/* roulang page: index */
:root{
  --ink-900:#0B0D0F;
  --ink-800:#14171B;
  --ink-700:#1C2026;
  --line:#262B33;
  --paper:#F5F5F1;
  --paper-2:#FFFFFF;
  --text-strong:#14171B;
  --text-muted:#5E646E;
  --line-light:#E3E4DE;
  --volt:#C9F45B;
  --ember:#FF6B35;
  --volt-dim:rgba(201,244,91,.14);
  --ember-dim:rgba(255,107,53,.16);
  --ok:#3FBF7F;
  --warn:#E4572E;
  --r-card:18px;
  --r-btn:999px;
  --shadow-soft:0 20px 40px -24px rgba(10,12,14,.18);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:#E9EBE8;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
.num{font-family:"Inter","Space Grotesk",system-ui,sans-serif;font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 48px;}}

.section{padding:72px 0;}
@media (min-width:1024px){.section{padding:112px 0;}}
.section-dark{background:var(--ink-900);}
.section-deep{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-paper{background:var(--paper);color:var(--text-strong);}
.section-paper .muted{color:var(--text-muted);}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--volt);font-weight:600;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--volt);display:inline-block;}
.section-head{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:space-between;margin-bottom:40px;}
.section-head h2{
  font-size:clamp(26px,3.4vw,42px);line-height:1.16;font-weight:700;letter-spacing:-.02em;margin-top:14px;
}
.section-head p{max-width:640px;color:#9BA2AC;margin-top:12px;font-size:16px;}
.section-paper .section-head p{color:var(--text-muted);}
.link-more{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--volt);
  border-bottom:1px solid transparent;transition:border-color .3s ease;
}
.link-more i{transition:transform .3s ease;}
.link-more:hover{border-color:var(--volt);}
.link-more:hover i{transform:translateX(4px);}
.section-paper .link-more{color:#B4481B;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:var(--r-btn);border:1px solid transparent;
  padding:14px 28px;font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;transition:background .28s ease,color .28s ease,border-color .28s ease,transform .18s ease;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--volt);outline-offset:3px;}
.btn-primary{background:var(--volt);color:var(--ink-900);}
.btn-primary:hover{background:transparent;color:var(--volt);border-color:var(--volt);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:#F2F4F0;border-color:var(--line);}
.btn-ghost:hover{border-color:var(--volt);color:var(--volt);}
.btn-sm{padding:11px 20px;font-size:13.5px;}
.btn-ember{background:var(--ember);color:#fff;}
.btn-ember:hover{background:transparent;color:var(--ember);border-color:var(--ember);}
.btn-block{width:100%;}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.03em;line-height:1;
  padding:6px 12px;border-radius:999px;
  background:var(--volt-dim);color:var(--volt);border:1px solid rgba(201,244,91,.28);
}
.badge-live{background:var(--ember);color:#fff;border-color:var(--ember);}
.badge-live .dot{width:6px;height:6px;border-radius:50%;background:#fff;animation:pulse 2s infinite;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.35;transform:scale(.82);}}
.badge-soft{background:rgba(255,255,255,.05);color:#B9C0C9;border-color:var(--line);}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .35s ease,border-color .35s ease,backdrop-filter .35s ease;
}
.site-header.is-scrolled{
  background:rgba(11,13,15,.92);
  border-bottom-color:var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:74px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:var(--volt);color:var(--ink-900);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:14px;letter-spacing:-.02em;
  font-family:"Inter","Space Grotesk",system-ui,sans-serif;
}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-.02em;color:#fff;}
.brand-text span{color:var(--volt);}
.nav-main{display:none;align-items:center;gap:4px;}
@media (min-width:1024px){.nav-main{display:flex;}}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:10px 14px;font-size:14.5px;font-weight:500;color:#C6CCD3;
  border-radius:10px;transition:color .25s ease,background .25s ease;
  background:none;border:0;cursor:pointer;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:1.5px;
  background:var(--volt);transform:scaleX(0);transform-origin:left;transition:transform .3s ease;
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:#fff;font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-mega{position:relative;}
.nav-mega[data-open="true"] .mega-toggle{color:#fff;}
.nav-mega[data-open="true"] .mega-toggle i{transform:rotate(180deg);}
.mega-toggle i{font-size:10px;transition:transform .25s ease;}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:760px;
  background:var(--ink-800);border:1px solid var(--line);border-radius:20px;
  padding:28px;display:grid;grid-template-columns:1.05fr 1fr;gap:28px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
  box-shadow:0 30px 60px -30px rgba(0,0,0,.8);
}
.nav-mega[data-open="true"] .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col-title{font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:#7C848F;margin-bottom:16px;font-weight:600;}
.mega-links{display:grid;gap:6px;}
.mega-link{
  display:flex;align-items:flex-start;gap:12px;padding:11px 12px;border-radius:12px;
  border:1px solid transparent;transition:background .25s ease,border-color .25s ease,transform .25s ease;
}
.mega-link:hover{background:rgba(255,255,255,.04);border-color:var(--line);transform:translateX(3px);}
.mega-link .ml-ico{
  width:30px;height:30px;border-radius:9px;background:var(--volt-dim);color:var(--volt);
  display:flex;align-items:center;justify-content:center;font-size:13px;flex-shrink:0;margin-top:2px;
}
.mega-link b{display:block;font-size:14px;font-weight:600;color:#F0F2EE;}
.mega-link small{display:block;font-size:12.5px;color:#8B929C;line-height:1.6;}
.mega-post{display:block;padding:10px 0;border-bottom:1px solid var(--line);}
.mega-post:last-of-type{border-bottom:0;}
.mega-post b{display:block;font-size:13.5px;font-weight:500;color:#DDE1DE;line-height:1.55;}
.mega-post:hover b{color:var(--volt);}
.mega-post span{font-size:12px;color:#767D87;}
.mega-card{
  margin-top:18px;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  display:flex;gap:12px;padding:12px;align-items:center;background:var(--ink-700);
}
.mega-card img{width:76px;height:54px;object-fit:cover;border-radius:9px;flex-shrink:0;}
.mega-card b{font-size:13.5px;display:block;line-height:1.5;}
.mega-card small{color:#8B929C;font-size:12px;}

.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-actions .btn-primary{display:none;}
@media (min-width:768px){.nav-actions .btn-primary{display:inline-flex;}}
.nav-burger{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);color:#fff;display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:border-color .25s ease,color .25s ease;
}
.nav-burger:hover{border-color:var(--volt);color:var(--volt);}
@media (min-width:1024px){.nav-burger{display:none;}}

.drawer-mask{
  position:fixed;inset:0;background:rgba(6,8,9,.7);backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:98;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,88vw);z-index:99;
  background:var(--ink-800);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .34s cubic-bezier(.2,.7,.2,1);
  display:flex;flex-direction:column;padding:22px 22px 26px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-close{
  width:38px;height:38px;border-radius:11px;border:1px solid var(--line);background:none;
  color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;
}
.drawer-close:hover{border-color:var(--volt);color:var(--volt);}
.drawer-nav{display:grid;gap:6px;}
.drawer-nav a{
  font-size:19px;font-weight:600;padding:13px 12px;border-radius:12px;color:#E4E7E3;
  border:1px solid transparent;transition:background .25s ease,border-color .25s ease;
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:rgba(255,255,255,.04);border-color:var(--line);color:var(--volt);}
.drawer-sub{padding-left:14px;display:grid;gap:2px;margin-top:4px;}
.drawer-sub a{font-size:14.5px;font-weight:500;color:#9BA2AC;padding:9px 12px;}
.drawer-sub a:hover{color:var(--volt);}
.drawer-cta{margin-top:auto;padding-top:26px;}

/* ============ Hero ============ */
.hero{
  position:relative;padding:120px 0 64px;
  background-image:linear-gradient(180deg,rgba(11,13,15,.72) 0%,rgba(11,13,15,.86) 60%,rgba(11,13,15,.97) 100%),url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
  overflow:hidden;
}
@media (min-width:1024px){.hero{padding:164px 0 90px;}}
.hero-grid{display:grid;gap:48px;align-items:center;}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.12fr .88fr;gap:64px;}}
.hero h1{
  font-size:clamp(38px,5.6vw,74px);line-height:1.05;font-weight:800;letter-spacing:-.03em;
  margin:20px 0 0;color:#fff;
}
.hero h1 em{font-style:normal;color:var(--volt);}
.hero-sub{
  margin-top:22px;font-size:17px;line-height:1.85;color:#AFB6BE;max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:34px;font-size:13px;color:#8B929C;}
.hero-meta span{display:inline-flex;align-items:center;gap:8px;}
.hero-meta i{color:var(--volt);}

.live-card{
  position:relative;border:1px solid var(--line);border-radius:22px;overflow:hidden;
  background:var(--ink-800);box-shadow:0 40px 80px -40px rgba(0,0,0,.9);
}
.live-card img{width:100%;aspect-ratio:16/9;object-fit:cover;filter:brightness(.86) saturate(.95);}
.live-card-body{padding:22px 22px 24px;}
.live-card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.live-card h3{font-size:19px;font-weight:600;color:#fff;margin-top:14px;line-height:1.5;}
.live-card p{font-size:13.5px;color:#959CA6;margin-top:8px;}
.ticks{display:flex;gap:4px;margin-top:16px;}
.ticks i{flex:1;height:3px;border-radius:2px;background:var(--line);display:block;}
.ticks i.on{background:var(--volt);}
.live-float{
  position:absolute;left:22px;bottom:22px;right:22px;
  background:rgba(11,13,15,.86);border:1px solid var(--line);border-radius:14px;
  padding:12px 14px;display:flex;align-items:center;justify-content:space-between;gap:12px;
  backdrop-filter:blur(8px);
}
.live-float b{font-size:13px;color:#fff;display:block;}
.live-float small{font-size:11.5px;color:#8B929C;}

/* ============ 倒计时 ============ */
.countdown-strip{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--ink-800);
}
.countdown-inner{display:grid;gap:0;grid-template-columns:repeat(2,1fr);}
@media (min-width:1024px){.countdown-inner{grid-template-columns:repeat(4,1fr) 1.35fr;}}
.cd-cell{
  padding:26px 20px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  text-align:center;
}
@media (min-width:1024px){.cd-cell{border-bottom:0;}}
.cd-cell:last-child{border-right:0;}
.cd-num{font-size:clamp(30px,4vw,46px);font-weight:800;letter-spacing:-.03em;color:var(--volt);line-height:1;}
.cd-unit{display:block;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:#8B929C;margin-top:10px;}
.cd-note{
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:6px;
  padding:26px 24px;text-align:center;border-bottom:1px solid var(--line);
}
@media (min-width:1024px){.cd-note{border-bottom:0;}}
.cd-note b{font-size:22px;color:#fff;font-weight:700;}
.cd-note span{font-size:13px;color:#8B929C;}

/* ============ 卡片 ============ */
.card{
  background:var(--ink-800);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:transform .35s cubic-bezier(.2,.7,.2,1),border-color .35s ease,box-shadow .35s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--volt);box-shadow:0 24px 50px -30px rgba(201,244,91,.35);}
.card-media{position:relative;overflow:hidden;display:block;background:var(--ink-700);}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;filter:brightness(.88);transition:transform .6s cubic-bezier(.2,.7,.2,1);}
.card:hover .card-media img{transform:scale(1.04);}
.card-media .badge{position:absolute;top:14px;left:14px;z-index:2;}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-meta{font-size:12.5px;color:#8B929C;display:flex;flex-wrap:wrap;gap:10px;align-items:center;letter-spacing:.02em;}
.card-meta i{color:var(--volt);font-size:11px;}
.card h3{font-size:19px;font-weight:600;line-height:1.5;color:#fff;}
.card p{font-size:14.5px;color:#98A0AA;line-height:1.8;}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{margin-top:auto;padding-top:8px;}

.wide-card{grid-column:span 1;}
@media (min-width:1024px){
  .grid-schedule{grid-template-columns:repeat(2,1fr);}
  .wide-card{grid-column:span 2;}
  .wide-card .card-media img{aspect-ratio:21/9;}
}

/* ============ 看点列表 ============ */
.points{border-top:1px solid var(--line);}
.point-row{
  display:grid;grid-template-columns:64px 1fr;gap:20px;align-items:start;
  padding:28px 4px;border-bottom:1px solid var(--line);
  transition:transform .3s ease,padding .3s ease;
}
@media (min-width:768px){.point-row{grid-template-columns:110px 1fr;gap:34px;padding:34px 8px;}}
.point-row:hover{transform:translateX(8px);}
.point-num{
  font-size:clamp(30px,4.4vw,48px);font-weight:800;letter-spacing:-.04em;color:var(--volt);
  line-height:1;font-family:"Inter","Space Grotesk",system-ui,sans-serif;
}
.point-row h3{font-size:20px;font-weight:600;color:#fff;line-height:1.5;}
.point-row p{font-size:14.5px;color:#9199A3;margin-top:8px;max-width:760px;}
.point-row span.tag{
  display:inline-block;margin-left:10px;font-size:11.5px;letter-spacing:.08em;
  color:var(--volt);background:var(--volt-dim);padding:3px 9px;border-radius:999px;vertical-align:middle;
}

/* ============ 服务条带 ============ */
.feature-strip{display:grid;gap:0;border-top:1px solid var(--line);}
.feature-row{
  display:grid;gap:24px;padding:36px 0;border-bottom:1px solid var(--line);align-items:center;
}
@media (min-width:900px){
  .feature-row{grid-template-columns:88px 1fr 340px;gap:40px;padding:44px 0;}
  .feature-row.flip{grid-template-columns:88px 340px 1fr;}
  .feature-row.flip .feature-media{order:2;}
  .feature-row.flip .feature-text{order:3;}
}
.feature-idx{font-size:13px;letter-spacing:.16em;color:#6E7681;font-weight:600;}
.feature-text h3{font-size:22px;font-weight:600;color:#fff;line-height:1.5;}
.feature-text p{color:#9199A3;font-size:15px;margin-top:10px;}
.feature-media{border-radius:16px;overflow:hidden;border:1px solid var(--line);}
.feature-media img{width:100%;aspect-ratio:16/10;object-fit:cover;filter:brightness(.86);transition:transform .6s ease;}
.feature-media:hover img{transform:scale(1.04);}

/* ============ 数据条 ============ */
.stats{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line);}
@media (min-width:900px){.stats{grid-template-columns:repeat(4,1fr);}}
.stat{
  padding:34px 22px;border-bottom:1px solid var(--line);border-right:1px solid var(--line);
}
@media (min-width:900px){.stat{border-bottom:0;}}
.stat:nth-child(2n){border-right:0;}
@media (min-width:900px){.stat:nth-child(2n){border-right:1px solid var(--line);}.stat:last-child{border-right:0;}}
.stat b{display:block;font-size:clamp(30px,4.6vw,52px);font-weight:800;letter-spacing:-.03em;color:#fff;line-height:1;}
.stat b i{font-style:normal;color:var(--volt);font-size:.5em;margin-left:4px;font-weight:700;}
.stat span{display:block;margin-top:12px;font-size:13.5px;color:#8B929C;}

/* ============ 浅色内容区 ============ */
.paper-card{
  background:var(--paper-2);border:1px solid var(--line-light);border-radius:var(--r-card);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
  box-shadow:var(--shadow-soft);
  transition:transform .35s cubic-bezier(.2,.7,.2,1),border-color .35s ease;
}
.paper-card:hover{transform:translateY(-4px);border-color:#C9CFC3;}
.paper-card .card-media img{filter:none;}
.paper-card h3{color:var(--text-strong);font-size:18px;}
.paper-card p{color:var(--text-muted);font-size:14.5px;}
.paper-meta{font-size:12.5px;color:#8A919B;display:flex;gap:10px;flex-wrap:wrap;align-items:center;}
.chip{
  display:inline-block;font-size:12px;font-weight:600;padding:5px 11px;border-radius:999px;
  background:#EAEDDF;color:#4C5A17;
}
.empty-state{
  border:1px dashed var(--line-light);border-radius:var(--r-card);padding:52px 24px;text-align:center;
  color:var(--text-muted);background:#FBFBF8;
}
.empty-state i{font-size:26px;color:#B9C08F;display:block;margin-bottom:14px;}
.empty-state a{color:#B4481B;font-weight:600;border-bottom:1px solid rgba(180,72,27,.4);}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:none;border:0;text-align:left;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 4px;font-size:18px;font-weight:600;color:#F0F2EE;line-height:1.6;
}
.faq-q:hover{color:var(--volt);}
.faq-q .ic{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--volt);font-size:12px;
  transition:transform .3s ease,border-color .3s ease;
}
.faq-item.is-open .faq-q .ic{transform:rotate(45deg);border-color:var(--volt);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.faq-a p{padding:0 4px 26px;color:#98A0AA;font-size:15px;line-height:1.85;max-width:820px;}

/* ============ CTA + 表单 ============ */
.cta-band{
  background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:64px 0;
}
@media (min-width:1024px){.cta-band{padding:84px 0;}}
.cta-grid{display:grid;gap:34px;align-items:center;}
@media (min-width:1024px){.cta-grid{grid-template-columns:1fr 1fr;gap:64px;}}
.cta-band h2{font-size:clamp(26px,3.4vw,38px);font-weight:700;letter-spacing:-.02em;color:#fff;line-height:1.2;}
.cta-band p{color:#9199A3;margin-top:14px;font-size:15.5px;}
.subscribe-form{display:flex;gap:12px;flex-wrap:wrap;}
.subscribe-form input{
  flex:1;min-width:220px;height:50px;padding:0 20px;border-radius:var(--r-btn);
  background:var(--ink-700);border:1px solid var(--line);color:#fff;font-size:15px;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.subscribe-form input::placeholder{color:#6E7681;}
.subscribe-form input:focus{outline:none;border-color:var(--volt);box-shadow:0 0 0 2px rgba(201,244,91,.18);}
.form-hint{font-size:12.5px;color:#767D87;margin-top:14px;}
.form-status{font-size:13.5px;margin-top:12px;display:none;}
.form-status.ok{display:block;color:var(--ok);}
.form-status.err{display:block;color:var(--warn);}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);border-top:1px solid var(--line);padding:64px 0 0;}
.footer-grid{display:grid;gap:40px;padding-bottom:48px;}
@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 1.3fr;}}
.footer-brand p{color:#8B929C;font-size:14px;margin-top:16px;max-width:300px;}
.footer-title{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:#6E7681;font-weight:600;margin-bottom:18px;}
.footer-links{display:grid;gap:11px;}
.footer-links a{font-size:14.5px;color:#A7AEB7;transition:color .25s ease;}
.footer-links a:hover{color:var(--volt);}
.footer-contact{display:grid;gap:11px;font-size:14.5px;color:#A7AEB7;}
.footer-contact i{color:var(--volt);width:18px;}
.footer-form{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap;}
.footer-form input{
  flex:1;min-width:170px;height:44px;padding:0 16px;border-radius:var(--r-btn);
  background:var(--ink-700);border:1px solid var(--line);color:#fff;font-size:14px;
}
.footer-form input::placeholder{color:#6E7681;}
.footer-form input:focus{outline:none;border-color:var(--volt);box-shadow:0 0 0 2px rgba(201,244,91,.16);}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0;display:flex;flex-wrap:wrap;gap:14px;
  justify-content:space-between;align-items:center;font-size:13px;color:#767D87;
}
.footer-bottom a{color:#8B929C;}
.footer-bottom a:hover{color:var(--volt);}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s cubic-bezier(.2,.7,.2,1),transform .6s cubic-bezier(.2,.7,.2,1);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  *{animation:none !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
    --ink-900:#0B0D0F;
    --ink-800:#14171B;
    --ink-700:#1C2026;
    --line:#262B33;
    --paper:#F5F5F1;
    --paper-2:#FFFFFF;
    --text-strong:#14171B;
    --text-muted:#5E646E;
    --line-light:#E3E4DE;
    --volt:#C9F45B;
    --ember:#FF6B35;
    --volt-dim:rgba(201,244,91,.14);
    --ok:#3FBF7F;
    --warn:#E4572E;
    --radius:18px;
    --radius-sm:12px;
    --container:1240px;
    --ease:cubic-bezier(.2,.7,.2,1);
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    background:var(--ink-900);
    color:#E8EAED;
    font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;border:0}
  a{color:inherit;text-decoration:none;transition:color .25s var(--ease),border-color .25s var(--ease)}
  button,input{font:inherit;color:inherit}
  ul,ol{margin:0;padding:0}
  h1,h2,h3,h4,p{margin:0}
  .num{font-variant-numeric:tabular-nums}
  :focus-visible{outline:2px solid var(--volt);outline-offset:3px;border-radius:6px}

  .container{width:100%;max-width:var(--container);margin:0 auto;padding:0 40px}

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(11,13,15,.92);
    backdrop-filter:saturate(160%) blur(14px);
    -webkit-backdrop-filter:saturate(160%) blur(14px);
    border-bottom:1px solid var(--line);
  }
  .nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px}
  .brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto}
  .brand-mark{
    width:38px;height:38px;border-radius:12px;
    background:var(--volt);color:var(--ink-900);
    display:grid;place-items:center;
    font-weight:800;font-size:14px;letter-spacing:.02em;
    font-family:"Inter","Space Grotesk",system-ui,sans-serif;
  }
  .brand-text{font-size:19px;font-weight:700;letter-spacing:-.01em;color:#fff}
  .brand-text span{color:var(--volt)}
  .nav-main{display:flex;align-items:center;gap:4px}
  .nav-link{
    position:relative;display:inline-flex;align-items:center;gap:7px;
    padding:10px 15px;border-radius:999px;font-size:15px;color:#B9BEC6;
    background:transparent;border:0;cursor:pointer;transition:.25s var(--ease);
  }
  .nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
  .nav-link.is-active{color:#fff}
  .nav-link.is-active::after{
    content:"";position:absolute;left:15px;right:15px;bottom:3px;height:2px;
    background:var(--volt);border-radius:2px;
  }
  .mega-toggle i{font-size:11px;transition:transform .25s var(--ease)}
  .nav-mega[data-open="true"] .mega-toggle{color:#fff;background:rgba(255,255,255,.06)}
  .nav-mega[data-open="true"] .mega-toggle i{transform:rotate(180deg)}

  .nav-mega{position:relative}
  .mega-panel{
    position:absolute;right:0;top:calc(100% + 16px);
    width:790px;padding:26px;
    display:grid;grid-template-columns:1.05fr 1fr;gap:26px;
    background:var(--ink-800);border:1px solid var(--line);border-radius:20px;
    box-shadow:0 34px 70px -34px rgba(0,0,0,.85);
    opacity:0;visibility:hidden;transform:translateY(6px);
    transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
  }
  .nav-mega[data-open="true"] .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
  .mega-col-title{
    font-size:12px;letter-spacing:.14em;text-transform:uppercase;
    color:#7C838D;margin-bottom:16px;font-weight:600;
  }
  .mega-links{display:flex;flex-direction:column;gap:6px}
  .mega-link{
    display:flex;gap:13px;align-items:flex-start;
    padding:11px 12px;border-radius:14px;border:1px solid transparent;
    transition:.25s var(--ease);
  }
  .mega-link:hover{background:rgba(255,255,255,.045);border-color:var(--line)}
  .ml-ico{
    flex:0 0 auto;width:34px;height:34px;border-radius:10px;
    background:var(--volt-dim);color:var(--volt);
    display:grid;place-items:center;font-size:14px;
  }
  .mega-link b{display:block;font-size:14.5px;font-weight:600;color:#fff;line-height:1.5}
  .mega-link small{display:block;font-size:12.5px;color:#828A94;line-height:1.6;margin-top:2px}
  .mega-post{
    display:block;padding:14px 4px;border-bottom:1px solid var(--line);
    transition:.25s var(--ease);
  }
  .mega-post:last-child{border-bottom:0}
  .mega-post b{display:block;font-size:14.5px;color:#E8EAED;font-weight:600;line-height:1.55}
  .mega-post span{display:block;font-size:12.5px;color:#7C838D;margin-top:5px}
  .mega-post:hover b{color:var(--volt)}

  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:12px;
    background:var(--ink-700);border:1px solid var(--line);
    color:#fff;cursor:pointer;font-size:16px;
    align-items:center;justify-content:center;
  }
  .nav-toggle:hover{border-color:var(--volt);color:var(--volt)}

  .drawer{
    position:fixed;inset:0;z-index:120;
    background:rgba(11,13,15,.98);
    display:flex;flex-direction:column;
    padding:22px 22px 30px;
    transform:translateX(100%);
    transition:transform .38s var(--ease);
    overflow-y:auto;
  }
  .drawer.is-open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:34px}
  .drawer-close{
    width:44px;height:44px;border-radius:12px;background:var(--ink-700);
    border:1px solid var(--line);color:#fff;cursor:pointer;font-size:16px;
  }
  .drawer-nav{display:flex;flex-direction:column;gap:2px}
  .drawer-nav a{
    font-size:20px;font-weight:600;color:#C6CACF;
    padding:16px 4px;border-bottom:1px solid var(--line);
  }
  .drawer-nav a:hover,.drawer-nav a.is-active{color:var(--volt)}
  .drawer-cta{margin-top:32px;width:100%}

  /* ============ 按钮 / 徽章 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:9px;
    border-radius:999px;font-weight:600;font-size:15px;
    padding:14px 28px;border:1px solid transparent;cursor:pointer;
    transition:.25s var(--ease);white-space:nowrap;line-height:1.2;
  }
  .btn-primary{background:var(--volt);color:var(--ink-900)}
  .btn-primary:hover{background:transparent;border-color:var(--volt);color:var(--volt)}
  .btn-primary:active{transform:translateY(1px)}
  .btn-ghost{background:transparent;border-color:var(--line);color:#fff}
  .btn-ghost:hover{border-color:var(--volt);color:var(--volt)}
  .btn-sm{padding:11px 20px;font-size:14px}
  .btn i{font-size:13px}

  .link-arrow{
    display:inline-flex;align-items:center;gap:8px;
    color:var(--volt);font-size:14.5px;font-weight:600;
  }
  .link-arrow i{transition:transform .3s var(--ease);font-size:12px}
  .link-arrow:hover i{transform:translateX(4px)}

  .badge{
    display:inline-flex;align-items:center;gap:7px;
    padding:6px 14px;border-radius:999px;
    background:var(--volt-dim);color:var(--volt);
    font-size:12px;letter-spacing:.06em;font-weight:600;
  }
  .badge-ember{background:var(--ember);color:#fff}
  .badge-ember .dot{
    width:7px;height:7px;border-radius:50%;background:#fff;
    animation:pulse 2s infinite;
  }
  @keyframes pulse{
    0%,100%{opacity:1;transform:scale(1)}
    50%{opacity:.45;transform:scale(.82)}
  }

  /* ============ 文章首屏 ============ */
  .article-hero{
    position:relative;
    padding:44px 0 0;
    background-image:linear-gradient(180deg,rgba(11,13,15,.9),rgba(11,13,15,.97)),url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;
    border-bottom:1px solid var(--line);
  }
  .crumb{
    display:flex;align-items:center;flex-wrap:wrap;gap:8px;
    font-size:13px;color:#7C838D;margin-bottom:26px;
  }
  .crumb a{color:#9AA0A8}
  .crumb a:hover{color:var(--volt)}
  .crumb .sep{color:#3B414A}
  .crumb .current{color:var(--text-muted);color:#828A94}

  .post-head{max-width:900px;padding-bottom:46px}
  .post-head h1{
    font-size:clamp(30px,4.4vw,52px);
    font-weight:800;letter-spacing:-.03em;line-height:1.16;
    color:#fff;margin:20px 0 22px;
  }
  .post-meta{
    display:flex;align-items:center;flex-wrap:wrap;gap:14px;
    font-size:13.5px;color:#828A94;
  }
  .post-meta .sep{width:4px;height:4px;border-radius:50%;background:#3B414A}

  .post-cover{
    border-radius:14px;overflow:hidden;
    border:1px solid var(--line);
    margin-bottom:-58px;
    position:relative;z-index:2;
    aspect-ratio:16/9;
    background:var(--ink-800);
  }
  .post-cover img{width:100%;height:100%;object-fit:cover;filter:brightness(.94)}

  /* ============ 正文阅读区 ============ */
  .reader{background:var(--paper);color:var(--text-strong);padding:110px 0 72px}
  .article-body{
    max-width:820px;margin:0 auto;
    font-size:17px;line-height:1.9;color:#23262B;
    word-break:break-word;
  }
  .article-body h2{
    position:relative;
    font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.4;
    color:var(--text-strong);
    margin:2.3em 0 .85em;padding-left:16px;
  }
  .article-body h2::before{
    content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;
    background:var(--volt);border-radius:3px;
  }
  .article-body h3{
    font-size:20px;font-weight:600;line-height:1.5;
    color:var(--text-strong);margin:1.7em 0 .65em;
  }
  .article-body h4{font-size:17px;font-weight:600;margin:1.4em 0 .5em;color:var(--text-strong)}
  .article-body p{margin:0 0 1.15em}
  .article-body ul,.article-body ol{margin:0 0 1.25em;padding-left:1.45em}
  .article-body li{margin:.5em 0}
  .article-body ul li::marker{color:#9BB93F}
  .article-body ol li::marker{color:#9BB93F;font-weight:600}
  .article-body blockquote{
    margin:1.7em 0;padding:18px 24px;
    border-left:3px solid var(--volt);
    background:rgba(201,244,91,.16);
    border-radius:0 12px 12px 0;
    color:#3B414A;font-size:16px;
  }
  .article-body blockquote p:last-child{margin-bottom:0}
  .article-body img{border-radius:12px;margin:1.7em auto;height:auto}
  .article-body figure{margin:1.7em 0}
  .article-body figcaption{font-size:13px;color:var(--text-muted);text-align:center;margin-top:10px}
  .article-body a{color:#B8481A;border-bottom:1px solid rgba(255,107,53,.55)}
  .article-body a:hover{color:#8F3410;border-bottom-color:#8F3410}
  .article-body strong{font-weight:700;color:#14171B}
  .article-body hr{border:0;border-top:1px solid var(--line-light);margin:2.4em 0}
  .article-body code{
    background:#ECEDE7;border-radius:6px;padding:2px 7px;
    font-size:14.5px;color:#3B414A;
    font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  }
  .article-body table{
    width:100%;border-collapse:collapse;margin:1.7em 0;font-size:15px;
    display:block;overflow-x:auto;white-space:nowrap;
  }
  .article-body th,.article-body td{border:1px solid var(--line-light);padding:11px 15px;text-align:left}
  .article-body th{background:#EDEEE8;font-weight:600;color:var(--text-strong)}
  .article-body tr:nth-child(even) td{background:#FAFAF7}

  .not-found{
    max-width:620px;margin:0 auto;text-align:center;
    background:var(--paper-2);border:1px solid var(--line-light);
    border-radius:20px;padding:56px 34px;
    box-shadow:0 20px 40px -24px rgba(10,12,14,.18);
  }
  .not-found .nf-ico{
    width:64px;height:64px;border-radius:20px;margin:0 auto 22px;
    background:var(--volt-dim);color:#7E9B21;
    display:grid;place-items:center;font-size:24px;
  }
  .not-found h2{font-size:24px;font-weight:700;color:var(--text-strong);margin-bottom:12px}
  .not-found p{color:var(--text-muted);font-size:15.5px;margin-bottom:26px}

  /* ============ 标签与相关推荐 ============ */
  .post-foot{padding:64px 0 20px;background:var(--ink-900)}
  .tag-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:44px}
  .tag-row .label{font-size:13px;color:#7C838D;letter-spacing:.08em;margin-right:4px}
  .tag{
    display:inline-flex;align-items:center;gap:6px;
    padding:8px 16px;border-radius:999px;
    background:var(--ink-800);border:1px solid var(--line);
    font-size:13px;color:#B9BEC6;transition:.25s var(--ease);
  }
  .tag:hover{border-color:var(--volt);color:var(--volt)}

  .section-head{
    display:flex;align-items:flex-end;justify-content:space-between;
    gap:20px;flex-wrap:wrap;margin-bottom:30px;
  }
  .section-head h2{
    font-size:clamp(22px,2.6vw,30px);font-weight:700;
    letter-spacing:-.02em;color:#fff;line-height:1.25;
  }
  .section-head p{font-size:14.5px;color:#828A94;margin-top:8px}

  .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}

  .card{
    display:flex;flex-direction:column;
    background:var(--ink-800);border:1px solid var(--line);
    border-radius:var(--radius);overflow:hidden;
    transition:transform .35s var(--ease),border-color .35s var(--ease);
  }
  .card:hover{transform:translateY(-4px);border-color:var(--volt)}
  .card-media{aspect-ratio:16/9;overflow:hidden;background:var(--ink-700)}
  .card-media img{width:100%;height:100%;object-fit:cover;filter:brightness(.9);transition:transform .6s var(--ease)}
  .card:hover .card-media img{transform:scale(1.04)}
  .card-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
  .card-body h3{
    font-size:17px;font-weight:600;line-height:1.5;color:#fff;margin-bottom:10px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .card-body p{
    font-size:14px;line-height:1.75;color:#8D949E;margin-bottom:18px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .card-meta{
    margin-top:auto;display:flex;align-items:center;justify-content:space-between;
    font-size:12.5px;color:#6E757F;letter-spacing:.04em;
  }

  .back-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:48px}

  /* ============ 订阅 CTA ============ */
  .cta-band{
    margin-top:72px;
    background:linear-gradient(180deg,var(--ink-800),var(--ink-900));
    border:1px solid var(--line);border-radius:24px;
    padding:48px 44px;
    display:grid;grid-template-columns:1.15fr 1fr;gap:40px;align-items:center;
    position:relative;overflow:hidden;
  }
  .cta-band::after{
    content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;
    border-radius:50%;background:var(--volt-dim);filter:blur(10px);pointer-events:none;
  }
  .cta-band h2{
    font-size:clamp(24px,2.8vw,34px);font-weight:700;letter-spacing:-.02em;
    color:#fff;line-height:1.25;margin-bottom:14px;
  }
  .cta-band p{font-size:15px;color:#8D949E;max-width:460px}
  .cta-form{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:2}
  .cta-form input{
    flex:1;min-width:200px;height:50px;border-radius:999px;
    background:var(--ink-700);border:1px solid var(--line);
    padding:0 22px;font-size:15px;color:#fff;
    transition:.25s var(--ease);
  }
  .cta-form input::placeholder{color:#6E757F}
  .cta-form input:focus{outline:none;border-color:var(--volt);box-shadow:0 0 0 3px rgba(201,244,91,.18)}
  .cta-note{font-size:12.5px;color:#6E757F;margin-top:14px}
  .form-status{font-size:13px;margin-top:12px;min-height:18px;color:var(--ok)}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--ink-900);border-top:1px solid var(--line);padding:68px 0 0;color:#9AA0A8}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;gap:40px;padding-bottom:52px}
  .footer-brand .brand{margin-bottom:18px}
  .footer-brand p{font-size:14.5px;line-height:1.85;color:#828A94;max-width:320px}
  .footer-title{
    font-size:12px;letter-spacing:.14em;text-transform:uppercase;
    color:#fff;font-weight:600;margin-bottom:18px;
  }
  .footer-links{display:flex;flex-direction:column;gap:12px}
  .footer-links a{font-size:14.5px;color:#9AA0A8}
  .footer-links a:hover{color:var(--volt)}
  .footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;margin-bottom:20px;color:#9AA0A8}
  .footer-contact i{color:var(--volt);width:16px;margin-right:6px}
  .footer-form{display:flex;gap:10px}
  .footer-form input{
    flex:1;min-width:0;height:46px;border-radius:999px;
    background:var(--ink-700);border:1px solid var(--line);
    padding:0 18px;font-size:14px;color:#fff;transition:.25s var(--ease);
  }
  .footer-form input::placeholder{color:#6E757F}
  .footer-form input:focus{outline:none;border-color:var(--volt);box-shadow:0 0 0 3px rgba(201,244,91,.18)}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    padding:24px 0 30px;border-top:1px solid var(--line);
    font-size:13px;color:#6E757F;
  }
  .footer-bottom a{color:#828A94;border-bottom:1px solid transparent}
  .footer-bottom a:hover{color:var(--volt);border-bottom-color:var(--volt)}

  /* ============ 动效 ============ */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
  .reveal.is-in{opacity:1;transform:none}

  @media (prefers-reduced-motion:reduce){
    *{animation:none !important;transition:none !important}
    .reveal{opacity:1;transform:none}
  }

  /* ============ 响应式 ============ */
  @media (max-width:1024px){
    .container{padding:0 24px}
    .nav-main{display:none}
    .nav-toggle{display:inline-flex}
    .related-grid{grid-template-columns:repeat(2,1fr)}
    .cta-band{grid-template-columns:1fr;padding:40px 30px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
    .post-cover{margin-bottom:-42px}
    .reader{padding:92px 0 60px}
  }
  @media (max-width:768px){
    .container{padding:0 20px}
    .nav-inner{height:68px}
    .article-hero{padding-top:30px}
    .post-head{padding-bottom:34px}
    .post-head h1{margin:16px 0 18px}
    .post-cover{aspect-ratio:3/2;margin-bottom:-30px}
    .reader{padding:76px 0 52px}
    .article-body{font-size:16.5px;line-height:1.88}
    .article-body h2{margin-top:1.9em}
    .post-foot{padding-top:48px}
    .related-grid{grid-template-columns:1fr}
    .cta-band{margin-top:52px;padding:34px 22px;border-radius:20px}
    .footer-grid{grid-template-columns:1fr;gap:32px}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  }
  @media (max-width:520px){
    .brand-text{font-size:17px}
    .brand-mark{width:34px;height:34px;border-radius:10px;font-size:13px}
    .btn{padding:13px 22px;font-size:14.5px}
    .cta-form input{min-width:100%}
    .cta-form .btn{width:100%}
    .footer-form{flex-wrap:wrap}
    .footer-form input{min-width:100%}
    .footer-form .btn{width:100%}
    .not-found{padding:40px 22px}
  }

/* roulang page: category1 */
:root{
  --ink-900:#0B0D0F;
  --ink-800:#14171B;
  --ink-700:#1C2026;
  --line:#262B33;
  --paper:#F5F5F1;
  --paper-2:#FFFFFF;
  --text-strong:#14171B;
  --text-muted:#5E646E;
  --line-light:#E3E4DE;
  --volt:#C9F45B;
  --ember:#FF6B35;
  --volt-dim:rgba(201,244,91,.14);
  --ok:#3FBF7F;
  --warn:#E4572E;
  --radius-card:18px;
  --radius-img:14px;
  --shadow-light:0 20px 40px -24px rgba(10,12,14,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-900);
  color:#fff;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em}
p{margin:0 0 1.1em}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:var(--volt);color:var(--ink-900)}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 48px}}

.num{font-family:Inter,"Space Grotesk",system-ui,sans-serif;font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.is-stuck{
  background:rgba(11,13,15,.92);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:78px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{
  width:38px;height:38px;border-radius:11px;background:var(--volt);color:var(--ink-900);
  display:grid;place-items:center;font-weight:800;font-size:14px;letter-spacing:.04em;flex:0 0 auto;
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:-.01em;color:#fff;white-space:nowrap}
.brand-text span{color:var(--volt)}
.nav-main{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:9px 14px;border:0;background:none;border-radius:999px;
  font-size:15px;color:rgba(255,255,255,.7);cursor:pointer;
  transition:color .25s ease,background .25s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--volt);
}
.nav-link i{font-size:11px;transition:transform .25s ease}
.nav-cta{margin-left:10px}
.nav-mega{position:relative}
.nav-mega[data-open="true"] .mega-toggle i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:-60px;width:800px;
  background:var(--ink-800);border:1px solid var(--line);border-radius:20px;
  padding:26px;display:grid;grid-template-columns:1.15fr 1fr;gap:26px;
  opacity:0;visibility:hidden;transform:translateY(4px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
  box-shadow:0 30px 60px -30px rgba(0,0,0,.9);
}
.nav-mega[data-open="true"] .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col-title{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--text-muted);margin-bottom:14px}
.mega-links{display:flex;flex-direction:column;gap:4px}
.mega-link{display:flex;gap:12px;padding:11px 12px;border-radius:14px;transition:background .25s ease}
.mega-link:hover{background:var(--ink-700)}
.ml-ico{
  width:34px;height:34px;flex:0 0 auto;border-radius:10px;background:var(--volt-dim);color:var(--volt);
  display:grid;place-items:center;font-size:13px;
}
.mega-link b{display:block;font-size:14.5px;font-weight:600;color:#fff;line-height:1.5}
.mega-link small{display:block;font-size:12.5px;color:var(--text-muted);line-height:1.6}
.mega-post{display:block;padding:10px 0;border-bottom:1px solid var(--line)}
.mega-post:last-of-type{border-bottom:0}
.mega-post b{display:block;font-size:14.5px;font-weight:600;color:#fff;line-height:1.55}
.mega-post span{display:block;font-size:12.5px;color:var(--text-muted);margin-top:2px}
.mega-post:hover b{color:var(--volt)}
.mega-card{
  margin-top:14px;display:flex;gap:12px;align-items:center;padding:12px;
  border:1px solid var(--line);border-radius:16px;transition:border-color .25s ease;
}
.mega-card:hover{border-color:var(--volt)}
.mega-card img{width:76px;height:52px;object-fit:cover;border-radius:10px;flex:0 0 auto;filter:brightness(.88)}
.mega-card b{display:block;font-size:14px;color:#fff;line-height:1.5}
.mega-card span{display:block;font-size:12px;color:var(--text-muted)}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--ink-800);color:#fff;cursor:pointer;
}
.nav-toggle i{font-size:16px}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:120;background:rgba(11,13,15,.98);
  display:flex;flex-direction:column;padding:22px 20px 26px;
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
}
.mobile-drawer.is-open{opacity:1;visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:transparent;color:#fff;cursor:pointer}
.drawer-nav{display:flex;flex-direction:column;gap:4px;overflow-y:auto;flex:1}
.drawer-nav a{font-size:20px;font-weight:600;padding:14px 4px;border-bottom:1px solid var(--line);color:#fff}
.drawer-nav a.is-active{color:var(--volt)}
.drawer-sub{display:flex;flex-direction:column;gap:2px;margin:10px 0 0 6px}
.drawer-sub a{font-size:15px;font-weight:500;color:var(--text-muted);border-bottom:0;padding:8px 0}
.drawer-foot{margin-top:18px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:14px 28px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .25s ease;white-space:nowrap;
}
.btn-primary{background:var(--volt);color:var(--ink-900)}
.btn-primary:hover{background:transparent;border-color:var(--volt);color:var(--volt)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--line);color:#fff}
.btn-ghost:hover{border-color:var(--volt);color:var(--volt)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:11px 20px;font-size:14px}
.btn-link{display:inline-flex;align-items:center;gap:8px;color:var(--volt);font-weight:600;font-size:15px}
.btn-link i{transition:transform .25s ease}
.btn-link:hover i{transform:translateX(4px)}
:where(a,button,input,summary):focus-visible{outline:2px solid var(--volt);outline-offset:3px}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:7px;padding:5px 12px;border-radius:999px;
  background:var(--volt-dim);color:var(--volt);font-size:12px;letter-spacing:.06em;
}
.badge-live{background:var(--ember);color:#fff}
.dot-live{width:7px;height:7px;border-radius:50%;background:#fff;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.82)}}
.tag{
  display:inline-flex;align-items:center;padding:8px 18px;border-radius:999px;
  border:1px solid var(--line);color:rgba(255,255,255,.68);font-size:13.5px;transition:all .25s ease;
}
.tag:hover{border-color:var(--volt);color:#fff}
.tag.is-current{background:var(--volt);border-color:var(--volt);color:var(--ink-900);font-weight:600}

/* ---------- 区块通用 ---------- */
.section{padding:64px 0}
@media (min-width:768px){.section{padding:84px 0}}
@media (min-width:1024px){.section{padding:112px 0}}
.section-head{max-width:820px;margin-bottom:42px}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;font-size:12px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--volt);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--volt)}
h2.section-title{font-size:clamp(28px,3.6vw,44px);font-weight:700;line-height:1.15}
.section-sub{color:rgba(255,255,255,.62);margin-top:16px;font-size:16.5px;max-width:720px}
.light{background:var(--paper);color:var(--text-strong)}
.light .section-sub{color:var(--text-muted)}
.light .eyebrow{color:#7a8a2e}
.light .eyebrow::before{background:#9db93c}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;margin-top:-78px;
  padding:170px 0 72px;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,15,.86) 0%,rgba(11,13,15,.72) 45%,rgba(11,13,15,.97) 100%);
}
.hero-inner{position:relative;display:grid;gap:48px;grid-template-columns:1.15fr .85fr;align-items:end}
.hero-crumb{font-size:13px;color:rgba(255,255,255,.52);margin-bottom:20px}
.hero-crumb a{color:rgba(255,255,255,.7)}
.hero-crumb a:hover{color:var(--volt)}
.hero-crumb span{margin:0 8px;color:rgba(255,255,255,.3)}
.hero h1{
  font-size:clamp(40px,6vw,76px);font-weight:800;line-height:1.05;letter-spacing:-.03em;max-width:14em;
}
.hero h1 em{font-style:normal;color:var(--volt)}
.hero-sub{color:rgba(255,255,255,.72);font-size:17px;margin-top:24px;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-card{
  border:1px solid var(--line);border-radius:var(--radius-card);background:rgba(20,23,27,.86);
  backdrop-filter:blur(6px);padding:18px;position:relative;
}
.hero-card img{border-radius:var(--radius-img);aspect-ratio:16/9;object-fit:cover;filter:brightness(.9)}
.hero-card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.hero-card-meta{margin-top:16px}
.hero-card-meta b{display:block;font-size:17px;line-height:1.5}
.hero-card-meta span{display:block;font-size:13px;color:var(--text-muted);margin-top:4px}
.tick-row{display:flex;gap:5px;margin-top:16px}
.tick{height:4px;flex:1;border-radius:2px;background:var(--line)}
.tick.on{background:var(--volt)}

.stat-strip{
  position:relative;margin-top:64px;border-top:1px solid var(--line);
  display:grid;grid-template-columns:repeat(4,1fr);
}
.stat-cell{padding:26px 22px;border-right:1px solid var(--line)}
.stat-cell:last-child{border-right:0}
.stat-cell b{display:block;font-size:clamp(24px,2.6vw,34px);font-weight:800;color:var(--volt);line-height:1.1}
.stat-cell span{display:block;font-size:13px;color:rgba(255,255,255,.58);margin-top:8px}

/* ---------- 编号列表 ---------- */
.number-list{border-top:1px solid var(--line)}
.number-item{
  display:grid;grid-template-columns:96px 1fr auto;gap:24px;align-items:start;
  padding:32px 8px;border-bottom:1px solid var(--line);
  transition:transform .35s cubic-bezier(.2,.7,.2,1),background .35s ease;
}
.number-item:hover{transform:translateX(6px)}
.number-item .no{
  font-size:clamp(30px,3.4vw,46px);font-weight:800;color:var(--volt);line-height:1;letter-spacing:-.04em;
}
.number-item h3{font-size:20px;font-weight:600;margin-bottom:8px}
.number-item p{color:rgba(255,255,255,.62);margin:0;font-size:15.5px;max-width:640px}
.number-item .n-ico{color:var(--line);font-size:20px;transition:color .3s ease}
.number-item:hover .n-ico{color:var(--volt)}

/* ---------- 双栏图文 ---------- */
.split{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:56px;align-items:start}
.prose p{font-size:16.5px;line-height:1.9;margin-bottom:1.1em}
.light .prose p{color:#33383f}
.prose h3{font-size:22px;font-weight:700;margin:38px 0 14px;padding-left:16px;border-left:3px solid var(--volt);line-height:1.4}
.prose h3:first-child{margin-top:0}
.prose ul{margin:0 0 1.2em}
.prose ul li{position:relative;padding-left:20px;margin-bottom:10px;font-size:16px;line-height:1.8;color:#33383f}
.prose ul li::before{content:"";position:absolute;left:0;top:12px;width:8px;height:1px;background:#9db93c}
.quote{
  border-left:3px solid var(--volt);background:rgba(201,244,91,.12);
  padding:20px 24px;border-radius:0 14px 14px 0;margin:28px 0;
  font-size:16.5px;color:#2b3037;line-height:1.85;
}
.wide-figure{margin-top:44px}
.wide-figure img{border-radius:var(--radius-img);aspect-ratio:21/9;object-fit:cover;width:100%}
.wide-figure figcaption{font-size:13px;color:var(--text-muted);margin-top:12px;text-align:center}

.side-card{
  position:sticky;top:104px;
  border:1px solid var(--line-light);border-radius:var(--radius-card);
  background:var(--paper-2);padding:26px;box-shadow:var(--shadow-light);
}
.side-card h4{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-muted);margin-bottom:16px}
.side-card ol{counter-reset:side;display:flex;flex-direction:column}
.side-card ol li{
  display:flex;gap:12px;align-items:baseline;padding:12px 0;border-bottom:1px solid var(--line-light);
  font-size:15px;color:var(--text-strong);
}
.side-card ol li:last-child{border-bottom:0}
.side-card ol li::before{
  counter-increment:side;content:"0" counter(side);
  font-size:12px;color:#9db93c;font-weight:700;letter-spacing:.04em;
}
.side-note{
  margin-top:22px;padding-top:20px;border-top:1px solid var(--line-light);
  font-size:13.5px;color:var(--text-muted);line-height:1.8;
}
.side-cta{display:block;margin-top:18px}

/* ---------- 场次卡 ---------- */
.match-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.match-card{
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--ink-800);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .35s cubic-bezier(.2,.7,.2,1),border-color .35s ease;
}
.match-card:hover{transform:translateY(-4px);border-color:var(--volt)}
.match-cover{position:relative;overflow:hidden}
.match-cover img{aspect-ratio:16/9;object-fit:cover;width:100%;filter:brightness(.86);transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.match-card:hover .match-cover img{transform:scale(1.04)}
.match-cover .badge{position:absolute;left:16px;top:16px}
.match-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.match-time{font-size:13px;color:var(--text-muted);letter-spacing:.04em}
.match-body h3{font-size:19px;font-weight:600;line-height:1.5}
.match-body p{font-size:14.5px;color:rgba(255,255,255,.6);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.match-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:6px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq-item{border-bottom:1px solid var(--line-light)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-size:18px;font-weight:600;color:var(--text-strong);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:#9db93c;font-size:14px;transition:transform .3s ease}
.faq-item[open] summary i{transform:rotate(45deg)}
.faq-item p{color:var(--text-muted);font-size:15.5px;line-height:1.85;margin:0 0 24px;max-width:760px}

/* ---------- 订阅 CTA ---------- */
.cta-band{
  position:relative;background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:72px 0;
}
.cta-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.cta-inner h2{font-size:clamp(26px,3.2vw,38px);font-weight:700;line-height:1.2}
.cta-inner p{color:rgba(255,255,255,.62);margin:16px 0 0;max-width:520px}
.inline-form{display:flex;gap:12px;flex-wrap:wrap}
.inline-form input{
  flex:1;min-width:220px;height:52px;border-radius:999px;background:var(--ink-700);
  border:1px solid var(--line);color:#fff;padding:0 22px;transition:border-color .25s ease,box-shadow .25s ease;
}
.inline-form input::placeholder{color:var(--text-muted)}
.inline-form input:focus{outline:none;border-color:var(--volt);box-shadow:0 0 0 2px rgba(201,244,91,.22)}
.form-status{font-size:13.5px;margin-top:14px;color:var(--text-muted);min-height:20px}
.form-status.is-ok{color:var(--ok)}
.form-status.is-err{color:var(--warn)}
.privacy-note{font-size:12.5px;color:var(--text-muted);margin-top:10px}

/* ---------- 下一步 ---------- */
.next-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.next-card{
  border:1px solid var(--line);border-radius:var(--radius-card);padding:26px;
  display:flex;flex-direction:column;gap:10px;background:var(--ink-800);
  transition:transform .35s cubic-bezier(.2,.7,.2,1),border-color .35s ease;
}
.next-card:hover{transform:translateY(-4px);border-color:var(--volt)}
.next-card i{color:var(--volt);font-size:18px}
.next-card b{font-size:17px;font-weight:600}
.next-card span{font-size:14px;color:rgba(255,255,255,.6);line-height:1.75}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);border-top:1px solid var(--line);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand p{color:rgba(255,255,255,.58);font-size:14.5px;margin-top:18px;max-width:330px;line-height:1.8}
.footer-title{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-muted);margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.72);transition:color .25s ease}
.footer-links a:hover{color:var(--volt)}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:rgba(255,255,255,.66);margin-bottom:18px}
.footer-contact i{color:var(--volt);width:16px}
.footer-form{display:flex;gap:10px;flex-wrap:wrap}
.footer-form input{
  flex:1;min-width:150px;height:44px;border-radius:999px;background:var(--ink-700);
  border:1px solid var(--line);color:#fff;padding:0 18px;font-size:14px;
}
.footer-form input::placeholder{color:var(--text-muted)}
.footer-form input:focus{outline:none;border-color:var(--volt);box-shadow:0 0 0 2px rgba(201,244,91,.2)}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-muted);
}
.footer-bottom a{color:var(--text-muted)}
.footer-bottom a:hover{color:var(--volt)}

/* ---------- 进场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s cubic-bezier(.2,.7,.2,1),transform .6s cubic-bezier(.2,.7,.2,1)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-main{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero{margin-top:-78px;padding:150px 0 64px}
  .split{grid-template-columns:1fr;gap:36px}
  .side-card{position:static}
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .next-grid{grid-template-columns:1fr}
}
@media (max-width:767px){
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat-cell:nth-child(2){border-right:0}
  .stat-cell{border-bottom:1px solid var(--line)}
  .stat-cell:nth-last-child(-n+2){border-bottom:0}
  .match-grid{grid-template-columns:1fr}
  .number-item{grid-template-columns:64px 1fr;gap:16px;padding:26px 4px}
  .number-item .n-ico{display:none}
  .hero{padding:132px 0 56px}
}
@media (max-width:519px){
  body{font-size:16px}
  .hero h1{font-size:clamp(32px,9vw,40px)}
  .hero-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .inline-form .btn{width:100%}
  .brand-text{font-size:17px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --ink-900:#0B0D0F;
  --ink-800:#14171B;
  --ink-700:#1C2026;
  --line:#262B33;
  --paper:#F5F5F1;
  --paper-2:#FFFFFF;
  --text-strong:#14171B;
  --text-muted:#5E646E;
  --line-light:#E3E4DE;
  --volt:#C9F45B;
  --ember:#FF6B35;
  --volt-dim:rgba(201,244,91,.14);
  --ok:#3FBF7F;
  --warn:#E4572E;
  --r-card:18px;
  --r-img:14px;
  --maxw:1240px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
.page-body{
  margin:0;
  background:var(--ink-900);
  color:#E6E9EC;
  font-family:HarmonyOS Sans,PingFang SC,Microsoft YaHei,system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
.page-body img{max-width:100%;display:block;}
.page-body a{color:inherit;text-decoration:none;}
.page-body button,.page-body input{font:inherit;color:inherit;}
.page-body ul{margin:0;padding:0;list-style:none;}
.page-body h1,.page-body h2,.page-body h3,.page-body p{margin:0;}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 32px;}}
@media (min-width:1024px){.container{padding:0 48px;}}
.section{padding:72px 0;}
@media (min-width:1024px){.section{padding:104px 0;}}
.section-tight{padding:56px 0;}
@media (min-width:1024px){.section-tight{padding:72px 0;}}
.section-paper{background:var(--paper);color:var(--text-strong);}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--volt);color:var(--ink-900);padding:10px 16px;border-radius:0 0 12px 0;z-index:200;}
.skip-link:focus{left:0;}
:focus-visible{outline:2px solid var(--volt);outline-offset:3px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:transparent;
  transition:background .35s var(--ease),border-color .35s var(--ease),backdrop-filter .35s;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(11,13,15,.92);
  border-bottom-color:var(--line);
  backdrop-filter:blur(12px);
}
.nav-inner{display:flex;align-items:center;gap:24px;height:74px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--volt);color:var(--ink-900);
  display:grid;place-items:center;font-size:13px;font-weight:800;letter-spacing:.04em;
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:#fff;}
.brand-text span{color:var(--volt);}
.nav-main{display:none;align-items:center;gap:4px;margin-left:auto;}
@media (min-width:1024px){.nav-main{display:flex;}}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:9px 13px;border-radius:999px;border:0;background:none;cursor:pointer;
  font-size:14.5px;color:#ADB3BC;transition:color .25s var(--ease),background .25s var(--ease);
  white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05);}
.nav-link.is-active{color:#fff;}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;
  background:var(--volt);border-radius:2px;
}
.nav-mega{position:relative;}
.nav-mega[data-open="true"] .mega-toggle{color:#fff;background:rgba(255,255,255,.05);}
.mega-toggle i{font-size:11px;transition:transform .3s var(--ease);}
.nav-mega[data-open="true"] .mega-toggle i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;top:calc(100% + 16px);left:50%;
  width:790px;max-width:calc(100vw - 64px);
  transform:translate(-50%,4px);
  background:var(--ink-800);border:1px solid var(--line);border-radius:20px;
  padding:26px;display:grid;grid-template-columns:1.1fr .9fr;gap:30px;
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
  box-shadow:0 30px 60px -30px rgba(0,0,0,.9);
}
.nav-mega[data-open="true"] .mega-panel{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0);}
.mega-col-title{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:#6C737C;margin-bottom:14px;}
.mega-links{display:flex;flex-direction:column;gap:6px;}
.mega-link{display:flex;gap:12px;padding:11px 12px;border-radius:14px;transition:background .25s var(--ease);}
.mega-link:hover{background:rgba(255,255,255,.05);}
.mega-link b{display:block;font-size:14.5px;color:#EDEFF2;font-weight:600;}
.mega-link small{display:block;font-size:12.5px;color:#818892;line-height:1.6;}
.ml-ico{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;display:grid;place-items:center;
  background:var(--volt-dim);color:var(--volt);font-size:13px;
}
.mega-post{display:block;padding:12px 14px;border-radius:14px;border:1px solid var(--line);margin-bottom:10px;transition:border-color .25s var(--ease),transform .25s var(--ease);}
.mega-post:hover{border-color:var(--volt);transform:translateY(-2px);}
.mega-post b{display:block;font-size:14px;color:#EDEFF2;font-weight:600;}
.mega-post span{display:block;font-size:12.5px;color:#818892;margin-top:4px;}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
@media (min-width:1024px){.nav-actions{margin-left:0;}}
.nav-burger{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--ink-800);
  color:#fff;cursor:pointer;display:grid;place-items:center;font-size:15px;transition:border-color .25s;
}
.nav-burger:hover{border-color:var(--volt);}
@media (min-width:1024px){.nav-burger{display:none;}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:999px;padding:14px 28px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .15s;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--volt);color:var(--ink-900);}
.btn-primary:hover{background:transparent;color:var(--volt);border-color:var(--volt);}
.btn-ghost{background:transparent;color:#fff;border-color:var(--line);}
.btn-ghost:hover{border-color:var(--volt);color:var(--volt);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-link{display:inline-flex;align-items:center;gap:7px;color:var(--volt);font-size:14px;font-weight:600;}
.btn-link i{transition:transform .3s var(--ease);}
.btn-link:hover i{transform:translateX(4px);}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(11,13,15,.72),rgba(11,13,15,.94)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  filter:saturate(.75);
}
.page-hero-inner{
  position:relative;display:grid;gap:48px;padding:72px 0 64px;align-items:center;
}
@media (min-width:1024px){
  .page-hero-inner{grid-template-columns:1.05fr .95fr;padding:104px 0 92px;gap:64px;}
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--volt);background:var(--volt-dim);border:1px solid rgba(201,244,91,.24);
  padding:6px 14px;border-radius:999px;
}
.cat-title{
  font-size:clamp(34px,4.8vw,60px);font-weight:800;letter-spacing:-.03em;line-height:1.08;
  color:#fff;margin:22px 0 0;
}
.lede{color:#A9AFB8;font-size:17px;max-width:640px;margin-top:20px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:26px;margin-top:32px;padding-top:26px;border-top:1px solid var(--line);}
.hero-meta li{font-size:13px;color:#8B929B;}
.hero-meta li b{display:block;font-size:19px;color:#fff;font-weight:700;font-variant-numeric:tabular-nums;}
.hero-card{
  background:var(--ink-800);border:1px solid var(--line);border-radius:20px;overflow:hidden;
  box-shadow:0 40px 80px -50px rgba(0,0,0,.95);
}
.hero-card-media{position:relative;aspect-ratio:16/9;overflow:hidden;}
.hero-card-media img{width:100%;height:100%;object-fit:cover;filter:brightness(.85);}
.badge-live{
  position:absolute;top:14px;left:14px;display:inline-flex;align-items:center;gap:7px;
  background:var(--ember);color:#fff;font-size:12px;font-weight:700;letter-spacing:.08em;
  padding:6px 13px;border-radius:999px;
}
.badge-live i{width:7px;height:7px;border-radius:50%;background:#fff;animation:pulse 2s infinite;}
@keyframes pulse{0%{opacity:1;transform:scale(1);}50%{opacity:.35;transform:scale(.82);}100%{opacity:1;transform:scale(1);}}
.hero-card-body{padding:22px 24px 24px;}
.score-line{display:flex;align-items:center;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--line);font-size:15px;color:#C6CBD2;}
.score-line:last-of-type{border-bottom:0;}
.score-line b{font-size:24px;font-weight:800;color:var(--volt);font-variant-numeric:tabular-nums;}
.hero-card-foot{margin-top:12px;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:#818892;}

/* ---------- filter bar ---------- */
.filter-wrap{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;margin-bottom:34px;}
.filter-bar{
  display:flex;flex-wrap:wrap;gap:6px;padding:7px;border:1px solid var(--line);
  border-radius:999px;background:var(--ink-800);
}
@media (max-width:640px){.filter-bar{border-radius:18px;}}
.chip{
  border:0;background:transparent;color:#A4AAB3;font-size:14px;padding:9px 18px;border-radius:999px;
  cursor:pointer;transition:background .25s var(--ease),color .25s var(--ease),font-weight .2s;
}
.chip:hover{color:#fff;}
.chip.is-active{background:var(--volt);color:var(--ink-900);font-weight:700;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:40px;}
.section-head h2{font-size:clamp(26px,3.4vw,40px);font-weight:700;line-height:1.15;letter-spacing:-.02em;color:#fff;}
.section-head p{color:#8B929B;font-size:15px;max-width:620px;margin-top:12px;}
.section-paper .section-head h2{color:var(--text-strong);}
.section-paper .section-head p{color:var(--text-muted);}
.kicker{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--volt);margin-bottom:14px;display:block;}
.section-paper .kicker{color:#6F7A2E;}

/* ---------- cards grid ---------- */
.cat-grid{display:grid;gap:24px;grid-template-columns:1fr;}
@media (min-width:768px){.cat-grid{grid-template-columns:repeat(2,1fr);}}
.cat-card{
  background:var(--ink-800);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .5s var(--ease),border-color .3s var(--ease);
}
.cat-card:hover{transform:translateY(-4px);border-color:var(--volt);}
.cat-card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--ink-700);}
.cat-card-media img{width:100%;height:100%;object-fit:cover;filter:brightness(.88);transition:transform .6s var(--ease);}
.cat-card:hover .cat-card-media img{transform:scale(1.04);}
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.06em;
  padding:5px 12px;border-radius:999px;background:var(--volt-dim);color:var(--volt);
  border:1px solid rgba(201,244,91,.24);
}
.badge-abs{position:absolute;top:14px;left:14px;}
.cat-card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.cat-card-body h3{font-size:21px;font-weight:700;color:#fff;line-height:1.35;letter-spacing:-.01em;}
.cat-card-body p{color:#9AA1AA;font-size:15px;line-height:1.8;}
.cat-card-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:#818892;}

/* ---------- paper schedule list ---------- */
.schedule-list{border-top:1px solid var(--line-light);}
.schedule-row{
  display:grid;grid-template-columns:96px 1fr auto;gap:18px;align-items:center;
  padding:20px 0;border-bottom:1px solid var(--line-light);
  transition:background .3s var(--ease),padding .3s var(--ease);
}
@media (max-width:768px){
  .schedule-row{grid-template-columns:1fr;gap:8px;padding:18px 0;}
}
.schedule-row:hover{background:var(--paper-2);padding-left:16px;padding-right:16px;}
.schedule-date{font-size:13px;color:var(--text-muted);letter-spacing:.04em;}
.schedule-row.is-today .schedule-date{color:var(--ember);font-weight:700;}
.schedule-match{font-size:17px;font-weight:700;color:var(--text-strong);}
.schedule-match small{display:block;font-size:13px;font-weight:400;color:var(--text-muted);margin-top:4px;}
.schedule-state{display:flex;align-items:center;gap:14px;font-size:13.5px;color:var(--text-muted);}
.tag{font-size:12px;padding:4px 11px;border-radius:999px;background:rgba(20,23,27,.06);border:1px solid var(--line-light);color:#3E444C;}
.tag-live{background:rgba(255,107,53,.12);border-color:rgba(255,107,53,.35);color:#C2410C;font-weight:700;}
.tag-soon{background:rgba(201,244,91,.28);border-color:rgba(140,175,45,.4);color:#4A5A10;font-weight:700;}
.schedule-score{font-size:19px;font-weight:800;color:var(--text-strong);font-variant-numeric:tabular-nums;}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(2,1fr);border:1px solid var(--line);border-radius:20px;overflow:hidden;background:var(--ink-800);}
@media (min-width:900px){.stats{grid-template-columns:repeat(4,1fr);}}
.stat{padding:30px 24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);}
@media (min-width:900px){.stat{border-bottom:0;}.stat:last-child{border-right:0;}}
@media (max-width:899px){.stat:nth-child(2n){border-right:0;}.stat:nth-last-child(-n+2){border-bottom:0;}}
.stat b{display:block;font-size:clamp(30px,3.4vw,42px);font-weight:800;color:var(--volt);letter-spacing:-.02em;font-variant-numeric:tabular-nums;}
.stat span{display:block;margin-top:8px;font-size:13.5px;color:#8B929B;}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:24px 0;display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-size:18px;font-weight:600;color:#fff;transition:color .25s var(--ease);
}
.faq-item summary:hover{color:var(--volt);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary i{color:var(--volt);font-size:14px;transition:transform .3s var(--ease);flex:0 0 auto;}
.faq-item[open] summary i{transform:rotate(45deg);}
.faq-item p{color:#98A0A9;font-size:15.5px;line-height:1.8;max-width:780px;padding-bottom:24px;}

/* ---------- cta ---------- */
.cta-band{
  background:var(--ink-800);border:1px solid var(--line);border-radius:24px;
  padding:38px 28px;display:grid;gap:28px;
}
@media (min-width:900px){.cta-band{grid-template-columns:1fr 1fr;align-items:center;padding:48px;gap:40px;}}
.cta-band h2{font-size:clamp(26px,3.2vw,36px);font-weight:700;color:#fff;line-height:1.2;letter-spacing:-.02em;}
.cta-band p{color:#98A0A9;font-size:15px;margin-top:14px;}
.inline-form{display:flex;gap:12px;flex-wrap:wrap;}
.inline-form input{
  flex:1 1 220px;height:50px;border-radius:999px;background:var(--ink-700);
  border:1px solid var(--line);padding:0 22px;font-size:15px;color:#fff;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.inline-form input::placeholder{color:#7C838D;}
.inline-form input:focus{outline:none;border-color:var(--volt);box-shadow:0 0 0 3px rgba(201,244,91,.18);}
.form-status{font-size:13px;margin-top:14px;min-height:20px;color:#8B929B;}
.form-status.is-ok{color:var(--ok);}
.form-status.is-err{color:var(--warn);}
.privacy-note{font-size:12.5px;color:#767D86;margin-top:10px;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);border-top:1px solid var(--line);padding:64px 0 28px;}
.footer-grid{display:grid;gap:40px;grid-template-columns:1fr;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr .8fr .9fr 1.1fr;}}
.footer-brand p{color:#8B929B;font-size:14.5px;margin-top:18px;max-width:340px;line-height:1.8;}
.footer-title{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:#6C737C;margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{color:#B4BAC3;font-size:14.5px;transition:color .25s var(--ease);}
.footer-links a:hover{color:var(--volt);}
.footer-contact{display:flex;flex-direction:column;gap:11px;color:#B4BAC3;font-size:14.5px;margin-bottom:20px;}
.footer-contact i{color:var(--volt);width:16px;}
.footer-form{display:flex;gap:10px;}
.footer-form input{
  flex:1 1 auto;min-width:0;height:46px;border-radius:999px;background:var(--ink-700);
  border:1px solid var(--line);padding:0 18px;font-size:14px;color:#fff;
}
.footer-form input::placeholder{color:#7C838D;}
.footer-form input:focus{outline:none;border-color:var(--volt);box-shadow:0 0 0 3px rgba(201,244,91,.16);}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#767D86;
}
.footer-bottom a{color:#8B929B;transition:color .25s;}
.footer-bottom a:hover{color:var(--volt);}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:200;pointer-events:none;}
.drawer[data-open="true"]{pointer-events:auto;}
.drawer-mask{position:absolute;inset:0;background:rgba(5,6,8,.74);opacity:0;transition:opacity .3s var(--ease);}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(86vw,368px);
  background:var(--ink-900);border-left:1px solid var(--line);
  padding:22px;display:flex;flex-direction:column;gap:24px;overflow-y:auto;
  transform:translateX(100%);transition:transform .35s var(--ease);
}
.drawer[data-open="true"] .drawer-mask{opacity:1;}
.drawer[data-open="true"] .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--ink-800);
  color:#fff;cursor:pointer;display:grid;place-items:center;font-size:15px;
}
.drawer-close:hover{border-color:var(--volt);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  font-size:19px;font-weight:600;color:#D7DBE0;padding:13px 4px;border-bottom:1px solid var(--line);
  transition:color .25s var(--ease),padding-left .25s var(--ease);
}
.drawer-nav a:hover{color:var(--volt);padding-left:10px;}
.drawer-nav a.is-active{color:var(--volt);}
.drawer-cta{margin-top:auto;width:100%;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --ink-900:#0B0D0F;
  --ink-800:#14171B;
  --ink-700:#1C2026;
  --line:#262B33;
  --paper:#F5F5F1;
  --paper-2:#FFFFFF;
  --text-strong:#14171B;
  --text-muted:#5E646E;
  --line-light:#E3E4DE;
  --volt:#C9F45B;
  --ember:#FF6B35;
  --volt-dim:rgba(201,244,91,.14);
  --ok:#3FBF7F;
  --warn:#E4572E;
  --radius-card:18px;
  --radius-img:14px;
  --shadow-light:0 20px 40px -24px rgba(10,12,14,.18);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","Space Grotesk",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-900);
  color:#EDEFF2;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:var(--volt);color:var(--ink-900)}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}
@media(min-width:1024px){.container{padding:0 48px}}

.section{padding:76px 0}
@media(min-width:1024px){.section{padding:112px 0}}
.section-ink{background:var(--ink-900)}
.section-ink2{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-paper{background:var(--paper);color:var(--text-strong)}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:12px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--volt);margin-bottom:18px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--volt);display:block}
.sec-title{
  font-size:clamp(26px,3.4vw,42px);font-weight:700;line-height:1.18;
  letter-spacing:-.02em;color:#fff;
}
.section-paper .sec-title{color:var(--text-strong)}
.sec-sub{color:var(--text-muted);margin-top:14px;max-width:660px;font-size:16px}
.sec-head{margin-bottom:48px}
.sec-head-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:14px 28px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:background .25s ease,color .25s ease,border-color .25s ease,transform .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--volt);color:var(--ink-900)}
.btn-primary:hover{background:transparent;color:var(--volt);border-color:var(--volt)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:#fff;border-color:var(--line)}
.btn-ghost:hover{border-color:var(--volt);color:var(--volt)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn:focus-visible{outline:2px solid var(--volt);outline-offset:3px}

.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--volt);font-size:14px;font-weight:600}
.link-arrow i{transition:transform .3s ease}
.link-arrow:hover i{transform:translateX(4px)}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;
  background:var(--volt-dim);color:var(--volt);letter-spacing:.04em;
}
.badge-live{background:var(--ember);color:#fff}
.badge-live .dot{width:6px;height:6px;border-radius:50%;background:#fff;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.82)}}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:transparent;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(11,13,15,.92);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:74px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:-.02em;color:#fff}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:var(--volt);color:var(--ink-900);
  display:grid;place-items:center;font-family:var(--font-num);font-size:13px;font-weight:900;letter-spacing:-.02em;
}
.brand-text span{color:var(--volt)}
.nav-main{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:9px 14px;border-radius:999px;font-size:14.5px;
  color:rgba(255,255,255,.72);background:transparent;border:none;cursor:pointer;
  transition:color .22s ease,background .22s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-link.is-active{color:var(--volt)}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;background:var(--volt);border-radius:2px;
}
.nav-link i{font-size:11px;transition:transform .25s ease}
.nav-mega{position:relative}
.nav-mega[data-open="true"] .nav-link i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 16px);width:760px;
  background:var(--ink-800);border:1px solid var(--line);border-radius:20px;padding:26px;
  display:grid;grid-template-columns:1.35fr 1fr;gap:28px;
  opacity:0;visibility:hidden;transform:translateY(-4px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
  box-shadow:0 30px 60px -30px rgba(0,0,0,.9);
}
.nav-mega[data-open="true"] .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col-title{
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-muted);
  font-family:var(--font-num);margin-bottom:14px;
}
.mega-links{display:flex;flex-direction:column;gap:4px}
.mega-link{display:flex;gap:12px;padding:11px 12px;border-radius:14px;transition:background .22s ease}
.mega-link:hover{background:rgba(255,255,255,.05)}
.ml-ico{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;background:var(--volt-dim);color:var(--volt);
  display:grid;place-items:center;font-size:14px;
}
.mega-link b{display:block;font-size:14.5px;font-weight:600;color:#fff}
.mega-link small{display:block;font-size:12px;color:var(--text-muted);line-height:1.6;margin-top:2px}
.mega-post{display:block;padding:12px 0;border-bottom:1px solid var(--line);transition:color .22s ease}
.mega-post:last-of-type{border-bottom:none}
.mega-post b{display:block;font-size:14px;font-weight:600;color:rgba(255,255,255,.9);transition:color .22s ease}
.mega-post:hover b{color:var(--volt)}
.mega-post span{display:block;font-size:12px;color:var(--text-muted);margin-top:4px}

.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:#fff;cursor:pointer;place-items:center;
}
.nav-toggle:focus-visible{outline:2px solid var(--volt);outline-offset:2px}

.mobile-drawer{
  position:fixed;inset:0;z-index:120;background:var(--ink-900);
  padding:32px 24px;display:flex;flex-direction:column;gap:8px;
  transform:translateY(-100%);opacity:0;visibility:hidden;
  transition:transform .32s cubic-bezier(.2,.7,.2,1),opacity .32s ease,visibility .32s ease;
}
.mobile-drawer.is-open{transform:translateY(0);opacity:1;visibility:visible}
.mobile-drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:transparent;color:#fff;cursor:pointer}
.mobile-drawer a.drawer-link{
  font-size:20px;font-weight:700;padding:14px 0;border-bottom:1px solid var(--line);color:rgba(255,255,255,.9);
}
.mobile-drawer a.drawer-link.is-active{color:var(--volt)}
.mobile-drawer .drawer-sub{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-muted);margin:22px 0 6px;font-family:var(--font-num)}
.mobile-drawer a.drawer-child{display:block;font-size:15px;padding:10px 0;color:var(--text-muted)}
.mobile-drawer a.drawer-child.is-active{color:var(--volt)}
.drawer-cta{margin-top:auto;padding-top:24px}

@media(max-width:1023px){
  .nav-main{display:none}
  .nav-toggle{display:grid}
}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  padding:64px 0 78px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,15,.72) 0%,rgba(11,13,15,.86) 55%,rgba(11,13,15,.96) 100%);
}
.hero-inner{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1fr;gap:52px;align-items:center}
@media(min-width:1024px){.hero-grid{grid-template-columns:1.15fr .85fr;gap:64px}}
.hero h1{
  font-size:clamp(34px,5.2vw,64px);font-weight:800;line-height:1.08;letter-spacing:-.03em;color:#fff;
  margin:6px 0 20px;
}
.hero h1 em{font-style:normal;color:var(--volt)}
.hero-lead{font-size:clamp(16px,1.6vw,18px);color:rgba(255,255,255,.72);max-width:600px;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-meta{display:flex;flex-wrap:wrap;gap:24px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.hero-meta div{font-size:13px;color:var(--text-muted)}
.hero-meta b{display:block;font-family:var(--font-num);font-size:20px;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:-.02em}

.hero-card{
  background:var(--ink-800);border:1px solid var(--line);border-radius:20px;overflow:hidden;
  transition:transform .35s ease,border-color .35s ease;
}
.hero-card:hover{transform:translateY(-4px);border-color:var(--volt)}
.hero-card-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.hero-card-media img{width:100%;height:100%;object-fit:cover;filter:brightness(.88);transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.hero-card:hover .hero-card-media img{transform:scale(1.04)}
.hero-card-media .badge-live{position:absolute;top:14px;left:14px}
.hero-card-body{padding:22px 24px 24px}
.hero-card-title{font-size:19px;font-weight:700;color:#fff;margin:12px 0 8px;letter-spacing:-.01em}
.hero-card-body p{font-size:14px;color:var(--text-muted);line-height:1.8}
.hero-scale{display:flex;gap:3px;margin-top:18px}
.hero-scale i{flex:1;height:3px;border-radius:2px;background:var(--line)}
.hero-scale i.on{background:var(--volt)}

/* ===== 条带式要点 ===== */
.strips{display:grid;grid-template-columns:1fr;gap:0;border-top:1px solid var(--line)}
@media(min-width:640px){.strips{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.strips{grid-template-columns:repeat(4,1fr)}}
.strip{padding:28px 0 28px;border-bottom:1px solid var(--line);position:relative;transition:transform .35s ease}
@media(min-width:640px){.strip{padding:30px 22px 30px 0}}
@media(min-width:1024px){.strip{padding:34px 26px 34px 0}}
.strip:hover{transform:translateX(6px)}
.strip .num{font-family:var(--font-num);font-size:13px;color:var(--volt);letter-spacing:.12em;font-variant-numeric:tabular-nums}
.strip h3{font-size:18px;font-weight:700;color:#fff;margin:12px 0 8px}
.strip p{font-size:14px;color:var(--text-muted);line-height:1.8}

/* ===== 时间轴 ===== */
.timeline{position:relative;margin-top:8px}
.timeline::before{
  content:"";position:absolute;top:0;bottom:0;left:50%;width:1px;background:var(--line);transform:translateX(-50%);
}
.tl-item{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;padding:40px 0}
.tl-item::after{
  content:"";position:absolute;top:50%;left:50%;width:12px;height:12px;border-radius:50%;
  background:var(--volt);transform:translate(-50%,-50%);
  box-shadow:0 0 0 6px var(--ink-900),0 0 0 7px var(--line);z-index:3;
}
.tl-media{position:relative;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line)}
.tl-media img{width:100%;aspect-ratio:16/9;object-fit:cover;filter:brightness(.88);transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.tl-item:hover .tl-media img{transform:scale(1.04)}
.tl-text .tl-step{
  font-family:var(--font-num);font-size:12px;letter-spacing:.14em;color:var(--ember);
  text-transform:uppercase;font-variant-numeric:tabular-nums;
}
.tl-text h3{font-size:22px;font-weight:700;color:#fff;margin:12px 0 10px;letter-spacing:-.01em}
.tl-text p{font-size:15px;color:var(--text-muted);line-height:1.85}
.tl-item:nth-child(even) .tl-media{order:2}
.tl-item:nth-child(even) .tl-text{order:1}

@media(max-width:1023px){
  .timeline::before{left:7px;transform:none}
  .tl-item{grid-template-columns:1fr;gap:20px;padding:26px 0 26px 34px}
  .tl-item::after{left:7px;top:34px;transform:translate(-50%,0)}
  .tl-item:nth-child(even) .tl-media,
  .tl-item:nth-child(even) .tl-text{order:0}
  .tl-media{order:1}
  .tl-text{order:2}
}

/* ===== 维度卡片 ===== */
.grid-cards{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:640px){.grid-cards{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.grid-cards.four{grid-template-columns:repeat(4,1fr)}}
.card{
  background:var(--ink-800);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 24px;
  transition:transform .32s ease,border-color .32s ease,background .32s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--volt)}
.card .card-ico{
  width:42px;height:42px;border-radius:12px;background:var(--volt-dim);color:var(--volt);
  display:grid;place-items:center;font-size:16px;margin-bottom:18px;
}
.card h3{font-size:18px;font-weight:700;color:#fff;margin-bottom:10px}
.card p{font-size:14px;color:var(--text-muted);line-height:1.8}
.card ul{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.card ul li{font-size:13.5px;color:rgba(255,255,255,.7);padding-left:16px;position:relative}
.card ul li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:1px;background:var(--volt)}

/* ===== 数据条 ===== */
.stats{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--ink-800)}
@media(min-width:1024px){.stats{grid-template-columns:repeat(4,1fr)}}
.stat{padding:28px 22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat:last-child{border-right:none}
.stat b{
  display:block;font-family:var(--font-num);font-size:clamp(28px,3.6vw,40px);font-weight:700;
  color:var(--volt);letter-spacing:-.03em;font-variant-numeric:tabular-nums;line-height:1.1;
}
.stat span{display:block;margin-top:10px;font-size:13.5px;color:var(--text-muted)}
@media(min-width:1024px){.stat{border-bottom:none}}
@media(max-width:1023px){
  .stat:nth-child(2n){border-right:none}
  .stat:nth-last-child(-n+2){border-bottom:none}
}

/* ===== 图文错位 ===== */
.split{display:grid;grid-template-columns:1fr;gap:40px;align-items:center}
@media(min-width:1024px){.split{grid-template-columns:1.02fr .98fr;gap:72px}}
.split.reverse .split-media{order:2}
.split.reverse .split-body{order:1}
@media(max-width:1023px){
  .split.reverse .split-media,.split.reverse .split-body{order:0}
}
.split-media{border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line)}
.split-media img{width:100%;aspect-ratio:3/2;object-fit:cover;filter:brightness(.88);transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.split-media:hover img{transform:scale(1.04)}
.split-body h2{font-size:clamp(24px,2.8vw,34px);font-weight:700;line-height:1.2;letter-spacing:-.02em;color:#fff;margin-bottom:16px}
.split-body p{color:var(--text-muted);font-size:15.5px;margin-bottom:14px}
.ticks{display:flex;flex-direction:column;gap:14px;margin-top:22px}
.tick{display:flex;gap:14px;padding-top:14px;border-top:1px solid var(--line)}
.tick i{color:var(--volt);margin-top:6px;font-size:13px}
.tick b{display:block;font-size:15px;color:#fff;font-weight:600}
.tick small{display:block;font-size:13.5px;color:var(--text-muted);line-height:1.75;margin-top:2px}

/* ===== FAQ（浅区） ===== */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{
  border-bottom:1px solid var(--line-light);padding:6px 0;
}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 0;font-size:18px;font-weight:700;color:var(--text-strong);line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .faq-ico{
  flex:0 0 30px;width:30px;height:30px;border-radius:50%;border:1px solid var(--line-light);
  display:grid;place-items:center;color:var(--text-muted);font-size:13px;
  transition:transform .3s ease,background .3s ease,color .3s ease,border-color .3s ease;
}
.faq-item[open] summary .faq-ico{transform:rotate(45deg);background:var(--volt);color:var(--text-strong);border-color:var(--volt)}
.faq-item p{padding:0 0 24px;color:var(--text-muted);font-size:15.5px;line-height:1.85;max-width:790px}
.faq-item summary:focus-visible{outline:2px solid var(--volt);outline-offset:4px}

/* ===== CTA ===== */
.cta-band{
  background:var(--ink-800);border:1px solid var(--line);border-radius:24px;
  padding:40px 28px;display:grid;grid-template-columns:1fr;gap:28px;align-items:center;
}
@media(min-width:1024px){.cta-band{grid-template-columns:1fr 1fr;padding:52px 48px;gap:48px}}
.cta-band h2{font-size:clamp(24px,2.8vw,34px);font-weight:700;color:#fff;line-height:1.2;letter-spacing:-.02em}
.cta-band p{color:var(--text-muted);margin-top:12px;font-size:15px}
.inline-form{display:flex;flex-wrap:wrap;gap:12px}
.inline-form input{
  flex:1 1 240px;height:48px;border-radius:999px;padding:0 22px;
  background:var(--ink-700);border:1px solid var(--line);color:#fff;font-size:15px;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.inline-form input::placeholder{color:var(--text-muted)}
.inline-form input:focus{
  outline:none;border-color:var(--volt);box-shadow:0 0 0 3px rgba(201,244,91,.16);
}
.inline-form input:disabled{opacity:.4}
.form-status{font-size:13px;margin-top:12px;min-height:20px;color:var(--text-muted)}
.form-status.is-ok{color:var(--ok)}
.form-status.is-err{color:var(--warn)}
.privacy-note{font-size:12.5px;color:var(--text-muted);margin-top:8px}

/* ===== 面包屑 ===== */
.crumb{font-size:13px;color:var(--text-muted);padding:20px 0 0}
.crumb a{color:var(--text-muted);transition:color .22s ease}
.crumb a:hover{color:var(--volt)}
.crumb span.sep{margin:0 8px;opacity:.6}
.crumb .current{color:rgba(255,255,255,.78)}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink-900);border-top:1px solid var(--line);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:40px}
@media(min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.4fr}}
.footer-brand p{color:var(--text-muted);font-size:14px;margin-top:16px;max-width:320px;line-height:1.8}
.footer-title{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-muted);font-family:var(--font-num);margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.72);transition:color .22s ease}
.footer-links a:hover{color:var(--volt)}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-muted);margin-bottom:18px}
.footer-contact i{color:var(--volt);margin-right:8px;font-size:12px}
.footer-form{display:flex;gap:10px}
.footer-form input{
  flex:1;height:44px;border-radius:999px;padding:0 18px;background:var(--ink-700);
  border:1px solid var(--line);color:#fff;font-size:14px;transition:border-color .25s ease,box-shadow .25s ease;
}
.footer-form input::placeholder{color:var(--text-muted)}
.footer-form input:focus{outline:none;border-color:var(--volt);box-shadow:0 0 0 3px rgba(201,244,91,.16)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:var(--text-muted);
}
.footer-bottom a{color:var(--text-muted);transition:color .22s ease}
.footer-bottom a:hover{color:var(--volt)}

/* ===== 动效 ===== */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s cubic-bezier(.2,.7,.2,1),transform .6s cubic-bezier(.2,.7,.2,1)}
.reveal.is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category4 */
:root{
  --ink-900:#0B0D0F;
  --ink-800:#14171B;
  --ink-700:#1C2026;
  --line:#262B33;
  --paper:#F5F5F1;
  --paper-2:#FFFFFF;
  --text-strong:#14171B;
  --text-muted:#5E646E;
  --line-light:#E3E4DE;
  --volt:#C9F45B;
  --ember:#FF6B35;
  --volt-dim:rgba(201,244,91,.14);
  --ok:#3FBF7F;
  --warn:#E4572E;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","Space Grotesk",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.85;
  color:#E9EBE6;
  background:var(--ink-900);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1.1em;}
h1,h2,h3,h4{margin:0;}
.num,.tabular{font-family:var(--font-num);font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 48px;}
.section{padding:112px 0;}
.section-sm{padding:80px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--volt);font-family:var(--font-num);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--volt);display:inline-block;}
.h2{font-size:clamp(28px,3.6vw,44px);font-weight:700;line-height:1.15;letter-spacing:-.02em;}
.h3{font-size:clamp(20px,2vw,24px);font-weight:600;line-height:1.3;}
.lead{color:#A6ACB4;font-size:17px;}
.muted{color:var(--text-muted);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,13,15,0);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.is-scrolled{
  background:rgba(11,13,15,.92);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.nav-inner{display:flex;align-items:center;gap:32px;height:76px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:var(--volt);color:var(--ink-900);
  font-family:var(--font-num);font-weight:800;font-size:14px;letter-spacing:.02em;
}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-.01em;color:#fff;}
.brand-text span{color:var(--volt);}
.nav-main{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:9px 14px;border-radius:999px;
  font-size:15px;color:#C4C9CF;background:transparent;border:0;cursor:pointer;
  transition:color .25s ease,background .25s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05);}
.nav-link.is-active{color:#fff;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--volt);border-radius:2px;
}
.nav-mega{position:relative;}
.mega-toggle i{font-size:10px;transition:transform .25s ease;}
.nav-mega[data-open="true"] .mega-toggle i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:760px;max-width:calc(100vw - 48px);
  display:grid;grid-template-columns:1.15fr .85fr;gap:28px;
  padding:26px;border:1px solid var(--line);border-radius:var(--r-lg);
  background:var(--ink-800);
  opacity:0;visibility:hidden;transform:translateY(-4px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.nav-mega:hover .mega-panel,
.nav-mega[data-open="true"] .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col-title{
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--text-muted);font-family:var(--font-num);margin-bottom:14px;
}
.mega-links{display:grid;gap:6px;}
.mega-link{
  display:flex;gap:12px;align-items:flex-start;
  padding:10px 12px;border-radius:var(--r-sm);
  transition:background .2s ease;
}
.mega-link:hover{background:rgba(255,255,255,.05);}
.mega-link.is-active{background:var(--volt-dim);}
.ml-ico{
  width:32px;height:32px;flex-shrink:0;border-radius:9px;
  display:grid;place-items:center;background:var(--ink-700);
  color:var(--volt);font-size:13px;
}
.mega-link b{display:block;font-size:14.5px;font-weight:600;color:#fff;line-height:1.5;}
.mega-link small{display:block;font-size:12.5px;color:var(--text-muted);line-height:1.6;}
.mega-post{
  display:block;padding:12px 0;border-bottom:1px solid var(--line);
}
.mega-post:last-of-type{border-bottom:0;}
.mega-post b{display:block;font-size:14px;font-weight:600;color:#E9EBE6;line-height:1.55;}
.mega-post span{font-size:12.5px;color:var(--text-muted);}
.mega-entry{
  margin-top:14px;display:flex;gap:12px;align-items:center;
  padding:12px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--ink-700);
}
.mega-entry img{width:60px;height:44px;object-fit:cover;border-radius:8px;}
.mega-entry b{display:block;font-size:13.5px;font-weight:600;color:#fff;}
.mega-entry span{font-size:12px;color:var(--text-muted);}
.nav-cta{
  margin-left:8px;padding:11px 22px;border-radius:999px;
  background:var(--volt);color:var(--ink-900);font-weight:600;font-size:14.5px;
  border:1px solid var(--volt);transition:all .25s ease;
}
.nav-cta:hover{background:transparent;color:var(--volt);}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:transparent;
  align-items:center;justify-content:center;font-size:16px;cursor:pointer;
}
.drawer{
  position:fixed;inset:0;z-index:90;background:rgba(11,13,15,.98);
  display:none;flex-direction:column;padding:24px 22px 32px;
}
.drawer.is-open{display:flex;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:transparent;font-size:16px;cursor:pointer;
}
.drawer-nav{display:grid;gap:4px;}
.drawer-nav a.d-main{
  font-size:20px;font-weight:600;padding:14px 4px;border-bottom:1px solid var(--line);color:#fff;
}
.drawer-nav a.d-sub{
  font-size:15px;color:#A6ACB4;padding:10px 4px 10px 18px;
}
.drawer-cta{margin-top:auto;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:all .25s ease;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--volt);color:var(--ink-900);border-color:var(--volt);}
.btn-primary:hover{background:transparent;color:var(--volt);}
.btn-ghost{background:transparent;color:#fff;border-color:var(--line);}
.btn-ghost:hover{border-color:var(--volt);color:var(--volt);}
.btn-sm{padding:11px 20px;font-size:14px;}
.link-more{display:inline-flex;align-items:center;gap:8px;color:var(--volt);font-weight:600;font-size:14.5px;}
.link-more i{transition:transform .25s ease;}
.link-more:hover i{transform:translateX(4px);}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  background:var(--volt-dim);color:var(--volt);
  font-size:12px;letter-spacing:.04em;font-weight:600;
}
.badge-live{background:var(--ember);color:#fff;}
.dot{width:6px;height:6px;border-radius:50%;background:#fff;animation:pulse 2s infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.35;}}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:96px 0 84px;
  background-color:var(--ink-900);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  filter:saturate(.7) brightness(.75);
}
.hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,15,.72) 0%,rgba(11,13,15,.86) 60%,var(--ink-900) 100%);
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.25fr .75fr;gap:56px;align-items:center;}
.hero h1{
  font-size:clamp(40px,6vw,72px);font-weight:800;letter-spacing:-.03em;line-height:1.05;
  color:#fff;margin:20px 0 22px;
}
.hero h1 em{font-style:normal;color:var(--volt);}
.hero-sub{color:#B7BDC4;font-size:17.5px;max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:26px;margin-top:34px;padding-top:26px;border-top:1px solid var(--line);}
.hero-meta div span{display:block;font-size:12px;letter-spacing:.1em;color:var(--text-muted);text-transform:uppercase;font-family:var(--font-num);}
.hero-meta div b{font-size:16px;font-weight:600;color:#fff;}
.spec-card{
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:rgba(20,23,27,.88);padding:26px;backdrop-filter:blur(6px);
}
.spec-card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.spec-card-head b{font-size:15px;color:#fff;}
.spec-row{
  display:flex;align-items:flex-start;gap:14px;
  padding:14px 0;border-top:1px solid var(--line);
}
.spec-row i{color:var(--volt);font-size:14px;margin-top:5px;}
.spec-row b{display:block;font-size:15px;color:#fff;font-weight:600;}
.spec-row span{font-size:13px;color:var(--text-muted);line-height:1.7;}

/* ---------- compare strip ---------- */
.compare-strip{
  display:grid;grid-template-columns:1.15fr 1fr 1fr;
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  background:var(--ink-800);
}
.compare-col{padding:34px 30px;border-left:1px solid var(--line);}
.compare-col:first-child{border-left:0;}
.compare-col.is-featured{background:linear-gradient(180deg,rgba(201,244,91,.08),rgba(201,244,91,0));}
.compare-col h3{font-size:21px;font-weight:700;color:#fff;margin:12px 0 6px;}
.compare-col .tier-note{font-size:13px;color:var(--text-muted);min-height:44px;}
.compare-list{margin-top:18px;display:grid;gap:10px;}
.compare-list li{font-size:14px;color:#C4C9CF;display:flex;gap:9px;line-height:1.7;}
.compare-list li i{color:var(--volt);font-size:12px;margin-top:6px;}

/* ---------- params ---------- */
.param-list{border-top:1px solid var(--line);}
.param-row{
  display:grid;grid-template-columns:280px 1fr;gap:32px;
  padding:26px 0;border-bottom:1px solid var(--line);
  transition:padding-left .3s ease;
}
.param-row:hover{padding-left:10px;}
.param-row .p-name{font-size:17px;font-weight:600;color:#fff;}
.param-row .p-name span{display:block;font-size:12px;letter-spacing:.12em;color:var(--text-muted);font-family:var(--font-num);margin-top:6px;}
.param-row .p-body{color:#B7BDC4;font-size:15.5px;}

/* ---------- scenes ---------- */
.scene{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  background:var(--ink-800);
}
.scene + .scene{margin-top:22px;}
.scene.rev .scene-media{order:2;}
.scene-media{position:relative;min-height:260px;}
.scene-media img{width:100%;height:100%;object-fit:cover;filter:brightness(.88);transition:transform .6s cubic-bezier(.2,.7,.2,1);}
.scene:hover .scene-media img{transform:scale(1.04);}
.scene-body{padding:40px 38px;display:flex;flex-direction:column;justify-content:center;}
.scene-body h3{font-size:23px;font-weight:700;color:#fff;margin:14px 0 12px;}
.scene-body p{color:#A6ACB4;font-size:15.5px;margin:0;}

/* ---------- steps ---------- */
.steps{border-top:1px solid var(--line);}
.step{
  display:grid;grid-template-columns:120px 1fr 1fr;gap:28px;align-items:center;
  padding:30px 0;border-bottom:1px solid var(--line);
  transition:transform .3s ease;
}
.step:hover{transform:translateX(6px);}
.step .s-num{font-family:var(--font-num);font-size:38px;font-weight:800;color:var(--volt);letter-spacing:-.04em;}
.step b{font-size:19px;color:#fff;font-weight:600;}
.step p{margin:0;color:#A6ACB4;font-size:15px;}

/* ---------- light section ---------- */
.light{background:var(--paper);color:var(--text-strong);}
.light .h2,.light h3{color:var(--text-strong);}
.light .lead{color:var(--text-muted);}
.light .eyebrow{color:#7B8A2E;}
.light .eyebrow::before{background:#7B8A2E;}

/* ---------- faq ---------- */
.faq{max-width:900px;border-top:1px solid var(--line-light);}
.faq-item{border-bottom:1px solid var(--line-light);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 4px;font-size:18px;font-weight:600;color:var(--text-strong);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-family:var(--font-num);font-size:22px;color:#8A8F83;
  transition:transform .25s ease,color .25s ease;line-height:1;
}
.faq-item[open] summary::after{transform:rotate(45deg);color:#7B8A2E;}
.faq-answer{padding:0 4px 26px;color:var(--text-muted);font-size:15.5px;line-height:1.85;}
.faq-answer p:last-child{margin-bottom:0;}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:var(--ink-800);
  padding:56px 52px;
  display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;
  background:radial-gradient(circle,rgba(201,244,91,.14),transparent 70%);
}
.cta-form{position:relative;display:flex;gap:12px;flex-wrap:wrap;}
.cta-form input{
  flex:1 1 240px;height:50px;padding:0 20px;border-radius:999px;
  background:var(--ink-700);border:1px solid var(--line);color:#fff;
  font-size:15px;outline:none;transition:border-color .25s ease,box-shadow .25s ease;
}
.cta-form input::placeholder{color:var(--text-muted);}
.cta-form input:focus{border-color:var(--volt);box-shadow:0 0 0 3px rgba(201,244,91,.16);}
.form-status{font-size:13.5px;margin-top:12px;min-height:20px;color:var(--text-muted);}
.form-status.is-ok{color:var(--ok);}
.form-status.is-err{color:var(--warn);}
.privacy{font-size:12.5px;color:var(--text-muted);margin-top:14px;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);border-top:1px solid var(--line);padding-top:74px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:52px;}
.footer-brand p{color:var(--text-muted);font-size:14.5px;margin-top:18px;max-width:320px;}
.footer-title{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:#fff;font-family:var(--font-num);margin-bottom:18px;}
.footer-links{display:grid;gap:12px;}
.footer-links a{font-size:14.5px;color:#A6ACB4;transition:color .25s ease;position:relative;}
.footer-links a:hover{color:var(--volt);}
.footer-contact{display:grid;gap:12px;font-size:14px;color:#A6ACB4;margin-bottom:18px;}
.footer-contact i{color:var(--volt);width:16px;}
.footer-form{display:flex;gap:10px;flex-wrap:wrap;}
.footer-form input{
  flex:1 1 160px;height:44px;padding:0 16px;border-radius:999px;
  background:var(--ink-700);border:1px solid var(--line);color:#fff;font-size:14px;outline:none;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.footer-form input::placeholder{color:var(--text-muted);}
.footer-form input:focus{border-color:var(--volt);box-shadow:0 0 0 3px rgba(201,244,91,.16);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  padding:22px 0 30px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-muted);
}
.footer-bottom a{color:var(--text-muted);}
.footer-bottom a:hover{color:var(--volt);}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s cubic-bezier(.2,.7,.2,1),transform .6s cubic-bezier(.2,.7,.2,1);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  .scene-media img,.step{transition:none;}
  .dot{animation:none;}
}

/* ---------- breadcrumb ---------- */
.crumb{font-size:13px;color:var(--text-muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-family:var(--font-num);}
.crumb a{color:#A6ACB4;}
.crumb a:hover{color:var(--volt);}
.crumb .sep{color:#3A4048;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 28px;}
  .nav-main{display:none;}
  .burger{display:inline-flex;}
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .compare-strip{grid-template-columns:1fr;}
  .compare-col{border-left:0;border-top:1px solid var(--line);}
  .compare-col:first-child{border-top:0;}
  .scene{grid-template-columns:1fr;}
  .scene.rev .scene-media{order:0;}
  .scene-media{min-height:220px;}
  .cta-band{grid-template-columns:1fr;padding:40px 30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .section{padding:84px 0;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .step{grid-template-columns:70px 1fr;gap:18px;align-items:start;}
  .step p{grid-column:2;}
  .param-row{grid-template-columns:1fr;gap:12px;}
  .hero{padding:64px 0 60px;}
  .section{padding:64px 0;}
  .section-sm{padding:56px 0;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .step{grid-template-columns:1fr;}
  .step p{grid-column:1;}
}