@font-face {
    font-family: "SourceHanSerifCN";
    src: url("../fonts/SourceHanSerifCN-ExtraLight-3.otf") format("opentype");
    font-weight: 200;
}

@font-face {
    font-family: "SourceHanSerifCN";
    src: url("../fonts/SourceHanSerifCN-Light-5.otf") format("opentype");
    font-weight: 300;
}

@font-face {
    font-family: "SourceHanSerifCN";
    src: url("../fonts/SourceHanSerifCN-Regular-1.otf") format("opentype");
    font-weight: 400;
}

@font-face {
    font-family: "SourceHanSerifCN";
    src: url("../fonts/SourceHanSerifCN-Medium-6.otf") format("opentype");
    font-weight: 500;
}

@font-face {
    font-family: "SourceHanSerifCN";
    src: url("../fonts/SourceHanSerifCN-SemiBold-7.otf") format("opentype");
    font-weight: 600;
}

@font-face {
    font-family: "SourceHanSerifCN";
    src: url("../fonts/SourceHanSerifCN-Bold-2.otf") format("opentype");
    font-weight: 700;
}

@font-face {
    font-family: "SourceHanSerifCN";
    src: url("../fonts/SourceHanSerifCN-Heavy-4.otf") format("opentype");
    font-weight: 900;
}


body {
    font-family: "SourceHanSerifCN", "Times New Roman", serif;
    margin: 0;
    overflow-x: hidden;
    line-height: 1.6;
}

.video-wrapper {
    position: relative;
    width: 100%;
    overflow: hidden;
    transition: height 1s ease;
}

.video-wrapper.full-height {
    height: 100vh;
}

.video-wrapper.cropped {
    height: 400px;
}

.bg-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 1;
    transition: opacity 1s ease;
}


.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 10;
    background-color: rgba(255, 255, 255, 0.5);
    padding: 10px 20px;
    box-sizing: border-box;
}

.header h3 {
    font-family: "SourceHanSerifCN", serif;
    text-align: left;
    margin: 0;
    font-size: 20px;
    line-height: 1.4;
    font-weight: 600;
}

.header h6 {
    font-family: "Times New Roman", serif;
    text-align: left;
    margin: 0;
    font-size: 14px;
    line-height: 1.2;
}

.header-line {
    width: 100%;
    height: 2px;
    background-color: #242424;
}


#scroll-indicator {
    position: fixed;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 40px;
    color: #000;
    z-index: 2;
    cursor: pointer;
    animation: bounce 2s infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    50% {
        transform: translateX(-50%) translateY(-15px);
    }
}


.container {
    padding-top: 0;
}

.page-content.hidden {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 1s ease, transform 1s ease;
    pointer-events: none;
}

.page-content.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}


.page-title {
    font-size: 28px;
    text-align: center;
    max-width: 900px;
    margin: 30px auto;
    padding: 0 20px;
    font-weight: 700;
    font-family: "SourceHanSerifCN", serif;
}

@media (max-width: 600px) {
    .page-title {
        text-align: justify;
        text-align-last: left;
        padding: 0 10px;
    }
}


.page-intro {
    text-align: justify;
    font-size: 16px;
    margin-left: 20px;
    margin-right: 20px;
    font-family: "SourceHanSerifCN", serif;
}

.page-text-contact{
    font-family: 'SourceHanSerifCN', serif;
    font-size: 22px;
    color:#242424;
    margin-left: 20px;
    margin-right: 20px;
    text-align: justify;
}

.page-list-title{
    font-size: 20px;
    text-align: justify;
    font-family: "SourceHanSerifCN", serif;
}

.page-cutline{
    display: flex;
    width: 30%;
    height: 1px;
    background-color: #303030;
    justify-content: center;
    margin-bottom: 5px;
    justify-content: center;
    align-items: center;
}

.page-show-video1 {
    width: 90%;
    margin: 0 auto 40px;
    text-align: center;
    justify-content: center;
    align-items: center;
}

.show-video {
    width: 100%;
    height: auto;
    max-height: 70vh;
    object-fit: contain;
    border: 1px solid #000;
    border-radius: 3px;
    justify-content: center;
    align-items: center;
    
}

.arrow {
    color: #FFF;
    text-shadow: #121212;
}



.button {
    display: flex;
    justify-content: center;
    margin: 40px 0;
    gap: 20px;
}

.btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    font-size: 20px;
    color: #242424;
    padding: 10px 20px;
    border: 1px solid #000;
    border-radius: 0px;
    transition: transform 0.3s ease-in-out, border-color 0.3s ease-in-out;
    font-family: "SourceHanSerifCN", serif;
}

.btn img {
    width: 50px;
    height: 50px;
    margin-bottom: 8px;
    transition: transform 0.3s ease-in-out;
}

.btn:hover img {
    transform: scale(1.1);
}

.btn:hover span {
    color: #676767;
}

.btn:hover {
    border-color: #626262;
    transform: scale(1.05);
}


.image-slider {
    position: relative;
    width: 90%;
    max-width: 800px;
    margin: 40px auto;
    overflow: hidden;
    border-radius: 12px;
}

.image-slider .slides {
    display: flex;
    transition: transform 0.6s ease;
}

.image-slider img {
    width: 100%;
    height: auto;
    flex-shrink: 0;
    border-radius: 12px;
}

.dots {
    text-align: center;
    margin-top: 10px;
}

.dot {
    height: 10px;
    width: 10px;
    margin: 0 5px;
    background-color: #bbb;
    border-radius: 50%;
    display: inline-block;
    transition: background-color 0.3s;
    cursor: pointer;
}

.dot.active {
    background-color: #242424;
}

.footer {
    text-align: center;
    padding: 40px 0;
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
    font-size: 14px;
    color: #444;
    font-family: "SourceHanSerifCN", serif;
}

@media (max-width: 600px) {
    .footer {
        text-align: justify;
        text-align-last: left;
        padding: 0 10px;
    }
}