* {
            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;
            margin: 0 ;
            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: 16px 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%;
        }
        
        
        /* 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:auto;
            height: 67px;
            opacity: 1;
            margin: 72px auto 0;
            display: flex;
            justify-content:center;
            position: relative;

        }
        .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: 36px 62px 4px;
}
.unline1{
width: 66px;
height: 23px;
opacity: 0.4000000059604645;
background: linear-gradient(90deg, #5ce8cc 0%, #08d29b 100%);
position: absolute;
    margin: 30px 182px 6px;
}
            
/* 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 :  auto;        
            height :  400px;
            padding: 45px 0;
            padding-right: 4.375rem;
        }
         .section-image {
            text-align :  center;        
            width :  610px;        
            height :  295px;    
         }
         .xh2{
            display: flex;
            /* justify-content: center; */
         }
        .section-text h2 {
            margin :  55px 0 18px 32px ; 
            width: 13.75rem;
            height: 39px;
            opacity: 1;
            color: #132621;
            text-align: left;
            font-size: clamp(1.625rem, 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:  20px;
            }
            .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: 20px;
            margin-bottom: 15px;
            color: #333;
        }
        
        .ad-content ul {
            display: flex;
            list-style: none;
            padding: 0;
            margin: 0 -8px;
        }
        
        .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 :  16px;        
            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: 432px;
    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;
}
.data-title {
    font-size: 32px;
    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: 100%;
    height: 400px;
    opacity: 1;
    position: relative;
    margin: -88px 0;
}
.tu1{
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 27.5rem;
    opacity: 1;
    margin: 6.3125rem auto 0;
    position: absolute;
}
.pp{
    width: 80%;
 height: 72px;
 opacity: 1;
 color: #383e3b;
 text-align: center;
 font-size: 18px;
 font-weight: 400;
 font-family: "Microsoft YaHei UI";
 line-height: 36px;
     margin: 0 auto ;
}
.pp1{
     width: 80%;
 height: 36px;
 opacity: 1;
 color: #383e3b;
 text-align: center;
 font-size: 18px;
 font-weight: 400;
     margin: 0 auto ;
}

.tup1{
    width: 100%;
    height: 100%;
}

.content-wrapper img{
    width: 100%;
}
 .content-wrapper {
    text-align: center;
    width:100%;
    height: 600px;
    opacity: 1;
    display: flex;
        }
        .beij{
            position: absolute;
            max-width: 1920px;
            width: 100%;
        }
        .box{
    width: 100%;
    height: 37.5rem;
    opacity: 1;
    background: #ffffff;
    position: relative;
}
.box1{
    width: 100%;
    height: auto;
    opacity: 1;
    background: #ffffff;
}
.c1{
    position: relative;
            display: inline-block;
            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: 0 auto 0;
            justify-content: center;
    display: flex;

}
  /* 图片网格布局 */
        .grid-container {
            display: flex;
    gap: 39px;
    justify-content: center;
    text-align: center;
    margin: 45px auto 4.5rem;
    width: 99.6875rem;
    height:auto;
}
     

        .grid-item {
      display: flex;
    flex-flow: column;
    align-items: center;
    border-style: solid;
    position: relative;
    width: 361px;
    height: 375px;
    border-radius: 8px;
    opacity: 1;
    border: 1px solid #22c7a3;
    background: #f8fffd;
        }

        .grid-item img {
                max-width: 100%;
    max-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: auto;
                height: 68px;
    opacity: 1;
    color: #383e3b;
    font-size: 24px;
    font-weight: 400;
    font-family: "Microsoft YaHei UI";
    line-height: 56px;
    text-align: center;
        }

        @media (max-width: 1920px) {
            .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 */
                width: 90%;
                max-width: 1600px;
            }
            
            .grid-item {
                /* 纵向排列时每个项目占据全部宽度 */
                width: 70%;
            }
        }
             /* 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 */
        gap: 10px;
        /* 调整边距和宽度以适应纵向布局 */
        margin: 40px auto;
        width: 100%;
        max-width: 1600px;
    }
    
    .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: 0 auto;
    }
}
.custom-underline {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
            width: 100%;
            height: 67px;
            opacity: 1;
            color: #132621;
            text-align: center;
            font-size: clamp(2rem, 1.5vw, 3rem);
            font-weight: 700;
            font-family: "Alibaba PuHuiTi 2.0";
            margin: 72px auto 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 :  clamp(1rem, 1.5vw,1rem );        
            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;
        }
        #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 */
        /* 响应式调整 */
        @media (max-width: 1920px) {
            .back-to-top {
                bottom: 20px;
                right: 20px;
                width: 45px;
                height: 45px;
            }
        }
        @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; */
              width:145px ;
            }
          
            .ad-content li, .ad-content2 li {
              white-space: normal;
              margin: 8px;
              width: auto;
              height: auto;
            }
            .tu{
              height: auto;
            }
            footer p{
              width: 100%;
              height: auto;
              margin:  auto;
            }
            .text h2,.h2 {
              font-size: 40px;
            }
            .content-wrapper img ,.tup1{
              width: 100%;
              height: auto;
          }
          .grid-container{
            width: 90%;
            flex-wrap: wrap; /* 小屏幕时允许元素换行 */
          }
          .grid-item{
            width: 90%;
        }
          }
          /* 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: 1379.98px) {
            .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;
              background-color: #ffffff00;
              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;
            }
          }