/* roulang page: index */
:root {
    --primary: #1e4b6e;
    --primary-dark: #123b57;
    --primary-light: #2d6a8e;
    --accent: #e8a33d;
    --accent-dark: #d08c20;
    --bg-body: #f4f7fb;
    --bg-white: #ffffff;
    --bg-dark: #0f2b46;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --radius-lg: 20px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --shadow-sm: 0 2px 10px rgba(15, 43, 70, 0.06);
    --shadow-md: 0 8px 28px rgba(15, 43, 70, 0.10);
    --shadow-lg: 0 16px 42px rgba(15, 43, 70, 0.16);
    --transition: 0.3s ease;
    --section-space: 96px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg-body);
    color: var(--text-main);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: all var(--transition); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }
ul, ol { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 50px;
    line-height: 1.5;
    transition: all var(--transition);
    border: 2px solid transparent;
}
.btn i { font-size: 14px; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 4px 16px rgba(232, 163, 61, 0.35); }
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232, 163, 61, 0.45); }
.btn-outline { background: rgba(255,255,255,0.12); color: #fff; border-color: rgba(255,255,255,0.7); backdrop-filter: blur(6px); }
.btn-outline:hover { background: rgba(255,255,255,0.22); border-color: #fff; transform: translateY(-2px); }
.btn-secondary { background: var(--primary); color: #fff; box-shadow: 0 4px 16px rgba(30, 75, 110, 0.25); }
.btn-secondary:hover { background: var(--primary-dark); transform: translateY(-2px); }
.btn-light { background: #fff; color: var(--primary); box-shadow: 0 4px 16px rgba(0,0,0,0.12); }
.btn-light:hover { background: var(--bg-body); transform: translateY(-2px); }
.btn-lg { padding: 16px 40px; font-size: 16px; }

.section { padding: var(--section-space) 0; position: relative; }
.section-tag {
    display: inline-block;
    background: rgba(232, 163, 61, 0.12);
    color: var(--accent-dark);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1px;
    padding: 6px 18px;
    border-radius: 50px;
    margin-bottom: 16px;
}
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-head h2 { font-size: 36px; line-height: 1.3; font-weight: 800; color: var(--primary-dark); margin-bottom: 14px; }
.section-head p { color: var(--text-muted); font-size: 16px; }
.section-head.left { text-align: left; margin: 0 0 40px; }

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
}
.header-inner {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 16px;
}
.logo {
    font-size: 22px;
    font-weight: 800;
    color: var(--primary-dark);
    letter-spacing: 0.5px;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 2px;
}
.logo span { color: var(--accent); }
.nav-left, .nav-right { display: flex; align-items: center; gap: 8px; }
.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-main);
    padding: 8px 16px;
    border-radius: 50px;
    position: relative;
}
.nav-link:hover { color: var(--primary); background: rgba(30, 75, 110, 0.06); }
.nav-link.active { color: var(--primary-dark); background: rgba(30, 75, 110, 0.1); font-weight: 600; }
.nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: var(--bg-body);
    color: var(--primary-dark);
    font-size: 20px;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}
.nav-toggle:hover { background: rgba(30,75,110,0.12); }
.mobile-menu {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    padding: 20px 24px;
    flex-direction: column;
    gap: 4px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 500;
    color: var(--text-main);
}
.mobile-menu a:hover { background: var(--bg-body); color: var(--primary); }
.mobile-menu a.active { background: rgba(30,75,110,0.08); color: var(--primary-dark); font-weight: 600; }

/* Hero */
.hero { position: relative; padding: 120px 0 100px; overflow: hidden; }
.hero-bg {
    position: absolute; inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}
.hero-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(115deg, rgba(15, 43, 70, 0.92) 20%, rgba(30, 75, 110, 0.78) 60%, rgba(45, 106, 142, 0.5) 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 760px; }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.14);
    border: 1px solid rgba(255,255,255,0.25);
    backdrop-filter: blur(8px);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    padding: 7px 20px;
    border-radius: 50px;
    margin-bottom: 24px;
}
.hero-badge i { color: var(--accent); }
.hero h1 {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.25;
    color: #fff;
    margin-bottom: 20px;
    letter-spacing: 1px;
}
.hero h1 span { color: var(--accent); }
.hero p {
    font-size: 17px;
    line-height: 1.8;
    color: rgba(255,255,255,0.85);
    margin-bottom: 36px;
    max-width: 620px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 60px; }
.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    padding-top: 32px;
    border-top: 1px solid rgba(255,255,255,0.18);
}
.hero-stats div { display: flex; flex-direction: column; }
.hero-stats strong { font-size: 28px; font-weight: 800; color: #fff; }
.hero-stats span { font-size: 13px; color: rgba(255,255,255,0.7); margin-top: 4px; }

/* Intro */
.intro-section { background: var(--bg-white); }
.intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.intro-media { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.intro-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(15,43,70,0.12), transparent); }
.intro-media img { width: 100%; height: 340px; object-fit: cover; }
.intro-content h2 { font-size: 34px; font-weight: 800; color: var(--primary-dark); line-height: 1.35; margin-bottom: 18px; }
.intro-content > p { color: var(--text-muted); font-size: 16px; margin-bottom: 28px; }
.feature-list { display: flex; flex-direction: column; gap: 14px; margin-bottom: 32px; }
.feature-list li { display: flex; align-items: center; gap: 12px; font-size: 15px; color: var(--text-main); }
.feature-list i { color: var(--accent); font-size: 18px; flex-shrink: 0; }

/* Categories */
.categories-section { background: var(--bg-body); }
.categories-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.category-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.category-img { height: 200px; overflow: hidden; position: relative; }
.category-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.category-card:hover .category-img img { transform: scale(1.05); }
.category-img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(15,43,70,0.35), transparent 60%); }
.category-body { padding: 28px 28px 32px; flex: 1; display: flex; flex-direction: column; position: relative; }
.category-num {
    position: absolute;
    top: -42px;
    right: 24px;
    font-size: 52px;
    font-weight: 800;
    color: rgba(255,255,255,0.8);
    line-height: 1;
    z-index: 1;
    text-shadow: 0 2px 12px rgba(0,0,0,0.2);
}
.category-body h3 { font-size: 21px; font-weight: 700; color: var(--primary-dark); margin-bottom: 10px; }
.category-body p { font-size: 14px; color: var(--text-muted); line-height: 1.7; flex: 1; margin-bottom: 18px; }
.category-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.category-link i { transition: transform var(--transition); font-size: 13px; }
.category-card:hover .category-link { color: var(--accent-dark); }
.category-card:hover .category-link i { transform: translateX(4px); }

/* News */
.news-section { background: var(--bg-white); }
.posts-list { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.post-card {
    background: var(--bg-body);
    border-radius: var(--radius-md);
    padding: 28px;
    border: 1px solid var(--border);
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}
.post-card:hover { background: var(--bg-white); box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: transparent; }
.post-meta { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.post-cat {
    background: rgba(232, 163, 61, 0.15);
    color: var(--accent-dark);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 50px;
}
.post-date { font-size: 13px; color: var(--text-muted); }
.post-date i { margin-right: 4px; }
.post-card h3 { font-size: 18px; font-weight: 700; color: var(--primary-dark); margin-bottom: 10px; line-height: 1.5; }
.post-card p { font-size: 14px; color: var(--text-muted); line-height: 1.75; margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.post-more { font-size: 13px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; margin-top: auto; }
.post-card:hover .post-more { color: var(--accent-dark); }
.post-card:hover .post-more i { transform: translateX(4px); transition: transform var(--transition); }
.empty-tip {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px;
    background: var(--bg-body);
    border-radius: var(--radius-md);
    border: 1px dashed var(--border);
    color: var(--text-muted);
    font-size: 15px;
}

/* Process */
.process-section { background: var(--bg-dark); }
.process-section .section-tag { background: rgba(232,163,61,0.16); }
.process-section .section-head h2 { color: #fff; }
.process-section .section-head p { color: rgba(255,255,255,0.65); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.process-step {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    text-align: center;
    position: relative;
    transition: all var(--transition);
}
.process-step:hover { background: rgba(255,255,255,0.1); transform: translateY(-4px); }
.step-num {
    position: absolute;
    top: 18px;
    right: 22px;
    font-size: 40px;
    font-weight: 800;
    color: rgba(255,255,255,0.12);
    line-height: 1;
}
.process-step i { font-size: 34px; color: var(--accent); margin-bottom: 20px; display: block; }
.process-step h3 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 10px; }
.process-step p { font-size: 14px; color: rgba(255,255,255,0.6); line-height: 1.7; }

/* Stats */
.stats-section { background: var(--primary); padding: 64px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; text-align: center; }
.stats-grid div { display: flex; flex-direction: column; align-items: center; }
.stats-grid i { font-size: 28px; color: var(--accent); margin-bottom: 14px; }
.stats-grid strong { font-size: 34px; font-weight: 800; color: #fff; line-height: 1.3; }
.stats-grid span { font-size: 14px; color: rgba(255,255,255,0.7); margin-top: 4px; }

/* FAQ */
.faq-section { background: var(--bg-white); }
.faq-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 64px; align-items: start; }
.faq-heading h2 { font-size: 34px; font-weight: 800; color: var(--primary-dark); margin-bottom: 18px; line-height: 1.35; }
.faq-heading p { color: var(--text-muted); font-size: 16px; }
.faq-list { display: flex; flex-direction: column; gap: 14px; }
.faq-item {
    background: var(--bg-body);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition);
}
.faq-item:hover { border-color: rgba(232,163,61,0.4); box-shadow: var(--shadow-sm); }
.faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    color: var(--primary-dark);
    list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i { color: var(--accent); font-size: 14px; transition: transform var(--transition); flex-shrink: 0; }
.faq-item[open] summary i { transform: rotate(45deg); }
.faq-item p { padding: 0 24px 22px; font-size: 14px; color: var(--text-muted); line-height: 1.8; }

/* CTA */
.cta-section { padding: 80px 0; background: linear-gradient(135deg, var(--primary-dark), var(--primary-light)); }
.cta-card {
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
    padding: 56px 48px;
    border-radius: var(--radius-lg);
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.16);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-lg);
}
.cta-card h2 { font-size: 34px; font-weight: 800; color: #fff; margin-bottom: 14px; }
.cta-card p { font-size: 16px; color: rgba(255,255,255,0.75); margin-bottom: 32px; }
.cta-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; }

/* Footer */
.site-footer { background: var(--bg-dark); color: rgba(255,255,255,0.7); padding-top: 72px; }
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-logo { font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 16px; display: inline-block; }
.footer-logo span { color: var(--accent); }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 300px; }
.footer-links h4, .footer-contact h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 20px; }
.footer-links a { display: block; font-size: 14px; padding: 6px 0; color: rgba(255,255,255,0.65); }
.footer-links a:hover { color: var(--accent); padding-left: 6px; }
.footer-contact p { font-size: 14px; line-height: 1.8; margin-bottom: 8px; }
.footer-bottom { padding: 24px 0; }
.footer-bottom .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,0.4); }

/* Mobile Menu */
@media (max-width: 1024px) {
    :root { --section-space: 72px; }
    .categories-grid { grid-template-columns: 1fr 1fr; }
    .process-grid { grid-template-columns: 1fr 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .intro-grid { gap: 40px; }
    .faq-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .header-inner { height: 64px; }
    .nav-left, .nav-right { display: none; }
    .nav-toggle { display: inline-flex; }
    .mobile-menu { top: 64px; }
    .hero { padding: 80px 0 64px; }
    .hero h1 { font-size: 38px; }
    .hero p { font-size: 15px; }
    .hero-actions { gap: 12px; }
    .hero-stats { gap: 24px; }
    .hero-stats strong { font-size: 22px; }
    .intro-grid { grid-template-columns: 1fr; }
    .intro-media img { height: 240px; }
    .section-head h2 { font-size: 28px; }
    .posts-list { grid-template-columns: 1fr; }
    .process-grid { grid-template-columns: 1fr; gap: 16px; }
    .stats-grid { gap: 28px; }
    .stats-grid strong { font-size: 26px; }
    .cta-card { padding: 40px 24px; }
    .cta-card h2 { font-size: 26px; }
}

@media (max-width: 520px) {
    .container { padding: 0 18px; }
    .categories-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 32px; }
    .hero p { font-size: 14px; }
    .hero-actions .btn { flex: 1; justify-content: center; }
    .hero-stats { gap: 16px; flex-direction: column; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom .container { flex-direction: column; text-align: center; }
    .section-head h2 { font-size: 25px; }
    .section-head p { font-size: 14px; }
    .feature-list li { font-size: 14px; }
    .topic-card { padding: 16px; }
    .topic-card h3 { font-size: 15px; }
    .topic-card p { font-size: 13px; }
}

/* roulang page: category1 */
:root {
  --primary: #0b1e3b;
  --primary-light: #132a52;
  --primary-soft: #eef1f8;
  --accent: #d4a43a;
  --accent-dark: #b8892a;
  --accent-soft: #faf3e3;
  --bg: #f6f7fb;
  --white: #ffffff;
  --text: #1c2333;
  --text-weak: #5a6478;
  --border: #e3e7f0;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 10px rgba(11, 30, 59, 0.05);
  --shadow-md: 0 8px 28px rgba(11, 30, 59, 0.08);
  --shadow-lg: 0 18px 48px rgba(11, 30, 59, 0.12);
  --space-section: 88px;
  --max-width: 1200px;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

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

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

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

ul, ol {
  list-style: none;
}

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

.container {
  max-width: var(--max-width);
  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(10px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 16px;
  position: relative;
}

.site-logo {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--primary);
  white-space: nowrap;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  line-height: 1.3;
  text-align: center;
}

.site-logo span {
  color: var(--accent);
  font-weight: 700;
}

.nav-left,
.nav-right {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-weak);
  transition: all 0.3s ease;
  white-space: nowrap;
}

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

.nav-link.active {
  color: var(--white);
  background: var(--primary);
  box-shadow: 0 4px 12px rgba(11, 30, 59, 0.2);
}

.nav-toggle {
  display: none;
  font-size: 1.35rem;
  color: var(--primary);
  background: var(--primary-soft);
  width: 44px;
  height: 44px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.nav-toggle:hover {
  background: var(--accent-soft);
  color: var(--accent-dark);
}

/* ========== Banner ========== */
.page-banner {
  position: relative;
  padding: 110px 0 96px;
  background: linear-gradient(135deg, rgba(11, 30, 59, 0.92), rgba(19, 42, 82, 0.82)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: var(--white);
  text-align: center;
  overflow: hidden;
}

.page-banner::after {
  content: '';
  position: absolute;
  bottom: -40px;
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  height: 80px;
  background: radial-gradient(ellipse, rgba(212, 164, 58, 0.2), transparent 70%);
}

.breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.75);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 6px 16px;
  border-radius: 30px;
  margin-bottom: 28px;
  backdrop-filter: blur(4px);
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
}

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

.breadcrumb i {
  font-size: 0.7rem;
  opacity: 0.7;
}

.page-banner h1 {
  font-size: 2.7rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}

.page-banner h1 span {
  color: var(--accent);
}

.banner-desc {
  max-width: 680px;
  margin: 0 auto;
  font-size: 1.08rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
}

.banner-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 8px 18px;
  border-radius: 30px;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(4px);
}

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

/* ========== Section Common ========== */
.section {
  padding: var(--space-section) 0;
}

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

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 52px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-dark);
  background: var(--accent-soft);
  padding: 6px 16px;
  border-radius: 30px;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

.section-header h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.35;
  margin-bottom: 14px;
}

.section-header p {
  font-size: 1rem;
  color: var(--text-weak);
  line-height: 1.8;
}

/* ========== Entry Cards ========== */
.entry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.entry-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.35s ease;
  display: flex;
  flex-direction: column;
}

.entry-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(212, 164, 58, 0.4);
}

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

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

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

.entry-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(11, 30, 59, 0.25));
}

.entry-card-body {
  padding: 26px 26px 30px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.entry-card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--accent-dark);
  background: var(--accent-soft);
  margin-bottom: 18px;
  margin-top: -44px;
  position: relative;
  z-index: 2;
  border: 3px solid var(--white);
  box-shadow: var(--shadow-sm);
}

.entry-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}

.entry-card p {
  font-size: 0.94rem;
  color: var(--text-weak);
  line-height: 1.75;
  flex: 1;
}

.entry-card-meta {
  margin-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border);
  padding-top: 16px;
  font-size: 0.85rem;
  color: var(--text-weak);
}

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

/* ========== Guide Steps ========== */
.guide-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.guide-section::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(212, 164, 58, 0.08);
}

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

.guide-section .section-header p {
  color: rgba(255, 255, 255, 0.75);
}

.guide-section .section-tag {
  background: rgba(212, 164, 58, 0.2);
  color: var(--accent);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  position: relative;
}

.step-card {
  position: relative;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  backdrop-filter: blur(4px);
  transition: all 0.35s ease;
}

.step-card:hover {
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-4px);
}

.step-num {
  width: 44px;
  height: 44px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--primary);
  font-weight: 800;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 16px rgba(212, 164, 58, 0.35);
}

.step-card h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-card p {
  font-size: 0.86rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.6;
}

.step-arrow {
  position: absolute;
  top: 50%;
  right: -18px;
  transform: translateY(-50%);
  color: var(--accent);
  font-size: 0.9rem;
  z-index: 2;
  opacity: 0.8;
}

.step-card:last-child .step-arrow {
  display: none;
}

/* ========== News / Updates ========== */
.update-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  align-items: stretch;
}

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

.update-item {
  display: flex;
  gap: 18px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  transition: all 0.3s ease;
  cursor: default;
}

.update-item:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(212, 164, 58, 0.35);
  transform: translateX(4px);
}

.update-date {
  min-width: 70px;
  text-align: center;
  background: var(--primary-soft);
  border-radius: 10px;
  padding: 10px 6px;
  align-self: center;
}

.update-date .day {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  display: block;
}

.update-date .month {
  font-size: 0.76rem;
  color: var(--text-weak);
}

.update-content {
  flex: 1;
}

.update-content h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 4px;
}

.update-content p {
  font-size: 0.89rem;
  color: var(--text-weak);
  line-height: 1.6;
}

.update-tag {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--accent-dark);
  background: var(--accent-soft);
  padding: 2px 10px;
  border-radius: 20px;
  margin-top: 6px;
}

.update-aside {
  background: linear-gradient(160deg, var(--primary-soft), var(--white));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.update-aside h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 14px;
}

.update-aside p {
  font-size: 0.94rem;
  color: var(--text-weak);
  line-height: 1.8;
  margin-bottom: 20px;
}

.update-aside .check-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.update-aside .check-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text);
}

.update-aside .check-list i {
  color: var(--accent);
  margin-top: 4px;
  font-size: 0.9rem;
}

/* ========== FAQ ========== */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  transition: all 0.3s ease;
}

.faq-item:hover {
  box-shadow: var(--shadow-sm);
  border-color: rgba(212, 164, 58, 0.3);
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--primary);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary i {
  color: var(--accent);
  font-size: 0.85rem;
  transition: transform 0.35s ease;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-soft);
  border-radius: 50%;
}

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

.faq-item .faq-answer {
  padding-top: 16px;
  margin-top: 14px;
  border-top: 1px solid var(--border);
  font-size: 0.94rem;
  color: var(--text-weak);
  line-height: 1.8;
}

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

.cta-box {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: var(--radius-lg);
  padding: 56px 50px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -40px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(212, 164, 58, 0.15);
}

.cta-box::after {
  content: '';
  position: absolute;
  bottom: -50px;
  left: 30%;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(212, 164, 58, 0.08);
}

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

.cta-content h3 {
  color: var(--white);
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.cta-content p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.98rem;
  line-height: 1.7;
}

.cta-actions {
  display: flex;
  gap: 14px;
  flex-shrink: 0;
  position: relative;
  z-index: 2;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 28px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: var(--primary);
  box-shadow: 0 6px 20px rgba(212, 164, 58, 0.3);
}

.btn-primary:hover {
  background: var(--accent-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(212, 164, 58, 0.4);
}

.btn-outline-light {
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--white);
  background: transparent;
}

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

/* ========== Footer ========== */
.site-footer {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.7);
  padding-top: 64px;
  margin-top: 88px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 40px;
  padding-bottom: 44px;
}

.footer-logo {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 0.02em;
  margin-bottom: 14px;
  display: inline-block;
}

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

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
  max-width: 320px;
}

.footer-links h4,
.footer-contact h4 {
  color: var(--white);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 18px;
  letter-spacing: 0.03em;
}

.footer-links a {
  display: block;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  padding: 5px 0;
  transition: all 0.3s ease;
}

.footer-links a:hover {
  color: var(--accent);
  padding-left: 6px;
}

.footer-contact p {
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 8px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 22px 0;
}

.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

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

/* ========== Focus & Accessibility ========== */
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(212, 164, 58, 0.5);
  outline-offset: 3px;
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .entry-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid {
    grid-template-columns: repeat(3, 1fr);
    row-gap: 28px;
  }
  .step-arrow {
    display: none;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
  .update-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --space-section: 60px;
  }
  .site-header {
    padding: 0 16px;
  }
  .header-inner {
    height: auto;
    min-height: 72px;
    flex-wrap: wrap;
    padding: 12px 0;
    justify-content: space-between;
  }
  .site-logo {
    position: static;
    transform: none;
    font-size: 1.25rem;
    order: 1;
  }
  .nav-toggle {
    display: flex;
    order: 2;
  }
  .nav-left,
  .nav-right {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    order: 3;
    gap: 4px;
    padding-top: 10px;
  }
  .header-inner.nav-open .nav-left,
  .header-inner.nav-open .nav-right {
    display: flex;
  }
  .nav-link {
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 1rem;
  }
  .page-banner {
    padding: 80px 0 70px;
  }
  .page-banner h1 {
    font-size: 1.9rem;
  }
  .banner-desc {
    font-size: 0.98rem;
    padding: 0 20px;
  }
  .entry-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .update-item {
    flex-direction: row;
    padding: 18px;
  }
  .cta-box {
    flex-direction: column;
    padding: 40px 28px;
    text-align: center;
    align-items: flex-start;
  }
  .cta-actions {
    width: 100%;
  }
  .cta-actions .btn {
    flex: 1;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .footer-bottom .container {
    flex-direction: column;
    text-align: center;
  }
  .faq-item {
    padding: 20px;
  }
  .section-header h2 {
    font-size: 1.55rem;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }
  .page-banner h1 {
    font-size: 1.55rem;
  }
  .banner-badges {
    gap: 8px;
  }
  .badge {
    font-size: 0.8rem;
    padding: 6px 14px;
  }
  .entry-card-body {
    padding: 22px;
  }
  .update-aside {
    padding: 26px 22px;
  }
  .cta-actions {
    flex-direction: column;
  }
  .cta-actions .btn {
    width: 100%;
  }
  .section-tag {
    font-size: 0.8rem;
    padding: 5px 12px;
  }
  .faq-item summary {
    font-size: 0.95rem;
  }
}

/* roulang page: article */
:root {
        --primary: #2563eb;
        --primary-dark: #1e40af;
        --primary-light: #eff6ff;
        --secondary: #0ea5e9;
        --accent: #f59e0b;
        --bg: #f8fafc;
        --surface: #ffffff;
        --text: #0f172a;
        --text-muted: #64748b;
        --border: #e2e8f0;
        --radius: 18px;
        --radius-sm: 10px;
        --shadow-sm: 0 2px 12px rgba(15, 23, 42, 0.06);
        --shadow: 0 8px 30px rgba(15, 23, 42, 0.08);
        --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.12);
        --transition: all 0.3s ease;
    }

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

    html {
        scroll-behavior: smooth;
        -webkit-tap-highlight-color: transparent;
    }

    body {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        background: var(--bg);
        color: var(--text);
        line-height: 1.75;
        font-size: 16px;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

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

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

    button {
        font-family: inherit;
        border: none;
        background: none;
        cursor: pointer;
        transition: var(--transition);
    }

    ul, ol {
        list-style: none;
    }

    .container {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
    }

    /* ===== Header ===== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        border-bottom: 1px solid rgba(226, 232, 240, 0.8);
        box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
    }

    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 76px;
        gap: 20px;
        position: relative;
    }

    .nav-left,
    .nav-right {
        display: flex;
        align-items: center;
        gap: 6px;
        flex: 1;
    }

    .nav-right {
        justify-content: flex-end;
    }

    .site-logo {
        display: inline-flex;
        align-items: center;
        font-size: 24px;
        font-weight: 800;
        letter-spacing: 0.5px;
        color: var(--text);
        white-space: nowrap;
        flex-shrink: 0;
        transition: var(--transition);
    }

    .site-logo:hover {
        opacity: 0.85;
    }

    .site-logo span {
        color: var(--primary);
    }

    .nav-link {
        display: inline-block;
        padding: 9px 18px;
        border-radius: 999px;
        font-size: 15px;
        font-weight: 500;
        color: var(--text-muted);
        line-height: 1.4;
        transition: var(--transition);
    }

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

    .nav-link.active {
        color: var(--primary);
        background: var(--primary-light);
        font-weight: 600;
    }

    .nav-toggle {
        display: none;
        width: 44px;
        height: 44px;
        border-radius: 12px;
        align-items: center;
        justify-content: center;
        background: var(--surface);
        border: 1px solid var(--border);
        color: var(--text);
        font-size: 20px;
        position: absolute;
        right: 16px;
        top: 50%;
        transform: translateY(-50%);
        z-index: 1001;
    }

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

    .mobile-menu {
        position: fixed;
        top: 68px;
        left: 0;
        right: 0;
        background: var(--surface);
        z-index: 999;
        padding: 20px 24px 24px;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 16px 40px rgba(15, 23, 42, 0.12);
        transform: translateY(-12px);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }

    .mobile-menu.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .mobile-menu .nav-link {
        display: block;
        padding: 14px 16px;
        border-radius: 12px;
        font-size: 16px;
        margin-bottom: 4px;
    }

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

    /* ===== Breadcrumb ===== */
    .breadcrumb-bar {
        background: var(--surface);
        border-bottom: 1px solid var(--border);
        padding: 14px 0;
        font-size: 14px;
    }

    .breadcrumb-inner {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 4px;
        overflow: hidden;
    }

    .breadcrumb-inner a {
        color: var(--text-muted);
        transition: var(--transition);
        white-space: nowrap;
    }

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

    .breadcrumb-sep {
        color: #cbd5e1;
        margin: 0 6px;
        flex-shrink: 0;
    }

    .breadcrumb-inner .current {
        color: var(--text);
        font-weight: 500;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 380px;
    }

    /* ===== Article Hero ===== */
    .article-hero {
        position: relative;
        padding: 88px 0 80px;
        background-size: cover;
        background-position: center;
        color: #fff;
        isolation: isolate;
    }

    .article-hero::before {
        content: '';
        position: absolute;
        inset: 0;
        z-index: -1;
        background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(30, 64, 175, 0.78) 100%);
    }

    .article-hero-inner {
        max-width: 860px;
    }

    .article-badge {
        display: inline-block;
        padding: 6px 16px;
        background: rgba(255, 255, 255, 0.15);
        border: 1px solid rgba(255, 255, 255, 0.3);
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
        border-radius: 999px;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 0.5px;
        margin-bottom: 20px;
    }

    .article-hero h1 {
        font-size: 40px;
        line-height: 1.25;
        font-weight: 800;
        letter-spacing: -0.5px;
        margin-bottom: 20px;
        word-break: break-word;
    }

    .article-meta {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 20px;
        font-size: 14px;
        color: rgba(255, 255, 255, 0.85);
    }

    .meta-item {
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }

    .meta-item svg {
        width: 16px;
        height: 16px;
        flex-shrink: 0;
    }

    /* ===== Article Body ===== */
    .article-body-section {
        padding: 64px 0 80px;
    }

    .article-grid {
        display: grid;
        grid-template-columns: minmax(0, 1fr) 340px;
        gap: 48px;
        align-items: start;
    }

    .article-card {
        background: var(--surface);
        border-radius: var(--radius);
        border: 1px solid var(--border);
        box-shadow: var(--shadow);
        padding: 40px;
        overflow: hidden;
    }

    .article-cover {
        width: 100%;
        border-radius: var(--radius);
        margin-bottom: 36px;
        aspect-ratio: 16 / 8;
        object-fit: cover;
        box-shadow: var(--shadow);
    }

    .article-text {
        font-size: 16.5px;
        line-height: 1.9;
        color: var(--text);
    }

    .article-text h2 {
        font-size: 26px;
        font-weight: 700;
        margin: 40px 0 16px;
        padding-bottom: 12px;
        border-bottom: 2px solid var(--primary-light);
        color: var(--text);
        line-height: 1.4;
    }

    .article-text h3 {
        font-size: 20px;
        font-weight: 600;
        margin: 32px 0 12px;
        color: var(--text);
        line-height: 1.4;
    }

    .article-text h4 {
        font-size: 18px;
        font-weight: 600;
        margin: 24px 0 10px;
        color: var(--text);
    }

    .article-text p {
        margin-bottom: 20px;
    }

    .article-text a {
        color: var(--primary);
        border-bottom: 1px solid var(--primary-light);
    }

    .article-text a:hover {
        border-bottom-color: var(--primary);
    }

    .article-text ul,
    .article-text ol {
        margin: 16px 0 24px;
        padding-left: 24px;
    }

    .article-text ul li {
        position: relative;
        padding-left: 16px;
        margin-bottom: 8px;
    }

    .article-text ul li::before {
        content: '';
        position: absolute;
        left: 0;
        top: 12px;
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: var(--primary);
    }

    .article-text ol {
        list-style: decimal;
    }

    .article-text ol li {
        margin-bottom: 8px;
        padding-left: 4px;
    }

    .article-text blockquote {
        background: var(--primary-light);
        border-left: 4px solid var(--primary);
        padding: 20px 24px;
        border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        margin: 24px 0;
        color: var(--text);
        font-style: normal;
    }

    .article-text blockquote p {
        margin-bottom: 0;
    }

    .article-text img {
        border-radius: var(--radius);
        margin: 24px 0;
        box-shadow: var(--shadow);
    }

    .article-text code {
        background: #f1f5f9;
        padding: 2px 8px;
        border-radius: 6px;
        font-size: 14px;
        color: var(--primary);
        word-break: break-all;
    }

    .article-text table {
        width: 100%;
        border-collapse: collapse;
        margin: 24px 0;
        font-size: 15px;
    }

    .article-text table th,
    .article-text table td {
        border: 1px solid var(--border);
        padding: 12px 16px;
        text-align: left;
    }

    .article-text table th {
        background: var(--primary-light);
        font-weight: 600;
    }

    .article-text table tr:nth-child(even) {
        background: var(--bg);
    }

    .article-text hr {
        border: none;
        border-top: 1px solid var(--border);
        margin: 32px 0;
    }

    .article-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-top: 36px;
        padding-top: 24px;
        border-top: 1px solid var(--border);
    }

    .tag {
        display: inline-block;
        padding: 6px 16px;
        background: var(--primary-light);
        color: var(--primary);
        border-radius: 999px;
        font-size: 13px;
        font-weight: 500;
        transition: var(--transition);
    }

    .tag:hover {
        background: var(--primary);
        color: #fff;
    }

    /* ===== Not Found ===== */
    .not-found {
        text-align: center;
        padding: 80px 32px;
    }

    .not-found h2 {
        font-size: 32px;
        font-weight: 800;
        margin-bottom: 16px;
        color: var(--text);
    }

    .not-found p {
        color: var(--text-muted);
        margin-bottom: 28px;
        font-size: 16px;
    }

    /* ===== Buttons ===== */
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 32px;
        border-radius: 999px;
        font-size: 15px;
        font-weight: 600;
        transition: all 0.3s ease;
        border: 2px solid transparent;
        line-height: 1.4;
        text-align: center;
    }

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

    .btn-primary:hover {
        background: var(--primary-dark);
        border-color: var(--primary-dark);
        transform: translateY(-2px);
        box-shadow: 0 8px 24px rgba(37, 99, 235, 0.3);
    }

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

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

    .btn-lg {
        padding: 14px 40px;
        font-size: 16px;
    }

    .btn-block {
        width: 100%;
    }

    .btn:focus-visible {
        outline: 3px solid rgba(37, 99, 235, 0.4);
        outline-offset: 2px;
    }

    /* ===== Sidebar ===== */
    .article-sidebar {
        position: sticky;
        top: 104px;
        display: flex;
        flex-direction: column;
        gap: 24px;
    }

    .sidebar-card {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 28px;
        box-shadow: var(--shadow-sm);
        transition: var(--transition);
    }

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

    .sidebar-title {
        font-size: 17px;
        font-weight: 700;
        margin-bottom: 16px;
        padding-bottom: 12px;
        border-bottom: 2px solid var(--primary-light);
        position: relative;
    }

    .sidebar-title::after {
        content: '';
        position: absolute;
        bottom: -2px;
        left: 0;
        width: 48px;
        height: 2px;
        background: var(--primary);
    }

    .sidebar-links li {
        margin-bottom: 4px;
    }

    .sidebar-links a {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 10px 12px;
        border-radius: 10px;
        color: var(--text);
        font-size: 15px;
        transition: var(--transition);
    }

    .sidebar-links a:hover {
        background: var(--primary-light);
        color: var(--primary);
        padding-left: 16px;
    }

    .link-icon {
        color: var(--primary);
        font-weight: 700;
        font-size: 16px;
        flex-shrink: 0;
    }

    .sidebar-text {
        font-size: 14px;
        line-height: 1.8;
        color: var(--text-muted);
        margin-bottom: 18px;
    }

    /* ===== Section Head ===== */
    .section-head {
        text-align: center;
        max-width: 640px;
        margin: 0 auto 48px;
    }

    .section-overline {
        display: inline-block;
        font-size: 13px;
        font-weight: 600;
        color: var(--primary);
        text-transform: uppercase;
        letter-spacing: 2px;
        margin-bottom: 10px;
    }

    .section-head h2 {
        font-size: 32px;
        font-weight: 800;
        line-height: 1.3;
        margin-bottom: 12px;
        letter-spacing: -0.5px;
        color: var(--text);
    }

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

    /* ===== Key Section ===== */
    .key-section {
        background: var(--surface);
        padding: 80px 0;
        border-top: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
    }

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

    .key-card {
        background: var(--bg);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 32px;
        transition: var(--transition);
    }

    .key-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow);
        border-color: var(--primary-light);
        background: var(--surface);
    }

    .key-icon {
        width: 56px;
        height: 56px;
        border-radius: 14px;
        background: var(--primary-light);
        color: var(--primary);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        font-weight: 800;
        margin-bottom: 20px;
        transition: var(--transition);
    }

    .key-card:hover .key-icon {
        background: var(--primary);
        color: #fff;
    }

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

    .key-card p {
        color: var(--text-muted);
        font-size: 15px;
        line-height: 1.75;
    }

    /* ===== Category Section ===== */
    .category-section {
        padding: 80px 0;
        background: var(--bg);
    }

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

    .category-card {
        background: var(--surface);
        border-radius: var(--radius);
        overflow: hidden;
        border: 1px solid var(--border);
        box-shadow: var(--shadow-sm);
        transition: var(--transition);
        display: block;
    }

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

    .category-card img {
        width: 100%;
        height: 160px;
        object-fit: cover;
        transition: transform 0.4s ease;
    }

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

    .category-content {
        padding: 24px;
    }

    .category-content h3 {
        font-size: 18px;
        font-weight: 700;
        margin-bottom: 8px;
        color: var(--text);
    }

    .category-content p {
        color: var(--text-muted);
        font-size: 14px;
        line-height: 1.65;
        margin-bottom: 12px;
    }

    .category-link {
        color: var(--primary);
        font-size: 14px;
        font-weight: 600;
        display: inline-flex;
        align-items: center;
        gap: 4px;
        transition: var(--transition);
    }

    .category-card:hover .category-link {
        gap: 8px;
    }

    /* ===== FAQ Section ===== */
    .faq-section {
        padding: 80px 0;
        background: var(--surface);
        border-top: 1px solid var(--border);
    }

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

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

    .faq-item.active {
        background: var(--surface);
        border-color: var(--primary-light);
        box-shadow: var(--shadow-sm);
    }

    .faq-question {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 20px 24px;
        font-size: 16px;
        font-weight: 500;
        color: var(--text);
        text-align: left;
        background: none;
        gap: 16px;
        transition: var(--transition);
    }

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

    .faq-icon {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: var(--primary-light);
        color: var(--primary);
        font-size: 18px;
        flex-shrink: 0;
        transition: var(--transition);
        line-height: 1;
    }

    .faq-item.active .faq-icon {
        transform: rotate(45deg);
        background: var(--primary);
        color: #fff;
    }

    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease;
    }

    .faq-item.active .faq-answer {
        max-height: 400px;
    }

    .faq-answer p {
        padding: 0 24px 22px;
        color: var(--text-muted);
        font-size: 15px;
        line-height: 1.8;
    }

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

    .cta-box {
        background: linear-gradient(135deg, #1e3a8a, #2563eb);
        border-radius: 24px;
        padding: 64px 48px;
        text-align: center;
        color: #fff;
        position: relative;
        overflow: hidden;
        box-shadow: var(--shadow-lg);
    }

    .cta-box::before {
        content: '';
        position: absolute;
        right: -80px;
        top: -80px;
        width: 260px;
        height: 260px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.08);
    }

    .cta-box::after {
        content: '';
        position: absolute;
        left: -40px;
        bottom: -100px;
        width: 200px;
        height: 200px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.05);
    }

    .cta-box h2 {
        font-size: 36px;
        font-weight: 800;
        margin-bottom: 12px;
        position: relative;
        z-index: 1;
        letter-spacing: -0.5px;
    }

    .cta-box p {
        font-size: 16px;
        color: rgba(255, 255, 255, 0.85);
        margin-bottom: 32px;
        position: relative;
        z-index: 1;
    }

    .cta-actions {
        display: flex;
        justify-content: center;
        gap: 16px;
        flex-wrap: wrap;
        position: relative;
        z-index: 1;
    }

    .cta-box .btn-primary {
        background: #fff;
        color: var(--primary);
        border-color: #fff;
    }

    .cta-box .btn-primary:hover {
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
        transform: translateY(-2px);
        background: #f8fafc;
    }

    /* ===== Footer ===== */
    .site-footer {
        background: #0f172a;
        color: #94a3b8;
        padding: 72px 0 0;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
        gap: 48px;
        padding-bottom: 56px;
    }

    .footer-brand .footer-logo {
        font-size: 24px;
        color: #fff;
        font-weight: 800;
        letter-spacing: 1px;
        display: inline-block;
    }

    .footer-brand .footer-logo span {
        color: var(--primary-light);
    }

    .footer-brand p {
        margin-top: 16px;
        max-width: 320px;
        line-height: 1.8;
        font-size: 15px;
        color: #94a3b8;
    }

    .footer-links h4,
    .footer-contact h4 {
        color: #fff;
        font-size: 16px;
        font-weight: 600;
        margin-bottom: 18px;
    }

    .footer-links a {
        display: block;
        color: #94a3b8;
        padding: 6px 0;
        font-size: 15px;
        transition: var(--transition);
    }

    .footer-links a:hover {
        color: #fff;
        padding-left: 6px;
    }

    .footer-contact p {
        font-size: 15px;
        line-height: 1.8;
        margin-bottom: 8px;
        color: #94a3b8;
    }

    .footer-bottom {
        border-top: 1px solid rgba(148, 163, 184, 0.15);
        padding: 20px 0;
    }

    .footer-bottom .container {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 16px;
        flex-wrap: wrap;
    }

    .footer-bottom p {
        font-size: 14px;
        color: #64748b;
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
        .article-grid {
            grid-template-columns: 1fr;
            gap: 40px;
        }

        .article-sidebar {
            position: static;
            flex-direction: row;
            flex-wrap: wrap;
        }

        .sidebar-card {
            flex: 1;
            min-width: 240px;
        }

        .key-grid {
            gap: 16px;
        }

        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }
    }

    @media (max-width: 991px) {
        .header-inner {
            height: 68px;
            justify-content: center;
        }

        .nav-left,
        .nav-right {
            display: none;
        }

        .nav-toggle {
            display: flex;
        }

        .site-logo {
            font-size: 20px;
        }

        .mobile-menu.open {
            display: block;
        }

        .article-hero {
            padding: 64px 0 56px;
        }

        .article-hero h1 {
            font-size: 32px;
        }

        .key-grid {
            grid-template-columns: 1fr;
            max-width: 480px;
            margin: 0 auto;
        }

        .category-grid {
            grid-template-columns: 1fr;
            max-width: 480px;
            margin: 0 auto;
        }

        .cta-box {
            padding: 48px 32px;
        }

        .cta-box h2 {
            font-size: 28px;
        }

        .article-card {
            padding: 32px;
        }
    }

    @media (max-width: 640px) {
        .container {
            padding: 0 16px;
        }

        .site-logo {
            font-size: 18px;
        }

        .breadcrumb-inner {
            font-size: 13px;
        }

        .breadcrumb-inner .current {
            max-width: 180px;
        }

        .article-hero {
            padding: 48px 0 40px;
        }

        .article-hero h1 {
            font-size: 24px;
        }

        .article-meta {
            gap: 12px;
            font-size: 13px;
        }

        .article-body-section {
            padding: 40px 0 56px;
        }

        .article-card {
            padding: 20px;
            border-radius: 14px;
        }

        .article-cover {
            margin-bottom: 24px;
            aspect-ratio: 16 / 10;
        }

        .article-text {
            font-size: 15px;
            line-height: 1.85;
        }

        .article-text h2 {
            font-size: 22px;
            margin: 28px 0 12px;
        }

        .article-text h3 {
            font-size: 18px;
        }

        .key-section,
        .category-section,
        .faq-section,
        .cta-section {
            padding: 52px 0;
        }

        .section-head h2 {
            font-size: 24px;
        }

        .section-head p {
            font-size: 15px;
        }

        .key-card {
            padding: 24px;
        }

        .faq-question {
            padding: 16px 20px;
            font-size: 15px;
        }

        .faq-answer p {
            padding: 0 20px 18px;
            font-size: 14px;
        }

        .cta-box {
            padding: 40px 20px;
            border-radius: 18px;
        }

        .cta-box h2 {
            font-size: 22px;
        }

        .cta-box p {
            font-size: 14px;
            margin-bottom: 24px;
        }

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

        .btn-lg {
            padding: 12px 24px;
            font-size: 15px;
        }

        .footer-grid {
            grid-template-columns: 1fr;
            gap: 32px;
            padding-bottom: 40px;
        }

        .footer-bottom .container {
            flex-direction: column;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
        }
    }

    @media (max-width: 520px) {
        .site-logo {
            font-size: 17px;
        }

        .nav-toggle {
            width: 40px;
            height: 40px;
            right: 12px;
        }

        .article-badge {
            font-size: 12px;
            padding: 4px 12px;
        }

        .article-card {
            padding: 16px;
        }

        .article-tags {
            gap: 8px;
        }

        .tag {
            padding: 4px 12px;
            font-size: 12px;
        }

        .sidebar-card {
            min-width: 100%;
        }
    }

/* roulang page: category2 */
:root {
    --primary: #1a3a6b;
    --primary-dark: #102a4e;
    --primary-light: #2b558f;
    --accent: #d4a537;
    --accent-dark: #b08d2a;
    --bg: #f5f7fa;
    --bg-white: #ffffff;
    --text: #1e293b;
    --text-light: #64748b;
    --border: #e2e8f0;
    --radius: 14px;
    --radius-sm: 8px;
    --shadow-sm: 0 2px 10px rgba(26, 58, 107, 0.06);
    --shadow-md: 0 8px 30px rgba(26, 58, 107, 0.10);
    --shadow-lg: 0 18px 50px rgba(26, 58, 107, 0.14);
    --spacing: 24px;
    --transition: 0.25s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

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

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

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

ul,
ol {
    list-style: none;
}

.container {
    max-width: 1200px;
    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 0 rgba(26, 58, 107, 0.04);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
    gap: 24px;
}

.nav-left,
.nav-right {
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    padding: 9px 18px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
    transition: background var(--transition), color var(--transition);
}

.nav-link:hover {
    background: rgba(26, 58, 107, 0.06);
    color: var(--primary);
}

.nav-link.active {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(26, 58, 107, 0.22);
}

.header-logo {
    display: inline-flex;
    align-items: center;
    font-size: 24px;
    font-weight: 800;
    letter-spacing: 1px;
    color: var(--primary);
    white-space: nowrap;
}

.header-logo span {
    color: var(--accent);
}

.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    border-radius: var(--radius-sm);
    background: rgba(26, 58, 107, 0.06);
    transition: background var(--transition);
}

.menu-toggle:hover {
    background: rgba(26, 58, 107, 0.12);
}

.menu-toggle span {
    width: 20px;
    height: 2px;
    border-radius: 2px;
    background: var(--primary);
    transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle.open span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ===== Page Hero ===== */
.page-hero {
    position: relative;
    background: linear-gradient(135deg, rgba(16, 42, 78, 0.94), rgba(26, 58, 107, 0.86)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    padding: 96px 0 88px;
    color: #fff;
    text-align: center;
}

.page-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 120%, rgba(212, 165, 55, 0.22), transparent 60%);
    pointer-events: none;
}

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

.page-hero .hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 999px;
    padding: 7px 20px;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 1px;
    margin-bottom: 24px;
    backdrop-filter: blur(4px);
}

.page-hero h1 {
    font-size: 44px;
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

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

.page-hero p {
    max-width: 640px;
    margin: 0 auto;
    font-size: 17px;
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.85);
}

.page-hero .hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 36px;
    flex-wrap: wrap;
}

.page-hero .btn-primary {
    background: var(--accent);
    color: var(--primary-dark);
    font-weight: 700;
    padding: 13px 34px;
    border-radius: 999px;
    font-size: 15px;
    box-shadow: 0 6px 24px rgba(212, 165, 55, 0.35);
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.page-hero .btn-primary:hover {
    background: #e0b649;
    transform: translateY(-2px);
    box-shadow: 0 10px 32px rgba(212, 165, 55, 0.42);
}

.page-hero .btn-outline {
    border: 1px solid rgba(255, 255, 255, 0.6);
    color: #fff;
    padding: 12px 34px;
    border-radius: 999px;
    font-size: 15px;
    transition: background var(--transition), border-color var(--transition);
}

.page-hero .btn-outline:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: #fff;
}

/* ===== 通用板块标题 ===== */
.section {
    padding: 88px 0;
}

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

.section-white {
    background: #fff;
}

.section-head {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 52px;
}

.section-head .section-tag {
    display: inline-block;
    background: rgba(26, 58, 107, 0.08);
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 2px;
    padding: 6px 18px;
    border-radius: 999px;
    margin-bottom: 16px;
}

.section-head h2 {
    font-size: 34px;
    font-weight: 800;
    line-height: 1.3;
    color: var(--text);
    margin-bottom: 12px;
}

.section-head h2 span {
    color: var(--primary);
}

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

/* ===== 登录方式 ===== */
.method-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.method-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px 32px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.method-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(26, 58, 107, 0.18);
}

.method-card .method-icon {
    width: 68px;
    height: 68px;
    margin: 0 auto 22px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    box-shadow: 0 8px 22px rgba(26, 58, 107, 0.22);
}

.method-card .method-icon.gold {
    background: linear-gradient(135deg, var(--accent), #e8c55a);
    box-shadow: 0 8px 22px rgba(212, 165, 55, 0.28);
    color: var(--primary-dark);
}

.method-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text);
}

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

.method-card .method-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 18px;
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
    transition: gap var(--transition);
}

.method-card .method-link:hover {
    gap: 10px;
}

/* ===== 登录流程 ===== */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    counter-reset: step;
}

.step-item {
    position: relative;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 34px 24px 28px;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition);
}

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

.step-item .step-num {
    counter-increment: step;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-weight: 700;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    box-shadow: 0 6px 16px rgba(26, 58, 107, 0.22);
}

.step-item .step-num::after {
    content: counter(step);
}

.step-item:nth-child(2) .step-num {
    background: var(--primary-light);
}

.step-item:nth-child(3) .step-num {
    background: var(--accent);
    color: var(--primary-dark);
    box-shadow: 0 6px 16px rgba(212, 165, 55, 0.3);
}

.step-item:nth-child(4) .step-num {
    background: #0f766e;
}

.step-item h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
}

.step-item p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.65;
}

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

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

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

.resource-card .resource-thumb {
    position: relative;
    height: 200px;
    overflow: hidden;
}

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

.resource-card:hover .resource-thumb img {
    transform: scale(1.06);
}

.resource-card .resource-thumb::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(16, 42, 78, 0.35), transparent 50%);
}

.resource-card .resource-body {
    padding: 26px 26px 30px;
}

.resource-card .resource-tag {
    display: inline-block;
    background: rgba(26, 58, 107, 0.08);
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
    padding: 4px 14px;
    border-radius: 999px;
    margin-bottom: 12px;
}

.resource-card h3 {
    font-size: 19px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 10px;
    color: var(--text);
}

.resource-card .resource-body p {
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 16px;
}

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

.resource-card .resource-link:hover {
    gap: 10px;
}

/* ===== FAQ ===== */
.faq-section {
    background: linear-gradient(180deg, #fff 0%, var(--bg) 100%);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.faq-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.faq-item:hover {
    border-color: rgba(26, 58, 107, 0.18);
    box-shadow: var(--shadow-md);
}

.faq-item.open {
    border-color: rgba(26, 58, 107, 0.25);
    box-shadow: var(--shadow-md);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 28px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    text-align: left;
    background: transparent;
    transition: color var(--transition);
}

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

.faq-question .faq-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(26, 58, 107, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    color: var(--primary);
    flex-shrink: 0;
    transition: transform var(--transition), background var(--transition);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.32s ease;
}

.faq-answer-inner {
    padding: 0 28px 24px;
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.75;
    border-top: 1px dashed var(--border);
    margin: 0 28px;
    padding: 18px 0 22px;
}

/* ===== CTA ===== */
.cta-section {
    padding: 0 0 96px;
}

.cta-box {
    position: relative;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius);
    padding: 60px 64px;
    text-align: center;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 50%;
}

.cta-box::after {
    content: '';
    position: absolute;
    bottom: -40%;
    right: -10%;
    width: 260px;
    height: 260px;
    background: rgba(212, 165, 55, 0.1);
    border-radius: 50%;
}

.cta-box h2 {
    position: relative;
    z-index: 2;
    font-size: 30px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 14px;
}

.cta-box p {
    position: relative;
    z-index: 2;
    color: rgba(255, 255, 255, 0.85);
    font-size: 16px;
    max-width: 520px;
    line-height: 1.7;
    margin-bottom: 30px;
}

.cta-box .cta-actions {
    position: relative;
    z-index: 2;
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    justify-content: center;
}

.cta-box .btn-cta {
    background: var(--accent);
    color: var(--primary-dark);
    font-weight: 700;
    padding: 14px 38px;
    border-radius: 999px;
    font-size: 15px;
    box-shadow: 0 8px 24px rgba(212, 165, 55, 0.35);
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.cta-box .btn-cta:hover {
    background: #e0b649;
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(212, 165, 55, 0.42);
}

.cta-box .btn-ghost {
    border: 1px solid rgba(255, 255, 255, 0.5);
    color: #fff;
    padding: 13px 34px;
    border-radius: 999px;
    font-size: 15px;
    transition: background var(--transition), border-color var(--transition);
}

.cta-box .btn-ghost:hover {
    background: rgba(255, 255, 255, 0.14);
    border-color: #fff;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 48px;
}

.footer-brand .footer-logo {
    font-size: 24px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 1px;
    display: inline-block;
    margin-bottom: 16px;
}

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

.footer-brand p {
    font-size: 14px;
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.6);
    max-width: 320px;
}

.footer-links h4 {
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.footer-links a {
    display: block;
    padding: 6px 0;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.65);
    transition: color var(--transition), padding-left var(--transition);
}

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

.footer-contact h4 {
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.footer-contact p {
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 10px;
    color: rgba(255, 255, 255, 0.6);
}

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

.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

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

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .method-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px;
    }
    .resource-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }
    .page-hero h1 {
        font-size: 36px;
    }
    .cta-box {
        padding: 50px 36px;
    }
}

@media (max-width: 768px) {
    .site-header {
        background: var(--bg-white);
    }
    .header-inner {
        height: 64px;
        position: relative;
    }
    .nav-left,
    .nav-right {
        display: none;
    }
    .menu-toggle {
        display: flex;
    }
    .header-logo {
        font-size: 20px;
        margin: 0 auto;
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }
    .menu-toggle {
        margin-left: auto;
        position: relative;
        z-index: 120;
    }
    .nav-left.mobile-open,
    .nav-right.mobile-open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: #fff;
        padding: 16px 24px 24px;
        gap: 4px;
        box-shadow: 0 14px 30px rgba(26, 58, 107, 0.12);
        border-bottom: 1px solid var(--border);
        border-radius: 0 0 var(--radius) var(--radius);
        z-index: 110;
        align-items: stretch;
    }
    .nav-left.mobile-open {
        right: 50%;
    }
    .nav-right.mobile-open {
        left: 50%;
        border-left: none;
    }
    .nav-left.mobile-open .nav-link,
    .nav-right.mobile-open .nav-link {
        padding: 14px 18px;
        border-radius: var(--radius-sm);
    }
    .page-hero {
        padding: 72px 0 64px;
    }
    .page-hero h1 {
        font-size: 30px;
    }
    .page-hero p {
        font-size: 15px;
    }
    .section {
        padding: 64px 0;
    }
    .section-head h2 {
        font-size: 28px;
    }
    .cta-box {
        padding: 44px 28px;
    }
    .cta-box h2 {
        font-size: 24px;
    }
}

@media (max-width: 520px) {
    .container {
        padding: 0 18px;
    }
    .method-grid,
    .steps-grid,
    .resource-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .footer-links a,
    .footer-brand p {
        font-size: 14px;
    }
    .page-hero .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    .page-hero .btn-primary,
    .page-hero .btn-outline {
        width: 100%;
        max-width: 240px;
        text-align: center;
    }
}

/* roulang page: category3 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #122b4d;
            --primary-light: #1d4a7a;
            --primary-lighter: #2b6cb0;
            --accent: #c8a45d;
            --accent-light: #d8b878;
            --accent-dark: #a8873f;
            --bg-page: #f4f6fb;
            --bg-card: #ffffff;
            --bg-deep: #0e1f38;
            --text-main: #1c2a3a;
            --text-weak: #5e7182;
            --text-muted: #8a9aa8;
            --border-light: #e4e9f0;
            --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.1);
            --radius: 14px;
            --radius-lg: 20px;
            --radius-sm: 8px;
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

        /* ===== 通用组件 ===== */
        .section {
            padding: 96px 0;
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 60px;
        }

        .section-head .tag-line {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 2px;
            color: var(--accent-dark);
            background: rgba(200, 164, 93, 0.12);
            padding: 6px 18px;
            border-radius: 30px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .section-head h2 {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--primary);
            margin-bottom: 16px;
        }

        .section-head .section-sub {
            font-size: 17px;
            color: var(--text-weak);
            line-height: 1.8;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 32px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: 2px solid transparent;
            text-align: center;
            white-space: nowrap;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(200, 164, 93, 0.35);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(200, 164, 93, 0.45);
        }

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

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            transform: translateY(-3px);
        }

        .btn-primary {
            background: var(--primary-light);
            color: #fff;
            box-shadow: 0 4px 16px rgba(29, 74, 122, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(18, 43, 77, 0.35);
        }

        /* ===== Header 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.03);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            height: 78px;
            position: relative;
        }

        .header-logo {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 1px;
            white-space: nowrap;
        }

        .header-logo span {
            color: var(--accent);
            font-weight: 700;
        }

        .header-logo .logo-mark {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #fff;
            font-weight: 700;
        }

        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-link {
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            border-radius: 30px;
            transition: var(--transition);
            position: relative;
        }

        .nav-link:hover {
            color: var(--primary-light);
            background: rgba(43, 108, 176, 0.08);
        }

        .nav-link.active {
            color: #fff;
            background: var(--primary-light);
            box-shadow: 0 4px 12px rgba(29, 74, 122, 0.25);
        }

        .mobile-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--bg-page);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            transition: var(--transition);
        }

        .mobile-toggle:hover {
            background: var(--border-light);
        }

        .mobile-toggle span {
            width: 20px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* ===== Hero 首屏 ===== */
        .security-hero {
            position: relative;
            padding: 140px 0 110px;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            color: #fff;
            text-align: center;
            overflow: hidden;
        }

        .security-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(12, 28, 52, 0.92), rgba(18, 43, 77, 0.78), rgba(29, 74, 122, 0.65));
            z-index: 1;
        }

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

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 8px 22px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.22);
            border-radius: 50px;
            font-size: 14px;
            letter-spacing: 1.5px;
            margin-bottom: 28px;
            backdrop-filter: blur(6px);
        }

        .hero-tag .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #4ade80;
            box-shadow: 0 0 12px rgba(74, 222, 128, 0.8);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.6;
                transform: scale(0.8);
            }
        }

        .security-hero h1 {
            font-size: 56px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 24px;
            letter-spacing: 2px;
        }

        .security-hero h1 .highlight {
            color: var(--accent-light);
            position: relative;
        }

        .security-hero .hero-desc {
            max-width: 680px;
            margin: 0 auto 40px;
            font-size: 18px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.85);
            font-weight: 300;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 50px;
        }

        .hero-metrics {
            display: flex;
            justify-content: center;
            gap: 48px;
            flex-wrap: wrap;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 44px;
        }

        .hero-metric {
            text-align: center;
        }

        .hero-metric .num {
            font-size: 40px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .hero-metric .num em {
            font-style: normal;
            color: var(--accent-light);
        }

        .hero-metric .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }

        /* ===== 安全服务卡片 ===== */
        .services-section {
            background: var(--bg-page);
            position: relative;
        }

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

        .service-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 36px 28px 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            opacity: 0;
            transition: var(--transition);
        }

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

        .service-card:hover::after {
            opacity: 1;
        }

        .service-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--primary-lighter), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: #fff;
            margin-bottom: 20px;
            box-shadow: 0 8px 20px rgba(29, 74, 122, 0.25);
        }

        .service-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }

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

        /* ===== 数据统计 ===== */
        .stats-section {
            background: var(--bg-deep);
            padding: 90px 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            background-color: rgba(14, 31, 56, 0.9);
            position: relative;
            color: #fff;
            text-align: center;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(14, 31, 56, 0.82);
        }

        .stats-section .container {
            position: relative;
            z-index: 1;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 48px;
        }

        .stat-item {
            padding: 24px 16px;
            border-radius: var(--radius);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
        }

        .stat-item .stat-num {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--accent-light);
        }

        .stat-item .stat-num small {
            font-size: 24px;
            font-weight: 600;
            margin-left: 2px;
        }

        .stat-item .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 8px;
            letter-spacing: 1px;
        }

        /* ===== 操作流程 ===== */
        .process-section {
            background: #fff;
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            counter-reset: step;
            position: relative;
        }

        .process-grid::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 8%;
            right: 8%;
            height: 2px;
            background: linear-gradient(90deg, var(--border-light), var(--accent), var(--border-light));
            z-index: 0;
        }

        .step-card {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 0 12px;
        }

        .step-num {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: var(--primary-light);
            color: #fff;
            font-size: 28px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 24px;
            box-shadow: 0 8px 24px rgba(29, 74, 122, 0.28);
            border: 4px solid #fff;
            transition: var(--transition);
        }

        .step-card:hover .step-num {
            background: var(--accent);
            transform: scale(1.05);
            box-shadow: 0 10px 30px rgba(200, 164, 93, 0.35);
        }

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

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

        /* ===== 图文安全体系 ===== */
        .system-section {
            background: var(--bg-page);
        }

        .system-layout {
            display: grid;
            grid-template-columns: 1.05fr 1fr;
            gap: 64px;
            align-items: center;
        }

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

        .system-image img {
            width: 100%;
            height: 440px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .system-image:hover img {
            transform: scale(1.03);
        }

        .system-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(18, 43, 77, 0.35));
            pointer-events: none;
        }

        .system-content h2 {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .system-content .lead-text {
            font-size: 18px;
            line-height: 1.85;
            color: var(--text-weak);
            margin-bottom: 28px;
        }

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

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 16px 20px;
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border-left: 4px solid var(--accent);
            transition: var(--transition);
        }

        .feature-list li:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }

        .feature-list .check-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(74, 222, 128, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: #16a34a;
            font-weight: 700;
            margin-top: 2px;
        }

        .feature-list .feature-text {
            font-size: 15px;
            color: var(--text-main);
            line-height: 1.6;
        }

        .feature-list .feature-text strong {
            color: var(--primary);
            display: block;
            margin-bottom: 2px;
        }

        /* ===== 通知公告列表 ===== */
        .notice-section {
            background: #fff;
        }

        .notice-layout {
            display: grid;
            grid-template-columns: 1.3fr 1fr;
            gap: 60px;
            align-items: start;
        }

        .notice-main {
            background: var(--bg-page);
            border-radius: var(--radius-lg);
            padding: 40px;
            border: 1px solid var(--border-light);
        }

        .notice-main h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

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

        .notice-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 18px 20px;
            border-radius: var(--radius);
            background: #fff;
            margin-bottom: 14px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            cursor: pointer;
        }

        .notice-item:hover {
            transform: translateX(6px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }

        .notice-item .notice-date {
            flex-shrink: 0;
            text-align: center;
            background: var(--primary-light);
            color: #fff;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 600;
            line-height: 1.3;
        }

        .notice-item .notice-date small {
            display: block;
            font-size: 11px;
            opacity: 0.8;
            font-weight: 400;
        }

        .notice-item .notice-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.5;
            flex: 1;
        }

        .notice-item .notice-arrow {
            color: var(--accent);
            font-size: 18px;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .notice-item:hover .notice-arrow {
            transform: translateX(4px);
        }

        .security-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .sidebar-card {
            background: var(--bg-page);
            border-radius: var(--radius-lg);
            padding: 30px;
            border: 1px solid var(--border-light);
        }

        .sidebar-card h4 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--accent);
            display: inline-block;
        }

        .sidebar-card p {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .quick-tips {
            display: grid;
            gap: 12px;
        }

        .quick-tip {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            color: var(--text-main);
            background: #fff;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .quick-tip:hover {
            background: rgba(200, 164, 93, 0.08);
            border-color: var(--accent);
        }

        .quick-tip .tip-icon {
            color: var(--accent);
            font-size: 16px;
        }

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

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(200, 164, 93, 0.4);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 24px 28px;
            cursor: pointer;
            font-size: 17px;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(200, 164, 93, 0.15);
            color: var(--accent-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 600;
            transition: var(--transition);
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
            color: #fff;
        }

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

        .faq-answer-inner {
            padding: 0 28px 24px;
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.8;
            border-top: 1px solid var(--border-light);
            padding-top: 18px;
            margin: 0 28px 24px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 100px 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            text-align: center;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(18, 43, 77, 0.95), rgba(29, 74, 122, 0.85));
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 40px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }

        .cta-section p {
            max-width: 600px;
            margin: 0 auto 36px;
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
        }

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

        /* ===== Footer ===== */
        .site-footer {
            background: #0d1b2e;
            color: #a3b3c4;
            padding: 70px 0 0;
            position: relative;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
            gap: 48px;
            padding-bottom: 50px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-logo {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }

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

        .footer-brand p {
            font-size: 14px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-links h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

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

        .footer-links a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            padding: 6px 0;
            transition: var(--transition);
        }

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

        .footer-contact p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 10px;
        }

        .footer-bottom {
            padding: 22px 0;
            background: rgba(0, 0, 0, 0.2);
        }

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

        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

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

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }

            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 40px;
            }

            .process-grid::before {
                display: none;
            }

            .system-layout {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .system-image img {
                height: 320px;
            }

            .notice-layout {
                grid-template-columns: 1fr;
                gap: 40px;
            }

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

            .security-hero h1 {
                font-size: 44px;
            }

            .header-logo {
                position: static;
                transform: none;
            }

            .header-inner {
                justify-content: space-between;
                flex-wrap: wrap;
            }

            .nav-left,
            .nav-right {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #fff;
                padding: 16px 0;
                position: absolute;
                top: 78px;
                left: 0;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md);
                gap: 4px;
            }

            .nav-left.open,
            .nav-right.open {
                display: flex;
            }

            .nav-link {
                display: block;
                text-align: center;
                width: 100%;
                border-radius: 0;
                padding: 12px 24px;
                border-left: 3px solid transparent;
            }

            .nav-link.active {
                background: rgba(29, 74, 122, 0.08);
                color: var(--primary-light);
                box-shadow: none;
                border-left-color: var(--accent);
            }

            .mobile-toggle {
                display: flex;
            }

            .header-logo {
                margin-right: auto;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }

            .section-head h2 {
                font-size: 32px;
            }

            .security-hero {
                padding: 100px 0 80px;
            }

            .security-hero h1 {
                font-size: 34px;
            }

            .security-hero .hero-desc {
                font-size: 16px;
            }

            .hero-metrics {
                gap: 24px;
            }

            .hero-metric .num {
                font-size: 32px;
            }

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

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

            .stat-item .stat-num {
                font-size: 40px;
            }

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

            .notice-main {
                padding: 24px;
            }

            .notice-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

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

            .cta-section h2 {
                font-size: 32px;
            }

            .system-content h2 {
                font-size: 30px;
            }
        }

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

            .section {
                padding: 52px 0;
            }

            .security-hero h1 {
                font-size: 28px;
            }

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

            .btn {
                width: 100%;
            }

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

            .hero-metrics {
                flex-direction: column;
                gap: 20px;
            }

            .footer-bottom .container {
                flex-direction: column;
                text-align: center;
            }

            .cta-actions {
                flex-direction: column;
                align-items: center;
            }

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

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

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