@charset "UTF-8";
* {
  font-family: 微軟正黑體;
  position: relative;
}

h2 {
  font-size: 20px;
  margin-bottom: 20px;
}

p {
  font-size: 16px;
}

h3 {
  font-size: 24px;
}

.navbar {
  width: 100%;
  height: 70px;
  margin-bottom: 0px;
  z-index: 1000;
  position: fixed;
  top: 0;
}
@media only screen and (max-width: 768px) {
  .navbar ul {
    margin: 0px 30px;
  }
}
.navbar ul li {
  width: 120px;
}
.navbar ul li a {
  font-size: 20px;
}
@media only screen and (min-width: 768px) {
  .navbar ul li a {
    text-align: center;
  }
}

.box_padding {
  padding: 20px;
}

.box_padding_0 {
  padding: 0px;
}

.box_margin_0 {
  margin: 0px;
}

.box_margin_top_20 {
  margin-top: 20px;
}

.box_margin_top_10 {
  margin-top: 10px;
}

.box_margin_bottom_20 {
  margin-bottom: 20px;
}

.box_margin_bottom_40 {
  margin-bottom: 40px;
}

.box_margin_top_40 {
  margin-top: 40px;
}

.center {
  margin-left: auto;
  margin-right: auto;
  display: -webkit-flex;
  display: flex;
  -webkit-align-items: center;
  align-items: center;
  -webkit-justify-content: center;
  justify-content: center;
}

.header--fixed {
  position: fixed;
  z-index: 100;
  right: 0;
  left: 0;
  top: 0;
}

.headroom {
  height: 70px;
  background-color: black;
  will-change: transform;
  transition: transform 200ms linear;
}

.headroom--pinned {
  transform: translateY(0%);
}

.headroom--unpinned {
  transform: translateY(-100%);
}

.top_logo {
  z-index: 1000;
  margin-top: 10px;
  margin-left: 10px;
  height: 50px;
}

.draw_board {
  width: 100%;
  height: 100%;
  margin: 0px 0px 20px 0px;
}

.graph_set {
  margin-top: 130px;
}

.blank1 {
  height: 365px;
}

@media only screen and (min-width: 1200px) {
  .collection_box {
    width: 80%;
    height: 320px;
    margin-right: auto;
    margin-left: auto;
  }
}
@media only screen and (max-width: 1200px) {
  .collection_box {
    width: 80%;
    height: 320px;
    margin-right: auto;
    margin-left: auto;
  }
}
@media only screen and (max-width: 992px) {
  .collection_box {
    width: 80%;
    height: 160px;
    margin-right: auto;
    margin-left: auto;
  }
}
@media only screen and (max-width: 768px) {
  .collection_box {
    width: 80%;
    height: 200px;
    overflow: hidden;
    margin-right: auto;
    margin-left: auto;
  }
}
@media only screen and (max-width: 544px) {
  .collection_box {
    width: auto;
    height: 160px;
    overflow: hidden;
    margin-right: auto;
    margin-left: auto;
  }
}
.blank2 {
  height: 1135px;
}

.footer {
  width: 100%;
  height: 100%;
}
.footer ul {
  list-style: none;
  margin: 0px 0px 20px 0px;
  padding: 0px;
}
.footer ul li {
  box-sizing: border-box;
  width: 100px;
  display: inline-block;
}
.footer ul a {
  color: black;
  text-decoration: none;
  font-size: 18px;
}
.footer p {
  margin-bottom: 0px;
  line-height: 40px;
  font-size: 18px;
}

.earth {
  padding: 25px;
}