* {
  margin: 0;
  padding: 0;
}

@font-face {
  font-family: "inter";
  src: url("../font/Inter-Bold-4.otf");
}

@font-face {
  font-family: "SemiBold";
  src: url("../font/Manrope-SemiBold.otf");
}

html {
  scroll-behavior: smooth;
}

body {
  position: relative;
}

.header {
  width: 100%;
  height: 100px;
  background-color: rgb(40, 40, 41);
  position: fixed;
  top: 0;
  z-index: 99999;
  opacity: 0;
  transition: opacity 0.6s ease-in-out;
  display: flex;
  justify-content: space-between;
  padding: 0 20px;
  box-sizing: border-box;
}

.top_logo {
  height: 80px;
  margin-top: 10px;
}

.header_right {
  display: flex;
  gap: 30px;
}

.header_right .nav_item {
  cursor: pointer;
  display: flex;
  align-items: center;
  list-style: none;
  color: white;
  line-height: 100px;
  font-size: 16px;
  display: flex;
}

.header_right .dropdown-content {
  display: none;
  position: absolute;
  min-width: 200px;
  background-color: #282829;
  box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
  z-index: 1;
  top: 100px;
  left: -50px;
  height: 100px;
}

.header_right a {
  text-decoration: none;
  color: white;
  font-weight: bold;
  transition: 0.5s;
}

.header_right .dropdown:hover .dropdown-content {
  display: block;
}

.header_right .dropdown {
  position: relative;
}

.header_right .nav_item img {
  width: 15px;
  height: 15px;
  margin-right: 5px;
}

.header_right .nav_item svg {
  width: 15px;
  height: 15px;
  margin-right: 5px;
}

.header_right .nav_item .svg1 path {
  stroke: #fff;
  fill: #fff;
  transition: 0.5s;
}

.header_right .nav_item .svg2 path {
  stroke: #fff;
  /* transition: stroke 0.5s ease-in-out; */
  transition: 0.5s;
}

.dropdown-content .menu_item {
  height: 30px;
  line-height: 30px;
  text-align: center;
  cursor: pointer;
}

.dropdown-content .menu_item:hover {
  background-color: rgb(61, 61, 61);
}

.header_right .nav_item:hover a {
  color: #949494;
}

.header_right .nav_item:hover .svg1 path {
  stroke: #949494;
  fill: #949494;
}

.header_right .nav_item:hover .svg2 path {
  stroke: #949494;
}

.box1 {
  width: 100%;
  height: 100vh;
  position: relative;
  overflow: hidden;
  background-color: rgb(34, 34, 34);
}

#bgVideo {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 100%;
  height: auto;
}

.yy {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  background-color: rgba(0, 0, 0, 0.6);
  z-index: 2;
}

.index_font {
  width: 75%;
  position: absolute;
  bottom: 6%;
  left: 2%;
  z-index: 3;
  user-select: none;
}

.gradient-line1 {
  width: 100%;
  height: 2px;
  background: linear-gradient(to left, #292929, red);
}

.menu {
  position: absolute;
  top: 20px;
  right: 0;
}

.menu li {
  width: 160px;
  height: 60px;
  border-bottom: 3px solid white;
  font-size: 26px;
  font-weight: bold;
  line-height: 60px;
  text-align: center;
  list-style: none;
  color: white;
}

.menu li a {
  color: white;
  text-decoration: none;
}

.box2 {
  width: 100%;
  height: auto;
  background-color: rgb(34, 34, 34);
}

.box2_main1 {
  width: 100%;
  height: 745px;
  background-color: rgb(41, 41, 41);
}

.box2_main2 {
  width: 1100px;
  height: auto;
  margin: 0 auto;
}

.fw {
  font-size: 35px;
  color: white;
  font-weight: bold;
  padding-top: 20px;
  text-align: right;
  letter-spacing: 3px;
}

.top1 {
  width: 100%;
  height: 30px;
  margin-top: 25px;
  /* border: 1px solid white; */
}

.gradient-line {
  width: 100%;
  height: 1px;
  margin-top: 10px;
  background: linear-gradient(to right, #292929, red);
}

.list {
  width: 1100px;
  height: 300px;
  margin-top: 40px;
}

.list ul li {
  width: 263.75px;
  height: 300px;
  float: left;
  background-color: rgb(217, 217, 217);
  list-style: none;
  border-radius: 10px;
  overflow: hidden;
}

.list ul li:nth-child(n + 2) {
  margin-left: 15px;
}

.video-container {
  position: relative;
  width: 500px;
  height: 300px;
}

.background-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 102%;
  object-fit: cover;
  filter: grayscale(100%);
}

.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(165, 165, 165, 0);
  opacity:;
}

.a {
  position: absolute;
  bottom: 40px;
  left: 20px;
  color: white;
  font-size: 16px;
  font-weight: bold;
}

.title2 {
  font-size: 35px;
  color: white;
  font-weight: bold;
  margin-top: 100px;
  text-align: center;
  letter-spacing: 3px;
}

.title3 {
  font-size: 12px;
  color: rgb(170, 0, 0);
  font-weight: bold;
  text-align: center;
  letter-spacing: 2px;
  margin-top: 10px;
}

.box_1 {
  width: 1100px;
  height: 400px;
  margin-top: 90px;
  display: flex;
  flex-wrap: wrap;
}

.box_1_item {
  width: 450px;
  height: 150px;
  display: flex;
}

.tp {
  width: 60px;
  height: 60px;
}

.tp img {
  width: 100%;
}

.b1 {
  color: white;
  margin-top: 7px;
  margin-left: 30px;
}

.content {
  width: 390px;
}

.b2 {
  color: rgb(134, 134, 134);
  font-size: 12px;
  margin-top: 15px;
  margin-left: 30px;
}

.box2_main3 {
  width: 100%;
  height: 400px;
  background-color: rgb(41, 41, 41);
  background-size: cover;
  padding-top: 150px;
  margin-top: 50px;
  padding-bottom: 150px;
}

.main2 {
  width: 1100px;
  height: 400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
}

.c1 {
  width: 550px;
  height: 400px;
  border-radius: 10px;
  background-color: rgb(217, 217, 217);
}

.c2 {
  margin-left: 70px;
}

.c3 {
  width: 400px;
  height: 60px;
  display: flex;
  color: white;
}

.c3 img {
  width: 50px;
  height: 50px;
}

.box2_main4 {
  width: 100%;
  height: auto;
  position: relative;
  overflow: hidden;
}

.aaa {
  width: 90px;
  height: 90px;
  position: absolute;
  left: 50%;
  top: 50%;
  margin-left: -45px;
  margin-top: -45px;
  z-index: 999;
}

.trapezoid {
  position: relative;
  width: 420px;
  height: 0;
  border-bottom: 200px solid #dc323f;
  border-left: 90px solid transparent;
  position: absolute;
  right: 0;
  bottom: 0;
  z-index: 999;
}

.box2_main5 {
  width: 1100px;
  height: auto;
  margin: 0 auto;
  background-color: rgb(34, 34, 34);
  padding-bottom: 100px;
}

.one {
  width: 1010px;
  height: 300px;
  margin: 0 auto;
  margin-top: 80px;
  display: flex;
}

.item {
  width: 250px;
  height: 300px;
}

.yuan {
  width: 150px;
  height: 150px;
  background-color: rgb(220, 50, 63);
  position: relative;
  border-radius: 50%;
  margin: 0 auto;
  margin-top: 30px;
}

.xiaoyuan {
  width: 60px;
  height: 60px;
  background-color: white;
  border-radius: 50%;
  position: absolute;
  left: 50%;
  margin-left: -30px;
  top: -20px;
  text-align: center;
  line-height: 60px;
  color: rgb(220, 50, 63);
  font-size: 20px;
  /* font-family: 'inter'; */
}

.jt1 {
  width: 130px;
  margin-top: 100px;
}

.two {
  width: 630px;
  height: 300px;
  display: flex;
  margin: 0 auto;
  margin-top: 100px;
}

#video1 {
  width: 100%;
}

.zgc {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  background-image: url(../img/zgc.jpg);
  background-size: 100% 100%;
}

.box3 {
  width: 100%;
  height: 600px;
  background-color: #292929;
  background-repeat: no-repeat;
  overflow: hidden;
  position: relative;
}

/* .box3::before,
.box3::after {
	content: "";
	position: absolute;
	top: -10px;
	width: 10px;
	height: 10px;
	background-color: #000;
	box-shadow: 5px 5px 5px rgba(0, 0, 0, 0.5);
} */

/* .box3::before {
	left: -10px;
}

.box3::after {
	right: -10px;
}
 */

.box3 .logo_footer {
  width: 150px;
  height: auto;
  position: absolute;
  margin-left: -75px;
  left: 50%;
  top: 150px;
}

.tb {
  width: 290px;
  height: 25px;
  position: absolute;
  top: 340px;
  left: 50%;
  margin-left: -145px;
  display: flex;
  gap: 30px;
}

.tb img {
  height: 100%;
  transition: 0.3s ease-in-out;
  filter: brightness(0%) invert(100%);
}

.tb img:hover {
  filter: grayscale(0%);
  transform: scale(1.2);
}

.blurry-line {
  height: 1px;
  background-color: #fafafa25;
  position: absolute;
  bottom: 120px;
  z-index: 99999;
  width: 100%;
}

.box3 .p1 {
  font-family: "微软雅黑";
  font-size: 13px;
  color: rgb(173, 172, 173);
  font-weight: bold;
  position: absolute;
  bottom: 60px;
  left: 50%;
  margin-left: -163px;
}

.box3 .p2 {
  font-family: "微软雅黑";
  font-size: 13px;
  font-weight: bold;
  position: absolute;
  bottom: 40px;
  left: 50%;
  margin-left: -78px;
}

.box3 .p2 a {
  text-decoration: none;
  color: rgb(173, 172, 173);
}

.lanuage {
  width: 130px;
  height: 25px;
  border: 1px solid rgb(173, 172, 173);
  color: rgb(173, 172, 173);
  font-weight: bold;
  background-color: #000000;
  position: absolute;
  bottom: 50px;
  right: 50px;
  outline: none;
}

option::-ms-expand {
  display: none;
}

option {
  -moz-appearance: none;
  -webkit-appearance: none;
  appearance: none;
  outline: none;
  border: 0;
}

option:hover {
  color: #ffffff;
  background-color: black;
  outline: none;
  border: 0;
}

select option {
  appearance: none;
  /* 隐藏平台默认外观 */
  border: none;
  /* 去掉边框 */
}
.zitiSB {
  font-family: "SemiBold";
  font-weight: bold;
}

.video-wrap {
  position: relative;
  padding-bottom: 55%;
  padding-top: 30px;
  height: 0;
  overflow: hidden;
}
.video-wrap iframe {
  position: absolute;
  top: 0;
  width: 100%;
  height: 100%;
}