:root{
  --bg:#f7f5f0; --panel:#ffffff; --ink:#2b2b2b; --muted:#6b6b6b;
  --brand:#3b5366; --brand-dark:#2b3e4d; --line:#e3ddd2; --accent:#b08d57;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;
  line-height:1.7;-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1140px;margin:0 auto;padding:0 24px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(247,245,240,.92);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.5px;color:var(--brand);font-size:1.02rem}
.brand img{height:34px;width:auto}
.nav-links{display:flex;gap:28px;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--ink);font-size:.95rem;padding:6px 2px;border-bottom:2px solid transparent;transition:.2s}
.nav-links a:hover,.nav-links a.active{color:var(--brand);border-color:var(--accent)}
.nav-toggle{display:none;background:none;border:0;font-size:1.6rem;color:var(--brand);cursor:pointer}
.hero{position:relative;color:#fff;text-align:center;
  background:linear-gradient(rgba(30,42,52,.62),rgba(30,42,52,.62)),url("../img/hero.jpg") center/cover}
.hero-inner{padding:110px 24px}
.hero h1{font-size:2rem;font-weight:700;margin:0 auto 18px;max-width:900px;line-height:1.5}
.hero p{max-width:760px;margin:0 auto;color:#eee;font-size:1.02rem}
.section{padding:72px 0}
.section h2{text-align:center;font-size:1.6rem;margin:0 0 8px;color:var(--brand-dark)}
.section .lead{text-align:center;color:var(--muted);margin:0 auto 46px;max-width:680px}
.page-title{padding:64px 0 8px;text-align:center}
.page-title h1{font-size:1.9rem;color:var(--brand-dark);margin:0}
.grid{display:grid;gap:28px;grid-template-columns:repeat(3,1fr)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden;
  display:flex;flex-direction:column;transition:.25s;box-shadow:0 1px 2px rgba(0,0,0,.03)}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(43,62,77,.12)}
.card img{aspect-ratio:4/3;object-fit:cover;width:100%}
.card-body{padding:20px 22px}
.card-body h3{margin:0 0 8px;font-size:1.08rem;color:var(--brand-dark)}
.card-body p{margin:0;color:var(--muted);font-size:.93rem}
.prose{max-width:820px;margin:0 auto;font-size:1.04rem;color:#3a3a3a}
.prose p{margin:0 0 20px}
.contact{display:grid;grid-template-columns:1fr 1fr;gap:40px;max-width:980px;margin:48px auto 0}
.contact h3{color:var(--brand-dark);margin:0 0 14px}
.field{display:block;margin-bottom:16px}
.field label{display:block;font-size:.88rem;color:var(--muted);margin-bottom:6px}
.field input,.field textarea{width:100%;padding:11px 13px;border:1px solid var(--line);
  border-radius:8px;font:inherit;background:#fff}
.btn{display:inline-block;background:var(--brand);color:#fff;border:0;border-radius:8px;
  padding:12px 30px;font:inherit;cursor:pointer;transition:.2s}
.btn:hover{background:var(--brand-dark)}
.info-line{margin:0 0 10px;color:#3a3a3a}
.info-line strong{color:var(--brand-dark)}
.site-footer{background:var(--brand-dark);color:#cdd6dc;text-align:center;padding:34px 24px;font-size:.88rem}
@media(max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.contact{grid-template-columns:1fr}}
@media(max-width:620px){
  .grid{grid-template-columns:1fr}
  .nav-links{position:absolute;top:68px;left:0;right:0;background:var(--bg);flex-direction:column;
    gap:0;border-bottom:1px solid var(--line);display:none}
  .nav-links.open{display:flex}
  .nav-links li{border-top:1px solid var(--line)}
  .nav-links a{display:block;padding:14px 24px;border:0}
  .nav-toggle{display:block}
  .hero h1{font-size:1.5rem}
}
.logos .card img{object-fit:contain;background:#fff;padding:22px}
.logos .card-body{border-top:1px solid var(--line)}

.form-status{margin:12px 0 0;font-size:.92rem;min-height:1.2em}
.form-status.ok{color:#2e7d32}
.form-status.err{color:#c0392b}