:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;min-width:320px;min-height:100vh;width:100%}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;line-height:1.6;color:#333;background-color:#f8fafc}.App{min-height:100vh;width:100%}.container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%;box-sizing:border-box}.section{padding:80px 0;width:100%}.section-title{font-size:2.5rem;font-weight:700;text-align:center;margin-bottom:20px;color:#1e293b}.section-subtitle{font-size:1.1rem;text-align:center;color:#64748b;margin-bottom:60px;max-width:600px;margin-left:auto;margin-right:auto}.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:8px;font-weight:600;text-decoration:none;transition:all .3s ease;border:none;cursor:pointer;font-size:1rem}.btn-primary{background:linear-gradient(135deg,#3b82f6,#1d4ed8);color:#fff}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 25px #3b82f64d}.btn-secondary{background:#fff;color:#3b82f6;border:2px solid #3b82f6}.btn-secondary:hover{background:#3b82f6;color:#fff;transform:translateY(-2px)}.card{background:#fff;border-radius:16px;padding:32px;box-shadow:0 4px 6px -1px #0000001a;transition:all .3s ease}.card:hover{transform:translateY(-4px);box-shadow:0 20px 25px -5px #0000001a}@media (max-width: 768px){.section{padding:60px 0}.section-title{font-size:2rem}.container{padding:0 16px}.card{padding:24px}.btn{width:100%;justify-content:center;margin-bottom:12px}}@media (max-width: 480px){.container{padding:0 12px}.section{padding:40px 0}.section-title{font-size:1.8rem}.section-subtitle{font-size:1rem}.card{padding:20px}}