/* ========================================
    首页样式 - home.css
    包含: 分类导航、热销产品、制造商展示、证书轮播等组件
    ======================================== */

/* --- 分类导航组件 (Swiper 水平滚动 - 外置箭头) --- */
.category-nav-section {
  padding: 3rem 0;
  background-color: var(--bs-light);
}

.category-nav-wrapper {
  position: relative;
}

.category-nav-container {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.category-nav-swiper {
  flex: 1;
  padding: 0.5rem 1rem 2rem;
  overflow: hidden;
}

.category-nav-button-prev,
.category-nav-button-next {
  position: static;
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
  flex-shrink: 0;
}

.category-nav-button-prev::after,
.category-nav-button-next::after {
  font-size: 0.875rem;
  color: var(--bs-primary);
}

.category-nav-button-prev:hover,
.category-nav-button-next:hover {
  background: #fff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
}

.category-nav-slide {
  width: auto;
  flex-shrink: 0;
}

@media (max-width: 575px) {
  .category-nav-button-prev,
  .category-nav-button-next {
    width: 28px;
    height: 28px;
  }

  .category-nav-button-prev::after,
  .category-nav-button-next::after {
    font-size: 0.75rem;
  }
}

.category-nav-item {
  height: 100%;
}

.category-nav-link {
  display: block;
  text-align: center;
  padding: 0.5rem;
  background: #fff;
  border-radius: 6px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
  height: 100%;
}

.category-nav-link:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.category-nav-icon {
  width: 100%;
  height: auto;
  border-radius: 4px;
  margin-bottom: 0.5rem;
  overflow: hidden;
  background-color: var(--bs-gray-200);
}

.category-nav-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.category-nav-link:hover .category-nav-image {
  transform: scale(1.05);
}

.category-nav-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bs-gray-500);
}

.category-nav-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--bs-dark);
  margin-bottom: 0.25rem;
  opacity: 0.85;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.category-nav-link:hover .category-nav-title {
  opacity: 1;
  transform: scale(1.05);
}

.category-nav-desc {
  font-size: 0.75rem;
  color: var(--bs-gray-600);
  margin: 0;
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

.category-nav-link:hover .category-nav-desc {
  opacity: 1;
}

/* ========================================
   以下为其他组件预留样式
   ======================================== */

/* --- 制造商展示组件 (C002) --- */
.manufacturer-item {
  margin-bottom: 4rem;
}

.manufacturer-item:last-child {
  margin-bottom: 0;
}

.manufacturer-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.manufacturer-content {
  padding: 3rem;
}

.manufacturer-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--bs-dark);
  margin-bottom: 1rem;
}

.manufacturer-slogan {
  font-size: 1.25rem;
  color: var(--bs-primary);
  font-weight: 500;
  margin-bottom: 1rem;
}

.manufacturer-desc {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--bs-gray-700);
}

/* --- 证书轮播组件 (C004) --- */
.certificate-swiper-section {
  padding: 4rem 0;
  background-color: var(--bs-light);
}

.certificate-swiper-section .section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.certificate-swiper-section .section-title h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--bs-dark);
  position: relative;
  display: inline-block;
}

.certificate-swiper-section .section-title h2::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background-color: var(--bs-primary);
}

.certificate-swiper {
  padding: 1rem 0 3rem;
}

.certificate-swiper .swiper-button-next,
.certificate-swiper .swiper-button-prev {
  color: var(--bs-primary);
}

.certificate-swiper .swiper-button-next::after,
.certificate-swiper .swiper-button-prev::after {
  font-size: 1.5rem;
}

.certificate-swiper .swiper-pagination {
  bottom: 0;
}

.certificate-swiper .swiper-pagination-bullet {
  background-color: var(--bs-primary);
  opacity: 0.3;
}

.certificate-swiper .swiper-pagination-bullet-active {
  opacity: 1;
}

/* 证书卡片 */
.cert-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  height: 100%;
}

.cert-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.cert-image {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
  background-color: var(--bs-gray-200);
}

.cert-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.cert-card:hover .cert-image img {
  transform: scale(1.05);
}

.cert-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bs-gray-400);
}

.cert-info {
  padding: 1.25rem;
}

.cert-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--bs-dark);
  margin-bottom: 0.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.cert-desc {
  font-size: 0.875rem;
  color: var(--bs-gray-600);
  margin: 0;
}

/* --- 展示案例轮播组件 (C005) --- */
.showcase-swiper {
  padding: 1rem 0 3rem;
  overflow: hidden;
}

.showcase-swiper .swiper-slide {
  height: auto;
  display: flex;
}

.showcase-swiper .swiper-pagination {
  bottom: 0;
}

.showcase-swiper .swiper-pagination-bullet {
  background-color: rgba(255, 255, 255, 0.5);
  opacity: 0.7;
  width: 8px;
  height: 8px;
}

.showcase-swiper .swiper-pagination-bullet-active {
  background-color: #fff;
  opacity: 1;
}

@media (max-width: 640px) {
  .showcase-swiper {
    padding: 1rem 0 2.5rem;
  }

  .showcase-swiper .swiper-pagination-bullet {
    width: 6px;
    height: 6px;
  }
}