body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang HK", "Noto Sans TC", sans-serif;
  max-width: 760px;
  margin: 2rem auto;
  padding: 0 1rem 3rem;
  line-height: 1.65;
  color: #1e293b;
}
h1 { font-size: 1.5rem; }
h2 { font-size: 1.08rem; margin-top: 1.6rem; }
h3 { font-size: 1rem; margin-top: 1.2rem; }
.muted { color: #64748b; font-size: 0.9rem; }
.box {
  background: #fffbeb;
  border: 1px solid #fcd34d;
  border-radius: 12px;
  padding: 14px 16px;
  margin: 1rem 0;
}
.green {
  background: #ecfdf5;
  border: 1px solid #6ee7b7;
  border-radius: 12px;
  padding: 14px 16px;
  margin: 1rem 0;
}
nav a { margin-right: 14px; }
footer {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid #e2e8f0;
  font-size: 0.85rem;
  color: #64748b;
}
ul, ol { padding-left: 1.25rem; }
li { margin: 0.35rem 0; }
label { display: block; margin: 0.75rem 0 0.35rem; font-weight: 600; }
input[type="text"], input[type="tel"], input[type="email"], textarea {
  width: 100%;
  max-width: 420px;
  padding: 10px 12px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font-size: 1rem;
}
button, .btn {
  display: inline-block;
  margin-top: 12px;
  padding: 10px 16px;
  background: #059669;
  color: #fff;
  border: 0;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
}
button:disabled { background: #94a3b8; cursor: not-allowed; }
.consent {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin: 1rem 0;
  font-weight: 400;
}
details { margin: 1rem 0; }
summary { cursor: pointer; font-weight: 600; }
.ok { color: #047857; }
.err { color: #b91c1c; }