/* Social Science Lab Page Specific Styles */

/* Hero Section */
.lab-hero {
    background: linear-gradient(135deg, #0f2027 0%, #203a43 50%, #2c5364 100%);
    padding: 5rem 0;
    text-align: center;
}

.lab-hero h1 {
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
    color: #fff;
}

.lab-hero .subtitle {
    font-size: 1.6rem;
    margin-bottom: 1.5rem;
    color: #a0d2eb;
}

.lab-hero .value-proposition {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #e0e0e0;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Product Overview */
.product-overview {
    padding: 4rem 0;
    background-color: #fff;
}

.product-overview h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #2c3e50;
}

.product-overview p {
    text-align: center;
    font-size: 1.1rem;
    color: #555;
    max-width: 800px;
    margin: 0 auto 2rem;
    line-height: 1.8;
}

.product-image-placeholder {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 15px;
    padding: 3rem;
    text-align: center;
    margin: 2rem auto;
    max-width: 800px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.product-image-placeholder p {
    color: #666;
    font-style: italic;
    margin: 0;
}

/* Core Values */
.core-values {
    padding: 4rem 0;
    background-color: #f8f9fa;
}

.core-values h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #2c3e50;
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.value-item {
    background-color: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    text-align: center;
    border: 1px solid #eee;
}

.value-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

.value-item h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.value-item p {
    color: #666;
    line-height: 1.6;
}

/* Product Configurations */
.product-configurations {
    padding: 5rem 0;
    background-color: #fff;
}

.product-configurations h2 {
    text-align: center;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.product-configurations .section-intro {
    text-align: center;
    color: #666;
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.lab-packages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    align-items: stretch;
}

/* 在较大屏幕上显示2x2网格 */
@media (min-width: 992px) {
    .lab-packages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 在超大屏幕上显示1x4网格 */
@media (min-width: 1400px) {
    .lab-packages-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.lab-package-card {
    background-color: #fff;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
    border: 1px solid #eee;
}

.lab-package-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.lab-package-card.featured {
    border: 3px solid #007bff;
    position: relative;
}

.lab-package-card.featured:hover {
    transform: translateY(-10px);
}

.lab-package-card.featured::before {
    content: "推荐";
    position: absolute;
    top: 15px;
    right: -30px;
    background-color: #007bff;
    color: white;
    padding: 5px 30px;
    transform: rotate(45deg);
    font-size: 0.8rem;
    font-weight: bold;
    z-index: 1;
}

.package-header {
    background: linear-gradient(135deg, #1a2a6c 0%, #2a5298 100%);
    color: white;
    padding: 2rem;
    text-align: center;
}

.package-header h3 {
    margin: 0 0 1rem 0;
    font-size: 1.5rem;
}

.package-price {
    font-size: 2.2rem;
    font-weight: 700;
    margin: 1rem 0;
    color: #fff;
}

.package-desc {
    font-size: 1rem;
    opacity: 0.9;
}

.package-features {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.package-features ul {
    list-style: none;
    padding: 0;
    flex-grow: 1;
}

.package-features li {
    padding: 0.8rem 0;
    border-bottom: 1px solid #f0f0f0;
    position: relative;
    padding-left: 1.5rem;
    color: #555;
}

.package-features li:before {
    content: "✓";
    color: #28a745;
    position: absolute;
    left: 0;
    font-weight: bold;
}

.package-features li:last-child {
    border-bottom: none;
    font-weight: 600;
    color: #2c3e50;
}

.package-features li:last-child:before {
    content: "★";
    color: #ffc107;
}

.lab-package-cta {
    padding: 0 1.5rem 1.5rem;
    text-align: center;
}

/* 应用场景区域 */
.application-scenarios {
    margin-top: 3rem;
    padding: 2rem;
    background-color: #f8f9fa;
    border-radius: 15px;
    border: 1px solid #eee;
}

.application-scenarios h3 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 2rem;
    font-size: 1.8rem;
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.scenario-item {
    background-color: #fff;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    border: 1px solid #eee;
}

.scenario-item h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.scenario-item p {
    color: #666;
    line-height: 1.6;
}

/* Technical Features */
.technical-features {
    padding: 4rem 0;
    background-color: #f8f9fa;
}

.technical-features h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #2c3e50;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-item {
    background-color: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    text-align: center;
    border: 1px solid #eee;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0,0,0,0.12);
}

.feature-item h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.feature-item p {
    color: #666;
    line-height: 1.6;
}

/* FAQ Section */
.faq-section {
    padding: 5rem 0;
    background-color: #fff;
}

.faq-section h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #2c3e50;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.faq-item {
    background-color: #f8f9fa;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    border: 1px solid #eee;
}

.faq-item h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.faq-item p {
    color: #555;
    line-height: 1.7;
}

/* Responsive Design */
@media (max-width: 1199px) {
    .lab-hero h1 {
        font-size: 2.3rem;
    }
    
    .lab-hero .subtitle {
        font-size: 1.4rem;
    }
    
    /* 在中等屏幕上保持2列布局 */
    .lab-packages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .lab-hero {
        padding: 3rem 0;
    }
    
    .lab-hero h1 {
        font-size: 2rem;
    }
    
    .lab-hero .subtitle {
        font-size: 1.2rem;
    }
    
    .lab-hero .value-proposition {
        font-size: 1rem;
    }
    
    /* 在小屏幕上改为1列布局 */
    .lab-packages-grid {
        grid-template-columns: 1fr;
    }
    
    .lab-value-grid,
    .features-grid,
    .lab-faq-grid,
    .scenarios-grid {
        grid-template-columns: 1fr;
    }
    
    .lab-package-card.featured {
        transform: scale(1);
    }
    
    .lab-package-card.featured:hover {
        transform: translateY(-10px);
    }
    
    .lab-package-card.featured::before {
        right: -25px;
        padding: 3px 25px;
        font-size: 0.7rem;
    }
    
    .lab-cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .lab-cta-buttons .btn {
        width: 80%;
        max-width: 300px;
    }
}