/* roulang page: index */
:root {
        --bg: #0b0e14;
        --bg-deep: #070a0f;
        --bg-card: #121620;
        --bg-card-hover: #181d2a;
        --bg-input: #0d1018;
        --primary: #e0b384;
        --primary-hover: #c9986a;
        --primary-pale: rgba(224, 179, 132, .12);
        --secondary: #b0644c;
        --secondary-hover: #99503a;
        --text: #ece4d8;
        --text-muted: #7c828e;
        --text-weak: #565b66;
        --border: #1e2430;
        --border-light: #2c3342;
        --success: #7cb882;
        --radius-sm: 4px;
        --radius-md: 10px;
        --radius-lg: 16px;
        --radius-xl: 24px;
        --shadow-sm: 0 2px 10px rgba(0, 0, 0, .3);
        --shadow-md: 0 10px 30px rgba(0, 0, 0, .4);
        --shadow-lg: 0 20px 60px rgba(0, 0, 0, .5);
        --space-1: 4px;
        --space-2: 8px;
        --space-3: 16px;
        --space-4: 24px;
        --space-5: 32px;
        --space-6: 48px;
        --space-7: 72px;
        --space-8: 100px;
        --sidebar-w: 264px;
        --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        --font-serif: Georgia, "Noto Serif SC", "Songti SC", serif;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: var(--font-sans);
        background: var(--bg);
        color: var(--text);
        line-height: 1.7;
        font-size: 16px;
        -webkit-font-smoothing: antialiased;
    }

    a {
        color: inherit;
        text-decoration: none;
    }
    a:focus-visible {
        outline: 2px solid var(--primary);
        outline-offset: 2px;
        border-radius: var(--radius-sm);
    }

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

    button {
        font-family: inherit;
        border: none;
        background: none;
        color: inherit;
        cursor: pointer;
    }
    button:focus-visible {
        outline: 2px solid var(--primary);
        outline-offset: 2px;
    }

    input,
    textarea {
        font-family: inherit;
    }

    .app-shell {
        display: flex;
        min-height: 100vh;
    }

    /* ===== Sidebar ===== */
    .sidebar {
        width: var(--sidebar-w);
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        background: var(--bg-deep);
        border-right: 1px solid var(--border);
        display: flex;
        flex-direction: column;
        padding: 28px 24px 20px;
        z-index: 100;
        transition: transform .35s cubic-bezier(.4, 0, .2, 1), box-shadow .3s ease;
    }

    .sidebar-brand {
        padding-bottom: 32px;
        border-bottom: 1px solid var(--border);
    }

    .brand-logo {
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .brand-mark {
        width: 42px;
        height: 42px;
        border-radius: 10px;
        background: linear-gradient(135deg, var(--primary), #c07a4e);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
        color: var(--bg-deep);
        flex-shrink: 0;
        box-shadow: 0 4px 14px rgba(224, 179, 132, .3);
    }

    .brand-text {
        font-size: 17px;
        font-weight: 700;
        letter-spacing: .5px;
        line-height: 1.4;
        color: var(--text);
    }

    .brand-tagline {
        font-size: 11px;
        color: var(--text-weak);
        margin-top: 6px;
        letter-spacing: 1px;
    }

    .sidebar-nav {
        flex: 1;
        padding-top: 24px;
        display: flex;
        flex-direction: column;
        gap: 4px;
    }

    .nav-link {
        display: flex;
        align-items: center;
        gap: 14px;
        padding: 12px 16px;
        border-radius: var(--radius-md);
        font-size: 15px;
        font-weight: 500;
        color: var(--text-muted);
        transition: background .2s, color .2s, transform .2s;
        position: relative;
    }

    .nav-link i {
        width: 20px;
        text-align: center;
        font-size: 16px;
        color: var(--text-weak);
        transition: color .2s;
    }

    .nav-link:hover {
        background: var(--bg-card);
        color: var(--text);
        transform: translateX(2px);
    }
    .nav-link:hover i {
        color: var(--primary);
    }

    .nav-link.active {
        background: var(--primary-pale);
        color: var(--primary);
        font-weight: 600;
    }
    .nav-link.active i {
        color: var(--primary);
    }
    .nav-link.active::before {
        content: '';
        position: absolute;
        left: 0;
        top: 50%;
        transform: translateY(-50%);
        width: 3px;
        height: 22px;
        background: var(--primary);
        border-radius: 0 3px 3px 0;
    }

    .sidebar-footer {
        padding-top: 20px;
        border-top: 1px solid var(--border);
    }

    .sidebar-status {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 12px 14px;
        background: var(--bg-card);
        border-radius: var(--radius-md);
        border: 1px solid var(--border);
        font-size: 13px;
        color: var(--text-muted);
        margin-bottom: 14px;
    }

    .status-dot {
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: var(--success);
        box-shadow: 0 0 8px rgba(124, 184, 130, .7);
        flex-shrink: 0;
        animation: pulse 2s infinite;
    }

    @keyframes pulse {
        0%,
        100% {
            opacity: 1;
            box-shadow: 0 0 8px rgba(124, 184, 130, .7);
        }
        50% {
            opacity: .6;
            box-shadow: 0 0 4px rgba(124, 184, 130, .4);
        }
    }

    .sidebar-copy {
        font-size: 12px;
        color: var(--text-weak);
        text-align: center;
        padding-top: 8px;
    }

    .sidebar-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, .5);
        z-index: 99;
        opacity: 0;
        pointer-events: none;
        transition: opacity .3s ease;
        backdrop-filter: blur(2px);
    }
    .sidebar-overlay.active {
        opacity: 1;
        pointer-events: auto;
    }

    /* ===== Main Layout ===== */
    .main-content {
        flex: 1;
        margin-left: var(--sidebar-w);
        min-width: 0;
        display: flex;
        flex-direction: column;
    }

    .mobile-header {
        display: none;
        position: sticky;
        top: 0;
        z-index: 90;
        height: 60px;
        align-items: center;
        justify-content: space-between;
        padding: 0 20px;
        background: rgba(11, 14, 20, .92);
        backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--border);
    }

    .menu-toggle {
        width: 40px;
        height: 40px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 5px;
        border-radius: var(--radius-sm);
        border: 1px solid var(--border-light);
        background: var(--bg-card);
    }
    .menu-toggle span {
        width: 18px;
        height: 2px;
        background: var(--text);
        border-radius: 2px;
        display: block;
        transition: transform .2s;
    }

    /* ===== Container & Sections ===== */
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 var(--space-4);
    }

    .section {
        padding: var(--space-7) 0;
        position: relative;
    }

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

    .section-head {
        text-align: center;
        max-width: 640px;
        margin: 0 auto var(--space-6);
    }

    .section-tag {
        display: inline-block;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 2px;
        text-transform: uppercase;
        color: var(--primary);
        background: var(--primary-pale);
        border: 1px solid rgba(224, 179, 132, .2);
        border-radius: 20px;
        padding: 4px 18px;
        margin-bottom: 16px;
    }

    .section-head h2 {
        font-size: 32px;
        font-weight: 700;
        color: var(--text);
        line-height: 1.3;
        margin-bottom: 12px;
        letter-spacing: .5px;
    }

    .section-head p {
        color: var(--text-muted);
        font-size: 16px;
        line-height: 1.7;
    }

    .section-head h2::after {
        content: '';
        display: block;
        width: 48px;
        height: 3px;
        background: var(--primary);
        margin: 16px auto 0;
        border-radius: 3px;
    }

    /* ===== Hero ===== */
    .hero {
        position: relative;
        padding: 120px 0 100px;
        background-image: url('/assets/images/backpic/back-1.png');
        background-size: cover;
        background-position: center;
        overflow: hidden;
        border-bottom: 1px solid var(--border);
    }

    .hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(7, 10, 15, .95) 0%, rgba(11, 14, 20, .82) 50%, rgba(7, 10, 15, .94) 100%);
    }

    .hero-inner {
        position: relative;
        z-index: 2;
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
        max-width: 780px;
        margin: 0 auto;
    }

    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        font-weight: 600;
        color: var(--primary);
        background: rgba(7, 10, 15, .6);
        border: 1px solid rgba(224, 179, 132, .3);
        border-radius: 30px;
        padding: 6px 20px;
        margin-bottom: 24px;
        letter-spacing: 1px;
        backdrop-filter: blur(6px);
    }
    .hero-badge i {
        font-size: 12px;
    }

    .hero h1 {
        font-size: 52px;
        font-weight: 800;
        line-height: 1.25;
        color: var(--text);
        letter-spacing: 2px;
        margin-bottom: 16px;
        text-shadow: 0 4px 30px rgba(0, 0, 0, .4);
    }

    .hero h1 span {
        color: var(--primary);
    }

    .hero-lead {
        font-size: 18px;
        color: var(--text-muted);
        line-height: 1.8;
        margin-bottom: 36px;
        max-width: 620px;
    }

    .hero-btns {
        display: flex;
        flex-wrap: wrap;
        gap: 16px;
        justify-content: center;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 30px;
        border-radius: var(--radius-md);
        font-size: 15px;
        font-weight: 600;
        line-height: 1.4;
        border: 1px solid transparent;
        transition: all .25s ease;
    }
    .btn i {
        font-size: 14px;
    }

    .btn-primary {
        background: var(--primary);
        color: var(--bg-deep);
        border-color: var(--primary);
    }
    .btn-primary:hover {
        background: var(--primary-hover);
        border-color: var(--primary-hover);
        transform: translateY(-3px);
        box-shadow: 0 10px 30px rgba(224, 179, 132, .25);
    }
    .btn-primary:active {
        transform: translateY(-1px);
        box-shadow: 0 4px 14px rgba(0, 0, 0, .3);
    }

    .btn-outline {
        background: transparent;
        color: var(--text);
        border-color: var(--border-light);
    }
    .btn-outline:hover {
        border-color: var(--primary);
        color: var(--primary);
        transform: translateY(-3px);
        background: rgba(224, 179, 132, .08);
    }
    .btn-outline:active {
        transform: translateY(-1px);
    }

    .hero-metrics {
        display: flex;
        gap: 32px;
        margin-top: 60px;
        padding-top: 36px;
        border-top: 1px solid rgba(255, 255, 255, .08);
        justify-content: center;
        flex-wrap: wrap;
    }

    .hero-metric {
        text-align: center;
    }
    .hero-metric .num {
        font-size: 28px;
        font-weight: 700;
        color: var(--text);
        font-family: var(--font-serif);
    }
    .hero-metric .label {
        font-size: 13px;
        color: var(--text-muted);
        margin-top: 4px;
    }

    /* ===== Features ===== */
    .features-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }

    .feature-card {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 40px 28px;
        text-align: center;
        transition: all .3s ease;
        position: relative;
        overflow: hidden;
    }

    .feature-card::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: var(--primary);
        opacity: 0;
        transition: opacity .3s;
    }

    .feature-card:hover {
        border-color: var(--border-light);
        box-shadow: var(--shadow-md);
        transform: translateY(-4px);
    }
    .feature-card:hover::after {
        opacity: 1;
    }

    .feature-icon {
        width: 68px;
        height: 68px;
        border-radius: 50%;
        margin: 0 auto 24px;
        background: var(--primary-pale);
        border: 1px solid rgba(224, 179, 132, .2);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 26px;
        color: var(--primary);
        transition: transform .3s;
    }

    .feature-card:hover .feature-icon {
        transform: rotate(-6deg) scale(1.05);
    }

    .feature-card h3 {
        font-size: 20px;
        font-weight: 600;
        margin-bottom: 14px;
        color: var(--text);
    }

    .feature-card p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
    }

    /* ===== Category Showcase ===== */
    .category-showcase {
        background: var(--bg-deep);
        border-top: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
    }

    .category-card {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0;
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius-xl);
        overflow: hidden;
        transition: box-shadow .3s ease, border-color .3s ease;
    }

    .category-card:hover {
        box-shadow: var(--shadow-lg);
        border-color: var(--border-light);
    }

    .category-img {
        position: relative;
        min-height: 280px;
        background-size: cover;
        background-position: center;
        background-image: url('/assets/images/coverpic/cover-1.png');
    }

    .category-img::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(to right, transparent 40%, rgba(18, 22, 32, .6));
    }

    .category-body {
        padding: 48px;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }

    .category-body .cat-badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 12px;
        font-weight: 600;
        color: var(--primary);
        background: var(--primary-pale);
        border-radius: 20px;
        padding: 4px 14px;
        width: fit-content;
        margin-bottom: 16px;
        border: 1px solid rgba(224, 179, 132, .2);
    }

    .category-body h2 {
        font-size: 28px;
        font-weight: 700;
        margin-bottom: 14px;
        line-height: 1.3;
    }

    .category-body p {
        color: var(--text-muted);
        font-size: 15px;
        line-height: 1.8;
        margin-bottom: 24px;
    }

    .category-link {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: var(--primary);
        font-weight: 600;
        font-size: 15px;
        transition: gap .2s;
    }
    .category-link:hover {
        gap: 14px;
    }

    /* ===== Latest Log ===== */
    .log-list {
        max-width: 760px;
        margin: 0 auto;
        position: relative;
        padding-left: 28px;
    }

    .log-list::before {
        content: '';
        position: absolute;
        left: 8px;
        top: 8px;
        bottom: 8px;
        width: 2px;
        background: linear-gradient(to bottom, var(--primary), transparent);
        border-radius: 2px;
    }

    .log-card {
        position: relative;
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        padding: 24px 28px;
        margin-bottom: 20px;
        transition: all .3s ease;
    }

    .log-card::before {
        content: '';
        position: absolute;
        left: -28px;
        top: 26px;
        width: 16px;
        height: 16px;
        border-radius: 50%;
        background: var(--bg);
        border: 3px solid var(--primary);
        box-shadow: 0 0 8px rgba(224, 179, 132, .3);
        transition: transform .3s, background .3s;
    }

    .log-card:hover {
        border-color: rgba(224, 179, 132, .3);
        box-shadow: var(--shadow-md);
        transform: translateX(4px);
        background: var(--bg-card-hover);
    }
    .log-card:hover::before {
        background: var(--primary);
        transform: scale(1.2);
    }

    .log-meta {
        display: flex;
        align-items: center;
        gap: 12px;
        margin-bottom: 10px;
        flex-wrap: wrap;
    }

    .log-cat {
        font-size: 12px;
        font-weight: 600;
        color: var(--primary);
        background: var(--primary-pale);
        padding: 3px 12px;
        border-radius: 20px;
        border: 1px solid rgba(224, 179, 132, .2);
    }

    .log-date {
        font-size: 13px;
        color: var(--text-weak);
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .log-date i {
        font-size: 12px;
    }

    .log-card h3 {
        font-size: 18px;
        font-weight: 600;
        margin-bottom: 8px;
        line-height: 1.5;
    }
    .log-card h3 a {
        color: var(--text);
        transition: color .2s;
    }
    .log-card h3 a:hover {
        color: var(--primary);
    }

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

    .log-empty {
        text-align: center;
        padding: 60px 20px;
        color: var(--text-muted);
        background: var(--bg-card);
        border: 1px dashed var(--border-light);
        border-radius: var(--radius-lg);
        font-size: 15px;
    }

    .log-empty i {
        font-size: 28px;
        display: block;
        margin-bottom: 12px;
        color: var(--text-weak);
    }

    .log-more {
        text-align: center;
        margin-top: 28px;
    }

    /* ===== Stats ===== */
    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }

    .stat-card {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 36px 20px;
        text-align: center;
        position: relative;
        overflow: hidden;
        transition: transform .3s, box-shadow .3s;
    }

    .stat-card::before {
        content: '';
        position: absolute;
        top: -40%;
        left: -40%;
        width: 80%;
        height: 80%;
        border-radius: 50%;
        background: radial-gradient(circle, rgba(224, 179, 132, .08), transparent 70%);
        pointer-events: none;
    }

    .stat-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-md);
        border-color: var(--border-light);
    }

    .stat-num {
        font-size: 40px;
        font-weight: 800;
        color: var(--primary);
        font-family: var(--font-serif);
        line-height: 1.2;
        margin-bottom: 8px;
    }

    .stat-label {
        font-size: 14px;
        color: var(--text-muted);
    }

    /* ===== Process ===== */
    .process-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 32px;
        counter-reset: step;
    }

    .process-step {
        position: relative;
        padding: 40px 28px;
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        text-align: center;
        transition: all .3s ease;
    }

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

    .process-step .step-num {
        font-size: 56px;
        font-weight: 800;
        color: rgba(224, 179, 132, .12);
        line-height: 1;
        margin-bottom: 16px;
        font-family: var(--font-serif);
        position: relative;
        z-index: 0;
    }

    .process-step h3 {
        font-size: 18px;
        font-weight: 600;
        margin-bottom: 12px;
        color: var(--text);
    }

    .process-step p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
    }

    .process-step .step-icon {
        width: 56px;
        height: 56px;
        border-radius: 50%;
        margin: -60px auto 20px;
        background: var(--bg);
        border: 2px solid var(--primary);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
        color: var(--primary);
        position: relative;
        z-index: 1;
    }

    .process-step .step-arrow {
        position: absolute;
        top: 50%;
        right: -28px;
        font-size: 18px;
        color: var(--text-weak);
        z-index: 2;
    }

    /* ===== FAQ ===== */
    .faq-list {
        max-width: 760px;
        margin: 0 auto;
    }

    .faq-item {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        margin-bottom: 14px;
        overflow: hidden;
        transition: border-color .25s, box-shadow .25s;
    }

    .faq-item.active {
        border-color: rgba(224, 179, 132, .3);
        box-shadow: var(--shadow-sm);
    }

    .faq-question {
        width: 100%;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 16px;
        padding: 20px 24px;
        background: transparent;
        color: var(--text);
        font-size: 15px;
        font-weight: 600;
        text-align: left;
        cursor: pointer;
        transition: color .2s;
    }

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

    .faq-question .icon {
        width: 24px;
        height: 24px;
        border-radius: 50%;
        background: var(--primary-pale);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 12px;
        color: var(--primary);
        flex-shrink: 0;
        transition: transform .3s;
    }

    .faq-item.active .icon {
        transform: rotate(180deg);
    }

    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height .35s ease, padding .3s ease;
        padding: 0 24px;
        color: var(--text-muted);
        font-size: 14px;
        line-height: 1.8;
    }

    .faq-item.active .faq-answer {
        max-height: 300px;
        padding: 0 24px 20px;
    }

    /* ===== CTA ===== */
    .cta-section {
        position: relative;
        padding: 90px 0;
        background-image: url('/assets/images/backpic/back-2.png');
        background-size: cover;
        background-position: center;
        overflow: hidden;
    }

    .cta-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(7, 10, 15, .92), rgba(11, 14, 20, .85));
    }

    .cta-inner {
        position: relative;
        z-index: 2;
        text-align: center;
        max-width: 620px;
        margin: 0 auto;
    }

    .cta-inner h2 {
        font-size: 36px;
        font-weight: 700;
        color: var(--text);
        line-height: 1.3;
        margin-bottom: 16px;
    }

    .cta-inner p {
        font-size: 16px;
        color: var(--text-muted);
        margin-bottom: 32px;
    }

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

    /* ===== Footer ===== */
    .site-footer {
        background: var(--bg-deep);
        border-top: 1px solid var(--border);
        padding: 56px 0 24px;
    }

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

    .footer-brand .brand-logo {
        margin-bottom: 14px;
    }

    .footer-brand p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
        max-width: 320px;
    }

    .footer-col h4 {
        font-size: 15px;
        font-weight: 600;
        color: var(--text);
        margin-bottom: 16px;
        position: relative;
        padding-bottom: 10px;
    }
    .footer-col h4::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 24px;
        height: 2px;
        background: var(--primary);
        border-radius: 2px;
    }

    .footer-col a {
        display: block;
        font-size: 14px;
        color: var(--text-muted);
        padding: 6px 0;
        transition: color .2s, padding-left .2s;
    }
    .footer-col a:hover {
        color: var(--primary);
        padding-left: 4px;
    }

    .footer-col p {
        font-size: 14px;
        color: var(--text-muted);
        padding: 6px 0;
    }

    .footer-bottom {
        border-top: 1px solid var(--border);
        padding-top: 24px;
        text-align: center;
        font-size: 13px;
        color: var(--text-weak);
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
    }

    .footer-bottom a {
        color: var(--text-weak);
    }
    .footer-bottom a:hover {
        color: var(--primary);
    }

    /* ===== Responsive ===== */
    @media (max-width: 1200px) {
        .features-grid,
        .process-grid {
            gap: 20px;
        }

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

        .category-body {
            padding: 36px;
        }
    }

    @media (max-width: 992px) {
        .sidebar {
            transform: translateX(-100%);
            box-shadow: 4px 0 40px rgba(0, 0, 0, .5);
        }
        .sidebar.open {
            transform: translateX(0);
        }

        .main-content {
            margin-left: 0;
        }

        .mobile-header {
            display: flex;
        }

        .hero {
            padding: 80px 0 60px;
        }
        .hero h1 {
            font-size: 40px;
        }

        .features-grid {
            grid-template-columns: 1fr;
            max-width: 560px;
            margin: 0 auto;
        }

        .category-card {
            grid-template-columns: 1fr;
        }
        .category-img {
            min-height: 240px;
        }

        .process-grid {
            grid-template-columns: 1fr;
            max-width: 480px;
            margin: 0 auto;
        }
        .process-step .step-arrow {
            display: none;
        }

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

    @media (max-width: 640px) {
        .section {
            padding: 48px 0;
        }

        .section-head h2 {
            font-size: 26px;
        }

        .hero {
            padding: 60px 0 48px;
        }
        .hero h1 {
            font-size: 32px;
            line-height: 1.35;
        }
        .hero-lead {
            font-size: 16px;
        }
        .hero-metrics {
            gap: 20px;
            margin-top: 40px;
            padding-top: 24px;
        }
        .hero-metric .num {
            font-size: 22px;
        }

        .btn {
            padding: 11px 22px;
            font-size: 14px;
            width: 100%;
            max-width: 320px;
        }
        .hero-btns,
        .cta-btns {
            flex-direction: column;
            align-items: center;
        }

        .category-body {
            padding: 28px 20px;
        }
        .category-body h2 {
            font-size: 22px;
        }

        .log-list {
            padding-left: 20px;
        }
        .log-list::before {
            left: 4px;
        }
        .log-card::before {
            left: -20px;
            top: 22px;
            width: 12px;
            height: 12px;
            border-width: 2px;
        }
        .log-card {
            padding: 18px;
        }
        .log-card h3 {
            font-size: 16px;
        }

        .stats-grid {
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }
        .stat-card {
            padding: 24px 12px;
        }
        .stat-num {
            font-size: 28px;
        }

        .process-grid {
            gap: 16px;
        }
        .process-step {
            padding: 28px 20px;
        }
        .process-step .step-icon {
            margin-top: -48px;
        }

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

        .footer-bottom {
            flex-direction: column;
            gap: 6px;
        }

        .container {
            padding: 0 18px;
        }
    }

    @media (max-width: 360px) {
        .hero h1 {
            font-size: 26px;
        }
        .stats-grid {
            grid-template-columns: 1fr;
        }
        .brand-text {
            font-size: 15px;
        }
    }

/* roulang page: category1 */
:root {
            --bg-primary: #0f0e17;
            --bg-secondary: #171522;
            --bg-card: #1b1827;
            --bg-elevated: #211d30;
            --accent: #e0a526;
            --accent-dim: #b8860b;
            --accent-2: #e53170;
            --text-primary: #f5f0e8;
            --text-secondary: #c9bfae;
            --text-muted: #8f8678;
            --border: #353046;
            --border-warm: #55401f;
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 6px;
            --shadow-sm: 0 2px 10px rgba(0, 0, 0, .25);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, .35);
            --shadow-accent: 0 4px 18px rgba(224, 165, 38, .18);
            --font-sans: "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --font-serif: "Noto Serif SC", serif;
            --sidebar-w: 250px;
            --space-section: 88px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

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

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

        input,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 28px;
        }

        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        .sidebar {
            width: var(--sidebar-w);
            flex-shrink: 0;
            background: var(--bg-secondary);
            border-right: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            position: fixed;
            top: 0;
            bottom: 0;
            left: 0;
            z-index: 100;
            padding: 28px 20px 20px;
            transition: transform .3s ease;
        }

        .sidebar-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 42px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
        }

        .brand-mark {
            width: 42px;
            height: 42px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(145deg, #f0b73e, #c98a12);
            color: #111;
            font-size: 18px;
            border-radius: 12px;
            box-shadow: var(--shadow-accent);
            border: 1px solid rgba(255, 255, 255, .35);
        }

        .brand-text {
            font-family: var(--font-serif);
            font-size: 17px;
            font-weight: 900;
            letter-spacing: .02em;
            line-height: 1.3;
            color: var(--text-primary);
        }

        .sidebar-close {
            display: none;
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: rgba(255, 255, 255, .06);
            align-items: center;
            justify-content: center;
            font-size: 15px;
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border: 1px solid transparent;
            position: relative;
            transition: background .2s ease, color .2s ease, transform .2s ease, box-shadow .2s ease;
        }

        .nav-link i {
            width: 20px;
            text-align: center;
            font-size: 16px;
            color: var(--text-muted);
            transition: color .2s ease;
        }

        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, .04);
            transform: translateX(3px);
        }

        .nav-link:hover i {
            color: var(--accent);
        }

        .nav-link.active {
            background: rgba(224, 165, 38, .12);
            border-color: rgba(224, 165, 38, .25);
            color: var(--accent);
            box-shadow: var(--shadow-sm);
        }

        .nav-link.active i {
            color: var(--accent);
        }

        .nav-link.active::before {
            content: "";
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 22px;
            border-radius: 0 4px 4px 0;
            background: var(--accent);
        }

        .sidebar-foot {
            margin-top: auto;
            padding: 16px 12px;
            border-top: 1px dashed var(--border);
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .sidebar-foot .dot {
            display: inline-block;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #5ecb71;
            margin-right: 6px;
            box-shadow: 0 0 8px rgba(94, 203, 113, .6);
            animation: pulse 1.6s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: .5;
                transform: scale(.85);
            }
        }

        .main-wrap {
            flex: 1;
            display: flex;
            flex-direction: column;
            min-width: 0;
            margin-left: var(--sidebar-w);
        }

        .mobile-header {
            display: none;
            align-items: center;
            justify-content: space-between;
            padding: 14px 20px;
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 90;
        }

        .menu-toggle {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 9px;
            background: rgba(255, 255, 255, .06);
            font-size: 16px;
            color: var(--text-primary);
            transition: background .2s ease;
        }

        .menu-toggle:hover {
            background: rgba(224, 165, 38, .18);
            color: var(--accent);
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, .58);
            z-index: 95;
            backdrop-filter: blur(2px);
        }

        .sidebar-overlay.show {
            display: block;
        }

        .page-hero {
            position: relative;
            padding: 96px 0 88px;
            background: linear-gradient(135deg, rgba(15, 14, 23, .88), rgba(23, 21, 34, .95)), url('/assets/images/backpic/back-1.png') center/cover;
            border-bottom: 1px solid var(--border);
        }

        .page-hero::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            border: 1px solid rgba(224, 165, 38, .4);
            border-radius: 999px;
            font-size: 12px;
            letter-spacing: .14em;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 22px;
            background: rgba(224, 165, 38, .08);
        }

        .hero-title {
            font-family: var(--font-serif);
            font-size: 42px;
            font-weight: 900;
            line-height: 1.25;
            letter-spacing: .01em;
            margin-bottom: 18px;
            max-width: 660px;
        }

        .hero-title span {
            color: var(--accent);
        }

        .hero-sub {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 620px;
            margin-bottom: 28px;
            line-height: 1.9;
        }

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

        .hero-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            padding: 7px 14px;
            border: 1px solid var(--border);
            border-radius: 999px;
            background: rgba(0, 0, 0, .28);
        }

        .hero-meta .meta-item i {
            color: var(--accent);
            font-size: 13px;
        }

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

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

        .section-header {
            margin-bottom: 40px;
            max-width: 640px;
        }

        .section-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: .1em;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 10px;
            padding-left: 14px;
            position: relative;
        }

        .section-tag::before {
            content: "";
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 2px;
            transform: rotate(45deg) translateY(-40%);
        }

        .section-title {
            font-family: var(--font-serif);
            font-size: 30px;
            font-weight: 900;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-sub {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.85;
        }

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

        .entry-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
            box-shadow: var(--shadow-sm);
            position: relative;
        }

        .entry-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
            opacity: 0;
            transition: opacity .3s ease;
        }

        .entry-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-warm);
        }

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

        .entry-card-media {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
            background: var(--bg-elevated);
        }

        .entry-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
            opacity: .85;
        }

        .entry-card:hover .entry-card-media img {
            transform: scale(1.04);
            opacity: 1;
        }

        .entry-card-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(15, 14, 23, .75));
        }

        .entry-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 700;
            border-radius: 999px;
            background: rgba(15, 14, 23, .78);
            border: 1px solid var(--accent);
            color: var(--accent);
            backdrop-filter: blur(4px);
        }

        .entry-card-body {
            padding: 22px 22px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .entry-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            font-family: var(--font-serif);
        }

        .entry-card-body p {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
            flex: 1;
        }

        .entry-card-foot {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px dashed var(--border);
        }

        .entry-arrow {
            width: 30px;
            height: 30px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            border: 1px solid var(--border);
            color: var(--text-muted);
            font-size: 12px;
            transition: all .25s ease;
        }

        .entry-card:hover .entry-arrow {
            background: var(--accent);
            border-color: var(--accent);
            color: #0f0e17;
        }

        .tag-group {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 10px;
            border-radius: 6px;
            font-size: 11.5px;
            font-weight: 500;
            background: rgba(224, 165, 38, .1);
            border: 1px solid rgba(224, 165, 38, .22);
            color: var(--accent);
        }

        .tag i {
            font-size: 10px;
        }

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

        .step-grid::before {
            content: "";
            position: absolute;
            top: 38px;
            left: 8%;
            right: 8%;
            height: 1px;
            background: repeating-linear-gradient(90deg, var(--border) 0 6px, transparent 6px 12px);
        }

        .step-item {
            text-align: center;
            padding: 28px 16px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            position: relative;
            transition: transform .25s ease, box-shadow .25s ease;
        }

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

        .step-num {
            width: 52px;
            height: 52px;
            margin: 0 auto 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 900;
            color: var(--accent);
            background: var(--bg-primary);
            border: 1px solid var(--border-warm);
            border-radius: 14px;
            box-shadow: inset 0 0 0 4px rgba(224, 165, 38, .08);
            position: relative;
            z-index: 2;
        }

        .step-item h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

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

        .status-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 26px 22px;
            text-align: center;
            transition: border-color .25s ease, transform .25s ease;
        }

        .status-card:hover {
            border-color: var(--border-warm);
            transform: translateY(-3px);
        }

        .status-icon {
            font-size: 22px;
            margin-bottom: 10px;
            color: var(--accent);
        }

        .status-value {
            font-family: var(--font-serif);
            font-size: 30px;
            font-weight: 900;
            color: var(--text-primary);
            line-height: 1.3;
            margin-bottom: 4px;
        }

        .status-label {
            font-size: 13px;
            color: var(--text-muted);
        }

        .status-card.green .status-icon {
            color: #5ecb71;
        }

        .status-card.green .status-value {
            color: #5ecb71;
            font-size: 22px;
            padding-top: 6px;
        }

        .guide-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .guide-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 18px 22px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
        }

        .guide-item:hover {
            transform: translateX(5px);
            border-color: var(--border-warm);
            box-shadow: var(--shadow-sm);
        }

        .guide-num {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-serif);
            font-size: 15px;
            font-weight: 900;
            color: var(--accent);
            background: rgba(224, 165, 38, .1);
            border: 1px solid rgba(224, 165, 38, .2);
            border-radius: 10px;
        }

        .guide-info {
            flex: 1;
            min-width: 0;
        }

        .guide-info h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 3px;
        }

        .guide-info p {
            font-size: 13px;
            color: var(--text-muted);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .guide-arrow {
            color: var(--text-muted);
            font-size: 14px;
            transition: transform .25s ease, color .25s ease;
        }

        .guide-item:hover .guide-arrow {
            transform: translateX(4px);
            color: var(--accent);
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color .25s ease;
        }

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

        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            text-align: left;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            transition: color .2s ease;
        }

        .faq-q i {
            flex-shrink: 0;
            font-size: 13px;
            color: var(--accent);
            transition: transform .3s ease;
        }

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

        .faq-a {
            display: none;
            padding: 0 22px 18px;
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.85;
        }

        .faq-a.show {
            display: block;
        }

        .cta-block {
            background: linear-gradient(135deg, rgba(224, 165, 38, .16), rgba(229, 49, 112, .08)), var(--bg-secondary);
            border: 1px solid var(--border-warm);
            border-radius: var(--radius-lg);
            padding: 52px 44px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .cta-block::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(224, 165, 38, .2), transparent 70%);
            pointer-events: none;
        }

        .cta-title {
            font-family: var(--font-serif);
            font-size: 26px;
            font-weight: 900;
            margin-bottom: 12px;
        }

        .cta-sub {
            color: var(--text-secondary);
            font-size: 14px;
            max-width: 520px;
            margin: 0 auto 28px;
            line-height: 1.85;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 13px 30px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 700;
            transition: all .25s ease;
            position: relative;
            overflow: hidden;
        }

        .btn-primary {
            background: linear-gradient(135deg, #f0b73e, #d99a1a);
            color: #0f0e17;
            box-shadow: 0 4px 16px rgba(224, 165, 38, .3);
            border: 1px solid rgba(255, 255, 255, .25);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 26px rgba(224, 165, 38, .4);
            background: linear-gradient(135deg, #f7c655, #dfa428);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(224, 165, 38, .3);
        }

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

        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(224, 165, 38, .08);
        }

        .btn i {
            font-size: 13px;
        }

        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border);
            padding: 52px 0 26px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px dashed var(--border);
        }

        .footer-brand p {
            margin-top: 16px;
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
            letter-spacing: .04em;
        }

        .footer-col a {
            display: block;
            font-size: 13.5px;
            color: var(--text-secondary);
            margin-bottom: 10px;
            transition: color .2s ease, padding-left .2s ease;
        }

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

        .footer-col p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
            line-height: 1.7;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            padding-top: 22px;
            font-size: 12.5px;
            color: var(--text-muted);
        }

        .faq-a p + p {
            margin-top: 8px;
        }

        @media (max-width: 1024px) {
            .page-hero {
                padding: 72px 0 64px;
            }
            .hero-title {
                font-size: 34px;
            }
            .entry-grid {
                gap: 18px;
            }
            .entry-card-body h3 {
                font-size: 16px;
            }
            .status-grid {
                gap: 14px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space-section: 64px;
            }
            .sidebar {
                transform: translateX(-100%);
                box-shadow: 2px 0 30px rgba(0, 0, 0, .5);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .sidebar-close {
                display: flex;
            }
            .main-wrap {
                margin-left: 0;
            }
            .mobile-header {
                display: flex;
            }
            .page-hero {
                padding: 64px 0 54px;
                background: linear-gradient(150deg, rgba(15, 14, 23, .9), rgba(23, 21, 34, .96)), url('/assets/images/backpic/back-1.png') center/cover;
            }
            .hero-title {
                font-size: 29px;
            }
            .hero-sub {
                font-size: 14.5px;
            }
            .hero-meta {
                gap: 8px;
            }
            .section-title {
                font-size: 25px;
            }
            .entry-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-grid::before {
                display: none;
            }
            .status-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-block {
                padding: 42px 28px;
            }
            .cta-title {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                justify-content: flex-start;
            }
            .guide-item {
                padding: 15px 16px;
                flex-wrap: wrap;
                gap: 12px;
            }
            .guide-info {
                flex-basis: calc(100% - 60px);
            }
            .guide-info p {
                white-space: normal;
                text-overflow: clip;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }
            .page-hero {
                padding: 48px 0 42px;
            }
            .hero-title {
                font-size: 24px;
            }
            .hero-meta .meta-item {
                font-size: 12px;
                padding: 5px 10px;
            }
            .entry-grid {
                grid-template-columns: 1fr;
            }
            .step-grid {
                grid-template-columns: 1fr;
            }
            .status-grid {
                grid-template-columns: 1fr;
            }
            .status-card {
                padding: 20px;
            }
            .section {
                --space-section: 52px;
            }
            .cta-block {
                padding: 34px 20px;
                border-radius: 12px;
            }
            .btn {
                width: 100%;
                justify-content: center;
                padding: 13px 20px;
            }
            .hero-meta {
                flex-direction: column;
                align-items: flex-start;
            }
            .brand-text {
                font-size: 15px;
            }
        }

/* roulang page: article */
:root {
  --bg-deep: #131110;
  --bg-main: #1b1815;
  --bg-card: #252019;
  --bg-panel: #2d271f;
  --gold: #d4a54a;
  --gold-light: #e6c27c;
  --gold-dark: #b0802e;
  --text-hi: #f0e7d8;
  --text-mid: #b8aa92;
  --text-low: #8a7c68;
  --border: #3b3327;
  --border-light: #4f4433;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, .25);
  --shadow-md: 0 8px 28px rgba(0, 0, 0, .35);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --font-serif: "Songti SC", "SimSun", Georgia, serif;
  --sidebar-w: 264px;
  --transition: all .25s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg-main);
  color: var(--text-hi);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; border-radius: var(--radius-md); }
a { color: var(--gold); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--gold-light); }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea { font-family: inherit; }
ul, ol { list-style-position: inside; }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
  border-radius: 4px;
}
.container { width: 100%; max-width: 1160px; margin: 0 auto; padding: 0 24px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: var(--transition);
  cursor: pointer;
  white-space: nowrap;
}
.btn i { font-size: 14px; }
.btn-primary {
  background: var(--gold);
  color: #1b1408;
  box-shadow: 0 4px 18px rgba(212, 165, 74, .25);
}
.btn-primary:hover {
  background: var(--gold-light);
  color: #1b1408;
  transform: translateY(-2px);
  box-shadow: 0 8px 26px rgba(212, 165, 74, .35);
}
.btn-primary:active { transform: translateY(0); }
.btn-light {
  background: var(--text-hi);
  color: #1b1408;
}
.btn-light:hover {
  background: #fff;
  color: #1b1408;
  transform: translateY(-2px);
}

.badge {
  display: inline-block;
  padding: 4px 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .5px;
  border-radius: 999px;
  background: rgba(212, 165, 74, .15);
  color: var(--gold);
  border: 1px solid rgba(212, 165, 74, .35);
  white-space: nowrap;
}

.site-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w);
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  background: var(--bg-deep);
  border-right: 1px solid var(--border);
  z-index: 100;
  display: flex;
  flex-direction: column;
}
.sidebar-inner { display: flex; flex-direction: column; height: 100%; padding: 28px 0 20px; }

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text-hi);
  font-weight: 700;
  letter-spacing: .2px;
}
.brand-logo:hover { color: var(--gold); }
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: linear-gradient(145deg, var(--gold-light), var(--gold-dark));
  color: #1b1408;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.4), var(--shadow-sm);
  flex-shrink: 0;
}
.sidebar .brand-logo { padding: 0 24px; margin-bottom: 34px; }

.sidebar-nav { display: flex; flex-direction: column; gap: 6px; padding: 0 14px; flex: 1; }
.nav-group-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-low);
  padding: 0 10px 8px;
  font-weight: 700;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-mid);
  font-size: 15px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: var(--transition);
}
.nav-link i { width: 18px; text-align: center; font-size: 15px; }
.nav-link:hover {
  color: var(--gold-light);
  background: rgba(212, 165, 74, .06);
}
.nav-link.active {
  color: var(--gold);
  background: rgba(212, 165, 74, .1);
  border-color: rgba(212, 165, 74, .25);
}
.nav-link.active i { color: var(--gold); }

.sidebar-status {
  margin: 18px 16px 0;
  padding: 14px 16px;
  border: 1px dashed var(--border-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-mid);
  background: rgba(0,0,0,.16);
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #7ac94f;
  box-shadow: 0 0 0 3px rgba(122, 201, 79, .18);
  animation: pulse 2s infinite;
  flex-shrink: 0;
}
@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 3px rgba(122, 201, 79, .18); }
  50% { opacity: .7; box-shadow: 0 0 0 6px rgba(122, 201, 79, .08); }
}

.main-panel { flex: 1; margin-left: var(--sidebar-w); display: flex; flex-direction: column; min-width: 0; }

.mobile-header {
  display: none;
  position: sticky;
  top: 0;
  z-index: 90;
  height: 64px;
  background: rgba(19, 17, 16, .92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
  align-items: center;
  justify-content: space-between;
}
.mobile-header .brand-logo { font-size: 14px; }
.mobile-header .brand-mark { font-size: 14px; }
.menu-toggle {
  width: 42px;
  height: 42px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-hi);
  font-size: 18px;
  transition: var(--transition);
  background: rgba(255,255,255,.03);
}
.menu-toggle:hover { border-color: var(--gold); color: var(--gold); }

.drawer-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .55);
  backdrop-filter: blur(4px);
  z-index: 190;
  opacity: 0;
  transition: opacity .3s ease;
}
.drawer-overlay.show { opacity: 1; }

.mobile-drawer {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 300px;
  background: var(--bg-deep);
  border-right: 1px solid var(--border);
  z-index: 200;
  transform: translateX(-100%);
  transition: transform .32s cubic-bezier(.4, 0, .2, 1);
  flex-direction: column;
  padding: 24px 0;
}
.mobile-drawer.open { transform: translateX(0); }
.drawer-top { display: flex; align-items: center; justify-content: space-between; padding: 0 20px 24px; border-bottom: 1px solid var(--border); margin-bottom: 20px; }
.drawer-close {
  width: 38px;
  height: 38px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-mid);
  font-size: 16px;
  transition: var(--transition);
}
.drawer-close:hover { border-color: var(--gold); color: var(--gold); }

.page-content { flex: 1; padding-top: 48px; }

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-low);
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-mid); }
.breadcrumb a:hover { color: var(--gold); }
.breadcrumb-sep { color: var(--text-low); opacity: .6; }

.article-detail {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.article-header { padding: 40px 44px 24px; }
.article-cat-badge { margin-bottom: 16px; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.article-title {
  font-family: var(--font-serif);
  font-size: 34px;
  line-height: 1.35;
  font-weight: 700;
  color: var(--text-hi);
  margin-bottom: 18px;
  letter-spacing: .5px;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--text-low);
}
.article-meta span { display: inline-flex; align-items: center; gap: 7px; }
.article-meta i { color: var(--gold); font-size: 13px; }

.article-cover { position: relative; }
.article-cover img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  border-radius: 0;
}
.article-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(19,17,16,0) 60%, rgba(19,17,16,.5));
}

.article-body { padding: 36px 44px 44px; font-size: 16px; line-height: 1.9; color: var(--text-mid); }
.article-body h2 {
  font-family: var(--font-serif);
  font-size: 24px;
  color: var(--text-hi);
  margin: 36px 0 16px;
  padding-left: 16px;
  border-left: 3px solid var(--gold);
  line-height: 1.4;
}
.article-body h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--text-hi);
  margin: 28px 0 14px;
  line-height: 1.4;
}
.article-body p { margin-bottom: 18px; }
.article-body ul, .article-body ol { margin-bottom: 18px; padding-left: 20px; list-style-position: outside; }
.article-body li { margin-bottom: 8px; }
.article-body li::marker { color: var(--gold); }
.article-body img { margin: 24px 0; border: 1px solid var(--border); }
.article-body blockquote {
  border-left: 3px solid var(--gold);
  background: rgba(212, 165, 74, .07);
  padding: 16px 24px;
  margin: 24px 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-hi);
  font-style: italic;
}
.article-body a { text-decoration: underline; text-underline-offset: 4px; }
.article-body a:hover { color: var(--gold-light); }

.not-found {
  text-align: center;
  padding: 80px 30px;
}
.not-found i {
  font-size: 52px;
  color: var(--text-low);
  margin-bottom: 20px;
  display: block;
}
.not-found h2 {
  font-size: 28px;
  font-family: var(--font-serif);
  color: var(--text-hi);
  margin-bottom: 12px;
  border-left: none;
  padding-left: 0;
}
.not-found p { color: var(--text-low); margin-bottom: 26px; }

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 20px 44px 36px;
  border-top: 1px solid var(--border);
}
.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 14px;
  font-size: 13px;
  color: var(--text-mid);
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--border-light);
  border-radius: 999px;
  transition: var(--transition);
}
.tag-chip:hover { border-color: var(--gold); color: var(--gold); }

.related-section { padding: 64px 0 40px; }
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.section-head h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  color: var(--text-hi);
  position: relative;
  padding-bottom: 12px;
}
.section-head h2::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 44px;
  height: 3px;
  background: var(--gold);
  border-radius: 2px;
}
.section-link {
  font-size: 14px;
  color: var(--text-mid);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border-light);
  padding: 8px 16px;
  border-radius: 999px;
  transition: var(--transition);
}
.section-link:hover { color: var(--gold); border-color: var(--gold); transform: translateX(3px); }

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-light);
}
.related-card .card-media { position: relative; overflow: hidden; }
.related-card .card-media img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 0;
  transition: transform .5s ease;
}
.related-card:hover .card-media img { transform: scale(1.05); }
.related-card .card-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(19,17,16,0) 50%, rgba(19,17,16,.35));
}
.related-card .card-body { padding: 22px 24px 26px; flex: 1; display: flex; flex-direction: column; }
.related-card .card-body .badge { align-self: flex-start; margin-bottom: 14px; }
.related-card h3 { font-size: 17px; line-height: 1.45; font-weight: 700; margin-bottom: 10px; }
.related-card h3 a { color: var(--text-hi); }
.related-card h3 a:hover { color: var(--gold); }
.related-card p { font-size: 14px; color: var(--text-low); line-height: 1.65; }

.faq-section { padding: 56px 0 40px; }
.faq-section .section-head { margin-bottom: 32px; }
.faq-list { display: flex; flex-direction: column; gap: 16px; max-width: 860px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
  overflow: hidden;
}
.faq-item:hover { border-color: var(--border-light); }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-hi);
  transition: var(--transition);
  list-style: none;
  line-height: 1.5;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 13px;
  color: var(--gold);
  transition: transform .3s ease;
  flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(180deg); }
.faq-item[open] summary { color: var(--gold); border-bottom: 1px solid var(--border); }
.faq-answer {
  padding: 16px 24px 22px;
  font-size: 15px;
  color: var(--text-mid);
  line-height: 1.8;
}
.faq-answer p:last-child { margin-bottom: 0; }

.cta-section {
  margin: 40px 0 0;
  padding: 72px 0;
  background-size: cover;
  background-position: center;
  position: relative;
  border-top: 3px solid var(--gold);
  border-bottom: 3px solid var(--gold);
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(19, 17, 16, .88), rgba(27, 24, 21, .76));
}
.cta-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}
.cta-inner h2 {
  font-family: var(--font-serif);
  font-size: 30px;
  color: var(--text-hi);
  margin-bottom: 14px;
  line-height: 1.4;
}
.cta-inner p {
  font-size: 16px;
  color: var(--text-mid);
  margin-bottom: 30px;
}

.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  padding: 52px 0 0;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 42px;
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-low);
  margin-top: 18px;
  max-width: 320px;
  line-height: 1.8;
}
.footer-col h4 {
  font-size: 15px;
  color: var(--text-hi);
  margin-bottom: 18px;
  letter-spacing: .5px;
  font-weight: 700;
}
.footer-col a {
  display: block;
  padding: 5px 0;
  font-size: 14px;
  color: var(--text-low);
}
.footer-col a:hover { color: var(--gold); padding-left: 6px; }
.footer-col p {
  font-size: 14px;
  color: var(--text-low);
  line-height: 2;
  margin: 0;
}
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-low);
}

@media (max-width: 1024px) {
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .article-body { padding: 30px 30px 36px; }
  .article-header { padding: 32px 30px 22px; }
  .article-tags { padding: 18px 30px 30px; }
  .article-title { font-size: 30px; }
}

@media (max-width: 960px) {
  .sidebar { display: none; }
  .main-panel { margin-left: 0; }
  .mobile-header { display: flex; }
  .drawer-overlay.show { display: block; }
  .mobile-drawer { display: flex; }
  .page-content { padding-top: 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .article-title { font-size: 26px; }
  .article-cover img { height: 260px; }
  .related-grid { grid-template-columns: 1fr; }
  .faq-item summary { font-size: 15px; padding: 18px 20px; }
  .cta-section { padding: 52px 0; }
  .cta-inner h2 { font-size: 24px; }
  .article-body { padding: 24px 20px 30px; }
  .article-header { padding: 26px 20px 18px; }
  .article-tags { padding: 16px 20px 26px; }
  .article-meta { gap: 14px; }
}

@media (max-width: 520px) {
  .breadcrumb { font-size: 13px; }
  .article-title { font-size: 22px; }
  .article-cover img { height: 210px; }
  .article-meta { flex-direction: column; align-items: flex-start; gap: 8px; }
  .article-body { font-size: 15px; line-height: 1.85; }
  .article-body h2 { font-size: 21px; }
  .article-body h3 { font-size: 18px; }
  .section-head h2 { font-size: 22px; }
  .section-link { font-size: 13px; padding: 6px 12px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .mobile-header { height: 58px; padding: 0 14px; }
  .mobile-drawer { width: 82%; max-width: 310px; }
  .mt-20 { margin-top: 20px; }
}