:root{--color-primary:#1e98c8;--color-secondary:#32bd7f;--color-accent:#2fb69e;--color-text:#2c3e50;--color-bg:#ffffff;--color-border:#e5e7eb;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono:"SF Mono", Monaco, Consolas, monospace;--spacing-unit:8px;--border-radius:8px;--transition:0.3s ease;--container-max:1200px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-sans);color:var(--color-text);line-height:1.6;background:var(--color-bg)}.container{max-width:var(--container-max);margin:0 auto;padding:0 calc(var(--spacing-unit) * 3)}.site-header{position:sticky;top:0;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--color-border);z-index:100;padding:calc(var(--spacing-unit) * 2)0}.header-inner{display:flex;align-items:center;justify-content:space-between}.logo-text{font-size:24px;font-weight:700;color:var(--color-primary);text-decoration:none}.main-nav{display:flex;gap:calc(var(--spacing-unit) * 4)}.nav-link{color:var(--color-text);text-decoration:none;font-weight:500;transition:color var(--transition)}.nav-link:hover{color:var(--color-primary)}.hero{padding:calc(var(--spacing-unit) * 12)0;background:linear-gradient(135deg,#1e98c815 0%,#32bd7f15 100%);text-align:center}.hero h1{font-size:48px;margin-bottom:calc(var(--spacing-unit) * 3);color:var(--color-primary)}.lead{font-size:20px;color:#6b7280}.products{padding:calc(var(--spacing-unit) * 10)0}.product-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:calc(var(--spacing-unit) * 3);margin-top:calc(var(--spacing-unit) * 6)}.product-card{padding:calc(var(--spacing-unit) * 4);border:1px solid var(--color-border);border-radius:var(--border-radius);transition:transform var(--transition),box-shadow var(--transition)}.product-card:hover{transform:translateY(-4px);box-shadow:0 10px 30px rgba(0,0,0,.1)}.layout-7-5{display:grid;grid-template-columns:58.33% 41.67%;gap:calc(var(--spacing-unit) * 4)}.sidebar.sticky{position:sticky;top:calc(var(--spacing-unit) * 10);height:fit-content}.product-summary{padding:calc(var(--spacing-unit) * 3);background:#f9fafb;border-radius:var(--border-radius)}.btn{display:inline-block;padding:calc(var(--spacing-unit) * 2)calc(var(--spacing-unit) * 4);border-radius:var(--border-radius);font-weight:600;text-decoration:none;transition:all var(--transition);border:none;cursor:pointer}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-secondary);transform:translateY(-2px)}.site-footer{background:#1f2937;color:#fff;padding:calc(var(--spacing-unit) * 6)0;text-align:center;margin-top:calc(var(--spacing-unit) * 10)}@media(max-width:1024px){.layout-7-5{grid-template-columns:1fr}.sidebar.sticky{position:static}}@media(max-width:768px){.hero h1{font-size:32px}.product-grid{grid-template-columns:1fr}.main-nav{display:none}}