/* About Page Styles */

/* Hero Section */
.hero-section {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.1);
    z-index: 1;
}

.hero-section .container {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: #ffd700;
}

.stat-label {
    display: block;
    font-size: 0.9rem;
    opacity: 0.8;
    margin-top: 0.5rem;
}

.hero-image {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

/* Content Sections */
.content-section {
    padding: 80px 0;
}

.content-card {
    background: white;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: left;
    height: 100%;
}

.content-card h2 {
    color: #667eea;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.content-card .lead {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #6c757d;
}

/* Mission Section */
.mission-section {
    padding: 80px 0;
}

.mission-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    height: auto;
    text-align: center;
    transition: transform 0.3s ease;
}

.mission-card:hover {
    transform: translateY(-5px);
}

.mission-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.mission-icon i {
    font-size: 1.5rem;
    color: white;
}

.mission-card h3 {
    color: #333;
    margin-bottom: 1rem;
    font-weight: 600;
    font-size: 1.3rem;
}

.mission-card p {
    color: #6c757d;
    line-height: 1.6;
    font-size: 0.95rem;
}

/* Capabilities Section */
.capabilities-section {
    padding: 80px 0;
}

.capabilities-section .row {
    align-items: stretch;
}

.capabilities-section .col-lg-6:last-child {
    display: flex;
    align-items: center;
    justify-content: center;
}

.capability-list {
    margin-top: 2rem;
}

.capability-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.capability-item:hover {
    background: #e3f2fd;
    transform: translateX(5px);
}

.capability-item i {
    font-size: 2rem;
    color: #667eea;
    margin-right: 1rem;
    margin-top: 0.5rem;
}

.capability-item h5 {
    margin-bottom: 0.5rem;
    color: #333;
    font-weight: 600;
}

.capability-item p {
    margin-bottom: 0;
    color: #6c757d;
}

.capability-image {
    width: 100%;
    max-height: 900px;
    object-fit: contain;
    object-position: center;
    border-radius: 50px;
}

/* Certifications Section */
.certifications-section {
    padding: 80px 0;
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.cert-item {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.3s ease;
}

.cert-item:hover {
    transform: translateY(-5px);
}

.cert-item i {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.cert-item h5 {
    margin-bottom: 1rem;
    font-weight: 600;
}

.cert-item p {
    margin-bottom: 0;
    opacity: 0.9;
}


/* About-specific CTA Section */
.about-cta-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.about-cta-section h2 {
    color: #333;
    margin-bottom: 1rem;
    font-weight: 600;
}

.about-cta-section .lead {
    color: #6c757d;
    margin-bottom: 2rem;
}

.about-cta-buttons {
    margin-top: 2rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .content-card {
        padding: 2rem;
        margin-bottom: 2rem;
    }

    .mission-card {
        padding: 1.5rem;
    }

    /* 在小屏幕上让左右布局变为上下布局 */
    .content-section .row .col-lg-7,
    .content-section .row .col-lg-5 {
        margin-bottom: 2rem;
    }

    .capability-item {
        flex-direction: column;
        text-align: center;
    }

    .capability-item i {
        margin-right: 0;
        margin-bottom: 1rem;
    }

    .capabilities-section .col-lg-6:last-child {
        display: block;
        margin-top: 2rem;
    }

    .capability-image {
        max-height: 300px;
    }

    .certifications-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 1rem;
    }

    .cert-item {
        padding: 1.5rem;
    }
}