@media screen and (max-width: 1500px) {
  .txt {
    font-size: 52px;
  }
  .top_area {
    background-size: 86%;
  }
  .txt5 {
    font-size: 46px;
  }
  .txt6 {
    font-size: 20px;
    right: 30%;
  }
  .txt2 {
    font-size: 34px;
  }
  .txt4 {
    font-size: 19px;
  }
  .point_title {
    font-size: 27px;
  }
  .point_txt {
    font-size: 20px;
  }
  .point_img {
    width: 1200px;
  }
  .first,
  .third {
    margin-right: 7%;
  }
  .second {
    margin-right: 7%;
  }
}

@media screen and (max-width: 1300px) {
  .explan_container {
    width: 63%;
  }
  .circle {
    width: 207px;
  }

  .top_area {
    background-size: 96%;
  }
  .btn-container {
    padding: 1.5% 2%;
    font-size: 20px;
  }
  .txt4 {
    width: 66%;
  }
  .txt {
    font-size: 50px;
    right: 21%;
  }
  .txt5 {
    font-size: 42px;
    right: 10%;
  }
  .txt6 {
    right: 25%;
    line-height: 75px;
  }
  .point_txt,
  .txt6,
  .txt4 {
    font-size: 18px;
  }
  .point_img {
    width: 900px;
  }
}
@media screen and (max-width: 1200px) {
  .intro_txt_area {
    display: flex;
    width: 92%;
    justify-content: center;
    height: 63%;
  }
  .intro {
    height: 500px;
  }
  .txt6 {
    line-height: 68px;
  }
  .first,
  .third {
    margin-right: 0%;
  }
  .second {
    margin: 0;
  }
  .point_img {
    width: 700px;
  }
  .first_point {
    width: 880px;
  }
  .txt2 {
    font-size: 29px;
  }
  .point_title {
    font-size: 24px;
  }
  .txt3 {
    font-size: 29px;
  }
  .point_txt,
  .txt6,
  .txt4 {
    font-size: 17px;
  }
  .txt_recommend {
    font-size: 20px;
  }
  .top_area {
    background-size: 100%;
  }
  .txt span {
    margin-top: 15%;
  }
  .top_area {
    height: 690px;
  }
  .txt {
    top: 12%;
    right: 18%;
  }
  .txt {
    top: 15%;
    right: 19%;
    font-size: 46px;
  }
}
@media screen and (max-width: 1000px) {
  .top_area {
    height: 623px;
  }
  .txt6 {
    line-height: 61px;
  }
  .txt {
    top: 13%;
    right: 19%;
    font-size: 43px;
  }
  .txt5 {
    font-size: 37px;
  }
  .first_point {
    width: 780px;
  }
  .txt3 {
    font-size: 27px;
  }
  .explan_container {
    width: 73%;
  }
  .circle {
    width: 171px;
  }
}
@media screen and (max-width: 900px) {
  .txt {
    top: 12%;
    right: 15%;
    font-size: 42px;
  }
  .txt span {
    margin-top: 14%;
  }
  .point_title {
    font-size: 22px;
  }
  .point_txt,
  .txt6,
  .txt4 {
    font-size: 15px;
  }
  .first_point {
    width: 700px;
  }
  .txt6 {
    line-height: 56px;
  }
  .third_area {
    height: 310px;
  }
  .txt3 {
    font-size: 24px;
  }
  .btn-container {
    padding: 1.5% 2%;
    font-size: 16px;
  }
  .six_area {
    grid-template-columns: repeat(2, 1fr); 
}

}
@media screen and (max-width: 800px) {
  .copyright {
    text-decoration: none;
    font-size: 13px;
    padding: 2% 0;
  }
  .top_area {
    height: 550px;
  }
  .txt {
    top: 10%;
    right: 15%;
    font-size: 39px;
  }
  .intro_txt_area {
    width: 94%;
  }
  .intro {
    height: 436px;
  }
  .txt5 {
    margin-left: 3%;
  }
  .txt6 {
    line-height: 45px;
  }
  .txt2 {
    padding-top: 60px;
  }
  .second_area,
  .forth_area {
    padding-bottom: 60px;
  }
  .first_point {
    width: 600px;
  }
  .point_title {
    font-size: 18px;
  }
  .point_txt,
  .txt6,
  .txt4 {
    font-size: 14px;
  }
  .txt2 {
    font-size: 25px;
  }
  .explan_container {
    width: 83%;
  }
  .circle {
    width: 150px;
  }
  .txt3 {
    font-size: 20px;
  }
}
@media screen and (max-width: 725px) {
  .txt {
    font-size: 34px;
    top: 6%;
  }
  .top_area {
    height: 459px;
  }
  .intro_txt_area {
    height: 76%;
    width: 83%;
  }
  .intro {
    height: 361px;
  }
  .first_point {
    width: 458px;
    flex-direction: column;
  }
  .point_img {
    width: 100%;
  }
  .txt5 {
    font-size: 31px;
  }
  .point_title br {
    display: none;
  }
  .point_title {
    margin-top: 3%;
    margin-bottom: 1%;
  }
  .second {
    flex-direction: column-reverse;
    margin-top: 5%;
  }
  .third {
    margin-top: 5%;
  }
  .txt6 {
    line-height: 37px;
  }
  .txt3 {
    letter-spacing: 6px;
  }
  .txt4 {
    width: 77%;
  }
  .third_area {
    height: 276px;
  }
  .sml {
    font-size: 11px;
  }
  .circle {
    width: 114px;
    height: 78px;
  }
  .txt3 {
    font-size: 22px;
  }
  /* br {
  display: none;
} */
}
@media screen and (max-width: 700px) {
  .intro_txt_area {
    height: 76%;
    width: 100%;
  }
}
@media screen and (max-width: 600px) {
  .explan_container {
    padding: 3% 4%;

}
  .circle {
    display: none;
  }
  .txt_recommend {
    font-size: 16px;
  }
  .copyright,
  .copyright a {
    font-size: 12px;
  }
  .txt span {
    margin-top: 9%;
  }
  .txt {
    font-size: 32px;
    top: 11%;
  }
  .txt6 {
    line-height: 30px;
  }
  .txt5 {
    font-size: 26px;
  }
  .point_txt,
  .txt6,
  .txt4 {
    font-size: 13px;
  }
  .intro {
    height: 315px;
  }
  .txt2 {
    font-size: 22px;
  }
  .txt3 {
    font-size: 21px;
    letter-spacing: 2px;
  }
  .first_point {
    width: 80%;
  }
}

@media screen and (max-width: 500px) {
  .top_area {
    height: 369px;
  }
  .txt {
    font-size: 27px;
    top: 7%;
  }
  .txt6 {
    line-height: 33px;
  }
  .first_point {
    width: 67%;
  }
  .txt3 {
    font-size: 20px;
    letter-spacing: 0px;
  }
  .txt4 {
    width: 92%;
  }
  .btn-container {
    font-size: 14px;
    margin-top: 3%;
  }
  .third_area {
    height: 232px;
  }
  .txt5 {
    width: 20%;
    font-size: 23px;
  }
  .copyright,
  .copyright a {
    font-size: 11px;
  }
}
@media screen and (max-width: 400px) {
  .explan_container {
    width: 90%;
  }
  .circle {
    width: 83px;
    height: 57px;
    font-size: 11px;
  }
  .txt_recommend {
    font-size: 14px;
  }
  .txt {
    font-size: 26px;
    top: 12%;
    right: 11%;
  }
  .top_area {
    background-size: 129%;
  }
  .txt5 {
    width: 20%;
    font-size: 21px;
  }
  .point_txt,
  .txt6,
  .txt4 {
    font-size: 12px;
  }
  .txt6 {
    line-height: 30px;
  }
  .intro {
    height: 262px;
  }
  .point_title {
    font-size: 15px;
  }
  .first_point {
    width: 80%;
  }
  .intro_txt_area {
    height: 81%;
    width: 100%;
  }
  .flex {
    gap: 5%;
  }
  .six_area {
    padding-left: 40px;
    padding-right: 40px;
  }
}

@media screen and (max-width: 360px) {
  .copyright,
  .copyright a {
    font-size: 10px;
  }
  .top_area {
    height: 319px;
  }
  .txt {
    top: 9%;
    right: 8%;
  }
  .txt5 {
    margin-left: 0;
  }
  .six_area {
    padding-left: 30px;
    padding-right: 30px;
  }
}

@media (min-width: 901px) {
  .six_area {
  grid-template-columns: repeat(3, 1fr);
  }
}