/* 全局设置 */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    padding-top: 56px; /* 为了适应固定导航栏 */
    color: #333;
}

h1, h2, h3, h4, h5 {
    font-weight: 600;
}

/* 导航栏 */
.navbar-brand {
    font-weight: bold;
}

/* Hero Section (顶部个人信息) */
.hero-section {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 80px 0;
}

.profile-img {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    border: 5px solid rgba(255, 255, 255, 0.3);
    object-fit: cover; /* 保证图片不变形 */
}

/* 板块标题 */
.section-title {
    text-align: center;
    margin-bottom: 40px;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: #2a5298;
    margin: 10px auto 0;
}

/* 项目卡片 */
.project-img {
    height: 200px;
    object-fit: cover; /* 裁剪图片适应卡片 */
    background-color: #eee;
}

.card {
    transition: transform 0.2s;
}

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

/* 列表样式 */
.list-group-item {
    border-left: none;
    border-right: none;
}