:root{--sakura: #f9c0cb;--rose: #e8829a;--deep-rose: #c96a84;--blush: #fdf6f0;--petal: #fff0f4;--ink: #4a2030;--muted: #a07080;--border: #f4c0cc;--accent: #c96a84;--surface: #ffffff;--surface-2: #fff8fa;--topbar-bg: rgba(253,246,240,.96);--input-bg: #ffffff;--bubble-ai: #fff0f4;--bubble-ai-border: #f4c0cc;--overlay-bg: rgba(20,5,15,.82);--separator: #f4c0cc;--timestamp: #b090a0;--font-serif: "Crimson Pro", Georgia, serif;--font-jp: "Noto Serif JP", serif;--font-ui: "DM Sans", sans-serif;--radius: 18px;--radius-sm: 10px;--shadow: 0 4px 24px rgba(201,106,132,.12);--shadow-lg: 0 8px 40px rgba(201,106,132,.2);--topbar-h: 56px;--page-max: 540px}[data-theme=dark]{--blush: #0f0a14;--petal: #1a1228;--ink: #f0e8ec;--muted: #9880a0;--border: #2e1e38;--surface: #1a1228;--surface-2: #221630;--topbar-bg: rgba(15,10,20,.97);--input-bg: #1e1530;--bubble-ai: #1e1530;--bubble-ai-border: #2e1e40;--overlay-bg: rgba(0,0,0,.9);--separator: #2e1e38;--timestamp: #705060;--rose: #f090a8;--deep-rose: 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.input{background:var(--input-bg);color:var(--ink);border-color:var(--border)}[data-theme=dark] .input::placeholder{color:var(--muted)}[data-theme=dark] .topbar,[data-theme=dark] .bottom-nav{background:#0f0a14f7}[data-theme=dark] .desktop-sidebar{background:var(--surface)}[data-theme=dark] .toggle{background:var(--border)}[data-theme=dark] .toggle.on{background:var(--deep-rose)}[data-theme=dark] .char-card[style*=f0f0ff],[data-theme=dark] .char-card[style*=fff0]{color:#2a1830!important}[data-theme=dark] .bubble-ai-content{color:var(--ink)}[data-theme=dark] .bubble-ai-content .action-block{color:var(--muted)}[data-theme=dark] .speech-block{color:var(--ink)}.constellation-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9999;background:#020008;display:flex;flex-direction:column;align-items:center;justify-content:center;animation:constellation-fade-in .6s ease;cursor:pointer}@keyframes 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