:root {
  --bg: #ffffff;
  --ink: #111111;
  --ink-2: #3a3a3a;
  --muted: #8a8a8a;
  --rule: #e6e6e6;
  --link-line: #c4c4c4;
  --quote-bg: #f6f6f4;
  --serif: "Songti SC", "STSong", "Source Han Serif SC", "Noto Serif CJK SC", "Noto Serif SC", serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111111;
    --ink: #ecebe8;
    --ink-2: #c9c8c4;
    --muted: #8c8b87;
    --rule: #2a2a2a;
    --link-line: #555555;
    --quote-bg: #1a1a1a;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.85;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

.page {
  max-width: 36rem;
  margin: 0 auto;
  padding: calc(env(safe-area-inset-top) + 40px) 20px calc(env(safe-area-inset-bottom) + 56px);
}

a { color: inherit; text-decoration: underline; text-decoration-color: var(--link-line); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--ink); }

/* 刊头 */
.masthead { margin: 0 0 6px; }
.name {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 30px;
  letter-spacing: 0.14em;
  line-height: 1.2;
  margin: 0;
}
.name a { text-decoration: none; }
.dateline {
  margin: 0 0 28px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--ink);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.lede {
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.75;
  margin: 0 0 8px;
}

/* 栏目 */
section { margin-top: 44px; }
section h2 {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--muted);
  margin: 0 0 4px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--rule);
}

.news h3 {
  font-size: 19px;
  font-weight: 650;
  line-height: 1.5;
  margin: 30px 0 8px;
}
.news p { margin: 0 0 12px; color: var(--ink-2); }
.news h3 + p { color: var(--ink); }

.brief ul { list-style: none; padding: 0; margin: 16px 0 0; }
.brief li {
  position: relative;
  padding-left: 16px;
  margin: 0 0 12px;
  color: var(--ink-2);
}
.brief li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.9em;
  width: 6px; height: 1px;
  background: var(--muted);
}

/* 主阅读 */
.reading { margin-top: 56px; }
.reading h2 { color: var(--ink); border-bottom-color: var(--ink); }
.reading h3 {
  font-family: var(--serif);
  font-size: 25px;
  font-weight: 700;
  line-height: 1.45;
  margin: 26px 0 6px;
}
.reading p, .reading li {
  font-family: var(--serif);
  font-size: 17.5px;
  line-height: 1.9;
}
.reading p { margin: 0 0 16px; }
.reading h3 + p { font-family: var(--sans); font-size: 14px; color: var(--muted); margin-bottom: 22px; }
.reading h3 + p strong { color: var(--ink); font-weight: 600; }

blockquote {
  margin: 22px 0;
  padding: 14px 18px;
  background: var(--quote-bg);
  border-left: 2px solid var(--ink);
}
blockquote p { margin: 0 !important; color: var(--ink); }
blockquote p + p { margin-top: 10px !important; }

.cta { margin: 26px 0 8px !important; }
.cta a {
  display: block;
  text-align: center;
  font-family: var(--sans);
  font-size: 16px;
  letter-spacing: 0.08em;
  text-decoration: none;
  padding: 13px 16px;
  border: 1px solid var(--ink);
}
.cta a:active { background: var(--ink); color: var(--bg); }

.note, .reading .note { font-family: var(--sans); font-size: 14px; color: var(--muted); }

figure { margin: 24px -20px; }
figure img { display: block; width: 100%; height: auto; background: var(--quote-bg); }
figcaption { font-family: var(--sans); font-size: 13px; line-height: 1.6; color: var(--muted); padding: 8px 20px 0; }

hr { border: 0; border-top: 1px solid var(--rule); margin: 40px 0; }

/* 翻页 */
.issue-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 64px;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
  font-size: 14px;
  color: var(--muted);
}
.issue-nav a { text-decoration: none; }

/* 往期 */
.month { font-size: 12px; font-weight: 600; letter-spacing: 0.24em; color: var(--muted); margin: 36px 0 6px; }
.archive { list-style: none; padding: 0; margin: 0; }
.archive li { border-bottom: 1px solid var(--rule); }
.archive a { display: flex; gap: 16px; padding: 14px 0; text-decoration: none; align-items: baseline; }
.a-date { flex: 0 0 5.5em; font-size: 14px; color: var(--muted); font-variant-numeric: tabular-nums; }
.a-title { font-family: var(--serif); font-size: 17px; }

@media (min-width: 640px) {
  .page { padding-top: 72px; }
  figure { margin-left: 0; margin-right: 0; }
  figcaption { padding-left: 0; padding-right: 0; }
}

/* 来源链接更安静 */
.news a, .brief a { color: var(--muted); text-decoration-color: var(--rule); }
.news a:hover, .brief a:hover { color: var(--ink); }