html, body {
  padding: 0;
  margin: 0;
}

* {
  box-sizing: border-box;
}

.container {
  width: 1200px;
  margin: 0 auto;
  height: 100%;
}

.flex {
  display: flex;
}

.fld-col {
  flex-direction: column;
}

.ali-center {
  align-items: center;
}

.juc-center {
  justify-content: center;
}

.juc-sp {
  justify-content: space-between;
}


.header {
  height: 64px;
  position: fixed;
  z-index: 3;
  background-color: #f1f1f1;
  width: 100%;
  padding: 0 30px;
}

.logo-icon {
  width: 45px;
  object-fit: contain;
  margin-right: 12px;
}

.logo-text {
  font-size: 20px;
  color: #0548bc;
  font-weight: bold;
}

.header-empty {
  height: 64px;
  position: fixed;
  z-index: 1;
}

.part1 {
  height: 470px;
  width: 100%;
  background-color: #ffffff;
}

.introduce {
  width: 600px;
}

.introduce-title {
  font-size: 42px;
  color: #181818;
  margin-bottom: 15px;
}

.introduce-icon {
  width: 150px;
  object-fit: contain;
  margin-right: 200px;
  margin-top: 60px;
}

@keyframes scale-in {
  0% {
    transform: scale(1);
  }

  100% {
    transform: scale(1.1);
  }
}

.part2 {
  background-color: #dadada;
  height: 400px;
}

.p2-item {
  width: 350px;
  height: 350px;
  box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
  padding: 40px 30px;
  border-radius: 10px;
  background-color: #ffffff;
}

.p2-icon-container {
  width: 100px;
  height: 100px;
  box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
  border-radius: 50%;
  font-family: monospace;
  margin-bottom: 20px;
}

.p2-icon-container:hover {
  background-color: #f11965;
}

.p2-title {
  font-size: 18px;
  color: #333333;
  margin-bottom: 10px;
}

.p2-desc {
  color: #757575;
  font-size: 17px;
  width: 100%;
}

.p2-icon {
  width: 64px;
  height: 64px;
  background-size: 100% 100%;
  background-repeat: no-repeat;
}

.p2-icon.platform {
  background-image: url("../img/platform_red.png");
}

.p2-icon-container:hover .p2-icon.platform {
  background-image: url("../img/platform_white.png");
}

.p2-icon.life {
  background-image: url("../img/life_red.png");
}

.p2-icon-container:hover .p2-icon.life {
  background-image: url("../img/life_white.png");
}

.p2-icon.person {
  background-image: url("../img/person_red.png");
}

.p2-icon-container:hover .p2-icon.person {
  background-image: url("../img/person_white.png");
}

.part3 {
  background-color: #ffffff;
  height: 500px;
}

.scale-ani {
  animation: scale-in 2s infinite alternate ease-in-out;
}

.about-phone {
  width: 230px;
  object-fit: contain;
}

.p2-right {
  width: 700px;
  margin-right: 200px;
  line-height: 30px;
}

.part-bottom {
  padding: 30px;
  background-color: #1c1e1f;
  line-height: 30px;
  color: #ffffff;
}