*,*:before,*:after{box-sizing:border-box}html,body,#app,.app-shell{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:#eef2f7;color:#1e293b;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}input,button,select,textarea{font:inherit}a{color:inherit;text-decoration:none}.tool-card-panel{background:#fff;border-radius:16px;padding:16px;margin-bottom:14px;box-shadow:0 2px 12px #0f172a0f}.tool-card-panel .field{display:block;margin-bottom:14px}.tool-card-panel .field span{display:block;font-size:13px;color:#64748b;margin-bottom:6px}.tool-card-panel .field input,.tool-card-panel .field select,.tool-card-panel .field textarea{width:100%;padding:12px;border:1px solid #e2e8f0;border-radius:12px;font-size:16px;background:#f8fafc}.tool-card-panel .hint{margin:0 0 12px;font-size:12px;color:#94a3b8;line-height:1.5}.tool-card-panel .result-box{padding:14px;background:#f1f5f9;border-radius:12px;font-size:15px;color:#1e40af;line-height:1.6;word-break:break-all}.tool-card-panel .primary-btn{width:100%;padding:14px;border:none;border-radius:12px;background:#3b82f6;color:#fff;font-size:16px;font-weight:600;cursor:pointer;margin-top:8px}.tool-card-panel .primary-btn:disabled{opacity:.6}.tool-card-panel .error{color:#dc2626;font-size:14px;margin:8px 0 0}