/* 引入字体 */
@import url('https://fonts.googleapis.com/css?family=Poppins:300,400,500,600,700,800,900&display=swap');


* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
    /* 当用户手动导航或者 CSSOM scrolling API 触发滚动操作时 */
    scroll-behavior: smooth; 
  }
  
  body {
    min-height: 100vh;
    overflow-x: hidden;
    background: linear-gradient(#2b1055,#7597de);
  }

  a {
    text-decoration: none; /*去掉下划线*/
  }


/*运动的滚动图片*/
  section11 {
    background-image: url(images/城市背景.png);
    position: relative;
    width: 100%;
    height: 100vh;
    padding: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
  }
  
  section11::before {
    content: '';
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 100px;
    background: linear-gradient(to top, #1c0522, transparent);
    z-index: 1000;
  }
  
  section11 img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* object-fit CSS 属性指定可替换元素（例如：<img> 或 <video>）的内容应该如何适应到其使用高度和宽度确定的框。 */
    object-fit: cover;
    pointer-events: none;
  }
  
  section11 img#moon {
    /* mix-blend-mode CSS 属性描述了元素的内容应该与元素的直系父元素的内容和元素的背景如何混合。 */ 
    mix-blend-mode: screen;
  }
  
  section11 img#mountains_front {
    z-index: 10;
  }
  
  #text {
    font-family:'Courier New', Courier, monospace;
    position: absolute;
    right: -700px;
    color: #fff;
    white-space: nowrap;
    font-size: 9vw;
    z-index: 10;
  }
  
  #btn11 
  {
    width: 150px;
    text-decoration: none;
    display: inline-block;
    padding: 8px 35px;
    border-radius: 40px;
    background: #fff;
    color: #ca4701;
    font-size: 1.5em;
    font-weight: bold;
    z-index: 9;
    box-shadow: 0 0 0 5px #c5450580;
    transform: translateY(100px);
  }
  

  .hilight{
    color: #478480;
    color: #ca4701;
    font-weight: bold;
    z-index: 90;
    box-shadow: 0 0 0 5px #ff550080;
  }







  











/*头部下的内容块*/
  .sec {
    position: relative;
    width: 100%;
    background: linear-gradient(#000000,#7597de);
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  
  .topword{
    font-size: 3.5em;
    margin-bottom: 10px;
    color: #fff;
    display: flex;
    justify-content: center;
  }
  
  .sec p {
    font-size: 1em;
    color: #000000;
    margin: 10px;
  }


  .whitebox{
    display: flex;
    flex-wrap: wrap;
    min-height: 100px;
    background: #ffffff;
    margin: 10px;
    display: flex;
    border-radius: 20px;
  }


  .pinkbox{
    min-height: 20px;
    min-width: 10px;
    margin: 20px;
    display: flex;
  }

 .pinkbox h1{
  min-width: 100px;
  min-height: 100px;
  color: #00000086;
  display: flex;
  align-items: center;
  font-size: 20px;
 }

/*别删，头部按钮的粘贴块*/
.pinkboxx{
    min-height: 20px;
    min-width: 10px;
    margin: 20px;
    display: flex;
    z-index: 100;
    position: absolute;
  }













  /*这是头部栏*/
  .containertop{
    width: 100%;
    height: 70px;
    line-height: 70px;
    top: 0px;
    z-index: 100000;
    background-color: rgb(112, 147, 158);
    display: flex;
    position: fixed;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    position: sticky top;
    box-shadow: 0 5px 10px #ffd9b7;
  }

  .cantsee{
    height: 75px;
  }


  /*原理未明，3d旋转导航栏*/
ult {
	/* 让li水平排列 */
	display: flex;
  justify-content: center;
}

ult li {
  display: inline-flex;
	position: relative;
	/* 取消项目编号 就是小黑点 */
	list-style: none;
	width: 10vh;
	height: 50px;
	/* 让鼠标变成小手 */
	cursor: pointer;
	/* 让子元素保留其3D位置 */
	transform-style: preserve-3d;
	transition: all 1s;
}
ult li:hover {
	transform: rotateX(90deg);
}
ult li:hover div:first-child {
	background-color: #63aba6;
	background-size: 5px 5px;
	background-position: 30px 30px;
	background-image: linear-gradient(
		45deg,
		#6cbdb8 25%,
		rgba(0, 0, 0, 0) 25%,
		rgba(0, 0, 0, 0) 75%,
		#478480 75%,
		#478480
	);
}
ult li div {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	line-height: 50px;
	text-align: center;
	font-size: 20px;
	font-weight: 700;
	color: #fff;
}
ult li div:first-child {
	background-color: #74adaa;
	transform: translateZ(25px);
}
ult li div:last-child {
	background-color: #51938f;
	background-size: 5px 5px;
	background-position: 30px 30px;
	background-image: linear-gradient(
		45deg,
		#478480 25%,
		rgba(0, 0, 0, 0) 25%,
		rgba(0, 0, 0, 0) 75%,
		#478480 75%,
		#478480
	);
	/* 让第二个面往下移动25px 沿着X轴旋转-90度 */
	transform: translateY(25px) rotateX(-90deg);
}
  














/*头部按钮*/
.cta {
  height: 60px;
  display: flex;
  align-content: center;
  padding: 10px 10px;
  text-decoration: none;
  font-family: 'Poppins', sans-serif;
  font-size: 25px;
  color: white;
  background: #3356e0;
  transition: 1s;
  box-shadow: 6px 6px 0 black;
  transform: skewX(-15deg);
  margin: 12px;
}

.cta:focus {
  outline: none;
}

.cta a{
  color: white;
}

a:hover {
  color:#FBC638; /*鼠标移动到链接的颜色*/
  text-decoration: underline;
}

a:active {
  color: #FBC638; /*鼠标点击时的颜色*/
}
.cta:hover {
  transition: 0.5s;
  box-shadow: 10px 10px 0 #FBC638;
}

.cta .second {
  transition: 0.5s;
  margin-right: 0px;
}

.cta:hover  .second {
  transition: 0.5s;
  margin-right: 45px;
}

.span {
  transform: skewX(15deg)
}

.second {
  width: 20px;
  margin-left: 30px;
  position: relative;
  top: 12%;
}

.one {
  transition: 0.4s;
  transform: translateX(-60%);
}

.two {
  transition: 0.5s;
  transform: translateX(-30%);
}

.cta:hover .three {
  animation: color_anim 1s infinite 0.2s;
}

.cta:hover .one {
  transform: translateX(0%);
  animation: color_anim 1s infinite 0.6s;
}

.cta:hover .two {
  transform: translateX(0%);
  animation: color_anim 1s infinite 0.4s;
}

@keyframes color_anim {
  0% {
    fill: white;
  }

  50% {
    fill: #FBC638;
  }

  100% {
    fill: white;
  }
}












 /*星星*/
 .star {
  position: absolute;
  width: 0;
  height: 0;
  opacity: 0.2;
  border: 2px solid transparent;
  border-bottom: 4px solid #ae0000;
  animation: flash 2s infinite linear;
}
.star::before {
  content: "";
  position: absolute;
  left: -2px;
  top: 4px;
  border: 2px solid transparent;
  border-top: 4px solid #fff;
}
@keyframes flash {
  20% {
    opacity: 0.2;
  }
  40% {
    opacity: 0.5;
  }
  60% {
    opacity: 1;
  }
  80% {
    opacity: 0.5;
  }
  100% {
    opacity: 0.2;
  }
}













/*这是卡片*/
.card {
  position: relative;
  width: 350px;
  min-height: 350px;
  background-color: #f2f2f2;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  perspective: 1000px;
  box-shadow: 0 0 0 5px #c5450580;
  transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.card svg {
  width: 48px;
  fill: #333;
  transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.card__image {
  width: 100%;
  height: 100%;
}

.card img{
  object-fit: contain;
  width: 100%;
  height: 100%;
}

.card:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 16px rgba(255, 255, 255, 0.2);
}

.card__content {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  padding: 10px;
  box-sizing: border-box;
  background-color: #f2f2f2;
  transform: rotateX(-90deg);
  transform-origin: bottom;
  transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.card:hover .card__content {
  transform: rotateX(0deg);
}

.card__title {
  margin: 0;
  font-size: 20px;
  color: #333;
  font-weight: 700;
}

.card:hover svg {
  scale: 0;
}

.card__description {
  margin: 10px 0 10px;
  font-size: 12px;
  color: #777;
  line-height: 1.4;
}

.card__button {
  padding: 15px;
  border-radius: 8px;
  background: #777;
  border: none;
  color: white;
}

.secondary {
  background: transparent;
  color: #777;
  border: 1px solid #777;
}

/*漫画高亮*/
.title1{
  color: white;
  font-size: 50px;
  font: 900 30px '';
  margin-bottom: 5px;
  position: relative;
  position: absolute;
  top:10px;
  right: 30px;
  text-shadow:1px 2px 5px #00000090;
}

.title1 span {
  position: relative;
  top: -20px;
  margin-left: 5px;
  background: #ffe44c;
  border-radius: 5px;
  color: #000000;
  font-size: 14px;
  padding: 0px 4px;
}