*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}:root{--color-primary: #2563eb;--color-primary-dark: #1d4ed8;--color-primary-light: #eff6ff;--color-text: #1e293b;--color-text-secondary: #64748b;--color-bg: #ffffff;--color-bg-alt: #f8fafc;--color-bg-card: #ffffff;--color-border: #e2e8f0;--color-success: #16a34a;--color-success-light: #f0fdf4;--color-warning: #ea580c;--color-warning-light: #fff7ed;--color-purple: #7c3aed;--color-purple-light: #f5f3ff;--color-red: #dc2626;--color-red-light: #fef2f2;--color-teal: #059669;--color-teal-light: #ecfdf5;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -2px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -4px rgba(0, 0, 0, .1);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 8px 10px -6px rgba(0, 0, 0, .1);--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px}html{scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-family);color:var(--color-text);background:var(--color-bg);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.container{max-width:1200px;margin:0 auto;padding:0 24px}.section-header{text-align:center;max-width:640px;margin:0 auto 56px}.section-header h2{font-size:2.25rem;font-weight:800;letter-spacing:-.02em;margin-bottom:12px;color:var(--color-text)}.section-header p{font-size:1.125rem;color:var(--color-text-secondary);line-height:1.7}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:var(--radius-sm);font-family:var(--font-family);font-size:.9375rem;font-weight:600;text-decoration:none;border:none;cursor:pointer;transition:all .2s ease}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-outline{background:transparent;color:var(--color-text);border:1.5px solid var(--color-border)}.btn-outline:hover{border-color:var(--color-primary);color:var(--color-primary)}.btn-lg{padding:14px 28px;font-size:1rem;border-radius:var(--radius-md)}.btn-icon{width:18px;height:18px;flex-shrink:0}.toast{position:fixed;bottom:32px;left:50%;transform:translate(-50%) translateY(100px);background:var(--color-text);color:#fff;padding:14px 28px;border-radius:var(--radius-md);font-size:.9375rem;font-weight:500;box-shadow:var(--shadow-xl);z-index:1000;opacity:0;transition:all .3s ease;pointer-events:none}.toast.show{opacity:1;transform:translate(-50%) translateY(0)}@media(max-width:768px){.section-header h2{font-size:1.75rem}.section-header p{font-size:1rem}}