/* roulang page: index */
:root{
  --primary:#3A7BD5;
  --primary-deep:#2F62A8;
  --primary-soft:#EAF1FA;
  --bg-soft:#F3F6FB;
  --bg-alt:#FAFCFE;
  --white:#FFFFFF;
  --text-main:#2B3A4A;
  --text-sub:#6C7A89;
  --text-light:#8C9AA9;
  --border:#E3EAF3;
  --accent:#FF6A3D;
  --green:#2EB872;
  --danger:#E0493A;
  --radius:18px;
  --radius-sm:12px;
  --shadow-sm:0 1px 2px rgba(14,32,60,.04),0 6px 18px rgba(14,32,60,.06);
  --shadow-md:0 1px 2px rgba(14,32,60,.04),0 12px 30px rgba(14,32,60,.10);
  --shadow-focus:0 0 0 3px rgba(58,123,213,.24);
  --font-stack:PingFang SC,Microsoft YaHei,Noto Sans SC,sans-serif;
  --mono-stack:Consolas,Menlo,SF Mono,monospace;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-stack);
  background:#EDF2F8;
  color:var(--text-main);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;border:none;outline:none}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
::selection{background:var(--primary-soft);color:var(--primary-deep)}

.site-shell{
  display:flex;
  gap:18px;
  align-items:flex-start;
  max-width:1600px;
  margin:0 auto;
  padding:14px;
  min-height:100vh;
}
.sidebar{
  flex:0 0 252px;
  position:sticky;
  top:14px;
  height:calc(100vh - 28px);
  background:var(--white);
  border-radius:22px;
  box-shadow:var(--shadow-sm);
  padding:22px 16px 18px;
  display:flex;
  flex-direction:column;
  z-index:80;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  padding:6px 6px 18px;
}
.brand-mark{
  width:38px;
  height:38px;
  border-radius:12px;
  background:var(--primary);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:19px;
  flex-shrink:0;
}
.brand-text{
  font-size:17.5px;
  font-weight:700;
  line-height:1.3;
  letter-spacing:.3px;
  color:var(--text-main);
}
.brand-tag{
  display:block;
  font-size:11px;
  font-weight:500;
  color:var(--text-light);
  letter-spacing:.4px;
  margin-top:2px;
}
.main-nav{
  display:flex;
  flex-direction:column;
  gap:5px;
  border-top:1px solid var(--bg-soft);
  padding:12px 0 8px;
}
.nav-item{
  display:flex;
  align-items:center;
  gap:11px;
  padding:10px 12px;
  border-radius:11px;
  font-size:14px;
  font-weight:600;
  color:var(--text-sub);
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.nav-item i{width:20px;text-align:center;font-size:15px;color:var(--text-light);transition:color .18s ease}
.nav-item:hover{background:var(--bg-soft);color:var(--primary-deep);transform:translateX(2px)}
.nav-item:hover i{color:var(--primary)}
.nav-item.active{background:var(--primary-soft);color:var(--primary-deep)}
.nav-item.active i{color:var(--primary)}
.sidebar-foot{
  margin-top:auto;
  border-top:1px solid var(--bg-soft);
  padding-top:14px;
}
.user-card{
  display:flex;
  align-items:center;
  gap:11px;
  background:var(--bg-alt);
  border:1px solid var(--bg-soft);
  border-radius:14px;
  padding:12px 12px;
}
.user-avatar{
  width:34px;height:34px;border-radius:50%;
  background:var(--primary-soft);
  color:var(--primary-deep);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;
}
.user-state{font-size:13px;color:var(--text-sub);line-height:1.4}
.login-link{display:inline-block;font-size:13px;font-weight:700;color:var(--primary);margin-top:2px}
.login-link:hover{color:var(--primary-deep)}
.side-tip{
  font-size:11.5px;
  color:var(--text-light);
  margin-top:14px;
  padding:0 4px;
  line-height:1.6;
}
.nav-toggle,.nav-overlay{display:none}

.page-main{
  flex:1;
  min-width:0;
  display:flex;
  flex-direction:column;
  gap:18px;
}
.page-section{
  background:var(--white);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  padding:30px 32px;
  overflow:hidden;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  margin-bottom:20px;
}
.section-head h2{
  font-size:25px;
  font-weight:700;
  line-height:1.3;
  letter-spacing:.2px;
}
.section-head .section-sub{
  color:var(--text-sub);
  font-size:14px;
  margin-top:4px;
}
.section-meta-chip{
  background:var(--bg-soft);
  color:var(--text-sub);
  font-size:13px;
  border-radius:20px;
  padding:6px 13px;
  font-weight:600;
}

.hero{
  position:relative;
  border-radius:var(--radius);
  min-height:410px;
  box-shadow:var(--shadow-sm);
  display:flex;
  align-items:center;
  overflow:hidden;
  padding:44px 42px 40px;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:78% center;
  z-index:0;
}
.hero-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(105deg,rgba(255,255,255,.98) 18%,rgba(255,255,255,.90) 44%,rgba(255,255,255,.26) 100%);
  z-index:1;
}
.hero-content{
  position:relative;
  z-index:2;
  max-width:76%;
}
.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:var(--primary);
  color:#fff;
  border-radius:20px;
  padding:6px 13px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.3px;
  margin-bottom:18px;
  box-shadow:0 6px 18px rgba(58,123,213,.25);
}
.hero-kicker .kd-dot{width:6px;height:6px;border-radius:50%;background:#fff}
.hero-title{
  font-size:36px;
  font-weight:800;
  line-height:1.28;
  color:var(--text-main);
  letter-spacing:.5px;
}
.hero-lead{
  font-size:16px;
  color:var(--text-sub);
  margin-top:14px;
  max-width:600px;
  line-height:1.8;
}
.hero-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  margin-top:24px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:42px;
  padding:0 18px;
  border-radius:10px;
  font-size:14.5px;
  font-weight:700;
  cursor:pointer;
  transition:transform .16s ease,box-shadow .16s ease,background .16s ease,color .16s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(58,123,213,.25)}
.btn-primary:hover{background:#4B89E0;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);background:var(--primary-deep)}
.btn-primary:focus-visible{box-shadow:var(--shadow-focus)}
.btn-ghost{
  background:rgba(255,255,255,.78);
  color:var(--primary-deep);
  border:1px solid rgba(58,123,213,.32);
}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary)}
.btn-ghost:active{transform:translateY(1px)}
.btn-ghost:focus-visible{box-shadow:var(--shadow-focus)}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px 20px;
  margin-top:26px;
  color:var(--text-sub);
  font-size:13px;
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-meta i{color:var(--primary)}
.edge-hint{
  position:absolute;
  right:30px;
  bottom:28px;
  z-index:2;
  background:rgba(255,255,255,.88);
  border:1px solid var(--border);
  border-radius:14px;
  padding:14px 18px;
  text-align:center;
  box-shadow:var(--shadow-sm);
  max-width:190px;
}
.edge-hint .edge-copy{font-size:12px;color:var(--text-sub);line-height:1.6}
.edge-hint .edge-arrow{
  color:var(--primary);
  font-size:15px;
  display:inline-block;
  margin-top:4px;
}
.count-strip{
  background:linear-gradient(100deg,var(--primary-soft),var(--bg-alt));
  border:1px solid var(--border);
}
.count-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
}
.count-label .mini{font-size:12px;color:var(--text-light)}
.count-label strong{display:block;font-size:16px;font-weight:700;margin-top:4px}
.count-time{
  font-size:24px;
  font-weight:800;
  letter-spacing:2px;
  color:var(--primary-deep);
  font-family:var(--mono-stack);
  font-variant-numeric:tabular-nums;
  background:rgba(255,255,255,.65);
  border:1px solid var(--border);
  padding:9px 20px;
  border-radius:12px;
}
.status-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  border-radius:16px;
  font-size:12.5px;
  font-weight:700;
  padding:5px 12px;
  white-space:nowrap;
}
.badge-up{background:var(--accent);color:#fff}
.badge-live{background:var(--green);color:#fff}
.badge-live::before{content:'';width:6px;height:6px;border-radius:50%;background:#fff;animation:pulse-live 1.2s infinite}
@keyframes pulse-live{0%,100%{opacity:1}50%{opacity:.45}}
.badge-replay{background:var(--primary-soft);color:var(--primary-deep)}
.count-actions{display:flex;align-items:center;gap:13px;flex-wrap:wrap}
.btn-soft{
  background:var(--primary);
  color:#fff;
}
.btn-soft:hover{background:var(--primary-deep);transform:translateY(-1px)}
.swipe-scroller{
  display:flex;
  gap:16px;
  overflow-x:auto;
  padding-bottom:12px;
  scroll-snap-type:x mandatory;
  margin:0 -4px;
  scrollbar-width:thin;
  scrollbar-color:var(--primary-soft) transparent;
}
.swipe-scroller::-webkit-scrollbar{height:8px}
.swipe-scroller::-webkit-scrollbar-track{background:transparent;border-radius:10px}
.swipe-scroller::-webkit-scrollbar-thumb{background:var(--primary-soft);border-radius:10px}
.live-card{
  flex:0 0 292px;
  scroll-snap-align:start;
  border:1px solid var(--border);
  border-radius:16px;
  background:#fff;
  padding:10px 10px 14px;
  transition:transform .18s ease,box-shadow .18s ease;
}
.live-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.live-cover{
  position:relative;
  overflow:hidden;
  border-radius:12px;
  aspect-ratio:16 / 9;
  background:linear-gradient(135deg,#DCE6F4,#EDF3FA);
}
.live-cover img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.live-cover .badge{position:absolute;right:10px;bottom:10px;z-index:2}
.live-body{padding:12px 6px 0}
.live-kicker{font-size:12px;color:var(--text-light);font-weight:600;letter-spacing:.4px}
.live-body h3{font-size:16px;font-weight:700;margin:5px 0 7px;line-height:1.5}
.live-body h3 a:hover{color:var(--primary)}
.live-meta{font-size:13px;color:var(--text-sub)}
.scroll-tip{
  font-size:12.5px;
  color:var(--text-light);
  margin-top:4px;
  display:flex;
  align-items:center;
  gap:7px;
}
.focus-grid{
  display:grid;
  grid-template-columns:1.25fr .85fr;
  gap:18px;
}
.focus-card{
  border:1px solid var(--border);
  background:var(--bg-alt);
  border-radius:16px;
  padding:22px 24px;
}
.focus-card.featured{background:var(--white)}
.focus-card.featured::before{
  content:'';
  width:4px;height:52px;border-radius:4px;
  background:var(--accent);
  float:left;
  margin-right:16px;
}
.focus-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  border-radius:16px;
  background:var(--accent);
  color:#fff;
  font-size:12px;
  font-weight:700;
  margin-bottom:10px;
}
.focus-badge.soft{background:var(--primary-soft);color:var(--primary-deep)}
.focus-card h3{font-size:18px;font-weight:700;line-height:1.45;margin-bottom:8px}
.focus-card p{font-size:14px;color:var(--text-sub);line-height:1.85;margin-bottom:14px}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:700;
  color:var(--primary-deep);
  transition:gap .16s ease;
}
.link-arrow:hover{color:var(--primary)}
.link-arrow:hover i{transform:translateX(3px)}
.link-arrow i{transition:transform .16s ease}

.dynamic-posts{display:flex;flex-direction:column;gap:12px}
.news-item{
  border:1px solid var(--border);
  border-radius:15px;
  background:#fff;
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm);border-color:rgba(58,123,213,.25)}
.news-link{
  display:flex;
  align-items:center;
  gap:16px;
  padding:17px 18px;
}
.news-tag{
  flex:0 0 auto;
  background:var(--primary-soft);
  color:var(--primary-deep);
  border-radius:18px;
  padding:5px 12px;
  font-size:12px;
  font-weight:700;
}
.news-main{min-width:0;flex:1}
.news-main h3{
  font-size:16.5px;
  font-weight:700;
  line-height:1.5;
  overflow:hidden;
  text-overflow:ellipsis;
  display:-webkit-box;
  -webkit-line-clamp:1;
  -webkit-box-orient:vertical;
}
.news-main p{
  color:var(--text-sub);
  font-size:13.5px;
  overflow:hidden;
  text-overflow:ellipsis;
  display:-webkit-box;
  -webkit-line-clamp:1;
  -webkit-box-orient:vertical;
  margin-top:3px;
}
.news-meta{
  flex:0 0 auto;
  display:flex;
  align-items:center;
  gap:16px;
  font-size:13px;
  color:var(--text-light);
}
.go-link{color:var(--primary);font-weight:700;white-space:nowrap}
.empty-tip{
  background:var(--bg-soft);
  border-radius:16px;
  padding:32px;
  text-align:center;
  color:var(--text-sub);
  font-size:14px;
  border:1px dashed var(--border);
}
.remind-box{
  background:linear-gradient(120deg,var(--primary-soft),#EEF5FC 70%,#F7FAFD);
  border:1px solid rgba(58,123,213,.12);
  border-radius:20px;
  padding:28px 30px;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:24px;
  align-items:center;
}
.remind-copy h2{font-size:26px;font-weight:800;color:var(--text-main)}
.remind-copy p{color:var(--text-sub);font-size:14px;margin-top:8px;max-width:520px;line-height:1.8}
.remind-form{display:flex;flex-direction:column;gap:10px}
.form-row{display:flex;gap:10px}
.remind-form input{
  height:44px;
  border:1px solid rgba(58,123,213,.3);
  border-radius:10px;
  padding:0 14px;
  background:#fff;
  font-size:14px;
  width:100%;
}
.remind-form input:focus{border-color:var(--primary);box-shadow:var(--shadow-focus)}
.remind-form .btn{height:44px;padding:0 16px}
.field-tip{font-size:12.5px;color:var(--danger);padding-left:2px;display:none}
.field-tip.on{display:block}
.form-success{
  display:none;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--green);
}
.form-success.on{display:flex}
.form-success i{font-size:17px}
.replay-grid{
  display:grid;
  grid-template-columns:1.35fr .65fr;
  gap:24px;
}
.replay-main h2{font-size:23px}
.replay-main .replay-desc{color:var(--text-sub);font-size:14px;margin-top:6px}
.replay-list{display:flex;flex-direction:column;gap:10px;margin-top:20px}
.replay-row{
  display:flex;
  align-items:center;
  gap:14px;
  padding:13px 15px;
  border:1px solid var(--border);
  border-radius:14px;
  transition:background .16s ease,transform .16s ease;
}
.replay-row:hover{background:var(--bg-alt);transform:translateX(3px)}
.replay-date{
  flex:0 0 88px;
  background:var(--bg-soft);
  border-radius:12px;
  text-align:center;
  padding:7px 4px;
}
.replay-date b{display:block;font-size:16px;color:var(--primary-deep)}
.replay-date small{font-size:11px;color:var(--text-light)}
.replay-info{flex:1;min-width:0}
.replay-title{font-weight:700;font-size:15px;line-height:1.5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.replay-duration{font-size:12px;color:var(--text-light);margin-top:2px}
.replay-status{flex:0 0 auto}
.cat-entry{
  background:var(--bg-alt);
  border:1px solid var(--border);
  border-radius:18px;
  padding:18px;
}
.cat-entry h3{font-size:17px;margin-bottom:14px}
.entry-item{
  display:flex;
  align-items:center;
  gap:12px;
  padding:11px 12px;
  border-radius:13px;
  background:#fff;
  margin-bottom:9px;
  transition:transform .16s ease,box-shadow .16s ease;
}
.entry-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.entry-icon{
  flex:0 0 34px;
  width:34px;height:34px;
  border-radius:10px;
  background:var(--primary-soft);
  color:var(--primary-deep);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
}
.entry-label{flex:1;font-size:14px;font-weight:700}
.entry-label small{display:block;color:var(--text-light);font-weight:500;font-size:12px}
.entry-arrow{color:var(--text-light);font-size:13px}
.entry-item:hover .entry-arrow{color:var(--primary);transform:translateX(3px)}
.entry-item:hover .entry-arrow{transition:transform .18s ease}
.faq-list{
  border-top:1px solid var(--border);
}
.faq-item{border-bottom:1px solid var(--border)}
.faq-question{
  width:100%;
  background:transparent;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:16px 2px;
  font-size:15px;
  font-weight:700;
  color:var(--text-main);
  cursor:pointer;
  text-align:left;
}
.faq-question span.txt{line-height:1.5}
.faq-icon{color:var(--primary);font-size:18px;transition:transform .22s ease}
.faq-panel{
  max-height:0;
  overflow:hidden;
  transition:max-height .24s ease;
}
.faq-ans{
  color:var(--text-sub);
  font-size:14px;
  line-height:1.85;
  padding:0 42px 18px 2px;
}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-item.open .faq-ans{color:var(--text-main)}

.footer-card{
  margin:0;
  border-radius:var(--radius);
  background:var(--white);
  box-shadow:var(--shadow-sm);
  padding:26px 30px 24px;
  border-top:3px solid var(--primary-soft);
}
.footer-top{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:20px;
  flex-wrap:wrap;
  padding-bottom:18px;
  border-bottom:1px solid var(--bg-soft);
}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px}
.footer-brand .brand-mark{width:34px;height:34px;font-size:16px}
.footer-quote{font-size:13.5px;color:var(--text-light);max-width:440px;line-height:1.8}
.footer-links{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px 18px;
  font-size:14px;
  font-weight:600;
  color:var(--text-sub);
}
.footer-links a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:var(--text-light);
  padding-top:14px;
}
.footer-bottom .legal{max-width:700px;line-height:1.7}

@media (max-width:1023px){
  .site-shell{flex-direction:column;gap:12px;padding:10px}
  .sidebar{
    position:sticky;
    top:10px;
    width:100%;
    height:auto;
    flex-direction:row;
    flex-wrap:wrap;
    align-items:center;
    padding:14px 16px;
    border-radius:18px;
    box-shadow:var(--shadow-sm);
  }
  .sidebar .brand{padding:4px 0;margin-right:auto}
  .main-nav,.sidebar-foot{display:none;width:100%}
  .main-nav{flex-direction:column;border-top:1px solid var(--bg-soft);margin-top:10px;padding:10px 0 4px}
  .sidebar-foot{display:none;border-top:1px solid var(--bg-soft);margin-top:6px}
  body.nav-open .main-nav,body.nav-open .sidebar-foot{display:flex}
  body.nav-open .sidebar-foot{display:block}
  .nav-item:hover{transform:none}
  .nav-toggle{
    display:inline-flex;
    width:42px;height:42px;
    border-radius:11px;
    background:var(--bg-soft);
    color:var(--text-main);
    align-items:center;
    justify-content:center;
    font-size:19px;
    cursor:pointer;
    margin-left:10px;
  }
  .nav-toggle:hover{background:var(--primary-soft);color:var(--primary)}
  .hero{min-height:380px;padding:36px 30px}
  .hero-content{max-width:100%}
  .hero-title{font-size:30px}
  .edge-hint{display:none}
  .focus-grid{grid-template-columns:1fr}
  .remind-box{grid-template-columns:1fr}
  .replay-grid{grid-template-columns:1fr}
}
@media (max-width:767px){
  body{padding:0}
  .site-shell{padding:8px;gap:10px}
  .sidebar{padding:10px 12px;border-radius:14px}
  .brand-mark{width:34px;height:34px;font-size:16px;border-radius:10px}
  .brand-text{font-size:15.5px}
  .brand-tag{font-size:10px}
  .nav-toggle{width:38px;height:38px;font-size:17px}
  .page-main{gap:10px}
  .page-section{padding:20px 16px;border-radius:16px}
  .hero{padding:26px 18px;border-radius:16px;min-height:0}
  .hero-title{font-size:23px;line-height:1.4}
  .hero-lead{font-size:14.5px;margin-top:12px}
  .hero-actions{margin-top:18px}
  .hero-actions .btn{width:100%;justify-content:center}
  .hero-meta{font-size:12px;gap:8px 14px}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px}
  .section-head h2{font-size:21px}
  .count-inner{flex-direction:column;align-items:flex-start}
  .count-time{width:100%;justify-content:center}
  .count-actions{width:100%}
  .count-actions .btn{flex:1}
  .live-card{flex-basis:238px}
  .news-link{flex-wrap:wrap;gap:10px}
  .news-meta{width:100%;justify-content:space-between}
  .form-row{flex-direction:column}
  .remind-box{padding:20px 16px}
  .remind-copy h2{font-size:22px}
  .footer-card{padding:20px 16px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:400px){
  .hero-kicker{font-size:11px}
  .page-section{padding:18px 14px}
  .replay-row{flex-wrap:wrap}
  .replay-date{flex:0 0 90px}
  .replay-status{width:100%;padding-left:104px}
}

/* roulang page: article */
:root {
  --brand: #3A7BD5;
  --brand-deep: #2F67B0;
  --brand-soft: #EAF1FA;
  --accent: #FF6A3D;
  --green: #2EB872;
  --bg: #F3F6FB;
  --surface: #FAFCFE;
  --surface-white: #FFFFFF;
  --border: #E1E9F2;
  --text-main: #2B3A4A;
  --text-secondary: #6C7A89;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(14, 32, 60, .04), 0 8px 24px rgba(14, 32, 60, .08);
  --shadow-hover: 0 2px 4px rgba(14, 32, 60, .06), 0 16px 32px rgba(14, 32, 60, .12);
  --font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-main);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input { font-family: inherit; font-size: inherit; color: inherit; }
ul, ol { list-style: none; }
::selection { background: rgba(58, 123, 213, .18); }

/* Layout shell */
.site-shell { min-height: 100vh; }
.side-panel {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 60;
  width: 264px;
  height: 100vh;
  background: var(--surface-white);
  border-right: 1px solid var(--border);
  padding: 28px 18px 24px;
  display: flex;
  flex-direction: column;
  gap: 30px;
  overflow-y: auto;
}
.shell-main { margin-left: 264px; min-height: 100vh; display: flex; flex-direction: column; }
.page-main { flex: 1; width: 100%; max-width: 1280px; margin: 0 auto; padding: 40px 48px 64px; }
.boot-bar { display: none; }

/* Brand */
.brand-block { display: flex; align-items: center; gap: 12px; padding: 0 10px 6px; }
.brand-mark {
  width: 44px; height: 44px; border-radius: 12px;
  background: linear-gradient(135deg, rgba(58,123,213,.16), rgba(58,123,213,.05));
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 21px; color: var(--brand); border: 1px solid rgba(58,123,213,.15);
  flex-shrink: 0;
}
.brand-text { font-size: 22px; font-weight: 700; letter-spacing: .5px; line-height: 1.2; }
.brand-sub { font-size: 12px; color: var(--text-secondary); letter-spacing: .2px; }

/* Desktop nav */
.main-nav { display: flex; flex-direction: column; gap: 4px; padding: 0 4px; }
.nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  transition: background .2s ease, color .2s ease, box-shadow .2s ease;
}
.nav-item i { width: 20px; text-align: center; font-size: 16px; opacity: .85; }
.nav-item:hover { background: rgba(58, 123, 213, .06); color: var(--brand-deep); }
.nav-item.active {
  background: var(--brand-soft);
  color: var(--brand-deep);
  font-weight: 600;
  box-shadow: inset 0 0 0 1px rgba(58, 123, 213, .06);
}
.nav-item:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }

.side-user {
  margin-top: auto;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.side-user i { width: 34px; height: 34px; border-radius: 50%; background: var(--surface-white); color: var(--brand); display: inline-flex; align-items: center; justify-content: center; font-size: 14px; border: 1px solid var(--border); }
.side-user-info { font-size: 13px; line-height: 1.4; color: var(--text-secondary); }
.side-user-info strong { font-size: 14px; display: block; color: var(--text-main); font-weight: 600; }
.side-user-info a { color: var(--brand-deep); font-size: 13px; }
.side-note { font-size: 12px; color: var(--text-secondary); line-height: 1.6; padding: 0 10px; }

/* Mobile top bar */
.mobile-bar { display: none; }

/* Article page */
.article-panel {
  background: var(--surface-white);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: clamp(24px, 4.5vw, 56px) clamp(20px, 4vw, 56px);
  max-width: 880px;
  margin: 0 auto;
}
.crumb-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 13px; color: var(--text-secondary); margin-bottom: 20px; }
.crumb-row a { color: var(--brand-deep); font-weight: 500; transition: color .2s ease; }
.crumb-row a:hover { color: var(--brand); }
.crumb-row .sep { color: #BDCDDF; }

.article-eyebrow { display: inline-flex; align-items: center; gap: 7px; background: rgba(46,184,114,.1); color: #1F9B63; font-size: 13px; font-weight: 600; padding: 4px 12px; border-radius: 99px; margin-bottom: 14px; }
.article-eyebrow .live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 3px rgba(46,184,114,.18); }
.article-panel h1 { font-size: clamp(25px, 3vw, 34px); line-height: 1.3; font-weight: 700; color: var(--text-main); letter-spacing: .2px; margin-bottom: 14px; word-break: break-word; }

.post-meta { display: flex; flex-wrap: wrap; gap: 12px 22px; padding: 10px 0 18px; border-bottom: 1px solid var(--border); margin-bottom: 22px; font-size: 13px; color: var(--text-secondary); }
.post-meta i { color: var(--brand); margin-right: 5px; }
.post-meta span { display: inline-flex; align-items: center; }
.meta-cat { color: var(--brand-deep); background: var(--brand-soft); border-radius: 6px; padding: 2px 10px; font-weight: 600; }

/* feature image */
.article-feature { border-radius: 14px; overflow: hidden; margin-bottom: 26px; border: 1px solid #EFF3F8; background: #EDF1F6; }
.article-feature img { width: 100%; height: 340px; object-fit: cover; transition: transform .4s ease; }
.article-feature:hover img { transform: scale(1.015); }

/* article body */
.article-body { font-size: 16px; color: var(--text-main); line-height: 1.9; }
.article-body > * + * { margin-top: 1.1em; }
.article-body p { line-height: 1.85; margin-bottom: 1.15em; }
.article-body a { color: var(--brand-deep); text-decoration: underline; text-decoration-color: rgba(58,123,213,.35); text-underline-offset: 4px; transition: color .2s ease; }
.article-body a:hover { color: var(--brand); }
.article-body h2 { font-size: 21px; font-weight: 700; margin-top: 1.6em; margin-bottom: .7em; padding-left: 12px; border-left: 4px solid var(--brand); line-height: 1.35; }
.article-body h3 { font-size: 18px; font-weight: 600; margin-top: 1.4em; margin-bottom: .8em; }
.article-body blockquote { background: var(--bg); border-left: 4px solid var(--brand); padding: 14px 18px; border-radius: 0 10px 10px 0; color: var(--text-secondary); font-size: 15px; }
.article-body ul { list-style: disc; padding-left: 1.4em; margin-bottom: 1.2em; }
.article-body ul li { margin-bottom: .45em; }
.article-body code { background: #F0F3F8; border: 1px solid #E6ECF4; border-radius: 6px; padding: 2px 7px; font-size: 14px; color: #31547D; }
.article-body pre { background: #F6F8FB; border: 1px solid var(--border); border-radius: 10px; padding: 18px; overflow-x: auto; line-height: 1.7; }
.article-body pre code { background: none; border: none; padding: 0; color: inherit; }
.article-body img { border-radius: 12px; margin: 18px 0; border: 1px solid #EFF3F8; }
.article-body table { width: 100%; border-collapse: collapse; font-size: 14px; background: var(--surface-white); border-radius: 10px; overflow: hidden; margin: 18px 0; }
.article-body table td, .article-body table th { border: 1px solid var(--border); padding: 10px 12px; }
.article-body table th { background: var(--bg); color: var(--text-main); font-weight: 600; }

/* notification */
.notice-row { background: var(--bg); border-radius: 12px; padding: 14px 18px; display: flex; gap: 12px; margin: 1.4em 0 1.8em; border-left: 4px solid var(--accent); font-size: 14px; color: var(--text-secondary); }
.notice-row i { color: var(--accent); margin-top: 4px; flex-shrink: 0; }

/* tags */
.article-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 4px; }
.tag { background: var(--surface); border: 1px solid var(--border); color: var(--text-secondary); font-size: 12px; padding: 3px 11px; border-radius: 30px; transition: all .2s ease; }
.tag:hover { border-color: rgba(58,123,213,.4); color: var(--brand-deep); background: var(--brand-soft); }

/* related section */
.related-section { margin-top: 36px; padding-top: 26px; border-top: 1px solid var(--border); }
.related-head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; }
.related-head h2 { font-size: 19px; font-weight: 700; display: inline-flex; align-items: center; gap: 9px; }
.related-head h2::before { content: ''; width: 8px; height: 18px; border-radius: 4px; background: var(--brand); display: inline-block; }
.related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.related-card { background: var(--surface-white); border: 1px solid var(--border); border-radius: 14px; padding: 20px; display: flex; flex-direction: column; gap: 10px; transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease; box-shadow: 0 1px 2px rgba(14,32,60,.03); }
.related-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); border-color: rgba(58,123,213,.28); }
.related-card .rc-tag { font-size: 12px; color: var(--brand-deep); font-weight: 600; margin-bottom: 2px; letter-spacing: .3px; }
.related-card .rc-title { font-size: 17px; font-weight: 700; color: var(--text-main); line-height: 1.4; margin-bottom: 2px; }
.related-card .rc-title:hover { color: var(--brand-deep); }
.related-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.65; margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card .rc-link { align-self: flex-start; display: inline-flex; align-items: center; gap: 6px; color: var(--brand-deep); font-size: 13px; font-weight: 600; padding-top: 4px; }
.related-card .rc-link i { font-size: 12px; transition: transform .2s ease; }
.related-card:hover .rc-link i { transform: translateX(3px); }
.related-empty { color: var(--text-secondary); font-size: 14px; grid-column: 1 / -1; background: var(--surface); border: 1px dashed var(--border); border-radius: 10px; padding: 16px; text-align: center; }

.article-back { margin: 26px 0 0; font-size: 14px; }
.article-back a { color: var(--text-secondary); display: inline-flex; align-items: center; gap: 7px; transition: color .2s ease; }
.article-back a:hover { color: var(--brand-deep); }
.article-back a i { font-size: 13px; }

/* Not found */
.missing-card { max-width: 820px; margin: 40px auto 60px; background: var(--surface-white); border: 1px solid var(--border); border-radius: 18px; box-shadow: var(--shadow); padding: 54px 32px; text-align: center; }
.missing-card .miss-mark { width: 90px; height: 90px; margin: 0 auto 20px; border-radius: 50%; background: var(--bg); display: flex; align-items: center; justify-content: center; font-size: 36px; color: var(--brand-deep); }
.missing-card h1 { font-size: 25px; font-weight: 700; margin-bottom: 10px; }
.missing-card p { font-size: 15px; color: var(--text-secondary); max-width: 420px; margin: 0 auto 24px; }
.missing-card a { display: inline-block; background: var(--brand); color: #fff; font-weight: 600; font-size: 14px; border-radius: var(--radius-sm); padding: 11px 24px; transition: background .2s ease, transform .1s ease; }
.missing-card a:hover { background: var(--brand-deep); }
.missing-card a:active { transform: translateY(1px); }

/* footer */
.footer-card {
  margin: 0;
  border-top: 1px solid var(--border);
  background: var(--surface-white);
  padding: 28px 48px 22px;
  max-width: none;
  border-radius: 0;
  box-shadow: none;
}
.footer-top { display: flex; flex-wrap: wrap; gap: 20px 36px; align-items: center; justify-content: space-between; max-width: 1180px; margin: 0 auto 16px; }
.footer-brand { display: inline-flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 700; color: var(--text-main); }
.footer-brand .brand-mark { width: 34px; height: 34px; font-size: 16px; border-radius: 9px; }
.footer-quote { color: var(--text-secondary); font-size: 14px; max-width: 420px; line-height: 1.7; }
.footer-links { display: flex; flex-wrap: wrap; gap: 6px 18px; align-items: center; }
.footer-links a { color: var(--text-secondary); font-size: 14px; transition: color .2s ease; padding: 6px 0; }
.footer-links a:hover { color: var(--brand-deep); }
.footer-bottom { max-width: 1180px; margin: 0 auto; padding-top: 16px; border-top: 1px solid var(--border); display: flex; flex-wrap: wrap; gap: 6px 26px; justify-content: space-between; font-size: 12px; color: var(--text-secondary); line-height: 1.6; }
.footer-bottom .legal { max-width: 760px; }

@media (max-width: 1023px) {
  .side-panel { display: none; }
  .shell-main { margin-left: 0; }
  .page-main { padding: 22px 20px 50px; }
  .mobile-bar { position: sticky; top: 0; z-index: 50; display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; background: rgba(255,255,255,.92); backdrop-filter: blur(6px); border-bottom: 1px solid var(--border); gap: 10px; }
  .mobile-brand { display: flex; align-items: center; gap: 8px; }
  .mobile-brand .brand-mark { width: 34px; height: 34px; font-size: 14px; border-radius: 10px; }
  .mobile-brand .brand-text { font-size: 18px; }
  .burger { width: 42px; height: 42px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface-white); display: inline-flex; align-items: center; justify-content: center; font-size: 16px; color: var(--text-main); cursor: pointer; transition: all .2s ease; }
  .burger:hover { background: var(--surface); color: var(--brand-deep); }
  .mobile-nav {
    position: fixed; top: 0; left: 0; width: 284px; height: 100vh; background: var(--surface-white);
    z-index: 80; box-shadow: 4px 0 30px rgba(14,32,60,.12);
    padding: 24px 16px;
    display: none; flex-direction: column; gap: 6px;
    transition: transform .28s ease;
    transform: translateX(-100%);
  }
  .mobile-nav.open { transform: translateX(0); display: flex; }
  .mobile-nav .mv-close { align-self: flex-end; background: none; border: none; font-size: 20px; padding: 8px 12px; color: var(--text-secondary); cursor: pointer; }
  .mobile-nav .main-nav { margin-top: 18px; display: flex; flex-direction: column; gap: 2px; }
  .mobile-nav-overlay { position: fixed; inset: 0; background: rgba(20,30,45,.28); z-index: 70; display: none; }
  .footer-card { padding: 24px 20px 18px; }
}
@media (max-width: 767px) {
  .page-main { padding: 16px 12px 46px; }
  .article-panel { padding: 20px 16px; border-radius: 14px; }
  .article-panel h1 { font-size: 23px; line-height: 1.4; }
  .article-feature img { height: 190px; }
  .post-meta { gap: 8px 14px; font-size: 12px; }
  .related-grid { grid-template-columns: 1fr; gap: 12px; }
  .article-body { font-size: 15px; line-height: 1.85; }
  .footer-top { flex-direction: column; align-items: flex-start; gap: 14px; }
  .footer-quote { max-width: 100%; }
  .footer-links { gap: 4px 14px; }
}

/* roulang page: category1 */
:root{
  --primary:#3A7BD5;
  --primary-strong:#2F6AAD;
  --primary-weak:#EAF1FA;
  --accent:#FF6A3D;
  --success:#2EB872;
  --bg-light:#F3F6FB;
  --card:#ffffff;
  --body:#2B3A4A;
  --muted:#6C7A89;
  --line:#E1E8F2;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow:0 1px 2px rgba(14,32,60,.04),0 8px 24px rgba(14,32,60,.08);
  --shadow-hover:0 4px 10px rgba(14,32,60,.05),0 16px 32px rgba(14,32,60,.12);
  --side-width:252px;
  --font-stack:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-stack);
  color:var(--body);
  background:var(--bg-light);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input{font-family:inherit;font-size:inherit}
.container{max-width:1200px;margin:0 auto}

/* —— 左侧导航 —— */
.site-shell{min-height:100vh}
.side-nav{
  position:fixed;
  inset:0 auto 0 0;
  width:var(--side-width);
  background:#fff;
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  padding:22px 16px 14px;
  z-index:80;
}
.brand-block{display:flex;align-items:center;padding:2px 8px 22px;margin-bottom:10px;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:11px}
.brand-icon{
  width:42px;height:42px;border-radius:13px;
  display:grid;place-items:center;
  background:var(--primary-weak);
  color:var(--primary);
  flex:0 0 42px;
}
.brand-name{display:block;font-weight:700;font-size:18px;color:#1D2B3B;letter-spacing:.2px;line-height:1.35}
.brand-tag{display:block;font-size:12px;color:var(--muted);letter-spacing:.4px}
.main-nav{display:flex;flex-direction:column;gap:5px}
.nav-item{
  display:flex;align-items:center;gap:12px;
  padding:10px 14px;
  border-radius:var(--radius-sm);
  color:var(--body);
  font-weight:500;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.nav-item .ico{width:19px;height:19px}
.nav-item:hover{background:var(--primary-weak);color:var(--primary)}
.nav-item.active{background:var(--primary-weak);color:var(--primary);font-weight:600}
.nav-account{
  margin-top:18px;
  padding:14px;
  background:var(--bg-light);
  border:1px solid #E9EFF7;
  border-radius:var(--radius-md);
}
.nav-login-hint{display:flex;flex-direction:column;gap:2px;margin-bottom:10px}
.nav-login-hint strong{font-size:14px}
.nav-login-hint small{font-size:12px;color:var(--muted)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:none;cursor:pointer;border-radius:var(--radius-sm);
  font-size:14px;font-weight:600;
  height:42px;padding:0 20px;
  transition:opacity .2s,transform .2s,background .2s,box-shadow .2s;
}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn-block{width:100%}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-strong);transform:translateY(-1px);box-shadow:0 8px 18px rgba(58,123,213,.18)}
.btn-primary:active{transform:translateY(1px)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#E55B2F;transform:translateY(-1px);box-shadow:0 8px 18px rgba(255,106,61,.18)}
.btn-ghost{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.7);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.2);border-color:#fff}
.btn-outline{background:#fff;border:1px solid var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary-weak)}
.btn-sm{height:32px;padding:0 10px;font-size:13px}
.nav-foot{
  margin-top:auto;padding:12px 6px 2px;
  font-size:12px;color:var(--muted);
  border-top:1px solid var(--line);
  line-height:1.7;
}
.nav-mobile-login{display:none;margin-top:12px}
.menu-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}

/* —— 内容布局 —— */
.content-frame{margin-left:var(--side-width);min-height:100vh}
.page-main{max-width:1240px;margin:0 auto;padding:40px clamp(28px,4vw,48px) 24px;min-width:0}

.panel{
  background:var(--card);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  padding:28px;
}

/* —— 分类首屏 hero —— */
.cat-hero{
  position:relative;
  border-radius:24px;
  margin-bottom:44px;
  overflow:hidden;
  background:#12233B url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  min-height:360px;
  box-shadow:var(--shadow);
  display:flex;
  align-items:center;
}
.cat-hero::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(13,27,45,.92) 10%,rgba(13,27,45,.66) 58%,rgba(13,27,45,.26) 100%);
}
.cat-hero__inner{
  position:relative;z-index:2;
  max-width:720px;
  padding:64px 48px;
  color:#fff;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;
  border:1px solid rgba(255,255,255,.42);
  background:rgba(255,255,255,.12);
  border-radius:999px;
  font-size:13px;
  letter-spacing:.5px;
  margin-bottom:18px;
}
.live-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px rgba(255,106,61,.25)}
.cat-hero h1{
  font-size:42px;
  line-height:1.2;
  font-weight:700;
  letter-spacing:.5px;
}
.cat-hero__lead{
  margin-top:16px;
  font-size:16px;
  color:rgba(255,255,255,.92);
  max-width:590px;
}
.hero-actions{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap}
.down-hint{
  position:absolute;right:40px;bottom:22px;z-index:3;
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.82);
}
.down-hint svg{animation:downMove 1.8s infinite}
@keyframes downMove{0%,100%{transform:translateY(0)}50%{transform:translateY(6px)}}

/* —— 栏目简介 / account intro —— */
.intro-row{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:24px;
  margin-bottom:56px;
}
.section-kicker{display:block;font-size:13px;font-weight:600;color:var(--primary);margin-bottom:6px;letter-spacing:1px}
.panel h2{font-size:26px;line-height:1.4;font-weight:700;margin-bottom:14px;color:#1E2C3E}
.panel h3{font-size:20px;line-height:1.4;font-weight:600;margin-bottom:8px;color:#1E2C3E}
.intro-copy p,.panel p,.faq-answer p,.entry-text p{margin-bottom:12px;font-size:15px;color:#3A4754}
.check-list{margin-top:12px;display:flex;flex-direction:column;gap:12px}
.check-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px}
.ico{width:20px;height:20px;flex:0 0 20px}
.check-list li .ico{color:var(--success)}
.login-ready{padding:28px;display:flex;flex-direction:column;justify-content:center}
.login-ready .btn{margin-top:14px}
.login-score{
  display:inline-flex;align-items:baseline;gap:6px;
  font-weight:700;color:var(--primary);font-size:28px;
}

/* —— 流程步骤 —— */
.flow-section{margin-bottom:56px}
.panel-flow{
  background:var(--card);
  border-radius:var(--radius-lg);
  padding:34px;
  box-shadow:var(--shadow);
}
.section-head{margin-bottom:22px}
.section-head h2{font-size:26px;font-weight:700;line-height:1.35;color:#1E2C3E}
.section-head p{color:var(--muted);font-size:14px;margin-top:6px}
.step-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:10px}
.step-item{
  position:relative;
  background:#F8FAFD;
  border:1px solid #EAF0F7;
  border-radius:var(--radius-md);
  padding:22px 18px 20px;
  transition:box-shadow .2s,transform .2s;
}
.step-item:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-hover);
  background:#fff;
  border-color:#DCE8F7;
}
.step-num{
  display:grid;place-items:center;
  width:34px;height:34px;
  border-radius:10px;
  background:var(--primary-weak);
  color:var(--primary);
  font-weight:700;
  margin-bottom:14px;
}
.step-item h3{font-size:16px;margin-bottom:8px;color:#1E2C3E}
.step-item p{font-size:13.5px;color:var(--muted);margin:0}
.flow-note{
  margin-top:16px;
  padding:12px 16px;
  background:var(--bg-light);
  border-left:3px solid var(--primary);
  border-radius:0 8px 8px 0;
  font-size:13px;
  color:var(--muted);
}

/* —— 设备与状态 —— */
.device-wrap{
  display:grid;
  grid-template-columns:minmax(0,6fr) minmax(0,6fr);
  gap:24px;
  margin-bottom:56px;
  align-items:stretch;
}
.media-card{
  position:relative;
  min-height:320px;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.media-card img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover}
.media-card::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(to top,rgba(7,19,34,.58),rgba(7,19,34,0) 50%);
}
.media-flag{
  position:absolute;
  left:16px;
  bottom:16px;
  z-index:2;
  color:#fff;
  font-weight:600;
  font-size:18px;
  text-shadow:0 1px 8px rgba(0,0,0,.3);
}
.status-panel{
  background:var(--card);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  padding:30px;
}
.status-panel h2{font-size:24px;font-weight:700;color:#1E2C3E;margin-bottom:8px}
.status-list{display:flex;flex-direction:column;gap:10px;margin-top:18px}
.status-tag{
  display:flex;align-items:center;gap:10px;
  padding:12px 14px;
  background:#F8FAFD;
  border-radius:12px;
}
.pill{
  flex:0 0 72px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;
  padding:4px 10px;
  border-radius:999px;
  text-align:center;
  letter-spacing:.4px;
  line-height:1.4;
}
.pill-soon{background:#FFF0E8;color:var(--accent)}
.pill-live{background:#E2F4EB;color:var(--success)}
.pill-replay{background:var(--primary-weak);color:var(--primary)}
.pill-account{background:#EEF1F6;color:#4A5C6A}
.pill-check{background:#E9F6EF;color:var(--success)}
.status-tag p{font-size:14px;color:var(--muted);margin:0}
.account-state-line{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:18px;
  padding-top:16px;
  border-top:1px dashed var(--line);
}
.account-state-line span{font-size:13px;color:var(--muted)}

/* —— 入口卡片 —— */
.entry-section{margin-bottom:56px}
.entry-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.entry-card{
  display:flex;
  align-items:flex-start;
  gap:16px;
  background:#fff;
  border-radius:var(--radius-lg);
  padding:22px 22px 20px;
  box-shadow:var(--shadow);
  transition:transform .22s,box-shadow .22s,border-color .22s;
  border:1px solid transparent;
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--primary-weak)}
.entry-card-big{
  grid-column:1 / 3;
  background:#fff;
}
.entry-ico{
  width:44px;height:44px;
  flex:0 0 44px;
  border-radius:13px;
  background:var(--primary-weak);
  color:var(--primary);
  display:grid;place-items:center;
}
.entry-card-big .entry-ico{background:var(--accent);color:#fff}
.entry-title{font-size:17px;font-weight:600;margin-bottom:4px;color:#1E2C3E;line-height:1.45}
.entry-text p{font-size:14px;color:var(--muted);margin-bottom:8px}
.entry-more{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);
  font-weight:600;
  font-size:13.5px;
}
.entry-more svg{transition:transform .2s}
.entry-card:hover .entry-more svg{transform:translateX(4px)}

/* —— FAQ —— */
.faq-section{
  max-width:880px;
  margin:0 auto 56px;
}
.faq-card{
  background:var(--card);
  border-radius:var(--radius-lg);
  padding:36px;
  box-shadow:var(--shadow);
}
.faq-card h2{font-size:26px;font-weight:700;color:#1E2C3E;margin-bottom:24px}
.faq-item{border-bottom:1px solid #E8EDF4}
.faq-item:last-child{border-bottom:0}
.faq-q{
  list-style:none;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  padding:19px 4px;
  cursor:pointer;
  font-weight:600;
  color:#243544;
  font-size:16px;
  transition:color .2s;
}
.faq-q::-webkit-details-marker{display:none}
.faq-q:hover{color:var(--primary)}
.faq-q .mark{
  width:30px;height:30px;
  display:grid;place-items:center;
  border-radius:50%;
  background:var(--bg-light);
  color:var(--primary);
  font-size:20px;
  font-weight:300;
  transition:transform .2s,background .2s,color .2s;
  flex:0 0 30px;
}
details[open] .faq-q .mark{
  background:var(--primary);
  color:#fff;
  transform:rotate(45deg);
}
.faq-answer{padding:0 38px 22px 4px;margin-top:-6px}
.faq-answer p{font-size:14.5px;color:var(--muted);margin:0 0 8px}

/* —— 底部 CTA —— */
.cta-strip{
  border-radius:var(--radius-lg);
  background:#12283f url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  position:relative;
  padding:48px 52px;
  margin-bottom:48px;
  overflow:hidden;
}
.cta-strip::before{content:"";position:absolute;inset:0;background:rgba(18,36,56,.82)}
.cta-inner{position:relative;z-index:1;max-width:720px;color:#fff}
.cta-inner h2{font-size:28px;line-height:1.35;font-weight:700;margin-bottom:10px}
.cta-inner p{color:rgba(255,255,255,.9);font-size:15px;margin-bottom:20px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* —— footer（保持首页结构一致）—— */
.footer-card{
  background:#fff;
  border-top:1px solid var(--line);
  padding:40px clamp(28px,4vw,48px) 26px;
}
.footer-top{
  max-width:1240px;
  margin:0 auto;
  display:flex;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
  padding-bottom:26px;
  border-bottom:1px solid var(--line);
}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:#1D2B3B}
.footer-brand .brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  background:var(--primary-weak);
  color:var(--primary);
  border-radius:10px;
}
.footer-quote{
  flex:1;
  max-width:360px;
  color:var(--muted);
  font-size:13px;
  line-height:1.8;
}
.footer-links{display:flex;gap:22px;flex-wrap:wrap;align-items:flex-start;padding-top:6px}
.footer-links a{font-size:14px;color:var(--body);font-weight:500;transition:color .2s}
.footer-links a:hover{color:var(--primary)}
.footer-bottom{
  max-width:1240px;
  margin:20px auto 0;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  color:var(--muted);
  font-size:12.5px;
}
.legal{max-width:600px;line-height:1.7}

/* —— 响应式 —— */
@media(max-width:1199px){
  .step-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .intro-row,.device-wrap{grid-template-columns:1fr 1fr}
}
@media(max-width:1023px){
  .side-nav{
    position:sticky;
    width:100%;
    height:auto;
    top:0;
    left:0;
    right:0;
    flex-direction:row;
    align-items:center;
    padding:10px 18px;
    border-right:0;
    border-bottom:1px solid var(--line);
    gap:20px;
  }
  .brand-block{border-bottom:0;padding:0;margin:0}
  .brand-icon{width:38px;height:38px;flex-basis:38px}
  .menu-toggle{display:block;margin-left:auto;color:var(--body);width:42px;height:42px;border-radius:10px}
  .menu-toggle span{display:block;width:22px;height:2px;background:currentColor;margin:6px auto;border-radius:2px;transition:.25s}
  .main-nav{
    display:none;
    position:absolute;
    top:calc(100% + 6px);
    left:12px;right:12px;
    background:#fff;
    box-shadow:0 20px 36px rgba(14,32,60,.14);
    border-radius:18px;
    border:1px solid var(--line);
    padding:12px;
    z-index:90;
  }
  .main-nav.open{display:flex;animation:menuIn .2s ease}
  @keyframes menuIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
  .nav-account,.nav-foot{display:none}
  .nav-mobile-login{display:block}
  .content-frame{margin-left:0}
  .footer-top{flex-direction:column;align-items:flex-start}
}
@media(max-width:900px){
  .intro-row,.device-wrap{grid-template-columns:minmax(0,1fr)}
  .cat-hero__inner{padding:48px 28px}
  .cat-hero h1{font-size:34px}
}
@media(max-width:767px){
  .page-main{padding:22px 16px 8px}
  .panel,.panel-flow,.status-panel,.faq-card{padding:20px 18px}
  .cat-hero{border-radius:18px;min-height:330px}
  .cat-hero__inner{padding:40px 24px}
  .cat-hero h1{font-size:30px}
  .hero-actions .btn{flex:1 1 auto}
  .step-list{grid-template-columns:minmax(0,1fr)}
  .entry-grid{grid-template-columns:minmax(0,1fr)}
  .entry-card-big{grid-column:auto}
  .cta-strip{padding:38px 24px;border-radius:18px}
  .cta-inner h2{font-size:23px}
  .faq-answer{padding-right:8px}
  .footer-card{padding:28px 18px 20px}
  .footer-links{gap:14px}
  .footer-bottom{flex-direction:column}
}
@media(max-width:480px){
  .brand-name{font-size:16px}
  .brand-tag{display:none}
  .cat-hero__lead{font-size:14.5px}
  .btn{height:44px;min-width:44px}
  .cot-down-hint{display:none}
  .entry-card{flex-direction:column}
  .faq-q{align-items:flex-start}
}

/* roulang page: category2 */
:root{
  --blue:#3A7BD5;
  --blue-deep:#2D5FA8;
  --blue-soft:#EAF1FA;
  --accent:#FF6A3D;
  --bg:#F3F6FB;
  --bg-white:#FFFFFF;
  --bg-muted:#FAFCFE;
  --border:#E3EBF3;
  --wall:#EAEFF6;
  --text:#2B3A4A;
  --muted:#6B7A8A;
  --safe:#2EB872;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 1px 2px rgba(14,32,60,.04),0 8px 24px rgba(14,32,60,.08);
  --shadow-hover:0 2px 4px rgba(14,32,60,.06),0 14px 30px rgba(14,32,60,.12);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,
*::before,
*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);font-size:16px;line-height:1.75;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button,input{font-family:inherit;font-size:inherit}
input::placeholder{color:#9AA7B4;font-style:normal}
.container{max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px}
.page-section{padding:64px 0}
.skip-to-content{position:absolute;left:-9999px;top:0;background:var(--blue);color:#fff;padding:10px 16px;border-radius:8px;z-index:200}
.skip-to-content:focus{left:16px;top:16px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:10px 22px;border-radius:10px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .16s ease,box-shadow .16s ease,background-color .16s ease;white-space:nowrap;line-height:1.2}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 6px 16px rgba(58,123,213,.22)}
.btn-primary:hover{background:#4D8AE0;transform:translateY(-1px);box-shadow:0 10px 20px rgba(58,123,213,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(58,123,213,.2)}
.btn-primary:focus-visible{outline:2px solid var(--blue);outline-offset:3px}
.btn-ghost{background:#fff;border-color:#C7D8EA;color:var(--blue-deep)}
.btn-ghost:hover{background:var(--blue-soft);border-color:#a9bfdc}
.btn-ghost:active{transform:translateY(0)}
.btn-ghost:focus-visible{outline:2px solid #7AA9D8;outline-offset:3px}

/* App shell */
.site-shell{min-height:100vh}
.left-rail{position:fixed;top:0;left:0;bottom:0;width:252px;background:#fff;display:flex;flex-direction:column;padding:22px 12px 16px;border-right:1px solid rgba(227,235,243,.6);z-index:120}
.brand-link{display:flex;align-items:center;gap:10px;padding:4px 12px 18px;border-bottom:1px solid #EDF2F8;margin-bottom:16px}
.brand-mark{flex:0 0 auto;width:34px;height:34px;border-radius:10px;background:linear-gradient(150deg,#5E9BE0,#3A7BD5);display:inline-flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:13px;letter-spacing:.02em;box-shadow:0 6px 14px rgba(58,123,213,.22)}
.brand-name,.brand-text{font-weight:700;font-size:17px;line-height:1.25;letter-spacing:.02em}
.rail-logo .brand-text{display:block;white-space:nowrap}
.main-nav{display:flex;flex-direction:column;gap:4px}
.nav-item{display:flex;align-items:center;gap:10px;padding:11px 14px;border-radius:10px;color:#4B5A68;font-size:15px;font-weight:500;line-height:1.4;transition:background-color .15s,color .15s}
.nav-item i{width:18px;text-align:center;font-style:normal;color:#A8B7C7;font-size:14px}
.nav-item i::before{content:"›";font-weight:900}
.nav-item:hover{background:#F2F6FC;color:var(--blue-deep)}
.nav-item.active{background:var(--blue-soft);color:var(--blue-deep);font-weight:600}
.nav-item.active i{color:var(--blue)}
.rail-footer{margin-top:auto;background:#F6F9FD;border:1px solid #E6EEF6;border-radius:12px;padding:14px 14px 12px}
.rail-footer p{font-size:13px;color:var(--muted);line-height:1.6;margin-bottom:12px}
.rail-login-btn{display:block;width:100%;text-align:center;background:#fff;border:1px solid #C8D9EA;color:var(--blue-deep);font-weight:600;font-size:14px;padding:8px 12px;border-radius:9px;transition:background-color .15s,color .15s}
.rail-login-btn:hover{background:var(--blue-soft);color:var(--blue-deep)}

.main-area{margin-left:252px;min-width:0}
.site-main{background:var(--bg)}
.mobile-bar{display:none;height:58px;padding:0 20px;align-items:center;justify-content:space-between;background:#fff;border-bottom:1px solid #E8EFF6;position:sticky;top:0;z-index:110}
.mobile-bar .brand-slot{display:flex;align-items:center;gap:10px;font-weight:700}
.mobile-bar .brand-mark{width:30px;height:30px;border-radius:8px;font-size:12px}
.menu-toggle{width:42px;height:42px;border-radius:10px;border:1px solid #DCE6F0;background:#fff;color:var(--blue-deep);font-size:20px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.mobile-panel{display:none;background:#fff;padding:14px 18px 20px;border-bottom:1px solid #E6EDF5}
.mobile-panel .main-nav{border-top:1px solid #EDF2F7;padding-top:10px}
.mobile-panel.nav-open{display:block}

/* Hero */
.cate-hero{position:relative;padding:90px 0 78px;overflow:hidden;background:linear-gradient(108deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.9) 40%,rgba(232,241,250,.48) 100%),url(/assets/images/backpic/back-2.png) center/cover no-repeat}
.cate-hero-inner{max-width:1260px;margin:0 auto;padding:0 40px;display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:44px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid #DDE9F5;border-radius:20px;padding:6px 14px;font-size:13px;font-weight:600;color:var(--blue-deep);box-shadow:0 2px 10px rgba(58,123,213,.06)}
.eyebrow .pulse-dot{width:8px;height:8px;border-radius:50%;background:var(--safe)}
.hero-title{font-size:38px;font-weight:700;line-height:1.28;margin:18px 0 16px;letter-spacing:-.01em;color:#1F2E3F}
.hero-title span{color:var(--blue)}
.hero-copy{font-size:16px;color:#425467;max-width:600px;margin-bottom:24px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px}
.hero-line{font-size:14px;color:var(--muted);display:flex;align-items:center;gap:8px}
.hero-line .sep{width:4px;height:4px;background:#CBd6E3;border-radius:50%}

.hero-mini-card{background:rgba(255,255,255,.94);border:1px solid #E6EEF7;border-radius:18px;box-shadow:var(--shadow);padding:22px}
.hero-mini-card h3{font-size:16px;font-weight:700;margin-bottom:4px}
.hero-mini-card .sub{font-size:13px;color:var(--muted);margin-bottom:18px}
.mini-list{list-style:none}
.mini-list li{position:relative;padding:0 0 12px 26px;font-size:14px;line-height:1.7;color:#3C4C5C;border-bottom:1px dashed #E3ECF5}
.mini-list li:last-child{border-bottom:0;padding-bottom:0}
.mini-list li::before{content:"✓";position:absolute;left:2px;top:1px;width:18px;height:18px;border-radius:6px;background:var(--blue-soft);color:var(--blue-deep);font-size:11px;font-weight:800;display:inline-flex;align-items:center;justify-content:center}

/* Section titles */
.section-head{max-width:680px;margin-bottom:34px}
.kicker{display:inline-block;font-size:13px;font-weight:700;color:var(--blue);letter-spacing:.08em;margin-bottom:10px}
.section-head h2{font-size:27px;font-weight:700;line-height:1.3;color:#223244}
.section-head p{font-size:15px;color:var(--muted);line-height:1.75;margin-top:10px}

/* Welcome-board */
.walkthrough{background:#fff}
.check-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.check-card{background:var(--bg-muted);border:1px solid #E8EFF6;border-radius:var(--radius);padding:22px 20px;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease}
.check-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);background:#fff}
.check-num{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:10px;background:linear-gradient(135deg,#fff,#EDF4FC);border:1px solid #C9DCEE;color:var(--blue-deep);font-size:14px;font-weight:800;margin-bottom:14px}
.check-card h3{font-size:17px;margin-bottom:8px;line-height:1.45}
.check-card p{font-size:14px;color:var(--muted);line-height:1.7}

/* Status explain */
.status-section{background:var(--bg-muted);position:relative}
.status-split{display:grid;grid-template-columns:minmax(380px,.92fr) minmax(0,1.08fr);gap:44px;align-items:center}
.status-visual{position:relative;border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}
.status-visual img{width:100%;height:300px;object-fit:cover}
.status-stamp{position:absolute;left:18px;bottom:16px;background:rgba(255,255,255,.95);backdrop-filter:blur(4px);border-radius:12px;padding:10px 14px;display:flex;align-items:center;gap:10px;box-shadow:0 6px 16px rgba(14,32,60,.12)}
.live-dot{width:9px;height:9px;border-radius:50%;background:var(--accent)}
.status-stamp span{font-size:13px;font-weight:700;color:#2A3949}
.status-copy h2{font-size:27px;line-height:1.35;margin-bottom:12px}
.status-copy > p{color:var(--muted);margin-bottom:18px}
.status-list{list-style:none;display:grid;gap:8px;margin-top:20px}
.status-list li{display:flex;gap:12px;align-items:center;background:#fff;border:1px solid #E7EEF6;padding:12px 14px;border-radius:11px;font-size:14px;line-height:1.7}
.status-list .mark{flex:none;width:28px;height:28px;border-radius:8px;background:var(--blue-soft);color:var(--blue-deep);font-size:14px;font-weight:800;display:inline-flex;align-items:center;justify-content:center}
.status-list .live-mark{background:#FFF0EA;color:var(--accent)}
.status-list .play-mark{background:#E5F6ED;color:var(--safe)}

/* Steps */
.flow-section{background:#fff}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.flow-card{position:relative;background:var(--bg-muted);border-radius:var(--radius);border:1px solid #ECF1F7;padding:26px 20px 22px;transition:box-shadow .18s,transform .18s}
.flow-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.flow-card::before{counter-increment:step;content:"0" counter(step);display:block;font-size:14px;font-weight:800;letter-spacing:.06em;color:var(--blue);margin-bottom:12px}
.flow-card h3{font-size:16px;margin-bottom:8px;line-height:1.5}
.flow-card p{font-size:14px;color:var(--muted);line-height:1.75}
.flow-arrow{display:none}

/* Cases */
.cases-section{background:#fff}
.case-wrap{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.case-item{display:flex;gap:16px;align-items:flex-start;background:var(--bg-muted);border:1px solid #EAF0F7;border-radius:12px;padding:18px 18px}
.case-icon{flex:0 0 42px;height:42px;border-radius:12px;background:#fff;border:1px solid #D9E6F4;color:var(--blue-deep);display:flex;align-items:center;justify-content:center;font-weight:800;font-style:normal;font-size:16px}
.case-item h3{font-size:16px;margin-bottom:6px}
.case-item p{font-size:14px;color:var(--muted);line-height:1.72}
.case-item.on{background:#fff}
.case-item.on .case-icon{background:var(--blue-soft);border-color:transparent}

/* Guide CTA */
.guide-cta{background:var(--blue-soft)}
.guide-cta-card{background:#fff;border:1px solid #E1EAF4;border-radius:18px;max-width:1000px;margin:0 auto;padding:40px 48px;display:flex;align-items:center;justify-content:space-between;gap:28px;box-shadow:var(--shadow)}
.guide-cta-card h2{font-size:22px;line-height:1.45;margin-bottom:8px}
.guide-cta-card p{color:var(--muted);font-size:15px}
.guide-cta-card .btn{flex:none}

/* FAQ */
.faq-section{background:var(--bg)}
.faq-inner{max-width:820px;margin:0 auto}
.faq-title{text-align:center;font-size:28px;font-weight:700;margin-bottom:10px}
.faq-sub{text-align:center;color:var(--muted);margin-bottom:34px}
.qa-item{border-bottom:1px solid #DDE7F1}
details.qa-item{list-style:none}
details.qa-item::marker,details.qa-item summary::-webkit-details-marker{display:none;content:""}
summary{cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 2px;font-weight:600;font-size:16px;color:#27384A;list-style:none}
summary::-webkit-details-marker{display:none}
summary .plus{flex:0 0 auto;position:relative;width:22px;height:22px;border-radius:50%;background:#fff;border:1px solid #C9D9E8;color:var(--blue-deep);font-weight:700;text-align:center;line-height:20px;font-size:18px}
details[open] summary .plus{transform:rotate(45deg);background:var(--blue);color:#fff;border-color:var(--blue)}
.qa-answer{padding:0 40px 22px 2px;color:#526274;font-size:15px;line-height:1.85}

/* Bottom back to home */
.home-link-card{background:#fff;border-top:1px solid #ECF1F7;padding:40px 0}
.home-back-wrapper{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}
.text-link{font-weight:600;color:var(--blue-deep);display:inline-flex;align-items:center;gap:6px}
.text-link::before{content:"←";font-size:16px}

/* Footer */
.footer-area{background:#fff;border-top:1px solid #E3EBF3}
.footer-card{max-width:1280px;margin:0 auto;padding:48px 40px 26px}
.footer-top{display:grid;grid-template-columns:minmax(280px,1fr) minmax(0,1fr);gap:32px;align-items:start}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .brand-mark{margin-right:0}
.footer-quote{font-size:14px;color:var(--muted);margin-top:16px;max-width:420px;line-height:1.8}
.footer-links{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:6px 22px}
.footer-links a{color:#3E4F61;font-size:15px;font-weight:500;transition:color .15s}
.footer-links a:hover{color:var(--blue)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;padding-top:20px;margin-top:34px;border-top:1px solid #EDF2F7;color:#8090A0;font-size:13px}
.footer-bottom .legal{max-width:640px}
.footer-bottom i{font-style:normal}

/* Responsive */
@media (max-width:1180px){
  .check-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .cate-hero-inner{grid-template-columns:minmax(0,1fr) 310px}
  .footer-top{grid-template-columns:1fr}
  .footer-links{justify-content:flex-start}
}
@media (max-width:1023px){
  .left-rail{display:none}
  .main-area{margin-left:0}
  .mobile-bar{display:flex}
  .mobile-panel{position:sticky;top:58px;z-index:100}
  .mobile-panel .nav-item{padding:13px 14px;border-radius:10px;background:transparent}
  .mobile-panel .nav-item.active{background:var(--blue-soft)}
  .cate-hero{padding:58px 0 46px}
  .cate-hero-inner{grid-template-columns:1fr;padding:0 24px}
  .hero-mini-card{max-width:520px}
  .status-split{grid-template-columns:1fr}
  .case-wrap{grid-template-columns:1fr}
  .guide-cta-card{flex-direction:column;text-align:center;padding:32px 28px}
  .footer-card{padding:40px 24px 24px}
}
@media (max-width:767px){
  .page-section{padding:48px 0}
  .section-head h2{font-size:23px}
  .cate-hero{padding-top:44px}
  .hero-title{font-size:29px}
  .hero-copy{font-size:15px}
  .hero-actions .btn{width:100%}
  .check-grid{grid-template-columns:1fr;gap:12px}
  .flow-grid{grid-template-columns:1fr;gap:12px}
  .status-visual img{height:200px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .guide-cta-card{padding:26px 18px}
  .footer-links{flex-direction:column;gap:10px}
  .qa-answer{padding-right:0}
}

/* roulang page: category3 */
:root {
  --color-primary: #3A7BD5;
  --color-primary-deep: #2F63B0;
  --color-primary-soft: #EAF1FA;
  --color-accent: #FF6A3D;
  --color-success: #2EB872;
  --color-bg: #F3F6FB;
  --color-surface: #FFFFFF;
  --color-surface-alt: #FAFCFE;
  --color-text: #2B3A4A;
  --color-muted: #6C7A89;
  --color-line: #E4EAF2;
  --color-nav-active-text: #2F63B0;
  --color-dark: #24394E;
  --color-dark-overlay: rgba(18, 32, 45, 0.72);
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-card: 0 1px 2px rgba(14, 32, 60, 0.04), 0 8px 24px rgba(14, 32, 60, 0.08);
  --shadow-hover: 0 2px 4px rgba(14, 32, 60, 0.06), 0 14px 30px rgba(14, 32, 60, 0.12);
  --content-side: 40px;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "system-ui", sans-serif;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-main);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
body.nav-lock {
  overflow: hidden;
}
ul,
ol,
li {
  list-style: none;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  display: block;
  border: 0;
}
button,
input {
  font-family: inherit;
  border: none;
  background: none;
}
input:focus-visible,
button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
.container-inner {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--content-side);
  padding-right: var(--content-side);
}
.app-shell {
  display: flex;
  min-height: 100vh;
  width: 100%;
}
.site-aside {
  width: 248px;
  flex: 0 0 248px;
  background: var(--color-surface);
  border-right: 1px solid var(--color-line);
  padding: 26px 18px 22px;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 80;
  overflow-y: auto;
}
.aside-brand {
  padding: 0 10px 24px;
}
.brand-main {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 19px;
  letter-spacing: 0.2px;
  color: var(--color-text);
  line-height: 1.3;
  white-space: nowrap;
}
.brand-mark {
  flex: 0 0 34px;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--color-primary);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 17px;
  box-shadow: 0 6px 14px rgba(58, 123, 213, 0.28);
}
.main-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 8px 0 18px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px 14px;
  border-radius: 10px;
  color: #415468;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.4;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
  position: relative;
}
.nav-item i {
  width: 18px;
  text-align: center;
  font-size: 17px;
  color: #7890A8;
  transition: color 0.2s ease;
}
.nav-item:hover {
  background: #F4F7FC;
  color: var(--color-primary-deep);
  transform: translateX(3px);
}
.nav-item:hover i {
  color: var(--color-primary);
}
.nav-item.active {
  background: var(--color-primary-soft);
  color: var(--color-nav-active-text);
  font-weight: 700;
}
.nav-item.active i {
  color: var(--color-primary);
}
.aside-account {
  background: #F7F9FD;
  border: 1px solid #EAF0F7;
  border-radius: var(--radius-md);
  padding: 14px;
  margin: 6px 0 12px;
}
.account-note {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 10px;
}
.account-note .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 0 3px rgba(46, 184, 114, 0.14);
}
.account-note .status-dot.live {
  background: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(255, 106, 61, 0.16);
}
.account-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  width: 100%;
  height: 40px;
  border-radius: 9px;
  background: var(--color-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.account-btn:hover {
  background: var(--color-primary-deep);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(47, 99, 176, 0.2);
}
.account-btn:active {
  transform: translateY(0);
}
.aside-version {
  font-size: 12px;
  line-height: 1.7;
  color: #8496A8;
  padding: 0 8px;
}
.aside-version strong {
  color: #5A7085;
  font-weight: 600;
}
.topbar {
  display: none;
  height: 64px;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-line);
  position: sticky;
  top: 0;
  z-index: 90;
}
.topbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 17px;
  color: var(--color-text);
}
.topbar-brand .brand-mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  font-size: 14px;
}
.menu-btn {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  color: var(--color-text);
  font-size: 18px;
  background: #F4F7FC;
  cursor: pointer;
}
.menu-btn:hover {
  background: var(--color-primary-soft);
}
.menu-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(18, 32, 45, 0.42);
  z-index: 70;
  opacity: 0;
  transition: opacity 0.25s ease;
}
.menu-backdrop.show {
  display: block;
  opacity: 1;
}
.site-main {
  flex: 1;
  min-width: 0;
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
}
.page-main {
  flex: 1;
  width: 100%;
}
.hero-push {
  padding-top: 28px;
}
.category-hero {
  margin: 28px auto 0;
  min-height: 420px;
  border-radius: 18px;
  position: relative;
  overflow: hidden;
  background-color: #22384D;
  background-image: url('/assets/images/backpic/back-2.png');
  background-position: center 42%;
  background-size: cover;
  display: flex;
  align-items: flex-end;
}
.category-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-color: rgba(13, 26, 39, 0.68);
}
.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 46px var(--content-side) 44px;
}
.crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 13px;
  margin-bottom: 14px;
}
.crumb a {
  transition: color 0.2s ease;
}
.crumb a:hover {
  color: #fff;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.4px;
  color: #FFD6C8;
  background: rgba(255, 106, 61, 0.18);
  border: 1px solid rgba(255, 106, 61, 0.28);
  border-radius: 999px;
  padding: 5px 13px 5px 10px;
  margin-bottom: 18px;
}
.hero-kicker i {
  color: var(--color-accent);
}
.category-hero h1 {
  font-size: clamp(36px, 5vw, 48px);
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.18;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}
.hero-lead {
  max-width: 720px;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 28px;
}
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-width: 44px;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 8px 18px rgba(58, 123, 213, 0.24);
}
.btn-primary:hover {
  background: var(--color-primary-deep);
  transform: translateY(-2px);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-light {
  background: #fff;
  color: #20354A;
  border: 1px solid rgba(255, 255, 255, 0.62);
}
.btn-light:hover {
  background: #F1F5FB;
  transform: translateY(-2px);
}
.btn-outline-light {
  background: rgba(255, 255, 255, 0.06);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.55);
}
.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: #FFFFFF;
  transform: translateY(-2px);
}
.section-pad {
  padding-top: 64px;
}
.section-pad-2 {
  padding: 72px 0 0;
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.eyebrow::before {
  content: '';
  width: 22px;
  height: 3px;
  border-radius: 99px;
  background: var(--color-primary);
}
.eyebrow.orange {
  color: var(--color-accent);
}
.eyebrow.orange::before {
  background: var(--color-accent);
}
.section-title {
  font-size: clamp(23px, 2.6vw, 28px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-text);
}
.section-desc {
  max-width: 440px;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.8;
}
.more-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--color-muted);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s ease, gap 0.2s ease;
}
.more-link:hover {
  color: var(--color-primary);
  gap: 10px;
}
.spotlight-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: 22px;
  align-items: stretch;
}
.media-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(226, 233, 241, 0.72);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}
.media-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.cover-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #D6DFE8;
}
.cover-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.media-card:hover .cover-frame img {
  transform: scale(1.03);
}
.frame-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 8px;
  background: var(--color-accent);
  color: #fff;
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 6px 14px rgba(255, 106, 61, 0.3);
}
.frame-badge i {
  width: auto;
  font-size: 11px;
}
.frame-tag {
  position: absolute;
  left: 14px;
  bottom: 14px;
  z-index: 3;
  background: rgba(18, 32, 45, 0.64);
  backdrop-filter: blur(4px);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  border-radius: 7px;
  padding: 5px 10px;
}
.media-body {
  padding: 22px;
}
.media-body .tag-row {
  margin-bottom: 10px;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary-deep);
  background: var(--color-primary-soft);
  border-radius: 7px;
}
.tag.orange {
  color: #C44F28;
  background: rgba(255, 106, 61, 0.13);
}
.tag.green {
  color: #21845B;
  background: rgba(46, 184, 114, 0.14);
}
.media-body h3 {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.55;
  margin-bottom: 10px;
  color: var(--color-text);
}
.media-body p {
  font-size: 14px;
  line-height: 1.85;
  color: var(--color-muted);
}
.inline-link {
  display: inline-flex;
  align-items: center;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  gap: 6px;
  transition: color .2s ease, gap .2s ease;
}
.inline-link:hover {
  color: var(--color-primary-deep);
  gap: 9px;
}
.spot-stack {
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.spot-card {
  flex: 1;
}
.spot-card .spot-inner {
  display: grid;
  grid-template-columns: 120px 1fr;
  min-height: 0;
  background: var(--color-surface);
  border: 1px solid rgba(226, 233, 241, 0.72);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: box-shadow .3s ease, transform .3s ease;
}
.spot-card .spot-inner:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.thumb-box {
  position: relative;
  width: 120px;
  min-height: 100%;
  overflow: hidden;
  background: #DDE5ED;
}
.thumb-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}
.spot-meta {
  padding: 17px 18px 15px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.spot-meta .tag {
  margin-bottom: 7px;
  width: max-content;
}
.spot-meta h4 {
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--color-text);
  margin-bottom: 5px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.spot-meta p {
  font-size: 12.5px;
  color: var(--color-muted);
  line-height: 1.6;
}
.spot-time {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  color: #9A6B2D;
  font-size: 12px;
  font-weight: 600;
}
.interpret-wrap {
  background: var(--color-surface);
  border-radius: 20px;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(226, 233, 241, 0.78);
  overflow: hidden;
}
.interpret-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
}
.interpret-visual {
  position: relative;
  aspect-ratio: 1.35 / 1;
  min-height: 380px;
  background: #E1E8F0;
}
.interpret-visual img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.visual-note {
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 22px;
  background: rgba(16, 29, 41, 0.72);
  color: #fff;
  border-radius: 13px;
  padding: 15px 17px;
  font-size: 13px;
  display: flex;
  gap: 10px;
  align-items: center;
}
.visual-note i {
  color: var(--color-accent);
  font-size: 20px;
}
.interpret-content {
  padding: 38px 40px 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.interpret-content .eyebrow {
  margin-bottom: 10px;
}
.interpret-content h2 {
  font-size: 25px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 18px;
}
.interpret-content > p {
  color: var(--color-muted);
  font-size: 14.5px;
  line-height: 1.9;
  margin-bottom: 24px;
}
.read-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.read-item {
  display: flex;
  gap: 13px;
  padding: 14px 15px;
  border: 1px solid var(--color-line);
  border-radius: 12px;
  background: var(--color-surface-alt);
  transition: border-color .2s ease, background .2s ease;
}
.read-item:hover {
  border-color: #C9DCF5;
  background: #F2F7FE;
}
.read-index {
  font-size: 13px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.8;
  font-variant-numeric: tabular-nums;
}
.read-item p {
  font-size: 14px;
  line-height: 1.7;
  color: #556676;
}
.read-item p strong {
  color: var(--color-text);
  font-weight: 700;
}
.timeline-section {
  background: var(--color-surface);
}
.timeline-inner {
  padding-top: 68px;
  padding-bottom: 72px;
}
.timeline-head {
  text-align: center;
  margin: 0 auto 40px;
  max-width: 640px;
}
.timeline-head .eyebrow {
  justify-content: center;
}
.timeline-head .eyebrow::before {
  content: none;
}
.timeline-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}
.time-node {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-line);
  padding: 22px 18px;
  background: #FBFCFE;
  min-height: 148px;
  transition: box-shadow .25s ease, transform .25s ease;
}
.time-node:hover {
  box-shadow: var(--shadow-card);
  transform: translateY(-3px);
}
.time-node::after {
  content: '';
  position: absolute;
  top: 24px;
  right: -10px;
  width: 18px;
  height: 2px;
  background: #D9E3EF;
}
.time-node:last-child::after {
  display: none;
}
.time-label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-accent);
  font-weight: 800;
  font-size: 12px;
  margin-bottom: 12px;
  letter-spacing: .5px;
}
.time-node h3 {
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.55;
  margin-bottom: 6px;
  color: var(--color-text);
}
.time-node p {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.7;
}
.faq-wrap {
  max-width: 850px;
  margin: 0 auto;
}
.section-title-center {
  text-align: center;
  font-size: clamp(23px, 3vw, 29px);
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 12px;
}
.section-lead-center {
  text-align: center;
  color: var(--color-muted);
  font-size: 14.5px;
  margin-bottom: 36px;
}
.faq-list {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: 18px;
  padding: 8px 24px;
  box-shadow: var(--shadow-card);
}
.faq-item {
  border-bottom: 1px solid #E9EEF5;
}
.faq-item:last-child {
  border-bottom: none;
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 2px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--color-text);
  transition: color .2s ease;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary:hover {
  color: var(--color-primary);
}
.faq-icon {
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--color-primary-soft);
  position: relative;
  display: grid;
  place-items: center;
  transition: background .25s ease, transform .25s ease;
}
.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background: var(--color-primary);
  border-radius: 20px;
  transition: background .2s ease;
}
.faq-icon::before {
  width: 12px;
  height: 2px;
}
.faq-icon::after {
  width: 2px;
  height: 12px;
}
.faq-item[open] .faq-icon {
  transform: rotate(135deg);
  background: rgba(58, 123, 213, 0.16);
}
.faq-answer {
  padding: 0 34px 22px 2px;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.9;
}
.faq-answer strong {
  color: var(--color-text);
  font-weight: 700;
}
.cta-panel {
  margin-top: 64px;
  border-radius: 20px;
  background: #25394B;
  position: relative;
  overflow: hidden;
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: 42px var(--content-side);
}
.cta-copy h2 {
  font-size: clamp(21px, 2.6vw, 27px);
  line-height: 1.4;
  color: #fff;
  font-weight: 800;
  margin-bottom: 10px;
}
.cta-copy p {
  color: rgba(255, 255, 255, 0.76);
  font-size: 14.5px;
  max-width: 640px;
}
.cta-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  white-space: nowrap;
}
.footer-card {
  background: var(--color-surface);
  border-top: 1px solid var(--color-line);
  padding: 28px var(--content-side) 22px;
  margin-top: 72px;
}
.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid #E9EEF5;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 16px;
  font-weight: 800;
  color: var(--color-text);
}
.footer-brand .brand-mark {
  width: 28px;
  height: 28px;
  font-size: 13px;
  border-radius: 8px;
}
.footer-quote {
  flex: 1 1 auto;
  min-width: 260px;
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.8;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.footer-links a {
  font-size: 13px;
  color: #53667A;
  padding: 6px 10px;
  border-radius: 8px;
  transition: background .2s ease, color .2s ease;
}
.footer-links a:hover {
  background: var(--color-primary-soft);
  color: var(--color-primary-deep);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 16px;
  font-size: 12px;
  color: #7C8B9A;
  line-height: 1.8;
}
.footer-bottom .legal {
  max-width: 680px;
  text-align: right;
}
@media (max-width: 1180px) {
  .spot-card .spot-inner {
    grid-template-columns: 100px 1fr;
  }
  .thumb-box {
    width: 100px;
  }
  .spot-meta {
    padding: 15px;
  }
  .interpret-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
  .interpret-content {
    padding: 30px;
  }
}
@media (max-width: 1023px) {
  .site-aside {
    position: fixed;
    left: 0;
    top: 0;
    transform: translateX(-105%);
    transition: transform .28s ease;
    width: 260px;
    z-index: 100;
  }
  .site-aside.open {
    transform: translateX(0);
    box-shadow: 16px 0 40px rgba(14, 32, 60, 0.16);
  }
  .topbar {
    display: flex;
  }
  .container-inner {
    padding-left: 28px;
    padding-right: 28px;
  }
  .hero-content {
    padding: 38px 28px;
  }
  .category-hero {
    margin-left: 16px;
    margin-right: 16px;
  }
  .timeline-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .time-node:nth-child(2)::after {
    display: none;
  }
  .spot-card .spot-inner {
    grid-template-columns: 118px 1fr;
  }
  .thumb-box {
    width: 118px;
  }
  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 36px 32px;
  }
  .footer-card {
    padding-left: 28px;
    padding-right: 28px;
  }
}
@media (max-width: 820px) {
  .spotlight-grid {
    grid-template-columns: 1fr;
  }
  .spot-stack {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
  .spot-card .spot-inner {
    grid-template-columns: 1fr;
  }
  .spot-card .thumb-box {
    width: 100%;
    aspect-ratio: 3 / 1.9;
    min-height: 0;
    background: #E1E7EE;
  }
  .spot-card .thumb-box img {
    position: relative;
    width: 100%;
  }
  .interpret-grid {
    grid-template-columns: 1fr;
  }
  .interpret-visual {
    min-height: 320px;
  }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .section-desc {
    max-width: 100%;
  }
  .section-pad {
    padding-top: 48px;
  }
}
@media (max-width: 767px) {
  .topbar {
    padding: 0 16px;
    height: 60px;
  }
  .container-inner {
    padding-left: 18px;
    padding-right: 18px;
  }
  .hero-push {
    padding-top: 16px;
  }
  .category-hero {
    margin-left: 10px;
    margin-right: 10px;
    min-height: 420px;
    border-radius: 16px;
  }
  .hero-content {
    padding: 34px 22px;
  }
  .category-hero h1 {
    font-size: 30px;
  }
  .spot-stack {
    grid-template-columns: 1fr;
  }
  .interpret-content {
    padding: 24px 20px;
  }
  .interpret-content h2 {
    font-size: 21px;
  }
  .timeline-section {
    border-radius: 0;
  }
  .timeline-inner {
    padding-top: 48px;
    padding-bottom: 48px;
  }
  .timeline-grid {
    grid-template-columns: 1fr;
  }
  .time-node::after {
    display: none;
  }
  .time-node {
    aspect-ratio: auto;
  }
  .section-title {
    font-size: 23px;
  }
  .section-title-center {
    font-size: 24px;
  }
  .cta-panel {
    margin-top: 48px;
    border-radius: 0;
    margin-left: -18px;
    margin-right: -18px;
  }
  .cta-inner {
    padding: 34px 26px;
  }
  .cta-actions .btn {
    width: 100%;
  }
  .btn-row .btn {
    flex: 0 1 auto;
  }
  .faq-list {
    padding: 6px 16px;
    border-radius: 14px;
  }
  .faq-answer {
    padding-right: 8px;
  }
  .footer-card {
    margin-top: 52px;
    padding-left: 18px;
    padding-right: 18px;
  }
  .footer-bottom {
    flex-direction: column;
  }
  .footer-bottom .legal {
    text-align: left;
  }
}
@media (max-width: 1120px) and (min-width: 1024px) {
  .site-aside {
    width: 220px;
    flex-basis: 220px;
  }
}

/* roulang page: category4 */
:root{
            --primary:#3A7BD5;
            --primary-600:#2E6DC4;
            --primary-soft:#EAF1FA;
            --primary-border:#D6E2F0;
            --accent:#FF6A3D;
            --accent-soft:#FFF0EB;
            --success:#2EB872;
            --success-soft:#E6F7EF;
            --ink:#2B3A4A;
            --muted:#6C7A89;
            --paper:#FFFFFF;
            --wash:#F3F6FB;
            --cool:#F7FAFD;
            --border:#E4EBF4;
            --line:#EDF2F8;
            --radius-lg:16px;
            --radius:13px;
            --radius-sm:9px;
            --shadow-sm:0 1px 2px rgba(14,32,60,.05),0 8px 24px rgba(14,32,60,.06);
            --shadow-md:0 2px 4px rgba(14,32,60,.06),0 14px 34px rgba(14,32,60,.10);
            --font-stack:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
        }

        *{
            box-sizing:border-box;
        }
        html{
            scroll-behavior:smooth;
            -webkit-text-size-adjust:100%;
        }
        body{
            margin:0;
            background:var(--wash);
            color:var(--ink);
            font-family:var(--font-stack);
            font-size:16px;
            line-height:1.75;
            letter-spacing:.01em;
        }
        img{
            max-width:100%;
            display:block;
            border:0;
        }
        a{
            color:inherit;
            text-decoration:none;
        }
        button{
            font-family:inherit;
            border:0;
            cursor:pointer;
        }
        input,textarea,select{
            font-family:inherit;
            font-size:1rem;
        }
        ul,ol{
            margin:0;
            padding:0;
        }
        p{
            margin:0 0 1.2em;
        }
        h1,h2,h3,h4{
            margin:0;
            line-height:1.3;
            color:#1D3150;
        }
        h1{
            font-size:clamp(34px,4.5vw,48px);
            font-weight:800;
            letter-spacing:.02em;
        }
        h2{
            font-size:clamp(24px,3vw,32px);
            font-weight:700;
            letter-spacing:.01em;
        }
        h3{
            font-size:20px;
            font-weight:700;
        }
        :focus-visible{
            outline:2px solid var(--primary);
            outline-offset:3px;
            border-radius:4px;
        }
        .site-shell{
            display:flex;
            min-height:100vh;
            background:var(--wash);
        }
        .content-wrap{
            flex:1;
            min-width:0;
            display:flex;
            flex-direction:column;
        }
        .main-content{
            flex:1;
            width:100%;
        }
        .page-section{
            padding:64px clamp(20px,4.8vw,60px);
        }
        .section-inner{
            max-width:1160px;
            margin:0 auto;
        }
        .section-heading{
            max-width:760px;
            margin-bottom:34px;
        }
        .section-heading.center{
            margin-inline:auto;
            text-align:center;
        }
        .eyebrow{
            display:inline-flex;
            align-items:center;
            gap:8px;
            color:var(--primary);
            font-size:14px;
            font-weight:700;
            letter-spacing:.08em;
            margin:0 0 12px;
        }
        .eyebrow::before{
            content:"";
            width:18px;
            height:2px;
            border-radius:2px;
            background:var(--accent);
        }
        .section-title-sub{
            color:var(--muted);
            font-size:15px;
            margin-top:12px;
            max-width:780px;
            line-height:1.8;
        }
        .section-heading.center .section-title-sub{
            margin-inline:auto;
        }

        /* ========== 左侧站点导航 ========== */
        .site-aside{
            width:260px;
            flex:0 0 260px;
            background:var(--paper);
            border-right:1px solid var(--line);
            padding:28px 18px 24px;
            position:sticky;
            top:0;
            height:100vh;
            overflow-y:auto;
            display:flex;
            flex-direction:column;
            z-index:60;
        }
        .brand-block{
            display:inline-flex;
            align-items:center;
            gap:11px;
            border-radius:12px;
            padding:4px 6px 4px 2px;
        }
        .brand-mark{
            width:38px;
            height:38px;
            flex:0 0 38px;
            border-radius:11px;
            background:var(--primary);
            color:#fff;
            display:inline-flex;
            align-items:center;
            justify-content:center;
            font-size:17px;
            box-shadow:0 5px 14px rgba(58,123,213,.28);
        }
        .brand-name{
            font-size:18px;
            font-weight:800;
            color:#1C3155;
            line-height:1.25;
            letter-spacing:.02em;
        }
        .main-nav{
            display:flex;
            flex-direction:column;
            gap:5px;
            margin-top:34px;
        }
        .nav-item{
            display:flex;
            align-items:center;
            gap:11px;
            width:100%;
            padding:11px 14px;
            border-radius:10px;
            font-size:15px;
            font-weight:500;
            color:#52677F;
            transition:.18s ease;
        }
        .nav-item i{
            width:19px;
            text-align:center;
            color:#8A9CB2;
            font-size:14px;
            transition:.18s ease;
        }
        .nav-item:hover{
            background:rgba(58,123,213,.07);
            color:var(--primary);
        }
        .nav-item:hover i{
            color:var(--primary);
        }
        .nav-item.active{
            background:var(--primary-soft);
            color:var(--primary);
            font-weight:700;
        }
        .nav-item.active i{
            color:var(--primary);
        }
        .aside-user{
            margin-top:auto;
            border-top:1px solid var(--line);
            padding:20px 4px 0;
        }
        .aside-user-copy{
            color:var(--muted);
            font-size:13px;
            line-height:1.5;
            margin-bottom:12px;
        }
        .aside-login-btn{
            display:inline-flex;
            align-items:center;
            justify-content:center;
            gap:8px;
            width:100%;
            height:42px;
            border-radius:10px;
            background:var(--primary);
            color:#fff;
            font-size:14px;
            font-weight:700;
            transition:.2s ease;
        }
        .aside-login-btn:hover{
            background:var(--primary-600);
            transform:translateY(-1px);
        }
        .aside-login-btn:active{
            transform:translateY(0);
        }
        .aside-login-btn.is-logged{
            background:var(--primary-soft);
            color:var(--primary);
            border:1px solid var(--primary-border);
        }
        .aside-meta{
            color:#9AA8B8;
            font-size:11px;
            line-height:1.6;
            margin-top:20px;
            text-align:center;
            padding:0 8px 4px;
        }

        .mobile-topbar{
            display:none;
        }

        /* ========== 移动端导航 ========== */
        @media (max-width:1023px){
            .site-shell{
                display:block;
            }
            .site-aside{
                position:fixed;
                left:0;
                top:0;
                bottom:0;
                height:100dvh;
                width:min(330px,88vw);
                transform:translateX(-105%);
                transition:transform .28s ease, box-shadow .28s ease;
                z-index:1200;
                box-shadow:0 0 0 rgba(18,41,71,0);
                border-right:1px solid var(--line);
            }
            .site-aside.is-open{
                transform:translateX(0);
                box-shadow:18px 0 42px rgba(18,41,71,.14);
            }
            .mobile-topbar{
                position:sticky;
                top:0;
                z-index:1100;
                display:flex;
                align-items:center;
                justify-content:space-between;
                height:64px;
                padding:0 18px;
                background:rgba(255,255,255,.96);
                border-bottom:1px solid var(--line);
                backdrop-filter:blur(8px);
            }
            .menu-toggle{
                width:42px;
                height:42px;
                border-radius:11px;
                background:var(--wash);
                color:#2C4A72;
                font-size:17px;
                display:inline-flex;
                align-items:center;
                justify-content:center;
                transition:.2s ease;
            }
            .menu-toggle:hover{
                background:var(--primary-soft);
                color:var(--primary);
            }
            .nav-overlay{
                position:fixed;
                inset:0;
                background:rgba(22,37,61,.38);
                opacity:0;
                pointer-events:none;
                transition:opacity .25s ease;
                z-index:1150;
            }
            .nav-overlay.is-visible{
                opacity:1;
                pointer-events:auto;
            }
            .page-section{
                padding:52px 24px;
            }
            .brand-name{
                font-size:17px;
            }
        }

        /* ========== 按钮 ========== */
        .btn{
            display:inline-flex;
            align-items:center;
            justify-content:center;
            gap:9px;
            min-height:44px;
            padding:0 22px;
            border-radius:10px;
            font-size:15px;
            font-weight:700;
            line-height:1;
            border:1px solid transparent;
            transition:.22s ease;
            position:relative;
        }
        .btn i{
            font-size:14px;
        }
        .btn-primary{
            background:var(--primary);
            color:#fff;
            box-shadow:0 8px 18px rgba(58,123,213,.22);
        }
        .btn-primary:hover{
            background:var(--primary-600);
            transform:translateY(-2px);
            box-shadow:0 10px 22px rgba(58,123,213,.30);
        }
        .btn-primary:active{
            transform:translateY(0);
            box-shadow:none;
        }
        .btn-ghost{
            background:rgba(255,255,255,.08);
            border-color:rgba(255,255,255,.55);
            color:#fff;
        }
        .btn-ghost:hover{
            background:rgba(255,255,255,.18);
            border-color:#fff;
            transform:translateY(-2px);
        }
        .btn-ghost:active{
            transform:translateY(0);
        }
        .btn-soft{
            background:#fff;
            color:var(--primary);
            border-color:var(--primary-border);
        }
        .btn-soft:hover{
            background:var(--primary-soft);
            border-color:var(--primary);
            transform:translateY(-2px);
        }
        .text-link{
            display:inline-flex;
            align-items:center;
            gap:7px;
            color:var(--primary);
            font-weight:600;
            font-size:15px;
            transition:.2s ease;
        }
        .text-link:hover{
            color:var(--primary-600);
            gap:10px;
        }

        /* ========== Hero 回放封面 ========== */
        .hero{
            position:relative;
            isolation:isolate;
            background:
                linear-gradient(118deg,rgba(10,30,58,.92) 0%,rgba(22,55,96,.78) 42%,rgba(19,58,105,.42) 100%),
                url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color:#fff;
            padding:clamp(52px,8vw,104px) clamp(20px,5vw,72px) 80px;
            overflow:hidden;
        }
        .hero::after{
            content:"";
            position:absolute;
            left:0;
            right:0;
            bottom:0;
            height:132px;
            background:linear-gradient(180deg,transparent,rgba(247,250,253,.96));
            z-index:-1;
            pointer-events:none;
        }
        .hero-inner{
            max-width:1160px;
            margin:0 auto;
            position:relative;
            z-index:1;
        }
        .hero-kicker{
            display:inline-flex;
            align-items:center;
            gap:9px;
            color:#C9DFF9;
            font-weight:700;
            font-size:14px;
            letter-spacing:.1em;
            margin-bottom:20px;
            background:rgba(255,255,255,.12);
            border:1px solid rgba(255,255,255,.18);
            padding:7px 14px;
            border-radius:999px;
        }
        .hero h1{
            color:#fff;
            margin-bottom:18px;
        }
        .hero-sub{
            max-width:680px;
            font-size:clamp(16px,1.6vw,19px);
            color:rgba(255,255,255,.9);
            line-height:1.85;
            margin-bottom:28px;
        }
        .hero-sub strong{
            color:#FFD7CB;
            font-weight:700;
        }
        .hero-actions{
            display:flex;
            flex-wrap:wrap;
            gap:14px;
            margin-bottom:32px;
        }
        .hero-trust{
            display:flex;
            flex-wrap:wrap;
            gap:10px 18px;
            color:rgba(255,255,255,.82);
            font-size:13px;
            align-items:center;
        }
        .hero-trust i{
            color:#FFC6B5;
            margin-right:4px;
        }
        .hero-note-card{
            display:inline-flex;
            align-items:flex-start;
            gap:12px;
            background:rgba(255,255,255,.14);
            border:1px solid rgba(255,255,255,.20);
            border-radius:14px;
            padding:14px 18px;
            max-width:680px;
            margin-top:34px;
            backdrop-filter:blur(4px);
            color:rgba(255,255,255,.92);
            font-size:14px;
            line-height:1.7;
        }
        .hero-note-card i{
            color:#FFC6B5;
            font-size:16px;
            margin-top:4px;
        }

        /* ========== 状态徽标 ========== */
        .status-chip{
            display:inline-flex;
            align-items:center;
            gap:6px;
            border-radius:999px;
            padding:5px 12px;
            font-size:13px;
            font-weight:700;
            line-height:1.4;
        }
        .status-replay{
            background:#E9F7FC;
            color:#26789E;
        }
        .status-live{
            background:var(--accent-soft);
            color:#D94F26;
        }
        .status-ready{
            background:var(--success-soft);
            color:#19704C;
        }
        .tag{
            display:inline-flex;
            align-items:center;
            gap:5px;
            background:var(--wash);
            color:#47617C;
            font-size:13px;
            border-radius:999px;
            padding:4px 12px;
            font-weight:600;
        }

        /* ========== 回放中心优势区 ========== */
        .section-white{
            background:var(--paper);
        }
        .section-cool{
            background:var(--cool);
            border-top:1px solid var(--line);
            border-bottom:1px solid var(--line);
        }
        .media-feature{
            display:grid;
            grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);
            gap:clamp(26px,4vw,58px);
            align-items:center;
        }
        .feature-media{
            background:var(--cool);
            border-radius:var(--radius-lg);
            overflow:hidden;
            box-shadow:var(--shadow-sm);
            border:1px solid var(--line);
            position:relative;
        }
        .feature-media img{
            width:100%;
            height:440px;
            object-fit:cover;
            transition:.5s ease;
        }
        .feature-media:hover img{
            transform:scale(1.03);
        }
        .image-caption{
            position:absolute;
            left:14px;
            bottom:14px;
            background:rgba(13,28,50,.62);
            color:#fff;
            padding:7px 14px;
            border-radius:999px;
            font-size:13px;
            line-height:1.5;
            backdrop-filter:blur(4px);
            max-width:calc(100% - 28px);
        }
        .feature-copy p{
            color:var(--muted);
            margin-bottom:1em;
        }
        .feature-copy strong{
            color:var(--ink);
            font-weight:700;
        }
        .check-list{
            list-style:none;
            display:grid;
            gap:12px;
            margin:22px 0 26px;
        }
        .check-list li{
            display:flex;
            gap:12px;
            font-size:15px;
            line-height:1.7;
            color:#40566D;
            align-items:flex-start;
        }
        .check-list li i{
            color:var(--success);
            flex:0 0 18px;
            margin-top:6px;
            font-size:14px;
        }
        .check-list li span{
            color:#2B3A4A;
            font-weight:700;
            display:block;
        }

        /* ========== 回放类型内容卡 ========== */
        .library-grid{
            display:grid;
            grid-template-columns:1.25fr 1fr 1fr;
            gap:18px;
            align-items:stretch;
        }
        .library-card{
            position:relative;
            background:#fff;
            border:1px solid var(--line);
            border-radius:var(--radius-lg);
            overflow:hidden;
            box-shadow:var(--shadow-sm);
            transition:.26s ease;
            display:flex;
            flex-direction:column;
        }
        .library-card:hover{
            transform:translateY(-3px);
            box-shadow:var(--shadow-md);
        }
        .library-card--main{
            background:linear-gradient(180deg,rgba(255,255,255,0),rgba(247,250,253,.7)),#fff;
        }
        .library-thumb{
            height:216px;
            overflow:hidden;
            background:#DDE5EF;
            position:relative;
        }
        .library-thumb img{
            width:100%;
            height:100%;
            object-fit:cover;
            transition:.45s ease;
        }
        .library-card:hover .library-thumb img{
            transform:scale(1.05);
        }
        .library-thumb .status-chip{
            position:absolute;
            left:14px;
            top:14px;
        }
        .library-body{
            padding:20px 21px 22px;
            display:flex;
            flex-direction:column;
            flex:1;
        }
        .library-body h3{
            margin-bottom:8px;
        }
        .library-body p{
            color:var(--muted);
            font-size:14px;
            line-height:1.75;
            margin-bottom:14px;
        }
        .library-meta{
            margin-top:auto;
            color:#92A1B2;
            font-size:12px;
            display:flex;
            gap:8px;
            flex-wrap:wrap;
        }

        /* ========== 路径流程 ========== */
        .steps-grid{
            display:grid;
            grid-template-columns:repeat(4,1fr);
            gap:16px;
            counter-reset:steps;
            margin-top:10px;
        }
        .step-card{
            background:#fff;
            border:1px solid var(--line);
            border-radius:var(--radius);
            padding:26px 22px;
            box-shadow:var(--shadow-sm);
            transition:.24s ease;
            position:relative;
        }
        .step-card:hover{
            transform:translateY(-3px);
            box-shadow:var(--shadow-md);
            border-color:var(--primary-border);
        }
        .step-num{
            display:inline-flex;
            align-items:center;
            justify-content:center;
            width:34px;
            height:34px;
            border-radius:50%;
            background:var(--primary);
            color:#fff;
            font-weight:800;
            font-size:14px;
            margin-bottom:18px;
            font-variant-numeric:tabular-nums;
        }
        .step-card h3{
            font-size:17px;
            margin-bottom:8px;
        }
        .step-card p{
            color:var(--muted);
            font-size:14px;
            line-height:1.7;
            margin:0;
        }
        .step-note{
            background:#fff7F0;
            border:1px solid #F7DDD2;
            color:#9A5B44;
            border-radius:12px;
            padding:12px 16px;
            font-size:14px;
            line-height:1.7;
            margin-top:26px;
        }
        .step-note i{
            color:var(--accent);
            margin-right:6px;
        }

        /* ========== 使用场景 ========== */
        .scenario-grid{
            display:grid;
            grid-template-columns:1fr 1fr;
            gap:18px;
        }
        .scenario-card{
            display:flex;
            gap:20px;
            background:#fff;
            border:1px solid var(--line);
            border-radius:var(--radius-lg);
            padding:22px;
            box-shadow:var(--shadow-sm);
            transition:.24s ease;
            align-items:flex-start;
        }
        .scenario-card--wide{
            grid-column:1/-1;
            align-items:center;
            background:linear-gradient(100deg,#fff 0%,#F7FBFF 100%);
        }
        .scenario-card:hover{
            transform:translateY(-3px);
            box-shadow:var(--shadow-md);
            border-color:var(--primary-border);
        }
        .scenario-icon{
            flex:0 0 50px;
            width:50px;
            height:50px;
            border-radius:14px;
            background:var(--primary-soft);
            color:var(--primary);
            display:flex;
            align-items:center;
            justify-content:center;
            font-size:20px;
        }
        .scenario-icon.orange{
            background:var(--accent-soft);
            color:#D95627;
        }
        .scenario-icon.green{
            background:var(--success-soft);
            color:#1C7A4C;
        }
        .scenario-body h3{
            margin-bottom:6px;
            font-size:18px;
        }
        .scenario-body p{
            color:var(--muted);
            font-size:14px;
            line-height:1.75;
            margin:0;
        }
        .scenario-tip{
            margin-top:10px;
            font-size:13px;
            color:#5D7391;
        }
        .scenario-tip strong{
            color:var(--primary);
        }

        /* ========== FAQ ========== */
        .faq-wrap{
            max-width:900px;
            margin:0 auto;
        }
        .faq-list{
            border-top:1px solid var(--line);
        }
        details.faq-item{
            border-bottom:1px solid var(--line);
            padding:12px 0;
        }
        .faq-item summary{
            list-style:none;
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:16px;
            cursor:pointer;
            padding:14px 4px;
            font-size:16px;
            font-weight:700;
            color:#263A57;
            transition:.2s ease;
            border-radius:8px;
        }
        .faq-item summary::-webkit-details-marker{
            display:none;
        }
        .faq-item summary:hover{
            color:var(--primary);
        }
        .faq-icon{
            flex:0 0 28px;
            width:28px;
            height:28px;
            border-radius:50%;
            background:var(--wash);
            color:var(--primary);
            display:inline-flex;
            align-items:center;
            justify-content:center;
            font-size:13px;
            transition:.25s ease;
        }
        details[open] .faq-icon{
            background:var(--primary);
            color:#fff;
            transform:rotate(45deg);
        }
        .faq-answer{
            padding:4px 18px 20px 20px;
            color:var(--muted);
            line-height:1.85;
            font-size:15px;
            max-width:800px;
        }
        .faq-answer p{
            margin-bottom:.8em;
        }
        .faq-answer p:last-child{
            margin-bottom:0;
        }

        /* ========== 底端 CTA ========== */
        .cta-section{
            background:var(--cool);
            border-top:1px solid var(--line);
        }
        .cta-card{
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:28px;
            background:#fff;
            border:1px solid var(--line);
            border-radius:22px;
            padding:clamp(26px,4vw,50px);
            box-shadow:var(--shadow-sm);
            position:relative;
            overflow:hidden;
        }
        .cta-card::before{
            content:"";
            position:absolute;
            right:-50px;
            top:-50px;
            width:220px;
            height:220px;
            background:radial-gradient(circle,rgba(58,123,213,.10),transparent 70%);
            pointer-events:none;
        }
        .cta-content h2{
            margin-bottom:8px;
        }
        .cta-content p{
            color:var(--muted);
            max-width:560px;
            margin-bottom:0;
        }
        .cta-btn-group{
            flex:0 0 auto;
            display:flex;
            align-items:center;
            gap:12px;
            flex-wrap:wrap;
        }

        /* ========== 页脚 ========== */
        .footer-card{
            background:#fff;
            border-top:1px solid var(--line);
            padding:52px clamp(20px,4.8vw,60px) 28px;
        }
        .footer-top{
            max-width:1160px;
            margin:0 auto;
            display:flex;
            flex-wrap:wrap;
            gap:24px;
            align-items:flex-start;
            justify-content:space-between;
            padding-bottom:28px;
        }
        .footer-brand{
            display:inline-flex;
            align-items:center;
            gap:10px;
            font-weight:800;
            font-size:17px;
            color:#1C3155;
        }
        .footer-brand .brand-mark{
            width:34px;
            height:34px;
            flex-basis:34px;
            font-size:15px;
            color:#fff;
        }
        .footer-quote{
            color:var(--muted);
            font-size:14px;
            line-height:1.8;
            margin:10px 0 0;
            max-width:420px;
        }
        .footer-links{
            display:flex;
            flex-wrap:wrap;
            gap:10px 18px;
            margin-top:6px;
        }
        .footer-links a{
            color:#62758B;
            font-size:14px;
            font-weight:500;
            transition:.2s ease;
        }
        .footer-links a:hover{
            color:var(--primary);
        }
        .footer-bottom{
            max-width:1160px;
            margin:0 auto;
            border-top:1px solid var(--line);
            padding-top:20px;
            display:flex;
            flex-wrap:wrap;
            gap:8px 20px;
            justify-content:space-between;
            color:#99A7B8;
            font-size:13px;
            line-height:1.7;
        }
        .legal{
            max-width:720px;
        }

        /* ========== 响应式断点 ========== */
        @media (max-width:1180px){
            .steps-grid{
                grid-template-columns:repeat(2,1fr);
            }
            .library-grid{
                grid-template-columns:1.1fr 1fr;
            }
            .library-card--main{
                grid-column:1/-1;
            }
        }
        @media (max-width:900px){
            .media-feature{
                grid-template-columns:1fr;
            }
            .feature-media img{
                height:330px;
            }
            .library-grid{
                grid-template-columns:1fr 1fr;
            }
            .scenario-grid{
                grid-template-columns:1fr;
            }
            .scenario-card--wide{
                grid-column:auto;
            }
        }
        @media (max-width:767px){
            .page-section{
                padding:44px 18px;
            }
            .hero{
                padding:44px 18px 66px;
                min-height:0;
            }
            .hero-sub{
                font-size:15px;
            }
            .hero-actions .btn{
                width:100%;
            }
            .hero-note-card{
                margin-top:24px;
                padding:13px 15px;
                font-size:13px;
            }
            .steps-grid{
                grid-template-columns:1fr;
                gap:14px;
            }
            .step-card{
                padding:22px 18px;
            }
            .library-grid{
                grid-template-columns:1fr;
            }
            .library-card--main{
                grid-column:auto;
            }
            .library-thumb{
                height:190px;
            }
            .faq-item summary{
                font-size:15px;
                padding:13px 2px;
            }
            .faq-answer{
                font-size:14px;
            }
            .cta-card{
                flex-direction:column;
                align-items:flex-start;
                gap:18px;
            }
            .cta-btn-group .btn{
                width:100%;
            }
            .footer-top{
                flex-direction:column;
                align-items:flex-start;
            }
            .footer-links{
                width:100%;
            }
            .footer-bottom{
                flex-direction:column;
            }
            .legal{
                font-size:12px;
            }
        }