/* roulang page: index */
:root{
  --bg:#05080F;
  --panel:#0B111C;
  --card:#0E1524;
  --primary:#2E7BFF;
  --accent:#12E3C2;
  --orange:#FF8A3D;
  --text:#EAF2FF;
  --text-2:#93A6C4;
  --text-3:#5D6E88;
  --ok:#2ED47A;
  --warn:#FFB020;
  --error:#FF5A6A;
  --line:rgba(255,255,255,.09);
  --line-soft:rgba(255,255,255,.06);
  --r-lg:24px;
  --r-md:16px;
  --r-img:14px;
  --r-input:12px;
  --shadow-card:0 1px 0 rgba(255,255,255,.06) inset, 0 24px 60px -30px rgba(2,8,20,.9);
  --shadow-hover:0 1px 0 rgba(255,255,255,.06) inset, 0 24px 60px -30px rgba(2,8,20,.9), 0 0 32px -8px rgba(46,123,255,.45);
  --bs-primary:#2E7BFF;
  --bs-body-bg:#05080F;
  --bs-body-color:#EAF2FF;
  --bs-link-color:#2E7BFF;
  --bs-link-hover-color:#12E3C2;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--primary);text-decoration:none;transition:color .25s ease,transform .25s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4{color:var(--text);margin:0;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,123,255,.45);border-radius:8px;}
.num{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.narrow{max-width:820px;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:80;
  height:72px;
  background:transparent;
  transition:background .3s ease,backdrop-filter .3s ease,border-color .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(11,17,28,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.brand{display:flex;flex-direction:column;line-height:1.1;text-decoration:none;}
.brand-main{
  font-size:19px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--text);
}
.brand-sub{
  font-size:12px;
  letter-spacing:.22em;
  color:var(--accent);
  font-weight:500;
  margin-top:3px;
}
.brand:hover .brand-main{color:var(--accent);}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:72px;
  padding:0 15px;
  font-size:15px;
  color:var(--text-2);
  transition:color .25s ease;
}
.nav-link i{display:none;font-size:12px;color:var(--text-3);}
.nav-link::after{
  content:"";
  position:absolute;
  left:15px;right:15px;bottom:17px;
  height:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .28s ease;
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--text);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.nav-link.active::before{
  content:"";
  position:absolute;
  left:50%;margin-left:-2px;bottom:11px;
  width:4px;height:4px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 8px rgba(18,227,194,.9);
}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.04);
  color:var(--text);
  font-size:17px;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:border-color .25s ease,color .25s ease;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--accent);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  border-radius:999px;
  font-weight:600;
  font-size:15px;
  line-height:1;
  padding:13px 26px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#2E7BFF 0%,#12E3C2 100%);
  color:#04101F;
  box-shadow:0 0 0 1px rgba(46,123,255,.55),0 10px 30px -10px rgba(46,123,255,.75);
}
.btn-primary:hover{
  color:#04101F;
  transform:translateY(-2px);
  filter:brightness(1.06);
  box-shadow:0 0 0 1px rgba(46,123,255,.7),0 16px 42px -10px rgba(46,123,255,.95);
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(46,123,255,.5),0 6px 16px -8px rgba(46,123,255,.6);}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,.18);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:var(--primary);
  background:rgba(46,123,255,.08);
  color:var(--text);
}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-lg{padding:15px 32px;font-size:16px;}
.btn-block{width:100%;}

/* ---------- 徽章 / 标签 ---------- */
.badge-soft{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  font-weight:500;
  background:rgba(18,227,194,.15);
  color:var(--accent);
  border:1px solid rgba(18,227,194,.22);
}
.badge-blue{
  background:rgba(46,123,255,.15);
  color:#8CBAFF;
  border-color:rgba(46,123,255,.28);
}
.badge-orange{
  background:rgba(255,138,61,.14);
  color:var(--orange);
  border-color:rgba(255,138,61,.28);
}

/* ---------- 玻璃卡 ---------- */
.glass-card{
  position:relative;
  background:rgba(255,255,255,.045);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px;
  box-shadow:var(--shadow-card);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
  overflow:hidden;
}
.glass-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:rgba(255,255,255,.12);
}
.glass-card::after{
  content:"";
  position:absolute;
  top:-40%;right:-30%;
  width:260px;height:260px;
  background:radial-gradient(circle,rgba(46,123,255,.28) 0%,rgba(46,123,255,0) 70%);
  opacity:0;
  transition:opacity .35s ease;
  pointer-events:none;
}
.glass-card:hover{
  transform:translateY(-4px);
  border-color:rgba(46,123,255,.4);
  box-shadow:var(--shadow-hover);
}
.glass-card:hover::after{opacity:.45;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:150px 0 96px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  top:-18%;
  left:22%;
  width:60vw;
  height:60vw;
  max-width:900px;
  max-height:900px;
  background:radial-gradient(circle,rgba(46,123,255,.12) 0%,rgba(46,123,255,0) 68%);
  filter:blur(48px);
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(5,8,15,.86),rgba(5,8,15,.96)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  opacity:.5;
  pointer-events:none;
  z-index:-1;
}
.hero-inner{position:relative;z-index:2;}
.hero-title{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.2;
  font-weight:700;
  letter-spacing:-.01em;
  margin:22px 0 20px;
}
.hero-title em{
  font-style:normal;
  background:linear-gradient(120deg,#2E7BFF,#12E3C2);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  font-size:17px;
  line-height:1.8;
  color:var(--text-2);
  max-width:560px;
  margin-bottom:30px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  border-top:1px solid var(--line-soft);
  padding-top:22px;
}
.hero-stats li{
  padding:0 26px;
  border-left:1px solid var(--line-soft);
}
.hero-stats li:first-child{padding-left:0;border-left:0;}
.stat-num{
  display:block;
  font-size:clamp(24px,3vw,36px);
  font-weight:600;
  color:var(--accent);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.stat-label{
  display:block;
  font-size:13px;
  color:var(--text-3);
  margin-top:4px;
}
.hero-card{padding:18px;}
.hero-card-img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid var(--line);
  margin-bottom:20px;
}
.hero-card-title{
  font-size:18px;
  font-weight:600;
  margin-bottom:14px;
}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:11px 0;
  border-bottom:1px solid var(--line-soft);
  font-size:14.5px;
  color:var(--text-2);
}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.check-list i{
  color:var(--accent);
  font-size:14px;
  margin-top:5px;
  flex:0 0 auto;
}

/* ---------- 板块 ---------- */
.section{padding:96px 0;position:relative;}
.section-alt{background:var(--panel);}
.section-head{margin-bottom:48px;max-width:760px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.16em;
  color:var(--accent);
  font-weight:500;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:22px;height:1px;
  background:var(--accent);
}
.sec-title{
  font-size:clamp(24px,3vw,36px);
  line-height:1.3;
  font-weight:600;
  position:relative;
  padding-left:18px;
}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;top:.18em;bottom:.18em;
  width:3px;
  border-radius:2px;
  background:linear-gradient(180deg,#2E7BFF,#12E3C2);
}
.sec-desc{
  margin-top:16px;
  color:var(--text-2);
  font-size:16px;
}
.section-head-split{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  max-width:none;
}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14.5px;
  color:var(--accent);
  font-weight:500;
  padding-bottom:6px;
}
.link-more:hover{color:var(--primary);gap:12px;}

/* ---------- 卖点 ---------- */
.feature-big{height:100%;display:flex;flex-direction:column;}
.feature-big img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid var(--line);
  margin-bottom:22px;
}
.feature-big h3{font-size:22px;font-weight:600;margin-bottom:12px;}
.feature-big p{color:var(--text-2);font-size:15.5px;margin-bottom:18px;}
.point-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:12px 0;
  border-top:1px solid var(--line-soft);
  font-size:15px;
  color:var(--text-2);
}
.point-list li strong{color:var(--text);font-weight:600;}
.point-list .dot{
  flex:0 0 auto;
  width:22px;height:22px;
  border-radius:7px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:rgba(46,123,255,.16);
  color:#8CBAFF;
  font-size:11px;
  margin-top:4px;
}
.feature-small h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.feature-small p{color:var(--text-2);font-size:15px;margin-bottom:14px;}
.mini-tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  font-size:12.5px;
  padding:5px 12px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.12);
  color:var(--text-2);
  background:rgba(255,255,255,.03);
}
.feature-icon{
  width:42px;height:42px;
  border-radius:12px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:rgba(18,227,194,.14);
  color:var(--accent);
  font-size:17px;
  margin-bottom:16px;
}

/* ---------- 场景 ---------- */
.scene-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
  padding:34px 0;
  border-bottom:1px solid var(--line-soft);
}
.scene-row:last-child{border-bottom:0;}
.scene-row.reverse .scene-media{order:2;}
.scene-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.scene-text{
  position:relative;
  padding-left:26px;
  border-left:1px solid var(--line);
}
.scene-num{
  font-size:clamp(28px,3.4vw,44px);
  font-weight:600;
  line-height:1;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  margin-bottom:14px;
  letter-spacing:.02em;
}
.scene-text h3{font-size:20px;font-weight:600;margin-bottom:12px;}
.scene-text p{color:var(--text-2);font-size:15.5px;margin-bottom:14px;}
.scene-text ul li{
  position:relative;
  padding-left:18px;
  font-size:14.5px;
  color:var(--text-3);
  margin-bottom:8px;
}
.scene-text ul li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:6px;height:6px;
  background:var(--accent);
  border-radius:2px;
}

/* ---------- 社会认同 ---------- */
.stats-bar{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:rgba(255,255,255,.03);
  overflow:hidden;
  margin-bottom:46px;
  box-shadow:var(--shadow-card);
}
.stats-bar div{
  padding:30px 24px;
  border-right:1px solid var(--line-soft);
}
.stats-bar div:last-child{border-right:0;}
.stats-bar .stat-num{font-size:clamp(26px,3.2vw,40px);}
.quote-card{height:100%;display:flex;flex-direction:column;justify-content:space-between;}
.quote-mark{
  font-size:46px;
  line-height:1;
  color:var(--accent);
  font-weight:700;
  margin-bottom:10px;
}
.quote-card p{color:var(--text-2);font-size:15.5px;margin-bottom:20px;}
.quote-author{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:13px;
  color:var(--text-3);
  border-top:1px solid var(--line-soft);
  padding-top:16px;
}
.quote-avatar{
  width:34px;height:34px;
  border-radius:50%;
  background:linear-gradient(135deg,rgba(46,123,255,.5),rgba(18,227,194,.4));
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  color:#04101F;
  font-weight:600;
  flex:0 0 auto;
}

/* ---------- 最新信息 ---------- */
.news-list{display:flex;flex-direction:column;gap:16px;}
.news-item{
  display:flex;
  gap:22px;
  align-items:stretch;
  padding:18px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:rgba(255,255,255,.035);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.news-item:hover{
  transform:translateY(-3px);
  border-color:rgba(46,123,255,.4);
  box-shadow:var(--shadow-hover);
}
.news-thumb{
  flex:0 0 160px;
  display:block;
}
.news-thumb img{
  width:160px;
  height:100%;
  min-height:104px;
  object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid var(--line);
}
.news-body{
  flex:1;
  min-width:0;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
}
.news-title{
  font-size:18px;
  font-weight:600;
  line-height:1.5;
  margin-bottom:8px;
}
.news-title a{color:var(--text);}
.news-title a:hover{color:var(--accent);}
.news-desc{
  font-size:14.5px;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:14px;
}
.news-meta{
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
}
.news-time{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.news-more{
  margin-left:auto;
  font-size:14px;
  color:var(--text-2);
  display:inline-flex;
  align-items:center;
  gap:7px;
}
.news-more:hover{color:var(--accent);gap:11px;}
.empty-state{
  text-align:center;
  padding:60px 24px;
  border:1px dashed rgba(255,255,255,.14);
  border-radius:var(--r-md);
  background:rgba(255,255,255,.02);
}
.empty-state i{
  font-size:26px;
  color:var(--accent);
  border:1px solid rgba(18,227,194,.4);
  width:58px;height:58px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-bottom:16px;
}
.empty-state p{color:var(--text-2);font-size:14.5px;margin-bottom:18px;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);position:relative;}
.faq-item::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:linear-gradient(180deg,#2E7BFF,#12E3C2);
  opacity:0;
  transition:opacity .3s ease;
  border-radius:2px;
}
.faq-item.open::before{opacity:1;}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  text-align:left;
  padding:22px 4px 22px 16px;
  background:transparent;
  border:0;
  color:var(--text);
  font-size:17px;
  font-weight:600;
  cursor:pointer;
  transition:color .25s ease;
}
.faq-q:hover{color:var(--accent);}
.faq-icon{
  flex:0 0 auto;
  width:26px;height:26px;
  border-radius:8px;
  border:1px solid var(--line);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  color:var(--accent);
  transition:transform .3s ease,border-color .3s ease;
}
.faq-item.open .faq-icon{transform:rotate(90deg);border-color:rgba(46,123,255,.5);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .38s ease,padding .38s ease;
  padding:0 16px;
}
.faq-item.open .faq-a{max-height:520px;padding:0 16px 22px;}
.faq-a p{color:var(--text-2);font-size:15.5px;line-height:1.9;}

/* ---------- CTA 区块 ---------- */
.cta-band{
  position:relative;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(46,123,255,.14) 0%,rgba(18,227,194,.08) 100%),rgba(14,21,36,.9);
  padding:56px 48px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.cta-band::after{
  content:"";
  position:absolute;
  top:-60%;right:-10%;
  width:420px;height:420px;
  background:radial-gradient(circle,rgba(46,123,255,.28) 0%,rgba(46,123,255,0) 70%);
  pointer-events:none;
}
.cta-band h2{
  font-size:clamp(23px,2.8vw,32px);
  font-weight:600;
  margin-bottom:14px;
  position:relative;
  z-index:2;
}
.cta-band p{
  color:var(--text-2);
  max-width:620px;
  margin-bottom:26px;
  position:relative;
  z-index:2;
}
.cta-band .hero-cta{margin-bottom:0;position:relative;z-index:2;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg);
  border-top:1px solid var(--line);
  padding-top:64px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{color:var(--text-3);font-size:14px;line-height:1.9;max-width:300px;}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:var(--text);
  letter-spacing:.06em;
  margin-bottom:18px;
}
.footer-links li{margin-bottom:11px;}
.footer-links a{
  font-size:14px;
  color:var(--text-2);
  display:inline-flex;
  align-items:center;
  gap:8px;
  transition:color .22s ease,transform .22s ease;
}
.footer-links a:hover{color:var(--primary);transform:translateX(2px);}
.footer-note{color:var(--text-3);font-size:14px;line-height:1.9;}
.footer-note strong{color:var(--text-2);font-weight:500;}
.footer-bottom{
  border-top:1px solid var(--line-soft);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}

/* ---------- 底部固定转化条 ---------- */
.mobile-bar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:70;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:10px 18px calc(10px + env(safe-area-inset-bottom));
  background:rgba(11,17,28,.9);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-top:1px solid rgba(46,123,255,.25);
}
.mobile-bar span{font-size:14.5px;color:var(--text-2);}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .container{padding:0 22px;}
}
@media (max-width:991.98px){
  .section{padding:72px 0;}
  .hero{padding:120px 0 72px;}
  .main-nav{
    position:fixed;
    top:72px;left:0;right:0;bottom:0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:16px 24px 40px;
    background:rgba(11,17,28,.96);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-top:1px solid var(--line-soft);
    opacity:0;
    transform:translateY(-10px);
    pointer-events:none;
    transition:opacity .28s ease,transform .28s ease;
    overflow-y:auto;
  }
  .main-nav.open{opacity:1;transform:none;pointer-events:auto;}
  .nav-link{
    height:56px;
    padding:0 4px;
    font-size:16px;
    justify-content:space-between;
    border-bottom:1px solid var(--line-soft);
  }
  .nav-link::after,.nav-link.active::before{display:none;}
  .nav-link i{display:inline-block;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-sm{display:none;}
  body{padding-bottom:78px;}
  .scene-row{grid-template-columns:1fr;gap:26px;}
  .scene-row.reverse .scene-media{order:0;}
  .stats-bar{grid-template-columns:repeat(2,1fr);}
  .stats-bar div:nth-child(2){border-right:0;}
  .stats-bar div:nth-child(1),
  .stats-bar div:nth-child(2){border-bottom:1px solid var(--line-soft);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .cta-band{padding:40px 26px;}
}
@media (min-width:992px){
  .mobile-bar{
    left:50%;right:auto;bottom:20px;
    transform:translateX(-50%);
    width:560px;
    border-radius:999px;
    border:1px solid rgba(46,123,255,.28);
    padding:10px 12px 10px 26px;
  }
}
@media (max-width:767.98px){
  .section{padding:56px 0;}
  .hero{padding:106px 0 56px;}
  .hero-stats li{padding:0 16px;}
  .hero-cta .btn{width:100%;}
  .news-item{flex-direction:row;gap:14px;padding:14px;}
  .news-thumb{flex:0 0 88px;}
  .news-thumb img{width:88px;height:88px;min-height:0;}
  .news-title{font-size:16px;}
  .news-desc{display:none;}
  .news-more{display:none;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .stats-bar{grid-template-columns:1fr;border-radius:var(--r-md);}
  .stats-bar div{border-right:0;border-bottom:1px solid var(--line-soft);}
  .stats-bar div:last-child{border-bottom:0;}
  .faq-q{font-size:16px;padding-left:14px;}
}
@media (max-width:575.98px){
  .glass-card,.news-item{backdrop-filter:none;-webkit-backdrop-filter:none;}
  .site-header.scrolled{backdrop-filter:none;-webkit-backdrop-filter:none;background:rgba(11,17,28,.94);}
  .mobile-bar{backdrop-filter:none;-webkit-backdrop-filter:none;background:rgba(11,17,28,.96);}
  .hero-stats{flex-direction:column;gap:16px;}
  .hero-stats li{padding:0;border-left:0;border-bottom:1px solid var(--line-soft);padding-bottom:14px;}
  .hero-stats li:last-child{border-bottom:0;padding-bottom:0;}
  .cta-band{padding:32px 20px;}
}

/* roulang page: article */
:root{
  --bg:#05080F;
  --bg-2:#0B111C;
  --card:#0E1524;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.18);
  --primary:#2E7BFF;
  --accent:#12E3C2;
  --warm:#FF8A3D;
  --text:#EAF2FF;
  --text-body:#D6E2F5;
  --text-2:#93A6C4;
  --text-3:#5D6E88;
  --ok:#2ED47A;
  --warn:#FFB020;
  --err:#FF5A6A;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:14px;
  --r-input:12px;
  --shadow-card:0 1px 0 rgba(255,255,255,.06) inset,0 24px 60px -30px rgba(2,8,20,.9);
  --shadow-hover:0 1px 0 rgba(255,255,255,.06) inset,0 24px 60px -30px rgba(2,8,20,.9),0 0 32px -8px rgba(46,123,255,.45);
  --grad:linear-gradient(135deg,#2E7BFF,#12E3C2);
  --section-y:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",sans-serif;
  font-size:16px;
  font-weight:400;
  line-height:1.8;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .22s ease}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--text)}
p{margin:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num,.meta-item time{font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1px solid transparent;font-weight:600;font-size:15px;
  padding:12px 24px;line-height:1;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease,filter .22s ease;
  text-decoration:none;
}
.btn-primary{
  background:var(--grad);color:#04101F;
  box-shadow:0 0 0 1px rgba(46,123,255,.55),0 10px 30px -10px rgba(46,123,255,.75);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(46,123,255,.7),0 14px 40px -10px rgba(46,123,255,.9)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(46,123,255,.5),0 6px 18px -10px rgba(46,123,255,.6)}
.btn-outline{background:transparent;border-color:rgba(255,255,255,.18);color:var(--text)}
.btn-outline:hover{border-color:var(--primary);background:rgba(46,123,255,.08);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,123,255,.45)}
.btn:disabled{opacity:.45;box-shadow:none;filter:none;cursor:not-allowed}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;height:72px;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.is-scrolled{
  background:rgba(11,17,28,.72);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:inline-flex;flex-direction:column;line-height:1.12;text-decoration:none}
.brand-main{font-size:16px;font-weight:700;letter-spacing:.16em;color:var(--text)}
.brand-sub{font-size:11px;letter-spacing:.24em;color:var(--text-3);margin-top:2px}
.main-nav{display:flex;align-items:center;gap:30px}
.nav-link{
  position:relative;padding:6px 0;font-size:15px;color:var(--text-2);
  display:inline-flex;align-items:center;gap:8px;white-space:nowrap;
}
.nav-link i{display:none;font-size:12px;color:var(--text-3)}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;
  background:var(--primary);border-radius:2px;transition:width .28s ease;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--text)}
.nav-link.active::after{width:100%}
.nav-link.active::before{
  content:"";position:absolute;left:50%;bottom:-9px;width:4px;height:4px;margin-left:-2px;
  border-radius:50%;background:var(--accent);
}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;align-items:center;justify-content:center;width:42px;height:42px;
  border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text);cursor:pointer;transition:.22s;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary)}
.nav-toggle:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,123,255,.45)}

/* ---------- 内页横幅 ---------- */
.page-banner{position:relative;padding:150px 0 60px;overflow:hidden;border-bottom:1px solid var(--line)}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.24;
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(60vw 60vw at 28% 4%,rgba(46,123,255,.20),transparent 62%),
             linear-gradient(180deg,rgba(5,8,15,.62),rgba(5,8,15,.94) 76%,#05080F);
}
.page-banner .container{position:relative;z-index:2}

.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--primary)}
.crumb-sep{color:var(--text-3);opacity:.7}
.crumb-current{color:var(--text);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.article-head{margin-top:26px;max-width:900px}
.head-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
  background:rgba(18,227,194,.15);color:var(--accent);font-size:13px;font-weight:500;
}
.badge-line{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
  border:1px solid var(--line-strong);color:var(--text-2);font-size:13px;
}
.article-head h1{
  font-size:clamp(30px,4.4vw,52px);line-height:1.2;font-weight:700;letter-spacing:-.01em;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:12px 22px;margin-top:26px;padding-top:20px;
  border-top:1px solid var(--line);font-size:13.5px;color:var(--text-3);
}
.meta-item{display:inline-flex;align-items:center;gap:8px}
.meta-item i{color:var(--primary);font-size:13px}

/* ---------- 正文布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,820px) 220px;gap:64px;
  justify-content:center;align-items:start;padding:88px 0 var(--section-y);
}
.article-body{max-width:820px;font-size:17px;line-height:1.9;color:var(--text-body)}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;padding-left:16px;margin:44px 0 16px;
  font-size:clamp(22px,2.6vw,30px);line-height:1.3;font-weight:600;color:var(--text);
  scroll-margin-top:104px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.38em;width:3px;height:30px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
}
.article-body h3{margin:32px 0 12px;font-size:20px;font-weight:600;color:var(--text);scroll-margin-top:104px}
.article-body h4{margin:26px 0 10px;font-size:17px;font-weight:600;color:var(--text)}
.article-body a{color:var(--accent);border-bottom:1px solid rgba(18,227,194,.35)}
.article-body a:hover{color:#8CF3E1}
.article-body strong{color:var(--text);font-weight:600}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:0}
.article-body ul{list-style:none}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:1px;background:var(--accent);
}
.article-body ol{padding-left:22px}
.article-body ol li{margin-bottom:10px}
.article-body blockquote{
  margin:28px 0;padding:20px 22px;border-left:3px solid var(--accent);border-radius:0 14px 14px 0;
  background:rgba(255,255,255,.045);color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  width:100%;height:auto;border-radius:12px;border:1px solid var(--line);margin:28px auto;
}
.article-body figure{margin:28px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--text-3);margin-top:10px}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;display:table;
}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.article-body thead th{background:rgba(46,123,255,.10);color:var(--text);font-weight:600}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.028)}
.article-body code{
  background:rgba(46,123,255,.14);color:var(--accent);padding:2px 7px;border-radius:6px;font-size:14px;
}
.article-body pre{
  background:var(--bg-2);border:1px solid var(--line);border-radius:14px;padding:18px;
  overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

/* ---------- 目录 ---------- */
.article-toc{position:sticky;top:104px}
.toc-title{font-size:12px;letter-spacing:.2em;color:var(--text-3);margin-bottom:14px;font-weight:500}
.toc-list{list-style:none;margin:0;padding:0;border-left:1px solid var(--line)}
.toc-list a{
  display:block;margin-left:-1px;padding:9px 0 9px 16px;font-size:14px;line-height:1.5;
  color:var(--text-2);border-left:2px solid transparent;transition:.22s ease;
}
.toc-list a:hover{color:var(--text)}
.toc-list a.is-active{
  color:var(--primary);border-left-color:var(--primary);
  background:linear-gradient(90deg,rgba(46,123,255,.14),transparent);
}

/* ---------- 空态 ---------- */
.empty-state{
  max-width:600px;margin:0 auto;padding:64px 30px;text-align:center;
  background:rgba(255,255,255,.045);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-card);
}
.empty-state i{font-size:34px;color:var(--accent)}
.empty-state h2{margin:20px 0 12px;font-size:22px}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:26px}

/* ---------- 继续阅读 ---------- */
.pn-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:64px;max-width:820px;margin-left:auto;margin-right:auto}
.pn-card{
  display:flex;flex-direction:column;gap:10px;padding:22px 24px;border-radius:var(--r-md);
  background:rgba(255,255,255,.045);border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.pn-card:hover{transform:translateY(-4px);border-color:rgba(46,123,255,.4);box-shadow:var(--shadow-hover)}
.pn-label{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.pn-label i{color:var(--primary);font-size:12px}
.pn-title{font-size:17px;font-weight:600;color:var(--text);line-height:1.5}

/* ---------- 板块 ---------- */
.section{padding:var(--section-y) 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.3}
.section-head .eyebrow{font-size:13px;letter-spacing:.18em;color:var(--accent);margin-bottom:10px}
.section-link{font-size:15px;color:var(--text-2);display:inline-flex;align-items:center;gap:8px}
.section-link:hover{color:var(--primary)}
.section-link i{font-size:12px}

.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  display:block;overflow:hidden;border-radius:var(--r-md);background:var(--card);
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(46,123,255,.4);box-shadow:var(--shadow-hover)}
.rel-thumb{aspect-ratio:16/10;overflow:hidden;background:rgba(18,227,194,.06)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.05)}
.rel-body{padding:20px 22px 24px}
.rel-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-3);margin-bottom:10px}
.rel-meta .tag{color:var(--accent)}
.rel-title{font-size:18px;font-weight:600;line-height:1.5;color:var(--text);margin-bottom:10px}
.rel-desc{
  font-size:14px;color:var(--text-2);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}

.back-row{display:flex;justify-content:center;margin-top:44px}

/* ---------- CTA ---------- */
.cta-block{
  position:relative;overflow:hidden;margin-top:var(--section-y);
  padding:56px;border-radius:var(--r-lg);border:1px solid var(--line);
  background:radial-gradient(48vw 48vw at 10% -10%,rgba(46,123,255,.24),transparent 60%),var(--bg-2);
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;
}
.cta-block h2{font-size:clamp(22px,2.8vw,32px);line-height:1.35;margin-bottom:12px}
.cta-block p{color:var(--text-2);font-size:15px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:var(--section-y);background:#070C15;border-top:1px solid var(--line);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.4fr;gap:40px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--text-2);line-height:1.9;max-width:340px}
.footer-title{font-size:14px;font-weight:600;color:var(--text);letter-spacing:.08em;margin-bottom:16px}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:10px}
.footer-links a{display:inline-block;font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--primary);transform:translateX(2px)}
.footer-note{font-size:13px;color:var(--text-3);line-height:1.95}
.footer-note strong{color:var(--text-2);font-weight:500}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:56px;
  padding:22px 0;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}

/* ---------- 移动端底部转化条 ---------- */
.convert-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:900;display:none;
  align-items:center;justify-content:space-between;gap:16px;
  padding:10px 20px calc(10px + env(safe-area-inset-bottom));
  background:rgba(11,17,28,.84);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border-top:1px solid rgba(46,123,255,.25);
}
.convert-bar span{font-size:14px;color:var(--text-2);line-height:1.4}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,820px);gap:0;padding:72px 0 var(--section-y)}
  .article-toc{display:none}
}
@media (max-width:991.98px){
  :root{--section-y:72px}
  body{padding-bottom:80px}
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:fixed;top:72px;left:0;right:0;bottom:0;flex-direction:column;align-items:stretch;gap:0;
    padding:12px 24px 40px;background:rgba(5,8,15,.97);
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    opacity:0;transform:translateY(-12px);pointer-events:none;overflow-y:auto;
    transition:opacity .28s ease,transform .28s ease;
  }
  .main-nav.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
  .nav-link{height:56px;justify-content:space-between;font-size:17px;color:var(--text);border-bottom:1px solid var(--line)}
  .nav-link i{display:block}
  .nav-link::after,.nav-link::before{display:none}
  .nav-link.active{color:var(--primary)}
  .page-banner{padding:120px 0 48px}
  .article-layout{padding:56px 0 var(--section-y)}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-block{grid-template-columns:1fr;padding:40px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .convert-bar{display:flex}
}
@media (max-width:767.98px){
  .related-grid{grid-template-columns:1fr}
  .pn-grid{grid-template-columns:1fr;margin-top:48px}
  .footer-grid{grid-template-columns:1fr}
  .article-body{font-size:16.5px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
}
@media (max-width:575.98px){
  .container{padding:0 18px}
  .header-actions .btn{display:none}
  .article-meta{gap:10px 16px;font-size:13px}
  .crumb-current{max-width:220px}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category1 */
:root{
  --bg:#05080F;
  --panel:#0B111C;
  --card:#0E1524;
  --primary:#2E7BFF;
  --accent:#12E3C2;
  --warn:#FF8A3D;
  --ok:#2ED47A;
  --danger:#FF5A6A;
  --text:#EAF2FF;
  --text-2:#93A6C4;
  --text-3:#5D6E88;
  --border:rgba(255,255,255,.09);
  --border-2:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.045);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:14px;
  --r-input:12px;
  --shadow-card:0 1px 0 rgba(255,255,255,.06) inset, 0 24px 60px -30px rgba(2,8,20,.9);
  --shadow-hover:0 1px 0 rgba(255,255,255,.06) inset, 0 24px 60px -30px rgba(2,8,20,.9), 0 0 32px -8px rgba(46,123,255,.45);
  --glow:0 0 0 1px rgba(46,123,255,.55), 0 10px 30px -10px rgba(46,123,255,.75);
  --sec:96px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;}
::selection{background:rgba(46,123,255,.35);color:#fff;}

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

/* ---------- 通用 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--accent);
  text-transform:uppercase;margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);opacity:.8;}
.section{padding:var(--sec) 0;}
.section-sm{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{
  font-size:clamp(24px,3vw,36px);line-height:1.3;font-weight:600;letter-spacing:-.01em;
  position:relative;padding-left:18px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:1.05em;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
}
.section-head p{margin-top:16px;color:var(--text-2);font-size:16px;line-height:1.85;}
.title-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.text-link{font-size:14px;color:var(--accent);display:inline-flex;align-items:center;gap:8px;transition:gap .25s ease,color .25s ease;}
.text-link:hover{color:var(--text);gap:12px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:999px;font-weight:600;font-size:15px;line-height:1;
  padding:14px 26px;border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#04121F;box-shadow:var(--glow);
}
.btn-primary:hover{
  transform:translateY(-2px);filter:brightness(1.06);
  box-shadow:0 0 0 1px rgba(46,123,255,.7), 0 14px 40px -10px rgba(46,123,255,.9);
  color:#04121F;
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(46,123,255,.55),0 6px 18px -10px rgba(46,123,255,.7);}
.btn-ghost{
  background:transparent;border-color:var(--border-2);color:var(--text);
}
.btn-ghost:hover{
  border-color:rgba(46,123,255,.75);background:rgba(46,123,255,.08);color:var(--text);
  transform:translateY(-2px);
}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,123,255,.45);}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:72px;display:flex;align-items:center;
  background:transparent;
  transition:background .3s ease,backdrop-filter .3s ease,border-color .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(11,17,28,.72);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%;}
.brand{display:flex;flex-direction:column;line-height:1.15;flex-shrink:0;}
.brand-main{
  font-size:16px;font-weight:700;letter-spacing:.16em;color:var(--text);
}
.brand-sub{font-size:11px;letter-spacing:.26em;color:var(--accent);margin-top:3px;}
.main-nav{display:flex;align-items:center;gap:30px;}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;
  transition:color .25s ease;display:inline-flex;align-items:center;gap:8px;
}
.nav-link i{display:none;}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  border-radius:2px;transition:width .28s ease;
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{width:100%;}
.nav-link.active{color:var(--text);}
.nav-link.active::after{width:100%;}
.nav-link.active::before{
  content:"";position:absolute;left:50%;bottom:-6px;width:4px;height:4px;border-radius:50%;
  background:var(--accent);transform:translateX(-50%);
  box-shadow:0 0 10px rgba(18,227,194,.9);
}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--border);
  color:var(--text);font-size:16px;align-items:center;justify-content:center;
  transition:border-color .25s ease,color .25s ease;
}
.nav-toggle:hover{border-color:rgba(46,123,255,.6);color:var(--accent);}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:146px 0 78px;
  border-bottom:1px solid var(--border);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(18,227,194,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(18,227,194,.07) 1px,transparent 1px);
  background-size:52px 52px;
  -webkit-mask-image:radial-gradient(circle at 18% 0%,#000 0%,transparent 72%);
  mask-image:radial-gradient(circle at 18% 0%,#000 0%,transparent 72%);
  pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;top:-30%;left:-10%;width:60vw;height:60vw;
  background:radial-gradient(circle,rgba(46,123,255,.12) 0%,transparent 68%);
  filter:blur(40px);pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.hero-inner{max-width:860px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;
  background:rgba(18,227,194,.15);color:var(--accent);
  border:1px solid rgba(18,227,194,.28);
}
.page-hero h1{
  margin-top:22px;
  font-size:clamp(30px,4.4vw,52px);line-height:1.2;font-weight:700;letter-spacing:-.015em;
}
.page-hero h1 .hl{
  background:linear-gradient(135deg,var(--primary),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  margin-top:22px;max-width:720px;color:var(--text-2);font-size:17px;line-height:1.9;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-metrics{
  display:flex;flex-wrap:wrap;align-items:center;gap:0;margin-top:44px;
  border-top:1px solid var(--border);padding-top:26px;
}
.metric{padding:0 30px;border-left:1px solid var(--border);}
.metric:first-child{padding-left:0;border-left:0;}
.metric-num{font-size:clamp(28px,3.4vw,40px);font-weight:600;color:var(--accent);line-height:1.1;}
.metric-num span{font-size:14px;color:var(--text-2);margin-left:4px;font-weight:400;}
.metric-label{font-size:13px;color:var(--text-2);margin-top:6px;}

/* ---------- 能力块 ---------- */
.cap-list{display:flex;flex-direction:column;gap:20px;}
.cap-item{
  display:grid;grid-template-columns:64px 1fr;gap:24px;align-items:flex-start;
  background:var(--glass);border:1px solid var(--border);border-radius:var(--r-md);
  padding:28px;position:relative;overflow:hidden;
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  box-shadow:var(--shadow-card);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.cap-item::after{
  content:"";position:absolute;top:-40px;right:-40px;width:200px;height:200px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,123,255,.12) 0%,transparent 70%);
  opacity:0;transition:opacity .3s ease;pointer-events:none;
}
.cap-item:hover{transform:translateY(-4px);border-color:rgba(46,123,255,.4);box-shadow:var(--shadow-hover);}
.cap-item:hover::after{opacity:1;}
.cap-icon{
  width:64px;height:64px;border-radius:16px;display:flex;align-items:center;justify-content:center;
  font-size:22px;color:var(--accent);
  background:rgba(18,227,194,.1);border:1px solid rgba(18,227,194,.22);
}
.cap-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.cap-num{font-size:14px;font-weight:600;color:var(--primary);letter-spacing:.08em;}
.cap-head h3{font-size:20px;font-weight:600;line-height:1.45;}
.cap-item p{color:var(--text-2);font-size:15px;margin-top:12px;line-height:1.85;}
.cap-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.cap-points li{
  font-size:13px;color:var(--text-2);padding:5px 13px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--border);
}
.cap-points li i{color:var(--accent);margin-right:6px;font-size:11px;}

/* ---------- 双栏说明 ---------- */
.split-note{display:grid;grid-template-columns:1fr 1.15fr;gap:56px;align-items:start;}
.split-note h2{
  font-size:clamp(24px,3vw,34px);line-height:1.35;font-weight:600;
}
.split-note .figure{margin-top:28px;}
.split-note .figure img{
  border-radius:var(--r-sm);border:1px solid var(--border);
  aspect-ratio:16/10;object-fit:cover;width:100%;
}
.split-note .figure figcaption{font-size:13px;color:var(--text-3);margin-top:10px;}
.note-body p{color:var(--text-2);font-size:17px;line-height:1.9;}
.note-body p + p{margin-top:20px;}
.note-body strong{color:var(--text);font-weight:600;}

/* ---------- 规格表 ---------- */
.table-scroll{
  overflow-x:auto;border-radius:var(--r-md);border:1px solid var(--border);
  background:rgba(14,21,36,.7);
  -webkit-overflow-scrolling:touch;
}
.spec-table{width:100%;min-width:720px;border-collapse:collapse;margin:0;}
.spec-table th,.spec-table td{
  padding:18px 22px;text-align:left;font-size:15px;
  border-bottom:1px solid var(--border);
}
.spec-table thead th{
  font-size:13px;letter-spacing:.1em;color:var(--text-2);font-weight:500;
  background:rgba(255,255,255,.04);white-space:nowrap;
}
.spec-table tbody tr:nth-child(even){background:rgba(255,255,255,.022);}
.spec-table tbody tr:last-child td{border-bottom:0;}
.spec-table tbody tr:hover{background:rgba(46,123,255,.07);}
.spec-table td:first-child{color:var(--text);font-weight:500;}
.spec-table td{color:var(--text-2);}
.spec-table .ok{color:var(--ok);font-weight:500;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-accordion .accordion-item{background:transparent;border:0;border-top:1px solid var(--border);}
.faq-accordion .accordion-item:last-child{border-bottom:1px solid var(--border);}
.faq-accordion .accordion-button{
  background:transparent;color:var(--text);font-size:17px;font-weight:600;
  padding:22px 52px 22px 0;position:relative;box-shadow:none;border-radius:0;
  transition:color .25s ease;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--accent);}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 3px rgba(46,123,255,.35);z-index:3;}
.faq-accordion .accordion-button::before{
  content:"";position:absolute;right:8px;top:50%;width:15px;height:2px;border-radius:2px;
  background:var(--accent);transform:translateY(-50%);
}
.faq-accordion .accordion-button::after{
  content:"";position:absolute;right:14px;top:50%;width:2px;height:15px;border-radius:2px;
  background:var(--accent);transform:translateY(-50%) rotate(0deg);
  transition:transform .3s ease,opacity .3s ease;background-image:none;margin-left:0;
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(90deg);opacity:0;}
.faq-accordion .accordion-body{
  padding:0 52px 22px 0;color:var(--text-2);font-size:15px;line-height:1.9;
  border-left:3px solid transparent;margin-left:-3px;padding-left:18px;
  transition:border-color .3s ease;
}
.faq-accordion .accordion-collapse.show .accordion-body,
.faq-accordion .accordion-collapse.collapsing .accordion-body{
  border-left-color:var(--primary);
  box-shadow:-1px 0 18px -8px rgba(46,123,255,.9);
}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);border:1px solid var(--border);
  background:linear-gradient(135deg,rgba(46,123,255,.14),rgba(18,227,194,.06)),var(--card);
  padding:56px;display:grid;grid-template-columns:1.4fr auto;gap:36px;align-items:center;
  box-shadow:var(--shadow-card);
}
.cta-panel::after{
  content:"";position:absolute;top:-60%;right:-10%;width:50%;height:220%;
  background:radial-gradient(circle,rgba(46,123,255,.22) 0%,transparent 65%);
  transform:rotate(18deg);pointer-events:none;
}
.cta-panel h2{font-size:clamp(24px,3vw,34px);font-weight:600;line-height:1.35;position:relative;z-index:2;}
.cta-panel p{color:var(--text-2);margin-top:14px;max-width:620px;position:relative;z-index:2;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--sec);border-top:1px solid var(--border);
  background:linear-gradient(180deg,rgba(11,17,28,.65),rgba(5,8,15,0));
  padding-top:64px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:44px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{color:var(--text-2);font-size:14px;line-height:1.85;max-width:320px;}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:18px;letter-spacing:.06em;}
.footer-links li + li{margin-top:11px;}
.footer-links a{
  font-size:14px;color:var(--text-2);display:inline-block;
  transition:color .25s ease,transform .25s ease;
}
.footer-links a:hover{color:var(--primary);transform:translateX(2px);}
.footer-note{font-size:13px;color:var(--text-3);line-height:1.9;}
.footer-note strong{color:var(--text-2);font-weight:500;}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid var(--border);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- 底部转化条 ---------- */
.bottom-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:900;
  display:none;align-items:center;justify-content:space-between;gap:16px;
  padding:12px 20px calc(12px + env(safe-area-inset-bottom));
  min-height:64px;
  background:rgba(11,17,28,.86);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border-top:1px solid rgba(46,123,255,.25);
}
.bottom-bar span{font-size:14px;color:var(--text-2);}
.bottom-bar .btn{padding:11px 20px;font-size:14px;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  :root{--sec:82px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px;}
}
@media (max-width:991.98px){
  :root{--sec:72px;}
  body{padding-bottom:76px;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-primary{display:none;}
  .main-nav{
    position:fixed;top:72px;left:0;right:0;bottom:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(5,8,15,.96);
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    padding:18px 24px 40px;
    transform:translateX(100%);
    transition:transform .35s ease;
    overflow-y:auto;
  }
  .main-nav.open{transform:translateX(0);}
  .nav-link{
    height:56px;font-size:17px;justify-content:space-between;
    border-bottom:1px solid var(--border);color:var(--text-2);
  }
  .nav-link i{display:block;font-size:13px;color:var(--text-3);}
  .nav-link::after,.nav-link.active::before{display:none;}
  .nav-link.active{color:var(--accent);}
  .page-hero{padding:122px 0 62px;}
  .split-note{grid-template-columns:1fr;gap:32px;}
  .cta-panel{grid-template-columns:1fr;padding:40px 30px;}
  .metric{padding:0 22px;}
  .bottom-bar{display:flex;}
}
@media (max-width:767.98px){
  :root{--sec:56px;}
  .container{padding-left:20px;padding-right:20px;}
  .page-hero{padding:110px 0 52px;}
  .hero-metrics{gap:0;row-gap:20px;}
  .metric{
    padding:0 18px;border-left:1px solid var(--border);
  }
  .metric:nth-child(2){border-left:1px solid var(--border);}
  .metric:nth-child(2n+1){padding-left:0;border-left:0;}
  .cap-item{grid-template-columns:48px 1fr;gap:18px;padding:22px;}
  .cap-icon{width:48px;height:48px;font-size:18px;border-radius:14px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:575.98px){
  .cap-item{-webkit-backdrop-filter:none;backdrop-filter:none;background:rgba(14,21,36,.82);}
  .hero-cta .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-actions .btn{width:100%;}
  .bottom-bar span{font-size:13px;}
  .bottom-bar .btn{padding:10px 16px;font-size:13px;}
}

/* roulang page: category2 */
:root{
  --bg:#05080F;
  --panel:#0B111C;
  --card:#0E1524;
  --primary:#2E7BFF;
  --accent:#12E3C2;
  --warn:#FF8A3D;
  --ok:#2ED47A;
  --alert:#FFB020;
  --danger:#FF5A6A;
  --text:#EAF2FF;
  --text-2:#93A6C4;
  --text-3:#5D6E88;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.045);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:14px;
  --r-btn:999px;
  --r-input:12px;
  --shadow-card:0 1px 0 rgba(255,255,255,.06) inset, 0 24px 60px -30px rgba(2,8,20,.9);
  --glow-hover:0 0 32px -8px rgba(46,123,255,.45);
  --container:1200px;
  --sec-y:96px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}

*,
*::before,
*::after{box-sizing:border-box;}

html{scroll-behavior:smooth;}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  padding-bottom:96px;
  overflow-x:hidden;
}

img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:var(--primary);}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:0;list-style:none;}
::selection{background:rgba(46,123,255,.35);color:#fff;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

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

/* ============ 通用按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  padding:14px 26px;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,filter .25s ease,color .25s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#2E7BFF 0%,#12E3C2 100%);
  color:#04101F;
  box-shadow:0 0 0 1px rgba(46,123,255,.55), 0 10px 30px -10px rgba(46,123,255,.75);
}
.btn-primary:hover{
  color:#04101F;
  transform:translateY(-2px);
  filter:brightness(1.06);
  box-shadow:0 0 0 1px rgba(46,123,255,.65), 0 14px 40px -10px rgba(46,123,255,.9);
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(46,123,255,.5),0 4px 14px -8px rgba(46,123,255,.6);}
.btn-ghost{
  background:transparent;
  color:var(--text);
  border:1px solid var(--line-2);
}
.btn-ghost:hover{
  color:var(--text);
  border-color:rgba(46,123,255,.7);
  background:rgba(46,123,255,.08);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-lg{padding:16px 32px;font-size:16px;}
.btn:focus-visible,
a:focus-visible,
button:focus-visible,
.toc-link:focus-visible{
  outline:none;
  box-shadow:0 0 0 3px rgba(46,123,255,.45);
}

/* ============ 徽章 ============ */
.badge-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:999px;
  font-size:13px;
  font-weight:500;
  line-height:1.5;
  letter-spacing:.02em;
}
.badge-accent{background:rgba(18,227,194,.15);color:var(--accent);}
.badge-primary{background:rgba(46,123,255,.16);color:#8FB8FF;}
.badge-warn{background:rgba(255,138,61,.14);color:var(--warn);}
.badge-soft{background:rgba(255,255,255,.06);color:var(--text-2);}

/* ============ 头部导航 ============ */
.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:1000;
  height:72px;
  display:flex;
  align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.scrolled{
  background:rgba(11,17,28,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  width:100%;
}
.brand{
  display:flex;
  flex-direction:column;
  line-height:1.1;
  gap:2px;
}
.brand-main{
  font-size:18px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--text);
}
.brand-sub{
  font-size:11px;
  letter-spacing:.22em;
  color:var(--accent);
  font-weight:500;
}
.brand:hover .brand-main{color:#fff;}

.main-nav{
  display:flex;
  align-items:center;
  gap:34px;
}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  padding:6px 0;
  display:inline-flex;
  align-items:center;
}
.nav-link i{display:none;font-size:12px;}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:0;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  transition:width .25s ease;
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{width:100%;}
.nav-link.active{color:var(--text);}
.nav-link.active::after{width:100%;}
.nav-link.active::before{
  content:"";
  position:absolute;
  left:50%;
  transform:translateX(-50%);
  bottom:-10px;
  width:4px;
  height:4px;
  border-radius:50%;
  background:var(--accent);
}
.header-actions{display:flex;align-items:center;gap:14px;}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:12px;
  border:1px solid var(--line-2);
  background:transparent;
  color:var(--text);
  font-size:16px;
}

/* ============ 标题区 ============ */
.page-head{
  position:relative;
  padding:150px 0 64px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-head::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    radial-gradient(60vw 60vw at 30% 0%, rgba(46,123,255,.12), transparent 70%),
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:auto, 56px 56px, 56px 56px;
  -webkit-mask-image:linear-gradient(180deg, rgba(0,0,0,.9), rgba(0,0,0,.25));
  mask-image:linear-gradient(180deg, rgba(0,0,0,.9), rgba(0,0,0,.25));
  pointer-events:none;
}
.page-head .container{position:relative;z-index:2;}
.head-narrow{max-width:860px;}
.crumb{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:22px;
}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--primary);}
.crumb span.sep{color:var(--text-3);opacity:.7;}
.crumb .current{color:var(--text);}
.page-head h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.2;
  font-weight:700;
  letter-spacing:-.01em;
  margin:18px 0 20px;
}
.page-head h1 em{
  font-style:normal;
  background:linear-gradient(135deg,#2E7BFF,#12E3C2);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.head-sub{
  font-size:17px;
  color:var(--text-2);
  line-height:1.85;
  max-width:720px;
}
.head-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:18px;
  margin-top:30px;
  font-size:13px;
  color:var(--text-3);
}
.head-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line-2);}
.head-meta strong{color:var(--accent);font-weight:600;font-size:15px;}

/* ============ 文档布局 ============ */
.section{padding:var(--sec-y) 0;}
.section-tight{padding:72px 0;}

.docs-layout{
  display:grid;
  grid-template-columns:240px 1fr;
  gap:56px;
  align-items:start;
}

/* 目录 */
.toc{
  position:sticky;
  top:104px;
  padding:22px 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.toc-title{
  font-size:12px;
  letter-spacing:.18em;
  color:var(--text-3);
  margin-bottom:16px;
  font-weight:600;
}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-link{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  padding:9px 0 9px 14px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.5;
}
.toc-link::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%);
  width:2px;
  height:0;
  border-radius:2px;
  background:linear-gradient(180deg,#2E7BFF,#12E3C2);
  transition:height .25s ease;
}
.toc-link:hover{color:var(--text);}
.toc-link.active{color:var(--primary);}
.toc-link.active::before{height:20px;}
.toc-link .toc-num{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.toc-link.active .toc-num{color:var(--accent);}

/* 正文分节 */
.doc-body{max-width:820px;}
.doc-section{padding-bottom:56px;}
.doc-section + .doc-section{border-top:1px solid var(--line);padding-top:56px;}
.doc-section h2{
  position:relative;
  font-size:clamp(24px,3vw,36px);
  line-height:1.3;
  font-weight:600;
  padding-left:18px;
  margin-bottom:22px;
}
.doc-section h2::before{
  content:"";
  position:absolute;
  left:0;
  top:6px;
  bottom:6px;
  width:3px;
  border-radius:3px;
  background:linear-gradient(180deg,#2E7BFF,#12E3C2);
}
.doc-section h3{
  font-size:21px;
  font-weight:600;
  line-height:1.45;
  margin:34px 0 14px;
}
.doc-section p{
  font-size:17px;
  line-height:1.9;
  color:var(--text-2);
  margin-bottom:20px;
}
.doc-section p:last-child{margin-bottom:0;}
.doc-section strong{color:var(--text);font-weight:600;}

.doc-lead{
  font-size:18px;
  line-height:1.9;
  color:var(--text);
}

.point-list{display:flex;flex-direction:column;gap:16px;margin:8px 0 24px;}
.point-list li{
  position:relative;
  padding-left:26px;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-2);
}
.point-list li::before{
  content:"";
  position:absolute;
  left:2px;
  top:12px;
  width:6px;
  height:6px;
  border-radius:1px;
  background:var(--accent);
}
.point-list li strong{color:var(--text);}

.figure{
  margin:30px 0;
  border-radius:var(--r-sm);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--card);
  box-shadow:var(--shadow-card);
}
.figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.figure figcaption{
  font-size:13px;
  color:var(--text-3);
  padding:12px 18px;
  border-top:1px solid var(--line);
}

/* 提示对照 */
.notice-list{display:flex;flex-direction:column;gap:12px;margin:6px 0 24px;}
.notice-item{
  display:grid;
  grid-template-columns:220px 1fr;
  gap:20px;
  padding:20px 22px;
  border-radius:var(--r-md);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:0 1px 0 rgba(255,255,255,.05) inset;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.notice-item:hover{
  transform:translateY(-3px);
  border-color:rgba(46,123,255,.4);
  box-shadow:0 1px 0 rgba(255,255,255,.08) inset, var(--glow-hover);
}
.notice-item .notice-key{
  font-size:15px;
  font-weight:600;
  color:var(--text);
  display:flex;
  align-items:center;
  gap:9px;
}
.notice-item .notice-key i{color:var(--accent);font-size:13px;}
.notice-item .notice-val{font-size:15.5px;color:var(--text-2);line-height:1.8;}

/* 时间线 */
.timeline-wrap{
  margin-top:12px;
  padding:36px 0 8px;
  border-top:1px solid var(--line);
}
.timeline{position:relative;padding-left:34px;}
.timeline::before{
  content:"";
  position:absolute;
  left:9px;
  top:8px;
  bottom:24px;
  width:1px;
  background:linear-gradient(180deg,rgba(18,227,194,.55),rgba(46,123,255,.15));
}
.tl-item{position:relative;padding:0 0 34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";
  position:absolute;
  left:-30px;
  top:9px;
  width:11px;
  height:11px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(18,227,194,.14);
}
.tl-num{
  font-size:13px;
  font-weight:600;
  color:var(--accent);
  letter-spacing:.1em;
  font-variant-numeric:tabular-nums;
}
.tl-item h3{font-size:19px;font-weight:600;margin:6px 0 8px;}
.tl-item p{font-size:15.5px;color:var(--text-2);line-height:1.8;margin:0;}

/* FAQ */
.faq-panel{
  padding:32px 34px;
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.faq-panel .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
  border-radius:0;
}
.faq-panel .accordion-item:last-child{border-bottom:0;}
.faq-panel .accordion-button{
  position:relative;
  background:transparent;
  color:var(--text);
  font-size:17px;
  font-weight:600;
  padding:22px 34px 22px 0;
  box-shadow:none;
  border-radius:0;
}
.faq-panel .accordion-button:not(.collapsed){
  color:var(--primary);
  background:transparent;
  box-shadow:none;
}
.faq-panel .accordion-button::after{
  margin-left:auto;
  width:16px;
  height:16px;
  background-image:none;
  content:"";
  border-right:2px solid var(--text-3);
  border-bottom:2px solid var(--text-3);
  transform:rotate(45deg);
  transition:transform .28s ease,border-color .28s ease;
  position:absolute;
  right:6px;
  top:50%;
  margin-top:-10px;
}
.faq-panel .accordion-button:not(.collapsed)::after{
  transform:rotate(225deg);
  border-color:var(--accent);
}
.faq-panel .accordion-button:focus{box-shadow:none;}
.faq-panel .accordion-button:focus-visible{box-shadow:0 0 0 3px rgba(46,123,255,.45);border-radius:12px;}
.faq-panel .accordion-body{
  padding:0 40px 24px 0;
  font-size:15.5px;
  line-height:1.85;
  color:var(--text-2);
}
.faq-panel .accordion-item:has(.accordion-button:not(.collapsed))::before{content:none;}

/* 数据条 */
.stat-bar{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border-radius:var(--r-lg);
  background:var(--card);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.stat-cell{
  padding:30px 26px;
  border-right:1px solid var(--line);
}
.stat-cell:last-child{border-right:0;}
.stat-cell .stat-num{
  font-size:clamp(28px,3.4vw,44px);
  font-weight:600;
  line-height:1.1;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.stat-cell .stat-num small{font-size:15px;color:var(--text-3);margin-left:4px;font-weight:500;}
.stat-cell .stat-label{font-size:13.5px;color:var(--text-2);margin-top:8px;}

/* CTA 区块 */
.cta-block{
  position:relative;
  padding:56px 48px;
  border-radius:var(--r-lg);
  background:
    radial-gradient(60vw 40vw at 20% 0%, rgba(46,123,255,.16), transparent 70%),
    linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.cta-block h2{
  font-size:clamp(24px,3vw,34px);
  font-weight:600;
  line-height:1.3;
  margin-bottom:14px;
}
.cta-block p{
  font-size:16px;
  color:var(--text-2);
  max-width:620px;
  margin-bottom:28px;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-links{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:26px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.cta-links a{
  font-size:14px;
  color:var(--text-2);
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.cta-links a:hover{color:var(--primary);}

/* 分隔小标题 */
.sec-head{margin-bottom:42px;max-width:760px;}
.sec-head h2{
  position:relative;
  font-size:clamp(24px,3vw,36px);
  font-weight:600;
  line-height:1.3;
  padding-left:18px;
  margin-bottom:14px;
}
.sec-head h2::before{
  content:"";
  position:absolute;
  left:0;
  top:6px;
  bottom:6px;
  width:3px;
  border-radius:3px;
  background:linear-gradient(180deg,#2E7BFF,#12E3C2);
}
.sec-head p{font-size:16px;color:var(--text-2);}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  padding-top:72px;
  background:linear-gradient(180deg,rgba(11,17,28,.6),rgba(5,8,15,0));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.4fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14.5px;color:var(--text-2);line-height:1.85;max-width:340px;}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:var(--text);
  margin-bottom:18px;
  letter-spacing:.04em;
}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{
  font-size:14px;
  color:var(--text-2);
  display:inline-block;
  transition:color .2s ease,transform .2s ease;
}
.footer-links a:hover{color:var(--primary);transform:translateX(2px);}
.footer-note{font-size:13.5px;color:var(--text-2);line-height:1.95;}
.footer-note strong{color:var(--accent);font-weight:600;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:22px 0 30px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}

/* ============ 底部固定转化条 ============ */
.mobile-cta{
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:1100;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:10px 20px calc(10px + env(safe-area-inset-bottom));
  background:rgba(11,17,28,.88);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-top:1px solid rgba(46,123,255,.25);
}
.mobile-cta .cta-text{font-size:15px;color:var(--text-2);line-height:1.5;}
.mobile-cta .cta-text strong{color:var(--text);font-weight:600;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  :root{--sec-y:80px;}
  .docs-layout{gap:40px;grid-template-columns:210px 1fr;}
}

@media (max-width:991px){
  :root{--sec-y:72px;}
  body{padding-bottom:112px;}

  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .main-nav{
    position:fixed;
    left:0;
    right:0;
    top:72px;
    bottom:0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:16px 24px 40px;
    background:rgba(11,17,28,.94);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-top:1px solid var(--line);
    transform:translateY(-8px);
    opacity:0;
    visibility:hidden;
    transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
    overflow-y:auto;
  }
  .main-nav.open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-link{
    height:56px;
    width:100%;
    justify-content:space-between;
    font-size:16px;
    color:var(--text);
    border-bottom:1px solid var(--line);
  }
  .nav-link i{display:block;color:var(--text-3);}
  .nav-link::after{display:none;}
  .nav-link.active::before{display:none;}
  .nav-link.active{color:var(--primary);}
  .header-actions .btn-sm{display:none;}

  .docs-layout{grid-template-columns:1fr;gap:0;}
  .toc{
    position:static;
    border:1px solid var(--line);
    border-radius:var(--r-md);
    background:var(--glass);
    padding:18px 20px;
    margin-bottom:40px;
  }
  .toc-list{
    flex-direction:row;
    flex-wrap:nowrap;
    gap:10px;
    overflow-x:auto;
    padding-bottom:4px;
  }
  .toc-link{
    padding:8px 14px;
    border-radius:999px;
    border:1px solid var(--line);
    white-space:nowrap;
    font-size:13.5px;
  }
  .toc-link::before{display:none;}
  .toc-link.active{border-color:rgba(46,123,255,.6);background:rgba(46,123,255,.1);}

  .doc-body{max-width:100%;}
  .notice-item{grid-template-columns:1fr;gap:8px;}
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .stat-cell:nth-child(2){border-right:0;}
  .stat-cell:nth-child(1),
  .stat-cell:nth-child(2){border-bottom:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .footer-brand{grid-column:1/-1;}
  .faq-panel{padding:22px 24px;}
}

@media (max-width:767px){
  .page-head{padding:126px 0 52px;}
  .head-sub{font-size:16px;}
  .doc-section h2{font-size:24px;}
  .doc-section p{font-size:16px;}
  .cta-block{padding:36px 24px;}
  .footer-grid{grid-template-columns:1fr;}
  .figure img{aspect-ratio:16/11;}
}

@media (max-width:575px){
  .container{padding:0 18px;}
  .page-head h1{font-size:30px;}
  .head-meta{gap:12px;}
  .stat-bar{grid-template-columns:1fr;}
  .stat-cell{border-right:0;border-bottom:1px solid var(--line);}
  .stat-cell:last-child{border-bottom:0;}
  .btn{width:100%;}
  .cta-actions{flex-direction:column;}
  .cta-links{flex-direction:column;gap:10px;}
  .mobile-cta{flex-direction:column;align-items:stretch;text-align:center;}
  .mobile-cta .btn{width:100%;}
  .faq-panel{padding:16px 18px;}
  .faq-panel .accordion-button{font-size:16px;}
}

/* 玻璃模糊降级 */
@media (max-width:575px){
  .site-header.scrolled,
  .faq-panel,
  .mobile-cta{
    backdrop-filter:none;
    -webkit-backdrop-filter:none;
  }
  .site-header.scrolled{background:rgba(11,17,28,.96);}
  .faq-panel{background:rgba(14,21,36,.85);}
  .mobile-cta{background:rgba(11,17,28,.97);}
}

@media (min-width:992px){
  .mobile-cta{
    left:50%;
    right:auto;
    transform:translateX(-50%);
    bottom:22px;
    width:560px;
    border-radius:999px;
    border:1px solid rgba(46,123,255,.28);
    padding:10px 12px 10px 24px;
    box-shadow:0 1px 0 rgba(255,255,255,.08) inset, 0 24px 60px -30px rgba(2,8,20,.95);
  }
  .mobile-cta .btn{width:auto;}
}

/* roulang page: category3 */
:root{
  --bg:#05080F;
  --panel:#0B111C;
  --card:#0E1524;
  --primary:#2E7BFF;
  --accent:#12E3C2;
  --orange:#FF8A3D;
  --text:#EAF2FF;
  --muted:#93A6C4;
  --weak:#5D6E88;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.18);
  --success:#2ED47A;
  --warning:#FFB020;
  --error:#FF5A6A;
  --r-lg:24px;
  --r:16px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-card:0 1px 0 rgba(255,255,255,.06) inset, 0 24px 60px -30px rgba(2,8,20,.9);
  --glow-primary:0 0 32px -8px rgba(46,123,255,.45);
  --section-y:96px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:72px;
  padding-bottom:88px;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--text);}
p{margin:0;}
::selection{background:rgba(46,123,255,.35);color:#fff;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,123,255,.45);}

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

/* 导航 */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  height:72px;
  z-index:1000;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .3s ease, border-color .3s ease, backdrop-filter .3s ease;
}
.site-header.scrolled{
  background:rgba(11,17,28,.72);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom-color:rgba(255,255,255,.08);
}
.header-inner{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{display:flex;flex-direction:column;line-height:1.06;flex-shrink:0;}
.brand-main{
  font-size:16px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--text);
}
.brand-sub{
  font-size:11px;
  letter-spacing:.22em;
  color:var(--accent);
  font-weight:500;
}
.main-nav{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--muted);
  padding:6px 0;
  transition:color .25s ease;
}
.nav-link i{display:none;}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:2px;width:0;
  border-radius:2px;
  background:var(--primary);
  transition:width .28s ease;
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{width:100%;}
.nav-link.active{color:var(--text);}
.nav-link.active::after{width:100%;}
.nav-link.active::before{
  content:"";
  position:absolute;
  left:50%;bottom:-8px;
  width:4px;height:4px;
  border-radius:50%;
  background:var(--accent);
  transform:translateX(-50%);
}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:var(--r-sm);
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  color:var(--text);
  align-items:center;
  justify-content:center;
  font-size:16px;
  cursor:pointer;
  transition:border-color .25s ease,background .25s ease;
}
.nav-toggle:hover{border-color:var(--primary);background:rgba(46,123,255,.1);}

/* 按钮 */
.btn{
  --bs-btn-focus-box-shadow:none;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  padding:13px 28px;
  cursor:pointer;
  transition:transform .2s ease, box-shadow .25s ease, background .25s ease, color .25s ease, border-color .25s ease, filter .2s ease;
}
.btn-primary{
  --bs-btn-bg:transparent;
  --bs-btn-border-color:transparent;
  --bs-btn-hover-bg:transparent;
  --bs-btn-hover-border-color:transparent;
  --bs-btn-active-bg:transparent;
  --bs-btn-active-border-color:transparent;
  --bs-btn-color:#03121A;
  --bs-btn-hover-color:#03121A;
  --bs-btn-active-color:#03121A;
  --bs-btn-disabled-bg:transparent;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#03121A;
  box-shadow:0 0 0 1px rgba(46,123,255,.55), 0 10px 30px -10px rgba(46,123,255,.75);
}
.btn-primary:hover{
  transform:translateY(-2px);
  filter:brightness(1.06);
  box-shadow:0 0 0 1px rgba(46,123,255,.65), 0 14px 42px -10px rgba(46,123,255,.95);
}
.btn-primary:active{
  transform:translateY(1px);
  box-shadow:0 0 0 1px rgba(46,123,255,.5), 0 4px 14px -8px rgba(46,123,255,.6);
}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,.18);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:var(--primary);
  background:rgba(46,123,255,.08);
  color:var(--text);
  transform:translateY(-2px);
}
.btn-sm{padding:9px 20px;font-size:14px;}
.btn-block{display:flex;width:100%;}

/* 徽章 */
.badge-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:rgba(18,227,194,.15);
  color:var(--accent);
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
}
.badge-blue{
  background:rgba(46,123,255,.16);
  color:#8FB8FF;
}
.badge-warn{
  background:rgba(255,138,61,.16);
  color:var(--orange);
}

/* 玻璃卡片 */
.glass-card{
  position:relative;
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  border-radius:var(--r);
  box-shadow:var(--shadow-card), 0 1px 0 rgba(255,255,255,.12) inset;
  padding:26px;
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  overflow:hidden;
  transition:transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.glass-card:hover{
  transform:translateY(-4px);
  border-color:rgba(46,123,255,.4);
  box-shadow:var(--shadow-card), var(--glow-primary);
}
.glass-card::after{
  content:"";
  position:absolute;
  top:-60px;right:-60px;
  width:180px;height:180px;
  background:radial-gradient(circle,rgba(46,123,255,.16) 0%,rgba(46,123,255,0) 70%);
  opacity:0;
  transition:opacity .35s ease;
  pointer-events:none;
}
.glass-card:hover::after{opacity:1;}

/* Hero */
.hero{
  position:relative;
  padding:112px 0 96px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  top:-180px;left:-14%;
  width:60vw;height:60vw;
  max-width:900px;max-height:900px;
  background:radial-gradient(circle,rgba(46,123,255,.12) 0%,rgba(46,123,255,0) 68%);
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(180deg,rgba(5,8,15,.82) 0%,rgba(5,8,15,.94) 70%,var(--bg) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  opacity:.9;
  pointer-events:none;
}
.hero-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.12fr .88fr;
  gap:56px;
  align-items:center;
}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.2;
  font-weight:700;
  margin:20px 0 18px;
  letter-spacing:-.01em;
}
.hero-sub{
  font-size:17px;
  line-height:1.9;
  color:var(--muted);
  max-width:560px;
}
.hero-cta{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:32px;
}
.hero-metrics{
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  margin-top:40px;
  padding-top:28px;
  border-top:1px solid var(--line);
}
.metric{min-width:120px;}
.metric-num{
  display:block;
  font-size:clamp(24px,2.6vw,32px);
  font-weight:600;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.metric-label{
  display:block;
  font-size:13px;
  color:var(--weak);
  letter-spacing:.06em;
  margin-top:4px;
}
.hero-panel{padding:28px;}
.panel-top{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  font-weight:600;
  color:var(--muted);
  letter-spacing:.04em;
  padding-bottom:18px;
  border-bottom:1px solid var(--line);
}
.dot-live{
  width:8px;height:8px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(18,227,194,.15);
}
.panel-list{margin-top:6px;}
.panel-list li{
  display:grid;
  grid-template-columns:1fr auto;
  gap:6px 12px;
  padding:16px 0;
  border-bottom:1px solid var(--line);
}
.panel-list li:last-child{border-bottom:none;}
.p-name{font-size:15px;font-weight:600;color:var(--text);}
.p-desc{grid-column:1 / 2;font-size:13px;color:var(--weak);}
.p-state{
  align-self:start;
  font-size:12px;
  font-weight:600;
  padding:3px 10px;
  border-radius:var(--r-pill);
  font-variant-numeric:tabular-nums;
}
.p-state.ok{background:rgba(46,212,122,.14);color:var(--success);}
.p-state.mid{background:rgba(255,176,32,.14);color:var(--warning);}
.panel-foot{
  margin-top:16px;
  font-size:13px;
  color:var(--weak);
}

/* 板块通用 */
.section{padding:var(--section-y) 0;}
.section-alt{background:linear-gradient(180deg,rgba(11,17,28,.6) 0%,rgba(5,8,15,0) 100%);}
.section-head{max-width:760px;margin-bottom:48px;}
.section-title{
  position:relative;
  padding-left:18px;
  font-size:clamp(24px,3vw,36px);
  line-height:1.3;
  font-weight:600;
  margin-bottom:14px;
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;top:.16em;bottom:.16em;
  width:3px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
}
.section-desc{
  font-size:16px;
  line-height:1.85;
  color:var(--muted);
  padding-left:18px;
}

/* 对比矩阵 */
.matrix-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.matrix-card{
  position:relative;
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r);
  padding:28px;
  box-shadow:var(--shadow-card);
  transition:transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.matrix-card:hover{
  transform:translateY(-4px);
  border-color:rgba(46,123,255,.4);
  box-shadow:var(--shadow-card), var(--glow-primary);
}
.matrix-card.is-featured{
  background:linear-gradient(180deg,rgba(46,123,255,.12) 0%,rgba(14,21,36,.9) 46%);
  border-color:rgba(46,123,255,.36);
}
.matrix-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:var(--r-sm);
  background:rgba(18,227,194,.12);
  color:var(--accent);
  font-size:18px;
  margin-bottom:18px;
}
.matrix-card h3{font-size:20px;line-height:1.45;margin-bottom:8px;}
.matrix-note{font-size:14px;color:var(--weak);line-height:1.7;margin-bottom:20px;}
.check-list{margin-bottom:24px;}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15px;
  line-height:1.75;
  padding:10px 0;
  border-top:1px solid var(--line);
  color:var(--muted);
}
.check-list li:first-child{border-top:none;}
.check-list i{font-size:14px;margin-top:6px;flex-shrink:0;}
.check-list li.yes i{color:var(--success);}
.check-list li.no i{color:var(--orange);}
.check-list li.no{color:var(--weak);}
.matrix-card .btn{margin-top:auto;}

/* 场景卡 */
.scene-grid{
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:24px;
}
.scene-col{display:flex;flex-direction:column;gap:24px;}
.scene-card{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r);
  padding:26px;
  box-shadow:var(--shadow-card);
  transition:transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.scene-card:hover{
  transform:translateY(-4px);
  border-color:rgba(46,123,255,.4);
  box-shadow:var(--shadow-card), var(--glow-primary);
}
.scene-card.has-media{padding:0;overflow:hidden;}
.scene-media{
  position:relative;
  aspect-ratio:16 / 10;
  background:rgba(255,255,255,.04);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.scene-media img{
  width:100%;height:100%;
  object-fit:cover;
  opacity:.94;
}
.scene-body{padding:24px 26px 28px;}
.scene-num{
  display:block;
  font-size:26px;
  font-weight:600;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
  margin-bottom:10px;
}
.scene-card h3{font-size:20px;line-height:1.45;margin-bottom:10px;}
.scene-card p{font-size:15px;line-height:1.8;color:var(--muted);}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.tag{
  font-size:12.5px;
  color:var(--muted);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:4px 12px;
}

/* 数据条 */
.stat-strip{
  background:var(--panel);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:56px 0;
}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
}
.stat{
  padding:0 24px;
  border-left:1px solid var(--line);
}
.stat:first-child{border-left:none;padding-left:0;}
.stat-num{
  display:block;
  font-size:clamp(28px,3.4vw,44px);
  font-weight:600;
  line-height:1.15;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.stat-label{
  display:block;
  font-size:13px;
  color:var(--weak);
  letter-spacing:.05em;
  margin-top:8px;
}

/* 证言 */
.quote-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.quote-card{
  position:relative;
  margin:0;
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  border-radius:var(--r);
  padding:30px;
  box-shadow:var(--shadow-card);
}
.quote-mark{
  display:block;
  font-size:52px;
  line-height:1;
  color:var(--accent);
  opacity:.65;
  margin-bottom:10px;
}
.quote-card blockquote{
  margin:0;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
}
.quote-card figcaption{
  margin-top:20px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--weak);
  letter-spacing:.04em;
}

/* FAQ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{
  position:relative;
  border-bottom:1px solid var(--line);
  transition:background .25s ease;
}
.faq-item::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
  opacity:0;
  transition:opacity .3s ease;
}
.faq-item:has(.collapse.show)::before{opacity:1;}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  background:transparent;
  border:none;
  text-align:left;
  color:var(--text);
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  padding:24px 0;
  cursor:pointer;
  transition:color .25s ease;
}
.faq-q:hover{color:#BFD6FF;}
.faq-q[aria-expanded="true"]{color:var(--accent);}
.faq-q i{
  flex-shrink:0;
  font-size:15px;
  color:var(--muted);
  transition:transform .3s ease, color .3s ease;
}
.faq-q[aria-expanded="true"] i{transform:rotate(45deg);color:var(--accent);}
.faq-a{
  font-size:15.5px;
  line-height:1.9;
  color:var(--muted);
  padding:0 0 24px;
  max-width:860px;
}

/* CTA */
.cta-panel{
  position:relative;
  border-radius:var(--r-lg);
  border:1px solid rgba(46,123,255,.28);
  background:linear-gradient(135deg,rgba(46,123,255,.16) 0%,rgba(18,227,194,.08) 52%,rgba(14,21,36,.9) 100%);
  padding:56px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.cta-panel::before{
  content:"";
  position:absolute;
  top:-120px;right:-80px;
  width:420px;height:420px;
  background:radial-gradient(circle,rgba(46,123,255,.22) 0%,rgba(46,123,255,0) 70%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  display:grid;
  grid-template-columns:1.3fr .7fr;
  gap:40px;
  align-items:center;
}
.cta-panel h2{font-size:clamp(22px,2.8vw,32px);line-height:1.35;margin-bottom:14px;}
.cta-panel p{font-size:16px;line-height:1.85;color:var(--muted);max-width:620px;}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:stretch;}

/* 页脚 */
.site-footer{
  margin-top:0;
  border-top:1px solid var(--line);
  background:var(--panel);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{
  font-size:14px;
  line-height:1.85;
  color:var(--muted);
  max-width:340px;
}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:var(--text);
  margin-bottom:18px;
  letter-spacing:.04em;
}
.footer-links li{margin-bottom:12px;}
.footer-links a{
  font-size:14px;
  color:var(--muted);
  transition:color .25s ease, transform .25s ease;
  display:inline-block;
}
.footer-links a:hover{color:var(--primary);transform:translateX(2px);}
.footer-note{
  font-size:14px;
  line-height:1.95;
  color:var(--muted);
}
.footer-note strong{color:#BFD6FF;font-weight:600;}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:13px;
  color:var(--weak);
}

/* 底部转化条 */
.convert-bar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:900;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:12px 20px calc(12px + env(safe-area-inset-bottom));
  background:rgba(11,17,28,.93);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-top:1px solid rgba(46,123,255,.25);
}
.convert-text{
  font-size:15px;
  color:var(--text);
  line-height:1.5;
}

/* 响应式 */
@media (max-width:1199px){
  .hero-grid{gap:40px;}
}
@media (max-width:991px){
  :root{--section-y:72px;}
  body{padding-bottom:96px;}
  .main-nav{
    position:fixed;
    top:72px;left:0;right:0;bottom:0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px 24px 32px;
    background:rgba(11,17,28,.96);
    -webkit-backdrop-filter:blur(18px);
    backdrop-filter:blur(18px);
    border-top:1px solid var(--line);
    overflow-y:auto;
    opacity:0;
    transform:translateY(-12px);
    pointer-events:none;
    transition:opacity .28s ease, transform .28s ease;
  }
  .main-nav.open{opacity:1;transform:none;pointer-events:auto;}
  .nav-link{
    display:flex;
    align-items:center;
    justify-content:space-between;
    height:56px;
    font-size:16px;
    border-bottom:1px solid var(--line);
    padding:0;
  }
  .nav-link i{display:block;color:var(--weak);font-size:13px;}
  .nav-link::after,.nav-link::before{display:none;}
  .nav-link.active{color:var(--accent);}
  .nav-toggle{display:inline-flex;}
  .hero{padding:80px 0 72px;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-panel{max-width:520px;}
  .matrix-grid{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:32px 0;}
  .stat:nth-child(3){border-left:none;padding-left:0;}
  .quote-grid{grid-template-columns:1fr;}
  .cta-panel{padding:40px 28px;}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
}
@media (max-width:767px){
  .matrix-card{padding:24px;}
  .section-head{margin-bottom:36px;}
}
@media (max-width:575px){
  body{padding-bottom:104px;}
  .container{padding-left:18px;padding-right:18px;}
  .site-header.scrolled{
    -webkit-backdrop-filter:none;
    backdrop-filter:none;
    background:rgba(11,17,28,.96);
  }
  .hero-metrics{gap:20px;}
  .metric{min-width:calc(50% - 12px);}
  .cta-panel{padding:32px 20px;}
  .stat{padding:0 16px;}
  .stat-grid{grid-template-columns:1fr;gap:24px;}
  .stat{border-left:none;padding-left:0;border-top:1px solid var(--line);padding-top:20px;}
  .stat:first-child{border-top:none;padding-top:0;}
  .footer-grid{grid-template-columns:1fr;}
  .convert-text{font-size:14px;}
  .convert-bar{padding:10px 16px calc(10px + env(safe-area-inset-bottom));}
  .convert-bar .btn{padding:9px 16px;font-size:13.5px;}
  .glass-card{-webkit-backdrop-filter:none;backdrop-filter:none;background:rgba(14,21,36,.92);}
}
@media (min-width:992px){
  body{padding-bottom:96px;}
  .convert-bar{
    left:50%;
    right:auto;
    transform:translateX(-50%);
    bottom:24px;
    width:min(560px, calc(100% - 48px));
    border-radius:var(--r-pill);
    border:1px solid rgba(46,123,255,.25);
    padding:10px 12px 10px 26px;
  }
  .convert-bar .btn{padding:10px 22px;font-size:14px;}
}