:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}@media (width<=1024px){:root{font-size:16px}}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#c084fc;--accent-bg:#c084fc26;--accent-border:#c084fc80;--social-bg:#2f303a80;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px -2px}#social .button-icon{filter:invert()brightness(2)}}body{margin:0}#root{text-align:center;border-inline:1px solid var(--border);box-sizing:border-box;flex-direction:column;width:1126px;max-width:100%;min-height:100svh;margin:0 auto;display:flex}h1,h2{font-family:var(--heading);color:var(--text-h);font-weight:500}h1{letter-spacing:-1.68px;margin:32px 0;font-size:56px}@media (width<=1024px){h1{margin:20px 0;font-size:36px}}h2{letter-spacing:-.24px;margin:0 0 8px;font-size:24px;line-height:118%}@media (width<=1024px){h2{font-size:20px}}p{margin:0}code,.counter{font-family:var(--mono);color:var(--text-h);border-radius:4px;display:inline-flex}code{background:var(--code-bg);padding:4px 8px;font-size:15px;line-height:135%}.chat-app{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);flex-direction:column;height:100vh;display:flex}.chat-header{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:10;background:#fffffff2;border-bottom:1px solid #0000001a;flex-shrink:0;justify-content:center;align-items:center;min-height:52px;padding:8px 16px;display:flex;position:relative;box-shadow:0 2px 10px #0000001a}.header-left-spacer{z-index:2;position:absolute;top:50%;left:12px;transform:translateY(-50%)}.agent-info-center{justify-content:center;align-items:center;gap:8px;display:flex}.agent-info{align-items:center;gap:8px;display:flex;overflow:hidden}.agent-name{color:#333;white-space:nowrap;text-overflow:ellipsis;max-width:200px;margin:0;font-size:15px;font-weight:600;overflow:hidden}.agent-avatar{object-fit:cover;border:2px solid #0000;border-radius:50%;flex-shrink:0;width:36px;height:36px}.agent-avatar-default{color:#fff;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:18px;display:flex}.agent-details,.agent-details h1{display:none}.agent-description{color:#666;white-space:nowrap;margin:0;font-size:12px;line-height:1.2}.header-actions .action-btn{color:#333;cursor:pointer;background:#f8f9fa;border:1px solid #e9ecef;border-radius:8px;padding:8px 16px;font-size:14px;transition:all .3s}.header-actions .action-btn:hover{background:#e9ecef;transform:translateY(-1px)}.chat-main{flex:1;padding:0;overflow:hidden}.messages-container{height:100%;box-shadow:none;background:0 0;border-radius:0;padding:15px 20px;overflow-y:auto}.message{margin-bottom:20px;animation:.3s ease-out fadeIn;display:flex}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes typing{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}.user-message{flex-direction:row-reverse;position:relative}.agent-message{flex-direction:column;align-items:flex-start;max-width:95%;position:relative}.message-avatar{border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;margin:0 10px;font-size:20px;display:flex}.user-message .message-avatar{color:#fff;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%)}.user-message .message-content:before{content:"";border-top:8px solid #0000;border-bottom:8px solid #0000;border-left:8px solid #667eea;width:0;height:0;position:absolute;top:12px;right:-8px}.agent-message .message-avatar{color:#666;background:#f0f0f0;align-self:flex-start;margin:10px 0 8px}.message-content{word-wrap:break-word;word-break:break-word;-webkit-user-select:text;user-select:text;-webkit-touch-callout:default;border-radius:18px;max-width:85%;padding:12px 15px;position:relative}.user-message .message-content{color:#fff;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border-bottom-right-radius:4px}.agent-message .message-content:before{content:"";border-bottom:8px solid #f8f9fa;border-left:8px solid #0000;border-right:8px solid #0000;width:0;height:0;position:absolute;top:-8px;left:12px}.agent-message .message-content:after{content:"";z-index:-1;border-bottom:9px solid #e9ecef;border-left:9px solid #0000;border-right:9px solid #0000;width:0;height:0;position:absolute;top:-9px;left:11px}.agent-message .message-content{color:#333;background:#f8f9fa;border:1px solid #e9ecef;border-bottom-left-radius:4px;margin-left:0}.message-text{word-wrap:break-word;-webkit-user-select:text;user-select:text;font-size:16px;line-height:1.5;text-align:left!important}.message-text *{text-align:left!important}.message-text p,.message-text h1,.message-text h2,.message-text h3,.message-text h4,.message-text h5,.message-text h6,.message-text blockquote,.message-text hr,.message-text div{text-align:left!important;margin-left:0!important;margin-right:auto!important}.message-text strong{color:#1a1a1a;font-weight:700}.message-text em{font-style:italic}.message-text hr{border:none;border-top:1px solid #e0e0e0;margin:16px 0}.message-text code{background:#0000000f;border-radius:3px;padding:2px 5px;font-family:Courier New,monospace;font-size:.9em}.message-text pre{background:#0000000f;border-radius:6px;margin:8px 0;padding:10px;overflow-x:auto}.message-text pre code{background:0 0;border-radius:0;padding:0}.message-text ul,.message-text ol{margin:8px 0;padding-left:1.2em;text-align:left!important}.message-text li{margin:2px 0;padding-left:.2em;line-height:1.5;text-align:left!important}.message-text ul ul,.message-text ol ol,.message-text ul ol,.message-text ol ul{padding-left:1.5em}.message-text h1,.message-text h2,.message-text h3,.message-text h4,.message-text h5,.message-text h6{margin:10px 0 5px;line-height:1.3}.message-text h1{font-size:1.3em}.message-text h2{font-size:1.2em}.message-text h3{font-size:1.1em}.message-text h4{font-size:1.05em}.message-text p{margin:6px 0}.message-text blockquote{color:#666;border-left:3px solid #667eea;margin:8px 0;padding-left:10px}.message-text a{color:#667eea;text-decoration:underline}.message-time{opacity:.7;text-align:right;margin-top:8px;font-size:12px}.file-preview{border:1px solid #fff3;border-radius:10px;margin-top:10px;overflow:hidden}.file-preview img{width:100%;max-width:300px;height:auto;display:block}.file-name{text-align:center;background:#0000001a;padding:8px;font-size:12px}.file-info{background:#ffffff1a;border-radius:8px;margin-top:10px;padding:8px 12px;font-size:14px}.chat-footer{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fffffff2;border-top:1px solid #0000001a;min-height:58px;padding:8px 15px;box-shadow:0 -2px 10px #0000001a}.input-container{align-items:center;gap:8px;margin:0;display:flex}.file-upload-left{flex-shrink:0;align-items:center;gap:6px;display:flex}.input-center-wrapper{flex:1;align-items:center;gap:8px;min-width:0;display:flex}.file-btn{cursor:pointer;color:#667eea;background:linear-gradient(135deg,#f0f3ff 0%,#e8ecff 100%);border:2px solid #d4d8f0;border-radius:20px;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;font-size:18px;transition:all .25s;display:flex}.file-btn:hover{color:#fff;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border-color:#667eea;transform:scale(1.05);box-shadow:0 2px 8px #667eea40}.file-selected{color:#1976d2;text-overflow:ellipsis;white-space:nowrap;background:#e3f2fd;border:1px solid #bbdefb;border-radius:6px;flex-shrink:0;align-items:center;gap:6px;max-width:100px;padding:4px 8px;font-size:12px;display:flex;overflow:hidden}.clear-btn{color:#f44336;cursor:pointer;background:0 0;border:none;flex-shrink:0;padding:0 4px;font-size:14px}.file-thumb-strip{gap:8px;padding:6px 0 4px;display:flex;overflow-x:auto}.file-thumb-item{background:#f8f9fa;border:1px solid #e9ecef;border-radius:6px;flex-shrink:0;width:48px;height:48px;position:relative;overflow:hidden}.file-thumb-item img{object-fit:cover;width:100%;height:100%}.file-thumb-doc{justify-content:center;align-items:center;width:100%;height:100%;font-size:20px;display:flex}.file-thumb-label{color:#fff;text-align:center;white-space:nowrap;text-overflow:ellipsis;background:#00000080;padding:1px 2px;font-size:8px;position:absolute;bottom:0;left:0;right:0;overflow:hidden}.file-thumb-del{color:#fff;cursor:pointer;background:#f44336;border:1.5px solid #fff;border-radius:50%;justify-content:center;align-items:center;width:16px;height:16px;padding:0;font-size:10px;line-height:1;display:flex;position:absolute;top:-3px;right:-3px;box-shadow:0 1px 2px #0000004d}.file-thumb-del:hover{background:#d32f2f}.text-input-wrapper{flex:1;min-width:0}.message-input{color:#333;resize:none;box-sizing:border-box;background:#f8f9fa;border:2px solid #e9ecef;border-radius:20px;outline:none;width:100%;height:40px;padding:0 16px;font-size:14px;line-height:40px;transition:all .3s;display:block}.message-input::placeholder{color:#bcc0ce;font-size:13px}.message-input:focus{background:#fff;border-color:#667eea;box-shadow:0 0 0 3px #667eea14}.input-hint-center{text-align:center;color:#999;margin-top:4px;margin-bottom:2px;font-size:11px}.features-hint{white-space:nowrap;border-top:1px solid #f0f0f0;flex-wrap:nowrap;justify-content:center;gap:15px;padding-top:12px;display:flex;overflow:hidden}.feature-item{color:#666;flex-direction:column;flex-shrink:0;align-items:center;gap:5px;font-size:12px;display:flex}.feature-icon{font-size:20px}.send-btn{color:#fff;cursor:pointer;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border:none;border-radius:20px;flex-shrink:0;justify-content:center;align-items:center;gap:6px;width:auto;min-width:64px;height:40px;padding:0 20px;font-size:14px;font-weight:600;transition:all .25s;display:flex}.send-btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 14px #667eea59}.send-btn:disabled{opacity:.5;cursor:not-allowed}.typing-indicator{align-items:center;gap:4px;padding:10px;display:flex}.typing-indicator span{background:#999;border-radius:50%;width:8px;height:8px;animation:1.4s ease-in-out infinite typing}.typing-indicator span:first-child{animation-delay:-.32s}.typing-indicator span:nth-child(2){animation-delay:-.16s}.messages-container::-webkit-scrollbar{width:8px}.messages-container::-webkit-scrollbar-track{background:#0000000d;border-radius:4px}.messages-container::-webkit-scrollbar-thumb{background:#667eea80;border-radius:4px}.messages-container::-webkit-scrollbar-thumb:hover{background:#667eeab3}@media (width<=768px){.chat-header{min-height:50px;padding:6px 12px}.agent-avatar,.agent-avatar-default{width:35px;height:35px;font-size:18px}.agent-details{white-space:nowrap;flex-wrap:nowrap;align-items:center;gap:6px;display:flex}.agent-details h1{white-space:nowrap;margin:0;font-size:15px;line-height:1.2}.agent-description{color:#666;white-space:nowrap;margin:0;font-size:11px;line-height:1.2}.chat-main{padding:8px}.messages-container{padding:12px}.message-content{max-width:85%}.chat-footer{min-height:50px;padding:6px 12px}.input-container{gap:6px}.file-btn,.send-btn{border-radius:18px;width:auto;min-width:auto;height:36px;padding:0 14px;font-size:13px}.file-btn{width:36px;padding:0}.message-input{color:#333;border-radius:18px;width:100%;height:36px;padding:0 14px;font-size:14px;line-height:36px}.input-hint-center{margin-top:3px;font-size:10px}.features-hint{gap:6px;font-size:9px}.feature-icon{font-size:14px}.agent-message{flex-direction:column;align-items:flex-start;max-width:98%;position:relative}.agent-message .message-avatar{width:32px;height:32px;margin:8px 0 6px;font-size:16px}.agent-message .message-content{max-width:95%;margin-left:0}}@media (width<=480px){.chat-header{min-height:45px;padding:5px 10px}.agent-avatar,.agent-avatar-default{width:30px;height:30px;font-size:16px}.agent-details{white-space:nowrap;flex-wrap:nowrap;align-items:center;gap:5px;display:flex}.agent-details h1{white-space:nowrap;margin:0;font-size:14px;line-height:1.2}.agent-description{color:#666;white-space:nowrap;margin:0;font-size:10px;line-height:1.2}.chat-footer{min-height:44px;padding:5px 8px}.input-container{gap:5px}.file-btn,.send-btn{border-radius:16px;width:auto;height:32px;padding:0 12px;font-size:12px}.file-btn{width:32px;padding:0}.message-input{border-radius:16px;width:100%;height:32px;padding:0 12px;font-size:12px;line-height:32px}.input-hint-center{margin-top:2px;font-size:9px}.features-hint{gap:5px;font-size:8px}.feature-icon{font-size:12px}.agent-message .message-avatar{width:28px;height:28px;margin:6px 0 4px;font-size:14px}.agent-message .message-content{max-width:95%}}.sidebar-overlay{z-index:999;background:#0000004d;position:fixed;inset:0}.session-sidebar{z-index:1000;background:#fff;flex-direction:column;width:280px;height:100vh;transition:left .3s;display:flex;position:fixed;top:0;left:-300px;box-shadow:2px 0 12px #00000026}.session-sidebar.open{left:0}.sidebar-header-bar{border-bottom:1px solid #eee;justify-content:space-between;align-items:center;padding:16px;display:flex}.sidebar-title{color:#333;font-size:16px;font-weight:600}.sidebar-close{color:#999;cursor:pointer;background:0 0;border:none;border-radius:4px;padding:4px 8px;font-size:18px}.sidebar-close:hover{color:#333;background:#f0f0f0}.session-list{flex:1;padding:8px 0;overflow-y:auto}.session-item{cursor:pointer;border-bottom:1px solid #f5f5f5;align-items:center;padding:10px 16px;transition:background .15s;display:flex;position:relative}.session-item:hover{background:#f8f9fa}.session-item.active{background:#e8f0fe;border-left:3px solid #667eea;padding-left:13px}.session-title{color:#333;text-overflow:ellipsis;white-space:nowrap;text-align:left;flex:1;font-size:14px;overflow:hidden}.session-actions{flex-shrink:0;align-items:center;gap:2px;margin-left:6px;display:flex}.session-rename-btn,.session-del-btn{cursor:pointer;background:0 0;border:none;border-radius:3px;padding:2px 4px;font-size:13px;line-height:1}.session-rename-btn:hover,.session-del-btn:hover{background:#eee}.session-menu-btn{cursor:pointer;color:#667eea;letter-spacing:1px;text-align:center;background:#f0f3ff;border:1px solid #0000;border-radius:12px;min-width:30px;padding:2px 8px;font-size:16px;font-weight:700;line-height:1;transition:all .2s}.session-menu-btn:hover{color:#fff;background:#667eea;border-color:#667eea;box-shadow:0 2px 6px #667eea33}.session-menu-popup{z-index:100;background:#fff;border:1px solid #e0e0e0;border-radius:8px;min-width:150px;margin-top:4px;position:absolute;top:100%;right:0;overflow:hidden;box-shadow:0 4px 16px #0000001f}.session-menu-item{color:#333;cursor:pointer;white-space:nowrap;padding:8px 14px;font-size:13px;transition:background .1s}.session-menu-item:hover{background:#f0f3ff}.session-menu-item-danger{color:#e74c3c}.session-menu-item-danger:hover{background:#fef0f0}.session-menu-divider{background:#f0f0f0;height:1px;margin:4px 0}.edit-title-input{border:1px solid #667eea;border-radius:4px;outline:none;flex:1;padding:4px 8px;font-size:14px}.header-left{align-items:center;gap:8px;display:flex}.menu-btn{cursor:pointer;background:0 0;border:none;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;transition:background .15s;display:flex}.menu-btn:hover{background:#f0f0f0}.menu-icon{color:#555;font-size:22px;line-height:1}.header-right{z-index:2;align-items:center;gap:4px;display:flex;position:absolute;top:50%;right:12px;transform:translateY(-50%)}.header-icon-btn{cursor:pointer;color:#555;background:0 0;border:none;border-radius:8px;justify-content:center;align-items:center;width:36px;height:36px;font-size:16px;transition:background .15s;display:flex}.header-icon-btn:hover{background:#f0f0f0}.icon-plus{font-size:22px;font-weight:700;line-height:1}.icon-refresh{font-size:20px;line-height:1}.header-login-btn{color:#fff;cursor:pointer;white-space:nowrap;background:#667eea;border:1px solid #667eea;border-radius:6px;padding:5px 12px;font-size:13px;font-weight:500;transition:all .15s}.header-login-btn:hover{background:#5a6fd6;border-color:#5a6fd6}.session-empty{text-align:center;color:#999;padding:40px 20px;font-size:13px;line-height:1.6}.related-images-section{border-top:1px solid #eee;margin-top:8px;padding-top:8px}.related-images-label{color:#888;margin-bottom:4px;font-size:11px}.related-images-grid{flex-wrap:wrap;gap:4px;display:flex}.related-image-thumb{cursor:pointer;box-sizing:border-box;border:1px solid #e0e0e0;border-radius:6px;flex:0 0 calc(33.333% - 3px);min-width:0;max-width:calc(33.333% - 3px);display:block;overflow:hidden}.related-image-img{object-fit:cover;width:100%;height:75px;display:block}.related-image-title{color:#888;text-overflow:ellipsis;white-space:nowrap;text-align:center;padding:2px 4px;font-size:9px;overflow:hidden}@media (width<=480px){.related-image-thumb{flex:0 0 calc(33.333% - 3px);max-width:calc(33.333% - 3px)}}.image-viewer-overlay{z-index:9999;touch-action:manipulation;-webkit-overflow-scrolling:auto;background:#000000e6;flex-direction:column;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.image-viewer-close{color:#fff;cursor:pointer;z-index:2;-webkit-tap-highlight-color:transparent;background:#ffffff26;border:none;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;font-size:20px;display:flex;position:absolute;top:16px;right:16px}.image-viewer-arrow{color:#fff;cursor:pointer;z-index:10000;-webkit-tap-highlight-color:transparent;touch-action:manipulation;-webkit-user-select:none;user-select:none;pointer-events:auto;background:#667eeae6;border:2px solid #fffc;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;font-size:22px;font-weight:700;line-height:36px;display:flex;position:absolute;top:50%;transform:translateY(-50%);box-shadow:0 2px 8px #0000004d}.image-viewer-arrow:active{background:#764ba2f2;transform:translateY(-50%)scale(.95)}.image-viewer-arrow-left{left:12px}.image-viewer-arrow-right{right:12px}.image-viewer-img{object-fit:contain;-webkit-user-select:none;user-select:none;pointer-events:auto;border-radius:8px;max-width:92vw;max-height:85vh}.image-viewer-caption{color:#ccc;text-align:center;-webkit-user-select:none;user-select:none;max-width:80vw;margin-top:12px;font-size:13px}@media (width<=480px){.image-viewer-arrow{background:#667eeaeb;border:2px solid #ffffffe6;border-radius:50%;width:44px;height:44px;font-size:26px}.image-viewer-arrow-left{left:4px}.image-viewer-arrow-right{right:4px}}.file-download-card{color:#333;-webkit-user-select:text;user-select:text;background:#f0f4ff;border:1px solid #d0d8f0;border-radius:10px;align-items:center;gap:10px;max-width:100%;margin:6px 0;padding:10px 16px;font-size:14px;text-decoration:none;transition:all .2s;display:inline-flex}.file-download-card:hover{background:#e0e8ff;border-color:#667eea;transform:translateY(-1px);box-shadow:0 2px 8px #667eea33}.file-download-card .file-icon{flex-shrink:0;font-size:20px}.file-download-card .file-name{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;font-size:14px;font-weight:500;overflow:hidden}.file-download-card .file-action{color:#667eea;flex-shrink:0;font-size:13px;font-weight:600}.file-download-card .file-actions{flex-shrink:0;align-items:center;gap:8px;display:flex}.file-card-container{background:#f0f4ff;border:1px solid #d0d8f0;border-radius:10px;flex-direction:column;gap:8px;max-width:100%;margin:6px 0;padding:10px 14px;display:flex}.file-card-container .file-download-card{box-shadow:none;color:#333;-webkit-user-select:text;user-select:text;background:0 0;border:none;align-items:center;gap:10px;margin:0;padding:0;text-decoration:none;display:flex}.file-card-container .file-actions{flex-wrap:wrap;justify-content:flex-end;gap:6px;display:flex}.file-btn-preview,.file-btn-download,.file-btn-copy{cursor:pointer;white-space:nowrap;border:1px solid #0000;border-radius:6px;align-items:center;gap:4px;padding:6px 12px;font-size:13px;font-weight:600;transition:all .15s;display:inline-flex;text-decoration:none!important}.file-btn-preview{color:#667eea;background:#f0f4ff;border-color:#c8d4f8}.file-btn-preview:hover{background:#dce4ff;border-color:#667eea}.file-btn-download{color:#4a5ec7;background:#e8ecf8;border-color:#c8d4f8}.file-btn-download:hover{background:#d0d8f4;border-color:#667eea;transform:translateY(-1px);box-shadow:0 2px 6px #667eea33}.file-btn-copy{color:#666;background:#f5f5f5;border-color:#ddd}.file-btn-copy:hover{background:#e8e8e8;border-color:#ccc}.multi-select-active .messages-container{padding-left:40px}.multi-select-checkbox{z-index:10;justify-content:center;align-items:center;display:flex;position:absolute;top:50%;left:-36px;transform:translateY(-50%)}.multi-select-checkbox input{cursor:pointer;accent-color:#667eea;width:18px;height:18px}.multi-select-bar{z-index:100;background:#fff;border-top:1px solid #e8e8e8;flex-shrink:0;align-items:center;gap:10px;padding:10px 16px;display:flex;box-shadow:0 -2px 10px #00000014}.multi-select-all{color:#333;cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:4px;font-size:13px;display:flex}.multi-select-all input{cursor:pointer;accent-color:#667eea;width:16px;height:16px}.multi-selected-count{color:#666;text-align:center;flex:1;font-size:13px}.multi-btn-delete,.multi-btn-copy,.multi-btn-share{cursor:pointer;white-space:nowrap;border:none;border-radius:6px;padding:6px 14px;font-size:13px;font-weight:600;transition:all .15s}.multi-btn-delete{color:#e53e3e;background:#fff5f5;border:1px solid #fed7d7}.multi-btn-delete:hover{background:#fed7d7}.multi-btn-copy{color:#667eea;background:#f0f4ff;border:1px solid #d0d8f0}.multi-btn-copy:hover{background:#e0e8ff}.multi-btn-share{color:#fff;background:linear-gradient(135deg,#667eea,#764ba2)}.multi-btn-share:hover{background:linear-gradient(135deg,#5a6fd6,#6a3f96);box-shadow:0 2px 8px #667eea66}.context-menu{z-index:2000;background:#fff;border:1px solid #e0e0e0;border-radius:8px;min-width:100px;padding:4px 0;position:fixed;overflow:hidden;box-shadow:0 4px 16px #00000026}.context-menu-item{color:#333;cursor:pointer;text-align:left;white-space:nowrap;background:#fff;border:none;width:100%;padding:8px 16px;font-size:13px;transition:background .1s;display:block}.context-menu-item:hover{background:#f5f5f5}.context-menu-item:active{background:#e8e8e8}.toast-notification{color:#fff;z-index:3000;white-space:nowrap;background:#000000bf;border-radius:20px;padding:10px 24px;font-size:14px;animation:2s toastFadeInOut;position:fixed;bottom:80px;left:50%;transform:translate(-50%)}@keyframes toastFadeInOut{0%{opacity:0;transform:translate(-50%)translateY(10px)}10%{opacity:1;transform:translate(-50%)translateY(0)}80%{opacity:1;transform:translate(-50%)translateY(0)}to{opacity:0;transform:translate(-50%)translateY(-10px)}}.share-checkbox-col{flex-shrink:0;align-items:center;padding:0 4px;display:flex}.share-checkbox{accent-color:#667eea;cursor:pointer;width:18px;height:18px}.message-shareable{cursor:default}.share-bar{background:#fff;border-top:1px solid #e0e0e0;flex-shrink:0;align-items:center;gap:12px;padding:10px 16px;display:flex;box-shadow:0 -2px 8px #0000000f}.share-bar-select-all{color:#333;cursor:pointer;align-items:center;gap:6px;font-size:13px;display:flex}.share-bar-select-all input{accent-color:#667eea;width:18px;height:18px}.share-bar-count{color:#888;flex:1;font-size:13px}.share-bar-actions{gap:8px;display:flex}.share-bar-btn{cursor:pointer;border:none;border-radius:6px;padding:6px 16px;font-size:13px}.share-bar-cancel{color:#666;background:#f0f0f0}.share-bar-cancel:hover{background:#e0e0e0}.share-bar-copy{color:#fff;background:#667eea}.share-bar-copy:hover{background:#5a6fd6}.share-viewer{background:#f5f6fa;flex-direction:column;min-height:100vh;display:flex}.share-viewer-loading{text-align:center;color:#888;padding:80px 20px;font-size:15px}.share-viewer-error{text-align:center;padding:80px 20px}.share-error-icon{margin-bottom:16px;font-size:48px}.share-viewer-error h2{color:#333;margin-bottom:8px;font-size:20px}.share-viewer-error p{color:#888;font-size:14px}.share-viewer-header{text-align:center;background:#fff;border-bottom:1px solid #e9ecef;flex-shrink:0;padding:16px 20px}.share-title{color:#333;margin:0 0 4px;font-size:17px;font-weight:600}.share-meta{opacity:.8;font-size:12px}.share-viewer-body{flex-direction:column;flex:1;gap:16px;width:100%;max-width:720px;margin:20px auto;padding:0 16px;display:flex}.share-msg{align-items:flex-start;gap:10px;animation:.25s shareMsgIn;display:flex}.share-msg.share-msg-user{flex-direction:row-reverse;justify-content:flex-start}.share-msg.share-msg-assistant{flex-direction:row}.share-msg.share-msg-system{justify-content:center}@keyframes shareMsgIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.share-msg-avatar{background:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:18px;display:flex;box-shadow:0 1px 3px #00000014}.share-msg-content{flex:1;min-width:0}.share-msg-text{color:#333;word-break:break-word;background:#fff;border-radius:12px;padding:12px 16px;font-size:14px;line-height:1.6;box-shadow:0 1px 4px #0000000f}.share-msg-text strong{color:#222}.share-msg-user .share-msg-text{background:#e8f0fe;border-top-right-radius:4px;max-width:75%;margin-left:auto}.share-msg-assistant .share-msg-text{background:#fff;border-top-left-radius:4px;max-width:75%;margin-right:auto}.share-msg-time{color:#aaa;margin-top:4px;padding-left:4px;font-size:11px}.share-viewer-footer{text-align:center;color:#aaa;border-top:1px solid #f0f0f0;flex-shrink:0;padding:20px;font-size:12px}.logout-confirm-overlay{z-index:3000;background:#00000080;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.logout-confirm-dialog{background:#fff;border-radius:12px;width:360px;max-width:90vw;padding:24px;box-shadow:0 10px 40px #00000040}.logout-confirm-dialog p{color:#333;text-align:center;margin:0 0 20px;font-size:15px;line-height:1.6}.logout-confirm-actions{justify-content:center;gap:12px;display:flex}.logout-btn-cancel,.logout-btn-confirm{cursor:pointer;border:none;border-radius:8px;padding:10px 24px;font-size:14px;font-weight:500;transition:all .15s}.logout-btn-cancel{color:#666;background:#f0f0f0}.logout-btn-cancel:hover{background:#e0e0e0}.logout-btn-confirm{color:#fff;background:#e53e3e}.logout-btn-confirm:hover{background:#c53030}.access-login-overlay{z-index:9999;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);justify-content:center;align-items:center;animation:.3s access-login-fade-in;display:flex;position:fixed;inset:0}@keyframes access-login-fade-in{0%{opacity:0}to{opacity:1}}.access-login-card{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fffffff7;border-radius:16px;width:400px;max-width:90vw;padding:40px 36px;animation:.4s access-login-slide-up;box-shadow:0 20px 60px #0003,0 0 0 1px #ffffff1a}@keyframes access-login-slide-up{0%{opacity:0;transform:translateY(20px)scale(.96)}to{opacity:1;transform:translateY(0)scale(1)}}.access-login-title{color:#333;text-align:center;margin-bottom:8px;font-size:22px;font-weight:700}.access-login-subtitle{text-align:center;color:#888;margin:0 0 24px;font-size:13px;line-height:1.5}.access-login-loading{text-align:center;color:#999;padding:20px 0;font-size:15px}.access-login-error{color:#e53e3e;text-align:center;background:#fff0f0;border:1px solid #fcc;border-radius:8px;margin-bottom:16px;padding:10px 14px;font-size:13px;line-height:1.4}.access-login-success{color:#2f855a;text-align:center;background:#f0fff4;border:1px solid #c6f6d5;border-radius:8px;margin-bottom:16px;padding:10px 14px;font-size:13px;line-height:1.4}.access-login-form{flex-direction:column;gap:14px;display:flex}.access-login-section{flex-direction:column;gap:12px;display:flex}.access-login-input{color:#333;box-sizing:border-box;background:#f8f9fa;border:2px solid #e2e8f0;border-radius:10px;outline:none;width:100%;padding:12px 14px;font-size:15px;transition:border-color .2s,box-shadow .2s}.access-login-input:focus{background:#fff;border-color:#667eea;box-shadow:0 0 0 3px #667eea26}.access-login-input::placeholder{color:#aaa}.access-login-btn{cursor:pointer;border:none;border-radius:10px;justify-content:center;align-items:center;width:100%;padding:12px 20px;font-size:15px;font-weight:600;transition:all .3s;display:flex}.access-login-btn:disabled{opacity:.5;cursor:not-allowed}.access-login-btn-primary{color:#fff;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%)}.access-login-btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 5px 20px #667eea66}.access-login-btn-secondary{color:#555;background:#f0f0f5;border:1px solid #e2e8f0}.access-login-btn-secondary:hover:not(:disabled){background:#e8e8f0;border-color:#cbd5e0}.access-login-sms-row{gap:10px;display:flex}.access-login-sms-row .access-login-input{flex:1}.access-login-sms-row .access-login-btn{white-space:nowrap;width:auto;padding:12px 16px;font-size:13px}.access-login-method-switch{border:2px solid #e2e8f0;border-radius:10px;gap:0;display:flex;overflow:hidden}.access-login-radio{cursor:pointer;color:#666;background:#f8f9fa;flex:1;justify-content:center;align-items:center;gap:8px;padding:10px 12px;font-size:14px;transition:background .2s;display:flex}.access-login-radio:first-child{border-right:1px solid #e2e8f0}.access-login-radio.active{color:#667eea;background:linear-gradient(135deg,#667eea1f,#764ba21f);font-weight:600}.access-login-radio input[type=radio]{accent-color:#667eea;cursor:pointer;width:16px;height:16px}.access-login-radio span{white-space:nowrap}@media (width<=480px){.access-login-card{border-radius:12px;padding:28px 20px}.access-login-title{font-size:20px}.access-login-sms-row{flex-direction:column;gap:10px}.access-login-sms-row .access-login-btn{width:100%}.access-login-radio{padding:8px 6px;font-size:13px}}