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/* AI 运营助手：按正式参考图组织为紧凑页头、单工具栏和两栏工作区。 */
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#aiTopStatus:before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
#aiTopStatus.is-offline{background:color-mix(in srgb,var(--muted) 10%,var(--paper));color:var(--muted)}
.ai-ops-shell{height:100%;min-width:0;display:grid;grid-template-rows:68px minmax(0,1fr);color:#1c2530;background:#f6f7f8}
.ai-ops-toolbar{min-width:0;display:grid;grid-template-columns:auto minmax(280px,1fr) auto;align-items:center;gap:28px;padding:0 32px;border-bottom:1px solid var(--line);background:var(--paper)}
.ai-ops-toolbar .ai-main-modes{align-self:stretch;display:flex;gap:31px;margin:0;padding:0;border:0;border-radius:0;background:transparent;box-shadow:none;overflow:visible}
.ai-ops-toolbar .ai-main-modes button{position:relative;padding:0 3px;color:var(--muted);font-size:13px;font-weight:800}
.ai-ops-toolbar .ai-main-modes button.is-active{color:#1c2530}
.ai-ops-toolbar .ai-main-modes button.is-active:after{right:0;bottom:0;left:0;height:3px;border-radius:3px 3px 0 0;background:#d79c2c}
.ai-scope-control{min-width:0;justify-self:center;display:flex;align-items:center;gap:7px;color:var(--muted);font-size:11px;font-weight:700}
.ai-scope-control select{width:min(430px,36vw);height:38px;padding:0 34px 0 12px;border-color:var(--line);border-radius:8px;background:var(--paper);color:#1c2530;font-size:11px;font-weight:700}
.ai-toolbar-actions{display:flex;align-items:center;gap:9px}
.ai-toolbar-actions button{min-height:38px;padding:0 15px;border-radius:8px;font-size:11px}
.ai-toolbar-actions .primary{background:#d79c2c;color:#fff;box-shadow:none}
.ai-ops-stage{min-width:0;min-height:0;overflow:hidden}
.ai-ops-stage.is-inspect{overflow:auto;padding:22px 28px 42px}
.ai-ops-stage.is-inspect>.ai-page>.ai-hero{display:none}
.ai-ops-stage.is-inspect>.ai-page{max-width:1500px;margin:0 auto}

.ai-chat-workspace{height:100%;min-height:0;display:grid;grid-template-columns:260px minmax(0,1fr);overflow:hidden;border:0;border-radius:0;background:var(--paper);box-shadow:none}
.ai-chat-sidebar{min-height:0;border-right:1px solid var(--line);background:#fafafa}
.ai-chat-sidebar-head{display:grid;gap:12px;padding:18px 16px 14px;border-bottom:1px solid var(--line)}
.ai-history-title{display:flex;align-items:center;justify-content:space-between;color:#1c2530}
.ai-history-title strong{font-size:13px}.ai-history-title span{min-width:22px;height:22px;display:grid;place-items:center;padding:0 6px;border-radius:11px;background:#eef0f2;color:var(--muted);font-size:9px;font-weight:800}
.ai-history-search{display:grid;grid-template-columns:minmax(0,1fr) 36px;gap:7px}
.ai-history-search input{height:37px;padding:0 11px;border-color:var(--line);border-radius:8px;background:var(--paper);font-size:10px}
.ai-history-search button{height:37px;padding:0;border:1px solid var(--line);border-radius:8px;background:var(--paper);color:var(--muted);font-size:14px}
.ai-history-search button.is-active{border-color:color-mix(in srgb,#d79c2c 42%,var(--line));color:#b77914;background:#fff9ef}
.ai-chat-list{gap:2px;padding:8px}
.ai-chat-list>button{gap:4px;padding:11px 12px;border:0;border-radius:8px;color:#1c2530}
.ai-chat-list>button:hover{background:#f3f1ec}
.ai-chat-list>button.is-active{border:0;background:#fff4df;box-shadow:inset 3px 0 #d79c2c}
.ai-chat-list strong{font-size:11px;font-weight:800}.ai-chat-list span{color:var(--muted);font-size:9px;font-weight:650}.ai-chat-list small{color:#9aa1a9;font-size:8px}
.ai-conversation-actions{display:flex;gap:5px;margin-top:auto;padding:11px 14px;border-top:1px solid var(--line)}
.ai-conversation-actions button{flex:1;padding:7px 8px;color:var(--muted);font-size:9px}
.ai-chat-main{min-height:0;background:#f7f8f9}
.ai-chat-scroll{min-height:0;flex:1;overflow:auto;scroll-behavior:smooth}
.ai-welcome{display:grid;justify-items:center;padding:30px 34px 25px;border-bottom:1px solid var(--line);background:var(--paper);text-align:center}
.ai-welcome-mark{width:42px;height:42px;display:grid;place-items:center;margin-bottom:10px;border-radius:11px;background:#fff5e2;color:#d79c2c}
.ai-welcome-mark svg{width:23px;height:23px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.ai-welcome h2{margin:0;color:#1c2530;font-size:20px;line-height:1.3}.ai-welcome>p{margin:6px 0 20px;color:var(--muted);font-size:10px}
.ai-quick-cards{width:min(760px,100%);display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.ai-quick-cards>button{min-width:0;display:grid;grid-template-columns:32px minmax(0,1fr) auto;align-items:center;gap:9px;padding:13px 12px;border:1px solid var(--line);border-radius:10px;background:var(--paper);color:#1c2530;text-align:left;transition:border-color .15s,background .15s}
.ai-quick-cards>button:hover{border-color:color-mix(in srgb,#d79c2c 48%,var(--line));background:#fffaf2}
.ai-quick-cards svg{width:31px;height:31px;padding:6px;border-radius:8px;background:#fff5e2;fill:none;stroke:#d79c2c;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.ai-quick-cards span{min-width:0;display:grid;gap:4px}.ai-quick-cards strong{overflow:hidden;font-size:10px;text-overflow:ellipsis;white-space:nowrap}.ai-quick-cards small{overflow:hidden;color:var(--muted);font-size:8px;text-overflow:ellipsis;white-space:nowrap}.ai-quick-cards b{color:#a8adb4;font-size:18px;font-weight:400}
.ai-empty-chat-note{margin:22px auto;padding:9px 14px;color:var(--muted);font-size:9px;text-align:center}
.ai-chat-empty-composer{display:flex;justify-content:center;padding:17px;border-top:1px solid var(--line);background:var(--paper)}
.ai-chat-thread{display:grid;align-content:start;gap:20px;padding:25px 36px 34px;background:#f7f8f9}
.ai-chat-message{max-width:min(760px,82%);gap:7px}
.ai-chat-message>header strong{font-size:10px}.ai-chat-message>header time{font-size:8px}
.ai-chat-bubble{padding:14px 17px;border-color:var(--line);border-radius:11px 11px 11px 3px;box-shadow:0 1px 2px rgba(20,31,43,.025)}
.ai-chat-message.is-user .ai-chat-bubble{border-color:#ead2a6;border-radius:11px 11px 3px 11px;background:#fff4df;box-shadow:none}
.ai-chat-message.is-failed .ai-chat-bubble{border-color:var(--line);background:var(--paper)}
.ai-answer-content,.ai-chat-bubble p{color:#1c2530;font-size:12px;line-height:1.75;overflow-wrap:anywhere}
.ai-chat-error-note{color:var(--muted)!important}
.ai-chat-message>footer{min-height:24px}.ai-chat-message>footer span{font-size:8px}.ai-message-tools{display:flex;align-items:center;gap:2px;margin-left:auto}.ai-message-tools button{margin:0!important;padding:4px 6px!important;color:var(--muted);font-size:8px!important}
.ai-chat-references{gap:6px;margin-top:2px}.ai-chat-references>b{font-size:9px}
.ai-chat-reference{padding:10px 12px;border-radius:9px;background:var(--paper)}
.ai-chat-reference span{color:#b77914}.ai-chat-reference strong{font-size:10px}.ai-chat-reference small{font-size:8px}.ai-chat-reference button{padding:6px 9px;font-size:8px}
.ai-action-proposals{display:grid;gap:8px;margin-top:4px}.ai-action-card{overflow:hidden;border:1px solid color-mix(in srgb,var(--gold) 42%,var(--line));border-radius:11px;background:color-mix(in srgb,var(--gold) 5%,var(--paper));box-shadow:0 1px 3px rgba(20,31,43,.04)}.ai-action-card>header{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 14px;border-bottom:1px solid color-mix(in srgb,var(--gold) 25%,var(--line))}.ai-action-card>header>div{display:grid;gap:3px}.ai-action-card>header span{color:#a86e13;font-size:9px;font-weight:800}.ai-action-card>header strong{font-size:13px}.ai-action-card>header em{padding:4px 8px;border-radius:12px;background:color-mix(in srgb,var(--gold) 12%,var(--paper));color:#9b6716;font-size:9px;font-style:normal;font-weight:800;white-space:nowrap}.ai-action-card dl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px 14px;margin:0;padding:13px 14px}.ai-action-card dl>div{min-width:0;display:grid;gap:3px}.ai-action-card dt{color:var(--muted);font-size:9px}.ai-action-card dd{margin:0;color:var(--text);font-size:11px;font-weight:750;overflow-wrap:anywhere}.ai-action-card>footer{display:flex;align-items:center;justify-content:flex-end;gap:8px;padding:0 14px 13px}.ai-action-card>footer button{padding:8px 13px;font-size:10px}.ai-action-card>footer span{margin-right:auto;color:var(--green);font-size:10px;font-weight:750}.ai-action-card.is-executed{border-color:color-mix(in srgb,var(--green) 35%,var(--line));background:color-mix(in srgb,var(--green) 5%,var(--paper))}.ai-action-card.is-executed>header{border-bottom-color:color-mix(in srgb,var(--green) 20%,var(--line))}.ai-action-card.is-executed>header em{background:color-mix(in srgb,var(--green) 12%,var(--paper));color:var(--green)}.ai-action-card.is-canceled,.ai-action-card.is-expired{border-color:var(--line);background:var(--bg);opacity:.82}.ai-action-card.is-canceled>header,.ai-action-card.is-expired>header{border-bottom-color:var(--line)}.ai-action-card.is-canceled>header em,.ai-action-card.is-expired>header em{background:var(--paper);color:var(--muted)}
.ai-chat-system{margin:0 auto;background:#eceff1}
.ai-chat-composer{position:sticky;bottom:0;z-index:2;gap:6px;padding:12px 30px 15px;border-top:1px solid var(--line);background:var(--paper)}
.ai-composer-box{position:relative;min-height:76px;border:1px solid #d9dde2;border-radius:13px;background:var(--paper);box-shadow:0 2px 9px rgba(20,31,43,.035)}
.ai-chat-composer textarea{width:100%;min-height:43px;max-height:130px;padding:13px 54px 5px 15px;border:0;background:transparent;font-size:11px;line-height:1.55;resize:none;box-shadow:none}
.ai-chat-composer textarea:focus{outline:0;box-shadow:none}.ai-chat-composer>small{color:#9aa1a9;font-size:8px;text-align:center}
.ai-composer-tools{display:flex;align-items:center;gap:8px;padding:0 54px 8px 10px}
.ai-composer-tools>span{padding:4px 8px;border-radius:10px;background:#f1f3f5;color:var(--muted);font-size:8px;font-weight:750}
.ai-attach-button,.ai-regenerate-button{padding:3px 6px!important;border:0;background:transparent;color:var(--muted);font-size:9px!important}.ai-attach-button{display:inline-flex;align-items:center;min-height:25px;padding:4px 9px!important;border:1px solid color-mix(in srgb,var(--gold) 32%,var(--line));border-radius:8px;background:color-mix(in srgb,var(--gold) 6%,var(--paper));color:#9a6713;font-size:9px!important;font-weight:850}.ai-attach-button:hover:not(:disabled){border-color:var(--gold);background:color-mix(in srgb,var(--gold) 11%,var(--paper))}.ai-attach-button:disabled{opacity:.65}
.ai-regenerate-button{margin-left:auto}
.ai-send-button{position:absolute;right:9px;bottom:10px;width:34px;height:34px;display:grid;place-items:center;padding:0!important;border-radius:9px;background:#172538;color:#fff}
.ai-send-button svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.ai-send-button.is-stop{width:auto;padding:0 9px!important;font-size:9px}
.ai-chat-readonly{margin:auto 24px 20px;background:#f4f5f6}

/* Final reference fidelity: compact structure with readable operational type. */
#appView:has(.main-content.ai-assistant-main) .topbar-copy h1{font-size:28px;line-height:1.05}
#appView:has(.main-content.ai-assistant-main) .topbar-copy p{font-size:13px}
#aiTopStatus{left:188px;min-height:27px;padding-inline:12px;border:1px solid color-mix(in srgb,var(--green) 18%,var(--line));font-size:13px}
.ai-ops-toolbar .ai-main-modes button{display:flex;align-items:center;gap:8px;font-size:16px}
.ai-toolbar-icon{width:19px;height:19px;flex:0 0 auto;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.ai-scope-control{gap:8px;font-size:13px}
.ai-scope-control select{height:40px;padding-left:13px;font-size:13px}
.ai-toolbar-actions button{min-height:40px;display:flex;align-items:center;gap:7px;padding-inline:16px;font-size:13px}
.ai-history-title strong{font-size:16px}
.ai-history-title span{min-width:24px;height:24px;padding-inline:7px;border-radius:12px;font-size:11px}
.ai-history-search input{height:39px;font-size:12px}
.ai-history-search button{height:39px;display:grid;place-items:center}
.ai-history-search .ai-toolbar-icon{width:17px;height:17px}
.ai-chat-list strong{font-size:13px}.ai-chat-list span{font-size:11px}.ai-chat-list small{font-size:10px}
.ai-conversation-actions button{font-size:11px}
.ai-welcome>p{font-size:13px}
.ai-quick-cards{width:min(860px,100%)}
.ai-quick-cards strong{font-size:13px}.ai-quick-cards small{font-size:10px}
.ai-chat-message{max-width:min(840px,82%)}
.ai-chat-message>header strong{font-size:12px}.ai-chat-message>header time{font-size:10px}
.ai-answer-content,.ai-chat-bubble p{font-size:14px;line-height:1.7}
.ai-chat-message>footer span{font-size:10px}.ai-message-tools button{font-size:10px!important}
.ai-chat-references>b{font-size:11px}.ai-chat-reference strong{font-size:12px}.ai-chat-reference small{font-size:10px}.ai-chat-reference button{font-size:10px}
.ai-chat-composer textarea{font-size:13px}
.ai-chat-composer>small{font-size:10px}
.ai-composer-tools>span,.ai-regenerate-button{font-size:10px!important}

@media(max-width:1200px){.ai-ops-toolbar{grid-template-columns:auto minmax(220px,1fr) auto;gap:16px;padding-inline:22px}.ai-scope-control>span{display:none}.ai-scope-control select{width:min(390px,34vw)}.ai-chat-workspace{grid-template-columns:240px minmax(0,1fr)}.ai-quick-cards{grid-template-columns:repeat(2,minmax(0,1fr));max-width:600px}}
@media(max-width:1024px){#aiTopStatus{left:154px}.ai-toolbar-actions button{padding-inline:11px}.ai-chat-thread{padding-inline:24px}.ai-welcome{padding-inline:24px}}
@media(max-width:860px){.main-content.ai-assistant-main{height:calc(100vh - 76px)}.ai-ops-shell{grid-template-rows:auto minmax(0,1fr)}.ai-ops-toolbar{grid-template-columns:1fr auto;grid-template-areas:"tabs actions" "scope scope";gap:0 10px;padding:0 16px 10px}.ai-ops-toolbar .ai-main-modes{grid-area:tabs;height:52px}.ai-scope-control{grid-area:scope;justify-self:stretch}.ai-scope-control select{width:100%}.ai-toolbar-actions{grid-area:actions}.ai-chat-workspace{position:relative;grid-template-columns:1fr}.ai-chat-sidebar{position:absolute;z-index:4;inset:0 auto 0 0;width:min(285px,84vw);display:none;border-right:1px solid var(--line);box-shadow:10px 0 25px rgba(18,31,47,.08)}.ai-chat-workspace.is-history-open .ai-chat-sidebar{display:flex}.ai-chat-main{min-height:0}.ai-welcome{padding-top:22px}.ai-chat-thread{padding:20px}.ai-chat-message{max-width:92%}.ai-ops-stage.is-inspect{padding:18px}}
@media(max-width:620px){.topbar-copy:has(#aiTopStatus){padding-right:0}#aiTopStatus{display:none}.ai-ops-toolbar{padding-inline:12px}.ai-ops-toolbar .ai-main-modes{gap:20px}.ai-ops-toolbar .ai-main-modes button{font-size:11px}.ai-toolbar-actions .secondary{padding-inline:10px}.ai-welcome{padding:20px 14px}.ai-welcome h2{font-size:18px}.ai-quick-cards{grid-template-columns:1fr 1fr;gap:8px}.ai-quick-cards>button{grid-template-columns:29px minmax(0,1fr);padding:10px}.ai-quick-cards>button>b{display:none}.ai-quick-cards svg{width:29px;height:29px}.ai-quick-cards small{display:none}.ai-chat-thread{padding:17px 13px}.ai-chat-message{max-width:96%}.ai-chat-composer{padding:10px 12px}.ai-answer-content,.ai-chat-bubble p{font-size:11px}.ai-chat-reference{grid-template-columns:1fr}.ai-chat-reference button{justify-self:start}.ai-action-card dl{grid-template-columns:1fr}.ai-action-card>header{align-items:flex-start}.ai-action-card>footer{display:grid;grid-template-columns:1fr 1fr}.ai-action-card>footer button{width:100%}.ai-action-card>footer span{grid-column:1 / -1}.ai-ops-stage.is-inspect{padding:12px}}
@media(max-width:400px){.ai-toolbar-actions .secondary{font-size:0}.ai-toolbar-actions .secondary:after{content:"历史";font-size:10px}.ai-quick-cards{grid-template-columns:1fr}.ai-welcome>p{max-width:290px}.ai-chat-message{max-width:100%}}

/* 窄屏仍保留独立的新建对话入口，只缩短文案。 */
.ai-new-conversation-short{display:none}
@media(max-width:860px){.ai-toolbar-actions .primary{display:flex}}
@media(max-width:620px){.ai-toolbar-actions{gap:6px}.ai-toolbar-actions .primary{padding-inline:9px}.ai-new-conversation-full{display:none}.ai-new-conversation-short{display:inline}}