/* ===== 基本スタイル ===== */
body {
    font-family: 'Helvetica Neue', 'Arial', 'Hiragino Sans', 'Meiryo', sans-serif;
    line-height: 1.7;
    margin: 0;
    padding: 0;
    color: #f0f0f0;
    background-color: #0c0c1e; /* 暗い夜空のような色 */
    overflow-x: hidden;
}

/* ===== 雨の背景 ===== */
.rain-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}
.rain-drop {
    position: absolute;
    bottom: 100%;
    width: 2px;
    height: 80px;
    background: linear-gradient(to top, rgba(255, 255, 255, 0), rgba(150, 200, 255, 0.6));
    animation: fall linear infinite;
}
@keyframes fall {
    to { transform: translateY(100vh); }
}

/* ===== ヒーローセクション ===== */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    padding: 0;
    background: none;
    border: none;
    box-shadow: none;
}
.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('Images/logo-bg.gif');
    background-size: cover;
    background-position: center;
    filter: blur(8px) brightness(0.65) opacity(0.45); 
    transform: scale(1.1);
    z-index: 1;
}
.hero-title {
    position: relative;
    z-index: 2;
    text-align: center;
    opacity: 0;
    animation: fadeInTitle 2s ease-out 0.5s forwards;
}
.hero-title img {
    max-width: 80%;
    height: auto;
}
@keyframes fadeInTitle {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ===== メインコンテンツ ===== */
main {
    padding: 1rem;
    max-width: 900px;
    margin: 20px auto;
}

section {
    background: rgba(40, 40, 70, 0.85);
    backdrop-filter: blur(5px);
    margin-bottom: 2rem;
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

h2 {
    color: #aaccff;
    border-bottom: 2px solid #4a6dff;
    padding-bottom: 10px;
    margin-top: 0;
}

ul {
    padding-left: 20px;
}

/* ===== スライドショー ===== */
.swiper-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    margin: 20px 0;
}
.swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 5px;
}
.swiper-pagination-bullet-active {
    background: #fff !important;
}
.swiper-button-next, .swiper-button-prev {
    color: #fff !important;
}

/* ===== 動画 ===== */
#movie {
    text-align: center;
}
iframe {
    max-width: 100%;
    border-radius: 5px;
}

/* ===== フッター ===== */
footer {
    text-align: center;
    padding: 2rem 0;
    background-color: rgba(26, 26, 26, 0.8);
    color: #fff;
    font-size: 0.9em;
}