/* roulang page: index */
:root {
  --primary: #17233b;
  --primary-light: #223457;
  --primary-soft: #eef1f7;
  --accent: #c9a14c;
  --accent-light: #e3c67f;
  --accent-soft: #faf6ec;
  --bg: #f6f7fb;
  --bg-white: #ffffff;
  --text: #151a26;
  --text-muted: #5e6a82;
  --text-faint: #93a0b4;
  --border: #e4e8f0;
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(20, 28, 48, 0.06);
  --shadow-md: 0 10px 32px rgba(20, 28, 48, 0.08);
  --shadow-lg: 0 18px 48px rgba(20, 28, 48, 0.14);
  --spacer: 88px;
  --spacer-md: 56px;
  --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", 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); background: var(--bg); color: var(--text); line-height: 1.7; font-size: 16px; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s ease, opacity .2s ease; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
ul, ol { list-style: none; }
input, textarea { font-family: inherit; }
.container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 28px; }
::selection { background: rgba(201, 161, 76, .3); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 30px; border-radius: 999px; font-size: 15px; font-weight: 600;
  line-height: 1.2; border: 1px solid transparent; transition: all .25s ease; letter-spacing: .02em;
  outline-offset: 3px;
}
.btn:focus-visible { outline: 3px solid rgba(201, 161, 76, .45); }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 8px 20px rgba(23, 35, 59, .22); }
.btn-primary:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: 0 12px 26px rgba(23, 35, 59, .3); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 4px 12px rgba(23, 35, 59, .18); }
.btn-accent { background: var(--accent); color: #fff; box-shadow: 0 8px 22px rgba(201, 161, 76, .3); }
.btn-accent:hover { background: #b8923f; transform: translateY(-2px); box-shadow: 0 12px 28px rgba(201, 161, 76, .38); }
.btn-accent:active { transform: translateY(0); }
.btn-outline { border-color: rgba(255, 255, 255, .55); color: #fff; backdrop-filter: blur(6px); background: rgba(255, 255, 255, .08); }
.btn-outline:hover { background: rgba(255, 255, 255, .16); border-color: #fff; transform: translateY(-2px); }
.btn-dark-outline { border-color: var(--border); color: var(--text); background: #fff; }
.btn-dark-outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-sm); }

/* Header / Nav */
.site-header {
  position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.92);
  backdrop-filter: blur(16px); border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between; height: 74px; gap: 32px;
}
.logo { display: flex; align-items: center; gap: 10px; font-size: 21px; font-weight: 800; color: var(--primary); letter-spacing: .01em; }
.logo-icon {
  width: 38px; height: 38px; border-radius: 10px; background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 60%);
  display: flex; align-items: center; justify-content: center; color: var(--accent); font-size: 20px; font-weight: 900;
  box-shadow: 0 4px 12px rgba(23,35,59,.2); flex-shrink: 0;
}
.main-nav { display: flex; align-items: center; gap: 8px; }
.main-nav a {
  padding: 9px 18px; border-radius: 999px; font-size: 15px; font-weight: 500; color: var(--text-muted);
  transition: all .2s ease; white-space: nowrap;
}
.main-nav a:hover { color: var(--primary); background: var(--primary-soft); }
.main-nav a.active { color: var(--primary); background: var(--primary-soft); font-weight: 600; box-shadow: inset 0 0 0 1px rgba(23,35,59,.08); }
.nav-cta { margin-left: 8px; }
.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 10px; background: var(--primary-soft); align-items: center; justify-content: center; font-size: 20px; color: var(--primary); }
.nav-toggle:hover { background: var(--border); }
.nav-toggle:focus-visible { outline: 3px solid rgba(23,35,59,.35); }

/* Hero */
.hero {
  position: relative; background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  padding: 130px 0 140px; color: #fff; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0; background: linear-gradient(105deg, rgba(18,26,43,.88) 15%, rgba(18,26,43,.55) 55%, rgba(18,26,43,.25) 100%);
}
.hero-content { position: relative; max-width: 680px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 7px 18px; border-radius: 999px;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.25); font-size: 14px;
  font-weight: 500; color: #f0e9d6; backdrop-filter: blur(8px); margin-bottom: 24px;
}
.hero-badge i { color: var(--accent-light); }
.hero h1 { font-size: 54px; line-height: 1.15; font-weight: 800; letter-spacing: .02em; margin-bottom: 18px; }
.hero h1 span { color: var(--accent-light); }
.hero p { font-size: 18px; color: rgba(255,255,255,.88); line-height: 1.8; margin-bottom: 36px; max-width: 560px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 34px; margin-top: 56px; flex-wrap: wrap; }
.stat-item { display: flex; flex-direction: column; gap: 2px; }
.stat-value { font-size: 28px; font-weight: 800; color: #fff; line-height: 1.2; }
.stat-label { font-size: 13px; color: rgba(255,255,255,.7); }

/* Sections */
.section { padding: var(--spacer) 0; }
.section-alt { background: var(--bg-white); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { text-align: center; max-width: 660px; margin: 0 auto 52px; }
.section-eyebrow {
  display: inline-block; padding: 5px 14px; border-radius: 999px; background: var(--accent-soft);
  color: #a88735; font-size: 13px; font-weight: 600; letter-spacing: .04em; margin-bottom: 14px;
}
.section-title { font-size: 36px; font-weight: 800; line-height: 1.25; letter-spacing: -.01em; color: var(--primary); margin-bottom: 14px; }
.section-subtitle { font-size: 16px; color: var(--text-muted); line-height: 1.75; }
.section-line { width: 48px; height: 3px; border-radius: 3px; background: var(--accent); margin: 20px auto 0; }

/* Feature Cards */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card {
  background: var(--bg-white); border-radius: var(--radius-lg); padding: 36px 30px;
  border: 1px solid var(--border); transition: all .3s ease; position: relative; overflow: hidden;
}
.feature-card::after {
  content: ''; position: absolute; left: 0; top: 0; width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light)); opacity: 0; transition: opacity .3s;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.feature-card:hover::after { opacity: 1; }
.feature-icon {
  width: 58px; height: 58px; border-radius: 16px; background: var(--primary-soft); color: var(--primary);
  display: flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 22px;
  transition: all .3s ease;
}
.feature-card:hover .feature-icon { background: var(--primary); color: var(--accent-light); }
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: var(--text); }
.feature-card p { font-size: 14px; color: var(--text-muted); line-height: 1.75; }

/* Category Cards */
.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.category-card {
  position: relative; border-radius: var(--radius-lg); overflow: hidden; min-height: 300px;
  display: flex; align-items: flex-end; box-shadow: var(--shadow-sm); transition: all .35s ease;
}
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.category-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; z-index: 0; }
.category-card:hover img { transform: scale(1.05); }
.category-card::after {
  content: ''; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, transparent 30%, rgba(15,22,38,.78) 100%);
}
.category-card-content { position: relative; z-index: 2; padding: 28px 26px; color: #fff; width: 100%; }
.category-card-content .card-tag {
  display: inline-block; font-size: 12px; padding: 3px 10px; border-radius: 999px;
  background: rgba(255,255,255,.18); border: 1px solid rgba(255,255,255,.25); backdrop-filter: blur(6px);
  margin-bottom: 12px;
}
.category-card-content h3 { font-size: 21px; font-weight: 700; margin-bottom: 6px; }
.category-card-content p { font-size: 13px; color: rgba(255,255,255,.85); line-height: 1.6; }
.category-card-link { display: inline-block; margin-top: 14px; font-size: 14px; font-weight: 600; color: var(--accent-light); }

/* News / CMS List */
.news-wrap {
  display: grid; grid-template-columns: 1fr 340px; gap: 36px; align-items: start;
}
.news-list { background: var(--bg-white); border-radius: var(--radius-lg); border: 1px solid var(--border); overflow: hidden; }
.news-item {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 24px 28px; border-bottom: 1px solid var(--border); transition: background .2s;
}
.news-item:last-child { border-bottom: none; }
.news-item:hover { background: var(--primary-soft); }
.news-content { flex: 1; min-width: 0; }
.news-content h3 {
  font-size: 17px; font-weight: 700; color: var(--text); line-height: 1.5; margin-bottom: 6px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.news-content h3:hover { color: var(--primary); }
.news-content p { font-size: 14px; color: var(--text-muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { display: flex; flex-direction: column; align-items: flex-end; gap: 8px; flex-shrink: 0; }
.badge {
  display: inline-block; padding: 4px 12px; border-radius: 999px; font-size: 12px; font-weight: 600;
  background: var(--accent-soft); color: #a88735; border: 1px solid rgba(201,161,76,.2);
}
.badge-type { background: var(--primary-soft); color: var(--primary); border-color: rgba(23,35,59,.08); }
.news-date { font-size: 13px; color: var(--text-faint); white-space: nowrap; }
.news-sidebar { display: flex; flex-direction: column; gap: 20px; }
.side-card {
  background: var(--bg-white); border-radius: var(--radius-lg); border: 1px solid var(--border); padding: 26px;
}
.side-card h4 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.side-list li { display: flex; align-items: center; gap: 10px; padding: 10px 0; border-bottom: 1px dashed var(--border); font-size: 14px; color: var(--text-muted); }
.side-list li:last-child { border-bottom: none; }
.side-list li i { color: var(--accent); font-size: 12px; }
.side-list li:hover { color: var(--primary); }
.side-faq-link { display: block; background: var(--accent-soft); border-radius: var(--radius-md); padding: 12px 16px; font-size: 14px; color: var(--text); margin-bottom: 10px; transition: all .2s; }
.side-faq-link:hover { background: var(--accent-light); color: #fff; }
.side-faq-link:last-child { margin-bottom: 0; }

/* Steps / Process */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.step-card { text-align: center; padding: 30px 20px; position: relative; }
.step-number {
  width: 58px; height: 58px; border-radius: 50%; background: var(--primary); color: var(--accent-light);
  font-size: 20px; font-weight: 800; display: flex; align-items: center; justify-content: center; margin: 0 auto 18px;
  box-shadow: 0 8px 24px rgba(23,35,59,.25); transition: transform .3s;
}
.step-card:hover .step-number { transform: scale(1.08); }
.step-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.step-card p { font-size: 14px; color: var(--text-muted); line-height: 1.6; }

/* Featured Highlight */
.featured-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.featured-card {
  display: grid; grid-template-columns: 220px 1fr; gap: 0; background: var(--bg-white);
  border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border);
  transition: all .3s ease; min-height: 200px;
}
.featured-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.featured-thumb { position: relative; overflow: hidden; }
.featured-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.featured-card:hover .featured-thumb img { transform: scale(1.05); }
.featured-body { padding: 26px 26px; display: flex; flex-direction: column; justify-content: center; gap: 8px; }
.featured-body .featured-tag { align-self: flex-start; }
.featured-body h3 { font-size: 18px; font-weight: 700; line-height: 1.5; color: var(--text); }
.featured-body p { font-size: 14px; color: var(--text-muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.featured-body .featured-more { font-size: 14px; font-weight: 600; color: var(--accent); margin-top: 6px; }

/* FAQ */
.faq-list { max-width: 780px; margin: 0 auto; }
.faq-item {
  background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-md);
  padding: 24px 28px; margin-bottom: 14px; transition: all .25s ease;
}
.faq-item:hover { box-shadow: var(--shadow-sm); border-color: rgba(201,161,76,.4); }
.faq-item h3 { font-size: 17px; font-weight: 700; color: var(--text); display: flex; align-items: center; gap: 12px; }
.faq-item h3 i { color: var(--accent); font-size: 15px; }
.faq-item p { font-size: 14px; color: var(--text-muted); margin: 12px 0 0 34px; line-height: 1.75; }

/* CTA */
.cta-section {
  background: var(--primary); color: #fff; border-radius: var(--radius-lg); padding: 70px 60px;
  display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap;
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover; background-position: center; position: relative; overflow: hidden;
}
.cta-section::before { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(23,35,59,.92), rgba(23,35,59,.7)); }
.cta-content { position: relative; z-index: 1; max-width: 560px; }
.cta-content h2 { font-size: 32px; font-weight: 800; line-height: 1.3; margin-bottom: 12px; }
.cta-content p { color: rgba(255,255,255,.85); font-size: 15px; }
.cta-actions { position: relative; z-index: 1; display: flex; gap: 14px; flex-wrap: wrap; }

/* Footer */
.site-footer {
  background: #101826; color: rgba(255,255,255,.7); padding: 60px 0 30px; margin-top: 0;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.08); }
.footer-brand .logo-footer { font-size: 22px; font-weight: 800; color: #fff; display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,.55); max-width: 280px; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 20px; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a { font-size: 14px; color: rgba(255,255,255,.55); transition: color .2s, padding-left .2s; }
.footer-col ul li a:hover { color: var(--accent-light); padding-left: 6px; }
.footer-contact { display: flex; flex-direction: column; gap: 12px; }
.footer-contact li { display: flex; gap: 10px; font-size: 14px; color: rgba(255,255,255,.55); align-items: flex-start; }
.footer-contact li i { color: var(--accent); margin-top: 4px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 28px; gap: 20px; flex-wrap: wrap; }
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,.4); }
.footer-bottom .footer-domain { color: rgba(255,255,255,.6); }

/* Mobile Nav */
@media (max-width: 1024px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .news-wrap { grid-template-columns: 1fr; }
  .featured-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .section { padding: 56px 0; }
  .section-title { font-size: 28px; }
  .hero { padding: 90px 0 100px; }
  .hero h1 { font-size: 36px; }
  .hero p { font-size: 16px; }
  .nav-toggle { display: flex; }
  .main-nav {
    position: absolute; top: 74px; left: 0; right: 0; background: #fff;
    flex-direction: column; align-items: flex-start; padding: 16px 20px 24px;
    border-bottom: 1px solid var(--border); box-shadow: var(--shadow-md);
    gap: 4px; display: none; z-index: 100;
  }
  .main-nav.open { display: flex; }
  .main-nav a { width: 100%; padding: 12px 16px; border-radius: 10px; }
  .nav-cta { width: 100%; margin-left: 0; margin-top: 6px; }
  .nav-cta .btn { width: 100%; }
  .cta-section { padding: 44px 28px; }
  .cta-content h2 { font-size: 26px; }
}
@media (max-width: 520px) {
  .feature-grid, .category-grid, .steps-grid { grid-template-columns: 1fr; }
  .featured-card { grid-template-columns: 1fr; }
  .featured-thumb { height: 180px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-actions .btn { width: 100%; }
  .news-item { flex-direction: column; align-items: flex-start; gap: 12px; }
  .news-meta { flex-direction: row; align-items: center; width: 100%; justify-content: space-between; }
  .section-head { margin-bottom: 34px; }
  .stat-value { font-size: 22px; }
  .hero-stats { gap: 24px; }
}

/* roulang page: category1 */
:root {
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --primary-light: #818cf8;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --bg: #f8fafc;
  --card-bg: #ffffff;
  --text: #0f172a;
  --text-weak: #64748b;
  --text-light: #94a3b8;
  --border: #e2e8f0;
  --radius-lg: 22px;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(15, 23, 42, .06);
  --shadow-lg: 0 14px 44px rgba(15, 23, 42, .13);
  --shadow-accent: 0 10px 28px rgba(245, 158, 11, .28);
  --header-height: 76px;
  --container: 1200px;
  --transition: all .3s ease;
  --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);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img {
  max-width: 100%;
  display: block;
  border: 0;
}

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

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

input,
textarea,
select {
  font-family: inherit;
  font-size: 14px;
}

ul,
ol {
  list-style: none;
}

:focus-visible {
  outline: 3px solid rgba(79, 70, 229, .42);
  outline-offset: 2px;
  border-radius: 6px;
}

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

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.4;
  border: 2px solid transparent;
  transition: var(--transition);
  cursor: pointer;
  white-space: nowrap;
  letter-spacing: .3px;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0) scale(.98);
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: var(--shadow-lg);
}

.btn-accent {
  background: var(--accent);
  color: #0f172a;
}

.btn-accent:hover {
  background: var(--accent-dark);
  color: #fff;
  box-shadow: var(--shadow-accent);
}

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

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow-lg);
}

.btn-outline-light {
  background: transparent;
  border-color: rgba(255, 255, 255, .72);
  color: #fff;
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, .14);
  border-color: #fff;
  color: #fff;
}

.btn-lg {
  padding: 15px 36px;
  font-size: 16px;
}

/* ===== 标签 / 徽章 ===== */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(79, 70, 229, .08);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 999px;
  letter-spacing: .6px;
}

.section-tag i {
  font-size: 14px;
}

.card-tag {
  display: inline-flex;
  align-items: center;
  background: rgba(79, 70, 229, .08);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
}

/* ===== 头部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  height: var(--header-height);
}

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

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: .5px;
  flex-shrink: 0;
}

.logo-icon {
  width: 42px;
  height: 42px;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  box-shadow: 0 6px 16px rgba(79, 70, 229, .28);
}

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

.main-nav a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-weak);
  line-height: 1.2;
  transition: var(--transition);
}

.main-nav a:hover {
  background: rgba(79, 70, 229, .06);
  color: var(--primary);
}

.main-nav a.active {
  background: rgba(79, 70, 229, .1);
  color: var(--primary);
  font-weight: 600;
}

.main-nav .nav-cta {
  padding: 0;
  margin-left: 8px;
}

.main-nav .nav-cta:hover {
  background: transparent;
}

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

.nav-toggle:hover {
  background: #f1f5f9;
}

.nav-toggle.is-open i::before {
  content: "\f00d";
}

/* ===== 页面横幅 ===== */
.page-hero {
  position: relative;
  padding: 128px 0 116px;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  color: #fff;
  overflow: hidden;
}

.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(118deg, rgba(15, 23, 42, .92) 0%, rgba(30, 27, 75, .78) 48%, rgba(79, 70, 229, .55) 100%);
  z-index: 1;
}

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

.page-hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .14);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, .25);
  color: #fff;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
}

.page-hero h1 {
  font-size: 46px;
  line-height: 1.16;
  margin: 22px 0 16px;
  font-weight: 800;
  letter-spacing: -1.5px;
}

.page-hero h1 span {
  color: #fbbf24;
}

.page-hero p {
  font-size: 17px;
  color: rgba(255, 255, 255, .86);
  max-width: 600px;
  line-height: 1.8;
  margin-bottom: 30px;
}

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

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

.section-head {
  text-align: center;
  max-width: 660px;
  margin: 0 auto 52px;
}

.section-head h2 {
  font-size: 34px;
  line-height: 1.25;
  margin-top: 16px;
  letter-spacing: -1px;
  font-weight: 800;
}

.section-head p {
  color: var(--text-weak);
  font-size: 16px;
  margin-top: 12px;
}

/* ===== 栏目介绍 ===== */
.intro-section {
  background: var(--bg);
}

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

.intro-content h2 {
  font-size: 34px;
  line-height: 1.25;
  margin: 16px 0 18px;
  letter-spacing: -1px;
  font-weight: 800;
}

.intro-content > p {
  color: var(--text-weak);
  font-size: 16px;
  line-height: 1.85;
  margin-bottom: 26px;
}

.check-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 32px;
}

.check-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  font-weight: 500;
}

.check-list i {
  color: var(--primary);
  font-size: 18px;
  flex-shrink: 0;
}

.intro-media {
  position: relative;
}

.intro-media img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.intro-media::after {
  content: "";
  position: absolute;
  inset: 18px -18px -18px 18px;
  border: 2px solid rgba(79, 70, 229, .2);
  border-radius: var(--radius-lg);
  z-index: -1;
}

.intro-media-badge {
  position: absolute;
  bottom: 28px;
  left: -22px;
  background: #fff;
  border-radius: 14px;
  padding: 14px 20px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 14px;
  color: var(--text);
}

.intro-media-badge i {
  color: var(--accent);
  font-size: 20px;
}

/* ===== 步骤流程 ===== */
.steps-section {
  background: #fff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

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

.step-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  position: relative;
  transition: var(--transition);
}

.step-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 26px;
  right: 26px;
  height: 3px;
  border-radius: 0 0 4px 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  opacity: 0;
  transition: var(--transition);
}

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

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

.step-num {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 17px;
  margin-bottom: 18px;
  box-shadow: 0 8px 18px rgba(79, 70, 229, .28);
}

.step-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: .2px;
}

.step-card p {
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.75;
}

/* ===== 指南卡片 ===== */
.cards-section {
  background: var(--bg);
}

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

.guide-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
}

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

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

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .55s ease;
}

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

.card-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 62%, rgba(15, 23, 42, .34));
}

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

.card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.card-time {
  color: var(--text-light);
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.card-body h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: .2px;
}

.card-body p {
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.75;
  margin-bottom: 18px;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
}

.card-link i {
  transition: transform .3s ease;
}

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

/* ===== 数据统计 ===== */
.stats-section {
  background: linear-gradient(135deg, rgba(15, 23, 42, .95), rgba(30, 27, 75, .92)), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  color: #fff;
}

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

.stat-item {
  text-align: center;
  padding: 36px 22px;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--radius);
  backdrop-filter: blur(6px);
  transition: var(--transition);
}

.stat-item:hover {
  background: rgba(255, 255, 255, .13);
  transform: translateY(-4px);
}

.stat-num {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.1;
  color: #fbbf24;
  letter-spacing: -1px;
}

.stat-num i {
  font-style: normal;
  font-size: 18px;
  margin-left: 4px;
  color: rgba(255, 255, 255, .7);
}

.stat-label {
  display: block;
  margin-top: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, .78);
}

/* ===== FAQ ===== */
.faq-section {
  background: #fff;
}

.faq-layout {
  display: grid;
  grid-template-columns: .75fr 1.25fr;
  gap: 56px;
  align-items: start;
}

.faq-head {
  position: sticky;
  top: calc(var(--header-height) + 32px);
}

.faq-head h2 {
  font-size: 32px;
  line-height: 1.25;
  margin: 16px 0 14px;
  letter-spacing: -1px;
  font-weight: 800;
}

.faq-head p {
  color: var(--text-weak);
  margin-bottom: 26px;
  line-height: 1.8;
}

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

.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0 24px;
  transition: var(--transition);
}

.faq-item.active {
  background: #fff;
  border-color: rgba(79, 70, 229, .3);
  box-shadow: var(--shadow);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 20px 0;
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
}

.faq-icon {
  color: var(--primary);
  font-size: 15px;
  flex-shrink: 0;
  transition: transform .35s ease;
}

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

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

.faq-answer p {
  padding: 0 0 22px;
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.85;
}

/* ===== CTA ===== */
.cta-section {
  padding: 88px 0;
  background: var(--bg);
}

.cta-box {
  position: relative;
  background: linear-gradient(135deg, var(--primary), #7c3aed 55%, var(--primary-light));
  border-radius: 30px;
  padding: 68px 56px;
  text-align: center;
  color: #fff;
  overflow: hidden;
  box-shadow: 0 18px 50px rgba(79, 70, 229, .3);
}

.cta-box::before {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 40px solid rgba(255, 255, 255, .08);
  top: -100px;
  right: -80px;
}

.cta-box::after {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .06);
  bottom: -70px;
  left: 40px;
}

.cta-box h2 {
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -1px;
  position: relative;
  z-index: 1;
}

.cta-box p {
  font-size: 16px;
  color: rgba(255, 255, 255, .85);
  margin: 14px 0 30px;
  position: relative;
  z-index: 1;
}

.cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* ===== 页脚 ===== */
.site-footer {
  background: #0b1120;
  color: #94a3b8;
  padding: 82px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 58px;
  border-bottom: 1px solid rgba(255, 255, 255, .09);
}

.logo-footer {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .4px;
}

.logo-footer .logo-icon {
  width: 40px;
  height: 40px;
  font-size: 16px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  box-shadow: 0 4px 14px rgba(79, 70, 229, .38);
}

.footer-brand p {
  margin-top: 18px;
  color: #7c8aa0;
  font-size: 14px;
  line-height: 1.8;
  max-width: 300px;
}

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul a {
  color: #94a3b8;
  font-size: 14px;
  transition: var(--transition);
}

.footer-col ul a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: #94a3b8;
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding: 24px 0;
  color: #64748b;
  font-size: 13px;
}

.footer-bottom p {
  margin: 0;
}

.footer-domain {
  color: #5b6b83;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .intro-grid {
    gap: 44px;
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

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

@media (max-width: 992px) {
  .nav-toggle {
    display: inline-flex;
  }

  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 14px;
    right: 14px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: 0 20px 44px rgba(15, 23, 42, .16);
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    gap: 4px;
    display: none;
    z-index: 999;
  }

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

  .main-nav a {
    padding: 13px 18px;
    border-radius: 10px;
    font-size: 16px;
  }

  .main-nav .nav-cta {
    margin-left: 0;
    margin-top: 6px;
    padding-top: 4px;
    border-top: 1px solid var(--border);
  }

  .main-nav .nav-cta .btn {
    width: 100%;
    justify-content: center;
  }

  .page-hero {
    padding: 108px 0 96px;
  }

  .page-hero h1 {
    font-size: 38px;
  }

  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

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

  .faq-head {
    position: static;
  }

  .cta-box {
    padding: 52px 32px;
  }
}

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

  .section-head h2 {
    font-size: 28px;
  }

  .intro-grid {
    grid-template-columns: 1fr;
    gap: 52px;
  }

  .intro-media-badge {
    left: 12px;
    bottom: 18px;
  }

  .intro-media::after {
    display: none;
  }

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

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

  .stat-item {
    padding: 26px 14px;
  }

  .stat-num {
    font-size: 34px;
  }

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

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

  .cta-box {
    padding: 44px 24px;
    border-radius: 22px;
  }

  .cta-box h2 {
    font-size: 26px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }

  .logo {
    font-size: 16px;
    gap: 9px;
  }

  .logo-icon {
    width: 38px;
    height: 38px;
    font-size: 15px;
  }

  .page-hero {
    padding: 84px 0 76px;
  }

  .page-hero h1 {
    font-size: 28px;
    letter-spacing: -.5px;
  }

  .page-hero-actions .btn {
    width: 100%;
  }

  .steps-grid {
    gap: 16px;
  }

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

  .stat-item {
    padding: 24px 18px;
  }

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

/* roulang page: article */
:root{
  --primary:#2563eb;
  --primary-dark:#1e40af;
  --primary-light:#eff6ff;
  --accent:#f97316;
  --accent-dark:#ea580c;
  --bg:#f8fafc;
  --bg-soft:#f1f5f9;
  --surface:#ffffff;
  --text:#0f172a;
  --text-secondary:#475569;
  --text-muted:#94a3b8;
  --border:#e2e8f0;
  --border-light:#f1f5f9;
  --radius:20px;
  --radius-sm:12px;
  --radius-xs:8px;
  --shadow:0 10px 30px rgba(15,23,42,.06);
  --shadow-lg:0 18px 44px rgba(15,23,42,.1);
  --transition:all .3s ease;
  --container:1200px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:var(--transition)}
button{font-family:inherit;cursor:pointer;border:none;background:none}
ul,ol{list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border-light);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:76px;
}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:1.32rem;font-weight:800;color:var(--text);
  letter-spacing:.3px;
}
.logo-icon{
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),#4f46e5);
  color:#fff;font-size:1rem;font-weight:800;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(37,99,235,.28);
}
.main-nav{
  display:flex;align-items:center;gap:6px;
}
.main-nav a{
  padding:9px 16px;border-radius:var(--radius-xs);
  font-size:.94rem;font-weight:600;color:var(--text-secondary);
  white-space:nowrap;
}
.main-nav a:hover{
  color:var(--primary);
  background:var(--primary-light);
}
.main-nav a.active{
  color:var(--primary);
  background:var(--primary-light);
}
.nav-cta{margin-left:8px}
.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:12px;
  background:var(--bg-soft);color:var(--text);
  font-size:1.15rem;align-items:center;justify-content:center;
}

/* ===== Breadcrumb ===== */
.page-breadcrumb{
  padding:20px 0 0;
}
.breadcrumb-row{
  display:flex;align-items:center;gap:10px;
  flex-wrap:wrap;
  font-size:.88rem;color:var(--text-muted);
}
.breadcrumb-row a{color:var(--text-muted);font-weight:500}
.breadcrumb-row a:hover{color:var(--primary)}
.breadcrumb-row .sep{color:var(--border)}
.breadcrumb-row .current{
  color:var(--text-secondary);
  max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ===== Article main ===== */
.article-section{
  padding:32px 0 56px;
}
.article-container{
  max-width:980px;
}
.article-main{
  background:var(--surface);
  border:1px solid var(--border-light);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:44px 52px;
}
.article-header{
  text-align:center;
  margin-bottom:28px;
}
.article-header h1{
  font-size:2rem;
  font-weight:800;
  line-height:1.4;
  letter-spacing:.5px;
  margin-bottom:18px;
}
.article-meta{
  display:flex;align-items:center;justify-content:center;
  gap:22px;flex-wrap:wrap;
  font-size:.88rem;color:var(--text-muted);
}
.meta-item{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--bg-soft);
  padding:6px 14px;border-radius:999px;
  font-weight:500;
}
.meta-item i{color:var(--primary);font-size:.82rem}
.article-cover{
  border-radius:var(--radius);
  overflow:hidden;
  margin:30px 0 32px;
  box-shadow:var(--shadow);
}
.article-cover img{
  width:100%;height:auto;
  object-fit:cover;
}

/* Article content typography */
.article-content{
  font-size:1rem;
  color:var(--text);
}
.article-content > * + *{
  margin-top:1.15rem;
}
.article-content p{
  color:#334155;
  line-height:1.9;
}
.article-content h2{
  font-size:1.42rem;font-weight:800;
  margin-top:2.2rem;
  padding-left:14px;
  border-left:4px solid var(--primary);
  line-height:1.45;
}
.article-content h3{
  font-size:1.16rem;font-weight:700;
  margin-top:1.6rem;
}
.article-content ul,
.article-content ol{
  padding-left:1.4rem;
  margin-top:1rem;
}
.article-content ul{list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{
  margin-top:.5rem;
  color:#334155;
}
.article-content blockquote{
  background:var(--primary-light);
  border-left:4px solid var(--primary);
  padding:16px 22px;
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--text-secondary);
  font-style:normal;
}
.article-content img{
  border-radius:var(--radius-sm);
  margin:1.25rem 0;
}
.article-content a{
  color:var(--primary);
  font-weight:600;
  border-bottom:1px solid rgba(37,99,235,.3);
}
.article-content a:hover{
  color:var(--primary-dark);
  border-color:var(--primary);
}
.article-content code{
  background:var(--bg-soft);
  padding:2px 8px;
  border-radius:6px;
  font-size:.9em;
  color:#ef4444;
}

/* Tags */
.article-tags{
  display:flex;align-items:center;flex-wrap:wrap;
  gap:10px;
  margin:36px 0 30px;
  padding:22px 0;
  border-top:1px dashed var(--border);
  border-bottom:1px dashed var(--border);
}
.tag-chip{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--bg-soft);
  color:var(--text-secondary);
  font-size:.84rem;font-weight:600;
  padding:7px 16px;
  border-radius:999px;
  transition:var(--transition);
}
.tag-chip:hover{
  background:var(--primary-light);
  color:var(--primary);
}
/* Bottom actions */
.article-bottom-actions{
  display:flex;justify-content:center;
  gap:14px;flex-wrap:wrap;
}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;
  padding:12px 26px;
  font-size:.94rem;font-weight:700;
  border-radius:12px;
  border:1px solid transparent;
  transition:var(--transition);
  line-height:1.2;
}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 8px 20px rgba(37,99,235,.24);
}
.btn-primary:hover{
  background:var(--primary-dark);
  transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(37,99,235,.32);
}
.btn-outline{
  border-color:var(--border);
  color:var(--text-secondary);
  background:#fff;
}
.btn-outline:hover{
  border-color:var(--primary);
  color:var(--primary);
  background:var(--primary-light);
}
.btn-accent{
  background:var(--accent);
  color:#fff;
  box-shadow:0 8px 20px rgba(249,115,22,.24);
}
.btn-accent:hover{
  background:var(--accent-dark);
  transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(249,115,22,.32);
}
.btn-light{
  background:#fff;color:var(--primary);
  box-shadow:0 8px 20px rgba(0,0,0,.1);
}
.btn-light:hover{
  transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(0,0,0,.15);
}

/* Not found */
.not-found-box{
  text-align:center;
  padding:56px 20px;
}
.not-found-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:88px;height:88px;
  border-radius:50%;
  background:var(--bg-soft);
  color:var(--text-muted);
  font-size:2.4rem;
  margin-bottom:24px;
}
.not-found-box h2{
  font-size:1.6rem;font-weight:800;
  margin-bottom:12px;
}
.not-found-box p{
  color:var(--text-secondary);
  max-width:420px;
  margin:0 auto 28px;
}

/* ===== Info strip ===== */
.info-section{
  padding:70px 0;
  background:var(--surface);
}
.info-card{
  display:flex;align-items:center;
  gap:64px;
  background:linear-gradient(135deg,#eff6ff,#f8fafc);
  border:1px solid var(--border-light);
  border-radius:var(--radius);
  padding:48px 56px;
  overflow:hidden;
  box-shadow:var(--shadow);
}
.info-card img{
  width:300px;height:auto;
  border-radius:16px;
  object-fit:cover;
  box-shadow:var(--shadow-lg);
}
.info-content h2{
  font-size:1.5rem;font-weight:800;
  margin-bottom:14px;
}
.info-content p{
  color:var(--text-secondary);
  line-height:1.85;
  margin-bottom:24px;
  max-width:520px;
}

/* ===== Categories ===== */
.categories-section{
  padding:80px 0;
  background:var(--bg);
}
.section-head{
  text-align:center;
  margin-bottom:48px;
}
.section-tag{
  display:inline-flex;
  color:var(--primary);
  background:var(--primary-light);
  font-size:.8rem;font-weight:700;
  letter-spacing:1px;
  padding:6px 16px;
  border-radius:999px;
  margin-bottom:14px;
}
.section-head h2{
  font-size:2rem;font-weight:800;
  margin-bottom:10px;
  letter-spacing:.5px;
}
.section-head p{
  color:var(--text-muted);
  font-size:.96rem;
}
.category-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:26px;
}
.category-card{
  background:var(--surface);
  border:1px solid var(--border-light);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:var(--transition);
  position:relative;
}
.category-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
}
.category-card-img{
  height:190px;
  overflow:hidden;
  position:relative;
}
.category-card-img img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.category-card:hover .category-card-img img{
  transform:scale(1.06);
}
.category-card-img::after{
  content:'';
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,23,42,0) 40%,rgba(15,23,42,.25));
}
.category-card-body{
  padding:34px 26px 30px;
}
.category-card-body h3{
  font-size:1.2rem;font-weight:800;
  margin-bottom:10px;
}
.category-card-body p{
  color:var(--text-muted);
  font-size:.92rem;
  line-height:1.75;
  margin-bottom:18px;
}
.category-link{
  font-size:.9rem;font-weight:700;
  color:var(--primary);
  display:inline-flex;align-items:center;gap:6px;
}
.category-link:hover{
  gap:10px;
  color:var(--primary-dark);
}

/* ===== FAQ ===== */
.faq-section{
  padding:80px 0;
  background:var(--surface);
}
.faq-container{
  max-width:860px;
}
.faq-list{
  display:flex;flex-direction:column;
  gap:16px;
}
.faq-item{
  background:var(--bg);
  border:1px solid var(--border-light);
  border-radius:16px;
  padding:22px 26px;
  transition:var(--transition);
}
.faq-item:hover{
  border-color:var(--border);
  box-shadow:var(--shadow);
}
.faq-q{
  display:flex;align-items:center;gap:14px;
  font-size:1.02rem;font-weight:700;
  color:var(--text);
  cursor:pointer;
}
.faq-q .fa{
  width:30px;height:30px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-light);
  color:var(--primary);
  border-radius:50%;
  flex-shrink:0;
  font-size:.85rem;
}
.faq-a{
  margin-top:14px;
  padding-left:44px;
  color:var(--text-secondary);
  font-size:.93rem;
  line-height:1.85;
}

/* ===== CTA ===== */
.cta-section{
  padding:80px 0;
  background:var(--bg);
}
.cta-box{
  background:linear-gradient(135deg,var(--primary),#1e3a8a);
  border-radius:var(--radius);
  padding:56px 40px;
  text-align:center;
  color:#fff;
  position:relative;
  overflow:hidden;
  box-shadow:0 20px 48px rgba(37,99,235,.3);
}
.cta-box::before{
  content:'';
  position:absolute;
  width:320px;height:320px;
  background:rgba(255,255,255,.08);
  border-radius:50%;
  top:-120px;right:-80px;
}
.cta-box h2{
  font-size:1.7rem;font-weight:800;
  margin-bottom:14px;
  letter-spacing:.5px;
}
.cta-box p{
  font-size:1rem;
  color:rgba(255,255,255,.85);
  max-width:520px;
  margin:0 auto 30px;
}
.cta-buttons{
  display:flex;justify-content:center;
  gap:16px;flex-wrap:wrap;
}

/* ===== Footer ===== */
.site-footer{
  background:#0f172a;
  color:#94a3b8;
  padding:70px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:44px;
  padding-bottom:48px;
}
.logo-footer{
  display:flex;align-items:center;gap:10px;
  color:#fff;
  font-size:1.25rem;font-weight:800;
  margin-bottom:18px;
}
.footer-brand p{
  font-size:.9rem;
  max-width:300px;
  color:var(--text-muted);
}
.footer-col h4{
  color:#fff;
  font-size:.92rem;font-weight:700;
  margin-bottom:18px;
  letter-spacing:.5px;
}
.footer-col ul li{
  margin-bottom:10px;
}
.footer-col ul li a{
  color:var(--text-muted);
  font-size:.9rem;
}
.footer-col ul li a:hover{
  color:var(--accent);
}
.footer-contact li{
  display:flex;align-items:center;gap:10px;
  font-size:.9rem;
}
.footer-contact .fa{color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:24px 0;
  display:flex;justify-content:space-between;align-items:center;
  flex-wrap:wrap;gap:12px;
  font-size:.86rem;
  color:var(--text-muted);
}
.footer-domain{color:var(--text-muted)}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .container{padding:0 20px}
  .article-main{padding:36px 34px}
  .info-card{
    flex-direction:column;
    gap:30px;
    padding:36px 30px;
    text-align:center;
  }
  .info-card img{width:100%;max-width:400px}
  .info-content p{margin-left:auto;margin-right:auto}
  .category-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:768px){
  .nav-toggle{
    display:inline-flex;
  }
  .main-nav{
    position:fixed;
    top:76px;left:0;right:0;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    padding:14px 20px 22px;
    gap:4px;
    box-shadow:0 20px 40px rgba(15,23,42,.1);
    transform:translateY(-120%);
    transition:transform .35s ease;
    z-index:99;
    border-bottom:1px solid var(--border-light);
    max-height:calc(100vh - 76px);
    overflow-y:auto;
  }
  .main-nav.open{
    transform:translateY(0);
  }
  .main-nav a{
    padding:14px 16px;
    font-size:1rem;
    text-align:center;
    border-radius:12px;
  }
  .nav-cta{margin:10px 0 0}
  .article-main{padding:30px 22px;border-radius:16px}
  .article-header h1{font-size:1.45rem}
  .article-meta{gap:10px}
  .meta-item{font-size:.8rem;padding:5px 12px}
  .article-content{font-size:.95rem}
  .category-grid{grid-template-columns:1fr}
  .breadcrumb-row .current{max-width:220px}
  .cta-box{padding:44px 24px}
  .cta-box h2{font-size:1.35rem}
}
@media (max-width:520px){
  .header-inner{height:66px}
  .logo{font-size:1.1rem}
  .logo-icon{width:36px;height:36px;font-size:.9rem}
  .main-nav{top:66px}
  .article-section{padding:24px 0 40px}
  .article-main{padding:26px 16px}
  .article-header h1{font-size:1.28rem}
  .article-meta{flex-direction:column;gap:8px}
  .article-tags{justify-content:center}
  .article-bottom-actions .btn{width:100%}
  .info-card{padding:28px 20px}
  .info-content h2{font-size:1.25rem}
  .section-head h2{font-size:1.55rem}
  .categories-section{padding:60px 0}
  .faq-section{padding:60px 0}
  .faq-a{padding-left:0}
  .cta-section{padding:60px 0}
  .cta-box{padding:38px 18px;border-radius:16px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;text-align:center}
}

/* roulang page: category2 */
/* ========== 设计变量 ========== */
:root {
  --primary: #1E3A8A;
  --primary-dark: #12245B;
  --primary-light: #3B5BDB;
  --accent: #F59E0B;
  --accent-hover: #D97706;
  --accent-soft: #FEF3C7;
  --cyan: #06B6D4;
  --bg-body: #F5F7FB;
  --bg-white: #FFFFFF;
  --bg-deep: #0F172A;
  --bg-light: #EEF2FF;
  --text-main: #1E293B;
  --text-sub: #64748B;
  --text-weak: #94A3B8;
  --border: #E2E8F0;
  --border-light: #F1F5F9;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 12px rgba(15, 23, 42, 0.06);
  --shadow: 0 10px 40px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 60px rgba(15, 23, 42, 0.14);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

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

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }

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

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 32px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  border: none;
  transition: var(--transition);
  cursor: pointer;
  letter-spacing: 0.3px;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 18px rgba(30, 58, 138, 0.25);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(30, 58, 138, 0.35);
}
.btn-primary:active { transform: translateY(0); }

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 18px rgba(245, 158, 11, 0.28);
}
.btn-accent:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(245, 158, 11, 0.38);
}
.btn-accent:active { transform: translateY(0); }

.btn-ghost {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
}
.btn-ghost:hover {
  background: var(--bg-light);
  transform: translateY(-2px);
}

.btn-white {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}
.btn-white:hover {
  background: var(--bg-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

/* ========== 头部导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  box-shadow: 0 2px 20px rgba(15, 23, 42, 0.05);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 900;
  box-shadow: 0 4px 14px rgba(30, 58, 138, 0.3);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.main-nav a {
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  border-radius: 40px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  transition: var(--transition);
}

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

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

.main-nav a.active::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  margin-right: 6px;
}

.main-nav .nav-cta {
  margin-left: 8px;
  padding: 0;
  background: transparent;
}
.main-nav .nav-cta:hover { background: transparent; transform: none; }

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  font-size: 22px;
  color: var(--primary);
  border-radius: 10px;
  transition: var(--transition);
}
.nav-toggle:hover { background: var(--bg-light); }

/* ========== 页面横幅 ========== */
.page-hero {
  position: relative;
  padding: 90px 0 70px;
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.94) 0%, rgba(59, 91, 219, 0.85) 55%, rgba(6, 182, 212, 0.55) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -10%;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.12) 0%, transparent 70%);
  border-radius: 50%;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: -80%;
  left: -5%;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.2) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.page-hero .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 24px;
}
.page-hero .breadcrumb a { color: rgba(255,255,255,0.85); }
.page-hero .breadcrumb a:hover { color: #fff; }
.page-hero .breadcrumb .sep { color: rgba(255,255,255,0.4); }
.page-hero .breadcrumb .current { color: #fff; font-weight: 500; }

.page-hero h1 {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -1px;
  margin-bottom: 18px;
}

.page-hero p {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  max-width: 620px;
  margin-bottom: 28px;
}

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

.hero-tags .tag {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255,255,255,0.25);
  color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
}

/* ========== 通用区块 ========== */
.section { padding: 90px 0; }

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

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 48px;
  gap: 24px;
}

.section-head .eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.section-head h2 {
  font-size: 36px;
  font-weight: 750;
  line-height: 1.3;
  letter-spacing: -0.8px;
  color: var(--text-main);
}

.section-head .sub {
  font-size: 15px;
  color: var(--text-sub);
  margin-top: 8px;
}

.section-head .head-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  padding: 8px 18px;
  border-radius: 40px;
  background: var(--bg-light);
  transition: var(--transition);
  white-space: nowrap;
}
.section-head .head-link:hover { background: var(--primary); color: #fff; transform: translateX(3px); }

/* ========== 分类标签栏 ========== */
.channel-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
  padding: 14px;
  background: var(--bg-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
}

.channel-tabs .tab {
  padding: 10px 22px;
  border-radius: 40px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-sub);
  background: var(--bg-body);
  border: 1px solid transparent;
  transition: var(--transition);
}
.channel-tabs .tab:hover { color: var(--primary); background: var(--bg-light); border-color: var(--border); }
.channel-tabs .tab.active { background: var(--primary); color: #fff; font-weight: 600; box-shadow: 0 4px 14px rgba(30,58,138,0.25); }

/* ========== 卡片 ========== */
.card {
  background: var(--bg-white);
  border-radius: var(--radius);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: var(--transition);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: transparent;
}

.card-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--bg-light);
}
.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.card:hover .card-media img { transform: scale(1.06); }

.card-media .badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 30px;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
}

.card-media .badge-hot {
  background: #EF4444;
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
}

.card-media .play-layer {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.25);
  opacity: 0;
  transition: var(--transition);
}
.card:hover .card-media .play-layer { opacity: 1; }

.play-layer .play-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255,255,255,0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--primary);
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}

.card-body { padding: 24px; }

.card-body .card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-weak);
  margin-bottom: 12px;
}
.card-body .card-meta .divider { width: 3px; height: 3px; border-radius: 50%; background: var(--border); }

.card-body h3 {
  font-size: 18px;
  font-weight: 650;
  line-height: 1.5;
  margin-bottom: 10px;
  color: var(--text-main);
}
.card-body h3 a:hover { color: var(--primary); }

.card-body .desc {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 20px;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-top: 1px solid var(--border-light);
  background: var(--bg-body);
}

.card-footer .read-more {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.card-footer .read-more:hover { gap: 10px; }
.card-footer .read-more i { font-size: 12px; }

.card-footer .stat {
  font-size: 13px;
  color: var(--text-weak);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

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

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

/* ========== 特色公告横栏 ========== */
.feature-strip {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 0;
  background: var(--bg-deep);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  color: #fff;
  margin-bottom: 70px;
}

.feature-strip .feature-img {
  position: relative;
  min-height: 340px;
}
.feature-strip .feature-img img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.feature-strip .feature-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, transparent 40%, rgba(15,23,42,0.9) 100%);
}
.feature-strip .feature-img .play-media {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  background: rgba(255,255,255,0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--primary);
  z-index: 2;
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
  transition: var(--transition);
}
.feature-strip .feature-img .play-media:hover { transform: translate(-50%, -50%) scale(1.1); }

.feature-strip .feature-body { padding: 44px; display: flex; flex-direction: column; justify-content: center; gap: 14px; }

.feature-strip .feature-tag {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  background: rgba(245, 158, 11, 0.2);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 5px 14px;
  border-radius: 30px;
}

.feature-strip h3 { font-size: 28px; font-weight: 750; line-height: 1.4; }
.feature-strip p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.7); }

.feature-strip .feature-actions { display: flex; gap: 12px; margin-top: 8px; }

/* ========== 公告时间线 ========== */
.timeline { position: relative; padding-left: 36px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 4px;
  width: 2px;
  height: calc(100% - 8px);
  background: linear-gradient(to bottom, var(--primary), var(--cyan), var(--accent), transparent);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  padding: 0 0 34px 18px;
}
.timeline-item:last-child { padding-bottom: 0; }

.timeline-item::before {
  content: '';
  position: absolute;
  left: -31px;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary);
  border: 4px solid var(--bg-body);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.timeline-item .tl-date {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-weak);
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.timeline-item h4 { font-size: 17px; font-weight: 650; color: var(--text-main); margin-bottom: 6px; }
.timeline-item p { font-size: 14px; color: var(--text-sub); line-height: 1.7; max-width: 420px; }
.timeline-item .tl-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--primary);
  font-weight: 600;
  margin-top: 8px;
  background: var(--bg-light);
  padding: 3px 12px;
  border-radius: 30px;
}

/* ========== 数据统计 ========== */
.stats-band {
  background: var(--bg-deep);
  padding: 64px 0;
  position: relative;
  overflow: hidden;
}
.stats-band::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(59,91,219,0.3) 0%, transparent 70%);
  border-radius: 50%;
}

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

.stat-item {
  text-align: center;
  padding: 28px 20px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.08);
  transition: var(--transition);
}
.stat-item:hover { background: rgba(255,255,255,0.1); transform: translateY(-4px); }

.stat-item .num {
  font-size: 40px;
  font-weight: 850;
  color: #fff;
  line-height: 1.2;
  letter-spacing: -1px;
}
.stat-item .num em { font-style: normal; color: var(--accent); }
.stat-item .label {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  margin-top: 8px;
}

/* ========== 活动流程 ========== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}

.process-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  border: 1px solid var(--border-light);
  padding: 34px 26px;
  text-align: center;
  transition: var(--transition);
  position: relative;
}
.process-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }

.process-card .step-num {
  position: absolute;
  top: 20px;
  right: 24px;
  font-size: 36px;
  font-weight: 850;
  color: var(--border);
  line-height: 1;
}

.process-card .step-icon {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  background: var(--bg-light);
  color: var(--primary);
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  transition: var(--transition);
}
.process-card:hover .step-icon { background: var(--primary); color: #fff; transform: scale(1.08); }

.process-card h4 { font-size: 16px; font-weight: 650; margin-bottom: 10px; }
.process-card p { font-size: 13px; color: var(--text-sub); line-height: 1.7; }

/* ========== FAQ ========== */
.faq-wrap { max-width: 860px; margin: 0 auto; }

.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 0;
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--primary-light); box-shadow: var(--shadow-sm); }

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 26px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  list-style: none;
  cursor: pointer;
  transition: var(--transition);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 14px;
  color: var(--text-weak);
  transition: var(--transition);
  flex-shrink: 0;
}
.faq-item[open] summary { color: var(--primary); }
.faq-item[open] summary::after { transform: rotate(180deg); color: var(--primary); }

.faq-item .faq-body { padding: 0 26px 22px; font-size: 14px; color: var(--text-sub); line-height: 1.8; }

/* ========== CTA ========== */
.cta-band {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--cyan) 130%), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute;
  top: -60%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255,255,255,0.12) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  max-width: 720px;
  margin: 0 auto;
}
.cta-inner h2 { font-size: 38px; font-weight: 800; line-height: 1.3; margin-bottom: 18px; letter-spacing: -0.8px; }
.cta-inner p { font-size: 16px; line-height: 1.8; color: rgba(255,255,255,0.85); margin-bottom: 34px; }

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

/* ========== 页脚 ========== */
.site-footer {
  background: #0B1120;
  color: rgba(255,255,255,0.7);
  padding: 70px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 50px;
}

.logo-footer {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 18px;
}

.logo-footer .logo-icon {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--cyan) 100%);
  box-shadow: 0 4px 16px rgba(59, 91, 219, 0.3);
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.55);
  max-width: 300px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}

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

.footer-col ul a {
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  transition: var(--transition);
}
.footer-col ul a:hover { color: var(--accent); padding-left: 6px; }

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,0.55);
}
.footer-contact li i { width: 20px; color: var(--accent); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 30px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

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

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .feature-strip { grid-template-columns: 1fr; }
  .feature-strip .feature-img { min-height: 240px; }
  .page-hero h1 { font-size: 38px; }
}

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

  .main-nav {
    position: fixed;
    top: 76px;
    left: 0;
    width: 100%;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 20px 24px 28px;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.14);
    border-bottom: 1px solid var(--border-light);
    transform: translateY(-140%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .main-nav a {
    padding: 13px 16px;
    font-size: 16px;
    border-radius: 12px;
  }
  .main-nav a.active::before { display: none; }
  .main-nav .nav-cta { margin-left: 0; margin-top: 10px; }
  .main-nav .nav-cta .btn { width: 100%; }

  .nav-toggle { display: flex; align-items: center; justify-content: center; }

  .header-inner { height: 68px; }
  .main-nav { top: 68px; }

  .page-hero { padding: 64px 0 56px; }
  .page-hero h1 { font-size: 30px; }

  .section-head { flex-direction: column; align-items: flex-start; gap: 12px; }
  .section-head h2 { font-size: 28px; }

  .grid-2, .grid-3, .stats-grid, .process-grid { grid-template-columns: 1fr; gap: 20px; }

  .feature-strip .feature-body { padding: 28px; }
  .feature-strip h3 { font-size: 22px; }

  .footer-grid { grid-template-columns: 1fr; gap: 28px; }

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

  .timeline { padding-left: 28px; }
  .timeline-item::before { left: -25px; width: 14px; height: 14px; }
}

@media (max-width: 520px) {
  .container { padding: 0 18px; }

  .page-hero h1 { font-size: 25px; }
  .page-hero p { font-size: 15px; }

  .stats-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
  .stat-item .num { font-size: 32px; }

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

  .btn { width: 100%; }
  .cta-actions { flex-direction: column; align-items: stretch; }

  .feature-strip .feature-body { padding: 22px; }
  .feature-strip h3 { font-size: 19px; }
  .feature-strip .feature-actions { flex-direction: column; }

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

/* roulang page: category3 */
:root {
  --primary: #0e4d92;
  --primary-light: #1f6fd6;
  --primary-dark: #0a3a6e;
  --accent: #ff8a3d;
  --accent-dark: #e96a1e;
  --bg: #f4f7fc;
  --white: #ffffff;
  --text: #1c2b41;
  --text-weak: #5e6f87;
  --line: #e4eaf2;
  --radius: 18px;
  --radius-sm: 10px;
  --shadow-sm: 0 4px 14px rgba(16, 42, 80, 0.06);
  --shadow-md: 0 12px 30px rgba(16, 42, 80, 0.1);
  --shadow-lg: 0 22px 48px rgba(16, 42, 80, 0.14);
  --transition: 0.25s ease;
  --font-main: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

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

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

img {
  max-width: 100%;
  display: block;
  border: 0;
}

button, input {
  font-family: inherit;
  font-size: 100%;
  border: none;
  background: none;
  cursor: pointer;
}

ul, ol {
  list-style: none;
}

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

img {
  border-radius: var(--radius-sm);
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.4;
  border: 2px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
  color: #fff;
  box-shadow: 0 8px 22px rgba(14, 77, 146, 0.25);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  box-shadow: 0 8px 22px rgba(255, 138, 61, 0.28);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.45);
  color: #fff;
  backdrop-filter: blur(4px);
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 30px rgba(14, 77, 146, 0.2);
}

.btn-accent:hover {
  box-shadow: 0 14px 30px rgba(255, 138, 61, 0.34);
}

.btn:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(255, 138, 61, 0.45);
  outline-offset: 3px;
}

/* ===== 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 99;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 4px 18px rgba(16, 42, 80, 0.04);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.5px;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 900;
  box-shadow: 0 8px 18px rgba(14, 77, 146, 0.25);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.main-nav > a {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 8px 0;
  letter-spacing: 0.2px;
}

.main-nav > a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 3px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-dark));
  transition: width 0.3s ease;
}

.main-nav > a:hover::after,
.main-nav > a.active::after {
  width: 100%;
}

.main-nav > a.active {
  color: var(--primary);
  font-weight: 700;
}

.main-nav .nav-cta {
  margin-left: 8px;
}

.nav-cta .btn {
  padding: 9px 22px;
  font-size: 14px;
}

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

.nav-toggle:hover {
  background: #ecf0f7;
}

/* ===== Hero ===== */
.hero.page-hero {
  position: relative;
  padding: 120px 0 108px;
  background-size: cover;
  background-position: center;
  color: #fff;
  overflow: hidden;
}

.hero.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(10, 40, 75, 0.92) 0%, rgba(14, 77, 146, 0.72) 55%, rgba(14, 77, 146, 0.38) 100%);
  z-index: 1;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  backdrop-filter: blur(6px);
  margin-bottom: 20px;
}

.hero-title {
  font-size: clamp(2rem, 4.6vw, 3.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 18px;
  letter-spacing: 1px;
}

.hero-subtitle {
  font-size: clamp(1rem, 1.7vw, 1.15rem);
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.88);
  max-width: 660px;
  margin-bottom: 36px;
}

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

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  margin-top: 50px;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
}

.stat-item .stat-num {
  font-size: 28px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}

.stat-item .stat-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.68);
  letter-spacing: 0.5px;
}

/* ===== 通用版块 ===== */
.section {
  padding: 96px 0;
}

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

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

.section-dark {
  background: linear-gradient(135deg, #0a3a6e, #0e4d92);
  color: #fff;
}

.section-header {
  max-width: 720px;
  margin-bottom: 52px;
}

.section-header.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(14, 77, 146, 0.08);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.section-dark .section-tag {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--text);
  margin: 14px 0 14px;
}

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

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

.section-dark .section-desc {
  color: rgba(255, 255, 255, 0.75);
}

/* ===== 核心价值 ===== */
.intro-grid {
  display: grid;
  grid-template-columns: 1.08fr 1fr;
  gap: 64px;
  align-items: center;
}

.intro-media {
  position: relative;
}

.intro-media img {
  border-radius: 22px;
  box-shadow: var(--shadow-lg);
  width: 100%;
  object-fit: cover;
}

.intro-media::after {
  content: "";
  position: absolute;
  inset: 18px -18px -18px 18px;
  border: 2px solid rgba(255, 138, 61, 0.4);
  border-radius: 22px;
  z-index: -1;
}

.intro-content h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text);
}

.intro-content p {
  color: var(--text-weak);
  line-height: 1.9;
  margin-bottom: 24px;
}

.feature-list {
  display: grid;
  gap: 14px;
}

.feature-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px 18px;
  background: #f8faff;
  border: 1px solid var(--line);
  border-radius: 14px;
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.feature-list i {
  color: var(--accent);
  font-size: 20px;
  width: 24px;
  text-align: center;
  margin-top: 3px;
}

.feature-list strong {
  display: block;
  font-size: 15px;
  color: var(--text);
  margin-bottom: 4px;
}

.feature-list span {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
}

/* ===== 卡片网格 ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 26px;
}

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

.service-card:hover {
  transform: translateY(-7px);
  box-shadow: var(--shadow-md);
}

.card-media {
  height: 180px;
  overflow: hidden;
  position: relative;
}

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

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

.card-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 40, 75, 0.3), transparent 60%);
}

.card-content {
  padding: 24px 22px 26px;
}

.card-tag {
  display: inline-block;
  padding: 4px 13px;
  background: rgba(255, 138, 61, 0.13);
  color: var(--accent-dark);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin: 14px 0 8px;
  line-height: 1.4;
}

.card-desc {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.8;
}

/* ===== 服务流程 ===== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  margin-top: 10px;
}

.process-step {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 20px;
  padding: 34px 26px;
  text-align: center;
  color: #fff;
  transition: transform var(--transition), background var(--transition);
}

.process-step:hover {
  transform: translateY(-6px);
  background: rgba(255, 255, 255, 0.13);
}

.process-num {
  font-size: 36px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent), #ffb27e);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
}

.process-title {
  font-size: 18px;
  font-weight: 700;
  margin: 16px 0 10px;
}

.process-desc {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.72);
}

/* ===== 数据统计 ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}

.stat-box {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 38px 20px 32px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.stat-box:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.stat-box .stat-num {
  font-size: 42px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.2;
}

.stat-box .stat-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-top: 10px;
}

.stat-box .stat-sub {
  font-size: 13px;
  color: var(--text-weak);
  margin-top: 4px;
}

/* ===== 体验洞察 ===== */
.insight-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.insight-card {
  background: #fafcff;
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.insight-thumb {
  height: 170px;
  width: 100%;
  object-fit: cover;
}

.insight-body {
  padding: 22px;
}

.insight-meta {
  display: flex;
  gap: 10px;
  font-size: 12px;
  color: var(--text-weak);
  margin-bottom: 8px;
}

.insight-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 8px;
}

.insight-desc {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.75;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 840px;
  margin: 0 auto;
}

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

.faq-item.open {
  box-shadow: var(--shadow-md);
}

.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  user-select: none;
}

.faq-q::after {
  content: "\f078";
  font-family: FontAwesome;
  font-size: 14px;
  color: var(--accent);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.open .faq-q::after {
  transform: rotate(180deg);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  padding: 0 24px;
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.85;
}

.faq-item.open .faq-a {
  padding-bottom: 22px;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 110px 0;
  background-size: cover;
  background-position: center;
  text-align: center;
  color: #fff;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(10, 40, 75, 0.9), rgba(14, 77, 146, 0.68));
}

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

.cta-title {
  font-size: clamp(1.8rem, 3.2vw, 2.7rem);
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-desc {
  font-size: 16px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.85);
  max-width: 620px;
  margin: 0 auto 32px;
}

.cta-note {
  margin-top: 18px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}

/* ===== 页脚 ===== */
.site-footer {
  background: #0b1f38;
  color: #a5b4c9;
  padding: 72px 0 26px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 44px;
  margin-bottom: 46px;
}

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

.footer-brand p {
  margin-top: 16px;
  font-size: 14px;
  color: #8fa1b8;
  line-height: 1.8;
  max-width: 320px;
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 18px;
}

.footer-col li {
  margin-bottom: 12px;
}

.footer-col a {
  color: #a5b4c9;
  font-size: 14px;
  transition: color var(--transition), padding-left var(--transition);
}

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

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 13px;
  color: #6d829c;
}

.footer-domain {
  color: #8fa1b8;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .intro-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

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

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

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

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

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

  .section {
    padding: 72px 0;
  }

  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 18px 24px 24px;
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--line);
    transform: translateY(-18px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.28s ease, opacity 0.28s ease;
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .main-nav > a {
    padding: 12px 8px;
    border-radius: 10px;
    font-size: 16px;
  }

  .main-nav > a.active {
    background: rgba(14, 77, 146, 0.06);
  }

  .main-nav > a::after {
    display: none;
  }

  .main-nav .nav-cta {
    margin: 10px 0 0;
  }

  .nav-cta .btn {
    width: 100%;
    justify-content: center;
    padding: 12px 22px;
  }

  .nav-toggle {
    display: flex;
  }

  .hero.page-hero {
    padding: 96px 0 84px;
  }

  .hero-stats {
    gap: 24px;
  }

  .hero-actions .btn {
    padding: 12px 24px;
  }

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

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

  .section {
    padding: 60px 0;
  }

  .header-inner {
    height: 64px;
  }

  .main-nav {
    top: 64px;
  }

  .logo {
    font-size: 17px;
  }

  .logo-icon {
    width: 34px;
    height: 34px;
    font-size: 14px;
  }

  .hero.page-hero {
    padding: 76px 0 68px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .hero-stats {
    flex-direction: column;
    gap: 18px;
  }

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

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

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

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

  .cta-section {
    padding: 80px 0;
  }
}