.box-banner {
  display: flex;
  align-items: center;
  gap: 40px;
  padding: 30px;
}
.box-banner > div {
  width: 50%;
}
.box-banner-left h1 {
  font-size: 50px;
}
.box-banner-left span {
  font-size: 16px;
}
.box-phusong {
  display: flex;
  gap: 50px;
  padding: 30px;
}
.box-phusong-left {
  width: 70%;
}
.box-phusong-left h1 {
  margin-top: 0;
  margin-bottom: 30px;
  font-weight: 500;
}
.paragraph1 {
  margin-bottom: 10px;
}
.box-phusong-left span {
  font-size: 18px;
  line-height: 1.5;
}
.paragraph2 {
  margin-bottom: 30px;
}
.box-phusong-left p {
  line-height: 1.5;
  font-size: 16px;
  color: #c0c0c0;
}
.box-phusong-right {
  width: 30%;
}
.toCategory {
  padding: 15px 20px;
  border: 2px solid #000;
  background-color: #fff;
  font-size: 16px;
  text-align: center;
  width: 200px;
  cursor: pointer;
}
@media screen and (max-width: 768px) {
  .box-banner {
    display: block;
    padding: 30px 10px;
  }
  .box-banner > div {
    width: 100%;
    margin-bottom: 15px;
  }
  .box-banner-left h1{
    font-size: 35px;
  }
  .box-phusong {
    display: block;
    padding: 30px 10px;
  }
  .box-phusong > div {
    width: 100%;
    margin-bottom: 15px;
  }
}