:root{--primary-color: #8c4b31;--secondary-color: #d4a574;--accent-color: #5d8c31;--text-primary: #333333;--text-secondary: #666666;--bg-light: #f9f9f9;--white: #ffffff}body{margin:0;overflow-x:hidden;font-family:PingFang SC,Microsoft YaHei,sans-serif;color:var(--text-primary)}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:#f1f1f1}::-webkit-scrollbar-thumb{background:var(--primary-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#6b3a26}.container{max-width:1200px;margin:0 auto;padding:0 24px}.section-padding{padding:80px 0}.text-center{text-align:center}.text-primary{color:var(--primary-color)}.text-secondary{color:var(--secondary-color)}.text-white{color:var(--white)}.bg-primary{background-color:var(--primary-color)}.bg-light{background-color:var(--bg-light)}.flex-center{display:flex;justify-content:center;align-items:center}.mb-4{margin-bottom:16px}.mb-8{margin-bottom:32px}.mb-12{margin-bottom:48px}.fade-in{animation:fadeIn .8s ease-in}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}