body {
    margin: 0px;
    padding: 0px;
    height: auto;
}
html {
    scroll-behavior: smooth;
    height: auto;
}
.body {
    background-color: #000;
    position: relative;
    font-weight: 300;
}

/* nav section start */
.nav {
    position: fixed;
    top: -68px;
    width: 100%;
    background-color: #111;
    height: 68px;
    z-index: 9999;
    overflow: hidden;
    transition: 200ms ease-in-out top;
    border-bottom: 0.5px solid #000;
    user-select: none;
}
.navBox {
    width: 90%;
    max-width: 1280px;
    height: 68px;
    margin: 0 auto;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}
.navLogo {
    padding: 10px 0px;
    height: 48px;
    width: 112px;
    background-image: url(./mzImg/meizhen_Logoset_heng.png);
    background-position: center;
    background-repeat: no-repeat;
    background-size: contain;
}
.navLogo img {
    height: 48px;
}
.menu {
    height: 48px;
    width: 60px;
    padding: 10px 0px;
    color: #aaa;
    display: flex;
    line-height: 48px;
    cursor: pointer;
    transition: 200ms ease-in-out all;
    user-select: none;
}
.menu svg {
    width: 24px;
    height: 24px;
    padding: 12px 5px 12px 0px;
    display: inline-block;
}
.menu:hover {
    color: #eee;
    transition: 200ms ease-in-out all;
}


.mainPage {
    top: 0px;
    left: 0px;
    width: 100%;
    margin: 0px;
    padding: 0px;
    background-color: #000;
    z-index: 1;
    position: relative;
}
.bgBox {
    top: 0px;
    left: 0px;
    width: 100%;
    margin: 0px;
    padding: 0px;
    position: relative;
}
.bg {
    width: 100%;
    height: 100%;
    background-image: url(./mzImg/bg.png);
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    opacity: .2;
}
.light {
    width: 100%;
    height: 100%;
    background-image: url(./mzImg/light.png);
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    opacity: .4;
}
.rect {
    width: 100%;
    height: 100%;
    background-image: url(./mzImg/rectangle.png);
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    opacity: .5;
}
.halo {
    width: 100%;
    height: 100%;
    background-image: url(./mzImg/halo.png);
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    opacity: .5;
}
.heroPart {
    position: absolute;
    z-index: 999;
    width: 100%;
    height: 100%;
    top: 0px;
    text-align: center;
}
.logoBox {
    position: absolute;
    width: 100px;
    left: 50%;
    margin-left: -50px;


}
.logoBox img {
    width: 100%;
}
.heroWord {
    width: 100%;
    display: block;
    box-sizing: border-box;
    padding-top: 320px;
    text-align: center;
    font-weight: bold;
    font-size: 48px;
    color: #fff;
}
.heroWord .first {
    text-decoration: underline;
    text-decoration-style: solid;
    text-underline-offset: 20px;
    text-decoration-color: #B33DEA;
}
.heroWord .second {
    text-decoration: underline;
    text-decoration-style: solid;
    text-underline-offset: 20px;
    text-decoration-color: #3D55EA;
}
.heroWord .thired {
    text-decoration: underline;
    text-decoration-style: solid;
    text-underline-offset: 20px;
    text-decoration-color: #3DCBEA;
}
.heroWord .small {
    font-size: 36px;
}
.scrollButtonBox {
    position: absolute;
    bottom: 0px;
    height: 60px;
    width: 100%;
    color: #fff;
}
.scrollButton {
    width: 60px;
    height: 60px;
    cursor: pointer;
    margin: 0 auto;
}
.scrollButton .scrollIcon {
    width: 24px;
    height: 24px;
    transition: all;
    animation: bounce 1s infinite;
}

.page2 {
    border-radius: 20px 20px 0px 0px;
    z-index: 999;
    background-color: #111;
    width: 90%;
    max-width: 1280px;
    position: relative;
    margin: 0 auto;
}
.infoText {
    display: block;
    width: 80%;
    max-width: 1024px;
    margin: 0 auto;
    text-align: center;
    color: #eee;
    font-size: 18px;
    line-height: 30px;
    padding: 50px 0;
}
.foot {
    width: 100%;
    background: #222;
    height: 64px;
    line-height: 64px;
}
.footWord {
    text-align: center;
    width: 90%;
    max-width: 1280px;
    margin: 0 auto;
    color: #777;
    font-size: 13px;
}

.footWord a:link, .footWord a:visited {
    font-size: 13px;
    color: #777;
    text-underline-offset: 4px;
}
.footWord a:hover, .footWord a:active {
    color: #999;
}



@keyframes bounce {
    0%, 100% {
      transform: translateY(-25%);
      animation-timing-function: cubic-bezier(0.8, 0, 1, 1);
    }
    50% {
      transform: translateY(0);
      animation-timing-function: cubic-bezier(0, 0, 0.2, 1);
    }
  }