*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:#f9fafb;color:#111827}#app{min-height:100vh}.dark body,.dark #app,.dark .home-page,.dark .home-content,.dark .card-grid,.dark .memo-section,.dark .datetime-weather{background-color:#111827!important;color:#e5e7eb!important}.dark .home-header{background-color:#1f2937!important;border-bottom-color:#374151!important}.dark .logo{color:#e5e7eb!important}.dark .title{color:#f9fafb!important}.dark .slogan{color:#9ca3af!important}.dark .search-box{background-color:#374151!important;border-color:#4b5563!important}.dark .search-engine,.dark .search-box input{color:#e5e7eb!important;background:transparent!important}.dark .search-box input::placeholder{color:#9ca3af!important}.dark .btn-settings,.dark .btn-logout{background-color:#374151!important;border-color:#4b5563!important;color:#e5e7eb!important}.dark .username,.dark .section-title{color:#9ca3af!important}.dark .memo-title{color:#f9fafb!important}.dark .section,.dark .card{background-color:#1f2937!important;border-color:#374151!important}.dark .card:hover{border-color:#3b82f6!important}.dark .card-name{color:#e5e7eb!important}.dark .icon-letter{color:#fff!important}.dark .btn-add{background-color:#3b82f6!important;color:#fff!important;border:none!important}.dark .btn-collapse{color:#9ca3af!important;background:transparent!important}.dark .btn-collapse:hover{background-color:#374151!important}.dark .empty-state{background-color:#1f2937!important;color:#9ca3af!important}.dark .empty-text{color:#9ca3af!important}.dark .pinned-section{background-color:#1e3a5f!important;border-color:#f59e0b!important}.dark .memo-section{background-color:#1f2937!important;border-color:#374151!important}.dark .memo-card{background-color:#111827!important;border-color:#374151!important}.dark .memo-card:hover{border-color:#3b82f6!important}.dark .memo-card.selected{border-color:#3b82f6!important;background-color:#1e3a5f!important}.dark .memo-card-title{color:#e5e7eb!important}.dark .memo-card-time{color:#6b7280!important}.dark .memo-card-content{color:#9ca3af!important}.dark .btn-action{background-color:#374151!important;color:#e5e7eb!important}.dark .btn-action:hover{background-color:#4b5563!important}.dark .btn-add{background-color:#3b82f6!important;color:#fff!important}.dark .settings-page{background-color:#111827!important}.dark .settings-header{background-color:#1f2937!important;border-bottom-color:#374151!important}.dark .settings-header h1{color:#f9fafb!important}.dark .settings-section{background-color:#1f2937!important;border-color:#374151!important}.dark .settings-section h2{color:#f9fafb!important;border-bottom-color:#374151!important}.dark .form-group label{color:#d1d5db!important}.dark .form-group input{background-color:#374151!important;border-color:#4b5563!important;color:#e5e7eb!important}.dark .form-group input:focus{border-color:#3b82f6!important}.dark .theme-btn{background-color:#374151!important;border-color:#4b5563!important;color:#d1d5db!important}.dark .theme-btn.active{background-color:#3b82f6!important;border-color:#3b82f6!important;color:#fff!important}.dark .save-success{color:#10b981!important}.dark .login-page{background:linear-gradient(135deg,#1f2937,#111827)!important}.dark .login-container{background-color:#1f2937!important;box-shadow:0 10px 40px #00000080!important}.dark .logo-section h1{color:#f9fafb!important}.dark .logo-section p{color:#9ca3af!important}.dark .login-form .form-group label{color:#d1d5db!important}.dark .login-form input{background-color:#374151!important;border-color:#4b5563!important;color:#e5e7eb!important}.dark .login-form input::placeholder{color:#6b7280!important}.dark .btn-primary{background-color:#3b82f6!important}.dark .switch-link{color:#9ca3af!important}.dark .switch-link a{color:#60a5fa!important}.dark .modal-overlay{background:#000000b3!important}.dark .modal{background-color:#1f2937!important}.dark .modal-header{border-bottom-color:#374151!important}.dark .modal-header h3{color:#f9fafb!important}.dark .btn-close{color:#9ca3af!important}.dark .chat-panel{background-color:#1f2937!important}.dark .panel-header{background-color:#1f2937!important;border-bottom-color:#374151!important}.dark .panel-title{color:#f9fafb!important}.dark .btn-clear,.dark .btn-minimize{background-color:#374151!important;border-color:#4b5563!important;color:#9ca3af!important}.dark .message-list{background-color:#1f2937!important}.dark .empty-chat{color:#9ca3af!important}.dark .message.assistant .message-content{background-color:#374151!important;color:#e5e7eb!important}.dark .quick-commands,.dark .panel-footer{background-color:#1f2937!important;border-top-color:#374151!important}.dark .panel-footer textarea{background-color:#374151!important;border-color:#4b5563!important;color:#e5e7eb!important}.dark .panel-footer textarea:focus{border-color:#3b82f6!important}.dark .btn-send{background-color:#3b82f6!important;color:#fff!important}.dark .review-modal .modal-header{border-bottom-color:#374151!important}.dark .review-modal .modal-body{background-color:#1f2937!important}.dark .review-title{color:#9ca3af!important}.dark .review-card{background-color:#374151!important;border-color:#4b5563!important}.dark .review-card.history{background-color:#1e3a5f!important;border-color:#8b5cf6!important}.dark .review-card-title{color:#e5e7eb!important}.dark .review-card-content{color:#9ca3af!important}.dark .btn-text{color:#60a5fa!important}.dark .btn-random{background-color:#374151!important;color:#e5e7eb!important}.dark .announcement-bar{background-color:#1e3a5f!important;border-color:#3b82f6!important;color:#93c5fd!important}.dark select{background-color:#374151!important;color:#e5e7eb!important;border-color:#4b5563!important}.dark input[type=checkbox]{accent-color:#3B82F6!important}.dark .char-count{color:#6b7280!important}.dark .admin-page{background-color:#111827!important}.dark ::-webkit-scrollbar{width:8px;height:8px}.dark ::-webkit-scrollbar-track{background:#1f2937!important}.dark ::-webkit-scrollbar-thumb{background:#4b5563!important;border-radius:4px!important}.dark ::-webkit-scrollbar-thumb:hover{background:#6b7280!important}