/* roulang page: index */
:root{
  --bg-0:#070B14;
  --bg-1:#0C1524;
  --bg-2:#111C2F;
  --brand:#1E6BFF;
  --glow:#26E0C8;
  --warm:#FF7A59;
  --text:#E9EFFA;
  --text-2:#A8B4C8;
  --text-3:#6E7C93;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --glass:rgba(255,255,255,.045);
  --r-card:18px;
  --r-img:14px;
  --r-input:12px;
  --shadow-card:0 18px 44px rgba(3,8,20,.55);
  --shadow-glow:0 0 0 1px rgba(38,224,200,.5),0 10px 30px rgba(38,224,200,.28);
  --container:1240px;
  --gap:24px;
}
*,*::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);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  overflow-x:hidden;
  padding-bottom:88px;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--glow);text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:#6ff2e0;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--glow);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(38,224,200,.32);color:#fff;}

/* ---------- 背景装饰 ---------- */
.bg-deco{position:fixed;inset:0;pointer-events:none;z-index:0;}
.bg-deco::before{
  content:"";position:absolute;top:-240px;left:-160px;width:720px;height:720px;
  background:radial-gradient(circle,rgba(30,107,255,.22),transparent 66%);
}
.bg-deco::after{
  content:"";position:absolute;bottom:-260px;right:-180px;width:760px;height:760px;
  background:radial-gradient(circle,rgba(38,224,200,.16),transparent 68%);
}
.bg-grid{
  position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.05;
  background-image:linear-gradient(rgba(255,255,255,.55) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.55) 1px,transparent 1px);
  background-size:64px 64px;
}
.page{position:relative;z-index:2;}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;color:var(--glow);
  text-transform:uppercase;font-weight:600;margin-bottom:14px;
}
.eyebrow i{font-size:12px;}
h2.section-title{font-size:clamp(24px,3.4vw,38px);}
.section-sub{margin-top:14px;color:var(--text-2);font-size:16px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 26px;border-radius:999px;font-size:15px;font-weight:600;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,opacity .22s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(180deg,#2f79ff,#1a5fe6);
  color:#fff;box-shadow:var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(38,224,200,.7),0 16px 36px rgba(38,224,200,.36);color:#fff;}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(38,224,200,.5),0 6px 16px rgba(38,224,200,.2);}
.btn-ghost{
  background:rgba(255,255,255,.03);color:var(--text);
  border:1px solid rgba(38,224,200,.55);
}
.btn-ghost:hover{transform:translateY(-2px);background:rgba(38,224,200,.1);color:#fff;box-shadow:0 10px 26px rgba(38,224,200,.2);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;filter:saturate(.4);box-shadow:none;cursor:not-allowed;}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(38,224,200,.14);color:var(--glow);border:1px solid rgba(38,224,200,.28);
}
.badge.warm{background:rgba(255,122,89,.14);color:#ffa189;border-color:rgba(255,122,89,.3);}
.badge.blue{background:rgba(30,107,255,.16);color:#8fb6ff;border-color:rgba(30,107,255,.34);}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,20,.82);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line-soft);
}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px 0;}
.logo{display:inline-flex;align-items:center;gap:12px;color:var(--text);font-weight:700;}
.logo:hover{color:var(--text);}
.logo-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(150deg,#1E6BFF,#26E0C8);
  color:#04121b;font-weight:800;font-size:15px;letter-spacing:.5px;
  box-shadow:0 0 0 1px rgba(38,224,200,.4),0 8px 22px rgba(30,107,255,.35);
}
.logo-text{font-size:20px;letter-spacing:.6px;}
.logo-text span{color:var(--glow);}
.brand-actions{display:flex;align-items:center;gap:14px;}
.link-consult{
  font-size:14px;color:var(--text-2);display:inline-flex;align-items:center;gap:8px;
}
.link-consult:hover{color:var(--glow);}
.channel-row{
  display:flex;align-items:center;gap:8px;padding:0 0 12px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.channel-row::-webkit-scrollbar{display:none;}
.channel{
  position:relative;padding:9px 16px;border-radius:999px;font-size:15px;
  color:var(--text-3);white-space:nowrap;font-weight:500;
  transition:color .22s ease,background .22s ease;
}
.channel::after{
  content:"";position:absolute;left:16px;right:16px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--glow),rgba(38,224,200,0));
  transform:scaleX(0);transform-origin:left;transition:transform .26s ease;
  box-shadow:0 0 12px rgba(38,224,200,.8);
}
.channel:hover{color:var(--text);background:rgba(255,255,255,.04);}
.channel:hover::after{transform:scaleX(1);}
.channel.active{color:#fff;background:rgba(38,224,200,.08);}
.channel.active::after{transform:scaleX(1);}

/* ---------- 玻璃面板 ---------- */
.glass{
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  position:relative;
  overflow:hidden;
}
.glass::before{
  content:"";position:absolute;top:0;left:14px;right:14px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.38),transparent);
}

/* ---------- Hero ---------- */
.hero{position:relative;padding:78px 0 88px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;top:-180px;right:8%;width:640px;height:640px;
  background:radial-gradient(circle,rgba(38,224,200,.16),transparent 65%);pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;position:relative;}
.hero-title{font-size:clamp(30px,5.2vw,54px);font-weight:700;letter-spacing:.4px;}
.hero-title em{font-style:normal;color:var(--glow);}
.hero-lead{margin-top:20px;font-size:17px;color:var(--text-2);max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.hero-tag{
  font-size:13px;color:var(--text-2);padding:6px 14px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  filter:saturate(1.05);
}
.hero-visual::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-card);pointer-events:none;
  background:linear-gradient(180deg,rgba(7,11,20,.06),rgba(7,11,20,.72));
}
.hero-float{
  position:absolute;left:-26px;bottom:26px;z-index:3;padding:18px 22px;min-width:220px;
}
.hero-float .num{
  font-size:30px;font-weight:700;color:var(--glow);font-variant-numeric:tabular-nums;line-height:1.2;
}
.hero-float .cap{font-size:13px;color:var(--text-2);margin-top:6px;}

/* ---------- 卖点：1 大 + 2 横条 ---------- */
.usp-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:var(--gap);}
.usp-main{padding:0;display:flex;flex-direction:column;}
.usp-main img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;border-bottom:1px solid var(--line-soft);}
.usp-main-body{padding:28px;}
.usp-main-body h3{font-size:22px;margin-bottom:12px;}
.usp-main-body p{color:var(--text-2);font-size:15px;}
.usp-list{display:grid;gap:var(--gap);align-content:start;}
.usp-bar{display:flex;gap:18px;padding:22px 24px;align-items:flex-start;}
.usp-bar .ico{
  flex:0 0 46px;width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:rgba(38,224,200,.12);color:var(--glow);font-size:18px;border:1px solid rgba(38,224,200,.24);
}
.usp-bar h4{font-size:17px;margin-bottom:6px;}
.usp-bar p{font-size:14px;color:var(--text-2);}

/* ---------- 演示时间轴 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);position:relative;}
.steps::before{
  content:"";position:absolute;top:19px;left:6%;right:6%;height:2px;
  background:linear-gradient(90deg,rgba(38,224,200,.05),rgba(38,224,200,.55),rgba(38,224,200,.05));
  z-index:0;
}
.step{position:relative;z-index:1;padding-top:56px;}
.step-dot{
  position:absolute;top:8px;left:0;width:22px;height:22px;border-radius:50%;
  background:var(--bg-1);border:2px solid var(--glow);
  box-shadow:0 0 0 6px rgba(38,224,200,.12),0 0 18px rgba(38,224,200,.55);
}
.step-num{
  font-size:13px;color:var(--glow);font-variant-numeric:tabular-nums;font-weight:600;letter-spacing:.12em;
}
.step h4{font-size:18px;margin:10px 0 8px;}
.step p{font-size:14px;color:var(--text-2);}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);
  padding:26px 28px;margin-bottom:52px;
}
.stat .num{font-size:28px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;}
.stat .num small{font-size:14px;color:var(--glow);margin-left:4px;font-weight:600;}
.stat .cap{font-size:13px;color:var(--text-3);margin-top:4px;}

/* ---------- 证据交错 ---------- */
.proof-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:64px;}
.proof-row:last-child{margin-bottom:0;}
.proof-row.reverse .proof-media{order:2;}
.proof-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);border:1px solid var(--line);}
.proof-text h3{font-size:24px;margin-bottom:14px;}
.proof-text p{color:var(--text-2);font-size:15px;}
.proof-points{margin-top:20px;display:grid;gap:12px;}
.proof-points li{display:flex;gap:12px;font-size:15px;color:var(--text-2);align-items:flex-start;}
.proof-points i{color:var(--glow);margin-top:6px;font-size:13px;}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:.92fr 1.16fr .92fr;gap:var(--gap);align-items:stretch;}
.price-card{padding:32px 28px;display:flex;flex-direction:column;}
.price-card.featured{
  border-color:rgba(38,224,200,.55);
  box-shadow:0 0 0 1px rgba(38,224,200,.35),0 22px 54px rgba(38,224,200,.2);
  background:linear-gradient(180deg,rgba(38,224,200,.08),rgba(255,255,255,.03));
}
.price-flag{
  position:absolute;top:0;right:24px;transform:translateY(-50%);
  background:var(--warm);color:#1a0a05;font-size:12px;font-weight:700;
  padding:4px 14px;border-radius:999px;
}
.price-name{font-size:19px;margin-bottom:8px;}
.price-note{font-size:13px;color:var(--text-3);}
.price-amount{margin:22px 0 6px;font-size:26px;font-weight:700;color:#fff;}
.price-amount small{font-size:14px;color:var(--text-3);font-weight:500;margin-left:6px;}
.price-list{display:grid;gap:12px;margin:22px 0 28px;}
.price-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);}
.price-list i{color:var(--glow);margin-top:6px;font-size:12px;}
.price-card .btn{margin-top:auto;width:100%;}

/* ---------- 最新信息 ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap);}
.news-card{display:flex;flex-direction:column;overflow:hidden;transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;}
.news-card:hover{transform:translateY(-4px);border-color:rgba(38,224,200,.4);box-shadow:0 22px 50px rgba(3,8,20,.7);}
.news-cover{display:block;position:relative;overflow:hidden;}
.news-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .5s ease;}
.news-card:hover .news-cover img{transform:scale(1.04);}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-body h3{font-size:18px;line-height:1.45;}
.news-body h3 a{color:var(--text);}
.news-body h3 a:hover{color:var(--glow);}
.news-sum{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--text-3);margin-top:auto;font-variant-numeric:tabular-nums;}
.empty-state{
  grid-column:1/-1;padding:56px 24px;text-align:center;
  display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-state .ico{
  width:56px;height:56px;border-radius:16px;display:grid;place-items:center;
  background:rgba(38,224,200,.1);color:var(--glow);font-size:22px;border:1px solid rgba(38,224,200,.22);
}
.empty-state p{color:var(--text-2);font-size:15px;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:280px 1fr;gap:48px;align-items:start;}
.faq-side{position:sticky;top:120px;}
.faq-side h3{font-size:20px;margin-bottom:12px;}
.faq-side p{font-size:14px;color:var(--text-2);margin-bottom:22px;}
.faq-side .btn{width:100%;}
.faq-item{border:1px solid var(--line);border-radius:var(--r-card);background:var(--glass);margin-bottom:14px;overflow:hidden;transition:border-color .24s ease;}
.faq-item.open{border-color:rgba(38,224,200,.45);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--text);
}
.faq-q:hover{color:var(--glow);}
.faq-idx{color:var(--glow);font-variant-numeric:tabular-nums;font-size:14px;font-weight:600;}
.faq-icon{margin-left:auto;color:var(--glow);font-size:14px;transition:transform .3s ease;}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease;}
.faq-a-inner{padding:0 24px 22px 62px;color:var(--text-2);font-size:15px;line-height:1.8;}

/* ---------- CTA 带 ---------- */
.cta-band{
  padding:46px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:linear-gradient(120deg,rgba(30,107,255,.24),rgba(38,224,200,.14));
  border:1px solid rgba(38,224,200,.28);border-radius:var(--r-card);
  backdrop-filter:blur(14px) saturate(140%);
}
.cta-band h3{font-size:clamp(20px,2.4vw,28px);margin-bottom:10px;}
.cta-band p{color:var(--text-2);font-size:15px;}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line-soft);background:rgba(9,14,24,.7);padding:72px 0 0;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px;}
.footer-brand p{font-size:14px;color:var(--text-2);margin-top:16px;max-width:320px;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:#fff;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--text-3);}
.footer-col a:hover{color:var(--glow);}
.footer-col p{font-size:13.5px;color:var(--text-3);line-height:1.9;}
.footer-bottom{
  border-top:1px solid var(--line-soft);padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- 浮动 CTA ---------- */
.fab{
  position:fixed;right:28px;bottom:28px;z-index:80;
  display:inline-flex;align-items:center;gap:12px;
  padding:14px 24px;border-radius:999px;
  background:linear-gradient(180deg,#2f79ff,#1a5fe6);color:#fff;font-weight:600;font-size:15px;
  box-shadow:var(--shadow-glow);
  transition:padding .32s ease,box-shadow .26s ease,transform .22s ease;
}
.fab:hover{transform:translateY(-2px);color:#fff;box-shadow:0 0 0 1px rgba(38,224,200,.75),0 18px 40px rgba(38,224,200,.38);}
.fab i{font-size:16px;}
.fab-text{max-width:160px;overflow:hidden;white-space:nowrap;transition:max-width .34s ease,opacity .26s ease;opacity:1;}
.fab.is-mini{padding:14px;}
.fab.is-mini .fab-text{max-width:0;opacity:0;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:72px 0;}
  .hero{padding:56px 0 68px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-float{position:static;margin-top:18px;left:0;}
  .hero-visual::after{display:none;}
  .hero-visual img{aspect-ratio:16/9;}
  .usp-grid{grid-template-columns:1fr;}
  .stats{grid-template-columns:repeat(2,1fr);gap:26px;}
  .price-grid{grid-template-columns:1fr;gap:22px;}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .faq-side{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .proof-row{gap:32px;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .container{padding:0 18px;}
  .brand-actions .link-consult{display:none;}
  .logo-text{font-size:18px;}
  .hero-title{font-size:clamp(26px,7.4vw,36px);}
  .hero-lead{font-size:15.5px;}
  .steps{display:flex;gap:18px;overflow-x:auto;padding-bottom:10px;scrollbar-width:none;}
  .steps::-webkit-scrollbar{display:none;}
  .steps::before{display:none;}
  .step{min-width:250px;padding-top:46px;padding-left:0;}
  .step-dot{left:0;}
  .proof-row{grid-template-columns:1fr;margin-bottom:44px;}
  .proof-row.reverse .proof-media{order:0;}
  .news-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .news-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 26px;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  body{padding-bottom:84px;}
  .fab{
    left:18px;right:18px;bottom:16px;justify-content:center;
    padding:15px 20px;
  }
  .fab.is-mini{padding:15px 20px;}
  .fab.is-mini .fab-text{max-width:180px;opacity:1;}
  .faq-a-inner{padding-left:24px;}
}
@media (max-width:560px){
  .stats{grid-template-columns:1fr;gap:20px;padding:22px;}
  .hero-cta .btn{width:100%;}
  .usp-bar{padding:20px;}
  .price-card{padding:26px 22px;}
  .faq-q{padding:18px 18px;font-size:15px;gap:12px;}
}

/* roulang page: article */
:root{
  --bg-0:#070B14;
  --bg-1:#0C1524;
  --bg-2:#111C2F;
  --brand:#1E6BFF;
  --brand-deep:#1550C8;
  --brand-soft:#4A8CFF;
  --cyan:#26E0C8;
  --warm:#FF7A59;
  --text:#E9EFFA;
  --text-2:#A8B4C8;
  --text-3:#6E7C93;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.045);
  --glass-2:rgba(255,255,255,.07);
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-card:0 18px 44px rgba(3,8,20,.55);
  --shadow-glow:0 0 0 1px rgba(38,224,200,.5),0 10px 30px rgba(38,224,200,.28);
  --shadow-glow-soft:0 0 0 1px rgba(38,224,200,.28),0 6px 18px rgba(38,224,200,.16);
  --container:1240px;
  --reading:820px;
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding-bottom:88px;
  background:var(--bg-0);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(760px 460px at 12% -8%, rgba(30,107,255,.18), transparent 70%),
    radial-gradient(620px 420px at 92% 6%, rgba(38,224,200,.12), transparent 72%);
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;}
p{margin:0;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(7,11,20,.86);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.brand-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:14px 0 12px;
}
.logo{display:inline-flex;align-items:center;gap:11px;}
.logo-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border-radius:12px;
  font-size:14px;
  font-weight:800;
  letter-spacing:.5px;
  color:#fff;
  background:linear-gradient(140deg,var(--brand),#0B2E7A);
  box-shadow:inset 0 0 0 1px rgba(38,224,200,.45),0 10px 22px rgba(30,107,255,.30);
}
.logo-text{font-size:20px;font-weight:800;letter-spacing:.6px;color:var(--text);}
.logo-text span{color:var(--cyan);}
.brand-actions{display:flex;align-items:center;gap:16px;}
.link-consult{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14px;color:var(--text-2);
  padding:8px 10px;border-radius:var(--radius-pill);
  transition:color .2s,background .2s;
}
.link-consult:hover{color:var(--cyan);background:rgba(38,224,200,.08);}
.channel-row{
  display:flex;
  align-items:center;
  gap:4px;
  padding:2px 0 12px;
  overflow-x:auto;
  scrollbar-width:none;
}
.channel-row::-webkit-scrollbar{display:none;}
.channel{
  position:relative;
  padding:8px 14px;
  border-radius:var(--radius-pill);
  font-size:15px;
  color:var(--text-2);
  white-space:nowrap;
  transition:color .2s,background .2s;
}
.channel:hover{color:var(--text);background:rgba(255,255,255,.05);}
.channel.active{color:var(--cyan);}
.channel.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:-1px;
  height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),rgba(38,224,200,0));
  box-shadow:0 0 12px rgba(38,224,200,.85);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;
  border:1px solid transparent;
  border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .25s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{
  color:#fff;
  background:linear-gradient(180deg,var(--brand),var(--brand-deep));
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(38,224,200,.65),0 16px 38px rgba(38,224,200,.34);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(38,224,200,.45),0 6px 16px rgba(38,224,200,.22);}
.btn-ghost{
  color:var(--cyan);
  border-color:rgba(38,224,200,.5);
  background:transparent;
}
.btn-ghost:hover{transform:translateY(-2px);background:rgba(38,224,200,.10);box-shadow:var(--shadow-glow-soft);}
.btn-ghost:active{transform:translateY(1px);box-shadow:none;}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;filter:saturate(40%);box-shadow:none;cursor:not-allowed;transform:none;}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;
  color:var(--cyan);
  background:rgba(38,224,200,.12);
  border:1px solid rgba(38,224,200,.28);
}
.badge-warm{
  color:var(--warm);
  background:rgba(255,122,89,.14);
  border-color:rgba(255,122,89,.30);
}
.badge-muted{
  color:var(--text-2);
  background:rgba(255,255,255,.06);
  border-color:var(--line);
}

/* ---------- page hero (article header) ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;
  background-position:center;
  opacity:.34;
  transform:scale(1.04);
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.72),rgba(7,11,20,.94) 78%,var(--bg-0));
}
.page-hero .container{padding-top:30px;padding-bottom:44px;}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}
.breadcrumb a{color:var(--text-2);transition:color .2s;}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb .sep{color:rgba(255,255,255,.22);}
.breadcrumb .current{color:var(--text-3);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-head{max-width:920px;margin-top:20px;}
.article-head h1{
  margin:14px 0 18px;
  font-size:clamp(28px,4.6vw,44px);
  line-height:1.24;
  letter-spacing:.2px;
  color:#fff;
}
.meta-bar{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px 18px;
  font-size:13px;
  color:var(--text-3);
}
.meta-bar .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.22);}
.meta-bar i{color:var(--cyan);margin-right:6px;}
.meta-bar .num{color:var(--text-2);}

/* ---------- article body ---------- */
.article-section{padding:56px 0 20px;}
.reading{max-width:var(--reading);margin:0 auto;}
.article-panel{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  padding:36px 38px;
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  position:relative;
}
.article-panel::before{
  content:"";
  position:absolute;
  left:38px;right:38px;top:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
}
.article-body{font-size:16px;line-height:1.85;color:#D8E1F0;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 18px;}
.article-body h2{
  position:relative;
  margin:38px 0 16px;
  padding-left:16px;
  font-size:clamp(20px,2.4vw,26px);
  color:#fff;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:5px;bottom:5px;
  width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--cyan),rgba(38,224,200,.14));
  box-shadow:0 0 14px rgba(38,224,200,.55);
}
.article-body h3{margin:28px 0 12px;font-size:18px;color:#fff;}
.article-body h4{margin:22px 0 10px;font-size:16px;color:#EAF1FF;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;color:#D8E1F0;}
.article-body li{margin:8px 0;}
.article-body li::marker{color:var(--cyan);}
.article-body a{color:var(--cyan);border-bottom:1px solid rgba(38,224,200,.35);}
.article-body a:hover{color:#7ff5e5;border-bottom-color:#7ff5e5;}
.article-body strong{color:#fff;}
.article-body blockquote{
  margin:24px 0;
  padding:16px 20px;
  border:1px solid var(--line);
  border-left:3px solid var(--cyan);
  border-radius:var(--radius-md);
  background:var(--glass);
  color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  width:100%;
  border-radius:var(--radius-md);
  margin:24px auto;
  box-shadow:var(--shadow-card);
}
.article-body figure{margin:24px 0;}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--text-3);text-align:center;}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:14.5px;
  background:rgba(255,255,255,.02);
  border-radius:var(--radius-sm);
  overflow:hidden;
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:11px 14px;
  text-align:left;
}
.article-body th{background:rgba(255,255,255,.06);color:#fff;font-weight:600;}
.article-body hr{
  height:1px;border:0;margin:32px 0;
  background:linear-gradient(90deg,transparent,var(--line-strong),transparent);
}
.article-body code{
  padding:2px 7px;border-radius:6px;
  background:rgba(38,224,200,.10);
  color:#8ff2e5;font-size:14px;
}
.article-foot{
  margin-top:30px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:14px;
  font-size:13px;
  color:var(--text-3);
}
.article-foot .tag-row{display:flex;gap:8px;flex-wrap:wrap;}
.empty-state{
  text-align:center;
  padding:52px 24px;
  border:1px dashed var(--line-strong);
  border-radius:var(--radius-lg);
  background:var(--glass);
  color:var(--text-2);
}
.empty-state i{font-size:26px;color:var(--cyan);}
.empty-state h2{margin:14px 0 8px;font-size:20px;color:#fff;}
.empty-state p{margin-bottom:20px;font-size:14.5px;}

/* ---------- section head ---------- */
.section{padding:56px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:26px;
}
.section-head h2{font-size:clamp(22px,3vw,30px);color:#fff;}
.section-head p{margin-top:8px;font-size:14.5px;color:var(--text-2);}
.section-head .more{
  font-size:14px;color:var(--cyan);
  display:inline-flex;align-items:center;gap:6px;
  white-space:nowrap;
  transition:gap .2s;
}
.section-head .more:hover{gap:10px;}

/* ---------- related cards ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.post-card{
  display:flex;
  flex-direction:column;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.post-card:hover{
  transform:translateY(-4px);
  border-color:rgba(38,224,200,.42);
  box-shadow:0 22px 52px rgba(3,8,20,.62),0 0 0 1px rgba(38,224,200,.18);
}
.post-card .thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:linear-gradient(140deg,#132540,#0B1626);
}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;}
.post-card .thumb::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.05),rgba(7,11,20,.62));
}
.post-card .thumb .badge{position:absolute;left:14px;top:14px;z-index:2;}
.post-card .card-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-card h3{font-size:17px;line-height:1.5;color:#fff;}
.post-card h3 a{transition:color .2s;}
.post-card h3 a:hover{color:var(--cyan);}
.post-card p{
  font-size:14px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .card-meta{
  margin-top:auto;
  display:flex;align-items:center;gap:10px;
  font-size:12.5px;color:var(--text-3);
}
.post-card .card-meta i{color:var(--cyan);margin-right:5px;}

/* ---------- cta band ---------- */
.cta-band{padding:8px 0 72px;}
.cta-inner{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--glass);
  box-shadow:var(--shadow-card);
  padding:40px 42px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  flex-wrap:wrap;
}
.cta-inner::before{
  content:"";
  position:absolute;
  inset:-40% -10% auto auto;
  width:420px;height:420px;
  background:radial-gradient(circle,rgba(38,224,200,.20),transparent 68%);
  pointer-events:none;
}
.cta-inner h2{font-size:clamp(20px,2.6vw,28px);color:#fff;position:relative;}
.cta-inner p{margin-top:10px;font-size:14.5px;color:var(--text-2);max-width:620px;position:relative;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;}

/* ---------- footer ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,21,36,.65),rgba(7,11,20,.96));
  padding:56px 0 28px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1.3fr 1.1fr;
  gap:34px;
}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--text-2);max-width:340px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;}
.footer-col ul{list-style:none;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .2s;}
.footer-col a:hover{color:var(--cyan);}
.footer-col p{font-size:13.5px;color:var(--text-3);line-height:1.8;}
.footer-bottom{
  margin-top:38px;
  padding-top:18px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  font-size:13px;
  color:var(--text-3);
}

/* ---------- floating cta ---------- */
.float-cta{
  position:fixed;
  right:26px;
  bottom:26px;
  z-index:60;
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:14px 22px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  color:#fff;
  background:linear-gradient(180deg,var(--brand),var(--brand-deep));
  box-shadow:var(--shadow-glow);
  transition:padding .28s ease,transform .18s ease,box-shadow .25s ease;
}
.float-cta i{color:#B9FFF4;}
.float-cta span{
  max-width:120px;
  overflow:hidden;
  white-space:nowrap;
  transition:max-width .3s ease,opacity .25s ease;
}
.float-cta:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(38,224,200,.65),0 18px 40px rgba(38,224,200,.34);}
.float-cta.is-mini{padding:14px 15px;}
.float-cta.is-mini span{max-width:0;opacity:0;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 20px;}
  .footer-grid{grid-template-columns:1.4fr 1fr;gap:28px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .article-panel{padding:30px 28px;}
  .article-panel::before{left:28px;right:28px;}
  .cta-inner{padding:32px 28px;}
}
@media (max-width:768px){
  body{padding-bottom:96px;}
  .brand-row{padding:12px 0 10px;}
  .brand-actions .link-consult{display:none;}
  .logo-text{font-size:18px;}
  .page-hero .container{padding-top:22px;padding-bottom:32px;}
  .breadcrumb .current{max-width:200px;}
  .article-section{padding:36px 0 12px;}
  .article-panel{padding:22px 18px;border-radius:16px;}
  .article-panel::before{left:18px;right:18px;}
  .article-body{font-size:15.5px;line-height:1.85;}
  .article-body h2{margin-top:30px;}
  .section{padding:44px 0;}
  .card-grid{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .cta-band{padding-bottom:52px;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:26px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .float-cta{
    left:16px;right:16px;bottom:12px;
    justify-content:center;
    border-radius:16px;
    padding:14px 18px;
  }
  .float-cta.is-mini{padding:14px 18px;}
  .float-cta.is-mini span{max-width:160px;opacity:1;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .btn{padding:12px 18px;font-size:14.5px;}
  .channel{padding:8px 11px;font-size:14px;}
  .article-head h1{font-size:24px;}
  .meta-bar{gap:8px 12px;}
  .article-body h2{font-size:19px;padding-left:13px;}
}

/* roulang page: category1 */
:root{
  --bg-0:#070B14;
  --bg-1:#0C1524;
  --bg-2:#111C2F;
  --brand:#1E6BFF;
  --brand-deep:#0F4BD8;
  --cyan:#26E0C8;
  --warm:#FF7A59;
  --text:#E9EFFA;
  --text-2:#A8B4C8;
  --text-3:#6E7C93;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.045);
  --glass-hi:rgba(255,255,255,.075);
  --r-card:18px;
  --r-img:14px;
  --r-input:12px;
  --r-pill:999px;
  --shadow-card:0 18px 44px rgba(3,8,20,.55);
  --shadow-soft:0 10px 30px rgba(3,8,20,.45);
  --glow-btn:0 0 0 1px rgba(38,224,200,.5),0 10px 30px rgba(38,224,200,.28);
  --sec-desktop:96px;
  --sec-tablet:72px;
  --sec-mobile:56px;
}

*{margin:0;padding:0;box-sizing:border-box;}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}

body{
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg-0);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  padding-bottom:88px;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(680px 420px at 10% -8%,rgba(38,224,200,.10),transparent 65%),
    radial-gradient(760px 500px at 94% 2%,rgba(30,107,255,.13),transparent 68%);
}

body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  opacity:.05;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:64px 64px;
}

img{display:block;max-width:100%;border-radius:var(--r-img);}
a{color:var(--cyan);text-decoration:none;transition:color .22s ease;}
a:hover{color:#6FF0DE;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{list-style:none;}
h1,h2,h3,h4{line-height:1.25;font-weight:700;}
p{color:var(--text-2);}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:2;
}

.num{font-variant-numeric:tabular-nums;}

::selection{background:rgba(38,224,200,.28);color:#fff;}

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

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  letter-spacing:.3px;
  white-space:nowrap;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;
  box-shadow:var(--glow-btn);
}
.btn-primary:hover{
  transform:translateY(-2px);
  background:linear-gradient(135deg,#3D80FF,#1A5BEA);
  box-shadow:0 0 0 1px rgba(38,224,200,.65),0 16px 38px rgba(38,224,200,.36);
  color:#fff;
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(38,224,200,.4),0 6px 16px rgba(38,224,200,.2);}
.btn-ghost{
  background:transparent;
  color:var(--cyan);
  border:1px solid rgba(38,224,200,.45);
}
.btn-ghost:hover{
  transform:translateY(-2px);
  background:rgba(38,224,200,.10);
  box-shadow:0 12px 30px rgba(38,224,200,.18);
  color:#7DF2E2;
}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.4;filter:saturate(40%);box-shadow:none;cursor:not-allowed;}

/* ============ 头部 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(7,11,20,.82);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.brand-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:14px 0 8px;
}
.logo{display:inline-flex;align-items:center;gap:11px;}
.logo-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:12px;
  font-size:14px;font-weight:700;letter-spacing:.5px;
  color:#04121A;
  background:linear-gradient(135deg,var(--cyan),var(--brand));
  box-shadow:0 0 0 1px rgba(38,224,200,.35),0 8px 22px rgba(38,224,200,.22);
}
.logo-text{font-size:20px;font-weight:700;color:var(--text);letter-spacing:.5px;}
.logo-text span{color:var(--cyan);}
.brand-actions{display:flex;align-items:center;gap:18px;}
.link-consult{
  font-size:14px;
  color:var(--text-2);
  display:inline-flex;
  align-items:center;
  gap:7px;
}
.link-consult:hover{color:var(--cyan);}

.channel-row{
  display:flex;
  align-items:center;
  gap:8px;
  padding:2px 0 10px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-row::-webkit-scrollbar{display:none;}
.channel{
  position:relative;
  padding:9px 15px;
  border-radius:var(--r-pill);
  font-size:15px;
  color:var(--text-3);
  white-space:nowrap;
  transition:color .22s ease,background .22s ease;
}
.channel:hover{color:var(--text);background:rgba(255,255,255,.05);}
.channel.active{
  color:var(--text);
  background:rgba(38,224,200,.10);
}
.channel.active::after{
  content:"";
  position:absolute;
  left:15px;right:15px;bottom:3px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--brand));
  box-shadow:0 0 12px rgba(38,224,200,.75);
}

/* ============ 页面横幅 ============ */
.page-banner{
  position:relative;
  padding:78px 0 62px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-banner::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  filter:saturate(.85);
  opacity:.55;
}
.page-banner::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(90deg,rgba(7,11,20,.94) 0%,rgba(7,11,20,.78) 46%,rgba(7,11,20,.6) 100%),
    radial-gradient(560px 320px at 18% 30%,rgba(38,224,200,.16),transparent 70%);
}
.page-banner .container{position:relative;z-index:2;}

.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb i{font-size:10px;opacity:.7;}

.banner-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  font-size:13px;
  color:var(--cyan);
  background:rgba(38,224,200,.12);
  border:1px solid rgba(38,224,200,.28);
  margin-bottom:20px;
}
.banner-title{
  font-size:clamp(30px,5.2vw,54px);
  letter-spacing:.5px;
  margin-bottom:20px;
}
.banner-title .h1-key{
  color:var(--cyan);
  text-shadow:0 0 28px rgba(38,224,200,.4);
}
.banner-lead{
  max-width:760px;
  font-size:17px;
  color:var(--text-2);
  margin-bottom:30px;
}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}

.banner-stats{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.banner-stats .stat{
  flex:1 1 160px;
  min-width:150px;
  padding:16px 20px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.banner-stats .stat b{
  display:block;
  font-size:22px;
  color:var(--text);
  letter-spacing:.4px;
}
.banner-stats .stat span{
  display:block;
  font-size:13px;
  color:var(--text-3);
}

/* ============ 主体双栏 ============ */
.layout{
  display:grid;
  grid-template-columns:264px minmax(0,1fr);
  gap:34px;
  padding:80px 0 0;
  align-items:start;
}

.sidebar{
  position:sticky;
  top:132px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.side-card{
  padding:22px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.07);
}
.side-card h3{
  font-size:15px;
  letter-spacing:.4px;
  margin-bottom:14px;
  padding-left:12px;
  position:relative;
}
.side-card h3::before{
  content:"";
  position:absolute;
  left:0;top:4px;bottom:4px;
  width:3px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--cyan),var(--brand));
  box-shadow:0 0 12px rgba(38,224,200,.6);
}
.side-nav{display:flex;flex-direction:column;gap:4px;}
.side-nav a{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:10px;
  font-size:14px;
  color:var(--text-2);
  transition:background .2s ease,color .2s ease,padding-left .2s ease;
}
.side-nav a i{font-size:12px;color:var(--text-3);transition:color .2s ease;}
.side-nav a:hover{background:rgba(255,255,255,.05);color:var(--text);padding-left:16px;}
.side-nav a:hover i{color:var(--cyan);}

.side-list{display:flex;flex-direction:column;gap:12px;}
.side-list li{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:10px;
  font-size:14px;
  color:var(--text-2);
  padding-bottom:11px;
  border-bottom:1px dashed rgba(255,255,255,.08);
}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list li b{color:var(--text);font-size:14px;}

.side-consult p{font-size:13.5px;color:var(--text-2);margin-bottom:16px;}
.side-consult .btn{width:100%;}

/* ============ 内容区 ============ */
.content-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  margin-bottom:26px;
}
.content-head h2{font-size:clamp(24px,3.4vw,34px);}
.content-head p{font-size:14.5px;max-width:560px;}

.card-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.vcard{
  position:relative;
  display:flex;
  flex-direction:column;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  overflow:hidden;
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.07);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.vcard:hover{
  transform:translateY(-4px);
  border-color:rgba(38,224,200,.32);
  box-shadow:0 24px 54px rgba(3,8,20,.62),0 0 0 1px rgba(38,224,200,.18);
}
.vcard-media{
  position:relative;
  aspect-ratio:16/9;
  background:linear-gradient(135deg,var(--bg-2),#16233A);
  overflow:hidden;
}
.vcard-media img{
  width:100%;height:100%;
  object-fit:cover;
  border-radius:0;
  transition:transform .5s ease;
}
.vcard:hover .vcard-media img{transform:scale(1.05);}
.vcard-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.05) 40%,rgba(7,11,20,.72) 100%);
}
.vcard-media .badge{position:absolute;left:14px;top:14px;z-index:2;}
.vcard-media .media-time{
  position:absolute;
  right:14px;bottom:12px;
  z-index:2;
  font-size:12.5px;
  color:var(--text-2);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.vcard-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.vcard-body h3{font-size:18px;}
.vcard-body h3 a{color:var(--text);}
.vcard-body h3 a:hover{color:var(--cyan);}
.vcard-body p{
  font-size:14.5px;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.vcard-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid rgba(255,255,255,.07);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--text-3);
}
.vcard-foot .more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13.5px;
  color:var(--cyan);
}
.vcard-foot .more i{transition:transform .22s ease;}
.vcard-foot .more:hover i{transform:translateX(4px);}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  border-radius:var(--r-pill);
  font-size:12.5px;
  letter-spacing:.2px;
  background:rgba(38,224,200,.14);
  color:var(--cyan);
  border:1px solid rgba(38,224,200,.24);
}
.badge-warm{
  background:rgba(255,122,89,.15);
  color:#FFA48C;
  border-color:rgba(255,122,89,.28);
}
.badge-blue{
  background:rgba(30,107,255,.16);
  color:#8CB6FF;
  border-color:rgba(30,107,255,.3);
}

/* ============ 通用板块 ============ */
.section{padding:var(--sec-desktop) 0 0;}
.section-head{max-width:720px;margin-bottom:42px;}
.section-head .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--cyan);
  letter-spacing:1.5px;
  margin-bottom:14px;
}
.section-head .eyebrow::before{
  content:"";
  width:22px;height:1px;
  background:var(--cyan);
  box-shadow:0 0 8px rgba(38,224,200,.8);
}
.section-head h2{font-size:clamp(24px,3.4vw,38px);margin-bottom:16px;}
.section-head p{font-size:15.5px;}

/* 规格错落栅格 */
.spec-grid{
  display:grid;
  grid-template-columns:1.25fr 1fr;
  gap:24px;
}
.spec-main{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--glass);
  box-shadow:var(--shadow-card);
  min-height:340px;
  display:flex;
  align-items:flex-end;
}
.spec-main img{
  position:absolute;
  inset:0;
  width:100%;height:100%;
  object-fit:cover;
  border-radius:0;
  opacity:.5;
}
.spec-main::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.15) 20%,rgba(7,11,20,.92) 100%);
}
.spec-main-body{position:relative;z-index:2;padding:30px;}
.spec-main-body h3{font-size:22px;margin-bottom:12px;}
.spec-main-body p{font-size:15px;max-width:520px;}

.spec-side{display:flex;flex-direction:column;gap:24px;}
.spec-row{
  display:flex;
  align-items:flex-start;
  gap:18px;
  padding:24px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-soft),inset 0 1px 0 rgba(255,255,255,.07);
  transition:transform .24s ease,border-color .24s ease;
  flex:1;
}
.spec-row:hover{transform:translateY(-3px);border-color:rgba(38,224,200,.3);}
.spec-ico{
  flex:0 0 46px;
  width:46px;height:46px;
  display:grid;place-items:center;
  border-radius:13px;
  font-size:17px;
  color:var(--cyan);
  background:rgba(38,224,200,.12);
  border:1px solid rgba(38,224,200,.24);
}
.spec-row h3{font-size:17px;margin-bottom:8px;}
.spec-row p{font-size:14.5px;}

/* 时间轴 */
.timeline{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
  position:relative;
  margin-top:10px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:6%;
  right:6%;
  top:15px;
  height:2px;
  background:linear-gradient(90deg,rgba(38,224,200,.65),rgba(30,107,255,.5),rgba(38,224,200,.15));
  border-radius:2px;
}
.tl-item{position:relative;padding-top:48px;}
.tl-dot{
  position:absolute;
  left:0;top:0;
  width:32px;height:32px;
  border-radius:50%;
  display:grid;place-items:center;
  font-size:13px;
  font-weight:700;
  color:#04121A;
  background:linear-gradient(135deg,var(--cyan),var(--brand));
  box-shadow:0 0 0 5px rgba(38,224,200,.12),0 0 22px rgba(38,224,200,.45);
}
.tl-item:nth-child(3) .tl-dot{background:linear-gradient(135deg,var(--warm),#FF9C7A);box-shadow:0 0 0 5px rgba(255,122,89,.12),0 0 22px rgba(255,122,89,.4);}
.tl-item h3{font-size:17px;margin-bottom:10px;}
.tl-item p{font-size:14.5px;}

/* 数据条 */
.databar{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.databar .cell{
  background:rgba(12,21,36,.86);
  padding:28px 24px;
  transition:background .24s ease;
}
.databar .cell:hover{background:rgba(17,28,47,.95);}
.databar .cell b{
  display:block;
  font-size:clamp(22px,2.6vw,30px);
  color:var(--cyan);
  letter-spacing:.5px;
  margin-bottom:6px;
}
.databar .cell span{font-size:13.5px;color:var(--text-3);}

/* FAQ */
.faq-wrap{
  display:grid;
  grid-template-columns:280px minmax(0,1fr);
  gap:44px;
  align-items:start;
}
.faq-aside{position:sticky;top:132px;}
.faq-aside h2{font-size:clamp(24px,3.4vw,34px);margin-bottom:16px;}
.faq-aside p{font-size:15px;margin-bottom:22px;}
.faq-aside .aside-note{
  padding:18px 20px;
  border-radius:var(--r-card);
  background:rgba(38,224,200,.07);
  border:1px solid rgba(38,224,200,.2);
  font-size:13.5px;
  color:var(--text-2);
}
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  overflow:hidden;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-item.open{
  border-color:rgba(38,224,200,.32);
  box-shadow:0 0 0 1px rgba(38,224,200,.14),0 18px 40px rgba(3,8,20,.5);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  gap:16px;
  padding:20px 22px;
  text-align:left;
}
.faq-num{
  font-size:14px;
  font-weight:700;
  color:var(--cyan);
  flex:0 0 auto;
}
.faq-text{
  flex:1;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  line-height:1.6;
}
.faq-icon{
  flex:0 0 auto;
  font-size:14px;
  color:var(--text-3);
  transition:transform .32s ease,color .24s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);color:var(--cyan);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .38s ease;
}
.faq-a-inner{padding:0 22px 22px 54px;}
.faq-a-inner p{font-size:15px;line-height:1.8;}
.faq-a-inner ul{margin-top:10px;display:flex;flex-direction:column;gap:8px;}
.faq-a-inner li{
  position:relative;
  padding-left:16px;
  font-size:14.5px;
  color:var(--text-2);
}
.faq-a-inner li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 8px rgba(38,224,200,.7);
}

/* CTA 带 */
.cta-band{
  margin-top:var(--sec-desktop);
  border-radius:22px;
  padding:48px 46px;
  background:
    radial-gradient(520px 260px at 12% 0%,rgba(38,224,200,.16),transparent 70%),
    linear-gradient(135deg,rgba(17,28,47,.95),rgba(12,21,36,.92));
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:34px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,3vw,32px);margin-bottom:12px;}
.cta-band p{font-size:15px;max-width:620px;}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line);
  background:rgba(7,11,20,.7);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1.2fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand p{font-size:14px;color:var(--text-3);max-width:320px;}
.footer-col h4{
  font-size:15px;
  margin-bottom:18px;
  letter-spacing:.4px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{
  font-size:14px;
  color:var(--text-2);
}
.footer-col ul a:hover{color:var(--cyan);}
.footer-col p{font-size:13.5px;color:var(--text-3);line-height:1.8;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:22px 0 30px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;
  right:28px;
  bottom:28px;
  z-index:90;
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px;
  border-radius:var(--r-pill);
  background:rgba(12,21,36,.86);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:0 20px 46px rgba(3,8,20,.6);
}
.float-cta .fc-main{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:11px 22px;
  border-radius:var(--r-pill);
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;
  font-size:14.5px;
  font-weight:600;
  box-shadow:var(--glow-btn);
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease;
}
.float-cta .fc-main:hover{
  transform:translateY(-2px);
  background:linear-gradient(135deg,#3D80FF,#1A5BEA);
  color:#fff;
}
.float-cta .fc-sub{
  padding:11px 18px;
  border-radius:var(--r-pill);
  font-size:14px;
  color:var(--text-2);
  border:1px solid rgba(255,255,255,.14);
}
.float-cta .fc-sub:hover{color:var(--cyan);border-color:rgba(38,224,200,.4);}
.float-cta.is-collapsed .fc-label,
.float-cta.is-collapsed .fc-sub{display:none;}
.float-cta.is-collapsed .fc-main{padding:13px;}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .layout{grid-template-columns:236px minmax(0,1fr);gap:28px;}
  .faq-wrap{grid-template-columns:248px minmax(0,1fr);gap:34px;}
}

@media (max-width:1024px){
  :root{--sec-desktop:72px;}
  .layout{grid-template-columns:1fr;padding-top:56px;}
  .sidebar{position:static;flex-direction:row;flex-wrap:wrap;}
  .side-card{flex:1 1 260px;}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .faq-aside{position:static;}
  .spec-grid{grid-template-columns:1fr;}
  .spec-main{min-height:300px;}
  .timeline{grid-template-columns:repeat(2,1fr);row-gap:34px;}
  .timeline::before{display:none;}
  .databar{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}

@media (max-width:768px){
  :root{--sec-desktop:56px;}
  body{padding-bottom:96px;}
  .brand-row{padding:12px 0 6px;}
  .brand-actions .link-consult{display:none;}
  .btn{padding:12px 22px;}
  .btn-sm{padding:10px 16px;font-size:13.5px;}
  .page-banner{padding:52px 0 44px;}
  .banner-lead{font-size:15.5px;}
  .banner-actions{gap:12px;}
  .banner-stats .stat{flex:1 1 100%;}
  .card-grid{grid-template-columns:1fr;}
  .cta-band{padding:34px 26px;margin-top:56px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{margin-top:64px;padding-top:48px;}
  .float-cta{
    left:14px;
    right:14px;
    bottom:14px;
    justify-content:space-between;
    border-radius:16px;
    padding:10px 12px;
  }
  .float-cta .fc-main{flex:1;justify-content:center;}
  .float-cta.is-collapsed .fc-label{display:inline;}
  .float-cta.is-collapsed .fc-sub{display:inline-flex;}
  .float-cta.is-collapsed .fc-main{padding:11px 22px;}
}

@media (max-width:560px){
  .container{padding:0 18px;}
  .timeline{grid-template-columns:1fr;}
  .databar{grid-template-columns:1fr;}
  .faq-a-inner{padding:0 18px 20px 18px;}
  .faq-q{padding:18px;gap:12px;}
  .faq-text{font-size:15.5px;}
  .vcard-body{padding:18px;}
  .spec-main-body{padding:22px;}
}

@media (max-width:380px){
  .logo-text{font-size:18px;}
  .logo-mark{width:34px;height:34px;font-size:13px;}
  .channel{font-size:14px;padding:8px 12px;}
  .btn{width:100%;}
  .banner-actions .btn{width:100%;}
}

/* roulang page: category2 */
:root{
  --bg-0:#070B14;
  --bg-1:#0C1524;
  --bg-2:#111C2F;
  --brand:#1E6BFF;
  --cyan:#26E0C8;
  --warm:#FF7A59;
  --text:#E9EFFA;
  --text-2:#A8B4C8;
  --text-3:#6E7C93;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.07);
  --r-card:18px;
  --r-img:14px;
  --r-input:12px;
  --shadow-card:0 18px 44px rgba(3,8,20,.55);
  --shadow-glow:0 0 0 1px rgba(38,224,200,.5), 0 10px 30px rgba(38,224,200,.28);
  --maxw:1240px;
  --readw:820px;
}
*,*::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);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  padding-bottom:88px;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease;}
a:hover{color:#7BF3E2;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(38,224,200,.28);color:#fff;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ HEADER ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(7,11,20,.84);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.brand-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:14px 0;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:11px;
  color:var(--text);
}
.logo:hover{color:var(--text);}
.logo-mark{
  width:38px;
  height:38px;
  border-radius:12px;
  display:grid;
  place-items:center;
  font-size:14px;
  font-weight:800;
  letter-spacing:.5px;
  color:#04121A;
  background:linear-gradient(135deg,var(--cyan),var(--brand));
  box-shadow:0 8px 22px rgba(38,224,200,.28);
}
.logo-text{font-size:20px;font-weight:800;letter-spacing:.6px;line-height:1;}
.logo-text span{color:var(--cyan);}
.brand-actions{display:flex;align-items:center;gap:16px;}
.link-consult{
  font-size:14px;
  color:var(--text-2);
  display:inline-flex;
  align-items:center;
  gap:7px;
}
.link-consult:hover{color:var(--cyan);}
.channel-row{
  display:flex;
  align-items:stretch;
  gap:30px;
  overflow-x:auto;
  scrollbar-width:none;
  border-top:1px solid rgba(255,255,255,.05);
}
.channel-row::-webkit-scrollbar{display:none;}
.channel{
  position:relative;
  padding:13px 2px 15px;
  font-size:15px;
  color:var(--text-3);
  white-space:nowrap;
  flex:0 0 auto;
}
.channel::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--brand));
  opacity:0;
  transform:scaleX(.35);
  transition:opacity .25s ease,transform .25s ease;
}
.channel:hover{color:var(--text);}
.channel.active{color:var(--text);font-weight:600;}
.channel.active::after{opacity:1;transform:scaleX(1);box-shadow:0 0 14px rgba(38,224,200,.65);}

/* ============ BUTTONS / BADGES ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  padding:13px 26px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn-primary{
  color:#04121A;
  background:linear-gradient(135deg,var(--cyan),var(--brand));
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{
  color:#04121A;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(38,224,200,.7),0 14px 38px rgba(38,224,200,.4);
}
.btn-primary:active{
  transform:translateY(1px);
  box-shadow:0 0 0 1px rgba(38,224,200,.45),0 6px 18px rgba(38,224,200,.2);
}
.btn-ghost{
  color:var(--cyan);
  border-color:rgba(38,224,200,.5);
  background:transparent;
}
.btn-ghost:hover{
  color:var(--cyan);
  background:rgba(38,224,200,.1);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{
  filter:saturate(.4);
  opacity:.55;
  box-shadow:none;
  pointer-events:none;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.3px;
  color:var(--cyan);
  background:rgba(38,224,200,.12);
  border:1px solid rgba(38,224,200,.28);
}
.badge-warm{
  color:var(--warm);
  background:rgba(255,122,89,.14);
  border-color:rgba(255,122,89,.3);
}
.badge-plain{
  color:var(--text-2);
  background:rgba(255,255,255,.05);
  border-color:var(--line);
}

/* ============ HERO ============ */
.page-hero{
  position:relative;
  isolation:isolate;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero .hero-bg{
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  z-index:-2;
}
.page-hero .hero-mask{
  position:absolute;
  inset:0;
  z-index:-1;
  background:
    radial-gradient(760px 420px at 18% 12%, rgba(38,224,200,.18), transparent 68%),
    radial-gradient(620px 380px at 88% 82%, rgba(30,107,255,.20), transparent 70%),
    linear-gradient(180deg, rgba(7,11,20,.74), rgba(7,11,20,.95));
}
.hero-inner{
  position:relative;
  padding:80px 0 62px;
  max-width:860px;
}
.hero-inner h1{
  font-size:clamp(30px,5.2vw,54px);
  margin:18px 0 16px;
  letter-spacing:.5px;
}
.hero-inner h1 em{
  font-style:normal;
  color:var(--cyan);
}
.hero-sub{
  font-size:17px;
  color:var(--text-2);
  max-width:640px;
  line-height:1.9;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:30px;
}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
  margin-top:46px;
  padding-top:30px;
  border-top:1px solid var(--line);
}
.hero-stat .hv{
  font-size:26px;
  font-weight:700;
  color:var(--cyan);
  font-variant-numeric:tabular-nums;
  letter-spacing:.5px;
}
.hero-stat .hk{
  font-size:13px;
  color:var(--text-3);
  margin-top:4px;
}

/* ============ FILTER ROW ============ */
.filter-bar{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:rgba(12,21,36,.62);
}
.filter-row{
  display:flex;
  align-items:center;
  gap:10px;
  padding:16px 0;
  overflow-x:auto;
  scrollbar-width:none;
}
.filter-row::-webkit-scrollbar{display:none;}
.filter-chip{
  flex:0 0 auto;
  padding:9px 18px;
  border-radius:999px;
  font-size:14px;
  color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  transition:color .2s ease,background .2s ease,border-color .2s ease,transform .2s ease;
}
.filter-chip:hover{color:var(--text);border-color:rgba(38,224,200,.4);transform:translateY(-1px);}
.filter-chip.active{
  color:#04121A;
  font-weight:600;
  background:linear-gradient(135deg,var(--cyan),var(--brand));
  border-color:transparent;
}

/* ============ SECTIONS ============ */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:720px;margin-bottom:46px;}
.section-head h2{
  font-size:clamp(24px,3.4vw,38px);
  margin:14px 0 14px;
}
.section-head p{color:var(--text-2);font-size:16px;}
.eyebrow{
  font-size:13px;
  letter-spacing:2px;
  color:var(--cyan);
  text-transform:uppercase;
}
.divider{
  height:1px;
  background:linear-gradient(90deg,rgba(38,224,200,.45),rgba(30,107,255,.18),transparent);
  margin:0;
  border:0;
}

/* ============ SPLIT (交错图文) ============ */
.split{
  display:grid;
  grid-template-columns:1.06fr .94fr;
  gap:54px;
  align-items:center;
  padding:44px 0;
}
.split + .split{border-top:1px solid rgba(255,255,255,.06);}
.split.reverse .split-media{order:2;}
.split-media{
  position:relative;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  aspect-ratio:4/3;
  background:linear-gradient(135deg,rgba(38,224,200,.12),rgba(30,107,255,.14));
}
.split-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .6s ease;
}
.split-media:hover img{transform:scale(1.03);}
.split-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(200deg,rgba(7,11,20,.06),rgba(7,11,20,.55));
  pointer-events:none;
}
.split-body h3{font-size:clamp(20px,2.4vw,26px);margin:14px 0 14px;}
.split-body p{color:var(--text-2);}
.point-list{margin-top:22px;display:grid;gap:12px;}
.point-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15px;
  color:var(--text);
  padding:12px 16px;
  border-radius:var(--r-input);
  background:var(--glass);
  border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease;}
.point-list li:hover{border-color:rgba(38,224,200,.35);transform:translateX(3px);}
.point-list i{color:var(--cyan);margin-top:5px;font-size:13px;}

/* ============ TIMELINE ============ */
.timeline-wrap{overflow-x:auto;scrollbar-width:none;padding-bottom:6px;}
.timeline-wrap::-webkit-scrollbar{display:none;}
.timeline{
  position:relative;
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:26px;
  min-width:760px;
  padding-top:10px;
}
.timeline::before{
  content:"";
  position:absolute;
  top:32px;
  left:2%;
  right:2%;
  height:1px;
  background:linear-gradient(90deg,rgba(38,224,200,.08),rgba(38,224,200,.65),rgba(30,107,255,.5),rgba(38,224,200,.08));
}
.tl-step{position:relative;padding-top:64px;}
.tl-dot{
  position:absolute;
  top:22px;
  left:2px;
  width:20px;
  height:20px;
  border-radius:999px;
  background:var(--warm);
  box-shadow:0 0 0 6px rgba(255,122,89,.13),0 0 22px rgba(255,122,89,.6);
}
.tl-step h4{font-size:18px;margin-bottom:10px;}
.tl-step p{font-size:14.5px;color:var(--text-2);}
.tl-idx{
  font-variant-numeric:tabular-nums;
  font-size:13px;
  color:var(--text-3);
  letter-spacing:1px;
}

/* ============ STAT BAR ============ */
.stat-bar{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  margin-bottom:64px;
}
.stat-cell{
  background:var(--bg-1);
  padding:26px 22px;
  transition:background .25s ease;
}
.stat-cell:hover{background:var(--bg-2);}
.stat-cell .sv{
  font-size:clamp(22px,3vw,32px);
  font-weight:700;
  color:var(--cyan);
  font-variant-numeric:tabular-nums;
  letter-spacing:.5px;
}
.stat-cell .sk{font-size:13px;color:var(--text-3);margin-top:6px;}

/* ============ CARDS ============ */
.card{
  position:relative;
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  padding:26px;
  transition:transform .25s ease,border-color .25s ease;
}
.card::before{
  content:"";
  position:absolute;
  left:16px;
  right:16px;
  top:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
}
.card:hover{transform:translateY(-3px);border-color:rgba(38,224,200,.32);}
.card h3{font-size:20px;margin-bottom:12px;}
.card p{color:var(--text-2);font-size:15px;}
.mix-grid{
  display:grid;
  grid-template-columns:1.25fr 1fr;
  grid-template-rows:auto auto;
  gap:22px;
}
.mix-grid .card-large{
  grid-row:span 2;
  display:flex;
  flex-direction:column;
  gap:16px;
  padding:30px;
}
.mix-grid .card-large .media{
  border-radius:var(--r-img);
  overflow:hidden;
  aspect-ratio:16/10;
  border:1px solid var(--line);
}
.mix-grid .card-large .media img{width:100%;height:100%;object-fit:cover;}
.mini-card{display:flex;gap:16px;align-items:flex-start;}
.mini-card .ico{
  flex:0 0 auto;
  width:46px;
  height:46px;
  border-radius:14px;
  display:grid;
  place-items:center;
  color:var(--cyan);
  background:rgba(38,224,200,.12);
  border:1px solid rgba(38,224,200,.26);
  font-size:17px;
}
.mini-card h3{font-size:17px;margin-bottom:8px;}
.mini-card p{font-size:14.5px;}

/* ============ NOTE LIST ============ */
.note-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
.note-item{
  display:flex;
  gap:16px;
  align-items:flex-start;
  padding:20px 22px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  transition:border-color .22s ease,transform .22s ease;
}
.note-item:hover{border-color:rgba(255,122,89,.35);transform:translateY(-2px);}
.note-item .nidx{
  font-variant-numeric:tabular-nums;
  font-size:14px;
  font-weight:700;
  color:var(--warm);
  letter-spacing:1px;
}
.note-item h4{font-size:16px;margin-bottom:6px;}
.note-item p{font-size:14.5px;color:var(--text-2);}

/* ============ FAQ ============ */
.faq-grid{
  display:grid;
  grid-template-columns:260px 1fr;
  gap:48px;
  align-items:start;
}
.faq-side h2{font-size:clamp(22px,2.8vw,30px);margin-bottom:14px;}
.faq-side p{color:var(--text-3);font-size:14.5px;}
.faq-side .side-cta{margin-top:22px;}
.faq-list{display:grid;gap:14px;}
.faq-item{
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  overflow:hidden;
  transition:border-color .22s ease,background .22s ease;
}
.faq-item.open{border-color:rgba(38,224,200,.4);background:var(--glass-strong);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  gap:16px;
  padding:20px 22px;
  text-align:left;
  color:var(--text);
  font-size:16px;
  font-weight:600;
}
.faq-idx{
  font-variant-numeric:tabular-nums;
  font-size:14px;
  font-weight:700;
  color:var(--cyan);
  letter-spacing:1px;
}
.faq-text{flex:1;}
.faq-icon{
  flex:0 0 auto;
  width:26px;
  height:26px;
  border-radius:999px;
  display:grid;
  place-items:center;
  font-size:12px;
  color:var(--cyan);
  border:1px solid rgba(38,224,200,.4);
  transition:transform .3s ease,background .3s ease;
}
.faq-item.open .faq-icon{transform:rotate(135deg);background:rgba(38,224,200,.16);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
}
.faq-a-inner{
  padding:0 22px 22px 62px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
}

/* ============ CTA BAND ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:24px;
  border:1px solid rgba(38,224,200,.28);
  background:
    radial-gradient(620px 300px at 12% 20%, rgba(38,224,200,.18), transparent 70%),
    radial-gradient(520px 300px at 90% 80%, rgba(30,107,255,.22), transparent 72%),
    rgba(255,255,255,.045);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  padding:52px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,3vw,32px);margin-bottom:12px;}
.cta-band p{color:var(--text-2);max-width:620px;}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ FOOTER ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,21,36,.6),rgba(7,11,20,.98));
  padding:64px 0 28px;
  margin-top:24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1.2fr 1.2fr;
  gap:36px;
}
.footer-brand p{color:var(--text-3);font-size:14px;margin-top:16px;line-height:1.9;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text);}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{color:var(--text-3);font-size:14px;}
.footer-col a:hover{color:var(--cyan);}
.footer-col p{color:var(--text-3);font-size:14px;line-height:1.9;}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  color:var(--text-3);
  font-size:13px;
  font-variant-numeric:tabular-nums;
}

/* ============ FLOAT CTA ============ */
.float-cta{
  position:fixed;
  right:26px;
  bottom:26px;
  z-index:70;
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:15px 24px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  color:#04121A;
  background:linear-gradient(135deg,var(--cyan),var(--brand));
  box-shadow:var(--shadow-glow);
  transition:padding .35s ease,gap .35s ease,transform .25s ease,box-shadow .25s ease;
}
.float-cta:hover{color:#04121A;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(38,224,200,.75),0 16px 42px rgba(38,224,200,.45);}
.float-cta .fc-label{
  white-space:nowrap;
  max-width:180px;
  overflow:hidden;
  transition:max-width .35s ease,opacity .3s ease;
}
.float-cta.collapsed{padding:15px 16px;gap:0;}
.float-cta.collapsed .fc-label{max-width:0;opacity:0;}
.mobile-bar{display:none;}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .section{padding:72px 0;}
  .split{gap:38px;}
  .faq-grid{grid-template-columns:1fr;gap:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .mix-grid{grid-template-columns:1fr 1fr;}
  .mix-grid .card-large{grid-column:span 2;grid-row:auto;}
}
@media (max-width:768px){
  body{padding-bottom:104px;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .hero-inner{padding:52px 0 44px;}
  .hero-sub{font-size:15.5px;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:34px;}
  .brand-actions .link-consult{display:none;}
  .channel-row{gap:22px;}
  .split{grid-template-columns:1fr;gap:26px;padding:32px 0;}
  .split.reverse .split-media{order:0;}
  .stat-bar{grid-template-columns:repeat(2,minmax(0,1fr));}
  .note-list{grid-template-columns:1fr;}
  .mix-grid{grid-template-columns:1fr;}
  .mix-grid .card-large{grid-column:auto;}
  .cta-band{padding:34px 24px;flex-direction:column;align-items:flex-start;}
  .faq-a-inner{padding:0 20px 20px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .float-cta{display:none;}
  .mobile-bar{
    display:flex;
    position:fixed;
    left:12px;
    right:12px;
    bottom:12px;
    z-index:80;
    gap:10px;
    padding:10px;
    border-radius:18px;
    background:rgba(12,21,36,.92);
    -webkit-backdrop-filter:blur(14px) saturate(140%);
    backdrop-filter:blur(14px) saturate(140%);
    border:1px solid var(--line);
    box-shadow:0 18px 40px rgba(3,8,20,.6);
  }
  .mobile-bar .btn{flex:1;padding:12px 10px;font-size:14px;}
}
@media (max-width:520px){
  .logo-text{font-size:18px;}
  .brand-row{padding:12px 0;}
  .hero-stats{grid-template-columns:1fr 1fr;}
  .stat-bar{grid-template-columns:1fr;}
  .cta-band h2{font-size:21px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:380px){
  .btn{padding:12px 18px;font-size:14px;}
  .hero-inner h1{font-size:28px;}
}

/* roulang page: category3 */
:root{
  --bg-0:#070B14;
  --bg-1:#0C1524;
  --bg-2:#111C2F;
  --brand:#1E6BFF;
  --brand-soft:rgba(30,107,255,.16);
  --glow:#26E0C8;
  --glow-soft:rgba(38,224,200,.14);
  --warm:#FF7A59;
  --warm-soft:rgba(255,122,89,.14);
  --text:#E9EFFA;
  --text-2:#A8B4C8;
  --text-3:#6E7C93;
  --border:rgba(255,255,255,.10);
  --border-strong:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.045);
  --glass-2:rgba(255,255,255,.075);
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --shadow-card:0 18px 44px rgba(3,8,20,.55);
  --shadow-glow:0 0 0 1px rgba(38,224,200,.5),0 10px 30px rgba(38,224,200,.28);
  --container:1240px;
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg-0);
  padding-bottom:88px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(680px 420px at 12% -6%, rgba(38,224,200,.10), transparent 62%),
    radial-gradient(720px 460px at 92% 4%, rgba(30,107,255,.12), transparent 66%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border-radius:var(--r-md)}
a{color:inherit;text-decoration:none;transition:color .22s,border-color .22s,background .22s,opacity .22s}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:.01em}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
::selection{background:rgba(38,224,200,.28);color:#fff}
:focus-visible{outline:2px solid var(--glow);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-weight:600;font-size:15px;line-height:1;
  padding:14px 26px;border-radius:999px;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform .22s,box-shadow .22s,background .22s,border-color .22s,color .22s;
}
.btn i{font-size:14px}
.btn-primary{
  background:var(--brand);color:#fff;
  box-shadow:0 0 0 1px rgba(38,224,200,.5),0 10px 30px rgba(38,224,200,.28);
}
.btn-primary:hover{transform:translateY(-2px);background:#2F79FF;box-shadow:0 0 0 1px rgba(38,224,200,.65),0 16px 38px rgba(38,224,200,.34)}
.btn-primary:active{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(38,224,200,.4),0 8px 18px rgba(38,224,200,.22)}
.btn-ghost{
  background:transparent;color:#CFF7F1;border-color:rgba(38,224,200,.45);
}
.btn-ghost:hover{transform:translateY(-2px);background:var(--glow-soft);border-color:rgba(38,224,200,.75)}
.btn-ghost:active{transform:translateY(-1px)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;filter:saturate(40%);box-shadow:none;cursor:not-allowed;transform:none}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;line-height:1;
  padding:6px 12px;border-radius:999px;
  background:var(--glow-soft);color:#7BF0DF;border:1px solid rgba(38,224,200,.24);
}
.badge-warm{background:var(--warm-soft);color:#FFA891;border-color:rgba(255,122,89,.26)}
.badge-blue{background:var(--brand-soft);color:#9FC2FF;border-color:rgba(30,107,255,.3)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  font-size:13.5px;color:var(--text-2);padding:9px 16px;border-radius:999px;
  background:var(--glass);border:1px solid var(--border);cursor:default;
  transition:background .22s,color .22s,border-color .22s;
}
.tag:hover{background:var(--glass-2);color:var(--text);border-color:var(--border-strong)}
.tag.is-on{background:rgba(38,224,200,.12);color:#7BF0DF;border-color:rgba(38,224,200,.35)}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,11,20,.78);
  backdrop-filter:blur(16px) saturate(150%);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  border-bottom:1px solid var(--border);
}
.site-header.is-scrolled{background:rgba(7,11,20,.94);box-shadow:0 12px 32px rgba(3,8,20,.5)}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px 0 12px}
.logo{display:inline-flex;align-items:center;gap:11px}
.logo-mark{
  width:40px;height:40px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg,#1E6BFF,#26E0C8);
  color:#04101A;font-weight:800;font-size:14.5px;letter-spacing:.02em;
  box-shadow:0 8px 22px rgba(38,224,200,.28);
}
.logo-text{font-size:21px;font-weight:700;color:var(--text);letter-spacing:.01em}
.logo-text span{color:var(--glow)}
.brand-actions{display:flex;align-items:center;gap:16px}
.link-consult{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14.5px;color:var(--text-2);font-weight:500;
}
.link-consult:hover{color:var(--glow)}
.link-consult i{color:var(--glow)}
.channel-row{
  display:flex;align-items:center;gap:6px;
  overflow-x:auto;padding-bottom:8px;scrollbar-width:none;border-top:1px solid rgba(255,255,255,.05);
  padding-top:8px;
}
.channel-row::-webkit-scrollbar{display:none}
.channel{
  position:relative;flex:0 0 auto;
  font-size:15px;font-weight:600;color:var(--text-3);
  padding:9px 16px;border-radius:10px;
  transition:color .22s,background .22s;
}
.channel:hover{color:var(--text);background:var(--glass)}
.channel.active{color:var(--text);background:var(--glass)}
.channel.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,#26E0C8,#1E6BFF);
  box-shadow:0 0 12px rgba(38,224,200,.8);
}

/* ---------- 内页横幅 ---------- */
.page-banner{position:relative;overflow:hidden;border-bottom:1px solid var(--border)}
.page-banner-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(7,11,20,.96) 8%,rgba(7,11,20,.72) 52%,rgba(7,11,20,.9) 100%),url(/assets/images/backpic/back-3.webp);
  background-size:cover;background-position:center;
}
.page-banner-inner{position:relative;z-index:1;padding:64px 0 60px;max-width:820px}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13.5px;color:var(--text-3);margin-bottom:20px}
.breadcrumb a:hover{color:var(--glow)}
.breadcrumb i{font-size:10px;color:var(--text-3)}
.breadcrumb .current{color:var(--text-2)}
.page-banner h1{
  font-size:clamp(30px,5.2vw,54px);
  line-height:1.2;margin-bottom:18px;
}
.page-banner h1 em{font-style:normal;color:var(--glow);text-shadow:0 0 26px rgba(38,224,200,.4)}
.page-banner .banner-lead{font-size:17px;color:var(--text-2);max-width:680px;margin-bottom:26px}
.banner-facts{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 问答主体 ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,1fr) 356px;gap:32px;align-items:start}
.qa-list{display:flex;flex-direction:column;gap:16px}
.qa-item{
  background:var(--glass);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  padding:24px 26px;
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  position:relative;
  overflow:hidden;
  transition:transform .25s,border-color .25s,background .25s;
}
.qa-item::before{
  content:"";position:absolute;left:0;top:0;height:1px;left:0;right:0;
  background:linear-gradient(90deg,rgba(38,224,200,.55),transparent 60%);
}
.qa-item:hover{transform:translateY(-2px);border-color:rgba(38,224,200,.28);background:var(--glass-2)}
.qa-num{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--glow);
  margin-bottom:12px;
}
.qa-num span{
  display:inline-grid;place-items:center;min-width:26px;height:26px;padding:0 8px;border-radius:8px;
  background:rgba(38,224,200,.12);border:1px solid rgba(38,224,200,.28);
}
.qa-item h3{font-size:19px;margin-bottom:12px;color:var(--text)}
.qa-item p{font-size:15px;color:var(--text-2);line-height:1.85}
.qa-item p strong{color:var(--text);font-weight:600}

/* ---------- 侧栏联系卡 ---------- */
.side-stack{display:flex;flex-direction:column;gap:18px;position:sticky;top:112px}
.contact-card{
  background:linear-gradient(160deg,rgba(30,107,255,.14),rgba(255,255,255,.04));
  border:1px solid var(--border-strong);
  border-radius:var(--r-lg);
  padding:26px;
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.contact-card h3{font-size:19px;margin-bottom:10px}
.contact-card > p{font-size:14.5px;color:var(--text-2)}
.contact-list{margin:18px 0 20px;display:flex;flex-direction:column;gap:12px}
.contact-list li{display:flex;gap:11px;font-size:14px;color:var(--text-2);line-height:1.7}
.contact-list i{color:var(--glow);margin-top:5px;font-size:13px}
.contact-note{
  margin-top:16px;font-size:12.8px;color:var(--text-3);
  border-top:1px dashed var(--border);padding-top:14px;line-height:1.75;
}
.side-mini{
  background:var(--glass);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--shadow-card);
}
.side-mini h4{font-size:15.5px;margin-bottom:12px;color:var(--text)}
.side-mini ul{display:flex;flex-direction:column;gap:9px}
.side-mini li{font-size:13.5px;color:var(--text-2);display:flex;gap:9px;line-height:1.65}
.side-mini li i{color:var(--glow);font-size:11px;margin-top:8px}
.side-title{font-size:13px;letter-spacing:.12em;color:var(--text-3);font-weight:700;margin-bottom:14px}

/* ---------- 场景图文 ---------- */
.scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.scene-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-card)}
.scene-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11;border-radius:0}
.scene-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.05),rgba(7,11,20,.55));
}
.scene-media .scene-badge{position:absolute;left:18px;bottom:18px;z-index:2}
.scene-body h2{font-size:clamp(24px,3.4vw,38px);margin-bottom:16px}
.scene-body > p{color:var(--text-2);font-size:16px}
.scene-list{margin-top:22px;display:flex;flex-direction:column;gap:14px}
.scene-list li{
  display:flex;gap:13px;font-size:15px;color:var(--text-2);
  padding:15px 18px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--border);
}
.scene-list li i{color:var(--glow);margin-top:6px;font-size:13px}
.scene-list li b{color:var(--text);font-weight:600}

/* ---------- 步骤时间轴 ---------- */
.steps{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;
  position:relative;margin-top:44px;
}
.steps::before{
  content:"";position:absolute;top:15px;left:4%;right:4%;height:1px;
  background:linear-gradient(90deg,rgba(38,224,200,.06),rgba(38,224,200,.55),rgba(30,107,255,.5),rgba(38,224,200,.06));
}
.step{position:relative;padding-top:44px}
.step-dot{
  position:absolute;top:5px;left:0;
  width:21px;height:21px;border-radius:50%;
  background:var(--bg-0);border:2px solid var(--glow);
  box-shadow:0 0 0 5px rgba(38,224,200,.12),0 0 18px rgba(38,224,200,.55);
}
.step:nth-child(4) .step-dot{border-color:var(--warm);box-shadow:0 0 0 5px rgba(255,122,89,.12),0 0 18px rgba(255,122,89,.5)}
.step h3{font-size:17.5px;margin-bottom:10px}
.step p{font-size:14.5px;color:var(--text-2)}
.step-index{font-size:12.5px;color:var(--text-3);letter-spacing:.14em;font-weight:700;margin-bottom:8px;display:block}

/* ---------- 数据条 ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  background:var(--glass);border:1px solid var(--border);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-card);
}
.metric{padding:28px 24px;border-right:1px solid var(--border)}
.metric:last-child{border-right:none}
.metric strong{
  display:block;font-size:30px;font-weight:700;line-height:1.1;color:var(--glow);
  font-variant-numeric:tabular-nums;letter-spacing:.01em;
}
.metric span{display:block;font-size:14px;color:var(--text-2);margin-top:8px}
.metric em{display:block;font-size:12.5px;color:var(--text-3);font-style:normal;margin-top:4px}

/* ---------- FAQ 折叠 ---------- */
.faq-acc{display:flex;flex-direction:column;gap:14px;margin-top:36px}
.faq-item{
  background:var(--glass);border:1px solid var(--border);border-radius:var(--r-lg);
  overflow:hidden;transition:border-color .25s,background .25s;
}
.faq-item[open]{border-color:rgba(38,224,200,.3);background:var(--glass-2)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  padding:20px 24px;font-size:16.5px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:focus-visible{outline:2px solid var(--glow);outline-offset:-3px}
.faq-q-index{font-size:13px;font-weight:700;color:var(--glow);letter-spacing:.1em;font-variant-numeric:tabular-nums;min-width:30px}
.faq-icon{
  margin-left:auto;width:28px;height:28px;flex:0 0 28px;border-radius:9px;
  display:grid;place-items:center;font-size:12px;
  background:rgba(38,224,200,.12);color:var(--glow);border:1px solid rgba(38,224,200,.24);
  transition:transform .3s,background .3s;
}
.faq-item[open] .faq-icon{transform:rotate(135deg);background:rgba(38,224,200,.22)}
.faq-answer{padding:0 24px 22px 70px;color:var(--text-2);font-size:15px;line-height:1.85}
.faq-answer p{margin-bottom:10px}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:linear-gradient(120deg,rgba(30,107,255,.18),rgba(38,224,200,.1));
  border:1px solid var(--border-strong);
  border-radius:var(--r-lg);
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:10px}
.cta-band p{font-size:15px;color:var(--text-2);max-width:600px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--border);background:var(--bg-1);margin-top:24px;position:relative;z-index:1}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1.3fr 1.2fr;gap:36px;
  padding:64px 0 44px;
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:340px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text)}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col li a{font-size:14px;color:var(--text-2)}
.footer-col li a:hover{color:var(--glow)}
.footer-col p{font-size:13.5px;color:var(--text-3);line-height:1.8}
.footer-bottom{
  border-top:1px solid var(--border);padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:90;
  display:flex;align-items:center;gap:10px;
}
.float-main{
  display:inline-flex;align-items:center;gap:9px;
  background:var(--brand);color:#fff;font-weight:600;font-size:15px;
  padding:14px 24px;border-radius:999px;
  box-shadow:0 0 0 1px rgba(38,224,200,.5),0 10px 30px rgba(38,224,200,.3);
  transition:transform .22s,box-shadow .22s,background .22s;
}
.float-main:hover{transform:translateY(-2px);background:#2F79FF;box-shadow:0 0 0 1px rgba(38,224,200,.7),0 16px 36px rgba(38,224,200,.4)}
.float-sub{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14px;font-weight:600;color:var(--text-2);
  padding:13px 20px;border-radius:999px;
  background:rgba(12,21,36,.9);border:1px solid var(--border-strong);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.float-sub:hover{color:var(--glow);border-color:rgba(38,224,200,.4)}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .faq-layout{grid-template-columns:minmax(0,1fr) 320px;gap:26px}
}
@media (max-width:1024px){
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .faq-layout{grid-template-columns:1fr}
  .side-stack{position:static}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
  .steps::before{display:none}
  .metric{padding:24px 20px}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .metric:nth-child(2){border-right:none}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--border)}
  .scene-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  body{padding-bottom:82px}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .brand-row{padding:14px 0 10px}
  .brand-actions .link-consult{display:none}
  .logo-text{font-size:19px}
  .logo-mark{width:36px;height:36px;border-radius:12px;font-size:13px}
  .page-banner-inner{padding:44px 0 40px}
  .page-banner .banner-lead{font-size:15.5px}
  .qa-item{padding:20px}
  .qa-item h3{font-size:17.5px}
  .faq-answer{padding:0 20px 20px 20px}
  .faq-item summary{padding:17px 18px;font-size:15.5px;gap:12px}
  .cta-band{padding:28px 24px;flex-direction:column;align-items:flex-start;gap:22px}
  .metrics{grid-template-columns:1fr}
  .metric{border-right:none;border-bottom:1px solid var(--border)}
  .metric:last-child{border-bottom:none}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding:48px 0 32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .float-cta{
    left:0;right:0;bottom:0;gap:10px;padding:10px 16px;
    background:rgba(7,11,20,.94);
    border-top:1px solid var(--border);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
  }
  .float-main{flex:1;justify-content:center;padding:13px 18px}
  .float-sub{padding:13px 16px}
}
@media (max-width:560px){
  .steps{grid-template-columns:1fr;gap:22px}
  .step{padding-top:38px}
  .tag{font-size:13px;padding:8px 13px}
  .btn{padding:13px 20px;font-size:14.5px}
  .contact-card{padding:22px}
  .scene-list li{padding:14px}
  .float-sub{display:none}
  .float-main{width:100%}
}
@media (max-width:380px){
  .logo-text{font-size:17.5px}
  .channel{font-size:14px;padding:8px 12px}
  .metrics strong{font-size:26px}
}