#app{min-height:100vh}*{box-sizing:border-box;margin:0;padding:0}:root{--primary-color:#3b82f6;--primary-hover:#2563eb;--primary-light:#3b82f614;--accent-color:#8b5cf6;--accent-hover:#7c3aed;--cta-color:#3b82f6;--cta-hover:#2563eb;--text-color:#1e293b;--text-secondary:#475569;--text-light:#64748b;--text-heading:#0f172a;--bg-color:#f8fafc;--bg-card:#fff;--bg-elevated:#f1f5f9;--bg-gray:#f1f5f9;--bg-dark:#e2e8f0;--bg-card-glass:#fffc;--bg-code:#1e293b;--border-color:#0f172a14;--border-glow:#3b82f666;--shadow:0 2px 8px #0000000f;--shadow-hover:0 8px 24px #0000001a;--shadow-glow:0 0 20px #3b82f61a;--radius:12px;--radius-sm:8px;--radius-lg:16px;--max-width:1200px;--footer-bg:#f1f5f9;--footer-text:#475569;--footer-heading:#1e293b;--footer-link:#64748b}:root[data-theme=dark]{--primary-light:#3b82f61a;--text-color:#f8fafc;--text-secondary:#94a3b8;--text-light:#64748b;--text-heading:#f8fafc;--bg-color:#0f172a;--bg-card:#1e293b;--bg-elevated:#334155;--bg-gray:#1e293b;--bg-dark:#0f172a;--bg-card-glass:#1e293bb3;--bg-code:#0f172a;--border-color:#94a3b81a;--border-glow:#3b82f64d;--shadow:0 2px 8px #0000004d;--shadow-hover:0 8px 24px #0006;--shadow-glow:0 0 20px #3b82f626;--footer-bg:#0b1120;--footer-text:#94a3b8;--footer-heading:#f8fafc;--footer-link:#64748b}html{scroll-behavior:smooth}body{color:var(--text-color);background:var(--bg-color);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}.section{padding:72px 0}.section-title{text-align:center;color:var(--text-color);letter-spacing:-.5px;margin-bottom:12px;font-size:32px;font-weight:700}.section-subtitle{text-align:center;color:var(--text-secondary);margin-bottom:48px;font-size:16px}.cta-button{background:var(--cta-color);color:#fff;border-radius:var(--radius-sm);cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;padding:12px 28px;font-size:15px;font-weight:500;transition:all .2s;display:inline-flex;box-shadow:0 2px 8px #3b82f64d}.cta-button:hover{background:var(--cta-hover);transform:translateY(-1px);box-shadow:0 4px 16px #3b82f666}.cta-button-primary{background:var(--primary-color);box-shadow:0 2px 8px #3b82f64d}.cta-button-primary:hover{background:var(--primary-hover);box-shadow:0 4px 16px #3b82f666}.cta-button-outline{color:var(--text-color);box-shadow:none;background:0 0;border:1px solid #94a3b84d}.cta-button-outline:hover{border-color:var(--primary-color);color:var(--primary-color);box-shadow:none;background:#3b82f61a}.cta-button-lg{padding:16px 40px;font-size:18px}.cta-button-sm{padding:8px 20px;font-size:13px}.card{background:var(--bg-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:var(--radius);border:1px solid var(--border-color);box-shadow:var(--shadow);transition:all .25s;overflow:hidden}.card:hover{box-shadow:var(--shadow-hover);border-color:var(--border-glow);transform:translateY(-3px)}@media (width<=768px){.container{padding:0 16px}.section{padding:48px 0}.section-title{font-size:24px}.section-subtitle{margin-bottom:32px;font-size:14px}}