/* 全站统一主题色 - 覆盖所有红色为蓝色 */
:root {
  --main-color: #2574cc;
  --main-color-dark: #1e5ba3;
  --main-color-light: rgba(37, 116, 204, 0.1);
}

/* 所有红色按钮/元素统一改成蓝色 */
.btn-red,
.btn-primary,
button[type="submit"],
.faq-item.active .faq-question,
.float-btn,
.pagination .active,
.tag.active,
.nav-link.active,
.service-card:hover .btn,
.case-card:hover .btn {
  background: var(--main-color) !important;
  border-color: var(--main-color) !important;
}

/* 胶囊按钮统一蓝色 */
.capsule-btn,
.pill-btn,
.tag-btn {
  background: var(--main-color) !important;
  color: #fff !important;
}

/* 链接统一蓝色 */
a {
  color: var(--main-color);
}
a:hover {
  color: var(--main-color-dark);
}

/* 标题颜色 */
h1, h2, h3 {
  color: #1a1a1a;
}

/* 强调色统一 */
.highlight,
.text-primary {
  color: var(--main-color) !important;
}

/* 背景色统一 */
.bg-primary {
  background: var(--main-color) !important;
}

/* 导航栏统一 */
.nav {
  background: #fff;
  border-bottom: 1px solid #e5e7eb;
}
.nav-link {
  color: #333 !important;
}
.nav-link.active,
.nav-link:hover {
  color: var(--main-color) !important;
}

/* 页脚统一 */
.footer {
  background: #1a1a1a;
  color: #999;
}
.footer a {
  color: #999;
}
.footer a:hover {
  color: #fff;
}

/* 首页1万+徽章缩小上移 */
.yfYearBadge {
  width: 120px !important;
  height: 120px !important;
  top: -30px !important;
  right: -20px !important;
}
.yfBadgeNum {
  font-size: 28px !important;
}
.yfBadgeText {
  font-size: 12px !important;
}

/* 首页关于我们卡片优化 */
.about-card,
.yfSection {
  padding: 40px 24px !important;
}

/* 客户评价两行一行四个 */
.review-grid,
.review-list {
  display: grid !important;
  grid-template-columns: repeat(4, 1fr) !important;
  gap: 16px !important;
}

/* 友情链接样式 */
.friend-links {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid #333;
}
.friend-links a {
  display: inline-block;
  margin: 4px 12px 4px 0;
  font-size: 13px;
}

/* 保洁常识页面优化 */
.faq .page-header {
  text-align: center;
  padding: 40px 20px 20px;
}
.faq .page-header h1 {
  font-size: 32px;
  color: #1a1a1a;
  margin-bottom: 12px;
}
.faq .page-header .desc {
  font-size: 15px;
  color: #666;
}

/* 保洁常识 - 文章卡片区域标题 */
.faq .section-subtitle {
  text-align: left;
  font-size: 20px;
  font-weight: 600;
  color: #1a1a1a;
  margin: 40px 0 20px;
  padding-left: 4px;
  border-left: 4px solid var(--main-color);
  padding-left: 12px;
}

/* FAQ问题框高度优化 */
.faq-item {
  padding: 16px 20px !important;
  margin-bottom: 12px !important;
  border-radius: 8px !important;
}
.faq-question {
  font-size: 15px !important;
  padding: 0 !important;
}
.faq-answer {
  font-size: 14px !important;
  line-height: 1.8 !important;
  padding-top: 12px !important;
}

/* 服务项目卡片统一 */
.service-card {
  border-radius: 12px !important;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

/* 客户案例轮播 */
.case-carousel {
  position: relative;
}
.case-carousel .carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
}
.case-carousel .carousel-btn.prev { left: 10px; }
.case-carousel .carousel-btn.next { right: 10px; }