/* Chat is a normal document-flow workspace: navigation and advertisements stay outside it. */
.chat-workspace{--chat-bg:#fff;--chat-panel:#f6f8fb;--chat-line:#dce3ed;--chat-text:#152238;--chat-muted:#5a6980;--chat-accent:#245de2;--chat-soft:#eaf0ff;--chat-error:#ae2736;display:grid;grid-template-columns:232px minmax(0,1fr);max-width:1320px;margin:24px auto 40px;padding:0 20px;gap:0;font:16px/1.65 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--chat-text);color-scheme:light}
html[data-xunl-theme="dark"] .chat-workspace{--chat-bg:#131c2d;--chat-panel:#192337;--chat-line:#334157;--chat-text:#edf2fc;--chat-muted:#b1bfd4;--chat-accent:#99b6ff;--chat-soft:#263854;--chat-error:#ffadb7;color-scheme:dark}
.chat-workspace *{box-sizing:border-box}.chat-workspace [hidden]{display:none!important}.chat-workspace button,.chat-workspace textarea{font:inherit}.chat-workspace button{cursor:pointer}.chat-workspace button:disabled{cursor:default;opacity:.55}.chat-workspace :focus-visible{outline:3px solid var(--chat-accent);outline-offset:3px}.chat-workspace a{color:inherit}.chat-workspace h2{color:var(--chat-text)}
.chat-sidebar{background:var(--chat-panel);border:1px solid var(--chat-line);border-right:0;border-radius:20px 0 0 20px;padding:24px 18px;display:flex;flex-direction:column;gap:22px;min-width:0}.chat-brand{display:flex;gap:12px;align-items:center;text-decoration:none;font-size:23px;letter-spacing:-.6px;font-weight:700}.chat-brand b{font-weight:450;color:var(--chat-muted)}.chat-brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;color:#fff;background:#245de2;font-size:29px}
.chat-button{border:1px solid var(--chat-line);border-radius:11px;min-height:44px;padding:9px 14px;display:inline-flex;gap:9px;align-items:center;justify-content:center;font-weight:600;background:var(--chat-bg);color:var(--chat-text);transition:background .15s,border-color .15s,transform .15s}.chat-button:hover:not(:disabled){border-color:var(--chat-accent);background:var(--chat-soft)}.chat-new{width:100%;justify-content:flex-start}.chat-new>span:first-child{font-size:23px;line-height:1}.chat-quiet{background:transparent}.chat-send{background:#245de2!important;border-color:#245de2!important;color:#fff!important;padding:9px 18px}.chat-send:hover:not(:disabled){background:#194cc4!important}.chat-send>span:last-child{font-size:22px;line-height:1}.chat-stop{background:var(--chat-bg);border-color:var(--chat-muted)}.chat-stop>span:first-child{font-size:12px}
.chat-side-heading{color:var(--chat-muted);font-size:14px;font-weight:650;letter-spacing:.04em;margin:4px 0 -14px}.chat-shortcuts{display:grid;gap:5px}.chat-shortcuts a{display:flex;gap:12px;align-items:center;min-height:45px;padding:9px 8px;border-radius:9px;text-decoration:none;font-size:16px}.chat-shortcuts a:hover{background:var(--chat-soft)}.chat-shortcuts a>span:first-child{width:20px;text-align:center;color:var(--chat-muted)}.chat-side-note{margin-top:auto;padding-top:20px;border-top:1px solid var(--chat-line);font-size:14px;color:var(--chat-muted)}.chat-side-note b{font-size:15px;color:var(--chat-text)}.chat-side-note p{margin:9px 0 0}.chat-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#23825d;margin-right:8px}
.chat-room{background:var(--chat-bg);border:1px solid var(--chat-line);border-radius:0 20px 20px 0;min-width:0;padding:0 28px 16px;display:flex;flex-direction:column}.chat-toolbar{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:14px;border-bottom:1px solid var(--chat-line)}.chat-toolbar>div{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.chat-model{font-size:20px;font-weight:700;letter-spacing:-.4px}.chat-model>span{color:var(--chat-accent);margin-left:4px}.chat-free{font-size:13px;font-weight:600;color:var(--chat-muted);border:1px solid var(--chat-line);border-radius:6px;padding:1px 7px}.chat-toolbar .chat-button{font-size:14px}
.chat-transcript{overflow:auto;overscroll-behavior:contain;scrollbar-gutter:stable;min-height:380px;max-height:64vh;max-height:64svh;padding:30px 4px 20px;flex:1;scroll-behavior:smooth}.chat-welcome{max-width:720px;margin:18px auto 16px;text-align:center}.chat-welcome-mark{font-size:52px;line-height:1.15;color:var(--chat-accent);margin-bottom:16px}.chat-eyebrow{font-size:11px;letter-spacing:.16em;color:var(--chat-muted);font-weight:700;margin:0 0 10px}.chat-welcome h2{font-size:clamp(23px,3vw,32px);line-height:1.35;font-weight:700;letter-spacing:-.8px;margin:0 0 12px}.chat-welcome-sub{font-size:16px;color:var(--chat-muted);margin:0 auto 28px}.chat-starters{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;text-align:left}.chat-starters button{display:grid;grid-template-columns:24px minmax(0,1fr);column-gap:9px;row-gap:5px;border:1px solid var(--chat-line);background:var(--chat-bg);color:var(--chat-text);border-radius:13px;text-align:left;padding:16px 14px;transition:background .15s,border-color .15s,transform .15s}.chat-starters button:hover{background:var(--chat-panel);border-color:var(--chat-accent);transform:translateY(-2px)}.chat-starters button>span{font-size:21px;color:var(--chat-accent);grid-row:span 2}.chat-starters b{font-size:16px;font-weight:650}.chat-starters small{font-size:13px;line-height:1.5;color:var(--chat-muted)}
.chat-messages{max-width:790px;margin:0 auto}.chat-message{margin:0 0 28px;min-width:0}.chat-message-role{font-size:13px;font-weight:700;color:var(--chat-muted);margin:0 0 8px;display:flex;align-items:center;gap:8px}.chat-assistant .chat-message-role:before{content:"✦";color:var(--chat-accent);font-size:20px;line-height:1}.chat-user{margin-left:auto;max-width:88%;width:fit-content}.chat-user .chat-message-role{justify-content:flex-end}.chat-message-content{font-size:17px;line-height:1.85;overflow-wrap:anywhere;min-width:0}.chat-user .chat-message-content{white-space:pre-wrap;background:var(--chat-soft);border-radius:16px 4px 16px 16px;padding:12px 17px;color:var(--chat-text)}.chat-assistant .chat-message-content{padding:0 0 0 2px}.chat-message-content>:first-child{margin-top:0}.chat-message-content>:last-child{margin-bottom:0}.chat-message-content p{margin:0 0 16px}.chat-message-content h1,.chat-message-content h2,.chat-message-content h3,.chat-message-content h4{font-size:1.2em;line-height:1.5;margin:1.4em 0 .65em;color:var(--chat-text)}.chat-message-content ul,.chat-message-content ol{padding-left:1.5em;margin:0 0 16px}.chat-message-content li{padding-left:.25em;margin:.25em 0}.chat-message-content blockquote{border-left:3px solid var(--chat-accent);background:var(--chat-panel);padding:10px 15px;margin:16px 0}.chat-message-content a{color:var(--chat-accent);text-decoration:underline;text-underline-offset:3px}.chat-message-content pre{background:var(--chat-panel);border:1px solid var(--chat-line);border-radius:11px;padding:16px;overflow:auto;font:14px/1.75 ui-monospace,SFMono-Regular,Menlo,monospace;white-space:pre;max-width:100%;margin:16px 0}.chat-message-content code{font:.9em/1.6 ui-monospace,SFMono-Regular,Menlo,monospace;background:var(--chat-panel);border-radius:4px;padding:2px 5px;color:var(--chat-text)}.chat-message-content pre code{background:none;padding:0;font:inherit}.chat-table-wrap{overflow:auto;max-width:100%;margin:16px 0;border:1px solid var(--chat-line);border-radius:9px}.chat-message-content table{border-collapse:collapse;min-width:100%;font-size:15px}.chat-message-content th,.chat-message-content td{padding:9px 13px;border-bottom:1px solid var(--chat-line);border-right:1px solid var(--chat-line);text-align:left}.chat-message-content th{background:var(--chat-panel);font-weight:650}.chat-message-tools{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}.chat-message-tools .chat-button{font-size:13px;min-height:38px;padding:5px 10px}.chat-pending{color:var(--chat-muted);font-size:16px;padding:12px 0;display:flex;gap:10px;align-items:center}.chat-spinner{width:16px;height:16px;border:2px solid var(--chat-line);border-top-color:var(--chat-accent);border-radius:50%;animation:chat-spin .9s linear infinite;flex-shrink:0}.chat-failed .chat-message-content{color:var(--chat-error);border:1px solid var(--chat-line);border-radius:11px;padding:12px 15px;background:var(--chat-panel)}
.chat-announcement{min-height:28px;font-size:14px;color:var(--chat-muted);padding:0 4px 6px}.chat-announcement[data-state="error"]{color:var(--chat-error)}.chat-server-error{padding:12px 15px;border:1px solid var(--chat-error);color:var(--chat-error);border-radius:10px;margin:10px 0;font-size:16px}.chat-composer{margin:0;border:1px solid var(--chat-line);border-radius:17px;padding:14px 14px 11px;background:var(--chat-bg);box-shadow:0 5px 20px #142b5310;transition:border-color .15s,box-shadow .15s}.chat-composer:focus-within{border-color:var(--chat-accent);box-shadow:0 0 0 3px var(--chat-soft)}.chat-composer textarea{width:100%;resize:none;border:0;border-radius:0;background:transparent;outline:0!important;box-shadow:none!important;color:var(--chat-text);font-size:17px;line-height:1.6;min-height:78px;max-height:230px;padding:1px 3px 10px;overflow-y:auto;display:block}.chat-composer textarea::placeholder{color:var(--chat-muted);opacity:1}.chat-composer-bottom{display:flex;justify-content:space-between;gap:12px;align-items:center}.chat-key-hint{font-size:12px;color:var(--chat-muted)}.chat-send-actions{display:flex;gap:8px;margin-left:auto}.chat-meta{display:flex;justify-content:space-between;gap:12px;align-items:baseline;margin:9px 3px 0;color:var(--chat-muted);font-size:12px}.chat-meta[data-over="true"] #chat-context{color:var(--chat-error)}.chat-verified{white-space:nowrap}.chat-privacy{font-size:12px;color:var(--chat-muted);line-height:1.6;margin:8px 3px 0}.chat-sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.chat-guide{grid-column:1/-1;margin-top:36px;padding:0 8px}.chat-guide h2{font-size:21px;margin:0 0 18px;letter-spacing:-.3px}.chat-faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 24px}.chat-faq-grid details{border-bottom:1px solid var(--chat-line);padding:0 0 12px}.chat-faq-grid summary{cursor:pointer;font-weight:600;min-height:44px;padding:10px 0;font-size:16px}.chat-faq-grid p{color:var(--chat-muted);font-size:15px;margin:0 0 7px;line-height:1.8}.chat-reset-dialog{background:var(--chat-bg);color:var(--chat-text);border:1px solid var(--chat-line);border-radius:17px;max-width:450px;width:calc(100% - 32px);padding:24px;box-shadow:0 20px 80px #0004}.chat-reset-dialog::backdrop{background:#07122488}.chat-reset-dialog h2{font-size:22px;margin:0 0 12px}.chat-reset-dialog p{font-size:16px;color:var(--chat-muted);margin:0 0 22px}.chat-reset-dialog>div{display:flex;justify-content:flex-end;gap:10px}
@keyframes chat-spin{to{transform:rotate(360deg)}}
@media(max-width:1000px){.chat-workspace{grid-template-columns:190px minmax(0,1fr);padding:0 16px}.chat-sidebar{padding:22px 14px}.chat-room{padding:0 20px 15px}.chat-starters{gap:10px}.chat-starters button{padding:13px 11px}.chat-starters small{display:none}.chat-transcript{min-height:340px}.chat-key-hint{font-size:11px}}
@media(max-width:720px){.chat-workspace{display:block;padding:0 12px;margin:12px auto 28px}.chat-sidebar{border:1px solid var(--chat-line);border-bottom:0;border-radius:15px 15px 0 0;padding:10px 14px;display:flex;flex-direction:row;align-items:center;justify-content:space-between;gap:12px}.chat-brand{font-size:20px}.chat-brand-mark{width:30px;height:30px;border-radius:9px;font-size:24px}.chat-new{width:auto;font-size:14px;min-height:42px;padding:6px 12px}.chat-side-heading,.chat-shortcuts,.chat-side-note{display:none}.chat-room{border-radius:0 0 15px 15px;padding:0 14px 13px}.chat-toolbar{min-height:60px}.chat-toolbar>div{gap:8px}.chat-model{font-size:18px}.chat-free{font-size:11px}.chat-toolbar .chat-button{font-size:13px;padding:5px 9px;min-height:40px}.chat-transcript{min-height:300px;max-height:58vh;max-height:58svh;padding:20px 1px 14px}.chat-welcome{margin:10px auto 14px}.chat-welcome-mark{font-size:40px;margin-bottom:10px}.chat-welcome h2{font-size:24px}.chat-welcome-sub{font-size:15px;margin-bottom:20px}.chat-starters button{min-height:78px;grid-template-columns:20px minmax(0,1fr);align-items:center;padding:12px 10px}.chat-starters b{font-size:14px;font-weight:550}.chat-starters button>span{grid-row:auto;font-size:19px}.chat-message-content{font-size:16px}.chat-message{margin-bottom:24px}.chat-user{max-width:95%}.chat-user .chat-message-content{padding:10px 13px}.chat-composer{padding:11px 10px 9px;border-radius:14px}.chat-composer textarea{font-size:16px;min-height:70px}.chat-key-hint{max-width:135px;line-height:1.4}.chat-send{min-width:74px;padding:7px 12px}.chat-meta{display:block;line-height:1.65}.chat-verified{display:none}.chat-privacy{font-size:11px}.chat-guide{margin-top:26px;padding:0 3px}.chat-faq-grid{grid-template-columns:1fr;gap:5px}.chat-faq-grid p{font-size:15px}}
@media(prefers-reduced-motion:reduce){.chat-workspace *{scroll-behavior:auto!important;transition:none!important;animation:none!important}.chat-starters button:hover{transform:none}}
/* Keep the composer in the first viewport; only the transcript scrolls. */
.chat-page .tool-hero{padding-top:10px;padding-bottom:12px}.chat-page .tool-title h1{font-size:25px}.chat-page .tool-title p{font-size:14px;line-height:1.55;margin-bottom:0}
.chat-room{height:var(--chat-room-height,clamp(360px,calc(100svh - 176px),820px));min-height:0;overflow:hidden}.chat-room>:not(.chat-transcript){flex-shrink:0}.chat-transcript{flex:1 1 0%;min-height:0;max-height:none}.chat-announcement:empty{display:none}.chat-composer textarea{min-height:54px}.chat-sponsored{grid-column:1/-1;background:var(--chat-bg);border:1px solid var(--chat-line);border-radius:13px;padding:13px 18px;margin-top:18px;min-width:0}.chat-sponsored-label{display:block;font-size:12px;font-weight:600;color:var(--chat-muted);margin-bottom:7px;letter-spacing:.04em}.chat-sponsored>div{overflow:auto;overflow-wrap:anywhere;font-size:15px;line-height:1.7}.chat-sponsored a{color:var(--chat-accent);text-decoration:underline}.chat-sponsored p{margin:0 0 8px}.chat-sponsored p:last-child{margin-bottom:0}.chat-sponsored img{display:block;max-width:100%;max-height:180px;width:auto;height:auto;object-fit:contain}
@media(max-height:850px){.chat-toolbar{min-height:58px}.chat-transcript{padding-top:14px;padding-bottom:10px}.chat-welcome{margin:0 auto}.chat-welcome-mark,.chat-eyebrow,.chat-welcome-sub{display:none}.chat-welcome h2{font-size:24px;line-height:1.3;margin:0 0 13px}.chat-starters{gap:8px}.chat-starters button{padding:9px 11px;min-height:53px;align-items:center}.chat-starters small{display:none}.chat-starters button>span{grid-row:auto}.chat-room{padding-bottom:12px}.chat-privacy{margin-top:5px}.chat-meta{margin-top:6px}}
@media(max-width:720px){.chat-page .tool-title h1{font-size:22px}.chat-page .tool-hero{padding-top:8px;padding-bottom:8px}.chat-room{height:var(--chat-room-height,clamp(360px,calc(100svh - 230px),820px))}.chat-welcome h2{font-size:22px}.chat-starters b{font-size:14px}.chat-sponsored{padding:12px 14px}}
/* Public legacy helpers may arrive asynchronously. They must never auto-place
   the sidebar/room into different rows or constrain the room to 232 pixels. */
.chat-workspace{grid-template-areas:"helper helper" "sidebar room" "sponsor sponsor" "guide guide"}
.chat-workspace>.chat-sidebar{grid-area:sidebar;min-width:0}.chat-workspace>.chat-room{grid-area:room;min-width:0}.chat-workspace>.chat-sponsored{grid-area:sponsor}.chat-workspace>.chat-guide{grid-area:guide}
.chat-workspace>:not(.chat-sidebar):not(.chat-room):not(.chat-sponsored):not(.chat-guide):not(dialog){grid-column:1/-1;min-width:0}
.chat-workspace>div.legacy-help:first-child{grid-area:helper;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px 16px;margin:0 0 12px;padding:8px 12px;font-size:14px;line-height:1.6;border:1px solid var(--chat-line);border-radius:10px;background:var(--chat-panel)}
.chat-workspace>section.legacy-help{margin:20px 0 0;padding:16px;background:var(--chat-panel);border:1px solid var(--chat-line);border-radius:12px;color:var(--chat-text)}
.chat-page .chat-workspace{max-width:1320px}.chat-workspace .chat-composer textarea{min-height:54px;max-height:190px}
.chat-workspace>.chat-sidebar{height:var(--chat-room-height);min-height:0;overflow:auto;align-self:start}
.chat-workspace>.chat-room{scroll-margin-top:88px}
@media(max-width:720px){.chat-workspace>.chat-sidebar{height:auto;overflow:visible}}