@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400&family=Noto+Serif+TC:wght@600&display=swap");
/* clearBoth */
/*===================
footer
===================*/
footer {
  font-size: 14px;
  background-color: #3c3c3c;
  color: #ffffff;
  text-align: center;
  position: relative;
  padding: 20px 0;
  z-index: 1; }

.cd-top {
  color: #fafafa;
  font-size: 1.2rem;
  display: block;
  width: 40px;
  height: 40px;
  line-height: 48px;
  text-align: center;
  position: fixed;
  bottom: 50px;
  right: 30px;
  box-shadow: 0 0 10px rgab(0, 0, 0, 0.05);
  overflow: hidden;
  visibility: hidden;
  opacity: 0;
  transition: all 0.3s;
  border-radius: 100%;
  z-index: 4; }
  .cd-top.cd-is-visible {
    visibility: visible;
    opacity: 1; }
  @media screen and (max-width: 414px) {
    .cd-top {
      right: 30px;
      bottom: 50px;
      width: 40px;
      height: 40px;
      line-height: 40px; } }

.back2top {
  width: 40px;
  height: 40px; }
  @media screen and (max-width: 414px) {
    .back2top {
      width: 40px;
      height: 40px;
      line-height: 40px; } }