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-size: 100%;
  font-weight: normal;
  vertical-align: baseline;
  text-decoration: none;
  font-family: "微軟正黑體", Arial, Helvetica, "Microsoft JhengHei", Sans-Serif;
  text-align: center;
}
.background {
  background-image: url("https://www.taiwan.net.tw/vegetarian/img/foreground_mobile.png"),
    url("https://www.taiwan.net.tw/vegetarian/img/background.jpg");
  background-repeat: no-repeat;
  background-position: center top, center;
  background-size: contain, cover;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  position: fixed;
  left: 0;
  top: 0;
}
.wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  max-width: 1024px;
  margin: auto;
}

.logo {
  position: absolute;
  left: 20px;
  top: 20px;
  z-index: 5;
  width: 160px;
  height: 60px;
  background-image: url(https://www.taiwan.net.tw/vegetarian/img/logo.svg);
  text-indent: -99999px;
}
.btn-row {
  position: relative;
  display: flex;
  width: 100%;
  flex-wrap: wrap;
  text-align: center;
}
.btn-col {
  width: 50%;
  flex: 0 0 50%;
  padding: 0 28px 20px;
  box-sizing: border-box;
}

.btn {
  position: relative;
  display: block;
  text-align: center;
  border: 2px solid;
  color: #000;
  background-color: #fff;
  height: 2rem;
  transition: 0.15s;
}

.btn > span {
  content: "";
  position: absolute;
  display: block;
  top: -2px;
  left: -2px;
  width: 100%;
  height: 100%;
  line-height: 2;
  font-size: 1rem;
  font-weight: bold;
  border: 2px solid;
  color: #000;
  background-color: #fff;
  z-index: -1;
  transition: transform 0.15s;
  transform: translate(-5px, -5px);
  z-index: 1;
  transition: 0.15s;
}

.btn:hover,
.btn:focus,
.btn:hover > span,
.btn:focus > span {
  background-color: #ffee00;
}
.btn:hover > span,
.btn:focus > span {
  transform: translate(0, 0);
}

.copyright {
  position: relative;
  padding: 10px 0 20px;
  width: 100%;
  bottom: 0;
  text-align: center;
  font-size: 1rem;
  box-sizing: border-box;
}

@media screen and (min-width: 768px) {
  .background {
    background-image: url("https://www.taiwan.net.tw/vegetarian/img/foreground_pc.png"),
      url("https://www.taiwan.net.tw/vegetarian/img/background.jpg");
    background-size: 1920px 880px, cover;
  }

  .btn-col {
    padding: 0 15px;
    width: 25%;
    flex: 0 0 25%;
  }
  .btn-row,.copyright {
    position: absolute;
  }
  .btn-row {
    bottom: 13%;
  }

  .btn {
    height: 2.5rem;
    font-size: 1.2rem;
  }
  .btn > span {
    line-height: 2.5;
  }
}

@media screen and (max-width: 767px) {
    .btn-row {
        margin-top: -100px;
        margin-bottom: 50px;
    }
    .wrapper::before {
        content: '';
        display: block;
        padding-bottom: 120%;
    }
}