:root{
  --brand:#0d9488;--brand-dark:#0b7d73;--ink:#0f172a;--ink-2:#334155;--muted:#64748b;
  --bg:#ffffff;--bg-soft:#f5f7f7;--teal-soft:#e6f4f2;--line:#e2e8f0;
  --dark-1:#0f172a;--dark-2:#114742;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang TC","Hiragino Sans GB","Microsoft JhengHei",system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7}
a{color:var(--brand);text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1080px;margin:0 auto;padding-inline:20px}

header.site{position:sticky;top:0;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);z-index:10}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);font-size:17px}
.logo img{width:30px;height:30px;border-radius:8px}
nav a{color:var(--ink-2);margin-left:22px;font-size:15px}
nav a.cta{background:var(--brand);color:#fff;padding:8px 18px;border-radius:999px}
nav a.cta:hover{background:var(--brand-dark)}

.hero{padding-block:88px 72px;text-align:center;background:linear-gradient(180deg,var(--teal-soft),#fff)}
.hero h1{font-size:clamp(30px,5vw,44px);letter-spacing:.5px;line-height:1.35}
.hero p.sub{color:var(--muted);font-size:clamp(16px,2.4vw,19px);margin-top:16px}
.hero .actions{margin-top:34px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 30px;border-radius:999px;font-size:16px;font-weight:600}
.btn.primary{background:var(--brand);color:#fff}
.btn.primary:hover{background:var(--brand-dark)}
.btn.ghost{border:1.5px solid var(--brand);color:var(--brand)}

section{padding-block:72px}
section.alt{background:var(--bg-soft)}
h2.sec{font-size:clamp(24px,3.6vw,32px);text-align:center}
p.sec-sub{text-align:center;color:var(--muted);margin-top:10px}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px;margin-top:44px}
.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px 26px}
.card .num{display:inline-flex;width:40px;height:40px;border-radius:12px;background:var(--teal-soft);color:var(--brand);align-items:center;justify-content:center;font-weight:700;font-size:18px}
.card h3{margin-top:14px;font-size:19px}
.card p{color:var(--ink-2);font-size:15px;margin-top:8px}

.shots{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;margin-top:44px}
.shots img{width:min(300px,80vw);border-radius:22px;box-shadow:0 18px 44px rgba(15,23,42,.18)}

.product-hero{display:flex;align-items:center;gap:48px;flex-wrap:wrap;justify-content:center}
.product-hero .txt{max-width:460px}

.badges{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.badge-btn{display:flex;align-items:center;gap:10px;background:var(--ink);color:#fff;padding:10px 20px;border-radius:12px;font-size:15px;line-height:1.3}
.badge-btn small{display:block;font-size:11px;opacity:.75}
.badge-btn:hover{background:#1e293b}

footer.site{background:var(--dark-1);color:#cbd5e1;padding-block:44px;font-size:14px}
footer.site .cols{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
footer.site a{color:#94a3b8}
footer.site a:hover{color:#e2e8f0}
footer.site .brandline{display:flex;align-items:center;gap:10px;color:#e2e8f0;font-weight:600}
footer.site .brandline img{width:26px;height:26px;border-radius:7px}
footer.site .fine{margin-top:22px;color:#64748b;font-size:12.5px}

.legal-body{max-width:760px;margin:0 auto;padding-block:56px}
.legal-body h1{font-size:28px;margin-bottom:8px}
.legal-body h2{font-size:20px;margin-top:32px}
.legal-body p,.legal-body li{color:var(--ink-2);font-size:15.5px;margin-top:10px}
.legal-body ul{padding-left:22px}

@media (max-width:640px){
  nav a:not(.cta){display:none}
  .hero{padding-block:64px 52px}
}