:root{color-scheme:light;--bg: #f5f7fb;--bg-grad-a: #e9f1ff;--card: #ffffff;--card-hd: #fbfcfe;--elev: #ffffff;--text: #0f172a;--text-strong: #05080f;--muted: #64748b;--faint: #94a3b8;--border: #e3e9f1;--border-soft: #eef2f7;--accent: #2563eb;--accent-weak: #eff6ff;--accent-border: #d5e4ff;--ok: #0f9960;--ok-weak: #e8f7ef;--warn: #b45309;--warn-weak: #fdf5e6;--violet: #7c3aed;--mark-a: #3b82f6;--mark-b: #1d4ed8;--mark-fg: #ffffff;--code-bg: #f7f9fc;--code-border: #e7edf5;--shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);--shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px -12px rgba(15, 23, 42, 0.12);--shadow-pop: 0 12px 32px -8px rgba(15, 23, 42, 0.22);--r-xl: 16px;--r-lg: 12px;--r-md: 8px;--r-sm: 6px;--kcol: 15.5rem;--mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;--sans: "Inter", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", 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14px;justify-content:space-between;flex-wrap:wrap}.toasts{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:100;display:flex;flex-direction:column;align-items:center;gap:8px;pointer-events:none}.toast{display:flex;align-items:center;gap:8px;padding:9px 14px;border-radius:999px;border:1px solid var(--border);background:var(--elev);color:var(--text);font-size:12.5px;font-weight:500;box-shadow:var(--shadow-pop);animation:toast-in .22s cubic-bezier(0.2, 0.9, 0.3, 1)}.toast svg{width:14px;height:14px;color:var(--ok);flex:none}.toast.err svg{color:var(--warn)}.toast.out{animation:toast-out .18s ease forwards}@keyframes toast-in{from{opacity:0;transform:translateY(10px) scale(0.96)}}@keyframes toast-out{to{opacity:0;transform:translateY(6px) scale(0.97)}}@media(prefers-reduced-motion: reduce){*,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}html{scroll-behavior:auto}}@media print{.topbar,.toasts,.cp,.card-toggle{display:none 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