.demo-shell {
  width: min(680px, calc(100% - 32px));
  margin: 0 auto;
  padding: 26px 0 140px;
}

.demo-badge {
  font-size: 11px;
  color: #C7D2FE;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid rgba(129, 140, 248, 0.35);
  background: rgba(99, 102, 241, 0.14);
  letter-spacing: 1px;
}

/* 标签页 */
.tabs {
  display: flex;
  gap: 6px;
  padding: 5px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(20, 27, 45, 0.55);
  margin-bottom: 26px;
}

.tab {
  flex: 1;
  height: 38px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.tab.on {
  background: rgba(99, 102, 241, 0.3);
  color: #E0E7FF;
}

/* 通用 */
.demo-head {
  margin-bottom: 22px;
}

.demo-date {
  font-size: 12px;
  color: var(--dim);
  letter-spacing: 1px;
}

.demo-head h1 {
  margin: 8px 0 0;
  font-size: 27px;
  line-height: 1.35;
  font-weight: 650;
}

.card {
  padding: 20px;
  margin-bottom: 16px;
}

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

.label {
  font-size: 13px;
  color: var(--muted);
}

.label b {
  color: var(--text);
  font-weight: 600;
}

.hint {
  margin: 5px 0 0;
  font-size: 11px;
  line-height: 1.8;
  color: var(--dim);
}

.divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.06);
  margin: 16px 0;
}

.footnote {
  margin: 22px 0 0;
  font-size: 11px;
  line-height: 1.8;
  color: var(--dim);
  text-align: center;
}

.link-btn {
  padding: 0;
  border: 0;
  background: none;
  color: var(--dim);
  font-family: inherit;
  font-size: 11px;
  text-decoration: underline;
  cursor: pointer;
}

.link-btn.right {
  margin-left: auto;
}

.link-btn:hover {
  color: var(--muted);
}

/* 首页 */
.time-input {
  width: 164px;
  height: 42px;
  padding: 0 8px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(8, 11, 20, 0.7);
  color: var(--text);
  font-family: inherit;
  font-size: 17px;
  font-weight: 600;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.time-input::-webkit-calendar-picker-indicator {
  filter: invert(0.7);
}

.chips {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.chip {
  flex: 1;
  height: 36px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(8, 11, 20, 0.5);
  color: var(--muted);
  font-family: inherit;
  font-size: 12px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.chip.on {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.9), rgba(129, 140, 248, 0.75));
  border-color: rgba(165, 180, 252, 0.4);
  color: #F8FAFC;
}

.roll-label {
  margin-top: 8px;
  font-size: 11px;
  color: #A5B4FC;
}

.slots {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.slot {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 12px 0;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(8, 11, 20, 0.5);
}

.slot.passed {
  opacity: 0.4;
}

.slot b {
  font-size: 21px;
  font-variant-numeric: tabular-nums;
}

.slot span {
  font-size: 10px;
  color: var(--muted);
}

.now-main {
  font-size: 13px;
  color: #C7D2FE;
}

.now-sub {
  margin-top: 5px;
  font-size: 11px;
  color: var(--dim);
}

.dial-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 200px;
  margin: 18px 0 10px;
}

.halo {
  position: absolute;
  width: 210px;
  height: 210px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.32), rgba(99, 102, 241, 0) 68%);
}

.dial {
  position: relative;
  width: 164px;
  height: 164px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: linear-gradient(150deg, #6D6FF5, #4F46E5);
  box-shadow: 0 22px 60px rgba(79, 70, 229, 0.4);
  color: #F8FAFC;
  font-family: inherit;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: transform 0.15s ease, background 0.3s ease;
}

.dial:active {
  transform: scale(0.98);
}

.dial.sleeping {
  background: linear-gradient(150deg, #6366F1, #4338CA);
}

.dial.done {
  background: linear-gradient(150deg, #334155, #141B2D);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  cursor: default;
}

.dial-title {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 1px;
}

.dial-sub {
  font-size: 11px;
  color: rgba(241, 245, 249, 0.72);
  font-variant-numeric: tabular-nums;
}

.dial.done .dial-title {
  color: #94A3B8;
}

.done-grid {
  display: flex;
}

.done-grid div {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.done-grid span {
  font-size: 11px;
  color: var(--dim);
}

.done-grid b {
  font-size: 17px;
  font-variant-numeric: tabular-nums;
}

.done-card .link-btn {
  display: block;
  margin: 14px auto 0;
}

/* 回顾 */
.metrics {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
}

.metric {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 16px 8px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(20, 27, 45, 0.72);
}

.metric span {
  font-size: 11px;
  color: var(--dim);
}

.metric b {
  font-size: 23px;
  font-variant-numeric: tabular-nums;
}

.metric b.small {
  font-size: 16px;
  padding-top: 5px;
}

.week-line {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px 4px;
  font-size: 12px;
  color: var(--muted);
}

.dot-sep {
  color: #475569;
}

.seg {
  display: flex;
  padding: 3px;
  border-radius: 10px;
  background: rgba(8, 11, 20, 0.6);
  border: 1px solid var(--line);
}

.seg-item {
  padding: 5px 10px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--dim);
  font-family: inherit;
  font-size: 11px;
  cursor: pointer;
}

.seg-item.on {
  background: rgba(99, 102, 241, 0.28);
  color: #C7D2FE;
}

.heatmap-wrap {
  max-width: 430px;
  margin: 16px auto 0;
}

.heat-week {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  margin-bottom: 6px;
}

.heat-week span {
  font-size: 10px;
  color: #475569;
  text-align: center;
}

.heatmap {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}

.heat-cell {
  aspect-ratio: 1;
  border-radius: 6px;
  background: rgba(148, 163, 184, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.04);
  cursor: pointer;
}

.heat-cell.l1 { background: #312E81; }
.heat-cell.l2 { background: #4338CA; }
.heat-cell.l3 { background: #6366F1; }
.heat-cell.l4 { background: #818CF8; }
.heat-cell.l5 { background: #A5B4FC; }
.heat-cell.pad { background: transparent; border-color: transparent; cursor: default; }

.heat-legend {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-top: 14px;
  font-size: 10px;
  color: #475569;
}

.heat-legend i {
  width: 10px;
  height: 10px;
  border-radius: 3px;
}

.heat-legend .l1 { background: #312E81; }
.heat-legend .l2 { background: #4338CA; }
.heat-legend .l3 { background: #6366F1; }
.heat-legend .l4 { background: #818CF8; }
.heat-legend .l5 { background: #A5B4FC; }

.tag {
  font-size: 10px;
  color: var(--dim);
  padding: 3px 9px;
  border-radius: 20px;
  border: 1px solid var(--line);
}

.fact {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.9;
  color: #E2E8F0;
}

/* 环境音 */
.search input {
  width: 100%;
  height: 42px;
  padding: 0 16px;
  border-radius: 21px;
  border: 1px solid var(--line);
  background: rgba(20, 27, 45, 0.72);
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  outline: none;
}

.search input::placeholder {
  color: #475569;
}

.search input:focus {
  border-color: rgba(129, 140, 248, 0.6);
}

.cats {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 12px 0 16px;
}

.cat {
  flex: none;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(20, 27, 45, 0.6);
  color: var(--muted);
  font-family: inherit;
  font-size: 12px;
  cursor: pointer;
}

.cat.on {
  background: rgba(99, 102, 241, 0.28);
  border-color: rgba(129, 140, 248, 0.42);
  color: #C7D2FE;
}

.audio-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.audio-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(20, 27, 45, 0.66);
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.audio-row:hover {
  background: rgba(20, 27, 45, 0.9);
}

.audio-row.on {
  background: rgba(49, 46, 129, 0.42);
  border-color: rgba(129, 140, 248, 0.34);
}

.audio-orb {
  width: 42px;
  height: 42px;
  flex: none;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, rgba(99, 102, 241, 0.5), rgba(129, 140, 248, 0.18));
  border: 1px solid rgba(129, 140, 248, 0.24);
  font-size: 15px;
  color: #E0E7FF;
}

.audio-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.audio-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.audio-title {
  font-size: 14px;
  color: var(--text);
}

.audio-cat {
  padding: 1px 7px;
  border-radius: 10px;
  background: rgba(129, 140, 248, 0.12);
  border: 1px solid rgba(129, 140, 248, 0.2);
  font-size: 9px;
  color: #A5B4FC;
}

.audio-sub {
  font-size: 11px;
  color: var(--dim);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.audio-state {
  flex: none;
  font-size: 11px;
  color: var(--dim);
}

.audio-state.playing {
  color: #A5B4FC;
}

.audio-state.cached {
  color: var(--ok);
}

.empty-line {
  padding: 30px 0;
  text-align: center;
  font-size: 12px;
  color: var(--dim);
}

.cache-note {
  margin-top: 18px;
}

/* 播放条 */
.player {
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  z-index: 60;
  width: min(640px, calc(100% - 24px));
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(11, 18, 32, 0.94);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.player-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.player-main b {
  font-size: 13px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.player-main span {
  font-size: 10px;
  color: var(--dim);
}

.player-btn,
.player-close {
  flex: none;
  height: 32px;
  padding: 0 14px;
  border-radius: 16px;
  border: 1px solid rgba(129, 140, 248, 0.32);
  background: rgba(99, 102, 241, 0.24);
  color: #C7D2FE;
  font-family: inherit;
  font-size: 12px;
  cursor: pointer;
}

.player-close {
  padding: 0 10px;
  background: transparent;
  border-color: var(--line);
  color: var(--dim);
}

/* 解锁弹窗 */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal[hidden] {
  display: none;
}

.modal-mask {
  position: absolute;
  inset: 0;
  background: rgba(3, 7, 18, 0.74);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}

.modal-card {
  position: relative;
  width: min(380px, 100%);
  padding: 26px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: #141B2D;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.55);
  animation: fadeIn 0.2s ease;
}

.modal-bar {
  width: 52px;
  height: 4px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.12);
  margin: 0 auto 20px;
}

.modal-card h2 {
  margin: 0;
  font-size: 19px;
}

.modal-card p {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

.btn.full {
  width: 100%;
  margin-top: 18px;
}

.modal-note {
  font-size: 10px !important;
  color: var(--dim) !important;
  text-align: center;
}

@media (max-width: 640px) {
  .demo-head h1 {
    font-size: 23px;
  }

  .metric b {
    font-size: 19px;
  }

  .player {
    bottom: 10px;
  }
}