:root{
  --bg:#f7fbff;
  --bg2:#eef6ff;
  --panel:#ffffff;
  --panel-blue:#f1f7ff;
  --line:#dce8f5;
  --text:#13243a;
  --muted:#62758c;
  --blue:#1769e0;
  --blue2:#3b8df0;
  --cyan:#58b8ff;
  --navy:#0b3f78;
  --white:#fff;
  --shadow:0 18px 55px rgba(28,89,158,.10);
  --radius:24px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.section{padding:88px 0}
.section.compact{padding:58px 0}
.eyebrow{font-size:13px;letter-spacing:.18em;text-transform:uppercase;color:var(--blue);font-weight:800}
.section-title{font-size:clamp(30px,4vw,52px);line-height:1.15;margin:12px 0 18px;color:#102844}
.section-desc{max-width:780px;color:var(--muted);font-size:17px}

.topbar{height:34px;background:#0f66c6;color:#eaf5ff;font-size:12px;border-bottom:1px solid rgba(255,255,255,.18)}
.topbar .container{display:flex;align-items:center;justify-content:flex-end;height:100%;gap:22px}
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.93);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);box-shadow:0 8px 30px rgba(30,86,145,.04)}
.nav{height:76px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.02em;color:#11365f}
.brand-mark{width:38px;height:38px;border-radius:12px;position:relative;background:linear-gradient(135deg,#0f63d8,#62bdff);box-shadow:0 10px 24px rgba(23,105,224,.22)}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;border:2px solid rgba(255,255,255,.86);border-radius:50%;inset:8px}
.brand-mark:after{inset:14px}
.brand small{display:block;color:#71859a;font-size:10px;font-weight:600;letter-spacing:.12em}
.nav-links{display:flex;gap:28px;align-items:center;font-size:14px}
.nav-links a{color:#435b73;transition:.25s}
.nav-links a:hover,.nav-links a.active{color:var(--blue)}
.nav-cta{padding:11px 18px;border:1px solid #b8d5f7;border-radius:12px;background:#edf6ff;color:var(--blue)!important}
.menu-btn{display:none;background:none;border:0;color:#1a4f86;font-size:26px}

.hero{position:relative;overflow:hidden;padding:100px 0 82px;background:linear-gradient(135deg,#ffffff 0%,#f5faff 48%,#e9f5ff 100%);border-bottom:1px solid #e3edf8}
.hero:before{content:"";position:absolute;width:760px;height:760px;border-radius:50%;right:-250px;top:-280px;background:radial-gradient(circle,rgba(71,160,255,.24),transparent 64%);filter:blur(8px)}
.hero:after{content:"";position:absolute;width:500px;height:500px;left:-300px;bottom:-340px;border-radius:50%;background:radial-gradient(circle,rgba(23,105,224,.10),transparent 66%)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center;position:relative;z-index:1}
.hero h1{font-size:clamp(44px,6vw,78px);line-height:1.05;margin:18px 0 22px;letter-spacing:-.04em;color:#102947}
.hero h1 span{background:linear-gradient(90deg,#105ec7,#4aa8f8);-webkit-background-clip:text;color:transparent}
.hero p{font-size:19px;color:#587089;max-width:710px}
.hero-actions{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 22px;border-radius:14px;font-weight:700;font-size:14px;border:1px solid var(--line);transition:.25s}
.btn.primary{background:linear-gradient(135deg,#1265d8,#45a3f6);color:#fff;border:0;box-shadow:0 12px 28px rgba(23,105,224,.22)}
.btn.ghost{background:#fff;color:#1e5f9f;border-color:#cfe1f3}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(29,93,159,.14)}
.hero-note{margin-top:32px;display:flex;gap:24px;flex-wrap:wrap;color:#5f7891;font-size:13px}
.hero-visual{position:relative;min-height:490px}
.wafer{position:absolute;width:360px;aspect-ratio:1;border-radius:50%;right:35px;top:40px;background:radial-gradient(circle at 42% 38%,#ffffff 0 4%,#a9e6ff 5%,#5ba8f5 28%,#2b6bc7 48%,#194d92 68%,#123c74 70%);box-shadow:0 24px 70px rgba(34,111,199,.25),inset -24px -30px 80px rgba(12,58,112,.22);transform:rotate(-11deg)}
.wafer:before{content:"";position:absolute;inset:8%;border-radius:50%;background:repeating-linear-gradient(0deg,rgba(255,255,255,.28) 0 1px,transparent 1px 14px),repeating-linear-gradient(90deg,rgba(255,255,255,.25) 0 1px,transparent 1px 14px);mask-image:radial-gradient(circle,#000 0 72%,transparent 73%)}
.wafer:after{content:"";position:absolute;bottom:0;left:44%;width:55px;height:10px;background:#eaf5ff}
.floating-card{position:absolute;padding:18px 20px;border-radius:18px;background:rgba(255,255,255,.90);border:1px solid #d6e7f7;backdrop-filter:blur(12px);box-shadow:var(--shadow);font-size:13px;color:#61768d}
.floating-card strong{display:block;font-size:15px;color:#123c68;margin-bottom:3px}
.fc1{left:0;top:60px}.fc2{right:0;bottom:45px}.fc3{left:55px;bottom:4px}

.metric-strip{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:22px;overflow:hidden;background:#fff;box-shadow:0 12px 36px rgba(30,90,150,.06)}
.metric{padding:24px;border-right:1px solid var(--line)}
.metric:last-child{border-right:0}
.metric strong{font-size:26px;display:block;color:#164f8c}
.metric span{font-size:13px;color:var(--muted)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:0 14px 42px rgba(25,83,145,.07);transition:.28s}
.card:hover{transform:translateY(-6px);border-color:#a9cef5;box-shadow:0 18px 46px rgba(26,92,160,.13)}
.card h3{margin:12px 0 8px;font-size:21px;color:#14375f}
.card p{color:var(--muted);font-size:14px}
.icon-box{width:48px;height:48px;border-radius:15px;display:grid;place-items:center;background:linear-gradient(135deg,#e8f4ff,#dff0ff);border:1px solid #c9e2fb;color:#1569c8;font-size:22px}
.tag-list{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
.tag{padding:6px 10px;border-radius:999px;background:#f3f8fe;border:1px solid #d9e8f6;font-size:12px;color:#52718f}

.dark-panel{border:1px solid #d6e7f7;border-radius:30px;background:linear-gradient(145deg,#f8fbff,#e9f5ff);overflow:hidden;box-shadow:0 16px 48px rgba(30,90,150,.07)}
.split{display:grid;grid-template-columns:1fr 1fr;align-items:stretch}
.split-copy{padding:54px}
.process-list{display:grid;gap:0}
.process-item{display:grid;grid-template-columns:70px 1fr;gap:18px;padding:26px 0;border-bottom:1px solid #d7e6f4}
.process-item:last-child{border-bottom:0}
.process-num{font-size:30px;color:#1b77dc;font-weight:800}
.process-item h3{margin:0 0 6px;color:#173c65}
.process-item p{margin:0;color:var(--muted)}
.visual-grid{padding:28px;display:grid;grid-template-columns:repeat(6,1fr);grid-template-rows:repeat(6,1fr);gap:8px;min-height:430px;background:radial-gradient(circle at 30% 20%,rgba(74,168,248,.25),transparent 55%),linear-gradient(145deg,#eef7ff,#dceeff)}
.chip{border:1px solid rgba(31,116,207,.15);border-radius:10px;background:linear-gradient(135deg,rgba(55,142,231,.12),rgba(92,183,255,.18));box-shadow:inset 0 0 20px rgba(53,141,232,.05)}
.chip:nth-child(3n){background:rgba(49,142,234,.17)}
.cta{padding:56px;border:1px solid #c8def4;border-radius:30px;background:linear-gradient(135deg,#eef7ff,#fafdff);display:flex;align-items:center;justify-content:space-between;gap:30px;box-shadow:0 16px 40px rgba(30,90,150,.06)}
.cta h2{margin:0 0 10px;font-size:34px;color:#12395f}
.cta p{margin:0;color:var(--muted)}

.page-hero{padding:74px 0 56px;border-bottom:1px solid var(--line);background:radial-gradient(circle at 80% 20%,rgba(68,155,246,.18),transparent 35%),linear-gradient(180deg,#fff,#f2f8ff)}
.page-hero h1{font-size:clamp(40px,5vw,62px);margin:12px 0;color:#102b49}
.breadcrumbs{font-size:13px;color:var(--muted)}
.content-nav{position:sticky;top:90px}
.two-col{display:grid;grid-template-columns:280px 1fr;gap:44px}
.side-card{padding:20px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:0 10px 30px rgba(28,84,143,.05)}
.side-card a{display:block;padding:10px 12px;border-radius:10px;color:var(--muted);font-size:14px}
.side-card a:hover{color:var(--blue);background:#eff7ff}
.detail-block{padding:34px 0;border-bottom:1px solid var(--line)}
.detail-block h2{font-size:30px;margin:0 0 10px;color:#143c66}
.detail-block h3{font-size:20px;color:#173c65}
.spec-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.spec{padding:16px 18px;border:1px solid var(--line);border-radius:14px;background:#fff;color:#4b6680;box-shadow:0 6px 22px rgba(28,84,143,.035)}
.case-card{padding:30px;border:1px solid var(--line);border-radius:24px;background:#fff;box-shadow:0 12px 34px rgba(28,84,143,.05)}
.case-data{width:100%;border-collapse:collapse;margin-top:20px}
.case-data th,.case-data td{text-align:left;padding:12px;border-bottom:1px solid var(--line);font-size:14px}
.case-data th{color:#14375f;background:#f6faff}
.case-data td{color:var(--muted)}
.faq details{border-bottom:1px solid var(--line);padding:18px 0}
.faq summary{cursor:pointer;font-weight:700;color:#183d63}
.faq p{color:var(--muted);margin-bottom:0}

.contact-grid{display:grid;grid-template-columns:.78fr 1.22fr;gap:30px}
.contact-info{padding:34px;border:1px solid #d5e5f5;border-radius:26px;background:linear-gradient(180deg,#edf7ff,#ffffff);box-shadow:0 12px 36px rgba(30,90,150,.06)}
.contact-form{padding:34px;border:1px solid var(--line);border-radius:26px;background:#fff;box-shadow:0 12px 36px rgba(30,90,150,.06)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;color:#4d6780}
.field input,.field select,.field textarea{width:100%;background:#fff;border:1px solid #cfe0f1;border-radius:12px;color:#18324d;padding:13px 14px;outline:none;transition:.2s}
.field textarea{min-height:160px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:#5ca8ef;box-shadow:0 0 0 3px rgba(66,150,236,.11)}
.form-note{font-size:12px;color:var(--muted)}

.footer{padding:60px 0 28px;border-top:1px solid #0c4f90;background:linear-gradient(180deg,#0d4f8d,#0b3e70);color:#fff}
.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:34px}
.footer .brand{color:#fff}.footer .brand small{color:#cfe5fb}.footer .brand-mark{background:linear-gradient(135deg,#63c0ff,#ffffff)}
.footer h4{margin:0 0 14px;color:#fff}
.footer a,.footer p{display:block;color:#d0e4f7;font-size:13px;margin:8px 0}
.footer a:hover{color:#fff}
.footer-bottom{margin-top:34px;padding-top:22px;border-top:1px solid rgba(255,255,255,.16);display:flex;justify-content:space-between;color:#b9d4ed;font-size:12px}
.notice{padding:12px 14px;border-radius:12px;margin-top:14px;display:none}
.notice.ok{display:block;background:#edf9f4;border:1px solid #b9e8d2;color:#257451}
.notice.err{display:block;background:#fff2f2;border:1px solid #f3c4c4;color:#b84444}

@media(max-width:980px){
  .nav-links{display:none;position:absolute;left:20px;right:20px;top:82px;padding:18px;flex-direction:column;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}
  .nav-links.open{display:flex}.menu-btn{display:block}
  .hero-grid,.split,.contact-grid,.two-col{grid-template-columns:1fr}
  .hero-visual{min-height:420px}.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:1fr 1fr}.content-nav{position:static}
  .metric-strip{grid-template-columns:1fr 1fr}.metric:nth-child(2){border-right:0}.metric{border-bottom:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .container{width:min(100% - 26px,1180px)}.hero{padding-top:72px}.hero-grid{gap:30px}.hero-visual{min-height:340px}.wafer{width:260px;right:10px}.fc1{top:20px}.fc2{bottom:20px}.fc3{display:none}
  .grid-3,.grid-4,.form-grid{grid-template-columns:1fr}.metric-strip{grid-template-columns:1fr}.metric{border-right:0}.cta{padding:32px;align-items:flex-start;flex-direction:column}.section{padding:64px 0}.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column;gap:10px}.split-copy{padding:30px}.spec-list{grid-template-columns:1fr}
}