:root{--text:#33374a;--text-muted:#8a8fa3;--text-h:#1a1d29;--bg:#f5f6fa;--card-bg:#fff;--border:#e8eaf0;--accent:#4f6ef7;--accent-soft:#4f6ef71a;--ok:#2ecc71;--fail:#e74c3c;--warn:#f39c12;--sans:-apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Roboto, sans-serif;font-family:var(--sans);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizelegibility;font-size:16px;line-height:1.5}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;padding:0}body{background:var(--bg);color:var(--text);touch-action:manipulation}button{cursor:pointer;font-family:inherit}h1,h2,h3{color:var(--text-h);margin:0;font-weight:600}.muted{color:var(--text-muted)}