/* ==================== 响应式 Grid 布局 ==================== */

/* 父容器：使用 CSS Grid */
.main_content {
  display: grid;
  gap: 20px;
  padding: 20px;
  width: 100%;
  box-sizing: border-box;
}

/* 大屏幕（≥ 1200px）：三列并排 */
@media (min-width: 1200px) {
  .main_content {
    grid-template-columns: 1.5fr 1fr 2.5fr;  /* 论文列表(20%) 上传文件(30%) 描述详情(50%) */
    grid-template-areas: "papers upload description";
  }
  
  .right_content {
    grid-area: papers;
  }
  
  .left_content {
    grid-area: upload;
  }
  
  .description_content {
    grid-area: description;
  }
}

/* 中等屏幕（768px - 1199px）：论文列表和上传文件并排，描述详情在下方 */
@media (min-width: 768px) and (max-width: 1199px) {
  .main_content {
    grid-template-columns: 1fr 1fr;  /* 两列等宽 */
    grid-template-areas: 
      "papers upload"
      "description description";  /* 描述详情占满整行 */
  }
  
  .right_content {
    grid-area: papers;
  }
  
  .left_content {
    grid-area: upload;
  }
  
  .description_content {
    grid-area: description;
  }
}

/* 小屏幕（< 768px）：全部垂直堆叠 */
@media (max-width: 767px) {
  .main_content {
    grid-template-columns: 1fr;  /* 单列 */
    grid-template-areas: 
      "papers"
      "upload"
      "description";
    padding: 10px;  /* 小屏幕减少外边距 */
    gap: 15px;
  }
  
  .right_content {
    grid-area: papers;
  }
  
  .left_content {
    grid-area: upload;
  }
  
  .description_content {
    grid-area: description;
  }
  
  /* 小屏幕优化：减少内边距 */
  .left_content,
  .right_content {
    padding: 20px !important;
  }
  
  /* 小屏幕优化：调整上传区域高度 */
  .upload_area {
    height: 200px !important;
  }
  
  /* 小屏幕优化：调整提交按钮位置 */
  .submit_btn {
    margin-top: 20px !important;
  }
}

/* 子元素通用样式 */
.left_content,
.right_content {
  padding: 36px;
  box-sizing: border-box;
  min-width: 0;  /* 防止内容溢出 */
}

.upload_area {
  width: 100%;
  height: 300px;
  border-radius: 12px 12px 12px 12px;
  background-color: rgba(255, 255, 255, 1);
  border: 1px dashed rgba(204, 204, 204, 1);
  text-align: center;
  margin: 20px 0;
}

.upload_content .custom-btn {
  position: relative;
  width: 120px;
  height: 39px;
  background-color: rgba(64, 150, 255, 1);
  border-radius: 8px;
  color: white;
  cursor: pointer;
  border: none;
}

.upload_content p {
  margin: 10% 0;

}

.upload_content .native-input {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.main_content h1 {
  font-size: 20px;
}


/* .right_content button {
  color: #fff;
  padding: 0 20px;
  height: 44px;
  border-radius: 8px 8px 8px 8px;
  background-color: rgba(255, 125, 0, 1);
  font-size: 16px;
  border: none;
  position: fixed;
  bottom: 30px;
  right: 30px;
  cursor: pointer;
} */


.config_section {
  margin: 20px 0;
  padding: 15px;
  border: 1px solid #ddd;
  border-radius: 8px;
  background-color: #f9f9f9;
}

.config_section h2 {
  margin-top: 0;
  color: #333;
  font-size: 18px;
  border-bottom: 1px solid #eee;
  padding-bottom: 10px;
}

.config_item {
  margin: 12px 0;
  display: flex;
  align-items: center;
}

.config_item label {
  margin-right: 10px;
  font-weight: 500;
  min-width: 100px;
}

.config-select, .config-input {
  padding: 6px 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 14px;
}

.config-select {
  min-width: 150px;
}

.config-input {
  width: 80px;
}

.config_item input[type="checkbox"] {
  margin-right: 8px;
  transform: scale(1.2);
}

.submit_btn {
  width: 100%;
  height: 44px;
  border-radius: 8px 8px 8px 8px;
  background-color: rgba(64, 150, 255, 1);
  font-size: 16px;
  border: none;
  cursor: pointer;
  color: #fff;
  margin-top: 253px;
}

.search_content button {
  width: 100px;
  height: 36px;
  border-radius: 8px 8px 8px 8px;
  background-color: rgba(64, 150, 255, 1);
  font-size: 16px;
  border: none;
  cursor: pointer;
  color: #fff;
  float: right;
}

.table_content .detail_btn {
  width: 100px;
  height: 36px;
  border-radius: 8px 8px 8px 8px;
  background-color: rgba(64, 150, 255, 1);
  font-size: 16px;
  border: none;
  cursor: pointer;
  color: #fff;
}

/* 拖入上传样式 */
#dropArea {
  position: relative;
}

#dropArea.drag-over {
  border: 2px dashed #007bff !important;
  background-color: #f8f9fa !important;
}

#dropArea::before {
  content: "拖拽文件到此处上传";
  display: none;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #007bff;
  font-weight: bold;
  z-index: 10;
}

#dropArea.drag-over::before {
  display: block;
}

#dropArea.drag-over .upload_content {
  opacity: 0.3;
}
#downloadBtn {
  height: 39px;
  background-color: rgba(64, 150, 255, 1);
  border-radius: 8px;
  float: right;
  border: none;
  color: #fff;
  padding: 0 20px;
  margin-top: 20px;
  cursor: pointer;
}