/* roulang page: index */
:root{
  --bg-0:#060911;
  --bg-1:#0B1220;
  --bg-2:#101A2E;
  --glass:rgba(255,255,255,.045);
  --line:rgba(140,170,255,.14);
  --ink-1:#EAF0FF;
  --ink-2:#9FB0CC;
  --ink-3:#64748B;
  --brand:#3B4DFF;
  --brand-2:#22E0C8;
  --warm:#FF7A45;
  --ok:#34D399;
  --warn:#F5B942;
  --err:#FF5C5C;
  --grad:linear-gradient(120deg,#3B4DFF 0%,#22E0C8 100%);
  --r-lg:18px;
  --r-md:12px;
  --r-sm:8px;
  --shadow:0 18px 40px -24px rgba(0,0,0,.85);
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:ui-monospace,"SF Mono","DIN Alternate",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg-0);
  color:var(--ink-1);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--muted{background:var(--bg-1)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:30px;font-weight:600}
.section-head .sub{color:var(--ink-2);font-size:14px;margin-top:10px;max-width:620px}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-2);font-size:14px;font-weight:500;transition:gap .2s ease,color .2s ease}
.text-link:hover{gap:12px;color:#7CF3E5}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--brand-2);padding:6px 12px;border:1px solid var(--line);border-radius:999px;background:rgba(34,224,200,.06)}
.dot-live{width:7px;height:7px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 0 4px rgba(34,224,200,.14);animation:pulse 1.8s infinite ease-in-out}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.86)}}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:80;background:rgba(6,9,17,.82);border-bottom:1px solid transparent;transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease}
.site-header.is-stuck{background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom-color:var(--line)}
.nav-brand-row{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-mark{font-family:var(--mono);font-size:22px;font-weight:700;letter-spacing:.02em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.logo-sub{font-size:12px;color:var(--ink-2);border-left:1px solid var(--line);padding-left:12px;line-height:1.5}
.nav-actions{display:flex;align-items:center;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:14px;font-weight:500;border-radius:10px;padding:0 20px;height:42px;border:1px solid transparent;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease}
.btn-primary{background:var(--grad);color:#050A14;font-weight:600;border-radius:999px;box-shadow:0 0 0 1px rgba(34,224,200,.35),0 14px 34px -18px rgba(34,224,200,.6)}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(34,224,200,.5),0 18px 40px -16px rgba(34,224,200,.7)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(34,224,200,.4),0 8px 18px -12px rgba(34,224,200,.55)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink-1)}
.btn-ghost:hover{border-color:var(--brand-2);background:rgba(34,224,200,.06)}
.btn-lg{height:52px;padding:0 28px;font-size:15px}
.btn-block{width:100%}
.nav-toggle{display:none;width:42px;height:42px;align-items:center;justify-content:center;background:transparent;border:1px solid var(--line);border-radius:10px;color:var(--ink-1);cursor:pointer}
.nav-toggle svg{width:18px;height:18px}
.nav-channels{border-top:1px solid var(--line);height:52px;display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none}
.nav-channels::-webkit-scrollbar{display:none}
.channel{position:relative;flex-shrink:0;display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:999px;font-size:14px;color:var(--ink-2);border:1px solid transparent;transition:color .18s ease,background .18s ease,border-color .18s ease}
.channel:hover{color:var(--ink-1);background:rgba(255,255,255,.04)}
.channel.is-active{color:var(--ink-1);border-color:var(--line);background:rgba(34,224,200,.07)}
.channel.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:-9px;height:2px;border-radius:2px;background:var(--brand-2);box-shadow:0 0 12px rgba(34,224,200,.8)}

/* ===== Hero ===== */
.hero{position:relative;padding:88px 0 80px;overflow:hidden;background-image:linear-gradient(180deg,rgba(6,9,17,.86) 0%,rgba(6,9,17,.94) 62%,var(--bg-0) 100%),url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center}
.hero::before{content:"";position:absolute;top:-160px;left:-120px;width:620px;height:620px;background:radial-gradient(circle,rgba(34,224,200,.12) 0%,rgba(34,224,200,0) 68%);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start}
.hero-copy{max-width:620px}
.hero h1{font-size:44px;line-height:1.18;font-weight:700;margin:20px 0 18px}
.hero h1 .accent{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:var(--ink-2);font-size:16px;line-height:1.8;max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin:32px 0 24px}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12px;color:var(--ink-3);letter-spacing:.02em}
.hero-meta .sep{color:rgba(140,170,255,.35)}
.hero-meta strong{color:var(--ink-2);font-weight:500}

.countdown-card{position:relative;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);padding:18px;box-shadow:var(--shadow);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);overflow:hidden}
.countdown-card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:rgba(255,255,255,.08)}
.countdown-cover{position:relative;border-radius:var(--r-md);overflow:hidden;aspect-ratio:16/9;background:var(--bg-2)}
.countdown-cover img{width:100%;height:100%;object-fit:cover}
.countdown-cover .cover-tag{position:absolute;top:12px;left:12px;display:inline-flex;align-items:center;gap:6px;font-size:12px;padding:5px 10px;border-radius:999px;background:rgba(6,9,17,.72);border:1px solid var(--line);color:var(--ink-1);backdrop-filter:blur(8px)}
.countdown-body{padding-top:16px}
.countdown-label{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--ink-3);margin-bottom:12px}
.countdown-label .warm{color:var(--warm)}
.clock{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.clock-cell{background:rgba(6,9,17,.6);border:1px solid var(--line);border-radius:10px;padding:10px 4px;text-align:center}
.clock-cell b{display:block;font-family:var(--mono);font-size:28px;line-height:1.1;color:var(--ink-1);font-weight:600;letter-spacing:.02em}
.clock-cell span{display:block;font-size:11px;color:var(--ink-3);margin-top:4px}
.countdown-note{font-size:12px;color:var(--ink-3);margin-top:12px;line-height:1.7}
.countdown-actions{margin-top:16px;display:flex;gap:10px}

/* ===== Highlights ===== */
.highlight-list{border-top:1px solid var(--line)}
.highlight-item{display:grid;grid-template-columns:72px 1fr;gap:24px;align-items:start;padding:28px 0;border-bottom:1px solid var(--line);transition:background .2s ease}
.highlight-item:hover{background:rgba(255,255,255,.02)}
.highlight-num{font-family:var(--mono);font-size:26px;color:rgba(140,170,255,.35);font-weight:600}
.highlight-item h3{font-size:19px;margin-bottom:8px}
.highlight-item p{color:var(--ink-2);font-size:14px;line-height:1.8}

/* ===== Steps ===== */
.steps{display:grid;grid-template-columns:3fr 4fr 5fr;gap:20px;align-items:stretch}
.step{position:relative;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px 24px;box-shadow:var(--shadow);transition:transform .22s ease,border-color .22s ease}
.step:hover{transform:translateY(-3px);border-color:rgba(34,224,200,.4)}
.step-num{font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:var(--brand-2);margin-bottom:14px;display:inline-block;padding:4px 10px;border-radius:var(--r-sm);background:rgba(34,224,200,.08);border:1px solid rgba(34,224,200,.22)}
.step h3{font-size:18px;margin-bottom:10px}
.step p{font-size:14px;color:var(--ink-2);line-height:1.8}
.step::after{content:"→";position:absolute;right:-16px;top:50%;transform:translateY(-50%);color:rgba(140,170,255,.4);font-size:16px}
.step:last-child::after{display:none}

/* ===== News ===== */
.news-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:32px;align-items:start}
.news-card{display:grid;grid-template-columns:150px 1fr;gap:20px;padding:18px;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);transition:transform .22s ease,border-color .22s ease}
.news-card + .news-card{margin-top:16px}
.news-card:hover{transform:translateY(-2px);border-color:rgba(34,224,200,.4)}
.news-thumb{aspect-ratio:4/3;border-radius:var(--r-md);overflow:hidden;background:var(--bg-1)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body h3{font-size:17px;line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{font-size:13px;color:var(--ink-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--ink-3);margin-top:12px}
.news-side{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:8px 20px 20px;box-shadow:var(--shadow)}
.news-side-title{font-size:13px;color:var(--ink-3);letter-spacing:.08em;text-transform:uppercase;padding:14px 0 10px;border-bottom:1px solid var(--line);margin-bottom:6px}
.news-line{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px dashed rgba(140,170,255,.12);transition:color .18s ease}
.news-line:last-child{border-bottom:none}
.news-line:hover .news-line-title{color:var(--brand-2)}
.news-line-title{font-size:14px;line-height:1.6;color:var(--ink-1);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .18s ease}
.news-line-date{font-size:12px;color:var(--ink-3);flex-shrink:0;font-family:var(--mono)}
.news-empty{padding:40px 24px;text-align:center;border:1px dashed var(--line);border-radius:var(--r-lg);color:var(--ink-2);font-size:14px;background:rgba(255,255,255,.015)}
.news-empty svg{width:40px;height:40px;color:rgba(140,170,255,.32);margin:0 auto 12px;display:block}

/* ===== Subscribe ===== */
.subscribe{max-width:820px;margin:0 auto;text-align:center;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);padding:48px 40px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow)}
.subscribe h2{font-size:28px;margin-bottom:12px}
.subscribe p{color:var(--ink-2);font-size:14px;line-height:1.8;margin-bottom:26px}
.subscribe-form{display:flex;gap:12px;max-width:560px;margin:0 auto}
.field{flex:1;position:relative}
.field input{width:100%;height:48px;background:rgba(6,9,17,.72);border:1px solid var(--line);border-radius:var(--r-md);padding:0 16px;color:var(--ink-1);font-size:14px;font-family:inherit;transition:border-color .2s ease,box-shadow .2s ease}
.field input::placeholder{color:var(--ink-3)}
.field input:focus{outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(34,224,200,.14)}
.form-msg{font-size:12px;margin-top:8px;min-height:18px;text-align:left}
.form-msg.ok{color:var(--ok)}
.form-msg.err{color:var(--err)}
.subscribe .privacy{font-size:12px;color:var(--ink-3);margin-top:16px;margin-bottom:0}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none!important}

/* ===== Replay rail ===== */
.rail{display:flex;gap:20px;overflow-x:auto;padding-bottom:12px;scrollbar-width:thin}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-thumb{background:rgba(140,170,255,.22);border-radius:99px}
.rail-card{flex:0 0 284px;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);transition:transform .22s ease,border-color .22s ease}
.rail-card:hover{transform:translateY(-4px);border-color:rgba(34,224,200,.45)}
.rail-cover{position:relative;aspect-ratio:16/9;background:var(--bg-1);overflow:hidden}
.rail-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.rail-card:hover .rail-cover img{transform:scale(1.04)}
.rail-duration{position:absolute;right:10px;bottom:10px;font-family:var(--mono);font-size:11px;padding:3px 8px;border-radius:6px;background:rgba(6,9,17,.82);color:var(--ink-1);border:1px solid var(--line)}
.rail-body{padding:16px}
.rail-body h3{font-size:15px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:46px}
.rail-body span{display:block;font-size:12px;color:var(--ink-3);margin-top:10px}
.rail-card--cta{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;padding:28px;background:linear-gradient(160deg,rgba(59,77,255,.18),rgba(34,224,200,.1));border-color:rgba(34,224,200,.32)}
.rail-card--cta h3{font-size:18px;min-height:auto;margin-bottom:10px}
.rail-card--cta p{font-size:13px;color:var(--ink-2);line-height:1.7;margin-bottom:18px}

/* ===== FAQ ===== */
.faq{max-width:820px;margin:0 auto}
.faq-item{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-md);margin-bottom:12px;overflow:hidden;transition:border-color .2s ease}
.faq-item.open{border-color:rgba(34,224,200,.42)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;background:transparent;border:none;color:var(--ink-1);font-size:16px;font-weight:600;text-align:left;padding:18px 20px;cursor:pointer;line-height:1.6}
.faq-icon{flex-shrink:0;width:18px;height:18px;position:relative;transition:transform .2s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-2);border-radius:2px}
.faq-icon::before{left:0;right:0;top:8px;height:2px}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px;transition:opacity .2s ease}
.faq-item.open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding:0 20px 20px;font-size:14px;line-height:1.8;color:var(--ink-2)}

/* ===== CTA band ===== */
.cta-band{position:relative;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background-image:linear-gradient(120deg,rgba(6,9,17,.92),rgba(11,18,32,.9)),url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0;flex-wrap:wrap}
.cta-inner h2{font-size:28px;margin-bottom:10px}
.cta-inner p{color:var(--ink-2);font-size:14px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ===== Footer ===== */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:64px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:13px;color:var(--ink-2);line-height:1.8;max-width:300px}
.footer-col h4{font-size:13px;color:var(--ink-3);letter-spacing:.08em;margin-bottom:16px;font-weight:500}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:13px;color:var(--ink-2);transition:color .18s ease}
.footer-col a:hover{color:var(--ink-1);text-decoration:underline;text-underline-offset:4px}
.footer-bottom{margin-top:48px;padding-top:20px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:var(--ink-3);line-height:1.9}

/* ===== Responsive ===== */
@media (max-width:1199px){
  .hero h1{font-size:38px}
  .hero-grid{gap:36px}
}
@media (max-width:991px){
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .hero{padding:64px 0}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-copy{max-width:none}
  .hero h1{font-size:34px}
  .steps{grid-template-columns:1fr;gap:16px}
  .step::after{display:none}
  .news-grid{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .nav-toggle{display:inline-flex}
  .nav-actions .btn-ghost{display:none}
  .nav-channels{position:fixed;top:0;right:0;bottom:0;width:min(300px,86vw);height:auto;flex-direction:column;align-items:stretch;gap:4px;padding:88px 20px 32px;background:#0A1120;border-left:1px solid var(--line);border-top:none;transform:translateX(105%);transition:transform .28s ease;z-index:70;overflow-y:auto}
  .nav-channels.open{transform:translateX(0)}
  .channel{height:48px;border-radius:10px;padding:0 14px;width:100%}
  .channel.is-active{border-color:transparent;background:rgba(34,224,200,.08);box-shadow:inset 3px 0 0 var(--brand-2)}
  .channel.is-active::after{display:none}
  .hero h1{font-size:30px}
  .hero-lead{font-size:15px}
  .clock{grid-template-columns:repeat(2,1fr)}
  .subscribe{padding:32px 22px}
  .subscribe-form{flex-direction:column}
  .subscribe h2{font-size:23px}
  .section-head h2{font-size:22px}
  .news-card{grid-template-columns:1fr;gap:14px}
  .news-thumb{aspect-ratio:16/9}
  .highlight-item{grid-template-columns:52px 1fr;gap:16px;padding:22px 0}
  .highlight-num{font-size:22px}
  .cta-inner{padding:44px 0}
  .cta-inner h2{font-size:23px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .logo-sub{display:none}
}
@media (max-width:480px){
  .hero-meta{font-size:11px;gap:8px}
  .hero-cta .btn{width:100%}
  .rail-card{flex:0 0 82vw}
  .news-line{flex-direction:column;gap:4px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* roulang page: article */
:root{
  --bg-0:#060911;
  --bg-1:#0B1220;
  --bg-2:#101A2E;
  --glass:rgba(255,255,255,.045);
  --line:rgba(140,170,255,.14);
  --ink-1:#EAF0FF;
  --ink-2:#9FB0CC;
  --ink-3:#64748B;
  --brand:#3B4DFF;
  --brand-2:#22E0C8;
  --warm:#FF7A45;
  --ok:#34D399;
  --warn:#F5B942;
  --err:#FF5C5C;
  --grad:linear-gradient(120deg,#3B4DFF 0%,#22E0C8 100%);
  --r-lg:18px;
  --r-md:12px;
  --r-sm:10px;
  --shadow:0 18px 40px -24px rgba(0,0,0,.85);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink-1);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;font-weight:600;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:6px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){:root{--container:1240px;}}
@media (max-width:767px){.container{padding:0 20px;}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 18px;border-radius:var(--r-sm);
  font-size:14px;font-weight:600;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,opacity .18s ease;
}
.btn-primary{
  background:var(--grad);color:#04121A;
  box-shadow:0 0 0 1px rgba(34,224,200,.45),0 14px 34px -14px rgba(34,224,200,.6);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(34,224,200,.6),0 18px 40px -12px rgba(34,224,200,.75);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(34,224,200,.4),0 8px 18px -12px rgba(34,224,200,.6);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink-1);}
.btn-ghost:hover{border-color:var(--brand-2);background:var(--glass);color:#fff;}
.btn-ghost:active{transform:translateY(1px);}
.btn-lg{height:50px;padding:0 26px;border-radius:999px;font-size:15px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(6,9,17,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{background:rgba(8,12,22,.94);box-shadow:0 12px 30px -22px rgba(0,0,0,.9);}
.nav-brand-row{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:64px;
}
.logo{display:flex;align-items:center;gap:10px;min-width:0;}
.logo-mark{
  font-family:ui-monospace,"SF Mono","DIN Alternate",monospace;
  font-size:22px;font-weight:700;letter-spacing:.02em;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.logo-sub{
  font-size:12px;font-weight:500;color:var(--ink-3);
  letter-spacing:.02em;line-height:1.4;
  border-left:1px solid var(--line);padding-left:10px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-sm);
  background:var(--glass);border:1px solid var(--line);color:var(--ink-1);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px;}
.nav-toggle:hover{border-color:var(--brand-2);}
.nav-channels{
  display:flex;align-items:center;gap:6px;
  min-height:52px;
  overflow-x:auto;
  scrollbar-width:none;
  border-top:1px solid rgba(140,170,255,.07);
}
.nav-channels::-webkit-scrollbar{display:none;}
.channel{
  position:relative;
  display:inline-flex;align-items:center;
  padding:8px 14px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--ink-2);
  white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.channel:hover{color:var(--ink-1);background:var(--glass);}
.channel.is-active{color:var(--ink-1);font-weight:600;}
.channel.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-1px;height:2px;
  background:var(--brand-2);border-radius:2px;
  box-shadow:0 0 12px rgba(34,224,200,.8);
}
@media (max-width:991px){
  .logo-sub{display:none;}
}
@media (max-width:767px){
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-ghost{display:none;}
  .nav-channels{
    position:fixed;top:0;right:0;bottom:0;
    width:min(78vw,320px);
    flex-direction:column;align-items:stretch;
    gap:4px;padding:88px 18px 28px;
    background:var(--bg-1);
    border-left:1px solid var(--line);
    border-top:0;
    transform:translateX(105%);
    transition:transform .28s ease;
    z-index:60;overflow-y:auto;overflow-x:hidden;
  }
  .nav-channels.is-open{transform:translateX(0);}
  .channel{padding:14px 12px;border-left:2px solid transparent;border-radius:10px;font-size:15px;}
  .channel.is-active{background:var(--glass);border-left-color:var(--brand-2);}
  .channel.is-active::after{display:none;}
}

/* ============ 页面头部 ============ */
.page-head{
  position:relative;
  padding:40px 0 44px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(6,9,17,.88) 0%,rgba(6,9,17,.96) 70%,var(--bg-0) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-head::after{
  content:"";position:absolute;top:-120px;left:-80px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(34,224,200,.12),transparent 68%);
  pointer-events:none;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:12.5px;color:var(--ink-3);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--ink-2);transition:color .18s ease;}
.breadcrumb a:hover{color:var(--brand-2);}
.breadcrumb .sep{color:rgba(140,170,255,.35);}
.breadcrumb .current{color:var(--ink-2);max-width:24ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-head{max-width:860px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 11px;border-radius:8px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  color:var(--brand-2);
  background:rgba(34,224,200,.09);
  border:1px solid rgba(34,224,200,.28);
}
.badge-muted{color:var(--ink-2);background:var(--glass);border-color:var(--line);}
.article-head h1{
  font-size:38px;line-height:1.28;font-weight:700;
  margin:18px 0 16px;
  color:#fff;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-3);
}
.article-meta .dot{color:rgba(140,170,255,.35);}
.article-meta strong{color:var(--ink-2);font-weight:500;}
@media (max-width:1023px){.article-head h1{font-size:32px;}}
@media (max-width:767px){
  .page-head{padding:28px 0 34px;}
  .article-head h1{font-size:26px;line-height:1.36;margin:14px 0 14px;}
  .breadcrumb{margin-bottom:16px;}
}

/* ============ 文章主体 ============ */
.article-section{padding:56px 0 72px;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 312px;
  gap:56px;
  align-items:start;
}
.article-main{min-width:0;}
.article-body{
  max-width:760px;
  font-size:16px;
  line-height:1.85;
  color:#D5DEEC;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.4em;}
.article-body h2{
  font-size:26px;line-height:1.35;color:#fff;font-weight:600;
  margin:40px 0 16px;
  padding-left:14px;
  border-left:3px solid var(--brand-2);
}
.article-body h3{
  font-size:19px;line-height:1.45;color:var(--ink-1);font-weight:600;
  margin:32px 0 12px;
}
.article-body h4{font-size:16px;color:var(--ink-1);margin:24px 0 10px;}
.article-body a{color:var(--brand-2);border-bottom:1px solid rgba(34,224,200,.35);transition:border-color .18s ease;}
.article-body a:hover{border-bottom-color:var(--brand-2);}
.article-body strong{color:#fff;font-weight:600;}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.4em;}
.article-body ul{list-style:none;padding-left:1.2em;}
.article-body ul > li{position:relative;margin:0 0 .6em;}
.article-body ul > li::before{
  content:"";position:absolute;left:-1.05em;top:.75em;
  width:6px;height:6px;border-radius:50%;
  background:var(--brand-2);box-shadow:0 0 8px rgba(34,224,200,.7);
}
.article-body ol{list-style:decimal;}
.article-body ol > li{margin:0 0 .6em;padding-left:.2em;}
.article-body blockquote{
  margin:28px 0;padding:18px 22px;
  border-left:3px solid var(--brand-2);
  background:var(--glass);
  border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--ink-2);
  font-size:15px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  width:100%;height:auto;border-radius:14px;
  margin:24px 0 10px;
  background:var(--bg-2);
}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:12px;color:var(--ink-3);text-align:center;margin-top:8px;}
.article-body table{
  width:100%;border-collapse:collapse;
  margin:24px 0;font-size:14px;
  border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;
}
.article-body thead th{
  position:sticky;top:0;
  background:var(--bg-2);color:var(--ink-1);
  font-weight:600;text-align:left;
  padding:12px 14px;border-bottom:1px solid var(--line);
}
.article-body td{padding:11px 14px;border-bottom:1px solid rgba(140,170,255,.08);color:var(--ink-2);}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.022);}
.article-body code{
  font-family:ui-monospace,"SF Mono",monospace;
  font-size:13.5px;padding:2px 6px;border-radius:6px;
  background:rgba(140,170,255,.1);color:#BFD0E8;
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}

/* 空态 */
.empty-state{
  max-width:560px;
  padding:44px 32px;
  border:1px dashed var(--line);
  border-radius:var(--r-lg);
  background:var(--glass);
  text-align:center;
}
.empty-state h2{font-size:20px;color:#fff;margin:0 0 10px;border:0;padding:0;}
.empty-state p{font-size:14px;color:var(--ink-2);margin:0 auto 22px;max-width:40ch;}

/* ============ 侧栏 ============ */
.article-aside{position:relative;}
.aside-card{
  position:sticky;top:96px;
  background:var(--glass);
  border:1px solid var(--line);
  border-top:1px solid rgba(255,255,255,.08);
  border-radius:var(--r-lg);
  padding:22px;
  box-shadow:var(--shadow);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.aside-card h3{font-size:15px;color:#fff;margin:0 0 16px;font-weight:600;}
.aside-list{display:grid;gap:14px;margin-bottom:20px;}
.aside-item{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;font-size:13px;}
.aside-item .k{color:var(--ink-3);}
.aside-item .v{color:var(--ink-1);font-weight:500;text-align:right;}
.status-live{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;font-weight:600;color:var(--brand-2);
}
.status-live i{
  width:7px;height:7px;border-radius:50%;
  background:var(--brand-2);box-shadow:0 0 10px rgba(34,224,200,.9);
  animation:pulse 1.8s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.42;transform:scale(.82);}}
.aside-card .btn{width:100%;}
.aside-note{font-size:12px;color:var(--ink-3);line-height:1.7;margin-top:14px;}
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:36px;}
}
@media (max-width:991px){
  .article-layout{grid-template-columns:1fr;gap:40px;}
  .article-aside{order:2;}
  .aside-card{position:static;}
}

/* ============ CTA 条 ============ */
.cta-bar{
  position:relative;
  margin-top:56px;
  padding:30px 32px;
  border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(59,77,255,.16) 0%,rgba(34,224,200,.12) 100%);
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  overflow:hidden;
}
.cta-bar::before{
  content:"";position:absolute;inset:0 0 auto 0;height:1px;
  background:var(--grad);opacity:.5;
}
.cta-bar h3{font-size:20px;color:#fff;margin:0 0 6px;}
.cta-bar p{font-size:13.5px;color:var(--ink-2);margin:0;max-width:56ch;}
@media (max-width:767px){
  .cta-bar{flex-direction:column;align-items:flex-start;padding:24px 22px;}
  .cta-bar .btn{width:100%;}
}

/* ============ 相关推荐 ============ */
.related-section{padding:0 0 80px;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:16px;
  margin-bottom:26px;
}
.section-head h2{font-size:24px;color:#fff;font-weight:600;}
.section-head .link{
  font-size:13.5px;font-weight:500;color:var(--ink-2);
  display:inline-flex;align-items:center;gap:6px;
  transition:color .18s ease;
}
.section-head .link:hover{color:var(--brand-2);}
.section-head .link svg{width:14px;height:14px;transition:transform .18s ease;}
.section-head .link:hover svg{transform:translateX(3px);}
.related-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
}
.card{
  display:flex;flex-direction:column;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.card:hover{transform:translateY(-3px);border-color:rgba(34,224,200,.45);box-shadow:0 24px 48px -28px rgba(0,0,0,.95);}
.card-thumb{
  position:relative;
  aspect-ratio:16/9;
  background:var(--bg-1);
  overflow:hidden;
}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card:hover .card-thumb img{transform:scale(1.03);}
.card-thumb .tag{
  position:absolute;left:12px;top:12px;
  height:24px;padding:0 9px;border-radius:8px;
  display:inline-flex;align-items:center;
  font-size:11.5px;font-weight:600;
  background:rgba(6,9,17,.78);
  border:1px solid rgba(34,224,200,.35);
  color:var(--brand-2);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
.card-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1;}
.card-body h3{
  font-size:16px;line-height:1.5;color:var(--ink-1);font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  font-size:13.5px;color:var(--ink-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;display:flex;align-items:center;gap:8px;
  font-size:12px;color:var(--ink-3);
}
.card-foot .dot{color:rgba(140,170,255,.35);}

/* 上下篇 */
.pager-nav{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  margin-top:44px;padding-top:24px;
  border-top:1px solid var(--line);
  font-size:13.5px;
}
.pager-nav a{
  color:var(--ink-2);display:inline-flex;align-items:center;gap:8px;
  transition:color .18s ease;
}
.pager-nav a:hover{color:var(--brand-2);}
.pager-nav svg{width:14px;height:14px;}
@media (max-width:767px){
  .pager-nav{flex-direction:column;align-items:flex-start;gap:12px;}
}

@media (max-width:991px){
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:600px){
  .related-grid{grid-template-columns:1fr;}
  .article-section{padding:40px 0 56px;}
  .related-section{padding-bottom:60px;}
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:64px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;color:var(--ink-3);line-height:1.85;max-width:34ch;}
.footer-col h4{font-size:13px;color:var(--ink-1);font-weight:600;letter-spacing:.04em;margin:0 0 16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{
  font-size:13.5px;color:var(--ink-3);
  transition:color .18s ease,border-color .18s ease;
  border-bottom:1px solid transparent;
}
.footer-col a:hover{color:var(--ink-1);border-bottom-color:rgba(234,240,255,.35);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding-top:22px;border-top:1px solid rgba(140,170,255,.08);
  font-size:12px;color:var(--ink-3);
}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:600px){
  .site-footer{padding:48px 0 22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
}

/* roulang page: category1 */
:root{
  --bg-0:#060911;
  --bg-1:#0B1220;
  --bg-2:#101A2E;
  --glass:rgba(255,255,255,.045);
  --line:rgba(140,170,255,.14);
  --ink-1:#EAF0FF;
  --ink-2:#9FB0CC;
  --ink-3:#64748B;
  --brand:#3B4DFF;
  --brand-2:#22E0C8;
  --warm:#FF7A45;
  --ok:#34D399;
  --warn:#F5B942;
  --err:#FF5C5C;
  --grad:linear-gradient(120deg,#3B4DFF 0%,#22E0C8 100%);
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.85);
  --shadow-glow:0 0 0 1px rgba(34,224,200,.45),0 14px 34px -14px rgba(34,224,200,.6);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink-1);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
input{font:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
h1,h2,h3,h4{letter-spacing:-.01em;line-height:1.28}
::selection{background:rgba(34,224,200,.28);color:#fff}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,9,17,.92);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(6,9,17,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:0 10px 30px -22px rgba(0,0,0,.9);
}
.nav-brand-row{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px}
.logo{display:flex;align-items:center;gap:12px;min-width:0}
.logo-mark{
  font-size:22px;font-weight:700;letter-spacing:-.02em;color:var(--ink-1);
  padding-right:12px;border-right:1px solid var(--line);
}
.logo-sub{font-size:12px;line-height:1.5;color:var(--ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;padding:0;
  background:transparent;border:1px solid var(--line);border-radius:10px;
  color:var(--ink-1);cursor:pointer;transition:border-color .2s ease,background .2s ease;
}
.nav-toggle:hover{border-color:var(--brand-2);background:rgba(34,224,200,.06)}
.nav-toggle svg{width:20px;height:20px}
.nav-channels{
  display:flex;align-items:center;gap:4px;
  height:52px;overflow-x:auto;scrollbar-width:none;
  border-top:1px solid rgba(140,170,255,.08);
}
.nav-channels::-webkit-scrollbar{display:none}
.channel{
  position:relative;display:inline-flex;align-items:center;
  padding:7px 14px;border-radius:8px;
  font-size:14px;color:var(--ink-2);white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.channel:hover{color:var(--ink-1);background:rgba(255,255,255,.04)}
.channel.is-active{color:var(--ink-1);font-weight:600}
.channel.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-9px;
  height:2px;border-radius:2px;background:var(--brand-2);
  box-shadow:0 0 10px rgba(34,224,200,.7);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-sm);
  font-size:14px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,filter .18s ease,color .18s ease;
}
.btn-primary{
  background:var(--grad);color:#06121A;border-radius:999px;
  box-shadow:0 10px 26px -16px rgba(34,224,200,.8);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:var(--shadow-glow)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(34,224,200,.4),0 6px 16px -12px rgba(34,224,200,.6)}
.btn-outline{background:transparent;border-color:var(--line);color:var(--ink-1)}
.btn-outline:hover{border-color:var(--brand-2);background:rgba(255,255,255,.04)}
.btn-ghost{background:transparent;color:var(--ink-2);border-color:transparent}
.btn-ghost:hover{color:var(--ink-1);background:rgba(255,255,255,.05)}
.btn-lg{height:50px;padding:0 26px;border-radius:999px;font-size:15px}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none!important;box-shadow:none!important}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-2);
  border-bottom:1px solid transparent;transition:border-color .2s ease,gap .2s ease;
}
.link-arrow:hover{border-bottom-color:var(--brand-2);gap:10px}

/* ---------- 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.png') center/cover no-repeat;
  opacity:.26;filter:saturate(.65);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(720px 420px at 8% 0%,rgba(34,224,200,.11),transparent 62%),
    linear-gradient(180deg,rgba(6,9,17,.82) 0%,rgba(6,9,17,.93) 58%,var(--bg-0) 100%);
}
.hero .container{position:relative;z-index:2}
.hero-inner{
  display:grid;grid-template-columns:7fr 5fr;gap:32px;
  align-items:start;padding:84px 0 76px;
}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--brand-2);
  text-transform:uppercase;margin-bottom:18px;
  padding:5px 12px;border:1px solid rgba(34,224,200,.28);border-radius:999px;
  background:rgba(34,224,200,.06);
}
.kicker .dot{width:6px;height:6px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 8px var(--brand-2)}
.hero h1{font-size:44px;line-height:1.18;font-weight:700;max-width:680px}
.hero-sub{margin-top:20px;max-width:600px;font-size:16px;line-height:1.85;color:var(--ink-2)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px 0;margin-top:30px;
  font-size:13px;color:var(--ink-2);
}
.hero-meta li{display:inline-flex;align-items:center;gap:6px;padding-right:16px;margin-right:16px;border-right:1px solid var(--line)}
.hero-meta li:last-child{border-right:none;margin-right:0;padding-right:0}
.hero-meta strong{color:var(--ink-1);font-weight:600}

.live-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-top-color:rgba(255,255,255,.14);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.live-cover{position:relative;aspect-ratio:16/9;background:var(--bg-2);overflow:hidden}
.live-cover img{width:100%;height:100%;object-fit:cover}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:8px;
  font-size:12px;font-weight:600;line-height:1.5;
}
.badge-live{
  position:absolute;top:12px;left:12px;
  background:rgba(6,9,17,.78);color:var(--ink-1);
  border:1px solid rgba(34,224,200,.4);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.pulse{width:6px;height:6px;border-radius:50%;background:var(--brand-2);animation:pulse 1.8s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(34,224,200,.5)}50%{opacity:.6;box-shadow:0 0 0 6px rgba(34,224,200,0)}}
.live-body{padding:20px}
.live-title{font-size:18px;font-weight:600;line-height:1.45}
.live-desc{margin-top:8px;font-size:13px;line-height:1.75;color:var(--ink-2)}
.countdown{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:18px}
.cd-cell{
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);border-radius:var(--radius-md);
  padding:10px 4px;text-align:center;
}
.cd-cell span{
  display:block;font-family:ui-monospace,"SF Mono","DIN Alternate",monospace;
  font-size:28px;font-weight:700;line-height:1.2;color:var(--brand-2);
}
.cd-cell em{display:block;font-style:normal;font-size:11px;color:var(--ink-3);margin-top:2px}
.cd-note{margin-top:12px;font-size:12px;color:var(--ink-3);font-family:ui-monospace,"SF Mono",monospace}
.cd-note #cdTarget{color:var(--ink-2)}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:36px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--brand-2);
  text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--brand-2)}
.section-head h2{font-size:30px;font-weight:600}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:15px;line-height:1.8}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.section-head-row .section-head{margin-bottom:0}

/* split: preview */
.split{display:grid;grid-template-columns:7fr 5fr;gap:36px;align-items:start}
.preview-media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-2);
  box-shadow:var(--shadow-card);
}
.preview-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.preview-media figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:44px 20px 16px;
  background:linear-gradient(180deg,rgba(6,9,17,0) 0%,rgba(6,9,17,.9) 70%);
  font-size:13px;color:var(--ink-2);
}
.preview-media figcaption strong{color:var(--ink-1);font-weight:600}
.num-list{margin-top:8px}
.num-list li{
  display:grid;grid-template-columns:auto 1fr;gap:16px;
  padding:20px 0;border-bottom:1px solid var(--line);
}
.num-list li:last-child{border-bottom:none;padding-bottom:0}
.num-list .idx{
  font-family:ui-monospace,"SF Mono","DIN Alternate",monospace;
  font-size:13px;font-weight:700;color:var(--brand-2);
  letter-spacing:.06em;padding-top:3px;
}
.num-list h3{font-size:16px;font-weight:600;line-height:1.5}
.num-list p{margin-top:4px;font-size:14px;line-height:1.75;color:var(--ink-2)}

/* four cards asymmetric */
.duo{display:grid;grid-template-columns:5fr 7fr;gap:36px;align-items:start}
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.info-card{
  background:var(--bg-2);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:22px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.info-card:hover{transform:translateY(-3px);border-color:rgba(34,224,200,.34)}
.info-card h3{font-size:16px;font-weight:600;display:flex;align-items:center;gap:10px}
.info-card h3 .tick{
  width:22px;height:22px;flex-shrink:0;border-radius:6px;
  background:rgba(34,224,200,.12);color:var(--brand-2);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;
}
.info-card p{margin-top:10px;font-size:14px;line-height:1.78;color:var(--ink-2)}

/* schedule */
.schedule{border-top:1px solid var(--line)}
.schedule-row{
  display:grid;grid-template-columns:170px 1fr auto;gap:24px;align-items:center;
  padding:22px 4px;border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.schedule-row:hover{background:rgba(255,255,255,.025)}
.sc-time{display:flex;flex-direction:column;gap:2px}
.sc-time strong{font-family:ui-monospace,"SF Mono","DIN Alternate",monospace;font-size:15px;color:var(--ink-1)}
.sc-time span{font-size:12px;color:var(--ink-3)}
.sc-main h3{font-size:16px;font-weight:600;line-height:1.5}
.sc-main p{margin-top:4px;font-size:13px;line-height:1.7;color:var(--ink-2)}
.sc-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:8px;font-size:12px;font-weight:600;
  border:1px solid var(--line);color:var(--ink-2);white-space:nowrap;
}
.sc-tag.is-next{border-color:rgba(255,122,69,.45);color:var(--warm);background:rgba(255,122,69,.08)}
.sc-tag.is-done{color:var(--ink-3)}

/* steps */
.steps{display:flex;align-items:stretch;gap:16px;flex-wrap:wrap}
.step{
  position:relative;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow-card);
}
.step:nth-child(1){flex:3 1 240px}
.step:nth-child(2){flex:4 1 280px}
.step:nth-child(3){flex:5 1 320px}
.step .step-no{
  font-family:ui-monospace,"SF Mono","DIN Alternate",monospace;
  font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--brand-2);
}
.step h3{margin-top:10px;font-size:18px;font-weight:600}
.step p{margin-top:8px;font-size:14px;line-height:1.78;color:var(--ink-2)}

/* subscribe */
.subscribe-wrap{
  max-width:820px;margin:0 auto;text-align:center;
  background:var(--glass);
  border:1px solid var(--line);
  border-top-color:rgba(255,255,255,.14);
  border-radius:var(--radius-lg);
  padding:44px 32px;
  box-shadow:var(--shadow-card);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.subscribe-wrap h2{font-size:28px;font-weight:600}
.subscribe-wrap > p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--ink-2)}
.subscribe-form{display:flex;gap:10px;margin-top:26px;flex-wrap:wrap;justify-content:center}
.subscribe-form input{
  flex:1 1 320px;min-width:0;height:48px;padding:0 16px;
  background:rgba(6,9,17,.72);border:1px solid var(--line);border-radius:var(--radius-md);
  color:var(--ink-1);font-size:14px;transition:border-color .2s ease,box-shadow .2s ease;
}
.subscribe-form input::placeholder{color:var(--ink-3)}
.subscribe-form input:focus{outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(34,224,200,.14)}
.subscribe-form .btn{height:48px;padding:0 26px;flex:0 0 auto}
.form-note{margin-top:14px;font-size:12px;color:var(--ink-3);line-height:1.7}
.form-msg{margin-top:6px;font-size:12px;line-height:1.6;min-height:18px}
.form-msg.ok{color:var(--ok)}
.form-msg.err{color:var(--err)}

/* faq */
.faq{max-width:820px;margin:0 auto}
.faq-item{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-md);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease;
}
.faq-item:hover{border-color:rgba(140,170,255,.28)}
.faq-item summary{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;cursor:pointer;font-size:16px;font-weight:600;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{position:relative;width:16px;height:16px;flex-shrink:0}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-2);
  transform:translate(-50%,-50%);border-radius:2px;transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{width:16px;height:2px}
.faq-icon::after{width:2px;height:16px}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-body{padding:0 20px 20px;font-size:14px;line-height:1.85;color:var(--ink-2)}

/* cta band */
.cta-band{padding:72px 0}
.cta-box{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:40px;
  background:linear-gradient(120deg,rgba(59,77,255,.16) 0%,rgba(34,224,200,.12) 100%);
  border:1px solid var(--line);border-radius:var(--radius-lg);
}
.cta-box h2{font-size:26px;font-weight:600;max-width:560px}
.cta-box p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--ink-2);max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* footer */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.footer-brand .logo{margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--ink-2);max-width:340px}
.footer-col h4{font-size:13px;font-weight:600;color:var(--ink-1);letter-spacing:.06em;margin-bottom:14px}
.footer-col li{margin-bottom:10px}
.footer-col a{
  font-size:14px;color:var(--ink-2);transition:color .2s ease,border-color .2s ease;
  border-bottom:1px solid transparent;
}
.footer-col a:hover{color:var(--ink-1);border-bottom-color:rgba(234,240,255,.5)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  font-size:12px;color:var(--ink-3);
}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .container{max-width:100%}
  .hero h1{font-size:38px}
}
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:64px 0 60px}
  .hero h1{font-size:34px}
  .split,.duo{grid-template-columns:1fr;gap:28px}
  .section{padding:72px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .nav-actions .btn-ghost{display:none}
  .nav-channels{
    position:fixed;top:64px;left:0;right:0;bottom:0;
    flex-direction:column;align-items:stretch;gap:4px;
    height:auto;padding:16px 20px 40px;
    background:rgba(8,12,22,.985);
    border-top:1px solid var(--line);
    transform:translateX(-100%);
    transition:transform .28s ease;
    overflow-y:auto;z-index:79;
  }
  body.nav-open .nav-channels{transform:translateX(0)}
  .channel{
    padding:14px 12px;font-size:16px;border-left:3px solid transparent;border-radius:6px;
  }
  .channel.is-active{border-left-color:var(--brand-2);background:rgba(34,224,200,.07)}
  .channel.is-active::after{display:none}
  body.nav-open{overflow:hidden}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .logo-sub{display:none}
  .hero h1{font-size:30px}
  .hero-sub{font-size:15px}
  .hero-cta{gap:10px}
  .hero-cta .btn{flex:1 1 100%}
  .hero-meta{font-size:12px}
  .hero-meta li{border-right:none;padding-right:0;margin-right:16px}
  .section{padding:56px 0}
  .section-head h2{font-size:22px}
  .live-body{padding:16px}
  .countdown{grid-template-columns:repeat(2,1fr)}
  .cd-cell span{font-size:26px}
  .card-grid{grid-template-columns:1fr}
  .schedule-row{grid-template-columns:1fr;gap:10px;padding:20px 0}
  .sc-tag{justify-self:start}
  .steps{flex-direction:column}
  .step{flex:1 1 auto!important}
  .subscribe-wrap{padding:32px 20px}
  .subscribe-wrap h2{font-size:22px}
  .subscribe-form input{flex:1 1 100%}
  .subscribe-form .btn{flex:1 1 100%}
  .cta-box{padding:28px 22px}
  .cta-box h2{font-size:22px}
  .cta-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:480px){
  .logo-mark{font-size:19px}
  .hero-inner{padding:48px 0 44px}
  .num-list li{grid-template-columns:1fr;gap:6px}
  .num-list .idx{padding-top:0}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
}

/* roulang page: category2 */
:root{
  --bg-0:#060911;
  --bg-1:#0B1220;
  --bg-2:#101A2E;
  --glass:rgba(255,255,255,.045);
  --line:rgba(140,170,255,.14);
  --ink-1:#EAF0FF;
  --ink-2:#9FB0CC;
  --ink-3:#64748B;
  --brand:#3B4DFF;
  --brand-2:#22E0C8;
  --warm:#FF7A45;
  --ok:#34D399;
  --err:#FF5C5C;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 18px 40px -24px rgba(0,0,0,.85);
  --maxw:1200px;
  --grad:linear-gradient(120deg,#3B4DFF 0%,#22E0C8 100%);
}
*,*::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-1);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
body.is-locked{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{letter-spacing:-.01em;font-weight:600;line-height:1.3}
::selection{background:rgba(34,224,200,.28);color:#fff}
.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){.container{max-width:1240px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:10px;
  font-size:14px;
  font-weight:500;
  white-space:nowrap;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
}
.btn-primary{
  background:var(--grad);
  color:#05121a;
  border-radius:999px;
  font-weight:600;
  box-shadow:0 0 0 1px rgba(34,224,200,.45),0 14px 34px -14px rgba(34,224,200,.55);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(34,224,200,.6),0 18px 40px -12px rgba(34,224,200,.7)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(34,224,200,.5),0 8px 18px -10px rgba(34,224,200,.5)}
.btn-ghost{
  background:transparent;
  border:1px solid var(--line);
  color:var(--ink-1);
}
.btn-ghost:hover{border-color:var(--brand-2);background:rgba(34,224,200,.07)}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand-2);
  font-size:14px;
  font-weight:500;
  border-bottom:1px solid transparent;
  transition:border-color .2s ease,gap .2s ease;
}
.btn-link:hover{border-bottom-color:var(--brand-2);gap:10px}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--brand-2);
  outline-offset:3px;
  border-radius:8px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(6,9,17,.88);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav-brand-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:64px;
}
.logo{display:flex;align-items:baseline;gap:12px;min-width:0}
.logo-mark{
  font-size:22px;
  font-weight:700;
  letter-spacing:-.02em;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  line-height:1.2;
}
.logo-sub{
  font-size:12px;
  color:var(--ink-2);
  font-weight:400;
  letter-spacing:.02em;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-actions .btn{height:38px;padding:0 16px;font-size:13px}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:10px;
  color:var(--ink-1);
}
.nav-toggle svg{width:20px;height:20px}
.nav-channels{
  display:flex;
  align-items:center;
  gap:28px;
  height:52px;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-channels::-webkit-scrollbar{display:none}
.channel{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:52px;
  font-size:14px;
  color:var(--ink-2);
  white-space:nowrap;
  transition:color .2s ease;
}
.channel:hover{color:var(--ink-1)}
.channel.is-active{color:var(--ink-1);font-weight:600}
.channel.is-active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--brand-2);
  box-shadow:0 0 12px rgba(34,224,200,.8);
  border-radius:2px;
}
.nav-backdrop{
  position:fixed;
  inset:0;
  background:rgba(2,4,9,.7);
  opacity:0;
  pointer-events:none;
  transition:opacity .25s ease;
  z-index:110;
}
.nav-backdrop.is-open{opacity:1;pointer-events:auto}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg,rgba(6,9,17,.78) 0%,rgba(6,9,17,.92) 55%,rgba(6,9,17,1) 100%),
    url("/assets/images/backpic/back-1.png") center/cover no-repeat,
    var(--bg-0);
}
.page-hero::before{
  content:"";
  position:absolute;
  top:-140px;left:-80px;
  width:520px;height:520px;
  background:radial-gradient(circle,rgba(34,224,200,.12),transparent 66%);
  pointer-events:none;
}
.hero-inner{
  position:relative;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:40px;
  align-items:center;
  padding:64px 0 68px;
}
.crumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  color:var(--ink-3);
  margin-bottom:18px;
}
.crumbs a{color:var(--ink-2)}
.crumbs a:hover{color:var(--ink-1);text-decoration:underline;text-underline-offset:3px}
.crumbs span.sep{color:var(--ink-3)}
.hero-copy{max-width:620px}
.kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 12px;
  margin-bottom:18px;
  font-size:12px;
  font-weight:500;
  letter-spacing:.04em;
  color:var(--brand-2);
  border:1px solid rgba(34,224,200,.34);
  border-radius:999px;
  background:rgba(34,224,200,.06);
}
.kicker .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--brand-2);
  box-shadow:0 0 10px rgba(34,224,200,.9);
}
.page-hero h1{
  font-size:44px;
  line-height:1.18;
  font-weight:700;
  margin-bottom:18px;
}
.page-hero h1 em{
  font-style:normal;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
  margin-bottom:26px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:26px;
  font-size:13px;
  color:var(--ink-3);
}
.hero-meta .num{font-family:ui-monospace,"SF Mono","DIN Alternate",monospace;color:var(--ink-2)}
.hero-meta .bar{width:1px;height:12px;background:var(--line)}

/* 玻璃信息卡 */
.hero-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.hero-card-media{
  position:relative;
  border-radius:var(--radius-sm);
  overflow:hidden;
  aspect-ratio:16/9;
  background:var(--bg-2);
  margin-bottom:18px;
}
.hero-card-media img{width:100%;height:100%;object-fit:cover}
.hero-card-media .tag-live{
  position:absolute;
  left:12px;top:12px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 10px;
  font-size:12px;
  font-weight:500;
  color:#05121a;
  background:var(--brand-2);
  border-radius:8px;
}
.hero-card h2{
  font-size:16px;
  font-weight:600;
  margin-bottom:14px;
  color:var(--ink-1);
}
.tz-list{display:grid;gap:10px}
.tz-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-bottom:10px;
  border-bottom:1px dashed rgba(140,170,255,.16);
  font-size:13px;
}
.tz-row:last-child{border-bottom:0;padding-bottom:0}
.tz-row .tz-name{color:var(--ink-2)}
.tz-row .tz-time{
  font-family:ui-monospace,"SF Mono","DIN Alternate",monospace;
  color:var(--ink-1);
  font-size:14px;
  letter-spacing:.02em;
}
.hero-card .card-note{
  margin-top:16px;
  font-size:12px;
  color:var(--ink-3);
  line-height:1.7;
}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section.tight{padding:60px 0}
.section.alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
  flex-wrap:wrap;
}
.section-head h2{font-size:30px;line-height:1.28}
.section-head p{
  margin-top:10px;
  font-size:15px;
  color:var(--ink-2);
  max-width:640px;
}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--brand-2);
  text-transform:uppercase;
  margin-bottom:10px;
}

/* 时间轴 */
.timeline-wrap{
  display:grid;
  grid-template-columns:1fr;
  gap:0;
}
.timeline{
  position:relative;
  padding-left:40px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:9px;top:10px;bottom:10px;
  width:1px;
  background:linear-gradient(180deg,rgba(34,224,200,.7),rgba(140,170,255,.12));
}
.tl-item{
  position:relative;
  padding:0 0 30px;
}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";
  position:absolute;
  left:-36px;top:8px;
  width:11px;height:11px;
  border-radius:50%;
  background:var(--bg-0);
  border:2px solid var(--brand-2);
  box-shadow:0 0 0 4px rgba(34,224,200,.09);
}
.tl-time{
  display:inline-block;
  font-family:ui-monospace,"SF Mono","DIN Alternate",monospace;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--brand-2);
  margin-bottom:6px;
}
.tl-item h3{font-size:18px;margin-bottom:6px}
.tl-item p{font-size:14px;color:var(--ink-2);max-width:720px}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  font-size:12px;
  color:var(--ink-2);
  border:1px solid var(--line);
  border-radius:8px;
  background:rgba(140,170,255,.05);
}
.tag.accent{color:var(--brand-2);border-color:rgba(34,224,200,.34);background:rgba(34,224,200,.07)}

/* 看点卡：非对称 */
.spots-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr;
  gap:24px;
  align-items:start;
}
.feature-card{
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--bg-2);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:border-color .25s ease,transform .25s ease;
}
.feature-card:hover{border-color:rgba(34,224,200,.5);transform:translateY(-2px)}
.feature-card .thumb{
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--bg-1);
}
.feature-card .thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.feature-card:hover .thumb img{transform:scale(1.03)}
.feature-body{padding:22px}
.feature-body h3{font-size:20px;margin:10px 0 10px}
.feature-body p{font-size:14px;color:var(--ink-2)}
.feature-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:16px;
  font-size:12px;
  color:var(--ink-3);
}
.side-list{display:grid;gap:14px}
.side-card{
  display:grid;
  grid-template-columns:92px 1fr;
  gap:16px;
  padding:14px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:rgba(16,26,46,.72);
  transition:border-color .22s ease,background .22s ease,transform .22s ease;
}
.side-card:hover{border-color:rgba(34,224,200,.44);background:rgba(16,26,46,.95);transform:translateY(-1px)}
.side-card .mini{
  width:92px;height:70px;
  border-radius:10px;
  overflow:hidden;
  background:var(--bg-1);
}
.side-card .mini img{width:100%;height:100%;object-fit:cover}
.side-card h3{font-size:15px;font-weight:600;line-height:1.5;margin-bottom:6px}
.side-card p{font-size:12px;color:var(--ink-3);line-height:1.7}

/* 场景横条列表 */
.scene-list{display:grid;gap:0;border-top:1px solid var(--line)}
.scene-row{
  display:grid;
  grid-template-columns:64px 220px 1fr auto;
  gap:24px;
  align-items:center;
  padding:24px 8px;
  border-bottom:1px solid var(--line);
  transition:background .22s ease,padding-left .22s ease;
}
.scene-row:hover{background:rgba(140,170,255,.05);padding-left:16px}
.scene-num{
  font-family:ui-monospace,"SF Mono","DIN Alternate",monospace;
  font-size:18px;
  color:var(--ink-3);
  letter-spacing:.06em;
}
.scene-row:hover .scene-num{color:var(--brand-2)}
.scene-row h3{font-size:16px;font-weight:600}
.scene-row p{font-size:14px;color:var(--ink-2);line-height:1.75}
.scene-row .arrow{color:var(--ink-3);transition:transform .2s ease,color .2s ease}
.scene-row:hover .arrow{color:var(--brand-2);transform:translateX(4px)}

/* 流程 */
.steps{
  display:grid;
  grid-template-columns:1fr 1.06fr 1.14fr 1.24fr;
  gap:18px;
}
.step{
  position:relative;
  padding:24px 20px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(16,26,46,.9),rgba(11,18,32,.9));
  box-shadow:var(--shadow);
  transition:border-color .22s ease,transform .22s ease;
}
.step:hover{border-color:rgba(34,224,200,.45);transform:translateY(-2px)}
.step-idx{
  font-family:ui-monospace,"SF Mono","DIN Alternate",monospace;
  font-size:12px;
  letter-spacing:.14em;
  color:var(--brand-2);
  margin-bottom:12px;
  display:block;
}
.step h3{font-size:16px;margin-bottom:8px}
.step p{font-size:13px;color:var(--ink-2);line-height:1.75}

/* 订阅框 */
.subscribe-box{
  max-width:860px;
  margin:0 auto;
  text-align:center;
  padding:44px 36px;
  border-radius:22px;
  border:1px solid var(--line);
  background:var(--glass);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.subscribe-box h2{font-size:26px;margin-bottom:12px}
.subscribe-box p.sub-lead{font-size:14px;color:var(--ink-2);max-width:560px;margin:0 auto 26px}
.sub-form{
  display:flex;
  gap:12px;
  justify-content:center;
  flex-wrap:wrap;
}
.sub-form input{
  flex:1 1 320px;
  max-width:400px;
  height:48px;
  padding:0 16px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(6,9,17,.7);
  color:var(--ink-1);
  font-size:14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.sub-form input::placeholder{color:var(--ink-3)}
.sub-form input:focus{
  outline:none;
  border-color:var(--brand-2);
  box-shadow:0 0 0 3px rgba(34,224,200,.13);
}
.sub-form input.is-error{border-color:var(--err)}
.sub-form .btn{height:48px;padding:0 26px}
.form-msg{
  min-height:20px;
  margin-top:10px;
  font-size:12px;
  color:var(--ink-3);
}
.form-msg.is-error{color:var(--err)}
.form-msg.is-ok{color:var(--ok)}
.privacy-note{
  margin-top:14px;
  font-size:12px;
  color:var(--ink-3);
}

/* FAQ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  border:1px solid var(--line);
  border-radius:12px;
  background:var(--bg-2);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .22s ease;
}
.faq-item.is-open{border-color:rgba(34,224,200,.42)}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  padding:18px 20px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--ink-1);
}
.faq-icon{
  flex:0 0 18px;
  width:18px;height:18px;
  position:relative;
  color:var(--brand-2);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:currentColor;
  border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease;
}
.faq-a p{
  padding:0 20px 20px;
  font-size:14px;
  line-height:1.8;
  color:var(--ink-2);
}

/* 结尾 CTA */
.cta-band{
  position:relative;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(120deg,rgba(59,77,255,.16),rgba(34,224,200,.08)),
    var(--bg-1);
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:420px;height:420px;
  background:radial-gradient(circle,rgba(34,224,200,.14),transparent 66%);
}
.cta-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:56px 0;
  flex-wrap:wrap;
}
.cta-inner h2{font-size:28px;margin-bottom:10px}
.cta-inner p{font-size:14px;color:var(--ink-2);max-width:560px}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:13px;color:var(--ink-2);line-height:1.8;max-width:340px}
.footer-col h4{
  font-size:13px;
  font-weight:600;
  color:var(--ink-1);
  letter-spacing:.06em;
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:10px}
.footer-col a{
  font-size:13px;
  color:var(--ink-2);
  transition:color .2s ease;
  border-bottom:1px solid transparent;
}
.footer-col a:hover{color:var(--ink-1);border-bottom-color:rgba(234,240,255,.4)}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-top:22px;
  border-top:1px solid var(--line);
  font-size:12px;
  color:var(--ink-3);
  flex-wrap:wrap;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .page-hero h1{font-size:38px}
  .steps{grid-template-columns:1fr 1fr}
  .scene-row{grid-template-columns:48px 1fr;gap:12px 16px}
  .scene-row p{grid-column:2}
  .scene-row .arrow{display:none}
}
@media (max-width:991px){
  .nav-toggle{display:inline-flex}
  .nav-actions .btn-ghost{display:none}
  .nav-channels{
    position:fixed;
    top:0;left:0;bottom:0;
    width:min(82vw,320px);
    height:auto;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:88px 20px 32px;
    background:var(--bg-1);
    border-right:1px solid var(--line);
    transform:translateX(-100%);
    transition:transform .3s ease;
    z-index:120;
    overflow-y:auto;
  }
  .nav-channels.is-open{transform:translateX(0)}
  .channel{
    height:48px;
    padding:0 14px;
    border-radius:10px;
    font-size:15px;
  }
  .channel.is-active{
    background:rgba(34,224,200,.08);
    box-shadow:inset 3px 0 0 var(--brand-2);
  }
  .channel.is-active::after{display:none}
  .hero-inner{grid-template-columns:1fr;gap:32px;padding:48px 0 56px}
  .hero-copy{max-width:none}
  .spots-grid{grid-template-columns:1fr}
  .section{padding:72px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .subscribe-box{padding:36px 24px}
  .cta-inner{padding:48px 0}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .page-hero h1{font-size:30px;line-height:1.25}
  .hero-lead{font-size:15px}
  .section{padding:56px 0}
  .section-head h2{font-size:22px}
  .steps{grid-template-columns:1fr}
  .timeline{padding-left:32px}
  .tl-item::before{left:-28px}
  .subscribe-box h2{font-size:22px}
  .sub-form input{flex:1 1 100%;max-width:none}
  .sub-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .cta-inner h2{font-size:22px}
  .logo-sub{font-size:11px}
}
@media (max-width:480px){
  .logo-sub{display:none}
  .page-hero h1{font-size:26px}
  .hero-meta{font-size:12px;gap:8px}
  .hero-meta .bar{display:none}
  .scene-row{grid-template-columns:1fr;gap:8px}
  .scene-row p{grid-column:1}
  .scene-num{font-size:14px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category4 */
:root{
  --bg-0:#060911;
  --bg-1:#0B1220;
  --bg-2:#101A2E;
  --glass:rgba(255,255,255,.045);
  --line:rgba(140,170,255,.14);
  --line-strong:rgba(140,170,255,.26);
  --ink-1:#EAF0FF;
  --ink-2:#9FB0CC;
  --ink-3:#64748B;
  --brand:#3B4DFF;
  --brand-2:#22E0C8;
  --warm:#FF7A45;
  --ok:#34D399;
  --warn:#F5B942;
  --err:#FF5C5C;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.85);
  --shadow-glow:0 0 0 1px rgba(34,224,200,.45),0 14px 34px -14px rgba(34,224,200,.6);
  --font-sans:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:ui-monospace,"SF Mono","DIN Alternate",monospace;
  --grad-brand:linear-gradient(120deg,#3B4DFF 0%,#22E0C8 100%);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink-1);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;font-weight:600;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:rgba(34,224,200,.28);color:#fff;}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(6,9,17,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header.is-scrolled{background:var(--glass);box-shadow:0 12px 34px -28px rgba(0,0,0,.9);}
.nav-brand-row{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px;}
.logo{display:flex;flex-direction:column;gap:2px;line-height:1.2;}
.logo-mark{
  font-size:22px;font-weight:700;letter-spacing:.02em;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.logo-sub{font-size:12px;color:var(--ink-3);letter-spacing:.02em;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 18px;border-radius:10px;border:1px solid transparent;
  font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease;white-space:nowrap;
}
.btn-primary{background:var(--grad-brand);color:#04121A;border-radius:999px;font-weight:600;box-shadow:var(--shadow-glow);}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(34,224,200,.4);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink-1);}
.btn-ghost:hover{border-color:var(--brand-2);background:var(--glass);}
.btn-lg{height:48px;padding:0 26px;font-size:15px;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:transparent;color:var(--ink-1);cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle svg{width:20px;height:20px;}
.nav-channels{
  display:flex;align-items:center;gap:6px;height:52px;overflow-x:auto;
  scrollbar-width:none;border-top:1px solid rgba(140,170,255,.08);
}
.nav-channels::-webkit-scrollbar{display:none;}
.channel{
  position:relative;display:inline-flex;align-items:center;height:34px;padding:0 14px;
  border-radius:999px;font-size:14px;color:var(--ink-2);white-space:nowrap;transition:color .18s ease,background .18s ease;
}
.channel:hover{color:var(--ink-1);background:rgba(255,255,255,.04);}
.channel.is-active{color:var(--ink-1);font-weight:600;}
.channel.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-9px;height:2px;border-radius:2px;
  background:var(--brand-2);box-shadow:0 0 12px rgba(34,224,200,.8);
}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;padding:84px 0 64px;overflow:hidden;
  background-image:linear-gradient(rgba(6,9,17,.86),rgba(6,9,17,.94)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;top:-140px;left:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(34,224,200,.12),transparent 68%);pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--ink-3);margin-bottom:22px;}
.crumbs a{color:var(--ink-2);}
.crumbs a:hover{color:var(--ink-1);text-decoration:underline;text-underline-offset:3px;}
.crumbs .sep{color:var(--ink-3);opacity:.7;}
.kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;
  color:var(--brand-2);border:1px solid rgba(34,224,200,.3);background:rgba(34,224,200,.07);
  padding:6px 12px;border-radius:var(--radius-sm);margin-bottom:18px;
}
.kicker .dot{width:6px;height:6px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 10px var(--brand-2);}
.page-hero h1{font-size:44px;line-height:1.18;font-weight:700;max-width:820px;}
.page-hero .lead{margin-top:18px;max-width:720px;font-size:16px;color:var(--ink-2);}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;font-size:13px;color:var(--ink-3);}
.hero-meta span{display:inline-flex;align-items:center;gap:6px;}
.hero-meta b{color:var(--ink-1);font-weight:500;font-family:var(--font-mono);}

/* ---------- 步进条 ---------- */
.section{padding:88px 0;}
.section.tight{padding:64px 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px;}
.section-head h2{font-size:30px;line-height:1.28;}
.section-head p{color:var(--ink-2);font-size:14px;max-width:560px;}
.step-track{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;position:relative;}
.step{
  position:relative;padding:24px 22px;border:1px solid var(--line);border-radius:var(--radius-lg);
  background:var(--bg-1);transition:border-color .2s ease,transform .2s ease,background .2s ease;
}
.step:hover{transform:translateY(-2px);border-color:var(--line-strong);background:var(--bg-2);}
.step.is-current{border-color:rgba(34,224,200,.5);background:linear-gradient(160deg,rgba(34,224,200,.09),rgba(16,26,46,.9));box-shadow:0 0 0 1px rgba(34,224,200,.18);}
.step-no{font-family:var(--font-mono);font-size:12px;color:var(--brand-2);letter-spacing:.12em;margin-bottom:10px;display:block;}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--ink-2);line-height:1.7;}
.step-state{position:absolute;top:22px;right:20px;font-size:11px;color:var(--ink-3);border:1px solid var(--line);padding:2px 8px;border-radius:999px;}
.step.is-current .step-state{color:var(--brand-2);border-color:rgba(34,224,200,.4);}

/* ---------- 帮助文档布局 ---------- */
.doc-shell{padding:78px 0;}
.doc-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:40px;align-items:start;}
.toc{
  position:sticky;top:132px;padding:22px 20px;border:1px solid var(--line);border-radius:var(--radius-lg);
  background:var(--bg-1);box-shadow:var(--shadow-card);
}
.toc h3{font-size:13px;color:var(--ink-3);letter-spacing:.1em;margin-bottom:14px;font-weight:500;}
.toc ol{counter-reset:toc;display:flex;flex-direction:column;gap:2px;}
.toc a{
  display:flex;gap:10px;align-items:baseline;padding:8px 10px;border-radius:var(--radius-sm);
  font-size:14px;color:var(--ink-2);transition:all .18s ease;
}
.toc a::before{counter-increment:toc;content:counter(toc,decimal-leading-zero);font-family:var(--font-mono);font-size:11px;color:var(--ink-3);}
.toc a:hover{background:rgba(255,255,255,.04);color:var(--ink-1);}
.toc a.is-active{background:rgba(34,224,200,.09);color:var(--brand-2);}
.toc a.is-active::before{color:var(--brand-2);}

.doc-body{min-width:0;}
.doc-block{
  padding:0 0 34px;margin-bottom:34px;border-bottom:1px solid var(--line);
}
.doc-block:last-of-type{border-bottom:none;margin-bottom:0;}
.doc-body h2{font-size:24px;line-height:1.35;margin-bottom:16px;scroll-margin-top:130px;}
.doc-body h3{font-size:18px;margin:26px 0 10px;}
.doc-body p{color:var(--ink-2);font-size:16px;line-height:1.85;margin-bottom:14px;max-width:760px;}
.doc-body p strong{color:var(--ink-1);font-weight:600;}
.doc-body ul{display:flex;flex-direction:column;gap:10px;margin:0 0 16px;max-width:760px;}
.doc-body ul li{position:relative;padding-left:20px;color:var(--ink-2);font-size:15px;line-height:1.8;}
.doc-body ul li::before{
  content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;border-radius:2px;
  background:var(--brand-2);opacity:.85;
}
.callout{
  display:flex;gap:14px;padding:18px 20px;margin:6px 0 20px;border-radius:var(--radius-md);
  border:1px solid var(--line);border-left:3px solid var(--brand-2);
  background:var(--glass);color:var(--ink-2);font-size:14px;line-height:1.8;
}
.callout svg{flex:0 0 20px;width:20px;height:20px;color:var(--brand-2);margin-top:3px;}
.callout.warm{border-left-color:var(--warm);}
.callout.warm svg{color:var(--warm);}
.figure{
  margin:8px 0 24px;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--bg-2);
}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.figure figcaption{padding:12px 16px;font-size:12px;color:var(--ink-3);border-top:1px solid var(--line);}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-md);margin:4px 0 22px;}
table{width:100%;border-collapse:collapse;font-size:14px;min-width:480px;}
thead th{
  text-align:left;padding:12px 16px;background:var(--bg-2);color:var(--ink-1);font-weight:600;
  font-size:13px;border-bottom:1px solid var(--line);white-space:nowrap;
}
tbody td{padding:12px 16px;color:var(--ink-2);border-bottom:1px solid rgba(140,170,255,.08);}
tbody tr:nth-child(even){background:rgba(255,255,255,.018);}
tbody tr:last-child td{border-bottom:none;}
tbody td:first-child{color:var(--ink-1);font-weight:500;}

/* ---------- FAQ ---------- */
.faq-section{padding:0 0 88px;}
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-md);background:var(--bg-2);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease;
}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item[open]{border-color:rgba(34,224,200,.38);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;cursor:pointer;list-style:none;font-size:16px;font-weight:600;color:var(--ink-1);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";flex:0 0 16px;width:16px;height:16px;
  background:
    linear-gradient(var(--brand-2),var(--brand-2)) center/16px 2px no-repeat,
    linear-gradient(var(--brand-2),var(--brand-2)) center/2px 16px no-repeat;
  transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{padding:0 20px 20px;font-size:14px;color:var(--ink-2);line-height:1.8;}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 96px;}
.cta-inner{
  position:relative;overflow:hidden;text-align:center;padding:56px 32px;border-radius:24px;
  border:1px solid var(--line);
  background:radial-gradient(circle at 20% 0%,rgba(59,77,255,.22),transparent 60%),
             radial-gradient(circle at 85% 100%,rgba(34,224,200,.16),transparent 62%),
             var(--bg-1);
}
.cta-inner h2{font-size:30px;line-height:1.3;margin-bottom:14px;}
.cta-inner p{color:var(--ink-2);font-size:15px;max-width:600px;margin:0 auto 28px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}
.cta-note{margin-top:20px;font-size:12px;color:var(--ink-3);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--ink-3);line-height:1.8;max-width:320px;}
.footer-col h4{font-size:13px;color:var(--ink-1);letter-spacing:.06em;margin-bottom:16px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--ink-3);transition:color .18s ease;}
.footer-col a:hover{color:var(--ink-1);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  font-size:12px;color:var(--ink-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .doc-layout{grid-template-columns:230px minmax(0,1fr);gap:32px;}
}
@media (max-width:991px){
  .page-hero{padding:64px 0 52px;}
  .page-hero h1{font-size:34px;}
  .section{padding:64px 0;}
  .doc-shell{padding:56px 0;}
  .doc-layout{grid-template-columns:minmax(0,1fr);gap:28px;}
  .toc{position:static;order:-1;}
  .toc ol{flex-direction:row;flex-wrap:wrap;gap:6px;}
  .toc a{padding:6px 10px;font-size:13px;background:rgba(255,255,255,.03);}
  .step-track{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-ghost{display:none;}
  .nav-channels{
    position:fixed;top:0;left:0;bottom:0;width:min(300px,84vw);height:100%;
    flex-direction:column;align-items:stretch;gap:4px;padding:88px 18px 24px;
    background:var(--bg-1);border-right:1px solid var(--line);
    transform:translateX(-102%);transition:transform .26s ease;z-index:120;
    overflow-y:auto;border-top:none;
  }
  .nav-channels.is-open{transform:translateX(0);}
  .channel{height:48px;border-radius:10px;font-size:15px;padding:0 14px;}
  .channel.is-active::after{display:none;}
  .channel.is-active{background:rgba(34,224,200,.08);box-shadow:inset 3px 0 0 var(--brand-2);}
  .page-hero h1{font-size:30px;}
  .section-head h2{font-size:22px;}
  .doc-body h2{font-size:20px;}
  .doc-body p{font-size:15px;}
  .cta-inner{padding:40px 22px;border-radius:20px;}
  .cta-inner h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:480px){
  .logo-mark{font-size:20px;}
  .logo-sub{font-size:11px;}
  .hero-meta{flex-direction:column;gap:6px;}
  .btn-lg{width:100%;}
  .cta-actions{flex-direction:column;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category3 */
:root{
  --bg-0:#060911;
  --bg-1:#0B1220;
  --bg-2:#101A2E;
  --glass:rgba(255,255,255,.045);
  --line:rgba(140,170,255,.14);
  --ink-1:#EAF0FF;
  --ink-2:#9FB0CC;
  --ink-3:#64748B;
  --brand:#3B4DFF;
  --brand-2:#22E0C8;
  --warm:#FF7A45;
  --ok:#34D399;
  --warn:#F5B942;
  --err:#FF5C5C;
  --grad:linear-gradient(120deg,#3B4DFF 0%,#22E0C8 100%);
  --r-lg:18px;
  --r-md:12px;
  --r-sm:10px;
  --r-pill:999px;
  --shadow:0 18px 40px -24px rgba(0,0,0,.85);
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:ui-monospace,"SF Mono","DIN Alternate",monospace;
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  color:var(--ink-1);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{letter-spacing:-.01em;line-height:1.28}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:6px}

.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){ .container{max-width:1240px} }

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(6,9,17,.84);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(9,14,26,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:0 14px 34px -26px rgba(0,0,0,.95);
}
.nav-brand-row{
  min-height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.logo{display:flex;align-items:center;gap:12px;min-width:0}
.logo-mark{
  font-family:var(--mono);
  font-size:22px;
  font-weight:700;
  letter-spacing:.02em;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  padding-right:2px;
  position:relative;
}
.logo-mark::after{
  content:"";
  position:absolute;
  right:-8px;
  top:50%;
  width:1px;
  height:18px;
  transform:translateY(-50%);
  background:var(--line);
}
.logo-sub{
  font-size:13px;
  color:var(--ink-2);
  line-height:1.4;
  letter-spacing:.02em;
  padding-left:8px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:40px;
  padding:0 18px;
  border-radius:var(--r-sm);
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{
  background:var(--grad);
  color:#04121A;
  border:1px solid transparent;
  box-shadow:0 0 0 1px rgba(34,224,200,.35),0 14px 34px -18px rgba(34,224,200,.6);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(34,224,200,.55),0 18px 40px -16px rgba(34,224,200,.7)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(34,224,200,.4),0 8px 18px -14px rgba(34,224,200,.6)}
.btn-ghost{
  background:transparent;
  border:1px solid var(--line);
  color:var(--ink-1);
}
.btn-ghost:hover{border-color:var(--brand-2);background:var(--glass);color:#fff}
.btn-ghost:active{transform:translateY(1px)}
.btn-pill{border-radius:var(--r-pill)}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  color:var(--ink-1);
}
.nav-toggle svg{width:20px;height:20px}
.nav-toggle:hover{border-color:var(--brand-2);color:var(--brand-2)}

.nav-channels{
  display:flex;
  align-items:stretch;
  gap:6px;
  min-height:52px;
  overflow-x:auto;
  scrollbar-width:none;
  border-top:1px solid rgba(140,170,255,.08);
}
.nav-channels::-webkit-scrollbar{display:none}
.channel{
  position:relative;
  display:inline-flex;
  align-items:center;
  padding:0 16px;
  font-size:14px;
  color:var(--ink-2);
  white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.channel::after{
  content:"";
  position:absolute;
  left:16px;
  right:16px;
  bottom:0;
  height:2px;
  border-radius:2px;
  background:transparent;
  transition:background .18s ease,box-shadow .18s ease;
}
.channel:hover{color:var(--ink-1)}
.channel.is-active{color:#fff;font-weight:600}
.channel.is-active::after{
  background:var(--brand-2);
  box-shadow:0 0 12px rgba(34,224,200,.85);
}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  transform:scale(1.02);
}
.page-hero-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(700px 320px at 12% 0%,rgba(34,224,200,.12),transparent 70%),
    linear-gradient(180deg,rgba(6,9,17,.86) 0%,rgba(6,9,17,.93) 55%,rgba(6,9,17,.99) 100%);
}
.page-hero-inner{
  position:relative;
  z-index:2;
  padding-top:44px;
  padding-bottom:56px;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  color:var(--ink-3);
  margin-bottom:26px;
  flex-wrap:wrap;
}
.breadcrumb a:hover{color:var(--ink-1);text-decoration:underline;text-underline-offset:3px}
.breadcrumb span{color:var(--ink-3)}
.kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--brand-2);
  border:1px solid rgba(34,224,200,.32);
  background:rgba(34,224,200,.06);
  border-radius:var(--r-pill);
  padding:5px 14px;
  margin-bottom:20px;
}
.kicker .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--brand-2);
  box-shadow:0 0 10px var(--brand-2);
}
.page-hero h1{
  font-size:44px;
  font-weight:700;
  line-height:1.18;
  max-width:820px;
  margin-bottom:18px;
}
.lead{
  font-size:16px;
  color:var(--ink-2);
  max-width:660px;
  line-height:1.85;
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:32px;
}
.stat{
  flex:1 1 160px;
  max-width:220px;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:16px 18px;
  box-shadow:var(--shadow);
}
.stat-num{
  font-family:var(--mono);
  font-size:24px;
  font-weight:700;
  color:#fff;
  letter-spacing:.01em;
  line-height:1.2;
}
.stat-num em{font-style:normal;font-size:13px;color:var(--ink-2);margin-left:4px;font-weight:500}
.stat-label{font-size:12px;color:var(--ink-3);margin-top:4px}

/* ============ 筛选条 ============ */
.filter-section{
  background:var(--bg-1);
  border-bottom:1px solid var(--line);
  padding:26px 0;
}
.filter-bar{
  display:flex;
  gap:12px;
  align-items:center;
  flex-wrap:wrap;
}
.filter-field{
  position:relative;
  flex:1 1 320px;
  min-width:0;
}
.filter-field svg{
  position:absolute;
  left:14px;
  top:50%;
  transform:translateY(-50%);
  width:17px;height:17px;
  color:var(--ink-3);
  pointer-events:none;
}
.filter-input{
  width:100%;
  height:48px;
  padding:0 16px 0 42px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:#080D18;
  color:var(--ink-1);
  font-size:14px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.filter-input::placeholder{color:var(--ink-3)}
.filter-input:focus{
  outline:none;
  border-color:var(--brand-2);
  box-shadow:0 0 0 3px rgba(34,224,200,.14);
}
.filter-select{
  height:48px;
  padding:0 40px 0 16px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:#080D18 url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239FB0CC' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") no-repeat right 14px center/16px;
  color:var(--ink-1);
  font-size:14px;
  appearance:none;
  cursor:pointer;
  min-width:170px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.filter-select:focus{outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(34,224,200,.14)}
.filter-chips{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  margin-top:16px;
}
.chip{
  height:36px;
  padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--bg-2);
  color:var(--ink-2);
  font-size:13px;
  font-weight:500;
  transition:all .18s ease;
}
.chip:hover{color:#fff;border-color:rgba(34,224,200,.5)}
.chip.is-active{
  color:#04121A;
  background:var(--grad);
  border-color:transparent;
  font-weight:600;
  box-shadow:0 0 0 1px rgba(34,224,200,.4);
}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section-alt{background:var(--bg-1)}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
  flex-wrap:wrap;
}
.section-title{
  font-size:30px;
  font-weight:600;
  line-height:1.28;
}
.section-desc{
  font-size:14px;
  color:var(--ink-2);
  margin-top:8px;
  max-width:640px;
}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand-2);
  transition:gap .18s ease,color .18s ease;
}
.link-more:hover{gap:10px;color:#fff}
.link-more svg{width:15px;height:15px}

/* ============ 精选回放 ============ */
.featured-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:24px;
  align-items:stretch;
}
.featured-main{
  position:relative;
  display:block;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--bg-2);
  box-shadow:var(--shadow);
  transition:border-color .2s ease,transform .2s ease;
}
.featured-main:hover{border-color:rgba(34,224,200,.55);transform:translateY(-2px)}
.featured-main .thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--bg-2);
}
.featured-main img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.featured-main:hover img{transform:scale(1.03)}
.featured-main .feat-body{
  position:relative;
  padding:20px 22px 24px;
  background:linear-gradient(180deg,rgba(16,26,46,.4),rgba(16,26,46,.95));
}
.featured-main h3{font-size:20px;font-weight:600;line-height:1.45;margin-bottom:8px}
.featured-main p{font-size:14px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.featured-side{display:flex;flex-direction:column;gap:24px}
.mini-card{
  display:grid;
  grid-template-columns:132px 1fr;
  gap:16px;
  padding:14px;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--bg-2);
  box-shadow:var(--shadow);
  flex:1;
  transition:border-color .2s ease,transform .2s ease,background .2s ease;
}
.mini-card:hover{border-color:rgba(34,224,200,.5);transform:translateY(-2px);background:#111D33}
.mini-thumb{
  position:relative;
  aspect-ratio:16/9;
  border-radius:var(--r-md);
  overflow:hidden;
  background:#0A1120;
}
.mini-thumb img{width:100%;height:100%;object-fit:cover}
.mini-card h3{font-size:15px;font-weight:600;line-height:1.5;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-card .mini-desc{font-size:13px;color:var(--ink-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 时长徽章 / 播放角标 */
.badge-duration{
  position:absolute;
  top:10px;
  left:10px;
  z-index:3;
  font-family:var(--mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  color:#EAF0FF;
  background:rgba(6,9,17,.78);
  border:1px solid rgba(140,170,255,.22);
  border-radius:8px;
  padding:2px 8px;
  backdrop-filter:blur(4px);
}
.play-mark{
  position:absolute;
  inset:0;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(180deg,rgba(6,9,17,.05),rgba(6,9,17,.55));
  opacity:0;
  transition:opacity .22s ease;
}
.play-mark span{
  width:54px;height:54px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:rgba(34,224,200,.16);
  border:1px solid rgba(34,224,200,.6);
  box-shadow:0 0 26px rgba(34,224,200,.35);
  transform:scale(.86);
  transition:transform .22s ease;
}
.play-mark svg{width:20px;height:20px;color:#8FFFF0;margin-left:2px}
a:hover > .play-mark, .replay-thumb:hover .play-mark, .featured-main:hover .play-mark, .mini-card:hover .play-mark{opacity:1}
a:hover > .play-mark span, .replay-thumb:hover .play-mark span, .featured-main:hover .play-mark span, .mini-card:hover .play-mark span{transform:scale(1)}

/* ============ 回放网格 ============ */
.replay-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.replay-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--bg-2);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.replay-card:hover{
  transform:translateY(-4px);
  border-color:rgba(34,224,200,.5);
  box-shadow:0 24px 46px -26px rgba(0,0,0,.95),0 0 0 1px rgba(34,224,200,.2);
}
.replay-thumb{
  position:relative;
  display:block;
  aspect-ratio:16/9;
  overflow:hidden;
  background:#0A1120;
}
.replay-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.replay-card:hover .replay-thumb img{transform:scale(1.04)}
.replay-body{padding:16px 16px 18px;display:flex;flex-direction:column;gap:10px;flex:1}
.replay-body h3{
  font-size:15px;
  font-weight:600;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.replay-body h3 a:hover{color:var(--brand-2)}
.replay-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  color:var(--ink-3);
  flex-wrap:wrap;
}
.replay-meta .tag{
  color:var(--brand-2);
  background:rgba(34,224,200,.08);
  border:1px solid rgba(34,224,200,.24);
  border-radius:6px;
  padding:1px 7px;
  font-size:12px;
  white-space:nowrap;
}
.replay-meta .sep{color:rgba(140,170,255,.35)}
.empty-tip{
  display:none;
  border:1px dashed rgba(140,170,255,.28);
  border-radius:var(--r-lg);
  padding:48px 24px;
  text-align:center;
  color:var(--ink-2);
  font-size:14px;
  background:var(--bg-2);
}
.empty-tip strong{display:block;color:var(--ink-1);font-size:16px;margin-bottom:6px}

/* 分页器 */
.pagination{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  margin-top:44px;
  flex-wrap:wrap;
}
.page-btn{
  min-width:40px;
  height:40px;
  padding:0 14px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--bg-2);
  color:var(--ink-2);
  font-size:14px;
  font-weight:500;
  transition:all .18s ease;
}
.page-btn:hover{color:#fff;border-color:rgba(34,224,200,.5)}
.page-btn.is-active{
  background:var(--grad);
  color:#04121A;
  font-weight:700;
  border-color:transparent;
  box-shadow:0 0 0 1px rgba(34,224,200,.4);
}
.page-btn.is-disabled{opacity:.45;cursor:not-allowed}
.page-btn.is-disabled:hover{color:var(--ink-2);border-color:var(--line)}
.pagination-note{
  width:100%;
  text-align:center;
  font-size:12px;
  color:var(--ink-3);
  margin-top:6px;
}

/* ============ 观看流程 ============ */
.steps-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.step{
  position:relative;
  padding:28px 24px 26px;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--bg-2);
  box-shadow:var(--shadow);
  transition:border-color .2s ease,transform .2s ease;
}
.step:hover{border-color:rgba(34,224,200,.45);transform:translateY(-2px)}
.step-num{
  font-family:var(--mono);
  font-size:13px;
  font-weight:700;
  color:var(--brand-2);
  letter-spacing:.14em;
  margin-bottom:14px;
  display:block;
}
.step h3{font-size:18px;font-weight:600;margin-bottom:10px}
.step p{font-size:14px;color:var(--ink-2);line-height:1.8}
.step::after{
  content:"";
  position:absolute;
  left:0;top:26px;bottom:26px;
  width:2px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--brand-2));
  opacity:.75;
}

/* ============ 观众反馈 ============ */
.voice-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.voice-card{
  padding:26px 24px;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--bg-2);
  display:flex;
  flex-direction:column;
  gap:16px;
  transition:border-color .2s ease,background .2s ease;
}
.voice-card:hover{border-color:rgba(34,224,200,.4);background:#111D33}
.voice-card blockquote{
  margin:0;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-1);
}
.voice-who{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--ink-3);
  margin-top:auto;
}
.voice-avatar{
  width:32px;height:32px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(59,77,255,.2);
  border:1px solid rgba(140,170,255,.24);
  color:#B9C6FF;
  font-size:13px;
  font-weight:600;
  flex-shrink:0;
}

/* ============ FAQ ============ */
.faq-list{
  max-width:820px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:var(--bg-2);
  overflow:hidden;
  transition:border-color .2s ease;
}
.faq-item.is-open{border-color:rgba(34,224,200,.42)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 20px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--ink-1);
  transition:color .18s ease;
}
.faq-q:hover{color:var(--brand-2)}
.faq-icon{
  position:relative;
  width:18px;height:18px;
  flex-shrink:0;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand-2);
  border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease,padding .3s ease;
  padding:0 20px;
}
.faq-item.is-open .faq-a{max-height:360px;padding:0 20px 20px}
.faq-a p{font-size:14px;line-height:1.8;color:var(--ink-2)}

/* ============ 订阅 / CTA ============ */
.cta-band{padding:0 0 96px}
.cta-inner{
  position:relative;
  overflow:hidden;
  border-radius:22px;
  border:1px solid var(--line);
  background:
    radial-gradient(600px 240px at 85% 0%,rgba(34,224,200,.14),transparent 70%),
    linear-gradient(120deg,#0C1526 0%,#101B31 100%);
  padding:52px 48px;
  box-shadow:var(--shadow);
}
.cta-inner::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:var(--grad);
  opacity:.9;
}
.cta-grid{
  display:grid;
  grid-template-columns:1.15fr 1fr;
  gap:40px;
  align-items:center;
}
.cta-inner h2{font-size:28px;font-weight:600;margin-bottom:12px}
.cta-inner p{font-size:14px;color:var(--ink-2);line-height:1.85;max-width:520px}
.subscribe-form{
  display:flex;
  gap:10px;
  margin-top:6px;
}
.subscribe-form input{
  flex:1;
  min-width:0;
  height:48px;
  padding:0 16px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:#080D18;
  color:var(--ink-1);
  font-size:14px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.subscribe-form input::placeholder{color:var(--ink-3)}
.subscribe-form input:focus{outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(34,224,200,.14)}
.subscribe-form button{
  height:48px;
  padding:0 24px;
  border-radius:var(--r-pill);
  background:var(--grad);
  color:#04121A;
  font-size:14px;
  font-weight:700;
  white-space:nowrap;
  border:1px solid transparent;
  box-shadow:0 0 0 1px rgba(34,224,200,.4),0 14px 30px -18px rgba(34,224,200,.65);
  transition:filter .18s ease,transform .18s ease;
}
.subscribe-form button:hover{filter:brightness(1.08);transform:translateY(-1px)}
.subscribe-form button:active{transform:translateY(0)}
.form-hint{
  display:block;
  font-size:12px;
  color:var(--ink-3);
  margin-top:10px;
  min-height:18px;
}
.form-hint.is-ok{color:var(--ok)}
.form-hint.is-err{color:var(--err)}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:13px;color:var(--ink-3);line-height:1.85;max-width:340px}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--ink-1);
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{
  font-size:13px;
  color:var(--ink-3);
  transition:color .18s ease;
  display:inline-block;
}
.footer-col a:hover{color:var(--ink-1);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.footer-bottom{
  border-top:1px solid rgba(140,170,255,.1);
  padding-top:22px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12px;
  color:var(--ink-3);
}
.footer-bottom span{line-height:1.7}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .replay-grid{grid-template-columns:repeat(3,1fr)}
  .page-hero h1{font-size:38px}
  .featured-grid{grid-template-columns:1fr;}
  .featured-side{flex-direction:row}
  .mini-card{grid-template-columns:1fr;}
}
@media (max-width:991px){
  .section{padding:72px 0}
  .cta-band{padding-bottom:72px}
  .page-hero h1{font-size:34px}
  .replay-grid{grid-template-columns:repeat(2,1fr)}
  .featured-side{flex-direction:column}
  .mini-card{grid-template-columns:132px 1fr}
  .steps-grid{grid-template-columns:1fr;gap:16px}
  .voice-grid{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .cta-inner{padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .nav-toggle{display:inline-flex}
  .nav-actions .btn-ghost{display:none}
  .nav-actions .btn-primary{height:38px;padding:0 14px;font-size:13px}
  .logo-sub{display:none}
  .nav-channels{
    position:fixed;
    top:0;right:0;
    width:min(320px,84vw);
    height:100vh;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:88px 20px 28px;
    background:#0A1120;
    border-left:1px solid var(--line);
    border-top:0;
    transform:translateX(100%);
    transition:transform .28s ease;
    z-index:75;
    overflow-y:auto;
    box-shadow:-30px 0 60px -40px rgba(0,0,0,.9);
  }
  .nav-channels.is-open{transform:translateX(0)}
  .channel{
    height:48px;
    padding:0 12px;
    border-radius:var(--r-sm);
    font-size:15px;
  }
  .channel::after{
    left:0;right:auto;top:10px;bottom:10px;
    width:3px;height:auto;
    border-radius:0 3px 3px 0;
  }
  .channel.is-active{background:rgba(34,224,200,.07)}
  .section{padding:56px 0}
  .cta-band{padding-bottom:56px}
  .page-hero-inner{padding-top:32px;padding-bottom:44px}
  .page-hero h1{font-size:30px;line-height:1.24}
  .section-title{font-size:22px}
  .lead{font-size:15px}
  .hero-stats{gap:10px}
  .stat{flex:1 1 100%;max-width:none;padding:14px 16px}
  .filter-bar{flex-direction:column;align-items:stretch}
  .filter-select{width:100%}
  .replay-grid{grid-template-columns:1fr;gap:18px}
  .mini-card{grid-template-columns:1fr}
  .mini-thumb{aspect-ratio:16/9}
  .cta-inner{padding:32px 22px;border-radius:18px}
  .cta-inner h2{font-size:22px}
  .subscribe-form{flex-direction:column}
  .subscribe-form button{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .voice-grid{grid-template-columns:1fr}
}
@media (max-width:480px){
  .logo-mark{font-size:19px}
  .page-hero h1{font-size:26px}
  .replay-meta{font-size:11px}
  .pagination{gap:6px}
  .page-btn{min-width:36px;height:36px;padding:0 10px;font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}
@media (hover:none){
  .play-mark{opacity:.85}
  .play-mark span{transform:scale(.9)}
}