:root {
  color-scheme: light;
  --bg: #f4f1ea;
  --bg-card: #ffffff;
  --bg-inset: #ebe6dc;
  --ink: #141414;
  --ink-soft: #5a5651;
  --ink-faint: #9a948a;
  --rule: #d9d3c6;
  --accent: #d94f2a;
  --accent-ink: #ffffff;
  --up: #1f7a3a;
  --down: #b8331a;
  --h0: #ebe6dc;
  --h1: #e3c9b4;
  --h2: #dba98a;
  --h3: #d08862;
  --h4: #c5663c;
  --h5: #b04820;
  --font-serif: "Fraunces", Georgia, "Times New Roman", serif;
  --font-sans: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #121210;
    --bg-card: #1c1b18;
    --bg-inset: #252420;
    --ink: #eeeae0;
    --ink-soft: #9a948a;
    --ink-faint: #5a5651;
    --rule: #2f2d28;
    --accent: #ee6a3f;
    --accent-ink: #121210;
    --up: #5ab87a;
    --down: #e06a4f;
    --h0: #242320;
    --h1: #3d2f24;
    --h2: #5a3e27;
    --h3: #81522b;
    --h4: #a56530;
    --h5: #d17838;
  }
}

:root[data-mode="light"] {
  color-scheme: light;
  --bg: #f4f1ea; --bg-card: #ffffff; --bg-inset: #ebe6dc;
  --ink: #141414; --ink-soft: #5a5651; --ink-faint: #9a948a; --rule: #d9d3c6;
  --accent-ink: #ffffff; --up: #1f7a3a; --down: #b8331a;
  --h0: #ebe6dc; --h1: #e3c9b4; --h2: #dba98a; --h3: #d08862; --h4: #c5663c; --h5: #b04820;
}

:root[data-mode="dark"] {
  color-scheme: dark;
  --bg: #121210; --bg-card: #1c1b18; --bg-inset: #252420;
  --ink: #eeeae0; --ink-soft: #9a948a; --ink-faint: #5a5651; --rule: #2f2d28;
  --accent-ink: #121210; --up: #5ab87a; --down: #e06a4f;
  --h0: #242320; --h1: #3d2f24; --h2: #5a3e27; --h3: #81522b; --h4: #a56530; --h5: #d17838;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  min-height: 100dvh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
button, input { font: inherit; }
button { touch-action: manipulation; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
[hidden] { display: none !important; }

.mono { font-family: var(--font-mono); font-feature-settings: "tnum", "zero"; }
.serif { font-family: var(--font-serif); font-optical-sizing: auto; }

.page {
  max-width: 1280px;
  margin: 0 auto;
  padding: 40px 32px 80px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 24px;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 14px;
  margin-bottom: 40px;
}
.brand {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.brand .dot { color: var(--accent); }
.brand span:last-child { color: var(--ink-faint); font-weight: 400; }
.status {
  display: flex;
  align-items: center;
  gap: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
}
.status .live::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 6px;
  border-radius: 50%;
  background: var(--accent);
  vertical-align: middle;
}
.status button {
  min-width: 28px;
  min-height: 24px;
  padding: 2px 8px;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
}
.status button:hover { border-color: var(--ink-faint); color: var(--ink); }

.visitor-banner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 8px;
  margin-bottom: 20px;
  padding: 10px 16px;
  border: 1px solid var(--rule);
  background: var(--bg-inset);
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}
.visitor-banner:empty { display: none; }
.visitor-banner strong { color: var(--ink); }
.visitor-icon { font-size: 14px; }

.hero {
  padding: 20px 0 56px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 40px;
}
.hero-date {
  margin-bottom: 20px;
  color: var(--ink-faint);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.hero-date .sep {
  display: inline-block;
  width: 20px;
  height: 1px;
  margin: 0 8px;
  background: var(--rule);
  vertical-align: middle;
}
.hero-sentence {
  max-width: 18ch;
  color: var(--ink);
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(36px, 5.5vw, 64px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
.hero-sentence em {
  color: var(--accent);
  font-style: italic;
  font-weight: 400;
}
.hero-sentence .num { font-style: normal; font-feature-settings: "tnum"; }
.hero-footnote {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 28px;
  color: var(--ink-soft);
  font-size: 13px;
}
.hero-footnote span { font-family: var(--font-mono); }

.period-tabs {
  display: flex;
  gap: 0;
  overflow-x: auto;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 36px;
}
.day-nav-group { display: inline-flex; align-items: center; flex-shrink: 0; }
.period-tab,
.day-arrow {
  border: 0;
  background: transparent;
  color: var(--ink-faint);
  cursor: pointer;
  transition: color 120ms ease, border-color 120ms ease;
}
.period-tab {
  padding: 12px 20px 14px;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.period-tab:hover,
.day-arrow:hover { color: var(--ink-soft); }
.period-tab.active {
  color: var(--ink);
  border-bottom-color: var(--accent);
}
.period-tab .en {
  display: block;
  margin-top: 2px;
  color: var(--ink-faint);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.period-tab.active .en { color: var(--ink-soft); }
.day-arrow {
  min-width: 26px;
  padding: 12px 6px 14px;
  font-size: 18px;
  line-height: 1;
  user-select: none;
}
.day-arrow.disabled { opacity: 0.25; pointer-events: none; }

.date-range-picker {
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 24px;
  padding: 14px 16px;
  border: 1px solid var(--rule);
  background: var(--bg-inset);
  color: var(--ink-soft);
  font-size: 12px;
}
.date-range-picker:not([hidden]) { display: flex; }
.date-range-picker label {
  color: var(--ink-faint);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.date-range-picker input[type="date"] {
  min-height: 34px;
  padding: 6px 10px;
  border: 1px solid var(--rule);
  background: var(--bg-card);
  color: var(--ink);
  font-size: 12px;
  outline: none;
}
.date-range-picker input[type="date"]:focus { border-color: var(--accent); }
.date-range-picker button {
  min-height: 34px;
  border: 0;
  background: var(--ink);
  color: var(--bg-card);
  cursor: pointer;
  padding: 6px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.date-range-picker button:hover { opacity: 0.85; }
.date-range-status { color: var(--ink-faint); font-size: 11px; }

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 24px;
  margin-bottom: 14px;
}
.section-head h2,
.section-head .meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.section-head h2 { color: var(--ink-soft); font-weight: 500; }
.section-head .meta { color: var(--ink-faint); letter-spacing: 0.05em; }

.heatmap { margin-bottom: 48px; }
.heatmap-grid,
.heatmap-hours {
  display: grid;
  grid-template-columns: repeat(24, 1fr);
  gap: 3px;
}
.heatmap-grid { margin-bottom: 8px; }
.heatmap-cell {
  aspect-ratio: 1 / 1.6;
  position: relative;
  background: var(--h0);
  transition: outline 80ms ease;
}
.heatmap-cell[data-level="1"] { background: var(--h1); }
.heatmap-cell[data-level="2"] { background: var(--h2); }
.heatmap-cell[data-level="3"] { background: var(--h3); }
.heatmap-cell[data-level="4"] { background: var(--h4); }
.heatmap-cell[data-level="5"] { background: var(--h5); }
.heatmap-cell:hover { outline: 2px solid var(--ink); outline-offset: 1px; z-index: 2; }
.heatmap-cell[data-now="true"]::after { content: ""; position: absolute; inset: 0; border: 2px solid var(--ink); pointer-events: none; }
.heatmap-hours {
  color: var(--ink-faint);
  font-family: var(--font-mono);
  font-size: 9px;
}
.heatmap-hours span { text-align: center; }
.heatmap-hours span:not(:nth-child(3n+1)) { visibility: hidden; }
.heatmap-legend {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  color: var(--ink-faint);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.05em;
}
.swatches { display: flex; gap: 2px; }
.sw { display: block; width: 12px; height: 12px; }
.h0 { background: var(--h0); } .h1 { background: var(--h1); } .h2 { background: var(--h2); }
.h3 { background: var(--h3); } .h4 { background: var(--h4); } .h5 { background: var(--h5); }

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  border: 1px solid var(--rule);
  background: var(--rule);
}
.card {
  position: relative;
  display: flex;
  min-height: 240px;
  flex-direction: column;
  padding: 28px 28px 26px;
  background: var(--bg-card);
}
.card.card-wide {
  grid-column: 1 / -1;
  min-height: auto;
  padding: 32px;
}
.card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}
.card-title,
.card-index {
  font-family: var(--font-mono);
  text-transform: uppercase;
}
.card-title {
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.15em;
}
.card-title .en {
  margin-left: 6px;
  color: var(--ink-faint);
  font-weight: 400;
}
.card-index { color: var(--ink-faint); font-size: 10px; letter-spacing: 0.05em; }
.stat-main {
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: 52px;
  font-weight: 400;
  font-feature-settings: "tnum";
  line-height: 1;
  letter-spacing: -0.03em;
}
.stat-unit {
  margin-top: 6px;
  color: var(--ink-soft);
  font-size: 13px;
  letter-spacing: 0.01em;
}
.stat-unit .en {
  margin-left: 6px;
  color: var(--ink-faint);
  font-family: var(--font-mono);
  font-size: 11px;
}
.stat-meta {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px dashed var(--rule);
  font-size: 12px;
}
.stat-context { max-width: 60%; color: var(--ink-soft); line-height: 1.4; }
.stat-trend-block { display: flex; flex-direction: column; align-items: flex-end; gap: 3px; flex-shrink: 0; }
.stat-trend,
.stat-trend-prev {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.stat-trend-prev { color: var(--ink-faint); font-size: 9px; text-align: right; }
.stat-trend.up { color: var(--up); }
.stat-trend.down { color: var(--down); }
.stat-trend.flat { color: var(--ink-faint); }

.sub-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 14px;
}
.sub-stat { border-left: 2px solid var(--rule); padding-left: 8px; }
.sub-stat .n { color: var(--ink); font-family: var(--font-mono); font-size: 14px; }
.sub-stat .l { margin-top: 2px; color: var(--ink-faint); font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.05em; text-transform: uppercase; }
.sub-stat .t { margin-top: 4px; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.05em; white-space: nowrap; }
.sub-stat .t.up { color: var(--up); } .sub-stat .t.down { color: var(--down); } .sub-stat .t.flat { color: var(--ink-faint); }

.model-list { display: flex; flex-direction: column; gap: 14px; margin-top: 6px; }
.model-row { display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: baseline; }
.model-name { color: var(--ink); font-family: var(--font-serif); font-size: 24px; line-height: 1; letter-spacing: -0.01em; }
.model-val { color: var(--ink); font-family: var(--font-mono); font-size: 20px; line-height: 1; letter-spacing: -0.01em; }
.model-detail { grid-column: 1 / -1; margin-top: -8px; color: var(--ink-faint); font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.04em; text-transform: uppercase; }
.model-bar,
.app-bar { grid-column: 1 / -1; height: 4px; background: var(--bg-inset); }
.model-bar > i,
.app-bar > i { display: block; height: 100%; background: var(--accent); }

.shell-tags { display: flex; flex-wrap: wrap; gap: 6px; align-items: baseline; margin-top: 8px; }
.shell-tag {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 4px 8px;
  background: var(--bg-inset);
  color: var(--ink);
  font-family: var(--font-mono);
  line-height: 1;
}
.shell-tag .c { color: var(--ink-faint); font-size: 0.8em; }

.rhythm { display: flex; flex-direction: column; gap: 14px; margin-top: 4px; }
.rhythm-row { display: flex; justify-content: space-between; align-items: baseline; border-bottom: 1px dashed var(--rule); padding-bottom: 10px; font-size: 12px; }
.rhythm-row:last-child { border: none; padding-bottom: 0; }
.rhythm-row .label { color: var(--ink-faint); font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; }
.rhythm-row .value { color: var(--ink); font-family: var(--font-mono); font-size: 14px; }
.timeline { position: relative; height: 6px; margin-top: 14px; background: var(--bg-inset); }
.timeline-active { position: absolute; top: 0; bottom: 0; min-width: 2px; background: var(--accent); }
.timeline-ticks { display: flex; justify-content: space-between; margin-top: 4px; color: var(--ink-faint); font-family: var(--font-mono); font-size: 9px; }

.focus-wide-layout { display: grid; grid-template-columns: 200px 1fr; gap: 32px; align-items: start; }
.focus-summary { border-right: 1px solid var(--rule); padding-right: 24px; }
.focus-summary .stat-main { font-size: 36px; }
.app-list-wide { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 24px; max-height: 320px; overflow-y: auto; padding-right: 4px; }
.app-row { display: grid; grid-template-columns: 1fr auto; gap: 7px 12px; align-items: baseline; }
.app-row .name { overflow: hidden; color: var(--ink); font-family: var(--font-mono); font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
.app-row .dur { color: var(--ink-soft); font-family: var(--font-mono); font-size: 12px; }

.kb-layout { padding: 4px 0; }
.kb-row { display: flex; gap: 3px; margin-bottom: 3px; }
.kb-key {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 32px;
  min-width: 0;
  border-radius: 4px;
  overflow: hidden;
  background: var(--h0);
  color: var(--ink-faint);
  font-family: var(--font-mono);
  font-size: 10px;
}
.kb-key span { overflow: hidden; padding: 0 2px; text-overflow: ellipsis; white-space: nowrap; }
.kb-key[data-level="1"] { background: var(--h1); color: var(--ink-soft); }
.kb-key[data-level="2"] { background: var(--h2); color: var(--ink); }
.kb-key[data-level="3"], .kb-key[data-level="4"], .kb-key[data-level="5"] { color: var(--bg); }
.kb-key[data-level="3"] { background: var(--h3); }
.kb-key[data-level="4"] { background: var(--h4); }
.kb-key[data-level="5"] { background: var(--h5); }
.kb-sp { height: 32px; }

.foot {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-top: 56px;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
  color: var(--ink-faint);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
}
.privacy { max-width: 60ch; line-height: 1.5; }
.foot-right { text-align: right; }

.tweaks {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 100;
  display: none;
  width: 280px;
  padding: 16px;
  border: 1px solid var(--ink);
  background: var(--bg-card);
  box-shadow: 0 24px 60px rgb(0 0 0 / 0.12);
  font-size: 12px;
}
.tweaks.open { display: block; }
.tweaks h3 {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.tweaks h3 button { border: 0; background: transparent; color: var(--ink-faint); cursor: pointer; font-size: 16px; }
.tweak-row { margin-bottom: 12px; }
.tweak-row label { display: block; margin-bottom: 6px; color: var(--ink-faint); font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; }
.tweak-options { display: flex; border: 1px solid var(--rule); }
.tweak-options button { flex: 1; min-height: 32px; border: 0; border-right: 1px solid var(--rule); background: transparent; color: var(--ink-soft); cursor: pointer; font-family: var(--font-mono); font-size: 10px; }
.tweak-options button:last-child { border-right: 0; }
.tweak-options button.active { background: var(--ink); color: var(--bg-card); }
.accent-swatches { display: flex; gap: 6px; }
.accent-swatches button { width: 24px; height: 24px; border: 2px solid var(--rule); cursor: pointer; padding: 0; }
.accent-swatches button.active { border-color: var(--ink); }

:root[data-density="airy"] .card { min-height: 280px; padding: 36px 32px 32px; }
:root[data-density="airy"] .stat-main { font-size: 64px; }
:root[data-density="dense"] .card { min-height: 200px; padding: 20px 20px 18px; }
:root[data-density="dense"] .stat-main { font-size: 42px; }

:root[data-lang="zh"] .en { display: none !important; }
:root[data-lang="en"] .zh { display: none !important; }
:root[data-lang="bilingual"] .hero-sentence .en,
:root[data-lang="bilingual"] .stat-unit .en,
:root[data-lang="bilingual"] .stat-context .en,
:root[data-lang="bilingual"] .rhythm-row .label .en,
:root[data-lang="bilingual"] .section-head h2 .en,
:root[data-lang="bilingual"] .hero-footnote .en,
:root[data-lang="bilingual"] .foot .privacy .en,
:root[data-lang="bilingual"] .status .en {
  display: block;
  margin-top: 2px;
  color: var(--ink-faint);
  font-family: var(--font-mono);
  font-weight: 400;
  letter-spacing: 0.02em;
}
:root[data-lang="bilingual"] .hero-sentence .en { max-width: 56ch; margin-top: 16px; font-size: 13px; line-height: 1.5; letter-spacing: 0.02em; }
:root[data-lang="bilingual"] .stat-unit .en { margin-top: 4px; margin-left: 0; font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; }
:root[data-lang="bilingual"] .stat-context .en { font-size: 10px; letter-spacing: 0.04em; }
:root[data-lang="bilingual"] .section-head h2 .en,
:root[data-lang="bilingual"] .hero-footnote .en,
:root[data-lang="bilingual"] .status .en { display: inline; margin-left: 4px; }
:root[data-lang="bilingual"] .card-title .en,
:root[data-lang="bilingual"] .period-tab .en { display: inline; }
:root[data-lang="bilingual"] .period-tab .en { display: block; }
/* trend 参考值是右下角小图例，bilingual 下只保留一种语言以免堆叠 */
:root[data-lang="bilingual"] .stat-trend-prev .en { display: none; }

@media (max-width: 1024px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .focus-wide-layout { grid-template-columns: 1fr; gap: 16px; }
  .focus-summary { border-right: 0; border-bottom: 1px solid var(--rule); padding-right: 0; padding-bottom: 16px; }
  .app-list-wide { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .page { padding: 24px 20px 60px; }
  .topbar { align-items: flex-start; margin-bottom: 32px; }
  .brand { font-size: 20px; }
  .status { flex-direction: column; align-items: flex-end; gap: 4px; text-align: right; }
  .hero { padding-top: 12px; padding-bottom: 44px; }
  .hero-sentence { max-width: 12ch; font-size: clamp(38px, 13vw, 56px); }
  .period-tab { padding-inline: 14px; }
  .cards { grid-template-columns: 1fr; }
  .card, .card.card-wide { padding: 24px 22px 22px; }
  .stat-context { max-width: none; }
  .stat-meta { flex-direction: column; align-items: flex-start; }
  .heatmap-grid, .heatmap-hours { gap: 2px; }
  .kb-row { gap: 2px; margin-bottom: 2px; }
  .kb-key { height: 24px; font-size: 8px; }
  .kb-sp { height: 24px; }
  .foot { flex-direction: column; }
  .tweaks { inset: auto 12px 12px 12px; width: auto; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 1ms !important; animation-duration: 1ms !important; }
}

.period-tabs { scrollbar-width: none; }
.period-tabs::-webkit-scrollbar { display: none; }