.banner_width {
    width: 1336px;
    margin: auto;
}

.banner_title {
    font-size: 42px;
    font-weight: normal;
    font-stretch: normal;
    letter-spacing: 0px;
    color: #333333;
    text-align: center;
}

.banner_i {
    width: 50px;
    height: 2px;
    background: #e7290f;
    display: block;
    margin: 40px 0;
}

.banner_block {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.banner_exp {
    width: 950px;
    line-height: 24px;
    color: #666666;
    font-size: 16px;
    text-align: center;
    margin-top: 24px;
}


.intro {
    height: 660px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.intro_m {
    width: 1340px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.intro_t {
    font-weight: 500;
    color: #333333;
    font-size: 40px;
}

.intro_child_t {
    margin-top: 32px;
    color: #333333;
    font-size: 24px;
}

.intro_exp {
    margin-top: 16px;
    width: 660px;
    color: #333333;
    font-size: 14px;
    letter-spacing: 1px;
    line-height: 24px;
    text-align: justify;
}

.intro_m img {
    width: 600px;
}

.solution {
    padding: 72px 0 100px 0;
    display: flex;
    align-items: center;
    flex-direction: column;
}

.solution_exp {
    color: #666666;
    font-size: 16px;
    margin: 24px 0 50px;
}

.solution img {
    width: 1144px;
}

.compose {
    background-color: #23243b;
    padding: 72px 0 18px 0;
    display: flex;
    align-items: center;
    flex-direction: column;
}

.compose img {
    width: 1425px;
    margin-top: 36px;
}

.carrier {
    padding: 100px 0;
}

.equipment {}

.savesystem {
    padding: 98px 0 0 0;
}

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

.savesystem_left {
    height: 350px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.savesystem_item {
    display: flex;
    align-items: center;
    position: relative;
}

.savesystem_item_t {
    width: 90px;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.savesystem_item_t img {
    width: 100%;
}

.savesystem_item_t span {
    line-height: 20px;
    color: #ffffff;
    font-size: 16px;
    text-align: center;
    position: absolute;
    width: 34px;
}

.savesystem_item_exp {
    width: 520px;
    color: #666666;
    font-size: 16px;
    line-height: 22px;
    margin-left: 24px;
}

.savesystem_img {
    width: 658px;
}

.environment {
    padding: 72px 0 70px 0;
    background: #fcfcfc;
}

.environment img {
    width: 100%;
}

.scene {
    padding: 100px 0 98px 0;
    display: flex;
    align-items: center;
    flex-direction: column;
}

.scene_m {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 1216px;
    height: 550px;
    position: relative;
}

.scene_tab {
    width: 208px;
    color: #333333;
    font-size: 20px;
}

.scene_tab li {
    height: 76px;
    display: flex;
    align-items: center;
    cursor: context-menu;
}

.scene_tab_active {
    color: #e7290f;
    position: relative;
    transition: all .3s;
}

.scene_tab_active::before {
    content: '';
    position: absolute;
    height: 32px;
    width: 2px;
    background-color: #e7290f;
    left: -32px;
    transition: all .3s;
}

.scene_content {
    position: relative;
    height: 100%;
    width: 953px;
}

.scene_panel {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.scene_panel_active {
    opacity: 1;
    transition: all .3s;
}

.scene_panel img {
    width: 645px;
}

.scene_panel_items {
    width: 196px;
}

.scene_panel_item {
    margin-bottom: 20px;
}

.scene_panel_item_t {
    width: 196px;
    height: 62px;
    background: #e7290f;
    border-radius: 8px 8px 0px 0px;
    color: #ffffff;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.scene_panel_item_exp{
    width: 196px;
    height: 68px;
    background: rgba(245, 245, 245, 0.5);
    border-radius: 0px 0px 8px 8px;
    color:#333333;
    font-size:14px;    
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}
.scene_panel_item_exp span{
    width:176px;
    display: flex;
    align-items: center;
    justify-content: start;
}
.scene_panel_item_exp span i{
    display: block;
    width: 4px;
    height: 4px;
    background-color: black;
    border-radius: 100%;
    margin-right: 8px;
}