:root {
  --paper: #FBF7EF;
  --paper-2: #F5EEE1;
  --card: #FFFDF8;
  --ink: #2A2420;
  --ink-2: #5F5449;
  --ink-3: #93857A;
  --line: #E6DACA;
  --line-2: #D8C9B4;
  --accent: #C0562B;
  --accent-soft: #F3E0D4;
  --gold: #B98A2E;
  --olive: #6F8046;
  --serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", "SimSun", Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

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

body, .wrap { max-width: 100%; }

body {
  margin: 0;
  background:
    radial-gradient(1100px 520px at 8% -12%, #F6E9D8 0%, rgba(246, 233, 216, 0) 65%),
    radial-gradient(900px 460px at 102% 4%, #F0E7D6 0%, rgba(240, 231, 214, 0) 60%),
    var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 22px; }

/* ---------- 顶栏 ---------- */
.topbar {
  border-bottom: 1px solid var(--line);
  background: rgba(251, 247, 239, .88);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 30;
}
.topbar-in { display: flex; align-items: center; gap: 22px; height: 46px; }
.brand-mini {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--serif); font-size: 15px; letter-spacing: .16em; color: var(--ink);
}
.mark {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(192, 86, 43, .14);
  display: inline-block;
}
.topnav { display: flex; gap: 4px; margin-left: 6px; }
.topnav a {
  font-size: 13.5px; color: var(--ink-2); padding: 5px 11px; border-radius: 20px;
  transition: background .18s, color .18s;
}
.topnav a:hover { background: var(--paper-2); color: var(--ink); }
.topnav a.on { background: var(--ink); color: #FBF7EF; }
.topdate { margin-left: auto; font-size: 12px; letter-spacing: .1em; color: var(--ink-3); font-variant-numeric: tabular-nums; }

/* ---------- 刊头 ---------- */
.masthead { padding: 34px 0 20px; }
.masthead-in { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.logo { margin: 0; display: flex; align-items: baseline; gap: 12px; font-weight: 400; }
.logo-cn {
  font-family: var(--serif); font-size: 46px; line-height: 1.05;
  letter-spacing: .1em; color: var(--ink);
}
.logo-slash {
  font-family: var(--serif); font-size: 30px; color: var(--accent); letter-spacing: 0;
}
.tagline { margin: 10px 0 0; color: var(--ink-2); font-size: 14px; letter-spacing: .02em; }
.stamp { text-align: right; }
.stamp-line {
  display: block; font-size: 12px; color: var(--accent);
  border: 1px solid var(--accent-soft); background: #FCF1E9;
  padding: 3px 10px; border-radius: 3px; letter-spacing: .06em;
}
.stamp-sub { display: block; margin-top: 7px; font-size: 10.5px; letter-spacing: .22em; color: var(--ink-3); }

/* ---------- 头条区 ---------- */
.hero { border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line); padding: 26px 0 30px; }
.hero-head { display: flex; align-items: flex-end; gap: 40px; flex-wrap: wrap; margin-bottom: 22px; }
.kicker { margin: 0 0 10px; font-size: 11.5px; letter-spacing: .18em; color: var(--accent); }
.hero-title {
  margin: 0; font-family: var(--serif); font-weight: 400;
  font-size: 30px; line-height: 1.3; letter-spacing: .02em;
}
.hero-lead {
  margin: 0 0 4px; max-width: 430px; font-size: 13.5px; color: var(--ink-2);
  line-height: 1.85; border-left: 2px solid var(--line-2); padding-left: 16px;
}

.top-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.top-card {
  display: block; background: var(--card); border: 1px solid var(--line);
  border-radius: 4px; padding: 18px 18px 16px;
  position: relative; overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.top-card::before {
  content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 3px;
  background: var(--line-2);
}
.top-card.tier-hot::before { background: linear-gradient(90deg, #C0562B, #E08A5C); }
.top-card.tier-warm::before { background: linear-gradient(90deg, #B98A2E, #D9B36B); }
.top-card.tier-cool::before { background: linear-gradient(90deg, #6F8046, #9CAC72); }
.top-card.tier-mild::before { background: linear-gradient(90deg, #A08C77, #C4B4A2); }
.top-card:hover { transform: translateY(-2px); box-shadow: 0 12px 26px -18px rgba(70, 50, 30, .5); border-color: var(--line-2); }
.top-card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.rank-big {
  font-family: var(--serif); font-size: 13px; letter-spacing: .1em;
  color: var(--ink-3); font-variant-numeric: tabular-nums;
}
.score-pill {
  font-size: 12px; font-variant-numeric: tabular-nums; letter-spacing: .04em;
  padding: 2px 8px; border-radius: 3px; color: var(--ink);
  background: var(--paper-2); border: 1px solid var(--line);
}
.tier-hot .score-pill { color: #A03F1C; background: #FAEDE5; border-color: #EFD3C3; }
.tier-warm .score-pill { color: #8E6816; background: #F8F0DC; border-color: #EBD9B4; }
.tier-cool .score-pill { color: #566436; background: #EFF3E4; border-color: #D8E0C4; }
.top-title {
  margin: 0 0 8px; font-family: var(--serif); font-weight: 400;
  font-size: 18.5px; line-height: 1.5; letter-spacing: .01em;
  overflow-wrap: anywhere;
  display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden;
}
.top-brief {
  margin: 0 0 14px; font-size: 13px; color: var(--ink-2); line-height: 1.75;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.top-meta, .feed-meta { display: flex; align-items: center; gap: 7px; font-size: 11.5px; color: var(--ink-3); flex-wrap: wrap; }
.tag {
  color: var(--accent); border: 1px solid var(--accent-soft);
  background: #FCF3EC; padding: 1px 7px; border-radius: 2px; letter-spacing: .04em;
}
.dot { color: var(--line-2); }

/* ---------- 主体布局 ---------- */
.layout { display: grid; grid-template-columns: minmax(0, 1fr) 286px; gap: 44px; padding-top: 26px; padding-bottom: 56px; }
.col-main { min-width: 0; }

.toolbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap; padding-bottom: 14px; border-bottom: 1px solid var(--ink);
}
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip {
  font-size: 12.5px; color: var(--ink-2); padding: 4px 11px;
  border: 1px solid var(--line); border-radius: 20px; background: transparent;
  transition: all .16s;
}
.chip i { font-style: normal; font-size: 10.5px; color: var(--ink-3); margin-left: 5px; }
.chip:hover { border-color: var(--line-2); background: var(--paper-2); }
.chip.on { background: var(--ink); border-color: var(--ink); color: #FBF7EF; }
.chip.on i { color: #D9C9B6; }
.search { display: flex; align-items: center; border: 1px solid var(--line); border-radius: 22px; overflow: hidden; background: var(--card); }
.search input {
  border: 0; background: transparent; padding: 6px 12px; font-size: 13px; width: 172px;
  color: var(--ink); outline: none; font-family: var(--sans);
}
.search button {
  border: 0; background: transparent; color: var(--accent); font-size: 12.5px;
  padding: 6px 12px; cursor: pointer; border-left: 1px solid var(--line); font-family: var(--sans);
}
.search button:hover { background: var(--paper-2); }

/* 列表 */
.feed { list-style: none; margin: 0; padding: 0; }
.feed-item {
  display: grid; grid-template-columns: 40px minmax(0, 1fr) 58px;
  gap: 14px; align-items: start;
  padding: 20px 0; border-bottom: 1px solid var(--line);
}
.rank {
  font-family: var(--serif); font-size: 13px; color: var(--ink-3);
  padding-top: 4px; font-variant-numeric: tabular-nums;
}
.feed-title {
  font-family: var(--serif); font-size: 17.5px; line-height: 1.55;
  color: var(--ink); display: -webkit-box; -webkit-line-clamp: 3;
  -webkit-box-orient: vertical; overflow: hidden; transition: color .16s;
  overflow-wrap: anywhere;
}
.feed-title:hover { color: var(--accent); }
.feed-brief {
  margin: 7px 0 9px; font-size: 13px; color: var(--ink-2); line-height: 1.75;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.pin {
  font-size: 10.5px; color: var(--olive); border: 1px solid #DDE4CB;
  background: #F2F5E9; padding: 1px 6px; border-radius: 2px;
}
.score {
  text-align: center; font-size: 13px; font-variant-numeric: tabular-nums;
  color: var(--ink-2); border: 1px solid var(--line); border-radius: 3px;
  padding: 3px 0; margin-top: 3px; background: var(--card);
}
.score.tier-hot { color: #A03F1C; border-color: #EFD3C3; background: #FAEDE5; }
.score.tier-warm { color: #8E6816; border-color: #EBD9B4; background: #F8F0DC; }
.score.tier-cool { color: #566436; border-color: #D8E0C4; background: #EFF3E4; }

.empty { padding: 60px 0; text-align: center; }
.empty-title { font-family: var(--serif); font-size: 20px; margin: 0 0 8px; }
.empty-sub { color: var(--ink-2); font-size: 13.5px; margin: 0 0 18px; }
.empty-dates { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }

.daybar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; padding-top: 22px; }
.daybar-label { font-size: 11.5px; letter-spacing: .12em; color: var(--ink-3); margin-right: 4px; }
.day {
  font-size: 12.5px; color: var(--ink-2); padding: 3px 9px;
  border-bottom: 1px solid var(--line); font-variant-numeric: tabular-nums;
}
.day:hover { color: var(--accent); border-color: var(--accent); }
.day.on { color: var(--ink); border-color: var(--ink); }

/* 侧栏 */
.col-side { display: flex; flex-direction: column; gap: 18px; }
.panel {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 4px; padding: 16px 16px 14px;
}
.panel h4 {
  margin: 0 0 12px; font-size: 11.5px; letter-spacing: .16em;
  color: var(--ink-3); font-weight: 500;
}
.stat-row {
  display: flex; align-items: baseline; justify-content: space-between;
  padding: 5px 0; border-bottom: 1px dashed var(--line); font-size: 13px;
}
.stat-row:last-of-type { border-bottom: 0; }
.stat-row span { color: var(--ink-2); font-size: 12.5px; }
.stat-row b { font-family: var(--serif); font-size: 17px; font-weight: 400; font-variant-numeric: tabular-nums; }
.panel-foot { margin: 10px 0 0; font-size: 11.5px; color: var(--ink-3); line-height: 1.7; }
.api-card p { margin: 0 0 12px; font-size: 12.5px; color: var(--ink-2); line-height: 1.8; }
.api-card code {
  display: block; font-size: 12px; color: var(--accent); background: var(--paper-2);
  border: 1px solid var(--line); border-radius: 3px; padding: 6px 9px; margin-bottom: 12px;
  font-family: ui-monospace, "SF Mono", Consolas, monospace; word-break: break-all;
}
.btn-ghost { display: inline-block; font-size: 12.5px; color: var(--accent); border-bottom: 1px solid var(--accent-soft); }
.btn-ghost:hover { border-color: var(--accent); }
.slots { display: flex; gap: 6px; flex-wrap: wrap; }
.slot {
  font-size: 12px; padding: 2px 9px; border-radius: 3px; color: var(--ink-2);
  background: var(--paper-2); border: 1px solid var(--line); font-variant-numeric: tabular-nums;
}

/* 公告 */
.announce {
  border: 1px solid var(--accent-soft); background: #FCF3EC;
  color: #8A3F1F; font-size: 12.5px; padding: 9px 14px; border-radius: 3px;
  margin-bottom: 18px;
}

/* ---------- 页脚 ---------- */
.site-footer { border-top: 1px solid var(--line); background: rgba(245, 238, 225, .55); padding: 22px 0 26px; }
.footer-in { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-main { font-size: 12.5px; color: var(--ink-2); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.footer-brand { font-family: var(--serif); letter-spacing: .06em; color: var(--ink); }
.footer-sep { color: var(--line-2); }
.footer-note { color: var(--ink-3); letter-spacing: .03em; }
.footer-links { display: flex; gap: 16px; font-size: 12.5px; color: var(--ink-3); }
.footer-links a:hover { color: var(--accent); }

/* ---------- 内页 ---------- */
.page { padding: 40px 0 60px; }
.page-head { border-bottom: 2px solid var(--ink); padding-bottom: 16px; margin-bottom: 28px; }
.page-head h2 { margin: 0; font-family: var(--serif); font-weight: 400; font-size: 30px; letter-spacing: .04em; }
.page-head p { margin: 8px 0 0; color: var(--ink-2); font-size: 13.5px; }
.prose { max-width: 720px; font-size: 15px; line-height: 2; color: var(--ink); }
.prose p { margin: 0 0 18px; }
.prose a { color: var(--accent); border-bottom: 1px solid var(--accent-soft); }

.arch-list { list-style: none; margin: 0; padding: 0; }
.arch-item {
  display: flex; align-items: baseline; gap: 16px; padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.arch-date { font-family: var(--serif); font-size: 17px; width: 130px; font-variant-numeric: tabular-nums; }
.arch-count { font-size: 12.5px; color: var(--ink-3); }
.arch-max { margin-left: auto; font-size: 12.5px; color: var(--accent); }
.arch-item:hover .arch-date { color: var(--accent); }

.code-block {
  background: #2A2420; color: #F3E9DC; border-radius: 4px; padding: 16px 18px;
  font-family: ui-monospace, "SF Mono", Consolas, monospace; font-size: 12.5px;
  line-height: 1.8; overflow-x: auto; margin: 0 0 20px;
}
.code-block .k { color: #E0A87A; }
.doc-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.doc-card { background: var(--card); border: 1px solid var(--line); border-radius: 4px; padding: 16px 18px; }
.doc-card h4 { margin: 0 0 6px; font-size: 14px; font-family: var(--serif); font-weight: 400; }
.doc-card .ep { font-size: 12px; color: var(--accent); font-family: ui-monospace, Consolas, monospace; margin-bottom: 8px; }
.doc-card p { margin: 0; font-size: 12.5px; color: var(--ink-2); line-height: 1.8; }
.badge-get { font-size: 10px; background: #EFF3E4; color: #566436; padding: 1px 5px; border-radius: 2px; margin-right: 6px; }

@media (max-width: 960px) {
  .layout { grid-template-columns: minmax(0, 1fr); gap: 30px; }
  .top-grid { grid-template-columns: minmax(0, 1fr); }
  .doc-grid { grid-template-columns: minmax(0, 1fr); }
  .logo-cn { font-size: 36px; }
  .hero-title { font-size: 25px; }
  .hero-lead { border-left: 0; padding-left: 0; }
}

@media (max-width: 640px) {
  .wrap { padding: 0 16px; }
  .topnav { gap: 0; }
  .topnav a { padding: 5px 8px; font-size: 12.5px; }
  .topdate { display: none; }
  .masthead { padding: 22px 0 14px; }
  .logo-cn { font-size: 30px; }
  .logo-slash { font-size: 22px; }
  .stamp { display: none; }
  .hero { padding: 18px 0 22px; }
  .hero-title { font-size: 21px; }
  .top-title { font-size: 17px; }
  .feed-item { grid-template-columns: 26px minmax(0, 1fr) 46px; gap: 10px; padding: 16px 0; }
  .feed-title { font-size: 16px; }
  .search input { width: 100%; }
  .toolbar { flex-direction: column; align-items: stretch; }
  .search { width: 100%; }
  .footer-in { flex-direction: column; align-items: flex-start; }
}