/* roulang page: index */
:root {
        --color-primary: #1C2A2E;
        --color-accent: #C9A45B;
        --color-accent-hover: #B8964E;
        --color-secondary: #2F4F4A;
        --color-bg: #F7F3EC;
        --color-surface: #FFFFFF;
        --color-text: #253238;
        --color-muted: #6B7478;
        --color-line: #E5DED2;
        --color-risk: #A34A3F;
        --radius-sm: 8px;
        --radius-md: 12px;
        --radius-lg: 16px;
        --shadow-sm: 0 2px 8px rgba(28,42,46,.06);
        --shadow-md: 0 8px 24px rgba(28,42,46,.1);
        --shadow-lg: 0 12px 28px rgba(28,42,46,.12);
        --shadow-dark: 0 4px 16px rgba(0,0,0,.18);
        --font-sans: "Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
        --container: 1200px;
        --transition: all .25s 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(--color-text);
        background: var(--color-bg);
        min-height: 100vh;
    }
    a { text-decoration: none; color: inherit; transition: var(--transition); }
    img { display: block; max-width: 100%; height: auto; }
    ul,ol { list-style: none; }
    button,input,select,textarea { font-family: inherit; font-size: inherit; }
    :focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }

    .container { max-width: var(--container); margin: 0 auto; padding: 0 16px; }
    .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

    /* ============ Header / Navigation ============ */
    .site-header {
        position: sticky; top: 0; z-index: 1000;
        background: var(--color-primary);
        border-bottom: 1px solid rgba(255,255,255,.08);
        height: 68px; display: flex; align-items: center;
    }
    .site-header .container { display: flex; align-items: center; justify-content: space-between; width: 100%; }
    .brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; font-size: 20px; letter-spacing: .5px; }
    .brand-icon { width: 38px; height: 38px; border-radius: 8px; background: linear-gradient(135deg, var(--color-accent), #E3C98E); display: flex; align-items: center; justify-content: center; color: var(--color-primary); font-weight: 800; font-size: 18px; flex-shrink: 0; }
    .brand-text { color: #fff; }
    .nav-toggle { display: none; background: none; border: 1px solid rgba(255,255,255,.25); color: #fff; width: 48px; height: 48px; border-radius: 8px; cursor: pointer; font-size: 24px; line-height: 1; align-items: center; justify-content: center; transition: var(--transition); }
    .nav-toggle:hover { background: rgba(255,255,255,.08); }
    .main-nav { display: flex; align-items: center; gap: 8px; }
    .main-nav a {
        color: rgba(255,255,255,.78); padding: 8px 16px; border-radius: 8px;
        font-size: 15px; font-weight: 500; letter-spacing: .3px; position: relative;
        transition: var(--transition);
    }
    .main-nav a::after {
        content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%);
        width: 0; height: 2px; background: var(--color-accent); border-radius: 2px; transition: var(--transition);
    }
    .main-nav a:hover, .main-nav a.active { color: #fff; }
    .main-nav a:hover::after, .main-nav a.active::after { width: 24px; }
    .main-nav a.active { color: var(--color-accent); }

    /* Mobile nav dropdown */
    .nav-dropdown { display: none; position: absolute; top: 68px; left: 0; right: 0; background: var(--color-primary); border-top: 1px solid rgba(255,255,255,.08); padding: 12px 16px 20px; z-index: 999; }
    .nav-dropdown.open { display: block; }
    .nav-dropdown a { display: block; color: rgba(255,255,255,.8); padding: 12px 8px; border-bottom: 1px solid rgba(255,255,255,.06); font-size: 16px; font-weight: 500; }
    .nav-dropdown a:hover, .nav-dropdown a.active { color: var(--color-accent); }

    /* ============ Hero ============ */
    .hero {
        position: relative; min-height: 620px; display: flex; align-items: center;
        background-image: linear-gradient(135deg, rgba(28,42,46,.94), rgba(28,42,46,.72)), url('/assets/images/b47d24f55b1d9926.webp');
        background-size: cover; background-position: center; color: #fff;
        padding: 80px 0; overflow: hidden;
    }
    .hero .container { display: flex; align-items: center; gap: 48px; width: 100%; }
    .hero-content { flex: 1; max-width: 560px; }
    .hero-badge {
        display: inline-flex; align-items: center; gap: 8px;
        background: rgba(201,164,91,.16); border: 1px solid rgba(201,164,91,.4);
        color: var(--color-accent); padding: 6px 14px; border-radius: 999px;
        font-size: 13px; font-weight: 500; margin-bottom: 20px; letter-spacing: .5px;
    }
    .hero h1 {
        font-size: 42px; line-height: 1.35; font-weight: 700; letter-spacing: .5px;
        color: #fff; margin-bottom: 18px;
    }
    .hero-subtitle {
        font-size: 16px; line-height: 1.8; color: rgba(255,255,255,.82);
        margin-bottom: 32px; max-width: 480px;
    }
    .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
    .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 28px; border-radius: 999px; font-weight: 600; font-size: 15px; letter-spacing: .3px; cursor: pointer; border: none; transition: var(--transition); }
    .btn-primary { background: var(--color-accent); color: var(--color-primary); }
    .btn-primary:hover { background: var(--color-accent-hover); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(201,164,91,.3); }
    .btn-primary:active { transform: translateY(0); }
    .btn-outline-light { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.5); }
    .btn-outline-light:hover { background: rgba(255,255,255,.1); border-color: #fff; transform: translateY(-2px); }
    .hero-visual { flex-shrink: 0; width: 420px; display: flex; flex-direction: column; gap: 16px; }
    .hero-data-card {
        background: rgba(255,255,255,.08); backdrop-filter: blur(6px);
        border: 1px solid rgba(255,255,255,.16); border-radius: var(--radius-md);
        padding: 24px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
    }
    .hero-data-item { text-align: center; }
    .hero-data-value { font-size: 28px; font-weight: 700; color: var(--color-accent); }
    .hero-data-label { font-size: 13px; color: rgba(255,255,255,.7); margin-top: 4px; }
    .hero-note {
        background: rgba(201,164,91,.12); border-left: 3px solid var(--color-accent);
        padding: 12px 16px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        font-size: 13px; color: rgba(255,255,255,.75); line-height: 1.6;
    }

    /* ============ Sections ============ */
    .section { padding: 80px 0; }
    .section-alt { background: var(--color-surface); border-top: 1px solid var(--color-line); border-bottom: 1px solid var(--color-line); }
    .section-dark { background: var(--color-primary); color: #fff; }
    .section-gray { background: #F0EBE1; }
    .section-header { margin-bottom: 40px; }
    .section-header.center { text-align: center; }
    .section-title { font-size: 32px; font-weight: 700; line-height: 1.4; color: var(--color-primary); letter-spacing: .5px; margin-bottom: 10px; }
    .section-title.light { color: #fff; }
    .section-desc { font-size: 15px; color: var(--color-muted); line-height: 1.8; max-width: 640px; }
    .section-desc.light { color: rgba(255,255,255,.7); }
    .section-header.center .section-desc { margin: 0 auto; }
    .section-link { color: var(--color-accent); font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 4px; }
    .section-link:hover { color: var(--color-accent-hover); gap: 8px; }

    /* ============ Stats Bar ============ */
    .stats-bar { padding: 32px 0; background: var(--color-primary); }
    .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
    .stat-item { text-align: center; color: #fff; }
    .stat-number { font-size: 36px; font-weight: 700; color: var(--color-accent); line-height: 1.2; }
    .stat-label { font-size: 14px; color: rgba(255,255,255,.65); margin-top: 6px; }

    /* ============ Cards ============ */
    .card {
        background: var(--color-surface); border: 1px solid var(--color-line);
        border-radius: var(--radius-md); padding: 28px; transition: var(--transition);
        box-shadow: var(--shadow-sm);
    }
    .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
    .card-icon {
        width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center;
        background: rgba(201,164,91,.12); color: var(--color-accent); font-size: 22px; margin-bottom: 16px;
    }
    .card-title { font-size: 20px; font-weight: 700; color: var(--color-primary); margin-bottom: 10px; }
    .card-text { font-size: 14px; color: var(--color-muted); line-height: 1.75; }
    .card-link { display: inline-block; margin-top: 14px; color: var(--color-accent); font-weight: 600; font-size: 14px; }

    /* ============ Asymmetric Grid ============ */
    .asymmetric-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 20px; }
    .asymmetric-grid .card:first-child { grid-row: span 2; }
    .card-lg { padding: 36px; }
    .card-lg .card-title { font-size: 24px; }
    .card-lg .card-text { font-size: 15px; }

    /* ============ Horizontal Scroll Cards ============ */
    .h-scroll { display: flex; gap: 16px; overflow-x: auto; padding-bottom: 16px; scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch; }
    .h-scroll::-webkit-scrollbar { height: 4px; }
    .h-scroll::-webkit-scrollbar-track { background: var(--color-line); border-radius: 4px; }
    .h-scroll::-webkit-scrollbar-thumb { background: var(--color-accent); border-radius: 4px; }
    .h-card {
        min-width: 260px; scroll-snap-align: start; background: var(--color-surface);
        border: 1px solid var(--color-line); border-radius: var(--radius-md);
        overflow: hidden; transition: var(--transition); box-shadow: var(--shadow-sm);
    }
    .h-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
    .h-card-img { height: 160px; background-size: cover; background-position: center; position: relative; }
    .h-card-body { padding: 20px; }
    .h-card-tag { display: inline-block; padding: 3px 10px; border-radius: 999px; background: rgba(201,164,91,.14); color: var(--color-accent); font-size: 12px; font-weight: 600; margin-bottom: 8px; }
    .h-card-title { font-size: 17px; font-weight: 700; color: var(--color-primary); margin-bottom: 6px; }
    .h-card-text { font-size: 13px; color: var(--color-muted); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

    /* ============ Process Steps ============ */
    .process-steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; position: relative; }
    .process-step { text-align: center; }
    .process-step-num {
        width: 52px; height: 52px; border-radius: 50%; background: var(--color-accent);
        color: var(--color-primary); font-weight: 700; font-size: 22px;
        display: flex; align-items: center; justify-content: center; margin: 0 auto 14px;
        box-shadow: 0 4px 12px rgba(201,164,91,.3);
    }
    .process-step h3 { font-size: 16px; font-weight: 700; color: var(--color-primary); margin-bottom: 6px; }
    .process-step p { font-size: 13px; color: var(--color-muted); line-height: 1.6; }
    .process-line { position: absolute; top: 26px; left: 10%; right: 10%; height: 2px; background: var(--color-line); z-index: -1; }

    /* ============ Split Layout ============ */
    .split-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
    .split-img { border-radius: var(--radius-lg); overflow: hidden; background: var(--color-surface); border: 1px solid var(--color-line); height: 320px; background-size: cover; background-position: center; }
    .split-list { margin-top: 20px; display: flex; flex-direction: column; gap: 14px; }
    .split-list-item { display: flex; gap: 12px; align-items: flex-start; }
    .split-list-icon { flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%; background: rgba(47,79,74,.12); color: var(--color-secondary); display: flex; align-items: center; justify-content: center; font-size: 14px; }
    .split-list-item h4 { font-size: 15px; font-weight: 700; color: var(--color-primary); }
    .split-list-item p { font-size: 13px; color: var(--color-muted); }

    /* ============ Safety Check List ============ */
    .safety-section { background: var(--color-primary); color: #fff; }
    .safety-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
    .safety-list { display: flex; flex-direction: column; gap: 14px; }
    .safety-item {
        display: flex; align-items: flex-start; gap: 14px; padding: 16px 18px;
        background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12);
        border-radius: var(--radius-sm); transition: var(--transition);
    }
    .safety-item:hover { background: rgba(255,255,255,.1); }
    .safety-check { flex-shrink: 0; width: 24px; height: 24px; border-radius: 50%; background: var(--color-secondary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 14px; margin-top: 2px; }
    .safety-item h4 { font-size: 15px; font-weight: 700; color: #fff; }
    .safety-item p { font-size: 13px; color: rgba(255,255,255,.65); line-height: 1.6; }
    .safety-progress { background: rgba(255,255,255,.1); border-radius: 8px; height: 8px; margin-top: 8px; overflow: hidden; }
    .safety-progress-bar { background: var(--color-accent); height: 100%; border-radius: 8px; }

    /* ============ News Cards ============ */
    .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .news-card {
        background: var(--color-surface); border: 1px solid var(--color-line);
        border-radius: var(--radius-md); overflow: hidden; transition: var(--transition); box-shadow: var(--shadow-sm);
    }
    .news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
    .news-card-img { height: 180px; background-size: cover; background-position: center; }
    .news-card-body { padding: 20px; }
    .news-card-tag { display: inline-block; padding: 3px 10px; border-radius: 999px; background: rgba(201,164,91,.14); color: var(--color-accent); font-size: 12px; font-weight: 600; margin-bottom: 8px; }
    .news-card h3 { font-size: 17px; font-weight: 700; line-height: 1.45; color: var(--color-primary); margin-bottom: 8px; }
    .news-card p { font-size: 13px; color: var(--color-muted); line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    .news-card-meta { display: flex; gap: 12px; margin-top: 12px; font-size: 12px; color: #9AA0A4; }
    .news-empty { grid-column: 1 / -1; text-align: center; padding: 40px 20px; color: var(--color-muted); background: var(--color-surface); border: 1px dashed var(--color-line); border-radius: var(--radius-md); }

    /* ============ Market Timeline ============ */
    .market-timeline { display: flex; flex-direction: column; gap: 16px; position: relative; padding-left: 24px; }
    .market-timeline::before { content: ''; position: absolute; left: 8px; top: 8px; bottom: 8px; width: 2px; background: var(--color-line); }
    .market-item { position: relative; padding: 16px 18px; background: var(--color-surface); border: 1px solid var(--color-line); border-radius: var(--radius-sm); }
    .market-item::before { content: ''; position: absolute; left: -20px; top: 22px; width: 10px; height: 10px; border-radius: 50%; background: var(--color-accent); }
    .market-item-date { font-size: 13px; color: var(--color-accent); font-weight: 600; }
    .market-item h4 { font-size: 15px; font-weight: 700; color: var(--color-primary); margin: 4px 0 4px; }
    .market-item p { font-size: 13px; color: var(--color-muted); }

    /* ============ Fee Tables ============ */
    .fee-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .fee-card { background: var(--color-surface); border: 1px solid var(--color-line); border-radius: var(--radius-md); padding: 24px; text-align: center; transition: var(--transition); box-shadow: var(--shadow-sm); }
    .fee-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
    .fee-card.highlight { border-color: var(--color-accent); box-shadow: 0 8px 24px rgba(201,164,91,.15); }
    .fee-card-type { font-size: 13px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; color: var(--color-muted); margin-bottom: 8px; }
    .fee-card-rate { font-size: 28px; font-weight: 700; color: var(--color-primary); margin-bottom: 4px; }
    .fee-card-desc { font-size: 13px; color: var(--color-muted); line-height: 1.6; }

    /* ============ Education Cards ============ */
    .edu-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .edu-card { background: var(--color-surface); border: 1px solid var(--color-line); border-radius: var(--radius-md); overflow: hidden; transition: var(--transition); box-shadow: var(--shadow-sm); }
    .edu-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
    .edu-card-img { height: 200px; background-size: cover; background-position: center; }
    .edu-card-body { padding: 20px; }
    .edu-card-title { font-size: 17px; font-weight: 700; color: var(--color-primary); margin-bottom: 8px; }
    .edu-card-text { font-size: 13px; color: var(--color-muted); line-height: 1.65; }

    /* ============ FAQ ============ */
    .faq-list { display: flex; flex-direction: column; gap: 0; }
    .faq-item { border-bottom: 1px solid var(--color-line); }
    .faq-item:first-child { border-top: 1px solid var(--color-line); }
    .faq-question {
        width: 100%; background: none; border: none; cursor: pointer;
        padding: 18px 8px; display: flex; align-items: center; justify-content: space-between;
        font-size: 16px; font-weight: 600; color: var(--color-primary); text-align: left;
        transition: var(--transition);
    }
    .faq-question:hover { color: var(--color-accent); }
    .faq-question .icon { flex-shrink: 0; font-size: 20px; transition: transform .3s ease; color: var(--color-muted); }
    .faq-item.open .faq-question .icon { transform: rotate(45deg); color: var(--color-accent); }
    .faq-answer { max-height: 0; overflow: hidden; transition: max-height .35s ease, padding .35s ease; padding: 0 8px; }
    .faq-item.open .faq-answer { max-height: 200px; padding-bottom: 18px; }
    .faq-answer p { font-size: 15px; color: var(--color-muted); line-height: 1.8; }

    /* ============ Risk Warning Banner ============ */
    .risk-banner {
        background: #FBF0ED; border: 1px solid #E8CDC5; border-left: 4px solid var(--color-risk);
        padding: 20px 24px; border-radius: var(--radius-sm);
    }
    .risk-banner h3 { font-size: 15px; font-weight: 700; color: var(--color-risk); margin-bottom: 6px; }
    .risk-banner p { font-size: 13px; color: #6B4F4A; line-height: 1.7; }

    /* ============ CTA Form ============ */
    .cta-section { background: var(--color-primary); color: #fff; }
    .cta-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
    .cta-info h2 { font-size: 30px; font-weight: 700; line-height: 1.4; margin-bottom: 12px; }
    .cta-info p { font-size: 15px; color: rgba(255,255,255,.7); line-height: 1.8; }
    .cta-form { background: #fff; border-radius: var(--radius-lg); padding: 28px; box-shadow: var(--shadow-dark); }
    .form-group { margin-bottom: 16px; }
    .form-label { display: block; font-size: 14px; font-weight: 600; color: var(--color-primary); margin-bottom: 6px; }
    .form-input {
        width: 100%; padding: 12px 14px; background: #fff; border: 1px solid var(--color-line);
        border-radius: 8px; font-size: 15px; color: var(--color-text); transition: var(--transition);
    }
    .form-input:focus { outline: 2px solid var(--color-accent); outline-offset: 0; border-color: var(--color-accent); }
    .form-input.error { border-color: var(--color-risk); }
    .btn-submit { width: 100%; padding: 14px; background: var(--color-accent); color: var(--color-primary); border: none; border-radius: 8px; font-weight: 700; font-size: 16px; cursor: pointer; transition: var(--transition); }
    .btn-submit:hover { background: var(--color-accent-hover); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(201,164,91,.3); }

    /* ============ Trust Badges ============ */
    .trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .trust-item { text-align: center; padding: 20px; }
    .trust-icon { font-size: 32px; color: var(--color-accent); margin-bottom: 10px; }
    .trust-item h4 { font-size: 15px; font-weight: 700; color: var(--color-primary); margin-bottom: 4px; }
    .trust-item p { font-size: 13px; color: var(--color-muted); }

    /* ============ Pre-Footer Banners ============ */
    .prefooter-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .prefooter-card { background: var(--color-surface); border: 1px solid var(--color-line); border-radius: var(--radius-md); padding: 22px; transition: var(--transition); }
    .prefooter-card:hover { border-color: var(--color-accent); box-shadow: var(--shadow-md); transform: translateY(-2px); }
    .prefooter-card h4 { font-size: 15px; font-weight: 700; color: var(--color-primary); margin-bottom: 6px; }
    .prefooter-card p { font-size: 13px; color: var(--color-muted); line-height: 1.6; }

    /* ============ Footer ============ */
    .site-footer { background: var(--color-primary); color: rgba(255,255,255,.8); padding: 56px 0 28px; }
    .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 32px; }
    .footer-brand h3 { font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 10px; }
    .footer-brand p { font-size: 13px; color: rgba(255,255,255,.6); line-height: 1.7; max-width: 280px; }
    .footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 14px; }
    .footer-col a { display: block; font-size: 13px; color: rgba(255,255,255,.6); padding: 5px 0; transition: var(--transition); }
    .footer-col a:hover { color: var(--color-accent); padding-left: 4px; }
    .footer-col p { font-size: 13px; color: rgba(255,255,255,.6); padding: 4px 0; }
    .footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding-top: 20px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
    .footer-bottom p { font-size: 12px; color: rgba(255,255,255,.45); }
    .footer-bottom .legal-links { display: flex; gap: 16px; }
    .footer-bottom .legal-links a { font-size: 12px; color: rgba(255,255,255,.5); }
    .footer-bottom .legal-links a:hover { color: var(--color-accent); }

    /* ============ Responsive ============ */
    @media (max-width: 1024px) {
        .hero { min-height: 520px; padding: 60px 0; }
        .hero h1 { font-size: 34px; }
        .hero-visual { width: 340px; }
        .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
        .process-steps { grid-template-columns: repeat(3, 1fr); gap: 28px; }
        .process-line { display: none; }
        .news-grid { grid-template-columns: repeat(2, 1fr); }
        .fee-grid { grid-template-columns: 1fr; }
        .edu-grid { grid-template-columns: repeat(2, 1fr); }
        .prefooter-grid { grid-template-columns: repeat(2, 1fr); }
        .split-layout { grid-template-columns: 1fr; gap: 32px; }
        .safety-layout { grid-template-columns: 1fr; gap: 32px; }
        .cta-layout { grid-template-columns: 1fr; gap: 32px; }
        .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
    }

    @media (max-width: 768px) {
        .main-nav { display: none; }
        .nav-toggle { display: flex; }
        .hero { min-height: auto; padding: 56px 0; }
        .hero .container { flex-direction: column; gap: 32px; }
        .hero h1 { font-size: 30px; }
        .hero-visual { width: 100%; }
        .asymmetric-grid { grid-template-columns: 1fr; }
        .asymmetric-grid .card:first-child { grid-row: auto; }
        .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
        .stat-number { font-size: 28px; }
        .process-steps { grid-template-columns: 1fr 1fr; gap: 24px; }
        .news-grid { grid-template-columns: 1fr; }
        .edu-grid { grid-template-columns: 1fr; }
        .trust-grid { grid-template-columns: 1fr; }
        .prefooter-grid { grid-template-columns: 1fr; }
        .section { padding: 56px 0; }
        .section-title { font-size: 26px; }
        .footer-grid { grid-template-columns: 1fr; gap: 24px; }
        .footer-bottom { flex-direction: column; text-align: center; }
    }

    @media (max-width: 520px) {
        .hero h1 { font-size: 26px; }
        .hero-subtitle { font-size: 14px; }
        .hero-actions { flex-direction: column; }
        .hero-actions .btn { width: 100%; }
        .btn { padding: 12px 20px; font-size: 14px; }
        .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
        .stat-number { font-size: 24px; }
        .stat-label { font-size: 12px; }
        .card { padding: 20px; }
        .card-lg { padding: 24px; }
        .card-title { font-size: 18px; }
        .card-lg .card-title { font-size: 20px; }
        .h-card { min-width: 220px; }
        .process-steps { grid-template-columns: 1fr; }
        .section { padding: 44px 0; }
        .section-title { font-size: 22px; }
        .btn-submit { font-size: 15px; }
        .container { padding: 0 12px; }
    }

/* roulang page: article */
:root {
        --color-primary: #1C2A2E;
        --color-accent: #C9A45B;
        --color-accent-hover: #B8964E;
        --color-secondary: #2F4F4A;
        --color-bg: #F7F3EC;
        --color-surface: #FFFFFF;
        --color-text: #253238;
        --color-muted: #6B7478;
        --color-line: #E5DED2;
        --color-risk: #A34A3F;
        --radius-sm: 8px;
        --radius-md: 12px;
        --radius-lg: 16px;
        --shadow-sm: 0 2px 8px rgba(28,42,46,.06);
        --shadow-md: 0 8px 24px rgba(28,42,46,.1);
        --shadow-lg: 0 12px 28px rgba(28,42,46,.12);
        --shadow-dark: 0 4px 16px rgba(0,0,0,.18);
        --font-sans: "Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
        --container: 1200px;
        --transition: all .25s 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(--color-text);
        background: var(--color-bg);
        min-height: 100vh;
    }
    a { text-decoration: none; color: inherit; transition: var(--transition); }
    img { display: block; max-width: 100%; height: auto; }
    button,input,select,textarea { font-family: inherit; font-size: inherit; }
    .container { max-width: var(--container); margin: 0 auto; padding: 0 16px; }

    /* ============ Header / Navigation ============ */
    .site-header {
        position: sticky; top: 0; z-index: 1000;
        background: var(--color-primary);
        border-bottom: 1px solid rgba(255,255,255,.08);
        height: 68px; display: flex; align-items: center;
    }
    .site-header .container { display: flex; align-items: center; justify-content: space-between; width: 100%; }
    .brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; font-size: 20px; letter-spacing: .5px; }
    .brand-icon { width: 38px; height: 38px; border-radius: 8px; background: linear-gradient(135deg, var(--color-accent), #E3C98E); display: flex; align-items: center; justify-content: center; color: var(--color-primary); font-weight: 800; font-size: 18px; flex-shrink: 0; }
    .brand-text { color: #fff; }
    .nav-toggle { display: none; background: none; border: 1px solid rgba(255,255,255,.25); color: #fff; width: 48px; height: 48px; border-radius: 8px; cursor: pointer; font-size: 24px; line-height: 1; align-items: center; justify-content: center; transition: var(--transition); }
    .nav-toggle:hover { background: rgba(255,255,255,.08); }
    .main-nav { display: flex; align-items: center; gap: 8px; }
    .main-nav a {
        color: rgba(255,255,255,.78); padding: 8px 16px; border-radius: 8px;
        font-size: 15px; font-weight: 500; letter-spacing: .3px; position: relative;
        transition: var(--transition);
    }
    .main-nav a::after {
        content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%);
        width: 0; height: 2px; background: var(--color-accent); border-radius: 2px; transition: var(--transition);
    }
    .main-nav a:hover, .main-nav a.active { color: #fff; }
    .main-nav a:hover::after, .main-nav a.active::after { width: 24px; }
    .main-nav a.active { color: var(--color-accent); }
    .nav-dropdown { display: none; position: absolute; top: 68px; left: 0; right: 0; background: var(--color-primary); border-top: 1px solid rgba(255,255,255,.08); padding: 12px 16px 20px; z-index: 999; }
    .nav-dropdown.open { display: block; }
    .nav-dropdown a { display: block; color: rgba(255,255,255,.8); padding: 12px 8px; border-bottom: 1px solid rgba(255,255,255,.06); font-size: 16px; font-weight: 500; }
    .nav-dropdown a:hover, .nav-dropdown a.active { color: var(--color-accent); }

    /* ============ Breadcrumb ============ */
    .breadcrumb-wrap {
        background: var(--color-surface);
        border-bottom: 1px solid var(--color-line);
        padding: 14px 0;
    }
    .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--color-muted); flex-wrap: wrap; }
    .breadcrumb a { color: var(--color-muted); }
    .breadcrumb a:hover { color: var(--color-accent); }
    .breadcrumb .sep { color: var(--color-line); }
    .breadcrumb .current { color: var(--color-text); font-weight: 500; }

    /* ============ Article Header ============ */
    .article-hero {
        background: var(--color-surface);
        border-bottom: 1px solid var(--color-line);
        padding: 48px 0 40px;
    }
    .article-meta-top { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
    .article-cat-badge {
        display: inline-flex; align-items: center; gap: 6px;
        background: rgba(201,164,91,.14); color: #8A6A2F;
        padding: 4px 14px; border-radius: 999px; font-size: 13px; font-weight: 600;
    }
    .article-date { font-size: 13px; color: var(--color-muted); }
    .article-author { font-size: 13px; color: var(--color-muted); }
    .article-hero h1 {
        font-size: 34px; line-height: 1.45; font-weight: 700; letter-spacing: .3px;
        color: var(--color-primary); margin-bottom: 16px; max-width: 800px;
    }
    .article-hero .article-summary {
        font-size: 16px; line-height: 1.8; color: var(--color-muted); max-width: 720px;
    }

    /* ============ Article Body ============ */
    .article-body-section {
        background: var(--color-surface);
        padding: 48px 0 56px;
    }
    .article-body {
        max-width: 800px;
        font-size: 16px;
        line-height: 1.9;
        color: var(--color-text);
    }
    .article-body h2 {
        font-size: 26px; font-weight: 700; color: var(--color-primary);
        margin: 40px 0 16px; line-height: 1.4;
        padding-left: 14px; border-left: 4px solid var(--color-accent);
    }
    .article-body h3 {
        font-size: 20px; font-weight: 600; color: var(--color-primary);
        margin: 32px 0 12px; line-height: 1.5;
    }
    .article-body p { margin-bottom: 16px; }
    .article-body ul, .article-body ol { margin: 0 0 20px 24px; padding: 0; }
    .article-body li { margin-bottom: 8px; }
    .article-body blockquote {
        margin: 24px 0; padding: 18px 20px;
        background: #FAF7F1; border-left: 4px solid var(--color-accent);
        border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        color: var(--color-muted); font-size: 15px;
    }
    .article-body img {
        width: 100%; border-radius: var(--radius-md);
        margin: 24px 0; box-shadow: var(--shadow-sm);
    }
    .article-body table {
        width: 100%; border-collapse: collapse; margin: 24px 0;
        font-size: 14px; border-radius: var(--radius-sm); overflow: hidden;
    }
    .article-body th, .article-body td {
        padding: 12px 16px; border: 1px solid var(--color-line);
        text-align: left;
    }
    .article-body th { background: var(--color-bg); font-weight: 600; color: var(--color-primary); }
    .article-empty-state {
        text-align: center; padding: 80px 20px; color: var(--color-muted);
    }
    .article-empty-state h2 { font-size: 24px; color: var(--color-primary); margin-bottom: 12px; }
    .article-empty-state a { display: inline-block; margin-top: 16px; color: var(--color-accent); font-weight: 600; border-bottom: 2px solid var(--color-accent); }

    /* ============ Tags & Share ============ */
    .article-tags-section { background: var(--color-surface); padding: 0 0 48px; }
    .article-tags-share {
        max-width: 800px; border-top: 1px solid var(--color-line); padding-top: 28px;
        display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px;
    }
    .tag-list { display: flex; gap: 10px; flex-wrap: wrap; }
    .tag-link {
        display: inline-block; padding: 5px 14px; background: var(--color-bg);
        border-radius: 999px; font-size: 13px; color: var(--color-muted);
        border: 1px solid var(--color-line); transition: var(--transition);
    }
    .tag-link:hover { background: rgba(201,164,91,.12); border-color: var(--color-accent); color: #8A6A2F; }
    .share-btns { display: flex; gap: 10px; align-items: center; }
    .share-btns span { font-size: 13px; color: var(--color-muted); }
    .share-btn {
        width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
        background: var(--color-bg); border: 1px solid var(--color-line); cursor: pointer;
        font-size: 15px; color: var(--color-muted); transition: var(--transition);
    }
    .share-btn:hover { background: rgba(201,164,91,.12); border-color: var(--color-accent); color: #8A6A2F; }

    /* ============ Related Articles ============ */
    .related-section {
        background: var(--color-bg); padding: 56px 0 64px;
    }
    .section-heading { margin-bottom: 32px; }
    .section-heading h2 {
        font-size: 28px; font-weight: 700; color: var(--color-primary);
        margin-bottom: 8px; letter-spacing: .3px;
    }
    .section-heading p { font-size: 14px; color: var(--color-muted); margin: 0; }
    .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .related-card {
        background: var(--color-surface); border-radius: var(--radius-md);
        overflow: hidden; box-shadow: var(--shadow-sm); transition: var(--transition);
        display: block;
    }
    .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
    .related-thumb { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
    .related-card-body { padding: 18px 20px 20px; }
    .related-card-tag { font-size: 12px; color: #8A6A2F; font-weight: 600; margin-bottom: 8px; }
    .related-card-title { font-size: 17px; font-weight: 600; color: var(--color-primary); line-height: 1.5; margin-bottom: 8px; }
    .related-card-summary { font-size: 13px; color: var(--color-muted); line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 10px; }
    .related-card-time { font-size: 12px; color: #9A9A9A; }

    /* ============ CTA ============ */
    .article-cta-section { background: var(--color-surface); padding: 56px 0 64px; }
    .article-cta-card {
        background: var(--color-primary); border-radius: var(--radius-lg);
        padding: 40px 36px; display: flex; align-items: center; justify-content: space-between;
        gap: 24px; flex-wrap: wrap; position: relative; overflow: hidden;
    }
    .article-cta-card::before {
        content: ''; position: absolute; top: -40px; right: -20px; width: 200px; height: 200px;
        background: rgba(201,164,91,.08); border-radius: 50%;
    }
    .article-cta-text h3 { font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 8px; }
    .article-cta-text p { font-size: 14px; color: rgba(255,255,255,.72); margin: 0; max-width: 420px; }
    .article-cta-actions { display: flex; gap: 12px; flex-wrap: wrap; position: relative; z-index: 1; }
    .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 28px; border-radius: 999px; font-weight: 600; font-size: 15px; letter-spacing: .3px; cursor: pointer; border: none; transition: var(--transition); }
    .btn-primary { background: var(--color-accent); color: var(--color-primary); }
    .btn-primary:hover { background: var(--color-accent-hover); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(201,164,91,.3); }
    .btn-primary:active { transform: translateY(0); }
    .btn-outline-light { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.5); }
    .btn-outline-light:hover { background: rgba(255,255,255,.1); border-color: #fff; transform: translateY(-2px); }

    /* ============ Risk Disclaimer ============ */
    .risk-disclaimer-section { background: var(--color-surface); padding: 0 0 56px; }
    .risk-disclaimer {
        max-width: 800px; border: 1px solid #E8D5CC; background: #FBF7F4;
        border-radius: var(--radius-md); padding: 20px 24px; font-size: 13px;
        color: #8A6A5F; line-height: 1.75;
    }
    .risk-disclaimer strong { color: var(--color-risk); }

    /* ============ Footer ============ */
    .site-footer { background: var(--color-primary); color: rgba(255,255,255,.78); margin-top: 0; }
    .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; padding: 56px 0 40px; }
    .footer-brand h3 { color: #fff; font-size: 20px; font-weight: 700; margin-bottom: 12px; }
    .footer-brand p { font-size: 13px; line-height: 1.8; color: rgba(255,255,255,.6); max-width: 320px; }
    .footer-col h4 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 16px; }
    .footer-col a { display: block; color: rgba(255,255,255,.65); font-size: 13px; padding: 6px 0; transition: var(--transition); }
    .footer-col a:hover { color: var(--color-accent); }
    .footer-col p { font-size: 13px; color: rgba(255,255,255,.65); margin: 6px 0; }
    .footer-bottom {
        border-top: 1px solid rgba(255,255,255,.08); padding: 18px 0;
        display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
        font-size: 12px; color: rgba(255,255,255,.5);
    }
    .legal-links { display: flex; gap: 20px; }
    .legal-links a { color: rgba(255,255,255,.5); font-size: 12px; }
    .legal-links a:hover { color: var(--color-accent); }

    /* ============ Responsive ============ */
    @media (max-width: 1024px) {
        .related-grid { grid-template-columns: repeat(2, 1fr); }
        .hero h1 { font-size: 36px; }
    }
    @media (max-width: 768px) {
        .main-nav { display: none; }
        .nav-toggle { display: flex; }
        .article-hero h1 { font-size: 26px; }
        .article-hero { padding: 32px 0 28px; }
        .article-body-section { padding: 32px 0 40px; }
        .article-body { font-size: 15px; }
        .article-body h2 { font-size: 22px; }
        .article-body h3 { font-size: 18px; }
        .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; padding: 40px 0 28px; }
        .article-cta-card { padding: 28px 20px; }
        .article-cta-actions { width: 100%; }
        .article-cta-actions .btn { flex: 1; }
        .article-tags-share { flex-direction: column; align-items: flex-start; }
    }
    @media (max-width: 520px) {
        .related-grid { grid-template-columns: 1fr; }
        .footer-grid { grid-template-columns: 1fr; gap: 20px; }
        .article-hero h1 { font-size: 22px; }
        .hero h1 { font-size: 30px; }
        .btn { padding: 11px 20px; font-size: 14px; }
        .article-cta-card { flex-direction: column; align-items: flex-start; }
    }

/* roulang page: category1 */
:root {
    --color-primary: #1C2A2E;
    --color-accent: #C9A45B;
    --color-accent-hover: #B8964E;
    --color-secondary: #2F4F4A;
    --color-bg: #F7F3EC;
    --color-surface: #FFFFFF;
    --color-text: #253238;
    --color-muted: #6B7478;
    --color-line: #E5DED2;
    --color-risk: #A34A3F;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow-sm: 0 2px 8px rgba(28,42,46,.06);
    --shadow-md: 0 8px 24px rgba(28,42,46,.1);
    --shadow-lg: 0 12px 28px rgba(28,42,46,.12);
    --shadow-dark: 0 4px 16px rgba(0,0,0,.18);
    --font-sans: "Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
    --container: 1200px;
    --transition: all .25s ease;
}
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.75;
    color: var(--color-text);
    background: var(--color-bg);
    min-height: 100vh;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { display: block; max-width: 100%; height: auto; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 16px; width: 100%; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

/* ============ Header/Navigation ============ */
.site-header {
    position: sticky; top: 0; z-index: 1000;
    background: var(--color-primary);
    border-bottom: 1px solid rgba(255,255,255,.08);
    height: 68px; display: flex; align-items: center;
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; font-size: 20px; letter-spacing: .5px; }
.brand-icon {
    width: 38px; height: 38px; border-radius: 8px;
    background: linear-gradient(135deg, var(--color-accent), #E3C98E);
    display: flex; align-items: center; justify-content: center;
    color: var(--color-primary); font-weight: 800; font-size: 18px; flex-shrink: 0;
}
.brand-text { color: #fff; }
.nav-toggle {
    display: none; background: none; border: 1px solid rgba(255,255,255,.25);
    color: #fff; width: 48px; height: 48px; border-radius: 8px; cursor: pointer;
    font-size: 24px; line-height: 1; align-items: center; justify-content: center;
    transition: var(--transition);
}
.nav-toggle:hover { background: rgba(255,255,255,.08); }
.main-nav { display: flex; align-items: center; gap: 8px; }
.main-nav a {
    color: rgba(255,255,255,.78); padding: 8px 16px; border-radius: 8px;
    font-size: 15px; font-weight: 500; letter-spacing: .3px; position: relative;
    transition: var(--transition);
}
.main-nav a::after {
    content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%);
    width: 0; height: 2px; background: var(--color-accent); border-radius: 2px; transition: var(--transition);
}
.main-nav a:hover, .main-nav a.active { color: #fff; }
.main-nav a:hover::after, .main-nav a.active::after { width: 24px; }
.main-nav a.active { color: var(--color-accent); }
.nav-dropdown {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    background: var(--color-primary); border-top: 1px solid rgba(255,255,255,.08);
    padding: 12px 16px 20px; z-index: 999;
}
.nav-dropdown.open { display: block; }
.nav-dropdown a {
    display: block; color: rgba(255,255,255,.8); padding: 12px 8px;
    border-bottom: 1px solid rgba(255,255,255,.06); font-size: 16px; font-weight: 500;
}
.nav-dropdown a:hover, .nav-dropdown a.active { color: var(--color-accent); }

/* ============ Buttons ============ */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 13px 28px; border-radius: 999px; font-weight: 600; font-size: 15px;
    letter-spacing: .3px; cursor: pointer; border: none; transition: var(--transition);
}
.btn-primary { background: var(--color-accent); color: var(--color-primary); }
.btn-primary:hover { background: var(--color-accent-hover); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(201,164,91,.3); }
.btn-primary:active { transform: translateY(0); }
.btn-outline-light { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.5); }
.btn-outline-light:hover { background: rgba(255,255,255,.1); border-color: #fff; transform: translateY(-2px); }
.btn-outline-dark { background: transparent; color: var(--color-primary); border: 1px solid var(--color-primary); }
.btn-outline-dark:hover { background: rgba(28,42,46,.06); border-color: var(--color-primary); transform: translateY(-2px); }

/* ============ Category Page Banner ============ */
.page-banner {
    position: relative;
    padding: 52px 0;
    background-image: linear-gradient(135deg, rgba(28,42,46,.92), rgba(28,42,46,.72)), url('/assets/images/902ee2de756a63e3.webp');
    background-size: cover;
    background-position: center;
    color: #fff;
    overflow: hidden;
}
.page-banner .container { position: relative; z-index: 2; }
.breadcrumb-nav {
    display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
    font-size: 13px; color: rgba(255,255,255,.65); margin-bottom: 16px;
}
.breadcrumb-nav a { color: rgba(255,255,255,.75); }
.breadcrumb-nav a:hover { color: var(--color-accent); }
.breadcrumb-nav .separator { color: rgba(255,255,255,.4); }
.breadcrumb-nav .current { color: var(--color-accent); font-weight: 500; }
.page-banner h1 {
    font-size: 38px; line-height: 1.35; font-weight: 700; letter-spacing: .5px;
    color: #fff; margin-bottom: 14px;
}
.page-banner-subtitle {
    font-size: 16px; line-height: 1.8; color: rgba(255,255,255,.82);
    max-width: 640px;
}

/* ============ Section Common ============ */
.section { padding: 72px 0; }
.section-alt { background: var(--color-surface); }
.section-dark { background: var(--color-primary); color: #fff; }
.section-title { font-size: 28px; font-weight: 700; line-height: 1.4; color: inherit; margin-bottom: 12px; letter-spacing: .3px; }
.section-subtitle { font-size: 15px; color: var(--color-muted); line-height: 1.7; max-width: 680px; margin-bottom: 28px; }
.section-dark .section-subtitle { color: rgba(255,255,255,.7); }
.section-tag {
    display: inline-flex; align-items: center; gap: 6px;
    background: rgba(201,164,91,.14); border: 1px solid rgba(201,164,91,.4);
    color: var(--color-accent); padding: 4px 12px; border-radius: 999px;
    font-size: 12px; font-weight: 500; letter-spacing: .5px; margin-bottom: 12px;
}

/* ============ Sub-topic Entry ============ */
.sub-topic-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.sub-topic-card {
    background: var(--color-surface); border: 1px solid var(--color-line);
    border-radius: var(--radius-md); padding: 24px 20px; text-align: center;
    transition: var(--transition); box-shadow: var(--shadow-sm); display: block;
}
.sub-topic-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(201,164,91,.5); }
.sub-topic-icon {
    width: 52px; height: 52px; border-radius: 50%;
    background: rgba(201,164,91,.14); border: 1px solid rgba(201,164,91,.35);
    display: flex; align-items: center; justify-content: center;
    color: var(--color-secondary); font-size: 22px; margin: 0 auto 14px; font-weight: 700;
}
.sub-topic-card h3 { font-size: 17px; font-weight: 600; color: var(--color-primary); margin-bottom: 8px; }
.sub-topic-card p { font-size: 13px; color: var(--color-muted); line-height: 1.6; }

/* ============ Article Grid ============ */
.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.article-card {
    background: var(--color-surface); border: 1px solid var(--color-line);
    border-radius: var(--radius-md); overflow: hidden;
    transition: var(--transition); box-shadow: var(--shadow-sm); display: flex; flex-direction: column;
}
.article-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.article-thumb { position: relative; aspect-ratio: 16/9; overflow: hidden; background: var(--color-line); }
.article-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.article-card:hover .article-thumb img { transform: scale(1.04); }
.article-thumb .badge-tag {
    position: absolute; top: 12px; left: 12px; z-index: 2;
    background: rgba(28,42,46,.82); color: var(--color-accent);
    padding: 4px 12px; border-radius: 999px; font-size: 11px; font-weight: 500; letter-spacing: .3px;
    border: 1px solid rgba(201,164,91,.35);
}
.article-body { padding: 20px 18px 22px; flex: 1; display: flex; flex-direction: column; }
.article-body h3 { font-size: 17px; font-weight: 600; line-height: 1.5; margin-bottom: 10px; color: var(--color-primary); }
.article-body p { font-size: 13px; color: var(--color-muted); line-height: 1.65; flex: 1; margin-bottom: 14px; }
.article-meta { display: flex; align-items: center; justify-content: space-between; font-size: 12px; color: #8B9398; }
.article-meta .tag-label { color: var(--color-secondary); font-weight: 500; }

/* ============ Steps Section ============ */
.steps-section { background: var(--color-primary); color: #fff; }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 36px; }
.step-card {
    background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14);
    border-radius: var(--radius-md); padding: 28px 24px; position: relative;
    transition: var(--transition);
}
.step-card:hover { background: rgba(255,255,255,.1); border-color: rgba(201,164,91,.5); transform: translateY(-3px); }
.step-number {
    display: inline-flex; align-items: center; justify-content: center;
    width: 44px; height: 44px; border-radius: 50%;
    background: var(--color-accent); color: var(--color-primary);
    font-weight: 700; font-size: 18px; margin-bottom: 16px;
}
.step-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; color: #fff; }
.step-card p { font-size: 14px; color: rgba(255,255,255,.75); line-height: 1.7; }

/* ============ Strategy Section ============ */
.strategy-section { background: var(--color-surface); }
.strategy-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.strategy-points { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.strategy-point {
    background: var(--color-bg); border: 1px solid var(--color-line);
    border-radius: var(--radius-md); padding: 18px 16px;
    transition: var(--transition);
}
.strategy-point:hover { border-color: rgba(201,164,91,.5); box-shadow: var(--shadow-md); }
.strategy-point-icon {
    width: 36px; height: 36px; border-radius: 8px;
    background: var(--color-secondary); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px; font-weight: 700; margin-bottom: 10px;
}
.strategy-point h4 { font-size: 15px; font-weight: 600; margin-bottom: 6px; color: var(--color-primary); }
.strategy-point p { font-size: 13px; color: var(--color-muted); line-height: 1.6; }

/* ============ Risk Strip ============ */
.risk-strip {
    background: linear-gradient(135deg, #3E2A28, #A34A3F);
    border-left: 4px solid #E8B4A9;
    padding: 24px 28px; border-radius: var(--radius-md);
    display: flex; align-items: flex-start; gap: 16px;
    max-width: 820px; margin: 0 auto;
}
.risk-strip-icon {
    flex-shrink: 0; width: 40px; height: 40px; border-radius: 50%;
    background: rgba(255,255,255,.18); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: 20px; font-weight: 700;
}
.risk-strip-content h3 { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 6px; }
.risk-strip-content p { font-size: 13px; color: rgba(255,255,255,.85); line-height: 1.7; }

/* ============ CTA Banner ============ */
.cta-banner {
    background: linear-gradient(135deg, var(--color-primary), #244047);
    border-radius: var(--radius-lg);
    padding: 36px 40px;
    display: flex; align-items: center; justify-content: space-between;
    gap: 24px; flex-wrap: wrap;
    border: 1px solid rgba(201,164,91,.3);
}
.cta-banner h3 { font-size: 22px; font-weight: 600; color: #fff; margin-bottom: 8px; }
.cta-banner p { font-size: 14px; color: rgba(255,255,255,.75); line-height: 1.7; max-width: 520px; }
.cta-banner .btn-primary { flex-shrink: 0; }

/* ============ Footer ============ */
.site-footer {
    background: var(--color-primary); color: rgba(255,255,255,.75);
    padding: 56px 0 28px; margin-top: 0;
    border-top: 1px solid rgba(255,255,255,.08);
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 36px; margin-bottom: 36px; }
.footer-brand h3 { color: #fff; font-size: 20px; font-weight: 700; margin-bottom: 12px; }
.footer-brand p { font-size: 13px; line-height: 1.7; color: rgba(255,255,255,.65); max-width: 300px; }
.footer-col h4 { color: var(--color-accent); font-size: 15px; font-weight: 600; margin-bottom: 14px; }
.footer-col a { display: block; font-size: 13px; color: rgba(255,255,255,.65); padding: 5px 0; transition: var(--transition); }
.footer-col a:hover { color: var(--color-accent); padding-left: 4px; }
.footer-col p { font-size: 13px; color: rgba(255,255,255,.65); margin-bottom: 6px; line-height: 1.6; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.1); padding-top: 20px;
    display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
    font-size: 12px; color: rgba(255,255,255,.5);
}
.legal-links { display: flex; gap: 18px; flex-wrap: wrap; }
.legal-links a { color: rgba(255,255,255,.5); font-size: 12px; transition: var(--transition); }
.legal-links a:hover { color: var(--color-accent); }

/* ============ Responsive ============ */
@media (max-width: 991px) {
    .sub-topic-grid { grid-template-columns: repeat(2, 1fr); }
    .article-grid { grid-template-columns: repeat(2, 1fr); }
    .strategy-wrap { grid-template-columns: 1fr; gap: 28px; }
    .steps-grid { grid-template-columns: 1fr; gap: 16px; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
    .page-banner h1 { font-size: 32px; }
    .section { padding: 56px 0; }
}
@media (max-width: 767px) {
    .main-nav { display: none; }
    .nav-toggle { display: flex; }
    .page-banner { padding: 40px 0; }
    .page-banner h1 { font-size: 26px; }
    .page-banner-subtitle { font-size: 14px; }
    .sub-topic-grid { grid-template-columns: 1fr; }
    .article-grid { grid-template-columns: 1fr; }
    .strategy-points { grid-template-columns: 1fr; }
    .cta-banner { flex-direction: column; text-align: center; padding: 28px 20px; }
    .cta-banner .btn-primary { width: 100%; }
    .footer-grid { grid-template-columns: 1fr; gap: 20px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .legal-links { justify-content: center; }
    .risk-strip { flex-direction: column; padding: 20px; }
    .section { padding: 44px 0; }
}

/* roulang page: category2 */
:root {
            --color-primary: #1C2A2E;
            --color-accent: #C9A45B;
            --color-accent-hover: #B8964E;
            --color-secondary: #2F4F4A;
            --color-bg: #F7F3EC;
            --color-surface: #FFFFFF;
            --color-text: #253238;
            --color-muted: #6B7478;
            --color-line: #E5DED2;
            --color-risk: #A34A3F;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(28,42,46,.06);
            --shadow-md: 0 8px 24px rgba(28,42,46,.1);
            --shadow-lg: 0 12px 28px rgba(28,42,46,.12);
            --shadow-dark: 0 4px 16px rgba(0,0,0,.18);
            --font-sans: "Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
            --container: 1200px;
            --transition: all .25s ease;
            --section-pad: 80px;
        }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background: var(--color-bg);
            min-height: 100vh;
        }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        a:hover { color: var(--color-accent-hover); }
        img { display: block; max-width: 100%; height: auto; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }
        .container { max-width: var(--container); margin: 0 auto; padding: 0 16px; }
        section { padding: var(--section-pad) 0; }
        .section-alt { background: var(--color-surface); }
        .section-dark { background: var(--color-primary); color: #fff; }
        .section-label {
            display: inline-flex; align-items: center; gap: 8px;
            background: rgba(201,164,91,.14); border: 1px solid rgba(201,164,91,.35);
            color: var(--color-accent-hover); padding: 5px 14px; border-radius: 999px;
            font-size: 13px; font-weight: 600; letter-spacing: .5px; margin-bottom: 14px;
        }
        .section-title {
            font-size: 30px; font-weight: 700; letter-spacing: .3px;
            color: var(--color-primary); margin-bottom: 14px; line-height: 1.4;
        }
        .section-desc {
            font-size: 15px; color: var(--color-muted); max-width: 640px;
            margin-bottom: 32px; line-height: 1.8;
        }
        .btn {
            display: inline-flex; align-items: center; justify-content: center; gap: 8px;
            padding: 13px 28px; border-radius: 999px; font-weight: 600; font-size: 15px;
            letter-spacing: .3px; cursor: pointer; border: none; transition: var(--transition);
        }
        .btn-primary { background: var(--color-accent); color: var(--color-primary); }
        .btn-primary:hover { background: var(--color-accent-hover); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(201,164,91,.3); color: var(--color-primary); }
        .btn-primary:active { transform: translateY(0); }
        .btn-outline-light { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.5); }
        .btn-outline-light:hover { background: rgba(255,255,255,.1); border-color: #fff; transform: translateY(-2px); color: #fff; }
        .btn-outline-dark { background: transparent; color: var(--color-primary); border: 1px solid var(--color-primary); }
        .btn-outline-dark:hover { background: rgba(28,42,46,.06); border-color: var(--color-primary); transform: translateY(-2px); color: var(--color-primary); }
        :focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
        /* ============ Header / Navigation ============ */
        .site-header {
            position: sticky; top: 0; z-index: 1000;
            background: var(--color-primary);
            border-bottom: 1px solid rgba(255,255,255,.08);
            height: 68px; display: flex; align-items: center;
        }
        .site-header .container { display: flex; align-items: center; justify-content: space-between; width: 100%; }
        .brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; font-size: 20px; letter-spacing: .5px; }
        .brand:hover { color: #fff; }
        .brand-icon { width: 38px; height: 38px; border-radius: 8px; background: linear-gradient(135deg, var(--color-accent), #E3C98E); display: flex; align-items: center; justify-content: center; color: var(--color-primary); font-weight: 800; font-size: 18px; flex-shrink: 0; }
        .brand-text { color: #fff; }
        .nav-toggle { display: none; background: none; border: 1px solid rgba(255,255,255,.25); color: #fff; width: 48px; height: 48px; border-radius: 8px; cursor: pointer; font-size: 24px; line-height: 1; align-items: center; justify-content: center; transition: var(--transition); }
        .nav-toggle:hover { background: rgba(255,255,255,.08); }
        .main-nav { display: flex; align-items: center; gap: 8px; }
        .main-nav a {
            color: rgba(255,255,255,.78); padding: 8px 16px; border-radius: 8px;
            font-size: 15px; font-weight: 500; letter-spacing: .3px; position: relative;
            transition: var(--transition);
        }
        .main-nav a::after {
            content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%);
            width: 0; height: 2px; background: var(--color-accent); border-radius: 2px; transition: var(--transition);
        }
        .main-nav a:hover, .main-nav a.active { color: #fff; }
        .main-nav a:hover::after, .main-nav a.active::after { width: 24px; }
        .main-nav a.active { color: var(--color-accent); }
        .nav-dropdown { display: none; position: absolute; top: 68px; left: 0; right: 0; background: var(--color-primary); border-top: 1px solid rgba(255,255,255,.08); padding: 12px 16px 20px; z-index: 999; }
        .nav-dropdown.open { display: block; }
        .nav-dropdown a { display: block; color: rgba(255,255,255,.8); padding: 12px 8px; border-bottom: 1px solid rgba(255,255,255,.06); font-size: 16px; font-weight: 500; }
        .nav-dropdown a:hover, .nav-dropdown a.active { color: var(--color-accent); }
        /* ============ Category Header ============ */
        .cat-header {
            position: relative; padding: 60px 0 56px;
            background-image: linear-gradient(135deg, rgba(28,42,46,.93), rgba(28,42,46,.7)), url('/assets/images/f26d9183f4e8c905.webp');
            background-size: cover; background-position: center; color: #fff;
        }
        .cat-breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255,255,255,.65); margin-bottom: 20px; flex-wrap: wrap; }
        .cat-breadcrumb a { color: rgba(255,255,255,.82); }
        .cat-breadcrumb a:hover { color: var(--color-accent); }
        .cat-breadcrumb .sep { color: rgba(255,255,255,.4); }
        .cat-breadcrumb .current { color: var(--color-accent); font-weight: 500; }
        .cat-header h1 { font-size: 36px; font-weight: 700; letter-spacing: .5px; color: #fff; margin-bottom: 12px; line-height: 1.4; }
        .cat-header p { font-size: 15px; color: rgba(255,255,255,.75); max-width: 640px; line-height: 1.8; margin-bottom: 0; }
        /* ============ Risk Metrics ============ */
        .risk-metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
        .risk-metric-card {
            background: var(--color-surface); border: 1px solid var(--color-line); border-radius: var(--radius-md);
            padding: 24px 20px; text-align: center; transition: var(--transition); box-shadow: var(--shadow-sm);
        }
        .risk-metric-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .risk-metric-icon { width: 44px; height: 44px; border-radius: 10px; background: rgba(47,79,74,.1); display: flex; align-items: center; justify-content: center; margin: 0 auto 12px; font-size: 22px; }
        .risk-metric-value { font-size: 30px; font-weight: 700; color: var(--color-primary); line-height: 1.2; }
        .risk-metric-value .unit { font-size: 16px; font-weight: 500; color: var(--color-muted); margin-left: 2px; }
        .risk-metric-label { font-size: 13px; color: var(--color-muted); margin-top: 6px; }
        /* ============ Safety Checklist ============ */
        .safety-list { display: flex; flex-direction: column; gap: 14px; }
        .safety-item {
            display: flex; align-items: flex-start; gap: 16px;
            background: var(--color-surface); border: 1px solid var(--color-line); border-radius: var(--radius-md);
            padding: 20px 24px; transition: var(--transition); box-shadow: var(--shadow-sm);
        }
        .safety-item:hover { border-color: rgba(201,164,91,.45); box-shadow: var(--shadow-md); }
        .safety-check {
            width: 32px; height: 32px; border-radius: 50%; background: rgba(47,79,74,.12);
            display: flex; align-items: center; justify-content: center; color: var(--color-secondary);
            font-weight: 700; font-size: 16px; flex-shrink: 0; margin-top: 2px;
        }
        .safety-item h4 { font-size: 18px; font-weight: 600; color: var(--color-primary); margin-bottom: 6px; }
        .safety-item p { font-size: 14px; color: var(--color-muted); margin-bottom: 0; line-height: 1.7; }
        /* ============ Account Isolation ============ */
        .isolation-wrap {
            display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center;
            background: var(--color-surface); border: 1px solid var(--color-line); border-radius: var(--radius-lg);
            padding: 40px; box-shadow: var(--shadow-sm);
        }
        .isolation-img { border-radius: var(--radius-md); overflow: hidden; }
        .isolation-img img { width: 100%; height: 100%; object-fit: cover; border-radius: var(--radius-md); }
        .isolation-content h3 { font-size: 24px; font-weight: 700; color: var(--color-primary); margin-bottom: 16px; }
        .isolation-content p { font-size: 15px; color: var(--color-muted); line-height: 1.8; margin-bottom: 14px; }
        .isolation-points { list-style: none; padding: 0; margin: 0; }
        .isolation-points li { padding: 8px 0 8px 24px; position: relative; font-size: 14px; color: var(--color-text); line-height: 1.7; }
        .isolation-points li::before { content: ''; position: absolute; left: 0; top: 14px; width: 8px; height: 8px; border-radius: 50%; background: var(--color-accent); }
        /* ============ Accordion ============ */
        .accordion-custom { display: flex; flex-direction: column; gap: 10px; }
        .accordion-custom .accordion-item {
            background: var(--color-surface); border: 1px solid var(--color-line) !important;
            border-radius: var(--radius-md) !important; overflow: hidden; box-shadow: var(--shadow-sm);
        }
        .accordion-custom .accordion-button {
            background: var(--color-surface); color: var(--color-primary); font-weight: 600;
            font-size: 16px; padding: 18px 24px; border: none; box-shadow: none;
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            background: var(--color-surface); color: var(--color-primary);
            border-bottom: 1px solid var(--color-line); box-shadow: none;
        }
        .accordion-custom .accordion-button:focus { box-shadow: none; outline: 2px solid var(--color-accent); outline-offset: -2px; }
        .accordion-custom .accordion-button::after { filter: invert(40%) sepia(40%) saturate(300%) hue-rotate(5deg); }
        .accordion-custom .accordion-body {
            font-size: 15px; color: var(--color-muted); line-height: 1.8; padding: 18px 24px;
        }
        /* ============ Article Cards ============ */
        .article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .article-card {
            background: var(--color-surface); border: 1px solid var(--color-line); border-radius: var(--radius-md);
            overflow: hidden; transition: var(--transition); box-shadow: var(--shadow-sm); display: flex; flex-direction: column;
        }
        .article-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
        .article-card-thumb { aspect-ratio: 16 / 9; overflow: hidden; }
        .article-card-thumb img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
        .article-card:hover .article-card-thumb img { transform: scale(1.04); }
        .article-card-body { padding: 20px 22px; display: flex; flex-direction: column; flex: 1; }
        .article-badge {
            display: inline-block; background: rgba(201,164,91,.14); color: var(--color-accent-hover);
            padding: 4px 12px; border-radius: 999px; font-size: 12px; font-weight: 600; margin-bottom: 10px;
            width: fit-content;
        }
        .article-card h4 { font-size: 18px; font-weight: 600; color: var(--color-primary); margin-bottom: 8px; line-height: 1.5; }
        .article-card p { font-size: 14px; color: var(--color-muted); line-height: 1.7; margin-bottom: 12px; flex: 1; }
        .article-card .article-meta { font-size: 12px; color: #9aa3a7; }
        /* ============ Risk Alert ============ */
        .risk-alert {
            background: rgba(163,74,63,.08); border: 1px solid rgba(163,74,63,.3);
            border-radius: var(--radius-md); padding: 28px 32px;
            display: flex; align-items: flex-start; gap: 16px;
        }
        .risk-alert-icon {
            width: 44px; height: 44px; border-radius: 50%; background: var(--color-risk);
            display: flex; align-items: center; justify-content: center; color: #fff; font-size: 22px; font-weight: 700; flex-shrink: 0;
        }
        .risk-alert h3 { font-size: 20px; font-weight: 700; color: var(--color-risk); margin-bottom: 8px; }
        .risk-alert p { font-size: 14px; color: var(--color-muted); line-height: 1.8; margin-bottom: 0; }
        /* ============ CTA Band ============ */
        .cta-band {
            background: var(--color-primary); border-radius: var(--radius-lg);
            padding: 44px 40px; display: grid; grid-template-columns: 1fr auto; gap: 32px; align-items: center;
            color: #fff;
        }
        .cta-band h3 { font-size: 24px; font-weight: 700; color: #fff; margin-bottom: 8px; }
        .cta-band p { font-size: 14px; color: rgba(255,255,255,.7); margin-bottom: 0; }
        .cta-form { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
        .cta-form input {
            background: #fff; border: 1px solid rgba(255,255,255,.2); border-radius: 999px;
            padding: 13px 20px; font-size: 14px; min-width: 220px; color: var(--color-text);
        }
        .cta-form input:focus { outline: 2px solid var(--color-accent); outline-offset: 0; }
        /* ============ Footer ============ */
        .site-footer {
            background: var(--color-primary); color: rgba(255,255,255,.75);
            padding: 56px 0 28px; margin-top: 60px;
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 32px; margin-bottom: 36px; }
        .footer-brand h3 { color: #fff; font-size: 20px; font-weight: 700; margin-bottom: 10px; }
        .footer-brand p { font-size: 13px; color: rgba(255,255,255,.55); line-height: 1.7; max-width: 280px; }
        .footer-col h4 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 12px; }
        .footer-col a { display: block; font-size: 13px; color: rgba(255,255,255,.6); padding: 5px 0; }
        .footer-col a:hover { color: var(--color-accent); }
        .footer-col p { font-size: 13px; color: rgba(255,255,255,.6); margin-bottom: 6px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,.1); padding-top: 20px;
            display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
        }
        .footer-bottom p { font-size: 12px; color: rgba(255,255,255,.45); margin-bottom: 0; }
        .legal-links { display: flex; gap: 16px; }
        .legal-links a { font-size: 12px; color: rgba(255,255,255,.5); }
        .legal-links a:hover { color: var(--color-accent); }
        /* ============ Responsive ============ */
        @media (max-width: 992px) {
            .risk-metrics { grid-template-columns: repeat(2, 1fr); }
            .isolation-wrap { grid-template-columns: 1fr; padding: 28px; }
            .article-grid { grid-template-columns: repeat(2, 1fr); }
            .cta-band { grid-template-columns: 1fr; padding: 32px 24px; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .main-nav { display: none; }
            .nav-toggle { display: flex; }
            .cat-header h1 { font-size: 28px; }
            .section-title { font-size: 24px; }
            .risk-metrics { grid-template-columns: 1fr 1fr; gap: 14px; }
            .risk-metric-value { font-size: 24px; }
            .article-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .cta-form { flex-direction: column; width: 100%; }
            .cta-form input { width: 100%; min-width: 0; }
            .cta-form .btn { width: 100%; }
            section { padding: 48px 0; }
        }
        @media (max-width: 520px) {
            .risk-metrics { grid-template-columns: 1fr; }
            .cat-header { padding: 40px 0 36px; }
            .cat-header h1 { font-size: 24px; }
            .isolation-wrap { padding: 20px; }
            .risk-alert { padding: 20px; flex-direction: column; }
            .risk-alert-icon { width: 36px; height: 36px; font-size: 18px; }
        }

/* roulang page: category3 */
:root {
            --color-primary: #1C2A2E;
            --color-accent: #C9A45B;
            --color-accent-hover: #B8964E;
            --color-secondary: #2F4F4A;
            --color-bg: #F7F3EC;
            --color-surface: #FFFFFF;
            --color-text: #253238;
            --color-muted: #6B7478;
            --color-line: #E5DED2;
            --color-risk: #A34A3F;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(28,42,46,.06);
            --shadow-md: 0 8px 24px rgba(28,42,46,.1);
            --shadow-lg: 0 12px 28px rgba(28,42,46,.12);
            --shadow-dark: 0 4px 16px rgba(0,0,0,.18);
            --font-sans: "Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
            --container: 1200px;
            --transition: all .25s 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(--color-text);
            background: var(--color-bg);
            min-height: 100vh;
            margin: 0;
            padding: 0;
        }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        img { display: block; max-width: 100%; height: auto; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }
        .container { max-width: var(--container); margin: 0 auto; padding: 0 16px; }
        .container-fluid { padding: 0; }

        /* ============ Header / Navigation ============ */
        .site-header {
            position: sticky; top: 0; z-index: 1000;
            background: var(--color-primary);
            border-bottom: 1px solid rgba(255,255,255,.08);
            height: 68px; display: flex; align-items: center;
        }
        .site-header .container { display: flex; align-items: center; justify-content: space-between; width: 100%; }
        .brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; font-size: 20px; letter-spacing: .5px; }
        .brand-icon { width: 38px; height: 38px; border-radius: 8px; background: linear-gradient(135deg, var(--color-accent), #E3C98E); display: flex; align-items: center; justify-content: center; color: var(--color-primary); font-weight: 800; font-size: 18px; flex-shrink: 0; }
        .brand-text { color: #fff; }
        .nav-toggle { display: none; background: none; border: 1px solid rgba(255,255,255,.25); color: #fff; width: 48px; height: 48px; border-radius: 8px; cursor: pointer; font-size: 24px; line-height: 1; align-items: center; justify-content: center; transition: var(--transition); }
        .nav-toggle:hover { background: rgba(255,255,255,.08); }
        .main-nav { display: flex; align-items: center; gap: 8px; }
        .main-nav a {
            color: rgba(255,255,255,.78); padding: 8px 16px; border-radius: 8px;
            font-size: 15px; font-weight: 500; letter-spacing: .3px; position: relative;
            transition: var(--transition);
        }
        .main-nav a::after {
            content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%);
            width: 0; height: 2px; background: var(--color-accent); border-radius: 2px; transition: var(--transition);
        }
        .main-nav a:hover, .main-nav a.active { color: #fff; }
        .main-nav a:hover::after, .main-nav a.active::after { width: 24px; }
        .main-nav a.active { color: var(--color-accent); }
        .nav-dropdown { display: none; position: absolute; top: 68px; left: 0; right: 0; background: var(--color-primary); border-top: 1px solid rgba(255,255,255,.08); padding: 12px 16px 20px; z-index: 999; }
        .nav-dropdown.open { display: block; }
        .nav-dropdown a { display: block; color: rgba(255,255,255,.8); padding: 12px 8px; border-bottom: 1px solid rgba(255,255,255,.06); font-size: 16px; font-weight: 500; }
        .nav-dropdown a:hover, .nav-dropdown a.active { color: var(--color-accent); }

        /* ============ Breadcrumb / Page Head ============ */
        .page-head {
            position: relative;
            background-image: linear-gradient(135deg, rgba(28,42,46,.94), rgba(28,42,46,.68)), url('/assets/images/f26d9183f4e8c905.webp');
            background-size: cover;
            background-position: center;
            color: #fff;
            padding: 64px 0 56px;
            border-bottom: 1px solid rgba(255,255,255,.08);
        }
        .breadcrumb {
            display: flex; align-items: center; gap: 8px;
            font-size: 14px; color: rgba(255,255,255,.7); margin-bottom: 18px; flex-wrap: wrap;
        }
        .breadcrumb a { color: rgba(255,255,255,.8); }
        .breadcrumb a:hover { color: var(--color-accent); }
        .breadcrumb span { color: rgba(255,255,255,.5); }
        .page-head h1 {
            font-size: 40px; line-height: 1.3; font-weight: 700; letter-spacing: .5px;
            color: #fff; margin-bottom: 14px;
        }
        .page-lead {
            font-size: 16px; color: rgba(255,255,255,.82); max-width: 680px; line-height: 1.8; margin-bottom: 0;
        }
        @media (max-width: 767px) {
            .page-head h1 { font-size: 30px; }
            .page-head { padding: 48px 0 40px; }
        }

        /* ============ Sections ============ */
        .section { padding: 72px 0; }
        .section-alt { background: var(--color-surface); }
        .section-dark { background: var(--color-primary); color: #fff; }
        .section-dark .section-head h2, .section-dark .section-head p { color: #fff; }
        .section-head { margin-bottom: 40px; }
        .section-head h2 {
            font-size: 30px; font-weight: 700; letter-spacing: .5px;
            color: var(--color-primary); margin-bottom: 10px;
        }
        .section-head .section-lead { font-size: 16px; color: var(--color-muted); max-width: 720px; line-height: 1.7; }
        @media (max-width: 767px) {
            .section { padding: 48px 0; }
            .section-head h2 { font-size: 24px; }
        }

        /* ============ Timeline ============ */
        .timeline-section { background: var(--color-bg); }
        .timeline-list { position: relative; max-width: 900px; margin: 0 auto; padding-left: 24px; border-left: 2px solid var(--color-line); }
        .timeline-item { position: relative; margin-bottom: 32px; padding-left: 28px; }
        .timeline-item:last-child { margin-bottom: 0; }
        .timeline-dot {
            position: absolute; left: -13px; top: 6px; width: 16px; height: 16px;
            border-radius: 50%; background: var(--color-accent); border: 3px solid var(--color-bg);
            box-shadow: 0 0 0 2px var(--color-accent);
        }
        .timeline-card {
            background: var(--color-surface); border: 1px solid var(--color-line);
            border-radius: var(--radius-md); padding: 22px 24px;
            box-shadow: var(--shadow-sm); transition: var(--transition);
        }
        .timeline-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
        .timeline-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
        .badge { display: inline-flex; align-items: center; padding: 4px 12px; border-radius: 999px; font-size: 12px; font-weight: 600; letter-spacing: .5px; }
        .badge-accent { background: rgba(201,164,91,.15); color: var(--color-accent); border: 1px solid rgba(201,164,91,.4); }
        .badge-outline { background: transparent; color: var(--color-secondary); border: 1px solid var(--color-secondary); }
        .timeline-date { font-size: 13px; color: var(--color-muted); }
        .timeline-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; line-height: 1.5; }
        .timeline-card h3 a { color: var(--color-primary); }
        .timeline-card h3 a:hover { color: var(--color-accent); }
        .timeline-card p { font-size: 15px; color: var(--color-muted); line-height: 1.7; margin: 0; }
        .empty-state {
            text-align: center; padding: 40px 20px; color: var(--color-muted);
            background: var(--color-surface); border: 1px dashed var(--color-line);
            border-radius: var(--radius-md); font-size: 15px;
        }

        /* ============ Tag Cloud ============ */
        .tags-section { background: var(--color-surface); }
        .tag-cloud { display: flex; flex-wrap: wrap; gap: 12px; }
        .tag {
            display: inline-block; padding: 8px 18px; border-radius: 999px;
            background: var(--color-bg); border: 1px solid var(--color-line);
            color: var(--color-text); font-size: 14px; font-weight: 500; letter-spacing: .3px;
            transition: var(--transition);
        }
        .tag:hover { background: var(--color-accent); color: var(--color-primary); border-color: var(--color-accent); }

        /* ============ Calendar ============ */
        .calendar-section { background: var(--color-bg); }
        .calendar-grid {
            display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px;
            background: var(--color-surface); border: 1px solid var(--color-line);
            border-radius: var(--radius-md); padding: 24px; max-width: 680px; margin-bottom: 16px;
            box-shadow: var(--shadow-sm);
        }
        .cal-day {
            display: flex; flex-direction: column; align-items: center; justify-content: center;
            background: var(--color-bg); border-radius: var(--radius-sm); padding: 14px 6px;
            font-size: 14px; color: var(--color-text); border: 1px solid transparent;
        }
        .cal-day.trading { background: rgba(47,79,74,.12); color: var(--color-secondary); font-weight: 600; border-color: rgba(47,79,74,.2); }
        .cal-day.closed { background: #f0f0f0; color: var(--color-muted); }
        .cal-label { font-size: 11px; color: var(--color-muted); margin-top: 4px; }
        .calendar-note { font-size: 13px; color: var(--color-muted); }
        @media (max-width: 767px) {
            .calendar-grid { grid-template-columns: repeat(4, 1fr); padding: 16px; }
        }

        /* ============ Analysis Cards ============ */
        .analysis-section { background: var(--color-surface); }
        .analysis-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .analysis-card {
            background: var(--color-bg); border: 1px solid var(--color-line);
            border-radius: var(--radius-md); overflow: hidden; transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .analysis-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
        .analysis-card img { width: 100%; height: 180px; object-fit: cover; display: block; }
        .analysis-card-body { padding: 20px; }
        .analysis-card-body h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: var(--color-primary); }
        .analysis-card-body p { font-size: 15px; color: var(--color-muted); line-height: 1.7; margin-bottom: 14px; }
        .analysis-link { color: var(--color-accent); font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 4px; }
        .analysis-link:hover { color: var(--color-accent-hover); }
        @media (max-width: 991px) {
            .analysis-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 767px) {
            .analysis-grid { grid-template-columns: 1fr; }
        }

        /* ============ Related / News Cards ============ */
        .related-section { background: var(--color-bg); }
        .related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
        .news-card {
            background: var(--color-surface); border: 1px solid var(--color-line);
            border-radius: var(--radius-md); padding: 24px; box-shadow: var(--shadow-sm);
            transition: var(--transition); display: flex; flex-direction: column;
        }
        .news-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
        .news-card-body { flex: 1; }
        .news-card-body h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; line-height: 1.5; }
        .news-card-body h3 a { color: var(--color-primary); }
        .news-card-body h3 a:hover { color: var(--color-accent); }
        .news-card-body p { font-size: 15px; color: var(--color-muted); line-height: 1.7; margin-bottom: 14px; }
        .news-card-foot { display: flex; align-items: center; gap: 12px; color: var(--color-muted); font-size: 13px; }
        @media (max-width: 991px) {
            .related-grid { grid-template-columns: 1fr; }
        }

        /* ============ CTA ============ */
        .cta-section {
            background-image: linear-gradient(135deg, rgba(28,42,46,.98), rgba(28,42,46,.88)), url('/assets/images/53ee198f2d7429e7.webp');
            background-size: cover; background-position: center; color: #fff; position: relative;
        }
        .cta-inner { max-width: 720px; margin: 0 auto; text-align: center; }
        .cta-inner h2 { font-size: 30px; font-weight: 700; color: #fff; margin-bottom: 12px; }
        .cta-inner p { font-size: 16px; color: rgba(255,255,255,.82); margin-bottom: 28px; }
        .cta-form {
            display: flex; gap: 12px; flex-wrap: wrap; justify-content: center;
            background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16);
            border-radius: var(--radius-md); padding: 16px; backdrop-filter: blur(6px);
        }
        .cta-form input {
            flex: 1; min-width: 220px; padding: 13px 18px; border-radius: 8px;
            border: 1px solid rgba(255,255,255,.35); background: rgba(255,255,255,.12);
            color: #fff; font-size: 15px; outline: none; transition: var(--transition);
        }
        .cta-form input::placeholder { color: rgba(255,255,255,.6); }
        .cta-form input:focus { border-color: var(--color-accent); background: rgba(255,255,255,.18); box-shadow: 0 0 0 2px var(--color-accent); }
        .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 28px; border-radius: 999px; font-weight: 600; font-size: 15px; letter-spacing: .3px; cursor: pointer; border: none; transition: var(--transition); }
        .btn-primary { background: var(--color-accent); color: var(--color-primary); }
        .btn-primary:hover { background: var(--color-accent-hover); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(201,164,91,.3); }
        .btn-primary:active { transform: translateY(0); }
        .btn-outline-light { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.5); }
        .btn-outline-light:hover { background: rgba(255,255,255,.1); border-color: #fff; transform: translateY(-2px); }
        @media (max-width: 767px) {
            .cta-form { flex-direction: column; }
            .cta-form input, .btn { width: 100%; }
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--color-primary); color: rgba(255,255,255,.75);
            padding: 60px 0 28px; border-top: 1px solid rgba(255,255,255,.08);
            margin-top: 0;
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 32px; margin-bottom: 40px; }
        .footer-brand h3 { font-size: 20px; color: #fff; font-weight: 700; margin-bottom: 14px; }
        .footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,.6); margin-bottom: 0; }
        .footer-col h4 { font-size: 16px; color: #fff; font-weight: 600; margin-bottom: 14px; }
        .footer-col a { display: block; font-size: 14px; padding: 5px 0; color: rgba(255,255,255,.65); transition: var(--transition); }
        .footer-col a:hover { color: var(--color-accent); }
        .footer-col p { font-size: 14px; margin-bottom: 6px; color: rgba(255,255,255,.65); }
        .footer-bottom {
            display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap;
            padding-top: 20px; border-top: 1px solid rgba(255,255,255,.08);
            font-size: 13px; color: rgba(255,255,255,.5);
        }
        .legal-links { display: flex; gap: 20px; }
        .legal-links a { color: rgba(255,255,255,.5); transition: var(--transition); }
        .legal-links a:hover { color: var(--color-accent); }
        @media (max-width: 991px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 767px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
            .legal-links { justify-content: center; }
        }

        /* ============ Responsive Navigation ============ */
        @media (max-width: 991px) {
            .main-nav { display: none; }
            .nav-toggle { display: inline-flex; }
        }

        /* ============ Focus Visible ============ */
        a:focus-visible, button:focus-visible, input:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }