.ai-chat-page{display:flex;height:calc(100dvh - var(--ai-chat-top, 64px));min-height:420px;overflow:hidden}.ai-chat-sidebar{width:264px;flex:0 0 264px;display:flex;flex-direction:column;border-right:1px solid var(--line);min-height:0}.ai-chat-newchat{margin:.72rem;padding:.5rem .62rem;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);color:var(--text);font-size:.8rem;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:.4rem}.ai-chat-newchat:hover{border-color:var(--text)}.ai-chat-sessions{flex:1 1;overflow-y:auto;padding:0 .5rem .72rem;min-height:0;scrollbar-width:thin;scrollbar-color:var(--line) transparent}.ai-chat-sessions::-webkit-scrollbar{width:6px}.ai-chat-sessions::-webkit-scrollbar-track{background:transparent}.ai-chat-sessions::-webkit-scrollbar-thumb{background:var(--line);border-radius:3px}.ai-chat-sessions::-webkit-scrollbar-thumb:hover{background:var(--muted)}.ai-chat-session{display:flex;align-items:center;gap:.3rem;width:100%;padding:.5rem .56rem;border-radius:var(--r-sm);cursor:pointer;font-size:.78rem;line-height:1.35;color:var(--text);border:1px solid transparent;background:transparent;text-align:left}.ai-chat-session.active,.ai-chat-session:hover{background:var(--surface)}.ai-chat-session.active{border-color:var(--line);font-weight:600}.ai-chat-session-title{flex:1 1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ai-chat-session-del{flex:0 0 auto;border:0;background:transparent;cursor:pointer;color:var(--muted);padding:2px;border-radius:var(--r-sm);display:inline-flex}.ai-chat-session-del:hover{color:var(--text)}.ai-chat-sessions-empty{padding:.72rem;font-size:.74rem;color:var(--muted)}.ai-chat-main{flex:1 1;display:flex;flex-direction:column;min-width:0;min-height:0}#app-header:has(.ai-chat-mobilebar){display:flex;flex-direction:column}.ai-chat-mobilebar{display:none;order:9}.ai-chat-thread{flex:1 1}.ai-chat-column{width:100%;max-width:820px;margin:0 auto}.ai-chat-thread>.ai-chat-column{display:flex;flex-direction:column;gap:.58rem;flex:1 1}.ai-chat-quick{display:flex;flex-wrap:wrap;gap:.42rem;margin-top:.3rem}.ai-chat-bottom{flex:0 0 auto;padding:0 .86rem .72rem}.ai-chat-scrim{display:none}@media (max-width:760px){.ai-chat-mobilebar{display:flex;align-items:center;gap:.3rem;height:36px;padding:0 .56rem}.ai-chat-mobilebar-title{flex:1 1;min-width:0;text-align:center;font-size:.76rem;font-weight:400;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ai-chat-sidebar{position:fixed;z-index:70;top:var(--ai-chat-top,64px);bottom:0;left:0;width:78vw;max-width:320px;transform:translateX(-100%);transition:transform .2s ease;background:var(--bg)}.ai-chat-sidebar.open{transform:translateX(0)}.ai-chat-scrim{display:block;position:fixed;inset:0;z-index:69;background:color-mix(in srgb,var(--text) 24%,transparent)}.ai-chat-bottom{padding:0 .56rem .56rem}}