:root{font-family:Arial,sans-serif;color:#173148;background:#f2f5f7;font-size:16px}*{box-sizing:border-box}body{margin:0}main{max-width:920px;margin:auto;padding:32px 22px}header{display:flex;align-items:center;justify-content:space-between;padding-bottom:25px;border-bottom:1px solid #d6e0e7}header a{font-size:27px;font-weight:800;letter-spacing:2px;text-decoration:none;color:#113c5b}header a span{display:block;font-size:11px;letter-spacing:1px;margin-top:7px;font-weight:400}.badge{font-size:11px;padding:8px 10px;background:#e1ebf2;border-radius:6px;letter-spacing:1px}.intro{padding:35px 0 18px}.eyebrow{color:#47738e;font-size:12px;font-weight:bold;letter-spacing:2px}h1{font-size:38px;letter-spacing:-1px;margin:12px 0}.intro p{line-height:1.6}.notice{font-size:13px;background:#fff3d8;padding:13px 16px;border-left:3px solid #c99736;border-radius:4px}.chat{background:white;border:1px solid #d6e0e7;border-radius:16px;overflow:hidden;box-shadow:0 12px 35px #12344d09}#messages{padding:22px;min-height:220px;max-height:440px;overflow-y:auto;display:flex;flex-direction:column;gap:14px}.msg{max-width:87%;padding:14px 17px;border-radius:12px;line-height:1.55;white-space:pre-wrap;overflow-wrap:anywhere;background:#eff4f7}.msg.user{align-self:flex-end;background:#174e70;color:white}.msg a{color:#14648a}#choices{display:flex;gap:8px;flex-wrap:wrap;padding:0 22px 18px}button{font:inherit;cursor:pointer;border-radius:8px;border:1px solid #b7cedc;background:white;color:#164561;padding:10px 14px}button:hover{background:#eaf2f6}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #e3a83a;outline-offset:2px}#form{border-top:1px solid #e3eaee;display:flex;padding:16px;gap:9px}input{font:inherit;flex:1;min-width:0;border:1px solid #bdced9;border-radius:8px;padding:12px}#form button{background:#174e70;color:white;border:0}.bottom{padding:0 18px 16px;display:flex;justify-content:space-between;gap:14px;align-items:center;font-size:12px}.bottom a{color:#41677c}.bottom button{border:0;font-size:12px;padding:5px}footer{text-align:center;padding:22px;color:#637c8c;font-size:12px}.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}@media(max-width:550px){main{padding:20px 12px}header a{font-size:23px}h1{font-size:30px}.intro{padding-top:20px}#messages{padding:15px}.msg{max-width:95%}#choices{padding-left:15px;padding-right:15px}.bottom{align-items:flex-start}}
button:disabled{cursor:wait;opacity:.55}.source-links{margin-top:12px;font-size:12px;border-top:1px solid #cbdbe5;padding-top:10px}.source-links a{display:block;padding-top:5px}.login-error{padding:0 18px;color:#993923}