.section1 {
  overflow: hidden; }
  @media (max-width: 1023.98px) {
    .section1 {
      padding-top: 60px; } }

.category {
  width: 25%;
  background-color: #3f3f3f;
  -webkit-transition: 1s;
  -o-transition: 1s;
  transition: 1s; }
  .category::after {
    content: "";
    display: block;
    position: absolute;
    left: 16%;
    top: 30%;
    height: 2px;
    width: 8vw;
    background-color: #df003a;
    -webkit-transform-origin: 0 50%;
    -ms-transform-origin: 0 50%;
    transform-origin: 0 50%;
    opacity: 0;
    -webkit-transform: scaleX(0);
    -ms-transform: scaleX(0);
    transform: scaleX(0);
    -webkit-transition: 1s;
    -o-transition: 1s;
    transition: 1s; }
  .category + .category {
    border-left: 2px solid #444; }
  .category-wrapper {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    height: 100vh; }
  .category .num {
    position: absolute;
    top: 16%;
    left: 35%;
    -webkit-transition: 1s;
    -o-transition: 1s;
    transition: 1s; }
  .category .img {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0; }
    .category .img img {
      height: 100%;
      width: 100%;
      -o-object-fit: cover;
      object-fit: cover; }
  .category .title-wrapper {
    position: absolute;
    left: 0;
    right: 0;
    top: 88%;
    padding: 0 16%;
    -webkit-transform: translateY(-50%);
    -ms-transform: translateY(-50%);
    transform: translateY(-50%);
    -webkit-transition: 1s;
    -o-transition: 1s;
    transition: 1s; }
    .category .title-wrapper .content {
      color: rgba(0, 0, 0, 0.7);
      opacity: 0;
      -webkit-transition: 1s;
      -o-transition: 1s;
      transition: 1s; }
  .category .title-en {
    height: calc(120px + 3vh);
    -webkit-transition: 1s;
    -o-transition: 1s;
    transition: 1s; }
  .category .title-ch {
    margin-bottom: 3vh;
    -webkit-transition: 1s;
    -o-transition: 1s;
    transition: 1s; }
  @media (hover: hover) {
    .category:hover {
      background-color: #f6f6f6; }
      .category:hover::after {
        opacity: 1;
        -webkit-transform: scaleX(1);
        -ms-transform: scaleX(1);
        transform: scaleX(1); }
      .category:hover .num {
        color: #fff; }
      .category:hover .title-wrapper {
        -webkit-transform: translateY(calc(-50% - 6vh));
        -ms-transform: translateY(calc(-50% - 6vh));
        transform: translateY(calc(-50% - 6vh)); }
        .category:hover .title-wrapper .content {
          opacity: 1; }
      .category:hover .title-en {
        color: #fff; }
      .category:hover .title-ch {
        color: #000; } }
  @media (max-width: 1023.98px) {
    .category {
      display: block;
      padding-top: 80%;
      width: 100%; }
      .category + .category {
        border-left: none;
        border-top: 1px solid #a0a0a0; }
      .category-wrapper {
        height: initial;
        display: block; }
      .category .num {
        top: 0;
        left: 42%; }
      .category .title-wrapper {
        top: initial;
        -webkit-transform: initial;
        -ms-transform: initial;
        transform: initial;
        bottom: 15vw;
        padding: 0 30% 0 10%; }
      .category .title-en {
        height: initial;
        margin-bottom: 3.75vw; }
      .category .title-ch {
        margin-bottom: initial; } }