/* 展示端：极简博客式的页面——顶栏、居中的内容列、大号标题、细分隔线 */
.topbar {
  position: sticky;
  top: 0;
  /* 要比悬停中的卡片（z-index: 30，见下面）高：卡片滚到顶部栏下面时，鼠标悬停上去不能盖住顶部栏 */
  z-index: 40;
  background: color-mix(in srgb, var(--app-bg), transparent 8%);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--app-outline-soft);
}

.topbar .inner {
  /* 不再限宽居中：站点名和头像贴着左边，导航、状态和主题按钮整体靠右 */
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--app-ink);
}

.brand-logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
  /* 头像是透明底的立绘，给一点投影让它在背景图上更清楚 */
  filter: drop-shadow(0 2px 4px color-mix(in srgb, var(--app-shadow) 35%, transparent));
}

.brand:hover {
  text-decoration: none;
}

.topnav {
  display: flex;
  gap: 4px;
  margin-left: auto;
}

.topnav a {
  padding: 6px 14px;
  border-radius: var(--r-pill);
  color: var(--app-ink-muted);
  font-weight: 500;
}

.topnav a:hover {
  text-decoration: none;
  background: var(--app-card-inset);
}

.topnav a.active {
  background: var(--app-accent-container);
  color: var(--app-on-accent-container);
}

/* 内容贴着屏幕左边排列（不居中），右边留给背景图 */
.page {
  max-width: 1200px;
  margin: 0;
  padding: 40px 24px 80px;
}

/* 线路页是数据工作区：宽屏充分利用空间，图表和辅助文字保持清晰对比。 */
.line-page {
  --line-secondary: color-mix(in srgb, var(--app-ink) 58%, var(--app-ink-muted));
  width: min(100%, 1640px);
  max-width: 1640px;
  padding-top: 24px;
  padding-bottom: 56px;
  /* 正文背景上的全局柔光会让标题、节点状态和说明显得发虚；数据页文字保持锐利。 */
  text-shadow: none;
}

.line-page .hero h1 {
  font-size: 32px;
}

.line-page .line-title-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.line-page .line-title-row h1 {
  margin: 0;
  font-size: clamp(24px, 2vw, 32px);
}

.line-page .line-version-switch {
  gap: 6px;
}

.line-page .line-route-meta {
  gap: 6px 12px;
  margin-top: 6px;
  font-size: 12px;
}

.line-page .line-route-status {
  color: var(--app-ink);
  font-weight: 650;
}

.line-page .line-range-picker {
  margin-top: 8px;
}

.line-page .faint,
.line-page .chart-hint,
.line-page .chart-section h2,
.line-page .stat .k {
  color: var(--line-secondary);
  font-weight: 500;
}

.line-page .line-peer-name {
  color: var(--line-secondary);
  font-weight: 500;
}

.line-page .line-section-label {
  color: var(--app-ink);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.line-page .line-toolbar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 16px;
  padding: 8px 12px;
  border-radius: var(--r-card);
  background: color-mix(in srgb, var(--app-card) 78%, transparent);
}

.line-page .line-toolbar-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  min-width: 0;
}

.line-page .line-smoothing {
  margin-left: 0;
}

.line-page .line-header-surface,
.line-page .line-metric-surface {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-filter);
  box-shadow: inset 0 1px 0 var(--glass-top), var(--glass-drop);
}

.line-page .line-header-surface {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 20px 16px;
  border-radius: var(--r-group-outer);
}

.line-page .line-metric-surface {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 18px;
  border-radius: var(--r-group-outer);
}

.line-page .line-metric-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 20px;
}

.line-page .line-metric-heading {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 12px;
}

.line-page .line-metric-heading h2 {
  color: var(--app-ink);
  font-size: 19px;
  font-weight: 700;
}

.line-page .line-metric-heading > span {
  color: var(--line-secondary);
  font-size: 12px;
}

.line-page .range-toolbar {
  align-items: center;
  gap: 8px 14px;
}

.line-page .range-toolbar-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-left: auto;
}

.line-page .line-data-notes {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 14px;
  color: var(--line-secondary);
  font-size: 11px;
  font-weight: 450;
  line-height: 1.4;
}

.line-page .crumbs,
.line-page .minimap .tick,
.line-page .minimap .readout,
.line-page .chart-legend,
.line-page .stat .v small {
  color: var(--line-secondary);
}

.line-page .minimap .tick {
  font-size: 12px;
  font-weight: 500;
}

.line-page .chart-section h2,
.line-page .chart-card h3 {
  font-weight: 700;
}

.line-page .chart-card {
  min-width: 0;
  gap: 2px;
  padding: 12px 14px;
  background: color-mix(in srgb, var(--glass-line) 4%, transparent);
  box-shadow: none;
  backdrop-filter: none;
}

.line-page .chart-card h3 {
  font-size: 14px;
  color: var(--app-ink);
}

.line-page .quic-chart-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.line-page .line-quic-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.line-page .line-combo-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  min-height: 84px;
  padding: 10px 14px;
  border-radius: var(--r-control);
  background: color-mix(in srgb, var(--glass-line) 4%, transparent);
}

.line-page .line-combo-card h3 {
  color: var(--line-secondary);
  font-size: 12px;
  font-weight: 600;
}

.line-page .line-combo-primary {
  display: flex;
  align-items: baseline;
  gap: 8px;
  color: var(--line-secondary);
  font-size: 13px;
}

.line-page .line-combo-primary strong {
  color: var(--app-ink);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.line-page .combo-tone-ok {
  color: var(--app-ok) !important;
}

.line-page .combo-tone-warn {
  color: var(--app-warn) !important;
}

.line-page .combo-tone-bad {
  color: var(--app-bad) !important;
}

.line-page .line-combo-secondary,
.line-page .line-jitter-pair {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 10px;
  color: var(--line-secondary);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.line-page .line-combo-secondary b,
.line-page .line-jitter-pair b {
  color: var(--app-ink);
  font-weight: 650;
}

.line-page .combo-divider {
  opacity: 0.55;
}

.line-page .line-combo-badge {
  align-self: flex-start;
  padding: 2px 7px;
  border-radius: var(--r-pill);
  background: var(--app-card-inset);
  color: var(--line-secondary);
  font-size: 10px;
  line-height: 1.4;
  font-variant-numeric: tabular-nums;
}

.line-page .line-jitter-pair {
  gap: 8px 20px;
  font-size: 16px;
}

.line-page .line-session-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 18px;
  padding: 10px 4px 2px;
  border-top: 1px solid var(--glass-head-line);
  background: transparent;
  color: var(--line-secondary);
  font-size: 12px;
}

.line-page .line-session-title {
  color: var(--app-ink);
  font-weight: 700;
  white-space: nowrap;
}

.line-page .line-session-items {
  display: flex;
  flex: 1;
  flex-wrap: wrap;
  gap: 5px 18px;
}

.line-page .line-session-items b {
  color: var(--app-ink);
  font-variant-numeric: tabular-nums;
}

.line-page .line-session-bar small {
  flex-basis: 100%;
  color: var(--line-secondary);
  font-size: 11px;
}

.line-page .tiles {
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px;
}

.line-page .tiles > .stat {
  box-shadow: 0 8px 24px -20px var(--app-shadow);
}

.line-page .line-metric-subhead {
  grid-column: 1 / -1;
  margin-top: 4px;
  padding-top: 8px;
  border-top: 1px solid var(--app-outline-soft);
  color: var(--app-ink);
  font-size: 14px;
  font-weight: 700;
}

.line-page .line-wide-note {
  grid-column: 1 / -1;
}

.line-page .stack {
  gap: 10px;
}

.line-page .chart-section {
  gap: 6px;
}

.line-page .chart-section h2 {
  margin-top: 4px;
}

.line-page .minimap {
  margin-top: 6px;
}

.line-page .minimap .track {
  height: 42px;
  margin-bottom: 22px;
  background: repeating-linear-gradient(
    135deg,
    color-mix(in srgb, var(--glass-bg) 94%, var(--glass-shade) 6%) 0 8px,
    color-mix(in srgb, var(--glass-bg) 86%, var(--glass-shade) 14%) 8px 11px
  );
}

.line-page .minimap .ticks {
  height: 20px;
}

.line-page .minimap .tick {
  height: 20px;
  padding-top: 8px;
  font-size: 11px;
  letter-spacing: 0.01em;
}

.line-page .minimap .tick.date {
  font-size: 11px;
  font-weight: 650;
}

.line-page .minimap .readout {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-top: 3px;
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: 0.01em;
}

.line-page .minimap .readout > span {
  margin-left: 2px;
}

.line-page .minimap .sel {
  border-block: 1px solid var(--pick);
  border-inline: 0;
  border-radius: 8px;
  background: color-mix(in srgb, var(--pick) 12%, transparent);
}

.line-page .minimap .sel .h {
  top: 8px;
  bottom: 8px;
  width: 4px;
  border-radius: 2px;
}

.line-page .minimap .sel .h::before {
  position: absolute;
  inset: -8px -4px;
  content: '';
}

.line-page .minimap .sel .h.l {
  left: -2px;
}

.line-page .minimap .sel .h.r {
  right: -2px;
}

.line-page .minimap svg rect.has {
  fill: var(--app-card);
}

.line-page .range-picker > .row:last-child {
  margin-top: 4px !important;
}

@media (max-width: 760px) {
  .line-page {
    padding: 20px 14px 48px;
  }

  .line-page .line-header-surface {
    padding: 14px;
    border-radius: var(--r-card);
  }

  .line-page .line-metric-surface {
    gap: 12px;
    padding: 12px;
    border-radius: var(--r-card);
  }

  .line-page .line-metric-header {
    align-items: flex-start;
  }

  .line-page .range-toolbar > .group {
    max-width: 100%;
    min-width: 0;
    flex-wrap: nowrap;
    overflow-x: auto;
  }

  .line-page .range-toolbar > .group > button,
  .line-page .range-toolbar-right .group > button {
    flex: none;
    white-space: nowrap;
  }

  .line-page .range-toolbar-right {
    width: 100%;
    flex-wrap: nowrap;
    justify-content: flex-start;
    overflow-x: auto;
  }

  .line-page .minimap .tick {
    width: max-content;
    min-width: 0;
    padding-right: 1px;
    padding-left: 1px;
    font-size: 9px;
    white-space: nowrap;
  }

  .line-page .minimap .tick:not(.date):not(:nth-child(6n + 1)) {
    display: none;
  }

  .line-page .hero h1 {
    font-size: 28px;
  }

  .line-page .line-title-row {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }

  .line-page .line-smoothing {
    margin-left: 0;
  }

  .line-page .line-quic-summary {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 900px) {
  .line-page .quic-chart-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.hero h1 {
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.hero .sub {
  margin-top: 8px;
  color: var(--app-ink-muted);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--app-accent);
  font-weight: 700;
}

.section-head {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  margin: 40px 0 16px;
  flex-wrap: wrap;
}

.section-head h2 {
  font-size: 20px;
  font-weight: 700;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
}

.line-row td:first-child {
  min-width: 200px;
}

.line-name {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.line-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

.scores {
  display: flex;
  gap: 6px;
  justify-content: flex-end;
}

.score-chip {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  min-width: 52px;
  padding: 4px 10px;
  border-radius: var(--r-control);
  background: var(--app-card-inset);
  line-height: 1.25;
}

.score-chip b {
  font-size: 15px;
  font-variant-numeric: tabular-nums;
}

.score-chip small {
  font-size: 10px;
  color: var(--app-ink-muted);
}

.score-chip.ok {
  background: var(--app-ok-container);
  color: var(--app-ok);
}

.score-chip.warn {
  background: var(--app-warn-container);
  color: var(--app-warn);
}

.score-chip.bad {
  background: var(--app-bad-container);
  color: var(--app-bad);
}

.chart-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.chart-card h3 {
  font-size: 14px;
  font-weight: 600;
}

.crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--app-ink-muted);
  margin-bottom: 12px;
}

.event-list {
  display: flex;
  flex-direction: column;
}

.event-list > div {
  display: flex;
  gap: 16px;
  padding: 8px 0;
  border-bottom: 1px solid var(--app-outline-soft);
}

.event-list > div:last-child {
  border-bottom: 0;
}

.pick-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pick {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--r-pill);
  background: var(--app-card-inset);
  cursor: pointer;
  user-select: none;
}

.pick.on {
  background: var(--app-accent-container);
  color: var(--app-on-accent-container);
}

.pick input {
  display: none;
}

@media (max-width: 700px) {
  .hero h1 {
    font-size: 30px;
  }

  .table .hide-sm {
    display: none;
  }
}

/* ── Agent 卡片 ── */
.cards {
  margin-top: 24px;
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
}

.agent-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px;
}

.agent-card.offline {
  opacity: 0.62;
}

.agent-head {
  display: flex;
  align-items: center;
  gap: 8px;
}

.agent-name {
  font-size: 17px;
  font-weight: 700;
}

.agent-head .chip {
  margin-left: auto;
}

.agent-head .chip + .faint {
  font-size: 12px;
}

.lines {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.line-link {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 6px;
  min-width: 0;
  padding: 6px 10px;
  border-radius: var(--r-control);
  background: var(--app-card-inset);
  color: var(--app-ink);
}

.line-link > .muted {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.line-link > .scores {
  flex-wrap: wrap;
  margin-left: auto;
}

.line-link:hover {
  text-decoration: none;
  background: var(--app-card-hover);
}

.scores.compact {
  gap: 3px;
}

.scores.compact .score-chip {
  min-width: 0;
  padding: 1px 6px;
  flex-direction: row;
  gap: 4px;
  align-items: baseline;
}

.scores.compact .score-chip b {
  font-size: 12px;
}

.scores.compact .score-chip small {
  display: none;
}

.host {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--app-outline-soft);
}

.host.stale .meter i {
  background: var(--app-idle);
}

.meter-row {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) 44px;
  align-items: center;
  column-gap: 10px;
}

.meter-row .meter-detail {
  grid-column: 2 / 4;
  font-size: 11px;
  margin-top: -2px;
}

.meter-label {
  color: var(--app-ink-muted);
  font-size: 12px;
}

.meter {
  height: 8px;
  border-radius: var(--r-pill);
  background: var(--app-card-inset);
  overflow: hidden;
}

.meter i {
  display: block;
  height: 100%;
  border-radius: var(--r-pill);
  background: var(--app-accent);
  transition: width 0.4s;
}

.meter i.warn {
  background: var(--app-warn);
}

.meter i.bad {
  background: var(--app-bad);
}

.meter-value {
  text-align: right;
  font-size: 12px;
}

.host-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  margin-top: 4px;
  font-size: 12px;
}

.host-grid .stat {
  flex-direction: row;
  gap: 12px;
  align-items: baseline;
}

.host-grid .stat .k {
  min-width: 56px;
}

.live-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-left: 10px;
  border-radius: 50%;
  background: var(--app-idle);
}

.live-dot.on {
  background: var(--app-ok);
}

.range-picker {
  display: flex;
  flex-direction: column;
}

.day-pick {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 16px;
  border: 0;
  border-radius: var(--r-control);
  background: var(--app-card-inset);
  color: var(--app-ink);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.day-pick:hover {
  background: var(--app-card-hover);
}

.day-pick input {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 1px;
  height: 1px;
  padding: 0;
  border: 0;
  opacity: 0;
  pointer-events: none;
}

/* ── 对比：每个 Probe 的最佳线路 + 矩阵 ── */
.winners {
  margin-top: 24px;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

.winner {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px 18px;
}

.winner-name {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--app-ok);
}

.matrix td.r {
  padding-top: 6px;
  padding-bottom: 6px;
}

.cell {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border: 0;
  border-radius: var(--r-control);
  background: transparent;
  color: var(--app-ink);
  cursor: pointer;
  font-variant-numeric: tabular-nums;
}

.cell:hover {
  background: var(--app-card-hover);
}

.cell.on {
  background: var(--app-accent-container);
}

.cell svg {
  color: var(--app-ok);
}

/* ── 线路详情：指标平铺成一格一格 ── */
.tiles {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
}

.tiles > .stat,
.tiles > .tile {
  padding: 14px 16px;
  border-radius: var(--r-card);
  background: var(--app-card);
}

.tiles > .tile {
  display: flex;
  flex-direction: column;
  gap: 8px;
  grid-column: 1 / -1;
}

.tiles > .tile .k {
  font-size: 12px;
  color: var(--app-ink-faint);
}

.tiles .stat .v {
  font-size: 22px;
}

.tiles > .tile .scores {
  justify-content: flex-start;
}

/* ── 一天的缩略图和可拖动的选区 ── */
.minimap {
  --pick: var(--chart-1);
  margin-top: 12px;
}

.minimap .track {
  position: relative;
  height: 60px;
  margin-bottom: 18px;
  border-radius: var(--r-control);
  /* 没有数据的地方：灰色斜纹 */
  background: repeating-linear-gradient(135deg, var(--app-card-inset) 0 5px, var(--app-card-hover) 5px 10px);
  cursor: crosshair;
  touch-action: none;
  user-select: none;
}

.minimap svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border-radius: var(--r-control);
  overflow: hidden;
}

.minimap svg path {
  fill: var(--app-bad);
  opacity: 0.55;
}

.minimap svg rect.has {
  fill: var(--app-card);
}

.minimap .sel {
  position: absolute;
  top: 0;
  bottom: 0;
  border: 2px solid var(--pick);
  border-radius: var(--r-control);
  background: color-mix(in srgb, var(--pick) 16%, transparent);
  cursor: grab;
}

.minimap .sel .h {
  position: absolute;
  top: 12px;
  bottom: 12px;
  width: 6px;
  border-radius: 3px;
  background: var(--pick);
  cursor: ew-resize;
}

.minimap .sel .h.l {
  left: -4px;
}

.minimap .sel .h.r {
  right: -4px;
}

.minimap .ticks {
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  height: 18px;
}

.minimap .tick {
  position: absolute;
  top: 0;
  min-width: 16px;
  height: 18px;
  padding: 7px 2px 0;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--app-ink-faint);
  font: inherit;
  font-size: 11px;
  line-height: 1;
  cursor: pointer;
  transform: translateX(-50%);
}

/* 刻度线：每小时一根，标了钟点的更长 */
.minimap .tick::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  width: 1px;
  height: 4px;
  background: var(--app-ink-faint);
  opacity: 0.6;
}

.minimap .tick.minor::before {
  height: 3px;
  opacity: 0.35;
}

.minimap .tick:not(.minor)::before {
  height: 6px;
}

.minimap .tick:hover:not(:disabled) {
  background: var(--app-card-hover);
  color: var(--app-ink);
}

.minimap .tick:disabled {
  cursor: default;
}

.minimap .tick.date {
  font-weight: 600;
  color: var(--app-ink-muted);
}

.minimap .guide {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--app-ink-muted);
  opacity: 0.7;
  pointer-events: none;
}

.minimap .guide-label {
  position: absolute;
  top: 4px;
  padding: 2px 6px;
  border-radius: 6px;
  background: var(--app-ink);
  color: var(--app-card);
  font-size: 11px;
  white-space: nowrap;
  pointer-events: none;
}

.minimap .readout {
  font-size: 12px;
  color: var(--app-ink-muted);
}

.day-pick {
  user-select: none;
}

.minimap .midnight {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--app-ink-faint);
  opacity: 0.6;
  pointer-events: none;
}


/* ── 线路详情的图表：按 QUIC、TCP、评分分组，宽图占满一行 ── */
.chart-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chart-section h2 {
  margin: 8px 4px 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--app-ink-muted);
}

.chart-section .chart-card.wide {
  grid-column: 1 / -1;
}

.minimap .loading-bar {
  z-index: 2;
  border-radius: var(--r-control) var(--r-control) 0 0;
}

/* 点下去会动的端点：它到目标位置之间染色（扩大 = 强调色，收缩 = 灰色），端点本身也变色 */
.minimap .sweep {
  position: absolute;
  top: 0;
  bottom: 0;
  pointer-events: none;
  z-index: 1;
}

.minimap .sweep.grow {
  background: color-mix(in srgb, var(--chart-2) 32%, transparent);
}

.minimap .sweep.cut {
  background: color-mix(in srgb, var(--app-ink) 18%, transparent);
}

.minimap .sel .h {
  transition: background-color 0.12s ease;
}

.minimap .sel .h.will.grow {
  background: var(--chart-2);
}

.minimap .sel .h.will.cut {
  background: var(--app-ink-muted);
}

/* 顶栏里的连接状态：紧凑的一条，放在导航和主题切换之间 */
.topbar .src-status {
  width: auto;
  max-width: 220px;
  border-radius: var(--r-pill, 999px);
  padding: 6px 12px;
}

@media (max-width: 640px) {
  .topbar .src-status .st {
    display: none;
  }

  .topbar .src-status {
    max-width: 120px;
  }
}


.line-top {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lines-caption {
  padding: 0 4px 2px;
  font-size: 12px;
  color: var(--app-ink-faint);
}

/* ── 总览卡片里的 QUIC Datagram：按方向显示丢包小格 ── */
.line-name {
  font-weight: 600;
  font-size: 13px;
}

.line-top .faint {
  font-size: 11px;
}

.host-link {
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.host-link:hover,
.host-link:focus-visible {
  color: inherit;
  transform: translateY(-2px);
  box-shadow: 0 12px 32px -14px color-mix(in srgb, var(--glass-shade) 75%, transparent);
}

.host-link:focus-visible {
  outline: none;
}

.line-mini-stack {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.line-mini-quic-head {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 8px;
  line-height: 1.2;
}

.line-mini-quic-head > span,
.line-mini-direction-row > span:first-child,
.line-mini-tcp-row > span:first-child {
  color: var(--app-ink-muted);
  font-size: 10px;
  font-weight: 600;
}

.line-mini-quic-head > strong,
.line-mini-tcp-row > strong {
  color: var(--app-ink);
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

.line-mini-quic-head > small {
  margin-left: auto;
  color: var(--app-ink-faint);
  font-size: 9px;
  white-space: nowrap;
}

.line-mini-direction-row {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 66px;
  align-items: center;
  gap: 5px;
  min-width: 0;
}

.line-mini-direction-row > span:first-child,
.line-mini-tcp-row > span:first-child {
  font-weight: 500;
  white-space: nowrap;
}

.line-mini-tcp-row {
  display: grid;
  grid-template-columns: 34px 46px minmax(0, 1fr) max-content;
  align-items: center;
  gap: 5px;
  min-width: 0;
  margin-top: 2px;
  padding-top: 5px;
  border-top: 1px solid var(--app-outline-soft);
}

.line-mini-tcp-row > strong {
  font-size: 12px;
}

.line-mini-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1px 5px;
  border-radius: var(--r-pill);
  background: var(--app-card-inset);
  color: var(--app-ink-muted);
  font-size: 9px;
  line-height: 1.4;
  white-space: nowrap;
}

.line-mini-badge.ok {
  background: var(--app-ok-container);
  color: var(--app-ok);
}

.line-mini-badge.warn {
  background: var(--app-warn-container);
  color: var(--app-warn);
}

.line-mini-badge.bad {
  background: var(--app-bad-container);
  color: var(--app-bad);
}

.bars {
  display: flex;
  min-width: 0;
  gap: 1.5px;
  height: 8px;
}

.bar {
  flex: 1;
  min-width: 0;
  border-radius: 2px;
  background: var(--app-idle);
  opacity: 0.35;
}

.bar.ok {
  background: var(--app-ok);
  opacity: 0.9;
}

.bar.warn {
  background: var(--app-warn);
  opacity: 1;
}

.bar.bad {
  background: var(--app-bad);
  opacity: 1;
}

/* QUIC 和 TCP 两段之间留一点空 */
.strips {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* 悬停的那一格：小格描边、走势图上一条竖线和一个点，再弹一个小提示 */
.bar.on {
  outline: 2px solid var(--app-ink);
  outline-offset: 1px;
}

.strips {
  position: relative;
}

/* 提示弹在卡片右侧：平时收在卡片边上（透明、偏左），悬停时滑出来，移开时缩回去 */
.pop {
  position: absolute;
  top: -4px;
  left: calc(100% + 40px);
  z-index: 20;
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 168px;
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--app-ink);
  color: var(--app-card);
  font-size: 12px;
  line-height: 1.4;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateX(-14px) scale(0.96);
  transform-origin: left center;
  transition:
    opacity 0.16s ease,
    transform 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
  box-shadow: 0 6px 20px color-mix(in srgb, var(--app-shadow), transparent 68%);
}

.pop.open {
  opacity: 1;
  transform: none;
}

/* 指向卡片的小三角 */
.pop::before {
  content: '';
  position: absolute;
  top: 18px;
  left: -5px;
  width: 10px;
  height: 10px;
  background: var(--app-ink);
  transform: rotate(45deg);
  border-radius: 2px;
}

.pop-time {
  font-size: 12px;
  font-weight: 700;
  opacity: 0.8;
}

.pop-group {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
}

.pop-name {
  font-size: 10px;
  letter-spacing: 0.08em;
  opacity: 0.6;
}

.pop em {
  font-style: normal;
  font-weight: 700;
  margin-left: 4px;
}

.pop em.warn {
  color: var(--app-warn-container);
}

.pop em.bad {
  color: var(--app-bad-container);
}

/* 右边放不下（窄屏、卡片贴着右边）时，提示改成盖在卡片上方 */
@media (max-width: 900px) {
  .pop {
    left: auto;
    right: 0;
    top: -8px;
    transform: translateY(8px) scale(0.96);
    transform-origin: right bottom;
  }

  .pop::before {
    display: none;
  }
}

.site-foot {
  max-width: 900px;
  margin: 48px auto 24px;
  padding: 0 16px;
  font-size: 11px;
  text-align: center;
  color: var(--app-ink-faint);
}

.site-foot a {
  color: inherit;
  text-decoration: underline;
}

/* Agent 卡片：国旗开头，名字下面是「运营商 / 系统」两行（左边名字右边内容，和下面的流量、网速一个风格） */
/* 亚克力：整张卡片半透明 + 背景模糊，细亮边，大一点的投影；标题栏是稍深的一条，底下垫放大模糊的国旗 */
/* 背景图固定在最底下：图本身已经是预先模糊过的（web/display/scripts/prepare-bg.py），所以移动它只是搬一块贴图，不用每次让浏览器重新模糊；
   上面盖一层页面底色，亮色盖得浅一点，暗色盖得深。背景层会随鼠标移动（见 parallax.ts，直接改它的 transform），向外多留一圈边距免得露边。 */
.bg-layer {
  position: fixed;
  inset: -130px;
  z-index: -1;
  background-image:
    linear-gradient(color-mix(in srgb, var(--glass-veil) var(--bg-veil), transparent), color-mix(in srgb, var(--glass-veil) var(--bg-veil), transparent)),
    var(--bg-image, url('./assets/bg.jpg'));
  background-size: cover;
  background-position: center;
  pointer-events: none;
  /* 在预先模糊的基础上再模糊多少，右下角「外观」里调；默认 none */
  filter: var(--bg-filter, none);
}

:root {
  /* 盖在背景图上的遮罩的浓度：默认亮色 50%、暗色 62%；右下角「外观」里按倍数调（--bg-veil-scale，0 是不盖） */
  --bg-veil: min(100%, calc(50% * var(--bg-veil-scale, 1)));
}

:root[data-theme="dark"] {
  --bg-veil: min(100%, calc(62% * var(--bg-veil-scale, 1)));
}

/* 用哪张图由「外观」里的选择决定（backgrounds.ts，JS 把它写进 --bg-image）；这里的回退只管 JS 还没跑的第一帧：暗色先用暗色那张 */
:root[data-theme="dark"] .bg-layer {
  background-image:
    linear-gradient(color-mix(in srgb, var(--glass-veil) var(--bg-veil), transparent), color-mix(in srgb, var(--glass-veil) var(--bg-veil), transparent)),
    var(--bg-image, url('./assets/bg-dark.jpg'));
}

/* 关了背景晃动：背景不会再移动，就不用向外多留一圈边距了，按窗口的原始比例铺满（不会被放大裁掉四周） */
:root[data-sway='off'] .bg-layer {
  inset: 0;
}

/* ── 亚克力（毛玻璃）规范：所有玻璃面（卡片、线路面板、顶部栏、时间轴）只用下面这组变量；颜色来自 tokens.css 的 --glass-*，换风格改那里 ──
   --glass-bg      玻璃底色（半透明）          --glass-filter   背景模糊和饱和度
   --glass-ring    1px 的细描边                --glass-top      上沿的一条高光（玻璃边缘的反光）
   --glass-drop    投影（带一点底色的近黑，不用纯黑；暗色用一大一小两层，贴着一层细的、散开一层虚的）
   --glass-head    卡片标题栏的叠层            --glass-head-line  标题栏和身体之间的分隔线
   --glass-bar-*   顶部栏专用（更薄、更透） */
:root {
  --glass-bg: color-mix(in srgb, var(--glass-tint) 76%, transparent);
  --glass-filter: blur(28px) saturate(1.6);
  --glass-ring: color-mix(in srgb, var(--glass-line) 9%, transparent);
  --glass-top: color-mix(in srgb, var(--glass-light) 70%, transparent);
  --glass-drop: 0 14px 32px -12px color-mix(in srgb, var(--glass-shade) 45%, transparent);
  --glass-head: color-mix(in srgb, var(--glass-line) 5%, transparent);
  --glass-head-line: color-mix(in srgb, var(--glass-line) 8%, transparent);
  --glass-bar-bg: color-mix(in srgb, var(--glass-tint) 62%, transparent);
  --glass-bar-filter: blur(20px) saturate(1.5);
  --glass-bar-line: color-mix(in srgb, var(--glass-line) 7%, transparent);
  --glass-bar-drop: 0 4px 14px -8px color-mix(in srgb, var(--glass-shade) 28%, transparent);
}

/* 暗色：玻璃更透一点（58%），模糊和饱和度比亮色低（背景图本来就暗，饱和度太高会发艳）；
   边缘靠 10% 的白色细描边和 12% 的白色上沿高光撑出来；投影更深、分两层 */
:root[data-theme="dark"] {
  /* 玻璃上的小控件（分段按钮、标签、进度条底、时间轴的格子）：用半透明的白色叠层，不再是不透明的暖灰，免得在冷色玻璃上发褐 */
  --app-card-inset: color-mix(in srgb, var(--glass-line) 7%, transparent);
  --app-card-hover: color-mix(in srgb, var(--glass-line) 11%, transparent);
  --glass-bg: color-mix(in srgb, var(--glass-tint) 58%, transparent);
  --glass-filter: blur(24px) saturate(1.35);
  --glass-ring: color-mix(in srgb, var(--glass-line) 10%, transparent);
  --glass-top: color-mix(in srgb, var(--glass-light) 12%, transparent);
  --glass-drop:
    0 18px 40px -14px color-mix(in srgb, var(--glass-shade) 60%, transparent),
    0 2px 6px -2px color-mix(in srgb, var(--glass-shade) 40%, transparent);
  --glass-head: color-mix(in srgb, var(--glass-line) 4.5%, transparent);
  --glass-head-line: color-mix(in srgb, var(--glass-line) 7%, transparent);
  --glass-bar-bg: color-mix(in srgb, var(--glass-tint) 52%, transparent);
  --glass-bar-filter: blur(20px) saturate(1.3);
  --glass-bar-line: color-mix(in srgb, var(--glass-line) 8%, transparent);
  --glass-bar-drop: 0 6px 20px -10px color-mix(in srgb, var(--glass-shade) 55%, transparent);
}

.agent-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-filter);
  box-shadow:
    inset 0 0 0 1px var(--glass-ring),
    inset 0 1px 0 var(--glass-top),
    var(--glass-drop);
}

.agent-head {
  position: relative;
  isolation: isolate;
  margin: -20px -20px 0;
  padding: 16px 20px;
  border-radius: var(--r-card) var(--r-card) 0 0;
  background: var(--glass-head);
  border-bottom: 1px solid var(--glass-head-line);
}

.agent-head .flag {
  flex: none;
  width: 24px;
  height: 18px;
  border-radius: 3px;
  object-fit: cover;
  box-shadow: 0 0 0 1px var(--app-outline-soft);
}

.agent-head .flag.ph {
  display: inline-block;
  background: var(--app-card-inset);
}

.facts {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
}

.fact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.fact .k {
  color: var(--app-ink-faint);
}

.fact .v {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--app-ink);
}

.fact .v .isp {
  flex: none;
  width: 16px;
  height: 16px;
  object-fit: contain;
}

.fact .v .isp rect {
  fill: var(--app-ink-faint);
}

.fact .v .isp text {
  fill: var(--isp-ink);
  font-size: 10px;
  font-weight: 700;
}

.fact .v .isp-broadnet rect {
  fill: var(--isp-broadnet);
}

/* 线路行：国旗在 Probe 名字前面，运营商图标在后面 */
.line-name {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.line-name .flag {
  flex: none;
  width: 18px;
  height: 13.5px;
  border-radius: 2px;
  object-fit: cover;
  box-shadow: 0 0 0 1px var(--app-outline-soft);
}

.line-top .isp {
  flex: none;
  width: 16px;
  height: 16px;
  object-fit: contain;
}

.line-top .isp rect {
  fill: var(--app-ink-faint);
}

.line-top .isp text {
  fill: var(--isp-ink);
  font-size: 10px;
  font-weight: 700;
}

.line-top .isp-broadnet rect {
  fill: var(--isp-broadnet);
}

/* 亚克力卡片里的线路块：不用实色，只叠一层淡淡的墨色和细描边，透出卡片本身 */
.agent-card .line-link {
  background: color-mix(in srgb, var(--app-ink) 4%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--app-ink) 7%, transparent);
}

.agent-card .line-link:hover {
  background: color-mix(in srgb, var(--app-ink) 7%, transparent);
}


/* 线路详情、对比等页面的卡片和指标块：同样的亚克力，一层压一层 */
.card:not(.agent-card),
.tiles > .stat,
.tiles > .tile {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-filter);
  box-shadow:
    inset 0 0 0 1px var(--glass-ring),
    inset 0 1px 0 var(--glass-top),
    var(--glass-drop);
}

/* 小的指标块浮得低一点：阴影收小 */
.tiles > .stat {
  box-shadow:
    inset 0 0 0 1px color-mix(in srgb, var(--app-ink) 8%, transparent),
    inset 0 1px 0 color-mix(in srgb, var(--app-card) 70%, transparent),
    0 6px 14px -8px color-mix(in srgb, var(--app-shadow) 40%, transparent);
}

.topbar {
  background: var(--glass-bar-bg);
  backdrop-filter: var(--glass-bar-filter);
  border-bottom-color: var(--glass-bar-line);
  box-shadow: var(--glass-bar-drop);
}

/* 时间轴：同样的亚克力。有数据的段是半透明的亮底，没数据的段是淡淡的斜纹，整条有细描边和投影 */
.minimap .track {
  background: repeating-linear-gradient(135deg, color-mix(in srgb, var(--app-card) 55%, var(--app-idle)) 0 5px, color-mix(in srgb, var(--app-card) 70%, var(--app-idle)) 5px 10px);
  backdrop-filter: var(--glass-bar-filter);
  box-shadow:
    inset 0 0 0 1px var(--glass-ring),
    var(--glass-drop);
}

.minimap svg rect.has {
  fill: color-mix(in srgb, var(--app-card) 80%, transparent);
}

/* 直接落在背景图上的字（页面标题、分组名、说明）：加一圈和页面底色一样的柔光，免得被图案吃掉 */
body {
  text-shadow: 0 0 8px color-mix(in srgb, var(--app-bg) 90%, transparent), 0 0 2px color-mix(in srgb, var(--app-bg) 70%, transparent);
}

.card,
.pop,
.tiles > .stat,
.tiles > .tile,
.topbar,
button,
input {
  text-shadow: none;
}

/* 时间轴整条做成圆角：轨道、里面的图、选区用同一个半径 */
.minimap .track,
.minimap svg,
.minimap .sel {
  border-radius: 18px;
}

/* 版本、tag：等宽的小字 */
.fact .v.mono-tag {
  font-family: var(--font-mono);
  font-size: 11px;
}

.build-info {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 16px;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
}

/* 总览卡片里的线路标题：名字太长就省略号，右边只放一个短标签，不换行 */
.line-top {
  min-width: 0;
}

.line-top .line-name {
  flex: 1 1 auto;
  min-width: 0;
  white-space: nowrap;
}

.line-top .line-name .arrow {
  flex: none;
}

.line-top .line-name .name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.line-top .line-name .flag,
.line-top .line-name .isp {
  flex: none;
}

.line-top .line-range,
.line-top .chip {
  flex: none;
  white-space: nowrap;
}

/* 悬浮提示弹在卡片右边，会盖到下一张卡片上：每张卡片都有自己的层叠上下文（毛玻璃），所以提示打开的那张要整张抬到兄弟卡片之上。
   只在提示真的打开时才抬，不要鼠标一碰到卡片就抬：z-index 一变，带 backdrop-filter 的整张卡片要重新分层，那一帧底部会闪黑 */
.agent-card:has(.pop.open) {
  z-index: 30;
}

/* ── 总览：节点卡片下面单独的「线路」面板 ── */
.agent-name + .kind-tag {
  font-size: 12px;
}

.lines-panel {
  margin-top: 24px;
}

.cards + .lines-panel {
  margin-top: 16px;
}

.lines-panel .lines-toolbar {
  margin-top: 0;
}

.lines-panel .agent-head .faint {
  font-size: 12px;
}

.line-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
}

.line-card {
  padding: 10px 12px;
}

.line-card .line-name {
  flex-wrap: wrap;
  row-gap: 2px;
}

.line-card .line-name .arrow {
  color: var(--app-ink-faint);
}

/* 线路面板：按三网分组 */
.carrier-group + .carrier-group {
  margin-top: 18px;
}

.carrier-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.carrier-head .carrier-sum {
  display: flex;
  gap: 6px;
  align-items: baseline;
  font-size: 13px;
}

.carrier-head .isp {
  width: 20px;
  height: 20px;
  flex: none;
}

/* 天气（雪、雨）：铺满窗口，和背景图同一层（在背景图后面画、所有内容的下面），不接收鼠标；所以卡片的毛玻璃会把它一起模糊，不会挡住任何组件 */
.weather-layer {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
  /* 不要用 mix-blend-mode（滤色等）：画布在带 backdrop-filter 的卡片后面每帧都在变，再叠一层混合，Chrome 给卡片取背景的时候会整块重新分层，卡片底部就闪黑；边缘的羽化用颜色和透明度做，已经是浅色半透明的，效果和滤色差不多 */
}

@media (max-width: 640px), ((pointer: coarse) and (max-width: 900px)) {
  .weather-layer {
    display: none;
  }
}

/* ── 右下角的「外观」：玻璃小按钮，点开是带分类的设置面板（亚克力同一套变量）；手机上不画雪也不能晃背景，这个也不显示 ── */
.appearance {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 35;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}

.appearance-fab {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  color: var(--app-ink-muted);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-filter);
  box-shadow:
    inset 0 0 0 1px var(--glass-ring),
    inset 0 1px 0 var(--glass-top),
    var(--glass-drop);
  cursor: pointer;
  transition: color 0.15s;
}

.appearance-fab svg {
  transition: transform 0.35s cubic-bezier(0.34, 1.4, 0.64, 1);
}

.appearance-fab:hover,
.appearance-fab[aria-expanded='true'] {
  color: var(--app-ink);
}

.appearance-fab[aria-expanded='true'] svg {
  transform: rotate(60deg);
}

/* 面板：从按钮的位置（右下角）展开 / 收起；一直在 DOM 里，用 data-open 切换，这样收起的时候也有动画 */
.appearance-panel {
  width: 300px;
  padding: 14px 16px 16px;
  border-radius: var(--r-card);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-filter);
  box-shadow:
    inset 0 0 0 1px var(--glass-ring),
    inset 0 1px 0 var(--glass-top),
    var(--glass-drop);
  color: var(--app-ink);
  font-size: 13px;
  transform-origin: bottom right;
  transition:
    opacity 0.22s ease,
    transform 0.28s cubic-bezier(0.2, 0.9, 0.3, 1.15),
    visibility 0s linear 0.28s;
}

.appearance-panel[data-open='false'] {
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px) scale(0.92);
  pointer-events: none;
}

.appearance-panel[data-open='true'] {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition-delay: 0s;
}

.appearance-tabs {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-bottom: 12px;
  padding: 3px;
  border-radius: var(--r-pill);
  background: color-mix(in srgb, var(--app-ink) 8%, transparent);
}

/* 选中的那一格的底：随选中的分类滑过去 */
.appearance-tabs::before {
  content: '';
  position: absolute;
  top: 3px;
  bottom: 3px;
  left: 3px;
  width: calc(50% - 3px);
  border-radius: var(--r-pill);
  background: var(--app-card);
  box-shadow: 0 1px 3px color-mix(in srgb, var(--glass-shade) 25%, transparent);
  transform: translateX(var(--tab-offset, 0));
  transition: transform 0.28s cubic-bezier(0.3, 0.9, 0.3, 1.1);
}

.appearance-tabs[data-tab='background']::before {
  --tab-offset: 100%;
}

.appearance-tabs button {
  position: relative;
  padding: 5px 0;
  border: 0;
  border-radius: var(--r-pill);
  color: var(--app-ink-muted);
  background: none;
  cursor: pointer;
  transition: color 0.2s;
}

.appearance-tabs button[aria-selected='true'] {
  color: var(--app-ink);
  font-weight: 600;
}

/* 切换分类时内容淡入、轻轻上浮；每一行再错开一点 */
.appearance-body {
  display: grid;
  gap: 9px;
}

.appearance-body > * {
  animation: appearance-in 0.32s ease both;
}

.appearance-body > :nth-child(2) { animation-delay: 0.03s; }
.appearance-body > :nth-child(3) { animation-delay: 0.06s; }
.appearance-body > :nth-child(4) { animation-delay: 0.09s; }
.appearance-body > :nth-child(5) { animation-delay: 0.12s; }
.appearance-body > :nth-child(6) { animation-delay: 0.15s; }
.appearance-body > :nth-child(7) { animation-delay: 0.18s; }
.appearance-body > :nth-child(8) { animation-delay: 0.21s; }
.appearance-body > :nth-child(9) { animation-delay: 0.24s; }

@keyframes appearance-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
}

.appearance-body[data-off='true'] .appearance-row:not(.appearance-master) {
  opacity: 0.45;
  pointer-events: none;
}

.appearance-row {
  display: grid;
  grid-template-columns: 52px 1fr 44px;
  align-items: center;
  gap: 8px;
  transition: opacity 0.2s;
}

.appearance-row-switch {
  grid-template-columns: 1fr auto;
}

.appearance-row output {
  text-align: right;
  color: var(--app-ink-muted);
  font-variant-numeric: tabular-nums;
}

.appearance-row input[type='range'] {
  width: 100%;
  accent-color: var(--app-primary);
}

.appearance-switch {
  position: relative;
  display: inline-block;
  width: 34px;
  height: 20px;
}

.appearance-switch input {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}

.appearance-switch span {
  position: absolute;
  inset: 0;
  border-radius: 10px;
  background: color-mix(in srgb, var(--app-ink) 22%, transparent);
  pointer-events: none;
  transition: background 0.2s;
}

.appearance-switch span::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--app-card);
  transition: transform 0.25s cubic-bezier(0.34, 1.4, 0.64, 1);
}

.appearance-switch input:checked + span {
  background: var(--app-primary);
}

.appearance-switch input:checked + span::after {
  transform: translateX(14px);
}

.appearance-row-segment {
  grid-template-columns: 52px 1fr;
}

/* 三选一：连在一起的三个按钮，选中的那个是实心的 */
.appearance-segment {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 2px;
  border-radius: var(--r-pill);
  background: color-mix(in srgb, var(--app-ink) 8%, transparent);
}

.appearance-segment button {
  padding: 3px 0;
  border: 0;
  border-radius: var(--r-pill);
  color: var(--app-ink-muted);
  background: none;
  cursor: pointer;
  transition:
    background 0.2s,
    color 0.2s;
}

.appearance-segment button[aria-pressed='true'] {
  color: var(--app-ink);
  font-weight: 600;
  background: var(--app-card);
  box-shadow: 0 1px 3px color-mix(in srgb, var(--glass-shade) 25%, transparent);
}

.appearance-reset {
  margin-top: 12px;
  width: 100%;
  padding: 6px 0;
  border: 0;
  border-radius: var(--r-pill);
  color: var(--app-ink-muted);
  background: color-mix(in srgb, var(--app-ink) 8%, transparent);
  cursor: pointer;
  transition: opacity 0.2s;
}

.appearance-reset:disabled {
  opacity: 0.4;
  cursor: default;
}

@media (prefers-reduced-motion: reduce) {
  .appearance-panel,
  .appearance-tabs::before,
  .appearance-body > *,
  .appearance-fab svg,
  .appearance-switch span::after {
    animation: none;
    transition: none;
  }
}

@media (max-width: 640px), ((pointer: coarse) and (max-width: 900px)) {
  .appearance {
    display: none;
  }
}

/* 照片的选择：按组分行，每组一个小标题，下面是缩略图，选中的描一圈 */
.appearance-group-title {
  margin-bottom: 4px;
  color: var(--app-ink-faint);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.appearance-choices {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.appearance-choice {
  display: grid;
  gap: 4px;
  padding: 0;
  border: 0;
  color: var(--app-ink-muted);
  background: none;
  cursor: pointer;
  text-align: center;
  font-size: 12px;
}

.appearance-choice img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--r-control);
  box-shadow: inset 0 0 0 1px var(--glass-ring);
  transition:
    box-shadow 0.2s,
    transform 0.2s;
}

.appearance-choice:hover img {
  transform: translateY(-1px);
}

.appearance-choice[aria-pressed='true'] {
  color: var(--app-ink);
  font-weight: 600;
}

.appearance-choice[aria-pressed='true'] img {
  box-shadow:
    0 0 0 2px var(--app-primary),
    0 0 0 4px color-mix(in srgb, var(--app-primary) 25%, transparent);
}