:root{
  --primary:#2f5d7c;
  --primary-dark:#21445d;
  --accent:#c68a3a;
  --bg:#f5f3ef;
  --card:#ffffff;
  --text:#333;
  --muted:#666;
  --border:#e4e0d9;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--text);
  background:var(--bg);
  font-family:"Noto Sans TC","Microsoft JhengHei","PingFang TC",Arial,sans-serif;
  line-height:1.8;
}
img{max-width:100%;height:auto}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
.container{width:min(1100px,92%);margin:0 auto}
.site-header{
  background:#fff;
  border-bottom:1px solid var(--border);
  position:sticky;
  top:0;
  z-index:20;
}
.header-inner{
  min-height:88px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:14px}
.brand img{width:72px;height:72px;object-fit:contain}
.brand-title{font-weight:800;font-size:clamp(20px,2.5vw,30px);letter-spacing:.08em}
.brand-sub{font-size:14px;color:var(--muted)}
.nav{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:6px}
.nav a{
  padding:8px 12px;
  border-radius:8px;
  color:#333;
  font-weight:700;
}
.nav a:hover,.nav a.active{background:var(--primary);color:#fff;text-decoration:none}
.hero{
  padding:64px 0;
  background:linear-gradient(135deg,#fff 0%,#f3eee5 100%);
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:center}
.hero-logo{display:block;width:min(430px,100%);margin:auto;filter:drop-shadow(0 12px 20px rgba(0,0,0,.08))}
.kicker{color:var(--accent);font-weight:800;letter-spacing:.12em}
h1{font-size:clamp(34px,5vw,56px);line-height:1.25;margin:8px 0 18px}
h2{font-size:clamp(25px,3vw,36px);margin:0 0 18px}
h3{font-size:21px;margin:0 0 10px}
.lead{font-size:18px;color:#555}
.page{padding:48px 0 64px}
.page-title{margin-bottom:30px}
.section{margin:34px 0}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:14px;
  padding:24px;
  box-shadow:0 5px 18px rgba(0,0,0,.04);
}
.card img{border-radius:10px}
.btn{
  display:inline-block;
  padding:10px 17px;
  background:var(--primary);
  color:#fff;
  border-radius:8px;
  font-weight:700;
}
.btn:hover{background:var(--primary-dark);text-decoration:none}
.content-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.photo-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:12px}
.photo-card img{display:block;width:100%;border-radius:9px}
.feature-list{padding-left:1.3em}
.feature-list li{margin:7px 0}
.product-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.product-tabs a{border:1px solid var(--border);background:#fff;padding:9px 14px;border-radius:999px;font-weight:700}
.product-tabs a.active,.product-tabs a:hover{background:var(--primary);color:#fff;border-color:var(--primary);text-decoration:none}
.gallery{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.gallery a{display:block;background:#fff;border:1px solid var(--border);border-radius:10px;padding:8px}
.gallery img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:6px}
.gallery a:hover{border-color:var(--primary);transform:translateY(-2px)}
.note{padding:14px 18px;background:#fff8ea;border-left:4px solid var(--accent);border-radius:8px}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.contact-item{background:#fff;border:1px solid var(--border);border-radius:14px;padding:22px}
.contact-label{font-size:13px;color:var(--muted);font-weight:700}
.contact-value{font-size:20px;font-weight:700;margin-top:3px}
.footer{background:#24333d;color:#fff;padding:26px 0;margin-top:20px}
.footer small{opacity:.9}
@media(max-width:850px){
  .header-inner{align-items:flex-start;flex-direction:column;padding:14px 0}
  .nav{justify-content:flex-start}
  .hero-grid,.content-grid,.contact-grid{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr 1fr}
  .gallery{grid-template-columns:repeat(4,1fr)}
}
@media(max-width:560px){
  .brand img{width:58px;height:58px}
  .brand-title{font-size:20px}
  .brand-sub{font-size:12px}
  .card-grid{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .hero{padding:38px 0}
  .page{padding:34px 0 48px}
}