/* roulang page: index */
:root{
  --bg-0:#0A0918;
  --bg-1:#12102A;
  --surface:#1A1636;
  --surface-2:#241E4A;
  --neon:#3DE8C8;
  --gold:#FFC24B;
  --pink:#FF5FA2;
  --text-hi:#F2F0FF;
  --text-mid:#B6B0D6;
  --text-low:#7A739E;
  --line:rgba(255,255,255,.08);
  --line-neon:rgba(61,232,200,.16);
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:12px;
  --shadow-card:0 10px 30px rgba(6,4,20,.55);
  --shadow-card-hover:0 0 0 1px rgba(61,232,200,.35), 0 18px 44px rgba(61,232,200,.14);
  --num-font:'PingFang SC','HarmonyOS Sans','Microsoft YaHei',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-mid);
  font-family:'PingFang SC','HarmonyOS Sans','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--text-hi);font-weight:800;letter-spacing:0;line-height:1.25;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--neon);outline-offset:3px;border-radius:6px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:92px 0;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:44px;}
.section-head h2{font-size:32px;line-height:1.25;margin-bottom:12px;}
.section-head p{color:var(--text-mid);max-width:720px;font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.06em;color:var(--neon);
  border:1px solid var(--line-neon);border-radius:999px;
  padding:5px 14px;margin-bottom:16px;background:rgba(61,232,200,.06);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--neon);box-shadow:0 0 10px var(--neon);}
.num{font-variant-numeric:tabular-nums;font-family:var(--num-font);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:rgba(10,9,24,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,var(--neon),var(--pink) 45%,transparent);
  opacity:.75;
}
.nav-inner{
  height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.logo{display:flex;align-items:center;gap:11px;min-height:44px;}
.logo-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:11px;
  background:radial-gradient(circle at 30% 25%,#3DE8C8 0%,#1F7F8C 42%,#12102A 100%);
  box-shadow:0 0 0 1px rgba(61,232,200,.35),0 0 18px rgba(61,232,200,.25);
  position:relative;
}
.logo-mark::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 68% 32%,#FFC24B 0 1.6px,transparent 2px),
    radial-gradient(circle at 36% 66%,#F2F0FF 0 1.2px,transparent 1.8px),
    radial-gradient(circle at 74% 72%,#F2F0FF 0 1px,transparent 1.6px);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text b{color:var(--text-hi);font-size:16px;font-weight:800;letter-spacing:0;}
.logo-text span{color:var(--text-low);font-size:11px;letter-spacing:.14em;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:44px;padding:0 14px;border-radius:10px;
  color:var(--text-mid);font-size:15px;font-weight:500;
  transition:color .18s ease,background .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  border-radius:2px;background:var(--neon);opacity:0;transform:scaleX(.4);
  transition:opacity .18s ease,transform .18s ease;
}
.nav-link:hover{color:var(--text-hi);background:rgba(255,255,255,.04);}
.nav-link:hover::after{opacity:.45;transform:scaleX(1);}
.nav-link.active{color:var(--neon);text-shadow:0 0 12px rgba(61,232,200,.45);}
.nav-link.active::after{opacity:1;transform:scaleX(1);box-shadow:0 0 12px rgba(61,232,200,.6);}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;
  background:var(--neon);color:#06221D;font-weight:800;font-size:15px;
  box-shadow:0 0 0 1px rgba(61,232,200,.5),0 8px 24px rgba(61,232,200,.28);
  transition:transform .2s ease,filter .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.nav-cta:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(61,232,200,.65),0 14px 34px rgba(61,232,200,.34);}
.nav-cta:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(61,232,200,.5),0 4px 14px rgba(61,232,200,.22);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:transparent;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-hi);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-hi);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.drawer{
  position:fixed;inset:56px 0 0 0;z-index:89;
  background:rgba(10,9,24,.98);
  padding:22px 24px 30px;
  display:none;flex-direction:column;gap:4px;
  overflow-y:auto;
}
.drawer.open{display:flex;}
.drawer a{
  display:flex;align-items:center;height:52px;padding-left:14px;border-radius:12px;
  color:var(--text-mid);font-size:16px;border-left:3px solid transparent;
}
.drawer a.active{color:var(--neon);border-left-color:var(--neon);background:rgba(61,232,200,.07);}
.drawer .nav-cta{margin-top:18px;width:100%;}

/* ---------- Hero ---------- */
.hero{
  position:relative;margin-top:68px;min-height:600px;
  display:flex;align-items:center;overflow:hidden;
  background-image:
    radial-gradient(900px 420px at 12% 8%,rgba(61,232,200,.16),transparent 62%),
    radial-gradient(760px 420px at 92% 92%,rgba(255,95,162,.14),transparent 60%),
    linear-gradient(180deg,rgba(10,9,24,.72),rgba(10,9,24,.94)),
    url('/assets/images/backpic/back-1.png');
  background-size:cover,cover,cover,cover;
  background-position:center,center,center,center;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:
    radial-gradient(circle at 18% 24%,rgba(255,255,255,.85) 0 1px,transparent 1.6px),
    radial-gradient(circle at 62% 14%,rgba(255,255,255,.6) 0 1px,transparent 1.6px),
    radial-gradient(circle at 82% 46%,rgba(255,255,255,.7) 0 1px,transparent 1.6px),
    radial-gradient(circle at 34% 74%,rgba(255,255,255,.5) 0 1px,transparent 1.6px),
    radial-gradient(circle at 72% 82%,rgba(255,255,255,.6) 0 1px,transparent 1.6px);
}
.hero-inner{
  position:relative;z-index:2;width:100%;
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:52px;align-items:center;padding:80px 0;
}
.hero h1{font-size:48px;line-height:1.15;margin-bottom:20px;}
.hero h1 .hl{
  background:linear-gradient(96deg,var(--neon) 0%,var(--gold) 96%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:18px;color:var(--text-mid);max-width:520px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:999px;font-weight:700;font-size:16px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,filter .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease;
}
.btn-primary{
  background:var(--neon);color:#06221D;
  box-shadow:0 0 0 1px rgba(61,232,200,.5),0 10px 28px rgba(61,232,200,.28);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(61,232,200,.7),0 16px 38px rgba(61,232,200,.34);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(61,232,200,.5),0 5px 16px rgba(61,232,200,.2);}
.btn-ghost{
  background:transparent;border-color:rgba(61,232,200,.6);color:var(--neon);
}
.btn-ghost:hover{background:rgba(61,232,200,.12);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.hero-note{font-size:13px;color:var(--text-low);}
.hero-side{display:flex;flex-direction:column;gap:16px;}
.stat-pill{
  display:flex;align-items:center;gap:16px;
  padding:18px 22px;border-radius:999px;
  background:linear-gradient(160deg,rgba(26,22,54,.94),rgba(36,30,74,.86));
  border:1px solid rgba(255,194,75,.3);
  box-shadow:0 0 18px rgba(255,194,75,.1),var(--shadow-card);
}
.stat-pill .dot{
  width:10px;height:10px;border-radius:50%;background:var(--neon);
  box-shadow:0 0 12px var(--neon);flex:0 0 10px;
}
.stat-pill .val{font-size:26px;font-weight:800;color:var(--gold);line-height:1.1;min-width:104px;}
.stat-pill .desc{font-size:13px;color:var(--text-mid);line-height:1.5;}

/* ---------- 主推入口网格 ---------- */
.grid-entries{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.entry-card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius-lg);
  background:linear-gradient(160deg,#1A1636,#221B44);
  border:1px solid var(--line-neon);
  box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.entry-card:hover{transform:translateY(-6px);border-color:var(--neon);box-shadow:var(--shadow-card-hover);}
.entry-card.span-2{grid-column:span 2;}
.card-cover{position:relative;aspect-ratio:16/10;overflow:hidden;border-radius:20px 20px 0 0;}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.entry-card:hover .card-cover img{transform:scale(1.04);}
.card-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,9,24,.15) 0%,rgba(10,9,24,.72) 100%);
}
.badge-gold{
  position:absolute;top:14px;left:14px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700;
  color:#3B2A00;background:var(--gold);
  box-shadow:0 6px 18px rgba(255,194,75,.3);
}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:19px;line-height:1.4;}
.card-body p{font-size:15px;color:var(--text-mid);}
.card-foot{
  margin-top:auto;padding-top:14px;display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line);font-size:13px;color:var(--text-low);
}
.card-foot .arrow{color:var(--neon);font-weight:700;transition:transform .2s ease;}
.entry-card:hover .card-foot .arrow{transform:translateX(4px);}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:8px;
  font-size:12px;color:var(--text-mid);background:rgba(255,255,255,.05);
  border:1px solid var(--line);
}
.tag.neon{color:var(--neon);border-color:var(--line-neon);background:rgba(61,232,200,.08);}

/* ---------- 指标 / 参数 ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.metric-card{
  padding:26px 24px;border-radius:var(--radius-md);
  background:linear-gradient(160deg,#1A1636,#221B44);
  border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.metric-card .val{font-size:34px;font-weight:800;color:var(--gold);line-height:1.1;margin-bottom:8px;}
.metric-card .lab{font-size:15px;color:var(--text-hi);font-weight:600;margin-bottom:6px;}
.metric-card .sub{font-size:13px;color:var(--text-low);}
.compare{
  margin-top:34px;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);background:rgba(18,16,42,.7);
}
.compare table{width:100%;border-collapse:collapse;font-size:15px;}
.compare th,.compare td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--line);}
.compare thead th{color:var(--text-hi);font-size:14px;font-weight:700;background:rgba(36,30,74,.65);}
.compare tbody th{color:var(--text-mid);font-weight:500;background:rgba(255,255,255,.02);}
.compare tbody td{color:var(--text-mid);}
.compare tbody tr:last-child th,.compare tbody tr:last-child td{border-bottom:0;}
.compare .ok{color:var(--neon);font-weight:600;}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.step{
  position:relative;padding:26px 22px;border-radius:var(--radius-md);
  background:rgba(26,22,54,.66);border:1px solid var(--line);
}
.step .idx{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;margin-bottom:14px;
  background:rgba(61,232,200,.12);color:var(--neon);font-weight:800;
  border:1px solid var(--line-neon);
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--text-mid);}

/* ---------- 评价轮播 ---------- */
.review-wrap{position:relative;}
.review-track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 2px 20px;scrollbar-width:none;
}
.review-track::-webkit-scrollbar{display:none;}
.review-card{
  flex:0 0 360px;scroll-snap-align:start;
  padding:26px 24px;border-radius:var(--radius-lg);
  background:linear-gradient(160deg,#14112C,#1B1638);
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  display:flex;flex-direction:column;gap:14px;
}
.review-top{display:flex;align-items:center;gap:12px;}
.avatar{
  width:44px;height:44px;border-radius:50%;flex:0 0 44px;
  background:radial-gradient(circle at 32% 28%,#3DE8C8,#241E4A);
  border:1px solid var(--line-neon);
  display:flex;align-items:center;justify-content:center;
  color:#06221D;font-weight:800;font-size:15px;
}
.review-name{font-size:15px;color:var(--text-hi);font-weight:700;}
.review-role{font-size:12px;color:var(--text-low);}
.stars{color:var(--gold);font-size:14px;letter-spacing:2px;}
.review-card blockquote{margin:0;font-size:15px;color:var(--text-mid);line-height:1.8;}
.review-meta{margin-top:auto;font-size:12px;color:var(--text-low);}
.review-nav{display:flex;gap:10px;justify-content:flex-end;margin-top:6px;}
.review-nav button{
  width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(61,232,200,.45);background:transparent;color:var(--neon);
  font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:background .2s ease,transform .2s ease;
}
.review-nav button:hover{background:rgba(61,232,200,.14);transform:translateY(-2px);}

/* ---------- 保障条 ---------- */
.guard-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-1);}
.guard-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));}
.guard-item{padding:30px 24px;border-right:1px solid var(--line);}
.guard-item:last-child{border-right:0;}
.guard-item .ico{
  width:34px;height:34px;border-radius:10px;border:1px solid var(--line-neon);
  display:flex;align-items:center;justify-content:center;color:var(--neon);
  margin-bottom:14px;font-weight:700;
}
.guard-item h3{font-size:16px;margin-bottom:6px;}
.guard-item p{font-size:14px;color:var(--text-mid);}

/* ---------- CTA 带 ---------- */
.cta-band{
  border-radius:28px;padding:44px 46px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  background:linear-gradient(112deg,rgba(36,30,74,.96) 0%,rgba(30,88,86,.85) 62%,rgba(61,232,200,.28) 100%);
  border:1px solid rgba(61,232,200,.28);
  box-shadow:0 20px 50px rgba(6,4,20,.5);
}
.cta-band h2{font-size:28px;margin-bottom:10px;}
.cta-band p{font-size:15px;color:var(--text-mid);max-width:620px;}

/* ---------- 登录面板 ---------- */
.panel-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:44px;align-items:start;}
.login-panel{
  padding:32px 30px;border-radius:var(--radius-lg);
  background:linear-gradient(160deg,#1A1636,#221B44);
  border:1px solid var(--line-neon);box-shadow:var(--shadow-card);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--text-mid);margin-bottom:8px;}
.input{
  width:100%;height:48px;padding:0 16px;border-radius:12px;
  background:#151030;border:1px solid rgba(255,255,255,.1);color:var(--text-hi);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.input::placeholder{color:var(--text-low);}
.input:focus{outline:none;border-color:var(--neon);box-shadow:0 0 0 3px rgba(61,232,200,.18);}
.field.error .input{border-color:var(--pink);}
.field .hint{font-size:12px;color:var(--text-low);margin-top:6px;}
.field.error .hint{color:var(--pink);}
.panel-aux{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-low);margin-top:14px;flex-wrap:wrap;gap:10px;}
.panel-aux a:hover{color:var(--neon);}
.info-list li{
  display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line);font-size:15px;
}
.info-list li:last-child{border-bottom:0;}
.info-list .bullet{color:var(--neon);font-weight:700;}

/* ---------- CMS 列表 ---------- */
.cms-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.cms-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--radius-lg);
  background:linear-gradient(160deg,#1A1636,#221B44);
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.cms-card:hover{transform:translateY(-6px);border-color:var(--neon);box-shadow:var(--shadow-card-hover);}
.cms-card .card-cover{aspect-ratio:16/10;}
.cms-card .cms-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.cms-card h3{
  font-size:18px;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-card .cms-excerpt{
  font-size:14px;color:var(--text-mid);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-low);
}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;border-radius:var(--radius-lg);
  border:1px dashed var(--line-neon);background:rgba(26,22,54,.5);
}
.empty-state p{color:var(--text-mid);margin-bottom:14px;}
.empty-state a{color:var(--neon);font-weight:600;}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  border-radius:16px;border:1px solid var(--line);background:rgba(26,22,54,.62);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.open{border-color:var(--line-neon);box-shadow:0 0 0 1px rgba(61,232,200,.18),0 12px 30px rgba(6,4,20,.45);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  color:var(--text-hi);font-size:17px;font-weight:600;
}
.faq-q .plus{
  flex:0 0 26px;width:26px;height:26px;border-radius:8px;position:relative;
  border:1px solid var(--line-neon);transition:transform .24s ease,background .24s ease;
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  background:var(--neon);border-radius:2px;
}
.faq-q .plus::before{width:12px;height:2px;}
.faq-q .plus::after{width:2px;height:12px;transition:opacity .24s ease;}
.faq-item.open .faq-q .plus{transform:rotate(180deg);background:rgba(61,232,200,.14);}
.faq-item.open .faq-q .plus::after{opacity:0;}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .24s ease;
  border-left:3px solid transparent;
}
.faq-item.open .faq-a{border-left-color:var(--neon);}
.faq-a p{padding:0 22px 20px 22px;font-size:15px;color:var(--text-mid);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-0);border-top:1px solid var(--line);position:relative;padding-top:64px;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--neon),var(--pink),transparent);opacity:.7;
}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;}
.foot-col h4{font-size:15px;margin-bottom:16px;color:var(--text-hi);}
.foot-col p{font-size:14px;color:var(--text-low);}
.foot-col li{margin-bottom:10px;}
.foot-col li a{
  font-size:14px;color:var(--text-low);display:inline-block;
  transition:color .2s ease,transform .2s ease;
}
.foot-col li a:hover{color:var(--neon);transform:translateX(2px);}
.foot-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;}
.foot-bottom{
  border-top:1px solid var(--line);padding:20px 0 28px;text-align:center;
  font-size:13px;color:var(--text-low);
}
.foot-bottom span{margin:0 8px;}
.foot-bottom a:hover{color:var(--neon);}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-cta.desk{display:none;}
  .nav-toggle{display:flex;}
  .hero{margin-top:56px;min-height:auto;}
  .hero-inner{grid-template-columns:1fr;gap:34px;padding:56px 0 62px;}
  .hero h1{font-size:36px;}
  .hero-sub{font-size:17px;}
  .section{padding:64px 0;}
  .section-head h2{font-size:26px;}
  .grid-entries{grid-template-columns:repeat(2,minmax(0,1fr));}
  .entry-card.span-2{grid-column:span 2;}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .guard-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .guard-item:nth-child(2){border-right:0;}
  .guard-item:nth-child(1),.guard-item:nth-child(2){border-bottom:1px solid var(--line);}
  .cms-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .review-card{flex:0 0 320px;}
  .panel-grid{grid-template-columns:1fr;gap:30px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 30px;}
  .cta-band h2{font-size:24px;}
  .compare{overflow-x:auto;}
  .compare table{min-width:640px;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  .nav-inner{height:56px;}
  .logo-text span{display:none;}
  .drawer{inset:56px 0 0 0;}
  .hero-inner{padding:44px 0 52px;}
  .hero h1{font-size:29px;line-height:1.2;}
  .hero-sub{font-size:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .btn{width:100%;}
  .stat-pill{flex-wrap:wrap;gap:10px;padding:16px 18px;border-radius:20px;}
  .stat-pill .val{font-size:22px;min-width:auto;}
  .section{padding:48px 0;}
  .section-head h2{font-size:22px;}
  .grid-entries,.cms-grid,.metric-grid,.steps,.guard-grid{grid-template-columns:1fr;}
  .entry-card.span-2{grid-column:span 1;}
  .entry-card,.cms-card,.faq-item{border-radius:18px;}
  .card-cover{border-radius:18px 18px 0 0;}
  .guard-item{border-right:0;border-bottom:1px solid var(--line);padding:24px 20px;}
  .guard-item:last-child{border-bottom:0;}
  .review-card{flex:0 0 84%;}
  .review-nav{display:none;}
  .cta-band{border-radius:20px;padding:28px 20px;}
  .cta-band .btn{width:100%;}
  .login-panel{padding:24px 20px;}
  .faq-q{font-size:16px;padding:16px 18px;}
  .faq-a p{padding:0 18px 18px 18px;}
  .foot-grid{grid-template-columns:1fr;}
  .site-footer{padding-top:48px;}
}

/* roulang page: article */
:root{
  --bg-0:#0A0918; --bg-1:#12102A; --surface:#1A1636; --surface-2:#241E4A;
  --neon:#3DE8C8; --gold:#FFC24B; --pink:#FF5FA2;
  --text-hi:#F2F0FF; --text-mid:#B6B0D6; --text-low:#7A739E;
  --line:rgba(255,255,255,.08);
  --neon-line:rgba(61,232,200,.16);
  --radius-lg:24px; --radius-md:18px; --radius-sm:12px;
  --shadow-card:0 10px 30px rgba(6,4,20,.55);
  --shadow-hover:0 18px 44px rgba(61,232,200,.14);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg-0);color:var(--text-mid);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.8;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
a:focus-visible,button:focus-visible,input:focus-visible,.faq-q:focus-visible{outline:2px solid var(--neon);outline-offset:3px;border-radius:6px;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4{color:var(--text-hi);margin:0;letter-spacing:0;font-weight:800;line-height:1.25;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ header / nav ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,9,24,.86);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,var(--neon),var(--pink) 45%,transparent 85%);
  opacity:.65;
}
.nav-inner{
  display:flex;align-items:center;gap:22px;height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:26px;height:26px;border-radius:9px;flex:0 0 auto;display:inline-block;
  background:radial-gradient(circle at 30% 30%,#8ff6e2 0%,var(--neon) 38%,#1a6a5e 100%);
  box-shadow:0 0 14px rgba(61,232,200,.55),inset 0 0 6px rgba(10,9,24,.6);
  position:relative;
}
.logo-mark::after{
  content:"";position:absolute;right:-3px;top:-3px;width:8px;height:8px;border-radius:50%;
  background:var(--gold);box-shadow:0 0 10px rgba(255,194,75,.8);
}
.brand-name{color:var(--text-hi);font-size:16px;font-weight:800;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:nowrap;}
.nav-link{
  position:relative;font-size:15px;color:var(--text-mid);padding:8px 10px;border-radius:8px;
  white-space:nowrap;transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:10px;right:10px;bottom:2px;height:2px;border-radius:2px;
  background:var(--neon);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
  box-shadow:0 0 10px rgba(61,232,200,.8);
}
.nav-link:hover{color:var(--text-hi);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--neon);text-shadow:0 0 10px rgba(61,232,200,.5);}
.nav-link.active::after{transform:scaleX(1);}
.nav-cta{
  display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 18px;border-radius:999px;
  background:var(--neon);color:#05201C;font-weight:800;font-size:15px;white-space:nowrap;
  box-shadow:0 0 0 1px rgba(61,232,200,.5),0 8px 22px rgba(61,232,200,.28);
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease;
}
.nav-cta:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(61,232,200,.7),0 14px 30px rgba(61,232,200,.34);}
.nav-cta:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(61,232,200,.5),0 4px 12px rgba(61,232,200,.2);}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  align-items:center;justify-content:center;margin-left:auto;background:rgba(255,255,255,.03);
}
.burger span{display:block;width:18px;height:2px;background:var(--text-hi);position:relative;border-radius:2px;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-hi);border-radius:2px;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
.drawer{
  position:fixed;inset:0;z-index:90;background:rgba(10,9,24,.98);
  padding:24px;display:none;flex-direction:column;gap:8px;
}
.drawer.open{display:flex;}
.drawer-close{align-self:flex-end;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);color:var(--text-hi);font-size:20px;}
.drawer a.drawer-link{
  padding:14px 14px;border-radius:12px;color:var(--text-mid);font-size:17px;font-weight:600;
  border-left:3px solid transparent;
}
.drawer a.drawer-link.active{color:var(--neon);border-left-color:var(--neon);background:rgba(61,232,200,.07);}
.drawer .nav-cta{margin-top:18px;justify-content:center;width:100%;height:46px;font-size:16px;}

/* ============ breadcrumb ============ */
.crumb-bar{border-bottom:1px solid var(--line);background:var(--bg-1);}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:14px 0;font-size:13.5px;color:var(--text-low);}
.crumb a:hover{color:var(--neon);}
.crumb .sep{opacity:.5;}
.crumb .current{color:var(--text-mid);}

/* ============ article head ============ */
.article-head{
  position:relative;overflow:hidden;padding:56px 0 40px;
  background:
    radial-gradient(700px 320px at 12% 0%,rgba(61,232,200,.14),transparent 62%),
    radial-gradient(620px 300px at 92% 100%,rgba(255,95,162,.12),transparent 66%),
    linear-gradient(180deg,#0A0918 0%,#12102A 100%);
  border-bottom:1px solid var(--line);
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 12px;border-radius:999px;
  font-size:13px;color:var(--text-mid);border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.tag.neon{color:var(--neon);border-color:var(--neon-line);background:rgba(61,232,200,.08);}
.tag.gold{color:var(--gold);border-color:rgba(255,194,75,.3);background:rgba(255,194,75,.08);}
h1.article-title{
  font-size:42px;line-height:1.18;max-width:900px;margin-bottom:22px;
}
.meta-bar{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:var(--text-low);}
.meta-bar b{color:var(--text-mid);font-weight:600;}
.meta-bar .dot{width:4px;height:4px;border-radius:50%;background:var(--text-low);align-self:center;}

/* ============ main layout ============ */
.page-main{padding:56px 0 88px;}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start;}
.reading{max-width:760px;}

.article-card{
  background:linear-gradient(160deg,#1A1636,#221B44);
  border:1px solid var(--neon-line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);padding:36px 38px;
}
.article-body{font-size:17px;line-height:1.85;color:var(--text-mid);}
.article-body p{margin:0 0 1.4em;}
.article-body h2{
  font-size:30px;margin:2.2em 0 .7em;padding-left:14px;border-left:3px solid var(--neon);
  line-height:1.35;
}
.article-body h2:first-child{margin-top:0;}
.article-body h3{font-size:19px;margin:1.6em 0 .6em;color:var(--text-hi);}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:0;}
.article-body li{position:relative;padding-left:20px;margin-bottom:.6em;}
.article-body li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:50%;
  background:var(--neon);box-shadow:0 0 8px rgba(61,232,200,.7);
}
.article-body ol{counter-reset:item;}
.article-body ol li{padding-left:26px;counter-increment:item;}
.article-body ol li::before{
  content:counter(item);background:none;box-shadow:none;color:var(--neon);font-weight:700;
  left:0;top:0;width:auto;height:auto;font-size:15px;
}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;border-left:3px solid var(--neon);
  background:rgba(61,232,200,.06);border-radius:0 14px 14px 0;color:var(--text-mid);
}
.article-body img{border-radius:16px;margin:1.6em 0;width:100%;}
.article-body a{color:var(--neon);border-bottom:1px solid rgba(61,232,200,.35);}
.article-body a:hover{color:var(--gold);border-bottom-color:rgba(255,194,75,.5);}
.article-body strong{color:var(--text-hi);font-weight:700;}
.article-body table{width:100%;border-collapse:separate;border-spacing:0;margin:1.6em 0;font-size:15px;
  border:1px solid var(--line);border-radius:14px;overflow:hidden;}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);}
.article-body th{background:rgba(61,232,200,.07);color:var(--text-hi);font-weight:700;}
.article-body tr:last-child td{border-bottom:0;}
.article-body code{background:rgba(255,255,255,.06);padding:2px 6px;border-radius:6px;font-size:15px;color:var(--gold);}

.empty-state{text-align:center;padding:56px 24px;border:1px dashed var(--line);border-radius:var(--radius-lg);background:var(--bg-1);}
.empty-state h2{font-size:24px;margin-bottom:12px;}
.empty-state p{margin-bottom:20px;color:var(--text-mid);}

/* ============ sidebar ============ */
.side-card{
  background:linear-gradient(160deg,#1A1636,#221B44);border:1px solid var(--line);
  border-radius:var(--radius-md);padding:22px;box-shadow:var(--shadow-card);margin-bottom:20px;
}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--neon);box-shadow:0 0 8px rgba(61,232,200,.8);}
.side-list li{margin-bottom:10px;}
.side-list a{font-size:14.5px;color:var(--text-mid);display:flex;gap:8px;align-items:flex-start;}
.side-list a:hover{color:var(--neon);}
.side-list a .arw{color:var(--neon);flex:0 0 auto;}
.sticky{position:sticky;top:92px;}
.side-cta{
  background:linear-gradient(150deg,rgba(61,232,200,.16),rgba(36,30,74,.9));
  border:1px solid var(--neon-line);border-radius:var(--radius-md);padding:22px;text-align:center;
}
.side-cta p{font-size:14px;margin-bottom:14px;color:var(--text-mid);}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;
  border-radius:999px;font-size:15.5px;font-weight:800;transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,background .18s ease;
}
.btn-primary{background:var(--neon);color:#05201C;box-shadow:0 0 0 1px rgba(61,232,200,.5),0 10px 26px rgba(61,232,200,.26);}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(61,232,200,.75),0 16px 34px rgba(61,232,200,.32);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(61,232,200,.5),0 4px 12px rgba(61,232,200,.2);}
.btn-ghost{background:transparent;color:var(--neon);box-shadow:inset 0 0 0 1px rgba(61,232,200,.55);}
.btn-ghost:hover{background:rgba(61,232,200,.12);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}

/* ============ related ============ */
.section{padding:64px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px;}
.section-head h2{font-size:30px;}
.section-head p{font-size:14.5px;color:var(--text-low);margin-top:6px;}
.link-more{font-size:14.5px;color:var(--neon);}
.link-more:hover{color:var(--gold);}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.mini-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:20px;
  background:linear-gradient(160deg,#1A1636,#221B44);border:1px solid var(--neon-line);
  box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.mini-card:hover{transform:translateY(-6px);border-color:rgba(61,232,200,.55);box-shadow:0 0 0 1px rgba(61,232,200,.35),var(--shadow-hover);}
.mini-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#0e0c22;}
.mini-card .thumb img{width:100%;height:100%;object-fit:cover;}
.mini-card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,9,24,0) 40%,rgba(10,9,24,.85) 100%);}
.mini-card .body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.mini-card h3{font-size:17.5px;line-height:1.45;}
.mini-card .date{font-size:13px;color:var(--text-low);margin-top:auto;}

/* ============ back bar ============ */
.back-bar{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  margin-top:40px;padding:22px 26px;border-radius:20px;background:var(--bg-1);border:1px solid var(--line);}
.back-bar p{font-size:15px;color:var(--text-mid);}

/* ============ footer ============ */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);position:relative;margin-top:88px;}
.site-footer::before{content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--neon),var(--pink) 50%,transparent 88%);opacity:.6;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding:56px 0 36px;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-col h4{font-size:15px;margin-bottom:16px;color:var(--text-hi);}
.foot-col p{font-size:14px;color:var(--text-low);line-height:1.85;}
.foot-col ul li{margin-bottom:10px;}
.foot-col ul a{font-size:14px;color:var(--text-low);display:inline-block;transition:transform .18s ease,color .18s ease;}
.foot-col ul a:hover{color:var(--neon);transform:translateX(2px);}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:center;
  padding:20px 0 30px;border-top:1px solid var(--line);font-size:13px;color:var(--text-low);
}

/* ============ responsive ============ */
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-cta{display:none;}
  .burger{display:flex;}
  .layout{grid-template-columns:minmax(0,1fr);}
  .reading{max-width:none;}
  .sticky{position:static;}
  .h1.article-title{font-size:34px;}
  h1.article-title{font-size:34px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .article-card{padding:28px 24px;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  h1.article-title{font-size:28px;}
  .article-head{padding:36px 0 28px;}
  .page-main{padding:36px 0 64px;}
  .article-card{padding:22px 18px;border-radius:18px;}
  .article-body{font-size:16.5px;}
  .article-body h2{font-size:23px;}
  .card-grid{grid-template-columns:1fr;}
  .section{padding:44px 0 0;}
  .section-head h2{font-size:23px;}
  .foot-grid{grid-template-columns:1fr;gap:24px;padding:40px 0 28px;}
  .btn{width:100%;}
  .back-bar{flex-direction:column;align-items:stretch;}
}

/* roulang page: category1 */
:root{
  --bg-0:#0A0918; --bg-1:#12102A; --surface:#1A1636; --surface-2:#241E4A;
  --neon:#3DE8C8; --gold:#FFC24B; --pink:#FF5FA2;
  --text-hi:#F2F0FF; --text-mid:#B6B0D6; --text-low:#7A739E;
  --line:rgba(255,255,255,.08);
  --radius:22px; --radius-sm:16px;
  --shadow:0 10px 30px rgba(6,4,20,.55);
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;font-family:var(--font);background:var(--bg-0);color:var(--text-mid);
  font-size:16px;line-height:1.8;font-weight:400;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;color:var(--text-hi);font-weight:800;letter-spacing:0;line-height:1.2;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;position:relative;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:740px;margin-bottom:38px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--neon);
  letter-spacing:.06em;margin-bottom:12px;font-weight:600;
}
.section-head .eyebrow::before{content:"";width:18px;height:1px;background:var(--neon);display:inline-block;}
.section-head h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:14px;}
.section-head p{color:var(--text-mid);font-size:16px;max-width:680px;}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,9,24,.86);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,var(--neon),var(--pink) 55%,rgba(255,95,162,0));
}
.header-inner{display:flex;align-items:center;gap:22px;height:68px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--text-hi);white-space:nowrap;}
.logo-mark{
  position:relative;width:30px;height:30px;border-radius:10px;flex:0 0 auto;
  background:radial-gradient(circle at 32% 28%,#9FFFF0,rgba(61,232,200,.18) 70%);
  box-shadow:0 0 18px rgba(61,232,200,.45),inset 0 0 0 1px rgba(61,232,200,.5);
}
.logo-mark::after{
  content:"";position:absolute;top:5px;right:5px;width:5px;height:5px;border-radius:50%;
  background:var(--gold);box-shadow:0 0 8px rgba(255,194,75,.9);
}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;
  font-size:15px;color:var(--text-mid);border-radius:10px;
  transition:color .18s ease,background .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--neon),var(--pink));
  opacity:0;transform:scaleX(.4);transition:opacity .18s ease,transform .18s ease;
}
.nav-link:hover{color:var(--text-hi);}
.nav-link:hover::after{opacity:.55;transform:scaleX(1);}
.nav-link.active{color:var(--neon);text-shadow:0 0 12px rgba(61,232,200,.55);}
.nav-link.active::after{opacity:1;transform:scaleX(1);box-shadow:0 0 10px rgba(61,232,200,.7);}
.nav-cta{margin-left:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:12px;margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-hi);border-radius:2px;position:relative;transition:.2s;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-hi);border-radius:2px;transition:.2s;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-drawer{
  display:none;position:fixed;left:0;right:0;top:56px;bottom:0;z-index:79;
  background:rgba(10,9,24,.98);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  padding:22px 24px 32px;overflow-y:auto;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:block;padding:15px 14px;border-radius:14px;font-size:16px;color:var(--text-mid);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a.active{color:var(--neon);border-left:3px solid var(--neon);background:rgba(61,232,200,.07);}
.mobile-drawer .drawer-cta{margin-top:22px;width:100%;}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;letter-spacing:.01em;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,filter .2s ease,color .2s ease;
}
.btn-primary{
  background:var(--neon);color:#052A21;
  box-shadow:0 0 24px rgba(61,232,200,.34);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 36px rgba(61,232,200,.52);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 14px rgba(61,232,200,.3);}
.btn-ghost{
  background:transparent;border-color:rgba(61,232,200,.6);color:var(--neon);
}
.btn-ghost:hover{background:rgba(61,232,200,.12);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}

/* ============ Banner ============ */
.page-banner{
  position:relative;isolation:isolate;overflow:hidden;
  padding:66px 0 62px;
  background-color:#0C0A20;
  background-image:
    radial-gradient(760px 420px at 12% 8%,rgba(61,232,200,.20),transparent 62%),
    radial-gradient(620px 400px at 92% 96%,rgba(255,95,162,.16),transparent 62%),
    linear-gradient(180deg,rgba(10,9,24,.82),rgba(10,9,24,.96)),
    url('/assets/images/backpic/back-1.png');
  background-size:cover,cover,cover,cover;
  background-position:center;
}
.page-banner::after{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.55) 1px,transparent 1px);
  background-size:180px 180px;opacity:.14;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-low);margin-bottom:22px;}
.crumbs a:hover{color:var(--neon);}
.crumbs span{opacity:.6;}
.banner-grid{display:grid;grid-template-columns:1.45fr .95fr;gap:44px;align-items:center;}
.banner-copy h1{
  font-size:clamp(28px,4.4vw,48px);line-height:1.15;margin-bottom:18px;
}
.banner-copy h1 .hl{
  background:linear-gradient(96deg,var(--neon),var(--gold));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.banner-sub{font-size:17px;color:var(--text-hi);font-weight:600;margin-bottom:14px;}
.banner-text{color:var(--text-mid);max-width:640px;margin-bottom:26px;}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.chips{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:999px;
  font-size:13px;color:var(--text-mid);background:rgba(36,30,74,.7);
  border:1px solid var(--line);transition:.2s ease;
}
.chip::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--neon);box-shadow:0 0 8px rgba(61,232,200,.8);}
.chip:hover{border-color:rgba(61,232,200,.5);color:var(--text-hi);}
.pill-stack{display:grid;gap:14px;}
.pill{
  display:flex;align-items:center;gap:14px;padding:16px 18px;border-radius:18px;
  background:linear-gradient(160deg,#1A1636,#221B44);
  border:1px solid rgba(255,194,75,.28);box-shadow:var(--shadow);
}
.pill b{
  font-size:24px;color:var(--gold);font-weight:800;line-height:1;
  text-shadow:0 0 16px rgba(255,194,75,.4);min-width:78px;
}
.pill small{display:block;font-size:13px;color:var(--text-low);line-height:1.5;}

/* ============ Entry Grid ============ */
.entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.entry-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--radius);
  background:linear-gradient(160deg,#1A1636,#221B44);
  border:1px solid rgba(61,232,200,.16);box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.entry-card:hover{
  transform:translateY(-6px);border-color:var(--neon);
  box-shadow:0 0 0 1px rgba(61,232,200,.35),0 18px 44px rgba(61,232,200,.14);
}
.card-cover{position:relative;overflow:hidden;}
.card-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease;}
.entry-card:hover .card-cover img{transform:scale(1.04);}
.card-cover::after{
  content:"";position:absolute;inset:auto 0 0 0;height:52%;
  background:linear-gradient(180deg,rgba(10,9,24,0),rgba(10,9,24,.78));
}
.card-badge{
  position:absolute;top:14px;left:14px;z-index:2;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:700;
  background:rgba(255,194,75,.16);color:var(--gold);border:1px solid rgba(255,194,75,.55);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:19px;margin-bottom:10px;}
.card-body p{font-size:15px;color:var(--text-mid);margin-bottom:18px;}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:16px;border-top:1px solid var(--line);
}
.tag-mini{font-size:12px;color:var(--text-low);border:1px solid var(--line);border-radius:999px;padding:4px 10px;}
.card-link{font-size:14px;font-weight:700;color:var(--neon);white-space:nowrap;}
.card-link:hover{color:var(--gold);}

/* ============ Lead + Steps ============ */
.lead-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;}
.lead-figure{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.lead-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.lead-figure figcaption{
  position:absolute;left:16px;bottom:16px;right:16px;padding:12px 16px;border-radius:14px;
  font-size:13px;color:var(--text-hi);background:rgba(10,9,24,.72);
  border:1px solid rgba(61,232,200,.3);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.lead-copy h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:16px;}
.lead-copy p{margin-bottom:20px;}
.steps{display:grid;gap:14px;}
.step{
  display:flex;gap:16px;padding:18px 20px;border-radius:var(--radius-sm);
  background:var(--surface);border:1px solid var(--line);transition:.2s ease;
}
.step:hover{border-color:rgba(61,232,200,.45);transform:translateX(4px);}
.step-no{
  flex:0 0 auto;width:34px;height:34px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:15px;color:#052A21;background:var(--neon);
  box-shadow:0 0 16px rgba(61,232,200,.35);
}
.step h3{font-size:17px;margin-bottom:6px;}
.step p{font-size:14.5px;color:var(--text-mid);}

/* ============ Guard Bar ============ */
.guard-bar{
  background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:34px 0;
}
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.guard-item{padding:0 22px;border-left:1px solid var(--line);}
.guard-item:first-child{border-left:0;padding-left:0;}
.guard-item:last-child{padding-right:0;}
.guard-icon{
  width:34px;height:34px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(61,232,200,.45);margin-bottom:12px;
}
.guard-icon svg{width:17px;height:17px;stroke:var(--neon);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.guard-item b{display:block;color:var(--text-hi);font-size:16px;margin-bottom:6px;}
.guard-item p{font-size:14px;color:var(--text-low);}

/* ============ Compare Table ============ */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface);
  box-shadow:var(--shadow);
}
.table-scroll{overflow-x:auto;}
table.cmp{width:100%;border-collapse:collapse;min-width:720px;}
table.cmp th,table.cmp td{padding:16px 20px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line);}
table.cmp thead th{
  background:rgba(36,30,74,.85);color:var(--text-hi);font-size:14px;font-weight:700;white-space:nowrap;
}
table.cmp tbody tr:hover{background:rgba(61,232,200,.05);}
table.cmp td:first-child{color:var(--text-hi);font-weight:600;}
table.cmp tr:last-child td{border-bottom:0;}
.ok{color:var(--neon);font-weight:600;}
.warn{color:var(--gold);font-weight:600;}

/* ============ FAQ ============ */
.faq-list{max-width:780px;margin:0 auto;display:grid;gap:14px;}
.faq-item{
  border-radius:var(--radius-sm);background:var(--surface);
  border:1px solid var(--line);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.open{
  border-color:rgba(61,232,200,.5);
  box-shadow:0 0 0 1px rgba(61,232,200,.2),0 12px 30px rgba(6,4,20,.5);
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;text-align:left;padding:18px 20px;
  color:var(--text-hi);font-size:17px;font-weight:600;line-height:1.6;
}
.faq-q .sign{
  position:relative;flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  border:1px solid rgba(61,232,200,.5);transition:transform .24s ease;
}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--neon);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-q .sign::before{width:10px;height:1.6px;}
.faq-q .sign::after{width:1.6px;height:10px;transition:opacity .2s ease;}
.faq-item.open .sign{transform:rotate(90deg);}
.faq-item.open .sign::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.faq-a-inner{
  padding:0 20px 20px 20px;font-size:15px;color:var(--text-mid);
  border-left:3px solid var(--neon);margin-left:20px;padding-left:16px;
}

/* ============ CTA band ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;padding:44px 46px;
  background:
    radial-gradient(540px 260px at 8% 0%,rgba(61,232,200,.24),transparent 62%),
    linear-gradient(120deg,#241E4A,#12102A 62%);
  border:1px solid rgba(61,232,200,.3);
  box-shadow:0 18px 50px rgba(6,4,20,.6);
  display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band h2{font-size:clamp(20px,2.4vw,28px);margin-bottom:10px;}
.cta-band p{font-size:15px;color:var(--text-mid);max-width:620px;}

/* ============ Other categories ============ */
.mini-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.mini-card{
  display:block;border-radius:var(--radius);overflow:hidden;background:var(--surface);
  border:1px solid var(--line);box-shadow:var(--shadow);transition:.2s ease;
}
.mini-card:hover{transform:translateY(-6px);border-color:var(--neon);box-shadow:0 0 0 1px rgba(61,232,200,.32),0 18px 40px rgba(61,232,200,.12);}
.mini-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.mini-card div{padding:18px 20px 20px;}
.mini-card h3{font-size:17px;margin-bottom:8px;}
.mini-card p{font-size:14px;color:var(--text-low);}
.mini-card span{display:inline-block;margin-top:12px;font-size:13px;font-weight:700;color:var(--neon);}

/* ============ Footer ============ */
.site-footer{
  position:relative;background:var(--bg-0);border-top:1px solid var(--line);
  padding:56px 0 26px;margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(61,232,200,0),var(--neon),var(--pink),rgba(255,95,162,0));
}
.foot-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:34px;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-col p{font-size:14px;color:var(--text-low);line-height:1.85;}
.foot-col h4{font-size:15px;color:var(--text-hi);margin-bottom:14px;font-weight:700;}
.foot-col ul{list-style:none;}
.foot-col li{margin-bottom:10px;}
.foot-col a{font-size:14px;color:var(--text-low);transition:.18s ease;display:inline-block;}
.foot-col a:hover{color:var(--neon);transform:translateX(2px);}
.foot-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px;
  font-size:13px;color:var(--text-low);
}

/* ============ Responsive ============ */
@media (max-width:1023px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{height:56px;}
  .mobile-drawer{top:56px;}
  .section{padding:64px 0;}
  .banner-grid{grid-template-columns:1fr;gap:32px;}
  .pill-stack{grid-template-columns:repeat(3,minmax(0,1fr));}
  .pill{flex-direction:column;align-items:flex-start;gap:6px;}
  .lead-grid{grid-template-columns:1fr;gap:30px;}
  .guard-grid{grid-template-columns:repeat(2,1fr);gap:26px 0;}
  .guard-item:nth-child(3){border-left:0;padding-left:0;}
  .guard-item{padding:0 20px;}
  .mini-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;}
  .cta-band{flex-direction:column;align-items:flex-start;}
}
@media (max-width:767px){
  .entry-grid{grid-template-columns:1fr;}
  .mini-grid{grid-template-columns:1fr;}
  .pill-stack{grid-template-columns:1fr;}
  .cta-band{padding:30px 22px;border-radius:22px;}
  .cta-band .btn{width:100%;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .page-banner{padding:40px 0 44px;}
  .banner-copy h1{font-size:28px;}
  .banner-actions .btn{width:100%;}
  .entry-card,.mini-card{border-radius:18px;}
  .guard-grid{grid-template-columns:1fr;gap:0;}
  .guard-item{border-left:0;padding:18px 0;border-bottom:1px solid var(--line);}
  .guard-item:last-child{border-bottom:0;}
  .foot-grid{grid-template-columns:1fr;}
  .logo{font-size:15px;}
}

/* roulang page: category2 */
:root{
    --bg-0:#0A0918;
    --bg-1:#12102A;
    --surface:#1A1636;
    --surface-2:#241E4A;
    --neon:#3DE8C8;
    --gold:#FFC24B;
    --pink:#FF5FA2;
    --text-hi:#F2F0FF;
    --text-mid:#B6B0D6;
    --text-low:#7A739E;
    --line:rgba(255,255,255,.08);
    --line-neon:rgba(61,232,200,.16);
    --radius-lg:24px;
    --radius-md:20px;
    --radius-sm:14px;
    --shadow:0 10px 30px rgba(6,4,20,.55);
    --glow:0 18px 44px rgba(61,232,200,.14);
    --ease:200ms ease;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg-0);
    color:var(--text-hi);
    font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;height:auto;}
  a{color:inherit;text-decoration:none;transition:color var(--ease),transform var(--ease);}
  button,input{font:inherit;color:inherit;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4{margin:0;letter-spacing:0;line-height:1.2;}
  p{margin:0;}
  a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--neon);outline-offset:3px;border-radius:8px;}

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

  /* ---------- header / nav ---------- */
  .site-header{
    position:sticky;top:0;z-index:70;
    background:rgba(10,9,24,.86);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
  }
  .site-header::after{
    content:"";
    display:block;height:1px;
    background:linear-gradient(90deg,var(--neon),var(--pink) 45%,transparent);
    opacity:.75;
  }
  .nav-inner{
    display:flex;align-items:center;justify-content:space-between;
    gap:20px;height:68px;
  }
  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .logo-mark{
    width:26px;height:26px;border-radius:9px;display:inline-block;position:relative;
    background:radial-gradient(circle at 32% 30%,#8ff6e2,#1d8f7a 62%,#0d3a33);
    box-shadow:0 0 0 1px rgba(61,232,200,.5),0 0 16px rgba(61,232,200,.4);
  }
  .logo-mark::after{
    content:"";position:absolute;inset:0;margin:auto;width:8px;height:8px;
    background:var(--gold);border-radius:2px;transform:rotate(45deg);
    box-shadow:0 0 10px rgba(255,194,75,.8);
  }
  .brand-text{font-size:16px;font-weight:700;color:var(--text-hi);white-space:nowrap;}
  .nav-links{display:flex;align-items:center;gap:22px;}
  .nav-link{
    position:relative;font-size:15px;color:var(--text-mid);
    padding:6px 0;white-space:nowrap;transition:color 180ms ease;
  }
  .nav-link:hover{color:var(--text-hi);}
  .nav-link.active{color:var(--neon);text-shadow:0 0 12px rgba(61,232,200,.45);}
  .nav-link.active::after{
    content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
    border-radius:2px;background:var(--neon);
    box-shadow:0 0 10px rgba(61,232,200,.85);
  }
  .nav-cta{flex:0 0 auto;}
  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:12px;
    background:rgba(61,232,200,.08);border:1px solid var(--line-neon);
    align-items:center;justify-content:center;cursor:pointer;
  }
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--neon);position:relative;border-radius:2px;}
  .nav-toggle span::before,.nav-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--neon);border-radius:2px;
  }
  .nav-toggle span::before{top:-6px;}
  .nav-toggle span::after{top:6px;}

  .mobile-drawer{
    position:fixed;inset:0;z-index:90;display:none;flex-direction:column;
    background:rgba(10,9,24,.98);padding:22px 24px 32px;
  }
  .mobile-drawer.open{display:flex;}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
  .drawer-close{
    width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.05);
    border:1px solid var(--line);cursor:pointer;font-size:20px;line-height:1;color:var(--text-hi);
  }
  .drawer-nav{display:flex;flex-direction:column;gap:4px;flex:1;}
  .drawer-link{
    padding:14px 16px;border-radius:12px;font-size:17px;color:var(--text-mid);
  }
  .drawer-link.active{
    color:var(--neon);background:rgba(61,232,200,.07);
    border-left:3px solid var(--neon);
  }
  .drawer-cta{margin-top:auto;}

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:0 22px;border-radius:999px;
    font-size:15px;font-weight:600;cursor:pointer;
    border:1px solid transparent;
    transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),filter var(--ease);
  }
  .btn-primary{
    background:var(--neon);color:#062018;
    box-shadow:0 0 0 1px rgba(61,232,200,.35),0 8px 24px rgba(61,232,200,.18);
  }
  .btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(61,232,200,.6),0 14px 34px rgba(61,232,200,.3);}
  .btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(61,232,200,.4),0 4px 14px rgba(61,232,200,.18);}
  .btn-ghost{
    background:transparent;color:var(--neon);border:1px solid rgba(61,232,200,.55);
  }
  .btn-ghost:hover{background:rgba(61,232,200,.12);transform:translateY(-2px);}
  .btn-ghost:active{transform:translateY(0);background:rgba(61,232,200,.18);}
  .btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
  .btn-lg{min-height:50px;padding:0 28px;font-size:16px;}

  /* ---------- chips ---------- */
  .chip{
    display:inline-flex;align-items:center;gap:7px;
    padding:6px 14px;border-radius:999px;font-size:13px;line-height:1.5;
    color:var(--text-mid);background:rgba(255,255,255,.04);
    border:1px solid var(--line);
  }
  .chip-gold{
    color:var(--gold);background:rgba(255,194,75,.09);
    border-color:rgba(255,194,75,.32);
  }
  .chip-neon{
    color:var(--neon);background:rgba(61,232,200,.09);
    border-color:rgba(61,232,200,.32);
  }
  .chip::before{
    content:"";width:6px;height:6px;border-radius:50%;
    background:currentColor;box-shadow:0 0 8px currentColor;flex:0 0 auto;
  }

  /* ---------- hero ---------- */
  .page-hero{
    position:relative;overflow:hidden;
    padding:64px 0 76px;
    background-image:
      radial-gradient(900px 420px at 8% 0%,rgba(61,232,200,.16),transparent 60%),
      radial-gradient(700px 420px at 96% 100%,rgba(255,95,162,.14),transparent 62%),
      linear-gradient(180deg,rgba(10,9,24,.74),rgba(10,9,24,.95)),
      url(/assets/images/backpic/back-2.webp);
    background-size:cover,cover,auto,cover;
    background-position:center;
  }
  .crumbs{
    display:flex;align-items:center;gap:10px;flex-wrap:wrap;
    font-size:13px;color:var(--text-low);margin-bottom:22px;
  }
  .crumbs a:hover{color:var(--neon);}
  .crumbs span{color:var(--text-low);opacity:.7;}
  .hero-grid{
    display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:center;
  }
  .hero-title{
    font-size:46px;font-weight:800;line-height:1.16;
    margin:18px 0 18px;letter-spacing:0;
  }
  .hero-title .hl{
    background:linear-gradient(92deg,var(--neon),var(--gold));
    -webkit-background-clip:text;background-clip:text;color:transparent;
    display:inline-block;
  }
  .hero-sub{font-size:17px;color:var(--text-mid);max-width:560px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
  .hero-panel{display:flex;flex-direction:column;gap:14px;}
  .stat-pill{
    display:flex;align-items:baseline;gap:12px;
    padding:16px 20px;border-radius:18px;
    background:linear-gradient(160deg,rgba(26,22,54,.92),rgba(36,30,74,.86));
    border:1px solid rgba(255,194,75,.26);
    box-shadow:0 0 0 1px rgba(255,194,75,.06),0 10px 26px rgba(6,4,20,.5);
    transition:transform var(--ease),box-shadow var(--ease);
  }
  .stat-pill:hover{transform:translateY(-4px);box-shadow:0 0 0 1px rgba(255,194,75,.35),0 16px 36px rgba(255,194,75,.12);}
  .stat-pill b{font-size:26px;font-weight:800;color:var(--gold);line-height:1;font-variant-numeric:tabular-nums;}
  .stat-pill span{font-size:13px;color:var(--text-mid);}

  /* ---------- sections ---------- */
  .section{padding:88px 0;}
  .section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .section-head{max-width:760px;margin-bottom:44px;}
  .section-head h2{font-size:32px;font-weight:700;}
  .section-head p{margin-top:14px;color:var(--text-mid);font-size:16px;}
  .eyebrow{
    display:inline-block;font-size:13px;letter-spacing:.08em;
    color:var(--neon);margin-bottom:12px;
  }

  /* ---------- prep block ---------- */
  .prep-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:start;}
  .prep-list{display:grid;gap:14px;}
  .prep-item{
    display:flex;gap:16px;align-items:flex-start;
    padding:18px 20px;border-radius:var(--radius-md);
    background:linear-gradient(160deg,#1A1636,#221B44);
    border:1px solid var(--line-neon);
    box-shadow:var(--shadow);
    transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
  }
  .prep-item:hover{transform:translateY(-6px);border-color:rgba(61,232,200,.5);box-shadow:0 0 0 1px rgba(61,232,200,.35),var(--glow);}
  .prep-num{
    flex:0 0 auto;width:30px;height:30px;border-radius:9px;
    display:flex;align-items:center;justify-content:center;
    font-size:14px;font-weight:700;color:var(--gold);
    background:rgba(255,194,75,.1);border:1px solid rgba(255,194,75,.3);
    font-variant-numeric:tabular-nums;
  }
  .prep-item h3{font-size:17px;font-weight:600;margin-bottom:4px;}
  .prep-item p{font-size:14px;color:var(--text-mid);line-height:1.75;}

  /* ---------- zigzag ---------- */
  .zigzag{
    display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;
    padding:56px 0;border-bottom:1px solid var(--line);
  }
  .zigzag:last-child{border-bottom:none;padding-bottom:0;}
  .zigzag.reverse .zz-media{order:2;}
  .zz-media{position:relative;}
  .zz-media img{
    width:100%;aspect-ratio:16/10;object-fit:cover;
    border-radius:var(--radius-lg);
    border:1px solid var(--line-neon);
    box-shadow:var(--shadow);
  }
  .zz-media::after{
    content:"";position:absolute;inset:0;border-radius:var(--radius-lg);
    background:linear-gradient(180deg,rgba(10,9,24,0) 45%,rgba(10,9,24,.55));
    pointer-events:none;
  }
  .zz-index{
    font-size:13px;color:var(--gold);letter-spacing:.1em;
    font-variant-numeric:tabular-nums;margin-bottom:10px;display:block;
  }
  .zz-body h2,.zz-body h3{font-size:26px;font-weight:700;margin-bottom:14px;}
  .zz-body p{color:var(--text-mid);font-size:16px;}
  .zz-points{margin-top:18px;display:grid;gap:10px;}
  .zz-points li{
    position:relative;padding-left:20px;font-size:15px;color:var(--text-mid);
  }
  .zz-points li::before{
    content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;
    background:var(--neon);box-shadow:0 0 8px rgba(61,232,200,.8);
  }

  /* ---------- spec table ---------- */
  .spec-table{
    border:1px solid var(--line);border-radius:var(--radius-md);
    overflow:hidden;background:rgba(18,16,42,.6);
  }
  .spec-head,.spec-row{
    display:grid;grid-template-columns:1.1fr .8fr 1.2fr 1.2fr;gap:16px;
    padding:18px 24px;
  }
  .spec-head{
    background:rgba(36,30,74,.6);
    font-size:13px;color:var(--text-low);letter-spacing:.04em;
  }
  .spec-row{border-top:1px solid var(--line);font-size:15px;color:var(--text-mid);transition:background var(--ease);}
  .spec-row:hover{background:rgba(61,232,200,.05);}
  .spec-row span:first-child{color:var(--text-hi);font-weight:600;}

  /* ---------- status list ---------- */
  .status-list{
    border:1px solid var(--line);border-radius:var(--radius-md);
    background:linear-gradient(160deg,#1A1636,#221B44);
    overflow:hidden;box-shadow:var(--shadow);
  }
  .status-item{
    display:flex;align-items:center;gap:16px;
    padding:20px 24px;border-bottom:1px solid var(--line);
    transition:background var(--ease);
  }
  .status-item:last-child{border-bottom:none;}
  .status-item:hover{background:rgba(61,232,200,.05);}
  .status-dot{
    width:9px;height:9px;border-radius:50%;flex:0 0 auto;
    background:var(--neon);box-shadow:0 0 10px rgba(61,232,200,.9);
  }
  .status-dot.gold{background:var(--gold);box-shadow:0 0 10px rgba(255,194,75,.9);}
  .status-main{flex:1;min-width:0;}
  .status-main b{display:block;font-size:16px;font-weight:600;color:var(--text-hi);}
  .status-main span{font-size:14px;color:var(--text-mid);}
  .status-tag{
    flex:0 0 auto;font-size:13px;padding:5px 12px;border-radius:999px;
    color:var(--neon);background:rgba(61,232,200,.1);border:1px solid rgba(61,232,200,.3);
    white-space:nowrap;
  }
  .status-tag.gold{color:var(--gold);background:rgba(255,194,75,.1);border-color:rgba(255,194,75,.32);}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:760px;margin:0 auto;}
  .faq-item{
    background:linear-gradient(160deg,#1A1636,#221B44);
    border:1px solid var(--line);border-radius:16px;
    margin-bottom:14px;overflow:hidden;position:relative;
    transition:border-color var(--ease),box-shadow var(--ease);
  }
  .faq-item.open{border-color:rgba(61,232,200,.42);box-shadow:0 0 0 1px rgba(61,232,200,.16);}
  .faq-item.open::before{
    content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--neon);
    box-shadow:0 0 12px rgba(61,232,200,.7);
  }
  .faq-q{
    width:100%;text-align:left;background:none;border:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 22px;font-size:17px;font-weight:500;color:var(--text-hi);
  }
  .faq-icon{
    flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform 240ms ease;
  }
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;background:var(--neon);border-radius:2px;
  }
  .faq-icon::before{left:0;right:0;top:10px;height:2px;}
  .faq-icon::after{top:0;bottom:0;left:10px;width:2px;}
  .faq-item.open .faq-icon{transform:rotate(45deg);}
  .faq-a{
    max-height:0;overflow:hidden;padding:0 22px;
    color:var(--text-mid);font-size:15px;line-height:1.8;
    transition:max-height 240ms ease,padding 240ms ease;
  }
  .faq-item.open .faq-a{max-height:460px;padding:0 22px 20px;}

  /* ---------- CTA band ---------- */
  .cta-band{
    border-radius:28px;padding:44px 48px;
    display:flex;align-items:center;justify-content:space-between;gap:32px;
    background:
      radial-gradient(600px 260px at 0% 0%,rgba(61,232,200,.2),transparent 65%),
      linear-gradient(120deg,#1B1740,#241E4A 60%,#1B2B3C);
    border:1px solid rgba(61,232,200,.24);
    box-shadow:0 0 0 1px rgba(61,232,200,.06),0 20px 50px rgba(6,4,20,.6);
  }
  .cta-band h2{font-size:26px;font-weight:700;margin-bottom:10px;}
  .cta-band p{color:var(--text-mid);font-size:15px;max-width:620px;}

  /* ---------- footer ---------- */
  .site-footer{
    position:relative;background:var(--bg-0);
    margin-top:88px;
  }
  .site-footer::before{
    content:"";position:absolute;top:0;left:0;right:0;height:1px;
    background:linear-gradient(90deg,transparent,var(--neon),var(--pink),transparent);
    opacity:.65;
  }
  .foot-grid{
    display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;
    padding:56px 0 34px;
  }
  .foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .foot-col p{color:var(--text-low);font-size:14px;line-height:1.8;max-width:340px;}
  .foot-col h4{font-size:15px;font-weight:600;color:var(--text-hi);margin:0 0 14px;}
  .foot-col ul li{margin-bottom:10px;}
  .foot-col ul li a{
    color:var(--text-low);font-size:14px;display:inline-block;
  }
  .foot-col ul li a:hover{color:var(--neon);transform:translateX(2px);}
  .foot-bottom{
    border-top:1px solid var(--line);
    padding:18px 0 24px;
    display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:10px;
    font-size:13px;color:var(--text-low);
  }

  /* ---------- responsive ---------- */
  @media (max-width:1023px){
    .nav-links{display:none;}
    .nav-cta{display:none;}
    .nav-toggle{display:flex;}
    .nav-inner{height:60px;}
    .hero-grid{grid-template-columns:1fr;gap:32px;}
    .hero-title{font-size:34px;}
    .hero-sub{font-size:16px;}
    .hero-panel{flex-direction:row;flex-wrap:wrap;}
    .stat-pill{flex:1 1 200px;}
    .section{padding:64px 0;}
    .prep-grid{grid-template-columns:1fr;gap:28px;}
    .zigzag{grid-template-columns:1fr;gap:26px;padding:44px 0;}
    .zigzag.reverse .zz-media{order:0;}
    .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
    .cta-band{flex-direction:column;align-items:flex-start;padding:34px 28px;}
    .cta-band .btn{width:100%;}
  }
  @media (max-width:767px){
    .container{padding:0 16px;}
    .page-hero{padding:40px 0 52px;}
    .hero-title{font-size:30px;}
    .section-head h2{font-size:24px;}
    .zz-body h2,.zz-body h3{font-size:21px;}
    .spec-head{display:none;}
    .spec-row{grid-template-columns:1fr 1fr;gap:10px;padding:18px;}
    .status-item{flex-wrap:wrap;gap:10px;padding:16px 18px;}
    .status-tag{margin-left:25px;}
    .foot-grid{grid-template-columns:1fr;gap:24px;}
    .site-footer{margin-top:56px;}
  }
  @media (max-width:560px){
    .hero-title{font-size:27px;}
    .hero-actions .btn{width:100%;}
    .stat-pill{flex:1 1 100%;}
    .spec-row{grid-template-columns:1fr;gap:6px;}
    .spec-row span{display:flex;gap:10px;}
    .spec-row span::before{
      content:attr(data-label);flex:0 0 70px;font-size:13px;color:var(--text-low);
    }
    .brand-text{font-size:15px;}
    .faq-q{font-size:16px;padding:16px 18px;}
  }

/* roulang page: category3 */
:root{
  --bg-0:#0A0918;
  --bg-1:#12102A;
  --surface:#1A1636;
  --surface-2:#241E4A;
  --neon:#3DE8C8;
  --gold:#FFC24B;
  --pink:#FF5FA2;
  --text-hi:#F2F0FF;
  --text-mid:#B6B0D6;
  --text-low:#7A739E;
  --line:rgba(255,255,255,.08);
  --neon-line:rgba(61,232,200,.16);
  --radius:22px;
  --radius-sm:14px;
  --shadow:0 10px 30px rgba(6,4,20,.55);
  --shadow-hover:0 18px 44px rgba(61,232,200,.14);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-hi);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",-apple-system,"Segoe UI",Roboto,"Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(circle at 12% 18%, rgba(61,232,200,.10), transparent 42%),
    radial-gradient(circle at 88% 8%, rgba(255,95,162,.08), transparent 40%),
    radial-gradient(circle at 70% 82%, rgba(255,194,75,.06), transparent 46%);
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;letter-spacing:0;font-weight:800;line-height:1.25;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;}
input,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--neon);outline-offset:3px;border-radius:8px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,9,24,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,var(--neon),var(--pink) 45%,transparent 85%);
  opacity:.7;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--text-hi);white-space:nowrap;}
.brand-text{letter-spacing:0;}
.logo-mark{
  position:relative;flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  background:radial-gradient(circle,rgba(61,232,200,.55),rgba(61,232,200,0) 72%);
  box-shadow:0 0 18px rgba(61,232,200,.35);
}
.logo-mark::after{
  content:"";position:absolute;left:50%;top:50%;width:15px;height:15px;transform:translate(-50%,-50%);
  background:linear-gradient(140deg,#3DE8C8,#FFC24B);
  clip-path:polygon(50% 0,61% 39%,100% 50%,61% 61%,50% 100%,39% 61%,0 50%,39% 39%);
}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;min-height:44px;
  padding:0 12px;font-size:15px;color:var(--text-mid);
  transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:12px;height:2px;
  background:linear-gradient(90deg,var(--neon),rgba(61,232,200,0));
  transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav-link:hover{color:var(--text-hi);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--neon);text-shadow:0 0 12px rgba(61,232,200,.45);}
.nav-link.active::after{transform:scaleX(1);box-shadow:0 0 10px rgba(61,232,200,.7);}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:40px;padding:0 18px;border-radius:999px;
  background:var(--neon);color:#06121A;font-weight:700;font-size:15px;
  box-shadow:0 0 0 1px rgba(61,232,200,.4),0 8px 24px rgba(61,232,200,.22);
  transition:transform .2s ease,filter .2s ease,box-shadow .2s ease;
}
.nav-cta:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(61,232,200,.55),0 14px 32px rgba(61,232,200,.3);}
.nav-cta:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(61,232,200,.4),0 6px 16px rgba(61,232,200,.2);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  align-items:center;justify-content:center;background:rgba(255,255,255,.03);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-hi);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-hi);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:700;letter-spacing:.2px;
  transition:transform .2s ease,filter .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
}
.btn-primary{
  background:var(--neon);color:#06121A;
  box-shadow:0 0 0 1px rgba(61,232,200,.45),0 10px 28px rgba(61,232,200,.22);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(61,232,200,.6),0 18px 40px rgba(61,232,200,.3);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(61,232,200,.45),0 6px 16px rgba(61,232,200,.18);}
.btn-ghost{
  background:transparent;color:var(--neon);border:1px solid rgba(61,232,200,.55);
}
.btn-ghost:hover{background:rgba(61,232,200,.12);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);background:rgba(61,232,200,.08);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.hero-bg{
  position:absolute;inset:0;
  background-image:
    linear-gradient(115deg,rgba(10,9,24,.95) 0%,rgba(18,16,42,.86) 48%,rgba(10,9,24,.94) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.hero-glow-a,.hero-glow-b{position:absolute;border-radius:50%;filter:blur(70px);pointer-events:none;}
.hero-glow-a{width:420px;height:420px;left:-120px;top:-140px;background:rgba(61,232,200,.18);}
.hero-glow-b{width:460px;height:460px;right:-140px;bottom:-200px;background:rgba(255,95,162,.14);}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.45fr .85fr;gap:44px;align-items:center;
  padding:62px 0;min-height:420px;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-low);margin-bottom:18px;flex-wrap:wrap;}
.crumb a{color:var(--text-low);transition:color .18s ease;}
.crumb a:hover{color:var(--neon);}
.crumb span.sep{opacity:.6;}
.hero h1{font-size:clamp(28px,4vw,48px);line-height:1.15;margin-bottom:18px;}
.grad-text{
  background:linear-gradient(100deg,#3DE8C8 0%,#FFC24B 92%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;color:var(--text-mid);max-width:560px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-stats{display:flex;flex-direction:column;gap:14px;}
.stat-pill{
  display:flex;align-items:baseline;gap:10px;
  padding:14px 18px;border-radius:18px;
  background:linear-gradient(160deg,rgba(26,22,54,.92),rgba(36,30,74,.82));
  border:1px solid rgba(255,194,75,.34);
  box-shadow:0 0 22px rgba(255,194,75,.10);
}
.stat-pill b{font-size:22px;font-weight:800;color:var(--gold);line-height:1;}
.stat-pill small{font-size:13px;color:var(--text-mid);line-height:1.5;}

/* ============ 通用板块 ============ */
.section{padding:72px 0;position:relative;z-index:1;}
.section-head{margin-bottom:34px;}
.section-title{font-size:clamp(22px,2.6vw,32px);margin-bottom:12px;}
.section-desc{color:var(--text-mid);font-size:16px;max-width:760px;}

/* ============ 两栏文档布局 ============ */
.doc-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:32px;align-items:start;}
.doc-main{display:flex;flex-direction:column;gap:26px;min-width:0;}
.doc-side{min-width:0;}
.panel{
  background:linear-gradient(160deg,#1A1636,#221B44);
  border:1px solid var(--neon-line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:28px;
}
.panel h2{font-size:clamp(20px,2.1vw,25px);margin-bottom:14px;}
.panel h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.panel .lead{color:var(--text-mid);}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 6px;}
.chip{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  font-size:13px;color:var(--text-mid);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.chip:hover{color:var(--neon);border-color:rgba(61,232,200,.45);background:rgba(61,232,200,.08);}

.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:22px;}
.mini-card{
  background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:16px;padding:18px;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.mini-card:hover{transform:translateY(-4px);border-color:rgba(61,232,200,.4);box-shadow:0 12px 28px rgba(61,232,200,.10);}
.mini-card b{display:block;font-size:15px;color:var(--text-hi);margin-bottom:6px;}
.mini-card p{font-size:14px;color:var(--text-mid);margin:0;line-height:1.7;}

/* 平台卡 */
.plat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:22px;}
.plat-card{
  border-radius:20px;overflow:hidden;
  background:linear-gradient(160deg,#1A1636,#221B44);
  border:1px solid var(--neon-line);
  box-shadow:var(--shadow);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.plat-card:hover{transform:translateY(-6px);border-color:rgba(61,232,200,.55);box-shadow:0 0 0 1px rgba(61,232,200,.35),var(--shadow-hover);}
.plat-cover{position:relative;aspect-ratio:16/10;overflow:hidden;}
.plat-cover img{width:100%;height:100%;object-fit:cover;}
.plat-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,9,24,.05) 40%,rgba(10,9,24,.88) 100%);}
.plat-badge{
  position:absolute;left:14px;top:14px;z-index:2;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700;color:#1A1400;
  background:var(--gold);box-shadow:0 6px 18px rgba(255,194,75,.28);
}
.plat-body{padding:18px 20px 22px;}
.plat-body h3{font-size:17px;margin-bottom:8px;}
.plat-body p{font-size:14px;color:var(--text-mid);margin-bottom:12px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  font-size:12px;padding:4px 10px;border-radius:8px;
  color:var(--neon);background:rgba(61,232,200,.10);border:1px solid rgba(61,232,200,.28);
}

/* 步骤 */
.step-list{margin-top:22px;display:flex;flex-direction:column;gap:16px;}
.step-item{
  display:grid;grid-template-columns:52px 1fr;gap:16px;align-items:start;
  padding:18px 20px;border-radius:18px;
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.step-item:hover{border-color:rgba(61,232,200,.4);background:rgba(61,232,200,.05);transform:translateX(4px);}
.step-num{
  width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:16px;color:#06121A;background:linear-gradient(140deg,#3DE8C8,#7CF3DD);
  box-shadow:0 8px 20px rgba(61,232,200,.22);
}
.step-item h3{font-size:16px;margin-bottom:6px;}
.step-item p{margin:0;font-size:14px;color:var(--text-mid);}

/* 列表 */
.tick-list{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.tick-list li{display:flex;gap:12px;font-size:15px;color:var(--text-mid);align-items:flex-start;}
.tick-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;border-radius:50%;
  background:var(--neon);box-shadow:0 0 10px rgba(61,232,200,.7);
}

/* 参数表 */
.spec-table{width:100%;border-collapse:separate;border-spacing:0;margin-top:20px;font-size:14px;overflow:hidden;border-radius:16px;border:1px solid var(--line);}
.spec-table th,.spec-table td{padding:14px 16px;text-align:left;vertical-align:top;}
.spec-table thead th{background:rgba(61,232,200,.08);color:var(--neon);font-size:13px;font-weight:700;border-bottom:1px solid var(--line);}
.spec-table tbody tr+tr td{border-top:1px solid var(--line);}
.spec-table td:first-child{color:var(--text-hi);font-weight:600;width:32%;}
.spec-table td:last-child{color:var(--text-mid);}

/* FAQ */
.faq-list{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
.faq-item{
  border-radius:16px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.faq-item.open{
  border-color:rgba(61,232,200,.5);
  background:rgba(61,232,200,.05);
  box-shadow:0 0 0 1px rgba(61,232,200,.22);
  border-left:3px solid var(--neon);
}
.faq-q{
  width:100%;text-align:left;display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:16px 20px;font-size:16px;font-weight:600;color:var(--text-hi);
}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform .24s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--neon);border-radius:2px;
}
.faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%);}
.faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%);}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.faq-a p{padding:0 20px 18px;margin:0;font-size:14px;color:var(--text-mid);}

/* 侧栏目录 */
.toc-card{
  position:sticky;top:96px;
  background:linear-gradient(160deg,#181436,#1F1A42);
  border:1px solid var(--neon-line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:22px;
}
.toc-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.toc-title{font-size:15px;font-weight:800;color:var(--text-hi);}
.toc-toggle{
  display:none;font-size:13px;color:var(--neon);border:1px solid rgba(61,232,200,.4);
  border-radius:999px;padding:6px 12px;min-height:36px;
}
.toc-body{max-height:none;overflow:visible;transition:max-height .3s ease;}
.toc-list{margin-top:14px;display:flex;flex-direction:column;gap:4px;}
.toc-list a{
  display:block;padding:9px 12px;border-radius:10px;font-size:14px;color:var(--text-mid);
  border-left:2px solid transparent;transition:color .18s ease,background .18s ease,border-color .18s ease,transform .18s ease;
}
.toc-list a:hover{color:var(--neon);background:rgba(61,232,200,.08);border-left-color:var(--neon);transform:translateX(2px);}
.side-note{
  margin-top:20px;padding-top:18px;border-top:1px solid var(--line);
}
.side-note h4{font-size:14px;color:var(--gold);margin-bottom:10px;font-weight:700;}
.side-note ul{display:flex;flex-direction:column;gap:8px;}
.side-note li{font-size:13px;color:var(--text-mid);display:flex;gap:8px;align-items:flex-start;}
.side-note li::before{content:"·";color:var(--neon);font-weight:800;line-height:1.4;}

/* 保障条 */
.assure-bar{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.assure-item{padding:26px 22px;display:flex;gap:14px;align-items:flex-start;position:relative;}
.assure-item+.assure-item::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:1px;background:var(--line);
}
.assure-ico{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;
  border:1px solid rgba(61,232,200,.5);display:flex;align-items:center;justify-content:center;
  color:var(--neon);font-size:15px;font-weight:800;
}
.assure-item b{display:block;font-size:15px;color:var(--text-hi);margin-bottom:4px;}
.assure-item span{font-size:13px;color:var(--text-low);line-height:1.6;}

/* CTA 带 */
.cta-band{
  border-radius:28px;padding:38px 40px;
  background:linear-gradient(115deg,rgba(26,22,54,.96),rgba(61,232,200,.14));
  border:1px solid rgba(61,232,200,.28);
  box-shadow:0 20px 50px rgba(6,4,20,.6);
  display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band h2{font-size:clamp(20px,2.2vw,28px);margin-bottom:8px;}
.cta-band p{color:var(--text-mid);margin:0;font-size:15px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

/* 页脚 */
.site-footer{
  background:var(--bg-0);
  border-top:1px solid var(--line);
  position:relative;
  margin-top:20px;
  padding-top:56px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,var(--neon) 30%,var(--pink) 70%,transparent);
  opacity:.65;
}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-col p{font-size:13px;color:var(--text-low);line-height:1.8;}
.foot-col h4{font-size:15px;color:var(--text-hi);margin-bottom:14px;font-weight:700;}
.foot-col ul{display:flex;flex-direction:column;gap:8px;}
.foot-col ul a{font-size:13px;color:var(--text-low);display:inline-block;transition:color .18s ease,transform .18s ease;}
.foot-col ul a:hover{color:var(--neon);transform:translateX(2px);}
.foot-bottom{
  display:flex;justify-content:center;align-items:center;gap:8px;flex-wrap:wrap;
  margin-top:40px;padding:20px 0 26px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-low);text-align:center;
}

/* 响应式 */
@media (max-width:1023px){
  .nav-links{
    position:fixed;inset:68px 0 0 0;flex-direction:column;align-items:stretch;gap:0;
    background:rgba(8,7,20,.98);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    padding:20px 20px 40px;transform:translateX(100%);transition:transform .28s ease;
    overflow-y:auto;z-index:75;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-link{padding:14px 12px;font-size:16px;border-left:3px solid transparent;}
  .nav-link::after{display:none;}
  .nav-link.active{border-left-color:var(--neon);background:rgba(61,232,200,.06);}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .nav-drawer-cta{display:inline-flex;margin-top:18px;}
  .hero-inner{grid-template-columns:1fr;gap:30px;padding:48px 0;}
  .doc-layout{grid-template-columns:1fr;}
  .doc-side{order:-1;}
  .toc-card{position:static;padding:18px;}
  .toc-toggle{display:inline-flex;align-items:center;}
  .toc-body{max-height:0;overflow:hidden;}
  .toc-card.toc-open .toc-body{max-height:620px;}
  .assure-grid{grid-template-columns:repeat(2,1fr);}
  .assure-item:nth-child(3)::before{display:none;}
  .assure-item:nth-child(odd)::before{display:none;}
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 28px;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  body{font-size:16px;}
  .section{padding:48px 0;}
  .panel{padding:20px;border-radius:18px;}
  .plat-grid{grid-template-columns:1fr;}
  .mini-grid{grid-template-columns:1fr;}
  .plat-card{border-radius:18px;}
  .step-item{grid-template-columns:44px 1fr;padding:16px;}
  .spec-table td:first-child{width:38%;}
  .assure-grid{grid-template-columns:1fr;}
  .assure-item+.assure-item::before{display:none;}
  .assure-item{border-top:1px solid var(--line);}
  .assure-item:first-child{border-top:none;}
  .foot-grid{grid-template-columns:1fr;}
  .cta-band{border-radius:22px;padding:24px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .hero-actions .btn{width:100%;}
  .stat-pill{padding:12px 16px;}
}
@media (min-width:1024px){
  .nav-drawer-cta{display:none;}
}

/* roulang page: category4 */
:root{
  --bg-0:#0A0918;
  --bg-1:#12102A;
  --surface:#1A1636;
  --surface-2:#241E4A;
  --neon:#3DE8C8;
  --gold:#FFC24B;
  --pink:#FF5FA2;
  --text-hi:#F2F0FF;
  --text-mid:#B6B0D6;
  --text-low:#7A739E;
  --line:rgba(255,255,255,.08);
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:12px;
  --shadow-card:0 10px 30px rgba(6,4,20,.55);
  --shadow-hover:0 18px 44px rgba(61,232,200,.14);
  --ease:200ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-mid);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--text-hi);letter-spacing:0;line-height:1.25;font-weight:800;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px;border-radius:8px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.grad{background:linear-gradient(96deg,var(--neon) 10%,var(--gold) 92%);-webkit-background-clip:text;background-clip:text;color:transparent;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,9,24,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,var(--neon),var(--pink) 45%,transparent 85%);
  opacity:.7;pointer-events:none;
}
.nav-inner{display:flex;align-items:center;gap:20px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.logo-mark{
  position:relative;width:26px;height:26px;flex:none;border-radius:9px;
  background:radial-gradient(circle at 30% 30%,#5cf0d6,#1b3f52 62%,#0d2030);
  box-shadow:0 0 0 1px rgba(61,232,200,.45),0 0 18px rgba(61,232,200,.32);
}
.logo-mark::after{
  content:"";position:absolute;inset:8px;border-radius:2px;
  background:var(--gold);transform:rotate(45deg);opacity:.92;
}
.brand-text{font-size:16px;font-weight:700;color:var(--text-hi);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:2px;flex:1;justify-content:center;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;min-height:44px;padding:0 12px;
  font-size:15px;color:var(--text-mid);transition:color 180ms ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:8px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--neon),var(--pink));
  opacity:0;transform:scaleX(.35);transition:opacity 180ms ease,transform 180ms ease;
}
.nav-link:hover{color:var(--text-hi);}
.nav-link:hover::after{opacity:.45;transform:scaleX(1);}
.nav-link.active{color:var(--neon);text-shadow:0 0 12px rgba(61,232,200,.45);}
.nav-link.active::after{opacity:1;transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:12px;flex:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(26,22,54,.7);color:var(--text-hi);cursor:pointer;transition:all var(--ease);
}
.nav-toggle:hover{color:var(--neon);border-color:rgba(61,232,200,.45);}
.mobile-drawer{
  position:fixed;left:0;right:0;top:56px;bottom:0;z-index:55;
  background:rgba(10,9,24,.98);
  padding:20px 16px 32px;
  display:flex;flex-direction:column;gap:4px;
  overflow-y:auto;
  opacity:0;transform:translateY(-10px);pointer-events:none;
  transition:opacity 220ms ease,transform 220ms ease;
  border-top:1px solid var(--line);
}
.mobile-drawer.open{opacity:1;transform:translateY(0);pointer-events:auto;}
.mobile-drawer a{
  display:flex;align-items:center;min-height:50px;padding:0 14px;border-radius:12px;
  color:var(--text-mid);font-size:16px;border-left:3px solid transparent;
}
.mobile-drawer a:hover{background:rgba(36,30,74,.7);color:var(--text-hi);}
.mobile-drawer a.active{
  color:var(--neon);border-left-color:var(--neon);background:rgba(61,232,200,.08);
  box-shadow:inset 0 0 20px rgba(61,232,200,.08);
}
.mobile-drawer .btn{margin-top:16px;width:100%;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),filter var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--neon);color:#07161A;
  box-shadow:0 0 0 1px rgba(61,232,200,.4),0 10px 24px rgba(61,232,200,.22);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(61,232,200,.6),0 16px 34px rgba(61,232,200,.3);}
.btn-primary:active{transform:translateY(0);filter:brightness(.98);box-shadow:0 0 0 1px rgba(61,232,200,.35),0 6px 14px rgba(61,232,200,.18);}
.btn-ghost{background:transparent;border-color:rgba(61,232,200,.55);color:var(--neon);}
.btn-ghost:hover{background:rgba(61,232,200,.12);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);background:rgba(61,232,200,.18);}

/* ---------- 页头横幅 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:72px 0 64px;
  background-image:linear-gradient(118deg,rgba(10,9,24,.95) 8%,rgba(18,16,42,.84) 52%,rgba(10,9,24,.96) 100%),url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;width:520px;height:520px;left:-180px;top:-220px;border-radius:50%;
  background:radial-gradient(circle,rgba(61,232,200,.20),transparent 68%);pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;width:460px;height:460px;right:-160px;bottom:-240px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,95,162,.16),transparent 68%);pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-low);margin-bottom:22px;flex-wrap:wrap;}
.breadcrumb a{color:var(--text-low);transition:color var(--ease);}
.breadcrumb a:hover{color:var(--neon);}
.breadcrumb span.sep{opacity:.5;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  min-height:32px;padding:0 14px;border-radius:999px;margin-bottom:18px;
  font-size:13px;font-weight:600;color:var(--neon);
  background:rgba(61,232,200,.09);border:1px solid rgba(61,232,200,.35);
}
.eyebrow i{font-size:12px;}
.page-title{
  font-size:46px;line-height:1.16;font-weight:800;max-width:900px;
}
.page-lead{
  margin-top:20px;max-width:760px;font-size:17px;color:var(--text-mid);line-height:1.85;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.badge{
  display:flex;flex-direction:column;gap:2px;min-width:158px;
  padding:13px 20px;border-radius:16px;
  background:linear-gradient(160deg,rgba(36,30,74,.92),rgba(26,22,54,.72));
  border:1px solid rgba(255,194,75,.34);
  box-shadow:0 0 18px rgba(255,194,75,.10);
}
.badge strong{color:var(--gold);font-size:21px;font-weight:800;line-height:1.2;}
.badge span{font-size:13px;color:var(--text-low);line-height:1.5;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;min-height:38px;padding:0 16px;border-radius:999px;
  font-size:14px;color:var(--text-mid);
  background:rgba(26,22,54,.82);border:1px solid var(--line);
  transition:all var(--ease);
}
.chip i{color:var(--neon);font-size:12px;}
.chip:hover{color:var(--neon);border-color:rgba(61,232,200,.45);background:rgba(61,232,200,.09);transform:translateY(-2px);}

/* ---------- 板块 ---------- */
.section{padding:88px 0;}
.section--tint{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap;}
.section-title{font-size:32px;line-height:1.25;}
.section-sub{margin-top:12px;font-size:16px;color:var(--text-low);max-width:720px;}
.section-more{font-size:14px;color:var(--neon);display:inline-flex;align-items:center;gap:6px;transition:gap var(--ease);}
.section-more:hover{gap:12px;}

/* ---------- 大图卡片纵向序列 ---------- */
.big-list{display:flex;flex-direction:column;gap:32px;}
.big-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius-lg);
  background:linear-gradient(160deg,#1A1636,#221B44);
  border:1px solid rgba(61,232,200,.16);
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.big-card:hover{
  transform:translateY(-6px);
  border-color:rgba(61,232,200,.5);
  box-shadow:0 0 0 1px rgba(61,232,200,.35),var(--shadow-hover);
}
.big-card__cover{position:relative;aspect-ratio:16/6;overflow:hidden;background:#0d0b1f;}
.big-card__cover img{width:100%;height:100%;object-fit:cover;opacity:.88;transition:transform 420ms ease,opacity var(--ease);}
.big-card:hover .big-card__cover img{transform:scale(1.03);opacity:.96;}
.big-card__cover::after{
  content:"";position:absolute;inset:auto 0 0 0;height:62%;
  background:linear-gradient(180deg,transparent,rgba(10,9,24,.94));
}
.big-card__badge{
  position:absolute;z-index:3;top:16px;left:18px;
  display:inline-flex;align-items:center;min-height:30px;padding:0 13px;border-radius:999px;
  font-size:13px;font-weight:600;color:var(--gold);
  background:rgba(255,194,75,.14);border:1px solid rgba(255,194,75,.5);
  backdrop-filter:blur(6px);
}
.big-card__body{padding:30px 34px 34px;}
.big-card__head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;}
.big-card__title{font-size:21px;line-height:1.4;}
.tag{
  display:inline-flex;align-items:center;min-height:30px;padding:0 12px;border-radius:999px;
  font-size:13px;color:var(--neon);
  background:rgba(61,232,200,.08);border:1px solid rgba(61,232,200,.28);white-space:nowrap;
}
.big-card__text{margin-top:16px;font-size:16px;color:var(--text-mid);max-width:900px;}
.fix-list{
  margin-top:20px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 26px;
}
.fix-list li{position:relative;padding-left:20px;font-size:15px;color:var(--text-mid);line-height:1.75;}
.fix-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;
  background:var(--neon);box-shadow:0 0 10px rgba(61,232,200,.65);
}
.card-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.step{
  position:relative;padding:26px 24px;border-radius:var(--radius-md);
  background:linear-gradient(160deg,rgba(26,22,54,.95),rgba(18,16,42,.9));
  border:1px solid var(--line);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.step:hover{transform:translateY(-6px);border-color:rgba(61,232,200,.42);box-shadow:var(--shadow-hover);}
.step__num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;margin-bottom:16px;
  font-size:16px;font-weight:800;color:#1A1636;background:var(--gold);
  box-shadow:0 0 16px rgba(255,194,75,.28);
}
.step h3{font-size:18px;line-height:1.4;}
.step p{margin-top:10px;font-size:15px;color:var(--text-low);}

/* ---------- 保障条 ---------- */
.guard-bar{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:34px 0;}
.guard-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));}
.guard-item{padding:0 26px;border-left:1px solid var(--line);}
.guard-item:first-child{border-left:0;padding-left:0;}
.guard-item i{color:var(--neon);font-size:18px;margin-bottom:10px;display:block;}
.guard-item strong{display:block;color:var(--text-hi);font-size:16px;font-weight:700;}
.guard-item span{display:block;margin-top:6px;font-size:14px;color:var(--text-low);line-height:1.7;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;max-width:1050px;margin:0 auto;}
.faq-item{
  border-radius:16px;overflow:hidden;
  background:linear-gradient(160deg,rgba(26,22,54,.95),rgba(20,17,44,.92));
  border:1px solid var(--line);
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.faq-item.open{border-color:rgba(61,232,200,.42);box-shadow:0 0 0 1px rgba(61,232,200,.18),0 14px 34px rgba(6,4,20,.5);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;min-height:64px;text-align:left;
  background:transparent;border:0;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--text-hi);line-height:1.5;
}
.faq-item.open .faq-q{color:var(--neon);}
.faq-q i{color:var(--neon);font-size:15px;transition:transform 240ms ease;flex:none;}
.faq-item.open .faq-q i{transform:rotate(135deg);}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows 240ms ease;}
.faq-item.open .faq-a{grid-template-rows:1fr;}
.faq-a__inner{overflow:hidden;}
.faq-a p{
  padding:0 22px 22px;font-size:15px;color:var(--text-mid);line-height:1.85;
  border-left:3px solid transparent;
}
.faq-item.open .faq-a p{border-left-color:var(--neon);padding-left:19px;}

/* ---------- 底部行动条 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;
  padding:42px 46px;border-radius:28px;
  background-image:linear-gradient(112deg,rgba(26,22,54,.97) 5%,rgba(17,48,54,.9) 100%),url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  border:1px solid rgba(61,232,200,.28);
  box-shadow:0 18px 48px rgba(6,4,20,.6);
}
.cta-band::after{
  content:"";position:absolute;width:340px;height:340px;right:-120px;top:-160px;border-radius:50%;
  background:radial-gradient(circle,rgba(61,232,200,.22),transparent 66%);pointer-events:none;
}
.cta-band__text{position:relative;z-index:2;max-width:640px;}
.cta-band h2{font-size:28px;line-height:1.3;}
.cta-band p{margin-top:12px;font-size:16px;color:var(--text-mid);}
.cta-band__actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-0);
  border-top:1px solid var(--line);
  position:relative;
  padding:64px 0 26px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,var(--neon) 28%,var(--pink) 62%,transparent);
  opacity:.65;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.foot-col h4{font-size:15px;font-weight:700;color:var(--text-hi);margin-bottom:16px;}
.foot-col p{font-size:14px;color:var(--text-low);line-height:1.85;max-width:340px;}
.foot-col ul li{margin-bottom:10px;}
.foot-col ul a{
  font-size:14px;color:var(--text-low);display:inline-block;
  transition:color var(--ease),transform var(--ease);
}
.foot-col ul a:hover{color:var(--neon);transform:translateX(2px);}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap;
  font-size:13px;color:var(--text-low);text-align:center;
}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .nav-links{gap:0;}
  .nav-link{padding:0 9px;font-size:14px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-cta{display:none;}
  .nav-inner{height:56px;}
  .section{padding:64px 0;}
  .page-hero{padding:56px 0 52px;}
  .page-title{font-size:34px;}
  .section-title{font-size:26px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .guard-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 0;}
  .guard-item:nth-child(3){border-left:0;padding-left:0;}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .big-card__cover{aspect-ratio:16/7;}
  .big-card__body{padding:26px 24px 30px;}
}
@media (max-width:767px){
  .page-title{font-size:30px;}
  .hero-badges{gap:10px;}
  .badge{min-width:140px;flex:1;}
  .fix-list{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 24px;border-radius:22px;}
  .cta-band h2{font-size:23px;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{flex:1;}
  .big-card__cover{aspect-ratio:16/9;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:30px;}
  .page-title{font-size:28px;}
  .page-lead{font-size:15.5px;}
  .section-title{font-size:22px;}
  .badge{padding:12px 16px;}
  .badge strong{font-size:18px;}
  .big-card{border-radius:18px;}
  .big-card__body{padding:22px 18px 26px;}
  .big-card__title{font-size:19px;}
  .big-card__badge{top:12px;left:12px;}
  .card-actions .btn{flex:1;}
  .steps{grid-template-columns:1fr;}
  .guard-grid{grid-template-columns:1fr;gap:22px;}
  .guard-item{padding:0;border-left:0;border-top:1px solid var(--line);padding-top:22px;}
  .guard-item:first-child{border-top:0;padding-top:0;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .faq-q{font-size:16px;padding:18px 18px;min-height:60px;}
  .faq-a p{padding:0 18px 18px;}
  .btn{width:100%;}
  .brand-text{font-size:14px;}
}