/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Microsoft YaHei", "Heiti SC", "SimHei", sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f9f9f9;
}

.container {
    width: 80%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 头部样式 */
header {
    background-color: #4a89dc;
    color: white;
    padding: 60px 0;
    text-align: center;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

/* 导航样式 */
nav {
    background-color: #333;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
}

nav ul li {
    margin: 0 15px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: #4a89dc;
}

/* 内容区域样式 */
section {
    padding: 60px 0;
}

section:nth-child(even) {
    background-color: #f0f0f0;
}

section h2 {
    text-align: center;
    margin-bottom: 40px;
    color: #4a89dc;
}

/* 技能部分 */
#skills h3 {
    color: #4a89dc;
    margin: 30px 0 15px 0;
    text-align: left;
}

#skills ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 15px;
    margin-bottom: 30px;
}

#skills li {
    background-color: #fff;
    padding: 12px 20px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

#skills li:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Education and Experience sections */
.education-item, .experience-item {
    background-color: white;
    border-radius: 5px;
    padding: 25px;
    margin-bottom: 30px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.education-item:hover, .experience-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.education-item h3, .experience-item h3 {
    color: #4a89dc;
    margin-bottom: 10px;
}

.date {
    color: #777;
    font-style: italic;
    margin-bottom: 10px;
}

.degree {
    font-weight: bold;
    margin-bottom: 10px;
}

.responsibilities {
    margin-left: 20px;
    margin-top: 10px;
}

.responsibilities li {
    margin-bottom: 5px;
}

/* Projects section */
.project {
    background-color: white;
    border-radius: 5px;
    padding: 25px;
    margin-bottom: 30px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.project h3 {
    color: #4a89dc;
    margin-bottom: 15px;
}

/* Contact section */
#contact {
    text-align: center;
}

#contact p {
    margin-bottom: 10px;
}

#contact a {
    color: #4a89dc;
    text-decoration: none;
}

#contact a:hover {
    text-decoration: underline;
}

/* 页脚样式 */
footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 20px 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    nav ul {
        flex-direction: column;
        align-items: center;
    }
    
    nav ul li {
        margin: 5px 0;
    }
    
    #skills ul {
        flex-direction: column;
    }
}