:root { color-scheme: light; --red:#e3120b; --ink:#111; --muted:#666; --line:#ddd; --bg:#fafafa; }
* { box-sizing: border-box; }
body { margin:0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; color:var(--ink); background:var(--bg); }
a { color:inherit; }
.header { position:sticky; top:0; z-index:3; background:white; border-bottom:1px solid var(--line); padding:14px 22px; display:flex; gap:18px; align-items:center; }
.logo { font-family: Georgia, serif; font-weight:700; font-size:26px; border-left:8px solid var(--red); padding-left:10px; }
.header .meta { color:var(--muted); font-size:14px; }
.layout { display:grid; grid-template-columns: 330px 1fr; min-height:calc(100vh - 62px); }
.sidebar { border-right:1px solid var(--line); background:white; padding:18px; overflow:auto; max-height:calc(100vh - 62px); position:sticky; top:62px; }
.sidebar h2 { font-size:16px; margin:18px 0 8px; color:var(--red); }
.sidebar ol { margin:0; padding-left:20px; }
.sidebar li { margin:7px 0; line-height:1.25; }
.sidebar .en { color:var(--muted); font-size:12px; display:block; }
main { padding:28px; max-width:980px; }
.issue-intro, article { background:white; border:1px solid var(--line); border-radius:12px; padding:28px; margin-bottom:28px; box-shadow:0 1px 2px rgba(0,0,0,.03); }
.section-label { color:var(--red); font-weight:700; text-transform:uppercase; letter-spacing:.04em; font-size:13px; }
h1 { font-family: Georgia, "Songti SC", serif; font-size:38px; line-height:1.12; margin:8px 0 12px; }
h2 { font-size:24px; margin:0 0 8px; }
.kicker { color:var(--red); font-weight:700; margin-top:8px; }
.subtitle { font-size:20px; color:#333; margin:8px 0 10px; }
.date, .source, .wordcount { color:var(--muted); font-size:13px; }
.article-img { margin:22px 0; }
.article-img img { display:block; max-width:100%; height:auto; border-radius:6px; background:#eee; }
.caption { color:var(--muted); font-size:13px; margin-top:6px; }
p { font-size:18px; line-height:1.78; margin:16px 0; }
h3.subhead { margin-top:30px; font-size:22px; }
details { margin-top:10px; border-left:3px solid #eee; padding-left:12px; color:#555; }
summary { cursor:pointer; color:#555; font-size:14px; }
.en-text { font-family: Georgia, serif; font-size:15px; line-height:1.55; color:#555; }
.toplink { display:inline-block; margin-top:18px; color:var(--red); font-size:14px; }
.mobile-toc-button, .mobile-toc-backdrop { display:none; }
@media (max-width: 900px) {
  .header { padding-right: 92px; }
  .mobile-toc-button { display:block; position:fixed; right:14px; bottom:18px; z-index:20; border:0; border-radius:999px; background:var(--red); color:white; font-weight:700; font-size:16px; padding:13px 18px; box-shadow:0 8px 24px rgba(0,0,0,.28); }
  .mobile-toc-backdrop { display:none; position:fixed; inset:0; z-index:10; background:rgba(0,0,0,.38); }
  body.toc-open .mobile-toc-backdrop { display:block; }
  .layout { display:block; }
  .sidebar { position:fixed; left:0; top:0; bottom:0; width:min(88vw, 390px); max-height:none; overflow:auto; z-index:15; transform:translateX(-105%); transition:transform .22s ease; border-right:1px solid var(--line); border-bottom:0; padding:18px 18px 90px; box-shadow:8px 0 28px rgba(0,0,0,.20); }
  body.toc-open .sidebar { transform:translateX(0); }
  .sidebar h1 { position:sticky; top:0; background:white; padding:6px 0 12px; z-index:1; }
  .sidebar a { display:block; padding:7px 0; }
  main { padding:14px 14px 82px; }
  h1 { font-size:30px; }
  article { padding:18px; scroll-margin-top:78px; }
}