:root{--accent: #0055ff;--accent-dark: #0044cc;--accent-light: #e8f0ff;--accent-rgb: 0, 85, 255;--c-bg: #f8f9fa;--c-bg-white: #ffffff;--c-text: #1a1a1a;--c-text-2: #555;--c-text-3: #999;--c-border: #e5e5e5;--radius: 6px;--max-width: 1440px;--font: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:auto}body{font-family:var(--font);color:var(--c-text);background:var(--c-bg);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-dark)}img{max-width:100%;height:auto}h1,h2,h3,h4{line-height:1.3}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px}.section{padding:64px 0}.section-header{margin-bottom:32px}.section-header-row{display:flex;align-items:flex-end;justify-content:space-between;gap:16px}.section-title{font-size:1.5rem;font-weight:700;color:var(--c-text);letter-spacing:-.02em;margin-bottom:4px}.section-subtitle{font-size:.9rem;color:var(--c-text-2)}.btn{display:inline-flex;align-items:center;padding:8px 20px;border-radius:var(--radius);font-size:.85rem;font-weight:500;border:1px solid transparent;cursor:pointer;transition:all .15s;font-family:var(--font)}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-primary:hover{background:var(--accent-dark)}.btn-ghost{background:#fff;color:var(--c-text-2);border-color:var(--c-border)}.btn-ghost:hover{border-color:#bbb}.btn-dark{background:#1a1a1a;color:#fff}.btn-dark:hover{background:#333}.btn-sm{padding:5px 12px;font-size:.78rem}.btn-link{font-size:.85rem;color:var(--accent);font-weight:500}.btn-link:hover{color:var(--accent-dark)}.badge{display:inline-block;padding:2px 8px;border-radius:3px;font-size:.72rem;font-weight:500}.badge-blue{background:var(--accent-light);color:var(--accent)}.grid{display:grid;gap:20px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.card{display:block;background:var(--c-bg-white);border:1px solid var(--c-border);border-radius:var(--radius);overflow:hidden;transition:border-color .15s}.card:hover{border-color:var(--accent)}.card-img{width:100%;height:180px;object-fit:cover;display:block;border-bottom:1px solid var(--c-border)}.placeholder-img{height:160px;background:#f0f0f0;display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--c-border)}.placeholder-icon{width:40px;height:40px;background:#ddd;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.85rem;font-weight:600;color:#999}.card-body{padding:16px}.card-title{font-size:.95rem;font-weight:600;color:var(--c-text);margin-bottom:4px;line-height:1.4}.card-text{font-size:.82rem;color:var(--c-text-2);line-height:1.5}.card-meta{font-size:.75rem;color:var(--c-text-3);margin-bottom:4px}.card-price{font-size:.95rem;font-weight:600;color:var(--accent);margin-top:8px}.pagination{display:flex;gap:4px;margin-top:24px;justify-content:center}.pagination a,.pagination span{padding:6px 12px;border-radius:4px;font-size:.8rem;border:1px solid var(--c-border);color:var(--c-text-2)}.pagination a:hover{border-color:var(--accent);color:var(--accent)}.pagination .active{background:var(--accent);color:#fff;border-color:var(--accent)}.pagination .disabled{color:#ddd}.spec-mini{display:flex;flex-wrap:wrap;gap:4px 12px;margin-top:8px;font-size:.75rem}.spec-mini div{display:flex;gap:3px}.spec-mini dt{color:var(--c-text-3)}.spec-mini dd{color:var(--c-text)}.spec-table{width:100%;border-collapse:collapse;border:1px solid var(--c-border);border-radius:var(--radius);overflow:hidden}.spec-table th,.spec-table td{padding:10px 14px;border-bottom:1px solid var(--c-border);font-size:.85rem;text-align:left}.spec-table th{background:#fafafa;font-weight:500;color:var(--c-text-2);width:120px;white-space:nowrap}.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:none}@media(max-width:768px){.section{padding:40px 0}.grid-4,.grid-3{grid-template-columns:repeat(2,1fr)}.grid-2{grid-template-columns:1fr}}@media(max-width:480px){.grid-4,.grid-3{grid-template-columns:1fr}}