:root{--color-primary:#3b82f6;--color-primary-hover:#2563eb;--color-primary-light:#eff6ff;--color-success:#10b981;--color-warning:#f59e0b;--color-danger:#ef4444;--color-info:#6366f1;--color-bg:#f1f5f9;--color-surface:#fff;--color-text:#1e293b;--color-text-secondary:#64748b;--color-text-muted:#94a3b8;--color-border:#e2e8f0;--color-price:#f59e0b;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-xl:20px;--shadow-sm:0 1px 2px rgba(0,0,0,.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,.07), 0 2px 4px -2px rgba(0,0,0,.05);--shadow-lg:0 10px 15px -3px rgba(0,0,0,.08), 0 4px 6px -4px rgba(0,0,0,.04);--shadow-xl:0 20px 25px -5px rgba(0,0,0,.1), 0 8px 10px -6px rgba(0,0,0,.05);--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:32px;--space-2xl:48px;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;--transition-fast:.15s ease;--transition-normal:.25s ease}*{box-sizing:border-box}body{font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0;padding:0;font-size:14px}h3{margin:0 0 var(--space-md);color:var(--color-text);font-size:20px;font-weight:700}.sg-card{background:var(--color-surface);border-radius:var(--radius-lg);padding:var(--space-md);box-shadow:var(--shadow-sm);transition:box-shadow var(--transition-normal), transform var(--transition-normal)}.sg-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.sg-price{color:var(--color-price);font-size:18px;font-weight:700}.sg-tag{transition:all var(--transition-fast);border-radius:20px;padding:4px 12px;font-size:12px;font-weight:500;display:inline-block}.sg-tag-default{color:var(--color-text-secondary);background:#f1f5f9}.sg-tag-active{background:var(--color-primary-light);color:var(--color-primary)}.sg-fade-enter-active,.sg-fade-leave-active{transition:opacity var(--transition-normal)}.sg-fade-enter-from,.sg-fade-leave-to{opacity:0}