:root {
  --bg: #fafafa;
  --fg: #1a1a1a;
  --muted: #6b7280;
  --accent: #0a58ca;
  --card: #ffffff;
  --border: #e5e7eb;
  --risk-bg: #fef2f2;
  --risk-fg: #b91c1c;
  --risk-border: #fecaca;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  line-height: 1.75;
  -webkit-text-size-adjust: 100%;
}
.wrap { max-width: 780px; margin: 0 auto; padding: 24px 18px 64px; }
.hero h1 { font-size: 1.7rem; margin: 0.4em 0 0.2em; }
.muted { color: var(--muted); font-size: 0.92rem; }
.crumb { margin-bottom: 12px; font-size: 0.92rem; }
.crumb a, .plist a, .clink a { color: var(--accent); text-decoration: none; }
.crumb a:hover, .plist a:hover, .clink a:hover { text-decoration: underline; }
.group { margin-top: 30px; }
.group h2 { font-size: 1.18rem; border-left: 4px solid var(--accent); padding-left: 10px; margin-bottom: 10px; }
.plist { list-style: none; margin: 0; padding: 0; }
.plist li {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 10px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}
.plist .date { color: var(--muted); font-size: 0.85rem; white-space: nowrap; }
.post .meta { color: var(--muted); font-size: 0.9rem; }
.tag {
  display: inline-block;
  background: #e8f0fe;
  color: var(--accent);
  border-radius: 999px;
  padding: 2px 12px;
  font-size: 0.82rem;
  margin-right: 8px;
}
.post h1 { font-size: 1.55rem; line-height: 1.4; margin: 0.3em 0 0.8em; }
.body h2 { font-size: 1.2rem; margin-top: 1.8em; border-bottom: 1px solid var(--border); padding-bottom: 6px; }
.body h3 { font-size: 1.05rem; margin: 1.2em 0 0.4em; }
.body p { margin: 0.7em 0; }
.body ul, .body ol { padding-left: 1.4em; }
.body blockquote {
  margin: 1em 0;
  padding: 8px 14px;
  border-left: 4px solid var(--border);
  color: var(--muted);
  background: #f3f4f6;
  border-radius: 0 8px 8px 0;
}
.body code { background: #f3f4f6; padding: 2px 6px; border-radius: 6px; font-size: 0.9em; }
.body pre { background: #111827; color: #e5e7eb; padding: 14px; border-radius: 10px; overflow-x: auto; }
.body pre code { background: none; padding: 0; }
.body table { border-collapse: collapse; width: 100%; margin: 1em 0; font-size: 0.92rem; }
.body th, .body td { border: 1px solid var(--border); padding: 8px 10px; text-align: left; }
.body img { max-width: 100%; border-radius: 8px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  margin: 14px 0;
}
.card h3 { margin: 0 0 6px; font-size: 1.02rem; }
.cbody p { margin: 0.5em 0; }
.clink { margin: 8px 0 0; font-size: 0.92rem; }
.risk {
  margin: 10px 0 0;
  background: var(--risk-bg);
  color: var(--risk-fg);
  border: 1px solid var(--risk-border);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 0.9rem;
}
.summary { color: var(--muted); }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--border); color: var(--muted); font-size: 0.85rem; text-align: center; }

/* ---- 四板块信息流 ---- */
.secnav { margin: 12px 0 4px; display: flex; flex-wrap: wrap; gap: 8px; }
.secnav a {
  color: var(--accent);
  text-decoration: none;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 999px;
  padding: 4px 14px;
  font-size: 0.9rem;
}
.secnav a:hover { border-color: var(--accent); }
.fitem {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px;
  margin: 10px 0;
}
.fhead { display: flex; gap: 10px; align-items: baseline; font-size: 0.82rem; color: var(--muted); }
.ftime { white-space: nowrap; }
.fsrc { color: var(--accent); }
.fitem h3 { margin: 4px 0 6px; font-size: 1.0rem; line-height: 1.5; }
.fbody { margin: 0.4em 0; font-size: 0.94rem; }
.fitem .risk { margin-top: 8px; }
.fitem .clink { margin-top: 8px; }
.more { margin: 10px 2px 0; font-size: 0.92rem; }
.more a { color: var(--accent); text-decoration: none; }
.more a:hover { text-decoration: underline; }
.dayhead { font-size: 1.05rem; color: var(--muted); margin: 26px 0 4px; }