/* common.css */
*{margin:0;padding:0;box-sizing:border-box;font-family:Arial, sans-serif;}
a{text-decoration:none;color:#222;}
ul{list-style:none;}
.container{max-width:1200px;margin:0 auto;padding:0 15px;}
:root{--primary:#222;--accent:#c89666;--light:#f8f8f8;--gray:#666;}

/* header */
header{background:#fff;box-shadow:0 1px 4px #0000001a;position:sticky;top:0;z-index:99;}
.header-top{background:#222;color:#fff;padding:8px 0;font-size:13px;}
.header-top .container{display:flex;justify-content:space-between;align-items:center;}
.header-main{padding:16px 0;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.logo-area h1{font-size:22px;font-weight:700;color:#222;}
.search-box{flex:1;max-width:500px;position:relative;}
.search-box input{width:100%;padding:10px 45px 10px 14px;border:1px solid #ddd;border-radius:4px;}
.search-box button{position:absolute;right:8px;top:50%;transform:translateY(-50%);background:none;border:none;font-size:16px;color:#333;cursor:pointer;}
.nav-wrap{display:flex;gap:24px;align-items:center;}
.nav-wrap a{font-weight:500;}
.icon-group{display:flex;gap:18px;font-size:20px;}
.icon-group i{cursor:pointer;}

/* 侧边弹窗 购物车 & 收藏 */
.side-panel{position:fixed;top:0;right:-400px;width:380px;height:100vh;background:#fff;z-index:999;box-shadow:-3px 0 12px #00000022;transition:right 0.3s ease;overflow-y:auto;}
.side-panel.open{right:0;}
.panel-header{padding:16px 20px;border-bottom:1px solid #eee;display:flex;justify-content:space-between;align-items:center;}
.panel-close{font-size:22px;cursor:pointer;}
.panel-body{padding:20px;}
.panel-empty{text-align:center;padding:40px 0;color:#777;}
.cart-item,.wish-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid #eee;}
.cart-item img,.wish-item img{width:70px;height:70px;object-fit:cover;}
.item-info{flex:1;}
.item-name{font-weight:500;font-size:14px;}
.item-price{color:#c89666;font-weight:600;margin:4px 0;}
.item-qty{display:flex;align-items:center;gap:8px;margin-top:6px;}
.item-qty button{width:24px;height:24px;border:1px solid #ddd;background:#fff;cursor:pointer;}
.panel-footer{padding:16px 20px;border-top:1px solid #eee;}
.panel-total{display:flex;justify-content:space-between;font-weight:600;margin-bottom:12px;}
.panel-btn{width:100%;padding:12px;background:#222;color:#fff;border:none;border-radius:4px;cursor:pointer;font-weight:500;}

/* 遮罩层 */
.overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#00000044;z-index:998;display:none;}
.overlay.show{display:block;}

/* 首页轮播 */
.banner-slider{position:relative;overflow:hidden;height:480px;background:#f3f3f3;}
.slide-item{position:absolute;top:0;left:0;width:100%;height:100%;opacity:0;transition:opacity 0.5s;}
.slide-item.active{opacity:1;}
.slide-item img{width:100%;height:100%;object-fit:cover;}
.slide-caption{position:absolute;bottom:60px;left:60px;color:#fff;}
.slide-caption h2{font-size:36px;margin-bottom:12px;}
.slide-caption p{font-size:16px;margin-bottom:16px;}
.slide-btn{padding:12px 26px;background:#c89666;color:#fff;border:none;border-radius:3px;cursor:pointer;}
.slider-nav{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);display:flex;gap:10px;}
.slider-dot{width:12px;height:12px;border-radius:50%;background:#ffffff77;cursor:pointer;}
.slider-dot.active{background:#fff;}

/* 产品卡片通用 */
.product-card{border:1px solid #eee;border-radius:6px;overflow:hidden;transition:0.2s;}
.product-card:hover{box-shadow:0 4px 12px #00000015;}
.product-card-img{height:240px;overflow:hidden;position:relative;}
.product-card-img img{width:100%;height:100%;object-fit:cover;}
.card-wish{position:absolute;top:10px;right:10px;background:#fff;padding:6px;border-radius:50%;cursor:pointer;}
.product-card-info{padding:14px;}
.card-name{font-weight:500;margin-bottom:6px;}
.card-price{color:#c89666;font-weight:600;margin-bottom:8px;}
.card-actions{display:flex;gap:8px;}
.card-btn{flex:1;padding:8px;border:1px solid #222;background:#fff;color:#222;border-radius:3px;cursor:pointer;font-size:13px;}
.card-btn.primary{background:#222;color:#fff;}

/* 产品列表页 */
.list-wrap{display:grid;grid-template-columns:240px 1fr;gap:24px;margin-top:30px;}
.filter-sidebar{border:1px solid #eee;padding:20px;}
.filter-title{font-size:16px;font-weight:600;margin-bottom:14px;}
.filter-group{margin-bottom:20px;}
.filter-group label{display:block;margin:6px 0;cursor:pointer;}
.view-switch{display:flex;gap:10px;margin-bottom:20px;}
.view-switch button{padding:8px 12px;border:1px solid #ddd;background:#fff;cursor:pointer;}
.view-switch button.active{background:#222;color:#fff;border-color:#222;}
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px;}
.product-list-row{display:flex;border:1px solid #eee;margin-bottom:12px;gap:16px;padding:12px;}
.product-list-row img{width:140px;height:140px;object-fit:cover;}

/* 分页 */
.pagination{display:flex;justify-content:center;gap:8px;margin:40px 0;}
.pagination button{padding:8px 14px;border:1px solid #ddd;background:#fff;cursor:pointer;}
.pagination button.active{background:#222;color:#fff;border-color:#222;}

/* 历史浏览 */
.history-section{margin:40px 0;}
.history-title{font-size:20px;margin-bottom:16px;}
.history-list{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}

/* 评论模块 */
.review-section{padding:50px 0;background:#f8f8f8;margin:40px 0;}
.review-title{text-align:center;font-size:24px;margin-bottom:30px;}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.review-card{background:#fff;padding:20px;border-radius:6px;}
.review-star{color:#c89666;margin-bottom:10px;}
.review-text{color:#555;font-size:14px;margin-bottom:10px;}
.review-author{font-weight:500;}

/* 详情页 */
.detail-wrap{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin:40px 0;}
.detail-img{width:100%;height:480px;object-fit:cover;border-radius:6px;}
.detail-info h2{font-size:28px;margin-bottom:12px;}
.detail-price{font-size:24px;color:#c89666;font-weight:700;margin-bottom:20px;}
.detail-desc{color:#555;line-height:1.6;margin-bottom:24px;}
.detail-actions{display:flex;gap:14px;margin-bottom:24px;}
.detail-btn{padding:14px 28px;border:none;border-radius:4px;cursor:pointer;font-weight:500;}
.detail-btn.cart{background:#222;color:#fff;}
.detail-btn.wish{border:1px solid #222;background:#fff;color:#222;}

/* 通用页面（about/contact/policy） */
.page-container{padding:40px 0;}
.page-title{font-size:28px;margin-bottom:24px;}
.page-content{line-height:1.7;font-size:15px;color:#333;}
.page-content p{margin-bottom:16px;}
.contact-form{max-width:600px;margin-top:24px;}
.form-item{margin-bottom:16px;}
.form-item label{display:block;margin-bottom:6px;}
.form-item input,.form-item textarea{width:100%;padding:10px;border:1px solid #ddd;border-radius:4px;}
.form-item textarea{min-height:140px;}
.form-submit{padding:12px 24px;background:#222;color:#fff;border:none;border-radius:4px;cursor:pointer;}

/* footer */
footer{background:#222;color:#fff;padding:50px 0;margin-top:60px;}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;}
.footer-col h4{font-size:17px;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:#ccc;}
.footer-payment{margin-top:20px;}
.footer-payment img{max-width:280px;}
.footer-bottom{border-top:1px solid #444;margin-top:30px;padding-top:20px;text-align:center;color:#aaa;font-size:13px;}

/* 响应式简单适配 */
@media(max-width:992px){
  .list-wrap{grid-template-columns:1fr;}
  .detail-wrap{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
  .review-grid{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:768px){
  .header-main{flex-wrap:wrap;}
  .search-box{order:3;width:100%;max-width:none;margin-top:12px;}
  .review-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .side-panel{width:100%;right:-100%;}
}