:root{--ink:#101827;--muted:#5b6b82;--line:#e4e9f1;--bg:#fff;--soft:#f6f8fb;--navy:#12305e;--accent:#1f5fd0}
*{box-sizing:border-box}
body{margin:0;font:16px/1.65 -apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--accent);text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 22px}
.top{position:sticky;top:0;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);z-index:50}
.bar{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px}
.logo{display:flex;align-items:baseline;gap:10px;color:var(--ink)}
.logo .mark{font-weight:800;letter-spacing:.5px;font-size:24px;color:var(--navy)}
.logo .sub{font-size:12px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
nav{display:flex;align-items:center;gap:26px;flex-wrap:wrap}
nav a{color:var(--ink);font-size:15px}
nav a.on{color:var(--accent);font-weight:600}
.btn-sm{background:var(--accent);color:#fff!important;padding:9px 16px;border-radius:8px;font-weight:600;font-size:14px}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:14px 26px;border-radius:10px;font-weight:600}
.btn.ghost{background:#fff;color:var(--navy);border:1px solid #c9d6ea}
.hero{background:linear-gradient(180deg,#f7fafe,#fff);border-bottom:1px solid var(--line);padding:74px 0 64px}
.hero .inner{display:grid;grid-template-columns:1.15fr .85fr;gap:54px;align-items:center}
h1{font-size:44px;line-height:1.15;margin:0 0 18px;letter-spacing:-.02em}
.lede{font-size:18px;color:var(--muted);margin:0 0 26px;max-width:560px}
.pill{display:inline-block;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);background:#eaf1fe;padding:5px 12px;border-radius:99px;margin-bottom:16px;font-weight:700}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:38px;border-top:1px solid var(--line);padding-top:26px}
.stat b{display:block;font-size:26px;color:var(--navy)}
.stat span{font-size:13px;color:var(--muted)}
.heroimg{border:1px solid var(--line);border-radius:16px;background:#fff;padding:16px}
h2{font-size:28px;margin:0 0 10px;letter-spacing:-.01em}
h3{font-size:20px;margin:0 0 8px}
section{padding:64px 0}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:30px}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff;transition:.18s;display:flex;flex-direction:column}
.card:hover{box-shadow:0 10px 30px rgba(16,24,39,.08);transform:translateY(-2px)}
.card .pic{aspect-ratio:1;background:#fafbfd;display:flex;align-items:center;justify-content:center;padding:14px}
.card .pic img{max-height:100%;width:auto;object-fit:contain}
.card .body{padding:14px 16px 18px;flex:1;display:flex;flex-direction:column;gap:6px}
.badge{font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#6b7a90}
.card h3{font-size:15px;line-height:1.35;margin:0}
.card .meta{font-size:12.5px;color:var(--muted);margin-top:auto}
.cta-band{background:var(--navy);color:#fff;padding:54px 0}
.cta-band h2{color:#fff}
.cta-band p{color:#c9d6ea;max-width:640px}
.grid3{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
.foot{background:#0d1a2e;color:#c9d6ea;padding:54px 0 24px;margin-top:0}
.foot a{color:#c9d6ea}
.foot h4{color:#fff;margin:0 0 10px;font-size:14px;letter-spacing:.06em;text-transform:uppercase}
.legal{border-top:1px solid #1e2f4a;margin-top:34px;padding-top:18px}
.muted{color:var(--muted)}
.small{font-size:13.5px}
.breadcrumb{font-size:13px;color:var(--muted);margin:22px 0 8px}
.pdp{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;padding-bottom:20px}
.gallery{border:1px solid var(--line);border-radius:16px;padding:18px;background:#fbfcfe}
.gallery .main{aspect-ratio:1;display:flex;align-items:center;justify-content:center}
.gallery .main img{max-height:100%;width:auto}
.thumbs{display:flex;gap:10px;margin-top:12px}
.thumbs img{width:70px;height:70px;object-fit:contain;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:pointer}
ul.features{padding-left:18px;margin:18px 0 24px}
ul.features li{margin-bottom:9px}
table.spec{width:100%;border-collapse:collapse;font-size:14.5px;margin:6px 0 8px}
table.spec th,table.spec td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--line);vertical-align:top}
table.spec th{width:38%;color:var(--muted);font-weight:500}
details{border-bottom:1px solid var(--line);padding:15px 0}
summary{cursor:pointer;font-weight:600}
details p{color:var(--muted);margin:10px 0 0}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px}
.chip{border:1px solid var(--line);border-radius:99px;padding:7px 16px;font-size:14px;cursor:pointer;background:#fff;color:var(--ink)}
.chip.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.note{background:#fff8ec;border:1px solid #f3dfc0;border-radius:10px;padding:14px 16px;font-size:14px;color:#6b4a12}
.form{display:grid;gap:14px;max-width:560px}
.form input,.form textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:9px;font:inherit}
@media(max-width:960px){.hero .inner,.pdp,.grid3{grid-template-columns:1fr}.grid{grid-template-columns:repeat(2,1fr)}h1{font-size:34px}nav{gap:14px}}
@media(max-width:560px){.grid{grid-template-columns:1fr}.stats{grid-template-columns:1fr 1fr}}