/* roulang page: index */
:root {
            --primary: #0F3D2E;
            --primary-hover: #0A2D22;
            --accent: #C8A96A;
            --accent-soft: #F0E8D8;
            --danger: #C94F3D;
            --bg: #F7F5F0;
            --card-bg: #FFFFFF;
            --dark-bg: #0E2A24;
            --text-primary: #1A1A1A;
            --text-secondary: #5C645F;
            --text-inverse: #F9F7F2;
            --border: #E5E1D8;
            --border-dark: rgba(255,255,255,.12);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-tag: 999px;
            --radius-img: 12px;
            --shadow-card: 0 8px 20px rgba(15,61,46,.08);
            --shadow-card-hover: 0 12px 28px rgba(15,61,46,.14);
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STSong', 'SimSun', serif;
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --section-padding: 64px;
            --container-max: 1200px;
            --gutter: 24px;
            --nav-height: 64px;
            --transition: 0.22s ease;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        a:focus-visible, button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        input, select, textarea {
            font-family: inherit;
            font-size: 14px;
        }

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

        /* ========== Header & Navigation ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255,255,255,.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

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

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 18px;
            color: var(--primary);
            letter-spacing: 0.5px;
            line-height: 1.3;
            white-space: nowrap;
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--accent);
            border-radius: 8px;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .brand-text .brand-main {
            font-size: 17px;
            font-weight: 700;
        }

        .brand-text .brand-sub {
            font-size: 11px;
            font-weight: 400;
            color: var(--text-secondary);
            letter-spacing: 1px;
        }

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

        .main-nav a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            padding: 8px 14px;
            border-radius: 8px;
            transition: background var(--transition), color var(--transition);
            white-space: nowrap;
        }

        .main-nav a:hover {
            background: var(--bg);
            color: var(--primary);
        }

        .main-nav a.active {
            background: var(--primary);
            color: var(--text-inverse);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: var(--text-inverse);
            font-size: 14px;
            font-weight: 600;
            padding: 8px 18px;
            border-radius: var(--radius-btn);
            transition: background var(--transition), transform var(--transition);
            white-space: nowrap;
        }

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

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 6px;
        }

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

        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: var(--card-bg);
            border-bottom: 1px solid var(--border);
            padding: 16px 20px 24px;
            z-index: 999;
            flex-direction: column;
            gap: 6px;
        }

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

        .mobile-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            padding: 12px 14px;
            border-radius: 8px;
            transition: background var(--transition);
        }

        .mobile-nav a:hover {
            background: var(--bg);
        }

        .mobile-nav a.active {
            background: var(--primary);
            color: var(--text-inverse);
        }

        /* ========== Hero ========== */
        .hero {
            background: var(--primary);
            color: var(--text-inverse);
            padding: 72px 0 64px;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/d5ded28a3c2b9e31.webp') center/cover no-repeat;
            opacity: 0.15;
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content h1 {
            font-family: var(--font-serif);
            font-size: 34px;
            line-height: 1.35;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .hero-content .hero-sub {
            font-size: 16px;
            line-height: 1.7;
            color: rgba(249,247,242,.85);
            margin-bottom: 28px;
            max-width: 520px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 13px 26px;
            border-radius: var(--radius-btn);
            transition: all var(--transition);
            min-height: 44px;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--card-bg);
            color: var(--primary);
        }

        .btn-primary:hover {
            background: var(--accent-soft);
            transform: translateY(-2px);
        }

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

        .btn-accent:hover {
            background: #D9BC7C;
            transform: translateY(-2px);
        }

        .btn-outline-light {
            background: transparent;
            color: var(--text-inverse);
            border: 1px solid rgba(255,255,255,.4);
        }

        .btn-outline-light:hover {
            background: rgba(255,255,255,.1);
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }

        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-phone-mock {
            width: 300px;
            height: 580px;
            background: var(--card-bg);
            border-radius: 32px;
            padding: 16px;
            box-shadow: 0 30px 60px rgba(0,0,0,.3);
            position: relative;
        }

        .hero-phone-mock .phone-screen {
            width: 100%;
            height: 100%;
            border-radius: 20px;
            overflow: hidden;
            background: var(--bg);
            position: relative;
        }

        .hero-phone-mock .phone-screen img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 20px;
        }

        .hero-phone-mock .phone-notch {
            position: absolute;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            width: 120px;
            height: 24px;
            background: var(--primary);
            border-radius: 999px;
            z-index: 2;
        }

        /* ========== Download Toolbar ========== */
        .download-toolbar {
            background: var(--card-bg);
            border-bottom: 1px solid var(--border);
            padding: 16px 0;
        }

        .download-toolbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .toolbar-info {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .toolbar-info .tool-item {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .toolbar-info .tool-item .tool-label {
            font-weight: 600;
            color: var(--text-primary);
        }

        .toolbar-actions {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .toolbar-actions .btn {
            font-size: 13px;
            padding: 8px 16px;
            min-height: 36px;
        }

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

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

        .section-dark {
            background: var(--dark-bg);
            color: var(--text-inverse);
        }

        .section-header {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 40px;
        }

        .section-header h2 {
            font-family: var(--font-serif);
            font-size: 28px;
            line-height: 1.4;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

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

        .section-header p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .section-dark .section-header p {
            color: rgba(249,247,242,.7);
        }

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

        .step-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            text-align: center;
            transition: box-shadow var(--transition), transform var(--transition);
        }

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

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: var(--accent);
            font-size: 20px;
            font-weight: 700;
            border-radius: 50%;
            margin-bottom: 16px;
        }

        .step-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

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

        /* ========== Badge Strip ========== */
        .badge-strip {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .badge-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-tag);
            padding: 10px 20px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-primary);
            transition: border-color var(--transition);
        }

        .badge-item:hover {
            border-color: var(--accent);
        }

        .badge-icon {
            color: var(--primary);
            font-size: 16px;
            font-weight: 700;
        }

        /* ========== Category Matrix ========== */
        .category-matrix {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gutter);
        }

        .category-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-top: 3px solid var(--accent);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            transition: box-shadow var(--transition), transform var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .category-card .cat-icon {
            font-size: 32px;
            margin-bottom: 14px;
        }

        .category-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .category-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 18px;
            flex-grow: 1;
        }

        .category-card .btn {
            align-self: flex-start;
            font-size: 13px;
            padding: 9px 18px;
            min-height: 38px;
        }

        /* ========== Feature Cards ========== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gutter);
        }

        .feature-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            transition: box-shadow var(--transition), transform var(--transition);
        }

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

        .feature-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: var(--accent-soft);
            border-radius: 10px;
            margin-bottom: 14px;
            font-size: 22px;
        }

        .feature-card h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

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

        .feature-card a {
            display: inline-block;
            margin-top: 12px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
        }

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

        /* ========== Market Showcase ========== */
        .market-showcase {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .market-text h3 {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-primary);
        }

        .market-text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .market-text .market-points {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .market-points li {
            font-size: 13px;
            background: var(--accent-soft);
            color: var(--primary);
            padding: 6px 14px;
            border-radius: var(--radius-tag);
            font-weight: 500;
        }

        .market-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .market-image img {
            width: 100%;
            height: auto;
            border-radius: var(--radius-card);
            object-fit: cover;
        }

        /* ========== Onboarding Steps ========== */
        .onboarding-flow {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gutter);
        }

        .onboarding-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 26px 22px;
            text-align: center;
            transition: box-shadow var(--transition), transform var(--transition);
        }

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

        .onboarding-card .ob-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: 16px;
            margin-bottom: 14px;
        }

        .onboarding-card h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
        }

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

        /* ========== Trust Metrics ========== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gutter);
        }

        .metric-card {
            background: rgba(255,255,255,.06);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            transition: background var(--transition);
        }

        .metric-card:hover {
            background: rgba(255,255,255,.1);
        }

        .metric-value {
            font-family: var(--font-serif);
            font-size: 30px;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 6px;
            letter-spacing: 0.5px;
        }

        .metric-label {
            font-size: 13px;
            color: rgba(249,247,242,.75);
        }

        /* ========== Post Cards ========== */
        .post-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--gutter);
        }

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

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

        .post-card .post-thumb {
            height: 200px;
            overflow: hidden;
            background: var(--bg);
            flex-shrink: 0;
        }

        .post-card .post-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }

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

        .post-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--accent-soft);
            padding: 2px 12px;
            border-radius: var(--radius-tag);
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .post-card h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .post-card h3 a {
            color: inherit;
            transition: color var(--transition);
        }

        .post-card h3 a:hover {
            color: var(--primary);
        }

        .post-card .post-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
            flex-grow: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

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

        .empty-state {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-secondary);
            font-size: 15px;
            background: var(--card-bg);
            border: 1px dashed var(--border);
            border-radius: var(--radius-card);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color var(--transition);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }

        .faq-question:hover {
            background: var(--bg);
        }

        .faq-question .faq-icon {
            font-size: 20px;
            font-weight: 400;
            color: var(--accent);
            flex-shrink: 0;
            transition: transform var(--transition);
        }

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

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

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 22px 18px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== Trust & Official ========== */
        .trust-section {
            background: var(--dark-bg);
            color: var(--text-inverse);
            padding: var(--section-padding) 0;
            position: relative;
            overflow: hidden;
        }

        .trust-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/9c6f6b52d950c309.webp') center/cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }

        .trust-section .container {
            position: relative;
            z-index: 1;
        }

        .trust-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gutter);
        }

        .trust-card {
            background: rgba(255,255,255,.05);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            text-align: center;
            transition: background var(--transition);
        }

        .trust-card:hover {
            background: rgba(255,255,255,.09);
        }

        .trust-card .trust-icon {
            font-size: 36px;
            margin-bottom: 14px;
        }

        .trust-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-inverse);
        }

        .trust-card p {
            font-size: 14px;
            color: rgba(249,247,242,.7);
            line-height: 1.7;
        }

        /* ========== Version Timeline ========== */
        .timeline {
            max-width: 720px;
            margin: 0 auto;
            position: relative;
            padding-left: 32px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--border);
        }

        .timeline-item {
            position: relative;
            margin-bottom: 24px;
            padding-left: 20px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 8px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent);
            border: 2px solid var(--bg);
        }

        .timeline-item .version {
            font-weight: 700;
            font-size: 15px;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .timeline-item .version-date {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 6px;
        }

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

        /* ========== Support ========== */
        .support-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gutter);
        }

        .support-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 26px 22px;
            text-align: center;
            transition: box-shadow var(--transition), transform var(--transition);
        }

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

        .support-card .sup-icon {
            font-size: 30px;
            margin-bottom: 12px;
        }

        .support-card h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .support-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 14px;
        }

        .support-card .btn {
            font-size: 13px;
            padding: 8px 16px;
            min-height: 36px;
        }

        /* ========== Bottom CTA ========== */
        .bottom-cta {
            background: var(--dark-bg);
            color: var(--text-inverse);
            padding: 72px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .bottom-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/c883068f33a2bd5b.webp') center/cover no-repeat;
            opacity: 0.18;
            pointer-events: none;
        }

        .bottom-cta .container {
            position: relative;
            z-index: 1;
        }

        .bottom-cta h2 {
            font-family: var(--font-serif);
            font-size: 30px;
            line-height: 1.4;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .bottom-cta p {
            font-size: 16px;
            color: rgba(249,247,242,.8);
            margin-bottom: 26px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .bottom-cta .btn {
            font-size: 16px;
            padding: 15px 32px;
            min-height: 48px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--dark-bg);
            color: var(--text-inverse);
            padding: 48px 0 28px;
            border-top: 1px solid var(--border-dark);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand .brand {
            color: var(--text-inverse);
            margin-bottom: 14px;
        }

        .footer-brand p {
            font-size: 13px;
            color: rgba(249,247,242,.65);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
            color: var(--accent);
        }

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

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

        .footer-col ul li a {
            font-size: 13px;
            color: rgba(249,247,242,.7);
            transition: color var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 12px;
            color: rgba(249,247,242,.5);
        }

        .footer-bottom .footer-domain {
            color: rgba(249,247,242,.4);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            :root {
                --section-padding: 48px;
            }

            .hero .container {
                grid-template-columns: 1fr;
                gap: 36px;
                text-align: center;
            }

            .hero-content .hero-sub {
                margin-left: auto;
                margin-right: auto;
            }

            .hero-actions {
                justify-content: center;
            }

            .hero-visual {
                justify-content: center;
            }

            .hero-phone-mock {
                width: 240px;
                height: 480px;
            }

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

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

            .category-matrix {
                grid-template-columns: 1fr;
            }

            .market-showcase {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

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

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

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

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

        @media (max-width: 768px) {
            :root {
                --section-padding: 40px;
                --nav-height: 56px;
            }

            .main-nav {
                display: none;
            }

            .nav-cta {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .hero {
                padding: 48px 0 40px;
            }

            .hero-content h1 {
                font-size: 26px;
                line-height: 1.4;
            }

            .hero-content .hero-sub {
                font-size: 14px;
            }

            .hero-phone-mock {
                width: 200px;
                height: 400px;
                border-radius: 24px;
                padding: 10px;
            }

            .hero-phone-mock .phone-screen {
                border-radius: 14px;
            }

            .hero-phone-mock .phone-notch {
                top: 10px;
                width: 90px;
                height: 18px;
            }

            .download-toolbar .container {
                flex-direction: column;
                align-items: flex-start;
            }

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

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

            .onboarding-flow {
                grid-template-columns: 1fr;
            }

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

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

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

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

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

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

            .section-header h2 {
                font-size: 22px;
            }

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

            .post-card .post-thumb {
                height: 160px;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 22px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: center;
            }

            .btn {
                width: 100%;
                max-width: 280px;
            }

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

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

            .timeline {
                padding-left: 24px;
            }

            .timeline-item::before {
                left: -20px;
            }

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

            .faq-answer-inner {
                padding: 0 16px 14px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0F3D2E;
            --primary-hover: #0A2D22;
            --accent: #C8A96A;
            --accent-soft: #F0E8D8;
            --danger: #C94F3D;
            --bg: #F7F5F0;
            --card-bg: #FFFFFF;
            --dark-bg: #0E2A24;
            --text-primary: #1A1A1A;
            --text-secondary: #5C645F;
            --text-inverse: #F9F7F2;
            --border: #E5E1D8;
            --border-dark: rgba(255,255,255,.12);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-tag: 999px;
            --radius-img: 12px;
            --shadow-card: 0 8px 20px rgba(15,61,46,.08);
            --shadow-card-hover: 0 12px 28px rgba(15,61,46,.14);
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STSong', 'SimSun', serif;
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --section-padding: 64px;
            --container-max: 1200px;
            --gutter: 24px;
            --nav-height: 64px;
            --transition: 0.22s ease;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

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

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255,255,255,.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

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

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 18px;
            color: var(--primary);
            letter-spacing: 0.5px;
            line-height: 1.3;
            white-space: nowrap;
        }

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

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--accent);
            border-radius: 8px;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .brand-text .brand-main {
            font-size: 17px;
            font-weight: 700;
        }

        .brand-text .brand-sub {
            font-size: 11px;
            font-weight: 400;
            color: var(--text-secondary);
            letter-spacing: 1px;
        }

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

        .main-nav a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            padding: 8px 14px;
            border-radius: 8px;
            transition: background var(--transition), color var(--transition);
            white-space: nowrap;
        }

        .main-nav a:hover {
            background: var(--bg);
            color: var(--primary);
        }

        .main-nav a.active {
            background: var(--primary);
            color: var(--text-inverse);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: var(--text-inverse);
            font-size: 14px;
            font-weight: 600;
            padding: 8px 18px;
            border-radius: var(--radius-btn);
            transition: background var(--transition), transform var(--transition);
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: var(--primary-hover);
            transform: translateY(-1px);
            color: var(--text-inverse);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 6px;
            background: transparent;
        }

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

        .mobile-nav {
            display: none;
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 12px 20px;
            position: sticky;
            top: var(--nav-height);
            z-index: 999;
        }

        .mobile-nav a {
            display: block;
            padding: 10px 12px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: 8px;
            transition: background var(--transition), color var(--transition);
        }

        .mobile-nav a:hover {
            background: var(--bg);
            color: var(--primary);
        }

        .mobile-nav a.active {
            background: var(--primary);
            color: var(--text-inverse);
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }

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

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

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

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

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

        .section-dark {
            background: var(--dark-bg);
            color: var(--text-inverse);
        }

        .section-dark h1,
        .section-dark h2,
        .section-dark h3 {
            color: var(--text-inverse);
        }

        .section-dark .text-muted-on-dark {
            color: rgba(249,247,242,.72);
        }

        /* Category Hero */
        .category-hero {
            padding: 48px 0 40px;
            background: var(--bg);
        }

        .category-hero .container {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .category-hero-content {
            flex: 1 1 55%;
        }

        .category-hero-image {
            flex: 1 1 45%;
            max-height: 340px;
            overflow: hidden;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
        }

        .category-hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-card);
        }

        .category-hero h1 {
            font-family: var(--font-serif);
            font-size: 34px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .category-hero .lead {
            font-size: 18px;
            color: var(--text-secondary);
            margin-bottom: 24px;
            max-width: 560px;
        }

        .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            cursor: pointer;
            text-decoration: none;
            min-height: 44px;
        }

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

        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: var(--text-inverse);
            transform: translateY(-1px);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--accent);
        }

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

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

        .btn-light:hover {
            background: var(--accent-soft);
            border-color: var(--accent);
            color: var(--primary);
            transform: translateY(-1px);
        }

        .btn-outline-light {
            background: transparent;
            color: var(--text-inverse);
            border: 1px solid rgba(255,255,255,.4);
        }

        .btn-outline-light:hover {
            background: rgba(255,255,255,.1);
            border-color: var(--accent);
            color: var(--text-inverse);
            transform: translateY(-1px);
        }

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

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

        .card-accent-top {
            border-top: 3px solid var(--accent);
        }

        .card h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .card p,
        .card li {
            font-size: 15px;
            color: var(--text-secondary);
        }

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

        .card ul li {
            padding: 6px 0 6px 20px;
            position: relative;
        }

        .card ul li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: 600;
        }

        /* Grid */
        .grid {
            display: grid;
            gap: var(--gutter);
        }

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

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

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

        /* Steps */
        .step-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gutter);
            counter-reset: step;
        }

        .step-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            position: relative;
            box-shadow: var(--shadow-card);
        }

        .step-item::before {
            counter-increment: step;
            content: counter(step);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: var(--accent);
            border-radius: 8px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .step-item h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-secondary);
        }

        /* Info bar */
        .info-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
            background: var(--accent-soft);
            border: 1px solid var(--accent);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            margin-bottom: 20px;
        }

        .info-bar-text {
            flex: 1;
            font-weight: 500;
            color: var(--primary);
        }

        .info-bar .btn {
            flex-shrink: 0;
        }

        /* Badge */
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-tag);
            font-size: 12px;
            font-weight: 600;
            background: var(--accent-soft);
            color: var(--primary);
            margin-right: 8px;
            margin-bottom: 8px;
        }

        .badge-official {
            background: var(--primary);
            color: var(--text-inverse);
        }

        .badge-safe {
            background: #E5F3EC;
            color: var(--primary);
        }

        /* FAQ */
        .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            background: var(--card-bg);
            margin-bottom: 12px;
            overflow: hidden;
        }

        .accordion-header {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            background: var(--card-bg);
            text-align: left;
            cursor: pointer;
            transition: background var(--transition);
            border: none;
        }

        .accordion-header:hover {
            background: var(--accent-soft);
        }

        .accordion-header .icon {
            font-size: 22px;
            color: var(--accent);
            transition: transform var(--transition);
            flex-shrink: 0;
            margin-left: 12px;
        }

        .accordion-header[aria-expanded="true"] .icon {
            transform: rotate(45deg);
        }

        .accordion-content {
            padding: 0 20px 18px;
            color: var(--text-secondary);
            font-size: 15px;
            display: none;
        }

        .accordion-content.open {
            display: block;
        }

        /* CTA Dark */
        .cta-dark {
            background: var(--dark-bg);
            color: var(--text-inverse);
            border-radius: 0;
            padding: 48px 20px;
            text-align: center;
        }

        .cta-dark h2 {
            font-family: var(--font-serif);
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-inverse);
        }

        .cta-dark p {
            font-size: 16px;
            color: rgba(249,247,242,.72);
            max-width: 640px;
            margin: 0 auto 24px;
        }

        .cta-dark .btn-group {
            justify-content: center;
        }

        /* Footer */
        .site-footer {
            background: var(--dark-bg);
            color: var(--text-inverse);
            padding: 48px 0 24px;
            font-size: 14px;
        }

        .site-footer .brand {
            color: var(--text-inverse);
        }

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

        .site-footer .brand .brand-sub {
            color: rgba(249,247,242,.6);
        }

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

        .footer-brand p {
            color: rgba(249,247,242,.72);
            margin-top: 12px;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 14px;
            color: var(--text-inverse);
        }

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

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

        .footer-col a {
            color: rgba(249,247,242,.72);
            transition: color var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid rgba(255,255,255,.12);
            padding-top: 20px;
            color: rgba(249,247,242,.6);
            font-size: 13px;
        }

        .footer-domain {
            color: rgba(249,247,242,.4);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 4px;
            }
            .main-nav a {
                padding: 8px 10px;
                font-size: 13px;
            }
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-list {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-nav {
                display: none;
            }
            .mobile-nav.open {
                display: block;
            }
            .category-hero .container {
                flex-direction: column;
                align-items: stretch;
            }
            .category-hero-content,
            .category-hero-image {
                flex: 1 1 100%;
            }
            .category-hero-image {
                max-height: 220px;
            }
            .grid-2,
            .grid-3 {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section {
                padding: 48px 0;
            }
            .category-hero {
                padding: 32px 0;
            }
            h1 {
                font-size: 28px;
            }
            h2 {
                font-size: 24px;
            }
        }

        @media (max-width: 520px) {
            .grid-4,
            .step-list {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .btn-group {
                flex-direction: column;
            }
            .btn {
                width: 100%;
            }
            .info-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .info-bar .btn {
                width: 100%;
            }
            h1 {
                font-size: 24px;
            }
            h2 {
                font-size: 20px;
            }
        }

/* roulang page: article */
:root {
            --primary: #0F3D2E;
            --primary-hover: #0A2D22;
            --accent: #C8A96A;
            --accent-soft: #F0E8D8;
            --danger: #C94F3D;
            --bg: #F7F5F0;
            --card-bg: #FFFFFF;
            --dark-bg: #0E2A24;
            --text-primary: #1A1A1A;
            --text-secondary: #5C645F;
            --text-inverse: #F9F7F2;
            --border: #E5E1D8;
            --border-dark: rgba(255,255,255,.12);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-tag: 999px;
            --radius-img: 12px;
            --shadow-card: 0 8px 20px rgba(15,61,46,.08);
            --shadow-card-hover: 0 12px 28px rgba(15,61,46,.14);
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STSong', 'SimSun', serif;
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --section-padding: 64px;
            --container-max: 1200px;
            --gutter: 24px;
            --nav-height: 64px;
            --transition: 0.22s ease;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 14px;
        }

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

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255,255,255,.94);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

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

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 18px;
            color: var(--primary);
            letter-spacing: 0.5px;
            line-height: 1.3;
            white-space: nowrap;
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--accent);
            border-radius: 8px;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .brand-text .brand-main {
            font-size: 17px;
            font-weight: 700;
        }

        .brand-text .brand-sub {
            font-size: 11px;
            font-weight: 400;
            color: var(--text-secondary);
            letter-spacing: 1px;
        }

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

        .main-nav a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            padding: 8px 14px;
            border-radius: 8px;
            transition: background var(--transition), color var(--transition);
            white-space: nowrap;
        }

        .main-nav a:hover {
            background: var(--bg);
            color: var(--primary);
        }

        .main-nav a.active {
            background: var(--primary);
            color: var(--text-inverse);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: var(--text-inverse);
            font-size: 14px;
            font-weight: 600;
            padding: 8px 18px;
            border-radius: var(--radius-btn);
            transition: background var(--transition), transform var(--transition);
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: var(--primary-hover);
            color: var(--text-inverse);
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 6px;
        }

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

        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: var(--card-bg);
            border-bottom: 1px solid var(--border);
            padding: 12px 20px 20px;
            z-index: 999;
            box-shadow: 0 16px 28px rgba(15,61,46,.12);
        }

        .mobile-nav.open {
            display: block;
        }

        .mobile-nav a {
            display: block;
            padding: 12px 4px;
            border-bottom: 1px solid var(--border);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
        }

        .mobile-nav a:last-child {
            border-bottom: none;
        }

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

        /* Main layout */
        main {
            min-height: 60vh;
        }

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

        .section-soft {
            background: var(--card-bg);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        /* Breadcrumb */
        .breadcrumb-wrap {
            padding: 20px 0;
            background: var(--bg);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
        }

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

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

        .breadcrumb .separator {
            color: var(--text-secondary);
            opacity: 0.6;
        }

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

        /* Article cover */
        .article-cover {
            margin-bottom: 32px;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            background: var(--card-bg);
            border: 1px solid var(--border);
        }

        .article-cover img {
            width: 100%;
            height: auto;
            border-radius: 0;
        }

        /* Article layout */
        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 320px;
            gap: 40px;
            align-items: start;
        }

        .article-main {
            min-width: 0;
        }

        .article-header {
            margin-bottom: 32px;
        }

        .article-header h1 {
            font-family: var(--font-serif);
            font-size: 34px;
            line-height: 1.4;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.4px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 18px;
            align-items: center;
            font-size: 14px;
            color: var(--text-secondary);
            padding-bottom: 18px;
            border-bottom: 1px solid var(--border);
        }

        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta .badge {
            background: var(--accent-soft);
            color: var(--primary);
            border: 1px solid var(--accent);
            border-radius: var(--radius-tag);
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            white-space: nowrap;
        }

        /* Article body */
        .article-body {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-primary);
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            box-shadow: var(--shadow-card);
            margin-bottom: 24px;
        }

        .article-body h2 {
            font-family: var(--font-serif);
            font-size: 26px;
            line-height: 1.4;
            font-weight: 700;
            margin-top: 1.8em;
            margin-bottom: 0.7em;
            color: var(--primary);
        }

        .article-body h3 {
            font-size: 20px;
            line-height: 1.5;
            font-weight: 600;
            margin-top: 1.5em;
            margin-bottom: 0.6em;
            color: var(--text-primary);
        }

        .article-body p {
            margin-bottom: 1.2em;
            color: var(--text-primary);
        }

        .article-body ul,
        .article-body ol {
            padding-left: 1.5em;
            margin-bottom: 1.2em;
        }

        .article-body ul li,
        .article-body ol li {
            margin-bottom: 0.4em;
        }

        .article-body blockquote {
            background: var(--bg);
            border-left: 4px solid var(--accent);
            padding: 16px 20px;
            margin: 1.5em 0;
            border-radius: 0 12px 12px 0;
            color: var(--text-secondary);
            font-size: 15px;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5em 0;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(15,61,46,.06);
        }

        .article-body table th,
        .article-body table td {
            border: 1px solid var(--border);
            padding: 12px 16px;
            text-align: left;
            font-size: 14px;
        }

        .article-body table th {
            background: var(--primary);
            color: var(--text-inverse);
            font-weight: 600;
        }

        .article-body table td {
            background: var(--card-bg);
        }

        .article-body img {
            margin: 1.5em 0;
            border-radius: var(--radius-img);
            box-shadow: var(--shadow-card);
        }

        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body a:hover {
            color: var(--primary-hover);
        }

        /* Download CTA card inside article */
        .article-cta-card {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            margin: 32px 0 24px;
            background: var(--dark-bg);
            background-image: linear-gradient(135deg, rgba(15,61,46,.96), rgba(14,42,36,.92));
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-dark);
        }

        .article-cta-card .cta-content {
            position: relative;
            z-index: 2;
            padding: 32px 32px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .article-cta-card .cta-bg {
            position: absolute;
            right: 0;
            top: 0;
            width: 55%;
            height: 100%;
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 1;
        }

        .article-cta-card .eyebrow {
            display: inline-block;
            background: var(--accent);
            color: var(--dark-bg);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-tag);
            letter-spacing: 0.5px;
            align-self: flex-start;
        }

        .article-cta-card h2 {
            font-family: var(--font-serif);
            font-size: 26px;
            font-weight: 700;
            color: var(--text-inverse);
            line-height: 1.4;
            margin: 0;
        }

        .article-cta-card p {
            color: rgba(249,247,242,.82);
            font-size: 15px;
            line-height: 1.7;
            max-width: 520px;
            margin: 0;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 4px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 0 22px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
        }

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

        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: var(--text-inverse);
            transform: translateY(-2px);
        }

        .btn-outline-light {
            background: transparent;
            color: var(--text-inverse);
            border: 1px solid rgba(249,247,242,.5);
        }

        .btn-outline-light:hover {
            background: rgba(249,247,242,.1);
            border-color: var(--accent);
            color: var(--accent);
        }

        .btn-outline {
            background: var(--card-bg);
            color: var(--primary);
            border: 1px solid var(--accent);
        }

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

        /* Article bottom */
        .article-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 24px 0 12px;
            border-top: 1px solid var(--border);
            margin-top: 8px;
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag {
            display: inline-block;
            background: var(--card-bg);
            color: var(--text-secondary);
            border: 1px solid var(--border);
            border-radius: var(--radius-tag);
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 500;
            transition: all var(--transition);
        }

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

        .back-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        /* Related articles */
        .related-articles {
            margin-top: 32px;
        }

        .related-articles .section-title {
            font-family: var(--font-serif);
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 20px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: box-shadow var(--transition), transform var(--transition);
            box-shadow: var(--shadow-card);
        }

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

        .related-card a {
            display: block;
            color: inherit;
        }

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

        .related-card .related-body .badge {
            display: inline-block;
            background: var(--accent-soft);
            color: var(--primary);
            border-radius: var(--radius-tag);
            padding: 3px 10px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .related-card h3 {
            font-size: 16px;
            line-height: 1.5;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0 0 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card time {
            font-size: 12px;
            color: var(--text-secondary);
            opacity: 0.75;
        }

        /* Sidebar */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: calc(var(--nav-height) + 20px);
        }

        .sidebar-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 22px;
            box-shadow: var(--shadow-card);
        }

        .sidebar-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            font-family: var(--font-serif);
        }

        .sidebar-download {
            position: relative;
            overflow: hidden;
            background: var(--dark-bg);
            background-image: linear-gradient(135deg, rgba(15,61,46,.97), rgba(14,42,36,.93));
            color: var(--text-inverse);
        }

        .sidebar-download .sidebar-bg {
            position: absolute;
            right: 0;
            top: 0;
            width: 60%;
            height: 100%;
            background-size: cover;
            background-position: center;
            opacity: 0.2;
        }

        .sidebar-download .sidebar-content {
            position: relative;
            z-index: 2;
        }

        .sidebar-download h3 {
            color: var(--text-inverse);
        }

        .sidebar-download p {
            color: rgba(249,247,242,.82);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .sidebar-download .btn {
            width: 100%;
        }

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

        .sidebar-list li {
            border-bottom: 1px solid var(--border);
            padding: 10px 0;
        }

        .sidebar-list li:last-child {
            border-bottom: none;
        }

        .sidebar-list a {
            font-size: 14px;
            color: var(--text-primary);
            line-height: 1.5;
            display: block;
        }

        .sidebar-list a:hover {
            color: var(--primary);
        }

        .risk-notice {
            background: #FDF8F6;
            border: 1px solid rgba(201,79,61,.25);
            border-left: 4px solid var(--danger);
            border-radius: 12px;
            padding: 16px 18px;
            color: #7C4A42;
            font-size: 13px;
            line-height: 1.7;
        }

        .risk-notice strong {
            color: var(--danger);
            font-weight: 700;
        }

        /* Footer */
        .site-footer {
            background: var(--dark-bg);
            color: var(--text-inverse);
            padding: 56px 0 24px;
            margin-top: 64px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border-dark);
        }

        .footer-brand .brand {
            color: var(--text-inverse);
        }

        .footer-brand .brand-icon {
            background: var(--accent);
            color: var(--dark-bg);
        }

        .footer-brand .brand-sub {
            color: rgba(249,247,242,.65);
        }

        .footer-brand p {
            color: rgba(249,247,242,.7);
            font-size: 14px;
            line-height: 1.7;
            margin-top: 16px;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

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

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

        .footer-col ul li a {
            color: rgba(249,247,242,.72);
            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: 10px 20px;
            padding-top: 24px;
            font-size: 12px;
            color: rgba(249,247,242,.55);
        }

        .footer-domain {
            letter-spacing: 0.5px;
            opacity: 0.75;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            :root {
                --section-padding: 48px;
            }
            .article-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .article-sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }
            .article-sidebar .sidebar-card {
                flex: 1 1 280px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-padding: 40px;
                --nav-height: 56px;
            }
            .main-nav,
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-nav {
                display: none;
            }
            .mobile-nav.open {
                display: block;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .article-header h1 {
                font-size: 28px;
            }
            .article-body {
                padding: 24px 20px;
            }
            .article-body h2 {
                font-size: 22px;
            }
            .article-cta-card .cta-content {
                padding: 24px 20px;
            }
            .article-cta-card h2 {
                font-size: 22px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .article-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .article-cover {
                border-radius: 12px;
            }
            .article-layout {
                gap: 24px;
            }
            .article-header h1 {
                font-size: 24px;
            }
            .article-meta {
                font-size: 13px;
            }
            .btn {
                width: 100%;
            }
            .cta-actions {
                flex-direction: column;
                width: 100%;
            }
        }

/* roulang page: category3 */
:root {
    --primary: #0F3D2E;
    --primary-hover: #0A2D22;
    --accent: #C8A96A;
    --accent-soft: #F0E8D8;
    --danger: #C94F3D;
    --bg: #F7F5F0;
    --card-bg: #FFFFFF;
    --dark-bg: #0E2A24;
    --text-primary: #1A1A1A;
    --text-secondary: #5C645F;
    --text-inverse: #F9F7F2;
    --border: #E5E1D8;
    --border-dark: rgba(255,255,255,.12);
    --radius-card: 16px;
    --radius-btn: 10px;
    --radius-tag: 999px;
    --radius-img: 12px;
    --shadow-card: 0 8px 20px rgba(15,61,46,.08);
    --shadow-card-hover: 0 12px 28px rgba(15,61,46,.14);
    --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STSong', 'SimSun', serif;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    --section-padding: 64px;
    --container-max: 1200px;
    --gutter: 24px;
    --nav-height: 64px;
    --transition: 0.22s ease;
}

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

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.75;
    color: var(--text-primary);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

a:focus-visible, button:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    border-radius: 4px;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, select, textarea {
    font-family: inherit;
    font-size: 14px;
}

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

/* ========== Header & Navigation ========== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--nav-height);
    background: rgba(255,255,255,.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

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

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 18px;
    color: var(--primary);
    letter-spacing: 0.5px;
    line-height: 1.3;
    white-space: nowrap;
}

.brand-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--primary);
    color: var(--accent);
    border-radius: 8px;
    font-size: 18px;
    font-weight: 700;
    flex-shrink: 0;
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.brand-text .brand-main {
    font-size: 17px;
    font-weight: 700;
}

.brand-text .brand-sub {
    font-size: 11px;
    font-weight: 400;
    color: var(--text-secondary);
    letter-spacing: 1px;
}

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

.main-nav a {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    padding: 8px 14px;
    border-radius: 8px;
    transition: background var(--transition), color var(--transition);
    white-space: nowrap;
}

.main-nav a:hover {
    background: var(--bg);
    color: var(--primary);
}

.main-nav a.active {
    background: var(--primary);
    color: var(--text-inverse);
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--primary);
    color: var(--text-inverse);
    font-size: 14px;
    font-weight: 600;
    padding: 8px 18px;
    border-radius: var(--radius-btn);
    transition: background var(--transition), transform var(--transition);
    white-space: nowrap;
}

.nav-cta:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    color: var(--text-inverse);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    border-radius: 6px;
}

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

/* ========== Breadcrumb ========== */
.breadcrumb-bar {
    padding: 18px 0 0;
    background: var(--bg);
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
    flex-wrap: wrap;
}

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

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

.breadcrumb .separator {
    color: var(--border);
}

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

/* ========== Category Hero ========== */
.category-hero {
    padding: 40px 0 48px;
    background: var(--bg);
}

.category-hero .hero-grid {
    display: flex;
    align-items: center;
    gap: 48px;
}

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

.category-hero .hero-title {
    font-family: var(--font-serif);
    font-size: 34px;
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
    margin: 12px 0 16px;
}

.category-hero .hero-desc {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 24px;
    max-width: 640px;
}

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

.category-hero .hero-image {
    flex: 0 0 380px;
    max-width: 380px;
}

.category-hero .hero-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
}

/* ========== Buttons ========== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--primary);
    color: var(--text-inverse);
    font-size: 15px;
    font-weight: 600;
    padding: 12px 24px;
    border-radius: var(--radius-btn);
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
    line-height: 1.4;
}

.btn-primary:hover {
    background: var(--primary-hover);
    color: var(--text-inverse);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(15,61,46,.2);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: transparent;
    color: var(--primary);
    font-size: 15px;
    font-weight: 600;
    padding: 11px 22px;
    border: 1.5px solid var(--primary);
    border-radius: var(--radius-btn);
    transition: background var(--transition), color var(--transition), border-color var(--transition);
    line-height: 1.4;
}

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

.btn-accent {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--accent);
    color: var(--primary);
    font-size: 15px;
    font-weight: 600;
    padding: 12px 24px;
    border-radius: var(--radius-btn);
    transition: background var(--transition), transform var(--transition);
    line-height: 1.4;
}

.btn-accent:hover {
    background: #b8975f;
    color: var(--primary-hover);
    transform: translateY(-1px);
}

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

.section-alt {
    background: var(--card-bg);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.section-dark {
    background: var(--dark-bg);
    color: var(--text-inverse);
}

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

.section-title {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 700;
    line-height: 1.35;
    color: inherit;
    margin: 0 0 12px;
}

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

.section-dark .section-desc {
    color: rgba(249,247,242,.75);
}

/* ========== Step Cards ========== */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--gutter);
}

.step-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 28px 24px;
    position: relative;
    box-shadow: var(--shadow-card);
    transition: box-shadow var(--transition), transform var(--transition);
}

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

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: var(--accent);
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 700;
    border-radius: 10px;
    margin-bottom: 16px;
}

.step-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 10px;
    line-height: 1.4;
}

.step-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* ========== Checklist ========== */
.checklist-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--gutter);
}

.checklist-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 22px 24px;
    transition: box-shadow var(--transition);
}

.checklist-item:hover {
    box-shadow: var(--shadow-card);
}

.checklist-icon {
    flex-shrink: 0;
    width: 42px;
    height: 42px;
    background: var(--accent-soft);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.checklist-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 6px;
    line-height: 1.4;
}

.checklist-content p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* ========== Account Type Cards ========== */
.account-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gutter);
}

.account-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-top: 3px solid var(--accent);
    border-radius: var(--radius-card);
    padding: 28px 24px;
    box-shadow: var(--shadow-card);
    transition: box-shadow var(--transition), transform var(--transition);
}

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

.account-card .account-icon {
    font-size: 32px;
    margin-bottom: 14px;
}

.account-card h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 10px;
}

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

.account-card ul li {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    padding: 4px 0;
    position: relative;
    padding-left: 18px;
}

.account-card ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 12px;
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
}

/* ========== Service List ========== */
.service-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}

.service-item {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px 20px;
    transition: box-shadow var(--transition), border-color var(--transition);
}

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

.service-item .service-dot {
    flex-shrink: 0;
    width: 10px;
    height: 10px;
    background: var(--accent);
    border-radius: 50%;
}

.service-item span {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
}

/* ========== Security Cards ========== */
.security-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--gutter);
}

.security-card {
    text-align: center;
    padding: 24px 16px;
}

.security-card .security-icon {
    font-size: 36px;
    margin-bottom: 12px;
}

.security-card h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-inverse);
    margin: 0 0 8px;
}

.security-card p {
    font-size: 13px;
    color: rgba(249,247,242,.7);
    line-height: 1.6;
    margin: 0;
}

/* ========== FAQ ========== */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color var(--transition);
}

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

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 18px 24px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
    background: transparent;
    transition: background var(--transition);
    gap: 16px;
}

.faq-question:hover {
    background: var(--accent-soft);
}

.faq-question .faq-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--accent);
    font-weight: 700;
    transition: transform var(--transition);
}

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

.faq-answer {
    padding: 0 24px 18px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

/* ========== Bottom CTA ========== */
.cta-section {
    padding: 64px 0;
    background: var(--dark-bg);
    color: var(--text-inverse);
    text-align: center;
}

.cta-section .cta-inner {
    max-width: 720px;
    margin: 0 auto;
}

.cta-section h2 {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 700;
    line-height: 1.4;
    margin: 0 0 14px;
    color: var(--text-inverse);
}

.cta-section p {
    font-size: 16px;
    color: rgba(249,247,242,.75);
    line-height: 1.8;
    margin: 0 0 28px;
}

.cta-section .cta-actions {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
}

/* ========== Footer ========== */
.site-footer {
    background: var(--dark-bg);
    color: var(--text-inverse);
    padding: 56px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 36px;
    border-bottom: 1px solid var(--border-dark);
}

.footer-brand .brand {
    color: var(--text-inverse);
    margin-bottom: 14px;
}

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

.footer-brand .brand-sub {
    color: rgba(249,247,242,.6);
}

.footer-brand p {
    font-size: 14px;
    color: rgba(249,247,242,.7);
    line-height: 1.7;
    margin: 0;
}

.footer-col h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-inverse);
    margin: 0 0 16px;
}

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

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

.footer-col ul li a {
    font-size: 14px;
    color: rgba(249,247,242,.7);
    transition: color var(--transition);
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    padding: 20px 0;
    font-size: 13px;
    color: rgba(249,247,242,.5);
}

.footer-bottom .footer-domain {
    font-family: monospace;
    letter-spacing: 0.5px;
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
    :root {
        --section-padding: 48px;
    }
    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .security-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .account-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 28px;
    }
    .category-hero .hero-image {
        flex: 0 0 300px;
        max-width: 300px;
    }
    .category-hero .hero-image img {
        height: 260px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 40px;
        --nav-height: 56px;
    }
    .main-nav {
        display: none;
    }
    .nav-toggle {
        display: flex;
    }
    .nav-cta {
        display: none;
    }
    .category-hero .hero-grid {
        flex-direction: column;
        gap: 28px;
    }
    .category-hero .hero-image {
        flex: 0 0 auto;
        max-width: 100%;
        width: 100%;
    }
    .category-hero .hero-image img {
        height: 220px;
    }
    .category-hero .hero-title {
        font-size: 26px;
    }
    .checklist-grid {
        grid-template-columns: 1fr;
    }
    .service-list {
        grid-template-columns: 1fr;
    }
    .section-title {
        font-size: 24px;
    }
}

@media (max-width: 520px) {
    .steps-grid {
        grid-template-columns: 1fr;
    }
    .account-grid {
        grid-template-columns: 1fr;
    }
    .security-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }
    .category-hero .hero-title {
        font-size: 22px;
    }
    .category-hero .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    .category-hero .hero-actions .btn-primary,
    .category-hero .hero-actions .btn-outline {
        width: 100%;
    }
    .cta-section .cta-actions {
        flex-direction: column;
        width: 100%;
    }
    .cta-section .cta-actions .btn-primary,
    .cta-section .cta-actions .btn-outline {
        width: 100%;
    }
}

/* roulang page: category2 */
:root {
            --primary: #0F3D2E;
            --primary-hover: #0A2D22;
            --accent: #C8A96A;
            --accent-soft: #F0E8D8;
            --danger: #C94F3D;
            --bg: #F7F5F0;
            --card-bg: #FFFFFF;
            --dark-bg: #0E2A24;
            --text-primary: #1A1A1A;
            --text-secondary: #5C645F;
            --text-inverse: #F9F7F2;
            --border: #E5E1D8;
            --border-dark: rgba(255,255,255,.12);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-tag: 999px;
            --radius-img: 12px;
            --shadow-card: 0 8px 20px rgba(15,61,46,.08);
            --shadow-card-hover: 0 12px 28px rgba(15,61,46,.14);
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STSong', 'SimSun', serif;
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --section-padding: 64px;
            --container-max: 1200px;
            --gutter: 24px;
            --nav-height: 64px;
            --transition: 0.22s ease;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), background var(--transition), transform var(--transition), box-shadow var(--transition);
        }
        a:hover {
            color: var(--primary-hover);
        }
        a:focus-visible, button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
        }
        input, select, textarea {
            font-family: inherit;
            font-size: 14px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border);
            background: var(--card-bg);
            padding: 10px 14px;
            color: var(--text-primary);
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        input:focus, select:focus, textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(15,61,46,.1);
            outline: none;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .section {
            padding: var(--section-padding) 0;
        }
        .section-bg-white {
            background: var(--card-bg);
        }
        .section-bg-mist {
            background: var(--bg);
        }
        .section-bg-dark {
            background: var(--dark-bg);
        }
        /* ========== Header & Navigation ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255,255,255,.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 18px;
            color: var(--primary);
            letter-spacing: 0.5px;
            line-height: 1.3;
            white-space: nowrap;
        }
        .brand:hover {
            color: var(--primary-hover);
        }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--accent);
            border-radius: 8px;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .brand-text .brand-main {
            font-size: 17px;
            font-weight: 700;
        }
        .brand-text .brand-sub {
            font-size: 11px;
            font-weight: 400;
            color: var(--text-secondary);
            letter-spacing: 1px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            padding: 8px 14px;
            border-radius: 8px;
            transition: background var(--transition), color var(--transition);
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: var(--bg);
            color: var(--primary);
        }
        .main-nav a.active {
            background: var(--primary);
            color: var(--text-inverse);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: var(--text-inverse);
            font-size: 14px;
            font-weight: 600;
            padding: 8px 18px;
            border-radius: var(--radius-btn);
            transition: background var(--transition), transform var(--transition), color var(--transition);
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: var(--primary-hover);
            color: var(--text-inverse);
            transform: translateY(-1px);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 6px;
            background: none;
            cursor: pointer;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            z-index: 999;
            background: var(--card-bg);
            border-bottom: 1px solid var(--border);
            padding: 16px 20px;
            flex-direction: column;
            gap: 6px;
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            padding: 10px 14px;
            border-radius: 8px;
        }
        .mobile-nav a:hover {
            background: var(--bg);
        }
        .mobile-nav a.active {
            background: var(--primary);
            color: var(--text-inverse);
        }
        .mobile-nav .nav-cta {
            justify-content: center;
            margin-top: 6px;
        }
        /* ========== Breadcrumb ========== */
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: #B0A99B;
            font-weight: 400;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }
        /* ========== Category Hero ========== */
        .category-hero {
            position: relative;
            padding: 56px 0 48px;
            background: linear-gradient(135deg, #0F3D2E 0%, #0E2A24 60%, #0A2D22 100%);
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/d5ded28a3c2b9e31.webp') center/cover no-repeat;
            opacity: 0.14;
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
        }
        .category-hero .breadcrumb {
            color: rgba(249,247,242,.7);
            margin-bottom: 16px;
        }
        .category-hero .breadcrumb a {
            color: rgba(249,247,242,.7);
        }
        .category-hero .breadcrumb a:hover {
            color: var(--accent);
        }
        .category-hero .breadcrumb .current {
            color: var(--accent);
        }
        .category-hero .breadcrumb .sep {
            color: rgba(249,247,242,.4);
        }
        .category-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(200,169,106,.16);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-tag);
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .category-hero h1 {
            font-family: var(--font-serif);
            font-size: 34px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-inverse);
            margin: 0 0 14px;
            max-width: 780px;
        }
        .category-hero p {
            font-size: 16px;
            line-height: 1.9;
            color: rgba(249,247,242,.78);
            margin: 0 0 24px;
            max-width: 720px;
        }
        .category-hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            transition: background var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            line-height: 1.4;
            min-height: 44px;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--accent);
            color: #1A1A1A;
        }
        .btn-primary:hover {
            background: #D9BC7E;
            color: #1A1A1A;
            transform: translateY(-1px);
            box-shadow: 0 8px 18px rgba(200,169,106,.3);
        }
        .btn-outline-light {
            background: transparent;
            color: var(--text-inverse);
            border: 1px solid rgba(249,247,242,.4);
        }
        .btn-outline-light:hover {
            background: rgba(249,247,242,.1);
            border-color: rgba(249,247,242,.7);
            color: var(--text-inverse);
            transform: translateY(-1px);
        }
        .btn-secondary {
            background: var(--card-bg);
            color: var(--primary);
            border: 1px solid var(--accent);
        }
        .btn-secondary:hover {
            background: var(--accent-soft);
            color: var(--primary-hover);
            border-color: var(--accent);
            transform: translateY(-1px);
        }
        .btn-dark {
            background: var(--primary);
            color: var(--text-inverse);
        }
        .btn-dark:hover {
            background: var(--primary-hover);
            color: var(--text-inverse);
            transform: translateY(-1px);
        }
        /* ========== Anchor Nav ========== */
        .anchor-nav {
            position: sticky;
            top: var(--nav-height);
            z-index: 900;
            background: var(--card-bg);
            border-bottom: 1px solid var(--border);
            padding: 10px 0;
        }
        .anchor-nav .container {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
        }
        .anchor-nav a {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 14px;
            border-radius: var(--radius-tag);
            border: 1px solid var(--border);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .anchor-nav a:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: var(--bg);
        }
        /* ========== Cards / Grids ========== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gutter);
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--gutter);
        }
        .feature-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-top: 3px solid var(--accent);
            border-radius: var(--radius-card);
            padding: 26px 24px;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .feature-card .feature-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            background: var(--accent-soft);
            color: var(--primary);
            border-radius: 10px;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .feature-card h3 {
            font-family: var(--font-serif);
            font-size: 20px;
            line-height: 1.4;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 10px;
        }
        .feature-card p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin: 0 0 12px;
        }
        .feature-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .feature-card ul li {
            position: relative;
            padding-left: 18px;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 5px;
        }
        .feature-card ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 11px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }
        .market-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 26px 24px;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .market-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .market-card .market-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: var(--primary);
            color: var(--accent);
            border-radius: 10px;
            font-size: 18px;
            font-weight: 700;
        }
        .market-card h3 {
            font-family: var(--font-serif);
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0;
        }
        .market-card p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin: 0;
        }
        .security-item {
            text-align: center;
            padding: 20px 16px;
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-card);
            background: rgba(255,255,255,.04);
            transition: background var(--transition), border-color var(--transition);
        }
        .security-item:hover {
            background: rgba(255,255,255,.07);
            border-color: var(--accent);
        }
        .security-value {
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            font-variant-numeric: tabular-nums;
            margin-bottom: 6px;
            font-family: var(--font-serif);
        }
        .security-label {
            font-size: 14px;
            color: rgba(249,247,242,.7);
            font-weight: 500;
        }
        .learn-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition);
            display: flex;
            flex-direction: column;
        }
        .learn-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .learn-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: 0;
        }
        .learn-card .learn-body {
            padding: 20px 22px 22px;
        }
        .learn-card h3 {
            font-family: var(--font-serif);
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 8px;
        }
        .learn-card p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin: 0;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 500;
            border-radius: var(--radius-tag);
            letter-spacing: 0.5px;
        }
        .tag-green {
            background: rgba(15,61,46,.08);
            color: var(--primary);
        }
        .tag-gold {
            background: var(--accent-soft);
            color: #8B6F3A;
        }
        .tag-red {
            background: rgba(201,79,61,.1);
            color: var(--danger);
        }
        /* ========== News List ========== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--gutter);
        }
        .news-card {
            display: flex;
            flex-direction: column;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px 22px;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .news-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            color: var(--text-primary);
        }
        .news-card .news-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
            margin-bottom: 10px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .news-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 8px;
            line-height: 1.5;
            font-family: var(--font-serif);
        }
        .news-card p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin: 0;
        }
        .empty-state {
            text-align: center;
            padding: 32px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            background: var(--card-bg);
            border: 1px dashed var(--border);
            border-radius: var(--radius-card);
        }
        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: 12px;
            background: var(--card-bg);
            overflow: hidden;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(15,61,46,.25);
            box-shadow: 0 4px 12px rgba(15,61,46,.06);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            background: transparent;
            cursor: pointer;
            transition: color var(--transition), background var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
            background: rgba(15,61,46,.03);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent-soft);
            color: var(--primary);
            font-weight: 700;
            font-size: 16px;
            transition: transform var(--transition), background var(--transition), color var(--transition);
        }
        .faq-question[aria-expanded="true"] .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: var(--text-inverse);
        }
        .faq-answer {
            display: none;
            padding: 0 20px 18px;
            font-size: 14px;
            line-height: 1.85;
            color: var(--text-secondary);
            border-top: 1px solid var(--border);
            padding-top: 14px;
            margin: 0 20px 18px;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        /* ========== CTA ========== */
        .cta-section {
            background: var(--dark-bg);
            position: relative;
            overflow: hidden;
            padding: 56px 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/9523244196090996.webp') center/cover no-repeat;
            opacity: 0.1;
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .cta-section h2 {
            font-family: var(--font-serif);
            font-size: 28px;
            font-weight: 700;
            color: var(--text-inverse);
            margin: 0 0 14px;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(249,247,242,.7);
            margin: 0 auto 24px;
            max-width: 560px;
            line-height: 1.8;
        }
        .cta-section .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }
        .cta-note {
            font-size: 13px;
            color: rgba(249,247,242,.5);
            margin-top: 16px;
        }
        /* ========== Footer ========== */
        .site-footer {
            background: var(--dark-bg);
            color: rgba(249,247,242,.7);
            padding: 48px 0 24px;
            font-size: 14px;
        }
        .site-footer .container {
            max-width: var(--container-max);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .brand {
            color: var(--text-inverse);
            margin-bottom: 14px;
        }
        .footer-brand .brand:hover {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(249,247,242,.6);
            margin: 0;
            max-width: 320px;
        }
        .footer-col h4 {
            font-family: var(--font-serif);
            font-size: 15px;
            font-weight: 600;
            color: var(--text-inverse);
            margin: 0 0 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(249,247,242,.6);
            font-size: 14px;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid rgba(255,255,255,.1);
            padding-top: 20px;
            font-size: 13px;
            color: rgba(249,247,242,.5);
        }
        .footer-domain {
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.5px;
        }
        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            :root {
                --section-padding: 48px;
                --gutter: 20px;
            }
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .category-hero h1 {
                font-size: 30px;
            }
            .cta-section h2 {
                font-size: 24px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-padding: 40px;
                --nav-height: 56px;
                --gutter: 16px;
            }
            .main-nav {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-nav {
                display: none;
            }
            .mobile-nav.open {
                display: flex;
            }
            .grid-3, .grid-2, .news-grid {
                grid-template-columns: 1fr;
            }
            .category-hero {
                padding: 40px 0 36px;
            }
            .category-hero h1 {
                font-size: 26px;
                line-height: 1.4;
            }
            .category-hero p {
                font-size: 15px;
            }
            .anchor-nav .container {
                flex-wrap: nowrap;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                gap: 6px;
                padding-bottom: 4px;
            }
            .anchor-nav a {
                font-size: 12px;
                padding: 5px 12px;
                flex-shrink: 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .btn {
                font-size: 14px;
                padding: 10px 20px;
                min-height: 40px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-answer {
                margin: 0 16px 14px;
                padding: 12px 0 0;
            }
        }
        @media (max-width: 480px) {
            .grid-3, .grid-2, .news-grid {
                grid-template-columns: 1fr;
            }
            .category-hero h1 {
                font-size: 22px;
            }
            .cta-section h2 {
                font-size: 20px;
            }
            .feature-card, .market-card, .learn-card, .news-card {
                padding: 20px 16px;
            }
            .security-item {
                padding: 16px 12px;
            }
            .security-value {
                font-size: 24px;
            }
        }