:root{
  --bg:#f4f5f7;
  --card:#fff;
  --text:#111318;
  --muted:#70747b;
  --line:#e8e9ec;
  --dark:#0b0d10;
  --accent:#0b63ff;
  --accent2:#00a67d;
  --radius:22px;
  --shadow:0 18px 60px rgba(0,0,0,.08);
  --nav-h:72px;
  font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--text);background:#fff;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
img,svg{max-width:100%;display:block}
.container{width:min(1280px,calc(100% - 48px));margin:0 auto}
.nav{height:var(--nav-h);position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.88);backdrop-filter:blur(18px);border-bottom:1px solid rgba(0,0,0,.055)}
.nav .inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.08em;white-space:nowrap}
.brand-mark{width:34px;height:34px;border-radius:50%;background:conic-gradient(from 45deg,#0b63ff,#66a0ff,#111318,#0b63ff);position:relative;box-shadow:inset 0 0 0 8px #fff,0 0 0 1px #dfe3ea}
.brand small{display:block;font-size:10px;color:#8a8f98;letter-spacing:.24em;font-weight:600;margin-top:-2px}
.nav-links{display:flex;align-items:center;gap:26px;font-size:14px;color:#31343a}
.nav-links a{position:relative;padding:24px 0}
.nav-links a:after{content:"";position:absolute;left:0;right:0;bottom:15px;height:2px;background:#111;transform:scaleX(0);transition:.25s}
.nav-links a:hover:after,.nav-links a.active:after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px}
.btn{border:0;border-radius:999px;padding:12px 20px;font-weight:700;transition:.2s;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.btn-dark{background:#111;color:#fff}
.btn-dark:hover{background:#25282d;transform:translateY(-1px)}
.btn-light{background:#fff;color:#111;border:1px solid #dfe2e7}
.btn-light:hover{border-color:#111}
.btn-blue{background:var(--accent);color:#fff}
.btn-blue:hover{filter:brightness(.94);transform:translateY(-1px)}
.btn-block{width:100%}
.hero{min-height:calc(100vh - var(--nav-h));position:relative;overflow:hidden;background:radial-gradient(circle at 50% 10%,#fff 0,#f4f6f9 36%,#e9edf3 72%,#dbe2ec 100%)}
.hero:before{content:"";position:absolute;inset:auto 8% 3% 8%;height:22%;background:radial-gradient(ellipse,rgba(0,0,0,.16),transparent 65%);filter:blur(22px);opacity:.55}
.hero-copy{position:absolute;top:8%;left:50%;transform:translateX(-50%);text-align:center;z-index:4;width:min(900px,90%)}
.eyebrow{font-size:13px;letter-spacing:.25em;text-transform:uppercase;color:#737985;font-weight:700}
.hero h1{font-size:clamp(48px,7vw,92px);letter-spacing:-.055em;line-height:.95;margin:14px 0 12px;font-weight:760}
.hero p{font-size:clamp(18px,2vw,24px);color:#5f6570;margin:0 0 24px}
.hero-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}
.hero-car{position:absolute;left:50%;bottom:-2%;width:min(1180px,96vw);transform:translateX(-50%);z-index:2}
.scroll-indicator{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);z-index:5;color:#5f6570;font-size:12px;letter-spacing:.12em}
.section{padding:110px 0}
.section.soft{background:var(--bg)}
.section.dark{background:#0c0e12;color:#fff}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:48px}
.section-head h2{font-size:clamp(34px,4.5vw,62px);line-height:1.05;letter-spacing:-.04em;margin:0;max-width:760px}
.section-head p{margin:0;color:#777e88;max-width:520px;font-size:16px}
.section.dark .section-head p{color:#a8adb5}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.model-card{position:relative;background:#f5f6f8;border-radius:28px;min-height:520px;overflow:hidden;display:flex;flex-direction:column;padding:34px;transition:.3s}
.model-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.model-card h3{font-size:34px;letter-spacing:-.03em;margin:0 0 4px}
.model-card .sub{color:#70747b;font-size:14px}
.model-card .car-stage{margin-top:auto;margin-bottom:10px}
.model-card .meta{display:flex;justify-content:space-between;gap:16px;border-top:1px solid #dedfe3;padding-top:18px;margin-top:auto}
.model-card .meta b{font-size:18px;display:block}.model-card .meta span{font-size:11px;color:#7b8089}
.product-strip{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}
.feature-big{background:#0f1115;color:#fff;border-radius:30px;min-height:540px;padding:48px;overflow:hidden;position:relative}
.feature-big h3{font-size:52px;line-height:1.02;letter-spacing:-.04em;margin:0 0 16px;max-width:650px}
.feature-big p{color:#aeb4bf;max-width:560px}
.feature-big .orb{position:absolute;width:340px;height:340px;border-radius:50%;right:-60px;bottom:-80px;background:radial-gradient(circle at 35% 30%,#86b5ff,#0b63ff 35%,#12204f 68%,#090c12);filter:saturate(1.2);box-shadow:0 0 90px rgba(54,125,255,.35)}
.feature-stack{display:grid;gap:20px}
.feature-card{background:#f2f4f7;border-radius:30px;padding:38px;min-height:250px;position:relative;overflow:hidden}
.feature-card h4{font-size:28px;margin:0 0 10px;letter-spacing:-.03em}.feature-card p{color:#717680;margin:0;max-width:380px}
.feature-card .num{position:absolute;right:26px;bottom:10px;font-size:96px;font-weight:800;color:rgba(0,0,0,.05);line-height:1}
.process{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.process-item{background:#fff;border:1px solid #e6e8ec;border-radius:22px;padding:28px 22px;min-height:180px}
.process-item .n{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:#111;color:#fff;font-size:12px;margin-bottom:40px}.process-item h4{margin:0 0 8px;font-size:18px}.process-item p{margin:0;color:#777d86;font-size:13px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{padding:34px;border-radius:24px;background:#fff;border:1px solid #e7e8eb}.stat b{font-size:40px;letter-spacing:-.04em;display:block}.stat span{font-size:13px;color:#777d86}
.footer{background:#0b0d10;color:#fff;padding:58px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.2fr repeat(4,1fr);gap:36px;padding-bottom:48px}.footer h5{margin:0 0 16px;font-size:14px}.footer a,.footer p{color:#8d939c;font-size:13px;margin:7px 0;display:block}.footer-bottom{padding-top:22px;border-top:1px solid #25282d;display:flex;justify-content:space-between;color:#727780;font-size:12px}
.page-hero{padding:90px 0 50px;background:linear-gradient(#fff,#f5f6f8)}
.page-hero h1{font-size:clamp(46px,6vw,78px);letter-spacing:-.05em;margin:0 0 16px}.page-hero p{font-size:18px;color:#737983;max-width:740px}
.toolbar{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:28px;flex-wrap:wrap}.tabs{display:flex;gap:8px;flex-wrap:wrap}.chip{padding:10px 16px;border:1px solid #dfe2e6;background:#fff;border-radius:999px;color:#5d636d;font-size:13px}.chip.active{background:#111;color:#fff;border-color:#111}.select{padding:12px 14px;border-radius:12px;border:1px solid #dfe2e6;background:#fff;color:#333}
.model-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.model-tile{border:1px solid #e6e8ec;border-radius:26px;padding:28px;background:#fff;transition:.25s}.model-tile:hover{box-shadow:var(--shadow);transform:translateY(-4px)}.model-tile h3{font-size:30px;margin:0}.model-tile .tag{display:inline-block;margin-top:8px;padding:5px 9px;border-radius:999px;background:#eef3ff;color:#135ad8;font-size:11px}.model-tile .car-stage{margin:20px 0}.model-tile .specs{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;border-top:1px solid #eceef1;padding-top:18px}.model-tile .specs b{display:block;font-size:16px}.model-tile .specs span{font-size:11px;color:#7e838b}
.config-shell{display:grid;grid-template-columns:minmax(0,1fr) 430px;min-height:calc(100vh - var(--nav-h));background:#f4f5f7}
.config-view{position:sticky;top:var(--nav-h);height:calc(100vh - var(--nav-h));overflow:hidden;display:flex;flex-direction:column;justify-content:center;align-items:center;background:radial-gradient(circle at 50% 15%,#fff,#f0f3f7 56%,#dfe5ed 100%)}
.config-view:after{content:"";width:70%;height:80px;background:radial-gradient(ellipse,rgba(0,0,0,.22),transparent 65%);filter:blur(14px);position:absolute;bottom:12%;left:15%}
.config-title{position:absolute;left:42px;top:36px;z-index:3}.config-title h1{font-size:36px;margin:0;letter-spacing:-.04em}.config-title p{margin:5px 0 0;color:#717680}.config-car{width:min(900px,94%);z-index:2;transition:.35s ease;filter:drop-shadow(0 30px 22px rgba(0,0,0,.13))}.config-view .mini-specs{position:absolute;left:42px;bottom:34px;z-index:3;display:flex;gap:36px}.mini-specs b{display:block;font-size:18px}.mini-specs span{font-size:11px;color:#727780}
.config-panel{background:#fff;border-left:1px solid #e2e4e8;padding:34px 28px 120px;overflow:auto;height:calc(100vh - var(--nav-h));position:sticky;top:var(--nav-h)}
.config-panel h2{font-size:28px;margin:0 0 6px}.config-panel .price{font-size:28px;font-weight:800;margin:18px 0 10px}.config-section{padding:24px 0;border-top:1px solid #eceef1}.config-section:first-of-type{border-top:0}.config-section h4{margin:0 0 14px;font-size:14px}.option-row{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.option-card{border:1px solid #dfe2e7;border-radius:14px;padding:14px;min-height:58px;background:#fff;text-align:left;transition:.2s}.option-card:hover{border-color:#8b9099}.option-card.active{border:2px solid #111;padding:13px}.option-card small{display:block;color:#80858d;margin-top:4px}.swatches{display:flex;gap:12px;flex-wrap:wrap}.swatch-wrap{text-align:center;font-size:10px;color:#747a83}.swatch{width:40px;height:40px;border-radius:50%;border:4px solid #fff;box-shadow:0 0 0 1px #d3d6dc;margin:0 auto 6px;transition:.2s}.swatch.active{box-shadow:0 0 0 2px #111}.qty{display:flex;align-items:center;justify-content:space-between;border:1px solid #dfe2e7;border-radius:14px;padding:8px}.qty button{width:34px;height:34px;border:0;background:#f2f3f5;border-radius:50%}.config-bottom{position:fixed;right:0;bottom:0;width:430px;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-top:1px solid #e1e3e7;padding:15px 28px;z-index:100}.config-bottom .sum{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.config-bottom b{font-size:20px}
.inventory-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:24px}.filter-card{position:sticky;top:94px;align-self:start;border:1px solid #e5e7ea;border-radius:20px;padding:22px}.filter-card h4{margin:0 0 14px}.filter-card label{font-size:12px;color:#777d86;display:block;margin:16px 0 7px}.filter-card select,.filter-card input{width:100%;padding:11px;border:1px solid #dfe2e6;border-radius:10px;background:#fff}.stock-table{width:100%;border-collapse:separate;border-spacing:0 10px}.stock-table thead th{text-align:left;font-size:11px;color:#858b94;font-weight:600;padding:0 14px}.stock-table tbody td{padding:16px 14px;background:#fff;border-top:1px solid #e8eaed;border-bottom:1px solid #e8eaed;font-size:13px}.stock-table tbody td:first-child{border-left:1px solid #e8eaed;border-radius:14px 0 0 14px}.stock-table tbody td:last-child{border-right:1px solid #e8eaed;border-radius:0 14px 14px 0}.status{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;font-size:11px;background:#eaf8f3;color:#08775c}.status.low{background:#fff4e5;color:#a45a00}.status.locked{background:#f1f2f4;color:#626872}
.cart-layout{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:24px}.panel{border:1px solid #e5e7ea;border-radius:22px;background:#fff;padding:26px}.cart-item{display:grid;grid-template-columns:180px 1fr auto;gap:22px;padding:20px 0;border-bottom:1px solid #eceef1}.cart-item:last-child{border-bottom:0}.cart-item h3{margin:0;font-size:22px}.cart-item p{margin:6px 0;color:#747a83;font-size:13px}.cart-item .price{font-size:18px;font-weight:700}.summary-line{display:flex;justify-content:space-between;margin:12px 0;color:#6e747c}.summary-line.total{padding-top:16px;border-top:1px solid #e7e9ec;color:#111;font-size:18px;font-weight:800}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.field label{display:block;font-size:12px;color:#6f747d;margin:0 0 7px}.field input,.field select,.field textarea{width:100%;padding:12px 13px;border:1px solid #dfe2e6;border-radius:11px;background:#fff}.field.full{grid-column:1/-1}.field textarea{min-height:100px;resize:vertical}
.track-card{max-width:760px;margin:0 auto}.track-search{display:flex;gap:10px}.track-search input{flex:1;padding:14px 16px;border:1px solid #dfe2e6;border-radius:12px}.timeline{margin-top:34px;padding-left:22px;border-left:1px solid #dfe2e6}.time-item{position:relative;padding:0 0 32px 18px}.time-item:before{content:"";position:absolute;width:11px;height:11px;border-radius:50%;background:#c5c9cf;left:-28px;top:5px;border:3px solid #fff;box-shadow:0 0 0 1px #c5c9cf}.time-item.active:before{background:#111;box-shadow:0 0 0 1px #111}.time-item h4{margin:0 0 4px}.time-item p{margin:0;color:#777d86;font-size:13px}
.admin-body{background:#f5f6f8}.admin-shell{display:grid;grid-template-columns:230px 1fr;min-height:100vh}.sidebar{background:#0d1014;color:#fff;padding:24px 18px;position:sticky;top:0;height:100vh}.sidebar .brand{margin:0 10px 32px}.side-link{display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:10px;color:#9ba1aa;margin:4px 0;font-size:13px}.side-link.active,.side-link:hover{background:#1b1f25;color:#fff}.admin-main{padding:30px}.admin-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:26px}.admin-top h1{margin:0;font-size:30px}.admin-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.admin-card{background:#fff;border:1px solid #e4e6ea;border-radius:18px;padding:20px}.admin-card span{color:#7c828b;font-size:12px}.admin-card b{display:block;font-size:30px;margin-top:8px}.admin-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:18px;margin-top:18px}.table-card{background:#fff;border:1px solid #e4e6ea;border-radius:18px;padding:20px;overflow:auto}.table-card h3{margin:0 0 18px}.admin-table{width:100%;border-collapse:collapse;font-size:12px}.admin-table th,.admin-table td{text-align:left;padding:12px;border-bottom:1px solid #eceef1}.admin-table th{color:#858b94;font-weight:600}.admin-table input{width:70px;padding:7px;border:1px solid #dfe2e6;border-radius:8px}
.arch-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.arch-card{border:1px solid #e3e6ea;border-radius:20px;padding:24px;min-height:220px;position:relative;overflow:hidden}.arch-card .icon{width:46px;height:46px;border-radius:14px;background:#111;color:#fff;display:grid;place-items:center;font-weight:800;margin-bottom:36px}.arch-card h4{margin:0 0 10px;font-size:20px}.arch-card p{color:#747a83;font-size:13px;margin:0}.arch-card:after{content:"";position:absolute;width:140px;height:140px;border-radius:50%;background:linear-gradient(135deg,#dbe6ff,#eef3ff);right:-60px;bottom:-70px}
.reveal{opacity:0;transform:translateY(20px);transition:.65s ease}.reveal.visible{opacity:1;transform:none}
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);opacity:0;background:#111;color:#fff;padding:12px 18px;border-radius:999px;font-size:13px;z-index:5000;transition:.25s}.toast.show{opacity:1;transform:translate(-50%,0)}
.mobile-toggle{display:none;border:0;background:#fff;font-size:22px}
.mobile-menu{display:none}
@media(max-width:1100px){.nav-links{display:none}.mobile-toggle{display:block}.config-shell{grid-template-columns:1fr}.config-view{position:relative;top:0;height:62vh;min-height:520px}.config-panel{position:relative;top:0;height:auto;border-left:0}.config-bottom{width:100%}.grid-3,.model-grid{grid-template-columns:repeat(2,1fr)}.process{grid-template-columns:repeat(3,1fr)}.inventory-layout{grid-template-columns:1fr}.filter-card{position:relative;top:0}.admin-shell{grid-template-columns:1fr}.sidebar{position:relative;height:auto;display:none}.admin-cards{grid-template-columns:repeat(2,1fr)}.admin-grid{grid-template-columns:1fr}}
@media(max-width:760px){.container{width:min(100% - 28px,1280px)}.nav-actions .btn-light{display:none}.hero-copy{top:9%}.hero h1{font-size:50px}.hero p{font-size:16px}.hero-car{width:130vw;bottom:8%}.section{padding:72px 0}.section-head{display:block}.section-head p{margin-top:14px}.grid-3,.grid-4,.model-grid,.stats,.arch-grid{grid-template-columns:1fr}.product-strip{grid-template-columns:1fr}.process{grid-template-columns:1fr}.feature-big{min-height:430px;padding:30px}.feature-big h3{font-size:40px}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>:first-child{grid-column:1/-1}.footer-bottom{display:block}.page-hero{padding:64px 0 34px}.config-view{height:52vh;min-height:430px}.config-title{left:20px;top:24px}.config-title h1{font-size:28px}.config-view .mini-specs{left:20px;bottom:24px;gap:18px}.config-panel{padding:26px 18px 120px}.config-bottom{padding:14px 18px}.cart-layout{grid-template-columns:1fr}.cart-item{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.admin-main{padding:18px}.admin-cards{grid-template-columns:1fr}.stock-table{min-width:820px}.table-card{overflow:auto}.track-search{display:grid}.option-row{grid-template-columns:1fr 1fr}}