/* 定义 Poppins 字体 */
@font-face {
    font-family: 'Poppins';
    src: url('//qnoss2.vedkang.com/vedkangweb/Poppins-Regular.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
}
*, *:focus {
    outline: none;
}
a,
a:link,
a:visited,
a:hover,
a:active {
    text-decoration: none;
    color: inherit;
}


html {
    scroll-behavior: smooth;
    font-size: 12px;
}
body {
    font-family: 'Poppins', 'Noto Sans SC', sans-serif;
}
@media (min-width: 992px) {
    html {
        font-size: 18px;
    }
}

.container {
    padding-left: 20px;
    padding-right: 20px;
}
.navbar {
    top: 0;
    left: 0;
    transition: transform 0.3s ease; /* 平滑过渡动画 */
}
.navbar.hide {
    transform: translateY(-100%);
}
.navbar.show {
    transform: translateY(0);
}
/* bootstrap样式 */
@media (min-width: 992px) {
    .container {
        max-width: 1260px;
    }
}

/* 导航栏样式 */
.container_nav {
    width: 100%;
    height: 48px;
    background-color: #FFFFFF;
    z-index: 1000;
}
@media (min-width: 992px) {
    .container_nav {
        width: 100%;
        height: 78px;
        background: linear-gradient(to bottom, rgba(0,0,0,0.8) 0%, rgba(58,58,58,0) 100%);
    }
    .container_nav_contact {
        background: linear-gradient(to bottom, rgba(0, 23, 28, 0.66) 0%, rgba(98, 105, 124, 0) 100%);
    }
    .container_nav_hover {
        background: none;
        background-color: white;
    }
}

/* 导航栏列表样式 */
.container_nav .main_logo {
    height: 26px;
}
@media (min-width: 992px) {
    .container_nav .main_logo {
        height: 48px;
    }
}
.container_nav ul li {
    display: flex;
    align-items: center;
    color: white;
    position: relative;
}
.container_nav ul li .nav_item {
    cursor: pointer;
    font-size: 1.1rem;
    height: 78px;
    line-height: 78px;
}
.container_nav ul li .nav_item:hover, .container_nav ul li .nav_item_checked{
    border-bottom: 2px solid #E72C18;
}
.nav_item_hover {
    color: black !important;
}
.nav_item_line_disable {
    border: none !important;
}

/* 搜索栏 */
.navbar .container_content {
    position: relative;
}
.navbar .container_content .container_search {
    display: none;
    align-items: center;
    position: absolute;
    right: 52px;
    top: 12px;
}
.navbar .container_content .container_search .search_group {
    display: flex;
    margin-right: 25px;
    width: 645px;
    position: relative;
}
.navbar .container_content .container_search .search_input {
    width: 80%;
    height: 50px;
    padding: 0 16px;
    border: 1px solid #CCCCCC;
    border-radius: 10px 0 0 10px;
    font-size: 18px;
}
.navbar .container_content .container_search .search_group button {
    width: 20%;
    height: 50px;
    background-color: #FF2800;
    color: white;
    border: none;
    border-radius: 0 10px 10px 0;
    font-size: 18px;
    cursor: pointer;
}
.navbar .container_content .container_search .container_search_list {
    position: absolute;
    top: 50px;
    left: 0;
    width: 80%;
}
.navbar .container_content .container_search .container_search_list ul {
    width: 100%;
    background-color: white;
    border: 1px solid #CCCCCC;
    list-style-type: none;
    overflow-y: scroll;
    max-height: 500px;
}
.navbar .container_content .container_search .container_search_list ul li {
    font-size: 18px;
    color: black;
    padding: 10px 0;
    text-align: left;
}
.container_search_moblie .container_search_list_moblie {
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
}
.container_search_moblie .container_search_list_moblie ul {
    width: 100%;
    background-color: white;
    border: 1px solid #CCCCCC;
    list-style-type: none;
    overflow-y: scroll;
    max-height: 300px;
}
.container_search_moblie .container_search_list_moblie ul li {
    font-size: 12px;
    color: black;
    padding: 5px 0;
    text-align: left;
}

/* 语言菜单 */
.container_lan_menu {
    background-color: #FFFFFF;
    width: 113px;
    height: 90px;
    border-radius: 6px;
    box-shadow: 8px 8px 30px 0px rgba(39,39,39,0.3);
    overflow: hidden;
    position: absolute;
    left: -33px;
    top: 78px;

    visibility: hidden;
}
.lan_menu {
    margin: 13px 30px 10px 20px;
    height: 62px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.chinese, .english {
    font-size: 1rem;
    color: #323232;
    font-weight: 500;
    line-height: 27px;
    cursor: pointer;
}

.nav_overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 500;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}
.nav_overlay.active {
    opacity: 1;
    visibility: visible;
}
.left_side_nav {
    position: fixed;
    background-color: #FFFFFF;
    width: 50%;
    height: 100%;
    z-index: 950;
    padding-top: 60px;
    left: -50%;
    transition: all 0.3s ease;
}
.left_side_nav.active {
    left: 0;
}
.left_side_nav .item {
    padding: 15px 20px;
    color: #000000;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    text-decoration: none;
    cursor: pointer;
}
.left_side_nav .item i {
    margin-right: 10px;
    color: #1a56a8;
}
/* 下拉箭头 */
.left_side_nav .arrow {
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid #666;
    transition: transform 0.3s ease;
}
.left_side_nav .arrow.open {
    transform: rotate(180deg);
}

/* 子菜单 */
.left_side_nav .submenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}
.left_side_nav .submenu.open {
    max-height: 500px; /* 足够大的值容纳所有子项 */
}
.left_side_nav .submenu .sub_item {
    padding: 12px 20px 12px 40px;
    color: #000000;
    font-size: 12px;
    display: block;
    text-decoration: none;
}

/* banner */
.container_banner {
    position: relative;
    margin-top: 48px;
}
.container_banner .banner {
    width: 100%;
    /* height: 100%; */
}
@media (min-width: 992px) {
    .container_banner {
        margin-top: 0px;
    }
}

.navbar .menu_btn {
    border: none;
}
.navbar .menu_btn img {
    width: 26px;
    height: 26px;
}
.navbar .menu_btn .search_moblie {
    margin-right: 10px;
}

.container_search_moblie {
    position: fixed;
    top: 48px;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 900;
    border-top: 1px solid #D8D8D8;
    background-color: #FFFFFF;
    visibility: hidden;
}
.container_search_moblie .container_input {
    position: relative;
    margin-top: 30px;
}
.container_search_moblie .container_input input {
    width: 100%;
    height: 40px;
    border-radius: 20px;
    border: 1px solid #D8D8D8;
    padding-left: 50px;
}
.container_search_moblie .container_input img {
    position: absolute;
    left: 10px;
    top: 7px;
    width: 26px;
    height: 26px;
}

.top_btn {
    width: 50px;
    height: 50px;
    position: fixed;
    bottom: 10%;
    right: 5%;
    background-color: #FFFFFF;
    border-radius: 50%;
    visibility: hidden;
    z-index: 800;
    box-shadow: 0px 0 4px 0px rgba(175,175,176,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}
.top_btn img {
    width: 24px;
    height: 24px;
}

.containerTips {
    background-color: #000000;
    padding: 5px 10px;
    position: fixed;
    top: 50%;
    left: 50%;
    display: none;
    z-index: 5100;
    transform: translate(-50%, -50%);
}
.containerTips span {
    font-size: 18px;
    color: #FFFFFF;
}
.containerTips_en {
    background-color: #000000;
    padding: 5px 10px;
    position: fixed;
    top: 50%;
    left: 50%;
    display: none;
    z-index: 5100;
    transform: translate(-50%, -50%);
}
.containerTips_en span {
    font-size: 18px;
    color: #FFFFFF;
}


/* display */
.hide {
    display: none !important;
}
.show {
    display: block !important;
}
.showflex {
    display: flex !important;
}
.showinlineblock {
    display: inline-block !important;
}