:root{--color-bg:#f8f9fa;--color-surface:#fff;--color-text:#1a1a1a;--color-text-secondary:#6b7280;--color-border:#e5e7eb;--color-primary:#2563eb;--color-primary-hover:#1d4ed8;--color-amber-bg:#fffbeb;--color-amber-border:#f59e0b;--color-amber-text:#92400e;--color-badge:#e0e7ff;--color-badge-text:#3730a3;--radius:12px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--color-bg);color:var(--color-text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5}.app{max-width:960px;margin:0 auto;padding:48px 24px}header{text-align:center;margin-bottom:40px}header h1{margin-bottom:4px;font-size:28px;font-weight:700}header p{color:var(--color-text-secondary);font-size:16px}.card-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px;margin-bottom:40px;display:grid}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);flex-direction:column;gap:12px;padding:24px;display:flex}.card-header{align-items:center;gap:12px;display:flex}.card-icon{background:var(--color-bg);border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:48px;height:48px;font-size:24px;display:flex}.card-icon img{object-fit:cover;border-radius:10px;width:100%;height:100%}.card-title{font-size:18px;font-weight:600}.card-description{color:var(--color-text-secondary);font-size:14px}.card-meta{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.badge{background:var(--color-badge);color:var(--color-badge-text);border-radius:9999px;padding:2px 8px;font-size:12px;font-weight:500}.version{color:var(--color-text-secondary);font-size:13px}.release-notes{color:var(--color-text-secondary);font-size:13px;font-style:italic}.download-btn{background:var(--color-primary);color:#fff;cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;margin-top:auto;padding:10px 20px;font-size:14px;font-weight:600;text-decoration:none;transition:background .15s;display:inline-flex}.download-btn:hover{background:var(--color-primary-hover)}.download-btn:disabled{background:var(--color-border);color:var(--color-text-secondary);cursor:not-allowed}.callout{background:var(--color-amber-bg);border:1px solid var(--color-amber-border);border-radius:var(--radius);margin-bottom:40px;padding:16px 20px}.callout-title{color:var(--color-amber-text);margin-bottom:4px;font-weight:600}.callout-body{color:var(--color-amber-text);font-size:14px}footer{text-align:center;color:var(--color-text-secondary);border-top:1px solid var(--color-border);padding-top:24px;font-size:13px}.loading,.error,.empty{text-align:center;color:var(--color-text-secondary);padding:64px 24px;font-size:16px}.error{color:#dc2626}