/* About Page Specific Styles */

/* 英雄区域 */
.about-hero {
    background: linear-gradient(135deg, var(--gradient-primary), var(--gradient-secondary));
    padding: 6rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.about-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="10" cy="60" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="90" cy="40" r="0.5" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    font-weight: 400;
}

.hero-description {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
}

/* 使命部分 */
.mission-section {
    padding: 6rem 2rem;
    background: var(--bg);
}

.mission-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.mission-text {
    padding-right: 2rem;
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.mission-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 3rem;
}

.mission-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
}

.mission-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-placeholder {
    background: var(--gradient-primary);
    border-radius: 20px;
    padding: 4rem;
    text-align: center;
    color: white;
    width: 100%;
    max-width: 400px;
}

.image-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    display: block;
}

.image-placeholder p {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0;
}

/* 价值观部分 */
.values-section {
    padding: 6rem 2rem;
    background: var(--bg-secondary);
}

.values-section .section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.value-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.value-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.value-card:hover::before {
    opacity: 0.05;
}

.value-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.value-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 2;
}

.value-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    position: relative;
    z-index: 2;
}

.value-description {
    color: var(--text-secondary);
    line-height: 1.6;
    position: relative;
    z-index: 2;
}

/* 团队部分 */
.team-section {
    padding: 6rem 2rem;
    background: var(--bg);
}

.team-section .section-title {
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.2rem;
    margin-bottom: 4rem;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.team-member {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.team-member:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.member-avatar {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.avatar-icon {
    font-size: 2.5rem;
}

.member-name {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.member-role {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.member-bio {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.9rem;
}

/* 历史部分 */
.history-section {
    padding: 6rem 2rem;
    background: var(--bg-secondary);
}

.history-section .section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-primary);
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    align-items: center;
    margin-bottom: 3rem;
    position: relative;
}

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

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

.timeline-year {
    background: var(--gradient-primary);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 25px;
    font-weight: 700;
    font-size: 1.1rem;
    min-width: 100px;
    text-align: center;
    position: relative;
    z-index: 2;
}

.timeline-content {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 2rem;
    margin: 0 2rem;
    flex: 1;
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 50%;
    width: 0;
    height: 0;
    border: 10px solid transparent;
}

.timeline-item:nth-child(odd) .timeline-content::before {
    left: -20px;
    border-right-color: var(--border-color);
}

.timeline-item:nth-child(even) .timeline-content::before {
    right: -20px;
    border-left-color: var(--border-color);
}

.timeline-content h3 {
    color: var(--text-primary);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* CTA 部分 */
.cta-section {
    padding: 6rem 2rem;
    background: linear-gradient(135deg, var(--gradient-primary), var(--gradient-secondary));
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="10" cy="60" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="90" cy="40" r="0.5" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.cta-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-size: 3rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.cta-description {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 3rem;
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-btn {
    padding: 1rem 2rem;
    border-radius: 25px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
}

.cta-btn.primary {
    background: white;
    color: var(--primary-color);
    border: 2px solid white;
}

.cta-btn.primary:hover {
    background: transparent;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
}

.cta-btn.secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.cta-btn.secondary:hover {
    background: white;
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .mission-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .mission-text {
        padding-right: 0;
    }
    
    .mission-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        flex-direction: column !important;
        align-items: flex-start;
        padding-left: 3rem;
    }
    
    .timeline-year {
        position: absolute;
        left: -2.5rem;
        top: 0;
    }
    
    .timeline-content {
        margin: 0;
        margin-top: 1rem;
    }
    
    .timeline-content::before {
        display: none;
    }
    
    .cta-title {
        font-size: 2.5rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .about-hero {
        padding: 4rem 1rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .mission-section,
    .values-section,
    .team-section,
    .history-section,
    .cta-section {
        padding: 4rem 1rem;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .value-card,
    .team-member {
        padding: 2rem;
    }
    
    .timeline-item {
        padding-left: 2.5rem;
    }
    
    .timeline-year {
        left: -2rem;
        padding: 0.75rem 1rem;
        font-size: 1rem;
    }
}