body {
  font-family: Arial, sans-serif;
  overflow-x: hidden;
  max-width: 750px;
  margin: 0 auto;
}

a {
  text-decoration: none;
  color: #333;
}

*{
  box-sizing: border-box;
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

p, h1, h2, h3, h4, h5, h6 {
  margin: 0;
  padding: 0;
}

.banner .banner-img {
  width: 100%;
  height: auto;
  display: block;
  margin-top: 0.3rem;
}

section .title {
  font-size: clamp(26px, 1.8vw, 32px);
  font-weight: bold;
  text-align: center;
  line-height: 1.5;
  color: #090909;
}

section .text {
  font-size: 16px;
  line-height: 30px;
  text-align: center;
  color: #666;
  hyphens: auto;
}

.first-section {
  padding: 40px 0 50px;
}

.first-section .text {
  margin-top: 20px;
}

.first-section .first-content {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
  margin-top: 25px;
}

.first-section .first-content .first-item {
  position: relative;
  border-radius: 10px;
  height: 200px;
}

.first-section .first-content .first-item::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 35%;
  bottom: 0;
  left: 0;
  background-image: linear-gradient(to bottom, transparent, black);
  border-radius: 0 0 10px 10px;
}

.first-section .first-content .first-item .item-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 10px;
}

.first-section .first-content .first-item p {
  position: absolute;
  width: 100%;
  bottom: 15px;
  color: #fff;
  font-size: clamp(15px, 1.2vw, 18px);
  line-height: 1.2;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.first-section .first-content .first-item p .icon {
  display: inline-block;
  width: 8%;
  min-width: 15px;
  height: auto;
  margin-right: 5px;
}

.first-section .sub-title {
  color: #0741a9;
  font-weight: bold;
  font-size: clamp(18px, 1.4vw, 24px);
  text-align: center;
  margin-top: 23px;
}

.second-section {
  background: url("/special/images/activated_carbon/second_bg.jpg") no-repeat center;
  background-size: cover;
  padding: 50px 0 60px;
}

.second-section .second-content .text-box .title, .second-section .second-content .text-box .text {
  color: #fff;
  text-align: left;
}

.second-section .second-content .list-box {
  background: #fff;
  border-radius: 10px;
  padding: 28px 0px 35px;
  position: relative;
  margin-top: 25px;
}

.second-section .second-content .list-box::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  left: 6px;
  top: 6px;
  background: rgba(255, 255, 255, 0.55);
  border-radius: 10px;
  z-index: 1;
}

.second-section .second-content .list-box h2 {
  padding-left: 25px;
  font-size: clamp(20px, 1.8vw, 30px);
  color: #333;
  position: relative;
  z-index: 2;
}

.second-section .second-content .list-box ul {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  margin-top: 32px;
  row-gap: 15px;
}

.second-section .second-content .list-box ul li {
  width: 33.3%;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  color: #333;
  font-size: clamp(16px, 1vw, 18px);
  line-height: 1.5;
  text-align: center;
}

.second-section .second-content .list-box ul li .icon1 {
  display: block;
}

.second-section .second-content .list-box ul li img {
  display: block;
  width: 42px;
  height: auto;
  margin-bottom: 6px;
}

.second-section .second-content .list-box ul li .icon2 {
  display: none;
}

.second-section .second-content .list-box ul .active {
  color: #0741a9;
}

.second-section .second-content .list-box ul .active .icon2 {
  display: block;
}

.second-section .second-content .list-box ul .active .icon1 {
  display: none;
}

.third-section {
  padding: 40px 0 50px;
}

.third-section .title {
  color: #0741a9;
}

.third-section .text1 {
  margin-top: 40px;
}

.third-section .text2 {
  margin-top: 20px;
}

.third-section .third-swiper {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  margin-top: 30px;
}

.third-section .third-swiper .third-left {
  width: 100%;
}

.third-section .third-swiper .third-left .third-tabs {
  display: flex;
  flex-direction: column;
  row-gap: 15px;
  position: relative;
}

.third-section .third-swiper .third-left .third-tabs::before {
  content: '';
  position: absolute;
  width: 2px;
  height: 110%;
  left: 15px;
  top: -5%;
  background-image: linear-gradient(to bottom, rgba(165, 163, 163, 0.05), rgba(131, 128, 128, 0.3), rgba(165, 163, 163, 0.05));
}

.third-section .third-swiper .third-left .third-tabs .tabs-item {
  cursor: pointer;
  padding-left: 35px;
  position: relative;
}

.third-section .third-swiper .third-left .third-tabs .tabs-item::before {
  content: '';
  position: absolute;
  width: 10px;
  height: 10px;
  left: 11px;
  top: 15px;
  background-color: #dedede;
  border-radius: 50%;
}

.third-section .third-swiper .third-left .third-tabs .tabs-item span {
  display: inline-block;
}

.third-section .third-swiper .third-left .third-tabs .tabs-item .tabs-title {
  font-size: clamp(18px, 1.2vw, 22px);
  background: #a2a2a2;
  border-radius: 10px;
  color: #fff;
  padding: 7px 18px;
  font-weight: bold;
}

.third-section .third-swiper .third-left .third-tabs .tabs-item .text {
  color: #a2a2a2;
  text-align: start;
  margin-top: 18px;
  line-height: 1.3;
}

.third-section .third-swiper .third-left .third-tabs .active::before {
  background-color: #0741a9;
}

.third-section .third-swiper .third-left .third-tabs .active .tabs-title {
  background-color: #0741a9;
}

.third-section .third-swiper .third-left .third-tabs .active .text {
  color: #0741a9;
}

.third-section .third-swiper .third-contents {
  width: 100%;
  position: relative;
  margin-top: 30px;
}

.third-section .third-swiper .third-contents .contents-item {
  display: none;
  position: relative;
}

.third-section .third-swiper .third-contents .contents-item img {
  display: block;
  width: 100%;
  height: auto;
}

.third-section .third-swiper .third-contents .contents-item p {
  color: #fffefe;
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 16px 10px;
  text-align: center;
  font-size: clamp(18px, 1.6vw, 30px);
  background: rgba(0, 0, 0, 0.59);
}

.third-section .third-swiper .third-contents .swiper-icon {
  cursor: pointer;
  position: absolute;
  width: 38px;
  height: 38px;
  top: 50%;
  transform: translateY(-50%);
}

.third-section .third-swiper .third-contents .swiper-icon img {
  width: 100%;
  height: auto;
  display: block;
}

.third-section .third-swiper .third-contents .prev {
  left: 15px;
  opacity: 0.59;
}

.third-section .third-swiper .third-contents .prev img {
  transform: rotateY(180deg);
}

.third-section .third-swiper .third-contents .next {
  right: 15px;
}

.third-section .third-swiper .third-contents .active {
  display: block;
}

.third-section ul {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  row-gap: 25px;
  margin-top: 25px;
}

.third-section ul .text {
  width: 100%;
  background-color: #f0f4ff;
  border-radius: 10px;
  padding: 15px 20px 20px;
  text-align: start;
}

.third-section ul .text:hover {
  box-shadow: 0px 0px 20px rgba(0, 0, 0, 0.1);
}

.third-section ul .text b {
  color: #333;
  font-size: clamp(20px, 1.4vw, 24px);
  line-height: 36px;
  display: block;
  margin-bottom: 10px;
}

.third-section ul .text span {
  color: #333;
}

.fourth-section {
  background-color: #e9f0ff;
  padding: 40px 0 50px;
}

.fourth-section .text1 {
  margin-top: 25px;
}

.fourth-section .fourth-content {
  margin-top: 30px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  row-gap: 25px;
}

.fourth-section .fourth-content li {
  width: 100%;
  background: #f9f9fb;
  padding: 20px;
}

.fourth-section .fourth-content li:hover {
  box-shadow: 0px 0px 20px rgba(0, 0, 0, 0.1);
}

.fourth-section .fourth-content li h2 {
  font-size: clamp(20px, 1.3vw, 24px);
  color: #333;
  text-align: center;
  font-weight: bold;
}

.fourth-section .fourth-content li h2 span {
  color: #0741a9;
}

.fourth-section .fourth-content li .text {
  padding: 15px 0px;
}

.fourth-section .fourth-content li .img-box {
  width: 100%;
  overflow-x: auto;
}

.fourth-section .fourth-content li .img-box img {
  display: block;
  width: 100%;
  height: auto;
  min-width: 900px;
  margin: 0 auto;
  max-width: 1306px;
}

.fifth-section {
  padding: 40px 0 50px;
}

.fifth-section .text1 {
  margin-top: 25px;
}

.fifth-section .fifth-content .fifth-item {
  margin-top: 30px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}

.fifth-section .fifth-content .fifth-item .item-left {
  width: 100%;
  overflow: hidden;
}

.fifth-section .fifth-content .fifth-item .item-left img {
  display: block;
  width: 100%;
  height: auto;
  transition: all .5s;
}

.fifth-section .fifth-content .fifth-item .item-left:hover img {
  transform: scale(1.1);
}

.fifth-section .fifth-content .fifth-item .item-right {
  width: 100%;
  background: #e9f0ff;
  padding: 15px;
}

.fifth-section .fifth-content .fifth-item .item-right h2 {
  font-size: clamp(19px, 1.3vw, 24px);
  color: #333333;
  margin-bottom: 10px;
  font-weight: bold;
  position: relative;
  z-index: 2;
}

.fifth-section .fifth-content .fifth-item .item-right h2::before {
  content: '';
  position: absolute;
  width: 180px;
  height: 11px;
  bottom: -1px;
  left: -3px;
  z-index: -1;
  background-image: linear-gradient(to right, rgba(7, 64, 169, 0.8), rgba(7, 64, 169, 0));
}

.fifth-section .fifth-content .fifth-item .item-right .text {
  text-align: start;
}

.fifth-section .fifth-content .fifth-item .item-right .text2 {
  color: #333;
  margin-top: 8px;
  font-weight: bold;
}

.fifth-section .fifth-content .fifth-item .item-right .text3 {
  padding-left: 20px;
  position: relative;
}

.fifth-section .fifth-content .fifth-item .item-right .text3::before {
  content: '';
  position: absolute;
  width: 9px;
  height: 9px;
  background: #f9bb0b;
  top: 10px;
  left: 0;
}

.sixth-section {
  background-color: #e9f0ff;
  padding: 40px 0 50px;
}

.sixth-section .text1 {
  margin-top: 25px;
}

.sixth-section .swiper-box {
  max-width: 95%;
  margin: 35px auto 0;
  position: relative;
}

.sixth-section .swiper-box .mySwiper {
  max-width: 85%;
}

.sixth-section .swiper-box .mySwiper .swiper-wrapper .swiper-slide .case-item {
  display: block;
  width: 100%;
}

.sixth-section .swiper-box .mySwiper .swiper-wrapper .swiper-slide .case-item .img-box {
  width: 100%;
  display: block;
}

.sixth-section .swiper-box .mySwiper .swiper-wrapper .swiper-slide .case-item .img-box img {
  display: block;
  width: 100%;
  height: auto;
}

.sixth-section .swiper-box .mySwiper .swiper-wrapper .swiper-slide .case-item .text-box {
  background: #fff;
  padding: 13px 20px 12px;
  height: 138px;
}

.sixth-section .swiper-box .mySwiper .swiper-wrapper .swiper-slide .case-item .text-box h2 {
  font-size: clamp(18px, 1.2vw, 20px);
  color: #333;
  text-align: center;
  border-bottom: 1px solid #d9d9d9;
  padding-bottom: 5px;
  line-height: 1.8;
  font-weight: bold;
  overflow: hidden;
  text-overflow: ellipsis;
  line-clamp: 1;
  -webkit-line-clamp: 1;
  display: -webkit-box;
  -webkit-box-orient: vertical;
}

.sixth-section .swiper-box .mySwiper .swiper-wrapper .swiper-slide .case-item .text-box .text {
  display: flex;
  flex-direction: column;
  flex-wrap: wrap;
  margin-top: 10px;
  line-height: 30px;
}

.sixth-section .swiper-box .mySwiper .swiper-wrapper .swiper-slide .case-item .text-box .text span {
  text-align: start;
  overflow: hidden;
  text-overflow: ellipsis;
  line-clamp: 1;
  -webkit-line-clamp: 1;
  display: -webkit-box;
  -webkit-box-orient: vertical;
}

.sixth-section .swiper-box .swiper-button-next, .sixth-section .swiper-box .swiper-button-prev {
  width: 48px;
  height: 48px;
  border-radius: 50%;
}

.sixth-section .swiper-box .swiper-button-next {
  background: #0741a9;
  right: 0;
}

.sixth-section .swiper-box .swiper-button-next:after, .sixth-section .swiper-box .swiper-button-prev:after {
  font-size: 26px;
}

.sixth-section .swiper-box .swiper-button-next:after {
  color: #fff;
}

.sixth-section .swiper-box .swiper-button-prev:after {
  color: #999;
}

.sixth-section .swiper-box .swiper-button-prev {
  border: 1px solid #999;
  left: 0;
}

.form-section {
  margin-top: 0;
}

@media (max-width: 575px) {
  .container {
    max-width: 100%;
    padding: 0 15px;
  }
  .sixth-section .swiper-box .mySwiper .swiper-wrapper .swiper-slide .case-item .text-box h2 {
    line-height: 2;
    padding-bottom: 8px;
  }
}

@media (min-width: 576px) {
  .container {
    max-width: 100%;
    padding: 0 15px;
  }
}