html {
  height: 100%;
}
body {
  position: relative;
  height: 100%;
  background: linear-gradient(
    #242625 25%,
    #303133 50%,
    #303133 50%,
    #242625 100%
  );
  color: #a4a8a4;
  font-size: 14px;
  font-family: "Inter", sans-serif;
}
a {
  transition: all 0.3s;
  color: #b1b4b1;
}
a:hover {
  color: #cbcdcb;
}
strong {
  font-weight: 500;
  color: #00acc1;
}
.container {
  max-width: 650px;
  margin: 0 auto;
  width: 100%;
}
.content {
  position: absolute;
  width: 100%;
}
.content .header {
  padding: 3.5rem 0 0.3rem;
  text-align: center;
  position: relative;
  z-index: 1;
  margin: 0 2rem;
}
.content .header p {
  font-size: 1.3rem;
  font-weight: 500;
  color: #e5e5e5;
}
.content .main {
  position: relative;
  margin: 0 1rem;
  z-index: 1;
  background: #1e201f;
  border-radius: 0.7rem;
  padding: 1.5rem;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.1),
    inset 0 3px 3px rgba(0, 0, 0, 0.5);
  margin-bottom: 1rem;
}
.content .main ul.m-list {
  margin: 0;
  padding: 0;
  list-style: none;
  margin: 1rem 0;
}
.content .main ul.m-list li {
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  background: #242625;
  padding: 0.5rem 0.8rem;
  margin: 0.3rem 0;
  border-radius: 0.4rem;
  border: 1px solid #3e403f;
  color: #777b77;
  text-decoration: none;
  transition: border-color 0.3s, background 0.3s;
}
.content .main ul.m-list li span:first-child {
  font-weight: 600;
  color: #e5e5e5;
}
.content .main ul.m-list li span:last-child {
  display: inline-block;
  align-items: center;
  transition: color 0.3s;
}
.content .main ul.m-list li span:last-child:before {
  content: " ";
  display: inline-block;
  background: #00acc1;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  vertical-align: middle;
  margin-right: 0.3rem;
}
.content .main ul.m-list li:hover {
  background: #003a42;
  border-color: #00acc1;
}
.content .main ul.m-list li:hover span:last-child {
  color: #e5e5e5;
}
.content .main .notice {
  background: #131514;
  padding: 0.9rem 1rem 0.4rem;
  border-radius: 0.5rem;
  display: flex;
}
.content .main .notice .start {
  display: flex;
  margin-right: 0.5rem;
}
.content .main .notice .start i {
  font-size: 1.1rem;
  color: #e5e5e5;
}
.content .main .notice .stop {
  margin-top: 0.1rem;
  font-size: 0.8rem;
}
.content .main .notice .stop .heading {
  font-weight: 400;
  color: #e5e5e5;
  font-size: 0.9rem;
}
.content .main .notice .stop .twitter {
  background: #00acc1;
  border-radius: 0.2rem;
  padding: 0.2rem 0.5rem;
  display: inline-block;
  color: #131514;
  text-decoration: none;
  font-weight: 500;
  margin-top: 0.4rem;
  font-size: 0.8rem;
}
.content .main .notice .stop .twitter:hover {
  background: #00d9f4;
}
.content .main .faq {
  margin-top: 1.8rem;
}
.content .main .faq h3 {
  font-size: 0.9rem;
  font-weight: 500;
  color: #e5e5e5;
}
.content .footer {
  text-align: center;
  width: 100%;
  position: relative;
  z-index: 1;
  margin-bottom: 2rem;
}
.wrap {
  width: 100%;
  height: 100%;
  position: absolute;
  margin: 0 auto;
  perspective: 360px;
  perspective-origin: 50% 50%;
}
.top-plane,
.bottom-plane {
  width: 200%;
  height: 130%;
  position: absolute;
  bottom: -30%;
  left: -50%;
  background-image: -webkit-linear-gradient(#303133 2px, transparent 2px),
    -webkit-linear-gradient(left, #303133 2px, transparent 2px);
  background-size: 100px 100px, 100px 100px;
  background-position: -1px -1px, -1px -1px;
  transform: rotateX(85deg);
  animation: planeMoveTop 2s infinite linear;
  z-index: 0;
}
.bottom-plane {
  transform: rotateX(-85deg);
  top: -30%;
  animation: planeMoveBot 2s infinite linear;
}
@keyframes planeMoveTop {
  from {
    background-position: 0px -100px, 0px 0px;
  }
  to {
    background-position: 0px 0px, 100px 0px;
  }
}
@keyframes planeMoveBot {
  from {
    background-position: 0px 0px, 0px 0px;
  }
  to {
    background-position: 0px -100px, 100px 0px;
  }
}
@media (max-height: 350px) {
  .wrap {
    perspective: 210px;
  }
}