* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}
a {
  text-decoration: none;
}

body {
  min-height: 100vh;
  min-width: 375px;
  background-color: #f4f4f9;
  color: #333;
}

.git-hub {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  width: 150px;
  height: 150px;
  position: fixed;
  top: 0;
  right: 0;
  z-index: 999;
  background-color: #fff;
  transform: translate(80px, -80px) rotateZ(45deg);
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

.git-hub img {
  width: 50px;
  height: 50px;
}

div.header {
  height: 100vh;
  background: linear-gradient(to right bottom, #f00a, #ff05);
  position: relative;
  padding: 90px 0 60px;
  background-repeat: no-repeat;
  background-position: top left;
  background-size: auto 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
p.header-title {
  text-align: center;
  font-size: 32px;
  font-weight: bold;
  color: #fff;
  text-shadow: 2px 2px 10px #a008;
}
p.header-text {
  text-align: center;
  margin-top: 20px;
  font-size: 20px;
  color: #fff;
}
div.start-button {
  width: 150px;
  height: 32px;
  margin-top: 20px;
  background: #f005;
  color: #fff;
  font-size: 14px;
  font-weight: bold;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
  cursor: pointer;
}
div.start-button:active {
  box-shadow: inherit;
}

section.section {
  width: 100%;
  margin: 0 auto;
  max-width: 1200px;
  padding: 60px 20px 20px;
}

section.section .data-list {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-start;
  gap: 15px;
}
section.section .data-list .data-item {
  width: 450px;
  height: 180px;
  background-color: #fff;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  cursor: pointer;
  color: #333;
}

section.section .data-list .data-item:hover {
  /* 执行抖动动画 */
  animation: shake 0.1s 3;
}

section.section .data-list .data-item .item-title {
  font-size: 20px;
  font-weight: bold;
  display: flex;
  align-items: center;
  justify-content: center;
}
section.section .data-list .data-item .item-title .icon {
  height: 30px;
  vertical-align: middle;
  margin-right: 10px;
}

section.section .data-list .data-item .item-desc {
  line-height: 24px;
  font-size: 14px;
  margin-top: 10px;
}

div.skills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  padding: 20px;
  gap: 20px;
}
div.skills .skill-tag {
  background-color: #333;
  color: white;
  padding: 10px 20px;
  border-radius: 5px;
}

footer.footer {
  background-color: #444;
  color: #ddd;
}
footer.footer a {
  color: #ddd;
}
footer.footer .footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  text-align: center;
  font-size: 14px;
}
footer.footer .footer-content .qrcode {
  margin: 10px 0;
}
footer.footer .footer-content img {
  width: 120px;
}

/* 抖动动画 */
@keyframes shake {
  0% {
    transform: translate(0, 0);
  }
  10% {
    transform: translate(3px, 3px);
  }
  20% {
    transform: translate(0, 0);
  }
  30% {
    transform: translate(-3px, -3px);
  }
  40% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(3px, -3px);
  }
  60% {
    transform: translate(0, 0);
  }
  70% {
    transform: translate(-3px, 3px);
  }
  80% {
    transform: translate(0, 0);
  }
  90% {
    transform: translate(3px, 3px);
  }
  100% {
    transform: translate(0, 0);
  }
}