/* roulang page: index */
:root{
  --bg:#070A14;
  --bg-2:#0C1122;
  --panel:#121A31;
  --brand:#21E6C1;
  --brand-2:#7C6BFF;
  --gold:#FFC65C;
  --text:#E8EDF7;
  --muted:#9AA6BF;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --radius-card:18px;
  --radius-img:14px;
  --radius-btn:999px;
  --radius-input:12px;
  --shadow:0 12px 32px rgba(0,0,0,.45);
  --glow:0 0 24px rgba(33,230,193,.28);
  --glow-btn:0 8px 28px rgba(33,230,193,.35);
  --container:min(1280px,92vw);
  --gap:24px;
  --sec-pad:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;border-radius:var(--radius-img);}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out,opacity .18s ease-out;}
a:visited{color:var(--brand);}
a:hover{color:#6ff5df;}
ul,ol{margin:0;padding:0;list-style:none;}
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(--brand);outline-offset:3px;border-radius:6px;}
.container{width:var(--container);margin:0 auto;}
.section{padding:var(--sec-pad) 0;}
.section--tight{padding:64px 0;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,10,20,.55);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background .25s ease-out,border-color .25s ease-out;
}
.site-header.is-scrolled{
  background:rgba(7,10,20,.88);
  border-bottom-color:var(--line);
}
.nav-wrap{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  height:76px;
}
.nav-side{display:flex;align-items:center;gap:26px;}
.nav-left{justify-content:flex-start;}
.nav-right{justify-content:flex-end;}
.nav-link{
  position:relative;
  color:var(--muted);
  font-size:15px;
  font-weight:500;
  padding:6px 0;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);}
.nav-link.is-active{color:var(--text);}
.nav-link.is-active::after{
  content:"";
  position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:var(--brand);
  border-radius:2px;
  box-shadow:0 0 10px rgba(33,230,193,.8);
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--text);
  font-weight:800;
  font-size:17px;
  letter-spacing:-.2px;
  white-space:nowrap;
}
.brand:hover{color:var(--text);}
.brand-mark{
  width:30px;height:30px;flex:0 0 30px;
  display:grid;place-items:center;
  border-radius:9px;
  background:linear-gradient(135deg,rgba(33,230,193,.22),rgba(124,107,255,.28));
  border:1px solid rgba(33,230,193,.35);
  color:var(--brand);
}
.brand-mark svg{width:16px;height:16px;}
.brand-text{background:linear-gradient(90deg,#fff,#bfe9e0);-webkit-background-clip:text;background-clip:text;color:transparent;}
.icon-btn{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--muted);
  transition:color .18s ease-out,border-color .18s ease-out,background .18s ease-out;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(33,230,193,.45);background:rgba(33,230,193,.08);}
.icon-btn svg{width:17px;height:17px;}
.menu-toggle{
  display:none;
  width:40px;height:40px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text);
  place-items:center;
}
.menu-toggle svg{width:20px;height:20px;}
.drawer{
  position:fixed;inset:0;z-index:120;
  background:rgba(7,10,20,.98);
  backdrop-filter:blur(8px);
  padding:20px 6vw 40px;
  display:none;
  flex-direction:column;
}
.drawer.is-open{display:flex;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:56px;margin-bottom:18px;}
.drawer-close{width:40px;height:40px;display:grid;place-items:center;border-radius:12px;border:1px solid var(--line);color:var(--text);}
.drawer-close svg{width:18px;height:18px;}
.drawer-links{display:flex;flex-direction:column;}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;line-height:52px;
  color:var(--text);
  font-size:17px;
  border-bottom:1px solid var(--line);
}
.drawer-links a span.arrow{color:var(--muted);font-size:14px;}
.drawer-cta{margin-top:26px;display:flex;flex-direction:column;gap:12px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,border-color .18s ease-out,color .18s ease-out;
  white-space:nowrap;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),#18c9ab);
  color:#04231d;
  box-shadow:var(--glow-btn);
}
.btn-primary:hover{color:#04231d;transform:translateY(-1px);box-shadow:0 12px 36px rgba(33,230,193,.5);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 16px rgba(33,230,193,.35);}
.btn-ghost{
  background:rgba(255,255,255,.05);
  color:var(--text);
  border-color:var(--line-strong);
  backdrop-filter:blur(8px);
}
.btn-ghost:hover{color:var(--text);border-color:rgba(33,230,193,.5);background:rgba(33,230,193,.1);}
.btn-ghost:active{background:rgba(33,230,193,.16);}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;}

/* ---------- hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  padding:132px 0 150px;
  min-height:700px;
  display:flex;
  align-items:center;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  transform:scale(1.02);
}
.hero-veil{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(7,10,20,.97) 0%,rgba(7,10,20,.86) 44%,rgba(7,10,20,.46) 100%),
    linear-gradient(180deg,rgba(7,10,20,.72) 0%,rgba(7,10,20,.1) 34%,rgba(7,10,20,.94) 92%,var(--bg) 100%);
}
.hero-stars{
  position:absolute;inset:0;
  opacity:.07;
  background-image:
    radial-gradient(1.4px 1.4px at 18% 22%,#fff,transparent),
    radial-gradient(1.2px 1.2px at 72% 16%,#fff,transparent),
    radial-gradient(1.6px 1.6px at 44% 62%,#fff,transparent),
    radial-gradient(1.2px 1.2px at 86% 74%,#fff,transparent),
    radial-gradient(1.4px 1.4px at 30% 86%,#fff,transparent);
  background-size:100% 100%;
}
.hero-inner{
  position:relative;z-index:3;
  display:grid;
  grid-template-columns:minmax(0,1fr) 316px;
  align-items:end;
  gap:48px;
}
.hero-copy{max-width:760px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;
  border-radius:999px;
  border:1px solid rgba(33,230,193,.45);
  color:var(--brand);
  font-size:12px;letter-spacing:.12em;
  background:rgba(33,230,193,.07);
  margin-bottom:22px;
}
.hero h1{
  font-size:clamp(30px,4vw,50px);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.5px;
  margin-bottom:20px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  font-size:17px;
  color:var(--muted);
  max-width:640px;
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--muted);
}
.hero-meta b{color:var(--text);font-variant-numeric:tabular-nums;font-weight:700;}
.hero-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.28);}

.top3{
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:rgba(12,17,34,.72);
  backdrop-filter:blur(14px);
  padding:22px;
  box-shadow:var(--shadow);
}
.top3-title{
  font-size:12px;letter-spacing:.16em;
  color:var(--gold);
  margin-bottom:16px;
}
.top3 li{
  display:grid;
  grid-template-columns:38px 1fr;
  align-items:center;
  gap:12px;
  padding:12px 0;
  border-bottom:1px solid var(--line);
}
.top3 li:last-child{border-bottom:0;padding-bottom:0;}
.top3 li:first-child{padding-top:0;}
.top3-num{
  font-size:16px;font-weight:800;
  font-variant-numeric:tabular-nums;
  color:var(--gold);
  border:1px solid rgba(255,198,92,.4);
  border-radius:8px;
  height:30px;display:grid;place-items:center;
  background:rgba(255,198,92,.07);
}
.top3 strong{display:block;font-size:14px;font-weight:600;line-height:1.4;}
.top3 em{display:block;font-style:normal;font-size:12px;color:var(--muted);}

/* ---------- section head ---------- */
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:34px;
}
.section-title{
  font-size:clamp(22px,2.4vw,31px);
  font-weight:700;
  letter-spacing:-.3px;
  line-height:1.3;
  margin-bottom:8px;
}
.section-desc{font-size:14px;color:var(--muted);}
.rail-nav{display:flex;gap:10px;flex:0 0 auto;}
.rail-btn{
  width:42px;height:42px;border-radius:50%;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.05);
  color:var(--text);
  font-size:20px;line-height:1;
  display:grid;place-items:center;
  transition:all .18s ease-out;
}
.rail-btn:hover{background:rgba(124,107,255,.2);border-color:rgba(124,107,255,.6);color:#fff;transform:translateY(-1px);}
.rail-btn:active{transform:translateY(0);}

/* ---------- rail cards ---------- */
.rail{
  display:flex;gap:var(--gap);
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  scrollbar-width:none;
  padding-bottom:6px;
}
.rail::-webkit-scrollbar{display:none;}
.rail > .card{flex:0 0 250px;scroll-snap-align:start;}
.card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
  display:flex;flex-direction:column;
}
.card:hover{
  transform:translateY(-3px);
  border-color:rgba(33,230,193,.45);
  box-shadow:var(--shadow),var(--glow);
}
.card-cover{
  position:relative;
  display:block;
  aspect-ratio:3/4;
  overflow:hidden;
  border-radius:0;
  background:linear-gradient(135deg,#16203c,#0b1020);
}
.card-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease-out;}
.card:hover .card-cover img{transform:scale(1.04);}
.card-badge{
  position:absolute;top:12px;left:12px;
  height:24px;padding:0 10px;
  display:inline-flex;align-items:center;
  font-size:12px;
  border-radius:999px;
  color:#04231d;
  background:linear-gradient(135deg,var(--brand),#18c9ab);
  font-weight:600;
}
.card-badge--purple{background:linear-gradient(135deg,var(--brand-2),#5a48d8);color:#fff;}
.card-badge--gold{background:linear-gradient(135deg,var(--gold),#e5a63a);color:#33230a;}
.card-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:16px;font-weight:700;line-height:1.5;}
.card-title a{color:var(--text);}
.card-title a:hover{color:var(--brand);}
.card-meta{
  display:flex;align-items:center;gap:12px;
  font-size:12px;color:var(--muted);
  font-variant-numeric:tabular-nums;
  margin-top:auto;
}

/* ---------- rank ---------- */
.rank-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;}
.rank-main{
  position:relative;
  display:block;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  min-height:340px;
}
.rank-main img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease-out;}
.rank-main:hover img{transform:scale(1.03);}
.rank-main::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,20,.15) 0%,rgba(7,10,20,.5) 55%,rgba(7,10,20,.94) 100%);
}
.rank-main-body{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:26px;
}
.rank-heat{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  background:rgba(255,198,92,.16);
  border:1px solid rgba(255,198,92,.45);
  color:var(--gold);
  font-size:12px;font-weight:600;
  margin-bottom:14px;
}
.rank-main h3{font-size:22px;font-weight:700;line-height:1.4;color:#fff;margin-bottom:10px;}
.rank-main p{font-size:13px;color:rgba(232,237,247,.72);}
.rank-list{border:1px solid var(--line);border-radius:var(--radius-card);background:rgba(12,17,34,.6);overflow:hidden;}
.rank-item{
  display:grid;
  grid-template-columns:44px 1fr auto;
  align-items:center;
  gap:14px;
  padding:17px 20px;
  border-bottom:1px solid var(--line);
  transition:background .18s ease-out;
}
.rank-item:last-child{border-bottom:0;}
.rank-item:hover{background:rgba(33,230,193,.06);}
.rank-item:hover .rank-t{color:var(--brand);}
.rank-num{
  font-size:15px;font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--muted);
}
.rank-item:nth-child(1) .rank-num,
.rank-item:nth-child(2) .rank-num,
.rank-item:nth-child(3) .rank-num{color:var(--gold);}
.rank-t{display:block;font-size:15px;font-weight:600;color:var(--text);line-height:1.5;}
.rank-s{display:block;font-size:12px;color:var(--muted);}
.rank-time{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap;}

/* ---------- matrix ---------- */
.matrix-row-1{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap);}
.matrix-row-2{display:grid;grid-template-columns:repeat(3,1fr) minmax(210px,.82fr);gap:var(--gap);margin-top:var(--gap);}
.big-card{
  position:relative;
  display:block;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  aspect-ratio:16/9;
  background:#0b1020;
}
.big-card img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease-out;}
.big-card:hover img{transform:scale(1.04);}
.big-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,20,.05) 30%,rgba(7,10,20,.9) 100%);
}
.big-card-body{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:22px 24px;}
.big-card-body h3{font-size:19px;font-weight:700;color:#fff;margin-bottom:6px;}
.big-card-body p{font-size:13px;color:rgba(232,237,247,.7);}
.mid-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
  box-shadow:var(--shadow);
}
.mid-card:hover{transform:translateY(-3px);border-color:rgba(124,107,255,.5);box-shadow:var(--shadow),0 0 24px rgba(124,107,255,.24);}
.mid-card img{width:100%;height:130px;object-fit:cover;border-radius:0;}
.mid-card-body{padding:16px 18px 20px;}
.mid-card-body h3{font-size:16px;font-weight:700;margin-bottom:6px;}
.mid-card-body h3 a{color:var(--text);}
.mid-card-body h3 a:hover{color:var(--brand);}
.mid-card-body p{font-size:13px;color:var(--muted);}
.text-card{
  background:linear-gradient(160deg,rgba(33,230,193,.12),rgba(124,107,255,.14));
  border:1px solid rgba(33,230,193,.28);
  border-radius:var(--radius-card);
  padding:24px;
  display:flex;flex-direction:column;justify-content:space-between;
  box-shadow:var(--shadow);
}
.text-card h3{font-size:17px;font-weight:700;margin-bottom:10px;}
.text-card p{font-size:13px;color:rgba(232,237,247,.78);margin-bottom:18px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.text-link:hover{color:#6ff5df;gap:10px;}

/* ---------- news (cms) ---------- */
.news-list{display:grid;gap:16px;}
.news-card{
  display:grid;
  grid-template-columns:96px 1fr;
  gap:18px;
  padding:18px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  transition:border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;
  box-shadow:0 8px 22px rgba(0,0,0,.32);
}
.news-card:hover{border-color:rgba(33,230,193,.42);box-shadow:0 8px 22px rgba(0,0,0,.32),var(--glow);transform:translateY(-2px);}
.news-thumb{
  width:96px;height:96px;
  border-radius:12px;
  overflow:hidden;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  display:block;
}
.news-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.news-body{min-width:0;}
.news-title{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:6px;}
.news-title a{color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-title a:hover{color:var(--brand);}
.news-summary{
  font-size:13px;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:10px;
}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;}
.chip{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;
  border-radius:999px;
  border:1px solid rgba(124,107,255,.4);
  background:rgba(124,107,255,.12);
  color:#b9b0ff;
  font-size:12px;
}
.empty-state{
  border:1px dashed var(--line-strong);
  border-radius:var(--radius-card);
  padding:44px 24px;
  text-align:center;
  color:var(--muted);
  font-size:14px;
  background:rgba(12,17,34,.5);
}
.empty-state .empty-ico{
  width:46px;height:46px;margin:0 auto 14px;
  border-radius:14px;
  background:linear-gradient(135deg,rgba(33,230,193,.2),rgba(124,107,255,.24));
  display:grid;place-items:center;
  color:var(--brand);
}
.empty-state .empty-ico svg{width:22px;height:22px;}

/* ---------- stats ---------- */
.stats-band{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,17,34,.9),rgba(7,10,20,.4));
}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);padding:44px 0;}
.stat{border-left:2px solid rgba(33,230,193,.35);padding-left:18px;}
.stat:first-child{border-left:0;padding-left:0;}
.stat-num{font-size:32px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-label{font-size:13px;color:var(--muted);margin-top:4px;}

/* ---------- faq ---------- */
.faq{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(18,26,49,.66);
  overflow:hidden;
  transition:border-color .18s ease-out,background .18s ease-out;
}
.faq-item.is-open{border-color:rgba(33,230,193,.42);background:rgba(18,26,49,.92);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;
  text-align:left;
  font-size:16px;font-weight:600;color:var(--text);
  position:relative;
  transition:color .18s ease-out;
}
.faq-q:hover{color:var(--brand);}
.faq-item.is-open .faq-q{color:var(--brand);}
.faq-item.is-open .faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:0 3px 3px 0;background:var(--brand);box-shadow:0 0 12px rgba(33,230,193,.7);
}
.faq-icon{
  flex:0 0 22px;width:22px;height:22px;
  position:relative;
  transition:transform .2s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--muted);border-radius:2px;
  transition:background .18s ease-out,transform .2s ease-out;
}
.faq-icon::before{left:0;right:0;top:10px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:10px;width:2px;}
.faq-item.is-open .faq-icon{transform:rotate(90deg);}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out;}
.faq-a p{padding:0 22px 20px;font-size:14px;color:var(--muted);line-height:1.85;}

/* ---------- cta ---------- */
.cta-banner{
  position:relative;
  overflow:hidden;
  border-radius:22px;
  border:1px solid rgba(33,230,193,.28);
  background:linear-gradient(135deg,rgba(33,230,193,.22) 0%,rgba(124,107,255,.26) 100%),#0b1428;
  padding:44px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  min-height:200px;
  box-shadow:0 20px 50px rgba(0,0,0,.45);
}
.cta-banner::before{
  content:"";position:absolute;inset:0;opacity:.06;
  background-image:
    radial-gradient(1.4px 1.4px at 12% 30%,#fff,transparent),
    radial-gradient(1.4px 1.4px at 62% 18%,#fff,transparent),
    radial-gradient(1.6px 1.6px at 84% 68%,#fff,transparent),
    radial-gradient(1.2px 1.2px at 34% 82%,#fff,transparent);
}
.cta-banner > *{position:relative;z-index:2;}
.cta-banner h2{font-size:clamp(21px,2.3vw,28px);font-weight:800;line-height:1.35;margin-bottom:10px;letter-spacing:-.3px;}
.cta-banner p{font-size:14px;color:rgba(232,237,247,.78);}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

/* ---------- footer ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,var(--bg-2),var(--bg));
  padding-top:64px;
  margin-top:20px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-intro{font-size:13px;color:var(--muted);line-height:1.9;max-width:320px;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.04em;}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:13px;color:var(--muted);}
.footer-col a:hover{color:var(--brand);}
.footer-contact{font-size:13px;color:var(--muted);line-height:1.9;}
.footer-contact strong{color:var(--text);font-weight:600;display:block;margin-bottom:6px;font-size:13px;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:12px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--brand);}
.footer-bottom .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.24);display:inline-block;margin:0 8px;vertical-align:middle;}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  :root{--sec-pad:80px;}
  .rail > .card{flex:0 0 232px;}
}
@media (max-width:1024px){
  :root{--sec-pad:72px;--gap:20px;}
  .nav-wrap{height:70px;}
  .nav-side{gap:18px;}
  .nav-link{font-size:14px;}
  .brand{font-size:16px;}
  .hero{padding:110px 0 120px;min-height:620px;}
  .hero-inner{grid-template-columns:1fr;gap:32px;align-items:start;}
  .top3{max-width:420px;}
  .rank-grid{grid-template-columns:1fr;}
  .matrix-row-1{grid-template-columns:1fr;}
  .matrix-row-2{grid-template-columns:1fr 1fr;}
  .news-list{grid-template-columns:1fr 1fr;}
  .news-card{grid-template-columns:80px 1fr;gap:14px;padding:16px;}
  .news-thumb{width:80px;height:80px;}
  .stats{grid-template-columns:1fr 1fr;gap:28px;padding:36px 0;}
  .stat:nth-child(3){border-left:0;padding-left:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-banner{padding:36px;flex-direction:column;align-items:flex-start;}
}
@media (max-width:768px){
  :root{--sec-pad:56px;--gap:16px;}
  .nav-wrap{grid-template-columns:auto 1fr auto;height:56px;gap:12px;}
  .nav-side{display:none;}
  .brand{justify-self:center;font-size:15px;}
  .brand-mark{width:26px;height:26px;flex:0 0 26px;border-radius:8px;}
  .menu-toggle{display:grid;justify-self:end;}
  .nav-wrap .header-cta{display:none;}
  .hero{padding:88px 0 84px;min-height:68vh;}
  .hero h1{font-size:clamp(26px,7vw,32px);line-height:1.25;}
  .hero-sub{font-size:15px;margin-bottom:24px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{height:44px;padding:0 20px;font-size:14px;}
  .hero-meta{font-size:12px;}
  .top3{padding:18px;max-width:none;}
  .rail > .card{flex:0 0 68vw;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .rank-main{min-height:250px;}
  .rank-main-body{padding:20px;}
  .rank-main h3{font-size:18px;}
  .rank-item{grid-template-columns:34px 1fr;gap:10px;padding:14px 16px;}
  .rank-time{grid-column:2;font-size:11px;}
  .matrix-row-2{grid-template-columns:1fr;}
  .mid-card img{height:160px;}
  .news-list{grid-template-columns:1fr;}
  .news-title{font-size:15px;}
  .stats{grid-template-columns:1fr 1fr;gap:22px;}
  .stat-num{font-size:26px;}
  .cta-banner{padding:28px 22px;min-height:auto;border-radius:18px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .faq-q{font-size:15px;padding:16px 18px;}
  .faq-a p{padding:0 18px 18px;}
}
@media (max-width:520px){
  .hero h1{font-size:26px;}
  .hero-tag{font-size:11px;}
  .rail > .card{flex:0 0 72vw;}
  .stats{grid-template-columns:1fr 1fr;}
  .stat-num{font-size:22px;}
  .news-card{grid-template-columns:1fr;gap:12px;}
  .news-thumb{width:100%;height:150px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important;}
  .card:hover{transform:none;}
  .card:hover .card-cover img,.rank-main:hover img,.big-card:hover img{transform:none;}
}

/* roulang page: article */
:root{
  --bg:#070A14;
  --bg-2:#0C1122;
  --panel:#121A31;
  --brand:#21E6C1;
  --brand-soft:rgba(33,230,193,.12);
  --accent:#7C6BFF;
  --gold:#FFC65C;
  --text:#E8EDF7;
  --text-2:#D8DFEF;
  --muted:#9AA6BF;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --r-card:18px;
  --r-img:14px;
  --r-btn:999px;
  --shadow:0 12px 32px rgba(0,0,0,.45);
  --glow:0 8px 28px rgba(33,230,193,.35);
  --glow-hover:0 12px 36px rgba(33,230,193,.5);
  --container:min(1280px,92vw);
  --ease:180ms ease-out;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(1100px 560px at 12% -12%, rgba(124,107,255,.16), transparent 62%),
    radial-gradient(900px 520px at 92% -6%, rgba(33,230,193,.10), transparent 62%);
  background-repeat:no-repeat;
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),opacity var(--ease)}
a:visited{color:var(--brand)}
a:hover{color:#5df3d8}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0}
button{font-family:inherit;border:0;background:none;color:inherit;cursor:pointer}
input,textarea,select{font-family:inherit;font-size:16px}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.container{width:var(--container);margin:0 auto}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(7,10,20,.55);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid transparent;
  transition:background 240ms ease-out,border-color 240ms ease-out;
}
.site-header.is-scrolled{background:rgba(7,10,20,.86);border-bottom-color:var(--line)}
.header-inner{
  width:var(--container);margin:0 auto;
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:16px;min-height:76px;
}
.nav-side{display:flex;align-items:center;gap:26px}
.nav-right{justify-content:flex-end;gap:14px}
.nav-link{
  position:relative;color:var(--muted);font-size:15px;font-weight:500;
  padding:6px 2px;transition:color var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link.is-active{color:var(--text)}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;
  background:var(--brand);border-radius:2px;
  box-shadow:0 0 12px rgba(33,230,193,.85);
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--text);font-weight:800;letter-spacing:-.2px;
  justify-self:center;white-space:nowrap;
}
.brand:visited{color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(33,230,193,.22),rgba(124,107,255,.28));
  border:1px solid var(--line-strong);color:var(--brand);
}
.brand-mark svg{width:19px;height:19px}
.brand-text{font-size:17px}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:38px;padding:0 18px;border-radius:var(--r-btn);
  font-size:14px;font-weight:600;color:#04140F;
  background:linear-gradient(135deg,var(--brand),#5df3d8);
  box-shadow:var(--glow);transition:all var(--ease);
}
.nav-cta:visited{color:#04140F}
.nav-cta:hover{color:#04140F;transform:translateY(-1px);box-shadow:var(--glow-hover)}
.nav-cta:active{transform:translateY(0);box-shadow:0 4px 16px rgba(33,230,193,.3)}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line-strong);background:rgba(255,255,255,.04);
  align-items:center;justify-content:center;color:var(--text);
}
.menu-toggle:hover{background:rgba(255,255,255,.08)}
.menu-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

/* ---------- mobile drawer ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:65;
  background:rgba(7,10,20,.97);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  padding:96px 26px 34px;
  display:flex;flex-direction:column;
  transform:translateX(100%);visibility:hidden;
  transition:transform 280ms ease-out,visibility 280ms ease-out;
}
.mobile-drawer.is-open{transform:none;visibility:visible}
.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;margin-bottom:18px}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;line-height:52px;color:var(--text-2);font-size:16px;
  border-bottom:1px solid var(--line);padding:0 2px;
}
.drawer-link:hover{color:var(--brand)}
.drawer-cta{
  margin-top:26px;display:flex;align-items:center;justify-content:center;
  height:50px;border-radius:var(--r-btn);font-weight:700;color:#04140F;
  background:linear-gradient(135deg,var(--brand),#5df3d8);box-shadow:var(--glow);
}
.drawer-cta:visited{color:#04140F}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;transition:all var(--ease);cursor:pointer;
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),#5df3d8);color:#04140F;
  box-shadow:var(--glow);
}
.btn-primary:visited{color:#04140F}
.btn-primary:hover{color:#04140F;transform:translateY(-1px);box-shadow:var(--glow-hover)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 16px rgba(33,230,193,.3)}
.btn-ghost{
  background:rgba(255,255,255,.04);color:var(--text);
  border-color:var(--line-strong);backdrop-filter:blur(8px);
}
.btn-ghost:visited{color:var(--text)}
.btn-ghost:hover{color:var(--text);border-color:rgba(33,230,193,.55);background:rgba(33,230,193,.08);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;
  padding:26px 0 54px;
  background-image:
    linear-gradient(180deg,rgba(7,10,20,.80),rgba(7,10,20,.94) 62%,var(--bg) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center 28%;
  border-bottom:1px solid var(--line);
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);padding:14px 0 30px;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(255,255,255,.28)}
.breadcrumb .current{color:var(--brand);max-width:52vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{max-width:860px}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 14px;border-radius:var(--r-btn);
  font-size:12px;font-weight:600;letter-spacing:.4px;
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
  color:var(--text-2);
}
.pill-cat{
  color:var(--brand);border-color:rgba(33,230,193,.45);
  background:rgba(33,230,193,.10);margin-bottom:18px;
}
.article-head h1{
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.24;font-weight:800;letter-spacing:-.5px;
  color:var(--text);margin-bottom:20px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;
}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-row .dot-sep{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.24)}
.meta-row .meta-strong{color:var(--text-2)}

/* ---------- article layout ---------- */
.article-section{padding:56px 0 20px}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,820px) 258px;
  gap:56px;
  justify-content:center;
  align-items:start;
}
.article-main{
  min-width:0;
  background:linear-gradient(180deg,rgba(18,26,49,.92),rgba(12,17,34,.92));
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:38px 42px 40px;
  box-shadow:var(--shadow);
  position:relative;
  overflow:hidden;
}
.article-main::before{
  content:"";position:absolute;inset:0 0 auto 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.18),transparent);
}
.article-body{font-size:16px;line-height:1.85;color:var(--text-2);word-break:break-word}
.article-body h2{
  font-size:24px;line-height:1.42;font-weight:700;color:var(--text);
  margin:44px 0 16px;padding-left:14px;border-left:3px solid var(--brand);
}
.article-body h3{font-size:20px;line-height:1.5;font-weight:700;color:var(--text);margin:32px 0 12px}
.article-body h4{font-size:17px;font-weight:700;color:var(--text);margin:26px 0 10px}
.article-body p{margin:0 0 22px}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:22px}
.article-body li{margin-bottom:10px}
.article-body ul li::marker{color:var(--brand)}
.article-body ol li::marker{color:var(--brand);font-weight:700}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(33,230,193,.35)}
.article-body a:hover{border-bottom-color:var(--brand)}
.article-body strong{color:var(--text)}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;
  background:rgba(255,255,255,.04);
  border-left:3px solid var(--brand);
  border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{width:auto;max-width:100%;height:auto;border-radius:var(--r-img);margin:28px auto;border:1px solid var(--line)}
.article-body figure{margin:28px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  background:rgba(255,255,255,.03);border-radius:var(--r-img);overflow:hidden;
}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{color:var(--text);font-weight:600;background:rgba(255,255,255,.04)}
.article-body tr:last-child td{border-bottom:0}
.article-body code{
  background:rgba(33,230,193,.12);color:var(--brand);
  padding:2px 6px;border-radius:6px;font-size:14px;
}
.article-body pre{
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  padding:18px;border-radius:var(--r-img);overflow-x:auto;margin:24px 0;
}
.article-body pre code{background:none;padding:0;color:var(--text-2)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0}

/* ---------- tags / back ---------- */
.article-tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:38px;padding-top:26px;border-top:1px solid var(--line);
}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--r-btn);font-size:13px;color:var(--muted);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:all var(--ease);
}
.tag:visited{color:var(--muted)}
.tag:hover{color:var(--brand);border-color:rgba(33,230,193,.5);background:rgba(33,230,193,.08)}
.back-row{margin-top:24px;display:flex;flex-wrap:wrap;gap:12px}

/* ---------- empty state ---------- */
.article-empty{
  text-align:center;padding:56px 24px;
  border:1px dashed rgba(255,255,255,.18);
  border-radius:var(--r-card);
  background:rgba(255,255,255,.02);
}
.article-empty .empty-icon{
  width:64px;height:64px;margin:0 auto 20px;border-radius:20px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(33,230,193,.2),rgba(124,107,255,.28));
  color:var(--brand);
}
.article-empty .empty-icon svg{width:30px;height:30px}
.article-empty h2{font-size:22px;font-weight:700;margin-bottom:12px;color:var(--text)}
.article-empty p{color:var(--muted);font-size:15px;max-width:520px;margin:0 auto 26px}

/* ---------- toc ---------- */
.article-side{position:sticky;top:104px}
.toc{
  background:rgba(18,26,49,.72);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 20px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.toc h3{
  font-size:14px;font-weight:700;color:var(--text);letter-spacing:.6px;
  display:flex;align-items:center;gap:8px;margin-bottom:14px;
}
.toc h3::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(33,230,193,.9)}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:52vh;overflow:auto}
.toc-link{
  display:block;font-size:13.5px;line-height:1.6;color:var(--muted);
  padding:7px 10px;border-radius:9px;border-left:2px solid transparent;
  transition:all var(--ease);
}
.toc-link:hover{color:var(--brand);background:rgba(33,230,193,.08);border-left-color:var(--brand)}
.toc-note{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  font-size:12.5px;color:rgba(154,166,191,.8);line-height:1.7;
}

/* ---------- sections ---------- */
.section{padding:56px 0}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:28px;flex-wrap:wrap;
}
.section-title{
  font-size:clamp(22px,2.4vw,30px);font-weight:700;letter-spacing:-.3px;color:var(--text);
  display:flex;align-items:center;gap:12px;
}
.section-title::before{
  content:"";width:4px;height:22px;border-radius:4px;
  background:linear-gradient(180deg,var(--brand),var(--accent));
}
.section-desc{font-size:14px;color:var(--muted);margin-top:8px}
.link-more{font-size:14px;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.link-more:hover{gap:10px}

/* ---------- related cards ---------- */
.rel-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;
}
.rel-card{
  display:flex;flex-direction:column;
  background:linear-gradient(180deg,rgba(18,26,49,.94),rgba(12,17,34,.94));
  border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
  color:var(--text);
}
.rel-card:visited{color:var(--text)}
.rel-card:hover{
  transform:translateY(-4px);
  border-color:rgba(33,230,193,.45);
  box-shadow:var(--shadow),0 0 24px rgba(33,230,193,.28);
}
.rel-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,rgba(33,230,193,.18),rgba(124,107,255,.3))}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease-out}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-badge{
  position:absolute;left:12px;top:12px;height:24px;padding:0 10px;
  display:inline-flex;align-items:center;border-radius:var(--r-btn);
  font-size:11.5px;font-weight:600;color:#04140F;
  background:rgba(255,198,92,.94);
}
.rel-body{padding:18px 20px 22px}
.rel-body h3{
  font-size:16.5px;font-weight:700;line-height:1.5;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:10px;
}
.rel-body p{
  font-size:13.5px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:14px;
}
.rel-meta{font-size:12.5px;color:rgba(154,166,191,.85);display:flex;gap:14px;font-variant-numeric:tabular-nums}

/* ---------- faq ---------- */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  margin-bottom:12px;
  position:relative;overflow:hidden;
  transition:border-color var(--ease),background var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--brand);transform:scaleY(0);transform-origin:top;
  transition:transform 240ms ease-out;
}
.faq-item.is-open{border-color:rgba(33,230,193,.35);background:rgba(33,230,193,.05)}
.faq-item.is-open::before{transform:scaleY(1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);color:var(--brand);font-size:16px;line-height:1;
  transition:transform 220ms ease-out,border-color var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(90deg);border-color:rgba(33,230,193,.55)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease-out}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:0 22px 22px;font-size:15px;color:var(--muted);line-height:1.8}

/* ---------- cta ---------- */
.cta-banner{
  position:relative;overflow:hidden;
  border-radius:22px;
  border:1px solid rgba(255,255,255,.1);
  background:
    radial-gradient(circle at 18% 20%, rgba(255,255,255,.10) 0 2px, transparent 2px),
    radial-gradient(circle at 68% 66%, rgba(255,255,255,.08) 0 1.5px, transparent 1.5px),
    linear-gradient(135deg,rgba(33,230,193,.32),rgba(124,107,255,.36));
  padding:44px 46px;
  display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;
  box-shadow:var(--shadow);
}
.cta-banner h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;letter-spacing:-.3px;color:#F3F8FF;max-width:640px}
.cta-banner p{margin-top:10px;font-size:14.5px;color:rgba(243,248,255,.82)}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-actions .btn-ghost{background:rgba(7,10,20,.35);border-color:rgba(255,255,255,.32);color:#F3F8FF}
.cta-actions .btn-ghost:visited{color:#F3F8FF}

/* ---------- footer ---------- */
.site-footer{
  margin-top:64px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,17,34,.7),rgba(7,10,20,.98));
  padding:56px 0 26px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:38px;
}
.footer-brand .brand{justify-self:start;margin-bottom:16px}
.footer-intro{font-size:13.5px;color:var(--muted);line-height:1.9;max-width:330px}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.4px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col li a{font-size:13.5px;color:var(--muted)}
.footer-col li a:hover{color:var(--brand)}
.footer-contact strong{display:block;font-size:13px;color:var(--text-2);margin-bottom:4px}
.footer-contact p{font-size:13px;color:var(--muted);line-height:1.8;margin-bottom:14px}
.footer-contact p a{color:var(--brand)}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(154,166,191,.8);
}
.footer-bottom a{color:rgba(154,166,191,.9)}
.footer-bottom a:hover{color:var(--brand)}
.footer-bottom .dot{display:inline-block;width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.22);margin:0 10px;vertical-align:middle}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .article-layout{grid-template-columns:minmax(0,760px);gap:0}
  .article-side{display:none}
}
@media (max-width:1024px){
  .header-inner{grid-template-columns:auto 1fr auto}
  .nav-left{display:none}
  .brand{justify-self:start;margin-left:4px}
  .nav-right .nav-cta{display:none}
  .menu-toggle{display:inline-flex}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:768px){
  .header-inner{min-height:64px}
  .brand-text{font-size:15.5px}
  .brand-mark{width:30px;height:30px;border-radius:10px}
  .article-hero{padding:10px 0 40px;background-position:center 20%}
  .breadcrumb{padding:10px 0 22px}
  .breadcrumb .current{max-width:64vw}
  .article-section{padding:36px 0 10px}
  .article-main{padding:26px 20px 30px;border-radius:16px}
  .article-body h2{font-size:20px;margin:34px 0 14px}
  .article-body h3{font-size:17.5px;margin:26px 0 10px}
  .article-body{font-size:15px;line-height:1.85}
  .article-body p{margin-bottom:18px}
  .section{padding:44px 0}
  .rel-grid{grid-template-columns:1fr}
  .cta-banner{padding:32px 24px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .faq-q{font-size:15px;padding:17px 18px}
  .faq-a p{padding:0 18px 18px;font-size:14px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-intro{max-width:none}
  .site-footer{padding:44px 0 22px}
}
@media (max-width:520px){
  .btn{height:44px;padding:0 20px;font-size:14.5px}
  .meta-row{font-size:12px;gap:8px 14px}
  .meta-row .dot-sep{display:none}
  .article-tags{gap:8px}
  .breadcrumb .current{max-width:58vw}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --bg:#070A14;
  --bg-2:#0C1122;
  --panel:#121A31;
  --cyan:#21E6C1;
  --violet:#7C6BFF;
  --gold:#FFC65C;
  --text:#E8EDF7;
  --muted:#9AA6BF;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --shadow:0 12px 32px rgba(0,0,0,.45);
  --shadow-hover:0 0 24px rgba(33,230,193,.28);
  --glow:0 8px 28px rgba(33,230,193,.35);
  --glow-hover:0 12px 36px rgba(33,230,193,.5);
  --ease:180ms ease-out;
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-md)}
a{color:var(--cyan);text-decoration:none;transition:color var(--ease)}
a:hover{color:#5cf3d6}
a:visited{color:var(--cyan)}
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}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.container{width:min(1280px,92vw);margin:0 auto}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(7,10,20,.42);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{background:rgba(7,10,20,.88);border-bottom-color:var(--line)}
.nav-wrap{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:22px;height:76px;width:min(1280px,92vw);margin:0 auto;
}
.nav-side{display:flex;align-items:center;gap:26px}
.nav-left{justify-content:flex-start}
.nav-right{justify-content:flex-end}
.nav-link{
  position:relative;font-size:14px;color:var(--muted);
  padding:8px 0;white-space:nowrap;
}
.nav-link:hover,.nav-link:focus-visible{color:var(--text)}
.nav-link.is-active{color:var(--text);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--cyan);border-radius:2px;box-shadow:0 0 12px rgba(33,230,193,.85);
}
.brand{display:flex;align-items:center;gap:10px;justify-self:center}
.brand-mark{
  width:34px;height:34px;display:grid;place-items:center;border-radius:11px;
  color:var(--cyan);
  background:linear-gradient(140deg,rgba(33,230,193,.18),rgba(124,107,255,.22));
  border:1px solid rgba(33,230,193,.35);
  box-shadow:0 0 18px rgba(33,230,193,.22);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.2px;color:var(--text)}
.nav-icons{display:flex;align-items:center;gap:12px;margin-left:6px}
.icon-btn{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--muted);
  background:rgba(255,255,255,.04);transition:all var(--ease);
}
.icon-btn:hover{color:var(--cyan);border-color:rgba(33,230,193,.5);box-shadow:var(--shadow-hover)}
.icon-btn svg{width:17px;height:17px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-size:14px;font-weight:600;
  padding:11px 22px;transition:all var(--ease);white-space:nowrap;
}
.btn-primary{
  color:#04140f;background:linear-gradient(135deg,#21E6C1,#59f0d3);
  box-shadow:var(--glow);
}
.btn-primary:hover{color:#04140f;transform:translateY(-1px);box-shadow:var(--glow-hover)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 16px rgba(33,230,193,.35)}
.btn-ghost{
  color:var(--text);border:1px solid var(--line-strong);
  background:rgba(255,255,255,.05);backdrop-filter:blur(10px);
}
.btn-ghost:hover{color:var(--cyan);border-color:rgba(33,230,193,.55);background:rgba(33,230,193,.08)}
.btn-ghost:active{background:rgba(33,230,193,.14)}
.btn-sm{padding:9px 18px;font-size:13px}
.btn:disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line-strong);
  color:var(--text);background:rgba(255,255,255,.05);
}
.nav-toggle svg{width:20px;height:20px;margin:0 auto}

/* mobile drawer */
.drawer{
  position:fixed;inset:0;z-index:200;background:rgba(7,10,20,.98);
  backdrop-filter:blur(18px);padding:22px 6vw 40px;
  display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity 220ms ease,transform 220ms ease,visibility 220ms;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-links{display:flex;flex-direction:column;margin-top:6px}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  height:52px;font-size:16px;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-links a.is-active{color:var(--cyan)}
.drawer-links a span{color:var(--muted);font-size:13px}
.drawer-cta{margin-top:26px;display:grid;gap:12px}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  padding-top:76px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 420px at 12% 20%,rgba(33,230,193,.10),transparent 70%),
    radial-gradient(700px 380px at 88% 10%,rgba(124,107,255,.14),transparent 70%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(7,10,20,.58) 0%,rgba(7,10,20,.80) 52%,rgba(7,10,20,.97) 88%,var(--bg) 100%);
}
.hero-inner{position:relative;z-index:2;padding:64px 0 84px;max-width:760px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:26px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--cyan)}
.crumbs .sep{color:rgba(255,255,255,.28)}
.crumbs .current{color:var(--cyan)}
.tag-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:12px;letter-spacing:.4px;
  color:var(--cyan);border:1px solid rgba(33,230,193,.45);
  background:rgba(33,230,193,.08);
}
.tag-pill .dot{
  width:6px;height:6px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 10px rgba(33,230,193,.9);
}
.hero h1{
  font-size:clamp(30px,4.6vw,50px);line-height:1.15;font-weight:800;
  letter-spacing:-.5px;margin:20px 0 16px;
}
.hero-sub{font-size:16px;color:#c6cfe2;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:24px;margin-top:32px;
  font-size:13px;color:var(--muted);
}
.hero-meta strong{color:var(--text);font-weight:700}
.hero-meta .num{color:var(--cyan)}

/* ---------- section base ---------- */
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:-.3px}
.section-head p{margin-top:10px;font-size:14px;color:var(--muted);max-width:640px}
.link-more{font-size:14px;font-weight:600;color:var(--cyan);white-space:nowrap}
.link-more:hover{color:#7cf6e2}

/* ---------- filter bar ---------- */
.filter-band{padding:26px 0 0}
.filter-bar{
  display:flex;gap:10px;overflow-x:auto;padding-bottom:8px;
  scrollbar-width:none;
}
.filter-bar::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;padding:9px 18px;border-radius:999px;font-size:13px;
  color:var(--muted);border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);transition:all var(--ease);
}
.chip:hover{color:var(--text);border-color:rgba(33,230,193,.45)}
.chip.is-active{
  color:#04140f;background:linear-gradient(135deg,#21E6C1,#5df0d4);
  border-color:transparent;font-weight:700;box-shadow:var(--glow);
}

/* ---------- entry cards ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.entry-card{
  display:grid;grid-template-columns:212px 1fr;gap:22px;
  padding:20px;border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(18,26,49,.94),rgba(12,17,34,.94));
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  position:relative;overflow:hidden;
}
.entry-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent);
}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(33,230,193,.42);box-shadow:var(--shadow),var(--shadow-hover)}
.entry-thumb{position:relative;border-radius:var(--radius-md);overflow:hidden}
.entry-thumb img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform 300ms ease}
.entry-card:hover .entry-thumb img{transform:scale(1.04)}
.badge{
  position:absolute;top:10px;left:10px;
  padding:4px 10px;border-radius:999px;font-size:11px;font-weight:700;
  color:#04140f;background:var(--cyan);letter-spacing:.3px;
}
.badge.violet{background:var(--violet);color:#fff}
.badge.gold{background:var(--gold);color:#2a1c00}
.entry-body{display:flex;flex-direction:column;gap:10px;min-width:0}
.entry-body h3{font-size:20px;font-weight:700;line-height:1.4}
.entry-body p{font-size:14px;color:var(--muted);line-height:1.75}
.entry-points{display:flex;flex-direction:column;gap:6px;margin-top:2px}
.entry-points li{
  position:relative;padding-left:18px;font-size:13px;color:#b9c4da;line-height:1.7;
}
.entry-points li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;
  background:rgba(33,230,193,.9);box-shadow:0 0 8px rgba(33,230,193,.7);
}
.entry-foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;gap:14px}
.entry-foot .meta{font-size:12px;color:var(--muted)}
.entry-foot .btn{padding:8px 16px;font-size:13px}

/* ---------- check list ---------- */
.check-list{display:flex;flex-direction:column;gap:14px}
.check-row{
  display:grid;grid-template-columns:88px 1fr;gap:22px;align-items:start;
  padding:24px 26px;border-radius:var(--radius-lg);
  background:rgba(18,26,49,.72);border:1px solid var(--line);
  transition:background var(--ease),border-color var(--ease),transform var(--ease);
}
.check-row:hover{background:rgba(33,230,193,.06);border-color:rgba(33,230,193,.32);transform:translateX(4px)}
.check-index{
  font-size:26px;font-weight:800;letter-spacing:-1px;
  color:transparent;-webkit-text-stroke:1px rgba(33,230,193,.75);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.check-row h3{font-size:18px;font-weight:700;margin-bottom:6px}
.check-row p{font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{
  position:relative;padding:24px 20px;border-radius:var(--radius-lg);
  background:rgba(12,17,34,.86);border:1px solid var(--line);
  transition:border-color var(--ease),transform var(--ease);
}
.step:hover{border-color:rgba(124,107,255,.45);transform:translateY(-3px)}
.step .bar{height:3px;border-radius:3px;background:linear-gradient(90deg,var(--cyan),var(--violet));width:44px;margin-bottom:16px}
.step h3{font-size:17px;font-weight:700;margin-bottom:8px}
.step p{font-size:13px;color:var(--muted);line-height:1.75}
.step .idx{
  position:absolute;top:16px;right:18px;font-size:12px;color:var(--muted);
  font-variant-numeric:tabular-nums;
}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{
  padding:26px 22px;border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(18,26,49,.9),rgba(12,17,34,.9));
  border:1px solid var(--line);text-align:left;
}
.stat .value{
  font-size:34px;font-weight:800;letter-spacing:-1px;color:var(--cyan);
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.stat .label{margin-top:8px;font-size:13px;color:var(--muted)}

/* ---------- scenario ---------- */
.scene-grid{display:grid;grid-template-columns:1.25fr .9fr;gap:24px;align-items:stretch}
.scene-main{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);min-height:320px;
}
.scene-main img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}
.scene-main .overlay{
  position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;
  padding:28px;background:linear-gradient(180deg,rgba(7,10,20,.05) 35%,rgba(7,10,20,.92) 100%);
}
.scene-main h3{font-size:22px;font-weight:700;margin-bottom:8px}
.scene-main p{font-size:14px;color:#b9c4da;max-width:420px}
.scene-side{display:grid;gap:24px}
.scene-item{
  padding:26px;border-radius:var(--radius-lg);
  background:rgba(18,26,49,.8);border:1px solid var(--line);
  transition:border-color var(--ease),background var(--ease);
}
.scene-item:hover{border-color:rgba(255,198,92,.4);background:rgba(255,198,92,.05)}
.scene-item .kicker{font-size:12px;color:var(--gold);letter-spacing:.6px;font-weight:700}
.scene-item h3{font-size:18px;font-weight:700;margin:8px 0 8px}
.scene-item p{font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- faq ---------- */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-md);
  background:rgba(18,26,49,.6);margin-bottom:12px;overflow:hidden;
  transition:border-color var(--ease),background var(--ease);
}
.faq-item:hover{border-color:rgba(33,230,193,.3)}
.faq-item.is-open{border-color:rgba(33,230,193,.45);background:rgba(33,230,193,.05)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--text);text-align:left;
  position:relative;
}
.faq-item.is-open .faq-q::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:3px;
  background:var(--cyan);box-shadow:0 0 12px rgba(33,230,193,.8);
}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;border:1px solid var(--line-strong);
  color:var(--muted);font-size:16px;line-height:1;transition:all var(--ease);
}
.faq-item.is-open .faq-icon{
  color:#04140f;background:var(--cyan);border-color:var(--cyan);transform:rotate(90deg);
}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease}
.faq-a p{padding:0 22px 20px;font-size:14px;color:var(--muted);line-height:1.85}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:22px;
  padding:56px 52px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:linear-gradient(135deg,rgba(33,230,193,.22),rgba(124,107,255,.26));
  border:1px solid rgba(255,255,255,.14);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:22px 22px;opacity:.06;pointer-events:none;
}
.cta-band h2{font-size:clamp(20px,2.6vw,28px);font-weight:800;letter-spacing:-.3px;position:relative;z-index:2}
.cta-band p{margin-top:10px;font-size:14px;color:#c6cfe2;position:relative;z-index:2}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2}
.cta-band .btn-primary{box-shadow:0 10px 30px rgba(33,230,193,.4)}
.cta-band .btn-ghost{background:rgba(7,10,20,.35);border-color:rgba(255,255,255,.28)}

/* ---------- footer ---------- */
.site-footer{
  margin-top:88px;padding:64px 0 26px;
  background:var(--bg-2);border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand{justify-self:start;margin-bottom:16px}
.footer-intro{font-size:13px;color:var(--muted);line-height:1.85;max-width:320px}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--text)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:13px;color:var(--muted)}
.footer-col ul a:hover{color:var(--cyan)}
.footer-contact strong{display:block;font-size:13px;color:var(--text);margin-bottom:4px;margin-top:14px}
.footer-contact strong:first-of-type{margin-top:0}
.footer-contact p{font-size:13px;color:var(--muted);line-height:1.8}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:12px;color:var(--muted);
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--cyan)}
.footer-bottom .dot{display:inline-block;width:3px;height:3px;border-radius:50%;background:rgba(255,255,255,.3);margin:0 10px;vertical-align:middle}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .entry-grid{grid-template-columns:1fr}
  .entry-card{grid-template-columns:220px 1fr}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .footer-contact{grid-column:1/-1}
}
@media (max-width:980px){
  .nav-side,.nav-icons{display:none}
  .nav-toggle{display:grid;place-items:center;justify-self:end}
  .nav-wrap{grid-template-columns:auto 1fr auto;height:66px}
  .brand{justify-self:start}
  .section{padding:64px 0}
  .stats{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 30px}
}
@media (max-width:768px){
  body{font-size:15px}
  .hero-inner{padding:40px 0 60px}
  .hero-sub{font-size:15px}
  .hero-meta{gap:16px;font-size:12px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .entry-card{grid-template-columns:1fr;padding:16px;gap:16px}
  .entry-thumb img{aspect-ratio:16/9}
  .check-row{grid-template-columns:1fr;gap:10px;padding:20px}
  .check-index{font-size:22px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .brand-text{font-size:15px}
  .hero-actions .btn{flex:1 1 100%}
  .stats{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms!important;animation-duration:.01ms!important}
  .entry-card:hover,.check-row:hover,.step:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --bg:#070A14;
  --bg-2:#0C1122;
  --panel:#121A31;
  --panel-2:#16203C;
  --mint:#21E6C1;
  --violet:#7C6BFF;
  --gold:#FFC65C;
  --danger:#FF6B6B;
  --text:#E8EDF7;
  --muted:#9AA6BF;
  --line:rgba(255,255,255,0.08);
  --line-strong:rgba(255,255,255,0.16);
  --radius:18px;
  --radius-sm:12px;
  --radius-xs:10px;
  --pill:999px;
  --shadow:0 12px 32px rgba(0,0,0,0.45);
  --glow:0 0 24px rgba(33,230,193,0.28);
  --glow-strong:0 12px 36px rgba(33,230,193,0.5);
  --container:min(1280px,92vw);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;border-radius:14px;}
a{color:var(--mint);text-decoration:none;transition:color .18s var(--ease),opacity .18s var(--ease);}
a:hover{color:#5cf3d6;}
a:focus-visible,button:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:6px;}
button{font-family:inherit;color:inherit;background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{margin:0;line-height:1.2;font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:var(--container);margin:0 auto;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,10,20,0.58);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled{background:rgba(7,10,20,0.9);border-bottom-color:var(--line);}
.nav-wrap{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:24px;
  height:78px;
}
.nav-side{display:flex;align-items:center;gap:24px;}
.nav-side.nav-right{justify-content:flex-end;gap:18px;}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--muted);
  padding:6px 2px;
  white-space:nowrap;
  font-weight:500;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:100%;bottom:-2px;height:2px;
  background:linear-gradient(90deg,var(--mint),var(--violet));
  border-radius:2px;transition:right .22s var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{right:0;}
.nav-link.is-active{color:var(--mint);}
.nav-link.is-active::after{right:0;box-shadow:0 0 12px rgba(33,230,193,.6);}
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center;}
.brand-mark{
  width:36px;height:36px;display:grid;place-items:center;border-radius:12px;
  color:var(--mint);
  background:linear-gradient(140deg,rgba(33,230,193,.2),rgba(124,107,255,.22));
  border:1px solid rgba(33,230,193,.32);
  box-shadow:0 0 18px rgba(33,230,193,.22);
  flex:none;
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.5px;color:var(--text);white-space:nowrap;}
.brand:hover .brand-text{color:#fff;}
.nav-tools{display:flex;align-items:center;gap:10px;margin-left:6px;}
.icon-btn{
  width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;
  color:var(--muted);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  transition:all .18s var(--ease);
}
.icon-btn svg{width:17px;height:17px;}
.icon-btn:hover{color:var(--mint);border-color:rgba(33,230,193,.5);box-shadow:var(--glow);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--pill);
  font-size:15px;font-weight:600;
  padding:12px 26px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--mint),#18b79b);
  color:#04140f;
  box-shadow:0 8px 28px rgba(33,230,193,.35);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--glow-strong);color:#04140f;}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 16px rgba(33,230,193,.3);}
.btn-ghost{
  background:rgba(255,255,255,.05);
  color:var(--text);
  border-color:var(--line-strong);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:rgba(33,230,193,.55);color:var(--mint);box-shadow:var(--glow);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:9px 20px;font-size:14px;}
.btn[disabled]{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;}
.mobile-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  place-items:center;color:var(--text);
}
.mobile-toggle svg{width:18px;height:18px;}

/* 抽屉 */
.drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(7,10,20,.98);
  backdrop-filter:blur(20px);
  transform:translateY(-100%);
  opacity:0;visibility:hidden;
  transition:transform .3s var(--ease),opacity .3s var(--ease),visibility .3s;
  display:flex;flex-direction:column;
  padding:20px 0 40px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;width:var(--container);margin:0 auto 12px;}
.drawer-close{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--text);background:rgba(255,255,255,.04);
}
.drawer-close svg{width:18px;height:18px;}
.drawer nav{width:var(--container);margin:0 auto;display:flex;flex-direction:column;}
.drawer nav a{
  display:flex;align-items:center;justify-content:space-between;
  height:52px;line-height:52px;font-size:16px;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer nav a.is-active{color:var(--mint);}
.drawer nav a::after{content:"›";color:var(--muted);font-size:18px;}
.drawer-cta{width:var(--container);margin:26px auto 0;display:flex;flex-direction:column;gap:12px;}
.drawer-cta .btn{width:100%;}

/* ---------- 分类头图 ---------- */
.page-banner{position:relative;overflow:hidden;padding:82px 0 72px;background:var(--bg);}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.4;
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(60% 70% at 78% 12%,rgba(124,107,255,.24),transparent 70%),
    linear-gradient(180deg,rgba(7,10,20,.86) 0%,rgba(7,10,20,.74) 46%,rgba(7,10,20,.98) 100%);
}
.banner-inner{position:relative;z-index:2;max-width:820px;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);margin-bottom:22px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--mint);}
.breadcrumb .sep{opacity:.55;}
.breadcrumb .now{color:var(--mint);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:var(--pill);
  font-size:12px;letter-spacing:1px;
  color:#CFCBFF;
  border:1px solid rgba(124,107,255,.5);
  background:rgba(124,107,255,.14);
  margin-bottom:20px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--violet);box-shadow:0 0 10px var(--violet);}
h1.page-title{
  font-size:clamp(30px,4.4vw,48px);
  font-weight:800;letter-spacing:-.5px;line-height:1.16;
  margin-bottom:18px;
}
.page-title em{
  font-style:normal;
  background:linear-gradient(100deg,var(--violet),var(--mint));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.banner-desc{font-size:17px;color:#C3CCE0;max-width:680px;margin-bottom:28px;}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.banner-stats{display:flex;flex-wrap:wrap;gap:38px;}
.stat .stat-num{
  font-size:26px;font-weight:800;color:var(--text);
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.stat .stat-num span{font-size:14px;color:var(--muted);font-weight:500;margin-left:4px;}
.stat .stat-label{font-size:13px;color:var(--muted);}

/* ---------- 筛选条 ---------- */
.filter-bar{
  position:relative;z-index:3;
  margin-top:-30px;
  padding:16px 18px;
  border-radius:var(--pill);
  background:rgba(18,26,49,.9);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px);
  display:flex;align-items:center;gap:10px;
  overflow-x:auto;
  scrollbar-width:none;
}
.filter-bar::-webkit-scrollbar{display:none;}
.chip{
  flex:none;
  padding:8px 18px;border-radius:var(--pill);
  font-size:14px;color:var(--muted);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  transition:all .18s var(--ease);white-space:nowrap;
}
.chip:hover{color:var(--text);border-color:var(--line-strong);}
.chip.is-active{
  color:#070A14;background:linear-gradient(135deg,var(--violet),#9C8DFF);
  border-color:transparent;font-weight:600;
  box-shadow:0 6px 20px rgba(124,107,255,.38);
}
.chip-note{margin-left:auto;font-size:13px;color:var(--muted);white-space:nowrap;padding-right:6px;}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--bg-2);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:44px;flex-wrap:wrap;
}
.section-title{font-size:clamp(22px,2.4vw,30px);font-weight:800;letter-spacing:-.3px;}
.section-title::before{
  content:"";display:inline-block;width:6px;height:22px;border-radius:3px;
  background:linear-gradient(180deg,var(--violet),var(--mint));
  margin-right:12px;vertical-align:-3px;
}
.section-sub{font-size:14px;color:var(--muted);margin-top:10px;max-width:640px;}
.link-more{font-size:14px;color:var(--mint);display:inline-flex;align-items:center;gap:6px;font-weight:600;}
.link-more:hover{color:#5cf3d6;}

/* 三列卡 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  position:relative;
  padding:26px 24px;
  border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(22,32,60,.92),rgba(12,17,34,.92));
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
  overflow:hidden;
}
.card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent);
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(124,107,255,.42);
  box-shadow:var(--shadow),0 0 24px rgba(124,107,255,.22);
}
.card-icon{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  color:var(--mint);
  background:rgba(33,230,193,.12);
  border:1px solid rgba(33,230,193,.26);
  margin-bottom:18px;
}
.card-icon svg{width:20px;height:20px;}
.card-title{font-size:19px;font-weight:700;margin-bottom:10px;}
.card-text{font-size:15px;color:var(--muted);line-height:1.8;}
.card-tagline{
  display:inline-block;margin-top:18px;
  font-size:12px;color:var(--gold);letter-spacing:.5px;
}

/* 线路看板 */
.board{
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(170deg,rgba(18,26,49,.96),rgba(9,13,26,.96));
  box-shadow:var(--shadow);
  overflow:hidden;
}
.board-head,.board-row{
  display:grid;
  grid-template-columns:1.5fr 1.4fr 1fr .9fr;
  gap:16px;
  padding:16px 24px;
  align-items:center;
}
.board-head{
  font-size:12px;letter-spacing:1px;color:var(--muted);
  background:rgba(255,255,255,.04);
  border-bottom:1px solid var(--line);
}
.board-row{
  border-bottom:1px solid var(--line);
  font-size:15px;
  transition:background .18s var(--ease);
}
.board-row:last-child{border-bottom:0;}
.board-row:hover{background:rgba(124,107,255,.08);}
.board-name{font-weight:700;display:flex;align-items:center;gap:10px;}
.board-name i{
  width:8px;height:8px;border-radius:50%;background:var(--violet);flex:none;
  box-shadow:0 0 10px rgba(124,107,255,.8);
}
.board-time{color:var(--muted);font-size:14px;font-variant-numeric:tabular-nums;}
.board-resp{color:var(--text);font-variant-numeric:tabular-nums;font-weight:600;}
.status{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--pill);
  font-size:12px;font-weight:600;white-space:nowrap;
}
.status.ok{color:var(--mint);background:rgba(33,230,193,.12);border:1px solid rgba(33,230,193,.32);}
.status.alt{color:#BEB6FF;background:rgba(124,107,255,.16);border:1px solid rgba(124,107,255,.4);}
.status.wait{color:var(--gold);background:rgba(255,198,92,.12);border:1px solid rgba(255,198,92,.34);}
.status.off{color:#8A93A8;background:rgba(255,255,255,.06);border:1px solid var(--line);}
.board-foot{
  padding:16px 24px;font-size:13px;color:var(--muted);
  background:rgba(255,255,255,.03);border-top:1px solid var(--line);
}

/* 图文双栏 */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;}
.split-media{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);}
.split-media img{width:100%;height:100%;object-fit:cover;border-radius:0;aspect-ratio:4/3;}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,20,.08) 40%,rgba(7,10,20,.55) 100%);
}
.split-body h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:16px;font-weight:800;}
.split-body>p{color:var(--muted);font-size:15px;margin-bottom:26px;}
.alert-list{display:flex;flex-direction:column;gap:14px;}
.alert-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 18px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.035);
  border:1px solid var(--line);
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.alert-item:hover{border-color:rgba(255,107,107,.4);background:rgba(255,107,107,.06);}
.alert-badge{
  flex:none;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  font-size:13px;font-weight:700;color:var(--danger);
  background:rgba(255,107,107,.14);border:1px solid rgba(255,107,107,.34);
  font-variant-numeric:tabular-nums;
}
.alert-item strong{display:block;font-size:15px;margin-bottom:4px;color:var(--text);}
.alert-item span{font-size:14px;color:var(--muted);line-height:1.7;}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step;}
.step{
  position:relative;
  padding:28px 22px 24px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(170deg,rgba(18,26,49,.9),rgba(9,13,26,.9));
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:rgba(33,230,193,.4);box-shadow:var(--glow);}
.step-num{
  font-size:34px;font-weight:800;line-height:1;
  font-variant-numeric:tabular-nums;
  background:linear-gradient(135deg,var(--mint),var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:16px;
}
.step h3{font-size:17px;margin-bottom:10px;}
.step p{font-size:14px;color:var(--muted);line-height:1.75;}

/* FAQ */
.faq{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:rgba(18,26,49,.7);
  overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item.is-open{border-color:rgba(33,230,193,.4);box-shadow:0 0 22px rgba(33,230,193,.16);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
  position:relative;
}
.faq-item.is-open .faq-q{color:var(--mint);}
.faq-item.is-open .faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--mint);box-shadow:0 0 14px rgba(33,230,193,.7);
}
.faq-icon{
  position:relative;flex:none;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--line-strong);
  transition:transform .25s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--text);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:1.6px;}
.faq-icon::after{width:1.6px;height:10px;transition:opacity .2s var(--ease);}
.faq-item.is-open .faq-icon{transform:rotate(90deg);border-color:rgba(33,230,193,.6);background:rgba(33,230,193,.14);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .32s var(--ease);
}
.faq-a p{
  padding:0 24px 22px;font-size:15px;color:var(--muted);line-height:1.85;
}
.faq-item.is-open .faq-a{max-height:400px;}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;
  padding:62px 0;
  background:linear-gradient(135deg,rgba(33,230,193,.16),rgba(124,107,255,.22) 55%,rgba(124,107,255,.1));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:34px 34px;opacity:.06;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;margin-bottom:10px;}
.cta-inner p{font-size:15px;color:#C7D0E4;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{
  background:var(--bg-2);
  border-top:1px solid var(--line);
  padding:64px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-intro{font-size:14px;color:var(--muted);line-height:1.85;max-width:300px;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{font-size:14px;color:var(--muted);}
.footer-col ul a:hover{color:var(--mint);}
.footer-contact strong{display:block;font-size:14px;margin-bottom:6px;color:var(--text);}
.footer-contact p{font-size:13px;color:var(--muted);line-height:1.75;margin-bottom:16px;}
.footer-contact p:last-child{margin-bottom:0;}
.footer-contact p a{color:var(--mint);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding-top:22px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--mint);}
.footer-bottom .dot{display:inline-block;width:4px;height:4px;border-radius:50%;background:var(--line-strong);margin:0 8px;vertical-align:2px;}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:900px){
  .nav-side.nav-left,.nav-side.nav-right{display:none;}
  .nav-wrap{grid-template-columns:auto 1fr auto;height:64px;}
  .brand{justify-self:start;}
  .mobile-toggle{display:grid;}
  .page-banner{padding:52px 0 64px;}
  .banner-stats{gap:26px;}
  .stat .stat-num{font-size:22px;}
  .section{padding:64px 0;}
  .section-head{margin-bottom:30px;}
  .board-head{display:none;}
  .board-row{
    grid-template-columns:1fr 1fr;
    gap:8px 16px;
    padding:18px 20px;
    font-size:14px;
  }
  .board-row>div:nth-child(1){grid-column:1/-1;}
  .board-row>div::before{
    content:attr(data-label);
    display:block;font-size:11px;letter-spacing:.6px;color:var(--muted);
    margin-bottom:2px;
  }
  .board-row>div:nth-child(1)::before{display:none;}
}
@media (max-width:640px){
  body{font-size:15px;}
  .grid-3{grid-template-columns:1fr;gap:18px;}
  .steps{grid-template-columns:1fr;gap:16px;}
  .banner-desc{font-size:15px;}
  .banner-actions{gap:12px;}
  .banner-actions .btn{flex:1 1 auto;padding:12px 20px;font-size:14px;}
  .filter-bar{margin-top:-24px;padding:12px;}
  .chip-note{display:none;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-intro{max-width:none;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-inner{gap:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .faq-q{font-size:15px;padding:18px 20px;}
  .faq-a p{padding:0 20px 20px;font-size:14px;}
  .card{padding:22px 20px;}
  .board-foot{font-size:12px;}
  .brand-text{font-size:15px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important;}
  .card:hover,.step:hover,.btn:hover{transform:none;}
}

/* roulang page: category3 */
:root{
  --bg:#070A14;
  --bg-2:#0C1122;
  --panel:#121A31;
  --panel-soft:rgba(18,26,49,.66);
  --brand:#21E6C1;
  --brand-dim:rgba(33,230,193,.14);
  --accent:#7C6BFF;
  --gold:#FFC65C;
  --text:#E8EDF7;
  --muted:#9AA6BF;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --radius:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --shadow:0 12px 32px rgba(0,0,0,.45);
  --glow:0 0 24px rgba(33,230,193,.26);
  --btn-glow:0 8px 28px rgba(33,230,193,.35);
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out,opacity .18s ease-out}
a:hover{color:#5cf0d6}
a:visited{color:var(--brand)}
button{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:8px}
.container{width:min(1280px,92vw);margin-inline:auto}
.section{padding:96px 0}
.section-tight{padding:40px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px}
.section-head h2{font-size:30px;line-height:1.25;font-weight:700;letter-spacing:-.3px}
.section-head p{color:var(--muted);font-size:15px;margin-top:8px;max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;color:var(--brand);
  border:1px solid rgba(33,230,193,.45);border-radius:999px;
  padding:6px 14px;background:rgba(33,230,193,.07);
}
.mono{font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(7,10,20,.62);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid transparent;
  transition:background .22s ease,border-color .22s ease;
}
.site-header.is-scrolled{background:rgba(7,10,20,.9);border-bottom-color:var(--line)}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  min-height:76px;
}
.nav-side{display:flex;align-items:center;gap:4px}
.nav-right{justify-content:flex-end;gap:10px}
.nav-link{
  position:relative;
  color:var(--muted);
  font-size:15px;
  padding:8px 12px;
  border-radius:8px;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{
  content:"";
  position:absolute;left:12px;right:12px;bottom:-2px;
  height:2px;border-radius:2px;background:var(--brand);
  box-shadow:0 0 12px rgba(33,230,193,.85);
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  justify-self:center;
  color:var(--text);
  font-weight:800;
  letter-spacing:-.2px;
}
.brand:hover{color:var(--text)}
.brand-mark{
  width:30px;height:30px;display:grid;place-items:center;
  color:var(--brand);
  border-radius:10px;
  background:radial-gradient(circle at 30% 20%,rgba(33,230,193,.28),rgba(124,107,255,.18));
  border:1px solid rgba(33,230,193,.35);
  box-shadow:var(--glow);
}
.brand-mark svg{width:18px;height:18px}
.brand-text{font-size:18px;white-space:nowrap}
.icon-btn{
  width:38px;height:38px;display:grid;place-items:center;
  border-radius:50%;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-strong);
  color:var(--text);
  cursor:pointer;
  transition:background .18s ease,border-color .18s ease,color .18s ease,transform .18s ease;
}
.icon-btn svg{width:17px;height:17px}
.icon-btn:hover{border-color:rgba(33,230,193,.55);color:var(--brand);background:rgba(33,230,193,.1);transform:translateY(-1px)}
.icon-btn:active{transform:translateY(0)}
.menu-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-strong);
  color:var(--text);
  cursor:pointer;
  place-items:center;
}
.menu-toggle svg{width:20px;height:20px}
.menu-toggle:hover{border-color:rgba(33,230,193,.55);color:var(--brand)}

/* drawer */
.drawer{
  position:fixed;inset:0;z-index:120;
  background:rgba(7,10,20,.98);
  backdrop-filter:blur(14px);
  display:none;
  padding:20px 6vw 40px;
  overflow-y:auto;
}
.drawer.is-open{display:block}
.drawer-top{display:flex;align-items:center;justify-content:space-between;min-height:56px;margin-bottom:18px}
.drawer-close{
  width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.05);
  border:1px solid var(--line-strong);color:var(--text);cursor:pointer;display:grid;place-items:center;
}
.drawer-close:hover{color:var(--brand);border-color:rgba(33,230,193,.55)}
.drawer-links a{
  display:flex;align-items:center;min-height:52px;
  color:var(--text);font-size:17px;
  border-bottom:1px solid var(--line);
}
.drawer-links a:hover{color:var(--brand)}
.drawer-links a.is-active{color:var(--brand)}
.drawer-cta{margin-top:26px}
.drawer-cta .btn{width:100%}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:999px;
  font-size:15px;font-weight:600;
  padding:13px 26px;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#21E6C1,#4FD8FF);
  color:#04120f;
  box-shadow:var(--btn-glow);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 12px 36px rgba(33,230,193,.5);color:#04120f}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px rgba(33,230,193,.35)}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{border-color:rgba(33,230,193,.6);color:var(--brand);background:rgba(33,230,193,.08);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn:disabled,.btn[disabled]{
  opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;
  background:rgba(255,255,255,.06);color:var(--muted);border-color:var(--line);
}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;
  overflow:hidden;
  min-height:440px;
  display:flex;
  align-items:flex-end;
  padding:140px 0 64px;
  isolation:isolate;
}
.cat-hero::before{
  content:"";
  position:absolute;inset:0;z-index:-2;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center 32%;
  opacity:.42;
  transform:scale(1.02);
}
.cat-hero::after{
  content:"";
  position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(120% 90% at 15% 20%,rgba(33,230,193,.16),transparent 60%),
    linear-gradient(180deg,rgba(7,10,20,.9) 0%,rgba(7,10,20,.6) 42%,rgba(7,10,20,.98) 100%);
}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-bottom:20px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(255,255,255,.28)}
.breadcrumb .current{color:var(--brand)}
.cat-hero h1{
  font-size:clamp(32px,4.4vw,52px);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.5px;
  margin:16px 0 0;
}
.cat-hero .hero-sub{
  margin-top:16px;
  max-width:720px;
  color:#C3CCE0;
  font-size:16px;
}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:14px 40px;
  margin-top:30px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.hero-stats .stat{display:flex;flex-direction:column;gap:2px}
.hero-stats .stat strong{font-size:24px;font-weight:800;color:var(--brand);letter-spacing:-.4px}
.hero-stats .stat span{font-size:13px;color:var(--muted)}

/* ---------- filter ---------- */
.filter-section{padding:34px 0 8px}
.filter-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.filter-track{
  display:flex;gap:10px;
  overflow-x:auto;
  padding-bottom:6px;
  scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
}
.filter-track::-webkit-scrollbar{display:none}
.chip{
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--muted);
  border-radius:999px;
  padding:9px 18px;
  font-size:14px;
  cursor:pointer;
  white-space:nowrap;
  transition:color .18s ease,border-color .18s ease,background .18s ease,box-shadow .18s ease,transform .18s ease;
}
.chip:hover{color:var(--text);border-color:rgba(33,230,193,.5);transform:translateY(-1px)}
.chip.is-active{
  background:var(--brand);
  border-color:var(--brand);
  color:#04120f;
  font-weight:700;
  box-shadow:0 0 18px rgba(33,230,193,.32);
}
.filter-note{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px}
.live-dot{
  width:7px;height:7px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 10px rgba(33,230,193,.9);
  display:inline-block;
}

/* ---------- metrics ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.metric{
  background:linear-gradient(160deg,rgba(28,38,66,.92),rgba(12,17,34,.94));
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:var(--shadow);
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.metric:hover{border-color:rgba(33,230,193,.4);box-shadow:var(--shadow),var(--glow);transform:translateY(-2px)}
.metric strong{display:block;font-size:32px;font-weight:800;letter-spacing:-.6px;color:var(--brand);line-height:1.2}
.metric span{display:block;margin-top:6px;font-size:13px;color:var(--muted)}
.metric em{font-style:normal;color:var(--gold);font-size:13px}

/* ---------- stream list ---------- */
.stream-list{display:grid;gap:16px}
.row-card{
  display:grid;
  grid-template-columns:150px minmax(0,1fr) auto;
  grid-template-areas:"thumb body action";
  gap:22px;
  align-items:center;
  padding:18px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--panel-soft);
  box-shadow:var(--shadow);
  color:var(--text);
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease,background .18s ease;
}
.row-card:hover{
  color:var(--text);
  border-color:rgba(33,230,193,.55);
  box-shadow:var(--shadow),var(--glow);
  transform:translateY(-2px);
  background:rgba(22,32,58,.78);
}
.row-card.is-stowed{display:none}
.row-card[hidden]{display:none}
.row-thumb{
  grid-area:thumb;
  width:150px;height:96px;
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--bg-2);
}
.row-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.row-card:hover .row-thumb img{transform:scale(1.05)}
.row-body{grid-area:body;min-width:0}
.row-body h3{
  font-size:19px;line-height:1.4;font-weight:700;letter-spacing:-.2px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.row-body p{
  margin-top:8px;
  color:var(--muted);
  font-size:14px;
  line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.row-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:12px;
  font-size:13px;color:var(--muted);
}
.tag{
  display:inline-flex;align-items:center;
  padding:3px 11px;
  border-radius:999px;
  font-size:12px;
  border:1px solid rgba(124,107,255,.45);
  background:rgba(124,107,255,.14);
  color:#B9B0FF;
}
.tag-cyan{border-color:rgba(33,230,193,.45);background:rgba(33,230,193,.12);color:#7DF5E1}
.tag-gold{border-color:rgba(255,198,92,.45);background:rgba(255,198,92,.12);color:var(--gold)}
.row-action{grid-area:action;display:flex;flex-direction:column;align-items:flex-end;gap:10px;min-width:140px}
.row-time{font-size:20px;font-weight:800;letter-spacing:-.3px;color:var(--text)}
.row-action .btn{width:100%}
.list-foot{display:flex;justify-content:center;margin-top:36px}
.empty-note{margin-top:18px;font-size:13px;color:var(--muted);text-align:center}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step{
  position:relative;
  padding:28px 24px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(165deg,rgba(24,33,58,.85),rgba(12,17,34,.9));
  box-shadow:var(--shadow);
  transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.step:hover{border-color:rgba(33,230,193,.42);transform:translateY(-3px);box-shadow:var(--shadow),var(--glow)}
.step-num{
  display:inline-block;
  font-size:13px;letter-spacing:.14em;color:var(--accent);
  border:1px solid rgba(124,107,255,.4);
  border-radius:999px;padding:2px 12px;
  margin-bottom:16px;
}
.step h3{font-size:20px;font-weight:700;letter-spacing:-.2px}
.step p{margin-top:10px;color:var(--muted);font-size:14px;line-height:1.75}

/* ---------- faq ---------- */
.faq-list{max-width:880px;display:grid;gap:14px}
.faq-item{
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  background:rgba(18,26,49,.6);
  overflow:hidden;
  transition:border-color .18s ease,background .18s ease;
}
.faq-item:hover{border-color:rgba(255,255,255,.18)}
.faq-item.is-open{border-color:rgba(33,230,193,.45);background:rgba(21,31,56,.78)}
.faq-item.is-open::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);
}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  width:100%;padding:20px 22px;
  background:none;border:0;
  color:var(--text);
  font-size:17px;font-weight:600;text-align:left;
  cursor:pointer;
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  flex:none;width:24px;height:24px;display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line-strong);
  color:var(--brand);font-size:16px;line-height:1;
  transition:transform .22s ease,border-color .22s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);border-color:rgba(33,230,193,.6)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding:0 22px 22px;color:var(--muted);font-size:15px;line-height:1.8}

/* ---------- cta ---------- */
.cta-band{padding:0 0 96px}
.cta-inner{
  position:relative;
  overflow:hidden;
  min-height:320px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  padding:56px 52px;
  border-radius:22px;
  border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(135deg,rgba(33,230,193,.2),rgba(124,107,255,.26));
  box-shadow:var(--shadow);
}
.cta-inner::before{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:44px 44px;
  opacity:.08;
  pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:660px}
.cta-copy h2{font-size:30px;line-height:1.3;font-weight:800;letter-spacing:-.4px}
.cta-copy p{margin-top:12px;color:#D3DAEB;font-size:15px}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg-2);
  padding:72px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.25fr;
  gap:44px;
}
.footer-brand .brand{justify-self:start}
.footer-intro{margin-top:16px;color:var(--muted);font-size:14px;line-height:1.8;max-width:340px}
.footer-col h4{font-size:15px;font-weight:700;color:var(--text);margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{color:var(--muted);font-size:14px}
.footer-col ul li a:hover{color:var(--brand)}
.footer-contact strong{display:block;font-size:13px;color:var(--brand);margin:14px 0 4px;font-weight:600}
.footer-contact strong:first-of-type{margin-top:0}
.footer-contact p{color:var(--muted);font-size:13px;line-height:1.75}
.footer-contact p a{color:var(--muted)}
.footer-contact p a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:52px;padding-top:22px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--brand)}
.footer-bottom .dot{
  display:inline-block;width:3px;height:3px;border-radius:50%;
  background:rgba(255,255,255,.3);margin:0 10px;vertical-align:middle;
}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .section{padding:80px 0}
  .cta-band{padding-bottom:80px}
}
@media (max-width:1024px){
  .section{padding:72px 0}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .row-card{grid-template-columns:132px minmax(0,1fr);grid-template-areas:"thumb body" "action action";gap:16px 20px}
  .row-thumb{width:132px;height:88px}
  .row-action{flex-direction:row;align-items:center;justify-content:space-between;min-width:0}
  .row-action .btn{width:auto}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:44px 36px}
  .cta-actions{width:100%}
}
@media (max-width:768px){
  .header-inner{grid-template-columns:auto 1fr auto;min-height:56px;gap:10px}
  .nav-side{display:none}
  .brand{justify-self:start;gap:8px}
  .brand-text{font-size:16px}
  .brand-mark{width:26px;height:26px}
  .menu-toggle{display:grid}
  .cat-hero{min-height:380px;padding:110px 0 48px}
  .cat-hero h1{font-size:32px}
  .cat-hero .hero-sub{font-size:15px}
  .hero-stats{gap:12px 28px;margin-top:24px;padding-top:20px}
  .hero-stats .stat strong{font-size:20px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:26px}
  .section-head h2{font-size:22px}
  .metrics{grid-template-columns:1fr 1fr;gap:14px}
  .metric{padding:18px}
  .metric strong{font-size:26px}
  .row-card{padding:14px;gap:14px}
  .row-thumb{width:104px;height:78px}
  .row-body h3{font-size:17px}
  .row-action{flex-wrap:wrap;gap:10px}
  .row-time{font-size:17px}
  .faq-q{font-size:15px;padding:16px 18px}
  .faq-a p{padding:0 18px 18px;font-size:14px}
  .cta-inner{padding:36px 24px;min-height:auto}
  .cta-copy h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .site-footer{padding-top:52px}
}
@media (max-width:520px){
  .metrics{grid-template-columns:1fr}
  .row-card{grid-template-columns:88px minmax(0,1fr);grid-template-areas:"thumb body" "action action"}
  .row-thumb{width:88px;height:70px}
  .btn{padding:12px 20px;font-size:14px}
  .brand-text{font-size:15px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:opacity .18s ease !important}
  html{scroll-behavior:auto}
}

/* roulang page: category4 */
:root{
  --bg:#070A14;
  --bg-2:#0C1122;
  --panel:#121A31;
  --mint:#21E6C1;
  --violet:#7C6BFF;
  --gold:#FFC65C;
  --text:#E8EDF7;
  --muted:#9AA6BF;
  --line:rgba(255,255,255,0.08);
  --line-strong:rgba(255,255,255,0.14);
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --shadow-card:0 12px 32px rgba(0,0,0,0.45);
  --shadow-glow:0 0 24px rgba(33,230,193,0.28);
  --shadow-btn:0 8px 28px rgba(33,230,193,0.35);
  --shadow-btn-hover:0 12px 36px rgba(33,230,193,0.5);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:
    radial-gradient(900px 520px at 82% -8%, rgba(124,107,255,0.14), transparent 62%),
    radial-gradient(760px 460px at 6% 4%, rgba(33,230,193,0.10), transparent 60%),
    var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--mint);text-decoration:none;transition:color .18s ease-out,opacity .18s ease-out;}
a:visited{color:var(--mint);}
a:hover{color:#5CF3D8;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-0.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
svg{display:block;}
:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:6px;}
.container{width:min(1280px,92vw);margin:0 auto;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(7,10,20,0.45);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid transparent;
  transition:background .25s ease-out,border-color .25s ease-out,box-shadow .25s ease-out;
}
.site-header.is-scrolled{
  background:rgba(7,10,20,0.86);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(0,0,0,0.42);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:76px;
}
.nav-side{display:flex;align-items:center;gap:22px;flex:1 1 0;min-width:0;}
.nav-left{justify-content:flex-start;}
.nav-right{justify-content:flex-end;gap:18px;}
.nav-link{
  position:relative;
  font-size:14.5px;
  color:var(--muted);
  padding:6px 2px;
  white-space:nowrap;
  transition:color .18s ease-out;
}
.nav-link:hover{color:var(--text);}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--mint);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .18s ease-out;
  box-shadow:0 0 10px rgba(33,230,193,0.8);
}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--text);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active::before{
  content:"";
  position:absolute;
  left:50%;top:-7px;
  width:5px;height:5px;
  margin-left:-2.5px;
  border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 10px var(--mint);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  flex:0 0 auto;
  padding:4px 8px;
  border-radius:999px;
}
.brand:visited{color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:11px;
  color:var(--mint);
  background:linear-gradient(135deg,rgba(33,230,193,0.18),rgba(124,107,255,0.22));
  border:1px solid rgba(33,230,193,0.35);
  box-shadow:0 0 18px rgba(33,230,193,0.22);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{
  font-size:16px;
  font-weight:800;
  letter-spacing:.2px;
  white-space:nowrap;
}
.icon-btn{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,0.04);
  color:var(--muted);
  transition:color .18s ease-out,border-color .18s ease-out,background .18s ease-out,transform .18s ease-out;
}
.icon-btn:hover{color:var(--mint);border-color:rgba(33,230,193,0.45);background:rgba(33,230,193,0.08);transform:translateY(-1px);}
.icon-btn:active{transform:translateY(0);}
.icon-btn svg{width:18px;height:18px;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 22px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  letter-spacing:.3px;
  white-space:nowrap;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.btn-primary{
  color:#04201C;
  background:linear-gradient(135deg,#21E6C1,#4BE8D0);
  box-shadow:var(--shadow-btn);
}
.btn-primary:visited{color:#04201C;}
.btn-primary:hover{color:#04201C;transform:translateY(-1px);box-shadow:var(--shadow-btn-hover);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 16px rgba(33,230,193,0.32);}
.btn-ghost{
  color:var(--text);
  background:rgba(255,255,255,0.05);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(8px);
}
.btn-ghost:visited{color:var(--text);}
.btn-ghost:hover{color:var(--mint);border-color:rgba(33,230,193,0.5);background:rgba(33,230,193,0.08);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
.nav-cta{padding:9px 18px;font-size:13.5px;}
.menu-btn{display:none;}

/* mobile drawer */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:90;
  background:rgba(7,10,20,0.97);
  backdrop-filter:blur(20px);
  padding:22px min(6vw,28px) 40px;
  display:none;
  flex-direction:column;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:flex;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.drawer-links{display:flex;flex-direction:column;margin-top:10px;}
.drawer-links a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:52px;
  line-height:52px;
  font-size:16px;
  color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-links a.is-active{color:var(--mint);}
.drawer-links a span{color:var(--muted);font-size:12px;}
.drawer-cta{margin-top:26px;display:flex;flex-direction:column;gap:12px;}
.drawer-cta .btn{width:100%;padding:14px 22px;}
body.menu-open{overflow:hidden;}

/* ============ 分类头图 ============ */
.cat-hero{
  position:relative;
  padding:120px 0 72px;
  background:
    linear-gradient(180deg,rgba(7,10,20,0.62) 0%,rgba(7,10,20,0.80) 48%,#070A14 100%),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  overflow:hidden;
}
.cat-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(520px 300px at 88% 18%, rgba(255,198,92,0.14), transparent 70%),
    radial-gradient(600px 340px at 12% 88%, rgba(33,230,193,0.10), transparent 72%);
  opacity:.9;
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:22px;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--mint);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--mint);}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 14px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:1px;
  color:var(--gold);
  border:1px solid rgba(255,198,92,0.42);
  background:rgba(255,198,92,0.08);
  margin-bottom:20px;
}
.hero-tag i{
  width:6px;height:6px;border-radius:50%;
  background:var(--gold);
  box-shadow:0 0 8px var(--gold);
  display:inline-block;
}
.cat-hero h1{
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-0.5px;
  max-width:820px;
}
.cat-hero h1 em{
  font-style:normal;
  color:var(--mint);
}
.hero-lead{
  margin-top:18px;
  max-width:660px;
  font-size:16px;
  line-height:1.8;
  color:#B9C4DA;
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:36px;
  margin-top:34px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.stat-item strong{
  display:block;
  font-size:26px;
  font-weight:800;
  color:var(--gold);
  line-height:1.2;
}
.stat-item span{
  display:block;
  margin-top:4px;
  font-size:13px;
  color:var(--muted);
}

/* ============ 筛选条 ============ */
.filter-bar{
  position:relative;
  margin-top:-34px;
  z-index:5;
}
.filter-track{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding:14px 6px;
  background:rgba(12,17,34,0.86);
  border:1px solid var(--line);
  border-radius:999px;
  backdrop-filter:blur(14px);
  scrollbar-width:none;
}
.filter-track::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;
  padding:8px 18px;
  border-radius:999px;
  font-size:13.5px;
  color:var(--muted);
  border:1px solid var(--line);
  background:rgba(255,255,255,0.03);
  transition:color .18s ease-out,background .18s ease-out,border-color .18s ease-out,transform .18s ease-out;
}
.chip:hover{color:var(--text);border-color:var(--line-strong);transform:translateY(-1px);}
.chip.is-active{
  color:#04201C;
  background:linear-gradient(135deg,#FFC65C,#FFD98A);
  border-color:transparent;
  font-weight:700;
  box-shadow:0 6px 20px rgba(255,198,92,0.28);
}

/* ============ 通用板块 ============ */
.section{padding:80px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
  flex-wrap:wrap;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,31px);
  font-weight:700;
}
.section-head .sub{
  margin-top:8px;
  font-size:14.5px;
  color:var(--muted);
  max-width:620px;
}
.link-more{
  font-size:14px;
  color:var(--mint);
  display:inline-flex;
  align-items:center;
  gap:6px;
  white-space:nowrap;
}
.link-more:hover{gap:10px;}

/* ============ 2 + 1 错落网格 ============ */
.stagger-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
}
.span-7{grid-column:span 7;}
.span-5{grid-column:span 5;}
.span-8{grid-column:span 8;}
.span-4{grid-column:span 4;}
.offset-down{margin-top:48px;}

.guide-card{
  position:relative;
  display:flex;
  flex-direction:column;
  border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(255,255,255,0.055),rgba(255,255,255,0.02));
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.guide-card::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.22),transparent);
  pointer-events:none;
}
.guide-card:hover{
  transform:translateY(-3px);
  border-color:rgba(33,230,193,0.4);
  box-shadow:var(--shadow-card),var(--shadow-glow);
}
.card-media{
  position:relative;
  overflow:hidden;
  background:linear-gradient(135deg,rgba(33,230,193,0.2),rgba(124,107,255,0.24));
}
.guide-card.card-lg .card-media{aspect-ratio:16/9;}
.guide-card.card-md .card-media{aspect-ratio:4/3;}
.card-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .28s ease-out;
}
.guide-card:hover .card-media img{transform:scale(1.04);}
.card-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,10,20,0) 42%,rgba(7,10,20,0.78) 100%);
}
.card-badge{
  position:absolute;
  top:14px;left:14px;
  z-index:2;
  padding:5px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  color:#04201C;
  background:linear-gradient(135deg,#FFC65C,#FFD98A);
  box-shadow:0 6px 18px rgba(255,198,92,0.32);
}
.card-badge.tag-violet{
  color:#0B0722;
  background:linear-gradient(135deg,#7C6BFF,#A399FF);
  box-shadow:0 6px 18px rgba(124,107,255,0.34);
}
.card-hot{
  position:absolute;
  top:14px;right:14px;
  z-index:2;
  padding:4px 11px;
  border-radius:999px;
  font-size:12px;
  color:var(--gold);
  border:1px solid rgba(255,198,92,0.45);
  background:rgba(7,10,20,0.6);
  backdrop-filter:blur(6px);
}
.card-body{
  padding:22px 24px 24px;
  display:flex;
  flex-direction:column;
  gap:12px;
  flex:1 1 auto;
}
.card-body h3{
  font-size:20px;
  font-weight:700;
  line-height:1.35;
}
.guide-card.card-lg:hover .card-body h3{color:var(--mint);}
.card-body p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--muted);
}
.card-meta{
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:12.5px;
  color:var(--muted);
}
.tag-pill{
  display:inline-flex;
  align-items:center;
  padding:3px 10px;
  border-radius:999px;
  font-size:12px;
  color:var(--mint);
  border:1px solid rgba(33,230,193,0.35);
  background:rgba(33,230,193,0.07);
}
.tag-pill.gold{
  color:var(--gold);
  border-color:rgba(255,198,92,0.38);
  background:rgba(255,198,92,0.08);
}
.card-text{
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:16px;
  padding:34px 30px;
  border-radius:var(--radius-lg);
  border:1px solid rgba(255,198,92,0.22);
  background:
    radial-gradient(420px 220px at 100% 0%, rgba(255,198,92,0.14), transparent 70%),
    linear-gradient(160deg,rgba(124,107,255,0.16),rgba(33,230,193,0.08));
  box-shadow:var(--shadow-card);
}
.card-text h3{font-size:21px;}
.card-text p{font-size:14.5px;color:#B9C4DA;line-height:1.8;}
.card-text .mini-list{display:flex;flex-direction:column;gap:10px;}
.card-text .mini-list li{
  display:flex;
  gap:10px;
  font-size:14px;
  color:#C7D1E4;
}
.card-text .mini-list li::before{
  content:"";
  flex:0 0 auto;
  width:6px;height:6px;
  margin-top:9px;
  border-radius:50%;
  background:var(--gold);
  box-shadow:0 0 8px rgba(255,198,92,0.7);
}
.load-more-wrap{
  display:flex;
  justify-content:center;
  margin-top:44px;
}
.is-hidden{display:none !important;}

/* ============ 三步流程 ============ */
.flow-section{
  padding:80px 0;
  background:linear-gradient(180deg,rgba(12,17,34,0.0),rgba(12,17,34,0.7) 30%,rgba(12,17,34,0.0));
}
.flow-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.flow-card{
  position:relative;
  padding:30px 26px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:rgba(18,26,49,0.72);
  box-shadow:var(--shadow-card);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.flow-card:hover{
  transform:translateY(-3px);
  border-color:rgba(33,230,193,0.36);
  box-shadow:var(--shadow-card),var(--shadow-glow);
}
.flow-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:46px;height:46px;
  border-radius:14px;
  font-size:16px;
  font-weight:800;
  color:var(--gold);
  border:1px solid rgba(255,198,92,0.4);
  background:rgba(255,198,92,0.08);
  font-variant-numeric:tabular-nums;
  margin-bottom:18px;
}
.flow-card h3{font-size:19px;margin-bottom:10px;}
.flow-card p{font-size:14.5px;color:var(--muted);line-height:1.8;}

/* ============ FAQ ============ */
.faq-section{padding:80px 0;}
.faq-list{
  max-width:880px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.faq-item{
  position:relative;
  border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:rgba(18,26,49,0.66);
  overflow:hidden;
  transition:border-color .18s ease-out,background .18s ease-out;
}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item[open]{
  border-color:rgba(33,230,193,0.4);
  background:rgba(18,26,49,0.92);
}
.faq-item[open]::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:var(--mint);
  box-shadow:0 0 16px rgba(33,230,193,0.6);
}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 auto;
  width:26px;height:26px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line-strong);
  color:var(--mint);
  font-size:16px;
  line-height:1;
  transition:transform .2s ease-out,background .18s ease-out,border-color .18s ease-out;
}
.faq-item[open] .faq-icon{
  transform:rotate(90deg);
  background:rgba(33,230,193,0.12);
  border-color:rgba(33,230,193,0.5);
}
.faq-answer{
  padding:0 24px 22px 24px;
  font-size:14.5px;
  line-height:1.85;
  color:var(--muted);
}

/* ============ CTA ============ */
.cta-section{padding:0 0 96px;}
.cta-banner{
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  min-height:200px;
  padding:44px 48px;
  border-radius:24px;
  border:1px solid rgba(255,255,255,0.12);
  background:linear-gradient(135deg,rgba(33,230,193,0.30),rgba(124,107,255,0.34) 62%,rgba(255,198,92,0.20));
  box-shadow:0 20px 60px rgba(0,0,0,0.5);
}
.cta-banner::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    radial-gradient(1.4px 1.4px at 12% 28%,rgba(255,255,255,0.9),transparent),
    radial-gradient(1.2px 1.2px at 34% 72%,rgba(255,255,255,0.75),transparent),
    radial-gradient(1.6px 1.6px at 62% 22%,rgba(255,255,255,0.8),transparent),
    radial-gradient(1.2px 1.2px at 84% 64%,rgba(255,255,255,0.7),transparent),
    radial-gradient(1.4px 1.4px at 48% 46%,rgba(255,255,255,0.6),transparent);
  opacity:.08;
  pointer-events:none;
}
.cta-text{position:relative;z-index:2;max-width:640px;}
.cta-text h2{
  font-size:clamp(21px,2.5vw,29px);
  font-weight:800;
  color:#FFFFFF;
  letter-spacing:-0.4px;
}
.cta-text p{
  margin-top:10px;
  font-size:14.5px;
  color:rgba(255,255,255,0.82);
}
.cta-actions{
  position:relative;
  z-index:2;
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}
.cta-actions .btn-ghost{
  color:#FFFFFF;
  border-color:rgba(255,255,255,0.5);
  background:rgba(255,255,255,0.12);
}
.cta-actions .btn-ghost:visited{color:#FFFFFF;}
.cta-actions .btn-ghost:hover{
  color:#04201C;
  background:#FFFFFF;
  border-color:#FFFFFF;
}
.cta-actions .btn-primary{
  box-shadow:0 10px 30px rgba(4,32,28,0.35);
}

/* ============ Footer ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,17,34,0.5),rgba(7,10,20,0.98));
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:52px;
}
.footer-brand .brand{padding:0;}
.footer-intro{
  margin-top:16px;
  font-size:14px;
  line-height:1.85;
  color:var(--muted);
  max-width:340px;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--text);
  margin-bottom:16px;
  letter-spacing:.4px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{
  font-size:13.5px;
  color:var(--muted);
}
.footer-col ul a:hover{color:var(--mint);}
.footer-contact strong{
  display:block;
  font-size:13px;
  color:var(--text);
  margin-bottom:5px;
  font-weight:600;
}
.footer-contact p{
  font-size:13.5px;
  color:var(--muted);
  line-height:1.8;
  margin-bottom:16px;
}
.footer-contact p:last-child{margin-bottom:0;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:22px 0 26px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--mint);}
.footer-bottom .dot{
  display:inline-block;
  width:4px;height:4px;
  margin:0 8px;
  border-radius:50%;
  background:var(--line-strong);
  vertical-align:middle;
}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .nav-side{gap:16px;}
  .nav-right{gap:14px;}
  .span-7,.span-5,.span-8,.span-4{grid-column:span 12;}
  .offset-down{margin-top:0;}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:32px;}
  .footer-contact{grid-column:span 3;}
}
@media (max-width:1024px){
  .section,.faq-section,.flow-section{padding:64px 0;}
  .flow-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
  .nav-left,.nav-right{display:none;}
  .menu-btn{display:grid;}
  .header-inner{height:64px;justify-content:space-between;}
  .brand{order:1;}
  .menu-btn{order:2;}
  .mobile-only-cta{display:inline-flex;}
}
@media (max-width:768px){
  .cat-hero{padding:52px 0 56px;min-height:0;}
  .cat-hero h1{font-size:clamp(26px,7vw,32px);}
  .hero-lead{font-size:15px;}
  .hero-stats{gap:24px;margin-top:26px;padding-top:20px;}
  .stat-item strong{font-size:21px;}
  .filter-bar{margin-top:-22px;}
  .section{padding:56px 0;}
  .flow-grid{grid-template-columns:1fr;}
  .flow-section,.faq-section{padding:56px 0;}
  .cta-banner{padding:32px 24px;min-height:0;}
  .cta-actions .btn{width:100%;}
  .cta-actions{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding-bottom:36px;}
  .footer-brand{grid-column:span 2;}
  .footer-contact{grid-column:span 2;}
  .card-body{padding:18px 18px 20px;}
  .card-body h3{font-size:18px;}
  .card-text{padding:26px 22px;}
}
@media (max-width:520px){
  .container{width:94vw;}
  .brand-text{font-size:14px;}
  .brand-mark{width:30px;height:30px;border-radius:9px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-brand,.footer-contact{grid-column:span 1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .card-media{aspect-ratio:16/10 !important;}
  .hero-stats{gap:20px;}
  .stat-item{flex:1 1 40%;}
  .faq-item summary{padding:17px 18px;font-size:15px;}
  .faq-answer{padding:0 18px 18px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important;}
  .guide-card:hover,.flow-card:hover,.btn:hover{transform:none;}
  .guide-card:hover .card-media img{transform:none;}
}