:root {
  color-scheme: light dark;
  --color-text: #1a1a1a;
  --color-secondary: #7a7a7a;
  --color-faint: #b0b0b0;
  --color-border: #ececec;
  --color-bg: #ffffff;
  --chip-active: #f2f2f2;
  --space: 8px;
  --stage: 56rem;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-text: #f3f3f3;
    --color-secondary: #9a9a9a;
    --color-faint: #6e6e6e;
    --color-border: #2a2a2a;
    --color-bg: #111111;
    --chip-active: #222222;
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --color-text: #f3f3f3;
  --color-secondary: #9a9a9a;
  --color-faint: #6e6e6e;
  --color-border: #2a2a2a;
  --color-bg: #111111;
  --chip-active: #222222;
}

:root[data-theme="light"] {
  color-scheme: light;
}

:root.theme-transition,
:root.theme-transition *,
:root.theme-transition *::before,
:root.theme-transition *::after {
  transition: background-color 0.35s ease, color 0.35s ease, border-color 0.35s ease, opacity 0.35s ease !important;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  min-height: 100%;
  background: var(--color-bg);
  color: var(--color-text);
}

body {
  font-family:
    "Noto Serif SC",
    "Source Han Serif SC",
    "Songti SC",
    "STSong",
    "SimSun",
    serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button {
  font: inherit;
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.hero img,
.strip-thumb img {
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-user-drag: none;
}

.page {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  padding: clamp(1.25rem, 3.5vh, 2.5rem) 1.5rem 5rem;
}

.page.is-empty {
  align-items: center;
}

.stage {
  width: min(var(--stage), 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero {
  width: min(58vh, 100%);
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-frame {
  position: relative;
  width: 100%;
  height: 100%;
  line-height: 0;
  container-type: inline-size;
}

.hero img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  object-position: center;
  image-rendering: auto;
  image-rendering: high-quality;
  opacity: 1;
  transition: opacity 0.25s ease;
}

.hero img.is-swap {
  opacity: 0;
}

.hero-mark {
  position: absolute;
  right: clamp(0.35rem, 3.2cqi, 0.8rem);
  bottom: clamp(0.28rem, 2.8cqi, 0.7rem);
  z-index: 1;
  pointer-events: none;
  user-select: none;
  font-weight: 900;
  font-size: clamp(0.68rem, 6.2cqi, 1.05rem);
  letter-spacing: -0.03em;
  line-height: 1;
  color: #fff;
  opacity: 0.23;
  text-shadow:
    0 0 2px rgba(0, 0, 0, 0.85),
    0 1px 3px rgba(0, 0, 0, 0.7),
    0 0 8px rgba(0, 0, 0, 0.4);
  transform: scaleX(0.92);
  transform-origin: right bottom;
  transition: opacity 0.25s ease;
}

.hero-frame:has(img.is-swap) .hero-mark {
  opacity: 0;
}

.intro {
  width: 100%;
  text-align: center;
  margin-top: 1.5rem;
}

.title {
  font-weight: 900;
  font-size: clamp(2rem, 4vw, 3.15rem);
  line-height: 1.12;
  letter-spacing: -0.035em;
  transform: scaleX(0.88);
  transform-origin: center;
}

.title.is-empty,
.title.is-status {
  color: var(--color-secondary);
  font-weight: 700;
  font-size: clamp(1.35rem, 2.4vw, 1.75rem);
  letter-spacing: -0.02em;
  transform: none;
}

.meta {
  margin-top: 0.5rem;
  color: var(--color-secondary);
  font-size: 0.9375rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  min-height: 1.4em;
}

.meta button {
  background: none;
  border: 0;
  padding: 0;
  color: inherit;
  cursor: pointer;
  font: inherit;
  transition: color 0.15s ease;
}

.meta button:hover {
  color: var(--color-text);
}

.meta .sep {
  color: var(--color-faint);
  margin: 0 0.35em;
}

.tags {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.45rem;
  margin-top: 1.5rem;
}

.chip {
  appearance: none;
  display: inline-flex;
  align-items: baseline;
  gap: 0.3em;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-secondary);
  border-radius: 999px;
  padding: 0.28rem 0.8rem;
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.4;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.chip:hover {
  color: var(--color-text);
}

.chip.is-active {
  background: var(--chip-active);
  border-color: var(--color-border);
  color: var(--color-text);
  font-weight: 700;
}

.chip .count {
  color: var(--color-faint);
  font-variant-numeric: tabular-nums;
}

.chip.is-active .count {
  color: var(--color-secondary);
}

.strip {
  width: 100%;
  margin-top: 2.75rem;
}

.strip-scroller {
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
}

.strip-scroller::-webkit-scrollbar {
  display: none;
}

.strip-track {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
  width: max-content;
  min-width: 100%;
  padding: 0.25rem 0 0.5rem;
}

.strip-item {
  flex: 0 0 5.75rem;
  width: 5.75rem;
  text-align: center;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  color: inherit;
}

.strip-when {
  color: var(--color-faint);
  font-variant-numeric: tabular-nums;
  margin-bottom: 0.55rem;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: -0.02em;
}

.strip-thumb {
  width: 5.75rem;
  height: 5.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
}

.strip-thumb img {
  max-width: 84%;
  max-height: 84%;
  width: auto;
  height: auto;
  object-fit: contain;
  opacity: 0.5;
  transition: opacity 0.2s ease;
}

.strip-item:hover .strip-thumb img,
.strip-item.is-active .strip-thumb img {
  opacity: 1;
}

.strip-name {
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--color-faint);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transform: scaleX(0.9);
  transform-origin: center;
}

.strip-item.is-active .strip-name {
  color: var(--color-text);
}

.strip-item.is-active .strip-when {
  color: var(--color-secondary);
}

.pill {
  background: var(--color-border);
  border-radius: 999px;
}

.theme-toggle {
  position: fixed;
  z-index: 26;
  bottom: calc(1.25rem + env(safe-area-inset-bottom));
  left: 1.25rem;
  border: none;
  color: var(--color-secondary);
  padding: 0.35rem 0.85rem;
  font-size: 0.9375rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.4;
  cursor: pointer;
  transition: color 0.15s ease;
}

.theme-toggle:hover {
  color: var(--color-text);
}

.chip:focus-visible,
.theme-toggle:focus-visible,
.strip-item:focus-visible,
.meta button:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  .hero img,
  .hero-mark,
  .strip-thumb img,
  .chip,
  .meta button,
  .theme-toggle,
  :root.theme-transition,
  :root.theme-transition *,
  :root.theme-transition *::before,
  :root.theme-transition *::after {
    transition: none !important;
  }
}

@media (max-width: 40rem) {
  .page {
    padding: 1.15rem 1rem 4.75rem;
    align-items: stretch;
  }

  .hero {
    width: 100%;
  }

  .strip.is-single .strip-track {
    justify-content: center;
  }

  .intro {
    margin-top: 1.25rem;
  }

  .title {
    font-size: clamp(1.7rem, 8.2vw, 2.2rem);
    transform: scaleX(0.9);
  }

  .tags {
    margin-top: 1.2rem;
    gap: 0.35rem;
  }

  .chip {
    padding: 0.22rem 0.62rem;
    font-size: 0.75rem;
  }

  .strip {
    margin-top: 2rem;
  }

  .strip-track {
    justify-content: flex-start;
    gap: 1rem;
    padding-inline: 0.15rem;
  }

  .strip-item,
  .strip-thumb {
    flex-basis: 4.75rem;
    width: 4.75rem;
  }

  .strip-thumb {
    height: 4.75rem;
  }
}