solid var(--primary);
            color: var(--primary);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .cat-hero h1 {
            font-size: clamp(26px, 4vw, 36px);
            line-height: 1.3;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 16px;
        }
        .cat-hero .cat-desc {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-secondary);
            margin: 0 0 24px;
            max-width: 760px;
        }
        .cat-hero .cat-toolbar {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .cat-hero .toolbar-search {
            flex: 1;
            max-width: 420px;
            display: flex;
            align-items: center;
            position: relative;
        }
        .cat-hero .toolbar-search input {
            width: 100%;
            height: 44px;
            background: var(--surface);
            border: 1.5px solid var(--border-strong);
            border-radius: var(--radius-pill);
            padding: 0 20px 0 44px;
            font-size: 15px;
            color: var(--text);
            outline: none;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .cat-hero .toolbar-search input::placeholder {
            color: var(--text-muted);
            font-size: 14px;
        }
        .cat-hero .toolbar-search input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(198, 242, 78, 0.25);
        }
        .cat-hero .toolbar-search .search-icon-pos {
            position: absolute;
            left: 16px;
            pointer-events: none;
            color: var(--text-muted);
            font-size: 16px;
        }
        .filter-tags {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            padding: 12px 0 0;
        }
        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-alt);
            border: 1px solid var(--border);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .filter-tag:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: var(--surface);
        }
        .filter-tag.active-tag {
            background: var(--primary);
            color: var(--accent);
            border-color: var(--primary);
            font-weight: 600;
        }
        .filter-tag:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Entry List ===== */
        .entry-list-section {
            padding: 48px 0;
            background: var(--bg);
        }
        .entry-list-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        @media (max-width: 820px) {
            .entry-list-grid {
                grid-template-columns: 1fr;
            }
        }
        .entry-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 22px 24px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
            position: relative;
            overflow: hidden;
        }
        .entry-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 0;
            background: var(--highlight);
            transition: height var(--transition);
        }
        .entry-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--border-strong);
            transform: translateY(-3px);
        }
        .entry-card:hover::before {
            height: 100%;
        }
        .entry-card-head {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 12px;
        }
        .entry-card-id {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 34px;
            height: 34px;
            border-radius: 8px;
            background: var(--primary);
            color: var(--accent);
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
        }
        .entry-card-date {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            letter-spacing: 0.02em;
            font-variant-numeric: tabular-nums;
        }
        .entry-card h2 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin: 0;
            line-height: 1.5;
        }
        .entry-card .entry-summary {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin: 0;
            flex-grow: 1;
        }
        .entry-card .entry-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            padding-top: 4px;
            border-top: 1px solid var(--border);
        }
        .entry-card .entry-tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 10px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 500;
            background: var(--bg-alt);
            color: var(--text-secondary);
            border: 1px solid var(--border);
        }
        .entry-card .entry-readmore {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            padding: 4px 0;
            transition: color var(--transition), gap var(--transition);
            margin-left: auto;
        }
        .entry-card .entry-readmore:hover {
            color: var(--highlight);
            gap: 8px;
        }

        /* ===== Deep Content ===== */
        .deep-content-section {
            padding: 56px 0;
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .deep-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }
        @media (max-width: 820px) {
            .deep-content-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }
        .deep-content-text h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 16px;
            line-height: 1.4;
        }
        .deep-content-text p {
            font-size: 15px;
            line-height: 2;
            color: var(--text-secondary);
            margin: 0 0 16px;
        }
        .deep-content-text p:last-child {
            margin-bottom: 0;
        }
        .deep-content-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .deep-content-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 56px 0;
            background: var(--bg);
        }
        .faq-section h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 24px;
            text-align: center;
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow);
        }
        .faq-item.open {
            border-color: var(--primary);
            border-left: 4px solid var(--highlight);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            background: none;
            border: none;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            transition: color var(--transition), background var(--transition);
        }
        .faq-question:hover {
            background: var(--bg-alt);
            color: var(--primary-soft);
        }
        .faq-question:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: -3px;
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--bg-alt);
            color: var(--primary);
            font-size: 18px;
            font-weight: 700;
            transition: transform var(--transition), background var(--transition), color var(--transition);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 22px 20px;
        }
        .faq-answer p {
            font-size: 15px;
            line-height: 1.95;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 56px 0;
            background: var(--primary);
            color: #fff;
        }
        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .cta-text h2 {
            font-size: 26px;
            font-weight: 700;
            margin: 0 0 10px;
            color: var(--accent);
        }
        .cta-text p {
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            margin: 0;
            max-width: 560px;
        }
        .cta-form {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .cta-form input {
            width: 260px;
            height: 46px;
            border-radius: var(--radius-pill);
            border: 1px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            padding: 0 20px;
            font-size: 15px;
            outline: none;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .cta-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(198, 242, 78, 0.2);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            background: var(--accent);
            color: var(--primary);
            border: none;
            border-radius: var(--radius-pill);
            padding: 13px 28px;
            font-size: 15px;
            font-weight: 700;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--highlight);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 122, 26, 0.35);
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(198, 242, 78, 0.6);
            outline-offset: 3px;
        }
        .btn-primary:disabled {
            background: #c0c4bb;
            color: #fff;
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            border-radius: var(--radius-pill);
            padding: 12px 26px;
            font-size: 15px;
            font-weight: 600;
            transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
            white-space: nowrap;
        }
        .btn-secondary:hover {
            background: var(--bg-alt);
            border-color: var(--primary-soft);
            transform: translateY(-2px);
            color: var(--primary-soft);
        }
        .btn-secondary:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 3px;
        }
        .btn-secondary:disabled {
            border-color: var(--text-muted);
            color: var(--text-muted);
            background: transparent;
            cursor: not-allowed;
            transform: none;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0D1E15;
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        @media (max-width: 820px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        .footer-brand .logo-link {
            color: #fff;
            font-size: 18px;
            margin-bottom: 12px;
        }
        .footer-brand .logo-link:hover {
            color: var(--accent);
        }
        .footer-brand .logo-icon {
            background: var(--accent);
            color: var(--primary);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            margin: 12px 0 0;
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--accent);
            margin: 0 0 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 13px;
            transition: color var(--transition);
        }
        .footer-bottom-links a:hover {
            color: var(--accent);
        }
        @media (max-width: 640px) {
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
        }

        /* ===== Misc ===== */
        .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;
        }
        @media (max-width: 640px) {
            .cat-hero {
                padding: 32px 0 24px;
            }
            .cat-hero h1 {
                font-size: 24px;
            }
            .cat-hero .cat-desc {
                font-size: 15px;
            }
            .entry-card {
                padding: 18px 16px;
            }
            .entry-card h2 {
                font-size: 16px;
            }
            .entry-card .entry-summary {
                font-size: 14px;
            }
            .deep-content-section,
            .faq-section,
            .cta-section {
                padding: 36px 0;
            }
            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-form input {
                width: 100%;
            }
            .cta-form {
                width: 100%;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px 18px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #122B1F;
            --primary-soft: #1A3326;
            --accent: #C6F24E;
            --accent-deep: #B4F04D;
            --highlight: #FF7A1A;
            --bg: #F5F3ED;
            --bg-alt: #F4F6F3;
            --surface: #FFFFFF;
            --text: #111111;
            --text-secondary: #5A5F5A;
            --text-muted: #92988F;
            --border: #E5E7E0;
            --border-strong: #D9DED6;
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 20px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(18, 43, 31, 0.04);
            --shadow: 0 8px 24px rgba(18, 43, 31, 0.06);
            --shadow-lg: 0 18px 40px rgba(18, 43, 31, 0.14);
            --font-sans: 'PingFang SC', 'Source Han Sans SC', 'Noto Sans SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --section-gap: 80px;
            --section-gap-mobile: 44px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--highlight);
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
        }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }
        /* ===== Header / Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 14px rgba(18, 43, 31, 0.04);
        }
        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 14px 0;
            flex-wrap: nowrap;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            color: var(--primary);
            font-weight: 700;
            font-size: 18px;
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: color var(--transition);
        }
        .logo-link:hover {
            color: var(--primary-soft);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 17px;
            flex-shrink: 0;
        }
        .nav-search-wrap {
            flex: 1;
            max-width: 480px;
            display: flex;
            align-items: center;
            position: relative;
            margin: 0 auto;
        }
        .nav-search-input {
            width: 100%;
            height: 44px;
            background: var(--surface);
            border: 1.5px solid var(--border-strong);
            border-radius: var(--radius-pill);
            padding: 0 20px 0 46px;
            font-size: 15px;
            color: var(--text);
            outline: none;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .nav-search-input::placeholder {
            color: var(--text-muted);
            font-size: 14px;
        }
        .nav-search-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(198, 242, 78, 0.25);
        }
        .nav-search-icon {
            position: absolute;
            left: 18px;
            pointer-events: none;
            color: var(--text-muted);
            font-size: 16px;
        }
        .nav-search-toggle {
            display: none;
            width: 44px;
            height: 44px;
            background: var(--surface);
            border: 1.5px solid var(--border-strong);
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
            transition: background var(--transition), color var(--transition);
        }
        .nav-search-toggle:hover {
            background: var(--bg-alt);
        }
        .nav-search-toggle:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        .mobile-search-panel {
            display: none;
            padding: 0 0 14px 0;
        }
        .mobile-search-panel.open {
            display: block;
        }
        .nav-cats {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: nowrap;
            padding: 0 0 12px 0;
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--border-strong) transparent;
        }
        .nav-cats::-webkit-scrollbar {
            height: 4px;
        }
        .nav-cats::-webkit-scrollbar-thumb {
            background: var(--border-strong);
            border-radius: 4px;
        }
        .nav-cat {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 18px;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }
        .nav-cat:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-1px);
        }
        .nav-cat.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .nav-cat.active::before {
            content: '';
            position: absolute;
            left: 50%;
            bottom: -8px;
            transform: translateX(-50%);
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }
        .nav-cat:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-bar {
            background: var(--bg-alt);
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
            font-size: 14px;
            color: var(--text-muted);
        }
        .breadcrumb-bar .container {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb-bar a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .breadcrumb-bar a:hover {
            color: var(--highlight);
        }
        .breadcrumb-sep {
            color: var(--text-muted);
            user-select: none;
        }
        .breadcrumb-current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== Category Header ===== */
        .category-header {
            background: linear-gradient(135deg, var(--primary) 0%, #1d4230 55%, #1b3b2b 100%);
            padding: 64px 0 56px;
            position: relative;
            overflow: hidden;
        }
        .category-header::after {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 340px;
            height: 340px;
            border-radius: 50%;
            background: rgba(198, 242, 78, 0.08);
            pointer-events: none;
        }
        .category-header .container {
            position: relative;
            z-index: 1;
        }
        .cat-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(198, 242, 78, 0.16);
            color: var(--accent);
            border: 1px solid rgba(198, 242, 78, 0.3);
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 18px;
        }
        .category-header h1 {
            font-size: 34px;
            font-weight: 700;
            color: #fff;
            line-height: 1.35;
            margin: 0 0 14px;
            letter-spacing: 0.01em;
        }
        .category-header .cat-subtitle {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.78);
            max-width: 680px;
            margin: 0 0 28px;
            line-height: 1.75;
        }
        .cat-search-row {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }
        .cat-search-box {
            flex: 1;
            min-width: 280px;
            max-width: 560px;
            position: relative;
        }
        .cat-search-box .cat-search-input {
            width: 100%;
            height: 48px;
            background: var(--surface);
            border: 1.5px solid transparent;
            border-radius: var(--radius-pill);
            padding: 0 20px 0 48px;
            font-size: 15px;
            color: var(--text);
            outline: none;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .cat-search-box .cat-search-input::placeholder {
            color: var(--text-muted);
        }
        .cat-search-box .cat-search-input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(198, 242, 78, 0.28);
        }
        .cat-search-box .cat-search-icon {
            position: absolute;
            left: 18px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 17px;
            pointer-events: none;
        }
        .filter-tags {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-tag {
            padding: 7px 16px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-pill);
            color: rgba(255, 255, 255, 0.82);
            font-size: 13px;
            font-weight: 500;
            background: transparent;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .filter-tag:hover {
            border-color: var(--accent);
            color: var(--accent);
        }
        .filter-tag.active {
            background: var(--accent);
            color: var(--primary);
            border-color: var(--accent);
            font-weight: 700;
        }
        .filter-tag:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Section Base ===== */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-white {
            background: var(--surface);
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.4;
            margin: 0 0 12px;
            letter-spacing: 0.01em;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0 0 36px;
            max-width: 720px;
        }
        .section-head {
            margin-bottom: 36px;
        }
        .section-head.with-action {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }
        .section-head .section-subtitle {
            margin-bottom: 0;
        }
        .section-action-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            white-space: nowrap;
            transition: color var(--transition);
        }
        .section-action-link:hover {
            color: var(--highlight);
        }

        /* ===== Featured Content ===== */
        .featured-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .featured-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .featured-media {
            position: relative;
            min-height: 380px;
            overflow: hidden;
        }
        .featured-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }
        .featured-media .featured-flag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--highlight);
            color: #fff;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.04em;
            z-index: 2;
        }
        .featured-body {
            padding: 36px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-date {
            font-size: 13px;
            color: var(--text-muted);
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.04em;
            margin-bottom: 14px;
        }
        .featured-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.5;
            margin: 0 0 14px;
        }
        .featured-excerpt {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin: 0 0 22px;
        }
        .featured-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 22px;
        }
        .featured-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 13px;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 12px;
            color: var(--text-secondary);
            font-weight: 500;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--highlight);
            border-color: var(--highlight);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--bg-alt);
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--accent);
            color: var(--primary);
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: var(--highlight);
            border-color: var(--highlight);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn:disabled {
            background: var(--text-muted);
            color: #fff;
            border-color: var(--text-muted);
            cursor: not-allowed;
            transform: none;
            opacity: 0.65;
        }
        .btn:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== News List ===== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news-item {
            display: grid;
            grid-template-columns: 220px 1fr;
            gap: 24px;
            padding: 24px 0;
            border-bottom: 1px solid var(--border);
            transition: background var(--transition);
        }
        .news-item:first-child {
            border-top: 1px solid var(--border);
        }
        .news-item:hover {
            background: rgba(255, 255, 255, 0.6);
        }
        .news-thumb {
            border-radius: var(--radius-sm);
            overflow: hidden;
            height: 140px;
            background: var(--bg-alt);
            border: 1px solid var(--border);
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }
        .news-item:hover .news-thumb img {
            transform: scale(1.05);
        }
        .news-body {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 10px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .news-date {
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.03em;
        }
        .news-tag {
            display: inline-flex;
            align-items: center;
            padding: 3px 11px;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 11px;
            font-weight: 600;
            color: var(--text-secondary);
            letter-spacing: 0.03em;
        }
        .news-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.55;
            margin: 0 0 8px;
        }
        .news-title a {
            color: inherit;
            transition: color var(--transition);
        }
        .news-title a:hover {
            color: var(--highlight);
        }
        .news-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0 0 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-readmore {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            transition: color var(--transition);
            align-self: flex-start;
        }
        .news-readmore:hover {
            color: var(--highlight);
        }
        .news-readmore .arrow {
            transition: transform var(--transition);
            display: inline-block;
        }
        .news-readmore:hover .arrow {
            transform: translateX(4px);
        }

        /* ===== Feature Grid ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .feature-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 0;
            background: var(--accent);
            transition: height var(--transition);
        }
        .feature-item:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border-strong);
        }
        .feature-item:hover::before {
            height: 100%;
        }
        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
            border: 1px solid var(--border);
        }
        .feature-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 10px;
        }
        .feature-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }

        /* ===== Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step-counter;
        }
        .step-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 22px;
            position: relative;
            transition: all var(--transition);
        }
        .step-item:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--accent);
            font-size: 16px;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .step-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 8px;
        }
        .step-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: box-shadow var(--transition), border-color var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-item.open {
            border-left: 3px solid var(--accent);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            text-align: left;
            line-height: 1.6;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: var(--bg-alt);
        }
        .faq-question:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: -3px;
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--primary);
            transition: transform var(--transition), background var(--transition);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.85;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 22px;
        }
        .faq-answer p {
            margin: 0;
        }

        /* ===== CTA Section ===== */
        .cta-box {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            right: -60px;
            bottom: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(198, 242, 78, 0.08);
            pointer-events: none;
        }
        .cta-box .cta-title {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 10px;
            line-height: 1.45;
        }
        .cta-box .cta-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            margin: 0;
            line-height: 1.8;
            max-width: 480px;
        }
        .cta-box .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .cta-input-wrap {
            position: relative;
            flex: 1;
            min-width: 240px;
            max-width: 360px;
        }
        .cta-input-wrap .cta-input {
            width: 100%;
            height: 48px;
            background: var(--surface);
            border: 1.5px solid transparent;
            border-radius: var(--radius-pill);
            padding: 0 20px;
            font-size: 14px;
            color: var(--text);
            outline: none;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .cta-input-wrap .cta-input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(198, 242, 78, 0.28);
        }
        .cta-input-wrap .cta-input::placeholder {
            color: var(--text-muted);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0d1d16;
            color: rgba(255, 255, 255, 0.78);
            padding: 56px 0 0;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand .logo-link {
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand .logo-link .logo-icon {
            background: var(--accent);
            color: var(--primary);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            margin: 0 0 16px;
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 16px;
            letter-spacing: 0.03em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul li {
            margin: 0;
        }
        .footer-col ul a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color var(--transition);
            text-decoration: none;
        }
        .footer-col ul a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding: 20px 0 28px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.52);
        }
        .footer-bottom-links {
            display: flex;
            gap: 18px;
            align-items: center;
        }
        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 13px;
            transition: color var(--transition);
        }
        .footer-bottom-links a:hover {
            color: var(--accent);
        }
        .footer-bottom span {
            white-space: nowrap;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .featured-card {
                grid-template-columns: 1fr;
            }
            .featured-media {
                min-height: 280px;
                position: relative;
                height: 280px;
            }
            .featured-media img {
                position: static;
                height: 100%;
                width: 100%;
                object-fit: cover;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-item {
                grid-template-columns: 160px 1fr;
                gap: 18px;
            }
            .news-thumb {
                height: 110px;
            }
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-gap: 56px;
            }
            .header-main {
                gap: 12px;
                flex-wrap: wrap;
            }
            .nav-search-wrap.desktop-search {
                display: none;
            }
            .nav-search-toggle {
                display: flex;
            }
            .mobile-search-panel.open {
                display: flex;
            }
            .nav-cats {
                gap: 6px;
            }
            .nav-cat {
                padding: 6px 14px;
                font-size: 13px;
            }
            .category-header h1 {
                font-size: 26px;
            }
            .section-title {
                font-size: 24px;
            }
            .featured-card {
                grid-template-columns: 1fr;
            }
            .featured-media {
                height: 220px;
                min-height: 220px;
            }
            .featured-body {
                padding: 24px 20px;
            }
            .featured-title {
                font-size: 19px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .news-item {
                grid-template-columns: 1fr;
                gap: 12px;
                padding: 20px 0;
            }
            .news-thumb {
                height: 180px;
            }
            .news-title {
                font-size: 16px;
            }
            .cta-box {
                padding: 32px 22px;
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-box .cta-title {
                font-size: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .footer-bottom-links {
                flex-wrap: wrap;
            }
        }
        @media (max-width: 520px) {
            .category-header {
                padding: 40px 0 36px;
            }
            .category-header h1 {
                font-size: 22px;
            }
            .category-header .cat-subtitle {
                font-size: 15px;
            }
            .cat-search-box {
                min-width: 100%;
            }
            .filter-tags {
                gap: 6px;
            }
            .filter-tag {
                padding: 5px 12px;
                font-size: 12px;
            }
            .section {
                padding: var(--section-gap-mobile) 0;
            }
            .section-title {
                font-size: 21px;
            }
            .featured-title {
                font-size: 17px;
            }
            .featured-excerpt {
                font-size: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .news-thumb {
                height: 160px;
            }
            .btn {
                padding: 10px 20px;
                font-size: 14px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #122B1F;
            --primary-soft: #1A3326;
            --accent: #C6F24E;
            --accent-deep: #B4F04D;
            --highlight: #FF7A1A;
            --bg: #F5F3ED;
            --bg-alt: #F4F6F3;
            --surface: #FFFFFF;
            --text: #111111;
            --text-secondary: #5A5F5A;
            --text-muted: #92988F;
            --border: #E5E7E0;
            --border-strong: #D9DED6;
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 20px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(18, 43, 31, 0.04);
            --shadow: 0 8px 24px rgba(18, 43, 31, 0.06);
            --shadow-lg: 0 18px 40px rgba(18, 43, 31, 0.14);
            --font-sans: 'PingFang SC', 'Source Han Sans SC', 'Noto Sans SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --section-gap: 80px;
            --section-gap-mobile: 44px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        a:hover {
            color: var(--highlight);
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button {
            cursor: pointer;
        }

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

        /* ===== Header / Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 14px rgba(18, 43, 31, 0.04);
        }

        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 14px 0;
            flex-wrap: nowrap;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            color: var(--primary);
            font-weight: 700;
            font-size: 18px;
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: color var(--transition);
        }

        .logo-link:hover {
            color: var(--primary-soft);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 17px;
            flex-shrink: 0;
        }

        .nav-search-wrap {
            flex: 1;
            max-width: 480px;
            display: flex;
            align-items: center;
            position: relative;
            margin: 0 auto;
        }

        .nav-search-input {
            width: 100%;
            height: 44px;
            background: var(--surface);
            border: 1.5px solid var(--border-strong);
            border-radius: var(--radius-pill);
            padding: 0 20px 0 46px;
            font-size: 15px;
            color: var(--text);
            outline: none;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .nav-search-input::placeholder {
            color: var(--text-muted);
            font-size: 14px;
        }

        .nav-search-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(198, 242, 78, 0.25);
        }

        .nav-search-icon {
            position: absolute;
            left: 18px;
            pointer-events: none;
            color: var(--text-muted);
            font-size: 16px;
        }

        .nav-search-toggle {
            display: none;
            width: 44px;
            height: 44px;
            background: var(--surface);
            border: 1.5px solid var(--border-strong);
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
            transition: background var(--transition), color var(--transition);
        }

        .nav-search-toggle:hover {
            background: var(--bg-alt);
        }

        .nav-search-toggle:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

        .nav-cats {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: nowrap;
            padding: 0 0 12px 0;
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--border-strong) transparent;
        }

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

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

        .nav-cat {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 18px;
            border-radius: var(--radius-pill);
            background: transparent;
            border: 1px solid transparent;
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            transition: background var(--transition), color var(--transition), border-color var(--transition);
        }

        .nav-cat:hover {
            background: var(--bg-alt);
            color: var(--primary);
            border-color: var(--border);
        }

        .nav-cat:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

        .nav-cat.active {
            background: var(--primary);
            color: var(--accent);
            border-color: var(--primary);
            font-weight: 600;
        }

        .mobile-search-panel {
            display: none;
            padding: 10px 0;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-section {
            padding: 22px 0 10px;
            background: var(--bg);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            list-style: none;
        }

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

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

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }

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

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

        /* ===== Category Hero ===== */
        .category-hero {
            position: relative;
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            padding: 38px 0 44px;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 60%, var(--highlight) 100%);
        }

        .category-hero-inner {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .category-hero h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            letter-spacing: 0.01em;
        }

        .category-hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 780px;
            line-height: 1.85;
        }

        .category-search-row {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 6px;
        }

        .category-search {
            flex: 1;
            min-width: 260px;
            max-width: 520px;
            position: relative;
            display: flex;
            align-items: center;
        }

        .category-search input {
            width: 100%;
            height: 46px;
            background: var(--surface);
            border: 1.5px solid var(--border-strong);
            border-radius: var(--radius-pill);
            padding: 0 20px 0 46px;
            font-size: 15px;
            color: var(--text);
            outline: none;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .category-search input::placeholder {
            color: var(--text-muted);
            font-size: 14px;
        }

        .category-search input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(198, 242, 78, 0.25);
        }

        .category-search-icon {
            position: absolute;
            left: 18px;
            pointer-events: none;
            color: var(--text-muted);
            font-size: 16px;
        }

        .filter-tags {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            margin-top: 4px;
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background: var(--bg-alt);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            white-space: nowrap;
            transition: all var(--transition);
            cursor: pointer;
        }

        .filter-tag:hover {
            background: var(--accent);
            color: var(--primary);
            border-color: var(--accent-deep);
        }

        .filter-tag.active {
            background: var(--primary);
            color: var(--accent);
            border-color: var(--primary);
            font-weight: 600;
        }

        /* ===== Section base ===== */
        main {
            display: block;
        }

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

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 32px;
            max-width: 720px;
        }

        /* ===== Content List ===== */
        .content-list-section {
            padding: 48px 0;
            background: var(--bg);
        }

        .content-list-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

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

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

        .content-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }

        .content-card:hover::before {
            transform: scaleX(1);
        }

        .content-card-media {
            height: 180px;
            overflow: hidden;
            background: var(--bg-alt);
            position: relative;
        }

        .content-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .content-card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }

        .content-card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
        }

        .content-card-date {
            font-family: 'SF Mono', 'Consolas', monospace;
            letter-spacing: 0.02em;
            color: var(--text-secondary);
        }

        .content-card-tag {
            display: inline-flex;
            align-items: center;
            padding: 2px 10px;
            border-radius: var(--radius-pill);
            background: var(--bg-alt);
            border: 1px solid var(--border);
            color: var(--primary-soft);
            font-size: 12px;
            font-weight: 500;
            white-space: nowrap;
        }

        .content-card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.5;
            transition: color var(--transition);
        }

        .content-card-title a {
            color: inherit;
        }

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

        .content-card-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            flex: 1;
        }

        .content-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: color var(--transition), gap var(--transition);
            margin-top: 4px;
        }

        .content-card-link:hover {
            color: var(--highlight);
            gap: 10px;
        }

        /* ===== Deep Content ===== */
        .deep-content-section {
            padding: 56px 0;
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .deep-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .deep-content-block {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .deep-content-block h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.5;
        }

        .deep-content-block h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary-soft);
            line-height: 1.5;
            margin-top: 8px;
        }

        .deep-content-block p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
        }

        .deep-content-block ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .deep-content-block ul li {
            position: relative;
            padding-left: 24px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .deep-content-block ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-deep);
            border: 2px solid var(--primary);
        }

        .deep-content-full {
            grid-column: 1 / -1;
            margin-top: 32px;
            padding-top: 32px;
            border-top: 1px solid var(--border);
        }

        .deep-content-full h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.5;
            margin-bottom: 16px;
        }

        .deep-content-full p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 14px;
        }

        .deep-content-full p:last-child {
            margin-bottom: 0;
        }

        /* ===== Stats Strip ===== */
        .stats-strip {
            background: var(--primary);
            padding: 28px 0;
        }

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

        .stat-item {
            text-align: center;
            padding: 12px;
            border-radius: var(--radius);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .stat-number {
            font-size: 30px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.3;
            letter-spacing: 0.02em;
        }

        .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 4px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 56px 0;
            background: var(--bg);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 24px;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            background: transparent;
            border: none;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            transition: color var(--transition), background var(--transition);
        }

        .faq-question:hover {
            color: var(--primary-soft);
            background: var(--bg-alt);
        }

        .faq-question:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: -3px;
        }

        .faq-icon {
            flex-shrink: 0;
            font-size: 18px;
            color: var(--text-muted);
            transition: transform var(--transition), color var(--transition);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), padding 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 22px 20px;
        }

        .faq-item.open .faq-question {
            color: var(--primary);
            border-left: 4px solid var(--accent-deep);
        }

        .faq-item.open {
            border-left: 4px solid var(--accent-deep);
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 48px 0;
            background: var(--bg);
        }

        .cta-card {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            flex-wrap: wrap;
        }

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

        .cta-text h2 {
            font-size: 24px;
            font-weight: 700;
            color: #FFFFFF;
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .cta-text p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.8;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            text-align: center;
            transition: all var(--transition);
            border: 2px solid transparent;
            text-decoration: none;
        }

        .btn:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

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

        .btn-primary:hover {
            background: var(--highlight);
            border-color: var(--highlight);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 122, 26, 0.25);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

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

        .btn-accent:hover {
            background: var(--accent-deep);
            border-color: var(--accent-deep);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(198, 242, 78, 0.25);
        }

        .btn-accent:active {
            transform: translateY(0);
            box-shadow: none;
        }

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

        .btn-outline:hover {
            background: var(--bg-alt);
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }

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

        .btn-disabled,
        .btn:disabled {
            background: var(--text-muted);
            color: #FFFFFF;
            border-color: var(--text-muted);
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
            opacity: 0.7;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.8);
            padding: 52px 0 28px;
            margin-top: 0;
        }

        .site-footer .logo-link {
            color: #FFFFFF;
            font-size: 18px;
        }

        .site-footer .logo-link:hover {
            color: var(--accent);
        }

        .site-footer .logo-icon {
            background: var(--accent);
            color: var(--primary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            margin-top: 12px;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }

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

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color var(--transition), padding-left var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 22px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }

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

        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 13px;
            transition: color var(--transition);
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .nav-search-wrap {
                max-width: 300px;
            }

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

            .deep-content-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }

            .section {
                padding: 56px 0;
            }
        }

        @media (max-width: 768px) {
            .header-main {
                gap: 12px;
                padding: 10px 0;
            }

            .logo-link {
                font-size: 16px;
            }

            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
                border-radius: 8px;
            }

            .nav-search-wrap {
                display: none;
            }

            .nav-search-toggle {
                display: flex;
            }

            .mobile-search-panel {
                display: block;
            }

            .nav-cats {
                padding: 0 0 10px 0;
                gap: 6px;
            }

            .nav-cat {
                padding: 6px 14px;
                font-size: 13px;
            }

            .category-hero {
                padding: 26px 0 32px;
            }

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

            .category-search {
                max-width: 100%;
            }

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

            .content-card-media {
                height: 160px;
            }

            .stats-strip-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }

            .stat-number {
                font-size: 24px;
            }

            .cta-card {
                padding: 28px 22px;
                flex-direction: column;
                align-items: flex-start;
                gap: 18px;
            }

            .cta-actions {
                width: 100%;
                flex-direction: column;
            }

            .cta-actions .btn {
                width: 100%;
            }

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

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

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

            .section {
                padding: 44px 0;
            }

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

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .logo-link span:last-child {
                font-size: 15px;
            }

            .category-hero h1 {
                font-size: 22px;
            }

            .category-hero-desc {
                font-size: 14px;
            }

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

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

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

            .stats-strip-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }

            .stat-number {
                font-size: 20px;
            }

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

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

            .faq-answer {
                padding: 0 16px;
            }

            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #122B1F;
            --primary-soft: #1A3326;
            --accent: #C6F24E;
            --accent-deep: #B4F04D;
            --highlight: #FF7A1A;
            --bg: #F5F3ED;
            --bg-alt: #F4F6F3;
            --surface: #FFFFFF;
            --text: #111111;
            --text-secondary: #5A5F5A;
            --text-muted: #92988F;
            --border: #E5E7E0;
            --border-strong: #D9DED6;
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 20px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(18, 43, 31, 0.04);
            --shadow: 0 8px 24px rgba(18, 43, 31, 0.06);
            --shadow-lg: 0 18px 40px rgba(18, 43, 31, 0.14);
            --font-sans: 'PingFang SC', 'Source Han Sans SC', 'Noto Sans SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --section-gap: 80px;
            --section-gap-mobile: 44px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--highlight);
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
        }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 14px rgba(18, 43, 31, 0.04);
        }
        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 14px 0;
            flex-wrap: nowrap;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            color: var(--primary);
            font-weight: 700;
            font-size: 18px;
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: color var(--transition);
        }
        .logo-link:hover {
            color: var(--primary-soft);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 17px;
            flex-shrink: 0;
        }
        .nav-search-wrap {
            flex: 1;
            max-width: 480px;
            display: flex;
            align-items: center;
            position: relative;
            margin: 0 auto;
        }
        .nav-search-input {
            width: 100%;
            height: 44px;
            background: var(--surface);
            border: 1.5px solid var(--border-strong);
            border-radius: var(--radius-pill);
            padding: 0 20px 0 46px;
            font-size: 15px;
            color: var(--text);
            outline: none;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .nav-search-input::placeholder {
            color: var(--text-muted);
            font-size: 14px;
        }
        .nav-search-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(198, 242, 78, 0.25);
        }
        .nav-search-icon {
            position: absolute;
            left: 18px;
            pointer-events: none;
            color: var(--text-muted);
            font-size: 16px;
        }
        .nav-search-toggle {
            display: none;
            width: 44px;
            height: 44px;
            background: var(--surface);
            border: 1.5px solid var(--border-strong);
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
            transition: background var(--transition), color var(--transition);
        }
        .nav-search-toggle:hover {
            background: var(--bg-alt);
        }
        .nav-search-toggle:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        .mobile-search-panel {
            display: none;
            padding: 0 0 12px 0;
        }
        .nav-cats {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: nowrap;
            padding: 0 0 12px 0;
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--border-strong) transparent;
        }
        .nav-cats::-webkit-scrollbar {
            height: 4px;
        }
        .nav-cats::-webkit-scrollbar-thumb {
            background: var(--border-strong);
            border-radius: 4px;
        }
        .nav-cat {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 18px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: background var(--transition), color var(--transition), border-color var(--transition);
            border: 1px solid transparent;
        }
        .nav-cat:hover {
            background: var(--bg-alt);
            color: var(--primary);
            border-color: var(--border);
        }
        .nav-cat.active {
            background: var(--primary);
            color: var(--accent);
            border-color: var(--primary);
        }
        .nav-cat:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        /* Breadcrumb */
        .breadcrumb-bar {
            background: var(--bg-alt);
            padding: 14px 0;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--highlight);
        }
        .breadcrumb .sep {
            color: var(--border-strong);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }
        /* Category Hero */
        .cat-hero {
            padding: 56px 0 44px;
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }
        .cat-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(18, 43, 31, 0.95) 0%, rgba(18, 43, 31, 0.72) 55%, rgba(18, 43, 31, 0.35) 100%);
            z-index: 1;
        }
        .cat-hero .container {
            position: relative;
            z-index: 2;
        }
        .cat-hero h1 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .cat-hero .cat-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 720px;
            line-height: 1.9;
        }
        .cat-hero .cat-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            margin-top: 28px;
        }
        .cat-hero .cat-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .cat-hero .stat-num {
            font-size: 22px;
            font-weight: 700;
            color: var(--accent);
        }
        .cat-hero .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
        }
        /* Filter Bar */
        .filter-bar {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
            margin-bottom: 0;
        }
        .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            background: var(--surface);
            border: 1px solid var(--border);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .filter-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--bg-alt);
        }
        .filter-tag.active {
            background: var(--primary);
            color: var(--accent);
            border-color: var(--primary);
        }
        .filter-tag:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        /* Section Base */
        section {
            padding: var(--section-gap) 0;
        }
        .section-header {
            margin-bottom: 36px;
        }
        .section-header .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            background: var(--accent);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }
        .section-header h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.01em;
            line-height: 1.4;
        }
        .section-header p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            margin-top: 10px;
            line-height: 1.8;
        }
        /* Guide List */
        .guide-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .guide-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 26px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
            display: flex;
            flex-direction: column;
            gap: 14px;
            position: relative;
            overflow: hidden;
        }
        .guide-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 0;
            background: var(--accent);
            transition: height var(--transition);
        }
        .guide-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--border-strong);
        }
        .guide-card:hover::before {
            height: 100%;
        }
        .guide-card .card-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .guide-card .guide-date {
            font-size: 13px;
            color: var(--text-muted);
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.03em;
        }
        .guide-card .guide-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: var(--radius-pill);
            background: var(--bg-alt);
            color: var(--primary);
            border: 1px solid var(--border);
            white-space: nowrap;
        }
        .guide-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.5;
        }
        .guide-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            flex: 1;
        }
        .guide-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: color var(--transition);
        }
        .guide-card .card-link:hover {
            color: var(--highlight);
        }
        .guide-card .card-link .arrow {
            display: inline-block;
            transition: transform var(--transition);
        }
        .guide-card .card-link:hover .arrow {
            transform: translateX(4px);
        }
        /* Guide Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .step-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 22px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
            text-align: left;
        }
        .step-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .step-num {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            margin-bottom: 16px;
        }
        .step-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }
        /* Scene Blocks */
        .scene-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            padding: 40px 0;
            border-bottom: 1px solid var(--border);
        }
        .scene-block:last-of-type {
            border-bottom: none;
        }
        .scene-block .scene-text h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.5;
        }
        .scene-block .scene-text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
        }
        .scene-block .scene-img {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            aspect-ratio: 16/9;
            background: var(--bg-alt);
        }
        .scene-block .scene-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        /* FAQ */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: box-shadow var(--transition), border-color var(--transition);
        }
        .faq-item.active {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }
        .faq-item button {
            width: 100%;
            background: none;
            border: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            text-align: left;
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            transition: color var(--transition), background var(--transition);
        }
        .faq-item button:hover {
            background: var(--bg-alt);
            color: var(--primary);
        }
        .faq-item button:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: -2px;
        }
        .faq-item .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-alt);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
            transition: transform var(--transition), background var(--transition), color var(--transition);
        }
        .faq-item.active .faq-icon {
            background: var(--primary);
            color: var(--accent);
            transform: rotate(45deg);
        }
        .faq-panel {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .faq-panel-inner {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
        }
        /* CTA */
        .cta-band {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 32px;
            align-items: center;
            position: relative;
            overflow: hidden;
        }
        .cta-band::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(18, 43, 31, 0.98) 40%, rgba(18, 43, 31, 0.6) 100%);
            z-index: 1;
        }
        .cta-band .cta-content {
            position: relative;
            z-index: 2;
        }
        .cta-band .cta-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .cta-band .cta-content p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.8;
        }
        .cta-band .cta-actions {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            gap: 12px;
            align-items: stretch;
        }
        .btn-primary,
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 700;
            transition: all var(--transition);
            cursor: pointer;
            border: none;
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary);
            border: 1px solid var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-deep);
            border-color: var(--accent-deep);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(198, 242, 78, 0.3);
            color: var(--primary);
        }
        .btn-primary:focus-visible {
            outline: 3px solid var(--highlight);
            outline-offset: 2px;
        }
        .btn-secondary {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-secondary:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-disabled,
        .btn-primary:disabled,
        .btn-secondary:disabled {
            background: var(--border-strong);
            color: var(--text-muted);
            border-color: var(--border-strong);
            cursor: not-allowed;
            transform: none !important;
            box-shadow: none !important;
        }
        /* Pagination placeholder */
        .pagination-placeholder {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 28px 0 0;
        }
        .page-dot {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 600;
            border: 1px solid var(--border);
            background: var(--surface);
            color: var(--text-secondary);
            transition: all var(--transition);
            cursor: default;
        }
        .page-dot.active {
            background: var(--primary);
            color: var(--accent);
            border-color: var(--primary);
        }
        /* Footer */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 0;
            margin-top: var(--section-gap);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }
        .footer-brand .logo-link {
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand .logo-link:hover {
            color: var(--accent);
        }
        .footer-brand .logo-icon {
            background: var(--accent);
            color: var(--primary);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.68);
            margin-top: 8px;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.68);
            font-size: 14px;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom-links {
            display: flex;
            gap: 16px;
        }
        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition);
        }
        .footer-bottom-links a:hover {
            color: var(--accent);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .header-main {
                gap: 12px;
            }
            .nav-search-wrap {
                max-width: 360px;
            }
            .cat-hero h1 {
                font-size: 28px;
            }
            .guide-list {
                grid-template-columns: 1fr 1fr;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .header-main {
                flex-wrap: nowrap;
                padding: 10px 0;
            }
            .logo-link {
                font-size: 16px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
                border-radius: 8px;
            }
            .nav-search-wrap {
                display: none;
            }
            .nav-search-toggle {
                display: flex;
            }
            .mobile-search-panel {
                display: block;
            }
            .mobile-search-panel.show {
                display: block;
            }
            .nav-cats {
                padding: 0 0 10px 0;
                gap: 6px;
            }
            .nav-cat {
                padding: 6px 14px;
                font-size: 13px;
            }
            .cat-hero {
                padding: 36px 0 28px;
            }
            .cat-hero h1 {
                font-size: 24px;
            }
            .cat-hero .cat-desc {
                font-size: 15px;
            }
            .cat-hero .cat-stats {
                gap: 20px;
            }
            .guide-list {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .guide-card {
                padding: 20px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .scene-block {
                grid-template-columns: 1fr;
                gap: 20px;
                padding: 28px 0;
            }
            .cta-band {
                grid-template-columns: 1fr;
                padding: 32px 24px;
                gap: 20px;
            }
            .cta-band .cta-content h2 {
                font-size: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom-links {
                justify-content: center;
            }
            section {
                padding: var(--section-gap-mobile) 0;
            }
            .section-header h2 {
                font-size: 22px;
            }
        }
        @media (max-width: 520px) {
            .logo-link {
                font-size: 14px;
                gap: 6px;
            }
            .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 13px;
                border-radius: 7px;
            }
            .nav-cat {
                padding: 5px 12px;
                font-size: 12px;
            }
            .cat-hero h1 {
                font-size: 21px;
                line-height: 1.45;
            }
            .cat-hero .cat-desc {
                font-size: 14px;
            }
            .cat-hero .stat-num {
                font-size: 18px;
            }
            .filter-tag {
                padding: 5px 12px;
                font-size: 12px;
            }
            .guide-card h3 {
                font-size: 16px;
            }
            .guide-card p {
                font-size: 14px;
            }
            .cta-band .cta-actions {
                align-items: stretch;
            }
            .btn-primary,
            .btn-secondary {
                padding: 10px 20px;
                font-size: 14px;
            }
        }