.products {
  padding: 30px 0;
}

.products .title {
  margin: 0 0 15px;
}

.products .sub-info {
  max-height: 58px;
  line-height: 1.8;
  margin-bottom: 20px;
}


/* 左边 */
.products .lt-nav {
  margin-bottom: 20px;
}

.products form {
  margin-bottom: 15px;
}

.products .form-wrap {
  position: relative;
}

.products .form-control {
  height: 45px;
  padding-right: 70px;
  box-shadow: none;
  border-radius: 35px;
}

.products .form-wrap button {
  position: absolute;
  right: 15px;
  top: 0;
  width: 50px;
  height: 100%;
  border: none;
  background: none;
}

.products .form-wrap i {
  font-size: 24px;
}

.products .top-group {
  border: 1px solid #333333;
}

.products .button {
  font-size: 20px;
  margin-top: 10px;
  margin-left: 15px;
  margin-bottom: 10px;
  border: none;
  background: none;
}

.products .nav-title {
  padding: 7px 15px;
  color: #fff;
  background: #333;
}

.products .pdt-nav>li:not(:last-child) {
  margin-bottom: 5px;
}

.products .pdt-nav {
  padding: 0 15px 20px;
}

.products .nav-open {
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: color .3s;
}

.products .nav-open.drop,
.products .nav-open:hover {
  color: var(--style-color);
}

.products .nav-open a {
  display: block;
  width: 100%;
  color: inherit;
  padding: 5px 24px;
}

.products .nav-open i {
  min-width: 30px;
  margin-left: 10px;
  font-size: inherit;
  text-align: center;
  cursor: pointer;
  transition-property: color, transform;
  transition-duration: .3s;
}

.products .nav-open.drop i {
  transform: rotate(90deg);
}

.products .first-btn {
  font-size: 20px;
  border-bottom: 1px solid #999999;
}

.products .first-btn a {
  padding: 8px 24px 8px 0;
}

.products .child-list {
  display: none;
}

.products .pdt-nav>li>.child-list {
  padding: 10px 0 5px;
}

.products .child-list .child-list .nav-open {
  font-size: 16px;
}

.products .child-list .child-list .nav-open a {
  padding-left: 36px;
}


/* 右边 */
.products .item {
  padding: 15px;
  border: 1px solid #707070;
}

.products .item:not(:last-child) {
  margin-bottom: 35px;
}

.products .pic {
  width: 100%;
  aspect-ratio: 316 / 316;
}

.products .pic img {
  width: 100%;
}

.products .info-group {
  margin-top: 20px;
}

.products .tit {
  margin: 0 0 15px;
  text-align: left;
}

.products .btn {
  width: 150px;
  color: #fff;
  padding: 4px 10px;
  background: var(--style-color);
}

@media (min-width: 640px) {
  .products .item {
    display: flex;
  }

  .products .pic {
    flex: 0 0 32%;
  }

  .products .info-group {
    flex: 1;
    margin-left: 30px;
    align-self: center;
    margin-top: 0;
  }
}

@media (min-width: 768px) {
  .products .sub-info {
    margin-bottom: 30px;
  }

  .products .button {
    display: none;
  }

  .products .pdt-nav {
    padding-top: 10px;
    padding-bottom: 34px;
  }

  .products .first-btn a {
    padding-top: 13px;
    padding-bottom: 13px;
  }
}

@media (min-width: 1200px) {
  .products {
    padding: 60px 0;
  }

  .products .sub-info {
    margin-bottom: 40px;
  }

  .products .lt-nav {
    margin-bottom: 0;
  }

  .products .pdt-group {
    display: flex;
  }

  .products .lt-nav {
    width: 400px;
  }

  .products .rt-content {
    flex: 1;
    padding-left: 30px;
  }

  .products form {
    margin-bottom: 35px;
  }

  .products .form-control {
    height: 70px;
    padding-left: 20px;
    padding-right: 80px;
  }

  .products .form-wrap button {
    right: 25px;
  }

  .products .form-wrap i {
    font-size: 30px;
  }

  .products .nav-title {
    padding: 15px 30px;
  }

  .products .pdt-nav {
    padding-left: 30px;
    padding-right: 30px;
  }

  .products .nav-open {
    font-size: 20px;
  }

  .products .child-list .child-list .nav-open {
    font-size: 18px;
  }

  .products .first-btn {
    font-size: 26px;
  }

  .products .item {
    padding: 23px 30px;
  }

  .products .info-group {
    margin-left: 60px;
  }

  .products .tit {
    margin-bottom: 29px;
  }

  .products .btn {
    width: 167px;
    padding: 8px 15px;
  }
}

@media (min-width: 1640px) {
  .products .sub-info {
    margin-bottom: 68px;
  }

  .products .lt-nav {
    width: 449px;
  }

  .products .rt-content {
    padding-left: 60px;
  }

  .products .item {
    padding-left: 50px;
    padding-right: 50px;
  }
}


/* optimization */
.optimization {
  padding-bottom: 30px;
}

.optimization .title {
  margin-top: 0;
}

.optimization .block {
  display: block;
  position: relative;
  cursor: default;
}

.optimization .block::after {
  content: '';
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  z-index: 2;
  background-color: rgba(0, 13, 33, 0.6);
}

.optimization .pic {
  width: 100%;
  position: relative;
  overflow: hidden;
}

.optimization .pic div {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.optimization .pic img {
  max-width: 100%;
  max-height: 100%;
  -webkit-transition: all .7s;
  -moz-transition: all .7s;
  -o-transition: all .7s;
  transition: all .7s;
}

.optimization .block:hover .pic img {
  -webkit-transform: scale(1.1);
  -moz-transform: scale(1.1);
  -o-transform: scale(1.1);
  transform: scale(1.1);
}

.optimization .info-group {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  z-index: 5;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.optimization .tit {
  font-size: 20px;
  font-weight: bold;
  color: #fff;
  margin: 0;
  text-align: left;
}

.optimization .info-desc {
  font-size: 16px;
  line-height: 1.8;
  height: 144px;
  color: #fff;
  margin-top: 0.625rem;
}

.optimization .more {
  min-width: 130px;
  height: 40px;
  line-height: 30px;
  background-color: var(--style-color);
  color: #fff;
  font-size: 16px;
  font-weight: bold;
  display: inline-block;
  padding: 0.375rem 1rem;
  margin-top: 1.25rem;
  margin-left: 1.25rem;
  text-align: center;
  cursor: pointer;
  position: relative;
  z-index: 1;
}

.optimization .more::after {
  content: '';
  height: 100%;
  background-color: var(--style-color);
  position: absolute;
  left: -12px;
  right: -12px;
  top: 0;
  z-index: -1;
  transform: skewX(-25deg);
}

@media(min-width:768px) {
  .optimization .info-desc {
    height: 115px;
  }
}

@media(min-width:1200px) {
  .optimization {
    padding-bottom: 60px;
  }

  .optimization .info-group {
    padding: 1.25rem 3.125rem;
  }

  .optimization .tit {
    font-size: 24px;
    transition: all .4s cubic-bezier(0.43, 0.05, 0.17, 1) 0s;
  }

  .optimization .info-desc {
    font-size: 16px;
    display: block;
  }

  .optimization .more {
    min-width: 176px;
  }

  .optimization .info-group {
    justify-content: unset;
    padding-top: 2.5rem;
  }

  .optimization .info-desc {
    height: 144px;
  }
}

@media(min-width:1440px) {
  .optimization .info-group {
    padding-top: 5rem;
  }

  .optimization .info-desc {
    height: 172px;
  }
}

@media(max-width:768px) {
  .optimization .pic img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
}