body {
    font-family: 'Noto Sans SC', sans-serif;
}

.hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0.1;
}

.feature-card {
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.nav-link {
    transition: color 0.3s ease;
}

.nav-link.active {
    color: #3b82f6;
    border-bottom: 2px solid #3b82f6;
}

.company-logo {
    font-family: 'Arial Black', 'Microsoft YaHei', sans-serif;
    letter-spacing: 2px;
}

.fade-in {
    animation: fadeIn 0.6s ease-in-out;
}

html {
    scroll-behavior: smooth;
}

@keyframes fadeIn {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
    .hero-section {
        padding-top: 12rem;
    }
    .mobile-menu {
        display: none;
    }
    .mobile-menu.active {
        display: block;
    }
}