.content {
    width: 100%;
    max-width: 1920px;
    margin: 0 auto;
}

.top {
    width: 100%;
    height: 406px;
}

.top img {
    width: 100%;
    height: 100%;
}

.main {
    width: 100%;
    height: 730px;
    padding-top: 18px;
    padding-left: 50px;
    position: relative;
    background: url(../images/背景.png) no-repeat center center;
}

.main div:nth-child(2) {
    color: #9D7C4E;
    text-align: center;
    margin-bottom: 25px;
}

.main .nav {
    width: 150px;
    height: 730px;
    text-align: center;
    float: left;
    position: absolute;
    top: 0;
    left: 0;
    background-color: rgba(0, 0, 0, .5);
    z-index: 999;
}

.main .nav a {
    display: block;
    height: 80px;
    line-height: 80px;
    font-size: 18px;
    color: #fff;
    margin: 30px 0;
}

.main .nav a:nth-child(1) {
    border-bottom: 5px solid #9D7C4E;
}

.main .nav a:hover {
    border-bottom: 5px solid #9D7C4E;
    text-decoration: none;
}


/* 以下为轮播图样式 --------------------------------------------------*/

#carousel1 ul {
    list-style: none;
}

.carousel-content {
    width: 825px;
    height: 550px;
    position: relative;
    margin: 0 auto;
}

.carousel {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
    border-radius: 5px;
}

.carousel li {
    float: left;
    position: absolute;
    display: none;
}

.carousel li,
.carousel li img {
    width: 97%;
    height: 100%;
}

.carousel-index {
    position: absolute;
    bottom: 8px;
    width: 100%;
    display: flex;
    justify-content: center;
}

.carousel-index li {
    float: left;
    width: 18px;
    height: 18px;
    line-height: 18px;
    text-align: center;
    border-radius: 10px;
    background-color: rgba(0, 0, 0, 0.3);
    font-size: 12px;
    cursor: pointer;
    margin: 0 3px;
    color: #fff;
}

.carousel-index li.current-index {
    background-color: rgba(0, 0, 0, 0.7);
}

.carousel-index li:hover {
    background-color: rgba(0, 0, 0, 0.7);
}

.carousel-prev,
.carousel-next {
    position: absolute;
    top: 0;
    bottom: 0;
    cursor: pointer;
    margin: auto;
    width: 32px;
    height: 40px;
}

.carousel-prev img,
.carousel-next img {
    width: 100%;
    height: 100%;
}

.carousel-prev {
    left: 40px;
}

.carousel-next {
    right: 10px;
}


/* ---------------------------------------------- */

.bottom {
    width: 100%;
    height: 80px;
}

.bottom img {
    width: 100%;
    height: 100%;
}