/************************* 设置通用样式 *************************/
* {
    margin: 0;
    padding: 0;
    font-size: 14px;
    font-family: 'Microsoft YaHei', Arial, Helvetica, sans-serif;
}
body {
    background-color: #f4f4f4;
    color: #333;
}
a {
    text-decoration-line: none;
    color: black;
}
ul li{
    list-style: none;
}
table {
    border-collapse: collapse;
}
input {
    border: 1px solid #ccc;
}
/************************* 设置顶部区域样式 *************************/
.top {
    width: 100%;
    background-color: #488fce;
    position: fixed;
    top: 0;
    left: 0;
}
/* 设置居中显示框的样式 */
.center {
    width: 960px;
    margin: 0 auto;
    /* background-color: green; */
}
.top-center {
    height: 45px;
    line-height: 45px;
    /* background-color: green; */
}
/* 设置 logo 的样式 */
.logo {
    /*background-color: blue;*/
    width: 150px;
    color: #ffffff;
    font-size: 20px;
    font-weight: bold;
    text-align: center;
    float: left;
}
.top .nav {
    float: left;
}
.top .nav ul li {
    /*background-color: lightseagreen;*/
    float: left;
    font-size: 15px;
    /* padding: 0 20px; */
}
.top .nav ul li a {
    display: block;
    color: #ffffff;
    font-weight: bold;
    padding: 0 20px;
}
.top .nav ul li a:hover {
    background-color: #3b7fc4;
}
.top .search {
    float: left;
    width: 180px;
    /*height: 28px;*/
    /*background-color: lightsalmon;*/
    /*line-height: 45px;*/
    /*overflow: hidden;*/
    display: flex;
    height: 45px;
    align-items: center;
    /*padding: 0 5px;*/
    box-sizing: border-box;
}
.top .search input {
    border-width: 0;
}
.top .search .search-keywords {
    /*float: left;*/
    width: 130px;
    height: 30px;
    margin-left: 5px;
    border-radius: 3%;
    /*background-color: red;*/
}
.top .search .search-keywords::placeholder {
    color: #999;
}
.top .search .search-keywords:focus::placeholder {
    color: transparent;
}
.top .search .submit {
    /*float: right;*/
    width: 18px;
    height: 18px;
    background: url("../images/sprite.png") 0 -600px no-repeat;
    cursor: pointer;
    margin-left: 8px;
}
/* 设置登陆区域 */
.login {
    /* background-color: #f50632; */
    float: right;
    width: 100px;
    display: flex;
    justify-content: space-evenly;
}
.login a {
    display: block;
    color: #ffffff;
    font-weight: bold;
    padding: 0 10px;
}
.login a:hover {
    background-color: #3b7fc4;
}
/************************* 设置底部区域样式 *************************/
footer {
    margin-top: 300px;
    /* background-color: #00a4ff; */
    border-top: 1px solid #d3d3d3;
}
footer .bottom {
    text-align: center;
}
footer .site-name {
    padding: 10px 0;
}
footer .site-name a {
    color: #666;
}
footer .site-name a:hover {
    text-decoration: underline;
}
footer .copyright {
    color: #999;
}