#backToTopBtn {
    position: fixed;
    bottom: 50px;
    right: 30px;
    padding: 8px 10px;
    background-color: rgba(143, 195, 53, 0); /* 设置完全透明的背景 */
    color: #fff;
    border: none;
    cursor: pointer;
    transition: transform 0.3s ease; /* 添加过渡效果 */
}

#backToTopBtn:hover {
    transform: scale(1.2); /* 鼠标悬停时放大按钮 */
}

/* 导航字体链接 */
.dropdown-item {
  display: block;
  width: 100%;
  padding: 0.25rem 1.5rem;
  clear: both;
  font-weight: 400;
  color: #212529;
  text-align: inherit;
  white-space: nowrap;
  background-color: transparent;
  border: 0;
}
/* 头部样式 */
.header {
    background-color: #333;
    color: white;
    padding: 10px 0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 999;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    background-color: #333; /* 导航栏背景颜色 */
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    max-width: 80%;
    height: auto;
}

.logo-text {
    font-weight: bold;
    margin-left: 10px;
}

.nav-links {
    list-style: none;
    display: flex;
    padding-left: 30%; /* 往右偏移 10px */
}

.nav-links li {
    margin-right: 20px;
}

.nav-links a {
    text-decoration: none;
    color: white;
    font-weight: bold;
    font-size: 14px; /* 字体大小 */
}

/* 电脑样式 */
@media (min-width: 1024px) {
    .menu-icon {
        display: none;
    }
}

/* 平板和手机共享样式 */
@media screen and (max-width: 1023px) {
    .nav-links {
        display: none;
        flex-direction: column;
        align-items: flex-start;
        background-color: #333;
        position: absolute;
        top: 60px;
        left: 0;
        width: 100%;
    }

    .nav-links.show {
        display: flex;
    }

    .nav-links li {
        margin: 10px 0;/* 字体行高 */
    }

    .menu-icon {
        display: block;
        cursor: pointer;
    }
}


/* 内容样式 */
.vogana01 {
    height: 60px;
}

.vogana02 {
    height: 100%;
    font-size: 16px; /* 字体大小 */
    color: #000000; /* 文本颜色 */
}

.content {
    max-width: 1200px;
    margin: 20px auto;
    padding: 0 20px;
    font-size: 16px; /* 字体大小 */
    color: #555; /* 文本颜色 */
}

/* 底部样式 */
.footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px 0;
    position: fixed;
    bottom: 0;
    width: 100%;
}

.footer-menu {
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.menu-list {
    list-style: none;
    display: flex;
    padding: 0;
}

.menu-list li {
    margin-right: 60px;
}

.menu-list li:last-child {
    margin-right: 0;
}

.menu-list a {
    text-decoration: none;
    color: white;
    font-size: 14px;
    transition: color 0.3s;
}

.menu-list a:hover {
    color: #ff9800; /* 鼠标悬停时的颜色 */
}

/* 媒体查询：电脑 */
@media screen and (min-width: 1024px) {

    .image {
        flex-basis: calc(33.33% - 10px); /* 每行三张图片，每张图片占据1/3的宽度 */
    }
}

/* 媒体查询：平板和手机共享样式 */
@media screen and (max-width: 1023px) {


    .image {
        flex-basis: calc(50% - 10px); /* 每行两张图片，每张图片占据1/2的宽度 */
    }
}

/* 媒体查询：手机 */
@media screen and (max-width: 767px) {


    .image {
        flex-basis: 100%; /* 每行一张图片，每张图片占据100%的宽度 */
    }
}

/* 媒体查询：电脑 */
@media screen and (min-width: 1024px) {
    .mobile-content {
        display: none;
    }
}

/* 媒体查询：平板 */
@media screen and (max-width: 1023px) and (min-width: 768px) {
    .desktop-content {
        display: none;
    }
}

/* 媒体查询：手机 */
@media screen and (max-width: 767px) {
    .desktop-content {
        display: none;
    }
}







/* 基础样式设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', '微软雅黑', sans-serif;
    background-color: #f4f4f4;
    color: #333;
}

h1, h3 {
    font-family: 'Helvetica Neue', sans-serif;
    color: #333;
}


/* 关于我们部分 */
#about-us {
    background-color: #ffffff63;
    padding: 50px 20px;
    margin: 0 0px 50px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}


#about-us h1, #about-us h2 {
    text-align: center;
    color: #ff6600;
}

#about-us h1 {
    margin-bottom: 15px;  /* Adjust as needed */
    font-size: 1.8em;       /* Adjust the font size for h1 */
}

#about-us h2 {
    margin-bottom: 15px;  /* Adjust as needed */
    font-size: 1.8em;     /* Adjust the font size for h2 */
}


#about-us p {
    font-size: 1.2em;
    text-align: left;
    line-height: 1.6;
}

/* 服务部分 */
.service {
    background-color: #ffffff63;
    padding: 30px;
    margin-bottom: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
    cursor: pointer;
}

.service:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    background-color: #f9f9f9;
}

.service h3 {
    color: #ff6600;
    font-size: 1.8em;
    margin-bottom: 15px;
}

.service p {
    font-size: 1.1em;
    line-height: 1.6;
}

.service ul {
    margin-top: 20px;
    list-style: none;
    padding-left: 20px;
}

.service ul li {
    font-size: 1.1em;
    margin-bottom: 10px;
    position: relative;
    padding-left: 25px;
}

.service ul li::before {
    content: "✔";
    position: absolute;
    left: 0;
    top: 0;
    color: #ff6600;
}

/* 响应式设计 */
@media (max-width: 768px) {

    #about-us {
        padding: 30px 20px;
    }

    #about-us h2 {
        font-size: 1.6em;
    }

    #about-us h1 {
        font-size: 1.6em;
    }
    .service {
        padding: 15px;
    }

    .service h3 {
        font-size: 1.6em;
    }
}

@media (max-width: 480px) {


    .service {
        padding: 15px;
    }
}





  /* CSS样式海报 */
  .image-wrapper {
  width: 100%; /* 设置宽度为100% */
  height: 100%;
}
  .carousel {
    position: relative;
    width: 100%;
    overflow: hidden;
    text-align: center;
  }
  .carousel img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0; /* 初始状态设置为透明 */
    transition: opacity 0.5s ease;
  }
  .carousel-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    z-index: 2;
    display: none;
  }
  .carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    background: rgba(0, 0, 0, 0.5);
    color: white;
    padding: 10px;
    z-index: 3;
  }
  .carousel-btn.prev {
    left: 0;
  }
  .carousel-btn.next {
    right: 0;
  }

  /* 响应式设计 */
  @media screen and (max-width: 767px) {
    .carousel {
      height: 160px;
    }
  .annazi-ggh h1,
  .annazi-gh h2 {
    margin-bottom: 15px;  /* Adjust as needed */
    font-size: 1.6em;       /* Adjust the font size for h1 */
  }
  }
  
  @media screen and (min-width: 768px) and (max-width: 991px) {
    .carousel {
      height: 300px;
    }
  .annazi-ggh h1,
  .annazi-gh h2 {
    margin-bottom: 15px;  /* Adjust as needed */
    font-size: 1.8em;       /* Adjust the font size for h1 */
  }
  }
  
  @media screen and (min-width: 992px) {
    .carousel {
      height: 400px;
      
    }
  .annazi-ggh h1,
  .annazi-gh h2 {
    margin-bottom: 15px;  /* Adjust as needed */
    font-size: 1.8em;       /* Adjust the font size for h1 */
  }
  }