.solution_box {
  position: relative;
}

/* .about_us_box {
  background-image: url(../image/index/14e65aaba72411781b39a2e1b7468e3.png);
  background-position: center center;
  background-size: 100% 100%;
  background-repeat: no-repeat;
} */

.xxline {
  position: absolute;
  display: block;
  width: 100%;
  left: 0;
  bottom: 25%;
  z-index: 0;
}

.video_box {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  display: none;
  z-index: 3;
}

.video_box video {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: block;
  width: 40%;
}

.video_box p {
  position: absolute;
  left: 0;
  top: 0;
  display: block;
  width: 100%;
  height: 100%;
}

/* solution */
.solution {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 240px 0 200px 0;
  color: #fff;
}

.solution h4 {
  font-weight: bold;
}

.solution span {
  display: block;
  margin: 80px 0 120px 0;
  width: 50%;
  text-align: center;
  line-height: 40px;
}

.solution_box {
  background-image: url(../image/index/1\ \(48\).png);
  background-position: center center;
  background-repeat: no-repeat;
  background-size: 100% 100%;
}

.solution span p:nth-child(2) {
    display: none;
}

.solution span p {
    margin: 0 !important;
}

.video_btnbox {
  position: relative;
  z-index: 2;
  cursor: pointer;
}

.video_btnbox img {
  display: block;
  width: 100%;
  transition: all 0.6s;
}

.video_btnbox img:hover {
  transform: scale(1.1);
  transition: all 0.6s;
}

/* assortment */
.assortment .l,
.assortment .r {
  width: 50%;
}

.assortment .l h4 {
  font-weight: bold;
}

.assortment {
  padding: 120px 0;
  color: #fff;
}

.bannerassortment_one h4 {
  margin: 100px 0 60px 0;
  font-weight: bold;
}

.bannerassortment_one span {
  display: block;
  line-height: 40px;
}

.assortment_box {
  background-image: url(../image/index/2\ \(23\).png);
  background-position: center center;
  background-repeat: no-repeat;
  background-size: 100% 100%;
}

.assortment .r ul {
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.assortment .r ul li {
  position: relative;
  padding: 0 0 30px 0 !important;
  width: 100%;
  text-align: center;
  cursor: pointer;
}

.assortment .r ul .four_act::after {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translate(-50%, -50%);
  content: " ";
  display: block;
  width: 100%;
  height: 10px;
  background: #FFFFFF;
}

.bannerassortment_one {
  position: relative;
}

.assortmentarrow_btnbox {
  position: relative;
  top: 100%;
  display: flex;
  margin: 100px 0 0 0;
  z-index: 1;
}

.swiper-button-prevassortment_one,
.swiper-button-nextassortment_one {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 15px;
  width: 60px;
  height: 60px;
  border: 1px solid #FFFFFF;
  border-radius: 50px;
  transition: all 0.6s;
}

.swiper-button-prevassortment_one:hover,
.swiper-button-nextassortment_one:hover {
  background-color: #fff;
  color: #0062A0;
  transition: all 0.6s;
}

.bannerassortment_one .swiper-containerassortment_one {
  overflow: hidden !important;
}

.swiper-containerassortment_one {
  display: none;
}

.assortment_one_act {
  display: block;
}

.assortment_box_two {
  background-image: url(../image/index/3\ \(11\).png);
  background-position: center center;
  background-repeat: no-repeat;
  background-size: 100% 100%;
}

.swiper-button-prevassortment_two,
.swiper-button-nextassortment_two {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 15px;
  width: 60px;
  height: 60px;
  border: 1px solid #FFFFFF;
  border-radius: 50px;
  transition: all 0.6s;
}

.swiper-button-prevassortment_two:hover,
.swiper-button-nextassortment_two:hover {
  background-color: #fff;
  color: #0062A0;
  transition: all 0.6s;
}

.swiper {
  width: 100%;
  height: 100%;
  /* background: #000; */
}

.swiper-slide {
  font-size: 18px;
  color: #fff;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  /* padding: 40px 60px; */
}

.parallax-bg {
  position: absolute;
  left: 0;
  top: 0;
  width: 130%;
  height: 100%;
  -webkit-background-size: cover;
  background-size: cover;
  background-position: center;
}

.swiper-slide .title {
  font-size: 41px;
  font-weight: 300;
}

.swiper-slide .subtitle {
  font-size: 21px;
}

.ad {
  position: relative;
}

.adtext_box {
  margin: 160px 0 340px 0 !important;
  padding: 60px 80px;
  width: 40%;
  background-color: rgba(0, 0, 0, 0.2);
}

.parallax-bg {
  background-position: center center;
  background-repeat: no-repeat;
  background-size: 100% 100%;
}

.adtext_box .title {
  margin: 0 0 60px 0;
  font-size: 26px;
  text-align: center;
}

.adtext_box .text {
  font-size: 16px;
  line-height: 40px;
}

.ad .swiper-wrapper {
  padding: 0 15% !important;
}

.ad .swiper-pagination {
  top: 95%;
  left: 50%;
  transform: translate(-50%, -50%);
  bottom: 10px;
  z-index: 1;
}

.ad .swiper-pagination-clickable .swiper-pagination-bullet {
  width: 16px;
  height: 16px;
  background-color: rgba(255, 255, 255, 0.3);
}

.ad .swiper-pagination-bullet-active {
  background-color: #fff !important;
}

.ad .swiper-pagination-bullet-active::after {
  content: " ";
  display: none;
}

/* product */
.product {
  padding: 100px 0;
}

.product .titbox h4 {
  margin: 0 0 30px 0;
  font-weight: bold;
}

.product .titbox .r {
  width: 10%;
}

.product .titbox .r a {
  display: block;
  padding: 15px 0;
  text-align: center;
  border-radius: 0 0 0 25px;
  border: 1px solid rgba(0, 0, 0, 0.6);
  transition: all 0.6s;
}

.product .titbox .r a:hover {
  color: #0062A0 !important;
  border: 1px solid #0062A0;
  transition: all 0.6s;
}

.product_content .l ul li h4 {
  margin: 0 0 20px 0;
  font-size: 18px;
}

.product_content .l ul li p {
  margin: 0;
  font-size: 16px;
}

.product_content {
  margin: 80px 0 0 0;
}

.product_content .l {
  width: 60%;
}

.product_content .l img {
  display: block;
  width: 100%;
}

.product_content .r {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 60px;
  width: 40%;
  box-sizing: border-box;
  background-color: #fff;
}

.product_content .r h4 {
  line-height: 36px;
  font-weight: bold;
}

.product_content .r p {
  color: rgba(0, 0, 0, 0.6);
}

.product_content .r span {
  line-height: 36px;
}

.product_content .r a {
  display: flex;
  justify-content: space-between;
  padding: 0 0 15px 0;
  width: 50%;
  color: #0062A0 !important;
  border-bottom: 1px solid #0062A0;
  transition: all 0.6s;
}

.product_content .r a:hover {
  width: 55%;
  transition: all 0.6s;
}

.product_content .l ul li a {
  position: relative;
  display: block;
  margin: 0 50px;
  padding: 40px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.product_content .l ul li a:hover .liarrow {
  left: 114%;
  transition: all 0.6s;
  z-index: 1;
}

.product_content .l ul li:hover {
  box-shadow: 2px 2px 2px 2px rgba(0, 0, 0, 0.3);
}

.liarrow {
  position: absolute;
  top: 0;
  left: 70%;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100px;
  height: 100%;
  background-color: #fff;
  z-index: -1;
  transition: all 0.6s;
}

.liarrow i {
  color: #0062A0;
  font-size: 30px;
}

.product_content .l ul li:last-child a {
  border-bottom: none !important;
}

.product_content .l ul {
  background-color: #fff;
}

/* .product_content .r {
  display: flex;
  width: 65%;
} */

.product_box {
  background-color: #F8FAFB;
}

.product_content .r .content_text {
  position: relative;
}

.product_content .r .content_text img {
  display: block;
  width: 100%;
  height: 100%;
}

.product_content .r .content_text .text_box {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 40px 100px;
  background-color: rgba(255, 255, 255, 0.8);
  line-height: 36px;
}

.content_text {
  display: none;
}

.content_text_act {
  display: flex;
}

/* about_us */
.about_us {
  padding: 100px 0 0 0;
}

.about_us .l h4 {
  margin: 0 0 30px 0;
  font-weight: bold;
}

.about_us .l {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.about_us .r {
  padding: 0 15% 0 0;
}

.ltit {
  padding: 0 0 0 30%;
  box-sizing: border-box;
}

.bg_box {
  padding: 80px 100px 80px 30%;
  box-sizing: border-box;
  background: #0062A0;
  border-radius: 0px 80px 80px 0px;
}

.about_us .l a {
  margin: 80px 0 0 0;
  color: #fff !important;
  border: 1px solid #fff !important;
}

.bg_box {
  color: #fff;
}

.about_us .l ul li p {
  margin: 0;
}

.about_us .l ul li {
  margin: 0 0 20px 0;
  line-height: 30px;
}

.about_us .l a {
  display: block;
  padding: 15px 0;
  width: 25%;
  text-align: center;
  border: 1px solid rgba(0, 0, 0, 0.6);
  border-radius: 0 25px 0 0;
}

.about_us .l,
.about_us .r {
  width: 45%;
}

.about_us {
  flex-wrap: wrap;
}

.about_us .r img {
  display: block;
  width: 100%;
}

.about_us .r span {
  display: block;
  margin: 80px 0 0 0;
  line-height: 40px;
}

@media screen and (max-width: 1680px) {

  /* solution */
  .solution {
    padding: 210px 0 170px 0;
  }

  .solution h4 {
    font-size: 32px;
  }

  .solution span {
    margin: 70px 0 110px 0;
    line-height: 35px;
    font-size: 14px;
  }

  /* assortment */
  .assortment {
    padding: 110px 0;
  }

  .assortment .l h4 {
    font-size: 32px;
  }

  .assortment .l h5 {
    font-size: 18px;
  }

  .assortment .r ul {
    font-size: 16px;
  }

  .assortment .r ul li {
    padding: 0 0 20px 0 !important;
  }

  .bannerassortment_one h4 {
    margin: 90px 0 50px 0;
    font-size: 24px;
  }

  .bannerassortment_one span {
    line-height: 35px;
    font-size: 16px;
  }

  .assortmentarrow_btnbox {
    margin: 90px 0 0 0;
  }

  /* ad */
  .adtext_box {
    margin: 150px 0 330px 0 !important;
    padding: 50px 70px;
  }

  .adtext_box .title {
    margin: 0 0 50px 0;
    font-size: 24px;
  }

  .adtext_box .text {
    font-size: 14px;
    line-height: 35px;
  }

  /* product */
  .product {
    padding: 90px 0;
  }

  .product .titbox h4 {
    margin: 0 0 20px 0;
    font-size: 40px;
  }

  .product .titbox h5 {
    font-size: 24px;
  }

  .product .titbox .r a {
    font-size: 14px;
  }

  .product_content .l ul li a {
    margin: 0 40px;
  }

  .product_content .l ul li h4 {
    margin: 0 0 15px 0;
    font-size: 16px;
  }

  .product_content .l ul li p {
    font-size: 14px;
  }

  .product_content .r .content_text .text_box {
    padding: 30px 90px;
    line-height: 30px;
  }

  .product_content .l ul li a:hover .liarrow {
    left: 110%;
  }

  .product_content .r .content_text .text_box span {
    font-size: 14px;
  }

  .product_content {
    margin: 70px 0 0 0;
  }

  /* about */
  .about_us {
    padding: 90px 0 0 0;
  }

  .about_us .l h4 {
    margin: 0 0 20px 0;
    font-size: 40px;
  }

  .about_us .l h5 {
    font-size: 24px;
  }

  .about_us .l ul li p,
  .about_us .l a {
    font-size: 14px;
  }

  .about_us .r span {
    margin: 70px 0 0 0;
    font-size: 14px;
    line-height: 35px;
  }

  .bg_box {
    padding: 70px 90px 70px 30%;
  }

  .about_us .l a {
    margin: 70px 0 0 0;
  }
}

@media screen and (max-width: 1600px) {

  /* solution */
  .solution {
    padding: 200px 0 160px 0;
  }

  .solution h4 {
    font-size: 28px;
  }

  .solution span {
    margin: 60px 0 100px 0;
    line-height: 30px;
  }

  /* assortment */
  .assortment {
    padding: 100px 0;
  }

  .assortment .l h4 {
    font-size: 28px;
  }

  .assortment .l h5 {
    font-size: 16px;
  }

  .assortment .r ul li {
    padding: 0 0 15px 0 !important;
  }

  .bannerassortment_one h4 {
    margin: 80px 0 40px 0;
    font-size: 22px;
  }

  .bannerassortment_one span {
    line-height: 30px;
    font-size: 14px;
  }

  .assortmentarrow_btnbox {
    margin: 80px 0 0 0;
  }

  /* ad */
  .adtext_box {
    margin: 140px 0 320px 0 !important;
    padding: 40px 60px;
  }

  .adtext_box .title {
    margin: 0 0 40px 0;
    font-size: 22px;
  }

  .adtext_box .text {
    line-height: 30px;
  }

  /* product */
  .product {
    padding: 80px 0;
  }

  .product .titbox h4 {
    margin: 0 0 15px 0;
    font-size: 30px;
  }

  .product .titbox h5 {
    font-size: 22px;
  }

  .product_content .l ul li a {
    margin: 0 30px;
  }

  .product_content .r .content_text .text_box {
    padding: 20px 80px;
    line-height: 25px;
  }

  .product_content .l ul li a:hover .liarrow {
    left: 100%;
  }

  .product_content {
    margin: 60px 0 0 0;
  }

  /* about */
  .about_us {
    padding: 80px 0 0 0;
  }

  .about_us .l h4 {
    margin: 0 0 15px 0;
    font-size: 30px;
  }

  .about_us .l h5 {
    font-size: 22px;
  }

  .about_us .r span {
    margin: 60px 0 0 0;
    line-height: 30px;
  }

  .bg_box {
    padding: 60px 80px 60px 30%;
  }

  .about_us .l a {
    margin: 60px 0 0 0;
  }
}


@media screen and (max-width: 1440px) {

  /* solution */
  .solution {
    padding: 180px 0 140px 0;
  }

  .solution h4 {
    font-size: 26px;
  }

  .solution span {
    margin: 50px 0 90px 0;
    line-height: 25px;
  }

  /* assortment */
  .assortment {
    padding: 90px 0;
  }

  .assortment .l h4 {
    font-size: 26px;
  }

  .bannerassortment_one h4 {
    margin: 70px 0 30px 0;
    font-size: 20px;
  }

  .bannerassortment_one span {
    line-height: 25px;
  }

  .assortmentarrow_btnbox {
    margin: 70px 0 0 0;
  }

  /* ad */
  .adtext_box {
    margin: 130px 0 310px 0 !important;
    padding: 30px 50px;
  }

  .adtext_box .title {
    margin: 0 0 30px 0;
    font-size: 20px;
  }

  .adtext_box .text {
    line-height: 25px;
  }

  /* product */
  .product {
    padding: 70px 0;
  }

  .product .titbox h4 {
    font-size: 28px;
  }

  .product .titbox h5 {
    font-size: 20px;
  }

  .product_content .l ul li a {
    margin: 0 20px;
  }

  .product_content .r .content_text .text_box {
    padding: 15px 70px;
  }

  .product_content .l ul li a:hover .liarrow {
    left: 100%;
  }

  .product_content {
    margin: 50px 0 0 0;
  }

  /* about */
  .about_us {
    padding: 70px 0 0 0;
  }

  .about_us .l h4 {
    font-size: 28px;
  }

  .about_us .l h5 {
    font-size: 20px;
  }

  .about_us .r span {
    margin: 50px 0 0 0;
    line-height: 25px;
  }

  .bg_box {
    padding: 50px 70px 50px 30%;
  }

  .about_us .l a {
    margin: 50px 0 0 0;
  }
}

@media screen and (max-width: 1366px) {

  /* solution */
  .solution {
    padding: 160px 0 120px 0;
  }

  .solution h4 {
    font-size: 24px;
  }

  .solution span {
    margin: 40px 0 80px 0;
  }

  /* assortment */
  .assortment {
    padding: 80px 0;
  }

  .assortment .l h4 {
    font-size: 24px;
  }

  .bannerassortment_one h4 {
    margin: 60px 0 20px 0;
    font-size: 20px;
  }

  .assortmentarrow_btnbox {
    margin: 60px 0 0 0;
  }

  /* ad */
  .adtext_box {
    margin: 120px 0 300px 0 !important;
    padding: 30px 50px;
  }

  .adtext_box .title {
    margin: 0 0 20px 0;
    font-size: 18px;
  }

  /* product */
  .product {
    padding: 60px 0;
  }

  .product .titbox h4 {
    font-size: 26px;
  }

  .product .titbox h5 {
    font-size: 18px;
  }

  .product_content .l ul li a {
    margin: 0 15px;
  }

  .product_content .r .content_text .text_box {
    padding: 15px 60px;
  }

  .product_content .l ul li a:hover .liarrow {
    left: 100%;
  }

  .product_content {
    margin: 40px 0 0 0;
  }

  /* about */
  .about_us {
    padding: 60px 0 0 0;
  }

  .about_us .l h4 {
    font-size: 26px;
  }

  .about_us .l h5 {
    font-size: 18px;
  }

  .about_us .r span {
    margin: 40px 0 0 0;
  }

  .bg_box {
    padding: 40px 60px 40px 30%;
  }

  .about_us .l a {
    margin: 40px 0 0 0;
  }
}

@media screen and (max-width: 1280px) {

  /* solution */
  .solution {
    padding: 140px 0 100px 0;
  }

  .solution h4 {
    font-size: 22px;
  }

  .solution span {
    margin: 30px 0 70px 0;
  }

  /* assortment */
  .assortment {
    padding: 70px 0;
  }

  .assortment .l h4 {
    font-size: 22px;
  }

  .bannerassortment_one h4 {
    margin: 50px 0 15px 0;
    font-size: 18px;
  }

  .assortmentarrow_btnbox {
    margin: 50px 0 0 0;
  }

  /* ad */
  .adtext_box {
    margin: 110px 0 190px 0 !important;
    padding: 20px 40px;
  }

  .adtext_box .title {
    margin: 0 0 15px 0;
    font-size: 14px;
  }

  /* product */
  .product {
    padding: 50px 0;
  }

  .product .titbox h4 {
    font-size: 24px;
  }

  .product .titbox h5 {
    font-size: 16px;
  }

  .product_content .r .content_text .text_box {
    padding: 15px 50px;
  }

  .product_content .l ul li a:hover .liarrow {
    left: 100%;
  }

  .product_content {
    margin: 30px 0 0 0;
  }

  /* about */
  .about_us {
    padding: 50px 0 0 0;
  }

  .about_us .l h4 {
    font-size: 24px;
  }

  .about_us .l h5 {
    font-size: 16px;
  }

  .about_us .r span {
    margin: 30px 0 0 0;
  }

  .bg_box {
    padding: 30px 50px 30px 30%;
  }

  .about_us .l a {
    margin: 30px 0 0 0;
  }
}

@media screen and (max-width: 1024px) {

  /* solution */
.solution {
    padding: 100px 0 60px 0;
}

  .solution h4 {
    font-size: 20px;
  }

  .solution span {
    margin: 20px 0 60px 0;
  }

  /* assortment */
  .assortment {
    padding: 60px 0;
  }

  .assortment .l h4 {
    font-size: 20px;
  }

  .bannerassortment_one h4 {
    margin: 40px 0 15px 0;
    font-size: 16px;
  }

  .assortmentarrow_btnbox {
    margin: 40px 0 0 0;
  }

  /* ad */
  .adtext_box {
    margin: 100px 0 180px 0 !important;
    padding: 15px 30px;
  }

  /* product */
  .product {
    padding: 40px 0;
  }

  .product .titbox h4 {
    font-size: 22px;
  }

  .product_content .r .content_text .text_box {
    padding: 15px 40px;
  }

  .product_content .l ul li a:hover .liarrow {
    left: 100%;
  }

  .product_content {
    margin: 20px 0 0 0;
  }

  /* about */
  .about_us {
    padding: 40px 0 0 0;
  }

  .about_us .l h4 {
    font-size: 22px;
  }

  .about_us .r span {
    margin: 20px 0 0 0;
  }

  .bg_box {
    padding: 20px 40px 20px 30%;
  }

  .about_us .l a {
    margin: 20px 0 0 0;
  }
}

@media screen and (max-width: 980px) {
    .assortmentarrow_btnbox {
        display: none;
    }
    
    .bannerassortment_one span {
        margin: 0 0 5px 0;
    }
    
    .adtext_box {
        margin: 20px 0 !important;
    }
    
    .ad .swiper-wrapper {
        padding: 0 0% !important;
        
  box-sizing: border-box;
    }
    
    .adtext_box {
        width: 100%;
    }
    
        .ad .swiper-pagination {
            display: none;
        }
        
        .adtext_box .text p:nth-child(2) {
             display: none;
        }
    
    .solution span p {
        line-height: 1.5;
    }

  /* solution */
  .solution {
    padding: 100px 0 60px 0;
  }

  .solution h4 {
    font-size: 18px;
  }

  .solution span {
    margin: 15px 0 50px 0;
    width: 80%;
  }

  .bannerassortment_one span {
    line-height: 1.5;
  }

  /* assortment */
  .assortment {
    padding: 50px 0;
  }

  .assortment .l h4 {
    font-size: 18px;
  }

  .bannerassortment_one h4 {
    margin: 30px 0 15px 0;
  }

  .assortmentarrow_btnbox {
    margin: 30px 0 0 0;
  }

  .assortment .l,
  .assortment .r {
    width: 100%;
  }

  .assortment .r {
    margin: 15px 0 0 0;
  }

  .assortment {
    flex-wrap: wrap;
  }

  .adtext_box .text {
    line-height: 1.5;
  }

  /* ad */
  /*.adtext_box {*/
  /*  margin: 90px 0 !important;*/
  /*  padding: 15px 20px;*/
  /*}*/

  /*.adtext_box {*/
  /*  width: 70%;*/
  /*}*/

  .ad .swiper-pagination {
    top: 90%;
  }

  /* product */
  .product {
    padding: 30px 0;
  }

  .product .titbox h4 {
    font-size: 20px;
  }

  .product_content .r .content_text .text_box {
    padding: 15px 30px;
  }

  .product_content .l,
  .product_content .r {
    width: 100%;
  }

  .product_content {
    flex-wrap: wrap;
  }

  .product_content .l ul li a {
    padding: 20px 0;
  }

  .product_content .l ul li a:hover .liarrow {
    left: 80%;
  }

  .product_content {
    margin: 15px 0 0 0;
  }

  /* about */
  .about_us {
    flex-wrap: wrap;
    padding: 30px 0 0 0;
  }

  .about_us .l h4 {
    font-size: 20px;
  }

  .about_us .r span {
    margin: 15px 0 0 0;
  }

  .about_us .l,
  .about_us .r {
    width: 100%;
  }

  .about_us .l ul {
    margin: 15px 0 0 0 !important;
  }

  .about_us .r {
    margin: 15px 0 0 0;
  }

  .about_us .l a {
    width: 10%;
  }

  .product_content .r {
    padding: 20px;
  }

  .product_content .r h4 {
    line-height: 1.5;
  }

  .product_content .r p {
    margin: 15px 0 !important;
  }

  .product_content .r span {
    line-height: 1.5;
  }

  .product_content .r a {
    margin: 15px 0 0 0;
  }

  .bg_box {
    padding: 15px 30px 15px 30px;
  }

  .about_us .l a {
    margin: 15px 0 0 0;
  }

  .about_us .r {
    padding: 0 15%;
  }
}

@media screen and (max-width: 768px) {

  .video_box video {
    width: 60%;
  }

  /* solution */
  .solution {
        padding: 50px 0 40px 0;
  }

  .solution h4 {
    font-size: 16px;
  }

  .solution span {
    margin: 15px 0 40px 0;
  }

  /* assortment */
  .assortment {
    padding: 40px 0;
  }

  .bannerassortment_one h4 {
    margin: 20px 0 15px 0;
  }

  .assortmentarrow_btnbox {
    margin: 20px 0 0 0;
  }

  .bannerassortment_one span {
    line-height: 1.3;
  }

  .adtext_box .text {
    line-height: 1.3;
  }

  /* ad */
  /*.adtext_box {*/
  /*  margin: 80px 0 !important;*/
  /*  padding: 15px 20px;*/
  /*}*/

  /* product */
  .product {
    padding: 20px 0;
  }

  .product .titbox h4 {
    font-size: 18px;
  }

  .product_content .r .content_text .text_box {
    padding: 15px 20px;
  }

  .product .titbox .r {
    width: 15%;
  }

  .about_us .l a {
    width: 15%;
  }
}

@media screen and (max-width: 640px) {

  /* solution */
  .solution {
    padding: 20px 0 20px 0;
  }

  .solution span {
    margin: 15px 0 30px 0;
  }

  /* assortment */
  .assortment {
    padding: 30px 0;
  }

  /* ad */
  /*.adtext_box {*/
  /*  margin: 70px 0 !important;*/
  /*  padding: 15px 20px;*/
  /*}*/

  /* product */
  .product {
    padding: 15px 0;
  }
  
  .bannerassortment_one h4 {
      margin: 10px 0;
  }
}

@media screen and (max-width: 375px) {

  /* solution */
  .solution {
    padding: 15px 0;
  }

  .solution span {
    margin: 15px 0 20px 0;
  }
  
  .video_btnbox img {
      width: 55%;
  }
  
  
  .video_btnbox {
     display: flex;
     align-items: center;
     justify-content: center;
  }

  /* assortment */
  .assortment {
    padding: 15px 0;
  }

  /* ad */
  /*.adtext_box {*/
  /*  margin: 60px 0 !important;*/
  /*  padding: 15px 20px;*/
  /*}*/

  .product .titbox .r {
    width: 20%;
  }

  .about_us .l a {
    width: 20%;
  }
}