* {
    margin: 0;
    padding: 0;
}

body {
    background: white;
    width: 100%;
}

/* 导航栏 */

.navbar {
    padding: 4px;
    margin: 0;
}

nav {
    width: 100%;
    padding: 0;
    margin: 0;
}

nav button {
    padding: 0;
    margin: 0;
}

.navbar-brand {
    padding: 0;
    /* margin: 0 13% 0 1%; */
    /* width: 35%; */
    margin-right:30%;
    height: 36px;
}

.navbar-brand img {
    /* width: 100%; */
    /* height: 100%; */
    width: 9rem;
    margin-top: -1rem;
    


}

.navbar form {
    margin: 0 3% 0 0;
    padding: 0;
}

.navbar form .input-group {
    margin-top: 8px;
}

.nav-item {
    cursor: pointer;
    position: relative;
    margin: 0 1rem;
}

.nav-item em {
    background-color: #67ccdb;
    width: 110px;
    height: 45px;
    position: absolute;
    top: 150px;
    left: -30px;
    padding: 10px;
    font-style: normal;
    display: none;
    /* color: #3776b4; */
    color: red;
    text-align: center;
    font-size: 16px;
    z-index: 2;
}

.icon-caigou {
    position: relative;
}

.icon-caigou span {
    position: absolute;
    left: 18px;
    bottom: 15px;
    font-weight: lighter;
    font-size: 12px;
}

#user-name {
    font-size: 17px;
    margin-left: 2%;
}

#identity {
    color: darkgrey;
    font-size: 13px;
    margin-left: 5%;
}

.dropdown-menu .iconfont {
    margin-right: 10%;
}

.breadcrumb {
    margin-left: 30px;
    width: 100px;
    margin-top: 20px;
    padding: 0;
    background-color: rgba(255, 255, 255, 0);
}

/* 内容 */

/* 左侧导航栏滚动监听 */

body {
    position: relative;
}

#list-example {
    height: 100%;
    position: fixed;
    /* background-color: #3776b4; */
    background-color: #868581;
    top: 5rem;
    width: 11%;
}

#list-example .iconfont {
    padding-right: 15%;
}

.list-group-item {
    background-color: #6e6e6c;
    color: rgb(228, 228, 228);
}

.list-group-item:active {
    background-color: #a09f9d;
    color: white;
}



.list-group-item:hover {
    background-color: #dfe7e7;
    color: white;
}

/* 右侧内容 */

#container-right {
    margin-top: 80px;
    color: #17a2b8;
}

#container-right h2 span {
    color: grey;
    font-size: 20px;
    font-weight: lighter;
    margin-left: 1%;
}

.section-contain {
    display: flex;
    flex-wrap: wrap;
    flex-direction: row;
    justify-content: center;
}

.section-contain .card {
    width: 32rem;
    margin: 1%;
}

.section-contain .card img {
    width: 100%;
    height: 200px;
}

.section-contain a:hover {
    text-decoration: none;
}

.card-body {
    text-align: center;
    color: #ff0000;
    padding: 1%;
}

#section1 {
    margin-top: 10px;
    color: black;
    /* height: 450px; */

    max-height: 630px;

    width: 100%;
    border: 3px solid #858788;
    margin-bottom: -50px;
}

#section1 p {
    font-size: 18px;
    font-weight: lighter;
}

.carousel-item {
    width: 100%;
    /* height: 400px; */
    max-height: 630px;

    border: 15px solid white;
}

.carousel-item img {
    width: 100%;

}

#section2 {
    padding-top: 80px;
    height: auto;
    margin-bottom: -50px;
}

#section3 {
    padding-top: 80px;
    margin-bottom: -50px;
}

#section4 {
    padding-top: 80px;
    margin-bottom: -50px;
}

#section5 {
    padding-top: 80px;
    margin-bottom: -50px;
}

#section6 {
    padding-top: 80px;
    margin-bottom: -50px;
}

#section7 {
    padding-top: 80px;

}

.about {
    padding: 2%;
    border: 1px solid #3776b4;
    color: gray;
}

.about span {
    font-weight: bold;
}

@media screen and (max-width: 810px) {
    #section1, #section2, #section3, #section4, #section5, #section6, #section7 {
        margin-left: 100px;
    }
}

.banquan {
    text-align: center;
    margin: 1%;
    color: gray;
}

.nav-item  i{
    font-size: 30px;
}