/* 导航栏容器 */
    .navbar {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      /* background-color: rgba(0,0,0); */
      color: #fff;
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 12px 20px;
      z-index: 1000;
    }
    .navbar-content {
        display: flex;
        width: 1200px;
        margin: 0 auto;
        display: flex;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    .navbar .logo a {
      font-size: 20px;
      font-weight: bold;
      color: #fff;
    }

    .navbar .nav-links {
      display: flex;
      gap: 30px;
    }

    .navbar .nav-links a {
      text-decoration: none;
      color: #fff;
      font-size: 16px;
      transition: color 0.3s;
    }

    .navbar .nav-links a:hover {
      color: #4370f7;
    }
    .navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid #ddd;
    }

    /* 字体颜色切换 */
    .navbar .nav-links a,
    .navbar .logo a {
    color: #fff;
    transition: color 0.3s ease;
    }
    .navbar.scrolled .nav-links a,
    .navbar.scrolled .logo a {
    color: #333;
    }

    .navbar.scrolled .hamburger span {
    background-color: #333;
    }

    /* 汉堡菜单 */
    .hamburger {
      display: none;
      flex-direction: column;
      cursor: pointer;
      gap: 5px;
    }

    .hamburger span {
      width: 20px;
      height: 2px;
      background-color: #fff;
      border-radius: 2px;
    }

    /* 移动端菜单 */
    /* .mobile-menu {
      display: none;
      flex-direction: column;
      background-color: #f5f5f5;
      position: absolute;
      top: 40px;
      right: 0;
      width: 100%;
      padding: 10px 0;
    }

    .mobile-menu a {
      padding: 8px 20px;
      text-decoration: none;
      color: #666;
      border-top: 1px solid #e9e9e9;
    } */

    .mobile-menu a:hover {
      background-color: #fff;
    }

    /* 响应式布局 */
    @media (max-width: 768px) {
        .navbar.scrolled {
            border-bottom: none;
        }
      .navbar .nav-links {
        display: none;
      }
      .hamburger {
        display: flex;
      }
      .mobile-menu.show {
        display: flex;
      }
    }
    .carousel-container {
        position: relative;
        width: 100%;
        height: 40vh;
        overflow: hidden;
        margin-top: 0px; /* 与固定导航栏错开 */
    }

    .carousel-slide {
        position: absolute;
        width: 100%;
        height: 100%;
        background-size: cover;
        background-position: center;
        opacity: 0;
        transition: opacity 1s ease-in-out;
    }

    .carousel-slide.active {
        opacity: 1;
        z-index: 1;
        background-image: url(../images/banner01.png);
    }

    .caption {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        text-align: center;
        color: #fff;
        font-size: 50px;
        font-weight: 300;
        line-height: 1.6;
        max-width: 90%;
    }

    /* 移动端：屏幕宽度 ≤768px 时生效 */
    @media (max-width: 768px) {
    .caption {
        font-size: 22px;
    }
    }


    /* 悬浮按钮 */
    .carousel-btn {
        position: absolute;
        transform: translate(-50%, -50%);
        bottom: 10%;
        left: 50%;
        z-index: 3;
        padding: 10px 80px;
        background-color:#4370f7;
        color: white;
        border-radius: 4px;
        border: none;
        cursor: pointer;
        font-size: 1.1rem;
    }

    @media (max-width: 768px) {
    .carousel-btn {
        font-size: 16px;
        padding: 5px 20px;
    }
    }
    

    

    
    /* 页面内容 */
    .solution.content {
        padding: 60px 20px;
        background-color: #f9f9f9;
        text-align: center;
    }

        .solution .tittle {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        margin-bottom: 40px;
    }

    .solution .tittle h2 {
        font-size: 28px;
        color: #333;
        padding: 0 10px;
    }

    @media (max-width: 768px) {
      .solution.content {
        padding: 30px 15px;
      }  
      .solution .tittle h2 {
        font-size: 20px;
        font-weight: 500;
      } 
       .solution .tittle {
        margin-bottom: 0px;
      }
    } 

    .solution-content ul {
        display: grid;
        grid-template-columns: repeat(2, 1fr); /* 默认移动端2列 */
        gap: 24px;
        list-style: none;
        padding: 30px 0;
        margin: auto;
        max-width: 1200px;
    }

    /* 平板及以上：4列 */
    @media (min-width: 1024px) {
        .solution-content ul {
            grid-template-columns: repeat(4, 1fr);
        }
    }

    .solution-content li {
        border-radius: 10px;
        padding: 20px;
        text-align: center;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        
        /* 动画初始状态 */
        opacity: 0;
        transform: translateY(30px);
        transition: all 0.6s ease;
    }

    .solution-content li.fade-in {
        opacity: 1;
        transform: translateY(0);
    }

    .solution-content li:hover {
        transform: translateY(-5px);
        box-shadow: 0 6px 16px rgba(0,0,0,0.1);
    }

    .solution-content img {
        /* width: 48px;  */
        height: 100px;
        margin-bottom: 10px;
    }

    .solution-content h3 {
        font-size: 18px;
        color: #222;
        margin-bottom: 8px;
    }

    .solution-content li {
        font-size: 14px;
        color: #555;
        line-height: 1.5;
    }

     @media (max-width: 768px) {
      .solution-content img { 
        height: 50px;
    }
      .solution-content ul {
        gap: 15px;
        padding: 10px 0;
      }
      .solution-content li {
        background-color: #fff;
        font-size: 12px;
      } 
    }

    .full-section {
        display: flex;
        width: 100%;
        overflow: hidden;
    }

/* 左图 */
.Service-left {
  background: #fff;
  width: 44%;
}

.Service-left img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 中间文字内容 */
.Service-middle {
  width: 40%;
  background-color: #3366ff;
  color: #fff;
  padding: 60px 40px 0 40px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.Service-middle h2 {
  font-size: 28px;
  margin-bottom: 30px;
  border-bottom: 2px solid rgba(255,255,255,0.2);
  padding-bottom: 12px;
}

.Service-item {
  margin-bottom: 36px;
}

.Service-item h3 {
  font-size: 16px;
  margin-bottom: 10px;
}

.Service-item p {
  font-size: 14px;
  line-height: 1.7;
  opacity: 0.9;
  font-weight: 300;
}

/* 右图 + 竖排文字 */
.Service-right {
    flex: 1;
  position: relative;
  background-color: #000;
}

.Service-right img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 响应式处理 */
@media (max-width: 768px) {
  .full-section {
    flex-direction: column;
  }

  .Service-left,
  .Service-middle {
    width: 100%;
  }

  .Service-middle {
    padding: 40px 20px 0 20px;
  }
  .Service-right {
    display: none;
  }
}

/* 第四屏 */
.network {
  background-color: #f2f2f2;
  /* padding: 20px 0; */
  overflow: hidden;
}

/* 滚动区域 */
.network-slider {
  width: 100%;
  margin: 30px 0;
  overflow: hidden;
  position: relative;
}

/* 滚动轨道 */
.logo-track {
  display: flex;
  width: max-content;
  animation: scrollLogos 40s linear infinite;
  animation-play-state: running;
}

/* 悬停时暂停动画（桌面端） */
.network-slider:hover .logo-track {
  animation-play-state: paused;
}

/* logo 样式 */
.logo-track img {
  /* width: 120px; */
  /* height: auto; */
  margin: 0 30px;
  opacity: 0.8;
  transition: opacity 0.3s;
  filter: grayscale(1);
}

.logo-track img:hover {
  opacity: 1;
  filter: grayscale(0);
}

/* 滚动关键帧 */
@keyframes scrollLogos {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* 移动端响应式 */
@media (max-width: 768px) {
  .logo-track img {
    height: 30%;
    margin: 0 15px;
  }
  .network-slider {
    margin: 0;
  }
}

/* 热门项目 */
.partner-scroll-section {
  background-color: #fafafa;
  padding: 30px 60px 10px 60px;
  overflow: hidden;
}

.scroll-row {
  overflow: hidden;
  white-space: nowrap;
  margin: 15px 0;
  position: relative;
}

.scroll-track {
  display: flex;
  gap: 120px;
  animation: scrollLeft 40s linear infinite;
}

.scroll-track img {
    flex: 1;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.scroll-row.row-right .scroll-track {
  animation: scrollRight 40s linear infinite;
}

.scroll-row:hover .scroll-track {
  animation-play-state: paused;
}

.scroll-track img {
  height: 50px;
  opacity: 1;
  transition: opacity 0.3s;
}

.scroll-track img:hover {
  opacity: 0.5;
}

@media (max-width: 768px) {
    .partner-scroll-section {
        padding: 20px 20px 5px 20px;
    }
  .scroll-track {
    animation: none !important;   /* 关闭滚动动画 */
    flex-wrap: wrap;              /* 开启换行 */
    justify-content: flex-start;      /* 可选：居中对齐 */
    column-gap: 65px;
    row-gap: 20px;
  }

  .scroll-track img {
    height: 36px;
    flex: 0 0 auto;               /* 不伸缩 */
    max-width: 40%;               /* 限制宽度 */
  }

  .scroll-row {
    overflow: visible;            /* 允许正常显示换行内容 */
  }
}

.tips {
    display: flex;
    
}
.tips p {
    color: #ddd;
    font-size: 12px;
}
/* 第五屏 */
.about {
    margin-top: 60px;
}
.about .tittle {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        margin-bottom: 20px;
    }

.about .us {
    text-align: center;
    margin: 0 auto;
    margin-bottom: 40px;
    max-width: 1000px;
    width: 90%;
    color: #666;
}

/* list */
.about-section {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 30px;
  margin: 0 auto;
  /* gap: 40px; */
  position: relative;
  border-bottom: 2px solid #3366ff;
}

/* 背景图左侧占一半 */
.about-section .bg-img {
  width: 50%;
  object-fit: cover;
}

/* 右侧文字列表 */
.about-list {
  list-style: none;
  padding: 50px 50px 0 70px;
  /* margin-left: 20px; */
  flex: 1;
}

.about-list li {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-bottom: 50px;
}

.about-text h3 {
  font-size: 18px;
  margin: 0 0 8px;
}

.about-text h3 span {
  font-size: 14px;
  color: #3366ff;
  margin-left: 8px;
  font-weight: normal;
}

.about-text p {
  margin: 0;
  color: #666;
  font-size: 14px;
  line-height: 1.6;
}

/* 响应式处理 */
@media (max-width: 768px) {
    .about {
        margin-top: 30px;
    }
    .about .tittle {
        margin-bottom: 10px;
    }
    .about .us p {
        font-size: 14px;
    }
    
  .about-section {
    flex-direction: column;
    padding: 0px 20px;
  }

  .about-section .bg-img {
    display: none;
  }

  .about-list {
  padding: 0;
}

  .about-list li {
    flex-direction: row;
    gap: 20px;
    margin-bottom: 30px;
  }

  .about-list img {
    margin-bottom: 8px;
  }
  .about-text {
    flex: 1;
  }
}

/* 底部栏 */
.site-footer {
  background-color: #f5f5f5;
  color: #333;
  padding: 40px 20px 20px;
   border-bottom: 10px solid #3366ff;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  max-width: 1200px;
  margin: 30px auto;
}

.footer-left {
  flex: 1;
  min-width: 280px;
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.footer-left h3 {
  font-size: 20px;
  margin-bottom: 15px;
  color: #000;
}

.footer-left p {
    font-size: 16px;
    color: #999;
    margin: 10px 0;
}

.contact-divider {
  height: 1px;
  background-color: #ddd; 
  margin: 20px 0 40px 0; 
}

.footer-left ul {
    margin-top: 80px;
}

.footer-left li {
  display: flex;
  align-items: center;
  margin-bottom: 50px;
  font-size: 18px;
  color: #555;
}

.copy-text {
  cursor: pointer;
  position: relative;
}

/* 复制提示气泡 */
.copy-text::after {
  content: "复制成功";
  position: absolute;
  top: -28px;
  left: 0;
  background: #333;
  color: #fff;
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 4px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.copy-text.show-tip::after {
  opacity: 1;
}

.footer-left li img {
  height: 30px;
  margin-right: 10px;
}

.footer-right {
  flex: 1;
  min-width: 280px;
  text-align: left;
  font-weight: 300;
  letter-spacing: 4px;
  margin-left: 100px;
}

.footer-right .en-1 {
  margin: 5px 0;
  font-size: 24px;
  color: #333;
}

.footer-right .en-2 {
  font-size: 40px;
  color: #3e5cff;
  line-height: 1.5;
  margin: 30px 0px;
}

.footer-right .en-3, .en-4 {
    font-size: 36px;
    color: #999;
}


/* 弹窗遮罩层 */
.wechat-popup {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.6);
  z-index: 9999;
  justify-content: center;
  align-items: center;
}

/* 弹窗内容区域 */
.wechat-popup-inner {
  background: #fff;
  padding: 20px 30px;
  border-radius: 10px;
  text-align: center;
  position: relative;
  max-width: 280px;
  width: 80%;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  animation: fadeIn 0.3s ease;
}

.wechat-popup-inner img {
  width: 200px;
  height: auto;
  margin-bottom: 10px;
}

.wechat-popup-inner p {
  font-size: 14px;
  color: #333;
}

/* 关闭按钮 */
.close-btn {
  position: absolute;
  top: 8px;
  right: 10px;
  font-size: 22px;
  color: #999;
  cursor: pointer;
  font-weight: bold;
}

.close-btn:hover {
  color: #000;
}

/* 淡入动画 */
@keyframes fadeIn {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

/* 地址 */
.footer-bottom {
    display: flex;
    justify-content: center;
    align-items: center;
  border-top: 1px solid #ddd;
  text-align: center;
  padding-top: 15px;
  font-size: 16px;
  color: #999;
  font-size: 18px;
}

.footer-bottom img {
    height: 20px;
    margin-right: 10px;
}

@media (max-width: 768px) {
    .footer-content {
        margin: 0 0 30px 0;
    }
    .footer-left ul {
        margin-top: 20px;
    }
    .footer-left li {
        margin-bottom: 20px;
    }
      .footer-right {
        margin-left: 0;
        min-width: 90%;
      }
      .footer-right .en-2 {
        font-size: 30px;
        margin: 15px 0;
      }
      .footer-right .en-3,.en-4 {
        font-size: 26px;
      }
      .footer-right .en-1 {
        font-size: 18px;
      }

      .footer-bottom {
        font-size: 15px;
      }
}

/* 移动端联系方式 */
/* 移动端固定底部栏 */
.mobile-contact-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: #3366ff;
  color: white;
  font-size: 16px;
  z-index: 9999;
  padding: 12px 0;
  display: flex;
  justify-content: space-around;
  align-items: center;
}

.mobile-contact-bar a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}

/* 仅在移动端显示 */
@media (min-width: 768px) {
  .mobile-contact-bar {
    display: none !important;
  }
  body {
    padding-bottom: 60px; /* 移动端预留底部固定栏高度 */
  }
}