:root{
  --bg:#0b1220;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --line:#e5e7eb;
  --brand:#10b981; /* emerald */
  --brand2:#0ea5e9; /* sky */
  --shadow:0 14px 40px rgba(2,6,23,.12);
  --r:18px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:system-ui,-apple-system,"PingFang TC","Noto Sans CJK TC","Microsoft JhengHei",Arial,sans-serif;color:var(--text);background:#f6f7fb}
a{color:inherit}
.container{max-width:1120px;margin:0 auto;padding:0 18px}
.topbar{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.86);backdrop-filter:blur(10px);border-bottom:1px solid rgba(226,232,240,.9)}
.topbar .row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0}
.brand{display:flex;align-items:center;gap:10px}
.logo{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--brand2),var(--brand))}
.brand .name{font-weight:900}
.brand .sub{font-size:12px;color:var(--muted);margin-top:2px}
.nav{display:flex;gap:14px;flex-wrap:wrap}
.nav a{font-weight:700;text-decoration:none;color:#0f172a;opacity:.86}
.nav a:hover{opacity:1}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:12px 16px;border-radius:999px;border:1px solid rgba(16,185,129,.2);background:linear-gradient(135deg,var(--brand),#22c55e);color:#052e1b;font-weight:900;cursor:pointer;text-decoration:none}
.btn:hover{filter:brightness(.98)}
.btn.secondary{background:#fff;border:1px solid var(--line);color:#0f172a}
.hero{position:relative;overflow:hidden;background:var(--bg);color:#fff}
.hero .bg{position:absolute;inset:0;background:url("../images/hero.jpg") center/cover no-repeat;transform:scale(1.03)}
.hero .overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,18,32,.88) 0%,rgba(11,18,32,.62) 55%,rgba(11,18,32,.30) 100%)}
.hero .content{position:relative;padding:58px 0 44px}
.hero h1{margin:10px 0 10px;font-size:44px;line-height:1.12;letter-spacing:-.02em}
.hero p{margin:0 0 18px;color:rgba(226,232,240,.92);max-width:62ch;line-height:1.7}
.badges{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0 22px}
.badge{padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);font-weight:750}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap}
.section{padding:44px 0}
h2{margin:0 0 14px 0;font-size:28px;letter-spacing:-.01em}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}
.grid{display:grid;gap:18px}
.cols-3{grid-template-columns:repeat(3,1fr)}
.cols-2{grid-template-columns:repeat(2,1fr)}
@media (max-width:940px){.cols-3,.cols-2{grid-template-columns:1fr}.hero h1{font-size:36px}}
.product{overflow:hidden}
.product img{width:100%;height:250px;object-fit:cover;display:block}
.product .body{padding:14px 16px}
.product h3{margin:0 0 6px 0}
.product p{margin:0;color:var(--muted);line-height:1.7}
.feature{padding:18px;display:flex;gap:14px}
.feature .ic{width:42px;height:42px;border-radius:14px;background:rgba(14,165,233,.10);display:flex;align-items:center;justify-content:center;color:#0369a1;border:1px solid rgba(14,165,233,.18)}
.feature h3{margin:2px 0 6px;font-size:18px}
.feature p{margin:0;color:var(--muted);line-height:1.7}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:18px;align-items:stretch}
.split img{width:100%;height:100%;object-fit:cover;border-radius:var(--r);border:1px solid var(--line)}
@media (max-width:940px){.split{grid-template-columns:1fr}}
.notice{font-size:13px;color:#334155;background:#f1f5f9;border:1px dashed #cbd5e1;padding:12px;border-radius:14px;line-height:1.7}
.hr{height:1px;background:var(--line);margin:16px 0}
.form{padding:18px}
label{display:block;font-weight:800;margin:10px 0 6px}
input,textarea,select{width:100%;padding:12px;border-radius:14px;border:1px solid var(--line);font-size:16px;outline:none}
input:focus,textarea:focus,select:focus{border-color:rgba(14,165,233,.55);box-shadow:0 0 0 4px rgba(14,165,233,.12)}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:700px){.form .row{grid-template-columns:1fr}}
.footer{background:#0b1220;color:#cbd5e1;padding:28px 0}
.footer a{color:#93c5fd;text-decoration:none}
.footer a:hover{text-decoration:underline}
.footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:18px}
@media (max-width:940px){.footer .cols{grid-template-columns:1fr}}
.sticky-wa{
  position:fixed;left:14px;right:14px;bottom:14px;z-index:40;
}
.sticky-wa .bar{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 12px 12px 14px;border-radius:22px;background:rgba(255,255,255,.92);
  border:1px solid rgba(226,232,240,.9);box-shadow:0 18px 48px rgba(2,6,23,.18);
  backdrop-filter:blur(10px);
}
.sticky-wa .bar .txt{display:flex;flex-direction:column}
.sticky-wa .bar .txt .t{font-weight:950}
.sticky-wa .bar .txt .s{font-size:12px;color:var(--muted);margin-top:2px}
@media (min-width:940px){.sticky-wa{left:auto;right:18px;max-width:420px}}