* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-weight: normal;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
}

body {
    background-color: #000000;
    overflow-x: hidden;
    -webkit-tap-highlight-color: transparent;
}

:root {
}

/* 去掉li 的小圆点 */
li {
    list-style: none;
}

img {
    /* border 0 照顾低版本浏览器 如果 图片外面包含了链接会有边框的问题 */
    border: 0;
    /* 取消图片底侧有空白缝隙的问题 */
    vertical-align: middle;
}

a {
    color: #fff;
    text-decoration: none;
}

input:focus {
    outline: none;
}

input:-internal-autofill-selected {
    background-color: #272727 !important;
}

/* 设置滚动条的样式 */
::-webkit-scrollbar {
    width: 4px;
    height: 2px;
}

/* 滚动槽 */
::-webkit-scrollbar-track {
    display: none;
    border-radius: 10px;
}

::-webkit-scrollbar-button {
    display: none;
}

/* 滚动条滑块 */
::-webkit-scrollbar-thumb {
    background: #272727;
}

::-webkit-scrollbar-thumb:window-inactive {
    /* background:rgba(255,0,0,0.4); */
}

/*base_win*/
.w_1024 {
    max-width: 1024px;
    margin: 0 auto;
}

.w_1440 {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 30px;
}

.w_1920 {
    max-width: 1920px;
    margin: 0 auto;
}

.container {
    min-height: 50vh;
}

/* theme_btn */
.theme_btn {
    background-color: #88bb42;
    color: #FFF;
    border-radius: 10px;
}

/*header*/
header {
    position: fixed;
    z-index: 999;
    top: 0;
    left: 0;
    width: 100%;
    padding: 50px;
    color: #FFF;
    transition: .3s ease;
    transition-property: padding, background-color;
    background-image: linear-gradient(180deg, #141C25, transparent);
    /*background-color: #000000;*/
}

/* part_header */
.part_header {
    position: relative;
}

.part_header_bg_title {
    font-size: 80px;
    color: #FFF;
    opacity: 0.1;
    margin-left: -50px;
}

.part_header_bg_title > span {
    font-size: 300px;
    line-height: 260px;
}

.part_header_fg_title {
    position: absolute;
    font-size: 34px;
    top: 140px;
    color: #FFF;
}

/* 存在 active_mobile 为移动端显示nav*/
header.active {
    padding: 25px;
    background-color: #000000;
    background-image: linear-gradient(180deg, #000000, transparent);
}


.header_main {
    display: flex;
    align-items: center;
    justify-content: space-between;
}


.header_mobile_nav_btn {
    position: fixed;
    right: 0;
    top: 0;
    display: none;
    background-color: #88bb42;
    width: 52px;
    height: 52px;
    transition: height .3s ease;
}

.header_mobile_nav_btn > p {
    position: absolute;
    width: 24px;
    height: 2px;
    background-color: #FFF;
    top: 50%;
    left: 50%;
    transform: translate3d(-50%, -50%, 0);
    opacity: 1;
    transition: background-color .3s ease;
}

.header_mobile_nav_btn > p:after {
    content: '';
    width: 100%;
    height: 2px;
    background-color: #FFF;
    position: absolute;
    top: -8px;
    transition: transform .3s ease;
}

.header_mobile_nav_btn > p:before {
    content: '';
    width: 100%;
    height: 2px;
    background-color: #FFF;
    position: absolute;
    bottom: -8px;
    transition: transform .3s ease;
}

header.active_mobile .header_mobile_nav_btn {
    height: 100%;
}

header.active_mobile .header_mobile_nav_btn > p {
    background-color: transparent;
}

header.active_mobile .header_mobile_nav_btn > p:after {
    transform: translate3d(0, 8px, 0) rotate(45deg);
}

header.active_mobile .header_mobile_nav_btn > p:before {
    transform: translate3d(0, -8px, 0) rotate(-45deg);
}

.logo_title {
    font-size: 34px;
}

.h_nav_list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}

.h_nav_item {
    margin: 5px 20px;
    padding: 0 10px;
    display: flex;
    align-items: center;
}

.h_nav_item:hover > a {
    color: #88BB42;
    opacity: 1;
}

.h_nav_item.active > a {
    color: #88BB42;
    opacity: 1;
    border-bottom: 1px solid #88BB42;
}

.h_nav_item > img {
    width: 20px;
    height: 20px;
    margin-right: 5px;
}

.h_nav_item > a {
    display: flex;
    align-items: center;
    opacity: 0.4;
    letter-spacing: 1px;
    transition: .3s ease;
    transition-property: opacity, color;
}

/*footer*/
footer {
    width: 100%;
}

.footer_part_item {
    position: relative;
    width: 100%;
}

.footer_slogan {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    width: 100%;
    height: 240px;
    color: #FFF;
    letter-spacing: 2px;
}

.footer_slogan > img {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.4;
}

.footer_slogan > h2 {
    position: relative;
    font-size: 28px;
    padding-bottom: 12px;
    text-align: center;
}

.footer_slogan > p {
    position: relative;
    font-size: 18px;
}

.footer_part_nav {
    display: flex;
    justify-content: space-between;
    margin: 120px auto;
    letter-spacing: 1px;
}

.footer_nav_item {
    position: relative;
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.footer_logo {
    position: absolute;
    right: 30px;
    top: 0;
    color: #FFF;
}

.footer_nav_item > a, .footer_nav_item > p {
    color: #999;
}

.footer_nav_list.contact_nav_list {
    flex: 1;
    margin-left: 20%;
}

.footer_nav_list_other {
    display: flex;
    justify-content: flex-end;
    flex-direction: column;
}

.footer_nav_list_other > .footer_nav_item {
    align-items: end;
    justify-content: end;
}

.footer_nav_list_other > .footer_nav_item > a, .footer_nav_list_other > .footer_nav_item > p {
    font-size: 14px;
}

/* mobile */
@media screen and (max-width: 767px) {
    /*header*/
    header {
        padding: 12px 20px;
    }

    header.active {
        padding: 12px 20px;
    }

    .logo_title {
        font-size: 24px;
    }

    .header_mobile_nav_btn {
        display: block;
    }

    .header_l {
        position: relative;
        z-index: 1;
    }

    .header_l > h1 {
        font-size: 24px;
    }

    .header_r {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: #000;
        display: flex;
        align-items: center;
        transform: translate3d(0, -100%, 0);
        opacity: 0;
        transition: .3s ease;
        transition-property: transform, opacity;
        pointer-events: none;
        background-color: #000;
    }

    header.active_mobile .header_r {
        pointer-events: unset;
        transform: translate3d(0, 0%, 0);
        opacity: 1;
    }

    .h_nav_list {
        width: 100%;
        flex-direction: column;
    }

    .h_nav_item {
        width: 100%;
        padding: 12px 0 12px 30px;
        margin: 0;
    }

    .h_nav_en_cn {
        position: absolute;
        bottom: 90px;
    }

    /*footer*/
    .footer_slogan {
        height: 133px;
    }

    .footer_slogan > h2 {
        font-size: 20px;
    }

    .footer_slogan > p {
        font-size: 14px;
    }

    .footer_logo {
        top: 0;
        left: 30px;
    }

    .footer_part_nav {
        flex-direction: column;
        flex-wrap: wrap;
        padding: 50px 30px 0 30px;
        margin: 80px 0 50px 0;
    }

    .footer_nav_list {
        padding: 25px 0 15px 0;
        border-bottom: 1px solid #333333;
    }

    .footer_nav_list.contact_nav_list {
        margin-left: 0;
    }

    .footer_nav_list:last-child {
        border-bottom: none;
    }

    .footer_nav_item {
        margin-bottom: 10px;
    }

    .footer_nav_list_other > .footer_nav_item {
        justify-content: flex-start;
    }

    /* part_header_bg_title */
    .part_header_fg_title {
        font-size: 24px;
        top: 68px;
    }

    .part_header_bg_title {
        font-size: 43px;
        margin-left: 0;
    }

    .part_header_bg_title > span {
        font-size: 160px;
        line-height: 130px;
    }
}