/* roulang page: index */
:root{
  --c-primary:#2FE0C8;
  --c-primary-hover:#7BF2E0;
  --c-secondary:#7A5CFF;
  --c-accent:#FFB241;
  --c-success:#4ADE80;
  --c-warn:#FF6B6B;
  --bg-base:#070B14;
  --panel:#0E1524;
  --glass:rgba(255,255,255,.045);
  --line:rgba(255,255,255,.09);
  --text:#E9EFF8;
  --text-dim:#9AA8BD;
  --text-mute:#697790;
  --radius-card:20px;
  --radius-chip:14px;
  --radius-img:16px;
  --radius-btn:12px;
  --shadow-card:0 18px 40px rgba(0,0,0,.35);
  --font-sans:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  overflow-x:hidden;
  position:relative;
  padding-bottom:0;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 420px at 18% -6%, rgba(47,224,200,.10), transparent 68%),
    radial-gradient(760px 480px at 88% 34%, rgba(122,92,255,.08), transparent 70%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.03;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(/%23n)'/%3E%3C/svg%3E");
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(47,224,200,.28);color:#fff;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:1;
}
@media (min-width:768px){ .container{padding:0 32px;} }
@media (min-width:1280px){ .container{max-width:1200px;} }

.site-header{
  position:sticky;
  top:0;
  z-index:60;
  height:72px;
  display:flex;
  align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .28s ease,border-color .28s ease,backdrop-filter .28s ease;
}
.site-header.is-scrolled{
  background:rgba(9,13,22,.78);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
  display:flex;
  align-items:center;
  gap:20px;
}
@media (min-width:768px){ .nav-wrap{padding:0 32px;} }
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:38px;
  height:38px;
  border-radius:12px;
  display:grid;
  place-items:center;
  font-family:var(--font-mono);
  font-weight:700;
  font-size:17px;
  color:#04120F;
  background:linear-gradient(135deg,var(--c-primary),var(--c-secondary));
  box-shadow:0 0 0 1px rgba(47,224,200,.4),0 8px 22px rgba(47,224,200,.22);
}
.brand-text{
  font-size:17px;
  font-weight:700;
  letter-spacing:.2px;
  white-space:nowrap;
}
.brand-text .num{
  background:linear-gradient(120deg,var(--c-primary),var(--c-primary-hover) 60%,var(--c-secondary));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.nav-links{
  display:none;
  align-items:center;
  gap:6px;
  margin-left:18px;
}
@media (min-width:1024px){ .nav-links{display:flex;} }
.nav-link{
  position:relative;
  padding:8px 14px;
  font-size:15px;
  color:var(--text-dim);
  border-radius:10px;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.active{color:var(--c-primary);}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
  box-shadow:0 0 10px rgba(47,224,200,.9);
}
.nav-right{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:14px;
}
.nav-contact{
  display:none;
  font-size:14px;
  color:var(--text-dim);
  transition:color .2s ease;
}
.nav-contact:hover{color:var(--c-primary);}
@media (min-width:1024px){ .nav-contact{display:inline-block;} }

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .2s ease,filter .2s ease;
  white-space:nowrap;
}
.btn-primary{
  color:#04120F;
  background:linear-gradient(135deg,var(--c-primary),var(--c-secondary));
  box-shadow:0 0 0 1px rgba(47,224,200,.5),0 8px 28px rgba(47,224,200,.28);
}
.btn-primary:hover{
  transform:translateY(-2px);
  filter:brightness(1.06);
  box-shadow:0 0 0 1px rgba(47,224,200,.6),0 14px 40px rgba(47,224,200,.36);
}
.btn-primary:active{transform:scale(.98);}
.btn-primary:disabled{opacity:.4;box-shadow:none;cursor:not-allowed;}
.btn-secondary{
  background:transparent;
  color:var(--text);
  border-color:rgba(255,255,255,.18);
}
.btn-secondary:hover{
  background:rgba(47,224,200,.1);
  border-color:var(--c-primary);
  color:var(--c-primary-hover);
}
.btn-secondary:active{transform:scale(.98);}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px;}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:600;
  color:var(--c-primary);
  transition:color .2s ease;
}
.btn-link span{
  display:inline-block;
  transition:transform .22s ease;
}
.btn-link:hover{color:var(--c-primary-hover);}
.btn-link:hover span{transform:translateX(4px);}

.hero{
  position:relative;
  padding:44px 0 64px;
  overflow:hidden;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  opacity:.5;
  z-index:0;
}
.hero-mask{
  position:absolute;
  inset:0;
  z-index:0;
  background:
    linear-gradient(90deg,rgba(7,11,20,.94) 0%,rgba(7,11,20,.78) 46%,rgba(7,11,20,.56) 100%),
    radial-gradient(560px 320px at 22% 18%, rgba(47,224,200,.14), transparent 70%),
    radial-gradient(520px 300px at 82% 62%, rgba(122,92,255,.14), transparent 72%);
}
.hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  gap:32px;
  align-items:start;
  padding-top:24px;
}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;padding-top:48px;}
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  font-size:12.5px;
  color:var(--c-primary);
  background:rgba(47,224,200,.08);
  border:1px solid rgba(47,224,200,.24);
  margin-bottom:18px;
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--c-primary);
  box-shadow:0 0 10px rgba(47,224,200,.9);
}
h1{
  font-size:clamp(30px,4.6vw,50px);
  line-height:1.15;
  font-weight:700;
  letter-spacing:-.4px;
}
h1 .hl{
  background:linear-gradient(120deg,var(--c-primary),var(--c-primary-hover) 50%,var(--c-secondary));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  margin-top:18px;
  max-width:620px;
  font-size:16px;
  line-height:1.9;
  color:var(--text-dim);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.hero-micro{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px 22px;
  margin-top:34px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
@media (min-width:640px){ .hero-micro{grid-template-columns:repeat(4,minmax(0,1fr));} }
.micro-num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:22px;
  font-weight:700;
  color:var(--c-primary);
}
.micro-label{font-size:12px;color:var(--text-mute);line-height:1.6;margin-top:2px;}

.glass{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.panel{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
}
.data-card{padding:24px;}
.data-head{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:14px;
}
.data-title{font-size:14px;color:var(--text-dim);}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  font-family:var(--font-mono);
}
.badge-up{color:var(--c-success);background:rgba(74,222,128,.12);border:1px solid rgba(74,222,128,.28);}
.badge-accent{color:var(--c-accent);background:rgba(255,178,65,.12);border:1px solid rgba(255,178,65,.28);}
.badge-primary{color:var(--c-primary);background:rgba(47,224,200,.1);border:1px solid rgba(47,224,200,.26);}
.badge-violet{color:#B9A8FF;background:rgba(122,92,255,.14);border:1px solid rgba(122,92,255,.3);}
.spark{width:100%;height:96px;margin:18px 0 6px;display:block;}
.data-metrics{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
  padding-top:18px;
  border-top:1px solid var(--line);
}
.metric-num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:26px;
  font-weight:700;
}
.metric-cap{font-size:12px;color:var(--text-mute);margin-top:2px;}

.section{padding:56px 0;position:relative;z-index:1;}
@media (min-width:1024px){ .section{padding:92px 0;} }
.sec-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px;
  margin-bottom:38px;
}
.sec-tag{
  font-family:var(--font-mono);
  font-size:12.5px;
  color:var(--c-primary);
  letter-spacing:.6px;
  margin-bottom:10px;
  display:block;
}
h2{
  font-size:clamp(23px,3vw,34px);
  line-height:1.25;
  font-weight:700;
}
.sec-desc{
  margin-top:12px;
  font-size:15px;
  color:var(--text-dim);
  max-width:640px;
}
.divider{
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,224,200,.5),transparent);
  border:0;
  margin:0;
}

.kpi-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
@media (min-width:1024px){ .kpi-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;} }
.kpi-card{
  padding:22px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.kpi-card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,224,200,.45);
  box-shadow:0 18px 40px rgba(0,0,0,.35);
}
.kpi-top{display:flex;align-items:center;justify-content:space-between;gap:10px;}
.kpi-value{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:36px;
  font-weight:700;
  line-height:1.1;
  margin-top:14px;
}
.kpi-value small{font-size:15px;color:var(--text-dim);margin-left:4px;font-weight:500;}
.kpi-cap{font-size:12.5px;color:var(--text-mute);margin-top:6px;line-height:1.7;}
.kpi-bar{
  height:4px;
  border-radius:999px;
  background:rgba(255,255,255,.07);
  margin-top:16px;
  overflow:hidden;
}
.kpi-bar i{
  display:block;
  height:100%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-secondary));
}

.bento{
  display:grid;
  grid-template-columns:1fr;
  gap:18px;
}
@media (min-width:768px){
  .bento{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
  .bento-lg{grid-column:span 2;grid-row:span 2;}
  .bento-col2{grid-column:span 2;}
}
.bento-card{
  padding:24px;
  display:flex;
  flex-direction:column;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.bento-card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,224,200,.45);
  box-shadow:0 18px 40px rgba(0,0,0,.35);
}
.icon-box{
  width:46px;
  height:46px;
  border-radius:var(--radius-chip);
  display:grid;
  place-items:center;
  background:rgba(47,224,200,.1);
  border:1px solid rgba(47,224,200,.22);
  color:var(--c-primary);
  margin-bottom:16px;
}
.bento-card h3{font-size:19px;font-weight:600;line-height:1.45;}
.bento-card p{
  margin-top:10px;
  font-size:14.5px;
  color:var(--text-dim);
  line-height:1.85;
}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.chip{
  padding:4px 12px;
  border-radius:999px;
  font-size:12.5px;
  color:var(--text-dim);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
}
.bento-foot{margin-top:auto;padding-top:20px;}

.compare-grid{
  display:grid;
  gap:22px;
}
@media (min-width:1024px){ .compare-grid{grid-template-columns:1.35fr 1fr;gap:30px;} }
.compare-panel{padding:26px;}
.compare-row{padding:18px 0;border-bottom:1px solid var(--line);}
.compare-row:last-child{border-bottom:0;padding-bottom:0;}
.compare-label{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:14.5px;
  margin-bottom:12px;
}
.compare-label b{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:15px;}
.bar-line{display:flex;align-items:center;gap:12px;margin-bottom:8px;}
.bar-tag{
  width:44px;
  font-size:12px;
  color:var(--text-mute);
  flex-shrink:0;
}
.bar-track{
  flex:1;
  height:10px;
  border-radius:999px;
  background:rgba(255,255,255,.06);
  overflow:hidden;
}
.bar-fill{display:block;height:100%;border-radius:999px;}
.bar-before{background:linear-gradient(90deg,rgba(150,163,184,.75),rgba(150,163,184,.35));}
.bar-after{background:linear-gradient(90deg,var(--c-primary),var(--c-secondary));box-shadow:0 0 16px rgba(47,224,200,.4);}
.timeline{position:relative;padding-left:26px;}
.timeline::before{
  content:"";
  position:absolute;
  left:7px;top:8px;bottom:8px;
  width:2px;
  background:linear-gradient(180deg,var(--c-primary),rgba(122,92,255,.4));
  border-radius:2px;
}
.tl-item{position:relative;padding-bottom:22px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";
  position:absolute;
  left:-25px;top:8px;
  width:12px;height:12px;
  border-radius:50%;
  background:var(--bg-base);
  border:2px solid var(--c-primary);
  box-shadow:0 0 12px rgba(47,224,200,.7);
}
.tl-item h4{font-size:15.5px;font-weight:600;}
.tl-item p{font-size:13.5px;color:var(--text-dim);margin-top:4px;line-height:1.8;}

.audience-grid{
  display:grid;
  gap:20px;
  grid-template-columns:1fr;
}
@media (min-width:640px){ .audience-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
@media (min-width:1024px){ .audience-grid{grid-template-columns:repeat(4,minmax(0,1fr));} }
.aud-card{
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.aud-card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,224,200,.45);
  box-shadow:0 18px 40px rgba(0,0,0,.35);
}
.aud-media{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:linear-gradient(135deg,rgba(47,224,200,.18),rgba(122,92,255,.18));
}
.aud-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .4s ease;
}
.aud-card:hover .aud-media img{transform:scale(1.03);}
.aud-body{padding:20px;}
.aud-body h3{font-size:17px;font-weight:600;}
.aud-body p{font-size:13.5px;color:var(--text-dim);margin-top:8px;line-height:1.8;}

.news-grid{
  display:grid;
  gap:22px;
  grid-template-columns:1fr;
}
@media (min-width:640px){ .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
@media (min-width:1024px){ .news-grid{grid-template-columns:repeat(3,minmax(0,1fr));} }
.news-card{
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.news-card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,224,200,.45);
  box-shadow:0 18px 40px rgba(0,0,0,.35);
}
.news-media{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:linear-gradient(135deg,rgba(47,224,200,.16),rgba(122,92,255,.16));
}
.news-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .news-media img{transform:scale(1.03);}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.news-title{
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  margin-top:12px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-excerpt{
  font-size:13.5px;
  color:var(--text-dim);
  margin-top:10px;
  line-height:1.8;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-meta{
  margin-top:auto;
  padding-top:18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-family:var(--font-mono);
  font-size:12.5px;
  color:var(--text-mute);
}
.empty-state{
  border:1px dashed rgba(255,255,255,.18);
  border-radius:var(--radius-card);
  background:var(--glass);
  padding:44px 24px;
  text-align:center;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.empty-state p{color:var(--text-dim);font-size:15px;}
.empty-state .btn{margin-top:20px;}

.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--glass);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .25s ease,background .25s ease;
}
.faq-item:hover{border-color:rgba(47,224,200,.35);}
.faq-item.is-open{
  border-color:rgba(47,224,200,.45);
  background:rgba(255,255,255,.06);
  box-shadow:inset 3px 0 0 var(--c-primary);
}
.faq-q{
  width:100%;
  min-height:60px;
  display:flex;
  align-items:center;
  gap:16px;
  padding:16px 22px;
  background:transparent;
  border:0;
  text-align:left;
  cursor:pointer;
  font-size:16px;
  font-weight:600;
  color:var(--text);
}
.faq-idx{
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--c-primary);
  flex-shrink:0;
}
.faq-sign{
  margin-left:auto;
  width:26px;height:26px;
  border-radius:8px;
  display:grid;
  place-items:center;
  border:1px solid var(--line);
  color:var(--c-primary);
  font-family:var(--font-mono);
  font-size:15px;
  flex-shrink:0;
  transition:transform .25s ease,background .25s ease;
}
.faq-item.is-open .faq-sign{background:rgba(47,224,200,.14);transform:rotate(180deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s ease;
}
.faq-item.is-open .faq-a{max-height:420px;}
.faq-a-inner{
  padding:0 22px 22px 60px;
  font-size:14.5px;
  color:var(--text-dim);
  line-height:1.9;
}

.contact-grid{display:grid;gap:26px;}
@media (min-width:1024px){ .contact-grid{grid-template-columns:1.4fr .6fr;gap:34px;} }
.form-card{padding:26px;}
@media (min-width:768px){ .form-card{padding:34px;} }
.form-row{display:grid;gap:18px;}
@media (min-width:640px){ .form-row.two{grid-template-columns:repeat(2,minmax(0,1fr));} }
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:13.5px;color:var(--text-dim);}
.field input,.field select,.field textarea{
  width:100%;
  padding:12px 14px;
  border-radius:var(--radius-btn);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text);
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{resize:vertical;min-height:112px;line-height:1.8;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--c-primary);
  background:rgba(255,255,255,.06);
  box-shadow:0 0 0 3px rgba(47,224,200,.16);
}
.field select option{background:#0E1524;color:#E9EFF8;}
.check-row{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13.5px;
  color:var(--text-dim);
  margin-top:6px;
}
.check-row input{width:16px;height:16px;margin-top:4px;accent-color:#2FE0C8;flex-shrink:0;}
.form-actions{margin-top:24px;display:flex;flex-wrap:wrap;align-items:center;gap:16px;}
.form-note{font-size:12.5px;color:var(--text-mute);}
.trust-list{display:flex;flex-direction:column;gap:14px;}
.trust-item{
  display:flex;
  align-items:center;
  gap:12px;
  padding:16px 18px;
  border-radius:var(--radius-chip);
  background:var(--glass);
  border:1px solid var(--line);
  font-size:14.5px;
  color:var(--text-dim);
}
.trust-item i{
  width:8px;height:8px;border-radius:50%;
  background:var(--c-primary);
  box-shadow:0 0 10px rgba(47,224,200,.85);
  flex-shrink:0;
}
.success-card{
  display:none;
  padding:36px 24px;
  text-align:center;
}
.success-card.is-visible{display:block;}
.success-icon{
  width:56px;height:56px;
  margin:0 auto 18px;
  border-radius:50%;
  display:grid;place-items:center;
  background:rgba(74,222,128,.14);
  border:1px solid rgba(74,222,128,.35);
  color:var(--c-success);
}
.success-card h3{font-size:19px;font-weight:600;}
.success-card p{margin-top:10px;font-size:14.5px;color:var(--text-dim);}
.success-card .btn{margin-top:22px;}

.cta-band{
  padding:30px 26px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.cta-band h3{font-size:20px;font-weight:700;}
.cta-band p{font-size:14px;color:var(--text-dim);margin-top:6px;}

.site-footer{
  position:relative;
  z-index:1;
  margin-top:40px;
  padding-top:56px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(14,21,36,.5),rgba(7,11,20,.9));
}
.footer-glow{
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,224,200,.55),transparent);
}
.footer-grid{
  display:grid;
  gap:28px;
  grid-template-columns:1fr;
  padding-bottom:40px;
}
@media (min-width:768px){ .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
@media (min-width:1024px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:34px;} }
.footer-brand{font-size:17px;font-weight:700;}
.footer-desc{
  margin-top:14px;
  font-size:14px;
  color:var(--text-dim);
  line-height:1.85;
  max-width:340px;
}
.footer-col h4{
  font-size:13px;
  color:var(--text-mute);
  letter-spacing:.5px;
  margin-bottom:14px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{
  font-size:14.5px;
  color:var(--text-dim);
  transition:color .2s ease;
}
.footer-col a:hover{color:var(--c-primary);}
.footer-contact li{font-size:14.5px;color:var(--text-dim);}
.footer-toggle{display:flex;align-items:center;justify-content:space-between;width:100%;background:transparent;border:0;cursor:pointer;padding:0;}
.footer-toggle .plus{
  font-family:var(--font-mono);
  color:var(--c-primary);
  display:none;
}
.footer-body{margin-top:14px;}
@media (max-width:767px){
  .footer-toggle{border-bottom:1px solid var(--line);padding-bottom:12px;}
  .footer-toggle .plus{display:block;}
  .footer-body{display:none;}
  .footer-col.is-open .footer-body{display:block;}
  .footer-col.is-open .footer-toggle{border-bottom-color:transparent;}
}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-mute);
}
.footer-bottom a{color:var(--text-dim);}
.footer-bottom a:hover{color:var(--c-primary);}

.mobile-tab{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:70;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  height:64px;
  background:rgba(9,13,22,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
@media (min-width:1024px){ .mobile-tab{display:none;} }
.tab-item{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:3px;
  font-size:10.5px;
  color:var(--text-mute);
  position:relative;
  transition:color .2s ease,transform .2s ease;
}
.tab-item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;}
.tab-item.active{color:var(--c-primary);transform:translateY(-2px);}
.tab-item.active::before{
  content:"";
  position:absolute;
  top:0;left:50%;
  transform:translateX(-50%);
  width:28px;height:2px;
  border-radius:2px;
  background:var(--c-primary);
  box-shadow:0 0 10px rgba(47,224,200,.9);
}
@media (max-width:1023px){
  body{padding-bottom:84px;}
}

.fade-up{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .3s ease-out,transform .3s ease-out;
}
.fade-up.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important;}
  .fade-up{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}
::-webkit-scrollbar{width:8px;height:8px;}
::-webkit-scrollbar-track{background:#070B14;}
::-webkit-scrollbar-thumb{background:rgba(47,224,200,.25);border-radius:8px;}
::-webkit-scrollbar-thumb:hover{background:rgba(47,224,200,.45);}

/* roulang page: article */
:root{
  --c-primary:#2FE0C8;
  --c-primary-hover:#7BF2E0;
  --c-secondary:#7A5CFF;
  --c-accent:#FFB241;
  --c-success:#4ADE80;
  --c-warn:#FF6B6B;
  --bg-base:#070B14;
  --panel:#0E1524;
  --glass:rgba(255,255,255,.045);
  --line:rgba(255,255,255,.09);
  --text:#E8EEF7;
  --text-weak:#A8B6CB;
  --text-mute:#7C8CA4;
  --radius-card:20px;
  --radius-inner:14px;
  --radius-pic:16px;
  --radius-btn:12px;
  --shadow-panel:0 18px 40px rgba(0,0,0,.35);
  --dur:.26s;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-bottom:88px;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
  font-size:15.5px;
  line-height:1.9;
  color:var(--text);
  background-color:var(--bg-base);
  background-image:
    radial-gradient(900px 480px at 16% -4%, rgba(47,224,200,.10), transparent 68%),
    radial-gradient(780px 460px at 84% 8%, rgba(122,92,255,.10), transparent 70%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.022;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(/%23n)'/%3E%3C/svg%3E");
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{padding-left:0;margin:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:rgba(47,224,200,.28)}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-track{background:#0A101C}
::-webkit-scrollbar-thumb{background:rgba(47,224,200,.28);border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:rgba(47,224,200,.45)}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:2}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1024px){body{padding-bottom:0}}

/* ---------- 阅读进度条 ---------- */
.progress-bar{
  position:fixed;top:0;left:0;height:2px;width:0;z-index:90;
  background:linear-gradient(90deg,#2FE0C8,#7A5CFF);
  box-shadow:0 0 12px rgba(47,224,200,.85);
  transition:width .12s linear;
}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background var(--dur) ease,border-color var(--dur) ease,backdrop-filter var(--dur) ease;
}
.site-header.scrolled{
  background:rgba(7,11,20,.74);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  max-width:1200px;margin:0 auto;padding:0 20px;height:72px;
  display:flex;align-items:center;gap:18px;
}
@media (min-width:768px){.nav-wrap{padding:0 32px;gap:24px}}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,#2FE0C8,#7A5CFF);
  color:#04141A;font-weight:800;font-size:17px;line-height:1;
  box-shadow:0 6px 18px rgba(47,224,200,.26);
}
.brand-text{font-size:16.5px;font-weight:700;color:var(--text);white-space:nowrap}
.brand-text .num{
  background:linear-gradient(120deg,#2FE0C8,#7A5CFF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.nav-links{display:none}
.nav-link{
  position:relative;padding:8px 12px;border-radius:10px;
  font-size:14.5px;color:var(--text-weak);
  transition:color var(--dur) ease,background var(--dur) ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--c-primary)}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-6px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,#2FE0C8,#7A5CFF);
  box-shadow:0 0 10px rgba(47,224,200,.8);
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav-contact{
  display:none;font-size:14px;color:var(--text-weak);
  transition:color var(--dur) ease;
}
.nav-contact:hover{color:var(--c-primary)}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
  .nav-contact{display:inline-flex}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);
  font-size:14.5px;font-weight:600;line-height:1.2;cursor:pointer;
  border:1px solid transparent;text-align:center;
  transition:transform var(--dur) ease,box-shadow var(--dur) ease,background var(--dur) ease,border-color var(--dur) ease,filter var(--dur) ease;
}
.btn-primary{
  background:linear-gradient(135deg,#2FE0C8,#7A5CFF);
  color:#04141A;
  box-shadow:0 0 0 1px rgba(47,224,200,.5),0 8px 28px rgba(47,224,200,.28);
}
.btn-primary:hover{
  transform:translateY(-2px);filter:brightness(1.06);
  box-shadow:0 0 0 1px rgba(47,224,200,.6),0 12px 40px rgba(47,224,200,.42);
}
.btn-primary:active{transform:scale(.98)}
.btn-primary:disabled{opacity:.4;box-shadow:none;filter:none;cursor:not-allowed;transform:none}
.btn-ghost{
  background:transparent;border:1px solid var(--line);color:var(--text);
}
.btn-ghost:hover{
  background:rgba(47,224,200,.10);border-color:var(--c-primary);color:#fff;transform:translateY(-2px);
}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{padding:9px 16px;font-size:13.5px;border-radius:10px}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--c-primary);
}
.link-more::after{content:"→";transition:transform var(--dur) ease}
.link-more:hover::after{transform:translateX(4px)}

/* ---------- 文章头部区 ---------- */
.article-hero{
  position:relative;overflow:hidden;
  padding:26px 0 44px;
  border-bottom:1px solid var(--line);
}
.article-hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(90deg,rgba(7,11,20,.95) 0%,rgba(7,11,20,.72) 58%,rgba(7,11,20,.92) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.9;
}
.article-hero::after{
  content:"";position:absolute;inset:0;z-index:0;
  background:radial-gradient(620px 260px at 24% 0%,rgba(47,224,200,.16),transparent 70%);
}
.article-hero .container{position:relative;z-index:2}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-mute);margin-bottom:22px;
}
.breadcrumb a{color:var(--text-mute);transition:color var(--dur) ease}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:var(--text-weak);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.article-title{
  font-size:clamp(28px,4.2vw,46px);line-height:1.18;font-weight:700;
  letter-spacing:0;color:#fff;max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  margin-top:22px;font-size:13px;color:var(--text-mute);
}
.badge-cat{
  display:inline-flex;align-items:center;
  padding:5px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
  color:#04141A;background:linear-gradient(120deg,#2FE0C8,#7BF2E0);
}
.badge-accent{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  color:#FFB241;border:1px solid rgba(255,178,65,.35);background:rgba(255,178,65,.10);
}
.mono{font-family:"JetBrains Mono",ui-monospace,SFMono-Regular,Consolas,monospace;font-variant-numeric:tabular-nums}
.meta-sep{width:1px;height:14px;background:var(--line)}

/* ---------- 移动端目录 ---------- */
.toc-mobile{margin-top:26px}
.toc-mobile summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:13px 18px;border-radius:var(--radius-inner);
  background:var(--glass);border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--text);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary .plus{color:var(--c-primary);font-weight:700}
.toc-mobile[open] summary{border-color:rgba(47,224,200,.45)}
.toc-mobile[open] summary .plus::before{content:"−"}
.toc-mobile[open] summary .plus{font-size:0}
.toc-mobile[open] summary .plus::before{font-size:16px}
.toc-mobile .toc-list{padding:12px 18px 4px}
@media (min-width:1024px){.toc-mobile{display:none}}

/* ---------- 布局 ---------- */
.article-main{padding:48px 0 20px}
.article-layout{display:grid;grid-template-columns:1fr;gap:36px}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:44px;align-items:start}
}

/* ---------- 正文排版 ---------- */
.article-body{max-width:760px;font-size:16px;line-height:1.9;color:#D3DEEC}
.article-body > * + *{margin-top:20px}
.article-body p{margin:0;color:#C9D6E6}
.article-body h2{
  position:relative;margin:46px 0 18px;padding-left:16px;
  font-size:clamp(21px,2.4vw,26px);line-height:1.35;font-weight:700;color:#fff;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:1.05em;border-radius:3px;
  background:linear-gradient(180deg,#2FE0C8,#7A5CFF);
  box-shadow:0 0 12px rgba(47,224,200,.55);
}
.article-body h3{margin:32px 0 12px;font-size:19px;line-height:1.45;font-weight:600;color:#fff}
.article-body h4{margin:24px 0 10px;font-size:16.5px;font-weight:600;color:#EAF2FB}
.article-body a{color:var(--c-primary);border-bottom:1px solid rgba(47,224,200,.35)}
.article-body a:hover{color:var(--c-primary-hover);border-bottom-color:var(--c-primary-hover)}
.article-body strong{color:#fff;font-weight:600}
.article-body ul,.article-body ol{margin:16px 0;padding-left:4px}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin:9px 0;color:#C9D6E6}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:linear-gradient(135deg,#2FE0C8,#7A5CFF);
}
.article-body ol{counter-reset:item}
.article-body ol li{counter-increment:item}
.article-body ol li::before{
  content:counter(item);position:absolute;left:0;top:.28em;
  font-family:"JetBrains Mono",ui-monospace,monospace;font-size:12px;font-weight:700;color:var(--c-primary);
}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-left:3px solid var(--c-primary);border-radius:0 var(--radius-inner) var(--radius-inner) 0;
  background:var(--glass);border-top:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  color:#DCE6F3;font-size:15.5px;
}
.article-body blockquote p{margin:0;color:#DCE6F3}
.article-body img{
  border-radius:var(--radius-pic);margin:26px auto;
  border:1px solid var(--line);background:linear-gradient(135deg,rgba(47,224,200,.14),rgba(122,92,255,.14));
}
.article-body figure{margin:26px 0}
.article-body figcaption{
  margin-top:10px;text-align:center;font-size:13px;color:var(--text-mute);
}
.article-body .table-scroll, .article-body .wp-block-table{overflow-x:auto;margin:26px 0;border-radius:var(--radius-inner);border:1px solid var(--line)}
.article-body table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:520px}
.article-body th{
  background:rgba(47,224,200,.10);color:#EAF2FB;font-weight:600;text-align:left;
  padding:13px 16px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.article-body td{padding:12px 16px;border-bottom:1px solid rgba(255,255,255,.06);color:#C9D6E6}
.article-body tr:nth-child(even) td{background:rgba(255,255,255,.03)}
.article-body pre{
  margin:24px 0;padding:18px 20px;overflow-x:auto;
  background:#0A101C;border:1px solid var(--line);border-radius:var(--radius-inner);
  font-family:"JetBrains Mono",ui-monospace,SFMono-Regular,Consolas,monospace;
  font-size:13.5px;line-height:1.75;color:#B9E9DF;
}
.article-body code{
  font-family:"JetBrains Mono",ui-monospace,SFMono-Regular,Consolas,monospace;
  font-size:13.5px;color:#8FF0DF;background:rgba(47,224,200,.10);
  padding:2px 6px;border-radius:6px;
}
.article-body pre code{background:none;padding:0;color:inherit}
.article-body hr{border:0;height:1px;margin:34px 0;background:linear-gradient(90deg,rgba(47,224,200,.34),rgba(255,255,255,.04))}

/* ---------- 无文章空态 ---------- */
.empty-state{
  padding:44px 28px;text-align:center;
  border:1px dashed rgba(255,255,255,.18);border-radius:var(--radius-card);
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.empty-state .empty-title{font-size:19px;font-weight:700;color:#fff}
.empty-state p{margin-top:10px;color:var(--text-weak);font-size:14.5px}
.empty-state .btn{margin-top:22px}

/* ---------- 标签 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:999px;font-size:13px;
  color:var(--text-weak);background:var(--glass);border:1px solid var(--line);
  transition:color var(--dur) ease,border-color var(--dur) ease,background var(--dur) ease,transform var(--dur) ease;
}
.chip:hover{color:#fff;border-color:rgba(47,224,200,.45);background:rgba(47,224,200,.10);transform:translateY(-2px)}

/* ---------- 翻页卡 ---------- */
.pager-grid{display:grid;grid-template-columns:1fr;gap:16px;margin-top:40px}
@media (min-width:640px){.pager-grid{grid-template-columns:1fr 1fr}}
.pager-card{
  display:block;padding:22px;border-radius:var(--radius-card);
  border:1px solid var(--line);background:var(--panel);
  transition:transform var(--dur) ease,border-color var(--dur) ease,box-shadow var(--dur) ease;
}
.pager-card:hover{transform:translateY(-4px);border-color:rgba(47,224,200,.45);box-shadow:var(--shadow-panel)}
.pager-card .pc-label{font-size:12px;color:var(--text-mute);letter-spacing:.04em}
.pager-card .pc-title{margin-top:10px;font-size:16px;font-weight:600;color:var(--text-weak);line-height:1.6}
.pager-card.bright{
  background:linear-gradient(135deg,rgba(47,224,200,.14),rgba(122,92,255,.14));
  border-color:rgba(47,224,200,.38);
}
.pager-card.bright .pc-label{color:#9CEBDE}
.pager-card.bright .pc-title{color:#fff}

/* ---------- 相关推荐 ---------- */
.section-title{font-size:clamp(20px,2.4vw,24px);font-weight:700;color:#fff;line-height:1.4}
.section-sub{margin-top:8px;font-size:14px;color:var(--text-mute)}
.related-grid{display:grid;grid-template-columns:1fr;gap:22px;margin-top:24px}
@media (min-width:640px){.related-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.related-grid{grid-template-columns:repeat(3,1fr)}}
.cover-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  border-radius:var(--radius-card);border:1px solid var(--line);background:var(--panel);
  transition:transform var(--dur) ease,border-color var(--dur) ease,box-shadow var(--dur) ease;
}
.cover-card:hover{transform:translateY(-4px);border-color:rgba(47,224,200,.45);box-shadow:var(--shadow-panel)}
.cover-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,rgba(47,224,200,.16),rgba(122,92,255,.16))}
.cover-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease}
.cover-card:hover .cover-media img{transform:scale(1.03)}
.cover-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.cover-body h3{font-size:16.5px;font-weight:600;color:#fff;line-height:1.55}
.cover-body p{font-size:14px;color:var(--text-weak);line-height:1.8}
.cover-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:6px;font-size:12.5px;color:var(--text-mute)}

/* ---------- 返回入口 ---------- */
.back-entries{display:flex;flex-wrap:wrap;gap:14px;margin-top:40px}
.back-entries .btn{flex:1 1 200px}

/* ---------- 侧栏 ---------- */
.sidebar{display:none}
@media (min-width:1024px){.sidebar{display:block}}
.side-card{
  position:sticky;top:96px;
  padding:22px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.side-card + .side-card{position:static;margin-top:20px}
.side-title{font-size:14px;font-weight:700;color:#fff;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:4px;height:15px;border-radius:2px;background:linear-gradient(180deg,#2FE0C8,#7A5CFF)}
.toc-list{margin-top:14px;display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;padding:8px 10px;border-radius:10px;font-size:13.5px;color:var(--text-weak);
  line-height:1.6;border-left:2px solid transparent;
  transition:color var(--dur) ease,background var(--dur) ease,border-color var(--dur) ease;
}
.toc-list a:hover{color:#fff;background:rgba(255,255,255,.05)}
.toc-list a.active{color:var(--c-primary);background:rgba(47,224,200,.10);border-left-color:var(--c-primary)}
.toc-empty{font-size:13px;color:var(--text-mute);margin-top:12px;line-height:1.8}
.hot-list{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.hot-list a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-inner);
  font-size:13.5px;color:var(--text-weak);background:rgba(255,255,255,.03);border:1px solid transparent;
  transition:color var(--dur) ease,border-color var(--dur) ease,background var(--dur) ease;
}
.hot-list a:hover{color:#fff;border-color:rgba(47,224,200,.42);background:rgba(47,224,200,.10)}
.hot-list .idx{font-family:"JetBrains Mono",ui-monospace,monospace;font-size:12px;color:var(--c-accent)}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;margin-top:88px;overflow:hidden;
  border-top:1px solid var(--line);background:#0A101C;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,224,200,.65),transparent);
}
.footer-glow{
  position:absolute;top:-140px;left:50%;transform:translateX(-50%);
  width:660px;height:260px;pointer-events:none;
  background:radial-gradient(closest-side,rgba(47,224,200,.16),transparent);
  filter:blur(18px);
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:4px;padding:52px 0 20px;position:relative;z-index:2}
@media (min-width:768px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding:64px 0 28px}
}
.footer-brand{font-size:17px;font-weight:700;color:#fff}
.footer-desc{margin-top:12px;font-size:13.5px;line-height:1.85;color:var(--text-mute);max-width:320px}
.footer-col h4{font-size:14px;font-weight:600;color:#EAF2FB}
.footer-toggle{
  display:flex;width:100%;align-items:center;justify-content:space-between;gap:10px;
  padding:16px 0;background:none;border:0;cursor:pointer;text-align:left;
}
.footer-toggle .plus{color:var(--c-primary);font-weight:700;font-size:16px;line-height:1}
.footer-body{display:none;padding-bottom:12px}
.footer-col.open .footer-body{display:block}
.footer-col.open .footer-toggle .plus::before{content:"−"}
.footer-col.open .footer-toggle .plus{font-size:0}
.footer-col.open .footer-toggle .plus::before{font-size:16px}
.footer-body ul{display:flex;flex-direction:column;gap:2px}
.footer-body li a{
  display:inline-block;padding:6px 0;font-size:13.5px;color:var(--text-mute);
  transition:color var(--dur) ease,transform var(--dur) ease;
}
.footer-body li a:hover{color:var(--c-primary);transform:translateX(3px)}
.footer-contact li{font-size:13.5px;color:var(--text-mute);padding:6px 0}
@media (min-width:768px){
  .footer-toggle{padding:0 0 6px;pointer-events:none;cursor:default}
  .footer-toggle .plus{display:none}
  .footer-body{display:block !important;padding-bottom:0}
  .footer-body li a{padding:5px 0}
  .footer-contact li{padding:5px 0}
}
.footer-bottom{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;gap:10px 20px;align-items:center;justify-content:space-between;
  padding:18px 0 26px;border-top:1px solid var(--line);
  font-size:12.5px;color:#6F8098;
}
.footer-bottom a{color:var(--text-mute);transition:color var(--dur) ease}
.footer-bottom a:hover{color:var(--c-primary)}

/* ---------- 移动端底部 Tab ---------- */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;align-items:stretch;height:64px;
  background:rgba(9,14,24,.92);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.tab-item{
  position:relative;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:10.5px;color:var(--text-mute);
  transition:color var(--dur) ease,transform var(--dur) ease;
}
.tab-item svg{width:23px;height:23px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.tab-item:hover{color:var(--text-weak)}
.tab-item:active{transform:scale(.96)}
.tab-item.active{color:var(--c-primary);transform:translateY(-2px)}
.tab-item.active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:2px;border-radius:2px;background:var(--c-primary);
  box-shadow:0 0 10px rgba(47,224,200,.9);
}
@media (min-width:1024px){.mobile-tab{display:none}}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .cover-card:hover,.pager-card:hover,.btn:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --c-primary:#2FE0C8;
  --c-primary-hover:#7BF2E0;
  --c-secondary:#7A5CFF;
  --c-accent:#FFB241;
  --c-ok:#4ADE80;
  --c-warn:#FF6B6B;
  --bg-base:#070B14;
  --panel:#0E1524;
  --panel-2:#101a2c;
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.09);
  --line-soft:rgba(255,255,255,.06);
  --text:#EAF0F7;
  --text-mid:#B7C3D4;
  --text-mute:#8D9BB0;
  --text-dim:#66748A;
  --radius-card:20px;
  --radius-inner:14px;
  --radius-pic:16px;
  --radius-btn:12px;
  --shadow-soft:0 18px 40px rgba(0,0,0,.35);
  --shadow-glow:0 8px 28px rgba(47,224,200,.28);
  --header-h:72px;
  --font-cn:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0 0 0 0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background-color:var(--bg-base);
  background-image:
    radial-gradient(760px 420px at 22% -6%, rgba(47,224,200,.10), transparent 62%),
    radial-gradient(680px 420px at 88% 22%, rgba(122,92,255,.08), transparent 64%),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/></filter><rect width='140' height='140' filter='url(/%23n)' opacity='0.035'/></svg>");
  background-repeat:no-repeat,no-repeat,repeat;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .25s ease,border-color .25s ease,background-color .25s ease,transform .25s ease;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:0;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(47,224,200,.28);}

::-webkit-scrollbar{width:9px;height:9px;}
::-webkit-scrollbar-track{background:#080d18;}
::-webkit-scrollbar-thumb{background:rgba(47,224,200,.24);border-radius:99px;}
::-webkit-scrollbar-thumb:hover{background:rgba(47,224,200,.42);}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}

.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06), var(--shadow-soft);
}
.solid-panel{background:var(--panel);border:1px solid var(--line-soft);box-shadow:var(--shadow-soft);}
.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:92px 0;}}
.section-line{height:1px;background:linear-gradient(90deg,transparent,rgba(47,224,200,.32),transparent);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  height:var(--header-h);
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.scrolled{
  background:rgba(9,13,22,.74);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  max-width:1200px;height:var(--header-h);margin:0 auto;padding:0 20px;
  display:flex;align-items:center;gap:18px;
}
@media (min-width:1024px){.nav-wrap{padding:0 32px;gap:26px;}}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;color:#04121a;
  background:linear-gradient(135deg,var(--c-primary),var(--c-secondary));
  box-shadow:0 6px 18px rgba(47,224,200,.28);
}
.brand-text{font-size:16.5px;font-weight:700;color:#fff;white-space:nowrap;}
.brand-text .num{
  background:linear-gradient(120deg,#2FE0C8,#7A5CFF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.nav-links{display:none;align-items:center;gap:6px;margin-left:8px;}
@media (min-width:1024px){.nav-links{display:flex;}}
.nav-link{
  position:relative;padding:8px 12px;border-radius:10px;
  font-size:14.5px;color:var(--text-mid);white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05);}
.nav-link.active{color:var(--c-primary);}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;
  background:var(--c-primary);box-shadow:0 0 12px rgba(47,224,200,.9);
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px;}
.nav-contact{display:none;font-size:14px;color:var(--text-mute);}
.nav-contact:hover{color:var(--c-primary);}
@media (min-width:768px){.nav-contact{display:inline-block;}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;white-space:nowrap;
  transition:transform .25s ease,box-shadow .25s ease,background-color .25s ease,border-color .25s ease,opacity .25s ease,filter .25s ease;
}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px;}
.btn-primary{
  color:#04121a;
  background:linear-gradient(135deg,#2FE0C8 0%,#7A5CFF 135%);
  box-shadow:0 0 0 1px rgba(47,224,200,.5), var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(47,224,200,.6), 0 12px 40px rgba(47,224,200,.34);}
.btn-primary:active{transform:scale(.98);}
.btn-primary[disabled],.btn-primary.is-disabled{opacity:.4;box-shadow:none;filter:none;transform:none;cursor:not-allowed;}
.btn-ghost{
  color:var(--text);background:transparent;border:1px solid var(--line);
}
.btn-ghost:hover{border-color:var(--c-primary);background:rgba(47,224,200,.10);color:#fff;}
.btn-ghost:active{transform:scale(.98);}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--c-primary);
}
.btn-link span{transition:transform .25s ease;}
.btn-link:hover span{transform:translateX(4px);}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-dim);padding:20px 0 0;
}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:rgba(255,255,255,.2);}
.breadcrumb .current{color:var(--text-mid);}

/* ============ 矮版 Hero ============ */
.hero-cat{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line-soft);
  background-image:
    linear-gradient(90deg, rgba(7,11,20,.96) 0%, rgba(7,11,20,.82) 48%, rgba(7,11,20,.70) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
}
.hero-cat::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 260px at 12% 10%, rgba(47,224,200,.16), transparent 70%);
}
.hero-inner{position:relative;z-index:2;padding:36px 0 52px;}
@media (min-width:1024px){.hero-inner{padding:52px 0 76px;}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:12.5px;
  color:var(--c-primary);background:rgba(47,224,200,.09);
  border:1px solid rgba(47,224,200,.28);
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 10px rgba(47,224,200,.9);}
.hero-cat h1{
  margin:18px 0 0;
  font-size:clamp(28px,4.2vw,44px);line-height:1.18;font-weight:700;color:#fff;
  max-width:860px;
}
.hero-cat .hero-sub{
  margin-top:16px;max-width:720px;
  font-size:15.5px;line-height:1.9;color:var(--text-mid);
}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:22px 42px;margin-top:30px;
}
.fact-num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:26px;font-weight:700;color:#fff;}
.fact-num em{font-style:normal;font-size:14px;color:var(--c-primary);margin-left:3px;}
.fact-label{font-size:12.5px;color:var(--text-dim);margin-top:2px;}

/* ============ 板块标题 ============ */
.section-head{max-width:760px;margin-bottom:34px;}
.section-head h2{font-size:clamp(22px,2.9vw,32px);color:#fff;}
.section-head p{margin-top:12px;color:var(--text-mute);font-size:15px;}
.section-head .kicker{
  font-family:var(--font-mono);font-size:12.5px;color:var(--c-primary);
  letter-spacing:.04em;margin-bottom:10px;display:block;
}

/* ============ 能力卡 ============ */
.ability-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:640px){.ability-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.ability-grid{grid-template-columns:repeat(4,1fr);gap:24px;}}
.ability-card{
  padding:24px 22px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .3s ease,border-color .3s ease,background-color .3s ease;
}
.ability-card:hover{transform:translateY(-4px);border-color:rgba(47,224,200,.45);background:var(--glass-strong);}
.icon-box{
  width:44px;height:44px;border-radius:var(--radius-inner);
  display:flex;align-items:center;justify-content:center;
  background:rgba(47,224,200,.10);border:1px solid rgba(47,224,200,.24);
  color:var(--c-primary);
}
.ability-card h3{margin-top:18px;font-size:18px;color:#fff;}
.ability-card p{margin-top:10px;font-size:14.5px;color:var(--text-mute);line-height:1.85;}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.chip{
  font-size:12.5px;padding:4px 10px;border-radius:999px;
  color:var(--text-mid);background:rgba(255,255,255,.05);border:1px solid var(--line-soft);
}
.chip.violet{color:#C9BEFF;background:rgba(122,92,255,.12);border-color:rgba(122,92,255,.3);}
.chip.amber{color:#FFD79A;background:rgba(255,178,65,.12);border-color:rgba(255,178,65,.3);}

/* ============ 主区：筛选 + 卡片网格 ============ */
.case-layout{display:grid;grid-template-columns:1fr;gap:26px;}
@media (min-width:1024px){.case-layout{grid-template-columns:268px 1fr;gap:32px;}}
.filter-panel{
  padding:22px 20px;border-radius:var(--radius-card);
  background:var(--panel);border:1px solid var(--line-soft);
  box-shadow:var(--shadow-soft);
  align-self:start;
}
@media (min-width:1024px){.filter-panel{position:sticky;top:calc(var(--header-h) + 20px);}}
.filter-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:6px;}
.filter-group{padding-top:16px;margin-top:16px;border-top:1px solid var(--line-soft);}
.filter-group:first-of-type{border-top:0;margin-top:0;padding-top:10px;}
.filter-group h4{font-size:13px;color:var(--text-dim);font-weight:600;margin-bottom:10px;}
.check{
  display:flex;align-items:center;gap:10px;
  padding:7px 8px;border-radius:10px;font-size:14px;color:var(--text-mid);
  transition:background-color .25s ease,color .25s ease;
}
.check:hover{background:rgba(47,224,200,.08);color:#fff;}
.check .box{
  width:16px;height:16px;border-radius:5px;flex:0 0 auto;
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.03);
  position:relative;transition:border-color .25s ease,background-color .25s ease;
}
.check:hover .box{border-color:var(--c-primary);}
.check.on .box{background:linear-gradient(135deg,#2FE0C8,#7A5CFF);border-color:transparent;}
.check.on .box::after{
  content:"";position:absolute;left:4px;top:1px;width:5px;height:9px;
  border:2px solid #04121a;border-top:0;border-left:0;transform:rotate(42deg);
}
.check.on{color:#fff;}
.filter-note{margin-top:18px;font-size:12.5px;color:var(--text-dim);line-height:1.7;}

.post-grid{display:grid;grid-template-columns:1fr;gap:22px;}
@media (min-width:640px){.post-grid{grid-template-columns:repeat(2,1fr);}}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .3s ease,border-color .3s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(47,224,200,.45);}
.thumb{
  position:relative;width:100%;aspect-ratio:16/10;overflow:hidden;
  background:linear-gradient(135deg,rgba(47,224,200,.16),rgba(122,92,255,.16));
}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.post-card:hover .thumb img{transform:scale(1.03);}
.thumb.img-fallback{background:linear-gradient(135deg,rgba(47,224,200,.2),rgba(122,92,255,.2));border-bottom:1px solid rgba(47,224,200,.28);}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-body h3{font-size:17px;color:#fff;line-height:1.5;}
.post-card:hover .post-body h3{color:var(--c-primary-hover);}
.post-body p{font-size:14px;color:var(--text-mute);line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding-top:12px;border-top:1px solid var(--line-soft);
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;font-size:12.5px;
  color:var(--c-primary);background:rgba(47,224,200,.10);border:1px solid rgba(47,224,200,.26);
}
.badge.violet{color:#C9BEFF;background:rgba(122,92,255,.12);border-color:rgba(122,92,255,.3);}
.badge.amber{color:#FFD79A;background:rgba(255,178,65,.12);border-color:rgba(255,178,65,.3);}
.time{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:12.5px;color:var(--text-dim);}

/* ============ 流程步骤 ============ */
.steps{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:640px){.steps{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);gap:24px;}}
.step{
  position:relative;padding:24px 22px;border-radius:var(--radius-card);
  background:var(--panel);border:1px solid var(--line-soft);
  transition:transform .3s ease,border-color .3s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(47,224,200,.4);}
.step-no{
  font-family:var(--font-mono);font-size:13px;color:var(--c-primary);
  padding:3px 10px;border-radius:999px;border:1px solid rgba(47,224,200,.3);
  background:rgba(47,224,200,.08);display:inline-block;
}
.step h3{margin-top:16px;font-size:17px;color:#fff;}
.step p{margin-top:10px;font-size:14.5px;color:var(--text-mute);line-height:1.85;}
.step::after{
  content:"";position:absolute;left:22px;right:22px;bottom:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,rgba(47,224,200,.7),rgba(122,92,255,.2));
  opacity:.5;transition:opacity .3s ease;
}
.step:hover::after{opacity:1;}

/* ============ 适用场景 ============ */
.scene-grid{display:grid;grid-template-columns:1fr;gap:22px;}
@media (min-width:1024px){.scene-grid{grid-template-columns:repeat(3,1fr);gap:26px;}}
.scene-card{
  padding:26px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .3s ease,border-color .3s ease;
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(47,224,200,.45);}
.scene-card h3{font-size:18px;color:#fff;}
.scene-card p{margin-top:12px;font-size:14.5px;color:var(--text-mute);line-height:1.85;}
.scene-card ul{margin-top:16px;display:grid;gap:8px;}
.scene-card li{position:relative;padding-left:16px;font-size:14px;color:var(--text-mid);}
.scene-card li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:2px;
  background:var(--c-primary);
}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;}
.faq-item{
  border-radius:var(--radius-inner);border:1px solid var(--line-soft);
  background:var(--glass);margin-bottom:12px;overflow:hidden;
  transition:background-color .3s ease,border-color .3s ease;
}
.faq-item.open{background:var(--glass-strong);border-color:rgba(47,224,200,.35);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  padding:18px 20px;font-size:15.5px;font-weight:600;color:#fff;
  min-height:60px;
}
.faq-q:hover{color:var(--c-primary-hover);}
.faq-q .idx{font-family:var(--font-mono);font-size:13px;color:var(--c-primary);flex:0 0 auto;}
.faq-q .txt{flex:1;}
.faq-q .sign{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-mid);font-size:15px;line-height:1;
  transition:transform .3s ease,border-color .3s ease,color .3s ease;
}
.faq-item.open .faq-q .sign{transform:rotate(45deg);border-color:var(--c-primary);color:var(--c-primary);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .35s ease;
  border-left:3px solid transparent;
}
.faq-item.open .faq-a{border-left:3px solid var(--c-primary);}
.faq-a p{padding:0 20px 20px 20px;font-size:14.5px;color:var(--text-mute);line-height:1.9;}

/* ============ CTA 条 ============ */
.cta-bar{
  position:relative;overflow:hidden;
  border-radius:var(--radius-card);
  padding:32px 26px;
  background:
    radial-gradient(420px 220px at 10% 0%, rgba(47,224,200,.16), transparent 70%),
    radial-gradient(380px 220px at 92% 100%, rgba(122,92,255,.16), transparent 70%),
    var(--panel-2);
  border:1px solid rgba(47,224,200,.25);
  box-shadow:var(--shadow-soft);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
}
@media (min-width:1024px){.cta-bar{padding:40px 44px;}}
.cta-bar h2{font-size:clamp(20px,2.4vw,28px);color:#fff;}
.cta-bar p{margin-top:8px;font-size:14.5px;color:var(--text-mute);}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;margin-top:56px;
  border-top:1px solid var(--line-soft);
  background:linear-gradient(180deg,rgba(10,15,26,.5),rgba(7,11,20,.95));
  padding:46px 0 22px;
}
.footer-glow{
  position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,224,200,.6),transparent);
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:6px;}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;}}
.footer-brand{font-size:17px;font-weight:700;color:#fff;}
.footer-desc{margin-top:12px;font-size:13.5px;color:var(--text-dim);line-height:1.85;max-width:340px;}
.footer-col{border-bottom:1px solid var(--line-soft);padding:14px 0;}
@media (min-width:1024px){.footer-col{border-bottom:0;padding:0;}}
.footer-toggle{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:15px;font-weight:600;color:#fff;padding:4px 0;text-align:left;
}
.footer-toggle .plus{color:var(--c-primary);font-size:17px;transition:transform .3s ease;}
.footer-col.open .footer-toggle .plus{transform:rotate(45deg);}
.footer-body{display:none;padding-top:12px;}
.footer-col.open .footer-body{display:block;}
@media (min-width:1024px){.footer-body{display:block !important;padding-top:14px;}.footer-toggle .plus{display:none;}}
.footer-body ul{display:grid;gap:9px;}
.footer-body a{font-size:14px;color:var(--text-mute);}
.footer-body a:hover{color:var(--c-primary);}
.footer-contact li{font-size:13.5px;color:var(--text-dim);}
.footer-bottom{
  margin-top:26px;padding-top:18px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--text-dim);
}
.footer-bottom a{color:var(--text-mute);}
.footer-bottom a:hover{color:var(--c-primary);}

/* ============ 移动端底部 Tab ============ */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  display:flex;align-items:stretch;justify-content:space-around;
  height:calc(64px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(9,13,22,.9);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
}
@media (min-width:1024px){.mobile-tab{display:none;}}
.tab-item{
  position:relative;flex:1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:10.5px;color:var(--text-dim);
  transition:color .25s ease,transform .25s ease;
}
.tab-item svg{width:22px;height:22px;stroke-width:1.6;}
.tab-item:hover{color:var(--text-mid);}
.tab-item.active{color:var(--c-primary);transform:translateY(-2px);}
.tab-item.active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:30px;height:2px;border-radius:2px;background:var(--c-primary);
  box-shadow:0 0 12px rgba(47,224,200,.9);
}
@media (max-width:1023px){body{padding-bottom:84px;}}

/* ============ 动效降级 ============ */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --c-primary:#2FE0C8;
  --c-primary-hover:#7BF2E0;
  --c-secondary:#7A5CFF;
  --c-accent:#FFB241;
  --c-success:#4ADE80;
  --c-warn:#FF6B6B;
  --bg-base:#070B14;
  --panel:#0E1524;
  --line:rgba(255,255,255,.09);
  --line-soft:rgba(255,255,255,.05);
  --radius-card:20px;
  --radius-inner:14px;
  --radius-pic:16px;
  --radius-btn:12px;
  --shadow-card:0 0 0 1px rgba(255,255,255,.06), 0 18px 40px rgba(0,0,0,.35);
  --shadow-glow:0 0 0 1px rgba(47,224,200,.5), 0 8px 28px rgba(47,224,200,.28);
  --text:#EAF2F6;
  --text-weak:#93A4B8;
  --text-dim:#6C7C90;
  --font-sans:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  overflow-x:hidden;
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(720px 420px at 16% -6%,rgba(47,224,200,.10),transparent 62%),
    radial-gradient(680px 480px at 84% 20%,rgba(122,92,255,.08),transparent 66%);
}
body::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.5;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(/%23n)' opacity='0.045'/%3E%3C/svg%3E");
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}
::selection{background:rgba(47,224,200,.3)}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;transition:background .3s ease,backdrop-filter .3s ease}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:transparent;transition:background .3s ease}
.site-header.is-scrolled{background:rgba(7,11,20,.74);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.site-header.is-scrolled::after{background:var(--line)}
.nav-wrap{max-width:1200px;margin:0 auto;height:72px;padding:0 20px;display:flex;align-items:center;gap:16px}
@media (min-width:1024px){.nav-wrap{padding:0 32px;gap:20px}}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:36px;height:36px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px;color:#04121A;background:linear-gradient(135deg,#2FE0C8,#7A5CFF);box-shadow:0 0 0 1px rgba(47,224,200,.45),0 8px 22px rgba(47,224,200,.22)}
.brand-text{font-weight:700;font-size:17px;white-space:nowrap}
.brand-text .num{background:linear-gradient(120deg,#2FE0C8,#7A5CFF);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:none;align-items:center;gap:4px;margin-left:auto}
@media (min-width:1024px){.nav-links{display:flex}}
.nav-link{position:relative;padding:9px 13px;font-size:14.5px;color:var(--text-weak);border-radius:10px;transition:color .2s,background .2s}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--c-primary);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;border-radius:2px;background:var(--c-primary);box-shadow:0 0 12px rgba(47,224,200,.85)}
.nav-right{display:none;align-items:center;gap:14px;margin-left:6px}
@media (min-width:1024px){.nav-right{display:flex}}
.nav-contact{font-size:14px;color:var(--text-weak);transition:color .2s}
.nav-contact:hover{color:var(--c-primary)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-btn);font-weight:600;font-size:15px;padding:12px 22px;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:transform .2s ease,box-shadow .25s ease,background .2s ease,border-color .2s ease,filter .2s ease}
.btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.btn-primary{color:#04121A;background:linear-gradient(135deg,#2FE0C8,#7A5CFF);box-shadow:var(--shadow-glow)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(47,224,200,.6),0 14px 40px rgba(47,224,200,.4)}
.btn-primary:active{transform:scale(.98)}
.btn-primary:disabled{opacity:.4;box-shadow:none;cursor:not-allowed;transform:none;filter:none}
.btn-ghost{color:var(--text);background:transparent;border-color:var(--line)}
.btn-ghost:hover{background:rgba(47,224,200,.10);border-color:var(--c-primary);color:#fff}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-size:14px;font-weight:600}
.link-arrow::after{content:"→";transition:transform .22s ease}
.link-arrow:hover::after{transform:translateX(4px)}

/* ---------- 移动端底部 Tab ---------- */
.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:70;display:flex;align-items:stretch;background:rgba(9,13,22,.94);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}
@media (min-width:1024px){.tabbar{display:none}}
.tab-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;height:64px;font-size:11px;color:var(--text-dim);position:relative;transition:color .2s,transform .2s}
.tab-item svg{width:22px;height:22px}
.tab-item.active{color:var(--c-primary)}
.tab-item.active::before{content:"";position:absolute;top:0;left:24%;right:24%;height:2px;border-radius:2px;background:var(--c-primary);box-shadow:0 0 10px rgba(47,224,200,.8)}
.tab-item:active{transform:translateY(-1px)}
@media (max-width:1023px){body{padding-bottom:84px}}

/* ---------- 通用区块 ---------- */
.section{padding:56px 0;position:relative}
@media (min-width:1024px){.section{padding:96px 0}}
.divider{height:1px;background:linear-gradient(90deg,transparent,rgba(47,224,200,.35),rgba(122,92,255,.25),transparent)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--c-primary);border:1px solid rgba(47,224,200,.3);background:rgba(47,224,200,.08);padding:5px 12px;border-radius:999px}
.h1{font-size:clamp(30px,4.6vw,50px);line-height:1.15;font-weight:700}
.h2{font-size:clamp(23px,3vw,34px);line-height:1.25;font-weight:700}
.h3{font-size:20px;line-height:1.4;font-weight:600}
.sub{color:var(--text-weak);font-size:16px;line-height:1.9}
.sec-head{max-width:760px;margin-bottom:34px}
.sec-head h2{margin:14px 0 10px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-dim);padding-top:20px}
.breadcrumb a{transition:color .2s}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:rgba(255,255,255,.22)}
.breadcrumb [aria-current]{color:var(--text-weak)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:10px 0 56px}
@media (min-width:1024px){.hero{padding:18px 0 88px}}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;z-index:0}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(7,11,20,.97) 0%,rgba(7,11,20,.86) 45%,rgba(7,11,20,.72) 100%)}
.hero-inner{position:relative;z-index:1}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

/* ---------- 横向分类 Tab 条 ---------- */
.cat-tabs{display:flex;gap:26px;overflow-x:auto;border-bottom:1px solid var(--line);margin-bottom:32px;scrollbar-width:none}
.cat-tabs::-webkit-scrollbar{display:none}
.cat-tab{position:relative;padding:10px 2px 13px;font-size:14.5px;color:var(--text-weak);white-space:nowrap;transition:color .2s}
.cat-tab:hover{color:#fff}
.cat-tab.active{color:var(--c-primary);font-weight:600}
.cat-tab.active::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;border-radius:2px;background:var(--c-primary);box-shadow:0 0 12px rgba(47,224,200,.9)}

/* ---------- 统计小卡 ---------- */
.stat-row{display:grid;grid-template-columns:1fr;gap:16px;margin-top:38px}
@media (min-width:640px){.stat-row{grid-template-columns:repeat(3,1fr)}}
.stat-card{border:1px solid var(--line);background:rgba(255,255,255,.045);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-radius:var(--radius-card);padding:22px;box-shadow:inset 0 1px 0 rgba(255,255,255,.06);transition:transform .25s ease,border-color .25s ease}
.stat-card:hover{transform:translateY(-4px);border-color:rgba(47,224,200,.45)}
.stat-num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:clamp(28px,4vw,40px);font-weight:700;line-height:1.2;background:linear-gradient(120deg,#2FE0C8,#7A5CFF);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-num small{font-size:.44em;margin-left:4px;color:var(--text-weak);-webkit-text-fill-color:var(--text-weak)}
.stat-label{font-size:12.5px;color:var(--text-weak);margin-top:8px;line-height:1.75}

/* ---------- 规格表 ---------- */
.table-wrap{overflow-x:auto;border-radius:var(--radius-card);border:1px solid var(--line);background:var(--panel)}
table.spec{width:100%;min-width:780px;border-collapse:collapse}
.spec thead th{background:rgba(255,255,255,.045);backdrop-filter:blur(14px);text-align:left;font-size:13px;font-weight:600;color:var(--text-weak);padding:16px 18px;border-bottom:1px solid var(--line);white-space:nowrap}
.spec td{padding:16px 18px;font-size:14.5px;color:var(--text-weak);border-bottom:1px solid var(--line-soft);vertical-align:top}
.spec tbody tr{transition:background .2s ease}
.spec tbody tr:hover{background:rgba(47,224,200,.06)}
.spec tbody tr:last-child td{border-bottom:0}
.spec .tier{color:#fff;font-weight:600}
.spec .num-col{text-align:right;font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:#EAF2F6;white-space:nowrap}
.spec-card{border:1px solid var(--line);border-radius:18px;background:var(--panel);padding:18px;transition:border-color .25s ease}
.spec-card:hover{border-color:rgba(47,224,200,.45)}
.spec-card h3{font-size:16px;font-weight:600;color:#fff;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.kv{display:flex;justify-content:space-between;gap:14px;padding:9px 0;font-size:14px;border-bottom:1px dashed rgba(255,255,255,.08)}
.kv:last-child{border-bottom:0}
.kv span:first-child{color:var(--text-dim)}
.kv b{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:600;color:#EAF2F6;text-align:right}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:30px}
.timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;border-radius:2px;background:linear-gradient(180deg,rgba(47,224,200,.9),rgba(122,92,255,.25))}
.tl-item{position:relative;margin-bottom:18px}
.tl-item:last-child{margin-bottom:0}
.tl-item::before{content:"";position:absolute;left:-30px;top:24px;width:14px;height:14px;border-radius:50%;background:var(--panel);border:2px solid var(--c-primary);box-shadow:0 0 12px rgba(47,224,200,.5)}
.tl-card{border:1px solid var(--line);background:rgba(255,255,255,.045);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-radius:18px;padding:20px;box-shadow:inset 0 1px 0 rgba(255,255,255,.05);transition:transform .25s ease,border-color .25s ease}
.tl-card:hover{transform:translateY(-4px);border-color:rgba(47,224,200,.45)}
.tl-step{font-family:var(--font-mono);font-size:12.5px;color:var(--c-primary);letter-spacing:.04em}
.tl-card h3{font-size:17px;font-weight:600;margin:6px 0 6px}
.tl-card p{font-size:14.5px;color:var(--text-weak)}

/* ---------- 大图卡网格 ---------- */
.media-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media (min-width:640px){.media-grid{grid-template-columns:repeat(2,1fr)}}
.media-card{border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--panel);transition:transform .28s ease,border-color .28s ease}
.media-card:hover{transform:translateY(-4px);border-color:rgba(47,224,200,.45)}
.media-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,rgba(47,224,200,.18),rgba(122,92,255,.2));border-bottom:1px solid var(--line-soft)}
.media-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.media-card:hover .media-thumb img{transform:scale(1.03)}
.media-body{padding:20px}
.media-body h3{font-size:17px;font-weight:600;margin-bottom:8px}
.media-body p{font-size:14.5px;color:var(--text-weak)}
.tag{display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;font-size:12px;border:1px solid rgba(255,255,255,.12);color:var(--text-weak);background:rgba(255,255,255,.04)}
.tag-primary{color:var(--c-primary);border-color:rgba(47,224,200,.35);background:rgba(47,224,200,.09)}
.tag-accent{color:var(--c-accent);border-color:rgba(255,178,65,.35);background:rgba(255,178,65,.08)}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto;display:grid;gap:12px}
.faq-item{border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.03);overflow:hidden;transition:background .25s ease,border-color .25s ease,box-shadow .25s ease}
.faq-item.open{background:rgba(255,255,255,.06);border-color:rgba(47,224,200,.35);box-shadow:inset 3px 0 0 var(--c-primary)}
.faq-q{width:100%;display:flex;align-items:center;gap:14px;min-height:60px;padding:16px 20px;background:none;border:0;text-align:left;cursor:pointer}
.faq-q .idx{font-family:var(--font-mono);font-size:13px;color:var(--c-primary)}
.faq-q .txt{flex:1;font-size:15.5px;font-weight:600;color:#fff;line-height:1.6}
.faq-q .ico{width:24px;height:24px;flex:0 0 24px;display:flex;align-items:center;justify-content:center;border-radius:50%;border:1px solid var(--line);color:var(--c-primary);font-size:16px;line-height:1;transition:transform .25s ease}
.faq-item.open .faq-q .ico{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-item.open .faq-a{max-height:340px}
.faq-a p{padding:0 20px 20px 54px;font-size:14.5px;color:var(--text-weak)}
.faq-q:focus-visible{outline:2px solid var(--c-primary);outline-offset:-2px}

/* ---------- 表单 / CTA ---------- */
.form-card{border:1px solid var(--line);background:rgba(255,255,255,.045);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-radius:var(--radius-card);padding:24px;box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}
@media (min-width:1024px){.form-card{padding:32px}}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:13px;color:var(--text-weak)}
.input,select,textarea{width:100%;padding:12px 14px;border-radius:var(--radius-btn);background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text);font-size:15px;transition:border-color .2s ease,box-shadow .2s ease}
.input::placeholder,textarea::placeholder{color:rgba(147,164,184,.62)}
.input:focus,select:focus,textarea:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(47,224,200,.16)}
select option{background:#0E1524;color:var(--text)}
.trust-list{display:grid;gap:10px;margin:0}
.trust-list li{font-size:14px;color:var(--text-weak);display:flex;align-items:center;gap:9px}
.trust-list li::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--c-primary);flex:0 0 6px}
.cta-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;border:1px solid rgba(47,224,200,.28);background:linear-gradient(120deg,rgba(47,224,200,.10),rgba(122,92,255,.12));border-radius:var(--radius-card);padding:22px 24px}
.form-success{display:none;align-items:center;gap:14px;border:1px solid rgba(74,222,128,.35);background:rgba(74,222,128,.08);border-radius:16px;padding:18px 20px}
.form-success.show{display:flex}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;margin-top:40px;padding:56px 0 26px;border-top:1px solid var(--line-soft)}
.footer-glow{position:absolute;top:-1px;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(47,224,200,.75),transparent)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:28px}}
.footer-brand{font-weight:700;font-size:17px;margin-bottom:10px}
.footer-desc{color:var(--text-weak);font-size:14px;line-height:1.8}
.footer-toggle{width:100%;display:flex;align-items:center;justify-content:space-between;background:none;border:0;padding:6px 0;cursor:pointer;font-family:inherit}
.footer-col h4{font-size:15px;color:#fff;font-weight:600}
.footer-toggle .plus{color:var(--c-primary);font-size:18px;line-height:1;transition:transform .25s ease}
.footer-body ul{display:grid;gap:9px;margin-top:12px}
.footer-body a{color:var(--text-weak);font-size:14px;transition:color .2s}
.footer-body a:hover{color:var(--c-primary)}
.footer-contact li{color:var(--text-weak);font-size:14px}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;margin-top:34px;padding-top:18px;border-top:1px solid var(--line-soft);font-size:13px;color:var(--text-dim)}
.footer-bottom a{color:var(--text-dim);text-decoration:underline}
.footer-bottom a:hover{color:var(--c-primary)}
@media (max-width:767px){
  .footer-body{max-height:0;overflow:hidden;transition:max-height .3s ease}
  .footer-col.open .footer-body{max-height:320px}
  .footer-col.open .footer-toggle .plus{transform:rotate(45deg)}
}
@media (min-width:768px){
  .footer-body{max-height:none!important;overflow:visible}
  .footer-toggle{pointer-events:none}
  .footer-toggle .plus{display:none}
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce){
  *{animation:none!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#080D18}
::-webkit-scrollbar-thumb{background:rgba(47,224,200,.28);border-radius:8px;border:2px solid #080D18}
::-webkit-scrollbar-thumb:hover{background:rgba(47,224,200,.45)}