* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}
:root {
    --primary:#222;
    --accent:#c89b48;
    --light:#f8f8f8;
    --border:#e2e2e2;
    --danger:#dd4444;
}
body {
    background:#fff;
    color:#333;
    line-height:1.6;
}
a {
    text-decoration:none;
    color:inherit;
}
ul {
    list-style:none;
}
button {
    cursor:pointer;
    border:none;
    outline:none;
}
.container {
    max-width:1280px;
    margin:0 auto;
    padding:0 16px;
}

/* Header */
.site-header {
    border-bottom:1px solid var(--border);
    position:sticky;
    top:0;
    background:#fff;
    z-index:99;
}
.header-top {
    background:var(--primary);
    color:#fff;
    padding:8px 0;
    font-size:13px;
}
.header-main {
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:14px 0;
    gap:20px;
}
.search-wrap {
    flex:1;
    max-width:520px;
    display:flex;
}
.search-wrap input {
    width:100%;
    border:1px solid var(--border);
    padding:10px 14px;
    border-radius:4px 0 0 4px;
    font-size:14px;
}
.search-wrap button {
    background:var(--accent);
    color:#fff;
    padding:0 18px;
    border-radius:0 4px 4px 0;
}
.header-icons {
    display:flex;
    gap:22px;
    font-size:22px;
}
.icon-btn {
    position:relative;
}
.badge {
    position:absolute;
    top:-6px;
    right:-8px;
    background:var(--danger);
    color:#fff;
    font-size:11px;
    width:18px;
    height:18px;
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
}

/* Nav */
.main-nav {
    border-top:1px solid var(--border);
}
.main-nav ul {
    display:flex;
    gap:28px;
}
.main-nav a {
    display:block;
    padding:12px 0;
    font-weight:500;
}

/* Carousel 轮播 */
.carousel {
    position:relative;
    height:440px;
    overflow:hidden;
}
.carousel-item {
    position:absolute;
    width:100%;
    height:100%;
    opacity:0;
    transition:opacity 0.6s;
}
.carousel-item.active {
    opacity:1;
}
.carousel-item img {
    width:100%;
    height:100%;
    object-fit:cover;
}
.carousel-arrow {
    position:absolute;
    top:50%;
    transform:translateY(-50%);
    background:rgba(0,0,0,0.45);
    color:#fff;
    width:40px;
    height:40px;
    border-radius:50%;
    font-size:20px;
    z-index:2;
}
.carousel-prev { left:16px; }
.carousel-next { right:16px; }
.carousel-dots {
    position:absolute;
    bottom:14px;
    left:50%;
    transform:translateX(-50%);
    display:flex;
    gap:8px;
    z-index:2;
}
.dot {
    width:10px;
    height:10px;
    border-radius:50%;
    background:rgba(255,255,255,0.45);
}
.dot.active {
    background:#fff;
}

/* Product Card */
.product-grid {
    display:grid;
    grid-template-columns:repeat(auto-fill, minmax(230px,1fr));
    gap:24px;
    margin:30px 0;
}
.product-card {
    border:1px solid var(--border);
    border-radius:6px;
    overflow:hidden;
    transition:0.25s;
}
.product-card:hover {
    box-shadow:0 4px 14px #00000018;
}
.card-img-wrap {
    position:relative;
    height:220px;
}
.card-img-wrap img {
    width:100%;
    height:100%;
    object-fit:cover;
}
.card-fav {
    position:absolute;
    top:10px;
    right:10px;
    width:30px;
    height:30px;
    background:#ffffffcc;
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:18px;
    cursor:pointer;
}
.card-body {
    padding:14px;
}
.card-title {
    font-size:14px;
    margin-bottom:8px;
}
.card-price {
    font-size:17px;
    color:#b02020;
    font-weight:bold;
    margin-bottom:10px;
}
.card-addcart {
    width:100%;
    background:var(--accent);
    color:#fff;
    padding:8px;
    border-radius:4px;
}

/* Section */
.section-title {
    font-size:24px;
    margin:40px 0 12px;
    padding-bottom:8px;
    border-bottom:2px solid var(--accent);
    display:inline-block;
}

/* Side Drawer 侧弹窗：购物车、收藏 */
.drawer-overlay {
    position:fixed;
    inset:0;
    background:#00000060;
    z-index:100;
    display:none;
}
.drawer-overlay.show {
    display:block;
}
.drawer {
    position:fixed;
    top:0;
    right:0;
    width:420px;
    max-width:100%;
    height:100vh;
    background:#fff;
    z-index:101;
    transform:translateX(100%);
    transition:transform 0.3s ease;
    display:flex;
    flex-direction:column;
}
.drawer.open {
    transform:translateX(0);
}
.drawer-header {
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:16px 20px;
    border-bottom:1px solid var(--border);
}
.drawer-close {
    font-size:22px;
    background:none;
}
.drawer-body {
    flex:1;
    overflow-y:auto;
    padding:16px 20px;
}
.drawer-item {
    display:flex;
    gap:12px;
    padding:12px 0;
    border-bottom:1px solid var(--border);
}
.drawer-item img {
    width:70px;
    height:70px;
    object-fit:cover;
    border-radius:4px;
}
.drawer-footer {
    padding:16px 20px;
    border-top:1px solid var(--border);
}
.drawer-total {
    font-size:18px;
    margin-bottom:12px;
}
.drawer-btn {
    width:100%;
    background:var(--accent);
    color:#fff;
    padding:11px;
    border-radius:4px;
}

/* Filter 产品列表筛选 */
.filter-bar {
    display:flex;
    gap:16px;
    align-items:center;
    padding:16px;
    background:var(--light);
    border-radius:6px;
    margin:24px 0;
    flex-wrap:wrap;
}
.filter-bar select, .filter-bar input {
    padding:8px 10px;
    border:1px solid var(--border);
    border-radius:4px;
}

/* Pagination 分页 */
.pagination {
    display:flex;
    gap:8px;
    justify-content:center;
    margin:40px 0;
}
.pagination button {
    width:36px;
    height:36px;
    border:1px solid var(--border);
    background:#fff;
    border-radius:4px;
}
.pagination button.active {
    background:var(--primary);
    color:#fff;
    border-color:var(--primary);
}

/* Product Detail */
.detail-wrap {
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:40px;
    margin:40px 0;
}
.detail-img {
    width:100%;
    border-radius:6px;
}
.detail-price {
    font-size:26px;
    color:#b02020;
    margin:16px 0;
}
.detail-desc {
    margin:20px 0;
    color:#555;
}
.qty-wrap {
    display:flex;
    align-items:center;
    gap:10px;
    margin:20px 0;
}
.qty-wrap button {
    width:34px;
    height:34px;
    border:1px solid var(--border);
    background:#fff;
}
.qty-wrap input {
    width:60px;
    text-align:center;
    border:1px solid var(--border);
    padding:6px;
}
.detail-actions {
    display:flex;
    gap:14px;
}
.btn-cart {
    flex:1;
    background:var(--accent);
    color:#fff;
    padding:12px;
    border-radius:4px;
    font-size:16px;
}
.btn-fav {
    padding:0 18px;
    border:1px solid var(--border);
    background:#fff;
    border-radius:4px;
    font-size:20px;
}

/* History View 最近浏览 */
.history-view {
    margin:40px 0;
}

/* Page static page about / contact / policy */
.page-content {
    margin:40px auto 60px auto; /* auto 实现水平居中 */
    max-width:900px;
    padding:0 16px; /* 小屏幕左右留边，防止贴边 */
}
.page-content h1 {
    margin-bottom:24px;
    font-size:28px;
}
.page-content p {
    margin-bottom:14px;
}
.contact-info li {
    margin:10px 0;
}

/* Footer */
.site-footer {
    background:var(--primary);
    color:#fff;
    padding:44px 0 24px;
    margin-top:60px;
}
.footer-grid {
    display:grid;
    grid-template-columns:repeat(auto-fit, minmax(220px,1fr));
    gap:30px;
    margin-bottom:34px;
}
.footer-col h4 {
    margin-bottom:16px;
    font-size:16px;
}
.footer-col li {
    margin:8px 0;
    font-size:14px;
    opacity:0.85;
}
.payment-img {
    margin-top:14px;
}
.payment-img img {
    height:34px;
}
.copyright {
    text-align:center;
    padding-top:20px;
    border-top:#444 solid 1px;
    font-size:13px;
    opacity:0.75;
}

/* Toast */
.toast {
    position:fixed;
    bottom:24px;
    left:50%;
    transform:translateX(-50%);
    background:#222;
    color:#fff;
    padding:10px 22px;
    border-radius:4px;
    z-index:200;
    display:none;
}
.toast.show {
    display:block;
}

@media(max-width:768px){
    .header-main { flex-wrap:wrap; }
    .detail-wrap { grid-template-columns:1fr; }
    .drawer { width:100%; }
    .carousel { height:280px; }
}