/* roulang page: index */
:root{
  --bg:#070A14;
  --bg-soft:#0B1020;
  --surface:rgba(255,255,255,.06);
  --surface-2:rgba(255,255,255,.04);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.16);
  --brand:#2CE0B8;
  --brand-soft:rgba(44,224,184,.12);
  --violet:#7C6BFF;
  --violet-soft:rgba(124,107,255,.14);
  --accent:#FF8A3D;
  --accent-soft:rgba(255,138,61,.14);
  --text:#EDF2FF;
  --text-2:#A7B3CC;
  --text-3:#6C7896;
  --ok:#34D399;
  --radius-c:20px;
  --radius-s:14px;
  --radius-i:12px;
  --radius-p:999px;
  --shadow-card:0 12px 32px rgba(0,0,0,.45);
  --ease:cubic-bezier(.2,.8,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
section{position:relative;z-index:1;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section-head{margin-bottom:40px;max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--brand);
  background:var(--brand-soft);border:1px solid rgba(44,224,184,.28);
  padding:6px 14px;border-radius:var(--radius-p);margin-bottom:18px;
  font-weight:600;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(44,224,184,.7);}
h1{font-size:clamp(30px,4.2vw,50px);line-height:1.2;font-weight:800;letter-spacing:-.01em;}
h2{font-size:clamp(24px,2.8vw,32px);line-height:1.3;font-weight:700;letter-spacing:-.005em;}
h3{font-size:20px;line-height:1.5;font-weight:600;}
p{color:var(--text-2);}
.lead{font-size:17px;line-height:1.85;color:var(--text-2);}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,10,20,.62);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled{background:rgba(7,10,20,.9);box-shadow:0 10px 30px rgba(0,0,0,.4);}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:44px;height:44px;border-radius:14px;
  background:linear-gradient(140deg,#2CE0B8 0%,#5FC8FF 48%,#7C6BFF 100%);
  display:grid;place-items:center;
  box-shadow:0 8px 22px rgba(44,224,184,.22);
  flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px;display:block;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:800;color:var(--text);letter-spacing:.01em;white-space:nowrap;}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.18em;text-transform:uppercase;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:10px 14px;border-radius:var(--radius-i);
  font-size:15px;font-weight:500;color:var(--text-2);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),rgba(44,224,184,0));
  opacity:0;transform:scaleX(.6);transform-origin:left;
  transition:opacity .2s var(--ease),transform .2s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link:hover::after,.nav-link.is-active::after{opacity:1;transform:scaleX(1);}
.nav-link.is-active{color:var(--text);font-weight:600;}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.status-pill{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--brand);
  background:var(--brand-soft);border:1px solid rgba(44,224,184,.3);
  padding:7px 12px;border-radius:var(--radius-p);white-space:nowrap;
}
.status-dot{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(44,224,184,.85);animation:blink 2.4s var(--ease) infinite;}
@keyframes blink{0%,100%{opacity:1;}50%{opacity:.35;}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-p);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn:active{transform:translateY(1px) scale(.99);}
.btn-primary{
  background:linear-gradient(135deg,#FF9A55,#FF7A28);
  color:#1A0D02;
  box-shadow:0 0 24px rgba(255,138,61,.35);
}
.btn-primary:hover{background:linear-gradient(135deg,#FFAA6C,#FF8A3D);box-shadow:0 0 32px rgba(255,138,61,.5);transform:translateY(-2px);}
.btn-ghost{
  background:rgba(255,255,255,.06);
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(44,224,184,.5);color:#fff;transform:translateY(-2px);}
.btn-brand{
  background:linear-gradient(135deg,#2CE0B8,#1FB79A);
  color:#04241D;
  box-shadow:0 0 22px rgba(44,224,184,.28);
}
.btn-brand:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(44,224,184,.45);}
.btn-block{width:100%;}
.btn-sm{padding:10px 18px;font-size:14px;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.4;
}
.hero-veil{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(7,10,20,.78) 0%,rgba(7,10,20,.92) 62%,rgba(7,10,20,.98) 100%),
    radial-gradient(900px 520px at 82% 14%,rgba(44,224,184,.20),transparent 62%),
    radial-gradient(760px 480px at 6% 92%,rgba(124,107,255,.18),transparent 66%);
}
.hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center;
  padding:88px 0 80px;
}
.hero-title{margin:16px 0 18px;}
.hero-title em{font-style:normal;color:var(--brand);}
.hero-sub{font-size:17px;line-height:1.85;color:var(--text-2);max-width:600px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;font-size:14px;color:var(--text-3);}
.hero-meta span{display:inline-flex;align-items:center;gap:8px;}
.hero-meta i{width:5px;height:5px;border-radius:50%;background:var(--brand);display:inline-block;}
.count-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:32px;max-width:520px;}
.count-cell{
  background:rgba(255,255,255,.055);
  border:1px solid var(--line);
  border-radius:var(--radius-s);
  padding:14px 10px;text-align:center;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.count-num{font-size:22px;font-weight:800;color:var(--text);font-variant-numeric:tabular-nums;line-height:1.25;}
.count-label{font-size:12px;color:var(--text-3);margin-top:2px;letter-spacing:.04em;}
.hero-card{
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  border-radius:var(--radius-c);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  padding:24px;
  transform:translateY(-6px);
}
.hero-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;}
.hero-card-head h2{font-size:17px;font-weight:700;}
.hero-card-cover{
  border-radius:var(--radius-s);overflow:hidden;border:1px solid var(--line);
  aspect-ratio:16/9;position:relative;margin-bottom:18px;
}
.hero-card-cover img{width:100%;height:100%;object-fit:cover;}
.hero-card-cover .cover-tag{
  position:absolute;left:12px;bottom:12px;
  font-size:12px;color:#04241D;background:var(--brand);
  padding:3px 10px;border-radius:var(--radius-p);font-weight:700;
}
.kv-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.09);font-size:14px;}
.kv-row:last-of-type{border-bottom:0;}
.kv-row span{color:var(--text-3);}
.kv-row strong{color:var(--text);font-weight:600;font-variant-numeric:tabular-nums;}

/* ---------- stat strip ---------- */
.stat-strip{border-bottom:1px solid var(--line);background:var(--bg-soft);}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat-item{padding:32px 24px;border-left:1px solid var(--line);}
.stat-item: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:14px;color:var(--text-2);margin-top:4px;}
.stat-desc{font-size:13px;color:var(--text-3);margin-top:2px;}

/* ---------- timeline ---------- */
.tl{position:relative;margin-top:16px;}
.tl::before{
  content:"";position:absolute;left:50%;top:6px;bottom:6px;width:1px;
  background:linear-gradient(180deg,rgba(44,224,184,0),rgba(44,224,184,.55),rgba(124,107,255,.4),rgba(44,224,184,0));
  transform:translateX(-.5px);
}
.tl-item{position:relative;width:50%;padding:0 44px 28px 0;}
.tl-item:nth-child(even){margin-left:50%;padding:0 0 28px 44px;}
.tl-dot{
  position:absolute;top:26px;right:-6px;width:12px;height:12px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 12px rgba(44,224,184,.7);
  border:2px solid #0A0F1D;
}
.tl-item:nth-child(even) .tl-dot{left:-6px;right:auto;background:var(--violet);box-shadow:0 0 12px rgba(124,107,255,.7);}
.tl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-c);
  padding:22px 24px;box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.tl-card:hover{transform:translateY(-4px);border-color:rgba(44,224,184,.42);}
.tl-time{font-size:13px;color:var(--brand);font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:.06em;margin-bottom:8px;}
.tl-card h3{font-size:19px;margin-bottom:8px;}
.tl-card p{font-size:14.5px;line-height:1.8;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;padding:4px 10px;border-radius:var(--radius-p);
  background:var(--brand-soft);color:var(--brand);border:1px solid rgba(44,224,184,.26);
  font-weight:600;letter-spacing:.02em;
}
.tag--violet{background:var(--violet-soft);color:#B7ADFF;border-color:rgba(124,107,255,.3);}
.tag--accent{background:var(--accent-soft);color:#FFB07A;border-color:rgba(255,138,61,.3);}
.tag--muted{background:rgba(255,255,255,.06);color:var(--text-2);border-color:var(--line);}

/* ---------- feature grid ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.feature-grid > *:nth-child(even){transform:translateY(40px);}
.feature-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-c);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.feature-card:hover{transform:translateY(-6px);border-color:rgba(44,224,184,.4);}
.feature-card:hover img{transform:scale(1.03);}
.feature-media{aspect-ratio:16/10;overflow:hidden;position:relative;}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.feature-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,10,20,0) 40%,rgba(7,10,20,.65) 100%);}
.feature-body{padding:24px;}
.feature-body h3{margin-bottom:10px;}
.feature-body p{font-size:15px;line-height:1.8;}
.feature-list{margin-top:16px;display:grid;gap:9px;}
.feature-list li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7;}
.feature-list li::before{
  content:"";flex:0 0 auto;width:16px;height:16px;margin-top:4px;border-radius:50%;
  background:var(--brand-soft);border:1px solid rgba(44,224,184,.45);
  background-image:linear-gradient(45deg,transparent 45%,var(--brand) 45%,var(--brand) 55%,transparent 55%);
}

/* ---------- plan compare ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.plan{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-c);
  padding:28px 24px;box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.plan:hover{transform:translateY(-6px);border-color:var(--line-strong);}
.plan--featured{
  transform:scale(1.04);
  border-color:rgba(44,224,184,.75);
  box-shadow:0 0 0 1px rgba(44,224,184,.55) inset,0 0 28px rgba(44,224,184,.22),var(--shadow-card);
  background:linear-gradient(180deg,rgba(44,224,184,.09),rgba(255,255,255,.05) 42%);
}
.plan--featured:hover{transform:scale(1.04) translateY(-4px);}
.plan-badge{
  align-self:flex-start;font-size:12px;font-weight:700;color:#04241D;
  background:var(--brand);padding:4px 12px;border-radius:var(--radius-p);margin-bottom:14px;
}
.plan h3{font-size:18px;margin-bottom:6px;}
.plan-note{font-size:13px;color:var(--text-3);min-height:22px;}
.plan-price{display:flex;align-items:flex-end;gap:8px;margin:16px 0 20px;}
.plan-price strong{font-size:34px;font-weight:800;line-height:1;color:var(--text);font-variant-numeric:tabular-nums;}
.plan-price span{font-size:13px;color:var(--text-3);padding-bottom:4px;}
.plan-ul{display:grid;gap:11px;margin-bottom:24px;flex:1;}
.plan-ul li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);line-height:1.65;}
.plan-ul li::before{
  content:"";flex:0 0 auto;width:18px;height:18px;margin-top:3px;border-radius:50%;
  background:var(--brand-soft);
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232CE0B8' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-size:12px 12px;background-repeat:no-repeat;background-position:center;
}
.plan-foot{font-size:13px;color:var(--text-3);border-top:1px dashed rgba(255,255,255,.1);padding-top:16px;margin-top:4px;}

/* ---------- form ---------- */
.join-wrap{
  display:grid;grid-template-columns:.92fr 1.08fr;gap:40px;align-items:start;
}
.join-side h2{margin-bottom:16px;}
.join-points{display:grid;gap:14px;margin-top:26px;}
.join-point{
  display:flex;gap:14px;padding:16px 18px;border-radius:var(--radius-s);
  background:var(--surface-2);border:1px solid var(--line);
}
.join-point b{display:block;font-size:15px;font-weight:600;color:var(--text);margin-bottom:2px;}
.join-point p{font-size:13.5px;line-height:1.7;}
.join-point .ico{
  flex:0 0 auto;width:38px;height:38px;border-radius:var(--radius-i);
  display:grid;place-items:center;font-size:16px;
  background:var(--brand-soft);border:1px solid rgba(44,224,184,.3);color:var(--brand);
}
.form-card{
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  border-radius:var(--radius-c);padding:28px;box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.form-card h3{font-size:18px;margin-bottom:6px;}
.form-hint{font-size:13.5px;color:var(--text-3);margin-bottom:22px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field--full{grid-column:1 / -1;}
.field label{font-size:13.5px;color:var(--text-2);font-weight:600;letter-spacing:.02em;}
.field input,.field select,.field textarea{
  width:100%;background:rgba(7,10,20,.55);
  border:1px solid var(--line);border-radius:var(--radius-i);
  padding:12px 14px;color:var(--text);line-height:1.5;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field textarea{min-height:96px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:#5C6884;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);background:rgba(7,10,20,.8);
  box-shadow:0 0 0 3px rgba(44,224,184,.15);
}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23A7B3CC' stroke-width='2' stroke-linecap='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;background-size:16px;padding-right:38px;}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--text-2);line-height:1.7;}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand);flex:0 0 auto;}
.form-alert{display:none;align-items:center;gap:10px;font-size:13.5px;padding:11px 14px;border-radius:var(--radius-i);margin-top:14px;}
.form-alert.is-ok{display:flex;background:rgba(52,211,153,.12);border:1px solid rgba(52,211,153,.35);color:#7FE9C1;}
.form-alert.is-err{display:flex;background:rgba(255,92,122,.12);border:1px solid rgba(255,92,122,.35);color:#FFA3B4;}

/* ---------- news / CMS ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-c);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(44,224,184,.4);}
.news-cover{display:block;aspect-ratio:16/9;overflow:hidden;position:relative;}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.news-card:hover .news-cover img{transform:scale(1.03);}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.news-body h3{font-size:17px;line-height:1.55;margin:10px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body h3 a{transition:color .2s var(--ease);}
.news-body h3 a:hover{color:var(--brand);}
.news-body p{font-size:14px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--text-3);}
.news-foot .num{font-variant-numeric:tabular-nums;}
.arrow-link{color:var(--brand);font-weight:600;transition:transform .2s var(--ease);display:inline-flex;gap:5px;align-items:center;}
.arrow-link:hover{transform:translateX(3px);}
.empty-card{
  grid-column:1 / -1;text-align:center;padding:56px 24px;
  background:var(--surface-2);border:1px dashed var(--line-strong);border-radius:var(--radius-c);
}
.empty-card .ico{
  width:52px;height:52px;margin:0 auto 16px;border-radius:var(--radius-i);
  display:grid;place-items:center;font-size:22px;color:var(--text-3);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.empty-card p{font-size:15px;margin-bottom:18px;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-s);
  overflow:hidden;transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item.is-open{border-color:rgba(44,224,184,.45);background:rgba(44,224,184,.05);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;color:var(--text);
  padding:18px 22px;font-size:16px;font-weight:600;text-align:left;line-height:1.6;
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;font-size:16px;font-weight:400;
  background:rgba(255,255,255,.07);border:1px solid var(--line);color:var(--brand);
  transition:transform .2s var(--ease),background .2s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--brand-soft);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s var(--ease);}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--text-2);}

/* ---------- final cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--bg-soft);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;opacity:.22;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(720px 360px at 50% 0%,rgba(44,224,184,.16),transparent 68%),linear-gradient(180deg,rgba(7,10,20,.7),rgba(7,10,20,.95));
}
.cta-inner{position:relative;z-index:1;text-align:center;padding:72px 0;}
.cta-inner h2{margin-bottom:14px;}
.cta-inner p{max-width:660px;margin:0 auto 28px;font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}

/* ---------- footer ---------- */
.site-footer{position:relative;z-index:1;background:var(--bg);padding-top:2px;}
.site-footer::before{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,rgba(44,224,184,0),rgba(44,224,184,.7),rgba(124,107,255,.4),rgba(44,224,184,0));
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 44px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.8;max-width:320px;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a,.footer-col li{font-size:14px;color:var(--text-2);transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 32px;
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- mobile drawer ---------- */
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-i);
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  color:var(--text);align-items:center;justify-content:center;
}
.menu-toggle svg{width:20px;height:20px;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);z-index:90;
  background:#0A0F1D;border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .26s var(--ease);
  padding:22px;display:flex;flex-direction:column;gap:18px;
  box-shadow:-20px 0 50px rgba(0,0,0,.6);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer-close{width:40px;height:40px;border-radius:var(--radius-i);background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--text);display:grid;place-items:center;font-size:18px;}
.drawer-nav{display:grid;gap:6px;}
.drawer-nav a{
  display:block;padding:13px 14px;border-radius:var(--radius-i);
  font-size:15px;color:var(--text-2);border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.drawer-nav a:hover{background:rgba(255,255,255,.05);color:var(--text);}
.drawer-nav a.is-active{background:var(--brand-soft);border-color:rgba(44,224,184,.33);color:var(--brand);font-weight:600;}
.drawer-foot{margin-top:auto;display:grid;gap:12px;font-size:13px;color:var(--text-3);}
.scrim{
  position:fixed;inset:0;background:rgba(3,6,14,.68);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
  backdrop-filter:blur(2px);
}
.scrim.is-open{opacity:1;visibility:visible;}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .hero-inner{gap:36px;}
}
@media (max-width:1024px){
  .nav-links{display:none;}
  .status-pill{display:none;}
  .menu-toggle{display:flex;}
  .hero-inner{grid-template-columns:1fr;padding:64px 0 60px;gap:36px;}
  .hero-card{transform:none;max-width:560px;}
  .feature-grid > *:nth-child(even){transform:none;}
  .plan-grid{grid-template-columns:1fr;gap:18px;max-width:560px;}
  .plan--featured{transform:none;}
  .plan--featured:hover{transform:translateY(-4px);}
  .join-wrap{grid-template-columns:1fr;gap:32px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 36px;}
  .tl::before{left:7px;transform:none;}
  .tl-item,.tl-item:nth-child(even){width:100%;margin-left:0;padding:0 0 24px 34px;}
  .tl-dot,.tl-item:nth-child(even) .tl-dot{left:1px;right:auto;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .nav-bar{height:64px;}
  .brand-mark{width:40px;height:40px;border-radius:12px;}
  .brand-name{font-size:15px;}
  .brand-sub{font-size:10px;letter-spacing:.12em;}
  .stat-grid{grid-template-columns:1fr 1fr;}
  .stat-item{padding:24px 16px;border-left:1px solid var(--line);}
  .stat-item:nth-child(odd){border-left:0;padding-left:0;}
  .stat-num{font-size:26px;}
  .count-grid{grid-template-columns:repeat(2,1fr);max-width:none;}
  .feature-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .form-card{padding:22px;}
  .hero-actions .btn{flex:1 1 auto;}
  .cta-inner{padding:56px 0;}
  .section{padding:56px 0;}
  .section--tight{padding:44px 0;}
  .tl-card{padding:18px 20px;}
}
@media (max-width:520px){
  h1{font-size:28px;}
  .hero-sub,.lead{font-size:15.5px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .btn{width:100%;}
  .hero-meta{font-size:13px;gap:8px 16px;}
  .stat-item{padding:20px 12px;}
  .plan{padding:22px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
}

/* roulang page: article */
:root{
    --bg:#070A14;
    --surface:#0B1020;
    --surface-2:rgba(255,255,255,.06);
    --line:rgba(255,255,255,.10);
    --line-strong:rgba(255,255,255,.18);
    --brand:#2CE0B8;
    --brand-deep:#1AA88A;
    --accent:#7C6BFF;
    --warm:#FF8A3D;
    --text:#EDF2FF;
    --text-2:#A7B3CC;
    --text-3:#6C7896;
    --success:#34D399;
    --warn:#FFB020;
    --error:#FF5C7A;
    --radius-c:20px;
    --radius-s:14px;
    --radius-btn:999px;
    --radius-input:12px;
    --shadow-card:0 12px 32px rgba(0,0,0,.45);
    --shadow-soft:0 4px 16px rgba(0,0,0,.28);
    --ease:cubic-bezier(.2,.8,.2,1);
  }

  *,*::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:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    -moz-osx-font-smoothing:grayscale;
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    z-index:0;
    pointer-events:none;
    background-image:
      linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
      linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
    background-size:56px 56px;
    -webkit-mask-image:radial-gradient(120% 80% at 50% 0%,#000 0%,transparent 76%);
    mask-image:radial-gradient(120% 80% at 50% 0%,#000 0%,transparent 76%);
  }
  body::after{
    content:"";
    position:fixed;
    top:-240px;
    left:50%;
    width:900px;
    height:620px;
    transform:translateX(-50%);
    z-index:0;
    pointer-events:none;
    background:radial-gradient(closest-side,rgba(44,224,184,.16),rgba(124,107,255,.08) 55%,transparent 78%);
    filter:blur(10px);
  }

  h1,h2,h3,h4,h5,p{margin:0}
  ul,ol{margin:0;padding:0;list-style:none}
  img{max-width:100%;display:block;border-radius:var(--radius-s)}
  a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
  input,select,textarea{font:inherit;color:inherit}
  ::selection{background:rgba(44,224,184,.28);color:#fff}

  :focus-visible{
    outline:2px solid var(--brand);
    outline-offset:3px;
    border-radius:6px;
  }

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 24px;
    position:relative;
    z-index:1;
  }

  .num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

  /* ================= 按钮 ================= */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    border-radius:var(--radius-btn);
    font-weight:600;
    white-space:nowrap;
    transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  }
  .btn svg{width:16px;height:16px;flex-shrink:0}
  .btn-sm{padding:9px 18px;font-size:14px}
  .btn-md{padding:12px 24px;font-size:15px}
  .btn-lg{padding:15px 32px;font-size:16px}
  .btn-primary{
    background:var(--warm);
    color:#26120000;
    color:#2A1500;
    box-shadow:0 0 24px rgba(255,138,61,.35);
  }
  .btn-primary:hover{
    background:#FF9E5C;
    box-shadow:0 0 32px rgba(255,138,61,.5);
    transform:translateY(-2px);
    color:#2A1500;
  }
  .btn-primary:active{transform:translateY(0);background:#F27C2E}
  .btn-ghost{
    background:rgba(255,255,255,.06);
    border:1px solid var(--line);
    color:var(--text);
    backdrop-filter:blur(10px);
  }
  .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:var(--line-strong);transform:translateY(-2px)}
  .btn-ghost:active{transform:translateY(0);background:rgba(255,255,255,.16)}
  .btn-brand{
    background:rgba(44,224,184,.12);
    border:1px solid rgba(44,224,184,.32);
    color:var(--brand);
  }
  .btn-brand:hover{background:rgba(44,224,184,.2);transform:translateY(-2px)}

  /* ================= 顶部导航 ================= */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(7,10,20,.72);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid transparent;
    transition:background .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
  }
  .site-header.is-scrolled{
    background:rgba(7,10,20,.94);
    border-bottom-color:var(--line);
    box-shadow:0 10px 28px rgba(0,0,0,.42);
  }
  .header-inner{
    display:flex;
    align-items:center;
    gap:28px;
    height:74px;
  }
  .brand{
    display:flex;
    align-items:center;
    gap:12px;
    flex-shrink:0;
    transition:opacity .2s var(--ease);
  }
  .brand:hover{opacity:.9}
  .brand-mark{
    width:38px;
    height:38px;
    border-radius:12px;
    display:grid;
    place-items:center;
    background:linear-gradient(135deg,var(--brand),var(--brand-deep));
    box-shadow:0 0 20px rgba(44,224,184,.3);
    flex-shrink:0;
  }
  .brand-mark svg{width:22px;height:22px;border-radius:0}
  .brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
  .brand-name{
    font-size:16px;
    font-weight:800;
    letter-spacing:.2px;
    color:var(--text);
    white-space:nowrap;
  }
  .brand-sub{
    font-size:10px;
    font-weight:600;
    letter-spacing:.18em;
    color:var(--text-3);
    margin-top:3px;
    white-space:nowrap;
  }
  .nav-links{
    display:flex;
    align-items:center;
    gap:4px;
    margin-left:6px;
  }
  .nav-link{
    position:relative;
    padding:9px 14px;
    border-radius:var(--radius-btn);
    font-size:15px;
    color:var(--text-2);
    transition:color .2s var(--ease),background .2s var(--ease);
  }
  .nav-link:hover{color:var(--text);background:rgba(255,255,255,.06)}
  .nav-link.is-active{color:var(--brand);font-weight:600}
  .nav-link.is-active::after{
    content:"";
    position:absolute;
    left:14px;
    right:14px;
    bottom:0;
    height:2px;
    border-radius:2px;
    background:var(--brand);
    box-shadow:0 0 10px rgba(44,224,184,.7);
  }
  .header-actions{
    margin-left:auto;
    display:flex;
    align-items:center;
    gap:14px;
  }
  .status-badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:6px 12px;
    border-radius:var(--radius-btn);
    font-size:12.5px;
    font-weight:500;
    color:var(--brand);
    background:rgba(44,224,184,.12);
    border:1px solid rgba(44,224,184,.28);
    white-space:nowrap;
  }
  .status-badge .dot{
    width:6px;
    height:6px;
    border-radius:50%;
    background:var(--brand);
    box-shadow:0 0 8px var(--brand);
    flex-shrink:0;
  }
  .menu-toggle{
    display:none;
    width:42px;
    height:42px;
    border-radius:12px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.06);
    align-items:center;
    justify-content:center;
    transition:background .2s var(--ease),border-color .2s var(--ease);
  }
  .menu-toggle:hover{background:rgba(255,255,255,.12)}
  .menu-toggle span{
    display:block;
    width:18px;
    height:2px;
    border-radius:2px;
    background:var(--text);
    position:relative;
    transition:background .2s var(--ease);
  }
  .menu-toggle span::before,
  .menu-toggle span::after{
    content:"";
    position:absolute;
    left:0;
    width:18px;
    height:2px;
    border-radius:2px;
    background:var(--text);
    transition:transform .2s var(--ease);
  }
  .menu-toggle span::before{top:-6px}
  .menu-toggle span::after{top:6px}

  /* ================= 移动抽屉 ================= */
  .drawer-mask{
    position:fixed;
    inset:0;
    background:rgba(3,6,14,.7);
    opacity:0;
    pointer-events:none;
    transition:opacity .28s var(--ease);
    z-index:70;
    backdrop-filter:blur(2px);
  }
  .drawer-mask.is-open{opacity:1;pointer-events:auto}
  .mobile-drawer{
    position:fixed;
    top:0;
    right:0;
    height:100%;
    width:min(320px,86vw);
    background:rgba(9,13,26,.985);
    border-left:1px solid var(--line);
    transform:translateX(100%);
    transition:transform .3s var(--ease);
    z-index:80;
    padding:24px 22px 32px;
    display:flex;
    flex-direction:column;
    gap:10px;
    overflow-y:auto;
  }
  .mobile-drawer.is-open{transform:translateX(0)}
  .drawer-head{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding-bottom:18px;
    margin-bottom:8px;
    border-bottom:1px solid var(--line);
  }
  .drawer-title{font-size:14px;font-weight:700;color:var(--text-2);letter-spacing:.06em}
  .drawer-close{
    width:34px;
    height:34px;
    border-radius:10px;
    border:1px solid var(--line);
    display:grid;
    place-items:center;
    color:var(--text-3);
    font-size:18px;
    line-height:1;
  }
  .drawer-close:hover{color:var(--text);background:rgba(255,255,255,.06)}
  .drawer-link{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:13px 14px;
    border-radius:var(--radius-s);
    font-size:15px;
    color:var(--text-2);
    border:1px solid transparent;
    transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  }
  .drawer-link:hover,.drawer-link.is-active{
    background:rgba(44,224,184,.1);
    border-color:rgba(44,224,184,.26);
    color:var(--brand);
  }
  .drawer-foot{
    margin-top:auto;
    padding-top:20px;
    border-top:1px solid var(--line);
    display:grid;
    gap:12px;
  }
  .drawer-foot .status-badge{justify-content:center}

  /* ================= 面包屑 ================= */
  .breadcrumb{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:8px;
    padding:26px 0 0;
    font-size:13.5px;
    color:var(--text-3);
    position:relative;
    z-index:1;
  }
  .breadcrumb a{color:var(--text-2)}
  .breadcrumb a:hover{color:var(--brand)}
  .breadcrumb .sep{color:var(--text-3);opacity:.6}
  .breadcrumb .current{
    color:var(--text-3);
    max-width:52ch;
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
  }

  /* ================= 文章头部 ================= */
  .article-hero{
    padding:34px 0 0;
    position:relative;
    z-index:1;
  }
  .article-eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:6px 14px;
    border-radius:var(--radius-btn);
    font-size:13px;
    font-weight:600;
    color:var(--brand);
    background:rgba(44,224,184,.12);
    border:1px solid rgba(44,224,184,.28);
  }
  .article-eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 8px var(--brand)}
  .article-title{
    font-size:clamp(28px,4.2vw,44px);
    line-height:1.24;
    font-weight:800;
    letter-spacing:-.01em;
    margin:20px 0 22px;
    max-width:900px;
    color:var(--text);
  }
  .article-meta{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:10px 22px;
    font-size:13.5px;
    color:var(--text-3);
    padding-bottom:28px;
    border-bottom:1px solid var(--line);
  }
  .meta-item{display:inline-flex;align-items:center;gap:7px}
  .meta-item svg{width:15px;height:15px;opacity:.75}
  .meta-dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.6}

  /* ================= 文章布局 ================= */
  .article-layout{
    display:grid;
    grid-template-columns:minmax(0,1fr) 300px;
    gap:48px;
    padding:36px 0 0;
    position:relative;
    z-index:1;
    align-items:start;
  }
  .article-panel{
    max-width:840px;
    width:100%;
    background:rgba(255,255,255,.04);
    border:1px solid var(--line);
    border-radius:var(--radius-c);
    box-shadow:var(--shadow-card);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    padding:42px 44px 46px;
    overflow:hidden;
  }

  /* ================= 正文排版 ================= */
  .article-body{
    font-size:16.5px;
    line-height:1.9;
    color:var(--text-2);
    word-break:break-word;
  }
  .article-body > :first-child{margin-top:0}
  .article-body p{margin:0 0 1.1em;color:var(--text-2)}
  .article-body h2{
    font-size:26px;
    line-height:1.35;
    font-weight:700;
    color:var(--text);
    margin:44px 0 16px;
    padding-left:14px;
    border-left:3px solid var(--brand);
    border-radius:2px;
  }
  .article-body h3{
    font-size:21px;
    line-height:1.45;
    font-weight:600;
    color:var(--text);
    margin:34px 0 12px;
  }
  .article-body h4{
    font-size:18px;
    font-weight:600;
    color:var(--text);
    margin:26px 0 10px;
  }
  .article-body strong{color:var(--text);font-weight:700}
  .article-body a{
    color:var(--brand);
    border-bottom:1px solid rgba(44,224,184,.35);
    padding-bottom:1px;
  }
  .article-body a:hover{border-bottom-color:var(--brand);background:rgba(44,224,184,.08)}
  .article-body ul,
  .article-body ol{
    margin:0 0 1.2em;
    padding-left:0;
    display:grid;
    gap:10px;
  }
  .article-body ul li{
    position:relative;
    padding-left:24px;
    color:var(--text-2);
  }
  .article-body ul li::before{
    content:"";
    position:absolute;
    left:4px;
    top:.78em;
    width:7px;
    height:7px;
    border-radius:2px;
    background:var(--brand);
    box-shadow:0 0 8px rgba(44,224,184,.55);
  }
  .article-body ol{
    counter-reset:alist;
  }
  .article-body ol li{
    counter-increment:alist;
    position:relative;
    padding-left:32px;
    color:var(--text-2);
  }
  .article-body ol li::before{
    content:counter(alist);
    position:absolute;
    left:0;
    top:.28em;
    width:22px;
    height:22px;
    border-radius:7px;
    display:grid;
    place-items:center;
    font-size:12.5px;
    font-weight:700;
    color:var(--brand);
    background:rgba(44,224,184,.12);
    border:1px solid rgba(44,224,184,.26);
    font-variant-numeric:tabular-nums;
  }
  .article-body blockquote{
    margin:26px 0;
    padding:20px 24px;
    border-radius:var(--radius-s);
    background:rgba(124,107,255,.09);
    border:1px solid rgba(124,107,255,.24);
    border-left:3px solid var(--accent);
    color:var(--text);
    font-size:15.5px;
    line-height:1.85;
  }
  .article-body blockquote p:last-child{margin-bottom:0}
  .article-body img{
    border-radius:var(--radius-s);
    margin:24px 0;
    border:1px solid var(--line);
    background:var(--surface);
  }
  .article-body figure{margin:26px 0}
  .article-body figcaption{
    font-size:13px;
    color:var(--text-3);
    text-align:center;
    margin-top:10px;
  }
  .article-body table{
    width:100%;
    border-collapse:collapse;
    margin:26px 0;
    font-size:14.5px;
    border-radius:var(--radius-s);
    overflow:hidden;
    border:1px solid var(--line);
    display:table;
  }
  .article-body thead{
    background:rgba(44,224,184,.1);
  }
  .article-body th{
    text-align:left;
    padding:12px 16px;
    color:var(--brand);
    font-weight:600;
    border-bottom:1px solid var(--line);
    white-space:nowrap;
  }
  .article-body td{
    padding:12px 16px;
    border-bottom:1px solid rgba(255,255,255,.06);
    color:var(--text-2);
  }
  .article-body tbody tr:last-child td{border-bottom:0}
  .article-body tbody tr:hover{background:rgba(255,255,255,.03)}
  .article-body code{
    font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
    font-size:.9em;
    background:rgba(255,255,255,.08);
    border:1px solid var(--line);
    padding:2px 6px;
    border-radius:6px;
    color:var(--brand);
  }
  .article-body pre{
    background:rgba(3,6,14,.85);
    border:1px solid var(--line);
    border-radius:var(--radius-s);
    padding:18px 20px;
    overflow-x:auto;
    margin:24px 0;
    font-size:14px;
    line-height:1.7;
  }
  .article-body pre code{background:none;border:0;padding:0;color:var(--text-2)}
  .article-body hr{
    border:0;
    height:1px;
    background:linear-gradient(90deg,transparent,var(--line-strong),transparent);
    margin:36px 0;
  }

  /* 空状态 */
  .empty-state{
    text-align:center;
    padding:56px 20px;
    display:grid;
    justify-items:center;
    gap:16px;
  }
  .empty-state .empty-icon{
    width:64px;
    height:64px;
    border-radius:var(--radius-s);
    display:grid;
    place-items:center;
    background:rgba(44,224,184,.1);
    border:1px solid rgba(44,224,184,.24);
    color:var(--brand);
  }
  .empty-state h2{
    font-size:22px;
    font-weight:700;
    color:var(--text);
    margin:0;
  }
  .empty-state p{color:var(--text-3);font-size:15px;max-width:420px;margin:0}

  /* ================= 侧栏 ================= */
  .article-aside{
    display:grid;
    gap:20px;
    position:sticky;
    top:96px;
  }
  .side-card{
    background:rgba(255,255,255,.05);
    border:1px solid var(--line);
    border-radius:var(--radius-c);
    padding:24px;
    box-shadow:var(--shadow-card);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
  }
  .side-card h3{
    font-size:15px;
    font-weight:700;
    color:var(--text);
    margin:0 0 14px;
    display:flex;
    align-items:center;
    gap:8px;
  }
  .side-card h3::before{
    content:"";
    width:3px;
    height:14px;
    border-radius:2px;
    background:var(--brand);
    box-shadow:0 0 8px rgba(44,224,184,.6);
  }
  .side-card p{font-size:13.5px;color:var(--text-3);line-height:1.8;margin:0}
  .side-list{display:grid;gap:12px;margin-top:4px}
  .side-list li{
    display:flex;
    gap:10px;
    align-items:flex-start;
    font-size:13.5px;
    color:var(--text-2);
    line-height:1.7;
  }
  .side-list li .tick{
    flex-shrink:0;
    width:16px;
    height:16px;
    margin-top:4px;
    border-radius:50%;
    display:grid;
    place-items:center;
    background:rgba(44,224,184,.14);
    border:1px solid rgba(44,224,184,.3);
    color:var(--brand);
    font-size:10px;
    line-height:1;
  }
  .side-card .btn{width:100%;margin-top:16px}
  .side-note{
    font-size:12.5px;
    color:var(--text-3);
    line-height:1.7;
    margin-top:14px;
    padding-top:14px;
    border-top:1px dashed var(--line);
  }

  /* ================= 相关推荐 ================= */
  .related-section{
    padding:72px 0 0;
    position:relative;
    z-index:1;
  }
  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:20px;
    margin-bottom:28px;
    flex-wrap:wrap;
  }
  .section-head h2{
    font-size:clamp(22px,3vw,30px);
    font-weight:700;
    line-height:1.3;
    color:var(--text);
  }
  .section-head p{
    font-size:14px;
    color:var(--text-3);
    margin-top:8px;
  }
  .related-grid{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:24px;
  }
  .related-card{
    display:flex;
    flex-direction:column;
    background:rgba(255,255,255,.05);
    border:1px solid var(--line);
    border-radius:var(--radius-c);
    overflow:hidden;
    box-shadow:var(--shadow-soft);
    transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
  }
  .related-card:hover{
    transform:translateY(-4px);
    border-color:rgba(44,224,184,.4);
    box-shadow:0 18px 38px rgba(0,0,0,.5),0 0 0 1px rgba(44,224,184,.14);
  }
  .related-thumb{
    position:relative;
    aspect-ratio:16/9;
    overflow:hidden;
    background:var(--surface);
  }
  .related-thumb img{
    width:100%;
    height:100%;
    object-fit:cover;
    border-radius:0;
    transition:transform .35s var(--ease);
  }
  .related-card:hover .related-thumb img{transform:scale(1.04)}
  .related-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
  .related-tag{
    align-self:flex-start;
    font-size:12px;
    font-weight:600;
    padding:3px 10px;
    border-radius:var(--radius-btn);
    color:var(--brand);
    background:rgba(44,224,184,.12);
    border:1px solid rgba(44,224,184,.26);
  }
  .related-card h3{
    font-size:16px;
    font-weight:600;
    line-height:1.55;
    color:var(--text);
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }
  .related-card p{
    font-size:13.5px;
    color:var(--text-3);
    line-height:1.7;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
    margin:0;
  }
  .related-more{
    margin-top:auto;
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:13.5px;
    font-weight:600;
    color:var(--brand);
    padding-top:6px;
  }
  .related-more svg{width:14px;height:14px;transition:transform .2s var(--ease)}
  .related-card:hover .related-more svg{transform:translateX(3px)}

  /* ================= CTA 条 ================= */
  .cta-band-wrap{padding:72px 0 0;position:relative;z-index:1}
  .cta-band{
    position:relative;
    overflow:hidden;
    border-radius:var(--radius-c);
    border:1px solid rgba(44,224,184,.24);
    background:linear-gradient(120deg,rgba(44,224,184,.14),rgba(124,107,255,.12) 55%,rgba(255,138,61,.1));
    box-shadow:var(--shadow-card);
    padding:36px 40px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:28px;
    flex-wrap:wrap;
  }
  .cta-band::before{
    content:"";
    position:absolute;
    top:-60%;
    right:-10%;
    width:420px;
    height:420px;
    border-radius:50%;
    background:radial-gradient(closest-side,rgba(44,224,184,.24),transparent 70%);
    pointer-events:none;
  }
  .cta-band-text{position:relative;z-index:1;max-width:640px}
  .cta-band h2{
    font-size:clamp(20px,2.6vw,26px);
    font-weight:800;
    color:var(--text);
    line-height:1.35;
  }
  .cta-band p{
    margin-top:10px;
    font-size:14.5px;
    color:var(--text-2);
    line-height:1.8;
  }
  .cta-band-actions{
    position:relative;
    z-index:1;
    display:flex;
    gap:12px;
    flex-wrap:wrap;
  }

  /* ================= 页脚 ================= */
  .site-footer{
    position:relative;
    margin-top:96px;
    padding:64px 0 28px;
    background:rgba(11,16,32,.72);
    border-top:1px solid var(--line);
    z-index:1;
  }
  .site-footer::before{
    content:"";
    position:absolute;
    top:-1px;
    left:0;
    right:0;
    height:1px;
    background:linear-gradient(90deg,transparent,rgba(44,224,184,.85),transparent);
    opacity:.8;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.6fr 1fr 1fr 1fr;
    gap:40px;
  }
  .footer-brand p{
    margin-top:18px;
    font-size:14px;
    color:var(--text-3);
    line-height:1.85;
    max-width:330px;
  }
  .footer-col h4{
    font-size:14px;
    font-weight:700;
    color:var(--text);
    letter-spacing:.04em;
    margin-bottom:16px;
  }
  .footer-col ul{
    display:grid;
    gap:10px;
    font-size:14px;
    color:var(--text-3);
  }
  .footer-col a{color:var(--text-3)}
  .footer-col a:hover{color:var(--brand)}
  .footer-bottom{
    margin-top:48px;
    padding-top:22px;
    border-top:1px solid var(--line);
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    flex-wrap:wrap;
    font-size:13px;
    color:var(--text-3);
  }

  /* ================= 响应式 ================= */
  @media (max-width:1280px){
    .article-layout{gap:36px;grid-template-columns:minmax(0,1fr) 280px}
    .article-panel{padding:36px 34px 40px}
  }
  @media (max-width:1024px){
    .nav-links{display:none}
    .status-badge{display:none}
    .menu-toggle{display:flex}
    .header-inner{height:68px;gap:16px}
    .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
    .article-aside{position:static;grid-template-columns:repeat(2,minmax(0,1fr));display:grid}
    .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
    .cta-band{padding:32px}
  }
  @media (max-width:768px){
    .container{padding:0 16px}
    .brand-name{font-size:15px}
    .brand-sub{font-size:9px}
    .article-panel{padding:28px 20px 32px;border-radius:16px}
    .article-body{font-size:15.5px;line-height:1.85}
    .article-body h2{font-size:22px;margin:34px 0 14px}
    .article-body h3{font-size:18.5px}
    .article-title{margin:16px 0 18px}
    .article-meta{font-size:12.5px;gap:8px 16px;padding-bottom:22px}
    .article-aside{grid-template-columns:minmax(0,1fr)}
    .related-grid{grid-template-columns:minmax(0,1fr);gap:16px}
    .related-section{padding-top:56px}
    .cta-band-wrap{padding-top:56px}
    .cta-band{padding:26px 22px;border-radius:16px}
    .cta-band-actions{width:100%}
    .cta-band-actions .btn{flex:1}
    .footer-grid{grid-template-columns:1fr;gap:30px}
    .site-footer{margin-top:64px;padding:48px 0 24px}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
    .breadcrumb .current{max-width:100%;white-space:normal}
    .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  }
  @media (max-width:520px){
    .header-actions{gap:10px}
    .btn-sm{padding:8px 14px;font-size:13px}
    .article-eyebrow{font-size:12px;padding:5px 12px}
    .side-card{padding:20px}
    .article-body img{border-radius:12px}
    .article-body pre{font-size:12.5px;padding:14px 16px}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  }

/* roulang page: category1 */
:root{
    --bg:#070A14;
    --bg-2:#0B1020;
    --surface:rgba(255,255,255,.06);
    --surface-solid:#0F1526;
    --brand:#2CE0B8;
    --accent:#7C6BFF;
    --cta:#FF8A3D;
    --text:#EDF2FF;
    --text-2:#A7B3CC;
    --text-3:#6C7896;
    --line:rgba(255,255,255,.10);
    --ring:rgba(44,224,184,.35);
    --ok:#34D399;
    --err:#FF5C7A;
    --radius-card:20px;
    --radius-sub:14px;
    --radius-btn:999px;
    --radius-input:12px;
    --shadow-card:0 12px 32px rgba(0,0,0,.45);
    --ease:cubic-bezier(.2,.8,.2,1);
  }

  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;inset:0;z-index:-2;
    background:
      radial-gradient(680px 420px at 80% -10%, rgba(44,224,184,.16), transparent 62%),
      radial-gradient(560px 420px at 4% 16%, rgba(124,107,255,.13), transparent 60%),
      var(--bg);
  }
  body::after{
    content:"";
    position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.32;
    background-image:
      linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
    background-size:64px 64px;
    -webkit-mask-image:radial-gradient(circle at 50% 0%, #000 0%, transparent 76%);
    mask-image:radial-gradient(circle at 50% 0%, #000 0%, transparent 76%);
  }
  h1,h2,h3,h4,p,figure{margin:0}
  ul,ol{margin:0;padding:0;list-style:none}
  a{color:inherit;text-decoration:none}
  img{display:block;max-width:100%}
  button{font-family:inherit}
  ::selection{background:rgba(44,224,184,.28);color:#fff}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
  .num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(7,10,20,.74);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
  }
  .nav-inner{display:flex;align-items:center;gap:20px;min-height:72px}
  .brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
  .brand-mark{
    width:42px;height:42px;border-radius:12px;display:grid;place-items:center;flex:0 0 auto;
    background:linear-gradient(135deg,#2CE0B8,#17A98C);
    box-shadow:0 8px 20px rgba(44,224,184,.26);
  }
  .brand-mark svg{width:22px;height:22px}
  .brand-text{display:flex;flex-direction:column;line-height:1.2}
  .brand-name{font-size:17px;font-weight:800;letter-spacing:.2px;color:var(--text)}
  .brand-sub{font-size:10px;letter-spacing:.22em;color:var(--text-3);margin-top:4px}
  .nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
  .nav-link{
    position:relative;display:inline-block;padding:8px 14px;border-radius:var(--radius-btn);
    font-size:15px;color:var(--text-2);
    transition:color .2s var(--ease), background .2s var(--ease);
    white-space:nowrap;
  }
  .nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
  .nav-link:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
  .nav-link.is-active{color:var(--brand)}
  .nav-link.is-active::after{
    content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;border-radius:2px;
    background:var(--brand);box-shadow:0 0 10px rgba(44,224,184,.7);
  }
  .nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
  .status-badge{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 12px;border-radius:var(--radius-btn);
    font-size:13px;color:var(--brand);
    background:rgba(44,224,184,.12);
    border:1px solid rgba(44,224,184,.32);
    white-space:nowrap;
  }
  .status-dot{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px var(--brand);animation:pulse 2.4s infinite}
  @keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 22px;border:0;cursor:pointer;font-size:15px;font-weight:600;
    transition:transform .2s var(--ease), filter .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
    text-align:center;
  }
  .btn:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
  .btn-primary{
    border-radius:var(--radius-btn);
    background:linear-gradient(135deg,#FF9A54,#FF6A2B);
    color:#1B0B00;
    box-shadow:0 0 24px rgba(255,138,61,.35);
  }
  .btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
  .btn-primary:active{transform:translateY(0) scale(.99)}
  .btn-glass{
    border-radius:var(--radius-sub);
    background:rgba(255,255,255,.06);
    color:var(--text);
    border:1px solid var(--line);
  }
  .btn-glass:hover{background:rgba(255,255,255,.11);border-color:rgba(44,224,184,.38);transform:translateY(-1px)}
  .btn-sm{padding:9px 16px;font-size:14px}

  .nav-toggle{
    display:none;width:42px;height:42px;border-radius:var(--radius-input);
    border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--text);
    cursor:pointer;place-items:center;
  }
  .nav-toggle:hover{background:rgba(255,255,255,.1)}
  .nav-toggle svg{width:20px;height:20px}

  /* ---------- 抽屉 ---------- */
  .drawer{position:fixed;inset:0;z-index:90;display:none}
  .drawer.is-open{display:block}
  .drawer-backdrop{position:absolute;inset:0;background:rgba(4,7,15,.72);backdrop-filter:blur(4px)}
  .drawer-panel{
    position:absolute;top:0;right:0;bottom:0;width:min(330px,88vw);
    background:#0A0F1E;border-left:1px solid var(--line);
    padding:22px;display:flex;flex-direction:column;gap:6px;
    transform:translateX(100%);transition:transform .24s var(--ease);
    overflow-y:auto;
  }
  .drawer.is-open .drawer-panel{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
  .drawer-head strong{font-size:15px;color:var(--text)}
  .drawer-close{
    width:36px;height:36px;border-radius:var(--radius-input);border:1px solid var(--line);
    background:rgba(255,255,255,.06);color:var(--text);font-size:20px;line-height:1;cursor:pointer;
  }
  .drawer-close:hover{background:rgba(255,255,255,.12)}
  .drawer-link{padding:12px 14px;border-radius:var(--radius-sub);font-size:15px;color:var(--text-2);border:1px solid transparent;transition:all .2s var(--ease)}
  .drawer-link:hover{background:rgba(255,255,255,.06);color:#fff}
  .drawer-link.is-active{color:var(--brand);background:rgba(44,224,184,.12);border-color:rgba(44,224,184,.3)}
  .drawer-cta{margin-top:16px}
  .drawer-note{margin-top:14px;font-size:13px;color:var(--text-3);line-height:1.7}

  /* ---------- 首屏 ---------- */
  .page-hero{position:relative;overflow:hidden;padding:56px 0 64px;border-bottom:1px solid var(--line)}
  .page-hero::before{
    content:"";position:absolute;inset:0;
    background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    opacity:.42;filter:saturate(.92);
  }
  .page-hero::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg, rgba(7,10,20,.88) 0%, rgba(7,10,20,.93) 58%, var(--bg) 100%);
  }
  .hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:40px;align-items:center}
  .crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap}
  .crumb a{color:var(--text-3);transition:color .2s var(--ease)}
  .crumb a:hover{color:var(--brand)}
  .crumb .sep{color:rgba(255,255,255,.22)}
  .crumb .now{color:var(--text-2)}

  .hero-title{font-size:clamp(30px,4.4vw,50px);font-weight:800;line-height:1.18;letter-spacing:-.5px}
  .hero-brand{
    display:block;font-size:14px;font-weight:700;letter-spacing:.14em;
    color:var(--brand);margin-bottom:14px;
  }
  .hero-cat{display:block}
  .hero-sub{margin-top:18px;font-size:17px;color:var(--text-2);max-width:620px}
  .hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
  .hero-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;font-size:14px;color:var(--text-2)}
  .hero-meta span{display:inline-flex;align-items:center;gap:8px}
  .hero-meta span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 8px rgba(44,224,184,.8);flex:0 0 auto}

  .glass-card{
    background:rgba(255,255,255,.06);
    border:1px solid rgba(255,255,255,.10);
    border-radius:var(--radius-card);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    box-shadow:var(--shadow-card);
  }
  .hero-card{padding:18px;transform:translateY(-6px)}
  .hero-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-sub);margin-bottom:16px}
  .hero-card h2{font-size:15px;font-weight:700;letter-spacing:.04em;color:var(--text);margin-bottom:6px;display:flex;align-items:center;gap:8px}
  .hero-card h2::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--brand)}
  .spec-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.09);font-size:14px;color:var(--text-2)}
  .spec-row:last-of-type{border-bottom:0}
  .spec-row b{color:#fff;font-weight:700;font-variant-numeric:tabular-nums}
  .hero-card .card-cta{margin-top:8px;width:100%}

  /* ---------- 数据条 ---------- */
  .stat-wrap{padding:0 0 8px}
  .stat-grid{
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
    gap:0;padding:6px 0;
    background:rgba(255,255,255,.04);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    overflow:hidden;
  }
  .stat{padding:22px 24px;border-right:1px solid var(--line)}
  .stat:last-child{border-right:0}
  .stat .v{font-size:26px;font-weight:800;color:var(--brand);letter-spacing:-.5px;font-variant-numeric:tabular-nums;line-height:1.2}
  .stat .v small{font-size:14px;font-weight:600;color:var(--text-2);margin-left:4px}
  .stat .k{margin-top:6px;font-size:13px;color:var(--text-3);letter-spacing:.04em}

  /* ---------- 板块通用 ---------- */
  .section{padding:96px 0}
  .section-tight{padding:64px 0}
  .section-head{max-width:760px;margin-bottom:32px}
  .eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;letter-spacing:.18em;color:var(--brand)}
  .eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--brand),transparent)}
  .section-title{margin-top:14px;font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.3px}
  .section-desc{margin-top:12px;color:var(--text-2);font-size:15.5px}

  /* ---------- 下载区 ---------- */
  .download-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:32px;align-items:start}
  .rail{position:sticky;top:96px;padding:22px}
  .rail-title{font-size:12.5px;letter-spacing:.16em;color:var(--text-3);margin-bottom:12px}
  .rail-tabs{display:flex;flex-direction:column;gap:6px}
  .rail-tab{
    display:flex;align-items:center;justify-content:space-between;gap:8px;
    padding:10px 14px;border-radius:var(--radius-sub);
    font-size:14px;color:var(--text-2);background:transparent;
    border:1px solid transparent;cursor:pointer;text-align:left;width:100%;
    transition:all .2s var(--ease);
  }
  .rail-tab:hover{background:rgba(255,255,255,.06);color:#fff}
  .rail-tab:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
  .rail-tab.is-active{background:rgba(44,224,184,.12);border-color:rgba(44,224,184,.32);color:var(--brand);font-weight:600}
  .rail-tab .cnt{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums}
  .rail-tab.is-active .cnt{color:rgba(44,224,184,.8)}
  .rail-note{margin-top:20px;padding-top:18px;border-top:1px solid var(--line);font-size:13.5px;color:var(--text-2);line-height:1.75}
  .rail-note strong{display:block;color:var(--text);font-size:14px;margin-bottom:6px}
  .rail-note .btn{margin-top:14px;width:100%}

  .device-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .device-card{
    padding:14px;border-radius:var(--radius-card);
    background:rgba(255,255,255,.06);
    border:1px solid rgba(255,255,255,.10);
    box-shadow:var(--shadow-card);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    transition:transform .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
    display:flex;flex-direction:column;
  }
  .device-card:hover{transform:translateY(-4px);border-color:rgba(44,224,184,.42);box-shadow:0 18px 40px rgba(0,0,0,.5)}
  .device-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-sub)}
  .device-body{padding:16px 8px 8px;display:flex;flex-direction:column;flex:1}
  .tag{
    display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--radius-btn);
    font-size:12px;color:var(--brand);background:rgba(44,224,184,.12);
    border:1px solid rgba(44,224,184,.28);line-height:1.6;white-space:nowrap;
  }
  .tag-neutral{color:var(--text-2);background:rgba(255,255,255,.05);border-color:var(--line)}
  .tag-accent{color:#CFC7FF;background:rgba(124,107,255,.14);border-color:rgba(124,107,255,.3)}
  .tag-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
  .device-body h3{font-size:19px;font-weight:600;margin:12px 0 8px;line-height:1.45}
  .device-body p{font-size:14.5px;color:var(--text-2);line-height:1.75}
  .card-link{
    display:inline-flex;align-items:center;gap:6px;margin-top:auto;padding-top:16px;
    font-size:14px;font-weight:600;color:var(--brand);transition:gap .2s var(--ease), color .2s var(--ease);
  }
  .card-link:hover{gap:11px;color:#7CF3DC}
  .card-link:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}

  /* ---------- 流程 ---------- */
  .steps-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .step-card{
    position:relative;padding:24px;border-radius:var(--radius-card);
    background:rgba(255,255,255,.05);border:1px solid var(--line);
    transition:transform .2s var(--ease), border-color .2s var(--ease);
  }
  .step-card:hover{transform:translateY(-4px);border-color:rgba(44,224,184,.36)}
  .step-num{
    display:inline-block;font-size:26px;font-weight:800;line-height:1;
    color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:-.5px;
    text-shadow:0 0 18px rgba(44,224,184,.45);
  }
  .step-card h3{font-size:18px;font-weight:600;margin:12px 0 8px}
  .step-card p{font-size:14.5px;color:var(--text-2);line-height:1.78}

  /* ---------- 版本记录 ---------- */
  .log-list{border-top:1px solid var(--line)}
  .log-item{display:grid;grid-template-columns:150px minmax(0,1fr);gap:24px;padding:22px 0;border-bottom:1px solid var(--line)}
  .log-item time{font-size:14px;color:var(--text-3);font-variant-numeric:tabular-nums;letter-spacing:.02em}
  .log-item h3{font-size:17px;font-weight:600;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
  .log-item p{font-size:14.5px;color:var(--text-2);margin-top:6px;line-height:1.78}

  /* ---------- 要点 ---------- */
  .notes-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 32px}
  .note-item{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--text-2);line-height:1.78}
  .note-item .tick{
    flex:0 0 auto;width:22px;height:22px;margin-top:3px;border-radius:50%;
    display:grid;place-items:center;font-size:12px;color:var(--brand);
    background:rgba(44,224,184,.14);border:1px solid rgba(44,224,184,.34);
  }

  /* ---------- FAQ ---------- */
  .faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
  .faq-item{
    border-radius:var(--radius-card);overflow:hidden;
    background:rgba(255,255,255,.05);border:1px solid var(--line);
    transition:border-color .2s var(--ease), background .2s var(--ease);
  }
  .faq-item:hover{background:rgba(255,255,255,.07)}
  .faq-item.is-open{border-color:rgba(44,224,184,.36);background:rgba(44,224,184,.05)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 24px;background:transparent;border:0;cursor:pointer;
    font-size:16px;font-weight:600;color:var(--text);text-align:left;line-height:1.6;
  }
  .faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:-3px}
  .faq-icon{
    flex:0 0 auto;width:26px;height:26px;border-radius:50%;
    display:grid;place-items:center;font-size:16px;color:var(--brand);
    background:rgba(44,224,184,.14);border:1px solid rgba(44,224,184,.3);
    transition:transform .2s var(--ease);
  }
  .faq-item.is-open .faq-icon{transform:rotate(45deg)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease)}
  .faq-a p{padding:0 24px 20px;font-size:15px;line-height:1.8;color:var(--text-2)}

  /* ---------- CTA / 表单 ---------- */
  .cta-card{
    display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;
    padding:40px;border-radius:var(--radius-card);
    background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.10);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    box-shadow:var(--shadow-card);
  }
  .cta-left h2{font-size:clamp(24px,2.6vw,30px);font-weight:700;line-height:1.3}
  .cta-left p{margin-top:14px;color:var(--text-2);font-size:15.5px}
  .cta-points{margin-top:22px;display:flex;flex-direction:column;gap:12px}
  .cta-points li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--text-2);line-height:1.75}
  .cta-points .dot{
    flex:0 0 auto;width:8px;height:8px;margin-top:10px;border-radius:50%;
    background:var(--brand);box-shadow:0 0 10px rgba(44,224,184,.7);
  }
  .field{margin-bottom:16px}
  .field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px;letter-spacing:.02em}
  .field input,.field select,.field textarea{
    width:100%;padding:12px 14px;border-radius:var(--radius-input);
    background:rgba(255,255,255,.05);border:1px solid var(--line);
    color:var(--text);font-size:15px;font-family:inherit;line-height:1.6;
    transition:border-color .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
    appearance:none;
  }
  .field textarea{min-height:104px;resize:vertical}
  .field select{background-image:linear-gradient(45deg,transparent 50%,#A7B3CC 50%),linear-gradient(135deg,#A7B3CC 50%,transparent 50%);background-position:calc(100% - 20px) 20px, calc(100% - 14px) 20px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
  .field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
  .field input:hover,.field select:hover,.field textarea:hover{border-color:rgba(255,255,255,.2)}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--brand);
    box-shadow:0 0 0 3px rgba(44,224,184,.15);
    background:rgba(255,255,255,.07);
  }
  .field-check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--text-2);line-height:1.7;margin-bottom:18px}
  .field-check input{width:16px;height:16px;margin-top:4px;accent-color:#2CE0B8;flex:0 0 auto}
  .field-check a{color:var(--brand)}
  .btn-block{width:100%}
  .form-note{margin-top:12px;font-size:12.5px;color:var(--text-3);text-align:center}
  .form-status{
    margin-bottom:16px;padding:12px 14px;border-radius:var(--radius-input);
    font-size:14px;line-height:1.7;display:none;
  }
  .form-status.is-ok{display:block;color:#8FF0C6;background:rgba(52,211,153,.12);border:1px solid rgba(52,211,153,.35)}
  .form-status.is-err{display:block;color:#FFB3C1;background:rgba(255,92,122,.12);border:1px solid rgba(255,92,122,.35)}

  /* ---------- 页脚 ---------- */
  .site-footer{
    position:relative;margin-top:24px;padding:64px 0 28px;
    background:rgba(255,255,255,.02);border-top:1px solid var(--line);
  }
  .site-footer::before{
    content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
    background:linear-gradient(90deg,transparent,rgba(44,224,184,.7),transparent);
  }
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
  .footer-brand p{margin-top:16px;font-size:14px;color:var(--text-2);max-width:330px;line-height:1.8}
  .footer-col h4{font-size:14px;font-weight:700;letter-spacing:.1em;color:var(--text);margin-bottom:14px}
  .footer-col li{font-size:14px;color:var(--text-2);margin-bottom:10px;line-height:1.7}
  .footer-col a{transition:color .2s var(--ease)}
  .footer-col a:hover{color:var(--brand)}
  .footer-col a:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px}
  .footer-bottom{
    display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
    margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
    font-size:13px;color:var(--text-3);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1280px){
    .hero-inner{grid-template-columns:minmax(0,1fr) 330px;gap:32px}
  }
  @media (max-width:1024px){
    .nav-links,.status-badge{display:none}
    .nav-toggle{display:grid}
    .hero-inner{grid-template-columns:minmax(0,1fr)}
    .hero-card{transform:none;max-width:520px}
    .download-layout{grid-template-columns:minmax(0,1fr)}
    .rail{position:static}
    .rail-tabs{flex-direction:row;flex-wrap:wrap}
    .rail-tab{width:auto}
    .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .stat:nth-child(2){border-right:0}
    .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
    .cta-card{grid-template-columns:minmax(0,1fr);gap:28px;padding:28px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
    .section{padding:72px 0}
  }
  @media (max-width:768px){
    .container{padding:0 16px}
    .section{padding:56px 0}
    .page-hero{padding:40px 0 48px}
    .device-grid{grid-template-columns:minmax(0,1fr)}
    .steps-grid{grid-template-columns:minmax(0,1fr)}
    .notes-grid{grid-template-columns:minmax(0,1fr)}
    .log-item{grid-template-columns:minmax(0,1fr);gap:6px}
    .faq-q{padding:16px 18px;font-size:15px}
    .faq-a p{padding:0 18px 16px}
    .hero-sub{font-size:15.5px}
    .brand-sub{display:none}
    .bn-tail{display:none}
    .stat{padding:18px}
    .stat .v{font-size:22px}
    .nav-inner{min-height:64px;gap:12px}
    .hero-cta .btn{flex:1 1 100%}
  }
  @media (max-width:480px){
    .stat-grid{grid-template-columns:minmax(0,1fr)}
    .stat{border-right:0;border-bottom:1px solid var(--line)}
    .stat:last-child{border-bottom:0}
    .footer-grid{grid-template-columns:minmax(0,1fr)}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
    .hero-meta{font-size:13px}
    .cta-card{padding:20px}
    .rail{padding:18px}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation-duration:.001ms !important;transition-duration:.001ms !important}
    html{scroll-behavior:auto}
  }

/* roulang page: category2 */
:root{
  --bg:#070A14;
  --bg-2:#0B1020;
  --surface:rgba(255,255,255,.06);
  --surface-strong:rgba(255,255,255,.09);
  --brand:#2CE0B8;
  --brand-ink:#04241D;
  --accent:#7C6BFF;
  --cta:#FF8A3D;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --text:#EDF2FF;
  --muted:#A7B3CC;
  --faint:#6C7896;
  --ok:#34D399;
  --warn:#FFB020;
  --err:#FF5C7A;
  --radius-c:20px;
  --radius-s:14px;
  --radius-in:12px;
  --radius-pill:999px;
  --shadow-card:0 12px 32px rgba(0,0,0,.45);
  --ring:0 0 0 3px rgba(44,224,184,.15);
  --space-block:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(900px 520px at 80% -10%, rgba(44,224,184,.14), transparent 62%),
    radial-gradient(760px 460px at 6% 2%, rgba(124,107,255,.13), transparent 60%),
    linear-gradient(rgba(255,255,255,.032) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.032) 1px, transparent 1px);
  background-size:auto,auto,64px 64px,64px 64px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,figure,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s cubic-bezier(.2,.8,.2,1),background .2s,border-color .2s,opacity .2s}
img{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;letter-spacing:.01em}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(7,10,20,.72);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(6,9,18,.92);
  border-bottom-color:rgba(44,224,184,.22);
  box-shadow:0 10px 30px rgba(0,0,0,.42);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:74px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:var(--radius-in);
  background:linear-gradient(140deg,var(--brand),#12B79A 55%,var(--accent));
  box-shadow:0 6px 18px rgba(44,224,184,.28);
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:15.5px;font-weight:800;letter-spacing:.02em;color:var(--text)}
.brand-sub{font-size:10.5px;font-weight:600;letter-spacing:.2em;color:var(--faint)}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:8px;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  padding:9px 15px;
  border-radius:var(--radius-pill);
  font-size:14.5px;
  font-weight:600;
  color:var(--muted);
  border:1px solid transparent;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-link.is-active{
  color:var(--text);
  background:rgba(44,224,184,.10);
  border-color:rgba(44,224,184,.22);
  box-shadow:inset 0 -2px 0 var(--brand);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
}
.status-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 14px;
  font-size:12.5px;
  font-weight:600;
  color:#BFF7EA;
  background:rgba(44,224,184,.12);
  border:1px solid rgba(44,224,184,.42);
  border-radius:var(--radius-pill);
  white-space:nowrap;
}
.status-badge .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 12px rgba(44,224,184,.85);
}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:var(--radius-in);
  border:1px solid var(--line);
  background:rgba(255,255,255,.06);
  color:var(--text);
  place-items:center;
}
.nav-toggle span{
  display:block;width:18px;height:2px;border-radius:2px;
  background:currentColor;position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:currentColor;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.drawer{
  position:fixed;
  inset:0 0 0 auto;
  width:min(320px,86vw);
  background:rgba(9,13,25,.98);
  border-left:1px solid var(--line);
  backdrop-filter:blur(16px);
  transform:translateX(102%);
  transition:transform .26s cubic-bezier(.2,.8,.2,1);
  z-index:120;
  padding:22px;
  display:flex;
  flex-direction:column;
  gap:10px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:12px;border-bottom:1px solid var(--line)}
.drawer-title{font-size:14px;font-weight:700;color:var(--muted);letter-spacing:.08em}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  background:rgba(255,255,255,.06);display:grid;place-items:center;font-size:18px;line-height:1;
}
.drawer a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 14px;border-radius:var(--radius-s);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  font-size:15px;font-weight:600;color:var(--text);
}
.drawer a.drawer-link.is-active{
  border-color:rgba(44,224,184,.45);
  background:rgba(44,224,184,.13);
  color:#BFF7EA;
}
.drawer-note{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--faint);line-height:1.7;
}
.drawer .btn{margin-top:4px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .2s cubic-bezier(.2,.8,.2,1),box-shadow .2s,background .2s,filter .2s,border-color .2s;
}
.btn-primary{
  background:linear-gradient(135deg,#FFA362,#FF8A3D);
  color:#2A1204;
  box-shadow:0 0 24px rgba(255,138,61,.35);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 30px rgba(255,138,61,.5)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{
  background:rgba(255,255,255,.06);
  border-color:var(--line-strong);
  color:var(--text);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.btn-ghost:hover{background:rgba(255,255,255,.11);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:9px 18px;font-size:13.5px}
.btn-block{width:100%}

/* ============ 通用板块 ============ */
.section{padding:var(--space-block) 0}
.section-tight{padding-top:0}
.section-head{max-width:720px;margin-bottom:36px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.16em;
  color:var(--brand);
  text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--brand),transparent);
}
.section-head h2{
  font-size:clamp(24px,3vw,34px);
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.01em;
}
.section-head p{
  margin-top:14px;
  font-size:15.5px;
  color:var(--muted);
}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center 30%;
  opacity:.4;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:
    radial-gradient(600px 320px at 82% 18%, rgba(44,224,184,.20), transparent 62%),
    linear-gradient(118deg, rgba(7,10,20,.96) 6%, rgba(7,10,20,.82) 46%, rgba(7,10,20,.58) 100%);
}
.hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.35fr .65fr;
  gap:44px;
  align-items:end;
  padding:86px 0 76px;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;
  border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:600;
  color:#BFF7EA;
  background:rgba(44,224,184,.12);
  border:1px solid rgba(44,224,184,.42);
  margin-bottom:20px;
}
.hero-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 12px rgba(44,224,184,.85)}
.hero-inner h1{
  font-size:clamp(30px,4.4vw,50px);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.02em;
}
.hero-inner h1 em{
  font-style:normal;
  color:var(--brand);
}
.hero-sub{
  margin-top:18px;
  font-size:16.5px;
  color:#CBD5EA;
  max-width:560px;
}
.hero-desc{
  margin-top:14px;
  font-size:15px;
  color:var(--muted);
  max-width:600px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:30px;
}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  margin-top:28px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13.5px;
  color:var(--faint);
}
.hero-facts span{display:inline-flex;align-items:center;gap:8px}
.hero-facts span::before{
  content:"";width:5px;height:5px;border-radius:50%;
  background:var(--brand);opacity:.9;
}
.glass-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-c);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.status-card{padding:24px;transform:translateY(-6px)}
.status-card h3{font-size:15px;font-weight:700;color:var(--muted);letter-spacing:.06em;margin-bottom:16px}
.status-list{display:flex;flex-direction:column;gap:12px}
.status-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 14px;
  border-radius:var(--radius-s);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  font-size:13.5px;
}
.status-row b{font-weight:600;color:var(--text)}
.status-row .pill{
  font-size:12px;font-weight:600;padding:3px 10px;border-radius:var(--radius-pill);
  color:#BFF7EA;background:rgba(44,224,184,.14);border:1px solid rgba(44,224,184,.4);
}
.status-row .pill.warn{
  color:#FFE0B8;background:rgba(255,176,32,.14);border-color:rgba(255,176,32,.42);
}
.status-foot{
  margin-top:16px;padding-top:14px;border-top:1px dashed rgba(255,255,255,.14);
  font-size:12.5px;color:var(--faint);
}

/* ============ 标签条 + 能力卡 ============ */
.tag-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:34px;
  padding-bottom:2px;
}
.chip{
  padding:9px 18px;
  border-radius:var(--radius-pill);
  font-size:13.5px;
  font-weight:600;
  color:var(--muted);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  transition:all .2s cubic-bezier(.2,.8,.2,1);
}
.chip:hover{color:var(--text);border-color:var(--line-strong);background:rgba(255,255,255,.09)}
.chip.is-on{
  color:#BFF7EA;
  background:rgba(44,224,184,.14);
  border-color:rgba(44,224,184,.55);
  box-shadow:0 0 18px rgba(44,224,184,.16);
}
.cap-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.cap-slot{will-change:transform}
.cap-slot:nth-child(3n+2){transform:translateY(34px)}
.cap-slot:nth-child(3n+3){transform:translateY(16px)}
.cap-card{
  height:100%;
  display:flex;
  flex-direction:column;
  overflow:hidden;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-c);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  transition:transform .2s cubic-bezier(.2,.8,.2,1),border-color .2s,box-shadow .2s;
}
.cap-card:hover{
  transform:translateY(-4px);
  border-color:rgba(44,224,184,.45);
  box-shadow:0 18px 42px rgba(0,0,0,.52);
}
.cap-media{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
}
.cap-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .22s cubic-bezier(.2,.8,.2,1);
}
.cap-card:hover .cap-media img{transform:scale(1.03)}
.cap-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,20,0) 40%,rgba(7,10,20,.75) 100%);
}
.cap-body{
  padding:22px;
  display:flex;
  flex-direction:column;
  gap:12px;
  flex:1;
}
.tag{
  align-self:flex-start;
  padding:4px 11px;
  border-radius:var(--radius-pill);
  font-size:12px;
  font-weight:600;
  color:var(--brand);
  background:rgba(44,224,184,.12);
  border:1px solid rgba(44,224,184,.34);
}
.cap-body h3{
  font-size:19px;
  font-weight:600;
  line-height:1.4;
}
.cap-body p{
  font-size:14.5px;
  color:var(--muted);
  line-height:1.8;
}
.cap-link{
  margin-top:auto;
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:13.5px;
  font-weight:700;
  color:var(--brand);
}
.cap-link::after{content:"→";transition:transform .2s cubic-bezier(.2,.8,.2,1)}
.cap-card:hover .cap-link::after{transform:translateX(4px)}
.cap-link:hover{color:#8CF2DA}

/* ============ 自检步骤 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  margin-top:8px;
}
.step{
  position:relative;
  padding:26px 22px;
  border-radius:var(--radius-c);
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  transition:transform .2s cubic-bezier(.2,.8,.2,1),border-color .2s,background .2s;
}
.step:hover{
  transform:translateY(-4px);
  border-color:rgba(44,224,184,.4);
  background:rgba(44,224,184,.07);
}
.step-num{
  font-size:13px;
  font-weight:700;
  letter-spacing:.16em;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.step h3{
  margin-top:12px;
  font-size:17.5px;
  font-weight:600;
  line-height:1.45;
}
.step p{
  margin-top:10px;
  font-size:14px;
  color:var(--muted);
  line-height:1.8;
}
.step::after{
  content:"";
  position:absolute;
  right:-14px;
  top:50%;
  width:8px;height:8px;
  border-top:1.5px solid rgba(44,224,184,.5);
  border-right:1.5px solid rgba(44,224,184,.5);
  transform:translateY(-50%) rotate(45deg);
}
.step:last-child::after{display:none}

/* ============ 数据条 ============ */
.metrics-band{
  margin-top:var(--space-block);
  padding:36px 32px;
  border-radius:var(--radius-c);
  background:linear-gradient(140deg,rgba(44,224,184,.10),rgba(124,107,255,.08));
  border:1px solid rgba(255,255,255,.12);
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.metric{position:relative;padding-left:20px}
.metric::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--brand),rgba(44,224,184,0));
  border-radius:2px;
}
.metric-value{
  font-size:clamp(24px,3vw,34px);
  font-weight:800;
  line-height:1.2;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.metric-label{
  margin-top:6px;
  font-size:13.5px;
  color:var(--muted);
}

/* ============ FAQ ============ */
.faq-list{max-width:880px}
.faq-item{
  margin-bottom:12px;
  border-radius:var(--radius-s);
  background:var(--surface);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  overflow:hidden;
  transition:border-color .2s,background .2s;
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.is-open{border-color:rgba(44,224,184,.45);background:rgba(44,224,184,.07)}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  width:100%;
  padding:18px 20px;
  text-align:left;
  font-size:15.5px;
  font-weight:600;
  color:var(--text);
}
.faq-icon{
  flex-shrink:0;
  width:26px;height:26px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid rgba(44,224,184,.45);
  color:var(--brand);
  font-size:15px;
  line-height:1;
  transition:transform .2s cubic-bezier(.2,.8,.2,1),background .2s;
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:rgba(44,224,184,.16)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .2s ease;
}
.faq-item.is-open .faq-a{max-height:380px}
.faq-a-inner{
  padding:0 20px 20px;
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
}

/* ============ 协助申请 ============ */
.assist-wrap{
  display:grid;
  grid-template-columns:.92fr 1.08fr;
  gap:44px;
  align-items:start;
}
.assist-text h2{
  font-size:clamp(24px,3vw,32px);
  font-weight:700;
  line-height:1.32;
}
.assist-text p{
  margin-top:16px;
  font-size:15.5px;
  color:var(--muted);
}
.assist-list{
  margin-top:26px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.assist-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:14.5px;
  color:#CBD5EA;
  line-height:1.7;
}
.assist-list li::before{
  content:"";
  flex-shrink:0;
  width:18px;height:18px;
  margin-top:4px;
  border-radius:50%;
  background:rgba(44,224,184,.16);
  border:1px solid rgba(44,224,184,.5);
  background-image:linear-gradient(45deg,transparent 44%,var(--brand) 45%,var(--brand) 55%,transparent 56%);
}
.form-card{
  padding:28px;
  border-radius:var(--radius-c);
  background:var(--surface);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.form-card h3{font-size:19px;font-weight:700}
.form-card .form-hint{margin-top:8px;font-size:13.5px;color:var(--faint)}
.field{margin-top:18px}
.field label{
  display:block;
  margin-bottom:8px;
  font-size:13.5px;
  font-weight:600;
  color:var(--muted);
}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;
  padding:13px 15px;
  border-radius:var(--radius-in);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-strong);
  color:var(--text);
  font-size:15px;
  line-height:1.6;
  transition:border-color .2s,box-shadow .2s,background .2s;
}
.field textarea{resize:vertical;min-height:104px}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 49%,var(--muted) 50%,var(--muted) 55%,transparent 56%);background-repeat:no-repeat;background-position:calc(100% - 20px) center;background-size:10px 10px;padding-right:42px}
.field input::placeholder,.field textarea::placeholder{color:#5C6884}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  background:rgba(44,224,184,.06);
  box-shadow:var(--ring);
}
.check-row{
  display:flex;
  gap:10px;
  align-items:flex-start;
  margin-top:20px;
  font-size:13.5px;
  color:var(--muted);
  line-height:1.7;
}
.check-row input[type="checkbox"]{
  width:17px;height:17px;
  margin-top:4px;
  flex-shrink:0;
  accent-color:var(--brand);
}
.form-card .btn{margin-top:22px}
.form-note{
  margin-top:16px;
  padding:12px 16px;
  border-radius:var(--radius-in);
  font-size:13.5px;
  color:#BFF7EA;
  background:rgba(44,224,184,.12);
  border:1px solid rgba(44,224,184,.45);
}
.form-note[hidden]{display:none}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  padding:72px 0 34px;
  background:rgba(5,8,16,.72);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--brand),transparent);
  opacity:.65;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand p{
  margin-top:18px;
  font-size:14px;
  color:var(--muted);
  max-width:320px;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--text);
  letter-spacing:.04em;
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col li,.footer-col a{
  font-size:13.5px;
  color:var(--muted);
}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:52px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  justify-content:space-between;
  font-size:12.5px;
  color:var(--faint);
}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .hero-inner{gap:32px}
}
@media (max-width:1024px){
  :root{--space-block:72px}
  .nav-links,.header-actions .status-badge{display:none}
  .nav-toggle{display:grid}
  .header-actions{gap:8px}
  .hero-inner{grid-template-columns:1fr;gap:32px;padding:64px 0 56px;align-items:start}
  .status-card{transform:none;max-width:480px}
  .cap-grid{grid-template-columns:repeat(2,1fr)}
  .cap-slot:nth-child(3n+2),.cap-slot:nth-child(3n+3){transform:none}
  .cap-slot:nth-child(2n){transform:translateY(0)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step::after{display:none}
  .metrics-band{grid-template-columns:repeat(2,1fr);padding:30px 24px}
  .assist-wrap{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  :root{--space-block:56px}
  .container{padding-left:16px;padding-right:16px}
  .header-inner{min-height:66px;gap:12px}
  .brand-sub{display:none}
  .brand-name{font-size:14.5px;max-width:150px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .header-actions .btn{display:none}
  .hero-inner{padding:52px 0 46px}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{flex:1 1 100%}
  .cap-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .metrics-band{grid-template-columns:1fr;gap:20px}
  .metric{padding-left:16px}
  .faq-q{font-size:14.5px;padding:16px 16px}
  .faq-a-inner{padding:0 16px 18px;font-size:14.5px}
  .form-card{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .section-head h2{font-size:23px}
  .hero-inner h1{font-size:29px}
  .cap-body{padding:18px}
  .assist-text h2{font-size:23px}
  .tag-bar{gap:8px}
  .chip{padding:8px 15px;font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}