header {
    background-color: #fff;
}

header .header_container {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    height: 60px;
    font-size: 16px;
}

header .header_container a {
    color: rgb(77, 81, 227);
}

header .division {
    margin: 0 10px;
}

header .header_left {
    -webkit-box-flex: 1;
    -ms-flex: 1;
    flex: 1;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
}

header .header_left .division {
    margin-right: 15px;
}

header .header_left a img {
    height: 41px;
    vertical-align: top;
}

header .header_left .platform_name {
    color: #0e6988;
    font-size: 14px;
}

header .header_right {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    color: #888;
}

header .header_right .header_user_name {
    max-width: 175px;
    color: rgb(77, 81, 227);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin: 0 5px;
}

header .header_right a {
    color: rgb(77, 81, 227);
}

header .header_right .welcome_to {
    margin-right: 30px;
}

nav {
    display: block;
    min-width: 1200px;
    padding: 0;
    border-bottom: 1px solid #fff;
    background-color: #4d51e3;
}

nav ul {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
}

nav ul li {
    -webkit-box-sizing: content-box;
    box-sizing: content-box;
}

nav ul li.active {
    border-bottom: 4px solid #fff;
}

nav ul li a {
    width: 100%;
    height: 100%;
    font-size: 18px;
    color: #fff;
    line-height: 54px;
    padding: 0 30px;
    display: inline-block;
}

napstic-sns-all-notify {
    color: rgb(77, 81, 227);
    margin-right: 10px;
    z-index: 999;
    font-size: 14px;
}

/* 学者中心hover列表 */
.header_center_container {
    position: relative;
    height: 60px;
    line-height: 60px;
    /* color: #fff; */
    color: rgb(77, 81, 227);
    cursor: pointer;
}

.ignore_style .center_list {
    width: 150px;
}

.center_list {
    position: absolute;
    top: 50px;
    left: -20px;
    display: none;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    width: 100px;
    /* height: 117px; */
    color: #000;
    background-color: #fff;
    -webkit-box-shadow: 0 0 10px #d2d2d2;
    box-shadow: 0 0 10px #d2d2d2;
    z-index: 2;
}

.center_list::before {
    position: absolute;
    top: -6px;
    content: '';
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 8px solid #fff;
}

a.center_list_item {
    width: 100%;
    height: 39px;
    line-height: 39px;
    text-align: center;
    color: #000;
}

a.center_list_item:hover {
    background-color: #f5f5f5;
}

.header_center_container:hover .center_list,
.center_list:hover {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
}