/* roulang page: index */
:root{
  --bg-base:#070C18;
  --bg-elev-1:#0C1426;
  --bg-elev-2:#101A30;
  --aurora:#1FB6FF;
  --violet:#6C4BFF;
  --amber:#FFB020;
  --amber-ink:#1A1206;
  --ink:#E8EEF8;
  --ink-2:#A8B6CC;
  --ink-3:#6C7C96;
  --link:#7FD7FF;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --radius-card:20px;
  --radius-btn:12px;
  --radius-input:12px;
  --glow-blue:0 18px 40px -24px rgba(31,182,255,.45);
  --glow-amber:0 18px 44px -22px rgba(255,176,32,.5);
  --shadow-deep:0 24px 60px -34px rgba(0,0,0,.92);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background-color:var(--bg-base);
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:24px 24px, 24px 24px;
  position:relative;
  overflow-x:hidden;
}
body::before,body::after{
  content:"";
  position:fixed;
  width:620px;
  height:620px;
  border-radius:50%;
  filter:blur(120px);
  pointer-events:none;
  z-index:0;
}
body::before{background:rgba(31,182,255,.16);top:-220px;left:-180px;}
body::after{background:rgba(108,75,255,.13);bottom:-260px;right:-200px;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--link);text-decoration:none;transition:color .2s ease, text-decoration-color .2s ease;}
a:hover{color:#A8E6FF;text-decoration:underline;text-underline-offset:3px;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--aurora);outline-offset:3px;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;} }
.section{padding:64px 0;position:relative;z-index:2;}
@media (min-width:768px){ .section{padding:96px 0;} }
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{
  font-size:clamp(24px,3vw,34px);
  font-weight:700;
  line-height:1.35;
  letter-spacing:-0.01em;
}
.section-head p{color:var(--ink-2);font-size:16px;margin-top:14px;margin-bottom:0;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.08em;
  color:var(--ink-2);
  background:rgba(31,182,255,.10);
  border:1px solid rgba(31,182,255,.28);
  border-radius:999px;
  padding:6px 14px;
  margin-bottom:20px;
}
.eyebrow i{color:var(--aurora);}
/* ---------- header / nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:14px 0;
  backdrop-filter:blur(14px);
  background:linear-gradient(180deg, rgba(7,12,24,.92), rgba(7,12,24,.72));
  border-bottom:1px solid var(--line-soft);
}
.nav-panel{
  display:flex;
  align-items:center;
  gap:18px;
  background:rgba(12,20,38,.82);
  border:1px solid var(--line);
  border-radius:20px;
  padding:12px 16px;
  box-shadow:var(--shadow-deep);
  backdrop-filter:blur(20px);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--ink);
  text-decoration:none;
}
.brand:hover{text-decoration:none;color:var(--ink);}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:12px;
  font-weight:800;
  font-size:17px;
  color:#04121F;
  background:linear-gradient(135deg,#1FB6FF 0%,#6C4BFF 100%);
  box-shadow:var(--glow-blue);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.01em;}
.brand-text span{font-size:11px;color:var(--ink-3);letter-spacing:.12em;}
.nav-links{
  display:none;
  flex:1;
  gap:8px;
  align-items:center;
  justify-content:center;
}
@media (min-width:1024px){ .nav-links{display:flex;} }
.nav-item{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:8px 12px;
  border-radius:12px;
  font-size:14px;
  color:var(--ink-2);
  border:1px solid transparent;
  white-space:nowrap;
  transition:all .2s ease;
}
.nav-item i{font-size:13px;color:var(--ink-3);transition:color .2s ease;}
.nav-item:hover{
  color:var(--ink);
  text-decoration:none;
  background:rgba(255,255,255,.05);
  border-color:var(--line);
}
.nav-item:hover i{color:var(--aurora);}
.nav-item.active{
  color:var(--ink);
  background:rgba(31,182,255,.12);
  border-color:rgba(31,182,255,.34);
}
.nav-item.active i{color:var(--aurora);}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-toggle{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:var(--ink);
  cursor:pointer;
  transition:all .2s ease;
}
.nav-toggle:hover{border-color:rgba(31,182,255,.4);color:var(--aurora);}
@media (min-width:1024px){ .nav-toggle{display:none;} }
.nav-drawer{
  display:none;
  margin-top:12px;
  background:rgba(12,20,38,.96);
  border:1px solid var(--line);
  border-radius:20px;
  padding:16px;
  box-shadow:var(--shadow-deep);
}
.nav-drawer.open{display:block;}
@media (min-width:1024px){ .nav-drawer{display:none !important;} }
.drawer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;}
.drawer-link{
  display:flex;
  align-items:center;
  gap:8px;
  padding:12px;
  border-radius:12px;
  font-size:14px;
  color:var(--ink-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-soft);
}
.drawer-link:hover{color:var(--ink);text-decoration:none;border-color:rgba(31,182,255,.34);}
.drawer-link.active{color:var(--ink);border-color:rgba(31,182,255,.4);background:rgba(31,182,255,.12);}
.drawer-cta{margin-top:12px;display:block;text-align:center;}
/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  padding:12px 22px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
  text-decoration:none;
}
.btn:hover{text-decoration:none;transform:translateY(-2px);}
.btn-primary{
  background:linear-gradient(135deg,#FFC24D 0%,#FFB020 100%);
  color:var(--amber-ink);
  box-shadow:var(--glow-amber);
}
.btn-primary:hover{box-shadow:0 22px 50px -20px rgba(255,176,32,.68);color:var(--amber-ink);}
.btn-ghost{
  background:rgba(255,255,255,.05);
  border-color:var(--line);
  color:var(--ink);
}
.btn-ghost:hover{border-color:rgba(31,182,255,.45);color:var(--ink);box-shadow:var(--glow-blue);}
.btn-blue{
  background:linear-gradient(135deg,#1FB6FF 0%,#3D8CFF 100%);
  color:#04121F;
  box-shadow:var(--glow-blue);
}
.btn-sm{padding:9px 16px;font-size:14px;}
/* ---------- hero ---------- */
.hero{padding:48px 0 56px;position:relative;z-index:2;}
@media (min-width:768px){ .hero{padding:64px 0 80px;} }
.hero-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:44px;
  align-items:center;
  min-height:auto;
}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:1.05fr .95fr;gap:56px;min-height:78vh;}
}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);
  font-weight:800;
  line-height:1.25;
  letter-spacing:-0.01em;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,#1FB6FF 0%,#7FD7FF 55%,#6C4BFF 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  color:var(--ink-2);
  font-size:17px;
  margin-top:18px;
  margin-bottom:0;
  max-width:520px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;
  margin-top:40px;
  padding-top:26px;
  border-top:1px solid var(--line-soft);
}
.hero-stats li strong{
  display:block;
  font-size:24px;
  font-weight:800;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
}
.hero-stats li span{font-size:13px;color:var(--ink-3);}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;
  border-radius:20px;
  border:1px solid var(--line);
  object-fit:cover;
  box-shadow:var(--shadow-deep);
  aspect-ratio:4/3;
}
.float-card{
  position:absolute;
  background:rgba(15,25,46,.86);
  border:1px solid var(--line);
  border-radius:16px;
  padding:12px 16px;
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow-deep);
}
.float-card strong{
  display:block;
  font-size:18px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  color:var(--ink);
}
.float-card span{font-size:12px;color:var(--ink-3);}
.float-card--1{top:-18px;right:14px;border-color:rgba(31,182,255,.34);}
.float-card--1 strong{color:var(--aurora);}
.float-card--2{bottom:-20px;left:14px;border-color:rgba(255,176,32,.4);}
.float-card--2 strong{color:var(--amber);}
@media (max-width:767px){
  .float-card--1{top:10px;right:10px;}
  .float-card--2{bottom:10px;left:10px;}
}
/* ---------- ladder ---------- */
.ladder{display:flex;flex-direction:column;gap:26px;max-width:940px;}
.ladder-item{
  display:grid;
  grid-template-columns:56px 1fr;
  gap:18px;
  position:relative;
}
.ladder-item::before{
  content:"";
  position:absolute;
  left:27px;top:58px;bottom:-30px;
  width:1px;
  background:linear-gradient(180deg, rgba(31,182,255,.55), rgba(31,182,255,.05));
}
.ladder-item:last-child::before{display:none;}
.ladder-node{
  width:56px;height:56px;
  border-radius:16px;
  display:grid;place-items:center;
  font-weight:800;
  font-size:17px;
  font-variant-numeric:tabular-nums;
  color:var(--aurora);
  background:rgba(31,182,255,.10);
  border:1px solid rgba(31,182,255,.34);
}
.ladder-card{
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  border-radius:20px;
  padding:24px;
  backdrop-filter:blur(16px);
  transition:border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.ladder-card:hover{border-color:rgba(31,182,255,.42);transform:translateY(-2px);box-shadow:var(--glow-blue);}
.ladder-card h3{font-size:20px;font-weight:700;margin-bottom:6px;}
.ladder-card .tier{
  display:inline-block;
  font-size:12px;
  color:var(--ink-2);
  border:1px solid var(--line);
  border-radius:999px;
  padding:3px 12px;
  margin-bottom:14px;
}
.ladder-card ul{display:grid;gap:8px;margin-bottom:18px;}
.ladder-card ul li{
  display:flex;gap:9px;align-items:flex-start;
  font-size:14px;color:var(--ink-2);line-height:1.7;
}
.ladder-card ul li i{color:var(--aurora);font-size:12px;margin-top:6px;}
.ladder-item--bright .ladder-card{
  background:linear-gradient(160deg, rgba(31,182,255,.14), rgba(108,75,255,.08));
  border-color:rgba(31,182,255,.36);
  box-shadow:var(--glow-blue);
}
.ladder-item--bright .ladder-node{
  background:linear-gradient(135deg,#1FB6FF,#6C4BFF);
  color:#04121F;
  border-color:transparent;
}
/* ---------- plans ---------- */
.plans{
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
}
@media (min-width:640px){ .plans{grid-template-columns:repeat(2,minmax(0,1fr));} }
@media (min-width:1024px){ .plans{grid-template-columns:repeat(4,minmax(0,1fr));} }
.plan-card{
  position:relative;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:20px;
  padding:26px 22px;
  backdrop-filter:blur(16px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  display:flex;
  flex-direction:column;
  transition:border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.plan-card:hover{border-color:rgba(31,182,255,.4);transform:translateY(-2px);box-shadow:var(--glow-blue);}
.plan-card h3{font-size:18px;font-weight:700;margin-bottom:4px;}
.plan-card .plan-note{font-size:13px;color:var(--ink-3);margin-bottom:18px;}
.plan-price{
  display:flex;
  align-items:baseline;
  gap:6px;
  font-variant-numeric:tabular-nums;
  margin-bottom:18px;
}
.plan-price strong{font-size:34px;font-weight:800;color:var(--ink);letter-spacing:-.02em;}
.plan-price span{font-size:13px;color:var(--ink-3);}
.plan-list{display:grid;gap:10px;margin-bottom:22px;flex:1;}
.plan-list li{display:flex;gap:9px;font-size:14px;color:var(--ink-2);line-height:1.65;}
.plan-list li i{color:var(--aurora);font-size:12px;margin-top:6px;}
.plan-card.featured{
  background:linear-gradient(165deg, rgba(255,176,32,.14), rgba(31,182,255,.07));
  border-color:rgba(255,176,32,.46);
  box-shadow:var(--glow-amber);
}
.plan-card.featured .plan-price strong{color:var(--amber);}
.ribbon{
  position:absolute;
  top:-13px;left:22px;
  background:linear-gradient(135deg,#FFC24D,#FFB020);
  color:var(--amber-ink);
  font-size:12px;
  font-weight:700;
  letter-spacing:.04em;
  border-radius:999px;
  padding:5px 14px;
  box-shadow:var(--glow-amber);
}
@media (max-width:767px){
  .plan-card.featured{transform:none;}
}
/* ---------- flash bar ---------- */
.flash{
  display:grid;
  grid-template-columns:1fr;
  gap:22px;
  align-items:center;
  background:linear-gradient(120deg, rgba(255,176,32,.12), rgba(12,20,38,.9));
  border:1px solid rgba(255,176,32,.42);
  border-radius:20px;
  padding:24px;
  box-shadow:var(--glow-amber);
}
@media (min-width:900px){ .flash{grid-template-columns:auto 1fr auto;gap:32px;} }
.countdown{display:flex;gap:10px;}
.countdown div{
  min-width:64px;
  text-align:center;
  background:rgba(7,12,24,.72);
  border:1px solid rgba(255,176,32,.4);
  border-radius:14px;
  padding:10px 8px;
}
.countdown strong{
  display:block;
  font-size:24px;
  font-weight:800;
  color:var(--amber);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.countdown span{font-size:12px;color:var(--ink-3);}
.flash-body h3{font-size:20px;font-weight:700;margin-bottom:8px;}
.flash-body ul{display:grid;gap:6px;}
.flash-body ul li{font-size:14px;color:var(--ink-2);}
.flash-body ul li i{color:var(--amber);margin-right:8px;}
/* ---------- info cards (CMS) ---------- */
.info-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
}
@media (min-width:768px){ .info-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
@media (min-width:1024px){ .info-grid{grid-template-columns:repeat(3,minmax(0,1fr));} }
.info-card{
  display:flex;
  flex-direction:column;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:20px;
  overflow:hidden;
  backdrop-filter:blur(16px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.info-card:hover{border-color:rgba(31,182,255,.42);transform:translateY(-2px);box-shadow:var(--glow-blue);}
.info-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-elev-2);}
.info-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.info-card:hover .info-cover img{transform:scale(1.04);}
.info-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.info-badge{
  align-self:flex-start;
  font-size:12px;
  color:#A8E6FF;
  background:rgba(31,182,255,.12);
  border:1px solid rgba(31,182,255,.3);
  border-radius:999px;
  padding:3px 12px;
  margin-bottom:12px;
}
.info-body h3{
  font-size:17px;
  font-weight:700;
  line-height:1.55;
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.info-body h3 a{color:var(--ink);}
.info-body h3 a:hover{color:var(--aurora);text-decoration:none;}
.info-body p{
  font-size:14px;
  line-height:1.7;
  color:var(--ink-2);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:16px;
  flex:1;
}
.info-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--ink-3);
  border-top:1px solid var(--line-soft);
  padding-top:14px;
}
.info-meta a{font-size:13px;}
.empty-state{
  grid-column:1/-1;
  border:1px dashed rgba(255,255,255,.22);
  border-radius:20px;
  padding:52px 24px;
  text-align:center;
  color:var(--ink-2);
  background:rgba(255,255,255,.02);
}
.empty-state i{font-size:28px;color:var(--ink-3);display:block;margin-bottom:14px;}
.empty-state p{margin-bottom:18px;}
/* ---------- proof ---------- */
.proof{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:1024px){ .proof{grid-template-columns:.85fr 1.15fr;gap:24px;} }
.proof-panel{
  background:linear-gradient(160deg, rgba(31,182,255,.12), rgba(12,20,38,.9));
  border:1px solid var(--line);
  border-radius:20px;
  padding:28px;
  box-shadow:var(--shadow-deep);
}
.proof-panel h3{font-size:20px;font-weight:700;margin-bottom:8px;}
.proof-panel > p{font-size:14px;color:var(--ink-2);}
.proof-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:24px;}
.proof-metrics div{
  background:rgba(7,12,24,.6);
  border:1px solid var(--line-soft);
  border-radius:14px;
  padding:14px;
}
.proof-metrics strong{
  display:block;
  font-size:24px;
  font-weight:800;
  color:var(--aurora);
  font-variant-numeric:tabular-nums;
}
.proof-metrics span{font-size:12px;color:var(--ink-3);}
.voice-list{display:grid;gap:18px;}
.voice{
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:20px;
  padding:22px;
  backdrop-filter:blur(16px);
}
.voice-top{display:flex;align-items:center;gap:12px;margin-bottom:12px;}
.avatar{
  width:42px;height:42px;
  border-radius:50%;
  display:grid;place-items:center;
  font-size:15px;
  font-weight:700;
  color:#04121F;
  background:linear-gradient(135deg,#1FB6FF,#6C4BFF);
  flex-shrink:0;
}
.voice-top strong{display:block;font-size:15px;}
.voice-top span{font-size:12px;color:var(--ink-3);}
.voice p{font-size:14.5px;color:var(--ink-2);line-height:1.8;margin:0;}
.voice-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{
  font-size:12px;
  color:var(--ink-2);
  border:1px solid var(--line);
  border-radius:999px;
  padding:4px 12px;
  background:rgba(255,255,255,.03);
}
/* ---------- faq ---------- */
.faq-wrap{max-width:840px;margin:0 auto;}
.faq-item{
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:16px;
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .2s ease, background .2s ease;
}
.faq-item:hover{border-color:rgba(31,182,255,.38);}
.faq-item[open]{border-color:rgba(31,182,255,.42);background:rgba(31,182,255,.06);}
.faq-item summary{
  cursor:pointer;
  list-style:none;
  padding:18px 22px 18px 26px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";
  position:absolute;
  left:0;top:12px;bottom:12px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,#1FB6FF,#6C4BFF);
}
.faq-item summary i{color:var(--ink-3);font-size:14px;transition:transform .25s ease;}
.faq-item[open] summary i{transform:rotate(180deg);color:var(--aurora);}
.faq-answer{padding:0 22px 20px 26px;font-size:15px;line-height:1.9;color:var(--ink-2);}
/* ---------- form ---------- */
.contact-grid{display:grid;grid-template-columns:1fr;gap:22px;}
@media (min-width:1024px){ .contact-grid{grid-template-columns:1.25fr .75fr;gap:24px;} }
.form-card,.side-card{
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:20px;
  padding:28px;
  backdrop-filter:blur(16px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;
  font-family:inherit;
  font-size:15px;
  color:var(--ink);
  background:rgba(7,12,24,.7);
  border:1px solid var(--line);
  border-radius:var(--radius-input);
  padding:12px 14px;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.field textarea{min-height:118px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:#5A6A82;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:rgba(31,182,255,.7);
  box-shadow:0 0 0 3px rgba(31,182,255,.16);
}
.field.error input,.field.error select{border-color:rgba(255,90,90,.75);box-shadow:0 0 0 3px rgba(255,90,90,.14);}
.field .err-msg{display:none;font-size:12.5px;color:#FF8A8A;margin-top:6px;}
.field.error .err-msg{display:block;}
.form-row{display:grid;grid-template-columns:1fr;gap:18px;}
@media (min-width:640px){ .form-row{grid-template-columns:1fr 1fr;} }
.form-ok{
  display:none;
  margin-top:16px;
  font-size:14px;
  color:#9BFFD0;
  background:rgba(31,182,255,.10);
  border:1px solid rgba(31,182,255,.34);
  border-radius:12px;
  padding:12px 16px;
}
.form-ok.show{display:block;}
.side-card h3{font-size:19px;font-weight:700;margin-bottom:14px;}
.side-list{display:grid;gap:16px;}
.side-list li{display:flex;gap:12px;align-items:flex-start;}
.side-list i{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:12px;
  color:var(--aurora);
  background:rgba(31,182,255,.10);
  border:1px solid rgba(31,182,255,.28);
  flex-shrink:0;
}
.side-list strong{display:block;font-size:14.5px;}
.side-list span{font-size:13px;color:var(--ink-3);}
.side-note{
  margin-top:22px;
  padding-top:18px;
  border-top:1px solid var(--line-soft);
  font-size:13px;
  color:var(--ink-3);
  line-height:1.8;
}
/* ---------- cta strip ---------- */
.cta-strip{
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
  align-items:center;
  background:linear-gradient(120deg, rgba(31,182,255,.14), rgba(108,75,255,.12));
  border:1px solid rgba(31,182,255,.32);
  border-radius:20px;
  padding:28px;
  box-shadow:var(--glow-blue);
}
@media (min-width:900px){ .cta-strip{grid-template-columns:1fr auto;gap:32px;} }
.cta-strip h3{font-size:22px;font-weight:700;margin-bottom:8px;}
.cta-strip p{margin:0;font-size:15px;color:var(--ink-2);}
/* ---------- footer ---------- */
.site-footer{
  margin-top:64px;
  background:rgba(6,10,20,.94);
  border-top:1px solid var(--line);
  padding:56px 0 0;
  position:relative;
  z-index:2;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:34px;
}
@media (min-width:640px){ .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
@media (min-width:1024px){ .footer-grid{grid-template-columns:1.4fr .8fr .8fr 1fr;} }
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand span{font-size:17px;font-weight:800;color:var(--ink);}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-col p{font-size:14px;color:var(--ink-3);line-height:1.85;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:var(--ink-2);}
.footer-links a:hover{color:var(--aurora);}
.footer-contact{display:grid;gap:12px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);}
.footer-contact i{color:var(--aurora);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:44px;
  padding:20px 0;
  border-top:1px solid var(--line-soft);
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--ink-3);
}
.footer-bottom a{color:var(--ink-3);}
.footer-bottom a:hover{color:var(--aurora);}
@media (max-width:519px){
  .hero-stats{grid-template-columns:1fr;gap:12px;}
  .countdown div{min-width:52px;}
  .brand-text span{display:none;}
}

/* roulang page: article */
:root{
  --bg-base:#070C18;
  --bg-elev-1:#0C1426;
  --bg-elev-2:#111B33;
  --primary:#1FB6FF;
  --primary-soft:rgba(31,182,255,.12);
  --violet:#6C4BFF;
  --amber:#FFB020;
  --amber-ink:#1A1206;
  --text:#E8EEF8;
  --text-2:#A8B6CC;
  --text-3:#6C7C96;
  --link:#7FD7FF;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-card:0 18px 40px -24px rgba(31,182,255,.45);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.55;
}
.aurora{
  position:fixed;
  z-index:0;
  border-radius:50%;
  filter:blur(120px);
  pointer-events:none;
}
.aurora-a{width:520px;height:520px;top:-160px;left:-120px;background:rgba(31,182,255,.16)}
.aurora-b{width:460px;height:460px;bottom:-180px;right:-140px;background:rgba(108,75,255,.14)}
header,main,footer{position:relative;z-index:1}
img{max-width:100%;display:block}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text)}
p{margin:0}
ul,ol{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}

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

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;padding:14px 0 10px}
.nav-panel{
  display:flex;
  align-items:center;
  gap:16px;
  padding:10px 14px;
  border-radius:var(--radius-lg);
  background:rgba(12,20,38,.86);
  border:1px solid var(--line);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  box-shadow:0 20px 44px -32px rgba(0,0,0,.95),inset 0 1px 0 rgba(255,255,255,.07);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--violet));
  color:#04101C;font-weight:800;font-size:17px;line-height:1;
  box-shadow:0 12px 26px -14px rgba(31,182,255,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;color:var(--text);letter-spacing:.01em}
.brand-text span{font-size:10.5px;letter-spacing:.18em;color:var(--text-3);text-transform:uppercase}
.nav-links{display:flex;align-items:center;justify-content:center;gap:6px;flex:1 1 auto;min-width:0}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 14px;border-radius:var(--radius-sm);
  font-size:14px;color:var(--text-2);
  border:1px solid transparent;white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.nav-item i{font-size:13px;color:var(--text-3);transition:color .18s ease}
.nav-item:hover{background:rgba(255,255,255,.06);color:var(--text);border-color:var(--line);text-decoration:none}
.nav-item:hover i{color:var(--primary)}
.nav-item.active{color:#EAF7FF;background:var(--primary-soft);border-color:rgba(31,182,255,.38)}
.nav-item.active i{color:var(--primary)}
.nav-right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:42px;height:42px;align-items:center;justify-content:center;
  border-radius:var(--radius-sm);border:1px solid var(--line);
  background:rgba(255,255,255,.06);color:var(--text);cursor:pointer;
  transition:background .18s ease,border-color .18s ease;
}
.nav-toggle:hover{background:rgba(31,182,255,.14);border-color:rgba(31,182,255,.5)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;text-decoration:none;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn-primary{background:linear-gradient(135deg,#FFC75C,#FFB020);color:var(--amber-ink);box-shadow:0 14px 30px -16px rgba(255,176,32,.8)}
.btn-primary:hover{box-shadow:0 20px 38px -16px rgba(255,176,32,.95);color:var(--amber-ink)}
.btn-ghost{background:rgba(255,255,255,.05);border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:rgba(31,182,255,.55);background:rgba(31,182,255,.10);color:#fff}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%}

/* ---------- 页头 ---------- */
.page-head{
  padding:34px 0 34px;
  border-bottom:1px solid var(--line-soft);
  background-image:linear-gradient(180deg,rgba(7,12,24,.86),rgba(7,12,24,.97)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.breadcrumb a{color:var(--text-2);text-decoration:none}
.breadcrumb a:hover{color:var(--link);text-decoration:underline}
.breadcrumb .sep{color:var(--text-3);opacity:.6}
.breadcrumb .current{color:var(--text-3);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{font-size:clamp(28px,4.2vw,46px);line-height:1.25;letter-spacing:-.01em;font-weight:800;color:#fff;max-width:900px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:999px;font-size:13px;
  color:var(--text-2);background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.chip i{font-size:12px;color:var(--primary)}
.chip-accent{background:linear-gradient(135deg,var(--primary),#5FCBFF);border-color:transparent;color:#04121E;font-weight:600}
.article-lead{margin-top:18px;max-width:780px;font-size:15px;line-height:1.9;color:var(--text-2)}

/* ---------- 板块通用 ---------- */
.section{padding:52px 0}
@media (min-width:768px){.section{padding:72px 0}}
.section-head{max-width:720px;margin-bottom:26px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.12em;color:var(--primary);text-transform:uppercase;margin-bottom:12px}
.section-head h2{font-size:clamp(22px,2.7vw,30px);line-height:1.35;margin-bottom:10px}
.section-head p{font-size:14.5px;color:var(--text-3)}

/* ---------- 正文区 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:28px}
@media (min-width:1024px){.article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:34px}}
.article-card{
  position:relative;
  padding:26px 22px;
  border-radius:var(--radius-lg);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.article-card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  border-top:1px solid rgba(255,255,255,.15);
}
@media (min-width:768px){.article-card{padding:42px 46px}}

.article-body{font-size:16.5px;line-height:1.9;color:var(--text-2);word-wrap:break-word}
.article-body>*+*{margin-top:1em}
.article-body h2{
  position:relative;padding-left:16px;margin:2.2em 0 .8em;
  font-size:clamp(21px,2.4vw,26px);line-height:1.4;color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),var(--violet));
}
.article-body h3{font-size:19px;line-height:1.5;color:var(--text);margin:1.8em 0 .6em}
.article-body h4{font-size:16.5px;color:var(--text);margin:1.5em 0 .5em}
.article-body p{margin:0 0 1.05em}
.article-body a{color:var(--link);border-bottom:1px solid rgba(127,215,255,.35);text-decoration:none}
.article-body a:hover{color:#fff;border-color:#fff;text-decoration:none}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.2em}
.article-body li{margin:.42em 0}
.article-body li::marker{color:var(--primary)}
.article-body strong{color:var(--text)}
.article-body img{width:auto;max-width:100%;height:auto;margin:1.5em 0;border-radius:var(--radius-md);border:1px solid var(--line)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;
  border-left:3px solid var(--primary);
  background:rgba(255,255,255,.045);
  border-radius:0 14px 14px 0;
  color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;
  font-size:15px;border:1px solid var(--line);border-radius:14px;overflow:hidden;
}
.article-body th{background:rgba(31,182,255,.12);color:var(--text);text-align:left;font-weight:600}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line-soft)}
.article-body tbody tr:nth-child(odd){background:rgba(255,255,255,.022)}
.article-body tbody tr:hover{background:rgba(31,182,255,.07)}
.article-body code{background:rgba(255,255,255,.08);padding:2px 6px;border-radius:6px;font-size:14px;color:#CFE9FF}
.article-body hr{border:0;border-top:1px solid var(--line-soft);margin:2em 0}

.empty-state{padding:30px 6px;text-align:center}
.empty-state i{font-size:38px;color:var(--primary);opacity:.85}
.empty-state h2{font-size:22px;margin:18px 0 10px}
.empty-state p{color:var(--text-3);font-size:14.5px;margin-bottom:22px}

.article-foot{
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
  margin-top:26px;padding-top:22px;border-top:1px solid var(--line-soft);
}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:999px;font-size:13px;color:var(--text-2);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.tag:hover{color:#fff;background:rgba(31,182,255,.12);border-color:rgba(31,182,255,.5);text-decoration:none}
.article-back{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2)}
.article-back:hover{color:var(--link)}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:18px}
@media (min-width:1024px){
  .article-side{position:sticky;top:104px;align-self:start}
}
.side-card{
  padding:20px;border-radius:18px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
}
.side-card h3{font-size:15px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--primary);font-size:14px}
.side-meta{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;font-size:13.5px;color:var(--text-3)}
.side-meta li{display:flex;align-items:flex-start;gap:9px}
.side-meta i{color:var(--primary);margin-top:4px;font-size:12px}
.side-list{display:flex;flex-direction:column;gap:8px}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:var(--radius-sm);font-size:14px;
  color:var(--text-2);background:rgba(255,255,255,.03);border:1px solid var(--line-soft);
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.side-list a:hover{color:#fff;background:rgba(31,182,255,.10);border-color:rgba(31,182,255,.45);text-decoration:none}
.side-list a i{font-size:12px;color:var(--primary)}

/* ---------- 推荐卡片 ---------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.related-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:18px;background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.related-card:hover{transform:translateY(-4px);border-color:rgba(31,182,255,.5);box-shadow:var(--shadow-card);text-decoration:none}
.related-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--bg-elev-1)}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.related-card:hover .thumb img{transform:scale(1.05)}
.related-card .body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.related-card h3{font-size:17px;line-height:1.45;margin-bottom:8px;color:var(--text)}
.related-card .body p{font-size:13.5px;line-height:1.72;color:var(--text-3);margin:0}
.related-card .meta{
  display:flex;align-items:center;gap:8px;margin-top:14px;padding-top:12px;
  border-top:1px solid var(--line-soft);font-size:12.5px;color:var(--text-3);
}
.related-card .meta i{font-size:11px;color:var(--primary)}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:999px;
  font-size:12px;font-weight:600;color:#CFF0FF;background:rgba(31,182,255,.14);border:1px solid rgba(31,182,255,.32);
}

/* ---------- 转化条 ---------- */
.cta-strip{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  padding:28px 26px;border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(255,176,32,.14),rgba(31,182,255,.10));
  border:1px solid rgba(255,176,32,.45);
  box-shadow:0 26px 54px -34px rgba(255,176,32,.75);
}
.cta-strip h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:8px}
.cta-strip p{font-size:14.5px;color:var(--text-2);max-width:60ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:72px;background:#05090F;border-top:1px solid var(--line);padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--text);margin-bottom:14px}
.footer-col h4{font-size:15px;margin-bottom:14px}
.footer-col p{font-size:14px;line-height:1.85;color:var(--text-3)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--text-3);text-decoration:none;transition:color .16s ease,padding-left .16s ease}
.footer-links a:hover{color:var(--link);padding-left:4px;text-decoration:none}
.footer-contact{list-style:none;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-3)}
.footer-contact i{color:var(--primary);margin-top:5px;font-size:12px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:38px;padding-top:18px;border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-panel{flex-wrap:wrap}
  .nav-links{
    display:none;order:4;flex-basis:100%;width:100%;
    padding-top:14px;margin-top:12px;border-top:1px solid var(--line-soft);
  }
  .nav-panel.is-open .nav-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .nav-item{justify-content:flex-start;width:100%}
  .nav-right{margin-left:auto}
  .nav-toggle{display:inline-flex}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .article-title{font-size:26px}
  .breadcrumb .current{max-width:220px}
  .nav-item{font-size:13.5px;padding:9px 10px}
  .brand-text span{display:none}
  .footer-grid{grid-template-columns:1fr}
  .cta-strip{padding:24px 20px}
  .btn{width:auto}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}

/* roulang page: category1 */
:root{
    --bg-base:#070C18;
    --bg-elev-1:#0C1426;
    --bg-elev-2:#101B33;
    --primary:#1FB6FF;
    --primary-soft:rgba(31,182,255,.14);
    --violet:#6C4BFF;
    --promo:#FFB020;
    --promo-ink:#1A1206;
    --text-1:#E8EEF8;
    --text-2:#A8B6CC;
    --text-3:#6C7C96;
    --link:#7FD7FF;
    --line:rgba(255,255,255,.10);
    --line-soft:rgba(255,255,255,.06);
    --radius-card:20px;
    --radius-btn:12px;
    --radius-pill:999px;
    --shadow-card:0 18px 40px -24px rgba(31,182,255,.45);
    --shadow-promo:0 18px 44px -22px rgba(255,176,32,.55);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    background-color:var(--bg-base);
    color:var(--text-1);
    font-size:16px;
    line-height:1.85;
    letter-spacing:.01em;
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    background-image:
      linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
    background-size:24px 24px;
    pointer-events:none;
    z-index:0;
  }
  .glow{
    position:fixed;
    border-radius:50%;
    filter:blur(120px);
    pointer-events:none;
    z-index:0;
  }
  .glow-a{width:520px;height:520px;background:var(--primary);opacity:.16;top:-170px;left:-140px;}
  .glow-b{width:460px;height:460px;background:var(--violet);opacity:.12;top:520px;right:-170px;}

  img{max-width:100%;display:block;height:auto;}
  a{color:var(--link);text-decoration:none;transition:color .18s ease;}
  a:hover{color:#C6ECFF;text-decoration:underline;}
  button,input,select,textarea{font:inherit;color:inherit;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  h1{font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.25;letter-spacing:-.01em;}
  h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.35;}
  h3{font-size:20px;font-weight:700;line-height:1.4;}
  p{color:var(--text-2);font-size:16px;}
  :focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
  ::selection{background:rgba(31,182,255,.35);}

  .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;}}

  /* ---------- 顶部导航 ---------- */
  .site-header{position:sticky;top:0;z-index:60;padding:14px 0;}
  .nav-panel{
    display:flex;
    align-items:center;
    gap:16px;
    padding:12px 16px;
    border-radius:20px;
    background:rgba(12,20,38,.84);
    border:1px solid var(--line);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    box-shadow:var(--shadow-card);
    flex-wrap:wrap;
  }
  .brand{display:flex;align-items:center;gap:10px;text-decoration:none;}
  .brand:hover{text-decoration:none;}
  .brand-mark{
    width:38px;height:38px;flex:0 0 38px;
    border-radius:12px;
    display:grid;place-items:center;
    background:linear-gradient(135deg,var(--primary),var(--violet));
    color:#04101F;font-weight:800;font-size:17px;
    box-shadow:0 10px 24px -12px rgba(31,182,255,.85);
  }
  .brand-text strong{display:block;font-size:16px;color:var(--text-1);line-height:1.3;letter-spacing:.02em;}
  .brand-text span{display:block;font-size:11px;color:var(--text-3);letter-spacing:.16em;line-height:1.4;}
  .nav-links{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-left:auto;}
  .nav-item{
    display:inline-flex;align-items:center;gap:7px;
    padding:9px 13px;border-radius:12px;
    font-size:14px;color:var(--text-2);
    border:1px solid transparent;
    transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
    white-space:nowrap;
  }
  .nav-item:hover{color:#fff;background:rgba(255,255,255,.06);border-color:var(--line);text-decoration:none;transform:translateY(-1px);}
  .nav-item i{color:var(--link);font-size:13px;}
  .nav-item.active{
    color:#EAF6FF;
    background:linear-gradient(180deg,rgba(31,182,255,.22),rgba(31,182,255,.06));
    border-color:rgba(31,182,255,.45);
  }
  .nav-right{display:flex;align-items:center;gap:10px;}
  .nav-toggle{
    display:none;
    width:42px;height:42px;border-radius:12px;
    background:rgba(255,255,255,.05);
    border:1px solid var(--line);
    color:var(--text-1);cursor:pointer;
    transition:background .18s ease,border-color .18s ease;
  }
  .nav-toggle:hover{background:rgba(31,182,255,.16);border-color:rgba(31,182,255,.45);}

  /* ---------- 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;
    border:1px solid transparent;cursor:pointer;
    transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
    text-decoration:none;
  }
  .btn:hover{text-decoration:none;transform:translateY(-2px);}
  .btn-primary{
    background:linear-gradient(180deg,#FFC košile, #FFB020);
    background:linear-gradient(180deg,#FFC761,var(--promo));
    color:var(--promo-ink);
    box-shadow:var(--shadow-promo);
  }
  .btn-primary:hover{box-shadow:0 22px 52px -20px rgba(255,176,32,.75);color:var(--promo-ink);}
  .btn-ghost{
    background:rgba(255,255,255,.05);
    border-color:var(--line);
    color:var(--text-1);
  }
  .btn-ghost:hover{border-color:rgba(31,182,255,.55);background:rgba(31,182,255,.12);color:#fff;}
  .btn-sm{padding:9px 16px;font-size:14px;border-radius:11px;}

  /* ---------- 面包屑 & 矮 Hero ---------- */
  .page-hero{
    position:relative;
    overflow:hidden;
    padding:44px 0 48px;
    border-bottom:1px solid var(--line);
    min-height:42vh;
    display:flex;align-items:center;
  }
  .page-hero__bg{
    position:absolute;inset:0;
    background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    opacity:.26;
    z-index:0;
  }
  .page-hero::after{
    content:"";
    position:absolute;inset:0;z-index:0;
    background:linear-gradient(180deg,rgba(7,12,24,.6),rgba(7,12,24,.94));
  }
  .page-hero__inner{position:relative;z-index:1;}
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px;flex-wrap:wrap;}
  .breadcrumb a{color:var(--text-2);}
  .breadcrumb a:hover{color:var(--link);}
  .breadcrumb .sep{color:var(--text-3);}
  .breadcrumb .current{color:var(--link);}
  .hero-brand{
    display:block;
    font-size:13px;font-weight:600;letter-spacing:.18em;
    color:var(--primary);
    margin-bottom:10px;
    text-transform:uppercase;
  }
  .hero-lead{max-width:660px;margin-top:16px;font-size:17px;color:var(--text-2);}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
  .pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
  .pill{
    display:inline-flex;align-items:center;gap:6px;
    padding:6px 14px;border-radius:var(--radius-pill);
    font-size:13px;color:var(--text-2);
    background:rgba(255,255,255,.05);
    border:1px solid var(--line);
  }
  .pill i{color:var(--primary);font-size:12px;}
  .pill--promo{color:#FFD98A;border-color:rgba(255,176,32,.4);background:rgba(255,176,32,.10);}
  .pill--promo i{color:var(--promo);}

  /* ---------- 板块 ---------- */
  .section{padding:64px 0;position:relative;z-index:1;}
  @media (min-width:768px){.section{padding:88px 0;}}
  .section-head{max-width:760px;margin-bottom:36px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;letter-spacing:.14em;color:var(--primary);
    margin-bottom:14px;
  }
  .eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),var(--violet));}
  .section-head p{margin-top:14px;}

  /* ---------- 三张亮点卡 ---------- */
  .grid-3{display:grid;grid-template-columns:1fr;gap:20px;}
  @media (min-width:768px){.grid-3{grid-template-columns:repeat(2,1fr);}}
  @media (min-width:1024px){.grid-3{grid-template-columns:repeat(3,1fr);gap:24px;}}
  .card{
    position:relative;
    padding:26px 24px;
    border-radius:var(--radius-card);
    background:rgba(255,255,255,.05);
    border:1px solid var(--line);
    box-shadow:inset 0 1px 0 var(--line-soft),var(--shadow-card);
    transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .card:hover{transform:translateY(-4px);border-color:rgba(31,182,255,.42);box-shadow:inset 0 1px 0 var(--line-soft),0 26px 54px -26px rgba(31,182,255,.7);}
  .card-icon{
    width:46px;height:46px;border-radius:14px;
    display:grid;place-items:center;
    background:linear-gradient(135deg,rgba(31,182,255,.26),rgba(108,75,255,.22));
    border:1px solid rgba(31,182,255,.35);
    color:var(--link);font-size:18px;
    margin-bottom:18px;
  }
  .card h3{margin-bottom:12px;color:var(--text-1);}
  .card p{font-size:15px;line-height:1.8;}
  .card-tag{
    display:inline-block;margin-top:18px;
    font-size:12px;letter-spacing:.1em;
    color:var(--text-3);
  }

  /* ---------- 图文交替 ---------- */
  .split{display:grid;grid-template-columns:1fr;gap:26px;align-items:center;}
  .split + .split{margin-top:56px;}
  @media (min-width:1024px){
    .split{grid-template-columns:1.02fr 1fr;gap:56px;}
    .split + .split{margin-top:80px;}
    .split.reverse .split-media{order:2;}
    .split.reverse .split-body{order:1;}
  }
  .split-media{position:relative;}
  .split-media img{
    width:100%;
    border-radius:18px;
    border:1px solid var(--line);
    box-shadow:0 26px 60px -34px rgba(31,182,255,.75);
    object-fit:cover;
    aspect-ratio:16/10;
  }
  .split-media::after{
    content:"";position:absolute;inset:-14% -10% auto auto;width:220px;height:220px;
    background:radial-gradient(circle,rgba(31,182,255,.28),transparent 70%);
    filter:blur(20px);z-index:-1;
  }
  .split-body h3{margin-bottom:14px;}
  .split-body p + p{margin-top:1em;}
  .check-list{margin-top:20px;display:grid;gap:10px;}
  .check-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2);line-height:1.7;}
  .check-list i{color:var(--primary);margin-top:6px;font-size:13px;}

  /* ---------- 数据要点条 ---------- */
  .stat-strip{
    padding:32px 24px;
    border-radius:var(--radius-card);
    background:linear-gradient(180deg,rgba(16,27,51,.9),rgba(12,20,38,.9));
    border:1px solid var(--line);
    box-shadow:inset 0 1px 0 var(--line-soft);
    display:grid;grid-template-columns:repeat(2,1fr);gap:26px 20px;
  }
  @media (min-width:1024px){.stat-strip{grid-template-columns:repeat(4,1fr);padding:40px 32px;}}
  .stat-item{text-align:left;border-left:2px solid rgba(31,182,255,.5);padding-left:16px;}
  .stat-num{
    font-size:clamp(28px,3.4vw,40px);
    font-weight:800;color:#fff;line-height:1.1;
    font-variant-numeric:tabular-nums;
  }
  .stat-num small{font-size:16px;font-weight:600;color:var(--link);margin-left:4px;}
  .stat-label{display:block;margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.6;}

  /* ---------- 中部 CTA 条 ---------- */
  .cta-band{
    display:flex;flex-wrap:wrap;gap:22px;
    align-items:center;justify-content:space-between;
    padding:28px 26px;
    border-radius:var(--radius-card);
    border:1px solid rgba(255,176,32,.45);
    background:linear-gradient(90deg,rgba(255,176,32,.12),rgba(255,176,32,.02));
    box-shadow:0 26px 60px -32px rgba(255,176,32,.7);
  }
  .cta-band__text{max-width:640px;}
  .cta-band__text h3{color:#FFE3AE;margin-bottom:10px;}
  .cta-band__text p{font-size:15px;color:var(--text-2);}
  .cta-band__actions{display:flex;flex-wrap:wrap;gap:12px;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    margin-top:32px;
    padding:56px 0 28px;
    background:#050A14;
    border-top:1px solid var(--line);
    position:relative;z-index:1;
  }
  .footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
  @media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:42px;}}
  .footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--text-1);margin-bottom:16px;}
  .footer-col p{font-size:14px;line-height:1.85;color:var(--text-3);}
  .footer-col h4{font-size:15px;color:var(--text-1);margin-bottom:16px;letter-spacing:.04em;}
  .footer-links{display:grid;gap:11px;}
  .footer-links a{font-size:14px;color:var(--text-2);}
  .footer-links a:hover{color:var(--link);}
  .footer-contact{display:grid;gap:12px;}
  .footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.6;}
  .footer-contact i{color:var(--primary);margin-top:5px;font-size:13px;}
  .footer-bottom{
    margin-top:40px;padding-top:20px;
    border-top:1px solid var(--line-soft);
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
    font-size:13px;color:var(--text-3);
  }

  /* ---------- 响应式导航 ---------- */
  @media (max-width:1023px){
    .nav-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;}
    .nav-right{margin-left:0;}
    .nav-panel{position:relative;}
    .nav-links{
      display:none;
      width:100%;
      order:5;
      margin-left:0;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:10px;
      padding-top:14px;
      border-top:1px solid var(--line-soft);
    }
    .nav-links.is-open{display:grid;}
    .nav-item{justify-content:flex-start;background:rgba(255,255,255,.04);border-color:var(--line-soft);}
  }
  @media (max-width:767px){
    .nav-right{width:100%;flex-direction:column;align-items:stretch;}
    .nav-right .btn{width:100%;}
    .nav-toggle{position:absolute;top:14px;right:16px;}
    .page-hero{padding:34px 0 40px;min-height:0;}
    .hero-actions .btn{width:100%;}
    .stat-strip{gap:22px 16px;}
    .cta-band{padding:24px 20px;}
    .cta-band__actions{width:100%;}
    .cta-band__actions .btn{width:100%;}
  }
  @media (max-width:520px){
    .brand-text span{letter-spacing:.1em;}
    .brand-text strong{font-size:15px;}
    .stat-strip{grid-template-columns:1fr;}
  }

/* roulang page: category2 */
:root {
    --bg-base: #070C18;
    --bg-elev-1: #0C1426;
    --bg-elev-2: #101A30;
    --brand: #1FB6FF;
    --brand-2: #6C4BFF;
    --gold: #FFB020;
    --gold-ink: #1A1206;
    --text-1: #E8EEF8;
    --text-2: #A8B6CC;
    --text-3: #6C7C96;
    --link: #7FD7FF;
    --line: rgba(255, 255, 255, .10);
    --line-soft: rgba(255, 255, 255, .06);
    --glass: rgba(255, 255, 255, .05);
    --radius-card: 20px;
    --radius-btn: 12px;
    --glow-blue: 0 18px 40px -24px rgba(31, 182, 255, .45);
    --shadow-card: 0 20px 44px -28px rgba(0, 0, 0, .9), inset 0 1px 0 rgba(255, 255, 255, .08);
  }

  * { box-sizing: border-box; }

  html { scroll-behavior: smooth; }

  body {
    margin: 0;
    font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
    font-size: 16px;
    line-height: 1.85;
    color: var(--text-1);
    background-color: var(--bg-base);
    background-image:
      linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
    background-size: 24px 24px;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

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

  a { color: var(--link); text-decoration: none; transition: color .2s ease; }
  a:hover { text-decoration: underline; }
  a:focus-visible,
  button:focus-visible,
  summary:focus-visible,
  input:focus-visible,
  select:focus-visible,
  textarea:focus-visible {
    outline: 2px solid var(--link);
    outline-offset: 2px;
    border-radius: 6px;
  }

  h1, h2, h3, h4 { margin: 0; line-height: 1.3; color: var(--text-1); }
  p { margin: 0; }

  .aurora {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
    z-index: 0;
  }
  .aurora-1 { width: 520px; height: 520px; top: -170px; left: -130px; background: rgba(31, 182, 255, .16); }
  .aurora-2 { width: 460px; height: 460px; top: 42%; right: -170px; background: rgba(108, 75, 255, .14); }

  .site-header, main, .site-footer { position: relative; z-index: 1; }

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

  /* ---------- 导航 ---------- */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    padding: 12px 0;
  }

  .nav-panel {
    position: relative;
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 10px 14px;
    background: rgba(12, 20, 38, .84);
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    border: 1px solid var(--line);
    border-radius: 20px;
    box-shadow: var(--glow-blue);
  }

  .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex: 0 0 auto;
  }
  .brand:hover { text-decoration: none; }

  .brand-mark {
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 800;
    color: #04141f;
    background: linear-gradient(135deg, var(--brand), var(--brand-2));
    box-shadow: 0 10px 24px -12px rgba(31, 182, 255, .9);
  }

  .brand-text { display: flex; flex-direction: column; line-height: 1.15; }
  .brand-text strong { font-size: 16px; font-weight: 800; color: var(--text-1); letter-spacing: .01em; }
  .brand-text span { font-size: 11px; letter-spacing: .18em; color: var(--text-3); }

  .nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
    flex-wrap: wrap;
  }

  .nav-item {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 9px 13px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-2);
    background: rgba(255, 255, 255, .04);
    border: 1px solid var(--line-soft);
    border-radius: 12px;
    text-decoration: none;
    transition: background .22s ease, border-color .22s ease, color .22s ease, transform .22s ease;
  }
  .nav-item i { font-size: 13px; color: var(--text-3); transition: color .22s ease; }
  .nav-item:hover {
    color: var(--text-1);
    background: rgba(255, 255, 255, .09);
    border-color: rgba(31, 182, 255, .4);
    transform: translateY(-1px);
    text-decoration: none;
  }
  .nav-item:hover i { color: var(--brand); }
  .nav-item.active {
    color: #06131f;
    background: linear-gradient(135deg, rgba(31, 182, 255, .95), rgba(108, 75, 255, .9));
    border-color: transparent;
    box-shadow: 0 12px 26px -14px rgba(31, 182, 255, .9);
  }
  .nav-item.active i { color: #06131f; }

  .nav-right { display: flex; align-items: center; gap: 10px; margin-left: auto; }
  .nav-links + .nav-right { margin-left: 0; }

  .nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, .05);
    color: var(--text-1);
    font-size: 16px;
    cursor: pointer;
    transition: background .2s ease, border-color .2s ease;
  }
  .nav-toggle:hover { background: rgba(255, 255, 255, .1); border-color: rgba(31, 182, 255, .45); }

  /* ---------- 按钮 ---------- */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 22px;
    font-size: 15px;
    font-weight: 700;
    font-family: inherit;
    border-radius: var(--radius-btn);
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
    transition: transform .2s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease;
  }
  .btn:hover { text-decoration: none; transform: translateY(-2px); }
  .btn:active { transform: translateY(0); }

  .btn-primary {
    background: linear-gradient(135deg, var(--brand), var(--brand-2));
    color: #ffffff;
    box-shadow: 0 16px 32px -18px rgba(31, 182, 255, .95);
  }
  .btn-primary:hover { box-shadow: 0 22px 40px -18px rgba(31, 182, 255, 1); }

  .btn-gold {
    background: var(--gold);
    color: var(--gold-ink);
    box-shadow: 0 16px 34px -16px rgba(255, 176, 32, .9);
  }
  .btn-gold:hover { box-shadow: 0 22px 42px -16px rgba(255, 176, 32, 1); }

  .btn-ghost {
    background: rgba(255, 255, 255, .06);
    border-color: rgba(255, 255, 255, .18);
    color: var(--text-1);
  }
  .btn-ghost:hover { background: rgba(255, 255, 255, .12); border-color: rgba(31, 182, 255, .5); }

  .btn-sm { padding: 10px 16px; font-size: 14px; border-radius: 10px; }

  /* ---------- 首屏（矮版） ---------- */
  .hero-short {
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--line);
  }
  .hero-short-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: .32;
  }
  .hero-short::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(7, 12, 24, .6) 0%, rgba(7, 12, 24, .9) 62%, var(--bg-base) 100%);
  }
  .hero-short-inner {
    position: relative;
    z-index: 2;
    padding: 34px 0 54px;
    max-width: 760px;
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-3);
    margin-bottom: 20px;
  }
  .breadcrumb a { color: var(--text-2); }
  .breadcrumb a:hover { color: var(--link); }
  .breadcrumb span { color: var(--text-3); }

  .hero-short h1 {
    font-size: clamp(30px, 4.4vw, 48px);
    font-weight: 800;
    letter-spacing: -.01em;
    line-height: 1.25;
    margin-bottom: 16px;
  }
  .hero-short h1 em {
    font-style: normal;
    background: linear-gradient(120deg, var(--brand), var(--brand-2));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
  .hero-lead {
    font-size: 16px;
    color: var(--text-2);
    max-width: 620px;
    margin-bottom: 26px;
  }
  .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

  /* ---------- 通用板块 ---------- */
  .section { padding: 62px 0; }
  @media (min-width: 768px) {
    .section { padding: 88px 0; }
  }

  .section-head { max-width: 720px; margin-bottom: 34px; }
  .section-tag {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 5px 13px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .08em;
    color: var(--link);
    background: rgba(31, 182, 255, .1);
    border: 1px solid rgba(31, 182, 255, .28);
    border-radius: 999px;
    margin-bottom: 16px;
  }
  .section-head h2 {
    font-size: clamp(24px, 3vw, 34px);
    font-weight: 700;
    margin-bottom: 14px;
  }
  .section-head p { color: var(--text-2); font-size: 16px; }

  /* ---------- 速览图文 ---------- */
  .overview-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    align-items: center;
  }
  @media (min-width: 900px) {
    .overview-grid { grid-template-columns: .95fr 1.05fr; gap: 48px; }
  }

  .overview-figure {
    position: relative;
    border-radius: var(--radius-card);
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-card);
  }
  .overview-figure img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; }
  .overview-figure::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(200deg, rgba(31, 182, 255, .22), transparent 55%);
    pointer-events: none;
  }

  .overview-list { display: grid; gap: 14px; margin-top: 22px; }
  .overview-item {
    display: flex;
    gap: 14px;
    padding: 16px 18px;
    background: var(--glass);
    border: 1px solid var(--line);
    border-radius: 16px;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .06);
    transition: border-color .25s ease, transform .25s ease;
  }
  .overview-item:hover { border-color: rgba(31, 182, 255, .45); transform: translateY(-2px); }
  .overview-item i {
    flex: 0 0 auto;
    width: 36px;
    height: 36px;
    display: grid;
    place-items: center;
    border-radius: 10px;
    font-size: 15px;
    color: var(--brand);
    background: rgba(31, 182, 255, .12);
  }
  .overview-item h3 { font-size: 16px; margin-bottom: 4px; }
  .overview-item p { font-size: 14px; color: var(--text-2); line-height: 1.7; }

  /* ---------- 数据条 ---------- */
  .stat-bar {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  @media (min-width: 860px) {
    .stat-bar { grid-template-columns: repeat(4, 1fr); gap: 20px; }
  }
  .stat-item {
    padding: 22px 18px;
    text-align: center;
    background: linear-gradient(180deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, .03));
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .07);
  }
  .stat-num {
    display: block;
    font-size: 30px;
    font-weight: 800;
    line-height: 1.2;
    color: var(--brand);
    font-variant-numeric: tabular-nums;
    margin-bottom: 6px;
  }
  .stat-num small { font-size: 14px; font-weight: 600; color: var(--text-2); margin-left: 3px; }
  .stat-label { font-size: 13px; color: var(--text-2); }

  /* ---------- 对照表 ---------- */
  .table-wrap {
    overflow-x: auto;
    border-radius: var(--radius-card);
  }
  .tier-table {
    width: 100%;
    min-width: 780px;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 14px;
    background: rgba(255, 255, 255, .03);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    overflow: hidden;
  }
  .tier-table caption {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
  }
  .tier-table th,
  .tier-table td {
    padding: 15px 18px;
    text-align: left;
    border-bottom: 1px solid var(--line-soft);
    vertical-align: middle;
  }
  .tier-table thead th {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .04em;
    color: var(--text-1);
    background: rgba(31, 182, 255, .1);
    border-bottom: 1px solid rgba(31, 182, 255, .22);
    white-space: nowrap;
  }
  .tier-table tbody tr { transition: background .2s ease; }
  .tier-table tbody tr:nth-child(even) { background: rgba(255, 255, 255, .025); }
  .tier-table tbody tr:hover { background: rgba(31, 182, 255, .08); }
  .tier-table tbody th {
    font-size: 15px;
    font-weight: 700;
    color: var(--link);
    white-space: nowrap;
  }
  .tier-table td { color: var(--text-2); }
  .tier-table .cell-strong { color: var(--text-1); font-weight: 600; }

  .table-note {
    margin-top: 16px;
    font-size: 13px;
    color: var(--text-3);
    display: flex;
    align-items: flex-start;
    gap: 8px;
  }
  .table-note i { color: var(--brand); margin-top: 5px; }

  /* ---------- 领取方式 ---------- */
  .step-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
  }
  @media (min-width: 780px) {
    .step-cards { grid-template-columns: repeat(3, 1fr); }
  }
  .step-card {
    position: relative;
    padding: 26px 22px 24px;
    background: var(--glass);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    transition: transform .25s ease, border-color .25s ease;
  }
  .step-card:hover { transform: translateY(-4px); border-color: rgba(31, 182, 255, .5); }
  .step-card .step-index {
    display: block;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .16em;
    color: var(--brand);
    font-variant-numeric: tabular-nums;
    margin-bottom: 14px;
  }
  .step-card h3 { font-size: 18px; margin-bottom: 10px; }
  .step-card p { font-size: 14px; color: var(--text-2); line-height: 1.75; }
  .step-card::before {
    content: "";
    position: absolute;
    left: 22px;
    right: 22px;
    top: 0;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--brand), transparent);
    opacity: .7;
  }

  /* ---------- CTA 条 ---------- */
  .cta-band {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 22px;
    padding: 30px 26px;
    background: linear-gradient(120deg, rgba(255, 176, 32, .12), rgba(12, 20, 38, .9) 55%);
    border: 1px solid rgba(255, 176, 32, .45);
    border-radius: var(--radius-card);
    box-shadow: 0 28px 60px -34px rgba(255, 176, 32, .75), inset 0 1px 0 rgba(255, 255, 255, .1);
  }
  @media (min-width: 860px) {
    .cta-band { flex-direction: row; align-items: center; justify-content: space-between; padding: 34px 36px; }
  }
  .cta-band h2 { font-size: clamp(21px, 2.4vw, 26px); margin-bottom: 8px; }
  .cta-band p { font-size: 14px; color: var(--text-2); }
  .cta-band .cta-actions { display: flex; flex-wrap: wrap; gap: 12px; flex: 0 0 auto; }

  /* ---------- FAQ ---------- */
  .faq-wrap { max-width: 820px; margin: 0 auto; }
  .faq-item {
    background: rgba(255, 255, 255, .04);
    border: 1px solid var(--line);
    border-radius: 16px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color .25s ease, background .25s ease;
  }
  .faq-item:hover { border-color: rgba(31, 182, 255, .45); background: rgba(255, 255, 255, .06); }
  .faq-item summary {
    position: relative;
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 20px 18px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-1);
  }
  .faq-item summary::-webkit-details-marker { display: none; }
  .faq-item summary::before {
    content: "";
    position: absolute;
    left: 0;
    top: 18px;
    bottom: 18px;
    width: 3px;
    border-radius: 0 3px 3px 0;
    background: var(--brand);
  }
  .faq-item summary i { font-size: 13px; color: var(--brand); transition: transform .25s ease; }
  .faq-item[open] summary i { transform: rotate(180deg); }
  .faq-item[open] summary { border-bottom: 1px solid var(--line-soft); }
  .faq-body { padding: 16px 22px 20px 24px; }
  .faq-body p { font-size: 15px; line-height: 1.9; color: var(--text-2); }

  /* ---------- 页脚 ---------- */
  .site-footer {
    margin-top: 20px;
    padding: 54px 0 26px;
    background: #050A14;
    border-top: 1px solid var(--line);
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
  }
  @media (min-width: 640px) {
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
  }
  @media (min-width: 1024px) {
    .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1.1fr; gap: 36px; }
  }
  .footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 17px;
    font-weight: 800;
    color: var(--text-1);
    margin-bottom: 14px;
  }
  .footer-col p { font-size: 14px; color: var(--text-2); line-height: 1.8; }
  .footer-col h4 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-1);
  }
  .footer-links { display: grid; gap: 10px; }
  .footer-links a { font-size: 14px; color: var(--text-2); }
  .footer-links a:hover { color: var(--link); }
  .footer-contact { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
  .footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: var(--text-2);
  }
  .footer-contact i { color: var(--brand); margin-top: 5px; font-size: 13px; }
  .footer-bottom {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: space-between;
    align-items: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--line);
    font-size: 13px;
    color: var(--text-3);
  }

  /* ---------- 响应式导航 ---------- */
  @media (max-width: 1024px) {
    .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
    .nav-links {
      position: absolute;
      top: calc(100% + 12px);
      left: 0;
      right: 0;
      display: none;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 10px;
      margin-left: 0;
      padding: 16px;
      background: rgba(12, 20, 38, .97);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border: 1px solid var(--line);
      border-radius: 18px;
      box-shadow: 0 30px 60px -30px rgba(0, 0, 0, .95);
    }
    .nav-panel.open .nav-links { display: grid; }
    .nav-item { justify-content: flex-start; }
    .nav-right { margin-left: auto; }
  }
  @media (max-width: 520px) {
    .nav-links { grid-template-columns: 1fr; }
    .brand-text span { display: none; }
    .hero-actions .btn { flex: 1 1 100%; }
  }

  /* ---------- 表格移动端堆叠 ---------- */
  @media (max-width: 767px) {
    .table-wrap { overflow: visible; }
    .tier-table {
      min-width: 0;
      display: block;
      background: transparent;
      border: 0;
      border-radius: 0;
    }
    .tier-table thead { display: none; }
    .tier-table tbody,
    .tier-table tr,
    .tier-table th,
    .tier-table td { display: block; width: 100%; }
    .tier-table tbody tr {
      background: rgba(255, 255, 255, .05);
      border: 1px solid var(--line);
      border-radius: 18px;
      padding: 4px 0 10px;
      margin-bottom: 14px;
    }
    .tier-table tbody tr:nth-child(even) { background: rgba(255, 255, 255, .05); }
    .tier-table tbody tr:hover { background: rgba(255, 255, 255, .07); }
    .tier-table tbody th {
      padding: 16px 18px 12px;
      font-size: 18px;
      border-bottom: 1px solid var(--line);
      margin-bottom: 8px;
    }
    .tier-table tbody td {
      display: flex;
      justify-content: space-between;
      align-items: baseline;
      gap: 14px;
      padding: 7px 18px;
      border-bottom: 0;
      font-size: 14px;
      text-align: right;
    }
    .tier-table tbody td::before {
      content: attr(data-label);
      flex: 0 0 auto;
      font-size: 13px;
      color: var(--text-3);
      text-align: left;
    }
  }

/* roulang page: category3 */
:root{
  --bg-base:#070C18;
  --bg-elev-1:#0C1426;
  --bg-elev-2:#101A30;
  --accent:#1FB6FF;
  --violet:#6C4BFF;
  --gold:#FFB020;
  --gold-ink:#1A1206;
  --text:#E8EEF8;
  --text-sub:#A8B6CC;
  --text-weak:#6C7C96;
  --link:#7FD7FF;
  --border:rgba(255,255,255,.10);
  --border-soft:rgba(255,255,255,.06);
  --radius-card:20px;
  --radius-btn:12px;
  --glow:0 18px 40px -24px rgba(31,182,255,.45);
  --shadow-card:0 18px 40px -28px rgba(0,0,0,.9);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--bg-base);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  position:relative;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(560px 420px at 12% -4%, rgba(31,182,255,.16), transparent 70%),
    radial-gradient(520px 420px at 92% 18%, rgba(108,75,255,.14), transparent 72%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;}
a{color:var(--link);text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease);}
a:hover{color:#B6E7FF;text-decoration:underline;}
button{font-family:inherit;}
h1,h2,h3,h4{color:#fff;margin:0;letter-spacing:-.01em;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}
.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;}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);border:1px solid transparent;
  padding:12px 22px;font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn:hover{text-decoration:none;transform:translateY(-2px);}
.btn-primary{background:linear-gradient(120deg,var(--gold),#FFC95C);color:var(--gold-ink);box-shadow:0 12px 28px -16px rgba(255,176,32,.85);}
.btn-primary:hover{box-shadow:0 18px 36px -16px rgba(255,176,32,.95);color:var(--gold-ink);}
.btn-ghost{background:rgba(255,255,255,.05);border-color:var(--border);color:var(--text);}
.btn-ghost:hover{background rgba(255,255,255,.09);background:rgba(255,255,255,.09);border-color:rgba(31,182,255,.45);color:#fff;box-shadow:var(--glow);}
.btn-sm{padding:9px 16px;font-size:14px;}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:60;padding:12px 0 10px;background:linear-gradient(180deg,rgba(7,12,24,.94),rgba(7,12,24,.62) 72%,rgba(7,12,24,0));}
.nav-panel{
  display:flex;align-items:center;gap:16px;position:relative;
  padding:10px 14px;border-radius:20px;
  background:rgba(12,20,38,.82);
  border:1px solid var(--border);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  box-shadow:0 22px 48px -32px rgba(0,0,0,.95), inset 0 1px 0 rgba(255,255,255,.06);
}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:800;color:#04121F;
  background:linear-gradient(140deg,var(--accent),#7FE0FF 60%,var(--violet));
  box-shadow:0 10px 24px -12px rgba(31,182,255,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;color:#fff;font-weight:800;letter-spacing:.01em;}
.brand-text span{font-size:10px;letter-spacing:.22em;color:var(--text-weak);}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-item{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 13px;border-radius:12px;font-size:14px;color:var(--text-sub);
  border:1px solid transparent;text-decoration:none;white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.nav-item i{font-size:13px;color:var(--text-weak);transition:color .2s var(--ease);}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff;border-color:var(--border);text-decoration:none;}
.nav-item:hover i{color:var(--accent);}
.nav-item.active{background:rgba(31,182,255,.13);color:#fff;border-color:rgba(31,182,255,.38);box-shadow: inset 0 0 0 1px rgba(31,182,255,.08);}
.nav-item.active i{color:var(--accent);}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);border:1px solid var(--border);color:var(--text);cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{background:rgba(31,182,255,.14);color:#fff;}

@media(max-width:1023px){
  .nav-links{
    position:absolute;top:calc(100% + 10px);left:0;right:0;margin-left:0;
    display:none;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;padding:12px;
    border-radius:20px;background:rgba(10,17,33,.97);border:1px solid var(--border);
    backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
    box-shadow:0 28px 60px -30px rgba(0,0,0,.95);
  }
  .nav-links.open{display:grid;}
  .nav-toggle{display:inline-flex;}
  .nav-item{justify-content:flex-start;}
}
@media(max-width:767px){
  .nav-right .btn{display:none;}
  .brand-text span{display:none;}
}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-weak);padding:20px 0 0;flex-wrap:wrap;}
.breadcrumb a{color:var(--text-sub);}
.breadcrumb a:hover{color:var(--link);}
.breadcrumb i{font-size:10px;opacity:.6;}
.breadcrumb .current{color:#fff;}

/* ============ 分类矮首屏 ============ */
.cat-hero{padding:8px 0 44px;}
.cat-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;margin-top:26px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  color:#C8EEFF;background:rgba(31,182,255,.12);border:1px solid rgba(31,182,255,.34);
  margin-bottom:18px;
}
.eyebrow i{color:var(--accent);}
.cat-hero h1{font-size:clamp(28px,3.6vw,44px);font-weight:800;line-height:1.28;margin-bottom:16px;}
.cat-hero h1 em{font-style:normal;background:linear-gradient(100deg,var(--accent),#8CE6FF);-webkit-background-clip:text;background-clip:text;color:transparent;}
.cat-hero .lead{font-size:17px;color:var(--text-sub);max-width:30em;margin-bottom:24px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.hero-tags li{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--text-sub);
  padding:6px 12px;border-radius:999px;background:rgba(255,255,255,.04);border:1px solid var(--border);
}
.hero-tags i{color:var(--accent);font-size:12px;}
.cat-hero-media{position:relative;}
.cat-hero-media img{width:100%;height:340px;object-fit:cover;border-radius:20px;border:1px solid var(--border);box-shadow:var(--shadow-card);}
.cat-hero-media::after{
  content:"";position:absolute;inset:auto -6% -14% 12%;height:60%;border-radius:50%;
  background:radial-gradient(closest-side,rgba(31,182,255,.35),transparent 70%);
  filter:blur(60px);z-index:-1;
}
.float-chip{
  position:absolute;left:-14px;bottom:22px;
  display:flex;align-items:center;gap:10px;padding:12px 16px;border-radius:16px;
  background:rgba(12,20,38,.9);border:1px solid var(--border);backdrop-filter:blur(14px);
  box-shadow:var(--glow);font-size:13px;color:var(--text-sub);
}
.float-chip b{font-size:20px;color:#fff;font-variant-numeric:tabular-nums;font-weight:800;}
@media(max-width:1023px){
  .cat-hero-grid{grid-template-columns:1fr;gap:28px;}
  .cat-hero-media img{height:280px;}
  .float-chip{left:12px;}
}

/* ============ 统计条 ============ */
.section{padding:56px 0;}
@media(min-width:768px){.section{padding:84px 0;}}
.section-head{max-width:46em;margin-bottom:36px;}
.section-head h2{font-size:clamp(23px,2.7vw,32px);font-weight:700;line-height:1.35;margin-bottom:12px;}
.section-head p{color:var(--text-sub);font-size:16px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.stats-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  padding:26px 24px;border-radius:var(--radius-card);
  background:linear-gradient(135deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--border);box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.stat{text-align:center;padding:6px 10px;}
.stat + .stat{border-left:1px solid var(--border-soft);}
.stat b{display:block;font-size:clamp(24px,3vw,32px);font-weight:800;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2;}
.stat b span{font-size:14px;color:var(--accent);margin-left:2px;font-weight:600;}
.stat p{font-size:13px;color:var(--text-sub);margin:6px 0 0;}
@media(max-width:767px){
  .stats-strip{grid-template-columns:repeat(2,1fr);}
  .stat:nth-child(3){border-left:none;}
  .stat:nth-child(odd){border-left:none;}
  .stat:nth-child(n+3){border-top:1px solid var(--border-soft);padding-top:16px;}
}

/* ============ 能力图标网格 4x2 ============ */
.cap-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.cap-card{
  position:relative;padding:22px 20px 24px;border-radius:18px;
  background:rgba(255,255,255,.045);border:1px solid var(--border);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.cap-card:hover{transform:translateY(-4px);border-color:rgba(31,182,255,.42);box-shadow:var(--glow);}
.cap-icon{
  width:46px;height:46px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;color:var(--accent);
  background:rgba(31,182,255,.12);border:1px solid rgba(31,182,255,.3);
  margin-bottom:16px;
}
.cap-card h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.cap-card p{font-size:14px;line-height:1.7;color:var(--text-sub);margin:0;}
@media(max-width:1023px){.cap-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:559px){.cap-grid{grid-template-columns:1fr;}}

/* ============ 横向滚动卡片带 ============ */
.rail-wrap{position:relative;}
.rail{
  display:flex;gap:18px;overflow-x:auto;padding:4px 4px 20px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.rail::-webkit-scrollbar{height:8px;}
.rail::-webkit-scrollbar-track{background:rgba(255,255,255,.05);border-radius:999px;}
.rail::-webkit-scrollbar-thumb{background:rgba(31,182,255,.45);border-radius:999px;}
.rail-card{
  flex:0 0 300px;scroll-snap-align:start;border-radius:18px;overflow:hidden;
  background:rgba(255,255,255,.045);border:1px solid var(--border);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.rail-card:hover{transform:translateY(-4px);border-color:rgba(31,182,255,.42);box-shadow:var(--glow);}
.rail-card img{width:100%;height:150px;object-fit:cover;}
.rail-body{padding:18px 18px 20px;}
.rail-body .badge{margin-bottom:10px;}
.rail-body h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.rail-body p{font-size:14px;line-height:1.7;color:var(--text-sub);margin:0;}
.rail-hint{font-size:13px;color:var(--text-weak);display:flex;align-items:center;gap:8px;margin-top:2px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;
  font-size:12px;font-weight:600;color:#C8EEFF;background:rgba(31,182,255,.13);
  border:1px solid rgba(31,182,255,.32);
}
.badge.gold{color:#FFE0A8;background:rgba(255,176,32,.14);border-color:rgba(255,176,32,.4);}
.badge.violet{color:#D6CBFF;background:rgba(108,75,255,.16);border-color:rgba(108,75,255,.4);}

/* ============ CTA 条 ============ */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:30px 32px;border-radius:20px;
  background:linear-gradient(120deg,rgba(255,176,32,.14),rgba(31,182,255,.10) 70%);
  border:1px solid rgba(255,176,32,.42);
  box-shadow:0 24px 56px -34px rgba(255,176,32,.85), inset 0 1px 0 rgba(255,255,255,.08);
}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;margin-bottom:10px;}
.cta-list{display:flex;flex-wrap:wrap;gap:16px;font-size:14px;color:var(--text-sub);}
.cta-list li{display:inline-flex;align-items:center;gap:8px;}
.cta-list i{color:var(--gold);}
@media(max-width:767px){.cta-band{padding:24px 20px;}.cta-band .btn{width:100%;}}

/* ============ FAQ ============ */
.faq-list{max-width:820px;margin:0 auto;}
.faq-item{
  border-radius:16px;background:rgba(255,255,255,.04);border:1px solid var(--border);
  margin-bottom:14px;overflow:hidden;transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item:hover{border-color:rgba(31,182,255,.4);box-shadow:var(--glow);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;display:flex;align-items:center;gap:14px;
  position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,var(--accent),var(--violet));
}
.faq-item summary h3{font-size:16px;font-weight:700;line-height:1.6;flex:1;}
.faq-item summary .chev{color:var(--text-weak);font-size:13px;transition:transform .25s var(--ease);}
.faq-item[open] summary .chev{transform:rotate(180deg);color:var(--accent);}
.faq-body{padding:0 22px 20px 22px;font-size:15px;line-height:1.9;color:var(--text-sub);}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:40px;border-top:1px solid var(--border);
  background:#050912;position:relative;z-index:1;
}
.footer-grid{
  display:grid;grid-template-columns:1.3fr 1fr 1fr 1.1fr;gap:36px;
  padding:56px 0 36px;
}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff;margin-bottom:14px;}
.footer-brand .brand-mark{width:34px;height:34px;font-size:16px;border-radius:10px;}
.footer-col p{font-size:14px;line-height:1.8;color:var(--text-sub);margin:0;}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:#fff;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--text-sub);}
.footer-links a:hover{color:var(--link);}
.footer-contact{display:flex;flex-direction:column;gap:12px;}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-sub);line-height:1.7;}
.footer-contact i{color:var(--accent);margin-top:4px;font-size:13px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:18px 0 26px;border-top:1px solid var(--border-soft);
  font-size:13px;color:var(--text-weak);
}
@media(max-width:1023px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:30px;}}
@media(max-width:559px){
  .footer-grid{grid-template-columns:1fr;padding:40px 0 26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}

/* roulang page: category4 */
:root{
  --bg-base:#070C18;
  --bg-elev-1:#0C1426;
  --bg-elev-2:#101B33;
  --aurora:#1FB6FF;
  --violet:#6C4BFF;
  --amber:#FFB020;
  --amber-ink:#1A1206;
  --text-1:#E8EEF8;
  --text-2:#A8B6CC;
  --text-3:#6C7C96;
  --link:#7FD7FF;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --r-card:18px;
  --r-btn:12px;
  --r-pill:999px;
  --shadow-glow:0 18px 40px -24px rgba(31,182,255,.45);
  --shadow-amber:0 18px 44px -22px rgba(255,176,32,.55);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background-color:var(--bg-base);
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px),
    radial-gradient(700px 420px at 12% -6%,rgba(31,182,255,.16),transparent 62%),
    radial-gradient(620px 400px at 92% 6%,rgba(108,75,255,.14),transparent 60%);
  background-size:24px 24px,24px 24px,auto,auto;
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--link);text-decoration:none;transition:color .2s ease}
a:hover{color:#A6E4FF;text-decoration:underline}
button{font-family:inherit}
input,select,textarea{font-family:inherit;font-size:15px}
:focus-visible{outline:2px solid var(--aurora);outline-offset:3px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.container{padding-left:32px;padding-right:32px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  padding:12px 0;
  background:linear-gradient(180deg,rgba(7,12,24,.92),rgba(7,12,24,.55) 70%,rgba(7,12,24,0));
  backdrop-filter:blur(6px);
}
.nav-panel{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  padding:10px 14px;
  border-radius:20px;
  background:rgba(12,20,38,.82);
  border:1px solid var(--line);
  box-shadow:0 16px 40px -30px rgba(0,0,0,.9),inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(20px);
}
.brand{display:flex;align-items:center;gap:10px;color:var(--text-1);flex:0 0 auto}
.brand:hover{color:var(--text-1);text-decoration:none}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  display:grid;place-items:center;
  font-weight:800;font-size:18px;color:#04121D;
  background:linear-gradient(135deg,var(--aurora),#7FE0FF 55%,var(--violet));
  box-shadow:0 10px 26px -14px rgba(31,182,255,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.16}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.2px}
.brand-text span{font-size:10.5px;letter-spacing:.22em;color:var(--text-3)}
.nav-links{display:flex;align-items:center;gap:8px;flex:1 1 auto;flex-wrap:wrap}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 13px;border-radius:12px;
  font-size:14px;font-weight:600;color:var(--text-2);
  background:rgba(255,255,255,.03);
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
  white-space:nowrap;
}
.nav-item i{font-size:13px;color:var(--text-3);transition:color .2s ease}
.nav-item:hover{background:rgba(31,182,255,.12);color:#DFF3FF;border-color:rgba(31,182,255,.32);text-decoration:none;transform:translateY(-1px)}
.nav-item:hover i{color:var(--aurora)}
.nav-item.active{background:rgba(31,182,255,.16);color:#EAF8FF;border-color:rgba(31,182,255,.5);box-shadow:inset 0 1px 0 rgba(255,255,255,.08)}
.nav-item.active i{color:var(--aurora)}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;cursor:pointer;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-1);
  transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:rgba(31,182,255,.15);border-color:rgba(31,182,255,.4)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1.2;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn-primary{
  background:linear-gradient(135deg,#FFC košt 0%,var(--amber) 40%,#FF9E2C 100%);
  background:linear-gradient(135deg,#FFD27A 0%,var(--amber) 45%,#FF9E2C 100%);
  color:var(--amber-ink);
  box-shadow:var(--shadow-amber);
}
.btn-primary:hover{box-shadow:0 22px 50px -20px rgba(255,176,32,.75);color:var(--amber-ink)}
.btn-ghost{
  background:rgba(255,255,255,.05);
  border-color:var(--line);
  color:var(--text-1);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(31,182,255,.14);border-color:rgba(31,182,255,.45);color:#EAF8FF}
.btn-aurora{
  background:linear-gradient(135deg,var(--aurora),#4FC9FF 60%,var(--violet));
  color:#04121D;
  box-shadow:var(--shadow-glow);
}
.btn-aurora:hover{color:#04121D;box-shadow:0 22px 50px -20px rgba(31,182,255,.85)}
.btn-sm{padding:9px 16px;font-size:13.5px;border-radius:11px;font-weight:700}

/* ============ 标签 / 徽章 ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(31,182,255,.12);color:#9FE0FF;border:1px solid rgba(31,182,255,.28);
}
.tag-amber{background:rgba(255,176,32,.14);color:#FFD08A;border-color:rgba(255,176,32,.34)}
.tag-violet{background:rgba(108,75,255,.16);color:#C6B8FF;border-color:rgba(108,75,255,.36)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;color:#BFE9FF;
  background:rgba(31,182,255,.10);
  border:1px solid rgba(31,182,255,.26);
}
.eyebrow i{color:var(--aurora)}

/* ============ 页面通用板块 ============ */
.section{padding:64px 0}
@media(min-width:768px){.section{padding:88px 0}}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.35;letter-spacing:-.01em}
.section-head p{margin-top:12px;color:var(--text-2);font-size:15.5px}
.h2-bar{display:inline-flex;align-items:center;gap:10px}
.h2-bar::before{content:"";width:4px;height:22px;border-radius:2px;background:linear-gradient(180deg,var(--aurora),var(--violet))}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--link)}
.breadcrumb i{font-size:10px;color:var(--text-3)}
.breadcrumb span{color:#BFE9FF}

/* ============ 矮 Hero ============ */
.page-hero{
  position:relative;
  padding:26px 0 56px;
  background-image:linear-gradient(180deg,rgba(7,12,24,.72),rgba(7,12,24,.94)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line-soft);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,182,255,.28),transparent 68%);
  filter:blur(90px);pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;position:relative;z-index:1}
.page-hero h1{
  margin-top:16px;
  font-size:clamp(28px,4vw,44px);
  font-weight:800;line-height:1.28;letter-spacing:-.01em;
}
.page-hero h1 em{font-style:normal;color:var(--aurora)}
.hero-sub{margin-top:14px;font-size:17px;color:var(--text-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-stats{display:flex;flex-wrap:wrap;gap:26px;margin-top:30px}
.hero-stat strong{display:block;font-size:24px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2}
.hero-stat span{font-size:12.5px;color:var(--text-3)}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;height:280px;object-fit:cover;border-radius:20px;
  border:1px solid var(--line);
  box-shadow:0 30px 70px -40px rgba(31,182,255,.6);
}
.float-card{
  position:absolute;left:-8px;bottom:-18px;
  display:flex;align-items:center;gap:10px;
  padding:12px 16px;border-radius:16px;
  background:rgba(12,20,38,.9);border:1px solid var(--line);
  box-shadow:0 20px 46px -28px rgba(31,182,255,.9);
  backdrop-filter:blur(14px);
}
.float-card i{color:var(--amber);font-size:18px}
.float-card strong{display:block;font-size:14px;font-weight:700}
.float-card span{font-size:11.5px;color:var(--text-3)}
@media(min-width:992px){
  .hero-grid{grid-template-columns:1.15fr .85fr;gap:48px}
  .page-hero{padding:34px 0 76px}
  .hero-visual img{height:330px}
}

/* ============ 数据要点条 ============ */
.facts{
  display:grid;grid-template-columns:repeat(2,1fr);gap:14px;
}
@media(min-width:900px){.facts{grid-template-columns:repeat(4,1fr);gap:18px}}
.fact{
  padding:20px;border-radius:var(--r-card);
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 var(--line-soft);
  transition:border-color .25s ease,transform .25s ease,background .25s ease;
}
.fact:hover{border-color:rgba(31,182,255,.45);transform:translateY(-3px);background:rgba(31,182,255,.07)}
.fact strong{display:block;font-size:26px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2}
.fact span{display:block;margin-top:6px;font-size:13px;color:var(--text-3)}
.fact i{color:var(--aurora);font-size:16px;margin-bottom:10px;display:inline-block}

/* ============ 时间轴 ============ */
.timeline{position:relative;padding-left:0;max-width:900px}
.timeline::before{
  content:"";position:absolute;left:23px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,rgba(31,182,255,.85),rgba(108,75,255,.5),rgba(31,182,255,0));
}
.tl-item{position:relative;display:grid;grid-template-columns:48px 1fr;gap:18px;padding-bottom:22px}
.tl-item:last-child{padding-bottom:0}
.tl-node{
  width:48px;height:48px;border-radius:14px;
  display:grid;place-items:center;
  font-size:14px;font-weight:800;color:#BFE9FF;
  background:rgba(12,20,38,.95);
  border:1px solid rgba(31,182,255,.42);
  box-shadow:0 0 0 5px rgba(7,12,24,.95),0 12px 30px -18px rgba(31,182,255,.95);
  font-variant-numeric:tabular-nums;
  z-index:1;
}
.tl-card{
  padding:20px 22px;border-radius:var(--r-card);
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 var(--line-soft);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.tl-card:hover{border-color:rgba(31,182,255,.5);transform:translateY(-3px);box-shadow:var(--shadow-glow)}
.tl-card h3{font-size:18px;font-weight:700;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tl-card p{margin-top:9px;font-size:14.5px;color:var(--text-2);line-height:1.8}
.tl-card .tag{margin-top:12px}
@media(min-width:768px){
  .timeline::before{left:27px}
  .tl-item{grid-template-columns:56px 1fr;gap:22px}
  .tl-node{width:56px;height:56px;font-size:15px}
}

/* ============ 图文卡片流（两列错落） ============ */
.flow-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media(min-width:900px){
  .flow-grid{grid-template-columns:1fr 1fr;gap:26px;align-items:start}
  .flow-col-2{margin-top:64px}
}
.flow-card{
  border-radius:20px;overflow:hidden;
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 var(--line-soft);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.flow-card:hover{border-color:rgba(31,182,255,.45);transform:translateY(-4px);box-shadow:var(--shadow-glow)}
.flow-card img{width:100%;height:196px;object-fit:cover;border-bottom:1px solid var(--line-soft)}
.flow-body{padding:20px 22px 24px}
.flow-body h3{font-size:18.5px;font-weight:700;line-height:1.45}
.flow-body p{margin-top:10px;font-size:14.5px;color:var(--text-2);line-height:1.8}
.flow-list{margin-top:14px;display:grid;gap:8px}
.flow-list li{display:flex;gap:9px;font-size:13.5px;color:var(--text-2)}
.flow-list i{color:var(--aurora);font-size:12px;margin-top:6px}
.flow-meta{margin-top:16px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12px;color:var(--text-3)}

/* ============ 中部 CTA 条 ============ */
.cta-band{
  position:relative;border-radius:22px;padding:30px 26px;
  background:linear-gradient(135deg,rgba(255,176,32,.10),rgba(31,182,255,.07) 55%,rgba(108,75,255,.10));
  border:1px solid rgba(255,176,32,.42);
  box-shadow:var(--shadow-amber),inset 0 1px 0 rgba(255,255,255,.08);
  display:flex;flex-direction:column;gap:20px;
}
.cta-band h3{font-size:clamp(20px,2.4vw,26px);font-weight:800;line-height:1.4}
.cta-band p{margin-top:10px;color:var(--text-2);font-size:14.5px;max-width:640px}
.cta-points{display:flex;flex-wrap:wrap;gap:14px;margin-top:14px}
.cta-points span{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;color:#E4EEF9}
.cta-points i{color:var(--amber);font-size:12px}
.cta-band .btn{flex:0 0 auto}
@media(min-width:900px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:36px 40px;gap:34px}
}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:20px;
  padding:56px 0 26px;
  background:linear-gradient(180deg,rgba(4,8,16,.2),rgba(4,8,16,.92));
  border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:16px;border-radius:10px}
.footer-col p{font-size:13.5px;color:var(--text-3);line-height:1.85;max-width:330px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.02em}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:13.5px;color:var(--text-2)}
.footer-links a:hover{color:var(--link)}
.footer-contact{display:grid;gap:11px}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;color:var(--text-2);align-items:flex-start}
.footer-contact i{color:var(--aurora);font-size:12px;margin-top:7px}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line-soft);
  display:flex;flex-direction:column;gap:8px;
  font-size:12.5px;color:var(--text-3);
}
@media(min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between}}

/* ============ 移动端导航抽屉 ============ */
@media(max-width:1023px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-links{
    order:3;width:100%;display:none;grid-template-columns:1fr 1fr;gap:8px;
    padding:12px;margin-top:6px;border-radius:16px;
    background:rgba(9,15,30,.96);border:1px solid var(--line);
  }
  .nav-links.open{display:grid}
  .nav-item{justify-content:flex-start;padding:11px 12px}
  .nav-right .btn{display:none}
}
@media(min-width:1024px){
  .nav-links{justify-content:center}
}
@media(min-width:1180px){
  .nav-right .btn{display:inline-flex}
}