.message-action-info{position:relative;background-color:transparent;color:var(--message-action-button-text);border:none;padding:4px 10px;border-radius:4px;font-size:12px;cursor:pointer;transition:background-color 0.2s,color 0.2s;display:inline-flex;align-items:center}.message-action-info:hover{background-color:var(--message-action-button-hover-bg);color:var(--message-action-button-hover-text)}.message-action-info svg{width:14px;height:14px;fill:currentColor}.message-action-info .tooltip{visibility:hidden;background-color:var(--code-toolbar-main-bg);color:var(--code-toolbar-item-text);text-align:center;border-radius:4px;padding:5px 10px;position:absolute;z-index:10;bottom:100%;left:50%;transform:translateX(-50%);font-size:12px;white-space:nowrap;box-shadow:0 2px 4px var(--code-toolbar-item-shadow);opacity:0;transition:opacity 0.2s,visibility 0.2s}.message-action-info:hover .tooltip{visibility:visible;opacity:1}.input-area:disabled{opacity:0.5;cursor:not-allowed}.input-container.disabled{box-shadow:none}:root{--sidebar-width:200px;--sidebar-width-collapsed:0px;--toolbar-height:50px;--input-box-base-height:50px;--input-actions-height:40px;--input-area-total-height:180px;--background:#1e1e1e;--text:#e0e0e0;--toolbar-bg:#252526;--toolbar-border:#333;--chat-bg:#1e1e1e;--message-user-bg:#3b82f6;--message-user-text:#ffffff;--ai-avatar-bg:#3b82f6;--article-collection-bg:#3b82f6;--article-collection-text:#ffffff;--article-collection-hover:#2563eb;--article-list-bg:#252526;--article-list-shadow:rgba(0,0,0,0.5);--article-card-bg:transparent;--article-card-hover:#333;--article-card-border:#444;--input-bg:#1e1e1e;--input-container-bg:#333;--input-text:#e0e0e0;--send-button-bg:linear-gradient(135deg,#3b82f6,#2563eb);--send-button-icon:#ffffff;--close-btn:#999;--close-btn-hover:#fff;--source-text:#777;--summary-text:#ccc;--date-text:#999;--reading-card-text:#3b82f6;--sidebar-bg:#000;--sidebar-text:#fff;--sidebar-hover:#333;--focus-outline-color:var(--message-user-bg);--code-bg:#2d2d2d;--table-border-color:#555;--input-prefix-text:#a0a0a0;--feature-button-bg:#4a4a4a;--feature-button-text:#e0e0e0;--feature-button-hover-bg:#5a5a5a;--feature-button-active-bg:var(--message-user-bg);--feature-button-active-text:#ffffff;--message-action-button-text:#b0b0b0;--message-action-button-hover-bg:#4a4a4a;--message-action-button-hover-text:#e0e0e0;--code-toolbar-main-bg:#1f2937;--code-toolbar-item-bg:#374151;--code-toolbar-item-hover-bg:#4b5563;--code-toolbar-item-text:#d1d5db;--code-toolbar-item-hover-text:#ffffff;--code-toolbar-item-active-bg:var(--message-user-bg);--code-toolbar-item-shadow:rgba(0,0,0,0.3);--code-language-tag-bg:var(--code-toolbar-item-bg);--code-language-tag-text:var(--code-toolbar-item-text);--code-toolbar-icon-fill:var(--code-toolbar-item-text);--code-toolbar-success-bg:#16a34a;--code-toolbar-success-icon-fill:#ffffff;--search-button-icon:#ffffff;--search-card-bg:var(--article-list-bg);--search-card-shadow:var(--article-list-shadow);--search-loading-bg:var(--input-container-bg);--view-all-button-bg:var(--article-collection-bg);--view-all-button-hover:var(--article-collection-hover);--user-avatar-bg:#555;--user-avatar-text:#ffffff;--user-avatar-hover-bg:#777;--user-dropdown-bg:#2d2d2d;--user-dropdown-item-text:#e0e0e0;--user-dropdown-item-hover-bg:#3c3c3c;--user-dropdown-item-hover-text:#ffffff;--user-dropdown-shadow:rgba(0,0,0,0.4)}[data-theme="light"]{--background:#ffffff;--text:#333333;--toolbar-bg:#f4f4f4;--toolbar-border:#e0e0e0;--chat-bg:#ffffff;--message-user-bg:#2563eb;--message-user-text:#ffffff;--ai-avatar-bg:#2563eb;--article-collection-bg:#2563eb;--article-collection-text:#ffffff;--article-collection-hover:#1d4ed8;--article-list-bg:#f4f4f4;--article-list-shadow:rgba(0,0,0,0.1);--article-card-bg:transparent;--article-card-hover:#e8ecef;--article-card-border:#e0e0e0;--input-bg:transparent;--input-container-bg:#e8ecef;--input-text:#333333;--send-button-bg:linear-gradient(135deg,#2563eb,#1d4ed8);--send-button-icon:#ffffff;--close-btn:#666;--close-btn-hover:#000;--source-text:#666;--summary-text:#555;--date-text:#888;--reading-card-text:#2563eb;--sidebar-bg:#f4f4f4;--sidebar-text:#333333;--sidebar-hover:#ccc;--focus-outline-color:var(--message-user-bg);--code-bg:#f3f4f6;--table-border-color:#ddd;--input-prefix-text:#777777;--feature-button-bg:#e0e0e0;--feature-button-text:#333333;--feature-button-hover-bg:#d0d0d0;--feature-button-active-bg:var(--message-user-bg);--feature-button-active-text:#ffffff;--message-action-button-text:#777777;--message-action-button-hover-bg:#e0e0e0;--message-action-button-hover-text:#333333;--code-toolbar-main-bg:#e5e7eb;--code-toolbar-item-bg:#d1d5db;--code-toolbar-item-hover-bg:#9ca3af;--code-toolbar-item-text:#374151;--code-toolbar-item-hover-text:#1f2937;--code-toolbar-item-active-bg:var(--message-user-bg);--code-toolbar-item-shadow:rgba(0,0,0,0.1);--code-language-tag-bg:var(--code-toolbar-item-bg);--code-language-tag-text:var(--code-toolbar-item-text);--code-toolbar-icon-fill:var(--code-toolbar-item-text);--code-toolbar-success-bg:#16a34a;--code-toolbar-success-icon-fill:#ffffff;--search-button-icon:#ffffff;--search-card-bg:var(--article-list-bg);--search-card-shadow:var(--article-list-shadow);--search-loading-bg:var(--input-container-bg);--view-all-button-bg:var(--article-collection-bg);--view-all-button-hover:var(--article-collection-hover);--prism-comment:#6A737D;--prism-string:#032f62;--prism-keyword:#d73a49;--prism-function:#6f42c1;--prism-punctuation:#586069;--prism-operator:#d73a49;--prism-number-boolean:#005cc5;--prism-class-name:#6f42c1;--prism-general-text:#24292e;--user-avatar-bg:#ccc;--user-avatar-text:#333333;--user-avatar-hover-bg:#b0b0b0;--user-dropdown-bg:#f9f9f9;--user-dropdown-item-text:#333333;--user-dropdown-item-hover-bg:#e8ecef;--user-dropdown-item-hover-text:#1a1a1a;--user-dropdown-shadow:rgba(0,0,0,0.15)}.user-profile-container{position:relative;margin-left:auto;display:flex;align-items:center}.user-avatar{width:36px;height:36px;border-radius:50%;background-color:var(--user-avatar-bg);color:var(--user-avatar-text);display:flex;align-items:center;justify-content:center;font-weight:bold;font-size:16px;cursor:pointer;transition:background-color 0.2s;border:none}.user-avatar:hover{background-color:var(--user-avatar-hover-bg)}.user-avatar svg{width:20px;height:20px;fill:currentColor}.user-dropdown-menu{position:absolute;top:calc(100% + 10px);right:0;background-color:var(--user-dropdown-bg);border-radius:8px;box-shadow:0 4px 12px var(--user-dropdown-shadow);padding:8px 0;min-width:150px;display:none;flex-direction:column;z-index:1002;opacity:0;transform:translateY(-10px);transition:opacity 0.2s ease-out,transform 0.2s ease-out}.user-dropdown-menu.show{display:flex;opacity:1;transform:translateY(0)}.user-dropdown-item{padding:10px 15px;color:var(--user-dropdown-item-text);font-size:14px;cursor:pointer;transition:background-color 0.2s,color 0.2s;white-space:nowrap}.user-dropdown-item:hover{background-color:var(--user-dropdown-item-hover-bg);color:var(--user-dropdown-item-hover-text)}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,'Open Sans','Helvetica Neue',sans-serif;background:var(--background);color:var(--text);overflow:hidden;height:100vh}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--toolbar-bg)}::-webkit-scrollbar-thumb{background:#555;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#777}.main-content,.article-list,.input-area,.sidebar,.search-results-card{scrollbar-width:thin;scrollbar-color:#555 var(--toolbar-bg)}.sidebar{width:var(--sidebar-width);background:var(--sidebar-bg);color:var(--sidebar-text);display:flex;flex-direction:column;border-right:1px solid var(--toolbar-border);flex-shrink:0;transition:width 0.3s ease,padding 0.3s ease,transform 0.3s ease;position:fixed;top:var(--toolbar-height);left:0;height:calc(100vh - var(--toolbar-height));overflow-x:hidden;z-index:999}.sidebar-main-items{flex-grow:1;overflow-y:auto;padding-top:20px;padding-bottom:10px}.sidebar-main-items{scrollbar-width:thin;scrollbar-color:#555 var(--toolbar-bg)}.sidebar-main-items::-webkit-scrollbar{width:8px;height:8px}.sidebar-main-items::-webkit-scrollbar-track{background:var(--toolbar-bg)}.sidebar-main-items::-webkit-scrollbar-thumb{background:#555;border-radius:4px}.sidebar-main-items::-webkit-scrollbar-thumb:hover{background:#777}.sidebar-footer-elements{flex-shrink:0;padding-bottom:15px;margin-top:auto}.sidebar-upgrade-section{padding:0px 17px 10px 17px}.sidebar-upgrade-button{display:flex;align-items:center;padding:10px;border-radius:6px;text-decoration:none;color:var(--sidebar-text);background-color:rgba(128,128,128,0.08);transition:background-color 0.2s;border:1px solid var(--toolbar-border)}.sidebar-upgrade-button:hover{background-color:var(--sidebar-hover)}.sidebar-upgrade-button .upgrade-icon{margin-right:10px;display:flex;align-items:center;justify-content:center;color:var(--message-user-bg)}.sidebar-upgrade-button .upgrade-icon svg{fill:currentColor}.sidebar-upgrade-button .upgrade-text{display:flex;flex-direction:column}.sidebar-upgrade-button .upgrade-title{font-size:14px;font-weight:500;color:var(--sidebar-text);line-height:1.3}.sidebar-upgrade-button .upgrade-subtitle{font-size:11px;color:var(--summary-text);line-height:1.3}.sidebar-icp{padding:8px 17px 5px 17px;text-align:center;font-size:11px;color:var(--source-text)}.sidebar-icp a{color:inherit;text-decoration:none}.sidebar-icp a:hover{text-decoration:underline}.sidebar.collapsed .sidebar-footer-elements{padding:10px 0;overflow:hidden}.sidebar.collapsed .sidebar-upgrade-button{justify-content:center}.sidebar.collapsed .sidebar-upgrade-button .upgrade-text{display:none}.sidebar.collapsed .sidebar-upgrade-button .upgrade-icon{margin-right:0}.sidebar.collapsed .sidebar-icp{font-size:0;padding:5px 0}.sidebar.collapsed{width:var(--sidebar-width-collapsed);padding:20px 0;overflow:hidden;border-right:none;transform:translateX(-100%)}.sidebar-item{padding:10px 17px;cursor:pointer;transition:background 0.2s,border-left-color 0.2s;font-size:14px;font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;border-left:3px solid transparent}.sidebar-item-link{text-decoration:none;color:inherit;display:block}.sidebar-item-link:hover .sidebar-item{background:var(--sidebar-hover);border-left-color:var(--message-user-bg)}.sidebar-item:hover{background:var(--sidebar-hover);border-left-color:var(--message-user-bg)}.main-content{flex:1;display:flex;flex-direction:column;margin-left:var(--sidebar-width);margin-top:var(--toolbar-height);height:calc(100vh - var(--toolbar-height));overflow-y:auto;background:var(--chat-bg);padding-bottom:20px;box-sizing:border-box;transition:margin-left 0.3s ease}.main-content.collapsed{margin-left:var(--sidebar-width-collapsed)}.toolbar{display:flex;align-items:center;padding:0 15px;background:var(--toolbar-bg);border-bottom:1px solid var(--toolbar-border);position:fixed;top:0;left:0;width:100%;z-index:1000;height:var(--toolbar-height);box-sizing:border-box}.toolbar .tools{display:flex;align-items:center;flex-shrink:0}.toolbar .tools svg{width:20px;height:20px;margin-right:15px;cursor:pointer;opacity:0.7;stroke:var(--text)}.toolbar .tools svg:hover{opacity:1}.theme-toggle{background:transparent;border:none;cursor:pointer;margin-left:10px;padding:0;display:flex;align-items:center}.theme-toggle svg{width:20px;height:20px;stroke:var(--text);opacity:0.7}.theme-toggle svg:hover{opacity:1}.toolbar-reading-indicator{position:absolute;left:50%;transform:translateX(-50%);color:var(--text);font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:60%;padding:0 10px;display:none;opacity:0;transition:opacity 0.3s ease-in-out}.toolbar-reading-indicator.visible{opacity:1}.message{display:flex;align-items:flex-start;margin:20px 0;opacity:0;transform:translateY(15px);transition:opacity 0.4s ease-out,transform 0.4s ease-out}.message.show{opacity:1;transform:translateY(0)}.message.ai .avatar{width:32px;height:32px;background:var(--ai-avatar-bg);border-radius:50%;margin-right:12px;flex-shrink:0;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:bold}.message.ai .message-content-wrapper{display:flex;flex-direction:column;flex-grow:1;max-width:calc(100% - 44px);min-width:0}.message.ai .content{line-height:1.6;font-size:17px;word-wrap:break-word;overflow-wrap:break-word;max-width:100%;box-sizing:border-box}.message-actions{margin-top:10px;display:flex;gap:8px}.message-action-button{background-color:transparent;color:var(--message-action-button-text);border:none;padding:4px 10px;border-radius:4px;font-size:12px;cursor:pointer;transition:background-color 0.2s,color 0.2s;display:inline-flex;align-items:center}.message-action-button:hover{background-color:var(--message-action-button-hover-bg);color:var(--message-action-button-hover-text)}.message-action-button svg{width:14px;height:14px;margin-right:5px;fill:currentColor}.message.user{display:flex;flex-direction:column;align-items:flex-end;margin-left:auto;margin-bottom:15px}.message.user .content{background:var(--message-user-bg);color:var(--message-user-text);padding:12px 16px;border-radius:8px;border-bottom-right-radius:5px;max-width:85%;line-height:1.6;font-size:17px;position:relative;max-height:4.8em;overflow:hidden;transition:max-height 0.3s ease-out;word-wrap:break-word;overflow-wrap:break-word;white-space:pre-wrap}.message.user .content.expanded{max-height:none;overflow:visible}.message.user .content:not(.expanded)::after{content:'';position:absolute;bottom:0;left:0;right:0;height:2.5em;background:linear-gradient(to top,var(--message-user-bg) 0%,transparent 100%);pointer-events:none}.message.user .expand-collapse-container{text-align:right;margin-top:5px;width:100%}.message.user .expand-collapse-button{background-color:rgba(0,0,0,0.2);color:var(--message-user-text);border:none;border-radius:4px;padding:4px 8px;font-size:12px;cursor:pointer;transition:background-color 0.2s ease;display:inline-flex;align-items:center;gap:4px}.message.user .expand-collapse-button:hover{background-color:rgba(0,0,0,0.3)}.message.user .expand-collapse-button svg{width:12px;height:12px;fill:currentColor}.article-collection{display:inline-block;padding:8px 16px;background:var(--article-collection-bg);color:var(--article-collection-text);border-radius:18px;cursor:pointer;margin-top:12px;transition:transform 0.2s,background 0.2s;font-size:13px;font-weight:500;border:none;box-shadow:0 2px 4px rgba(0,0,0,0.1);text-align:center}.article-collection:hover{transform:scale(1.03);background:var(--article-collection-hover);box-shadow:0 3px 6px rgba(0,0,0,0.15)}.article-list{position:fixed;top:0;right:0;width:400px;height:100%;background:var(--article-list-bg);transform:translateX(100%);transition:transform 0.3s ease-in-out;padding:20px;overflow-y:auto;box-shadow:-5px 0 15px var(--article-list-shadow);z-index:1001;box-sizing:border-box}.article-list.open{transform:translateX(0%)}.article-list-header{font-size:18px;color:var(--text);margin-bottom:30px;padding-bottom:15px;border-bottom:1px solid var(--article-card-border);text-align:center}.close-btn{position:absolute;top:15px;right:20px;background:transparent;border:none;color:var(--close-btn);cursor:pointer;font-size:24px;line-height:1;padding:5px}.close-btn:hover{color:var(--close-btn-hover)}.article-card{background:var(--article-card-bg);padding:15px;cursor:pointer;transition:background 0.2s;border-bottom:1px solid var(--article-card-border)}.article-card:last-child{border-bottom:none}.article-card:hover{background:var(--article-card-hover)}.article-card .title{font-size:16px;font-weight:600;color:var(--text);margin-bottom:5px}.article-card .date{font-size:12px;color:var(--date-text);margin-bottom:10px}.article-card .summary{font-size:14px;color:var(--summary-text);line-height:1.5}.article-card .source{font-size:12px;color:var(--source-text);margin-top:8px;display:flex;align-items:center}.article-card .source img{width:16px;height:16px;border-radius:50%;margin-right:5px}.section-title{font-size:16px;font-weight:600;margin:20px 0 10px;color:var(--text)}.input-box{position:fixed;bottom:0;left:var(--sidebar-width);right:0;background:var(--input-bg);z-index:900;transition:left 0.3s ease;box-sizing:border-box;padding:10px 0}.input-box.collapsed{left:var(--sidebar-width-collapsed)}.input-container{max-width:770px;margin:0 auto;background:var(--input-container-bg);border-radius:18px;position:relative;transition:box-shadow 0.2s ease;display:flex;flex-direction:column;padding:8px 12px;box-sizing:border-box;border:1px solid var(--toolbar-border)}.input-container:focus-within{box-shadow:0 0 0 2px var(--focus-outline-color)}.input-top-row{display:flex;align-items:center;width:100%;min-height:var(--input-box-base-height)}.input-prefix{font-size:14px;color:var(--input-prefix-text);margin-right:8px;white-space:nowrap;font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;display:none}.input-area{flex:1;padding:10px 0px;background:transparent;border:none;color:var(--input-text);font-size:14px;line-height:1.5;resize:none;box-sizing:border-box;overflow-y:auto;font-family:'Consolas','Courier New',monospace;min-height:calc(var(--input-box-base-height) - 20px);max-height:120px}.input-area:focus{outline:none}.send-button{width:36px;height:36px;border-radius:50%;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:transform 0.2s;margin-left:8px;flex-shrink:0;background:var(--send-button-bg)}.send-button:hover{transform:scale(1.05)}.send-button svg{width:18px;height:18px;fill:none;stroke:var(--send-button-icon);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.input-bottom-actions{display:flex;align-items:center;padding-top:8px;gap:8px;height:var(--input-actions-height);overflow-x:auto}.text-search-button,.feature-button{padding:6px 12px;border:none;border-radius:16px;background-color:var(--feature-button-bg);color:var(--feature-button-text);font-size:13px;cursor:pointer;transition:background-color 0.2s,color 0.2s;white-space:nowrap;font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif}.text-search-button:hover,.feature-button:hover{background-color:var(--feature-button-hover-bg)}.feature-button.active{background-color:var(--feature-button-active-bg);color:var(--feature-button-active-text)}.search-loading{display:flex;align-items:center;margin-top:8px;font-size:0.9em;color:var(--summary-text);opacity:0;transition:opacity 0.3s ease-in}.search-loading.show-loading{opacity:1}.search-loading .spinner{width:18px;height:18px;border:2px solid var(--input-text);border-top-color:transparent;border-radius:50%;animation:spin 1s linear infinite;margin-right:8px}@keyframes spin{to{transform:rotate(360deg)}}.search-results-card{background:var(--search-card-bg);padding:15px;border-radius:8px;max-height:300px;overflow-y:auto;box-shadow:0 4px 6px var(--search-card-shadow);margin-top:10px;opacity:0;transform:scale(0.98);transition:opacity 0.3s ease-in-out 0.1s,transform 0.3s ease-in-out 0.1s}.search-results-card.show-card{opacity:1;transform:scale(1)}.search-result-item{display:flex;align-items:flex-start;padding:10px 0;border-bottom:1px solid var(--article-card-border)}.search-result-item:last-child{border-bottom:none}.search-result-item img{width:40px;height:40px;border-radius:4px;margin-right:10px;flex-shrink:0}.search-result-item .content{flex:1}.search-result-item .title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:5px}.search-result-item .summary{font-size:12px;color:var(--summary-text);line-height:1.4}.view-all-button{display:inline-block;padding:8px 16px;background:var(--view-all-button-bg);color:#fff;border-radius:18px;cursor:pointer;margin-top:10px;transition:transform 0.2s,background 0.2s;font-size:14px;text-align:center}.view-all-button:hover{transform:scale(1.05);background:var(--view-all-button-hover)}button:focus,.sidebar-item:focus-visible,.article-card:focus-visible,.article-collection:focus-visible,.close-btn:focus-visible,.text-search-button:focus-visible,.feature-button:focus-visible,.view-all-button:focus-visible,.message-action-button:focus-visible,.message-action-info:focus-visible{outline:2px solid var(--focus-outline-color);outline-offset:2px}.theme-toggle:focus-visible svg{outline:2px solid var(--focus-outline-color);outline-offset:1px}.message.ai .content{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,'Open Sans','Helvetica Neue',sans-serif}.message.ai .content h1,.message.ai .content h2,.message.ai .content h3,.message.ai .content h4,.message.ai .content h5,.message.ai .content h6{margin-top:1em;margin-bottom:0.5em;font-weight:600;color:var(--text)}.message.ai .content h1{font-size:1.8em}.message.ai .content h2{font-size:1.5em}.message.ai .content h3{font-size:1.3em}.message.ai .content p{margin-bottom:1em}.message.ai .content ul,.message.ai .content ol{margin-bottom:1em;padding-left:2em}.message.ai .content li{margin-bottom:0.3em}.message.ai .content a{color:var(--message-user-bg);text-decoration:none}.message.ai .content a:hover{text-decoration:underline}.message.ai .content blockquote{border-left:4px solid var(--toolbar-border);padding-left:1em;margin-left:0;margin-bottom:1em;color:var(--summary-text)}.message.ai .content hr{border:0;border-top:1px solid var(--toolbar-border);margin:1.5em 0}.message.ai .content pre[class*="language-"]{background:var(--code-bg) !important;border-radius:8px;padding:1em;padding-top:3.2em;overflow:auto;font-size:0.875em;margin-bottom:1em;position:relative;box-shadow:0 4px 6px -1px var(--code-toolbar-item-shadow),0 2px 4px -1px var(--code-toolbar-item-shadow);max-width:100%;box-sizing:border-box}.message.ai .content code[class*="language-"],.message.ai .content pre[class*="language-"] code{font-family:'Consolas','Courier New',monospace !important;color:inherit;line-height:1.5}.message.ai .content p code,.message.ai .content li code{background-color:var(--input-container-bg);padding:0.2em 0.4em;margin:0;font-size:85%;border-radius:3px;font-family:'Consolas','Courier New',monospace}.message.ai .content div.code-toolbar > .toolbar{position:absolute;top:0;left:0;right:0;display:flex;justify-content:space-between;align-items:center;padding:0.5em 0.75em;background:var(--code-toolbar-main-bg);border-bottom:1px solid var(--toolbar-border);border-top-left-radius:8px;border-top-right-radius:8px;box-sizing:border-box;opacity:1 !important;pointer-events:none;height:auto}.message.ai .content div.code-toolbar > .toolbar .toolbar-item{display:flex;align-items:center;pointer-events:all}.message.ai .content div.code-toolbar > .toolbar .toolbar-item:not(:first-child){margin-left:0.5em}.message.ai .content div.code-toolbar > .toolbar .toolbar-item > button,.message.ai .content div.code-toolbar > .toolbar .toolbar-item > a,.message.ai .content div.code-toolbar > .toolbar .toolbar-item > span{background:var(--code-toolbar-item-bg);color:var(--code-toolbar-item-text);font-size:0.75em;padding:0.3em 0.6em;border-radius:4px;cursor:pointer;border:none;box-shadow:0 1px 2px 0 var(--code-toolbar-item-shadow);display:inline-flex;align-items:center;transition:background-color 0.2s,color 0.2s,transform 0.1s,box-shadow 0.2s;font-weight:500;white-space:nowrap;text-decoration:none}.message.ai .content div.code-toolbar > .toolbar .toolbar-item > button:hover,.message.ai .content div.code-toolbar > .toolbar .toolbar-item > a:hover,.message.ai .content div.code-toolbar > .toolbar .toolbar-item > span:hover{background:var(--code-toolbar-item-hover-bg);color:var(--code-toolbar-item-hover-text);box-shadow:0 2px 4px 0 var(--code-toolbar-item-shadow)}.message.ai .content div.code-toolbar > .toolbar .toolbar-item > button:active,.message.ai .content div.code-toolbar > .toolbar .toolbar-item > a:active{background:var(--code-toolbar-item-active-bg);color:#fff;transform:translateY(0px);box-shadow:inset 0 1px 2px 0 rgba(0,0,0,0.2)}.message.ai .content div.code-toolbar > .toolbar .toolbar-item > span.language-name{background:var(--code-language-tag-bg);color:var(--code-language-tag-text);font-weight:600;text-transform:uppercase;cursor:default}.message.ai .content div.code-toolbar > .toolbar .toolbar-item > span.language-name:hover{background:var(--code-language-tag-bg);color:var(--code-language-tag-text);box-shadow:0 1px 2px 0 var(--code-toolbar-item-shadow)}.message.ai .content div.code-toolbar > .toolbar .toolbar-item > button.copy-to-clipboard-button svg{width:0.9em;height:0.9em;margin-right:0.4em;fill:var(--code-toolbar-icon-fill);transition:fill 0.2s}.message.ai .content div.code-toolbar > .toolbar .toolbar-item > button.copy-to-clipboard-button:hover svg{fill:var(--code-toolbar-item-hover-text)}.message.ai .content div.code-toolbar > .toolbar .toolbar-item > button.copy-to-clipboard-button[data-copy-state="copy"]:hover svg{fill:var(--code-toolbar-item-hover-text)}.message.ai .content div.code-toolbar > .toolbar .toolbar-item > button.copy-to-clipboard-button[data-copy-state="copied"]{background-color:var(--code-toolbar-success-bg) !important;color:var(--code-toolbar-success-icon-fill) !important}.message.ai .content div.code-toolbar > .toolbar .toolbar-item > button.copy-to-clipboard-button[data-copy-state="copied"] svg{fill:var(--code-toolbar-success-icon-fill) !important}[data-theme="light"] .message.ai .content pre[class*="language-"]{border:1px solid var(--table-border-color)}[data-theme="light"] .message.ai .content pre[class*="language-"] code{color:var(--prism-general-text) !important}[data-theme="light"] .message.ai .content .token.comment,[data-theme="light"] .message.ai .content .token.prolog,[data-theme="light"] .message.ai .content .token.doctype,[data-theme="light"] .message.ai .content .token.cdata{color:var(--prism-comment) !important}[data-theme="light"] .message.ai .content .token.string,[data-theme="light"] .message.ai .content .token.char,[data-theme="light"] .message.ai .content .token.attr-value,[data-theme="light"] .message.ai .content .token.url .token.content{color:var(--prism-string) !important}[data-theme="light"] .message.ai .content .token.punctuation{color:var(--prism-punctuation) !important}[data-theme="light"] .message.ai .content .token.operator,[data-theme="light"] .message.ai .content .token.entity,[data-theme="light"] .message.ai .content .token.url{color:var(--prism-operator) !important}[data-theme="light"] .message.ai .content .token.keyword,[data-theme="light"] .message.ai .content .token.selector,[data-theme="light"] .message.ai .content .token.atrule .token.rule{color:var(--prism-keyword) !important}[data-theme="light"] .message.ai .content .token.tag .token.tag > .token.punctuation:first-child,[data-theme="light"] .message.ai .content .token.tag .token.tag > .token.punctuation:last-child{color:var(--prism-punctuation) !important}[data-theme="light"] .message.ai .content .token.tag .token.tag > .token.class-name{color:var(--prism-keyword) !important}[data-theme="light"] .message.ai .content .token.tag .token.attr-name{color:var(--prism-function) !important}[data-theme="light"] .message.ai .content .token.function,[data-theme="light"] .message.ai .content .token.method{color:var(--prism-function) !important}[data-theme="light"] .message.ai .content .token.boolean,[data-theme="light"] .message.ai .content .token.number,[data-theme="light"] .message.ai .content .token.constant,[data-theme="light"] .message.ai .content .token.symbol,[data-theme="light"] .message.ai .content .token.deleted{color:var(--prism-number-boolean) !important}[data-theme="light"] .message.ai .content .token.class-name,[data-theme="light"] .message.ai .content .token.maybe-class-name{color:var(--prism-class-name) !important}.message.ai .content table{border-collapse:collapse;width:auto;margin-bottom:1em;font-size:0.95em;border:1px solid var(--table-border-color)}.message.ai .content th,.message.ai .content td{border:1px solid var(--table-border-color);padding:8px 12px;text-align:left}.message.ai .content th{background-color:var(--input-container-bg);font-weight:600}.ai-thinking-loader{padding:10px 0;font-style:italic;color:var(--summary-text);display:flex;align-items:center;min-height:20px}.ai-thinking-loader .spinner{width:16px;height:16px;border:2px solid var(--summary-text);border-top-color:transparent;border-radius:50%;animation:spin 1s linear infinite;margin-right:10px;flex-shrink:0}.upload-image-button{width:36px;height:36px;border-radius:50%;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background-color 0.2s,transform 0.2s;margin-left:8px;flex-shrink:0;background-color:var(--feature-button-bg);color:var(--feature-button-text)}.upload-image-button:hover{background-color:var(--feature-button-hover-bg);transform:scale(1.05)}.upload-image-button svg{width:18px;height:18px;fill:currentColor}.message.user .user-image-display{max-width:60%;margin-bottom:8px;flex-shrink:0;align-self:flex-end}.message.user .user-image-display img{width:100%;height:auto;border-radius:12px;display:block}.image-preview-container{display:flex;gap:8px;padding:8px 0;flex-wrap:wrap;border-top:1px solid var(--toolbar-border);margin-top:8px}.image-preview-item{position:relative;width:60px;height:60px;border-radius:4px;overflow:hidden;border:1px solid var(--toolbar-border);flex-shrink:0}.image-preview-item img{width:100%;height:100%;object-fit:cover}.image-preview-item .delete-image-btn{position:absolute;top:2px;right:2px;width:18px;height:18px;background-color:rgba(0,0,0,0.6);color:white;border:none;border-radius:50%;font-size:12px;line-height:18px;text-align:center;cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;opacity:0;transition:opacity 0.2s;z-index:10}.image-preview-item:hover .delete-image-btn{opacity:1}.image-preview-item .delete-image-btn svg{width:10px;height:10px}.article-preview-container-in-chat{margin-top:15px;border:1px solid var(--toolbar-border);border-radius:8px;padding:15px;background-color:var(--input-container-bg)}.article-preview-container-in-chat .section-title{font-size:15px;margin-top:0;margin-bottom:12px;color:var(--text)}.article-preview-item-in-chat{padding:10px 0;border-bottom:1px solid var(--article-card-border);cursor:default}.article-preview-item-in-chat:last-child{border-bottom:none;padding-bottom:0}.article-preview-item-in-chat .title{font-size:14px;font-weight:500;color:var(--text);margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;text-overflow:ellipsis;line-height:1.4}.article-preview-item-in-chat .source{font-size:11px;color:var(--source-text);margin-top:5px;display:flex;align-items:center}.article-preview-item-in-chat .source img{width:14px;height:14px;border-radius:50%;margin-right:5px}.view-all-from-preview-btn{display:inline-block;padding:8px 16px;background:var(--article-collection-bg);color:var(--article-collection-text);border-radius:18px;cursor:pointer;margin-top:15px;transition:transform 0.2s,background 0.2s;font-size:13px;font-weight:500;border:none;box-shadow:0 2px 4px rgba(0,0,0,0.1);text-align:center}.view-all-from-preview-btn:hover{transform:scale(1.03);background:var(--article-collection-hover);box-shadow:0 3px 6px rgba(0,0,0,0.15)}.loading-articles-placeholder{display:flex;align-items:center;margin-top:15px;padding:10px;font-size:14px;color:var(--summary-text)}.loading-articles-placeholder .spinner{width:18px;height:18px;border:2px solid var(--summary-text);border-top-color:transparent;border-radius:50%;animation:spin 1s linear infinite;margin-right:10px}.sidebar-item#newChatButton{font-weight:600;color:var(--message-user-bg);border-left-color:var(--message-user-bg);display:flex;align-items:center;padding-left:17px;padding-right:17px}.sidebar-item#newChatButton:hover{background:var(--sidebar-hover);border-left-color:var(--message-user-bg)}.sidebar-item#newChatButton svg{margin-right:8px;fill:currentColor}.sidebar.collapsed .sidebar-item#newChatButton{justify-content:center;padding:10px 0}.sidebar.collapsed .sidebar-item#newChatButton svg{margin-right:0}.sidebar.collapsed .sidebar-item#newChatButton:not(svg){font-size:0;line-height:0}#chatHistoryList{flex-grow:1;overflow-y:auto;padding-top:10px;padding-bottom:10px}#chatHistoryList::-webkit-scrollbar{width:8px;height:8px}#chatHistoryList::-webkit-scrollbar-track{background:var(--toolbar-bg)}#chatHistoryList::-webkit-scrollbar-thumb{background:#555;border-radius:4px}#chatHistoryList::-webkit-scrollbar-thumb:hover{background:#777}.chat-history-item{display:flex;justify-content:space-between;align-items:center;padding:10px 17px;cursor:pointer;transition:background 0.2s,border-left-color 0.2s;font-size:14px;font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;border-left:3px solid transparent}.chat-history-item-title{flex-grow:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-history-delete-btn{background:none;border:none;color:var(--source-text);cursor:pointer;font-size:16px;line-height:1;margin-left:10px;padding:2px 4px;border-radius:4px;opacity:0;transition:opacity 0.2s,color 0.2s,background-color 0.2s;flex-shrink:0}.chat-history-item:hover .chat-history-delete-btn{opacity:1}.chat-history-delete-btn:hover{color:var(--prism-keyword);background-color:rgba(255,0,0,0.1)}.sidebar.collapsed .chat-history-delete-btn{display:none}.chat-history-item:hover{background:var(--sidebar-hover);border-left-color:var(--message-user-bg)}.chat-history-item.active{background:var(--sidebar-hover);border-left-color:var(--message-user-bg);font-weight:600}.sidebar.collapsed .chat-history-item{font-size:0;line-height:0;padding:10px 0;text-align:center}.modal-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,0.6);justify-content:center;align-items:center;z-index:2000;opacity:0;transition:opacity 0.3s ease}.modal-overlay.show{display:flex;opacity:1}.modal-content{background-color:var(--background);color:var(--text);border-radius:8px;box-shadow:0 4px 12px rgba(0,0,0,0.2);width:90%;max-width:400px;transform:translateY(-20px);transition:transform 0.3s ease;opacity:0;display:flex;flex-direction:column}.modal-overlay.show .modal-content{transform:translateY(0);opacity:1}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:15px 20px;border-bottom:1px solid var(--toolbar-border)}.modal-header h3{margin:0;font-size:18px;font-weight:600}.modal-close-btn{background:transparent;border:none;font-size:24px;color:var(--close-btn);cursor:pointer;line-height:1;padding:0 5px;transition:color 0.2s}.modal-close-btn:hover{color:var(--close-btn-hover)}.modal-body{padding:20px;font-size:14px;line-height:1.6}.modal-body p{margin-bottom:10px}.modal-dialog-title-placeholder{font-weight:600;color:var(--message-user-bg)}.modal-footer{display:flex;justify-content:flex-end;gap:10px;padding:15px 20px;border-top:1px solid var(--toolbar-border)}.modal-cancel-btn,.modal-confirm-btn{padding:8px 15px;border-radius:6px;cursor:pointer;font-size:14px;transition:background-color 0.2s,color 0.2s;border:none}.modal-cancel-btn{background-color:var(--feature-button-bg);color:var(--feature-button-text)}.modal-cancel-btn:hover{background-color:var(--feature-button-hover-bg)}.modal-confirm-btn{background-color:var(--message-user-bg);color:var(--message-user-text)}.modal-confirm-btn:hover{background-color:var(--article-collection-hover)}.model-selector-container{position:relative;z-index:10100;display:flex;align-items:center;padding:6px 12px;border-radius:16px;background-color:var(--feature-button-bg);color:var(--feature-button-text);font-size:13px;cursor:pointer;transition:background-color 0.2s,color 0.2s;white-space:nowrap;font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;margin-right:8px;flex-shrink:0;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.model-selector-container:hover{background-color:var(--feature-button-hover-bg)}.model-selector-container .selected-model-text{margin-right:4px}.model-selector-container .dropdown-arrow{transition:transform 0.2s;transform:rotate(0deg)}.model-selector-container.open .dropdown-arrow{transform:rotate(180deg)}.model-dropdown-menu{position:fixed;background-color:var(--toolbar-bg);border-radius:8px;box-shadow:0 4px 15px rgba(0,0,0,0.3);padding:5px 0;display:none;z-index:2000;min-width:max-content;transform-origin:bottom center;transform:scaleY(0);opacity:0;transition:transform 0.2s ease-out,opacity 0.2s ease-out,background-color 0.2s;border:1px solid var(--toolbar-border);overflow:hidden}.model-selector-container.open .model-dropdown-menu{display:block;transform:scaleY(1);opacity:1}.model-dropdown-item{padding:10px 15px;cursor:pointer;color:var(--text);transition:background-color 0.2s,color 0.2s;white-space:nowrap;font-size:14px;font-weight:400;display:block;text-align:left}.model-dropdown-item:hover{background-color:var(--sidebar-hover);color:var(--text)}.model-dropdown-item.active{background-color:var(--code-toolbar-item-hover-bg);color:var(--code-toolbar-item-hover-text);font-weight:500}.input-bottom-actions{display:flex;align-items:center;padding-top:8px;gap:8px;height:var(--input-actions-height);overflow-x:auto}.text-search-button,.feature-button,.model-selector-container{flex-shrink:0}.model-welcome-message{text-align:center;margin-top:auto;margin-bottom:auto;padding-top:80px;padding-bottom:50px;width:100%}.model-welcome-message .welcome-title{font-size:2.5em;font-weight:700;color:var(--text);margin-bottom:20px}.model-welcome-buttons-container{display:flex;justify-content:center;flex-wrap:wrap;gap:15px;padding:20px;max-width:800px;margin:0 auto}.model-prompt-button{background-color:var(--feature-button-bg);color:var(--feature-button-text);padding:12px 25px;border-radius:20px;border:1px solid var(--toolbar-border);font-size:15px;cursor:pointer;transition:background-color 0.2s,transform 0.2s;white-space:nowrap;box-shadow:0 2px 5px rgba(0,0,0,0.1)}.model-prompt-button:hover{background-color:var(--feature-button-hover-bg);transform:translateY(-2px);box-shadow:0 4px 8px rgba(0,0,0,0.2)}.chat-box{padding:20px;padding-bottom:40px;max-width:770px;margin:0 auto;width:100%}.modal-content.category-modal{max-width:500px}.category-list{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;padding:15px 20px}.category-list .category-button{background-color:var(--feature-button-bg);color:var(--feature-button-text);padding:10px 20px;border-radius:20px;border:1px solid var(--toolbar-border);font-size:15px;cursor:pointer;transition:background-color 0.2s,transform 0.2s,box-shadow 0.2s;white-space:nowrap;box-shadow:0 2px 5px rgba(0,0,0,0.1)}.category-list .category-button:hover{background-color:var(--feature-button-hover-bg);transform:translateY(-2px);box-shadow:0 4px 8px rgba(0,0,0,0.2)}.modal-content.article-display-modal{max-width:800px;height:90%;display:flex;flex-direction:column}.article-display-modal .modal-header{flex-shrink:0}.article-display-modal .modal-body{flex-grow:1;overflow-y:auto;padding:15px 20px;display:flex;flex-direction:column}.article-list-container{flex-grow:1}.article-display-modal .article-card{padding:15px 0;border-bottom:1px solid var(--article-card-border);cursor:pointer;transition:background 0.2s}.article-display-modal .article-card:last-child{border-bottom:none}.article-display-modal .article-card:hover{background:var(--article-card-hover)}.article-display-modal .article-card .title{font-size:16px;font-weight:600;color:var(--text);margin-bottom:5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;text-overflow:ellipsis;line-height:1.4}.article-display-modal .article-card .date{font-size:12px;color:var(--date-text);margin-bottom:8px}.article-display-modal .article-card .summary{font-size:14px;color:var(--summary-text);line-height:1.5;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;text-overflow:ellipsis}.article-display-modal .article-card .source{font-size:12px;color:var(--source-text);margin-top:8px;display:flex;align-items:center}.article-display-modal .article-card .source img{width:16px;height:16px;border-radius:50%;margin-right:5px}.load-more-btn{display:block;width:fit-content;margin:20px auto 0;padding:10px 25px;background-color:var(--article-collection-bg);color:var(--article-collection-text);border:none;border-radius:20px;font-size:14px;cursor:pointer;transition:background-color 0.2s,transform 0.2s;box-shadow:0 2px 5px rgba(0,0,0,0.1)}.load-more-btn:hover{background-color:var(--article-collection-hover);transform:translateY(-1px)}.load-more-btn:disabled{background-color:var(--feature-button-hover-bg);color:var(--summary-text);cursor:not-allowed;transform:none;box-shadow:none}.article-display-footer{display:flex;justify-content:center;align-items:center;font-size:13px;color:var(--summary-text);padding:10px 20px;border-top:1px solid var(--toolbar-border);flex-shrink:0}.article-display-footer .current-page-info span{font-weight:600;color:var(--text)}.modal-body.article-list-content::-webkit-scrollbar{width:8px;height:8px}.modal-body.article-list-content::-webkit-scrollbar-track{background:var(--toolbar-bg);border-radius:10px}.modal-body.article-list-content::-webkit-scrollbar-thumb{background:#555;border-radius:4px}.modal-body.article-list-content::-webkit-scrollbar-thumb:hover{background:#777}.articles-loading-indicator{display:flex;align-items:center;justify-content:center;padding:20px;font-size:16px;color:var(--summary-text);text-align:center}.articles-loading-indicator .spinner{width:24px;height:24px;border:3px solid var(--summary-text);border-top-color:transparent;border-radius:50%;animation:spin 1s linear infinite;margin-right:15px}.no-articles-message{text-align:center;color:var(--summary-text);font-size:15px;padding:20px}#user-avatar-image{width:40px;height:40px;object-fit:cover;border-radius:50%;border:none;padding:0;margin:0;background-color:transparent}.user-avatar{width:40px;height:40px;border-radius:50%;background-color:var(--user-avatar-bg);color:var(--user-avatar-text);display:flex;align-items:center;justify-content:center;font-weight:bold;font-size:16px;cursor:pointer;transition:background-color 0.2s;border:none;overflow:hidden;margin-right:20px}.privilege-tag{display:flex;align-items:center;padding:4px 8px;border-radius:12px;font-size:11px;font-weight:600;margin-right:10px;white-space:nowrap;transition:background-color 0.3s ease,color 0.3s ease,transform 0.2s ease;cursor:default;box-shadow:0 1px 3px rgba(0,0,0,0.1)}.privilege-tag-default{background-color:var(--feature-button-bg);color:var(--summary-text);border:1px solid var(--toolbar-border)}.privilege-tag-member{background-color:var(--article-collection-bg);color:var(--article-collection-text);border:1px solid var(--article-collection-bg);box-shadow:0 2px 5px rgba(59,130,246,0.3)}.privilege-tag-member:hover{transform:translateY(-1px);box-shadow:0 3px 6px rgba(59,130,246,0.4)}.privilege-tag-pro{background:linear-gradient(90deg,#FFD700,#FFA500);color:#333333;border:1px solid #FFD700;font-weight:700;box-shadow:0 3px 8px rgba(255,215,0,0.5)}.privilege-tag-pro:hover{transform:translateY(-2px);box-shadow:0 5px 12px rgba(255,215,0,0.6)}.user-profile-container{position:relative;margin-left:auto;display:flex;align-items:center}.modal-content.billing-modal-content{max-width:650px}.billing-intro{text-align:center;margin-bottom:20px;font-size:15px;color:var(--text);font-weight:500}.billing-table-container{overflow-x:auto;margin-bottom:20px;border:1px solid var(--toolbar-border);border-radius:8px;box-shadow:0 2px 8px rgba(0,0,0,0.1)}.billing-table-container table{width:100%;border-collapse:collapse;min-width:550px}.billing-table-container th,.billing-table-container td{border:1px solid var(--table-border-color);padding:12px 15px;text-align:center;font-size:14px;color:var(--text);vertical-align:middle}.billing-table-container thead th{background-color:var(--input-container-bg);font-weight:600;color:var(--text);white-space:nowrap}.billing-table-container tbody tr:nth-child(even){background-color:var(--code-bg)}.billing-table-container tbody td{background-color:var(--background)}[data-theme="light"] .billing-table-container tbody tr:nth-child(even){background-color:#f8f8f8}.billing-table-container tbody td.highlight-member{color:var(--message-user-bg);font-weight:600}.billing-table-container tbody td.highlight-free{color:var(--prism-keyword);font-weight:600}.billing-table-container tbody td.not-available{color:var(--summary-text);font-style:italic;background-color:var(--feature-button-hover-bg)}.billing-note{font-size:13px;color:var(--source-text);text-align:center;line-height:1.5;margin-top:10px}.modal-footer .modal-confirm-btn{background-color:var(--article-collection-bg);color:var(--article-collection-text)}.modal-footer .modal-confirm-btn:hover{background-color:var(--article-collection-hover)}.modal-content.my-rights-modal-content{max-width:480px;max-height:520px;padding:0;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden}.my-rights-body{padding:25px;display:flex;flex-direction:column;gap:20px;overflow-y:auto;align-items:stretch}.user-summary-section{display:flex;flex-direction:column;align-items:center;padding:20px 15px;border-radius:10px;background-color:var(--input-container-bg);box-shadow:0 4px 8px rgba(0,0,0,0.15);position:relative;overflow:hidden;width:100%;box-sizing:border-box;z-index:1}.user-summary-section::before{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background:transparent;transition:background 0.3s ease;z-index:-1;opacity:0.2}.user-summary-section.is-member::before{background:var(--article-collection-bg)}.user-summary-section.is-pro::before{background:linear-gradient(90deg,#FFD700,#FFA500)}.user-avatar-in-modal{width:70px;height:70px;border-radius:50%;object-fit:cover;margin-bottom:12px;border:3px solid var(--message-user-bg);flex-shrink:0;box-shadow:0 0 0 2px var(--background)}.user-details-group{display:flex;flex-direction:column;align-items:center;text-align:center;width:100%}.nickname-and-tag{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;margin-bottom:8px}.nickname-in-modal{font-size:1.4em;font-weight:700;color:var(--text);margin-right:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:180px}.member-status-tag{padding:5px 12px;border-radius:18px;font-size:0.85em;font-weight:600;white-space:nowrap;box-shadow:none;text-transform:uppercase;flex-shrink:0}.member-status-tag.status-default{background-color:var(--feature-button-bg);color:var(--summary-text);border:1px solid var(--toolbar-border)}.member-status-tag.status-member{background-color:var(--article-collection-bg);color:var(--article-collection-text);border:1px solid var(--article-collection-bg)}.member-status-tag.status-pro{background:linear-gradient(90deg,#FFD700,#FFA500);color:#333333;border:1px solid #FFD700}.personal-signature{font-size:0.95em;color:var(--summary-text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:90%}.balance-section{display:flex;flex-direction:column;gap:12px;padding:0 10px}.balance-section h4{font-size:1.1em;font-weight:600;color:var(--text);text-align:center;margin-bottom:15px;padding-bottom:8px;border-bottom:1px dashed var(--toolbar-border)}.balance-item-row{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;background-color:var(--input-container-bg);border-radius:8px;box-shadow:0 1px 3px rgba(0,0,0,0.08)}.balance-item-row .label{font-size:1em;color:var(--summary-text);font-weight:500}.balance-item-row .value{font-size:1.2em;font-weight:700;color:var(--text)}.balance-item-row .value.member-points-value{color:var(--message-user-bg)}.balance-item-row .value.free-points-value{color:var(--prism-keyword)}.membership-status-section{text-align:center;margin-top:10px;padding:0 10px}.membership-text{font-size:1em;color:var(--text);line-height:1.4;font-weight:500;padding:8px 12px;background-color:var(--input-container-bg);border-radius:8px;box-shadow:0 1px 3px rgba(0,0,0,0.08);display:inline-block;max-width:100%;box-sizing:border-box}.membership-text.expired{color:var(--prism-keyword);font-weight:600}.membership-text.active-member{color:var(--message-user-bg);font-weight:600}.usage-stats-section{width:100%;display:flex;flex-direction:column;gap:15px;padding-top:10px}.usage-stats-section h4{font-size:1.1em;font-weight:600;color:var(--text);text-align:center;margin-bottom:0;padding-bottom:8px;border-bottom:1px dashed var(--toolbar-border)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(100px,1fr));gap:10px}.stats-item{background-color:var(--input-container-bg);padding:10px;border-radius:8px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;box-shadow:0 1px 4px rgba(0,0,0,0.08);min-height:50px}.stats-item span:first-child{font-size:0.85em;color:var(--summary-text);margin-bottom:4px}.stats-item span:last-child{font-size:1.1em;font-weight:600;color:var(--text)}.modal-footer{padding:15px 25px;border-top:1px solid var(--toolbar-border);display:flex;justify-content:center;flex-shrink:0}@media (max-width:500px){.modal-content.my-rights-modal-content{max-width:95%}.my-rights-body{padding:15px}.user-summary-section{padding:15px 10px}.nickname-in-modal{font-size:1.3em}.member-status-tag{font-size:0.8em}.personal-signature{font-size:0.9em}.balance-section h4,.usage-stats-section h4{font-size:1em;margin-bottom:10px}.balance-item-row{font-size:0.95em;padding:6px 10px}.balance-item-row .value{font-size:1.1em}.membership-text{font-size:0.95em;padding:6px 10px}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(90px,1fr))}.stats-item{font-size:0.9em;padding:8px}.stats-item span:first-child{font-size:0.8em}.stats-item span:last-child{font-size:1em}.modal-footer{padding:10px 15px}}.modal-content.invite-modal-content{max-width:450px}.invite-body{padding:20px;display:flex;flex-direction:column;gap:15px;align-items:center}.invite-info-item{display:flex;justify-content:space-between;align-items:center;width:90%;background-color:var(--input-container-bg);padding:10px 15px;border-radius:8px;box-shadow:0 1px 3px rgba(0,0,0,0.1)}.invite-label{font-size:15px;color:var(--summary-text);white-space:nowrap;margin-right:10px}.invite-value{font-size:16px;font-weight:600;color:var(--text);white-space:nowrap}.invite-value.invite-price{color:var(--message-user-bg)}.invite-link-container{display:flex;align-items:center;width:90%;border-radius:8px;overflow:hidden;box-shadow:0 1px 3px rgba(0,0,0,0.1);gap:1px}.invite-link-display{flex-grow:1;padding:10px 15px;font-size:14px;color:var(--input-text);background-color:var(--input-container-bg);border-top-left-radius:8px;border-bottom-left-radius:8px;white-space:nowrap;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;border-right:1px solid var(--toolbar-border)}.invite-link-display::-webkit-scrollbar{display:none}.copy-invite-link-btn{background-color:var(--message-user-bg);color:var(--message-user-text);border:none;padding:10px 15px;font-size:14px;cursor:pointer;transition:background-color 0.2s,transform 0.2s;display:flex;align-items:center;gap:5px;flex-shrink:0;border-top-right-radius:8px;border-bottom-right-radius:8px;font-weight:500;box-shadow:0 1px 3px rgba(0,0,0,0.1)}.copy-invite-link-btn:hover{background-color:var(--article-collection-hover);transform:none}.copy-invite-link-btn svg{fill:currentColor;width:16px;height:16px}.invite-note{font-size:13px;color:var(--source-text);text-align:center;margin-top:10px}.invite-price-note{font-weight:600;color:var(--message-user-bg)}.modal-footer #inviteShareBtn{background-color:var(--article-collection-bg);color:var(--article-collection-text);transition:background-color 0.2s}.modal-footer #inviteShareBtn:hover{background-color:var(--article-collection-hover)}.model-intro-text{font-size:0.95em;color:var(--summary-text);margin-top:10px;margin-bottom:20px;line-height:1.6;max-width:600px;text-align:center;padding:0 20px}.model-welcome-message .message-content-wrapper{display:flex;flex-direction:column;align-items:center;padding:20px;box-sizing:border-box}.follow-up-questions-container{display:flex;flex-wrap:wrap;gap:8px;margin-top:15px;padding-top:8px;border-top:1px dashed var(--toolbar-border);justify-content:flex-start}.follow-up-questions-container .feature-button{background-color:var(--input-container-bg);color:var(--text);border:1px solid var(--toolbar-border);padding:8px 12px;border-radius:16px;font-size:13px;cursor:pointer;transition:background-color 0.2s,transform 0.1s;box-shadow:0 1px 3px rgba(0,0,0,0.05)}.follow-up-questions-container .feature-button:hover{background-color:var(--feature-button-hover-bg);transform:translateY(-1px)}.follow-up-loading-indicator{display:flex;align-items:center;justify-content:center;margin-top:15px;padding:0;height:8px;width:80%;max-width:200px;border-radius:4px;overflow:hidden;background:var(--input-container-bg);opacity:0;transition:opacity 0.3s ease-in-out;margin-left:auto;margin-right:auto;position:relative;background-color:var(--toolbar-border)}.follow-up-loading-indicator.show{opacity:1}.follow-up-loading-indicator::before{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(90deg,var(--toolbar-border) 0%,var(--summary-text) 50%,var(--toolbar-border) 100%
);background-size:200% 100%;animation:gradient-breathe 2s infinite ease-in-out}@keyframes gradient-breathe{0%{background-position:-100% 0}50%{background-position:100% 0}100%{background-position:-100% 0}}.message-action-button svg{width:14px;height:14px;margin-right:5px;fill:currentColor}.modal-content.share-modal-content{max-width:550px}.share-body{padding:20px;display:flex;flex-direction:column;gap:20px;align-items:center}.share-link-section{width:100%;display:flex;flex-direction:column;align-items:center;gap:10px}.share-link-section .share-label{font-size:15px;color:var(--summary-text);margin-bottom:5px}.share-link-container{display:flex;align-items:center;width:100%;border-radius:8px;overflow:hidden;box-shadow:0 1px 3px rgba(0,0,0,0.1);border:1px solid var(--toolbar-border)}.share-link-input{flex-grow:1;padding:10px 15px;font-size:14px;color:var(--input-text);background-color:var(--input-container-bg);border:none;outline:none;white-space:nowrap;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}.share-link-input::-webkit-scrollbar{display:none}.copy-share-link-btn{background-color:var(--message-user-bg);color:var(--message-user-text);border:none;padding:10px 15px;font-size:14px;cursor:pointer;transition:background-color 0.2s,transform 0.2s;display:flex;align-items:center;gap:5px;flex-shrink:0;font-weight:500;box-shadow:0 1px 3px rgba(0,0,0,0.1)}.copy-share-link-btn:hover{background-color:var(--article-collection-hover);transform:none}.copy-share-link-btn svg{fill:currentColor;width:16px;height:16px}.generate-share-link-btn{padding:8px 20px;background-color:var(--article-collection-bg);color:var(--article-collection-text);border:none;border-radius:18px;font-size:14px;cursor:pointer;transition:background-color 0.2s,transform 0.2s;box-shadow:0 2px 5px rgba(0,0,0,0.1)}.generate-share-link-btn:hover{background-color:var(--article-collection-hover);transform:translateY(-1px)}.generate-share-link-btn:disabled{background-color:var(--feature-button-hover-bg);color:var(--summary-text);cursor:not-allowed;transform:none;box-shadow:none}.share-records-section{width:100%;margin-top:15px;border-top:1px dashed var(--toolbar-border);padding-top:20px}.share-records-section .privacy-note{font-size:13px;color:var(--source-text);text-align:center;margin-bottom:15px;line-height:1.5}.share-records-list{display:flex;flex-direction:column;gap:10px;max-height:250px;overflow-y:auto;padding-right:5px}.share-records-list::-webkit-scrollbar{width:8px}.share-records-list::-webkit-scrollbar-track{background:var(--toolbar-bg)}.share-records-list::-webkit-scrollbar-thumb{background:#555;border-radius:4px}.share-records-list::-webkit-scrollbar-thumb:hover{background:#777}.share-record-item{display:flex;align-items:center;background-color:var(--input-container-bg);padding:8px 12px;border-radius:8px;box-shadow:0 1px 3px rgba(0,0,0,0.1);justify-content:space-between}.share-record-item .record-link{flex-grow:1;font-size:14px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-right:10px;text-decoration:none}.share-record-delete-btn{background:none;border:none;color:var(--source-text);cursor:pointer;font-size:18px;line-height:1;padding:4px 6px;border-radius:4px;transition:color 0.2s,background-color 0.2s;flex-shrink:0}.share-record-delete-btn:hover{color:var(--prism-keyword);background-color:rgba(255,0,0,0.1)}.no-records-message{text-align:center;color:var(--summary-text);font-size:14px;padding:10px}.upgrade-floating-card{position:fixed;bottom:30px;right:30px;background-color:var(--input-container-bg);color:var(--text);border-radius:12px;padding:15px 20px;display:flex;align-items:center;gap:15px;box-shadow:0 4px 15px rgba(0,0,0,0.2);z-index:1000;opacity:0;transform:translateY(20px);transition:opacity 0.3s ease-out,transform 0.3s ease-out;border:1px solid var(--toolbar-border);max-width:320px;box-sizing:border-box}.upgrade-floating-card.show{opacity:1;transform:translateY(0)}.upgrade-floating-card .card-content{display:flex;flex-direction:column;flex-grow:1;min-width:0}.upgrade-floating-card .card-title{font-size:16px;font-weight:600;color:var(--message-user-bg);margin-bottom:5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.upgrade-floating-card .card-subtitle{font-size:12px;color:var(--summary-text);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;text-overflow:ellipsis}.upgrade-floating-card .upgrade-button{background-color:var(--message-user-bg);color:var(--message-user-text);border:none;border-radius:18px;padding:8px 15px;font-size:13px;font-weight:500;cursor:pointer;transition:background-color 0.2s,transform 0.2s,box-shadow 0.2s;flex-shrink:0;white-space:nowrap;box-shadow:0 2px 5px rgba(0,0,0,0.1)}.upgrade-floating-card .upgrade-button:hover{background-color:var(--article-collection-hover);transform:translateY(-1px);box-shadow:0 4px 8px rgba(0,0,0,0.2)}@media (max-width:768px){.upgrade-floating-card{bottom:calc(var(--input-area-total-height) + 20px);right:20px;left:20px;max-width:unset}}.close-floating-card-btn{position:absolute;top:8px;right:8px;background:transparent;border:none;color:var(--close-btn);cursor:pointer;font-size:20px;line-height:1;padding:5px;border-radius:50%;transition:background-color 0.2s,color 0.2s;z-index:10;display:flex;align-items:center;justify-content:center;width:28px;height:28px}.close-floating-card-btn:hover{color:var(--close-btn-hover);background-color:rgba(128,128,128,0.1)}.research-confirmation-container{display:flex;justify-content:center;width:100%;margin-bottom:20px}.research-confirmation-wrapper{background-color:var(--input-container-bg);border-radius:12px;padding:20px;max-width:500px;width:90%;box-shadow:0 4px 15px rgba(0,0,0,0.2);border:1px solid var(--toolbar-border);box-sizing:border-box;display:flex;flex-direction:column;align-items:center;opacity:0 !important;transform:translateY(15px) !important;visibility:hidden !important;transition:opacity 0.3s ease-out,transform 0.3s ease-out,visibility 0.3s ease-out}.research-confirmation-wrapper.show{opacity:1 !important;transform:translateY(0) !important;visibility:visible !important}.research-confirm-title{font-size:1.1em;font-weight:600;color:var(--text) !important;margin-top:0;margin-bottom:15px;text-align:center;width:100%}.research-topic-input{width:calc(100% - 20px);padding:10px;border:1px solid var(--toolbar-border);border-radius:8px;background-color:var(--background);color:var(--text);font-size:1.05em !important;line-height:1.5;resize:none;min-height:38px;max-height:100px;margin-bottom:20px;box-sizing:border-box;overflow:hidden}.research-topic-input::-webkit-scrollbar{width:8px;height:8px}.research-topic-input::-webkit-scrollbar-track{background:var(--toolbar-bg);border-radius:4px}.research-topic-input::-webkit-scrollbar-thumb{background:#555;border-radius:4px}.research-topic-input::-webkit-scrollbar-thumb:hover{background:#777}.research-topic-input:focus{outline:2px solid var(--focus-outline-color);border-color:transparent}.start-research-btn{display:block;width:fit-content;margin:0 auto 15px;padding:10px 25px;background-color:var(--article-collection-bg);color:var(--article-collection-text);border:none;border-radius:20px;font-size:14px;font-weight:500;cursor:pointer;transition:background-color 0.2s,transform 0.2s,box-shadow 0.2s;box-shadow:0 2px 5px rgba(0,0,0,0.1)}.start-research-btn:hover{background-color:var(--article-collection-hover);transform:translateY(-1px);box-shadow:0 4px 8px rgba(0,0,0,0.2)}.research-hint-text{font-size:12px;color:var(--summary-text) !important;text-align:center;margin-top:0;margin-bottom:0}.deep-research-results{display:flex;flex-direction:column;align-items:center;width:100%;margin-bottom:20px;border:none;box-shadow:none;padding:0}.deep-research-wrapper{border-radius:12px;border:1px solid var(--toolbar-border);box-shadow:0 4px 15px rgba(0,0,0,0.2);padding:0;max-width:900px;width:90%;display:flex;min-height:450px;opacity:0;transform:translateY(15px);transition:opacity 0.3s ease-out,transform 0.3s ease-out}.deep-research-wrapper.show{opacity:1;transform:translateY(0)}.deep-research-left-panel{flex-shrink:0;width:250px;padding:20px;border-right:1px solid var(--toolbar-border);display:flex;flex-direction:column;gap:15px;position:relative;background-color:var(--code-bg);border-top-left-radius:12px;border-bottom-left-radius:12px}.deep-research-right-panel{flex-grow:1;padding:20px;height:400px;overflow-y:auto;min-width:0;scrollbar-width:thin;scrollbar-color:#555 var(--toolbar-bg);background-color:var(--background);border-top-right-radius:12px;border-bottom-right-radius:12px}.deep-research-right-panel::-webkit-scrollbar{width:8px}.deep-research-right-panel::-webkit-scrollbar-track{background:var(--toolbar-bg);border-radius:4px}.deep-research-right-panel::-webkit-scrollbar-thumb{background:#555;border-radius:4px}.deep-research-right-panel::-webkit-scrollbar-thumb:hover{background:#777}.research-header{display:flex;flex-direction:column;align-items:flex-start;margin-bottom:15px;color:var(--text)}.research-status-title{font-size:1.2em;font-weight:600;margin:0 0 5px 0}.research-duration{font-size:0.9em;color:var(--summary-text);margin:0}.research-steps-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}.research-step-item{display:flex;align-items:center;font-size:0.95em;color:var(--summary-text);transition:color 0.2s;font-weight:500}.research-step-item.active{color:var(--text);font-weight:600}.research-step-icon{width:20px;height:20px;margin-right:10px;flex-shrink:0;display:flex;align-items:center;justify-content:center}.research-step-icon svg{width:18px;height:18px;fill:currentColor;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.research-step-icon.pending svg{color:var(--summary-text)}.research-step-icon.active .spinner{width:16px;height:16px;border:2px solid var(--message-user-bg);border-top-color:transparent;border-radius:50%;animation:spin 1s linear infinite}.research-step-icon.completed svg{color:#16a34a}.research-stream-content h1,.research-stream-content h2,.research-stream-content h3{font-size:1.1em;font-weight:600;color:var(--text);margin-top:1.2em;margin-bottom:0.6em;border-bottom:none;padding-bottom:0}.research-stream-content p{font-size:0.88em;line-height:1.6;color:var(--text);margin-bottom:0.8em}.research-stream-content ul,.research-stream-content ol{margin-bottom:0.8em;padding-left:1.8em;color:var(--text)}.research-stream-content li{font-size:0.88em;margin-bottom:0.3em;color:var(--text)}.research-stream-content a{color:var(--message-user-bg);text-decoration:none}.research-stream-content a:hover{text-decoration:underline}.research-stream-content code{background-color:var(--input-container-bg);padding:0.2em 0.4em;border-radius:3px;font-family:'Consolas','Courier New',monospace;font-size:0.8em}.research-report-display{width:100%;margin-top:20px;background-color:var(--input-container-bg);border-radius:12px;box-shadow:0 4px 15px rgba(0,0,0,0.2);border:1px solid var(--toolbar-border);box-sizing:border-box;opacity:0;transform:translateY(20px);transition:opacity 0.3s ease-out,transform 0.3s ease-out}.research-report-display.show{opacity:1;transform:translateY(0)}.report-header-toolbar{display:flex;justify-content:space-between;align-items:center;padding:10px 20px;border-bottom:1px solid var(--toolbar-border);background-color:var(--code-toolbar-main-bg);border-top-left-radius:12px;border-top-right-radius:12px}.report-header-toolbar .report-title{font-size:1.1em;font-weight:600;color:var(--code-toolbar-item-text);margin:0;display:flex;align-items:center;gap:8px}.report-header-toolbar .report-title svg{width:20px;height:20px;fill:currentColor}.report-action-buttons{display:flex;gap:10px}.report-action-buttons .message-action-button{background:var(--code-toolbar-item-bg);color:var(--code-toolbar-item-text);padding:6px 12px;border-radius:6px;font-size:13px;font-weight:500;transition:background-color 0.2s,color 0.2s}.report-action-buttons .message-action-button:hover{background-color:var(--code-toolbar-item-hover-bg);color:var(--code-toolbar-item-hover-text)}.report-content-body{padding:20px;font-size:0.95em;line-height:1.6;color:var(--text);overflow-y:auto;max-height:600px;scrollbar-width:thin;scrollbar-color:#555 var(--toolbar-bg)}.report-content-body::-webkit-scrollbar{width:8px}.report-content-body::-webkit-scrollbar-track{background:var(--toolbar-bg);border-radius:4px}.report-content-body::-webkit-scrollbar-thumb{background:#555;border-radius:4px}.report-content-body::-webkit-scrollbar-thumb:hover{background:#777}.report-content-body h1,.report-content-body h2,.report-content-body h3,.report-content-body h4,.report-content-body h5,.report-content-body h6{margin-top:1em;margin-bottom:0.5em;font-weight:600;color:var(--text)}.report-content-body h1{font-size:1.8em}.report-content-body h2{font-size:1.5em}.report-content-body h3{font-size:1.3em}.report-content-body p{margin-bottom:1em}.report-content-body ul,.report-content-body ol{margin-bottom:1em;padding-left:2em}.report-content-body li{margin-bottom:0.3em}.report-content-body a{color:var(--message-user-bg);text-decoration:none}.report-content-body a:hover{text-decoration:underline}.report-content-body pre[class*="language-"]{background:var(--code-bg) !important;border-radius:8px;padding:1em;overflow:auto;font-size:0.875em;margin-bottom:1em;box-shadow:0 4px 6px -1px var(--code-toolbar-item-shadow),0 2px 4px -1px var(--code-toolbar-item-shadow);max-width:100%;box-sizing:border-box}.report-content-body code[class*="language-"],.report-content-body pre[class*="language-"] code{font-family:'Consolas','Courier New',monospace !important;color:inherit;line-height:1.5}.report-content-body p code,.report-content-body li code{background-color:var(--input-container-bg);padding:0.2em 0.4em;margin:0;font-size:85%;border-radius:3px;font-family:'Consolas','Courier New',monospace}.report-content-body table{border-collapse:collapse;width:auto;margin-bottom:1em;font-size:0.95em;border:1px solid var(--table-border-color)}.report-content-body th,.report-content-body td{border:1px solid var(--table-border-color);padding:8px 12px;text-align:left}.report-content-body th{background-color:var(--input-container-bg);font-weight:600}@media (max-width:768px){.research-report-display{padding:15px}.report-header-toolbar{flex-direction:column;align-items:flex-start;gap:10px}.report-action-buttons{width:100%;justify-content:flex-start}.report-content-body{padding:15px}}@media (max-width:768px){.deep-research-wrapper{flex-direction:column;padding:15px;min-height:unset}.deep-research-left-panel{width:100%;padding-right:0;border-right:none;border-bottom:1px solid var(--toolbar-border);padding-bottom:15px;margin-bottom:15px}.deep-research-right-panel{padding-left:0;height:300px}}