/* 全局重置与基础样式 - 严格匹配原图比例 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Helvetica Neue", "Microsoft Yahei", sans-serif;
}

a{
    text-decoration: none;
}


/* 头部导航栏 */
header{
    position: fixed;
    z-index: 99999;
    height: 110px;
    overflow: hidden;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 22px;
    font-weight: 400;
    display: flex;
    align-items: center;
    padding: 10px 30px 0 30px;
    height: 110px;
    width: 350px;
    overflow: hidden;
}

.logo-icon {
    width: 60px;
    height: 60px;
    margin-right: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon img{
    width: 100%;
    height: 100%;
}

.logo-text {
    line-height: 1.2;
    color: #fff;
}

.logo-text-en {
    font-size: 12px;
    opacity: 0.8;
    margin-top: 4px;
    color: #fff;
}

/* 导航栏 - 原图右上角位置/间距 */
.nav{
    flex: 1;
    height: 110px;
    display: flex;
    justify-content: flex-end;
    flex-basis: 0;
}
.nav-menu {
    height: 110px;
    display: flex;
    list-style: none;
    padding: 10px 30px 0 30px;
}

.nav-item {
    margin: 0 30px;
    height: 110px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-link {
    color: #fff;
    text-decoration: none;
    font-size: 15px;
    opacity: 0.9;
    position: relative;
    padding: 0 0 6px 0;
    white-space: nowrap;
}

.nav-link:hover, .nav-link:active  , .nav-link:focus{
    color: #fff;
}

.nav-link.active {
    opacity: 1;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: #fff;
}

/* 移动端汉堡菜单 */
.menu-toggle {
    display: none;
    width: 30px;
    height: 30px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    z-index: 9999;
    position: absolute;
    top: 30px;
    right: 30px;
}


.menu-toggle span {
    height: 4px;
    width: 30px;
    background-color: #fff;
    margin: 4px 0;
    transition: all 0.3s ease;
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background-color: rgba(0, 15, 40, 0.95);
    z-index: 9;
    transition: right 0.3s ease;
    display: flex;
    flex-direction: column;
    padding: 140px 40px;
    list-style: none;
}

.mobile-menu.active {
    right: 0;
}

.mobile-nav-item {
    margin: 20px 0;
}

.mobile-nav-link {
    color: #fff;
    text-decoration: none;
    font-size: 15px;
    opacity: 0.9;
}

.mobile-nav-link:hover, .mobile-nav-link:active  , .mobile-nav-link:focus{
    color: #fff!important;
}

.mobile-nav-link.active {
    opacity: 1;
    font-weight: bold;
}


.header-class .logo{
    background: #0a58ca;
}
.header-class .nav{
    background: #f5f5f5;
    overflow: hidden;
}
.header-class .nav .nav-item{
    color: #333;
}
.header-class .nav .nav-link{
    color: #333;
}
.header-class .nav .nav-link.active{
    color: #0a58ca;
}
.header-class .nav .nav-link.active::after{
    background-color: #0a58ca;
}

.header-class .nav-link:hover, .header-class .nav-link:active  , .header-class .nav-link:focus{
    color: #333;
}

.header-class .menu-toggle span{
    background: #333333;
}


/* 页脚样式（完全匹配原图） */
footer {
    background-color: #ffffff;
    padding: 20px 0;
    border-top: 1px solid #e6e6e6;
}

.footer-container {
    width: 90%;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: #999;
}

.copyright {
    text-align: left;
}


.copyright a{
    color: #999;
    text-decoration: none;
}

.footer-slogan {
    text-align: right;
    color: #666;
}



/* 平板设备适配 (768px - 1024px) */
@media (max-width: 1024px) and (min-width: 769px) {
    .logo {
        font-size: 20px;
    }
    .logo-icon {
        width: 60px;
        height: 60px;
    }

    .logo-text-en {
        font-size: 12px;
    }

    .nav-item {
        margin: 0 20px;
    }

    .nav-link {
        font-size: 13px;
    }

    .copyright {
        font-size: 12px;
    }
}


/* 响应式适配（手机端） */
@media (max-width: 768px) {

    /* 显示汉堡菜单，隐藏桌面导航 */
    .menu-toggle {
        display: flex;
    }

    .nav{
        width: 100px;
        flex: 1;
    }

    .nav-menu {
        display: none;
    }

    /* Logo调整 */
    .logo {
        font-size: 20px;
        width: 350px;
    }

    .logo-icon {
        width: 60px;
        height: 60px;
    }

    .logo-text-en {
        font-size: 12px;
    }

    .footer-container {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .copyright, .footer-slogan {
        text-align: center;
    }
}



@media (min-width: 1900px) {
    .container, .container-lg, .container-md, .container-sm, .container-xl, .container-xxl {
        max-width: 1700px;
    }
}


.pagination{
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 40px 0;
    gap: 5px;
}
.pagination li{
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: #fff;
    border: 1px solid #f1f1f1;
}
.pagination li a{
    color: #333;
}
.pagination li.active{
    background: #0d6efd;
    color: #fff;
    border: 1px solid #0d6efd;
}
.pagination li.disabled{
    background: #f1f1f1;
    color: #999;
    cursor: not-allowed;
    border: 1px solid #f1f1f1;
}