/* Banner样式 */
.main-banner {
    /* margin-top: 80px; 与导航栏高度一致 */
    position: relative;
    overflow: hidden;
}

.product-banner {
    height: 600px;
    background: #1a365d;
}

.swiper-slide {
    position: relative;
    width: 100%;
    height: 100%;
}

.swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 30%;
}

.banner-caption {
    position: absolute;
    left: 10%;
    bottom: 20%;
    color: var(--text-light);
    max-width: 600px;
    padding: 2rem;
    background: rgba(27, 45, 107, 0.85);
    border-radius: 8px;
}

.banner-caption h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
}

.banner-caption p {
    font-size: 1.2rem;
    line-height: 1.5;
}

/* 分页器样式 */
.swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    background: rgba(255,255,255,0.5);
    opacity: 1;
    transition: all 0.3s;
}

.swiper-pagination-bullet-active {
    background: var(--secondary-color);
    transform: scale(1.2);
}

/* 移动端适配 */
@media (max-width: 768px) {
    .product-banner {
        height: 400px;
    }
    
    .banner-caption {
        left: 5%;
        bottom: 15%;
        padding: 1.5rem;
    }
    
    .banner-caption h2 {
        font-size: 1.8rem;
    }
    
    .banner-caption p {
        font-size: 1rem;
    }
    
    .swiper-pagination-bullet {
        width: 10px;
        height: 10px;
    }
}

@media (max-width: 480px) {
    .product-banner {
        height: 300px;
    }
    
    .banner-caption {
        bottom: 10%;
        padding: 1rem;
        left: 2%;
        right: 2%;
        max-width: none;
    }
    
    .banner-caption h2 {
        font-size: 1.4rem;
    }
    
    .banner-caption p {
        font-size: 0.9rem;
    }
}
/* 产品导航区域 */
.product-nav-section {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    position: relative;
    z-index: 50;
}

.product-nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
}

/* 产品分类导航 */
.category-menu {
    display: flex;
    gap: 8px;
    overflow-x: auto; /* 移动端横向滚动 */
    scrollbar-width: none; /* Firefox */
}

.category-menu::-webkit-scrollbar { 
    display: none; /* Chrome/Safari */
}

.category-menu li {
    position: relative;
    transition: all 0.25s ease;
}

.category-menu a {
    display: block;
    padding: 12px 24px;
    font-size: 16px;
    color: #333;
    background: #f8f9fa;
    border-radius: 4px;
    transition: all 0.25s cubic-bezier(0.4,0,0.2,1);
}

.category-menu .active a,
.category-menu a:hover {
    background: var(--primary-color);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(239,59,27,0.25);
}

/* 面包屑导航 */
.breadcrumb-nav {
    display: flex;
    align-items: center;
    font-size: 14px;
    color: #666;
    padding-left: 20px;
}

.bc-divider {
    margin: 0 10px;
    color: #ccc;
}

.bc-item a {
    color: #666;
    transition: color 0.2s;
}

.bc-item a:hover {
    color: var(--primary-color);
}

.current {
    color: var(--primary-color);
    font-weight: 500;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .product-nav-wrapper {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    
    .category-menu {
        padding-bottom: 8px; /* 给滚动条留空间 */
    }
    
    .category-menu a {
        padding: 10px 18px;
        font-size: 14px;
        white-space: nowrap;
    }
    
    .breadcrumb-nav {
        padding-left: 0;
        flex-wrap: wrap;
        gap: 6px;
    }
    
    .bc-divider {
        display: none;
    }
}

@media (max-width: 480px) {
    .category-menu a {
        padding: 8px 14px;
    }
    
    .breadcrumb-nav {
        font-size: 13px;
    }
}