/* roulang page: index */
:root {
    --primary: #0b1e3a;
    --primary-dark: #071426;
    --primary-light: #1a3a6a;
    --accent: #e8b54a;
    --accent-dark: #d19c32;
    --accent-light: #f5cd7a;
    --bg: #ffffff;
    --bg-alt: #f4f6fa;
    --bg-deep: #0d1e39;
    --text: #17263a;
    --text-muted: #5f7084;
    --text-light: #93a5b8;
    --border: #e3e9f0;
    --radius: 18px;
    --radius-md: 12px;
    --shadow: 0 8px 30px rgba(11, 30, 58, 0.08);
    --shadow-lg: 0 18px 50px rgba(11, 30, 58, 0.14);
    --shadow-accent: 0 8px 26px rgba(232, 181, 74, 0.3);
    --transition: all .3s cubic-bezier(.4, 0, .2, 1);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.75;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-dark); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { padding-left: 0; list-style: none; }
.container { max-width: 1220px; padding-left: 24px; padding-right: 24px; }

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 600;
    border-radius: 50px;
    padding: 11px 28px;
    line-height: 1.4;
    transition: var(--transition);
    border: 2px solid transparent;
    letter-spacing: .02em;
}
.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.btn-primary:hover {
    background: var(--primary-light);
    border-color: var(--primary-light);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}
.btn-accent {
    background: var(--accent);
    color: var(--primary-dark);
    border-color: var(--accent);
}
.btn-accent:hover {
    background: var(--accent-light);
    border-color: var(--accent-light);
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-accent);
}
.btn-outline-light {
    border-color: rgba(255, 255, 255, .7);
    color: #fff;
    background: transparent;
}
.btn-outline-light:hover {
    background: rgba(255, 255, 255, .12);
    border-color: #fff;
    color: #fff;
    transform: translateY(-2px);
}
.btn-lg { padding: 14px 36px; font-size: 1.05rem; }

/* ===== Header / Nav ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1080;
    background: rgba(255, 255, 255, .9);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    transition: box-shadow .3s;
}
.site-header.scrolled { box-shadow: var(--shadow); }
.navbar { padding-top: 16px; padding-bottom: 16px; }
.navbar-brand {
    font-size: 1.65rem;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -.01em;
    display: flex;
    align-items: center;
    gap: 8px;
}
.navbar-brand i { color: var(--accent); font-size: 1.4rem; }
.navbar-brand span { color: var(--accent); }
.navbar-brand:hover { color: var(--primary); }
.navbar-toggler {
    border: none;
    padding: 6px 10px;
    background: transparent;
    font-size: 1.4rem;
    color: var(--primary);
    box-shadow: none !important;
    outline: none;
}
.navbar-toggler:focus { box-shadow: none; }
.navbar-nav {
    gap: 6px;
    align-items: center;
}
.nav-link {
    color: var(--text) !important;
    font-weight: 500;
    font-size: .96rem;
    padding: 8px 18px !important;
    border-radius: 50px;
    transition: var(--transition);
    position: relative;
}
.nav-link:hover { color: var(--primary) !important; background: rgba(11, 30, 58, .05); }
.nav-link.active {
    color: var(--primary) !important;
    font-weight: 700;
    background: rgba(11, 30, 58, .06);
}
.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 18px;
    height: 3px;
    border-radius: 3px;
    background: var(--accent);
}
.btn-cta {
    margin-left: 10px;
    background: var(--accent);
    color: var(--primary-dark);
    border: none;
    border-radius: 50px;
    padding: 10px 26px;
    font-weight: 700;
    font-size: .95rem;
}
.btn-cta:hover {
    background: var(--accent-light);
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-accent);
}

/* ===== Hero ===== */
.hero {
    position: relative;
    padding: 150px 0 130px;
    background-size: cover;
    background-position: center;
    color: #fff;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg, rgba(11, 30, 58, .94) 0%, rgba(11, 30, 58, .78) 45%, rgba(11, 30, 58, .35) 100%);
}
.hero::after {
    content: '';
    position: absolute;
    bottom: -120px;
    right: -100px;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(232, 181, 74, .25), transparent 70%);
}
.hero .container { position: relative; z-index: 2; }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, .12);
    border: 1px solid rgba(255, 255, 255, .25);
    border-radius: 50px;
    padding: 7px 20px;
    font-size: .85rem;
    font-weight: 500;
    letter-spacing: .03em;
    backdrop-filter: blur(6px);
    margin-bottom: 24px;
}
.hero-badge i { color: var(--accent); }
.hero h1 {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -.015em;
}
.hero h1 .highlight {
    color: var(--accent);
    position: relative;
}
.hero p {
    font-size: 1.15rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, .85);
    max-width: 580px;
    margin-bottom: 36px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ===== Section ===== */
.section-block { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-tag {
    display: inline-block;
    background: rgba(232, 181, 74, .12);
    color: var(--accent-dark);
    font-size: .82rem;
    font-weight: 700;
    padding: 6px 18px;
    border-radius: 50px;
    letter-spacing: .08em;
    text-transform: uppercase;
    margin-bottom: 14px;
}
.section-header h2 {
    font-size: 2.3rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 14px;
    letter-spacing: -.01em;
}
.section-header p {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 640px;
    margin: 0 auto 20px;
}

/* ===== Features ===== */
.features { background: var(--bg); }
.feature-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 38px 30px;
    height: 100%;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    opacity: 0;
    transition: var(--transition);
}
.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}
.feature-card:hover::before { opacity: 1; }
.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 22px;
    background: rgba(232, 181, 74, .12);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: var(--accent-dark);
    transition: var(--transition);
}
.feature-card:hover .feature-icon {
    background: var(--accent);
    color: var(--primary-dark);
    transform: scale(1.05) rotate(-4deg);
}
.feature-card h3 { font-size: 1.2rem; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
.feature-card p { color: var(--text-muted); font-size: .93rem; line-height: 1.7; margin-bottom: 0; }

/* ===== Category Cards ===== */
.category-entry { background: var(--bg-alt); }
.category-card {
    display: block;
    border-radius: var(--radius);
    overflow: hidden;
    background: #fff;
    border: 1px solid var(--border);
    height: 100%;
    transition: var(--transition);
    position: relative;
}
.category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}
.category-card .cover-wrap {
    position: relative;
    height: 200px;
    overflow: hidden;
}
.category-card .cover-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .6s;
}
.category-card:hover .cover-wrap img { transform: scale(1.08); }
.category-card .cover-wrap::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(11, 30, 58, .55));
}
.category-card .category-body { padding: 28px; }
.category-card .category-body h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
}
.category-card .category-body p {
    color: var(--text-muted);
    font-size: .93rem;
    line-height: 1.7;
    margin-bottom: 20px;
}
.category-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    font-size: .92rem;
    color: var(--primary);
    transition: var(--transition);
}
.category-link i { font-size: .8rem; transition: transform .3s; }
.category-card:hover .category-link { color: var(--accent-dark); }
.category-card:hover .category-link i { transform: translateX(4px); }

/* ===== News List ===== */
.latest-news { background: var(--bg); }
.news-wrap {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow);
}
.news-item {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    padding: 22px 0;
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}
.news-item:first-child { padding-top: 0; }
.news-item:last-child { border-bottom: none; padding-bottom: 0; }
.news-item:hover { padding-left: 10px; }
.news-icon {
    flex-shrink: 0;
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: rgba(232, 181, 74, .12);
    color: var(--accent-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}
.news-content { flex: 1; min-width: 0; }
.news-meta {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 6px;
}
.news-cat {
    background: rgba(11, 30, 58, .06);
    color: var(--primary);
    font-size: .78rem;
    font-weight: 700;
    padding: 3px 12px;
    border-radius: 50px;
}
.news-time {
    color: var(--text-light);
    font-size: .82rem;
}
.news-title {
    font-size: 1.08rem;
    font-weight: 600;
    margin-bottom: 4px;
    line-height: 1.5;
}
.news-title a { color: var(--text); }
.news-title a:hover { color: var(--primary); }
.news-desc {
    color: var(--text-muted);
    font-size: .9rem;
    line-height: 1.6;
    margin-bottom: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-empty {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
}

/* ===== Stats ===== */
.stats-section {
    background: var(--bg-deep);
    position: relative;
    overflow: hidden;
    padding: 80px 0;
    color: #fff;
}
.stats-section::before {
    content: '';
    position: absolute;
    top: -100px;
    left: -100px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(232, 181, 74, .2), transparent 70%);
}
.stats-section::after {
    content: '';
    position: absolute;
    bottom: -80px;
    right: -60px;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, .08), transparent 70%);
}
.stat-block {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 20px;
}
.stat-icon {
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 14px;
}
.stat-num {
    font-size: 2.8rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 8px;
    letter-spacing: -.02em;
}
.stat-label {
    color: rgba(255, 255, 255, .65);
    font-size: .95rem;
}

/* ===== Comparison ===== */
.comparison { background: var(--bg-alt); }
.compare-card {
    border-radius: var(--radius);
    padding: 40px;
    height: 100%;
    border: 1px solid var(--border);
    background: #fff;
    transition: var(--transition);
}
.compare-card.good { border-top: 4px solid var(--accent); box-shadow: var(--shadow); }
.compare-card.bad { border-top: 4px solid #dbe2ea; background: #fafbfd; }
.compare-card h3 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.compare-card.good h3 { color: var(--primary); }
.compare-card.bad h3 { color: var(--text-light); }
.compare-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px dashed var(--border);
    font-size: .95rem;
    color: var(--text);
}
.compare-list li:last-child { border-bottom: none; }
.compare-list li i { margin-top: 4px; font-size: .85rem; }
.compare-list .fa-check { color: #2e9d5b; }
.compare-list .fa-xmark { color: #c0392b; }
.compare-list .fa-minus { color: var(--text-light); }

/* ===== Rating ===== */
.rating-line { margin-bottom: 14px; }
.rating-line .rating-label {
    display: flex;
    justify-content: space-between;
    font-size: .9rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 6px;
}
.rating-bar {
    height: 8px;
    background: var(--border);
    border-radius: 20px;
    overflow: hidden;
}
.rating-bar .bar-fill {
    height: 100%;
    border-radius: 20px;
    background: linear-gradient(90deg, var(--accent-dark), var(--accent-light));
    transition: width 1s ease;
}

/* ===== FAQ ===== */
.faq { background: var(--bg); }
.accordion {
    max-width: 860px;
    margin: 0 auto;
}
.accordion-item {
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-md) !important;
    margin-bottom: 14px;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 2px 8px rgba(11, 30, 58, .03);
    transition: var(--transition);
}
.accordion-item:hover { box-shadow: var(--shadow); }
.accordion-button {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    padding: 20px 24px;
    background: #fff;
    border: none !important;
    box-shadow: none !important;
}
.accordion-button:not(.collapsed) {
    color: var(--primary);
    background: rgba(232, 181, 74, .05);
}
.accordion-button:focus { box-shadow: none !important; }
.accordion-button::after {
    background-size: 1.1rem;
    transition: var(--transition);
}
.accordion-body {
    padding: 0 24px 22px;
    color: var(--text-muted);
    font-size: .95rem;
    line-height: 1.75;
}

/* ===== CTA ===== */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(232, 181, 74, .3), transparent 70%);
}
.cta-box {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 680px;
    margin: 0 auto;
    color: #fff;
}
.cta-box h2 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 16px;
}
.cta-box p {
    color: rgba(255, 255, 255, .8);
    font-size: 1.05rem;
    margin-bottom: 34px;
    line-height: 1.7;
}
.cta-box .btn {
    background: var(--accent);
    color: var(--primary-dark);
    border: none;
    font-weight: 700;
    padding: 14px 40px;
    border-radius: 50px;
}
.cta-box .btn:hover {
    background: var(--accent-light);
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, .18);
}

/* ===== Footer ===== */
.site-footer {
    background: #081426;
    color: rgba(255, 255, 255, .6);
    padding: 80px 0 0;
}
.footer-brand {
    font-size: 1.5rem;
    font-weight: 800;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 18px;
}
.footer-brand i { color: var(--accent); }
.footer-brand span { color: var(--accent); }
.site-footer p { font-size: .9rem; line-height: 1.8; }
.footer-title {
    color: #fff;
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 22px;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a {
    color: rgba(255, 255, 255, .6);
    font-size: .92rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    font-size: .9rem;
}
.footer-contact i { color: var(--accent); width: 16px; }
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .08);
    margin-top: 60px;
    padding: 22px 0;
    text-align: center;
    font-size: .85rem;
    color: rgba(255, 255, 255, .4);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero { padding: 120px 0 100px; }
    .hero h1 { font-size: 2.6rem; }
    .section-block { padding: 80px 0; }
    .section-header h2 { font-size: 2rem; }
}
@media (max-width: 768px) {
    .navbar-collapse {
        background: #fff;
        margin-top: 14px;
        padding: 20px 16px;
        border-radius: var(--radius-md);
        box-shadow: var(--shadow);
        border: 1px solid var(--border);
    }
    .navbar-nav { gap: 2px; }
    .nav-link.active::after { display: none; }
    .btn-cta { margin-left: 0; margin-top: 10px; display: inline-flex; width: 100%; justify-content: center; }
    .hero { padding: 90px 0 80px; }
    .hero h1 { font-size: 2.2rem; }
    .hero p { font-size: 1rem; }
    .section-block { padding: 64px 0; }
    .section-header { margin-bottom: 40px; }
    .section-header h2 { font-size: 1.7rem; }
    .news-wrap { padding: 24px; }
    .stats-section { padding: 60px 0; }
    .stat-num { font-size: 2rem; }
    .compare-card { margin-bottom: 20px; }
    .cta-section { padding: 70px 0; }
    .cta-box h2 { font-size: 1.7rem; }
    .site-footer { padding: 60px 0 0; }
    .footer-bottom { margin-top: 40px; }
}
@media (max-width: 520px) {
    .hero { padding: 70px 0 60px; }
    .hero h1 { font-size: 1.8rem; }
    .hero p { font-size: .95rem; }
    .hero-actions .btn { width: 100%; }
    .section-header h2 { font-size: 1.5rem; }
    .feature-card { padding: 28px 20px; }
    .category-card .cover-wrap { height: 160px; }
    .category-card .category-body { padding: 20px; }
    .news-wrap { padding: 16px; }
    .news-item { flex-direction: column; gap: 12px; }
    .news-item:hover { padding-left: 0; }
    .compare-card { padding: 28px 20px; }
    .accordion-button { font-size: .92rem; padding: 16px 18px; }
    .cta-box h2 { font-size: 1.4rem; }
    .cta-box .btn { width: 100%; }
}

/* ===== Back-to-top ===== */
.back-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    cursor: pointer;
    box-shadow: var(--shadow);
}
.back-top.show { opacity: 1; visibility: visible; }
.back-top:hover { background: var(--accent); color: var(--primary-dark); transform: translateY(-4px); }

/* roulang page: article */
:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #eef2ff;
    --accent: #f59e0b;
    --accent-light: #fef3c7;
    --dark: #0b1220;
    --dark-2: #1e293b;
    --text: #1e293b;
    --text-muted: #64748b;
    --bg-light: #f5f7fb;
    --border: #e2e8f0;
    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 22px;
    --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
    --shadow: 0 12px 34px rgba(15, 23, 42, 0.1);
    --shadow-lg: 0 24px 60px rgba(15, 23, 42, 0.16);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Inter', 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
}
*,
*::before,
*::after {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
html,
body {
    overflow-x: hidden;
}
body {
    font-family: var(--font);
    color: var(--text);
    background: #fff;
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}
a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}
a:hover {
    color: var(--primary-dark);
}
img,
svg {
    max-width: 100%;
    display: inline-block;
}
button,
input {
    font-family: inherit;
    border: none;
    background: transparent;
}
.container {
    max-width: 1240px;
    padding-left: 20px;
    padding-right: 20px;
}
section {
    position: relative;
}
.section-block {
    padding: 90px 0;
}
.section-head {
    text-align: center;
    margin-bottom: 48px;
}
.section-head .section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.84rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    padding: 7px 18px;
    border-radius: 100px;
    margin-bottom: 14px;
}
.section-head h2 {
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1.25;
    color: var(--dark);
    margin-bottom: 12px;
}
.section-head p {
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1rem;
}
.btn {
    border-radius: 10px;
    font-weight: 600;
    letter-spacing: 0.01em;
    padding: 0.65rem 1.35rem;
    transition: var(--transition);
}
.btn-lg {
    padding: 0.8rem 1.75rem;
    border-radius: 12px;
}
.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
}
.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(79, 70, 229, 0.32);
}
.btn-outline-light {
    border-color: rgba(255, 255, 255, 0.55);
    color: #fff;
}
.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.14);
    border-color: #fff;
    color: #fff;
    transform: translateY(-2px);
}
.card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-4px);
}
.bg-light {
    background: var(--bg-light) !important;
}

/* ===== Header ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    box-shadow: 0 1px 10px rgba(15, 23, 42, 0.05);
}
.site-header .navbar {
    padding: 16px 0;
}
.navbar-brand {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--dark);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.navbar-brand i {
    color: var(--accent);
    font-size: 1.4rem;
}
.navbar-brand span {
    color: var(--primary);
}
.navbar-brand:hover {
    color: var(--dark);
}
.navbar-toggler {
    border: none;
    color: var(--dark);
    font-size: 1.5rem;
    padding: 0.35rem 0.6rem;
    border-radius: var(--radius-sm);
    box-shadow: none !important;
}
.navbar-toggler:focus {
    outline: 2px solid var(--primary);
}
.navbar-nav {
    align-items: center;
    gap: 4px;
    margin-right: 22px;
}
.navbar-nav .nav-link {
    font-weight: 600;
    color: var(--text);
    padding: 9px 17px;
    border-radius: 100px;
    font-size: 0.96rem;
    transition: var(--transition);
}
.navbar-nav .nav-link:hover {
    color: var(--primary);
    background: var(--primary-light);
}
.navbar-nav .nav-link.active {
    color: var(--primary);
    background: var(--primary-light);
    font-weight: 700;
}
.btn-cta {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border-radius: 100px;
    padding: 9px 22px;
    font-weight: 700;
    font-size: 0.93rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 14px rgba(79, 70, 229, 0.28);
    transition: var(--transition);
}
.btn-cta:hover {
    color: #fff;
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 25px rgba(79, 70, 229, 0.38);
}

/* ===== Article Hero ===== */
.article-hero {
    background-image: linear-gradient(135deg, rgba(11, 18, 32, 0.92), rgba(79, 70, 229, 0.72)), url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center center;
    padding: 100px 0 72px;
    color: #fff;
    position: relative;
}
.article-hero-content {
    max-width: 860px;
}
.article-hero-content h1 {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.3;
    margin: 16px 0 14px;
    letter-spacing: 0.01em;
}
.article-category {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(6px);
    color: #fff;
    padding: 7px 16px;
    border-radius: 100px;
    font-size: 0.84rem;
    font-weight: 600;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 18px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.92rem;
    margin-top: 8px;
}
.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

/* ===== Article Main ===== */
.article-main {
    background: #fff;
}
.article-content {
    padding: 34px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
}
.article-text {
    font-size: 1.02rem;
    line-height: 1.95;
    color: var(--text);
}
.article-text h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
    margin: 34px 0 14px;
}
.article-text h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--dark);
    margin: 28px 0 12px;
}
.article-text p {
    margin-bottom: 16px;
}
.article-text ul,
.article-text ol {
    padding-left: 1.4rem;
    margin-bottom: 18px;
}
.article-text li {
    margin-bottom: 8px;
}
.article-text img {
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    margin: 18px 0;
    max-width: 100%;
    height: auto;
}
.article-text blockquote {
    border-left: 4px solid var(--primary);
    background: var(--primary-light);
    padding: 16px 22px;
    border-radius: 0 12px 12px 0;
    margin: 24px 0;
    color: var(--dark-2);
}
.article-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-top: 42px;
    padding-top: 22px;
    border-top: 1px solid var(--border);
}
.article-tags .tag-label {
    font-weight: 700;
    color: var(--dark);
    margin-right: 4px;
    display: inline-flex;
    align-items: center;
    gap: 7px;
}
.tag-item {
    background: var(--bg-light);
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.84rem;
    padding: 6px 15px;
    border-radius: 100px;
    transition: var(--transition);
    font-weight: 600;
}
.tag-item:hover {
    background: var(--primary-light);
    border-color: var(--primary);
    color: var(--primary);
}
.article-share {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}
.article-share .share-label {
    font-weight: 700;
    color: var(--dark);
}
.share-icons {
    display: flex;
    gap: 8px;
}
.share-icons a {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: var(--bg-light);
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: var(--transition);
}
.share-icons a:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    transform: translateY(-2px);
}
.article-not-found {
    text-align: center;
    padding: 70px 20px;
}
.article-not-found i {
    font-size: 3.5rem;
    color: var(--primary);
    margin-bottom: 20px;
    opacity: 0.7;
}
.article-not-found h2 {
    font-size: 1.7rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}
.article-not-found p {
    color: var(--text-muted);
    margin-bottom: 26px;
}

/* ===== Sidebar ===== */
.article-sidebar {
    position: sticky;
    top: 96px;
}
.sidebar-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 28px;
    margin-bottom: 24px;
}
.sidebar-card h3 {
    font-size: 1.08rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.sidebar-card h3 i {
    color: var(--primary);
}
.sidebar-cats {
    list-style: none;
    margin: 0;
    padding: 0;
}
.sidebar-cats li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 13px 14px;
    border-radius: 10px;
    background: var(--bg-light);
    border: 1px solid transparent;
    margin-bottom: 8px;
    transition: var(--transition);
    color: var(--text);
}
.sidebar-cats li a:hover {
    background: var(--primary-light);
    border-color: rgba(79, 70, 229, 0.18);
    color: var(--primary);
    transform: translateX(3px);
}
.sidebar-cats li a i {
    color: var(--primary);
    font-size: 1.1rem;
    width: 22px;
    text-align: center;
}
.sidebar-cats li a span {
    margin-left: auto;
    font-size: 0.78rem;
    color: var(--text-muted);
    background: #fff;
    padding: 3px 9px;
    border-radius: 100px;
    font-weight: 600;
}
.sidebar-latest {
    list-style: none;
    padding: 0;
    margin: 0;
}
.sidebar-latest li {
    margin-bottom: 12px;
}
.sidebar-latest li a {
    display: flex;
    align-items: center;
    gap: 13px;
    padding: 10px;
    border-radius: 10px;
    background: var(--bg-light);
    transition: var(--transition);
}
.sidebar-latest li a:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
}
.latest-thumb {
    width: 60px;
    height: 48px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--border);
}
.latest-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.latest-info {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
}
.latest-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1.35;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.latest-date {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ===== Related Posts ===== */
.related-posts {
    background: var(--bg-light);
}
.post-card {
    display: block;
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100%;
    color: var(--text);
}
.post-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
    color: var(--text);
}
.post-card-cover {
    position: relative;
    height: 180px;
    overflow: hidden;
    background: var(--dark-2);
}
.post-card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.post-card:hover .post-card-cover img {
    transform: scale(1.05);
}
.post-card-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(79, 70, 229, 0.92);
    color: #fff;
    font-size: 0.76rem;
    font-weight: 700;
    padding: 5px 12px;
    border-radius: 100px;
    backdrop-filter: blur(4px);
}
.post-card-body {
    padding: 22px;
}
.post-card-body h3 {
    font-size: 1.02rem;
    font-weight: 700;
    line-height: 1.45;
    color: var(--dark);
    margin-bottom: 8px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    min-height: 46px;
}
.post-card-body p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.65;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    margin-bottom: 16px;
    min-height: 50px;
}
.post-card-link {
    font-size: 0.84rem;
    font-weight: 700;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 7px;
}
.post-card-link i {
    transition: transform 0.3s ease;
}
.post-card:hover .post-card-link i {
    transform: translateX(4px);
}

/* ===== FAQ ===== */
.article-faq {
    background: #fff;
}
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: #fff;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition);
}
.faq-item:hover {
    box-shadow: var(--shadow);
}
.faq-item.active {
    border-color: rgba(79, 70, 229, 0.3);
    box-shadow: 0 8px 24px rgba(79, 70, 229, 0.1);
}
.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark);
    text-align: left;
    cursor: pointer;
    transition: var(--transition);
}
.faq-question i {
    color: var(--primary);
    font-size: 0.9rem;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}
.faq-item.active .faq-question i {
    transform: rotate(45deg);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}
.faq-item.active .faq-answer {
    max-height: 500px;
}
.faq-answer p {
    padding: 0 24px 20px;
    color: var(--text-muted);
    line-height: 1.8;
    margin: 0;
}

/* ===== CTA ===== */
.contact-cta {
    background-image: linear-gradient(135deg, rgba(11, 18, 32, 0.88), rgba(79, 70, 229, 0.8)), url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    padding: 90px 0;
    text-align: center;
    color: #fff;
}
.cta-inner {
    max-width: 680px;
    margin: 0 auto;
}
.cta-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 62px;
    height: 62px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.22);
    font-size: 1.5rem;
    margin-bottom: 24px;
    backdrop-filter: blur(8px);
}
.contact-cta h2 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 16px;
}
.contact-cta p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 30px;
}
.cta-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.72);
    padding: 70px 0 0;
    font-size: 0.92rem;
}
.site-footer .footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    font-size: 1.45rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
}
.site-footer .footer-brand i {
    color: var(--accent);
}
.site-footer .footer-brand span {
    color: #a5b4fc;
}
.site-footer .footer-brand:hover {
    color: #fff;
}
.site-footer p {
    line-height: 1.8;
    max-width: 330px;
}
.footer-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
}
.footer-links,
.footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-links li,
.footer-contact li {
    margin-bottom: 11px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.footer-links a {
    color: rgba(255, 255, 255, 0.72);
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 7px;
}
.footer-links a:hover {
    color: var(--accent);
    padding-left: 3px;
}
.footer-links a i {
    font-size: 0.7rem;
    color: var(--primary);
}
.footer-contact li i {
    color: var(--primary);
    width: 18px;
    text-align: center;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 48px;
    padding: 20px 0;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
}
.footer-bottom p {
    margin: 0;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .article-hero-content h1 {
        font-size: 2.1rem;
    }
    .section-block {
        padding: 70px 0;
    }
}
@media (max-width: 991px) {
    .navbar-nav {
        align-items: flex-start;
        gap: 2px;
        margin: 14px 0 10px;
        width: 100%;
    }
    .navbar-nav .nav-link {
        width: 100%;
        border-radius: 8px;
    }
    .btn-cta {
        width: 100%;
        justify-content: center;
        margin-top: 6px;
    }
    .article-sidebar {
        position: static;
        margin-top: 28px;
    }
    .article-content {
        padding: 26px;
    }
    .section-head h2 {
        font-size: 1.8rem;
    }
    .contact-cta h2 {
        font-size: 1.9rem;
    }
}
@media (max-width: 767px) {
    .section-block {
        padding: 55px 0;
    }
    .article-hero {
        padding: 72px 0 54px;
    }
    .article-hero-content h1 {
        font-size: 1.7rem;
    }
    .article-content {
        padding: 22px 18px;
        border-radius: var(--radius);
    }
    .article-text {
        font-size: 0.98rem;
    }
    .post-card-body h3 {
        min-height: 0;
    }
    .post-card-body p {
        min-height: 0;
    }
    .cta-actions .btn {
        width: 100%;
        margin-bottom: 4px;
    }
    .footer-bottom p {
        font-size: 0.82rem;
    }
}
@media (max-width: 520px) {
    .container {
        padding-left: 16px;
        padding-right: 16px;
    }
    .navbar-brand {
        font-size: 1.3rem;
    }
    .article-hero-content h1 {
        font-size: 1.45rem;
    }
    .article-meta {
        gap: 10px;
        font-size: 0.86rem;
    }
    .article-tags {
        gap: 7px;
    }
    .section-head h2 {
        font-size: 1.55rem;
    }
}

/* roulang page: category1 */
:root {
            --primary: #0f1c2e;
            --primary-light: #1a2d45;
            --primary-dark: #080f1a;
            --accent: #eab308;
            --accent-hover: #d4a106;
            --accent-light: #fef3c7;
            --bg: #f8fafc;
            --bg-alt: #eef2f7;
            --text: #1e293b;
            --muted: #64748b;
            --border: #e2e8f0;
            --white: #ffffff;
            --radius-sm: 8px;
            --radius: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(15, 28, 46, 0.06);
            --shadow: 0 8px 30px rgba(15, 28, 46, 0.08);
            --shadow-lg: 0 16px 48px rgba(15, 28, 46, 0.14);
            --transition: all 0.3s ease;
            --font-family: "Inter", "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
        }

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

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

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

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

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

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

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

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--primary);
            padding: 12px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .navbar {
            padding: 0;
        }

        .navbar-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--white);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.5px;
        }

        .navbar-brand i {
            color: var(--accent);
            font-size: 1.35rem;
        }

        .navbar-brand span {
            color: var(--accent);
        }

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

        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--white);
            padding: 6px 12px;
            border-radius: 8px;
            transition: var(--transition);
        }

        .navbar-toggler:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        .navbar-toggler:focus {
            box-shadow: none;
            border-color: var(--accent);
        }

        .navbar-nav {
            gap: 4px;
        }

        .nav-link {
            color: rgba(255, 255, 255, 0.85) !important;
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: var(--transition);
            font-size: 0.95rem;
        }

        .nav-link:hover {
            color: var(--white) !important;
            background: rgba(255, 255, 255, 0.1);
        }

        .nav-link.active {
            color: var(--accent) !important;
            background: rgba(234, 179, 8, 0.15);
        }

        .btn-cta {
            background: var(--accent);
            color: var(--primary-dark) !important;
            font-weight: 700;
            padding: 10px 22px;
            border-radius: 10px;
            margin-left: 16px;
            transition: var(--transition);
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-cta:hover {
            background: var(--accent-hover);
            color: var(--primary-dark) !important;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(234, 179, 8, 0.35);
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                padding-top: 16px;
                padding-bottom: 8px;
            }
            .btn-cta {
                margin-left: 0;
                margin-top: 12px;
                width: auto;
            }
            .nav-link {
                padding-left: 8px !important;
            }
        }

        /* ===== Hero ===== */
        .page-hero {
            background: linear-gradient(rgba(8, 15, 26, 0.82), rgba(8, 15, 26, 0.65)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 120px 0 100px;
            text-align: center;
            color: var(--white);
            position: relative;
        }

        .hero-content {
            max-width: 780px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(234, 179, 8, 0.18);
            border: 1px solid rgba(234, 179, 8, 0.3);
            color: var(--accent);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 20px;
        }

        .hero-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            color: var(--white);
        }

        .hero-content p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .hero-search {
            max-width: 520px;
            margin: 0 auto;
        }

        .search-form {
            display: flex;
            align-items: center;
            background: var(--white);
            border-radius: 50px;
            padding: 6px 6px 6px 20px;
            box-shadow: var(--shadow-lg);
        }

        .search-form i {
            color: var(--muted);
            margin-right: 10px;
            font-size: 0.95rem;
        }

        .search-form input {
            flex: 1;
            border: none;
            outline: none;
            padding: 10px 0;
            font-size: 0.95rem;
            color: var(--text);
            background: transparent;
        }

        .search-form button {
            background: var(--accent);
            border: none;
            color: var(--primary-dark);
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .search-form button:hover {
            background: var(--accent-hover);
            transform: scale(1.02);
        }

        /* ===== Section通用 ===== */
        .section {
            padding: 80px 0;
        }

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

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }

        .section-tag {
            display: inline-block;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 2px;
            margin-bottom: 12px;
            position: relative;
            padding-bottom: 6px;
        }

        .section-tag::after {
            content: '';
            display: block;
            width: 36px;
            height: 3px;
            background: var(--accent);
            border-radius: 10px;
            margin: 8px auto 0;
        }

        .section-head h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .section-head p {
            color: var(--muted);
            font-size: 1rem;
        }

        /* ===== 按钮体系 ===== */
        .btn {
            border-radius: 10px;
            font-weight: 600;
            padding: 12px 24px;
            transition: var(--transition);
            border: none;
        }

        .btn:focus {
            box-shadow: 0 0 0 3px rgba(234, 179, 8, 0.35);
        }

        .btn-accent {
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(234, 179, 8, 0.35);
        }

        .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, 0.6);
            color: var(--white);
            background: transparent;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--white);
            border-color: var(--white);
        }

        .btn-primary-custom {
            background: var(--primary);
            color: var(--white);
            font-weight: 600;
        }

        .btn-primary-custom:hover {
            background: var(--primary-light);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }

        .btn-outline {
            border: 2px solid var(--border);
            background: transparent;
            color: var(--text);
            padding: 8px 20px;
            font-size: 0.9rem;
            font-weight: 600;
            border-radius: 8px;
        }

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

        .btn-light {
            background: var(--white);
            color: var(--primary);
            font-weight: 700;
        }

        .btn-light:hover {
            background: #f0f0f0;
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }

        /* ===== 指南优势卡片 ===== */
        .feature-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            height: 100%;
            transition: var(--transition);
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            background: var(--accent-light);
            color: var(--accent);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin: 0 auto 20px;
            transition: var(--transition);
        }

        .feature-card:hover .feature-icon {
            background: var(--accent);
            color: var(--primary-dark);
        }

        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--primary);
        }

        .feature-card p {
            color: var(--muted);
            font-size: 0.92rem;
            margin-bottom: 0;
        }

        /* ===== 图文介绍 ===== */
        .guide-about {
            background: var(--bg);
        }

        .about-media {
            position: relative;
        }

        .about-media img {
            width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
        }

        .media-badge {
            position: absolute;
            bottom: 24px;
            left: 24px;
            background: var(--primary);
            color: var(--white);
            padding: 10px 16px;
            border-radius: 12px;
            font-size: 0.85rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: var(--shadow);
        }

        .media-badge i {
            color: var(--accent);
        }

        .guide-about h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .guide-about p {
            color: var(--muted);
            margin-bottom: 20px;
            font-size: 0.98rem;
        }

        .about-list {
            list-style: none;
            padding: 0;
            margin: 0 0 28px;
        }

        .about-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 0;
            font-weight: 500;
            color: var(--text);
            font-size: 0.95rem;
        }

        .about-list li i {
            color: var(--accent);
            font-size: 1.1rem;
            width: 22px;
            text-align: center;
        }

        .about-media .media-badge {
            z-index: 2;
        }

        /* ===== 指南分类卡片 ===== */
        .guide-categories {
            background: var(--bg-alt);
        }

        .category-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            height: 100%;
            transition: var(--transition);
        }

        .category-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .category-card img {
            width: 100%;
            height: 190px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

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

        .category-body {
            padding: 24px;
        }

        .badge-tag {
            display: inline-block;
            background: var(--accent-light);
            color: #a16207;
            font-size: 0.8rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .category-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .category-body p {
            color: var(--muted);
            font-size: 0.92rem;
            margin-bottom: 16px;
        }

        /* ===== 最新指南卡片 ===== */
        .guide-articles {
            background: var(--bg);
        }

        .article-card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            height: 100%;
            transition: var(--transition);
        }

        .article-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .article-img {
            position: relative;
            overflow: hidden;
        }

        .article-img img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .article-card:hover .article-img img {
            transform: scale(1.08);
        }

        .article-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 20px;
            letter-spacing: 0.5px;
        }

        .article-body {
            padding: 20px;
        }

        .article-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            line-height: 1.4;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .article-body p {
            color: var(--muted);
            font-size: 0.88rem;
            margin-bottom: 12px;
            line-height: 1.6;
        }

        .article-link {
            color: var(--accent);
            font-size: 0.88rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-link i {
            transition: transform 0.3s ease;
            font-size: 0.8rem;
        }

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

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

        /* ===== 使用流程 ===== */
        .guide-steps {
            background: var(--primary);
            color: var(--white);
        }

        .guide-steps .section-tag {
            color: var(--accent);
        }

        .guide-steps .section-tag::after {
            background: var(--accent);
        }

        .guide-steps .section-head h2 {
            color: var(--white);
        }

        .guide-steps .section-head p {
            color: rgba(255, 255, 255, 0.7);
        }

        .step-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius);
            padding: 30px 24px;
            height: 100%;
            transition: var(--transition);
        }

        .step-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-6px);
            border-color: rgba(234, 179, 8, 0.3);
        }

        .step-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            display: block;
            margin-bottom: 12px;
            line-height: 1;
        }

        .step-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--white);
        }

        .step-card p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            margin-bottom: 0;
            line-height: 1.6;
        }

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

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            margin-bottom: 16px;
            transition: var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow);
            border-color: transparent;
            transform: translateY(-2px);
        }

        .faq-item h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: flex-start;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .faq-item h3 i {
            color: var(--accent);
            margin-right: 10px;
            font-size: 1.1rem;
            margin-top: 2px;
        }

        .faq-item p {
            color: var(--muted);
            font-size: 0.9rem;
            padding-left: 30px;
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .guide-cta {
            background: var(--bg);
        }

        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-lg);
            padding: 60px 40px;
            text-align: center;
            color: var(--white);
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .cta-box::before {
            content: '';
            position: absolute;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(234, 179, 8, 0.25), transparent 70%);
            top: -100px;
            right: -80px;
            border-radius: 50%;
        }

        .cta-box::after {
            content: '';
            position: absolute;
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, rgba(234, 179, 8, 0.15), transparent 70%);
            bottom: -60px;
            left: -50px;
            border-radius: 50%;
        }

        .cta-box h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 14px;
            color: var(--white);
            position: relative;
            z-index: 1;
        }

        .cta-box p {
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 28px;
            font-size: 1rem;
            position: relative;
            z-index: 1;
        }

        .cta-actions {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 0;
            border-top: 2px solid rgba(234, 179, 8, 0.3);
        }

        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 16px;
        }

        .footer-brand i {
            color: var(--accent);
        }

        .footer-brand span {
            color: var(--accent);
        }

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

        .site-footer p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-title {
            color: var(--white);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

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

        .footer-links a i {
            font-size: 0.7rem;
        }

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

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
        }

        .footer-contact li i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 40px;
            padding: 20px 0;
            text-align: center;
        }

        .footer-bottom p {
            margin: 0;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .page-hero {
                padding: 90px 0 70px;
            }
            .hero-content h1 {
                font-size: 2.3rem;
            }
            .section {
                padding: 60px 0;
            }
            .guide-about h2 {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 70px 0 50px;
            }
            .hero-content h1 {
                font-size: 1.8rem;
            }
            .hero-content p {
                font-size: 1rem;
            }
            .section-head h2 {
                font-size: 1.5rem;
            }
            .section-head {
                margin-bottom: 36px;
            }
            .cta-box {
                padding: 40px 24px;
            }
            .cta-box h2 {
                font-size: 1.4rem;
            }
            .guide-about h2 {
                font-size: 1.4rem;
            }
            .about-media {
                margin-bottom: 24px;
            }
            .media-badge {
                bottom: 16px;
                left: 16px;
                font-size: 0.8rem;
            }
            .faq-item p {
                padding-left: 0;
            }
            .faq-item h3 {
                align-items: center;
            }
        }

        @media (max-width: 520px) {
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .hero-actions .btn {
                width: 100%;
                max-width: 280px;
            }
            .cta-actions {
                flex-direction: column;
                align-items: center;
            }
            .cta-actions .btn {
                width: 100%;
                max-width: 280px;
            }
            .search-form {
                flex-direction: column;
                padding: 12px;
                border-radius: 16px;
                gap: 10px;
            }
            .search-form input {
                width: 100%;
                padding: 8px 12px;
                border: 1px solid var(--border);
                border-radius: 30px;
                background: var(--bg);
            }
            .search-form button {
                width: 100%;
            }
            .hero-content h1 {
                font-size: 1.5rem;
            }
            .section-head h2 {
                font-size: 1.3rem;
            }
            .section-tag {
                font-size: 0.78rem;
            }
            .btn {
                padding: 10px 18px;
            }
            .step-card {
                padding: 24px 20px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1d4ed8;
            --primary-dark: #1e3a8a;
            --accent: #f59e0b;
            --accent-hover: #d97706;
            --dark: #0b1e33;
            --dark-2: #122c47;
            --bg: #f4f7fb;
            --white: #ffffff;
            --text: #0f172a;
            --text-light: #5b6779;
            --border: #e3e9f1;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 8px 30px rgba(2, 12, 27, 0.07);
            --shadow-lg: 0 20px 50px rgba(2, 12, 27, 0.12);
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

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

        button,
        input {
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.35;
            font-weight: 700;
            color: var(--text);
        }

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

        .section {
            padding: 90px 0;
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 52px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245, 158, 11, 0.12);
            color: var(--accent-hover);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1px;
            padding: 6px 18px;
            border-radius: 50px;
            margin-bottom: 14px;
            text-transform: uppercase;
        }

        .section-tag i {
            font-size: 12px;
        }

        .section-head h2 {
            font-size: clamp(28px, 3.2vw, 38px);
            margin-bottom: 14px;
        }

        .section-head p {
            color: var(--text-light);
            font-size: 16px;
            margin-bottom: 0;
        }

        .section-head.left {
            text-align: left;
            margin-left: 0;
        }

        /* ========== Header ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: linear-gradient(120deg, #08182b 0%, #102a45 100%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            box-shadow: 0 4px 24px rgba(2, 12, 27, 0.3);
        }

        .site-header .navbar {
            padding: 14px 0;
        }

        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: #ffffff;
            line-height: 1;
        }

        .navbar-brand i {
            color: var(--accent);
            font-size: 24px;
        }

        .navbar-brand span {
            color: var(--accent);
        }

        .navbar-brand:hover {
            color: #fff;
        }

        .navbar-nav {
            gap: 4px;
        }

        .nav-link {
            color: rgba(255, 255, 255, 0.78);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: 50px;
            transition: var(--transition);
        }

        .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-link.active {
            color: #fff;
            background: rgba(245, 158, 11, 0.18);
            font-weight: 600;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, #f59e0b, #f59e0b);
            color: #0b1e33;
            font-weight: 700;
            font-size: 14px;
            padding: 10px 24px;
            border-radius: 50px;
            border: none;
            margin-left: 16px;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
        }

        .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(245, 158, 11, 0.5);
            color: #0b1e33;
            background: linear-gradient(135deg, #fbbf24, #f59e0b);
        }

        .navbar-toggler {
            border: none;
            background: transparent;
            color: #fff;
            font-size: 22px;
            padding: 4px 10px;
            border-radius: 8px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            background: rgba(255, 255, 255, 0.1);
        }

        .navbar-toggler:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        /* ========== Page Hero ========== */
        .page-hero {
            position: relative;
            padding: 90px 0 100px;
            background: var(--dark);
            background-image: linear-gradient(rgba(8, 24, 43, 0.86), rgba(10, 30, 54, 0.72)), url("/assets/images/backpic/back-1.png");
            background-size: cover;
            background-position: center;
            color: #fff;
        }

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

        .breadcrumb-bar {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .breadcrumb-bar a {
            color: rgba(255, 255, 255, 0.75);
        }

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

        .breadcrumb-bar i {
            font-size: 10px;
            color: rgba(255, 255, 255, 0.4);
        }

        .page-hero h1 {
            color: #fff;
            font-size: clamp(32px, 4vw, 48px);
            font-weight: 800;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .page-hero .hero-sub {
            color: rgba(255, 255, 255, 0.82);
            font-size: 17px;
            max-width: 560px;
            line-height: 1.8;
            margin-bottom: 30px;
        }

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

        .btn-primary {
            background: var(--accent);
            border: none;
            color: #0b1e33;
            font-weight: 700;
            padding: 12px 28px;
            border-radius: 50px;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
        }

        .btn-primary:hover {
            background: #fbbf24;
            color: #0b1e33;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.5);
        }

        .btn-outline-light {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            font-weight: 600;
            padding: 11px 26px;
            border-radius: 50px;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }

        .btn-outline-light:hover {
            border-color: #fff;
            color: #fff;
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }

        .hero-card {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: 20px;
            padding: 28px;
            margin-left: 20px;
        }

        .hero-card-title {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

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

        .hero-card-list {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }

        .hero-card-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: rgba(255, 255, 255, 0.88);
            font-size: 14px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

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

        .hero-card-list li i {
            color: var(--accent);
            font-size: 13px;
            margin-top: 5px;
        }

        .hero-card-list li span {
            font-weight: 600;
            color: #fff;
        }

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

        .hero-card-link:hover {
            color: #fbbf24;
        }

        /* ========== Core Cards ========== */
        .section-core {
            background: var(--bg);
            padding: 90px 0 80px;
            position: relative;
        }

        .core-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 34px 26px;
            height: 100%;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .core-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }

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

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

        .core-icon {
            width: 58px;
            height: 58px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
            background: rgba(29, 78, 216, 0.1);
            color: var(--primary);
        }

        .core-card:nth-child(2) .core-icon {
            background: rgba(245, 158, 11, 0.12);
            color: var(--accent-hover);
        }

        .core-card:nth-child(3) .core-icon {
            background: rgba(16, 185, 129, 0.12);
            color: #10b981;
        }

        .core-card:nth-child(4) .core-icon {
            background: rgba(139, 92, 246, 0.12);
            color: #8b5cf6;
        }

        .core-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .core-card p {
            color: var(--text-light);
            font-size: 14px;
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ========== Tips Cards ========== */
        .section-tips {
            background: #fff;
            padding: 90px 0;
        }

        .tip-card {
            background: var(--bg);
            border-radius: var(--radius);
            overflow: hidden;
            height: 100%;
            border: 1px solid var(--border);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .tip-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .tip-card-img {
            position: relative;
            overflow: hidden;
            height: 190px;
        }

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

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

        .tip-card-img .badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(11, 30, 51, 0.82);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 50px;
            backdrop-filter: blur(4px);
        }

        .tip-card-body {
            padding: 24px 22px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .tip-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

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

        .tip-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-light);
            border-top: 1px solid var(--border);
            padding-top: 14px;
            margin-top: auto;
        }

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

        .tip-meta .tip-link:hover {
            color: var(--accent-hover);
        }

        /* ========== Ranking ========== */
        .section-ranking {
            background: var(--dark);
            background-image: linear-gradient(135deg, rgba(8, 24, 43, 0.96), rgba(17, 42, 68, 0.94)), url("/assets/images/backpic/back-2.png");
            background-size: cover;
            background-position: center;
            padding: 90px 0;
            color: #fff;
        }

        .section-ranking .section-head h2,
        .section-ranking .section-head p {
            color: #fff;
        }

        .section-ranking .section-head p {
            color: rgba(255, 255, 255, 0.72);
        }

        .section-ranking .section-tag {
            background: rgba(255, 255, 255, 0.12);
            color: var(--accent);
        }

        .rank-tip {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius);
            padding: 24px;
            margin-top: 30px;
        }

        .rank-tip h4 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 10px;
        }

        .rank-tip p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            margin-bottom: 0;
        }

        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .rank-item {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 14px;
            padding: 20px 22px;
            display: flex;
            align-items: center;
            gap: 18px;
            transition: var(--transition);
        }

        .rank-item:hover {
            background: rgba(255, 255, 255, 0.14);
            transform: translateX(6px);
        }

        .rank-no {
            font-size: 22px;
            font-weight: 800;
            color: var(--accent);
            width: 34px;
            text-align: center;
        }

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

        .rank-info h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 8px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .rank-bar {
            height: 6px;
            background: rgba(255, 255, 255, 0.12);
            border-radius: 10px;
            overflow: hidden;
        }

        .rank-bar-fill {
            height: 100%;
            border-radius: 10px;
            background: linear-gradient(90deg, var(--accent), #fbbf24);
        }

        .rank-score {
            color: var(--accent);
            font-weight: 700;
            font-size: 18px;
            white-space: nowrap;
        }

        /* ========== Feedback ========== */
        .section-feedback {
            background: var(--bg);
            padding: 90px 0;
        }

        .feedback-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 30px 28px;
            height: 100%;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

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

        .feedback-stars {
            color: var(--accent);
            font-size: 15px;
            margin-bottom: 16px;
            letter-spacing: 2px;
        }

        .feedback-card p {
            color: var(--text);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .feedback-user {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid var(--border);
            padding-top: 18px;
        }

        .feedback-avatar {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), #7c3aed);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .feedback-user span {
            font-size: 13px;
            color: var(--text-light);
        }

        .feedback-user strong {
            display: block;
            font-size: 14px;
            color: var(--text);
        }

        /* ========== FAQ ========== */
        .section-faq {
            background: #fff;
            padding: 90px 0;
        }

        .accordion {
            border-radius: var(--radius);
            overflow: hidden;
        }

        .accordion-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 14px !important;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .accordion-item:last-child {
            margin-bottom: 0;
        }

        .accordion-item:focus-within {
            border-color: var(--primary);
        }

        .accordion-button {
            background: var(--bg);
            color: var(--text);
            font-size: 15px;
            font-weight: 700;
            padding: 20px 24px;
            box-shadow: none !important;
            border: none;
        }

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

        .accordion-button::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%231d4ed8' viewBox='0 0 16 16'%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");
        }

        .accordion-body {
            background: #fff;
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.8;
            padding: 4px 24px 22px;
        }

        /* ========== CTA ========== */
        .section-cta {
            padding: 40px 0 90px;
            background: #fff;
        }

        .cta-box {
            background: linear-gradient(135deg, #0b1e33 0%, #14345a 100%);
            border-radius: 24px;
            padding: 60px 50px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(245, 158, 11, 0.2);
        }

        .cta-box::after {
            content: "";
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }

        .cta-box h2 {
            color: #fff;
            font-size: 30px;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }

        .cta-box p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            max-width: 520px;
            margin: 0 auto 30px;
            position: relative;
            z-index: 1;
        }

        .btn-light {
            background: var(--accent);
            border: none;
            color: #0b1e33;
            font-weight: 700;
            padding: 13px 34px;
            border-radius: 50px;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            box-shadow: 0 4px 18px rgba(245, 158, 11, 0.4);
            position: relative;
            z-index: 1;
        }

        .btn-light:hover {
            background: #fbbf24;
            color: #0b1e33;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.55);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #08182b;
            color: rgba(255, 255, 255, 0.65);
            padding: 70px 0 0;
            border-top: 3px solid var(--accent);
        }

        .site-footer .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .site-footer .footer-brand i {
            color: var(--accent);
        }

        .site-footer .footer-brand span {
            color: var(--accent);
        }

        .site-footer .footer-brand:hover {
            color: #fff;
        }

        .site-footer p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            max-width: 360px;
        }

        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 12px;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }

        .footer-links a i {
            font-size: 10px;
            color: var(--accent);
        }

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

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

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            padding: 8px 0;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-contact li i {
            color: var(--accent);
            font-size: 14px;
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            margin-top: 50px;
            text-align: center;
        }

        .footer-bottom p {
            color: rgba(255, 255, 255, 0.4);
            font-size: 13px;
            margin: 0;
        }

        /* ========== Responsive ========== */
        @media (max-width: 992px) {
            .navbar-collapse {
                background: #0b1e33;
                border-radius: 14px;
                padding: 18px;
                margin-top: 12px;
                border: 1px solid rgba(255, 255, 255, 0.08);
            }

            .navbar-nav {
                gap: 0;
                margin-bottom: 12px;
            }

            .nav-link {
                padding: 10px 14px !important;
                border-radius: 10px;
            }

            .btn-cta {
                margin-left: 0;
                justify-content: center;
                width: 100%;
            }

            .page-hero {
                padding: 70px 0 80px;
            }

            .hero-card {
                margin-left: 0;
                margin-top: 30px;
            }

            .section {
                padding: 70px 0;
            }

            .section-tips,
            .section-faq,
            .section-cta {
                padding: 70px 0;
            }

            .section-ranking {
                padding: 70px 0;
            }

            .section-cta {
                padding-top: 20px;
                padding-bottom: 70px;
            }

            .cta-box {
                padding: 48px 30px;
            }
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 60px 0 70px;
            }

            .page-hero h1 {
                font-size: 30px;
            }

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

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

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

            .core-card {
                padding: 28px 20px;
            }

            .rank-item {
                flex-wrap: wrap;
                gap: 10px;
            }

            .rank-info {
                flex-basis: calc(100% - 70px);
            }

            .rank-bar {
                flex-basis: calc(100% - 70px);
                margin-left: 52px;
            }

            .feedback-card {
                margin-bottom: 16px;
            }

            .cta-box {
                padding: 40px 22px;
                border-radius: 18px;
            }

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

            .footer-bottom {
                margin-top: 36px;
            }
        }

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

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

            .page-hero .hero-sub {
                font-size: 15px;
            }

            .section-tag {
                font-size: 12px;
            }

            .tip-card-img {
                height: 160px;
            }

            .rank-no {
                font-size: 18px;
                width: 26px;
            }

            .rank-score {
                font-size: 15px;
            }

            .cta-box h2 {
                font-size: 21px;
            }

            .btn-primary,
            .btn-outline-light {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #0a1a3c;
            --primary-light: #1d3a6e;
            --primary-dark: #060f26;
            --accent: #c8a45c;
            --accent-light: #e2c98d;
            --accent-dark: #a9873f;
            --bg: #f4f6fb;
            --white: #ffffff;
            --text: #1d2942;
            --muted: #5e6e82;
            --border: #e6eaf2;
            --shadow: 0 12px 32px rgba(10, 26, 60, 0.08);
            --shadow-hover: 0 18px 40px rgba(10, 26, 60, 0.14);
            --radius: 18px;
            --radius-sm: 10px;
            --radius-lg: 28px;
            --transition: all 0.35s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }

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

        a:hover {
            text-decoration: none;
        }

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

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

        .container {
            max-width: 1240px;
        }

        .section-padding {
            padding: 86px 0;
        }

        /* ===== 导航 ===== */
        .site-header {
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            box-shadow: 0 2px 24px rgba(10, 26, 60, 0.06);
            position: sticky;
            top: 0;
            z-index: 1050;
            padding: 8px 0;
            border-bottom: 1px solid rgba(230, 234, 242, 0.6);
        }

        .site-header .navbar {
            padding: 6px 0;
        }

        .site-header .navbar-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .site-header .navbar-brand i {
            color: var(--accent);
            font-size: 1.4rem;
        }

        .site-header .navbar-brand span {
            color: var(--accent-dark);
        }

        .navbar-toggler {
            border: 2px solid var(--border);
            border-radius: 10px;
            padding: 8px 12px;
            color: var(--primary);
            background: #fff;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 4px rgba(10, 26, 60, 0.06);
        }

        .navbar-nav .nav-item {
            margin-left: 2px;
        }

        .navbar-nav .nav-link {
            font-weight: 600;
            font-size: 0.95rem;
            padding: 10px 18px;
            color: var(--text);
            border-radius: 12px;
            position: relative;
            transition: var(--transition);
        }

        .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: rgba(10, 26, 60, 0.04);
        }

        .navbar-nav .nav-link.active {
            color: var(--accent-dark);
            background: rgba(200, 164, 92, 0.12);
            font-weight: 700;
        }

        .navbar-nav .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 22px;
            height: 3px;
            border-radius: 4px;
            background: var(--accent);
        }

        .btn-cta {
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            padding: 10px 26px;
            font-weight: 700;
            font-size: 0.92rem;
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-left: 14px;
            transition: var(--transition);
            box-shadow: 0 6px 18px rgba(10, 26, 60, 0.16);
        }

        .btn-cta:hover {
            background: var(--primary-light);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 12px 26px rgba(10, 26, 60, 0.22);
        }

        .btn-cta i {
            font-size: 0.82rem;
            transition: transform 0.3s ease;
        }

        .btn-cta:hover i {
            transform: translateX(4px);
        }

        /* ===== Hero ===== */
        .page-hero {
            background: linear-gradient(120deg, rgba(6, 15, 38, 0.88) 0%, rgba(10, 26, 60, 0.72) 55%, rgba(29, 58, 110, 0.68) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 110px 0 105px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            right: -80px;
            bottom: -100px;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: rgba(200, 164, 92, 0.1);
            filter: blur(60px);
        }

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

        .page-hero .breadcrumb {
            display: inline-flex;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 50px;
            padding: 6px 20px;
            font-size: 0.84rem;
            margin-bottom: 26px;
            backdrop-filter: blur(6px);
        }

        .page-hero .breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
        }

        .page-hero .breadcrumb a:hover {
            color: var(--accent);
        }

        .page-hero .breadcrumb .separator {
            margin: 0 10px;
            color: rgba(255, 255, 255, 0.4);
        }

        .page-hero .breadcrumb .current {
            color: var(--accent-light);
            font-weight: 600;
        }

        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(200, 164, 92, 0.16);
            border: 1px solid rgba(200, 164, 92, 0.35);
            color: var(--accent-light);
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 1px;
            padding: 6px 18px;
            border-radius: 50px;
            margin-bottom: 20px;
        }

        .page-hero h1 {
            font-size: 2.9rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .page-hero h1 .accent {
            color: var(--accent-light);
        }

        .page-hero .lead {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.82);
            max-width: 680px;
            margin-bottom: 36px;
            line-height: 1.8;
        }

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

        .btn-hero-primary {
            background: var(--accent);
            color: var(--primary-dark);
            border-radius: 50px;
            padding: 13px 32px;
            font-weight: 700;
            border: none;
            font-size: 0.95rem;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
            box-shadow: 0 8px 24px rgba(200, 164, 92, 0.3);
        }

        .btn-hero-primary:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 14px 30px rgba(200, 164, 92, 0.4);
        }

        .btn-hero-ghost {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            border-radius: 50px;
            padding: 13px 32px;
            font-weight: 600;
            font-size: 0.95rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }

        .btn-hero-ghost:hover {
            border-color: var(--accent);
            color: var(--accent-light);
            background: rgba(255, 255, 255, 0.05);
            transform: translateY(-3px);
        }

        /* ===== 安全数据 ===== */
        .safety-stats {
            padding: 80px 0;
            background: var(--bg);
            position: relative;
            z-index: 3;
            margin-top: -30px;
        }

        .stat-card {
            text-align: center;
            background: #fff;
            border-radius: var(--radius);
            padding: 40px 20px 36px;
            box-shadow: var(--shadow);
            border: 1px solid rgba(230, 234, 242, 0.7);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .stat-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 4px;
            border-radius: 0 0 8px 8px;
            background: var(--accent);
            opacity: 0;
            transition: var(--transition);
        }

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

        .stat-card:hover::before {
            opacity: 1;
            width: 80px;
        }

        .stat-icon {
            width: 60px;
            height: 60px;
            margin: 0 auto 18px;
            border-radius: 16px;
            background: rgba(10, 26, 60, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-dark);
        }

        .stat-num {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-num span {
            color: var(--accent);
            font-size: 2rem;
        }

        .stat-label {
            color: var(--muted);
            font-size: 0.92rem;
            font-weight: 500;
        }

        /* ===== 安全防护体系 ===== */
        .safety-system {
            padding: 86px 0;
            background: #fff;
        }

        .section-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(200, 164, 92, 0.12);
            color: var(--accent-dark);
            padding: 7px 18px;
            border-radius: 50px;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 1.5px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 14px;
            line-height: 1.35;
        }

        .section-sub {
            color: var(--muted);
            max-width: 680px;
            margin: 0 auto 50px;
            font-size: 1.02rem;
        }

        .system-card {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 28px;
            background: #fff;
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .system-card::after {
            content: "";
            position: absolute;
            right: -30px;
            top: -30px;
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: rgba(200, 164, 92, 0.08);
            transition: var(--transition);
        }

        .system-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }

        .system-card:hover::after {
            transform: scale(2.5);
            background: rgba(200, 164, 92, 0.06);
        }

        .system-icon {
            width: 64px;
            height: 64px;
            border-radius: 18px;
            background: rgba(10, 26, 60, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent-dark);
            margin-bottom: 24px;
            transition: var(--transition);
        }

        .system-card:hover .system-icon {
            background: var(--primary);
            color: var(--accent);
            transform: scale(1.06);
        }

        .system-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }

        .system-card p {
            color: var(--muted);
            font-size: 0.94rem;
            line-height: 1.75;
            margin-bottom: 0;
        }

        .system-tag {
            display: inline-block;
            margin-top: 18px;
            background: rgba(10, 26, 60, 0.04);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 30px;
        }

        /* ===== 安全流程 ===== */
        .safety-flow {
            padding: 86px 0;
            background: var(--bg);
            position: relative;
        }

        .flow-wrap {
            position: relative;
            max-width: 980px;
            margin: 0 auto;
        }

        .flow-wrap::before {
            content: "";
            position: absolute;
            top: 40px;
            left: 50%;
            transform: translateX(-50%);
            width: 2px;
            height: calc(100% - 80px);
            background: linear-gradient(to bottom, rgba(200, 164, 92, 0.35), rgba(10, 26, 60, 0.08));
        }

        .flow-item {
            display: flex;
            align-items: flex-start;
            margin-bottom: 46px;
            position: relative;
            z-index: 2;
        }

        .flow-item:nth-child(odd) {
            flex-direction: row;
        }

        .flow-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .flow-number {
            width: 72px;
            min-width: 72px;
            height: 72px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 1.4rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            z-index: 3;
            box-shadow: 0 0 0 6px rgba(10, 26, 60, 0.08);
            margin: 0 30px;
        }

        .flow-content {
            background: #fff;
            border-radius: var(--radius);
            padding: 26px 30px;
            box-shadow: var(--shadow);
            border-left: 4px solid var(--accent);
            flex: 1;
            max-width: 420px;
            transition: var(--transition);
        }

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

        .flow-content h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .flow-content p {
            color: var(--muted);
            font-size: 0.9rem;
            margin-bottom: 0;
        }

        /* ===== 安全指南 ===== */
        .safety-guides {
            padding: 86px 0;
            background: #fff;
        }

        .guide-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
            height: 100%;
        }

        .guide-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }

        .guide-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            height: 220px;
        }

        .guide-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .guide-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }

        .guide-card .card-img-wrap::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10, 26, 60, 0.3), transparent 55%);
        }

        .guide-card .card-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(255, 255, 255, 0.92);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 30px;
            z-index: 2;
            backdrop-filter: blur(6px);
        }

        .guide-card-body {
            padding: 26px 26px 28px;
        }

        .guide-card-body h3 {
            font-size: 1.12rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.4;
        }

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

        .guide-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }

        .guide-card-meta .date {
            font-size: 0.82rem;
            color: var(--muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .guide-card-meta .read-more {
            font-size: 0.86rem;
            font-weight: 600;
            color: var(--accent-dark);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .guide-card-meta .read-more:hover {
            color: var(--primary);
            gap: 10px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 86px 0;
            background: var(--bg);
        }

        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 14px;
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(200, 164, 92, 0.3);
            box-shadow: 0 6px 20px rgba(10, 26, 60, 0.05);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            background: transparent;
            border: none;
            padding: 22px 26px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: var(--transition);
            font-family: inherit;
        }

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

        .faq-question .faq-icon {
            width: 30px;
            height: 30px;
            min-width: 30px;
            border-radius: 50%;
            background: rgba(10, 26, 60, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-item.open .faq-icon {
            background: var(--accent);
            color: var(--primary-dark);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 26px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 22px;
        }

        .faq-answer p {
            color: var(--muted);
            font-size: 0.94rem;
            line-height: 1.8;
            border-top: 1px solid var(--border);
            padding-top: 18px;
            margin-bottom: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            color: #fff;
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(200, 164, 92, 0.14);
            filter: blur(50px);
        }

        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -40px;
            left: 20%;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(200, 164, 92, 0.1);
            filter: blur(40px);
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .cta-section h2 .accent {
            color: var(--accent-light);
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.02rem;
            max-width: 560px;
            margin: 0 auto 32px;
        }

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

        .btn-cta-light {
            background: var(--accent);
            color: var(--primary-dark);
            border-radius: 50px;
            padding: 12px 30px;
            font-weight: 700;
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            box-shadow: 0 8px 24px rgba(200, 164, 92, 0.28);
        }

        .btn-cta-light:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 14px 32px rgba(200, 164, 92, 0.35);
        }

        .btn-cta-outline {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.4);
            border-radius: 50px;
            padding: 12px 30px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }

        .btn-cta-outline:hover {
            border-color: var(--accent);
            color: var(--accent-light);
            transform: translateY(-3px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #080f22;
            color: rgba(255, 255, 255, 0.65);
            padding: 60px 0 0;
        }

        .footer-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }

        .footer-brand i {
            color: var(--accent);
        }

        .footer-brand span {
            color: var(--accent);
        }

        .site-footer p {
            font-size: 0.9rem;
            line-height: 1.8;
            max-width: 360px;
        }

        .footer-title {
            color: #fff;
            font-size: 1.02rem;
            font-weight: 700;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

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

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

        .footer-links li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .footer-links li a i {
            font-size: 0.7rem;
            color: var(--accent);
        }

        .footer-links li a:hover {
            color: var(--accent-light);
            padding-left: 8px;
        }

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

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
            font-size: 0.9rem;
        }

        .footer-contact li i {
            color: var(--accent);
            min-width: 18px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            margin-top: 48px;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
            margin: 0;
            max-width: none;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 992px) {
            .navbar-collapse {
                background: #fff;
                border-radius: 16px;
                padding: 18px 20px;
                margin-top: 12px;
                box-shadow: var(--shadow);
                border: 1px solid var(--border);
            }

            .navbar-nav .nav-link {
                padding: 12px 14px;
                border-radius: 10px;
            }

            .btn-cta {
                margin-left: 0;
                margin-top: 14px;
                width: 100%;
                justify-content: center;
            }

            .page-hero {
                padding: 80px 0 76px;
            }

            .page-hero h1 {
                font-size: 2.2rem;
            }

            .flow-wrap::before {
                left: 40px;
            }

            .flow-item,
            .flow-item:nth-child(odd),
            .flow-item:nth-child(even) {
                flex-direction: row;
                padding-left: 40px;
            }

            .flow-number {
                margin: 0 24px 0 0;
                width: 62px;
                min-width: 62px;
                height: 62px;
                font-size: 1.2rem;
                position: absolute;
                left: 0;
                top: 8px;
            }

            .flow-content {
                max-width: 100%;
                width: 100%;
            }
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 60px 0;
            }

            .page-hero {
                padding: 64px 0 60px;
            }

            .page-hero h1 {
                font-size: 1.85rem;
            }

            .page-hero .lead {
                font-size: 0.98rem;
            }

            .section-title {
                font-size: 1.7rem;
            }

            .stat-card {
                padding: 28px 16px;
            }

            .stat-num {
                font-size: 2rem;
            }

            .system-card {
                padding: 28px 22px;
            }

            .system-card h3 {
                font-size: 1.12rem;
            }

            .guide-card .card-img-wrap {
                height: 190px;
            }

            .cta-section h2 {
                font-size: 1.6rem;
            }

            .site-footer {
                padding-top: 44px;
            }

            .site-footer .col-lg-4:first-child {
                margin-bottom: 30px;
            }

            .site-footer .col-lg-2,
            .site-footer .col-lg-4 {
                margin-bottom: 26px;
            }
        }

        @media (max-width: 576px) {
            .navbar-brand {
                font-size: 1.3rem;
            }

            .page-hero {
                padding: 52px 0 48px;
            }

            .page-hero .hero-badge {
                font-size: 0.74rem;
                padding: 5px 14px;
            }

            .page-hero h1 {
                font-size: 1.55rem;
                line-height: 1.35;
            }

            .page-hero .lead {
                font-size: 0.92rem;
            }

            .hero-btn-group .btn-hero-primary,
            .hero-btn-group .btn-hero-ghost {
                padding: 11px 24px;
                font-size: 0.88rem;
            }

            .section-title {
                font-size: 1.45rem;
            }

            .section-sub {
                font-size: 0.92rem;
                margin-bottom: 34px;
            }

            .stat-card {
                margin-bottom: 16px;
            }

            .system-card {
                margin-bottom: 16px;
            }

            .guide-card {
                margin-bottom: 18px;
            }

            .flow-item {
                padding-left: 0;
                flex-direction: column;
            }

            .flow-item:nth-child(odd),
            .flow-item:nth-child(even) {
                flex-direction: column;
                padding-left: 0;
            }

            .flow-wrap::before {
                left: 30px;
                top: 30px;
                height: calc(100% - 60px);
            }

            .flow-number {
                position: relative;
                left: 0;
                top: 0;
                margin: 0 0 18px;
            }

            .flow-content {
                padding: 22px 24px;
            }

            .flow-content h3 {
                font-size: 1.05rem;
            }

            .faq-question {
                padding: 18px 20px;
                font-size: 0.95rem;
            }

            .faq-answer {
                padding: 0 20px;
            }

            .faq-item.open .faq-answer {
                padding-bottom: 18px;
            }

            .cta-section {
                padding: 56px 0;
            }

            .cta-section h2 {
                font-size: 1.35rem;
            }

            .cta-section p {
                font-size: 0.92rem;
            }

            .cta-btn-group .btn-cta-light,
            .cta-btn-group .btn-cta-outline {
                padding: 11px 24px;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }

            .footer-bottom p {
                font-size: 0.78rem;
            }
        }