body {
  margin: 0;
  padding: 0;
  font-family: "Noto Sans SC", serif;
  font-optical-sizing: auto;
  background-image: linear-gradient(rgba(0, 0, 0, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.04) 1px, transparent 1px);
  background-size: 20px 20px;
  overflow: hidden;
}

.logo {
  position: fixed;
  top: 40px;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: auto;
}

.logo img {
  width: 200px;
}

.loading-container {
  display: flex;
  width: 100%;
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  justify-content: center;
  align-items: center;
  text-align: center;
  background: #fff;
  z-index: 999;
}

.loading {
  display: flex;
  color: #fff;
  font-size: 2rem;
  text-transform: uppercase;
}

.loading span {
  padding: 0 20px;
  line-height: 200%;
  background: #eb6d00;
  animation: bulge 2s infinite;
}

@keyframes bulge {
  50% {
    box-shadow: 0 20px 0 #ffcea7;
    transform: translateY(-35px);
  }
}

.hidden {
  animation: fadeOut 1s forwards;
  z-index: -3;
}

@keyframes fadeOut {
  0% {
    opacity: 1;
  }

  100% {
    opacity: 0;
    display: none;
  }
}

.container {
  display: flex;
  height: 90vh;
  overflow: hidden;
}

.sidebar {
  width: 25%;
  position: relative;
  z-index: 900;
}

.sidebar ul {
  list-style-type: none;
  padding: 0;
  margin: 0;
  text-align: center;
  width: 100%;
}

.sidebar li {
  width: 100%;
  font-size: 16px;
  cursor: pointer;
  position: relative;
}

.sidebar li p,
.sidebar li.active p {
  display: inline-block;
  line-height: 1;
  margin: 0;
  font-weight: bold;
}

.sidebar li p {
  font-size: 16px;
  color: #eb6d00;
}

.sidebar li.active p {
  margin: 0;
  font-size: 7rem;
  color: #000;
}

.sidebar li.active p::before {
  content: "";
  position: absolute;
  width: 30px;
  height: 30px;
  background-color: #eb6d00;
  border-radius: 50%;
  bottom: 10px;
  z-index: -1;
}

.content {
  width: 70%;
  height: 100vh;
  flex: 1;
  display: flex;
  flex-wrap: wrap;
  justify-content: left;
  align-items: center;
  padding: 0 3rem;
  overflow: hidden;
  overflow-wrap: break-word;
}

.sub_content {
  width: 100%;
  align-self: center;
}

.sub_content img {
  width: 60%;
  opacity: 0.5;
  position: fixed;
  right: 0;
  top: 0;
  animation: moveImage 12s infinite alternate;
  z-index: -1;
}

@keyframes moveImage {
  0% {
    transform: translate(0, 0);
  }

  33% {
    transform: translate(5%, -5%);
  }

  66% {
    transform: translate(5%, 5%);
  }

  100% {
    transform: translate(0, 0);
  }
}

.sub_content h1 {
  font-size: 4rem;
  width: 12em;
  overflow-wrap: break-word;
  width: 100%;
}

.typing-text::after {
  content: "|";
  display: inline-block;
  animation: blink 1s infinite;
}

@keyframes blink {
  0% {
    opacity: 0;
  }

  50% {
    opacity: 1;
  }

  100% {
    opacity: 0;
  }
}

.sub_content h6 {
  font-size: 1.5rem;
  margin: 0;
}

#canvas {
  width: 100vw;
  height: 100vh;
  position: fixed;
  overflow: hidden;
  top: 0;
  left: 0;
  z-index: -2;
}

#canvas-main {
  width: 100vw;
  height: 100vh;
  position: absolute;
  top: 0;
  left: 0;
}

.blob {
  position: absolute;
  transition: all 0.5s ease-in-out;
}

.arrow-link {
  display: inline-block;
  border-radius: 30px;
  padding: 0.5rem 2rem;
  text-decoration: none;
  margin-top: 2rem;
  background-color: #333;
  color: #fff;
  border: 2px solid #333;
  transition: 0.5s;
  margin-right: 10px;
}

.arrow-link:hover {
  background-color: #fff;
  color: #333;
  border: 2px solid #333;
  transition: 0.5s;
  padding: 0.5rem 3rem;
}

.arrow-link:hover::after {
  content: "→";
  font-weight: bold;
  transition: 0.5s;
}

@media only screen and (min-width: 993px) and (max-width: 1200px) {
  /* 在笔记本和台式机下的样式 */
  .content {
    padding: 0 2.5rem;
  }

  .sub_content h1 {
    font-size: 3rem;
  }
}

@media only screen and (min-width: 377px) and (max-width: 992px) {
  /* 在平板设备下的样式 */
  .content {
    padding: 0 1.5rem;
    overflow: hidden;
  }

  .sub_content h1 {
    font-size: 2rem;
  }

  .sub_content img {
    width: 70%;
    top: 10%;
  }

  .arrow-link {
    padding: 0.5rem 0.8rem;
  }

  .loading {
    font-size: 1.5rem;
  }

  .loading span {
    padding: 0 10px;
  }
}

@media only screen and (max-width: 376px) {
  /* 在小屏幕设备下的样式 */
  .content {
    padding: 0 1rem;
  }

  .arrow-link {
    padding: 0.3rem 0.5rem;
  }

  .sub_content h1 {
    font-size: 2rem;
  }

  .sub_content img {
    width: 70%;
    top: 10%;
  }

  .loading {
    font-size: 1rem;
  }

  .loading span {
    padding: 0 10px;
  }
}