:root {
    --lu-bg: #f8fafc;
    --lu-card: #ffffff;
    --lu-border: #e2e8f0;
    --lu-accent: #6366f1;
    --lu-text-h: #0f172a;
    --lu-text-p: #475569;
    --lu-glow: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
    --lu-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
}
body { margin: 0; background: var(--lu-bg); color: var(--lu-text-p); font-family: 'Inter', system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
.lu-header { position: sticky; top: 0; background: rgba(255, 255, 255, 0.8); backdrop-filter: blur(12px); border-bottom: 1px solid var(--lu-border); z-index: 1000; height: 64px; display: flex; align-items: center; }
.lu-nav-inner { max-width: 1400px; margin: 0 auto; width: 100%; display: flex; align-items: center; justify-content: space-between; padding: 0 20px; }
.lu-logo img { height: 26px; }
.lu-menu { display: flex; gap: 30px; }
.lu-menu a { text-decoration: none; color: var(--lu-text-h); font-weight: 600; font-size: 14px; transition: 0.3s; }
.lu-menu a:hover { color: var(--lu-accent); }
.lu-container { max-width: 1400px; margin: 40px auto; padding: 0 20px; box-sizing: border-box; }
.lu-notice { background: #fff; padding: 15px 25px; border-radius: 12px; margin-bottom: 30px; box-shadow: var(--lu-shadow); display: flex; align-items: center; border: 1px solid var(--lu-border); font-size: 13px; }
.lu-notice i { color: var(--lu-accent); margin-right: 12px; }
.lu-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 15px; }
.lu-card { background: #fff; border-radius: 16px; padding: 15px; text-decoration: none; position: relative; border: 1px solid transparent; transition: all 0.3s ease; box-shadow: var(--lu-shadow); overflow: hidden; }
.lu-card::before { content: ""; position: absolute; inset: 0; padding: 1px; border-radius: 16px; background: var(--lu-glow); -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0); mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0); -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0; transition: 0.3s; }
.lu-card:hover { transform: translateY(-5px); }
.lu-card:hover::before { opacity: 1; }
.lu-img-box { width: 100%; aspect-ratio: 1; background: #f1f5f9; border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 12px; }
.lu-img-box img { width: 60%; height: 60%; object-fit: contain; }
.lu-name { font-size: 13px; font-weight: 700; color: var(--lu-text-h); height: 38px; line-height: 1.4; overflow: hidden; margin-bottom: 12px; text-align: center; }
.lu-price-row { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid #f8fafc; padding-top: 10px; }
.lu-price { color: #f43f5e; font-weight: 800; font-size: 16px; }
.lu-sell { font-size: 10px; color: #94a3b8; }
.lu-tag { position: absolute; top: 10px; left: 10px; background: rgba(99, 102, 241, 0.1); color: var(--lu-accent); font-size: 9px; padding: 2px 6px; border-radius: 6px; font-weight: bold; }
.lu-detail-main { display: grid; grid-template-columns: 1.2fr 1fr; gap: 30px; }
.lu-box { background: #fff; border-radius: 20px; padding: 35px; box-shadow: var(--lu-shadow); border: 1px solid var(--lu-border); }
.lu-input { width: 100%; height: 46px; border: 1px solid var(--lu-border); border-radius: 10px; padding: 0 15px; box-sizing: border-box; outline: none; transition: 0.3s; background: #fcfdfe; }
.lu-input:focus { border-color: var(--lu-accent); box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1); }
.lu-btn { width: 100%; height: 50px; background: var(--lu-glow); border: none; color: #fff; font-weight: 700; border-radius: 12px; cursor: pointer; transition: 0.3s; margin-top: 20px; }
.lu-btn:hover { opacity: 0.9; transform: scale(1.02); }
.lu-footer { background: #fff; border-top: 1px solid var(--lu-border); padding: 50px 0; margin-top: 80px; text-align: center; }
@media (max-width: 1400px) { .lu-grid { grid-template-columns: repeat(5, 1fr); } }
@media (max-width: 1000px) { .lu-grid { grid-template-columns: repeat(3, 1fr); } .lu-detail-main { grid-template-columns: 1fr; } }
@media (max-width: 600px) { .lu-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; } }