/* 页面只表达服务器事实；预览、草稿与明确引用具有独立的视觉位置。 */
:root{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC",sans-serif;color:#29332d;background:#f4f5f1;font-size:14px;line-height:1.6;--green:#3f5848;--muted:#7a827b;--line:#e0e4dd;--sidebar:238px}*{box-sizing:border-box}body{margin:0}button,a,textarea{-webkit-tap-highlight-color:transparent}button,.button{font:inherit;font-size:12px;line-height:1.5;border:1px solid #d9dfd5;border-radius:8px;background:#fff;color:#364d3d;padding:9px 13px;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:7px}button:hover,.button:hover{background:#edf1e9;border-color:#c4cec0}button:disabled{opacity:.45;cursor:not-allowed}.primary{background:var(--green);color:#fff;border-color:var(--green);font-weight:550}.primary:hover{background:#304635}.primary span{font-size:19px;line-height:1}.quiet{background:transparent;border-color:transparent}.muted{color:var(--muted);font-size:12px}.eyebrow{font-size:9px;letter-spacing:2px;color:#8a9488}h1,h2,h3,p{margin-top:0}h1{font-size:17px;font-weight:550;margin:3px 0 0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}h2{font-size:16px;font-weight:550;margin:3px 0}a{color:var(--green)}.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}:focus-visible{outline:2px solid #7c9870;outline-offset:3px}[hidden]{display:none!important}
/* 桌面会话导航。窄屏使用紧凑顶部导航，不挤压聊天或预览。 */
.sidebar{width:var(--sidebar);position:fixed;inset:0 auto 0 0;background:#eceee7;border-right:1px solid var(--line);padding:28px 19px 21px;display:flex;flex-direction:column;z-index:2}.brand{display:flex;gap:6px;align-items:center;color:#344537;font-size:20px;letter-spacing:-.6px;text-decoration:none;font-weight:650}.brand>span:last-child{font-weight:400}.brand-icon{background:var(--green);color:#fff;border-radius:9px;width:31px;height:31px;display:inline-flex;align-items:center;justify-content:center;font-size:18px;margin-right:3px}.new-button{margin-top:31px;width:100%;justify-content:flex-start;background:transparent;border-color:#cdd6c8;padding:11px 13px}.nav-label{font-size:10px;color:#8a9287;letter-spacing:1px;margin:28px 10px 8px}.sidebar nav{overflow:auto;flex:1;min-height:0}.sidebar nav button{display:block;width:100%;text-align:left;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding:11px 12px;margin:3px 0;border:0;background:transparent;color:#6b766b}.sidebar nav button.active{background:#dfe5d8;color:#33482e}.sidebar footer{font-size:11px;color:#65715f;line-height:1.8;margin:20px 8px 0}.sidebar footer>span:last-child{color:#949d90}.status-dot{display:inline-block;width:5px;height:5px;background:#729567;border-radius:50%;vertical-align:middle;margin-right:5px}
main{margin-left:var(--sidebar);height:100dvh;display:flex;flex-direction:column;min-width:0}.workspace-header{padding:19px 29px 17px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:79px}.header-title{min-width:0}.connection{font-size:10px;color:#819077;white-space:nowrap}.connection::before{content:"";display:inline-block;background:currentColor;width:5px;height:5px;border-radius:50%;vertical-align:middle;margin-right:6px}#notice{font-size:12px;background:#f8efd9;border:1px solid #ecdcb5;color:#80652e;padding:10px 16px;margin:12px 24px 0;border-radius:8px;white-space:pre-wrap}#notice.error{background:#fbebe6;border-color:#eac9bf;color:#98583f}
/* 首页聊天入口，未确认成功前保持用户输入与提交身份。 */
.home{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:30px 34px 80px}.home-mark{font-size:54px;line-height:1.3;color:#5a7560;margin-bottom:20px}.home h2{font-size:34px;font-weight:500;letter-spacing:-1px;margin:14px 0}.home-description{font-size:14px;line-height:1.9;text-align:center;color:#8b9387;margin:0 0 28px}.home-composer{width:min(640px,100%);box-shadow:0 10px 42px #354b3508}.home-hint{font-size:11px;color:#9ca395;margin-top:19px;text-align:center}.composer{background:#fff;border:1px solid #d7ded1;border-radius:14px;padding:14px 16px 12px}.composer:focus-within{border-color:#92a788;box-shadow:0 0 0 3px #58724a08}textarea{font:inherit;font-size:13px;line-height:1.7;border:0;background:transparent;width:100%;min-height:61px;max-height:210px;resize:vertical;color:#3d483d;padding:0;display:block}textarea::placeholder{color:#a0a79b}textarea:focus{outline:none}textarea:read-only{color:#8c9486}.home textarea{min-height:94px}.composer-footer{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-top:10px}.composer-footer>.muted{font-size:10px;line-height:1.6}.composer-footer>.primary{flex-shrink:0;min-width:68px}
/* 对话与画布为同一工作台的两个区域；生产状态不会改变用户的预览选择。 */
.workspace{min-height:0;flex:1;display:flex;flex-direction:column}.workspace-toolbar{padding:10px 26px;display:flex;gap:10px;align-items:center;border-bottom:1px solid var(--line);min-height:49px}.workspace-toolbar #budget{flex:1;font-size:10px}.badge{font-size:10px;border-radius:20px;padding:4px 9px;background:#e6ecdf;color:#647457;white-space:nowrap}.workspace-panes{display:grid;grid-template-columns:minmax(340px,45%) minmax(0,1fr);min-height:0;flex:1}.chat-pane{border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0;min-width:0;background:#fafbf8}.chat-scroll{overflow:auto;flex:1;min-height:0;padding:26px 22px 15px;scroll-behavior:smooth;overscroll-behavior:contain}.history-button{display:flex;margin:0 auto 25px;border-color:transparent;background:transparent;color:#8b9782;font-size:11px}.empty-chat{color:#9ca493;text-align:center;font-size:12px;margin-top:30px}.chat-input-area{padding:13px 19px 12px}.retention-note{font-size:9px;color:#a2a895;margin:9px 5px 0}.composer-modes{display:flex;gap:4px;padding:0 0 9px}.composer-modes button{border:0;background:transparent;padding:5px 9px;font-size:10px;color:#869078}.composer-modes button.active{background:#e7eddf;color:#435d3a}.question-context{font-size:11px;color:#6c7f61;padding:0 5px;margin-bottom:8px;white-space:pre-wrap;max-height:80px;overflow:auto}.input-reference{display:flex;align-items:center;justify-content:space-between;gap:10px;color:#546c43;background:#edf3e5;border-radius:6px;padding:5px 8px;font-size:11px;margin-bottom:11px}.input-reference button{padding:0 4px;border:0;background:transparent;color:inherit;font-size:16px}
/* 聊天正文来自公开消息投影；原始提议只在来源明确的证据区展示。 */
.message{margin-bottom:24px;min-width:0}.message-header{display:flex;align-items:center;gap:8px;color:#5e6e54;font-size:11px;margin-bottom:7px}.message-header time{font-size:9px;color:#b0b5aa;margin-left:auto}.message.user{padding-left:36px}.message.user .message-content{background:#eaf0e3;border:1px solid #dfe8d8;border-radius:12px 3px 12px 12px;padding:12px 15px;color:#3f5038}.message-content{font-size:13px;line-height:1.85;white-space:pre-wrap;overflow-wrap:anywhere}.message-reference{font-size:10px;margin-top:9px;padding:4px 8px;color:#6c805d;border-radius:6px;background:#eef3e8;border:0}.message-label{font-size:9px;color:#98a38c}.message-card{background:#fff;border:1px solid #e0e6d8;border-radius:11px;padding:14px}.message-card h3{font-size:12px;font-weight:550;margin:0 0 9px}.message-card p{font-size:12px;white-space:pre-wrap;margin:6px 0}.message-card ol{font-size:12px;color:#738168;padding-left:20px;margin:8px 0}.card-meta{display:flex;justify-content:space-between;gap:10px;align-items:center;font-size:10px;color:#929b87;margin-bottom:8px}.operation-facts{font-size:11px;color:#819075;margin-top:7px;line-height:1.8}.report-summary{font-size:11px;color:#6e7e60;background:#f3f6ee;border-radius:6px;padding:8px;margin-top:9px}.run-footer{font-size:10px;color:#929b89;border-top:1px solid #edf0e6;padding-top:9px;margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}.run-footer a{margin-left:auto;color:#748a5d}.evidence{font-size:10px;margin-top:11px;color:#8d9781}.evidence summary{cursor:pointer}.evidence pre{font-family:ui-monospace,SFMono-Regular,monospace;white-space:pre-wrap;overflow-wrap:anywhere;font-size:10px;max-height:260px;overflow:auto;background:#f4f6f0;padding:10px;border-radius:6px}.answer-warning{font-size:10px!important;color:#95a184;line-height:1.6!important}.result-version{margin-top:12px;width:100%;justify-content:space-between;font-size:11px;background:#f5f8ef}progress{display:block;width:100%;height:5px;accent-color:#6f8f58;border:0;border-radius:5px;overflow:hidden;margin:9px 0}progress::-webkit-progress-bar{background:#eef2e6}progress::-webkit-progress-value{background:#799462}
.model-pane{overflow:auto;padding:24px 26px 22px;min-width:0;background:#f4f5f1;overscroll-behavior:contain}.preview-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.preview-header h2{font-size:16px}.preview-header .button{font-size:10px}.preview-stage{position:relative;min-height:300px;height:clamp(285px,43vh,580px);border:1px solid #e4e9dc;border-radius:13px;background:radial-gradient(ellipse at 50% 44%,#e8eddf,#f4f6ef 75%);overflow:hidden}.preview-stage::after{content:"";pointer-events:none;position:absolute;inset:0;background-image:radial-gradient(#c7cfbb 1px,transparent 1px);background-size:20px 20px;opacity:.28;z-index:0}model-viewer{position:relative;width:100%;height:100%;z-index:1;background:transparent}#empty-model{height:100%;display:flex;align-items:center;justify-content:center;flex-direction:column;color:#9ba78b;font-size:11px;position:relative;z-index:1}#empty-model strong{font-size:13px;font-weight:400;margin:15px 0 6px}.placeholder-shape{font-size:60px;line-height:1;color:#c8d3bc}.preview-actions{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:14px 0 8px}.preview-actions button{font-size:11px}.preview-actions .muted{font-size:10px}#preview-origin{font-size:10px;line-height:1.7;margin-bottom:12px;overflow-wrap:anywhere}.report-details{font-size:11px;color:#788969;border-top:1px solid #e4e9dd;padding-top:11px}.report-details summary{cursor:pointer}.report-details .muted{font-size:10px}#report{display:grid;gap:6px;margin:10px 0}.check{border:1px solid #e4e9df;background:#f9fbf5;border-radius:6px;padding:8px;font-size:10px}.check strong{font-size:11px;font-weight:500;display:block}.check span{color:#8c987e;display:block;margin-top:3px}.check.failed{border-left:3px solid #b68365}.check.passed{border-left:3px solid #8b9e6f}.check.unverifiable{border-left:3px solid #b7a26c}.versions-panel{border-top:1px solid #dde4d4;margin-top:22px;padding-top:15px}.versions-panel>summary{font-size:12px;color:#637557;cursor:pointer;list-style:none;display:flex;gap:8px;align-items:center}.versions-panel>summary::before{content:"▸";font-size:10px;color:#93a180}.versions-panel[open]>summary::before{content:"▾"}.versions-panel>summary span{font-size:10px;background:#e4eadc;padding:0 6px;border-radius:4px}.version-card{display:flex;gap:10px;align-items:center;border:1px solid #e0e6d8;background:#f9fbf5;border-radius:9px;padding:11px;margin-top:9px}.version-card.selected{border-color:#96a985;background:#f4f8ec}.version-number{font-size:12px;color:#6e825a;background:#e8eedf;border-radius:6px;min-width:35px;height:35px;display:flex;align-items:center;justify-content:center;cursor:pointer;border:0;padding:0}.version-info{flex:1;min-width:0}.version-info strong{font-size:11px;font-weight:500;display:block}.version-info p{font-size:9px;color:#98a188;margin:2px 0 0}.version-actions{display:flex;gap:5px}.version-actions button,.version-actions a{font-size:9px;padding:4px 6px;background:transparent;border-color:transparent}.version-actions button:disabled{opacity:.35}.versions-panel>p{font-size:11px;margin-top:14px}.mobile-tabs{display:none}
/* 差异卡只呈现保存前的事实记录，不提供额外审批或发送入口。 */
.intent-review{border-style:dashed;background:#fbfcf8}.intent-review .muted{font-size:10px}.intent-diff{border-collapse:collapse;table-layout:fixed;width:100%;font-size:10px;margin:12px 0}.intent-diff th,.intent-diff td{border-bottom:1px solid #e6eadf;padding:7px 5px;text-align:left;vertical-align:top;overflow-wrap:anywhere;white-space:pre-wrap}.intent-diff th{font-weight:500;color:#68775d}.intent-diff th:first-child{width:24%}.intent-diff td:last-child{color:#435e38;background:#f1f6e9}.intent-inherited{font-size:10px!important;color:#75866b}
/* 小屏在对话与预览之间显式切换，两边状态都保留。 */
@media(min-width:1500px){.workspace-panes{grid-template-columns:minmax(390px,43%) minmax(0,1fr)}.chat-scroll{padding-left:36px;padding-right:36px}.chat-input-area{padding-left:29px;padding-right:29px}.model-pane{padding-left:40px;padding-right:40px}}
@media(max-width:1080px){:root{--sidebar:192px}.sidebar{padding:24px 13px}.workspace-header{padding-left:20px;padding-right:20px}.workspace-toolbar{padding-left:18px;padding-right:18px}.workspace-panes{grid-template-columns:minmax(305px,48%) minmax(0,1fr)}.chat-scroll{padding:22px 15px 12px}.chat-input-area{padding:11px 13px}.model-pane{padding:22px 16px}.workspace-toolbar .button{font-size:10px;padding:6px 8px}.preview-stage{min-height:255px}.version-actions{flex-direction:column;gap:1px}}
@media(max-width:800px){:root{--sidebar:176px}.mobile-tabs{display:flex;padding:8px 18px;gap:8px;border-bottom:1px solid var(--line)}.mobile-tabs button{flex:1;border:0;background:transparent;color:#89967b}.mobile-tabs button[aria-selected=true]{background:#e6eddd;color:#4f6940}.mobile-tabs span{font-size:9px;margin-left:4px}.workspace-panes{display:block;overflow:hidden}.workspace-panes[data-pane=chat] .model-pane,.workspace-panes[data-pane=model] .chat-pane{display:none}.chat-pane,.model-pane{height:100%;border:0}.chat-scroll{padding:23px}.chat-input-area{padding:13px 20px}.model-pane{padding:24px}.preview-stage{height:46vh;min-height:260px}.version-actions{flex-direction:row}.workspace-toolbar{gap:6px;flex-wrap:wrap}.workspace-toolbar #budget{flex-basis:40%;font-size:9px}.workspace-toolbar #export{margin-left:auto}.home{padding:25px 25px 50px}.home h2{font-size:28px}.home-description{font-size:12px}.home .composer-footer>.muted{font-size:9px}.workspace-toolbar button{padding:6px 8px;font-size:10px}}
@media(max-width:580px){main{margin:0;height:calc(100dvh - 104px)}.sidebar{position:relative;width:100%;height:104px;padding:12px 16px;display:grid;grid-template-columns:1fr auto;grid-template-rows:36px 34px;gap:10px;border-right:0;border-bottom:1px solid var(--line)}.brand{font-size:18px}.brand-icon{width:28px;height:28px;font-size:16px}.new-button{margin:0;width:auto;padding:7px 11px;font-size:10px}.nav-label,.sidebar footer{display:none}.sidebar nav{grid-column:1/-1;display:flex;gap:5px;overflow-x:auto;overflow-y:hidden}.sidebar nav button{width:auto;max-width:180px;flex-shrink:0;font-size:10px;padding:6px 10px;margin:0}.sidebar nav .muted{font-size:10px;margin:6px 0}.workspace-header{min-height:65px;padding:12px 17px}.workspace-header h1{font-size:14px}.eyebrow{font-size:8px}.connection{font-size:9px}.workspace-toolbar{padding:8px 14px}.workspace-toolbar #budget{flex-basis:50%}.mobile-tabs{padding:7px 14px}.home{padding:20px 19px 32px}.home h2{font-size:27px}.home-mark{font-size:43px;margin-bottom:14px}.home-description{margin-bottom:20px}.home-hint{font-size:10px}.chat-scroll{padding:20px 16px 10px}.chat-input-area{padding:10px 13px 9px}.composer{padding:12px 13px 10px;border-radius:12px}.composer textarea{font-size:12px;max-height:150px}.composer-footer{gap:8px}.composer-footer>.muted{font-size:9px}.message.user{padding-left:26px}.message-content{font-size:12px}.message{margin-bottom:21px}.model-pane{padding:20px 17px}#notice{margin:9px 13px 0;font-size:11px}.preview-stage{min-height:240px;height:39vh}.retention-note{font-size:8px}.report-details{font-size:10px}.desktop-break{display:none}}
@media(prefers-reduced-motion:reduce){.chat-scroll{scroll-behavior:auto}}