:root {
  color-scheme: light;
  font-family: "Avenir Next", "Noto Sans CJK SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --page-bg: #f8efff;
  --panel-bg: rgba(255, 255, 255, 0.78);
  --panel-border: rgba(156, 107, 255, 0.12);
  --panel-shadow: 0 18px 40px rgba(149, 102, 233, 0.12);
  --text: #302357;
  --accent: #9f73ff;
  --accent-2: #ff8b4d;
  --accent-3: #ff79be;
  --danger: #db5c7a;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 18% 16%, rgba(255, 214, 101, 0.52), transparent 19%),
    radial-gradient(circle at 84% 18%, rgba(255, 121, 190, 0.28), transparent 21%),
    radial-gradient(circle at 76% 82%, rgba(159, 115, 255, 0.24), transparent 22%),
    linear-gradient(180deg, #fbf5ff 0%, var(--page-bg) 100%);
  color: var(--text);
}

button,
input {
  font: inherit;
}

button svg {
  width: 1.35rem;
  height: 1.35rem;
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.4;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.app-shell {
  height: 100vh;
  height: 100dvh;
  width: min(1040px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-rows: auto 1fr;
  gap: clamp(14px, 2.4vw, 24px);
  padding: max(44px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) max(12px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
}

.control-panel,
.preview-stage {
  min-width: 0;
}

.control-panel {
  display: flex;
  justify-content: center;
  min-height: 52px;
}

.hanzi-form {
  width: min(100%, 28rem);
  display: grid;
  justify-items: center;
  gap: 6px;
}

.input-row {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, max-content) 4rem 3.5rem;
  gap: clamp(8px, 2vw, 12px);
  align-items: center;
  justify-content: center;
}

.input-prompt {
  color: var(--text);
  font-family: "Noto Sans CJK SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: clamp(0.95rem, 2.5vw, 1rem);
  font-weight: 800;
  white-space: nowrap;
  min-width: 0;
}

.input-row input {
  -webkit-appearance: none;
  appearance: none;
  display: block;
  width: 100%;
  min-width: 0;
  height: clamp(48px, 7vw, 56px);
  padding: 0;
  border: 2px solid rgba(156, 107, 255, 0.18);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--text);
  text-align: center;
  font-size: clamp(1.65rem, 5vw, 1.95rem);
  font-weight: 700;
  line-height: normal;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.input-row input:focus {
  outline: 0;
  border-color: rgba(156, 107, 255, 0.5);
  box-shadow: 0 0 0 4px rgba(156, 107, 255, 0.14);
}

.input-row button {
  height: clamp(48px, 7vw, 56px);
  width: 100%;
  min-width: 48px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 15px;
  background: linear-gradient(135deg, var(--accent-2), var(--accent-3));
  color: #fff;
  cursor: pointer;
  box-shadow: 0 12px 24px rgba(255, 139, 77, 0.24);
}

.hanzi-form:has(.status-message.is-error) .input-row input {
  border-color: rgba(219, 92, 122, 0.56);
  box-shadow: 0 0 0 4px rgba(219, 92, 122, 0.12);
}

.hanzi-form:has(.status-message.is-ok) .input-row input {
  border-color: rgba(159, 115, 255, 0.44);
}

.preview-stage {
  min-height: 0;
  display: grid;
  grid-template-rows: 1fr;
  align-items: stretch;
}

.preview-frame {
  min-height: 0;
  container-type: size;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: visible;
}

.preview-frame::before {
  content: none;
}

.preview-frame.is-loading::after {
  content: "";
  position: absolute;
  bottom: 18px;
  left: 50%;
  width: 1.15rem;
  height: 1.15rem;
  border: 3px solid rgba(159, 115, 255, 0.22);
  border-top-color: var(--accent);
  border-radius: 999px;
  transform: translateX(-50%);
  animation: spin 0.8s linear infinite;
}

.play-button {
  position: absolute;
  z-index: 2;
  top: 1.2rem;
  left: 1.2rem;
  width: 4.4rem;
  height: 4.4rem;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  color: #fff;
  cursor: pointer;
  box-shadow: 0 16px 32px rgba(159, 115, 255, 0.2);
  backdrop-filter: blur(8px);
}

.play-button::before {
  content: "";
  position: absolute;
  inset: 0.5rem;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--accent), var(--accent-3), #ffd667);
}

.play-button svg {
  position: relative;
  z-index: 1;
  width: 2rem;
  height: 2rem;
  fill: currentColor;
  stroke: none;
  transform: translateX(0.12rem);
}

.play-button[hidden] {
  display: none;
}

.character-board {
  position: relative;
  z-index: 1;
  width: min(720px, 100%);
  max-width: 100%;
  aspect-ratio: 1;
  background:
    linear-gradient(45deg, transparent calc(50% - 0.5px), rgba(170, 132, 132, 0.34) calc(50% - 0.5px), rgba(170, 132, 132, 0.34) calc(50% + 0.5px), transparent calc(50% + 0.5px)),
    linear-gradient(-45deg, transparent calc(50% - 0.5px), rgba(170, 132, 132, 0.34) calc(50% - 0.5px), rgba(170, 132, 132, 0.34) calc(50% + 0.5px), transparent calc(50% + 0.5px)),
    linear-gradient(90deg, transparent calc(50% - 0.5px), rgba(150, 95, 95, 0.32) calc(50% - 0.5px), rgba(150, 95, 95, 0.32) calc(50% + 0.5px), transparent calc(50% + 0.5px)),
    linear-gradient(180deg, transparent calc(50% - 0.5px), rgba(150, 95, 95, 0.32) calc(50% - 0.5px), rgba(150, 95, 95, 0.32) calc(50% + 0.5px), transparent calc(50% + 0.5px)),
    #fff;
  border: 1px solid rgba(132, 86, 86, 0.34);
  box-shadow: 0 12px 28px rgba(124, 105, 171, 0.12);
}

#gif-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

@supports (width: 100cqh) {
  .character-board {
    width: min(720px, 100cqh);
    max-width: 100%;
  }
}

@keyframes spin {
  to {
    transform: translateX(-50%) rotate(360deg);
  }
}

@media (min-width: 721px) and (max-width: 1024px) {
  .app-shell {
    width: min(100%, 860px);
    padding: max(52px, env(safe-area-inset-top)) max(18px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(18px, env(safe-area-inset-left));
  }

  .hanzi-form {
    width: min(100%, 30rem);
  }

  .input-row {
    grid-template-columns: minmax(0, max-content) 4.25rem 3.75rem;
  }
}

@media (max-width: 720px) {
  .app-shell {
    width: 100%;
    padding: max(34px, env(safe-area-inset-top)) max(10px, env(safe-area-inset-right)) max(10px, env(safe-area-inset-bottom)) max(10px, env(safe-area-inset-left));
    gap: 14px;
  }

  .control-panel {
    min-height: 54px;
  }

  .hanzi-form {
    width: 100%;
  }

  .input-row {
    grid-template-columns: max-content minmax(3.5rem, 3.8rem) minmax(3.25rem, 3.5rem);
  }

  .input-row input,
  .input-row button {
    height: 54px;
  }

  .play-button {
    top: 0.8rem;
    left: 0.8rem;
    width: 3.8rem;
    height: 3.8rem;
  }

  .play-button svg {
    width: 1.75rem;
    height: 1.75rem;
  }
}

@media (max-width: 390px) {
  .app-shell {
    padding-inline: max(8px, env(safe-area-inset-left)) max(8px, env(safe-area-inset-right));
  }

  .character-board {
    width: min(calc(100vw - 24px), 100cqh);
  }
}

@media (max-height: 560px) and (orientation: landscape) {
  .app-shell {
    grid-template-columns: minmax(11rem, 15rem) minmax(0, 1fr);
    grid-template-rows: 1fr;
    align-items: stretch;
    width: min(100%, 980px);
    padding: max(8px, env(safe-area-inset-top)) max(10px, env(safe-area-inset-right)) max(8px, env(safe-area-inset-bottom)) max(10px, env(safe-area-inset-left));
  }

  .control-panel {
    align-items: center;
  }

  .input-row {
    grid-template-columns: 1fr 3.25rem 3rem;
  }

  .input-prompt {
    white-space: normal;
    line-height: 1.15;
  }

  .character-board {
    width: min(calc(100vw - 40px), 100cqh);
  }

  .play-button {
    top: 0.6rem;
    left: 0.6rem;
    width: 3.2rem;
    height: 3.2rem;
  }
}