* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Microsoft YaHei', Arial, sans-serif;
        }
        
        body {
            color: #333;
            line-height: 1.6;
            font-size: 1rem;
             font-family: ‘microsoft yahei’ ; 
        }
       
        
        /* 顶部导航栏 */
header {
  background: #ffffffcc;
  position: fixed;
  width: 100%;
  height: 60px;
  opacity: 1;
  top: 0;
  z-index: 1000;
  display: flex;
}

.nav-container {
  display: flex;
  align-items: center;
  width: 100%;
  height: 3.75rem;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 40px;
  width: 28px;
  height: 28px;
  margin-left: 295px;
  margin-top: 16px;
  margin-bottom: 16px;
}

.logo-img {
  position: absolute;
  height: 28px;
  width: 28px;
}


.navbar {
  margin: 10px 0;
}

nav ul {
  display: flex;
  list-style: none;
  margin: 0px 0 0 51px;
}

nav ul li {
  margin: 0 32px;
  position: relative;
  width: 80px;
  height: 27px;
  text-align: left;
  font-size: 20px;
  font-weight: 400;
  font-family: "Microsoft YaHei UI";
}

nav ul li a {
  text-decoration: none;
  color: #333;
  font-weight: 500;
  padding: 5px 0;
  transition: color 0.3s;
}

nav ul li a:hover {
  color: #0eb28e;
}

nav ul li a::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  transition: width 0.3s;
}

nav ul li a:hover::after {
  width: 100%;
}

@media screen and (max-width: 1440px) {
  header {
      max-width: 90rem;
  }
  footer {
      max-width: 90rem;
  }
}
        
        /* 背景图 */
.banner1 {
    top: 20px;
    height: 100%;
    object-fit: cover;
    width: 100%;
    display: block;
    margin-top: 0; /* 确保图片顶部与导航栏底部相接 */
}
.banner-content{
    margin-top: 0; 
}
.banner-content img{
   width: 100%;
   height: auto;
    /* display: block; */
}
.image-content{
    display: flex;
    flex-direction: column;
    margin-top: 0;
}

        
        /* 主体内容 */
        .main-content {
           width:100%;
           height:auto;
           opacity: 1;
           background: linear-gradient(180deg, #ecfaf9 0%, #d6f8f6 99%);
           background: #ffffff;
        }
        .text{
            width: 100%;
            height: 67px;
            opacity: 1;
            margin: 72px auto 0;
            position: relative;
            display: flex;
            justify-content:center;

        }
        .text h2 {
                width: 100%;
                height: 67px;
    opacity: 1;
    color: #132621;
    text-align: center;
    font-size: clamp(3rem, 1.5vw, 3rem);
    font-weight: 700;
    font-family: "Alibaba PuHuiTi 2.0";
    position: absolute;
    z-index: 1;
        }


    /* 下划线 */
.unline{
width: 66px;
height: 23px;
opacity: 0.4000000059604645;
background: linear-gradient(90deg, #5ce8cc 0%, #08d29b 100%);
position: absolute;
    margin: 38px auto 4px;
}
            
/* 鑫元人 */
        .section {
            display: flex;
            align-items: center;
            width :  100%;   
            height :  auto;        
            opacity :  1;
            border-radius: 12px;

        }
        
        .section:nth-child(even) {
            flex-direction: row-reverse;
        }
        
        .section-text{
            flex: 1;
            margin :  0px;        
            width :  100%;        
            height :  400px;
            padding: 45px 0;
        }
         .section-image {
            text-align :  center;        
            width :  610px;        
            height :  295px;        
            margin :  auto;
         }
         .xh2{
            display: flex;
            /* justify-content: center; */
         }
        .section-text h2 {
            margin :  55px 0 18px 32px ;  
            height: 39px;
            opacity: 1;
            color: #132621;
            text-align: left;
            font-size: clamp(1rem, 1.5vw, 1.625rem);
            font-weight: 700;
            font-family: "Alibaba PuHuiTi 2.0";
        }
        
        .section-text p {
            margin :  18px 0px 15px 32px;      
              width :  auto;              
              opacity :  1;        
              color :    #383e3b;        
              text-align :  left;        
              font-size :  clamp(1rem, 1.5vw, 1.125rem);        
              font-weight :  400;        
              font-family :  "Microsoft YaHei UI";
        }
    
        
        .section-image img {
            max-width: 100%;
            width: 610px;
            height: 295px;

        }

        @media screen and (max-width: 1920px) {
            .section-image {
              margin-right:  10rem;
            }
            .section-text {
              margin-left: 10rem;
            }
          }
          @media screen and (max-width: 1440px) {
            .section-image {
              margin-right:  0;
              margin-left: 15px;
            }
            .section-text {
              margin-left: 0;
            }
          }
          @media screen and (min-width: 1921px) {
            .section-image {
              margin-right:  10rem;
            }
            .section-text {
              margin-left: 10rem;
            } 
          }

        .ad-content {
            /* 按钮  */
            margin-top: 62px;
        }
        
        .ad-content h3 {
            font-size: clamp(1rem, 1.5vw, 1.25rem);
            margin-bottom: 15px;
            color: #333;
        }
        
        .ad-content ul {
            display: flex;
            list-style: none;
            padding: 0;
            margin: 0 -8px;
            flex-wrap: wrap;
        }
        
        .ad-content li {
            margin :  0 36px;        
            padding-left :  25px;        
            position :  relative;        
            white-space :  nowrap;           
            width :  80px;        
            height :  21px;        
            opacity :  1;        
            color :    #383e3b;        
            text-align :  left;       
            font-size :  1rem;        
            font-weight :  400;
        }
        
        .ad-content li::before {
            content: "";
      position: absolute;
      left: 0;
      top: 0;
      width: 18px;
height: 18px;
border-radius: 100px;
opacity: 1;
border: 1.3px solid #c1c8c6;
margin: 3px 0 0 0;
    }
    
    /* 对勾图标 */
    .ad-content li::after {
      content: "";
    position: absolute;
    left: 4.5px;
    top: 5px;
    width: 8.5px;
    height: 5.5px;
    transform: rotate(-45deg);
    opacity: 1;
    border: 1.5px solid #0eb28e;
    border-top: none;
    border-right: none;
    margin: 3px 0 0 0;
    }
        
        .btn{
            display: flex;
    width: 620px;
    height: 55px;
    border-radius: 6px;
    opacity: 1;
    margin: 12px 0 32px 35px;
    color: white;
    text-decoration: none;
    font-weight: 500;
    gap: 16px;

        }
        .bt1{
            width: 54px;
            height: 55px;
            opacity: 1;
        }
         .bt1 img{
            width: 54px;
            height: 55px;
            opacity: 1;
        }
        .learn-more-btn {
          width :  78px;          
          height :  26px;        
          opacity :  1;        
          color :    #ffffff;    
         margin: 13px;      
         text-decoration: none;    
            
        }
        
        .learn-more-btn:hover {
            color: #0055aa;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }
 /* 第五部分 */

.h2{
        width:auto;
    height: 67px;
    opacity: 1;
    color: #132621;
    text-align: center;
    font-size: clamp(3rem, 1.5vw, 3rem);
    font-weight: 700;
    font-family: "Alibaba PuHuiTi 2.0";
        position: absolute;
    z-index: 1;
}
.hw2{
    width:auto;
    height: 67px;
    opacity: 1;
    color: #132621;
    text-align: center;
    font-size: clamp(3rem, 1.5vw, 3rem);
    font-weight: 700;
    font-family: "Alibaba PuHuiTi 2.0";
        position: absolute;
    z-index: 1;
    margin: 24px 0 0 0;
}

.data-title {
    font-size: clamp(1rem, 1.5vw, 2rem);
    color: #333;
    position: relative;
    padding-bottom: 15px;
    margin-bottom: 30px;
}

.data-title::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 5px;
    height: 3px;
    background: #4CAF50;
}
.tu{
         display: flex;
    justify-content:center;
     flex : center;
    align-items: center;
    width: 1920px;
    height: 400px;
    opacity: 1;
    position: relative;
    margin: -88px 0;
}

.pp{
     width: 1536px;
 height: 72px;
 opacity: 1;
 color: #383e3b;
 text-align: center;
 font-size: clamp(1rem, 1.5vw, 1.125rem);
 font-weight: 400;
 font-family: "Microsoft YaHei UI";
 line-height: 36px;
     margin: 0 192px ;
}


.tup1{
    max-width: 100%;
    max-height: 100%;
}
.content-wrapper img{
    width: 100%;
}
 .content-wrapper {
    text-align: center;
    width: 100%;
    height: auto;
    opacity: 1;
    display: flex;
}
        .beij{
            position: absolute;
            width: 100%;
    max-width: 1920px;
        }
.box1{
    width: 100%;
    height: auto;
    opacity: 1;
    background: #ffffff;
    position: relative;
}
.c1{
    position: relative;
    width: 100%;
            height: 67px;
            opacity: 1;
            color: #132621;
            text-align: left;
            font-size: clamp(2rem, 1.5vw, 3rem);
            font-weight: 700;
            font-family: "Alibaba PuHuiTi 2.0";
            margin: 72px auto 0;
            justify-content: center;
    display: flex;

}
  /* 图片网格布局 */
        .grid-container {
            display: flex;
    gap: 40px;
   margin-top: 40px;
    height: 468px;
     width: 100%;
     text-align: center;
     justify-content: center;
     margin: 2.8125rem auto 0;


}
     

        .grid-item {
     display: flex;
    flex-flow: column;
    align-items: center;
    border-style: solid;
    position: relative;
    width: 361px;
height: 375px;
border-radius: 6.29px;
opacity: 1;
border: 1px solid #22c7a3;
background: #f8fffd;
        }

        .grid-item img {
   width: 100%;
   height: 100%;
    object-fit: cover;
    display: block;
    margin-top: 0;
}
       
        
        .grid-img{
               width: 100%;
    height: 100%;
    overflow: hidden;
    margin: auto;
    display: flex;
    justify-content: center;
    border-radius: 8px
        }
        .grid-p{
                width: 100%;
                height: 68px;
    opacity: 1;
    color: #383e3b;
    font-size: 24px;
    font-weight: 400;
    font-family: "Microsoft YaHei UI";
    line-height: 56px;
    text-align: center;
        }

       
             /* 新增响应式样式 - 基于Flex布局 */
@media (max-width: 1440px) {
    .grid-container {
        /* 当屏幕宽度小于1200px时，改为纵向排列 */
        /* 调整边距和宽度以适应纵向布局 */
        margin: 40px auto;
        width: 90%;
        max-width: 1600px;
        height: auto;
    }
    
    .grid-item {
        /* 纵向排列时每个项目占据全部宽度 */
        width: 70%;
        margin-bottom: 20px; /* 增加纵向间距 */
        margin: auto;
    }
}
.custom-underline {
            position: relative;
            display: flex;
            width: 100%;
            height: 67px;
            color: #132621;
            text-align: center;
            font-size: clamp(2rem, 1.5vw, 3rem);
            font-weight: 700;
            font-family: "Alibaba PuHuiTi 2.0";
            margin: 54px auto ;
            justify-content: center;
        }
        @media screen and (max-width: 1440px) {
            .custom-underline{
                margin: 22px 0 0;
            }
        }

        
        /* 底部 */
        footer {
            position: absolute;
            text-align :  center; 
            width: 100%;         
            height :  102px;        
            opacity :  1;        
            background :  #22c7a3;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        footer p {
            width: auto;
            height: 48px;
            opacity: 1;
            color: #f8fffd;
            text-align: center;
            font-size: 16px;
            font-weight: 400;
            font-family: "Microsoft YaHei UI";
            line-height: 24px;
        }
        .foot{
          display: flex;
          align-items: center;
          justify-content: center;
          }

        @media (max-width: 768px) {
            .section {
                flex-direction: column;
            }
            
            .section:nth-child(even) {
                flex-direction: column;
            }
            
            .ad-content ul {
                flex-wrap: wrap;
            }
            
            .ad-content li {
                white-space: normal;
                margin-bottom: 8px;
            }
        }
/* 返回按钮 */
.back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: #22c7a3;
            border: none;
            border-radius: 50%;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
        }

        .back-to-top.show {
            opacity: 1;
            visibility: visible;
        }

        /* 箭头图标 */
        .arrow-up {
            width: 20px;
            height: 20px;
            border: solid white;
            border-width: 0 8px 8px 0;
            transform: rotate(-135deg);
        }

        /* 悬停效果 */
        .back-to-top:hover {
            background-color: #4a8aff;
            transform: translateY(-3px);
        }

         /* 窗口交互 */
       #icon {
        position: fixed;
    bottom: 120px;
    right: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 110px;
  height: 110px;
  transition: transform 0.3s ease;
}

#chat-icon  {
  width: 80px;
  height: 80px;
  border-radius: 50%;

}
#chat-icon img{
    width: 100%;
    height: 100%;
    object-fit: cover;
}

#icon-p {
    color: white;
    font-family: Arial, sans-serif;
    width: 98px;
    height: 30px;
    border-radius: 194px;
    opacity: 1;
    border: 2px solid #ffffff;
    background: linear-gradient(90deg, #0ed3ac 0%, #00c590 97%);
    box-shadow: 0 -4px 10px 0 #00352a33;
    margin-top: -18px;
}
#icon-p p{
    height: 20px;
    opacity: 1;
    color: #ffffff;
    text-align: center;
    font-size: 16px;
    font-weight: 700;
    font-family: "Alimama ShuHeiTi";
    letter-spacing: 1.92px;
} 
#icon:hover #chat-icon {
      transform: scale(1.1);
      cursor: pointer
    }
    
    #icon:hover #icon-p {
      transform: translateY(-2px);
      background-color: #059669;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    }
        #chat-window {
            position: fixed;
            bottom: 80px;
            right: 20px;
            width: 300px;
            height: 400px;
            background-color: white;
            border: 1px solid #ffffff;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            overflow: hidden;
            transform: translateY(20px);
            opacity: 0;
            visibility: hidden;
            transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s;
        }
        #chat-window.active {
            transform: translateY(0);
            opacity: 1;
            visibility: visible;
        }
        #chat-header {
            padding: 10px 15px;
            background-color: #22c7a3;
            color: white;
            font-weight: bold;
            cursor: move;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
            #chat-window img {
            width: 30px;
            height: 30px;
         }
         #chat-header p {
    margin-left: 10px;
}
        #chat-messages {
            flex: 1;
            min-height: 200px;
            max-height: 450px;
            overflow-y: auto;
            padding: 10px;
            background-color: #f9f9f9;
        }
        #chat-input {
                display: flex;
    position: absolute;
    width: 300px;
    padding: 20px 20px;
    border-top: 1px solid #EBEDF5;
    bottom: 1px;

        }
        #message-input {
            flex: 1;
            padding: 8px;
            border:1px solid #EBEDF5;
            border-radius: 4px;
            margin-right: 10px;
            transition: border-color 0.2s ease; /* 添加过渡效果 */
        }
        #message-input:focus {
            outline: none; /* 移除默认的聚焦轮廓 */
        border: 1px solid #22c7a3;
}
        #send-button {
            padding: 8px 15px;
            background-color: #22c7a3;
            color: white;
            border: none;
            border-radius: 4px;
            cursor: pointer;
        }
        #send-button:hover {
            background-color: #0056b3;
        }
        .user-message, .bot-message {
            margin: 8px 0;
            padding: 10px;
            border-radius: 6px;
            max-width: 85%;
        }
        .user-message {
                background-color: #F8FFFD;
    margin-left: auto;
    border: 1px solid #EBEDF5;
        }
        .bot-message {
                background-color: #ffffff;
    border: 1px solid #EBEDF5;
        }
        .content {
            padding: 20px;
        }
        p{
            margin-bottom: 0 !important;
          }
          button,
          input,
          optgroup,
          select,
          textarea {
            font-size: .75rem !important; /* 设置具体大小 */
            line-height: 0 !important; /* 设置具体行高 */
          }
  /* 断点媒体查询 */
    @media (max-width: 768px) {
      .section, .section2 {
        flex-direction: column;
        width: 100%;
        margin: 32px 0;
        height: auto;
      }
    
      .section:nth-child(even), .section2:nth-child(even) {
        flex-direction: column;
      }
    
      .section-text, .section-text2 {
        width: 100%;
        padding: 20px;
      }
      .section-text2{
        margin-left: 0;
      }
      .section-image, .section-image2 {
        width: 100%;
        margin: 20px 0;
        display: flex;
        align-items: center;
        justify-content: center;
      }
    
      .section-image img, .section-image2 img {
        width: 60%;
        height: auto;
        max-width: 100%;
        object-fit: contain;
      }
      .section-image,.section-image2{
        height: unset;
      }
    
      .section-text p, .section-text2 p {
        width: 100%;
        margin: 10px 0;
        padding: 0 10px;
      }
    
      .ad-content ul, .ad-content2 ul {
        flex-wrap: wrap;
        justify-content: center;
      }
    
      .ad-content li, .ad-content2 li {
        white-space: normal;
        margin: 8px;
      }
      .tu{
        height: auto;
      }
    }
    /* 响应式调整 */
    @media (max-width: 768px) {
      .section, .section2 {
        flex-direction: column;
        width: 100%;
        margin: 32px 0;
        height: auto;
      }
    
      .section:nth-child(even), .section2:nth-child(even) {
        flex-direction: column;
      }
    
      .section-text, .section-text2 {
        width: 100%;
        height: auto;
        padding: 20px;
      }
      .section-text2{
        margin-left: 0;
      }
      .section-image, .section-image2 {
        width: 100%;
        margin: 20px 0;
        display: flex;
        align-items: center;
        justify-content: center;
      }
    
      .section-image img, .section-image2 img {
        width: 100%;
        height: auto;
        max-width: 100%;
        object-fit: contain;
      }
      .section-image,.section-image2{
        height: unset;
      }
    
      .section-text p,.section-text2 p {
        width: 100%;
        margin: 10px 0;
        padding: 0 10px;
        height: auto;
      }
    
      .ad-content ul {
        flex-wrap: wrap;
        justify-content: center;
      }
      .ad-content2 li{
        flex-wrap: wrap;
        justify-content: center;
      }
      .ad-content2 li{
        white-space: normal;
        margin: 8px;
        height: auto;
      }
      .ad-content li {
        white-space: normal;
        margin: 8px;
        height: auto;
        width: auto;
      }
      .tu{
        height: auto;
      }
      .h2,.text h2{
        font-size: 2.25rem;
        height: auto;
      }
      .unline{
      width: 52px;
      height: 20px;
      margin: 35px 0 0;
      }
      .unline1{
        width: 52px;
        height: 20px;
        margin: 55px 200px 0 ;
      }
      .hw2{
        font-size: 16px;
        height: auto;
        margin: 0;
      }
      .custom-underline {
        margin: 8px 0 0;
    }
    .grid-container {
      width: 90%;
      flex-wrap: wrap; /* 小屏幕时允许元素换行 */
     }
      .grid-item{
        width: 90%;
      }
      footer p{
        width: auto;
        height: auto;
      }
    }
    /* 响应式调整 */
    @media (max-width: 768px) {
      .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
      }
    
    }
    
    /* 响应式导航栏样式 */
    @media (max-width: 1380px) {
      .navbar {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: #ffffffcc;
        padding: 1rem;
        display: none;
      }
    
      .navbar.show {
        display: block;
      }
    
      nav ul {
        flex-direction: column;
        margin: 0 !important;
        align-items: center;
      }
    
      nav ul li {
        margin: 10px 0 !important;
        width: auto !important;
      }
    
      .navbar-toggler {
        display: block;
        border: none;
        padding: 1.5rem;
      }
    
      .navbar-toggler:focus {
        outline: none;
      }
    
      .navbar-toggler-icon {
        display: inline-block;
        width: 1.5em;
        height: 1.5em;
        vertical-align: middle;
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(19, 38, 33, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        background-repeat: no-repeat;
        background-position: center;
        background-size: 100%;
      }
    }
    
    @media (min-width: 1380px) {
      .navbar {
        display: block !important;
      }
    
      .navbar-toggler {
        display: none;
      }
    
      nav ul {
        margin: 0px 0 4px 51px !important;
      }
    
      nav ul li {
        margin: 0 32px !important;
      }
    }