/* roulang page: index */
:root{
  --c-ink:#0B0D0C;
  --c-ink-2:#141816;
  --c-ink-3:#1B211F;
  --c-line:rgba(255,255,255,.10);
  --c-line-strong:rgba(255,255,255,.22);
  --c-primary:#C6F53C;
  --c-accent:#FF5A28;
  --c-paper:#F3F1EA;
  --c-text:#EDEFEC;
  --c-muted:#98A09B;
  --radius-panel:6px;
  --radius-img:4px;
  --radius-pill:999px;
  --gap-section:clamp(72px,9vw,140px);
  --ease:cubic-bezier(.22,.8,.2,1);
  --dur:320ms;
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","Oswald",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-ink);
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.9;
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--c-primary);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{
  width:100%;
  max-width:1320px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){
  .container{max-width:1400px;padding:0 32px;}
}

/* ---------- 顶部信息条 ---------- */
.topbar{
  height:34px;
  background:#0B0D0C;
  border-bottom:1px solid var(--c-line);
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--c-muted);
}
.topbar .container{
  height:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.topbar-left{display:flex;align-items:center;gap:10px;white-space:nowrap;}
.topbar-left .dot{width:6px;height:6px;border-radius:50%;background:var(--c-primary);}
.topbar-mid{
  flex:1;
  min-width:0;
  overflow:hidden;
  white-space:nowrap;
  text-overflow:ellipsis;
  text-align:center;
  color:#c6cdc9;
}
.topbar-right{display:flex;align-items:center;white-space:nowrap;}
.topbar-right a{padding:0 12px;border-left:1px solid rgba(255,255,255,.12);}
.topbar-right a:first-child{border-left:0;}
.topbar-right a:last-child{padding-right:0;}
@media (max-width:1023px){.topbar-mid{display:none;}}
@media (max-width:640px){.topbar-left .txt{display:none;}}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(11,13,12,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.nav-wrap{
  height:76px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border:1px solid var(--c-primary);
  border-radius:8px;
  color:var(--c-primary);
  font-family:var(--font-num);
  font-size:17px;
  font-weight:700;
  letter-spacing:-.02em;
}
.brand-name{
  font-size:19px;
  font-weight:900;
  letter-spacing:-.01em;
  color:var(--c-text);
  line-height:1.2;
}
.brand-sub{
  display:block;
  font-size:11.5px;
  letter-spacing:.14em;
  color:var(--c-muted);
  font-weight:400;
  line-height:1.4;
}
.main-nav{display:flex;align-items:center;gap:4px;}
.main-nav a{
  position:relative;
  display:block;
  padding:0 14px;
  line-height:76px;
  font-size:14.5px;
  color:#cbd2ce;
  font-weight:500;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:20px;
  height:2px;
  background:var(--c-primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.main-nav a:hover{color:var(--c-text);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--c-primary);}
.main-nav a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{
  width:40px;height:40px;
  display:grid;place-items:center;
  border:1px solid var(--c-line);
  border-radius:var(--radius-pill);
  background:transparent;
  color:#cbd2ce;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.nav-search:hover{border-color:var(--c-line-strong);color:var(--c-primary);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--c-line);
  border-radius:8px;
  background:transparent;
  color:var(--c-text);
  font-size:17px;
}
@media (max-width:1023px){
  .main-nav{display:none;}
  .nav-toggle{display:grid;place-items:center;}
}
/* 移动端抽屉 */
.mobile-drawer{
  display:none;
  border-top:1px solid var(--c-line);
  background:#0E1211;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:block;
  padding:0 24px;
  line-height:64px;
  font-size:20px;
  font-weight:500;
  border-bottom:1px solid var(--c-line);
  color:#d5dbd7;
}
.mobile-drawer a.active{color:var(--c-primary);}
.mobile-drawer .drawer-cta{padding:20px 24px 28px;border-bottom:0;}
@media (min-width:1024px){.mobile-drawer{display:none !important;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  height:50px;
  padding:0 30px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  border:1px solid transparent;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease),filter var(--dur) var(--ease);
  white-space:nowrap;
}
.btn i{transition:transform var(--dur) var(--ease);font-size:13px;}
.btn-primary{background:var(--c-primary);color:#0B0D0C;}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);color:#0B0D0C;}
.btn-primary:hover i{transform:translateX(3px);}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,.24);
  color:var(--c-text);
}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.06);color:#fff;}
.btn-ghost:hover i{transform:translateX(3px);}
.btn-sm{height:42px;padding:0 22px;font-size:13.5px;}
.btn-dark{background:#0B0D0C;color:#EDEFEC;border-color:#0B0D0C;}
.btn-dark:hover{color:#C6F53C;transform:translateY(-1px);}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:#cbd2ce;
}
.text-link i{transition:transform var(--dur) var(--ease);font-size:12px;}
.text-link:hover{color:var(--c-primary);}
.text-link:hover i{transform:translateX(4px);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:3px;
  font-size:11.5px;
  letter-spacing:.06em;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
}
.badge-outline{border:1px solid rgba(198,245,60,.55);color:var(--c-primary);}
.badge-accent{background:var(--c-accent);color:#fff;}
.badge-muted{background:rgba(255,255,255,.08);color:#c2c9c5;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:78vh;
  display:flex;
  align-items:flex-end;
  overflow:hidden;
  border-bottom:1px solid var(--c-line);
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  transform:scale(1.04);
  animation:heroZoom 18s var(--ease) forwards;
}
@keyframes heroZoom{to{transform:scale(1);}}
.hero-mask{
  position:absolute;
  inset:0;
  background:
    linear-gradient(90deg,rgba(11,13,12,.94) 0%,rgba(11,13,12,.78) 42%,rgba(11,13,12,.32) 100%),
    linear-gradient(180deg,rgba(11,13,12,.55) 0%,rgba(11,13,12,.2) 40%,rgba(11,13,12,.95) 100%);
}
.hero-inner{
  position:relative;
  z-index:2;
  width:100%;
  padding-top:clamp(90px,14vh,160px);
  padding-bottom:clamp(48px,7vh,84px);
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12.5px;
  letter-spacing:.16em;
  color:var(--c-primary);
  margin-bottom:22px;
}
.hero-eyebrow span{width:34px;height:1px;background:var(--c-primary);display:inline-block;}
.hero h1{
  font-size:clamp(34px,6vw,82px);
  font-weight:900;
  line-height:1.06;
  letter-spacing:-.02em;
  max-width:16em;
  margin-bottom:22px;
  animation:fadeUp 620ms var(--ease) both;
}
.hero h1 em{
  font-style:normal;
  color:var(--c-primary);
}
.hero-sub{
  font-size:clamp(15.5px,1.5vw,18px);
  line-height:1.85;
  color:#d2d8d4;
  max-width:34em;
  margin-bottom:36px;
  animation:fadeUp 620ms var(--ease) 120ms both;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  animation:fadeUp 620ms var(--ease) 220ms both;
}
@keyframes fadeUp{
  from{opacity:0;transform:translateY(12px);}
  to{opacity:1;transform:translateY(0);}
}
.hero-info{
  position:absolute;
  right:24px;
  bottom:clamp(48px,7vh,84px);
  z-index:3;
  width:min(320px,42vw);
  padding:18px 20px;
  background:rgba(11,13,12,.55);
  border:1px solid var(--c-line);
  border-radius:var(--radius-panel);
  backdrop-filter:blur(12px);
}
.hero-info .hi-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:#c8cfcb;
  padding:7px 0;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.hero-info .hi-row:last-child{border-bottom:0;}
.hero-info .hi-row b{color:var(--c-text);font-weight:700;}
.hero-info .hot{color:var(--c-accent);font-weight:700;}
.hero-progress{
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:rgba(255,255,255,.08);
  z-index:4;
}
.hero-progress i{display:block;height:100%;width:62%;background:var(--c-primary);}
@media (max-width:1023px){
  .hero{min-height:60vh;}
  .hero-info{position:static;width:100%;margin-top:32px;}
}
@media (max-width:640px){
  .hero-inner{padding-top:64px;}
  .hero-actions .btn{width:100%;}
  .hero-progress i{width:44%;}
}

/* ---------- 通用板块 ---------- */
.section{padding:var(--gap-section) 0;}
.section-tight{padding:clamp(56px,6vw,90px) 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  padding-bottom:20px;
  border-bottom:1px solid rgba(255,255,255,.08);
  margin-bottom:clamp(28px,3.4vw,48px);
}
.section-head h2{
  font-size:clamp(26px,3.2vw,42px);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.14;
}
.section-head .sh-desc{
  font-size:14px;
  color:var(--c-muted);
  margin-top:10px;
  max-width:34em;
  line-height:1.8;
}
.section-head .sh-actions{display:flex;align-items:center;gap:18px;flex-shrink:0;}
@media (max-width:640px){
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;}
}

/* ---------- 卖点参数卡 ---------- */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.feature-card{
  background:var(--c-ink-2);
  border:1px solid var(--c-line);
  border-radius:var(--radius-panel);
  padding:26px 24px 28px;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.feature-card:hover{transform:translateY(-4px);border-color:var(--c-line-strong);}
.feature-card .fc-icon{
  width:42px;height:42px;
  display:grid;place-items:center;
  border-radius:8px;
  border:1px solid rgba(198,245,60,.4);
  color:var(--c-primary);
  font-size:16px;
  margin-bottom:20px;
}
.feature-card h3{font-size:19px;font-weight:700;margin-bottom:10px;}
.feature-card p{font-size:14.5px;line-height:1.85;color:var(--c-muted);}
.feature-card .fc-meta{
  margin-top:18px;
  font-family:var(--font-num);
  font-size:12.5px;
  letter-spacing:.08em;
  color:#7d857f;
}
@media (max-width:1023px){.feature-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:600px){.feature-grid{grid-template-columns:1fr;}}

/* ---------- 横滑片库 ---------- */
.rail{position:relative;}
.rail-track{
  display:flex;
  gap:20px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  scroll-behavior:smooth;
  padding-bottom:8px;
  scrollbar-width:none;
}
.rail-track::-webkit-scrollbar{display:none;}
.rail-card{
  flex:0 0 auto;
  width:clamp(220px,26vw,320px);
  scroll-snap-align:start;
  background:var(--c-ink-2);
  border:1px solid var(--c-line);
  border-radius:var(--radius-panel);
  overflow:hidden;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.rail-card:hover{transform:translateY(-4px);border-color:var(--c-line-strong);}
.rail-thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:#0E1211;
}
.rail-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform 420ms var(--ease);}
.rail-card:hover .rail-thumb img{transform:scale(1.04);}
.rail-thumb .play{
  position:absolute;
  right:12px;top:12px;
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:50%;
  background:rgba(11,13,12,.6);
  border:1px solid rgba(198,245,60,.6);
  color:var(--c-primary);
  font-size:12px;
  opacity:0;
  transform:translateY(-6px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.rail-card:hover .rail-thumb .play{opacity:1;transform:translateY(0);}
.rail-body{padding:18px 20px 20px;}
.rail-body h3{
  font-size:16.5px;
  font-weight:700;
  line-height:1.5;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  margin-bottom:12px;
}
.rail-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--c-muted);letter-spacing:.05em;}
.rail-arrows{display:flex;gap:10px;}
.rail-arrow{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--c-line);
  background:transparent;
  color:#d4dad6;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.rail-arrow:hover{border-color:var(--c-line-strong);color:var(--c-primary);}
.rail-arrow[disabled]{opacity:.4;cursor:default;}
@media (max-width:1023px){.rail-arrows{display:none;}}

/* ---------- 排行 ---------- */
.rank-grid{display:grid;grid-template-columns:5fr 7fr;gap:clamp(24px,3vw,44px);align-items:start;}
.rank-hero{
  position:relative;
  border:1px solid var(--c-line);
  border-radius:var(--radius-panel);
  overflow:hidden;
  background:var(--c-ink-2);
}
.rank-hero img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:0;}
.rank-hero .rh-body{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:22px 22px 24px;
  background:linear-gradient(180deg,rgba(11,13,12,0) 0%,rgba(11,13,12,.92) 60%);
}
.rank-hero h3{font-size:21px;font-weight:900;margin:12px 0 8px;line-height:1.35;}
.rank-hero p{font-size:13.5px;color:#bcc4bf;line-height:1.8;}
.rank-list{border-top:1px solid rgba(255,255,255,.08);}
.rank-item{
  display:grid;
  grid-template-columns:64px 1fr auto;
  align-items:center;
  gap:18px;
  padding:18px 4px;
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:transform var(--dur) var(--ease);
}
.rank-item:hover{transform:translateX(2px);}
.rank-no{
  width:46px;height:46px;
  display:grid;place-items:center;
  border:1px solid rgba(198,245,60,.45);
  border-radius:4px;
  font-family:var(--font-num);
  font-size:17px;
  font-weight:700;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
}
.rank-item .ri-title{font-size:16.5px;font-weight:700;line-height:1.5;transition:color var(--dur) var(--ease);}
.rank-item:hover .ri-title{color:var(--c-primary);}
.rank-item .ri-sub{font-size:12.5px;color:var(--c-muted);letter-spacing:.05em;margin-top:6px;}
.rank-item .ri-heat{
  font-family:var(--font-num);
  font-size:13px;
  color:var(--c-accent);
  font-variant-numeric:tabular-nums;
  white-space:nowrap;
}
@media (max-width:1023px){
  .rank-grid{grid-template-columns:1fr;}
  .rank-hero img{aspect-ratio:16/9;}
}
@media (max-width:520px){
  .rank-item{grid-template-columns:52px 1fr;gap:14px;}
  .rank-item .ri-heat{display:none;}
}

/* ---------- 分类导览 ---------- */
.cat-grid{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:20px;
}
.cat-card{
  position:relative;
  min-height:260px;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  padding:26px 24px 28px;
  border:1px solid var(--c-line);
  border-radius:var(--radius-panel);
  overflow:hidden;
  background:#101413;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.cat-card::before{
  content:"";
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:.42;
  transition:opacity var(--dur) var(--ease),transform 520ms var(--ease);
}
.cat-card::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(11,13,12,.35) 0%,rgba(11,13,12,.92) 72%);
}
.cat-card:hover{transform:translateY(-4px);border-color:var(--c-line-strong);}
.cat-card:hover::before{opacity:.6;transform:scale(1.04);}
.cat-card > *{position:relative;z-index:2;}
.cat-card h3{font-size:22px;font-weight:900;line-height:1.3;margin-bottom:10px;}
.cat-card p{font-size:14px;color:#c3cbc6;line-height:1.8;margin-bottom:16px;}
.cat-card .cc-count{
  font-family:var(--font-num);
  font-size:12.5px;
  letter-spacing:.08em;
  color:var(--c-primary);
}
.cat-card.span-3{grid-column:span 3;}
.cat-card.span-2{grid-column:span 2;}
@media (max-width:1023px){
  .cat-grid{grid-template-columns:repeat(2,1fr);}
  .cat-card.span-3,.cat-card.span-2{grid-column:span 1;}
  .cat-card{min-height:220px;}
}
@media (max-width:600px){
  .cat-grid{grid-template-columns:1fr;}
}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:6fr 6fr;gap:clamp(24px,3vw,40px);align-items:start;}
.news-feature{
  display:block;
  background:var(--c-ink-2);
  border:1px solid var(--c-line);
  border-radius:var(--radius-panel);
  overflow:hidden;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.news-feature:hover{transform:translateY(-4px);border-color:var(--c-line-strong);}
.news-feature .nf-thumb{aspect-ratio:16/9;overflow:hidden;background:#0E1211;}
.news-feature .nf-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform 520ms var(--ease);}
.news-feature:hover .nf-thumb img{transform:scale(1.04);}
.news-feature .nf-body{padding:24px 26px 28px;}
.news-feature h3{font-size:22px;font-weight:900;line-height:1.42;margin:14px 0 12px;}
.news-feature p{
  font-size:15px;
  color:var(--c-muted);
  line-height:1.85;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-feature .nf-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-top:20px;
  padding-top:16px;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:12.5px;
  color:#8b938d;
  letter-spacing:.05em;
}
.news-list{border-top:1px solid rgba(255,255,255,.08);}
.news-item{
  display:block;
  padding:20px 4px;
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:transform var(--dur) var(--ease);
}
.news-item:hover{transform:translateX(2px);}
.news-item .ni-time{
  font-family:var(--font-num);
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--c-accent);
  font-variant-numeric:tabular-nums;
}
.news-item .ni-title{
  font-size:16px;
  font-weight:700;
  line-height:1.6;
  margin-top:8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color var(--dur) var(--ease);
}
.news-item:hover .ni-title{color:var(--c-primary);}
.news-item .ni-cat{font-size:12px;color:#8b938d;margin-top:8px;letter-spacing:.05em;}
.news-empty{
  min-height:220px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:16px;
  border:1px dashed var(--c-line);
  border-radius:var(--radius-panel);
  text-align:center;
  padding:32px 24px;
}
.news-empty i{font-size:26px;color:#6f7772;}
.news-empty p{font-size:14px;color:var(--c-muted);}
@media (max-width:1023px){.news-grid{grid-template-columns:1fr;}}

/* ---------- 浅色数据条 ---------- */
.band-paper{
  background:var(--c-paper);
  color:#14181A;
}
.band-paper .section-head{border-bottom-color:rgba(20,24,26,.14);}
.band-paper .section-head h2{color:#14181A;}
.band-paper .section-head .sh-desc{color:#5b625e;}
.stats-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
}
.stat-cell{
  padding:8px 28px;
  border-left:1px solid rgba(20,24,26,.14);
}
.stat-cell:first-child{border-left:0;padding-left:0;}
.stat-cell .st-num{
  font-family:var(--font-num);
  font-size:clamp(30px,3.6vw,46px);
  font-weight:700;
  letter-spacing:-.02em;
  color:#14181A;
  font-variant-numeric:tabular-nums;
  line-height:1.1;
}
.stat-cell .st-num span{font-size:.5em;margin-left:4px;font-weight:600;}
.stat-cell .st-label{font-size:13.5px;color:#5b625e;margin-top:10px;letter-spacing:.04em;}
@media (max-width:1023px){
  .stats-row{grid-template-columns:repeat(2,1fr);gap:28px 0;}
  .stat-cell:nth-child(3){border-left:0;padding-left:0;}
}
@media (max-width:520px){
  .stats-row{grid-template-columns:1fr;}
  .stat-cell{border-left:0;padding:0;}
}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid rgba(255,255,255,.08);}
.faq-item{border-bottom:1px solid rgba(255,255,255,.08);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:64px;
  padding:20px 4px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:16px;
  font-weight:700;
  color:var(--c-text);
  transition:color var(--dur) var(--ease);
}
.faq-q:hover{color:var(--c-primary);}
.faq-q i{
  flex-shrink:0;
  font-size:13px;
  color:var(--c-primary);
  transition:transform var(--dur) var(--ease);
}
.faq-item.open .faq-q i{transform:rotate(180deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 380ms var(--ease);
}
.faq-a p{
  font-size:15px;
  line-height:1.85;
  color:var(--c-muted);
  padding:0 4px 24px;
  max-width:60em;
}

/* ---------- 收尾 CTA ---------- */
.cta-band{
  background:var(--c-paper);
  color:#14181A;
  padding:clamp(72px,9vw,130px) 0;
  text-align:center;
}
.cta-band h2{
  font-size:clamp(28px,4.2vw,54px);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.16;
  margin-bottom:20px;
}
.cta-band p{
  font-size:16px;
  line-height:1.9;
  color:#4d5450;
  max-width:38em;
  margin:0 auto 34px;
}
.cta-band .cta-note{
  font-size:13px;
  color:#717874;
  margin-top:20px;
  letter-spacing:.04em;
}
.cta-band .btn-primary{background:#0B0D0C;color:#C6F53C;}
.cta-band .btn-primary:hover{color:#C6F53C;filter:none;background:#161b19;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#08090A;
  border-top:1px solid rgba(255,255,255,.08);
  padding:clamp(56px,6vw,88px) 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:clamp(24px,3vw,48px);
  padding-bottom:clamp(40px,4vw,64px);
}
.footer-col h4{
  font-size:12px;
  letter-spacing:.14em;
  color:#7d857f;
  font-weight:600;
  margin-bottom:20px;
  text-transform:uppercase;
}
.footer-col p{font-size:14px;line-height:1.9;color:#9aa29c;max-width:30em;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-links li{margin-bottom:2px;}
.footer-links a{font-size:14px;line-height:2.1;color:#c0c8c3;}
.footer-links a:hover{color:var(--c-primary);}
.sub-form{display:flex;gap:10px;margin-top:6px;}
.sub-form input{
  flex:1;
  height:48px;
  padding:0 16px;
  background:#121514;
  border:1px solid var(--c-line);
  border-radius:6px;
  color:var(--c-text);
  font-size:14px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.sub-form input::placeholder{color:var(--c-muted);}
.sub-form input:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 2px rgba(198,245,60,.22);
}
.sub-form .btn{height:48px;padding:0 22px;font-size:14px;}
.footer-note{font-size:12.5px;color:#6f7772;margin-top:12px;line-height:1.8;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:#7d857f;
}
.footer-bottom .fb-right{display:flex;align-items:center;gap:18px;}
.to-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:#c0c8c3;
  background:transparent;
  border:1px solid var(--c-line);
  border-radius:var(--radius-pill);
  height:38px;
  padding:0 18px;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.to-top:hover{border-color:var(--c-primary);color:var(--c-primary);}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:600px){
  .footer-grid{grid-template-columns:1fr;}
  .sub-form{flex-direction:column;}
  .sub-form .btn{width:100%;}
}

/* ---------- 相关通用 ---------- */
.muted{color:var(--c-muted);}
.divider{height:1px;background:rgba(255,255,255,.08);}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
}

/* roulang page: article */
:root{
  --c-ink:#0B0D0C;
  --c-ink-2:#141816;
  --c-ink-3:#1B211F;
  --c-line:rgba(255,255,255,.10);
  --c-line-strong:rgba(255,255,255,.22);
  --c-primary:#C6F53C;
  --c-accent:#FF5A28;
  --c-paper:#F3F1EA;
  --c-paper-ink:#14181A;
  --c-text:#EDEFEC;
  --c-muted:#98A09B;
  --r-card:6px;
  --r-img:4px;
  --r-pill:999px;
  --ease:cubic-bezier(.22,.8,.2,1);
  --dur:320ms;
  --section:clamp(56px,7vw,104px);
  --container:1320px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-ink);
  color:var(--c-text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),background-color var(--dur) var(--ease),opacity var(--dur) var(--ease);}
a:hover{color:var(--c-primary);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
ul,ol{padding-left:0;margin:0;list-style:none;}
h1,h2,h3,h4,h5{margin:0;font-weight:900;letter-spacing:-.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media(min-width:1440px){
  .container{max-width:1400px;padding:0 32px;}
}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(11,13,12,.92);
  border-bottom:1px solid var(--c-line);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:76px;
  padding:10px 0;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.brand:hover{color:var(--c-text);}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border:1px solid var(--c-primary);
  border-radius:8px;
  color:var(--c-primary);
  font-weight:900;
  font-size:18px;
  line-height:1;
  flex:0 0 auto;
}
.brand-name{
  display:flex;
  flex-direction:column;
  font-size:18px;
  font-weight:900;
  line-height:1.25;
  letter-spacing:.01em;
}
.brand-sub{
  font-size:11.5px;
  font-weight:400;
  letter-spacing:.08em;
  color:var(--c-muted);
  line-height:1.6;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.main-nav a{
  position:relative;
  padding:10px 14px;
  font-size:14.5px;
  color:#CBD1CD;
  white-space:nowrap;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  background:var(--c-primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.main-nav a:hover{color:var(--c-text);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--c-primary);}
.main-nav a.active::after{transform:scaleX(1);}
.nav-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.nav-search{
  width:42px;height:42px;
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  display:grid;place-items:center;
  color:var(--c-muted);
  transition:all var(--dur) var(--ease);
}
.nav-search:hover{color:var(--c-primary);border-color:var(--c-line-strong);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--c-line);
  border-radius:8px;
  color:var(--c-text);
}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--c-line);
  background:#0A0C0B;
  padding:8px 24px 24px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a{
  display:block;
  padding:16px 4px;
  border-bottom:1px solid rgba(255,255,255,.08);
  font-size:18px;
  color:#D6DBD7;
}
.mobile-drawer a.active{color:var(--c-primary);}
.drawer-cta{padding-top:18px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  height:50px;
  padding:0 30px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  border:1px solid transparent;
  transition:all var(--dur) var(--ease);
}
.btn i{transition:transform var(--dur) var(--ease);}
.btn:hover i{transform:translateX(3px);}
.btn-primary{background:var(--c-primary);color:#0B0D0C;}
.btn-primary:hover{background:#D4FF51;color:#0B0D0C;transform:translateY(-1px);}
.btn-ghost{border-color:rgba(255,255,255,.24);color:var(--c-text);}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.06);color:#fff;}
.btn-dark{background:#0B0D0C;color:#F3F1EA;}
.btn-dark:hover{background:#1B211F;color:var(--c-primary);transform:translateY(-1px);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}

/* ---------- badges & meta ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:3px;
  font-size:11.5px;
  letter-spacing:.06em;
  line-height:1;
  white-space:nowrap;
}
.badge-line{border:1px solid rgba(198,245,60,.55);color:var(--c-primary);}
.badge-accent{background:var(--c-accent);color:#fff;}
.badge-mute{background:rgba(255,255,255,.08);color:#C3C9C5;}

/* ---------- breadcrumb ---------- */
.crumb-bar{
  border-bottom:1px solid var(--c-line);
  background:#0E1110;
}
.crumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  padding:14px 0;
  font-size:13.5px;
  color:var(--c-muted);
}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:rgba(255,255,255,.24);}
.crumb .cur{color:var(--c-text);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- article head ---------- */
.article-head{
  padding:clamp(36px,5vw,64px) 0 0;
}
.article-head .kicker{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:18px;
  font-size:12().5px;
  color:var(--c-muted);
  letter-spacing:.06em;
}
.article-head h1{
  font-size:clamp(28px,4.2vw,48px);
  line-height:1.18;
  font-weight:900;
  letter-spacing:-.02em;
  max-width:22ch;
}
.meta-row{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:18px;
  margin-top:26px;
  padding-top:22px;
  border-top:1px solid var(--c-line);
  font-size:13.5px;
  color:var(--c-muted);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.28);}
.meta-row .stamp{color:var(--c-accent);}
.share-group{margin-left:auto;display:flex;align-items:center;gap:10px;}
.share-group span{font-size:12.5px;letter-spacing:.06em;color:var(--c-muted);}
.share-group a{
  width:38px;height:38px;
  display:grid;place-items:center;
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  color:var(--c-muted);
}
.share-group a:hover{color:var(--c-primary);border-color:var(--c-line-strong);}

/* ---------- cover ---------- */
.cover-box{
  margin-top:clamp(28px,4vw,44px);
  border:1px solid var(--c-line);
  border-radius:var(--r-img);
  overflow:hidden;
  background:var(--c-ink-2);
}
.cover-box img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform 420ms var(--ease);
}
.cover-box:hover img{transform:scale(1.02);}

/* ---------- reading area ---------- */
.reading-wrap{
  padding:clamp(36px,5vw,72px) 0 var(--section);
}
.paper{
  background:var(--c-paper);
  color:var(--c-paper-ink);
  border-radius:var(--r-card);
  padding:clamp(26px,4.4vw,60px);
  box-shadow:0 18px 40px rgba(11,13,12,.08);
}
.paper-inner{max-width:740px;margin:0 auto;}
.paper a{color:#124e2a;text-decoration:underline;text-underline-offset:3px;}
.paper a:hover{color:#0B0D0C;background:rgba(198,245,60,.5);}
.paper p{margin:0 0 1.15em;font-size:16.5px;line-height:1.9;letter-spacing:.012em;}
.paper h2{
  position:relative;
  margin:2.1em 0 .85em;
  padding-left:16px;
  font-size:clamp(21px,2.4vw,28px);
  line-height:1.35;
  color:#0F1416;
}
.paper h2::before{
  content:"";
  position:absolute;
  left:0;top:.18em;
  width:3px;height:1.05em;
  background:var(--c-primary);
  border-radius:2px;
}
.paper h2:first-child{margin-top:0;}
.paper h3{
  margin:1.7em 0 .7em;
  font-size:18.5px;
  line-height:1.5;
  color:#0F1416;
}
.paper h4{
  margin:1.5em 0 .6em;
  font-size:16.5px;
  color:#0F1416;
}
.paper ul,.paper ol{margin:0 0 1.25em;padding-left:0;}
.paper ul li,.paper ol li{
  position:relative;
  padding-left:22px;
  margin-bottom:.7em;
  font-size:16.5px;
  line-height:1.85;
}
.paper ul li::before{
  content:"";
  position:absolute;
  left:2px;top:.72em;
  width:8px;height:8px;
  background:var(--c-primary);
  border-radius:1px;
}
.paper ol{counter-reset:od; }
.paper ol li{counter-increment:od;}
.paper ol li::before{
  content:counter(od,decimal-leading-zero);
  position:absolute;
  left:0;top:.05em;
  font-family:Inter,Oswald,system-ui,sans-serif;
  font-variant-numeric:tabular-nums;
  font-size:13px;
  font-weight:700;
  color:#5C6A62;
  letter-spacing:.04em;
}
.paper blockquote{
  margin:1.6em 0;
  padding:18px 22px;
  border-left:2px solid var(--c-primary);
  background:rgba(255,255,255,.72);
  border-radius:0 var(--r-img) var(--r-img) 0;
  color:#28312D;
}
.paper blockquote p:last-child{margin-bottom:0;}
.paper img{border-radius:var(--r-img);margin:1.4em 0 .6em;}
.paper figure{margin:1.6em 0;}
.paper figcaption{
  font-size:13px;
  color:#6D7773;
  text-align:center;
  line-height:1.7;
  margin-top:8px;
}
.paper .table-scroll{overflow-x:auto;margin:1.6em 0;border:1px solid rgba(11,13,12,.14);border-radius:var(--r-img);}
.paper table{width:100%;border-collapse:collapse;min-width:520px;font-size:14.5px;}
.paper thead th{
  background:#E7E4DA;
  text-align:left;
  padding:12px 14px;
  font-weight:700;
  font-size:13.5px;
  letter-spacing:.04em;
  color:#1A211E;
  border-bottom:1px solid rgba(11,13,12,.14);
}
.paper tbody td{
  padding:12px 14px;
  border-bottom:1px solid rgba(11,13,12,.08);
  color:#2B3330;
  line-height:1.75;
}
.paper tbody tr:last-child td{border-bottom:0;}
.paper code{
  background:#141816;
  color:#C6F53C;
  padding:2px 6px;
  border-radius:3px;
  font-size:14px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.paper pre{
  background:#141816;
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-card);
  padding:18px 20px;
  overflow-x:auto;
  margin:1.6em 0;
}
.paper pre code{background:none;padding:0;color:#DCE3DE;}
.paper hr{border:0;border-top:1px solid rgba(11,13,12,.14);margin:2.2em 0;}

/* empty state */
.empty-state{
  max-width:560px;
  margin:0 auto;
  text-align:center;
  padding:48px 20px;
  color:var(--c-muted);
}
.empty-state .ico{
  width:64px;height:64px;
  margin:0 auto 20px;
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  display:grid;place-items:center;
  color:var(--c-primary);
  font-size:22px;
}
.empty-state p{font-size:16px;color:var(--c-muted);margin-bottom:22px;}

/* ---------- tags + back ---------- */
.post-foot{
  padding-top:34px;
  margin-top:34px;
  border-top:1px solid var(--c-line);
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:14px;
}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;
  align-items:center;
  height:28px;
  padding:0 12px;
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  font-size:12.5px;
  color:#BFC6C1;
  letter-spacing:.03em;
}
.tag:hover{color:var(--c-primary);border-color:rgba(198,245,60,.5);}
.back-link{margin-left:auto;font-size:14px;color:var(--c-muted);display:inline-flex;align-items:center;gap:8px;}
.back-link:hover{color:var(--c-primary);}

/* ---------- related ---------- */
.section{padding:var(--section) 0;border-top:1px solid var(--c-line);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  padding-bottom:20px;
  margin-bottom:34px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.section-head h2{font-size:clamp(24px,2.9vw,38px);line-height:1.2;}
.section-head p{margin-top:10px;font-size:14.5px;color:var(--c-muted);}
.section-head .link-more{
  font-size:14px;
  color:var(--c-primary);
  display:inline-flex;
  align-items:center;
  gap:8px;
  white-space:nowrap;
}
.section-head .link-more i{transition:transform var(--dur) var(--ease);}
.section-head .link-more:hover i{transform:translateX(4px);}
.rel-list{border-top:1px solid rgba(255,255,255,.08);}
.rel-item{
  display:flex;
  align-items:center;
  gap:24px;
  padding:22px 4px;
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:transform var(--dur) var(--ease);
}
.rel-item:hover{transform:translateX(2px);}
.rel-item .idx{
  font-family:Inter,Oswald,system-ui,sans-serif;
  font-variant-numeric:tabular-nums;
  font-size:13px;
  letter-spacing:.08em;
  color:var(--c-primary);
  border:1px solid rgba(198,245,60,.35);
  border-radius:3px;
  padding:4px 8px;
  flex:0 0 auto;
}
.rel-item .rel-body{flex:1 1 auto;min-width:0;}
.rel-item h3{font-size:17.5px;line-height:1.55;color:var(--c-text);font-weight:700;}
.rel-item:hover h3{color:var(--c-primary);}
.rel-item .rel-meta{margin-top:6px;font-size:12.5px;color:var(--c-muted);letter-spacing:.04em;}
.rel-item .go{color:var(--c-muted);flex:0 0 auto;}
.rel-item:hover .go{color:var(--c-primary);}

/* ---------- cta ---------- */
.cta-band{
  background:var(--c-paper);
  color:var(--c-paper-ink);
  border-top:1px solid rgba(255,255,255,.08);
}
.cta-inner{
  padding:clamp(64px,8vw,110px) 0;
  text-align:center;
}
.cta-inner h2{
  font-size:clamp(26px,3.6vw,46px);
  line-height:1.2;
  color:#0F1416;
  max-width:24ch;
  margin:0 auto;
}
.cta-inner p{
  margin:18px auto 32px;
  max-width:52ch;
  font-size:16px;
  line-height:1.85;
  color:#4A5350;
}
.cta-note{margin-top:16px;font-size:13px;color:#6D7773;}

/* ---------- footer ---------- */
.site-footer{
  background:#08090A;
  border-top:1px solid rgba(255,255,255,.08);
  padding-top:clamp(48px,6vw,80px);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:36px;
  padding-bottom:52px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-col h4{
  font-size:12px;
  letter-spacing:.14em;
  color:#8E9791;
  font-weight:700;
  margin-bottom:16px;
  text-transform:uppercase;
}
.footer-col p{font-size:14px;line-height:1.9;color:var(--c-muted);}
.footer-links li{margin-bottom:2px;}
.footer-links a{font-size:14px;line-height:2.1;color:#B8BFBA;}
.footer-links a:hover{color:var(--c-primary);}
.sub-form{display:flex;gap:10px;flex-wrap:wrap;}
.sub-form input{
  flex:1 1 160px;
  height:48px;
  padding:0 14px;
  background:#121514;
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  color:var(--c-text);
  font-size:14px;
  transition:all var(--dur) var(--ease);
}
.sub-form input::placeholder{color:var(--c-muted);}
.sub-form input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(198,245,60,.16);}
.sub-form .btn{height:48px;padding:0 22px;font-size:14px;}
.footer-note{margin-top:12px;font-size:12.5px;color:#727A76;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:14px;
  padding:22px 0 28px;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;
  color:#7C8480;
}
.fb-right{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.to-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:#B8BFBA;
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  padding:8px 16px;
  transition:all var(--dur) var(--ease);
}
.to-top:hover{color:var(--c-primary);border-color:rgba(198,245,60,.5);}

/* ---------- responsive ---------- */
@media(max-width:1180px){
  .main-nav a{padding:10px 10px;font-size:14px;}
  .nav-wrap{gap:18px;}
}
@media(max-width:1023px){
  .main-nav{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .nav-search{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media(max-width:767px){
  body{font-size:15.5px;}
  .nav-wrap{min-height:66px;gap:12px;}
  .brand-name{font-size:16px;}
  .brand-sub{font-size:11px;}
  .nav-actions .btn-sm{display:none;}
  .container{padding:0 18px;}
  .crumb{font-size:12.5px;padding:12px 0;}
  .crumb .cur{max-width:100%;white-space:normal;}
  .meta-row{gap:12px;font-size:12.5px;}
  .share-group{margin-left:0;width:100%;}
  .paper{padding:22px 18px;}
  .paper p,.paper ul li,.paper ol li{font-size:15.8px;}
  .rel-item{gap:14px;padding:18px 2px;}
  .rel-item h3{font-size:16px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .article-head h1{max-width:100%;}
}
@media(max-width:520px){
  .btn{padding:0 22px;font-size:14.5px;height:48px;}
  .cta-inner p{font-size:15px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --c-ink:#0B0D0C;
  --c-ink-2:#141816;
  --c-ink-3:#1B211F;
  --c-line:rgba(255,255,255,0.10);
  --c-line-strong:rgba(255,255,255,0.22);
  --c-primary:#C6F53C;
  --c-accent:#FF5A28;
  --c-paper:#F3F1EA;
  --c-paper-text:#14181A;
  --c-text:#EDEFEC;
  --c-muted:#98A09B;
  --c-footer:#08090A;
  --r-card:6px;
  --r-img:4px;
  --r-pill:999px;
  --d-fast:240ms;
  --d-mid:340ms;
  --ease:cubic-bezier(.22,.8,.2,1);
  --container:1320px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-ink);
  color:var(--c-text);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.9;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;transition:color var(--d-fast) var(--ease);}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
@media (min-width:1440px){
  .container{max-width:1400px;padding:0 32px;}
}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,13,12,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--c-line);
  transition:background var(--d-mid) var(--ease),box-shadow var(--d-mid) var(--ease);
}
.site-header.is-scrolled{background:rgba(8,9,10,.94);box-shadow:0 10px 30px rgba(0,0,0,.35);}
.nav-wrap{display:flex;align-items:center;gap:28px;min-height:76px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--c-primary);border-radius:10px;
  color:var(--c-primary);font-weight:900;font-size:19px;letter-spacing:-.02em;
  background:linear-gradient(140deg,rgba(198,245,60,.14),rgba(198,245,60,0));
}
.brand-name{display:flex;flex-direction:column;line-height:1.2;font-weight:900;font-size:18px;letter-spacing:-.01em;color:#fff;}
.brand-sub{font-size:11.5px;font-weight:400;color:var(--c-muted);letter-spacing:.06em;margin-top:3px;}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:12px;flex:1;min-width:0;}
.main-nav a{
  position:relative;font-size:15px;color:var(--c-muted);padding:6px 0;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--c-primary);
  transform:scaleX(0);transform-origin:left;transition:transform var(--d-mid) var(--ease);
}
.main-nav a:hover{color:#fff;}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:#fff;}
.main-nav a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.nav-search{
  width:42px;height:42px;border:1px solid var(--c-line);border-radius:var(--r-pill);
  color:var(--c-muted);display:flex;align-items:center;justify-content:center;
  transition:border-color var(--d-fast) var(--ease),color var(--d-fast) var(--ease);
}
.nav-search:hover{border-color:var(--c-line-strong);color:var(--c-primary);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-pill);
  color:#fff;align-items:center;justify-content:center;font-size:17px;
}
.mobile-drawer{
  display:none;flex-direction:column;
  background:#0d0f0e;border-top:1px solid var(--c-line);
  padding:8px 24px 22px;
}
.mobile-drawer.is-open{display:flex;}
.mobile-drawer a{
  font-size:19px;color:var(--c-muted);padding:18px 0;border-bottom:1px solid var(--c-line);
}
.mobile-drawer a:hover,.mobile-drawer a.active{color:var(--c-primary);}
.drawer-cta{padding-top:20px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:50px;padding:0 30px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;letter-spacing:.01em;white-space:nowrap;
  transition:transform var(--d-fast) var(--ease),background var(--d-fast) var(--ease),border-color var(--d-fast) var(--ease),color var(--d-fast) var(--ease),filter var(--d-fast) var(--ease);
}
.btn i{font-size:13px;transition:transform var(--d-fast) var(--ease);}
.btn-primary{background:var(--c-primary);color:#0B0D0C;border:1px solid var(--c-primary);}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);}
.btn-primary:hover i{transform:translateX(3px);}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.24);}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.06);transform:translateY(-1px);}
.btn-dark{background:#0B0D0C;color:#fff;border:1px solid #0B0D0C;}
.btn-dark:hover{filter:brightness(1.15);transform:translateY(-1px);}
.btn-sm{height:44px;padding:0 22px;font-size:14px;}
.link-more{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--c-primary);
}
.link-more i{transition:transform var(--d-fast) var(--ease);font-size:12px;}
.link-more:hover i{transform:translateX(4px);}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:3px;
  font-size:11.5px;letter-spacing:.06em;font-weight:500;white-space:nowrap;
}
.badge-line{border:1px solid rgba(198,245,60,.5);color:var(--c-primary);}
.badge-accent{background:var(--c-accent);color:#fff;}
.badge-mute{background:rgba(255,255,255,.07);color:var(--c-muted);}
.badge-dark{background:rgba(11,13,12,.6);border:1px solid var(--c-line);color:var(--c-text);}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:9px;
  font-size:13.5px;color:var(--c-muted);padding:26px 0 0;
}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{opacity:.45;}
.breadcrumb .current{color:var(--c-text);}

/* ---------- Hero band ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  min-height:28vh;
  display:flex;align-items:flex-end;
  background-image:linear-gradient(90deg,rgba(8,9,10,.94) 0%,rgba(8,9,10,.72) 46%,rgba(8,9,10,.42) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--c-line);
}
.cat-hero::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:linear-gradient(90deg,var(--c-primary),rgba(198,245,60,0));
  opacity:.75;
}
.cat-hero-inner{padding:60px 0 54px;max-width:820px;}
.cat-hero h1{
  font-size:clamp(34px,5vw,68px);font-weight:900;line-height:1.06;letter-spacing:-.02em;color:#fff;
  margin:16px 0 14px;
}
.cat-hero p{font-size:16.5px;color:#cfd6d1;max-width:620px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}

/* ---------- Sections ---------- */
.section{padding:clamp(64px,8vw,116px) 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  padding-bottom:20px;margin-bottom:42px;border-bottom:1px solid rgba(255,255,255,.08);
}
.section-head h2{font-size:clamp(26px,3.2vw,42px);font-weight:900;line-height:1.12;letter-spacing:-.02em;}
.section-head p{font-size:14px;color:var(--c-muted);margin-top:10px;max-width:640px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;
  color:var(--c-primary);text-transform:uppercase;font-weight:700;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--c-primary);display:inline-block;}

/* ---------- Card grid ---------- */
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.card{
  background:var(--c-ink-2);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform var(--d-mid) var(--ease),border-color var(--d-mid) var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--c-line-strong);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0f1211;}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform 420ms var(--ease);}
.card:hover .card-media img{transform:scale(1.04);}
.card-media .badge{position:absolute;top:12px;left:12px;}
.play-dot{
  position:absolute;right:12px;top:12px;width:36px;height:36px;border-radius:50%;
  background:rgba(11,13,12,.72);border:1px solid var(--c-line-strong);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:12px;
  opacity:0;transform:translateY(-4px);
  transition:opacity var(--d-mid) var(--ease),transform var(--d-mid) var(--ease);
}
.card:hover .play-dot{opacity:1;transform:translateY(0);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{
  font-size:19px;font-weight:700;line-height:1.44;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  font-size:14px;line-height:1.78;color:var(--c-muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:auto;
  font-size:12px;letter-spacing:.08em;color:var(--c-muted);
}
.card-meta .time{color:var(--c-accent);font-weight:700;}
.card-link{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:700;color:var(--c-primary);}
.card-link i{font-size:11px;transition:transform var(--d-fast) var(--ease);}
.card:hover .card-link i{transform:translateX(4px);}

/* ---------- Time band ---------- */
.time-band{
  display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);
  background:var(--c-paper);color:var(--c-paper-text);border-radius:var(--r-card);
  padding:clamp(30px,4vw,54px);
}
.time-band .tb-item{padding-right:24px;border-right:1px solid rgba(20,24,26,.12);}
.time-band .tb-item:last-child{border-right:0;padding-right:0;}
.time-band .tb-num{
  font-size:clamp(28px,3vw,40px);font-weight:900;letter-spacing:-.02em;line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.time-band .tb-num span{color:var(--c-accent);}
.time-band h3{font-size:17px;font-weight:700;margin:12px 0 8px;}
.time-band p{font-size:14px;line-height:1.8;color:#4b5350;}

/* ---------- Stat bar ---------- */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
}
.stat-item{padding:34px 26px;border-right:1px solid var(--c-line);}
.stat-item:last-child{border-right:0;}
.stat-num{
  font-size:clamp(28px,3.4vw,44px);font-weight:900;letter-spacing:-.02em;line-height:1.05;
  font-variant-numeric:tabular-nums;
}
.stat-num em{font-style:normal;color:var(--c-primary);font-size:.55em;margin-left:4px;}
.stat-label{font-size:13px;color:var(--c-muted);margin-top:10px;letter-spacing:.04em;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:64px;padding:20px 0;text-align:left;font-size:16.5px;font-weight:700;color:var(--c-text);
  transition:color var(--d-fast) var(--ease);
}
.faq-q:hover{color:var(--c-primary);}
.faq-q i{font-size:14px;color:var(--c-muted);transition:transform var(--d-mid) var(--ease),color var(--d-fast) var(--ease);}
.faq-item.open .faq-q{color:var(--c-primary);}
.faq-item.open .faq-q i{transform:rotate(180deg);color:var(--c-primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height var(--d-mid) var(--ease);}
.faq-a p{padding:0 0 24px;font-size:15px;line-height:1.85;color:var(--c-muted);max-width:900px;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--c-paper);color:var(--c-paper-text);
  border-radius:var(--r-card);padding:clamp(44px,6vw,80px) clamp(24px,5vw,72px);
  display:flex;flex-direction:column;align-items:center;text-align:center;gap:20px;
}
.cta-band .eyebrow{color:#5d6a2b;}
.cta-band .eyebrow::before{background:#5d6a2b;}
.cta-band h2{font-size:clamp(26px,3.4vw,44px);font-weight:900;letter-spacing:-.02em;line-height:1.12;}
.cta-band p{font-size:15.5px;color:#4b5350;max-width:640px;}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:6px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-footer);border-top:1px solid rgba(255,255,255,.08);margin-top:clamp(64px,8vw,120px);}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;
  padding:64px 0 46px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-col p{font-size:14px;line-height:1.85;color:var(--c-muted);}
.footer-col h4{
  font-size:12px;letter-spacing:.14em;color:#fff;margin-bottom:18px;font-weight:700;
}
.footer-links li{margin-bottom:2px;}
.footer-links a{font-size:14px;line-height:2.1;color:var(--c-muted);}
.footer-links a:hover{color:var(--c-primary);}
.sub-form{display:flex;gap:10px;flex-wrap:wrap;}
.sub-form input{
  flex:1;min-width:180px;height:48px;padding:0 16px;border-radius:var(--r-card);
  background:#121514;border:1px solid var(--c-line);color:#fff;font-size:14px;
  transition:border-color var(--d-fast) var(--ease),box-shadow var(--d-fast) var(--ease);
}
.sub-form input::placeholder{color:var(--c-muted);}
.sub-form input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(198,245,60,.22);}
.footer-note{font-size:12.5px;color:#6d7570;margin-top:12px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  padding:22px 0 34px;border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;color:#78807b;
}
.fb-right{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.to-top{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);
  padding:8px 14px;border:1px solid var(--c-line);border-radius:var(--r-pill);
  transition:color var(--d-fast) var(--ease),border-color var(--d-fast) var(--ease);
}
.to-top:hover{color:var(--c-primary);border-color:var(--c-line-strong);}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 420ms var(--ease),transform 420ms var(--ease);}
.reveal.on{opacity:1;transform:none;}

/* ---------- Responsive ---------- */
@media (max-width:1180px){
  .main-nav{gap:18px;}
  .main-nav a{font-size:14px;}
  .card-grid{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:1023px){
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .nav-actions .btn-sm{display:none;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .cat-hero-inner{padding:48px 0 42px;}
  .time-band{grid-template-columns:1fr;}
  .time-band .tb-item{border-right:0;border-bottom:1px solid rgba(20,24,26,.12);padding:0 0 22px;margin-bottom:22px;}
  .time-band .tb-item:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0;}
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .stat-item{border-bottom:1px solid var(--c-line);}
  .stat-item:nth-child(2n){border-right:0;}
  .stat-item:nth-child(3),.stat-item:nth-child(4){border-bottom:0;}
}
@media (max-width:560px){
  .container{padding:0 18px;}
  .card-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;}
  .cta-band .btn{width:100%;}
  .breadcrumb{font-size:12.5px;}
  .nav-wrap{min-height:68px;gap:16px;}
  .brand-sub{display:none;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --c-ink:#0B0D0C;
  --c-ink-2:#141816;
  --c-ink-3:#1B211F;
  --c-line:rgba(255,255,255,.10);
  --c-line-strong:rgba(255,255,255,.22);
  --c-primary:#C6F53C;
  --c-accent:#FF5A28;
  --c-paper:#F3F1EA;
  --c-paper-ink:#14181A;
  --c-text:#EDEFEC;
  --c-muted:#98A09B;
  --r-card:6px;
  --r-img:4px;
  --r-pill:999px;
  --container:1320px;
  --section-y:clamp(72px,9vw,140px);
  --ease:cubic-bezier(.22,.8,.2,1);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","Oswald",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-ink);
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.9;
  font-weight:400;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;transition:color .28s var(--ease),border-color .28s var(--ease),background-color .28s var(--ease);}
a:hover{color:var(--c-primary);}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:900;letter-spacing:-.02em;line-height:1.14;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:2px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){
  .container{max-width:1400px;padding:0 32px;}
}

/* ---------- 顶部信息条 ---------- */
.topbar{
  height:34px;
  background:#08090A;
  border-bottom:1px solid var(--c-line);
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--c-muted);
  display:flex;
  align-items:center;
}
.topbar .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.topbar-left{white-space:nowrap;font-family:var(--font-num);letter-spacing:.08em;}
.topbar-mid{
  flex:1;
  text-align:center;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  color:#7E8781;
}
.topbar-right{display:flex;align-items:center;gap:14px;white-space:nowrap;}
.topbar-right a{padding-left:14px;border-left:1px solid rgba(255,255,255,.12);}
.topbar-right a:first-child{border-left:0;padding-left:0;}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(11,13,12,.86);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),background-color .3s var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--c-line);
  background:rgba(11,13,12,.94);
}
.nav-wrap{
  height:76px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  background:var(--c-primary);
  color:#0B0D0C;
  font-weight:900;
  font-size:19px;
  border-radius:8px;
  flex-shrink:0;
}
.brand-name{
  display:flex;
  flex-direction:column;
  font-size:17px;
  font-weight:900;
  letter-spacing:.02em;
  line-height:1.2;
  color:var(--c-text);
}
.brand-sub{
  font-size:11px;
  font-weight:400;
  letter-spacing:.12em;
  color:var(--c-muted);
  margin-top:3px;
}
.main-nav{display:flex;align-items:center;gap:28px;}
.main-nav a{
  position:relative;
  font-size:14.5px;
  color:#C4CAC5;
  padding:26px 0;
  white-space:nowrap;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0;bottom:20px;
  width:0;height:2px;
  background:var(--c-primary);
  transition:width .3s var(--ease);
}
.main-nav a:hover{color:var(--c-text);}
.main-nav a:hover::after{width:100%;}
.main-nav a.active{color:var(--c-text);font-weight:700;}
.main-nav a.active::after{width:100%;}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{
  width:40px;height:40px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  background:transparent;
  color:#C4CAC5;
  display:grid;place-items:center;
  transition:all .28s var(--ease);
}
.nav-search:hover{border-color:var(--c-line-strong);color:var(--c-primary);}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  background:transparent;
  color:var(--c-text);
  font-size:16px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:50px;
  padding:0 30px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  border:1px solid transparent;
  transition:all .28s var(--ease);
  white-space:nowrap;
}
.btn i{transition:transform .28s var(--ease);}
.btn-primary{
  background:var(--c-primary);
  color:#0B0D0C;
  border-color:var(--c-primary);
}
.btn-primary:hover{
  background:#D3FA57;
  border-color:#D3FA57;
  color:#0B0D0C;
  transform:translateY(-1px);
}
.btn-primary:hover i{transform:translateX(3px);}
.btn-ghost{
  background:transparent;
  color:var(--c-text);
  border-color:rgba(255,255,255,.24);
}
.btn-ghost:hover{
  border-color:#fff;
  background:rgba(255,255,255,.06);
  color:var(--c-text);
}
.btn-dark{
  background:#14181A;
  color:#F3F1EA;
  border-color:#14181A;
}
.btn-dark:hover{background:#000;color:#fff;border-color:#000;transform:translateY(-1px);}
.btn-dark:hover i{transform:translateX(3px);}
.btn-sm{height:42px;padding:0 22px;font-size:14px;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--c-primary);
  font-weight:500;
}
.text-link i{transition:transform .28s var(--ease);}
.text-link:hover i{transform:translateX(4px);}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;
  min-height:30vh;
  display:flex;
  align-items:flex-end;
  padding:56px 0 44px;
  background-image:linear-gradient(180deg,rgba(11,13,12,.72) 0%,rgba(11,13,12,.92) 62%,var(--c-ink) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.cat-hero::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;
  height:2px;
  background:linear-gradient(90deg,var(--c-primary),rgba(198,245,60,0) 62%);
}
.cat-hero .cat-inner{position:relative;z-index:2;max-width:860px;}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  font-size:13.5px;
  color:var(--c-muted);
  margin-bottom:22px;
}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#4A5350;}
.crumb .now{color:var(--c-text);}
.cat-hero h1{
  font-size:clamp(32px,5vw,64px);
  line-height:1.06;
  margin-bottom:16px;
}
.cat-hero .cat-lead{
  font-size:16.5px;
  color:#C6CCC7;
  max-width:620px;
  margin-bottom:24px;
}
.cat-tags{display:flex;flex-wrap:wrap;gap:10px;}
.cat-tags span{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border:1px solid var(--c-line-strong);
  border-radius:3px;
  font-size:11.5px;
  letter-spacing:.06em;
  color:#CBD2CC;
}
.cat-tags span.hl{
  border-color:rgba(198,245,60,.5);
  color:var(--c-primary);
}

/* ---------- 主体布局 ---------- */
.page-main{padding:var(--section-y) 0 0;}
.layout{
  display:grid;
  grid-template-columns:minmax(0,320px) minmax(0,1fr);
  gap:64px;
  align-items:start;
}

/* 左侧目录 */
.toc{
  position:sticky;
  top:120px;
}
.toc-card{
  border:1px solid var(--c-line);
  background:var(--c-ink-2);
  border-radius:var(--r-card);
  padding:26px 24px;
}
.toc-title{
  font-size:12px;
  letter-spacing:.14em;
  color:var(--c-muted);
  margin-bottom:16px;
  font-weight:700;
}
.toc-list li + li{border-top:1px solid rgba(255,255,255,.07);}
.toc-list a{
  display:flex;
  align-items:baseline;
  gap:10px;
  padding:13px 0;
  font-size:14.5px;
  color:#BEC5C0;
}
.toc-list a:hover{color:var(--c-primary);padding-left:4px;}
.toc-list .idx{
  font-family:var(--font-num);
  font-size:11.5px;
  color:var(--c-primary);
  letter-spacing:.06em;
  flex-shrink:0;
}
.toc-note{
  margin-top:24px;
  padding-top:20px;
  border-top:1px solid var(--c-line);
  font-size:13px;
  color:var(--c-muted);
  line-height:1.8;
}
.toc-note strong{color:var(--c-text);font-weight:700;}

/* 右侧长文 */
.doc-head{
  padding-bottom:26px;
  border-bottom:1px solid var(--c-line);
  margin-bottom:36px;
}
.doc-head .eyebrow{
  font-size:11.5px;
  letter-spacing:.16em;
  color:var(--c-primary);
  margin-bottom:14px;
  font-weight:700;
}
.doc-head h2{
  font-size:clamp(24px,3vw,36px);
  margin-bottom:14px;
}
.doc-head p{color:var(--c-muted);font-size:15.5px;margin:0;}

.doc-section{
  padding:38px 0;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.doc-section:last-of-type{border-bottom:0;}
.doc-section h3{
  font-size:21px;
  margin-bottom:8px;
  display:flex;
  align-items:center;
  gap:12px;
}
.doc-section h3::before{
  content:"";
  width:3px;
  height:20px;
  background:var(--c-primary);
  border-radius:2px;
  flex-shrink:0;
}
.doc-section .sec-meta{
  font-family:var(--font-num);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--c-muted);
  margin-bottom:18px;
}
.doc-section p{
  color:#D2D8D3;
  max-width:46em;
}
.doc-section p strong{color:#fff;font-weight:700;}

/* 要点列表 */
.point-list{margin:20px 0 4px;display:grid;gap:12px;}
.point-list li{
  display:flex;
  gap:12px;
  padding:14px 16px;
  background:var(--c-ink-2);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  font-size:15px;
  color:#C9D0CA;
  align-items:flex-start;
}
.point-list li i{
  color:var(--c-primary);
  font-size:12px;
  margin-top:8px;
  flex-shrink:0;
}

/* 卡片区 */
.card-band{
  margin:44px 0 0;
  padding:36px 0 8px;
  border-top:1px solid var(--c-line);
}
.card-band h3{
  font-size:19px;
  margin-bottom:20px;
}
.card-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.news-card{
  display:flex;
  flex-direction:column;
  background:var(--c-ink-2);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:var(--c-line-strong);}
.news-card .thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:#0F1211;
}
.news-card .thumb img{
  width:100%;height:100%;
  object-fit:cover;
  border-radius:0;
  transition:transform .42s var(--ease);
}
.news-card:hover .thumb img{transform:scale(1.04);}
.news-card .body{padding:18px 20px 22px;}
.news-card h4{
  font-size:16.5px;
  margin-bottom:8px;
  line-height:1.45;
}
.news-card:hover h4{color:var(--c-primary);}
.news-card p{
  font-size:14px;
  color:var(--c-muted);
  line-height:1.75;
  margin:0 0 14px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-meta{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-num);
  font-size:11.5px;
  letter-spacing:.08em;
  color:#7F8883;
}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:3px;
  font-size:11.5px;
  letter-spacing:.06em;
  font-weight:500;
  border:1px solid rgba(198,245,60,.42);
  color:var(--c-primary);
  background:rgba(198,245,60,.06);
}
.badge-solid{
  background:var(--c-accent);
  border-color:var(--c-accent);
  color:#fff;
}
.badge-plain{
  background:rgba(255,255,255,.06);
  border-color:transparent;
  color:#B8BFBA;
}

/* 数据条 */
.stat-band{
  margin:52px 0 0;
  padding:34px 0;
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
}
.stat-item{
  padding:0 22px;
  border-left:1px solid var(--c-line);
}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-item b{
  display:block;
  font-family:var(--font-num);
  font-size:clamp(26px,3vw,38px);
  font-weight:700;
  color:var(--c-text);
  letter-spacing:-.02em;
  line-height:1.1;
}
.stat-item span{
  display:block;
  margin-top:8px;
  font-size:13px;
  color:var(--c-muted);
}

/* FAQ */
.faq-sec{padding:var(--section-y) 0 0;}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  padding-bottom:20px;
  border-bottom:1px solid var(--c-line);
  margin-bottom:34px;
}
.sec-head h2{font-size:clamp(24px,3.2vw,38px);}
.sec-head p{color:var(--c-muted);font-size:14.5px;margin:8px 0 0;}
.faq-list{border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;
  min-height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:16px 0;
  background:transparent;
  border:0;
  text-align:left;
  font-size:16px;
  font-weight:700;
  color:var(--c-text);
  transition:color .28s var(--ease);
}
.faq-q:hover{color:var(--c-primary);}
.faq-q i{
  color:var(--c-primary);
  font-size:13px;
  transition:transform .3s var(--ease);
  flex-shrink:0;
}
.faq-item.open .faq-q i{transform:rotate(180deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .38s var(--ease);
}
.faq-a p{
  font-size:15px;
  line-height:1.85;
  color:#B9C0BB;
  padding:0 0 22px;
  max-width:60em;
  margin:0;
}

/* CTA */
.cta-band{
  margin-top:var(--section-y);
  background:var(--c-paper);
  color:var(--c-paper-ink);
  padding:clamp(64px,7vw,110px) 0;
}
.cta-band .cta-inner{
  max-width:760px;
  margin:0 auto;
  text-align:center;
}
.cta-band h2{
  font-size:clamp(26px,3.6vw,44px);
  color:var(--c-paper-ink);
  margin-bottom:18px;
}
.cta-band p{
  color:#4A5147;
  font-size:16px;
  margin-bottom:32px;
}
.cta-band .cta-note{
  margin-top:18px;
  font-size:13.5px;
  color:#6A716A;
}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}

/* 页脚 */
.site-footer{
  background:#08090A;
  border-top:1px solid rgba(255,255,255,.08);
  margin-top:0;
  padding:clamp(56px,6vw,84px) 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:48px;
  padding-bottom:52px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-col p{font-size:14px;color:var(--c-muted);line-height:1.85;margin:0;}
.footer-col h4{
  font-size:12px;
  letter-spacing:.14em;
  color:#7E8781;
  margin-bottom:18px;
  font-weight:700;
}
.footer-links li a{
  display:inline-block;
  font-size:14px;
  line-height:2.1;
  color:#C0C7C2;
}
.sub-form{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.sub-form input{
  height:48px;
  padding:0 16px;
  background:#121514;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  color:var(--c-text);
  font-size:14.5px;
  font-family:inherit;
  transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.sub-form input::placeholder{color:#98A09B;}
.sub-form input:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 2px rgba(198,245,60,.22);
}
.sub-form .btn{width:100%;height:48px;padding:0 20px;}
.footer-note{margin-top:12px;font-size:12.5px;color:#6E766F;line-height:1.7;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0 30px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  font-size:13px;
  color:#7A827C;
}
.fb-right{display:flex;align-items:center;gap:20px;flex-wrap:wrap;}
.to-top{
  height:38px;
  padding:0 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  background:transparent;
  color:#C0C7C2;
  font-size:13px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  transition:all .28s var(--ease);
}
.to-top:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* 移动端抽屉 */
.mobile-drawer{
  display:none;
  border-top:1px solid var(--c-line);
  background:#0B0D0C;
  padding:8px 24px 24px;
}
.mobile-drawer a{
  display:block;
  font-size:19px;
  line-height:1;
  padding:22px 0;
  border-bottom:1px solid rgba(255,255,255,.08);
  color:#C9D0CA;
}
.mobile-drawer a.active{color:var(--c-primary);}
.drawer-cta{padding-top:22px;}
.mobile-drawer.open{display:block;}

/* 响应式 */
@media (max-width:1279px){
  .layout{grid-template-columns:minmax(0,260px) minmax(0,1fr);gap:44px;}
  .main-nav{gap:20px;}
}
@media (max-width:1023px){
  .main-nav{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .toc{position:static;margin-bottom:40px;}
  .toc-card{padding:22px 20px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px;}
  .stat-band{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 0;}
  .stat-item:nth-child(3){border-left:0;padding-left:0;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .topbar-mid{display:none;}
  .topbar .container{justify-content:space-between;}
  .nav-wrap{height:68px;}
  .brand-name{font-size:15.5px;}
  .brand-sub{letter-spacing:.08em;}
  .nav-actions .btn{display:none;}
  .cat-hero{padding:40px 0 34px;min-height:24vh;}
  .cat-hero h1{font-size:clamp(28px,7vw,40px);}
  .cat-hero .cat-lead{font-size:15.5px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .stat-band{grid-template-columns:minmax(0,1fr);}
  .stat-item{border-left:0;padding:0;}
  .stat-item + .stat-item{padding-top:22px;border-top:1px solid var(--c-line);}
  .doc-section h3{font-size:18.5px;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .page-main{padding-top:64px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category3 */
/* ===== 设计变量 ===== */
:root{
  --c-ink:#0B0D0C;
  --c-ink-2:#141816;
  --c-ink-3:#1B211F;
  --c-line:rgba(255,255,255,.10);
  --c-line-strong:rgba(255,255,255,.22);
  --c-primary:#C6F53C;
  --c-accent:#FF5A28;
  --c-paper:#F3F1EA;
  --c-paper-ink:#14181A;
  --c-text:#EDEFEC;
  --c-muted:#98A09B;
  --r-card:6px;
  --r-img:4px;
  --r-pill:999px;
  --container:1320px;
  --gutter:24px;
  --ease:cubic-bezier(.22,.8,.2,1);
  --sec-gap:clamp(72px,9vw,140px);
  --shadow-paper:0 18px 40px rgba(11,13,12,.08);
}

/* ===== 基础重置 ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-ink);
  color:var(--c-text);
  font-family:"Noto Sans SC","Inter","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.9;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;transition:color .28s var(--ease),opacity .28s var(--ease);}
a:hover{color:var(--c-primary);}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;color:inherit;}
ul{list-style:none;margin:0;padding:0;}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;font-weight:900;letter-spacing:-.02em;line-height:1.14;}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
  border-radius:3px;
}
::selection{background:var(--c-primary);color:#0B0D0C;}

/* ===== 容器 ===== */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--gutter);
}
@media (min-width:1440px){
  :root{--container:1400px;--gutter:32px;}
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  height:50px;
  padding:0 30px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:700;
  letter-spacing:.01em;
  white-space:nowrap;
  transition:transform .28s var(--ease),background .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease),filter .28s var(--ease);
}
.btn i{transition:transform .28s var(--ease);}
.btn:hover i{transform:translateX(3px);}
.btn-primary{
  background:var(--c-primary);
  color:#0B0D0C;
  border:1px solid var(--c-primary);
}
.btn-primary:hover{
  filter:brightness(1.08);
  transform:translateY(-1px);
  color:#0B0D0C;
}
.btn-ghost{
  border:1px solid rgba(255,255,255,.24);
  background:transparent;
  color:var(--c-text);
}
.btn-ghost:hover{
  border-color:#fff;
  background:rgba(255,255,255,.06);
  color:#fff;
  transform:translateY(-1px);
}
.btn-dark{
  background:#0B0D0C;
  color:var(--c-paper);
  border:1px solid #0B0D0C;
}
.btn-dark:hover{filter:brightness(1.2);transform:translateY(-1px);color:#fff;}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:500;
  color:var(--c-muted);
  transition:color .28s var(--ease);
}
.btn-link:hover{color:var(--c-primary);}
.btn-link i{transition:transform .28s var(--ease);}
.btn-link:hover i{transform:translateX(3px);}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 9px;
  border-radius:3px;
  font-size:11.5px;
  letter-spacing:.06em;
  font-weight:500;
  line-height:1;
}
.badge-line{border:1px solid rgba(198,245,60,.45);color:var(--c-primary);}
.badge-solid{background:var(--c-accent);color:#fff;}
.badge-dim{background:rgba(255,255,255,.07);color:var(--c-muted);}

/* ===== 顶部导航（与首页一致） ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(11,13,12,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),background .3s var(--ease);
}
.site-header.is-stuck{
  border-bottom-color:var(--c-line);
  background:rgba(11,13,12,.95);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:76px;
}
.brand{display:flex;align-items:center;gap:12px;color:var(--c-text);}
.brand:hover{color:var(--c-text);}
.brand-mark{
  width:38px;height:38px;
  flex:0 0 38px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  background:var(--c-primary);
  color:#0B0D0C;
  font-weight:900;
  font-size:19px;
  letter-spacing:0;
}
.brand-name{
  display:flex;
  flex-direction:column;
  font-weight:700;
  font-size:17px;
  line-height:1.16;
  letter-spacing:.01em;
}
.brand-sub{
  font-size:11.5px;
  font-weight:400;
  letter-spacing:.08em;
  color:var(--c-muted);
  margin-top:3px;
}
.main-nav{display:flex;align-items:center;gap:30px;}
.main-nav a{
  position:relative;
  font-size:14.5px;
  font-weight:500;
  color:var(--c-muted);
  padding:6px 0;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0;bottom:-2px;
  width:0;height:2px;
  background:var(--c-primary);
  transition:width .3s var(--ease);
}
.main-nav a:hover{color:var(--c-text);}
.main-nav a:hover::after{width:100%;}
.main-nav a.active{color:var(--c-text);}
.main-nav a.active::after{width:100%;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-search{
  width:40px;height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--c-line);
  color:var(--c-muted);
  transition:color .28s var(--ease),border-color .28s var(--ease),background .28s var(--ease);
}
.nav-search:hover{color:var(--c-primary);border-color:var(--c-line-strong);background:rgba(255,255,255,.05);}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  border:1px solid var(--c-line);
  color:var(--c-text);
  font-size:16px;
}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--c-line);
  background:var(--c-ink);
  padding:8px var(--gutter) 22px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:block;
  font-size:20px;
  line-height:64px;
  color:var(--c-text);
  border-bottom:1px solid var(--c-line);
}
.mobile-drawer a.active{color:var(--c-primary);}
.drawer-cta{margin-top:20px;}

/* ===== 分类 Hero 带 ===== */
.cat-hero{
  position:relative;
  min-height:30vh;
  display:flex;
  align-items:flex-end;
  padding:54px 0 46px;
  background-image:linear-gradient(180deg,rgba(11,13,12,.72) 0%,rgba(11,13,12,.92) 62%,var(--c-ink) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
.cat-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--c-muted);
  margin-bottom:26px;
}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--c-text);}
.cat-hero h1{
  font-size:clamp(34px,5.4vw,68px);
  font-weight:900;
  line-height:1.06;
  letter-spacing:-.02em;
  margin-bottom:16px;
}
.hero-sub{
  max-width:640px;
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-muted);
  margin-bottom:26px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.hero-tags .tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:32px;
  padding:0 14px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--c-text);
  background:rgba(255,255,255,.03);
}
.hero-tags .tag i{color:var(--c-primary);font-size:11px;}

/* ===== 区块通用 ===== */
.section{padding:var(--sec-gap) 0;}
.section-tight{padding:clamp(52px,6vw,88px) 0;}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  padding-bottom:18px;
  border-bottom:1px solid rgba(255,255,255,.08);
  margin-bottom:44px;
}
.sec-head h2{
  font-size:clamp(26px,3.2vw,42px);
  font-weight:900;
  line-height:1.16;
}
.sec-head p{
  margin:12px 0 0;
  color:var(--c-muted);
  font-size:15px;
  max-width:560px;
}
.lead{
  max-width:760px;
  font-size:17px;
  line-height:1.95;
  color:var(--c-muted);
}
.lead strong{color:var(--c-text);font-weight:500;}

/* ===== 数据条 ===== */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
}
.stat-item{
  padding:30px 26px;
  border-left:1px solid var(--c-line);
}
.stat-item:first-child{border-left:0;}
.stat-num{
  font-family:"Inter",sans-serif;
  font-variant-numeric:tabular-nums;
  font-size:clamp(28px,3vw,40px);
  font-weight:700;
  line-height:1;
  color:var(--c-primary);
  letter-spacing:-.02em;
}
.stat-label{
  margin-top:12px;
  font-size:13.5px;
  color:var(--c-muted);
  line-height:1.7;
}

/* ===== Z 字交替图文 ===== */
.z-list{display:flex;flex-direction:column;gap:clamp(56px,7vw,104px);}
.z-row{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:clamp(28px,4vw,64px);
  align-items:center;
}
.z-row.reverse .z-media{order:2;}
.z-row.reverse .z-body{order:1;}
.z-media{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--c-line);
  aspect-ratio:16/10;
  background:#0F1211;
}
.z-media img{
  width:100%;height:100%;
  object-fit:cover;
  border-radius:0;
  transition:transform .42s var(--ease);
}
.z-row:hover .z-media img{transform:scale(1.04);}
.z-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(11,13,12,0) 42%,rgba(11,13,12,.55) 100%);
  pointer-events:none;
}
.z-media .z-cap{
  position:absolute;
  left:18px;bottom:16px;
  z-index:2;
  font-size:12.5px;
  letter-spacing:.04em;
  color:rgba(237,239,236,.86);
}
.z-index{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:52px;
  height:44px;
  padding:0 14px;
  border:1px solid rgba(198,245,60,.45);
  border-radius:var(--r-pill);
  color:var(--c-primary);
  font-family:"Inter",sans-serif;
  font-variant-numeric:tabular-nums;
  font-size:17px;
  font-weight:700;
  letter-spacing:.04em;
  margin-bottom:22px;
}
.z-body h3{
  font-size:clamp(21px,2.2vw,28px);
  font-weight:900;
  margin-bottom:18px;
  line-height:1.28;
}
.z-body p{
  color:var(--c-muted);
  font-size:16px;
  line-height:1.95;
  max-width:560px;
}
.z-body p:last-of-type{margin-bottom:0;}
.z-points{
  margin:24px 0 0;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.z-points li{
  position:relative;
  padding-left:24px;
  font-size:15px;
  color:var(--c-text);
  line-height:1.8;
}
.z-points li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:12px;height:2px;
  background:var(--c-primary);
}

/* ===== 清单 / 建议卡 ===== */
.check-band{
  background:var(--c-ink-2);
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
}
.check-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.check-card{
  padding:28px 26px 30px;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  background:var(--c-ink-3);
  transition:transform .28s var(--ease),border-color .28s var(--ease);
}
.check-card:hover{transform:translateY(-4px);border-color:var(--c-line-strong);}
.check-card .ico{
  width:42px;height:42px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  border:1px solid rgba(198,245,60,.35);
  color:var(--c-primary);
  margin-bottom:20px;
  font-size:16px;
}
.check-card h3{
  font-size:18px;
  font-weight:700;
  margin-bottom:12px;
}
.check-card p{
  margin:0;
  font-size:14.5px;
  line-height:1.85;
  color:var(--c-muted);
}
.check-list{margin-top:18px;display:flex;flex-direction:column;gap:8px;}
.check-list li{
  font-size:13.5px;
  color:var(--c-text);
  padding-left:16px;
  position:relative;
  line-height:1.75;
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:10px;
  width:5px;height:5px;
  border-radius:1px;
  background:var(--c-primary);
}

/* ===== FAQ ===== */
.faq-list{border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:64px;
  padding:16px 4px;
  text-align:left;
  font-size:16px;
  font-weight:500;
  color:var(--c-text);
  transition:color .28s var(--ease),padding-left .28s var(--ease);
}
.faq-q:hover{color:var(--c-primary);padding-left:8px;}
.faq-q .chev{
  flex:0 0 auto;
  font-size:13px;
  color:var(--c-muted);
  transition:transform .3s var(--ease),color .3s var(--ease);
}
.faq-item.open .faq-q{color:var(--c-primary);}
.faq-item.open .chev{transform:rotate(180deg);color:var(--c-primary);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .4s var(--ease);
}
.faq-a-inner{
  padding:2px 4px 24px;
  color:var(--c-muted);
  font-size:15px;
  line-height:1.9;
  max-width:820px;
}

/* ===== 收尾 CTA ===== */
.cta-band{
  background:var(--c-paper);
  color:var(--c-paper-ink);
  padding:clamp(64px,8vw,110px) 0;
}
.cta-inner{
  max-width:760px;
  margin:0 auto;
  text-align:center;
}
.cta-inner .badge{margin-bottom:22px;}
.cta-inner h2{
  font-size:clamp(26px,3.4vw,44px);
  font-weight:900;
  line-height:1.16;
  color:var(--c-paper-ink);
  margin-bottom:18px;
}
.cta-inner p{
  color:#4A524E;
  font-size:16px;
  line-height:1.9;
  margin-bottom:32px;
}
.cta-note{
  margin-top:18px;
  font-size:13px;
  color:#6C746F;
  letter-spacing:.02em;
}

/* ===== 页脚 ===== */
.site-footer{
  background:#08090A;
  border-top:1px solid rgba(255,255,255,.08);
  padding:clamp(56px,6vw,84px) 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:56px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:18px;
}
.footer-col p{
  color:var(--c-muted);
  font-size:14px;
  line-height:1.85;
  margin:0 0 12px;
}
.footer-col h4{
  font-size:12px;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--c-text);
  margin-bottom:18px;
}
.footer-links li{margin-bottom:2px;}
.footer-links a{
  display:inline-block;
  font-size:14px;
  line-height:2.1;
  color:var(--c-muted);
}
.footer-links a:hover{color:var(--c-primary);}
.sub-form{display:flex;flex-direction:column;gap:10px;}
.sub-form input{
  width:100%;
  height:48px;
  padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  background:#121514;
  color:var(--c-text);
  font-size:14px;
  transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.sub-form input::placeholder{color:var(--c-muted);}
.sub-form input:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 2px rgba(198,245,60,.22);
}
.footer-note{font-size:12.5px;color:var(--c-muted);margin-top:12px;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 0 30px;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;
  color:var(--c-muted);
}
.fb-right{display:flex;align-items:center;gap:20px;}
.to-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-muted);
  transition:color .28s var(--ease);
}
.to-top:hover{color:var(--c-primary);}

/* ===== 滚动入场 ===== */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
.reveal.is-in{opacity:1;transform:none;}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .nav-wrap{height:70px;}
  .main-nav{display:none;}
  .nav-actions .btn-sm{display:none;}
  .nav-toggle{display:inline-flex;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .stat-item:nth-child(3){border-left:0;}
  .stat-item:nth-child(1),
  .stat-item:nth-child(2){border-bottom:1px solid var(--c-line);}
  .check-grid{grid-template-columns:1fr;}
  .z-row{grid-template-columns:1fr;gap:26px;}
  .z-row.reverse .z-media{order:0;}
  .z-row.reverse .z-body{order:1;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .cat-hero{padding:40px 0 36px;min-height:26vh;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px;}
  .sec-head h2{font-size:clamp(24px,6vw,32px);}
  .lead{font-size:16px;}
  .z-body h3{font-size:21px;}
  .z-body p{font-size:15.5px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-inner .btn{width:100%;}
}
@media (max-width:520px){
  :root{--gutter:18px;}
  .brand-name{font-size:15.5px;}
  .brand-sub{font-size:11px;letter-spacing:.05em;}
  .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:17px;}
  .cat-hero h1{font-size:clamp(30px,8vw,38px);}
  .hero-sub{font-size:15.5px;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-item{border-left:0;border-bottom:1px solid var(--c-line);padding:24px 0;}
  .stat-item:last-child{border-bottom:0;}
  .z-index{min-width:46px;height:38px;font-size:15px;}
  .faq-q{font-size:15.5px;}
  .check-card{padding:24px 20px;}
  .badge{font-size:11px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --c-ink:#0B0D0C;
  --c-ink-2:#141816;
  --c-ink-3:#1B211F;
  --c-line:rgba(255,255,255,.10);
  --c-line-strong:rgba(255,255,255,.22);
  --c-primary:#C6F53C;
  --c-accent:#FF5A28;
  --c-paper:#F3F1EA;
  --c-paper-ink:#14181A;
  --c-paper-muted:#5B615C;
  --c-text:#EDEFEC;
  --c-muted:#98A09B;
  --r-card:6px;
  --r-img:4px;
  --r-pill:999px;
  --sp-section:clamp(72px,9vw,140px);
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter","Oswald","Helvetica Neue",Arial,sans-serif;
  --ease:cubic-bezier(.22,.8,.2,1);
  --dur:300ms;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-ink);
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.9;
  font-weight:400;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease),opacity var(--dur) var(--ease);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{font-weight:900;line-height:1.12;letter-spacing:-.02em;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{width:100%;max-width:1320px;margin:0 auto;padding:0 24px;}
@media (min-width:1440px){
  .container{max-width:1400px;padding:0 32px;}
}
.section{padding:var(--sp-section) 0;}
.section-tight{padding:clamp(52px,6vw,88px) 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  padding-bottom:20px;border-bottom:1px solid rgba(255,255,255,.08);margin-bottom:clamp(28px,4vw,48px);
}
.section-head h2{font-size:clamp(26px,3.2vw,42px);}
.section-head .head-sub{color:var(--c-muted);font-size:14px;line-height:1.7;max-width:560px;margin-top:10px;}
.link-more{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text);
  white-space:nowrap;padding:8px 0;
}
.link-more i{transition:transform var(--dur) var(--ease);}
.link-more:hover{color:var(--c-primary);}
.link-more:hover i{transform:translateX(4px);}

/* ============ 顶部信息条 ============ */
.topbar{height:34px;background:var(--c-ink);border-bottom:1px solid rgba(255,255,255,.06);}
.topbar-inner{height:34px;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:12.5px;letter-spacing:.04em;color:var(--c-muted);}
.topbar-site{font-family:var(--font-num);color:var(--c-text);letter-spacing:.08em;}
.topbar-tip{flex:1;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-tip b{color:var(--c-primary);font-weight:600;}
.topbar-links{display:flex;align-items:center;gap:14px;}
.topbar-links a{padding-left:14px;border-left:1px solid rgba(255,255,255,.12);}
.topbar-links a:hover{color:var(--c-primary);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(11,13,12,.92);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:background var(--dur) var(--ease),backdrop-filter var(--dur) var(--ease);
}
.site-header.scrolled{background:rgba(11,13,12,.86);backdrop-filter:blur(14px);border-bottom-color:rgba(255,255,255,.12);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;}
.brand{display:flex;align-items:center;gap:12px;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;display:flex;align-items:center;justify-content:center;
  border-radius:10px;background:var(--c-primary);color:#0B0D0C;font-weight:900;font-size:19px;
  letter-spacing:0;
}
.brand-name{display:flex;flex-direction:column;font-size:18px;font-weight:900;line-height:1.2;letter-spacing:-.01em;}
.brand-sub{font-size:11.5px;font-weight:400;color:var(--c-muted);letter-spacing:.06em;margin-top:2px;}
.main-nav{display:flex;align-items:center;gap:6px;}
.main-nav a{
  position:relative;font-size:14.5px;color:#D5D9D5;padding:10px 14px;border-radius:var(--r-pill);
  white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--c-primary);
  transform:scaleX(0);transform-origin:left;transition:transform var(--dur) var(--ease);
}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.05);}
.main-nav a.active{color:#fff;}
.main-nav a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-search{
  width:42px;height:42px;border-radius:50%;border:1px solid var(--c-line);color:var(--c-text);
  display:flex;align-items:center;justify-content:center;transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-search:hover{border-color:var(--c-line-strong);background:rgba(255,255,255,.06);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 30px;border-radius:var(--r-pill);font-size:15px;font-weight:700;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),filter var(--dur) var(--ease);
}
.btn i{transition:transform var(--dur) var(--ease);font-size:13px;}
.btn-primary{background:var(--c-primary);color:#0B0D0C;}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);}
.btn-primary:hover i{transform:translateX(3px);}
.btn-ghost{border:1px solid rgba(255,255,255,.24);color:var(--c-text);}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.06);}
.btn-dark{background:#0B0D0C;color:#EDEFEC;}
.btn-dark:hover{filter:brightness(1.18);transform:translateY(-1px);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--c-line);color:var(--c-text);font-size:16px;}
.mobile-drawer{
  display:none;position:fixed;inset:0 0 auto 0;top:0;z-index:70;background:#0B0D0C;
  padding:88px 24px 40px;border-bottom:1px solid var(--c-line);
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{display:block;font-size:20px;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.08);}
.mobile-drawer a.active{color:var(--c-primary);}
.drawer-cta{margin-top:26px;}

/* ============ 分类 Hero ============ */
.cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--c-line);}
.cat-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:0;opacity:.42;}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,13,12,.96) 0%,rgba(11,13,12,.80) 46%,rgba(11,13,12,.62) 100%);
}
.cat-hero-inner{position:relative;z-index:2;padding:clamp(46px,6vw,86px) 0 clamp(40px,5vw,68px);}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--c-muted);margin-bottom:22px;flex-wrap:wrap;}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb span.sep{opacity:.5;}
.breadcrumb .current{color:var(--c-text);}
.cat-hero h1{font-size:clamp(32px,5.2vw,68px);line-height:1.06;max-width:16em;}
.cat-hero .hero-lead{margin-top:20px;font-size:clamp(15.5px,1.5vw,18px);line-height:1.85;color:#CFD4CF;max-width:44em;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.tag{
  display:inline-flex;align-items:center;gap:7px;height:30px;padding:0 14px;border-radius:var(--r-pill);
  border:1px solid rgba(198,245,60,.45);color:var(--c-primary);font-size:12.5px;letter-spacing:.05em;
}
.tag.neutral{border-color:var(--c-line);color:var(--c-muted);}
.tag i{font-size:11px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}

/* ============ 排行列表 ============ */
.rank-list{border-top:1px solid rgba(255,255,255,.08);}
.rank-item{
  display:grid;grid-template-columns:96px 1fr 240px;align-items:center;gap:28px;
  padding:26px 8px;border-bottom:1px solid rgba(255,255,255,.08);
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease);
}
.rank-item:hover{transform:translateX(4px);background:rgba(255,255,255,.02);}
.rank-num{
  font-family:var(--font-num);font-size:34px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1.2px rgba(198,245,60,.75);letter-spacing:.02em;
}
.rank-item:hover .rank-num{-webkit-text-stroke-color:var(--c-primary);}
.rank-body h3{font-size:20px;transition:color var(--dur) var(--ease);}
.rank-item:hover .rank-body h3{color:var(--c-primary);}
.rank-body p{margin-top:8px;font-size:14.5px;color:var(--c-muted);line-height:1.8;max-width:56ch;}
.rank-meta{display:flex;flex-direction:column;gap:8px;align-items:flex-start;font-size:12.5px;color:var(--c-muted);}
.rank-meta .badge-line{display:inline-flex;align-items:center;gap:8px;}
.rank-meta .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
.rank-meta .fields{font-family:var(--font-num);letter-spacing:.06em;color:#C5CAC6;}

/* ============ 数据入口卡 ============ */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.entry-card{
  background:var(--c-ink-2);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.entry-card:hover{transform:translateY(-4px);border-color:var(--c-line-strong);}
.entry-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0F1211;}
.entry-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform 420ms var(--ease);}
.entry-card:hover .entry-media img{transform:scale(1.04);}
.entry-media::after{
  content:"\f201";font-family:"Font Awesome 6 Free";font-weight:900;font-size:13px;
  position:absolute;top:12px;right:12px;width:34px;height:34px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;background:var(--c-primary);color:#0B0D0C;
  opacity:0;transform:translateY(-6px);transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.entry-card:hover .entry-media::after{opacity:1;transform:translateY(0);}
.entry-body{padding:20px 22px 24px;}
.entry-body .kicker{font-size:11.5px;letter-spacing:.12em;color:var(--c-primary);font-family:var(--font-num);}
.entry-body h3{font-size:19px;margin-top:10px;}
.entry-body p{margin-top:10px;font-size:14.5px;color:var(--c-muted);line-height:1.8;}
.entry-foot{margin-top:16px;display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--c-muted);}
.chip{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:3px;
  font-size:11.5px;letter-spacing:.06em;border:1px solid rgba(198,245,60,.45);color:var(--c-primary);
}
.chip.gray{border-color:var(--c-line);color:var(--c-muted);}

/* ============ 对比表 ============ */
.table-band{background:var(--c-paper);color:var(--c-paper-ink);border-radius:var(--r-card);}
.table-band .section-head{border-bottom-color:rgba(20,24,26,.12);}
.table-band .section-head .head-sub{color:var(--c-paper-muted);}
.table-band .link-more{color:var(--c-paper-ink);}
.table-band .link-more:hover{color:#3B6B00;}
.compare-wrap{border:1px solid rgba(20,24,26,.14);border-radius:var(--r-card);background:#fff;overflow:hidden;}
.table-scroll{overflow-x:auto;}
.compare-table{min-width:760px;font-size:14.5px;}
.compare-table th,.compare-table td{padding:16px 18px;text-align:left;border-bottom:1px solid rgba(20,24,26,.10);vertical-align:top;}
.compare-table thead th{
  font-size:12.5px;letter-spacing:.08em;color:var(--c-paper-muted);font-weight:700;
  background:#EEECE4;border-bottom:1px solid rgba(20,24,26,.16);
}
.compare-table tbody tr:last-child td{border-bottom:0;}
.compare-table tbody tr:hover{background:#F8F7F2;}
.compare-table td:first-child{font-weight:700;color:var(--c-paper-ink);white-space:nowrap;}
.compare-table td{color:#3C423E;line-height:1.7;}
.compare-note{margin-top:18px;font-size:13px;color:var(--c-paper-muted);line-height:1.8;}

/* ============ 双栏问答 ============ */
.qa-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.qa-col{display:flex;flex-direction:column;gap:14px;}
.qa-col-title{font-size:12.5px;letter-spacing:.14em;color:var(--c-muted);font-family:var(--font-num);margin-bottom:4px;}
details.qa{
  background:var(--c-ink-2);border:1px solid var(--c-line);border-radius:var(--r-card);
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
details.qa[open]{border-color:rgba(198,245,60,.45);background:var(--c-ink-3);}
details.qa summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;font-size:16px;font-weight:700;min-height:60px;cursor:pointer;
}
details.qa summary::-webkit-details-marker{display:none;}
details.qa summary .chev{transition:transform var(--dur) var(--ease);color:var(--c-primary);font-size:13px;}
details.qa[open] summary .chev{transform:rotate(180deg);}
details.qa .qa-body{padding:0 22px 22px;font-size:15px;line-height:1.9;color:#C9CEC9;}

/* ============ CTA ============ */
.cta-band{background:var(--c-paper);color:var(--c-paper-ink);}
.cta-inner{padding:clamp(64px,8vw,110px) 0;text-align:center;display:flex;flex-direction:column;align-items:center;}
.cta-inner h2{font-size:clamp(28px,4vw,52px);color:var(--c-paper-ink);max-width:20em;}
.cta-inner p{margin-top:18px;font-size:15.5px;color:var(--c-paper-muted);max-width:52ch;line-height:1.85;}
.cta-inner .btn{margin-top:34px;}
.cta-note{margin-top:16px;font-size:13px;color:var(--c-paper-muted);}

/* ============ 页脚 ============ */
.site-footer{background:#08090A;border-top:1px solid rgba(255,255,255,.08);padding-top:clamp(56px,7vw,92px);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-col p{font-size:14px;color:var(--c-muted);line-height:1.9;}
.footer-col h4{font-size:12px;letter-spacing:.14em;color:#D7DBD7;margin-bottom:18px;font-weight:700;font-family:var(--font-num);}
.footer-links li{line-height:2.1;}
.footer-links a{font-size:14px;color:var(--c-muted);}
.footer-links a:hover{color:var(--c-primary);}
.sub-form{display:flex;gap:10px;flex-wrap:wrap;}
.sub-form input{
  flex:1 1 160px;height:48px;min-width:0;padding:0 16px;border-radius:var(--r-pill);
  background:#121514;border:1px solid var(--c-line);color:var(--c-text);font-size:14px;font-family:inherit;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.sub-form input::placeholder{color:var(--c-muted);}
.sub-form input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(198,245,60,.16);}
.sub-form .btn{height:48px;padding:0 22px;font-size:14px;}
.footer-note{margin-top:12px;font-size:12.5px;color:#767C78;}
.footer-bottom{
  margin-top:clamp(48px,6vw,80px);border-top:1px solid rgba(255,255,255,.08);
  padding:24px 0 36px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--c-muted);
}
.fb-right{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.to-top{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);font-size:13px;color:var(--c-text);
}
.to-top:hover{border-color:var(--c-line-strong);color:var(--c-primary);}

/* ============ 入场动效 ============ */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity 420ms var(--ease),transform 420ms var(--ease);}
.js .reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .js .reveal{opacity:1;transform:none;}
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .rank-item{grid-template-columns:80px 1fr 200px;gap:22px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-col:last-child{grid-column:1/-1;}
}
@media (max-width:1023px){
  .main-nav{display:none;}
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
  .nav-actions .btn-sm{display:none;}
  .entry-grid{grid-template-columns:repeat(2,1fr);}
  .rank-item{grid-template-columns:64px 1fr;gap:18px;}
  .rank-meta{grid-column:2;flex-direction:row;flex-wrap:wrap;gap:16px;margin-top:6px;}
  .rank-num{font-size:28px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .topbar-tip{display:none;}
  .topbar-inner{justify-content:space-between;}
  .nav-wrap{height:64px;}
  .brand-name{font-size:16px;}
  .brand-sub{display:none;}
  .cat-hero-inner{padding:38px 0 44px;}
  .cat-hero .hero-lead{font-size:15.5px;}
  .entry-grid{grid-template-columns:1fr;}
  .qa-grid{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .rank-item{padding:22px 4px;}
  .rank-body h3{font-size:18px;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .hero-actions .btn{width:100%;}
  .cat-hero h1{font-size:30px;}
  .section-head h2{font-size:24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}