*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #1f4f73;--secondary-color: #327492;--accent-color: #85b1c4;--text-dark: #333;--text-light: #666;--bg-light: #f8f9fa;--white: #ffffff}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Helvetica,Arial,sans-serif;line-height:1.6;color:var(--text-dark);background-color:var(--white);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#app{width:100%;min-height:100vh}a{text-decoration:none;color:inherit}img{max-width:100%;height:auto;display:block}button{font-family:inherit;cursor:pointer;outline:none}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:#f1f1f1}::-webkit-scrollbar-thumb{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));border-radius:5px}::-webkit-scrollbar-thumb:hover{background:linear-gradient(135deg,var(--secondary-color),var(--primary-color))}.container{max-width:1400px;margin:0 auto;padding:0 2rem}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.fade-in{animation:fadeIn .5s ease-in}