/* roulang page: index */
:root{
  --bg-0:#0B0C0F;
  --bg-1:#121317;
  --bg-2:#191B20;
  --line:rgba(255,255,255,.08);
  --brand:#F2622E;
  --gold:#F0B357;
  --mint:#5AD1C8;
  --t-1:#F4F5F7;
  --t-2:#A7ADB8;
  --t-3:#6F7681;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-poster:20px;
  --sh-1:0 1px 0 rgba(255,255,255,.04) inset,0 12px 32px rgba(0,0,0,.45);
  --sh-2:0 18px 44px rgba(0,0,0,.55);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --sp-section:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{margin:0;padding:0;scroll-behavior:smooth}
body{
  margin:0;padding:0;
  background:var(--bg-0);
  color:var(--t-1);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;border:0}
a{color:var(--gold);text-decoration:none;transition:color .2s ease}
a:hover{color:#fff}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4{font-family:var(--serif);margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
::selection{background:rgba(242,98,46,.35);color:#fff}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1200px){.container{padding:0 48px}}
@media (min-width:1440px){.container{max-width:1360px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  height:64px;
  display:flex;align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .3s ease,backdrop-filter .3s ease,border-color .3s ease;
}
.site-header.is-scrolled{
  background:rgba(11,12,15,.72);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;width:100%}
.brand{display:flex;align-items:center;gap:10px;color:var(--t-1);flex:0 0 auto}
.brand:hover{color:var(--t-1)}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;
  background:linear-gradient(140deg,rgba(242,98,46,.9),rgba(240,179,87,.75));
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(242,98,46,.28);
}
.brand-mark svg{width:19px;height:19px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-family:var(--sans);font-size:16px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.brand-name em{font-style:normal;color:var(--t-1)}
.brand-name b{font-weight:700;color:var(--brand)}
.brand-note{font-size:11px;color:var(--t-3);letter-spacing:.06em;margin-top:1px}
.nav-main{flex:1 1 auto;display:none}
@media (min-width:1024px){.nav-main{display:block}}
.nav-main ul{display:flex;align-items:center;gap:28px}
.nav-main a{
  position:relative;display:inline-block;
  font-size:14px;color:var(--t-2);padding:6px 0;
}
.nav-main a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--gold);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-main a:hover{color:var(--t-1)}
.nav-main a:hover::after,.nav-main a.is-active::after{transform:scaleX(1)}
.nav-main a.is-active{color:var(--t-1)}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.cmd-search{
  display:none;align-items:center;gap:8px;
  height:40px;padding:0 10px 0 12px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  border-radius:12px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
@media (min-width:1100px){.cmd-search{display:flex;width:280px}}
.cmd-search i{color:var(--t-3);font-size:13px}
.cmd-search input{
  flex:1 1 auto;min-width:0;height:100%;background:none;border:0;outline:none;
  color:var(--t-1);font-size:13px;
}
.cmd-search input::placeholder{color:var(--t-3)}
.cmd-search kbd{
  font-family:var(--sans);font-size:11px;color:var(--t-3);
  border:1px solid var(--line);border-radius:6px;padding:1px 6px;background:rgba(255,255,255,.04);
}
.cmd-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(242,98,46,.16)}
.icon-btn{
  width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  display:none;align-items:center;justify-content:center;
  color:var(--t-2);transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
@media (min-width:768px){.icon-btn{display:flex}}
.icon-btn:hover{border-color:var(--gold);color:var(--gold);transform:translateY(-1px)}
.nav-toggle{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--t-1);
}
@media (min-width:1024px){.nav-toggle{display:none}}
.mobile-panel{
  position:absolute;left:0;right:0;top:100%;
  background:rgba(11,12,15,.97);
  border-bottom:1px solid var(--line);
  padding:0 20px;
  max-height:0;overflow:hidden;
  transition:max-height .3s ease,padding .3s ease;
}
.mobile-panel.is-open{max-height:420px;padding:16px 20px 22px}
.mobile-panel ul{display:flex;flex-direction:column;gap:2px;margin-bottom:14px}
.mobile-panel a{display:block;padding:12px 4px;font-size:15px;color:var(--t-2);border-bottom:1px solid var(--line)}
.mobile-panel a:hover,.mobile-panel a.is-active{color:var(--t-1)}
.mobile-panel .cmd-search{display:flex;width:100%}

/* ---------- Buttons ---------- */
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;overflow:hidden;
  transition:transform .2s ease,filter .2s ease,border-color .2s ease,background .2s ease,color .2s ease;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--brand);color:#0B0C0F}
.btn-primary::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.38),transparent);
  transform:translateX(-130%);transition:transform .4s ease;
}
.btn-primary:hover{color:#0B0C0F;filter:brightness(1.08);transform:translateY(-1px)}
.btn-primary:hover::before{transform:translateX(130%)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--t-1)}
.btn-ghost:hover{border-color:var(--gold);background:rgba(240,179,87,.08);color:#fff;transform:translateY(-1px)}
.text-link{font-size:14px;color:var(--t-2);display:inline-flex;align-items:center;gap:6px}
.text-link::after{content:"";width:0;height:1px;background:var(--gold);transition:width .25s ease}
.text-link:hover{color:var(--gold)}
.text-link:hover::after{width:16px}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;line-height:1.6;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--t-2);
}
.badge-gold{border-color:rgba(240,179,87,.42);background:rgba(240,179,87,.12);color:var(--gold)}
.badge-mint{border-color:rgba(90,209,200,.42);background:rgba(90,209,200,.12);color:var(--mint)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:104px 0 80px;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:
    radial-gradient(110% 85% at 84% 14%,rgba(242,98,46,.24) 0%,rgba(242,98,46,0) 56%),
    linear-gradient(180deg,rgba(11,12,15,.58) 0%,rgba(11,12,15,.88) 64%,var(--bg-0) 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:2;opacity:.05;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(/%23n)'/%3E%3C/svg%3E");
}
.hero-inner{position:relative;z-index:3}
.hero-layout{display:grid;grid-template-columns:1fr;gap:40px;align-items:center}
@media (min-width:1024px){.hero-layout{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px}}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.hero-title{
  font-size:clamp(34px,6vw,64px);
  line-height:1.06;letter-spacing:-.02em;font-weight:700;
  margin:0 0 18px;
  animation:fadeUp .5s ease-out both;
}
.hero-sub{
  font-size:clamp(15px,1.6vw,18px);color:var(--t-2);max-width:44ch;
  margin-bottom:32px;animation:fadeUp .5s ease-out .06s both;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;animation:fadeUp .5s ease-out .12s both}
.hero-stats{display:flex;flex-wrap:wrap;gap:0;animation:fadeUp .5s ease-out .18s both}
.hero-stats li{padding:0 22px;border-right:1px solid var(--line)}
.hero-stats li:first-child{padding-left:0}
.hero-stats li:last-child{border-right:0}
.hero-stats strong{display:block;font-family:var(--serif);font-size:22px;color:var(--gold);line-height:1.3}
.hero-stats span{font-size:13px;color:var(--t-3)}
.hero-poster-wrap{display:none;justify-content:center}
@media (min-width:1024px){.hero-poster-wrap{display:flex}}
.hero-poster{
  width:100%;max-width:340px;aspect-ratio:2/3;overflow:hidden;
  border-radius:var(--r-poster);
  border:1px solid rgba(240,179,87,.35);
  box-shadow:var(--sh-2);
  transform:rotate(3deg);
  transition:transform .4s ease;
}
.hero-poster img{width:100%;height:100%;object-fit:cover}
.hero-poster:hover{transform:rotate(0deg) translateY(-4px)}
.hero-scroll{
  position:absolute;left:50%;bottom:26px;z-index:3;transform:translateX(-50%);
  width:1px;height:52px;background:var(--line);overflow:hidden;
}
.hero-scroll span{
  position:absolute;top:0;left:0;width:1px;height:18px;background:var(--gold);
  animation:scrollLine 2.4s ease-in-out infinite;
}
@keyframes scrollLine{0%{transform:translateY(-20px)}100%{transform:translateY(54px)}}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}

/* ---------- Sections ---------- */
.section{padding:var(--sp-section) 0}
@media (max-width:767px){.section{padding:56px 0}}
.section-alt{background:var(--bg-1)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:34px;
}
.section-head h2{font-size:clamp(22px,3vw,32px);line-height:1.2;margin:0}
.section-head h2::after{content:"";display:block;width:40px;height:2px;background:var(--gold);margin-top:14px}
.section-head .head-note{font-size:13px;color:var(--t-3);margin-top:6px;display:block}

/* ---------- Rail ---------- */
.rail-wrap{position:relative}
.rail-wrap::before,.rail-wrap::after{
  content:"";position:absolute;top:0;bottom:24px;width:56px;z-index:2;pointer-events:none;
}
.rail-wrap::before{left:0;background:linear-gradient(90deg,var(--bg-0),rgba(11,12,15,0))}
.rail-wrap::after{right:0;background:linear-gradient(270deg,var(--bg-0),rgba(11,12,15,0))}
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 2px 24px;scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none}
.rail-card{flex:0 0 180px;scroll-snap-align:start;color:var(--t-1)}
@media (min-width:768px){.rail-card{flex:0 0 200px}}
.rail-thumb{
  aspect-ratio:2/3;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-2);box-shadow:var(--sh-1);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.rail-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.rail-card:hover .rail-thumb{transform:translateY(-4px);border-color:rgba(240,179,87,.5);box-shadow:var(--sh-2)}
.rail-card:hover .rail-thumb img{transform:scale(1.04)}
.rail-card h3{font-size:15px;line-height:1.35;margin:12px 0 4px;color:var(--t-1);font-family:var(--sans);font-weight:600}
.rail-card p{font-size:12.5px;color:var(--t-3)}
.rail-btn{
  position:absolute;top:38%;z-index:3;
  width:40px;height:40px;border-radius:50%;
  background:rgba(11,12,15,.82);border:1px solid var(--line);
  color:var(--t-1);display:none;align-items:center;justify-content:center;
  transition:transform .2s ease,border-color .2s ease,background .2s ease;
}
@media (min-width:768px){.rail-btn{display:flex}}
.rail-btn:hover{transform:scale(1.06);border-color:var(--gold);background:rgba(25,27,32,.95)}
.rail-prev{left:-8px}
.rail-next{right:-8px}

/* ---------- Rank list ---------- */
.rank-grid{display:grid;grid-template-columns:1fr;gap:26px 40px}
@media (min-width:900px){.rank-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.rank-item{display:flex;gap:18px;align-items:center;padding-bottom:22px;border-bottom:1px solid var(--line)}
.rank-no{
  font-family:var(--serif);font-size:52px;line-height:1;
  color:rgba(240,179,87,.35);min-width:62px;letter-spacing:-.03em;
}
.rank-thumb{
  flex:0 0 104px;aspect-ratio:16/9;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-2);
}
.rank-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.rank-body h3{font-size:17px;line-height:1.35;margin:0 0 6px}
.rank-body h3 a{color:var(--t-1)}
.rank-body h3 a:hover{color:var(--gold)}
.rank-body p{font-size:13.5px;color:var(--t-2);line-height:1.7;margin-bottom:10px}
.rank-item:hover .rank-thumb img{transform:scale(1.05)}
.rank-item:hover .rank-thumb{border-color:rgba(240,179,87,.45)}

/* ---------- News cards ---------- */
.news-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:640px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.news-card{
  display:flex;flex-direction:column;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(240,179,87,.42);box-shadow:var(--sh-2)}
.news-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--bg-1)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.news-title{font-family:var(--sans);font-size:17px;font-weight:700;line-height:1.4;margin:0}
.news-title a{color:var(--t-1)}
.news-title a:hover{color:var(--gold)}
.news-excerpt{
  font-size:13.5px;color:var(--t-2);line-height:1.72;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:14px;font-size:12.5px;color:var(--t-3);margin-top:auto}
.news-meta time{font-variant-numeric:tabular-nums}
.empty-state{
  grid-column:1/-1;
  border:1px dashed var(--line);border-radius:var(--r-card);
  padding:48px 24px;text-align:center;color:var(--t-2);
}
.empty-state i{font-size:26px;color:var(--gold);display:block;margin-bottom:14px}
.empty-state p{font-size:14px;margin-bottom:18px}

/* ---------- Feature split (1 big + 3 small) ---------- */
.feature-split{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:1024px){.feature-split{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}}
.feature-main{
  position:relative;display:block;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-2);box-shadow:var(--sh-1);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.feature-main:hover{transform:translateY(-4px);border-color:rgba(240,179,87,.45);box-shadow:var(--sh-2)}
.feature-main-media{aspect-ratio:16/10;overflow:hidden}
.feature-main-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.feature-main:hover .feature-main-media img{transform:scale(1.04)}
.feature-main-body{padding:22px;color:var(--t-1)}
.feature-main-body h3{font-size:22px;line-height:1.35;margin:12px 0 10px;color:var(--t-1)}
.feature-main-body p{font-size:14px;color:var(--t-2);line-height:1.75}
.feature-side{display:flex;flex-direction:column;gap:16px}
.side-card{
  display:flex;gap:14px;align-items:center;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:14px;color:var(--t-1);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.side-card:hover{transform:translateY(-3px);border-color:rgba(240,179,87,.45);box-shadow:var(--sh-1)}
.side-thumb{flex:0 0 112px;aspect-ratio:16/10;border-radius:var(--r-img);overflow:hidden;background:var(--bg-1)}
.side-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.side-card:hover .side-thumb img{transform:scale(1.05)}
.side-body h3{font-family:var(--sans);font-size:15.5px;font-weight:700;line-height:1.4;margin:0 0 6px;color:var(--t-1)}
.side-body p{font-size:12.5px;color:var(--t-3)}

/* ---------- Alternating list ---------- */
.alt-list{border-top:1px solid var(--line)}
.alt-row{
  display:grid;grid-template-columns:1fr;gap:20px;align-items:center;
  padding:28px 0;border-bottom:1px solid var(--line);
}
@media (min-width:900px){
  .alt-row{grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:36px}
  .alt-row.is-reverse .alt-media{order:2}
}
.alt-media{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);aspect-ratio:16/9;background:var(--bg-2)}
.alt-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.alt-row:hover .alt-media img{transform:scale(1.04)}
.alt-body h3{font-size:20px;line-height:1.4;margin:12px 0 10px}
.alt-body h3 a{color:var(--t-1)}
.alt-body h3 a:hover{color:var(--gold)}
.alt-body p{font-size:14px;color:var(--t-2);line-height:1.78;margin-bottom:14px}
.alt-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:12.5px;color:var(--t-3)}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  padding:88px 0;text-align:center;
  background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
}
.cta-band::before{content:"";position:absolute;inset:0;background:rgba(8,9,11,.72)}
.cta-inner{position:relative;z-index:2}
.cta-band h2{font-size:clamp(26px,4vw,42px);line-height:1.25;margin-bottom:16px}
.cta-band p{font-size:15px;color:var(--t-2);margin-bottom:30px}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:880px}
.faq-item{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:0 20px;transition:border-color .25s ease,background .25s ease;
}
.faq-item[open]{border-color:rgba(240,179,87,.45)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;font-size:16px;color:var(--t-1);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";color:var(--gold);font-size:20px;line-height:1;
  transition:transform .2s ease;flex:0 0 auto;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{
  font-size:14px;color:var(--t-2);line-height:1.8;
  padding:0 0 20px;border-left:2px solid var(--brand);margin-left:-20px;padding-left:18px;
}

/* ---------- Footer ---------- */
.site-footer{background:#08090B;border-top:1px solid var(--line);padding:64px 0 0}
.footer-grid{gap:34px 0}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:30px;height:30px;flex:0 0 30px;border-radius:10px}
.footer-brand span{font-size:15px;font-weight:700;letter-spacing:.02em}
.footer-desc{font-size:13.5px;color:var(--t-3);line-height:1.8;max-width:34ch}
.footer-title{font-size:14px;color:var(--t-1);margin:0 0 16px;font-family:var(--sans);font-weight:700;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13.5px;color:var(--t-2)}
.footer-col a:hover{color:var(--gold)}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--t-2);font-size:14px;
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.footer-social a:hover{border-color:var(--gold);color:var(--gold);transform:translateY(-2px)}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--line);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--t-3);
}
.footer-bottom a{color:var(--t-3)}
.footer-bottom a:hover{color:var(--gold)}

@media (max-width:575px){
  .hero{padding:76px 0 96px}
  .hero-stats li{padding:0 16px}
  .hero-stats strong{font-size:19px}
  .rank-no{font-size:40px;min-width:48px}
  .rank-thumb{flex:0 0 84px}
  .feature-main-body h3{font-size:19px}
  .cta-band{padding:64px 0}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
}

/* roulang page: category1 */
:root{
  --bg-0:#0B0C0F;
  --bg-1:#121317;
  --bg-2:#191B20;
  --bg-3:#1F2229;
  --line:rgba(255,255,255,0.08);
  --line-strong:rgba(255,255,255,0.16);
  --brand:#F2622E;
  --brand-dim:rgba(242,98,46,0.14);
  --gold:#F0B357;
  --gold-dim:rgba(240,179,87,0.12);
  --mint:#5AD1C8;
  --mint-dim:rgba(90,209,200,0.12);
  --t-1:#F4F5F7;
  --t-2:#A7ADB8;
  --t-3:#6F7681;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-hero:20px;
  --sh-1:0 1px 0 rgba(255,255,255,.04) inset, 0 12px 32px rgba(0,0,0,.45);
  --sh-2:0 1px 0 rgba(255,255,255,.06) inset, 0 18px 44px rgba(0,0,0,.55);
  --font-serif:"Noto Serif SC","Source Han Serif SC",Georgia,"Songti SC",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --sp-section:96px;
  --sp-section-sm:56px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t-1);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:0.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--gold);text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:#FFD48D;}
button{font-family:inherit;}
h1,h2,h3,h4{font-family:var(--font-serif);margin:0;letter-spacing:-0.01em;color:var(--t-1);}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:var(--brand);color:#0B0C0F;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1280px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px;}}
@media (min-width:1440px){.container{max-width:1360px;padding-left:48px;padding-right:48px;}}

/* ---------- 按钮 ---------- */
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;font-family:var(--font-sans);
  padding:12px 24px;border-radius:999px;border:1px solid transparent;
  cursor:pointer;overflow:hidden;white-space:nowrap;
  transition:transform .2s ease,box-shadow .25s ease,border-color .25s ease,background-color .25s ease,color .25s ease;
}
.btn::after{
  content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.35),transparent);
  transform:skewX(-18deg);transition:left .45s ease;pointer-events:none;
}
.btn:hover::after{left:130%;}
.btn-primary{background:var(--brand);color:#0B0C0F;box-shadow:0 10px 26px rgba(242,98,46,.28);}
.btn-primary:hover{background:#FF7742;color:#0B0C0F;transform:translateY(-1px);box-shadow:0 14px 32px rgba(242,98,46,.36);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--t-1);border-color:var(--line-strong);}
.btn-ghost:hover{color:var(--gold);border-color:var(--gold);background:var(--gold-dim);transform:translateY(-1px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:0.04em;line-height:1;
  padding:6px 10px;border-radius:999px;
  border:1px solid var(--line-strong);color:var(--t-2);background:rgba(255,255,255,.03);
  font-variant-numeric:tabular-nums;
}
.badge-gold{border-color:rgba(240,179,87,.34);color:var(--gold);background:var(--gold-dim);}
.badge-mint{border-color:rgba(90,209,200,.32);color:var(--mint);background:var(--mint-dim);}
.badge-brand{border-color:rgba(242,98,46,.34);color:#FF9264;background:var(--brand-dim);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;border-bottom:1px solid transparent;
  transition:background-color .3s ease,backdrop-filter .3s ease,border-color .3s ease;
}
.site-header.is-scrolled{
  background:rgba(11,12,15,.78);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--t-1);}
.brand:hover{color:var(--t-1);}
.brand-mark{
  width:32px;height:32px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--gold),var(--brand));
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(242,98,46,.28);
}
.brand-mark svg{width:19px;height:19px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:15.5px;font-weight:700;letter-spacing:0.02em;}
.brand-name em{font-style:normal;color:var(--brand);}
.brand-sub{font-size:11px;color:var(--t-3);letter-spacing:0.06em;}
.nav-main{flex:1 1 auto;display:flex;justify-content:center;}
.nav-main ul{display:flex;align-items:center;gap:28px;}
.nav-main a{
  position:relative;color:var(--t-2);font-size:14px;padding:6px 0;display:inline-block;
}
.nav-main a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--gold);
  transition:width .25s ease;
}
.nav-main a:hover{color:var(--t-1);}
.nav-main a:hover::after{width:100%;}
.nav-main a.is-active{color:var(--t-1);font-weight:600;}
.nav-main a.is-active::after{width:100%;background:var(--brand);}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:250px;padding:8px 10px 8px 12px;border-radius:10px;
  background:var(--bg-1);border:1px solid var(--line);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(242,98,46,.16);}
.search-box i{color:var(--t-3);font-size:13px;}
.search-box input{
  flex:1;background:transparent;border:0;outline:0;color:var(--t-1);
  font-size:13.5px;font-family:inherit;min-width:0;
}
.search-box input::placeholder{color:var(--t-3);}
.kbd{
  font-size:11px;color:var(--t-3);border:1px solid var(--line);border-radius:5px;
  padding:1px 5px;background:rgba(255,255,255,.03);letter-spacing:0.02em;
}
.icon-btn{
  width:40px;height:40px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--bg-1);border:1px solid var(--line);color:var(--t-2);font-size:14px;
  transition:border-color .22s ease,color .22s ease,transform .22s ease;
}
.icon-btn:hover{color:var(--gold);border-color:var(--gold);transform:translateY(-1px);}
.menu-toggle{display:none;}

.mobile-panel{
  display:none;border-top:1px solid var(--line);background:rgba(11,12,15,.96);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.mobile-panel.is-open{display:block;}
.mobile-panel ul{padding:10px 20px 20px;}
.mobile-panel li+li{border-top:1px solid var(--line);}
.mobile-panel a{display:block;padding:14px 0;color:var(--t-2);font-size:15px;}
.mobile-panel a.is-active{color:var(--brand);font-weight:600;}

/* ---------- 分类 Hero ---------- */
.hero-cat{
  position:relative;overflow:hidden;border-radius:var(--r-hero);
  min-height:360px;display:flex;align-items:flex-end;
  margin-top:24px;padding:40px 32px;
  background-image:linear-gradient(180deg,rgba(11,12,15,.35) 0%,rgba(11,12,15,.92) 78%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  border:1px solid var(--line);
}
.hero-cat::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 320px at 82% 12%,rgba(242,98,46,.22),transparent 70%);
}
.hero-cat-inner{position:relative;z-index:2;max-width:720px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;}
.hero-cat h1{
  font-size:clamp(28px,4.4vw,46px);line-height:1.1;font-weight:700;letter-spacing:-0.02em;
  margin-bottom:14px;
}
.hero-cat h1 span{color:var(--brand);}
.hero-sub{color:var(--t-2);font-size:16px;max-width:560px;margin-bottom:24px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 通用区块 ---------- */
.section{padding-top:var(--sp-section);}
.section-tight{padding-top:64px;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:32px;flex-wrap:wrap;
}
.section-title{position:relative;padding-left:16px;}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),var(--gold));
}
.section-title h2{font-size:clamp(22px,3vw,32px);line-height:1.2;}
.section-title p{color:var(--t-3);font-size:14px;margin:8px 0 0;}
.link-more{font-size:14px;color:var(--gold);display:inline-flex;align-items:center;gap:6px;}
.link-more i{font-size:12px;transition:transform .22s ease;}
.link-more:hover i{transform:translateX(4px);}

/* ---------- 看点横条 ---------- */
.feature-strip{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:0;
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
}
.feature-cell{padding:26px 24px;border-right:1px solid var(--line);}
.feature-cell:last-child{border-right:0;}
.feature-cell i{color:var(--gold);font-size:18px;margin-bottom:12px;display:block;}
.feature-cell h3{font-size:16px;margin-bottom:8px;font-family:var(--font-sans);font-weight:600;}
.feature-cell p{color:var(--t-2);font-size:13.5px;line-height:1.7;margin:0;}

/* ---------- 侧栏 + 交错列表 ---------- */
.layout-aside{display:grid;grid-template-columns:240px 1fr;gap:40px;align-items:start;}
.aside-nav{
  position:sticky;top:88px;background:var(--bg-1);border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px 20px;box-shadow:var(--sh-1);
}
.aside-nav h3{font-size:15px;font-family:var(--font-sans);font-weight:600;margin-bottom:14px;color:var(--t-1);}
.aside-nav ul li{position:relative;}
.aside-nav ul a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 4px 11px 12px;color:var(--t-2);font-size:14px;border-bottom:1px solid var(--line);
  transition:color .2s ease,padding-left .2s ease;
}
.aside-nav ul li:last-child a{border-bottom:0;}
.aside-nav ul a::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:2px;border-radius:2px;
  background:var(--brand);opacity:0;transition:opacity .2s ease;
}
.aside-nav ul a:hover,.aside-nav ul a.is-active{color:var(--gold);padding-left:16px;}
.aside-nav ul a:hover::before,.aside-nav ul a.is-active::before{opacity:1;}
.aside-note{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--t-3);line-height:1.7;}

.interleave{display:flex;flex-direction:column;gap:28px;}
.interleave-item{
  display:grid;grid-template-columns:300px 1fr;gap:26px;align-items:center;
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px;box-shadow:var(--sh-1);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.interleave-item:nth-child(even){grid-template-columns:1fr 300px;}
.interleave-item:nth-child(even) .il-media{order:2;}
.interleave-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(240,179,87,.4);}
.il-media{overflow:hidden;border-radius:var(--r-img);}
.il-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease;}
.interleave-item:hover .il-media img{transform:scale(1.04);}
.il-body h3{font-size:19px;line-height:1.35;margin-bottom:10px;}
.il-body h3 a{color:var(--t-1);}
.il-body h3 a:hover{color:var(--gold);}
.il-body p{color:var(--t-2);font-size:14.5px;line-height:1.75;margin-bottom:14px;}
.il-foot{display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.il-meta{font-size:12.5px;color:var(--t-3);font-variant-numeric:tabular-nums;display:flex;align-items:center;gap:8px;}

/* ---------- 画质说明 交替 ---------- */
.rows-alt{display:flex;flex-direction:column;}
.row-alt{
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
  padding:34px 0;border-bottom:1px solid var(--line);
}
.row-alt:first-child{padding-top:0;}
.row-alt:last-child{border-bottom:0;padding-bottom:0;}
.row-alt:nth-child(even) .row-media{order:2;}
.row-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border:1px solid var(--line);}
.row-text h3{font-size:21px;margin-bottom:12px;}
.row-text p{color:var(--t-2);font-size:15px;margin-bottom:14px;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:step;}
.step{
  position:relative;background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px 24px;box-shadow:var(--sh-1);transition:border-color .25s ease,transform .25s ease;
}
.step:hover{border-color:rgba(240,179,87,.42);transform:translateY(-3px);}
.step-num{
  font-family:var(--font-serif);font-size:34px;color:var(--gold);line-height:1;
  display:block;margin-bottom:14px;font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;margin-bottom:10px;}
.step p{color:var(--t-2);font-size:14px;margin:0;}
.step-line{
  height:2px;width:100%;margin-top:18px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),rgba(242,98,46,0));
}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px;font-size:16px;color:var(--t-1);position:relative;
  transition:color .2s ease,padding-left .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;border-radius:2px;
  background:var(--brand);opacity:0;transition:opacity .2s ease;
}
.faq-item summary:hover{color:var(--gold);}
.faq-item[open] summary{color:var(--t-1);padding-left:16px;}
.faq-item[open] summary::before{opacity:1;}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;border:1px solid var(--line-strong);
  display:inline-flex;align-items:center;justify-content:center;color:var(--gold);font-size:13px;
  transition:transform .2s ease,border-color .2s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);border-color:var(--gold);}
.faq-answer{padding:0 4px 22px 16px;color:var(--t-2);font-size:14px;line-height:1.8;max-width:760px;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-hero);
  background-image:linear-gradient(rgba(11,12,15,.78),rgba(11,12,15,.78)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border:1px solid var(--line);padding:56px 40px;text-align:center;
}
.cta-band h2{font-size:clamp(24px,3.4vw,36px);margin-bottom:14px;}
.cta-band p{color:var(--t-2);font-size:15px;margin:0 auto 26px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#08090B;border-top:1px solid var(--line);margin-top:var(--sp-section);
  padding:56px 0 28px;
}
.footer-grid{row-gap:32px;}
.footer-col h3.footer-title{
  font-size:14px;font-family:var(--font-sans);font-weight:600;color:var(--t-1);
  margin-bottom:16px;letter-spacing:0.04em;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{color:var(--t-2);font-size:14px;}
.footer-col ul a:hover{color:var(--gold);}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;margin-bottom:14px;}
.footer-brand .brand-mark{width:30px;height:30px;border-radius:8px;}
.footer-desc{color:var(--t-3);font-size:13.5px;line-height:1.75;max-width:280px;margin-bottom:18px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--t-2);font-size:14px;
  transition:border-color .22s ease,color .22s ease,transform .22s ease;
}
.footer-social a:hover{color:var(--gold);border-color:var(--gold);transform:translateY(-2px);}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  color:var(--t-3);font-size:13px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-main{display:none;}
  .search-box{width:200px;}
  .layout-aside{grid-template-columns:1fr;}
  .aside-nav{position:static;}
  .interleave-item,.interleave-item:nth-child(even){grid-template-columns:1fr;}
  .interleave-item:nth-child(even) .il-media{order:0;}
  .feature-strip{grid-template-columns:1fr 1fr;}
  .feature-cell{border-bottom:1px solid var(--line);}
  .feature-cell:nth-child(2n){border-right:0;}
  .steps{grid-template-columns:1fr;}
}
@media (max-width:767px){
  :root{--sp-section:var(--sp-section-sm);}
  .header-inner{height:56px;gap:12px;}
  .search-box{display:none;}
  .header-actions .btn{display:none;}
  .menu-toggle{display:inline-flex;}
  .hero-cat{min-height:320px;padding:28px 22px;border-radius:16px;}
  .hero-sub{font-size:15px;}
  .row-alt{grid-template-columns:1fr;gap:20px;}
  .row-alt:nth-child(even) .row-media{order:0;}
  .feature-strip{grid-template-columns:1fr;}
  .feature-cell{border-right:0;}
  .cta-band{padding:38px 22px;border-radius:16px;}
  .footer-desc{max-width:none;}
}
@media (max-width:575px){
  body{font-size:15px;}
  .il-body h3{font-size:17px;}
  .section-head{margin-bottom:24px;}
  .interleave-item{padding:14px;gap:18px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .btn:hover,.interleave-item:hover,.step:hover{transform:none;}
}

/* roulang page: article */
:root{
  --bg-0:#0B0C0F;
  --bg-1:#121317;
  --bg-2:#191B20;
  --bg-3:#08090B;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --brand:#F2622E;
  --brand-soft:rgba(242,98,46,.12);
  --gold:#F0B357;
  --gold-soft:rgba(240,179,87,.12);
  --mint:#5AD1C8;
  --t-1:#F4F5F7;
  --t-2:#A7ADB8;
  --t-3:#6F7681;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 0 rgba(255,255,255,.04) inset, 0 12px 32px rgba(0,0,0,.45);
  --sh-2:0 18px 44px rgba(0,0,0,.55);
  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,"Times New Roman",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;
  background:var(--bg-0);
  color:var(--t-1);
  font-family:var(--sans);
  font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--gold);text-decoration:none;transition:color .2s ease,border-color .2s ease}
a:hover{color:var(--brand)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;font-weight:700}
p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
::selection{background:rgba(242,98,46,.35);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1024px){.container{padding:0 48px}}
@media (min-width:1440px){.container{max-width:1360px}}

/* ===================== header ===================== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.is-scrolled{
  background:rgba(11,12,15,.72);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
}
.header-inner{height:56px;display:flex;align-items:center;gap:18px}
@media (min-width:1024px){.header-inner{height:64px;gap:28px}}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--t-1)}
.brand:hover{color:var(--t-1)}
.brand-mark{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--gold));
  box-shadow:0 6px 18px rgba(242,98,46,.35);flex:0 0 auto;
}
.brand-mark svg{width:18px;height:18px}
.brand-copy{display:flex;flex-direction:column;justify-content:center;gap:3px;min-width:0}
.brand-text{font-size:15px;font-weight:700;letter-spacing:.02em;white-space:nowrap;line-height:1.1}
.brand-text .hi{color:var(--brand)}
.brand-sub{font-size:10px;letter-spacing:.08em;color:var(--t-3);line-height:1;white-space:nowrap}
@media (min-width:1024px){
  .brand-text{font-size:16px}
  .brand-sub{font-size:11px}
}

.nav-main{display:none}
@media (min-width:1024px){
  .nav-main{display:block;margin-left:6px}
  .nav-main ul{display:flex;align-items:center;gap:28px}
  .nav-main a{position:relative;display:block;font-size:14px;font-weight:500;color:var(--t-2);padding:6px 0}
  .nav-main a::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
    background:var(--gold);transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
  }
  .nav-main a:hover,.nav-main a.is-active{color:var(--t-1)}
  .nav-main a:hover::after,.nav-main a.is-active::after{transform:scaleX(1)}
}

.header-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.search-box{display:none}
@media (min-width:1024px){
  .search-box{
    display:flex;align-items:center;gap:8px;width:260px;height:40px;padding:0 12px;
    background:var(--bg-2);border:1px solid var(--line);border-radius:10px;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(242,98,46,.18)}
  .search-box i{color:var(--t-3);font-size:13px;flex:0 0 auto}
  .search-box input{flex:1;min-width:0;background:transparent;border:0;outline:0;font-size:13px;color:var(--t-1)}
  .search-box input::placeholder{color:var(--t-3)}
  .kbd{flex:0 0 auto;font-size:11px;color:var(--t-3);border:1px solid var(--line);border-radius:5px;padding:1px 5px;background:rgba(255,255,255,.03)}
}
@media (min-width:1440px){.search-box{width:300px}}
.icon-btn{
  width:40px;height:40px;border-radius:10px;display:none;place-items:center;
  border:1px solid var(--line);color:var(--t-2);background:var(--bg-2);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.icon-btn:hover{color:var(--gold);border-color:rgba(240,179,87,.5);background:rgba(240,179,87,.08)}
@media (min-width:1024px){.icon-btn{display:grid}}
.nav-toggle{
  width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--t-2);background:var(--bg-2);
  transition:color .2s ease,border-color .2s ease;
}
.nav-toggle:hover{color:var(--gold);border-color:rgba(240,179,87,.5)}
@media (min-width:1024px){.nav-toggle{display:none}}
.mobile-panel{display:none;border-top:1px solid var(--line);background:rgba(11,12,15,.97);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}
.mobile-panel.is-open{display:block}
.mobile-panel ul{padding:8px 20px 18px}
.mobile-panel li{border-bottom:1px solid var(--line)}
.mobile-panel li:last-child{border-bottom:0}
.mobile-panel a{display:block;padding:13px 0;font-size:15px;color:var(--t-2)}
.mobile-panel a:hover{color:var(--gold)}
@media (min-width:1024px){.mobile-panel{display:none !important}}

/* ===================== buttons ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:14px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;position:relative;overflow:hidden;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn-primary{background:var(--brand);color:#0B0C0F;box-shadow:0 8px 24px rgba(242,98,46,.28)}
.btn-primary:hover{color:#0B0C0F;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 12px 30px rgba(242,98,46,.36)}
.btn-primary::after{
  content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.45),transparent);
  transform:skewX(-18deg);transition:left .45s ease;
}
.btn-primary:hover::after{left:120%}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--t-1)}
.btn-ghost:hover{border-color:var(--gold);background:rgba(240,179,87,.08);color:var(--gold);transform:translateY(-1px)}
.btn-quiet{background:rgba(255,255,255,.04);border-color:var(--line);color:var(--t-2)}
.btn-quiet:hover{color:var(--t-1);border-color:var(--line-strong);background:rgba(255,255,255,.08)}
.btn-sm{height:36px;padding:0 16px;font-size:13px;border-radius:9px}
.btn:active{transform:translateY(0) scale(.99)}

/* ===================== badges ===================== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.04em;line-height:1;
  padding:6px 12px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--t-2);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.badge-gold{border-color:rgba(240,179,87,.3);background:var(--gold-soft);color:var(--gold)}
a.badge-gold:hover{background:rgba(240,179,87,.2);color:var(--gold);border-color:rgba(240,179,87,.6)}
.badge-mint{border-color:rgba(90,209,200,.3);background:rgba(90,209,200,.1);color:var(--mint)}
.badge-brand{border-color:rgba(242,98,46,.35);background:var(--brand-soft);color:#FF8A5C}

/* ===================== article ===================== */
.article-main{padding:34px 0 96px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--t-3);margin-bottom:22px}
.crumbs a{color:var(--t-3)}
.crumbs a:hover{color:var(--gold)}
.crumbs .sep{opacity:.55}
.crumbs .current{color:var(--t-2)}
.article-head{max-width:920px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;
  font-size:12px;letter-spacing:.06em;padding:6px 13px;border-radius:999px;
  color:var(--gold);background:var(--gold-soft);border:1px solid rgba(240,179,87,.28);
}
.article-title{
  font-family:var(--serif);
  font-size:clamp(27px,4.2vw,46px);
  line-height:1.2;letter-spacing:-.01em;color:var(--t-1);
  margin-bottom:18px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--t-3);font-variant-numeric:tabular-nums}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--t-3);opacity:.6}
.article-meta b{color:var(--t-2);font-weight:600}
.article-cover{
  margin:30px 0 0;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-1);background:var(--bg-1);
}
.article-cover img{width:100%;aspect-ratio:21/9;object-fit:cover}

.article-layout{
  display:grid;grid-template-columns:minmax(0,748px) 220px;
  gap:56px;justify-content:center;align-items:start;margin-top:52px;
}
.article-aside{position:sticky;top:104px}
.toc-card{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:18px 16px}
.toc-title{font-size:12px;letter-spacing:.1em;color:var(--t-3);margin-bottom:12px;font-weight:600}
.toc-list li+li{margin-top:2px}
.toc-list a{
  display:block;font-size:13px;line-height:1.5;color:var(--t-2);
  padding:7px 10px;border-radius:8px;border-left:2px solid transparent;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.toc-list a:hover{color:var(--t-1);background:rgba(255,255,255,.04)}
.toc-list a.is-active{color:var(--gold);border-left-color:var(--brand);background:rgba(240,179,87,.07)}

.article-body{min-width:0;font-size:16px;line-height:1.9;color:var(--t-2)}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  font-family:var(--serif);font-size:clamp(21px,2.4vw,27px);line-height:1.35;
  color:var(--t-1);margin:40px 0 16px;padding-left:14px;position:relative;scroll-margin-top:100px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:2px;background:var(--brand);
}
.article-body h3{font-size:18px;line-height:1.5;color:var(--t-1);margin:28px 0 12px;scroll-margin-top:100px}
.article-body h4{font-size:16px;line-height:1.55;color:var(--t-1);margin:22px 0 10px}
.article-body a{color:var(--gold);border-bottom:1px solid rgba(240,179,87,.35)}
.article-body a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.article-body strong{color:var(--t-1);font-weight:600}
.article-body blockquote{
  margin:24px 0;padding:6px 0 6px 20px;border-left:3px solid var(--gold);
  font-style:italic;color:var(--t-2);
  background:linear-gradient(90deg,rgba(240,179,87,.07),transparent);
}
.article-body ul,.article-body ol{margin:0 0 1.15em}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:8px}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;
  border-radius:2px;background:var(--brand);transform:rotate(45deg);
}
.article-body ol{counter-reset:li}
.article-body ol li{position:relative;padding-left:26px;margin-bottom:8px;counter-increment:li}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:.22em;
  font-size:12px;font-weight:700;color:var(--gold);font-variant-numeric:tabular-nums;
}
.article-body img{border-radius:var(--r-img);margin:20px 0;width:100%}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:12px;color:var(--t-3);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14px}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line)}
.article-body th{color:var(--t-1);font-weight:600;border-bottom-color:var(--line-strong)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.article-body code{background:var(--bg-2);border:1px solid var(--line);border-radius:6px;padding:2px 6px;font-size:13px;color:var(--gold)}

.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;
  padding:64px 24px;border:1px dashed var(--line-strong);border-radius:var(--r-card);color:var(--t-3);
}
.empty-state i{font-size:30px;color:var(--t-3)}
.empty-state p{font-size:15px;color:var(--t-2)}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:46px;padding-top:26px;border-top:1px solid var(--line)}
.foot-bar{
  display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;
  margin-top:34px;padding:18px 20px;background:var(--bg-1);
  border:1px solid var(--line);border-radius:var(--r-card);
}
.foot-bar .fb-text{font-size:13px;color:var(--t-3)}
.foot-bar .fb-actions{display:flex;flex-wrap:wrap;gap:10px}

/* ===================== sections / cards ===================== */
.section{margin-top:72px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
.section-title{
  font-family:var(--serif);font-size:clamp(20px,2.4vw,28px);line-height:1.25;
  color:var(--t-1);position:relative;padding-bottom:14px;
}
.section-title::after{content:"";position:absolute;left:0;bottom:0;width:40px;height:2px;border-radius:2px;background:var(--gold)}
.section-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--gold);white-space:nowrap}
.section-link i{transition:transform .2s ease}
.section-link:hover i{transform:translateX(3px)}

.card-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:576px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr)}}
.card{
  display:flex;flex-direction:column;overflow:hidden;color:inherit;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(240,179,87,.35);color:inherit}
.card-media{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--bg-1)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-media .badge{position:absolute;left:12px;top:12px}
.card-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{
  font-size:16px;line-height:1.4;font-weight:600;color:var(--t-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-desc{
  font-size:13px;line-height:1.7;color:var(--t-3);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  margin-top:auto;display:flex;align-items:center;gap:8px;
  font-size:12px;color:var(--t-3);font-variant-numeric:tabular-nums;
}

/* ===================== cta ===================== */
.cta-bar{
  position:relative;overflow:hidden;margin-top:72px;
  border:1px solid var(--line);border-radius:20px;padding:48px 34px;
  background:var(--bg-1);
}
@media (min-width:768px){.cta-bar{padding:56px 48px}}
.cta-bar::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;opacity:.28;
}
.cta-bar::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,12,15,.95),rgba(11,12,15,.62));
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.cta-title{font-family:var(--serif);font-size:clamp(22px,2.8vw,32px);line-height:1.25;color:var(--t-1);margin-bottom:8px}
.cta-sub{font-size:14px;color:var(--t-2)}

/* ===================== footer ===================== */
.site-footer{background:var(--bg-3);border-top:1px solid var(--line);margin-top:96px;padding-top:60px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:var(--t-1);margin-bottom:14px;letter-spacing:.02em}
.footer-brand .brand-mark{width:30px;height:30px;border-radius:9px}
.footer-desc{font-size:13px;line-height:1.85;color:var(--t-3);max-width:290px;margin-bottom:18px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line);background:var(--bg-1);color:var(--t-2);font-size:13px;
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.footer-social a:hover{color:var(--gold);border-color:rgba(240,179,87,.5);background:rgba(240,179,87,.08);transform:translateY(-2px)}
.footer-col{margin-bottom:32px}
.footer-title{
  font-size:14px;color:var(--t-1);letter-spacing:.04em;margin-bottom:16px;
  position:relative;padding-bottom:10px;
}
.footer-title::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;border-radius:2px;background:var(--brand)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:13px;color:var(--t-2)}
.footer-col ul a:hover{color:var(--gold)}
.footer-bottom{
  margin-top:24px;border-top:1px solid var(--line);padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12px;color:var(--t-3);line-height:1.7;
}

@media (max-width:1023px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .article-aside{display:none}
}
@media (max-width:575px){
  .article-main{padding:24px 0 64px}
  .article-cover img{aspect-ratio:16/10}
  .section{margin-top:56px}
  .cta-bar{padding:36px 22px}
  .site-footer{margin-top:64px;padding-top:44px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --bg-0:#0B0C0F;
  --bg-1:#121317;
  --bg-2:#191B20;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --brand:#F2622E;
  --gold:#F0B357;
  --mint:#5AD1C8;
  --t-1:#F4F5F7;
  --t-2:#A7ADB8;
  --t-3:#6F7681;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:inset 0 1px 0 rgba(255,255,255,.04), 0 12px 32px rgba(0,0,0,.45);
  --sh-2:inset 0 1px 0 rgba(255,255,255,.06), 0 18px 44px rgba(0,0,0,.55);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --font-sans:"Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --gap-sec:96px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t-1);
  font-family:var(--font-sans);
  font-size:15px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--gold);text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease)}
a:hover,a:focus{color:var(--brand)}
button{font-family:inherit}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--t-1)}
ul{margin:0;padding:0;list-style:none}
figure{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
@media (min-width:1440px){.container{max-width:1360px}}
@media (max-width:768px){.container{padding:0 20px}}
.section{padding:var(--gap-sec) 0}
.section.tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head.is-center{flex-direction:column;align-items:center;text-align:center}
.section-title{font-family:var(--font-serif);font-size:clamp(22px,3vw,32px);line-height:1.2;letter-spacing:-.01em}
.section-title::after{content:"";display:block;width:40px;height:2px;background:var(--gold);margin-top:14px}
.section-head.is-center .section-title::after{margin-left:auto;margin-right:auto}
.section-sub{color:var(--t-2);font-size:14px;max-width:620px;margin-top:12px}
.more-link{font-size:14px;color:var(--gold);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.more-link i{transition:transform .22s var(--ease)}
.more-link:hover i{transform:translateX(3px)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .28s var(--ease),border-color .28s var(--ease),backdrop-filter .28s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(11,12,15,.72);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;gap:26px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:none;min-width:0}
.brand-mark{
  width:30px;height:30px;border-radius:9px;flex:none;
  background:linear-gradient(135deg,var(--brand),var(--gold));
  display:grid;place-items:center;
  box-shadow:0 6px 18px rgba(242,98,46,.28);
}
.brand-mark svg{width:17px;height:17px}
.brand-text{font-family:var(--font-serif);font-size:16px;font-weight:700;letter-spacing:.02em;color:var(--t-1);white-space:nowrap}
.brand-text .hl{color:var(--brand)}
.nav-main{margin-left:12px}
.nav-main ul{display:flex;align-items:center;gap:28px}
.nav-main a{position:relative;display:inline-block;padding:6px 0;font-size:14px;color:var(--t-2)}
.nav-main a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--gold);
  transform:scaleX(0);transform-origin:left;transition:transform .26s var(--ease);
}
.nav-main a:hover{color:var(--t-1)}
.nav-main a:hover::after,.nav-main a.is-active::after{transform:scaleX(1)}
.nav-main a.is-active{color:var(--t-1)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{position:relative;display:flex;align-items:center;width:270px}
.nav-search i{position:absolute;left:14px;font-size:13px;color:var(--t-3);pointer-events:none}
.nav-search input{
  width:100%;height:40px;border-radius:12px;padding:0 52px 0 36px;
  background:rgba(18,19,23,.9);border:1px solid var(--line);color:var(--t-1);
  font-size:13px;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.nav-search input::placeholder{color:var(--t-3)}
.nav-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(242,98,46,.18)}
.nav-search .kbd{
  position:absolute;right:10px;font-size:11px;color:var(--t-3);
  border:1px solid var(--line);border-radius:6px;padding:2px 6px;background:rgba(11,12,15,.7);
  font-variant-numeric:tabular-nums;
}
.icon-btn{
  width:40px;height:40px;flex:none;border-radius:12px;
  border:1px solid var(--line);background:var(--bg-1);color:var(--t-2);
  display:grid;place-items:center;cursor:pointer;
  transition:color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.icon-btn:hover{color:var(--gold);border-color:var(--line-strong);transform:translateY(-1px)}
.nav-toggle{display:none}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:12px 24px;font-size:14px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .24s var(--ease),filter .22s var(--ease);
}
.btn-primary{background:var(--brand);color:#0B0C0F;box-shadow:0 10px 24px rgba(242,98,46,.24)}
.btn-primary:hover,.btn-primary:focus{color:#0B0C0F;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 14px 30px rgba(242,98,46,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--t-1)}
.btn-ghost:hover,.btn-ghost:focus{border-color:var(--gold);background:rgba(240,179,87,.08);color:var(--t-1)}
.btn-sm{padding:9px 18px;font-size:13px}
.btn-lg{padding:15px 32px;font-size:15px}
.header-cta{padding:10px 20px;font-size:13px}
.mobile-drawer{
  position:fixed;inset:64px 0 0 0;z-index:70;
  background:rgba(11,12,15,.97);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  padding:28px 20px;display:none;overflow-y:auto;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer ul{display:flex;flex-direction:column;gap:4px}
.mobile-drawer a{
  display:block;padding:14px 4px;font-size:16px;color:var(--t-1);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a.is-active{color:var(--brand)}
.mobile-drawer .drawer-search{margin:20px 0 6px;position:relative;display:flex;align-items:center}
.mobile-drawer .drawer-search input{
  width:100%;height:44px;border-radius:12px;padding:0 16px 0 38px;
  background:var(--bg-1);border:1px solid var(--line);color:var(--t-1);font-size:14px;
}
.mobile-drawer .drawer-search i{position:absolute;left:14px;color:var(--t-3);font-size:13px}
.mobile-drawer .btn{width:100%;margin-top:16px}
body.no-scroll{overflow:hidden}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:104px 0 88px;
  text-align:center;
  background:var(--bg-0);
}
.hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.3;
}
.hero-veil{
  position:absolute;inset:0;
  background:
    radial-gradient(820px 400px at 50% 0%,rgba(242,98,46,.24),transparent 68%),
    radial-gradient(640px 360px at 88% 82%,rgba(240,179,87,.14),transparent 70%),
    linear-gradient(180deg,rgba(11,12,15,.62) 0%,rgba(11,12,15,.86) 58%,var(--bg-0) 100%);
}
.hero-inner{position:relative;z-index:2}
.badge-row{display:inline-flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:24px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;letter-spacing:.04em;
  border:1px solid rgba(240,179,87,.32);background:rgba(240,179,87,.12);color:var(--gold);
}
.badge-mint{border-color:rgba(90,209,200,.32);background:rgba(90,209,200,.12);color:var(--mint)}
.badge-plain{border-color:var(--line);background:rgba(255,255,255,.04);color:var(--t-2)}
.hero h1{
  font-family:var(--font-serif);
  font-size:clamp(32px,5.2vw,56px);
  line-height:1.08;letter-spacing:-.02em;
  margin:0 auto 20px;max-width:900px;
}
.hero h1 .accent{color:var(--brand)}
.hero-sub{color:var(--t-2);font-size:clamp(15px,1.6vw,17px);max-width:620px;margin:0 auto 32px;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-bottom:34px}
.tag-strip{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;max-width:860px;margin:0 auto}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 16px;border-radius:999px;font-size:13px;color:var(--t-2);
  border:1px solid var(--line);background:rgba(25,27,32,.72);
  transition:transform .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.tag:hover{color:var(--t-1);border-color:var(--gold);background:rgba(240,179,87,.08);transform:translateY(-1px)}
.tag.is-on{color:#0B0C0F;background:var(--gold);border-color:var(--gold);font-weight:600}

/* ============ 数据带 ============ */
.stats-band{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(18,19,23,.9),rgba(11,12,15,.9));
  padding:34px 0;
}
.stats-grid{row-gap:20px}
.stat{display:flex;flex-direction:column;gap:4px;text-align:center}
.stat-num{
  font-family:var(--font-serif);font-size:30px;line-height:1.1;color:var(--gold);
  font-variant-numeric:tabular-nums;
}
.stat-label{font-size:13px;color:var(--t-2);letter-spacing:.04em}

/* ============ 热播栅格 ============ */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.poster-grid{row-gap:24px}
.poster-card{
  position:relative;display:block;overflow:hidden;
  border-radius:var(--r-card);border:1px solid var(--line);
  background:var(--bg-2);box-shadow:var(--sh-1);color:var(--t-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.poster-card:hover,.poster-card:focus{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(240,179,87,.5);color:var(--t-1)}
.poster-media{position:relative;aspect-ratio:2/3;overflow:hidden;background:var(--bg-1)}
.poster-media img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease)}
.poster-card:hover .poster-media img{transform:scale(1.04)}
.poster-veil{
  position:absolute;left:0;right:0;bottom:0;padding:18px 16px 16px;
  background:linear-gradient(180deg,rgba(11,12,15,0) 0%,rgba(11,12,15,.82) 46%,rgba(11,12,15,.95) 100%);
  transition:transform .32s var(--ease);
}
.poster-card:hover .poster-veil{transform:translateY(-6px)}
.poster-card:hover .poster-veil .badge{opacity:1;transform:translateY(0)}
.poster-veil .badge{opacity:.82;transform:translateY(4px);transition:opacity .3s var(--ease),transform .3s var(--ease)}
.poster-title{font-family:var(--font-serif);font-size:16px;line-height:1.35;margin:0 0 8px;color:var(--t-1)}
.poster-meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--t-2);font-variant-numeric:tabular-nums}

/* ============ 交替图文 ============ */
.split-section{border-top:1px solid var(--line)}
.split{
  display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;
  padding:44px 0;border-bottom:1px solid var(--line);
}
.split:last-child{border-bottom:0}
.split.is-reverse .split-media{order:2}
.split.is-reverse .split-body{order:1}
.split-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-1);aspect-ratio:16/10;
}
.split-media img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease)}
.split:hover .split-media img{transform:scale(1.03)}
.split-body h3{font-family:var(--font-serif);font-size:clamp(20px,2.2vw,26px);line-height:1.3;margin:14px 0 14px}
.split-body p{color:var(--t-2);font-size:15px;line-height:1.85;margin:0 0 20px}
.split-body .more-link{font-size:14px}

/* ============ FAQ ============ */
.faq-list{max-width:840px;margin:0 auto}
.faq-item{
  border:1px solid var(--line);border-radius:14px;background:var(--bg-1);
  margin-bottom:12px;overflow:hidden;transition:border-color .25s var(--ease);
}
.faq-item:hover{border-color:rgba(255,255,255,.15)}
.faq-item.is-open{border-color:rgba(240,179,87,.42)}
.faq-q{
  position:relative;width:100%;background:none;border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 20px 18px 22px;text-align:left;font-size:16px;color:var(--t-1);
  transition:color .22s var(--ease);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;
  background:var(--brand);transform:scaleY(0);transform-origin:center;
  transition:transform .22s var(--ease);
}
.faq-item.is-open .faq-q::before{transform:scaleY(1)}
.faq-q:hover{color:var(--gold)}
.faq-sign{
  flex:none;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;
  color:var(--gold);font-size:14px;transition:transform .22s var(--ease);
}
.faq-item.is-open .faq-sign{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a-inner{padding:0 22px 20px;color:var(--t-2);font-size:14px;line-height:1.85}

/* ============ CTA ============ */
.cta-band{position:relative;overflow:hidden;padding:86px 0;text-align:center;border-top:1px solid var(--line)}
.cta-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;opacity:.32}
.cta-veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,12,15,.82),rgba(11,12,15,.94))}
.cta-inner{position:relative;z-index:2}
.cta-inner h2{font-family:var(--font-serif);font-size:clamp(24px,3.4vw,38px);line-height:1.2;margin-bottom:16px}
.cta-inner p{color:var(--t-2);font-size:15px;max-width:560px;margin:0 auto 30px}
.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px}

/* ============ 页脚 ============ */
.site-footer{background:#08090B;border-top:1px solid var(--line);padding:64px 0 28px}
.footer-grid{row-gap:36px}
.footer-col{font-size:14px}
.footer-brand{display:flex;align-items:center;gap:10px;font-family:var(--font-serif);font-size:16px;font-weight:700;color:var(--t-1);margin-bottom:14px}
.footer-brand .brand-mark{width:28px;height:28px;border-radius:9px}
.footer-brand .brand-mark svg{width:16px;height:16px}
.footer-desc{color:var(--t-2);font-size:13px;line-height:1.8;max-width:280px;margin-bottom:18px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--t-2);background:rgba(255,255,255,.02);
  transition:color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.footer-social a:hover{color:var(--gold);border-color:rgba(240,179,87,.5);transform:translateY(-2px)}
.footer-title{font-size:13px;letter-spacing:.08em;color:var(--t-1);margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{color:var(--t-2);font-size:13px}
.footer-col ul a:hover{color:var(--gold)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  color:var(--t-3);font-size:12px;line-height:1.8;
}

/* ============ 动效 ============ */
.fade-up{opacity:0;transform:translateY(16px);animation:fadeUp .55s var(--ease) forwards}
.fade-up.d1{animation-delay:.06s}
.fade-up.d2{animation-delay:.12s}
.fade-up.d3{animation-delay:.18s}
.fade-up.d4{animation-delay:.24s}
@keyframes fadeUp{to{opacity:1;transform:translateY(0)}}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .fade-up{opacity:1;transform:none}
}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .nav-search{width:210px}
}
@media (max-width:1023px){
  .nav-main,.nav-search,.header-cta{display:none}
  .nav-toggle{display:grid}
  .split{grid-template-columns:1fr;gap:28px}
  .split.is-reverse .split-media,.split.is-reverse .split-body{order:0}
  :root{--gap-sec:72px}
  .hero{padding:78px 0 66px}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .hero{padding:62px 0 54px}
  .hero h1{font-size:clamp(28px,8vw,38px)}
  .stats-band{padding:26px 0}
  .stat-num{font-size:26px}
  .cta-band{padding:62px 0}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .header-inner{height:56px}
  .brand-text{font-size:15px}
  .poster-veil{padding:14px 12px 12px}
  .poster-title{font-size:14px}
  .mobile-drawer{inset:56px 0 0 0}
  .footer-bottom{flex-direction:column}
}