:root{--primary-color:#0066ff;--primary-dark:#0055cc;--secondary-color:#2c3e50;--accent-color:#ff6b6b;--background-color:#ffffff;--background-light:#f8f9fa;--text-color:#333333;--text-light:#666666;--border-color:#e0e0e0;--success-color:#28a745;--error-color:#dc3545;--transition-normal:all 0.3s ease;--transition-slow:all 0.5s ease;--shadow-sm:0 2px 4px rgba(0,0,0,0.05);--shadow-md:0 4px 8px rgba(0,0,0,0.1);--shadow-lg:0 8px 16px rgba(0,0,0,0.1);--border-radius-sm:4px;--border-radius-md:8px;--border-radius-lg:16px;--container-width:1200px;--header-height:80px}*{box-sizing:border-box;margin:0;padding:0}body,html{max-width:100vw;overflow-x:hidden;scroll-behavior:smooth}body{color:var(--text-color);background-color:var(--background-color);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}h1,h2,h3,h4,h5,h6{margin-bottom:.5em;font-weight:700;line-height:1.2}section{padding:80px 0}.container{max-width:var(--container-width);margin:0 auto;padding:0 24px}.fadeIn{opacity:0;transform:translateY(20px);transition:opacity .6s ease-out,transform .6s ease-out}.fadeIn.active{opacity:1;transform:translateY(0)}.slideIn{opacity:0;transform:translateX(-30px);transition:opacity .6s ease-out,transform .6s ease-out}.slideIn.active{opacity:1;transform:translateX(0)}@media (max-width:1024px){:root{--container-width:100%}section{padding:60px 0}}@media (max-width:768px){section{padding:80px 0}.container{padding:0 16px}}