/* 伴学精灵的房间。只换颜色，不改布局。小狐阿星沿用默认暖色。 */
html[data-pet-theme="robo"] {
  --cream: #F4F7FC;
  --orange: #4338CA;
  --orange-strong: #0C8CA6;
  --orange-bright: #6D5EF5;
  --orange-soft: #F1EEFF;
  --ink: #241C3A;
  --ink-light: #6B647C;
  --surface-muted: #F3F1FA;
  --surface-raised: rgba(255, 255, 255, .96);
  --border: #E6E2F3;
  --border-strong: #D9D4F5;
  --focus-ring: #5B4DFF;
  --blue: #0C8CA6;
  --blue-soft: #E7F9FF;
  --shadow-sm: 0 2px 8px rgba(67, 56, 160, .06);
  --shadow-md: 0 12px 32px rgba(67, 56, 160, .08);
  --shadow-lg: 0 18px 48px rgba(67, 56, 160, .10);
  --room: #F4F7FC;
  --room-size: 28px 28px, 28px 28px, auto, auto;
  --room-layers:
    linear-gradient(rgba(91, 77, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91, 77, 255, .045) 1px, transparent 1px),
    radial-gradient(circle at 8% 0%, rgba(20, 200, 230, .20), transparent 34%),
    radial-gradient(circle at 96% 100%, rgba(255, 77, 154, .08), transparent 30%);
  --signal: #14C8E6;
  --signal-ink: #08323A;
  --pet-bubble: #F4FCFF;
  --pet-line: #B8F4FF;
  --pet-line-strong: #9AEFFF;
  --kid-bubble: #F1EEFF;
  --kid-line: #E0DAFF;
  --panel: #F7F8FF;
  --panel-line: #D5D0EE;
  --nav-chip: #F4F2FB;
  --track: #E4E0F2;
  --locked-bg: #F7F8FC;
  --locked-ink: #A39BB8;
  --streak-a: #FF4D9A;
  --streak-b: #FFC53D;
  --streak-soft: #FFF0F7;
  --streak-ink: #C4266E;
  --streak-line: #FFD6EA;
  --btn-end: #14C8E6;
  --glow: 20, 200, 230;
  --shade: 67, 56, 160;
  --mascot-a: #F3FBFF;
  --mascot-b: #F3F0FF;
  --face: #E7F9FF;
  --avatar-pet: #D7F8FF;
  --avatar-kid: #E4DEFF;
  --header-b: rgba(243, 240, 255, .94);
  --my-b: #F3F0FF;
  --brand-b: #E7E4FF;
  --modal: #F7F8FC;
  --modal-head: #F3F0FF;
}

html[data-pet-theme="dino"] {
  --cream: #F3FBF4;
  --orange: #146C32;
  --orange-strong: #0E7A38;
  --orange-bright: #1F9A45;
  --orange-soft: #E5F6E4;
  --ink: #1C3324;
  --ink-light: #5C7264;
  --surface-muted: #EAF6EC;
  --surface-raised: rgba(255, 255, 255, .96);
  --border: #D3E8D6;
  --border-strong: #B7D8BC;
  --focus-ring: #1F9A45;
  --blue: #0E7A38;
  --blue-soft: #E7F8EA;
  --shadow-sm: 0 2px 8px rgba(24, 90, 40, .06);
  --shadow-md: 0 12px 32px rgba(24, 90, 40, .08);
  --shadow-lg: 0 18px 48px rgba(24, 90, 40, .10);
  --room: #F3FBF4;
  --room-size: auto, auto;
  --room-layers:
    radial-gradient(circle at 10% 0%, rgba(46, 174, 85, .22), transparent 36%),
    radial-gradient(circle at 92% 100%, rgba(240, 180, 41, .18), transparent 32%);
  --signal: #2EAE55;
  --signal-ink: #083018;
  --pet-bubble: #F4FFF6;
  --pet-line: #9BE6AE;
  --pet-line-strong: #7AD992;
  --kid-bubble: #FFF8DC;
  --kid-line: #F0D98A;
  --panel: #F6FBF4;
  --panel-line: #CDE6D2;
  --nav-chip: #F3F8F1;
  --track: #D5E8D8;
  --locked-bg: #F7FBF6;
  --locked-ink: #8AA392;
  --streak-a: #FF6B93;
  --streak-b: #FFC53D;
  --streak-soft: #FFF0F4;
  --streak-ink: #C4266E;
  --streak-line: #FFD0DE;
  --btn-end: #0E7A38;
  --glow: 46, 174, 85;
  --shade: 24, 90, 40;
  --mascot-a: #F3FFF4;
  --mascot-b: #FFF8E4;
  --face: #E7F8EA;
  --avatar-pet: #D9F8E2;
  --avatar-kid: #FFF1C2;
  --header-b: rgba(232, 248, 220, .94);
  --my-b: #F3FFF4;
  --brand-b: #E5F6E4;
  --modal: #F7FBF6;
  --modal-head: #EAF6EC;
}

html[data-pet-theme="cat"] {
  --cream: #FBF6F1;
  --orange: #5B3DB8;
  --orange-strong: #8A6408;
  --orange-bright: #6B46C1;
  --orange-soft: #F3EEFF;
  --ink: #2C2140;
  --ink-light: #6E6480;
  --surface-muted: #F6F0EA;
  --surface-raised: rgba(255, 255, 255, .96);
  --border: #E7D9CC;
  --border-strong: #D9C6B4;
  --focus-ring: #6B46C1;
  --blue: #8A6408;
  --blue-soft: #FFF6DC;
  --shadow-sm: 0 2px 8px rgba(70, 42, 110, .06);
  --shadow-md: 0 12px 32px rgba(70, 42, 110, .08);
  --shadow-lg: 0 18px 48px rgba(70, 42, 110, .10);
  --room: #FBF6F1;
  --room-size: 22px 22px, auto, auto;
  --room-layers:
    radial-gradient(circle at 11px 11px, rgba(224, 168, 48, .55) 1.1px, transparent 1.7px),
    radial-gradient(circle at 6% 0%, rgba(120, 78, 210, .16), transparent 34%),
    radial-gradient(circle at 94% 92%, rgba(224, 130, 50, .14), transparent 30%);
  --signal: #E6B325;
  --signal-ink: #3A2A08;
  --pet-bubble: #FFFDF8;
  --pet-line: #F0D48A;
  --pet-line-strong: #E6C56A;
  --kid-bubble: #F4EEFF;
  --kid-line: #DDD0F7;
  --panel: #FBF7FF;
  --panel-line: #E4D8F4;
  --nav-chip: #F7F1EA;
  --track: #E6D9CC;
  --locked-bg: #FBF7F4;
  --locked-ink: #A394A8;
  --streak-a: #C23B4A;
  --streak-b: #E08A2A;
  --streak-soft: #FFF0F2;
  --streak-ink: #9A2340;
  --streak-line: #F3C9D0;
  --btn-end: #D4652A;
  --glow: 224, 168, 48;
  --shade: 70, 42, 110;
  --mascot-a: #FFF6EE;
  --mascot-b: #F4EEFF;
  --face: #FFF1DC;
  --avatar-pet: #FFE8C8;
  --avatar-kid: #E6D9FF;
  --header-b: rgba(243, 232, 255, .94);
  --my-b: #F6F0FF;
  --brand-b: #F3EEFF;
  --modal: #FBF7F4;
  --modal-head: #F4EEFF;
}

html[data-pet-theme],
html[data-pet-theme] body {
  background: var(--room);
  color: var(--ink);
}

html[data-pet-theme] .app-shell {
  background: var(--room-layers), var(--room);
  background-size: var(--room-size);
}

html[data-pet-theme] .phone {
  background: transparent;
}

html[data-pet-theme] .web-navbar {
  border-bottom-color: var(--border);
  box-shadow: 0 4px 20px rgba(var(--shade), .05);
}

html[data-pet-theme] .brand-avatar {
  background: linear-gradient(145deg, #fff, var(--brand-b));
  box-shadow: 0 6px 14px rgba(var(--shade), .18), inset 0 0 0 1px #fff;
}

html[data-pet-theme] .brand-badge,
html[data-pet-theme] .btn-pet-nav,
html[data-pet-theme] .btn-main,
html[data-pet-theme] .send-round-btn,
html[data-pet-theme] .banner-pill-btn.challenge,
html[data-pet-theme] .stage-title-badge,
html[data-pet-theme] .pet-lv-pill,
html[data-pet-theme] .learn-companion-bar .l-cheer-btn,
html[data-pet-theme] .scaffold-badge {
  background: linear-gradient(135deg, var(--orange-bright), var(--btn-end));
  box-shadow: 0 7px 16px rgba(var(--shade), .24);
}

html[data-pet-theme] .web-nav-tabs,
html[data-pet-theme] .stage-tool-tabs,
html[data-pet-theme] .modal-tabs,
html[data-pet-theme] .level-dots {
  background: var(--surface-muted);
  border-color: var(--border);
}

html[data-pet-theme] .web-nav-tabs .tab.active,
html[data-pet-theme] .m-tab.active,
html[data-pet-theme] .view-toggle button.on,
html[data-pet-theme] .stage-tool-tab.active,
html[data-pet-theme] .step.now span,
html[data-pet-theme] .mascot-text b,
html[data-pet-theme] .chip,
html[data-pet-theme] .preview-level,
html[data-pet-theme] .btn-pet-entry,
html[data-pet-theme] .chip-sm,
html[data-pet-theme] .qchip,
html[data-pet-theme] .scaffold-chip,
html[data-pet-theme] .scaffold-chip .chip-tag,
html[data-pet-theme] .btn-pill-action,
html[data-pet-theme] .mic-round-btn,
html[data-pet-theme] .learn-curriculum-pill,
html[data-pet-theme] .frac-num,
html[data-pet-theme] .session-actions .btn-secondary,
html[data-pet-theme] .session-actions .btn-secondary:nth-child(2),
html[data-pet-theme] .kp-tag.doing,
html[data-pet-theme] .loop-stage-pill.now,
html[data-pet-theme] .res-badge.basic,
html[data-pet-theme] .kp-tag.active {
  color: var(--orange);
}

html[data-pet-theme] .nav-stat-chip,
html[data-pet-theme] .chip,
html[data-pet-theme] .btn-pet-entry,
html[data-pet-theme] .chip-sm,
html[data-pet-theme] .mic-round-btn,
html[data-pet-theme] .learn-curriculum-pill,
html[data-pet-theme] .kp-tag.doing,
html[data-pet-theme] .loop-stage-pill.now,
html[data-pet-theme] .res-badge.basic,
html[data-pet-theme] .kp-tag.active {
  background: var(--orange-soft);
}

html[data-pet-theme] .nav-stat-chip {
  box-shadow: inset 0 0 0 1px var(--kid-line);
}

html[data-pet-theme] .nav-stat-chip.streak-chip {
  background: var(--streak-soft);
  color: var(--streak-ink);
  box-shadow: inset 0 0 0 1px var(--streak-line);
}

html[data-pet-theme] .nav-profile-chip,
html[data-pet-theme] .view-toggle {
  background: var(--nav-chip);
}

html[data-pet-theme] .streak-badge {
  background: linear-gradient(135deg, var(--streak-a), var(--streak-b));
  box-shadow: 0 7px 16px rgba(var(--shade), .16);
}

html[data-pet-theme] .mascot-card,
html[data-pet-theme] .modal-pet-preview {
  background: linear-gradient(160deg, var(--mascot-a) 0%, var(--mascot-b) 100%);
  border-color: var(--border);
}

html[data-pet-theme] .mascot,
html[data-pet-theme] .pet-my-avatar,
html[data-pet-theme] .preview-stage {
  background: radial-gradient(circle at 32% 30%, #fff, var(--face));
  box-shadow: 0 10px 22px rgba(var(--glow), .22);
}

html[data-pet-theme] .task-card,
html[data-pet-theme] .card,
html[data-pet-theme] .growth-summary-card,
html[data-pet-theme] .food-stage-card,
html[data-pet-theme] .stage-controls-bar,
html[data-pet-theme] .fraction-board,
html[data-pet-theme] .growth-summary-item,
html[data-pet-theme] .growth-dropdown,
html[data-pet-theme] .unit-drawer-footer,
html[data-pet-theme] .habit-item,
html[data-pet-theme] .tabbar,
html[data-pet-theme] .stage-top-bar,
html[data-pet-theme] .modal-header {
  border-color: var(--border);
}

html[data-pet-theme] .task-meta .time,
html[data-pet-theme] .pet-badge-tag,
html[data-pet-theme] .loop-status-tag,
html[data-pet-theme] .quest-step-pill.current,
html[data-pet-theme] .voice-status-text,
html[data-pet-theme] .voice-timer,
html[data-pet-theme] .express-tip,
html[data-pet-theme] .express-action-btn,
html[data-pet-theme] .session-actions .btn-secondary:nth-child(1),
html[data-pet-theme] .ctrl-pill.active,
html[data-pet-theme] .floating-pet-collapse-btn {
  color: var(--orange-strong);
}

html[data-pet-theme] .task-meta .time,
html[data-pet-theme] .pet-badge-tag,
html[data-pet-theme] .quest-step-pill.current,
html[data-pet-theme] .ctrl-pill.active,
html[data-pet-theme] .session-actions .btn-secondary:nth-child(1) {
  background: var(--blue-soft);
  border-color: var(--pet-line-strong);
}

html[data-pet-theme] .section-title::before,
html[data-pet-theme] .steps .progress-line,
html[data-pet-theme] .pet-progress-fill,
html[data-pet-theme] .milestone-progress-fill {
  background: linear-gradient(90deg, var(--signal), var(--orange-bright));
  box-shadow: none;
}

html[data-pet-theme] .steps::before,
html[data-pet-theme] .step .dot,
html[data-pet-theme] .pet-progress-bar,
html[data-pet-theme] .milestone-progress-track {
  background: var(--surface-muted);
  border-color: var(--track);
}

html[data-pet-theme] .step.now .dot {
  border-color: var(--signal);
  background: var(--signal);
  color: var(--signal-ink);
  box-shadow: 0 0 0 6px rgba(var(--glow), .18);
  animation: themeStepPulse 1.6s ease-in-out infinite;
}

@keyframes themeStepPulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(var(--glow), .18); }
  50% { box-shadow: 0 0 0 9px rgba(var(--glow), .10); }
}

html[data-pet-theme] .step.locked .dot {
  border-color: var(--track);
  background: var(--locked-bg);
  color: var(--locked-ink);
}

html[data-pet-theme] .loop-status-bar {
  background: rgba(var(--glow), .08);
  border-color: rgba(var(--glow), .28);
}

html[data-pet-theme] .check,
html[data-pet-theme] .answer-box,
html[data-pet-theme] .btn-pill-action,
html[data-pet-theme] .qchip,
html[data-pet-theme] .scaffold-chip,
html[data-pet-theme] .mic-round-btn,
html[data-pet-theme] .session-actions .btn-secondary,
html[data-pet-theme] .ctrl-pill,
html[data-pet-theme] .frac-badge-box {
  border-color: var(--border-strong);
}

html[data-pet-theme] .desktop-pet-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, .97), var(--room));
  border-left-color: var(--border);
  box-shadow: -10px 0 30px rgba(var(--shade), .05);
}

html[data-pet-theme] .pet-stage-box {
  background: radial-gradient(ellipse 70% 60% at 50% 72%, rgba(var(--glow), .28), transparent 70%);
}

html[data-pet-theme] .pet-speech-bubble,
html[data-pet-theme] .floating-pet-bubble {
  background: #fff;
  border: 1.5px solid var(--pet-line-strong);
  box-shadow: 0 8px 22px rgba(var(--glow), .16);
  color: var(--ink);
}

html[data-pet-theme] .pet-speech-bubble::after,
html[data-pet-theme] .floating-pet-bubble::after {
  border-top-color: var(--pet-line-strong);
}

html[data-pet-theme] .milestone-label {
  background: var(--orange-bright);
}

html[data-pet-theme] .pet-my-card {
  background: linear-gradient(145deg, #FFFFFF 60%, var(--my-b));
  border-color: var(--kid-line);
}

html[data-pet-theme] .setting-item:focus-visible,
html[data-pet-theme] .tab:focus-visible,
html[data-pet-theme] .check:focus-visible,
html[data-pet-theme] .view-toggle button:focus-visible {
  outline-color: var(--focus-ring);
}

html[data-pet-theme] .mastery-header-card {
  background: linear-gradient(135deg, rgba(255, 255, 255, .98), var(--header-b));
  border-color: var(--border);
  box-shadow: 0 6px 20px rgba(var(--shade), .06);
}

html[data-pet-theme] .learn-curriculum-pill {
  border-color: var(--kid-line);
}

html[data-pet-theme] .level-dots .ld {
  background: var(--track);
}

html[data-pet-theme] .level-dots .ld.on,
html[data-pet-theme] .wave-bars .bar {
  background: var(--signal);
  box-shadow: 0 0 8px rgba(var(--glow), .45);
}

html[data-pet-theme] .quest-step-pill {
  background: var(--locked-bg);
  border-color: var(--border);
}

html[data-pet-theme] .quest-step-pill.current {
  box-shadow: 0 2px 8px rgba(var(--glow), .16);
  animation: themeQuestPulse 2s ease-in-out infinite alternate;
}

@keyframes themeQuestPulse {
  from { box-shadow: 0 0 0 2px rgba(var(--glow), .12); }
  to { box-shadow: 0 0 0 5px rgba(var(--glow), .22); }
}

html[data-pet-theme] .btn-pill-action {
  background: #fff;
}

html[data-pet-theme] .btn-pill-action:hover:not(:disabled),
html[data-pet-theme] .qchip:hover,
html[data-pet-theme] .scaffold-chip:hover {
  background: var(--orange-soft);
  border-color: var(--focus-ring);
}

html[data-pet-theme] .btn-pill-action.complete,
html[data-pet-theme] .btn-pill-action.complete:hover:not(:disabled),
html[data-pet-theme] .msg.ai .bubble.hint {
  border-color: #A3E081;
  color: #265B0E;
  background: #F4FAF0;
  box-shadow: none;
}

html[data-pet-theme] .msg.ai .bubble.hint {
  border-style: dashed;
  border-color: #73D13D;
  color: #237804;
}

html[data-pet-theme] .msg.ai .avatar {
  background: radial-gradient(circle at 35% 35%, #FFFFFF, var(--avatar-pet));
  border-color: var(--pet-line);
  box-shadow: 0 4px 10px rgba(var(--glow), .22);
}

html[data-pet-theme] .msg.kid .avatar {
  background: radial-gradient(circle at 35% 35%, #FFFFFF, var(--avatar-kid));
  border-color: var(--kid-line);
  box-shadow: 0 4px 10px rgba(var(--shade), .18);
}

html[data-pet-theme] .msg.ai .bubble,
html[data-pet-theme] .learn-companion-bar,
html[data-pet-theme] .teach-express-box,
html[data-pet-theme] .voice-wave-panel,
html[data-pet-theme] .floating-pet-collapse-btn {
  background-color: var(--pet-bubble);
  border-color: var(--pet-line);
  color: var(--ink);
}

html[data-pet-theme] .msg.ai .bubble {
  background: var(--pet-bubble);
  border: 1.5px solid var(--pet-line);
  box-shadow: 0 5px 18px rgba(var(--glow), .12);
  color: var(--ink);
}

html[data-pet-theme] .msg.kid .bubble {
  background: var(--kid-bubble);
  color: var(--ink);
  border: 1px solid var(--kid-line);
  box-shadow: none;
}

html[data-pet-theme] .qchip,
html[data-pet-theme] .scaffold-chip,
html[data-pet-theme] .ctrl-pill,
html[data-pet-theme] .express-action-btn,
html[data-pet-theme] .session-actions .btn-secondary {
  background: #fff;
}

html[data-pet-theme] .scaffold-wrap,
html[data-pet-theme] .kp-item.active-task {
  background: var(--panel);
  border-color: var(--panel-line);
}

html[data-pet-theme] .scaffold-chip .chip-tag {
  background: var(--orange-soft);
}

html[data-pet-theme] .voice-wave-panel {
  background-image: linear-gradient(135deg, var(--pet-bubble) 0%, var(--blue-soft) 100%);
  box-shadow: 0 4px 12px rgba(var(--glow), .12);
}

html[data-pet-theme] .voice-timer,
html[data-pet-theme] .express-action-btn {
  border-color: var(--pet-line);
}

html[data-pet-theme] .mic-round-btn.speaking {
  background: var(--orange-bright) !important;
  border-color: var(--orange) !important;
  color: #FFFFFF !important;
  box-shadow: 0 0 0 4px rgba(var(--shade), .25);
}

html[data-pet-theme] .mic-round-btn.recording,
html[data-pet-theme] .api-status.error {
  background: #FEECEB !important;
  border-color: #FFA39E !important;
  color: #B42318 !important;
}

html[data-pet-theme] .api-status.demo {
  background: var(--orange-soft);
  color: var(--orange);
}

html[data-pet-theme] .mic-round-btn.recording {
  background: #FF4D4F !important;
  border-color: #D9363E !important;
  color: #FFFFFF !important;
}

html[data-pet-theme] .answer-compose {
  background: linear-gradient(180deg, transparent 0%, var(--room) 28%);
}

html[data-pet-theme] .answer-box:focus-within {
  border-color: var(--focus-ring);
  box-shadow: 0 6px 20px rgba(var(--shade), .14);
}

html[data-pet-theme] .ctrl-pill {
  color: var(--ink);
}

html[data-pet-theme] .ctrl-pill.active {
  box-shadow: none;
}

html[data-pet-theme] .ctrl-pill.unfair {
  border-color: #FFA39E;
  color: #B42318;
  background: #fff;
}

html[data-pet-theme] .ctrl-pill.unfair.active {
  background: #B42318;
  color: #fff;
  border-color: #B42318;
}

html[data-pet-theme] .frac-num,
html[data-pet-theme] .frac-divider {
  background: transparent;
}

html[data-pet-theme] .frac-divider {
  background: var(--orange);
}

html[data-pet-theme] .food-stage-card {
  background: #fff;
  box-shadow: 0 8px 28px rgba(var(--shade), .06);
}

html[data-pet-theme] .pet-modal-card {
  background: var(--modal);
}

html[data-pet-theme] .modal-header {
  background: var(--modal-head);
}

html[data-pet-theme] .modal-pet-preview {
  border-color: var(--kid-line);
}