body {
  position: relative;
  padding: 300px 0 0;
}
@media (max-width: 700px) {
  body {
    padding: 200px 0 0;
  }
}

.mask {
  position: absolute;
  top: 50px;
  left: 0;
  width: 100%;
}
@media (max-width: 700px) {
  .mask {
    width: 250%;
    left: 50%;
    -webkit-transform: translateX(-50%);
            transform: translateX(-50%);
  }
}

.section-block {
  position: relative;
  border-radius: 10px;
}
.section-block.top {
  padding: 210px 0 0;
}
@media (max-width: 700px) {
  .section-block.top {
    padding: 150px 0 0;
  }
}
.section-block.main {
  width: 80%;
  margin: 0 auto 90px;
  padding: 0 0 50px;
}
@media (max-width: 1500px) {
  .section-block.main {
    width: 90%;
  }
}
@media (max-width: 700px) {
  .section-block.main {
    padding: 30px 0 90px;
  }
  .section-block.top {
    padding: 150px 0 0;
  }
}

.main-block {
  background: #fff;
}

.diamond-title-box {
  position: absolute;
  top: -110px;
  left: 50%;
  -webkit-transform: translatex(-50%);
          transform: translatex(-50%);
  z-index: 5;
}
@media (max-width: 1300px) {
  .diamond-title-box {
    top: -80px;
  }
}
.diamond-title-box .inner-box {
  position: relative;
}
.diamond-title-box .bg-block {
  width: 220px;
  height: 220px;
  background: #92403D;
  -webkit-transform: rotate(45deg);
          transform: rotate(45deg);
}
@media (max-width: 700px) {
  .diamond-title-box .bg-block {
    width: 164px;
    height: 164px;
  }
}
.diamond-title-box .text-box {
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
  color: #FFF;
  text-align: center;
}
.diamond-title-box .text-box p {
  line-height: 18px;
  font-size: 1.5rem;
  line-height: 32px;
}
@media (max-width: 700px) {
  .diamond-title-box .text-box p {
    font-size: 1.25rem;
    line-height: 28px;
  }
}
.diamond-title-box .text-box h5 {
  font-size: 3.75rem;
  line-height: 68px;
  line-height: 60px;
  margin-bottom: 10px;
  display: block;
  font-family: "Newsreader";
}
@media (max-width: 700px) {
  .diamond-title-box .text-box h5 {
    font-size: 3rem;
    line-height: 56px;
  }
}
.diamond-title-box .text-box a {
  font-size: 0.875rem;
  line-height: 22px;
  border: 1px solid #FFF;
  padding: 4px 10px;
  border-radius: 25px;
}
@media (max-width: 700px) {
  .diamond-title-box .text-box a {
    font-size: 0.75rem;
    line-height: 20px;
  }
}

.course-sort-block {
  text-align: center;
  margin-bottom: 70px;
}
@media (max-width: 700px) {
  .course-sort-block {
    margin-bottom: 30px;
  }
}
@media (max-width: 700px) {
  .course-sort-block.pc {
    display: none;
  }
}
.course-sort-block.mob {
  display: none;
  font-size: 0.875rem;
  line-height: 22px;
}
@media (max-width: 700px) {
  .course-sort-block.mob {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
  }
}
.course-sort-block.mob p {
  color: #92403D;
  margin-right: 10px;
}
.course-sort-block.mob select {
  background: #92403D;
  color: #FFF;
  width: 180px;
  padding: 5px;
  border-radius: 4px;
  outline: none;
  border: 0px;
  text-align: left;
}
.course-sort-block a {
  width: 160px;
  padding: 5px;
  margin: 0 10px;
  background: #fff;
  color: #92403D;
  display: inline-block;
  border: 1px solid #92403D;
  border-radius: 2px;
}
@media (max-width: 1000px) {
  .course-sort-block a {
    width: 110px;
    margin: 0 5px;
  }
}
.course-sort-block a.active {
  background: #92403D;
  color: white;
}

.course-info-block {
  width: 1200px;
  margin: 0 auto 65px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}
@media (max-width: 1000px) {
  .course-info-block {
    width: 70%;
    display: block;
  }
}
@media (max-width: 700px) {
  .course-info-block {
    width: 100%;
  }
}
.course-info-block .big-img {
  width: 40%;
  margin-right: 50px;
  min-width: 40%;
  max-width: 40%;
}
@media (max-width: 1000px) {
  .course-info-block .big-img {
    width: 100%;
    min-width: 100%;
    max-width: 100%;
    margin: 0 0 10px 0;
  }
}
.course-info-block .text-box {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-pack: end;
      -ms-flex-pack: end;
          justify-content: end;
}
.course-info-block .title {
  font-size: 2.25rem;
  line-height: 44px;
  color: #92403D;
  margin-bottom: 10px;
  padding-top: 20px;
  line-height: 45px;
}
@media (max-width: 1000px) {
  .course-info-block .title {
    padding-top: 10px;
  }
}
@media (max-width: 700px) {
  .course-info-block .title {
    font-size: 1.5rem;
    line-height: 32px;
    line-height: 35px;
  }
}
.course-info-block .note {
  margin-bottom: 40px;
  line-height: 20px;
}
.course-info-block .s-img {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
}
.course-info-block .s-img img {
  width: 30%;
}

.main-block {
  width: calc(100% - 140px);
  margin: 0 auto;
  background: #FFF;
  padding: 70px;
}
@media (max-width: 700px) {
  .main-block {
    padding: 40px 10px;
    width: calc(100% - 20px);
  }
}

.main-top-block {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  margin-bottom: 70px;
  font-family: "Newsreader";
}
@media (max-width: 700px) {
  .main-top-block {
    display: block;
    margin-bottom: 35px;
  }
}

.main-title {
  color: #872E38;
}
@media (max-width: 700px) {
  .main-title {
    margin-bottom: 10px;
  }
}
.main-title span {
  font-size: 3.75rem;
  line-height: 68px;
}
@media (max-width: 700px) {
  .main-title span {
    font-size: 2.75rem;
    line-height: 52px;
  }
}
.main-title p {
  font-size: 1.5rem;
  line-height: 32px;
}
@media (max-width: 700px) {
  .main-title p {
    font-size: 1.25rem;
    line-height: 28px;
  }
}

.main-search {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: end;
      -ms-flex-align: end;
          align-items: end;
}
.main-search input:not(.form-button) {
  background: #E6E6E6;
  width: 270px;
  padding: 5px 10px;
  margin-right: 10px;
  border: 0px;
  outline: 0px;
  height: 30px;
  border-radius: 4px;
}
@media (max-width: 700px) {
  .main-search input:not(.form-button) {
    width: 150px;
  }
}
.main-search:placeholder {
  color: #CCCCCC;
}
.main-search .is-submit {
  width: 60px;
  height: 30px;
  background: #92403D;
  position: relative;
  color: #fff;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  border-radius: 4px;
}
@media (max-width: 700px) {
  .main-search .is-submit {
    width: 80px;
  }
}
.main-search .is-submit input {
  position: absolute;
  top: 0;
  left: 0;
  cursor: pointer;
  opacity: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}
.main-search .is-clear-submti {
  height: 30px;
  padding: 0 5px;
  margin-left: 5px;
  background: #92403D;
  position: relative;
  color: #fff;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  border-radius: 4px;
  white-space: nowrap;
}
.main-search .is-clear-submti input {
  /*1027 修改*/
  position: absolute;
  top: 0;
  left: 0;
  cursor: pointer;
  opacity: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.product-title {
  background: #CCCCCC;
  padding: 2px 5px;
  text-align: center;
  margin-bottom: 30px;
  color: #4B4845;
  font-size: 0.875rem;
  line-height: 22px;
  width: 100%;
}

.product-list {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  margin-bottom: 60px;
}
@media (max-width: 700px) {
  .product-list {
    margin-bottom: 0px;
  }
}

.product-item {
  width: calc(20% - 10px);
  margin: 0 5px 30px;
}
@media (max-width: 1000px) {
  .product-item {
    width: calc(25% - 10px);
  }
}
@media (max-width: 700px) {
  .product-item {
    width: 100%;
  }
}
.product-item:last-child {
  margin-bottom: 0;
}
.product-item .item-top {
  margin-bottom: 10px;
  position: relative;
}
.product-item .img-box {
  border-radius: 6px;
  overflow: hidden;
}
.product-item .is-tag {
  position: absolute;
  bottom: 10px;
  right: -10px;
  font-size: 0.875rem;
  line-height: 22px;
  background: #872E38;
  border-radius: 4px;
  padding: 2px 6px;
  color: #FFF;
}
.product-item .text-box {
  color: #872E38;
  margin-bottom: 10px;
  font-size: 1.5rem;
  line-height: 32px;
}
@media (max-width: 700px) {
  .product-item .text-box {
    font-size: 1.25rem;
    line-height: 28px;
    /* text-align: center; */
  }
}
.product-item .detail-info {
  font-size: 0.875rem;
  line-height: 22px;
}
@media (max-width: 700px) {
  .product-item .detail-info {
    margin-bottom: 10px;
  }
}
.product-item .price-box {
  text-align: right;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  width: 100%;
  -webkit-box-pack: end;
      -ms-flex-pack: end;
          justify-content: end;
  -webkit-box-align: end;
      -ms-flex-align: end;
          align-items: end;
  font-family: "Lato", sans-serif;
}
.product-item .price-box span {
  color: #CCCCCC;
  font-size: 0.75rem;
  line-height: 20px;
  margin-right: 5px;
  text-decoration: line-through;
  display: block;
}
.product-item .price-box p {
  color: #872E38;
  font-size: 1.25rem;
  line-height: 28px;
}

.page-change-box {
  text-align: center;
}
@media (max-width: 700px) {
  .page-change-box {
    display: none;
  }
}
.page-change-box a {
  color: #CCCCCC;
  padding: 5px 0;
  margin: 0 10px;
  font-size: 0.875rem;
  line-height: 22px;
}
.page-change-box a.active {
  color: #872E38;
  border-bottom: 2px solid #872E38;
}

.product-item .img-box {
  overflow: hidden;
}

.product-item .img-box img {
  transition: transform 0.3s ease-in-out;
}

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