*{box-sizing:border-box}html,body,#root{height:100%;margin:0;padding:0}body{color:#111827;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#f6f7fb;font-family:Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei UI,Noto Sans SC,sans-serif}button,textarea,input,select{font-family:inherit}button{transition:background-color .18s,border-color .18s,color .18s,box-shadow .18s}.app-shell{background:#f6f7fb;width:100%;height:100vh;display:flex;overflow:hidden}.sidebar{background:#fff;border-right:1px solid #e6e9f0;flex-direction:column;flex:0 0 252px;gap:10px;width:252px;padding:12px;transition:all .2s;display:flex;overflow-y:auto}.sidebar.collapsed{flex-basis:78px;width:78px}.sidebar-head{border-bottom:1px solid #eef2f7;justify-content:space-between;align-items:flex-start;gap:8px;padding-bottom:10px;display:flex}.brand-wrap{min-width:0}.brand-title{letter-spacing:.01em;font-size:20px;font-weight:700;line-height:1.16}.brand-subtitle{color:#707b8d;margin-top:4px;font-size:12px}.sidebar-toggle{color:#3b4352;cursor:pointer;background:#fff;border:1px solid #d7dce5;border-radius:10px;width:32px;height:32px}.sidebar-group-title{color:#6f7887;padding-top:2px;font-size:12px;font-weight:700}.menu-list{flex-direction:column;gap:10px;display:flex}.menu-btn{text-align:left;cursor:pointer;background:#fafbfe;border:1px solid #e6e9f0;border-radius:16px;padding:12px 14px}.menu-btn:hover{background:#f4f7fc}.menu-btn.active{background:#edf3ff;border-color:#c7d8fb}.menu-btn-top{justify-content:space-between;align-items:center;gap:8px;display:flex}.menu-btn-title{color:#0f172a;font-size:14px;font-weight:700}.menu-btn-status{color:#2563eb;white-space:nowrap;font-size:11px;font-weight:700}.menu-btn-desc{color:#6f7887;margin-top:4px;font-size:11px;line-height:1.55;display:block}.sidebar.collapsed .menu-btn{text-align:center;padding:12px 8px}.sidebar.collapsed .menu-btn-top{justify-content:center}.main-panel{flex-direction:column;flex:1;gap:10px;min-width:0;min-height:0;padding:10px;display:flex;overflow:hidden}.topbar{flex:none;justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.topbar-left{min-width:0}.page-title{font-size:20px;font-weight:700;line-height:1.14}.page-subtitle{color:#6f7887;margin-top:3px;font-size:12px}.topbar-right{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:8px;display:flex}.model-switcher{background:#fff;border:1px solid #e2e8f0;border-radius:999px;align-items:center;gap:6px;padding:4px;display:inline-flex}.model-chip{color:#4b5563;cursor:pointer;background:0 0;border:none;border-radius:999px;padding:8px 14px;font-size:12px;font-weight:700}.model-chip.active{color:#fff;background:#2563eb;box-shadow:0 2px 8px #2563eb2e}.api-tip{color:#6f7887;background:#fff;border:1px solid #e5e7eb;border-radius:999px;padding:8px 10px;font-size:11px}.clear-btn,.ghost-btn,.secondary-btn,.send-btn,.copy-mini-btn{cursor:pointer;border-radius:12px;font-weight:600}.clear-btn{color:#ef4444;background:#fff;border:1px solid #fecaca;padding:9px 12px}.ghost-btn{color:#374151;background:#fff;border:1px solid #dde3ec;padding:9px 12px}.secondary-btn{color:#3730a3;background:#eef2ff;border:none;padding:9px 12px}.send-btn{color:#fff;background:#2563eb;border:none;padding:10px 14px}.send-btn:disabled,.ghost-btn:disabled,.clear-btn:disabled,.secondary-btn:disabled{opacity:.6;cursor:not-allowed}.hidden-file-input{display:none}.workspace{flex-direction:column;flex:1;gap:10px;min-height:0;display:flex}.workspace-ppt{min-height:0}.result-panel{background:#fff;border:1px solid #e6e9f0;border-radius:18px;flex-direction:column;flex:1;min-height:0;display:flex;overflow:hidden}.result-toolbar{border-bottom:1px solid #eef2f7;flex:none;justify-content:space-between;align-items:center;gap:12px;padding:12px 14px;display:flex}.result-title{font-size:15px;font-weight:700}.result-desc{color:#707b8d;margin-top:2px;font-size:12px}.result-toolbar-actions{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.running-badge{color:#2563eb;background:#eff6ff;border:1px solid #bfdbfe;border-radius:999px;padding:5px 9px;font-size:11px;font-weight:700}.chat-panel{flex:1;min-height:0;padding:16px 18px;overflow-y:auto}.chat-thread{width:min(100%,1060px);margin:0 auto}.message-row{margin-bottom:18px;display:flex}.message-row.user{justify-content:flex-end}.message-row.assistant{justify-content:flex-start}.message-bubble{border-radius:18px;max-width:min(88%,960px);padding:12px 14px;line-height:1.72}.message-row.user .message-bubble{color:#fff;background:#3b82f6;box-shadow:0 4px 14px #3b82f624}.message-row.assistant .message-bubble{color:#111827;background:0 0;padding-left:0;padding-right:0}.message-header{justify-content:space-between;align-items:center;gap:10px;margin-bottom:8px;display:flex}.message-meta{align-items:center;gap:8px;min-width:0;display:inline-flex}.message-role{opacity:.9;font-size:11px;font-weight:700}.model-pill{border-radius:999px;align-items:center;padding:3px 8px;font-size:11px;font-weight:700;display:inline-flex}.model-pill.subtle{color:#4361b9;background:#eff4ff}.message-content{color:#17202e;font-size:16px}.user-text{white-space:pre-wrap;font-size:15px;line-height:1.68}.markdown-body{color:#17202e}.markdown-body>:first-child{margin-top:0}.markdown-body>:last-child{margin-bottom:0}.markdown-body p{margin:0 0 14px;line-height:1.82}.markdown-body h1,.markdown-body h2,.markdown-body h3,.markdown-body h4{letter-spacing:.01em;margin:20px 0 10px;line-height:1.35}.markdown-body h1{font-size:23px;font-weight:700}.markdown-body h2{font-size:20px;font-weight:700}.markdown-body h3{font-size:17px;font-weight:700}.markdown-body h4{font-size:15px;font-weight:700}.markdown-body ul,.markdown-body ol{margin:0 0 16px;padding-left:1.45em}.markdown-body li{margin:6px 0;line-height:1.78}.markdown-body strong{color:#0f172a;font-weight:800}.markdown-body blockquote{color:#334155;background:#f8fbff;border-left:3px solid #dbe6ff;border-radius:0 12px 12px 0;margin:0 0 16px;padding:10px 14px}.markdown-body code{background:#f3f4f6;border-radius:6px;padding:2px 6px;font-size:.92em}.markdown-body pre{color:#e5edf8;background:#0f172a;border-radius:14px;margin:0 0 16px;padding:12px 14px;overflow-x:auto}.markdown-body pre code{color:inherit;background:0 0;padding:0}.markdown-body hr{border:none;border-top:1px solid #e5e7eb;margin:18px 0}.markdown-body table{border-collapse:collapse;width:100%;margin:0 0 16px;font-size:14px}.markdown-body th,.markdown-body td{text-align:left;border:1px solid #e5e7eb;padding:8px 10px}.markdown-body th{background:#f8fafc;font-weight:700}.copy-mini-btn{color:#5b6676;background:#fff;border:1px solid #e0e5ee;padding:4px 8px;font-size:11px}.message-row.user .copy-mini-btn{color:#fff;background:#ffffff1f;border-color:#ffffff38}.dock-panel{background:#fff;border:1px solid #e6e9f0;border-radius:18px;flex:none;overflow:hidden}.dock-header{border-bottom:1px solid #eef2f7;justify-content:space-between;align-items:flex-start;gap:10px;padding:10px 12px;display:flex}.dock-title{font-size:15px;font-weight:700}.dock-desc{color:#707b8d;margin-top:2px;font-size:12px}.dock-header-actions{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.compact-actions{gap:6px}.dock-body{padding:12px}.news-dock-body{max-height:34vh;overflow-y:auto}.dock-footer{border-top:1px solid #eef2f7;padding:10px 12px 12px}.news-dock-footer{padding-top:10px}.full-width-btn{width:100%}.compact-send-btn{border-radius:13px;min-height:44px}.file-chip-list{flex-wrap:wrap;gap:8px;margin-bottom:8px;display:flex}.file-chip{color:#334155;background:#f8fafc;border:1px solid #dbe4f0;border-radius:999px;align-items:center;gap:6px;padding:6px 10px;font-size:12px;display:inline-flex}.file-chip button{color:#ef4444;cursor:pointer;background:0 0;border:none;padding:0;font-size:16px;line-height:1}.news-grid{grid-template-columns:1fr 1fr;gap:10px;display:grid}.field-block{flex-direction:column;gap:6px;display:flex}.field-block label{color:#374151;font-size:12px;font-weight:700}.field-block input,.field-block select,.field-block textarea{color:#111827;resize:none;background:#fff;border:1px solid #d6dbe4;border-radius:12px;outline:none;width:100%;padding:10px 12px;font-size:14px}.field-block input:focus,.field-block select:focus,.field-block textarea:focus{border-color:#93c5fd;box-shadow:0 0 0 3px #93c5fd2e}.compact-input-block textarea.compact-chat-textarea{min-height:96px;font-size:14px;line-height:1.7}.span-2{grid-column:1/-1}.tag-check-group{flex-wrap:wrap;gap:8px;display:flex}.tag-check-btn{color:#334155;cursor:pointer;background:#fff;border:1px solid #cfd7e6;border-radius:10px;padding:7px 12px;font-size:13px;font-weight:600;line-height:1.2}.tag-check-btn:hover{background:#f3f7ff;border-color:#b9c8ea}.tag-check-btn.active{color:#fff;background:#2563eb;border-color:#2563eb;box-shadow:0 3px 10px #2563eb38}.ppt-studio-shell{flex:1;min-height:0;display:flex}.ppt-studio-grid{grid-template-columns:290px minmax(0,1fr) 320px;gap:12px;width:100%;min-height:0;display:grid}.ppt-panel{background:#fff;border:1px solid #e6e9f0;border-radius:24px;flex-direction:column;min-height:0;display:flex;overflow:hidden}.ppt-panel-head{border-bottom:1px solid #eef2f7;justify-content:space-between;align-items:flex-start;gap:12px;padding:16px 18px;display:flex}.ppt-panel-title{font-size:16px;font-weight:700}.ppt-panel-desc{color:#6f7887;margin-top:4px;font-size:12px;line-height:1.6}.ppt-panel-body{flex:1;min-height:0;padding:14px 16px 16px;overflow:auto}.ppt-left-panel .ppt-panel-body,.ppt-right-panel .ppt-panel-body,.ppt-main-body{flex-direction:column;gap:14px;display:flex}.ppt-mini-actions{flex-wrap:wrap;gap:8px;display:flex}.ppt-upload-card{background:#f8fafc;border:1px dashed #ced7e8;border-radius:18px;padding:14px}.ppt-upload-title{font-size:14px;font-weight:700}.ppt-upload-desc{color:#6f7887;margin-top:6px;font-size:12px;line-height:1.6}.ppt-upload-actions{flex-wrap:wrap;gap:8px;margin-top:12px;display:flex}.ppt-block{flex-direction:column;gap:10px;display:flex}.ppt-block-title{font-size:14px;font-weight:700}.ppt-source-list,.ppt-evidence-list,.ppt-mode-list,.ppt-export-actions{flex-direction:column;gap:10px;display:flex}.ppt-source-card{border:1px solid #e7ebf3;border-radius:18px;justify-content:space-between;gap:10px;padding:12px;display:flex}.ppt-source-name{color:#1f2937;font-size:13px;font-weight:600}.ppt-source-type{color:#6f7887;margin-top:4px;font-size:11px}.ppt-source-status{color:#047857;white-space:nowrap;background:#ecfdf3;border-radius:999px;align-self:flex-start;padding:5px 8px;font-size:10px;font-weight:700}.ppt-evidence-card{color:#475569;background:#f8fafc;border-radius:16px;padding:12px;font-size:12px;line-height:1.7}.ppt-tabbar{background:#f1f5f9;border-radius:16px;gap:4px;padding:4px;display:inline-flex}.ppt-tab{color:#64748b;cursor:pointer;background:0 0;border:none;border-radius:12px;padding:8px 12px;font-size:13px;font-weight:600}.ppt-tab.active{color:#0f172a;background:#fff;box-shadow:0 1px 4px #0f172a14}.ppt-kpi-row{grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;display:grid}.ppt-kpi-card{background:#f8fafc;border:1px solid #e7ebf3;border-radius:18px;padding:12px}.ppt-kpi-label{color:#94a3b8;font-size:11px}.ppt-kpi-value{color:#0f172a;margin-top:6px;font-size:14px;font-weight:700}.ppt-slide-list{flex-direction:column;gap:12px;display:flex}.ppt-slide-card{background:#fff;border:1px solid #e6e9f0;border-radius:22px;align-items:flex-start;gap:14px;padding:16px;display:flex}.ppt-slide-card.featured{background:#f7faff;border-color:#c7d8fb}.ppt-slide-no{color:#475569;background:#eef2f7;border-radius:16px;flex:0 0 48px;justify-content:center;align-items:center;width:48px;height:48px;font-size:16px;font-weight:800;display:flex}.ppt-slide-no.featured{color:#fff;background:#2563eb}.ppt-slide-main{flex:1;min-width:0}.ppt-slide-title{color:#0f172a;font-size:16px;font-weight:700}.ppt-slide-takeaway{color:#475569;margin-top:6px;font-size:14px;line-height:1.7}.ppt-slide-tags{flex-wrap:wrap;gap:8px;margin-top:12px;display:flex}.ppt-tag{color:#475569;background:#eef2f7;border-radius:999px;align-items:center;padding:5px 10px;font-size:11px;font-weight:700;display:inline-flex}.ppt-tag.warn{color:#b45309;background:#fff7ed}.ppt-slide-actions{flex-direction:column;gap:8px;display:flex}.ppt-bottom-composer{background:#fff;border-top:1px solid #eef2f7;padding:14px 16px 16px}.ppt-composer-label{color:#6b7280;margin-bottom:8px;font-size:12px;font-weight:700}.ppt-composer-textarea{resize:none;border:1px solid #d6dbe4;border-radius:18px;outline:none;width:100%;min-height:92px;padding:12px 14px;font-size:14px;line-height:1.7}.ppt-composer-textarea:focus{border-color:#93c5fd;box-shadow:0 0 0 3px #93c5fd2e}.ppt-composer-footer{justify-content:space-between;align-items:center;gap:10px;margin-top:10px;display:flex}.ppt-composer-tip{color:#6f7887;font-size:12px;line-height:1.6}.ppt-mode-btn{text-align:left;color:#334155;background:#fff;border:1px solid #dde3ec;border-radius:16px;width:100%;padding:12px 14px;font-size:13px;font-weight:600}.ppt-mode-btn.active{color:#1d4ed8;background:#eef4ff;border-color:#c7d8fb}.ppt-settings-grid{grid-template-columns:1fr 1fr;gap:10px;display:grid}.ppt-status-card{color:#475569;background:#f8fafc;border-radius:18px;padding:14px;font-size:13px;line-height:1.7}.ppt-note-card{color:#6f7887;border:1px dashed #ced7e8;border-radius:18px;padding:14px;font-size:12px;line-height:1.7}.auth-shell,.auth-loading{background:#f4f7fb;justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.auth-card{background:#fff;border-radius:20px;width:100%;max-width:520px;padding:28px;box-shadow:0 10px 30px #00000014}.auth-title{margin-bottom:8px;font-size:24px;font-weight:700}.auth-desc{color:#5f6b7a;margin-bottom:16px;line-height:1.7}.auth-input{border:1px solid #d8dee8;border-radius:12px;width:100%;height:46px;margin-bottom:12px;padding:0 14px;font-size:15px}.auth-error{color:#c43636;margin-bottom:12px;font-size:14px}.auth-submit{color:#fff;cursor:pointer;background:#1d4f9c;border:none;border-radius:12px;width:100%;height:46px;font-size:15px;font-weight:600}.auth-loading{color:#425466;font-size:16px}.compact-chat-dock{border-radius:16px}.compact-composer-wrapper{flex-direction:column;gap:8px;padding:8px 12px 12px;display:flex}.compact-chat-topline{justify-content:space-between;align-items:center;gap:10px;min-height:32px;display:flex}.compact-chat-meta{color:#6b7280;white-space:nowrap;text-overflow:ellipsis;min-width:0;font-size:12px;font-weight:600;overflow:hidden}.compact-inline-actions{flex-wrap:wrap;gap:6px}.compact-inline-actions .secondary-btn,.compact-inline-actions .ghost-btn{border-radius:10px;padding:7px 10px;font-size:12px}.compact-chat-dock .file-chip-list{margin-bottom:0}.compact-input-block{gap:0}.compact-chat-textarea{color:#111827;resize:none;background:#fff;border:1px solid #d6dbe4;border-radius:14px;outline:none;width:100%;min-height:56px;max-height:168px;padding:12px 14px;font-size:14px;line-height:1.7;overflow-y:auto}.compact-chat-textarea:focus{border-color:#93c5fd;box-shadow:0 0 0 3px #93c5fd2e}.compact-submit-row{justify-content:space-between;align-items:center;gap:10px;display:flex}.compact-submit-tip{color:#6f7887;font-size:12px;line-height:1.5}.compact-send-btn.compact-send-inline{border-radius:13px;flex:none;min-width:220px;min-height:44px;padding:0 18px}@media (width<=1380px){.ppt-studio-grid{grid-template-columns:270px minmax(0,1fr) 300px}}@media (width<=1240px){.ppt-studio-grid{grid-template-columns:1fr;overflow-y:auto}.ppt-panel{min-height:auto}.ppt-kpi-row,.ppt-settings-grid{grid-template-columns:1fr 1fr}}@media (width<=1120px){.chat-thread{width:min(100%,920px)}.message-bubble{max-width:92%}}@media (width<=960px){.sidebar{flex-basis:86px;width:86px}.sidebar .brand-subtitle,.sidebar .sidebar-group-title,.sidebar .menu-btn-desc,.sidebar .menu-btn-status{display:none}.sidebar .menu-btn{text-align:center;padding:12px 8px}.sidebar .menu-btn-top{justify-content:center}.brand-title{font-size:18px}.news-grid,.ppt-settings-grid,.ppt-kpi-row{grid-template-columns:1fr}.span-2{grid-column:auto}.ppt-slide-card{flex-direction:column}.ppt-slide-actions{flex-flow:wrap;width:100%}}@media (width<=760px){.app-shell{flex-direction:column;height:auto;min-height:100vh;overflow:auto}.sidebar,.sidebar.collapsed{border-bottom:1px solid #e5e7eb;border-right:none;flex-basis:auto;width:100%}.sidebar-head{align-items:center}.main-panel{min-height:auto;overflow:visible}.workspace{min-height:auto}.result-panel{min-height:320px}.news-dock-body{max-height:none}.topbar{flex-direction:column}.topbar-right{justify-content:flex-start;width:100%}.chat-panel{padding:12px 14px}.chat-thread,.message-bubble{width:100%;max-width:100%}.message-row.user .message-bubble{max-width:92%}.markdown-body h1{font-size:21px}.markdown-body h2{font-size:18px}.compact-chat-topline,.compact-submit-row,.ppt-panel-head,.ppt-composer-footer{flex-direction:column;align-items:stretch}.compact-inline-actions{justify-content:flex-start}.compact-submit-tip{display:none}.compact-send-btn.compact-send-inline{width:100%;min-width:0}.ppt-tabbar{grid-template-columns:1fr 1fr;display:grid}}.ppt-simple-shell{flex:1;grid-template-columns:300px minmax(0,1fr);gap:12px;min-height:0;display:grid}.ppt-simple-left,.ppt-simple-center{min-height:0;display:flex}.ppt-simple-card{background:#fff;border:1px solid #e6e9f0;border-radius:20px;flex-direction:column;width:100%;min-height:0;display:flex;overflow:hidden}.ppt-simple-head{border-bottom:1px solid #eef2f7;justify-content:space-between;align-items:flex-start;gap:12px;padding:14px 16px;display:flex}.ppt-simple-title{color:#0f172a;font-size:16px;font-weight:700}.ppt-simple-desc{color:#6f7887;margin-top:4px;font-size:12px;line-height:1.6}.ppt-simple-actions{flex-wrap:wrap;gap:8px;display:flex}.ppt-simple-body{flex-direction:column;flex:1;gap:12px;min-height:0;padding:14px 16px 16px;display:flex;overflow:auto}.ppt-simple-main{flex-direction:column;flex:1;gap:14px;min-height:0;padding:16px;display:flex;overflow:auto}.ppt-simple-block{flex-direction:column;gap:10px;display:flex}.ppt-simple-block-title{color:#0f172a;font-size:14px;font-weight:700}.ppt-generate-box{background:#f8fafc;border:1px dashed #ced7e8;border-radius:18px;flex-direction:column;align-items:flex-start;gap:10px;padding:18px;display:flex}.ppt-generate-title{color:#0f172a;font-size:15px;font-weight:700}.ppt-generate-desc{color:#5b6676;max-width:760px;font-size:13px;line-height:1.7}.ppt-generate-btn{min-width:180px}.ppt-outline-box{background:#fff;border:1px solid #e7ebf3;border-radius:18px;overflow:hidden}.ppt-outline-head{border-bottom:1px solid #eef2f7;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;display:flex}.ppt-outline-meta{color:#6f7887;font-size:12px}.ppt-outline-list{flex-direction:column;display:flex}.ppt-outline-item{border-bottom:1px solid #eef2f7;gap:14px;padding:16px;display:flex}.ppt-outline-item:last-child{border-bottom:none}.ppt-outline-no{color:#3730a3;background:#eef2ff;border-radius:14px;flex:0 0 44px;justify-content:center;align-items:center;width:44px;height:44px;font-size:14px;font-weight:800;display:flex}.ppt-outline-main{min-width:0}.ppt-outline-title{color:#0f172a;font-size:15px;font-weight:700}.ppt-outline-desc{color:#475569;margin-top:6px;font-size:13px;line-height:1.7}.ppt-simple-footer{background:#fff;border-top:1px solid #eef2f7;padding:14px 16px 16px}@media (width<=1180px){.ppt-simple-shell{grid-template-columns:1fr}}@media (width<=760px){.ppt-simple-head,.ppt-outline-head{flex-direction:column;align-items:stretch}}