/* roulang page: index */
:root{
  --bg-0:#050B14;
  --bg-1:#0A1526;
  --panel:#0F1D33;
  --panel-2:#13253F;
  --primary:#20E3B2;
  --primary-2:#7CF7FF;
  --accent:#FF7A3D;
  --accent-2:#FFB020;
  --ink:#F4F8FF;
  --muted:#A7B6CC;
  --dim:#6E7E96;
  --line:rgba(124,247,255,.16);
  --glass:rgba(15,29,51,.58);
  --glow:0 0 0 1px rgba(32,227,178,.42),0 0 28px rgba(32,227,178,.22),0 12px 40px rgba(0,0,0,.45);
  --radius:18px;
  --shadow:0 12px 32px rgba(0,0,0,.35);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 16px;}
@media(min-width:768px){.container{padding:0 24px;}}
@media(min-width:1024px){.container{padding:0 32px;}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(5,11,20,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);}
.site-header.scrolled{background:rgba(5,11,20,.95);box-shadow:0 10px 30px rgba(0,0,0,.45);}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;min-width:0;}
.brand-mark{
  width:38px;height:38px;flex:none;border-radius:11px;display:grid;place-items:center;
  font-weight:800;font-size:14px;letter-spacing:.5px;color:#04121A;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 0 18px rgba(32,227,178,.35);
}
.brand-text{font-size:17px;font-weight:750;letter-spacing:.4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
@media(min-width:768px){.brand-text{font-size:19px;}}
.brand-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--glass);color:var(--ink);}
.nav-toggle span{display:block;width:16px;height:2px;background:currentColor;border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;border-radius:2px;}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}
@media(min-width:1024px){.nav-toggle{display:none;}}
.channel-bar{border-top:1px solid rgba(124,247,255,.08);}
.channel-inner{display:flex;gap:8px;align-items:center;overflow-x:auto;padding:10px 16px;scrollbar-width:none;}
.channel-inner::-webkit-scrollbar{display:none;}
@media(min-width:768px){.channel-inner{padding:10px 24px;}}
@media(min-width:1024px){.channel-inner{padding:10px 32px;}}
.channel{
  flex:none;padding:7px 16px;border-radius:999px;font-size:14px;color:var(--muted);
  border:1px solid transparent;white-space:nowrap;transition:.22s;
}
.channel:hover{color:var(--ink);border-color:var(--line);background:rgba(19,37,63,.6);}
.channel.active{color:#04121A;background:linear-gradient(135deg,var(--primary),var(--primary-2));font-weight:650;box-shadow:0 0 18px rgba(32,227,178,.3);}
@media(max-width:1023px){
  .channel-bar{max-height:0;overflow:hidden;transition:max-height .3s ease;}
  .channel-bar.open{max-height:340px;}
  .channel-inner{flex-direction:column;align-items:stretch;gap:6px;padding:12px 16px 16px;overflow:visible;}
  .channel{text-align:left;padding:11px 14px;border-radius:12px;border-color:rgba(124,247,255,.10);}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:12px;font-size:15px;font-weight:650;
  border:1px solid transparent;transition:transform .18s,box-shadow .22s,background .22s,color .22s;
}
.btn:focus-visible{outline:2px solid var(--primary-2);outline-offset:2px;}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#04121A;box-shadow:0 0 0 1px rgba(32,227,178,.35),0 0 26px rgba(32,227,178,.30);}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(32,227,178,.5),0 0 34px rgba(32,227,178,.45);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:rgba(15,29,51,.55);border-color:var(--line);color:var(--ink);backdrop-filter:blur(12px);}
.btn-ghost:hover{border-color:rgba(32,227,178,.55);background:rgba(19,37,63,.75);transform:translateY(-1px);}
.btn-accent{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#21100A;box-shadow:0 0 22px rgba(255,122,61,.32);}
.btn-accent:hover{transform:translateY(-1px);box-shadow:0 0 30px rgba(255,122,61,.45);}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:10px;}
.btn-block{width:100%;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;opacity:.42;}
.hero-mask{position:absolute;inset:0;background:
  radial-gradient(900px 460px at 18% 18%,rgba(32,227,178,.20),transparent 62%),
  radial-gradient(760px 420px at 88% 8%,rgba(255,122,61,.16),transparent 60%),
  linear-gradient(180deg,rgba(5,11,20,.72),rgba(5,11,20,.95) 72%,var(--bg-0));}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(124,247,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(124,247,255,.055) 1px,transparent 1px);background-size:56px 56px;mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 88%);}
.hero-slash{position:absolute;top:-10%;left:-14%;width:56%;height:130%;transform:rotate(16deg);background:linear-gradient(90deg,transparent,rgba(124,247,255,.09),transparent);filter:blur(24px);}
.hero-inner{position:relative;display:grid;grid-template-columns:1fr;gap:36px;padding:56px 0 64px;}
@media(min-width:1024px){.hero-inner{grid-template-columns:7fr 5fr;gap:48px;padding:88px 0 96px;}}
.hero-badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:12.5px;border:1px solid var(--line);background:rgba(15,29,51,.62);color:var(--primary-2);}
.badge-accent{color:var(--accent-2);border-color:rgba(255,176,32,.32);}
.badge-dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);}
h1.hero-title{font-size:clamp(30px,5vw,54px);font-weight:800;line-height:1.12;letter-spacing:-.5px;}
h1.hero-title em{font-style:normal;background:linear-gradient(120deg,var(--primary),var(--primary-2));-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{margin-top:18px;font-size:16px;line-height:1.85;color:var(--muted);max-width:620px;}
@media(min-width:768px){.hero-sub{font-size:17px;}}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:34px;max-width:560px;}
@media(min-width:640px){.hero-stats{grid-template-columns:repeat(4,minmax(0,1fr));}}
.hero-stat{padding:12px 14px;border-radius:14px;border:1px solid var(--line);background:rgba(15,29,51,.5);}
.hero-stat b{display:block;font-size:20px;font-weight:750;color:var(--primary-2);}
.hero-stat span{font-size:12.5px;color:var(--dim);}
.glass-card{
  border-radius:22px;border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(16px);box-shadow:var(--shadow);padding:22px;
}
.glass-card h2{font-size:19px;font-weight:700;}
.ring-wrap{display:flex;align-items:center;gap:16px;}
.ring{
  width:86px;height:86px;flex:none;border-radius:50%;
  background:conic-gradient(var(--primary) 0deg 248deg,rgba(124,247,255,.14) 248deg 360deg);
  display:grid;place-items:center;box-shadow:0 0 24px rgba(32,227,178,.28);
}
.ring i{width:68px;height:68px;border-radius:50%;background:#0A1526;display:grid;place-items:center;font-style:normal;font-weight:750;font-size:15px;color:var(--primary-2);}
.entry-list{margin-top:18px;display:grid;gap:10px;}
.entry-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 14px;border-radius:12px;background:rgba(19,37,63,.66);border:1px solid rgba(124,247,255,.10);font-size:14px;}
.entry-item strong{font-weight:650;color:var(--ink);}
.entry-item span{font-size:12.5px;color:var(--dim);}

/* ---------- sections ---------- */
section{position:relative;}
.section{padding:56px 0;}
@media(min-width:768px){.section{padding:72px 0;}}
@media(min-width:1024px){.section{padding:88px 0;}}
.section-alt{background:linear-gradient(180deg,var(--bg-0),var(--bg-1) 40%,var(--bg-0));}
.section-head{max-width:720px;margin-bottom:32px;}
.eyebrow{display:inline-block;font-size:12.5px;letter-spacing:2px;text-transform:uppercase;color:var(--primary);margin-bottom:12px;}
.section-head h2{font-size:clamp(23px,3.4vw,34px);font-weight:750;line-height:1.25;}
.section-head p{margin-top:12px;color:var(--muted);font-size:15.5px;}

/* ---------- steps ---------- */
.steps{display:grid;gap:18px;grid-template-columns:1fr;}
@media(min-width:768px){.steps{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.steps{grid-template-columns:repeat(4,minmax(0,1fr));}}
.step{position:relative;padding:22px 20px 24px;border-radius:var(--radius);border:1px solid var(--line);background:var(--panel);box-shadow:var(--shadow);transition:transform .22s,border-color .22s,box-shadow .22s;}
.step:hover{transform:translateY(-4px);border-color:rgba(32,227,178,.48);box-shadow:0 18px 40px rgba(0,0,0,.45);}
.step-num{font-size:26px;font-weight:800;color:rgba(124,247,255,.30);letter-spacing:1px;}
.step h3{margin-top:10px;font-size:18px;font-weight:680;}
.step p{margin-top:10px;font-size:14.5px;color:var(--muted);}
.step-line{position:absolute;right:-11px;top:44px;width:22px;height:1px;background:linear-gradient(90deg,var(--line),transparent);display:none;}
@media(min-width:1024px){.step-line{display:block;}}
.step:last-child .step-line{display:none;}

/* ---------- reward rail ---------- */
.rail{display:flex;gap:18px;overflow-x:auto;padding:6px 2px 22px;scroll-snap-type:x mandatory;}
.rail::-webkit-scrollbar{height:6px;}
.rail::-webkit-scrollbar-track{background:rgba(124,247,255,.06);border-radius:999px;}
.rail::-webkit-scrollbar-thumb{background:rgba(32,227,178,.4);border-radius:999px;}
.reward-card{flex:0 0 78%;max-width:340px;scroll-snap-align:start;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--panel);box-shadow:var(--shadow);transition:transform .22s,border-color .22s;}
@media(min-width:640px){.reward-card{flex:0 0 46%;}}
@media(min-width:1024px){.reward-card{flex:0 0 30%;}}
.reward-card:hover{transform:translateY(-4px);border-color:rgba(32,227,178,.45);}
.reward-media{position:relative;aspect-ratio:16/10;overflow:hidden;}
.reward-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s;}
.reward-card:hover .reward-media img{transform:scale(1.05);}
.reward-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 35%,rgba(10,21,38,.92));}
.reward-tag{position:absolute;top:12px;left:12px;z-index:2;padding:4px 10px;border-radius:999px;font-size:12px;background:rgba(5,11,20,.72);border:1px solid var(--line);color:var(--primary-2);}
.reward-tag.hot{color:var(--accent-2);border-color:rgba(255,176,32,.36);}
.reward-body{padding:16px 18px 20px;}
.reward-body h3{font-size:17px;font-weight:680;}
.reward-body p{margin-top:8px;font-size:14px;color:var(--muted);}
.reward-meta{display:flex;justify-content:space-between;gap:10px;margin-top:14px;padding-top:12px;border-top:1px solid rgba(124,247,255,.10);font-size:12.5px;color:var(--dim);}

/* ---------- progress ---------- */
.progress-grid{display:grid;gap:22px;grid-template-columns:1fr;}
@media(min-width:1024px){.progress-grid{grid-template-columns:7fr 5fr;}}
.panel{border-radius:var(--radius);border:1px solid var(--line);background:var(--panel);box-shadow:var(--shadow);padding:24px;}
@media(min-width:768px){.panel{padding:28px;}}
.bar{height:10px;border-radius:999px;background:rgba(124,247,255,.10);overflow:hidden;margin-top:10px;}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--primary-2));box-shadow:0 0 16px rgba(32,227,178,.55);}
.bar.accent i{background:linear-gradient(90deg,var(--accent),var(--accent-2));box-shadow:0 0 16px rgba(255,122,61,.5);}
.bar-row + .bar-row{margin-top:20px;}
.bar-label{display:flex;justify-content:space-between;font-size:14px;color:var(--muted);}
.bar-label b{color:var(--ink);font-weight:650;}
.stage-list{margin-top:22px;display:grid;gap:14px;}
.stage{display:flex;gap:12px;align-items:flex-start;}
.stage-dot{width:11px;height:11px;border-radius:50%;margin-top:7px;flex:none;background:var(--dim);}
.stage.done .stage-dot{background:var(--primary);box-shadow:0 0 12px rgba(32,227,178,.7);}
.stage.now .stage-dot{background:var(--accent);box-shadow:0 0 12px rgba(255,122,61,.7);}
.stage b{font-size:15px;font-weight:650;}
.stage p{font-size:13.5px;color:var(--dim);}
.rank-item{display:flex;align-items:center;gap:12px;padding:11px 0;border-bottom:1px dashed rgba(124,247,255,.12);}
.rank-item:last-child{border-bottom:none;}
.rank-no{width:26px;height:26px;flex:none;border-radius:8px;display:grid;place-items:center;font-size:13px;font-weight:700;background:rgba(19,37,63,.9);border:1px solid var(--line);color:var(--primary-2);}
.rank-name{flex:1;font-size:14.5px;}
.rank-val{font-size:13.5px;color:var(--accent-2);}

/* ---------- news ---------- */
.news-grid{display:grid;gap:20px;grid-template-columns:1fr;}
@media(min-width:1024px){.news-grid{grid-template-columns:7fr 5fr;}}
.news-feature{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--panel);box-shadow:var(--shadow);transition:transform .22s,border-color .22s;}
.news-feature:hover{transform:translateY(-3px);border-color:rgba(32,227,178,.45);}
.news-feature .media{aspect-ratio:16/9;overflow:hidden;}
.news-feature .media img{width:100%;height:100%;object-fit:cover;transition:transform .4s;}
.news-feature:hover .media img{transform:scale(1.04);}
.news-feature .body{padding:22px;}
.news-feature h3{font-size:21px;font-weight:700;line-height:1.4;}
.news-feature p{margin-top:12px;color:var(--muted);font-size:15px;}
.meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:14px;font-size:12.5px;color:var(--dim);}
.meta .chip{padding:3px 10px;border-radius:999px;border:1px solid var(--line);background:rgba(19,37,63,.7);color:var(--primary-2);}
.news-list{display:grid;gap:14px;}
.news-item{display:grid;grid-template-columns:104px 1fr;gap:14px;padding:12px;border-radius:16px;border:1px solid var(--line);background:var(--panel);transition:transform .2s,border-color .2s;}
.news-item:hover{transform:translateY(-2px);border-color:rgba(32,227,178,.42);}
.news-item .thumb{aspect-ratio:4/3;border-radius:11px;overflow:hidden;background:var(--panel-2);}
.news-item .thumb img{width:100%;height:100%;object-fit:cover;}
.news-item h4{font-size:15.5px;font-weight:650;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item p{margin-top:6px;font-size:13px;color:var(--dim);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.empty-state{padding:36px 22px;text-align:center;border-radius:16px;border:1px dashed rgba(124,247,255,.24);background:rgba(15,29,51,.5);color:var(--muted);font-size:15px;}

/* ---------- proof ---------- */
.proof-grid{display:grid;gap:18px;grid-template-columns:repeat(2,minmax(0,1fr));}
@media(min-width:1024px){.proof-grid{grid-template-columns:repeat(4,minmax(0,1fr));}}
.proof{padding:22px;border-radius:var(--radius);border:1px solid var(--line);background:var(--panel-2);text-align:left;}
.proof b{display:block;font-size:28px;font-weight:800;color:var(--primary-2);}
.proof span{display:block;margin-top:6px;font-size:13.5px;color:var(--dim);}
.quote-grid{display:grid;gap:18px;grid-template-columns:1fr;margin-top:20px;}
@media(min-width:768px){.quote-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.quote{padding:20px;border-radius:var(--radius);border:1px solid var(--line);background:var(--panel);}
.quote p{font-size:14.5px;color:var(--muted);}
.quote footer{margin-top:14px;font-size:13px;color:var(--primary-2);}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto;display:grid;gap:12px;}
details.faq{border-radius:16px;border:1px solid var(--line);background:var(--glass);backdrop-filter:blur(12px);overflow:hidden;}
details.faq[open]{border-color:rgba(32,227,178,.45);box-shadow:0 0 0 1px rgba(32,227,178,.18);}
details.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:18px 20px;font-size:16.5px;font-weight:640;
}
details.faq summary::-webkit-details-marker{display:none;}
.faq-icon{width:26px;height:26px;flex:none;border-radius:8px;border:1px solid var(--line);display:grid;place-items:center;color:var(--primary);transition:transform .25s;font-size:16px;line-height:1;}
details.faq[open] .faq-icon{transform:rotate(45deg);}
.faq-body{padding:0 20px 20px;color:var(--muted);font-size:15px;}

/* ---------- cta ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:24px;border:1px solid var(--line);background:linear-gradient(135deg,rgba(19,37,63,.95),rgba(10,21,38,.95));padding:34px 24px;box-shadow:var(--glow);}
@media(min-width:768px){.cta-band{padding:46px 44px;}}
.cta-band::before{content:"";position:absolute;width:420px;height:420px;right:-140px;top:-190px;border-radius:50%;background:radial-gradient(circle,rgba(32,227,178,.26),transparent 68%);}
.cta-band::after{content:"";position:absolute;width:360px;height:360px;left:-150px;bottom:-200px;border-radius:50%;background:radial-gradient(circle,rgba(255,122,61,.20),transparent 68%);}
.cta-inner{position:relative;display:flex;flex-direction:column;gap:22px;align-items:flex-start;justify-content:space-between;}
@media(min-width:1024px){.cta-inner{flex-direction:row;align-items:center;}}
.cta-inner h2{font-size:clamp(22px,3vw,30px);font-weight:760;line-height:1.3;}
.cta-inner p{margin-top:12px;color:var(--muted);font-size:15px;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- footer ---------- */
.site-footer{position:relative;margin-top:20px;border-top:1px solid var(--line);background:linear-gradient(180deg,var(--bg-0),#030711);}
.footer-grid{display:grid;gap:30px;grid-template-columns:1fr;padding:52px 0 34px;}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1.2fr;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{width:34px;height:34px;font-size:13px;}
.footer-brand b{font-size:17px;font-weight:700;}
.footer-col h3{font-size:14.5px;font-weight:680;margin-bottom:14px;color:var(--ink);}
.footer-col p,.footer-col a{font-size:13.5px;color:var(--dim);line-height:2;}
.footer-col a{display:block;transition:color .2s;}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{border-top:1px solid rgba(124,247,255,.10);padding:20px 0 30px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:var(--dim);}

/* ---------- mobile sticky cta ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(5,11,20,.88);backdrop-filter:blur(14px);border-top:1px solid var(--line);
  transform:translateY(120%);transition:transform .3s ease;display:flex;gap:10px;align-items:center;
}
.sticky-cta.show{transform:translateY(0);}
.sticky-cta .btn{flex:1;}
@media(min-width:1024px){.sticky-cta{display:none;}}

/* roulang page: article */
:root{
  --bg-0:#050B14;--bg-1:#0A1526;--panel:#0F1D33;--panel-2:#13253F;
  --primary:#20E3B2;--primary-2:#7CF7FF;--accent:#FF7A3D;--accent-2:#FFB020;
  --ink:#F4F8FF;--muted:#A7B6CC;--dim:#6E7E96;
  --line:rgba(124,247,255,.16);--line-strong:rgba(32,227,178,.42);
  --glass:rgba(15,29,51,.58);
  --glow:0 0 0 1px rgba(32,227,178,.42),0 0 28px rgba(32,227,178,.22),0 12px 40px rgba(0,0,0,.45);
  --shadow:0 12px 32px rgba(0,0,0,.35);
  --r-lg:20px;--r-md:14px;--r-sm:8px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg-0);color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.75;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4{margin:0;line-height:1.2;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 16px}
@media(min-width:768px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}
.tnum{font-variant-numeric:tabular-nums}
.bg-hud{
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 420px at 12% -8%,rgba(32,227,178,.16),transparent 62%),
    radial-gradient(700px 380px at 92% 4%,rgba(124,247,255,.12),transparent 60%),
    linear-gradient(rgba(124,247,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(124,247,255,.045) 1px,transparent 1px);
  background-size:auto,auto,48px 48px,48px 48px;
}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,13,24,.72);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(124,247,255,.10);
  transition:background .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{background:rgba(5,11,20,.92);border-bottom-color:var(--line-strong)}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;padding-top:10px;padding-bottom:10px}
.brand{display:inline-flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;flex:0 0 auto;
  font-weight:800;font-size:15px;letter-spacing:.04em;color:#04121A;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 0 22px rgba(32,227,178,.35);
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:var(--glass);align-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--primary-2)}
.channel-bar{border-top:1px solid rgba(124,247,255,.08)}
.channel-inner{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;padding-top:8px;padding-bottom:8px}
.channel-inner::-webkit-scrollbar{display:none}
.channel{
  flex:0 0 auto;padding:8px 16px;border-radius:999px;font-size:14px;font-weight:600;
  color:var(--muted);border:1px solid transparent;white-space:nowrap;
  transition:all .2s ease;
}
.channel:hover{color:var(--ink);border-color:var(--line);background:rgba(19,37,63,.55)}
.channel.active{
  color:#04121A;background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 0 20px rgba(32,227,178,.32);
}
@media(max-width:860px){
  .channel-bar{display:none}
  .channel-bar.open{display:block}
  .channel-inner{flex-wrap:wrap;overflow:visible}
  .channel{background:rgba(19,37,63,.6);border-color:var(--line)}
}
@media(min-width:861px){.nav-toggle{display:none}}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:12px;font-size:15px;font-weight:700;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:10px}
.btn-primary{
  color:#04121A;background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 0 0 1px rgba(32,227,178,.35),0 10px 30px rgba(32,227,178,.28);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(32,227,178,.6),0 14px 36px rgba(32,227,178,.4)}
.btn-primary:active{transform:translateY(1px)}
.btn-accent{
  color:#1B0A02;background:linear-gradient(135deg,var(--accent),var(--accent-2));
  box-shadow:0 10px 28px rgba(255,122,61,.3);
}
.btn-accent:hover{transform:translateY(-1px);box-shadow:0 14px 34px rgba(255,122,61,.42)}
.btn-ghost{
  color:var(--ink);background:var(--glass);border-color:var(--line);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.btn-ghost:hover{border-color:var(--line-strong);color:var(--primary-2);transform:translateY(-1px)}

/* ============ Common bits ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;color:var(--primary-2);
  background:rgba(32,227,178,.10);border:1px solid var(--line);
}
.tag-accent{color:var(--accent-2);background:rgba(255,176,32,.10);border-color:rgba(255,176,32,.26)}
.panel{
  background:linear-gradient(160deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);
}
.glass{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:var(--shadow);
}
.section{padding:56px 0}
@media(min-width:768px){.section{padding:76px 0}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.section-title{font-size:clamp(22px,3vw,32px);font-weight:700;letter-spacing:.01em}
.section-sub{color:var(--muted);font-size:14.5px;margin-top:8px;max-width:640px}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent)}

/* ============ Breadcrumb ============ */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dim);padding:18px 0 0}
.crumbs a:hover{color:var(--primary-2)}
.crumbs .sep{color:rgba(110,126,150,.7)}
.crumbs .now{color:var(--primary-2);max-width:min(100%,520px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ Article ============ */
.article-hero{padding:26px 0 8px}
.article-hero h1{
  font-size:clamp(26px,4vw,44px);font-weight:800;line-height:1.16;letter-spacing:.005em;
  margin-top:16px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;font-size:13px;color:var(--muted)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--dim)}
.article-layout{display:grid;grid-template-columns:1fr;gap:28px;margin-top:34px}
@media(min-width:1024px){.article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:34px}}
.article-card{padding:26px 22px}
@media(min-width:768px){.article-card{padding:40px 44px}}
.article-body{max-width:820px;font-size:16.5px;color:#DCE6F5}
.article-body>*+*{margin-top:1em}
.article-body p{line-height:1.85;color:#D5E1F2}
.article-body h2{
  font-size:clamp(21px,2.6vw,27px);font-weight:700;color:var(--ink);
  margin-top:2.1em;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),var(--primary-2));box-shadow:0 0 14px rgba(32,227,178,.55);
}
.article-body h3{font-size:19px;font-weight:650;color:var(--ink);margin-top:1.7em}
.article-body a{color:var(--primary-2);border-bottom:1px solid rgba(124,247,255,.35)}
.article-body a:hover{color:var(--primary);border-bottom-color:var(--primary)}
.article-body ul,.article-body ol{padding-left:22px;line-height:1.85}
.article-body ul li{list-style:none;position:relative;padding-left:16px;margin:.4em 0;color:#D5E1F2}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.68em;width:7px;height:7px;border-radius:2px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 0 10px rgba(32,227,178,.6);
}
.article-body ol{counter-reset:li}
.article-body ol li{list-style:decimal;margin:.4em 0;color:#D5E1F2}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;border-radius:var(--r-md);
  background:rgba(15,29,51,.72);border:1px solid var(--line);
  border-left:3px solid var(--primary);box-shadow:inset 0 0 26px rgba(32,227,178,.08);
  color:var(--muted);
}
.article-body img{border-radius:var(--r-md);border:1px solid var(--line);margin:1.6em auto}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:14.5px;overflow:hidden;border-radius:var(--r-md)}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:rgba(32,227,178,.10);color:var(--primary-2);font-weight:700}
.article-body td{color:var(--muted)}
.article-body hr{border:0;height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);margin:2em 0}
.article-body code{
  background:rgba(124,247,255,.10);border:1px solid var(--line);border-radius:6px;
  padding:1px 6px;font-size:14px;color:var(--primary-2);
}
.article-body pre{
  background:rgba(5,11,20,.85);border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;overflow:auto;
}
.article-body pre code{background:none;border:0;padding:0;color:#D5E1F2}
.empty-state{padding:44px 12px;text-align:center}
.empty-state .ico{
  width:56px;height:56px;margin:0 auto 16px;border-radius:18px;display:flex;align-items:center;justify-content:center;
  background:rgba(32,227,178,.10);border:1px solid var(--line);color:var(--primary-2);font-size:22px;font-weight:800;
}

/* ============ Sidebar ============ */
.side-stack{display:grid;gap:18px}
.side-card{padding:20px}
.side-title{font-size:15px;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary)}
.side-list{margin-top:14px;display:grid;gap:10px}
.side-link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 13px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:rgba(19,37,63,.5);font-size:14px;color:var(--muted);
  transition:all .2s ease;
}
.side-link:hover{color:var(--ink);border-color:var(--line-strong);transform:translateX(2px)}
.side-link span.arw{color:var(--primary);font-weight:700}

/* ============ Related ============ */
.rel-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:700px){.rel-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.rel-card{overflow:hidden;display:flex;flex-direction:column;transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.rel-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--glow)}
.rel-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#0A1526}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.05)}
.rel-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(5,11,20,.82))}
.rel-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:16px;font-weight:650;line-height:1.45}
.rel-body p{font-size:13.5px;color:var(--muted);line-height:1.7}
.rel-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--dim)}

/* ============ FAQ ============ */
.faq-item{border:1px solid var(--line);border-radius:var(--r-md);background:var(--glass);margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item[open]{border-color:var(--line-strong);box-shadow:0 0 22px rgba(32,227,178,.16)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:16px 20px;font-size:16px;font-weight:650;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:700;color:var(--primary);line-height:1;
  transition:transform .25s ease,color .25s ease;
}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg);color:var(--primary-2)}
.faq-body{padding:0 20px 18px;color:var(--muted);font-size:14.8px;line-height:1.8}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;border:1px solid var(--line);
  padding:34px 24px;
  background:
    radial-gradient(620px 260px at 12% 0%,rgba(32,227,178,.20),transparent 62%),
    radial-gradient(520px 240px at 90% 100%,rgba(255,122,61,.16),transparent 60%),
    linear-gradient(160deg,var(--panel),#0A1526);
  box-shadow:var(--shadow);
}
@media(min-width:768px){.cta-band{padding:46px 48px}}
.cta-band h2{font-size:clamp(22px,3vw,32px);font-weight:800}
.cta-band p{color:var(--muted);margin-top:12px;max-width:640px}

/* ============ Footer ============ */
.site-footer{margin-top:72px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(15,29,51,.55),rgba(5,11,20,.95))}
.footer-grid{display:grid;gap:30px;padding:52px 0 34px;grid-template-columns:1fr}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr}}
.footer-brand{display:inline-flex;align-items:center;gap:12px}
.footer-desc{color:var(--muted);font-size:14px;line-height:1.8;margin-top:16px;max-width:340px}
.footer-title{font-size:14px;font-weight:700;color:var(--ink);letter-spacing:.04em}
.footer-links{margin-top:16px;display:grid;gap:10px}
.footer-links a{font-size:14px;color:var(--muted)}
.footer-links a:hover{color:var(--primary-2)}
.footer-bottom{
  border-top:1px solid rgba(124,247,255,.10);padding:18px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--dim);
}
.footer-bottom a:hover{color:var(--primary-2)}

/* ============ Mobile sticky CTA ============ */
.mobile-cta{
  position:fixed;left:12px;right:12px;bottom:12px;z-index:70;display:none;
  align-items:center;justify-content:space-between;gap:12px;
  padding:10px 12px 10px 18px;border-radius:16px;
  background:rgba(10,21,38,.86);border:1px solid var(--line-strong);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 14px 40px rgba(0,0,0,.5);
}
@media(max-width:767px){.mobile-cta{display:flex}}

/* roulang page: category1 */
:root{
  --bg-0:#050B14;--bg-1:#0A1526;--panel:#0F1D33;--panel-2:#13253F;
  --primary:#20E3B2;--primary-2:#7CF7FF;--accent:#FF7A3D;--accent-2:#FFB020;
  --ink:#F4F8FF;--muted:#A7B6CC;--dim:#6E7E96;
  --line:rgba(124,247,255,.16);--glass:rgba(15,29,51,.58);
  --glow:0 0 0 1px rgba(32,227,178,.42),0 0 28px rgba(32,227,178,.22),0 12px 40px rgba(0,0,0,.45);
  --radius:18px;
  --shadow-card:0 12px 32px rgba(0,0,0,.35);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg-0);color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(124,247,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(124,247,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 78%);
  mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 78%);
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
b,strong{font-weight:750}
:focus-visible{outline:2px solid var(--primary-2);outline-offset:2px;border-radius:8px}

body .container{width:100%;max-width:1240px;margin:0 auto;padding:0 16px;position:relative;z-index:1}
@media (min-width:768px){body .container{padding:0 24px}}
@media (min-width:1024px){body .container{padding:0 32px}}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(5,11,20,.74);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line);transition:background .3s}
.site-header.scrolled{background:rgba(5,11,20,.92)}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:14px;height:68px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{width:38px;height:38px;flex:0 0 38px;border-radius:12px;display:grid;place-items:center;font-size:14px;font-weight:800;letter-spacing:.5px;color:#04121A;background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 0 24px rgba(32,227,178,.35)}
.brand-text{font-size:16.5px;font-weight:750;letter-spacing:.3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-actions{display:flex;align-items:center;gap:10px}
.channel-bar{border-top:1px solid rgba(124,247,255,.08)}
.channel-inner{display:flex;align-items:center;gap:8px;overflow-x:auto;padding-top:8px;padding-bottom:8px;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel{flex:0 0 auto;padding:9px 16px;border-radius:999px;font-size:14px;color:var(--muted);border:1px solid transparent;transition:color .25s,background .25s,box-shadow .25s;white-space:nowrap}
.channel:hover{color:var(--ink);background:rgba(124,247,255,.08)}
.channel.active{color:#04121A;font-weight:700;background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 0 22px rgba(32,227,178,.3)}
.nav-toggle{display:none}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:12px;font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .25s,background .25s,color .25s,border-color .25s;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#04121A;box-shadow:0 8px 26px rgba(32,227,178,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(32,227,178,.45),0 0 26px rgba(32,227,178,.35)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px rgba(32,227,178,.3)}
.btn-ghost{background:rgba(15,29,51,.55);border-color:var(--line);color:var(--ink);backdrop-filter:blur(12px)}
.btn-ghost:hover{border-color:rgba(32,227,178,.55);color:var(--primary-2);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-accent{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#231000;box-shadow:0 8px 26px rgba(255,122,61,.28)}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(255,122,61,.42)}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:10px}
.btn-lg{height:54px;padding:0 30px;font-size:16.5px;border-radius:14px}

/* ---------- 标签 / 徽章 ---------- */
.tag{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;color:var(--primary-2);background:rgba(32,227,178,.1);border:1px solid rgba(32,227,178,.28)}
.tag-accent{color:var(--accent-2);background:rgba(255,122,61,.12);border-color:rgba(255,122,61,.32)}
.tag-muted{color:var(--muted);background:rgba(124,247,255,.06);border-color:var(--line)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;background:url(/assets/images/backpic/back-1.webp) center/cover no-repeat;opacity:.36}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,11,20,.7) 0%,rgba(5,11,20,.9) 55%,var(--bg-0) 100%)}
.hero-glow{position:absolute;right:-180px;top:-240px;width:640px;height:640px;border-radius:50%;background:radial-gradient(circle,rgba(32,227,178,.24),transparent 66%);pointer-events:none}
.hero-beam{position:absolute;left:-10%;top:26%;width:120%;height:120px;background:linear-gradient(90deg,transparent,rgba(124,247,255,.09),transparent);transform:rotate(-9deg);pointer-events:none}
.hero-inner{position:relative;z-index:2;display:grid;gap:34px;padding:34px 0 60px}
@media (min-width:1024px){.hero-inner{grid-template-columns:7fr 5fr;align-items:center;gap:48px;padding:52px 0 84px}}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--dim);margin-bottom:18px}
.crumb a:hover{color:var(--primary-2)}
.crumb span.sep{color:rgba(110,126,150,.7)}
.crumb .now{color:var(--primary-2)}
.hero h1{font-size:clamp(30px,5vw,52px);font-weight:800;line-height:1.12;letter-spacing:-.5px}
.hero h1 em{font-style:normal;color:var(--primary-2);text-shadow:0 0 24px rgba(124,247,255,.4)}
.hero-sub{margin-top:18px;font-size:clamp(15px,1.6vw,17.5px);color:var(--muted);max-width:620px;line-height:1.8}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.glass-card{background:var(--glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--line);border-radius:22px;padding:24px;box-shadow:var(--shadow-card);position:relative;overflow:hidden}
.glass-card::before{content:"";position:absolute;inset:0;background:radial-gradient(420px 200px at 100% 0%,rgba(32,227,178,.16),transparent 70%);pointer-events:none}
.glass-card > *{position:relative;z-index:1}
.ring{width:118px;height:118px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--primary) calc(var(--p,0) * 1%),rgba(124,247,255,.12) 0);box-shadow:0 0 30px rgba(32,227,178,.24)}
.ring-in{width:92px;height:92px;border-radius:50%;background:#0B1728;display:grid;place-items:center;text-align:center;line-height:1.25}
.ring-in b{display:block;font-size:20px;font-variant-numeric:tabular-nums}
.ring-in span{font-size:11px;color:var(--dim)}
.mini-list{display:grid;gap:10px;margin-top:20px}
.mini-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 14px;border-radius:12px;background:rgba(10,21,38,.66);border:1px solid rgba(124,247,255,.12);font-size:14px}
.mini-item b{font-variant-numeric:tabular-nums;color:var(--primary-2)}

/* ---------- 板块 ---------- */
.section{position:relative;padding:56px 0}
@media (min-width:1024px){.section{padding:82px 0}}
.section-alt{background:linear-gradient(180deg,rgba(10,21,38,.72),rgba(5,11,20,0));border-top:1px solid rgba(124,247,255,.08);border-bottom:1px solid rgba(124,247,255,.08)}
.section-head{max-width:760px;margin-bottom:34px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:2px;color:var(--primary-2);text-transform:uppercase}
.section-title{font-size:clamp(24px,3.4vw,34px);font-weight:750;line-height:1.24;margin:12px 0 12px}
.section-desc{color:var(--muted);font-size:15.5px;line-height:1.8}

/* ---------- 步骤 ---------- */
.steps{display:grid;gap:18px}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr)}}
.step{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;box-shadow:var(--shadow-card);transition:transform .28s,border-color .28s,box-shadow .28s}
.step:hover{transform:translateY(-4px);border-color:rgba(32,227,178,.45);box-shadow:0 20px 44px rgba(0,0,0,.5),0 0 24px rgba(32,227,178,.14)}
.step-num{font-size:13px;font-weight:800;letter-spacing:2px;color:var(--primary-2);font-variant-numeric:tabular-nums}
.step h3{font-size:19px;font-weight:700;margin:12px 0 10px}
.step p{color:var(--muted);font-size:14.5px;line-height:1.78}
.step-line{position:absolute;left:0;top:0;height:3px;width:52px;border-radius:0 0 6px 0;background:linear-gradient(90deg,var(--primary),transparent)}

/* ---------- 奖励轨道 ---------- */
.reward-track{display:flex;gap:20px;overflow-x:auto;padding:6px 4px 22px;scroll-snap-type:x mandatory;scrollbar-width:thin}
.reward-track::-webkit-scrollbar{height:8px}
.reward-track::-webkit-scrollbar-track{background:rgba(124,247,255,.06);border-radius:999px}
.reward-track::-webkit-scrollbar-thumb{background:linear-gradient(90deg,var(--primary),var(--primary-2));border-radius:999px}
.reward-card{flex:0 0 300px;scroll-snap-align:start;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .28s,border-color .28s,box-shadow .28s}
@media (min-width:768px){.reward-card{flex:0 0 330px}}
.reward-card:hover{transform:translateY(-4px);border-color:rgba(32,227,178,.45);box-shadow:0 20px 44px rgba(0,0,0,.5)}
.reward-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.reward-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.reward-card:hover .reward-thumb img{transform:scale(1.06)}
.reward-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,11,20,.15),rgba(5,11,20,.85))}
.reward-thumb .tag{position:absolute;left:14px;top:14px;z-index:2;backdrop-filter:blur(8px)}
.reward-body{padding:18px 20px 22px}
.reward-body h3{font-size:17.5px;font-weight:700}
.reward-body p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.72}
.reward-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:16px;padding-top:14px;border-top:1px dashed rgba(124,247,255,.14);font-size:12.5px;color:var(--dim)}

/* ---------- 进度面板 ---------- */
.panel-grid{display:grid;gap:22px}
@media (min-width:1024px){.panel-grid{grid-template-columns:8fr 4fr;align-items:start}}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-card)}
.panel h3{font-size:20px;font-weight:700;margin-bottom:6px}
.panel .hint{font-size:13.5px;color:var(--dim)}
.bar{height:9px;border-radius:999px;background:rgba(124,247,255,.1);overflow:hidden;margin-top:18px}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--primary-2));box-shadow:0 0 16px rgba(32,227,178,.6)}
.stage-list{display:grid;gap:14px;margin-top:24px}
.stage{display:flex;align-items:flex-start;gap:14px;padding:14px 16px;border-radius:14px;background:rgba(10,21,38,.6);border:1px solid rgba(124,247,255,.12)}
.stage-dot{width:12px;height:12px;flex:0 0 12px;border-radius:50%;margin-top:7px;background:var(--dim)}
.stage.done .stage-dot{background:var(--primary);box-shadow:0 0 12px var(--primary)}
.stage.now .stage-dot{background:var(--accent-2);box-shadow:0 0 14px var(--accent-2);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.35);opacity:.65}}
.stage h4{font-size:15.5px;font-weight:700}
.stage p{font-size:13.5px;color:var(--muted);margin-top:4px}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.stat{padding:16px;border-radius:14px;background:var(--panel-2);border:1px solid var(--line)}
.stat b{display:block;font-size:22px;font-variant-numeric:tabular-nums;color:var(--primary-2)}
.stat span{font-size:12.5px;color:var(--dim)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:880px}
.faq-item{background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--line);border-radius:16px;padding:0 20px;transition:border-color .3s,box-shadow .3s}
.faq-item[open]{border-color:rgba(32,227,178,.45);box-shadow:0 14px 36px rgba(0,0,0,.4)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0;cursor:pointer;font-size:16.5px;font-weight:650;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 18px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--primary-2);border-radius:2px;transition:transform .3s,opacity .3s}
.faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-body{padding:14px 0 20px;border-top:1px dashed rgba(124,247,255,.14);color:var(--muted);font-size:15px;line-height:1.82}

/* ---------- 频道卡 ---------- */
.channel-cards{display:grid;gap:20px}
@media (min-width:768px){.channel-cards{grid-template-columns:repeat(3,1fr)}}
.ccard{display:block;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .28s,border-color .28s,box-shadow .28s}
.ccard:hover{transform:translateY(-4px);border-color:rgba(32,227,178,.45);box-shadow:0 20px 44px rgba(0,0,0,.5)}
.ccard .thumb{aspect-ratio:16/9;overflow:hidden}
.ccard .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.ccard:hover .thumb img{transform:scale(1.06)}
.ccard-body{padding:20px}
.ccard-body h3{font-size:18px;font-weight:700}
.ccard-body p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.75}
.ccard-more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13.5px;font-weight:700;color:var(--primary-2)}

/* ---------- 底部 CTA ---------- */
.cta-band{position:relative;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:linear-gradient(135deg,#0A1526,#0F1D33 60%,#0A1526)}
.cta-band::before{content:"";position:absolute;left:50%;top:-140px;transform:translateX(-50%);width:720px;height:420px;background:radial-gradient(circle,rgba(32,227,178,.2),transparent 68%);pointer-events:none}
.cta-inner{position:relative;z-index:2;padding:60px 0;display:grid;gap:26px;text-align:center;justify-items:center}
@media (min-width:1024px){.cta-inner{padding:78px 0}}
.cta-inner h2{font-size:clamp(24px,3.6vw,36px);font-weight:800;line-height:1.25}
.cta-inner p{color:var(--muted);max-width:640px;font-size:15.5px}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;overflow:hidden;background:linear-gradient(180deg,var(--bg-1),var(--bg-0));border-top:1px solid var(--line)}
.site-footer::before{content:"";position:absolute;left:-140px;top:-180px;width:520px;height:420px;background:radial-gradient(circle,rgba(32,227,178,.14),transparent 68%);pointer-events:none}
.footer-grid{position:relative;z-index:2;display:grid;gap:34px;padding:56px 0 38px}
@media (min-width:768px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1.2fr}}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-title{font-size:14px;font-weight:750;letter-spacing:1px;color:var(--ink);margin-bottom:16px}
.footer-list{display:grid;gap:11px}
.footer-list a{font-size:14px;color:var(--muted);transition:color .25s,transform .25s;display:inline-block}
.footer-list a:hover{color:var(--primary-2);transform:translateX(3px)}
.footer-desc{font-size:14px;color:var(--muted);line-height:1.85;max-width:360px}
.footer-bottom{position:relative;z-index:2;border-top:1px solid rgba(124,247,255,.12);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;font-size:13px;color:var(--dim)}
.footer-bottom a:hover{color:var(--primary-2)}

/* ---------- 移动端吸底 CTA ---------- */
.float-cta{position:fixed;left:16px;right:16px;bottom:16px;z-index:70;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 12px 10px 18px;border-radius:16px;background:rgba(10,21,38,.9);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--line);box-shadow:0 18px 40px rgba(0,0,0,.5);transform:translateY(140%);opacity:0;transition:transform .35s,opacity .35s}
.float-cta.show{transform:translateY(0);opacity:1}
.float-cta span{font-size:13.5px;color:var(--muted)}
@media (min-width:1024px){.float-cta{left:auto;right:32px;bottom:32px;padding:12px 14px 12px 20px}}

@media (max-width:767px){
  .brand-text{font-size:15px}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:rgba(15,29,51,.65)}
  .nav-toggle span{display:block;position:relative;width:16px;height:2px;background:var(--ink);border-radius:2px}
  .nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--ink);border-radius:2px}
  .nav-toggle span::before{top:-5px}
  .nav-toggle span::after{top:5px}
  .channel-bar{display:none}
  .channel-bar.open{display:block;animation:fadeDown .25s ease}
  .channel-inner{padding-bottom:12px}
  .hero-cta .btn{flex:1 1 auto}
}
@keyframes fadeDown{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}

/* roulang page: category2 */
:root{
  --bg-0:#050B14;--bg-1:#0A1526;--panel:#0F1D33;--panel-2:#13253F;
  --primary:#20E3B2;--primary-2:#7CF7FF;--accent:#FF7A3D;--accent-2:#FFB020;
  --ink:#F4F8FF;--muted:#A7B6CC;--dim:#6E7E96;
  --line:rgba(124,247,255,.16);--line-strong:rgba(32,227,178,.42);
  --glass:rgba(15,29,51,.58);
  --radius:18px;--radius-sm:12px;--radius-xs:8px;
  --shadow:0 12px 32px rgba(0,0,0,.35);
  --shadow-lg:0 24px 60px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(32,227,178,.42),0 0 28px rgba(32,227,178,.22),0 12px 40px rgba(0,0,0,.45);
  --maxw:1240px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
.site-body{
  margin:0;background:var(--bg-0);color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.75;letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--primary-2);outline-offset:3px;border-radius:6px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:#04170f;padding:10px 18px;border-radius:0 0 10px 0;z-index:99;font-weight:700}
.skip-link:focus{left:0}

.container{width:100%;max-width:var(--maxw);margin-left:auto;margin-right:auto;padding-left:16px;padding-right:16px}
@media (min-width:768px){.container{padding-left:24px;padding-right:24px}}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px}}

/* ===== header ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:linear-gradient(180deg,rgba(5,11,20,.95),rgba(5,11,20,.80));
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.scrolled{background:rgba(5,11,20,.97);box-shadow:0 14px 40px rgba(0,0,0,.5)}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.brand{display:inline-flex;align-items:center;gap:12px}
.brand-mark{
  display:grid;place-items:center;width:40px;height:40px;border-radius:12px;
  font-weight:800;font-size:15px;letter-spacing:.06em;color:#04211a;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 0 22px rgba(32,227,178,.4);
}
.brand-text{font-weight:800;font-size:clamp(16px,2.3vw,19px);letter-spacing:.04em;white-space:nowrap}
.brand-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:44px;height:40px;border-radius:11px;
  border:1px solid var(--line);background:rgba(15,29,51,.7);place-items:center;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--primary-2)}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--primary-2);transition:transform .22s ease,top .22s ease}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.channel-bar{border-top:1px solid rgba(124,247,255,.08)}
.channel-inner{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel{
  position:relative;padding:13px 15px;font-size:14.5px;color:var(--muted);
  white-space:nowrap;border-radius:10px 10px 0 0;
  transition:color .2s ease,background .2s ease;
}
.channel:hover{color:var(--ink);background:rgba(32,227,178,.07)}
.channel.active{color:var(--primary-2);font-weight:700}
.channel.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
  box-shadow:0 0 12px rgba(32,227,178,.75);
}

/* ===== buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:12px;font-weight:700;font-size:15px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-lg{height:52px;padding:0 30px;font-size:16.5px;border-radius:14px}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#04211a;
  box-shadow:0 0 0 1px rgba(32,227,178,.42),0 10px 30px rgba(32,227,178,.26);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(124,247,255,.6),0 16px 40px rgba(32,227,178,.4)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:rgba(15,29,51,.62);border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--line-strong);background:rgba(19,37,63,.88);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-accent{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#2B0D02;box-shadow:0 10px 28px rgba(255,122,61,.3)}
.btn-accent:hover{transform:translateY(-1px);box-shadow:0 16px 36px rgba(255,122,61,.42)}

/* ===== hero ===== */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero .hero-bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.3;filter:saturate(1.15);
}
.page-hero .hero-mask{
  position:absolute;inset:0;
  background:
    radial-gradient(900px 420px at 12% 12%,rgba(32,227,178,.24),transparent 62%),
    radial-gradient(720px 400px at 90% 4%,rgba(124,247,255,.16),transparent 62%),
    linear-gradient(180deg,rgba(5,11,20,.72),rgba(5,11,20,.95) 76%,var(--bg-0));
}
.page-hero .hero-grid{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(124,247,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(124,247,255,.07) 1px,transparent 1px);
  background-size:52px 52px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 80%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 80%);
}
.page-hero .hero-inner{position:relative;z-index:2;padding:42px 0 52px}
.hero-title{
  margin:0 0 14px;font-size:clamp(28px,4.4vw,46px);font-weight:800;line-height:1.14;
  letter-spacing:.01em;text-wrap:balance;
}
.hero-title .hl{
  background:linear-gradient(120deg,var(--primary),var(--primary-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{margin:0 0 22px;max-width:720px;color:var(--muted);font-size:clamp(15px,1.6vw,17px)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

.chip{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;
  font-size:12.5px;line-height:1.6;color:var(--primary-2);
  background:rgba(32,227,178,.1);border:1px solid rgba(32,227,178,.28);
}
.chip-accent{color:var(--accent-2);background:rgba(255,122,61,.12);border-color:rgba(255,122,61,.3)}
.chip-muted{color:var(--muted);background:rgba(124,247,255,.06);border-color:var(--line)}
.chip-solid{color:#04211a;background:linear-gradient(135deg,var(--primary),var(--primary-2));border-color:transparent;font-weight:700}

/* ===== breadcrumb ===== */
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--dim);margin-bottom:18px}
.breadcrumb a{transition:color .2s ease}
.breadcrumb a:hover{color:var(--primary-2)}
.breadcrumb .sep{opacity:.55}
.breadcrumb .current{color:var(--primary-2)}

/* ===== sections ===== */
.section{padding:70px 0}
.section-tight{padding:54px 0}
.section-alt{background:linear-gradient(180deg,rgba(10,21,38,.75),rgba(5,11,20,.9));border-top:1px solid rgba(124,247,255,.08);border-bottom:1px solid rgba(124,247,255,.08)}
.section-head{max-width:780px;margin-bottom:34px}
.section-title{margin:0 0 12px;font-size:clamp(23px,3.2vw,33px);font-weight:800;line-height:1.28}
.section-sub{margin:0;color:var(--muted);font-size:15.5px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--primary);margin-bottom:12px;text-transform:uppercase}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),transparent)}

/* ===== intro ===== */
.intro-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:26px;align-items:start}
.point-list{display:flex;flex-direction:column;gap:14px;margin:0;padding:0;list-style:none}
.point-item{
  display:flex;gap:16px;padding:20px 22px;border-radius:var(--radius);
  background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.point-item:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-lg)}
.point-num{
  flex:0 0 auto;display:grid;place-items:center;width:40px;height:40px;border-radius:12px;
  font-weight:800;font-size:14px;color:#04211a;font-variant-numeric:tabular-nums;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
}
.point-body h3{margin:0 0 6px;font-size:17.5px;font-weight:700}
.point-body p{margin:0;color:var(--muted);font-size:14.8px;line-height:1.75}
.stat-panel{
  padding:26px;border-radius:var(--radius);background:var(--glass);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:18px}
.stat-cell{padding:16px;border-radius:var(--radius-sm);background:rgba(19,37,63,.7);border:1px solid rgba(124,247,255,.1)}
.stat-num{display:block;font-size:26px;font-weight:800;line-height:1.2;font-variant-numeric:tabular-nums;color:var(--primary-2)}
.stat-label{display:block;margin-top:4px;font-size:13px;color:var(--dim)}
.stat-panel h3{margin:0;font-size:18px;font-weight:700}
.stat-panel .stat-note{margin:8px 0 0;color:var(--muted);font-size:14.5px}

/* ===== filter ===== */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.filter-btn{
  padding:9px 18px;border-radius:999px;border:1px solid var(--line);
  background:rgba(15,29,51,.62);color:var(--muted);font-size:14px;
  transition:color .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.filter-btn:hover{color:var(--ink);border-color:var(--line-strong)}
.filter-btn.active{
  color:#04211a;font-weight:700;border-color:transparent;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 0 20px rgba(32,227,178,.35);
}

/* ===== timeline ===== */
.timeline{position:relative;padding-left:32px}
.timeline::before{
  content:"";position:absolute;left:7px;top:10px;bottom:10px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(32,227,178,.65),rgba(124,247,255,.06));
}
.tl-item{position:relative;margin-bottom:20px}
.tl-item:last-child{margin-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-32px;top:28px;width:16px;height:16px;border-radius:50%;
  background:var(--bg-0);border:2px solid var(--primary);
  box-shadow:0 0 16px rgba(32,227,178,.6);
}
.tl-card{
  padding:20px 22px;border-radius:var(--radius);background:var(--panel);
  border:1px solid var(--line);box-shadow:var(--shadow);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.tl-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-lg)}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:10px}
.tl-title{margin:0 0 8px;font-size:19px;font-weight:700;line-height:1.45}
.tl-text{margin:0 0 14px;color:var(--muted);font-size:15px;line-height:1.8}
.tl-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--primary);
  transition:color .2s ease,gap .2s ease;
}
.tl-link:hover{color:var(--primary-2);gap:10px}
.tl-empty{
  padding:26px;border-radius:var(--radius);border:1px dashed var(--line);
  color:var(--dim);text-align:center;font-size:14.5px;
}

/* ===== picks ===== */
.picks-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:22px}
.pick-main{
  position:relative;overflow:hidden;border-radius:var(--radius);border:1px solid var(--line);
  background:var(--panel);box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.pick-main:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-lg)}
.pick-main figure{margin:0;overflow:hidden}
.pick-main img{width:100%;height:250px;object-fit:cover;border-radius:0;transition:transform .45s ease}
.pick-main:hover img{transform:scale(1.04)}
.pick-body{padding:22px 24px 24px}
.pick-body h3{margin:10px 0 10px;font-size:22px;font-weight:800;line-height:1.4}
.pick-body p{margin:0;color:var(--muted);font-size:15px;line-height:1.78}
.pick-side{display:flex;flex-direction:column;gap:22px}
.pick-mini{
  display:flex;gap:16px;padding:18px;border-radius:var(--radius);
  background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.pick-mini:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-lg)}
.pick-mini img{flex:0 0 104px;width:104px;height:92px;object-fit:cover}
.pick-mini h4{margin:8px 0 6px;font-size:16.5px;font-weight:700;line-height:1.45}
.pick-mini p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}

/* ===== faq ===== */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item[open]{border-color:var(--line-strong);box-shadow:0 0 28px rgba(32,227,178,.14)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:19px 22px;font-size:16.5px;font-weight:650;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;color:var(--primary);font-size:22px;font-weight:400;line-height:1;
  transition:transform .25s ease,color .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--primary-2)}
.faq-body{padding:0 22px 22px;color:var(--muted);font-size:15px;line-height:1.8}

/* ===== related ===== */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rel-card{
  display:flex;flex-direction:column;gap:12px;padding:24px;border-radius:var(--radius);
  background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.rel-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-lg)}
.rel-card.current{border-color:var(--line-strong);box-shadow:var(--glow)}
.rel-card h3{margin:0;font-size:19px;font-weight:800}
.rel-card p{margin:0;color:var(--muted);font-size:14.5px;line-height:1.75}
.rel-more{margin-top:auto;font-size:14px;font-weight:700;color:var(--primary)}

/* ===== cta ===== */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;border:1px solid var(--line-strong);
  background:linear-gradient(135deg,rgba(17,40,64,.96),rgba(8,18,33,.98));
  padding:48px 44px;box-shadow:var(--glow);
}
.cta-band::before{
  content:"";position:absolute;width:420px;height:420px;right:-120px;top:-190px;border-radius:50%;
  background:radial-gradient(circle,rgba(32,227,178,.3),transparent 68%);
}
.cta-band::after{
  content:"";position:absolute;width:320px;height:320px;left:-140px;bottom:-200px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,61,.24),transparent 68%);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-inner h2{margin:0 0 10px;font-size:clamp(23px,3vw,32px);font-weight:800;line-height:1.3}
.cta-inner p{margin:0;color:var(--muted);font-size:15.5px;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ===== footer ===== */
.site-footer{
  margin-top:0;padding:62px 0 30px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,21,38,.7),rgba(5,11,20,1) 62%);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:34px}
.foot-desc{margin:16px 0 0;color:var(--muted);font-size:14.5px;line-height:1.8;max-width:330px}
.foot-title{margin:0 0 16px;font-size:14px;font-weight:800;letter-spacing:.1em;color:var(--primary-2)}
.foot-link{display:block;padding:5px 0;color:var(--muted);font-size:14.5px;transition:color .2s ease,transform .2s ease}
.foot-link:hover{color:var(--primary-2);transform:translateX(3px)}
.foot-note{margin:0 0 10px;color:var(--muted);font-size:14.5px;line-height:1.8}
.foot-note strong{color:var(--ink);font-weight:700}
.foot-bottom{
  margin-top:42px;padding-top:22px;border-top:1px solid rgba(124,247,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  color:var(--dim);font-size:13px;
}
.foot-bottom a:hover{color:var(--primary-2)}

/* ===== mobile cta ===== */
.mobile-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(5,11,20,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
}
.mobile-cta .btn{width:100%}

/* ===== responsive ===== */
@media (max-width:1023px){
  .intro-grid{grid-template-columns:1fr}
  .picks-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .nav-toggle{display:grid}
  .channel-bar{overflow:hidden;max-height:56px;transition:max-height .28s ease}
  .channel-bar.expanded{max-height:340px;overflow-y:auto}
  .channel-inner{flex-wrap:nowrap}
  .channel-bar.expanded .channel-inner{flex-direction:column;align-items:stretch;gap:2px;padding-top:6px;padding-bottom:12px}
  .channel-bar.expanded .channel{text-align:left;border-radius:10px;padding:12px 14px}
  .channel-bar.expanded .channel.active{background:rgba(32,227,178,.1)}
  .channel-bar.expanded .channel.active::after{display:none}
  .section{padding:52px 0}
  .section-tight{padding:44px 0}
  .page-hero .hero-inner{padding:30px 0 42px}
  .cta-band{padding:34px 22px;border-radius:20px}
  .picks-grid{gap:18px}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .site-footer{padding-bottom:100px}
  .pick-main img{height:196px}
  .timeline{padding-left:26px}
  .timeline::before{left:5px}
  .tl-item::before{left:-26px;width:14px;height:14px;top:26px}
  .stat-grid{grid-template-columns:1fr 1fr}
  .mobile-cta{display:block}
}
@media (max-width:520px){
  .brand-text{font-size:15px}
  .brand-mark{width:36px;height:36px;font-size:13.5px}
  .stat-grid{grid-template-columns:1fr}
  .pick-mini{flex-direction:column}
  .pick-mini img{flex:none;width:100%;height:150px}
  .hero-actions .btn{width:100%}
}

/* roulang page: category3 */
:root{
  --bg-0:#050B14;
  --bg-1:#0A1526;
  --panel:#0F1D33;
  --panel-2:#13253F;
  --primary:#20E3B2;
  --primary-2:#7CF7FF;
  --accent:#FF7A3D;
  --accent-2:#FFB020;
  --ink:#F4F8FF;
  --muted:#A7B6CC;
  --dim:#6E7E96;
  --line:rgba(124,247,255,.16);
  --glass:rgba(15,29,51,.58);
  --glow:0 0 0 1px rgba(32,227,178,.42),0 0 28px rgba(32,227,178,.22),0 12px 40px rgba(0,0,0,.45);
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 12px 32px rgba(0,0,0,.35);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    radial-gradient(920px 520px at 10% -8%,rgba(32,227,178,.13),transparent 62%),
    radial-gradient(780px 460px at 92% 4%,rgba(124,247,255,.10),transparent 64%),
    linear-gradient(rgba(124,247,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(124,247,255,.045) 1px,transparent 1px);
  background-size:auto,auto,68px 68px,68px 68px;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary-2);outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 16px;position:relative;z-index:1}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,11,20,.72);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{background:rgba(5,11,20,.92);box-shadow:0 14px 34px rgba(0,0,0,.42)}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:16px;height:70px}
.brand{display:inline-flex;align-items:center;gap:12px}
.brand-mark{
  flex:0 0 auto;width:40px;height:40px;border-radius:13px;
  display:grid;place-items:center;
  font-weight:800;font-size:14px;letter-spacing:.5px;color:#04211B;
  background:linear-gradient(140deg,var(--primary),var(--primary-2));
  box-shadow:0 0 18px rgba(32,227,178,.35);
}
.brand-text{font-size:18px;font-weight:800;letter-spacing:.4px;color:var(--ink);white-space:nowrap}
.brand-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:rgba(15,29,51,.6);
  cursor:pointer;place-items:center;position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";display:block;width:17px;height:2px;border-radius:2px;
  background:var(--primary-2);transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle span::before{transform:translateY(-6px)}
.nav-toggle span::after{transform:translateY(4px)}
.channel-bar{border-top:1px solid var(--line);background:rgba(10,21,38,.55)}
.channel-inner{display:flex;align-items:center;gap:8px;height:54px;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel{
  position:relative;display:inline-flex;align-items:center;
  padding:9px 16px;border-radius:999px;font-size:14.5px;font-weight:600;
  color:var(--muted);white-space:nowrap;
  transition:color .22s ease,background .22s ease,box-shadow .22s ease;
}
.channel:hover{color:var(--ink);background:rgba(32,227,178,.09)}
.channel.active{
  color:#04211B;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 0 20px rgba(32,227,178,.38);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:700;letter-spacing:.2px;cursor:pointer;
  transition:transform .18s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#04211B;
  box-shadow:0 0 0 1px rgba(32,227,178,.5),0 0 26px rgba(32,227,178,.3);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(32,227,178,.72),0 0 36px rgba(32,227,178,.45)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:rgba(15,29,51,.5);border-color:var(--line);color:var(--ink);
  backdrop-filter:blur(12px);
}
.btn-ghost:hover{border-color:rgba(32,227,178,.55);background:rgba(19,37,63,.72);color:#fff}
.btn-accent{
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#2B1206;
  box-shadow:0 0 0 1px rgba(255,122,61,.45),0 0 24px rgba(255,122,61,.26);
}
.btn-accent:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,176,32,.6),0 0 32px rgba(255,122,61,.4)}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:10px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.help-hero{min-height:340px;display:flex;align-items:center}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  filter:saturate(.9);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(5,11,20,.78),rgba(5,11,20,.92)),
    linear-gradient(115deg,rgba(32,227,178,.14),transparent 55%);
}
.hero-inner{position:relative;z-index:2;padding:46px 0 52px}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--dim);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb a{color:var(--muted);transition:color .2s ease}
.breadcrumb a:hover{color:var(--primary-2)}
.breadcrumb .sep{color:rgba(110,126,150,.7)}
.breadcrumb .current{color:var(--primary)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.6px;
  color:var(--primary-2);
  background:rgba(32,227,178,.1);
  border:1px solid rgba(32,227,178,.28);
}
.hero h1{
  margin:20px 0 16px;
  font-size:clamp(28px,4.6vw,50px);
  font-weight:800;line-height:1.14;letter-spacing:.2px;
  max-width:900px;
}
.hero h1 em{font-style:normal;color:var(--primary-2)}
.hero-sub{max-width:720px;font-size:16.5px;color:var(--muted);line-height:1.85}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:999px;
  font-size:13px;font-weight:600;color:var(--muted);
  background:rgba(15,29,51,.62);border:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.pill b{color:var(--primary-2);font-weight:700}

/* ---------- sections ---------- */
.section{padding:64px 0}
@media (min-width:1024px){.section{padding:86px 0}}
.section-alt{background:linear-gradient(180deg,rgba(10,21,38,.55),rgba(5,11,20,0))}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{
  font-size:clamp(23px,3.2vw,34px);font-weight:700;line-height:1.25;
  letter-spacing:.2px;
}
.section-head p{margin-top:12px;color:var(--muted);font-size:15.5px}
.section-tag{
  display:inline-block;margin-bottom:14px;
  font-size:12.5px;font-weight:700;letter-spacing:2px;
  color:var(--primary);text-transform:uppercase;
}

/* ---------- search panel ---------- */
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
}
.search-panel{padding:28px 24px}
@media (min-width:768px){.search-panel{padding:36px 34px}}
.search-panel h2{font-size:clamp(21px,2.6vw,27px);font-weight:700}
.search-panel > p{margin-top:10px;color:var(--muted);font-size:15px;max-width:720px}
.search-form{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap}
.search-form input[type="search"]{
  flex:1 1 260px;min-width:0;height:50px;padding:0 18px;
  border-radius:12px;
  background:rgba(5,11,20,.66);
  border:1px solid var(--line);
  color:var(--ink);
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.search-form input[type="search"]::placeholder{color:var(--dim)}
.search-form input[type="search"]:focus{
  outline:none;border-color:rgba(32,227,178,.62);
  background:rgba(5,11,20,.85);
  box-shadow:0 0 0 3px rgba(32,227,178,.18);
}
.quick-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}
.quick-tag{
  padding:7px 14px;border-radius:999px;font-size:13px;color:var(--muted);
  background:rgba(19,37,63,.7);border:1px solid var(--line);cursor:pointer;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.quick-tag:hover{color:var(--ink);border-color:rgba(32,227,178,.5);background:rgba(32,227,178,.12)}
.search-empty{margin-top:18px;padding:14px 18px;border-radius:12px;font-size:14px;color:var(--accent-2);background:rgba(255,122,61,.1);border:1px solid rgba(255,122,61,.3)}

/* ---------- topic cards ---------- */
.grid-topics{display:grid;gap:18px;grid-template-columns:1fr}
@media (min-width:640px){.grid-topics{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.grid-topics{grid-template-columns:repeat(4,1fr)}}
.topic-card{
  display:flex;flex-direction:column;gap:12px;
  padding:24px 22px;border-radius:var(--radius);
  background:linear-gradient(160deg,var(--panel),rgba(10,21,38,.9));
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.topic-card:hover{transform:translateY(-3px);border-color:rgba(32,227,178,.48);box-shadow:0 18px 40px rgba(0,0,0,.45)}
.topic-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  font-weight:800;font-size:16px;color:#04211B;
  background:linear-gradient(140deg,var(--primary),var(--primary-2));
}
.topic-card h3{font-size:18px;font-weight:700}
.topic-card p{font-size:14.5px;color:var(--muted);line-height:1.8}
.topic-card .topic-meta{margin-top:auto;font-size:13px;color:var(--primary-2);font-weight:600}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;margin-top:30px}
.faq-item{
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:rgba(32,227,178,.34)}
.faq-item[open]{border-color:rgba(32,227,178,.5);box-shadow:0 14px 34px rgba(0,0,0,.42)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:flex-start;gap:14px;
  padding:18px 20px;
  font-size:16.5px;font-weight:650;line-height:1.6;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-index{
  flex:0 0 auto;font-size:13px;font-weight:800;color:var(--primary);
  font-variant-numeric:tabular-nums;padding-top:3px;
}
.faq-icon{
  margin-left:auto;flex:0 0 26px;width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;font-size:15px;font-weight:700;
  color:var(--primary);border:1px solid var(--line);
  transition:transform .25s ease,background .25s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:rgba(32,227,178,.14)}
.faq-body{
  padding:0 20px 20px 56px;
  color:var(--muted);font-size:15px;line-height:1.9;
  border-top:1px solid rgba(124,247,255,.08);
  margin-top:0;padding-top:14px;
}
@media (max-width:520px){
  .faq-body{padding-left:20px}
}

/* ---------- steps ---------- */
.steps{position:relative;display:grid;gap:20px;grid-template-columns:1fr;margin-top:34px}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr)}}
.step{
  position:relative;padding:26px 22px 24px;
  border-radius:var(--radius);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .22s ease,border-color .22s ease;
}
.step:hover{transform:translateY(-3px);border-color:rgba(124,247,255,.4)}
.step-num{
  font-size:13px;font-weight:800;letter-spacing:1px;color:var(--primary-2);
  font-variant-numeric:tabular-nums;
}
.step h3{margin:12px 0 10px;font-size:17.5px;font-weight:700}
.step p{font-size:14.5px;color:var(--muted);line-height:1.8}
.step::before{
  content:"";position:absolute;left:22px;top:0;transform:translateY(-50%);
  width:10px;height:10px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 14px rgba(32,227,178,.8);
}

/* ---------- judge cards ---------- */
.grid-judge{display:grid;gap:18px;grid-template-columns:1fr;margin-top:32px}
@media (min-width:900px){.grid-judge{grid-template-columns:repeat(3,1fr)}}
.judge-card{
  padding:26px 24px;border-radius:var(--radius);
  background:linear-gradient(155deg,var(--panel-2),rgba(10,21,38,.92));
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.judge-card .badge{margin-bottom:16px}
.judge-card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.judge-card p{font-size:14.5px;color:var(--muted);line-height:1.85}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:6px;font-size:12.5px;font-weight:700;
  background:rgba(32,227,178,.12);color:var(--primary);
  border:1px solid rgba(32,227,178,.3);
}
.badge-warn{background:rgba(255,176,32,.12);color:var(--accent-2);border-color:rgba(255,176,32,.32)}
.badge-hot{background:rgba(255,122,61,.12);color:var(--accent);border-color:rgba(255,122,61,.32)}

/* ---------- channel cards ---------- */
.grid-channels{display:grid;gap:22px;grid-template-columns:1fr}
@media (min-width:640px){.grid-channels{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.grid-channels{grid-template-columns:repeat(3,1fr)}}
.channel-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius);background:var(--panel);
  border:1px solid var(--line);box-shadow:var(--shadow);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.channel-card:hover{transform:translateY(-4px);border-color:rgba(32,227,178,.45);box-shadow:0 20px 46px rgba(0,0,0,.48)}
.channel-card figure{position:relative;aspect-ratio:16/10;overflow:hidden;margin:0}
.channel-card figure img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.channel-card:hover figure img{transform:scale(1.05)}
.channel-card figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,11,20,.1),rgba(5,11,20,.72));
}
.channel-card .card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.channel-card h3{font-size:18px;font-weight:700}
.channel-card p{font-size:14.5px;color:var(--muted);line-height:1.8}
.channel-card .card-link{margin-top:auto;font-size:14px;font-weight:700;color:var(--primary-2)}
.channel-card .card-link span{transition:transform .22s ease;display:inline-block}
.channel-card:hover .card-link span{transform:translateX(4px)}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid rgba(32,227,178,.28);
  background:linear-gradient(120deg,rgba(15,29,51,.92),rgba(10,21,38,.86));
  backdrop-filter:blur(16px);
  padding:38px 28px;
  box-shadow:var(--glow);
  display:flex;flex-direction:column;gap:24px;
}
@media (min-width:900px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:46px 44px}
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(32,227,178,.28),transparent 68%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,3vw,31px);font-weight:800;line-height:1.3;max-width:620px}
.cta-band p{margin-top:12px;color:var(--muted);font-size:15.5px;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2}

/* ---------- footer ---------- */
.site-footer{
  position:relative;z-index:1;
  margin-top:20px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,21,38,.6),rgba(5,11,20,.98));
  padding-top:58px;
}
.footer-grid{display:grid;gap:34px;grid-template-columns:1fr}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr}}
.footer-brand p{margin-top:16px;font-size:14.5px;color:var(--muted);line-height:1.85;max-width:360px}
.footer-domain{margin-top:14px;font-size:13px;color:var(--dim);letter-spacing:.4px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--ink)}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14.5px;color:var(--muted);transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-col a:hover{color:var(--primary-2);transform:translateX(3px)}
.footer-bottom{
  margin-top:46px;padding:22px 0 30px;
  border-top:1px solid rgba(124,247,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--dim);
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--primary-2)}

/* ---------- mobile nav ---------- */
@media (max-width:767px){
  .nav-toggle{display:inline-grid}
  .channel-bar{max-height:0;overflow:hidden;transition:max-height .34s ease;border-top-color:transparent}
  .channel-bar.open{max-height:400px;border-top-color:var(--line)}
  .channel-inner{
    flex-direction:column;align-items:stretch;height:auto;
    padding:12px 16px 18px;gap:6px;overflow:visible;
  }
  .channel{padding:12px 14px;border-radius:12px;font-size:15px}
  .brand-text{font-size:16.5px}
  .help-hero{min-height:300px}
}