.container {
    width: 100%;
}
img {
    width: 90%;
    max-width: 75rem;
}
.m_menu {
    display: none;
    margin-left: .8rem;
}
.m_auto_hide_item {
    display: inline;
}
h2,
p {
    padding: 0 .7rem;
}

/* m_menu_dlg */
.m_menu_dlg {
    position: fixed;
    top: 0;
    left: -50vw;
    width: 45vw;
    height: 100vh;
    background-color: #fafaf9;
    z-index: 100;
    transition: left .3s ease;
    box-shadow: 0 0 1rem rgba(0, 0, 0, .3);
}
.m_menu_dlg .m_menu_close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    width: 1.5rem;
    height: 1.5rem;
    cursor: pointer;
    border-radius: 1rem;
    border: .2rem solid #ccc;
    text-align: center;
    color: #ccc;
    /*  清楚文字默认行为 */
    user-select: none;
}
.m_menu_dlg .m_menu_items {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 5rem;
    padding: 0 1.5rem;
}

div.m_menu_dlg_active {
    left: 0;
}


/* bannerBox */
.container .bannerBox {
    /* background: linear-gradient(135deg, #3a86ff 0%, #5e60ce 100%); */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    padding: 5rem 0 0;
    text-align: center;
    background-color: #fafaf9;
}

.container .bannerBox .title,
.container .bannerBox .desc,
.container .bannerBox .btnGround {
    margin-bottom: 2rem;
    color: #333333;
}

.container .bannerBox .title {
    font-size: 2.8rem;
}

.container .bannerBox .desc {
    font-size: 1.2rem;
}
.bannerBox .bannerLogo {
    width: 15.25rem;
    margin-bottom: .9rem;
}
.bannerBox .descphotot {
    margin-top: 40px;
    box-shadow: 0 0 40px #DDD9F3;
    border-radius: 1rem;
    border: .75rem solid #fff;
}
.bannerBox .btnGround {
    position: relative;
}

.bannerBox .btnGround .btn {
    background: linear-gradient(to right, #FF6027, #FF06A0);
    display: inline-block;
    color: #fff;
    transition: all .5s ease;
    font-size: .9rem;
}
.bannerBox .icon-arrow{
    display: inline-block;
    width: .5rem;
    height: .5rem;
    border-left: 2px solid #fff;
    border-bottom: 2px solid #fff;
    transform: rotate(-45deg) translateY(-0.2rem);
    transform-origin: center;
    margin-left: .5rem;
    transition: all .3s;
}
.bannerBox .btn:hover {
    box-shadow: 0 0 .75rem rgba(107, 107, 107, .3);
}
.bannerBox .btn:hover>.icon-arrow {
    transform: rotate(135deg) translateY(.2rem);
}
.bannerBox .btnGround:hover > .downMenu {
    height: auto;
}

.bannerBox .downMenu {
    height: 0;
    width: 100%;
    display: flex;
    row-gap: 8px;
    flex-direction: column;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    background-color: #fff;
    box-shadow: 0 .75rem 2rem rgba(255, 0, 60, .16);
    border-radius: .75rem;
    overflow: hidden;
    z-index: 100;
    transition: height .3s ease;
}
.bannerBox .downMenu a {
    padding: .8rem;
    font-size: .8rem;
}
.bannerBox .downMenu a:hover {
    background-color: #f9f9f9;
}
.bannerBox .downMenu span {
    display: flex;
    align-items: center;
    font-size: .8rem;
    color: #333;
}
.bannerBox .downMenu img {
    width: 1rem;
    height: 1rem;
    margin-right: .5rem;
}
.bannerBox .downMenu p {
    margin-top: .2rem;
    font-size: .7rem;
    text-indent: 1.6rem;
    color: #666;
}


/* intro_base */
.intro_base {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 5rem 0 0;
    text-align: center;
}

.intro_base h2 {
    max-width: 1200px;
    margin: 0 auto 2rem;
    font-size: 2.5rem;
}

.intro_base p {
    max-width: 1200px;
    margin: 0 auto 3rem;
    font-size: 1rem;
    line-height: 1.6;

}


/* intro_ai */
.intro_ai {
    background: #494766 url('/img/floor2_bg.svg') no-repeat 0 0/ 100% 100%;
    color: #fff;
}

.intro_ai img {
    margin-bottom: 7.5rem;
}


/* intro_new_table */
.intro_new_table {
    background: #fafaf9 url('/img/floor3_bg.png') no-repeat 0 0/ 100% 100%;
    color: #333;
}

.intro_new_table img {
}


/* intro_vision 界面 */
.intro_vision {
    background: linear-gradient(to bottom right, #CB5DE2, #F57E2F);
    color: #fff;
}

.intro_vision .slideBox {
    position: relative;
    display: flex;
    justify-content: center;
    width: 100%;
    overflow: hidden;
    /* perspective: 1000px; */
}

.intro_vision .slideItems {
    position: relative;
    width: 100%;
    height: 100vh;
    max-width: 33rem;
    max-height: 20rem;
    transform-style: preserve-3d;
    transform-origin:center center;
    transform: rotateY(0deg);
    transition: transform .5s ease;
}

.intro_vision img {
    position: absolute;
    left: 0;
    top: 0;
    max-width: 33rem;
    border-radius: 1.25rem;
}

.intro_vision img:nth-child(1) {
    transform: rotateY(0deg) translateZ(33rem);
}

.intro_vision img:nth-child(2) {
    transform: rotateY(60deg) translateZ(33rem);
}
.intro_vision img:nth-child(3) {
    transform: rotateY(120deg) translateZ(33rem);
}

.intro_vision .slideDots {
    position: absolute;
    left: 50%;
    bottom: 1rem;
    transform: translate(-50%, 0);
    display: flex;
    justify-content: center;
    margin-top: 1.5rem;
    transition: width .3s ease;
}

.intro_vision .slideDots span {
    width: 1rem;
    height: 1rem;
    border-radius: 1rem;
    background-color: rgba(255, 255, 255, .5);
    margin: 0 .5rem;
    cursor: pointer;
    transition: all .3s ease;
}

.intro_vision .slideDots span.active {
    width: 1.5rem;
    background-color: #fff;
}


/* news */
.news {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 5rem 0;
    background-color: #fafaf9;
}

.news h2 {
    font-size: 2.5rem;
    max-width: 75rem;
    margin: 0 auto 3rem;
    background-image: linear-gradient(to right, #EB3838, #EB3685);
    -webkit-background-clip: text;
    color: transparent;
}

.news .newsItems {
    width: 100%;
    max-width: 75rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.news .newsItems .item {
    margin: 0 auto;
    max-width: 23.75rem;
    height: 28.2rem;
    border-radius: 1.25rem;
    box-shadow: 0 0 .8rem rgba(107, 107, 107, .3);
    background-color: #f9f9f9;
    color: #333;
    overflow: hidden;
    transition: all .3s ease;
}

.news .newsItems .item:hover {
    box-shadow: 0 0 2rem rgba(107, 107, 107, .3);
    
}

.news .newsItems .item .item_content {
    padding: 1.25rem;
}

.news .newsItems .item .time {
    background: #4285f4;
    color: #fff;
    padding: .3rem .8rem;
    border-radius: 1rem;
    font-size: .8rem;
    display: inline-block;
    margin-bottom: 1rem;
}

.news .newsItems .item .item_content .title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: .8rem;
    color: #202124;
}

.news .newsItems .item img {
    width: 100%;
    height: 12.5rem;
    object-fit: cover;
    overflow: hidden;
}

.news .newsItems .item h3 {
    margin: .75rem 0;
}

/* faq */
.faq {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 80px 0;
    background-color: #f9f9f9;
}
.faq h2 {
    font-size: 2.5rem;
    max-width: 75rem;
    margin: 0 auto 50px;
    background-image: linear-gradient(to right, #EB3838, #EB3685);
    -webkit-background-clip: text;
    color: transparent;
}

.faq details {
    background-color: #fff;
    width: 90%;
    max-width: 75rem;
    border-radius: .65rem;
    border: 1px solid #ccc;
    padding: 0 1.5rem;
    transition: all .5s ease;
    margin-bottom: 1.25rem;
}

.faq details[open] summary {
    border-bottom: 1px solid #ccc;
}

.faq details:not([open]) summary {
    border-bottom: 0;
}

.faq summary {
    position: relative;
    width: 100%;
    list-style: none;
    padding: 1.5rem;
    font-weight: bold;
    font-size: .9rem;
    color: #1f2937;
}

.faq  summary::after {
    content: '+';
    position: absolute;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    font-weight: bold;
    color: #2563fb;
    transition: all 0.3s ease;
}

.faq details[open] summary::after {
    content: '-';
    transform: translateY(-50%) rotate(360deg);
}

.faq details:not([open]) summary::after {
    content: '+';
    transform: translateY(-50%) rotate(180deg);
}

.faq details h4 {
    font-size: 1.25rem;
    margin: 1.25rem 0;
    color: #1f2937;
}

.faq details p {
    font-size: 1rem;
    margin: 1rem 0;
    color: #6b7280;
}

/* intro_banner */
.intro_banner{
    background-color: #fafaf9;
    color: #333;
}

.intro_banner img {
    border-radius: 1.25rem;
}

/* intro_download */
.intro_download {
    background-color: #fafafa;
    color: #000;
}

.intro_download .downItems {
    width: 100%;
    max-width: 75rem;
    display: flex;
    justify-content: center;
    gap: 3rem;

}
.intro_download .downItems .item {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.intro_download .downItems img {
    width: 2.5rem;
}
.intro_download .downItems p{
    margin: 0;
    font-size: .8rem;
}
.intro_download .downItems span {
    font-size: .7rem;
    color: #666;
}
.intro_download .downItems a {
    margin-top: .5rem;
    font-size: .8rem;
    color: #1f2937;
    text-decoration: none;
    border: 1px solid #ccc;
    padding: .5rem 1.5rem;
    border-radius: 1rem;
    transition: all .3s ease;
}

.intro_download .downItems a:hover {
    background-color: #1f2937;
    color: #fff;
}

/* 响应化 */
@media (max-width: 48rem) {
    .m_menu {
        display: inline-block;
    }
    .m_auto_hide_item {
        display: none;
    }
}
@media (min-width: 75rem) {
    div.m_menu_dlg_active {
        left: -50vw;
    }
    .m_menu_dlg {
        left: -50vw;
    }
}