@import url("https://fonts.googleapis.com/css?family=Noto+Sans+TC:100,300,400,500,700&display=swap&subset=chinese-traditional");
@import url("https://fonts.googleapis.com/css?family=Noto+Serif+TC:300,400,500,600,700,900&display=swap&subset=chinese-traditional");
@import url("https://fonts.googleapis.com/css2?family=Outfit:wght@400;500&display=swap");
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: url(../images/bg.jpg) repeat left top #c8585e;
  background-size: 10%;
  font-family: "Outfit", "Noto Sans TC", "Helvetica Neue", "Arial", sans-serif;
}

a {
  outline: none;
  text-decoration: none;
}

img {
  width: 100%;
  height: 100%;
}

@keyframes pulse {
  0% {
    transform: scale(0.95);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 15px rgba(255, 255, 255, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0);
  }
}
.main_page {
  position: relative;
}

aside {
  max-width: 100%;
  width: 100%;
}

.btn {
  display: flex;
  flex-direction: row;
  width: fit-content;
  margin: auto;
}
.btn a {
  background-image: linear-gradient(to right, #af75a2 0%, #746aa4 40%, #6587a8 100%);
  border-radius: 30px;
  padding: 0.8em 1em 0.8em 3em;
  cursor: pointer;
  font-size: 1.1em;
  letter-spacing: 0.05em;
  position: absolute;
  display: block;
  color: #fff;
  left: 3%;
  top: 1%;
}
.btn a::before {
  content: "";
  font-weight: 800;
  width: 40px;
  height: 40px;
  text-align: center;
  line-height: 40px;
  border-radius: 50%;
  background-image: url(../images/arrow-pointing-to-left.png);
  background-repeat: no-repeat;
  background-position: center;
  background-color: #fff;
  color: #706da5;
  position: absolute;
  left: 6px;
  top: 6px;
  z-index: 2;
  transition: 0.2s;
  transform: rotate(180deg);
  transition: 0.2s;
  animation: pulse 1.5s infinite;
  box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.7);
}
@media screen and (max-width: 1024px) {
  .btn a {
    padding: 0.8em 1em 0.8em 3em;
    font-size: 0.9em;
  }
  .btn a::before {
    width: 32px;
    height: 32px;
    line-height: 32px;
  }
}
@media screen and (max-width: 750px) {
  .btn a {
    left: 1%;
  }
}