:root{--bg-gradient:linear-gradient(135deg, #0d1117 0%, #161b22 50%, #0a0e14 100%);--card-bg:#161b22bf;--card-border:#ffffff1a;--card-border-hover:#38bdf866;--accent-blue:#0284c7;--accent-cyan:#38bdf8;--alipay-blue:#1677ff;--text-primary:#f0f6fc;--text-secondary:#8b949e;--success-green:#238636}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-gradient);color:var(--text-primary);-webkit-font-smoothing:antialiased;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}a{color:inherit;text-decoration:none}button{cursor:pointer;border:none;outline:none;font-family:inherit}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes modalFadeIn{0%{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}@keyframes pulseBorder{0%,to{border-color:#1677ff4d;box-shadow:0 0 15px #1677ff1a}50%{border-color:#1677ffcc;box-shadow:0 0 25px #1677ff4d}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.animate-spin{animation:1.2s linear infinite spin}