:root{--primary:#2f8ad1;--secondary:#0288D1;--light:#F8FAF9;--dark:#212121}body{font-family:microsoft yahei,sans-serif;background-color:#fafafa;color:#333}.bg-primary-custom{background-color:var(--primary) !important}.text-primary-custom{color:var(--primary) !important}.btn-primary-custom{background-color:var(--primary);border-color:var(--primary);color:#fff}.btn-primary-custom:hover{background-color:#2473b0;color:#fff}.product-card{transition:transform .3s;height:100%}.product-card:hover{transform:translateY(-5px)}.section-title{font-weight:700;margin-bottom:1rem;color:var(--dark)}.benefit-item i{color:var(--primary);font-size:1.2rem;margin-right:.5rem}