.topbar-ops{display:flex;align-items:center;gap:12px}.chat-shell{display:flex;flex-direction:row;height:calc(100vh - 58px);max-width:1180px;margin:0 auto;background:var(--bg)}.chat-body{flex:1;display:flex;flex-direction:column;min-width:0}.chat-scroll{flex:1;overflow-y:auto;padding:20px 16px}.chat-inner{max-width:780px;margin:0 auto}.chat-sidenav{flex:0 0 260px;width:260px;border-left:1px solid var(--border);background:#fff;display:flex;flex-direction:column;overflow:hidden}.sidenav-head{padding:14px 16px;font-size:14px;font-weight:700;color:var(--primary-dark);border-bottom:1px solid var(--border);flex-shrink:0}.sidenav-section{padding:12px;border-bottom:1px solid #f7eef2}.sidenav-section-grow{flex:1;overflow-y:auto;border-bottom:none}.sidenav-title{font-size:12px;font-weight:700;color:var(--text-light);margin-bottom:8px}.sidenav-empty{font-size:12px;color:var(--text-light);text-align:center;padding:8px 0}.sidenav-steps{display:flex;flex-direction:column;gap:6px}.sidenav-stage{padding:8px 10px;background:var(--primary-light);color:var(--primary-dark);border-radius:8px;font-size:12px;font-weight:700;margin-bottom:8px}.sidenav-recommend{display:flex;flex-direction:column;gap:6px}.stage-step{display:flex;align-items:center;gap:6px;padding:6px 10px;border:1px solid var(--border);border-radius:8px;background:#fff;font-size:12px;cursor:pointer;transition:all .12s}.stage-step:hover{border-color:var(--primary);background:var(--primary-light)}.stage-step-label{color:var(--text-light);flex-shrink:0}.stage-step-value{flex:1;color:var(--text);font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.stage-step-edit{color:var(--primary);font-weight:700;flex-shrink:0}.step-item{display:flex;align-items:flex-start;gap:6px;font-size:12px;color:var(--text);line-height:1.5;padding:5px 8px;border-radius:8px;background:#fdf8fa}.step-item .step-ico{flex-shrink:0}.step-item.user .step-ico{color:var(--primary)}.step-clickable{cursor:pointer;transition:all .12s}.step-clickable:hover{background:var(--primary-light)}.step-back{margin-left:auto;color:var(--primary);font-weight:700;opacity:0;transition:opacity .12s}.step-clickable:hover .step-back{opacity:1}.step-item.tool .step-ico{color:var(--accent)}.step-item.result .step-ico{color:#2ecc71}.sidenav-head{position:relative}.new-chat-btn{position:absolute;right:12px;top:50%;transform:translateY(-50%);width:24px;height:24px;border:1px solid var(--primary);border-radius:50%;background:var(--primary);color:#fff;font-size:16px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center}.new-chat-btn:hover{filter:brightness(1.08)}.sidenav-sessions{display:flex;flex-direction:column;gap:4px;max-height:200px;overflow-y:auto}.session-item{display:flex;align-items:center;gap:6px;padding:7px 10px;border:1px solid transparent;border-radius:8px;cursor:pointer;font-size:12px;color:var(--text);transition:all .12s}.session-item:hover{background:#f6eef1}.session-item.on{background:var(--primary-light);border-color:var(--primary);color:var(--primary-dark);font-weight:600}.session-item .session-title{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.session-item .session-del{color:#e74c3c;font-weight:700;flex-shrink:0;cursor:pointer;padding:0 2px}.session-item .session-del:hover{transform:scale(1.2)}.sidenav-nav{display:flex;flex-direction:column;gap:4px}.nav-item{display:block;width:100%;text-align:left;padding:7px 10px;border:1px solid transparent;border-radius:8px;background:transparent;font-size:12px;color:var(--text);cursor:pointer;line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:all .12s}.nav-item:hover{background:#f6eef1}.nav-item.on{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary);font-weight:600}.nav-item .nav-role{color:var(--text-light);margin-right:4px}.msg{display:flex;margin-bottom:16px;animation:fadeIn .25s ease}.msg.ai{justify-content:flex-start}.msg.user{justify-content:flex-end}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}.bubble{max-width:78%;padding:12px 16px;border-radius:14px;font-size:14px;line-height:1.75;white-space:pre-wrap;word-break:break-word}.msg.ai .bubble{background:#fff;color:var(--text);border:1px solid var(--border);border-top-left-radius:4px;box-shadow:var(--shadow)}.msg.user .bubble{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;border-top-right-radius:4px}.bubble a{color:var(--primary-dark)}.bubble.md{white-space:normal}.bubble.md p{margin:5px 0}.bubble.md h3,.bubble.md h4,.bubble.md h5{margin:12px 0 6px;font-size:14px;color:var(--primary-dark);font-weight:700}.bubble.md ul,.bubble.md ol{margin:5px 0 5px 18px}.bubble.md li{margin:3px 0}.bubble.md strong{font-weight:700;color:var(--primary-dark)}.bubble.md code{background:#0000000f;padding:1px 6px;border-radius:4px;font-size:12px;font-family:Consolas,Courier New,monospace}.bubble.md blockquote{margin:6px 0;padding:6px 12px;border-left:3px solid var(--primary);background:var(--primary-light);border-radius:0 8px 8px 0;color:var(--text)}.quick-replies{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;white-space:normal}.quick-reply{border:1px solid var(--primary);background:#fff;color:var(--primary-dark);border-radius:18px;padding:7px 14px;font-size:13px;font-weight:600;cursor:pointer;transition:all .12s}.quick-reply:hover{background:var(--primary);color:#fff}.quick-reply:disabled{opacity:.5;cursor:not-allowed}.result-card{margin-top:12px;border:1px solid var(--border);border-radius:12px;background:#fdf8fa;overflow:hidden;white-space:normal}.result-head{padding:10px 14px;font-weight:700;font-size:14px;color:var(--primary-dark);background:var(--primary-light);border-bottom:1px solid var(--border)}.result-body{padding:12px 14px}.result-tabs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}.result-tab{border:1px solid var(--border);background:#fff;color:var(--text-light);border-radius:14px;padding:4px 12px;font-size:12px;cursor:pointer}.result-tab.on{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}.result-tab.err{color:#e74c3c;border-color:#f3b8c6}.article-preview-box{background:#fff;border:1px solid var(--border);border-radius:10px;padding:14px;max-height:55vh;overflow-y:auto;font-size:14px;line-height:1.85}.article-preview-box h1{font-size:20px;margin:8px 0 12px}.article-preview-box h2{font-size:17px;color:var(--primary-dark);margin:16px 0 8px;padding-left:10px;border-left:3px solid var(--primary)}.article-preview-box h3{font-size:15px;margin:12px 0 6px}.article-preview-box p{margin:8px 0}.article-preview-box ul,.article-preview-box ol{margin:8px 0 8px 20px}.article-preview-box li{margin:4px 0}.article-preview-box blockquote{margin:10px 0;padding:10px 14px;background:var(--primary-light);border-left:3px solid var(--primary);border-radius:0 8px 8px 0}.article-preview-box img{max-width:100%;border-radius:8px;margin:8px 0}.article-preview-box .tag{display:inline-block;background:var(--primary-light);color:var(--primary-dark);padding:1px 10px;border-radius:12px;font-size:12px;margin:2px 4px 2px 0}.article-preview-box .faq-item{margin:8px 0;padding:10px 14px;background:#fdf8fa;border:1px solid var(--border);border-radius:10px}.article-preview-box .faq-q{font-weight:700;color:var(--primary-dark)}.result-img{max-width:100%;max-height:60vh;border-radius:10px;display:block}.result-video{width:100%;max-height:60vh;border-radius:10px;display:block;background:#000}.grid-cells{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.grid-cells img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:6px;border:1px solid var(--border);cursor:zoom-in}.bg-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.bg-item{padding:12px 8px;text-align:center;border:1px solid var(--border);border-radius:8px;background:#fff;font-size:13px;cursor:pointer;transition:all .12s}.bg-item:hover{border-color:var(--primary);background:var(--primary-light);color:var(--primary-dark)}.result-prompt{margin-top:8px;font-size:12px;color:var(--text-light);line-height:1.6}.wx-preview{max-height:60vh;overflow-y:auto;background:#faf6f7;border-radius:8px;padding:12px}.wx-preview>section{max-width:560px;margin:0 auto}.product-info{font-size:13px;line-height:1.8}.product-info b{color:var(--primary-dark)}.product-imgs{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.product-imgs img{width:96px;height:96px;object-fit:cover;border-radius:8px;border:1px solid var(--border);cursor:zoom-in}.catalog-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:6px;max-height:40vh;overflow-y:auto}.catalog-item{position:relative;padding:7px 10px;border:1px solid var(--border);border-radius:8px;background:#fff;font-size:12px;line-height:1.4;cursor:pointer;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:all .12s}.catalog-item:hover{border-color:var(--primary);background:var(--primary-light)}.catalog-item b{color:var(--primary-dark);margin-right:4px}.catalog-item:after,.library-item:after{content:" ↗";color:var(--primary);font-weight:700;opacity:0;transition:opacity .12s}.catalog-item:hover:after,.library-item:hover:after{opacity:1}.library-list{display:flex;flex-direction:column;gap:6px;max-height:40vh;overflow-y:auto}.library-item{padding:8px 10px;border:1px solid var(--border);border-radius:8px;background:#fff;cursor:pointer;transition:all .12s}.library-item:hover{border-color:var(--primary);background:var(--primary-light)}.library-title{font-size:13px;font-weight:600;color:var(--text);display:flex;align-items:center;gap:6px;flex-wrap:wrap}.library-title .item-tag{font-size:11px;color:var(--primary);background:var(--primary-light);padding:1px 8px;border-radius:10px;font-weight:500}.library-content{font-size:12px;color:var(--text-light);margin-top:4px;line-height:1.6}.sb-list{display:grid;grid-template-columns:1fr 1fr;gap:10px}.sb-cell{border:1px solid var(--border);border-radius:10px;padding:10px;background:#fff}.sb-index{font-weight:700;color:var(--primary-dark);font-size:13px;margin-bottom:6px}.sb-cell label{font-size:11px;color:var(--text-light);display:block;margin:6px 0 2px}.sb-cell p{font-size:12px;line-height:1.6;margin:0}.storyboard-gen{margin-top:12px;padding:12px;background:#fdf5f8;border:1px dashed var(--accent);border-radius:10px}.storyboard-gen-bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.storyboard-gen-bar .ratio-select{width:120px}.storyboard-gen-result{margin-top:10px}.storyboard-gen-result img{max-width:100%;border-radius:8px}.result-ops{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}.loading{display:inline-flex;align-items:center;gap:8px;color:var(--text-light);font-size:13px}.loading:before{content:"⏳"}.loading-hint{display:block;margin-top:4px;font-size:12px;color:var(--text-light);opacity:.8}.progress-track{width:100%;height:6px;margin-top:8px;background:#f0e4e8;border-radius:3px;overflow:hidden}.progress-bar{width:40%;height:100%;border-radius:3px;background:linear-gradient(90deg,var(--primary),var(--accent));animation:progress-slide 1.2s ease-in-out infinite}@keyframes progress-slide{0%{transform:translate(-100%)}to{transform:translate(250%)}}.chat-input-bar{display:flex;gap:10px;align-items:flex-end;padding:12px 16px 16px;border-top:1px solid var(--border);background:#fff}.attach-btn{flex:0 0 auto;width:42px;height:42px;border:1px solid var(--border);border-radius:12px;background:#fff;font-size:18px;cursor:pointer;transition:all .12s}.attach-btn:hover{border-color:var(--primary);background:var(--primary-light)}.chat-input-main{flex:1;display:flex;flex-direction:column;gap:6px;min-width:0}.attach-preview{display:flex;flex-wrap:wrap;gap:6px}.attach-preview:empty{display:none}.attach-chip{display:inline-flex;align-items:center;gap:6px;max-width:220px;padding:4px 8px;border:1px solid var(--border);border-radius:8px;background:#fdf8fa;font-size:12px;color:var(--text)}.attach-chip img{width:28px;height:28px;object-fit:cover;border-radius:4px}.attach-chip .attach-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:120px}.attach-chip .attach-del{cursor:pointer;color:#e74c3c;font-weight:700;flex-shrink:0}.chat-input-bar textarea{flex:none;height:42px;min-height:42px;max-height:120px;padding:10px 14px;border:1px solid var(--border);border-radius:12px;font-size:14px;font-family:inherit;resize:none;line-height:1.4;width:100%;overflow-y:auto}.chat-input-bar textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}.chat-input-bar .btn,.chat-input-bar .btn.primary{flex:0 0 auto;padding:11px 22px;white-space:nowrap}.img-viewer{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000d1;display:flex;align-items:center;justify-content:center;z-index:100}.img-viewer img{max-width:90vw;max-height:88vh;border-radius:8px;box-shadow:0 8px 40px #00000080}.img-viewer-close{position:absolute;top:20px;right:24px;width:42px;height:42px;border:none;border-radius:50%;background:#fff;color:#333;font-size:26px;line-height:1;cursor:pointer}.img-viewer-close:hover{background:#f0dce6}.result-img,.product-imgs img,.wx-preview img{cursor:zoom-in}@media(max-width:900px){.chat-sidenav{display:none}}@media(max-width:600px){.chat-shell{height:calc(100vh - 90px)}.chat-input-bar{padding:8px 10px 10px;gap:8px}.chat-input-bar textarea{height:40px;min-height:40px;font-size:16px;padding:9px 12px}.attach-btn{width:38px;height:38px}.chat-input-bar .btn,.chat-input-bar .btn.primary{padding:9px 14px;font-size:14px}}@media(max-width:700px){.bubble{max-width:92%}.sb-list{grid-template-columns:1fr}.chat-inner{max-width:100%}}