/* 关于我页面专用样式 */

.about-main {
    padding-top: 80px;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* 页面标题区域 */
.page-header {
    padding: 60px 0;
    text-align: center;
    background: white;
    margin-bottom: 0;
}

.page-title {
    font-size: 3rem;
    color: #2c3e50;
    font-weight: 300;
    margin-bottom: 20px;
}

.title-divider {
    width: 60px;
    height: 3px;
    background: #3498db;
    margin: 0 auto 20px;
    border-radius: 2px;
}

.page-subtitle {
    font-size: 1.1rem;
    color: #7f8c8d;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* 关于我内容区域 */
.about-content {
    padding: 60px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.about-card {
    background: white;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    height: fit-content;
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.about-card h2 {
    color: #2c3e50;
    margin-bottom: 25px;
    font-size: 1.8rem;
    font-weight: 500;
    border-bottom: 2px solid #ecf0f1;
    padding-bottom: 15px;
}

/* 主要介绍卡片 */
.main-intro {
    grid-row: span 2;
}

.tags-section {
    margin-bottom: 30px;
}

.tag-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    padding: 6px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.intro-text {
    line-height: 1.8;
    color: #666;
}

.intro-text p {
    margin-bottom: 20px;
}

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

.highlight-link {
    color: #3498db;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.highlight-link:hover {
    color: #2980b9;
    text-decoration: underline;
}

/* 技能卡片 */
.skills-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.skill-item {
    text-align: center;
    padding: 20px;
    border-radius: 8px;
    background: #f8f9fa;
    transition: all 0.3s ease;
}

.skill-item:hover {
    background: #e9ecef;
    transform: translateY(-3px);
}

.skill-icon {
    font-size: 2rem;
    margin-bottom: 10px;
}

.skill-item h3 {
    color: #2c3e50;
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.skill-item p {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.4;
}

/* 教育经历 */
.timeline-education {
    position: relative;
}

.timeline-education::before {
    content: '';
    position: absolute;
    left: 80px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #3498db;
}

.edu-item {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
    position: relative;
}

.edu-item::before {
    content: '';
    position: absolute;
    left: 74px;
    top: 50%;
    transform: translateY(-50%);
    width: 14px;
    height: 14px;
    background: #3498db;
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.edu-year {
    width: 70px;
    font-weight: 500;
    color: #3498db;
    font-size: 0.9rem;
}

.edu-content {
    margin-left: 30px;
}

.edu-content h3 {
    color: #2c3e50;
    margin-bottom: 5px;
    font-size: 1.2rem;
}

.edu-content p {
    color: #666;
    font-size: 0.95rem;
}

/* 工作经历 */
.work-item {
    margin-bottom: 25px;
    padding-bottom: 25px;
    border-bottom: 1px solid #ecf0f1;
}

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

.work-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.work-header h3 {
    color: #2c3e50;
    font-size: 1.2rem;
    margin: 0;
}

.work-period {
    color: #7f8c8d;
    font-size: 0.9rem;
    background: #ecf0f1;
    padding: 4px 12px;
    border-radius: 15px;
}

.work-title {
    color: #3498db;
    font-weight: 500;
    margin-bottom: 8px;
}

.work-desc {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* 项目展示 */
.project-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.project-item {
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.project-item:hover {
    background: #e9ecef;
    transform: translateY(-2px);
}

.project-item h3 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.project-item p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
}

.project-link {
    display: inline-block;
    color: #3498db;
    text-decoration: none;
    font-weight: 500;
    padding: 8px 16px;
    border: 2px solid #3498db;
    border-radius: 20px;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.project-link:hover {
    background: #3498db;
    color: white;
    transform: translateY(-2px);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .main-intro {
        grid-row: auto;
    }
}

@media (max-width: 768px) {
    .page-title {
        font-size: 2.5rem;
    }
    
    .about-card {
        padding: 30px 20px;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline-education::before {
        left: 60px;
    }
    
    .edu-item::before {
        left: 54px;
    }
    
    .edu-year {
        width: 50px;
        font-size: 0.8rem;
    }
    
    .edu-content {
        margin-left: 20px;
    }
    
    .work-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 2rem;
    }
    
    .about-card {
        padding: 20px 15px;
    }
    
    .tag-group {
        justify-content: center;
    }
    
    .timeline-education::before {
        display: none;
    }
    
    .edu-item::before {
        display: none;
    }
    
    .edu-item {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
    }
    
    .edu-content {
        margin-left: 0;
        margin-top: 10px;
    }
}