body {
  height: 100vh;
  overflow: hidden;
}
main > div {
  padding: 0 7vw;
  height: 100vh;
}
main .first-block {
  padding: 30vh 7vw 0;
  position: relative;
  overflow: hidden;
  margin-bottom: 0;
  background: url(../images/a.jpg) no-repeat left top / 100% 100%;
  color: #fff;
}
main .first-block #container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}
main .first-block .left {
  position: absolute;
  left: 7vw;
  bottom: 19vh;
}
main .first-block .left h1 {
  font-size: 1.56vw;
  letter-spacing: 0.1em;
  margin-bottom: 0.7em;
  color: #fff;
  font-weight: normal;
}
main .first-block .left .more {
  position: relative;
  cursor: pointer;
  margin-top: 2.5em;
  z-index: 11;
}
main .first-block .left .more b {
  color: black;
  font-weight: bold;
}
main .first-block .right {
  position: absolute;
  bottom: 19vh;
  right: 3vw;
  font-size: 1.04vw;
}
main .first-block .right p {
  margin: 0;
  line-height: 1.8;
}
main .product-block {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: 4em;
  font-size: 1.3vw;
  color: #120522;
  background: #f5f7f2;
}
main .product-block h3 {
  border-bottom: 1px solid #d3d2d2;
  padding: 0.8em 0;
  margin: 0;
  cursor: pointer;
  font-family: JinBuTi;
  transition: all 0.3s ease;
}
main .product-block h3:hover {
  border-color: #999;
}
main .product-block .title {
  font-size: 0.8em;
  margin-top: -3.5em;
  color: #999999;
  margin-bottom: 1em;
}
main .product-block section {
  margin-top: 10px;
  font-size: 0.7em;
  max-height: 0;
  color: #443a4f;
  line-height: 1.2;
  transition: max-height 0.5s ease;
}
main .product-block section .circle-btn button {
  color: #000;
}
main .product-block section a {
  font-size: 0.9em;
  margin-top: 1.8em;
}
main .product-block section b {
  margin-bottom: 1em;
}
main .product-block .product-img {
  flex: 0 0 45%;
}
main .product-block .product-img img {
  width: 100%;
}
main .news-block {
  padding-right: 0;
  display: flex;
  flex-direction: column;
  align-items: baseline;
  justify-content: center;
  color: #fff;
  background-color: #120522;
}
main .news-block h2 {
  font-family: JinBuTi;
  font-size: 3vw;
}
main .news-block h2 b {
  display: block;
  margin-bottom: -0.3em;
  font-size: 1.5em;
  color: #3d324a;
}
main .news-block .slider-wrapper {
  width: 100%;
  user-select: none;
  overflow: hidden;
  cursor: grab;
  touch-action: pan-y;
}
main .news-block .slider-pager {
  margin-top: 7vh;
  padding-right: 7vw;
  display: flex;
  gap: 2vw;
  width: 100%;
  background-color: transparent;
}
main .news-block .slider-pager .more {
  box-sizing: border-box;
  margin-left: auto;
  font-weight: 700;
  overflow: visible;
  cursor: pointer;
}
main .news-block .slider-pager img {
  height: auto;
  cursor: pointer;
  filter: grayscale(1);
}
main .news-block .slider-pager img.active {
  filter: grayscale(0);
}
main .news-block .slider {
  display: flex;
  gap: 3.13vw;
  width: 100%;
  height: 100%;
  will-change: transform;
  padding-right: 30px;
}
main .news-block .slider img {
  height: 100%;
  width: 100%;
  object-fit: cover;
  pointer-events: none;
  user-select: none;
}
main .news-block .slide {
  position: relative;
  flex: 0 0 25%;
  border-radius: 0.8em;
  overflow: hidden;
  cursor: pointer;
}
main .news-block .slide h4 {
  position: absolute;
  bottom: 0;
  padding: 1em 2em;
  font-weight: normal;
  margin: 0;
  line-height: 1.4;
}
main .news-block .slide > img {
  aspect-ratio: 1.2 / 1;
}
main .news-block .slide:hover {
  line-height: 1.4;
  font-family: JinBuTi;
}
main .news-block .slide:hover .hover {
  opacity: 1;
}
main .news-block .slide .hover {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 2em 2.5em;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background-color: #5e33f6;
  opacity: 0;
  transition: opacity 0.3s;
  line-height: 1.3;
  font-size: 1vw;
}
main .news-block .slide .hover h3 {
  font-weight: normal;
  margin: 0;
}
main .news-block .slide .hover p {
  display: -webkit-box;
  margin: 0;
  font-size: 0.8em;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 7;
  line-height: 1.5;
  overflow: hidden;
  text-overflow: ellipsis;
}
main .news-block .slide .hover ul {
  display: flex;
  font-size: 0.8em;
}
main .news-block .slide .hover ul li {
  flex: 0 0 50%;
  display: flex;
  gap: 0.8em;
  align-items: center;
}
main .news-block .slide .hover ul img {
  width: 1em;
  height: auto;
}
main .slider-wrapper.dragging {
  cursor: grabbing;
}
main .intro-block {
  background-color: #120522;
  padding: 0;
  position: relative;
}
main .intro-block .text-animation {
  line-height: 1.7;
}
main .intro-block .content {
  height: 100%;
  padding: 0 7vw;
  padding-top: 8vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: #fff;
  font-size: 0.93vw;
  line-height: 1.4;
  position: relative;
  z-index: 2;
}
main .intro-block .content p {
  width: 80%;
  margin: 0 auto;
  text-align: center;
}
main .intro-block .content .group {
  margin-top: 10vh;
  display: flex;
  align-items: center;
  font-family: Impact;
  justify-content: space-between;
}
main .intro-block .content .group ul li:first-child {
  font-size: 2.5em;
  font-weight: bold;
  color: #71f362;
}
main .intro-block .content .group ul li:first-child span {
  font-size: 0.4em;
  padding-left: 0.3em;
  color: white;
}
main .intro-block #effect {
  position: absolute;
  overflow: hidden;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}
main .image-block {
  position: relative;
  z-index: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0;
  background-size: 100% 100%;
  background-position: left bottom;
  background-repeat: no-repeat;
  background-color: red;
  clip-path: inset(10%);
  transition: all linear 1s;
}
main .image-block::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
}
main .image-block.animate {
  clip-path: inset(0%);
  background-size: 100% 100%;
}
main .image-block.animate h2,
main .image-block.animate a {
  opacity: 1;
}
main .image-block h2 {
  z-index: 2;
  font-size: 3.64vw;
  color: white;
  opacity: 0;
  transition: all 5s ease;
}
main .image-block a {
  display: block;
  line-height: 2.5;
  padding: 0 3em;
  z-index: 2;
  background-color: #71f362;
  border-radius: 40px;
  opacity: 0;
  transition: all 5s ease;
}
.text-animation {
  text-align: center;
}
.text-animation span {
  display: inline-block;
  opacity: 0;
  transform: translateY(30px);
  white-space: pre;
}
.more:hover circle {
  stroke-dashoffset: 0;
  /* 悬浮时画完整个圆 */
}
.circle-btn {
  position: relative;
  width: 30px;
  height: 30px;
}
.circle-btn button {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  padding-bottom: 3px;
  border: none;
  background: transparent;
  color: #fff;
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  z-index: 2;
}
.circle-btn svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
  overflow: visible;
  /* 让动画从顶部开始 */
}
.circle-btn circle {
  fill: none;
  stroke: #71f362;
  stroke-width: 3;
  stroke-dasharray: 283;
  /* 圆周长 = 2πr ≈ 2*3.14*45 */
  stroke-linecap: round;
  stroke-dashoffset: 283;
  transition: stroke-dashoffset 0.8s ease;
}