:root {
  --primary: #0345bf;
  --primary-hover: #044cd0;
  --primary-light: #e8edfb;
  --accent: #1d8989;
  --bg: #ffffff;
  --card-bg: #ffffff;
  --border: #e5e8ee;
  --text: #252525;
  --muted: #6b7280;
  --footer-bg: #171717;
  --footer-text: #ffffff;
  --footer-muted: #a2a2a2;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Noto Sans TC", "Noto Sans", "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}
header {
  position: relative;
  background: linear-gradient(180deg, var(--primary-light) 0%, var(--bg) 70%);
  color: var(--primary);
  padding: 28px 16px 18px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(3, 69, 191, 0.06);
}
header::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary-hover));
}
header h1 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}
header .rule {
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  margin: 12px auto;
  border-radius: 2px;
}
header .subtitle {
  margin-top: 2px;
  font-size: 0.85rem;
  color: var(--muted);
}
nav.tabs {
  display: flex;
  justify-content: center;
  gap: 28px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
nav.tabs a {
  display: inline-block;
  padding: 14px 4px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
nav.tabs a:hover { color: var(--primary); }
nav.tabs a.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}
.controls {
  max-width: 900px;
  margin: 16px auto;
  padding: 0 16px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.controls input[type=text] {
  flex: 1 1 240px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  background: #fff;
  color: var(--text);
}
.controls select {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  background: #fff;
  color: var(--text);
}
.controls input[type=text]:focus,
.controls select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(3, 69, 191, 0.15);
}
.meta {
  max-width: 900px;
  margin: 0 auto 8px;
  padding: 0 16px;
  color: var(--muted);
  font-size: 0.9rem;
}
.list {
  max-width: 900px;
  margin: 0 auto 40px;
  padding: 0 16px;
  display: grid;
  gap: 12px;
}
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-left: 4px solid var(--cat-accent, var(--primary));
  border-radius: 12px;
  padding: 14px 16px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  transition: box-shadow 0.2s, transform 0.2s;
}
.card:hover {
  box-shadow: 0 6px 16px rgba(3, 69, 191, 0.12);
  transform: translateY(-2px);
}
.card .kind {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--cat-bg, var(--primary-light));
  color: var(--cat-accent, var(--primary));
  font-size: 0.78rem;
  font-weight: 600;
  padding: 2px 9px;
  border-radius: 999px;
  margin-bottom: 6px;
}
.card .kind .icon { font-size: 0.9rem; line-height: 1; }
.card h3 { margin: 0 0 6px; font-size: 1.05rem; transition: color 0.2s; }
.card:hover h3 { color: var(--accent); }
.card p { margin: 3px 0; font-size: 0.92rem; }
.card a.address { color: var(--primary); text-decoration: underline; }
.card a.address:hover { color: var(--primary-hover); }
.card .offer {
  margin: 8px 0 3px;
  padding: 8px 10px;
  background: var(--cat-bg, var(--primary-light));
  color: var(--cat-accent, var(--primary));
  font-size: 0.9rem;
  line-height: 1.6;
  border-radius: 8px;
}
.card .expire { font-size: 0.82rem; color: var(--muted); margin-top: 8px; }
.empty { text-align: center; color: var(--muted); padding: 40px 0; }
.disclaimer {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 16px;
  color: var(--muted);
  font-size: 0.8rem;
  text-align: center;
}
footer {
  background: var(--footer-bg);
  color: var(--footer-muted);
  text-align: center;
  font-size: 0.8rem;
  padding: 20px 16px 32px;
  margin-top: 24px;
}
footer #updated { color: var(--footer-muted); }
footer div:last-child { color: var(--footer-text); font-weight: 600; margin-top: 4px; }

/* 內文頁（加入特約 / Q&A）共用樣式 */
.content {
  max-width: 720px;
  margin: 32px auto 60px;
  padding: 0 20px;
  line-height: 1.8;
}
.content h2 {
  color: var(--primary);
  font-size: 1.1rem;
  margin: 32px 0 10px;
}
.content h2:first-child { margin-top: 0; }
.content p { margin: 8px 0; color: var(--text); }
.content .contact-box {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
  margin-top: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}
.content .contact-box p { margin: 4px 0; }
.content .contact-box a { color: var(--primary); }
.content .contact-box a:hover { color: var(--primary-hover); }
.qa-item {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
.qa-item:last-child { border-bottom: none; }
.qa-item .q {
  color: var(--primary);
  font-weight: 700;
  margin: 0 0 6px;
}
.qa-item .a { margin: 0; color: var(--text); }

@media (prefers-color-scheme: dark) {
  :root {
    --primary: #5b9bd8;
    --primary-hover: #7ab0e6;
    --primary-light: #16324d;
    --accent: #3fb8b8;
    --bg: #10161f;
    --card-bg: #1a2330;
    --border: #2c3a4c;
    --text: #eaeef3;
    --muted: #93a1b5;
    --footer-bg: #0a0e14;
    --footer-text: #eaeef3;
    --footer-muted: #93a1b5;
  }
  .controls input[type=text],
  .controls select { background: #1a2330; color: #eaeef3; }
}