:root{font-family:system-ui,-apple-system,"PingFang SC",sans-serif;color:#193047;background:#f1f6fb;font-synthesis:none}*{box-sizing:border-box}body{margin:0}main{max-width:980px;margin:auto;padding:52px 28px}h1{font-size:clamp(28px,5vw,42px);line-height:1.35;letter-spacing:-1px;margin:12px 0 18px}h2{font-size:18px}p{line-height:1.8}.eyebrow{color:#2b6b9c;font:700 12px ui-monospace,monospace;letter-spacing:2px}.intro{max-width:760px;color:#526b81}.controls,.conversation{background:#fff;border:1px solid #d7e4ee;border-radius:14px;padding:24px;margin:26px 0}label{display:block;font-weight:650;margin-bottom:10px}select,button{font:inherit;padding:12px 16px;border:1px solid #b9cddd;border-radius:7px;max-width:100%;min-height:44px}select{background:#fff;width:300px;color:#193047}.request{margin:18px 0}button{cursor:pointer;background:#1e618c;color:#fff;border-color:#1e618c;margin:0 10px 12px 0}button:disabled{cursor:wait;opacity:.55}.secondary,.choice{background:white;color:#1e618c}.selected{background:#e3f0fa;border-color:#226991}.choice-group{padding-top:14px;border-top:1px solid #dfebf4;margin-top:20px}.choice-group .choice{display:block;width:100%;text-align:left}.summary,.tool-count{font-size:13px;color:#526b81;overflow-wrap:anywhere}.message{background:#edf5fb;border-left:3px solid #2a719e;padding:16px;overflow-wrap:anywhere}.error{color:#9e2f27;background:#fff2ed;border-color:#b94535}.policy{margin-top:24px;background:#eef6f2;border:1px solid #cce1d6;padding:20px;border-radius:10px}.entry-preview{font-size:14px}small{display:block;color:#657f94;font-size:12px;line-height:1.8}.protocol{margin-top:32px}.protocol pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#142a3d;color:#d1e3ef;font:12px/1.8 ui-monospace,SFMono-Regular,monospace;border-radius:10px;padding:22px}footer{margin-top:32px;color:#657f94;font-size:12px;line-height:1.8}button:focus-visible,select:focus-visible{outline:3px solid #77b8e8;outline-offset:3px}@media(max-width:560px){main{padding:30px 18px}.controls,.conversation{padding:18px}button{width:100%;margin-right:0}.policy{padding:16px}}