.body {
  width: 100%;
  height: 100%;
  background: #ffffff;
  font-family: "PingFang SC";
  font-size: 14px;
}

.button {
  cursor: pointer;
}

.button:focus {
  border: 1px solid transparent;
  border-radius: 10px;
}

/* header */
.header-button {
  width: 139px;
  height: 57px;
  background: #5380D3;
  opacity: 1;
  border-radius: 10px;
  font-size: 20px;
  font-weight: 600;
  line-height: 28px;
  color: #ffffff;
} 


.banner {
  background-image: url('../image/b2b_bgk.png');
}

.banner__left__font {
  margin-top: 30px;
  margin-bottom: 50px;
  height: 166px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.banner__left__font h1 {
  font-size: 31px;
  color: #020202;
}

.banner__left__font p {
  font-size: 25px;
  color: #707070;
}

.banner__left__font span {
  font-size: 14px;
  color: #707070;
  opacity: 0.5;
}

.link-sass {
  color: #8fbe9e;
}

.banner__left__button {
  width: 355px;
}

.button-size-one {
  width: 155px;
  height: 56px;
  border-radius: 10px;
}

.button-experience {
  background: #5380D3;
  ;
}

.button-relation {
  background: #d5d5d5;
}

.banner__right {
  height: 297px;
  width: 546px;
}

/* main */
.main {
  margin-top: 90px;
}

.block-one {
  display: flex;
  flex-direction: column;
}

.block-one__font {
  line-height: 74px;
  font-size: 53px;
  color: #020202;
  margin-right: 8px;
}

.block-one__font h1 {
  font-weight: 700;
}

.block-one__img {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
}

.block-one__img_phone {
  height: 374px;
  width: 180px;
  margin-right: 46px;
}

.block-one__img_pc {
  width: 447px;
  height: 259px;
}

.block-one__img_code {
  width: 168px;
  height: 168px;
  margin-left: 242px;
  margin-top: -30px;
}

.block-one__img_tip {
  width: 126px;
  height: 38px;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #5380D3;
  color: #fff;
  margin-left: 49px;
  margin-top: 62px;
}

.block-one__img_tip__icon {
  width: 26px;
  height: 19px;
  margin-right: 15px;
}

.block-two {
  margin-top: 232px;
}

.block-item_font {
  width: 339px;
  height: 147px;
  font-size: 20px;
  line-height: 28px;
  color: #555454;
}

.block-two .block-item_font {
  padding-top: 90px;
}

.block-item_ohter {
  width: 280px;
  height: 100px;
  position: relative;
}

.block-item_ohter__title {
  height: 46px;
  font-size: 33px;
  font-weight: 500;
  line-height: 46px;
  color: #5380D3;
}

.block-item_ohter__text {
  height: 28px;
  font-size: 20px;
  font-weight: 600;
  line-height: 28px;
  color: #020202;
}

.block-item_ohter__img {
  position: absolute;
  top: 0;
  right: 0;
  height: 30px;
  width: 36px;
  padding: 15px 12px;
  background: #F4F4F4;
  border-radius: 50%;
}

.block-three {
  margin-top: 225px;
}

.block-four {
  margin-top: 202px;
}

.block-four .block-item_font {
  padding-top: 116px;
}

/* footer */
.footer {
  margin-top: 270px;
  margin-bottom: 103px;
}
.button-size-self{
  color: #fff;
  background-color:#5380D3;
}
.button-size-three{
  background-color:#5380D3;
}