/* roulang page: index */
:root {
    --primary: #0b1e3a;
    --primary-light: #16324f;
    --accent: #c8a45a;
    --accent-hover: #b8903f;
    --bg: #f6f7fb;
    --bg-white: #ffffff;
    --text: #1a1a2e;
    --text-weak: #62697a;
    --border: #e3e6ee;
    --radius: 14px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(11, 30, 58, 0.07);
    --shadow-hover: 0 10px 40px rgba(11, 30, 58, 0.12);
    --spacing: 80px;
    --spacing-sm: 48px;
    --transition: 0.25s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button, input, textarea, select { font-family: inherit; font-size: inherit; outline: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-lg { max-width: 1320px; margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header {
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 24px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    font-size: 21px;
    font-weight: 800;
    letter-spacing: 0.3px;
    color: var(--primary);
}
.logo i {
    font-size: 26px;
    color: var(--accent);
    background: linear-gradient(135deg, #c8a45a, #a8843a);
    -webkit-background-clip: text;
    background-clip: text;
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: 24px;
}
.main-nav a {
    display: block;
    padding: 8px 18px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
    border-radius: 30px;
    transition: all var(--transition);
}
.main-nav a:hover { color: var(--accent); background: rgba(200, 164, 90, 0.12); }
.main-nav a.active { color: var(--accent); background: rgba(200, 164, 90, 0.15); font-weight: 600; }
.header-right { display: flex; align-items: center; gap: 14px; }
.search-box {
    display: flex;
    align-items: center;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 30px;
    padding: 7px 16px;
    gap: 8px;
    transition: border-color var(--transition);
    flex-shrink: 0;
}
.search-box i { color: var(--text-weak); font-size: 14px; }
.search-box input {
    border: none;
    background: transparent;
    width: 150px;
    font-size: 14px;
    color: var(--text);
}
.search-box input::placeholder { color: #a0a6b4; }
.search-box:focus-within { border-color: var(--accent); }
.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #c8a45a, #a8843a);
    color: #fff;
    border: none;
    padding: 10px 24px;
    border-radius: 30px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    box-shadow: 0 4px 15px rgba(200, 164, 90, 0.35);
}
.btn-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(200, 164, 90, 0.4); color: #fff; }
.btn-cta:active { transform: translateY(0); }
.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1.5px solid var(--primary);
    color: var(--primary);
    padding: 10px 24px;
    border-radius: 30px;
    font-size: 15px;
    font-weight: 600;
    background: transparent;
    cursor: pointer;
    transition: all var(--transition);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: rgba(200, 164, 90, 0.06); transform: translateY(-2px); }
.mobile-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    width: 42px;
    height: 42px;
    font-size: 18px;
    color: var(--text);
    cursor: pointer;
    align-items: center;
    justify-content: center;
}

/* Hero */
.hero {
    position: relative;
    background: linear-gradient(135deg, #0b1e3a 0%, #16324f 60%, #1d405e 100%);
    background-size: cover;
    background-position: center;
    padding: 110px 0 100px;
    color: #fff;
    overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; opacity: 0.28; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(11, 30, 58, 0.9) 20%, rgba(11, 30, 58, 0.35) 70%);
    z-index: 1;
}
.hero-content { position: relative; z-index: 2; display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 60px; align-items: center; }
.hero-title { font-size: 46px; font-weight: 800; line-height: 1.2; letter-spacing: 0.5px; margin-bottom: 18px; }
.hero-title span { color: var(--accent); }
.hero-desc { font-size: 17px; line-height: 1.8; color: rgba(255, 255, 255, 0.78); max-width: 540px; margin-bottom: 34px; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 36px; }
.hero-badge {
    background: rgba(255, 255, 255, 0.09);
    border: 1px solid rgba(255, 255, 255, 0.19);
    border-radius: 20px;
    padding: 5px 16px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    gap: 6px;
}
.hero-badge i { color: var(--accent); }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.stat-card {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius);
    padding: 28px 24px;
    text-align: center;
    backdrop-filter: blur(6px);
}
.stat-card .num { font-size: 32px; font-weight: 800; color: var(--accent); line-height: 1.1; }
.stat-card .label { margin-top: 8px; font-size: 14px; color: rgba(255, 255, 255, 0.75); }

/* Section common */
.section { padding: var(--spacing) 0; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 52px; }
.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(200, 164, 90, 0.13);
    color: #a8843a;
    font-size: 13px;
    font-weight: 600;
    padding: 4px 18px;
    border-radius: 20px;
    margin-bottom: 14px;
}
.section-title { font-size: 34px; font-weight: 800; line-height: 1.3; color: var(--primary); }
.section-desc { margin-top: 12px; font-size: 16px; color: var(--text-weak); line-height: 1.7; }

/* Feature cards */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.feature-card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 28px;
    transition: all var(--transition);
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: rgba(200, 164, 90, 0.4); }
.feature-icon {
    width: 62px;
    height: 62px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    color: #fff;
    margin-bottom: 22px;
    background: linear-gradient(135deg, #c8a45a, #a8843a);
}
.feature-icon.blue { background: linear-gradient(135deg, #1d405e, #0b1e3a); }
.feature-title { font-size: 20px; font-weight: 700; margin-bottom: 10px; color: var(--text); }
.feature-desc { font-size: 15px; color: var(--text-weak); line-height: 1.7; }

/* Category cards */
.categories { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.cat-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: all var(--transition);
}
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.cat-card img { width: 100%; height: 190px; object-fit: cover; transition: transform 0.5s ease; }
.cat-card:hover img { transform: scale(1.04); }
.cat-card-body { padding: 24px; }
.cat-card-body h3 { font-size: 19px; font-weight: 700; margin-bottom: 6px; color: var(--text); }
.cat-card-body p { font-size: 14px; color: var(--text-weak); margin-bottom: 16px; line-height: 1.6; }
.cat-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
}
.cat-link i { font-size: 12px; }

/* News list */
.news-section { background: var(--bg-white); border-top: 1px solid var(--border); }
.news-section .section-title { text-align: left; }
.news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.news-card {
    display: flex;
    gap: 18px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    transition: all var(--transition);
    align-items: flex-start;
}
.news-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: rgba(200, 164, 90, 0.4); }
.news-card img { width: 120px; height: 90px; object-fit: cover; border-radius: var(--radius-sm); flex-shrink: 0; }
.news-info { flex: 1; min-width: 0; }
.news-meta { display: flex; gap: 8px; align-items: center; font-size: 12.5px; color: var(--text-weak); margin-bottom: 6px; }
.news-meta .badge {
    background: rgba(200, 164, 90, 0.16);
    color: #a8843a;
    font-weight: 600;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 12px;
}
.news-info h3 { font-size: 16px; font-weight: 700; line-height: 1.4; color: var(--text); overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;  }
.news-info h3 a { color: inherit; }
.news-info h3 a:hover { color: var(--accent); }

/* Process section */
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; position: relative; margin-top: 50px; }
.process-step { text-align: center; position: relative; }
.step-num {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, #c8a45a, #a8843a);
    color: #fff;
    font-size: 22px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    box-shadow: 0 6px 20px rgba(200, 164, 90, 0.35);
    position: relative;
    z-index: 2;
}
.process-step .step-title { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.process-step .step-desc { font-size: 14px; color: var(--text-weak); line-height: 1.6; }
.process::before {
    content: "";
    position: absolute;
    top: 36px;
    left: 12.5%;
    right: 12.5%;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), rgba(200, 164, 90, 0.3));
    z-index: 1;
}

/* FAQ */
.faq-wrap { max-width: 840px; margin: 0 auto; }
.faq-item {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 14px;
    overflow: hidden;
    transition: all var(--transition);
}
.faq-item:hover { border-color: rgba(200, 164, 90, 0.4); box-shadow: 0 2px 12px rgba(11, 30, 58, 0.05); }
.faq-q {
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    gap: 16px;
    color: var(--text);
}
.faq-q i { color: var(--accent); transition: transform var(--transition); }
.faq-item.open .faq-q i { transform: rotate(180deg); }
.faq-a {
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    font-size: 15px;
    color: var(--text-weak);
    line-height: 1.7;
}
.faq-item.open .faq-a { padding: 0 24px 22px; max-height: 400px; }

/* CTA */
.cta-block {
    background: linear-gradient(135deg, #0b1e3a, #1d405e);
    border-radius: 24px;
    padding: 56px 48px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-block::before {
    content: "";
    position: absolute;
    top: -30px;
    right: -30px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(200, 164, 90, 0.25), transparent 70%);
}
.cta-block h2 { font-size: 30px; font-weight: 800; color: #fff; margin-bottom: 12px; }
.cta-block p { color: rgba(255, 255, 255, 0.78); font-size: 16px; margin-bottom: 30px; max-width: 520px; margin-left: auto; margin-right: auto; }
.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #c8a45a, #a8843a);
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    padding: 14px 38px;
    border-radius: 32px;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    box-shadow: 0 6px 24px rgba(200, 164, 90, 0.4);
}
.cta-btn:hover { transform: translateY(-3px); box-shadow: 0 10px 32px rgba(200, 164, 90, 0.5); }

/* Footer */
.site-footer {
    background: #0b1e3a;
    color: rgba(255, 255, 255, 0.72);
    padding: 60px 0 0;
    margin-top: var(--spacing);
}
.footer-top {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 44px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.09);
}
.footer-logo { font-size: 20px; font-weight: 800; color: #fff; display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.footer-logo i { color: var(--accent); }
.footer-about { font-size: 14px; line-height: 1.8; max-width: 360px; }
.footer-title { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255, 255, 255, 0.62); font-size: 14px; }
.footer-links a:hover { color: var(--accent); }
.footer-contact { font-size: 14px; line-height: 2; }
.footer-contact i { color: var(--accent); margin-right: 8px; width: 16px; }
.footer-bottom {
    padding: 20px 0;
    text-align: center;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.footer-bottom a { color: rgba(255, 255, 255, 0.6); }
.footer-bottom a:hover { color: var(--accent); }

/* Responsive */
@media (max-width: 1024px) {
    .hero-content { grid-template-columns: 1fr; gap: 40px; }
    .hero-stats { grid-template-columns: repeat(4, 1fr); }
    .features, .categories { grid-template-columns: repeat(2, 1fr); }
    .process { grid-template-columns: repeat(2, 1fr); gap: 36px; }
    .process::before { display: none; }
    .footer-top { grid-template-columns: 1fr 1fr; }
    .main-nav { display: none; }
    .mobile-toggle { display: flex; }
    .header-right .search-box { display: none; }
}
@media (max-width: 768px) {
    :root { --spacing: 56px; }
    .hero { padding: 60px 0 90px; }
    .hero-title { font-size: 32px; }
    .hero-stats { grid-template-columns: 1fr; }
    .section-title { font-size: 26px; }
    .news-grid { grid-template-columns: 1fr; }
    .news-card { flex-direction: column; }
    .news-card img { width: 100%; height: 170px; }
    .footer-top { grid-template-columns: 1fr; gap: 30px; }
    .btn-cta { padding: 10px 18px; font-size: 14px; }
    .header-inner { height: 64px; gap: 12px; }
    .logo { font-size: 17px; }
    .scopeMobile { display: none; }
}
@media (max-width: 520px) {
    .container { padding: 0 16px; }
    .features, .categories { grid-template-columns: 1fr; }
    .process { grid-template-columns: 1fr; }
    .cta-block { padding: 40px 26px; }
    .hero-btns { flex-direction: column; width: 100%; }
    .hero-btns .btn-cta, .hero-btns .btn-outline { width: 100%; justify-content: center; }
}

/* roulang page: category1 */
:root {
    --primary: #0f2b5b;
    --primary-light: #1a3f7f;
    --primary-dark: #081d3d;
    --accent: #d4a23a;
    --accent-light: #e8c56d;
    --bg: #f6f8fc;
    --bg-white: #ffffff;
    --bg-dark: #0b1b36;
    --text: #111827;
    --text-muted: #64748b;
    --border: #e5e7eb;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 4px 24px rgba(17, 24, 39, .06);
    --shadow-lg: 0 12px 40px rgba(17, 24, 39, .10);
    --space: 100px;
    --space-sm: 64px;
    --container-w: 1200px;
}

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

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

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

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

a {
    color: inherit;
    text-decoration: none;
    transition: color .25s ease;
}

button,
input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
    border: none;
    outline: none;
    background: none;
}

ul,
ol {
    list-style: none;
}

.container {
    max-width: var(--container-w);
    margin: 0 auto;
    padding: 0 32px;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 600;
    font-size: 15px;
    line-height: 1;
    padding: 14px 28px;
    border-radius: 50px;
    cursor: pointer;
    transition: all .3s ease;
    border: 2px solid transparent;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    color: #fff;
    box-shadow: 0 6px 20px rgba(15, 43, 91, .25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(15, 43, 91, .32);
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

.btn-outline {
    background: transparent;
    border-color: rgba(255, 255, 255, .7);
    color: #fff;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, .12);
    border-color: #fff;
}

.btn-gold {
    background: linear-gradient(135deg, var(--accent-light), var(--accent));
    color: #0f2b5b;
    box-shadow: 0 6px 20px rgba(212, 162, 58, .28);
}

.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(212, 162, 58, .38);
}

.btn-sm {
    padding: 10px 20px;
    font-size: 14px;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 16px;
}

/* ===== Header ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, .92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 12px rgba(17, 24, 39, .04);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 74px;
    gap: 24px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: .5px;
    white-space: nowrap;
}

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

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

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

.main-nav a {
    position: relative;
    padding: 8px 18px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-muted);
    border-radius: 40px;
    transition: all .25s ease;
}

.main-nav a:hover {
    color: var(--primary);
    background: rgba(15, 43, 91, .06);
}

.main-nav a.active {
    color: var(--primary);
    background: rgba(15, 43, 91, .08);
    font-weight: 700;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 14px;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 50px;
    padding: 0 16px;
    height: 42px;
    width: 220px;
    transition: all .3s ease;
}

.search-box:focus-within {
    border-color: var(--accent);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(212, 162, 58, .15);
}

.search-box i {
    color: var(--text-muted);
    font-size: 14px;
    margin-right: 8px;
}

.search-box input {
    flex: 1;
    font-size: 14px;
    color: var(--text);
}

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

.nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--primary);
    font-size: 18px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
}

/* ===== 页面 Banner ===== */
.page-banner {
    position: relative;
    background: linear-gradient(135deg, rgba(8, 29, 61, .88), rgba(15, 43, 91, .78)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    padding: 120px 0 100px;
    color: #fff;
    text-align: center;
}

.banner-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, .12);
    border: 1px solid rgba(255, 255, 255, .2);
    border-radius: 50px;
    padding: 6px 18px;
    font-size: 13px;
    letter-spacing: 1px;
    margin-bottom: 24px;
}

.page-banner h1 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.page-banner p {
    font-size: 18px;
    line-height: 1.7;
    color: rgba(255, 255, 255, .85);
    max-width: 680px;
    margin: 0 auto 32px;
}

.banner-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, .7);
    margin-bottom: 32px;
}

.breadcrumb a {
    color: rgba(255, 255, 255, .8);
}

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

.breadcrumb i {
    font-size: 12px;
}

/* ===== 通用板块 ===== */
.section {
    padding: var(--space) 0;
}

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

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

.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--accent);
    background: rgba(212, 162, 58, .1);
    padding: 6px 16px;
    border-radius: 50px;
    margin-bottom: 14px;
    text-transform: uppercase;
}

.section-title {
    font-size: 34px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.3;
    margin-bottom: 14px;
}

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

/* ===== 平台概览 ===== */
.about-section {
    padding: var(--space) 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 64px;
    align-items: center;
}

.about-content h2 {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.3;
    margin-bottom: 20px;
}

.about-content p {
    color: var(--text-muted);
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-points {
    margin-top: 28px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.about-point {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 18px;
    background: var(--bg);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.about-point i {
    color: var(--accent);
    font-size: 18px;
    margin-top: 2px;
}

.about-point span {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
}

.about-image {
    position: relative;
}

.about-image img {
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    width: 100%;
    height: 420px;
    object-fit: cover;
}

.about-image::after {
    content: '';
    position: absolute;
    inset: 20px;
    border: 2px solid rgba(255, 255, 255, .3);
    border-radius: var(--radius);
    pointer-events: none;
}

.about-badge {
    position: absolute;
    bottom: 24px;
    left: 24px;
    background: rgba(255, 255, 255, .95);
    border-radius: var(--radius-sm);
    padding: 12px 20px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 12px;
}

.about-badge i {
    color: var(--accent);
    font-size: 28px;
}

.about-badge strong {
    display: block;
    font-size: 20px;
    color: var(--primary);
    line-height: 1.2;
}

.about-badge small {
    font-size: 13px;
    color: var(--text-muted);
}

/* ===== 数据指标 ===== */
.stats-section {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
    padding: 72px 0;
    color: #fff;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.stat-card {
    text-align: center;
    padding: 28px 20px;
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: var(--radius);
    transition: all .3s ease;
}

.stat-card:hover {
    background: rgba(255, 255, 255, .10);
    transform: translateY(-4px);
}

.stat-icon {
    font-size: 30px;
    color: var(--accent-light);
    margin-bottom: 14px;
}

.stat-number {
    font-size: 38px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 6px;
}

.stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, .75);
}

/* ===== 功能卡片 ===== */
.features-section {
    padding: var(--space) 0;
    background: var(--bg-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.feature-card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 30px;
    transition: all .35s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .4s ease;
}

.feature-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
    border-color: rgba(212, 162, 58, .4);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(15, 43, 91, .08), rgba(212, 162, 58, .12));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 19px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.7;
}

.feature-tag {
    display: inline-block;
    margin-top: 16px;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
    background: rgba(212, 162, 58, .08);
    padding: 4px 12px;
    border-radius: 30px;
}

/* ===== 使用流程 ===== */
.steps-section {
    padding: var(--space) 0;
}

.steps-wrapper {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.steps-wrapper::before {
    content: '';
    position: absolute;
    left: 40px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--accent), rgba(212, 162, 58, .1));
    border-radius: 3px;
}

.step-item {
    position: relative;
    display: flex;
    gap: 28px;
    padding: 20px 0 40px;
}

.step-num {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--bg-white);
    border: 3px solid var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    font-weight: 800;
    color: var(--accent);
    box-shadow: 0 6px 20px rgba(212, 162, 58, .18);
    z-index: 1;
}

.step-content {
    flex: 1;
    padding-top: 10px;
}

.step-content h3 {
    font-size: 21px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.step-content p {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ===== 安全资质 ===== */
.trust-section {
    position: relative;
    padding: 100px 0;
    background: linear-gradient(135deg, rgba(8, 29, 61, .92), rgba(15, 43, 91, .85)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    color: #fff;
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.trust-card {
    background: rgba(255, 255, 255, .07);
    border: 1px solid rgba(255, 255, 255, .12);
    border-radius: var(--radius);
    padding: 32px 26px;
    text-align: center;
    transition: all .3s ease;
}

.trust-card:hover {
    background: rgba(255, 255, 255, .12);
    transform: translateY(-4px);
}

.trust-card i {
    font-size: 30px;
    color: var(--accent-light);
    margin-bottom: 16px;
}

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

.trust-card p {
    font-size: 14px;
    color: rgba(255, 255, 255, .7);
    line-height: 1.6;
}

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

.faq-list {
    max-width: 780px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all .3s ease;
}

.faq-item:hover {
    border-color: rgba(212, 162, 58, .4);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 28px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    background: transparent;
    text-align: left;
    width: 100%;
}

.faq-question i {
    color: var(--accent);
    font-size: 18px;
    transition: transform .3s ease;
    flex-shrink: 0;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s ease;
}

.faq-answer p {
    padding: 0 28px 24px;
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.8;
    border-top: 1px solid var(--border);
    padding-top: 20px;
    margin-top: 0;
}

/* ===== CTA ===== */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    text-align: center;
}

.cta-section h2 {
    font-size: 34px;
    font-weight: 800;
    margin-bottom: 16px;
}

.cta-section p {
    font-size: 16px;
    color: rgba(255, 255, 255, .8);
    max-width: 560px;
    margin: 0 auto 32px;
}

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

/* ===== Footer ===== */
.site-footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, .8);
    padding: 72px 0 0;
    font-size: 15px;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 56px;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
}

.footer-logo i {
    color: var(--accent);
    font-size: 22px;
}

.footer-about {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, .6);
    max-width: 320px;
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, .6);
    font-size: 14px;
    transition: all .25s ease;
}

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

.footer-contact div {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, .6);
    font-size: 14px;
    margin-bottom: 12px;
}

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

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, .4);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .header-inner {
        gap: 12px;
    }

    .main-nav {
        display: none;
        position: absolute;
        top: 74px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 16px 24px 24px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
    }

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

    .main-nav a {
        width: 100%;
        text-align: left;
        padding: 14px 16px;
        border-radius: 10px;
    }

    .nav-toggle {
        display: flex;
    }

    .search-box {
        width: 170px;
    }

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

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

    .about-grid {
        gap: 40px;
    }

    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    .page-banner {
        padding: 84px 0 64px;
    }

    .page-banner h1 {
        font-size: 32px;
    }

    .page-banner p {
        font-size: 16px;
    }

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

    .about-image img {
        height: 300px;
    }

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

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .stat-number {
        font-size: 30px;
    }

    .steps-wrapper::before {
        left: 24px;
    }

    .step-num {
        width: 56px;
        height: 56px;
        font-size: 20px;
    }

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

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

    .section {
        padding: 64px 0;
    }

    .section-title {
        font-size: 28px;
    }

    .header-actions .search-box {
        display: none;
    }

    .btn-sm {
        padding: 10px 16px;
        font-size: 13px;
    }
}

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

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

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

    .breadcrumb {
        flex-wrap: wrap;
        font-size: 13px;
    }

    .banner-actions,
    .cta-actions {
        flex-direction: column;
        width: 100%;
    }

    .banner-actions .btn,
    .cta-actions .btn {
        width: 100%;
    }

    .about-points {
        grid-template-columns: 1fr;
    }

    .steps-wrapper::before {
        display: none;
    }

    .step-item {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }

    .step-num {
        width: 48px;
        height: 48px;
        font-size: 18px;
    }

    .faq-question {
        padding: 18px 20px;
        font-size: 15px;
    }

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

    .section-title {
        font-size: 24px;
    }

    .section-subtitle {
        font-size: 15px;
    }
}

/* roulang page: category2 */
:root {
            --primary: #0f1e3d;
            --primary-light: #1b3460;
            --accent: #e8a54b;
            --accent-dark: #d08c2e;
            --bg: #f5f7fb;
            --white: #ffffff;
            --text: #1a2333;
            --text-weak: #6b7a90;
            --border: #e5eaf2;
            --shadow-sm: 0 2px 8px rgba(15, 30, 61, 0.06);
            --shadow-md: 0 8px 24px rgba(15, 30, 61, 0.08);
            --shadow-lg: 0 16px 40px rgba(15, 30, 61, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            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%;
            display: block;
        }

        ul,
        ol {
            list-style: none;
        }

        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(15, 30, 61, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--primary);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .logo i {
            font-size: 1.4rem;
            color: var(--accent);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .main-nav a {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-weak);
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .main-nav a:hover {
            color: var(--primary);
            background: rgba(15, 30, 61, 0.05);
        }

        .main-nav a.active {
            color: var(--primary);
            background: rgba(15, 30, 61, 0.07);
            font-weight: 700;
            border-color: rgba(15, 30, 61, 0.08);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 0 14px;
            height: 40px;
            width: 220px;
            transition: var(--transition);
        }

        .search-box:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(232, 165, 75, 0.15);
            background: var(--white);
        }

        .search-box i {
            color: var(--text-weak);
            font-size: 0.85rem;
            margin-right: 8px;
        }

        .search-box input {
            width: 100%;
            font-size: 0.9rem;
            color: var(--text);
            background: transparent;
        }

        .search-box input::placeholder {
            color: #a0abbe;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #1a2333;
            font-weight: 700;
            font-size: 0.92rem;
            padding: 10px 24px;
            border-radius: 999px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(232, 165, 75, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232, 165, 75, 0.4);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(232, 165, 75, 0.4);
            outline-offset: 2px;
        }

        .btn-primary.btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border: 1.5px solid rgba(15, 30, 61, 0.2);
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            transition: var(--transition);
            background: transparent;
        }

        .btn-outline:hover {
            border-color: var(--primary);
            background: rgba(15, 30, 61, 0.04);
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            border: 1px solid var(--border);
            background: var(--white);
            color: var(--primary);
            font-size: 1.1rem;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

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

        /* ========== Page Banner ========== */
        .page-banner {
            position: relative;
            padding: 90px 0 70px;
            background: linear-gradient(135deg, rgba(15, 30, 61, 0.92), rgba(27, 52, 96, 0.82)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: var(--white);
            overflow: hidden;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -40px;
            right: -20px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(232, 165, 75, 0.08);
            pointer-events: none;
        }

        .page-banner-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 999px;
            background: rgba(232, 165, 75, 0.15);
            color: var(--accent);
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 16px;
            backdrop-filter: blur(4px);
        }

        .section-tag.light {
            background: rgba(255, 255, 255, 0.14);
            color: #fff;
        }

        .page-banner h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .page-banner p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 540px;
            margin-bottom: 32px;
        }

        .banner-metrics {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
        }

        .banner-metrics div {
            text-align: left;
        }

        .banner-metrics strong {
            display: block;
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }

        .banner-metrics span {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.7);
        }

        /* ========== Channel Tabs ========== */
        .channel-tabs {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            padding: 0;
        }

        .tabs-wrap {
            display: flex;
            gap: 4px;
            overflow-x: auto;
            padding: 14px 0;
            scrollbar-width: thin;
        }

        .tabs-wrap::-webkit-scrollbar {
            height: 4px;
        }

        .tabs-wrap::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 4px;
        }

        .tab-item {
            padding: 8px 22px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-weak);
            border: 1px solid var(--border);
            white-space: nowrap;
            transition: var(--transition);
            background: var(--white);
        }

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

        .tab-item.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        /* ========== Sections ========== */
        .page-section {
            padding: 80px 0;
        }

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

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .section-head h2 {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.35;
        }

        .section-head p {
            color: var(--text-weak);
            max-width: 520px;
            font-size: 0.95rem;
        }

        /* ========== Featured Grid ========== */
        .featured-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 28px;
            align-items: stretch;
        }

        .featured-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 420px;
            box-shadow: var(--shadow-lg);
            cursor: pointer;
            transition: var(--transition);
        }

        .featured-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 48px rgba(15, 30, 61, 0.18);
        }

        .featured-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .featured-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 30, 61, 0.92) 0%, rgba(15, 30, 61, 0.45) 55%, transparent 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 32px;
            color: #fff;
        }

        .featured-overlay .badge {
            position: absolute;
            top: 24px;
            left: 24px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: 0.78rem;
            padding: 5px 14px;
            border-radius: 999px;
            letter-spacing: 0.5px;
        }

        .featured-overlay h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .featured-overlay p {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 18px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .featured-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 8px 0;
            box-shadow: var(--shadow-sm);
        }

        .news-row {
            display: flex;
            gap: 14px;
            padding: 18px 24px;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
            align-items: center;
        }

        .news-row:last-child {
            border-bottom: none;
        }

        .news-row:hover {
            background: rgba(232, 165, 75, 0.04);
            padding-left: 28px;
        }

        .news-row-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: rgba(15, 30, 61, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1rem;
            flex-shrink: 0;
        }

        .news-row-content {
            flex: 1;
            min-width: 0;
        }

        .news-row-content h4 {
            font-size: 0.92rem;
            font-weight: 600;
            margin-bottom: 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .news-row-content span {
            font-size: 0.8rem;
            color: var(--text-weak);
        }

        /* ========== News Cards Grid ========== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
        }

        .news-card {
            background: var(--white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .news-card-image {
            position: relative;
            height: 200px;
            overflow: hidden;
        }

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

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

        .card-category {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(255, 255, 255, 0.92);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 999px;
            backdrop-filter: blur(4px);
        }

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

        .news-card-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: var(--transition);
        }

        .news-card:hover .news-card-body h3 {
            color: var(--accent-dark);
        }

        .news-card-body p {
            font-size: 0.88rem;
            color: var(--text-weak);
            line-height: 1.7;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: auto;
            font-size: 0.8rem;
            color: var(--text-weak);
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }

        .news-meta i {
            margin-right: 4px;
        }

        /* ========== Stats Dark Section ========== */
        .stats-section {
            position: relative;
            padding: 90px 0;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: #fff;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(232, 165, 75, 0.12) 0%, transparent 70%);
        }

        .stats-section .section-head h2 {
            color: #fff;
        }

        .stats-section .section-head p {
            color: rgba(255, 255, 255, 0.75);
        }

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

        .stat-card {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            text-align: center;
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-4px);
        }

        .stat-card i {
            font-size: 1.8rem;
            color: var(--accent);
            margin-bottom: 14px;
            display: block;
        }

        .stat-card strong {
            display: block;
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.3;
        }

        .stat-card span {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.7);
        }

        /* ========== Schedule Timeline ========== */
        .schedule-section {
            background: var(--white);
            padding: 80px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .timeline-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
        }

        .timeline-card {
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 28px;
            border: 1px solid var(--border);
            position: relative;
            transition: var(--transition);
        }

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

        .timeline-card .date-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 16px;
        }

        .timeline-card .date-badge.hot {
            background: var(--accent);
            color: var(--primary);
        }

        .timeline-card h3 {
            font-size: 1.08rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--primary);
        }

        .match-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--white);
            border-radius: 10px;
            padding: 12px 16px;
            margin-bottom: 8px;
            border: 1px solid var(--border);
        }

        .match-team {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            font-weight: 600;
        }

        .match-team .team-dot {
            width: 24px;
            height: 24px;
            border-radius: 6px;
            background: rgba(15, 30, 61, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.65rem;
            font-weight: 800;
            color: var(--primary);
        }

        .match-vs {
            font-size: 0.75rem;
            color: var(--text-weak);
            font-weight: 700;
        }

        .match-league {
            font-size: 0.8rem;
            color: var(--text-weak);
        }

        /* ========== Media Quote ========== */
        .media-quote {
            padding: 80px 0;
            background: var(--bg);
        }

        .quote-box {
            text-align: center;
            max-width: 780px;
            margin: 0 auto;
            padding: 40px;
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            position: relative;
        }

        .quote-box::before {
            content: '\201C';
            position: absolute;
            top: 10px;
            left: 24px;
            font-size: 6rem;
            color: rgba(232, 165, 75, 0.2);
            font-family: Georgia, serif;
            line-height: 1;
        }

        .quote-box blockquote {
            font-size: 1.25rem;
            font-weight: 500;
            color: var(--primary);
            line-height: 1.8;
            margin-bottom: 16px;
            font-style: normal;
        }

        .quote-box cite {
            font-style: normal;
            font-size: 0.88rem;
            color: var(--text-weak);
        }

        .quote-box cite strong {
            color: var(--accent-dark);
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 80px 0;
            background: var(--white);
        }

        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 18px;
        }

        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 26px;
            transition: var(--transition);
        }

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

        .faq-item h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .faq-item h3 i {
            color: var(--accent);
            font-size: 0.9rem;
        }

        .faq-item p {
            font-size: 0.9rem;
            color: var(--text-weak);
            line-height: 1.8;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 80px 0;
            background: var(--bg);
        }

        .cta-box {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .cta-box::after {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(232, 165, 75, 0.15);
        }

        .cta-text h2 {
            font-size: 1.7rem;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .cta-text p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.95rem;
        }

        .cta-box .btn-primary {
            background: var(--accent);
            color: var(--primary);
            font-size: 1rem;
            padding: 14px 32px;
        }

        .cta-box .btn-primary:hover {
            background: #f0b76a;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #0c1730;
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-logo i {
            color: var(--accent);
            font-size: 1.3rem;
        }

        .footer-about {
            font-size: 0.88rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }

        .footer-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

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

        .footer-links a {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }

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

        .footer-contact div {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            padding: 22px 0;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

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

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

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

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

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

            .search-box {
                width: 160px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: auto;
                min-height: 64px;
                flex-wrap: wrap;
                padding: 12px 16px;
                gap: 10px;
            }

            .main-nav {
                order: 3;
                width: 100%;
                display: none;
                flex-direction: column;
                align-items: stretch;
                background: var(--white);
                border-radius: var(--radius-md);
                padding: 12px;
                gap: 4px;
                box-shadow: var(--shadow-md);
                border: 1px solid var(--border);
            }

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

            .main-nav a {
                text-align: center;
                padding: 12px;
            }

            .nav-toggle {
                display: flex;
            }

            .search-box {
                display: none;
            }

            .header-actions {
                margin-left: auto;
            }

            .page-banner {
                padding: 60px 0 50px;
            }

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

            .banner-metrics {
                gap: 24px;
            }

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

            .featured-card {
                min-height: 320px;
            }

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

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

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

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

            .section-head {
                flex-direction: column;
                align-items: flex-start;
            }

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

            .cta-box {
                padding: 36px 28px;
                flex-direction: column;
                align-items: flex-start;
            }

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

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .logo {
                font-size: 1.05rem;
            }

            .logo i {
                font-size: 1.1rem;
            }

            .btn-primary.btn-sm {
                padding: 7px 14px;
                font-size: 0.78rem;
            }

            .nav-toggle {
                width: 38px;
                height: 38px;
            }

            .page-banner h1 {
                font-size: 1.8rem;
            }

            .page-banner p {
                font-size: 0.95rem;
            }

            .banner-metrics {
                gap: 16px;
            }

            .banner-metrics strong {
                font-size: 1.4rem;
            }

            .banner-metrics span {
                font-size: 0.75rem;
            }

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

            .stat-card strong {
                font-size: 1.8rem;
            }

            .featured-overlay {
                padding: 20px;
            }

            .featured-overlay h2 {
                font-size: 1.2rem;
            }

            .news-card-image {
                height: 170px;
            }

            .quote-box {
                padding: 24px;
            }

            .quote-box blockquote {
                font-size: 1rem;
            }

            .cta-text h2 {
                font-size: 1.3rem;
            }

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

/* roulang page: article */
:root {
    --brand-dark: #0f2a43;
    --brand-primary: #164e63;
    --brand-accent: #f59e0b;
    --brand-accent-2: #fbbf24;
    --bg-body: #f5f7fa;
    --bg-card: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-light: #e2e8f0;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow-sm: 0 2px 10px rgba(15,23,42,.06);
    --shadow-md: 0 8px 30px rgba(15,23,42,.08);
    --shadow-lg: 0 20px 50px rgba(15,23,42,.14);
    --transition: all .25s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
    background: var(--bg-body);
    color: var(--text-main);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
main { flex: 1; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
button, input, textarea, select { font-family: inherit; font-size: inherit; }
button { border: none; background: none; cursor: pointer; }
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible {
    outline: 3px solid rgba(245, 158, 11, .4);
    outline-offset: 2px;
}

.container { width: min(1200px, 92%); margin: 0 auto; }
.section { padding: 72px 0; }
.section-head { max-width: 720px; margin: 0 auto 48px; text-align: center; }
.section-overline {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--brand-accent);
    background: rgba(245, 158, 11, .12);
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 14px;
}
.section-head h2 { font-size: 32px; line-height: 1.25; color: var(--text-main); margin-bottom: 12px; }
.section-head p { color: var(--text-muted); font-size: 15px; max-width: 540px; margin: 0 auto; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, .92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
    box-shadow: 0 2px 12px rgba(15, 23, 42, .04);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 14px 0;
}
.brand-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-dark));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 16px;
    box-shadow: 0 4px 12px rgba(22, 78, 99, .3);
}
.brand-text { font-size: 20px; font-weight: 800; color: var(--text-main); letter-spacing: .01em; }
.main-nav { display: flex; gap: 6px; align-items: center; }
.main-nav a {
    position: relative;
    padding: 10px 16px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-muted);
    border-radius: 10px;
    transition: var(--transition);
    white-space: nowrap;
}
.main-nav a:hover { color: var(--brand-primary); background: rgba(22, 78, 99, .06); }
.main-nav a.active { color: var(--brand-primary); background: rgba(22, 78, 99, .10); }
.main-nav a.active::after {
    content: "";
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 3px;
    width: 20px;
    height: 3px;
    border-radius: 2px;
    background: var(--brand-accent);
}
.header-actions { display: flex; align-items: center; gap: 12px; }
.search-form {
    display: flex;
    align-items: center;
    background: var(--bg-body);
    border: 1px solid var(--border-light);
    border-radius: 999px;
    padding: 4px 4px 4px 16px;
    transition: var(--transition);
}
.search-form:focus-within {
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(22, 78, 99, .12);
    background: #fff;
}
.search-form input { border: none; outline: none; background: transparent; font-size: 14px; width: 160px; }
.search-form button {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--brand-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    transition: var(--transition);
}
.search-form button:hover { background: var(--brand-dark); }
.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--bg-body);
    border: 1px solid var(--border-light);
    font-size: 16px;
    color: var(--text-main);
    align-items: center;
    justify-content: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 46px;
    padding: 0 24px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 700;
    transition: all .25s ease;
    cursor: pointer;
    border: 1.5px solid transparent;
    line-height: 1;
}
.btn-primary { background: var(--brand-primary); color: #fff; box-shadow: 0 8px 18px rgba(22, 78, 99, .25); }
.btn-primary:hover { background: var(--brand-dark); transform: translateY(-2px); box-shadow: 0 12px 24px rgba(15, 42, 67, .3); }
.btn-outline { background: #fff; border-color: var(--border-light); color: var(--brand-primary); }
.btn-outline:hover { border-color: var(--brand-primary); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.btn-light { background: #fff; color: var(--brand-primary); box-shadow: 0 8px 20px rgba(0, 0, 0, .12); }
.btn-light:hover { transform: translateY(-2px); box-shadow: 0 14px 28px rgba(0, 0, 0, .18); }
.btn-outline-light { background: transparent; border-color: rgba(255, 255, 255, .6); color: #fff; }
.btn-outline-light:hover { background: rgba(255, 255, 255, .12); transform: translateY(-2px); }
.btn-sm { height: 38px; padding: 0 16px; font-size: 13px; border-radius: 10px; }
.header-cta { display: inline-flex; align-items: center; gap: 6px; }

.article-hero {
    position: relative;
    background-size: cover;
    background-position: center;
    padding: 86px 0 64px;
    color: #fff;
    isolation: isolate;
}
.article-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(7, 20, 35, .74);
    z-index: -1;
}
.article-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at top right, rgba(245, 158, 11, .18), transparent 60%);
    z-index: -1;
}
.article-hero-content { position: relative; z-index: 1; max-width: 880px; }
.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, .78);
    margin-bottom: 18px;
}
.breadcrumb a { color: rgba(255, 255, 255, .85); }
.breadcrumb a:hover { color: var(--brand-accent-2); }
.breadcrumb i { font-size: 10px; color: rgba(255, 255, 255, .4); }
.article-hero h1 {
    font-size: clamp(25px, 4vw, 42px);
    line-height: 1.28;
    font-weight: 800;
    letter-spacing: .01em;
    margin-bottom: 18px;
}
.article-meta { display: flex; flex-wrap: wrap; gap: 16px; font-size: 14px; color: rgba(255, 255, 255, .82); }
.meta-cat {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    background: rgba(245, 158, 11, .18);
    border-radius: 999px;
    color: #fde68a;
    font-weight: 700;
}
.article-meta .meta-item { display: inline-flex; align-items: center; gap: 6px; }

.article-section { padding: 56px 0 72px; }
.article-wrap {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 32px;
    align-items: start;
}
.article-main { min-width: 0; }
.article-card {
    background: #fff;
    border-radius: 16px;
    padding: 36px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
}
.article-content { font-size: 16px; line-height: 1.9; color: var(--text-main); word-break: break-word; }
.article-content h1 { font-size: 26px; margin: 32px 0 14px; }
.article-content h2 { font-size: 23px; margin: 30px 0 12px; }
.article-content h3 { font-size: 19px; margin: 26px 0 10px; }
.article-content h4 { font-size: 17px; margin: 22px 0 8px; }
.article-content p { margin-bottom: 18px; }
.article-content ul, .article-content ol { padding-left: 24px; margin-bottom: 18px; }
.article-content li { margin-bottom: 6px; }
.article-content blockquote {
    margin: 20px 0;
    padding: 16px 20px;
    border-left: 4px solid var(--brand-accent);
    background: #fffbeb;
    border-radius: 8px;
    color: var(--text-muted);
}
.article-content img { border-radius: 12px; margin: 20px 0; box-shadow: var(--shadow-sm); }
.article-content a { color: var(--brand-primary); text-decoration: underline; text-underline-offset: 4px; }
.article-content table { width: 100%; border-collapse: collapse; margin: 18px 0; }
.article-content th, .article-content td { padding: 10px 12px; border: 1px solid var(--border-light); text-align: left; }
.article-content th { background: var(--bg-body); font-weight: 700; }
.article-tags {
    display: flex;
    gap: 8px;
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid var(--border-light);
    flex-wrap: wrap;
}
.tag {
    display: inline-flex;
    align-items: center;
    background: var(--bg-body);
    border: 1px solid var(--border-light);
    padding: 5px 14px;
    border-radius: 999px;
    font-size: 13px;
    color: var(--text-muted);
}
.article-share {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid var(--border-light);
    font-size: 14px;
    color: var(--text-muted);
}
.share-btn {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--bg-body);
    border: 1px solid var(--border-light);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    transition: var(--transition);
}
.share-btn:hover { background: var(--brand-primary); color: #fff; border-color: var(--brand-primary); transform: translateY(-2px); }

.notfound-card { text-align: center; padding: 60px 36px; }
.notfound-icon { font-size: 52px; color: var(--brand-accent); margin-bottom: 18px; }
.notfound-card h2 { font-size: 26px; margin-bottom: 12px; }
.notfound-card p { color: var(--text-muted); max-width: 460px; margin: 0 auto 24px; }
.notfound-actions { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }

.article-sidebar { display: flex; flex-direction: column; gap: 20px; position: sticky; top: 88px; }
.side-card {
    background: #fff;
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}
.side-title { font-size: 16px; font-weight: 800; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; color: var(--text-main); }
.side-nav-list { list-style: none; }
.side-nav-list li { border-bottom: 1px solid var(--border-light); }
.side-nav-list li:last-child { border-bottom: none; }
.side-nav-list a { display: flex; align-items: center; gap: 12px; padding: 13px 6px; color: var(--text-muted); font-weight: 600; transition: var(--transition); }
.side-nav-list a:hover { color: var(--brand-primary); transform: translateX(4px); }
.side-nav-list a i {
    width: 34px;
    height: 34px;
    border-radius: 9px;
    background: var(--bg-body);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--brand-primary);
    font-size: 14px;
    flex-shrink: 0;
}
.side-nav-list em { display: block; font-size: 12px; font-style: normal; color: var(--text-muted); font-weight: 400; }
.side-cover-card { position: relative; overflow: hidden; min-height: 190px; display: flex; align-items: flex-end; padding: 0; }
.side-cover-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.side-cover-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 30%, rgba(7, 20, 35, .88)); }
.side-cover-inner { position: relative; z-index: 1; padding: 20px; color: #fff; }
.side-cover-inner h3 { font-size: 18px; margin-bottom: 4px; }
.side-cover-inner p { font-size: 13px; opacity: .85; margin-bottom: 12px; }
.faq-preview-list { list-style: none; }
.faq-preview-list li a {
    display: block;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-light);
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
    transition: var(--transition);
}
.faq-preview-list li:last-child a { border-bottom: none; }
.faq-preview-list a:hover { color: var(--brand-primary); padding-left: 6px; }

.related-section { background: #fff; border-top: 1px solid var(--border-light); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.related-card {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    min-height: 180px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: block;
}
.related-card img { width: 100%; height: 180px; object-fit: cover; }
.related-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(7, 20, 35, .82)); }
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.related-overlay { position: absolute; bottom: 14px; left: 16px; right: 16px; color: #fff; z-index: 1; }
.related-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    background: rgba(245, 158, 11, .9);
    color: #fff;
    padding: 3px 10px;
    border-radius: 999px;
    margin-bottom: 6px;
}
.related-overlay h3 { font-size: 15px; line-height: 1.45; }

.cta-section { padding: 0 0 72px; }
.cta-box {
    background: linear-gradient(115deg, var(--brand-dark) 0%, var(--brand-primary) 100%);
    border-radius: 20px;
    padding: 46px 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    flex-wrap: wrap;
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}
.cta-box::before {
    content: "";
    position: absolute;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: rgba(245, 158, 11, .15);
    right: -60px;
    top: -80px;
}
.cta-box::after {
    content: "";
    position: absolute;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .06);
    left: 20%;
    bottom: -50px;
}
.cta-content { position: relative; z-index: 1; }
.cta-content h2 { font-size: 26px; margin-bottom: 8px; }
.cta-content p { opacity: .82; font-size: 15px; }
.cta-actions { display: flex; gap: 12px; position: relative; z-index: 1; flex-wrap: wrap; }

.faq-section { background: var(--bg-body); border-top: 1px solid var(--border-light); }
.faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: 14px;
    overflow: hidden;
    transition: var(--transition);
}
.faq-item[open] { background: #fff; box-shadow: var(--shadow-md); border-color: transparent; }
.faq-item summary {
    list-style: none;
    padding: 18px 22px;
    font-weight: 700;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    color: var(--text-main);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i { transition: transform .3s; color: var(--brand-accent); }
.faq-item[open] summary i { transform: rotate(45deg); }
.faq-item[open] .faq-body { animation: fadeDown .3s ease; }
.faq-body { padding: 0 22px 18px; color: var(--text-muted); font-size: 15px; line-height: 1.75; }
@keyframes fadeDown {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: translateY(0); }
}
#faq { scroll-margin-top: 90px; }

.site-footer { background: #0b1c2e; color: #93a4b8; margin-top: auto; }
.site-footer .container { padding: 56px 0 0; }
.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.3fr;
    gap: 36px;
    padding-bottom: 40px;
}
.footer-logo { color: #fff; font-size: 20px; font-weight: 800; display: flex; gap: 10px; align-items: center; margin-bottom: 16px; }
.footer-logo i { color: var(--brand-accent); }
.footer-about { font-size: 14px; line-height: 1.75; max-width: 300px; opacity: .85; }
.footer-title { color: #fff; font-size: 16px; margin-bottom: 16px; font-weight: 700; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: #93a4b8; font-size: 14px; transition: var(--transition); }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-contact { font-size: 14px; line-height: 1.9; }
.footer-contact i { margin-right: 8px; color: var(--brand-accent); width: 16px; }
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .08);
    padding: 20px 0;
    text-align: center;
    font-size: 13px;
    color: #708090;
}

@media (max-width: 1024px) {
    .article-wrap { grid-template-columns: 1fr; }
    .article-sidebar { position: static; display: grid; grid-template-columns: repeat(3, 1fr); }
    .footer-top { grid-template-columns: repeat(3, 1fr); }
    .header-cta { display: none; }
}

@media (max-width: 768px) {
    .section { padding: 52px 0; }
    .header-inner { flex-wrap: wrap; }
    .search-form { display: none; }
    .main-nav {
        display: none;
        width: 100%;
        order: 3;
        flex-direction: column;
        background: #fff;
        border-radius: 12px;
        padding: 8px;
        box-shadow: var(--shadow-md);
    }
    .main-nav.open { display: flex; }
    .main-nav a { padding: 14px 16px; }
    .main-nav a.active::after { bottom: 6px; }
    .nav-toggle { display: flex; }
    .article-hero { padding: 64px 0 48px; }
    .article-card { padding: 24px; }
    .footer-top { grid-template-columns: 1fr 1fr; gap: 28px; }
    .article-sidebar { grid-template-columns: 1fr; }
    .related-grid { grid-template-columns: 1fr; }
    .cta-box { padding: 32px 24px; flex-direction: column; text-align: center; }
    .cta-actions { justify-content: center; }
    .section-head h2 { font-size: 26px; }
}

@media (max-width: 520px) {
    .container { width: 90%; }
    .header-cta, .search-form { display: none; }
    .brand-text { font-size: 17px; }
    .footer-top { grid-template-columns: 1fr; }
    .article-wrap { gap: 22px; }
    .article-card { padding: 18px; }
    .faq-item summary { font-size: 14px; }
    .breadcrumb { gap: 6px; }
    .article-hero h1 { font-size: 24px; }
    .cta-content h2 { font-size: 21px; }
}

/* roulang page: category3 */
:root {
            --primary: #1a5cff;
            --primary-dark: #0e3ea8;
            --primary-light: #e8f0ff;
            --accent: #ff6b35;
            --accent-light: #fff1eb;
            --dark: #0d1b2a;
            --dark-2: #1b2d44;
            --bg: #f6f8fc;
            --bg-white: #ffffff;
            --text: #1a2333;
            --text-weak: #5a6b85;
            --text-light: #8a9ab5;
            --border: #e2e8f2;
            --shadow-sm: 0 2px 8px rgba(13, 27, 42, 0.06);
            --shadow-md: 0 6px 20px rgba(13, 27, 42, 0.08);
            --shadow-lg: 0 16px 40px rgba(13, 27, 42, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --transition: all 0.3s ease;
            --container: 1200px;
        }

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

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

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

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

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

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

        input {
            font-family: inherit;
            border: none;
            outline: none;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(13, 27, 42, 0.03);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--dark);
            flex-shrink: 0;
            letter-spacing: -0.5px;
        }

        .logo i {
            color: var(--primary);
            font-size: 26px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: auto;
        }

        .main-nav a {
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-weak);
            transition: var(--transition);
        }

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

        .main-nav a.active {
            color: #ffffff;
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(26, 92, 255, 0.25);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .header-search {
            position: relative;
        }

        .header-search input {
            width: 180px;
            height: 40px;
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 0 16px 0 38px;
            font-size: 14px;
            background: var(--bg);
            transition: var(--transition);
        }

        .header-search input:focus {
            width: 230px;
            border-color: var(--primary);
            background: var(--bg-white);
            box-shadow: 0 0 0 4px rgba(26, 92, 255, 0.1);
        }

        .header-search i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-light);
            font-size: 14px;
            pointer-events: none;
        }

        .btn-header {
            height: 40px;
            padding: 0 22px;
            background: linear-gradient(135deg, var(--primary), #3d7bff);
            color: #fff;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(26, 92, 255, 0.25);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .btn-header:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 92, 255, 0.35);
        }

        .mobile-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--text);
            background: var(--bg);
            border: 1px solid var(--border);
        }

        @media (max-width: 992px) {
            .mobile-toggle {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px 24px;
                gap: 8px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 12px 24px rgba(13, 27, 42, 0.08);
                transform: translateY(-130%);
                opacity: 0;
                transition: var(--transition);
                align-items: stretch;
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
            }
            .main-nav a {
                padding: 12px 16px;
                border-radius: 10px;
            }
            .header-search {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                height: 64px;
                gap: 12px;
            }
            .logo {
                font-size: 18px;
            }
            .logo i {
                font-size: 20px;
            }
            .btn-header {
                padding: 0 16px;
                font-size: 13px;
            }
            .main-nav {
                top: 64px;
            }
        }

        /* ========== Page Banner ========== */
        .page-banner {
            position: relative;
            padding: 90px 0 100px;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.9), rgba(26, 92, 255, 0.55)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: #fff;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--primary));
        }

        .banner-inner {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 20px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.2);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 20px;
            backdrop-filter: blur(6px);
        }

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

        .page-banner h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -1px;
            margin-bottom: 16px;
        }

        .page-banner p {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
        }

        .banner-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 28px;
        }

        .banner-meta span {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
        }

        .banner-meta i {
            color: var(--accent);
        }

        @media (max-width: 768px) {
            .page-banner {
                padding: 60px 0 70px;
            }
            .page-banner h1 {
                font-size: 30px;
            }
            .page-banner p {
                font-size: 15px;
            }
        }

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

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

        .section-header {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 50px;
        }

        .section-header .tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 5px 14px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .section-header h2 {
            font-size: 34px;
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-header p {
            color: var(--text-weak);
            font-size: 16px;
            line-height: 1.8;
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-header {
                margin-bottom: 36px;
            }
            .section-header h2 {
                font-size: 26px;
            }
        }

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

        .skill-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .skill-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }

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

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

        .skill-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
        }

        .skill-icon.blue {
            background: var(--primary-light);
            color: var(--primary);
        }

        .skill-icon.orange {
            background: var(--accent-light);
            color: var(--accent);
        }

        .skill-icon.green {
            background: #e6f7ef;
            color: #10b981;
        }

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

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

        .skill-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }

        .skill-card .card-link i {
            font-size: 12px;
            transition: var(--transition);
        }

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

        @media (max-width: 992px) {
            .skill-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 620px) {
            .skill-grid {
                grid-template-columns: 1fr;
            }
            .skill-card {
                padding: 24px 22px;
            }
        }

        /* ========== Featured Article ========== */
        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

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

        .feature-image img {
            width: 100%;
            height: 400px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .feature-image:hover img {
            transform: scale(1.04);
        }

        .feature-image::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 40%;
            background: linear-gradient(to top, rgba(13, 27, 42, 0.5), transparent);
        }

        .feature-image .img-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            padding: 6px 14px;
            background: rgba(255, 255, 255, 0.9);
            color: var(--dark);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 700;
        }

        .feature-content .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            background: var(--accent-light);
            color: var(--accent);
            border-radius: 16px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .feature-content h3 {
            font-size: 26px;
            font-weight: 800;
            line-height: 1.4;
            margin-bottom: 16px;
        }

        .feature-content p {
            color: var(--text-weak);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .feature-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px 20px;
            margin-bottom: 28px;
        }

        .feature-list li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text);
            font-weight: 500;
        }

        .feature-list li i {
            color: var(--primary);
            font-size: 13px;
        }

        @media (max-width: 992px) {
            .feature-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .feature-image img {
                height: 320px;
            }
        }

        @media (max-width: 520px) {
            .feature-list {
                grid-template-columns: 1fr;
            }
            .feature-content h3 {
                font-size: 21px;
            }
        }

        /* ========== Stats ========== */
        .stats-section {
            background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(26, 92, 255, 0.15);
            filter: blur(60px);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 2;
        }

        .stat-item {
            text-align: center;
            padding: 24px 16px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(8px);
        }

        .stat-item .num {
            font-size: 42px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-item .num i {
            font-size: 30px;
            color: var(--accent);
            margin-right: 4px;
        }

        .stat-item .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
        }

        @media (max-width: 992px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .stat-item .num {
                font-size: 32px;
            }
        }

        /* ========== Tips List ========== */
        .tips-wrapper {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 32px;
        }

        .tips-main {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            overflow: hidden;
        }

        .tips-main-header {
            padding: 24px 28px;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .tips-main-header h3 {
            font-size: 20px;
            font-weight: 700;
        }

        .tips-main-header a {
            font-size: 14px;
            color: var(--primary);
            font-weight: 600;
        }

        .tip-item {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            padding: 22px 28px;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

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

        .tip-item:hover {
            background: var(--bg);
        }

        .tip-num {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 800;
            color: var(--primary);
            flex-shrink: 0;
        }

        .tip-num.hot {
            background: var(--accent-light);
            color: var(--accent);
        }

        .tip-content h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 4px;
            transition: var(--transition);
        }

        .tip-content p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.65;
        }

        .tip-item:hover .tip-content h4 {
            color: var(--primary);
        }

        .tips-sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .sidebar-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            padding: 26px;
        }

        .sidebar-card h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card h4 i {
            color: var(--primary);
        }

        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .sidebar-tags a {
            padding: 6px 14px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 16px;
            font-size: 13px;
            color: var(--text-weak);
            transition: var(--transition);
        }

        .sidebar-tags a:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: transparent;
        }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary), #3d7bff);
            color: #fff;
            padding: 28px;
            border-radius: var(--radius-md);
            text-align: center;
        }

        .sidebar-cta h4 {
            font-size: 18px;
            margin-bottom: 10px;
        }

        .sidebar-cta p {
            font-size: 14px;
            opacity: 0.85;
            margin-bottom: 16px;
        }

        @media (max-width: 992px) {
            .tips-wrapper {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 520px) {
            .tip-item {
                padding: 16px;
            }
            .tips-main-header {
                padding: 18px 16px;
            }
        }

        /* ========== Steps / Flow ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .step-card {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            position: relative;
            transition: var(--transition);
        }

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

        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 20px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            transition: var(--transition);
        }

        .step-card:hover .step-num {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px rgba(26, 92, 255, 0.3);
        }

        .step-card h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }

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

        @media (max-width: 992px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

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

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

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

        .faq-question {
            padding: 22px 26px;
            font-size: 17px;
            font-weight: 600;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            user-select: none;
            gap: 16px;
        }

        .faq-question i {
            color: var(--primary);
            font-size: 18px;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--accent);
        }

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

        .faq-answer-inner {
            padding: 0 26px 24px;
            color: var(--text-weak);
            line-height: 1.8;
            font-size: 15px;
        }

        @media (max-width: 520px) {
            .faq-question {
                padding: 16px;
                font-size: 15px;
            }
            .faq-answer-inner {
                padding: 0 16px 18px;
                font-size: 14px;
            }
        }

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

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 50%;
            transform: translateX(-50%);
            width: 400px;
            height: 200px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
            filter: blur(50px);
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }

        .cta-inner p {
            font-size: 17px;
            opacity: 0.8;
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 38px;
            background: var(--accent);
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            border-radius: 30px;
            box-shadow: 0 8px 24px rgba(255, 107, 53, 0.35);
            transition: var(--transition);
        }

        .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 32px rgba(255, 107, 53, 0.45);
        }

        @media (max-width: 768px) {
            .cta-inner h2 {
                font-size: 26px;
            }
            .cta-inner p {
                font-size: 15px;
            }
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--dark);
            color: #fff;
            padding-top: 60px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 0.8fr 1.2fr;
            gap: 32px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-logo {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-logo i {
            color: var(--primary);
            font-size: 26px;
        }

        .footer-about {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
            max-width: 280px;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }

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

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }

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

        .footer-contact div {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 12px;
        }

        .footer-contact i {
            color: var(--primary);
            width: 18px;
        }

        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.35);
        }

        .footer-bottom p {
            margin: 0;
        }

        @media (max-width: 992px) {
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 620px) {
            .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-logo {
                font-size: 20px;
            }
        }

        /* ========== Mobile Nav overlay ========== */
        .nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(13, 27, 42, 0.5);
            z-index: 99;
            backdrop-filter: blur(4px);
        }

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