@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@100;300;400;500;700;900&family=Noto+Serif+TC:wght@200;300;400;500;600;700;900&display=swap");


@font-face {
    font-family: "Futura Std Light";
    src: url(../fonts/Futura\ Std\ Light.otf);
}

@font-face {
    font-family: "Futura Std Book";
    src: url(../fonts/Futura\ Std\ Book.otf);
}

[data-aos="opacity-down"] {
    opacity: 1;
    clip-path: inset(0% 0 100% 0);
    /* 初始状态下完全隐藏 */
}

[data-aos="opacity-down"].aos-animate {
    opacity: 1;
    clip-path: inset(0 0 0 0);
    /* 显示全部图片 */
}

[data-aos="opacity-up"] {
    opacity: 1;
    clip-path: inset(100% 0 0% 0);
    /* 初始状态下完全隐藏 */
}

[data-aos="opacity-up"].aos-animate {
    opacity: 1;
    clip-path: inset(0 0 0 0);
    /* 显示全部图片 */
}

[data-aos="opacity-left"] {
    opacity: 1;
    clip-path: inset(0% 0% 0 100%);
    /* 初始状态下完全隐藏 */
}

[data-aos="opacity-left"].aos-animate {
    opacity: 1;
    clip-path: inset(0 0 0 0);
    /* 显示全部图片 */
}

[data-aos="opacity-right"] {
    opacity: 1;
    clip-path: inset(0% 100% 0 0%);
    /* 初始状态下完全隐藏 */
}

[data-aos="opacity-right"].aos-animate {
    opacity: 1;
    clip-path: inset(0 0 0 0);
    /* 显示全部图片 */
}

[data-aos="opacity-x"] {
    opacity: 1;
    clip-path: inset(0% 100% 0 100%);
    /* 初始状态下完全隐藏 */
}

[data-aos="opacity-x"].aos-animate {
    opacity: 1;
    clip-path: inset(0 0 0 0);
    /* 显示全部图片 */
}


body,
html {
    width: 100%;
    margin: 0;
    padding: 0;
    background-color: #3e4444;
    scroll-behavior: smooth;
    --vw-base: calc(100vw / 1920);
}

a:link,
a:visited,
a:hover,
a:active {
    text-decoration: none;
}

button,
input,
textarea,
select,
option {
    margin: 0;
    padding: 0;
    -webkit-appearance: none;
    -webkit-border-radius: 0px;
    border-radius: 0;
    -moz-appearance: none;
    appearance: none;
    outline: none;
}



ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0;
    padding: 0;
}

img,
video {
    position: relative;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.pic-txt {
    position: absolute;
    bottom: calc(15* var(--vw-base));
    right: calc(15* var(--vw-base));
    left: auto;
    color: #fff;
    font-size: calc(20* var(--vw-base));
    font-family: "Noto Sans TC";
    font-weight: 400;
    letter-spacing: 0.05em;
    line-height: calc(20* var(--vw-base));
    z-index: 10;
}

.pic-txt-odd {
    position: absolute;
    bottom: calc(15* var(--vw-base));
    right: auto;
    left: calc(15* var(--vw-base));
    color: #fff;
    font-size: calc(20* var(--vw-base));
    font-family: "Noto Sans TC";
    font-weight: 400;
    letter-spacing: 0.05em;
    line-height: calc(20* var(--vw-base));
    z-index: 10;
}

.line-scaleY {
    width: 100%;
    height: 100%;
    will-change: transform;
    transform: scaleY(0.7) !important;
    transition: transform .1s ease;
}

.line-scaleX {
    width: 100%;
    height: 100%;
    will-change: transform;
    transform: scaleX(0.7) !important;
    transition: transform .1s ease;
}


.container {
    width: 100%;
    min-height: 100vh;
    position: relative;
    background-color: #364753;
    box-sizing: border-box;
    padding-bottom: 15vw;
}


/*全部*/

.circle {
    width: 50vw;
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    /* display: none; */
    z-index: 2;
}

.bottom-bg {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: auto;
}

.logo-shadow {
    position: fixed;
    width: calc(635* var(--vw-base));
    height: calc(199* var(--vw-base));
    z-index: 5;
    opacity: 1;
    transition: opacity .6s ease;
    pointer-events: none;
}

.logo-shadow img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: 0 0;
}

.main1 {
    position: relative;
    width: 100%;
    height: calc(1080* var(--vw-base));
    overflow: hidden;
    z-index: 3;
    filter: brightness(0.5);
    animation: filterDark 3s ease 0.4s forwards;
}

@keyframes filterDark {
    from {
        filter: brightness(0.5);
        /* 一開始加深，變暗 */
        opacity: 1;
    }

    to {
        filter: brightness(1);
        /* 回到原色 */
        opacity: 1;
    }
}

.swiper1 {
    height: 100%;
}

.swiper1 .sw-pic {
    height: 100%;
    background-color: #434343;
}

.sw1-next {
    position: absolute;
    right: calc(40*var(--vw-base));
    top: 50%;
    transform: translateY(-50%);
    width: calc(20*var(--vw-base));
    height: calc(34*var(--vw-base));
    cursor: pointer;
    z-index: 99;
}

.sw1-prev {
    position: absolute;
    left: calc(40*var(--vw-base));
    top: 50%;
    transform: translateY(-50%);
    width: calc(20*var(--vw-base));
    height: calc(34*var(--vw-base));
    cursor: pointer;
    z-index: 99;
}

.sw1-next img,
.sw1-prev img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}


.main1 .swiper-slide {
    overflow: hidden;
}

.main1 .swiper-slide img {
    width: 100%;
    height: 100%;
    transform: scale(1.2);
    animation: transformScale 6s ease 0.4s forwards;
}

@keyframes transformScale {
    from {
        transform: scale(1.2);
        opacity: 1;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}


.main2 {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: calc(450* var(--vw-base));
    box-sizing: border-box;
    padding: calc(205* var(--vw-base)) 0 calc(672* var(--vw-base)) 0;
    overflow: hidden;
    z-index: 3;
}

.side-group {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: calc(585* var(--vw-base));
    box-sizing: border-box;
    padding: 0 calc(146* var(--vw-base)) 0 calc(146* var(--vw-base));
}

.side-item {
    position: relative;
    width: 100%;
    height: calc(547* var(--vw-base));
    display: flex;
    justify-content: start;
    flex-wrap: nowrap;
    gap: calc(185* var(--vw-base));
}

.side-item.reverse {
    flex-direction: row-reverse;
    justify-content: end;
}

.swiper2 {
    position: relative;
    width: calc(957* var(--vw-base));
    height: calc(546* var(--vw-base));
    flex-shrink: 0;
}

.swiper2 .swiper-wrapper {
    background-color: #3e4444;
}

.swiper2 .side-pic {
    position: relative;
    width: calc(957* var(--vw-base));
    height: calc(546* var(--vw-base));
    /* overflow: hidden; */
    background-color: #434343;
}

.swiper2-back {
    position: absolute;
    top: calc(55* var(--vw-base));
    left: calc(-150* var(--vw-base));
    overflow: hidden;
    width: calc(957* 0.79* var(--vw-base));
    height: calc(546* 0.79* var(--vw-base));
    background-color: #3d4343;
}

.swiper2-back .swiper-slide::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    /* 半透明黑色遮罩 */
    z-index: 2;
    /* 遮罩层覆盖图片 */
    pointer-events: none;
    /* 让遮罩层不影响用户操作 */
}

.swiper2-back img {
    filter: blur(5px);
}

[data-aos="fade-x"] {
    opacity: 0;
    transform: translateX(calc(150* var(--vw-base)));
}


.side-item.reverse .swiper2-back {
    position: absolute;
    top: calc(55* var(--vw-base));
    left: auto;
    right: calc(-150* var(--vw-base));
    overflow: hidden;
    width: calc(957* 0.79* var(--vw-base));
    height: calc(546* 0.79* var(--vw-base));
    background-color: #3d4343;
}


.reverse .swiper2-back[data-aos="fade-x"] {
    opacity: 0;
    transform: translateX(calc(-150* var(--vw-base)));
}

.reverse .swiper2-back[data-aos="fade-x"].aos-animate {
    opacity: 1;
    transform: translateX(calc(0* var(--vw-base)));
}



[data-aos="fade-x"].aos-animate {
    opacity: 1;
    transform: translateX(calc(0* var(--vw-base)));
}


.sw-contain {
    position: relative;
    height: calc(546* var(--vw-base));
    /* width: calc(488* var(--vw-base)); */

}

.sw-contain .sw-txt {
    position: relative;
    padding-top: calc(212* var(--vw-base));
    /* width: calc(488* var(--vw-base)); */
    color: #fff;
    font-size: calc(20* var(--vw-base));
    font-family: "Noto Sans TC";
    font-weight: 300;
    letter-spacing: 0.15em;
    line-height: calc(35* var(--vw-base));
}

.side-item .sw-btns {
    position: absolute;
    left: 0;
    bottom: calc(6*var(--vw-base));
    display: flex;
    gap: calc(12*var(--vw-base));
    z-index: 10;
}

.side-item.reverse .sw-contain .sw-btns {
    left: auto;
    right: 0;
}

.side-item .sw-btn {
    position: relative;
    width: calc(30*var(--vw-base));
    height: calc(15*var(--vw-base));
    background-color: #fff;
    border-radius: calc(7.46*var(--vw-base)) 0 calc(11*var(--vw-base)) calc(7.46*var(--vw-base));
    cursor: pointer;
}

.side-item .sw-contain .sw-btn2 {
    background-color: #ff6012;
}

.side-item .pjtindex {
    position: absolute;
    bottom: calc(0*var(--vw-base));
    right: calc(0*var(--vw-base));
    color: #ffffff;
    font-size: calc(20*var(--vw-base));
    font-family: "Futura Std Book";
    letter-spacing: 0.3em;
}

.side-item.reverse .sw-contain .pjtindex {
    right: auto;
    left: 0;
}

.pic-txt-under {
    position: absolute;
    bottom: calc(-30 * var(--vw-base));
    right: calc(0* var(--vw-base));
    color: #fff;
    font-size: calc(20* var(--vw-base));
    font-family: "Noto Sans TC";
    font-weight: 300;
    letter-spacing: 0.3em;
    line-height: calc(20* var(--vw-base));
    z-index: 10;
    transition: opacity 0.5s ease-in-out;
    opacity: 0; 
}

.side-item.reverse .pic-txt-under {
    right: auto;
    left: 0;
}

.swiper-slide-active .pic-txt-under{
    opacity: 1; 
 }



.front .side-line-x {
    position: absolute;
    bottom: calc(32*var(--vw-base));
    right: 0;
    width: calc(660*var(--vw-base));
    height: 1px;
}

.front .side-line-up {
    position: absolute;
    left: calc(994*var(--vw-base));
    bottom: calc(260*var(--vw-base));
    height: calc(493*var(--vw-base));
    width: 1px;
}

.front .side-line-down {
    position: absolute;
    left: calc(1111*var(--vw-base));
    top: calc(218*var(--vw-base));
    height: calc(950*var(--vw-base));
    width: 1px;
}

.front .txt-up {
    position: absolute;
    left: calc(1006*var(--vw-base));
    bottom: calc(260*var(--vw-base));
    color: #83dae2;
    font-size: calc(30*var(--vw-base));
    font-family: "Noto Sans TC";
    font-weight: 400;
    letter-spacing: 0.28em;
    writing-mode: vertical-lr;
}

.front .txt-down {
    position: absolute;
    left: calc(1064*var(--vw-base));
    top: calc(218*var(--vw-base));
    color: #83dae2;
    font-size: calc(30*var(--vw-base));
    font-family: "Noto Sans TC";
    font-weight: 400;
    letter-spacing: 0.28em;
    writing-mode: vertical-lr;
}

.front .side-line-x>div,
.front .side-line-up>div,
.front .side-line-down>div {
    background-color: #83dae2;
}


.reverse .side-line-x {
    position: absolute;
    bottom: calc(32*var(--vw-base));
    left: 0;
    width: calc(660*var(--vw-base));
    height: 1px;
}

.reverse .side-line-up {
    position: absolute;
    right: calc(994*var(--vw-base));
    bottom: calc(260*var(--vw-base));
    height: calc(493*var(--vw-base));
    width: 1px;
}

.reverse .side-line-down {
    position: absolute;
    right: calc(1111*var(--vw-base));
    top: calc(218*var(--vw-base));
    height: calc(950*var(--vw-base));
    width: 1px;
}

.reverse .txt-up {
    position: absolute;
    right: calc(1006*var(--vw-base));
    bottom: calc(260*var(--vw-base));
    color: #83dae2;
    font-size: calc(30*var(--vw-base));
    font-family: "Noto Sans TC";
    font-weight: 400;
    letter-spacing: 0.28em;
    writing-mode: vertical-lr;
}

.reverse .txt-down {
    position: absolute;
    right: calc(1064*var(--vw-base));
    top: calc(218*var(--vw-base));
    color: #83dae2;
    font-size: calc(30*var(--vw-base));
    font-family: "Noto Sans TC";
    font-weight: 400;
    letter-spacing: 0.28em;
    writing-mode: vertical-lr;
}

.reverse .side-line-x>div,
.reverse .side-line-up>div,
.reverse .side-line-down>div {
    background-color: #83dae2;
}

.side-item:last-child .side-line-down {
    height: calc(950*var(--vw-base));
}


.main2 .bottom-line {
    position: absolute;
    bottom: calc(50*var(--vw-base));
    left: calc(0*var(--vw-base));
    width: auto;
    display: flex;
    gap: calc(10*var(--vw-base));
    align-items: center;
    height: 1px;
}

.main2 .bottom-line .line-scaleY {
    position: relative;
    width: calc(1682*var(--vw-base));
    background-color: #83dae2;
}


.bottom-line .bottom-year {
    position: relative;
    top: calc(-10*var(--vw-base));
    color: #ffffff;
    font-size: calc(35*var(--vw-base));
    font-family: "Futura Std Light";
    letter-spacing: 0.3em;
    line-height: calc(35*var(--vw-base));
}

.center-group {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.swiper4-ani {
    position: relative;
    width: 100%;
    display: flex;
    justify-content: center;
    /* 使 .swiper4 置中 */
    align-items: end;
    gap: calc(10*var(--vw-base));
    /* 增加 swiper4 和左右容器之間的間距 */
    overflow: hidden;
}

.swiper4 {
    width: calc(957*var(--vw-base)*3);
    /* height: calc(720*var(--vw-base)); */
    /* overflow: visible; */
    z-index: 2;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.swiper4 .swiper-title {
    position: relative;
    width: calc(957*var(--vw-base));
    display: flex;
    /* flex-direction: row-reverse; */
    justify-content: space-between;
    align-self: center;
}

.swiper4 .swiper-title-reverse {
    position: relative;
    width: calc(957*var(--vw-base));
    display: flex;
    flex-direction: row-reverse;
    justify-content: space-between;
    align-self: center;
}

.swiper4 .sw-btns {
    position: relative;
    display: flex;
    gap: calc(12*var(--vw-base));
    z-index: 10;
}

.swiper4 .sw-btn {
    position: relative;
    width: calc(30*var(--vw-base));
    height: calc(15*var(--vw-base));
    background-color: #fff;
    border-radius: calc(7.46*var(--vw-base)) 0 calc(11*var(--vw-base)) calc(7.46*var(--vw-base));
    cursor: pointer;
}

.swiper4 .sw-btn2 {
    background-color: #ff6012;
}


.swiper4 .pjtindex {
    position: relative;
    color: #fff;
    font-size: calc(20*var(--vw-base));
    font-family: "Futura Std Light";
    letter-spacing: 0.3em;
}


.swiper4 .swiper-wrapper {
    position: relative;
    align-items: end;
    /* min-height: calc(661*var(--vw-base)); */
    padding-bottom: calc(50*var(--vw-base));
}

.swiper4 .swiper-slide {
    position: relative;
    width: calc(957*var(--vw-base));
    height: calc(547*var(--vw-base));
    transition: all 0.5s ease-in-out;
    /* background-color: #434343; */
    box-sizing: border-box;
    padding: 0 calc(5*var(--vw-base)) 0 calc(5*var(--vw-base));
}

.swiper4 h1 {
    margin-top: calc(50*var(--vw-base));
    text-align: center;
    color: #fff;
    font-size: calc(30*var(--vw-base));
    font-family: "Noto Sans TC";
    font-weight: 400;
    letter-spacing: 0.3em;
}

.swiper4 h2 {
    margin: calc(20 * var(--vw-base)) auto 0 auto;
    width: calc(862 * var(--vw-base));
    text-align: center;
    color: #fff;
    font-size: calc(20*var(--vw-base));
    font-family: "Noto Sans TC";
    font-weight: 300;
    letter-spacing: 0.3em;
    line-height: calc(45*var(--vw-base));
}

.swiper4 .swiper-slide .pic-txt {
    position: absolute;
    bottom: calc(-35*var(--vw-base));
    right: calc(0*var(--vw-base));
    color: #fff;
    font-size: calc(20*var(--vw-base));
    font-family: "Noto Sans TC";
    font-weight: 300;
    letter-spacing: 0.3em;
    opacity: 0;
    transition: all 0.5s ease-in-out;
}

.swiper4 .swiper-slide-active .pic-txt {
    opacity: 1;
    transition: all 0.5s ease-in-out;
}

.swiper4 .swiper-slide .sw-img {
    position: absolute;
    bottom: 0;
    width: calc(538*var(--vw-base));
    height: calc(308*var(--vw-base));
    left: calc(50% - 538*var(--vw-base)/2);
    transition: all 1s ease-in-out;
    background-color: #434343;
}

.swiper4 .swiper-slide-next .sw-img {
    background-color: #434343;
    width: calc(538*var(--vw-base));
    height: calc(308*var(--vw-base));
    bottom: 0;
    left: calc(10*var(--vw-base));
    transition: all 1s ease-in-out;
}

.swiper4 .swiper-slide-prev .sw-img {
    background-color: #434343;
    width: calc(538*var(--vw-base));
    height: calc(308*var(--vw-base));
    bottom: 0;
    left: calc(100% - 548*var(--vw-base));
    transition: all 1s ease-in-out;
}

.swiper4 .swiper-slide-active .sw-img {
    background-color: #434343;
    width: 100%;
    height: calc(547*var(--vw-base));
    bottom: 0;
    right: 0;
    left: 0;
    transition: all 1s ease-in-out;
}

.center-txt {
    position: relative;
    margin-top: calc(0*var(--vw-base));
    width: calc(957*var(--vw-base));
    height: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.center-txt .txt-title {
    position: absolute;
    top: calc(32* var(--vw-base));
    left: auto;
    right: 0;
    width: calc(754* var(--vw-base));
    color: #83dae2;
    font-size: calc(30* var(--vw-base));
    font-family: "Noto Sans TC";
    font-weight: 400;
    letter-spacing: 0.3em;
    line-height: calc(35* var(--vw-base));
    text-align: justify;
}

.center-txt-odd .txt-title {
    position: absolute;
    top: calc(32* var(--vw-base));
    left: 0;
    right: auto;
    width: calc(754* var(--vw-base));
    color: #83dae2;
    font-size: calc(30* var(--vw-base));
    font-family: "Noto Sans TC";
    font-weight: 400;
    letter-spacing: 0.3em;
    line-height: calc(35* var(--vw-base));
    text-align: justify;
    text-align-last: end;
}



.center-txt h1 {
    position: absolute;
    top: calc(90* var(--vw-base));
    left: auto;
    right: 0;
    width: calc(754* var(--vw-base));
    color: #fff;
    font-size: calc(20* var(--vw-base));
    font-family: "Noto Sans TC";
    font-weight: 300;
    letter-spacing: 0.3em;
    line-height: calc(35* var(--vw-base));
    text-align: justify;
}



.center-txt-odd h1 {
    position: absolute;
    top: calc(90* var(--vw-base));
    left: 0;
    right: auto;
    width: calc(754* var(--vw-base));
    color: #fff;
    font-size: calc(20* var(--vw-base));
    font-family: "Noto Sans TC";
    font-weight: 300;
    letter-spacing: 0.3em;
    line-height: calc(35* var(--vw-base));
    text-align: justify;
    text-align-last: end;
}

.front .side-en {
    position: absolute;
    left: calc(540*var(--vw-base));
    bottom: calc(758*var(--vw-base));
    color: transparent;
    -webkit-text-stroke: calc(.4*var(--vw-base)) #fff;
    font-size: calc(60* var(--vw-base));
    line-height: calc(72* var(--vw-base));
    font-family: "Futura Std Book";
    letter-spacing: 0.2em;
}

.reverse .side-en {
    position: absolute;
    right: calc(540*var(--vw-base));
    bottom: calc(758*var(--vw-base));
    color: transparent;
    -webkit-text-stroke: calc(.4*var(--vw-base)) #fff;
    font-size: calc(60* var(--vw-base));
    line-height: calc(72* var(--vw-base));
    font-family: "Futura Std Book";
    letter-spacing: 0.2em;
}

.text-stroke {
    -webkit-text-stroke: calc(.4*var(--vw-base)) #ff6012;
}

.main3 {
    position: relative;
    margin-bottom: calc(392*var(--vw-base));
    width: 100%;
    height: calc(527*var(--vw-base));
    /* background-color: #3d4b4b; */
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: #fff;
    z-index: 3;
}


.main3-info {
    position: relative;
    z-index: 5;
    margin-top: calc(125*var(--vw-base));
    width: calc(675*var(--vw-base));
}

.main3-info h1 {
    position: relative;
    color: #fff;
    font-size: calc(35*var(--vw-base));
    font-family: "Noto Sans TC";
    font-weight: 400;
    letter-spacing: 0.3em;
}

.main3-info ul {
    position: relative;
    margin-top: calc(15*var(--vw-base));
}

.main3-info li {
    position: relative;
    display: flex;
    width: calc(678* var(--vw-base));
    align-items: flex-start;
    /* margin-top: calc(20*var(--vw-base)); */
    color: #fff;
    font-size: calc(20*var(--vw-base));
    font-family: "Noto Sans TC";
    font-weight: 300;
    letter-spacing: 0.3em;
    line-height: calc(28*var(--vw-base));
}

.main3-info li {
    margin-top: calc(15*var(--vw-base));
}

.main3-info .infoname {
    position: relative;
    min-width: calc(100* var(--vw-base));
    display: inline-block;
    /* 固定名稱寬度，不會被擠壓 */
    flex-shrink: 0;
    text-align: justify;
    text-align-last: justify;
}

.main3-info .infoline {
    position: relative;
    top: calc(-2* var(--vw-base));
    display: inline-block;
    margin: 0 calc(5* var(--vw-base));
}

.main3-info .infocontent {
    position: relative;
    display: block;
    text-align: justify;
}


.main3-mark {
    position: absolute;
    right: calc(1500*var(--vw-base));
    bottom: calc(-75*var(--vw-base));
    color: transparent;
    -webkit-text-stroke: calc(.4*var(--vw-base)) #fff;
    font-size: calc(60* var(--vw-base));
    line-height: calc(72* var(--vw-base));
    font-family: "Futura Std Book";
    letter-spacing: 0.2em;
    vertical-align: bottom;
}

.main3-mark-red {
    -webkit-text-stroke: calc(.4*var(--vw-base)) #ff6012;
}

.main3-line {
    position: absolute;
    right: 0;
    bottom: calc(-40*var(--vw-base));
    width: calc(1480*var(--vw-base));
    height: 1px;
}

.main3-line>div {
    background-color: #83dae2;
}

.main3-bg-out {
    position: relative;
    width: 100%;
    height: 0;
}

.main3-bg {
    position: absolute;
    width: 100%;
    height: calc(527*var(--vw-base));
    background-color: #2c3a44;
}

.nav {
    position: fixed;
    display: none;
    right: calc(20 * var(--vw-base));
    top: calc(440 * var(--vw-base));
    width: calc(56 * var(--vw-base));
    z-index: 999;
}

.nav a {
    cursor: pointer;
}

.nav-g {
    position: relative;
    margin-bottom: calc(40 * var(--vw-base));
    display: flex;
    flex-direction: column;
    gap: calc(18 * var(--vw-base));
}

.nav-g a {
    width: 100%;
    height: calc(37* var(--vw-base));
    background-color: #83dae2;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: calc(20 * var(--vw-base)) 0 calc(19 * var(--vw-base)) calc(20 * var(--vw-base));
    transition: background-color 0.4s ease;
}

.nav-g a:hover {
    background-color: #ff6012;
}

.nav-g a .nav-icon {
    height: calc(23 * var(--vw-base));
    width: auto;
}

.nav-g a .nav-icon img {
    object-fit: contain;
}


.nav-w {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: calc(18 * var(--vw-base));
}

.nav-w a {
    width: 100%;
}

.nav-w a .nav-icon.back {
    width: 94%;
    height: calc(42 * var(--vw-base));
    background-image: url(../img/03/navw-back.png);
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
    transition: background-image 0.4s ease;
}

.nav-w a:hover .nav-icon.back {
    background-image: url(../img/03/navw-back-r.png);
}

.nav-w a .nav-icon.top {
    width: 100%;
    height: calc(42 * var(--vw-base));
    background-image: url(../img/03/navw-top.png);
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
    transition: background-image 0.4s ease;
}

.nav-w a:hover .nav-icon.top {
    background-image: url(../img/03/navw-top-r.png);
}

.shadow-swiper-container .swiper-slide::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    /* 半透明黑色遮罩 */
    z-index: 2;
    /* 遮罩层覆盖图片 */
    pointer-events: none;
    /* 让遮罩层不影响用户操作 */
}

.shadow-swiper-container img {
    filter: blur(5px);
}

.main4 .title-txt span {
    display: inline-block;
}


.nav {
    position: fixed;
    right: calc(20 * var(--vw-base));
    top: calc(440 * var(--vw-base));
    width: calc(55 * var(--vw-base));
    z-index: 999;
}

.nav a {
    cursor: pointer;
}

.nav-g {
    position: relative;
    margin-bottom: calc(40 * var(--vw-base));
    display: flex;
    flex-direction: column;
    gap: calc(18 * var(--vw-base));
}

.nav-g a {
    width: 100%;
    height: calc(37* var(--vw-base));
    background-color: #ff6012;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: calc(20 * var(--vw-base)) 0 calc(19 * var(--vw-base)) calc(20 * var(--vw-base));
    transition: background-color 0.4s ease;
}

.nav-g a:hover {
    background-color: #83dae2;
}

.nav-g a .nav-icon {
    height: calc(23 * var(--vw-base));
    width: auto;
}

.nav-g a .nav-icon img {
    object-fit: contain;
}


.nav-w {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: calc(18 * var(--vw-base));
}

.nav-w a {
    width: 100%;
}

.nav-w a .nav-icon.back {
    width: 94%;
    height: calc(42 * var(--vw-base));
    background-image: url(../img/03/navw-back.png);
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
    transition: background-image 0.4s ease;
}

.nav-w a:hover .nav-icon.back {
    background-image: url(../img/03/navw-back-g.png);
}

.nav-w a .nav-icon.top {
    width: 100%;
    height: calc(42 * var(--vw-base));
    background-image: url(../img/03/navw-top.png);
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
    transition: background-image 0.4s ease;
}

.nav-w a:hover .nav-icon.top {
    background-image: url(../img/03/navw-top-g.png);
}