/* roulang page: index */
:root {
  --primary: #1a4b8c;
  --primary-dark: #123a6e;
  --primary-light: #e9f0fa;
  --accent: #e63946;
  --accent-hover: #c92a35;
  --dark: #0f1d2e;
  --text: #263847;
  --text-light: #6d7f92;
  --bg: #f6f9fd;
  --bg-white: #ffffff;
  --border: #dfe7f0;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(15, 29, 46, 0.08);
  --shadow-lg: 0 20px 50px rgba(15, 29, 46, 0.14);
  --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif; background: var(--bg); color: var(--text); line-height: 1.7; font-size: 16px; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button, input, select { font-family: inherit; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; color: var(--dark); font-weight: 700; }
.container { max-width: 1280px; padding-left: 24px; padding-right: 24px; }
.section { padding: 100px 0; }
.section-head { text-align: center; max-width: 700px; margin: 0 auto 56px; }
.section-sub { display: inline-block; font-size: 14px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent); background: rgba(230, 57, 70, 0.08); padding: 6px 18px; border-radius: 30px; margin-bottom: 16px; }
.section-title { font-size: 36px; margin-bottom: 14px; }
.section-desc { color: var(--text-light); font-size: 17px; }
/* Header */
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255, 255, 255, 0.92); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); border-bottom: 1px solid var(--border); box-shadow: 0 4px 24px rgba(15, 29, 46, 0.06); }
.custom-navbar { min-height: 78px; padding: 0; }
.custom-navbar .container { display: flex; align-items: center; justify-content: space-between; position: relative; }
.navbar-left, .navbar-right { display: flex; align-items: center; gap: 32px; }
.brand-logo { display: flex; align-items: center; gap: 10px; padding: 0; color: var(--primary); font-weight: 800; font-size: 22px; line-height: 1.2; white-space: nowrap; }
.brand-logo i { font-size: 28px; color: var(--accent); }
.brand-logo em { display: block; font-style: normal; font-size: 12px; font-weight: 500; color: var(--text-light); letter-spacing: 0.08em; }
.brand-logo span { display: flex; flex-direction: column; }
.custom-navbar .nav-link { font-size: 15.5px; font-weight: 500; color: var(--text); padding: 0 !important; position: relative; transition: var(--transition); }
.custom-navbar .nav-link::after { content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 3px; background: var(--accent); border-radius: 3px; transition: var(--transition); }
.custom-navbar .nav-link:hover, .custom-navbar .nav-link.active { color: var(--primary); }
.custom-navbar .nav-link:hover::after, .custom-navbar .nav-link.active::after { width: 100%; }
.btn-brand-nav { background: var(--primary); color: #fff !important; border: none; border-radius: 30px; padding: 9px 22px; font-size: 14.5px; font-weight: 600; transition: var(--transition); }
.btn-brand-nav:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(26, 75, 140, 0.3); }
.navbar-toggler { border: none; padding: 8px; background: transparent; display: flex; flex-direction: column; gap: 5px; }
.toggler-bar { width: 26px; height: 3px; background: var(--primary); border-radius: 3px; transition: var(--transition); }
.navbar-toggler:hover .toggler-bar { background: var(--accent); }
.mobile-nav-inner { padding: 18px 24px 24px; background: #fff; border-top: 1px solid var(--border); display: flex; flex-direction: column; gap: 4px; }
.mobile-link { padding: 12px 20px; border-radius: var(--radius-sm); font-weight: 500; text-align: center; transition: var(--transition); }
.mobile-link:hover, .mobile-link.active { background: var(--primary-light); color: var(--primary); }
/* Hero */
.hero { position: relative; min-height: 82vh; display: flex; align-items: center; background: linear-gradient(135deg, rgba(15, 29, 46, 0.88), rgba(26, 75, 140, 0.78)), url('/assets/images/backpic/back-1.png') center/cover no-repeat; color: #fff; padding: 80px 0; overflow: hidden; }
.hero::after { content: ""; position: absolute; bottom: -60px; right: -60px; width: 260px; height: 260px; background: rgba(230, 57, 70, 0.25); border-radius: 50%; filter: blur(70px); }
.hero-content { max-width: 640px; position: relative; z-index: 2; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255, 255, 255, 0.12); backdrop-filter: blur(8px); border: 1px solid rgba(255, 255, 255, 0.25); padding: 7px 18px; border-radius: 30px; font-size: 13.5px; font-weight: 500; margin-bottom: 22px; color: rgba(255, 255, 255, 0.9); }
.hero-badge i { color: #ffd166; }
.hero h1 { font-size: 44px; color: #fff; font-weight: 800; margin-bottom: 12px; text-shadow: 0 4px 20px rgba(0,0,0,0.3); }
.hero h1 span { color: #ffd166; }
.hero-sub { font-size: 18px; color: rgba(255, 255, 255, 0.85); margin-bottom: 12px; font-weight: 400; line-height: 1.6; }
.hero-points { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 30px; }
.hero-points .point { display: inline-flex; align-items: center; gap: 7px; font-size: 14.5px; color: rgba(255, 255, 255, 0.75); }
.hero-points .point i { color: #ffd166; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.btn-hero-primary { background: var(--accent); color: #fff; border: none; border-radius: 40px; padding: 15px 36px; font-size: 16px; font-weight: 700; box-shadow: 0 10px 30px rgba(230, 57, 70, 0.35); transition: var(--transition); }
.btn-hero-primary:hover { background: var(--accent-hover); transform: translateY(-3px); color: #fff; box-shadow: 0 14px 38px rgba(230, 57, 70, 0.4); }
.btn-hero-ghost { background: rgba(255, 255, 255, 0.1); color: #fff; border: 1.5px solid rgba(255, 255, 255, 0.35); border-radius: 40px; padding: 13px 30px; font-size: 15.5px; font-weight: 600; backdrop-filter: blur(6px); transition: var(--transition); }
.btn-hero-ghost:hover { background: rgba(255, 255, 255, 0.2); border-color: rgba(255, 255, 255, 0.6); color: #fff; transform: translateY(-2px); }
.hero-illustration { position: relative; z-index: 2; display: flex; align-items: center; justify-content: center; }
.hero-illustration img { border-radius: var(--radius-lg); box-shadow: 0 30px 80px rgba(0,0,0,0.4); border: 3px solid rgba(255,255,255,0.15); max-height: 380px; width: 100%; object-fit: cover; }
/* Stats */
.stats-section { position: relative; z-index: 5; margin-top: -70px; }
.stats-card { background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); padding: 40px 30px; text-align: center; border: 1px solid var(--border); transition: var(--transition); height: 100%; }
.stats-card:hover { transform: translateY(-5px); box-shadow: 0 24px 60px rgba(15, 29, 46, 0.15); }
.stats-card .icon { width: 56px; height: 56px; border-radius: 16px; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; font-size: 22px; color: var(--primary); background: var(--primary-light); }
.stats-card .num { font-size: 36px; font-weight: 800; color: var(--dark); line-height: 1.2; }
.stats-card .num small { font-size: 16px; color: var(--text-light); font-weight: 600; }
.stats-card .txt { font-size: 14px; color: var(--text-light); margin-top: 4px; }
/* Category Cards */
.cat-card { background: #fff; border-radius: var(--radius-lg); border: 1px solid var(--border); overflow: hidden; box-shadow: var(--shadow); transition: var(--transition); height: 100%; display: block; }
.cat-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
.cat-card-img { height: 200px; overflow: hidden; position: relative; }
.cat-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.cat-card:hover .cat-card-img img { transform: scale(1.06); }
.cat-card-img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(15, 29, 46, 0.35), transparent 60%); }
.cat-card-body { padding: 26px 26px 30px; position: relative; }
.cat-card-tag { display: inline-block; background: var(--primary-light); color: var(--primary); font-size: 13px; font-weight: 600; padding: 4px 14px; border-radius: 20px; margin-bottom: 12px; }
.cat-card h3 { font-size: 20px; margin-bottom: 10px; color: var(--dark); }
.cat-card p { color: var(--text-light); font-size: 15px; margin-bottom: 16px; }
.cat-card-meta { display: flex; align-items: center; gap: 6px; color: var(--accent); font-weight: 600; font-size: 14.5px; }
.cat-card-meta i { transition: transform 0.3s ease; }
.cat-card:hover .cat-card-meta i { transform: translateX(6px); }
/* News List */
.news-section { background: #fff; padding: 100px 0; }
.news-section .section-head { margin-bottom: 48px; }
.news-list-wrap { max-width: 900px; margin: 0 auto; }
.news-item { display: flex; align-items: center; gap: 24px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 24px 28px; margin-bottom: 16px; transition: var(--transition); }
.news-item:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateX(6px); }
.news-item-date { min-width: 88px; text-align: center; background: var(--primary); color: #fff; border-radius: var(--radius-sm); padding: 10px 8px; line-height: 1.2; }
.news-item-date .d { font-size: 24px; font-weight: 800; }
.news-item-date .m { font-size: 12px; opacity: 0.85; }
.news-item-content { flex: 1; min-width: 0; }
.news-item-content .cat { font-size: 12.5px; color: var(--accent); font-weight: 600; margin-bottom: 4px; display: inline-block; }
.news-item-content h4 { font-size: 18px; margin-bottom: 4px; }
.news-item-content h4 a { transition: var(--transition); }
.news-item-content h4 a:hover { color: var(--primary); }
.news-item-content p { color: var(--text-light); font-size: 14.5px; margin: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.news-item-link { color: var(--primary); font-size: 20px; padding: 10px; border-radius: 50%; background: var(--primary-light); width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; transition: var(--transition); flex-shrink: 0; }
.news-item-link:hover { background: var(--primary); color: #fff; transform: rotate(-20deg); }
.news-empty { text-align: center; padding: 60px 20px; color: var(--text-light); background: var(--bg); border-radius: var(--radius-lg); font-size: 17px; }
/* Feature Split */
.feature-section { background: linear-gradient(135deg, #f6f9fd 0%, #eaf1fa 100%); padding: 100px 0; overflow: hidden; }
.feature-img-wrap { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.feature-img-wrap img { width: 100%; height: 100%; object-fit: cover; min-height: 340px; }
.feature-img-wrap::after { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, transparent 40%, rgba(26, 75, 140, 0.25)); }
.feature-float-badge { position: absolute; bottom: 30px; left: -20px; background: #fff; border-radius: var(--radius-md); box-shadow: var(--shadow-lg); padding: 16px 24px; display: flex; align-items: center; gap: 14px; z-index: 2; border-left: 5px solid var(--accent); }
.feature-float-badge .f-icon { width: 44px; height: 44px; border-radius: 12px; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 20px; }
.feature-float-badge .f-num { font-size: 20px; font-weight: 800; color: var(--dark); line-height: 1.1; }
.feature-float-badge .f-txt { font-size: 13px; color: var(--text-light); }
.feature-list { margin-top: 28px; display: flex; flex-direction: column; gap: 18px; }
.feature-item { display: flex; gap: 16px; align-items: flex-start; }
.feature-item .f-icon { width: 48px; height: 48px; border-radius: 14px; background: #fff; box-shadow: var(--shadow); color: var(--accent); display: flex; align-items: center; justify-content: center; font-size: 18px; flex-shrink: 0; }
.feature-item h4 { font-size: 17px; margin-bottom: 4px; }
.feature-item p { font-size: 14.5px; color: var(--text-light); margin: 0; }
/* Process */
.process-section { background: var(--dark); color: #fff; padding: 100px 0; position: relative; overflow: hidden; }
.process-section::before { content: ""; position: absolute; top: -120px; right: -120px; width: 320px; height: 320px; background: rgba(230, 57, 70, 0.15); border-radius: 50%; }
.process-section .section-title { color: #fff; }
.process-section .section-desc { color: rgba(255, 255, 255, 0.7); }
.process-step { text-align: center; padding: 30px 20px; border-radius: var(--radius-lg); background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.08); height: 100%; transition: var(--transition); backdrop-filter: blur(8px); }
.process-step:hover { background: rgba(255, 255, 255, 0.1); transform: translateY(-6px); }
.process-num { font-size: 48px; font-weight: 800; color: rgba(255, 255, 255, 0.15); line-height: 1; position: absolute; top: 14px; right: 20px; font-family: Georgia, serif; }
.process-step .p-icon { width: 62px; height: 62px; border-radius: 50%; background: var(--accent); color: #fff; font-size: 22px; display: flex; align-items: center; justify-content: center; margin: 0 auto 18px; box-shadow: 0 10px 28px rgba(230, 57, 70, 0.4); }
.process-step h4 { color: #fff; font-size: 18px; margin-bottom: 8px; }
.process-step p { color: rgba(255, 255, 255, 0.65); font-size: 14.5px; margin: 0; }
/* FAQ */
.faq-section { background: #fff; padding: 100px 0; }
.faq-wrap { max-width: 850px; margin: 0 auto; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: 14px; background: #fff; overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.faq-item summary { padding: 22px 28px; cursor: pointer; font-weight: 600; font-size: 16.5px; display: flex; justify-content: space-between; align-items: center; gap: 20px; list-style: none; color: var(--dark); transition: var(--transition); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i { color: var(--accent); transition: transform 0.3s ease; }
.faq-item[open] summary i { transform: rotate(45deg); }
.faq-item[open] { border-color: var(--primary); box-shadow: var(--shadow); }
.faq-item .faq-p { padding: 0 28px 22px; color: var(--text-light); font-size: 15.5px; line-height: 1.7; }
/* CTA */
.cta-section { position: relative; background: linear-gradient(135deg, rgba(15, 29, 46, 0.85), rgba(26, 75, 140, 0.88)), url('/assets/images/backpic/back-2.png') center/cover no-repeat; padding: 100px 0; text-align: center; color: #fff; }
.cta-section h2 { color: #fff; font-size: 36px; font-weight: 800; margin-bottom: 14px; }
.cta-section p { color: rgba(255, 255, 255, 0.8); font-size: 17px; max-width: 600px; margin: 0 auto 34px; }
.cta-tags { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-bottom: 34px; }
.cta-tags span { background: rgba(255, 255, 255, 0.12); border: 1px solid rgba(255, 255, 255, 0.2); padding: 7px 18px; border-radius: 30px; font-size: 14px; color: rgba(255, 255, 255, 0.9); }
.cta-btn { display: inline-flex; align-items: center; gap: 10px; background: var(--accent); color: #fff; border-radius: 40px; padding: 16px 44px; font-size: 17px; font-weight: 700; box-shadow: 0 14px 40px rgba(230, 57, 70, 0.4); transition: var(--transition); }
.cta-btn:hover { background: #fff; color: var(--accent); transform: translateY(-3px); box-shadow: 0 18px 48px rgba(255, 255, 255, 0.2); }
/* Footer */
.site-footer { background: var(--dark); color: rgba(255, 255, 255, 0.65); padding: 80px 0 0; margin-top: 0; }
.footer-top { display: flex; flex-wrap: wrap; gap: 48px; padding-bottom: 50px; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
.footer-brand-col { flex: 1 1 280px; }
.footer-brand-col .brand-logo { color: #fff; margin-bottom: 16px; }
.footer-brand-col .brand-logo i { color: var(--accent); }
.footer-brand-col p { font-size: 14.5px; color: rgba(255, 255, 255, 0.55); max-width: 320px; }
.footer-col { flex: 1 1 160px; }
.footer-col h5 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 20px; }
.footer-col a { display: block; padding: 5px 0; color: rgba(255, 255, 255, 0.6); font-size: 14.5px; transition: var(--transition); }
.footer-col a:hover { color: #ffd166; padding-left: 4px; }
.footer-bottom { padding: 24px 0; text-align: center; font-size: 14px; color: rgba(255, 255, 255, 0.4); border-top: 1px solid rgba(255, 255, 255, 0.06); }
.footer-bottom a { color: rgba(255, 255, 255, 0.5); }
/* Buttons */
.btn-brand { display: inline-flex; align-items: center; gap: 8px; background: var(--primary); color: #fff !important; border: none; border-radius: 40px; padding: 14px 34px; font-size: 15.5px; font-weight: 600; transition: var(--transition); box-shadow: 0 8px 22px rgba(26, 75, 140, 0.28); }
.btn-brand:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(26, 75, 140, 0.38); }
.btn-outline-brand { display: inline-flex; align-items: center; gap: 8px; background: transparent; color: var(--primary); border: 2px solid var(--primary); border-radius: 40px; padding: 12px 32px; font-size: 15px; font-weight: 600; transition: var(--transition); }
.btn-outline-brand:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
/* Scroll to top */
.scroll-top { position: fixed; bottom: 32px; right: 32px; width: 48px; height: 48px; border-radius: 50%; background: var(--primary); color: #fff; border: none; font-size: 18px; display: flex; align-items: center; justify-content: center; cursor: pointer; box-shadow: 0 10px 32px rgba(26, 75, 140, 0.4); opacity: 0; visibility: hidden; transition: var(--transition); z-index: 999; }
.scroll-top.show { opacity: 1; visibility: visible; }
.scroll-top:hover { background: var(--accent); transform: translateY(-4px); }
/* Responsive */
@media (max-width: 991.98px) {
  .navbar-left, .navbar-right { display: none !important; }
  .custom-navbar .container { justify-content: space-between; }
  .section { padding: 70px 0; }
  .hero { min-height: auto; padding: 70px 0; }
  .hero h1 { font-size: 34px; }
  .hero-illustration { margin-top: 40px; }
  .stats-section { margin-top: -50px; }
  .stats-card { padding: 28px 18px; margin-bottom: 16px; }
  .process-step { margin-bottom: 20px; }
  .footer-top { flex-direction: column; gap: 32px; }
}
@media (max-width: 767.98px) {
  .section { padding: 60px 0; }
  .section-title { font-size: 28px; }
  .hero h1 { font-size: 28px; }
  .hero-sub { font-size: 16px; }
  .hero-points { gap: 10px; flex-direction: column; align-items: flex-start; }
  .news-item { flex-wrap: wrap; gap: 14px; padding: 18px 16px; }
  .news-item-date { min-width: 72px; }
  .news-item-content p { white-space: normal; }
  .feature-float-badge { left: 10px; bottom: 10px; padding: 12px 16px; }
  .feature-item { gap: 12px; }
  .faq-item summary { padding: 18px 20px; font-size: 15.5px; }
  .faq-item .faq-p { padding: 0 20px 18px; }
  .cta-section h2 { font-size: 26px; }
  .scroll-top { bottom: 20px; right: 20px; width: 42px; height: 42px; font-size: 16px; }
}
@media (max-width: 520px) {
  .container { padding-left: 18px; padding-right: 18px; }
  .brand-logo { font-size: 19px; }
  .brand-logo i { font-size: 24px; }
  .hero h1 { font-size: 24px; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .stats-card .num { font-size: 30px; }
  .process-step { padding: 24px 16px; }
  .news-item { flex-direction: column; align-items: flex-start; }
  .news-item-link { display: none; }
}

/* roulang page: category1 */
:root {
  --primary: #c8102e;
  --primary-dark: #9a0d24;
  --primary-soft: #fbe9eb;
  --secondary: #1a2a3a;
  --secondary-light: #8a4fff;
  --accent: #ff6b35;
  --bg: #f6f7fb;
  --bg-alt: #ffffff;
  --bg-dark: #0e1525;
  --text: #1c2431;
  --text-light: #5b6472;
  --text-mute: #8a93a3;
  --border: #e5e9f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 30px rgba(17,27,45,.08);
  --shadow-hover: 0 18px 40px rgba(17,27,45,.14);
  --transition: .3s cubic-bezier(.4,0,.2,1);
  --font-main: "PingFang SC","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-main); background: var(--bg); color: var(--text); line-height: 1.75; overflow-x: hidden; }
a { text-decoration: none; color: inherit; transition: color .2s; }
img { max-width: 100%; height: auto; display: block; border: 0; }
button { font-family: inherit; }

/* ===== Header / Nav ===== */
.custom-navbar {
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(229,233,240,.8);
  padding: 12px 0;
  position: relative;
  z-index: 1000;
  transition: box-shadow var(--transition);
}
.custom-navbar.scrolled { box-shadow: 0 6px 30px rgba(17,27,45,.08); }
.navbar-left, .navbar-right { display: flex; align-items: center; gap: 4px; }
.navbar-left { justify-content: flex-end; }
.navbar-left .nav-link, .navbar-right .nav-link {
  font-size: 15px; font-weight: 500; color: var(--text);
  padding: 8px 16px; border-radius: 30px; position: relative;
  white-space: nowrap;
}
.navbar-left .nav-link:hover, .navbar-right .nav-link:hover { color: var(--primary); background: var(--primary-soft); }
.navbar-left .nav-link.active, .navbar-right .nav-link.active { color: #fff; background: var(--primary); font-weight: 600; }
.brand-logo { display: inline-flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 700; color: var(--text) !important; }
.brand-logo i { color: var(--primary); font-size: 26px; }
.brand-logo span { display: flex; flex-direction: column; line-height: 1.2; }
.brand-logo em { font-style: normal; font-weight: 300; font-size: 13px; color: var(--text-light); letter-spacing: .5px; }
.btn-brand-nav {
  background: var(--primary); color: #fff; border: none;
  padding: 8px 20px; border-radius: 30px; font-size: 14px; font-weight: 600;
  transition: all var(--transition); display: inline-block;
}
.btn-brand-nav:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(200,16,46,.3); }
.navbar-toggler { border: none; background: transparent; padding: 6px; width: 44px; height: 44px; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px; }
.toggler-bar { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 4px; transition: all .3s; }
.navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(2) { opacity: 0; }
.navbar-toggler[aria-expanded="true"] .toggler-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
#mainNav { border-top: 1px solid var(--border); margin-top: 12px; padding-top: 10px; }
#mainNav .nav-link { text-align: center; padding: 10px; border-radius: 10px; font-size: 15px; font-weight: 500; color: var(--text); }
#mainNav .nav-link:hover, #mainNav .nav-link.active { background: var(--primary-soft); color: var(--primary); }
#mainNav .btn-brand-nav { display: block; text-align: center; margin: 8px auto; width: fit-content; }

/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  padding: 90px 0 70px;
  background: linear-gradient(135deg, #0e1525 0%, #1a2a3a 55%, #243b52 100%);
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover; background-position: center;
  opacity: .18;
}
.page-hero::after {
  content: '';
  position: absolute; bottom: -80px; right: -80px; width: 320px; height: 320px;
  background: radial-gradient(circle, rgba(200,16,46,.35) 0%, transparent 70%);
  border-radius: 50%;
}
.page-hero .container { position: relative; z-index: 2; }
.hero-breadcrumb { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(255,255,255,.65); background: rgba(255,255,255,.1); padding: 6px 16px; border-radius: 30px; margin-bottom: 24px; }
.hero-breadcrumb a { color: rgba(255,255,255,.85); }
.hero-breadcrumb a:hover { color: #fff; }
.page-hero h1 { color: #fff; font-size: 44px; font-weight: 800; line-height: 1.3; margin-bottom: 16px; letter-spacing: -1px; }
.page-hero h1 span { color: #ff8a7a; }
.page-hero p.lead { color: rgba(255,255,255,.85); font-size: 18px; max-width: 700px; margin-bottom: 28px; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-badge { background: rgba(255,255,255,.12); color: #fff; padding: 8px 18px; border-radius: 30px; font-size: 13px; font-weight: 500; backdrop-filter: blur(6px); border: 1px solid rgba(255,255,255,.15); }

/* ===== Sections ===== */
.section-block { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--bg-dark); color: #fff; }
.section-head { margin-bottom: 48px; }
.section-tag {
  display: inline-block; background: var(--primary-soft); color: var(--primary);
  padding: 5px 14px; border-radius: 30px; font-size: 13px; font-weight: 600;
  margin-bottom: 14px; letter-spacing: .5px;
}
.section-head h2 { font-size: 32px; font-weight: 700; color: var(--text); margin-bottom: 10px; letter-spacing: -.5px; }
.section-alt .section-head h2 { color: #fff; }
.section-dark .section-head h2 { color: #fff; }
.section-head p.desc { color: var(--text-light); max-width: 620px; }
.section-dark .section-head p.desc { color: rgba(255,255,255,.7); }

/* ===== Cards ===== */
.guide-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px 28px; height: 100%; transition: all var(--transition); position: relative; overflow: hidden;
}
.guide-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0; transition: opacity var(--transition);
}
.guide-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-hover); border-color: transparent; }
.guide-card:hover::before { opacity: 1; }
.guide-card .card-icon {
  width: 56px; height: 56px; border-radius: 14px; background: var(--primary-soft);
  display: flex; align-items: center; justify-content: center; font-size: 24px; color: var(--primary); margin-bottom: 20px;
}
.guide-card .card-num {
  position: absolute; top: 24px; right: 24px; font-size: 14px; font-weight: 700;
  color: var(--text-mute); opacity: .4;
}
.guide-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 12px; }
.guide-card p { color: var(--text-light); font-size: 14px; margin-bottom: 16px; }
.guide-card-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag-mini {
  background: #f1f3f8; color: var(--text-light); font-size: 12px;
  padding: 3px 10px; border-radius: 20px; font-weight: 500;
}

/* Cover card */
.cover-card {
  background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border);
  height: 100%; display: flex; flex-direction: column; transition: all var(--transition);
}
.cover-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.cover-card .cover-img { position: relative; aspect-ratio: 16/9; overflow: hidden; }
.cover-card .cover-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.cover-card:hover .cover-img img { transform: scale(1.05); }
.cover-card .cover-tag {
  position: absolute; top: 12px; left: 12px; background: rgba(200,16,46,.9); color: #fff;
  font-size: 12px; padding: 3px 12px; border-radius: 20px; font-weight: 600; backdrop-filter: blur(4px);
}
.cover-card .cover-body { padding: 22px; display: flex; flex-direction: column; flex: 1; }
.cover-card .cover-body h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; line-height: 1.4; }
.cover-card .cover-body p { color: var(--text-light); font-size: 14px; margin-bottom: 14px; flex: 1; }
.cover-card .cover-meta { display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: var(--text-mute); }

/* ===== Checklist / Steps ===== */
.steps-section { position: relative; }
.step-item {
  position: relative; padding-left: 72px; margin-bottom: 40px;
}
.step-item::before {
  content: ''; position: absolute; left: 24px; top: 60px; bottom: -40px; width: 2px;
  background: linear-gradient(to bottom, var(--primary) 0%, rgba(200,16,46,.1) 100%);
}
.step-item:last-child::before { display: none; }
.step-num {
  position: absolute; left: 0; top: 0; width: 48px; height: 48px; border-radius: 50%;
  background: var(--primary); color: #fff; font-weight: 700; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 20px rgba(200,16,46,.3); z-index: 1;
}
.step-item h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.step-item p { color: var(--text-light); max-width: 560px; }

/* ===== Data chips ===== */
.data-row { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
.data-chip {
  background: #fff; border-radius: var(--radius); padding: 28px 20px; text-align: center;
  border: 1px solid var(--border); transition: all var(--transition);
}
.data-chip:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.data-chip .num { font-size: 32px; font-weight: 800; color: var(--primary); line-height: 1.2; }
.data-chip .label { font-size: 13px; color: var(--text-light); margin-top: 6px; }

/* ===== FAQ ===== */
.faq-item {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 22px 26px; margin-bottom: 14px; transition: box-shadow var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow); }
.faq-item .faq-q { font-size: 16px; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.faq-item .faq-q i { color: var(--primary); font-size: 14px; transition: transform .3s; }
.faq-item.open .faq-q i { transform: rotate(180deg); }
.faq-item .faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; color: var(--text-light); font-size: 14px; }
.faq-item.open .faq-a { max-height: 300px; padding-top: 12px; }

/* ===== CTA ===== */
.cta-section {
  padding: 70px 0; background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; top: -60px; right: -60px; width: 240px; height: 240px;
  border-radius: 50%; background: rgba(255,255,255,.08);
}
.cta-section::after {
  content: ''; position: absolute; bottom: -80px; left: 10%; width: 200px; height: 200px;
  border-radius: 50%; background: rgba(255,255,255,.06);
}
.cta-box { text-align: center; position: relative; z-index: 2; }
.cta-box h2 { color: #fff; font-size: 32px; font-weight: 800; margin-bottom: 12px; }
.cta-box p { color: rgba(255,255,255,.85); max-width: 600px; margin: 0 auto 28px; font-size: 16px; }
.btn-cta-white {
  background: #fff; color: var(--primary); border: none; padding: 12px 36px;
  border-radius: 30px; font-size: 16px; font-weight: 700;
  transition: all var(--transition); display: inline-block;
}
.btn-cta-white:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(0,0,0,.2); color: var(--primary-dark); }

/* ===== Comparison table ===== */
.compare-table-wrap {
  background: #fff; border-radius: var(--radius); border: 1px solid var(--border);
  overflow-x: auto; box-shadow: var(--shadow);
}
.compare-table { width: 100%; border-collapse: collapse; min-width: 640px; }
.compare-table th, .compare-table td { padding: 16px 20px; text-align: center; font-size: 14px; }
.compare-table th { background: var(--bg-dark); color: #fff; font-weight: 600; }
.compare-table td { border-bottom: 1px solid var(--border); color: var(--text-light); }
.compare-table tr:last-child td { border-bottom: none; }
.compare-table tr:hover td { background: #fafbfd; }
.compare-table .highlight { color: var(--primary); font-weight: 600; }

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-dark); color: rgba(255,255,255,.75); padding: 64px 0 0;
}
.site-footer .footer-top {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 50px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.site-footer .brand-logo { color: #fff !important; margin-bottom: 14px; }
.site-footer .brand-logo em { color: rgba(255,255,255,.6); }
.footer-brand-col p { font-size: 14px; color: rgba(255,255,255,.55); max-width: 320px; line-height: 1.8; }
.site-footer .footer-col h5 {
  color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 18px; position: relative; padding-bottom: 10px;
}
.site-footer .footer-col h5::after {
  content: ''; position: absolute; bottom: 0; left: 0; width: 28px; height: 3px;
  background: var(--primary); border-radius: 4px;
}
.site-footer .footer-col a {
  display: block; padding: 5px 0; font-size: 14px; color: rgba(255,255,255,.55);
  transition: all .25s;
}
.site-footer .footer-col a:hover { color: #fff; padding-left: 6px; }
.footer-bottom {
  padding: 24px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,.4);
}

/* ===== Responsive ===== */
@media (max-width: 991.98px) {
  .navbar-left, .navbar-right { display: none !important; }
  .custom-navbar .navbar-brand { margin: 0 auto; }
  .page-hero h1 { font-size: 32px; }
  .section-block { padding: 60px 0; }
  .data-row { grid-template-columns: repeat(2,1fr); }
  .site-footer .footer-top { grid-template-columns: 1fr 1fr; gap: 30px; }
}
@media (max-width: 767.98px) {
  .page-hero { padding: 60px 0 50px; }
  .page-hero h1 { font-size: 27px; }
  .page-hero p.lead { font-size: 15px; }
  .section-head h2 { font-size: 26px; }
  .guide-card { padding: 24px 20px; }
  .step-item { padding-left: 58px; }
  .step-item::before { left: 22px; }
  .step-num { width: 44px; height: 44px; font-size: 16px; }
  .cta-box h2 { font-size: 26px; }
}
@media (max-width: 575.98px) {
  .hero-badges { gap: 8px; }
  .hero-badge { font-size: 12px; padding: 6px 12px; }
  .data-row { grid-template-columns: 1fr 1fr; gap: 12px; }
  .site-footer .footer-top { grid-template-columns: 1fr; gap: 24px; }
  .section-block { padding: 48px 0; }
  .section-head { margin-bottom: 32px; }
  .compare-table th, .compare-table td { padding: 12px 14px; font-size: 13px; }
}

/* roulang page: article */
:root {
    --primary: #0e1a3a;
    --primary-light: #16264e;
    --primary-dark: #091125;
    --accent: #e6a63a;
    --accent-hover: #d08f2a;
    --accent-soft: rgba(230, 166, 58, 0.12);
    --bg: #f3f6fb;
    --white: #ffffff;
    --text: #17203a;
    --text-muted: #64748b;
    --border: #e6eaf2;
    --radius: 18px;
    --radius-sm: 10px;
    --shadow-sm: 0 2px 10px rgba(14, 26, 58, 0.06);
    --shadow: 0 10px 30px rgba(14, 26, 58, 0.08);
    --shadow-lg: 0 20px 50px rgba(14, 26, 58, 0.14);
    --transition: all 0.3s ease;
    --nav-h: 76px;
}
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html { scroll-behavior: smooth; }
body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.75;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
img { max-width: 100%; display: block; }
button:focus, a:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #eef1f7; }
::-webkit-scrollbar-thumb { background: #aab4c8; border-radius: 4px; }

/* ===== 导航 ===== */
.custom-navbar {
    background: rgba(14, 26, 58, 0.96);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    padding: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    position: sticky;
    top: 0;
    z-index: 1050;
    min-height: var(--nav-h);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}
.custom-navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: var(--nav-h);
    position: relative;
}
.navbar-left, .navbar-right {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
}
.navbar-left { justify-content: flex-start; }
.navbar-right { justify-content: flex-end; }
.nav-link {
    display: inline-flex;
    align-items: center;
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 10px 18px;
    border-radius: 30px;
    transition: var(--transition);
    position: relative;
    text-decoration: none;
    letter-spacing: 0.02em;
}
.nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
    text-decoration: none;
}
.nav-link.active {
    color: #fff;
    background: rgba(255, 255, 255, 0.12);
}
.nav-link.active::after {
    content: "";
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    background: var(--accent);
    border-radius: 3px;
}
.brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.02em;
    padding: 8px 10px;
    white-space: nowrap;
    transition: var(--transition);
}
.brand-logo i {
    font-size: 1.6rem;
    color: var(--accent);
}
.brand-logo em {
    font-style: normal;
    color: var(--accent);
    font-weight: 600;
}
.brand-logo:hover { color: #fff; text-decoration: none; }
.btn-brand-nav {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, var(--accent), #f7c05c);
    color: var(--primary-dark);
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 30px;
    padding: 8px 20px;
    margin-left: 8px;
    text-decoration: none;
    box-shadow: 0 4px 14px rgba(230, 166, 58, 0.3);
    transition: var(--transition);
    border: none;
    letter-spacing: 0.02em;
}
.btn-brand-nav:hover {
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 22px rgba(230, 166, 58, 0.4);
    text-decoration: none;
}
.navbar-toggler {
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    padding: 8px 12px;
    background: transparent;
    display: flex;
    flex-direction: column;
    gap: 4px;
    width: 46px;
    height: 42px;
    align-items: center;
    justify-content: center;
}
.toggler-bar {
    width: 22px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    display: block;
}
.navbar-toggler:hover { background: rgba(255, 255, 255, 0.1); }
#mainNav {
    background: rgba(10, 18, 36, 0.98);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 16px;
    border-radius: 0 0 var(--radius) var(--radius);
}
.mobile-nav-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.85);
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 0.95rem;
    text-decoration: none;
    transition: var(--transition);
}
.mobile-nav-link:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    text-decoration: none;
}
.mobile-nav-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent), #f7c05c);
    color: var(--primary-dark);
    font-weight: 600;
    padding: 12px 16px;
    border-radius: 12px;
    margin-top: 8px;
    text-decoration: none;
    transition: var(--transition);
}
.mobile-nav-btn:hover {
    color: var(--primary-dark);
    text-decoration: none;
    transform: translateY(-2px);
}

/* ===== 文章 Hero ===== */
.article-hero {
    background: linear-gradient(150deg, rgba(14, 26, 58, 0.94), rgba(14, 26, 58, 0.78)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    padding: 90px 0 80px;
    color: #fff;
    position: relative;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.breadcrumb-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 24px;
    letter-spacing: 0.02em;
}
.breadcrumb-nav a {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    transition: var(--transition);
}
.breadcrumb-nav a:hover { color: var(--accent); }
.breadcrumb-nav .sep { color: rgba(255, 255, 255, 0.3); }
.article-cat-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--accent), #f7c05c);
    color: var(--primary-dark);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 6px 16px;
    border-radius: 30px;
    margin-bottom: 20px;
    letter-spacing: 0.05em;
    box-shadow: 0 4px 14px rgba(230, 166, 58, 0.3);
}
.article-hero h1 {
    font-size: 2.4rem;
    font-weight: 800;
    line-height: 1.35;
    color: #fff;
    max-width: 820px;
    margin-bottom: 16px;
    letter-spacing: 0.01em;
}
.article-hero-desc {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.7);
    max-width: 760px;
    line-height: 1.8;
    margin-bottom: 24px;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.65);
}
.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}
.article-meta i { color: var(--accent); }

/* ===== 主内容区 ===== */
.article-main {
    padding: 60px 0 80px;
    background: var(--bg);
}
.article-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 44px;
    border: 1px solid rgba(230, 234, 242, 0.6);
}
.article-body { font-size: 1.02rem; }
.article-body h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary);
    margin: 2.2rem 0 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--border);
    line-height: 1.4;
}
.article-body h2:first-child { margin-top: 0; }
.article-body h3 {
    font-size: 1.28rem;
    font-weight: 600;
    color: var(--primary);
    margin: 1.6rem 0 0.7rem;
    line-height: 1.4;
}
.article-body p {
    margin-bottom: 1.25rem;
    line-height: 1.85;
    color: #2d3a52;
}
.article-body ul,
.article-body ol {
    margin-bottom: 1.25rem;
    padding-left: 1.5rem;
    color: #2d3a52;
}
.article-body ul li,
.article-body ol li { margin-bottom: 0.45rem; }
.article-body img {
    max-width: 100%;
    border-radius: var(--radius);
    margin: 1.6rem auto;
    box-shadow: var(--shadow-sm);
}
.article-body blockquote {
    border-left: 4px solid var(--accent);
    background: var(--accent-soft);
    padding: 1rem 1.5rem;
    margin: 1.6rem 0;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--primary);
    font-size: 0.98rem;
    line-height: 1.7;
}
.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.6rem 0;
    font-size: 0.92rem;
}
.article-body table th,
.article-body table td {
    border: 1px solid var(--border);
    padding: 10px 14px;
    text-align: left;
}
.article-body table th {
    background: #f8f9fc;
    color: var(--primary);
    font-weight: 600;
}

/* 分享 */
.article-share {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-top: 30px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}
.share-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-right: 4px;
}
.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: #f0f2f7;
    color: var(--text);
    font-size: 0.95rem;
    transition: var(--transition);
    text-decoration: none;
}
.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
    text-decoration: none;
}
.share-btn.wechat { background: #e0f3e8; color: #16a34a; }
.share-btn.weibo { background: #fde8e8; color: #dc2626; }
.share-btn.qq { background: #dbeafe; color: #2563eb; }
.share-btn.copy { background: #fdf3e3; color: #d08f2a; }
.share-btn.wechat:hover { background: #bde8cd; }
.share-btn.weibo:hover { background: #f8caca; }
.share-btn.qq:hover { background: #bfdbfe; }
.share-btn.copy:hover { background: #f7dfb6; }

/* 未找到 */
.not-found-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 80px 40px;
    text-align: center;
    border: 1px solid var(--border);
}
.not-found-card i {
    font-size: 3.4rem;
    color: var(--accent);
    margin-bottom: 20px;
}
.not-found-card h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
}
.not-found-card p {
    color: var(--text-muted);
    margin-bottom: 24px;
}
.not-found-card .btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border: none;
    border-radius: 30px;
    padding: 10px 32px;
    font-weight: 600;
    box-shadow: 0 4px 14px rgba(14, 26, 58, 0.2);
    transition: var(--transition);
}
.not-found-card .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(14, 26, 58, 0.3);
}

/* ===== 侧边栏 ===== */
.article-sidebar { position: sticky; top: 100px; }
.sidebar-widget {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 26px;
    margin-bottom: 24px;
    border: 1px solid rgba(230, 234, 242, 0.7);
    transition: var(--transition);
}
.sidebar-widget:hover { box-shadow: var(--shadow); }
.widget-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border);
    display: flex;
    align-items: center;
    gap: 8px;
}
.widget-title i { color: var(--accent); }
.sidebar-post {
    display: flex;
    gap: 12px;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #f0f2f7;
    text-decoration: none;
    transition: var(--transition);
}
.sidebar-post:last-of-type { border-bottom: none; padding-bottom: 0; }
.sidebar-post:hover { text-decoration: none; transform: translateX(4px); }
.sidebar-post-thumb {
    width: 56px;
    height: 48px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
    background: #eef1f7;
}
.sidebar-post-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.sidebar-post-info {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
}
.sidebar-post-title {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.sidebar-post-title:hover { color: var(--accent); }
.sidebar-post-date {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 5px;
}
.widget-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.widget-links a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 12px;
    color: var(--text);
    font-size: 0.92rem;
    font-weight: 500;
    background: #f7f9fc;
    text-decoration: none;
    transition: var(--transition);
}
.widget-links a i {
    color: var(--accent);
    font-size: 0.75rem;
}
.widget-links a:hover {
    background: var(--accent-soft);
    color: var(--primary);
    transform: translateX(4px);
    text-decoration: none;
}
.safety-tips {
    border: 2px solid rgba(230, 166, 58, 0.25);
    background: linear-gradient(135deg, #fffcf5, #fff8ec);
}
.safety-tips .widget-title { border-bottom-color: rgba(230, 166, 58, 0.3); }
.safety-tips p {
    font-size: 0.88rem;
    color: #5b4a2a;
    line-height: 1.7;
    margin: 0;
}

/* ===== 相关推荐 ===== */
.related-section {
    padding: 80px 0;
    background: var(--white);
    border-top: 1px solid var(--border);
}
.section-header {
    text-align: center;
    margin-bottom: 44px;
}
.section-tag {
    display: inline-block;
    background: var(--accent-soft);
    color: var(--accent-hover);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 5px 18px;
    border-radius: 30px;
    letter-spacing: 0.08em;
    margin-bottom: 14px;
}
.section-header h2 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 10px;
}
.section-header p {
    color: var(--text-muted);
    max-width: 560px;
    margin: 0 auto;
    font-size: 0.95rem;
}
.related-card {
    display: block;
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100%;
    text-decoration: none;
    color: var(--text);
    border: 1px solid rgba(230, 234, 242, 0.6);
}
.related-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
    color: var(--text);
}
.card-thumb {
    aspect-ratio: 16/10;
    overflow: hidden;
    position: relative;
    background: #eef1f7;
}
.card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.related-card:hover .card-thumb img { transform: scale(1.06); }
.related-card .card-body {
    padding: 20px 22px 22px;
}
.related-card h3 {
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 8px;
    color: var(--text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: var(--transition);
}
.related-card:hover h3 { color: var(--accent-hover); }
.related-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.related-card .card-meta {
    font-size: 0.78rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ===== CTA ===== */
.cta-section {
    background: linear-gradient(120deg, rgba(14, 26, 58, 0.97), rgba(22, 38, 78, 0.88)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
    padding: 80px 0;
    color: #fff;
    text-align: center;
    position: relative;
}
.cta-section h2 {
    font-size: 2.1rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 14px;
}
.cta-section p {
    color: rgba(255, 255, 255, 0.7);
    max-width: 600px;
    margin: 0 auto 30px;
    font-size: 1rem;
}
.cta-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    justify-content: center;
}
.btn-accent {
    background: linear-gradient(135deg, var(--accent), #f7c05c);
    color: var(--primary-dark);
    border: none;
    border-radius: 30px;
    padding: 12px 36px;
    font-weight: 600;
    font-size: 0.95rem;
    box-shadow: 0 6px 20px rgba(230, 166, 58, 0.35);
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.btn-accent:hover {
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(230, 166, 58, 0.45);
    text-decoration: none;
}
.btn-outline-light {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 30px;
    padding: 10px 34px;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
    color: #fff;
    transform: translateY(-2px);
    text-decoration: none;
}

/* ===== FAQ ===== */
.faq-section {
    padding: 80px 0;
    background: var(--bg);
}
.faq-section .accordion {
    max-width: 780px;
    margin: 0 auto;
}
.faq-section .accordion-item {
    background: var(--white);
    border: 1px solid rgba(230, 234, 242, 0.8);
    border-radius: 14px !important;
    margin-bottom: 14px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition);
}
.faq-section .accordion-item:hover { box-shadow: var(--shadow); }
.faq-section .accordion-button {
    font-size: 0.98rem;
    font-weight: 600;
    color: var(--primary);
    background: var(--white);
    padding: 18px 24px;
    border: none;
    box-shadow: none;
    transition: var(--transition);
}
.faq-section .accordion-button:not(.collapsed) {
    background: var(--accent-soft);
    color: var(--primary);
    box-shadow: none;
}
.faq-section .accordion-button:focus {
    box-shadow: none;
    border-color: transparent;
}
.faq-section .accordion-button::after {
    background-size: 14px;
    color: var(--accent);
}
.faq-section .accordion-body {
    padding: 0 24px 20px;
    color: #4b5873;
    font-size: 0.93rem;
    line-height: 1.75;
    background: var(--white);
}

/* ===== 页脚 ===== */
.site-footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.65);
    padding: 64px 0 0;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}
.footer-top {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 0.8fr 0.8fr;
    gap: 48px;
    padding-bottom: 44px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.footer-brand-col .brand-logo {
    font-size: 1.2rem;
    margin-bottom: 14px;
}
.footer-brand-col p {
    font-size: 0.88rem;
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.5);
    max-width: 300px;
}
.footer-col h5 {
    font-size: 0.95rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 18px;
    letter-spacing: 0.04em;
}
.footer-col a {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.88rem;
    margin-bottom: 10px;
    text-decoration: none;
    transition: var(--transition);
    line-height: 1.5;
}
.footer-col a:hover {
    color: var(--accent);
    transform: translateX(4px);
    text-decoration: none;
}
.footer-bottom {
    padding: 20px 0;
    text-align: center;
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.35);
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}
.footer-bottom p { margin: 0; }

/* ===== 响应式 ===== */
@media (max-width: 1199.98px) {
    .article-hero h1 { font-size: 2.1rem; }
    .section-header h2 { font-size: 1.7rem; }
    .cta-section h2 { font-size: 1.7rem; }
}
@media (max-width: 991.98px) {
    .article-sidebar {
        position: static;
        margin-top: 36px;
    }
    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    .article-hero { padding: 70px 0 60px; }
    .article-hero h1 { font-size: 1.9rem; }
    .article-card { padding: 32px; }
}
@media (max-width: 767.98px) {
    .article-hero { padding: 50px 0 44px; }
    .article-hero h1 { font-size: 1.55rem; }
    .article-hero-desc { font-size: 0.95rem; }
    .article-meta { gap: 12px; flex-direction: column; align-items: flex-start; }
    .article-main { padding: 40px 0 60px; }
    .article-card { padding: 22px; border-radius: 14px; }
    .article-body { font-size: 0.97rem; }
    .article-body h2 { font-size: 1.25rem; }
    .article-body h3 { font-size: 1.1rem; }
    .related-section { padding: 56px 0; }
    .section-header h2 { font-size: 1.4rem; }
    .cta-section { padding: 56px 0; }
    .cta-section h2 { font-size: 1.4rem; }
    .cta-buttons { flex-direction: column; align-items: center; }
    .faq-section { padding: 56px 0; }
    .footer-top { grid-template-columns: 1fr; gap: 28px; }
    .footer-brand-col p { max-width: 100%; }
    .not-found-card { padding: 50px 24px; }
}
@media (max-width: 575.98px) {
    .article-hero h1 { font-size: 1.3rem; }
    .article-share { gap: 8px; }
    .share-label { width: 100%; margin-bottom: 4px; }
    .related-card .card-body { padding: 16px; }
    .section-header p { font-size: 0.88rem; }
    .cta-buttons .btn-accent,
    .cta-buttons .btn-outline-light {
        width: 100%;
        justify-content: center;
    }
}

/* roulang page: category2 */
:root {
            --primary: #0b1e3a;
            --primary-dark: #071426;
            --accent: #00d4ff;
            --accent-soft: #e6f9ff;
            --secondary: #ff6b35;
            --success: #22c58b;
            --bg: #f4f7fb;
            --bg-light: #ffffff;
            --text: #12253e;
            --text-light: #5a6b82;
            --border: #e2e8f2;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 8px 30px rgba(11, 30, 58, .08);
            --shadow-hover: 0 18px 44px rgba(11, 30, 58, .15);
            --transition: .3s cubic-bezier(.4, 0, .2, 1);
            --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 90px;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

        a:hover {
            color: var(--accent);
            opacity: .85;
        }

        button,
        input {
            font-family: inherit;
        }

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

        /* ===== Header / Navbar ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 24px rgba(11, 30, 58, .06);
        }

        .custom-navbar {
            padding: 14px 0;
            min-height: 82px;
        }

        .custom-navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            position: relative;
        }

        .navbar-left,
        .navbar-right {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
        }

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

        .navbar-left {
            justify-content: flex-start;
        }

        .custom-navbar .nav-link {
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            border-radius: 8px;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

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

        .custom-navbar .nav-link.active {
            color: var(--primary);
            font-weight: 700;
            background: linear-gradient(135deg, var(--accent-soft), #d6f4ff);
        }

        .custom-navbar .nav-link.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-size: 18px;
            font-weight: 900;
            color: var(--primary) !important;
            line-height: 1.2;
            white-space: nowrap;
        }

        .brand-logo i {
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), #1b3a6b);
            color: #fff;
            border-radius: 12px;
            font-size: 18px;
            box-shadow: 0 6px 16px rgba(11, 30, 58, .25);
        }

        .brand-logo span {
            font-size: 17px;
            letter-spacing: .5px;
        }

        .brand-logo em {
            font-style: normal;
            color: var(--accent);
            background: linear-gradient(90deg, #00b4db, #00d4ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .btn-brand-nav {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            background: linear-gradient(135deg, var(--accent), #00b4db);
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            border-radius: 50px;
            box-shadow: 0 6px 18px rgba(0, 212, 255, .35);
            transition: all var(--transition);
            white-space: nowrap;
            border: none;
        }

        .btn-brand-nav:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(0, 212, 255, .45);
            color: #fff;
            opacity: 1;
        }

        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 10px;
            width: 44px;
            height: 44px;
            padding: 0;
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            background: #fff;
            box-shadow: 0 2px 8px rgba(11, 30, 58, .06);
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 4px rgba(0, 212, 255, .25);
        }

        .toggler-bar {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition);
        }

        .mobile-nav-panel {
            background: rgba(255, 255, 255, .98);
            border-top: 1px solid var(--border);
            padding: 16px 0 22px;
        }

        .mobile-nav-panel .nav-link {
            display: block;
            padding: 12px 16px;
            color: var(--text);
            font-weight: 500;
            border-radius: 10px;
            border-bottom: 1px solid rgba(226, 232, 242, .6);
        }

        .mobile-nav-panel .nav-link:last-of-type {
            border-bottom: none;
        }

        .mobile-nav-panel .nav-link.active {
            background: var(--accent-soft);
            color: var(--primary);
            font-weight: 700;
        }

        .mobile-nav-panel .btn-brand-nav {
            margin: 16px 16px 0;
            justify-content: center;
            display: flex;
        }

        /* ===== Page Hero ===== */
        .hero-page {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            padding: 90px 0 80px;
            color: #fff;
            isolation: isolate;
        }

        .hero-page::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(7, 20, 38, .92) 10%, rgba(7, 20, 38, .72) 50%, rgba(7, 20, 38, .45) 100%);
            z-index: -1;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 212, 255, .14);
            border: 1px solid rgba(0, 212, 255, .4);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 50px;
            letter-spacing: 1px;
            margin-bottom: 20px;
        }

        .hero-page h1 {
            font-size: clamp(30px, 4.5vw, 48px);
            font-weight: 900;
            line-height: 1.3;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }

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

        .hero-page .hero-desc {
            font-size: 16px;
            line-height: 1.9;
            color: rgba(255, 255, 255, .88);
            max-width: 720px;
            margin-bottom: 30px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 32px;
        }

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent), #00b4db);
            color: #fff;
            font-weight: 700;
            padding: 13px 30px;
            border-radius: 50px;
            box-shadow: 0 8px 24px rgba(0, 212, 255, .4);
            transition: all var(--transition);
            border: none;
        }

        .btn-hero-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(0, 212, 255, .5);
            color: #fff;
        }

        .btn-hero-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .06);
            border: 1.5px solid rgba(255, 255, 255, .5);
            color: #fff;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: 50px;
            transition: all var(--transition);
        }

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

        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            padding-top: 10px;
        }

        .hero-metric-item {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .hero-metric-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: rgba(0, 212, 255, .15);
            border: 1px solid rgba(0, 212, 255, .3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 17px;
        }

        .hero-metric-item .metric-label {
            font-size: 13px;
            color: rgba(255, 255, 255, .7);
        }

        .hero-metric-item .metric-value {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
        }

        .breadcrumb-wrap {
            margin-top: 34px;
            padding-top: 18px;
            border-top: 1px solid rgba(255, 255, 255, .15);
        }

        .breadcrumb-wrap .breadcrumb {
            margin: 0;
            background: transparent;
            padding: 0;
        }

        .breadcrumb-wrap .breadcrumb-item,
        .breadcrumb-wrap .breadcrumb-item a {
            font-size: 13px;
            color: rgba(255, 255, 255, .65);
        }

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

        .breadcrumb-wrap .breadcrumb-item.active {
            color: rgba(255, 255, 255, .9);
        }

        .breadcrumb-wrap .breadcrumb-item+ .breadcrumb-item::before {
            color: rgba(255, 255, 255, .4);
        }

        /* ===== Section Global ===== */
        .section {
            padding: 90px 0;
        }

        .section-alt {
            background: #fff;
        }

        .section-head {
            max-width: 720px;
            margin: 0 auto 50px;
            text-align: center;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent-soft);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            padding: 6px 18px;
            border-radius: 50px;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }

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

        .section-head h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 900;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .section-head p {
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.8;
        }

        .section-divider {
            width: 48px;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), #00b4db);
            border-radius: 4px;
            margin: 14px auto 0;
            display: block;
        }

        /* ===== Score Metrics Cards ===== */
        .metric-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 26px;
            height: 100%;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .metric-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), #00b4db);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }

        .metric-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 212, 255, .3);
        }

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

        .metric-card .icon-box {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 18px;
            background: linear-gradient(135deg, rgba(0, 212, 255, .12), rgba(0, 180, 219, .08));
            color: var(--primary);
            border: 1px solid rgba(0, 212, 255, .2);
        }

        .metric-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .metric-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .metric-score {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text);
        }

        .metric-score .bar {
            flex: 1;
            height: 6px;
            background: #eef2f8;
            border-radius: 6px;
            overflow: hidden;
        }

        .metric-score .bar span {
            display: block;
            height: 100%;
            border-radius: 6px;
            background: linear-gradient(90deg, var(--accent), #00b4db);
        }

        .metric-score .score-num {
            font-weight: 800;
            color: var(--primary);
            min-width: 34px;
            text-align: right;
        }

        /* ===== Platform Ranking Cards ===== */
        .platform-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            transition: all var(--transition);
            position: relative;
        }

        .platform-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 212, 255, .35);
        }

        .platform-card .cover-wrap {
            position: relative;
            height: 195px;
            overflow: hidden;
        }

        .platform-card .cover-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

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

        .platform-card .cover-wrap::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 30, 58, .55), transparent 60%);
        }

        .platform-card .score-badge {
            position: absolute;
            top: 14px;
            right: 14px;
            z-index: 2;
            background: rgba(11, 30, 58, .85);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, .2);
            color: #fff;
            border-radius: 50px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 6px;
        }

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

        .platform-card .rank-tag {
            position: absolute;
            bottom: 14px;
            left: 14px;
            z-index: 2;
            background: linear-gradient(135deg, var(--secondary), #ff8a5c);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 50px;
            letter-spacing: .5px;
        }

        .platform-card .card-body {
            padding: 22px 24px 24px;
        }

        .platform-card .card-body h3 {
            font-size: 19px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .platform-card .platform-desc {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .platform-card .feature-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 16px;
        }

        .platform-card .feature-tags span {
            background: #f0f5fb;
            color: var(--text);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 6px;
            border: 1px solid #e2e8f2;
        }

        .platform-card .feature-tags span i {
            color: var(--accent);
            margin-right: 4px;
        }

        .platform-stats {
            display: flex;
            gap: 16px;
            border-top: 1px solid var(--border);
            padding-top: 14px;
            margin-bottom: 16px;
        }

        .platform-stats .stat {
            flex: 1;
            text-align: center;
        }

        .platform-stats .stat .value {
            font-size: 18px;
            font-weight: 800;
            color: var(--primary);
            display: block;
        }

        .platform-stats .stat .label {
            font-size: 12px;
            color: var(--text-light);
        }

        .btn-card {
            display: block;
            text-align: center;
            background: linear-gradient(135deg, var(--primary), #1b3a6b);
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            padding: 11px 20px;
            border-radius: 50px;
            transition: all var(--transition);
            border: none;
            width: 100%;
        }

        .btn-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(11, 30, 58, .3);
            color: #fff;
            background: linear-gradient(135deg, #152c4e, #214680);
        }

        .btn-card-outline {
            display: block;
            text-align: center;
            background: transparent;
            border: 1.5px solid var(--border);
            color: var(--text);
            font-weight: 600;
            font-size: 14px;
            padding: 10px 20px;
            border-radius: 50px;
            transition: all var(--transition);
            width: 100%;
        }

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

        /* ===== Compare Table ===== */
        .compare-wrap {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            overflow: hidden;
        }

        .table-responsive {
            margin: 0;
        }

        .compare-table {
            width: 100%;
            min-width: 640px;
            border-collapse: collapse;
            margin: 0;
            font-size: 14px;
        }

        .compare-table thead th {
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            padding: 14px 18px;
            white-space: nowrap;
            border: none;
            text-align: center;
            font-size: 14px;
        }

        .compare-table thead th:first-child {
            text-align: left;
            border-radius: 0;
        }

        .compare-table tbody td {
            padding: 14px 18px;
            text-align: center;
            border-bottom: 1px solid #edf1f7;
            color: var(--text);
            white-space: nowrap;
        }

        .compare-table tbody tr:last-child td {
            border-bottom: none;
        }

        .compare-table tbody tr:hover td {
            background: #f8fbff;
        }

        .compare-table tbody td:first-child {
            text-align: left;
            font-weight: 600;
            color: var(--primary);
            white-space: normal;
        }

        .compare-table .star {
            color: #f7b731;
            letter-spacing: 2px;
        }

        .compare-table .star-mute {
            color: #dde3ec;
            letter-spacing: 2px;
        }

        .compare-table .tag-success {
            background: rgba(34, 197, 139, .12);
            color: #1a9e6e;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 50px;
            font-size: 13px;
        }

        .compare-table .tag-warn {
            background: rgba(255, 107, 53, .1);
            color: #e05a25;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 50px;
            font-size: 13px;
        }

        /* ===== Process Steps ===== */
        .process-section {
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat fixed;
            position: relative;
            isolation: isolate;
            color: #fff;
        }

        .process-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(7, 20, 38, .9);
            z-index: -1;
        }

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

        .process-section .section-head p {
            color: rgba(255, 255, 255, .75);
        }

        .process-section .section-tag {
            background: rgba(0, 212, 255, .14);
            color: var(--accent);
            border: 1px solid rgba(0, 212, 255, .3);
        }

        .process-step {
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius);
            padding: 32px 24px;
            height: 100%;
            text-align: center;
            transition: all var(--transition);
            position: relative;
            backdrop-filter: blur(4px);
        }

        .process-step:hover {
            background: rgba(255, 255, 255, .1);
            border-color: rgba(0, 212, 255, .35);
            transform: translateY(-4px);
        }

        .process-step .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), #00b4db);
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 8px 20px rgba(0, 212, 255, .3);
        }

        .process-step .step-icon {
            font-size: 30px;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .process-step h4 {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 13px;
            color: rgba(255, 255, 255, .7);
            line-height: 1.7;
        }

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

        .faq-heading {
            position: sticky;
            top: 110px;
        }

        .faq-heading .section-tag {
            margin-bottom: 8px;
        }

        .faq-heading h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 900;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .faq-heading p {
            color: var(--text-light);
            font-size: 15px;
        }

        .faq-heading .contact-quick {
            margin-top: 24px;
            background: var(--accent-soft);
            border-radius: var(--radius);
            padding: 20px;
            border: 1px solid rgba(0, 212, 255, .2);
        }

        .faq-heading .contact-quick h6 {
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .faq-heading .contact-quick p {
            font-size: 13px;
            color: var(--text-light);
            margin: 0;
        }

        .accordion {
            --bs-accordion-border-color: var(--border);
            --bs-accordion-border-radius: var(--radius);
            --bs-accordion-bg: #fff;
            --bs-accordion-active-bg: #f8fbff;
            --bs-accordion-active-color: var(--primary);
            --bs-accordion-btn-color: var(--text);
            --bs-accordion-btn-focus-box-shadow: 0 0 0 4px rgba(0, 212, 255, .15);
        }

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

        .accordion-item:hover {
            box-shadow: var(--shadow);
        }

        .accordion-button {
            font-weight: 700;
            font-size: 15px;
            color: var(--text);
            padding: 18px 22px;
            background: #fff;
        }

        .accordion-button:not(.collapsed) {
            background: #f8fbff;
            color: var(--primary);
            box-shadow: none;
        }

        .accordion-button::after {
            background-size: 16px;
            filter: opacity(.6);
        }

        .accordion-body {
            padding: 8px 22px 20px;
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.85;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
        }

        .cta-card {
            position: relative;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            border-radius: var(--radius-lg);
            padding: 60px 50px;
            text-align: center;
            color: #fff;
            overflow: hidden;
            isolation: isolate;
        }

        .cta-card::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 30, 58, .92), rgba(7, 20, 38, .78));
            z-index: -1;
        }

        .cta-card h2 {
            font-size: clamp(22px, 3vw, 32px);
            font-weight: 900;
            margin-bottom: 14px;
        }

        .cta-card p {
            max-width: 560px;
            margin: 0 auto 28px;
            color: rgba(255, 255, 255, .85);
            font-size: 15px;
        }

        .cta-card .btn-hero-primary {
            margin: 0 auto;
        }

        .cta-note {
            margin-top: 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, .6);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, .75);
            padding: 70px 0 24px;
        }

        .site-footer .container {
            max-width: 1200px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            margin-bottom: 24px;
        }

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

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

        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: .5px;
        }

        .footer-col a {
            display: flex;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            padding: 5px 0;
            transition: all var(--transition);
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 12px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
            margin: 0;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-page {
                padding: 70px 0 60px;
            }

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

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

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

            .hero-metrics {
                gap: 14px;
            }

            .hero-metric-item {
                flex: 1 1 calc(50% - 14px);
            }

            .faq-heading {
                position: static;
                margin-bottom: 30px;
            }

            .cta-card {
                padding: 40px 24px;
                border-radius: var(--radius);
            }

            .compare-table thead th,
            .compare-table tbody td {
                padding: 10px 12px;
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            .custom-navbar {
                min-height: 70px;
                padding: 10px 0;
            }

            .brand-logo {
                font-size: 15px;
            }

            .brand-logo i {
                width: 34px;
                height: 34px;
                font-size: 15px;
                border-radius: 10px;
            }

            .brand-logo span {
                font-size: 14px;
            }

            .hero-page {
                padding: 50px 0 46px;
            }

            .hero-page .hero-desc {
                font-size: 14px;
            }

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

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

            .hero-metrics {
                flex-direction: column;
                gap: 10px;
            }

            .hero-metric-item {
                flex: 1 1 100%;
            }

            .section-head {
                margin-bottom: 34px;
            }

            .platform-stats {
                flex-direction: row;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 22px;
            }
        }

/* roulang page: category3 */
:root {
  --primary: #0f2b46;
  --primary-light: #1e4d7b;
  --primary-dark: #081a2e;
  --accent: #e8a33d;
  --accent-hover: #d9922a;
  --bg: #f4f7fb;
  --bg-deep: #eaf0f6;
  --white: #ffffff;
  --text: #16202b;
  --muted: #64748b;
  --border: rgba(15, 43, 70, 0.08);
  --border-strong: rgba(15, 43, 70, 0.15);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 4px 16px rgba(15, 43, 70, 0.05);
  --shadow-md: 0 10px 30px rgba(15, 43, 70, 0.08);
  --shadow-lg: 0 20px 44px rgba(15, 43, 70, 0.12);
  --shadow-accent: 0 6px 20px rgba(232, 163, 61, 0.35);
  --transition: all 0.3s ease;
  --section-pad: 84px 0;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

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

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

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

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

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

/* ---------- 导航 ---------- */
.custom-navbar {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 0;
  min-height: 76px;
  position: sticky;
  top: 0;
  z-index: 1080;
  box-shadow: var(--shadow-sm);
}

.custom-navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  min-height: 76px;
  gap: 16px;
}

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

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

.navbar-left .nav-link,
.navbar-right .nav-link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text);
  padding: 8px 16px !important;
  border-radius: 999px;
  transition: var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}

.navbar-left .nav-link:hover,
.navbar-right .nav-link:hover {
  color: var(--primary);
  background: rgba(15, 43, 70, 0.05);
  border-color: var(--border);
}

.navbar-left .nav-link.active,
.navbar-right .nav-link.active {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 4px 14px rgba(15, 43, 70, 0.28);
}

.brand-logo {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.22rem;
  color: var(--primary) !important;
  text-decoration: none;
  white-space: nowrap;
  z-index: 5;
  line-height: 1.3;
}

.brand-logo i {
  font-size: 1.35rem;
  color: var(--accent);
  background: rgba(232, 163, 61, 0.12);
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  flex-shrink: 0;
}

.brand-logo em {
  font-style: normal;
  background: linear-gradient(135deg, var(--accent), #f7c35a);
  color: var(--primary-dark);
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 0.68em;
  font-weight: 700;
  margin-left: 4px;
  vertical-align: 2px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.btn-brand-nav {
  background: linear-gradient(135deg, var(--accent), #f0b554);
  color: #fff;
  padding: 9px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  box-shadow: var(--shadow-accent);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  text-decoration: none;
}

.btn-brand-nav:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(232, 163, 61, 0.45);
  color: #fff;
  background: linear-gradient(135deg, var(--accent-hover), var(--accent));
}

.btn-brand-nav:focus-visible {
  outline: 3px solid rgba(232, 163, 61, 0.5);
  outline-offset: 2px;
}

.navbar-toggler {
  border: none;
  background: rgba(15, 43, 70, 0.06);
  border-radius: 10px;
  padding: 10px 12px;
  width: 44px;
  height: 44px;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  transition: var(--transition);
}

.navbar-toggler:hover,
.navbar-toggler:focus {
  background: rgba(15, 43, 70, 0.1);
  box-shadow: none;
}

.navbar-toggler .toggler-bar {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  transition: var(--transition);
}

.mobile-nav-collapse {
  flex-basis: 100%;
  padding: 16px 0 14px;
  border-top: 1px solid var(--border);
}

.mobile-nav-collapse .mobile-nav-link {
  display: block;
  padding: 12px 16px;
  border-radius: 10px;
  color: var(--text);
  font-weight: 500;
  text-decoration: none;
  font-size: 0.99rem;
  transition: var(--transition);
}

.mobile-nav-collapse .mobile-nav-link:hover {
  background: rgba(15, 43, 70, 0.06);
  color: var(--primary);
}

.mobile-nav-collapse .mobile-nav-link.active {
  background: rgba(15, 43, 70, 0.08);
  color: var(--primary);
  font-weight: 600;
}

.mobile-nav-cta {
  display: block;
  margin-top: 10px;
  padding: 12px 16px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), #f0b554);
  color: #fff;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  transition: var(--transition);
}

.mobile-nav-cta:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
}

/* ---------- Hero ---------- */
.hero-banner {
  background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  position: relative;
  padding: 110px 0 90px;
  color: #fff;
}

.hero-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(8, 26, 46, 0.93) 0%, rgba(15, 43, 70, 0.82) 45%, rgba(30, 77, 123, 0.68) 100%);
  z-index: 1;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 7px 18px;
  border-radius: 999px;
  letter-spacing: 0.03em;
  backdrop-filter: blur(6px);
  margin-bottom: 26px;
}

.hero-banner h1 {
  font-size: clamp(2.2rem, 4.6vw, 3.6rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 18px;
  color: #fff;
  letter-spacing: -0.01em;
}

.hero-banner p {
  font-size: clamp(1rem, 1.4vw, 1.18rem);
  color: rgba(255, 255, 255, 0.85);
  max-width: 660px;
  margin-bottom: 34px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 50px;
}

.btn-hero-primary {
  background: linear-gradient(135deg, var(--accent), #f0b554);
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  padding: 12px 32px;
  border-radius: 999px;
  border: none;
  box-shadow: var(--shadow-accent);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.btn-hero-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(232, 163, 61, 0.5);
  color: #fff;
}

.btn-hero-outline {
  background: rgba(255, 255, 255, 0.1);
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  color: #fff;
  font-weight: 500;
  font-size: 1rem;
  padding: 12px 30px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.btn-hero-outline:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: #fff;
  color: #fff;
  transform: translateY(-3px);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 520px;
}

.hero-stat-item {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-md);
  padding: 16px 12px;
  text-align: center;
  backdrop-filter: blur(8px);
  transition: var(--transition);
}

.hero-stat-item:hover {
  background: rgba(255, 255, 255, 0.16);
  transform: translateY(-4px);
}

.hero-stat-item strong {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}

.hero-stat-item span {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.05em;
  display: block;
  margin-top: 4px;
}

/* ---------- 通用 Section ---------- */
.section {
  padding: var(--section-pad);
  position: relative;
}

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

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(232, 163, 61, 0.1);
  border: 1px solid rgba(232, 163, 61, 0.2);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--text);
  margin: 0 0 14px;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.section-desc {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.8;
  margin: 0;
}

/* ---------- 分类导航卡片 ---------- */
.category-section {
  background: var(--bg);
}

.category-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  text-decoration: none;
  color: var(--text);
}

.category-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(15, 43, 70, 0.16);
  color: var(--text);
}

.category-card.active {
  border-color: rgba(232, 163, 61, 0.5);
  box-shadow: 0 14px 40px rgba(232, 163, 61, 0.16);
  position: relative;
}

.category-card.active::after {
  content: '当前栏目';
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--accent);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 999px;
  box-shadow: var(--shadow-accent);
  z-index: 3;
}

.category-card-img {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

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

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

.category-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 43, 70, 0.35), transparent 60%);
}

.category-card-body {
  padding: 26px 24px 28px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.category-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--primary);
  background: rgba(15, 43, 70, 0.06);
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
  width: fit-content;
  letter-spacing: 0.04em;
}

.category-card h3 {
  font-size: 1.32rem;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 12px;
  line-height: 1.35;
}

.category-card p {
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.75;
  margin-bottom: 20px;
  flex: 1;
}

.category-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.93rem;
  color: var(--primary);
  transition: var(--transition);
}

.category-link i {
  transition: transform 0.3s;
}

.category-card:hover .category-link i {
  transform: translateX(5px);
}

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

/* ---------- 文章列表 ---------- */
.tips-section {
  background: var(--bg-deep);
}

.article-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.article-card:hover {
  transform: translateY(-7px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-strong);
}

.card-img-wrap {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--primary);
}

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

.card-img-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8, 26, 46, 0.45), transparent 55%);
}

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

.card-badge {
  position: absolute;
  left: 16px;
  bottom: 16px;
  background: rgba(15, 43, 70, 0.9);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 5px 13px;
  border-radius: 999px;
  z-index: 2;
  letter-spacing: 0.03em;
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

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

.card-body h3 {
  font-size: 1.12rem;
  font-weight: 700;
  line-height: 1.5;
  margin: 0 0 10px;
}

.card-body h3 a {
  color: var(--text);
  text-decoration: none;
  transition: var(--transition);
}

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

.card-body p {
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.72;
  margin-bottom: 18px;
  flex: 1;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.82rem;
}

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

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

/* ---------- 登录流程 ---------- */
.steps-section {
  background: var(--white);
}

.step-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 24px 30px;
  text-align: center;
  height: 100%;
  position: relative;
  transition: var(--transition);
}

.step-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  background: var(--white);
  border-color: rgba(15, 43, 70, 0.12);
}

.step-number {
  width: 66px;
  height: 66px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  font-size: 1.4rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 22px;
  box-shadow: 0 10px 24px rgba(15, 43, 70, 0.3);
  position: relative;
  z-index: 2;
}

.step-item:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 52px;
  right: -26px;
  width: 52px;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--border-strong) 0 4px, transparent 4px 8px);
  z-index: 1;
}

.step-item h3 {
  font-size: 1.14rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}

.step-item p {
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.75;
  margin: 0;
}

/* ---------- 安全提示 ---------- */
.security-section {
  background: linear-gradient(135deg, rgba(8, 26, 46, 0.96), rgba(15, 43, 70, 0.92)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
  color: #fff;
  padding: 84px 0;
  position: relative;
  overflow: hidden;
}

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

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

.security-section .section-label {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: #fff;
}

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

.security-item {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  gap: 18px;
  align-items: flex-start;
  transition: var(--transition);
  backdrop-filter: blur(6px);
}

.security-item:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-3px);
}

.security-icon {
  width: 46px;
  height: 46px;
  background: rgba(232, 163, 61, 0.2);
  border: 1px solid rgba(232, 163, 61, 0.3);
  color: var(--accent);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.security-item h3 {
  font-size: 1.06rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 8px;
}

.security-item p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.7;
  margin: 0;
}

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

.faq-list {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.faq-item:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(15, 43, 70, 0.14);
}

.faq-item h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.faq-item h4 i {
  color: var(--accent);
  font-size: 0.8rem;
  background: rgba(232, 163, 61, 0.12);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.faq-item p {
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.75;
  margin: 0 0 0 36px;
}

/* ---------- CTA ---------- */
.cta-section {
  padding: 0 0 84px;
  background: var(--bg);
}

.cta-inner {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-xl);
  padding: 64px 48px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(15, 43, 70, 0.28);
}

.cta-inner::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -60px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
}

.cta-inner::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -80px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(232, 163, 61, 0.14);
}

.cta-inner h2 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 16px;
  color: #fff;
  position: relative;
  z-index: 1;
}

.cta-inner p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.05rem;
  max-width: 620px;
  margin: 0 auto 32px;
  line-height: 1.8;
  position: relative;
  z-index: 1;
}

.cta-btn {
  background: linear-gradient(135deg, var(--accent), #f0b554);
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 36px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-accent);
  transition: var(--transition);
  text-decoration: none;
  position: relative;
  z-index: 1;
}

.cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(232, 163, 61, 0.5);
  color: var(--primary-dark);
}

.cta-btn i {
  transition: transform 0.3s;
}

.cta-btn:hover i {
  transform: translateX(5px);
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.65);
  padding: 64px 0 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-brand-col .brand-logo {
  position: static;
  transform: none;
  color: #fff !important;
  font-size: 1.18rem;
  margin-bottom: 18px;
}

.footer-brand-col .brand-logo i {
  background: rgba(232, 163, 61, 0.18);
}

.footer-brand-col p {
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.8;
  margin: 0;
  max-width: 360px;
}

.footer-col h5 {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 0.03em;
}

.footer-col a {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  text-decoration: none;
  padding: 6px 0;
  transition: var(--transition);
}

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

.footer-col a i {
  color: rgba(232, 163, 61, 0.7);
  font-size: 0.85rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
  text-align: center;
}

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

/* ---------- 响应式 ---------- */
@media (max-width: 1200px) {
  .step-item:not(:last-child)::after {
    display: none;
  }
}

@media (max-width: 991.98px) {
  .custom-navbar .container {
    flex-wrap: wrap;
  }

  .brand-logo {
    position: static;
    transform: none;
    margin-right: auto;
  }

  .special-navbar {
    min-height: 70px;
  }

  .hero-banner {
    padding: 74px 0 64px;
  }

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

@media (max-width: 767.98px) {
  :root {
    --section-pad: 60px 0;
  }

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

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

  .hero-banner p {
    font-size: 1rem;
  }

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

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

  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    max-width: 100%;
  }

  .hero-stat-item strong {
    font-size: 1.2rem;
  }

  .hero-stat-item span {
    font-size: 0.72rem;
  }

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

  .security-item {
    padding: 22px 18px;
  }

  .cta-inner {
    padding: 44px 24px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 32px;
  }
}

@media (max-width: 575.98px) {
  .brand-logo {
    font-size: 1rem;
  }

  .brand-logo i {
    width: 30px;
    height: 30px;
    font-size: 1.05rem;
    border-radius: 8px;
  }

  .brand-logo em {
    font-size: 0.62em;
    padding: 2px 7px;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .hero-stat-item {
    padding: 12px 6px;
  }

  .hero-stat-item strong {
    font-size: 1.1rem;
  }

  .faq-item {
    padding: 20px 16px;
  }

  .faq-item p {
    margin-left: 0;
    margin-top: 6px;
  }

  .faq-item h4 {
    font-size: 1rem;
  }

  .card-body {
    padding: 20px 18px;
  }
}