:root {
  --bg: #fafaf9;
  --bg-card: #ffffff;
  --text: #1c1917;
  --muted: #78716c;
  --faint: #a8a29e;
  --line: #e7e5e4;
  --accent: #7c3aed;
  --accent-soft: #ede9fe;
  --radius: 12px;
}
html[data-theme="dark"] {
  --bg: #0c0a09;
  --bg-card: #1c1917;
  --text: #e7e5e4;
  --muted: #a8a29e;
  --faint: #57534e;
  --line: #292524;
  --accent: #a78bfa;
  --accent-soft: #2e1065;
}
@media (prefers-color-scheme: dark) {
  html[data-theme="system"] {
    --bg: #0c0a09;
    --bg-card: #1c1917;
    --text: #e7e5e4;
    --muted: #a8a29e;
    --faint: #57534e;
    --line: #292524;
    --accent: #a78bfa;
    --accent-soft: #2e1065;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 16px; }

.site-header { border-bottom: 1px solid var(--line); background: var(--bg-card); position: sticky; top: 0; z-index: 10; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.logo { font-weight: 700; font-size: 16px; color: var(--text); }
.main-nav { display: flex; gap: 18px; font-size: 14px; }
.main-nav a { color: var(--muted); }
.main-nav a.active, .main-nav a:hover { color: var(--text); text-decoration: none; }

.main { padding: 24px 16px 48px; min-height: 70vh; }

.hero { padding: 32px 0 16px; }
.hero h1 { font-size: 28px; margin: 0 0 8px; }
.hero p { color: var(--muted); margin: 0; }

.home-grid { display: grid; grid-template-columns: 1fr 320px; gap: 32px; }
@media (max-width: 860px) { .home-grid { grid-template-columns: 1fr; } }

.section-head { display: flex; align-items: baseline; justify-content: space-between; margin: 20px 0 12px; }
.section-head h1, .section-head h2 { margin: 0; font-size: 18px; }
.section-head a { font-size: 13px; }

.card-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.card.compact { padding: 10px 14px; }
.card-title { font-size: 15px; font-weight: 600; color: var(--text); }
.card-summary { color: var(--muted); font-size: 13px; margin: 4px 0 6px; }
.card-meta { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: 12px; }
.muted { color: var(--muted); }
.en-title { color: var(--faint); font-size: 13px; margin: -4px 0 10px; }

.badge {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
  border: 1px solid transparent;
}
.badge-agent { border-color: var(--line); }
.badge-accent { background: transparent; border-color: var(--accent); }

.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag { padding: 2px 10px; border: 1px solid var(--line); border-radius: 999px; font-size: 12px; color: var(--muted); }
.tag:hover { color: var(--text); }

.agent-list { list-style: none; padding: 0; margin: 0; font-size: 13px; }
.agent-list li { padding: 3px 0; }

.filter-bar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.filter-bar select, .filter-bar input {
  padding: 7px 10px; border: 1px solid var(--line); border-radius: 8px;
  background: var(--bg-card); color: var(--text); font-size: 14px;
}
.filter-bar button, .btn {
  padding: 7px 16px; border: none; border-radius: 8px; background: var(--accent);
  color: #fff; font-size: 14px; cursor: pointer;
}

.pagination { display: flex; gap: 16px; align-items: center; justify-content: center; margin-top: 24px; font-size: 14px; }

.btn-ghost { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
.btn-ghost:hover { background: var(--accent-soft); }
.btn:disabled { opacity: 0.6; cursor: default; }

.breadcrumb { font-size: 13px; color: var(--muted); margin: 8px 0 16px; }
.breadcrumb a { color: var(--muted); }

.detail h1 { font-size: 24px; margin: 0 0 6px; }
.detail .lead { font-size: 16px; color: var(--muted); }
.meta-line { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 12px 0; font-size: 13px; }
.detail section { margin-top: 20px; }
.detail section h2 { font-size: 16px; border-bottom: 1px dashed var(--line); padding-bottom: 4px; }
.prompt-block pre {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px; white-space: pre-wrap; word-break: break-word; font-size: 13px; overflow-x: auto;
}
.prompt-block button { margin-top: 8px; }
.source-line { margin-top: 24px; }
.action-row { display: flex; gap: 10px; margin-top: 20px; }
.btn { display: inline-block; }

.prose p, .prose li { color: var(--muted); }
.prose h2 { font-size: 16px; margin-top: 24px; }

.subscribe-bar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; font-size: 13px; }
.subscribe-bar input {
  padding: 6px 10px; border: 1px solid var(--line); border-radius: 8px;
  background: var(--bg-card); color: var(--text); font-size: 13px; min-width: 200px;
}
.subscribe-bar button {
  padding: 6px 14px; border: none; border-radius: 8px; background: var(--accent);
  color: #fff; font-size: 13px; cursor: pointer;
}

.site-footer { border-top: 1px solid var(--line); padding: 20px 0; font-size: 12px; color: var(--faint); }
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

@media (max-width: 600px) {
  .hero h1 { font-size: 22px; }
  .main-nav { gap: 12px; font-size: 13px; }
}