:root {
    --red: #c41e3a;
    --red-dark: #a01830;
    --white: #ffffff;
    --gray-100: #f5f5f5;
    --gray-200: #e8e8e8;
    --gray-300: #999;
    --gray-800: #333;
    --black: #1a1a1a;
    --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    --container: min(900px, 100% - 4rem);
    --bm-top-w: max(1000px, 100% - 32rem);
    --header-h: 64rem;
    --header-w: max(750px, 100% - 4rem);
}
/* 全局清除所有点击高亮（推荐） */
* {
  -webkit-tap-highlight-color: transparent;
  tap-highlight-color: transparent;
}
/* 通用按钮样式 */
.button{
    border: none;width: 60px;height: 60px;color: #b4b4b4;font-size: 24px;     
    border-radius: 50%;overflow: hidden;display: flex;background-color: white;    
    align-items: center;justify-content: center;background-position: center center;  

    -webkit-transition: all 0.4s ease;
    -moz-transition: all 0.4s ease;
    -ms-transition: all 0.4s ease;
    -o-transition: all 0.4s ease;
    transition: all 0.4s ease;     
    box-shadow: 0 0px 12px rgba(0, 0, 0, 0.10);     
}

.button.on,
.button:hover,
.button.on,
.button:hover  
{
     pointer-events: auto;color: #ffffff;background-color: #e22041;    
}



.uppercase{
   text-transform: uppercase; /* 字母全大写 */
   letter-spacing: 1px; /* 增加字母间距，提升可读性 */
}


.site_header {
    position: fixed;
    top: 0;
    left: 0;

    /* height: 80px; */
    width: 100%;
    z-index: 200;
    font-size: 20px;
    background: var(--white);
    box-shadow: 0 1px 0 var(--gray-200);
    display: flex;
    align-items: center;
    padding: 0 40px;
    gap: 40px;
}
/* pc导航栏 */
.header-pc{    position: fixed;
    top: 0;
    left: 0;
    /* height: 80px; */
    width: 100%;
    z-index: 200;
    font-size: 2rem;
    background: var(--white);
    box-shadow: 0 1px 0 var(--gray-200);
    display: flex;
    align-items: center;
    padding: 0 4rem;
    gap: 4rem;}
.header-pc .logo {width: auto;cursor: pointer;}
.header-pc .logo img{
    -webkit-transform: scale(0.8);
    -moz-transform: scale(0.8);
    -ms-transform: scale(0.8);
    -o-transform: scale(0.8);
    transform: scale(0.8);
}
.header-pc .container {margin: 0 auto; width: var(--header-w);} /* 最大宽度750px，最小宽度100% - 4rem */
.header-pc .header_inner {
    max-width: 100rem;display: flex;height: 8rem;z-index: 10;    
    padding: 0;gap: 3rem;align-items: center;justify-content: space-between;        
}
.header-pc .header_inner .logo {    
    display: flex;gap: 8rem;aspect-ratio: 165 / 40;align-items: center;cursor: pointer;
    opacity: 0;text-decoration: none;color: var(--gray-800);font-weight: 700;}
.header-pc .main_nav {display: flex;height: 100%;align-items: center;flex: 1;    }

.header-pc .main_nav .nav_item {    
    color: var(--gray-800);text-decoration: none;font-size: 2rem;width: 25%;height: 100%;
    -o-transform-origin: 50% 50%;
    -moz-transform-origin: 50% 50%;
    -ms-transform-origin: 50% 50%;
    -webkit-transform-origin: 50% 50%;
    transform-origin: 50% 50%;
    position: relative;overflow: hidden;    
    align-items: center;display: flex;text-align: center;justify-content: center;    
}

.header-pc .nav_span {
    display: flex;align-items: center;justify-content: center;color: var(--black);    
    width: 100%;height: 100%;
    -webkit-transition: all .3s ease-in-out;
    transition: all .3s ease-in-out;
    -o-transform-origin: 50% 50%;
    -moz-transform-origin: 50% 50%;
    -ms-transform-origin: 50% 50%;
    -webkit-transform-origin: 50% 50%;
    transform-origin: 50% 50%;        
}
.header-pc .nav_item {cursor: pointer;}
.header-pc .nav_01 {
    transform: rotate3d(0, 1, 0, 0deg);
    -o-transform-origin: 0% 50%;
    -moz-transform-origin: 0% 50%;
    -ms-transform-origin: 0% 50%;
    -webkit-transform-origin: 0% 50%;
    transform-origin: 0% 50%;
    -webkit-transition: all .35s ease-in-out;
    transition: all .35s ease-in-out;
}

.header-pc .nav_02 {
    position: absolute;left: 0;top: 0;color: var(--white);   opacity: 0;height: 100%;     
    -o-transform-origin: 50% 50%;
    -moz-transform-origin: 50% 50%;
    -ms-transform-origin: 50% 50%;
    -webkit-transform-origin: 50% 50%;
    transform-origin: 50% 50%;
    background: linear-gradient(to bottom, #e60013 30%, transparent 100%);
    -webkit-transition: all .5s ease-in-out;    
    transition: all .5s ease-in-out;
}

.header-pc .nav_item.on .nav_01,
.header-pc .nav_item:hover .nav_01,
.header-pc .nav_item.over .nav_01 {
    color: var(--white);height: 100%;
}
.header-pc .nav_item.on .nav_02,
.header-pc .nav_item:hover .nav_02,
.header-pc .nav_item.over .nav_02 {
    opacity: 1;height: 100%;    
}
.header-pc .lang_select {
    display: flex;gap: 4rem;align-items: center;        
    font-size: 2rem;cursor: pointer;color: var(--gray-800);     
}
.header-pc .lang_select .arrow {font-size: 2.6rem;    }
.header-pc .submenu {display: none;}
/* //导航栏二级页面 */
.header-pc .nav-two {
    position: absolute;top: 7rem;left: 0;width: 100%;height: 8rem;z-index: 9;
    background-color: var(--white);border-top: 1px solid var(--gray-200);    
}

/* 手机端导航样式 */
.header-mobile{justify-content: space-between;width: 100%;display: none;height: 56px;}
.m-slogo {cursor: pointer; display: flex;align-items: center;}
.m-slogo img {width: 112px;height: 27px;}
.header-mobile .nav_toggle {flex-direction: column;gap: 5px;padding: 8px;
    width: 100px;height: auto;cursor: pointer;display: none;}
.header-mobile .nav_toggle span {    
    width: 24px;height: 2px;    background: var(--gray-800);
    -webkit-transition: all .3s ease-in-out;
    -moz-transition: all .3s ease-in-out;
    -ms-transition: all .3s ease-in-out;
    -o-transition: all .3s ease-in-out;
    transition: all .3s ease-in-out;
}
.header-mobile .nav_toggle {
    display: flex;   border: none;background: none;    justify-content: center;    }

.header-mobile .nav_toggle.active span:first-child {    
    transform: rotate(45deg) translate(5px, 5px);
}

.header-mobile .nav_toggle.active span:nth-child(2) {opacity: 0;}
.header-mobile .nav_toggle.active span:last-child {
    transform: rotate(-45deg) translate(5px, -5px);
}
.header-mobile .container-mobile{
    position: absolute;top: 48px;left: 0;width: 100vw;max-height: calc(100svh - 48px);z-index: 9;
    background-color: rgba(255, 255, 255, 1);border-top: 1px solid var(--gray-200);    
    overflow-y: auto;min-height: 100svh;
    display: none;
}
.header-mobile .container-mobile.active{
    display: block;
}
.main_nav_mobile {
    display: flex;height: 100%;align-items: center;flex: 1;flex-direction: column; width: 100%;
    align-items: center;
    padding: 0 3rem;
}
.main_nav_mobile .nav_item_mobile {    
    text-decoration: none;color: var(--gray-800);
    width: 100%;height: auto;font-size: 2.5rem;
    display: flex;position: relative;justify-content: flex-start;   
    padding: 5rem 4rem;justify-content: flex-start;    
    border-bottom: 1px solid rgba(0, 0, 0, .08);
}
.nav_item_mobile a{ 
    display: block;border: none; color: #000000;
    text-decoration: none;font-size: 2.5rem;
}
.navtwo-mobile a{
    color: #8b8b8b;font-size: 2.2rem;padding-bottom: 3rem;
}

/* 搜索框样式 */
.nav_item_mobile:first-child {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 2rem 3rem;
}
.nav_item_mobile:first-child img {
    width: 3rem;
    height: 3rem;
}
.nav_item_mobile:first-child input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 2.2rem;
    color: var(--gray-800);
    background: transparent;
}
.nav_item_mobile:first-child input::placeholder {
    color: #999;
}

/* 有子菜单的项 - 左右结构 */
.main_nav_mobile{font-size: 3rem;}
.main_nav_mobile .has-submenu {
    flex-direction: row;
    align-items: flex-start;
    gap: 3rem;
}
.main_nav_mobile .has-submenu .mobile_submenu {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 3rem;
    width: 100%;
}
.careers_sub{
    padding: 0rem 0 2rem;
}
.main_nav_mobile .has-submenu .nav_01
{
    flex-shrink: 0;
    min-width: 8rem;    
    color: #333;
    
}

/* 手机端二级菜单样式 - 垂直排列 */
.navtwo-mobile {
    display: flex;
    padding: 0;
    gap: 0;
    flex-direction: column;        
    flex: 1;
    padding-left: 2.6rem;
}

.navtwo-mobile-item {
    font-size: 3rem;
    color: #666;
    text-decoration: none;
    padding: 0.8rem 0;
    border-bottom: none;
    transition: all 0.3s ease;
    display: block;
    pointer-events: auto;
    line-height: 1.5;
}

.navtwo-mobile-item:hover {
    color: #e50012;
}

/* 首页样式 */
.nav_item_mobile:not(.has-submenu):not(:first-child) {
    /* font-size: 1.8rem; */
    /* font-weight: 500; */
}
.footer {
    background-color: #e50112;
    color: #fff;max-width: 192rem;margin: 0 auto;
    /* padding: clamp(2rem, 4vw, 6rem) 0 clamp(6rem, 12vw, 18rem); */
    padding: 4rem 0 4rem;
    display: flex;
    justify-content: center;
}

.footer .space-left,
.footer .space-right {
    flex: 1;
    min-width: clamp(2rem, 4vw, 6rem);
    max-width: clamp(8rem, 16vw, 24rem);
}

.footer .container {
    flex: 0 1 auto;
    max-width: min(144rem, 90vw);
    width: 100%;
    position: relative;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: clamp(1.5rem, 3vw, 4.5rem);
    flex-direction: row;
    position: relative;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: clamp(1rem, 2vw, 3rem);
    align-items: flex-start;
}

.footer-content2 {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: clamp(1.5rem, 3vw, 4.5rem);
}

.footer-contact h3 {
    font-size: 2.4rem;
    font-weight: bold;
    margin: 0;
}

.footer-contact-links {
    display: flex;
    gap: clamp(2rem, 4vw, 6rem);
    flex-wrap: wrap;
}

.footer-contact-links p {
    margin: 0;
    font-size: 2rem;
}

.footer-contact-links a {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-contact-links a:hover {
    color: rgba(255, 255, 255, 0.8);
}

.footer-links {
    display: flex;
    gap: 6rem;
    flex-wrap: wrap;
    /* border: 1px solid rgba(255, 255, 255, 1); */
}

.footer-links a {
    color: #fff;
    text-decoration: none;
    font-size: 2rem;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: rgba(255, 255, 255, 0.8);
}

.footer-qr {
    display: flex;
    flex-direction: column;align-items: center;    
    gap: clamp(0.5rem, 1vw, 1.5rem);
}

.footer-qr img {
    width: 9rem;
    height: auto;
}

.footer-qr p {
    font-size: 1.4rem;
    margin: 0;
}

.footer-bottom {
    font-size: 1.6rem;
    opacity: 0.8;
}

/* 响应式设计 */
@media (max-width: 1023.98px) {
    /* 手机端导航样式 */
    .site_header {
        padding: 0 1.5rem;
        height: 7rem;
    }

    .header-pc {display: none;}
    .header-mobile{
        display: flex;
    }
    .header-mobile .lang_select{text-align: right;
        display: flex; font-size: 2rem;
        align-items: center;
        justify-content: flex-end;
    }
    /* 底部区域 */
    .footer-content {        
        flex-direction: row;
        align-items: flex-start;
    }
    .footer-contact h3{
        font-size: 2.4rem;
    }
    .footer-contact-links p{
        font-size: 1.8rem;
    }
    .footer-content2 {
        flex-direction: column;align-items: flex-start;gap: 5rem;        
    }
    .footer-links a {
        font-size: 2rem;
    }
    .footer-copyright{
        font-size: 1.6rem;
    }
    .footer-bottom{
        font-size: 1.6rem;
    }
    .footer-qr img{
        width: 10rem;
        height: auto;
    }
    .footer-qr {
        align-items: center;
    }

    .footer-contact-links {        
        flex-direction: column;gap: 0;align-items: flex-start;
        /* flex: 1; */        
    }

    .footer-links {
        justify-content: center;
    }
}



/* 二级导航条 */
.nav-two {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: #fff;
    border-top: 1px solid #eee;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 80px;
    padding: 15px 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    /* 兼容 */
    display: -webkit-flex;
    -webkit-justify-content: center;
    -webkit-align-items: center;
    -webkit-gap: 80px;
}

.nav-two.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-two-item {
    font-size: 1.8rem;pointer-events: auto;
    color: #666;
    text-decoration: none;
    transition: color 0.3s ease;
    position: relative;
}

.nav-two-item:hover,
.nav-two-item.active {
    color: #e50012;
}

.nav-two-item.active::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 0;
    width: 100%;
    height: 2px;
    background: #e50012;
}

/* 联系我们区域显示控制 */
.contact-container-sm {
    display: none;
}

/* 响应式适配 */
@media (max-width: 768px) {
    .contact-container-sm {
        display: block;
    }

    .nav_toggle{justify-content: center;}
    .m-slogo{display: flex;align-items: center;}
    .lang_select{width: 100px;text-align: right;}
    .nav-two {
        gap: 40px;
        -webkit-gap: 40px;
        padding: 10px 0;
    }
    
    .nav-two-item {
        font-size: 14px;
    }
    .footer .container{ 
        padding: 0;
    }
    .footer-content2{
        flex-direction: column;
        align-items: flex-start;
        gap: 5rem;
        margin-top: 4rem;
        padding-top: 4rem;
    }
    .footer-links{
        display: flex;
        gap: 6rem;
        flex-wrap: wrap;
        flex-direction: row;
    }
    .footer-bottom{
        padding-top: 2rem;
    }
    /* 手机端导航调整 */
    .main_nav_mobile .nav_item_mobile {
        padding: 3rem 4rem;font-weight: 300;
    }
    .main_nav_mobile .has-submenu {
        gap: 2rem;
    }
    .main_nav_mobile .has-submenu .mobile_submenu {
        gap: 2rem;
    }
    .main_nav_mobile .has-submenu .nav_01 {
        
    }
    .navtwo-mobile-item {
        font-size: 3rem;
        padding: 0.6rem 0;
    }
    
    /* 手机端联系我们区域 */
    .contact-container-sm {
        background-color: #e50112;
        color: white;
        padding: 7rem 5.3rem;
        text-align: center;
        position: relative;
    }
    
    .contact-title {
        font-size: 3.6rem;
        font-weight: bold;
        margin: 0 0 4rem 0;
    }
    
    .contact-emails {
        margin-bottom: 6rem;
    }
    
    .contact-emails p {
        font-size: 1.6rem;
        margin: 1.5rem 0;
    }
    
    .contact-emails a {
        color: white;
        text-decoration: none;
    }
    
    .contact-links {
        display: flex;
        justify-content: space-between;
        margin-bottom: 6rem;
    }
    
    .contact-link-column {
        flex: 1;
        padding: 0 1rem;
    }
    
    .contact-link-column-content h3 {
        font-size: 1.8rem;
        font-weight: bold;
        margin: 0 0 2rem 0;
    }
    
    .contact-link-column-content a {
        display: block;
        color: white;
        text-decoration: none;
        font-size: 1.4rem;
        margin: 1rem 0;
        line-height: 1.5;
    }
    
    .contact-seif {
        width: 100%;
        max-width: 30rem;
        margin: 0 auto 4rem;
        opacity: 0.8;
    }
    
    .contact-qr-box {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-top: 4rem;
    }
    
    .contact-copyright {
        text-align: left;
    }
    
    .contact-copyright p {
        font-size: 1.2rem;
        margin: 0.5rem 0;
        opacity: 0.8;
    }
    
    .contact-qr img {
        width: 8rem;
        height: 8rem;
    }
}

@media (max-width: 480px) {
    .nav-two {
        gap: 20px;
        -webkit-gap: 20px;
        padding: 8px 0;
        overflow-x: auto;
        justify-content: flex-start;
        padding-left: 20px;
    }

    .nav-two-item {
        font-size: 12px;
        white-space: nowrap;
    }
    
    /* 手机端导航调整 */
    /* .main_nav_mobile .nav_item_mobile {
        padding: 1.2rem 1.5rem;
    }
    .main_nav_mobile .has-submenu {
        gap: 1.5rem;
        flex-direction: column;
    }
    .main_nav_mobile .has-submenu .mobile_submenu {
        gap: 1rem;
        flex-direction: column;
        width: 100%;
    }
    .main_nav_mobile .has-submenu .nav_01 {
        min-width: auto;
        font-size: 1.5rem;
        border-bottom: 1px solid #eee;
        padding-bottom: 0.8rem;
        width: 100%;
    }
    .navtwo-mobile-item {
        font-size: 1.3rem;
        padding: 0.5rem 0;
    }
    .nav_item_mobile:first-child {
        padding: 1.2rem 1.5rem;
    } */
}