/* ============================
   BluetoothDAS Device Spec Section (Improved)
   実写写真 + アイコン付き視認性重視レイアウト
   ============================ */

.das-device-spec {
    background: linear-gradient(135deg, #ffffff 0%, #f5f8fc 100%);
    padding: 80px 0;
    overflow: hidden;
}

.das-device-spec__inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.das-device-spec__title {
    font-size: 2.25rem;
    font-weight: 700;
    color: #1a1a1a;
    text-align: center;
    margin-bottom: 16px;
    letter-spacing: 0.02em;
}

.das-device-spec__subtitle {
    font-size: 1rem;
    color: #5B6B82;
    text-align: center;
    margin-bottom: 60px;
    font-weight: 400;
    letter-spacing: 0.02em;
}

.das-device-spec__lead {
    font-size: 1.125rem;
    color: #3b82f6;
    text-align: center;
    margin-bottom: 60px;
    font-weight: 600;
    letter-spacing: 0.02em;
}

/* Grid Layout */
.das-device-spec__grid {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 60px;
    align-items: start;
}

/* ===== Left: Photos ===== */
.das-device-spec__photos {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.das-device-spec__photo-item {
    margin: 0;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    background: white;
    border: 1px solid #e5e7eb;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.das-device-spec__photo-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

.das-device-spec__photo-item img {
    width: 100%;
    height: auto;
    max-height: 280px;
    display: block;
    object-fit: contain;
    padding: 16px;
    background: #fafafa;
}

.das-device-spec__photo-item figcaption {
    padding: 12px 16px;
    background: #f8fafc;
    color: #5B6B82;
    font-size: 0.875rem;
    font-weight: 500;
    text-align: center;
    border-top: 1px solid #e5e7eb;
}

/* ===== Right: Specs (Enhanced) ===== */
.das-device-spec__specs {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.das-device-spec__spec-block {
    display: flex;
    gap: 16px;
    padding: 24px 20px;
    background: white;
    border-radius: 12px;
    border: 2px solid #e5e7eb;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    min-height: 140px;
}

.das-device-spec__spec-block:hover {
    transform: translateX(4px);
    border-color: #3b82f6;
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.15);
}

/* Highlight block (Product Spec) */
.das-device-spec__spec-block--highlight {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    border-color: #3b82f6;
    border-width: 3px;
    min-height: 180px;
}

/* Size Highlight (Product Spec - サイズ強調) */
.das-device-spec__size-highlight {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin: 16px 0 8px;
    padding: 16px;
    background: white;
    border-radius: 8px;
    border: 2px solid #3b82f6;
}

.das-device-spec__size-label {
    font-size: 0.9375rem;
    font-weight: 600;
    color: #5B6B82;
}

.das-device-spec__size-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2563eb;
    letter-spacing: 0.02em;
}

.das-device-spec__size-note {
    font-size: 0.8125rem;
    color: #6B7280;
    margin: 4px 0 12px 0;
    font-style: italic;
}

/* Emphasis Copy */
.das-device-spec__spec-copy--emphasis {
    font-weight: 600;
    color: #1a1a1a;
    font-style: normal;
    border-left-color: #3b82f6;
    border-left-width: 4px;
}

.das-device-spec__spec-icon {
    flex: 0 0 48px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    border-radius: 12px;
    font-size: 24px;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.das-device-spec__spec-content {
    flex: 1;
}

.das-device-spec__spec-label {
    font-size: 1.125rem;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 12px 0;
}

/* Spec Row (Key-Value Pair) */
.das-device-spec__spec-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.das-device-spec__spec-key {
    font-size: 0.875rem;
    font-weight: 600;
    color: #5B6B82;
    min-width: 80px;
}

.das-device-spec__spec-value {
    font-size: 1rem;
    font-weight: 600;
    color: #2563eb;
}

/* Copy Text (Supplementary) */
.das-device-spec__spec-copy {
    margin: 12px 0 0 0;
    font-size: 0.9375rem;
    color: #4B5563;
    line-height: 1.7;
    font-style: italic;
    padding-left: 12px;
    border-left: 3px solid #93C5FD;
}

.das-device-spec__spec-list {
    list-style: none;
    padding: 0;
    margin: 0 0 12px 0;
}

.das-device-spec__spec-list li {
    font-size: 0.9375rem;
    color: #2D3748;
    padding: 8px 0 8px 20px;
    position: relative;
    line-height: 1.6;
}

.das-device-spec__spec-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: #3b82f6;
    font-weight: 700;
    font-size: 1.25rem;
}

.das-device-spec__spec-list li strong {
    color: #1a1a1a;
    font-weight: 600;
}

/* Simple List (操作・設置カード用) */
.das-device-spec__spec-list--simple li {
    font-size: 1rem;
    font-weight: 500;
    color: #2D3748;
    padding: 6px 0 6px 20px;
}

.das-device-spec__spec-list--simple li::before {
    color: #10B981;
}

.das-device-spec__spec-detail {
    display: block;
    font-size: 0.8125rem;
    color: #6B7280;
    margin-top: 4px;
    line-height: 1.5;
}

.das-device-spec__spec-example {
    color: #6b7280;
    font-size: 0.9375rem;
}

/* ===== Responsive ===== */
@media (max-width: 980px) {
    .das-device-spec {
        padding: 60px 0;
    }
    
    .das-device-spec__title {
        font-size: 1.75rem;
        margin-bottom: 12px;
    }
    
    .das-device-spec__subtitle {
        font-size: 0.9375rem;
        margin-bottom: 40px;
    }
    
    .das-device-spec__grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .das-device-spec__photos {
        gap: 20px;
    }
}

@media (max-width: 640px) {
    .das-device-spec {
        padding: 50px 0;
    }
    
    .das-device-spec__title {
        font-size: 1.5rem;
    }
    
    .das-device-spec__subtitle {
        font-size: 0.875rem;
        margin-bottom: 32px;
    }
    
    .das-device-spec__grid {
        gap: 32px;
    }
    
    .das-device-spec__spec-block {
        flex-direction: column;
        gap: 12px;
        padding: 20px 16px;
        min-height: auto;
    }
    
    .das-device-spec__spec-icon {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
    
    .das-device-spec__spec-label {
        font-size: 1rem;
        margin-bottom: 10px;
    }
    
    .das-device-spec__spec-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
        margin-bottom: 6px;
    }
    
    .das-device-spec__spec-key {
        font-size: 0.8125rem;
        min-width: auto;
    }
    
    .das-device-spec__spec-value {
        font-size: 0.9375rem;
    }
    
    .das-device-spec__spec-copy {
        font-size: 0.875rem;
        margin-top: 10px;
        padding-left: 10px;
    }
    
    .das-device-spec__spec-list {
        margin-bottom: 10px;
    }
    
    .das-device-spec__spec-list li {
        font-size: 0.875rem;
        padding: 6px 0 6px 18px;
    }
    
    .das-device-spec__spec-detail {
        font-size: 0.75rem;
        margin-top: 3px;
    }
}