html,body{width:100%;height:100%}input::-ms-clear,input::-ms-reveal{display:none}*,*:before,*:after{box-sizing:border-box}html{font-family:sans-serif;line-height:1.15;-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%;-ms-overflow-style:scrollbar;-webkit-tap-highlight-color:rgba(0,0,0,0)}body{margin:0}[tabindex="-1"]:focus{outline:none}hr{box-sizing:content-box;height:0;overflow:visible}h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:.5em;font-weight:500}p{margin-top:0;margin-bottom:1em}abbr[title],abbr[data-original-title]{-webkit-text-decoration:underline dotted;text-decoration:underline dotted;border-bottom:0;cursor:help}address{margin-bottom:1em;font-style:normal;line-height:inherit}input[type=text],input[type=password],input[type=number],textarea{-webkit-appearance:none}ol,ul,dl{margin-top:0;margin-bottom:1em}ol ol,ul ul,ol ul,ul ol{margin-bottom:0}dt{font-weight:500}dd{margin-bottom:.5em;margin-left:0}blockquote{margin:0 0 1em}dfn{font-style:italic}b,strong{font-weight:bolder}small{font-size:80%}sub,sup{position:relative;font-size:75%;line-height:0;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}pre,code,kbd,samp{font-size:1em;font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,Courier,monospace}pre{margin-top:0;margin-bottom:1em;overflow:auto}figure{margin:0 0 1em}img{vertical-align:middle;border-style:none}a,area,button,[role=button],input:not([type=range]),label,select,summary,textarea{touch-action:manipulation}table{border-collapse:collapse}caption{padding-top:.75em;padding-bottom:.3em;text-align:left;caption-side:bottom}input,button,select,optgroup,textarea{margin:0;color:inherit;font-size:inherit;font-family:inherit;line-height:inherit}button,input{overflow:visible}button,select{text-transform:none}button,html [type=button],[type=reset],[type=submit]{-webkit-appearance:button}button::-moz-focus-inner,[type=button]::-moz-focus-inner,[type=reset]::-moz-focus-inner,[type=submit]::-moz-focus-inner{padding:0;border-style:none}input[type=radio],input[type=checkbox]{box-sizing:border-box;padding:0}input[type=date],input[type=time],input[type=datetime-local],input[type=month]{-webkit-appearance:listbox}textarea{overflow:auto;resize:vertical}fieldset{min-width:0;margin:0;padding:0;border:0}legend{display:block;width:100%;max-width:100%;margin-bottom:.5em;padding:0;color:inherit;font-size:1.5em;line-height:inherit;white-space:normal}progress{vertical-align:baseline}[type=number]::-webkit-inner-spin-button,[type=number]::-webkit-outer-spin-button{height:auto}[type=search]{outline-offset:-2px;-webkit-appearance:none}[type=search]::-webkit-search-cancel-button,[type=search]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{font:inherit;-webkit-appearance:button}output{display:inline-block}summary{display:list-item}template{display:none}[hidden]{display:none!important}:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%;text-size-adjust:100%;-webkit-tap-highlight-color:transparent}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}*{box-sizing:border-box}body{margin:0;display:flex;flex-direction:column;min-width:320px;min-height:100vh;overflow-x:hidden}#root{width:100%;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}@media(max-width:768px){h1{font-size:2.5em}h2{font-size:2em}h3{font-size:1.5em}button{padding:.8em 1.6em;font-size:1em}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:#0000000d}::-webkit-scrollbar-thumb{background:#0003;border-radius:2px}}@media(max-width:480px){h1{font-size:2em}h2{font-size:1.6em}h3{font-size:1.3em}button{padding:.9em 1.8em;font-size:1em}}@media(hover:none)and (pointer:coarse){button,a{-webkit-tap-highlight-color:rgba(0,0,0,.1)}button:hover,a:hover{background-color:transparent;color:inherit}button:active,a:active{opacity:.8;transform:translateY(1px)}}@media(max-height:500px)and (orientation:landscape){body{min-height:100vh}h1{font-size:1.8em}h2{font-size:1.5em}}#root{width:100%;min-height:100vh;margin:0;padding:0}.logo{height:6em;padding:1.5em;will-change:filter;transition:filter .3s}.logo:hover{filter:drop-shadow(0 0 2em #646cffaa)}.logo.react:hover{filter:drop-shadow(0 0 2em #61dafbaa)}@keyframes logo-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media(prefers-reduced-motion:no-preference){a:nth-of-type(2) .logo{animation:logo-spin infinite 20s linear}}.card{padding:2em}.read-the-docs{color:#888}.splash-container{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);animation:fadeIn .5s ease-in-out;padding:20px;box-sizing:border-box}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.splash-title{margin-top:30px!important;color:#fff!important;font-weight:300!important;text-shadow:0 2px 4px rgba(0,0,0,.2);animation:slideUp .6s ease-out;font-size:2.5rem}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.loading-spinner{animation:pulse 1.5s infinite ease-in-out}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}@media(max-width:768px){.splash-container{height:100vh;padding:15px}.splash-title{margin-top:20px!important;font-size:2rem}.loading-spinner{width:80px!important;height:80px!important}}@media(max-width:480px){.splash-container{padding:10px}.splash-title{margin-top:15px!important;font-size:1.8rem}.loading-spinner{width:60px!important;height:60px!important}}@media(max-height:500px){.splash-container{min-height:100vh;padding:10px}.splash-title{margin-top:15px!important;font-size:1.5rem}}.login-container{display:flex;justify-content:center;align-items:center;min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);padding:20px;box-sizing:border-box}.login-card{width:400px;max-width:100%;border-radius:12px!important;box-shadow:0 10px 30px #0003!important;overflow:hidden;animation:slideUp .6s ease-out;padding:20px}.login-title{text-align:center;margin-bottom:30px!important;color:#1890ff!important;font-weight:500!important}.login-form{padding:0 24px 24px}.login-button{width:100%;height:40px;font-size:16px;background:linear-gradient(135deg,#667eea,#764ba2);border:none;transition:all .3s ease}.login-button:hover{transform:translateY(-2px);box-shadow:0 4px 12px #667eea4d}.register-link{text-align:center;margin-top:20px}.register-link a{color:#1890ff;text-decoration:none;transition:color .3s ease}.register-link a:hover{color:#40a9ff;text-decoration:underline}@media(max-width:768px){.login-container{padding:15px}.login-card{width:100%;padding:15px}.login-title{margin-bottom:25px!important;font-size:1.5rem!important}.login-form{padding:0 16px 16px}.form-item{margin-bottom:16px}.login-button{height:44px;font-size:16px}}@media(max-width:480px){.login-container{padding:10px}.login-card{padding:12px;border-radius:8px!important}.login-title{margin-bottom:20px!important;font-size:1.3rem!important}.login-form{padding:0 12px 12px}.form-item{margin-bottom:14px}.site-form-item-icon{font-size:18px}.login-button{height:48px;font-size:16px}.register-link{font-size:.9rem}}@media(max-height:500px){.login-container{min-height:100vh;padding:10px}.login-card{width:400px;max-height:90vh;overflow-y:auto;padding:12px}.login-title{margin-bottom:15px!important;font-size:1.2rem!important}.form-item{margin-bottom:12px}.login-button{height:40px}}@media(hover:none)and (pointer:coarse){.login-button:active{transform:translateY(0)}}.register-container{display:flex;justify-content:center;align-items:center;min-height:100vh;background:linear-gradient(135deg,#f093fb,#f5576c);padding:20px;box-sizing:border-box}.register-card{width:400px;max-width:100%;border-radius:12px!important;box-shadow:0 10px 30px #0003!important;overflow:hidden;animation:slideUp .6s ease-out;padding:20px}@keyframes slideUp{0%{transform:translateY(30px);opacity:0}to{transform:translateY(0);opacity:1}}.register-title{text-align:center;margin-bottom:30px!important;color:#ff4d4f!important;font-weight:500!important}.register-form{padding:0 24px 24px}.form-item{margin-bottom:20px}.input-wrapper{position:relative}.site-form-item-icon{color:#00000073;font-size:16px}.register-button{width:100%;height:40px;font-size:16px;background:linear-gradient(135deg,#f093fb,#f5576c);border:none;transition:all .3s ease}.register-button:hover{transform:translateY(-2px);box-shadow:0 4px 12px #f093fb4d}.login-link{text-align:center;margin-top:20px}.login-link a{color:#ff4d4f;text-decoration:none;transition:color .3s ease}.login-link a:hover{color:#ff7875;text-decoration:underline}@media(max-width:768px){.register-container{padding:15px}.register-card{width:100%;padding:15px}.register-title{margin-bottom:25px!important;font-size:1.5rem!important}.register-form{padding:0 16px 16px}.form-item{margin-bottom:16px}.register-button{height:44px;font-size:16px}}@media(max-width:480px){.register-container{padding:10px}.register-card{padding:12px;border-radius:8px!important}.register-title{margin-bottom:20px!important;font-size:1.3rem!important}.register-form{padding:0 12px 12px}.form-item{margin-bottom:14px}.site-form-item-icon{font-size:18px}.register-button{height:48px;font-size:16px}.login-link{font-size:.9rem}}@media(max-height:500px){.register-container{min-height:100vh;padding:10px}.register-card{width:400px;max-height:90vh;overflow-y:auto;padding:12px}.register-title{margin-bottom:15px!important;font-size:1.2rem!important}.form-item{margin-bottom:12px}.register-button{height:40px}}@media(hover:none)and (pointer:coarse){.register-button:active{transform:translateY(0)}}.user-center{width:100%;display:flex;flex-direction:column;min-height:calc(100vh - 120px)}.user-center-content{background-color:#fff;border-radius:8px;box-shadow:0 2px 8px #0000000d;flex:1;max-height:calc(100vh - 300px);overflow-y:auto;padding:16px;margin-top:16px}@media(max-width:768px){.user-center{padding:10px;min-height:calc(100vh - 170px)}.user-center-content{padding:10px;max-height:calc(100vh - 350px)}}.home-content{margin:24px 16px;padding:24px;background:#fff;min-height:calc(100vh - 48px);display:flex;flex-direction:column;border-radius:8px;box-shadow:0 2px 8px #0000001a;animation:fadeIn .5s ease-in-out;box-sizing:border-box}@media(max-width:768px){.home-header{padding:0 16px;height:64px}.home-logo{font-size:20px}.user-info{gap:12px}.home-content{margin:16px 12px;padding:16px;min-height:calc(100vh - 32px);max-height:none}.mobile-menu-button{display:flex;font-size:18px;padding:8px;margin-right:16px;transition:transform .3s ease}.mobile-menu-button:hover,.mobile-menu-button:active{transform:scale(1.1);background-color:#ffffff1a}}@media(max-width:480px){.home-header{padding:0 12px;height:56px}.home-logo{font-size:18px}.user-info{gap:8px;font-size:.9rem}.logout-button{padding:4px 8px!important;font-size:.85rem!important}.home-content{margin:12px 8px;padding:12px;min-height:calc(100vh - 24px);border-radius:6px}}@media(max-height:500px){.home-content{margin:16px;padding:16px;min-height:calc(100vh - 32px)}}.user-info-card{box-shadow:0 2px 8px #0000000d;padding-left:20px;padding-right:0}.user-info-content{width:100%}.user-info-top{display:flex;width:100%;overflow:hidden}.user-avatar-section{flex-shrink:0}.user-main-details{flex:1;display:flex;flex-direction:column;justify-content:center;width:100%;margin-left:30px}.user-nickname{margin-top:10px;font-size:24px}.user-id,.user-score{font-size:12px}.score-label{color:#666}.score-value{color:#1890ff;font-weight:600;margin-left:5px}.user-bio{width:100%;color:#666;font-size:14px;padding:8px 0;background-color:transparent;border:none;border-radius:0;white-space:normal;word-wrap:break-word}.user-actions{display:flex;justify-content:flex-start;padding:0}.action-button{width:45px;height:45px;display:flex;align-items:center;justify-content:center;background-color:#fff;border:1px solid #d9d9d9;border-radius:4px}@media(max-width:768px){.user-info-top{gap:12px}.user-nickname{font-size:14px}.user-bio{width:100%;font-size:12px}.user-main-details{margin-left:20px}}.combined-tabs-container{display:flex;flex-direction:column;width:100%}.main-tabs .ant-tabs-nav{justify-content:flex-start}.main-tabs .ant-tabs-tab{font-size:14px;padding:5px 8px;margin-right:8px}.main-tabs .ant-tabs-tab-active{color:#667eea}.main-tabs .ant-tabs-ink-bar{background-color:#667eea}.sub-tabs .ant-tabs-nav{justify-content:flex-start}.sub-tabs .ant-tabs-tab{font-size:12px;padding:6px 12px;margin-right:8px;color:#666}.sub-tabs .ant-tabs-tab-active{color:#667eea}.sub-tabs .ant-tabs-ink-bar{background-color:#667eea}@media(max-width:768px){.main-tabs .ant-tabs-tab{font-size:13px;padding:8px 12px}.sub-tabs .ant-tabs-tab{font-size:11px;padding:4px 10px}}.content-item-card{height:auto;display:flex;flex-direction:column;border-radius:8px;overflow:hidden;transition:box-shadow .3s ease;padding:0;margin:0;border:none}.content-item-card:hover{box-shadow:0 4px 12px #00000026}.content-item-card .ant-card-body,.content-item-card .ant-card-head,.content-item-card .ant-card-footer{padding:0;margin:0}.item-title.ant-typography{margin:0 0 8px;padding:0}.item-image-container{position:relative;overflow:hidden;background-color:#f0f0f0;padding:0;margin:0}.item-image{width:100%;height:auto;object-fit:contain;transition:transform .3s ease;display:block;margin:0;padding:0}.content-item-card:hover .item-image{transform:scale(1.02)}.item-content{padding:8px;display:flex;flex-direction:column}.item-title{margin:0 0 8px;font-size:16px;line-height:22px;flex:1;padding:0}.item-stats{display:flex;justify-content:space-between;color:#888;font-size:14px;margin:4px 0 0;padding:0}.stat-item{display:flex;align-items:center;gap:4px}@media(max-width:768px){.item-title{font-size:15px;line-height:20px}.item-stats{font-size:13px;gap:16px}}.usercenter-content-list-wrapper{width:100%}.usercenter-loading-container,.usercenter-error-container{padding:40px;text-align:center;font-size:16px}.usercenter-loading-container{color:#1890ff}.usercenter-error-container{color:#e2e2e2}.usercenter-waterfall-grid{column-count:1;column-gap:16px;width:100%;overflow:hidden}.usercenter-waterfall-item{break-inside:avoid;margin-bottom:16px;display:inline-block;width:100%}@media(min-width:576px){.usercenter-waterfall-grid{column-count:2}}@media(min-width:768px){.usercenter-waterfall-grid{column-count:3}}@media(min-width:992px){.usercenter-waterfall-grid{column-count:4}}@media(min-width:1200px){.usercenter-waterfall-grid{column-count:5}}.material-card{height:100%;display:flex;flex-direction:column}.material-card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:8px}.material-card-title{font-size:18px;font-weight:600;margin:0;color:#333}.material-card-price{font-size:16px;font-weight:600}.material-card-price .price{color:#ff4d4f}.material-card-content{font-size:14px;color:#666;margin-bottom:16px;line-height:1.5;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical}.material-card-tags{margin-bottom:16px}.material-card-stats{font-size:14px;color:#999}.material-card-stats .stat-item{display:flex;align-items:center}.material-card-stats .stat-item svg{margin-right:4px}.material-item-wrapper{margin-bottom:16px}@media(max-width:768px){.material-item-wrapper{margin-bottom:12px}}.score-list-container{width:100%}.error-message{color:#ff4d4f;margin-bottom:16px;text-align:center}.score-records-card{margin-top:0}.score-record-item{padding:12px 0;border-bottom:1px solid #f0f0f0}.score-record-item:last-child{border-bottom:none}.score-record-content{display:flex;flex-direction:column;width:100%}.record-header{display:flex;align-items:center;margin-bottom:8px}.record-type-icon{font-size:20px;margin-right:12px}.record-info{flex:1}.record-title{margin:0;font-size:16px;font-weight:500;color:#333}.record-footer{display:flex;justify-content:space-between;align-items:center}.record-score{font-size:16px;font-weight:600}.record-score.earn{color:#52c41a}.record-score.consume{color:#ff4d4f}.record-time{font-size:14px;color:#999}@media(max-width:768px){.record-title,.record-score{font-size:15px}.record-time{font-size:13px}}.edit-profile-container{width:100%;min-height:100vh;background-color:#f5f5f5;display:flex;flex-direction:column;padding:0;box-sizing:border-box}.edit-profile{width:100%;height:100vh;max-width:800px;background-color:#fff;border-radius:8px;box-shadow:0 2px 16px #0000001a;padding:0;margin:0 auto;display:flex;flex-direction:column}.edit-profile-header{display:flex;justify-content:space-between;align-items:center;padding:15px 20px;border-bottom:1px solid #f0f0f0;position:sticky;top:0;background-color:#fff;z-index:100}.header-placeholder{width:40px}@media(max-width:768px){.header-placeholder{width:20px}}.back-link{color:#1890ff;text-decoration:none;font-size:18px;display:flex;align-items:center;justify-content:center;width:40px}.back-link:hover{text-decoration:underline}.edit-profile-title{font-size:24px;font-weight:600;color:#333;margin:0;text-align:center}.edit-profile-error{background-color:#fff2f0;border:1px solid #ffccc7;color:#f5222d;padding:10px 15px;border-radius:4px;margin-bottom:20px}.edit-profile-success{background-color:#f6ffed;border:1px solid #b7eb8f;color:#52c41a;padding:10px 15px;border-radius:4px;margin-bottom:20px}.edit-profile-content{flex:1;overflow-y:auto;padding:20px;box-sizing:border-box}.edit-profile-form{background-color:#fff;border-radius:8px;box-shadow:0 2px 8px #0000000d;padding:24px}.form-section{margin-bottom:30px}.avatar-group{margin-bottom:25px;text-align:center}.avatar-uploader{display:inline-block;margin-top:10px;position:relative}.avatar-wrapper{display:flex;flex-direction:column;align-items:center;cursor:pointer}.user-avatar{margin-bottom:10px;border:2px solid #f0f0f0;transition:transform .2s}.user-avatar:hover{transform:scale(1.05)}.avatar-upload-text{font-size:14px;color:#666;margin-top:8px}.ant-upload.ant-upload-select-picture-card{width:120px;height:120px;border:1px dashed #d9d9d9;border-radius:50%;overflow:hidden;display:flex;flex-direction:column;justify-content:center;align-items:center}.ant-upload.ant-upload-select-picture-card:hover{border-color:#1890ff}.ant-upload.ant-upload-select-picture-card .ant-upload-icon{font-size:24px;color:#999}.section-title{font-size:18px;font-weight:500;color:#333;margin-bottom:16px;padding-bottom:8px;border-bottom:1px solid #f0f0f0}.form-group{margin-bottom:20px}.form-label{display:block;font-size:14px;font-weight:500;color:#555;margin-bottom:8px}.form-input{width:100%;padding:10px 12px;font-size:14px;border:1px solid #d9d9d9;border-radius:4px;transition:all .3s;box-sizing:border-box}.form-input:focus{outline:none;border-color:#1890ff;box-shadow:0 0 0 2px #1890ff33}.form-input[readonly]{background-color:#f5f5f5;cursor:not-allowed}.form-textarea{width:100%;padding:10px 12px;font-size:14px;border:1px solid #d9d9d9;border-radius:4px;resize:vertical;transition:all .3s;box-sizing:border-box}.form-textarea:focus{outline:none;border-color:#1890ff;box-shadow:0 0 0 2px #1890ff33}.form-hint{display:block;font-size:12px;color:#999;margin-top:4px}.form-actions{display:flex;justify-content:center;margin-top:40px;padding-top:20px;border-top:1px solid #f0f0f0}.submit-button{background-color:#1890ff;color:#fff;border:none;border-radius:4px;padding:12px 36px;font-size:16px;font-weight:500;cursor:pointer;transition:all .3s}.submit-button:hover{background-color:#40a9ff}.submit-button:disabled{background-color:#d9d9d9;cursor:not-allowed}.loading{text-align:center;padding:40px;font-size:16px;color:#666}@media(max-width:768px){.edit-profile-container{padding:0;height:100vh}.edit-profile{width:100%;max-width:100%;border-radius:0;box-shadow:none;height:100vh}.edit-profile-content{padding:15px;height:calc(100vh - 60px);overflow-y:auto;-webkit-overflow-scrolling:touch}.edit-profile-form{padding:16px}.edit-profile-title{font-size:20px}.section-title{font-size:16px}.submit-button{padding:10px 24px;font-size:14px}}@media(min-width:768px){.form-row{display:flex;gap:20px}.form-row .form-group{flex:1}}.home-layout{min-height:100vh}.home-header{display:flex;justify-content:space-between;align-items:center;padding:0 24px;background:linear-gradient(135deg,#667eea,#764ba2);box-shadow:0 2px 8px #00000026;position:relative}.home-logo{font-size:24px;font-weight:700;color:#fff;text-shadow:0 2px 4px rgba(0,0,0,.2)}.user-info{display:flex;align-items:center;gap:16px;color:#fff}.logout-button{color:#fff!important;transition:all .3s ease}.logout-button:hover{background-color:#ffffff26!important}.sidebar{background:#001529;overflow:hidden}.menu-item{transition:all .3s ease}.menu-item:hover{background-color:#ffffff1a!important}.home-content{margin:24px 16px;padding:24px;background:#fff;min-height:280px;border-radius:8px;box-shadow:0 2px 8px #0000001a;animation:fadeIn .5s ease-in-out;box-sizing:border-box}.search-container{margin:30px 0;text-align:center}.home-search{max-width:600px;margin:0 auto;transition:all .3s ease}.home-search:hover,.home-search:focus-within{box-shadow:0 4px 12px #00000026;transform:translateY(-1px)}.tools-section{margin-top:40px;padding:24px;background:#fafafa;border-radius:12px}.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.tool-card{height:100%;cursor:pointer;transition:all .3s ease;border:none;border-radius:12px;box-shadow:0 2px 8px #0000000d}.tool-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #0000001f}.tool-card>.ant-card-body{display:flex;align-items:center;gap:16px;padding:20px}.tool-icon{font-size:32px;width:60px;height:60px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-radius:12px}.tool-info{flex:1;text-align:left}.tool-title{margin:0 0 4px;font-size:16px;font-weight:600;color:#333}.tool-description{margin:0;font-size:14px;color:#666;line-height:1.4}@media(max-width:1200px){.tools-grid{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}}@media(max-width:992px){.tools-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}.tool-icon{font-size:28px;width:50px;height:50px}}@media(max-width:768px){.home-container{padding:0 16px}.search-container{margin:20px 0}.home-search{max-width:100%}.tools-section{margin-top:30px;padding:12px}.tools-grid{grid-template-columns:repeat(2,1fr);gap:10px}.tool-card>.ant-card-body{gap:10px;padding:12px}.tool-icon{font-size:20px;width:40px;height:40px;border-radius:8px}.tool-title{font-size:14px}.tool-description{font-size:12px}}@media(max-width:480px){.tools-grid{grid-template-columns:repeat(2,1fr);gap:8px}.tool-card>.ant-card-body{flex-direction:row;text-align:left;gap:8px;padding:10px;align-items:center}.tool-icon{font-size:18px;width:36px;height:36px;flex-shrink:0}.tool-info{flex:1;min-width:0}.tool-title{font-size:13px;margin-bottom:2px!important;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tool-description{font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}}@media(max-height:500px){.tools-section{margin-top:20px;padding:12px}.tools-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}.tool-card>.ant-card-body{padding:12px;gap:10px}.tool-icon{font-size:22px;width:42px;height:42px}.tool-title{font-size:14px}.tool-description{font-size:12px}}@media(hover:none)and (pointer:coarse){.tool-card:active{transform:translateY(-2px);box-shadow:0 4px 16px #0000001a}.home-search:active{box-shadow:0 2px 8px #0000001a}}@media(max-width:768px){.home-header{padding:0 16px;height:64px}.home-logo{font-size:20px}.user-info{gap:12px}.home-content{margin:16px 12px;padding:16px;min-height:calc(100vh - 170px)}.mobile-menu-button{display:flex;font-size:18px;padding:8px;margin-right:16px;transition:transform .3s ease}.mobile-menu-button:hover,.mobile-menu-button:active{transform:scale(1.1);background-color:#ffffff1a}.sidebar{width:240px!important}}.mobile-drawer{box-shadow:2px 0 8px #00000026}.mobile-drawer .ant-menu-item{padding:16px 24px;font-size:16px;transition:all .3s ease}.mobile-drawer .ant-menu-item:hover{background-color:#0000000a;transform:translate(4px)}.mobile-drawer .ant-menu-item:active{background-color:#0000001a;transform:translate(2px)}.ant-drawer-wrapper-open .ant-drawer-content-wrapper{animation:slideIn .3s cubic-bezier(.4,0,.2,1)}@keyframes slideIn{0%{transform:translate(-100%);opacity:0}to{transform:translate(0);opacity:1}}.ant-drawer-mask{animation:fadeIn .3s ease}@media(max-width:480px){.home-header{padding:0 12px;height:56px}.home-logo{font-size:18px}.user-info{gap:8px;font-size:.9rem}.logout-button{padding:4px 8px!important;font-size:.85rem!important}.home-content{margin:12px 8px;padding:12px;min-height:calc(100vh - 150px);border-radius:6px}.menu-item{font-size:.95rem;padding:10px 16px!important}.menu-item:hover,.menu-item:active{background-color:#ffffff26!important}}@media(max-height:500px){.home-content{margin:16px;padding:16px;min-height:calc(100vh - 80px)}}@media(hover:none)and (pointer:coarse){.menu-item:active{background-color:#fff3!important}.logout-button:active{background-color:#ffffff40!important}}@media(max-width:768px){.ant-layout{position:relative}.ant-layout-content{overflow-x:hidden}}.chat-sidebar{border-right:1px solid #f0f0f0;overflow-y:auto;background-color:#fff}.chat-list::-webkit-scrollbar{width:6px}.chat-list::-webkit-scrollbar-track{background:#f1f1f1}.chat-list::-webkit-scrollbar-thumb{background:#c1c1c1;border-radius:3px}.chat-list::-webkit-scrollbar-thumb:hover{background:#a8a8a8}.message-sider{height:100%;display:flex;flex-direction:column;padding:16px}.new-chat-button-top{border-radius:4px;margin-right:8px}.chat-list{padding:8px 0;overflow-y:auto;flex:1}.chat-item{cursor:pointer;transition:background-color .3s;border-radius:10px;margin-bottom:8px!important;padding:16px 20px!important;background-color:#e4e4e4}.chat-item:hover{background-color:#f5f5f5}.chat-item.selected{background-color:#fff7e6;border-right:3px solid #ff9800}.unread-count{display:inline-block;background-color:#ff4d4f;color:#fff;font-size:12px;padding:0 6px;border-radius:10px;min-width:20px;text-align:center}.chat-meta{display:flex;justify-content:flex-end;align-items:center}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/ai_teacher/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/ai_teacher/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/ai_teacher/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/ai_teacher/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/ai_teacher/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/ai_teacher/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/ai_teacher/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/ai_teacher/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/ai_teacher/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/ai_teacher/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/ai_teacher/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/ai_teacher/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/ai_teacher/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/ai_teacher/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/ai_teacher/assets/KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/ai_teacher/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/ai_teacher/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/ai_teacher/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/ai_teacher/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/ai_teacher/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/ai_teacher/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/ai_teacher/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/ai_teacher/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/ai_teacher/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/ai_teacher/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/ai_teacher/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/ai_teacher/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/ai_teacher/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/ai_teacher/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/ai_teacher/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/ai_teacher/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/ai_teacher/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/ai_teacher/assets/KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/ai_teacher/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/ai_teacher/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/ai_teacher/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/ai_teacher/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/ai_teacher/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/ai_teacher/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/ai_teacher/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/ai_teacher/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/ai_teacher/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/ai_teacher/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/ai_teacher/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/ai_teacher/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/ai_teacher/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/ai_teacher/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/ai_teacher/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/ai_teacher/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/ai_teacher/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/ai_teacher/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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) format("woff2"),url(/ai_teacher/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/ai_teacher/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/ai_teacher/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/ai_teacher/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/ai_teacher/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/ai_teacher/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/ai_teacher/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/ai_teacher/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.25"}.katex .katex-mathml{clip:rect(1px,1px,1px,1px);border:0;height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}.ai-message-content{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:14px;line-height:1.6;color:#333;text-align:left;width:100%}.ai-message-link{color:#1890ff;text-decoration:none;transition:color .3s}.ai-message-link:hover{color:#40a9ff;text-decoration:underline}.ai-message-code-block{background-color:#f5f5f5;border-radius:4px;padding:16px;overflow-x:auto;margin:12px 0}.ai-message-code-block code{font-family:Courier New,Courier,monospace;font-size:13px;color:#263238}.ai-message-inline-code{background-color:#f0f0f0;padding:2px 6px;border-radius:3px;font-family:Courier New,Courier,monospace;font-size:13px;color:#e53935}.ai-message-heading{margin:16px 0 8px;font-weight:600}.ai-message-heading-h1{font-size:24px;border-bottom:1px solid #e8e8e8;padding-bottom:8px}.ai-message-heading-h2{font-size:20px;border-bottom:1px solid #e8e8e8;padding-bottom:6px}.ai-message-heading-h3{font-size:18px}.ai-message-heading-h4{font-size:16px}.ai-message-heading-h5{font-size:14px}.ai-message-heading-h6{font-size:12px;color:#999}.ai-message-list{margin:12px 0;padding-left:24px}.ai-message-list-ul{list-style-type:disc}.ai-message-list-ol{list-style-type:decimal}.ai-message-list-item{margin:4px 0}.ai-message-table{border-collapse:collapse;width:100%;margin:12px 0}.ai-message-table-header{background-color:#fafafa;border:1px solid #e8e8e8;padding:8px 12px;text-align:left;font-weight:600}.ai-message-table-cell{border:1px solid #e8e8e8;padding:8px 12px}.ai-message-blockquote{border-left:4px solid #1890ff;padding:8px 16px;margin:12px 0;background-color:#f5f5f5;color:#666}.ai-message-content strong{font-weight:600}.ai-message-content em{font-style:italic}.ai-message-content hr{border:none;border-top:1px solid #e8e8e8;margin:16px 0}.message-list{flex:1;overflow:hidden;background-color:#fafafa}.message-list-container{height:100%;width:100%;display:flex;flex-direction:column;overflow:hidden;position:relative}.ant-list{width:100%;margin:0;padding:0}.ant-list-item{width:100%;padding:0;margin:0}.message-content{padding:16px;flex:1;overflow-y:auto;min-height:0;scroll-behavior:smooth;position:relative}.scroll-to-bottom-button{position:absolute;bottom:10px;left:50%;transform:translate(-50%);width:48px;height:48px;background-color:#fffffff2;border-radius:50%;display:flex;justify-content:center;align-items:center;cursor:pointer;box-shadow:0 2px 6px #0000001a;z-index:1000;transition:background-color .2s ease,box-shadow .2s ease;position:relative}.scroll-to-bottom-button:hover{background-color:#1890ff26;box-shadow:0 3px 8px #00000026}.scroll-to-bottom-button.ai-typing{background-color:#fff3e0f2;box-shadow:0 2px 8px #ff980033}.scroll-to-bottom-button.ai-typing:before{content:"";position:absolute;inset:-2px;border-radius:50%;border:2px solid transparent;border-top-color:#ff9800;border-right-color:#ff9800;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.message-item{display:flex;margin-bottom:16px;align-items:flex-start;animation:fadeIn .3s ease-in-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message-item.user{justify-content:flex-end}.message-item.ai{justify-content:flex-start}.message-bubble{max-width:70%;padding:12px 16px;border-radius:8px;position:relative;word-wrap:break-word}.message-item.user .message-bubble{background-color:#1890ff;color:#fff}.message-item.ai .message-bubble{background-color:#fff;border:1px solid #f0f0f0;color:#333;max-width:100%}.message-text{margin-bottom:4px;word-wrap:break-word}.message-image-container{margin-bottom:8px;display:inline-block;max-width:100%;position:relative}.message-image{max-width:100%;max-height:300px;border-radius:8px;cursor:pointer;transition:transform .2s ease}.message-image:hover{transform:scale(1.02)}@media(max-width:768px){.message-image{max-height:200px}}.image-preview-modal .ant-modal-content{background:#000000e6;border:none;border-radius:8px}.image-preview-modal .ant-modal-body{padding:20px;display:flex;justify-content:center;align-items:center}.image-preview-modal .ant-modal-close{color:#fff;font-size:24px}.image-preview-modal .ant-modal-close:hover{color:#ccc}.message-time{font-size:12px;opacity:.7}.empty-state{display:flex;align-items:center;justify-content:center;height:100%;color:#999}.loading-indicator{text-align:center;padding:16px;color:#999}@media(max-width:768px){.message-header{padding:16px 16px 16px 70px}.message-content{padding:12px}.message-bubble{max-width:80%}}.message-send{width:100%;background-color:#fff;padding:8px;box-sizing:border-box}.message-input-container{width:100%;border:1px solid #d9d9d9;border-radius:8px;overflow:hidden;background-color:#fff}.input-container{width:100%;padding:0;margin:0}.message-input{border:none;resize:none;box-shadow:none;padding:8px 12px;min-height:60px;font-size:14px;line-height:1.5;background-color:#fff}.message-input.ant-input::-webkit-resizer{display:none}.message-input.ant-input::-moz-resizer{display:none}.message-input.ant-input::-o-resizer{display:none}.message-input.ant-input{resize:none!important;overflow:auto;outline:none}.message-input.ant-input:hover,.message-input.ant-input:focus{border-color:transparent;box-shadow:none;background-color:#fff}.tools-container{width:100%;display:flex;justify-content:space-between;align-items:center;padding:6px 12px;box-sizing:border-box;background-color:#fff}.tools-left{display:flex;align-items:center}.tool-button{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border:none;border-radius:4px;background-color:transparent;cursor:pointer;transition:all .3s;margin-right:8px}.add-button:hover{background-color:#f5f5f5;color:#1890ff}.tools-right{display:flex;align-items:center}.send-button{height:32px;padding:0 12px;font-size:14px;border-radius:4px}@media(max-width:768px){.message-send{padding:6px}.message-input{padding:6px 8px;font-size:13px;background-color:#fff}.tools-container{padding:4px 8px;background-color:#fff}.tool-button{width:28px;height:28px;margin-right:6px}.send-button{height:28px;padding:0 10px;font-size:13px}}.chat-page{height:100vh;width:100vw;overflow:hidden;display:flex;flex-direction:column;margin:0;padding:0}.chat-container{height:100%;overflow:hidden;display:flex}.message-content::-webkit-scrollbar{width:6px}.message-content::-webkit-scrollbar-track{background:#f1f1f1}.message-content::-webkit-scrollbar-thumb{background:#c1c1c1;border-radius:3px}.message-content::-webkit-scrollbar-thumb:hover{background:#a8a8a8}.chat-main{display:flex;flex-direction:column;height:100%;flex:1;overflow:hidden;width:100%}.message-list{flex:1;overflow:hidden;display:flex;flex-direction:column;min-height:0;width:100%}.ant-layout-content{width:100%;margin:0;padding:0}.chat-header{display:flex;align-items:center;padding:16px;border-bottom:1px solid #f0f0f0;background-color:#fff}.back-button{margin-right:16px;font-size:18px;color:#1890ff;display:flex;align-items:center;justify-content:center}.chat-title{margin:0;font-size:16px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-header-actions{position:fixed;top:10px;left:10px;z-index:100;display:flex;gap:10px}.mobile-menu-button{background-color:#fff;box-shadow:0 2px 8px #00000026;border-radius:20%;width:50px;height:30px;display:flex;align-items:center;justify-content:center}.mobile-menu-button-right{position:fixed;top:10px;right:10px;z-index:100;background-color:#fff;box-shadow:0 2px 8px #00000026;border-radius:20%;width:50px;height:30px;display:flex;align-items:center;justify-content:center}.drawer-header{display:flex;align-items:center}.drawer-header h3{margin:0;font-size:16px;font-weight:600}.mobile-drawer .ant-drawer-body{padding:0;height:100%}.chat-main.mobile{height:100vh;display:flex;flex-direction:column;overflow:hidden;padding-top:50px}.chat-sidebar{border-right:1px solid #f0f0f0;background-color:#fff;overflow-y:auto;display:flex;flex-direction:column}.sidebar-header{display:flex;justify-content:space-between;align-items:center;padding:16px;border-bottom:1px solid #f0f0f0;background-color:#fff}.collapse-button{font-size:16px}#root,body,html{margin:0;padding:0;height:100%;overflow:hidden}@media(max-width:768px){.chat-sidebar{display:none}.message-bubble{max-width:80%}.send-container{padding:12px}}@media(max-width:480px){.message-bubble{max-width:85%;padding:10px 12px}.message-content{padding:12px 8px}}.content-header{position:sticky;background-color:#fff;z-index:100;top:30px;margin-bottom:30px}.content-search{margin-bottom:30px;display:flex;justify-content:center}.content-tabs{margin-bottom:0}.custom-tabs{border-bottom:none}.custom-tabs .ant-tabs-nav{overflow-x:auto;padding:0;margin:0}.custom-tabs .ant-tabs-tab{font-size:14px;padding:8px 16px;white-space:nowrap;border-bottom:none}.custom-tabs .ant-tabs-tab.ant-tabs-tab-active{border-bottom:none}.custom-tabs .ant-tabs-content{border:none}@media(max-width:767px){.content-header{top:20px}.content-list-wrapper{max-height:calc(100vh - 250px)}}.content-list-wrapper{flex:1;overflow-y:auto;padding:0 16px;max-height:calc(100vh - 200px)}.content-list{padding-bottom:24px;padding-top:0;margin-top:0}.waterfall-grid{column-count:2;column-gap:16px;width:100%;overflow:hidden}@media(min-width:576px){.waterfall-grid{column-count:2}}@media(min-width:768px){.waterfall-grid{column-count:5}}@media(min-width:992px){.waterfall-grid{column-count:4}}@media(min-width:1200px){.waterfall-grid{column-count:5}}.waterfall-item{break-inside:avoid;margin-bottom:16px;display:inline-block;width:100%}.pull-refresh-indicator{background-color:#f0f0f0;transition:height .3s ease;overflow:hidden}.pull-refresh-indicator span{color:#666;font-size:14px}.content-list{transition:transform .3s ease}.content-list .ant-col{margin-bottom:16px}.detail-container{display:flex;flex-direction:column;height:100vh;overflow:hidden;background-color:#f5f5f5}.loading-container,.error-container{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;background-color:#f5f5f5}.loading-text,.error-text{font-size:18px;color:#666;margin-bottom:20px}.error-container .back-button{padding:8px 16px;background-color:#1890ff;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:14px;transition:background-color .3s}.error-container .back-button:hover{background-color:#40a9ff}.detail-content{flex:1;padding:16px;background-color:#fff;margin-bottom:80px;overflow-y:scroll;-webkit-overflow-scrolling:touch;max-height:calc(100vh - 80px)}button{cursor:pointer;border:none;background:none;padding:0}input,textarea{outline:none;border:1px solid #ddd;border-radius:4px;padding:8px}@media(max-width:768px){.detail-content{padding:12px}}.detail-header{display:flex;align-items:center;padding:12px 16px;background-color:#fff;border-bottom:1px solid #eee;position:sticky;top:0;z-index:100}.back-button{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background-color:#f5f5f5;color:#333;cursor:pointer;transition:background-color .2s}.user-info{display:flex;align-items:center;gap:8px}.user-avatar{width:36px;height:36px;border-radius:50%;object-fit:cover;border:2px solid #e0e0e0}.user-name{font-size:16px;font-weight:500;color:#333}@media(max-width:768px){.detail-header{padding:10px 12px}.user-name{font-size:14px}}.image-gallery{margin-bottom:16px}.gallery-container{display:flex;overflow-x:auto;gap:8px;padding-bottom:8px;scrollbar-width:thin;scrollbar-color:#ccc transparent;align-items:flex-start}.gallery-container::-webkit-scrollbar{height:6px}.gallery-container::-webkit-scrollbar-track{background:transparent}.gallery-container::-webkit-scrollbar-thumb{background-color:#ccc;border-radius:3px}.gallery-item{flex:0 0 auto;width:300px;border-radius:8px;overflow:hidden;cursor:pointer;transition:transform .2s;box-shadow:0 2px 4px #0000001a}.gallery-item:hover{transform:scale(1.02)}.gallery-image{width:100%;height:auto;object-fit:contain}.image-zoom-overlay{position:fixed;inset:0;background-color:#000000e6;display:flex;align-items:center;justify-content:center;z-index:1000;cursor:pointer}.image-zoom-container{position:relative;max-width:90%;max-height:90%}.zoomed-image{max-width:100%;max-height:90vh;object-fit:contain;border-radius:8px}.zoom-close{position:absolute;top:-40px;right:0;background-color:#00000080;color:#fff;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background-color .2s}.zoom-close:hover{background-color:#000c}.zoom-prev,.zoom-next{position:absolute;top:50%;transform:translateY(-50%);background-color:#00000080;color:#fff;width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background-color .2s}.zoom-prev{left:-60px}.zoom-next{right:-60px}.zoom-prev:hover,.zoom-next:hover{background-color:#000c}.zoom-indicator{position:absolute;bottom:-30px;left:0;right:0;text-align:center;color:#fff;font-size:14px;background-color:#00000080;padding:4px 12px;border-radius:12px;display:inline-block;margin:0 auto}@media(max-width:768px){.gallery-item{width:200px}.zoom-prev{left:10px}.zoom-next{right:10px}}.content-info{margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid #eee}.content-title{font-size:24px;font-weight:600;color:#333;margin-bottom:16px;line-height:1.3}.content-text{font-size:16px;line-height:1.6;color:#555;margin-bottom:16px;white-space:pre-wrap;word-wrap:break-word}.content-meta{display:flex;align-items:center;gap:12px;font-size:14px;color:#999}.content-time{display:flex;align-items:center;gap:4px}.content-time:before{content:"";display:inline-block;width:16px;height:16px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpolyline points='12 6 12 12 16 14'/%3E%3C/svg%3E");background-size:contain;background-repeat:no-repeat}@media(max-width:768px){.content-title{font-size:20px}.content-text{font-size:15px}.content-info{margin-bottom:20px;padding-bottom:20px}}.comment-list{margin-bottom:24px}.comment-list-title{font-size:18px;font-weight:600;color:#333;margin-bottom:16px}.no-comments{text-align:center;padding:40px 20px;background-color:#fafafa;border-radius:8px;color:#999}.comments-container{display:flex;flex-direction:column;gap:16px}.comment-item{padding:16px;background-color:#fafafa;border-radius:8px}.comment-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.comment-author{display:flex;align-items:center;gap:8px}.author-avatar{width:32px;height:32px;border-radius:50%;object-fit:cover}.author-name{font-size:14px;font-weight:500;color:#333}.comment-content{font-size:14px;line-height:1.5;color:#555;margin-bottom:8px;word-wrap:break-word}.comment-actions{display:flex;gap:16px}.comment-like{display:flex;align-items:center;gap:4px;font-size:12px;color:#999;cursor:pointer;transition:color .2s}.comment-like:hover,.comment-like.liked{color:#ff4757}.like-count{font-size:12px}@media(max-width:768px){.comment-list-title{font-size:16px}.comment-item{padding:12px}.author-avatar{width:28px;height:28px}}.comment-bar{position:fixed;bottom:0;left:0;right:0;padding:12px 16px;background-color:#fff;border-top:1px solid #eee;display:flex;align-items:center;gap:16px;box-shadow:0 -2px 10px #0000000d;z-index:100}.comment-input-container{flex:1;display:flex;align-items:center;gap:8px;background-color:#f5f5f5;padding:8px 12px;border-radius:20px}.comment-input{flex:1;border:none;background:none;font-size:14px;color:#333;outline:none}.comment-input::placeholder{color:#999}.send-button{width:32px;height:32px;border-radius:50%;background-color:#4caf50;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background-color .2s}.send-button:hover:not(:disabled){background-color:#45a049}.send-button:disabled{background-color:#ccc;cursor:not-allowed}.action-buttons{display:flex;align-items:center;gap:16px}.action-button{display:flex;flex-direction:row;align-items:center;gap:4px;background:none;border:none;cursor:pointer;color:#666;transition:color .2s}.action-button:hover{color:#4caf50}.action-button.like:hover,.action-button.like.active{color:#ff4757}.action-button.favorite:hover,.action-button.favorite.active{color:gold}.action-count{font-size:12px;font-weight:500}@media(max-width:768px){.comment-bar{padding:10px 12px;gap:12px}.comment-input-container{padding:6px 10px}.comment-input{font-size:13px}.action-buttons{gap:12px}.action-button svg{width:18px;height:18px}}.waterfall-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}@media(max-width:768px){.search-results-container{padding:12px;margin-top:12px}.results-header{margin-bottom:12px}.results-title{font-size:15px}.results-count{font-size:13px}.waterfall-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}}@media(max-width:480px){.waterfall-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px}}.material-header{position:sticky;background-color:#fff;z-index:100;top:30px;margin-bottom:30px}.material-search{margin-bottom:30px;display:flex;justify-content:center}.search-input{width:90%;max-width:600px}.material-tabs{margin-bottom:24px;background:#fff;border-radius:8px;padding:8px 16px;box-shadow:0 2px 8px #0000001a}.material-tabs>div{scrollbar-width:none;-ms-overflow-style:none}.material-tabs>div::-webkit-scrollbar{display:none}.material-list{max-height:calc(100vh - 360px);overflow-y:auto;background:#fff;border-radius:8px;padding:16px;box-shadow:0 2px 8px #0000001a}.material-list::-webkit-scrollbar{width:8px}.material-list::-webkit-scrollbar-track{background:#f1f1f1;border-radius:4px}.material-list::-webkit-scrollbar-thumb{background:#c1c1c1;border-radius:4px}.material-list::-webkit-scrollbar-thumb:hover{background:#a8a8a8}@media(max-width:767px){.material-header{top:20px}.material-search{justify-content:center}.search-input{width:90%;max-width:600px}.material-list{max-height:calc(100vh - 410px)}}.question-list-header{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background-color:#fff;border-bottom:1px solid #f0f0f0;box-shadow:0 2px 8px #0000000d}.cart-button{font-size:20px;color:#333}.question-list-container{flex:1;overflow-y:auto;padding:16px;background-color:#f5f5f5}.question-list-empty{display:flex;justify-content:center;align-items:center;height:200px;color:#999;font-size:16px}.question-item{background-color:#fff;border-radius:8px;padding:16px;margin-bottom:12px;box-shadow:0 2px 8px #0000000d;transition:box-shadow .3s ease}.question-item:hover{box-shadow:0 4px 12px #0000001a}.question-content{margin-bottom:12px}.question-title{margin:0 0 8px;font-size:16px;font-weight:600;color:#333;line-height:1.4}.question-desc{margin:0;font-size:14px;color:#666;line-height:1.5;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.question-meta{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:#999}.question-tag{background-color:#e6f7ff;color:#1890ff;padding:2px 8px;border-radius:4px}.question-time{font-size:12px;color:#999}.question-stats{display:flex;justify-content:space-between;align-items:center;margin-top:12px;font-size:14px;color:#666}.question-like-count{display:flex;align-items:center;gap:4px;cursor:pointer;transition:color .3s ease}.question-like-count:hover{color:#ff4d4f}.question-collect-count{display:flex;align-items:center;gap:4px;cursor:pointer;transition:color .3s ease}.question-collect-count:hover{color:#faad14}.question-list-footer{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background-color:#fff;border-top:1px solid #f0f0f0;box-shadow:0 -2px 8px #0000000d;position:fixed;bottom:0;left:0;right:0;z-index:100}.footer-left{display:flex;align-items:center;gap:8px}.user-avatar{width:40px;height:40px}.footer-right{display:flex;align-items:center;gap:16px}.interaction-button{display:flex;align-items:center;gap:4px;font-size:14px;color:#666;padding:4px 8px;border-radius:4px;transition:all .3s ease}.interaction-button:hover{background-color:#f5f5f5;color:#1890ff}.interaction-button.liked{color:#ff4d4f}.interaction-button.favorited{color:#faad14}.button-text{font-size:14px}.question-list-page{display:flex;flex-direction:column;height:100vh;width:100%;overflow:hidden;background-color:#f5f5f5}.question-list-container{display:flex;flex-direction:column;min-height:100vh;background-color:#f5f5f5}.question-list-container.full-page{height:100vh;width:100%;overflow:hidden;position:relative;background-color:#f5f5f5}.question-list-main{flex:1;overflow-y:auto;padding-bottom:60px}.question-list-main::-webkit-scrollbar{width:6px}.question-list-main::-webkit-scrollbar-track{background:#f1f1f1}.question-list-main::-webkit-scrollbar-thumb{background:#ccc;border-radius:3px}.question-list-main::-webkit-scrollbar-thumb:hover{background:#999}@media(max-width:768px){.question-list-header{padding:10px 12px}.header-title{font-size:16px}.question-list-container,.question-item{padding:12px}.question-title{font-size:14px}.question-desc{font-size:13px}.question-list-footer{padding:10px 12px}.footer-right{gap:12px}}.question-header{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background-color:#fff;border-bottom:1px solid #f0f0f0;box-shadow:0 2px 8px #0000000d}.header-left{display:flex;align-items:center;gap:12px}.back-button{font-size:20px;color:#333}.header-title{margin:0;font-size:18px;font-weight:600;color:#333}.header-right{display:flex;align-items:center}.menu-button{font-size:20px;color:#333}@media(max-width:768px){.question-header{padding:10px 12px}.header-title{font-size:16px}}.question-title{margin:0 0 24px;font-size:18px;font-weight:600;color:#333;line-height:1.5;padding:16px;background-color:#f9f9f9;border-radius:8px;border-left:4px solid #1890ff}.ant-collapse{margin-bottom:24px;border:none;background:none}.ant-collapse-item{border:none;box-shadow:none;background:none}.ant-collapse-item:not(:last-child){margin-bottom:12px}.ant-collapse>.ant-collapse-item{border-bottom:none}.ant-collapse-content{border:none;background:none}.panel-header{display:flex;justify-content:space-between;align-items:center;font-size:16px;font-weight:500;cursor:pointer;padding:12px 16px;background-color:#f5f5f5;border-radius:8px;transition:all .3s ease}.panel-header:hover{background-color:#e6f7ff}.ant-collapse-content-box{padding:16px;border:1px solid #f0f0f0;border-top:none;border-radius:0 0 8px 8px}.answer-section,.analyse-section,.summary-section{margin-bottom:20px;padding:12px;background-color:#fafafa;border-radius:4px}.answer-section h5,.analyse-section h5,.summary-section h5{margin:0 0 8px;font-size:15px;font-weight:500;color:#1890ff}.answer-section p,.analyse-section p,.summary-section p{margin:0;font-size:14px;color:#666;line-height:1.6}@media(max-width:768px){.question-content{padding:12px}.question-title{font-size:16px;padding:12px}.panel-header{font-size:15px;padding:10px 14px}.ant-collapse-content-box{padding:14px}.answer-section,.analyse-section,.summary-section{padding:10px}}.comment-section{padding:8px 16px;background-color:#fff;margin-top:1px}.comment-panel-header{display:flex;justify-content:space-between;align-items:center;font-size:16px;font-weight:500;cursor:pointer;padding:12px 16px;background-color:#f5f5f5;border-radius:8px;transition:all .3s ease}.comment-panel-header:hover{background-color:#e6f7ff}.ant-collapse-content-box{padding:16px 8px;border:1px solid #f0f0f0;border-top:none;border-radius:0 0 8px 8px}.comment-item{padding:12px 8px;border-bottom:1px solid #f5f5f5}.comment-item:last-child{border-bottom:none}.comment-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}.user-nickname{font-size:14px;font-weight:500;color:#333}.comment-time{font-size:12px;color:#999}.comment-content{font-size:14px;color:#666;line-height:1.5;margin-bottom:8px}.comment-actions{display:flex;justify-content:flex-end}.comment-actions .ant-btn{font-size:12px;color:#999;padding:0 4px}.comment-actions .ant-btn.liked{color:#ff4d4f}.comment-actions .ant-btn:hover{color:#1890ff}.comment-input-section{padding:8px 16px;background-color:#fff;border-top:1px solid #f0f0f0;display:flex;align-items:center;gap:8px}.comment-input-section .ant-input{border-radius:20px;height:36px;flex:1;border-color:#d9d9d9;transition:all .3s ease}.comment-input-section .ant-input:focus{border-color:#1890ff;box-shadow:0 0 0 2px #1890ff33}.comment-input-section .ant-btn{height:36px;display:flex;align-items:center;justify-content:center;border:none;box-shadow:none;transition:all .3s ease}.comment-input-section .ant-btn.ant-btn-primary{background-color:#1890ff;color:#fff;border-color:#1890ff;width:36px;height:36px;display:flex;align-items:center;justify-content:center}.comment-input-section .ant-btn.ant-btn-primary:hover{background-color:#40a9ff;border-color:#40a9ff}.comment-input-section .ant-btn.ant-btn-primary:disabled{background-color:#f5f5f5;border-color:#d9d9d9;color:#00000040}.comment-input-section .ant-btn.ant-btn-ghost{background-color:transparent;color:#666;border:none}.comment-input-section .ant-btn.ant-btn-ghost:hover{background-color:#0000000a;color:#1890ff}.comment-input-section .ant-btn.liked{color:#ff4d4f}.comment-input-section .ant-btn.liked:hover{background-color:#ff4d4f0a;color:#ff7875}.comment-input-section .ant-btn.starred{color:#faad14}.comment-input-section .ant-btn.starred:hover{background-color:#faad140a;color:#ffc53d}@media(max-width:768px){.comment-section{padding:6px 12px}.comment-panel-header{font-size:15px;padding:10px 14px}.ant-collapse-content-box{padding:12px 6px}.comment-item{padding:10px 6px}.comment-input-section{padding:6px 12px;gap:4px}.comment-input-section .ant-input{height:32px;font-size:12px}.comment-input-section .ant-btn{height:32px;width:32px;padding:0}.comment-input-section .ant-btn-primary{width:32px}}.question-page{display:flex;flex-direction:column;height:100vh;width:100%;overflow:hidden;background-color:#f5f5f5}.question-content{flex:1;overflow-y:auto;padding:16px;background-color:#fff}@media(max-width:768px){.question-content{padding:12px}}.search-header{display:flex;align-items:center;justify-content:space-between;padding:16px 0;border-bottom:1px solid #eee;background-color:#fff}.back-button{width:40px;height:40px;border-radius:50%;border:none;background-color:#f5f5f5;color:#333;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background-color .2s}.back-button:hover{background-color:#e0e0e0}.search-title{margin:0;font-size:18px;font-weight:500;color:#333}.header-right{width:40px}@media(max-width:768px){.search-header{padding:12px 0}.search-title{font-size:16px}}.search-suggestions{position:absolute;top:100%;left:0;right:0;background-color:#fff;border-radius:8px;box-shadow:0 4px 12px #00000026;margin-top:8px;z-index:1000}.suggestion-item{display:flex;align-items:center;padding:12px 16px;cursor:pointer;transition:background-color .2s}.suggestion-item:hover{background-color:#f5f5f5}.suggestion-icon{color:#999;margin-right:8px}.suggestion-text{color:#333;font-size:14px}@media(max-width:768px){.search-input{font-size:14px}.suggestion-item{padding:10px 14px}.suggestion-text{font-size:13px}}.search-history{margin-bottom:24px}.history-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.history-title{display:flex;align-items:center;font-size:14px;font-weight:500;color:#666}.history-icon{margin-right:4px;color:#999}.clear-all-button{font-size:12px;color:#999}.history-tags{display:flex;flex-wrap:wrap;gap:12px}.history-tag-item{display:flex;align-items:center;gap:4px}.history-tag{cursor:pointer;transition:all .2s;background-color:#f5f5f5;border-color:#e0e0e0;color:#333}.history-tag:hover{background-color:#e8f5e9;border-color:#c8e6c9;color:#4caf50}.clear-item-button{font-size:12px;color:#999;padding:0;width:20px;height:20px;display:flex;align-items:center;justify-content:center}.clear-item-button:hover{color:#ff4757}@media(max-width:768px){.search-history{margin-bottom:20px}.history-tags{gap:10px}}.hot-search{margin-bottom:24px}.hot-header{display:flex;align-items:center;font-size:14px;font-weight:500;color:#666;margin-bottom:12px}.hot-icon{margin-right:4px;color:#ff4757}.hot-tags{display:flex;flex-direction:column;gap:10px}.hot-tag{display:flex;align-items:center;padding:8px 12px;cursor:pointer;transition:all .2s;border-radius:20px;border:1px solid #e0e0e0;background-color:#fff}.hot-tag:hover{background-color:#e8f5e9;border-color:#c8e6c9;color:#4caf50}.tag-rank{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:50%;margin-right:8px;font-size:12px;font-weight:500;background-color:#f0f0f0;color:#666}.hot-tag.rank-1 .tag-rank{background-color:#ff4757;color:#fff}.hot-tag.rank-2 .tag-rank{background-color:#ffa502;color:#fff}.hot-tag.rank-3 .tag-rank{background-color:gold;color:#fff}.tag-text{flex:1;font-size:14px}.tag-count{font-size:12px;color:#999;background-color:#f5f5f5;padding:2px 6px;border-radius:10px}@media(max-width:768px){.hot-search{margin-bottom:20px}.hot-tag{padding:6px 10px}.tag-text{font-size:13px}.tag-count{font-size:11px}}.search-results-container{background-color:#fff;border-radius:8px;padding:16px;margin-top:16px;margin-bottom:0;box-shadow:0 2px 8px #0000001a;flex-grow:1;height:calc(100vh - 200px);overflow-y:auto;overflow-x:hidden;position:relative}.results-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:8px;border-bottom:1px solid #eee}.results-title{margin:0;font-size:16px;font-weight:500;color:#333}.results-count{font-size:14px;color:#999}.results-list{min-height:200px;overflow:hidden}.waterfall-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.waterfall-item{break-inside:avoid}.no-results{text-align:center;padding:40px 0;color:#999}@media(max-width:768px){.search-results-container{padding:12px;margin-top:12px}.results-header{margin-bottom:12px}.results-title{font-size:15px}.results-count{font-size:13px}.waterfall-grid{grid-template-columns:1fr;gap:16px}}.search-content-container{padding:0 16px;min-height:100vh;background-color:#f5f5f5;margin-bottom:0}.search-content-container.full-page{margin:0;padding:0;min-height:100vh;width:100%;overflow-x:hidden;display:flex;flex-direction:column}.search-area{margin-top:16px;border:none;padding:0 16px;display:flex;flex-direction:column;justify-content:center;align-items:center;width:100%;flex-shrink:0;margin-bottom:0}.search-suggestions{margin-top:16px;width:100%;max-width:600px;flex-shrink:0}@media(max-width:768px){.search-content-container{padding:0 12px}.search-area{padding:12px}}