@charset "utf-8";

/* IE11 兼容样式 */

/* 移除所有动画，直接显示 */
* {
  box-sizing: border-box;
}

html {
  font-size: 62.5%;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
}

/* 所有header元素直接显示opacity:1，移除动画 */
.header-left,
.header-right,
.header-center,
.header-title,
.header-fly {
  opacity: 1 !important;
  filter: none;
  animation: none !important;
  transform: none !important;
}

.header-bg,
.header-bottom,
.header-fly {
  opacity: 1 !important;
  filter: none;
}

.wrapper {
  width: 100%;
  height: 100%;
  display: block;
}

header {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%;
  overflow: hidden;
  display: block;
  z-index: 1;
}

.header-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.header-bg img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 400px;
}

.header-left {
  position: absolute;
  bottom: 5%;
  left: 0;
  width: 56%;
  z-index: 4;
}

.header-left img {
  display: block;
  width: 100%;
  height: auto;
}

.header-right {
  position: absolute;
  bottom: 5%;
  right: 0;
  width: 45%;
  z-index: 3;
}

.header-right img {
  display: block;
  width: 100%;
  height: auto;
}

.header-center {
  position: absolute;
  bottom: 5%;
  left: 23%;
  width: 52%;
  z-index: 1;
}

.header-center img {
  display: block;
  width: 100%;
  height: auto;
}

.header-title {
  position: absolute;
  bottom: 55%;
  left: 25%;
  width: 52%;
  z-index: 3;
}

.header-title img {
  display: block;
  width: 100%;
  height: auto;
}

.header-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 20%;
  z-index: 2;
}

.header-bottom img {
  display: block;
  width: 100%;
  height: 100%;
}

.header-fly {
  position: absolute;
  top: 0%;
  left: 50%;
  margin-left: -37.5%;
  width: 75%;
  z-index: 2;
}

.header-fly img {
  display: block;
  width: 100%;
  height: auto;
}

main {
  position: relative;
  margin-top: -1px;
  z-index: 6;
  width: 100%;
  min-height: 400px;
  height: auto !important;
  height: 400px;
  background: #f39819;
  background-image: none;
  overflow: hidden;
  display: block !important;
  visibility: visible !important;
}

.bg-circle {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  z-index: 1;
}

.circle-1 {
  width: 400px;
  height: 400px;
  top: 50px;
  right: -10%;
}

.circle-2 {
  width: 300px;
  height: 300px;
  bottom: -50px;
  left: 5%;
}

.circle-3 {
  width: 200px;
  height: 200px;
  top: 30%;
  left: -50px;
}

main ul {
  position: relative;
  z-index: 2;
  background-color: #fff;
  border-top-left-radius: 8px;
  border-top-right-radius: 8px;
  padding: 30px;
  width: 55%;
  margin: 0 auto;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  -ms-flex-pack: justify;
  -webkit-justify-content: space-between;
  justify-content: space-between;
  list-style: none;
  overflow: hidden;
}

main ul li {
  width: 30%;
  margin-left: 0;
  margin-right: 0;
  margin-bottom: 30px;
  padding: 0;
  display: block;
}

.card {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 133.33%;
  background-color: #f2f2f2;
  border-radius: 10px;
  display: block;
  overflow: hidden;
  box-shadow: 0 0 0 5px #ffffff80;
}

.card img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  min-height: 1px;
}

.card__content {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  padding: 20px;
  box-sizing: border-box;
  background-color: #f2f2f2;
  transform: rotateX(-90deg);
  transform-origin: bottom;
}

.card__title {
  margin: 0;
  font-size: 24px;
  color: #333;
  font-weight: 700;
}

.card__description {
  margin: 10px 0 0;
  font-size: 14px;
  color: #777;
  line-height: 1.4;
}

footer {
  width: 55%;
  margin: 0 auto;
  padding: 40px;
  height: auto;
  background-color: #ebebeb;
  color: #999;
  display: flex;
  align-items: center;
  justify-content: center;
}

footer p {
  margin: 0;
  font-size: 16px;
}

.scroll-to-top {
  position: fixed;
  bottom: 15%;
  right: 60px;
  width: 50px;
  height: 50px;
  background: #feb957;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  filter: alpha(opacity=0);
  visibility: hidden;
  z-index: 9999;
  box-shadow:
    0 6px 20px rgba(254, 185, 87, 0.4),
    0 2px 8px rgba(254, 185, 87, 0.3);
}

.scroll-to-top.show {
  opacity: 1;
  filter: alpha(opacity=100);
  visibility: visible;
}

.scroll-to-top img {
  width: 24px;
  height: 24px;
}

/* 卡片直接显示，不动画 */
.card-enter {
  opacity: 1 !important;
  filter: none;
  transform: none !important;
  transition: none !important;
  transition-delay: 0 !important;
}

.card-enter.card-visible {
  opacity: 1 !important;
  filter: none;
  transform: none !important;
}

@media (max-width: 1023px) {
  .card-enter {
    transform: translateY(40px);
  }

  .card-enter.card-visible {
    transform: translateY(0);
  }
}