@keyframes kf {
  0% {
    height: 0;
  }
  100% {
    height: 1.14rem;
  }
}
@keyframes rotateBack {
  0%,
  15%,
  25%,
  35% {
    transform: rotate(0deg);
  }
  10%,
  30% {
    transform: rotate(5deg);
  }
  20%,
  40% {
    transform: rotate(-5deg);
  }
}
.empty {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    text-align: center;
    box-sizing: border-box;
    padding: 1rem 0;
}
.empty__image {
    width: 2rem;
}
.empty__description {
    margin-top: .2rem;
}
/* 横幅媒体样式 */
.banner {
    position: relative;
    width: 100%;
    height: auto;
    overflow: hidden;
}

.banner_video,
.banner_image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.banner_image {
    display: block;
}
.nav-top {
  z-index: 1001;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 0.64rem;
  background-color: rgba(0, 0, 0, 0.6);
}
.nav-top .mid {
  margin: 0 auto;
  width: 100%;
  height: 100%;
  max-width: 1920px;
  padding: 0 1.2rem 0 0.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-top .mid .nav-top-left {
  width: auto;
  height: 0.34rem;
}
.nav-top .mid .nav-top-left .nav-top-back {
  display: none;
}
.nav-top .mid .nav-top-right {
  height: 100%;
  display: flex;
  align-items: center;
  font-size: 0.18rem;
}
.nav-top .mid .nav-top-right a {
  color: #fff;
  padding: 0 0.25rem;
}
.nav-top .mid .nav-top-right a:hover {
  color: #bfe4ff;
}
.nav-top .mid .nav-top-right ul {
  height: 100%;
  display: flex;
  align-items: center;
}
.nav-top .mid .nav-top-right ul li {
  height: 100%;
  margin: 0 0.18rem;
  position: relative;
  display: flex;
  align-items: center;
}
.nav-top .mid .nav-top-right ul li.active a {
  color: #b4deff;
}
.nav-top .mid .nav-top-right ul li .nav-dropdown {
  position: absolute;
  top: 0.64rem;
  left: 0;
  width: 100%;
  background-color: #7aaafd;
  padding: 0 0.1rem;
  height: 0;
  overflow: hidden;
}
.nav-top .mid .nav-top-right ul li .nav-dropdown a {
  padding: 0;
  display: block;
  width: 100%;
  height: 0.5rem;
  line-height: 0.5rem;
  text-align: center;
  font-size: 0.18rem;
}
.nav-top .mid .nav-top-right ul li .nav-dropdown a:not(:last-child) {
  border-bottom: 1px solid #b2cefd;
  margin-top: 0.06rem;
}
.nav-top .mid .nav-top-right ul li .nav-dropdown a:hover {
  color: #b4deff;
}
.nav-top .mid .nav-top-right ul li.kf:hover .nav-dropdown {
  animation: kf 0.3s ease-in-out forwards;
}

/* 搜索框样式 */
.nav-top .mid .nav-top-right .search {
  margin-left: 0.3rem;
  display: flex;
  align-items: center;
}

.nav-top .mid .nav-top-right .search .input-group {
  display: flex;
  align-items: center;
  border-radius: 0.2rem;
  overflow: hidden;
  background-color: rgba(255, 255, 255, 0.9);
  border: 1px solid #3c82fc;
}

.nav-top .mid .nav-top-right .search .form-control {
  border: none !important;
  outline: none;
  padding: 0.08rem 0.15rem;
  font-size: 0.16rem;
  background-color: transparent;
  width: 1.5rem;
  color: #333;
  box-shadow: none;
}

.nav-top .mid .nav-top-right .search .form-control:focus {
  border: none !important;
  outline: none !important;
  box-shadow: none;
}

.nav-top .mid .nav-top-right .search .form-control::placeholder {
  color: #999;
}

.nav-top .mid .nav-top-right .search .input-group-append .btn {
  border: none;
  outline: none;
  padding: 0.08rem 0.2rem;
  font-size: 0.16rem;
  cursor: pointer;
  background-color: #3c82fc;
  color: #fff;
  transition: background-color 0.3s ease;
}

.nav-top .mid .nav-top-right .search .input-group-append .btn:hover {
  background-color: #2a68e6;
}

.nav-top .mid .menu-button {
  display: none;
}
.nav-top .mid .menu-list {
  display: none;
}
.mute-box {
  width: 0.75rem;
  height: 0.34rem;
  border-radius: 1rem;
  background-color: rgba(0, 0, 0, 0.6);
  color: #fff;
  font-size: 0.14rem;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0 0.09rem;
  margin-left: 0.3rem;
  position: relative;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.mute-box p {
  height: 100%;
  line-height: 0.34rem;
}
.mute-box .mute-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  left: unset;
  right: 0.06rem;
  width: 0.28rem;
  height: 0.28rem;
  background-position: 0 0;
  background-repeat: no-repeat;
  background-size: 100% 100%;
  background-image: url(../images/index/mute-off.png);
}
.mute-box .mute-btn.on {
  background-image: url(../images/index/mute-on.png);
  left: 0.06rem;
  right: unset;
}
.banner .mute-box {
  display: none;
}
.back-top {
  z-index: 10;
  position: fixed;
  bottom: 1.5rem;
  left: calc(50% + 6.3rem);
  width: 2.06rem;
  height: 1.54rem;
  background: url(../images/index/back_top.png) no-repeat 0 0 / 100% 100%;
  cursor: pointer;
  display: none;
}
.back-top .back-top-img {
  width: 0.91rem;
  height: 0.87rem;
  position: absolute;
  bottom: 0.53rem;
  left: 0;
  transform-origin: 0.62rem 0.9rem;
  animation: rotateBack 1s linear infinite alternate;
}
@media screen and (max-width: 751px) {
  .nav-top {
    height: 1rem;
  }
  .nav-top .mid {
    padding: 0 0.44rem 0 0.25rem;
  }
  .nav-top .mid .nav-top-left {
    display: flex;
    align-items: center;
    height: 0.45rem;
  }
  .nav-top .mid .nav-top-left .nav-top-back {
    display: flex;
    align-items: center;
    color: #fff;
    font-size: 0.3rem;
    margin-right: 0.5rem;
  }
  .nav-top .mid .nav-top-left .nav-top-back:active {
    color: #b4deff;
  }
  .nav-top .mid .nav-top-left .nav-top-back i {
    font-size: 0.4rem;
    font-weight: 700;
    margin-right: 0.1rem;
  }
  .nav-top .mid .nav-top-right {
    display: none;
  }
  .nav-top .mid .menu-button {
    display: block;
    z-index: 12;
    position: fixed;
    right: 0.44rem;
    top: 0.25rem;
    width: 0.48rem;
    height: 0.44rem;
    background-color: transparent;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    transition: 0.3s;
  }
  .nav-top .mid .menu-button .bar {
    display: block;
    width: 0.48rem;
    height: 0.08rem;
    border-radius: 1rem;
    margin: 0.1rem auto;
    background-color: #fff;
    -webkit-transition: 0.3s;
    transition: 0.3s;
  }
  .nav-top .mid .menu-button .bar:nth-of-type(1) {
    margin-top: 0;
  }
  .nav-top .mid .menu-button .bar:nth-of-type(3) {
    margin-bottom: 0;
  }
  .nav-top .mid .menu-button.cross .bar {
    background-color: #7f7d7d;
  }
  .nav-top .mid .menu-button.cross .bar:nth-of-type(1) {
    transform: rotate(-45deg) translateY(0.12rem) translateX(-0.12rem);
  }
  .nav-top .mid .menu-button.cross .bar:nth-of-type(2) {
    opacity: 0;
  }
  .nav-top .mid .menu-button.cross .bar:nth-of-type(3) {
    transform: rotate(45deg) translateY(-0.14rem) translateX(-0.12rem);
  }
  .nav-top .mid .menu-list {
    z-index: 11;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    padding: 1.3rem 0.25rem;
  }
  .nav-top .mid .menu-list.show {
    display: block;
  }
  .nav-top .mid .menu-list .menu-list-item {
    padding: 0.2rem 0.25rem;
    margin-bottom: 0.36rem;
    border-radius: 0.2rem;
    background-color: rgba(75, 75, 75, 0.52);
    color: #fff;
  }
  .nav-top .mid .menu-list .menu-list-item .tit {
    font-size: 0.34rem;
    font-weight: 700;
    margin-bottom: 0.18rem;
  }
  .nav-top .mid .menu-list .menu-list-item:nth-last-child(1) .links a {
    margin-right: 0.2rem;
    margin-bottom: 0.2rem;
  }
  .nav-top .mid .menu-list .menu-list-item .links a {
    display: inline-block;
    height: 0.6rem;
    line-height: 0.6rem;
    padding: 0 0.36rem;
    background-color: #4b4b4b;
    color: #fff;
    border-radius: 1rem;
    font-size: 0.28rem;
    margin-left: 0.05rem;
  }
  .nav-top .mid .menu-list .menu-list-item .links a:active {
    color: #3c82fc;
  }

  /* 移动端搜索框样式 */
  .nav-top .mid .menu-list .menu-list-item .search {
    margin: 0.3rem 0;
    width: 100%;
  }

  .nav-top .mid .menu-list .menu-list-item .search .input-group {
    width: 100%;
    border-radius: 0.3rem;
    border: 1px solid #3c82fc;
    display: flex;
    align-items: center;
    overflow: hidden;
  }

  .nav-top .mid .menu-list .menu-list-item .search .form-control {
    padding: 0.15rem 0.2rem;
    font-size: 0.24rem;
    flex: 1;
    background-color: rgba(255, 255, 255, 0.9);
    border: none !important;
    outline: none;
    box-shadow: none;
  }

  .nav-top .mid .menu-list .menu-list-item .search .form-control:focus {
    border: none !important;
    outline: none !important;
    box-shadow: none;
  }

  .nav-top .mid .menu-list .menu-list-item .search .input-group-append {
    display: flex;
  }

  .nav-top .mid .menu-list .menu-list-item .search .input-group-append .btn {
    padding: 0.15rem 0.3rem;
    font-size: 0.24rem;
    background-color: #3c82fc;
    color: #fff;
    white-space: nowrap;
    border-width: 0;
  }

  .nav-top .mid .menu-list .menu-list-item:nth-child(2) .links a {
    margin-left: 0.1rem;
    padding: 0 0.29rem;
  }
  .banner .mute-box {
    display: flex;
    position: absolute;
    top: 1.8rem;
    right: 0.5rem;
    transform: scale(1.5);
  }
}
.download-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
}
.download-modal.is-open {
  display: flex;
}
.download-modal .download-mask {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
}
.download-modal .download-card {
  position: relative;
  z-index: 1;
  width: 6.2rem;
  max-width: 92vw;
  padding: 0.3rem 0.3rem 0.36rem;
  border-radius: 0.12rem;
  background: #f4f0e6;
  box-shadow: 0 0.12rem 0.36rem rgba(0, 0, 0, 0.35);
}
.download-modal .download-close {
  position: absolute;
  top: 0.18rem;
  right: 0.18rem;
  width: 0.6rem;
  height: 0.6rem;
  border: 0;
  background: transparent;
  color: #cc2b2b;
  font-size: 0.6rem;
  line-height: 0.6rem;
  cursor: pointer;
}
.download-modal .download-title {
  text-align: center;
  font-size: 0.4rem;
  color: #b01818;
  font-weight: 700;
  margin: 0.06rem 0 0.18rem;
  letter-spacing: 0.02rem;
}
.download-modal .download-desc {
  text-align: center;
  font-size: 0.24rem;
  color: #5b5b5b;
  margin-bottom: 0.22rem;
}
.download-modal .download-row {
  display: flex;
  gap: 0.18rem;
  align-items: center;
}
.download-modal .download-input {
  flex: 1;
  height: 0.56rem;
  border-radius: 0.08rem;
  border: 0.02rem solid #e34b4b;
  padding: 0 0.16rem;
  font-size: 0.22rem;
  outline: none;
  background: #fff;
  color: #333;
}
.download-modal .download-copy {
  width: 1.32rem;
  height: 0.56rem;
  border: 0;
  border-radius: 0.08rem;
  background: #e34b4b;
  color: #fff;
  font-size: 0.2rem;
  cursor: pointer;
}
.img-preview-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.5);
}
.img-preview-modal.is-open {
  display: flex;
}
.img-preview-modal .img-preview-img {
  width: 80%;
  height: auto;
  object-fit: contain;
  display: block;
}