body,
p {
    margin: 0;
}

img,
a {
    display: block;
}

a,
a:hover,
a:link {
    text-decoration: none;
    color: black;
}

video {
    object-fit: fill;
    display: block;
    border: none;
}

input {
    outline: none;
}

.text_center {
    text-align: center;
}

.text_right {
    text-align: right;
}

.text_left {
    text-align: left;
}

.this_color {
    color: #00479d!important;
}

.colorw {
    color: white;
}

.display {
    display: none!important;
}

.fb {
    font-weight: bold;
}

.font12 {
    font-size: 12px;
}

.font14 {
    font-size: 14px;
}

.font15 {
    font-size: 15px;
}

.font16 {
    font-size: 16px;
}

.font18 {
    font-size: 18px;
}

.font20 {
    font-size: 20px;
}

.font24 {
    font-size: 24px;
}

.font40 {
    font-size: 40px;
}

.font55 {
    font-size: 55px;
}

.font60 {
    font-size: 60px;
}

.font100 {
    font-size: 100px;
}

.color333 {
    color: #333333;
}

.felx_b {
    display: flex;
    justify-content: space-between;
}

.felx_e {
    display: flex;
    justify-content: space-evenly;
}

.felx_a {
    display: flex;
    justify-content: space-around;
}

.felx_c {
    display: flex;
    justify-content: center;
}

.felx_r {
    display: flex;
    justify-content: end;
}

.align_center {
    align-items: center;
}

.w1200 {
    width: 1200px;
}

.ma {
    margin: auto;
}

.top {
    position: relative;
}

.top_nav {
    width: 400px;
    height: 87px;
}

.switch_nav {
    width: 100%;
    position: absolute;
    top: 87px;
    z-index: 9;
    height: 60px;
    background-color: #ffffff50;
    display: none;
}

.xiala,
.top_nav a {
    position: relative;
    cursor: pointer;
    width: 80px;
    text-align: center;
    height: 100%;
    line-height: 87px;
}

.top_nav a:hover,
.xiala:hover {
    color: #00479d;
}

.xiala_row {
    position: absolute;
    width: 400%;
    top: 70px;
    z-index: 10;
    left: calc(-150%);
    display: flex;
    font-size: 16px;
}

.xiala_item {
    width: auto!important;
    color: black;
}

.xiala_item:hover {
    color: #00479d!important;
}

.index_s2 {
    padding: 140px 0;
}

.index_switch {
    margin-top: 100px;
}

.index_switch .swiper-container-free-mode>.swiper-wrapper {
    transition-timing-function: linear;
    margin: 0 auto;
}

.index_switch img {
    max-width: 100%;
}

.foot {
    width: 100%;
    background-color: #323334;
    padding: 50px 0;
}

.foot_item {
    letter-spacing: 2px;
}

.code {
    margin-left: 20px;
    margin-right: 20px;
}

.code img {
    margin-bottom: 15px;
}

.code div {
    margin: 0;
}

.foot_title {
    margin-bottom: 30px!important;
}

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

.p_v1,
.j_v1 {
    position: absolute;
    z-index: 2;
    top: 0;
    left: 0;
}

.switch_car,
.switch_plane {
    width: 100%;
}


/* 分页器的颜色 */

#car,
#plane {
    --swiper-pagination-color: white;
}

.p_s1 {
    width: 100%;
    padding: 100px 0;
}

.p_grow {
    width: 800px;
    display: grid;
    grid-template-columns: repeat(3, 31%);
    grid-column-gap: 3.5%;
    grid-row-gap: 40px;
    margin-top: 80px;
}

.p_gitem {
    width: 100%;
    display: inline-grid;
}

.p_gitem img {
    margin-top: 20px;
}

.pn_grow {
    width: 980px;
    display: grid;
    grid-template-columns: repeat(4, 22%);
    grid-column-gap: 4%;
    grid-row-gap: 40px;
    margin-top: 80px;
}

.dload_row {
    width: 965px;
    padding: 0 40px;
    box-sizing: border-box;
    border: 1px solid #808080;
    margin-top: 100px;
}

.dload_item {
    cursor: pointer;
    margin: 20px auto;
}

.video_controls {
    position: absolute;
    z-index: 1;
    width: 181px;
    bottom: 265px;
    right: 180px;
}

.video_controls_none {
    position: absolute;
    z-index: 2;
    width: 181px;
    bottom: 265px;
    right: 180px;
}

.go_next {
    position: absolute;
    z-index: 1;
    width: 25%;
    height: 15%;
    bottom: 25%;
    left: 10%;
    background-color: transparent;
    cursor: pointer;
}

.video_controls img,
.video_controls_xf2 img,
.video_controls_xf3 img {
    cursor: pointer;
}

.x_v1 {
    position: absolute;
    z-index: 3;
    top: 0;
    left: 0;
}

.x_v2 {
    position: absolute;
    z-index: 2;
    top: 0;
    left: 0;
}

.video_controls_null {
    position: absolute;
    z-index: 3;
    width: 181px;
    bottom: 265px;
    right: 180px;
}

.video_controls_xf2 {
    position: absolute;
    z-index: 2;
    width: 181px;
    bottom: 265px;
    right: 180px;
}

.video_controls_xf3 {
    position: absolute;
    z-index: 1;
    width: 181px;
    bottom: 265px;
    right: 180px;
}

.bf_v2 {
    position: absolute;
    z-index: 2;
    width: 25%;
    height: 15%;
    bottom: 25%;
    left: 8%;
    background-color: transparent;
    cursor: pointer;
}

.bf_v3 {
    position: absolute;
    z-index: 2;
    width: 25%;
    height: 15%;
    bottom: 20%;
    left: 38%;
    background-color: transparent;
    cursor: pointer;
    display: none;
}

.about_s2 {
    position: relative;
}

.about_s2_content {
    position: absolute;
    width: 217px;
    height: 217px;
    background-color: #f0f0f1;
    top: calc(50% - 100px);
    left: calc(50% + 190px);
}

.about_s2_title {
    margin-top: 50px;
    margin-left: 50px;
}

.about_s2_text {
    margin-top: 20px;
    margin-left: 50px;
}

.about_s2_text div {
    white-space: nowrap;
    margin-bottom: 10px;
}

.ry_switch {
    padding: 60px 0 135px;
    margin-top: 30px;
}


/* .ry_switch .swiper-slide-active,
.swiper-slide-duplicate-active {
    transform: scale(1.1);
} */

#ry .swiper-slide {
    font-size: 18px;
    background: #fff;
    transition: 300ms;
    transform: scale(0.8);
}

.s_content {
    margin-top: 40px;
}

.s_content div:last-child {
    margin-top: 10px;
}

#ry .swiper-slide-active,
#ry .swiper-slide-duplicate-active {
    transform: scale(1);
}

#ry .swiper-button-prev,
#ry .swiper-button-next {
    display: none;
}

.sitch_btn {
    transform: scale(1.2);
    cursor: pointer;
    margin: 0 45px;
    margin-bottom: 40px;
}

#history_swiper {
    position: relative;
    font-size: 129px;
}

.time_contorls {
    width: 100%;
    height: 900px;
    position: absolute;
    top: 0;
    z-index: 3;
    display: none;
}

#history_swiper::before {
    content: "致力于成为全球领先的";
    position: absolute;
    z-index: 0;
    top: calc(50% - 195px);
    left: calc(50% - 695px);
    color: rgb(247, 247, 247);
    font-weight: bold;
    letter-spacing: 10px;
}

#history_swiper::after {
    content: "超低空5G数字化服务商";
    position: absolute;
    z-index: 0;
    bottom: calc(50% - 195px);
    left: calc(50% - 724.5px);
    color: rgb(247, 247, 247);
    font-weight: bold;
    letter-spacing: 10px;
}

.s_stitle {
    position: relative;
}

.s_stitle::before {
    content: "发展历程";
    position: absolute;
    top: 15%;
    font-size: 55px;
    font-weight: bold;
    color: #333333;
    line-height: 1;
    left: calc(50% - 80px);
}

.history .swiper-slide {
    position: relative;
    flex-shrink: 0;
    min-width: 300px;
    min-height: 915px!important;
    display: flex;
    align-items: center;
    flex-direction: column;
    justify-content: center;
}

.bottom_slide {
    justify-content: flex-start!important;
}

.top_slide {
    justify-content: flex-end!important;
}

.history_tiem {
    color: #00479d;
    font-weight: bold;
    line-height: 1;
    font-size: 45px;
    text-align: center;
    width: 100%;
    background-color: white;
}

.history_line {
    position: absolute;
    width: 100%;
    height: 4px;
    background-color: #646464;
    top: calc(50% - 2px);
}

.swiper-slide:last-child .history_line {
    width: 50%;
    left: 0;
}

.history_point {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: white;
    border: 4px solid #00479d;
    position: absolute;
    left: calc(50% - 10px);
    top: calc(50% - 9.5px);
    box-sizing: border-box;
    z-index: 3;
}

.bottom_month {
    text-align: center;
    font-size: 30px;
    line-height: 1;
    color: #656766;
    font-weight: bold;
    text-align: center;
    position: absolute;
    top: calc(50% + 45px);
    z-index: 3;
}

.bottom_content {
    width: 150%;
    color: #313333;
    background-color: #ffffff00;
    position: absolute;
    top: calc(50% + 105px);
    z-index: 1;
}

.top_month {
    text-align: center;
    font-size: 30px;
    line-height: 1;
    color: #656766;
    font-weight: bold;
    position: absolute;
    top: calc(50% - 75px);
    z-index: 3;
}

.top_content {
    width: 150%;
    color: #313333;
    background-color: #ffffff00;
    position: absolute;
    top: calc(50% - 147px);
    z-index: 1;
}

.bottom_content:hover,
.top_content:hover {
    transition: 0.2s;
    transform: scale(1.1);
}

.join_us {
    padding: 193px 0;
}

.join_search {
    width: 965px;
    border: 1px solid #cccbcb;
    border-radius: 10px;
    margin: 85px auto 0px;
    background-color: #fafafa;
}

#zhiwei {
    height: 55px;
    width: calc(100% - 47px);
    padding-left: 40px;
    box-sizing: border-box;
    border: none;
    border-radius: 10px;
    background-color: #fafafa;
}

.search_icon {
    width: 47px;
    border-radius: 10px;
    line-height: 30px;
    cursor: pointer;
    background-color: #fafafa;
}

.fa-search {
    font-weight: lighter;
    color: #999999;
    font-size: 20px!important;
}

.xf_nav {
    width: 110px;
    padding: 10px 5px;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 35%;
    background-color: white;
    box-shadow: 0px 0px 10px #898989;
    border-radius: 0 15px 15px 0;
}

.xf_line {
    width: 40%;
    height: 2px;
    background-color: #000000;
}

.xf_item {
    text-align: center;
    padding: 15px 0;
    cursor: pointer;
}

.line_height {
    line-height: 1;
    margin-bottom: 20px;
}

@media screen and (min-width:2540px) {
    .history .swiper-slide {
        min-height: 1100px!important;
    }
}