*{
    margin: 0;
    padding: 0;
    /* 边际为0，即铺满整个页面 */
}
a {
    text-decoration: none !important;
	/* 所有的超链接a标签不带下划线，使用!important提高优先级 */
}

/* 导航栏 开始 */
.header {
  background: rgb(25, 56, 83);
  height: 60px;
  line-height: 60px;
  box-shadow: 2px 3px 5px #04133d;
}

.box {
  z-index: 1000;
  width: 100%;
  display: flex;
  position: fixed;
  background-color: rgb(25, 56, 83);
  justify-content: center;
  align-items: center;
  padding: 0 20px;
}

.logo {
  height: 60px;
  line-height: 105px;
  margin-right: 10px;
  position: relative;
  left: 0px;
}

.nav ul, .nav li {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav {
  display: flex;
  position: relative;
  left: 5px;
  height: 65px;
  margin: 0;
  flex-grow: 0;
  gap: 10px; /* 修改此处：原20px → 现10px（缩小50%） */
  justify-content: center; /* 新增：确保元素水平居中 */
}

.nav a {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  color: #fff;
  font-size: 15px;
  padding: 0 15px; /* 调整：原20px → 现15px（辅助间距控制） */
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: 1px; /* 调整：原3px → 现2px（优化文字密度） */
}

.nav > .item {
  height: 100%;
  position: relative;
  transition: .4s;
}

.list {
  position: absolute;
  width: 114px;
  top: 65px;
  display: none;
  transition: .4s;
  background-color: #037dc4;
  left: 50%;
  transform: translateX(-50%);
}

.list a {
  position: relative;
  width: 100%;
  flex-wrap: wrap;
}

.itemTwo {
  height: 40px;
  transition: .4s;
}

.itemTwo a {
  text-decoration: none;
}

.nav > .item:hover {
  background-color: #037dc4;
}

.nav > .item:hover > .list {
  display: block;
  max-height: 500px;
  padding: 8px 10px;
  color: #fff;
}

.itemTwo:hover {
  background-color: rgba(255, 255, 255, .3);
}

.home-language {
  position: relative;
  left: 0px;
  display: flex;
  align-items: center;
  margin-left: 5px;
  margin-top: -15px;
  line-height: 20px;
  color: #69d0ff;
}

.home-language a {
  font-size: 16px;
  color: #fff;
  margin: 0 6px; /* 调整：原8px → 现6px（语言切换间距优化） */
  letter-spacing: 1px; /* 调整：原2px → 现1px（文字密度优化） */
}

.home-language a:hover {
  color: #6bd0ff;
}
/* 导航栏 结束 */



/* banner 开始 */
.about-banner{
    display: flex;
}

.about-banner img{
    display: block;
    margin: auto;
    width: 100%;
    height: 400px;
}

/* 关于我们标题 开始*/
.product-title{
  display: flex;
  justify-content: center; 
  align-items:center;
  /* 标签居中对齐 */

  /* text-align: center; */
  /* 对内部文本居中 */
}
.product-title a{
  text-decoration: none;
  /* 超链接去掉下划线 */
}

/* 灰色线 */

.section-header {
  position: relative;
  max-width: 600px;
  margin: 0 auto 60px auto;
  padding-bottom: 25px;
}

.section-header h2 {
  color: #666666;
  font-size: 35px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 6px;
  text-align: center;
}

.section-header::after {
  content: '';
  position: absolute;
  display: inline-block;
  width: 100px;
  height: 5px;
  background: #cccccc;
  border-radius: 0 0 5px 5px;
  bottom: 0;
  left: calc(50% - 50px);
}

.section-header p {
  font-size: 22px;
  font-weight: 300;
  text-align: center;
  margin: 0;
}
/* 关于我们标题 结束 */

/* about start */

.container{
    margin-top: -30px;
    width:70%;
    padding-right:15px;
    padding-left:15px;
    margin-right:auto;
    margin-left:auto
}


@media (min-width:576px){
    .container{max-width:540px}
}

@media (min-width:768px){
    .container{max-width:720px}
}

@media (min-width:992px){
    .container{max-width:960px}
}
@media (min-width:1200px){
    .container{max-width:1140px}
}

.container-fluid{
    width:100%;
    padding-right:15px;
    padding-left:15px;
    margin-right:auto;
    margin-left:auto
}

.row{
    margin: 50px 50px 50px 50px;
    display:flex;
    /* -ms-flex-wrap:wrap; */
    /* flex-wrap:wrap; */
    margin-right:-15px;
    margin-left:-15px
}

.about-content{
    box-shadow: 0px 1px 2px rgb(13, 41, 65);
}



.about-content:hover{
    box-shadow: 1px 2px 6px rgb(13, 41, 65);
}

.about-content h2{
  margin-bottom: 5px;
  letter-spacing: 2px;
  color: #04133d;
}

.about-content p{
  color: #494949;
}

.abour-list{
  color: #494949;
  margin-left: 25px;
}

.abour-list li{
  margin-bottom: 5px;
}

.col-md-3{
    -ms-flex:0 0 25%;
    flex:0 0 25%;max-width:25%}

.col-md-4{
    -ms-flex:0 0 33.333333%;
    flex:0 0 33.333333%;
    max-width:33.333333%
}

.col-md-5{
    -ms-flex:0 0 41.666667%;
    flex:0 0 41.666667%;
    max-width:41.666667%
}

.col-md-6{
    width: 1000px;
    margin: 20px;
    -ms-flex:0 0 50%;
    flex:0 0 60%;
    max-width:45%
}

.col-md-6 img{
    box-shadow: 1px 2px 5px rgb(13, 41, 65);
}
.col-md-6 img:hover{
    width: 105%;
    height: 105%;
    box-shadow: 10px 15px 15px rgb(13, 41, 65);
}

.col-md-7{
    -ms-flex:0 0 58.333333%;
    flex:0 0 58.333333%;
    max-width:58.333333%
}

.col-md-8{
    -ms-flex:0 0 66.666667%;
    flex:0 0 66.666667%;
    max-width:66.666667%
}

.col-md-9{
    -ms-flex:0 0 75%;flex:0 0 75%;max-width:75%}
    
.col-md-10{
    -ms-flex:0 0 83.333333%;
    flex:0 0 83.333333%;
    max-width:83.333333%}
    
.col-md-11{
    -ms-flex:0 0 91.666667%;
    flex:0 0 91.666667%;max-width:91.666667%}
    
.col-md-12{
    -ms-flex:0 0 100%;
    flex:0 0 100%;
    max-width:100%}

.col-md-12 img{
    box-shadow: 2px 2px 5px rgb(13, 41, 65);
}

.about-img:hover{
  box-shadow: 2px 3px 5px rgb(13, 41, 65);
}

.col-md-12 img:hover{
    width: 120%;
    height: 120%;
    box-shadow: 10px 15px 15px rgb(13, 41, 65);
}

.order-md-first{
    -ms-flex-order:-1;order:-1}

.order-md-last{-ms-flex-order:13;order:13}
.order-md-0{-ms-flex-order:0;order:0}
.order-md-1{-ms-flex-order:1;order:1}
.order-md-2{-ms-flex-order:2;order:2}
.order-md-3{-ms-flex-order:3;order:3}
.order-md-4{-ms-flex-order:4;order:4}
.order-md-5{-ms-flex-order:5;order:5}
.order-md-6{-ms-flex-order:6;order:6}
.order-md-7{-ms-flex-order:7;order:7}
.order-md-8{-ms-flex-order:8;order:8}
.order-md-9{-ms-flex-order:9;order:9}


.section-header {
    position: relative;
    max-width: 600px;
    margin: 0 auto 60px auto;
    padding-bottom: 25px;
}

.section-header h2 {
    color: #666666;
    font-size: 35px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 6px;
    text-align: center;
}

.section-header::after {
    content: '';
    position: absolute;
    display: inline-block;
    width: 100px;
    height: 5px;
    background: #cccccc;
    border-radius: 0 0 5px 5px;
    bottom: 0;
    left: calc(50% - 50px);
}

.section-header p {
    font-size: 22px;
    font-weight: 300;
    text-align: center;
    margin: 0;
}

.about,
.single {
    position: relative;
    padding: 90px 0 60px 0;
    background: #f2f2f2;
}

.about .col-md-12,
.about .col-md-6,
.single .col-md-12,
.single .col-md-6 {
    margin-bottom: 30px;
}

.about .about-img,
.single .single-img {
    position: relative;
    overflow: hidden;
}

.about .about-img img,
.single .single-img img {
    width: 100%;
}

.about .about-content,
.single .single-content {
    position: relative;
    width: 80%;
    margin: -100px auto 0 auto;
    padding: 30px;
    background: #ffffff;
}

.about .about-content h2,
.single .single-content h2 {
    font-size: 25px;
    font-weight: 700;
}

.about .about-content p,
.single .single-content p {
    font-size: 16px;
    font-weight: 300;
}

.about .btn,
.single .btn {
    font-size: 14px;
    letter-spacing: 1px;
    color: #ffffff;
    background: #999999;
    border-radius: 0;
}

.about .btn:hover,
.single .btn:hover {
    background: #4F84C4;
}

/* 图片触碰略微放大效果 */
.img-fluid {
    transition: transform 0.3s ease; /* 放大动画效果 */
    max-width: 100%;
    height: auto;
}
 
.img-fluid:hover {
    transform: scale(1.1); /* 鼠标悬停时放大10% */
    box-shadow: 2px 2px 5px rgb(13, 41, 65);
}
/* about end */


/* 工厂图片 开始 */

*,::after,::before{box-sizing:border-box}
 
@media (min-width:992px){.about-container{max-width:960px}}

@media (min-width:1200px){.about-container{max-width:1140px}}

@media (min-width:1400px){.about-container{max-width:1320px}}

.about-row{
  --bs-gutter-x:1.5rem;--bs-gutter-y:0;
  display:flex;flex:1 0 100%;flex-wrap:wrap;
  margin-top:calc(var(--bs-gutter-y) * -1);
  margin-right:calc(var(--bs-gutter-x)/ -2);
  margin-left:calc(var(--bs-gutter-x)/ -2)}

.about-row>*{
  flex-shrink:0;
  width:100%;
  max-width:100%;
  padding-right:calc(var(--bs-gutter-x)/ 2);
  padding-left:calc(var(--bs-gutter-x)/ 2);
  margin-top:var(--bs-gutter-y)}

.about-col-12{flex:0 0 auto;width:100%}

.about-col-md-6{flex:0 0 auto;width:50%}

.tech_startups_area .about-container {
  width: 75%;
  max-width: 100%px;
  margin: auto;
}
@media only screen and (max-width: 767px) {
  .tech_startups_area .about-container {
    max-width: 576px;
  }
}
.tech_startups_banner .about-row {
  margin-top: -35px;
  margin-right: -8px;
  margin-left: -8px;
}
.tech_startups_banner .about-col-lg-6 {
  padding-right: 8px;
  padding-left: 8px;
}
@media only screen and (max-width: 767px) {
  .tech_banner_left {
    margin-bottom: 25px;
  }
}
.tech_banner_left .tech_banner_thumb {
  margin-bottom: 25px;
}
@media only screen and (max-width: 767px) {
  .tech_banner_left .tech_banner_thumb {
    margin-bottom: 25px;
  }
}
.tech_banner_left .tech_banner_thumb:last-child {
  margin-bottom: 0;
}


.tech_banner_thumb {

  position: relative;
  overflow: hidden;
  transition: .5s;
}
.tech_banner_thumb:hover {
  box-shadow: 2px 3px 6px rgb(13, 41, 65);
  opacity: 0.9;
  transform: scale(1.02);
}
.tech_banner_thumb img {

  transition: .5s;
}
.tech_banner_thumb::before {
  position: absolute;
  content: "";
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(0deg, #000, transparent 50%);
  transition: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
  pointer-events: none;
}

.tech_startups_title {
  text-align: center;
  margin-bottom: 90px;
}
@media only screen and (min-width: 992px) and (max-width: 1199px) {
  .tech_startups_title {
    margin-bottom: 60px;
  }
}
@media only screen and (min-width: 768px) and (max-width: 991px) {
  .tech_startups_title {
    margin-bottom: 40px;
  }
}
@media only screen and (max-width: 767px) {
  .tech_startups_title {
    margin-bottom: 25px;
  }
}
.tech_startups_title h3 {
  color: #272727;
  font-family: "Merriweather", serif;
  font-size: 48px;
  font-weight: 400;
  line-height: 60px;
  text-align: center;
  letter-spacing: -1.411765px;
  margin-bottom: 0;
}
@media only screen and (min-width: 992px) and (max-width: 1199px) {
  .tech_startups_title h3 {
    font-size: 37px;
    line-height: 38px;
  }
}
@media only screen and (min-width: 768px) and (max-width: 991px) {
  .tech_startups_title h3 {
    font-size: 35px;
    line-height: 40px;
  }
}
@media only screen and (max-width: 767px) {
  .tech_startups_title h3 {
    font-size: 22px;
    line-height: 31px;
    letter-spacing: 0;
  }
}

.tech_banner_text {
  position: absolute;
  left: 50px;
  bottom: 45px;
  pointer-events: none;
}
@media only screen and (min-width: 992px) and (max-width: 1199px) {
  .tech_banner_text {
    left: 30px;
    bottom: 30px;
  }
}
@media only screen and (min-width: 768px) and (max-width: 991px) {
  .tech_banner_text {
    left: 20px;
    bottom: 20px;
  }
}
@media only screen and (max-width: 767px) {
  .tech_banner_text {
    left: 15px;
    bottom: 20px;
  }
}
.tech_banner_text h3 {
  color: #ffffff;
  font-family: "Merriweather", serif;
  font-size: 38px;
  font-weight: 400;
  line-height: 48px;
  letter-spacing: -1.117647px;
  margin-bottom: 0;
}
@media only screen and (min-width: 1200px) and (max-width: 1600px) {
  .tech_banner_text h3 {
    font-size: 30px;
    line-height: 38px;
  }
}

@media only screen and (min-width: 992px) and (max-width: 1199px) {
  .tech_banner_text h3 {
    font-size: 25px;
    line-height: 30px;
  }
}
@media only screen and (min-width: 768px) and (max-width: 991px) {
  .tech_banner_text h3 {
    font-size: 20px;
    line-height: 25px;
  }
}
@media only screen and (max-width: 767px) {
  .tech_banner_text h3 {
    font-size: 18px;
    line-height: 28px;
  }
}

/* 四张工厂图片 */
.about-factory-imgs{
  display: flex;
  width: 76%;
  margin: auto;

}
.about-factory-img01{
  margin-top: 8px;
  padding: 12px;
  text-align: center;
  flex-direction: column;
}

.about-factory-img01 p{
  letter-spacing: 3px;
  /* 字间距 */
  font-size: 18px;
  color: #04133d;
  border: 1px solid #04133d;
  /* 给文本加边框 */
  padding: 3px;
  /* 边框内边距设置 */
  box-shadow: 0px 0.5px 0.5px #3164f0;
}
.about-factory-image {
  transition: transform 0.3s ease; /* 放大动画效果 */
  max-width: 100%;
  height: auto;
}

.about-factory-image:hover {
  transform: scale(1.05); /* 鼠标悬停时放大10% */
  box-shadow: 2px 2px 5px rgb(13, 41, 65);
}

/* 工厂图片结束 */


/* 底部导航栏开始 */
.footer {
  width: 100%;
  padding: 30px 0;
  background-color: rgb(25, 56, 83);
  position: relative;
  z-index: 0;
}

.footer-info {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  padding: 0 20px;
  box-sizing: border-box;
}

.addr {
  flex: 1;
  min-width: 250px;
  max-width: 300px;
  text-align: left;
  padding: 0 10px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transform: translateY(15px);
}

.addr img {
  width: 180px;
  margin-bottom: 10px;
  margin-left: 0;
  transform: translateX(30px);
}

.addr h3 {
  font-size: 20px;
  color: #ffffff;
  margin: 5px 0;
  white-space: nowrap;
}

.addr span, .addr p {
  font-size: 14px;
  color: #ffffff;
  margin: 8px 0;
  line-height: 1.5;
  white-space: nowrap;
}

.footer-links {
  flex: 2;
  min-width: 450px;
  display: flex;
  justify-content: space-between;
  gap: 15px;
  margin: 0;
  padding: 0 10px;
}

.footer-links dl {
  text-align: center;
  margin: 0;
  flex: 1;
  min-width: 0;
  position: relative;
}

.footer-links dl:nth-child(3){
  transform: translateY(10px);
} 

.footer-links dt {
  margin-bottom: 12px;
  font-size: 18px;
  color: #ffffff;
  padding-bottom: 5px;
  border-bottom: 1px solid rgba(255,255,255,0.2);
  display: flex;
  justify-content: center;
}

.footer-links dt a {
  color: #ffffff;
  display: inline-block;
  padding: 0 10px;
}

.footer-links dt a:hover {
  color: #4db8ff;
}

.footer-links dd {
  padding: 6px 0;
}

.footer-links dd a {
  font-size: 15px;
  color: #ffffff;
  display: block;
  transition: color 0.3s;
  padding: 2px 0;
}

.footer-links dd a:hover {
  color: #4db8ff;
}

.footer-weixin {
  flex: 1;
  min-width: 150px;
  max-width: 180px;
  text-align: center;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center; /* 添加居中对齐 */
  justify-content: center; /* 垂直居中 */
  transform: translateY(40px);
}

.footer-weixin img {
  width: 100px;
  height: 100px;
  margin: 0 auto;
}

.footer-weixin p {
  color: #fff;
  font-size: 14px;
  margin-top: 8px;
  width: 100px;
  flex-shrink: 0;
  text-align: center; /* 文字居中 */
  transform: translateX(0px); /* 移除水平偏移 */
}

.home-copyright {
  display: flex;
  height: 45px;
  background-color: rgb(13, 41, 65);
  position: relative;
  z-index: 0;
}

.home-copyright p {
  margin: auto;
  letter-spacing: 1px;
  text-align: center;
  color: #fff;
  font-size: 14px;
}

.home-copyright p a img {
  margin: 5px 0px -10px 10px;
  width: 28px;
}

/* 响应式调整 */
@media (max-width: 1024px) {
  .footer-info {
      gap: 15px;
  }
  
  .footer-links {
      gap: 10px;
      min-width: 400px;
  }
}

@media (max-width: 768px) {
  .footer-info {
      flex-direction: column;
      align-items: center;
      gap: 25px;
  }
  
  .addr, .footer-links, .footer-weixin {
      width: 100%;
      max-width: 500px;
      text-align: center;
      padding: 0;
  }
  
  .addr {
      white-space: normal;
      text-align: center;
  }
  
  .addr img {
      margin: 0 auto 15px;
  }
  
  .footer-links {
      flex-direction: column;
      min-width: unset;
      gap: 20px;
  }
  
  .footer-links dl {
      margin-bottom: 15px;
  }
  
  .footer-weixin {
      margin-top: 10px;
      height: auto;
      transform: none;
  }
}

@media (max-width: 480px) {
  .addr h3, .addr span, .addr p {
      white-space: normal;
  }
  
  .footer-links {
      gap: 15px;
  }
  
  .footer-links dt a {
      padding: 0 5px;
  }
}

/* 底部导航栏结束 */