:root{--primary-color:#3b82f6;--primary-dark:#2563eb;--primary-light:#60a5fa;--primary-lighter:#dbeafe;--primary-lightest:#eff6ff;--bg-dark:#1e293b;--bg-darker:#0f172a;--gray-50:#f9fafb;--gray-100:#f3f4f6;--gray-200:#e5e7eb;--gray-300:#d1d5db;--gray-400:#9ca3af;--gray-500:#6b7280;--gray-600:#4b5563;--gray-700:#374151;--gray-800:#1f2937;--gray-900:#111827;--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--shadow-sm:0 1px 2px 0 rgba(0,0,0,.05);--shadow:0 1px 3px 0 rgba(0,0,0,.1),0 1px 2px 0 rgba(0,0,0,.06);--shadow-md:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -1px rgba(0,0,0,.06);--shadow-lg:0 10px 15px -3px rgba(0,0,0,.1),0 4px 6px -2px rgba(0,0,0,.05);--shadow-xl:0 20px 25px -5px rgba(0,0,0,.1),0 10px 10px -5px rgba(0,0,0,.04)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,Microsoft YaHei,微软雅黑,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--gray-50);color:var(--gray-900);line-height:1.6}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--gray-100)}::-webkit-scrollbar-thumb{background:var(--gray-300);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--gray-400)}::selection{background-color:var(--primary-lighter);color:var(--primary-dark)}.btn{padding:10px 20px;border-radius:8px;font-weight:600;cursor:pointer;transition:all .3s ease;border:none;display:inline-flex;align-items:center;gap:8px;text-decoration:none}.btn-primary{background:linear-gradient(135deg,var(--primary-color) 0,var(--primary-dark) 100%);color:#fff;box-shadow:var(--shadow-md)}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.btn-secondary{background:#fff;color:var(--primary-color);border:2px solid var(--primary-color)}.btn-secondary:hover{background:var(--primary-lightest)}.card{background:#fff;border-radius:12px;box-shadow:var(--shadow);transition:all .3s ease}.card:hover{box-shadow:var(--shadow-lg)}.badge{display:inline-flex;align-items:center;padding:4px 12px;border-radius:20px;font-size:12px;font-weight:600}.badge-success{background:var(--success);color:#fff}.badge-warning{background:var(--warning);color:#fff}.badge-danger{background:var(--danger);color:#fff}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.fade-in{animation:fadeIn .5s ease-out}@media (max-width:768px){.btn,body{font-size:14px}.btn{padding:8px 16px}.product-layout{grid-template-columns:1fr!important}}@media (max-width:1024px) and (min-width:769px){.product-layout{grid-template-columns:minmax(0,1fr) 350px!important}}