/* roulang page: index */
:root {
  --pri: #4a3f8a;
  --pri-2: #6b5cb8;
  --pri-soft: #edeafb;
  --acc: #d4a843;
  --acc-soft: #faf3e0;
  --bg: #f7f5fd;
  --bg-white: #ffffff;
  --text: #2c2940;
  --text-muted: #6e6a85;
  --border: #e6e2f5;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 12px rgba(74, 63, 138, .06);
  --shadow-md: 0 10px 35px rgba(74, 63, 138, .10);
  --shadow-lg: 0 25px 60px rgba(74, 63, 138, .18);
  --tr: all .3s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; transition: var(--tr); }
img { max-width: 100%; height: auto; }
button, input { font-family: inherit; }
.container { max-width: 1280px; }
.section-pad { padding: 90px 0; }
.section-title { font-size: 2.2rem; font-weight: 800; color: var(--text); margin-bottom: .5rem; }
.section-sub { font-size: 1.05rem; color: var(--text-muted); max-width: 640px; }
.divider-ornament { display: inline-flex; align-items: center; gap: 8px; color: var(--acc); margin-bottom: 12px; font-size: .9rem; letter-spacing: 2px; text-transform: uppercase; }
.divider-ornament::before, .divider-ornament::after { content: ""; width: 30px; height: 1px; background: var(--acc); opacity: .5; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1050;
  background: rgba(247, 245, 253, .88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(230, 226, 245, .7);
}
.navbar { padding: 1rem 0; }
.navbar-brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; color: var(--text); }
.brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--pri), var(--pri-2));
  color: #fff; font-weight: 800; font-size: 1.1rem;
  box-shadow: var(--shadow-sm);
}
.brand-text { white-space: nowrap; }
.navbar-nav .nav-link {
  padding: .5rem 1rem !important;
  color: var(--text-muted);
  font-weight: 500;
  border-radius: var(--radius-sm);
  margin: 0 2px;
}
.navbar-nav .nav-link:hover, .navbar-nav .nav-link.active { color: var(--pri); background: var(--pri-soft); }
.btn-accent {
  background: linear-gradient(135deg, var(--acc), #c89a35);
  color: #fff;
  border: none;
  border-radius: 50px;
  padding: .55rem 1.5rem;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(212, 168, 67, .35);
  transition: var(--tr);
}
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(212, 168, 67, .45); color: #fff; }
.btn-outline-pri {
  background: transparent;
  border: 2px solid var(--pri);
  color: var(--pri);
  border-radius: 50px;
  padding: .5rem 1.4rem;
  font-weight: 600;
  transition: var(--tr);
}
.btn-outline-pri:hover { background: var(--pri); color: #fff; transform: translateY(-2px); }
.navbar-toggler { border: none; }
.navbar-toggler:focus { box-shadow: none; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 80px 0 0;
  background: linear-gradient(160deg, #f7f5fd 0%, #edeafb 50%, #f7f5fd 100%);
}
.hero-inner {
  display: flex;
  align-items: center;
  gap: 50px;
}
.hero-text {
  flex: 1;
  padding: 40px 0 80px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.85);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: .35rem 1.1rem;
  font-size: .85rem;
  color: var(--pri);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.5rem;
}
.hero-badge i { color: var(--acc); }
.hero-title {
  font-size: 2.9rem;
  font-weight: 900;
  line-height: 1.25;
  color: var(--text);
  margin-bottom: 1rem;
}
.hero-title .highlight {
  background: linear-gradient(120deg, var(--pri), var(--pri-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 520px;
  margin-bottom: 2rem;
}
.hero-actions { display: flex; gap: 15px; flex-wrap: wrap; }
.hero-actions .btn { padding: .7rem 1.8rem; font-weight: 600; }
.hero-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(74,63,138,.12);
}
.hero-stats .stat-num { font-size: 1.8rem; font-weight: 900; color: var(--pri); }
.hero-stats .stat-label { font-size: .9rem; color: var(--text-muted); }
.hero-visual { flex: 1; position: relative; min-height: 480px; }
.hero-img-main {
  position: absolute;
  right: 0;
  top: 40px;
  width: 85%;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 4px solid rgba(255,255,255,.85);
  aspect-ratio: 4/3;
}
.hero-img-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.float-card {
  position: absolute;
  background: rgba(255,255,255,.96);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.6);
  z-index: 2;
}
.float-card .icon-circle {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--pri-soft);
  color: var(--pri);
  font-size: 1rem;
}
.float-card .fc-title { font-size: .85rem; font-weight: 700; color: var(--text); }
.float-card .fc-sub { font-size: .75rem; color: var(--text-muted); }
.fc-1 { top: 80px; left: -10px; }
.fc-2 { bottom: 90px; right: 15px; }
.fc-3 { bottom: 20px; left: 10px; background: linear-gradient(135deg, var(--pri), var(--pri-2)); color: #fff; border-color: transparent; }
.fc-3 .icon-circle { background: rgba(255,255,255,.2); color: #fff; }
.fc-3 .fc-title { color: #fff; }
.fc-3 .fc-sub { color: rgba(255,255,255,.85); }
.hero-shape {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212,168,67,.2) 0%, transparent 70%);
  z-index: 0;
}
.hs-1 { width: 300px; height: 300px; top: -30px; right: 20px; }
.hs-2 { width: 180px; height: 180px; bottom: 20px; left: -40px; background: radial-gradient(circle, rgba(74,63,138,.12) 0%, transparent 70%); }

/* ---------- Sections ---------- */
.section-title { position: relative; }
.section-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 28px;
  height: 100%;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--tr);
}
.section-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }

/* category cards */
.category-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  height: 100%;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--tr);
  position: relative;
  overflow: hidden;
}
.category-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--pri), var(--pri-2), var(--acc));
  opacity: 0;
  transition: var(--tr);
}
.category-card:hover::before { opacity: 1; }
.category-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); }
.category-icon {
  width: 64px; height: 64px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--pri), var(--pri-2));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1.6rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
}
.category-icon.gold { background: linear-gradient(135deg, var(--acc), #c89a35); }
.category-icon.soft { background: linear-gradient(135deg, #8b7fd6, var(--pri-2)); }
.category-card h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 8px; }
.category-card p { color: var(--text-muted); font-size: .92rem; margin-bottom: 14px; }
.category-link { color: var(--pri); font-weight: 600; font-size: .9rem; }
.category-link i { transition: var(--tr); font-size: .8rem; }
.category-link:hover i { transform: translateX(5px); }

/* news / post cards */
.post-card {
  display: flex;
  gap: 18px;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 20px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--tr);
  height: 100%;
}
.post-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.post-thumb {
  width: 100px;
  height: 100px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--pri-soft);
}
.post-thumb img { width: 100%; height: 100%; object-fit: cover; }
.post-body { flex: 1; min-width: 0; }
.post-meta { font-size: .8rem; color: var(--text-muted); margin-bottom: 6px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.post-meta .badge-cat {
  background: var(--pri-soft); color: var(--pri);
  padding: .2rem .7rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: .75rem;
}
.post-body h4 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; }
.post-body h4 a:hover { color: var(--pri); }
.post-body p { font-size: .88rem; color: var(--text-muted); margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* list card */
.list-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--tr);
}
.list-card:hover { box-shadow: var(--shadow-md); }
.info-item { display: flex; align-items: center; gap: 14px; padding: 14px 0; border-bottom: 1px solid #f0edf7; }
.info-item:last-child { border-bottom: none; }
.info-item .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--acc);
  flex-shrink: 0;
}
.info-item .dot.pri { background: var(--pri); }
.info-item .dot.pri2 { background: var(--pri-2); }
.info-item a { flex: 1; font-size: .95rem; color: var(--text); }
.info-item a:hover { color: var(--pri); }
.info-item .date { font-size: .8rem; color: var(--text-muted); whitespace: nowrap; }

/* steps */
.step-card { text-align: center; padding: 30px 20px; position: relative; }
.step-num {
  width: 56px; height: 56px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--pri), var(--pri-2));
  color: #fff;
  font-size: 1.3rem;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-sm);
}
.step-card h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.step-card p { font-size: .9rem; color: var(--text-muted); }
.step-arrow {
  position: absolute;
  top: 40%;
  right: -12px;
  color: var(--border);
  font-size: 1.4rem;
  z-index: 1;
}

/* features */
.feature-card {
  display: flex;
  gap: 18px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 26px;
  height: 100%;
  transition: var(--tr);
}
.feature-card:hover { box-shadow: var(--shadow-md); transform: translateX(4px); }
.feature-icon {
  width: 48px; height: 48px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  background: var(--pri-soft);
  color: var(--pri);
  font-size: 1.2rem;
  flex-shrink: 0;
}
.feature-icon.gold { background: var(--acc-soft); color: var(--acc); }
.feature-card h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
.feature-card p { font-size: .9rem; color: var(--text-muted); margin: 0; }

/* data block */
.data-panel {
  background: linear-gradient(135deg, var(--pri) 0%, var(--pri-2) 50%, #504097 100%);
  border-radius: var(--radius-lg);
  padding: 50px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.data-panel::before {
  content: "";
  position: absolute;
  width: 260px; height: 260px;
  border-radius: 50%;
  background: rgba(255,255,255,.07);
  top: -80px; right: -60px;
}
.data-panel::after {
  content: "";
  position: absolute;
  width: 160px; height: 160px;
  border-radius: 50%;
  background: rgba(212,168,67,.2);
  bottom: -50px; left: 20px;
}
.data-item { text-align: center; position: relative; z-index: 1; }
.data-item .num { font-size: 2.4rem; font-weight: 900; }
.data-item .lbl { font-size: .9rem; opacity: .85; margin-top: 4px; }

/* FAQ */
.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  margin-bottom: 14px;
  transition: var(--tr);
}
.faq-item:hover { box-shadow: var(--shadow-sm); }
.faq-item h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; display: flex; align-items: center; gap: 10px; }
.faq-item h4 .q-mark {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--pri-soft);
  color: var(--pri);
  font-size: .8rem;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.faq-item p { font-size: .92rem; color: var(--text-muted); margin: 0; padding-left: 36px; }

/* CTA */
.cta-section {
  background: linear-gradient(135deg, var(--pri-soft), #f5f0ff);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  padding: 60px 50px;
  text-align: center;
}
.cta-section::before {
  content: "";
  position: absolute;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212,168,67,.18) 0%, transparent 70%);
  top: -150px; right: -100px;
}
.cta-section h2 { font-size: 2rem; font-weight: 800; margin-bottom: 12px; position: relative; z-index: 1; }
.cta-section p { font-size: 1.05rem; color: var(--text-muted); max-width: 520px; margin: 0 auto 30px; position: relative; z-index: 1; }
.cta-section .btn { position: relative; z-index: 1; }

/* Footer */
.site-footer {
  background: #1a1730;
  color: rgba(255,255,255,.75);
  padding: 70px 0 0;
  margin-top: 40px;
}
.footer-brand {
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}
.footer-brand .brand-mark { width: 42px; height: 42px; }
.site-footer p { font-size: .9rem; line-height: 1.8; }
.site-footer h5 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}
.site-footer h5::after { content: ""; position: absolute; bottom: 0; left: 0; width: 28px; height: 2px; background: var(--acc); border-radius: 2px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer ul li { margin-bottom: 10px; }
.site-footer ul a { color: rgba(255,255,255,.7); font-size: .9rem; }
.site-footer ul a:hover { color: var(--acc); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding: 20px 0;
  margin-top: 50px;
  text-align: center;
  font-size: .85rem;
  color: rgba(255,255,255,.55);
}

/* Page banner (inner pages) */
.page-banner {
  background: linear-gradient(135deg, var(--pri) 0%, #6b5cb8 100%);
  padding: 70px 0 60px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.page-banner::after {
  content: "";
  position: absolute;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: rgba(255,255,255,.07);
  top: -80px; right: 30px;
}
.page-banner .banner-title { font-size: 2.1rem; font-weight: 800; margin-bottom: 8px; position: relative; z-index: 1; }
.page-banner .banner-sub { font-size: 1rem; opacity: .9; position: relative; z-index: 1; }
.breadcrumb-custom { font-size: .85rem; color: rgba(255,255,255,.75); margin-bottom: 10px; position: relative; z-index: 1; }
.breadcrumb-custom a { color: rgba(255,255,255,.9); }
.breadcrumb-custom a:hover { color: var(--acc); }
.breadcrumb-custom span { margin: 0 6px; opacity: .6; }

/* Article */
.article-wrap {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}
.article-title { font-size: 2rem; font-weight: 800; line-height: 1.4; margin-bottom: 18px; }
.article-meta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; padding-bottom: 20px; border-bottom: 1px solid #f0edf7; margin-bottom: 28px; color: var(--text-muted); font-size: .88rem; }
.article-meta .badge-cat { background: var(--pri-soft); color: var(--pri); padding: .25rem .8rem; border-radius: 50px; font-weight: 600; }
.article-cover { border-radius: var(--radius-md); overflow: hidden; margin-bottom: 28px; }
.article-cover img { width: 100%; }
.article-content { font-size: 1rem; line-height: 2; color: var(--text); }
.article-content h2 { font-size: 1.5rem; font-weight: 800; margin: 32px 0 16px; }
.article-content h3 { font-size: 1.2rem; font-weight: 700; margin: 28px 0 12px; }
.article-content p { margin-bottom: 16px; }
.article-content ul, .article-content ol { padding-left: 1.4rem; margin-bottom: 16px; }
.article-content li { margin-bottom: 8px; }
.article-content img { border-radius: var(--radius-sm); }
.article-nav { display: flex; justify-content: space-between; gap: 20px; margin-top: 40px; padding-top: 24px; border-top: 1px solid #f0edf7; }
.article-nav a { display: inline-flex; align-items: center; gap: 8px; background: var(--bg); padding: .7rem 1.4rem; border-radius: 50px; font-size: .9rem; color: var(--text); font-weight: 500; }
.article-nav a:hover { background: var(--pri-soft); color: var(--pri); }

/* Sidebar / cards */
.sidebar-card { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 24px; margin-bottom: 20px; box-shadow: var(--shadow-sm); }
.sidebar-card h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid #f0edf7; position: relative; }
.sidebar-card h4::after { content: ""; position: absolute; bottom: -1px; left: 0; width: 40px; height: 3px; background: var(--pri); border-radius: 3px; }

/* Tag */
.tag { display: inline-block; background: var(--bg); color: var(--text-muted); border-radius: 50px; padding: .3rem .9rem; font-size: .78rem; margin: 0 6px 8px 0; border: 1px solid var(--border); transition: var(--tr); }
.tag:hover { background: var(--pri-soft); color: var(--pri); border-color: transparent; }

/* Timeline */
.timeline { position: relative; padding-left: 30px; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(180deg, var(--pri), var(--acc)); }
.timeline-item { position: relative; padding-bottom: 30px; }
.timeline-item::before { content: ""; position: absolute; left: -25px; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: var(--pri); border: 3px solid var(--bg-white); box-shadow: var(--shadow-sm); }
.timeline-item h4 { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
.timeline-item p { font-size: .9rem; color: var(--text-muted); margin: 0; }
.timeline-item .time { font-size: .8rem; color: var(--acc); font-weight: 600; display: block; margin-bottom: 4px; }

/* ---------- Responsive ---------- */
@media (max-width: 991.98px) {
  .section-pad { padding: 60px 0; }
  .hero { padding-top: 40px; }
  .hero-inner { flex-direction: column; gap: 40px; }
  .hero-text { padding-bottom: 40px; }
  .hero-visual { min-height: 380px; width: 100%; }
  .hero-title { font-size: 2.2rem; }
  .data-panel { padding: 40px 20px; }
  .data-item .num { font-size: 1.8rem; }
  .step-arrow { display: none; }
}
@media (max-width: 767.98px) {
  .section-pad { padding: 45px 0; }
  .section-title { font-size: 1.7rem; }
  .hero-stats { gap: 1.2rem; flex-wrap: wrap; }
  .hero-stats .stat-num { font-size: 1.4rem; }
  .hero-visual { min-height: 280px; }
  .hero-img-main { position: relative; top: auto; width: 100%; }
  .float-card { display: none; }
  .page-banner { padding: 45px 0 35px; }
  .page-banner .banner-title { font-size: 1.6rem; }
  .article-wrap { padding: 24px 18px; }
  .article-title { font-size: 1.4rem; }
  .post-card { flex-direction: column; }
  .post-thumb { width: 100%; height: 120px; }
  .cta-section { padding: 40px 20px; }
  .cta-section h2 { font-size: 1.5rem; }
  .data-panel { padding: 30px 15px; }
  .data-item .num { font-size: 1.5rem; }
  .footer-bottom { margin-top: 30px; }
}
@media (max-width: 520px) {
  .hero-title { font-size: 1.7rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; text-align: center; }
  .navbar-brand { font-size: .95rem; }
  .brand-text { max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .faq-item p { padding-left: 0; }
  .faq-item h4 { align-items: flex-start; }
  .article-meta { gap: 10px; }
}

/* roulang page: category1 */
:root {
  --primary: #4f46e5;
  --primary-dark: #3730a3;
  --primary-soft: rgba(79, 70, 229, 0.10);
  --accent: #f59e0b;
  --accent-soft: rgba(245, 158, 11, 0.12);
  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #1e293b;
  --text-weak: #64748b;
  --border: #e2e8f0;
  --radius: 22px;
  --radius-sm: 12px;
  --shadow: 0 12px 36px rgba(30, 41, 59, 0.08);
  --shadow-lg: 0 24px 64px rgba(30, 41, 59, 0.14);
  --transition: all .3s ease;
  --font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
a:hover { color: var(--primary); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button, input { font-family: inherit; }
.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}
.btn-accent {
  background: linear-gradient(135deg, var(--accent), #e07b00);
  color: #fff;
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.28);
}
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(245, 158, 11, 0.36); color: #fff; }
.btn-primary-custom {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.24);
}
.btn-primary-custom:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(79, 70, 229, 0.34); color: #fff; }
.btn-outline-custom {
  background: transparent;
  color: var(--text);
  border: 2px solid var(--border);
}
.btn-outline-custom:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn:focus-visible, a:focus-visible, button:focus-visible {
  outline: 3px solid rgba(79, 70, 229, 0.35);
  outline-offset: 3px;
}
.badge-soft {
  display: inline-block;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 600;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
}
.badge-accent {
  background: var(--accent-soft);
  color: #c27400;
}
/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1050;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
}
.site-header .navbar { padding: 14px 0; }
.navbar-brand { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 800; color: var(--text); }
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  box-shadow: 0 6px 16px rgba(79, 70, 229, 0.25);
}
.brand-text { letter-spacing: 0.02em; }
.navbar-nav .nav-link {
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-weak);
  border-radius: 999px;
  transition: var(--transition);
}
.navbar-nav .nav-link:hover { color: var(--primary); background: var(--primary-soft); }
.navbar-nav .nav-link.active { color: var(--primary); background: var(--primary-soft); font-weight: 600; }
.navbar-toggler { border: none; outline: none; box-shadow: none !important; }
.navbar-toggler-icon { background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(30,41,59,.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e"); }
@media (max-width: 991.98px) {
  .navbar-nav { padding: 16px 0; }
  .navbar-nav .nav-link { padding: 12px 16px; }
  .navbar-collapse { background: #fff; border-radius: var(--radius-sm); box-shadow: var(--shadow); padding: 8px 12px; margin-top: 10px; }
}
/* ===== Hero ===== */
.hero-section {
  position: relative;
  padding: 90px 0 100px;
  background:
    linear-gradient(135deg, rgba(79, 70, 229, 0.06) 0%, rgba(245, 158, 11, 0.09) 50%, rgba(248, 250, 252, 0.4) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  overflow: hidden;
}
.hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(255, 255, 255, 0.65) 0%, rgba(255, 255, 255, 0.25) 60%);
  pointer-events: none;
}
.hero-section .container { position: relative; z-index: 2; }
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--border);
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  box-shadow: 0 4px 16px rgba(30, 41, 59, 0.06);
}
.hero-title {
  font-size: clamp(34px, 4rem, 56px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--text);
  margin: 22px 0 18px;
}
.hero-title span {
  background: linear-gradient(120deg, var(--primary), #7c6cf6);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-desc {
  font-size: 17px;
  color: var(--text-weak);
  max-width: 540px;
  line-height: 1.8;
  margin-bottom: 34px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-visual {
  position: relative;
  padding: 30px 20px 30px 30px;
}
.hero-visual .main-img {
  border-radius: 28px;
  box-shadow: var(--shadow-lg);
  transform: perspective(1200px) rotateY(-6deg) rotateX(2deg);
  transition: transform 0.6s ease;
}
.hero-visual .main-img:hover { transform: perspective(1200px) rotateY(0) rotateX(0); }
.hero-float-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-radius: 18px;
  padding: 18px 22px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.8);
  animation: floatCard 4s ease-in-out infinite alternate;
}
.hero-float-card.card-top { top: 12px; right: 0; }
.hero-float-card.card-bottom { bottom: 24px; left: 0; animation-delay: 1.6s; }
.hero-float-card .fc-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 18px;
  margin-bottom: 8px;
}
.hero-float-card .fc-title { font-size: 14px; font-weight: 700; color: var(--text); }
.hero-float-card .fc-desc { font-size: 12px; color: var(--text-weak); margin-top: 2px; }
.hero-float-card .fc-check { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; color: #16a34a; margin-top: 8px; }
@keyframes floatCard {
  from { transform: translateY(0); }
  to { transform: translateY(-12px); }
}
@media (max-width: 991.98px) {
  .hero-section { padding: 60px 0 70px; }
  .hero-visual { padding: 30px 0 0; margin-top: 20px; }
  .hero-visual .main-img { transform: none; }
}
/* ===== Section common ===== */
.section-padding { padding: 90px 0; }
.section-header { text-align: center; max-width: 720px; margin: 0 auto 50px; }
.section-tag { display: inline-block; margin-bottom: 14px; }
.section-title {
  font-size: clamp(26px, 2.4rem, 38px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
  line-height: 1.35;
  margin-bottom: 14px;
}
.section-subtitle { font-size: 16px; color: var(--text-weak); line-height: 1.75; }
/* ===== Method Cards ===== */
.methods-section { background: var(--surface); position: relative; }
.methods-section .section-bg-decor {
  position: absolute;
  top: 0;
  right: 0;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.06) 0%, transparent 70%);
  pointer-events: none;
}
.method-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 38px 30px;
  height: 100%;
  box-shadow: 0 4px 20px rgba(30, 41, 59, 0.04);
  transition: var(--transition);
}
.method-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.04), rgba(245, 158, 11, 0.04));
  opacity: 0;
  transition: var(--transition);
  pointer-events: none;
}
.method-card:hover { transform: translateY(-8px); box-shadow: var(--shadow); border-color: rgba(79, 70, 229, 0.20); }
.method-card:hover::after { opacity: 1; }
.method-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 18px;
  font-size: 26px;
  color: var(--primary);
  background: var(--primary-soft);
  margin-bottom: 20px;
  transition: var(--transition);
}
.method-card:hover .method-icon { transform: scale(1.06) rotate(-3deg); }
.method-card .method-tag { position: absolute; top: 20px; right: 20px; }
.method-title { font-size: 20px; font-weight: 700; margin-bottom: 10px; color: var(--text); }
.method-desc { font-size: 15px; color: var(--text-weak); line-height: 1.75; }
.method-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}
.method-link i { transition: transform 0.3s ease; }
.method-link:hover i { transform: translateX(5px); }
/* ===== Steps ===== */
.steps-section {
  background: linear-gradient(180deg, var(--bg) 0%, #eef2ff 100%);
  position: relative;
}
.step-item {
  position: relative;
  text-align: center;
  padding: 30px 22px;
  background: rgba(255, 255, 255, 0.75);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(8px);
  height: 100%;
  transition: var(--transition);
}
.step-item:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  box-shadow: 0 8px 20px rgba(79, 70, 229, 0.25);
  margin-bottom: 18px;
}
.step-item:nth-child(2) .step-num { background: linear-gradient(135deg, var(--accent), #e07b00); box-shadow: 0 8px 20px rgba(245, 158, 11, 0.28); }
.step-item:nth-child(3) .step-num { background: linear-gradient(135deg, #0ea5e9, #0284c7); box-shadow: 0 8px 20px rgba(14, 165, 233, 0.25); }
.step-item:nth-child(4) .step-num { background: linear-gradient(135deg, #10b981, #059669); box-shadow: 0 8px 20px rgba(16, 185, 129, 0.25); }
.step-title { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.step-desc { font-size: 14px; color: var(--text-weak); line-height: 1.7; }
.step-arrow {
  position: absolute;
  top: 50%;
  right: -22px;
  transform: translateY(-50%);
  color: var(--border);
  font-size: 20px;
  z-index: 2;
  display: none;
}
@media (min-width: 992px) {
  .step-item:not(:last-child) .step-arrow { display: block; }
}
/* ===== Article Cards ===== */
.guide-section { background: var(--surface); }
.guide-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  height: 100%;
  transition: var(--transition);
}
.guide-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
.guide-card .card-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}
.guide-card .card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.guide-card:hover .card-img-wrap img { transform: scale(1.06); }
.guide-card .card-img-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(30, 41, 59, 0.12));
}
.guide-card .card-badge {
  position: absolute;
  top: 16px;
  left: 16px;
}
.guide-card .card-body { padding: 26px 24px; }
.guide-card .card-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 13px;
  color: var(--text-weak);
  margin-bottom: 12px;
}
.guide-card .card-meta i { color: var(--primary); }
.guide-card .card-title { font-size: 18px; font-weight: 700; line-height: 1.5; margin-bottom: 10px; color: var(--text); }
.guide-card .card-title:hover { color: var(--primary); }
.guide-card .card-text { font-size: 14px; color: var(--text-weak); line-height: 1.7; }
/* ===== Safety ===== */
.safety-section {
  position: relative;
  padding: 90px 0;
  background:
    url('/assets/images/backpic/back-2.png') center/cover no-repeat fixed;
}
.safety-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.88), rgba(30, 41, 59, 0.82));
}
.safety-section .container { position: relative; z-index: 2; }
.safety-section .section-title { color: #fff; }
.safety-section .section-subtitle { color: rgba(255, 255, 255, 0.7); }
.safety-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
  border-radius: var(--radius);
  padding: 26px 24px;
  height: 100%;
  transition: var(--transition);
}
.safety-card:hover { background: rgba(255, 255, 255, 0.13); transform: translateY(-4px); }
.safety-card .s-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.15);
  color: #fbbf24;
  font-size: 20px;
  margin-bottom: 16px;
}
.safety-card .s-title { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.safety-card .s-desc { font-size: 14px; color: rgba(255, 255, 255, 0.7); line-height: 1.7; }
/* ===== FAQ ===== */
.faq-section { background: var(--bg); }
.accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm) !important;
  overflow: hidden;
  background: var(--surface);
  margin-bottom: 14px;
  box-shadow: 0 2px 10px rgba(30, 41, 59, 0.02);
  transition: var(--transition);
}
.accordion-item:last-child { margin-bottom: 0; }
.accordion-item:hover { border-color: rgba(79, 70, 229, 0.2); }
.accordion-button {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  padding: 20px 24px;
  background: var(--surface);
  box-shadow: none !important;
  border: none;
}
.accordion-button:not(.collapsed) { color: var(--primary); background: var(--primary-soft); }
.accordion-button:focus { box-shadow: none; border-color: transparent; }
.accordion-button::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%234f46e5'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}
.accordion-body {
  padding: 4px 24px 22px;
  font-size: 15px;
  color: var(--text-weak);
  line-height: 1.8;
}
/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 100px 0;
  background:
    linear-gradient(135deg, rgba(79, 70, 229, 0.92), rgba(55, 48, 163, 0.94)),
    url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  text-align: center;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}
.cta-section::after {
  content: "";
  position: absolute;
  bottom: -100px;
  left: -60px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(245, 158, 11, 0.12);
}
.cta-section .container { position: relative; z-index: 2; }
.cta-title { font-size: clamp(28px, 2.6rem, 42px); font-weight: 800; color: #fff; margin-bottom: 16px; letter-spacing: -0.01em; }
.cta-desc { font-size: 17px; color: rgba(255, 255, 255, 0.8); max-width: 620px; margin: 0 auto 38px; }
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 42px;
  border-radius: 999px;
  background: #fff;
  color: var(--primary);
  font-size: 16px;
  font-weight: 700;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
  transition: var(--transition);
}
.cta-btn:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(0, 0, 0, 0.22); color: var(--primary-dark); }
.cta-btn i { transition: transform 0.3s ease; }
.cta-btn:hover i { transform: translateX(5px); }
/* ===== Footer ===== */
.site-footer { background: #0f172a; color: rgba(255, 255, 255, 0.7); padding: 65px 0 0; }
.site-footer .footer-brand { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.site-footer .footer-brand .brand-mark { background: linear-gradient(135deg, var(--primary), #7c6cf6); }
.site-footer p { font-size: 14px; line-height: 1.8; }
.site-footer h5 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 18px; letter-spacing: 0.02em; }
.site-footer ul li { margin-bottom: 10px; }
.site-footer ul li a { font-size: 14px; color: rgba(255, 255, 255, 0.6); transition: var(--transition); }
.site-footer ul li a:hover { color: #fbbf24; padding-left: 4px; }
.footer-bottom {
  margin-top: 50px;
  padding: 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
}
.footer-bottom p { font-size: 13px; color: rgba(255, 255, 255, 0.45); margin: 0; }
@media (max-width: 767.98px) {
  .section-padding { padding: 65px 0; }
  .hero-section { padding: 50px 0 60px; }
  .hero-title { font-size: 30px; }
  .cta-section { padding: 70px 0; }
  .site-footer { padding-top: 45px; }
}
@media (max-width: 520px) {
  .hero-actions .btn { width: 100%; }
  .method-card { padding: 28px 22px; }
  .step-item { padding: 24px 16px; }
  .guide-card .card-body { padding: 22px 18px; }
  .cta-btn { width: 100%; justify-content: center; }
}

/* roulang page: category2 */
:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #dbeafe;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --bg-body: #f8fafc;
  --bg-dark: #0f172a;
  --bg-card: #ffffff;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 4px 16px rgba(0,0,0,.04);
  --shadow-md: 0 4px 20px rgba(0,0,0,.07);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.09);
  --spacer: 4.5rem;
  --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-main);
  background: var(--bg-body);
  color: var(--text-main);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { text-decoration: none; color: inherit; transition: color .2s; }
ul { list-style: none; padding: 0; margin: 0; }
.container { max-width: 1200px; }

/* 导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1050;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226,232,240,.7);
  box-shadow: 0 2px 20px rgba(0,0,0,.04);
}
.site-header .navbar { padding: .8rem 0; min-height: 68px; }
.navbar-brand { display: flex; align-items: center; gap: .6rem; font-weight: 700; font-size: 1.2rem; color: var(--text-main) !important; }
.brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff; font-weight: 800; font-size: 1.15rem;
  box-shadow: 0 4px 12px rgba(37,99,235,.28);
}
.brand-text { letter-spacing: .02em; }
.navbar-nav .nav-link {
  font-weight: 500;
  color: var(--text-muted);
  padding: .5rem 1rem !important;
  border-radius: 8px;
  position: relative;
  transition: color .2s, background .2s;
}
.navbar-nav .nav-link:hover { color: var(--primary); background: rgba(37,99,235,.05); }
.navbar-nav .nav-link.active { color: var(--primary); font-weight: 600; }
.navbar-nav .nav-link.active::after {
  content: ""; position: absolute; left: 1rem; right: 1rem; bottom: 2px;
  height: 2px; border-radius: 2px; background: var(--primary);
}
.btn-accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border: none; color: #fff; font-weight: 600;
  border-radius: 10px; padding: .55rem 1.25rem;
  box-shadow: 0 4px 16px rgba(245,158,11,.3);
  transition: transform .2s, box-shadow .2s;
}
.btn-accent:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245,158,11,.4); }
.navbar-toggler { border: none; padding: .35rem .5rem; }
.navbar-toggler:focus { box-shadow: none; }
.navbar-toggler-icon { background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(30,41,59,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e"); }

/* 页面 Banner */
.page-banner {
  position: relative;
  background: linear-gradient(135deg, rgba(15,23,42,.92), rgba(30,41,59,.78)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: 6rem 0 4.5rem;
  color: #fff;
  overflow: hidden;
}
.page-banner::before {
  content: ""; position: absolute; top: -60%; right: -10%;
  width: 520px; height: 520px; border-radius: 50%;
  background: radial-gradient(circle, rgba(37,99,235,.35), transparent 70%);
  pointer-events: none;
}
.page-banner .container { position: relative; z-index: 2; }
.page-banner .banner-tag {
  display: inline-flex; align-items: center; gap: .4rem;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2);
  color: #93c5fd;
  padding: .35rem .9rem;
  border-radius: 50px;
  font-size: .85rem;
  font-weight: 500;
  backdrop-filter: blur(8px);
  margin-bottom: 1.2rem;
}
.page-banner h1 {
  font-size: 2.6rem;
  font-weight: 800;
  letter-spacing: -.01em;
  margin-bottom: 1rem;
  line-height: 1.25;
}
.page-banner h1 span { color: #fbbf24; }
.page-banner p { font-size: 1.1rem; color: rgba(255,255,255,.75); max-width: 640px; margin-bottom: 0; }
.page-banner .banner-stats { display: flex; gap: 2.5rem; margin-top: 2.2rem; flex-wrap: wrap; }
.banner-stats .stat-num { font-size: 1.6rem; font-weight: 800; color: #fff; line-height: 1.2; }
.banner-stats .stat-label { font-size: .85rem; color: rgba(255,255,255,.6); }

/* 面包屑 */
.crumbs { background: transparent; padding: 1rem 0 .5rem; font-size: .88rem; color: rgba(255,255,255,.55); margin-bottom: 0; }
.crumbs a { color: rgba(255,255,255,.75); }
.crumbs a:hover { color: #fff; }
.crumbs i { font-size: .7rem; margin: 0 .4rem; color: rgba(255,255,255,.35); }

/* 板块 */
.section { padding: var(--spacer) 0; }
.section-head { margin-bottom: 2.5rem; }
.section-head .eyebrow {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: .82rem;
  font-weight: 600;
  padding: .3rem .9rem;
  border-radius: 50px;
  margin-bottom: .8rem;
  letter-spacing: .02em;
}
.section-head h2 { font-size: 2rem; font-weight: 800; margin-bottom: .6rem; letter-spacing: -.01em; }
.section-head p { color: var(--text-muted); max-width: 640px; margin-bottom: 0; font-size: 1rem; }

/* 公告卡片 */
.notice-card {
  background: linear-gradient(135deg, #eff6ff, #f0f9ff);
  border: 1px solid rgba(37,99,235,.15);
  border-radius: var(--radius);
  padding: 2rem 2.2rem;
  position: relative;
  overflow: hidden;
}
.notice-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: linear-gradient(180deg, var(--primary), #60a5fa);
  border-radius: 4px;
}
.notice-card .notice-label { font-size: .8rem; font-weight: 700; color: var(--primary); letter-spacing: .08em; text-transform: uppercase; margin-bottom: .5rem; }
.notice-card h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: .6rem; }
.notice-card p { color: var(--text-muted); margin-bottom: 1rem; max-width: 80%; }
.notice-card .btn-outline-primary {
  border: 1.5px solid var(--primary); color: var(--primary);
  border-radius: 10px; padding: .45rem 1.3rem; font-weight: 600; font-size: .9rem;
  transition: all .2s;
}
.notice-card .btn-outline-primary:hover { background: var(--primary); color: #fff; }
.notice-card .notice-date { position: absolute; top: 2rem; right: 2.2rem; text-align: center; }
.notice-date .day { font-size: 1.8rem; font-weight: 800; color: var(--primary); line-height: 1; }
.notice-date .month { font-size: .8rem; color: var(--text-muted); text-transform: uppercase; }

/* 资讯卡片 */
.news-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.news-card .news-thumb { position: relative; overflow: hidden; aspect-ratio: 16/10; background: #f1f5f9; }
.news-card .news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.news-card:hover .news-thumb img { transform: scale(1.05); }
.news-card .news-thumb .badge-date {
  position: absolute; left: 1rem; bottom: 1rem;
  background: rgba(15,23,42,.75); backdrop-filter: blur(6px);
  color: #fff; font-size: .78rem; padding: .25rem .8rem;
  border-radius: 50px; font-weight: 500;
}
.news-card .news-body { padding: 1.5rem 1.5rem 1.8rem; flex: 1; display: flex; flex-direction: column; }
.news-card .news-cat { font-size: .78rem; font-weight: 600; color: var(--primary); text-transform: uppercase; letter-spacing: .05em; margin-bottom: .5rem; display: flex; align-items: center; gap: .4rem; }
.news-card h3 { font-size: 1.15rem; font-weight: 700; line-height: 1.5; margin-bottom: .7rem; }
.news-card h3 a:hover { color: var(--primary); }
.news-card p { color: var(--text-muted); font-size: .92rem; line-height: 1.7; flex: 1; margin-bottom: 1.2rem; }
.news-card .news-meta { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid #f1f5f9; padding-top: 1rem; font-size: .82rem; color: var(--text-muted); }
.news-card .news-meta .news-source { display: flex; align-items: center; gap: .4rem; }

/* 置顶资讯 */
.feature-news {
  background: var(--bg-dark);
  border-radius: 20px;
  overflow: hidden;
  color: #fff;
  position: relative;
  box-shadow: var(--shadow-lg);
}
.feature-news .feature-bg { position: absolute; inset: 0; z-index: 0; }
.feature-news .feature-bg img { width: 100%; height: 100%; object-fit: cover; opacity: .35; }
.feature-news .feature-content { position: relative; z-index: 2; padding: 3rem; max-width: 560px; }
.feature-news .feature-tag {
  display: inline-block; background: rgba(245,158,11,.2);
  color: #fbbf24; font-size: .78rem; font-weight: 700;
  padding: .3rem .9rem; border-radius: 50px; margin-bottom: 1.2rem;
  letter-spacing: .05em; border: 1px solid rgba(245,158,11,.3);
}
.feature-news h2 { font-size: 1.8rem; font-weight: 800; line-height: 1.35; margin-bottom: 1rem; }
.feature-news p { color: rgba(255,255,255,.7); font-size: 1rem; line-height: 1.75; margin-bottom: 1.8rem; }
.feature-news .btn-light { border-radius: 10px; font-weight: 600; padding: .6rem 1.5rem; border: none; }
.feature-news .btn-light:hover { background: #f1f5f9; }
.feature-news .btn-ghost { border-radius: 10px; font-weight: 600; padding: .6rem 1.5rem; background: transparent; border: 1px solid rgba(255,255,255,.3); color: #fff; margin-left: .8rem; transition: all .2s; }
.feature-news .btn-ghost:hover { border-color: #fff; background: rgba(255,255,255,.1); }

/* 数据统计 */
.stats-section {
  background: linear-gradient(135deg, #1e3a8a, #1e40af, #2563eb);
  padding: 3.5rem 0;
  border-radius: 0;
}
.stats-section .stat-box { text-align: center; padding: 1rem 0; }
.stats-section .stat-box .icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: rgba(255,255,255,.12); display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1rem; font-size: 1.3rem; color: #fbbf24;
  border: 1px solid rgba(255,255,255,.15);
}
.stats-section .num { font-size: 2.1rem; font-weight: 800; color: #fff; line-height: 1.2; }
.stats-section .label { color: rgba(255,255,255,.65); font-size: .88rem; margin-top: .2rem; }

/* 分类页独特：时间线 */
.timeline { position: relative; padding-left: 2rem; }
.timeline::before {
  content: ""; position: absolute; left: .55rem; top: .5rem; bottom: .5rem;
  width: 2px; border-radius: 2px; background: linear-gradient(180deg, var(--primary), rgba(37,99,235,.2));
}
.timeline-item { position: relative; margin-bottom: 1.8rem; padding: 1.5rem 1.8rem; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); transition: box-shadow .2s, transform .2s; }
.timeline-item:hover { box-shadow: var(--shadow-md); transform: translateX(4px); }
.timeline-item::before {
  content: ""; position: absolute; left: -1.65rem; top: 1.8rem;
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--primary); border: 2.5px solid #fff; box-shadow: 0 0 0 2.5px var(--primary), 0 2px 6px rgba(37,99,235,.3);
}
.timeline-item .tl-date { font-size: .8rem; color: var(--primary); font-weight: 600; letter-spacing: .03em; margin-bottom: .35rem; display: flex; align-items: center; gap: .4rem; }
.timeline-item h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: .4rem; }
.timeline-item p { color: var(--text-muted); font-size: .92rem; margin-bottom: 0; }

/* FAQ */
.faq-item { border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg-card); margin-bottom: 1rem; overflow: hidden; box-shadow: var(--shadow-sm); }
.faq-item .faq-q { padding: 1.2rem 1.6rem; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; transition: background .2s; font-size: 1rem; }
.faq-item .faq-q:hover { background: #f8fafc; }
.faq-item .faq-q i { color: var(--primary); transition: transform .25s; font-size: .88rem; }
.faq-item.active .faq-q i { transform: rotate(180deg); }
.faq-item .faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; border-top: 1px solid transparent; }
.faq-item.active .faq-a { max-height: 300px; border-top-color: var(--border); }
.faq-item .faq-a-inner { padding: 1rem 1.6rem 1.4rem; color: var(--text-muted); font-size: .95rem; line-height: 1.8; }

/* CTA */
.cta-section { padding: var(--spacer) 0; }
.cta-box {
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 60%, #3b82f6 100%);
  border-radius: 24px;
  padding: 3.5rem 3rem;
  color: #fff;
  position: relative;
  overflow: hidden;
  text-align: center;
}
.cta-box::before {
  content: ""; position: absolute; top: -80%; right: -20%;
  width: 480px; height: 480px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.12), transparent 65%);
}
.cta-box::after {
  content: ""; position: absolute; bottom: -100%; left: -10%;
  width: 400px; height: 400px; border-radius: 50%;
  background: radial-gradient(circle, rgba(245,158,11,.18), transparent 60%);
}
.cta-box .cta-inner { position: relative; z-index: 2; }
.cta-box h2 { font-size: 2rem; font-weight: 800; margin-bottom: .8rem; }
.cta-box p { font-size: 1.05rem; color: rgba(255,255,255,.75); max-width: 560px; margin: 0 auto 2rem; }
.cta-box .btn-white {
  background: #fff; color: var(--primary-dark); border: none;
  border-radius: 12px; font-weight: 700; font-size: 1rem;
  padding: .75rem 2rem; box-shadow: 0 8px 30px rgba(255,255,255,.2);
  transition: all .2s;
}
.cta-box .btn-white:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(255,255,255,.3); color: var(--primary); }
.cta-box .btn-outline-light {
  background: transparent; border: 1.5px solid rgba(255,255,255,.45); color: #fff;
  border-radius: 12px; font-weight: 600; font-size: 1rem;
  padding: .75rem 2rem; margin-left: 1rem; transition: all .2s;
}
.cta-box .btn-outline-light:hover { background: rgba(255,255,255,.1); border-color: #fff; }

/* 页脚 */
.site-footer { background: #0f172a; color: rgba(255,255,255,.7); padding: 4.5rem 0 0; }
.site-footer h5 { color: #fff; font-size: 1rem; font-weight: 600; margin-bottom: 1.2rem; }
.site-footer ul li { margin-bottom: .55rem; }
.site-footer ul li a { color: rgba(255,255,255,.6); font-size: .9rem; transition: color .2s; }
.site-footer ul li a:hover { color: #fff; }
.footer-brand { display: flex; align-items: center; gap: .6rem; font-size: 1.15rem; font-weight: 700; color: #fff; margin-bottom: 1rem; }
.footer-brand .brand-mark { width: 36px; height: 36px; font-size: 1.05rem; }
.site-footer p { font-size: .92rem; color: rgba(255,255,255,.55); line-height: 1.75; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); margin-top: 3rem; padding: 1.4rem 0; text-align: center; }
.footer-bottom p { margin: 0; font-size: .88rem; color: rgba(255,255,255,.45); }

/* 响应式 */
@media (max-width: 1024px) {
  :root { --spacer: 3.5rem; }
  .page-banner h1 { font-size: 2.1rem; }
  .feature-news .feature-content { padding: 2.2rem; }
}
@media (max-width: 768px) {
  .page-banner { padding: 4.5rem 0 3.5rem; }
  .page-banner h1 { font-size: 1.75rem; }
  .section-head h2 { font-size: 1.6rem; }
  .stats-section .stat-box { padding: 1.5rem 0; }
  .cta-box { padding: 2.5rem 1.5rem; }
  .cta-box h2 { font-size: 1.5rem; }
  .cta-box .btn-outline-light { margin-left: 0; margin-top: .8rem; }
  .notice-card .notice-date { position: static; text-align: left; margin-bottom: 1rem; }
  .notice-card p { max-width: 100%; }
  .feature-news .feature-content { padding: 1.8rem 1.5rem; }
  .timeline { padding-left: 1.5rem; }
  .timeline-item { padding: 1.2rem; }
  .timeline-item::before { left: -1.4rem; }
}
@media (max-width: 576px) {
  :root { --spacer: 2.8rem; }
  .page-banner h1 { font-size: 1.5rem; }
  .page-banner .banner-stats { gap: 1.2rem; }
  .banner-stats .stat-num { font-size: 1.3rem; }
  .section-head h2 { font-size: 1.4rem; }
  .news-card .news-body { padding: 1.2rem 1.2rem 1.4rem; }
  .notice-card { padding: 1.5rem; }
  .cta-box { border-radius: 16px; }
  .timeline { padding-left: 1.2rem; }
  .timeline-item::before { left: -1.12rem; }
}

/* roulang page: article */
:root {
  --primary: #6c5ce7;
  --primary-dark: #5a4bc4;
  --primary-light: #e8e4fb;
  --secondary: #00b8d9;
  --secondary-light: #e0f7fc;
  --accent: #f8b84e;
  --accent-light: #fff6e6;
  --dark: #1b1535;
  --body-bg: #f7f7fd;
  --white: #ffffff;
  --text-main: #20203a;
  --text-muted: #6b6b8d;
  --border-color: #e6e4f2;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 50px;
  --shadow-sm: 0 4px 16px rgba(30, 30, 70, 0.06);
  --shadow-md: 0 8px 30px rgba(30, 30, 70, 0.08);
  --shadow-lg: 0 18px 48px rgba(30, 30, 70, 0.12);
  --transition-fast: all 0.2s ease;
  --transition-base: all 0.3s ease;
  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-base);
  background-color: var(--body-bg);
  color: var(--text-main);
  line-height: 1.75;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { color: var(--primary); transition: var(--transition-base); }
a:hover { color: var(--primary-dark); text-decoration: none; }

.site-header {
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(230, 228, 242, 0.7);
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 1080;
  box-shadow: 0 4px 20px rgba(30, 30, 70, 0.04);
}
.navbar { padding: 0; }
.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--text-main);
  letter-spacing: 0.02em;
}
.navbar-brand:hover { color: var(--text-main); }
.brand-mark {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border-radius: 12px;
  font-size: 1.1rem;
  font-weight: 800;
  box-shadow: 0 8px 20px rgba(108, 92, 231, 0.28);
}
.navbar .nav-link {
  color: var(--text-main);
  font-weight: 500;
  padding: 8px 16px !important;
  border-radius: 12px;
  transition: var(--transition-base);
  font-size: 0.95rem;
}
.navbar .nav-link:hover {
  color: var(--primary);
  background: rgba(108, 92, 231, 0.07);
}
.navbar .nav-link.active {
  color: var(--primary-dark);
  background: var(--primary-light);
  font-weight: 600;
}
.navbar-toggler {
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 6px 12px;
}
.navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.18); }
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(32,32,58,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.btn-accent {
  background: linear-gradient(135deg, var(--primary), #a855f7);
  border: none;
  color: #fff;
  padding: 10px 24px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.92rem;
  box-shadow: 0 6px 20px rgba(108, 92, 231, 0.32);
  transition: var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn-accent:hover {
  transform: translateY(-2px);
  color: #fff;
  box-shadow: 0 12px 30px rgba(108, 92, 231, 0.42);
}
.btn-accent:focus, .btn-accent:active { color: #fff; outline: none; box-shadow: 0 0 0 4px rgba(108, 92, 231, 0.2); }

.article-hero {
  position: relative;
  padding: 90px 0 90px;
  background-size: cover;
  background-position: center;
  color: #fff;
  overflow: hidden;
}
.article-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(27, 21, 53, 0.92), rgba(76, 45, 156, 0.82), rgba(0, 184, 217, 0.55));
  z-index: 1;
}
.article-hero .container { position: relative; z-index: 2; }
.breadcrumb-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  margin-bottom: 20px;
  color: rgba(255, 255, 255, 0.75);
}
.breadcrumb-nav a { color: rgba(255, 255, 255, 0.75); text-decoration: none; }
.breadcrumb-nav a:hover { color: #fff; }
.breadcrumb-nav .sep { opacity: 0.5; }
.breadcrumb-nav .current { color: #fff; font-weight: 500; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 18px;
}
.article-hero h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
  max-width: 900px;
  letter-spacing: 0.02em;
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}
.hero-desc {
  font-size: 1.05rem;
  max-width: 760px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 22px;
  line-height: 1.8;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
}
.hero-meta span { display: inline-flex; align-items: center; gap: 6px; }

.article-body-section {
  padding: 56px 0 30px;
}
.article-main-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(230, 228, 242, 0.7);
  box-shadow: var(--shadow-md);
  padding: 42px;
  margin-bottom: 30px;
  position: relative;
  overflow: hidden;
}
.article-main-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
}
.article-content {
  font-size: 1.02rem;
  line-height: 1.95;
  color: #334155;
}
.article-content p { margin-bottom: 1.2em; }
.article-content h2,
.article-content h3,
.article-content h4 {
  margin-top: 30px;
  margin-bottom: 14px;
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.4;
}
.article-content h2 { font-size: 1.5rem; }
.article-content h3 { font-size: 1.25rem; }
.article-content img {
  border-radius: var(--radius-md);
  margin: 18px 0;
  box-shadow: var(--shadow-sm);
}
.article-content ul,
.article-content ol { padding-left: 1.4em; margin: 1em 0; }
.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--primary-light);
  padding: 16px 20px;
  border-radius: 0 14px 14px 0;
  margin: 20px 0;
  color: var(--text-main);
}
.article-content a { color: var(--primary); font-weight: 500; text-decoration: underline; text-underline-offset: 3px; }
.article-tags {
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--body-bg);
  border: 1px solid var(--border-color);
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.84rem;
  color: var(--text-muted);
  transition: var(--transition-base);
}
.tag-chip:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary-dark);
}
.article-footer-note {
  margin-top: 28px;
  background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
  border-radius: var(--radius-md);
  padding: 18px 22px;
  font-size: 0.92rem;
  color: var(--text-main);
  line-height: 1.7;
}
.not-found-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px dashed var(--border-color);
  padding: 60px 40px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.not-found-card i {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: 18px;
  opacity: 0.6;
}
.not-found-card h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
}
.not-found-card p { color: var(--text-muted); margin-bottom: 16px; }

.article-sidebar { padding-left: 8px; }
.sidebar-card {
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid rgba(230, 228, 242, 0.7);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  margin-bottom: 24px;
  transition: var(--transition-base);
}
.sidebar-card:hover { box-shadow: var(--shadow-md); }
.sidebar-card h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-main);
}
.sidebar-card h4 i { color: var(--primary); }
.quick-link-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 16px;
  margin-bottom: 10px;
  background: var(--body-bg);
  border-radius: 12px;
  color: var(--text-main);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.93rem;
  border-left: 3px solid var(--primary);
  transition: var(--transition-base);
}
.quick-link-item:last-child { margin-bottom: 0; }
.quick-link-item:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
  transform: translateX(4px);
}
.sidebar-list { list-style: none; padding: 0; margin: 0; }
.sidebar-list li {
  border-bottom: 1px dashed var(--border-color);
  padding: 12px 0;
}
.sidebar-list li:last-child { border-bottom: 0; }
.sidebar-list a {
  text-decoration: none;
  color: var(--text-main);
  display: block;
  transition: var(--transition-base);
}
.sidebar-list a:hover { color: var(--primary); padding-left: 5px; }
.sidebar-list-title {
  display: block;
  font-weight: 500;
  font-size: 0.93rem;
  line-height: 1.55;
  margin-bottom: 4px;
}
.sidebar-list-meta { font-size: 0.8rem; color: var(--text-muted); }
.status-card {
  background: linear-gradient(135deg, #f0f9ff, #faf5ff);
  border: 1px solid rgba(0, 184, 217, 0.12);
}
.status-dot {
  width: 10px;
  height: 10px;
  background: #22c55e;
  border-radius: 50%;
  display: inline-block;
  margin-right: 8px;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.15); }
  50% { box-shadow: 0 0 0 8px rgba(34, 197, 94, 0.08); }
}
.status-card p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 16px; }

.related-section {
  padding: 56px 0 30px;
  background: linear-gradient(180deg, transparent, rgba(108, 92, 231, 0.04));
}
.section-head { margin-bottom: 36px; }
.section-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 5px 16px;
  border-radius: 50px;
  margin-bottom: 10px;
  letter-spacing: 0.02em;
}
.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-weight: 800;
  color: var(--text-main);
  margin: 0;
  letter-spacing: 0.01em;
}
.content-card {
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid rgba(230, 228, 242, 0.7);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition-base);
  display: flex;
  flex-direction: column;
}
.content-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(108, 92, 231, 0.3);
}
.content-card-img {
  height: 180px;
  overflow: hidden;
  position: relative;
}
.content-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.content-card:hover .content-card-img img { transform: scale(1.05); }
.content-card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.badge.bg-soft-primary {
  background: var(--primary-light);
  color: var(--primary-dark);
  font-weight: 600;
  font-size: 0.75rem;
  padding: 5px 12px;
  border-radius: 50px;
  align-self: flex-start;
  margin-bottom: 12px;
}
.content-card-body h3 {
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 10px;
}
.content-card-body h3 a {
  color: var(--text-main);
  text-decoration: none;
  transition: var(--transition-base);
}
.content-card-body h3 a:hover { color: var(--primary); }
.content-card-body p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-link {
  margin-top: auto;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.card-link:hover { color: var(--primary-dark); gap: 10px; }

.category-section {
  padding: 56px 0 30px;
}
.category-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(230, 228, 242, 0.7);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.category-card-img {
  height: 150px;
  overflow: hidden;
  position: relative;
}
.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(1.06); }
.category-card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.category-card-body h3 {
  font-size: 1.12rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-main);
}
.category-card-body p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 14px;
  flex: 1;
}
.category-link {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--primary-dark);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.category-link:hover { gap: 10px; color: var(--primary); }

.faq-section {
  padding: 56px 0 30px;
  background: linear-gradient(180deg, transparent, rgba(0, 184, 217, 0.04));
}
.accordion-item {
  border: 1px solid rgba(230, 228, 242, 0.7);
  border-radius: var(--radius-md) !important;
  overflow: hidden;
  margin-bottom: 14px;
  background: var(--white);
  box-shadow: var(--shadow-sm);
}
.accordion-button {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-main);
  background: var(--white);
  padding: 18px 22px;
  transition: var(--transition-base);
}
.accordion-button:not(.collapsed) {
  background: var(--primary-light);
  color: var(--primary-dark);
  box-shadow: none;
}
.accordion-button:focus {
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15);
  border-color: transparent;
}
.accordion-button::after { background-size: 1.1rem; }
.accordion-body {
  padding: 18px 22px;
  color: var(--text-muted);
  line-height: 1.8;
  font-size: 0.95rem;
}

.cta-section {
  position: relative;
  padding: 80px 0;
  background-size: cover;
  background-position: center;
  color: #fff;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(27, 21, 53, 0.9), rgba(108, 92, 231, 0.75), rgba(0, 184, 217, 0.5));
  z-index: 1;
}
.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}
.cta-content h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  font-weight: 800;
  margin-bottom: 16px;
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}
.cta-content p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 28px;
  line-height: 1.8;
}
.cta-btn {
  background: #fff;
  color: var(--primary-dark);
  padding: 13px 34px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
  transition: var(--transition-base);
}
.cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.2);
  color: var(--primary-dark);
}

.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 64px 0 30px;
  margin-top: 40px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.footer-brand .brand-mark {
  width: 40px;
  height: 40px;
  font-size: 1.15rem;
}
.site-footer p { font-size: 0.9rem; line-height: 1.8; }
.site-footer h5 {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer ul li { margin-bottom: 10px; }
.site-footer ul a {
  color: rgba(255, 255, 255, 0.65);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition-fast);
}
.site-footer ul a:hover { color: #fff; padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  margin-top: 40px;
  text-align: center;
}
.footer-bottom p { font-size: 0.85rem; color: rgba(255, 255, 255, 0.5); }

@media (max-width: 1199.98px) {
  .article-sidebar { padding-left: 0; }
}
@media (max-width: 991.98px) {
  .navbar-collapse {
    background: var(--white);
    border-radius: 16px;
    padding: 18px 20px;
    margin-top: 12px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
  }
  .navbar .nav-link { padding: 10px 14px !important; }
  .navbar .nav-item { margin: 2px 0; }
  .article-main-card { padding: 28px; }
  .article-body-section { padding-top: 40px; }
  .article-hero { padding: 64px 0; }
  .cta-section { padding: 60px 0; }
}
@media (max-width: 767.98px) {
  .article-main-card { padding: 24px; border-radius: 18px; }
  .hero-meta { gap: 12px; }
  .content-card-img { height: 160px; }
  .category-card-img { height: 140px; }
}
@media (max-width: 575.98px) {
  .site-header { padding: 10px 0; }
  .navbar-brand { font-size: 1rem; }
  .brand-mark { width: 34px; height: 34px; font-size: 1rem; }
  .article-hero { padding: 48px 0 56px; }
  .article-hero h1 { font-size: 1.6rem; }
  .hero-desc { font-size: 0.96rem; }
  .article-main-card { padding: 20px; border-radius: 16px; }
  .article-content { font-size: 0.96rem; }
  .sidebar-card { padding: 18px; }
  .section-head h2 { font-size: 1.5rem; }
  .cta-section { padding: 48px 0; }
  .cta-content h2 { font-size: 1.6rem; }
  .cta-btn { padding: 11px 26px; font-size: 0.95rem; }
  .site-footer { padding-top: 44px; }
}

/* roulang page: category3 */
:root{
  --primary:#4658e8;
  --primary-dark:#3545c9;
  --secondary:#7c5cf0;
  --accent:#f59e0b;
  --body-bg:#f4f5fb;
  --surface:#ffffff;
  --surface-soft:#eef0fb;
  --text:#1e2333;
  --text-muted:#6b7294;
  --border:#e3e7f5;
  --radius:20px;
  --radius-sm:12px;
  --radius-xs:8px;
  --shadow-sm:0 4px 14px rgba(30,35,51,.06);
  --shadow:0 16px 40px rgba(48,60,120,.12);
  --shadow-lg:0 24px 60px rgba(48,60,120,.18);
  --font:'PingFang SC','Microsoft YaHei','Segoe UI',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--body-bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul{list-style:none}
.container{max-width:1200px;padding-left:24px;padding-right:24px}
.btn{
  border-radius:50px;
  padding:12px 28px;
  font-weight:600;
  font-size:.95rem;
  transition:all .25s ease;
  border:2px solid transparent;
}
.btn:focus,.btn:focus-visible{outline:3px solid rgba(70,88,232,.25);outline-offset:2px;box-shadow:none}
.btn-accent{
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;
  border:none;
  box-shadow:0 8px 24px rgba(70,88,232,.28);
}
.btn-accent:hover,.btn-accent:focus{
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 14px 32px rgba(70,88,232,.36);
}
.btn-accent:active{transform:translateY(0);box-shadow:0 6px 16px rgba(70,88,232,.26)}
.btn-ghost{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.45);
}
.btn-ghost:hover,.btn-ghost:focus{
  background:rgba(255,255,255,.12);
  border-color:#fff;
  color:#fff;
  transform:translateY(-2px);
}
.btn-light-brand{
  background:#fff;
  color:var(--primary);
  border:none;
  box-shadow:var(--shadow-sm);
}
.btn-light-brand:hover,.btn-light-brand:focus{
  color:var(--primary-dark);
  transform:translateY(-2px);
  box-shadow:var(--shadow);
}
.btn-sm{padding:9px 22px;font-size:.88rem}

.site-header{
  position:sticky;
  top:0;
  z-index:1050;
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(227,231,245,.7);
}
.site-header .navbar{padding:.8rem 0}
.navbar-brand{display:flex;align-items:center;gap:.65rem;font-weight:700;font-size:1.12rem;color:var(--text)}
.navbar-brand:hover,.navbar-brand:focus{color:var(--primary)}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;font-size:1.06rem;font-weight:700;
  box-shadow:0 8px 20px rgba(70,88,232,.3);
}
.brand-text{background:linear-gradient(135deg,var(--text),var(--primary));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.navbar-nav .nav-item{margin:0 .28rem}
.navbar-nav .nav-link{
  color:var(--text);
  font-weight:500;
  font-size:.92rem;
  padding:.55rem 1rem;
  border-radius:50px;
  transition:all .22s ease;
  position:relative;
}
.navbar-nav .nav-link:hover,.navbar-nav .nav-link:focus{
  color:var(--primary);
  background:rgba(70,88,232,.08);
}
.navbar-nav .nav-link.active{
  color:var(--primary);
  background:rgba(70,88,232,.1);
  font-weight:600;
}
.navbar-nav .nav-link.active::after{
  content:'';
  position:absolute;
  left:18px;right:18px;bottom:2px;
  height:3px;border-radius:3px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
}
.navbar-toggler{
  border:none;
  border-radius:var(--radius-xs);
  padding:.4rem .6rem;
  background:var(--surface-soft);
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(70,88,232,.2)}
.navbar-toggler-icon{
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%234658e8' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

.page-hero{
  position:relative;
  padding:120px 0 92px;
  background:linear-gradient(135deg,rgba(15,21,36,.86),rgba(70,88,232,.72)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color:#fff;
  overflow:hidden;
}
.page-hero::before{
  content:'';
  position:absolute;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(124,92,240,.35),transparent 70%);
  top:-120px;right:-80px;
  pointer-events:none;
}
.page-hero::after{
  content:'';
  position:absolute;
  width:260px;height:260px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(245,158,11,.2),transparent 70%);
  bottom:-90px;left:8%;
  pointer-events:none;
}
.hero-breadcrumb{
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  font-size:.86rem;
  color:rgba(255,255,255,.75);
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.14);
  backdrop-filter:blur(8px);
  border-radius:50px;
  padding:.35rem 1.1rem;
  margin-bottom:1.6rem;
}
.hero-breadcrumb a{color:rgba(255,255,255,.85);transition:color .2s}
.hero-breadcrumb a:hover{color:#fff}
.page-hero h1{
  font-size:2.9rem;
  font-weight:800;
  line-height:1.25;
  letter-spacing:-.5px;
  margin-bottom:1.2rem;
  max-width:680px;
}
.page-hero p.lead{
  font-size:1.12rem;
  color:rgba(255,255,255,.85);
  max-width:620px;
  margin-bottom:2rem;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:1rem;
  margin-top:2rem;
}
.hero-points span{
  display:inline-flex;
  align-items:center;
  gap:.45rem;
  font-size:.88rem;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.16);
  border-radius:50px;
  padding:.4rem 1rem;
  color:rgba(255,255,255,.9);
}
.hero-points i{color:var(--accent)}

.section{padding:96px 0}
.section-head{
  margin-bottom:52px;
}
.section-head .badge-soft{
  display:inline-block;
  background:rgba(70,88,232,.09);
  color:var(--primary);
  font-size:.82rem;
  font-weight:600;
  padding:.35rem 1.2rem;
  border-radius:50px;
  margin-bottom:.9rem;
  letter-spacing:.5px;
}
.section-head h2{
  font-size:2.15rem;
  font-weight:800;
  margin-bottom:.9rem;
  letter-spacing:-.4px;
  color:var(--text);
}
.section-head p{
  color:var(--text-muted);
  font-size:1.02rem;
  max-width:560px;
}
.section-head.text-center p{margin-left:auto;margin-right:auto}

.download-card{
  border:none;
  border-radius:var(--radius);
  background:var(--surface);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  height:100%;
  transition:transform .3s ease,box-shadow .3s ease;
}
.download-card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-lg);
}
.download-card .card-thumb{
  height:220px;
  overflow:hidden;
  position:relative;
}
.download-card .card-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.download-card:hover .card-thumb img{transform:scale(1.06)}
.download-card .card-thumb .thumb-tag{
  position:absolute;
  top:16px;left:16px;
  background:rgba(255,255,255,.92);
  color:var(--primary);
  font-size:.78rem;
  font-weight:600;
  border-radius:50px;
  padding:.25rem .9rem;
  box-shadow:var(--shadow-sm);
}
.download-card .card-body{padding:1.8rem 1.5rem 1.6rem}
.download-card .card-body h3{
  font-size:1.28rem;
  font-weight:700;
  margin-bottom:.6rem;
}
.download-card .card-body p{
  color:var(--text-muted);
  font-size:.92rem;
  line-height:1.7;
  margin-bottom:1.1rem;
}
.download-card .icon-circle{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:52px;height:52px;
  border-radius:16px;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;
  font-size:1.3rem;
  margin-bottom:1.2rem;
  box-shadow:0 10px 22px rgba(70,88,232,.24);
}
.download-card .card-link{
  display:inline-flex;
  align-items:center;
  gap:.45rem;
  color:var(--primary);
  font-weight:600;
  font-size:.92rem;
  transition:gap .25s ease;
}
.download-card .card-link:hover,.download-card .card-link:focus{gap:.8rem}

.steps-section{
  background:linear-gradient(180deg,var(--surface-soft),#f4f5fb);
}
.step-item{
  background:var(--surface);
  border-radius:var(--radius);
  padding:2rem 1.6rem;
  height:100%;
  box-shadow:var(--shadow-sm);
  position:relative;
  border:1px solid rgba(227,231,245,.5);
  transition:transform .3s ease,box-shadow .3s ease;
}
.step-item:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow);
}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:48px;height:48px;
  border-radius:14px;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;
  font-size:1.12rem;
  font-weight:700;
  margin-bottom:1.2rem;
  box-shadow:0 8px 20px rgba(70,88,232,.25);
}
.step-item h3{
  font-size:1.1rem;
  font-weight:700;
  margin-bottom:.5rem;
}
.step-item p{
  color:var(--text-muted);
  font-size:.9rem;
  line-height:1.65;
  margin-bottom:0;
}
.step-arrow{
  position:absolute;
  top:50%;
  right:-22px;
  transform:translateY(-50%);
  color:var(--primary);
  font-size:1rem;
  z-index:2;
  display:none;
}
@media(min-width:992px){
  .step-arrow{display:block}
}

.platform-card{
  background:var(--surface);
  border-radius:var(--radius);
  padding:2rem;
  height:100%;
  border:1px solid rgba(227,231,245,.5);
  box-shadow:var(--shadow-sm);
  transition:transform .3s ease,box-shadow .3s ease;
  display:flex;
  flex-direction:column;
}
.platform-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.platform-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:56px;height:56px;
  border-radius:16px;
  background:var(--surface-soft);
  color:var(--primary);
  font-size:1.5rem;
  margin-bottom:1.2rem;
}
.platform-card h3{
  font-size:1.15rem;
  font-weight:700;
  margin-bottom:.45rem;
}
.platform-card .version{
  font-size:.84rem;
  color:var(--accent);
  font-weight:600;
  margin-bottom:.8rem;
}
.platform-card p{
  color:var(--text-muted);
  font-size:.9rem;
  flex:1;
}
.platform-card .status-badge{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  font-size:.8rem;
  color:var(--primary);
  background:rgba(70,88,232,.08);
  border-radius:50px;
  padding:.28rem 1rem;
  width:fit-content;
  margin-top:1rem;
}

.device-showcase{
  background:var(--surface);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  height:100%;
  position:relative;
}
.device-showcase img{
  width:100%;
  height:100%;
  min-height:420px;
  object-fit:cover;
}
.device-showcase .showcase-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(0deg,rgba(15,21,36,.65),transparent 70%);
}
.device-showcase .showcase-text{
  position:absolute;
  left:1.8rem;right:1.8rem;bottom:1.6rem;
  color:#fff;
}
.device-showcase .showcase-text h3{
  font-size:1.4rem;
  font-weight:700;
  margin-bottom:.35rem;
}
.device-showcase .showcase-text p{
  font-size:.9rem;
  color:rgba(255,255,255,.8);
  margin-bottom:0;
}

.stats-row{
  margin-top:3rem;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  border-radius:var(--radius);
  padding:2.5rem 2rem;
  color:#fff;
  box-shadow:0 20px 50px rgba(70,88,232,.3);
}
.stat-item{
  text-align:center;
  padding:1rem .5rem;
}
.stat-item .num{
  font-size:2rem;
  font-weight:800;
  line-height:1.2;
}
.stat-item .label{
  font-size:.88rem;
  color:rgba(255,255,255,.75);
  margin-top:.25rem;
}

.tips-section{
  background:var(--surface-soft);
}
.tips-card{
  background:var(--surface);
  border-radius:var(--radius);
  padding:2rem;
  height:100%;
  border-left:4px solid var(--accent);
  box-shadow:var(--shadow-sm);
  transition:transform .3s ease,box-shadow .3s ease;
}
.tips-card:hover{transform:translateX(6px);box-shadow:var(--shadow)}
.tips-card .tips-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:12px;
  background:rgba(245,158,11,.12);
  color:var(--accent);
  font-size:1.1rem;
  margin-bottom:1rem;
}
.tips-card h3{
  font-size:1.08rem;
  font-weight:700;
  margin-bottom:.5rem;
}
.tips-card p{
  color:var(--text-muted);
  font-size:.9rem;
  margin-bottom:0;
}

.faq-section{}
.faq-wrap{
  max-width:860px;
  margin:0 auto;
}
.faq-card{
  background:var(--surface);
  border:1px solid rgba(227,231,245,.6);
  border-radius:var(--radius-sm);
  margin-bottom:1rem;
  overflow:hidden;
  transition:box-shadow .25s ease;
}
.faq-card:hover{box-shadow:var(--shadow-sm)}
.faq-card summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  list-style:none;
  cursor:pointer;
  padding:1.35rem 1.6rem;
  font-weight:600;
  font-size:1rem;
  transition:background .2s;
}
.faq-card summary::-webkit-details-marker{display:none}
.faq-card summary:hover{background:#f8f9ff}
.faq-card summary .faq-icon{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:30px;height:30px;
  border-radius:50%;
  background:rgba(70,88,232,.08);
  color:var(--primary);
  transition:transform .3s ease,background .3s ease;
}
.faq-card details[open] summary .faq-icon{
  transform:rotate(45deg);
  background:var(--primary);
  color:#fff;
}
.faq-card .faq-answer{
  padding:0 1.6rem 1.5rem;
  color:var(--text-muted);
  font-size:.95rem;
  line-height:1.75;
  border-top:1px dashed var(--border);
  margin:0 1.6rem 0;
  padding-top:1rem;
  padding-bottom:1.3rem;
}

.cta-section{
  padding:90px 0;
  background:linear-gradient(135deg,rgba(15,21,36,.9),rgba(70,88,232,.8)),url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta-section .cta-inner{
  max-width:720px;
  margin:0 auto;
  text-align:center;
}
.cta-section h2{
  font-size:2.2rem;
  font-weight:800;
  margin-bottom:1rem;
}
.cta-section p{
  color:rgba(255,255,255,.82);
  font-size:1.05rem;
  margin-bottom:2rem;
}
.cta-section .btn-accent{
  background:#fff;
  color:var(--primary);
  box-shadow:0 10px 30px rgba(0,0,0,.2);
}
.cta-section .btn-accent:hover{color:var(--primary-dark);box-shadow:0 16px 40px rgba(0,0,0,.28)}
.cta-section .btn-ghost{margin-left:.8rem}

.site-footer{
  background:#0f1524;
  color:rgba(255,255,255,.75);
  padding:70px 0 0;
  font-size:.92rem;
}
.site-footer .footer-brand{
  display:flex;
  align-items:center;
  gap:.65rem;
  font-size:1.2rem;
  font-weight:700;
  color:#fff;
  margin-bottom:1.2rem;
}
.site-footer .brand-mark{
  width:42px;height:42px;
  font-size:1.1rem;
}
.site-footer p{
  font-size:.9rem;
  line-height:1.75;
  color:rgba(255,255,255,.6);
  max-width:320px;
}
.site-footer h5{
  color:#fff;
  font-size:.95rem;
  font-weight:600;
  margin-bottom:1.2rem;
}
.site-footer ul li{margin-bottom:.6rem}
.site-footer ul a{
  color:rgba(255,255,255,.6);
  transition:color .25s, padding-left .25s;
  font-size:.9rem;
}
.site-footer ul a:hover,.site-footer ul a:focus{
  color:#fff;
  padding-left:5px;
}
.footer-bottom{
  margin-top:3.2rem;
  border-top:1px solid rgba(255,255,255,.08);
  padding:1.4rem 0;
  text-align:center;
  font-size:.84rem;
  color:rgba(255,255,255,.4);
}
.footer-bottom p{margin:0;font-size:.84rem}

@media(max-width:1024px){
  .page-hero{padding:100px 0 72px}
  .page-hero h1{font-size:2.4rem}
  .section{padding:80px 0}
  .section-head h2{font-size:1.85rem}
  .cta-section h2{font-size:1.9rem}
}
@media(max-width:768px){
  .site-header .navbar{padding:.65rem 0}
  .navbar-collapse{
    background:rgba(255,255,255,.98);
    border-radius:var(--radius-sm);
    padding:1rem;
    margin-top:1rem;
    box-shadow:var(--shadow);
  }
  .navbar-nav .nav-link{padding:.65rem 1rem}
  .navbar-nav .nav-link.active::after{left:16px;right:auto;width:28px}
  .navbar-nav .nav-item.ms-lg-3{margin-left:0 !important}
  .navbar-nav .nav-item .btn{width:100%;justify-content:center}
  .page-hero{padding:84px 0 60px;text-align:left}
  .page-hero h1{font-size:2rem}
  .page-hero p.lead{font-size:1rem}
  .hero-points{gap:.6rem}
  .hero-points span{font-size:.8rem;padding:.3rem .9rem}
  .section{padding:64px 0}
  .section-head{margin-bottom:36px}
  .section-head h2{font-size:1.65rem}
  .stats-row{padding:1.8rem 1rem}
  .stat-item .num{font-size:1.5rem}
  .step-arrow{display:none}
  .device-showcase img{min-height:280px}
  .cta-section{padding:70px 0}
  .cta-section h2{font-size:1.6rem}
  .cta-section .btn-ghost{margin-left:0;margin-top:.8rem}
  .site-footer{padding-top:55px}
}
@media(max-width:520px){
  .container{padding-left:18px;padding-right:18px}
  .brand-text{font-size:.98rem}
  .brand-mark{width:34px;height:34px;font-size:.96rem}
  .page-hero{padding:70px 0 52px}
  .page-hero h1{font-size:1.65rem}
  .hero-breadcrumb{font-size:.78rem;padding:.3rem .9rem}
  .section-head h2{font-size:1.45rem}
  .download-card .card-thumb{height:180px}
  .faq-card summary{padding:1.1rem 1.2rem}
  .faq-card .faq-answer{margin:0 1.2rem}
  .footer-bottom p{font-size:.76rem}
}