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16px;border-radius:6px;cursor:pointer;font-size:13px;font-weight:500;display:flex;align-items:center;gap:6px;transition:all .2s ease}.share-key-copy-btn:hover{background-color:#1d4ed8;transform:translateY(-1px)}.share-key-copy-btn:active{transform:translateY(0)}@media (max-width: 480px){.share-key-bar{flex-direction:column;align-items:stretch}.share-key-copy-btn{justify-content:center}}.community-container{width:100%;max-width:1400px;margin:0 auto;padding:20px}.community-header{text-align:center;margin-bottom:40px;padding:20px;background:linear-gradient(135deg,#1a202c,#2d3748);border-radius:16px;color:#fff}.community-header h2{font-size:4rem;margin-bottom:10px;font-weight:500}.community-total{display:inline-block;margin-top:12px;padding:4px 12px;background-color:#fff3;border-radius:20px;font-size:.85rem}.community-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:400px;color:#666}.loading-spinner{width:40px;height:40px;border:3px solid #e2e8f0;border-top-color:#2272c3;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:16px}@keyframes spin{to{transform:rotate(360deg)}}.community-error{background-color:#fed7d7;color:#c53030;padding:15px 20px;border-radius:10px;margin:20px 0;text-align:center}.community-empty{text-align:center;padding:80px 20px;background-color:#f7fafc;border-radius:16px;margin:40px 0}.empty-icon{font-size:80px;margin-bottom:20px}.community-empty h3{font-size:1.5rem;color:#2d3748;margin-bottom:10px}.community-empty p{color:#718096;margin-bottom:30px}.empty-cta{background-color:#2272c3;color:#fff;border:none;padding:12px 32px;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease}.empty-cta:hover{background-color:#1e5ea8;transform:translateY(-2px)}.community-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:40px}.community-card{background:#fff;border-radius:16px;box-shadow:0 4px 12px #0000001a;overflow:hidden;transition:all .3s ease;display:flex;flex-direction:column}.community-card:hover{transform:translateY(-4px);box-shadow:0 12px 24px #00000026}.card-header{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;background-color:#f7fafc;border-bottom:1px solid #e2e8f0}.card-creator{display:flex;align-items:center;gap:6px;font-size:.8rem}.creator-icon{font-size:.9rem}.creator-name{font-weight:500;color:#2d3748}.card-date{font-size:.7rem;color:#a0aec0}.card-title{padding:16px 16px 8px}.card-title h3{font-size:1.1rem;font-weight:600;color:#1a202c;margin:0;line-height:1.4;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.card-badge{padding:0 16px 8px}.badge{display:inline-block;background-color:#e6f7ff;color:#2272c3;padding:4px 10px;border-radius:20px;font-size:.7rem;font-weight:600}.card-preview{padding:0 16px 12px;flex:1}.card-preview p{font-size:.85rem;color:#4a5568;line-height:1.5;margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.card-tags{padding:0 16px 12px;display:flex;flex-wrap:wrap;gap:6px}.tag{display:inline-block;padding:3px 8px;border-radius:12px;font-size:.7rem;font-weight:500}.tag-programming{background-color:#ffefd5;color:#dc143c}.tag-ds{background-color:#dcfce7;color:#166534}.card-expand-btn{margin:8px 16px 16px;padding:8px 12px;background-color:#f1f5f9;border:none;border-radius:8px;font-size:.8rem;font-weight:500;color:#475569;cursor:pointer;transition:all .2s ease}.card-expand-btn:hover{background-color:#e2e8f0}.card-details{padding:0 16px 16px;border-top:1px solid #e2e8f0;margin-top:4px;background-color:#fafafa}.detail-section{margin-top:12px}.detail-section h4{font-size:1rem;font-weight:760;color:#475569;margin-bottom:6px;text-transform:uppercase;letter-spacing:.5px}.full-description{font-size:.8rem;color:#334155;line-height:1.5;margin:0}.preview-list{display:flex;flex-direction:column;gap:6px}.preview-item{font-size:.75rem;padding:4px 8px;background-color:#f1f5f9;border-radius:6px}.preview-index{font-weight:600;color:#2272c3;margin-right:6px}.preview-title{color:#334155}.io-info{display:flex;flex-direction:column;gap:6px}.io-item{font-size:.7rem;color:#475569}.io-item strong{color:#2272c3}.example-section pre{background-color:#1e293b;color:#e2e8f0;padding:10px;border-radius:8px;font-size:.7rem;overflow-x:auto;white-space:pre-wrap;font-family:monospace;margin:0}.community-pagination{display:flex;justify-content:center;align-items:center;gap:20px;padding:20px 0;border-top:1px solid #e2e8f0;margin-top:20px}.pagination-btn{padding:8px 20px;background-color:#2272c3;color:#fff;border:none;border-radius:8px;font-size:.85rem;font-weight:500;cursor:pointer;transition:all .2s ease}.pagination-btn:hover:not(:disabled){background-color:#1e5ea8;transform:translateY(-1px)}.pagination-btn:disabled{background-color:#cbd5e0;cursor:not-allowed}.pagination-info{font-size:.85rem;color:#4a5568}@media (max-width: 1200px){.community-grid{grid-template-columns:repeat(2,1fr);gap:20px}}@media (max-width: 768px){.community-grid{grid-template-columns:1fr;gap:16px}.community-header h2{font-size:1.5rem}.community-header p{font-size:.85rem}.card-title h3{font-size:1rem}}@media (max-width: 480px){.community-container{padding:12px}.community-pagination{gap:10px}.pagination-btn{padding:6px 14px;font-size:.75rem}}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000}.modal-content{background:#fff;border-radius:12px;padding:30px;min-width:400px;box-shadow:0 10px 30px #0000004d}.modal-content h3{margin-top:0;color:#2d3748;font-size:24px;margin-bottom:20px}.modal-option-btn{width:100%;padding:15px;margin-bottom:10px;border:2px solid #2272C3;background:#fff;color:#2272c3;border-radius:8px;font-size:16px;cursor:pointer;display:flex;align-items:center;gap:10px;transition:all .3s}.modal-option-btn:hover{background:#2272c3;color:#fff}.modal-close-btn{width:100%;padding:10px;margin-top:10px;border:none;background:#e2e8f0;color:#4a5568;border-radius:8px;font-size:14px;cursor:pointer}.modal-note{font-size:12px;color:#718096;font-style:italic;margin-top:15px}.share-button{background:#60a5fa;padding:10px 20px;border:none;border-radius:5px;cursor:pointer;font-size:1.4rem;font-weight:500;color:#fff}.share-button:hover{background:#1d4ed8}.abandon-button{background:#f56565;padding:10px 20px;border:none;border-radius:5px;cursor:pointer;font-size:1.4rem;font-weight:500;color:#fff}.abandon-button:hover{background:#e53e3e}.action-buttons-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px;padding:15px;background:#f7fafc;border-radius:8px}.btn-publish{background:#48bb78;color:#fff;border:none;padding:8px 16px;border-radius:6px;cursor:pointer;display:flex;align-items:center;gap:5px;font-size:14px}.btn-publish:hover{background:#38a169}.clickable-card{cursor:pointer;transition:transform .2s ease,box-shadow .2s ease}.clickable-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #00000026}.community-card{-webkit-user-select:none;user-select:none}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#000000b3;display:flex;justify-content:center;align-items:center;z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.community-modal-content{background-color:#f7fafc;border-radius:16px;width:90%;max-width:1200px;max-height:85vh;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 20px 40px #0000004d}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;border-bottom:1px solid #e2e8f0;background-color:#fff}.modal-header h3{margin:0;color:#2d3748;font-size:1.5rem}.modal-close-icon{background:none;border:none;cursor:pointer;color:#718096;display:flex;align-items:center;justify-content:center;padding:8px;border-radius:8px;transition:all .2s ease}.modal-close-icon:hover{background-color:#edf2f7;color:#2d3748}.modal-close-icon .material-icons{font-size:24px}.modal-body{flex:1;overflow-y:auto;padding:24px;background-color:#f7fafc}.modal-body::-webkit-scrollbar{width:8px}.modal-body::-webkit-scrollbar-track{background:#edf2f7;border-radius:4px}.modal-body::-webkit-scrollbar-thumb{background:#cbd5e0;border-radius:4px}.modal-body::-webkit-scrollbar-thumb:hover{background:#a0aec0}.modal-body .detail-section{margin-bottom:32px}.modal-body .detail-section h4{color:#2d3748;margin-bottom:16px;font-size:1.1rem;font-weight:600}.modal-body .detail-section h6{color:#4a5568;margin-bottom:12px;font-size:.9rem;font-weight:600}.modal-body .base-question-card,.modal-body .generated-question-card{background-color:#fff;border:1px solid #e2e8f0;border-radius:12px;margin-bottom:16px;overflow:hidden}.modal-body .generated-question-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;cursor:pointer;background-color:#f7fafc;transition:background-color .2s ease}.modal-body .generated-question-header:hover{background-color:#edf2f7}.modal-body .generated-question-header h5{margin:0;color:#2d3748;font-size:1rem;font-weight:600}.modal-body .section-chevron{color:#a0aec0;font-size:12px}.modal-body .generated-question-content{padding:20px;border-top:1px solid #e2e8f0;background-color:#fff}.modal-body .sub-section{margin-bottom:20px}.modal-body .sub-section:last-child{margin-bottom:0}.modal-body .detail-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}.modal-body .detail-item{margin-bottom:12px}.modal-body .detail-item strong{display:block;color:#718096;font-size:.8rem;margin-bottom:4px;font-weight:600}.modal-body .detail-value{color:#2d3748;font-size:.9rem;line-height:1.4}.modal-body .detail-value.code{font-family:monospace;background-color:#edf2f7;padding:8px 12px;border-radius:8px;overflow-x:auto;font-size:.8rem;color:#2d3748}.modal-body .task-list{margin:8px 0 0 20px;padding:0}.modal-body .task-list li{color:#4a5568;margin-bottom:4px}.modal-body .static-elements-container{display:flex;flex-wrap:wrap;gap:8px}.modal-body .static-tag{background-color:#edf2f7;color:#4299e1;padding:4px 12px;border-radius:20px;font-size:.8rem}.modal-body .action-buttons-bar{display:flex;justify-content:flex-start;gap:12px;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid #e2e8f0}.modal-body .export-button{display:flex;align-items:center;gap:8px;background-color:#4299e1;color:#fff;border:none;padding:8px 20px;border-radius:8px;cursor:pointer;font-size:14px;font-weight:500;transition:background-color .2s ease}.modal-body .export-button:hover{background-color:#3182ce}.modal-body .export-button .material-icons{font-size:18px}.modal-body .share-key-bar{display:flex;justify-content:space-between;align-items:center;background-color:#fff;padding:12px 16px;border-radius:8px;margin-bottom:24px;border:1px solid #e2e8f0}.modal-body .share-key-info{display:flex;align-items:center;gap:12px}.modal-body .share-key-label{color:#718096;font-size:.85rem;font-weight:500}.modal-body .share-key-code{background-color:#edf2f7;padding:4px 12px;border-radius:6px;font-family:monospace;color:#4299e1;font-size:.85rem}.modal-body .share-key-copy-btn{background-color:#edf2f7;color:#4a5568;border:none;padding:6px 16px;border-radius:6px;cursor:pointer;font-size:.8rem;font-weight:500;transition:background-color .2s ease}.modal-body .share-key-copy-btn:hover{background-color:#e2e8f0;color:#2d3748}.modal-body .base-question-title,.modal-body .generated-question-title{color:#2d3748;font-size:1.1rem;font-weight:600;margin-bottom:12px}} .community-search-bar{display:flex;justify-content:center;gap:12px;margin-bottom:30px;max-width:600px;margin-left:auto;margin-right:auto}.community-search-input{flex:1;padding:12px 16px;font-size:16px;border-radius:8px;border:1px solid #e2e8f0;background-color:#fff;transition:all .3s ease;outline:none}.community-search-input:focus{border-color:#4299e1;box-shadow:0 0 0 3px #4299e133}.community-search-btn{background-color:#4299e1;color:#fff;border:none;padding:12px 24px;border-radius:8px;cursor:pointer;font-size:16px;font-weight:500;transition:background-color .2s ease}.community-search-btn:hover:not(:disabled){background-color:#3182ce}.community-search-btn:disabled{background-color:#a0aec0;cursor:not-allowed}.community-reset-btn{background-color:#e2e8f0;color:#4a5568;border:none;padding:12px 20px;border-radius:8px;cursor:pointer;font-size:14px;font-weight:500;transition:all .2s ease}.community-reset-btn:hover{background-color:#cbd5e0;color:#2d3748}.community-search-info{text-align:center;color:#718096;font-size:14px;margin-bottom:20px;padding:8px 16px;background-color:#edf2f7;border-radius:8px;display:inline-block;width:auto;margin-left:auto;margin-right:auto}.community-search-no-results{text-align:center;color:#718096;font-size:16px;margin-top:60px;padding:40px}