body {
    font-family: 'Noto Sans SC', sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    min-height: 100vh;
    color: #e2e8f0;
    overflow-x: hidden;
}

.hero-bg {
    background: linear-gradient(to right, rgba(15, 23, 42, 0.9) 0%, rgba(30, 41, 59, 0.7) 100%),
        url('https://images.unsplash.com/photo-1536440136628-849c177e76a1?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center 25%;
    position: relative;
}

.filter-btn {
    transition: all 0.3s ease;
}

.filter-btn.active {
    background-color: #f43f5e;
    color: white;
}

.content-card {
    transition: all 0.3s ease;
    transform-origin: center bottom;
}

.content-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
}

/* 移动端优化样式 */
@media (max-width: 768px) {
    .mobile-padding {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .mobile-text-lg {
        font-size: 1.125rem;
        line-height: 1.75rem;
    }

    .mobile-text-xl {
        font-size: 1.25rem;
        line-height: 1.75rem;
    }

    .mobile-btn {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
        min-height: 2.8rem;
    }

    .mobile-btn-sm {
        padding: 0.5rem 0.8rem;
        font-size: 0.8rem;
    }

    .mobile-filter-container {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 0.5rem;
        -ms-overflow-style: none;
        scrollbar-width: none;
    }

    .mobile-filter-container::-webkit-scrollbar {
        display: none;
    }

    .mobile-filter-item {
        flex-shrink: 0;
    }
}