/* 全局样式 */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
: #333;
    overflow-x: hidden;
    padding-top: 56px; /* 为固定导航栏预留空间 */
}

/* 主色调 */
.bg-primary {
    background-color: #0d6efd !important;
}

.text-primary {
    color: #0d6efd !important;
}

.border-primary {
    border-color: #0d6efd !important;
}

/* 导航栏样式 */
.navbar {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    padding: 0.8rem 0;
}

.navbar.scrolled {
    background-color: rgba(13, 110, 253, 0.95) !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
: 0.5rem 0;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: all 0.3s ease;
}

.nav-link:hover {
    color: rgba(255, 255, 255, 0.8) !important;
}

/* 卡片悬停效果 */
.card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border-radius: 0.5rem !important;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(13, 110, 253, 0.2);
}

/* 页眉样式 */
header {
    background: linear-gradient(135deg, #0d6efd, #0b5ed7);
    position: relative;
    overflow: hidden;
    padding: 6rem 0;
}

header::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path fill="rgba(255,255,255,0.05)" d="M0,0 L100,0 L100,100 L0,100 Z"></path></svg>');
    background-size: 100px 100px;
    opacity: 0.1;
}

/* 页脚样式 */
footer {
    background-color: #1a1a1a;
    padding: 3rem 0 1.5rem;
}

footer h5 {
    color: #fff;
    font-weight: 600;
    position: relative;
    padding-bottom: 10px;
    margin-bottom: 1.2rem;
}

footer h5::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 2px;
    background-color: #0d6efd;
}

footer a {
    text-decoration: none;
    transition: color 0.3s ease;
}

footer a:hover {
    color0d6efd !important;
}

footer address {
    font-style: normal;
    line-height: 1.6;
}

footer ul {
    padding-left: 0;
}

footer ul li {
    margin-bottom: 0.5rem;
}

/* 分割线样式 */
footer hr {
    opacity: 0.2;
    height: 1px;
    margin: 2rem 0;
    background-color: #6c757d;
    border: none;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .display-4 {
        font-size: 2.5rem;
    }
    
    .lead {
        font-size: 1.1rem;
    }
    
    header {
        padding: 4rem 0;
    }
    
    footer .col-md-4 {
        margin-bottom: 2rem;
    }
}

/* 懒加载样式 */
.lazy {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lazy.loaded {
    opacity: 1;
}