.page404 section {
  width: fit-content;
  margin: 0 auto;
  text-align: center;
  line-height: 1.2;
  font-family: 'Raleway', 'Noto Sans TC', Arial, '微軟正黑體', 'Microsoft JhengHei', '蘋果儷中黑', 'Apple LiGothic Medium', sans-serif;
  padding: 0 20px 50px;
}
.page404 .title404 {
  font-size: 17.5rem;
  font-weight: 800;
  color: #fff;
}
@media screen and (max-width: 767px) {
  .page404 .title404 {
    font-size: 6rem;
  }
}
.page404 .sub {
  color: #fff;
  background: #81172b;
  padding: 10px;
  font-size: 2rem;
  margin-bottom: 50px;
  font-weight: 600;
}
@media screen and (max-width: 767px) {
  .page404 .sub {
    margin-bottom: 30px;
    font-size: 1.2rem;
  }
}

.page404 .homeBtn {
  display: block;
  width: fit-content;
  margin: 0 auto;
  padding: 15px 40px;
  font-size: 1.25rem;
  font-weight: 500;
  border-radius: 50px;
  color: #fff;
  background: #e06d11;
  position: relative;
  isolation: isolate;
  overflow: hidden;
}
@media screen and (max-width: 767px) {
  .page404 .homeBtn {
    font-size: 1rem;
  }
}

.page404 .homeBtn::before {
  content: '';
  position: absolute;
  width: 0;
  right: 0;
  top: 0;
  bottom: 0;
  display: block;
  background: #81172b;
  z-index: -1;
  transition: all 0.3s ease;
}

.page404 .homeBtn:hover::before {
  width: 100%;
  left: 0;
}