.question-text-preview{margin-bottom:10px;max-height:150px;overflow-y:auto;padding:10px;background-color:rgba(240,240,240,.5);border-radius:5px;font-size:.9rem}.options-container{display:flex;flex-direction:column;gap:10px;margin-top:10px}.option-item{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:6px;transition:background-color .2s}.option-item:hover{background-color:rgba(0,0,0,.02)}.option-item input[type=checkbox]{accent-color:var(--primary-color);width:18px;height:18px}.option-item label{cursor:default;flex:1;font-size:.9rem}.option-item.correct-answer{background-color:rgba(46,204,113,.15);border-left:4px solid #27ae60;border-radius:4px;margin:2px 0;padding:8px 12px}.exam-card{display:flex;flex-direction:column;height:100%;min-height:300px;transition:.3s}.card-body{display:flex;flex-direction:column;height:100%}.question-content{flex:1;overflow:hidden}.detail-options{max-width:700px}.detail-options .option-item{padding:12px 15px;margin-bottom:5px}.detail-options .option-item label{font-size:1rem}.detail-options .option-item input[type=checkbox]{width:20px;height:20px}.announcement-card{border:none;border-radius:16px;box-shadow:0 6px 16px rgba(0,0,0,.08);transition:.3s;overflow:hidden;background:linear-gradient(135deg,#fff,#f8f9fa);display:flex;flex-direction:column;height:100%;position:relative}.announcement-card:hover{transform:translateY(-8px);box-shadow:0 12px 24px rgba(0,0,0,.12)}.announcement-card::before{content:'';position:absolute;top:0;left:0;width:4px;height:100%;background:linear-gradient(to bottom,var(--primary-color),var(--accent-color));opacity:1;transition:opacity .3s,width .3s}.announcement-card:hover::before{width:6px}.announcement-card-header{display:flex;align-items:center;padding:20px;border-bottom:1px solid rgba(0,0,0,.05);position:relative}.announcement-icon{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff;width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-right:15px;font-size:1.2rem;box-shadow:0 4px 8px rgba(0,0,0,.1)}.announcement-title-container{flex:1;overflow:hidden}.announcement-title{margin:0;font-weight:600;font-size:1.1rem;line-height:1.3;color:var(--text-color)}.announcement-date{font-size:.8rem;color:#666;display:block;margin-top:3px}.announcement-actions{display:flex;gap:8px}.btn-icon{width:34px;height:34px;border-radius:50%;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:.2s;background:rgba(0,0,0,.05);color:#666}.btn-icon:hover{background:rgba(0,0,0,.1);color:var(--text-color);transform:translateY(-2px)}.edit-question:hover{background:rgba(243,156,18,.2);color:#d35400}.delete-question:hover{background:rgba(231,76,60,.2);color:#c0392b}.announcement-card-body{padding:20px;flex:1;display:flex;flex-direction:column}.announcement-content{flex:1;max-height:120px;overflow-y:auto;position:relative;margin-bottom:15px}.announcement-content .question-text-preview{margin-bottom:10px;font-size:.98rem;color:#555}.announcement-footer{display:flex;justify-content:flex-end;padding-top:10px;border-top:1px dashed rgba(0,0,0,.1)}.announcement-badge{padding:5px 12px;border-radius:30px;font-size:.8rem;background-color:rgba(23,162,184,.1);color:var(--info-color);display:inline-flex;align-items:center;gap:5px}.announcement-card .options-container{margin-top:8px;margin-bottom:0}.announcement-card .option-item{background:0 0;border-left:none;padding:6px 0;font-size:.95rem}.announcement-card .option-item.correct-answer{background-color:rgba(46,204,113,.15);border-left:4px solid #27ae60;border-radius:4px;margin:2px 0;padding:8px 12px;color:#2d5a3d;font-weight:500}.announcement-card .question-image,.announcement-card .question-image-slider{margin-top:10px;margin-bottom:10px}.announcement-card .slider-arrow{cursor:pointer;color:var(--primary-color);font-size:1.1rem;padding:2px 8px;border-radius:50%;background:#f1f3f5;margin:0 2px;transition:background .2s}.announcement-card .slider-arrow:hover{background:#e0e7ef}.announcement-card .slider-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#ccc;margin:0 2px;cursor:pointer}.announcement-card .slider-dot.active{background:var(--primary-color)}.option-item.correct-answer input[type=checkbox]{accent-color:#27ae60;transform:scale(1.1)}.option-item.correct-answer label{color:#2d5a3d;font-weight:500}.option-item.correct-answer:hover{background-color:rgba(46,204,113,.25);border-left-color:#1e8449}