.app{max-width:600px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column}.header{text-align:center;padding:24px 16px 16px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.header h1{font-size:22px;margin-bottom:4px}.header .sub{font-size:12px;opacity:.9}.tabs{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-bottom:1px solid #eee;position:sticky;top:0;z-index:10}.tab{display:flex;flex-direction:column;align-items:center;gap:2px;padding:10px 4px;background:#fff;color:#666;font-size:12px;border-radius:0}.tab.active{color:#667eea;border-bottom:2px solid #667eea}.tab-icon{font-size:20px}.content{flex:1;padding:16px}.footer{text-align:center;padding:16px;color:#999;font-size:12px}.card{background:#fff;border-radius:12px;padding:20px 16px;margin-bottom:12px;box-shadow:0 2px 8px #0000000a}.card h2{font-size:17px;margin-bottom:4px}.card .desc{color:#888;font-size:13px;margin-bottom:16px}.file-list{margin:12px 0}.file-item{display:flex;align-items:center;gap:8px;padding:10px 12px;background:#f8f9ff;border-radius:8px;margin-bottom:6px;font-size:13px;word-break:break-all}.file-item .name{flex:1}.file-item .del{color:#ff4d4f;background:none;padding:4px 8px;font-size:18px}.note{font-size:12px;color:#999;margin-top:8px;text-align:center}.space{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.label{font-size:14px;margin:12px 0 6px}input[type=file]{display:none}select,input[type=number],input[type=text]{padding:8px 12px;border:1px solid #ddd;border-radius:6px;font-size:14px;font-family:inherit}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,Segoe UI,Microsoft YaHei,sans-serif;background:#f5f6fa;color:#333;line-height:1.6;-webkit-tap-highlight-color:transparent}button{font-family:inherit;cursor:pointer;border:none;border-radius:8px;padding:12px 20px;font-size:15px;transition:opacity .2s,transform .1s}button:active{transform:scale(.98)}button:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;width:100%;padding:14px;font-size:16px;font-weight:600}.btn-default{background:#fff;color:#333;border:1px solid #ddd}