:root{
  --bg:#05070c;--bg-2:#080c14;--bg-3:#0b1018;
  --line:rgba(255,255,255,.08);--line-2:rgba(255,255,255,.15);
  --txt:#eef2f9;--txt-2:#a8b4c9;--txt-3:#75839d;
  --cyan:#3ee6cd;--blue:#4d8dff;--violet:#9d7bff;--gold:#f3ab42;
  --max:1180px;--r:16px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{background:var(--bg);color:var(--txt);font-size:16px;line-height:1.85;letter-spacing:.015em;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden;}
a{color:inherit;text-decoration:none;}
::selection{background:rgba(62,230,205,.24);color:#fff;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px;}
[id]{scroll-margin-top:92px;}
h1,h2,h3,.big{text-wrap:balance;}

.wrap{max-width:var(--max);margin:0 auto;padding:0 30px;}
.grid-bg{position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.024) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.024) 1px,transparent 1px);
  background-size:72px 72px;
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 76%);
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 76%);}
main,header,footer{position:relative;z-index:1;}

/* ---------- header ---------- */
header{position:sticky;top:0;z-index:60;background:rgba(5,7,12,.78);
  backdrop-filter:blur(18px) saturate(170%);-webkit-backdrop-filter:blur(18px) saturate(170%);
  border-bottom:1px solid var(--line);}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:20px;}
.logo{display:flex;align-items:center;gap:12px;}
.logo .mark{height:38px;width:auto;display:block;flex:none;
  filter:drop-shadow(0 2px 10px rgba(62,230,205,.25));
  transition:transform .3s ease,filter .3s ease;}
.logo:hover .mark{transform:translateY(-1px);filter:drop-shadow(0 4px 16px rgba(62,230,205,.5));}
.logo-txt{display:flex;flex-direction:column;width:78px;}
.logo-txt b,.logo-txt small{display:flex;justify-content:space-between;width:100%;}
.logo-txt b{font-size:18.5px;font-weight:700;line-height:1.24;letter-spacing:0;}
.logo-txt small{font-size:8.5px;line-height:1.5;color:var(--txt-3);margin-top:3px;
  font-weight:500;letter-spacing:0;}
.logo-txt i{font-style:normal;}
.nav ul{display:flex;gap:32px;list-style:none;font-size:15px;color:var(--txt-2);}
.nav ul a{position:relative;padding:6px 0;transition:color .2s;}
.nav ul a:hover{color:#fff;}
.nav ul a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1.5px;
  background:linear-gradient(90deg,var(--cyan),var(--blue));transition:width .28s ease;}
.nav ul a:hover::after{width:100%;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;
  border-radius:999px;font-size:14.5px;font-weight:600;border:1px solid var(--line-2);
  transition:transform .2s,border-color .2s,color .2s,box-shadow .2s;white-space:nowrap;}
.btn:hover{transform:translateY(-1px);border-color:var(--cyan);color:var(--cyan);}
.btn.solid{background:linear-gradient(135deg,var(--cyan),var(--blue));color:#04070c;border:0;
  box-shadow:0 10px 28px rgba(62,230,205,.2);}
.btn.solid:hover{filter:brightness(1.07);color:#04070c;box-shadow:0 14px 34px rgba(62,230,205,.28);}
.burger{display:none;font-size:20px;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);align-items:center;justify-content:center;cursor:pointer;
  color:var(--txt-2);user-select:none;}

/* ---------- hero ---------- */
.hero{padding:104px 0 96px;position:relative;overflow:hidden;}
.hero::before{content:"";position:absolute;top:-220px;left:50%;transform:translateX(-50%);
  width:1100px;height:640px;pointer-events:none;
  background:radial-gradient(ellipse at center,rgba(77,141,255,.17),rgba(157,123,255,.06) 45%,transparent 66%);
  filter:blur(36px);}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;letter-spacing:1.8px;
  color:var(--cyan);padding:8px 16px;border-radius:999px;
  border:1px solid rgba(62,230,205,.3);background:rgba(62,230,205,.06);}
.eyebrow i{width:5px;height:5px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 12px var(--cyan);animation:pulse 2.4s infinite;}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
h1{margin-top:30px;font-size:clamp(33px,4.9vw,58px);line-height:1.2;font-weight:800;
  letter-spacing:-.02em;max-width:17em;}
h1 .grad{background:linear-gradient(100deg,var(--cyan) 6%,var(--blue) 56%,var(--violet) 96%);
  -webkit-background-clip:text;background-clip:text;color:transparent;}
.lead{margin-top:28px;font-size:clamp(15.5px,1.3vw,17.5px);color:var(--txt-2);
  max-width:41em;line-height:2;}
.lead strong{color:var(--txt);font-weight:600;}
.lead br{content:"";}

.metrics{display:grid;grid-template-columns:repeat(4,1fr);margin-top:58px;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.metrics div{padding:28px 24px 26px;border-left:1px solid var(--line);}
.metrics div:first-child{border-left:0;padding-left:0;}
.metrics b{display:block;font-size:clamp(25px,2.9vw,35px);font-weight:800;letter-spacing:0;
  line-height:1.15;margin-bottom:9px;
  background:linear-gradient(180deg,#fff,#a3b4cd);-webkit-background-clip:text;
  background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;}
.metrics span{display:block;font-size:13px;color:var(--txt-3);letter-spacing:.3px;line-height:1.55;}

/* ---------- biz cards ---------- */
.split{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:70px;}
.biz{position:relative;border:1px solid var(--line);border-radius:var(--r);padding:34px 30px 30px;
  background:linear-gradient(165deg,rgba(255,255,255,.05),rgba(255,255,255,.014));
  transition:transform .3s cubic-bezier(.2,.7,.3,1),border-color .3s,box-shadow .3s;
  overflow:hidden;display:flex;flex-direction:column;}
.biz::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .3s;
  background:radial-gradient(600px 200px at 50% -10%,rgba(157,123,255,.16),transparent 70%);}
.biz:hover{transform:translateY(-6px);border-color:rgba(255,255,255,.2);
  box-shadow:0 28px 64px rgba(0,0,0,.55);}
.biz:hover::before{opacity:1;}
.biz::after{content:"";position:absolute;top:0;left:0;width:100%;height:2px;
  background:linear-gradient(90deg,transparent,var(--violet),transparent);opacity:.9;}
.biz.b2::after{background:linear-gradient(90deg,transparent,var(--cyan),transparent);}
.biz.b3::after{background:linear-gradient(90deg,transparent,var(--gold),transparent);}
.biz .num{font-size:12.5px;letter-spacing:2.4px;color:var(--txt-3);font-weight:700;}
.biz .en{font-size:10px;letter-spacing:2.4px;color:var(--txt-3);margin-top:7px;}
.biz h3{font-size:21px;font-weight:800;margin:18px 0 12px;letter-spacing:0;line-height:1.45;}
.biz p{font-size:14.5px;color:var(--txt-2);line-height:1.8;flex:1;}
.biz .kw{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}
.biz .kw span{font-size:11.5px;color:#cfd9e8;padding:5px 10px;border-radius:7px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);}
.biz .go{margin-top:22px;font-size:13.5px;font-weight:700;color:#b39bff;letter-spacing:.2px;
  display:inline-flex;align-items:center;gap:6px;}
.biz.b2 .go{color:var(--cyan);}
.biz.b3 .go{color:var(--gold);}

/* ---------- sections ---------- */
section{padding:112px 0;}
.sec-head{max-width:46em;}
.sec-head .k{display:inline-flex;align-items:center;gap:12px;font-size:12px;letter-spacing:3.2px;
  color:var(--cyan);font-weight:700;}
.sec-head .k::before{content:"";width:28px;height:1px;
  background:linear-gradient(90deg,var(--cyan),transparent);}
.sec-head h2{font-size:clamp(27px,3.5vw,42px);font-weight:800;margin-top:20px;
  letter-spacing:-.015em;line-height:1.32;}
.sec-head p{color:var(--txt-2);margin-top:22px;font-size:16px;line-height:1.95;}
.alt-bg{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

.partners{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:46px;
  padding:24px 28px;border:1px solid var(--line);border-radius:var(--r);
  background:rgba(255,255,255,.022);}
.partners .lb{font-size:12.5px;color:var(--txt-3);letter-spacing:1.4px;margin-right:6px;}
.partners span.chip{font-size:14px;font-weight:600;color:#dce6f5;padding:8px 17px;
  border-radius:9px;border:1px solid var(--line-2);background:rgba(255,255,255,.04);
  transition:border-color .25s,color .25s;}
.partners span.chip:hover{border-color:rgba(62,230,205,.5);color:var(--cyan);}

/* ---------- grids ---------- */
.res,.tech-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;margin-top:46px;}
.tech-grid{grid-template-columns:repeat(3,1fr);}
.res-cell,.tech-cell{background:var(--bg-2);padding:34px 30px;transition:background .25s;}
.tech-cell{background:var(--bg);}
.res-cell:hover,.tech-cell:hover{background:rgba(255,255,255,.035);}
.res-cell .top{display:flex;align-items:baseline;justify-content:space-between;gap:14px;flex-wrap:wrap;}
.res-cell h4,.tech-cell h4{font-size:17px;font-weight:700;letter-spacing:0;}
.res-cell .cnt{font-size:12.5px;color:var(--gold);font-weight:700;letter-spacing:.2px;}
.res-cell p,.tech-cell p{font-size:14px;color:var(--txt-2);margin-top:12px;line-height:1.82;}
.res-cell .meta{margin-top:18px;padding-top:15px;border-top:1px solid rgba(255,255,255,.07);
  font-size:12.5px;color:var(--txt-3);display:flex;gap:18px;flex-wrap:wrap;}
.tech-cell .ic{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:rgba(62,230,205,.08);border:1px solid rgba(62,230,205,.22);color:var(--cyan);
  font-size:13px;font-weight:800;margin-bottom:18px;letter-spacing:.5px;}
.tech-cell .who{font-size:12px;color:var(--txt-3);margin-top:14px;letter-spacing:.3px;}

/* ---------- highlight ---------- */
.hl{display:grid;grid-template-columns:1.15fr 1fr;gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin-top:46px;}
.hl>div{background:var(--bg-2);padding:42px 38px;}
.hl .big{font-size:clamp(22px,2.5vw,31px);font-weight:800;letter-spacing:-.01em;line-height:1.55;}
.hl .big em{font-style:normal;
  background:linear-gradient(100deg,var(--cyan),var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;}
.hl p{color:var(--txt-2);font-size:14.8px;margin-top:18px;line-height:1.88;}
.hl ul{list-style:none;margin-top:20px;}
.hl li{font-size:14.2px;color:var(--txt-2);padding:13px 0;border-top:1px solid rgba(255,255,255,.07);
  display:flex;gap:14px;line-height:1.7;}
.hl li b{color:var(--cyan);font-weight:700;flex-shrink:0;width:24px;letter-spacing:.5px;}

/* ---------- case ---------- */
.case{display:grid;grid-template-columns:1.05fr 1fr;border:1px solid var(--line);
  border-radius:var(--r);overflow:hidden;margin-top:46px;
  background:linear-gradient(150deg,rgba(255,255,255,.05),rgba(255,255,255,.012));}
.case .ph{min-height:360px;display:grid;place-items:center;text-align:center;padding:28px;
  font-size:13px;color:var(--txt-3);line-height:1.9;
  background:radial-gradient(circle at 32% 22%,rgba(77,141,255,.17),transparent 62%),
    linear-gradient(140deg,#0c121c,#090e16);border-right:1px solid var(--line);}
.case .bd{padding:44px 38px;}
.case .tag{font-size:12px;letter-spacing:2.4px;color:var(--gold);font-weight:700;}
.case h3{font-size:24px;font-weight:800;margin:15px 0 16px;letter-spacing:-.01em;line-height:1.4;}
.case p{font-size:14.6px;color:var(--txt-2);line-height:1.88;}
.module-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:24px;}
.module-row span{font-size:12.5px;color:#e4d5bb;padding:8px 14px;border-radius:8px;
  background:rgba(243,171,66,.07);border:1px solid rgba(243,171,66,.26);}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:28px;padding-top:24px;
  border-top:1px solid var(--line);}
.facts b{display:block;font-size:20px;font-weight:800;color:var(--cyan);letter-spacing:0;
  font-variant-numeric:tabular-nums;
  line-height:1.3;}
.facts span{font-size:12.5px;color:var(--txt-3);}

/* ---------- wall ---------- */
.wall-title{font-size:12.5px;color:var(--txt-3);letter-spacing:2.4px;margin-top:64px;font-weight:600;}
.wall{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin-top:18px;}
.wall div{background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.008));
  min-height:104px;display:grid;place-items:center;text-align:center;padding:18px 16px;
  font-size:13.8px;color:var(--txt-3);line-height:1.6;transition:background .25s,color .25s;}
.wall div.filled{color:#e6edf8;font-weight:600;letter-spacing:.2px;}
.wall div.filled:hover{background:rgba(62,230,205,.05);color:#fff;}
.wall.five{grid-template-columns:repeat(5,1fr);}
.wall.four{grid-template-columns:repeat(4,1fr);}

/* ---------- brand rows ---------- */
.brands{margin-top:18px;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--bg);}
.brands .brow{display:grid;grid-template-columns:130px 1fr;border-top:1px solid var(--line);}
.brands .brow:first-child{border-top:0;}
.brands .bl{font-size:12.5px;color:var(--txt-3);letter-spacing:1.4px;padding:20px;
  background:rgba(255,255,255,.02);border-right:1px solid var(--line);display:flex;align-items:center;}
.brands .bc{display:flex;flex-wrap:wrap;gap:10px;padding:18px 20px;}
.brands .bc span{font-size:13.8px;color:#dde6f4;font-weight:600;padding:7px 14px;border-radius:8px;
  border:1px solid var(--line);background:rgba(255,255,255,.035);
  transition:border-color .25s,color .25s,transform .2s;}
.brands .bc span:hover{border-color:rgba(62,230,205,.45);color:#fff;transform:translateY(-1px);}

/* ---------- about ---------- */
.two{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:54px;}
.co{border:1px solid var(--line);border-radius:var(--r);padding:34px 30px;
  background:rgba(255,255,255,.022);transition:border-color .3s,background .3s;}
.co:hover{border-color:var(--line-2);background:rgba(255,255,255,.035);}
.co .role{font-size:11.5px;letter-spacing:2.6px;color:var(--txt-3);font-weight:700;}
.co h3{font-size:19px;font-weight:800;margin:13px 0 9px;letter-spacing:0;line-height:1.45;}
.co .since{font-size:12.5px;color:var(--cyan);margin-bottom:14px;}
.co p{font-size:14.2px;color:var(--txt-2);line-height:1.85;}
.co ul{margin-top:18px;padding:0;list-style:none;font-size:13.6px;color:var(--txt-2);}
.co li{padding:9px 0;border-top:1px solid rgba(255,255,255,.06);
  display:flex;justify-content:space-between;gap:16px;}
.co li i{color:var(--txt-3);font-style:normal;flex-shrink:0;text-align:right;}

/* ---------- contact ---------- */
.contact{text-align:center;}
.contact .k{display:block;font-size:12px;letter-spacing:3.4px;color:var(--cyan);font-weight:700;}
.contact h2{font-size:clamp(27px,3.5vw,42px);font-weight:800;letter-spacing:-.015em;margin-top:16px;line-height:1.32;}
.contact p{color:var(--txt-2);margin-top:18px;font-size:16px;}
.cbox{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:40px;}
.cbox a,.cbox div{padding:16px 34px;border-radius:12px;font-size:15px;font-weight:600;
  border:1px solid var(--line);background:rgba(255,255,255,.03);transition:.25s;}
.cbox a:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px);}
.cbox .primary{background:linear-gradient(135deg,var(--cyan),var(--blue));color:#04070c;border:0;
  box-shadow:0 12px 30px rgba(62,230,205,.18);}
.cbox .primary:hover{filter:brightness(1.06);color:#04070c;transform:translateY(-2px);}
.qr{width:152px;height:152px;margin:42px auto 0;border-radius:14px;
  border:1px solid rgba(255,255,255,.12);overflow:hidden;background:#fff;padding:7px;
  box-shadow:0 18px 44px rgba(0,0,0,.45);}
.qr img{width:100%;height:100%;object-fit:contain;display:block;border-radius:8px;}

/* ---------- footer ---------- */
footer{background:#03050a;border-top:1px solid var(--line);padding:58px 0 34px;
  font-size:13px;color:var(--txt-3);line-height:1.9;}
footer .cols{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:40px;padding-bottom:34px;
  border-bottom:1px solid rgba(255,255,255,.07);}
footer h5{color:var(--txt);font-size:14px;margin-bottom:16px;font-weight:700;letter-spacing:.4px;}
footer a{transition:color .2s;}
footer a:hover{color:var(--cyan);}
footer .ff{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:26px;line-height:2;}
footer .ff a{text-decoration:underline;text-underline-offset:3px;
  text-decoration-color:rgba(255,255,255,.25);}
.todo{color:#ffb4a8;background:rgba(255,90,60,.14);padding:1px 6px;border-radius:5px;font-size:12.5px;}

/* ---------- motion ---------- */
@keyframes up{from{opacity:0;transform:translateY(16px);}to{opacity:1;transform:none;}}
.hero .eyebrow{animation:up .7s cubic-bezier(.2,.7,.3,1) both;}
.hero h1{animation:up .7s .08s cubic-bezier(.2,.7,.3,1) both;}
.hero .lead{animation:up .7s .16s cubic-bezier(.2,.7,.3,1) both;}
.hero .metrics{animation:up .7s .26s cubic-bezier(.2,.7,.3,1) both;}
.hero .split{animation:up .7s .36s cubic-bezier(.2,.7,.3,1) both;}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .tech-grid{grid-template-columns:repeat(2,1fr);}
  .metrics b{font-size:26px;}
}
@media (max-width:900px){
  .wrap{padding:0 22px;}
  .nav{height:66px;}
  .nav ul{display:none;position:absolute;top:66px;left:0;right:0;
    flex-direction:column;gap:0;padding:8px 22px 18px;
    background:rgba(6,9,15,.98);border-bottom:1px solid var(--line);}
  .nav ul.open{display:flex;}
  .nav ul li{border-top:1px solid rgba(255,255,255,.06);}
  .nav ul a{display:block;padding:14px 0;font-size:15.5px;}
  .burger{display:flex;}
  .split,.two,.case,.hl,.res,.tech-grid{grid-template-columns:1fr;}
  .case .ph{border-right:0;border-bottom:1px solid var(--line);min-height:220px;}
  .metrics{grid-template-columns:1fr 1fr;}
  .metrics div{padding:24px 20px;}
  .metrics div:first-child{padding-left:20px;}
  .metrics div:nth-child(odd){border-left:0;}
  .metrics div:nth-child(3),.metrics div:nth-child(4){border-top:1px solid var(--line);}
  .wall,.wall.five,.wall.four{grid-template-columns:repeat(2,1fr);}
  .brands .brow{grid-template-columns:1fr;}
  .brands .bl{border-right:0;border-bottom:1px solid var(--line);}
  .hero{padding:64px 0 58px;}
  section{padding:72px 0;}
  h1{letter-spacing:-.02em;}
  .hl>div,.case .bd,.sec-head{padding:0;}
  .hl>div,.case .bd{padding:32px 26px;}
  footer .cols{grid-template-columns:1fr;gap:26px;}
}
@media (max-width:520px){
  .wrap{padding:0 18px;}
  h1{font-size:30px;line-height:1.3;}
  .lead{font-size:15px;line-height:1.9;}
  .metrics b{font-size:23px;}
  .facts{gap:12px;}
  .facts b{font-size:17px;}
  .cbox a,.cbox div{width:100%;padding:15px 20px;}
  .res-cell,.tech-cell{padding:26px 22px;}
  .biz{padding:28px 22px 26px;}
}

/* ============ 内页专属 ============ */
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--txt-3);margin-bottom:28px;}
.crumb a{transition:color .2s;}
.crumb a:hover{color:var(--cyan);}
.crumb span{opacity:.45;}
.page-hero{padding:78px 0 86px;position:relative;overflow:hidden;}
.page-hero::before{content:"";position:absolute;top:-260px;left:50%;transform:translateX(-50%);
  width:1000px;height:620px;pointer-events:none;
  background:radial-gradient(ellipse at center,rgba(77,141,255,.15),rgba(157,123,255,.05) 45%,transparent 66%);
  filter:blur(38px);}
.page-hero h1{font-size:clamp(30px,3.9vw,47px);line-height:1.26;max-width:21em;margin-top:0;letter-spacing:-.02em;}
.page-hero .lead{font-size:16.5px;max-width:44em;margin-top:26px;line-height:2;}
.nav ul a.on{color:#fff;}
.nav ul a.on::after{width:100%;}

.gal{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:46px;}
.gal figure{position:relative;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#090e16;}
.gal img{width:100%;display:block;object-fit:cover;aspect-ratio:3/2;transition:transform .6s cubic-bezier(.2,.7,.3,1);}
.gal figure:hover img{transform:scale(1.035);}
.gal figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 18px 14px;font-size:13px;
  color:#dde6f4;line-height:1.5;background:linear-gradient(transparent,rgba(4,6,11,.9));}
.gal .wide{grid-column:1/-1;}
.gal .wide img{aspect-ratio:21/9;}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin-top:46px;}
.steps>div{background:var(--bg-2);padding:32px 28px;transition:background .25s;}
.steps>div:hover{background:rgba(255,255,255,.035);}
.steps b{display:block;font-size:11.5px;letter-spacing:2.2px;color:var(--cyan);margin-bottom:14px;font-weight:700;}
.steps h4{font-size:16.5px;font-weight:700;margin-bottom:10px;letter-spacing:0;}
.steps p{font-size:13.8px;color:var(--txt-2);line-height:1.8;}

.case-big{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin-top:46px;
  background:linear-gradient(160deg,rgba(255,255,255,.045),rgba(255,255,255,.01));}
.case-big img{width:100%;display:block;aspect-ratio:16/9;object-fit:cover;border-bottom:1px solid var(--line);}
.case-big .bd{padding:40px 36px;}
.case-big h3{font-size:24px;font-weight:800;letter-spacing:-.01em;margin:14px 0 16px;line-height:1.4;}
.case-big p{font-size:14.8px;color:var(--txt-2);line-height:1.9;}

.band{padding:78px 0;background:var(--bg-2);border-top:1px solid var(--line);text-align:center;}
.band h2{font-size:clamp(24px,3vw,34px);font-weight:800;letter-spacing:-.01em;line-height:1.35;}
.band p{color:var(--txt-2);margin-top:16px;font-size:15.5px;}
.band .cbox{margin-top:32px;}

.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.chips span{font-size:12.5px;color:#e4d5bb;padding:8px 14px;border-radius:8px;
  background:rgba(243,171,66,.07);border:1px solid rgba(243,171,66,.26);}

@media (max-width:900px){
  .gal,.steps{grid-template-columns:1fr;gap:16px;}
  .page-hero{padding:52px 0 56px;}
  .case-big .bd{padding:30px 24px;}
  .gal .wide img{aspect-ratio:3/2;}
}

/* 案例小标题 */
.sub-head{max-width:46em;}
.sub-head .sn{display:inline-flex;align-items:center;font-size:11.5px;letter-spacing:2.6px;
  font-weight:700;color:#f3ab42;padding:5px 11px;border-radius:6px;
  background:rgba(243,171,66,.07);border:1px solid rgba(243,171,66,.28);}
.sub-head h3{font-size:clamp(21px,2.4vw,29px);font-weight:800;margin-top:16px;
  letter-spacing:-.01em;line-height:1.38;}
.sub-head p{color:var(--txt-2);margin-top:14px;font-size:15px;line-height:1.88;}

/* 三列图集：方形图 + 图下注释（不做叠字） */
.gal.three{grid-template-columns:repeat(3,1fr);}
.gal.three img{aspect-ratio:1/1;}
.gal.three figcaption{position:static;background:none;padding:14px 16px 16px;
  border-top:1px solid var(--line);color:var(--txt-2);font-size:12.8px;line-height:1.68;}

@media (max-width:900px){
  .gal.three{grid-template-columns:1fr;}
}

/* 院校案例明细列表 */
.schools{margin-top:46px;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--bg);}
.schools .srow{display:grid;grid-template-columns:320px 1fr;border-top:1px solid var(--line);transition:background .2s;}
.schools .srow:first-child{border-top:0;}
.schools .srow:hover{background:rgba(62,230,205,.04);}
.schools .sn{padding:20px 24px;font-size:14.8px;font-weight:700;color:#e6edf8;
  letter-spacing:.2px;border-right:1px solid var(--line);display:flex;flex-direction:column;
  justify-content:center;gap:7px;}
.schools .sn i{font-style:normal;font-size:10.5px;color:var(--cyan);letter-spacing:2px;font-weight:700;}
.schools .sd{padding:20px 24px;font-size:13.8px;color:var(--txt-2);line-height:1.8;display:flex;align-items:center;}

@media (max-width:900px){
  .schools .srow{grid-template-columns:1fr;}
  .schools .sn{border-right:0;border-bottom:1px solid var(--line);padding-bottom:16px;}
  .schools .sd{padding-top:14px;}
}

/* 图集：注释在图下（不压字） */
.gal.cap figcaption{position:static;background:none;padding:15px 17px 17px;
  border-top:1px solid var(--line);color:var(--txt-2);font-size:12.8px;line-height:1.7;}