.service_wrap {
  position: relative;
  max-width: 1920px;
  margin: 0 auto;
  padding: 70px 30px;
  overflow: hidden;
}
/* PC背景：保持原图宽高，水平居中，不拉伸铺满，降低透明度 */
.service_map_bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("//ueeshop.ly200-cdn.com/u_file/UPBJ/UPBJ212/2608/14/photo/2857dc16df.png");
  background-repeat: no-repeat;
  background-position: center top;
  background-size: auto; /* 使用图片原始尺寸，不缩放 */
  opacity: 0.14; /*背景淡化，0.08~0.14调节深浅*/
  z-index: 1;
}
.service_inner {
  position: relative;
  z-index: 2;
  max-width: 1340px;
  margin: 0 auto;
}
/* PC端：2列4行布局 */
.service_list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 42px 60px;
}
.service_item h4 {
  font-size: 24px;
  font-family: "微软雅黑", sans-serif;
  color: #222;
  margin: 0 0 16px;
  font-weight: bold;
}
.service_item p {
  font-size: 15px;
  font-family: "微软雅黑", sans-serif;
  color: #444444;
  line-height: 28px;
  margin: 5px 0;
}
.tel_red {
  color: #c71028;
  font-weight: bold;
}

/* 移动端规则：移除背景，切换单列 */
@media screen and (max-width:768px) {
  .service_map_bg {
    display: none !important;
  }
  .service_wrap {
    padding: 35px 18px;
  }
  .service_list {
    grid-template-columns: 1fr;
    gap: 32px 0;
  }
  .service_item h4 {
    font-size: 20px;
    margin-bottom: 10px;
  }
  .service_item p {
    font-size: 14px;
    line-height: 26px;
  }
}