:root{--primary: #2f6bff;--primary-600: #1f4fd6;--primary-50: #eef3ff;--bg: #f5f7fa;--surface: #fff;--border: #e3e8ef;--text: #1f2d3d;--text-2: #5f6b7a;--text-3: #93a0ae;--success: #2fb344;--warning: #f59e0b;--danger: #e5484d;--radius: 10px;--shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 4px 16px rgba(16, 24, 40, .08)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}#app{min-height:100vh}a{color:var(--primary);text-decoration:none}.btn{border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:8px;padding:10px 14px;font-size:14px;cursor:pointer;white-space:nowrap}.btn:hover{border-color:var(--primary);color:var(--primary)}.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}.btn.primary:hover{background:var(--primary-600)}.btn.primary:disabled{opacity:.6;cursor:not-allowed}.btn.block{width:100%}.error-box{display:flex;align-items:center;gap:6px;background:#fdeeee;border:1px solid #f6c9cb;color:var(--danger);border-radius:8px;padding:9px 12px;font-size:13px}