:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --light-bg: #f8f9fa;
}

body {
    font-family: 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
}

.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 100" fill="%23ffffff" opacity="0.1"><polygon points="1000,100 1000,0 0,100"/></svg>') no-repeat bottom center;
    background-size: cover;
}

.hero-content {
    position: relative;
    z-index: 2;
}


/*导航栏*/
.navbar {
    transition: all 0.3s ease;
	background-color: var(--primary-color) !important;
}
.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}
.navbar.scrolled .navbar-brand,
.navbar.scrolled .nav-link {
    color: var(--primary-color) !important;
}


/*网站底部*/
.footer {
    background-color: var(--primary-color);
    color: white;
    padding: 40px 0 20px;
}