/* roulang page: index */
:root{
  --bg:#050B14;
  --bg-2:#081120;
  --surface:#0C1A2B;
  --glass:rgba(140,190,255,.07);
  --glass-strong:rgba(140,190,255,.12);
  --line:rgba(120,170,255,.18);
  --line-strong:rgba(120,170,255,.30);
  --brand:#00D8C0;
  --brand-2:#2C7DFF;
  --amber:#FFB65C;
  --text:#E8F1FF;
  --text-2:#A3B6CE;
  --text-3:#6B7F99;
  --radius:18px;
  --radius-sm:14px;
  --shadow:0 8px 28px rgba(3,10,22,.55);
  --shadow-inset:inset 0 1px 0 rgba(255,255,255,.06);
  --glow:0 0 24px rgba(0,216,192,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-w:240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:radial-gradient(circle at 18% 8%,rgba(0,216,192,.07),transparent 42%),
                   radial-gradient(circle at 82% 26%,rgba(44,125,255,.08),transparent 46%);
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
input,textarea,select{font:inherit;}
a:hover{color:inherit;}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;}
.num{font-variant-numeric:tabular-nums;}
::selection{background:rgba(0,216,192,.28);color:#fff;}

/* ---------- 左侧导航 ---------- */
.side-nav{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--nav-w);
  z-index:60;
  display:flex;
  flex-direction:column;
  gap:18px;
  padding:26px 20px 24px;
  background:rgba(6,14,24,.82);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-right:1px solid var(--line);
  box-shadow:1px 0 0 rgba(0,216,192,.10),0 0 32px rgba(0,0,0,.35);
  overflow-y:auto;
}
.side-nav::-webkit-scrollbar{width:4px;}
.side-nav::-webkit-scrollbar-thumb{background:rgba(0,216,192,.25);border-radius:4px;}
.brand{display:block;padding:2px 4px 6px;}
.brand-dot{display:block;width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:var(--glow);margin-bottom:12px;}
.brand-line1{display:block;font-size:17px;font-weight:800;line-height:1.25;color:#fff;}
.brand-line2{display:block;font-size:13px;font-weight:600;line-height:1.5;color:var(--brand);letter-spacing:.5px;}
.brand-sub{display:block;margin-top:8px;font-size:12px;color:var(--text-3);line-height:1.6;}
.nav-group{display:flex;flex-direction:column;gap:4px;}
.nav-label{font-size:11px;color:var(--text-3);padding:0 12px 8px;font-weight:600;}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  min-height:44px;
  padding:10px 12px 10px 16px;
  border-radius:10px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.4;
  transition:color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.nav-item::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:3px;height:0;
  border-radius:3px;
  background:var(--brand);
  box-shadow:var(--glow);
  transition:height .2s var(--ease);
}
.nav-item:hover{color:#fff;transform:translateX(2px);}
.nav-item:hover::before{height:16px;}
.nav-item.active{
  color:#fff;
  background:rgba(0,216,192,.08);
  font-weight:600;
}
.nav-item.active::before{height:22px;}
.side-divider{height:1px;background:var(--line);margin:6px 0;}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:14px;}
.side-info{font-size:12px;line-height:1.75;color:var(--text-3);}
.side-info strong{display:block;color:var(--text-2);font-weight:600;font-size:12.5px;margin-bottom:4px;}
.side-cta{display:flex;justify-content:center;}

/* ---------- 移动端顶栏 & 抽屉 ---------- */
.mobile-bar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:60px;
  z-index:70;
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  background:rgba(6,14,24,.9);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.mobile-brand{display:flex;flex-direction:column;line-height:1.15;}
.mobile-brand b{font-size:15px;font-weight:800;color:#fff;}
.mobile-brand span{font-size:11px;color:var(--brand);font-weight:600;}
.burger{
  width:44px;height:44px;
  display:flex;flex-direction:column;
  align-items:center;justify-content:center;
  gap:5px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .25s var(--ease),opacity .25s var(--ease);}
.drawer-mask{
  display:none;
  position:fixed;inset:0;
  z-index:80;
  background:rgba(3,8,16,.68);
  backdrop-filter:blur(2px);
}
.drawer-mask.open{display:block;}
.drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  z-index:90;
  width:84vw;max-width:340px;
  padding:24px 18px;
  display:none;
  flex-direction:column;
  gap:8px;
  background:rgba(7,17,29,.98);
  border-left:1px solid var(--line);
  transform:translateX(100%);
  transition:transform .28s var(--ease);
  overflow-y:auto;
}
.drawer.open{display:flex;transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;}
.drawer-title{font-size:13px;color:var(--text-3);font-weight:600;}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:20px;line-height:1;color:var(--text-2);}
.drawer .nav-item{min-height:48px;font-size:15px;}
.drawer-foot{margin-top:auto;padding-top:18px;display:flex;flex-direction:column;gap:12px;}

/* ---------- 布局 ---------- */
.site-main{
  position:relative;
  z-index:1;
  margin-left:var(--nav-w);
  min-height:100vh;
}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 32px;
}
.section{
  padding:96px 0;
  scroll-margin-top:88px;
  position:relative;
}
.section + .section{border-top:1px solid rgba(120,170,255,.10);}
.section-head{max-width:720px;margin-bottom:42px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;
  color:var(--brand);
  padding:5px 12px;
  border-radius:999px;
  background:rgba(0,216,192,.09);
  border:1px solid rgba(0,216,192,.26);
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(0,216,192,.9);}
h2{font-size:clamp(24px,2.3vw,31px);font-weight:700;line-height:1.35;color:#fff;}
.section-head p{margin-top:14px;color:var(--text-2);font-size:15.5px;line-height:1.85;}
h3{font-size:18px;font-weight:600;line-height:1.5;color:#fff;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  border-radius:999px;
  font-size:15px;font-weight:700;
  white-space:nowrap;
  transition:transform .2s var(--ease),filter .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-2) 100%);
  color:#04141A;
  box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);color:#04141A;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  color:var(--text);
  background:var(--glass);
  border:1px solid var(--line-strong);
}
.btn-ghost:hover{background:var(--glass-strong);border-color:rgba(0,216,192,.5);transform:translateY(-1px);color:#fff;}
.btn-ghost:active{transform:translateY(0);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);
}
.btn-text .arrow{transition:transform .2s var(--ease);}
.btn-text:hover .arrow{transform:translateX(3px);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;
  height:23px;padding:0 10px;
  border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;
  white-space:nowrap;
}
.badge-cyan{color:var(--brand);background:rgba(0,216,192,.10);border:1px solid rgba(0,216,192,.30);}
.badge-violet{color:#8FB4FF;background:rgba(44,125,255,.12);border:1px solid rgba(44,125,255,.32);}
.badge-amber{color:var(--amber);background:rgba(255,182,92,.12);border:1px solid rgba(255,182,92,.36);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:88vh;
  display:flex;
  align-items:center;
  padding:110px 0 88px;
  overflow:hidden;
  scroll-margin-top:0;
  border-bottom:1px solid var(--line);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(115deg,rgba(5,11,20,.94) 0%,rgba(5,11,20,.78) 46%,rgba(5,11,20,.92) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  z-index:0;
}
.hero-bg::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(120,170,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(120,170,255,.04) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
}
.hero-glow{position:absolute;border-radius:50%;filter:blur(70px);z-index:0;pointer-events:none;}
.hero-glow.g1{width:420px;height:420px;left:-90px;top:-60px;background:rgba(0,216,192,.14);}
.hero-glow.g2{width:460px;height:460px;right:-60px;bottom:-140px;background:rgba(44,125,255,.14);}
.hero .container{position:relative;z-index:1;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
h1{
  font-size:clamp(34px,3.4vw,52px);
  font-weight:800;
  line-height:1.15;
  color:#fff;
}
h1 .hl{
  background:linear-gradient(120deg,var(--brand) 0%,#7FE7DC 45%,var(--brand-2) 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  margin-top:20px;
  max-width:560px;
  font-size:16.5px;
  line-height:1.9;
  color:var(--text-2);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-note{margin-top:16px;font-size:12px;color:var(--text-3);letter-spacing:.2px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px;}
.hero-tags a{
  font-size:12.5px;color:var(--text-2);
  padding:6px 13px;border-radius:999px;
  border:1px solid var(--line);
  background:rgba(140,190,255,.05);
  transition:all .2s var(--ease);
}
.hero-tags a:hover{color:var(--brand);border-color:rgba(0,216,192,.45);background:rgba(0,216,192,.08);}
.hero-card{
  border-radius:16px;
  padding:26px;
  background:linear-gradient(160deg,rgba(140,190,255,.13),rgba(140,190,255,.05));
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow),var(--shadow-inset);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.hero-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);}
.hero-card-head b{font-size:15px;font-weight:700;color:#fff;}
.hero-card-list{display:flex;flex-direction:column;}
.hero-card-item{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:15px 0;border-bottom:1px dashed rgba(120,170,255,.16);}
.hero-card-item:last-child{border-bottom:0;padding-bottom:2px;}
.hero-card-item .k{font-size:13.5px;color:var(--text-2);}
.hero-card-item .v{font-size:20px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2;}
.hero-card-item .v small{font-size:12px;font-weight:600;color:var(--text-3);margin-left:3px;}
.hero-card-foot{margin-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.hero-card-foot span{font-size:12px;color:var(--text-3);}

/* ---------- 卖点编号卡 ---------- */
.sell-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.sell-grid .col-b{transform:translateY(32px);}
.num-card{
  position:relative;
  display:flex;gap:20px;
  padding:26px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow),var(--shadow-inset);
  transition:transform .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);
  height:100%;
}
.num-card:hover{transform:translateY(-3px);border-color:rgba(0,216,192,.45);background:var(--glass-strong);}
.num-card .no{
  font-size:30px;font-weight:800;line-height:1;
  color:rgba(0,216,192,.55);
  font-variant-numeric:tabular-nums;
  letter-spacing:0;
  flex:0 0 auto;
}
.num-card h3{margin-bottom:8px;}
.num-card p{font-size:14px;line-height:1.8;color:var(--text-2);}

/* ---------- 演示区 ---------- */
.demo-wrap{
  position:relative;
  overflow:hidden;
  border-radius:26px;
  padding:56px;
  background:linear-gradient(120deg,rgba(8,17,32,.92),rgba(10,24,42,.86));
  border:1px solid var(--line);
}
.demo-wrap::before{
  content:"";
  position:absolute;
  left:-30%;top:-40%;
  width:120%;height:170%;
  background:linear-gradient(105deg,transparent 38%,rgba(0,216,192,.09) 52%,transparent 66%);
  pointer-events:none;
}
.demo-grid{position:relative;display:grid;grid-template-columns:6fr 5fr;gap:48px;align-items:center;}
.point-list{display:flex;flex-direction:column;gap:16px;margin:26px 0 30px;}
.point-list li{display:flex;gap:12px;font-size:15px;line-height:1.8;color:var(--text-2);}
.point-list li::before{
  content:"";
  flex:0 0 auto;
  width:8px;height:8px;margin-top:9px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 12px rgba(0,216,192,.8);
}
.device{
  border-radius:var(--radius-sm);
  overflow:hidden;
  border:1px solid var(--line-strong);
  background:rgba(10,22,38,.9);
  box-shadow:var(--shadow);
}
.device-bar{
  display:flex;align-items:center;gap:7px;
  padding:11px 14px;
  border-bottom:1px solid var(--line);
  background:rgba(140,190,255,.06);
}
.device-bar i{width:9px;height:9px;border-radius:50%;display:block;}
.device-bar i:nth-child(1){background:#FF7B72;}
.device-bar i:nth-child(2){background:var(--amber);}
.device-bar i:nth-child(3){background:var(--brand);}
.device-bar span{margin-left:8px;font-size:11.5px;color:var(--text-3);}
.device-body{aspect-ratio:16/10;overflow:hidden;}
.device-body img{width:100%;height:100%;object-fit:cover;}

/* ---------- 证据区 ---------- */
.proof-bar{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--glass);
  box-shadow:var(--shadow),var(--shadow-inset);
  overflow:hidden;
}
.stat{padding:30px 24px;text-align:center;border-right:1px solid rgba(120,170,255,.14);}
.stat:last-child{border-right:0;}
.stat b{display:block;font-size:clamp(26px,2.6vw,36px);font-weight:800;color:#fff;line-height:1.15;font-variant-numeric:tabular-nums;}
.stat b em{font-style:normal;font-size:15px;color:var(--brand);margin-left:3px;font-weight:700;}
.stat span{display:block;margin-top:8px;font-size:12px;color:var(--text-3);}
.quote-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;margin-top:26px;}
.quote-card{
  display:flex;gap:18px;
  padding:26px;
  border-radius:var(--radius);
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .25s var(--ease),border-color .25s var(--ease);
}
.quote-card:hover{transform:translateY(-3px);border-color:rgba(0,216,192,.4);}
.quote-card.alt{flex-direction:row-reverse;text-align:right;}
.avatar{
  flex:0 0 auto;
  width:56px;height:56px;border-radius:50%;
  overflow:hidden;
  border:1px solid var(--line-strong);
}
.avatar img{width:100%;height:100%;object-fit:cover;}
.quote-card q{
  display:block;
  font-size:14.5px;line-height:1.85;color:var(--text-2);
  quotes:"\201C" "\201D";
}
.quote-card q::before{color:var(--brand);font-size:22px;line-height:1;margin-right:2px;font-weight:700;}
.quote-meta{margin-top:10px;font-size:12px;color:var(--text-3);}

/* ---------- 节奏区（价格卡） ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;align-items:stretch;}
.plan-card{
  position:relative;
  display:flex;flex-direction:column;
  padding:30px 26px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow),var(--shadow-inset);
  transition:transform .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);
}
.plan-card:hover{transform:translateY(-3px);border-color:rgba(0,216,192,.4);background:var(--glass-strong);}
.plan-card.featured{
  transform:scale(1.04);
  border-color:rgba(0,216,192,.55);
  box-shadow:var(--shadow),var(--glow);
  background:linear-gradient(165deg,rgba(0,216,192,.10),rgba(140,190,255,.06));
  z-index:2;
}
.plan-card.featured:hover{transform:scale(1.04) translateY(-3px);}
.plan-badge{position:absolute;top:-11px;right:20px;}
.plan-name{font-size:15px;font-weight:700;color:#fff;}
.plan-desc{font-size:13px;color:var(--text-3);margin-top:6px;min-height:40px;}
.plan-price{display:flex;align-items:baseline;gap:5px;margin:18px 0 4px;}
.plan-price strong{font-size:40px;font-weight:800;line-height:1;color:var(--amber);font-variant-numeric:tabular-nums;}
.plan-price span{font-size:13px;color:var(--text-3);}
.plan-line{height:1px;background:var(--line);margin:18px 0;}
.plan-list{display:flex;flex-direction:column;gap:12px;margin-bottom:26px;}
.plan-list li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:var(--text-2);}
.plan-list li::before{
  content:"";
  flex:0 0 auto;
  width:14px;height:14px;margin-top:4px;
  border-radius:4px;
  background:rgba(0,216,192,.14);
  border:1px solid rgba(0,216,192,.55);
  background-image:linear-gradient(135deg,transparent 46%,var(--brand) 46%,var(--brand) 54%,transparent 54%);
}
.plan-card .btn{margin-top:auto;width:100%;}

/* ---------- 资讯列表 ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.news-card{
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow),var(--shadow-inset);
  transition:transform .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);
  height:100%;
}
.news-card:hover{transform:translateY(-3px);border-color:rgba(0,216,192,.45);background:var(--glass-strong);}
.news-link{display:flex;flex-direction:column;height:100%;}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:rgba(12,26,43,.9);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{display:flex;flex-direction:column;gap:10px;padding:20px 22px 18px;flex:1;}
.news-title{
  font-size:16.5px;font-weight:600;line-height:1.55;color:#fff;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-desc{
  font-size:14px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid rgba(120,170,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:12.5px;color:var(--text-3);
}
.news-time{display:inline-flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums;}
.news-time::before{
  content:"";
  width:11px;height:11px;border-radius:50%;
  border:1.5px solid var(--text-3);
  border-top-color:transparent;
}
.news-read{color:var(--brand);font-weight:600;}
.empty-state{
  grid-column:1/-1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:64px 24px;
  border-radius:var(--radius);
  border:1px dashed var(--line-strong);
  background:rgba(140,190,255,.04);
  text-align:center;
}
.empty-state .ico{
  width:48px;height:48px;border-radius:50%;
  border:1px solid rgba(0,216,192,.4);
  display:flex;align-items:center;justify-content:center;
  color:var(--brand);font-size:20px;
}
.empty-state p{font-size:14px;color:var(--text-2);}

/* ---------- FAQ ---------- */
.faq-panel{
  padding:40px;
  border-radius:24px;
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow),var(--shadow-inset);
}
.faq-list{margin-top:26px;display:flex;flex-direction:column;}
.faq-item{border-bottom:1px solid rgba(120,170,255,.14);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 4px;
  cursor:pointer;
  list-style:none;
  font-size:16.5px;font-weight:600;color:#fff;line-height:1.55;
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-item summary .sign{
  flex:0 0 auto;
  width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:400;line-height:1;color:var(--text-2);
  transition:transform .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.faq-item[open] summary .sign{transform:rotate(45deg);color:var(--brand);border-color:rgba(0,216,192,.6);}
.faq-answer{padding:0 4px 22px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:46px 44px;
  border-radius:24px;
  background:linear-gradient(120deg,rgba(0,216,192,.10),rgba(44,125,255,.10));
  border:1px solid rgba(0,216,192,.32);
  box-shadow:var(--shadow);
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background:radial-gradient(circle at 88% 50%,rgba(0,216,192,.20),transparent 58%);
  pointer-events:none;
}
.cta-band h2{position:relative;font-size:clamp(22px,2.1vw,28px);}
.cta-band p{position:relative;margin-top:10px;font-size:15px;color:var(--text-2);max-width:560px;}
.cta-band .btn{position:relative;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,17,32,.6),rgba(5,11,20,.95));
  padding:72px 0 34px;
  margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand-line1{font-size:17px;}
.footer-brand .brand-line2{font-size:13px;}
.footer-desc{margin-top:14px;font-size:13.5px;line-height:1.9;color:var(--text-3);max-width:280px;}
.footer-url{margin-top:14px;font-size:12.5px;color:var(--text-2);font-variant-numeric:tabular-nums;}
.footer-title{font-size:13px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:13.5px;color:var(--text-3);transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block;}
.footer-links a:hover{color:var(--brand);transform:translateX(2px);}
.footer-info p{font-size:13px;line-height:1.9;color:var(--text-3);margin-bottom:8px;}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(120,170,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:12px;color:var(--text-3);line-height:1.8;}

/* ---------- 浮动 CTA / 返回顶部 ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:55;
  display:inline-flex;align-items:center;gap:10px;
  height:50px;padding:0 22px;
  border-radius:999px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04141A;font-size:14px;font-weight:700;
  box-shadow:var(--glow),0 8px 24px rgba(0,0,0,.4);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{filter:brightness(1.08);color:#04141A;}
.float-cta .close{
  width:22px;height:22px;border-radius:50%;
  background:rgba(4,20,26,.22);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;line-height:1;
}
.back-top{
  position:fixed;right:28px;bottom:90px;z-index:55;
  width:44px;height:44px;border-radius:50%;
  background:rgba(12,26,43,.92);
  border:1px solid var(--line-strong);
  color:var(--text-2);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s,color .2s,border-color .2s;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.back-top:hover{color:var(--brand);border-color:rgba(0,216,192,.6);}
.mobile-float{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:55;
  height:56px;
  align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:#04141A;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  border-top:1px solid rgba(0,216,192,.7);
  box-shadow:0 -6px 22px rgba(0,216,192,.22);
}

/* ---------- 入场动画 ---------- */
.reveal-up{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal-up.in{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal-up{opacity:1;transform:none;transition:none;}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 26px;}
  .section{padding:80px 0;}
}
@media (max-width:1023px){
  .side-nav{display:none;}
  .mobile-bar{display:flex;}
  .site-main{margin-left:0;padding-top:60px;}
  .hero{min-height:72vh;padding:64px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-sub{max-width:none;}
  .demo-grid{grid-template-columns:1fr;gap:32px;}
  .demo-wrap{padding:34px;}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .plan-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .plan-card.featured{transform:none;}
  .plan-card.featured:hover{transform:translateY(-3px);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .quote-grid{grid-template-columns:1fr;}
  .quote-card.alt{flex-direction:row;text-align:left;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 30px;}
  .float-cta,.back-top{display:none;}
  .mobile-float{display:flex;}
  .site-footer{padding-bottom:88px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:64px 0;}
  .sell-grid{grid-template-columns:1fr;}
  .sell-grid .col-b{transform:none;}
  .proof-bar{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat{border-right:0;border-bottom:1px solid rgba(120,170,255,.14);padding:22px 16px;}
  .stat:nth-child(odd){border-right:1px solid rgba(120,170,255,.14);}
  .stat:nth-last-child(-n+2){border-bottom:0;}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  .plan-grid{grid-template-columns:1fr;}
  .faq-panel{padding:26px 20px;}
  .news-body{padding:16px;}
  .num-card{padding:22px;gap:14px;}
}
@media (max-width:639px){
  body{font-size:15px;}
  .hero{padding:48px 0 52px;min-height:auto;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;max-width:360px;}
  .hero-card{padding:22px 20px;}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-desc{max-width:none;}
  .demo-wrap{padding:24px 20px;}
  .cta-band{padding:30px 22px;}
  .cta-band .btn{width:100%;max-width:360px;}
  .hero-tags{gap:6px;}
  .hero-tags a{font-size:12px;padding:5px 11px;}
}

/* roulang page: article */
:root{
  --bg:#050B14;
  --bg-soft:#081120;
  --surface:#0C1A2B;
  --glass:rgba(140,190,255,0.07);
  --glass-strong:rgba(140,190,255,0.12);
  --line:rgba(120,170,255,0.18);
  --brand:#00D8C0;
  --brand-2:#2C7DFF;
  --amber:#FFB65C;
  --text:#E8F1FF;
  --text-2:#A3B6CE;
  --text-3:#6B7F99;
  --radius:18px;
  --radius-sm:14px;
  --radius-xs:12px;
  --shadow:0 8px 28px rgba(3,10,22,.55);
  --glow:0 0 24px rgba(0,216,192,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:radial-gradient(circle at 12% 0%,rgba(0,216,192,.10),transparent 42%),radial-gradient(circle at 88% 8%,rgba(44,125,255,.10),transparent 40%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
p{margin:0 0 18px}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:0}
ul,ol{margin:0 0 18px;padding:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

.page{margin-left:240px;position:relative;z-index:1;min-height:100vh;display:flex;flex-direction:column}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;width:240px;height:100vh;
  display:flex;flex-direction:column;gap:20px;
  padding:28px 20px 24px;
  background:rgba(8,17,32,.86);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-right:1px solid var(--line);
  box-shadow:1px 0 0 rgba(0,216,192,.08);
  overflow-y:auto;
  z-index:60;
}
.brand{display:flex;flex-direction:column;gap:2px;position:relative;padding-left:15px}
.brand-dot{position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:0 0 12px rgba(0,216,192,.85)}
.brand-line1{font-size:17px;font-weight:800;color:#fff;line-height:1.3}
.brand-line2{font-size:15px;font-weight:700;line-height:1.3;background:linear-gradient(135deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.brand-sub{font-size:11px;color:var(--text-3);margin-top:5px;line-height:1.5}
.nav-group{display:flex;flex-direction:column;gap:4px}
.nav-label{font-size:11px;color:var(--text-3);padding-left:14px;margin-bottom:6px}
.nav-item{
  position:relative;display:flex;align-items:center;min-height:44px;
  padding:9px 12px 9px 15px;border-radius:12px;
  font-size:14px;color:var(--text-2);
  transition:color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:3px;background:var(--brand);
  transition:height .2s var(--ease);
}
.nav-item:hover{color:#fff;background:rgba(0,216,192,.06);transform:translateX(2px)}
.nav-item.active{color:#fff;font-weight:600;background:rgba(0,216,192,.10)}
.nav-item.active::before{height:18px;box-shadow:0 0 10px rgba(0,216,192,.7)}
.side-divider{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent)}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:14px}
.side-info{font-size:12px;color:var(--text-3);line-height:1.7;padding:14px;border:1px solid var(--line);border-radius:var(--radius-xs);background:var(--glass)}
.side-info strong{display:block;color:var(--text-2);font-size:12.5px;margin-bottom:4px}
.side-cta .btn{width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:700;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),filter .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04141A;box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:var(--glass);color:var(--text);border-color:var(--line);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:var(--glass-strong);border-color:rgba(0,216,192,.45);transform:translateY(-1px)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14px;font-weight:600}
.link-arrow span{transition:transform .2s var(--ease)}
.link-arrow:hover span{transform:translateX(3px)}

/* ---------- 移动端顶栏与抽屉 ---------- */
.mobile-bar{display:none}
.drawer-mask{position:fixed;inset:0;background:rgba(3,8,16,.62);backdrop-filter:blur(2px);z-index:80;border:0}
.nav-drawer{
  position:fixed;top:0;right:0;height:100vh;width:84vw;max-width:340px;
  background:rgba(8,17,32,.97);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .28s var(--ease);
  z-index:90;display:flex;flex-direction:column;gap:18px;padding:24px 20px;overflow-y:auto;
}
.nav-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{width:44px;height:44px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--text-2)}
.drawer-nav{display:flex;flex-direction:column;gap:2px}
.drawer-nav .nav-item{min-height:48px;font-size:15px}

/* ---------- 文章首屏 ---------- */
.article-hero{
  position:relative;
  padding:52px 0 40px;
  background-image:linear-gradient(180deg,rgba(5,11,20,.74),rgba(5,11,20,.95)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.article-hero::after{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,216,192,.6),transparent);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:22px}
.breadcrumb a{color:var(--text-3);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(120,170,255,.45)}
.breadcrumb .current{color:var(--text);font-weight:600}
.cate-strip{display:flex;align-items:center;gap:10px;margin-bottom:16px;flex-wrap:wrap}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;
  background:rgba(0,216,192,.10);color:var(--brand);border:1px solid rgba(0,216,192,.35);
}
.badge-violet{background:rgba(44,125,255,.12);color:#8CB8FF;border-color:rgba(44,125,255,.38)}
.cate-strip .strip-text{font-size:13px;color:var(--text-3)}
.article-title{
  font-size:clamp(26px,2.6vw,36px);
  line-height:1.32;font-weight:800;color:#fff;
  max-width:960px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;font-size:13px;color:var(--text-3)}
.article-meta .meta-dot{width:1px;height:12px;background:rgba(120,170,255,.32);display:inline-block}
.article-meta .num{color:var(--text-2)}

/* ---------- 正文布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:56px;align-items:start;
  padding:48px 0 24px;
}
.article-main{min-width:0}
.article-body{
  max-width:800px;
  font-size:17px;line-height:1.9;color:rgba(232,241,255,.88);
  overflow-wrap:break-word;word-break:break-word;
}
.article-body p{margin:0 0 18px}
.article-body h2{
  position:relative;
  font-size:24px;font-weight:700;color:#fff;
  margin:40px 0 16px;padding-left:16px;line-height:1.45;scroll-margin-top:88px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;width:4px;height:18px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),var(--brand-2));
  box-shadow:0 0 12px rgba(0,216,192,.6);
}
.article-body h3{
  font-size:20px;font-weight:600;color:#fff;margin:30px 0 12px;line-height:1.5;scroll-margin-top:88px;
}
.article-body h4{font-size:17px;font-weight:600;color:#fff;margin:22px 0 10px}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(0,216,192,.35);transition:border-color .2s var(--ease),color .2s var(--ease)}
.article-body a:hover{border-bottom-color:var(--brand)}
.article-body strong{color:#fff;font-weight:700}
.article-body blockquote{
  margin:24px 0;padding:20px 22px;
  background:var(--glass);border-left:3px solid var(--brand);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--text-2);font-size:16px;line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:0;list-style:none}
.article-body ul li,.article-body ol li{position:relative;padding-left:24px;margin-bottom:10px;line-height:1.9}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:12px;width:7px;height:7px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 10px rgba(0,216,192,.55);
}
.article-body ol{counter-reset:artnum}
.article-body ol li{counter-increment:artnum;padding-left:30px}
.article-body ol li::before{
  content:counter(artnum,decimal-leading-zero);
  position:absolute;left:0;top:1px;
  font-size:13px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.article-body img{border-radius:var(--radius-sm);margin:24px auto;width:100%;height:auto;object-fit:cover}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:12px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body table{margin:24px 0;font-size:15px;border-radius:var(--radius-sm);overflow:hidden;background:var(--glass)}
.article-body thead th{
  background:rgba(140,190,255,.14);color:#fff;font-weight:700;font-size:14px;
  padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);
}
.article-body tbody td{padding:11px 14px;border-bottom:1px solid rgba(120,170,255,.10);color:var(--text-2)}
.article-body tbody tr:nth-child(even){background:rgba(140,190,255,.05)}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body hr{border:0;height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);margin:32px 0}

/* ---------- 侧栏目录 ---------- */
.toc{position:sticky;top:32px;display:flex;flex-direction:column;gap:14px}
.toc-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 16px;backdrop-filter:blur(14px);box-shadow:var(--shadow);
}
.toc-title{font-size:13px;font-weight:700;color:#fff;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.toc-title::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(0,216,192,.8)}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:60vh;overflow-y:auto}
.toc-link{
  position:relative;display:block;padding:7px 10px 7px 12px;border-radius:8px;
  font-size:13px;color:var(--text-3);line-height:1.5;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.toc-link::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:2px;height:0;background:var(--brand);border-radius:2px;transition:height .2s var(--ease);
}
.toc-link:hover{color:var(--text);background:rgba(0,216,192,.06)}
.toc-link.active{color:var(--brand);background:rgba(0,216,192,.08);font-weight:600}
.toc-link.active::before{height:14px}
.toc-hint{font-size:12px;color:var(--text-3);line-height:1.7;margin-top:12px;padding-top:12px;border-top:1px solid rgba(120,170,255,.12)}

/* ---------- 文末 ---------- */
.article-foot{max-width:800px;margin-top:36px}
.article-figure{margin:36px 0 0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow)}
.article-figure .fig-frame{aspect-ratio:16/8;overflow:hidden}
.article-figure img{width:100%;height:100%;object-fit:cover}
.article-figure figcaption{padding:12px 18px;font-size:12.5px;color:var(--text-3);border-top:1px solid rgba(120,170,255,.12)}
.back-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin:36px 0 8px}

.section-block{padding:44px 0 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:22px}
.section-title{font-size:22px;font-weight:700;color:#fff;position:relative;padding-left:14px}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;width:4px;height:18px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),var(--brand-2));
}
.section-desc{font-size:14px;color:var(--text-3);max-width:520px}
.rel-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.rel-card{
  display:flex;flex-direction:column;gap:10px;
  padding:20px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--line);
  transition:transform .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);
}
.rel-card:hover{transform:translateY(-3px);border-color:rgba(0,216,192,.45);background:var(--glass-strong)}
.rel-card h3{font-size:16px;font-weight:600;color:#fff;line-height:1.55}
.rel-card .rel-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--text-3);margin-top:auto}

.cta-band{
  margin:56px 0 0;
  padding:40px 36px;border-radius:22px;
  background:linear-gradient(135deg,rgba(0,216,192,.10),rgba(44,125,255,.10)),var(--surface);
  border:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  position:relative;overflow:hidden;box-shadow:var(--shadow);
}
.cta-band::before{
  content:"";position:absolute;inset:-40% 40% 40% -20%;
  background:radial-gradient(circle,rgba(0,216,192,.18),transparent 62%);
  pointer-events:none;
}
.cta-band h2{font-size:24px;color:#fff;position:relative}
.cta-band p{margin:8px 0 0;font-size:14.5px;color:var(--text-2);position:relative;max-width:560px}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:72px;padding:56px 0 28px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,17,32,.55),rgba(5,11,20,.95));
  position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand .brand{padding-left:0}
.footer-desc{font-size:13.5px;color:var(--text-3);line-height:1.8;margin:14px 0 10px}
.footer-url{font-size:12.5px;color:var(--text-3);margin:0;font-variant-numeric:tabular-nums}
.footer-title{font-size:13px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13.5px;color:var(--text-3);transition:color .2s var(--ease),padding-left .2s var(--ease)}
.footer-links a:hover{color:var(--brand);padding-left:3px}
.footer-info p{font-size:13px;color:var(--text-3);line-height:1.8;margin:0 0 10px}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(120,170,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
}
.footer-bottom p{margin:0;font-size:12px;color:var(--text-3)}

/* ---------- 浮动返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(12,26,43,.92);border:1px solid var(--line);color:var(--brand);
  font-size:18px;box-shadow:var(--shadow);z-index:70;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:rgba(0,216,192,.5);box-shadow:var(--glow)}

/* ---------- 空态 ---------- */
.empty-state{
  max-width:640px;margin:0 auto;text-align:center;
  padding:56px 28px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--line);
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(0,216,192,.10);border:1px solid rgba(0,216,192,.35);
  color:var(--brand);font-size:22px;font-weight:700;
}
.empty-state h2{font-size:20px;color:#fff;margin-bottom:10px}
.empty-state p{font-size:14px;color:var(--text-3);margin-bottom:22px}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;padding-top:40px}
  .toc{display:none}
}
@media (max-width:1023px){
  .side-nav{display:none}
  .page{margin-left:0;padding-top:60px}
  .mobile-bar{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    position:fixed;top:0;left:0;right:0;height:60px;padding:0 16px;
    background:rgba(8,17,32,.92);backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);z-index:75;
  }
  .brand-mini{display:flex;flex-direction:column;line-height:1.2;padding-left:12px;position:relative}
  .brand-mini::before{
    content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
    width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(0,216,192,.8);
  }
  .brand-mini .l1{font-size:13.5px;font-weight:800;color:#fff}
  .brand-mini .l2{font-size:11.5px;font-weight:700;color:var(--brand)}
  .nav-toggle{
    width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  }
  .nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text)}
  .container{padding:0 24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .article-hero{padding:36px 0 30px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:21px;margin-top:32px}
  .article-body h3{font-size:18px}
  .rel-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .cta-band{padding:28px 22px;border-radius:18px}
  .cta-band h2{font-size:20px}
  .cta-band .btn{width:100%;max-width:360px}
  .section-title{font-size:19px}
  .to-top{right:16px;bottom:20px}
}
@media (max-width:520px){
  .article-title{font-size:22px}
  .article-meta{font-size:12px;gap:9px}
  .btn{height:44px;padding:0 20px;font-size:14px}
  .breadcrumb{font-size:12.5px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --bg:#050B14;
  --bg-soft:#081120;
  --surface:#0C1A2B;
  --glass:rgba(140,190,255,.07);
  --glass-strong:rgba(140,190,255,.12);
  --line:rgba(120,170,255,.18);
  --brand:#00D8C0;
  --brand-2:#2C7DFF;
  --amber:#FFB65C;
  --text:#E8F1FF;
  --text-2:#A3B6CE;
  --text-3:#6B7F99;
  --radius:18px;
  --radius-sm:14px;
  --shadow:0 8px 28px rgba(3,10,22,.55);
  --grad:linear-gradient(135deg,#00D8C0 0%,#2C7DFF 100%);
  --nav-w:240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:
    radial-gradient(880px 420px at 12% -6%,rgba(0,216,192,.10),transparent 62%),
    radial-gradient(760px 400px at 92% 4%,rgba(44,125,255,.10),transparent 64%),
    var(--bg);
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:0;list-style:none;}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--brand);}
img{max-width:100%;display:block;border:0;}
button{font-family:inherit;}
a:focus-visible,button:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:8px;}
::selection{background:rgba(0,216,192,.28);color:#fff;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 32px;
}
.page-wrap{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column;}
main{flex:1 1 auto;}

/* ---------- 移动端顶栏 ---------- */
.mobile-bar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:60px;
  z-index:90;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:0 16px;
  background:rgba(8,17,32,.9);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.mobile-brand{font-size:15px;font-weight:800;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.mobile-brand em{font-style:normal;color:var(--brand);}
.nav-toggle{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text);
  cursor:pointer;
  font-size:13px;
  transition:background .2s,border-color .2s;
}
.nav-toggle:hover{background:var(--glass-strong);border-color:rgba(0,216,192,.45);}
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(3,8,16,.66);
  backdrop-filter:blur(2px);
  opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
  z-index:85;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
body.drawer-open{overflow:hidden;}

/* ---------- 左栏导航 ---------- */
.side-nav{
  position:fixed;
  top:0;left:0;
  width:var(--nav-w);
  height:100vh;
  display:flex;
  flex-direction:column;
  gap:20px;
  padding:28px 20px 24px;
  background:rgba(8,17,32,.84);
  backdrop-filter:blur(20px);
  border-right:1px solid rgba(0,216,192,.28);
  box-shadow:inset -1px 0 0 rgba(0,216,192,.12);
  overflow-y:auto;
  z-index:88;
}
.brand{position:relative;display:block;padding-left:15px;}
.brand-dot{
  position:absolute;left:0;top:8px;
  width:8px;height:8px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 12px rgba(0,216,192,.85);
}
.brand-line1{display:block;font-size:16px;font-weight:800;color:var(--text);line-height:1.35;}
.brand-line2{display:block;font-size:16px;font-weight:800;color:var(--brand);line-height:1.35;}
.brand-sub{display:block;margin-top:8px;font-size:11px;color:var(--text-3);line-height:1.6;}
.nav-group{display:flex;flex-direction:column;gap:4px;}
.nav-label{display:block;padding:0 12px 8px;font-size:11px;color:var(--text-3);}
.nav-item{
  position:relative;
  display:block;
  padding:11px 12px;
  border-radius:10px;
  font-size:14px;
  color:var(--text-2);
  transition:color .2s ease,background .2s ease,transform .2s ease;
}
.nav-item::before{
  content:"";
  position:absolute;left:0;top:50%;
  width:3px;height:0;
  border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 10px rgba(0,216,192,.75);
  transform:translateY(-50%);
  transition:height .22s ease;
}
.nav-item:hover{color:#fff;background:rgba(0,216,192,.06);transform:translateX(2px);}
.nav-item:active{background:rgba(0,216,192,.12);}
.nav-item.active{color:#fff;background:rgba(0,216,192,.11);font-weight:600;}
.nav-item.active::before{height:18px;}
.side-divider{height:1px;background:linear-gradient(90deg,rgba(0,216,192,.36),rgba(120,170,255,.06));}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:14px;}
.side-info{
  font-size:12px;
  line-height:1.75;
  color:var(--text-3);
  padding:14px;
  border-radius:12px;
  background:var(--glass);
  border:1px solid var(--line);
}
.side-info strong{display:block;margin-bottom:4px;font-size:12px;color:var(--text-2);font-weight:700;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:15px;font-weight:700;
  cursor:pointer;
  transition:transform .2s ease,filter .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{background:var(--grad);color:#04141A;box-shadow:0 0 24px rgba(0,216,192,.35);}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);color:#04141A;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:var(--glass);border-color:var(--line);color:var(--text);}
.btn-ghost:hover{background:var(--glass-strong);border-color:rgba(0,216,192,.45);color:#fff;transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 18px;font-size:13px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);
  min-height:44px;
}
.link-arrow span{transition:transform .2s ease;}
.link-arrow:hover span{transform:translateX(3px);}
.btn-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:26px;}

/* ---------- 通用徽章/小字 ---------- */
.badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 12px;
  border-radius:999px;
  font-size:12px;font-weight:600;
  background:rgba(0,216,192,.1);
  border:1px solid rgba(0,216,192,.35);
  color:var(--brand);
  white-space:nowrap;
}
.badge-violet{
  background:rgba(44,125,255,.12);
  border-color:rgba(44,125,255,.4);
  color:#8FB6FF;
}
.eyebrow{font-size:14px;color:var(--text-2);line-height:1.7;}

/* ---------- 分类首屏（图文分栏） ---------- */
.cat-hero{
  position:relative;
  padding:76px 0 60px;
  overflow:hidden;
  border-bottom:1px solid rgba(120,170,255,.12);
}
.cat-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  opacity:.16;
  z-index:0;
}
.cat-hero::after{
  content:"";
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(5,11,20,.86),rgba(5,11,20,.96)),
    repeating-linear-gradient(0deg,rgba(120,170,255,.05) 0 1px,transparent 1px 42px),
    repeating-linear-gradient(90deg,rgba(120,170,255,.05) 0 1px,transparent 1px 42px);
  z-index:1;
}
.cat-hero .container{position:relative;z-index:2;}
.hero-grid{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:52px;
  align-items:center;
}
.hero-copy h1{
  margin-top:16px;
  font-size:clamp(30px,2.9vw,44px);
  line-height:1.2;
  font-weight:800;
  color:var(--text);
}
.hero-copy h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-lead{margin-top:16px;font-size:14px;color:var(--text-3);}
.hero-copy p.hero-desc{margin-top:16px;font-size:16px;color:var(--text-2);line-height:1.9;max-width:44ch;}
.hero-visual{
  position:relative;
  border-radius:var(--radius-sm);
  overflow:hidden;
  aspect-ratio:16/10;
  border:1px solid rgba(120,170,255,.3);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);
  background:linear-gradient(160deg,rgba(0,216,192,.14),rgba(44,125,255,.1));
}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-visual figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:14px 16px;
  font-size:12px;
  color:#D6E4F7;
  background:linear-gradient(180deg,transparent,rgba(4,10,18,.86));
}

/* ---------- 数据条 ---------- */
.stat-strip{
  margin-top:44px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  backdrop-filter:blur(18px);
}
.stat-cell{
  padding:22px 20px;
  border-right:1px solid var(--line);
}
.stat-cell:last-child{border-right:0;}
.stat-num{
  display:block;
  font-size:30px;font-weight:800;
  font-variant-numeric:tabular-nums;
  line-height:1.2;
  color:var(--brand);
}
.stat-label{display:block;margin-top:6px;font-size:12px;color:var(--text-3);}

/* ---------- 板块通用 ---------- */
.section{padding:84px 0;scroll-margin-top:88px;}
.section-alt{background:linear-gradient(180deg,rgba(8,17,32,.72),rgba(5,11,20,0));border-top:1px solid rgba(120,170,255,.1);}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{
  font-size:clamp(25px,2.4vw,32px);
  font-weight:800;
  line-height:1.3;
  margin-top:12px;
}
.section-head p{margin-top:12px;color:var(--text-2);font-size:15.5px;}

/* ---------- 图文条目卡 ---------- */
.entry-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.entry-card{
  display:grid;
  grid-template-columns:150px minmax(0,1fr);
  gap:18px;
  padding:18px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .25s cubic-bezier(.22,.61,.36,1),border-color .25s,background .25s;
}
.entry-card:hover{
  transform:translateY(-3px);
  border-color:rgba(0,216,192,.45);
  background:var(--glass-strong);
}
.thumb{
  position:relative;
  aspect-ratio:4/3;
  border-radius:12px;
  overflow:hidden;
  background:rgba(12,26,43,.9);
}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s cubic-bezier(.22,.61,.36,1);}
.entry-card:hover .thumb img{transform:scale(1.03);}
.entry-body h3{font-size:17px;font-weight:700;line-height:1.5;color:var(--text);}
.entry-body p{margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.8;}
.entry-tag{margin-top:12px;font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;}

/* ---------- 核对清单 ---------- */
.check-panel{
  display:grid;
  grid-template-columns:0.9fr 1.1fr;
  gap:40px;
  padding:36px;
  border-radius:var(--radius);
  background:linear-gradient(150deg,rgba(0,216,192,.08),rgba(12,26,43,.7) 55%);
  border:1px solid var(--line);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
}
.check-panel h2{font-size:clamp(24px,2.2vw,30px);font-weight:800;line-height:1.3;margin-top:12px;}
.check-panel > div > p{margin-top:14px;color:var(--text-2);font-size:15px;}
.check-list{display:flex;flex-direction:column;gap:14px;}
.check-item{
  display:grid;
  grid-template-columns:26px minmax(0,1fr);
  gap:12px;
  align-items:flex-start;
  padding:14px 16px;
  border-radius:12px;
  background:rgba(6,14,26,.62);
  border:1px solid rgba(120,170,255,.14);
  transition:border-color .2s ease,background .2s ease;
}
.check-item:hover{border-color:rgba(0,216,192,.4);background:rgba(8,17,32,.86);}
.check-mark{
  width:22px;height:22px;
  margin-top:2px;
  border-radius:50%;
  border:1.5px solid rgba(0,216,192,.6);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--brand);
  font-size:12px;
  line-height:1;
}
.check-item h3{font-size:15px;font-weight:700;color:var(--text);}
.check-item p{margin-top:4px;font-size:13.5px;color:var(--text-2);line-height:1.75;}

/* ---------- FAQ ---------- */
.faq-panel{
  padding:12px 30px 18px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
}
.faq-panel > h2{font-size:clamp(23px,2.2vw,29px);font-weight:800;padding:22px 0 16px;line-height:1.35;}
.faq-item{border-top:1px solid rgba(120,170,255,.14);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;
  background:transparent;border:0;
  color:var(--text);
  font-size:16px;font-weight:600;
  text-align:left;
  cursor:pointer;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  position:relative;
  flex:0 0 auto;
  width:24px;height:24px;
  border-radius:50%;
  border:1px solid rgba(120,170,255,.4);
  transition:transform .25s ease,border-color .25s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;left:50%;top:50%;
  background:var(--text-2);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:background .25s ease;
}
.faq-icon::before{width:10px;height:1.5px;}
.faq-icon::after{width:1.5px;height:10px;}
.faq-item.open .faq-icon{transform:rotate(45deg);border-color:rgba(0,216,192,.7);}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:var(--brand);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease;
}
.faq-item.open .faq-a{max-height:420px;}
.faq-a p{padding:0 0 20px;font-size:15px;color:var(--text-2);line-height:1.85;max-width:74ch;}

/* ---------- CTA 带 ---------- */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding:36px 40px;
  border-radius:var(--radius);
  background:
    radial-gradient(600px 220px at 18% 0%,rgba(0,216,192,.16),transparent 70%),
    rgba(12,26,43,.82);
  border:1px solid var(--line);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
}
.cta-band h2{font-size:clamp(22px,2.1vw,28px);font-weight:800;line-height:1.35;}
.cta-band p{margin-top:8px;font-size:14.5px;color:var(--text-2);}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:20px;
  border-top:1px solid rgba(120,170,255,.16);
  background:linear-gradient(180deg,rgba(8,17,32,.95),rgba(4,9,17,.98));
  padding:56px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1.2fr 1.3fr;
  gap:36px;
}
.footer-brand .brand{padding-left:15px;}
.footer-desc{margin-top:16px;font-size:13.5px;color:var(--text-2);line-height:1.85;max-width:34ch;}
.footer-url{margin-top:12px;font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.footer-title{font-size:13px;font-weight:700;color:var(--text);margin-bottom:14px;}
.footer-links{display:flex;flex-direction:column;gap:2px;}
.footer-links a{
  display:inline-block;
  padding:6px 0;
  font-size:13.5px;
  color:var(--text-2);
  transition:color .2s ease,transform .2s ease;
}
.footer-links a:hover{color:var(--brand);transform:translateX(2px);}
.footer-info p{font-size:13px;color:var(--text-3);line-height:1.85;margin-bottom:10px;}
.footer-bottom{
  margin-top:38px;
  padding-top:20px;
  border-top:1px solid rgba(120,170,255,.14);
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
}
.footer-bottom p{font-size:12px;color:var(--text-3);line-height:1.8;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 24px;}
  .hero-grid{gap:36px;}
}
@media (max-width:1023px){
  .mobile-bar{display:flex;}
  .page-wrap{margin-left:0;padding-top:60px;}
  .side-nav{
    width:84vw;
    max-width:340px;
    height:100vh;
    top:0;
    padding:76px 18px 24px;
    transform:translateX(104%);
    transition:transform .28s cubic-bezier(.22,.61,.36,1);
    border-right:1px solid rgba(0,216,192,.32);
    z-index:95;
  }
  .side-nav.is-open{transform:translateX(0);}
  .nav-item{padding:12px;min-height:48px;display:flex;align-items:center;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-copy p.hero-desc{max-width:none;}
  .cat-hero{padding:52px 0 44px;}
  .stat-strip{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);}
  .entry-grid{grid-template-columns:1fr;}
  .check-panel{grid-template-columns:1fr;gap:26px;padding:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .section{padding:64px 0;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  body{font-size:15px;}
  .cat-hero{padding:40px 0 36px;}
  .hero-copy h1{font-size:clamp(26px,7vw,32px);}
  .stat-num{font-size:25px;}
  .entry-card{grid-template-columns:1fr;gap:14px;}
  .thumb{aspect-ratio:16/9;}
  .btn{height:44px;padding:0 22px;font-size:14.5px;width:100%;max-width:360px;}
  .btn-row{flex-direction:column;align-items:stretch;}
  .link-arrow{justify-content:center;}
  .faq-panel{padding:8px 18px 14px;}
  .faq-q{font-size:15px;}
  .faq-a p{font-size:14.5px;}
  .cta-band{padding:26px 22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .section{padding:52px 0;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --bg:#050B14;
  --bg-2:#081120;
  --bg-3:#0C1A2B;
  --glass:rgba(140,190,255,.07);
  --glass-2:rgba(140,190,255,.12);
  --line:rgba(120,170,255,.18);
  --line-soft:rgba(120,170,255,.1);
  --brand:#00D8C0;
  --brand-2:#2C7DFF;
  --amber:#FFB65C;
  --text:#E8F1FF;
  --text-2:#A3B6CE;
  --text-3:#6B7F99;
  --r-card:18px;
  --r-img:14px;
  --r-btn:999px;
  --shadow-card:0 8px 28px rgba(3,10,22,.55), inset 0 1px 0 rgba(255,255,255,.06);
  --glow:0 0 24px rgba(0,216,192,.35);
  --nav-w:240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px}

/* ---------- 左侧导航 ---------- */
.side-nav{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--nav-w);
  z-index:60;
  display:flex;
  flex-direction:column;
  padding:26px 18px 22px;
  background:rgba(6,14,26,.88);
  -webkit-backdrop-filter:blur(20px);
  backdrop-filter:blur(20px);
  border-right:1px solid var(--line);
  box-shadow:1px 0 0 rgba(0,216,192,.12);
  overflow-y:auto;
  scrollbar-width:thin;
}
.nav-top{display:block;flex:none}
.brand{position:relative;display:block;padding-left:14px}
.brand-dot{
  position:absolute;left:0;top:5px;
  width:6px;height:26px;border-radius:4px;
  background:linear-gradient(180deg,var(--brand),var(--brand-2));
  box-shadow:0 0 12px rgba(0,216,192,.7);
}
.brand-line1,.brand-line2{display:block;font-size:19px;font-weight:800;line-height:1.25}
.brand-line2{color:var(--brand)}
.brand-sub{display:block;margin-top:8px;font-size:12px;color:var(--text-3);line-height:1.6}
.nav-drawer{display:flex;flex-direction:column;flex:1;min-height:0}
.nav-group{display:block;margin-top:6px}
.nav-label{display:block;font-size:11px;color:var(--text-3);margin:24px 0 8px;padding-left:4px}
.nav-item{
  position:relative;
  display:block;
  padding:11px 12px 11px 16px;
  border-radius:10px;
  font-size:14px;
  line-height:1.5;
  color:var(--text-2);
  transition:color .2s var(--ease),transform .2s var(--ease),background .2s var(--ease);
}
.nav-item::before{
  content:"";
  position:absolute;left:0;top:50%;
  width:3px;height:0;border-radius:2px;
  background:var(--brand);
  transform:translateY(-50%);
  transition:height .2s var(--ease);
}
.nav-item:hover{color:#fff;transform:translateX(2px)}
.nav-item.active{color:#fff;background:rgba(0,216,192,.09)}
.nav-item.active::before{height:18px;box-shadow:0 0 10px rgba(0,216,192,.7)}
.side-divider{height:1px;background:var(--line);margin:22px 0 0}
.side-foot{margin-top:auto;padding-top:22px}
.side-info{font-size:12.5px;line-height:1.75;color:var(--text-3)}
.side-info strong{display:block;color:var(--text-2);font-size:13px;margin-bottom:6px}
.side-cta{margin-top:16px}
.nav-toggle{
  display:none;
  align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--text);}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-veil{
  position:fixed;inset:0;z-index:65;
  background:rgba(3,8,16,.66);
  -webkit-backdrop-filter:blur(2px);
  backdrop-filter:blur(2px);
  opacity:0;pointer-events:none;
  transition:opacity .3s var(--ease);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;
  white-space:nowrap;
  transition:transform .2s var(--ease),filter .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04141A;
  box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.08)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text);
}
.btn-ghost:hover{transform:translateY(-1px);border-color:rgba(0,216,192,.45);background:var(--glass-2)}
.btn-sm{height:40px;padding:0 18px;font-size:13px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--text-2);
  transition:color .2s var(--ease);
}
.link-arrow i{font-style:normal;transition:transform .2s var(--ease)}
.link-arrow:hover{color:var(--brand)}
.link-arrow:hover i{transform:translateX(3px)}

/* ---------- 布局 ---------- */
main{margin-left:var(--nav-w);display:block}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.section{padding:88px 0;border-top:1px solid var(--line-soft);scroll-margin-top:90px}
.section.no-line{border-top:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:24px;padding:0 12px;border-radius:999px;
  font-size:12px;letter-spacing:0;
  color:var(--brand);
  background:rgba(0,216,192,.1);
  border:1px solid rgba(0,216,192,.3);
}
.eyebrow.purple{color:#9CC0FF;background:rgba(44,125,255,.12);border-color:rgba(44,125,255,.34)}
.eyebrow.amber{color:var(--amber);background:rgba(255,182,92,.1);border-color:rgba(255,182,92,.32)}
.section-title{
  font-size:clamp(24px,2.4vw,32px);
  font-weight:700;line-height:1.3;
  margin-top:14px;
}
.section-desc{margin-top:12px;font-size:15px;line-height:1.9;color:var(--text-2)}
.section-head{max-width:780px}
.section-head.center{margin:0 auto;text-align:center}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding:104px 0 76px;
  text-align:center;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.3;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:
    radial-gradient(circle at 18% 18%,rgba(0,216,192,.16),transparent 46%),
    radial-gradient(circle at 84% 8%,rgba(44,125,255,.18),transparent 46%),
    linear-gradient(180deg,rgba(5,11,20,.62),rgba(5,11,20,.94));
}
.page-hero .container{position:relative;z-index:1}
.page-hero h1{
  margin-top:20px;
  font-size:clamp(28px,3.2vw,46px);
  font-weight:800;
  line-height:1.22;
}
.page-hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{
  margin:16px auto 0;
  max-width:660px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.85;
}
.hero-actions{
  margin-top:28px;
  display:flex;flex-wrap:wrap;gap:14px;
  align-items:center;justify-content:center;
}
.hero-note{margin-top:18px;font-size:12px;color:var(--text-3)}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-top:52px;padding-left:58px}
.timeline::before{
  content:"";
  position:absolute;left:18px;top:10px;bottom:26px;
  width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),rgba(44,125,255,.42),rgba(44,125,255,0));
}
.tl-item{position:relative;padding-bottom:38px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";
  position:absolute;left:-47px;top:9px;
  width:14px;height:14px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 4px rgba(0,216,192,.14),0 0 18px rgba(0,216,192,.7);
}
.tl-num{
  display:block;
  font-size:13px;font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--brand);
  letter-spacing:0;
}
.tl-item h3{font-size:19px;font-weight:700;margin-top:6px;line-height:1.4}
.tl-item p{margin-top:8px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:760px}

/* ---------- 数据条 ---------- */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  margin-top:44px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.stat{padding:26px 18px;text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{
  display:block;
  font-size:clamp(26px,2.6vw,36px);
  font-weight:800;line-height:1.1;
  font-variant-numeric:tabular-nums;
  color:var(--brand);
}
.stat span{display:block;margin-top:8px;font-size:12px;color:var(--text-3)}

/* ---------- 图文要点 ---------- */
.figure-row{
  display:grid;grid-template-columns:1.02fr 1fr;
  gap:44px;align-items:center;margin-top:44px;
}
.figure-frame{
  position:relative;
  border-radius:var(--r-img);
  border:1px solid var(--line);
  overflow:hidden;
  aspect-ratio:16/10;
  background:var(--bg-3);
  box-shadow:var(--shadow-card);
}
.figure-frame img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.figure-frame:hover img{transform:scale(1.03)}
.point-list{margin-top:20px}
.point-list li{
  position:relative;padding-left:26px;margin-top:16px;
  font-size:15px;line-height:1.85;color:var(--text-2);
}
.point-list li::before{
  content:"";position:absolute;left:2px;top:10px;
  width:8px;height:8px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 10px rgba(0,216,192,.65);
}
.point-list strong{display:block;color:var(--text);font-size:16px;margin-bottom:2px}

/* ---------- 对照卡 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:44px}
.compare-card{
  border-radius:var(--r-card);
  padding:28px;
  border:1px solid var(--line);
  background:var(--glass);
  box-shadow:var(--shadow-card);
  transition:transform .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);
}
.compare-card:hover{transform:translateY(-3px);border-color:rgba(0,216,192,.45);background:var(--glass-2)}
.compare-card h3{font-size:19px;font-weight:700;line-height:1.4}
.compare-card .badge-line{margin-bottom:12px}
.compare-card.warn{border-color:rgba(255,182,92,.32);background:rgba(255,182,92,.05)}
.compare-card.warn:hover{border-color:rgba(255,182,92,.5);background:rgba(255,182,92,.08)}
.check-list li{
  position:relative;padding-left:24px;
  margin-top:14px;font-size:15px;line-height:1.8;color:var(--text-2);
}
.check-list li::before{
  content:"";position:absolute;left:2px;top:10px;
  width:8px;height:8px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 10px rgba(0,216,192,.6);
}
.compare-card.warn .check-list li::before{background:var(--amber);box-shadow:0 0 10px rgba(255,182,92,.65)}

/* ---------- 场景行列表 ---------- */
.scene-list{margin-top:40px;border-top:1px solid var(--line-soft)}
.scene-item{
  display:grid;grid-template-columns:72px 1fr auto;
  gap:24px;align-items:center;
  padding:26px 10px;
  border-bottom:1px solid var(--line-soft);
  transition:background .25s var(--ease),border-color .25s var(--ease);
}
.scene-item:hover{background:rgba(140,190,255,.05);border-color:rgba(0,216,192,.28)}
.scene-num{
  font-size:15px;font-weight:800;
  font-variant-numeric:tabular-nums;
  color:var(--text-3);
}
.scene-item h3{font-size:18px;font-weight:700;line-height:1.4}
.scene-item p{margin-top:4px;font-size:14px;line-height:1.75;color:var(--text-2)}
.scene-tag{
  display:inline-flex;align-items:center;
  height:24px;padding:0 12px;border-radius:999px;
  font-size:12px;color:#9CC0FF;
  background:rgba(44,125,255,.12);
  border:1px solid rgba(44,125,255,.34);
  white-space:nowrap;
}

/* ---------- FAQ ---------- */
.faq-wrap{
  margin-top:40px;
  padding:6px 28px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
  box-shadow:var(--shadow-card);
}
details.faq{border-bottom:1px solid rgba(120,170,255,.14)}
details.faq:last-child{border-bottom:0}
details.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;
  font-size:16px;font-weight:600;line-height:1.6;
  cursor:pointer;list-style:none;
  transition:color .2s var(--ease);
}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary:hover{color:var(--brand)}
.faq-icon{
  position:relative;flex:none;
  width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);
  background:rgba(140,190,255,.06);
  transition:transform .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;top:50%;left:50%;
  width:11px;height:1.5px;border-radius:2px;
  background:var(--text-2);
  transform:translate(-50%,-50%);
  transition:background .25s var(--ease),opacity .25s var(--ease);
}
.faq-icon::after{transform:translate(-50%,-50%) rotate(90deg)}
details.faq[open] .faq-icon{border-color:rgba(0,216,192,.5);background:rgba(0,216,192,.14);transform:rotate(180deg)}
details.faq[open] .faq-icon::before,details.faq[open] .faq-icon::after{background:var(--brand)}
details.faq[open] .faq-icon::after{opacity:0}
.faq-answer{
  padding:0 0 22px;
  font-size:15px;line-height:1.9;color:var(--text-2);
  max-width:860px;
}

/* ---------- CTA ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:44px;
  border-radius:22px;
  border:1px solid rgba(0,216,192,.28);
  background:
    radial-gradient(circle at 14% 26%,rgba(0,216,192,.15),transparent 56%),
    rgba(140,190,255,.06);
  box-shadow:var(--shadow-card);
}
.cta-band h2{font-size:clamp(22px,2.2vw,28px);font-weight:700;line-height:1.35}
.cta-band p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:560px;line-height:1.85}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:0;
  padding:72px 0 32px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,17,32,.6),rgba(5,11,20,1));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand .brand{padding-left:14px}
.footer-brand .brand-line1,.footer-brand .brand-line2{font-size:18px}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:var(--text-2);max-width:320px}
.footer-url{margin-top:12px;font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{
  font-size:14px;color:var(--text-2);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-links a:hover{color:var(--brand);transform:translateX(2px)}
.footer-info p{font-size:13px;line-height:1.85;color:var(--text-3);margin-bottom:10px}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
}
.footer-bottom p{font-size:12px;color:var(--text-3);line-height:1.7}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:55;
  display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 22px;border-radius:999px;
  font-size:14px;font-weight:700;color:#04141A;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 8px 26px rgba(0,216,192,.35);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto}

/* ---------- 入场 ---------- */
.reveal-up{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal-up.in{opacity:1;transform:translateY(0)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 26px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:1023px){
  .side-nav{
    top:0;left:0;right:0;bottom:auto;
    width:100%;height:60px;
    flex-direction:row;align-items:center;
    padding:0 16px;
    border-right:0;border-bottom:1px solid var(--line);
    box-shadow:0 1px 0 rgba(0,216,192,.12);
    overflow:visible;
  }
  .nav-top{display:flex;align-items:center;justify-content:space-between;width:100%;gap:12px}
  .brand{padding-left:12px;min-width:0}
  .brand-dot{top:2px;height:20px;width:5px}
  .brand-line1,.brand-line2{display:inline;font-size:15px;font-weight:800}
  .brand-line2{margin-left:4px}
  .brand-sub{display:none}
  .nav-toggle{display:inline-flex;flex:none}
  .nav-drawer{
    position:fixed;top:0;right:0;bottom:0;
    width:84vw;max-width:340px;
    padding:74px 20px 26px;
    background:#081120;
    border-left:1px solid var(--line);
    transform:translateX(105%);
    transition:transform .3s var(--ease);
    overflow-y:auto;
    z-index:70;
  }
  body.nav-open .nav-drawer{transform:translateX(0)}
  body.nav-open .nav-veil{opacity:1;pointer-events:auto}
  body.nav-open{overflow:hidden}
  .nav-item{padding:14px 12px 14px 16px;font-size:15px;line-height:48px;padding-top:0;padding-bottom:0}
  .nav-item::before{top:50%}
  main{margin-left:0;padding-top:60px}
  .section{padding:68px 0}
  .page-hero{padding:72px 0 56px}
  .figure-row{grid-template-columns:1fr;gap:28px}
  .compare{grid-template-columns:1fr}
  .stat-bar{grid-template-columns:1fr 1fr}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px}
  .scene-item{grid-template-columns:52px 1fr;gap:16px}
  .scene-item .scene-tag{grid-column:2;justify-self:start;margin-top:4px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .float-cta{right:16px;bottom:20px}
}
@media (max-width:639px){
  .container{padding:0 16px}
  body{font-size:15px}
  .page-hero h1{font-size:26px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%;max-width:360px;margin:0 auto}
  .section{padding:56px 0}
  .timeline{padding-left:44px}
  .timeline::before{left:12px}
  .tl-item::before{left:-39px}
  .stat-bar{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line);padding:22px 16px}
  .stat:last-child{border-bottom:0}
  .faq-wrap{padding:4px 18px}
  details.faq summary{font-size:15px}
  .cta-band{padding:26px 20px}
  .cta-band .btn{width:100%;max-width:360px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .float-cta{left:16px;right:16px;bottom:14px;width:auto;height:52px;justify-content:center}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .reveal-up{opacity:1;transform:none}
}

/* roulang page: category3 */
/* ==================== 设计变量 ==================== */
:root{
  --bg:#050B14;
  --bg-soft:#081120;
  --surface:#0C1A2B;
  --glass:rgba(140,190,255,.07);
  --glass-strong:rgba(140,190,255,.12);
  --line:rgba(120,170,255,.18);
  --line-strong:rgba(0,216,192,.42);
  --brand:#00D8C0;
  --brand-2:#2C7DFF;
  --amber:#FFB65C;
  --text:#E8F1FF;
  --text-2:#A3B6CE;
  --text-3:#6B7F99;
  --radius:18px;
  --radius-img:14px;
  --shadow:0 8px 28px rgba(3,10,22,.55);
  --glow:0 0 24px rgba(0,216,192,.35);
  --nav-w:240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ==================== 基础重置 ==================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.drawer-open{overflow:hidden}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease)}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3{font-weight:700;line-height:1.25}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
a:focus-visible,button:focus-visible,summary:focus-visible{
  outline:2px solid var(--amber);
  outline-offset:3px;
  border-radius:8px;
}

/* ==================== 容器 ==================== */
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 32px;
}

/* ==================== 左侧导航 ==================== */
.side-nav{
  position:fixed;
  top:0;left:0;
  width:var(--nav-w);
  height:100vh;
  padding:30px 18px 24px;
  display:flex;
  flex-direction:column;
  gap:22px;
  background:rgba(8,17,32,.86);
  -webkit-backdrop-filter:blur(20px);
  backdrop-filter:blur(20px);
  border-right:1px solid rgba(0,216,192,.22);
  box-shadow:1px 0 30px rgba(0,216,192,.06);
  overflow-y:auto;
  z-index:60;
}
.brand{
  display:block;
  position:relative;
  padding-left:14px;
  line-height:1.3;
}
.brand-dot{
  position:absolute;
  left:0;top:8px;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:var(--glow);
}
.brand-line1{
  display:block;
  font-size:18px;
  font-weight:800;
  color:var(--text);
}
.brand-line2{
  display:block;
  font-size:18px;
  font-weight:800;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.brand-sub{
  display:block;
  margin-top:8px;
  font-size:12px;
  color:var(--text-3);
  font-weight:400;
}
.nav-group{display:flex;flex-direction:column;gap:3px}
.nav-label{
  padding:0 12px 8px;
  font-size:12px;
  color:var(--text-3);
}
.nav-item{
  position:relative;
  display:block;
  padding:11px 12px 11px 15px;
  border-radius:10px;
  font-size:14.5px;
  color:var(--text-2);
  transition:color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.nav-item::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  width:3px;height:0;
  border-radius:2px;
  background:var(--brand);
  box-shadow:var(--glow);
  transform:translateY(-50%);
  transition:height .2s var(--ease);
}
.nav-item:hover{
  color:#fff;
  background:rgba(0,216,192,.05);
  transform:translateX(2px);
}
.nav-item.active{
  color:#fff;
  background:rgba(0,216,192,.09);
}
.nav-item.active::before{height:20px}
.side-divider{
  height:1px;
  background:linear-gradient(90deg,rgba(0,216,192,.35),rgba(120,170,255,.08));
}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:14px}
.side-info{
  padding:14px;
  font-size:12.5px;
  line-height:1.7;
  color:var(--text-3);
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:14px;
}
.side-info strong{
  display:block;
  margin-bottom:6px;
  font-size:13px;
  color:var(--text-2);
  font-weight:600;
}
.side-cta .btn{width:100%}

/* ==================== 按钮 ==================== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .2s var(--ease),filter .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04141A;
  box-shadow:0 0 24px rgba(0,216,192,.32);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-primary:active{transform:none}
.btn-ghost{
  background:var(--glass);
  border-color:rgba(120,170,255,.3);
  color:var(--text);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.btn-ghost:hover{background:var(--glass-strong);border-color:var(--line-strong);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  color:var(--text-2);
}
.text-link span{transition:transform .2s var(--ease)}
.text-link:hover{color:var(--brand)}
.text-link:hover span{transform:translateX(3px)}

/* ==================== 徽章与胶囊 ==================== */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  color:var(--brand);
  background:rgba(0,216,192,.1);
  border:1px solid rgba(0,216,192,.32);
}
.badge-violet{
  color:#8DA8FF;
  background:rgba(44,125,255,.12);
  border-color:rgba(44,125,255,.34);
}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--text-2);
  background:rgba(140,190,255,.06);
  border:1px solid var(--line);
  transition:all .2s var(--ease);
}
.chip.is-on{
  color:var(--brand);
  background:rgba(0,216,192,.1);
  border-color:rgba(0,216,192,.38);
}
.chip:hover{color:#fff;border-color:rgba(0,216,192,.4)}

/* ==================== 页面主体 ==================== */
.page{margin-left:var(--nav-w);min-height:100vh}
.section{padding:88px 0}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,2.4vw,31px);margin-bottom:12px}
.section-sub{font-size:15px;color:var(--text-2)}
.divider-line{
  height:1px;
  background:linear-gradient(90deg,rgba(0,216,192,.28),rgba(120,170,255,.06));
}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;
  padding:92px 0 76px;
  background:
    linear-gradient(180deg,rgba(5,11,20,.86) 0%,rgba(5,11,20,.92) 60%,rgba(5,11,20,.98) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    radial-gradient(circle at 82% 18%,rgba(44,125,255,.16),transparent 46%),
    radial-gradient(circle at 12% 78%,rgba(0,216,192,.13),transparent 44%);
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(120,170,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(120,170,255,.05) 1px,transparent 1px);
  background-size:56px 56px;
  opacity:.5;
  pointer-events:none;
}
.hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(0,1.5fr) minmax(0,.85fr);
  gap:48px;
  align-items:end;
}
.hero-main h1{
  margin:18px 0 16px;
  font-size:clamp(30px,3.2vw,46px);
  line-height:1.18;
  letter-spacing:0;
}
.hero-main h1 em{
  font-style:normal;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  font-size:16px;
  color:var(--text-2);
  max-width:560px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:18px;
  margin-top:30px;
}
.hero-note{
  margin-top:18px;
  font-size:12.5px;
  color:var(--text-3);
}
.hero-side{
  padding:22px;
  background:rgba(12,26,43,.62);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
}
.filter-label{
  display:block;
  margin-bottom:14px;
  font-size:12.5px;
  color:var(--text-3);
}
.hero-side .chips{margin-bottom:16px}
.side-metric{
  display:flex;
  justify-content:space-between;
  gap:12px;
  padding-top:14px;
  border-top:1px solid var(--line);
}
.side-metric div{flex:1}
.side-metric strong{
  display:block;
  font-size:20px;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.side-metric span{font-size:12px;color:var(--text-3)}

/* ---------- 矩阵卡片 ---------- */
.matrix{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
  align-items:start;
}
.m-card{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:24px;
  min-height:196px;
  background:var(--glass);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);
}
.m-card:hover{
  transform:translateY(-3px);
  border-color:var(--line-strong);
  background:var(--glass-strong);
}
.matrix > .m-card:nth-child(3n+2){margin-top:30px}
.m-card.is-tall{min-height:300px}
.m-card.is-short{min-height:168px}
.m-top{display:flex;align-items:center;gap:10px}
.m-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  border-radius:12px;
  font-size:14px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--brand);
  background:rgba(0,216,192,.1);
  border:1px solid rgba(0,216,192,.28);
}
.m-tag{
  display:inline-flex;
  align-items:center;
  height:22px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  color:#8DA8FF;
  background:rgba(44,125,255,.12);
  border:1px solid rgba(44,125,255,.3);
}
.m-card h3{font-size:18px;line-height:1.4}
.m-card p{
  font-size:14px;
  line-height:1.75;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.m-link{
  margin-top:auto;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13.5px;
  font-weight:600;
  color:var(--brand);
}
.m-link span{transition:transform .2s var(--ease)}
.m-card:hover .m-link span{transform:translateX(3px)}
.m-thumb{
  margin:-24px -24px 6px;
  border-radius:var(--radius) var(--radius) 0 0;
  overflow:hidden;
  aspect-ratio:16/9;
  border-bottom:1px solid var(--line);
}
.m-thumb img{width:100%;height:100%;object-fit:cover}

/* ---------- 三步条 ---------- */
.flow-band{
  background:var(--bg-soft);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.flow{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:0;
}
.flow-item{
  padding:8px 32px;
  border-left:1px solid var(--line);
}
.flow-item:first-child{border-left:0;padding-left:0}
.flow-item:last-child{padding-right:0}
.flow-num{
  display:block;
  font-size:34px;
  font-weight:800;
  line-height:1.1;
  color:transparent;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;
  background-clip:text;
  font-variant-numeric:tabular-nums;
}
.flow-item h3{margin:10px 0 8px;font-size:17px}
.flow-item p{font-size:14px;color:var(--text-2)}

/* ---------- FAQ ---------- */
.faq-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
.faq-item{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
  overflow:hidden;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.faq-item.open{
  border-color:var(--line-strong);
  background:var(--glass-strong);
}
.faq-h{margin:0}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  width:100%;
  padding:20px 22px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  line-height:1.55;
  color:var(--text);
  min-height:44px;
}
.faq-q:hover{color:var(--brand)}
.faq-ico{
  position:relative;
  flex:none;
  width:24px;height:24px;
  border-radius:50%;
  border:1px solid rgba(120,170,255,.35);
  transition:transform .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);
}
.faq-ico::before,.faq-ico::after{
  content:"";
  position:absolute;
  top:50%;left:50%;
  background:var(--text-2);
  transform:translate(-50%,-50%);
  transition:background .25s var(--ease);
}
.faq-ico::before{width:10px;height:1.5px}
.faq-ico::after{width:1.5px;height:10px}
.faq-item.open .faq-ico{
  transform:rotate(45deg);
  border-color:rgba(0,216,192,.6);
  background:rgba(0,216,192,.12);
}
.faq-item.open .faq-ico::before,
.faq-item.open .faq-ico::after{background:var(--brand)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .25s var(--ease);
}
.faq-a p{
  padding:0 22px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}

/* ---------- 尾部 CTA ---------- */
.cta-band{padding:0 0 88px}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:36px 40px;
  border-radius:22px;
  background:
    radial-gradient(circle at 88% 20%,rgba(0,216,192,.14),transparent 52%),
    rgba(12,26,43,.78);
  border:1px solid rgba(0,216,192,.26);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
}
.cta-inner h2{font-size:clamp(22px,2.2vw,28px);margin-bottom:10px}
.cta-inner p{font-size:14.5px;color:var(--text-2)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-left:var(--nav-w);
  padding:64px 0 32px;
  background:var(--bg-soft);
  border-top:1px solid var(--line);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand .brand{padding-left:0;margin-bottom:16px}
.footer-desc{
  font-size:13.5px;
  line-height:1.8;
  color:var(--text-3);
  max-width:320px;
}
.footer-url{
  margin-top:14px;
  font-size:12.5px;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.footer-title{
  font-size:13px;
  font-weight:600;
  color:var(--text-2);
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{
  font-size:13.5px;
  color:var(--text-3);
}
.footer-links a:hover{color:var(--brand)}
.footer-info p{
  font-size:13px;
  line-height:1.8;
  color:var(--text-3);
  margin-bottom:10px;
}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:8px 24px;
  justify-content:space-between;
}
.footer-bottom p{
  font-size:12px;
  color:var(--text-3);
}

/* ---------- 移动端顶栏与抽屉 ---------- */
.top-bar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:60px;
  align-items:center;
  justify-content:space-between;
  padding:0 18px;
  background:rgba(8,17,32,.9);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(0,216,192,.2);
  z-index:80;
}
.top-bar .brand{padding-left:12px}
.top-bar .brand-line1,.top-bar .brand-line2{font-size:15px}
.top-bar .brand-dot{top:7px;width:7px;height:7px}
.nav-toggle{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
}
.nav-toggle span{
  position:relative;
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--text);
  transition:background .2s var(--ease);
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--text);
  transition:transform .25s var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
body.drawer-open .nav-toggle span{background:transparent}
body.drawer-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
body.drawer-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(3,7,14,.65);
  opacity:0;
  pointer-events:none;
  transition:opacity .25s var(--ease);
  z-index:85;
}
body.drawer-open .drawer-mask{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;
  top:0;right:0;
  width:84vw;
  max-width:340px;
  height:100vh;
  padding:80px 20px 28px;
  display:flex;
  flex-direction:column;
  gap:8px;
  background:rgba(8,17,32,.97);
  -webkit-backdrop-filter:blur(20px);
  backdrop-filter:blur(20px);
  border-left:1px solid rgba(0,216,192,.24);
  transform:translateX(100%);
  transition:transform .3s var(--ease);
  overflow-y:auto;
  z-index:90;
}
body.drawer-open .drawer{transform:translateX(0)}
.drawer .nav-item{min-height:48px;display:flex;align-items:center;font-size:15px}
.drawer-foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--line)}
.drawer-foot p{font-size:12.5px;color:var(--text-3);margin-bottom:14px;line-height:1.7}
.drawer-foot .btn{width:100%}

/* ---------- 浮动按钮 ---------- */
.float-cta{
  position:fixed;
  right:28px;bottom:28px;
  display:flex;
  align-items:center;
  gap:8px;
  padding:8px 10px 8px 8px;
  border-radius:999px;
  background:rgba(12,26,43,.88);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border:1px solid rgba(0,216,192,.4);
  box-shadow:var(--glow);
  opacity:0;
  pointer-events:none;
  transform:translateY(12px);
  transition:opacity .3s var(--ease),transform .3s var(--ease);
  z-index:70;
}
.float-cta.show{opacity:1;pointer-events:auto;transform:none}
.float-close{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:32px;height:32px;
  border-radius:50%;
  font-size:16px;
  color:var(--text-3);
  border:1px solid var(--line);
  background:rgba(140,190,255,.06);
}
.float-close:hover{color:var(--text);border-color:var(--line-strong)}
.back-top{
  position:fixed;
  right:28px;bottom:100px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:46px;height:46px;
  border-radius:50%;
  font-size:16px;
  color:var(--text);
  background:rgba(12,26,43,.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  opacity:0;
  pointer-events:none;
  transform:translateY(10px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),border-color .2s var(--ease);
  z-index:69;
}
.back-top.show{opacity:1;pointer-events:auto;transform:none}
.back-top:hover{border-color:var(--line-strong)}

/* ==================== 响应式 ==================== */
@media (max-width:1279px){
  .container{padding:0 24px}
  .hero-inner{grid-template-columns:minmax(0,1fr) minmax(0,320px);gap:32px}
  .section{padding:72px 0}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:32px}
  .footer-info{grid-column:1 / -1}
}
@media (max-width:1100px){
  .matrix{grid-template-columns:repeat(2,minmax(0,1fr))}
  .matrix > .m-card:nth-child(3n+2){margin-top:0}
  .matrix > .m-card:nth-child(2n){margin-top:26px}
}
@media (max-width:1023px){
  .side-nav{display:none}
  .top-bar{display:flex}
  .page{margin-left:0;padding-top:60px}
  .site-footer{margin-left:0}
  .page-hero{padding:64px 0 56px}
  .hero-inner{grid-template-columns:1fr;gap:28px;align-items:start}
  .flow{grid-template-columns:1fr}
  .flow-item{
    padding:24px 0 0;
    border-left:0;
    border-top:1px solid var(--line);
  }
  .flow-item:first-child{padding-top:0;border-top:0}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:22px;padding:28px}
  .float-cta{
    left:0;right:0;bottom:0;
    border-radius:0;
    padding:8px 14px;
    justify-content:space-between;
    transform:translateY(100%);
    border-left:0;border-right:0;border-bottom:0;
  }
  .float-cta.show{transform:none}
  .back-top{right:16px;bottom:74px}
  .section{padding:64px 0}
  .cta-band{padding:0 0 64px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .hero-main h1{font-size:clamp(26px,6vw,34px)}
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%;max-width:360px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .text-link{justify-content:center}
  .matrix{grid-template-columns:1fr;gap:16px}
  .matrix > .m-card:nth-child(2n){margin-top:0}
  .m-card{min-height:0;padding:20px}
  .m-card.is-tall,.m-card.is-short{min-height:0}
  .m-thumb{margin:-20px -20px 6px}
  .faq-grid{grid-template-columns:1fr}
  .q,.faq-q{padding:18px}
  .faq-a p{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:6px}
  .section-head{margin-bottom:28px}
}
@media (max-width:520px){
  body{font-size:15px}
  .section{padding:52px 0}
  .page-hero{padding:52px 0 44px}
  .btn{height:44px;padding:0 20px;font-size:14px}
  .btn-sm{height:38px;padding:0 16px;font-size:13px}
  .side-metric strong{font-size:18px}
  .cta-inner h2{font-size:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}