/* ===========================================================
   云启智能 官网 · 视觉底层
   风格：科技蓝极简 + 玻璃质感
   =========================================================== */

:root{
  --brand:#185FA5;
  --brand-2:#378ADD;
  --brand-soft:#E6F1FB;
  --ink:#0F2040;
  --ink-2:#1B3A63;
  --muted:#5A6B85;
  --muted-2:#8496AC;
  --bg:#F6F9FD;
  --white:#FFFFFF;
  --line:rgba(24,95,165,.12);
  --glass:rgba(255,255,255,.58);
  --glass-strong:rgba(255,255,255,.78);
  --glass-brd:rgba(255,255,255,.75);
  --shadow-s:0 4px 16px rgba(15,32,64,.05);
  --shadow-m:0 10px 34px rgba(15,32,64,.08);
  --shadow-l:0 22px 60px rgba(15,32,64,.12);
  --r-s:10px; --r-m:16px; --r-l:22px; --r-xl:30px;
  --nav-h:72px;
  --font:"Inter","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
input,select,textarea{font-family:inherit;font-size:15px;}
::selection{background:var(--brand);color:#fff;}

.wrap{width:min(1200px,92vw);margin:0 auto;}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);}

/* ---------- 背景光斑 ---------- */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(760px 520px at 12% -6%, rgba(55,138,221,.16), transparent 62%),
    radial-gradient(680px 480px at 92% 4%, rgba(126,119,221,.13), transparent 60%),
    radial-gradient(900px 700px at 50% 108%, rgba(29,158,117,.08), transparent 66%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:linear-gradient(rgba(24,95,165,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(24,95,165,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(1200px 620px at 50% 0%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(1200px 620px at 50% 0%,#000 0%,transparent 78%);
}

/* ================= 导航 ================= */
.nav{
  position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:100;
  display:flex;align-items:center;
  transition:height .35s var(--ease),background .35s var(--ease),box-shadow .35s var(--ease),backdrop-filter .35s;
}
.nav.is-solid{
  height:62px;
  background:var(--glass-strong);
  backdrop-filter:blur(20px) saturate(180%);
  -webkit-backdrop-filter:blur(20px) saturate(180%);
  box-shadow:0 6px 26px rgba(15,32,64,.07);
  border-bottom:1px solid var(--glass-brd);
}
.nav-in{width:min(1200px,92vw);margin:0 auto;display:flex;align-items:center;gap:28px;}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:#fff;display:grid;place-items:center;overflow:hidden;
  box-shadow:0 4px 12px rgba(15,32,64,.14);
}
.logo-mark img{width:100%;height:100%;object-fit:contain;display:block;}
.logo-txt{font-size:17px;font-weight:600;letter-spacing:-.2px;color:var(--ink);}
.logo-txt small{display:block;font-size:10.5px;letter-spacing:2.4px;color:var(--muted-2);font-weight:500;text-transform:uppercase;line-height:1.2;}

.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
  position:relative;padding:8px 14px;border-radius:9px;font-size:14.5px;color:var(--ink-2);
  transition:color .25s,background .25s;
}
.nav-links a:hover{color:var(--brand);background:rgba(255,255,255,.6);}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand);
}
.nav-tools{display:flex;align-items:center;gap:10px;margin-left:14px;}
.lang-btn{
  display:flex;align-items:center;gap:2px;padding:5px;border-radius:9px;
  background:var(--glass);border:1px solid var(--glass-brd);backdrop-filter:blur(10px);
  font-size:12.5px;font-weight:600;
}
.lang-btn span{padding:3px 9px;border-radius:6px;color:var(--muted);transition:.25s;}
.lang-btn span.on{background:var(--brand);color:#fff;}
.btn{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  padding:11px 22px;border-radius:11px;font-size:14.5px;font-weight:600;
  background:var(--brand);color:#fff;
  box-shadow:0 8px 22px rgba(24,95,165,.28);
  transition:transform .25s var(--ease),box-shadow .25s,background .25s;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(24,95,165,.34);background:var(--brand-2);}
.btn.ghost{
  background:var(--glass);color:var(--brand);border:1px solid rgba(24,95,165,.28);
  backdrop-filter:blur(12px);box-shadow:var(--shadow-s);
}
.btn.ghost:hover{background:var(--white);}
.btn.lg{padding:14px 30px;font-size:15.5px;border-radius:13px;}
.btn .ar{transition:transform .25s;}
.btn:hover .ar{transform:translateX(3px);}

.burger{display:none;width:40px;height:40px;border-radius:10px;background:var(--glass);border:1px solid var(--glass-brd);backdrop-filter:blur(10px);place-items:center;}
.burger i{display:block;width:17px;height:1.6px;background:var(--ink);border-radius:2px;margin:3px auto;transition:.3s;}
.burger.on i:nth-child(1){transform:translateY(4.6px) rotate(45deg);}
.burger.on i:nth-child(2){opacity:0;}
.burger.on i:nth-child(3){transform:translateY(-4.6px) rotate(-45deg);}

.mobile-menu{
  position:fixed;top:var(--nav-h);left:0;right:0;z-index:99;
  background:var(--glass-strong);backdrop-filter:blur(22px) saturate(180%);
  border-bottom:1px solid var(--glass-brd);
  padding:14px 0 20px;display:none;
}
.mobile-menu.on{display:block;animation:drop .3s var(--ease);}
@keyframes drop{from{opacity:0;transform:translateY(-10px);}to{opacity:1;transform:none;}}
.mobile-menu a{display:block;padding:12px 6vw;font-size:16px;color:var(--ink-2);border-top:1px solid rgba(24,95,165,.07);}
.mobile-menu a.active{color:var(--brand);font-weight:600;}

/* ================= 通用区块 ================= */
.page{padding-top:var(--nav-h);}
section{padding:96px 0;position:relative;}
.sec-head{max-width:720px;margin-bottom:52px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:100px;margin-bottom:18px;
  background:var(--glass);border:1px solid var(--glass-brd);backdrop-filter:blur(10px);
  font-size:12.5px;font-weight:600;color:var(--brand);letter-spacing:.4px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--brand-2);display:block;box-shadow:0 0 0 4px rgba(55,138,221,.18);}
h1{font-size:clamp(34px,4.6vw,58px);line-height:1.16;letter-spacing:-1.4px;font-weight:700;}
h2{font-size:clamp(27px,3.1vw,40px);line-height:1.24;letter-spacing:-.9px;font-weight:700;}
h3{font-size:19px;line-height:1.4;font-weight:650;letter-spacing:-.3px;}
.lead{font-size:17.5px;color:var(--muted);line-height:1.8;margin-top:18px;}
.grad{background:linear-gradient(100deg,var(--brand) 10%,#7F77DD 55%,var(--brand-2) 95%);-webkit-background-clip:text;background-clip:text;color:transparent;}

/* 玻璃卡 */
.glass{
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(170%);
  -webkit-backdrop-filter:blur(18px) saturate(170%);
  border:1px solid var(--glass-brd);
  border-radius:var(--r-l);
  box-shadow:var(--shadow-m);
}
.glass-s{
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(160%);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  border:1px solid var(--glass-brd);
  border-radius:var(--r-m);
  box-shadow:var(--shadow-s);
}

/* ================= HERO ================= */
.hero{padding:132px 0 84px;position:relative;overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;}
.hero h1{margin-bottom:6px;}
.hero-typed{
  display:inline-block;margin-top:10px;font-size:clamp(20px,2.2vw,28px);font-weight:600;color:var(--brand);
  letter-spacing:-.5px;
}
.hero-typed::after{content:"";display:inline-block;width:2px;height:1.05em;background:var(--brand);vertical-align:-.16em;margin-left:3px;animation:blink 1.1s steps(2) infinite;}
@keyframes blink{50%{opacity:0;}}
.hero-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap;}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:46px;}
.hero-stats .glass-s{padding:16px 18px;}
.hero-stats b{display:block;font-size:26px;font-weight:700;letter-spacing:-.6px;color:var(--ink);}
.hero-stats span{font-size:12.5px;color:var(--muted);}
.hero-stats .unit{font-size:15px;font-weight:600;color:var(--brand);}

/* Hero 视觉：玻璃浮层 + 光晕 */
.hero-visual{position:relative;height:480px;}
.orb{position:absolute;border-radius:50%;filter:blur(38px);opacity:.55;}
.orb.a{width:280px;height:280px;background:#378ADD;top:6%;left:4%;animation:float 9s ease-in-out infinite;}
.orb.b{width:230px;height:230px;background:#7F77DD;bottom:8%;right:2%;animation:float 11s ease-in-out infinite reverse;}
.orb.c{width:170px;height:170px;background:#1D9E75;top:38%;left:44%;animation:float 13s ease-in-out infinite;}
@keyframes float{0%,100%{transform:translate(0,0) scale(1);}50%{transform:translate(18px,-22px) scale(1.06);}}
.glow-cursor{position:absolute;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(55,138,221,.28),transparent 68%);pointer-events:none;transform:translate(-50%,-50%);transition:left .35s var(--ease),top .35s var(--ease);z-index:0;}

.hero-card{position:relative;z-index:2;padding:22px;}
.hero-card.main{position:absolute;top:24px;left:0;right:8%;padding:24px;}
.hero-card .hc-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.hero-card .hc-top b{font-size:14px;}
.pill{padding:4px 11px;border-radius:100px;font-size:11.5px;font-weight:600;background:var(--brand-soft);color:var(--brand);}
.pill.g{background:#E1F5EE;color:#0F6E56;}
.pill.p{background:#EEEDFE;color:#534AB7;}
.mini-row{display:flex;align-items:center;gap:12px;padding:11px 0;border-top:1px solid rgba(24,95,165,.09);}
.mini-row:first-of-type{border-top:none;}
.mini-row .dot{width:30px;height:30px;border-radius:9px;flex-shrink:0;display:grid;place-items:center;font-size:13px;font-weight:700;color:#fff;}
.mini-row .t{font-size:13.5px;font-weight:600;}
.mini-row .s{font-size:12px;color:var(--muted);}
.bar{height:6px;border-radius:4px;background:rgba(24,95,165,.12);overflow:hidden;margin-top:7px;}
.bar i{display:block;height:100%;border-radius:4px;background:linear-gradient(90deg,var(--brand),var(--brand-2));width:0;transition:width 1.4s var(--ease);}
.float-chip{
  position:absolute;z-index:3;padding:12px 16px;border-radius:14px;
  background:var(--glass-strong);backdrop-filter:blur(16px);border:1px solid var(--glass-brd);
  box-shadow:var(--shadow-m);font-size:12.5px;
}
.float-chip b{display:block;font-size:17px;font-weight:700;color:var(--brand);letter-spacing:-.4px;}
.float-chip.c1{top:44%;right:-4%;animation:float 8s ease-in-out infinite;}
.float-chip.c2{bottom:6%;left:-6%;animation:float 10s ease-in-out infinite reverse;}

/* ================= 业务矩阵 ================= */
.biz-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(268px,1fr));gap:20px;}
.biz-card{
  position:relative;padding:28px 26px 26px;border-radius:var(--r-l);overflow:hidden;
  background:var(--glass);backdrop-filter:blur(16px) saturate(160%);-webkit-backdrop-filter:blur(16px) saturate(160%);
  border:1px solid var(--glass-brd);box-shadow:var(--shadow-s);
  transition:transform .4s var(--ease),box-shadow .4s,border-color .4s;
}
.biz-card::before{
  content:"";position:absolute;top:-40%;right:-30%;width:200px;height:200px;border-radius:50%;
  background:var(--bc,rgba(55,138,221,.18));filter:blur(34px);opacity:0;transition:opacity .45s;
}
.biz-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-l);border-color:rgba(255,255,255,.95);}
.biz-card:hover::before{opacity:1;}
.biz-ico{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;margin-bottom:18px;
  background:var(--brand-soft);color:var(--brand);position:relative;z-index:1;
}
.biz-ico svg{width:23px;height:23px;}
.biz-card h3{position:relative;z-index:1;margin-bottom:8px;}
.biz-card p{font-size:14.5px;color:var(--muted);line-height:1.72;position:relative;z-index:1;}
.biz-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px;position:relative;z-index:1;}
.biz-tags span{font-size:12px;padding:4px 10px;border-radius:7px;background:rgba(255,255,255,.72);color:var(--ink-2);border:1px solid rgba(24,95,165,.1);}
.biz-more{
  display:inline-flex;align-items:center;gap:6px;margin-top:20px;font-size:13.5px;font-weight:600;color:var(--brand);position:relative;z-index:1;
}
.biz-more i{transition:transform .3s;}
.biz-card:hover .biz-more i{transform:translateX(4px);}

/* ================= 案例 ================= */
.filters{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:14px;}
.chip{
  padding:8px 16px;border-radius:100px;font-size:13.5px;font-weight:500;color:var(--ink-2);
  background:var(--glass);border:1px solid var(--glass-brd);backdrop-filter:blur(10px);
  transition:.25s var(--ease);
}
.chip:hover{border-color:rgba(24,95,165,.35);color:var(--brand);}
.chip.on{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:0 6px 18px rgba(24,95,165,.26);}
.search{
  position:relative;margin-left:auto;width:260px;
}
.search input{
  width:100%;padding:10px 14px 10px 38px;border-radius:100px;
  background:var(--glass-strong);border:1px solid var(--glass-brd);backdrop-filter:blur(10px);
  color:var(--ink);outline:none;transition:.25s;
}
.search input:focus{border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(55,138,221,.14);}
.search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--muted-2);}

.case-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:22px;margin-top:24px;}
.case-card{
  border-radius:var(--r-l);overflow:hidden;background:var(--glass);
  backdrop-filter:blur(16px) saturate(160%);-webkit-backdrop-filter:blur(16px) saturate(160%);
  border:1px solid var(--glass-brd);box-shadow:var(--shadow-s);
  transition:transform .4s var(--ease),box-shadow .4s;
  display:flex;flex-direction:column;
}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-l);}
.case-thumb{height:172px;position:relative;overflow:hidden;display:grid;place-items:center;}
.case-thumb .bg{position:absolute;inset:0;opacity:.9;}
.case-thumb .mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,32,64,.05),rgba(15,32,64,.45));}
.case-thumb .glyph{position:relative;font-size:38px;font-weight:700;color:rgba(255,255,255,.92);letter-spacing:-1px;}
.case-thumb .tag{position:absolute;top:12px;right:12px;padding:4px 11px;border-radius:8px;font-size:11.5px;font-weight:600;background:rgba(255,255,255,.86);color:var(--ink);backdrop-filter:blur(6px);}
.case-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.case-body h3{font-size:17px;margin-bottom:8px;}
.case-body p{font-size:13.8px;color:var(--muted);line-height:1.68;}
.case-metrics{display:flex;gap:18px;margin-top:16px;padding-top:15px;border-top:1px solid rgba(24,95,165,.1);}
.case-metrics div b{display:block;font-size:18px;font-weight:700;color:var(--brand);letter-spacing:-.4px;}
.case-metrics div span{font-size:11.5px;color:var(--muted);}
.case-empty{grid-column:1/-1;padding:56px 0;text-align:center;color:var(--muted);}

/* ================= 视频墙 ================= */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(268px,1fr));gap:18px;}
.v-card{
  position:relative;border-radius:var(--r-m);overflow:hidden;cursor:pointer;
  aspect-ratio:16/10;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.22);
  box-shadow:var(--shadow-s);transition:transform .4s var(--ease),box-shadow .4s;
}
.v-card:hover{transform:scale(1.025);box-shadow:var(--shadow-l);}
.v-card .vb{position:absolute;inset:0;}
.v-card .vt{position:relative;text-align:center;color:#fff;padding:20px;}
.v-card .vt b{display:block;font-size:15.5px;font-weight:600;margin-top:12px;text-shadow:0 2px 12px rgba(0,0,0,.3);}
.v-card .vt span{font-size:12px;opacity:.85;}
.play{
  width:52px;height:52px;border-radius:50%;margin:0 auto;display:grid;place-items:center;
  background:rgba(255,255,255,.9);backdrop-filter:blur(6px);
  transition:transform .35s var(--ease);
}
.v-card:hover .play{transform:scale(1.12);}
.play svg{width:18px;height:18px;color:var(--brand);margin-left:2px;}

.lightbox{
  position:fixed;inset:0;z-index:200;display:none;place-items:center;padding:5vw;
  background:rgba(9,22,42,.72);backdrop-filter:blur(10px);
}
.lightbox.on{display:grid;animation:fade .3s;}
@keyframes fade{from{opacity:0;}to{opacity:1;}}
.lb-box{width:min(880px,90vw);border-radius:var(--r-l);overflow:hidden;background:var(--white);box-shadow:var(--shadow-l);}
.lb-stage{aspect-ratio:16/9;display:grid;place-items:center;color:#fff;text-align:center;padding:24px;position:relative;}
.lb-stage h3{font-size:20px;margin-bottom:8px;}
.lb-stage p{font-size:13.5px;opacity:.9;}
.lb-bar{padding:16px 22px;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.lb-bar b{font-size:15px;}
.lb-bar span{font-size:13px;color:var(--muted);}
.lb-close{padding:7px 14px;border-radius:9px;background:var(--bg);font-size:13px;font-weight:600;color:var(--ink-2);}

/* ================= 关于 ================= */
.timeline{position:relative;padding-left:26px;}
.timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;border-radius:2px;background:linear-gradient(180deg,var(--brand-2),rgba(55,138,221,.1));}
.tl-item{position:relative;padding-bottom:30px;}
.tl-item::before{content:"";position:absolute;left:-25px;top:7px;width:12px;height:12px;border-radius:50%;background:#fff;border:2.5px solid var(--brand-2);}
.tl-item b{display:block;font-size:14px;color:var(--brand);font-weight:700;letter-spacing:.3px;}
.tl-item h4{font-size:16.5px;margin:3px 0 5px;font-weight:600;}
.tl-item p{font-size:14px;color:var(--muted);}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.val-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px;}
.val{padding:20px;border-radius:var(--r-m);background:var(--glass);border:1px solid var(--glass-brd);backdrop-filter:blur(12px);box-shadow:var(--shadow-s);}
.val b{display:block;font-size:15px;margin-bottom:6px;}
.val span{font-size:13.5px;color:var(--muted);line-height:1.65;}
.team-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:18px;}
.tm{padding:22px;text-align:center;border-radius:var(--r-m);background:var(--glass);border:1px solid var(--glass-brd);backdrop-filter:blur(12px);box-shadow:var(--shadow-s);transition:transform .35s var(--ease);}
.tm:hover{transform:translateY(-5px);}
.tm .av{width:64px;height:64px;border-radius:50%;margin:0 auto 14px;display:grid;place-items:center;font-size:20px;font-weight:700;color:#fff;background:linear-gradient(140deg,var(--brand-2),#7F77DD);}
.tm b{display:block;font-size:15.5px;}
.tm span{font-size:12.5px;color:var(--muted);}
.tm p{font-size:12.5px;color:var(--muted-2);margin-top:8px;line-height:1.6;}

/* ================= 数据条 ================= */
.stats-band{padding:64px 0;}
.stats-in{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat{padding:30px 24px;border-radius:var(--r-l);text-align:center;}
.stat b{display:block;font-size:clamp(30px,3.4vw,42px);font-weight:700;letter-spacing:-1.2px;color:var(--brand);line-height:1.1;}
.stat span{font-size:14px;color:var(--muted);}

/* ================= CTA ================= */
.cta{padding:0 0 96px;}
.cta-in{
  position:relative;overflow:hidden;padding:64px 56px;border-radius:var(--r-xl);
  background:linear-gradient(125deg,#0B2545,#123A63 52%,#185FA5);
  box-shadow:var(--shadow-l);
}
.cta-in::after{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:rgba(126,119,221,.3);filter:blur(70px);top:-160px;right:-90px;}
.cta-in h2{color:#fff;position:relative;z-index:1;}
.cta-in p{color:rgba(255,255,255,.78);margin-top:14px;font-size:16.5px;position:relative;z-index:1;max-width:560px;}
.cta-in .row{display:flex;gap:14px;margin-top:30px;position:relative;z-index:1;flex-wrap:wrap;}
.btn.on-dark{background:#fff;color:var(--ink);box-shadow:0 10px 26px rgba(0,0,0,.22);}
.btn.on-dark:hover{background:#EEF4FB;transform:translateY(-2px);}
.btn.line-on-dark{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.4);backdrop-filter:blur(8px);}

/* ================= 表单 ================= */
.form-wrap{display:grid;grid-template-columns:1fr .82fr;gap:32px;align-items:start;}
.form-card{padding:34px;border-radius:var(--r-l);}
.f-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:7px;color:var(--ink-2);}
.field label i{color:var(--brand);font-style:normal;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:11px;
  background:rgba(255,255,255,.82);border:1px solid rgba(24,95,165,.16);
  color:var(--ink);outline:none;transition:.25s;
}
.field textarea{min-height:110px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand-2);background:#fff;box-shadow:0 0 0 3px rgba(55,138,221,.13);
}
.field .err{display:none;font-size:12.5px;color:#C0392B;margin-top:6px;}
.field.bad input,.field.bad select,.field.bad textarea{border-color:#E0705F;background:#FFF6F5;}
.field.bad .err{display:block;}
.form-foot{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:6px;}
.form-foot .note{font-size:12.5px;color:var(--muted);}
.form-ok{display:none;margin-top:18px;padding:16px 18px;border-radius:12px;background:#E1F5EE;border:1px solid rgba(15,110,86,.25);color:#0F6E56;font-size:14px;}
.form-ok.on{display:block;animation:fade .3s;}

.contact-side{display:flex;flex-direction:column;gap:16px;}
.c-card{padding:24px;border-radius:var(--r-m);display:flex;gap:16px;align-items:flex-start;}
.c-card .ic{width:40px;height:40px;border-radius:11px;flex-shrink:0;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand);}
.c-card .ic svg{width:19px;height:19px;}
.c-card b{display:block;font-size:14.5px;margin-bottom:3px;}
.c-card span{font-size:13.5px;color:var(--muted);line-height:1.6;}
.qr{padding:24px;text-align:center;border-radius:var(--r-m);}
.qr .box{width:132px;height:132px;margin:0 auto 12px;border-radius:12px;background:repeating-conic-gradient(var(--ink) 0% 25%, #fff 0% 50%) 50%/16px 16px;opacity:.9;}
.qr b{display:block;font-size:14px;}
.qr span{font-size:12.5px;color:var(--muted);}

/* ================= 页脚 ================= */
footer{
  background:linear-gradient(180deg,#0B2545,#081C36);color:#fff;padding:72px 0 0;margin-top:40px;
}
.f-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;}
.f-logo{display:flex;align-items:center;gap:11px;margin-bottom:14px;}
footer .logo-txt{color:#fff;}
footer .logo-txt small{color:rgba(255,255,255,.5);}
footer p.f-desc{font-size:13.8px;color:rgba(255,255,255,.62);line-height:1.75;max-width:300px;}
footer h5{font-size:14px;margin-bottom:16px;color:#fff;font-weight:600;}
footer ul{list-style:none;}
footer ul li{margin-bottom:9px;}
footer ul a{font-size:13.5px;color:rgba(255,255,255,.6);transition:.25s;}
footer ul a:hover{color:#fff;}
.f-bot{border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.8px;color:rgba(255,255,255,.48);}

/* ================= 动效 ================= */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease);}
.reveal.in{opacity:1;transform:none;}
.reveal.d1{transition-delay:.08s;} .reveal.d2{transition-delay:.16s;}
.reveal.d3{transition-delay:.24s;} .reveal.d4{transition-delay:.32s;}

.to-top{
  position:fixed;right:26px;bottom:26px;z-index:90;
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  background:var(--glass-strong);backdrop-filter:blur(14px);border:1px solid var(--glass-brd);
  box-shadow:var(--shadow-m);color:var(--brand);
  opacity:0;pointer-events:none;transform:translateY(12px);transition:.35s var(--ease);
}
.to-top.on{opacity:1;pointer-events:auto;transform:none;}
.to-top svg{width:17px;height:17px;}

/* 页面头（内页） */
.ph{padding:96px 0 40px;text-align:center;}
.ph .lead{margin-left:auto;margin-right:auto;max-width:620px;}

/* ================= 响应式 ================= */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-visual{height:400px;order:-1;}
  .about-grid{grid-template-columns:1fr;gap:36px;}
  .form-wrap{grid-template-columns:1fr;}
  .f-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .stats-in{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:860px){
  .nav-links,.nav-tools .btn{display:none;}
  .burger{display:grid;margin-left:auto;}
  .nav-tools{margin-left:10px;}
  section{padding:70px 0;}
  .hero{padding:110px 0 60px;}
  .hero-visual{height:340px;}
  .float-chip{display:none;}
}
@media (max-width:640px){
  .f-grid{grid-template-columns:1fr;}
  .f-row{grid-template-columns:1fr;}
  .stats-in{grid-template-columns:1fr 1fr;}
  .hero-stats{grid-template-columns:1fr;}
  .val-grid{grid-template-columns:1fr;}
  .cta-in{padding:44px 26px;}
  .search{width:100%;margin-left:0;}
  .filters{margin-bottom:20px;}
  .form-card{padding:24px 20px;}
}