@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;700;900&family=Yuji+Syuku&display=swap');

body { 
    font-family: 'Noto Sans JP', sans-serif; 
    margin: 0; 
    background-color: #000c1a;
    color: #ffffff;
}

.fixed-background {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background-image: url('https://images.unsplash.com/photo-1553284965-83fd3e82fa5a?q=80&w=2000&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    z-index: -2;
}

.fixed-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(135deg, rgba(0, 10, 30, 0.94) 0%, rgba(0, 30, 70, 0.88) 100%);
    z-index: -1;
}

.scroll-wrapper { position: relative; z-index: 10; }

.page-content { display: none; }
.page-content.active { display: block; animation: simpleFade 0.3s ease-in; }
@keyframes simpleFade { from { opacity: 0; } to { opacity: 1; } }

.nav-link { cursor: pointer; transition: 0.3s; font-weight: 700; border-bottom: 2px solid transparent; white-space: nowrap; }
.nav-link:hover { color: #3b82f6; border-bottom: 2px solid #3b82f6; }

.signature {
    font-family: 'Yuji Syuku', serif;
    font-size: 2rem;
    letter-spacing: 0.1em;
    color: #ffffff;
    margin-top: 1.5rem;
    display: inline-block;
    border-bottom: 1px solid rgba(255,255,255,0.3);
    padding-bottom: 0.2rem;
}

.info-table { width: 100%; border-collapse: collapse; }
.info-table th { width: 30%; background: rgba(255, 255, 255, 0.05); text-align: left; padding: 1.25rem; color: #ffffff; font-weight: 700; border-bottom: 1px solid rgba(255, 255, 255, 0.05); vertical-align: top; }
.info-table td { padding: 1.25rem; border-bottom: 1px solid rgba(255, 255, 255, 0.05); color: #e2e8f0; }

.product-card { background: rgba(255, 255, 255, 0.03); padding: 2.5rem; border-radius: 1.5rem; border: 1px solid rgba(255, 255, 255, 0.1); transition: 0.3s; height: 100%; }

.pdf-btn {
    display: inline-flex;
    align-items: center;
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(239, 68, 68, 0.5);
    color: #fca5a5;
    padding: 0.4rem 0.8rem;
    border-radius: 0.5rem;
    font-size: 0.75rem;
    font-weight: bold;
    margin-top: 0.5rem;
    transition: 0.3s;
}
.pdf-btn:hover {
    background: rgba(239, 68, 68, 0.4);
    color: #ffffff;
}

.form-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 0.85rem 1.25rem;
    border-radius: 0.75rem;
    color: white;
    transition: 0.3s;
}
.form-input:focus {
    outline: none;
    border-color: #3b82f6;
    background: rgba(255, 255, 255, 0.12);
}
.form-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
    color: #93c5fd;
}
.radio-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 0.95rem;
    color: #e2e8f0;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 2rem;
    transition: 0.3s;
}

.form-input-readonly {
    width: 100%;
    background: rgba(255, 255, 255, 0.02);
    border: 1px dashed rgba(255, 255, 255, 0.15);
    padding: 0.85rem 1.25rem;
    border-radius: 0.75rem;
    color: rgba(255, 255, 255, 0.7);

    cursor: not-allowed;

    /* readonly感 */
    opacity: 0.85;
}

.product-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 24px;
    padding: 32px;
    backdrop-filter: blur(12px);

    transition: 0.3s;
}

.product-card:hover {
    transform: translateY(-4px);
    border-color: rgba(59,130,246,0.4);
}

/* メーカー */
.product-company {
    color: #60a5fa;
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

/* タイトル */
.product-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: white;
    margin-top: 12px;
    margin-bottom: 20px;
    line-height: 1.4;
}

/* 説明 */
.product-text {
    color: #d1d5db;
    line-height: 1.9;
    margin-bottom: 28px;
}

/* 通常画像 */
.product-image-wrap {
    aspect-ratio: 1 / 1;

    overflow: hidden;
    border-radius: 18px;

    background: rgba(255,255,255,0.03);

    display: flex;
    align-items: center;
    justify-content: center;

    padding: 16px;
}


/* 通常画像 */
.product-image {
    width: 100%;
    height: 100%;

    object-fit: contain;
    display: block;
}

/* カタログボタン */
.catalog-btn {
    display: inline-block;
    background: #2563eb;
    color: white;
    padding: 12px 24px;
    border-radius: 9999px;
    font-weight: bold;
    transition: 0.3s;
}

.catalog-btn:hover {
    background: #1d4ed8;
}

/* スライダー */
.slider {
    position: relative;

    aspect-ratio: 1 / 1;

    overflow: hidden;
    border-radius: 18px;

    background: rgba(255,255,255,0.03);
}

.slider-track {
    display: flex;
    height: 100%;
    transition: transform 0.4s ease;
}

.slide {
    min-width: 100%;
    height: 100%;

    object-fit: contain;

    padding: 16px;

    flex-shrink: 0;
}
/* ボタン */
.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.5);
    border: none;
    color: white;
    width: 44px;
    height: 44px;
    border-radius: 9999px;
    cursor: pointer;
    font-size: 24px;
    z-index: 10;
}

.slider-btn.prev {
    left: 12px;
}

.slider-btn.next {
    right: 12px;
}

.slider-btn:hover {
    background: rgba(0,0,0,0.8);
}

/* スマホ */
@media (max-width: 768px) {

    .product-card {
        padding: 24px;
    }

    .product-title {
        font-size: 1.4rem;
    }

    .product-image,
    .slide {
        height: 240px;
    }

}