:root {
  --bg: #fffdf8;
  --bg-soft: #f7f2e9;
  --bg-code: #f3eee4;
  --fg: #2c2723;
  --fg-soft: #6b6157;
  --fg-mute: #9a9086;
  --line: #e7ded1;
  --accent: #a85a2c;
  --accent-soft: #f6ece4;
  --maxw: 44rem;
  --radius: 4px;
  --serif: Georgia, "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", SimSun, serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1815;
    --bg-soft: #221f1b;
    --bg-code: #26221d;
    --fg: #ece5dc;
    --fg-soft: #b3a99d;
    --fg-mute: #867c71;
    --line: #35302a;
    --accent: #d98b52;
    --accent-soft: #2a211a;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  font-size: 17px;
  line-height: 1.95;
}
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 1.25rem; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { max-width: 100%; height: auto; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: .5rem; top: .5rem; background: var(--fg); color: var(--bg); padding: .5rem .9rem; z-index: 20; }
.dot { color: var(--fg-mute); margin: 0 .4em; }

/* ---------- 站头 ---------- */
.masthead { border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--bg); z-index: 10; }
.masthead-in { display: flex; align-items: baseline; gap: 1rem 1.4rem; flex-wrap: wrap; padding: .95rem 0 .85rem; }
.brand { display: inline-flex; align-items: baseline; gap: .55rem; color: inherit; }
.brand:hover { text-decoration: none; }
.brand b { font-family: var(--serif); font-size: 1.22rem; font-weight: 600; letter-spacing: .01em; }
.brand i { font-style: normal; font-size: .75rem; color: var(--fg-mute); }
.site-nav ul { display: flex; flex-wrap: wrap; gap: .1rem 1.05rem; list-style: none; margin: 0; padding: 0; }
.site-nav a { color: var(--fg-soft); font-size: .9rem; border-bottom: 1px solid transparent; padding-bottom: .1rem; }
.site-nav a:hover { color: var(--fg); text-decoration: none; }
.site-nav a.on { color: var(--accent); border-bottom-color: var(--accent); }

.crumb { font-size: .8rem; color: var(--fg-mute); padding-top: 1.2rem; }
.crumb a { color: var(--fg-mute); }
.crumb span { margin: 0 .4em; }

main { padding: 2rem 1.25rem 4rem; }
h1, h2, h3, h4 { line-height: 1.45; font-weight: 650; }
h1 { font-family: var(--serif); font-size: 1.75rem; margin: .2rem 0 1rem; font-weight: 600; }
h2 { font-size: 1.24rem; margin: 2.4rem 0 .7rem; font-family: var(--serif); font-weight: 600; }
h3 { font-size: 1.06rem; margin: 1.9rem 0 .5rem; }
h4 { font-size: .98rem; margin: 1.4rem 0 .4rem; color: var(--fg-soft); }
p { margin: 0 0 1.15em; }
.lead { font-size: 1.05rem; color: var(--fg-soft); }

/* ---------- 首页 ---------- */
.hero { padding: .6rem 0 2rem; border-bottom: 1px solid var(--line); margin-bottom: 2rem; }
.hero h1 { font-size: 1.95rem; margin-bottom: .85rem; }
.hero-meta { font-size: .82rem; color: var(--fg-mute); margin: 0; }
.notice { background: var(--accent-soft); border-left: 3px solid var(--accent); padding: .8rem 1rem; font-size: .9rem; color: var(--fg-soft); }
.notice b { color: var(--accent); }
.sec { font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--fg-mute); font-weight: 600; margin: 0 0 .9rem; }
.sister { font-size: .88rem; color: var(--fg-soft); border: 1px dashed var(--line); border-radius: var(--radius); padding: .7rem .95rem; margin: 0 0 2.4rem; }

/* ---------- 时间线 ---------- */
.tl { margin-bottom: 2.8rem; }
.tl-month { font-family: var(--serif); font-size: 1.02rem; color: var(--fg-mute); margin: 1.8rem 0 .4rem; padding-bottom: .3rem; border-bottom: 1px solid var(--line); letter-spacing: .02em; }
.tl-month:first-child { margin-top: 0; }
.tl-item { display: grid; grid-template-columns: 4.2rem 1fr; gap: 0 1rem; padding: .8rem 0; border-bottom: 1px dashed var(--line); }
.tl-item:last-child { border-bottom: 0; }
.tl-day { font-size: .78rem; color: var(--fg-mute); padding-top: .28rem; font-variant-numeric: tabular-nums; }
.tl-day b { display: block; font-size: 1.15rem; color: var(--fg); font-weight: 600; line-height: 1.1; }
.tl-body a { color: inherit; font-weight: 600; }
.tl-body a:hover { color: var(--accent); text-decoration: none; }
.tl-desc { font-size: .9rem; color: var(--fg-soft); margin: .2rem 0 .3rem; }
.tl-tags { font-size: .76rem; color: var(--fg-mute); }
.tl-tags em { font-style: normal; border: 1px solid var(--line); border-radius: 99px; padding: .02rem .45rem; margin-right: .25rem; }

/* ---------- 主题块 ---------- */
.theme-grid { display: grid; gap: 1.5rem 2rem; grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr)); margin-bottom: 2.6rem; }
.theme h3 { margin: 0 0 .35rem; font-size: 1rem; font-family: var(--serif); }
.theme p { font-size: .84rem; color: var(--fg-mute); margin: 0 0 .5rem; line-height: 1.6; }
.theme ul { list-style: none; margin: 0 0 .5rem; padding: 0; font-size: .88rem; }
.theme li { padding: .22rem 0; border-top: 1px dashed var(--line); }
.theme li a { color: var(--fg-soft); }
.more { font-size: .84rem; }

.btn { display: inline-block; padding: .5rem 1.05rem; border: 1px solid var(--accent); border-radius: var(--radius); background: var(--accent); color: #fff; font-size: .9rem; }
.btn:hover { text-decoration: none; opacity: .9; color: #fff; }
.btn.ghost { background: transparent; color: var(--accent); }
.btn.ghost:hover { background: var(--accent-soft); }
.more-row { display: flex; gap: .7rem; flex-wrap: wrap; margin-top: 1.2rem; }

/* ---------- 列表页头 ---------- */
.list-head { padding: .4rem 0 1.4rem; border-bottom: 1px solid var(--line); margin-bottom: .5rem; }
.list-head h1 { margin-bottom: .45rem; }
.list-head .count { font-size: .8rem; color: var(--fg-mute); margin: 0; }

/* ---------- 单篇 ---------- */
.diary-head { margin-bottom: 1.8rem; }
.kicker { font-size: .78rem; letter-spacing: .06em; margin: 0 0 .45rem; }
.kicker a { color: var(--accent); font-weight: 600; }
.diary-meta { font-size: .82rem; color: var(--fg-mute); margin: .2rem 0 0; }
.diary-meta em { font-style: normal; border: 1px solid var(--line); border-radius: 99px; padding: .02rem .5rem; font-size: .76rem; margin-right: .25rem; }
.mood { display: inline-block; background: var(--bg-soft); border-radius: 99px; padding: .05rem .55rem; font-size: .78rem; color: var(--fg-soft); }

.prose ul, .prose ol { padding-left: 1.5rem; margin: 0 0 1.2em; }
.prose li { margin: .32em 0; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2.2rem 0; }
.prose blockquote { margin: 1.4rem 0; padding: .1rem 0 .1rem 1.05rem; border-left: 3px solid var(--line); color: var(--fg-soft); font-size: .96rem; }
.prose blockquote p:last-child { margin-bottom: 0; }
code { font-family: "SFMono-Regular", Consolas, Menlo, "Courier New", monospace; font-size: .87em; background: var(--bg-code); padding: .12em .38em; border-radius: 4px; }
pre.code { background: var(--bg-code); border: 1px solid var(--line); border-radius: var(--radius); padding: .95rem 1.1rem; overflow-x: auto; line-height: 1.7; margin: 1.4rem 0; }
pre.code code { background: none; padding: 0; font-size: .84rem; }
.table-wrap { overflow-x: auto; margin: 1.5rem 0; }
table { border-collapse: collapse; width: 100%; font-size: .9rem; }
th, td { border: 1px solid var(--line); padding: .5rem .7rem; text-align: left; vertical-align: top; }
th { background: var(--bg-soft); }

/* 就医/财务等敏感段的醒目提示 */
.caution { border: 1px solid var(--accent); background: var(--accent-soft); border-radius: var(--radius); padding: .8rem 1rem; font-size: .9rem; margin: 1.6rem 0; }
.caution b { color: var(--accent); }
.ai-notice { border: 1px solid var(--line); border-left: 3px solid var(--accent); background: var(--bg-soft); border-radius: 0 var(--radius) var(--radius) 0; padding: .7rem 1rem; font-size: .87rem; color: var(--fg-soft); margin-top: 2rem; }
.ai-notice b { color: var(--accent); }
.diary-foot { font-size: .8rem; color: var(--fg-mute); border-top: 1px dashed var(--line); padding-top: 1rem; margin-top: 1.8rem; }
.diary-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1.4rem; }
.diary-nav a { border: 1px solid var(--line); border-radius: var(--radius); padding: .75rem .95rem; font-size: .9rem; display: block; }
.diary-nav a:hover { border-color: var(--accent); text-decoration: none; }
.diary-nav span { display: block; font-size: .75rem; color: var(--fg-mute); }
.diary-nav .next { text-align: right; }
.page h1 { margin-bottom: 1.5rem; }

.nf { padding: 3rem 0; }
.nf h1 { font-size: 3.2rem; color: var(--accent); margin-bottom: .3rem; }

/* ---------- 页脚 ---------- */
.site-foot { border-top: 1px solid var(--line); background: var(--bg-soft); padding: 2.1rem 0 2.5rem; font-size: .84rem; color: var(--fg-mute); }
.foot-links { display: flex; flex-wrap: wrap; gap: .35rem 1.2rem; margin-bottom: .9rem; }
.foot-links a { color: var(--fg-soft); }
.site-foot p { margin: 0 0 .5rem; }
.foot-beian a { color: var(--fg-soft); }

@media (max-width: 640px) {
  body { font-size: 16px; }
  h1 { font-size: 1.5rem; }
  .hero h1 { font-size: 1.62rem; }
  .masthead-in { padding: .7rem 0; }
  .site-nav { width: 100%; }
  main { padding-top: 1.4rem; }
  .tl-item { grid-template-columns: 1fr; gap: .1rem; }
  .tl-day { display: flex; gap: .4rem; align-items: baseline; padding-top: 0; }
  .tl-day b { font-size: 1rem; }
  .diary-nav { grid-template-columns: 1fr; }
  .diary-nav .next { text-align: left; }
}
@media print { .masthead, .site-foot, .diary-nav { display: none; } body { font-size: 11pt; } }