:root {
  --bg: #f7f4ef;
  --card: #fff;
  --ink: #1f2933;
  --muted: #5b6770;
  --accent: #0f6b5c;
  --accent-soft: #e6f3ef;
  --line: #e5ddd0;
  --warn: #8a5a00;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 960px; margin: 0 auto; padding: 0 1.25rem; }
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 10;
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: .9rem 0; flex-wrap: wrap;
}
.brand { font-weight: 700; font-size: 1.15rem; color: var(--ink); }
.brand span { color: var(--accent); }
.nav-links { display: flex; gap: 1rem; flex-wrap: wrap; font-size: .95rem; }
.nav-links a { color: var(--muted); }
.nav-links a:hover, .nav-links a.active { color: var(--accent); }
.hero {
  padding: 2.5rem 0 1.5rem;
}
.hero h1 { font-size: clamp(1.6rem, 4vw, 2.2rem); margin: 0 0 .75rem; }
.hero p { margin: 0; color: var(--muted); max-width: 36rem; }
.badge {
  display: inline-block; background: var(--accent-soft); color: var(--accent);
  padding: .2rem .6rem; border-radius: 999px; font-size: .85rem; margin-bottom: .75rem;
}
.grid {
  display: grid; gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  margin: 1.5rem 0 2rem;
}
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 14px; padding: 1.1rem 1.15rem;
}
.card h3 { margin: 0 0 .4rem; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); font-size: .95rem; }
section { padding: 1.25rem 0 2rem; }
section h2 { margin: 0 0 1rem; font-size: 1.35rem; }
.meta { color: var(--muted); font-size: .95rem; }
.cta-row { display: flex; gap: .75rem; flex-wrap: wrap; margin-top: 1.25rem; }
.btn {
  display: inline-block; background: var(--accent); color: #fff !important;
  padding: .65rem 1.1rem; border-radius: 10px; font-weight: 600;
  text-decoration: none !important; border: none; cursor: pointer;
}
.btn.secondary { background: #fff; color: var(--accent) !important; border: 1px solid var(--accent); }
.site-footer {
  border-top: 1px solid var(--line); padding: 1.5rem 0 2rem;
  color: var(--muted); font-size: .9rem; margin-top: 1rem;
}
.note {
  background: #fff8e8; border: 1px solid #f0dfb0; color: var(--warn);
  padding: .75rem 1rem; border-radius: 10px; font-size: .9rem; margin: 1rem 0;
}
.list { margin: 0; padding-left: 1.1rem; color: var(--muted); }
.list li { margin: .35rem 0; }
.admin-body { min-height: 100vh; display: grid; place-items: center; padding: 1rem; }
.login-box { width: min(380px, 100%); background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 1.5rem; }
.login-box h1 { margin: 0 0 .5rem; font-size: 1.25rem; }
.login-box label { display: block; font-size: .9rem; margin: .75rem 0 .3rem; }
.login-box input {
  width: 100%; padding: .65rem .7rem; border: 1px solid var(--line);
  border-radius: 8px; font-size: 1rem;
}
.admin-shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.side {
  background: #14352f; color: #e8f5f1; padding: 1.25rem;
}
.side h2 { margin: 0 0 1rem; font-size: 1.05rem; }
.side a { display: block; color: #c9e8df; padding: .45rem 0; }
.main { padding: 1.5rem; }
.main h1 { margin: 0 0 1rem; font-size: 1.4rem; }
.stub { background: #fff; border: 1px dashed var(--line); border-radius: 12px; padding: 1rem; color: var(--muted); }
@media (max-width: 720px) {
  .admin-shell { grid-template-columns: 1fr; }
}
.hero-grid { display:grid; gap:1.25rem; grid-template-columns:1.2fr 1fr; align-items:center; }
@media (max-width:800px){ .hero-grid{ grid-template-columns:1fr; } }
.preview-shot { width:100%; border-radius:12px; border:1px solid var(--line); background:#fff; display:block; }
.muted-btn { opacity:.55; pointer-events:none; cursor:not-allowed; }
.flow { display:flex; gap:.5rem; flex-wrap:wrap; margin:1rem 0; }
.flow span { background:var(--accent-soft); color:var(--accent); padding:.35rem .7rem; border-radius:999px; font-size:.9rem; }