:root{color-scheme:light dark;--bg:light-dark(#f4f7fa,#101b24);--panel:light-dark(#fff,#1b2b38);--text:light-dark(#18303a,#edf5f7);--line:light-dark(#d2dde3,#405460);--brand:light-dark(#075b62,#89e4db);--on:light-dark(#fff,#0c3434);--sub:light-dark(#526670,#b8cbd4)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 system-ui,sans-serif}header{display:flex;gap:22px;align-items:center;flex-wrap:wrap;padding:20px 5%;background:var(--panel);border-bottom:1px solid var(--line)}header strong{font-size:24px;color:var(--brand)}header span{flex:1}main{max-width:1150px;padding:24px;margin:auto}h1{font-size:26px}h2{font-size:20px}button,input,textarea,select{font:inherit;border:1px solid var(--line);border-radius:10px;padding:11px;background:var(--panel);color:var(--text)}button{cursor:pointer;min-height:44px}button:disabled{opacity:.55;cursor:wait}button.primary{background:var(--brand);color:var(--on);border-color:var(--brand)}input,textarea,select{width:100%;margin:6px 0 16px}textarea{min-height:80px;resize:vertical}label{display:block}form{max-width:600px}#login{max-width:430px;margin:40px auto;padding:24px;background:var(--panel);border-radius:18px}#notice{color:var(--brand);white-space:pre-wrap}.layout{display:grid;grid-template-columns:290px 1fr;gap:24px;margin-top:24px}aside,article,details{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:20px}aside button{display:block;text-align:left;width:100%;margin:10px 0}article{min-width:0}.identity{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}#sync,small,footer{color:var(--sub);font-size:13px}.actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.actions select{width:auto;margin:0}details{margin:14px 0}summary{cursor:pointer;padding:5px}.bubble{padding:14px;border:1px solid var(--line);border-radius:14px;max-width:90%;margin:14px 0;white-space:pre-wrap;overflow-wrap:anywhere}.mine{margin-left:auto;background:var(--bg)}.bubble small{display:block;margin-top:6px}.request{padding:16px 0;border-bottom:1px solid var(--line)}footer{text-align:center;padding:24px}[hidden]{display:none!important}:focus-visible{outline:3px solid var(--brand);outline-offset:3px}@media(max-width:700px){.layout{grid-template-columns:1fr}main{padding:14px}header{gap:8px}header span{font-size:13px}}