/* MOVING IMAGE 页面样式 */
.submenu-container {
    position: fixed;
    top: 194px;
    left: 30px;
    z-index: 90;
    background-color: transparent;
}

.submenu-container .container-fluid {
    padding-left: 0 !important;
}

.submenu {
    display: flex;
    list-style: none;
    justify-content: flex-start;
    gap: 13rem;
    padding-left: 0 !important;
}

.submenu-item {
    font-family: 'Inter', sans-serif;
    font-size: 1.5rem;
    line-height: 150%;
    font-weight: 700;
    letter-spacing: 0.06rem;
    color: #000;
    cursor: pointer;
    transition: color 0.3s ease;
    position: relative;
}

.submenu-item.active {
    color: #0066ff;
}

.submenu-item:hover {
    color: #0066ff;
}

.submenu-item:focus,
.submenu-item:focus-visible,
.submenu-item:hover:focus,
.submenu-item:hover:focus-visible {
    color: #0066ff !important;
    outline: none;
}

.moving-image-main {
    margin-top: 16rem;
    min-height: calc(100vh - 16rem);
}

.content-section {
    display: none;
}

.content-section.active {
    display: block;
}

/* PROJECT 区域样式 */
.project-list {
    padding: 0;
    margin-top: 0;
    perspective: 1000px;
}

.project-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.project-item {
    margin-bottom: 5rem;
    margin-left: 30px;
    margin-right: 30px;
    position: relative;
    background-color: #d4d4d4;
    transform-style: preserve-3d;
    will-change: transform;
    overflow: hidden;
}

.project-video-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    cursor: pointer;
}

.project-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-cover {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: opacity 0.3s ease;
    will-change: transform;
}

.project-image-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.project-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-video-container:hover .project-cover,
.project-video-container.play .project-cover {
    opacity: 0;
}

.moving-image-main .project-info {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    position: relative;
    width: 100%;
    padding-top: 15px;
    height: auto;
}

.project-year {
    font-family: 'Inter', sans-serif;
    font-style: normal;
    font-weight: 400;
    font-size: 64px;
    line-height: 0.8;
    text-align: right;
    letter-spacing: -0.32em;
    color: #000000;
    padding-right: 17px;
}

.moving-image-main .project-title {
    font-family: 'FZChaoCuHei-M10S', serif;
    font-style: normal;
    font-weight: 400;
    font-size: 36px;
    line-height: 1;
    color: #000000;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .submenu-container {
        top: 60px;
    }

    .submenu {
        gap: 1.5rem;
        padding: 1rem 1rem;
        justify-content: flex-start;
    }

    .submenu-item {
        font-size: 0.65rem;
        letter-spacing: 1px;
    }

    .moving-image-main {
        margin-top: 110px;
    }

    .project-video-container,
    .project-image-container {
        aspect-ratio: 9 / 16;
    }

    .play-btn {
        width: 40px;
        height: 40px;
    }

    .play-btn::after {
        border-top: 8px solid transparent;
        border-bottom: 8px solid transparent;
        border-left: 14px solid #fff;
    }

    .project-list {
        padding: 1.5rem 1rem;
    }

    .project-item {
        margin-bottom: 3rem;
    }

    .moving-image-main .project-info {
        padding: 0;
    }

    .moving-image-main .project-year {
        font-size: 32px;
        letter-spacing: -0.25em;
    }

    .moving-image-main .project-title {
        font-size: 1rem;
        letter-spacing: 1px;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .submenu {
        gap: 3rem;
        padding: 1.5rem 2rem;
        justify-content: flex-start;
    }

    .project-list {
        padding: 2rem 2rem;
    }

    .project-video-container,
    .project-image-container {
        aspect-ratio: 16 / 10;
    }

    .moving-image-main .project-year {
        font-size: 48px;
        letter-spacing: -0.3em;
    }

    .moving-image-main .project-title {
        font-size: 2.5rem;
    }
}