* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: #000;
}

@font-face {
    font-family: 'Avenir';
    src: url('/font/AvenirNext.ttc') format('truetype-collection'),
        url('/font/AvenirNext.ttc') format('truetype');
    font-style: normal;
    font-display: swap;
    /* 优化字体加载性能 */
}

.pointer {
    cursor: pointer;
}

.scroll-bar-hide {
    /* Firefox */
    scrollbar-width: none;
    /* IE 和 Edge */
    -ms-overflow-style: none;
}

.scroll-bar-hide::-webkit-scrollbar {
  display: none;
}

.main {
    width: 100%;
    height: 100vh;
}

.min-1448 {
    min-width: 1448px;
}

.x-hidden {
    overflow-x: hidden;
}

/* 首屏 */
.index {
    position: relative;
    width: 100%;
    height: 100vh;
    background: #F5EF24;
}

.logo {
    position: relative;
    display: flex;
    align-items: center;
    padding: 28px;
    z-index: 1;
}

.logo-image {
    display: flex;
    width: 36px;
    height: 36px;
    padding: 4.5px 6.943px 4.886px 5.4px;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
    border-radius: 12px;
    border: 1px solid #080808;
}

.logo-image img {
    width: 22px;
}

.logo-text {
    display: flex;
    height: 36px;
    align-items: center;
    margin-left: 11.5px;
}

.logo-text img {
    height: 23.11px;
    margin-top: 5px;
}

.app-text {
    line-height: 32px;
    font-weight: 600;
    font-size: 23px;
    margin: 0 0 0 8px;
}

.music-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 26px;
    right: 26px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid #000;
    z-index: 2;
}

.music {
    width: 18px;
}

.map-mask,
.map-mask-copy {
    position: absolute;
    width: 87%;
    max-width: 2000px;
    aspect-ratio: 4173/2103;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.map-mask {
    overflow: hidden;
}

.map-mask-copy {
    background-image: url('https://static.tgccdn.com/platform/104101l031ljg33u9lo06ggic0g30k000000000s8hvqqs');
    background-size: 100% 100%;
}

.map {
    position: absolute;
    left: -6.8%;
    bottom: 0%;
    width: 109%;
}

.daily-map {
    position: absolute;
    top: 4.7%;
    left: 0.54%;
    width: 10.236%;
}

.tv {
    position: absolute;
    top: 65.9%;
    left: -4.8%;
    width: 18.2%;
    aspect-ratio: 900/675;
    background-image: url('https://static.tgccdn.com/platform/104101l031ljo8o6sli06ggic0g30k000000000tpmsnjk');
    background-size: 100% 100%;
}

.video-wrapper {
    position: relative;
    width: 42%;
    top: 30.1%;
    left: 26%;
    height: 43.6%;
    overflow: hidden;
}

.tv-video {
    position: absolute;
    left: -70%;
    top: -79%;
    width: 250%;
    height: 250%;
}

.computer {
    position: absolute;
    top: 26.14%;
    right: -2%;
    width: 12.43%;
}

.arrow-green {
    position: absolute;
    top: 19.83%;
    right: -0.8%;
    width: 3.44%;
}

.map-text {
    position: absolute;
    top: 0%;
    right: 9%;
    width: 18.37%;
}

/* 关于/学校卡 */
.about,
.school-card {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    transform: translateY(-370vh);
    z-index: 999;
    transition: all ease 0.5s;
}

.about {
    overflow-y: scroll;
}

.about-wrapper {
    display: flex;
    justify-content: space-between;
    margin: 0 auto;
    min-height: 100%;
    max-width: 2000px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.92) 0%, rgba(245, 239, 36, 0.92) 100%);
    box-shadow: 0 4px 4px 0 rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(13px);
}

.about-left {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    margin-left: 135px;
}

.about-right {
    width: 55.56%;
    margin-right: 85px;
    padding-bottom: 35px;
}

.about-big-text {
    font-family: "Avenir";
    color: #000;
    font-size: 80px;
    font-style: normal;
    /* font-weight: 900; */
    line-height: normal;
    margin-top: 135px;
    letter-spacing: -1px;
}

.about-left .logo {
    margin-bottom: 110px;
    padding: 0;
}

/* .about-left .logo .logo-image {
    width: auto;
    height: auto;
    padding: 0;
    border: none;
}

.about-left .logo .logo-image img {
    height: 32px;
}

.about-left .logo .logo-text img {
    width: 103px;
    height: auto;
} */

.about-content {
    font-family: 'Avenir';
    color: #000;
    max-width: 1000px;
    font-size: 54px;
    font-weight: 100;
    font-style: italic;
    line-height: 60px;
    letter-spacing: -1px;
    margin-top: calc(220/824*100vh);
}

.about-description {
    font-family: "PingFang SC";
    font-size: 16px;
    line-height: 24px;
    margin-top: 20px;
}

.about-btn-wrapper {
    display: flex;
}

.about-btn {
    display: flex;
    width: 160px;
    height: 54px;
    padding: 11px 24px;
    align-items: center;
    color: #fff;
    border-radius: 12px;
    background: #000;
    margin: 32px 30px 0 0
}

.about-btn img {
    width: 30px;
    height: 30px;
}

.about-btn-text {
    margin-left: 12px;
    font-family: "PingFang SC";
    font-size: 18px;
    font-weight: 500;
}

.about-line {
    width: 100%;
    height: 1px;
    background: #000;
    margin-top: 60px;
}

.about-compony {
    margin-top: 60px;
}

.compony-text {
    font-size: 0;
    font-weight: 400;
    line-height: 22px;
    margin-bottom: 8px;
}

.compony-text span {
    font-size: 14px;
}

.right-line {
    display: inline-block;
    position: relative;
    margin-right: 32px;
}

.right-line::after {
    display: block;
    content: '';
    position: absolute;
    top: 50%;
    right: -17px;
    transform: translateY(-50%);
    width: 1px;
    height: 14px;
    background: rgba(0, 0, 0, 0.2);
}

.close-btn {
    position: absolute;
    width: 44px;
    height: 44px;
    top: 40px;
    right: 40px;
}

.close-btn img {
    width: 100%;
    height: 100%;
}

/* 学校卡 */
.school-card {
    display: flex;
    align-items: center;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.99) 0%, rgba(45, 136, 255, 0.99) 100%);
}

.card-content {
    width: 90%;
    margin: -100px auto 0;
}

.card-img {
    width: 100%;
}

.card-text {
    text-align: center;
    font-size: 22px;
    font-style: normal;
    font-weight: 400;
    line-height: 34px;
}

.card-logo {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 4px;
}

.card-logo .logo-image {
    background: #F5EF24;
}

.card-logo .logo-text img {
    height: 18px;
    margin-top: 3px;
}

/* 动画 */
.animate-tail {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    transition: all ease 0.5s;
}

.tail-blue .animate-tail {
    background: rgba(70, 164, 246, 0.2);
}

.tail-yellow .animate-tail {
    background: rgba(255, 249, 50, 0.7);
}

.animate-tail[data-index="1"] {
    transform: translateY(-320vh);
}

.animate-tail[data-index="2"] {
    transform: translateY(-270vh);
}

.animate-tail[data-index="3"] {
    transform: translateY(-220vh);
}

.animate-tail[data-index="4"] {
    transform: translateY(-170vh);
}

.animate-tail[data-index="5"] {
    transform: translateY(-120vh);
}

.animate,
.animate[data-index] {
    transform: translateY(0);
}