.campus-pet {
  --pet-surface: #142642; --pet-panel: #112038; --pet-text: #e8f3ff;
  --pet-muted: #a0b6cf; --pet-border: #365477; --pet-accent: #72d4e8;
  position: fixed; right: 16px; bottom: 104px; width: 144px; z-index: 85;
  color: var(--pet-text); font: 13px/1.5 "Microsoft YaHei", system-ui, sans-serif;
  pointer-events: none; isolation: isolate;
}
:root[data-theme="day"] .campus-pet {
  --pet-surface: #f2f9ff; --pet-panel: #fff; --pet-text: #26455f;
  --pet-muted: #5d7690; --pet-border: #cedfec; --pet-accent: #167e99;
}
.campus-pet *, .campus-pet *::before, .campus-pet *::after { box-sizing: border-box; }
.campus-pet [hidden] { display: none !important; }
.campus-pet .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.campus-pet button, .campus-pet input, .campus-pet select, .campus-pet textarea { font: inherit; }
.campus-pet button { border: 1px solid var(--pet-border); color: var(--pet-text); background: var(--pet-surface); border-radius: 10px; padding: 7px 10px; cursor: pointer; line-height: 1.4; }
.campus-pet button:hover { border-color: var(--pet-accent); }
.campus-pet button:disabled { opacity: .5; cursor: not-allowed; }
.campus-pet :focus-visible { outline: 3px solid var(--pet-accent); outline-offset: 3px; }
.campus-pet-body { width: 100%; }
.campus-pet-handle-row { display: flex; justify-content: space-between; padding: 0 12px; pointer-events: auto; }
.campus-pet-handle-row button { padding: 0; width: 28px; height: 26px; background: var(--pet-panel); }
.campus-pet [data-pet-drag] { cursor: grab; touch-action: none; }
.campus-pet .campus-pet-model { position: relative; width: 144px; height: 144px; margin: -4px 0 -7px; pointer-events: auto; background: transparent; border: 0; cursor: grab; touch-action: none; user-select: none; }
.campus-pet.is-dragging .campus-pet-model { cursor: grabbing; }
.campus-pet.is-dragging { user-select: none; }
.campus-pet-model canvas { position: relative; display: block; width: 100%; height: 100%; opacity: 0; }
.campus-pet-model.webgl-ready canvas { opacity: 1; }
.campus-pet-model .ai-pet-fallback { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.campus-pet-model.webgl-ready .ai-pet-fallback { opacity: 0; pointer-events: none; }
.campus-pet-shortcuts { display: flex; justify-content: center; gap: 5px; pointer-events: auto; }
.campus-pet-shortcuts button { padding: 6px 9px; border-radius: 18px; box-shadow: 0 2px 10px #0002; }
.campus-pet-bubble { position: absolute; width: 190px; right: 0; bottom: calc(100% + 8px); padding: 9px 12px; border: 1px solid var(--pet-border); background: var(--pet-panel); border-radius: 15px 15px 3px 15px; box-shadow: 0 6px 22px #0002; overflow-wrap: anywhere; }
.campus-pet-restore { pointer-events: auto; display: flex; align-items: center; gap: 4px; box-shadow: 0 4px 15px #0002; cursor: grab; touch-action: none; user-select: none; }
.campus-pet.is-dragging .campus-pet-restore { cursor: grabbing; }
.campus-pet-restore img { width: 28px; height: 28px; object-fit: contain; }
.campus-pet.is-collapsed { width: max-content; }
.campus-pet-panel { position: fixed; display: flex; flex-direction: column; width: 360px; max-height: calc(100dvh - 24px); pointer-events: auto; background: var(--pet-panel); border: 1px solid var(--pet-border); border-radius: 20px; box-shadow: 0 16px 55px #0004; overflow: auto; overscroll-behavior: contain; }
.campus-pet-panel header { display: flex; align-items: center; justify-content: space-between; padding: 15px 16px 10px; }
.campus-pet-panel header strong { font-size: 17px; }
.campus-pet-panel header span { display: block; color: var(--pet-muted); font-size: 11px; }
.campus-pet-panel header button { font-size: 20px; padding: 1px 10px; }
.campus-pet-panel nav { display: flex; gap: 5px; margin: 0 14px 12px; padding: 3px; border-radius: 12px; background: var(--pet-surface); }
.campus-pet-panel nav button { flex: 1; border-color: transparent; background: transparent; }
.campus-pet-panel nav button[aria-pressed="true"] { background: var(--pet-panel); border-color: var(--pet-border); color: var(--pet-accent); }
.campus-pet-chat { min-height: 0; padding: 0 14px 14px; }
.campus-pet-log { height: 200px; min-height: 100px; max-height: 32dvh; overflow: auto; overscroll-behavior: contain; padding: 2px 4px; scrollbar-width: thin; }
.campus-pet-welcome { color: var(--pet-muted); margin: 24px 6px; }
.campus-pet-message { max-width: 93%; margin: 0 0 10px; padding: 8px 11px; background: var(--pet-surface); border-radius: 13px 13px 13px 3px; border: 1px solid var(--pet-border); }
.campus-pet-message.user { margin-left: auto; background: #23889c24; border-radius: 13px 13px 3px 13px; }
.campus-pet-message small { color: var(--pet-muted); font-size: 10px; }
.campus-pet-message p { margin: 4px 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.campus-pet-message button { font-size: 11px; padding: 2px 6px; margin-top: 5px; }
.campus-pet-status { font-size: 11px; color: var(--pet-muted); margin: 8px 0; min-height: 32px; overflow-wrap: anywhere; }
.campus-pet form { display: flex; align-items: stretch; gap: 7px; }
.campus-pet textarea { flex: 1; width: 0; resize: vertical; min-height: 54px; max-height: 130px; padding: 9px; border-radius: 10px; border: 1px solid var(--pet-border); background: var(--pet-surface); color: var(--pet-text); }
.campus-pet textarea::placeholder { color: var(--pet-muted); }
.campus-pet form button { background: #178aa3; color: white; border-color: transparent; }
.campus-pet-voice-tools { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 9px; }
.campus-pet-voice-tools button { padding: 5px 8px; font-size: 11px; }
.campus-pet [data-pet-voice][aria-pressed="true"] { border-color: #f29898; color: #df7a7a; }
.campus-pet-settings { margin-top: 10px; color: var(--pet-muted); font-size: 11px; }
.campus-pet-settings summary { cursor: pointer; }
.campus-pet-settings label { display: flex; align-items: center; gap: 6px; margin: 8px 0; }
.campus-pet-settings input { width: auto; accent-color: #178aa3; }
.campus-pet-settings select { min-width: 0; flex: 1; color: var(--pet-text); background: var(--pet-surface); border: 1px solid var(--pet-border); border-radius: 7px; padding: 5px; font-size: 11px; }
.campus-pet-play { padding: 0 14px 14px; }
.campus-pet-play p { color: var(--pet-muted); font-size: 12px; }
.campus-pet-actions { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 7px; }
.campus-pet-actions button { display: grid; justify-items: center; gap: 4px; padding: 9px 3px; font-size: 12px; }
.campus-pet-actions button span { font-size: 22px; }
.campus-pet[data-activity="listening"] .campus-pet-model, .campus-pet[data-activity="recording"] .campus-pet-model { filter: drop-shadow(0 0 7px #52caba88); }
.campus-pet[data-activity="speaking"] .campus-pet-model { filter: drop-shadow(0 0 7px #99b9ff88); }
@media(max-width: 700px) {
  .campus-pet { width: 110px; right: 10px; bottom: 84px; }
  .campus-pet .campus-pet-model { width: 110px; height: 110px; }
  .campus-pet-handle-row { padding: 0 3px; }
  .campus-pet-shortcuts { gap: 3px; }
  .campus-pet-shortcuts button { font-size: 11px; padding: 5px 6px; }
  .campus-pet-bubble { width: 160px; }
}