/* 关于我们页面专用样式 */

/* 页面标题区 */
.page-hero {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #f0fdf4 100%);
    padding: 120px 0 80px;
    text-align: center;
}

.page-hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 20px;
}

.page-subtitle {
    font-size: 1.3rem;
    color: #6b7280;
    line-height: 1.6;
    font-style: italic;
}

/* 导航链接激活状态 */
.nav-link.active {
    color: #2563eb;
    font-weight: 600;
}

.nav-link.active::after {
    width: 100%;
}

/* 我们的故事 */
.our-story {
    padding: 80px 0;
    background: white;
}

.story-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: start;
}

.story-paragraphs p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #4b5563;
    margin-bottom: 25px;
}

.story-paragraphs p:last-child {
    font-size: 1.2rem;
    color: #2563eb;
    font-weight: 500;
}

.mission-card {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    text-align: center;
}

.mission-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.mission-icon i {
    font-size: 2rem;
    color: white;
}

.mission-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 20px;
}

.mission-values {
    list-style: none;
    text-align: left;
}

.mission-values li {
    padding: 10px 0;
    color: #4b5563;
    position: relative;
    padding-left: 25px;
    font-weight: 500;
}

.mission-values li::before {
    content: '♦';
    position: absolute;
    left: 0;
    color: #2563eb;
    font-weight: bold;
}

/* 教育哲学 */
.education-philosophy {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.philosophy-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.philosophy-description {
    font-size: 1.2rem;
    color: #4b5563;
    line-height: 1.7;
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.philosophy-card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.philosophy-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.philosophy-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 25px;
}

.philosophy-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

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

.philosophy-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1f2937;
    margin: 0;
}

.philosophy-content p {
    color: #6b7280;
    line-height: 1.6;
    margin-bottom: 20px;
}

.theory-dimensions {
    display: grid;
    gap: 15px;
}

.dimension {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: #f8fafc;
    border-radius: 8px;
    border-left: 4px solid #2563eb;
}

.dimension-name {
    font-weight: 600;
    color: #1f2937;
}

.dimension-desc {
    font-size: 0.9rem;
    color: #6b7280;
}

.cognitive-principles,
.ai-features {
    display: grid;
    gap: 20px;
}

.principle,
.feature {
    padding: 20px;
    background: #f0f9ff;
    border-radius: 8px;
    border-left: 4px solid #10b981;
}

.principle strong,
.feature strong {
    color: #1f2937;
    display: block;
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.principle p,
.feature p {
    color: #4b5563;
    margin: 0;
    line-height: 1.5;
}

/* 团队 */
.our-team {
    padding: 80px 0;
    background: white;
}

.team-intro {
    text-align: center;
    font-size: 1.2rem;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto 60px;
    line-height: 1.6;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.team-member {
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.team-member:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.member-avatar {
    margin-bottom: 20px;
}

.avatar-img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid #e5e7eb;
}

.member-info h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 5px;
}

.member-role {
    color: #2563eb;
    font-weight: 500;
    font-size: 1rem;
    display: block;
    margin-bottom: 15px;
}

.member-bio {
    color: #6b7280;
    line-height: 1.6;
    margin-bottom: 20px;
}

.member-expertise {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.expertise-tag {
    background: #e0f2fe;
    color: #0369a1;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* 社会影响 */
.social-impact {
    padding: 80px 0;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.impact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.impact-text h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 15px;
    margin-top: 30px;
}

.impact-text h3:first-child {
    margin-top: 0;
}

.impact-text p {
    color: #4b5563;
    line-height: 1.7;
    font-size: 1.1rem;
}

.impact-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.impact-stat {
    background: white;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: transform 0.3s ease;
}

.impact-stat:hover {
    transform: translateY(-3px);
}

.stat-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
}

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

.stat-content .stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #2563eb;
    margin-bottom: 5px;
}

.stat-content .stat-label {
    color: #6b7280;
    font-weight: 500;
}

/* 加入我们 */
.join-us {
    padding: 80px 0;
    background: linear-gradient(135deg, #1f2937 0%, #374151 100%);
    color: white;
    text-align: center;
}

.join-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.join-content > p {
    font-size: 1.2rem;
    margin-bottom: 50px;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.join-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.join-option {
    background: rgba(255, 255, 255, 0.1);
    padding: 40px;
    border-radius: 16px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.3s ease;
}

.join-option:hover {
    transform: translateY(-5px);
}

.join-option h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.join-option p {
    margin-bottom: 25px;
    opacity: 0.9;
    line-height: 1.6;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .page-title {
        font-size: 2.5rem;
    }
    
    .story-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .philosophy-grid {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .impact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .impact-stats {
        grid-template-columns: 1fr;
    }
    
    .join-options {
        grid-template-columns: 1fr;
    }
    
    .dimension {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 2rem;
    }
    
    .philosophy-card,
    .team-member,
    .mission-card {
        padding: 25px 20px;
    }
    
    .philosophy-header {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
}