body {
    height: auto;
    background-color: #000;
    color: #fff;
    --solution-size-24: clamp(20px, 1.25vw, 24px);
}

.nowrap {
    white-space: nowrap;
}

.header {
    background-color: #000;
    color: #fff;
}

.header .topmenus .item>a {
    color: #fff;
}

.header .topmenus .esg-dropdown {
    background-color: #000;
    border-top: 1px solid #fff;
}

.header .topmenus .esg-dropdown a {
    color: #fff;
}

.header .rightpart span {
    color: #fff;
}

.header .wrap .wrap_zk {
    background-color: #000;
}

.header .wrap .wrap_zk a {
    color: #fff;
}

.header .logo img {
    display: none;
}

.header .logo .white-logo {
    display: block;
}

.foot .bottom {
    background-color: #000;
}

.foot .footxt {
    border-top: none;
}

.foot .bottom a {
    color: #fff;
}

.section-title {
    font-size: clamp(26px, 2.5vw, 48px);
    font-weight: bold;
    line-height: 1.3;
}

.anniversary-page {
    position: relative;
}

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

.anniversary-page .body-bg img {
    width: 100%;
    height: auto;
}

.anniversary-banner {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 100%;
    height: 100vh;
    padding-top: 90px;
    text-align: center;
}

.anniversary-banner .ct {
    position: relative;
    z-index: 2;
    height: auto;
}

.anniversary-banner .b-title {
    font-size: clamp(30px, 3.7vw, 72px);
    font-weight: bold;
    line-height: 1;
}

.anniversary-banner .s-title {
    margin-top: 20px;
    font-weight: normal;
    font-size: clamp(26px, 2.7vw, 52px);
}

.anniversary-banner .text {
    width: min(985px, 100%);
    margin: 0 auto;
    margin-top: 40px;
}

.anniversary-banner .other-info {
    margin-top: clamp(50px, 7.8vw, 150px);
    font-size: var(--solution-size-24);
    font-weight: bold;
}

.anniversary-banner .other-info .info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.anniversary-banner .bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.anniversary-banner .bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
}

.anniversary-banner .progress-line {
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    z-index: 2;
    width: 1px;
    height: clamp(50px, 5.2vw, 100px);
    background-color: rgba(255, 255, 255, .5);
}

.anniversary-banner .progress-line .line {
    width: 100%;
    height: 0;
    background-color: #fff;
    animation: fullHeightAn 5s infinite linear;
}

@keyframes fullHeightAn {
    0% {
        height: 0;
    }

    100% {
        height: 100%;
    }
}

.plenary {
    position: relative;
}

.plenary .s-title {
    position: relative;
    z-index: 2;
    padding-top: clamp(60px, 6.25vw, 120px);
    text-align: center;
}

.plenary .plenary-swiper {
    position: relative;
    z-index: 2;
    margin-top: 20px;
}

.plenary .plenary-swiper::after {
    content: '';
    position: absolute;
    bottom: 0;
    z-index: 3;
    width: 100%;
    height: clamp(50px, 13.88vw, 150px);
    background-image: linear-gradient(to top, #000, #00000000);
}

.plenary .plenary-swiper .swiper-slide {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.plenary .plenary-swiper .swiper-slide .introduction {
    flex: 1;
}


.plenary .plenary-swiper .swiper-slide .title {
    font-size: clamp(22px, 1.875vw, 36px);
    font-weight: bold;
    line-height: 1;
}

.plenary .plenary-swiper .swiper-slide .text {
    margin-top: 30px;
    font-size: clamp(18px, 1vw, 20px);
    line-height: 1.6;
}

.plenary .plenary-swiper .swiper-slide .portrait {
    height: clamp(300px, 25.78vw, 495px);
    margin-right: clamp(50px, 7.8vw, 150px);
}

.plenary .plenary-swiper .swiper-slide .portrait img {
    width: auto;
    height: 100%;
}

.plenary .bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
}

.plenary .bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 20%;
    background-image: linear-gradient(to bottom, #000, #00000000);
}

.plenary .bg img {
    width: 100%;
    height: auto;
}

.plenary .plenary-btn-list {
    position: relative;
    z-index: 2;
    display: flex;
    gap: 40px;
    width: 100%;
}

.plenary .plenary-btn-list .btn {
    flex: 1;
    padding: 10px 0;
    border-top: 2px solid #fff;
    font-size: 20px;
    opacity: .4;
    cursor: pointer;
    transition: opacity .5s;
}

.plenary .plenary-btn-list .btn:hover {
    opacity: 1;
}

.plenary .plenary-btn-list .btn.active {
    opacity: 1;
}

.plenary .other-people-list {
    position: relative;
    z-index: 2;
    display: flex;
    gap: 40px;
    margin-top: clamp(25px, 3.38vw, 65px);
}

.plenary .other-people-list .item {
    flex: 1;
}

.plenary .other-people-list .item .pic {
    width: 100%;
    aspect-ratio: 45 / 28;
    border-radius: 20px;
    overflow: hidden;
}

.plenary .other-people-list .item .pic img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.plenary .other-people-list .item .title {
    margin-top: clamp(15px, 1.56vw, 30px);
    font-size: var(--solution-size-24);
    font-weight: bold;
    line-height: 1.2;
}

.plenary .other-people-list .item .info {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: clamp(10px, .78vw, 15px);
}

.plenary .other-people-list .item .info .portrait {
    width: clamp(40px, 2.6vw, 50px);
    height: clamp(40px, 2.6vw, 50px);
    border-radius: 50%;
    overflow: hidden;
}

.plenary .other-people-list .item .info .portrait img {
    width: 100%;
    height: 100%;
}

.plenary .other-people-list .item .info .text {
    flex: 1;
    line-height: 1.75;
}

.speaker {
    position: relative;
    z-index: 2;
    padding-top: clamp(50px, 7.29vw, 140px);
}

.speaker .section-title {
    text-align: center;
}

.speaker .speaker-list {
    --gap: 40px;
    display: flex;
    flex-wrap: wrap;
    gap: 50px var(--gap);
    justify-content: center;
    margin-top: clamp(25px, 1.82vw, 35px);
    perspective: 1000000px;
}

.speaker .speaker-list .item {
    width: calc((100% - var(--gap) * 3) / 4);
    backface-visibility: hidden;
}

.speaker .speaker-list .item .portrait {
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: 20px;
    overflow: hidden;
}

.speaker .speaker-list .item .info {
    margin-top: clamp(15px, 1.56vw, 30px);
}

.speaker .speaker-list .item .name {
    font-size: var(--solution-size-24);
    font-weight: bold;
    line-height: 1.2;
}

.speaker .speaker-list .item .text {
    margin-top: clamp(10px, .78vw, 15px);
    line-height: 1.625;
}

.workshop {
    position: relative;
    z-index: 2;
    padding-top: clamp(50px, 6.77vw, 130px);
}

.workshop .ct {
    position: relative;
    z-index: 3;
}

.workshop .section-title {
    text-align: center;
}

.workshop .workshop-text {
    width: min(750px, 100%);
    margin: 0 auto;
    margin-top: clamp(20px, 1.3vw, 25px);
    text-align: center;
}

.workshop .topic-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    row-gap: 50px;
    justify-content: center;
    margin-top: clamp(25px, 2.6vw, 50px);
}

.workshop .topic-list .top {
    position: relative;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    color: #3D99FF;
}

.workshop .topic-list .top::after {
    content: '';
    flex: 1;
    position: relative;
    z-index: 3;
    height: 1px;
    background-color: #3D99FF;
}

.workshop .topic-list .top p {
    position: relative;
    padding: clamp(5px, .5vw, 10px) clamp(15px, 1.56vw, 30px);
    border: 1px solid #3D99FF;
    border-radius: 10000px;
}

.workshop .topic-list .top p::after {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: #3D99FF;
    box-shadow: 0 0 0 2px #000;
}

.workshop .topic-list .text {
    width: min(400px, 100%);
    padding-left: 15px;
    margin-top: clamp(20px, 1.56vw, 30px);
}

.workshop .topic-list .text .topic-text {
    font-size: 18px;
    font-weight: bold;
    line-height: 1.55;
}

.workshop .topic-list .text .speaker-text {
    margin-top: 5px;
    line-height: 1.625;
}

.factory-tour {
    position: relative;
    z-index: 2;
    padding-top: clamp(50px, 6.77vw, 130px);
}

.factory-tour .section-title {
    text-align: center;
}

.factory-tour .factory-list {
    display: flex;
    gap: 40px;
    margin-top: clamp(30px, 2.34vw, 45px);
}

.factory-tour .factory-list .pic {
    flex: 1;
    aspect-ratio: 140 / 79;
    border-radius: 20px;
    overflow: hidden;
}

.factory-tour .factory-list .pic img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.view-detail {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    /* height: clamp(200px, 45.55vw, 875px); */
    height: clamp(130px, 23.43vw, 450px);
    padding-bottom: clamp(50px, 6.77vw, 130px);
}

.view-detail .btn {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: center;
    display: none;
}

.view-detail .btn a {
    display: block;
    padding: clamp(10px, 1.56vw, 30px) clamp(30px, 3.645vw, 70px);
    border: 1px solid rgba(255, 255, 255, .4);
    border-radius: 10000px;
    color: #fff;
    font-size: 14px;
    font-weight: bold;
    transition: background-color .5s;
}

.view-detail .btn a:hover {
    background-color: #39A9AE;
}

.view-detail .bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.view-detail .bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.loading {
    --track: #fff;
    --bar: #1da63b;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 5;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, .4);
}

.spinner {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    border: 3px solid var(--track);
    border-top-color: var(--bar);
    animation: spin 0.9s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 尊重「减少动态效果」的系统偏好 */
@media (prefers-reduced-motion: reduce) {
    .spinner {
        animation-duration: 2s;
    }
}

.canvas-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.canvas-bg canvas {
    width: 100%;
    height: 100%;
}