* {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Noto Sans SC", sans-serif;
  font-optical-sizing: auto;
}

h2 {
  font-weight: 800;
  font-size: 36px;
}

header {
  box-shadow: 0 6px 8px rgba(0, 0, 0, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 999;
  background-color: #fff;
}
header .logo {
  display: flex;
  align-items: center;
}
header .logo p {
  font-weight: 800;
  font-size: 24px;
  margin-bottom: 0;
}
header .logo img {
  width: 42px;
  margin-right: 8px;
}
.sec-1 {
  padding-top: 74px;
  height: 800px;
  position: relative;
}
.bg {
  background: url("./images/main.png") center bottom/cover;
  position: fixed;
  width: 100%;
  height: 800px;
  top: 0;
  left: 0;
  z-index: -1;
}

.bg::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.3);
  z-index: 1;
}

.sec-1 .part {
  top: 50%;
  transform: translateY(-50%);
  left: 20px;
  width: 100%;
  z-index: 2;
  font-size: 32px;
  font-weight: 200;
  opacity: 0;
  visibility: hidden;
  transition: 0.2s;
  text-align: center;
}

.sec-1 .part h1 {
  font-size: 68px;
  line-height: 92px;
  font-weight: 900;
}

.sec-1 .part.active {
  left: 0px;
  opacity: 1;
  visibility: visible;
}

.sec-2 .text {
  max-width: 520px;
}
.sec-2 h2::before {
  content: "";
  display: block;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  position: absolute;
  background: #957f96;
  background: linear-gradient(90deg, #c9bfdc 0%, #ffffff 100%);
  z-index: 0;
  top: 0;
  left: -16px;
}
.sec-2 h2 span {
  position: relative;
  z-index: 1;
}

.sec-3 {
  background-color: rgb(249, 248, 251);
}

.sec-3 .text {
  max-width: 520px;
}
.sec-3 h2::before {
  content: "";
  display: block;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  position: absolute;
  background: #957f96;
  background: linear-gradient(90deg, #c9bfdc 0%, transparent 100%);
  z-index: 0;
  top: 0;
  left: -16px;
}
.sec-3 h2 span {
  position: relative;
  z-index: 1;
}
.sec-3 ul li:not(:last-child) {
  margin-bottom: 8px;
}

.sec-4 {
  padding: 42px 0 0;
  background-color: rgba(249, 248, 251, 1);
}

.sec-4 .cont {
  position: relative;
  background-color: #ffffff;
  border-top-right-radius: 100px;
  border-top-left-radius: 100px;
  z-index: 1;
  padding: 20px 0 42px;
}
footer {
  background-color: black;
  color: rgba(255, 255, 255, 0.7);
  text-align: center;
  font-size: 14px;
}
footer a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
}

footer a:hover {
  color: rgba(255, 255, 255, 1);
}

.fade-in {
  animation-fill-mode: forwards;
  animation: fadeInUp 1s 0.2s ease both;
}

@keyframes fadeInUp {
  0% {
    opacity: 0;
    transform: translateY(30px);
  }

  100% {
    opacity: 1;
    transform: translateY(0);
  }
}