/* About Page Styles */

/* Hero Section */
.about-hero-section {
    padding: 100px 0 60px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: white;
    margin-top: 80px;
}

.about-hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: white;
}

.about-hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 30px;
    opacity: 0.95;
}

/* About Intro Section */
.about-intro-section {
    padding: 80px 0;
    background: var(--bg-primary);
}

.section-title-main {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.about-subtitle {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 30px;
    margin-bottom: 20px;
}

.about-intro-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.about-intro-image-mobile {
    margin-bottom: 30px;
}

/* Mission Vision Section */
.mission-vision-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.mission-card {
    background: var(--bg-primary);
    padding: 40px 30px;
    border-radius: 15px;
    height: 100%;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.mission-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.mission-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    color: white;
    font-size: 2.5rem;
}

.mission-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.mission-card p {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1rem;
}

/* Advantages Section */
.advantages-section {
    padding: 80px 0;
    background: var(--bg-primary);
}

.section-title-wrapper {
    margin-bottom: 60px;
}

.advantage-card {
    background: var(--bg-secondary);
    padding: 40px 30px;
    border-radius: 15px;
    height: 100%;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-left: 4px solid var(--primary-color);
    position: relative;
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.advantage-number {
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 15px;
    opacity: 0.3;
}

.advantage-card h4 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.advantage-card p {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1rem;
}

/* Timeline Section */
.timeline-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-primary);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 60px;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-year {
    width: 120px;
    height: 120px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    position: relative;
    z-index: 2;
    flex-shrink: 0;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

.timeline-content {
    flex: 1;
    background: var(--bg-primary);
    padding: 30px;
    border-radius: 15px;
    margin: 0 40px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.timeline-content h4 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.timeline-content p {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1rem;
    margin: 0;
}

/* Professional Team Section */
.professional-team-section {
    padding: 80px 0;
    background: var(--bg-primary);
}

.professional-team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.professional-team-member {
    background: var(--bg-secondary);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.professional-team-member:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.team-member-avatar {
    width: 120px;
    height: 120px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 3rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

.team-member-name {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.team-member-title {
    color: var(--primary-color);
    font-size: 1rem;
    margin-bottom: 15px;
    font-weight: 500;
}

.team-member-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

/* Contact & Map Section */
.contact-map-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.contact-info-card {
    background: var(--bg-primary);
    padding: 40px;
    border-radius: 15px;
    height: 100%;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.contact-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.3rem;
    flex-shrink: 0;
    margin-right: 20px;
}

.contact-details h4 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.contact-details p {
    color: var(--text-secondary);
    margin-bottom: 5px;
    line-height: 1.6;
}

.contact-details a {
    color: var(--primary-color);
    text-decoration: none;
}

.contact-details a:hover {
    color: var(--accent-color);
}

/* Baidu Map Container */
.map-container {
    width: 100%;
    height: 500px;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

#baiduMap {
    width: 100%;
    height: 100%;
}

/* Responsive Design */
@media (max-width: 992px) {
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item {
        flex-direction: row !important;
        padding-left: 80px;
    }
    
    .timeline-year {
        position: absolute;
        left: 0;
    }
    
    .timeline-content {
        margin-left: 0;
        margin-right: 0;
    }
}

@media (max-width: 768px) {
    .about-hero-title {
        font-size: 2.5rem;
    }
    
    .about-hero-subtitle {
        font-size: 1.2rem;
    }
    
    .section-title-main {
        font-size: 2rem;
    }
    
    .professional-team-grid {
        grid-template-columns: 1fr;
    }
    
    .map-container {
        height: 400px;
    }
    
    .contact-info-card {
        margin-bottom: 30px;
    }
    
    .advantage-card {
        margin-bottom: 20px;
    }
}

@media (max-width: 576px) {
    .about-hero-section {
        padding: 100px 0 60px;
    }
    
    .about-hero-title {
        font-size: 2rem;
    }
    
    .mission-card,
    .advantage-card {
        padding: 30px 20px;
    }
    
    .timeline-year {
        width: 80px;
        height: 80px;
        font-size: 1.2rem;
    }
    
    .timeline-item {
        padding-left: 60px;
    }
}