/* 顶部导航 */
.header {
  position: sticky;
  top: 0;
  background: linear-gradient(135deg, #e60012 0%, #b3000d 100%);
  color: white;
  padding: 12px 15px;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.logo {
  font-size: 22px;
  font-weight: bold;
  display: flex;
  align-items: center;
}

.logo i {
  margin-right: 8px;
  font-size: 26px;
}

.actions {
  display: flex;
  gap: 20px;
}

.actions i {
  font-size: 20px;
}

.search-box {
  background: white;
  border-radius: 20px;
  padding: 8px 15px;
  display: flex;
  align-items: center;
}

.search-box input {
  border: none;
  outline: none;
  width: 100%;
  padding: 0 10px;
  font-size: 14px;
}

.search-box i {
  color: #999;
}

/* 分类导航 */
.category-nav {
  background: white;
  padding: 15px 0;
  margin-bottom: 10px;
  overflow-x: auto;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.category-nav::-webkit-scrollbar {
  display: none;
}

.category-item {
  display: inline-block;
  text-align: center;
  padding: 0 15px;
  font-size: 13px;
}

.category-item.active {
  color: #e60012;
  font-weight: bold;
}

.category-icon {
  display: block;
  width: 40px;
  height: 40px;
  background: #f8f8f8;
  border-radius: 50%;
  margin: 0 auto 5px;
  line-height: 40px;
  font-size: 18px;
  color: #e60012;
}

/* 轮播图 */
.banner {
  height: 160px;
  border-radius: 10px;
  overflow: hidden;
  margin: 0 15px 15px;
  position: relative;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.banner-indicators {
  position: absolute;
  bottom: 10px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: 6px;
}

.indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
}

.indicator.active {
  background: white;
}

/* 快捷入口 */
.quick-access {
  background: white;
  padding: 20px 0;
  margin: 0 15px 15px;
  border-radius: 10px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  text-align: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.quick-item {
  padding: 5px;
}

.quick-icon {
  width: 45px;
  height: 45px;
  background: linear-gradient(135deg, #ffecf0 0%, #ffe6eb 100%);
  border-radius: 50%;
  margin: 0 auto 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #e60012;
}

/* 推荐商品 */
.section-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 15px 10px;
  font-size: 18px;
  font-weight: bold;
}

.section-title a {
  font-size: 13px;
  color: #666;
  font-weight: normal;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  padding: 0 10px 10px;
}

.product-card {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.product-image {
  height: 160px;
  position: relative;
}

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

.product-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  background: #e60012;
  color: white;
  padding: 3px 8px;
  border-radius: 3px;
  font-size: 12px;
}

.product-info {
  padding: 12px;
}

.product-title {
  font-size: 14px;
  height: 40px;
  overflow: hidden;
  margin-bottom: 8px;
}

.product-price {
  color: #e60012;
  font-weight: bold;
  font-size: 16px;
}

.product-original-price {
  color: #999;
  font-size: 12px;
  text-decoration: line-through;
  margin-left: 5px;
}

.product-sales {
  color: #999;
  font-size: 12px;
  margin-top: 5px;
}

/* 品牌专区 */
.brand-section {
  background: white;
  margin: 15px;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.brand-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: #f8f8f8;
}

.brand-item {
  background: white;
  text-align: center;
  padding: 15px 5px;
}

.brand-item img {
  height: 40px;
  margin-bottom: 8px;
}

/* 底部导航 */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: white;
  display: flex;
  border-top: 1px solid #eee;
  z-index: 100;
}

.nav-item {
  flex: 1;
  text-align: center;
  padding: 10px 0;
  font-size: 12px;
  color: #666;
}

.nav-item.active {
  color: #e60012;
}

.nav-item i {
  display: block;
  font-size: 20px;
  margin-bottom: 4px;
}

/* 促销条 */
.promo-bar {
  background: #fff8e6;
  color: #e6a23c;
  padding: 8px 15px;
  font-size: 13px;
  display: flex;
  align-items: center;
  margin: 10px 15px;
  border-radius: 5px;
}

.promo-bar i {
  margin-right: 8px;
}