:root{font-family:"Microsoft YaHei UI",system-ui,sans-serif;color:#17243b;background:#f5f7fb}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button{cursor:pointer}.shell{max-width:1450px;margin:auto;padding:0 30px 42px}.topbar{height:82px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e2e8f1}.brand{display:flex;align-items:center;gap:11px;font-size:19px;font-weight:800}.brand-icon{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:#315fe6;color:#fff;font-size:21px}.connection{display:flex;align-items:center;gap:9px;color:#52627c;background:#fff;border:1px solid #e5eaf2;padding:9px 13px;border-radius:999px;font-size:13px}.connection i{width:7px;height:7px;border-radius:50%;background:#27ad70;box-shadow:0 0 0 4px #dbf6e8}.intro{padding:38px 0 30px}.eyebrow{color:#4165d4;font-size:11px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}.intro .eyebrow{margin:0}.intro h1{font-size:clamp(30px,4vw,46px);letter-spacing:-.04em;margin:8px 0 10px}.intro>p:last-child{color:#64738b;line-height:1.6;margin:0;font-size:14px}.layout{display:grid;grid-template-columns:minmax(350px,490px) minmax(0,1fr);gap:22px;align-items:start}.card{background:#fff;border:1px solid #e4eaf3;border-radius:21px;box-shadow:0 14px 42px #2840670a}.controls,.results{padding:27px}.results{min-height:740px}.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.section-head h2{font-size:21px;margin:5px 0 0;letter-spacing:-.02em}.pill,.badge{border-radius:999px;background:#eef2f9;color:#61718a;font-size:11px;font-weight:750;padding:7px 10px}.badge.active{background:#eaf0ff;color:#315bd0}.badge.done{background:#e5f7ee;color:#168252}label{display:block;font-size:13px;font-weight:750;margin:17px 0 8px}input,textarea,select{width:100%;border:1px solid #d6dfeb;background:#fcfdff;color:#17243b;border-radius:11px;padding:12px 13px;outline:none;transition:border-color .15s,box-shadow .15s}input:focus,textarea:focus,select:focus{border-color:#5e80e9;box-shadow:0 0 0 3px #dce5ff}input::placeholder,textarea::placeholder{color:#9eabc0}textarea{min-height:148px;resize:vertical;line-height:1.65}.help{font-size:12px;color:#8592a6;line-height:1.5;margin:7px 1px 0}.input-wrap{position:relative}.input-wrap input{padding-right:70px}.show-key{position:absolute;top:6px;right:6px;border:0;border-radius:8px;background:#edf2ff;color:#5270bb;font-size:12px;font-weight:750;padding:7px 9px}.show-key:hover{background:#dfe8ff}.label-row{display:flex;align-items:end;justify-content:space-between}.label-row label{margin-bottom:8px}.link-button{border:0;background:none;color:#315bd0;font-weight:750;font-size:12px;padding:0 0 8px}.link-button:hover{text-decoration:underline}.link-button:disabled{opacity:.55;cursor:wait}.divider{height:1px;background:#e9edf4;margin:27px 0 23px}.grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.grid>div{min-width:0}.generate{width:100%;border:0;border-radius:12px;background:#315fe6;color:white;font-weight:800;font-size:15px;padding:14px 18px;margin-top:24px;box-shadow:0 10px 24px #315fe62f}.generate:hover{background:#244fd0}.generate:disabled{opacity:.6;cursor:wait}.privacy{font-size:11px;color:#8a96a9;text-align:center;line-height:1.55;margin:13px 0 0}.preview{min-height:510px;border:1px dashed #cfd9e8;border-radius:17px;background:radial-gradient(circle at 36% 30%,#eef2ff,#f8faff 48%,#f4f7fc);display:flex;align-items:center;justify-content:center;overflow:hidden}.preview img{display:block;max-width:100%;max-height:700px;object-fit:contain}.empty{display:flex;flex-direction:column;align-items:center;gap:9px;text-align:center;color:#8997ac;padding:25px}.empty strong{color:#53647e;font-size:16px}.empty span{font-size:13px}.empty-icon{display:grid;place-items:center;width:90px;height:90px;border-radius:25px;background:#e7edff;color:#9eb3fa;font-size:43px;transform:rotate(-7deg);margin-bottom:12px}.message{min-height:22px;color:#4b647f;font-size:13px;line-height:1.5;margin:14px 1px 5px}.message.error{color:#c33b42}.actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;border-top:1px solid #edf0f5;padding-top:16px;margin-top:7px}.actions[hidden]{display:none}.actions a{display:inline-block;background:#eaf0ff;color:#315bd0;text-decoration:none;border-radius:9px;padding:10px 14px;font-weight:750;font-size:13px}.actions a:hover{background:#dce6ff}#filename{font-size:12px;color:#8b98aa;overflow-wrap:anywhere}.tip{margin-top:24px;border:1px solid #edf0f5;border-radius:13px;background:#f7f9fd;padding:14px 16px;color:#65758c}.tip strong{font-size:12px;color:#52637b}.tip p{font-size:12px;line-height:1.6;margin:5px 0 0}@media(max-width:920px){.layout{grid-template-columns:1fr}.results{min-height:0}.preview{min-height:380px}}@media(max-width:600px){.shell{padding:0 14px 28px}.topbar{height:66px}.brand{font-size:16px}.connection{font-size:10px;padding:7px 9px}.intro{padding:27px 1px 23px}.intro>p:last-child{font-size:13px}.controls,.results{padding:20px}.layout{gap:14px}.grid{grid-template-columns:1fr;gap:0}.preview{min-height:320px}}