:root {
  --BoxWidth:892px;
}

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  /* link 滑順 */
  scroll-behavior: smooth;
  font-family: "Noto Sans HK", sans-serif;
}


#screenBackground {
  position: fixed;
  display: block;
  top: 0;
  left: 0;
  object-fit: cover;
  z-index: -1;
  opacity: .4;
}

.container,
.centerBox {
  width: 100%;
  display: flex;
  justify-content: center;
}

.container {
  padding: 0 10px;
}

.box {
  width: 100%;
  max-width: var(--BoxWidth);
  padding: 60px 0px;
  position: relative;
}

.title {
  padding-left: 15px;
  font-weight: 700;
  font-size: 30px;
  line-height: 1;
  letter-spacing: 0px;
  vertical-align: middle;
  position: relative;
  margin-bottom: 20px;
}

.title::before {
  content: '';
  position: absolute;
  transform: translateY(-50%);
  left: 0;
  top: 50%;
  width: 7px;
  height: 7px;
  background-color: #e20513;

}

.des {
  font-weight: 500;
  font-size: 20px;
  line-height: 170%;
  letter-spacing: 0px;
  vertical-align: middle;
}

.w100 {
  width: 100%;
}

.w50 {
  width:calc(50% - 10px);
}

.computerShowF {
  display: flex !important;
}

.mobileShowF {
  display: none !important;
}

.computerShow {
  display: block !important;
}

.mobileShow {
  display: none !important;
}

@media (max-width:768px) {

  .box {
    padding: 60px 0px;
  }

  .computerShowF {
    display: none !important;
  }

  .mobileShowF {
    display: flex !important;
  }

  .computerShow {
    display: none !important;
  }

  .mobileShow {
    display: block !important;
  }
}

@media (max-width:480px) {
  .w50 {
    width: 100%;
  }
}