/* Mocha · 极简、舒服。颜色只用一个强调色，深色模式跟随系统，也可手动切换。 */
:root {
  --bg: #FAFAF8; --surface: #FFFFFF; --sunk: #F2F2EE; --seg: #F0F0EC; --seg-on: #FFFFFF;
  --line: #ECECE8; --line-strong: #DCDCD6; --pill-line: #E4E4E0;
  --text: #18181B; --text-2: #3F3F46; --muted: #6B6B72; --faint: #8A8A90;
  --accent: #3F6B4F; --accent-ink: #FFFFFF; --chip: #E7EFE9; --warn: #9A4A1E;
  --on: #18181B; --on-text: #FFFFFF;
  --t1: #E6E9F4; --i1: #3A4A8C; --t2: #F3EAE1; --i2: #7A4A24; --t3: #E7EFE9; --i3: #2F5A3E;
  --t4: #E3EEF0; --i4: #2D5F66; --t5: #ECE8F2; --i5: #55427A; --t6: #F1ECE0; --i6: #6B5A23;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #141414; --surface: #1B1B1A; --sunk: #1F1F1E; --seg: #232321; --seg-on: #33332F;
    --line: #2A2A28; --line-strong: #3A3A36; --pill-line: #33332F;
    --text: #EDEDEA; --text-2: #C4C4BF; --muted: #9A9A94; --faint: #8A8A84;
    --accent: #8DB89A; --accent-ink: #141414; --chip: #223029; --warn: #E0A07A;
    --on: #EDEDEA; --on-text: #141414;
    --t1: #252A3A; --i1: #AEB8E6; --t2: #352A20; --i2: #E2B48C; --t3: #223029; --i3: #8DB89A;
    --t4: #1F3033; --i4: #8CC3C9; --t5: #2C2638; --i5: #BBA8DC; --t6: #33301F; --i6: #D6C27E;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #141414; --surface: #1B1B1A; --sunk: #1F1F1E; --seg: #232321; --seg-on: #33332F;
  --line: #2A2A28; --line-strong: #3A3A36; --pill-line: #33332F;
  --text: #EDEDEA; --text-2: #C4C4BF; --muted: #9A9A94; --faint: #8A8A84;
  --accent: #8DB89A; --accent-ink: #141414; --chip: #223029; --warn: #E0A07A;
  --on: #EDEDEA; --on-text: #141414;
  --t1: #252A3A; --i1: #AEB8E6; --t2: #352A20; --i2: #E2B48C; --t3: #223029; --i3: #8DB89A;
  --t4: #1F3033; --i4: #8CC3C9; --t5: #2C2638; --i5: #BBA8DC; --t6: #33301F; --i6: #D6C27E;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: Inter, "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  font-size: 15px; line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.muted { color: var(--muted); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- 顶栏 ---------- */
.topbar { border-bottom: 1px solid var(--line); }
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 16px; padding-bottom: 16px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 18px; letter-spacing: -0.01em; }
.logo-mark { width: 22px; height: 22px; border-radius: 7px; background: var(--accent); }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a { padding: 10px 14px; border-radius: 10px; color: var(--muted); }
.nav a[aria-current="page"] { color: var(--text); font-weight: 500; }
.icon-btn { width: 44px; height: 44px; border: 0; background: transparent; border-radius: 10px; color: var(--muted);
  display: inline-flex; align-items: center; justify-content: center; cursor: pointer; }
.icon-btn:hover { color: var(--text); background: var(--sunk); }

/* ---------- 版式 ---------- */
main.wrap { padding-top: 48px; padding-bottom: 96px; }
.cols { display: flex; flex-wrap: wrap; gap: 64px; align-items: flex-start; }
.col-main { flex: 999 1 560px; min-width: 0; }
.col-side { flex: 1 1 280px; min-width: 0; display: flex; flex-direction: column; gap: 40px; }
.page-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 20px; }
h1 { margin: 0 0 4px; font-size: 28px; line-height: 1.3; font-weight: 600; letter-spacing: -0.02em; }
.lead { margin: 0; color: var(--muted); font-size: 14px; }
.side-h { margin: 0 0 14px; font-size: 15px; font-weight: 600; display: flex; justify-content: space-between; align-items: baseline; }
.side-h a { font-size: 13px; font-weight: 400; color: var(--muted); }
.label { margin: 0 0 12px; font-size: 13px; font-weight: 500; color: var(--muted); letter-spacing: 0.04em; }

/* 分段切换与筛选 */
.seg { display: inline-flex; gap: 2px; padding: 3px; background: var(--seg); border-radius: 12px; }
.seg a { height: 32px; padding: 0 14px; border-radius: 9px; display: inline-flex; align-items: center; font-size: 13px; color: var(--muted); }
.seg a[aria-current="true"] { background: var(--seg-on); color: var(--text); font-weight: 500; box-shadow: 0 1px 2px rgba(0,0,0,.06); }
.pills { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.pill { height: 36px; padding: 0 16px; border-radius: 18px; border: 1px solid var(--pill-line); color: var(--text-2);
  display: inline-flex; align-items: center; font-size: 14px; white-space: nowrap; }
.pill[aria-current="true"] { background: var(--on); color: var(--on-text); border-color: var(--on); }
.pill:hover { color: var(--text); border-color: var(--line-strong); }
.pill[aria-current="true"]:hover { color: var(--on-text); }

/* 产品标签与图标 */
.chip { font-size: 12px; line-height: 1; padding: 5px 8px; border-radius: 6px; font-weight: 500; background: var(--chip); color: var(--accent); white-space: nowrap; }
a.chip:hover { color: var(--accent); filter: brightness(0.97); }
.tile { flex: none; display: inline-flex; align-items: center; justify-content: center; font-weight: 600; }
.tile-s { width: 36px; height: 36px; border-radius: 10px; font-size: 15px; }
.tile-m { width: 48px; height: 48px; border-radius: 13px; font-size: 19px; }
.tile-l { width: 64px; height: 64px; border-radius: 18px; font-size: 26px; }
.tc1 { background: var(--t1); color: var(--i1); } .tc2 { background: var(--t2); color: var(--i2); }
.tc3 { background: var(--t3); color: var(--i3); } .tc4 { background: var(--t4); color: var(--i4); }
.tc5 { background: var(--t5); color: var(--i5); } .tc6 { background: var(--t6); color: var(--i6); }

/* ---------- 热点列表 ---------- */
.topic { border-top: 1px solid var(--line); padding: 20px 0; }
.topic > summary { list-style: none; cursor: pointer; }
.topic > summary::-webkit-details-marker { display: none; }
.meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.meta .dot::before { content: "·"; }
.official { color: var(--accent); }
.topic-title { display: block; font-size: 18px; line-height: 1.55; font-weight: 600; letter-spacing: -0.01em; }
.topic > summary:hover .topic-title { color: var(--accent); }
.topic-body { margin-top: 12px; }
.topic-body p { margin: 0 0 16px; color: var(--text-2); }
.sources { background: var(--sunk); border-radius: 12px; padding: 4px 16px; }
.source { display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px 12px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.source .src-name { flex: none; width: 96px; color: var(--muted); font-size: 13px; }
.source .src-title { flex: 1 1 240px; min-width: 0; }
.more { display: inline-flex; align-items: center; gap: 4px; min-height: 44px; font-size: 14px; color: var(--accent); font-weight: 500; }
.empty { padding: 48px 0; color: var(--muted); border-top: 1px solid var(--line); margin: 0; }
.rule-note { border-top: 1px solid var(--line); padding-top: 20px; font-size: 13px; color: var(--muted); margin: 0; }

/* 侧栏 */
.rank-list { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 6px; }
.rank-list a { display: flex; align-items: center; gap: 12px; min-height: 52px; }
.rank-n { width: 18px; flex: none; font-size: 13px; color: var(--faint); font-variant-numeric: tabular-nums; }
.stack { flex: 1; min-width: 0; display: flex; flex-direction: column; line-height: 1.4; }
.stack b { font-size: 14px; font-weight: 500; }
.stack small { font-size: 13px; color: var(--muted); }
.card { background: var(--sunk); border-radius: 16px; padding: 22px; }
.card h2 { margin: 0 0 6px; font-size: 15px; font-weight: 600; }
.card p { margin: 0 0 14px; font-size: 14px; color: var(--text-2); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 44px; padding: 0 20px;
  border-radius: 22px; background: var(--on); color: var(--on-text); font-size: 14px; font-weight: 500; border: 1px solid var(--on); cursor: pointer; }
.btn:hover { color: var(--on-text); opacity: .9; }
.btn-ghost { background: var(--surface); color: var(--text); border: 1px solid var(--line-strong); }
.btn-ghost:hover { color: var(--text); background: var(--sunk); opacity: 1; }
.follow[aria-pressed="true"] { background: var(--sunk); color: var(--text-2); border-color: var(--pill-line); }

/* ---------- 详情页 ---------- */
.back { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: var(--muted); min-height: 44px; }
.detail h1 { font-size: 30px; line-height: 1.4; margin: 10px 0 20px; }
.summary { font-size: 16px; line-height: 1.9; color: var(--text-2); margin: 0 0 12px; }
.summary-note { font-size: 12px; color: var(--faint); margin: 0 0 40px; }
.block { margin-bottom: 48px; }
.timeline { margin: 0 0 0 5px; padding: 0; list-style: none; border-left: 1px solid var(--line-strong); }
.timeline li { position: relative; padding: 0 0 22px 24px; }
.timeline li::before { content: ""; position: absolute; left: -6px; top: 8px; width: 11px; height: 11px; border-radius: 6px;
  box-sizing: border-box; background: var(--bg); border: 1px solid var(--faint); }
.timeline li.now::before { background: var(--accent); border: 0; }
.timeline small { display: block; font-size: 13px; color: var(--muted); }
.timeline a { font-weight: 500; }
.timeline li.now a { color: var(--text); }
.pcard { border: 1px solid var(--line); border-radius: 18px; padding: 22px; background: var(--surface); }
.pcard-head { display: flex; align-items: center; gap: 14px; margin-bottom: 12px; }
.pcard-head b { display: block; font-size: 17px; font-weight: 600; }
.pcard-head small { font-size: 13px; color: var(--muted); }
.pcard p { margin: 0 0 14px; font-size: 14px; color: var(--text-2); }
.facts { margin: 0 0 18px; font-size: 13px; }
.facts div { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-top: 1px solid var(--line); }
.facts dt { color: var(--muted); } .facts dd { margin: 0; text-align: right; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; } .actions > * { flex: 1 1 120px; }
.plain-list a { display: block; padding: 14px 0; border-top: 1px solid var(--line); }
.plain-list a:last-child { border-bottom: 1px solid var(--line); }
.plain-list small { display: block; font-size: 13px; color: var(--muted); }
.report { margin-top: 32px; border-top: 1px solid var(--line); padding-top: 16px; }
.report summary { cursor: pointer; font-size: 13px; color: var(--muted); min-height: 32px; }
.report form { display: grid; gap: 12px; margin-top: 12px; max-width: 420px; }
.report label { font-size: 13px; color: var(--muted); display: grid; gap: 6px; }
.report select, .report textarea { font: inherit; font-size: 14px; color: var(--text); background: var(--surface);
  border: 1px solid var(--line-strong); border-radius: 10px; padding: 10px 12px; }
.notice { background: var(--chip); color: var(--text); border-radius: 12px; padding: 12px 16px; font-size: 14px; margin: 16px 0 0; }

/* ---------- 产品榜 ---------- */
.board-tools { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.board-head { display: flex; gap: 16px; padding-bottom: 10px; font-size: 12px; color: var(--muted); letter-spacing: .04em; border-bottom: 1px solid var(--line); }
.board { margin: 0; padding: 0; list-style: none; }
.board li { display: flex; align-items: center; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.c-rank { width: 36px; flex: none; display: flex; flex-direction: column; line-height: 1.3; }
.c-rank b { font-size: 17px; font-variant-numeric: tabular-nums; }
.c-rank small { font-size: 11px; font-variant-numeric: tabular-nums; color: var(--faint); }
.c-rank .up { color: var(--accent); } .c-rank .down { color: var(--warn); }
.c-prod { flex: 1; min-width: 0; display: flex; align-items: center; gap: 14px; }
.c-prod .stack b { font-size: 16px; font-weight: 600; }
.c-metric { width: 96px; flex: none; text-align: right; display: flex; flex-direction: column; line-height: 1.4; }
.c-metric b { font-size: 16px; font-variant-numeric: tabular-nums; }
.c-metric small { font-size: 12px; color: var(--muted); }
.c-act { width: 96px; flex: none; display: flex; justify-content: flex-end; }
.c-act .btn { height: 36px; padding: 0 14px; font-size: 13px; }
.board-note { margin: 24px 0 0; font-size: 13px; color: var(--muted); }

/* ---------- 我的关注 ---------- */
.fl-list { display: flex; flex-direction: column; gap: 4px; }
.fl-item { display: flex; align-items: center; gap: 4px; }
.fl-item > a { flex: 1; min-width: 0; display: flex; align-items: center; gap: 12px; height: 48px; padding: 0 10px; border-radius: 12px; font-weight: 500; font-size: 14px; }
.fl-item > a[aria-current="true"] { background: var(--seg); }
.fl-item .icon-btn { width: 36px; height: 36px; }
.day-label { margin: 28px 0 4px; font-size: 13px; font-weight: 500; color: var(--muted); letter-spacing: .04em; }
.empty-box { margin-top: 28px; border: 1px dashed var(--line-strong); border-radius: 16px; padding: 40px 28px; text-align: center; }
.empty-box b { display: block; font-size: 16px; margin-bottom: 6px; }
.empty-box p { margin: 0 0 18px; color: var(--muted); font-size: 14px; }

/* ---------- 页脚与手机底栏 ---------- */
.footer { border-top: 1px solid var(--line); }
.footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding-top: 28px; padding-bottom: 28px; font-size: 13px; color: var(--muted); }
.tabbar { display: none; }

@media (max-width: 720px) {
  .wrap { padding: 0 20px; }
  .nav a { display: none; }
  main.wrap { padding-top: 24px; padding-bottom: 120px; }
  h1 { font-size: 24px; }
  .detail h1 { font-size: 24px; }
  .cols { gap: 40px; }
  .pills { flex-wrap: nowrap; overflow-x: auto; margin-right: -20px; padding-right: 20px; scrollbar-width: none; }
  .pills::-webkit-scrollbar { display: none; }
  .topic-title { font-size: 16px; }
  .c-act { width: auto; } .c-metric { width: 52px; }
  .c-rank { width: 34px; }
  .c-rank small { white-space: nowrap; font-size: 10px; }
  .board li { gap: 10px; }
  .board-head { display: none; }
  .c-prod { gap: 12px; }
  .c-prod .tile-m { width: 40px; height: 40px; border-radius: 11px; font-size: 16px; }
  .c-prod .stack small.tagline { display: none; }
  .c-act .btn { height: 34px; padding: 0 12px; }
  .source .src-name { width: auto; }
  .tabbar { display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 10; background: var(--bg);
    border-top: 1px solid var(--line); padding: 6px 8px calc(10px + env(safe-area-inset-bottom)); }
  .tabbar a { flex: 1; min-height: 52px; display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 2px; font-size: 11px; color: var(--muted); }
  .tabbar a[aria-current="page"] { color: var(--text); font-weight: 500; }
  .footer { display: none; }
}