/* About Page Styles */
.about-page {
    padding-top: 64px;
}

/* Banner Section */
.about-banner {
    position: relative;
    height: 400px;
    background-image: url('images/about_bj.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
}

.banner-title {
    color: white;
    font-size: 56px;
    font-weight: 700;
    letter-spacing: 8px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Section Title */
.section-title {
    font-size: 36px;
    color: #333;
    text-align: center;
    margin-bottom: 20px;
    font-weight: 600;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: #0066cc;
    margin: 15px auto 0;
}

.section-subtitle {
    text-align: center;
    color: #666;
    font-size: 16px;
    margin-bottom: 40px;
}

/* Introduction Section */
.about-intro {
    padding: 80px 0;
    background-color: #fff;
}

.intro-content {
    max-width: 900px;
    margin: 0 auto;
}

.intro-content p {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
    margin-bottom: 20px;
    text-indent: 2em;
}

.intro-content p:last-child {
    margin-bottom: 0;
}

/* Stats Section */
.about-stats {
    padding: 80px 0;
    background: linear-gradient(135deg, #0066cc 0%, #004499 100%);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 30px;
}

.stat-item {
    text-align: center;
    color: white;
}

.stat-number {
    font-size: 48px;
    font-weight: 700;
    display: inline;
    line-height: 1;
}

.stat-unit {
    font-size: 24px;
    font-weight: 400;
    display: inline;
    margin-left: 2px;
}

.stat-label {
    font-size: 16px;
    margin-top: 10px;
    opacity: 0.9;
}

/* Qualifications Section */
.about-qualifications {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.certificate-item {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.certificate-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.certificate-img {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

.certificate-name {
    padding: 12px;
    font-size: 12px;
    color: #333;
    text-align: center;
    line-height: 1.4;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .certificates-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 40px 30px;
    }
    
    .certificates-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .about-banner {
        height: 300px;
    }
    
    .banner-title {
        font-size: 40px;
        letter-spacing: 4px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .about-intro,
    .about-stats,
    .about-qualifications {
        padding: 60px 0;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    
    .stat-number {
        font-size: 36px;
    }
    
    .stat-unit {
        font-size: 18px;
    }
    
    .certificates-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .certificate-img {
        height: 120px;
    }
    
    .certificate-name {
        font-size: 11px;
        padding: 8px;
        height: 50px;
    }
}

@media (max-width: 480px) {
    .about-banner {
        height: 250px;
    }
    
    .banner-title {
        font-size: 32px;
        letter-spacing: 2px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .intro-content p {
        font-size: 14px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .stat-number {
        font-size: 28px;
    }
    
    .stat-unit {
        font-size: 16px;
    }
    
    .stat-label {
        font-size: 14px;
    }
    
    .certificates-grid {
        grid-template-columns: 1fr;
    }
    
    .certificate-img {
        height: 180px;
    }
}