* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: #2C3E50;
    background: #F7F9F9;
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

.header {
    background: #1A5276;
    color: white;
    padding: 60px 40px;
}

.profile {
    display: flex;
    align-items: center;
    gap: 30px;
}

.profile-image img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    border: 4px solid white;
    object-fit: cover;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.profile-info h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.job-title {
    font-size: 1.3rem;
    opacity: 0.9;
    margin-bottom: 20px;
}

.contact-info {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.contact-info span {
    font-size: 0.95rem;
}

.main-content {
    padding: 50px 40px;
}

.section {
    margin-bottom: 50px;
}

.section-title {
    font-size: 1.6rem;
    color: #1A5276;
    margin-bottom: 25px;
    padding-bottom: 10px;
    border-bottom: 3px solid #1A5276;
    display: inline-block;
}

.timeline {
    position: relative;
    padding-left: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, #1A5276, #2980B9);
}

.timeline-item {
    position: relative;
    margin-bottom: 35px;
    padding-left: 25px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -34px;
    top: 5px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #1A5276;
    border: 3px solid white;
    box-shadow: 0 0 0 3px #1A5276;
}

.timeline-date {
    font-size: 0.9rem;
    color: #2980B9;
    font-weight: 600;
    margin-bottom: 8px;
}

.timeline-content h3 {
    font-size: 1.25rem;
    color: #2C3E50;
    margin-bottom: 5px;
}

.company {
    color: #2C3E50;
    font-weight: 500;
    margin-bottom: 10px;
}

.timeline-content ul {
    margin-left: 20px;
    color: #2C3E50;
}

.timeline-content li {
    margin-bottom: 5px;
}

.education-item {
    display: flex;
    gap: 20px;
    padding: 20px;
    background: #f8f9ff;
    border-radius: 12px;
    border-left: 4px solid #2980B9;
}

.education-date {
    min-width: 100px;
    font-weight: 600;
    color: #2980B9;
}

.education-content h3 {
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.school {
    color: #2C3E50;
    font-weight: 500;
    margin-bottom: 5px;
}

.skills {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.skill-category h3 {
    font-size: 1.1rem;
    color: #2C3E50;
    margin-bottom: 15px;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    background: #2980B9;
    color: white;
    padding: 8px 18px;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(41, 128, 185, 0.4);
}

.projects {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.project-card {
    background: #f8f9ff;
    border-radius: 15px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.project-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.project-info {
    padding: 20px;
}

.project-info h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: #2C3E50;
}

.project-info p {
    color: #2C3E50;
    margin-bottom: 15px;
    font-size: 0.95rem;
}

.project-link {
    color: #1A5276;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.project-link:hover {
    color: #2980B9;
}

.footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 25px;
    font-size: 0.95rem;
}

@media (max-width: 768px) {
    .profile {
        flex-direction: column;
        text-align: center;
    }

    .contact-info {
        justify-content: center;
    }

    .header {
        padding: 40px 20px;
    }

    .main-content {
        padding: 30px 20px;
    }

    .profile-info h1 {
        font-size: 2rem;
    }

    .education-item {
        flex-direction: column;
    }

    .projects {
        grid-template-columns: 1fr;
    }
}