.mb__main__case__content_case{
        width: 1200px;
        margin: 0 auto;
    }
    .mb__main__case1{
 background: linear-gradient(to right, #d9f5ff, #ffffff);width: 100%;
    }
    .mb__main__case1 .top{
        width: 1200px;
        margin: 0 auto;
    }
    .main-feedback{
background: linear-gradient(to right, #d9f5ff, #ffffff);width: 100%;
    }
    .main-feedback .top{
        margin-bottom: 0px!important;
    }
    .main-feedback .top .global_title{
        display: inline-block;
    }
    


    /* 标题样式 */
    .global_title span:nth-child(1){
        width: 100%;
        font-size: 38px;
        font-weight: bolder;
        color: #000;
    }
     .main_case .content4_top .top{
        width: 100%;
    }
    /* 好评视频样式 */
     .main-feedback-content-img {
    width: 100%;
    height: auto; /* 固定高度 */
    position: relative;
    overflow: hidden;
    border-radius: 25px;
    box-shadow: 2px 2px 5px #8f8a8a;
    }

    .main-feedback-content-img img,
    .main-feedback-content-img video {
    width: 100%;
    height: 100%;
    object-fit: cover; /* 保证填充整个容器 */
    display: block;
    }
    .play-button {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        cursor: pointer;
        z-index: 10;
        display: block;
        }

        .play-button img {
        border-radius: 50%;
        background-color: rgba(0, 0, 0, 0.5);
        padding: 10px;
        }
        .play-button.hidden {
        display: none;
    }
    /* 灰色遮盖层样式 */
.overlay-mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5); /* 半透明灰色 */
  z-index: 5; /* 确保低于播放按钮但高于视频 */
  pointer-events: none; /* 允许点击穿透到播放按钮 */
}

/* 确保播放按钮在遮盖层之上 */
.play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  cursor: pointer;
  z-index: 10; /* 必须高于遮盖层的z-index */
  display: block;
}
   /* customersPics */
     .overlay-text {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgb(61 61 61 / 48%); /* 微黑色半透明遮罩 */
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        color: white;
        font-family: 'Microsoft YaHei', sans-serif;
        text-align: center;
        z-index: 10;
        padding: 20px;
    }

    .overlay-text h1 {
        font-size: 60px;
        font-weight: bold;
        margin-bottom: 10px;
        text-shadow: 1px 1px 3px rgba(0,0,0,0.7);
    }

    .overlay-text p {
        font-size: 45px;
        margin: 0;
        text-shadow: 1px 1px 3px rgba(0,0,0,0.7);
    }

    /* 确保图片容器不被遮挡 */
    .main-gkpics-content {
        position: relative;
        overflow: hidden;
    }
/* 公告栏滚动效果 */
.announcement {
  overflow: hidden;
  width: 100%;
  position: relative;
  background: linear-gradient(to right, #d9f5ff, #ffffff);
}

.announcement_list {
  width: 100%;
  height: 100%;
  overflow: hidden;
  position: relative;
}

.scroll-list {
  display: flex;
  width: max-content;
  animation: scroll-left 20s linear infinite;
  height: 100%;
  align-items: center;
}

.scroll-list li {
  list-style: none;
  margin-right: 5px;
  flex-shrink: 0;
}

.scroll-list li img {
  height: 180px;
  width: auto;
  box-shadow: 0 2px 8px rgba(59, 58, 58, 0.1);
}

@keyframes scroll-left {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-15%);
  }
}

/* 响应式调整 */
@media screen and (max-width: 768px) {
  .scroll-list li img {
    height: 100px;
  }
  .overlay-text h1 {
    font-size: 50px;
  }
  .overlay-text p{
    font-size: 35px;
  }
  .announcement {
  }
}
@media screen and (max-width: 460px){
    .overlay-text h1 {
    font-size: 35px;
  }
  .overlay-text p{
    font-size: 25px;
  }
}
    @media (max-width: 1440px){
        .mb__main__case1 .top,.mb__main__case__content_case{
            width: 100%;
        }
    }
    @media (max-width: 768px) { 
        .mb__main__case__content_case,.mb__main__case1 .top{
            width: 100%;
        }
        
        .global_title span:nth-child(1){
            font-size: 25px;
        }
    }
    @media screen and (max-width: 350px){
            .global_title span:nth-child(2) {
                font-size: 35px;
            }
            .global_title{
                width: 100%;
            }
    }