* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif; color: #333; background: #f8f9fa; line-height: 1.6; }
a { text-decoration: none; color: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.header { background: #fff; box-shadow: 0 2px 10px rgba(0,0,0,0.1); padding: 20px 0; }
.header .container { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 24px; font-weight: bold; color: #2563eb; }
.nav { display: flex; gap: 20px; }
.nav a:hover, .nav a.active { color: #2563eb; font-weight: bold;}
.btn { display: inline-block; padding: 12px 24px; background: #2563eb; color: #fff; border-radius: 4px; cursor: pointer; border: none; font-size: 16px; transition: 0.3s; text-align: center;}
.btn:hover { background: #1d4ed8; }
.btn-outline { background: #fff; color: #2563eb; border: 1px solid #2563eb; }
.btn-outline:hover { background: #f0f4ff; }

/* Home */
.hero { display: flex; align-items: center; padding: 60px 0; background: #fff; margin-top: 20px; border-radius: 8px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); }
.hero-content { flex: 1; padding: 40px; }
.hero-content h1 { font-size: 40px; margin-bottom: 20px; }
.hero-content p { font-size: 18px; color: #666; margin-bottom: 30px; }
.hero-image { flex: 1; text-align: center; }
.hero-image img { max-width: 100%; height: auto; border-radius: 8px; }

.features { padding: 60px 0; }
.features h2 { text-align: center; margin-bottom: 40px; font-size: 32px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.feature-card { background: #fff; padding: 30px; border-radius: 8px; text-align: center; box-shadow: 0 2px 4px rgba(0,0,0,0.05); }
.feature-card h3 { margin-bottom: 15px; font-size: 20px; color: #2563eb; }

/* Detail */
.product-detail { display: flex; background: #fff; padding: 40px; margin-top: 40px; border-radius: 8px; gap: 40px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); }
.product-gallery { flex: 1; text-align: center; background: #f8f9fa; border-radius: 8px; padding: 20px; }
.product-gallery img { max-width: 100%; border-radius: 8px; mix-blend-mode: multiply; }
.product-info { flex: 1; }
.product-info h1 { font-size: 32px; margin-bottom: 10px; }
.price-block { margin: 20px 0; display: flex; align-items: baseline; }
.price { font-size: 36px; color: #e11d48; font-weight: bold; }
.original-price { text-decoration: line-through; color: #999; margin-left: 10px; font-size: 18px; }
.options { margin-bottom: 30px; }
.options h3 { margin-bottom: 10px; font-size: 16px; color: #555; }
.size-list { display: flex; gap: 10px; }
.size-item { border: 1px solid #ddd; padding: 8px 16px; border-radius: 4px; cursor: pointer; transition: 0.2s; }
.size-item:hover, .size-item.active { border-color: #2563eb; color: #2563eb; background: #f0f4ff; font-weight: bold; }
.actions { display: flex; gap: 20px; }
.footer { text-align: center; padding: 40px 0; color: #666; margin-top: 40px; }
.beian-info { margin-top: 15px; font-size: 14px; display: flex; justify-content: center; align-items: center; gap: 10px; }
.beian-info a { color: #999; display: flex; align-items: center; gap: 5px; }
.beian-info a:hover { color: #2563eb; }
.separator { color: #ccc; }
.police-icon { width: 16px; height: 16px; }