/* 英雄区样式 */
.hero {
    height: 80vh;
    background: url('../images/banner.jpg') no-repeat center center/cover;
    display: flex;
    align-items: center;
    padding: 0 50px;
    color: #fff;
    position: relative;
}

.hero__content {
    max-width: 600px;
}

.hero__title {
    font-size: 56px;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.hero__title span {
    color: #f58220;
}

.hero__desc {
    font-size: 18px;
    margin-bottom: 30px;
    line-height: 1.6;
}

/* 轮播指示器 */
.hero__indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: #fff;
    opacity: 0.5;
    cursor: pointer;
}

.indicator.active {
    opacity: 1;
    background-color: #f58220;
}

/* 产品分类区 */
.collection__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 10px;
}

.collection__item {
    text-align: center;
    padding: 10px;
}

.collection__img {
    height: auto;
    width: 100%;
    margin-bottom: 0px;
}

.collection__title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 0px;
    text-transform: uppercase;
}




.collection__title a{
    color: #333;
    text-decoration: none;
}


.collection__desc {
    font-size: 14px;
    color: #666;
    margin-bottom: 5px;
}

.collection__desc a{

color: #333;
    text-decoration: none;
}



/* 使用场景区 */
.usage {
    background-color: #000;
    color: #fff;
}

.usage .section-title,
.usage .section-subtitle {
    color: #fff;
}

.usage__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.usage__item {
    position: relative;
    height: 300px;
    overflow: hidden;
}

.usage__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.usage__overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    text-align: center;
}

.usage__icon {
    font-size: 24px;
    color: #f58220;
    margin-bottom: 10px;
}

.usage__title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 5px;
    text-transform: uppercase;
}

.usage__title a {
text-decoration: none;
    color: #ffffff;
}

.usage__desc {
    font-size: 14px;
    opacity: 0.8;
}


.usage__desc  a {
text-decoration: none;
    color: #ffffff;
}




.usage__item:hover .usage__img {
    transform: scale(1.05);
}

/* 产品优势区 */
.features__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    text-align: center;
}

.features__icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: #f8f8f8;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 32px;
    color: #f58220;
}

.features__title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    text-transform: uppercase;
}

.features__desc {
    font-size: 14px;
    color: #666;
}






/* 响应式适配 */
@media (max-width: 992px) {
    .desktop-nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero__title {
        font-size: 40px;
    }
}

@media (max-width: 768px) {
    .hero {
        height: 60vh;
        padding: 0 20px;
    }
    
    .hero__title {
        font-size: 32px;
    }
    
    .section-padding {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .footer__bottom .container {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
}

@media (max-width: 576px) {
    .hero {
        height: 50vh;
    }
    
    .hero__title {
        font-size: 24px;
    }
    
    .hero__desc {
        font-size: 16px;
    }
    
    .collection__grid {
        grid-template-columns: 1fr;
    }
}