* {
  margin: 0;
  padding: 0;
}

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

h2 {
  font-weight: 800;
  font-size: 34px;
}

header {
  box-shadow: 0 6px 8px rgba(0, 0, 0, 0.03);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 999;
}
header::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  z-index: -1;
  display: block;
  width: 100%;
  height: 100%;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
header img {
  width: 160px;
}
.sec-1 {
  padding-top: 74px;
  height: 800px;
  position: relative;
}
.bg {
  background: url("./images/main.jpg") center bottom/cover;
  position: absolute;
  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;
}

.sec-1 .part h1 {
  font-size: 56px;
  font-weight: 900;
}

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

.sec-2 {
  background-color: #fff;
  padding: 120px 0;
  /* background-color: rgb(252, 229, 231); */
  position: relative;
}

.sec-2 .right {
  width: 50%;
  overflow: hidden;
  position: absolute;
  right: 0;
  top: 60px;
  border-top-left-radius: 400px;
}
.sec-2 .left {
  max-width: 400px;
  margin-right: 120px;
}
.sec-2 .item {
  padding: 50px 24px;
  border-radius: 20px;
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.7);
}

.sec-2 .list > div:nth-child(1) .item {
  border-bottom-right-radius: 0;
  text-align: end;
  background-color: rgb(230, 0, 18, 0.1);
}

.sec-2 .list > div:nth-child(2) .item {
  border-bottom-left-radius: 0;
  background-color: rgba(206, 163, 58, 0.3);
}

.sec-2 .list > div:nth-child(3) .item {
  border-top-right-radius: 0;
  text-align: end;
  background-color: rgba(140, 84, 36, 0.2);
}

.sec-2 .list > div:nth-child(4) .item {
  border-top-left-radius: 0;
  background-color: rgb(230, 0, 18, 0.1);
}

.sec-2 .item h3 {
  font-size: 24px;
  font-weight: 700;
  color: rgba(231, 1, 16, 0.7);
}

.sec-3 {
  padding: 80px 0;
  background-color: rgb(243, 246, 251);
  position: relative;
  overflow: hidden;
}

.sec-3 .left {
  width: 50%;
  overflow: hidden;
  flex-shrink: 0;
  border-radius: 50px;
  border-bottom-right-radius: 0;
  margin-right: 62px;
}

.sec-3 .right {
  max-width: 500px;
}
.sec-3 .left img {
  transition: 0.3s ease-in;
}
.sec-3 .left:hover img {
  transform: scale(1.04);
}

.sec-4 {
  padding: 40px 0 80px;
  background-color: rgb(243, 246, 251);
  position: relative;
  overflow: hidden;
}

.sec-4 .pic {
  width: 50%;
  overflow: hidden;
  flex-shrink: 0;
  border-radius: 50px;
  border-top-left-radius: 0;
  margin-left: 62px;
}
.sec-4 .pic img {
  transition: 0.3s ease-in;
}
.sec-4 .pic:hover img {
  transform: scale(1.04);
}
.sec-4 .text {
  max-width: 600px;
}

.sec-4 .text ul li {
  margin-bottom: 12px;
}

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);
}