*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{color:#222;background:#f5f5f5;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:14px}.app{max-width:860px;margin:0 auto;padding:24px 16px}.app-header{margin-bottom:32px}.app-header h1{font-size:24px;font-weight:700}.app-header p{color:#666;margin-top:4px}.app-main{flex-direction:column;gap:24px;display:flex}.demo-section{background:#fff;border:1px solid #e5e5e5;border-radius:8px;padding:20px}.demo-section>h2{border-bottom:1px solid #e5e5e5;margin-bottom:16px;padding-bottom:8px;font-size:16px;font-weight:600}.demo-group{margin-bottom:16px}.demo-group:last-child{margin-bottom:0}.demo-group h3{color:#555;margin-bottom:8px;font-size:13px;font-weight:500}.btn-row{flex-wrap:wrap;gap:8px;display:flex}.config-row{flex-wrap:wrap;align-items:flex-end;gap:12px;margin-bottom:8px;display:flex}.config-row label{color:#666;flex-direction:column;gap:4px;font-size:12px;display:flex}.config-row input{border:1px solid #d0d0d0;border-radius:4px;width:140px;height:30px;padding:0 8px;font-size:13px}button{cursor:pointer;background:#fff;border:1px solid #d0d0d0;border-radius:4px;height:30px;padding:0 12px;font-size:13px;transition:background .15s}button:hover{background:#f0f0f0}button.btn-danger{color:#f5222d;border-color:#f5222d}button.btn-danger:hover{background:#fff1f0}.iap-message-container{z-index:9999;pointer-events:none;flex-direction:column;align-items:center;gap:8px;list-style:none;display:flex;position:fixed;top:16px;left:50%;transform:translate(-50%)}.iap-message{pointer-events:auto;background:#fff;border-radius:8px;align-items:center;gap:8px;padding:9px 14px;font-size:14px;line-height:1.5;animation:.2s iap-message-in;display:inline-flex;box-shadow:0 4px 12px #0000001f}@keyframes iap-message-in{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.iap-message__icon{flex-shrink:0;font-size:16px}.iap-message__content{flex:1}.iap-message__close{color:#999;cursor:pointer;background:0 0;border:none;height:auto;margin-left:4px;padding:0 4px;font-size:16px;line-height:1}.iap-message__close:hover{color:#333;background:0 0}.iap-message--success{color:#389e0d;background:#f6ffed;border:1px solid #b7eb8f}.iap-message--success .iap-message__icon{color:#52c41a}.iap-message--error{color:#cf1322;background:#fff1f0;border:1px solid #ffa39e}.iap-message--error .iap-message__icon{color:#f5222d}.iap-message--warning{color:#d46b08;background:#fff7e6;border:1px solid #ffd591}.iap-message--warning .iap-message__icon{color:#fa8c16}.iap-message--info{color:#096dd9;background:#e6f7ff;border:1px solid #91d5ff}.iap-message--info .iap-message__icon{color:#1890ff}.result{white-space:pre-wrap;word-break:break-all;background:#fafafa;border:1px solid #e5e5e5;border-radius:4px;margin-top:8px;padding:8px 10px;font-family:SF Mono,Consolas,monospace;font-size:12px}