/* roulang page: index */
:root {
  --primary: #3B82F6;
  --primary-dark: #2563EB;
  --primary-light: #EFF6FF;
  --accent: #FF6A4D;
  --accent-light: #FFF0EC;
  --bg: #F5F7FA;
  --surface: #FFFFFF;
  --text: #101827;
  --muted: #5F6B7A;
  --border: #E3E8EF;
  --dark: #101A2B;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(16,24,40,.04), 0 1px 2px rgba(16,24,40,.02);
  --shadow-hover: 0 12px 32px rgba(16,24,40,.12), 0 4px 8px rgba(16,24,40,.06);
  --container: 1280px;
  --gap: 24px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  background: #fff;
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 768px) {
  .container { padding: 0 16px; }
}
.section-title { font-size: 28px; line-height: 1.3; font-weight: 800; letter-spacing: -0.02em; color: var(--text); margin-bottom: 8px; }
.section-desc { font-size: 15px; color: var(--muted); margin-bottom: 40px; }
@media (max-width: 768px) {
  .section-title { font-size: 22px; }
  .section-desc { font-size: 14px; margin-bottom: 28px; }
}
.section-pad { padding: 96px 0; }
@media (max-width: 768px) {
  .section-pad { padding: 48px 0; }
}
.tag-sm {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 500;
  padding: 2px 10px;
  border-radius: 6px;
  white-space: nowrap;
}
.badge-hot {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 6px;
  line-height: 1.4;
  z-index: 2;
  box-shadow: 0 2px 8px rgba(255,106,77,.35);
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  padding: 12px 26px;
  border-radius: 10px;
  transition: filter .2s ease, transform .1s ease;
  border: none;
  box-shadow: 0 4px 16px rgba(255,106,77,.28);
}
.btn-primary:hover { filter: brightness(1.08); box-shadow: 0 6px 20px rgba(255,106,77,.35); }
.btn-primary:active { transform: translateY(1px); }
.btn-primary:focus-visible { outline: 3px solid rgba(255,106,77,.35); outline-offset: 2px; }
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: #fff;
  font-weight: 500;
  font-size: 15px;
  padding: 12px 26px;
  border: 1.5px solid rgba(255,255,255,.65);
  border-radius: 10px;
  transition: background .2s ease;
}
.btn-secondary:hover { background: rgba(255,255,255,.12); }
.btn-secondary:active { transform: translateY(1px); }
.btn-secondary:focus-visible { outline: 3px solid rgba(255,255,255,.3); outline-offset: 2px; }
.btn-ghost-nav {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--surface);
  color: var(--text);
  font-weight: 600;
  font-size: 14px;
  padding: 9px 20px;
  border-radius: 10px;
  transition: background .2s, box-shadow .2s;
  box-shadow: var(--shadow-sm);
}
.btn-ghost-nav:hover { background: var(--bg); box-shadow: var(--shadow-hover); }
.btn-ghost-nav:active { transform: translateY(1px); }
.btn-ghost-nav:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.btn-nav-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  padding: 9px 22px;
  border-radius: 10px;
  transition: background .2s ease, transform .1s;
  box-shadow: 0 2px 8px rgba(59,130,246,.25);
}
.btn-nav-primary:hover { background: var(--primary-dark); }
.btn-nav-primary:active { transform: translateY(1px); }
.btn-nav-primary:focus-visible { outline: 3px solid rgba(59,130,246,.3); outline-offset: 2px; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
@media (max-width: 768px) {
  .nav-inner { height: 60px; }
}
.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.nav-logo:hover { color: var(--primary); }
.nav-logo svg { flex-shrink: 0; }
.nav-channels { display: flex; gap: 30px; }
.nav-channel {
  font-size: 15px;
  font-weight: 500;
  color: var(--muted);
  padding: 6px 2px;
  position: relative;
  transition: color .2s;
}
.nav-channel::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  transition: width .2s ease;
}
.nav-channel:hover { color: var(--primary); }
.nav-channel:hover::after { width: 100%; }
.nav-channel.active { color: var(--primary); font-weight: 600; }
.nav-channel.active::after { width: 100%; }
.search-box {
  width: 180px;
  height: 40px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 12px;
  background: #F1F3F7;
  border-radius: 10px;
  border: 1px solid transparent;
  transition: width .3s ease, border-color .3s ease, background .3s ease;
}
.search-box:focus-within { width: 240px; border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3px rgba(59,130,246,.1); }
.search-box input {
  border: none;
  outline: none;
  background: transparent;
  width: 100%;
  font-size: 14px;
  color: var(--text);
}
.search-box input::placeholder { color: #9AA5B3; }
.mobile-hidden { display: none; }
@media (min-width: 768px) {
  .mobile-hidden { display: flex; }
}
@media (max-width: 768px) {
  .tablet-hidden { display: none !important; }
}
.mobile-menu {
  background: #fff;
  border-top: 1px solid var(--border);
  padding: 12px 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: 0 10px 24px rgba(16,24,40,.08);
}
.mobile-menu a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 10px 8px;
  border-radius: 8px;
  transition: background .2s;
}
.mobile-menu a:hover { background: var(--bg); }
.mobile-menu a.active { color: var(--primary); background: var(--primary-light); }
.hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
@media (max-width: 768px) {
  .hero { min-height: 60vh; }
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(16,26,43,.80) 0%, rgba(16,26,43,.50) 55%, rgba(16,26,43,.10) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  padding: 100px 0;
  max-width: 680px;
}
@media (max-width: 768px) {
  .hero-content { padding: 60px 0; }
}
.hero-title {
  font-size: 52px;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #fff;
  margin-bottom: 18px;
}
@media (max-width: 768px) {
  .hero-title { font-size: 34px; }
}
.hero-sub {
  font-size: 19px;
  color: rgba(255,255,255,.88);
  line-height: 1.6;
  margin-bottom: 36px;
  max-width: 460px;
}
@media (max-width: 768px) {
  .hero-sub { font-size: 16px; margin-bottom: 28px; }
}
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; }
.card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.card-cover {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: #E8EDF3;
}
.card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .25s ease;
}
.card:hover .card-cover img { transform: scale(1.05); }
.card-cover .overlay {
  position: absolute;
  inset: 0;
  background: rgba(15,23,42,0);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .25s ease;
  opacity: 0;
}
.card-cover:hover .overlay,
.scroll-card:hover .overlay {
  background: rgba(15,23,42,.25);
  opacity: 1;
}
.overlay-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,.92);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  box-shadow: 0 4px 16px rgba(16,24,40,.18);
  transition: transform .2s ease;
}
.card:hover .overlay-icon { transform: scale(1.05); }
.card-body { padding: 16px; }
.card-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
}
.card-body p {
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  font-size: 13px;
  color: var(--muted);
}
.scroll-track {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding: 4px 4px 20px;
  scrollbar-width: none;
  cursor: grab;
  scroll-snap-type: x mandatory;
}
.scroll-track::-webkit-scrollbar { display: none; }
.scroll-track.dragging { cursor: grabbing; }
.scroll-card {
  flex: 0 0 260px;
  scroll-snap-align: start;
}
@media (max-width: 768px) {
  .scroll-card { flex: 0 0 220px; }
}
.hot-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
}
@media (max-width: 1024px) {
  .hot-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .hot-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
}
.hot-card .card-cover { aspect-ratio: 3/4; }
.cate-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
}
@media (max-width: 768px) {
  .cate-layout { grid-template-columns: 1fr; gap: 24px; }
}
.cate-tabs { display: flex; flex-direction: column; gap: 4px; }
@media (max-width: 768px) {
  .cate-tabs { flex-direction: row; overflow-x: auto; padding-bottom: 8px; scrollbar-width: none; }
  .cate-tabs::-webkit-scrollbar { display: none; }
}
.cate-tab {
  display: block;
  width: 100%;
  text-align: left;
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--muted);
  background: transparent;
  border: none;
  transition: background .2s, color .2s;
  white-space: nowrap;
}
.cate-tab:hover { background: var(--text); color: var(--text); }
.cate-tab:hover { background: #F1F3F7; color: var(--text); }
.cate-tab.active { background: var(--primary-light); color: var(--primary-dark); font-weight: 600; }
.cate-list-group { display: flex; flex-direction: column; gap: 16px; }
.cate-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px;
  border-radius: 14px;
  background: var(--surface);
  border: 1px solid transparent;
  transition: box-shadow .2s, border-color .2s, transform .2s;
}
.cate-row:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--border);
  transform: translateY(-2px);
}
.cate-thumb {
  width: 96px;
  height: 68px;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
  background: #E8EDF3;
}
.cate-thumb img { width: 100%; height: 100%; object-fit: cover; }
.cate-row-main { flex: 1; min-width: 0; }
.cate-row-main h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color .2s;
}
.cate-row:hover .cate-row-main h3 { color: var(--primary); }
.cate-row-main p {
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cta-dark {
  position: relative;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  border-radius: 20px;
  overflow: hidden;
  padding: 80px 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
@media (max-width: 768px) {
  .cta-dark { padding: 48px 28px; }
}
.cta-dark::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(16,26,43,.92) 0%, rgba(16,26,43,.68) 100%);
}
.cta-dark > * { position: relative; z-index: 1; }
.cta-dark h2 {
  font-size: 30px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}
@media (max-width: 768px) {
  .cta-dark h2 { font-size: 24px; }
}
.cta-dark p { color: rgba(255,255,255,.78); font-size: 15px; }
.news-list { display: flex; flex-direction: column; }
.news-row {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 8px;
  border-bottom: 1px solid var(--border);
  transition: background .2s;
  border-radius: 8px;
}
.news-row:hover { background: #F8FAFC; }
.news-row:first-child { padding-top: 8px; }
.news-main { flex: 1; min-width: 0; }
.news-main h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color .2s;
}
.news-row:hover .news-main h3 { color: var(--primary); }
.news-main p {
  font-size: 14px;
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.news-meta span:last-child {
  font-size: 13px;
  color: #9AA5B3;
}
@media (max-width: 768px) {
  .news-row { flex-direction: column; align-items: flex-start; gap: 8px; }
  .news-meta { width: 100%; justify-content: space-between; }
}
.empty-state {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 48px 0;
  color: var(--muted);
  font-size: 15px;
  background: #F8FAFC;
  border-radius: 14px;
  border: 1px dashed var(--border);
}
.faq-list { max-width: 780px; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 20px 0;
  background: transparent;
  border: none;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  transition: color .2s;
}
.faq-q:hover { color: var(--primary); }
.faq-q:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 6px; }
.faq-q svg { transition: transform .25s ease; color: var(--muted); flex-shrink: 0; }
.faq-item.open .faq-q svg { transform: rotate(45deg); color: var(--primary); }
.faq-item.open .faq-q { color: var(--primary); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height .3s ease, opacity .3s ease;
}
.faq-item.open .faq-a {
  max-height: 320px;
  opacity: 1;
  padding-bottom: 20px;
}
.faq-a p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.8;
}
.site-footer {
  background: var(--dark);
  color: #B6C2D1;
  margin-top: 0;
}
.footer-top {
  padding: 64px 0 40px;
  display: grid;
  grid-template-columns: 1.4fr repeat(4, 1fr);
  gap: 40px;
}
@media (max-width: 1024px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .footer-top { grid-template-columns: 1fr; gap: 32px; padding: 48px 0 24px; }
}
.footer-brand p {
  font-size: 14px;
  color: #8B98A9;
  margin-top: 12px;
  max-width: 260px;
  line-height: 1.7;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: #8B98A9;
  padding: 6px 0;
  transition: color .2s;
}
.footer-col a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 24px 0;
  font-size: 13px;
  color: #6E7D90;
  text-align: center;
}
.footer-bottom span { margin: 0 4px; }
.form-input {
  width: 100%;
  height: 44px;
  background: #F1F3F7;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 0 14px;
  font-size: 14px;
  color: var(--text);
  transition: border-color .2s, background .2s;
}
.form-input:focus {
  outline: none;
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(59,130,246,.1);
}
.form-input::placeholder { color: #9AA5B3; }
.btn-outline-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
  font-weight: 600;
  font-size: 14px;
  padding: 10px 22px;
  border-radius: 10px;
  transition: background .2s, color .2s;
}
.btn-outline-primary:hover { background: var(--primary); color: #fff; }
.btn-outline-primary:focus-visible { outline: 3px solid rgba(59,130,246,.3); outline-offset: 2px; }
@media (max-width: 768px) {
  .hot-grid .card-body { padding: 12px; }
  .hot-grid .card-body h3 { font-size: 15px; }
  .hot-grid .card-body p { font-size: 12px; }
}

/* roulang page: article */
:root {
  --primary: #3B82F6;
  --primary-dark: #2563EB;
  --accent: #FF6A4D;
  --accent-hover: #E8533A;
  --bg: #F5F7FA;
  --surface: #FFFFFF;
  --text: #101827;
  --text-secondary: #5F6B7A;
  --border: #E3E8EF;
  --dark: #101A2B;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(16,24,40,.04), 0 1px 2px rgba(16,24,40,.02);
  --shadow-hover: 0 12px 32px rgba(16,24,40,.12), 0 4px 8px rgba(16,24,40,.06);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  font-family: var(--font);
  background: var(--surface);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input { font-family: inherit; }
input:focus-visible, button:focus-visible, a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  height: 72px;
  background: rgba(255,255,255,.86);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 50;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.02em;
  color: var(--text);
  white-space: nowrap;
}
.nav-logo svg { flex-shrink: 0; }
.nav-channels {
  display: flex;
  gap: 28px;
}
.nav-channel {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 2px;
  transition: color .2s ease;
  white-space: nowrap;
}
.nav-channel::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width .2s ease;
  border-radius: 2px;
}
.nav-channel:hover { color: var(--text); }
.nav-channel:hover::after { width: 100%; }
.nav-channel.active { color: var(--primary); font-weight: 600; }
.nav-channel.active::after { width: 100%; }
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 180px;
  height: 40px;
  padding: 0 14px;
  background: #F1F3F7;
  border-radius: 10px;
  border: 1px solid transparent;
  transition: width .25s ease, border-color .25s ease, background .25s ease;
}
.search-box:focus-within {
  width: 240px;
  background: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59,130,246,.12);
}
.search-box input {
  flex: 1;
  min-width: 0;
  border: none;
  background: transparent;
  font-size: 14px;
  color: var(--text);
  outline: none;
}
.search-box input::placeholder { color: #9AA4B2; }
.search-icon { color: var(--text-secondary); flex-shrink: 0; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-radius: 10px;
  padding: 10px 20px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s ease;
  white-space: nowrap;
  border: none;
  line-height: 1.4;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(255,106,77,.32);
}
.btn-primary:active { transform: translateY(0); }
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover {
  background: rgba(59,130,246,.08);
  border-color: var(--primary);
  color: var(--primary);
}
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: background .2s ease;
}
.mobile-toggle:hover { background: #F1F3F7; }
.mobile-menu {
  display: none;
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 12px 24px 20px;
  flex-direction: column;
  gap: 4px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: 11px 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 1px solid #F1F3F7;
  transition: color .2s ease;
}
.mobile-menu a:hover,
.mobile-menu a.active { color: var(--primary); }
.mobile-menu a:last-of-type { border-bottom: none; }
.mobile-search { margin-top: 12px; }
.mobile-search input {
  width: 100%;
  height: 42px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #F5F7FA;
  padding: 0 14px;
  font-size: 14px;
  outline: none;
  transition: border-color .2s ease, background .2s ease;
}
.mobile-search input:focus { border-color: var(--primary); background: #fff; }

/* Breadcrumb */
.breadcrumb-bar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}
.breadcrumb a { color: var(--text-secondary); transition: color .2s ease; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: #C5CCD6; }
.breadcrumb .current {
  color: var(--text);
  font-weight: 500;
  max-width: 360px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Article */
.article-section {
  padding: 48px 0 72px;
  background: var(--bg);
  min-height: 60vh;
}
.article-wrap {
  max-width: 860px;
  margin: 0 auto;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 48px 48px 40px;
}
.article-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 32px;
}
.article-header h1 {
  font-size: 32px;
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 16px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 20px;
  font-size: 14px;
  color: var(--text-secondary);
}
.article-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.article-body {
  max-width: 720px;
  margin: 0 auto;
  font-size: 17px;
  line-height: 1.9;
  color: var(--text);
  word-break: break-word;
}
.article-body p { margin-bottom: 24px; }
.article-body h2 {
  font-size: 24px;
  font-weight: 700;
  margin: 40px 0 16px;
  line-height: 1.4;
}
.article-body h3 {
  font-size: 19px;
  font-weight: 600;
  margin: 32px 0 12px;
}
.article-body ul,
.article-body ol {
  margin: 0 0 24px;
  padding-left: 24px;
}
.article-body li { margin-bottom: 8px; }
.article-body img {
  border-radius: 12px;
  margin: 24px 0;
  max-width: 100%;
  height: auto;
}
.article-body blockquote {
  border-left: 4px solid var(--primary);
  background: #F5F7FA;
  padding: 16px 20px;
  border-radius: 0 10px 10px 0;
  margin: 24px 0;
  color: var(--text-secondary);
}
.article-body a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-body code {
  background: #F1F3F7;
  padding: 2px 6px;
  border-radius: 6px;
  font-size: .9em;
}
.not-found-box {
  text-align: center;
  padding: 60px 20px;
}
.not-found-box svg {
  width: 48px;
  height: 48px;
  color: #C5CCD6;
  margin: 0 auto 16px;
}
.not-found-box p {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
}
.not-found-box a {
  color: var(--primary);
  font-size: 15px;
  font-weight: 500;
  transition: opacity .2s ease;
}
.not-found-box a:hover { opacity: .75; }
.article-cover {
  max-width: 720px;
  margin: 40px auto 0;
}
.article-cover img {
  width: 100%;
  border-radius: 12px;
}

/* Related */
.related-section {
  max-width: 860px;
  margin: 48px auto 0;
}
.section-heading {
  text-align: center;
  margin-bottom: 28px;
}
.section-heading h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all .25s ease;
  display: block;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.card-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: #E3E8EF;
}
.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.related-card:hover .card-media img { transform: scale(1.05); }
.card-media .badge-hot,
.card-media .badge-new {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 2;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 8px rgba(0,0,0,.15);
}
.card-media .badge-new { background: var(--primary); }
.card-body { padding: 16px; }
.card-body h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
  transition: color .2s ease;
}
.related-card:hover .card-body h3 { color: var(--primary); }
.card-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Back links */
.back-links {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 40px;
  font-size: 14px;
  color: var(--text-secondary);
}
.back-links a {
  color: var(--primary);
  font-weight: 500;
  transition: opacity .2s ease;
}
.back-links a:hover { opacity: .75; text-decoration: underline; text-underline-offset: 3px; }

/* Footer */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,.7);
  padding: 56px 0 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 40px;
}
.footer-brand p {
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255,255,255,.55);
  max-width: 280px;
}
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 14px;
}
.footer-col a {
  display: block;
  color: rgba(255,255,255,.55);
  font-size: 14px;
  padding: 4px 0;
  transition: color .2s ease;
}
.footer-col a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,.45);
}
.footer-bottom .container {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* Responsive */
@media (max-width: 1024px) {
  .footer-top { grid-template-columns: 1fr 1fr; gap: 24px; }
  .related-grid { gap: 16px; }
}
@media (max-width: 768px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .site-header { height: 60px; }
  .header-inner { height: 60px; }
  .mobile-toggle { display: inline-flex; }
  .article-section { padding: 32px 0 48px; }
  .article-wrap { padding: 32px 20px 28px; border-radius: 12px; }
  .article-header h1 { font-size: 26px; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .breadcrumb .current { max-width: 220px; }
}
@media (max-width: 520px) {
  .footer-top { grid-template-columns: 1fr; }
  .article-header h1 { font-size: 22px; }
  .article-body { font-size: 16px; }
  .article-wrap { padding: 24px 16px; }
  .article-meta { gap: 8px 14px; font-size: 13px; }
  .back-links { flex-direction: column; align-items: center; gap: 8px; }
}

/* roulang page: category1 */
:root {
            --primary: #3B82F6;
            --primary-dark: #2563EB;
            --primary-light: #DBEAFE;
            --accent: #FF6A4D;
            --accent-light: #FFF1ED;
            --bg-light: #F5F7FA;
            --bg-white: #FFFFFF;
            --text-dark: #101827;
            --text-secondary: #5F6B7A;
            --border-light: #E3E8EF;
            --dark-block: #101A2B;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-tag: 6px;
            --shadow-sm: 0 1px 3px rgba(16, 24, 40, .04), 0 1px 2px rgba(16, 24, 40, .02);
            --shadow-lg: 0 12px 32px rgba(16, 24, 40, .12), 0 4px 8px rgba(16, 24, 40, .06);
            --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: var(--font-main);
            background: #fff;
            color: var(--text-dark);
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        input {
            font-family: inherit;
        }
        .container {
            width: 100%;
            max-width: 80rem;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .86);
            -webkit-backdrop-filter: blur(14px);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-light);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 16px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 18px;
            color: var(--text-dark);
            letter-spacing: -.02em;
            flex-shrink: 0;
        }
        .nav-logo:hover {
            color: var(--primary);
        }
        .nav-channels {
            display: flex;
            align-items: center;
            gap: 28px;
            margin: 0 12px;
        }
        .nav-channel {
            position: relative;
            font-size: 15px;
            color: var(--text-secondary);
            font-weight: 500;
            padding: 8px 2px;
            transition: color .2s ease;
            white-space: nowrap;
        }
        .nav-channel::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: right;
            transition: transform .2s ease;
        }
        .nav-channel:hover {
            color: var(--primary);
        }
        .nav-channel:hover::after {
            transform: scaleX(1);
            transform-origin: left;
        }
        .nav-channel.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-channel.active::after {
            transform: scaleX(1);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-box {
            display: none;
            align-items: center;
            background: #F1F3F7;
            border-radius: 10px;
            padding: 0 12px;
            height: 40px;
            width: 180px;
            transition: width .3s ease, border-color .3s ease, background .3s ease;
            border: 1px solid transparent;
        }
        @media (min-width: 1280px) {
            .search-box {
                display: flex;
            }
        }
        .search-box:focus-within {
            width: 240px;
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(59, 130, 246, .1);
        }
        .search-icon {
            color: #9AA5B1;
            flex-shrink: 0;
        }
        .search-input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            color: var(--text-dark);
            width: 100%;
            margin-left: 8px;
        }
        .search-input::placeholder {
            color: #9AA5B1;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 600;
            border-radius: 10px;
            padding: 10px 20px;
            transition: all .25s ease;
            border: none;
            white-space: nowrap;
        }
        .btn:focus-visible,
        .nav-toggle:focus-visible,
        .filter-chip:focus-visible,
        .faq-question:focus-visible {
            outline: 3px solid rgba(59, 130, 246, .4);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(59, 130, 246, .25);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(59, 130, 246, .3);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(59, 130, 246, .2);
        }
        .btn-ghost {
            background: transparent;
            color: var(--text-dark);
            border: 1.5px solid var(--border-light);
        }
        .btn-ghost:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(59, 130, 246, .05);
        }
        .btn-ghost:active {
            transform: translateY(0);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 2px 8px rgba(255, 106, 77, .25);
        }
        .btn-accent:hover {
            background: #F2553A;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(255, 106, 77, .3);
        }
        .btn-accent:active {
            transform: translateY(0);
        }
        .nav-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            border: 1px solid var(--border-light);
            background: #fff;
            color: var(--text-dark);
            transition: all .2s ease;
        }
        .nav-toggle:hover {
            background: var(--bg-light);
        }
        .mobile-menu {
            display: none;
            border-top: 1px solid var(--border-light);
            background: #fff;
            padding: 8px 16px;
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease;
        }
        .mobile-menu.open {
            max-height: 300px;
        }
        @media (max-width: 767px) {
            .mobile-menu {
                display: block;
            }
        }
        .mobile-link {
            display: block;
            padding: 12px 4px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-light);
            transition: color .2s ease;
        }
        .mobile-link:last-child {
            border-bottom: none;
        }
        .mobile-link:hover,
        .mobile-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .page-hero {
            background: linear-gradient(135deg, rgba(59, 130, 246, .08) 0%, rgba(245, 247, 250, .95) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 80px 0 56px;
            border-bottom: 1px solid var(--border-light);
        }
        .breadcrumb {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 16px;
            letter-spacing: .02em;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color .2s ease;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .page-hero h1 {
            font-size: 42px;
            font-weight: 800;
            letter-spacing: -.03em;
            line-height: 1.2;
            margin: 0 0 12px;
            color: var(--text-dark);
        }
        .page-hero .hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 460px;
            line-height: 1.6;
            margin: 0;
        }
        @media (max-width: 768px) {
            .page-hero {
                padding: 48px 0 40px;
            }
            .page-hero h1 {
                font-size: 30px;
            }
            .page-hero .hero-desc {
                font-size: 15px;
            }
        }
        .section-block {
            padding: 72px 0;
        }
        .section-block.tight {
            padding: 48px 0;
        }
        .section-header {
            margin-bottom: 32px;
        }
        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            letter-spacing: -.02em;
            margin: 0 0 8px;
            color: var(--text-dark);
        }
        .section-header p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
        }
        @media (max-width: 768px) {
            .section-block {
                padding: 48px 0;
            }
            .section-header h2 {
                font-size: 22px;
            }
        }
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 36px;
        }
        .filter-chip {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 500;
            border-radius: 100px;
            border: 1px solid var(--border-light);
            background: #fff;
            color: var(--text-secondary);
            transition: all .25s ease;
        }
        .filter-chip:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(59, 130, 246, .04);
        }
        .filter-chip.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(59, 130, 246, .25);
        }
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        @media (max-width: 1023px) {
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .guide-grid {
                grid-template-columns: 1fr;
            }
        }
        .guide-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: transform .25s ease, box-shadow .25s ease;
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .guide-cover {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            aspect-ratio: 16/9;
        }
        .guide-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .35s ease;
        }
        .guide-card:hover .guide-img {
            transform: scale(1.05);
        }
        .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            background: rgba(255, 255, 255, .92);
            -webkit-backdrop-filter: blur(4px);
            backdrop-filter: blur(4px);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-tag);
            letter-spacing: .02em;
        }
        .guide-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(15, 23, 42, 0);
            transition: background .25s ease;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }
        .guide-card:hover .guide-cover::after {
            background: rgba(15, 23, 42, .18);
        }
        .cover-play {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%) scale(.8);
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .95);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            opacity: 0;
            transition: all .25s ease;
            z-index: 3;
            box-shadow: 0 4px 16px rgba(16, 24, 40, .15);
        }
        .guide-card:hover .cover-play {
            opacity: 1;
            transform: translate(-50%, -50%) scale(1);
        }
        .guide-body {
            padding: 18px 18px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .guide-title {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
            margin: 0 0 8px;
            color: var(--text-dark);
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color .2s ease;
        }
        .guide-card:hover .guide-title {
            color: var(--primary);
        }
        .guide-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0 0 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .guide-meta {
            font-size: 13px;
            color: #9AA5B1;
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid var(--border-light);
            padding-top: 12px;
        }
        .stats-section {
            background: linear-gradient(135deg, rgba(16, 26, 43, .94), rgba(16, 26, 43, .86)), url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            padding: 72px 0;
            position: relative;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px 16px;
            }
        }
        .stat-item {
            text-align: center;
            padding: 16px 8px;
        }
        .stat-number {
            font-size: 44px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -.02em;
            line-height: 1.1;
        }
        .stat-number em {
            font-style: normal;
            color: var(--accent);
        }
        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, .72);
            margin-top: 6px;
            letter-spacing: .02em;
        }
        @media (max-width: 640px) {
            .stat-number {
                font-size: 34px;
            }
        }
        .featured-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        @media (max-width: 768px) {
            .featured-grid {
                grid-template-columns: 1fr;
            }
        }
        .featured-card {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            min-height: 260px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow-sm);
            transition: transform .25s ease, box-shadow .25s ease;
        }
        .featured-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .featured-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .35s ease;
        }
        .featured-card:hover img {
            transform: scale(1.05);
        }
        .featured-overlay {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 28px;
            background: linear-gradient(to top, rgba(16, 26, 43, .85) 0%, rgba(16, 26, 43, .4) 60%, transparent 100%);
            color: #fff;
        }
        .featured-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            background: rgba(255, 255, 255, .18);
            -webkit-backdrop-filter: blur(4px);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, .2);
            color: #fff;
            padding: 3px 10px;
            border-radius: 100px;
            margin-bottom: 10px;
        }
        .featured-overlay h3 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.35;
            margin: 0 0 8px;
            letter-spacing: -.01em;
        }
        .featured-overlay p {
            font-size: 14px;
            color: rgba(255, 255, 255, .82);
            margin: 0;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        @media (max-width: 1023px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
        }
        .step-item {
            background: var(--bg-light);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            transition: transform .25s ease, box-shadow .25s ease;
            border: 1px solid transparent;
        }
        .step-item:hover {
            background: #fff;
            border-color: var(--border-light);
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .step-num {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }
        .step-item h3 {
            font-size: 16px;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-dark);
        }
        .step-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 0;
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border-light);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: transparent;
            border: none;
            padding: 20px 4px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            text-align: left;
            transition: color .2s ease;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            flex-shrink: 0;
            color: var(--text-secondary);
            transition: transform .3s ease, color .2s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            opacity: 0;
            transition: max-height .3s ease, opacity .3s ease, padding .3s ease;
            padding: 0 4px;
        }
        .faq-item.open .faq-answer {
            max-height: 260px;
            opacity: 1;
            padding: 0 4px 20px;
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        .cta-section {
            background: linear-gradient(135deg, rgba(59, 130, 246, .1) 0%, rgba(245, 247, 250, .98) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 72px 0;
            text-align: center;
            border-top: 1px solid var(--border-light);
        }
        .cta-section h2 {
            font-size: 30px;
            font-weight: 800;
            letter-spacing: -.02em;
            margin: 0 0 12px;
            color: var(--text-dark);
        }
        .cta-section p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 auto 32px;
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .cta-section h2 {
                font-size: 24px;
            }
            .cta-section p {
                font-size: 15px;
            }
        }
        .site-footer {
            background: var(--dark-block);
            color: rgba(255, 255, 255, .72);
            padding: 56px 0 0;
            font-size: 14px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        @media (max-width: 1023px) {
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 32px 24px;
            }
        }
        @media (max-width: 640px) {
            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .footer-brand p {
            margin: 14px 0 0;
            font-size: 14px;
            color: rgba(255, 255, 255, .62);
            max-width: 260px;
            line-height: 1.6;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 16px;
            letter-spacing: .02em;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, .62);
            font-size: 14px;
            padding: 6px 0;
            transition: color .2s ease;
            line-height: 1.5;
        }
        .footer-col a:hover {
            color: #fff;
            text-decoration: underline;
            text-underline-offset: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-bottom .container {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        @media (max-width: 640px) {
            .footer-bottom .container {
                flex-direction: column;
                gap: 4px;
                text-align: center;
            }
        }
        .img-fallback {
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-light);
            color: #9AA5B1;
            font-size: 14px;
            width: 100%;
            height: 100%;
        }