/* Single Product Page Styles */
.product-single-main {
    width: 100%;
    overflow-x: hidden;
    box-sizing: border-box;
}

.product-single-main * {
    box-sizing: border-box;
}

/* Product Banner Section */
.product-banner {
    position: relative;
    width: 100%;
    height: 71.125rem; /* 1138px */
    max-height: 71.125rem;
    overflow: hidden;
}

.product-banner-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.product-banner-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.product-banner-content {
    position: absolute;
    bottom: 6rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    max-width: 70%;
    width: 100%;
    text-align: center;
    color: white;
}

.product-banner-title {
    font-family: 'AlibabaPuHuiTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 2rem;
    text-transform: uppercase;
    line-height: 1;
    background: linear-gradient(180deg, #FF1426 0%, #951426 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.product-banner-description {
    font-family: 'AlibabaPuHuiTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 1.375rem;
    font-weight: 400;
    line-height: 1.6;
    margin: 0;
    max-width: 50rem;
    margin: 0 auto;
}

/* Product Container */
.product-container {
    max-width: 90rem;
    margin: 0 auto;
    padding: 0 3.125rem;
}

/* Product Content Section */
.product-content-section {
    padding: 5rem 0;
    background: white;
}

/* Product Information */
.product-info {
    margin-bottom: 4rem;
}

.product-main-content {
    margin-bottom: 3rem;
}

.product-section-title {
    font-family: 'AlibabaPuHuiTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 2rem;
    color: #333;
    background: linear-gradient(180deg, #FF1426 0%, #951426 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
}

.product-description {
    font-family: 'AlibabaPuHuiTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 1.125rem;
    line-height: 1.8;
    color: #555;
    margin-bottom: 3rem;
}

.product-description p {
    margin-bottom: 1.5rem;
}

/* Product Specifications */
.product-specifications {
    background: #f8f9fa;
    padding: 3rem;
    border-radius: 1rem;
    margin-bottom: 3rem;
}

.product-spec-title {
    font-family: 'AlibabaPuHuiTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #333;
}

.product-spec-content {
    font-size: 1rem;
    line-height: 1.6;
    color: #555;
}

.product-spec-content ul {
    list-style: none;
    padding: 0;
}

.product-spec-content li {
    padding: 0.75rem 0;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    justify-content: space-between;
}

.product-spec-content li:last-child {
    border-bottom: none;
}

/* Product Features */
.product-features {
    margin-bottom: 3rem;
}

.product-feature-title {
    font-family: 'AlibabaPuHuiTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #333;
}

.product-feature-content {
    font-size: 1rem;
    line-height: 1.6;
    color: #555;
}

.product-feature-content ul {
    list-style: none;
    padding: 0;
}

.product-feature-content li {
    padding: 1rem 0;
    display: flex;
    align-items: flex-start;
    position: relative;
}

.product-feature-content li::before {
    content: "✓";
    color: #B32A28;
    font-weight: bold;
    margin-right: 1rem;
    font-size: 1.2rem;
}

/* Product Navigation */
.product-navigation {
    margin-bottom: 4rem;
    text-align: center;
}

.back-to-products-btn {
    display: inline-block;
    background: #B32A28;
    color: white;
    text-decoration: none;
    padding: 1rem 2.5rem;
    border-radius: 2rem;
    font-family: 'AlibabaPuHuiTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 1.125rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.back-to-products-btn:hover {
    background: #951426;
    transform: translateY(-0.125rem);
    box-shadow: 0 0.5rem 1rem rgba(179, 42, 40, 0.3);
    color: white;
    text-decoration: none;
}

/* Related Products */
.related-products {
    border-top: 2px solid #e0e0e0;
    padding-top: 4rem;
}

.related-title {
    font-family: 'AlibabaPuHuiTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 3rem;
    text-align: center;
    color: #333;
    background: linear-gradient(180deg, #FF1426 0%, #951426 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
}

.related-products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
    gap: 2rem;
    max-width: 60rem;
    margin: 0 auto;
}

.related-product-item {
    background: white;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 0.25rem 1rem rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.related-product-item:hover {
    transform: translateY(-0.5rem);
    box-shadow: 0 0.5rem 2rem rgba(0, 0, 0, 0.15);
}

.related-product-image {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    overflow: hidden;
}

.related-product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.related-product-item:hover .related-product-image img {
    transform: scale(1.05);
}

.related-product-content {
    padding: 1.5rem;
    text-align: center;
}

.related-product-title {
    margin-bottom: 1rem;
}

.related-product-title a {
    font-family: 'AlibabaPuHuiTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 1.125rem;
    font-weight: 700;
    color: #333;
    text-decoration: none;
    line-height: 1.3;
}

.related-product-title a:hover {
    color: #B32A28;
}

.related-product-btn {
    display: inline-block;
    background: #B32A28;
    color: white;
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    font-family: 'AlibabaPuHuiTi', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.related-product-btn:hover {
    background: #951426;
    transform: translateY(-0.125rem);
    box-shadow: 0 0.25rem 0.75rem rgba(179, 42, 40, 0.3);
    color: white;
    text-decoration: none;
}

/* Responsive Design */
@media (max-width: 768px) {
    .product-single-main {
        width: 100% !important;
        max-width: 100% !important;
        margin: 0 auto !important;
        padding: 0 !important;
    }

    .product-container {
        padding: 0 4vw;
    }

    .product-banner {
        height: 50vh;
        max-height: 50vh;
    }

    .product-banner-content {
        bottom: 4rem;
        max-width: 85%;
    }

    .product-banner-title {
        font-size: 6vw;
        margin-bottom: 1.5rem;
    }

    .product-banner-description {
        font-size: 3.5vw;
        line-height: 1.5;
    }

    .product-content-section {
        padding: 6vw 0;
    }

    .product-section-title {
        font-size: 5vw;
        margin-bottom: 4vw;
    }

    .product-description {
        font-size: 3.5vw;
        line-height: 1.6;
        margin-bottom: 6vw;
    }

    .product-specifications {
        padding: 4vw;
        margin-bottom: 6vw;
        border-radius: 2vw;
    }

    .product-spec-title,
    .product-feature-title {
        font-size: 4.5vw;
        margin-bottom: 3vw;
    }

    .product-spec-content,
    .product-feature-content {
        font-size: 3.5vw;
        line-height: 1.5;
    }

    .product-spec-content li {
        padding: 2vw 0;
        flex-direction: column;
        align-items: flex-start;
    }

    .product-navigation {
        margin-bottom: 8vw;
    }

    .back-to-products-btn {
        padding: 3vw 6vw;
        font-size: 3.5vw;
        border-radius: 6vw;
    }

    .related-products {
        padding-top: 8vw;
    }

    .related-title {
        font-size: 5vw;
        margin-bottom: 6vw;
    }

    .related-products-grid {
        grid-template-columns: 1fr;
        gap: 4vw;
        max-width: 100%;
    }

    .related-product-content {
        padding: 4vw;
    }

    .related-product-title a {
        font-size: 4vw;
    }

    .related-product-btn {
        padding: 3vw 4vw;
        font-size: 3.5vw;
        border-radius: 6vw;
    }
}