:root {
  --panel-bg: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --link: #2563eb;
  --panel-border: #e2e8f0;
  --shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
  --page-bg: #f1f5f9;
}

@media (prefers-color-scheme: dark) {
  :root {
    --panel-bg: #0b1220;
    --text: #e2e8f0;
    --muted: #cbd5f5;
    --link: #93c5fd;
    --panel-border: #1f2937;
    --shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
    --page-bg: #0f172a;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Noto Sans', 'PingFang TC', 'Microsoft JhengHei', system-ui, -apple-system, sans-serif;
  background: var(--page-bg);
  color: var(--text);
}

main { padding: 4vh 3vw 6vh; }

.popupbasic {
  max-width: 980px;
  margin: 2vh auto;
  background: var(--panel-bg);
  border-radius: 15px;
  padding: 2px;
  opacity: 0.98;
  border: 1px solid var(--panel-border);
}

.popupinner {
  position: relative;
  border-radius: 15px;
  box-shadow: var(--shadow);
  padding: 16px;
  background: var(--panel-bg);
}

.popupiw { width: min(980px, 94vw); }

.paneltitle {
  margin: 8px;
  padding: 4px;
  font-size: 1.05rem;
  color: #800000;
}

@media (prefers-color-scheme: dark) {
  .paneltitle { color: #fef3c7; }
}

.closebtn {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 10px;
  font-size: 0.85rem;
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  color: var(--text);
  background: transparent;
  text-decoration: none;
}

a { color: var(--link); text-decoration: none; }

a:hover { text-decoration: underline; }

.muted { color: var(--muted); }

.grid { display: grid; gap: 12px; }

.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

@media (max-width: 720px) {
  .grid-2 { grid-template-columns: 1fr; }
}

.card {
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.02);
}

details { border: 1px solid var(--panel-border); border-radius: 10px; padding: 8px 10px; }

details + details { margin-top: 8px; }

summary { cursor: pointer; font-weight: 600; }

.list { padding-left: 18px; }

.header-row { display: flex; align-items: center; gap: 12px; }

.header-row img { width: 48px; height: 48px; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--panel-border);
  font-size: 0.8rem;
  margin-right: 8px;
}

.anchor-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0;
}

.anchor-nav a {
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.85rem;
}