*{box-sizing:border-box}:root{font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;color:var(--text);background:var(--page-bg);font-size:14px;--text:#292735;--page-bg:#fcfcfd;--panel-bg:#f6f5f9;--surface-bg:#fff;--soft-bg:#faf9fc;--code-bg:#f5f4f8;--bubble-bg:#f0ebf7;--login-bg:#f8f7fc;--tabs-bg:#ebe9f0;--approval-bg:#fff6e7;--line:#eae8ef;--input-text:#51495b;--code-text:#7f748b;--input-border:#ded7e8}body{margin:0;height:100dvh;display:flex}button,input,textarea,select{font:inherit}button{cursor:pointer;border:0;background:none;color:inherit}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid #ad95da;outline-offset:3px}.icon{width:36px;height:36px;border-radius:10px;font-size:20px;flex-shrink:0}.icon:hover{background:#eeeaf5}aside{width:270px;flex-shrink:0;background:var(--panel-bg);border-right:1px solid var(--line);padding:25px 16px 12px;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:10px;padding:0 8px 26px;font-weight:700;letter-spacing:1px}.brandmark{background:#8270a8;color:white;width:32px;height:36px;display:grid;place-items:center;border-radius:11px;font-family:Georgia;font-size:23px}.brand small{display:block;color:#93909d;font-weight:400;font-size:10px;letter-spacing:2px;margin-top:2px}.new{background:var(--surface-bg);border:1px solid #e3deec;border-radius:10px;padding:12px;text-align:left;font-weight:600;color:#685184}.search{display:flex;gap:8px;padding:13px 8px;color:#9b96a6}.search input{border:0;background:transparent;outline:none;min-width:0;width:100%;font-size:12px}.tabs{display:flex;gap:4px;background:var(--tabs-bg);padding:3px;border-radius:9px}.tabs button{flex:1;padding:7px;font-size:12px;border-radius:7px;color:#89838f}.tabs .selected{background:var(--surface-bg);color:#53445f;box-shadow:0 1px 3px #3322440a}.list-heading{display:flex;justify-content:space-between;color:#a09aa9;font-size:11px;margin:25px 8px 9px}.list-heading button{font-size:11px;color:#8b7d9e}nav{flex:1;overflow:auto}.thread{display:block;width:100%;text-align:left;padding:12px;border-radius:10px;margin-bottom:4px}.thread:hover,.thread.active{background:#ebe6f3}.thread strong{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:500;font-size:12px}.thread small{display:block;margin-top:6px;color:#99909f;font-size:10px}.sidebar-foot{border-top:1px solid var(--line);padding:12px 5px 0;font-size:11px;display:flex;align-items:center;gap:5px}.sidebar-foot .icon{margin-left:auto}.dot{display:inline-block;width:6px;height:6px;background:#83a696;border-radius:100%;margin-right:3px}.muted{color:#a19aa9;font-weight:400}.mobile{display:none}main{min-width:0;flex:1;display:flex;flex-direction:column;height:100dvh}header{height:76px;display:flex;align-items:center;padding:0 28px;gap:12px;border-bottom:1px solid var(--line)}.header-title{flex:1;min-width:0}.header-title strong{display:block;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:500}.header-title span{display:block;font-size:10px;color:#a19aa9;margin-top:5px}.preview-tag{font-size:10px;color:#9a8ba9;background:#f1edf6;padding:4px 8px;border-radius:6px}.conversation{flex:1;overflow:auto;scroll-behavior:smooth}.welcome{max-width:760px;margin:0 auto;padding:52px 32px 24px}.eyebrow{font-size:9px;letter-spacing:2px;color:#a49aaf}.welcome h1{font-size:32px;line-height:1.55;font-weight:500;letter-spacing:-1px;margin:20px 0 16px}.welcome h1 span{color:#9a87b3}.welcome>p{line-height:1.9;color:#96909f;font-size:12px}.capabilities{display:flex;gap:16px;color:#887e94;font-size:10px;margin:25px 0 38px}.demo-label{border-top:1px solid var(--line);padding-top:22px;font-size:10px;color:#84798e}.demo-label span{float:right;font-size:9px;color:#b0a9b8}.assistant{margin-top:18px}.author{display:flex;align-items:center;gap:8px;font-size:11px;font-weight:600}.avatar{width:24px;height:24px;border-radius:7px;background:#eee9f6;color:#8d79a7;display:grid;place-items:center}.message{font-size:12px;line-height:1.9;margin-left:32px;overflow-wrap:anywhere}.table-wrap{overflow-x:auto;margin:15px 0;border:1px solid var(--line);border-radius:9px}table{border-collapse:collapse;min-width:360px;width:100%;font-size:11px;text-align:left}th{background:#f7f6fa;font-weight:500;color:#91879b}th,td{padding:10px 12px;border-bottom:1px solid var(--line)}tr:last-child td{border-bottom:0}.pill{background:#eef5f0;color:#789b85;font-size:10px;padding:3px 6px;border-radius:4px}pre{background:var(--code-bg);border:1px solid #ece9f1;border-radius:9px;padding:13px;overflow-x:auto;white-space:pre;font-size:11px;color:var(--code-text)}footer{padding:10px 30px 14px;max-width:824px;width:100%;margin:auto}.context-bar{display:flex;align-items:center;justify-content:space-between;font-size:10px;color:#a29aaa;margin-bottom:9px;gap:8px}.context-bar button{font-size:10px;color:#877398;background:#f2eef8;padding:6px 9px;border-radius:6px}.context-bar>span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.composer{background:var(--surface-bg);border:1px solid var(--input-border);border-radius:15px;box-shadow:0 4px 20px #58407006;padding:13px}.composer textarea{width:100%;resize:none;border:0;outline:none;background:transparent;font-size:12px;line-height:1.6;max-height:160px;color:var(--input-text)}.composer textarea::placeholder{color:#b2aab9}.composer-actions{display:flex;align-items:center;gap:8px}.composer-actions>span{font-size:9px;color:#ada4b6}.composer-actions .icon{color:#a595b4;width:28px;height:28px}.send{margin-left:auto;background:#8b73ae;color:white;width:auto;min-width:30px}.footnote{text-align:center;color:#b0a8b8;font-size:9px;padding-top:10px}dialog{border:1px solid var(--line);border-radius:22px;width:min(440px,100%);padding:26px;color:inherit;box-shadow:0 20px 100px #32204530}dialog::backdrop{background:#27213150;backdrop-filter:blur(3px)}.sheet-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}h2{font-weight:500;font-size:20px;margin:9px 0}dialog label{display:block;font-size:12px;color:#91859c;margin-bottom:16px}dialog select,dialog input{display:block;width:100%;margin-top:8px;border:1px solid #e6e0ec;border-radius:10px;padding:11px;background:var(--soft-bg);color:#51465c}.settings-note{font-size:11px;color:#a096aa;line-height:1.8}.primary{width:100%;padding:12px;background:#8065a8;color:white;border-radius:10px;margin-top:8px}#toast{position:fixed;bottom:190px;left:50%;transform:translateX(-50%);z-index:20;background:#40364c;color:white;padding:12px 18px;border-radius:12px;font-size:12px;width:max-content;max-width:85vw;box-shadow:0 5px 25px #44335522}.history{width:100%;max-width:none;margin:0;padding:25px}.history article{margin:20px 0}.history .text{white-space:pre-wrap;line-height:1.8;font-size:12px;overflow-wrap:anywhere}.error-box{padding:18px;font-size:12px;color:#a56c65;line-height:1.8}.scrim{display:none}
.login{position:fixed;inset:0;z-index:100;background:var(--login-bg);display:grid;place-items:center;padding:24px}.login form{width:min(360px,100%)}.login .brandmark{margin-bottom:24px}.login h1{font-size:27px;font-weight:500}.login p{color:#95879e;font-size:12px}.login label{display:block;color:#877791;font-size:12px;margin:20px 0}.login input{display:block;border:1px solid var(--input-border);border-radius:12px;background:var(--surface-bg);padding:13px;width:100%;margin-top:8px;font-size:16px}#loginError{color:#ab665e}.markdown{font-size:13px;line-height:1.85;overflow-wrap:anywhere}.markdown p{margin:10px 0}.markdown h1,.markdown h2,.markdown h3{font-size:18px;line-height:1.5;margin:20px 0 10px}.markdown ul,.markdown ol{padding-left:22px}.markdown code{font-family:Consolas,monospace;font-size:12px}.markdown :not(pre)>code{background:#f1edf6;padding:2px 5px;border-radius:5px}.markdown a{color:#8266a7}.markdown blockquote{border-left:3px solid #d2c2e5;margin:12px 0;padding-left:14px;color:#8b7a98}.session-actions{display:flex;justify-content:space-between;gap:8px;margin-top:20px;font-size:12px}.session-actions button{padding:9px;background:#f1ecf7;border-radius:7px}#stopTask{background:#f6e8e6;color:#a45c55;border-radius:7px;padding:7px;order:2}.approvals{margin:15px;background:var(--approval-bg);border:1px solid #e8d8b8;border-radius:12px;padding:16px}.approvals button{background:#8065a8;color:white;padding:10px;border-radius:8px;margin-right:8px}.running{font-size:11px}button:disabled{opacity:.5;cursor:wait}.history .text{white-space:normal}
.message-header{display:flex;align-items:center;gap:9px;margin-bottom:10px;min-width:0}.message-avatar{width:32px;height:32px;flex-shrink:0;border-radius:50%;object-fit:cover;display:grid;place-items:center;background:#eee8f6;color:#89719f;font-size:12px}.user-avatar{background:#e8e2ef;color:#756184}.tool-avatar{border-radius:9px;background:#ececf1;color:#878494}.message-name{font-size:12px;font-weight:600;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.message-time{margin-left:auto;white-space:nowrap;font-size:10px;color:#aaa1b2;font-weight:400;font-variant-numeric:tabular-nums}.history article{padding-top:7px}.history article.user{padding:7px 0 0}.history .user .markdown{background:var(--bubble-bg);padding:10px 14px;border-radius:14px}.history .user .markdown>:first-child{margin-top:0}.history .user .markdown>:last-child{margin-bottom:0}.history .markdown{min-width:0}@media not all and (min-width:850px){.history .markdown{padding-left:0}.message-time{font-size:9px}.message-name{font-size:11px}}
.history .user .message-header{flex-direction:row-reverse}.history .user .message-time{margin-left:0;margin-right:auto}
.older-messages{padding:10px 14px;border:1px solid var(--line);border-radius:9px;background:#f5f2fa;color:#8c789f;font-size:12px;margin-bottom:18px;min-height:44px}.older-messages[hidden]{display:none}
html{height:100%;overflow:hidden}body{height:var(--app-height,100dvh);overflow:hidden;overscroll-behavior:none}main{height:var(--app-height,100dvh);min-height:0;overflow:hidden}main>header{flex-shrink:0}.conversation{min-height:0;flex:1 1 0;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}main>footer{flex:0 0 auto;margin:0 auto;position:relative;z-index:2}aside{min-height:0}nav{min-height:0}
@media(min-width:850px){body.nav-collapsed aside{display:none}}
@media not all and (min-width:850px){aside{position:fixed;inset:0 auto 0 0;width:290px;z-index:12;transform:translateX(-100%);transition:transform .2s;padding-top:max(22px,env(safe-area-inset-top))}body.nav-open aside{transform:translateX(0)}.scrim:not([hidden]){display:block;position:fixed;inset:0;z-index:11;background:#26202e55}.mobile{display:block;margin-left:auto}header{height:68px;padding:0 14px;gap:8px}.header-title strong{font-size:13px}.header-title span{font-size:9px}.welcome{padding:35px 23px 18px}.welcome h1{font-size:28px;line-height:1.6;margin:20px 0 14px}.welcome>p{font-size:12px}.capabilities{gap:16px;margin:25px 0 32px}.demo-label span{float:none;display:block;margin-top:7px}.message{margin-left:0;font-size:12px}table{min-width:365px}.assistant{margin-top:18px}footer{padding:10px 16px max(12px,env(safe-area-inset-bottom));background:var(--page-bg)}.context-bar{font-size:9px}.composer{padding:12px;border-radius:16px}.composer textarea{font-size:16px}.composer-actions{margin-top:6px}.composer-actions>span{font-size:9px}.footnote{font-size:8px}dialog{margin:auto 0 0;width:100%;max-width:100%;border-radius:24px 24px 0 0;padding:24px 24px max(24px,env(safe-area-inset-bottom));max-height:90dvh}dialog input,dialog select{font-size:16px}.history{padding:18px}.preview-tag{font-size:9px}.thread{min-height:54px}.new{min-height:44px}}

.tool-call{border:1px solid #e5e2eb;border-radius:12px;background:var(--soft-bg);overflow:hidden}.tool-call summary{cursor:pointer;display:flex;gap:12px;align-items:center;padding:10px 12px;font-size:13px}.tool-call summary:before{content:"▸";flex:none}.tool-call[open] summary:before{content:"▾"}.tool-call summary span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0}.tool-call summary small{flex:none;color:#85808f}.tool-body{padding:0 12px 12px;font-size:12px}.tool-body pre{max-height:360px;overflow:auto}.expand-message{margin:8px 0;padding:8px 12px}.older-messages:disabled{opacity:.5}

.context-actions{display:flex;align-items:center;gap:7px;min-width:0;flex:0 1 auto}.context-actions #modelChip{min-width:0;max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.permission-control{display:flex;flex-shrink:0}.permission-control select{height:30px;max-width:120px;border:1px solid #e0d9ea;border-radius:7px;background:#f2eef8;color:#78618f;padding:4px 22px 4px 8px;font-size:11px;cursor:pointer}.permission-control select:disabled{opacity:.55;cursor:default}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media not all and (min-width:850px){.context-bar{flex-wrap:wrap;justify-content:flex-start}.context-actions{width:100%}.context-actions #modelChip{max-width:calc(100% - 128px)}.context-bar>span{font-size:9px;max-width:100%}.permission-control select{font-size:12px;min-height:36px;max-width:120px}.context-actions #modelChip{min-height:36px}}

.back-to-latest{position:absolute;left:50%;top:-54px;transform:translateX(-50%);width:42px;height:42px;display:grid;place-items:center;border:1px solid #ded6e9;border-radius:50%;background:var(--surface-bg);color:#8065a8;font-size:25px;line-height:1;box-shadow:0 3px 15px #58407020;z-index:3}.back-to-latest[hidden]{display:none}.back-to-latest:hover{background:#f5f1fa}.back-to-latest[aria-busy="true"]{opacity:.7;cursor:wait}

.send,#stopTask{font-size:12px;line-height:1;height:30px;min-height:30px;padding:7px 10px;border-radius:7px;white-space:nowrap;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center}#stopTask[hidden]{display:none}
:root[data-theme="dark"]{color-scheme:dark;--text:#fff;--page-bg:#000;--panel-bg:#080808;--surface-bg:#101010;--soft-bg:#111;--code-bg:#111;--bubble-bg:#151515;--login-bg:#000;--tabs-bg:#171717;--approval-bg:#17130d;--line:#2c2733;--input-text:#fff;--code-text:#fff;--input-border:#3b3248}
:root[data-theme="light"]{color-scheme:light}.theme-toggle{display:grid;place-items:center}.theme-toggle svg{pointer-events:none}.theme-toggle[aria-pressed="true"]{color:#cbb7e5;background:#241c2e}.theme-toggle[aria-pressed="true"] .bulb-glass{fill:#483559}:root[data-theme="dark"] dialog input,:root[data-theme="dark"] dialog select,:root[data-theme="dark"] .search input{color:#fff}:root[data-theme="dark"] .tabs .selected{color:#fff}:root[data-theme="dark"] th{background:#111}:root[data-theme="dark"] .markdown :not(pre)>code{background:#19141f}:root[data-theme="dark"] .tool-call,:root[data-theme="dark"] pre,:root[data-theme="dark"] .table-wrap{border-color:var(--line)}

:root[data-theme="dark"] .session-actions button{background:var(--soft-bg)}:root[data-theme="dark"] .permission-control option{background:var(--surface-bg);color:#fff}

.usage-entry{margin-left:auto;flex-shrink:0;padding:7px 9px;border-radius:7px;background:#f1edf7;color:#877398;font-size:11px}.sidebar-foot #refresh{margin-left:0}.usage-bucket{display:flex;flex-direction:column;gap:9px;margin:12px 0 20px}.usage-window{display:grid;grid-template-columns:1fr auto;gap:9px;margin-top:8px;font-size:12px}.usage-window progress,.usage-window small{grid-column:1 / -1}.usage-window progress{width:100%;height:8px;accent-color:#8b73ae}.usage-window small,.usage-bucket small,.usage-updated{font-size:11px;color:#9c90a5;line-height:1.6}.balance-amount{font-size:28px;font-weight:500}.footnote{overflow-wrap:anywhere}.usage-body{min-height:70px}

.running{display:flex;align-items:center;gap:8px}.running[hidden]{display:none}.activity-spinner{display:inline-block;width:13px;height:13px;border:2px solid #a88bc8;border-top-color:transparent;border-radius:50%;animation:activity-spin .8s linear infinite;flex-shrink:0}@keyframes activity-spin{to{transform:rotate(360deg)}}.history article.reasoning .markdown{padding-left:0}@media(prefers-reduced-motion:reduce){.activity-spinner{animation-duration:2s}}

.attachment-tray{display:flex;gap:8px;overflow:auto;max-height:112px;margin-bottom:10px;padding:2px}.attachment-tray[hidden]{display:none}.pending-attachment{display:flex;align-items:center;gap:8px;border:1px solid var(--input-border);border-radius:10px;padding:7px 9px;min-width:170px;max-width:250px;flex-shrink:0;background:var(--soft-bg);font-size:12px}.attachment-info{min-width:0;flex:1}.attachment-info strong,.attachment-card strong{display:block;font-size:11px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attachment-info small,.attachment-card small{display:block;color:#a095ac;font-size:10px;margin-top:4px}.pending-attachment button{min-width:28px;min-height:30px;flex-shrink:0;font-size:12px}.attachment-error{border-color:#ba847e}.message-attachments{display:flex;flex-wrap:wrap;gap:7px;margin-top:8px;max-width:100%}.attachment-card{display:flex;align-items:center;gap:8px;border:1px solid var(--input-border);border-radius:10px;padding:9px 11px;max-width:260px;min-width:0;text-decoration:none;background:var(--soft-bg)}.attachment-card>span:last-child{min-width:0}

.attachment-tray{justify-content:flex-start;align-items:flex-start}.upload-symbol{display:block;width:38px;height:38px;flex-shrink:0;color:#aaa5b0}.upload-symbol svg{display:block;width:100%;height:100%;fill:none}.upload-track{stroke:#e9e5ed;stroke-width:2}.upload-progress{stroke:#9677bc;stroke-width:2.5;stroke-linecap:round;transform:rotate(-90deg);transform-origin:center;transition:stroke-dashoffset .15s linear}.upload-file{stroke:currentColor;stroke-width:1.6;stroke-linejoin:round;stroke-linecap:round}.upload-ready{color:#9677bc}.upload-ready .upload-track,.upload-ready .upload-progress{display:none}.context-actions #modelChip,.permission-control select{height:28px;min-height:28px;padding-top:3px;padding-bottom:3px}@media not all and (min-width:850px){.context-actions #modelChip,.permission-control select{height:28px;min-height:28px;font-size:11px}}

.tool-group{margin:20px 0;border:1px solid var(--input-border);border-radius:12px;background:var(--soft-bg);overflow:hidden}.tool-group>summary{display:flex;align-items:center;gap:10px;min-height:42px;padding:11px 12px;cursor:pointer;list-style:none;font-size:12px;color:#8b73ae}.tool-group>summary::-webkit-details-marker{display:none}.tool-group>summary:before{content:"▸";flex:none}.tool-group[open]>summary:before{content:"▾"}.tool-group-label{flex:1;min-width:0}.tool-group-status{flex:none;font-size:10px;color:#a19aa9}.tool-group-status.active{color:#9677bc}.tool-group-status.failed{color:#a45c55}.tool-group-items{padding:0 12px 10px;border-top:1px solid var(--line)}.history .tool-group article{margin:10px 0 0;padding-top:0}.history .tool-group .markdown{padding-left:0}.tool-group .message-header{gap:6px;margin:0 2px 6px}.tool-group .message-name,.tool-group .message-time{font-size:10px;font-weight:400}.tool-group .tool-avatar{display:none}.tool-group .tool-call{background:var(--surface-bg);border-color:var(--line);border-radius:8px}.tool-group .tool-call summary{padding:8px 10px;font-size:12px}

/* Single source for message sizing: streaming, restored history and both engines share these rules. */
.history article.agent,.history article.user{display:block;box-sizing:border-box;width:100%;max-width:100%;min-width:0}
.history article.agent>.markdown,.history article.user>.markdown{display:block;box-sizing:border-box;max-width:100%;min-width:0;margin:0;white-space:normal;word-break:normal;overflow-wrap:anywhere}.history article.agent>.markdown{width:100%;padding-left:0}
.history .markdown pre,.history .markdown .table-wrap{max-width:100%;min-width:0}
.message-divider{display:flex;align-items:center;justify-content:center;gap:12px;width:100%;margin:22px 0;color:#aaa1b2;font-size:11px;line-height:1.4}.message-divider::before,.message-divider::after{content:"";flex:1;min-width:0;border-top:1px solid var(--line)}.timeline-time{flex:none;white-space:nowrap;text-align:center}
.header-title .connection-status{display:flex;align-items:center;gap:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.connection-status::before{content:"";width:6px;height:6px;flex:none;border-radius:50%;background:#c6a05f;transition:background-color 160ms ease}.connection-status[data-state="connected"]::before{background:#83a696}.connection-status[data-state="offline"]::before{background:#bf7771}.connection-status[data-state="auth"]::before{background:#a19aa9}
.thread-row{display:flex;align-items:stretch;margin-bottom:4px;border-radius:10px;min-width:0}.thread-row.active,.thread-row:hover{background:var(--accent-soft)}.thread-row .thread{flex:1;min-width:0;width:auto;margin-bottom:0;padding-right:4px}.thread-more{width:34px;min-height:44px;flex:none;border-radius:8px;font-size:22px;color:var(--accent-text)}.thread-more:hover{background:var(--accent-line)}.thread-pin-badge{color:var(--accent-text);font-size:10px}.thread-actions-sheet h2{max-width:calc(100% - 40px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.thread-actions-list{display:grid;gap:6px}.thread-actions-list button{min-height:44px;padding:11px 14px;text-align:left;border-radius:9px;background:var(--soft-bg)}.thread-actions-list .danger{color:#b66560}.thread-actions-note{font-size:11px;color:var(--accent-muted);line-height:1.7}.thread-action-error{font-size:12px;color:#b66560;line-height:1.7}

:root{--context-control-height:28px;--action-control-height:30px;--control-radius:7px}.context-actions{width:auto;flex:0 1 auto;max-width:100%;gap:7px}.context-actions #modelChip,.permission-control select{box-sizing:border-box;height:var(--context-control-height);min-height:var(--context-control-height);border:1px solid var(--input-border);border-radius:var(--control-radius);background:#f2eef8;color:#78618f;font-size:11px;line-height:20px;padding-top:3px;padding-bottom:3px}.context-actions #modelChip{flex:0 1 auto;min-width:0;max-width:160px;text-align:left;padding-left:8px;padding-right:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.permission-control{flex:0 0 112px}.permission-control select{width:112px;max-width:112px}.composer-actions .send,#stopTask{height:var(--action-control-height);min-height:var(--action-control-height);border-radius:var(--control-radius);font-size:12px;line-height:1;padding:7px 10px;white-space:nowrap}.composer-actions #attach{width:30px;height:30px;border-radius:var(--control-radius)}@media not all and (min-width:850px){.context-actions{width:auto;flex:0 1 auto}}

/* Shared controls, with an independent accent for each engine. */
:root{--accent:#8b73ae;--accent-strong:#8065a8;--accent-text:#78618f;--accent-soft:#f2eef8;--accent-line:#ded7e8;--accent-muted:#9a87b3}:root[data-engine="dsh"]{--accent:#5c98d4;--accent-strong:#4c86c3;--accent-text:#4379b0;--accent-soft:#edf4fc;--accent-line:#cbddef;--accent-muted:#76a1cb;--bubble-bg:#eaf2fc;--input-border:#cbddef}:root[data-engine="dsh"][data-theme="dark"]{--accent:#74afe7;--accent-strong:#477fb8;--accent-text:#9bc8f5;--accent-soft:#14263b;--accent-line:#2c4969;--accent-muted:#8cb6df;--bubble-bg:#101c2b;--input-border:#2c4969;--line:#27313d}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline-color:var(--accent)}.brandmark,.send,.primary,.approvals button{background:var(--accent-strong)}.icon:hover,.thread:hover,.thread.active{background:var(--accent-soft)}.new{color:var(--accent-text);border-color:var(--accent-line)}.tabs .selected,.thread.active strong{color:var(--accent-text)}.welcome h1 span{color:var(--accent-muted)}.preview-tag,.usage-entry,.session-actions button,.older-messages{background:var(--accent-soft);color:var(--accent-text)}.older-messages{border-color:var(--accent-line)}.context-actions #modelChip,.permission-control select{background:var(--accent-soft);color:var(--accent-text);border-color:var(--accent-line)}.markdown a{color:var(--accent-text)}.markdown blockquote{border-color:var(--accent-line);color:var(--accent-muted)}.back-to-latest{color:var(--accent-text);border-color:var(--accent-line)}.back-to-latest:hover{background:var(--accent-soft)}.usage-window progress{accent-color:var(--accent)}.activity-spinner{border-color:var(--accent);border-top-color:transparent}.upload-progress{stroke:var(--accent)}.upload-track{stroke:var(--accent-line)}.upload-ready{color:var(--accent)}.tool-group>summary,.tool-group-status.active{color:var(--accent)}:root[data-engine="dsh"] .markdown :not(pre)>code{background:var(--accent-soft)}:root[data-engine="dsh"] .theme-toggle[aria-pressed="true"]{color:#9cc9f6;background:#152942}:root[data-engine="dsh"] .theme-toggle[aria-pressed="true"] .bulb-glass{fill:#24486d}

.composer-actions .icon{color:var(--accent-text)}:root[data-engine="dsh"] .tabs .selected{color:var(--accent-text)}:root[data-engine="dsh"] #toast{background:#29445f}.capabilities{color:var(--accent-muted)}

/* Brief feedback motion; scrolling is timed in app.js so long histories stay fast. */
#toast{pointer-events:none}#toast:not([hidden]){animation:toast-in 160ms ease-out both}#toast.toast-leaving{animation:toast-out 180ms ease-in both}
@keyframes toast-in{from{opacity:0;transform:translateX(-50%) translateY(6px)}to{opacity:1;transform:translateX(-50%) translateY(0)}}
@keyframes toast-out{from{opacity:1;transform:translateX(-50%) translateY(0)}to{opacity:0;transform:translateX(-50%) translateY(4px)}}
dialog[open],.error-box{animation:panel-in 160ms ease-out both}@keyframes panel-in{from{opacity:0;translate:0 6px}to{opacity:1;translate:0 0}}
button{transition:background-color 120ms ease,color 120ms ease,border-color 120ms ease,opacity 120ms ease}
@media(prefers-reduced-motion:reduce){#toast:not([hidden]),#toast.toast-leaving,dialog[open],.error-box{animation:none}button,aside{transition:none}.conversation{scroll-behavior:auto}}
.approvals p{overflow-wrap:anywhere;line-height:1.6}.approvals details{margin:10px 0}.approvals summary{cursor:pointer}.approvals pre{max-height:180px;max-width:100%;overflow:auto}.approvals>div+div{border-top:1px solid var(--line);margin-top:14px;padding-top:14px}
.preview-tag{text-decoration:none;white-space:nowrap}

/* Claude accent sampled from the supplied swatch: #DA7757. */
:root[data-engine="claude"]{--accent:#da7757;--accent-strong:#bc5d3f;--accent-text:#a94d30;--accent-soft:#fff0e8;--accent-line:#ecc2ae;--accent-muted:#b46d4e;--bubble-bg:#ffede2;--input-border:#ecc2ae}
:root[data-engine="claude"][data-theme="dark"]{--accent:#da7757;--accent-strong:#b75f42;--accent-text:#edab86;--accent-soft:#35231c;--accent-line:#644133;--accent-muted:#d59c7d;--bubble-bg:#302018;--input-border:#644133;--line:#49352b}
:root[data-engine="claude"] .brandmark,:root[data-engine="claude"] .send,:root[data-engine="claude"] .primary,:root[data-engine="claude"] .approvals button{background:var(--accent)}
:root[data-engine="claude"] .markdown :not(pre)>code{background:var(--accent-soft)}:root[data-engine="claude"] #toast{background:#614132}
:root[data-engine="claude"] .theme-toggle[aria-pressed="true"]{color:#edab86;background:#35231c}:root[data-engine="claude"] .theme-toggle[aria-pressed="true"] .bulb-glass{fill:#644133}


/* Empty conversations show only the active workstation identity. */
.welcome{box-sizing:border-box;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;min-height:100%;max-width:none;margin:0;padding:24px;text-align:center}
.welcome-avatar{display:block;width:104px;height:104px;flex:none;object-fit:cover;border-radius:50%}
.welcome .welcome-name{margin:0;font-size:24px;font-weight:700;line-height:1.3;letter-spacing:0;color:var(--accent)}
@media(max-height:620px){.welcome{gap:12px;padding:16px}.welcome-avatar{width:76px;height:76px}.welcome .welcome-name{font-size:22px}}

/* Previously opened clients only refresh CSS: replace their retired welcome content too. */
.welcome:has(.eyebrow)>*{display:none}
.welcome:has(.eyebrow)::before{content:"";display:block;flex:none;width:104px;height:104px;border-radius:50%;background:url('./avatars/codex.jpg') center/cover no-repeat}
.welcome:has(.eyebrow)::after{content:"— ChatGPT —";display:block;font-size:24px;font-weight:700;line-height:1.3;color:var(--accent)}
:root[data-engine="dsh"] .welcome:has(.eyebrow)::before{background-image:url('./avatars/dsh.jpg')}
:root[data-engine="dsh"] .welcome:has(.eyebrow)::after{content:"— Deepseek —"}
:root[data-engine="claude"] .welcome:has(.eyebrow)::before{background-image:url('./avatars/claude.png')}
:root[data-engine="claude"] .welcome:has(.eyebrow)::after{content:"— Claude —"}
@media(max-height:620px){.welcome:has(.eyebrow)::before{width:76px;height:76px}.welcome:has(.eyebrow)::after{font-size:22px}}

.welcome .welcome-name{display:flex;align-items:center;gap:12px}
.welcome .welcome-name::before,.welcome .welcome-name::after{content:"";display:block;width:28px;border-top:2px solid currentColor;opacity:.65}

/* Old DSH clients also show the native source instead of a stale web preference. */
:root[data-engine="dsh"] .permission-control{position:relative}
:root[data-engine="dsh"] .permission-control select{color:transparent}
:root[data-engine="dsh"] .permission-control::after{content:"本机权限";position:absolute;left:9px;top:0;line-height:var(--context-control-height);font-size:11px;color:var(--accent-text);pointer-events:none}

/* User bubbles fit short content, using the full row only when needed. */
.history article.user>.markdown{width:fit-content;max-width:100%;margin-left:auto;margin-right:0;text-align:left}
.reply-actions{display:flex;justify-content:flex-end;gap:4px;margin-top:8px;clear:both}
.reply-action{display:grid;place-items:center;width:30px;height:30px;padding:7px;color:var(--accent-muted);border-radius:7px}
.reply-action:hover{color:var(--accent-text);background:var(--accent-soft)}
.reply-action svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.reply-share p{font-size:12px;color:var(--accent-muted)}.reply-share button{padding:10px;border-radius:7px;background:var(--accent-soft);margin-right:8px;color:var(--accent-text)}
.app-settings-entry{margin-right:auto;padding:7px 0;font-size:11px;color:var(--accent-text)}.app-update-check{display:block;width:100%;min-height:44px;text-align:left;padding:11px 14px;border-radius:9px;background:var(--soft-bg);font-size:12px}

/* Keep image previews in one touch-scrollable row in both attachment surfaces. */
.message-attachments{flex-wrap:nowrap;overflow-x:auto;overscroll-behavior-x:contain;touch-action:pan-x pan-y;gap:8px;padding-bottom:2px}.attachment-card{box-sizing:border-box;width:240px;max-width:min(240px,100%);flex:0 0 auto}.attachment-card>span:last-child{flex:1}.attachment-thumbnail{display:block;flex:none;width:64px;height:64px;object-fit:cover;border-radius:8px;background:var(--input-bg)}.pending-attachment{box-sizing:border-box;width:230px;padding:7px 9px}.pending-preview{position:relative;flex:none;width:56px;height:56px}.pending-preview .attachment-thumbnail{width:56px;height:56px}.pending-preview .upload-symbol{position:absolute;right:0;bottom:0;width:24px;height:24px;border-radius:50%;background:var(--soft-bg)}.attachment-tray{flex-wrap:nowrap;overscroll-behavior-x:contain}

.approvals{margin-top:16px;margin-bottom:18px}

/* Keep Codex dark controls subdued, using the same tokens in the native client. */
:root[data-engine="codex"][data-theme="dark"]{--text:#e7e2ed;--input-text:#e4dcea;--accent-text:#c2acd9;--accent-soft:#241e2d;--accent-line:#443650;--accent-muted:#ad9fbb;--bubble-bg:#201b27;--input-border:#443650}