.nav {
    margin-top: 55px;
    width: 100%;
    position: relative;
    background: rgb(29, 29, 31);
}

.nav-container {
    position: relative;
    width: 100%;
    /* height: 449px; */
    margin: 0 auto;
}

.nav-container img {
    width: 100%;
    height: 100%;
}

.nav-container .text-area .title {
    position: absolute;
    text-indent: 2em;
    width: 250px;
    left: 0px;
    top: 65px;
    background: rgb(0,71,113);
    font-size: 12px;
    font-family: 'MicrosoftYaHei';
    font-weight: bold;
    color: #FBFBFD;
    line-height: 16px;
}

#swiper-container {
    width: 90%;
    height: 100%;
    margin: 0 auto;
    margin-bottom: 20px;
}

#swiper-container .swiper-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

#swiper-container .swiper-slide {
    width: 100%;
    background-position: center;
    background-size: cover;
    position: relative;
}

#swiper-container .swiper-button-next {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    font-size: 10px;
    background: rgba(0, 0, 0, 0);
    color: white;
    line-height: 20px;
    text-align: center;
    margin-right: 10px;
}

#swiper-container .swiper-button-next img, #swiper-container .swiper-button-prev img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

#swiper-container .swiper-button-prev {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    font-size: 10px;
    background: rgba(0, 0, 0, 0);
    color: white;
    line-height: 20px;
    text-align: center;
    margin-left: 10px;
}

.product-part .title {
    width: 100%;
    text-align: center;
    font-size: 12px;
    font-family: MicrosoftYaHei;
    font-weight: 400;
    color: #FBFBFD;
    margin-top: 20px;
    margin-bottom: 20px;
}

.product-part .con {
    position: relative;
    width: 100%;
    background: #000;
    background-size: contain;
    background-repeat: no-repeat;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    align-content: center;
}

.product-part .con .fangan {
    width: 90%;
    font-size: 12px;
    font-family: 'MicrosoftYaHei';
    font-weight: 400;
    color: #FBFBFD;
    line-height: 20px;
}

.product-part .con .part {
    /* width: 150px; */
    /* height: 178px; */
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 25px;
    margin-right: 15px;
}

.product-part .con .part p {
    font-size: 10px;
    font-family: 'Source Han Sans SC';
    font-weight: 500;
    color: #FBFBFD;
    line-height: 14px;
    margin-left: 8px;
}

.product-part .con .part img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.swiper-erweima {
    text-align: center;
    margin-bottom: 20px;
}

.swiper-erweima img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}


.swiper-erweima p {
    font-size: 10px;
    font-family: 'MicrosoftYaHei';
    font-weight: 400;
    color: #FFFFFF;
    line-height: 14px; 
    margin-top: 10px;
}