#page:has(.assistant-workspace){height:calc(100dvh - 64px);min-height:540px;padding-bottom:20px;display:flex;flex-direction:column}
#page:has(.assistant-workspace)>.page-heading{flex:none;margin-bottom:20px}
#page:has(.assistant-workspace)>.page-heading h1{font-size:24px;line-height:32px;font-weight:700}
#page:has(.assistant-workspace)>.page-heading p{font-size:14px;line-height:20px;margin-top:4px}
.assistant-workspace.demo-chat{position:relative;display:grid;grid-template-columns:244px minmax(0,1fr);flex:1;min-height:0;height:auto;border:1px solid var(--line);border-radius:14px;background:var(--panel);overflow:hidden;box-shadow:0 1px 2px #0f172a08}
.assistant-workspace.history-collapsed{grid-template-columns:minmax(0,1fr)}
.assistant-workspace.history-collapsed .chat-sidebar{display:none}
.assistant-workspace .chat-sidebar{padding:16px 12px;display:flex;flex-direction:column;gap:12px;min-height:0;overflow:hidden;background:var(--soft);border-right:1px solid var(--line)}
.chat-history-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:0 4px;color:var(--muted)}
.chat-history-heading>span{display:flex;align-items:center;gap:8px;font-size:13px;line-height:20px;font-weight:500}
.chat-history-heading .icon{width:16px;height:16px}
.assistant-workspace .chat-create{width:100%;justify-content:center;min-height:36px;font-size:14px;line-height:20px;border-radius:8px}
.chat-history-search{display:flex;align-items:center;gap:8px;border:1px solid var(--line);background:var(--panel);border-radius:8px;padding:0 10px;flex:none}
.chat-history-search>.icon{color:var(--muted);width:15px;height:15px}
.chat-history-search input{min-width:0;min-height:34px;height:34px;font-size:12px;line-height:18px;border:0;padding:6px 0;background:transparent;box-shadow:none}
.chat-history-search:focus-within{border-color:var(--blue);box-shadow:0 0 0 2px color-mix(in srgb,var(--blue) 12%,transparent)}
.chat-history-list{flex:1;min-height:0;overflow:auto;scrollbar-width:thin}
.chat-session-group+ .chat-session-group{margin-top:16px}
.assistant-workspace .chat-session-group h3{font-size:11px;line-height:18px;font-weight:500;color:var(--muted);margin:0;padding:4px 10px 8px}
.assistant-workspace .chat-session{padding:0 6px 0 10px;margin-bottom:4px;min-height:40px;gap:4px;border-radius:8px;background:transparent;border:1px solid transparent}
.assistant-workspace .chat-session.active{background:var(--panel);border-color:var(--line);box-shadow:0 1px 2px #0f172a05}
.assistant-workspace .chat-session:hover{background:var(--hover)}
.chat-session-open{display:flex;align-items:center;gap:8px;min-height:40px;flex:1;min-width:0;padding:8px 0;text-align:left;background:none;border:0;color:var(--text);font-size:13px;line-height:20px}
.chat-session-open>.icon{width:15px;height:15px;color:var(--muted);flex:none}
.chat-session-open span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.chat-session-delete{width:26px;height:26px;opacity:0;flex:none;color:var(--muted)}
.chat-session-delete .icon{width:14px;height:14px}
.chat-session:hover .chat-session-delete,.chat-session:focus-within .chat-session-delete{opacity:1}
.chat-session-delete:hover{color:#dc2626}
.chat-sidebar-settings{flex:none;display:flex;flex-direction:column;gap:10px;padding:14px 4px 0;border-top:1px solid var(--line)}
.chat-sidebar-settings>label{display:flex;flex-direction:column;gap:5px;min-width:0}
.chat-sidebar-settings>label>span{color:var(--muted);font-size:11px;line-height:18px}
.assistant-workspace .chat-sidebar-settings select{height:35px;min-height:35px;width:100%;min-width:0;padding:6px 8px;font-size:12px;line-height:18px;border-radius:8px;background:var(--panel)}
.chat-history-footnote{flex:none;display:flex;align-items:flex-start;gap:8px;padding:3px 0 0;color:var(--muted);font-size:11px;line-height:18px}
.chat-history-footnote>.icon{width:15px;height:15px;margin-top:2px}
.chat-history-empty{padding:36px 8px;text-align:center;color:var(--muted);font-size:12px;line-height:20px}
.chat-history-empty>.icon{width:24px;height:24px;opacity:.65}
.chat-history-empty p{margin:10px 0 2px;color:var(--text)}
.chat-history-empty>span{font-size:11px}
.assistant-workspace .chat-main{min-height:0;min-width:0;background:var(--panel);display:flex;flex-direction:column}
.assistant-workspace .chat-toolbar{min-height:66px;padding:12px 20px;display:flex;flex-wrap:nowrap;align-items:center;gap:12px;border-bottom:1px solid var(--line);flex:none}
.chat-conversation-heading{display:flex;flex-direction:column;gap:2px;flex:1;min-width:0}
.chat-conversation-heading strong{font-size:14px;line-height:20px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chat-conversation-heading>span{font-size:11px;line-height:16px;color:var(--muted)}
.assistant-workspace .chat-toolbar>[aria-controls=chat-history]{border:1px solid var(--line);border-radius:7px;width:32px;height:32px;flex:none}
.assistant-workspace .chat-messages{min-height:0;max-height:none;overflow:auto;flex:1;padding:24px clamp(16px,3vw,40px);scrollbar-width:thin;overscroll-behavior:contain}
.assistant-workspace .chat-welcome{height:100%;min-height:0;max-width:660px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:8px 0;margin:0 auto;text-align:center}
.assistant-workspace .welcome-mark{width:44px;height:44px;border-radius:13px;background:color-mix(in srgb,var(--blue) 8%,var(--panel));color:var(--blue);margin:0 0 4px;flex:none}
.assistant-workspace .welcome-mark .icon{width:24px;height:24px}
.chat-welcome-caption{font-size:11px;line-height:16px;color:var(--muted)}
.assistant-workspace .chat-welcome h2{font-size:24px;line-height:32px;font-weight:600;letter-spacing:-.5px;margin:0}
.assistant-workspace .chat-welcome p{font-size:13px;line-height:22px;color:var(--muted);max-width:460px;margin:0}
.chat-starters{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;width:100%;margin-top:12px}
.chat-starter{display:flex;align-items:center;gap:10px;min-width:0;min-height:66px;padding:12px;border:1px solid var(--line);border-radius:10px;background:var(--panel);text-align:left;color:var(--text);transition:background .15s,border-color .15s}
.chat-starter:hover{background:var(--soft);border-color:color-mix(in srgb,var(--blue) 40%,var(--line))}
.chat-starter-icon{width:30px;height:30px;border-radius:8px;display:grid;place-items:center;background:var(--soft);color:var(--blue);flex:none}
.chat-starter-icon .icon{width:16px;height:16px}
.chat-starter>span:nth-child(2){display:flex;flex-direction:column;gap:3px;min-width:0;flex:1}
.chat-starter strong{font-size:13px;line-height:18px;font-weight:500}
.chat-starter small{font-size:11px;line-height:16px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chat-starter>.icon{width:14px;height:14px;color:var(--muted)}
.chat-config-hint{display:flex;align-items:center;gap:6px;margin-top:8px;font-size:12px;line-height:18px;color:var(--blue)}
.chat-config-hint .icon{width:14px;height:14px}
.assistant-workspace .chat-message{max-width:840px;gap:12px;margin:0 auto 28px}
.assistant-workspace .message-avatar{width:30px;height:30px;flex:none;border-radius:9px;color:var(--blue);background:var(--soft);font-size:12px}
.assistant-workspace .chat-message.user .message-avatar{background:var(--hover);color:var(--text)}
.assistant-workspace .message-author{display:flex;align-items:center;gap:12px;font-size:12px;line-height:20px;font-weight:500;color:var(--muted);margin:3px 0 8px}
.message-author time{font-size:10px;line-height:16px;font-weight:400}
.assistant-workspace .message-text{font-size:14px;line-height:25px;white-space:pre-wrap;overflow-wrap:anywhere;color:var(--text)}
.assistant-workspace .chat-message.user{flex-direction:row-reverse}
.assistant-workspace .chat-message.user .message-body{flex:0 1 auto;max-width:calc(100% - 42px);display:flex;flex-direction:column;align-items:flex-end}
.assistant-workspace .chat-message.user .message-author{justify-content:flex-end}
.assistant-workspace .chat-message.user .message-text{padding:10px 14px;border-radius:12px 0 12px 12px;background:var(--soft);border:1px solid var(--line);text-align:left;max-width:100%}
.assistant-workspace .chat-compose-region{flex:none;padding:0 clamp(16px,3vw,40px) 14px;background:var(--panel)}
.assistant-workspace .chat-input-area{max-width:840px;width:100%;margin:0 auto;padding:0;border:0}
.assistant-workspace .chat-input-box{padding:12px 14px;border:1px solid var(--line);border-radius:12px;box-shadow:0 2px 8px #0f172a05;transition:border-color .15s,box-shadow .15s}
.assistant-workspace .chat-input-box:focus-within{border-color:color-mix(in srgb,var(--blue) 60%,var(--line));box-shadow:0 0 0 3px color-mix(in srgb,var(--blue) 8%,transparent)}
.assistant-workspace .chat-input-box textarea{display:block;height:52px;min-height:52px;max-height:168px;overflow:auto;resize:none;padding:0;border:0;font-size:14px;line-height:24px;box-shadow:none;background:transparent}
.assistant-workspace .chat-input-box textarea:focus{border:0;outline:0;box-shadow:none;background:transparent}
.assistant-workspace .chat-input-box textarea:focus-visible{border:0;outline:0;box-shadow:none}
.assistant-workspace .chat-input-footer{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:10px;font-size:11px;line-height:18px}
.chat-compose-tools{display:flex;align-items:center;gap:8px;min-width:0;color:var(--muted)}
.chat-compose-tools .icon-btn{width:28px;height:28px}
.chat-submit-actions{display:flex;align-items:center;flex:none}
.assistant-workspace .chat-input-footer .btn{height:32px;min-height:32px;border-radius:8px;font-size:12px;line-height:18px;padding:6px 12px}
.chat-submit-actions>[hidden]{display:none!important}
.assistant-workspace .chat-disclaimer{font-size:10px;line-height:16px;color:var(--muted);margin:8px 0 0}
.chat-attachment-list{display:flex;flex-wrap:wrap;gap:6px}
.chat-attachment-list:not(:empty){margin-bottom:10px}
.chat-attachment-list .tag{max-width:100%;overflow-wrap:anywhere;padding:5px 8px;border:1px solid var(--line);border-radius:7px;display:inline-flex;align-items:center;gap:6px;background:var(--soft);font-size:11px}
.chat-generating-label{color:var(--muted);font-size:13px}
.chat-generating-dots{display:inline-block;margin-left:6px;letter-spacing:3px;color:var(--muted);animation:chat-thinking 1.2s ease-in-out infinite}
@keyframes chat-thinking{50%{opacity:.3}}
@media(max-height:800px) and (min-width:901px){.assistant-workspace .chat-messages{padding-top:16px;padding-bottom:16px}.assistant-workspace .chat-welcome{gap:6px}.chat-welcome-caption{display:none}.assistant-workspace .chat-welcome p{font-size:12px;line-height:20px}.chat-starters{margin-top:8px;gap:8px}.chat-starter{min-height:58px;padding:9px}.assistant-workspace .welcome-mark{width:36px;height:36px;margin-bottom:2px}.assistant-workspace .chat-welcome h2{font-size:22px;line-height:30px}}
@media(max-width:1100px){.assistant-workspace.demo-chat{grid-template-columns:216px minmax(0,1fr)}.assistant-workspace.history-collapsed{grid-template-columns:minmax(0,1fr)}.assistant-workspace .chat-toolbar{padding:12px;gap:8px}.chat-starter>.icon{display:none}.chat-keyboard-detail{display:none}}
@media(max-width:900px){.assistant-workspace.demo-chat{grid-template-columns:minmax(0,1fr)}.assistant-workspace .chat-sidebar{display:none}.assistant-workspace.history-open .chat-sidebar{display:flex;position:absolute;inset:66px auto 0 0;width:256px;max-width:calc(100% - 36px);z-index:5;box-shadow:6px 0 24px #0f172a18;background:var(--panel)}.assistant-workspace.history-open .chat-messages,.assistant-workspace.history-open .chat-compose-region{pointer-events:none;opacity:.45}.chat-session-delete{opacity:1}.assistant-workspace .chat-toolbar{flex-wrap:nowrap}.assistant-workspace .chat-welcome{justify-content:flex-start;padding:16px 0}.assistant-workspace .chat-welcome h2{font-size:22px;line-height:30px}.chat-starters{gap:8px}.chat-starter{min-height:62px;padding:10px}.assistant-workspace .chat-compose-region{padding:0 16px 12px}}
@media(max-width:560px){#page:has(.assistant-workspace){min-height:480px;padding:16px 12px 12px}#page:has(.assistant-workspace)>.page-heading{margin-bottom:12px}#page:has(.assistant-workspace)>.page-heading h1{font-size:20px;line-height:28px}#page:has(.assistant-workspace)>.page-heading p{display:none}.assistant-workspace .chat-messages{padding:16px 12px}.assistant-workspace .chat-compose-region{padding:0 12px 10px}.chat-starters{grid-template-columns:minmax(0,1fr)}.chat-starter{min-height:54px}.chat-starter-icon{width:28px;height:28px}.chat-starter small{font-size:11px}.chat-welcome-caption{display:none}.assistant-workspace .chat-welcome p{font-size:12px;line-height:20px}.assistant-workspace .chat-welcome{gap:6px}.assistant-workspace .chat-message{gap:8px}.assistant-workspace .message-avatar{width:26px;height:26px}.assistant-workspace .message-text{font-size:14px;line-height:24px}.chat-compose-tools>span{display:none}}
@media(prefers-reduced-motion:reduce){.chat-generating-dots{animation:none}}