/* 题目列表页样式 */

/* 面包屑导航样式 */
.breadcrumb-wrapper {
  background-color: #f8f9fa;
  padding: 10px 0;
  margin-bottom: 0;
}

.breadcrumb {
  background-color: #f8f9fa;
  padding: 0;
  margin: 0;
}

.breadcrumb-item a {
  color: var(--primary-color);
  text-decoration: none;
}

.breadcrumb-item a:hover {
  text-decoration: underline;
}

.breadcrumb-item.active {
  color: #6c757d;
}

/* 左右栏间隔修复 */
@media (min-width: 768px) {
  .col-md-3 {
    padding-right: 15px;
  }
  
  .col-md-9 {
    padding-left: 15px;
  }
}

/* 筛选区域 */
.filter-section {
  background: linear-gradient(to bottom, var(--data-bg) 0%, #f0f4f9 100%);
  border-radius: 10px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.filter-title {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
  display: flex;
  align-items: center;
}

.filter-title i {
  margin-right: 10px;
}

.filter-group h4 {
  font-size: 1.1rem; /* 调整筛选条件标题字体 */
  margin-bottom: 0.8rem;
  color: #333;
}

.filter-options {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 1.2rem;
}

.filter-options a {
  text-decoration: none;
}

.filter-btn {
  background-color: #f1f4f8;
  border: none;
  border-radius: 12px; /* 减小圆角 */
  padding: 6px 12px; /* 调整padding */
  font-size: 1rem; /* 调整按钮字体 */
  cursor: pointer;
  transition: all 0.2s ease;
  color: #666; /* 设置未选中按钮文字颜色 */
  text-decoration: none; /* 去除下划线 */
}

.filter-btn:hover,
.filter-btn.active {
  background-color: var(--primary-color);
  color: white;
  text-decoration: none; /* 去除下划线 */
}

/* 题目列表区域 */
.questions-section {
  background: linear-gradient(to bottom, var(--data-bg) 0%, #f0f4f9 100%);
  border-radius: 10px;
  padding: 2rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  margin-bottom: 1.5rem;
  border: 1px solid var(--tech-border);
  transition: all 0.3s ease;
}

.questions-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem; /* 增大margin */
  flex-wrap: wrap;
  gap: 10px;
}

.questions-title {
  font-size: 1.5rem; /* 增大标题字体 */
  color: #333;
  margin: 0;
}

.results-info {
  color: #666;
  font-size: 1rem; /* 增大信息字体 */
}

.question-list {
  list-style: none;
}

.question-item {
  padding: 1.5rem;
  border-bottom: 1px solid #eee;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  background: linear-gradient(to right, rgba(255,255,255,0.8) 0%, rgba(255,255,255,0.6) 100%);
  border-radius: 5px;
  margin-bottom: 10px;
}

.question-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.question-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--primary-color);
  transform: scaleY(0);
  transition: transform 0.3s ease;
}

.question-item:hover::before {
  transform: scaleY(1);
}

/* 题目标签样式 */
.question-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #eee;
}

.tag-item {
  display: flex;
  align-items: center;
  color: #666;
  font-size: 1.1rem; /* 增大标签字体 */
}

.tag-item i {
  margin-right: 5px;
  color: var(--primary-color);
  font-size: 0.9rem;
}

.question-meta {
  display: none; /* 隐藏旧的标签样式 */
}

.meta-item {
  display: flex;
  align-items: center;
  color: #666;
}

.meta-item i {
  margin-right: 5px;
  color: var(--primary-color);
  font-size: 0.9rem; /* 增大图标大小 */
}

.question-content {
  margin-bottom: 1.2rem;
  line-height: 1.7;
}

.question-snippet {
  color: #333;
  margin-bottom: 1.2rem;
  font-size: 1.3rem;
  font-weight: 500;
  line-height: 1.6;
}

.question-actions {
  display: flex;
  gap: 8px; /* 减小gap */
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

.btn-question {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px; /* 减小按钮padding */
  border-radius: 4px;
  font-size: 0.9rem; /* 减小按钮字体 */
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-question i {
  font-size: 0.8rem; /* 减小图标大小 */
}

.btn-detail {
  background-color: var(--primary-color);
  color: white;
  border: 1px solid var(--primary-color);
}

.btn-detail:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
}

.btn-favorite {
  background-color: #f1f4f8;
  color: #666;
  border: 1px solid #ddd;
}

.btn-favorite:hover,
.btn-favorite.favorited {
  background-color: #fff3cd;
  color: #856404;
  border-color: #ffeeba;
}

/* 分页 */
.pagination-wrapper {
  margin-top: 1.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid #eee;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .filter-options {
    gap: 8px;
  }
  
  .filter-btn {
    padding: 8px 15px;
    font-size: 1.0rem;
  }
  
  .question-tags {
    gap: 10px;
    font-size: 1.0rem;
  }
  
  .question-content {
    margin-bottom: 0.8rem;
  }
  
  .question-snippet {
    font-size: 1.1rem;
  }
  
  .question-actions {
    gap: 6px;
  }
  
  .btn-question {
    padding: 5px 10px;
    font-size: 0.85rem;
  }
  
  .btn-question i {
    font-size: 0.7rem;
  }
  
  /* 在移动端，筛选区域占满整行 */
  .col-12 {
    flex: 0 0 100%;
    max-width: 100%;
  }
  
  /* 在移动端，题目列表区域也占满整行 */
  .col-md-9 {
    flex: 0 0 100%;
    max-width: 100%;
    padding-left: 15px;
    padding-right: 15px;
  }
}

@media (max-width: 576px) {
  .filter-section,
  .questions-section {
    padding: 1.2rem;
  }
  
  .questions-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .question-item {
    padding: 1rem 0;
  }
  
  .question-tags {
    gap: 8px;
    font-size: 1.0rem;
  }
  
  .question-actions {
    width: 100%;
    justify-content: flex-end;
  }
  
  .filter-group h4 {
    font-size: 1.2rem;
  }
  
  .questions-title {
    font-size: 1.3rem;
  }
}