暗黑ui

Design a dark interface with layered depth. Color system: - Background layers: base #111111, surface #1c1c1c, elevated #252525 - Border: 1px solid #2a2a2a on all cards and panels - Text: heading #f1f5f9, body #94a3b8, muted/caption #475569 - Accent: single color only, recommend #10b981 (emerald) or #3b82f6 (blue) Use accent ONLY for: primary buttons, active nav items, focus rings Do NOT use accent for backgrounds, icons, or decorative elements Rules: - No pure #000000 background - No pure #ffffff text - No warm beige or brown tones — keep everything cool/neutral gray - No multiple accent colors - Shadows: use subtle inward glow (box-shadow inset) rather than drop shadows - All interactive elements need hover state: background lightens by ~10 Typography: - Use Inter, SF Pro, or system sans-serif - Font size: heading 24px/700, body 15px/400, caption 12px/400 - Line height: 1.6 for body text