/* ══════════════════════════════════════════════
   论文摘要模态框样式
══════════════════════════════════════════════ */

/* 摘要按钮 - 与PDF标签类似的红色边框样式 */
.abstract-btn {
  display: inline-block;
  background-color: transparent;
  color: #dc3545;
  border: 1px solid #dc3545;
  border-radius: 0.25rem;
  padding: 0.2em 0.4em;
  font-size: 0.75em;
  font-weight: 600;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  vertical-align: baseline;
  cursor: pointer;
  margin-left: 0.3rem;
  text-decoration: none;
  transition: all 0.2s ease;
}

.abstract-btn:hover {
  background-color: #dc3545;
  color: #fff;
  text-decoration: none;
}

/* 模态框背景 */
.abstract-modal {
  display: none;
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  animation: fadeIn 0.2s ease;
}

/* 模态框内容 */
.abstract-modal-content {
  background-color: #fff;
  margin: 5% auto;
  padding: 0;
  border-radius: 8px;
  width: 90%;
  max-width: 700px;
  max-height: 80vh;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  animation: slideIn 0.3s ease;
}

/* 模态框头部 */
.abstract-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  background-color: #f8f9fa;
  border-bottom: 1px solid #dee2e6;
}

.abstract-modal-header h4 {
  margin: 0;
  font-size: 1.1rem;
  color: #333;
  font-weight: 600;
  line-height: 1.4;
  padding-right: 1rem;
}

/* 关闭按钮 */
.abstract-modal-close {
  background: none;
  border: none;
  font-size: 1.8rem;
  color: #666;
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: all 0.2s;
  flex-shrink: 0;
}

.abstract-modal-close:hover {
  color: #333;
  background-color: #e9ecef;
}

/* 模态框主体 */
.abstract-modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  max-height: calc(80vh - 70px);
}

.abstract-modal-body p {
  margin: 0;
  line-height: 1.8;
  color: #444;
  font-size: 0.95rem;
  text-align: justify;
}

/* 动画 */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 移动端适配 */
@media screen and (max-width: 768px) {
  .abstract-modal-content {
    width: 95%;
    margin: 10% auto;
    max-height: 85vh;
  }
  
  .abstract-modal-header {
    padding: 0.75rem 1rem;
  }
  
  .abstract-modal-header h4 {
    font-size: 0.95rem;
  }
  
  .abstract-modal-body {
    padding: 1rem;
    max-height: calc(85vh - 60px);
  }
  
  .abstract-modal-body p {
    font-size: 0.9rem;
    line-height: 1.7;
  }
  
  .abstract-btn {
    font-size: 0.8em;
  }
}