:root {
    /*主色輔色 改色*/
    --main-color: #1749FF;
    --sub-color: #FFDF7C;
    --sub2-color: #0028BA;


    /*勿動*/
    --white-color: #fff;
    --black-color: #1e1e1e;
}

body {
    background-color: #F8F8F8;
}

.forpc {
    display: block;
}

.forphone {
    display: none;
}

@media (max-width: 768px) {
    .forpc {
        display: none;
    }

    .forphone {
        display: block;
    }
}

.num {
    font-family: "Oswald", serif;
}

/* nav ---------- */
.navbar {
    background-color: #00000085;
}

.nav-item a {
    color: var(--white-color);
    font-size: 1rem;
    line-height: 1rem;
    letter-spacing: 1px;
}

.nav-item a:hover {
    color: var(--sub-color);
}

.btn-ticket {
    background-color: var(--main-color);
    color: var(--white-color);
    border: solid 2px var(--main-color);
    border-radius: 0rem;
    padding: 0.5rem 0.75rem !important;
}

nav .nav-item .btn-ticket .btnarrow {
    fill: var(--white-color);
}

.nav-item .btn-ticket:hover,
nav .nav-item .btn-ticket:focus {
    background-color: var(--sub-color);
    color: var(--black-color);
    border: solid 2px var(--sub-color);
}

nav .nav-item .btn-ticket:hover .btnarrow {
    fill: var(--black-color);
}

nav .nav-link {
    margin-top: 0;
    margin-bottom: 0;
}

nav .mainlogo {
    display: flex;
    align-items: center;
}

nav .mainlogo img {
    max-width: 160px;
    text-align: left;
    padding-right: 5px;
}

nav .mainlogo img.school {
    max-width: 180px;
}

.nav-item a.borderEN {
    border-left: 1px solid #d3d3d3;
}

@media (max-width: 768px) {
    nav .navbar-collapse {
        display: flex;
    }

    nav .navbar-collapse .navbar-nav {
        width: 100%;
    }

    nav .nav-item {
        justify-content: center;
    }

    .nav-item a {
        font-size: 1rem;
        line-height: 1rem;
        padding: 1.25rem 0;
    }

    .nav-item a .sm-txt,
    .nav-item p .sm-txt {
        font-size: 13px;
    }

    .navbar-toggler,
    .navbar-toggler:focus,
    .navbar-toggler:active {
        padding: 2px;
        border: 0px;
    }

    .navbar img {
        width: 130px;
    }

    nav .mainlogo img.school {
        max-width: 130px;
    }

    nav .mainlogo img {
        max-width: 90px;
        height: auto;
    }

    .nav-item a.borderEN {
        border-left: 0px solid #d3d3d3;
    }
}


/* main ---------- */

#main .main-title {
    font-size: 96px;
    font-weight: 900;
}

#main .main-sub-title {
    font-weight: 500;
    letter-spacing: 2px;
    text-shadow: 0 0 .5rem #00000050;
}

.rotatecircle {
    animation: 5s flipCard infinite linear;
}

@keyframes flipCard {
    0% {
        transform: rotateY(0deg);
    }

    5% {
        transform: rotateY(0deg);
    }

    10% {
        transform: rotateY(180deg);
    }

    15% {
        transform: rotateY(360deg);
    }

    60% {
        transform: rotateY(360deg);
    }

    65% {
        transform: rotateY(540deg);
    }

    70% {
        transform: rotateY(720deg);
    }

    100% {
        transform: rotateY(720deg);
    }
}

.sub {
    align-items: center;
}

.main-btn {
    background-color: var(--main-color);
    color: var(--white-color);
    border: solid 2px var(--main-color);
    border-radius: 6px;
    justify-content: center;
    padding: 0.5rem 0.75rem !important;
    font-size: 21px;
    letter-spacing: 2px;
    font-weight: 500;
    position: absolute;
    bottom: -25.5px;
    left: 50%;
    /* 將 left 設為父元素寬度的中間 */
    transform: translateX(-50%);
    /* 向左偏移自己寬度的一半 */
}

.main-btn .btnarrow {
    fill: var(--white-color);
}

.main-btn:hover,
main-btn:focus {
    background-color: var(--sub-color);
    color: var(--black-color);
    border: solid 2px var(--sub-color);
}

.main-btn:hover .btnarrow {
    fill: var(--black-color);
}

@media (max-width: 768px) {
    #main .main-title {
        font-size: 58px;
    }

    #main .main-sub-title {
        font-size: 18px;
    }
}

/* hlight ---------- */
#hlight h5 {
    font-size: 1.25rem;
    font-weight: 400;
    text-shadow: 0 0 .25rem #00000050;
}

#hlight h3 {
    font-size: 2rem;
    font-weight: 700;
    padding-bottom: 0.5rem;
    text-shadow: 0 0 .25rem #00000050;
}

#hlight .card01 {
    background-image: linear-gradient(to bottom right, #9C0202c2, #FF0094c2), url(https://edm.bnext.com.tw/meet/expo/aitaiwai/assets/images/card01.jpg);
}

#hlight .card02 {
    background-image: linear-gradient(to bottom right, #0E2A8Dc2, #2186E5c2), url(https://edm.bnext.com.tw/meet/expo/aitaiwai/assets/images/card02.jpg)
}

#hlight .card03 {
    background-image: linear-gradient(to bottom right, #FC6A2Cc2, #FCC92Cc2), url(https://edm.bnext.com.tw/meet/expo/aitaiwai/assets/images/card03.jpg);
}

#hlight .card04 {
    background-image: linear-gradient(to bottom right, #05de75c2, #5203c1c2),
        url(https://edm.bnext.com.tw/meet/expo/aitaiwai/assets/images/card04.jpg);
}

#hlight .card {
    padding: 3.5rem 2rem;
    border: 0;
    box-shadow: 0 0 6px #49494944;
    background-position: center;
    background-size: cover;
    transform: scale(0.97);
    border-radius: 0.5rem;
}

@media (max-width: 768px) {
    #hlight {
        padding-bottom: 0;
    }

    #hlight .card {
        padding: 2.5rem 1rem;
        border: 0;
        transform: scale(1);
        margin: 0;
    }
}

/* KeyData ---------- */
#KeyData {
    padding: 2rem 0;
    background-color: #2f2f2f;
}

#KeyData h3 {
    color: var(--sub-color);
    text-align: center;
    font-size: 36px;
    font-family: "Oswald", 'Noto Sans';
}

#KeyData h6 {
    color: var(--white-color);
    text-align: center;
}

@media (max-width: 768px) {
    #KeyData h3 {
        font-size: 24px;
    }
}

/* progress ---------- */

#progress ul {
    padding: 0;
    row-gap: 1.5rem;
    column-gap: 1.5rem;

    .chart {
        width: 150px;
        height: 150px;
        margin: 0 10px;
        vertical-align: top;
        position: relative;
        box-sizing: border-box;
        justify-content: center;
        display: flex;
        align-content: center;
        flex-wrap: wrap;
        font-size: 36px;
        font-family: "Oswald", serif;
        font-weight: 600;
        color: var(--main-color);

        span {
            position: absolute;
            font-size: 16px;
            font-weight: 300;
            width: 160%;
            bottom: -40px;
            font-family: 'Noto Sans';
            color: #1e1e1e;
        }

        canvas {
            position: absolute;
            left: 0;
            top: 0;
        }
    }
}

@media (max-width: 768px) {
    #progress ul {
        padding: 0;
        row-gap: 4rem;
        column-gap: 1.5rem;
        margin-top: 70px;

        .chart {
            span {
                width: 100%;
                top: -50px;
            }
        }
    }
}

/* marquee ---------- */
#marquee {
    background-color: #f1f5f9;
    padding: 2rem 0;
}

#marquee .item {
    height: 100px;
}

#marquee .item img {
    object-fit: contain;
    height: 100px;
}

/* #marquee .owl-item {
    width: 150px !important;
} */



/* 講師陣容－多位輪播 */

#speaker4 .speaker-card .speaker-info,
#speaker4 .speaker-card .speaker_name {
    background-color: var(--main-color);
}

#speaker4 .speaker-card .speaker_name {
    padding: 15px;
    min-height: 140px;
    color: var(--white-color);
}

#speaker4 .speaker-card .speaker_name h6 {
    font-size: 16px;
}

#speaker4 .speaker-card .speaker_img .speaker-info {
    position: absolute;
    bottom: 0;
    left: 0;
    transition: all .3s linear;
    overflow: hidden;
    opacity: .9;
    width: 100%;
    height: 0;
}

#speaker4 .speaker-card:hover .speaker-info,
#speaker4 .speaker-card:focus .speaker-info {
    height: 100%;
}

#speaker4 .speaker-card .speaker_img .speaker-info p {
    padding: 12px 14px;
    opacity: 1;
    color: var(--white-color);
}

#speaker4 .owl-theme .owl-nav {
    position: absolute;
    width: 100%;
    justify-content: end;
}

#speaker4 .owl-carousel .owl-nav button.owl-next,
#speaker4 .owl-carousel .owl-nav button.owl-prev {
    background-color: transparent;
    color: var(--main-color);
    width: 30px;
    height: 30px;
    margin: 0;
    border-radius: 0;
    font-size: 1.25rem;
    align-content: center;
}

#speaker4 .owl-carousel .owl-nav button.owl-next:hover,
#speaker4 .owl-carousel .owl-nav button.owl-prev:hover {
    background-color: var(--sub-color);
}

@media (max-width: 768px) {

    #speaker4 .speaker-card .speaker_name {
        padding: 6px;
        min-height: 100px;
    }

    #speaker4 .speaker-carousel {
        margin-bottom: 2rem;
    }
}

#sec-07 {
    background-color: #282828;
    position: relative;
}

#sec-07::before {
    content: '';
    background-image: radial-gradient(circle at top, #282828, #282828 60%, #3F2DE9 76%, #FFFFFF 100%);
    position: absolute;
    width: calc(100% - 2rem);
    height: calc(100% - 2rem);
    bottom: 1rem;
    left: 1rem;
    border-radius: 1rem;
}


.flip-area {
    position: relative;
}

.flip-card {
    background-color: transparent;
    height: 200px;
    perspective: 1000px;
    padding: 2px;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.6s;
    transform-style: preserve-3d;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);
    backface-visibility: hidden;
    -moz-backface-visibility: hidden;
}

.flip-card:focus {
    outline: 0;
}

.flip-card:hover .flip-card-inner,
.flip-card:focus .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card:hover .flip-card-inner .flip-card-back,
.flip-card:focus .flip-card-inner .flip-card-back {
    z-index: 2;
}

.flip-card-front,
.flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
}

.flip-card-front {
    background: linear-gradient(to left, #4364f7, #6fb1fc);
    color: white;
    z-index: 2;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.35rem;
    font-weight: 600;
    padding: 0.5rem;
    line-height: 1.5;
    border-radius: 12px;
    border: 2px solid #eee;
    overflow: hidden;
}


.flip-card-front.ecosystem01 {
    background: url(https://edm.bnext.com.tw/meet/expo/aitaiwai/assets/images/sec-07/ecosystem-01.jpg);
    background-size: cover;
}

.flip-card-front.ecosystem02 {
    background: url(https://edm.bnext.com.tw/meet/expo/aitaiwai/assets/images/sec-07/ecosystem-02.jpg);
    background-size: cover;
}

.flip-card-front.ecosystem03 {
    background: url(https://edm.bnext.com.tw/meet/expo/aitaiwai/assets/images/sec-07/ecosystem-03.jpg);
    background-size: cover;
}

.flip-card-front.ecosystem04 {
    background: url(https://edm.bnext.com.tw/meet/expo/aitaiwai/assets/images/sec-07/ecosystem-04.jpg);
    background-size: cover;
}

.flip-card-front.ecosystem05 {
    background: url(https://edm.bnext.com.tw/meet/expo/aitaiwai/assets/images/sec-07/ecosystem-05.jpg);
    background-size: cover;
}

.flip-card-front.ecosystem06 {
    background: url(https://edm.bnext.com.tw/meet/expo/aitaiwai/assets/images/sec-07/ecosystem-06.jpg);
    background-size: cover;
}

.flip-card-front.ecosystem07 {
    background: url(https://edm.bnext.com.tw/meet/expo/aitaiwai/assets/images/sec-07/ecosystem-07.jpg);
    background-size: cover;
}

.flip-card-front.ecosystem08 {
    background: url(https://edm.bnext.com.tw/meet/expo/aitaiwai/assets/images/sec-07/ecosystem-08.jpg);
    background-size: cover;
}

.flip-card-front.ecosystem09 {
    background: url(https://edm.bnext.com.tw/meet/expo/aitaiwai/assets/images/sec-07/ecosystem-09.jpg);
    background-size: cover;
}

.flip-card-front.ecosystem10 {
    background: url(https://edm.bnext.com.tw/meet/expo/aitaiwai/assets/images/sec-07/ecosystem-10.jpg);
    background-size: cover;
}

.flip-card-back {
    background: linear-gradient(to right bottom, #FFFFFF 20%, #ECF2F4);
    color: #6B7280;
    transform: rotateY(180deg);
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    justify-content: end;
    align-items: center;
    text-align: start;
    align-content: space-between;
    border-radius: 12px;
    border: 4px solid #ffcd00;
}



.tab-pane .org-price {
    text-decoration: line-through;
}

.tab-pane .discount {
    color: white;
    border-radius: 2rem;
    background: #e4007f;
    padding: 6px 10px;
}

.tab-pane .price {
    font-size: 2rem;
    font-weight: 700;
}

.tab-pane .price.global-price {
    font-size: 1.2rem;
}

.tab-pane .info {
    color: #8c8c8c;
    font-weight: 500;
}

.tab-pane .info.global-info {
    color: #e4007f;
    font-weight: 500;
}

.tab-pane .plan-list ul li {
    line-height: 1.75rem;
    list-style: disc;
    margin-left: 1rem;
    color: #5d5d5d;
}

.tab-pane .plan-list ul li.focus {
    color: #000000;
    font-weight: 600;
}

.tab-pane hr {
    border-top-width: 1px;
    color: inherit;
    height: 0;
    width: 100%;
}



/* Exhibition ---------- */
#Exhibition ul.group-conference li {
    padding: 3px 0;
}

#Exhibition .exhibition-carousel .item {
    background-color: #EDF1FF;
    border: 3px solid var(--main-color);
    padding: 1rem;
    border-radius: 1rem;
    min-height: 500px;
}

#Exhibition .exhibition-carousel .item.normal {
    background-color: var(--white-color);
    border: 3px solid var(--black-color);
    padding: 1rem;
    border-radius: 1rem;
    min-height: 500px;
    align-content: start;
}

#Exhibition .exhibition-carousel .item .item-head {
    padding-bottom: 1rem;
    border-bottom: 1px solid #A5B8FF;
    height: 113.89px;
}

#Exhibition .exhibition-carousel .item.normal .item-head {
    padding-bottom: 1rem;
    border-bottom: 1px solid #848484;
    height: 113.89px;
}

#Exhibition .exhibition-carousel .item .item-head h3 {
    color: var(--main-color);
}

#Exhibition .exhibition-carousel .item .item-head h6 {
    color: var(--main-color);
}

#Exhibition .exhibition-carousel .item.normal .item-head h3 {
    color: var(--black-color);
}

#Exhibition .exhibition-carousel .item.normal .item-head h6 {
    color: var(--black-color);
}

#Exhibition .exhibition-carousel .item .item-head img {
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: 12px;
    width: 33%;
}

#Exhibition .exhibition-carousel .item .item-area {
    align-content: space-between;
    height: 345px;
}

#Exhibition .exhibition-carousel .item ul {
    padding: 0 0 0 8px;
}

#Exhibition .exhibition-carousel .item ul li {
    list-style: none;
}

#Exhibition .exhibition-carousel .item ul li i {
    color: var(--main-color);
}

#Exhibition .exhibition-carousel .item ul li p {
    padding-top: 8px;
}

#Exhibition .exhibition-carousel .item ul li .conference li {
    list-style: circle;
}

#Exhibition .exhibition-carousel .item ul li .conference {
    padding: 0 0 0 32px;
    font-size: 14.4px;
    font-weight: 300;
}

#Exhibition .price-btn {
    background-color: var(--main-color);
    color: var(--white-color);
    border: solid 2px var(--main-color);
    border-radius: 6px;
    justify-content: center;
    padding: 0.5rem 0.75rem !important;
    font-size: 18px;
    letter-spacing: 2px;
    font-weight: 500;
}

#Exhibition .price-btn .btnarrow {
    fill: var(--white-color);
}

#Exhibition .price-btn:hover,
#Exhibition .price-btn:focus {
    background-color: var(--sub-color);
    color: var(--black-color);
    border: solid 2px var(--sub-color);
}

#Exhibition .price-btn:hover .btnarrow {
    fill: var(--black-color);
}

#Exhibition .exhibition-carousel .item .item-area h6 {
    color: white;
    background-color: #FF0000;
    font-family: "Oswald", 'Noto Sans';
    padding: 6px 20px;
    border-radius: 50px;
}

#Exhibition .exhibition-carousel .item .item-area h2 {
    color: black;
    font-weight: 900;
    font-family: "Oswald", 'Noto Sans';
    font-size: 64px;
}

/*Registration ---------- */

#Registration .accordion-item {
    border: unset;
    background: none;
}

#Registration .accordion-body h6.step {
    color: #717171;
    font-weight: 300;
    padding: 0;
}

#Registration .accordion-body h4 {
    color: var(--main-color);
}


/*FAQ ---------- */

#FAQ .accordion-item {
    border: none;
    background: none;
    padding: 1% 1%;
}

#FAQ .accordion-button:not(.collapsed) {
    color: var(--black-color);
    background-color: #f2f2f2;
    border-radius: 12px 12px 0px 0px;
    /* box-shadow:none; */
}

#FAQ .accordion-button {
    background-color: #f2f2f2;
    border-radius: 12px;
}

#FAQ .accordion-body {
    padding: 1% 2% 0.5% 2%;
    background-color: #f2f2f2;
    border-radius: 0px 0px 12px 12px;
}

#FAQ .qa-btn {
    background-color: var(--main-color);
    color: var(--white-color);
    border: solid 2px var(--main-color);
    border-radius: 6px;
    justify-content: center;
    padding: 0.5rem 0.75rem !important;
    font-size: 21px;
    letter-spacing: 2px;
    font-weight: 500;
    margin: 1rem auto;
}

#FAQ .qa-btn .btnarrow {
    fill: var(--white-color);
}

#FAQ .qa-btn:hover,
#FAQ .qa-btn:focus {
    background-color: var(--sub-color);
    color: var(--black-color);
    border: solid 2px var(--sub-color);
}

#FAQ .qa-btn:hover .btnarrow {
    fill: var(--black-color);
}

@media (max-width: 768px) {
    #FAQ .accordion-item {
        padding: 3% 1%;
    }
}



/*footer改色 ---------- */

footer {
    background-color: #727272;
}

footer ul {
    list-style: none;
    color: #F5F5F5;
    font-size: 14px;
    font-weight: 100;
    padding: 1.5rem 0;
    margin: 0;
    letter-spacing: 1px;
    font-family: 'Roboto Flex', sans-serif;
}

footer ul a {
    color: #F5F5F5;
    text-decoration: underline;
}

footer .scrolltop {
    background: var(--main-color);
    color: var(--white-color);
    opacity: .9;
}

#footer .scrolltop {
    position: fixed;
    bottom: 7.5%;
    right: 2%;
    width: 55px;
    height: 55px;
    display: none;
    font-size: 30px;
    z-index: 20;
    border-radius: 50%;
    text-align: center;
}

#copyright {
    font-size: 14px;
    font-weight: 100;
    color: #F5F5F5;
    background-color: #494949;
    padding-bottom: 2rem;
}

@media (max-width: 768px) {
    #footer {
        padding: 18px 0;
    }
}

/* #plan_box 方案說明卡片 */
@media (max-width: 992px) {
    #plan_box.plan-cards {
        grid-template-columns: 1fr;
    }
}