:root{--color-primary:#5b5fc7;--color-primary-hover:#4a4eb5;--color-primary-light:#f0f1fb;--color-text-primary:#1a1a2e;--color-text-secondary:#4a4a6a;--color-text-muted:#8b8ba7;--color-border:#e5e7eb;--color-border-light:#f0f0f5;--color-bg:#fff;--color-bg-subtle:#fafbfc;--color-bg-footer:#f8f9fc;--shadow-sm:0 1px 2px rgba(0,0,0,.04);--shadow-md:0 4px 12px rgba(0,0,0,.06);--shadow-lg:0 8px 24px rgba(0,0,0,.08);--shadow-hover:0 12px 32px rgba(91,95,199,.12);--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--transition:0.2s cubic-bezier(0.4,0,0.2,1);--container-max:1200px}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,system-ui,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:var(--color-text-primary);line-height:1.6;background:var(--color-bg)}.site-header{padding:1.25rem 2rem;border-bottom:1px solid var(--color-border-light);background:hsla(0,0%,100%,.85);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);position:-webkit-sticky;position:sticky;top:0;z-index:100}.site-nav{display:flex;justify-content:space-between;align-items:center;max-width:var(--container-max);margin:0 auto}.site-brand{font-size:1.375rem;font-weight:700;letter-spacing:-.01em;background:linear-gradient(135deg,var(--color-primary) 0,#7b7fd9 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:var(--color-primary)}.main-container{max-width:var(--container-max);margin:0 auto;padding:3rem 2rem;min-height:calc(100vh - 200px)}.products-section{padding:2rem 0}.products-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));grid-gap:2rem;gap:2rem;max-width:900px;margin:0 auto}.product-card{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:2.5rem 2rem;text-align:center;transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);display:flex;flex-direction:column;align-items:center}.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:transparent}.product-icon{width:88px;height:88px;margin-bottom:1.5rem;display:flex;align-items:center;justify-content:center;background:var(--color-primary-light);border-radius:20px;transition:transform var(--transition);overflow:hidden}.product-card:hover .product-icon{transform:scale(1.05)}.product-icon img{width:100%;height:100%;object-fit:cover}.product-icon-emoji{font-size:3.5rem;line-height:1}.product-title{font-size:1.375rem;font-weight:600;margin:0 0 .625rem;color:var(--color-text-primary);letter-spacing:-.01em}.product-description{color:var(--color-text-secondary);font-size:.9375rem;line-height:1.6;margin:0 0 1.5rem;flex-grow:1}.product-button{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.75rem;background:var(--color-primary);color:#fff;text-decoration:none;border-radius:var(--radius-sm);font-weight:500;font-size:.9375rem;transition:background var(--transition),transform var(--transition),box-shadow var(--transition);min-width:140px}.product-button-icon{flex-shrink:0}.product-button:hover{background:var(--color-primary-hover);transform:translateY(-1px);box-shadow:0 4px 12px rgba(91,95,199,.25)}.product-button:active{transform:translateY(0)}.product-button:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.site-footer{padding:2.5rem 2rem;text-align:center;border-top:1px solid var(--color-border-light);color:var(--color-text-muted);background:var(--color-bg-footer);font-size:.875rem}.site-footer p{margin:.375rem 0}@media (max-width:640px){.site-header{padding:1rem 1.25rem}.main-container{padding:2rem 1.25rem}.products-grid{grid-template-columns:1fr;gap:1.5rem}.product-card{padding:2rem 1.5rem}}@media (prefers-reduced-motion:reduce){*,:after,:before{animation-duration:.01ms!important;transition-duration:.01ms!important}}