/* 全局样式 */
body {
    margin: 0;
    font-family: "Microsoft YaHei", sans-serif;
    background-color: #f4f4f9;
    color: #333;
    line-height: 1.6;
}

/* 导航栏 */
header {
    background: #222;
    color: #fff;
    padding: 10px 20px;
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.2rem;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 20px;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    transition: 0.3s;
}

.nav-links a:hover {
    color: #00bcd4;
}

/* 区块 */
.section {
    padding: 60px 20px;
}

.alt {
    background: #eaeaea;
}

.container {
    max-width: 900px;
    margin: auto;
}

/* 主页头像 */
.avatar {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    display: block;
    margin: 0 auto 20px auto;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.home-container {
    text-align: center;
}

/* 仓库卡片 */
.repos-list {
    display: grid;
    gap: 20px;
}

.repo-card {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.repo-card h3 a {
    text-decoration: none;
    color: #333;
}

.repo-card h3 a:hover {
    color: #00bcd4;
}

/* 关于页 */
.social-links {
    list-style: none;
    padding: 0;
}

.social-links li {
    margin: 5px 0;
}

.social-links a {
    text-decoration: none;
    color: #00bcd4;
}

.social-links a:hover {
    text-decoration: underline;
}

/* 页脚 */
footer {
    text-align: center;
    padding: 20px;
    background: #222;
    color: #fff;
    margin-top: 40px;
}