.fl {
  /* 横向不换行 水平居中对齐 */
  display: flex !important;
  align-items: center;
  flex-wrap: nowrap;
}

.fl-wrap {
  /* 横向且换行 */
  display: flex !important;
  align-items: center;
  flex-wrap: wrap;
}

.fl-ver {
  /* 竖向居中 */
  display: flex !important;
  flex-direction: column;
  align-items: center;
}

.jc-c {
  /* 垂直居中 */
  justify-content: center;
}

.fl-cen {
  /* 居中对齐 */
  justify-content: center;
}

.fl-g1 {
  /* item放大比例 */
  flex-grow: 1;
}

.fl-s0 {
  /* 当空间不足时，item缩小比例，0不缩小、1缩小 */
  flex-shrink: 0;
}

* {
  margin: 0;
  padding: 0;
}

body {
  /* 防止塌陷 */
  overflow-x: hidden;
  background-color: #fafafa;
  /* 字体集 */
  font-family: "Helvetica Neue", "Helvetica", "Microsoft Yahei", sans-serif;
}

a {
  text-decoration: none;
}

a:hover {
  color: rgb(197, 197, 197);
}

/* >=601的设备*/
@media (min-width: 601px) {
  .top_info {
    width: 100%;
    height: 654px;
    position: relative;
  }

  /* 背景图 */
  .bg_img_box {
    width: 100%;
    position: absolute;
    z-index: -1;
  }

  .bg_img {
    width: 100%;
    height: 654px;
  }

  /* logo */
  .logo_img {
    width: 248px;
    height: 78px;
    padding-top: 198px;
  }

  .top_info_text {
    width: 748px;
    margin-top: 34px;
    color: #ffffff;
    font-size: 18px;
    font-weight: 500;
    line-height: 32px;
    text-align: center;
  }

  .text_line {
    padding-top: 16px;
  }

  /* 安全提醒 */
  .safe_tip {
    width: 810px;
    height: 40px;
    margin: 40px auto 0;
    background-color: #f1f1f1;
    border-radius: 10px;
    color: #ff274e;
    font-size: 16px;
    line-height: 40px;
  }

  .safe_tip_icon {
    width: 20px;
    height: 18px;
    margin: 0 13px 0 20px;
  }

  .safe_tip_btn {
    width: 80px;
    height: 28px;
    margin-right: 6px;
    background-color: #ff2d50;
    border-radius: 6px;
  }

  .safe_tip a {
    color: #ffffff;
    font-size: 13px;
    line-height: 28px;
  }

  .safe_tip a:hover {
    color: #ffffff;
  }

  .icon_right {
    width: 6px;
    height: 11px;
    margin-left: 4px;
  }

  /* 产品 */
  .item_block {
    width: 100%;
    margin: 30px 0 56px;
  }

  .item {
    width: 180px;
    height: 160px;
    margin: 0 15px;
    background-color: #ffffff;
    box-shadow: 0px 0px 12px 5px rgba(152, 152, 152, 0.1);
    border-radius: 10px;
    cursor: pointer;
  }

  .item:hover {
    transform: scale(1.11, 1.11);
    /* 缩放的过渡时间 */
    transition-duration: 0.3s;
  }

  .item_img {
    width: 54px;
    height: 54px;
    border-radius: 14px;
    -webkit-border-radius: 14px;
    -moz-border-radius: 14px;
    -ms-border-radius: 14px;
    -o-border-radius: 14px;
  }

  .item_text {
    padding-top: 14px;
    color: #333333;
    font-size: 14px;
    font-weight: 500;
    line-height: 20px;
  }

  /* 底部 */
  .page_footer {
    width: 100%;
    padding: 24px 0;
    background-color: #323232;
    text-align: center;
  }

  .p_f_line1,
  .p_f_line1 a {
    color: #ffffff;
    font-size: 14px;
    line-height: 20px;
    letter-spacing: 1px;
  }

  .p_f_line1 span {
    padding: 0 4px;
  }

  .p_f_line2 {
    padding-top: 16px;
  }

  .p_f_line2,
  .p_f_line2 a {
    color: #aaaaaa;
    font-size: 12px;
    line-height: 17px;
    letter-spacing: 1px;
  }

  .p_f_line2 span {
    padding: 0 4px;
  }
}

/*响应式 <=600的设备使用如下css样式表 */
@media (max-width: 600px) {
  .top_info {
    width: 100%;
    height: 408px;
  }

  /* 背景图 */
  .bg_img_box {
    width: 100%;
    position: absolute;
    z-index: -1;
    border-bottom-left-radius: 50% 10%;
    border-bottom-right-radius: 50% 10%;
    overflow: hidden;
  }

  .bg_img {
    width: 1197.8px;
    height: 408px;
  }

  /* logo */
  .logo_img {
    width: 168px;
    height: 53px;
    padding-top: 47px;
  }

  .top_info_text {
    width: 80%;
    margin-top: 18px;
    color: #ffffff;
    font-size: 14px;
    line-height: 26px;
    letter-spacing: 1px;
    /* text-align: center; */
  }

  .text_line {
    padding-top: 10px;
  }

  /* 安全提醒 */
  .safe_tip {
    width: 90%;
    padding: 5px 0;
    margin: 30px auto 0;
    background-color: #f1f1f1;
    border-radius: 10px;
    color: #ff274e;
    font-size: 12px;
    line-height: 17px;
  }

  .safe_tip_icon {
    width: 13px;
    height: 11px;
    margin: 0 8px;
  }

  .safe_tip_btn {
    width: 62px;
    height: 20px;
    margin: 0 6px;
    background-color: #ff2d50;
    border-radius: 6px;
  }

  .safe_tip a {
    color: #ffffff;
    font-size: 10px;
    line-height: 20px;
  }

  .safe_tip a:hover {
    color: #ffffff;
  }

  .icon_right {
    width: 4px;
    height: 8px;
    margin-left: 3px;
  }

  /* 产品 */
  .item_block {
    width: 100%;
    margin: 5px 0 40px;
  }

  .item {
    width: 158px;
    height: 140px;
    margin: 20px 10px 0;
    background-color: #ffffff;
    box-shadow: 0px 0px 12px 5px rgba(152, 152, 152, 0.1);
    border-radius: 10px;
    cursor: pointer;
  }

  .item_img {
    width: 43px;
    height: 43px;
  }

  .item_text {
    padding-top: 15px;
    color: #333333;
    font-size: 15px;
    font-weight: 500;
    line-height: 20px;
  }

  /* 底部 */
  .page_footer {
    width: 100%;
    padding: 15px 0;
    background-color: #323232;
    text-align: center;
  }

  .p_f_line1,
  .p_f_line2 {
    width: 90%;
    margin: 0 auto;
  }

  .p_f_line1,
  .p_f_line1 a {
    color: #ffffff;
    font-size: 12px;
    line-height: 20px;
    letter-spacing: 1px;
  }

  .p_f_line1 span {
    padding: 0 4px;
  }

  .p_f_line2 {
    padding-top: 16px;
  }

  .p_f_line2,
  .p_f_line2 a {
    color: #aaaaaa;
    font-size: 10px;
    line-height: 17px;
    letter-spacing: 1px;
  }

  .p_f_line2 span {
    padding: 0 3px;
  }
}

.p_f_line2 div {
  display: inline-block;
}

#kefu_btn {
  display: inline-block;
  cursor: pointer;
}

/* 弹窗 */
#kefu_qrcode_modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.dpn {
  display: none;
}

.modal_bg {
  position: fixed;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.3);
  z-index: 10;
}

.kefu_qrcode_box {
  position: fixed;
  top: 30%;
  z-index: 11;
  width: 100%;
}

.kefu_qrcode {
  width: 250px;
  height: 294px;
  background-color: #ffffff;
  box-shadow: 0px 0px 12px 5px rgba(152, 152, 152, 0.1);
  border-radius: 10px;
}