.detail-page {
  width: 100%;
  max-width: 1300px;
  margin: 0 auto;
  font-size: 14px;
  font-family: "Helvetica Neue", "Verdana", "sans-serif";
}

.mt-10 {
  margin-top: 10px;
}

.mt-40 {
  margin-top: 40px;
}

.mt-80 {
  margin-top: 80px;
}

.banner {
  position: relative;
  width: 100%;
}

.banner img {
  display: block;
  width: 100%;
}

.banner-content {
  position: absolute;
}

.white.banner-content {
  color: #fff;
}
.black.banner-content {
  color: #333;
}




/* topbar */
.topbar {
  width: 100%;
}

.nav-menu {
  box-sizing: border-box;
  padding: 0 10px;
  border-radius: 10px;
  background-color: #435055;
}

.nav-menu label {
  cursor: pointer;
  user-select: none;
  height: 49px;
  line-height: 49px;
  font-size: 20px;
  color: #fff;
  text-align: center;
  background-color: #435055;
}

.nav-menu label,
.nav-menu input {
  display: none;
}

.menu-list {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
}

.nav-menu a {
  height: 59px;
  line-height: 59px;
  text-decoration: none;
  color: #fff;
  font-size: 15px;
  background-color: #435055;
}

.nav-menu a:hover {
  text-decoration: underline;
}

.serve {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  box-sizing: border-box;
  padding: 20px 50px 10px 50px;
  color: #0f246e;
}

.serve-item {
  display: flex;
  align-items: center;
}

.serve-item img {
  display: block;
  width: 40px;
}

.serve-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  margin-left: 10px;
}

.serve-content p {
  margin: 0;
  font-size: 12px;
}


/* banner_1 */
.banner_1 .banner-content {
  left: 8%;
  top: 50%;
  transform: translateY(-80%);
  display: flex;
  flex-direction: column;
  width: 38%;
}

.banner_1 h3 {
  width: 70%;
  margin: 0 0 20px 0;
  letter-spacing: 1px;
  line-height: 32px;
  font-size: 28px;
  font-weight: normal;
}

.banner_1 p {
  margin: 10px 0 0 0;
  line-height: 24px;
  font-size: 17px;
}

/* exploded-view */
.exploded-view {
  display: flex;
  flex-direction: row;
}

.view-left {
  width: 55%;
}

.view-left img {
  display: block;
  width: 100%;
}

.view-right {
  display: flex;
  width: 45%;
  background-color: #f4f5f6;
  overflow: hidden;
}

.view-content {
  display: flex;
  flex-direction: column;
  width: 80%;
  margin: auto;
  color: #333;
}

.view-content h3 {
  margin: 0;
  line-height: 34px;
  font-size: 28px;
  font-weight: normal;
}

.view-desc-list {
  margin: 5% 0 0 0;
  padding-left: 20px;
}

.view-desc-list li {
  line-height: 32px;
  font-size: 16px;
}


/* banner_2 */
.banner_2 .banner-content {
  left: 8%;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  width: 25%;
}

.banner_2 h3 {
  margin: 0 0 20px 0;
  letter-spacing: 1px;
  line-height: 32px;
  font-size: 28px;
  font-weight: normal;
}

.banner_2 p {
  margin: 10px 0 0 0;
  line-height: 24px;
  font-size: 17px;
}

.banner_2 .title {
  position: absolute;
  top: 80%;
  display: inline-block;
  border-bottom: 1px solid rgba(255, 255, 255, 0.8);
  padding-bottom: 5px;
  font-size: 16px;
  color: #fff;
  opacity: .8;
}

.banner_2 .title:nth-of-type(1) {
  left: 40.5%;
}

.banner_2 .title:nth-of-type(2) {
  left: 66.5%;
}


/* banner_3 */
.banner_3 .banner-content {
  left: 8%;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  width: 30%;
}

.banner_3 h3 {
  margin: 0 0 20px 0;
  letter-spacing: 1px;
  line-height: 32px;
  font-size: 28px;
  font-weight: normal;
}

.banner_3 p {
  margin: 10px 0 0 0;
  line-height: 24px;
  font-size: 17px;
}


/* feature */
.feature {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: space-between;
  box-sizing: border-box;
  padding: 40px;
}

.feature img {
  display: block;
  width: 100%;
}

.feature-header {
  position: relative;
  margin-bottom: 40px;
  padding-right: 0;
} 

.feature-header .feature-content {
  position: absolute;
  top: 50%;
  left: 6%;
  transform: translateY(-50%);
  width: 30%;
  color: #333;
}

.feature-header .feature-content h3 {
  margin: 0 0 70px 0;
  line-height: 32px;
  font-weight: normal;
  font-size: 28px;
}

.feature-header .feature-content p {
  position: relative;
  margin: 0;
  line-height: 24px;
  font-weight: normal;
  font-size: 16px;
}

.feature-header .feature-content p::before {
  content: "";
  position: absolute;
  top: -20px;
  left: 0;
  display: inline-block;
  width: 40px;
  height: 2px;
  background-color: #333;
}

.feature-item {
  width: calc(100% / 2);
  box-sizing: border-box;
  padding: 0 60px;
}

.feature-item .feature-content {
  padding: 60px 0 100px 0;
  color: #333;
}

.feature-item .feature-content h3 {
  margin: 0 0 70px 0;
  line-height: 32px;
  font-weight: normal;
  font-size: 28px;
}

.feature-item .feature-content p {
  position: relative;
  margin: 0;
  line-height: 24px;
  font-weight: normal;
  font-size: 16px;
}

.feature-item .feature-content p::before {
  content: "";
  position: absolute;
  top: -20px;
  left: 0;
  display: inline-block;
  width: 40px;
  height: 2px;
  background-color: #333;
}

/* size */
.size {
  box-sizing: border-box;
  padding: 0 100px;
}

.size,
.size img {
  display: block;
  width: 100%;
}


/* info */
.info {
  box-sizing: border-box;
  margin-top: 80px;
  padding: 0 100px;
  color: #333;
}

.info h3 {
  margin: 0 0 40px 0;
  font-size: 28px;
  line-height: 32px;
  font-weight: normal;
}

.info .flex-box {
  display: flex;
  flex-direction: row;
  padding-bottom: 20px;
  border-bottom: 1px solid #333;
}

.info-list {
  margin: 0;
  box-sizing: border-box;
  padding-left: 20px;
}

.info-list:nth-of-type(1) {
  width: 40%;
}

.info-list:nth-of-type(2) {
  width: 60%;
}

.info-list li {
  line-height: 32px;
  font-size: 16px;
}


/* install */
.install {
  box-sizing: border-box;
  margin-top: 80px;
  padding: 0 100px;
  color: #333;
}

.install h3 {
  margin: 0 0 40px 0;
  font-size: 28px;
  line-height: 32px;
  font-weight: normal;
}

.install img {
  display: block;
  width: 100%;
}


/* selling */
.selling {
  width: 100%;
}

.selling-title {
  display: inline-block;
  padding: 15px 0 15px 2%;
  width: 390px;
  background-color: #435055;
  border-radius: 0 10px 10px 0;
  font-size: 24px;
  line-height: 24px;
  color: #fff;
}

.selling-title span {
  color: #f1ce65;
}

.selling-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin-top: 20px;
}

.selling-item {
  width: calc(100% / 5 - 10px);
  margin-top: 10px;
  border-radius: 10px;
  overflow: hidden;
}

.selling-item img {
  display: block;
  width: 100%;
  transition: transform .2s;
}

.selling-item:hover img {
  transform: scale(1.1);
}


@media screen and (max-width: 768px) {
  .nav-menu {
    position: relative;
    border-radius: 0;
    padding: 0;
  }

  .nav-menu label {
    display: block;
  }

  .nav-menu input:checked + .menu-list {
    opacity: 1;
    pointer-events: visible;
    transform: translateY(0);
  }  

  .menu-list {
    z-index: 1;
    position: absolute;
    left: 0;
    top: 49px;
    width: 100%;
    flex-direction: column;
    background-color: #fff;
    opacity: 0;
    pointer-events: none;
    transform: translateY(30px);
    transition: all .2s;
  }

  .menu-list a {
    width: 100%;
    height: 49px;
    line-height: 49px;
    margin-top: 5px;
    text-align: center;
  }

  /* banner_1 */
  .banner_1 .banner-content {
    left: 6%;
    width: 50%;
    transform: translateY(-50%);
  }

  .banner_1 h3 {
    width: 100%;
    margin: 0%;
    line-height: 24px;
    font-size: 18px;
  }

  .banner_1 p {
    margin: 10px 0 0 0;
    line-height: 16px;
    font-size: 12px;
  }

  /* exploded-view */
  .exploded-view {
    flex-direction: column;
  }

  .view-left, .view-right {
    width: 100%;
  }

  .view-content {
    width: 90%;
    box-sizing: border-box;
    padding: 20px 0;
  }
  
  .view-content h3 {
    line-height: 28px;
    font-size: 24px;
  }

  .view-desc-list li {
    line-height: 24px;
    font-size: 14px;
  }

  /* banner_2 */
  .banner_2 .banner-content {
    left: 4%;
    width: 30%;
    transform: translateY(-50%);
  }

  .banner_2 h3 {
    margin: 0%;
    line-height: 24px;
    font-size: 18px;
  }

  .banner_2 p {
    display: none;
  }

  .banner_2 .title {
    font-size: 16px;
    transform: scale(.5);
    transform-origin: top left;
  }

  /* banner_3 */
  .banner_3 .banner-content {
    left: 4%;
    width: 50%;
    transform: translateY(-50%);
  }

  .banner_3 h3 {
    width: 100%;
    margin: 0%;
    line-height: 24px;
    font-size: 18px;
  }

  .banner_3 p {
    margin: 10px 0 0 0;
    line-height: 16px;
    font-size: 12px;
  }

  /* feature */
  .feature {
    padding: 10px;
  }

  .feature-header .feature-content {
    /* position: absolute; */
    top: 50%;
    left: 2%;
    transform: translateY(-50%);
    width: 40%;
    /* color: #333; */
  }
  
  .feature-header .feature-content h3 {
    margin: 0 0 20px 0;
    line-height: 24px;
    font-size: 18px;
  }
  
  .feature-header .feature-content p {
    position: relative;
    margin: 0;
    line-height: 16px;
    font-weight: normal;
    font-size: 12px;
  }

  .feature-header .feature-content p::before {
    top: -5px;
  }

  .feature-item {
    width: calc(100% / 2 - 10px);
    padding: 0;
  }

  .feature-item .feature-content {
    padding: 30px 0 40px 0;
  }

  .feature-item .feature-content h3 {
    margin: 0 0 30px 0;
    word-break: break-all;
    line-height: 24px;
    font-size: 18px;
  }

  .feature-item .feature-content p {
    line-height: 18px;
    font-size: 12px;
  }

  .feature-item .feature-content p::before {
    top: -10px;
  }

  /* size */
  .size,
  .info,
  .install {
    padding: 0 10px;
  }

  .info,
  .install {
    margin-top: 40px;
  }

  .info .flex-box {
    flex-direction: column;
  }

  .info-list {
    width: 100% !important;
  }

  .info h3,
  .install h3 {
    margin: 0 0 10px 0;
    font-size: 18px;
    line-height: 24px;
  }

  .info-list li {
    font-size: 12px;
    line-height: 24px;
  }


  /* serve */
  .serve {
    padding: 10px 0 0 10px;
  }

  .serve-item {
    justify-content: flex-start;
    width: 50%;
    margin: 20px 0;
  }

  .serve-item img {
    width: 30px;
    height: 30px;
  }

  .selling-title {
    padding: 10px 0 10px 2%;
    width: 250px;
    font-size: 18px;
  }

  .selling-list {
    margin-top: 10px;
  }

  .selling-item {
    width: calc(100% / 2 - 10px);
  }
}