@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap");:root{--logo-lip:#05070f;--bg-primary:#0f172a;--bg-secondary:#1e293b;--bg-tertiary:#334155;--bg-card:#1e293b;--bg-hover:#334155;--bg-input:#1e293b;--border:#334155;--border-focus:#6366f1;--text-primary:#f1f5f9;--text-secondary:#94a3b8;--text-muted:#64748b;--accent:#6366f1;--accent-hover:#818cf8;--accent-glow:rgba(99,102,241,.15);--success:#22c55e;--warning:#f59e0b;--error:#ef4444;--info:#3b82f6;--gradient-1:linear-gradient(135deg,#6366f1,#8b5cf6);--gradient-2:linear-gradient(135deg,#0f172a,#1e293b);--shadow-sm:0 1px 2px rgba(0,0,0,.3);--shadow-md:0 4px 12px rgba(0,0,0,.4);--shadow-lg:0 8px 24px rgba(0,0,0,.5);--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-full:9999px;--transition:0.2s cubic-bezier(0.4,0,0.2,1);--border-3d:#070b14;--accent-mint:#10b981;--accent-coral:#f43f5e;--accent-sun:#f59e0b;--glass:rgba(15,23,42,.48);--glass-strong:rgba(15,23,42,.74);--glass-soft:rgba(15,23,42,.28);--bg-subtle:hsla(0,0%,100%,.03);--stripe:var(--stripe);--tint-deep:#0f172a;--shadow-float:0 10px 28px rgba(0,0,0,.18);--bg-glow-1:rgba(99,102,241,.14);--bg-glow-2:rgba(16,185,129,.08);color-scheme:dark}:root[data-theme=light]{--logo-lip:#0f172a;--bg-primary:#f4f6fb;--bg-secondary:#fff;--bg-tertiary:#e4e9f2;--bg-card:#fff;--bg-hover:#edf1f8;--bg-input:#fff;--border:#d5dce8;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#6b7a93;--accent:#4f46e5;--accent-hover:#6366f1;--accent-glow:rgba(79,70,229,.12);--success:#16a34a;--warning:#d97706;--error:#dc2626;--info:#2563eb;--gradient-1:linear-gradient(135deg,#4f46e5,#7c3aed);--gradient-2:linear-gradient(135deg,#fff,#edf1f8);--shadow-sm:0 1px 2px rgba(15,23,42,.08);--shadow-md:0 4px 12px rgba(15,23,42,.1);--shadow-lg:0 8px 24px rgba(15,23,42,.14);--border-3d:#1e293b;--accent-mint:#059669;--accent-coral:#e11d48;--accent-sun:#d97706;--glass:hsla(0,0%,100%,.72);--glass-strong:hsla(0,0%,100%,.92);--glass-soft:hsla(0,0%,100%,.55);--bg-subtle:rgba(15,23,42,.03);--stripe:rgba(15,23,42,.05);--tint-deep:#dde3ee;--shadow-float:0 8px 22px rgba(15,23,42,.1);--bg-glow-1:rgba(99,102,241,.16);--bg-glow-2:rgba(16,185,129,.12);color-scheme:light}*{margin:0;padding:0;box-sizing:border-box}body,html{height:100%;font-family:Inter,-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans CJK SC,sans-serif;background:radial-gradient(circle at 18% -10%,var(--bg-glow-1),transparent 28%),radial-gradient(circle at 86% 8%,var(--bg-glow-2),transparent 26%),var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased}.api-key-horizontal-scroll{scrollbar-width:thin;scrollbar-color:transparent 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