/* ============================================ */
/* Concept Page Styles */
/* ============================================ */

/* Concept Section */
.concept-section {
    background-color: rgba(10, 10, 10, 0.5);
    padding: 80px 0;
}

.concept-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    align-items: stretch;
    border: 1px solid #909090;
}

.concept-image {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-right: 40px;
    background-image: url('../img/top/bg_concept.png?v=20251030');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 400px;
}

.concept-text {
    color: var(--text-white);
    line-height: 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 40px;
    background-color: #0a0a0a;
}

.concept-text p {
    margin-bottom: 30px;
    font-size: 14px;
}

.concept-text p:last-child {
    margin-bottom: 0;
}

/* Concept Video Section */
.concept-video-section {
    background-color: #000000;
    padding: 80px 0;
}

.concept-movie {
    max-width: 1000px;
    margin: 0 auto;
}

.concept-movie > iframe {
    width: 100%;
    height: 500px;
    border-radius: 10px;
    margin-bottom: 40px;
}

.concept-movie-sub {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    list-style: none;
    padding: 0;
    margin: 0 0 40px 0;
}

.concept-movie-sub li {
    aspect-ratio: 16 / 9;
}

.concept-movie-sub iframe {
    width: 100%;
    height: 100%;
    border-radius: 8px;
}

.concept-movie .btn-center {
    text-align: center;
    margin-top: 40px;
}

/* Company Section */
.company-section {
    background-color: #0a0a0a;
    padding: 80px 0;
}

.company__list {
    max-width: 800px;
    margin: 60px auto 0;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid #909090;
    padding: 40px;
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 0;
    align-items: start;
}

.company__list dt {
    color: var(--text-white);
    font-weight: bold;
    font-size: 16px;
    padding: 20px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.company__list dd {
    color: var(--text-white);
    font-size: 14px;
    line-height: 1.8;
    margin: 0;
    padding: 20px 0 20px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* ============================================ */
/* Responsive Design */
/* ============================================ */
@media (max-width: 1024px) {
    .concept-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .concept-image {
        padding-right: 0;
        min-height: 300px;
    }

    .concept-movie-sub {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .concept-section,
    .concept-video-section,
    .company-section {
        padding: 60px 0;
    }

    .concept-text {
        padding: 30px 20px;
        font-size: 14px;
        line-height: 1.8;
        order: 1;
    }

    .concept-text p {
        font-size: 13px;
        margin-bottom: 20px;
    }

    .concept-image {
        min-height: 250px;
        order: 2;
        padding-right: 0;
    }

    .concept-movie > iframe {
        height: 300px;
        margin-bottom: 30px;
    }

    .concept-movie-sub {
        grid-template-columns: 1fr;
        gap: 15px;
        margin-bottom: 30px;
    }

    .company__list {
        padding: 30px 20px;
        margin-top: 40px;
    }

    .company__list dt {
        font-size: 14px;
        margin-top: 25px;
    }

    .company__list dd {
        font-size: 13px;
        margin-top: 10px;
    }
}