/* roulang page: index */
:root {
  --primary: #0d1b2a;
  --primary-light: #1b2f45;
  --accent: #f0a500;
  --accent-hover: #d18f00;
  --bg-light: #f5f7fb;
  --bg-deep: #081420;
  --text-dark: #1a2434;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --white: #ffffff;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 14px 44px rgba(0, 0, 0, 0.13);
  --transition: all 0.3s ease;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif; background: var(--bg-light); color: var(--text-dark); line-height: 1.7; overflow-x: hidden; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; height: auto; }
.container { max-width: 1240px; padding-left: 20px; padding-right: 20px; }
.btn { border-radius: 50px; padding: 0.65rem 1.8rem; font-weight: 600; font-size: 0.95rem; transition: var(--transition); border: 0; }
.btn-accent { background: var(--accent); color: var(--primary); }
.btn-accent:hover, .btn-accent:focus { background: var(--accent-hover); color: var(--primary); transform: translateY(-2px); box-shadow: 0 10px 30px rgba(240, 165, 0, 0.3); }
.btn-outline-light { background: transparent; border: 2px solid rgba(255, 255, 255, 0.8); color: #fff; }
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.15); color: #fff; border-color: #fff; }
.btn-primary-custom { background: var(--primary); color: #fff; }
.btn-primary-custom:hover { background: var(--primary-light); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 30px rgba(13, 27, 42, 0.25); }
.section-pad { padding: 6rem 0; }
.section-pad-sm { padding: 3.5rem 0; }
.bg-white { background: #fff; }
.section-head { max-width: 720px; margin-bottom: 3rem; }
.section-tag { display: inline-flex; align-items: center; gap: 0.45rem; background: rgba(240, 165, 0, 0.12); color: var(--accent-hover); padding: 0.35rem 1rem; border-radius: 50px; font-size: 0.82rem; font-weight: 600; letter-spacing: 0.5px; margin-bottom: 0.9rem; }
.section-title { font-size: 2.2rem; font-weight: 800; color: var(--text-dark); line-height: 1.3; margin-bottom: 0.7rem; }
.section-sub { color: var(--text-muted); font-size: 1rem; }
.text-accent { color: var(--accent) !important; }

/* ===== Header ===== */
.header-navbar { background: var(--primary); padding: 0; box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2); position: sticky; top: 0; z-index: 1000; }
.header-flex { display: flex; align-items: center; gap: 1.2rem; flex-wrap: wrap; padding: 0.7rem 20px; max-width: 1400px; margin: 0 auto; }
.brand { display: flex; align-items: center; gap: 0.6rem; font-size: 1.3rem; font-weight: 800; color: #fff; white-space: nowrap; }
.brand:hover { color: var(--accent); }
.brand-icon { width: 38px; height: 38px; background: linear-gradient(135deg, var(--accent), #ffc93c); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1rem; color: var(--primary); box-shadow: 0 6px 18px rgba(240, 165, 0, 0.4); }
.header-search { flex: 1; max-width: 560px; order: 2; }
.search-form { position: relative; display: flex; align-items: center; }
.search-form input { width: 100%; padding: 0.65rem 3rem 0.65rem 1.35rem; border: 0; border-radius: 50px; background: rgba(255, 255, 255, 0.12); color: #fff; font-size: 0.92rem; transition: var(--transition); }
.search-form input::placeholder { color: rgba(255, 255, 255, 0.6); }
.search-form input:focus { outline: none; background: rgba(255, 255, 255, 0.2); box-shadow: 0 0 0 3px rgba(240, 165, 0, 0.25); }
.search-form button { position: absolute; right: 8px; top: 50%; transform: translateY(-50%); width: 36px; height: 36px; border-radius: 50%; border: 0; background: var(--accent); color: var(--primary); display: flex; align-items: center; justify-content: center; cursor: pointer; transition: var(--transition); }
.search-form button:hover { background: var(--accent-hover); }
.header-nav .navbar-nav { display: flex; align-items: center; gap: 0.15rem; }
.header-nav .nav-link { color: rgba(255, 255, 255, 0.85); font-weight: 500; font-size: 0.96rem; padding: 0.55rem 1rem; border-radius: 50px; transition: var(--transition); }
.header-nav .nav-link:hover { color: var(--accent); background: rgba(255, 255, 255, 0.08); }
.header-nav .nav-link.active { color: var(--primary); background: var(--accent); font-weight: 600; }
.custom-toggler { border: 0; background: transparent; color: #fff; font-size: 1.4rem; padding: 0.25rem 0.65rem; border-radius: 10px; order: 3; margin-left: auto; }
.custom-toggler:hover, .custom-toggler:focus { background: rgba(255, 255, 255, 0.1); box-shadow: none; outline: none; }
@media (min-width: 992px) {
  .header-flex { flex-wrap: nowrap; }
  .custom-toggler { display: none; }
  .header-nav { order: 3; margin-left: auto; }
  .header-search { order: 2; margin: 0 1.5rem; }
}
@media (max-width: 991.98px) {
  .header-flex { padding: 0.6rem 16px; }
  .header-search { order: 3; flex-basis: 100%; max-width: 100%; margin-top: 0.6rem; }
  .header-nav { order: 4; flex-basis: 100%; }
  .header-nav .navbar-nav { flex-direction: column; align-items: stretch; gap: 0; padding: 1rem 0 0.4rem; }
  .header-nav .nav-link { padding: 0.7rem 1rem; border-radius: 10px; }
  .search-form input { background: rgba(255, 255, 255, 0.08); }
}

/* ===== Hero ===== */
.hero { position: relative; background: var(--bg-deep); color: #fff; padding: 6.5rem 0 5rem; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center/cover no-repeat; opacity: 0.35; z-index: 0; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(8, 20, 32, 0.93) 0%, rgba(13, 27, 42, 0.78) 55%, rgba(13, 27, 42, 0.55) 100%); z-index: 1; }
.hero .container { position: relative; z-index: 2; }
.hero-content { max-width: 760px; }
.hero-badge { display: inline-flex; align-items: center; gap: 0.5rem; background: rgba(240, 165, 0, 0.18); border: 1px solid rgba(240, 165, 0, 0.35); color: var(--accent); padding: 0.4rem 1.1rem; border-radius: 50px; font-size: 0.84rem; font-weight: 600; letter-spacing: 0.6px; margin-bottom: 1.4rem; }
.hero h1 { font-size: 3rem; font-weight: 900; line-height: 1.25; margin-bottom: 1rem; letter-spacing: 0.5px; }
.hero h1 span { color: var(--accent); }
.hero-desc { font-size: 1.08rem; color: rgba(255, 255, 255, 0.82); max-width: 620px; margin-bottom: 2rem; line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-bottom: 3rem; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 2.5rem; border-top: 1px solid rgba(255, 255, 255, 0.18); padding-top: 2rem; }
.hero-stat-item .num { font-size: 2rem; font-weight: 800; color: var(--accent); line-height: 1.3; }
.hero-stat-item .label { color: rgba(255, 255, 255, 0.65); font-size: 0.9rem; }
@media (max-width: 767.98px) {
  .hero { padding: 4rem 0 3.5rem; }
  .hero h1 { font-size: 2.1rem; }
  .hero-desc { font-size: 0.98rem; }
  .hero-stats { gap: 1.5rem; }
  .hero-stat-item .num { font-size: 1.5rem; }
}

/* ===== Feature 核心说明 ===== */
.feature-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 2.2rem 1.8rem; height: 100%; transition: var(--transition); position: relative; overflow: hidden; }
.feature-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px; background: linear-gradient(90deg, var(--accent), transparent); opacity: 0; transition: var(--transition); }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.feature-card:hover::before { opacity: 1; }
.feature-icon { width: 58px; height: 58px; border-radius: 14px; background: linear-gradient(135deg, rgba(240, 165, 0, 0.15), rgba(240, 165, 0, 0.05)); display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: var(--accent-hover); margin-bottom: 1.2rem; transition: var(--transition); }
.feature-card:hover .feature-icon { transform: scale(1.08); background: var(--accent); color: var(--primary); }
.feature-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.6rem; }
.feature-card p { color: var(--text-muted); font-size: 0.92rem; margin: 0; line-height: 1.7; }

/* ===== Category 分类入口 ===== */
.category-card { background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); transition: var(--transition); height: 100%; display: block; position: relative; }
.category-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
.category-card .cat-img { height: 190px; background: var(--primary-light) center/cover no-repeat; position: relative; }
.category-card .cat-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(13, 27, 42, 0.5)); }
.category-card .cat-body { padding: 1.6rem 1.6rem 1.8rem; }
.category-card .cat-body h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 0.5rem; }
.category-card .cat-body p { color: var(--text-muted); font-size: 0.92rem; margin-bottom: 1rem; line-height: 1.65; }
.category-card .cat-more { color: var(--accent-hover); font-weight: 600; font-size: 0.9rem; display: inline-flex; align-items: center; gap: 0.4rem; }
.category-card .cat-more i { transition: transform 0.3s; font-size: 0.8rem; }
.category-card:hover .cat-more i { transform: translateX(4px); }

/* ===== Showcase 平台特色 ===== */
.showcase-block { display: flex; align-items: center; gap: 4rem; }
.showcase-img { flex: 1; border-radius: 24px; overflow: hidden; box-shadow: var(--shadow-lg); position: relative; }
.showcase-img img { width: 100%; display: block; transition: transform 0.6s ease; }
.showcase-img:hover img { transform: scale(1.03); }
.showcase-content { flex: 1; }
.showcase-list { list-style: none; padding: 0; margin: 1.5rem 0 0; }
.showcase-list li { display: flex; align-items: center; gap: 0.75rem; padding: 0.65rem 0; font-size: 0.98rem; color: var(--text-dark); }
.showcase-list li i { color: var(--accent-hover); font-size: 1rem; flex-shrink: 0; }
@media (max-width: 991.98px) {
  .showcase-block { flex-direction: column; gap: 2rem; }
  .showcase-img { flex: 0 0 auto; width: 100%; }
}

/* ===== News 资讯列表 ===== */
.news-card { background: #fff; border-radius: var(--radius-sm); padding: 1.4rem 1.5rem; border: 1px solid var(--border); transition: var(--transition); display: block; height: 100%; }
.news-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: transparent; }
.news-meta { display: flex; align-items: center; gap: 0.7rem; margin-bottom: 0.6rem; flex-wrap: wrap; }
.news-tag { background: rgba(240, 165, 0, 0.12); color: var(--accent-hover); padding: 0.2rem 0.75rem; border-radius: 50px; font-size: 0.78rem; font-weight: 600; }
.news-date { color: var(--text-muted); font-size: 0.82rem; }
.news-card h3 { font-size: 1.02rem; font-weight: 650; margin-bottom: 0.4rem; line-height: 1.45; }
.news-card p { color: var(--text-muted); font-size: 0.89rem; margin: 0; line-height: 1.6; }
.news-empty { text-align: center; padding: 2.5rem 1rem; color: var(--text-muted); background: #fff; border-radius: var(--radius); border: 1px dashed var(--border); }

/* ===== Stats 数据 ===== */
.stats-section { background: var(--primary); color: #fff; position: relative; overflow: hidden; }
.stats-section::before { content: ''; position: absolute; top: -50%; right: -20%; width: 400px; height: 400px; border-radius: 50%; background: rgba(240, 165, 0, 0.12); }
.stats-grid { display: flex; justify-content: space-around; gap: 2rem; flex-wrap: wrap; padding: 3.5rem 0; }
.stats-item { text-align: center; }
.stats-item .stat-num { font-size: 2.8rem; font-weight: 900; color: var(--accent); line-height: 1.2; }
.stats-item .stat-label { font-size: 0.95rem; opacity: 0.75; margin-top: 0.3rem; }

/* ===== Process 流程 ===== */
.process-step { text-align: center; padding: 1.5rem 1rem; position: relative; }
.process-step .step-num { width: 56px; height: 56px; margin: 0 auto 1.2rem; background: var(--primary); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; font-weight: 700; position: relative; z-index: 1; box-shadow: 0 8px 24px rgba(13, 27, 42, 0.25); }
.process-step .step-num::after { content: ''; position: absolute; inset: -6px; border-radius: 50%; border: 2px dashed var(--accent); opacity: 0.5; }
.process-step h3 { font-size: 1.08rem; font-weight: 700; margin-bottom: 0.5rem; }
.process-step p { font-size: 0.9rem; color: var(--text-muted); margin: 0; }
@media (min-width: 768px) {
  .process-step:not(:last-child)::before { content: ''; position: absolute; top: 44px; right: -18px; width: 36px; height: 2px; background: var(--border); z-index: 0; }
}

/* ===== FAQ ===== */
.custom-accordion .accordion-item { border: 1px solid var(--border); border-radius: var(--radius-sm) !important; margin-bottom: 1rem; overflow: hidden; transition: var(--transition); background: #fff; }
.custom-accordion .accordion-item:first-of-type, .custom-accordion .accordion-item:last-of-type { border-radius: var(--radius-sm) !important; }
.custom-accordion .accordion-header { background: transparent; }
.custom-accordion .accordion-button { padding: 1.2rem 1.5rem; font-size: 1rem; font-weight: 600; color: var(--text-dark); background: #fff; box-shadow: none; border: 0; transition: var(--transition); }
.custom-accordion .accordion-button:not(.collapsed) { color: var(--accent-hover); background: #fff; }
.custom-accordion .accordion-button:focus { box-shadow: 0 0 0 3px rgba(240, 165, 0, 0.15); }
.custom-accordion .accordion-button::after { background-image: none; font-family: "Font Awesome 6 Free"; content: "\f078"; font-weight: 900; color: var(--text-muted); width: auto; height: auto; font-size: 0.9rem; transition: var(--transition); }
.custom-accordion .accordion-button:not(.collapsed)::after { transform: rotate(180deg); color: var(--accent-hover); }
.custom-accordion .accordion-body { padding: 0 1.5rem 1.4rem; color: var(--text-muted); font-size: 0.94rem; line-height: 1.75; }

/* ===== CTA ===== */
.cta-section { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; padding: 4.5rem 0; position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; bottom: -40%; left: -10%; width: 300px; height: 300px; border-radius: 50%; background: rgba(240, 165, 0, 0.18); }
.cta-section .cta-content { position: relative; z-index: 2; text-align: center; max-width: 680px; margin: 0 auto; }
.cta-section h2 { font-size: 2rem; font-weight: 800; margin-bottom: 0.8rem; }
.cta-section p { color: rgba(255, 255, 255, 0.8); margin-bottom: 1.8rem; }
.cta-section .btn { box-shadow: 0 10px 30px rgba(240, 165, 0, 0.35); }

/* ===== Footer ===== */
.site-footer { background: var(--bg-deep); color: rgba(255, 255, 255, 0.7); padding: 3.5rem 0 0; }
.site-footer a { color: rgba(255, 255, 255, 0.7); }
.site-footer a:hover { color: var(--accent); }
.footer-top { display: flex; flex-wrap: wrap; gap: 2.5rem; padding-bottom: 2.5rem; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
.footer-brand { flex: 1 1 260px; }
.footer-brand .brand { color: #fff; margin-bottom: 0.8rem; }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255, 255, 255, 0.55); }
.footer-links { flex: 1 1 160px; }
.footer-links h4 { color: #fff; font-size: 1rem; font-weight: 600; margin-bottom: 1rem; }
.footer-links a { display: block; padding: 0.3rem 0; font-size: 0.9rem; }
.footer-bottom { padding: 1.4rem 0; text-align: center; font-size: 0.85rem; color: rgba(255, 255, 255, 0.45); }
.footer-bottom a { color: rgba(255, 255, 255, 0.45); }
.footer-bottom a:hover { color: var(--accent); }

/* ===== Utility / misc ===== */
.form-control:focus, .form-select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(240, 165, 0, 0.15); }
.hero-link { display: inline-flex; align-items: center; gap: 0.5rem; color: rgba(255, 255, 255, 0.75); font-weight: 500; }
.hero-link i { color: var(--accent); }
.hero-link:hover { color: var(--accent); }
.return-home-link { display: inline-flex; align-items: center; gap: 0.5rem; background: var(--accent); color: var(--primary); padding: 0.65rem 1.5rem; border-radius: 50px; font-weight: 600; transition: var(--transition); }
.return-home-link:hover { background: var(--accent-hover); color: var(--primary); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(240, 165, 0, 0.3); }

@media (max-width: 575.98px) {
  .section-title { font-size: 1.6rem; }
  .section-pad { padding: 3.5rem 0; }
  .section-pad-sm { padding: 2.5rem 0; }
  .hero h1 { font-size: 1.75rem; }
  .hero-stats { gap: 1rem 1.8rem; }
  .stats-item .stat-num { font-size: 2rem; }
  .container { padding-left: 16px; padding-right: 16px; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1b2f5e;
            --primary-dark: #122244;
            --primary-light: #2a4589;
            --accent: #c9a25c;
            --accent-light: #dec48a;
            --accent-dark: #a9843f;
            --bg-body: #f2f5fa;
            --bg-white: #ffffff;
            --bg-soft: #eef1f7;
            --bg-deep: #0e1c3a;
            --text-heading: #16233a;
            --text-body: #3d4f66;
            --text-muted: #8494ab;
            --border-color: #e3e8f0;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 4px 14px rgba(22, 48, 90, 0.06);
            --shadow-md: 0 10px 32px rgba(22, 48, 90, 0.09);
            --shadow-lg: 0 20px 50px rgba(22, 48, 90, 0.16);
            --transition: 0.3s ease;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background-color: var(--bg-body);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        button,
        input,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Header / 导航 ===== */
        .header-navbar {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            padding-top: 12px;
            padding-bottom: 12px;
            position: sticky;
            top: 0;
            z-index: 1030;
        }

        .header-flex {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--primary) !important;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .brand-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            box-shadow: 0 4px 12px rgba(27, 47, 94, 0.25);
        }

        .header-search {
            flex: 1;
            max-width: 460px;
            min-width: 240px;
        }

        .search-form {
            display: flex;
            align-items: center;
            background: var(--bg-soft);
            border: 1px solid var(--border-color);
            border-radius: 40px;
            padding: 4px 6px 4px 18px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .search-form:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(201, 162, 92, 0.15);
            background: #fff;
        }

        .search-form input {
            flex: 1;
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.92rem;
            color: var(--text-heading);
            padding: 8px 0;
        }

        .search-form input::placeholder {
            color: var(--text-muted);
        }

        .search-form button {
            background: var(--primary);
            border: none;
            color: #fff;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: background var(--transition), transform var(--transition);
        }

        .search-form button:hover {
            background: var(--primary-light);
            transform: scale(1.04);
        }

        .header-nav .navbar-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .header-nav .nav-link {
            padding: 10px 16px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-body);
            transition: background var(--transition), color var(--transition);
        }

        .header-nav .nav-link:hover {
            background: var(--bg-soft);
            color: var(--primary);
        }

        .header-nav .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(27, 47, 94, 0.25);
        }

        .custom-toggler {
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 8px 12px;
            color: var(--primary);
            font-size: 1.1rem;
            background: #fff;
        }

        .custom-toggler:focus {
            outline: none;
            box-shadow: 0 0 0 4px rgba(201, 162, 92, 0.2);
        }

        /* ===== 页面横幅 ===== */
        .page-banner {
            background: linear-gradient(135deg, rgba(14, 28, 58, 0.92), rgba(27, 47, 94, 0.78)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 90px 0 80px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -40px;
            right: -30px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(201, 162, 92, 0.12);
        }

        .page-banner .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb-nav {
            display: flex;
            gap: 8px;
            align-items: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 22px;
        }

        .breadcrumb-nav a {
            color: rgba(255, 255, 255, 0.8);
        }

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

        .breadcrumb-nav i {
            font-size: 0.7rem;
            margin: 0 4px;
        }

        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: 1px;
            margin-bottom: 16px;
            color: #fff;
        }

        .page-banner .banner-text {
            font-size: 1.05rem;
            max-width: 720px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 28px;
        }

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

        .banner-tags .tag-chip {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 30px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-size: 0.82rem;
            font-weight: 500;
            backdrop-filter: blur(6px);
        }

        /* ===== 通用 Section ===== */
        .section {
            padding: 88px 0;
        }

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

        .section-title-area {
            text-align: center;
            margin-bottom: 54px;
        }

        .section-eyebrow {
            display: inline-block;
            background: rgba(201, 162, 92, 0.14);
            color: var(--accent-dark);
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 1px;
            padding: 6px 18px;
            border-radius: 30px;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 2.15rem;
            font-weight: 800;
            color: var(--text-heading);
            line-height: 1.4;
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 660px;
            margin: 0 auto;
        }

        /* ===== 登录方式卡片 ===== */
        .method-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 26px;
        }

        .method-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }

        .method-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(201, 162, 92, 0.5);
        }

        .method-card .method-icon {
            width: 68px;
            height: 68px;
            border-radius: 18px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.6rem;
            margin: 0 auto 20px;
            box-shadow: 0 8px 20px rgba(27, 47, 94, 0.22);
        }

        .method-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 10px;
        }

        .method-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .method-card .method-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
        }

        .method-card .method-link i {
            font-size: 0.75rem;
            transition: transform var(--transition);
        }

        .method-card .method-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 登入步骤 ===== */
        .step-section {
            background: var(--bg-deep);
            position: relative;
            overflow: hidden;
        }

        .step-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(201, 162, 92, 0.15), transparent 70%);
        }

        .step-section .section-title {
            color: #fff;
        }

        .step-section .section-subtitle {
            color: rgba(255, 255, 255, 0.65);
        }

        .step-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            counter-reset: step;
        }

        .step-item {
            position: relative;
            padding: 36px 28px;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(8px);
            transition: background var(--transition), transform var(--transition);
        }

        .step-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }

        .step-item::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: 24px;
            right: 26px;
            font-size: 2.2rem;
            font-weight: 800;
            color: rgba(201, 162, 92, 0.3);
            line-height: 1;
        }

        .step-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #1b2f5e;
            font-size: 1.25rem;
            margin-bottom: 20px;
            box-shadow: 0 6px 18px rgba(201, 162, 92, 0.3);
        }

        .step-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 推荐资源 ===== */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

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

        .resource-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .resource-card .cover-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--bg-soft);
        }

        .resource-card .cover-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .resource-card:hover .cover-wrap img {
            transform: scale(1.05);
        }

        .cover-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(14, 28, 58, 0.35));
        }

        .resource-card .card-body {
            padding: 26px 26px 24px;
        }

        .resource-card .card-tag {
            display: inline-block;
            background: rgba(201, 162, 92, 0.15);
            color: var(--accent-dark);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 30px;
            margin-bottom: 12px;
        }

        .resource-card h3 {
            font-size: 1.12rem;
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.5;
            margin-bottom: 10px;
        }

        .resource-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .resource-card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .resource-card .card-meta i {
            margin-right: 4px;
            color: var(--accent);
        }

        /* ===== 安全提示 ===== */
        .security-section {
            background: linear-gradient(135deg, #f7f3ec 0%, var(--bg-white) 60%, #f0f3f9 100%);
            position: relative;
        }

        .security-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .security-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .security-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 360px;
        }

        .security-stats {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 22px;
            margin-top: 30px;
        }

        .stat-box {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
        }

        .stat-box .stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-box .stat-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

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

        .security-list li {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 14px 0;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.95rem;
            color: var(--text-body);
        }

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

        .security-list li i {
            color: var(--accent);
            font-size: 1.1rem;
            margin-top: 3px;
            flex-shrink: 0;
        }

        .security-list li strong {
            color: var(--text-heading);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-white);
        }

        .faq-wrap {
            max-width: 840px;
            margin: 0 auto;
        }

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

        .faq-card:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-card .faq-q {
            width: 100%;
            background: transparent;
            border: none;
            text-align: left;
            padding: 20px 24px;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-heading);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            transition: background var(--transition);
        }

        .faq-card .faq-q:hover {
            background: var(--bg-soft);
        }

        .faq-card .faq-q i {
            color: var(--accent);
            font-size: 0.9rem;
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-card .faq-a {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.8;
        }

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

        .faq-card.open .faq-a {
            max-height: 300px;
            padding: 0 24px 22px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            left: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(201, 162, 92, 0.12);
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            right: -50px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
            max-width: 740px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 16px;
            color: #fff;
        }

        .cta-content p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.82);
            line-height: 1.9;
            margin-bottom: 30px;
        }

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

        .btn-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 32px;
            border-radius: 40px;
            font-size: 0.95rem;
            font-weight: 600;
            border: none;
            transition: all var(--transition);
            cursor: pointer;
        }

        .btn-accent {
            background: var(--accent);
            color: #1b2f5e;
        }

        .btn-accent:hover {
            background: var(--accent-light);
            color: #122244;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(201, 162, 92, 0.35);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.6);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-deep);
            color: rgba(255, 255, 255, 0.75);
            padding: 70px 0 0;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 46px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand .brand {
            color: #fff !important;
            margin-bottom: 16px;
        }

        .footer-brand .brand-icon {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: #1b2f5e;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
            margin-bottom: 0;
        }

        .footer-links h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .footer-links a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            padding: 5px 0;
            transition: color var(--transition), padding-left var(--transition);
        }

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

        .footer-bottom {
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            margin: 0;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }

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

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

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

            .security-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

        @media (max-width: 768px) {
            .header-flex {
                gap: 12px;
            }

            .header-search {
                order: 3;
                max-width: none;
                flex: 0 0 100%;
            }

            .page-banner {
                padding: 64px 0 56px;
            }

            .page-banner h1 {
                font-size: 2rem;
            }

            .section {
                padding: 64px 0;
            }

            .section-title {
                font-size: 1.6rem;
            }

            .section-title-area {
                margin-bottom: 40px;
            }

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

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

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

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

            .footer-top {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .cta-content h2 {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 520px) {
            .method-grid {
                grid-template-columns: 1fr;
            }

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

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

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

            .breadcrumb-nav {
                font-size: 0.78rem;
            }

            .page-banner h1 {
                font-size: 1.65rem;
            }

            .banner-tags .tag-chip {
                font-size: 0.75rem;
                padding: 4px 12px;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: stretch;
            }

            .btn-custom {
                justify-content: center;
            }

            .footer-bottom {
                justify-content: center;
                text-align: center;
            }
        }

/* roulang page: category2 */
:root {
  --primary: #0a2540;
  --primary-light: #143a5e;
  --accent: #c9a227;
  --accent-soft: #f0d98c;
  --bg-body: #f4f6fa;
  --bg-white: #ffffff;
  --text: #1a2634;
  --text-muted: #6b7a90;
  --border: #e4eaf0;
  --radius: 14px;
  --radius-lg: 22px;
  --radius-pill: 50px;
  --shadow-sm: 0 2px 12px rgba(10, 37, 64, .06);
  --shadow-md: 0 10px 32px rgba(10, 37, 64, .09);
  --shadow-lg: 0 24px 55px rgba(10, 37, 64, .13);
  --transition: all .28s cubic-bezier(.4, 0, .2, 1);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-body);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; margin: 0; padding: 0; }
.container { max-width: 1240px; padding: 0 24px; }

/* ===== Header / Navbar ===== */
.header-navbar {
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 1080;
  box-shadow: 0 4px 20px rgba(10, 37, 64, .05);
}
.header-flex { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: .5px;
  white-space: nowrap;
}
.brand:hover { color: var(--accent); }
.brand-icon {
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  border-radius: 12px;
  font-size: 18px;
  box-shadow: 0 4px 15px rgba(10, 37, 64, .28);
}
.header-search { flex: 1 1 auto; max-width: 480px; }
.search-form {
  display: flex;
  background: var(--bg-body);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 4px 4px 4px 18px;
  transition: var(--transition);
}
.search-form:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(201, 162, 39, .12);
  background: #fff;
}
.search-form input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: 14px;
  color: var(--text);
  min-width: 0;
}
.search-form button {
  width: 42px;
  height: 42px;
  border: none;
  border-radius: 50%;
  background: var(--accent);
  color: var(--primary);
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  cursor: pointer;
}
.search-form button:hover { background: var(--accent-soft); }
.header-nav { margin-left: auto; }
.header-nav .navbar-nav { flex-direction: row; gap: 4px; align-items: center; }
.header-nav .nav-link {
  font-weight: 600;
  font-size: 14px;
  color: var(--text);
  padding: 8px 16px !important;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  transition: var(--transition);
}
.header-nav .nav-link:hover { color: var(--accent); background: rgba(201, 162, 39, .08); }
.header-nav .nav-link.active {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 5px 18px rgba(10, 37, 64, .24);
}
.custom-toggler {
  border: none;
  background: var(--primary);
  color: #fff;
  border-radius: 10px;
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  padding: 0;
  transition: var(--transition);
}
.custom-toggler:hover { background: var(--accent); color: var(--primary); }

/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  padding: 90px 0 70px;
  background: linear-gradient(135deg, rgba(10, 37, 64, .94), rgba(20, 58, 94, .82)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
  overflow: hidden;
}
.page-hero::after {
  content: "";
  position: absolute;
  bottom: -40px;
  right: 5%;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(201, 162, 39, .2);
  filter: blur(20px);
}
.hero-breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .14);
  backdrop-filter: blur(8px);
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  color: rgba(255, 255, 255, .85);
  margin-bottom: 28px;
}
.hero-breadcrumb a:hover { color: var(--accent-soft); }
.hero-breadcrumb i { font-size: 12px; color: rgba(255, 255, 255, .5); }
.page-hero h1 {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.page-hero .lead {
  font-size: 17px;
  color: rgba(255, 255, 255, .8);
  max-width: 720px;
  margin-bottom: 30px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ===== Buttons ===== */
.btn-primary-custom {
  background: var(--accent);
  color: var(--primary);
  font-weight: 700;
  border: none;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 8px 22px rgba(201, 162, 39, .35);
}
.btn-primary-custom:hover {
  background: var(--accent-soft);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(201, 162, 39, .45);
}
.btn-ghost-light {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, .5);
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-ghost-light:hover {
  background: rgba(255, 255, 255, .1);
  color: #fff;
  border-color: #fff;
  transform: translateY(-2px);
}

/* ===== Section Common ===== */
.section-block { padding: 78px 0; }
.section-block.bg-white { background: var(--bg-white); }
.section-block.bg-soft { background: var(--bg-body); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(201, 162, 39, .1);
  color: #8a7010;
  font-size: 13px;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
  letter-spacing: 1px;
}
.section-head h2 {
  font-size: 34px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: .5px;
  margin-bottom: 14px;
}
.section-head p {
  color: var(--text-muted);
  font-size: 15px;
}

/* ===== Prepare Cards ===== */
.prepare-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  text-align: center;
  transition: var(--transition);
  height: 100%;
}
.prepare-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(201, 162, 39, .35);
}
.prepare-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 18px;
  box-shadow: 0 8px 22px rgba(10, 37, 64, .22);
}
.prepare-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}
.prepare-card p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 0;
}
.prepare-card .badge-tip {
  display: inline-block;
  font-size: 12px;
  color: #8a7010;
  background: rgba(201, 162, 39, .08);
  padding: 3px 12px;
  border-radius: 20px;
  margin-top: 12px;
}

/* ===== Register Method Cards ===== */
.method-card {
  border: none;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  height: 100%;
  background: var(--bg-white);
}
.method-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}
.method-card .card-img-wrap {
  position: relative;
  overflow: hidden;
  height: 200px;
}
.method-card .card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.method-card:hover .card-img-wrap img { transform: scale(1.05); }
.method-card .card-img-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(10, 37, 64, .42));
}
.method-card .method-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  background: var(--accent);
  color: var(--primary);
  font-size: 12px;
  font-weight: 800;
  padding: 6px 14px;
  border-radius: 20px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, .18);
}
.method-card .card-body { padding: 28px; }
.method-card .card-body h3 { font-size: 20px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.method-card .card-body p { font-size: 14px; color: var(--text-muted); margin-bottom: 18px; }
.method-card .method-steps { padding: 0; margin: 0 0 18px; }
.method-card .method-steps li {
  font-size: 13px;
  color: var(--text);
  padding: 5px 0 5px 24px;
  position: relative;
}
.method-card .method-steps li::before {
  content: "\f00c";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  left: 0;
  top: 5px;
  color: var(--accent);
  font-size: 12px;
}
.method-link {
  color: var(--primary);
  font-weight: 700;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.method-link:hover { color: var(--accent); gap: 10px; }

/* ===== Steps Timeline ===== */
.steps-section {
  background: linear-gradient(140deg, #0a2540, #123354);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.steps-section::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(201, 162, 39, .12);
}
.steps-section .section-head h2 { color: #fff; }
.steps-section .section-head p { color: rgba(255, 255, 255, .7); }
.steps-section .section-tag { background: rgba(201, 162, 39, .18); color: var(--accent-soft); }
.step-timeline {
  position: relative;
  padding: 20px 0;
}
.step-timeline::before {
  content: "";
  position: absolute;
  left: 32px;
  top: 40px;
  bottom: 40px;
  width: 2px;
  background: rgba(255, 255, 255, .14);
}
.step-item {
  display: flex;
  gap: 24px;
  position: relative;
  margin-bottom: 30px;
}
.step-num {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  border-radius: 20px;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .15);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 800;
  color: var(--accent);
  z-index: 1;
}
.step-content {
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: var(--radius-lg);
  padding: 22px 26px;
  flex: 1;
  transition: var(--transition);
}
.step-item:hover .step-content {
  background: rgba(255, 255, 255, .09);
  transform: translateX(4px);
}
.step-content h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: #fff;
}
.step-content p { font-size: 14px; color: rgba(255, 255, 255, .72); margin: 0; }
.step-content .step-time {
  font-size: 12px;
  color: var(--accent-soft);
  margin-top: 8px;
  display: inline-block;
  background: rgba(201, 162, 39, .14);
  padding: 3px 12px;
  border-radius: 16px;
}

/* ===== Safety / Info Split ===== */
.info-split {
  display: flex;
  align-items: center;
  gap: 50px;
}
.info-split .info-img {
  flex: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.info-split .info-img img { width: 100%; height: 380px; object-fit: cover; }
.info-split .info-img .img-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(10, 37, 64, .85));
  padding: 50px 24px 20px;
  color: #fff;
  font-size: 14px;
}
.info-split .info-content { flex: 1; }
.info-split .info-content h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 18px;
}
.info-split .info-content > p { color: var(--text-muted); font-size: 15px; margin-bottom: 24px; }
.info-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--border);
}
.info-feature-list li:last-child { border-bottom: none; }
.info-feature-list .feature-ico {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(201, 162, 39, .12);
  color: #8a7010;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  flex-shrink: 0;
}
.info-feature-list .feature-text h4 { font-size: 16px; font-weight: 700; color: var(--primary); margin: 0 0 4px; }
.info-feature-list .feature-text p { font-size: 14px; color: var(--text-muted); margin: 0; }

/* ===== Notice Cards ===== */
.notice-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 26px 28px;
  display: flex;
  gap: 18px;
  transition: var(--transition);
  height: 100%;
}
.notice-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.notice-ico {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  color: var(--primary);
  font-size: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.notice-card h3 { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 6px; }
.notice-card p { font-size: 14px; color: var(--text-muted); margin: 0; }

/* ===== FAQ Accordion ===== */
.faq-wrap { max-width: 850px; margin: 0 auto; }
.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow-sm); }
.faq-item summary {
  padding: 22px 28px;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: var(--transition);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i {
  color: var(--accent);
  font-size: 14px;
  width: 18px;
  text-align: center;
  transition: transform .3s ease;
}
.faq-item[open] summary i { transform: rotate(135deg); }
.faq-item[open] { border-color: rgba(201, 162, 39, .35); }
.faq-item .faq-answer {
  padding: 0 28px 22px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.85;
  border-top: 1px dashed var(--border);
  margin: 0 28px 0;
  padding-left: 0;
  padding-right: 0;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 70px 0;
  background: linear-gradient(135deg, rgba(10, 37, 64, .95), rgba(20, 58, 94, .88)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  text-align: center;
  color: #fff;
}
.cta-section h2 {
  font-size: 34px;
  font-weight: 800;
  margin-bottom: 14px;
}
.cta-section p {
  color: rgba(255, 255, 255, .75);
  max-width: 600px;
  margin: 0 auto 30px;
  font-size: 16px;
}
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer {
  background: #0b1d2f;
  color: rgba(255, 255, 255, .75);
  padding: 60px 0 0;
  border-top: 4px solid var(--accent);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 50px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.footer-brand .brand { color: #fff; font-size: 22px; margin-bottom: 16px; }
.footer-brand p {
  font-size: 14px;
  color: rgba(255, 255, 255, .6);
  max-width: 380px;
  line-height: 1.8;
}
.footer-links h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: .5px;
}
.footer-links a {
  display: block;
  color: rgba(255, 255, 255, .65);
  font-size: 14px;
  padding: 7px 0;
  transition: var(--transition);
}
.footer-links a:hover { color: var(--accent-soft); padding-left: 6px; }
.footer-bottom {
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, .45);
  border-top: 1px solid rgba(255, 255, 255, .06);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .header-flex { gap: 12px; }
  .header-search { order: 3; max-width: 100%; flex-basis: 100%; margin-top: 10px; }
  .header-nav { order: 2; margin-left: auto; }
  .page-hero h1 { font-size: 38px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 36px; }
}
@media (max-width: 768px) {
  body { font-size: 15px; }
  .section-block { padding: 56px 0; }
  .page-hero { padding: 64px 0 50px; }
  .page-hero h1 { font-size: 30px; }
  .page-hero .lead { font-size: 15px; }
  .hero-breadcrumb { font-size: 12px; }
  .header-search { order: 3; }
  .header-nav .nav-link { padding: 6px 12px !important; font-size: 13px; }
  .section-head h2 { font-size: 28px; }
  .step-timeline::before { left: 20px; }
  .step-num { width: 48px; height: 48px; border-radius: 14px; font-size: 18px; }
  .step-content { padding: 18px 20px; }
  .info-split { flex-direction: column; gap: 30px; }
  .info-split .info-img img { height: 280px; }
  .cta-section h2 { font-size: 28px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .header-flex {
    display: grid;
    grid-template-columns: 1fr auto;
    row-gap: 10px;
  }
  .header-search { order: 3; grid-column: 1 / -1; }
  .header-nav { order: 2; grid-column: 1 / -1; margin-left: 0; }
  .header-nav .navbar-nav {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
  }
  .header-nav .nav-link {
    display: block;
    padding: 12px 16px !important;
    border-radius: 10px;
  }
  .page-hero h1 { font-size: 26px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn-primary-custom,
  .hero-actions .btn-ghost-light {
    width: 100%;
    justify-content: center;
  }
  .method-card .card-img-wrap { height: 170px; }
  .step-item { gap: 14px; }
  .step-num { width: 40px; height: 40px; font-size: 15px; border-radius: 12px; }
  .step-timeline::before { left: 14px; }
  .step-content { padding: 14px 16px; }
  .step-content h3 { font-size: 15px; }
  .step-item { flex-direction: column; }
  .step-timeline::before { display: none; }
  .step-num { margin-bottom: 4px; }
  .faq-item summary { padding: 18px 20px; font-size: 15px; }
  .cta-section h2 { font-size: 24px; }
  .cta-actions { flex-direction: column; }
  .cta-actions .btn-primary-custom,
  .cta-actions .btn-ghost-light { width: 100%; justify-content: center; }
}
@media (min-width: 992px) {
  .header-nav .navbar-nav { gap: 0; }
}

/* roulang page: category3 */
/* ===== Design Tokens ===== */
:root {
  --c-primary: #1b2a5e;
  --c-primary-light: #2a3f7a;
  --c-accent: #e5a83e;
  --c-accent-dark: #d4942e;
  --c-bg: #f6f8fc;
  --c-bg-light: #ffffff;
  --c-bg-dark: #0c1325;
  --c-text: #1c2333;
  --c-text-light: #5a6678;
  --c-border: #e6ebf2;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 12px rgba(15, 24, 48, 0.06);
  --shadow-md: 0 8px 30px rgba(15, 24, 48, 0.10);
  --shadow-lg: 0 18px 50px rgba(15, 24, 48, 0.16);
  --transition: all 0.3s ease;
}

/* ===== Base / Reset ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--c-bg-light);
  color: var(--c-text);
  line-height: 1.7;
  font-size: 15px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  color: var(--c-primary);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
button,
input {
  font-family: inherit;
}
ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: 1.35;
}
.container {
  max-width: 1280px;
}

/* ===== Header / Navbar ===== */
.header-navbar {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(22, 34, 66, 0.06);
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 1030;
  transition: var(--transition);
}
.header-navbar.is-scrolled {
  box-shadow: 0 8px 30px rgba(15, 24, 48, 0.08);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 19px;
  color: var(--c-text);
  line-height: 1.2;
  white-space: nowrap;
}
.brand:hover {
  color: var(--c-text);
}
.brand-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light));
  border-radius: 12px;
  color: #fff;
  font-size: 18px;
  box-shadow: 0 6px 18px rgba(27, 42, 94, 0.25);
  flex-shrink: 0;
}
.custom-toggler {
  border: 1px solid var(--c-border) !important;
  background: #fff !important;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-primary);
  font-size: 18px;
  box-shadow: var(--shadow-sm);
}
.custom-toggler:focus {
  box-shadow: 0 0 0 4px rgba(27, 42, 94, 0.12) !important;
}
.header-search {
  width: 100%;
}
.search-form {
  position: relative;
  display: flex;
  align-items: center;
  background: #f3f6fb;
  border: 1px solid var(--c-border);
  border-radius: 50px;
  padding: 4px;
  transition: var(--transition);
}
.search-form:focus-within {
  border-color: var(--c-primary);
  box-shadow: 0 0 0 4px rgba(27, 42, 94, 0.08);
  background: #fff;
}
.search-form input {
  flex: 1;
  border: 0;
  background: transparent;
  padding: 8px 14px;
  font-size: 14px;
  color: var(--c-text);
  outline: none;
  min-width: 0;
}
.search-form input::placeholder {
  color: #9aa5bc;
}
.search-form button {
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  background: var(--c-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}
.search-form button:hover {
  background: var(--c-primary-light);
}

@media (min-width: 992px) {
  .header-flex {
    display: flex;
    align-items: center;
    gap: 28px;
  }
  .header-search {
    flex: 1;
    max-width: 360px;
    margin: 0 auto;
  }
  .header-nav {
    margin-left: auto;
  }
  .header-nav .navbar-nav {
    display: flex;
    align-items: center;
    gap: 4px;
  }
  .header-nav .nav-link {
    font-size: 15px;
    font-weight: 600;
    color: var(--c-text-light);
    padding: 8px 16px;
    border-radius: 10px;
    transition: var(--transition);
    white-space: nowrap;
  }
  .header-nav .nav-link:hover {
    color: var(--c-primary);
    background: #eef2fb;
  }
  .header-nav .nav-link.active {
    color: var(--c-primary);
    background: linear-gradient(135deg, rgba(27, 42, 94, 0.08), rgba(27, 42, 94, 0.04));
    font-weight: 700;
  }
}

@media (max-width: 991.98px) {
  .header-flex {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    row-gap: 12px;
  }
  .brand {
    font-size: 17px;
  }
  .brand-icon {
    width: 36px;
    height: 36px;
    font-size: 16px;
  }
  .header-search {
    grid-column: 1 / -1;
    order: 3;
  }
  .header-nav {
    grid-column: 1 / -1;
    order: 4;
    padding-top: 12px;
    border-top: 1px solid var(--c-border);
    margin-top: 2px;
  }
  .header-nav .nav-link {
    padding: 12px 14px;
    border-radius: 10px;
    font-weight: 600;
    color: var(--c-text);
  }
  .header-nav .nav-link:hover {
    background: #f2f5fb;
  }
  .header-nav .nav-link.active {
    background: rgba(27, 42, 94, 0.08);
    color: var(--c-primary);
    font-weight: 700;
  }
}

/* ===== Button System ===== */
.btn {
  border-radius: 50px;
  font-weight: 600;
  padding: 11px 28px;
  transition: var(--transition);
}
.btn-primary {
  background: var(--c-primary);
  border-color: var(--c-primary);
}
.btn-primary:hover {
  background: var(--c-primary-light);
  border-color: var(--c-primary-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(27, 42, 94, 0.25);
}
.btn-outline-light {
  border-color: rgba(255, 255, 255, 0.6);
  color: #fff;
}
.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
  color: #fff;
  transform: translateY(-2px);
}
.btn-lg {
  padding: 14px 34px;
  font-size: 16px;
}
.btn:focus {
  box-shadow: 0 0 0 4px rgba(27, 42, 94, 0.15);
}

/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  padding: 130px 0 110px;
  background-image: linear-gradient(135deg, rgba(8, 15, 36, 0.86), rgba(27, 42, 94, 0.74)), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: #fff;
}
.hero-inner {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 7px 18px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 26px;
  backdrop-filter: blur(6px);
  letter-spacing: 0.5px;
}
.page-hero h1 {
  font-size: 52px;
  font-weight: 800;
  margin-bottom: 18px;
  line-height: 1.2;
  letter-spacing: -1px;
}
.hero-text {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.82);
  max-width: 640px;
  margin: 0 auto 34px;
  line-height: 1.8;
}
.hero-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 44px;
}
.hero-proof {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
}
.avatar-group {
  display: flex;
  align-items: center;
}
.avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 3px solid #fff;
  background: linear-gradient(135deg, var(--c-accent), #f6c56a);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-bg-dark);
  margin-left: -12px;
}
.avatar:first-child {
  margin-left: 0;
}
.avatar:nth-child(2) {
  background: linear-gradient(135deg, #5b7bd5, #3f5cbd);
  color: #fff;
}
.avatar:nth-child(3) {
  background: linear-gradient(135deg, #22b8a5, #17998a);
  color: #fff;
}
.avatar:last-child {
  background: var(--c-bg-dark);
  color: var(--c-accent);
  font-size: 12px;
  font-weight: 800;
}
.proof-meta {
  text-align: left;
}
.proof-stars {
  color: var(--c-accent);
  font-size: 14px;
  letter-spacing: 2px;
  margin-bottom: 2px;
}
.proof-meta span {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
}

/* ===== Section Base ===== */
.section {
  padding: 90px 0;
}
.section-alt {
  background: var(--c-bg);
}
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 52px;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(27, 42, 94, 0.08);
  color: var(--c-primary);
  font-weight: 700;
  font-size: 13px;
  padding: 7px 16px;
  border-radius: 50px;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: 38px;
  font-weight: 800;
  color: var(--c-text);
  margin-bottom: 14px;
}
.section-head p {
  color: var(--c-text-light);
  font-size: 16px;
  line-height: 1.8;
}

/* ===== About / Core ===== */
.about-section .row {
  align-items: center;
}
.about-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.about-media img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}
.about-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 24, 48, 0.02), rgba(15, 24, 48, 0.22));
}
.about-content {
  padding-left: 20px;
}
.about-content .section-tag {
  margin-bottom: 20px;
}
.about-content h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.3;
}
.about-content > p {
  color: var(--c-text-light);
  font-size: 16px;
  line-height: 1.85;
  margin-bottom: 26px;
}
.check-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 12px 0;
  border-bottom: 1px dashed var(--c-border);
}
.check-list li:last-child {
  border-bottom: 0;
}
.check-list .check-icon {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  border-radius: 10px;
  background: rgba(229, 168, 62, 0.15);
  color: var(--c-accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}
.check-list .list-text {
  font-weight: 600;
  color: var(--c-text);
  line-height: 1.6;
}
.check-list .list-text small {
  display: block;
  font-weight: 400;
  color: var(--c-text-light);
  font-size: 14px;
}

/* ===== Safety Cards ===== */
.safety-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-sm);
  height: 100%;
  transition: var(--transition);
}
.safety-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}
.safety-card .card-thumb {
  height: 220px;
  overflow: hidden;
  position: relative;
}
.safety-card .card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.safety-card:hover .card-thumb img {
  transform: scale(1.06);
}
.safety-card .card-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 24, 48, 0.02), rgba(15, 24, 48, 0.18));
}
.safety-card .card-body {
  padding: 28px 26px 24px;
}
.safety-card .card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}
.card-tag {
  display: inline-block;
  background: rgba(27, 42, 94, 0.07);
  color: var(--c-primary);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 50px;
  letter-spacing: 0.3px;
}
.safety-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 10px;
}
.safety-card p {
  font-size: 14px;
  color: var(--c-text-light);
  line-height: 1.75;
  margin-bottom: 18px;
}
.safety-card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--c-primary);
  font-weight: 700;
  font-size: 14px;
}
.safety-card .card-link:hover {
  gap: 12px;
  color: var(--c-accent-dark);
}

/* ===== Stats Section ===== */
.stats-section {
  position: relative;
  background-image: linear-gradient(135deg, rgba(8, 15, 36, 0.92), rgba(27, 42, 94, 0.80)), url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 90px 0;
  color: #fff;
  background-attachment: fixed;
}
.stats-section::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(15, 24, 48, 0.2);
  pointer-events: none;
}
.stats-section .container {
  position: relative;
  z-index: 1;
}
.stat-item {
  text-align: center;
  padding: 24px 12px;
}
.stat-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 18px;
  border-radius: 20px;
  background: rgba(229, 168, 62, 0.15);
  border: 1px solid rgba(229, 168, 62, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  color: var(--c-accent);
}
.stat-number {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1px;
  color: #fff;
  margin-bottom: 6px;
}
.stat-number span {
  font-size: 26px;
  font-weight: 700;
  margin-left: 2px;
}
.stat-label {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.72);
}
@media (max-width: 767.98px) {
  .stats-section {
    background-attachment: scroll;
  }
  .stat-number {
    font-size: 36px;
  }
}

/* ===== Process Section ===== */
.process-item {
  text-align: center;
  padding: 32px 20px;
  position: relative;
  height: 100%;
}
.process-icon {
  width: 76px;
  height: 76px;
  border-radius: 24px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light));
  color: #fff;
  font-size: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  box-shadow: 0 10px 30px rgba(27, 42, 94, 0.28);
  transition: var(--transition);
}
.process-item:hover .process-icon {
  transform: translateY(-6px) rotate(-4deg);
}
.process-step {
  display: inline-block;
  background: rgba(229, 168, 62, 0.14);
  color: var(--c-accent-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1px;
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 12px;
}
.process-item h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--c-text);
}
.process-item p {
  font-size: 14px;
  color: var(--c-text-light);
  line-height: 1.7;
  margin-bottom: 0;
}
.process-line-wrap {
  position: relative;
}
@media (min-width: 992px) {
  .process-line-wrap::before {
    content: '';
    position: absolute;
    top: 70px;
    left: 18%;
    right: 18%;
    height: 2px;
    background: linear-gradient(90deg, rgba(27, 42, 94, 0.08), rgba(229, 168, 62, 0.35), rgba(27, 42, 94, 0.08));
    border-radius: 2px;
  }
}

/* ===== FAQ Section ===== */
.faq-layout {
  max-width: 860px;
  margin: 0 auto;
}
.faq-accordion .accordion-item {
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 16px;
  background: #fff;
  box-shadow: var(--shadow-sm);
}
.faq-accordion .accordion-button {
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 700;
  color: var(--c-text);
  background: #fff;
  box-shadow: none;
  outline: none;
  border: 0;
}
.faq-accordion .accordion-button::after {
  background-image: none;
  content: '\f067';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 14px;
  color: var(--c-primary);
  width: auto;
  height: auto;
  transform: none;
}
.faq-accordion .accordion-button:not(.collapsed) {
  color: var(--c-primary);
  background: #f6f8fc;
}
.faq-accordion .accordion-button:not(.collapsed)::after {
  content: '\f068';
}
.faq-accordion .accordion-button:focus {
  box-shadow: 0 0 0 4px rgba(27, 42, 94, 0.10) !important;
}
.faq-accordion .accordion-body {
  padding: 0 24px 24px;
  color: var(--c-text-light);
  line-height: 1.85;
  font-size: 15px;
  background: #fff;
  border-top: 1px solid rgba(230, 235, 242, 0.6);
}
.faq-accordion .accordion-body strong {
  color: var(--c-text);
}

/* ===== CTA Section ===== */
.cta-section {
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light));
  color: #fff;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before,
.cta-section::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
}
.cta-section::before {
  width: 300px;
  height: 300px;
  top: -120px;
  right: 10%;
}
.cta-section::after {
  width: 180px;
  height: 180px;
  bottom: -60px;
  left: 8%;
}
.cta-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}
.cta-inner h2 {
  font-size: 34px;
  font-weight: 800;
  margin-bottom: 16px;
}
.cta-inner p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 16px;
  margin-bottom: 30px;
}
.cta-btns {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-accent {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: var(--c-bg-dark);
}
.btn-accent:hover {
  background: #f0b552;
  border-color: #f0b552;
  color: var(--c-bg-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(229, 168, 62, 0.4);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--c-bg-dark);
  color: #9aa5bc;
  padding: 70px 0 0;
}
.site-footer .brand {
  color: #fff;
  margin-bottom: 16px;
}
.site-footer .brand-icon {
  background: linear-gradient(135deg, var(--c-accent), #f6c56a);
  color: var(--c-bg-dark);
  box-shadow: 0 6px 18px rgba(229, 168, 62, 0.3);
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 50px;
  padding-bottom: 50px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 0;
  max-width: 320px;
}
.footer-links h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
  padding-bottom: 12px;
  position: relative;
}
.footer-links h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 3px;
  border-radius: 3px;
  background: var(--c-accent);
}
.footer-links a {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #9aa5bc;
  padding: 7px 0;
  font-size: 14px;
  text-decoration: none;
  transition: var(--transition);
}
.footer-links a i {
  font-size: 12px;
  color: var(--c-accent);
}
.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}

/* ===== Responsive ===== */
@media (max-width: 1199.98px) {
  .stat-number {
    font-size: 42px;
  }
}
@media (max-width: 991.98px) {
  .section {
    padding: 70px 0;
  }
  .about-media img {
    height: 340px;
  }
  .about-content {
    padding-left: 0;
    margin-top: 30px;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}
@media (max-width: 767.98px) {
  .page-hero {
    padding: 90px 0 70px;
  }
  .page-hero h1 {
    font-size: 34px;
  }
  .hero-text {
    font-size: 16px;
  }
  .section-head h2 {
    font-size: 28px;
  }
  .about-content h2 {
    font-size: 27px;
  }
  .about-media img {
    height: 260px;
  }
  .stat-item {
    padding: 16px 8px;
  }
  .stat-number {
    font-size: 32px;
  }
  .process-line-wrap::before {
    display: none;
  }
  .cta-inner h2 {
    font-size: 26px;
  }
}
@media (max-width: 520px) {
  .footer-top {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .hero-btns .btn {
    width: 100%;
  }
  .avatar:nth-child(n+4) {
    display: none;
  }
  .btn-lg {
    padding: 12px 22px;
    font-size: 15px;
  }
}

/* roulang page: article */
:root {
  --primary: #2f5dff;
  --primary-dark: #1e40c8;
  --primary-light: #e8edff;
  --secondary: #06b6d4;
  --accent: #f59e0b;
  --success: #10b981;
  --dark: #0b1527;
  --body-bg: #f0f4fb;
  --card-bg: #ffffff;
  --text: #16233a;
  --text-muted: #5e6f8d;
  --border: #e3eaf3;
  --radius: 18px;
  --radius-sm: 12px;
  --radius-pill: 999px;
  --shadow: 0 6px 24px rgba(20, 40, 80, 0.08);
  --shadow-hover: 0 14px 40px rgba(20, 40, 80, 0.14);
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background-color: var(--body-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

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

.container {
  max-width: 1200px;
}

/* ===== Header ===== */
.header-navbar {
  position: sticky;
  top: 0;
  z-index: 1050;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 20px rgba(20, 40, 80, 0.05);
  padding: 0;
}

.header-flex {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  padding: 0.875rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.5px;
  white-space: nowrap;
  flex-shrink: 0;
}

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

.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: 0 6px 16px rgba(47, 93, 255, 0.3);
}

.header-search {
  flex: 1;
  order: 3;
  width: 100%;
  max-width: 100%;
}

.search-form {
  display: flex;
  align-items: center;
  background: #f1f5fb;
  border: 1px solid #dbe4f0;
  border-radius: 999px;
  padding: 0.4rem 0.4rem 0.4rem 1.1rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.search-form:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(47, 93, 255, 0.12);
  background: #fff;
}

.search-form input {
  flex: 1;
  border: none;
  background: transparent;
  outline: none;
  font-size: 0.92rem;
  color: var(--text);
  min-width: 0;
}

.search-form input::placeholder {
  color: #94a3b8;
}

.search-form button {
  width: 38px;
  height: 38px;
  border: none;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
  transition: background var(--transition), transform var(--transition);
}

.search-form button:hover {
  background: var(--primary-dark);
  transform: scale(1.05);
}

.header-nav {
  margin-left: auto;
  order: 4;
}

.header-nav .navbar-nav {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.header-nav .nav-link {
  padding: 0.55rem 1rem;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text);
  border-radius: 999px;
  transition: background var(--transition), color var(--transition);
}

.header-nav .nav-link:hover,
.header-nav .nav-link.active {
  background: var(--primary-light);
  color: var(--primary);
}

.custom-toggler {
  border: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: #f1f5fb;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: none;
}

.custom-toggler:focus {
  box-shadow: 0 0 0 4px rgba(47, 93, 255, 0.12);
}

@media (max-width: 991px) {
  .header-search {
    order: 2;
    flex: 1 1 100%;
  }
  .header-nav {
    order: 3;
    flex: 1 1 100%;
    margin-left: 0;
  }
  .header-nav .navbar-nav {
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
    padding: 0.5rem 0;
  }
  .header-nav .nav-link {
    text-align: left;
    padding: 0.75rem 1rem;
    border-radius: 10px;
  }
}

@media (min-width: 992px) {
  .header-search {
    flex: 1 1 320px;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
    order: 0;
  }
  .header-nav {
    margin-left: 0;
    order: 2;
  }
}

/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  padding: 4rem 0 3.2rem;
  background: linear-gradient(135deg, #0b1527 0%, #1a2f56 55%, #1d4ed8 130%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  background-blend-mode: overlay;
  color: #fff;
  overflow: hidden;
}

.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 80% 20%, rgba(47, 93, 255, 0.4) 0%, transparent 60%);
  pointer-events: none;
}

.page-banner .container {
  position: relative;
  z-index: 2;
}

.breadcrumb-wrap {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.45rem;
  font-size: 0.87rem;
  margin-bottom: 1.2rem;
  color: rgba(255, 255, 255, 0.7);
}

.breadcrumb-wrap a {
  color: rgba(255, 255, 255, 0.8);
}

.breadcrumb-wrap a:hover {
  color: #fff;
}

.breadcrumb-wrap i {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.45);
}

.breadcrumb-wrap .current {
  color: #fff;
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.page-banner h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.25;
  margin: 0 0 0.5rem;
  letter-spacing: 1px;
  word-break: break-word;
}

.page-banner .banner-desc {
  color: rgba(255, 255, 255, 0.76);
  font-size: 1rem;
  margin: 0;
  max-width: 720px;
}

@media (max-width: 576px) {
  .page-banner {
    padding: 2.6rem 0 2rem;
  }
}

/* ===== Article Section ===== */
.article-section {
  padding: 3.5rem 0 2rem;
  position: relative;
}

.article-card {
  background: var(--card-bg);
  border-radius: 22px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: clamp(1.5rem, 3.5vw, 3rem);
  overflow: hidden;
}

.article-header {
  margin-bottom: 1.6rem;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.badge-cat {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.32rem 0.85rem;
  border-radius: 999px;
}

.badge-light {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: #f1f5fb;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.32rem 0.85rem;
  border-radius: 999px;
}

.article-title {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 0.9rem;
  letter-spacing: 0.5px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  color: var(--text-muted);
  font-size: 0.87rem;
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.article-cover {
  border-radius: 16px;
  overflow: hidden;
  margin: 1.6rem 0 1.8rem;
  box-shadow: 0 8px 30px rgba(20, 40, 80, 0.12);
}

.article-cover img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.article-content {
  font-size: 1rem;
  line-height: 1.9;
  color: #2b3855;
}

.article-content .lead {
  font-size: 1.08rem;
  color: var(--text-muted);
  border-left: 4px solid var(--primary);
  padding-left: 1rem;
  margin-bottom: 1.4rem;
}

.article-content p {
  margin-bottom: 1.2rem;
}

.article-content h2 {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text);
  margin: 2rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.article-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin: 1.6rem 0 0.8rem;
}

.article-content ul,
.article-content ol {
  padding-left: 1.4rem;
  margin-bottom: 1.2rem;
}

.article-content ul li,
.article-content ol li {
  margin-bottom: 0.45rem;
}

.article-content blockquote {
  background: var(--primary-light);
  border-radius: 12px;
  padding: 1rem 1.4rem;
  border-left: 4px solid var(--primary);
  color: var(--text);
  margin: 1.6rem 0;
  font-style: italic;
}

.article-content img {
  border-radius: 12px;
  margin: 1.4rem 0;
}

.article-content a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-bottom-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 1.4rem 0;
  margin-top: 1.8rem;
  border-top: 1px solid var(--border);
}

.mini-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-right: 0.3rem;
}

.tag-item {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: #f1f5fb;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 1rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text);
  transition: all var(--transition);
}

.tag-item:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}

.discussion-card {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: linear-gradient(135deg, #f8faff, #f0f4fb);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.2rem 1.5rem;
  margin-top: 1.4rem;
}

.discussion-head {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.avatar-group {
  display: flex;
  align-items: center;
}

.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid #fff;
  margin-left: -8px;
}

.avatar:first-child {
  margin-left: 0;
}

.avatar.more {
  background: #c7d2fe;
  color: var(--primary-dark);
}

.discussion-info p {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 600;
}

.discussion-info small {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.article-footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--border);
}

/* ===== Sidebar ===== */
.sidebar-card {
  background: var(--card-bg);
  border-radius: 18px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-bottom: 1.4rem;
}

.sidebar-title {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1.1rem;
  padding-bottom: 0.7rem;
  border-bottom: 2px solid var(--primary-light);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sidebar-title i {
  color: var(--primary);
}

.side-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.side-nav-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  background: #f8faff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0.85rem 1rem;
  transition: all var(--transition);
  color: var(--text);
}

.side-nav-item:hover {
  background: var(--primary-light);
  border-color: rgba(47, 93, 255, 0.3);
  color: var(--primary);
  transform: translateX(3px);
}

.side-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  color: #fff;
  flex-shrink: 0;
}

.side-icon.blue {
  background: linear-gradient(135deg, #2f5dff, #38bdf8);
}

.side-icon.green {
  background: linear-gradient(135deg, #10b981, #34d399);
}

.side-icon.amber {
  background: linear-gradient(135deg, #f59e0b, #fbbf24);
}

.side-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.side-text strong {
  font-size: 0.92rem;
  font-weight: 700;
}

.side-text small {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.side-nav-item > .fa-chevron-right {
  font-size: 0.75rem;
  color: #b6c2d9;
  flex-shrink: 0;
}

.topic-list {
  display: flex;
  flex-direction: column;
}

.topic-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.7rem 0.3rem;
  border-bottom: 1px dashed var(--border);
  transition: all var(--transition);
}

.topic-item:last-child {
  border-bottom: none;
}

.topic-item:hover {
  background: #f8faff;
  padding-left: 0.6rem;
}

.rank {
  width: 28px;
  height: 28px;
  border-radius: 9px;
  background: #f1f5fb;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.topic-item:nth-child(1) .rank {
  background: var(--primary);
  color: #fff;
}

.topic-item:nth-child(2) .rank {
  background: var(--secondary);
  color: #fff;
}

.topic-item:nth-child(3) .rank {
  background: var(--accent);
  color: #fff;
}

.topic-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.topic-info strong {
  font-size: 0.9rem;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.topic-info small {
  font-size: 0.76rem;
  color: var(--text-muted);
}

.tip-card {
  background: linear-gradient(135deg, #fffbeb, #fff7ed);
  border-color: rgba(245, 158, 11, 0.25);
}

.tip-card .sidebar-title {
  border-bottom-color: rgba(245, 158, 11, 0.25);
}

.tip-card .sidebar-title i {
  color: var(--accent);
}

.tip-card p {
  font-size: 0.88rem;
  color: #7c5a2a;
  line-height: 1.7;
  margin-bottom: 0.8rem;
}

.tip-card a {
  font-size: 0.85rem;
  font-weight: 600;
}

/* ===== Empty State ===== */
.empty-state {
  text-align: center;
  padding: 3.5rem 1.5rem;
}

.empty-icon {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.4rem;
}

.empty-state h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 0.6rem;
}

.empty-state p {
  color: var(--text-muted);
  margin-bottom: 1.4rem;
}

/* ===== Buttons ===== */
.btn {
  border-radius: 12px;
  font-weight: 600;
  padding: 0.6rem 1.4rem;
  font-size: 0.92rem;
  transition: all var(--transition);
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--primary);
  color: #fff !important;
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(47, 93, 255, 0.25);
}

.btn-outline-primary {
  border: 1px solid rgba(47, 93, 255, 0.4);
  color: var(--primary);
  background: transparent;
}

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

.btn-soft {
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 12px;
  font-weight: 600;
  padding: 0.6rem 1.4rem;
  font-size: 0.92rem;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

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

/* ===== Recommend Section ===== */
.recommend-section {
  padding: 3.5rem 0;
}

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 2.5rem;
}

.section-overline {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--primary);
  background: var(--primary-light);
  padding: 0.3rem 1rem;
  border-radius: 999px;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}

.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.section-head p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.info-card {
  background: var(--card-bg);
  border-radius: 18px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
  height: 100%;
  transition: transform var(--transition), box-shadow var(--transition);
}

.info-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.info-card-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

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

.info-card:hover .info-card-img img {
  transform: scale(1.05);
}

.info-card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.45), transparent 60%);
}

.info-card-cat {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  z-index: 2;
}

.info-card-body {
  padding: 1.4rem 1.4rem 1.6rem;
}

.info-card-body h3 {
  font-size: 1.04rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  line-height: 1.45;
}

.info-card-body h3 a {
  color: var(--text);
}

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

.info-card-body p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.info-card-more {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
}

/* ===== FAQ Section ===== */
.faq-section {
  padding: 3rem 0 4rem;
  background: #fff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.custom-accordion .accordion-item {
  border: 1px solid var(--border);
  border-radius: 16px !important;
  margin-bottom: 1rem;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(20, 40, 80, 0.04);
}

.custom-accordion .accordion-item:first-child,
.custom-accordion .accordion-item:last-child {
  border-radius: 16px !important;
}

.custom-accordion .accordion-button {
  background: #fff;
  color: var(--text);
  font-weight: 700;
  font-size: 1rem;
  padding: 1.15rem 1.4rem;
  box-shadow: none;
  border: none;
  transition: background var(--transition), color var(--transition);
}

.custom-accordion .accordion-button:not(.collapsed) {
  background: var(--primary-light);
  color: var(--primary);
}

.custom-accordion .accordion-button:focus {
  box-shadow: 0 0 0 4px rgba(47, 93, 255, 0.1);
}

.custom-accordion .accordion-button::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%232f5dff'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}

.custom-accordion .accordion-body {
  padding: 1.2rem 1.4rem;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.8;
  border-top: 1px solid var(--border);
  background: #fafbff;
}

/* ===== CTA Section ===== */
.cta-section {
  padding: 3.5rem 0;
}

.cta-box {
  background: linear-gradient(135deg, #0b1527, #16294d 60%, #1d4ed8);
  border-radius: 24px;
  padding: clamp(2rem, 5vw, 3.5rem);
  color: #fff;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(11, 21, 39, 0.3);
}

.cta-box::before {
  content: "";
  position: absolute;
  right: -10%;
  top: -30%;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(47, 93, 255, 0.35), transparent 70%);
}

.cta-content {
  position: relative;
  z-index: 2;
  flex: 1 1 320px;
}

.cta-content h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  margin-bottom: 0.6rem;
}

.cta-content p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.95rem;
  margin: 0;
}

.cta-search {
  position: relative;
  z-index: 2;
  flex: 1 1 320px;
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  padding: 0.55rem 0.55rem 0.55rem 1.2rem;
  backdrop-filter: blur(8px);
  transition: all var(--transition);
}

.cta-search:focus-within {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.5);
}

.cta-search input {
  flex: 1;
  border: none;
  background: transparent;
  outline: none;
  color: #fff;
  font-size: 0.95rem;
  min-width: 0;
}

.cta-search input::placeholder {
  color: rgba(255, 255, 255, 0.55);
}

.cta-search button {
  width: 42px;
  height: 42px;
  border: none;
  border-radius: 50%;
  background: #fff;
  color: var(--primary);
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform var(--transition);
  flex-shrink: 0;
}

.cta-search button:hover {
  transform: scale(1.08);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 3.5rem 0 2rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .brand {
  color: #fff;
  margin-bottom: 0.8rem;
}

.footer-brand .brand-icon {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
}

.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.55);
  max-width: 340px;
}

.footer-links h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.1rem;
  position: relative;
  padding-bottom: 0.6rem;
}

.footer-links h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 30px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.footer-links a {
  display: block;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.88rem;
  padding: 0.35rem 0;
  transition: all var(--transition);
}

.footer-links a:hover {
  color: #fff;
  padding-left: 5px;
}

.footer-bottom {
  padding-top: 1.6rem;
  display: flex;
  justify-content: center;
  text-align: center;
}

.footer-bottom p {
  margin: 0;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .footer-top {
    grid-template-columns: 1.3fr 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .container {
    padding-left: 1.1rem;
    padding-right: 1.1rem;
  }
  .article-section {
    padding: 2rem 0 1.5rem;
  }
  .article-card {
    padding: 1.4rem;
  }
  .article-cover {
    margin: 1.2rem 0;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .discussion-card {
    flex-direction: column;
    align-items: flex-start;
  }
  .cta-box {
    flex-direction: column;
  }
}

@media (max-width: 576px) {
  .brand {
    font-size: 1.02rem;
  }
  .brand-icon {
    width: 38px;
    height: 38px;
    font-size: 1rem;
  }
  .article-meta {
    gap: 0.8rem;
  }
  .avatar {
    width: 32px;
    height: 32px;
    font-size: 0.7rem;
  }
  .discussion-card {
    padding: 1rem;
  }
  .btn {
    width: auto;
  }
}