.section {
    padding: 100px 0;
}

.product-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

.product-image {
    width: 100%;
    max-height: 500px;
    object-fit: contain;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    margin-bottom: 3rem;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.product-header {
    text-align: center;
    margin-bottom: 3rem;
}

.product-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1.5rem;
}

.product-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 4rem;
}

.product-actions .btn-custom {
    padding: 1rem 3rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.05rem;
    transition: var(--transition);
    border: none;
    text-decoration: none;
    display: inline-block;
}

.product-actions .btn-primary-custom {
    background: var(--primary);
    color: var(--white);
}

.product-actions .btn-primary-custom:hover {
    background: var(--primary-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.product-actions .btn-outline-custom {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.product-actions .btn-outline-custom:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.product-description-section {
    background: var(--light);
    padding: 4rem;
    border-radius: var(--radius);
}

.product-description-section h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1.5rem;
    text-align: center;
}

.product-description-section p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--gray);
    text-align: justify;
}

@media (max-width: 991px) {
    .product-container {
        max-width: 100%;
    }
    
    .product-image {
        max-height: 400px;
    }

    .product-header h1 {
        font-size: 2rem;
    }

    .section {
        padding: 80px 0;
    }
}

@media (max-width: 768px) {
    .product-container {
        padding: 0 15px;
    }
    
    .product-image {
        max-height: 300px;
    }

    .product-header h1 {
        font-size: 1.75rem;
    }

    .section {
        padding: 60px 0;
    }

    .product-description-section {
        padding: 2rem;
    }

    .product-actions .btn-custom {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .product-header h1 {
        font-size: 1.5rem;
    }

    .product-actions {
        flex-direction: column;
    }

    .product-actions .btn-custom {
        width: 100%;
    }
}

/* 询价模态框样式 */
#inquiryModal .modal-content {
    border-radius: var(--radius);
    border: none;
    box-shadow: var(--shadow-lg);
}

#inquiryModal .modal-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    border-radius: var(--radius) var(--radius) 0 0;
    padding: 1.5rem 2rem;
}

#inquiryModal .modal-header .modal-title {
    font-weight: 600;
    font-size: 1.5rem;
}

#inquiryModal .modal-header .btn-close {
    filter: brightness(0) invert(1);
}

#inquiryModal .modal-body {
    padding: 2rem;
}

#inquiryModal .form-label {
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.5rem;
}

#inquiryModal .form-control {
    border-radius: 8px;
    border: 2px solid #e0e0e0;
    padding: 0.75rem 1rem;
    transition: var(--transition);
}

#inquiryModal .form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.2rem rgba(26, 95, 122, 0.1);
}

#inquiryModal .form-control[readonly] {
    background-color: #f8f9fa;
    cursor: not-allowed;
}

#inquiryModal .btn-block {
    width: 100%;
    padding: 0.875rem 2rem;
    font-weight: 600;
    border-radius: 50px;
}

#inquiryModal .invalid-feedback {
    display: none;
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

#inquiryModal .form-control.is-invalid {
    border-color: #dc3545;
}

#inquiryModal .form-control.is-invalid ~ .invalid-feedback {
    display: block;
}

#inquiryModal .btn-submit {
    width: 100%;
    padding: 0.875rem 2rem;
    font-weight: 600;
    border-radius: 50px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    border: none;
    transition: var(--transition);
    margin-top: 1rem;
}

#inquiryModal .btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(26, 95, 122, 0.3);
    color: var(--white);
}

#inquiryModal .btn-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}