/* 字体引入 */
/*
@font-face {
    font-family: "SourceHanSansCn Regular";
    src: url("../fonts/SourceHanSansCN-Regular.otf") format("opentype");
    font-style: normal;
    font-display: swap;
}
*/

/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    list-style: none;
    text-decoration: none;
    font-family: sans-serif;
}

body {
    min-height: 100vh;
    overflow-x: hidden;
    width: 100vw;
}

img {
    max-width: 100%;
    height: auto;
}

button{
  border: none; background: none;
}

/* 头部样式 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: #fff;
    z-index: 1000;
}

.container {
    max-width: 1920px;
    margin: 0 auto;
    padding: 0 40px;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100px;
    position: relative;
	max-width:1400px;
	margin:0 auto;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 30px;
}

.header-center {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.menu-btn, .home-btn {
    display: block;
}

.menu-btn img, .home-btn img {
    width: 24px;
    height: 24px;
}

.logo img {
    height: 50px;
}

/* 导航样式 */
.nav {
    position: fixed;
    top: 100px;
    left: 0;
    width: 100%;
    background: #fff;
    display: none;
    border-top: 1px solid #eee;
	z-index:100;
}

.nav.active {
    display: block;
}

.icon-show{
  display: inline-block;
}

.icon-closed{
  display: none;
}

.menu-open .icon-show{
  display: none;
}

.menu-open .icon-closed{
  display: inline-block;
}

.nav-main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px;
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 30px;
}

.nav-list {
    display: contents;
}

.nav-list > li {
    padding: 20px;
}

.nav-list > li > a {
    font-size: 18px;
    color: #333;
    font-weight: 500;
    margin-bottom: 20px;
    display: block;
}

.submenu {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.submenu a {
    color: #666;
    font-size: 16px;
    transition: color 0.3s;
}

.submenu a:hover {
    color: #e60012;
}

/* 右侧功能区 */
.header-right {
    display: flex;
    align-items: center;
    gap: 30px;
}

.online-btn {
    display: inline-block;
    padding: 8px 24px;
    color: #999;
    background: #fff;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 16px;
    transition: all 0.3s;
}

.online-btn:hover {
    background: #333;
    color: #fff;
}

.lang {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #999;
}

.lang a {
    color: #999;
    font-size: 16px;
}

.lang a.active {
    color: #222;
}

.lang span {
    color: #ddd;
}

.search-btn {
    cursor: pointer;
}

.search-btn i {
    font-size: 20px;
    color: #333;
}

/* 搜索框样式 */
.search-panel {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(255, 255, 255, 0.98);
    z-index: 1001;
    display: none;
}

.search-panel.active {
    display: block;
}

.search-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 200px 20px 0;
}

.search-box {
    position: relative;
    width: 100%;
}

.search-box input {
    width: 100%;
    height: 60px;
    border: none;
    border-bottom: 1px solid #333;
    background: none;
    font-size: 24px;
    padding: 0 40px 0 0;
    color: #333;
}

.search-box input:focus {
    outline: none;
}

.search-box input::placeholder {
    color: #999;
}

.search-close {
    position: absolute;
    right: 0;
    top: -30px;
    transform: translateY(-50%);
    cursor: pointer;
    background: none;
    border: none;
    padding: 10px;
}


.search-find {
    position: absolute;
    right: 0;
    top: 55%;
    transform: translateY(-50%);
    cursor: pointer;
    background: none;
    border: none;
    padding: 10px;
}


@media screen and (min-width: 768px) {
.nav-mobile-bottom{
	display:none;
}
}

/* 移动端样式 */
@media screen and (max-width: 768px) {

   .container{
    padding: 0 20px;
   }


    body.menu-open {
        overflow: hidden;
    }

    .header {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        background: #fff;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    }

    .header .online-btn{
        display: none;
    }
    
    .search-btn{
        display: none;
    }

    .home-btn{
      display: none;
    }

    .nav {
        position: fixed;
        top: 90px;
        left: 0;
        width: 100%;
        height: calc(100vh - 60px);
        background: #fff;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        z-index: 1000;
    }

    .nav.active {
        transform: translateX(0);
    }

    .nav-main {
        padding: 20px;
        display: block;
        height: 100%;
        display: flex;
        flex-direction: column;
    }

    .nav-list {
        flex: 1;
        margin-bottom: 20px;
    }

    .nav-list > li {
        margin: 0;
        border-bottom: 1px solid #eee; 
        padding-top: 7px;
        padding-bottom: 7px;
    }

    .nav-list > li > a {
        display: block;
        padding: 0px 0;
        font-size: 16px;
        position: relative;
    }

    .nav-list > li.has-submenu > a:after {
        content: '';
        position: absolute;
        right: 0;
        top: 50%;
        width: 10px;
        height: 10px;
        border-right: 2px solid #666;
        border-bottom: 2px solid #666;
        transform: translateY(-50%) rotate(45deg);
        transition: transform 0.3s;
    }

    .nav-list > li.has-submenu.active > a:after {
        transform: translateY(-50%) rotate(-135deg);
    }

    .submenu {
        display: none;
        padding: 0 0 15px 20px;
    }

    .submenu a {
        display: block;
        padding: 10px 0;
        font-size: 14px;
        color: #666;
    }

    .nav-mobile-bottom {
        padding-top: 20px;
        border-top:none;
    }

    .mobile-online-btn {
        display: block;
        width: 100%;
        padding: 12px 0;
        text-align: center;
        color: #333;
        background: #f5f5f5;
        border-radius: 4px;
        margin-bottom: 20px;
        font-size: 16px;
    }

    .mobile-lang {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 15px;
    }
    
    .mobile-lang {
        display: none;
    }

    .mobile-lang a {
        color: #666;
        font-size: 16px;
    }

    .mobile-lang a.active {
        color: #333;
    }

    .mobile-lang span {
        color: #ddd;
    }

    .search-container {
        padding: 80px 20px 0;
    }

    .search-box input {
        height: 50px;
        font-size: 18px;
        padding-right: 30px;
    }

    .search-close {
        padding: 8px;
    }

    .nav-main{
      gap:15px;
    }

    .nav-list > li > a{
      margin-bottom: 10px;
    }

    .logo img{
      height: 40px;
    }
}


@media screen and (max-width: 468px) {

  .container{
   padding: 0 15px;
  }

  .logo img{
    height: 36px;
  }

}

/* Footer Section */
.footer-section {
  width: 100%;
  color: #fff;
  background: url('../images/footer.jpg') center center no-repeat;
  background-size: 100% 100%;
}
.footer-bg {
  width: 100%;
  
  padding: 0;
}
.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  max-width: 1440px;
  margin: 0 auto;
  padding: 60px 20px 30px 20px;
  border-bottom: 1px solid #999999;
}
.footer-col {
  flex: 1;
  min-width: 220px;
  margin: 0 40px;
}
.footer-title {
  font-size: 24px;
  font-weight: bold;
  margin-bottom: 27px;
}
.footer-info {
  display: flex;
  align-items: flex-start;
  margin-bottom: 18px;
  flex-direction:column;
  gap:6px;
}
.footer-label {
  min-width: 60px;
  color: #999999;
  font-size: 15px;
  margin-right: 8px;
}
.footer-value {
  color: #999;
  font-size: 15px;
  word-break: break-all;
}
.footer-links .footer-link-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links .footer-link-list li {
  margin-bottom: 6px;
  border-bottom: 1px solid #999999;
  position: relative;
  padding-right: 28px;
}


.footer-links .footer-link-list a {
  color: #999;
  font-size: 16px;
  text-decoration: none;
  display: block;
  padding: 8px 0;
  transition: color 0.2s;
}
.footer-links .footer-link-list a:hover {
  color: #AD191E;
}
.footer-links .footer-link-list li::after {
  content: '\2192';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  color: #999999;
  font-size: 18px;
}
.footer-consult .footer-desc {
  color: #fff;
  font-size: 15px;
  margin-bottom: 18px;
  opacity: 0.85;
}
.footer-btn {
  width: 100%;
  background: #AD191E;
  color: #fff;
  border: none;
  font-size: 16px;
  padding: 16px 0;
  border-radius: 2px;
  margin-bottom: 28px;
  cursor: pointer;
  transition: background 0.2s;
}
.footer-btn:hover {
  background: #8d1518;
}
.footer-socials {
  display: flex;
  gap: 16px;
}
.footer-social {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid #999999;
  border-radius: 4px;
  background: transparent;
  transition: border-color 0.2s, background 0.2s;
}
.footer-social img {
  width: 18px;
  height: 18px;
  object-fit: contain;
}


.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
  padding: 18px 40px 18px 40px;
  color: #999999;
  font-size: 15px;
}

.footer-bottom a{
	color: #999999;
}

.footer-tech {
  color: #999999;
}
@media (max-width: 900px) {
  .footer-container {
    flex-direction: column;
    padding: 40px 10px 20px 10px;
    gap: 30px;
  }
  .footer-col {
    margin: 0 0 24px 0;
  }
  .footer-title {
    font-size: 22px;
    margin-bottom: 18px;
    padding-left: 10px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    padding: 12px 10px 12px 10px;
    font-size: 13px;
  }
  .footer-btn {
    font-size: 16px;
    padding: 12px 0;
	 
	
  }
  .footer-social {
    width: 38px;
    height: 38px;
  }
  .footer-social img {
    width: 20px;
    height: 20px;
  }
}

@media (max-width: 500px) {
    .footer-col{
        width: 100% !important;
    }
	
	.footer-consult{
		text-align:center;
	}

    .footer-title{
        text-align: center;
    }

    .footer-consult .footer-desc{
        text-align: center; font-size:12px;
    }

    .footer-socials{
        width: 100%;  justify-content: center;
    }
	
	.footer-btn {
		width:40vw; padding: 9px 0; border-radius: 3px;
	}
	
	.product-tabs{
		justify-content:center;
	}
	
	.about-data{
		display:flex; justify-content:space-between; padding:0 15px;
	}
	
	.header .container{
	    height: 70px;
	}
	
	.nav{
	    top:60px;
	}
	
	
	
	.footer-bottom a{
	    display: inline-block;
	}
	
	.footer-copyright{
	    text-align: center;
	}




}