/* Hero Section: 画像の上に文字を中央配置する設定 */
.hero-section {
    position: relative;
    width: 100%;
    height: 100vh; /* 画面いっぱいの高さ */
    overflow: hidden;
    display: flex;
    justify-content: center; /* 横方向の中央揃え */
    align-items: center;     /* 縦方向の中央揃え */
}

.hero-bg {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -1;
}

.hero-bg img {
    width: 100%; height: 100%;
    object-fit: cover;
    opacity: 0.6; /* 画像を少し暗くして文字を読みやすく */
}

.hero-content {
    text-align: center;
    z-index: 1;
    color: #fff;
    padding: 0 20px;
}

/* 修正されたアニメーション */
/* タイトル: ふわっと現れる */
.hero-title {
    font-family: var(--font-en);
    font-size: 4rem;
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeInTitle 1.5s ease-out forwards;
}

/* 本文: 少し遅れて下からスライドイン */
.hero-desc {
    font-size: 1rem;
    letter-spacing: 0.1em;
    line-height: 2;
    opacity: 0;
    transform: translateY(20px);
    animation: slideUpText 1.2s ease-out 0.8s forwards; /* 0.8秒遅延 */
}

@keyframes fadeInTitle {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes slideUpText {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* About Section */
.about-section { text-align: center; margin: 60px auto; }
.about-section h2 { font-family: var(--font-en); font-size: 2rem; margin-bottom: 20px; }
.sub-catch { font-size: 1.1rem; margin-bottom: 20px; }

/* Links */
.home-links { display: flex; flex-direction: column; gap: 10px; }
.image-link { position: relative; display: block; height: 150px; overflow: hidden; }
.image-link img { width: 100%; height: 100%; object-fit: cover; opacity: 0.6; transition: opacity 0.3s; }
.image-link:hover img { opacity: 0.9; }
.image-link .link-text {
    position: absolute; top: 50%; left: 20px;
    transform: translateY(-50%); font-family: var(--font-en); font-size: 2rem; z-index: 2;
}

.news-section { text-align: center; padding: 40px; background: #000; margin-top: 40px; border-top: 1px solid #333; }

/* --- CONCEPT セクション --- */
.concept-section {
    background-color: #000;
    color: #fff;
    text-align: center;
    padding: 60px 20px;
}

.concept-title {
    font-family: var(--font-en);
    font-size: 2.5rem;
    letter-spacing: 0.1em;
    margin-bottom: 30px;
}

.concept-text {
    font-size: 0.95rem;
    line-height: 2.2;
    letter-spacing: 0.05em;
}