:root{font-family:Inter,Microsoft YaHei,sans-serif;color:#e8eaf0;background:#0a0b10}:root[data-companion-theme=light]{color:#222735;background:#f6f7fa}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:inherit}button,textarea,input{font:inherit}button{cursor:pointer}.companion-shell{width:min(860px,100%);min-height:100vh;margin:0 auto;display:grid;grid-template-rows:64px minmax(0,1fr) auto auto;background:#0e1017}.companion-header{display:flex;align-items:center;justify-content:space-between;padding:0 22px;border-bottom:1px solid #292d3a}.companion-brand,.companion-actions{display:flex;align-items:center;gap:9px}.companion-brand>span{width:31px;height:31px;display:grid;place-items:center;border:1px solid #5264a2;border-radius:7px;color:#9db0ff;background:#13182a}.companion-brand strong{font-size:15px;letter-spacing:0}.companion-actions button,.image-button,.image-preview button{width:34px;height:34px;display:grid;place-items:center;border:1px solid #303646;border-radius:6px;color:#b3bacb;background:#151925}.companion-actions button:hover,.image-button:hover{color:#fff;border-color:#6579c8}.companion-actions button:disabled{opacity:.35;cursor:default}.companion-feed{min-height:0;overflow:auto;padding:28px 24px 44px;scrollbar-width:thin;scrollbar-color:#40485f transparent}.companion-message{display:grid;grid-template-columns:30px minmax(0,1fr);gap:10px;margin-bottom:22px}.companion-message.user{width:min(720px,90%);grid-template-columns:minmax(0,1fr) 30px;margin-left:auto}.companion-message.user .companion-avatar{grid-column:2}.companion-message.user>div{grid-column:1;grid-row:1}.companion-avatar{width:29px;height:29px;display:grid;place-items:center;border:1px solid #4e609d;border-radius:6px;color:#a8b7f9;background:#151a2a}.companion-message.user .companion-avatar{border-color:#555a68;color:#d7dae3;background:#1a1d25}.companion-message header{display:flex;align-items:center;gap:8px;min-height:25px}.companion-message.user header{justify-content:flex-end}.companion-message header strong{font-size:11px}.companion-message time{color:#72788b;font:10px/1 Consolas,monospace}.companion-message p{margin:2px 0 0;padding:12px 14px;border:1px solid #3e4b72;border-radius:7px;color:#e3e6ef;background:#131720;white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.65;font-size:14px}.companion-message.user p{border-color:#535a6a;background:#171a22}.image-badge{display:inline-flex;align-items:center;gap:4px;margin-top:6px;color:#a7b7fa;font-size:10px}.summary-note{max-width:460px;margin:4px auto 22px;padding:7px 10px;border:1px solid #41495f;border-radius:5px;color:#929aae;background:#151925;text-align:center;font-size:10px}.companion-empty{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;color:#858da0;text-align:center;font-size:12px}.companion-empty svg{color:#a6b6f9}.companion-empty strong{color:#dfe4ef;font-size:15px}.companion-thinking{display:flex;align-items:center;gap:7px;margin-left:40px;color:#a8b7f9;font-size:11px}.companion-error{padding:9px 22px;border-top:1px solid #633a47;color:#ffabb7;background:#28141b;font-size:12px}.companion-composer{padding:12px 18px calc(18px + env(safe-area-inset-bottom));border-top:1px solid #292d3a;background:#10131b}.companion-composer textarea{width:100%;min-height:76px;resize:vertical;border:1px solid #353c4d;border-radius:7px;padding:12px;color:#e7eaf2;background:#0c0e14;outline:0;line-height:1.55}.companion-composer textarea:focus{border-color:#7086da;box-shadow:0 0 0 3px #7188dc1c}.companion-composer>div:last-child{display:flex;justify-content:space-between;margin-top:9px}.send-button{width:40px;height:34px;display:grid;place-items:center;border:1px solid #7085d8;border-radius:7px;color:#fff;background:#5268be}.send-button:disabled{opacity:.4;cursor:default}.image-preview{height:42px;display:flex;align-items:center;gap:8px;margin-bottom:9px;padding:4px;border:1px solid #363d50;border-radius:6px;color:#aeb8ce;background:#141824;font-size:11px}.image-preview img{width:32px;height:32px;border-radius:4px;object-fit:cover}.image-preview span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.image-preview button{width:26px;height:26px;margin-left:auto}.companion-auth{position:fixed;inset:0;display:grid;place-items:center;padding:18px;background:#05060bd9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.companion-auth section{width:min(340px,100%);padding:24px;border:1px solid #435178;border-radius:8px;background:#111521}.companion-auth svg{color:#aebcff}.companion-auth h1{margin:14px 0;font-size:17px}.companion-auth input{width:100%;height:40px;padding:0 10px;border:1px solid #3a4255;border-radius:6px;color:#edf0f8;background:#0b0d13;outline:0}.companion-auth button{width:100%;height:40px;margin-top:10px;border:1px solid #7185db;border-radius:6px;color:#fff;background:#5268be}.spin{animation:companion-spin 1s linear infinite}@keyframes companion-spin{to{transform:rotate(360deg)}}:root[data-companion-theme=light] .companion-shell{background:#fff}:root[data-companion-theme=light] .companion-header,:root[data-companion-theme=light] .companion-composer{border-color:#dce0e8;background:#f9fafc}:root[data-companion-theme=light] .companion-message p{border-color:#aab7dd;color:#252b39;background:#fff}:root[data-companion-theme=light] .companion-message.user p{border-color:#c7cbd5;background:#f4f6f9}:root[data-companion-theme=light] .companion-composer textarea{border-color:#cbd1df;color:#252a37;background:#fff}:root[data-companion-theme=light] .companion-actions button,:root[data-companion-theme=light] .image-button{border-color:#d2d7e1;color:#56617a;background:#fff}@media(max-width:640px){.companion-shell{width:100%;min-height:100svh}.companion-header{padding:0 12px}.companion-feed{padding:20px 12px 34px}.companion-composer{padding:10px 12px calc(14px + env(safe-area-inset-bottom))}.companion-message{gap:8px}.companion-message p{font-size:13px}}