:root {
  color-scheme: light dark;
  --bg: #f4f7fb;
  --panel: rgba(255, 255, 255, 0.88);
  --fg: #142033;
  --muted: #637083;
  --line: rgba(99, 112, 131, 0.18);
  --accent: #4758ff;
  --accent-2: #0f9d7a;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117;
    --panel: rgba(18, 24, 35, 0.9);
    --fg: #eef2ff;
    --muted: #9aa6b8;
    --line: rgba(154, 166, 184, 0.18);
    --accent: #8790ff;
    --accent-2: #20b890;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top, rgba(71, 88, 255, 0.16), transparent 36%), var(--bg);
  color: var(--fg);
  font: 15px/1.6 system-ui, "Noto Sans TC", sans-serif;
}
.shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 56px;
}
.hero {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr;
  gap: 16px;
  align-items: end;
  margin-bottom: 18px;
}
.eyebrow { margin: 0 0 8px; color: var(--accent-2); font-weight: 700; letter-spacing: .08em; text-transform: uppercase; font-size: 12px; }
h1 { margin: 0; font-size: clamp(30px, 5vw, 54px); line-height: 1.05; }
.lead { margin: 10px 0 0; color: var(--muted); max-width: 58ch; }
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 20px;
  backdrop-filter: blur(14px);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.12);
}
.auth { padding: 16px; }
.auth label { display: block; margin-bottom: 6px; font-weight: 600; }
input, select, button {
  font: inherit;
  color: inherit;
}
input, select {
  width: 100%;
  padding: 11px 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: transparent;
}
.row { display: flex; gap: 10px; margin-top: 10px; }
button {
  padding: 11px 14px;
  border-radius: 12px;
  border: 0;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}
button.ghost { background: transparent; color: var(--fg); border: 1px solid var(--line); }
.controls {
  display: grid;
  grid-template-columns: 1.5fr 0.7fr 0.7fr auto auto;
  gap: 10px;
  padding: 14px;
  align-items: center;
  margin-bottom: 18px;
}
.meta { grid-column: 1 / -1; color: var(--muted); font-size: 13px; }
.list { display: grid; gap: 14px; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 16px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.08);
}
.card-head { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 10px; color: var(--muted); font-size: 13px; }
.badge { padding: 2px 9px; border-radius: 999px; color: #fff; font-size: 12px; }
.badge.chatgpt { background: #10a37f; }
.badge.claude { background: #c96442; }
.badge.file { background: #3b82f6; }
.spacer { flex: 1; }
.body { white-space: pre-wrap; word-break: break-word; max-height: 280px; overflow: auto; }
.sub { color: var(--muted); font-size: 13px; margin-top: 8px; }
details { margin-top: 10px; }
pre { white-space: pre-wrap; word-break: break-word; padding: 12px; border-radius: 12px; background: rgba(127, 127, 127, 0.08); overflow: auto; }
a { color: var(--accent); }
.empty { padding: 48px 0; text-align: center; color: var(--muted); }
@media (max-width: 920px) {
  .hero, .controls { grid-template-columns: 1fr; }
  .row { flex-direction: column; }
}