[flex] {
    display: flex;
  }
  [flex][flex~="i"] {
    display: inline-flex;
  }
  [flex][flex~="wrap"] {
    flex-wrap: wrap;
  }
  [flex][flex~="no-wrap"] {
    flex-wrap: nowrap;
  }
  [flex][flex~="ja"] {
    justify-content: space-around;
  }
  [flex][flex~="jb"] {
    justify-content: space-between;
  }
  [flex][flex~="js"] {
    justify-content: flex-start;
  }
  [flex][flex~="jfs"] {
    justify-content: flex-start;
  }
  [flex][flex~="jc"] {
    justify-content: center;
  }
  [flex][flex~="je"] {
    justify-content: flex-end;
  }
  [flex][flex~="jfe"] {
    justify-content: flex-end;
  }
  [flex][flex~="ais"] {
    align-items: flex-start;
  }
  [flex][flex~="aic"] {
    align-items: center;
  }
  [flex][flex~="acc"] {
    align-content: center;
  }
  [flex][flex~="aie"] {
    align-items: flex-end;
  }

.hero {
    position: relative;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    width: 100%;
    height: 100vh;
    height: calc(var(--vh,1vh) * 100);
    min-height: 500px;
    color: #fff
}

.hero__video_wrapper {
    position: absolute;
    width: 100%;
    height: 100vh;
    min-height: 550px;
    overflow: hidden
}

.hero__video_filter {
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: #000;
    opacity: .3;
    z-index: 1
}

.hero__video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    -webkit-transform: translate(-50%,-50%);
    transform: translate(-50%,-50%)
}

.hero__topbanner {
    position: absolute;
    width: 100%;
    height: 100vh;
    height: -webkit-fill-available;
    background-color: #131413;
    background-size: cover;
    background-position: center
}

.hero__body {
    position: relative;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-flow: column;
    flex-flow: column;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    margin-left: auto;
    margin-right: auto;
    padding: 0 20px;
    width: 100%;
    z-index: 1
}

.hero h1,.hero__description {
    color: #fff;
    text-align: center
}

.hero h1 {
    font-size: 110px;
    line-height: 1
}

@media only screen and (max-width: 750px) {
    .hero h1 {
        font-size:50px
    }
}

.hero__description {
    margin-top: 24px;
    margin-right: auto;
    margin-left: auto;
    max-width: 750px;
    font-size: 18px
}

@media only screen and (max-width: 750px) {
    .hero__description {
        margin-top:12px
    }
}

.hero .btn-view-more {
    position: absolute;
    bottom: -70px;
    text-transform: uppercase
}

@media only screen and (max-width: 750px) {
    .hero .btn-view-more {
        bottom:-50px
    }
}

.hero .btn-view-more:hover:after {
    top: 70px
}

@media only screen and (max-width: 750px) {
    .hero .btn-view-more:hover:after {
        top:35px
    }
}

.hero .btn-view-more:after {
    content: '';
    position: absolute;
    top: 60px;
    left: 50%;
    display: block;
    width: 39px;
    height: 10px;
    background-position: center;
    background-repeat: no-repeat;
    background-size: contain;
    background-image: url(../images/arrow_right_white.svg);
    -webkit-transform-origin: center;
    transform-origin: center;
    -webkit-transform: translate(-50%,-50%) rotate(90deg);
    transform: translate(-50%,-50%) rotate(90deg);
    -webkit-transition: all .3s;
    transition: all .3s
}

@media only screen and (max-width: 750px) {
    .hero .btn-view-more:after {
        top:32px;
        width: 26px
    }
}







.about-block-c {
    position: relative;
    padding-top: 5.5%;
    padding-bottom: 7%;
  }
  .about-block-c .about-full-word.top {
    position: absolute;
    left: 0%;
    top: 0;
    width: 100%;
  }
  .about-block-c .top-title .wid-min {
    margin-left: auto;
    margin-right: auto;
    width: 1400px;
    max-width: 100%;
  }
  .about-block-c .top-title .auto-title-block {
    width: 100%;
  }
  .about-block-c .top-title .des {
    margin-top: 9%;
    margin-bottom: 13%;
    width: 540px;
    max-width: 100%;
    font-size: 16px;
    line-height: 1.5em;
  }
  .about-block-c .list {
    --color: #9e825b;
    --on-color: var(--background-color);
    --bg-color: var(--color);
    --top: 40px;
    position: relative;
    margin-left: auto;
    margin-right: auto;
    max-width: 1270px;
  }
  .about-block-c .list::before,
  .about-block-c .list::after {
    content: '';
    position: absolute;
    left: 50%;
    top: var(--top);
    height: calc(100% - var(--top) - 44px);
    width: 1px;
  }
  .about-block-c .list::before {
    background: var(--bg-color);
  }
  .about-block-c .list::after {
    --bg-color: var(--on-color);
    height: 0;
    background: var(--bg-color);
  }
  .about-block-c .list .list-li {
    --bg-color: #9e825b;
    position: relative;
    z-index: 2;
    width: 50%;
  }
  .about-block-c .list .list-li + .list-li {
    margin-top: -20%;
  }
  .about-block-c .list .list-li:nth-child(odd) {
    margin-right: 50%;
    padding-right: 7.87%;
    text-align: right;
  }
  .about-block-c .list .list-li:nth-child(odd) p{
    text-align: left;
  }
  .about-block-c .list .list-li:nth-child(odd) .line-span {
    margin-right: -1px;
    right: 0;
  }
  .about-block-c .list .list-li:nth-child(odd) .point {
    margin-right: -1px;
    right: 0;
    transform: translate(50%, 0);
  }
  .about-block-c .list .list-li:nth-child(odd) .time {
    justify-content: flex-end;
  }
  .about-block-c .list .list-li:nth-child(even) {
    margin-left: 50%;
    padding-left: 7.87%;
    text-align: left;
  }
  .about-block-c .list .list-li:nth-child(even) .line-span {
    left: 0;
  }
  .about-block-c .list .list-li:nth-child(even) .point {
    left: 0;
    transform: translate(-50%, 0);
  }
  .about-block-c .list .list-li.on {
    --bg-color: var(--on-color);
  }
  .about-block-c .list .line-span {
    display: none;
    position: absolute;
    top: 40px;
    width: 1px;
    height: 100%;
    background: var(--bg-color);
  }
  .about-block-c .list .point {
    display: block;
    position: absolute;
    top: var(--top);
    border-radius: 50%;
    border: 1px solid var(--bg-color);
    width: 44px;
    height: 44px;
    background: #ffffff;
  }
  .about-block-c .list .point::before {
    content: "";
    display: block;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    height: 11px;
    width: 11px;
    background: var(--bg-color);
  }
  .about-block-c .list .time {
    justify-content: baseline;
    font-size: 28px;
    line-height: 1.14em;
  }
  .about-block-c .list .time .num {
    margin-right: 12px;
    font-size: 3.1425em;
    line-height: 0.75em;
    letter-spacing: -0.025em;
  }
  .about-block-c .list .list-cont {
    margin: 1.5em 0;
    font-size: 16px;
    line-height: 1.5em;
  }
  .about-block-c .list .list-cont h5{
    font-weight: bold;
    line-height: 2;
    margin-top: 10px;
    overflow: hidden;
    font-size: 26px;
}

  .about-block-c .list .pad {
    width: 100%;
    height: 100px;
  }
  .about-block-c .list .more-btn-box {
    width: 100%;
  }
  .about-block-c .list .more-btn-box .more-btn .self-svg {
    border-radius: 50%;
    width: 44px;
    height: 44px;
    background: var(--background-color);
  }
  .about-block-c .list .more-btn-box .more-btn svg {
    width: 50%;
    height: 50%;
    fill: #ffffff;
  }
  .about-block-c .list .more-btn-box .more-btn:hover .self-svg {
    background: var(--background-hover-color);
  }
  .about-block-c .bot-box {
    position: relative;
  }
  .about-block-c .bot-box .bot {
    margin-top: -0.2em;
    width: 100%;
    justify-content: flex-end;
  }
  .about-block-c .bot-box .bot-word {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translate(0, -50%);
    width: 100%;
    text-align: center;
  }
  @media (max-width: 1500px) {
    .about-block-c .list .time {
      font-size: 22px;
    }
    .about-block-c .list .time .num {
      font-size: 2.4em;
    }
  }
  @media (max-width: 1200px) {
    .about-block-c {
      padding-top: 0.9rem;
      padding-bottom: 0.8rem;
      margin: 0 15px;
    }
    .about-block-c .about-full-word.top {
      top: 0.3rem;
    }
    .about-block-c .top-title .des {
      margin-top: 0.2rem;
      margin-bottom: 0.5rem;
      width: 100%;
      font-size: 0.26rem;
    }
    .about-block-c .list {
      --top: 0px;
    }
    .about-block-c .list::before,
    .about-block-c .list::after {
      left: 0.22rem;
      height: calc(100% - var(--top) - 0.44rem);
    }
    .about-block-c .list .list-li {
      width: 100%;
      padding-left: 0.6rem;
      margin-bottom: 28px;

    }
    .about-block-c .list .list-li + .list-li {
      margin-top: 0.5rem;
    }
    .about-block-c .list .list-li:nth-child(odd) {
      margin-right: 0;
      padding-right: 0;
      text-align: left;
    }
    .about-block-c .list .list-li:nth-child(odd) .line-span {
      margin-right: 0;
      right: auto;
      left: 0;
    }
    .about-block-c .list .list-li:nth-child(odd) .point {
      margin-right: 0;
      right: auto;
      left: 0;
      transform: translate(0, 0);
    }
    .about-block-c .list .list-li:nth-child(odd) .time {
      justify-content: flex-start;
      margin-left: 15px;
    }
    .about-block-c .list .list-li:nth-child(even) {
      margin-left: 0;
      padding-left: 0.6rem;
    }
    .about-block-c .list .list-li:nth-child(even) .point {
      transform: translate(0, 0);
    }
    .about-block-c .list .point {
      width: 3vw;
      height: 3vw;
    }
    .about-block-c .list .point::before {
      height: 1.2vw;
      width: 1.2vw;
    }
    .about-block-c .list .time {
      /* font-size: 0.28rem; */
      margin-left: 15px;
    }
    .about-block-c .list .time .num {
      margin-right: 0.2em;
      font-size: 1.9em;
      line-height: 0.75em;
      letter-spacing: -0.025em;
    }
    .about-block-c .list .list-cont {
      margin: 0.5em 15px 0.5em;
      /* font-size: 0.26rem; */
    }
    .about-block-c .list .list-img{
      margin-left: 15px;
    }
    .about-block-c .list .pad {
      height: 0.3rem;
    }
    .about-block-c .list .more-btn-box {
      justify-content: flex-start;
    }
    .about-block-c .list .more-btn-box .more-btn .self-svg {
      width: 0.5rem;
      height: 0.5rem;
    }
    .about-block-c .bot-box .bot {
      justify-content: flex-start;
    }
    .about-block-c .bot-box .bot-word {
      text-align: left;
    }
  }



  /***标题***/
  .about-full-word {
    white-space: nowrap;
    pointer-events: none;
    font-size: 15.58vw;
    line-height: 0.7em;
    letter-spacing: -0.1em;
    opacity: 0.05;
  }
  @media (min-width: 1921px) {
    .about-full-word {
      font-size: 305px;
    }
  }


  .auto-title-block .auto-title-h2 {
    margin-bottom: 0.2321em;
    font-size: 60px;
    line-height: 0.8em;
    /* font-weight: normal; */
    letter-spacing: -2px;
  }
  .auto-title-block .auto-title-h2.big {
    font-size: 56px;
    line-height: 0.8em;
  }
  .auto-title-block .auto-title-des {
    font-size: 46px;
    font-weight: normal;
    line-height: 1.2em;
  }
  @media (min-width: 1201px) and (max-width: 1600px) {
    /* .auto-title-block .auto-title-h2 {
      font-size: 46px;
    }
    .auto-title-block .auto-title-h2.big {
      font-size: 48px;
    }
    .auto-title-block .auto-title-des {
      font-size: 22px;
    } */
  }
  @media (min-width: 1201px) and (max-width: 1500px) {
    /* .auto-title-block .auto-title-h2 {
      font-size: 34px;
    }
    .auto-title-block .auto-title-h2.big {
      font-size: 40px;
    }
    .auto-title-block .auto-title-des {
      font-size: 18px;
    } */
  }
  @media (max-width: 1200px) {
    .auto-title-block .auto-title-h2 {
      font-size: 50px;
      /* line-height: 0.8em; */
    }
    .auto-title-block .auto-title-h2.big {
      font-size: 0.5rem;
      line-height: 0.8em;
    }
    .auto-title-block .auto-title-des {
      font-size: 38px;
      /* line-height: 1.2em; */
    }
  }
  .auto-title-block-b {
    font-size: 36px;
    line-height: 1.1em;
  }
  .auto-title-block-b .auto-title-des {
    color: #cccccc;
  }
  @media (min-width: 1201px) and (max-width: 1600px) {
    .auto-title-block-b .auto-title-h2 {
      font-size: 40px;
    }
    .auto-title-block-b .auto-title-h2.big {
      font-size: 48px;
    }
    .auto-title-block-b .auto-title-des {
      font-size: 22px;
    }
  }
  @media (min-width: 1201px) and (max-width: 1500px) {
    .auto-title-block-b .auto-title-h2 {
      font-size: 34px;
    }
    .auto-title-block-b .auto-title-h2.big {
      font-size: 40px;
    }
    .auto-title-block-b .auto-title-des {
      font-size: 18px;
    }
  }
  @media (max-width: 1200px) {
    .auto-title-block-b .auto-title-h2 {
      font-size: 0.4rem;
      line-height: 0.8em;
    }
    .auto-title-block-b .auto-title-h2.big {
      font-size: 0.5rem;
      line-height: 0.8em;
    }
    .auto-title-block-b .auto-title-des {
      font-size: 0.3rem;
      line-height: 1.2em;
    }
  }
  .auto-title-block-c {
    font-size: 36px;
    line-height: 1.2em;

  }
  .auto-title-block-c .auto-title-des {
    color: #cccccc;
  }
  @media (min-width: 1201px) and (max-width: 1500px) {
    .auto-title-block-c {
      font-size: 32px;
    }
  }
  @media (max-width: 1200px) {
    .auto-title-block-c {
      font-size: 0.4rem;
      line-height: 1.3em;
    }
  }
  .auto-title-block-d {
    font-size: 20px;
    line-height: 1.4em;
  }
  .auto-title-block-d .auto-title-h2-box {
    border-bottom: 1px solid #dddddd;
  }
  .auto-title-block-d .auto-title-h2 {
    position: relative;
    padding-bottom: 27px;
  }
  .auto-title-block-d .auto-title-h2::after {
    content: "";
    display: block;
    position: absolute;
    left: 0;
    bottom: -1px;
    height: 3px;
    width: 100%;
    background: #c39d5b;
  }
  @media (max-width: 1600px) {
    .auto-title-block-d {
      font-size: 18px;
    }
    .auto-title-block-d .auto-title-h2 {
      padding-bottom: 15px;
    }
  }
  @media (max-width: 1200px) {
    .auto-title-block-d {
      font-size: 0.32rem;
      line-height: 1.3em;
    }
    .auto-title-block-d .auto-title-h2 {
      padding-bottom: 0.5em;
    }
  }