#welcome {
  width: 100%;
  height: 700px;
  background-image: linear-gradient(
    270deg,
    hsl(0deg 0% 100%) 0%,
    hsl(54deg 100% 96%) 11%,
    hsl(54deg 100% 91%) 22%,
    hsl(54deg 100% 87%) 33%,
    hsl(54deg 100% 83%) 44%,
    hsl(54deg 100% 78%) 56%,
    hsl(54deg 100% 73%) 67%,
    hsl(54deg 100% 68%) 78%,
    hsl(55deg 100% 62%) 89%,
    hsl(56deg 100% 50%) 100%
  );
}

#welcome .flex {
  display: flex;
  align-items: center;
  justify-content: center;
}
#welcome .image {
  width: 50%;
}

#welcome .content {
  width: 50%;
}

#welcome .image div {
  width: 100%;
  margin-inline: auto;
}

#welcome .image img {
  width: 100%;
  height: 700px;
  object-fit: contain;
}

#welcome .c-container {
  width: 90%;
  max-width: 700px;
  margin-inline: auto;
}

#welcome h2 {
  font-size: 3rem;
}
#welcome p {
  margin-bottom: 0px;
  font-size: 1.1rem;
  color: #333333ea;
  line-height: 33px;
}
#welcome button {
  color: #fff;
  background-color: #333;
  border: none;
  width: 160px;
  height: 47px;
  border-radius: 100px;
  margin-top: 10px;
}

#aboutUs {
  text-align: center;
  margin-top: 50px;
}

#aboutUs h3 {
  font-size: 2.7rem;
  margin-bottom: 30px;
}

#aboutUs img {
  width: 170px;
}

#aboutUs p {
  margin-top: 30px;
  width: 90%;
  max-width: 800px;
  margin-inline: auto;
  font-size: 1rem;
  line-height: 30px;
  color: #333;
  margin-bottom: 0px;
}
#aboutUs button {
  width: 170px;
  height: 50px;
  margin-top: 10px;
  border-radius: 200px;
  border: none;
  background-color: #ffee00;
  font-size: 1rem;
  color: #333;
}

#choseUs {
  position: relative;
  margin-top: 50px;
  background-color: #33333318;
  padding-top: 30px;
  padding-bottom: 50px;
}

#choseUs .c-container {
  width: 95%;
  max-width: 2000px;
  margin-inline: auto;
}

#choseUs .title h3 {
  font-size: 2.8rem;
  color: #333;
  margin-left: 40px;
}
#choseUs .title h3 span {
  color: yellow;
}

#choseUs .flex-container {
  display: flex;
  justify-content: center;
}

#choseUs .content {
  width: 50%;
  margin-inline: 40px;
}
#choseUs .content img {
  height: 750px;
  border-radius: 30px;
}
#choseUs .certificate .img {
  position: relative;
  height: 750px;
  display: grid;
  place-content: center;
}
#choseUs .certificate .img img {
  width: 400px;
  height: 400px;
  z-index: 1;
}
#choseUs .certificate .img::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("/aobut/pc/certificateBCG.png");
  filter: grayscale(60%);
  filter: brightness(0.5);
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center center;
  background-color: #f0f0f0;
  border-radius: 30px;
}
#choseUs .experience img {
  width: 100%;
  object-fit: cover;
}

#choseUs .content .txt {
  margin-top: 20px;
}
#choseUs .content .txt h4 {
  font-size: 2.5rem;
  margin-bottom: 5px;
}

#choseUs .content .txt p {
  font-size: 1.05rem;
  color: #333;
  line-height: 30px;
  margin-bottom: 5px;
}
#choseUs .content button {
  width: 150px;
  height: 50px;
  background-color: #333;
  border: none;
  border-radius: 15px;
  color: #fff;
  transition: all 0.4s;
  margin-left: -16px;
}
#choseUs .content button:hover {
  background-color: #000;
}
#choseUs .experience {
  margin-top: 80px;
}

#product {
  text-align: center;
  margin-top: 50px;
}
#product h3 {
  font-size: 2.6rem;
  margin-bottom: 60px;
}
#product .flex {
  display: flex;
  align-items: center;
  justify-content: center;
}

#product .c-card {
  width: 400px;
  height: 230px;
  margin-inline: 10px;
  padding: 6px;
  background-color: #fff;
  border-radius: 15px;
}

#product .c-card .icon {
  display: grid;
  place-content: center;
  width: 75px;
  height: 75px;
  margin-inline: auto;
  background-color: #ffec00;
  border-radius: 50%;
  font-size: 2.4rem;
  margin-top: -45px;
}
#product .c-card h5 {
  font-size: 1.8rem;
  margin-top: 6px;
}
#product .c-card p {
  color: #333333c9;
  font-size: 1rem;
  margin-top: 20px;
}

#product .c-f {
  margin-top: 20px;
}

#product .c-f a {
  margin-top: 20px;
  color: #ada201;
  font-size: 1.1rem;
}

@media only screen and (max-width: 1279px) {
  #welcome h2 {
    font-size: 2.9rem;
  }
  #aboutUs h3 {
    font-size: 2.6rem;
  }
  #aboutUs img {
    width: 140px;
  }
  #choseUs .content {
    margin-inline: 10px;
  }
  #choseUs .title h3 {
    font-size: 2.6rem;
  }
  #choseUs .certificate .img {
    height: 650px;
  }
  #choseUs .certificate .img img {
    width: 350px;
    height: 350px;
  }
  #choseUs .content img {
    height: 650px;
  }

  #choseUs .content .txt h4 {
    font-size: 2.35rem;
  }

  #choseUs .content .txt p {
    font-size: 1rem;
    line-height: 29px;
  }

  #choseUs .content button {
    width: 140px;
    height: 45px;
  }
}

@media only screen and (max-width: 1023px) {
  #choseUs .certificate .img img {
    width: 300px;
    height: 300px;
  }

  #product h3 {
    margin-bottom: 0px;
  }

  #product .flex {
    flex-wrap: wrap;
  }
  #product .c-card {
    width: 47%;
    margin-top: 50px;
  }
}

@media only screen and (max-width: 767px) {
  #welcome {
    height: auto;
  }

  #welcome .flex {
    flex-direction: column;
  }

  #welcome .image {
    width: 100%;
  }

  #welcome .image img {
    height: 300px;
  }
  #welcome .content {
    width: 100%;
  }
  #welcome .c-container {
    width: 98%;
    margin-bottom: 20px;
  }

  #welcome h2 {
    font-size: 2.6rem;
  }
  #welcome p {
    font-size: 1.05rem;
    line-height: 30px;
  }
  #welcome button {
    width: 140px;
  }
  #aboutUs h3 {
    font-size: 2.2rem;
  }
  #aboutUs button {
    width: 140px;
  }

  #aboutUs p {
    width: 96%;
  }

  #choseUs .title h3 {
    font-size: 2.2rem;
    text-align: center;
    margin-left: 0px;
  }

  #choseUs .flex-container {
    flex-direction: column;
  }
  #choseUs .content {
    width: 100%;
    margin-inline: 0px;
  }

  #choseUs .certificate .img {
    height: 350px;
  }

  #choseUs .certificate .img img {
    width: 250px;
    height: 250px;
  }

  #choseUs .content img {
    height: 350px;
  }
  #product .c-card {
    width: 400px;
    margin-top: 50px;
  }
}

@media only screen and (max-width: 499px) {
  #welcome .image img {
    height: 300px;
  }
  #welcome h2 {
    font-size: 2.2rem;
  }
  #welcome p {
    font-size: 1rem;
    line-height: 26px;
  }
  #welcome button {
    width: 130px;
    font-size: 0.95rem;
    height: 45px;
  }
  #aboutUs p {
    line-height: 27px;
    width: 98%;
  }
  #aboutUs button {
    width: 130px;
    height: 45px;
  }
  #choseUs .title h3 {
    font-size: 2rem;
  }

  #choseUs .certificate .img img {
    width: 200px;
    height: 200px;
  }
  #choseUs .content .txt h4 {
    font-size: 2rem;
  }
  #choseUs .content .txt p {
    font-size: 0.95rem;
    line-height: 27px;
  }
  #choseUs .content button {
    width: 130px;
    font-size: 0.95rem;
  }
  #product h3 {
    font-size: 2.2rem;
  }

  #product .c-card h5 {
    font-size: 1.6rem;
  }

  #product .c-card .icon {
    width: 65px;
    height: 65px;
    font-size: 1.8rem;
  }

  #product .c-card p {
    font-size: 0.95rem;
  }
}