/* roulang page: index */
/* ============================================================
   设计变量
   ============================================================ */
:root{
  --bg-ink:#070C16;
  --bg-panel:#0C1424;
  --bg-raise:#111A2E;
  --glass:rgba(255,255,255,.045);
  --glass-line:rgba(255,255,255,.09);
  --glass-line-strong:rgba(255,255,255,.18);
  --brand:#2F5BFF;
  --brand-soft:rgba(47,91,255,.16);
  --accent:#C8F63C;
  --accent-soft:rgba(200,246,60,.12);
  --hot:#FF7A2F;
  --tx-1:#EDF2FB;
  --tx-2:rgba(237,242,251,.72);
  --tx-3:rgba(237,242,251,.48);
  --r-sm:12px;
  --r-md:18px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-card:0 16px 44px rgba(3,8,20,.55);
  --sh-glow:0 0 0 1px rgba(200,246,60,.35), 0 10px 30px rgba(200,246,60,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
  --maxw:1240px;
  --sec-gap:104px;
  --footer-bg:#050912;
}

/* ============================================================
   Reset / Base
   ============================================================ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-ink);
  color:var(--tx-1);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:56px 56px;
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  inset:-20% -10%;
  background:linear-gradient(115deg,transparent 42%,rgba(200,246,60,.07) 50%,transparent 58%);
  pointer-events:none;
  z-index:0;
}
header,main,footer{position:relative;z-index:2;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent);text-decoration:underline;}
h1,h2,h3,h4{margin:0;color:var(--tx-1);font-weight:700;letter-spacing:-.01em;}
h1{font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.18;}
h2{font-size:clamp(22px,2.6vw,34px);line-height:1.3;}
h3{font-size:19px;font-weight:600;line-height:1.45;}
p{margin:0 0 14px;color:var(--tx-2);}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;}

/* ============================================================
   容器与通用节奏
   ============================================================ */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 28px;}
.section{padding:var(--sec-gap) 0;position:relative;}
.section--tight{padding:72px 0;}
.rule{
  height:1px;border:0;margin:0;
  background:var(--glass-line);
  position:relative;overflow:visible;
}
.rule::after{
  content:"";position:absolute;left:50%;top:0;
  width:80px;height:1px;background:var(--accent);
  transform:translateX(-50%);opacity:.85;
}
.sec-head{margin-bottom:44px;max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--accent);
  font-weight:600;margin-bottom:14px;
}
.eyebrow::before{
  content:"";width:22px;height:1px;background:var(--accent);opacity:.8;
}
.sec-head p{font-size:15.5px;color:var(--tx-2);margin:12px 0 0;max-width:640px;}
.lead{font-size:16px;color:var(--tx-2);line-height:1.85;}

/* ============================================================
   按钮
   ============================================================ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:52px;padding:0 30px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:all .22s var(--ease);
  white-space:nowrap;
  text-decoration:none;
}
.btn:hover{text-decoration:none;}
.btn-primary{
  background:var(--accent);color:#0A1020;
  box-shadow:var(--sh-glow);
}
.btn-primary:hover{
  background:#D4FA52;color:#080D18;
  box-shadow:0 0 0 1px rgba(200,246,60,.45),0 0 42px rgba(200,246,60,.42);
}
.btn-primary:hover .btn-ico{transform:translateX(4px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;color:var(--tx-1);
  border-color:rgba(255,255,255,.24);
}
.btn-ghost:hover{
  background:rgba(255,255,255,.06);
  border-color:rgba(255,255,255,.34);
  color:var(--tx-1);
}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn-ico{transition:transform .22s var(--ease);font-size:12px;}
.btn-block{width:100%;}
.link-more{
  font-size:14px;font-weight:600;color:var(--brand);
  display:inline-flex;align-items:center;gap:6px;
}
.link-more:hover{color:var(--accent);text-decoration:none;}

/* ============================================================
   悬浮胶囊导航
   ============================================================ */
.site-header{
  position:sticky;top:0;z-index:120;
  padding:20px 24px 0;
  transition:padding .28s var(--ease);
}
.site-header.is-stuck{padding-top:10px;}
.nav-capsule{
  max-width:var(--maxw);margin:0 auto;
  display:flex;align-items:center;gap:20px;
  height:64px;padding:0 10px 0 20px;
  border-radius:var(--r-pill);
  background:rgba(12,20,36,.72);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:0 10px 30px rgba(3,8,20,.45);
  transition:background .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-stuck .nav-capsule{
  background:rgba(8,14,26,.94);
  border-color:var(--glass-line-strong);
  box-shadow:0 16px 40px rgba(3,8,20,.72);
}
.brand{
  display:inline-flex;align-items:center;gap:11px;
  color:var(--tx-1);flex:0 0 auto;
}
.brand:hover{color:var(--tx-1);text-decoration:none;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(150deg,var(--brand),#1A3799);
  display:grid;place-items:center;
  font-size:15px;font-weight:800;color:#fff;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.28);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;right:-3px;bottom:-3px;
  width:10px;height:10px;border-radius:3px;
  background:var(--accent);
  box-shadow:0 0 12px rgba(200,246,60,.7);
}
.brand-text{
  font-size:16.5px;font-weight:700;letter-spacing:-.01em;
  white-space:nowrap;
}
.nav-links{
  display:flex;align-items:center;gap:4px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:40px;padding:0 16px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:500;color:var(--tx-2);
  transition:all .22s var(--ease);
}
.nav-link:hover{
  color:var(--tx-1);background:var(--accent-soft);
  text-decoration:none;transform:translateY(-1px);
}
.nav-link.is-active{
  color:var(--accent);background:var(--accent-soft);
}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:4px;
  width:18px;height:2px;border-radius:2px;
  background:var(--accent);transform:translateX(-50%);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.06);
  border:1px solid var(--glass-line);
  cursor:pointer;padding:0;
  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(--tx-1);transition:all .22s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.nav-drawer{
  display:none;
  max-width:var(--maxw);margin:12px auto 0;
  border-radius:var(--r-lg);
  background:rgba(9,15,28,.98);
  border:1px solid var(--glass-line-strong);
  box-shadow:0 20px 50px rgba(3,8,20,.7);
  padding:22px;
}
.nav-drawer.is-open{display:block;}
.nav-drawer a{
  display:block;padding:14px 6px;
  font-size:18px;font-weight:600;color:var(--tx-1);
  border-bottom:1px solid var(--glass-line);
}
.nav-drawer a:last-child{border-bottom:0;}
.nav-drawer a.is-active{color:var(--accent);}
.nav-drawer .drawer-cta{margin-top:18px;}
body.drawer-open{overflow:hidden;}

/* ============================================================
   Hero
   ============================================================ */
.hero{padding:64px 0 0;}
.hero-grid{
  display:grid;grid-template-columns:7fr 5fr;
  gap:56px;align-items:center;
}
.hero-copy h1{margin-bottom:20px;}
.hero-copy h1 em{
  font-style:normal;color:var(--accent);
  position:relative;white-space:nowrap;
}
.hero-sub{
  font-size:17px;line-height:1.8;color:var(--tx-2);
  max-width:560px;margin-bottom:30px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.hero-facts{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:0;border-top:1px solid var(--glass-line);
  padding-top:22px;
}
.hero-fact{padding-right:18px;border-right:1px solid var(--glass-line);}
.hero-fact:last-child{border-right:0;padding-right:0;}
.hero-fact b{
  display:block;font-size:26px;font-weight:800;color:var(--tx-1);
  letter-spacing:-.02em;line-height:1.2;
}
.hero-fact b i{font-style:normal;font-size:14px;color:var(--accent);margin-left:3px;font-weight:600;}
.hero-fact span{font-size:13px;color:var(--tx-3);}
.hero-visual{position:relative;}
.hero-visual .frame{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--glass-line);
  box-shadow:var(--sh-card);
  aspect-ratio:4/3.4;
}
.hero-visual .frame img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.95) contrast(1.05);
}
.hero-visual .frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,22,.25) 0%,rgba(7,12,22,.15) 45%,rgba(7,12,22,.92) 100%);
}
.hero-badge{
  position:absolute;left:20px;bottom:20px;right:20px;
  display:flex;align-items:center;gap:14px;
  padding:14px 18px;border-radius:var(--r-md);
  background:rgba(10,17,31,.78);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.hero-badge i{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  display:grid;place-items:center;
  background:var(--accent-soft);color:var(--accent);font-size:16px;
}
.hero-badge b{display:block;font-size:14.5px;color:var(--tx-1);font-weight:600;}
.hero-badge span{font-size:12.5px;color:var(--tx-3);}

/* ============================================================
   指标看板
   ============================================================ */
.metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.metric-card{
  position:relative;
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-md);
  padding:26px 26px 22px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12),var(--sh-card);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
  overflow:hidden;
}
.metric-card::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:2px;
  background:var(--accent);opacity:0;transition:opacity .22s var(--ease);
}
.metric-card:hover{transform:translateY(-3px);border-color:var(--glass-line-strong);}
.metric-card:hover::before{opacity:1;}
.metric-top{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;}
.metric-num{
  font-size:clamp(32px,3.4vw,44px);font-weight:800;line-height:1.05;
  letter-spacing:-.03em;color:var(--tx-1);
}
.metric-num i{font-style:normal;font-size:16px;font-weight:600;color:var(--accent);margin-left:4px;}
.tag-trend{
  display:inline-flex;align-items:center;gap:5px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:5px 11px;border-radius:var(--r-pill);
  background:var(--accent-soft);color:var(--accent);white-space:nowrap;
}
.tag-trend.is-down{background:rgba(255,122,47,.14);color:var(--hot);}
.metric-label{margin-top:10px;font-size:14.5px;color:var(--tx-1);font-weight:600;}
.metric-desc{font-size:13.5px;color:var(--tx-3);margin:4px 0 16px;line-height:1.65;}
.metric-bars{display:flex;align-items:flex-end;gap:5px;height:34px;}
.metric-bars i{
  flex:1;display:block;border-radius:3px 3px 1px 1px;
  background:linear-gradient(180deg,rgba(200,246,60,.85),rgba(200,246,60,.18));
}
.metric-bars.is-soft i{background:linear-gradient(180deg,rgba(47,91,255,.75),rgba(47,91,255,.12));}

/* ============================================================
   服务矩阵
   ============================================================ */
.matrix{display:grid;grid-template-columns:7fr 5fr;gap:26px;align-items:stretch;}
.matrix-main{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--glass-line);
  box-shadow:var(--sh-card);
  min-height:420px;
  display:flex;flex-direction:column;justify-content:flex-end;
}
.matrix-main img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
}
.matrix-main .veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,22,.25) 0%,rgba(7,12,22,.72) 52%,rgba(7,12,22,.96) 100%);
}
.matrix-main .inner{position:relative;padding:34px;}
.matrix-main .idx{
  font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--accent);
  display:block;margin-bottom:12px;
}
.matrix-main h3{font-size:clamp(20px,2.1vw,26px);margin-bottom:12px;}
.matrix-main p{font-size:14.5px;color:var(--tx-2);max-width:520px;margin-bottom:20px;line-height:1.7;}
.matrix-side{display:flex;flex-direction:column;gap:16px;}
.matrix-item{
  flex:1;
  background:var(--glass);border:1px solid var(--glass-line);
  border-radius:var(--r-md);padding:22px 24px;
  display:flex;flex-direction:column;gap:6px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.1);
  transition:transform .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
  position:relative;overflow:hidden;
}
.matrix-item:hover{
  transform:translateY(-3px);
  border-color:var(--glass-line-strong);
  background:rgba(255,255,255,.065);
}
.matrix-item .idx{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--brand);}
.matrix-item h3{font-size:17px;}
.matrix-item p{font-size:13.5px;color:var(--tx-3);margin:0;line-height:1.65;}
.matrix-item .go{
  margin-top:auto;font-size:13px;font-weight:600;color:var(--brand);
  display:inline-flex;align-items:center;gap:6px;
}
.matrix-item:hover .go{color:var(--accent);}

/* ============================================================
   结果对比
   ============================================================ */
.compare{
  display:grid;grid-template-columns:1fr 1px 1fr;gap:0;
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-card);
}
.compare-col{padding:34px 32px;}
.compare-col .col-head{
  display:flex;align-items:center;gap:10px;
  font-size:13px;font-weight:700;letter-spacing:.1em;
  color:var(--tx-3);margin-bottom:24px;
}
.compare-col .col-head i{font-size:14px;}
.compare-col.is-on .col-head{color:var(--accent);}
.compare-divider{background:var(--glass-line);}
.compare-row{margin-bottom:20px;}
.compare-row:last-child{margin-bottom:0;}
.compare-row .row-top{
  display:flex;justify-content:space-between;align-items:baseline;
  font-size:14px;margin-bottom:8px;gap:12px;
}
.compare-row .row-top span{color:var(--tx-2);}
.compare-row .row-top b{font-size:13px;font-weight:600;color:var(--tx-3);white-space:nowrap;}
.compare-col.is-on .compare-row .row-top b{color:var(--accent);}
.bar{height:5px;border-radius:3px;background:rgba(255,255,255,.08);overflow:hidden;}
.bar i{display:block;height:100%;border-radius:3px;background:rgba(255,255,255,.22);}
.compare-col.is-on .bar i{background:linear-gradient(90deg,var(--brand),var(--accent));}
.compare-note{
  margin-top:30px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;
}

/* ============================================================
   资讯列表（CMS）
   ============================================================ */
.news-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:40px;flex-wrap:wrap;
}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.1),var(--sh-card);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.news-card:hover{transform:translateY(-3px);border-color:var(--glass-line-strong);}
.news-cover{
  display:block;position:relative;aspect-ratio:16/9;overflow:hidden;
  background:var(--bg-raise);
}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.news-card:hover .news-cover img{transform:scale(1.05);}
.news-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,22,0) 40%,rgba(7,12,22,.55) 100%);
}
.news-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1;}
.news-badge{
  align-self:flex-start;
  font-size:12px;font-weight:600;letter-spacing:.06em;
  padding:4px 11px;border-radius:var(--r-pill);
  background:rgba(47,91,255,.16);color:#9BB0FF;
  margin-bottom:12px;
}
.news-card h3{font-size:17px;margin-bottom:10px;}
.news-card h3 a{
  color:var(--tx-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card:hover h3 a{color:var(--accent);text-decoration:none;}
.news-card .excerpt{
  font-size:14.5px;color:var(--tx-3);line-height:1.7;margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;font-size:12.5px;color:var(--tx-3);
  display:flex;align-items:center;gap:8px;
  border-top:1px solid var(--glass-line);padding-top:14px;
}
.news-empty{
  grid-column:1/-1;
  text-align:center;padding:64px 24px;
  background:var(--glass);border:1px dashed var(--glass-line);
  border-radius:var(--r-lg);
}
.news-empty i{
  font-size:30px;color:var(--tx-3);display:block;margin-bottom:14px;
}
.news-empty p{font-size:15px;color:var(--tx-2);margin-bottom:18px;}

/* ============================================================
   FAQ
   ============================================================ */
.faq-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.faq-side p{font-size:15px;color:var(--tx-2);margin-bottom:24px;}
.faq-side .contact-line{
  display:flex;align-items:center;gap:12px;
  padding:16px 18px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--glass-line);
  margin-bottom:14px;
}
.faq-side .contact-line i{color:var(--accent);font-size:15px;width:20px;text-align:center;}
.faq-side .contact-line b{display:block;font-size:13.5px;color:var(--tx-1);font-weight:600;}
.faq-side .contact-line span{font-size:13px;color:var(--tx-3);}
.faq-list{border-top:1px solid var(--glass-line);}
.faq-item{border-bottom:1px solid var(--glass-line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;border:0;cursor:pointer;
  padding:22px 16px 22px 0;text-align:left;
  color:var(--tx-1);font-size:17px;font-weight:600;line-height:1.5;
  transition:color .2s var(--ease),padding .2s var(--ease);
}
.faq-q:hover{color:var(--accent);}
.faq-q .sign{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--glass-line-strong);
  color:var(--tx-2);font-size:12px;
  transition:transform .28s var(--ease),background .28s var(--ease),color .28s var(--ease);
}
.faq-item.is-open .faq-q{color:var(--accent);}
.faq-item.is-open .faq-q .sign{
  transform:rotate(135deg);
  background:var(--accent);color:#0A1020;border-color:var(--accent);
}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .34s var(--ease),opacity .28s var(--ease),padding .28s var(--ease);
  opacity:0;padding:0 16px 0 0;
}
.faq-item.is-open .faq-a{
  max-height:320px;opacity:1;padding:0 16px 24px 0;
}
.faq-item.is-open{
  background:linear-gradient(90deg,rgba(255,255,255,.05),transparent 60%);
  box-shadow:inset 3px 0 0 var(--accent);
}
.faq-a p{font-size:14.5px;color:var(--tx-2);margin:0;line-height:1.8;}

/* ============================================================
   转化表单
   ============================================================ */
.lead-card{
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--glass-line);
  border-radius:var(--r-lg);
  padding:clamp(26px,3.4vw,48px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.13),var(--sh-card);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  display:grid;grid-template-columns:5fr 7fr;gap:48px;
}
.lead-intro h2{margin-bottom:14px;}
.lead-intro p{font-size:15px;color:var(--tx-2);margin-bottom:24px;}
.lead-points li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:var(--tx-2);margin-bottom:12px;
}
.lead-points i{color:var(--accent);font-size:13px;margin-top:5px;}
.lead-form .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1/-1;}
.field label{font-size:13px;color:var(--tx-2);font-weight:600;}
.field input,.field select,.field textarea{
  width:100%;height:52px;padding:0 16px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--glass-line);
  border-radius:var(--r-sm);
  color:var(--tx-1);font-size:14.5px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
  appearance:none;
}
.field textarea{height:auto;min-height:110px;padding:14px 16px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--tx-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(200,246,60,.22);
  outline:none;
  background:rgba(255,255,255,.06);
}
.field select{color:var(--tx-1);}
.field select option{background:#0C1424;color:#EDF2FB;}
.check-line{
  display:flex;align-items:flex-start;gap:10px;
  font-size:13px;color:var(--tx-3);margin:18px 0 22px;
}
.check-line input{
  width:17px;height:17px;margin-top:5px;accent-color:#C8F63C;flex:0 0 auto;
}
.form-tip{
  margin-top:16px;font-size:13.5px;color:var(--accent);
  opacity:0;transition:opacity .25s var(--ease);
}
.form-tip.is-on{opacity:1;}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  background:var(--footer-bg);
  border-top:1px solid var(--glass-line);
  padding:72px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:4fr 3fr 3fr 3fr;gap:40px;
  padding-bottom:52px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14px;color:var(--tx-3);line-height:1.8;max-width:300px;}
.footer-col h4{
  font-size:14px;font-weight:700;color:var(--tx-1);
  margin-bottom:18px;letter-spacing:.04em;
}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14px;color:var(--tx-3);}
.footer-col a:hover{color:var(--accent);text-decoration:none;}
.footer-col .plain{font-size:14px;color:var(--tx-3);}
.footer-bottom{
  border-top:1px solid var(--glass-line);
  padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--tx-3);
}
.footer-bottom a{color:var(--tx-3);}
.footer-bottom a:hover{color:var(--accent);text-decoration:none;}

/* ============================================================
   响应式
   ============================================================ */
@media (min-width:1440px){
  :root{--maxw:1320px;}
}
@media (max-width:1200px){
  :root{--sec-gap:88px;}
  .hero-grid{gap:40px;}
  .faq-grid{gap:40px;}
  .lead-card{gap:36px;}
  .footer-grid{grid-template-columns:4fr 3fr 3fr;row-gap:34px;}
}
@media (max-width:992px){
  :root{--sec-gap:72px;}
  .nav-links,.nav-actions{display:none;}
  .nav-toggle{display:flex;}
  .nav-capsule{padding:0 12px 0 16px;height:60px;}
  .hero{padding-top:44px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual .frame{aspect-ratio:16/10;}
  .matrix{grid-template-columns:1fr;}
  .matrix-main{min-height:340px;}
  .compare{grid-template-columns:1fr;gap:0;}
  .compare-divider{height:1px;width:auto;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .faq-grid{grid-template-columns:1fr;gap:36px;}
  .lead-card{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  body{font-size:15.5px;}
  .container{padding:0 20px;}
  .site-header{padding:14px 16px 0;}
  .nav-capsule{
    height:58px;padding:0 10px 0 14px;
    background:rgba(10,17,31,.97);
    backdrop-filter:none;-webkit-backdrop-filter:none;
  }
  .brand-text{font-size:15px;}
  .brand-mark{width:32px;height:32px;border-radius:10px;font-size:13px;}
  .metric-grid{grid-template-columns:1fr;}
  .metric-card:hover{transform:none;}
  .matrix-main .inner{padding:26px;}
  .compare-col{padding:26px 22px;}
  .news-grid{grid-template-columns:1fr;}
  .news-card:hover{transform:none;}
  .hero-facts{grid-template-columns:1fr 1fr;gap:18px 0;}
  .hero-fact:nth-child(2){border-right:0;}
  .hero-fact{border-right:0;padding-right:0;}
  .lead-form .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .rule::after{width:64px;}
}
@media (max-width:560px){
  :root{--sec-gap:64px;}
  h1{font-size:clamp(26px,7vw,34px);}
  .hero-cta .btn{width:100%;}
  .hero-facts{grid-template-columns:1fr;gap:14px;}
  .hero-fact{border-bottom:1px solid var(--glass-line);padding-bottom:12px;}
  .hero-fact:last-child{border-bottom:0;padding-bottom:0;}
  .hero-badge{left:12px;right:12px;bottom:12px;padding:12px 14px;}
  .metric-num{font-size:34px;}
  .news-head{flex-direction:column;align-items:flex-start;}
  .faq-q{font-size:15.5px;padding:18px 10px 18px 0;}
  .lead-card{padding:24px 18px;}
}
@media (max-width:420px){
  .container{padding:0 16px;}
  .btn{height:48px;padding:0 22px;font-size:14.5px;}
}

/* roulang page: article */
:root{
  --bg-ink:#070C16;
  --bg-panel:#0C1424;
  --bg-raise:#111A2E;
  --glass:rgba(255,255,255,.045);
  --glass-line:rgba(255,255,255,.09);
  --glass-line-strong:rgba(255,255,255,.18);
  --brand:#2F5BFF;
  --accent:#C8F63C;
  --hot:#FF7A2F;
  --tx-1:#EDF2FB;
  --tx-2:rgba(237,242,251,.72);
  --tx-3:rgba(237,242,251,.48);
  --radius:18px;
  --radius-lg:22px;
  --radius-sm:12px;
  --shadow:0 16px 44px rgba(3,8,20,.55);
  --container:1240px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--tx-1);
  background:var(--bg-ink);
  overflow-x:hidden;
  font-variant-numeric:tabular-nums;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
  opacity:.85;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:linear-gradient(115deg,transparent 38%,rgba(200,246,60,.055) 50%,transparent 62%);
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--accent)}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
table{background:transparent;border-collapse:collapse;width:100%}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 28px;
  position:relative;
  z-index:1;
}
.section{padding:96px 0;position:relative;z-index:1}
.section-tight{padding:64px 0}
.rule{height:1px;background:var(--glass-line);position:relative;margin:0}
.rule::after{content:"";position:absolute;left:0;top:0;height:1px;width:80px;background:var(--accent)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  padding:18px 0 10px;
  transition:padding .24s var(--ease);
}
.site-header.is-scrolled{padding:10px 0 6px}
.nav-shell{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  height:64px;
  padding:0 12px 0 20px;
  border-radius:999px;
  background:rgba(12,20,36,.72);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:0 12px 36px rgba(3,8,20,.45);
  transition:background .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled .nav-shell{
  background:rgba(9,15,28,.94);
  border-color:var(--glass-line-strong);
  box-shadow:0 18px 50px rgba(3,8,20,.68);
}
.brand{display:flex;align-items:center;gap:10px;color:var(--tx-1);flex:0 0 auto}
.brand:hover{color:var(--tx-1)}
.brand-mark{
  width:36px;height:36px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,rgba(47,91,255,.9),rgba(200,246,60,.85));
  color:#060B14;font-weight:800;font-size:17px;
  box-shadow:0 6px 18px rgba(47,91,255,.35);
}
.brand-text{font-weight:800;font-size:16px;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{
  display:inline-block;
  padding:9px 16px;
  border-radius:999px;
  font-size:14.5px;
  font-weight:500;
  color:var(--tx-2);
  position:relative;
  transition:color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.nav-link:hover{color:var(--tx-1);background:rgba(200,246,60,.1);transform:translateY(-1px)}
.nav-link.is-active{color:var(--accent);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:999px;
  border:1px solid var(--glass-line);background:rgba(255,255,255,.04);
  cursor:pointer;position:relative;
}
.nav-toggle span{
  position:absolute;left:13px;width:18px;height:2px;border-radius:2px;
  background:var(--tx-1);transition:transform .24s var(--ease),opacity .2s var(--ease);
}
.nav-toggle span:nth-child(1){top:16px}
.nav-toggle span:nth-child(2){top:21px}
.nav-toggle span:nth-child(3){top:26px}
.nav-toggle.is-open span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 30px;border-radius:999px;
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:all .22s var(--ease);white-space:nowrap;
}
.btn .arw{transition:transform .22s var(--ease)}
.btn-primary{
  background:var(--accent);color:#0A1206;
  box-shadow:0 0 0 1px rgba(200,246,60,.35),0 10px 30px rgba(200,246,60,.26);
}
.btn-primary:hover{
  color:#0A1206;filter:brightness(1.08);
  box-shadow:0 0 0 1px rgba(200,246,60,.45),0 14px 42px rgba(200,246,60,.4);
  transform:translateY(-1px);
}
.btn-primary:hover .arw{transform:translateX(4px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.24);color:var(--tx-1)}
.btn-ghost:hover{background:rgba(255,255,255,.06);color:var(--tx-1);border-color:rgba(255,255,255,.36)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}

/* ============ 通用标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;letter-spacing:.06em;font-weight:600;
  background:rgba(200,246,60,.12);color:var(--accent);
  border:1px solid rgba(200,246,60,.28);
}
.badge-brand{background:rgba(47,91,255,.14);color:#9DB4FF;border-color:rgba(47,91,255,.35)}
.eyebrow{
  font-size:12px;font-weight:700;letter-spacing:.16em;
  color:var(--accent);text-transform:uppercase;
}
.sec-head{margin-bottom:38px;max-width:760px}
.sec-head h2{
  font-size:clamp(22px,2.6vw,34px);
  font-weight:700;line-height:1.3;margin-top:12px;color:var(--tx-1);
}
.sec-head p{margin-top:12px;color:var(--tx-2);font-size:15.5px}
.sec-head .sec-line{width:64px;height:2px;background:var(--accent);border-radius:2px;margin-top:18px}

/* ============ 面包屑 ============ */
.crumbs{padding:22px 0 0;position:relative;z-index:1}
.crumbs ol{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--tx-3);overflow-x:auto;white-space:nowrap;scrollbar-width:none}
.crumbs ol::-webkit-scrollbar{display:none}
.crumbs li{display:flex;align-items:center;gap:10px}
.crumbs li+li::before{content:"";width:1px;height:12px;background:var(--glass-line-strong);display:inline-block}
.crumbs a{color:var(--tx-3)}
.crumbs a:hover{color:var(--accent)}
.crumbs .current{color:var(--accent)}

/* ============ 文章头部 ============ */
.article-head{padding:34px 0 30px;position:relative;z-index:1}
.article-head .head-inner{max-width:860px}
.article-head h1{
  font-size:clamp(28px,4vw,46px);
  font-weight:800;line-height:1.2;letter-spacing:-.01em;
  margin:18px 0 20px;color:var(--tx-1);
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13.5px;color:var(--tx-3)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--tx-3)}

.article-hero{
  margin:8px 0 0;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--glass-line);position:relative;
  box-shadow:var(--shadow);
}
.article-hero img{width:100%;height:auto;aspect-ratio:16/7;object-fit:cover;opacity:.94}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,22,.15),rgba(7,12,22,.72));
}

/* ============ 文章布局 ============ */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,780px) 260px;
  gap:56px;
  justify-content:center;
  align-items:start;
  padding:26px 0 0;
}
.article-main{min-width:0}
.article-aside{position:sticky;top:104px}
.toc-card{
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow);
  padding:20px 18px;
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.toc-card h3{font-size:14px;font-weight:700;color:var(--tx-1);letter-spacing:.04em;margin-bottom:14px}
.toc-card h3::after{content:"";display:block;width:28px;height:2px;background:var(--accent);border-radius:2px;margin-top:10px}
.toc-list li{margin-bottom:2px}
.toc-list a{
  display:block;font-size:13.5px;line-height:1.6;color:var(--tx-3);
  padding:7px 10px;border-radius:10px;border-left:2px solid transparent;
  transition:all .2s var(--ease);
}
.toc-list a:hover{color:var(--accent);background:rgba(255,255,255,.04);border-left-color:var(--accent)}
.aside-note{
  margin-top:16px;padding:16px;border-radius:var(--radius-sm);
  background:rgba(47,91,255,.1);border:1px solid rgba(47,91,255,.25);
  font-size:13px;line-height:1.7;color:var(--tx-2);
}
.aside-note strong{color:var(--tx-1);display:block;margin-bottom:6px;font-size:13.5px}

/* ============ 正文排版 ============ */
.article-body{
  font-size:17px;line-height:1.9;color:var(--tx-2);
  word-break:break-word;
}
.article-body h2{
  font-size:clamp(20px,2.2vw,26px);
  font-weight:700;line-height:1.4;color:var(--tx-1);
  margin:36px 0 14px;padding-left:15px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.34em;
  width:3px;height:.92em;background:var(--accent);border-radius:2px;
}
.article-body h3{font-size:19px;font-weight:600;color:var(--tx-1);margin:26px 0 10px}
.article-body h4{font-size:16.5px;font-weight:600;color:var(--tx-1);margin:20px 0 8px}
.article-body p{margin:0 0 16px}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(47,91,255,.4)}
.article-body a:hover{color:var(--accent);border-bottom-color:rgba(200,246,60,.6)}
.article-body strong{color:var(--tx-1);font-weight:700}
.article-body ul{margin:0 0 18px}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:9px}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.78em;
  width:6px;height:6px;border-radius:50%;background:var(--brand);
}
.article-body ol{list-style:decimal;padding-left:24px;margin:0 0 18px}
.article-body ol li{margin-bottom:9px;padding-left:4px}
.article-body ol li::marker{color:var(--accent);font-weight:700}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;
  border-left:3px solid var(--brand);
  background:var(--bg-raise);
  border-radius:0 14px 14px 0;
  color:var(--tx-2);font-size:16px;
}
.article-body img{border-radius:14px;margin:22px 0 10px}
.article-body figure{margin:22px 0}
.article-body figcaption{font-size:13px;color:var(--tx-3);margin-top:8px;text-align:center}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;background:transparent}
.article-body th{
  text-align:left;padding:12px 12px;color:var(--tx-1);font-weight:600;
  border-bottom:1px solid rgba(255,255,255,.2);background:transparent;
}
.article-body td{
  padding:12px 12px;color:var(--tx-2);
  border-bottom:1px solid var(--glass-line);
}
.article-body tr:hover td{background:rgba(255,255,255,.02)}
.article-body code{
  background:var(--bg-raise);color:var(--accent);
  padding:2px 7px;border-radius:6px;font-size:14px;
}
.article-body pre{
  background:var(--bg-raise);border:1px solid var(--glass-line);
  border-radius:14px;padding:18px;overflow:auto;margin:22px 0;
}
.article-body pre code{background:transparent;padding:0;color:var(--tx-2)}
.article-body hr{border:0;height:1px;background:var(--glass-line);margin:34px 0}

.article-empty{
  border-radius:var(--radius-lg);
  background:var(--glass);border:1px solid var(--glass-line);
  padding:56px 28px;text-align:center;box-shadow:var(--shadow);
}
.article-empty .icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:20px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,122,47,.12);border:1px solid rgba(255,122,47,.3);
  color:var(--hot);font-size:26px;font-weight:700;
}
.article-empty h2{font-size:22px;color:var(--tx-1);margin-bottom:10px}
.article-empty p{color:var(--tx-2);font-size:15px;margin-bottom:22px}

/* ============ 文末 CTA ============ */
.cta-band{
  margin-top:56px;
  border-radius:var(--radius-lg);
  background:linear-gradient(135deg,rgba(47,91,255,.16),rgba(200,246,60,.08));
  border:1px solid var(--glass-line-strong);
  padding:34px 32px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  flex-wrap:wrap;
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;color:var(--tx-1);line-height:1.35}
.cta-band p{color:var(--tx-2);font-size:14.5px;margin-top:8px}

/* ============ 相关推荐 ============ */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
  position:relative;
}
.rel-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;
  background:var(--accent);opacity:0;transition:opacity .22s var(--ease);
}
.rel-card:hover{transform:translateY(-3px);border-color:var(--glass-line-strong);box-shadow:0 22px 54px rgba(3,8,20,.7)}
.rel-card:hover::before{opacity:1}
.rel-card .thumb{aspect-ratio:16/9;overflow:hidden;position:relative}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.rel-card:hover .thumb img{transform:scale(1.05)}
.rel-card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,12,22,.1),rgba(7,12,22,.6))}
.rel-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:17.5px;font-weight:600;color:var(--tx-1);line-height:1.45}
.rel-body p{font-size:14px;line-height:1.7;color:var(--tx-2)}
.rel-card:hover h3{color:var(--accent)}
.rel-more{margin-top:auto;font-size:13.5px;font-weight:700;color:var(--accent);display:inline-flex;align-items:center;gap:6px}

/* ============ 上一篇/下一篇 ============ */
.pager{
  display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:44px;
}
.pager a{
  display:block;padding:20px 22px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--glass-line);
  transition:all .22s var(--ease);
}
.pager a:hover{border-color:var(--glass-line-strong);background:rgba(255,255,255,.06);transform:translateY(-2px)}
.pager .lab{font-size:12px;letter-spacing:.08em;color:var(--tx-3);display:block;margin-bottom:8px}
.pager .txt{font-size:15.5px;font-weight:600;color:var(--tx-1);line-height:1.5}
.pager a:hover .txt{color:var(--accent)}
.back-row{margin-top:26px;display:flex;justify-content:center}
.back-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--tx-2);
  padding:10px 22px;border-radius:999px;
  border:1px solid var(--glass-line);background:rgba(255,255,255,.03);
  transition:all .22s var(--ease);
}
.back-link:hover{color:var(--accent);border-color:rgba(200,246,60,.4);background:rgba(200,246,60,.08)}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:40px;
  background:#050A12;
  border-top:1px solid var(--glass-line);
  padding:66px 0 30px;
  position:relative;z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:44px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--tx-3);max-width:340px}
.footer-col h4{font-size:14.5px;font-weight:700;color:var(--tx-1);margin-bottom:16px;letter-spacing:.02em}
.footer-col ul li{margin-bottom:11px}
.footer-col a{font-size:14px;color:var(--tx-3)}
.footer-col a:hover{color:var(--accent)}
.footer-col .plain{font-size:14px;color:var(--tx-3)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--glass-line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--tx-3);
}
.footer-bottom a{color:var(--tx-3)}
.footer-bottom a:hover{color:var(--accent)}

/* ============ 响应式 ============ */
@media (min-width:1440px){
  :root{--container:1320px;}
}
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:40px}
}
@media (max-width:992px){
  .section{padding:72px 0}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .article-aside{display:none}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:64px 0}
  .section-tight{padding:48px 0}
  .site-header{padding:12px 0 6px}
  .nav-shell{height:58px;padding:0 10px 0 14px;border-radius:999px}
  .nav-toggle{display:block}
  .nav-links{
    position:fixed;left:16px;right:16px;top:88px;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    padding:16px;border-radius:var(--radius-lg);
    background:rgba(9,15,28,.99);
    border:1px solid var(--glass-line-strong);
    box-shadow:0 24px 60px rgba(3,8,20,.8);
    max-height:calc(100vh - 120px);overflow-y:auto;
  }
  .nav-links.is-open{display:flex}
  .nav-link{font-size:16.5px;padding:14px 16px;border-radius:14px;text-align:left}
  .nav-link.is-active::after{display:none}
  .article-head h1{font-size:clamp(24px,6.4vw,32px)}
  .article-body{font-size:16px;line-height:1.88}
  .cta-band{padding:26px 22px}
  .rel-grid{grid-template-columns:1fr;gap:18px}
  .pager{grid-template-columns:1fr;gap:14px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .article-hero img{aspect-ratio:16/10}
}
@media (max-width:560px){
  .container{padding:0 16px}
  .brand-text{font-size:14px}
  .brand-mark{width:32px;height:32px;font-size:15px;border-radius:10px}
  .nav-actions .btn{height:38px;padding:0 16px;font-size:13px}
  .article-meta{font-size:12.5px;gap:10px}
  .badge{height:24px;font-size:11.5px}
  .btn{height:48px;padding:0 22px;font-size:14.5px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:420px){
  .nav-actions .btn{display:none}
  .article-head{padding:22px 0 20px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root{
  --bg-ink:#070C16;
  --bg-panel:#0C1424;
  --bg-raise:#111A2E;
  --glass:rgba(255,255,255,.045);
  --glass-line:rgba(255,255,255,.09);
  --brand:#2F5BFF;
  --accent:#C8F63C;
  --hot:#FF7A2F;
  --tx-1:#EDF2FB;
  --tx-2:rgba(237,242,251,.72);
  --tx-3:rgba(237,242,251,.48);
  --radius-lg:22px;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 16px 44px rgba(3,8,20,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1240px;
  --pad:28px;
  --nav-h:64px;
}

/* ===== 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-ink);
  color:var(--tx-1);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px),
    linear-gradient(115deg,transparent 42%,rgba(200,246,60,.05) 50%,transparent 58%);
  background-size:56px 56px,56px 56px,100% 100%;
  mask-image:radial-gradient(120% 90% at 50% 0%,#000 25%,transparent 100%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:radial-gradient(90% 60% at 80% -10%,rgba(47,91,255,.14),transparent 70%);
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--accent);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:3px;
  border-radius:6px;
}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
strong{font-weight:700;}

/* ===== 布局容器 ===== */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--pad);
  position:relative;
  z-index:1;
}
.section{padding:96px 0;position:relative;}
.section + .section{border-top:1px solid var(--glass-line);}
.section + .section::before{
  content:"";
  position:absolute;
  top:-1px;
  left:calc(50% - 44px);
  width:88px;
  height:1px;
  background:var(--accent);
  opacity:.55;
}
.section-head{max-width:720px;margin-bottom:56px;}
.tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.14em;
  color:var(--accent);
  text-transform:uppercase;
  margin-bottom:14px;
}
.tag::before{
  content:"";
  width:22px;
  height:1px;
  background:var(--accent);
  opacity:.7;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,34px);
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.01em;
  margin-bottom:16px;
}
.section-desc{color:var(--tx-2);font-size:15px;}

/* ===== 头图 Hero ===== */
.hero{
  position:relative;
  padding:170px 0 96px;
  overflow:hidden;
  border-bottom:1px solid var(--glass-line);
}
.hero-bg{position:absolute;inset:0;z-index:0;}
.hero-bg img{
  width:100%;height:100%;
  object-fit:cover;
  opacity:.42;
  filter:saturate(.85);
}
.hero-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,12,22,.62) 0%,rgba(7,12,22,.86) 55%,var(--bg-ink) 100%);
}
.hero-inner{position:relative;z-index:1;max-width:860px;}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  color:var(--tx-3);
  margin-bottom:30px;
  white-space:nowrap;
  overflow-x:auto;
  scrollbar-width:none;
}
.breadcrumb::-webkit-scrollbar{display:none;}
.breadcrumb a{color:var(--tx-3);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{opacity:.4;}
.breadcrumb .current{color:var(--brand);}
.eyebrow{
  font-size:12px;
  letter-spacing:.16em;
  color:var(--accent);
  margin-bottom:16px;
}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);
  font-weight:800;
  line-height:1.18;
  letter-spacing:-.01em;
  margin-bottom:20px;
}
.hero-lead{
  color:var(--tx-2);
  font-size:clamp(15px,1.5vw,17px);
  line-height:1.8;
  max-width:640px;
  margin-bottom:8px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin:32px 0 44px;
}
.hero-facts{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
  padding-top:26px;
  border-top:1px solid var(--glass-line);
  max-width:820px;
}
.hero-facts li{display:flex;flex-direction:column;gap:4px;}
.hero-facts strong{
  font-size:clamp(22px,2.4vw,30px);
  font-weight:800;
  color:var(--accent);
  line-height:1.1;
  letter-spacing:-.02em;
}
.hero-facts span{font-size:12.5px;color:var(--tx-3);}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  height:52px;
  padding:0 30px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-primary{
  background:var(--accent);
  color:#08110A;
  box-shadow:0 0 0 1px rgba(200,246,60,.35),0 10px 30px rgba(200,246,60,.26);
}
.btn-primary:hover{
  background:#d5ff59;
  color:#08110A;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(200,246,60,.45),0 14px 42px rgba(200,246,60,.34);
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  color:var(--tx-1);
  border:1px solid rgba(255,255,255,.24);
}
.btn-ghost:hover{
  background:rgba(255,255,255,.06);
  color:var(--tx-1);
  border-color:rgba(255,255,255,.4);
}
.btn-sm{height:42px;padding:0 22px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.link-arrow::after{content:"→";transition:transform .22s var(--ease);}
.link-arrow:hover{color:var(--accent);text-decoration:underline;}
.link-arrow:hover::after{transform:translateX(4px);}

/* ===== 导航 ===== */
.site-header{
  position:fixed;
  top:20px;
  left:0;
  right:0;
  z-index:60;
  transition:top .3s var(--ease);
}
.site-header.is-stuck{top:10px;}
.nav-shell{
  display:flex;
  align-items:center;
  gap:18px;
  height:var(--nav-h);
  padding:0 10px 0 18px;
  border-radius:999px;
  background:rgba(10,16,30,.72);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:0 8px 30px rgba(3,8,20,.35);
  transition:background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-stuck .nav-shell{
  background:rgba(8,13,24,.94);
  border-color:rgba(255,255,255,.16);
  box-shadow:var(--shadow);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:50%;
  background:linear-gradient(140deg,var(--accent),#8FD420);
  color:#08110A;
  font-weight:800;
  font-size:15px;
}
.brand-text{
  font-size:15px;
  font-weight:800;
  letter-spacing:.01em;
  color:var(--tx-1);
}
.brand:hover .brand-text{color:var(--accent);}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:8px;
  flex:1;
}
.nav-link{
  position:relative;
  padding:9px 15px;
  border-radius:999px;
  font-size:14.5px;
  color:var(--tx-2);
  transition:color .22s var(--ease),background .22s var(--ease),transform .22s var(--ease);
}
.nav-link:hover{
  color:var(--tx-1);
  background:rgba(200,246,60,.1);
  transform:translateY(-1px);
}
.nav-link.is-active{color:var(--accent);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:3px;
  transform:translateX(-50%);
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:50%;
  border:1px solid var(--glass-line);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:16px;height:2px;
  border-radius:2px;
  background:var(--tx-1);
}
.mobile-drawer{
  display:none;
  position:fixed;
  inset:0;
  z-index:70;
  padding:96px 24px 40px;
  background:rgba(7,12,22,.98);
  border-bottom:1px solid var(--glass-line);
  transform:translateY(-12px);
  opacity:0;
  pointer-events:none;
  transition:opacity .26s var(--ease),transform .26s var(--ease);
}
.mobile-drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
.mobile-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:32px;}
.mobile-nav a{
  font-size:20px;
  font-weight:600;
  color:var(--tx-1);
  padding:14px 4px;
  border-bottom:1px solid var(--glass-line);
}
.mobile-nav a.is-active{color:var(--accent);}

/* ===== 指标卡 ===== */
.metric-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.card{
  position:relative;
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--radius);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.12);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  padding:26px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.card:hover{
  transform:translateY(-3px);
  border-color:rgba(255,255,255,.18);
}
.metric-card::before{
  content:"";
  position:absolute;
  left:0;top:24px;bottom:24px;
  width:2px;
  border-radius:2px;
  background:var(--accent);
  opacity:0;
  transition:opacity .22s var(--ease);
}
.metric-card:hover::before{opacity:1;}
.metric-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:14px;
}
.metric-label{font-size:13px;color:var(--tx-3);letter-spacing:.04em;}
.trend{
  font-size:12px;
  padding:3px 10px;
  border-radius:999px;
  border:1px solid transparent;
  white-space:nowrap;
}
.trend.up{color:var(--accent);background:rgba(200,246,60,.1);border-color:rgba(200,246,60,.25);}
.trend.down{color:var(--hot);background:rgba(255,122,47,.1);border-color:rgba(255,122,47,.25);}
.metric-value{
  font-size:clamp(30px,3.4vw,42px);
  font-weight:800;
  line-height:1.1;
  letter-spacing:-.02em;
  color:var(--tx-1);
}
.metric-value .unit{
  font-size:14px;
  font-weight:600;
  color:var(--tx-3);
  margin-left:6px;
  letter-spacing:0;
}
.metric-note{font-size:13.5px;color:var(--tx-2);margin-top:8px;}
.bars{
  display:flex;
  align-items:flex-end;
  gap:6px;
  height:44px;
  margin-top:20px;
}
.bars i{
  flex:1;
  height:var(--h);
  border-radius:2px;
  background:linear-gradient(180deg,rgba(200,246,60,.85),rgba(200,246,60,.18));
  opacity:.75;
}
.metric-card:nth-child(2) .bars i{background:linear-gradient(180deg,rgba(47,91,255,.9),rgba(47,91,255,.16));}

/* ===== 数据清单 ===== */
.catalogue-layout{
  display:grid;
  grid-template-columns:1.65fr .95fr;
  gap:32px;
  align-items:start;
}
.catalogue-list{border-top:1px solid var(--glass-line);}
.cat-item{
  display:grid;
  grid-template-columns:64px 1fr auto;
  gap:20px;
  align-items:center;
  padding:24px 4px;
  border-bottom:1px solid var(--glass-line);
  transition:background .22s var(--ease),padding-left .22s var(--ease);
}
.cat-item:hover{background:rgba(255,255,255,.03);padding-left:10px;}
.cat-no{
  font-size:13px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:.08em;
}
.cat-body h3{
  font-size:18px;
  font-weight:600;
  margin-bottom:4px;
  line-height:1.5;
}
.cat-body p{font-size:14.5px;color:var(--tx-2);line-height:1.7;}
.cat-meta{
  font-size:12px;
  color:var(--tx-3);
  border:1px solid var(--glass-line);
  border-radius:999px;
  padding:4px 12px;
  white-space:nowrap;
}
.catalogue-aside{position:sticky;top:110px;padding:22px;}
.catalogue-aside img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:14px;
  margin-bottom:20px;
}
.catalogue-aside h3{font-size:19px;font-weight:600;margin-bottom:14px;}
.mini-list li{
  display:flex;
  gap:12px;
  font-size:14px;
  color:var(--tx-2);
  padding:10px 0;
  border-bottom:1px dashed var(--glass-line);
}
.mini-list li span{
  color:var(--accent);
  font-weight:600;
  white-space:nowrap;
  font-size:12.5px;
}
.catalogue-aside .btn{margin-top:20px;}

/* ===== FAQ ===== */
.faq-layout{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:48px;
  align-items:start;
}
.faq-intro h2{
  font-size:clamp(22px,2.6vw,32px);
  font-weight:700;
  line-height:1.3;
  margin-bottom:14px;
}
.faq-intro p{color:var(--tx-2);font-size:15px;margin-bottom:20px;}
.faq-list{border-top:1px solid var(--glass-line);}
.faq-item{border-bottom:1px solid var(--glass-line);}
.faq-item h3{margin:0;font-size:16px;font-weight:600;}
.faq-btn{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  text-align:left;
  padding:22px 4px;
  font-size:16px;
  font-weight:600;
  color:var(--tx-1);
  transition:color .22s var(--ease),padding-left .22s var(--ease);
}
.faq-btn:hover{color:var(--accent);}
.faq-icon{
  position:relative;
  flex-shrink:0;
  width:18px;height:18px;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--accent);
  border-radius:2px;
  transition:transform .26s var(--ease),opacity .26s var(--ease);
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-panel{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s var(--ease);
}
.faq-panel p{
  font-size:14.5px;
  color:var(--tx-2);
  line-height:1.8;
  padding:0 4px 22px 15px;
  border-left:3px solid transparent;
}
.faq-item.is-open .faq-btn{color:var(--accent);}
.faq-item.is-open .faq-panel p{
  border-left-color:var(--accent);
  color:var(--tx-1);
}
.faq-item.is-open{background:rgba(255,255,255,.03);}

/* ===== CTA ===== */
.cta-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
  padding:clamp(28px,4vw,48px);
  border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(47,91,255,.14),rgba(200,246,60,.07) 65%,transparent);
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.12);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.cta-text h2{
  font-size:clamp(22px,2.6vw,32px);
  font-weight:700;
  line-height:1.3;
  margin-bottom:12px;
}
.cta-text p{color:var(--tx-2);font-size:15px;max-width:520px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;
  z-index:1;
  background:#050A12;
  border-top:1px solid var(--glass-line);
  padding:72px 0 32px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid var(--glass-line);
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--tx-2);line-height:1.8;max-width:340px;}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--tx-1);
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--tx-2);}
.footer-col a:hover{color:var(--accent);}
.footer-col .plain{font-size:14px;color:var(--tx-2);}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:26px;
  font-size:13px;
  color:var(--tx-3);
}
.footer-bottom a{color:var(--tx-3);}
.footer-bottom a:hover{color:var(--accent);}

/* ===== 响应式 ===== */
@media (min-width:1440px){
  :root{--container:1320px;}
}

@media (max-width:1200px){
  .catalogue-layout{grid-template-columns:1.5fr 1fr;}
}

@media (max-width:1024px){
  .section{padding:80px 0;}
  .catalogue-layout{grid-template-columns:1fr;gap:40px;}
  .catalogue-aside{position:static;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .footer-brand{grid-column:1 / -1;}
}

@media (max-width:768px){
  :root{--pad:20px;--nav-h:60px;}
  body{font-size:15.5px;}
  body::before{background-size:44px 44px,44px 44px,100% 100%;}
  .site-header{top:12px;}
  .nav-shell{
    backdrop-filter:none;
    -webkit-backdrop-filter:none;
    background:rgba(9,14,26,.98);
    padding:0 10px 0 14px;
  }
  .nav-links{display:none;}
  .nav-actions .btn-primary{display:none;}
  .nav-toggle{display:flex;}
  .mobile-drawer{display:block;}
  .hero{padding:132px 0 68px;}
  .hero-facts{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  .hero-facts strong{font-size:24px;}
  .section{padding:64px 0;}
  .section-head{margin-bottom:36px;}
  .metric-grid{grid-template-columns:1fr;}
  .card{padding:22px;}
  .cat-item{grid-template-columns:44px 1fr;gap:14px;align-items:start;}
  .cat-meta{grid-column:2;justify-self:start;}
  .cta-card{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

@media (max-width:560px){
  :root{--pad:16px;}
  .hero{padding:120px 0 56px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-facts{grid-template-columns:1fr 1fr;}
  .section{padding:56px 0;}
  .metric-value{font-size:30px;}
  .btn{height:48px;padding:0 22px;font-size:14.5px;}
  .btn-sm{height:40px;}
  .mobile-nav a{font-size:18px;}
  .cat-body h3{font-size:16.5px;}
  .cat-body p{font-size:14px;}
}

@media (max-width:420px){
  .hero-facts{grid-template-columns:1fr;}
  .footer-col h4{font-size:13.5px;}
}

/* roulang page: category2 */
:root{
  --bg-ink:#070C16;
  --bg-panel:#0C1424;
  --bg-raise:#111A2E;
  --glass:rgba(255,255,255,.045);
  --glass-line:rgba(255,255,255,.09);
  --brand:#2F5BFF;
  --accent:#C8F63C;
  --hot:#FF7A2F;
  --tx-1:#EDF2FB;
  --tx-2:rgba(237,242,251,.72);
  --tx-3:rgba(237,242,251,.48);
  --radius-lg:22px;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 16px 44px rgba(3,8,20,.55);
  --shadow-soft:0 10px 30px rgba(3,8,20,.4);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gap-section:104px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-ink);
  color:var(--tx-1);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.005em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  top:-30%;
  left:-10%;
  width:120%;
  height:120%;
  background:linear-gradient(112deg,transparent 42%,rgba(200,246,60,.055) 50%,transparent 58%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--accent)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:6px;
}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--tx-1);letter-spacing:-.01em}
p{margin:0 0 14px}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(200,246,60,.28);color:#fff}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 28px;
  position:relative;
  z-index:2;
}
main{position:relative;z-index:1}

/* ============ 顶部悬浮胶囊导航 ============ */
.site-header{
  position:fixed;
  top:20px;
  left:0;
  right:0;
  z-index:120;
  padding:0 24px;
  transition:top .3s var(--ease);
}
.nav-shell{
  max-width:1320px;
  margin:0 auto;
  height:64px;
  display:flex;
  align-items:center;
  gap:16px;
  padding:0 12px 0 18px;
  border-radius:999px;
  background:rgba(12,20,36,.74);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:0 12px 34px rgba(3,8,20,.45);
  transition:background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-stuck .nav-shell{
  background:rgba(8,13,24,.94);
  border-color:rgba(255,255,255,.17);
  box-shadow:0 18px 46px rgba(3,8,20,.66);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--tx-1);
  font-weight:800;
  font-size:16px;
  flex:0 0 auto;
  white-space:nowrap;
}
.brand:hover{color:var(--tx-1)}
.brand-mark{
  width:34px;
  height:34px;
  border-radius:11px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(135deg,var(--brand),#1b3ecb);
  color:#fff;
  font-size:15px;
  font-weight:800;
  box-shadow:0 6px 18px rgba(47,91,255,.4);
}
.brand-text{letter-spacing:.01em}

.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin:0 auto;
  padding:0;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 16px;
  border-radius:999px;
  font-size:14.5px;
  color:var(--tx-2);
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.nav-link:hover{
  color:var(--tx-1);
  background:rgba(200,246,60,.1);
  transform:translateY(-1px);
}
.nav-link.is-active{color:var(--accent)}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:3px;
  width:20px;
  height:2px;
  border-radius:2px;
  transform:translateX(-50%);
  background:var(--accent);
  box-shadow:0 0 10px rgba(200,246,60,.7);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:999px;
  border:1px solid var(--glass-line);
  background:rgba(255,255,255,.05);
  color:var(--tx-1);
  font-size:16px;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.2)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:52px;
  padding:0 30px;
  border-radius:999px;
  font-size:15.5px;
  font-weight:600;
  letter-spacing:.01em;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .25s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
}
.btn i{font-size:13px;transition:transform .2s var(--ease)}
.btn:hover i{transform:translateX(4px)}
.btn-primary{
  background:var(--accent);
  color:#0A1018;
  box-shadow:0 0 0 1px rgba(200,246,60,.35),0 10px 30px rgba(200,246,60,.26);
}
.btn-primary:hover{
  background:#d4fb57;
  color:#0A1018;
  filter:brightness(1.06);
  box-shadow:0 0 0 1px rgba(200,246,60,.45),0 14px 42px rgba(200,246,60,.34);
}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:transparent;
  color:var(--tx-1);
  border-color:rgba(255,255,255,.24);
}
.btn-ghost:hover{
  background:rgba(255,255,255,.06);
  color:var(--tx-1);
  border-color:rgba(255,255,255,.36);
}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}

/* ============ 面包屑 ============ */
.crumbs{
  padding:120px 0 0;
  font-size:12.5px;
  color:var(--tx-3);
  letter-spacing:.05em;
}
.crumbs ol{display:flex;align-items:center;gap:10px;overflow-x:auto;white-space:nowrap;scrollbar-width:none}
.crumbs ol::-webkit-scrollbar{display:none}
.crumbs li{display:inline-flex;align-items:center;gap:10px}
.crumbs li+li::before{content:"|";color:rgba(255,255,255,.18)}
.crumbs a{color:var(--tx-3)}
.crumbs a:hover{color:var(--accent)}
.crumbs .current{color:var(--brand);font-weight:600}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:44px 0 84px;
  overflow:hidden;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(100deg,rgba(7,12,22,.95) 0%,rgba(7,12,22,.82) 45%,rgba(7,12,22,.72) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center right;
  z-index:0;
}
.hero-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,12,22,.5) 0%,rgba(7,12,22,.2) 40%,var(--bg-ink) 100%);
}
.hero-inner{position:relative;z-index:2;max-width:820px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:12px;
  letter-spacing:.14em;
  color:var(--accent);
  text-transform:uppercase;
  margin-bottom:18px;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:var(--accent);
  box-shadow:0 0 8px rgba(200,246,60,.8);
}
h1{
  font-size:clamp(30px,4.4vw,52px);
  font-weight:800;
  line-height:1.18;
  letter-spacing:-.01em;
  margin-bottom:20px;
}
h1 .hl{color:var(--accent)}
.hero-sub{
  font-size:17px;
  line-height:1.85;
  color:var(--tx-2);
  max-width:660px;
  margin-bottom:30px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}
.hero-metrics{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
  padding-top:26px;
  border-top:1px solid var(--glass-line);
  max-width:780px;
}
.metric-num{
  font-size:clamp(22px,2.4vw,30px);
  font-weight:800;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.metric-num span{font-size:13px;color:var(--tx-3);margin-left:3px}
.metric-cap{font-size:13px;color:var(--tx-3);line-height:1.55}

/* ============ 通用板块 ============ */
.section{padding:var(--gap-section) 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(12,20,36,.55),rgba(7,12,22,0))}
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head h2{
  font-size:clamp(22px,2.6vw,34px);
  font-weight:700;
  line-height:1.3;
  margin-bottom:14px;
}
.sec-head p{color:var(--tx-2);font-size:15.5px;margin:0}
.rule{
  position:relative;
  height:1px;
  background:var(--glass-line);
  margin:0 0 56px;
}
.rule::after{
  content:"";
  position:absolute;
  left:0;
  top:0;
  width:80px;
  height:1px;
  background:var(--accent);
  box-shadow:0 0 12px rgba(200,246,60,.75);
}

/* ============ 安全能力条目清单 ============ */
.cap-list{
  border:1px solid var(--glass-line);
  border-radius:var(--radius-lg);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.cap-item{
  display:grid;
  grid-template-columns:76px minmax(0,1fr) 220px;
  gap:24px;
  align-items:center;
  padding:26px 30px;
  border-bottom:1px solid var(--glass-line);
  transition:background .22s var(--ease);
}
.cap-item:last-child{border-bottom:0}
.cap-item:hover{background:rgba(200,246,60,.05)}
.cap-idx{
  font-size:13px;
  letter-spacing:.1em;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  font-weight:700;
}
.cap-title{font-size:19px;font-weight:600;margin-bottom:6px}
.cap-desc{font-size:14.5px;line-height:1.7;color:var(--tx-2);margin:0}
.cap-tag{
  justify-self:end;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--tx-2);
  padding:7px 14px;
  border-radius:999px;
  border:1px solid var(--glass-line);
  background:rgba(255,255,255,.03);
}
.cap-tag i{color:var(--accent);font-size:11px}
.cap-tag.warn i{color:var(--hot)}

/* ============ 3/9 粘性锚点 + 时间轴 ============ */
.split{
  display:grid;
  grid-template-columns:280px minmax(0,1fr);
  gap:56px;
  align-items:start;
}
.anchor-nav{
  position:sticky;
  top:108px;
  padding:26px 22px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-soft);
}
.anchor-title{
  font-size:12px;
  letter-spacing:.14em;
  color:var(--tx-3);
  text-transform:uppercase;
  margin:0 0 16px;
}
.anchor-nav ul li+li{margin-top:4px}
.anchor-nav a{
  display:block;
  padding:10px 12px;
  border-radius:10px;
  font-size:14.5px;
  color:var(--tx-2);
  border-left:2px solid transparent;
  transition:all .2s var(--ease);
}
.anchor-nav a:hover{color:var(--tx-1);background:rgba(255,255,255,.05)}
.anchor-nav a.is-active{
  color:var(--accent);
  background:rgba(200,246,60,.08);
  border-left-color:var(--accent);
}
.anchor-contact{
  margin-top:22px;
  padding-top:18px;
  border-top:1px solid var(--glass-line);
  font-size:13.5px;
  color:var(--tx-3);
  line-height:1.75;
}
.anchor-contact strong{display:block;color:var(--tx-1);font-size:15px;margin-bottom:4px;font-variant-numeric:tabular-nums}

.timeline{position:relative;padding-left:38px}
.timeline::before{
  content:"";
  position:absolute;
  left:11px;
  top:8px;
  bottom:8px;
  width:1px;
  background:linear-gradient(180deg,rgba(200,246,60,.6),rgba(200,246,60,.1));
}
.tl-item{position:relative;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";
  position:absolute;
  left:-33px;
  top:7px;
  width:12px;
  height:12px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 5px rgba(200,246,60,.13);
}
.tl-step{
  font-size:12px;
  letter-spacing:.12em;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  margin-bottom:6px;
}
.tl-title{font-size:19px;font-weight:600;margin-bottom:8px}
.tl-desc{font-size:14.8px;line-height:1.75;color:var(--tx-2);margin:0;max-width:660px}
.tl-note{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:12px;
  font-size:12.5px;
  color:var(--tx-3);
  padding:5px 12px;
  border-radius:999px;
  background:rgba(47,91,255,.12);
  border:1px solid rgba(47,91,255,.28);
}
.tl-note i{color:#7d9bff;font-size:11px}

/* ============ 图片条 ============ */
.figure-band{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow);
  margin-top:56px;
}
.figure-band img{width:100%;height:280px;object-fit:cover;filter:saturate(1.05)}
.figure-band figcaption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:22px 26px;
  font-size:13.5px;
  color:var(--tx-2);
  background:linear-gradient(180deg,rgba(7,12,22,0),rgba(7,12,22,.88));
}

/* ============ FAQ ============ */
.faq-wrap{
  display:grid;
  grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);
  gap:56px;
  align-items:start;
}
.faq-aside p{color:var(--tx-2);font-size:15.5px;margin-bottom:22px}
.faq-aside .phone{
  display:block;
  font-size:24px;
  font-weight:800;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  margin-bottom:6px;
}
.faq-list{
  border-radius:var(--radius-lg);
  border:1px solid var(--glass-line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--glass-line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:22px 26px;
  background:transparent;
  border:0;
  text-align:left;
  cursor:pointer;
  color:var(--tx-1);
  font-size:16.5px;
  font-weight:600;
  line-height:1.6;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.faq-q:hover{background:rgba(255,255,255,.04)}
.faq-q .sign{
  flex:0 0 auto;
  width:26px;height:26px;
  border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--glass-line);
  color:var(--accent);
  font-size:12px;
  transition:transform .25s var(--ease),background .25s var(--ease);
}
.faq-item.is-open .faq-q{color:var(--accent);background:rgba(200,246,60,.05)}
.faq-item.is-open .sign{transform:rotate(135deg);background:rgba(200,246,60,.16)}
.faq-a{
  display:none;
  padding:0 26px 24px 26px;
  font-size:14.8px;
  line-height:1.8;
  color:var(--tx-2);
  border-left:3px solid var(--accent);
  margin-left:0;
}
.faq-item.is-open .faq-a{display:block}

/* ============ CTA 卡片 ============ */
.cta-card{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--glass-line);
  background:linear-gradient(120deg,rgba(47,91,255,.16),rgba(200,246,60,.07) 60%,rgba(12,20,36,.6));
  box-shadow:var(--shadow);
  padding:52px;
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
  gap:44px;
  align-items:center;
}
.cta-card h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;margin-bottom:14px;line-height:1.35}
.cta-card p{color:var(--tx-2);font-size:15.5px;margin-bottom:26px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-figure{
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow-soft);
}
.cta-figure img{width:100%;height:230px;object-fit:cover}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  background:#050A12;
  border-top:1px solid var(--glass-line);
  position:relative;
  z-index:2;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));
  gap:44px;
  padding:64px 0 44px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--tx-3);max-width:340px;margin:0}
.footer-col h4{
  font-size:13px;
  letter-spacing:.1em;
  color:var(--tx-1);
  margin-bottom:16px;
  font-weight:700;
}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--tx-3)}
.footer-col a:hover{color:var(--accent)}
.footer-col .plain{font-size:14px;color:var(--tx-3);font-variant-numeric:tabular-nums}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  padding:22px 0 32px;
  border-top:1px solid var(--glass-line);
  font-size:13px;
  color:var(--tx-3);
}
.footer-bottom a{color:var(--tx-2)}
.footer-bottom a:hover{color:var(--accent)}

/* ============ 滚动出现动画 ============ */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (min-width:1440px){
  .container{max-width:1320px}
  .nav-shell{max-width:1360px}
}
@media (max-width:1200px){
  :root{--gap-section:88px}
  .cap-item{grid-template-columns:64px minmax(0,1fr) 180px;gap:18px}
  .split{grid-template-columns:240px minmax(0,1fr);gap:40px}
}
@media (max-width:992px){
  .hero-metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
  .split{grid-template-columns:1fr}
  .anchor-nav{position:static;padding:20px}
  .anchor-nav ul{display:flex;flex-wrap:wrap;gap:6px}
  .anchor-nav ul li+li{margin-top:0}
  .anchor-nav a{border-left:0;border:1px solid var(--glass-line);padding:8px 14px;border-radius:999px;font-size:13.5px}
  .anchor-nav a.is-active{border-color:rgba(200,246,60,.4)}
  .anchor-contact{display:none}
  .faq-wrap{grid-template-columns:1fr;gap:34px}
  .cta-card{grid-template-columns:1fr;padding:38px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}
}
@media (max-width:768px){
  :root{--gap-section:64px}
  .container{padding:0 20px}
  .site-header{top:12px;padding:0 14px}
  .nav-shell{height:58px;padding:0 10px 0 14px}
  .brand{font-size:15px}
  .brand-mark{width:30px;height:30px;border-radius:10px;font-size:13px}
  .nav-toggle{display:inline-flex}
  .nav-links{
    display:none;
    position:absolute;
    top:70px;
    left:14px;
    right:14px;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:18px;
    border-radius:var(--radius-lg);
    background:#080E1B;
    border:1px solid var(--glass-line);
    box-shadow:var(--shadow);
    backdrop-filter:none;
    -webkit-backdrop-filter:none;
  }
  .nav-links.is-open{display:flex}
  .nav-link{width:100%;padding:14px 16px;font-size:16.5px;border-radius:14px}
  .nav-link.is-active::after{left:16px;transform:none;bottom:8px}
  .nav-actions .btn-primary{display:none}
  .crumbs{padding-top:96px}
  .page-hero{padding:24px 0 60px}
  .hero-cta{flex-direction:column;align-items:stretch}
  .btn{width:100%}
  .hero-metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;padding-top:22px}
  .cap-item{grid-template-columns:1fr;gap:10px;padding:22px 20px}
  .cap-tag{justify-self:start}
  .timeline{padding-left:30px}
  .timeline::before{left:8px}
  .tl-item::before{left:-28px;width:10px;height:10px}
  .figure-band img{height:200px}
  .cta-card{padding:26px 22px;gap:28px}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding:48px 0 32px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .hero-metrics{grid-template-columns:1fr}
  .faq-q{padding:18px 18px;font-size:15.5px}
  .faq-a{padding:0 18px 20px 18px}
  .metric-num{font-size:24px}
  h1{font-size:28px}
}

/* roulang page: category3 */
:root{
  --bg-ink:#070C16;
  --bg-panel:#0C1424;
  --bg-raise:#111A2E;
  --glass:rgba(255,255,255,0.045);
  --glass-line:rgba(255,255,255,0.09);
  --glass-line-strong:rgba(255,255,255,0.18);
  --brand:#2F5BFF;
  --accent:#C8F63C;
  --hot:#FF7A2F;
  --tx-1:#EDF2FB;
  --tx-2:rgba(237,242,251,0.72);
  --tx-3:rgba(237,242,251,0.48);
  --radius-sm:12px;
  --radius:18px;
  --radius-lg:22px;
  --shadow:0 16px 44px rgba(3,8,20,.55);
  --shadow-soft:0 10px 30px rgba(3,8,20,.4);
  --container:1240px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--bg-ink);
  color:var(--tx-1);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.032) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,0.032) 1px,transparent 1px);
  background-size:56px 56px;
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  top:-30%;
  left:50%;
  width:120%;
  height:80%;
  transform:translateX(-50%) rotate(-8deg);
  background:linear-gradient(90deg,transparent,rgba(200,246,60,0.055),transparent);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--accent);}
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--tx-1);font-weight:700;}
p{margin:0 0 14px;color:var(--tx-2);}
h1{font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.18;letter-spacing:-0.01em;}
h2{font-size:clamp(22px,2.6vw,34px);font-weight:700;line-height:1.3;}
h3{font-size:19px;font-weight:600;line-height:1.45;}
::selection{background:rgba(200,246,60,.28);}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 28px;
  position:relative;
  z-index:2;
}
.section{padding:104px 0;position:relative;}
.section+.section{border-top:1px solid rgba(255,255,255,0.06);}
.section-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--accent);
  text-transform:uppercase;
  margin-bottom:12px;
}
.section-tag::before{
  content:"";
  width:26px;
  height:2px;
  background:linear-gradient(90deg,var(--accent),transparent);
  display:inline-block;
}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head p{font-size:16px;color:var(--tx-2);margin-top:12px;}
.runway{
  height:1px;
  background:rgba(255,255,255,0.07);
  position:relative;
  margin:0 auto;
  max-width:var(--container);
}
.runway::after{
  content:"";
  position:absolute;
  left:50%;
  top:0;
  width:80px;
  height:1px;
  transform:translateX(-50%);
  background:var(--accent);
  opacity:.75;
}
/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:20px;
  left:0;
  right:0;
  z-index:80;
  padding:0 24px;
  transition:top .28s var(--ease);
}
.nav-shell{
  max-width:var(--container);
  margin:0 auto;
  height:64px;
  display:flex;
  align-items:center;
  gap:18px;
  padding:0 12px 0 20px;
  border-radius:999px;
  background:rgba(12,20,36,.72);
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow-soft);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:background .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-stuck .nav-shell{
  background:rgba(9,14,26,.94);
  border-color:var(--glass-line-strong);
  box-shadow:0 12px 38px rgba(3,8,20,.66);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--tx-1);
  font-weight:800;
  flex-shrink:0;
}
.brand:hover{color:var(--tx-1);}
.brand-mark{
  width:36px;
  height:36px;
  border-radius:12px;
  display:grid;
  place-items:center;
  background:linear-gradient(140deg,var(--brand),#1b3bb8);
  color:#fff;
  font-size:15px;
  font-weight:800;
  box-shadow:0 0 0 1px rgba(255,255,255,.12),0 8px 20px rgba(47,91,255,.35);
}
.brand-text{
  font-size:16px;
  letter-spacing:.01em;
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 16px;
  border-radius:999px;
  font-size:15px;
  color:var(--tx-2);
  white-space:nowrap;
  transition:color .22s var(--ease),background .22s var(--ease),transform .22s var(--ease);
}
.nav-link:hover{
  color:var(--tx-1);
  background:rgba(200,246,60,.10);
  transform:translateY(-1px);
}
.nav-link.is-active{
  color:var(--accent);
  font-weight:600;
}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  width:18px;
  height:2px;
  transform:translateX(-50%);
  background:var(--accent);
  border-radius:2px;
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:44px;
  padding:0 24px;
  border-radius:999px;
  background:var(--accent);
  color:#0A1020;
  font-size:15px;
  font-weight:700;
  flex-shrink:0;
  box-shadow:0 0 0 1px rgba(200,246,60,.35),0 8px 24px rgba(200,246,60,.22);
  transition:box-shadow .24s var(--ease),transform .24s var(--ease),filter .24s var(--ease);
}
.nav-cta:hover{
  color:#0A1020;
  filter:brightness(1.08);
  box-shadow:0 0 0 1px rgba(200,246,60,.45),0 12px 34px rgba(200,246,60,.34);
  transform:translateY(-1px);
}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:999px;
  border:1px solid var(--glass-line);
  background:rgba(255,255,255,.04);
  color:var(--tx-1);
  margin-left:auto;
  cursor:pointer;
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:50%;
  width:18px;
  height:2px;
  background:var(--tx-1);
  border-radius:2px;
  transform:translateX(-50%);
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.nav-toggle span{top:21px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{transform:translateX(-50%) translateY(6px) rotate(45deg);}
.nav-toggle.is-open span::after{transform:translateX(-50%) translateY(-6px) rotate(-45deg);}
/* ---------- 面包屑 ---------- */
.crumb-bar{
  padding:118px 0 0;
  position:relative;
  z-index:5;
}
.crumb{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  color:var(--tx-3);
  overflow-x:auto;
  white-space:nowrap;
  scrollbar-width:none;
}
.crumb::-webkit-scrollbar{display:none;}
.crumb a{color:var(--tx-2);}
.crumb a:hover{color:var(--accent);}
.crumb .sep{color:rgba(237,242,251,.24);}
.crumb .current{color:var(--accent);}
/* ---------- Hero ---------- */
.hero{
  padding:34px 0 96px;
  position:relative;
}
.hero-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--accent);
  padding:6px 14px;
  border-radius:999px;
  border:1px solid rgba(200,246,60,.28);
  background:rgba(200,246,60,.07);
  margin-bottom:20px;
}
.hero h1{margin-bottom:18px;}
.hero h1 em{
  font-style:normal;
  color:var(--accent);
}
.hero-sub{
  font-size:17px;
  line-height:1.85;
  color:var(--tx-2);
  max-width:560px;
  margin-bottom:30px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:38px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:52px;
  padding:0 30px;
  border-radius:999px;
  font-size:16px;
  font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  transition:all .24s var(--ease);
}
.btn-primary{
  background:var(--accent);
  color:#0A1020;
  box-shadow:0 0 0 1px rgba(200,246,60,.35),0 10px 30px rgba(200,246,60,.26);
}
.btn-primary:hover{
  color:#0A1020;
  filter:brightness(1.08);
  box-shadow:0 0 0 1px rgba(200,246,60,.45),0 14px 42px rgba(200,246,60,.4);
  transform:translateY(-2px);
}
.btn-primary:active{transform:translateY(1px);}
.btn-primary .arrow{transition:transform .24s var(--ease);}
.btn-primary:hover .arrow{transform:translateX(4px);}
.btn-ghost{
  background:transparent;
  color:var(--tx-1);
  border-color:rgba(255,255,255,.24);
}
.btn-ghost:hover{
  color:var(--tx-1);
  background:rgba(255,255,255,.06);
  border-color:var(--glass-line-strong);
  transform:translateY(-2px);
}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.07);
}
.hero-stat b{
  display:block;
  font-size:clamp(24px,2.6vw,32px);
  font-weight:800;
  color:var(--tx-1);
  font-variant-numeric:tabular-nums;
  letter-spacing:-0.01em;
}
.hero-stat b i{
  font-style:normal;
  font-size:14px;
  color:var(--accent);
  margin-left:4px;
  font-weight:600;
}
.hero-stat span{
  display:block;
  font-size:13px;
  color:var(--tx-3);
  margin-top:2px;
}
.hero-media{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow);
  aspect-ratio:4/3;
}
.hero-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(1.05);
}
.hero-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,12,22,.35),rgba(7,12,22,.86));
}
.hero-media .media-note{
  position:absolute;
  left:22px;
  right:22px;
  bottom:20px;
  z-index:2;
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--tx-2);
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  letter-spacing:.06em;
  padding:5px 12px;
  border-radius:999px;
  border:1px solid var(--glass-line);
  background:rgba(255,255,255,.05);
  color:var(--tx-2);
}
.badge-accent{
  border-color:rgba(200,246,60,.34);
  color:var(--accent);
  background:rgba(200,246,60,.08);
}
/* ---------- 双列对照 ---------- */
.dual-grid{
  display:grid;
  grid-template-columns:1fr 1px 1fr;
  gap:40px;
  align-items:start;
}
.dual-divider{
  align-self:stretch;
  background:linear-gradient(180deg,transparent,rgba(255,255,255,.14),transparent);
  width:1px;
}
.dual-col-head{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:15px;
  font-weight:700;
  color:var(--tx-1);
  margin-bottom:8px;
}
.dual-col-head .dot{
  width:9px;
  height:9px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 4px rgba(47,91,255,.18);
}
.dual-col:nth-child(3) .dual-col-head .dot{
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(200,246,60,.16);
}
.dual-col-desc{
  font-size:14px;
  color:var(--tx-3);
  margin-bottom:22px;
}
.mini-card{
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--radius);
  padding:20px 22px;
  margin-bottom:16px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.mini-card:hover{
  transform:translateY(-3px);
  border-color:var(--glass-line-strong);
  box-shadow:var(--shadow-soft);
}
.mini-card h3{
  font-size:17px;
  margin-bottom:8px;
  display:flex;
  align-items:center;
  gap:10px;
}
.mini-card h3 .idx{
  font-size:12px;
  font-weight:700;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.mini-card p{
  font-size:14.5px;
  line-height:1.7;
  color:var(--tx-2);
  margin:0;
}
.mini-card .bar{
  height:4px;
  border-radius:999px;
  background:rgba(255,255,255,.08);
  margin-top:14px;
  overflow:hidden;
}
.mini-card .bar i{
  display:block;
  height:100%;
  border-radius:999px;
  background:var(--accent);
}
.dual-col:nth-child(1) .mini-card .bar i{background:var(--brand);}
/* ---------- 方案包 ---------- */
.pack-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:22px;
}
.pack-card{
  grid-column:span 6;
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--radius);
  padding:26px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
  position:relative;
  overflow:hidden;
}
.pack-card:hover{
  transform:translateY(-3px);
  border-color:var(--glass-line-strong);
  box-shadow:var(--shadow);
}
.pack-card:hover::before{
  content:"";
  position:absolute;
  left:0;
  top:18px;
  bottom:18px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--accent);
}
.pack-card.is-feature{
  grid-column:span 12;
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:30px;
  align-items:center;
  padding:22px;
}
.pack-card.is-feature .pack-cover{
  border-radius:var(--radius-sm);
  overflow:hidden;
  aspect-ratio:16/9;
  position:relative;
  border:1px solid var(--glass-line);
}
.pack-card.is-feature .pack-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.pack-card.is-feature .pack-cover::after{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(7,12,22,.25);
}
.pack-no{
  font-size:12px;
  letter-spacing:.06em;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  display:block;
  margin-bottom:10px;
}
.pack-card h3{margin-bottom:10px;font-size:18px;}
.pack-card p{font-size:14.5px;line-height:1.7;color:var(--tx-2);margin:0 0 14px;}
.pack-list li{
  font-size:14px;
  color:var(--tx-2);
  padding-left:18px;
  position:relative;
  line-height:1.9;
}
.pack-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:12px;
  width:7px;
  height:7px;
  border-radius:2px;
  background:var(--brand);
  opacity:.8;
}
/* ---------- 交付流程 ---------- */
.flow-track{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
  border-top:1px solid rgba(255,255,255,.08);
  padding-top:0;
}
.flow-step{
  position:relative;
  padding:34px 26px 0 0;
  border-right:1px solid rgba(255,255,255,.07);
}
.flow-step:last-child{border-right:0;}
.flow-step::before{
  content:"";
  position:absolute;
  top:-5px;
  left:0;
  width:9px;
  height:9px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 5px rgba(200,246,60,.12);
}
.flow-step .step-no{
  display:block;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--tx-3);
  margin-bottom:8px;
  font-variant-numeric:tabular-nums;
}
.flow-step h3{font-size:17px;margin-bottom:8px;}
.flow-step p{font-size:14px;line-height:1.7;color:var(--tx-2);margin:0;}
/* ---------- FAQ ---------- */
.faq-layout{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:52px;
  align-items:start;
}
.faq-aside p{font-size:15px;color:var(--tx-2);}
.faq-aside .contact-line{
  margin-top:22px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:14px;
  color:var(--tx-3);
}
.faq-aside .contact-line a{color:var(--accent);}
.faq-item{
  border:1px solid var(--glass-line);
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.02);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.faq-item.is-open{
  border-color:rgba(200,246,60,.32);
  background:rgba(255,255,255,.05);
}
.faq-q{margin:0;}
.faq-q button{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:18px 22px;
  background:transparent;
  border:0;
  color:var(--tx-1);
  font-size:16px;
  font-weight:600;
  font-family:inherit;
  text-align:left;
  cursor:pointer;
  transition:color .22s var(--ease);
}
.faq-q button:hover{color:var(--accent);}
.faq-icon{
  position:relative;
  width:18px;
  height:18px;
  flex-shrink:0;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  background:var(--accent);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform .26s var(--ease),opacity .26s var(--ease);
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s var(--ease);
}
.faq-a-inner{
  padding:0 22px 20px 25px;
  border-left:3px solid var(--accent);
  margin-left:0;
}
.faq-a-inner p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--tx-2);
  margin:0;
}
/* ---------- 表单 ---------- */
.cta-wrap{padding:0 0 104px;}
.form-card{
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.025));
  border:1px solid var(--glass-line);
  border-radius:var(--radius-lg);
  padding:48px;
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  position:relative;
  overflow:hidden;
}
.form-card::before{
  content:"";
  position:absolute;
  top:-120px;
  right:-120px;
  width:320px;
  height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(200,246,60,.12),transparent 68%);
  pointer-events:none;
}
.form-head{max-width:620px;margin-bottom:34px;}
.form-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px 22px;
}
.field-full{grid-column:1 / -1;}
.field label{
  display:block;
  font-size:13px;
  color:var(--tx-2);
  margin-bottom:8px;
  letter-spacing:.02em;
}
.field input,
.field select,
.field textarea{
  width:100%;
  background:rgba(255,255,255,.04);
  border:1px solid var(--glass-line);
  border-radius:var(--radius-sm);
  color:var(--tx-1);
  font-family:inherit;
  font-size:15px;
  padding:0 16px;
  height:52px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
  appearance:none;
  -webkit-appearance:none;
}
.field textarea{
  height:120px;
  padding:14px 16px;
  resize:vertical;
  line-height:1.7;
}
.field select{
  background-image:linear-gradient(45deg,transparent 50%,var(--tx-2) 50%),linear-gradient(135deg,var(--tx-2) 50%,transparent 50%);
  background-position:calc(100% - 20px) 24px,calc(100% - 14px) 24px;
  background-size:6px 6px,6px 6px;
  background-repeat:no-repeat;
}
.field input::placeholder,
.field textarea::placeholder{color:var(--tx-3);}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  background:rgba(47,91,255,.06);
  box-shadow:0 0 0 3px rgba(200,246,60,.22);
}
.field select option{background:#0C1424;color:var(--tx-1);}
.form-foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  margin-top:26px;
}
.checkline{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13px;
  color:var(--tx-3);
  max-width:420px;
}
.checkline input{
  width:18px;
  height:18px;
  margin-top:3px;
  flex-shrink:0;
  accent-color:var(--accent);
  cursor:pointer;
}
.checkline a{color:var(--accent);}
/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  z-index:2;
  background:#050912;
  border-top:1px solid rgba(255,255,255,.08);
  padding:72px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:4fr 2.4fr 2.4fr 3fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:var(--tx-3);
  max-width:340px;
}
.footer-col h4{
  font-size:14px;
  color:var(--tx-1);
  margin-bottom:18px;
  letter-spacing:.02em;
}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{
  font-size:14px;
  color:var(--tx-3);
}
.footer-col ul li a:hover{color:var(--accent);}
.footer-col ul li .plain{
  font-size:14px;
  color:var(--tx-3);
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
  justify-content:space-between;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.07);
  font-size:13px;
  color:var(--tx-3);
}
.footer-bottom a{color:var(--tx-3);}
.footer-bottom a:hover{color:var(--accent);}
/* ---------- 响应式 ---------- */
@media (min-width:1440px){
  :root{--container:1320px;}
}
@media (max-width:1200px){
  .hero-grid{gap:36px;}
  .footer-grid{grid-template-columns:3fr 2fr 2fr 3fr;gap:30px;}
}
@media (max-width:992px){
  .section{padding:80px 0;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media{order:-1;aspect-ratio:16/9;}
  .dual-grid{grid-template-columns:1fr;gap:0;}
  .dual-divider{
    width:100%;
    height:1px;
    margin:34px 0;
    background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent);
  }
  .pack-card.is-feature{grid-template-columns:1fr;gap:20px;}
  .flow-track{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:30px;}
  .flow-step:nth-child(2){border-right:0;}
  .flow-step:nth-child(3){border-right:1px solid rgba(255,255,255,.07);}
  .faq-layout{grid-template-columns:1fr;gap:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:64px 0;}
  .site-header{top:14px;padding:0 14px;}
  .nav-shell{padding:0 10px 0 14px;height:60px;}
  .brand-text{font-size:15px;}
  .nav-toggle{display:block;}
  .nav-links{
    position:fixed;
    left:14px;
    right:14px;
    top:88px;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:18px;
    border-radius:22px;
    background:rgba(9,14,26,.98);
    border:1px solid var(--glass-line-strong);
    box-shadow:var(--shadow);
    backdrop-filter:none;
    -webkit-backdrop-filter:none;
    display:none;
    margin-left:0;
  }
  .nav-links.is-open{display:flex;}
  .nav-link{
    display:block;
    padding:14px 16px;
    font-size:17px;
    border-radius:14px;
  }
  .nav-link.is-active::after{display:none;}
  .nav-link.is-active{background:rgba(200,246,60,.10);}
  .nav-cta{display:none;}
  .hero{padding:26px 0 64px;}
  .hero-sub{font-size:16px;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
  .pack-grid{grid-template-columns:1fr;}
  .pack-card,
  .pack-card.is-feature{grid-column:span 1;}
  .flow-track{grid-template-columns:1fr;}
  .flow-step{border-right:0;padding:28px 0 0;}
  .form-card{padding:28px 22px;}
  .form-grid{grid-template-columns:1fr;}
  .form-foot{flex-direction:column;align-items:stretch;}
  .form-foot .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:560px){
  .container{padding:0 16px;}
  .hero-stats{grid-template-columns:1fr;}
  .crumb-bar{padding-top:104px;}
  .mini-card{padding:18px;}
  .pack-card{padding:20px;}
  .faq-q button{font-size:15px;padding:16px 18px;}
  .faq-a-inner{padding:0 18px 18px 20px;}
}
@media (max-width:420px){
  .brand-text{font-size:14px;}
  h3{font-size:17px;}
}