/* ===== smartshop 前台样式 ===== */
:root {
  --primary: #1668dc;
  --primary-dark: #0f52ba;
  --primary-light: #e8f1fe;
  --dark: #16202c;
  --text: #2b3445;
  --text-light: #6b7280;
  --border: #e5e7eb;
  --bg: #ffffff;
  --bg-soft: #f6f8fb;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(16, 40, 80, 0.08);
  --shadow-hover: 0 14px 34px rgba(16, 40, 80, 0.14);
  --header-h: 68px;
  --transition: all .25s ease;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4 { margin: 0 0 12px; line-height: 1.3; font-weight: 700; }
p { margin: 0 0 12px; }
.container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 20px; }

/* ===== 顶栏 ===== */
.topbar { background: var(--dark); color: #cfd8e3; font-size: 13px; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 38px; }
.topbar-left, .topbar-right { display: flex; align-items: center; gap: 14px; }
.topbar a:hover { color: #fff; }
.topbar-sep { opacity: .4; }
.topbar-note { opacity: .85; }
.sel-wrap { display: inline-flex; align-items: center; gap: 5px; }
.sel-wrap select {
  background: transparent; color: #cfd8e3; border: 1px solid rgba(255,255,255,.2);
  border-radius: 6px; padding: 3px 6px; font-size: 12px; cursor: pointer;
}
.sel-wrap select option { color: #222; }

/* ===== 头部 ===== */
.site-header {
  position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,.96);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; gap: 22px; height: var(--header-h); }
.logo { display: flex; align-items: center; gap: 9px; font-size: 20px; font-weight: 800; color: var(--primary); white-space: nowrap; }
.logo img { height: 38px; width: auto; object-fit: contain; }
.header-search { flex: 1; max-width: 460px; display: flex; border: 2px solid var(--border); border-radius: 30px; overflow: hidden; transition: var(--transition); }
.header-search:focus-within { border-color: var(--primary); }
.header-search input { flex: 1; border: none; padding: 9px 16px; font-size: 14px; outline: none; background: transparent; }
.header-search button { border: none; background: var(--primary); color: #fff; width: 46px; cursor: pointer; }
.main-nav { display: flex; align-items: center; gap: 18px; margin-left: auto; }
.main-nav a { font-weight: 500; font-size: 15px; position: relative; padding: 6px 0; }
.main-nav a:hover, .main-nav a.active { color: var(--primary); }
.main-nav a.active::after { content: ''; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; background: var(--primary); border-radius: 2px; }
.icon-link { display: inline-flex; align-items: center; gap: 6px; }
.badge {
  display: inline-flex; align-items: center; justify-content: center; min-width: 18px; height: 18px;
  padding: 0 5px; background: var(--primary); color: #fff; font-size: 11px; font-style: normal;
  border-radius: 9px; font-weight: 700;
}
.mobile-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; }
.mobile-toggle span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 22px; border-radius: 10px; border: 2px solid transparent; font-weight: 600;
  font-size: 15px; cursor: pointer; transition: var(--transition); font-family: inherit; text-align: center;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-outline { border-color: var(--primary); color: var(--primary); background: #fff; }
.btn-outline:hover { background: var(--primary-light); }
.btn-outline-light { border-color: rgba(255,255,255,.7); color: #fff; }
.btn-outline-light:hover { background: rgba(255,255,255,.15); }
.btn-ghost { background: var(--bg-soft); color: var(--text); }
.btn-ghost:hover { background: #e9eef6; }
.btn-lg { padding: 13px 28px; font-size: 16px; }
.btn-sm { padding: 7px 13px; font-size: 13px; }
.btn-block { width: 100%; }

/* ===== 首页横幅 ===== */
.hero { position: relative; }
.hero-slider { position: relative; overflow: hidden; }
.hero-slide {
  display: none; min-height: 460px; align-items: center; color: #fff;
  background: linear-gradient(135deg, #123a6b, #1668dc 55%, #21a5c4);
  background-size: cover; background-position: center; position: relative;
}
.hero-slide::before { content: ''; position: absolute; inset: 0; background: rgba(10, 30, 60, .45); }
.hero-slide.active { display: flex; }
.hero-content { position: relative; z-index: 2; padding: 70px 20px; max-width: 760px; }
.hero-content h1 { font-size: 46px; font-weight: 800; text-shadow: 0 2px 12px rgba(0,0,0,.25); }
.hero-content p { font-size: 18px; opacity: .95; margin-bottom: 26px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 3; width: 46px; height: 46px;
  border: none; border-radius: 50%; background: rgba(255,255,255,.25); color: #fff; cursor: pointer;
  backdrop-filter: blur(4px); font-size: 18px;
}
.hero-arrow:hover { background: rgba(255,255,255,.45); }
.hero-arrow.prev { left: 18px; } .hero-arrow.next { right: 18px; }
.hero-dots { position: absolute; bottom: 22px; left: 50%; transform: translateX(-50%); display: flex; gap: 8px; z-index: 3; }
.hero-dots span { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.45); cursor: pointer; }
.hero-dots span.active { background: #fff; width: 26px; border-radius: 6px; }

/* ===== 区块 ===== */
.section { padding: 60px 0; }
.section-gray { background: var(--bg-soft); }
.section-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 26px; }
.section-head.center { justify-content: center; text-align: center; }
.section-head h2 { font-size: 28px; }
.view-all { color: var(--primary); font-weight: 600; font-size: 14px; }
.page-title { font-size: 30px; margin-bottom: 26px; }
.page-hero { background: linear-gradient(135deg, #123a6b, #1668dc); color: #fff; padding: 46px 0; }
.page-hero h1 { font-size: 32px; }
.page-hero p { opacity: .9; margin: 0; }

/* ===== 分类 ===== */
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 18px; }
.cat-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 16px;
  text-align: center; transition: var(--transition);
}
.cat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--primary); }
.cat-card img { height: 62px; width: 62px; object-fit: contain; margin: 0 auto 12px; }
.cat-icon { font-size: 30px; color: var(--primary); margin-bottom: 10px; }
.cat-card span { font-weight: 600; font-size: 15px; }

/* ===== 产品卡片 ===== */
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 22px; }
.product-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
  display: flex; flex-direction: column; transition: var(--transition);
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: #d3e2f7; }
.pc-media { position: relative; padding-top: 78%; background: var(--bg-soft); overflow: hidden; }
.pc-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.product-card:hover .pc-media img { transform: scale(1.05); }
.pc-noimg {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  color: #b9c3d0; font-size: 34px;
}
.pc-tag { position: absolute; top: 10px; left: 10px; background: #e5343d; color: #fff; font-size: 12px; font-weight: 700; padding: 3px 8px; border-radius: 6px; }
.pc-body { padding: 14px 16px 16px; display: flex; flex-direction: column; flex: 1; }
.pc-title { font-size: 15px; font-weight: 600; line-height: 1.4; height: 42px; overflow: hidden; }
.pc-summary { color: var(--text-light); font-size: 13px; height: 38px; overflow: hidden; margin-bottom: 8px; }
.pc-price { display: flex; align-items: baseline; gap: 8px; margin-bottom: 8px; }
.price-now { color: #e5343d; font-size: 20px; font-weight: 800; }
.price-old { color: #9aa3af; font-size: 13px; text-decoration: line-through; }
.pc-meta { display: flex; justify-content: space-between; font-size: 12px; color: var(--text-light); margin-bottom: 12px; }
.pc-stock.in { color: #18a058; }
.pc-stock.out { color: #9aa3af; }
.pc-actions { display: flex; gap: 8px; margin-top: auto; }
.pc-actions .btn { flex: 1; padding: 8px 6px; font-size: 12px; }

/* ===== 优势 ===== */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 22px; }
.feature-card { text-align: center; padding: 26px 18px; background: #fff; border-radius: var(--radius); border: 1px solid var(--border); }
.feature-card i { font-size: 30px; color: var(--primary); margin-bottom: 12px; }
.feature-card h3 { font-size: 17px; }
.feature-card p { color: var(--text-light); font-size: 14px; margin: 0; }

/* ===== 品牌 ===== */
.brand-row { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.brand-chip {
  display: inline-flex; align-items: center; gap: 8px; padding: 10px 20px; background: #fff;
  border: 1px solid var(--border); border-radius: 30px; font-weight: 600;
}
.brand-chip img { height: 24px; width: auto; object-fit: contain; }

/* ===== 关于 / 订阅 ===== */
.section-about { background: #fff; }
.about-wrap { max-width: 860px; }
.about-text h2 { font-size: 26px; }
.about-text p { color: var(--text-light); font-size: 16px; margin-bottom: 20px; }
.newsletter { background: var(--primary-light); text-align: center; }
.newsletter h2 { font-size: 24px; }
.newsletter p { color: var(--text-light); }
.newsletter-form { display: flex; gap: 10px; max-width: 520px; margin: 18px auto 0; }
.newsletter-form input { flex: 1; padding: 12px 16px; border: 1px solid var(--border); border-radius: 10px; font-size: 15px; outline: none; }
.newsletter-form input:focus { border-color: var(--primary); }

/* ===== 商店布局 ===== */
.shop-layout { display: grid; grid-template-columns: 250px 1fr; gap: 30px; }
.shop-side .filter-box { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; margin-bottom: 16px; }
.shop-side .filter-box h3 { font-size: 15px; margin-bottom: 12px; display: flex; align-items: center; gap: 7px; }
.filter-list li { margin-bottom: 8px; }
.filter-list label { display: flex; align-items: center; gap: 8px; font-size: 14px; cursor: pointer; }
.price-inputs { display: flex; align-items: center; gap: 8px; }
.price-inputs input { width: 100%; padding: 8px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; }
.shop-side select { width: 100%; padding: 9px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; }
.filter-actions { display: grid; gap: 8px; }
.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 34px; flex-wrap: wrap; }
.pagination a { padding: 8px 14px; border: 1px solid var(--border); border-radius: 8px; font-weight: 600; }
.pagination a.active, .pagination a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ===== 空状态 ===== */
.empty-state { text-align: center; padding: 70px 20px; }
.empty-state i { font-size: 56px; color: #cbd5e1; margin-bottom: 16px; }
.empty-state h3 { font-size: 20px; }
.empty-state p { color: var(--text-light); margin-bottom: 20px; }

/* ===== 产品详情 ===== */
.breadcrumb { background: var(--bg-soft); padding: 12px 0; font-size: 13px; color: var(--text-light); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb i { font-size: 10px; margin: 0 6px; opacity: .6; }
.pd-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.pd-main { background: var(--bg-soft); border-radius: var(--radius); overflow: hidden; position: relative; padding-top: 90%; }
.pd-main img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.pd-noimg { display: flex; align-items: center; justify-content: center; height: 380px; color: #cbd5e1; font-size: 60px; }
.pd-thumbs { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.pd-thumb { width: 76px; height: 76px; border: 2px solid var(--border); border-radius: 10px; overflow: hidden; cursor: pointer; background: #fff; }
.pd-thumb.active { border-color: var(--primary); }
.pd-thumb img { width: 100%; height: 100%; object-fit: cover; }
.pd-info h1 { font-size: 28px; }
.pd-tags { display: flex; flex-wrap: wrap; gap: 14px; color: var(--text-light); font-size: 13px; margin-bottom: 14px; }
.pd-price { display: flex; align-items: baseline; gap: 10px; padding: 16px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.pd-price-now { color: #e5343d; font-size: 32px; font-weight: 800; }
.pd-price-old { color: #9aa3af; text-decoration: line-through; }
.pd-unit { color: var(--text-light); }
.pd-stock { display: flex; gap: 18px; font-size: 14px; }
.pd-stock .in { color: #18a058; } .pd-stock .out { color: #9aa3af; }
.pd-moq { color: var(--text-light); }
.pd-summary { color: var(--text-light); }
.pd-buy { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin: 18px 0 10px; }
.qty-box { display: flex; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.qty-box button { width: 38px; height: 42px; border: none; background: #fff; cursor: pointer; font-size: 18px; color: var(--text); }
.qty-box button:hover { background: var(--bg-soft); }
.qty-box input { width: 56px; text-align: center; border: none; border-left: 1px solid var(--border); border-right: 1px solid var(--border); font-size: 15px; outline: none; }
.pd-ship { color: var(--text-light); font-size: 14px; }
.pd-tabs { margin-top: 50px; }
.tab-head { display: flex; gap: 8px; border-bottom: 2px solid var(--border); }
.tab-head button { border: none; background: none; padding: 12px 22px; font-weight: 600; font-size: 15px; cursor: pointer; color: var(--text-light); border-bottom: 2px solid transparent; margin-bottom: -2px; font-family: inherit; }
.tab-head button.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-pane { display: none; padding: 24px 0; }
.tab-pane.active { display: block; }
.rich-text { font-size: 15px; line-height: 1.9; }
.rich-text img { max-width: 100%; border-radius: 10px; margin: 10px 0; }
.spec-text { white-space: pre-wrap; font-family: inherit; background: var(--bg-soft); padding: 18px; border-radius: var(--radius); font-size: 14px; }
.related-wrap { margin-top: 46px; }

/* ===== 购物车 / 询价 ===== */
.cart-layout, .quote-layout { display: grid; grid-template-columns: 1fr 330px; gap: 28px; align-items: start; }
.cart-item { display: flex; gap: 16px; align-items: center; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; margin-bottom: 14px; }
.ci-img { width: 88px; height: 88px; border-radius: 10px; overflow: hidden; background: var(--bg-soft); flex-shrink: 0; position: relative; }
.ci-img img { width: 100%; height: 100%; object-fit: cover; }
.ci-info { flex: 1; min-width: 0; }
.ci-info h3 { font-size: 15px; margin-bottom: 4px; }
.ci-sku, .ci-price { font-size: 13px; color: var(--text-light); margin: 0; }
.ci-qty input { width: 66px; padding: 7px; border: 1px solid var(--border); border-radius: 8px; text-align: center; }
.ci-amount { font-weight: 700; color: #e5343d; min-width: 90px; text-align: right; }
.ci-remove { border: none; background: none; color: #9aa3af; cursor: pointer; font-size: 16px; padding: 8px; }
.ci-remove:hover { color: #e5343d; }
.cart-summary, .checkout-summary { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; position: sticky; top: 90px; }
.cart-summary h3, .checkout-summary h3 { font-size: 17px; margin-bottom: 16px; }
.cs-row { display: flex; justify-content: space-between; padding: 8px 0; font-size: 15px; }
.cs-row.total { border-top: 1px solid var(--border); margin-top: 8px; padding-top: 14px; font-size: 18px; }
.cs-row.total strong { color: #e5343d; }
.cs-item { display: flex; justify-content: space-between; gap: 10px; font-size: 14px; padding: 6px 0; border-bottom: 1px dashed var(--border); }
.cs-note { font-size: 12px; color: var(--text-light); margin: 10px 0 16px; }
.cs-quote { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--border); }
.cs-quote p { font-size: 12px; color: var(--text-light); }

/* ===== 结算 ===== */
.checkout-layout { display: grid; grid-template-columns: 1fr 330px; gap: 28px; align-items: start; }
.ck-box { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin-bottom: 18px; }
.ck-box h3 { font-size: 16px; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--text-light); }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 9px;
  font-size: 14px; font-family: inherit; outline: none; transition: var(--transition);
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(22,104,220,.1); }
.pay-options { display: grid; gap: 10px; }
.pay-options label { display: flex; align-items: center; gap: 10px; padding: 12px; border: 1px solid var(--border); border-radius: 10px; cursor: pointer; font-size: 14px; }
.pay-options label:hover { border-color: var(--primary); background: var(--primary-light); }
.pay-note { font-size: 13px; color: var(--text-light); margin-top: 12px; }

/* ===== 订单成功 ===== */
.order-success { max-width: 720px; margin: 0 auto; text-align: center; }
.success-icon { font-size: 62px; color: #18a058; margin-bottom: 12px; }
.success-sub { color: var(--text-light); font-size: 17px; }
.order-meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; background: var(--bg-soft); border-radius: var(--radius); padding: 18px; margin: 24px 0; }
.order-meta span { display: block; font-size: 12px; color: var(--text-light); }
.order-meta strong { font-size: 15px; }
.order-items { text-align: left; border: 1px solid var(--border); border-radius: var(--radius); padding: 8px 18px; margin-bottom: 20px; }
.oi-row { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--border); font-size: 14px; }
.success-note { color: var(--text-light); margin-bottom: 20px; }
.success-actions { display: flex; gap: 12px; justify-content: center; }
.success-box { text-align: center; padding: 40px 20px; }
.success-box i { font-size: 56px; color: #18a058; }
.alert-success { background: #e9f7ef; color: #18a058; padding: 12px 16px; border-radius: 10px; margin-bottom: 18px; font-size: 14px; }

/* ===== 联系我们 ===== */
.contact-layout { display: grid; grid-template-columns: 1fr 360px; gap: 34px; align-items: start; }
.contact-form-wrap h2, .contact-info h2 { font-size: 21px; margin-bottom: 18px; }
.contact-info ul li { display: flex; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--border); }
.contact-info li i { color: var(--primary); font-size: 18px; margin-top: 3px; }
.contact-info li strong { display: block; font-size: 13px; color: var(--text-light); font-weight: 600; }
.contact-info li span { font-size: 15px; }
.official-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 18px; color: var(--primary); font-weight: 600; }

/* ===== 页脚 ===== */
.site-footer { background: var(--dark); color: #aab6c5; padding: 50px 0 24px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 34px; }
.footer-logo { display: inline-flex; align-items: center; gap: 8px; color: #fff; font-size: 19px; font-weight: 800; margin-bottom: 14px; }
.footer-logo img { height: 34px; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.footer-col ul li { margin-bottom: 9px; font-size: 14px; }
.footer-col ul li a:hover { color: #fff; }
.footer-col p { font-size: 14px; }
.footer-slogan { color: #7f8c9b; font-size: 13px; }
.contact-list li { display: flex; gap: 10px; align-items: flex-start; }
.contact-list i { margin-top: 4px; color: var(--primary); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); margin-top: 34px; padding-top: 20px; text-align: center; font-size: 13px; }
.pay-methods { margin-bottom: 10px; }
.pay-methods i { font-size: 24px; margin: 0 6px; color: #dfe6ee; }
.copyright { margin-bottom: 4px; }
.currency-note { color: #7f8c9b; font-size: 12px; }

/* ===== Toast ===== */
.toast {
  position: fixed; left: 50%; bottom: 40px; transform: translateX(-50%) translateY(20px);
  background: rgba(22, 32, 44, .95); color: #fff; padding: 12px 24px; border-radius: 30px;
  font-size: 14px; opacity: 0; pointer-events: none; transition: var(--transition); z-index: 2000;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ===== 提示条 ===== */
.alert { padding: 12px 16px; border-radius: 8px; font-size: 14px; margin-bottom: 18px; display: flex; gap: 8px; align-items: flex-start; }
.alert i { margin-top: 2px; }
.alert-ok { background: #e8f6ee; color: #1c7a45; border: 1px solid #b9e4cc; }
.alert-err { background: #fdecec; color: #b3261e; border: 1px solid #f6c9c6; }
.alert-warn { background: #fff7e6; color: #8a5a00; border: 1px solid #f3dcaa; flex-direction: column; }
.alert-warn .devlink { margin: 8px 0 0; word-break: break-all; }
.alert-warn .devlink a { color: var(--primary); text-decoration: underline; }

/* ===== 登录 / 注册 / 找回密码 ===== */
.auth-wrap { display: flex; justify-content: center; padding: 10px 0 30px; }
.auth-card {
  width: 100%; max-width: 520px; background: #fff; border: 1px solid var(--border);
  border-radius: 14px; padding: 34px 34px 28px; box-shadow: var(--shadow);
}
.auth-title { font-size: 24px; margin: 0 0 6px; display: flex; align-items: center; gap: 10px; }
.auth-tip { color: var(--muted); font-size: 14px; margin: 0 0 18px; }
.auth-form { margin-top: 16px; }
.auth-form .btn { margin-top: 8px; }
.auth-links { margin-top: 20px; text-align: center; font-size: 14px; color: var(--muted); display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.auth-links a { color: var(--primary); font-weight: 500; }
.auth-sep { color: #ccc; }

/* ===== 会员中心 ===== */
.account-layout { display: grid; grid-template-columns: 260px 1fr; gap: 28px; align-items: start; }
.account-side { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 20px; position: sticky; top: 90px; }
.acc-user { display: flex; gap: 12px; align-items: center; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
.acc-user i { font-size: 38px; color: var(--primary); }
.acc-user-info { display: flex; flex-direction: column; overflow: hidden; }
.acc-user-info strong { font-size: 15px; }
.acc-user-info span { font-size: 12px; color: var(--muted); word-break: break-all; }
.acc-nav { display: flex; flex-direction: column; margin-top: 14px; gap: 2px; }
.acc-nav a { padding: 10px 12px; border-radius: 8px; color: var(--text); font-size: 14px; display: flex; gap: 10px; align-items: center; }
.acc-nav a i { width: 18px; color: var(--muted); }
.acc-nav a:hover { background: var(--bg); }
.acc-nav a.active { background: var(--primary); color: #fff; }
.acc-nav a.active i { color: #fff; }
.acc-nav a.acc-logout { margin-top: 10px; border-top: 1px solid var(--border); border-radius: 0; padding-top: 14px; color: #b3261e; }
.acc-nav a.acc-logout i { color: #b3261e; }

.account-main { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 26px; min-height: 380px; }
.acc-title { font-size: 20px; margin: 0 0 18px; }
.acc-sub { font-size: 16px; margin: 26px 0 12px; }
.acc-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.acc-stat { background: var(--bg); border-radius: 10px; padding: 16px 12px; text-align: center; }
.acc-stat i { font-size: 20px; color: var(--primary); display: block; margin-bottom: 6px; }
.acc-stat strong { display: block; font-size: 18px; }
.acc-stat span { font-size: 12px; color: var(--muted); }
.acc-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.acc-table th { text-align: left; padding: 10px 12px; background: var(--bg); color: var(--muted); font-weight: 500; }
.acc-table td { padding: 12px; border-bottom: 1px solid var(--border); }
.acc-empty { color: var(--muted); padding: 30px; text-align: center; }
.acc-form { max-width: 560px; }
.acc-form .btn { margin-top: 10px; }
.form-tip { display: block; margin-top: 6px; font-size: 12px; color: var(--muted); }
.status-tag { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12px; background: #eef2f7; color: #556; text-transform: capitalize; }
.status-tag.s-completed, .status-tag.s-shipped { background: #e8f6ee; color: #1c7a45; }
.status-tag.s-cancelled { background: #fdecec; color: #b3261e; }
.status-tag.s-processing { background: #e8f0fe; color: #1a56c4; }
.order-meta { display: flex; gap: 24px; flex-wrap: wrap; font-size: 14px; color: var(--muted); margin-bottom: 18px; }
.order-detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 22px 0; padding-top: 20px; border-top: 1px solid var(--border); }
.order-detail-grid h4 { font-size: 14px; margin: 0 0 8px; }
.order-detail-grid p { margin: 0 0 10px; font-size: 14px; color: var(--muted); }
.ck-logged { font-size: 13px; color: #1c7a45; background: #e8f6ee; padding: 8px 12px; border-radius: 6px; margin-bottom: 14px; }
.ck-logged a { text-decoration: underline; }

/* ===== 响应式 ===== */
@media (max-width: 992px) {
  .shop-layout, .cart-layout, .quote-layout, .checkout-layout, .contact-layout, .account-layout { grid-template-columns: 1fr; }
  .account-side { position: static; }
  .acc-stats { grid-template-columns: 1fr 1fr; }
  .order-detail-grid { grid-template-columns: 1fr; }
  .pd-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cart-summary, .checkout-summary { position: static; }
}
@media (max-width: 768px) {
  .header-search { order: 3; max-width: none; }
  .main-nav {
    display: none; position: absolute; top: var(--header-h); left: 0; right: 0; background: #fff;
    flex-direction: column; align-items: stretch; gap: 0; padding: 10px 20px; border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 0; border-bottom: 1px solid var(--border); }
  .main-nav a.active::after { display: none; }
  .mobile-toggle { display: flex; margin-left: auto; }
  .header-inner { flex-wrap: wrap; height: auto; padding: 12px 0; gap: 12px; }
  .hero-content h1 { font-size: 30px; }
  .hero-slide { min-height: 340px; }
  .section { padding: 40px 0; }
  .product-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .newsletter-form { flex-direction: column; }
}