@charset "UTF-8";
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
  margin: 0;
  padding: 0;
  border: 0;
  font: inherit;
  font-size: 100%;
  vertical-align: baseline;
}

html {
  line-height: 1;
}

ol, ul {
  list-style: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

caption, th, td {
  text-align: left;
  font-weight: normal;
  vertical-align: middle;
}

q, blockquote {
  quotes: none;
}
q:before, q:after, blockquote:before, blockquote:after {
  content: "";
  content: none;
}

a img {
  border: none;
}

article, aside, details, figcaption, figure, footer, header, hgroup, main, menu, nav, section, summary {
  display: block;
}

html, body {
  font-family: "Arial",微軟正黑體;
  font-size: 100%;
  touch-action: manipulation;
}

body {
  margin: 0;
  background-color: #000;
}

iframe {
  border: none;
}

img {
  border: 0;
  outline: none;
  display: inline-block;
}

a {
  cursor: pointer;
  display: inline-block;
  text-decoration: none;
}

* {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  max-height: 99999px;
}

button {
  font-family: "Arial",微軟正黑體;
}

.no-select {
  -webkit-user-select: none;
  /* Chrome all / Safari all */
  -moz-user-select: none;
  /* Firefox all */
  -ms-user-select: none;
  /* IE 10+ */
  user-select: none;
  /* Likely future */
}

b {
  font-weight: bold;
}

.section_bg {
  position: fixed;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background-repeat: no-repeat;
  background-size: cover;
}

.section_light {
  position: fixed;
  width: 100%;
  height: 100%;
  min-width: 1618px;
  min-height: 1080px;
  background-repeat: no-repeat;
  opacity: 0;
}
.section_light.left {
  background-position: bottom left;
  transform-origin: bottom left;
  background-image: url("../images/light_left.png");
  transform: rotate(-45deg);
}
.section_light.right {
  background-position: right bottom;
  transform-origin: bottom right;
  background-image: url("../images/light_right.png");
  transform: rotate(45deg);
}

.logo {
  position: fixed;
  background-repeat: no-repeat;
}
.logo img {
  max-height: 70px;
}

canvas {
  position: absolute;
  width: 100%;
  top: 0;
  left: 0;
}

header {
  position: fixed;
  width: 100%;
  top: 0px;
  left: 0px;
  z-index: 8;
  padding: 30px 30px;
}

.header_set {
  float: right;
  display: none;
}

.person {
  position: relative;
  display: inline-block;
  width: 24px;
  height: 24px;
  background-image: url(../images/icon_person.png);
  background-repeat: no-repeat;
  margin: 0px 5px;
}

.language {
  position: relative;
  display: inline-block;
  width: 24px;
  height: 24px;
  background-image: url(../images/icon_language.png);
  background-repeat: no-repeat;
  margin: 0px 5px;
}
.language.en {
  background-position: 0% 0%;
  animation: languageEN 1s ease-in-out;
}
.language.ch {
  background-position: 0% 100%;
  animation: languageCH 1s ease-in-out;
}

.btn_sound {
  position: fixed;
  width: 28px;
  height: 20px;
  margin: 0px 5px;
  z-index: 10;
  cursor: pointer;
}
.btn_sound .icon_play {
  position: relative;
  width: 28px;
  height: 28px;
  display: none;
}
.btn_sound .icon_play svg {
  top: -15px;
  position: absolute;
  width: 100%;
}
.btn_sound .icon_stop {
  background-image: url(../images/icon_sound.png);
  background-repeat: no-repeat;
  width: 28px;
  height: 28px;
  background-position: 0% 100%;
  background-position: center center;
  display: none;
}
.btn_sound.open .icon_play {
  display: inline-block;
}
.btn_sound.close .icon_stop {
  display: inline-block;
}

@keyframes languageEN {
  0% {
    background-position: 0% 100%;
  }
  50% {
    background-position: 0% 0%;
  }
}
@keyframes languageCH {
  0% {
    background-position: 0% 0%;
  }
  50% {
    background-position: 0% 100%;
  }
}
.hamburger {
  position: relative;
  font: inherit;
  display: inline-block;
  overflow: visible;
  float: right;
  padding: 0px;
  transition-timing-function: linear;
  transition-duration: .15s;
  transition-property: opacity, filter;
  text-transform: none;
  color: inherit;
  border: 0;
  background-color: transparent;
  margin-left: 5px;
}
.hamburger.active .hamburger_inner {
  transition-delay: .22s;
  background-color: transparent;
}
.hamburger.active .hamburger_inner:before {
  top: 8px;
  transition: top 0.1s cubic-bezier(0.33333, 0, 0.66667, 0.33333) 0.15s, transform 0.13s cubic-bezier(0.215, 0.61, 0.355, 1) 0.22s;
}

.hamburger_box {
  position: relative;
  display: inline-block;
  width: 21px;
  height: 24px;
}

.hamburger_inner {
  position: absolute;
  width: 21px;
  height: 3px;
  transition-timing-function: ease;
  transition-duration: .15s;
  transition-property: transform;
  background-color: #fff;
  top: 4px;
  transition: background-color 0s linear .13s;
}
.hamburger_inner:before {
  position: absolute;
  width: 21px;
  height: 3px;
  transition-timing-function: ease;
  transition-duration: .15s;
  transition-property: transform;
  background-color: #fff;
  display: block;
  content: "";
  top: 15px;
  transition: top 0.1s cubic-bezier(0.33333, 0.66667, 0.66667, 1) 0.2s, transform 0.13s cubic-bezier(0.55, 0.055, 0.675, 0.19);
}

.nav {
  position: fixed;
  top: 0;
  right: 0;
  height: 100vh;
  z-index: 6;
  display: none;
}
.nav:before {
  position: absolute;
  content: "";
  top: 0;
  right: 0;
  width: 0%;
  height: 100%;
  background: -moz-linear-gradient(left, transparent 0%, rgba(0, 0, 0, 0.39) 39%, black 99%, black 100%);
  /* FF3.6-15 */
  background: -webkit-linear-gradient(left, transparent 0%, rgba(0, 0, 0, 0.39) 39%, black 99%, black 100%);
  /* Chrome10-25,Safari5.1-6 */
  background: linear-gradient(to right, transparent 0%, rgba(0, 0, 0, 0.39) 39%, black 99%, black 100%);
  /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#00000000', endColorstr='#000000',GradientType=1 );
  /* IE6-9 */
}
.nav.active:before {
  animation: navMask 1s;
  width: 100%;
}

@keyframes navMask {
  0% {
    width: 0%;
  }
  100% {
    width: 100%;
  }
}
.nav_inner {
  position: absolute;
  padding-top: calc(10% + 50px);
  padding-bottom: calc(10% + 70px);
  top: 0px;
  right: 0px;
  color: #fff;
  width: 100%;
  height: 100%;
  align-content: center;
  align-items: center;
  display: flex;
  flex-direction: row-reverse;
}

.nav_content {
  position: relative;
}

.nav_btn {
  font-size: 1.3125rem;
  display: block;
  text-align: right;
  width: 100%;
  color: #fff;
  height: 60px;
  display: flex;
  align-items: center;
  flex-direction: row-reverse;
  cursor: none;
  /*chris*/
}
.nav_btn .point {
  position: relative;
  width: 20px;
  height: 20px;
  display: inline-block;
  margin: 0 3px;
}
.nav_btn .point:after {
  content: "";
  position: absolute;
  top: 20px;
  left: 10px;
  width: 1px;
  display: block;
  height: 40px;
  background-color: #fff;
  opacity: 0.4;
}
.nav_btn .round {
  position: absolute;
  top: 0px;
  left: 0px;
  width: 100%;
  height: 100%;
  border-radius: 20px;
  transition: all 0.35s;
}
.nav_btn .round:after {
  content: "";
  position: absolute;
  width: 1px;
  height: 20px;
  display: block;
  top: 0;
  left: 10px;
  background-color: #fff;
  opacity: 0.4;
}
.nav_btn .round:before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 6px;
  position: absolute;
  top: 50%;
  left: 50%;
  margin-top: -3px;
  margin-left: -3px;
  background-color: #fff;
}
.nav_btn .txt {
  position: relative;
  display: inline-block;
  padding: 5px 0;
  overflow: hidden;
  margin-right: 5px;
}
.nav_btn .txt:after {
  position: absolute;
  bottom: 0;
  right: 100%;
  width: 0%;
  height: 2px;
  content: "";
  background: -moz-linear-gradient(left, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.38) 38%, white 100%);
  /* FF3.6-15 */
  background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.38) 38%, white 100%);
  /* Chrome10-25,Safari5.1-6 */
  background: linear-gradient(to right, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.38) 38%, white 100%);
  /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#00ffffff', endColorstr='#ffffff',GradientType=1 );
  /* IE6-9 */
}
.nav_btn .txt:hover:after {
  right: 0%;
  width: 60%;
  animation: navbottom 1s;
}
.nav_btn:nth-last-child(1) .point:after {
  display: none;
}
.nav_btn:nth-last-child(1) .round:after {
  height: 10px;
}
.nav_btn:nth-child(1) .round:after {
  height: 10px;
  top: 10px;
}

.nav_bottom {
  display: none;
}

.element{
  max-height: 300px;
  max-width: 350px;
}


@keyframes navbottom {
  0% {
    right: 100%;
    width: 0%;
  }
  100% {
    right: 0%;
    width: 60%;
  }
}
@media (min-width: 1px) and (max-width: 767.98px) {
  header {
    padding: 30px 30px;
  }

  .logo {
    top: 40px;
    left: 40px;
  }

  .nav {
    width: 100%;
  }
  .nav.active {
    display: block;
  }

  .nav_inner {
    padding-right: 3%;
    padding-left: 3%;
  }

  .nav_btn .point {
    display: none;
  }

  .nav_bottom {
    position: absolute;
    right: 40px;
    bottom: 40px;
    padding-top: 15px;
    border-top: 1px solid #fff;
    display: inline-block;
  }

  .btn_sound {
    left: 40px;
    bottom: 40px;
  }

  .section_light {
    display: none;
  }
  .section_light.left {
    bottom: -50px;
    left: -50px;
  }
  .section_light.right {
    bottom: -50px;
    right: -50px;
  }
}
@media (min-width: 1px) and (max-width: 480px) {
  header {
    padding: 20px 20px;
  }

  .logo {
    top: 20px;
    left: 20px;
  }

  .btn_sound {
    left: 20px;
    bottom: 20px;
  }
}
@media (min-width: 768px) {
  header {
    padding: 40px 40px;
  }

  .header_set {
    display: inline-block;
  }

  .logo {
    top: 40px;
    left: 50px;
  }

  .nav {
    width: 100px;
    display: block;
  }
  .nav .txt {
    display: none;
  }
  .nav.active {
    width: 350px;
  }
  .nav.active .txt {
    display: block;
  }

  .nav_btn.active .round {
    z-index: 1;
    border: 1px solid #fff;
  }
  .nav_btn.active .round:after {
    display: none;
  }

  .nav_inner {
    padding-right: 40px;
    padding-left: 40px;
  }

  .btn_sound {
    left: 50px;
    bottom: 50px;
  }

  .section_light.left {
    bottom: -100px;
    left: -100px;
  }
  .section_light.right {
    bottom: -100px;
    right: -100px;
  }
}