:root{font-family:Arial,sans-serif;color:#193647;background:#edf2f5;font-size:16px}*{box-sizing:border-box}body{margin:0}header{height:78px;padding:0 4%;display:flex;align-items:center;justify-content:space-between;background:#fff;border-bottom:1px solid #dce4e9}.brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:20px}.mark{background:#123d51;color:white;width:36px;height:40px;border-radius:8px;display:grid;place-items:center}.muted{font-weight:400;color:#72818c}.privacy{font-size:14px;color:#576b78}main{max-width:1500px;margin:auto;padding:32px 4% 20px}.intro{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:26px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:1.7px;color:#42788a;margin:0 0 10px}h1{font-size:32px;letter-spacing:-1px;margin:0 0 8px}.intro p:last-child{color:#5a6e7c;margin:0;font-size:16px}button,select,input,textarea{font:inherit}button{cursor:pointer;border-radius:7px;font-size:14px;font-weight:600;padding:12px 16px;border:1px solid #cbd7df;background:white;color:#244454}button:hover{filter:brightness(.96)}button:disabled{opacity:.5;cursor:default}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #62aac2;outline-offset:2px}.primary{background:#123d51;color:#fff;border-color:#123d51}.text-button{border:0;background:transparent;padding:8px;color:#587080;font-weight:400}.settings{display:flex;gap:18px;align-items:end;flex-wrap:wrap;background:#e1eaf0;border:1px solid #d2dee6;border-radius:10px;padding:18px;margin-bottom:24px}.settings label{font-size:14px;display:flex;flex-direction:column;gap:8px;position:relative}.unit{position:absolute;right:0;color:#718591;font-size:12px}.settings input{width:98px}.settings select,.settings input{height:40px;border:1px solid #c2d0da;border-radius:5px;padding:8px;background:white;color:#234455}.settings .text-button{margin-left:auto;margin-bottom:3px}.workspace{display:grid;grid-template-columns:1fr 1.1fr;gap:24px}.panel{background:white;border:1px solid #d7e1e7;border-radius:10px;overflow:hidden;min-width:0;display:flex;flex-direction:column}.panel-head{height:62px;border-bottom:1px solid #e3e9ed;display:flex;align-items:center;justify-content:space-between;padding:0 20px;gap:10px}h2{font-size:16px;margin:0;display:flex;align-items:center;gap:10px}.step{font-size:12px;color:#77909f;font-weight:400}.small{font-size:12px;color:#708592}textarea{flex:1;min-height:470px;width:100%;resize:vertical;border:0;padding:24px;line-height:1.6;color:#263f4e;font-size:16px;background:#fff}textarea::placeholder{color:#8a9aa4}.panel-foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;padding:14px 20px;border-top:1px solid #e3e9ed;font-size:12px;color:#758794}.paper-wrap{padding:25px;background:#f4f7f9;flex:1;max-height:610px;overflow:auto}#preview{background:white;min-height:360px;padding:32px 34px;box-shadow:0 2px 12px #1d3f5010;color:#111;overflow-wrap:anywhere}.empty{text-align:center;color:#80919d;padding-top:80px;font-family:Arial,sans-serif}.empty-icon{display:block;font-size:40px;color:#afbec8}.empty h3{font-size:16px;font-weight:400;margin:14px 0 8px}.empty p{font-size:14px;margin:0}.copy-area{padding:18px 20px}.copy-area button{margin:0 6px 8px 0}.copy-area p{font-size:12px;color:#6c8290;margin:4px 0;line-height:1.5}footer{font-size:12px;color:#718591;margin-top:22px}#status{font-size:14px;margin-top:16px;min-height:18px;color:#1f657d}@media(max-width:1000px){.workspace{grid-template-columns:1fr}.settings{gap:12px}.settings .text-button{margin-left:0}.privacy{max-width:140px;text-align:right}#preview{min-height:300px}}@media(max-width:550px){header{padding:0 18px}.brand{font-size:16px}.privacy{font-size:12px}main{padding:24px 16px}.intro{align-items:start;flex-direction:column}h1{font-size:28px}.settings{padding:14px}.settings label{flex:1;min-width:105px}.settings input{width:100%}.paper-wrap{padding:12px}#preview{padding:24px 18px}.small{display:none}.copy-area button{width:100%}}