:root{--bg-primary: #0a0a1a;--bg-secondary: #12122a;--bg-card: #1a1a3e;--accent-red: #e74c3c;--accent-blue: #3498db;--accent-gold: #f1c40f;--accent-green: #2ecc71;--text-primary: #ffffff;--text-secondary: #a0a0c0;--border-color: #2a2a4e}*{margin:0;padding:0;box-sizing:border-box}body{background:var(--bg-primary);color:var(--text-primary);font-family:Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;overflow:hidden}button{cursor:pointer;border:none;outline:none;font-family:inherit}button:hover{opacity:.9;transform:translateY(-1px)}button:active{transform:translateY(0)}input{outline:none;font-family:inherit}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:3px}