/* roulang page: index */
:root{
  --c-bg:#070c18;
  --c-bg-2:#0b1322;
  --c-bg-3:#101b30;
  --c-surface:rgba(255,255,255,.045);
  --c-surface-2:rgba(255,255,255,.075);
  --c-border:rgba(255,255,255,.10);
  --c-border-strong:rgba(255,255,255,.18);
  --c-text:#e9eefc;
  --c-text-2:#b9c5e0;
  --c-muted:#8798bb;
  --c-primary:#3b82f6;
  --c-primary-2:#2563eb;
  --c-accent:#22d3ee;
  --c-violet:#8b5cf6;
  --grad-brand:linear-gradient(120deg,#22d3ee 0%,#3b82f6 48%,#8b5cf6 100%);
  --radius-s:10px;
  --radius:16px;
  --radius-l:24px;
  --shadow-s:0 6px 18px rgba(0,0,0,.28);
  --shadow:0 18px 46px rgba(0,0,0,.42);
  --shadow-glow:0 18px 50px rgba(59,130,246,.24);
  --sec-pad:76px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;padding:0;
  font-family:var(--font);
  background:var(--c-bg);
  color:var(--c-text);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(900px 520px at 12% -6%,rgba(59,130,246,.20),transparent 60%),
    radial-gradient(760px 460px at 92% 4%,rgba(139,92,246,.18),transparent 62%),
    radial-gradient(900px 600px at 50% 108%,rgba(34,211,238,.12),transparent 65%),
    var(--c-bg);
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-accent);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:#7ee7ff}
h1,h2,h3,h4,h5{margin:0;font-weight:800;line-height:1.28;letter-spacing:.2px;color:#fff}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.sec{padding:var(--sec-pad) 0;position:relative}
.sec-head{margin-bottom:38px}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;
  color:var(--c-accent);background:rgba(34,211,238,.09);
  border:1px solid rgba(34,211,238,.28);border-radius:999px;
  padding:6px 14px;margin-bottom:16px;
}
.sec-title{font-size:clamp(24px,3vw,36px)}
.sec-desc{margin-top:14px;color:var(--c-muted);max-width:760px;font-size:16px}
.grad-text{background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(8,13,24,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--c-border);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{background:rgba(7,11,21,.94);box-shadow:0 12px 34px rgba(0,0,0,.45)}
.topbar{display:flex;align-items:center;gap:18px;padding:12px 0}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:13px;
  background:var(--grad-brand);
  display:grid;place-items:center;
  font-weight:900;font-size:17px;color:#04101f;letter-spacing:-.5px;
  box-shadow:var(--shadow-glow);
}
.brand-name{font-size:19px;font-weight:900;color:#fff;letter-spacing:.4px;white-space:nowrap}
.brand-sub{display:block;font-size:11px;font-weight:600;color:var(--c-muted);letter-spacing:2.2px;text-transform:uppercase}
.topbar-search{
  margin-left:auto;display:flex;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:999px;padding:5px 6px 5px 16px;min-width:230px;
  transition:border-color .25s ease,background .25s ease;
}
.topbar-search:focus-within{border-color:rgba(34,211,238,.55);background:rgba(34,211,238,.07)}
.topbar-search i{color:var(--c-muted);font-size:14px}
.topbar-search input{
  flex:1;background:transparent;border:0;outline:0;color:var(--c-text);
  font-size:14px;padding:6px 8px;
}
.topbar-search input::placeholder{color:#6c7d9e}
.topbar-search button{
  border:0;border-radius:999px;padding:7px 16px;font-size:13px;font-weight:700;
  color:#04101f;background:var(--grad-brand);cursor:pointer;
  transition:transform .2s ease,filter .2s ease;
}
.topbar-search button:hover{transform:translateY(-1px);filter:brightness(1.08)}
.topbar-cta{
  flex-shrink:0;display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:999px;font-size:14px;font-weight:700;
  color:#fff;background:rgba(59,130,246,.16);
  border:1px solid rgba(59,130,246,.45);
  transition:background .25s ease,transform .2s ease;
}
.topbar-cta:hover{background:rgba(59,130,246,.3);color:#fff;transform:translateY(-1px)}
.channelbar{border-top:1px solid rgba(255,255,255,.06);padding:0}
.channel-scroll{
  display:flex;align-items:center;gap:4px;
  overflow-x:auto;scrollbar-width:none;padding:0;
}
.channel-scroll::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;white-space:nowrap;
  padding:14px 16px;font-size:15px;font-weight:600;color:var(--c-text-2);
  transition:color .22s ease;
}
.channel-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:8px;height:2px;
  border-radius:2px;background:var(--grad-brand);
  transform:scaleX(0);transform-origin:left;transition:transform .26s ease;
}
.channel-link:hover{color:#fff}
.channel-link:hover::after,.channel-link.active::after{transform:scaleX(1)}
.channel-link.active{color:#fff}
.trend-chip{
  margin-left:auto;display:inline-flex;align-items:center;gap:7px;white-space:nowrap;
  font-size:12.5px;font-weight:600;color:var(--c-muted);
  padding:6px 13px;border-radius:999px;border:1px dashed var(--c-border-strong);
}
.trend-chip i{color:var(--c-accent)}
.nav-toggle{
  display:none;margin-left:auto;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--c-border);background:var(--c-surface);color:#fff;font-size:17px;
}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;padding:96px 0 84px;isolation:isolate}
.hero-bg{
  position:absolute;inset:0;z-index:-1;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  transform:scale(1.04);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(7,12,24,.86) 0%,rgba(7,12,24,.72) 42%,rgba(7,12,24,.96) 100%),
    linear-gradient(96deg,rgba(7,12,24,.94) 0%,rgba(7,12,24,.55) 58%,rgba(7,12,24,.78) 100%);
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:54px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:700;letter-spacing:1px;
  color:#d7ecff;background:rgba(34,211,238,.12);
  border:1px solid rgba(34,211,238,.36);border-radius:999px;
  padding:7px 15px;margin-bottom:22px;
}
.hero-eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 4px rgba(34,211,238,.2)}
.hero h1{font-size:clamp(29px,4.1vw,50px);letter-spacing:.4px}
.hero-lead{margin-top:20px;font-size:17px;color:var(--c-text-2);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.btn-brand{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 30px;border-radius:999px;border:0;
  font-size:16px;font-weight:700;color:#04101f;background:var(--grad-brand);
  box-shadow:var(--shadow-glow);cursor:pointer;
  transition:transform .22s ease,filter .22s ease,box-shadow .22s ease;
}
.btn-brand:hover{transform:translateY(-2px);filter:brightness(1.07);color:#04101f;box-shadow:0 24px 60px rgba(59,130,246,.4)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 28px;border-radius:999px;
  font-size:16px;font-weight:700;color:#fff;
  background:rgba(255,255,255,.06);border:1px solid var(--c-border-strong);
  transition:background .22s ease,transform .22s ease,border-color .22s ease;
}
.btn-ghost:hover{background:rgba(255,255,255,.13);color:#fff;transform:translateY(-2px);border-color:rgba(255,255,255,.32)}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px;margin-top:46px}
.hero-stat b{display:block;font-size:27px;font-weight:900;line-height:1.1}
.hero-stat span{font-size:13.5px;color:var(--c-muted)}
.hero-card{
  background:linear-gradient(165deg,rgba(255,255,255,.10),rgba(255,255,255,.03));
  border:1px solid var(--c-border-strong);
  border-radius:var(--radius-l);
  padding:14px;box-shadow:var(--shadow);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.hero-card-media{position:relative;border-radius:var(--radius);overflow:hidden}
.hero-card-media img{width:100%;height:250px;object-fit:cover;transition:transform .6s ease}
.hero-card:hover .hero-card-media img{transform:scale(1.06)}
.hero-card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,24,0) 40%,rgba(7,12,24,.88) 100%);
}
.play-btn{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:64px;height:64px;border-radius:50%;border:0;cursor:pointer;
  background:rgba(255,255,255,.16);backdrop-filter:blur(6px);
  color:#fff;font-size:20px;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.4);
  transition:transform .25s ease,background .25s ease;
}
.play-btn:hover{transform:translate(-50%,-50%) scale(1.08);background:rgba(59,130,246,.55)}
.hero-card-tag{
  position:absolute;left:14px;top:14px;z-index:2;
  font-size:12px;font-weight:700;letter-spacing:.6px;
  padding:5px 12px;border-radius:999px;color:#04101f;background:var(--grad-brand);
}
.hero-card-body{padding:18px 12px 10px}
.hero-card-body h3{font-size:19px}
.hero-card-body p{margin-top:9px;font-size:14.5px;color:var(--c-muted)}
.hero-card-meta{display:flex;gap:16px;margin-top:14px;font-size:13px;color:var(--c-muted)}
.hero-card-meta i{color:var(--c-accent);margin-right:5px}

/* ===== Feature cards ===== */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.feature-card{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--radius);padding:28px 24px;height:100%;
  transition:transform .28s ease,border-color .28s ease,background .28s ease,box-shadow .28s ease;
}
.feature-card:hover{transform:translateY(-6px);border-color:rgba(59,130,246,.5);background:var(--c-surface-2);box-shadow:var(--shadow)}
.feature-ico{
  width:52px;height:52px;border-radius:15px;display:grid;place-items:center;
  font-size:20px;color:#04101f;background:var(--grad-brand);margin-bottom:18px;
}
.feature-card h3{font-size:18px;margin-bottom:10px}
.feature-card p{font-size:14.5px;color:var(--c-muted)}

/* ===== Channels ===== */
.channel-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.channel-card{
  display:flex;gap:20px;align-items:stretch;
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--radius-l);overflow:hidden;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease,background .28s ease;
}
.channel-card:hover{transform:translateY(-6px);border-color:rgba(139,92,246,.5);box-shadow:var(--shadow);background:var(--c-surface-2)}
.channel-card-img{width:170px;flex-shrink:0;overflow:hidden}
.channel-card-img img{width:100%;height:100%;min-height:170px;object-fit:cover;transition:transform .6s ease}
.channel-card:hover .channel-card-img img{transform:scale(1.07)}
.channel-card-body{padding:24px 24px 24px 0;display:flex;flex-direction:column}
.channel-card-body h3{font-size:19px;margin-bottom:10px}
.channel-card-body p{font-size:14.5px;color:var(--c-muted)}
.channel-card-foot{margin-top:auto;padding-top:16px;display:flex;align-items:center;gap:10px;font-size:14px;font-weight:700;color:var(--c-accent)}
.channel-card-foot i{transition:transform .25s ease}
.channel-card:hover .channel-card-foot i{transform:translateX(5px)}
.badge-soft{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.5px;
  padding:4px 11px;border-radius:999px;color:#cfe6ff;
  background:rgba(59,130,246,.16);border:1px solid rgba(59,130,246,.35);
}

/* ===== Showcase strip ===== */
.strip{background:linear-gradient(180deg,rgba(11,19,34,0) 0%,rgba(11,19,34,.9) 25%,rgba(11,19,34,.9) 75%,rgba(11,19,34,0) 100%)}
.scroll-x{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(260px,1fr);
  gap:20px;overflow-x:auto;padding:6px 4px 18px;
  scroll-snap-type:x mandatory;scrollbar-width:thin;
}
.scroll-x::-webkit-scrollbar{height:6px}
.scroll-x::-webkit-scrollbar-thumb{background:rgba(255,255,255,.16);border-radius:999px}
.poster{
  scroll-snap-align:start;position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--c-border);background:var(--c-bg-3);
  transition:transform .28s ease,border-color .28s ease;
}
.poster:hover{transform:translateY(-5px);border-color:rgba(34,211,238,.46)}
.poster img{height:176px;width:100%;object-fit:cover}
.poster-info{padding:16px}
.poster-info h4{font-size:16px;margin-bottom:7px}
.poster-info p{font-size:13.5px;color:var(--c-muted)}
.poster-flag{
  position:absolute;right:12px;top:12px;
  font-size:11.5px;font-weight:800;letter-spacing:.5px;
  padding:4px 10px;border-radius:999px;color:#04101f;background:var(--c-accent);
}

/* ===== Stats band ===== */
.stats-band{
  border:1px solid var(--c-border);border-radius:var(--radius-l);
  background:linear-gradient(120deg,rgba(59,130,246,.14),rgba(139,92,246,.12));
  padding:36px 30px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.stat-item{text-align:center}
.stat-item b{display:block;font-size:32px;font-weight:900;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-item span{display:block;margin-top:6px;font-size:14px;color:var(--c-text-2)}

/* ===== CMS latest list ===== */
.news-list{display:grid;gap:16px}
.news-item{
  display:flex;align-items:center;gap:20px;
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--radius);padding:20px 24px;
  transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.news-item:hover{transform:translateX(6px);border-color:rgba(34,211,238,.46);background:var(--c-surface-2)}
.news-no{
  flex-shrink:0;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  font-weight:900;font-size:15px;color:#04101f;background:var(--grad-brand);
}
.news-main{flex:1;min-width:0}
.news-main h3{font-size:17px}
.news-main h3 a{color:#fff}
.news-main h3 a:hover{color:var(--c-accent)}
.news-main p{margin-top:8px;font-size:14px;color:var(--c-muted);overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.news-meta{display:flex;flex-wrap:wrap;gap:14px;margin-top:10px;font-size:12.5px;color:var(--c-muted)}
.news-meta i{color:var(--c-accent);margin-right:5px}
.news-arrow{flex-shrink:0;color:var(--c-muted);font-size:18px;transition:transform .25s ease,color .25s ease}
.news-item:hover .news-arrow{transform:translateX(4px);color:var(--c-accent)}
.empty-note{
  border:1px dashed var(--c-border-strong);border-radius:var(--radius);
  padding:32px;text-align:center;color:var(--c-muted);font-size:15px;
}

/* ===== Testimonials ===== */
.quote-card{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--radius);padding:26px;height:100%;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.quote-card:hover{transform:translateY(-5px);border-color:rgba(139,92,246,.45);box-shadow:var(--shadow)}
.quote-card .stars{color:#ffd166;font-size:13px;letter-spacing:3px;margin-bottom:14px}
.quote-card p{font-size:15px;color:var(--c-text-2)}
.quote-who{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--c-border)}
.avatar{
  width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  font-weight:800;font-size:15px;color:#04101f;background:var(--grad-brand);
}
.quote-who b{display:block;font-size:14.5px;color:#fff}
.quote-who span{font-size:12.5px;color:var(--c-muted)}

/* ===== FAQ ===== */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--radius);margin-bottom:14px;overflow:hidden;
  transition:border-color .25s ease,background .25s ease;
}
.faq-item.open{border-color:rgba(34,211,238,.45);background:var(--c-surface-2)}
.faq-q{
  width:100%;text-align:left;border:0;background:transparent;color:#fff;
  font-size:16.5px;font-weight:700;padding:20px 56px 20px 22px;
  position:relative;cursor:pointer;line-height:1.6;
}
.faq-q i{
  position:absolute;right:22px;top:50%;transform:translateY(-50%);
  color:var(--c-accent);font-size:15px;transition:transform .3s ease;
}
.faq-item.open .faq-q i{transform:translateY(-50%) rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease}
.faq-a p{padding:0 22px 22px;font-size:14.8px;color:var(--c-muted)}

/* ===== CTA ===== */
.cta-box{
  position:relative;overflow:hidden;
  border-radius:var(--radius-l);border:1px solid var(--c-border-strong);
  padding:58px 40px;text-align:center;
  background-image:linear-gradient(180deg,rgba(9,14,26,.88),rgba(9,14,26,.94)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.cta-box h2{font-size:clamp(24px,3vw,36px)}
.cta-box p{margin:16px auto 0;max-width:660px;color:var(--c-text-2);font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px}
.cta-tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:26px}
.cta-tags span{
  font-size:13px;color:var(--c-text-2);padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid var(--c-border);
}

/* ===== Footer ===== */
.site-footer{
  margin-top:40px;border-top:1px solid var(--c-border);
  background:rgba(6,10,20,.86);padding:56px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand .brand-mark{width:38px;height:38px;border-radius:12px;font-size:15px}
.footer-brand b{font-size:17px;color:#fff}
.footer-about{font-size:14px;color:var(--c-muted);max-width:330px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:#fff}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--c-muted)}
.footer-col a:hover{color:var(--c-accent)}
.footer-contact li{font-size:14px;color:var(--c-muted);display:flex;gap:10px;align-items:flex-start;margin-bottom:12px}
.footer-contact i{color:var(--c-accent);margin-top:4px}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid var(--c-border);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--c-muted);
}
.footer-bottom .tips{max-width:660px}

@media (max-width:1024px){
  :root{--sec-pad:62px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .channel-grid{grid-template-columns:1fr}
  .stats-band{grid-template-columns:repeat(2,1fr);gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .topbar-search{min-width:190px}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .topbar{flex-wrap:wrap}
  .topbar-search{order:3;width:100%;margin-left:0;min-width:0}
  .topbar-cta{display:none}
  .nav-toggle{display:grid;place-items:center}
  .trend-chip{display:none}
  .channel-scroll{
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(7,11,21,.98);border-bottom:1px solid var(--c-border);
    padding:8px 0 14px;max-height:0;overflow:hidden;
    transition:max-height .3s ease;box-shadow:var(--shadow);
  }
  .channel-scroll.show{max-height:420px;overflow-y:auto}
  .channel-link{padding:13px 22px}
  .channel-link::after{left:22px;right:auto;width:26px;bottom:9px}
  .channel-link:hover::after,.channel-link.active::after{transform:scaleX(1)}
  .hero{padding:64px 0 56px}
  .hero-stats{gap:24px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .channel-card{flex-direction:column}
  .channel-card-img{width:100%}
  .channel-card-img img{min-height:190px;height:190px}
  .channel-card-body{padding:0 22px 24px}
  .news-item{align-items:flex-start;flex-wrap:wrap}
  .news-arrow{display:none}
  .cta-box{padding:44px 22px}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand-sub{display:none}
  .brand-name{font-size:17px}
  .hero h1{font-size:26px}
  .hero-stat b{font-size:23px}
  .stats-band{grid-template-columns:1fr;padding:28px 20px}
  .sec-title{font-size:23px}
  .btn-brand,.btn-ghost{width:100%;justify-content:center}
}

/* roulang page: article */
:root{
  --bg:#070b14;
  --bg-2:#0b1220;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.07);
  --surface-solid:#101a2d;
  --border:rgba(255,255,255,.10);
  --border-strong:rgba(255,255,255,.20);
  --text:#eaf0ff;
  --text-2:#c3cee6;
  --muted:#8f9dbd;
  --primary:#4f8cff;
  --primary-soft:rgba(79,140,255,.16);
  --teal:#38e0d8;
  --violet:#8b5cf6;
  --gold:#ffc861;
  --radius-sm:12px;
  --radius:18px;
  --radius-lg:28px;
  --shadow-sm:0 8px 24px -14px rgba(0,0,0,.8);
  --shadow:0 26px 60px -34px rgba(0,0,0,.95);
  --container:1200px;
  --gap:26px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 82% -12%, rgba(79,140,255,.18), transparent 62%),
    radial-gradient(900px 520px at 6% 6%, rgba(56,224,216,.12), transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--teal)}
h1,h2,h3,h4,h5{margin:0;line-height:1.3;font-weight:800;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,20,.86);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--border);
}
.topbar{display:flex;align-items:center;gap:18px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:44px;height:44px;border-radius:14px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--teal));
  color:#06101f;font-weight:900;font-size:15px;letter-spacing:.5px;
  box-shadow:0 10px 26px -12px rgba(79,140,255,.9);
}
.brand-name{display:block;font-size:17px;font-weight:800;letter-spacing:.3px}
.brand-sub{display:block;font-size:12px;color:var(--muted);letter-spacing:.4px}
.topbar-search{
  flex:1;min-width:180px;max-width:460px;margin-left:auto;
  display:flex;align-items:center;gap:10px;
  padding:8px 8px 8px 14px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:999px;
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.topbar-search:focus-within{border-color:rgba(79,140,255,.65);box-shadow:0 0 0 4px rgba(79,140,255,.14);background:var(--surface-2)}
.topbar-search i{color:var(--muted);font-size:13px}
.topbar-search input{flex:1;min-width:0;background:none;border:0;outline:none;font-size:14px}
.topbar-search input::placeholder{color:#6c7a99}
.topbar-search button{
  padding:7px 18px;border-radius:999px;font-size:14px;font-weight:700;
  background:linear-gradient(135deg,var(--primary),#3f6fe0);color:#fff;
  transition:transform .2s ease,box-shadow .2s ease;
}
.topbar-search button:hover{transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(79,140,255,1)}
.topbar-cta{
  display:inline-flex;align-items:center;gap:8px;flex-shrink:0;
  padding:10px 20px;border-radius:999px;font-size:14px;font-weight:700;
  color:#06101f;background:linear-gradient(135deg,var(--teal),#5ef0c4);
  box-shadow:0 14px 30px -18px rgba(56,224,216,1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.topbar-cta:hover{color:#06101f;transform:translateY(-2px);box-shadow:0 20px 34px -18px rgba(56,224,216,1)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--border);background:var(--surface);color:var(--text);
}
.channelbar{border-top:1px solid var(--border);background:rgba(11,18,32,.6)}
.channel-scroll{display:flex;align-items:center;gap:8px;padding:9px 0;overflow-x:auto;scrollbar-width:none}
.channel-scroll::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;white-space:nowrap;padding:8px 16px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--text-2);
  border:1px solid transparent;
  transition:all .22s ease;
}
.channel-link:hover{color:var(--text);background:var(--surface-2);border-color:var(--border)}
.channel-link.active{
  color:#fff;background:linear-gradient(135deg,rgba(79,140,255,.9),rgba(139,92,246,.85));
  border-color:transparent;box-shadow:0 12px 26px -16px rgba(79,140,255,1);
}
.trend-chip{
  margin-left:auto;white-space:nowrap;
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;font-size:13px;color:var(--gold);
  background:rgba(255,200,97,.10);border:1px solid rgba(255,200,97,.28);
}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;
  padding:64px 0 56px;
  background-image:linear-gradient(105deg,rgba(7,11,20,.94) 8%,rgba(7,11,20,.72) 52%,rgba(7,11,20,.94)),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--border);
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:140px;
  background:linear-gradient(to top,var(--bg),transparent);pointer-events:none;
}
.crumb{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-bottom:20px}
.crumb a{color:var(--text-2)}
.crumb span.sep{opacity:.5}
.crumb .current{color:var(--teal)}
.hero-tags{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:var(--primary-soft);color:#bcd4ff;border:1px solid rgba(79,140,255,.35);
}
.tag.tag-teal{background:rgba(56,224,216,.12);color:#a9f4ef;border-color:rgba(56,224,216,.32)}
.tag.tag-gold{background:rgba(255,200,97,.12);color:#ffd894;border-color:rgba(255,200,97,.32)}
.article-hero h1{
  position:relative;z-index:2;
  font-size:clamp(26px,3.6vw,42px);
  max-width:900px;letter-spacing:.5px;
  text-wrap:balance;
}
.hero-lead{
  position:relative;z-index:2;margin-top:18px;max-width:780px;
  font-size:16px;color:var(--text-2);
}
.hero-stats{
  position:relative;z-index:2;
  margin-top:30px;display:flex;flex-wrap:wrap;gap:14px;
}
.stat{
  min-width:150px;padding:14px 20px;border-radius:var(--radius);
  background:var(--surface);border:1px solid var(--border);backdrop-filter:blur(10px);
}
.stat b{display:block;font-size:19px;color:#fff}
.stat span{font-size:13px;color:var(--muted)}

/* ---------- article layout ---------- */
.article-wrap{padding:54px 0 20px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:var(--gap);align-items:start}
.article-card{
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:38px 40px 42px;
  box-shadow:var(--shadow);
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:12px 22px;
  padding-bottom:22px;margin-bottom:26px;
  border-bottom:1px dashed var(--border);
  font-size:13.5px;color:var(--muted);
}
.article-meta i{color:var(--primary);margin-right:6px}
.article-body{font-size:16.5px;color:var(--text-2)}
.article-body > * + *{margin-top:18px}
.article-body h2{
  margin-top:38px;font-size:24px;color:#fff;
  padding-left:16px;border-left:4px solid var(--primary);
}
.article-body h3{margin-top:28px;font-size:19px;color:#e6eeff}
.article-body h4{margin-top:22px;font-size:17px;color:#dbe6ff}
.article-body p{color:var(--text-2)}
.article-body a{color:var(--teal);border-bottom:1px solid rgba(56,224,216,.4)}
.article-body strong{color:#fff}
.article-body ul,.article-body ol{padding-left:22px;list-style:disc;color:var(--text-2)}
.article-body ol{list-style:decimal}
.article-body li{margin:8px 0}
.article-body img{border-radius:var(--radius);border:1px solid var(--border);margin:24px 0}
.article-body blockquote{
  margin:26px 0;padding:18px 24px;border-radius:var(--radius);
  background:rgba(79,140,255,.08);border-left:4px solid var(--primary);
  color:#cddcff;
}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;overflow:hidden;border-radius:var(--radius)}
.article-body th,.article-body td{padding:12px 14px;border:1px solid var(--border);text-align:left}
.article-body th{background:var(--surface-2);color:#fff}
.article-body code{padding:2px 7px;border-radius:6px;background:rgba(255,255,255,.08);font-size:14px}
.empty-state{
  padding:46px 30px;text-align:center;border-radius:var(--radius);
  border:1px dashed var(--border-strong);background:var(--surface);
}
.empty-state i{font-size:34px;color:var(--primary);margin-bottom:14px;display:block}
.empty-state h3{font-size:20px;margin-bottom:10px}
.empty-state p{color:var(--muted);margin-bottom:20px}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 22px;border-radius:999px;font-size:14px;font-weight:700;
  border:1px solid var(--border-strong);color:var(--text);background:var(--surface);
  transition:all .22s ease;
}
.btn-ghost:hover{background:var(--surface-2);color:#fff;transform:translateY(-2px)}

/* aside */
.article-aside{display:flex;flex-direction:column;gap:20px;position:sticky;top:150px}
.side-card{
  padding:24px;border-radius:var(--radius);
  background:var(--surface);border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
}
.side-card h3{font-size:16px;margin-bottom:16px;display:flex;align-items:center;gap:9px}
.side-card h3 i{color:var(--teal)}
.side-list li + li{margin-top:9px}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 14px;border-radius:var(--radius-sm);font-size:14.5px;
  background:rgba(255,255,255,.03);border:1px solid transparent;
  transition:all .22s ease;
}
.side-list a:hover{background:var(--surface-2);border-color:var(--border);color:#fff;transform:translateX(3px)}
.side-list i{font-size:12px;color:var(--muted)}
.side-note{font-size:14px;color:var(--muted);line-height:1.8}
.side-note b{color:var(--gold)}

/* ---------- key points ---------- */
.section{padding:62px 0}
.section-head{max-width:720px;margin-bottom:34px}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;
  color:var(--teal);margin-bottom:12px;
}
.section-head h2{font-size:clamp(23px,3vw,32px)}
.section-head p{margin-top:14px;color:var(--muted)}
.point-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.point-card{
  padding:28px 26px;border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--border);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.point-card:hover{transform:translateY(-6px);border-color:rgba(79,140,255,.5);box-shadow:var(--shadow)}
.point-icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  font-size:19px;color:#fff;margin-bottom:18px;
  background:linear-gradient(135deg,var(--primary),var(--violet));
}
.point-card h3{font-size:18px;margin-bottom:10px}
.point-card p{font-size:14.6px;color:var(--muted)}

/* ---------- channel cards ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.channel-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius);border:1px solid var(--border);
  background:var(--surface-solid);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.channel-card:hover{transform:translateY(-6px);border-color:rgba(56,224,216,.45);box-shadow:var(--shadow)}
.channel-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.channel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.channel-card:hover .channel-thumb img{transform:scale(1.07)}
.channel-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(11,18,32,.9),transparent 65%)}
.channel-body{padding:22px 22px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.channel-body h3{font-size:18px}
.channel-body p{font-size:14.4px;color:var(--muted);flex:1}
.channel-more{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--teal)}
.channel-card:hover .channel-more{gap:12px}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{
  border-radius:var(--radius);border:1px solid var(--border);
  background:var(--surface);overflow:hidden;
  transition:border-color .25s ease,background .25s ease;
}
.faq-item[open]{border-color:rgba(79,140,255,.45);background:var(--surface-2)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16.5px;font-weight:700;color:#fff;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--primary);transition:transform .25s ease;flex-shrink:0}
.faq-item[open] summary i{transform:rotate(45deg)}
.faq-body{padding:0 24px 22px;font-size:15px;color:var(--muted)}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  padding:52px 46px;
  background-image:linear-gradient(115deg,rgba(9,15,28,.93),rgba(9,15,28,.66)),
    url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  border:1px solid var(--border);
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(23px,3vw,32px);max-width:640px}
.cta-band p{margin-top:14px;max-width:620px;color:var(--text-2)}
.cta-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px}
.btn-primary-solid{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 28px;border-radius:999px;font-size:15px;font-weight:800;color:#06101f;
  background:linear-gradient(135deg,var(--teal),#63f2c6);
  box-shadow:0 18px 38px -20px rgba(56,224,216,1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.btn-primary-solid:hover{color:#06101f;transform:translateY(-3px);box-shadow:0 24px 44px -20px rgba(56,224,216,1)}
.btn-line{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 28px;border-radius:999px;font-size:15px;font-weight:700;color:#fff;
  border:1px solid var(--border-strong);background:rgba(255,255,255,.05);
  transition:all .22s ease;
}
.btn-line:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-3px)}

/* ---------- footer ---------- */
.site-footer{margin-top:70px;border-top:1px solid var(--border);background:rgba(8,13,23,.9);padding:56px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand b{font-size:16.5px}
.footer-about{font-size:14.4px;color:var(--muted);max-width:360px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:#fff}
.footer-col ul li + li{margin-top:10px}
.footer-col a{font-size:14.4px;color:var(--muted)}
.footer-col a:hover{color:var(--teal)}
.footer-contact li{display:flex;gap:10px;font-size:14.2px;color:var(--muted);align-items:flex-start}
.footer-contact i{color:var(--primary);margin-top:5px}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid var(--border);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.4px;color:var(--muted);
}
.footer-bottom .tips{max-width:760px}
.footer-bottom .tips b{color:var(--gold)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .article-layout{grid-template-columns:1fr}
  .article-aside{position:static;flex-direction:row;flex-wrap:wrap}
  .article-aside .side-card{flex:1 1 280px}
  .point-grid,.channel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .topbar{flex-wrap:wrap;gap:12px;padding:12px 0}
  .topbar-search{order:3;flex:1 1 100%;max-width:none;margin-left:0}
  .topbar-cta{display:none}
  .nav-toggle{display:grid;place-items:center;margin-left:auto}
  .channel-scroll{display:none;flex-direction:column;align-items:stretch;padding:8px 0 14px}
  .channel-scroll.open{display:flex}
  .channel-link{padding:11px 14px;border-radius:var(--radius-sm)}
  .trend-chip{margin-left:0;justify-content:center;white-space:normal;text-align:center}
  .article-hero{padding:44px 0 40px}
  .article-card{padding:26px 22px 30px}
  .article-body{font-size:16px}
  .article-body h2{font-size:21px}
  .cta-band{padding:34px 24px}
  .section{padding:46px 0}
}
@media (max-width:520px){
  .brand-sub{display:none}
  .point-grid,.channel-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .stat{flex:1 1 45%;min-width:0;padding:12px 16px}
  .article-meta{gap:8px 16px;font-size:13px}
  .btn-primary-solid,.btn-line,.btn-ghost{width:100%;justify-content:center}
  .cta-actions{flex-direction:column}
}

/* roulang page: category1 */
:root{
  --pg-bg:#f4f6fb;
  --pg-deep:#0b1226;
  --pg-surface:#ffffff;
  --pg-ink:#101a33;
  --pg-ink-soft:#33405f;
  --pg-muted:#6f7c99;
  --pg-line:#e3e9f5;
  --pg-brand:#3a5bf5;
  --pg-brand-deep:#2540cf;
  --pg-brand-soft:#eef2ff;
  --pg-accent:#ff7a45;
  --pg-accent-soft:#fff1e9;
  --pg-teal:#12b8a6;
  --pg-radius-xs:8px;
  --pg-radius-sm:12px;
  --pg-radius:18px;
  --pg-radius-lg:26px;
  --pg-shadow-sm:0 2px 8px rgba(16,26,51,.06);
  --pg-shadow:0 14px 34px rgba(16,26,51,.09);
  --pg-shadow-lg:0 26px 60px rgba(16,26,51,.16);
  --pg-container:1200px;
  --pg-ease:cubic-bezier(.22,.68,.32,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  background:var(--pg-bg);
  color:var(--pg-ink);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .22s var(--pg-ease)}
a:hover{color:var(--pg-brand)}
button{font:inherit;cursor:pointer}
input,button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:3px solid rgba(58,91,245,.4);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:var(--pg-container);margin:0 auto;padding-left:20px;padding-right:20px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--pg-line);
  transition:box-shadow .28s var(--pg-ease);
}
.site-header.is-stuck{box-shadow:0 10px 30px rgba(16,26,51,.1)}
.topbar{display:flex;align-items:center;gap:20px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  font-weight:800;font-size:15px;letter-spacing:.5px;color:#fff;
  background:linear-gradient(135deg,#3a5bf5,#12b8a6);
  box-shadow:0 8px 18px rgba(58,91,245,.32);
}
.brand-name{display:block;font-weight:800;font-size:17px;color:var(--pg-ink);letter-spacing:-.02em}
.brand-sub{display:block;font-size:12px;color:var(--pg-muted);letter-spacing:.02em}
.topbar-search{
  flex:0 1 400px;margin-left:auto;display:flex;align-items:center;gap:8px;
  background:#f2f5fc;border:1px solid var(--pg-line);border-radius:999px;
  padding:5px 5px 5px 16px;transition:.26s var(--pg-ease);
}
.topbar-search:focus-within{border-color:rgba(58,91,245,.5);background:#fff;box-shadow:0 0 0 4px rgba(58,91,245,.1)}
.topbar-search i{color:var(--pg-muted);font-size:14px}
.topbar-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:var(--pg-ink)}
.topbar-search input::placeholder{color:#9aa6c0}
.topbar-search button{
  border:0;background:var(--pg-brand);color:#fff;border-radius:999px;
  padding:8px 18px;font-size:14px;font-weight:600;transition:.24s var(--pg-ease);
}
.topbar-search button:hover{background:var(--pg-brand-deep)}
.topbar-cta{
  display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:999px;
  background:linear-gradient(135deg,var(--pg-brand),#5d7bff);color:#fff;
  font-size:14px;font-weight:700;white-space:nowrap;
  box-shadow:0 10px 22px rgba(58,91,245,.28);transition:.26s var(--pg-ease);
}
.topbar-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(58,91,245,.36)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--pg-line);background:#fff;color:var(--pg-ink);font-size:17px;
}
.nav-toggle:hover{border-color:rgba(58,91,245,.45);color:var(--pg-brand)}

.channelbar{border-top:1px solid var(--pg-line);background:linear-gradient(180deg,#fff,#fbfcff)}
.channel-scroll{display:flex;align-items:center;gap:8px;padding:10px 0;overflow-x:auto;scrollbar-width:none}
.channel-scroll::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;padding:8px 14px;border-radius:10px;
  font-size:14.5px;font-weight:600;color:var(--pg-ink-soft);white-space:nowrap;
  transition:.22s var(--pg-ease);
}
.channel-link:hover{background:var(--pg-brand-soft);color:var(--pg-brand)}
.channel-link.active{color:var(--pg-brand);background:var(--pg-brand-soft)}
.channel-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--pg-brand);
}
.trend-chip{
  margin-left:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:#b4531c;background:var(--pg-accent-soft);
  border:1px solid #ffdcc9;padding:6px 14px;border-radius:999px;white-space:nowrap;
}

/* ---------- 首屏 ---------- */
.hero{position:relative;isolation:isolate;overflow:hidden;background:var(--pg-deep);color:#fff}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.55;transform:scale(1.02);
}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(110deg,rgba(6,11,24,.95) 0%,rgba(9,16,36,.84) 44%,rgba(13,22,48,.55) 100%);
}
.hero-inner{position:relative;z-index:2;padding-top:72px;padding-bottom:78px}
.hero-inner > *{max-width:860px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.62);margin-bottom:20px}
.crumbs a{color:rgba(255,255,255,.78)}
.crumbs a:hover{color:#fff}
.crumbs i{font-size:10px;opacity:.6}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  font-size:13.5px;color:#dbe4ff;backdrop-filter:blur(6px);
}
.hero h1{margin:18px 0 0;font-size:clamp(28px,4.2vw,46px);line-height:1.2;letter-spacing:-.02em;color:#fff}
.hero-lead{margin-top:18px;font-size:16px;line-height:1.95;color:rgba(255,255,255,.76)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:44px}
.hero-stat{
  padding:16px 18px;border-radius:16px;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(8px);
}
.hero-stat b{display:block;font-size:24px;font-weight:800;color:#fff;letter-spacing:-.02em}
.hero-stat span{font-size:13px;color:rgba(255,255,255,.68)}

/* ---------- 按钮 ---------- */
.btn-pg{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 28px;border-radius:14px;font-size:15px;font-weight:700;
  border:1px solid transparent;cursor:pointer;transition:.26s var(--pg-ease);
}
.btn-pg-primary{background:linear-gradient(135deg,#3a5bf5,#6b86ff);color:#fff;box-shadow:0 14px 30px rgba(58,91,245,.38)}
.btn-pg-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 36px rgba(58,91,245,.46)}
.btn-pg-ghost{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.3);color:#fff}
.btn-pg-ghost:hover{background:rgba(255,255,255,.17);color:#fff}
.btn-pg-light{background:#fff;color:var(--pg-brand);box-shadow:var(--pg-shadow)}
.btn-pg-light:hover{color:var(--pg-brand-deep);transform:translateY(-2px);box-shadow:var(--pg-shadow-lg)}
.btn-pg-outline{background:transparent;border-color:rgba(255,255,255,.42);color:#fff}
.btn-pg-outline:hover{background:rgba(255,255,255,.14);color:#fff}

/* ---------- 板块 ---------- */
.section{padding:72px 0}
.section-alt{background:var(--pg-surface)}
.section-head{max-width:740px;margin-bottom:40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  letter-spacing:.06em;color:var(--pg-brand);
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--pg-brand)}
.section-title{margin-top:12px;font-size:clamp(23px,3vw,34px);letter-spacing:-.02em}
.section-desc{margin-top:14px;color:var(--pg-muted);font-size:15.5px;line-height:1.9}

/* ---------- 主题标签 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px}
.tag{
  display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:999px;
  background:#fff;border:1px solid var(--pg-line);font-size:14px;font-weight:600;
  color:var(--pg-ink-soft);box-shadow:var(--pg-shadow-sm);transition:.24s var(--pg-ease);
}
.tag:hover{border-color:rgba(58,91,245,.42);color:var(--pg-brand);transform:translateY(-2px);box-shadow:0 12px 24px rgba(58,91,245,.14)}
.tag.is-on{background:linear-gradient(135deg,var(--pg-brand),#6884ff);color:#fff;border-color:transparent;box-shadow:0 12px 26px rgba(58,91,245,.3)}
.tag i{font-size:13px;opacity:.9}

/* ---------- 作品卡片 ---------- */
.game-card{
  height:100%;display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--pg-line);border-radius:var(--pg-radius);overflow:hidden;
  box-shadow:var(--pg-shadow-sm);transition:.3s var(--pg-ease);
}
.game-card:hover{transform:translateY(-6px);box-shadow:var(--pg-shadow-lg);border-color:rgba(58,91,245,.28)}
.game-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#eef2fb}
.game-media img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--pg-ease)}
.game-card:hover .game-media img{transform:scale(1.06)}
.game-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,14,30,0) 42%,rgba(8,14,30,.58));
}
.game-badge{
  position:absolute;z-index:2;left:14px;top:14px;padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:700;color:#fff;background:rgba(10,17,34,.62);
  border:1px solid rgba(255,255,255,.24);backdrop-filter:blur(6px);
}
.game-time{
  position:absolute;z-index:2;right:14px;bottom:14px;display:inline-flex;align-items:center;gap:6px;
  font-size:12px;color:#fff;background:rgba(10,17,34,.55);padding:5px 12px;
  border-radius:999px;backdrop-filter:blur(6px);
}
.game-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.game-title{font-size:17.5px;font-weight:700}
.game-desc{font-size:14.5px;color:var(--pg-muted);line-height:1.82}
.game-meta{margin-top:auto;display:flex;flex-wrap:wrap;gap:8px}
.chip{
  font-size:12.5px;color:var(--pg-ink-soft);background:#f2f5fc;
  border:1px solid var(--pg-line);border-radius:8px;padding:4px 10px;
}

/* ---------- 特色卡片 ---------- */
.feature-card{
  height:100%;padding:26px;border-radius:var(--pg-radius);background:#fff;
  border:1px solid var(--pg-line);box-shadow:var(--pg-shadow-sm);transition:.28s var(--pg-ease);
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--pg-shadow)}
.feature-icon{
  width:50px;height:50px;border-radius:14px;display:grid;place-items:center;
  font-size:19px;color:#fff;background:linear-gradient(135deg,#3a5bf5,#6f8bff);
  box-shadow:0 12px 22px rgba(58,91,245,.28);
}
.feature-icon.tint-teal{background:linear-gradient(135deg,#12b8a6,#4ad6c4);box-shadow:0 12px 22px rgba(18,184,166,.26)}
.feature-icon.tint-orange{background:linear-gradient(135deg,#ff7a45,#ffa477);box-shadow:0 12px 22px rgba(255,122,69,.26)}
.feature-icon.tint-violet{background:linear-gradient(135deg,#7b5bf5,#a98bff);box-shadow:0 12px 22px rgba(123,91,245,.26)}
.feature-card h3{margin-top:18px;font-size:18px}
.feature-card p{margin-top:10px;color:var(--pg-muted);font-size:14.5px;line-height:1.85}

/* ---------- 流程 ---------- */
.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step{
  position:relative;height:100%;padding:26px 22px;background:#fff;
  border:1px solid var(--pg-line);border-radius:var(--pg-radius);
  box-shadow:var(--pg-shadow-sm);transition:.28s var(--pg-ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--pg-shadow);border-color:rgba(58,91,245,.26)}
.step-no{font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--pg-brand)}
.step h3{margin-top:14px;font-size:17px}
.step p{margin-top:10px;font-size:14.5px;color:var(--pg-muted);line-height:1.85}

/* ---------- 玩家反馈 ---------- */
.voice-card{
  height:100%;padding:26px;border-radius:var(--pg-radius);background:#fff;
  border:1px solid var(--pg-line);box-shadow:var(--pg-shadow-sm);
  display:flex;flex-direction:column;gap:16px;transition:.28s var(--pg-ease);
}
.voice-card:hover{transform:translateY(-4px);box-shadow:var(--pg-shadow)}
.voice-mark{font-size:24px;color:rgba(58,91,245,.28)}
.voice-quote{font-size:15px;line-height:1.9;color:var(--pg-ink-soft)}
.voice-who{display:flex;align-items:center;gap:12px;margin-top:auto}
.voice-avatar{
  width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  font-weight:800;font-size:14px;color:#fff;background:linear-gradient(135deg,#12b8a6,#3a5bf5);
}
.voice-name{font-size:14.5px;font-weight:700}
.voice-role{font-size:12.5px;color:var(--pg-muted)}

/* ---------- FAQ ---------- */
.faq-box .accordion-item{
  border:1px solid var(--pg-line)!important;border-radius:var(--pg-radius-sm)!important;
  margin-bottom:14px;overflow:hidden;background:#fff;box-shadow:var(--pg-shadow-sm);
  transition:.26s var(--pg-ease);
}
.faq-box .accordion-item:hover{border-color:rgba(58,91,245,.3)!important}
.faq-box .accordion-button{
  font-weight:700;font-size:16px;color:var(--pg-ink);
  padding:20px 22px;background:#fff;box-shadow:none!important;border-radius:0!important;
}
.faq-box .accordion-button:not(.collapsed){color:var(--pg-brand);background:var(--pg-brand-soft)}
.faq-box .accordion-button::after{
  width:16px;height:16px;background-size:16px;
  filter:invert(28%) sepia(88%) saturate(2800%) hue-rotate(224deg) brightness(96%) contrast(96%);
}
.faq-box .accordion-body{padding:2px 22px 24px;color:var(--pg-muted);font-size:14.5px;line-height:1.9}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--pg-radius-lg);
  padding:54px 48px;color:#fff;
  background:linear-gradient(120deg,#101a33 0%,#22356e 52%,#3a5bf5 100%);
  box-shadow:var(--pg-shadow-lg);
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.22),transparent 68%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.5fr auto;gap:34px;align-items:center}
.cta-band h2{font-size:clamp(22px,2.8vw,32px);color:#fff}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.78);font-size:15px;line-height:1.9;max-width:660px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:#0b1226;color:rgba(255,255,255,.72);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand b{color:#fff;font-size:17px;letter-spacing:-.01em}
.footer-about{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6)}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px}
.footer-col ul li{margin-bottom:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.64)}
.footer-col a:hover{color:#fff}
.footer-contact li{
  display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.64);
  margin-bottom:12px;line-height:1.72;
}
.footer-contact i{margin-top:5px;color:#6f8bff;font-size:13px}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.48);line-height:1.8}
.footer-bottom .tips{max-width:780px;color:rgba(255,255,255,.56)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .topbar-search{flex:0 1 280px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .topbar{flex-wrap:wrap;gap:12px}
  .topbar-search{order:3;flex:1 1 100%;max-width:none;margin-left:0}
  .nav-toggle{display:grid;place-items:center;margin-left:auto}
  .channelbar{display:none}
  .channelbar.open{display:block}
  .channel-scroll{flex-direction:column;align-items:stretch;gap:4px;padding:12px 0}
  .channel-link{display:block;padding:11px 14px}
  .channel-link.active::after{display:none}
  .trend-chip{margin:10px 0 4px;align-self:flex-start}
  .hero-inner{padding-top:54px;padding-bottom:58px}
  .cta-inner{grid-template-columns:1fr}
  .cta-band{padding:40px 30px}
  .section{padding:60px 0}
}
@media (max-width:640px){
  .topbar-cta{display:none}
  .brand-name{font-size:16px}
  .brand-sub{font-size:11.5px}
  .hero-stat b{font-size:21px}
  .btn-pg{padding:13px 22px;font-size:14.5px}
  .section{padding:50px 0}
  .section-head{margin-bottom:30px}
}
@media (max-width:520px){
  .hero-stats{grid-template-columns:1fr}
  .step-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-band{padding:32px 22px}
  .tag{padding:9px 15px;font-size:13.5px}
}

/* roulang page: category2 */
:root{
  --bg:#060a14;
  --bg-soft:#0a1020;
  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.075);
  --line:rgba(255,255,255,.10);
  --line-2:rgba(255,255,255,.18);
  --text:#e9eefc;
  --muted:#95a3c2;
  --primary:#3f8cff;
  --primary-2:#65b6ff;
  --accent:#25e3d0;
  --warn:#ffb547;
  --pink:#ff79c6;
  --radius-xl:26px;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 22px 56px rgba(2,7,20,.6);
  --shadow-sm:0 10px 26px rgba(2,7,20,.42);
  --container:1200px;
  --ease:.28s cubic-bezier(.4,.2,.2,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(63,140,255,.20), transparent 62%),
    radial-gradient(900px 560px at 92% 4%, rgba(37,227,208,.12), transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary-2);text-decoration:none;transition:color var(--ease),opacity var(--ease);}
a:hover{color:#fff;}
h1,h2,h3,h4{margin:0 0 14px;line-height:1.32;font-weight:700;letter-spacing:.2px;}
p{margin:0 0 14px;color:var(--muted);}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:900;
  background:rgba(6,10,20,.88);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.topbar{display:flex;align-items:center;gap:18px;padding:14px 0;}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);flex:0 0 auto;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;border-radius:13px;
  display:grid;place-items:center;
  font-weight:800;font-size:15px;letter-spacing:.5px;color:#04101f;
  background:linear-gradient(135deg,var(--primary-2),var(--accent));
  box-shadow:0 10px 24px rgba(63,140,255,.35);
}
.brand-name{display:block;font-size:17px;font-weight:700;letter-spacing:.3px;}
.brand-sub{display:block;font-size:12px;color:var(--muted);line-height:1.4;}

.topbar-search{
  flex:1 1 auto;max-width:420px;margin-left:auto;
  display:flex;align-items:center;gap:8px;
  background:var(--panel);border:1px solid var(--line);
  border-radius:999px;padding:6px 6px 6px 16px;
  transition:border-color var(--ease),background var(--ease);
}
.topbar-search:focus-within{border-color:rgba(101,182,255,.55);background:var(--panel-2);}
.topbar-search i{color:var(--muted);font-size:13px;}
.topbar-search input{
  flex:1 1 auto;min-width:0;background:transparent;border:0;outline:none;
  color:var(--text);font-size:14px;padding:7px 0;
}
.topbar-search input::placeholder{color:#6f7f9e;}
.topbar-search button{
  border:0;border-radius:999px;padding:8px 18px;font-size:13px;font-weight:600;color:#04101f;
  background:linear-gradient(135deg,var(--primary-2),var(--accent));
  cursor:pointer;transition:transform var(--ease),box-shadow var(--ease);
}
.topbar-search button:hover{transform:translateY(-1px);box-shadow:0 8px 20px rgba(63,140,255,.4);}

.topbar-cta{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:999px;font-size:14px;font-weight:600;color:#fff;
  background:linear-gradient(135deg,#3f8cff,#6f5bff);
  border:1px solid rgba(255,255,255,.14);
  box-shadow:0 12px 26px rgba(63,140,255,.32);
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease);
}
.topbar-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(63,140,255,.45);filter:brightness(1.06);}

.nav-toggle{
  display:none;flex:0 0 auto;width:44px;height:44px;border-radius:12px;
  background:var(--panel);border:1px solid var(--line);color:var(--text);
  font-size:16px;cursor:pointer;transition:background var(--ease),border-color var(--ease);
}
.nav-toggle:hover{background:var(--panel-2);border-color:var(--line-2);}

.channelbar{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.01));
}
.channel-scroll{
  display:flex;align-items:center;gap:6px;
  padding:8px 0;overflow-x:auto;scrollbar-width:none;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.channel-link{
  flex:0 0 auto;padding:9px 16px;border-radius:999px;
  font-size:14px;color:var(--muted);white-space:nowrap;
  border:1px solid transparent;
  transition:color var(--ease),background var(--ease),border-color var(--ease);
}
.channel-link:hover{color:var(--text);background:var(--panel);}
.channel-link.active{
  color:#eaf2ff;background:rgba(63,140,255,.16);
  border-color:rgba(101,182,255,.42);
  box-shadow:inset 0 0 0 1px rgba(101,182,255,.10);
}
.trend-chip{
  flex:0 0 auto;margin-left:auto;display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:999px;font-size:12.5px;color:#ffd9a0;
  background:rgba(255,181,71,.10);border:1px solid rgba(255,181,71,.28);
  white-space:nowrap;
}

/* ---------- buttons ---------- */
.btn-soft,.btn-line,.btn-solid{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;font-size:14.5px;font-weight:600;
  cursor:pointer;border:1px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn-solid{color:#04101f;background:linear-gradient(135deg,var(--primary-2),var(--accent));box-shadow:0 14px 30px rgba(63,140,255,.34);}
.btn-solid:hover{color:#04101f;transform:translateY(-2px);box-shadow:0 20px 40px rgba(63,140,255,.46);}
.btn-line{color:var(--text);background:rgba(255,255,255,.03);border-color:var(--line-2);}
.btn-line:hover{color:#fff;background:rgba(255,255,255,.08);transform:translateY(-2px);}
.btn-soft{color:var(--text);background:var(--panel);border-color:var(--line);}
.btn-soft:hover{color:#fff;background:var(--panel-2);transform:translateY(-2px);}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:92px 0 76px;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(100deg,rgba(6,10,20,.94) 6%,rgba(6,10,20,.72) 48%,rgba(6,10,20,.42) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.9;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:150px;
  background:linear-gradient(180deg,transparent,rgba(6,10,20,.92));
}
.page-hero .container{position:relative;z-index:2;}

.crumb{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--muted);margin-bottom:22px;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary-2);}
.crumb span.dot{opacity:.45;}

.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 16px;border-radius:999px;margin-bottom:20px;
  font-size:13px;letter-spacing:.6px;color:#bfe0ff;
  background:rgba(63,140,255,.14);border:1px solid rgba(101,182,255,.34);
}
.eyebrow i{color:var(--accent);}

.page-hero h1{
  font-size:clamp(29px,4.2vw,50px);
  max-width:830px;letter-spacing:.4px;
}
.page-hero .lead{
  max-width:720px;font-size:16.5px;color:#b8c5e0;line-height:1.9;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 0;}

.hero-facts{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;
  margin-top:44px;
  background:rgba(10,16,32,.62);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:22px;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.fact{position:relative;padding-left:16px;}
.fact::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary-2),var(--accent));
}
.fact b{display:block;font-size:22px;font-weight:800;color:#fff;letter-spacing:.5px;}
.fact span{font-size:13px;color:var(--muted);}

/* ---------- sections ---------- */
.section{padding:84px 0;}
.section.tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .tag{
  display:inline-block;font-size:12.5px;letter-spacing:1.4px;color:var(--accent);
  text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{font-size:clamp(23px,2.7vw,34px);}
.section-head p{font-size:15.5px;margin-bottom:0;}

/* ---------- split feature ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.split-media{
  position:relative;border-radius:var(--radius-xl);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11;}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,.05),rgba(6,10,20,.55));
}
.split-media .badge-float{
  position:absolute;left:18px;bottom:18px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;font-size:13px;color:#eaf2ff;
  background:rgba(6,10,20,.72);border:1px solid var(--line-2);
  backdrop-filter:blur(8px);
}

.point-list li{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed rgba(255,255,255,.08);
}
.point-list li:last-child{border-bottom:0;}
.point-list i{
  flex:0 0 38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:rgba(63,140,255,.14);border:1px solid rgba(101,182,255,.28);
  color:var(--primary-2);font-size:14px;
}
.point-list h3{font-size:16px;margin-bottom:4px;color:#eef3ff;}
.point-list p{margin:0;font-size:14px;}

/* ---------- grid cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}

.card-tile{
  position:relative;display:flex;flex-direction:column;
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
  border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.card-tile:hover{transform:translateY(-6px);border-color:rgba(101,182,255,.4);box-shadow:var(--shadow);}
.card-tile .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;}
.card-tile .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card-tile:hover .thumb img{transform:scale(1.06);}
.card-tile .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,.05) 34%,rgba(6,10,20,.86));
}
.card-tile .thumb .chip{
  position:absolute;z-index:2;top:14px;left:14px;
  padding:5px 12px;border-radius:999px;font-size:12px;color:#cfe6ff;
  background:rgba(6,10,20,.7);border:1px solid rgba(101,182,255,.32);
  backdrop-filter:blur(6px);
}
.card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card-body h3{font-size:17px;margin:0;}
.card-body p{font-size:14px;margin:0;}
.card-foot{
  margin-top:auto;padding-top:14px;display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--primary-2);
}
.card-foot i{transition:transform var(--ease);}
.card-tile:hover .card-foot i{transform:translateX(4px);}

.meta-row{display:flex;flex-wrap:wrap;gap:8px;}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;color:#a9bcdd;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.pill.lv1{color:#9ff0e3;border-color:rgba(37,227,208,.32);background:rgba(37,227,208,.10);}
.pill.lv2{color:#ffd9a0;border-color:rgba(255,181,71,.32);background:rgba(255,181,71,.10);}
.pill.lv3{color:#ffc0e4;border-color:rgba(255,121,198,.32);background:rgba(255,121,198,.10);}

/* ---------- steps timeline ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.step{
  position:relative;padding:26px 22px;
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018));
  border:1px solid var(--line);border-radius:var(--radius-lg);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.step:hover{transform:translateY(-5px);border-color:rgba(37,227,208,.36);box-shadow:var(--shadow-sm);}
.step .no{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  font-weight:800;font-size:15px;color:#04101f;margin-bottom:16px;
  background:linear-gradient(135deg,var(--accent),var(--primary-2));
}
.step h3{font-size:16px;margin-bottom:8px;}
.step p{font-size:14px;margin:0;}

/* ---------- audience ---------- */
.audience{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;
}
.aud-card{
  padding:28px 24px;border-radius:var(--radius-lg);
  background:rgba(255,255,255,.032);
  border:1px solid var(--line);
  transition:background var(--ease),border-color var(--ease),transform var(--ease);
}
.aud-card:hover{background:rgba(255,255,255,.06);border-color:var(--line-2);transform:translateY(-4px);}
.aud-card i{
  font-size:18px;color:var(--accent);margin-bottom:14px;display:block;
}
.aud-card h3{font-size:16.5px;margin-bottom:8px;}
.aud-card p{font-size:14px;margin:0;}

/* ---------- stat band ---------- */
.stat-band{
  border-radius:var(--radius-xl);
  border:1px solid var(--line);
  background:
    linear-gradient(120deg,rgba(63,140,255,.16),rgba(37,227,208,.08)),
    rgba(10,16,32,.72);
  padding:44px 34px;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px;
}
.stat-band .st b{display:block;font-size:30px;font-weight:800;color:#fff;letter-spacing:.6px;}
.stat-band .st span{font-size:13.5px;color:#adbde0;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius);
  background:rgba(255,255,255,.032);
  overflow:hidden;transition:border-color var(--ease),background var(--ease);
}
.faq-item[open]{border-color:rgba(101,182,255,.38);background:rgba(63,140,255,.07);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:19px 24px;
  display:flex;align-items:center;gap:14px;
  font-size:15.5px;font-weight:600;color:#eaf1ff;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  margin-left:auto;font-size:12px;color:var(--muted);
  transition:transform var(--ease);
}
.faq-item[open] summary::after{transform:rotate(180deg);color:var(--accent);}
.faq-item summary:hover{color:#fff;}
.faq-body{padding:0 24px 22px;font-size:14.5px;color:var(--muted);line-height:1.85;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--radius-xl);
  border:1px solid rgba(101,182,255,.28);
  padding:56px 44px;
  background:
    linear-gradient(115deg,rgba(6,10,20,.9) 12%,rgba(6,10,20,.66) 100%),
    url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);max-width:640px;}
.cta-band p{max-width:620px;color:#bccbe8;font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:20px;padding:64px 0 30px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.028),rgba(255,255,255,0));
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand b{font-size:16.5px;}
.footer-about{font-size:14px;max-width:330px;color:#8b9ab9;}
.footer-col h4{font-size:14.5px;margin-bottom:16px;color:#dfe8fb;letter-spacing:.4px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:#8fa0c0;}
.footer-col a:hover{color:var(--primary-2);}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;color:#8fa0c0;line-height:1.7;}
.footer-contact i{color:var(--accent);margin-top:5px;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:#7c8aa8;
}
.footer-bottom .tips{max-width:640px;margin:0;color:#7c8aa8;font-size:13px;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .split{grid-template-columns:1fr;gap:32px;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .audience{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-band{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .hero-facts{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:860px){
  .topbar-search{display:none;}
  .nav-toggle{display:grid;place-items:center;margin-left:auto;}
  .topbar-cta{display:none;}
  .channel-scroll{
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    padding:10px 0 14px;
  }
  .channel-scroll.open{display:flex;}
  .channel-link{padding:12px 16px;border-radius:12px;}
  .trend-chip{margin:8px 0 0;justify-content:center;}
}
@media (max-width:768px){
  .section{padding:62px 0;}
  .page-hero{padding:64px 0 56px;}
  .grid-2,.grid-3,.audience,.steps{grid-template-columns:1fr;}
  .stat-band{padding:32px 24px;gap:20px;}
  .cta-band{padding:40px 24px;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .brand-sub{display:none;}
  .brand-name{font-size:15.5px;}
  .hero-facts{grid-template-columns:1fr;padding:18px;}
  .page-hero h1{font-size:26px;}
  .page-hero .lead{font-size:15px;}
  .btn-solid,.btn-line,.btn-soft{width:100%;padding:13px 18px;}
  .stat-band .st b{font-size:25px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category3 */
:root{
  --bg:#f5f6fb;
  --surface:#ffffff;
  --surface-2:#eef0fa;
  --ink:#141733;
  --ink-2:#2b2f55;
  --muted:#666e91;
  --line:#e0e3f2;
  --brand:#6d5cf6;
  --brand-dark:#4a37d6;
  --brand-soft:rgba(109,92,246,.12);
  --accent:#ff6b8a;
  --accent-soft:rgba(255,107,138,.14);
  --deep:#0d1030;
  --deep-2:#181d4a;
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:10px;
  --shadow-sm:0 4px 14px rgba(20,23,51,.06);
  --shadow-md:0 14px 34px rgba(20,23,51,.10);
  --shadow-lg:0 26px 60px rgba(20,23,51,.16);
  --space:clamp(56px,7vw,96px);
  --trans:.28s cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--trans),opacity var(--trans)}
a:hover{color:var(--brand)}
button,input{font:inherit}
:focus-visible{outline:3px solid rgba(109,92,246,.45);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4,h5{margin:0;font-weight:800;line-height:1.3;letter-spacing:.2px;color:var(--ink)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 18px rgba(20,23,51,.05);
}
.topbar{
  display:flex;align-items:center;gap:20px;
  padding:12px 0;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:44px;height:44px;border-radius:14px;flex:0 0 auto;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand) 0%,var(--accent) 100%);
  color:#fff;font-weight:900;font-size:16px;letter-spacing:.5px;
  box-shadow:0 8px 20px rgba(109,92,246,.38);
}
.brand-name{display:block;font-weight:800;font-size:17px;color:var(--ink);line-height:1.25}
.brand-sub{display:block;font-size:12px;color:var(--muted);letter-spacing:.6px}
.topbar-search{
  flex:1 1 auto;max-width:420px;
  display:flex;align-items:center;gap:8px;
  background:var(--surface-2);
  border:1px solid transparent;
  border-radius:999px;padding:6px 6px 6px 16px;
  transition:border-color var(--trans),box-shadow var(--trans),background var(--trans);
}
.topbar-search:focus-within{
  background:#fff;border-color:rgba(109,92,246,.5);
  box-shadow:0 0 0 4px var(--brand-soft);
}
.topbar-search i{color:var(--muted);font-size:14px}
.topbar-search input{
  flex:1 1 auto;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink);min-width:0;padding:6px 0;
}
.topbar-search input::placeholder{color:#9aa1c0}
.topbar-search button{
  border:0;border-radius:999px;padding:8px 18px;cursor:pointer;
  background:var(--deep);color:#fff;font-size:13px;font-weight:700;
  transition:background var(--trans),transform var(--trans);
}
.topbar-search button:hover{background:var(--brand);transform:translateY(-1px)}
.topbar-cta{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:999px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;font-size:14px;font-weight:700;
  box-shadow:0 10px 24px rgba(109,92,246,.32);
  transition:transform var(--trans),box-shadow var(--trans);
}
.topbar-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(109,92,246,.42)}
.nav-toggle{
  display:none;flex:0 0 auto;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  cursor:pointer;font-size:17px;
}
.channelbar{border-top:1px solid var(--line);background:rgba(255,255,255,.7)}
.channel-scroll{
  display:flex;align-items:center;gap:6px;
  padding:6px 0;overflow-x:auto;scrollbar-width:none;
}
.channel-scroll::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;flex:0 0 auto;
  padding:10px 15px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--ink-2);white-space:nowrap;
  transition:background var(--trans),color var(--trans);
}
.channel-link:hover{background:var(--brand-soft);color:var(--brand-dark)}
.channel-link.active{background:var(--deep);color:#fff}
.channel-link.active:hover{background:var(--deep-2);color:#fff}
.trend-chip{
  margin-left:auto;flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;font-size:12.5px;font-weight:600;
  color:#8a4a00;background:linear-gradient(135deg,#fff2d6,#ffe0e8);
  border:1px solid #ffe1b0;white-space:nowrap;
}
.trend-chip i{color:#ff8a3d}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background-image:linear-gradient(115deg,rgba(9,11,38,.94) 0%,rgba(22,26,78,.82) 46%,rgba(60,40,120,.72) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:auto -10% -60% -10%;height:70%;
  background:radial-gradient(closest-side,rgba(109,92,246,.42),transparent 70%);
  pointer-events:none;
}
.page-hero-inner{position:relative;z-index:2;padding:clamp(56px,8vw,104px) 0 clamp(48px,6vw,84px)}
.crumbs{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.66);margin-bottom:22px;flex-wrap:wrap}
.crumbs a:hover{color:#fff}
.crumbs span{color:rgba(255,255,255,.4)}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 16px;border-radius:999px;font-size:13px;font-weight:700;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);
  color:#e8e6ff;margin-bottom:20px;
}
.hero-badge i{color:var(--accent)}
.page-hero h1{
  color:#fff;font-size:clamp(30px,4.4vw,52px);letter-spacing:.5px;margin-bottom:18px;
  text-shadow:0 8px 30px rgba(0,0,0,.3);
}
.page-hero h1 em{font-style:normal;background:linear-gradient(120deg,#ffd9e2,#a99bff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{max-width:720px;font-size:clamp(15px,1.6vw,17px);color:rgba(255,255,255,.82);margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;
  padding:14px 28px;border-radius:999px;font-weight:700;font-size:15px;
  transition:transform var(--trans),box-shadow var(--trans),background var(--trans),color var(--trans);
}
.btn-main{background:linear-gradient(135deg,var(--accent),#ff9466);color:#fff;box-shadow:0 14px 32px rgba(255,107,138,.4)}
.btn-main:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 40px rgba(255,107,138,.5)}
.btn-ghost{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.32);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.2);color:#fff;transform:translateY(-2px)}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;
  padding:20px;border-radius:var(--radius-lg);
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(10px);
}
.hero-stats .stat b{display:block;font-size:clamp(20px,2.4vw,28px);color:#fff;letter-spacing:.5px}
.hero-stats .stat span{font-size:13px;color:rgba(255,255,255,.68)}

/* ---------- sections ---------- */
.section{padding:var(--space) 0}
.section.alt{background:var(--surface)}
.section.deep{background:linear-gradient(160deg,var(--deep) 0%,#1b2054 100%);color:#fff}
.section.deep h2,.section.deep h3{color:#fff}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:800;letter-spacing:1.6px;text-transform:uppercase;
  color:var(--brand-dark);margin-bottom:14px;
}
.eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand),var(--accent))}
.section.deep .eyebrow{color:#b9b2ff}
.section-head h2{font-size:clamp(24px,3.2vw,36px);margin-bottom:14px}
.section-head p{color:var(--muted);font-size:15.5px}
.section.deep .section-head p{color:rgba(255,255,255,.72)}

/* ---------- cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform var(--trans),box-shadow var(--trans),border-color var(--trans);
  height:100%;display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:rgba(109,92,246,.32)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--surface-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card-media img{transform:scale(1.06)}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(13,16,48,0) 40%,rgba(13,16,48,.62) 100%);
}
.card-tag{
  position:absolute;left:14px;top:14px;z-index:2;
  padding:6px 13px;border-radius:999px;font-size:12px;font-weight:700;
  background:rgba(255,255,255,.9);color:var(--brand-dark);
  backdrop-filter:blur(6px);
}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.card-body h3{font-size:18.5px}
.card-body p{color:var(--muted);font-size:14.5px}
.card-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:var(--brand-soft);color:var(--brand-dark);
}
.chip.pink{background:var(--accent-soft);color:#c72b53}
.chip.grey{background:var(--surface-2);color:var(--muted)}

/* ---------- feature list ---------- */
.feature{
  display:flex;gap:18px;padding:24px;border-radius:var(--radius-md);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-sm);
  transition:transform var(--trans),box-shadow var(--trans);
  height:100%;
}
.feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.feature-icon{
  flex:0 0 auto;width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
  font-size:20px;color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  box-shadow:0 10px 22px rgba(109,92,246,.3);
}
.feature-icon.alt{background:linear-gradient(135deg,var(--accent),#ff9466);box-shadow:0 10px 22px rgba(255,107,138,.3)}
.feature h3{font-size:17px;margin-bottom:8px}
.feature p{color:var(--muted);font-size:14.5px}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.split-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.split-media .float-card{
  position:absolute;left:20px;bottom:20px;right:20px;
  padding:16px 20px;border-radius:var(--radius-md);
  background:rgba(255,255,255,.92);backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.7);
  display:flex;align-items:center;gap:14px;
}
.split-media .float-card i{color:var(--brand);font-size:20px}
.split-media .float-card b{display:block;font-size:14.5px}
.split-media .float-card span{font-size:12.5px;color:var(--muted)}
.check-list{display:grid;gap:14px;margin-top:24px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink-2)}
.check-list i{color:var(--brand);margin-top:5px;font-size:15px}
.section.deep .check-list li{color:rgba(255,255,255,.86)}
.section.deep .check-list i{color:#a99bff}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;counter-reset:step}
.step{
  position:relative;padding:28px 24px;border-radius:var(--radius-md);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-sm);
  transition:transform var(--trans),box-shadow var(--trans);
}
.step:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.step .num{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  font-weight:800;color:#fff;margin-bottom:16px;
  background:linear-gradient(135deg,var(--deep),var(--brand));
}
.step h3{font-size:16.5px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14px}
.step::after{
  content:"\f061";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:-16px;top:50%;transform:translateY(-50%);
  color:#c7cbe6;font-size:14px;
}
.step:last-child::after{display:none}

/* ---------- quotes ---------- */
.quote{
  padding:26px;border-radius:var(--radius-md);height:100%;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  transition:transform var(--trans),background var(--trans);
}
.quote:hover{transform:translateY(-4px);background:rgba(255,255,255,.1)}
.quote .stars{color:#ffc65c;font-size:13px;margin-bottom:14px;letter-spacing:2px}
.quote p{color:rgba(255,255,255,.86);font-size:15px}
.quote .who{display:flex;align-items:center;gap:12px;margin-top:20px}
.quote .who .avatar{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;font-weight:800;font-size:14px;
}
.quote .who b{display:block;font-size:14px;color:#fff}
.quote .who span{font-size:12.5px;color:rgba(255,255,255,.6)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:border-color var(--trans),box-shadow var(--trans);
}
.faq-item[open]{border-color:rgba(109,92,246,.4);box-shadow:var(--shadow-md)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;
  display:flex;align-items:center;gap:16px;
  font-weight:700;font-size:16px;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\2b";margin-left:auto;color:var(--brand);font-size:20px;font-weight:700;
  transition:transform var(--trans);
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .answer{padding:0 24px 22px;color:var(--muted);font-size:14.8px}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;border-radius:28px;padding:clamp(34px,5vw,60px);
  background-image:linear-gradient(120deg,rgba(13,16,48,.95),rgba(74,55,214,.86)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;color:#fff;
  box-shadow:var(--shadow-lg);
}
.cta-panel h2{color:#fff;font-size:clamp(24px,3vw,34px);margin-bottom:14px}
.cta-panel p{color:rgba(255,255,255,.82);max-width:640px;margin-bottom:26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.cta-badges span{
  padding:7px 14px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);color:#e9e7ff;
}

/* ---------- footer ---------- */
.site-footer{background:var(--deep);color:rgba(255,255,255,.74);padding:clamp(48px,6vw,72px) 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:38px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand b{color:#fff;font-size:16.5px}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68)}
.footer-col a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;color:rgba(255,255,255,.62);line-height:1.7}
.footer-contact i{color:var(--accent);margin-top:5px}
.footer-bottom{
  margin-top:42px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom .tips{max-width:720px;line-height:1.8}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step::after{display:none}
  .split{grid-template-columns:1fr;gap:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:768px){
  .topbar{flex-wrap:wrap;gap:12px}
  .topbar-search{order:3;flex:1 1 100%;max-width:none}
  .topbar-cta{display:none}
  .nav-toggle{display:grid;place-items:center;margin-left:auto}
  .channelbar{display:none}
  .site-header.mobile-open .channelbar{display:block}
  .site-header.mobile-open .channel-scroll{
    flex-direction:column;align-items:stretch;gap:4px;padding:10px 0 16px;overflow:visible;
  }
  .channel-link{border-radius:12px;padding:12px 14px}
  .trend-chip{margin:8px 0 0;justify-content:center}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .section-head{margin-bottom:32px}
  .section{padding:56px 0}
}
@media (max-width:520px){
  .grid-4,.steps,.hero-stats,.footer-grid{grid-template-columns:1fr}
  .card-body,.feature,.step{padding:20px}
  .brand-name{font-size:15.5px}
  .brand-sub{font-size:11px}
  .page-hero h1{font-size:28px}
  .btn-main,.btn-ghost{width:100%;justify-content:center}
  .faq-item summary{padding:17px 18px;font-size:15px}
  .faq-item .answer{padding:0 18px 18px}
}

/* roulang page: category4 */
:root{
  --bg:#080c1a;
  --bg-soft:#0d1327;
  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.18);
  --text:#eef2ff;
  --muted:#9aa6c6;
  --primary:#6f5cf6;
  --primary-2:#a78bfa;
  --accent:#2ee6c8;
  --pink:#ff6aa8;
  --radius-lg:22px;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 18px 45px rgba(4,8,22,.55);
  --shadow-sm:0 8px 22px rgba(4,8,22,.4);
  --container:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1000px 620px at 12% -8%, rgba(111,92,246,.28), transparent 62%),
    radial-gradient(880px 560px at 92% 4%, rgba(46,230,200,.16), transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--accent)}
button,input{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;font-weight:800;letter-spacing:.2px;line-height:1.3}
p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.container{max-width:var(--container);padding-left:20px;padding-right:20px;margin:0 auto;width:100%}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(8,12,26,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s var(--ease),background .3s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 12px 34px rgba(3,6,18,.6);background:rgba(8,12,26,.94)}
.topbar{display:flex;align-items:center;gap:18px;padding:12px 0}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%);
  color:#050a18;font-weight:900;font-size:15px;letter-spacing:.5px;
  box-shadow:0 10px 24px rgba(111,92,246,.42);
}
.brand-name{display:block;font-size:17px;font-weight:800;color:var(--text);line-height:1.25}
.brand-sub{display:block;font-size:12px;color:var(--muted);letter-spacing:.4px}
.topbar-search{
  display:flex;align-items:center;gap:10px;flex:1;max-width:430px;margin-left:auto;
  background:var(--panel);border:1px solid var(--line);
  border-radius:999px;padding:6px 6px 6px 16px;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.topbar-search:focus-within{border-color:rgba(46,230,200,.55);background:rgba(255,255,255,.075)}
.topbar-search i{color:var(--muted);font-size:13px}
.topbar-search input{
  flex:1;background:transparent;border:0;outline:none;color:var(--text);font-size:14px;
}
.topbar-search input::placeholder{color:#6f7ba0}
.topbar-search button{
  border:0;border-radius:999px;padding:8px 16px;font-size:13px;font-weight:700;
  color:#060b19;background:linear-gradient(135deg,var(--accent),#7ef0dc);
  cursor:pointer;transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.topbar-search button:hover{transform:translateY(-1px);box-shadow:0 8px 20px rgba(46,230,200,.35)}
.topbar-cta{
  display:inline-flex;align-items:center;gap:8px;flex-shrink:0;
  padding:10px 18px;border-radius:999px;font-size:14px;font-weight:700;
  background:linear-gradient(135deg,var(--primary),var(--pink));
  color:#fff;box-shadow:0 10px 26px rgba(111,92,246,.4);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.topbar-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,106,168,.4)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line-strong);background:var(--panel);
  color:var(--text);font-size:17px;cursor:pointer;
}
.channelbar{border-top:1px solid var(--line);background:rgba(9,14,30,.55)}
.channel-scroll{display:flex;align-items:center;gap:6px;padding:9px 0;overflow-x:auto;scrollbar-width:none}
.channel-scroll::-webkit-scrollbar{display:none}
.channel-link{
  padding:8px 15px;border-radius:999px;font-size:14px;color:var(--muted);
  white-space:nowrap;border:1px solid transparent;
  transition:all .25s var(--ease);
}
.channel-link:hover{color:var(--text);background:var(--panel-2);border-color:var(--line)}
.channel-link.active{
  color:#fff;font-weight:700;
  background:linear-gradient(135deg,rgba(111,92,246,.95),rgba(46,230,200,.85));
  box-shadow:0 8px 20px rgba(111,92,246,.36);
}
.trend-chip{
  margin-left:auto;display:inline-flex;align-items:center;gap:7px;white-space:nowrap;
  font-size:13px;color:#ffd9a8;background:rgba(255,157,74,.12);
  border:1px solid rgba(255,157,74,.28);border-radius:999px;padding:7px 14px;
}
.trend-chip i{color:#ff9d4a}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:96px 0 78px;
  background-image:
    linear-gradient(105deg, rgba(8,12,26,.96) 0%, rgba(8,12,26,.86) 42%, rgba(8,12,26,.52) 100%),
    url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:140px;
  background:linear-gradient(180deg,rgba(8,12,26,0) 0%,var(--bg) 92%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:820px}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:700;letter-spacing:1.4px;
  color:var(--accent);text-transform:uppercase;
  background:rgba(46,230,200,.1);border:1px solid rgba(46,230,200,.3);
  padding:7px 15px;border-radius:999px;margin-bottom:22px;
}
.page-hero h1{
  font-size:clamp(30px,4.6vw,52px);line-height:1.2;margin-bottom:20px;
  background:linear-gradient(120deg,#ffffff 20%,#b9c4f0 70%,#8f9dd6 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-hero .lead{font-size:17px;color:#c3cbe6;max-width:660px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.btn-pg,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;font-size:15px;font-weight:700;
  cursor:pointer;border:1px solid transparent;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease);
}
.btn-pg{background:linear-gradient(135deg,var(--primary),var(--pink));color:#fff;box-shadow:0 14px 32px rgba(111,92,246,.42)}
.btn-pg:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 38px rgba(255,106,168,.42)}
.btn-ghost{background:rgba(255,255,255,.05);border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.11);color:#fff;transform:translateY(-2px)}
.hero-stats{
  position:relative;z-index:2;margin-top:52px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
}
.stat-card{
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  border-radius:var(--radius);padding:20px 20px 18px;
  backdrop-filter:blur(8px);
  transition:transform .3s var(--ease),border-color .3s var(--ease),background .3s var(--ease);
}
.stat-card:hover{transform:translateY(-4px);border-color:rgba(111,92,246,.5);background:rgba(255,255,255,.08)}
.stat-num{font-size:26px;font-weight:900;color:var(--accent);letter-spacing:.5px}
.stat-label{font-size:13px;color:var(--muted);margin-top:4px}

/* ---------- sections ---------- */
.section{padding:78px 0}
.section-alt{background:linear-gradient(180deg,rgba(13,19,39,.65),rgba(8,12,26,0));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.kicker{
  display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:1.6px;
  color:var(--primary-2);margin-bottom:12px;text-transform:uppercase;
}
.section-title{font-size:clamp(24px,3vw,34px);margin-bottom:14px}
.section-desc{color:var(--muted);font-size:15.5px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}

.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:transform .32s var(--ease),border-color .32s var(--ease),box-shadow .32s var(--ease);
}
.card:hover{transform:translateY(-6px);border-color:rgba(111,92,246,.52);box-shadow:var(--shadow)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0b1124}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.card:hover .card-media img{transform:scale(1.07)}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,12,26,0) 35%,rgba(8,12,26,.78) 100%);
}
.card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px}
.card-body p{font-size:14.5px;color:var(--muted)}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px}
.tag{
  font-size:12.5px;color:#c8d2f2;background:rgba(255,255,255,.06);
  border:1px solid var(--line);border-radius:999px;padding:5px 12px;
}
.tag-accent{color:#052018;background:linear-gradient(135deg,var(--accent),#89f2df);border-color:transparent;font-weight:700}

/* topics */
.topics-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.topic-item{
  display:flex;gap:18px;padding:22px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  transition:transform .3s var(--ease),border-color .3s var(--ease),background .3s var(--ease);
}
.topic-item:hover{transform:translateY(-4px);border-color:rgba(46,230,200,.42);background:rgba(255,255,255,.075)}
.topic-date{
  flex-shrink:0;width:62px;height:62px;border-radius:14px;
  display:grid;place-items:center;font-weight:800;font-size:13px;color:var(--accent);
  background:rgba(46,230,200,.1);border:1px solid rgba(46,230,200,.26);line-height:1.25;text-align:center;
}
.topic-main h4{font-size:16.5px;margin-bottom:6px}
.topic-main p{font-size:14px;color:var(--muted)}
.topic-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}

/* quotes */
.quote-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px;height:100%;position:relative;
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.quote-card:hover{transform:translateY(-5px);border-color:rgba(255,106,168,.42)}
.quote-card i.fa-quote-left{color:rgba(255,106,168,.55);font-size:22px;margin-bottom:14px;display:block}
.quote-card p{font-size:15px;color:#cdd5ef;min-height:96px}
.quote-author{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px dashed var(--line-strong)}
.avatar{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--accent));color:#060b19;font-weight:900;font-size:14px;
}
.quote-author b{display:block;font-size:14.5px}
.quote-author span{font-size:12.5px;color:var(--muted)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px;position:relative;height:100%;
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.step:hover{transform:translateY(-5px);border-color:rgba(111,92,246,.5)}
.step-num{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  font-weight:900;font-size:15px;margin-bottom:16px;
  background:rgba(111,92,246,.16);border:1px solid rgba(111,92,246,.42);color:#c9bdff;
}
.step h4{font-size:17px;margin-bottom:9px}
.step p{font-size:14px;color:var(--muted)}

/* rules */
.rules-wrap{
  display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center;
  background:linear-gradient(120deg,rgba(111,92,246,.14),rgba(46,230,200,.08));
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);padding:38px;
}
.rules-list li{
  display:flex;gap:13px;padding:11px 0;font-size:15px;color:#d3daf3;
  border-bottom:1px dashed var(--line);
}
.rules-list li:last-child{border-bottom:0}
.rules-list i{color:var(--accent);margin-top:5px;font-size:14px}
.rules-media{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line-strong);box-shadow:var(--shadow)}
.rules-media img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* faq */
.faq-list{display:grid;gap:14px;max-width:920px;margin:0 auto}
.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:0 22px;transition:border-color .3s var(--ease),background .3s var(--ease);
}
.faq-item[open]{border-color:rgba(46,230,200,.4);background:rgba(255,255,255,.07)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 0;font-size:16.5px;font-weight:700;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--accent);font-size:14px;transition:transform .3s var(--ease);flex-shrink:0}
.faq-item[open] summary i{transform:rotate(180deg)}
.faq-item p{padding:0 0 22px;font-size:14.8px;color:var(--muted)}

/* cta */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid var(--line-strong);
  background-image:
    linear-gradient(115deg,rgba(8,12,26,.94),rgba(8,12,26,.7)),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  padding:56px 46px;display:flex;flex-wrap:wrap;align-items:center;gap:28px;justify-content:space-between;
}
.cta-band h3{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px}
.cta-band p{color:#c2cae5;max-width:600px;font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* footer */
.site-footer{
  margin-top:20px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(13,19,39,.9),rgba(5,8,18,.98));
  padding:62px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand b{font-size:17px}
.footer-about{font-size:14px;color:var(--muted);max-width:340px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:#fff}
.footer-col ul li{margin-bottom:11px}
.footer-col ul li a{font-size:14px;color:var(--muted)}
.footer-col ul li a:hover{color:var(--accent)}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--muted);margin-bottom:12px}
.footer-contact i{color:var(--primary-2);margin-top:5px}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
}
.footer-bottom p{font-size:13px;color:#7f8ab0}
.footer-bottom .tips{max-width:720px}

/* responsive */
@media (max-width:1024px){
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .rules-wrap{grid-template-columns:1fr;padding:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:860px){
  .topbar-search{display:none}
  .nav-toggle{display:inline-grid;place-items:center;margin-left:auto}
  .topbar-cta{display:none}
  .channelbar{display:none}
  .channelbar.open{display:block}
  .channel-scroll{flex-direction:column;align-items:stretch;overflow:visible;padding:14px 0;gap:4px}
  .channel-link{padding:12px 16px;border-radius:12px;font-size:15px}
  .trend-chip{margin:8px 0 0;justify-content:center}
}
@media (max-width:768px){
  .section{padding:58px 0}
  .page-hero{padding:70px 0 56px}
  .page-hero .lead{font-size:15.8px}
  .topics-grid{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .cta-band{padding:38px 24px}
  .quote-card p{min-height:auto}
}
@media (max-width:520px){
  .grid-3{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .brand-name{font-size:15.5px}
  .brand-sub{font-size:11px}
  .brand-mark{width:38px;height:38px;font-size:13px}
  .btn-pg,.btn-ghost{width:100%}
  .topic-item{flex-direction:column;gap:14px}
  .topic-date{width:auto;height:auto;padding:7px 14px;border-radius:999px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}