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10px;font-size:12px;cursor:pointer;color:var(--text-secondary);transition:var(--transition)}.kb-manage-members-btn:hover{background:var(--primary-light);color:var(--primary)}.kb-members-panel{margin-top:16px;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);padding:16px}.kb-members-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.kb-members-header h3{font-size:14px;font-weight:600;margin:0}.kb-members-close{background:none;border:none;font-size:16px;cursor:pointer;color:var(--text-muted);padding:2px 6px;border-radius:var(--radius-xs)}.kb-members-close:hover{color:var(--text-primary);background:#f3f4f6}.kb-members-add{display:flex;gap:8px;margin-bottom:12px}.kb-member-input{flex:1;padding:7px 10px;border:1px solid var(--border);border-radius:var(--radius-xs);font-size:13px;outline:none}.kb-member-input:focus{border-color:var(--primary)}.kb-member-role-select{padding:7px 8px;border:1px solid var(--border);border-radius:var(--radius-xs);font-size:12px;outline:none;background:#fff}.kb-member-add-btn{background:var(--primary);color:#fff;border:none;border-radius:var(--radius-xs);padding:7px 14px;font-size:12px;font-weight:500;cursor:pointer}.kb-member-add-btn:hover{background:var(--primary-hover)}.kb-members-list{display:flex;flex-direction:column;gap:4px}.kb-member-item{display:flex;align-items:center;justify-content:space-between;padding:6px 10px;background:#f9fafb;border-radius:var(--radius-xs);font-size:13px}.kb-member-id{color:var(--text-primary);font-weight:500}.kb-member-role{color:var(--text-muted);font-size:12px}.org-panel{padding:0}.org-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.org-section-title{font-size:16px;font-weight:600;color:var(--text-primary);margin:0}.org-create-btn{background:var(--primary);color:#fff;border:none;border-radius:var(--radius-xs);padding:7px 16px;font-size:13px;font-weight:500;cursor:pointer;transition:var(--transition)}.org-create-btn:hover{background:var(--primary-hover)}.org-desc{font-size:13px;color:var(--text-muted);line-height:1.6;margin-bottom:16px;padding:10px 12px;background:#f9fafb;border-radius:var(--radius-sm);border:1px solid var(--border-light)}.org-list{display:flex;flex-direction:column;gap:6px;margin-bottom:20px}.org-item{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition)}.org-item:hover{border-color:var(--primary);background:var(--primary-light)}.org-item.active{border-color:var(--primary);background:var(--primary-light);box-shadow:0 0 0 2px #4d6bfe1a}.org-item-icon{font-size:20px;flex-shrink:0}.org-item-info{flex:1;min-width:0}.org-item-name{font-size:13px;font-weight:500;color:var(--text-primary)}.org-item-meta{font-size:11px;color:var(--text-muted)}.org-item-kb-count{color:var(--primary);font-weight:500}.org-item-active-badge{font-size:10px;font-weight:600;padding:1px 6px;border-radius:8px;color:var(--primary);background:color-mix(in srgb,var(--primary) 12%,transparent);border:1px solid color-mix(in srgb,var(--primary) 30%,transparent);white-space:nowrap;flex-shrink:0}.org-empty-hint{color:var(--text-muted);font-size:13px;text-align:center;padding:24px}.org-actions{background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);padding:16px}.org-actions .org-section-title{font-size:14px;margin-bottom:10px}.org-action-btn{display:inline-block;padding:8px 16px;margin-right:8px;margin-bottom:6px;background:#f9fafb;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:13px;cursor:pointer;color:var(--text-secondary);transition:var(--transition)}.org-action-btn:hover{background:var(--primary-light);border-color:var(--primary);color:var(--primary)}.org-personal-hint{margin:0;font-size:12px;color:var(--text-muted);line-height:1.7;padding:6px 0}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .15s ease}.modal-content{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-lg);width:90%;max-width:480px;max-height:70vh;display:flex;flex-direction:column;animation:slideUp .2s ease}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}.modal-header h3{font-size:15px;font-weight:600;margin:0}.modal-close{background:none;border:none;font-size:18px;cursor:pointer;color:var(--text-muted);padding:2px 6px;border-radius:var(--radius-xs)}.modal-close:hover{color:var(--text-primary);background:#f3f4f6}.modal-body{padding:16px 20px;overflow-y:auto}.member-item{display:flex;align-items:center;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--border-light);font-size:13px}.member-item:last-child{border-bottom:none}.member-info{display:flex;flex-direction:column;gap:2px}.member-id{font-weight:500;color:var(--text-primary)}.member-role{font-size:11px;color:var(--text-muted)}.member-remove{background:none;border:1px solid #FCA5A5;color:#dc2626;border-radius:var(--radius-xs);padding:3px 10px;font-size:11px;cursor:pointer}.member-remove:hover{background:#fef2f2}.empty-hint{color:var(--text-muted);font-size:13px;text-align:center;padding:20px}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(12px);opacity:0}to{transform:translateY(0);opacity:1}}:root{--primary: #4f67f5;--primary-hover: #3f58ee;--primary-light: #eef3ff;--sidebar-bg: #f7f8fc;--sidebar-hover: rgba(79, 103, 245, .06);--sidebar-active: rgba(79, 103, 245, .1);--bg: #ffffff;--surface: #ffffff;--surface-soft: #f8fafc;--border: #e7ebf3;--border-light: #eef1f6;--text-primary: #262b37;--text-secondary: #495061;--text-muted: #9aa2b1;--text-light: #b2b9c5;--shadow-xs: 0 1px 2px rgba(24, 31, 50, .04);--shadow-sm: 0 4px 12px rgba(37, 48, 75, .06);--shadow: 0 8px 24px rgba(37, 48, 75, .08);--radius-xs: 6px;--radius-sm: 10px;--radius: 14px;--radius-lg: 20px;--radius-xl: 28px;--sidebar-w: 300px}body{background:#fff;color:var(--text-primary);font-size:14px;letter-spacing:0}button,select,textarea,input{font:inherit}button{border:0}.sidebar{width:var(--sidebar-w);background:var(--sidebar-bg);border-right:1px solid #eceff5;color:var(--text-secondary);transition:width .22s ease,opacity .18s ease,border-color .18s ease;overflow:hidden}.sidebar.collapsed{width:0;min-width:0;opacity:0;border-right-color:transparent;pointer-events:none}.sidebar-logo{height:64px;padding:0 16px;border-bottom:0;justify-content:space-between}.sidebar-logo h1{color:var(--primary);font-size:21px;font-weight:700;gap:8px}.logo-icon{width:28px;height:28px;background:transparent;border-radius:0;color:var(--primary);box-shadow:none}.sidebar-tools{display:flex;align-items:center;gap:8px}.icon-btn{width:32px;height:32px;border-radius:8px;color:#8d95a7;background:transparent;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--transition)}.icon-btn svg,.new-chat-btn svg,.tool-chip svg,.attach-btn svg,.send-btn svg{width:16px;height:16px}.icon-btn:hover{background:#eceff5;color:#6d7688}.icon-btn:active{transform:scale(.96)}.sidebar-expand-btn{position:fixed;top:14px;left:14px;z-index:1100;width:36px;height:36px;border-radius:10px;background:#fffffff2;color:#647084;border:1px solid #e3e8f1;box-shadow:0 4px 16px #1f2c471a;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background .15s ease,color .15s ease,transform .15s ease,box-shadow .15s ease}.sidebar-expand-btn svg{width:18px;height:18px}.sidebar-expand-btn:hover{background:#fff;color:var(--primary);box-shadow:0 6px 20px #4f67f524}.sidebar-expand-btn:active{transform:scale(.96)}.new-chat-btn{height:46px;justify-content:center;gap:8px;background:#fff;border:1px solid #e8ecf3;border-radius:23px;color:#2c3342;font-size:14px;font-weight:500;box-shadow:0 1px 4px #141c290a}.new-chat-btn:hover{background:#fff;color:#1f2530;border-color:#d0d8e8;box-shadow:0 2px 8px #141c2912}.session-item{min-height:40px;height:40px;padding:0 10px;border-radius:10px;color:#555d6e;font-size:14px;gap:8px;margin-bottom:1px}.session-item:hover{background:var(--sidebar-hover);color:#3b4252}.session-item.active 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#1f293708;transition:border-color .16s ease,box-shadow .16s ease,background .16s ease}.model-select-trigger:hover,.model-select.open .model-select-trigger{border-color:#cddaff;box-shadow:0 4px 14px #4f67f51a}.model-select-trigger svg{width:16px;height:16px;color:#687386;transition:transform .16s ease}.model-select.open .model-select-trigger svg{transform:rotate(180deg)}.model-dot{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 3px #edf3ff}.model-menu{position:absolute;left:0;right:0;bottom:calc(100% + 6px);z-index:30;padding:6px;border:1px solid #e4e9f2;border-radius:14px;background:#fffffffa;box-shadow:0 12px 32px #1f2c4724;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);animation:menuPop .14s ease}@keyframes menuPop{0%{opacity:0;transform:translateY(4px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.model-option{width:100%;min-height:50px;padding:8px 30px 8px 12px;border-radius:10px;background:transparent;color:#303744;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:2px;cursor:pointer;position:relative;text-align:left;transition:background .14s ease,color .14s ease}.model-option:hover{background:#f5f8ff}.model-option.active{background:#edf3ff;color:var(--primary)}.model-option-main{font-size:14px;font-weight:600}.model-option-desc{font-size:12px;color:#87909f}.model-option.active .model-option-desc{color:#6078e8}.model-option svg{position:absolute;right:10px;top:50%;width:16px;height:16px;transform:translateY(-50%)}.main{background:#fff;position:relative;transition:padding-left .22s ease}.main.sidebar-collapsed .topbar{padding-left:64px}.main.sidebar-collapsed .tabs{left:64px}.topbar{height:54px;border-bottom:0;padding:0 24px 0 20px}.topbar-title{font-size:15px;color:#2c3140;font-weight:500}.topbar-btn{height:34px;padding:0 14px;border:1px solid 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