/* 全局样式 */
:root {
    --primary-color: #1B66E7;
    --text-color: #333;
    --border-color: #fff;
    --bg-color: #F7F8FC;
}

body {
    min-width: 1200px;
    background-color: #F7F8FC;
    color: #333;
}

.container {
    width: 1236px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 头部样式 */
header {
    height: 415px;
    background: url("../images/header.png") no-repeat center center;
}
header .container{
    position: relative;
}
.top-nav {
    position: absolute;
    right: 0;
    top: 50px;
    bottom: auto;
    display: flex;
}

.top-nav a {
    margin-left: 20px;
    color: #fff;
    font-size: 14px;
    border-radius: 50px;
    width: 90px;
    height: 30px;
    border: 1px solid rgba(255, 255, 255, 0.49);
    display: flex;
    align-items: center;
    justify-content: center;
}
.top-nav a:hover {
    border: 1px solid #c0e2f9;
    color: white;
}
.header-main {
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-align-items: center;
    -ms-flex-align: center;
    align-items: center;
    justify-content: center;
    padding-top: 15px;
}
.header-main img{
    width: 220px;
    display: block;
}
/* 页脚 */
footer {
    background-color: #e1f3ff;
    border-top: 5px solid #0087e6;
    padding: 60px 0;
}
.footer-links {
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-justify-content: space-between;
    -ms-flex-pack: justify;
    justify-content: space-between;
    padding-bottom: 60px;
    border-bottom: 1px solid #dcdcdc;
}

.government-links {
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
}
.government-links .gov-link.n1{
    height: 35px;
    width: 134px;
    margin-right: 20px;
}
.government-links .gov-link.n2{
    height: 31px;
    width: 130px;
}
.government-links .gov-link img{
    width: 100%;
    height: 100%;
    display: block;
}
.department-links {
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
}

.link-group {
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-align-items: center;
    -ms-flex-align: center;
    align-items: center;
    justify-content: space-around;
    width: 200px;
    height: 45px;
    line-height: 45px;
    background-color: #c0e2f9;
    margin-left: 20px;
    font-size: 16px;
    color: #333;
}

.expand-btn {
    margin-left: 5px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 25px;
}

.footer-info {
    margin-top:60px;
    text-align: center;
    display: flex;
    justify-content: space-between;
}
.certifications{
    display: flex;
    align-items: center;
}
.cert-link.n1{
    width: 80px;
    height: 80px;
}
.cert-link.n2{
    width: 110px;
    height: 55px;
    margin-right: 10px;
}
.cert-link.n3{
    width: 120px;
    height: 56px;
}
.cert-link img{
    width: 100%;
    height: 100%;
    display: block;
}

.site-info .links {
    margin-bottom: 10px;
}

.site-info .links a {
    color: #333;
    margin: 0 10px;
    font-size: 16px;
}

.record-info {
    color: #333;
    font-size: 16px;
    margin: 10px 0;
}
.site-info p{
    font-size: 16px;
    color: #333;
}
.record-info a {
    color: #333;
}

.separator {
    margin: 0 10px;
    color: #333;
}

/* 响应式布局支持 */
@media screen and (max-width: 1200px) {
    .container {
        width: 100%;
        padding: 0 15px;
    }
}