/* =========================================================
 * GlobalMart 外贸自建站 - 全平台自适应样式
 * 断点(移动优先):
 *   默认 ≤640  移动端
 *   641px+    平板  (min-width: 641px)
 *   1025px+   桌面  (min-width: 1025px)
 * ========================================================= */

*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }
:root{
  --c-primary:#2563eb; --c-primary-d:#1d4ed8; --c-primary-l:#eff6ff;
  --c-danger:#dc2626;  --c-success:#16a34a; --c-warning:#f59e0b;
  --c-text:#1f2937;    --c-text-2:#374151; --c-muted:#6b7280;
  --c-bg:#f8fafc;      --c-card:#fff;      --c-line:#e5e7eb;
  --c-line-2:#f1f5f9;  --c-dark:#0f172a;   --c-dark-2:#1e293b;
  --shadow:0 1px 3px rgba(0,0,0,.08);
  --shadow-lg:0 8px 24px rgba(0,0,0,.12);
  --radius:10px;
}
html{-webkit-text-size-adjust:100%}
body{font-family:"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--c-text);background:var(--c-bg);font-size:15px;line-height:1.6}
a{color:var(--c-primary);text-decoration:none}
a:hover{color:var(--c-primary-d)}
img{max-width:100%;height:auto;display:block}
input,select,textarea,button{font-family:inherit;font-size:inherit}
button{cursor:pointer}
.container{max-width:1200px;margin:0 auto;padding:0 14px}
[hidden]{display:none!important}

/* ============ 顶部通栏 ============ */
.topbar{background:var(--c-dark);color:#cbd5e1;font-size:12px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;min-height:32px;gap:10px;flex-wrap:wrap;padding-top:4px;padding-bottom:4px}
.topbar a{color:#93c5fd;margin-left:10px}
.topbar a:first-child{margin-left:0}

/* ============ 站点头部 ============ */
.site-header{background:#fff;border-bottom:1px solid var(--c-line)}
.header-main{display:flex;align-items:center;gap:16px;padding:12px 0;flex-wrap:wrap}
.logo{font-size:22px;font-weight:800;color:var(--c-dark);white-space:nowrap}
.logo span{color:var(--c-primary)}
.search-box{flex:1;display:flex;min-width:0}
.search-box input{flex:1;min-width:0;border:2px solid var(--c-primary);padding:8px 12px;border-radius:6px 0 0 6px;outline:none;font-size:14px}
.search-box button{background:var(--c-primary);color:#fff;border:none;padding:0 18px;border-radius:0 6px 6px 0;font-size:14px;white-space:nowrap}
.header-links{display:flex;gap:12px;align-items:center;font-size:14px;white-space:nowrap}
.cart-link{position:relative}
.cart-count{background:var(--c-danger);color:#fff;font-size:11px;border-radius:9px;padding:1px 6px;position:absolute;top:-8px;right:-12px;min-width:18px;text-align:center}

/* ============ 主导航 + 汉堡菜单 ============ */
nav.main-nav{background:#fff;border-top:1px solid var(--c-line-2);position:relative}
nav.main-nav .container{display:flex;gap:4px;min-height:44px;align-items:center;flex-wrap:wrap;position:relative}
nav.main-nav a{padding:6px 12px;border-radius:6px;color:var(--c-text-2);font-weight:500;font-size:14px}
nav.main-nav a.active,nav.main-nav a:hover{background:var(--c-primary-l);color:var(--c-primary)}
.menu-toggle{display:none;background:none;border:1px solid var(--c-line);border-radius:6px;padding:6px 10px;font-size:18px;color:var(--c-text-2);margin-left:auto}

/* ============ Hero ============ */
.hero{background:linear-gradient(120deg,#1e3a8a,#2563eb 60%,#3b82f6);color:#fff;padding:40px 0;text-align:center}
.hero h1{font-size:26px;margin-bottom:10px;line-height:1.3}
.hero p{opacity:.9;margin-bottom:18px;font-size:14px}

/* ============ 通用按钮 ============ */
.btn{display:inline-block;padding:9px 20px;border-radius:6px;border:none;cursor:pointer;font-size:14px;transition:.15s;text-align:center;line-height:1.4}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-d);color:#fff}
.btn-outline{background:transparent;border:1px solid rgba(255,255,255,.7);color:#fff}
.btn-danger{background:var(--c-danger);color:#fff}
.btn-success{background:var(--c-success);color:#fff}
.btn-sm{padding:5px 12px;font-size:13px}
.btn-block{display:block;width:100%}

/* ============ 区块 ============ */
.section{padding:28px 0}
.section-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;flex-wrap:wrap;gap:10px}
.section-title h2{font-size:20px;color:var(--c-dark);border-left:4px solid var(--c-primary);padding-left:10px}

/* ============ 商品网格(移动优先:1 列) ============ */
.product-grid{display:grid;grid-template-columns:1fr;gap:14px}
.product-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.2s}
.product-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.product-card .img{aspect-ratio:1;overflow:hidden;background:#f1f5f9}
.product-card img{width:100%;height:100%;object-fit:cover}
.product-card .body{padding:10px 12px 14px}
.product-card .name{font-size:14px;min-height:40px;overflow:hidden;color:var(--c-text);line-height:20px;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.product-card .price{color:var(--c-danger);font-weight:700;font-size:17px}
.product-card .meta{color:#9ca3af;font-size:12px;margin-top:3px}

/* ============ 团购卡片 ============ */
.gb-card{background:#fff;border-radius:var(--radius);padding:14px;display:flex;gap:14px;box-shadow:var(--shadow);margin-bottom:12px;flex-wrap:wrap}
.gb-card img{width:100%;max-width:120px;height:120px;border-radius:8px;object-fit:cover}
.gb-tag{background:#fee2e2;color:var(--c-danger);font-size:12px;padding:2px 8px;border-radius:4px;display:inline-block;margin-bottom:6px}
.gb-progress{height:8px;background:var(--c-line-2);border-radius:4px;overflow:hidden;margin:8px 0}
.gb-progress i{display:block;height:100%;background:linear-gradient(90deg,#f97316,#dc2626)}
.old-price{color:#9ca3af;text-decoration:line-through;margin-left:8px;font-size:13px}
.big-price{color:var(--c-danger);font-size:22px;font-weight:800}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-dark);color:#94a3b8;margin-top:40px;padding:30px 0 20px;font-size:13px}
.footer-cols{display:grid;grid-template-columns:1fr;gap:22px;margin-bottom:20px}
.site-footer h4{color:#e2e8f0;margin-bottom:10px;font-size:14px}
.site-footer a{color:#94a3b8;display:block;margin-bottom:6px}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid var(--c-dark-2);padding-top:14px;text-align:center;font-size:12px}

/* ============ 订阅条 ============ */
.subscribe-bar{background:var(--c-primary-l);padding:22px 0}
.subscribe-bar .inner{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap}
.subscribe-form{display:flex;width:100%;max-width:420px}
.subscribe-form input{flex:1;min-width:0;padding:9px 12px;border:1px solid #cbd5e1;border-radius:6px 0 0 6px;outline:none}
.subscribe-form button{border-radius:0 6px 6px 0;flex-shrink:0}

/* ============ 面包屑 ============ */
.crumbs{padding:10px 0;color:var(--c-muted);font-size:13px}

/* ============ 表单 ============ */
.form-card{background:#fff;border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);max-width:480px;margin:24px auto}
.form-card.wide{max-width:760px}
.form-card h2{margin-bottom:16px;font-size:19px}
.form-group{margin-bottom:14px}
.form-group label{display:block;margin-bottom:5px;font-size:13px;color:var(--c-text-2);font-weight:600}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:8px 11px;border:1px solid #d1d5db;border-radius:6px;font-size:14px;outline:none}
.form-group input:focus,.form-group textarea:focus{border-color:var(--c-primary)}
.form-group textarea{min-height:90px;resize:vertical}
.form-row{display:grid;grid-template-columns:1fr;gap:12px}
.error-msg{background:#fef2f2;color:var(--c-danger);border:1px solid #fecaca;padding:9px 12px;border-radius:6px;margin-bottom:12px;font-size:13px}
.success-msg{background:#f0fdf4;color:var(--c-success);border:1px solid #bbf7d0;padding:9px 12px;border-radius:6px;margin-bottom:12px;font-size:13px}
.alert{padding:9px 12px;border-radius:4px;margin-bottom:12px;font-size:13px}
.alert-info{background:#dbeafe;color:#1e40af}

/* ============ 商品详情 ============ */
.detail-wrap{display:grid;grid-template-columns:1fr;gap:20px;background:#fff;padding:18px;border-radius:var(--radius);box-shadow:var(--shadow)}
.detail-gallery img.main{width:100%;border-radius:8px;aspect-ratio:1;object-fit:cover}
.detail-gallery .thumbs{display:flex;gap:6px;margin-top:8px;overflow-x:auto}
.detail-gallery .thumbs img{width:60px;height:60px;border-radius:6px;object-fit:cover;border:2px solid transparent;cursor:pointer;flex-shrink:0}
.qty-control{display:inline-flex;border:1px solid #d1d5db;border-radius:6px;overflow:hidden}
.qty-control button{width:34px;height:36px;border:none;background:#f9fafb;font-size:16px}
.qty-control input{width:54px;text-align:center;border:none;outline:none}

/* ============ 表格 ============ */
.table-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:14px;overflow-x:auto;-webkit-overflow-scrolling:touch}
table.table,table.data{width:100%;border-collapse:collapse;font-size:13px}
table.table th,table.data th{text-align:left;padding:8px 10px;background:#f8fafc;color:#475569;border-bottom:1px solid var(--c-line);white-space:nowrap;font-weight:600}
table.table td,table.data td{padding:8px 10px;border-bottom:1px solid var(--c-line-2);vertical-align:middle}
table.table tr:hover td,table.data tr:hover td{background:#f8fafc}

/* ============ 徽章 ============ */
.badge{display:inline-block;padding:2px 9px;border-radius:10px;font-size:12px;font-weight:500;background:#e5e7eb;color:#475569;white-space:nowrap}
.badge-blue{background:#dbeafe;color:#1d4ed8}
.badge-green{background:#dcfce7;color:#15803d}
.badge-red{background:#fee2e2;color:#b91c1c}
.badge-gray{background:var(--c-line-2);color:#475569}
.badge-orange{background:#ffedd5;color:#c2410c}
.badge.pending{background:#fef3c7;color:#92400e}
.badge.active{background:#d1fae5;color:#065f46}
.badge.disabled,.badge.rejected{background:#fee2e2;color:#991b1b}
.badge.approved,.badge.paid{background:#dbeafe;color:#1e40af}

/* ============ 分页 ============ */
.pager{display:flex;gap:6px;justify-content:center;margin-top:20px;flex-wrap:wrap}
.pager a,.pager span{padding:6px 12px;border-radius:6px;background:#fff;border:1px solid var(--c-line);font-size:13px;color:var(--c-text-2)}
.pager .cur{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}

/* ============ 选项卡 ============ */
.tabs{display:flex;gap:4px;border-bottom:2px solid var(--c-line);margin-bottom:16px;flex-wrap:wrap;overflow-x:auto}
.tabs a{padding:8px 14px;color:var(--c-muted);border-bottom:2px solid transparent;margin-bottom:-2px;font-weight:500;white-space:nowrap;font-size:13px}
.tabs a.active{color:var(--c-primary);border-color:var(--c-primary)}

/* ============ 用户中心 / 代理后台侧栏 ============ */
.panel-wrap{display:grid;grid-template-columns:1fr;gap:18px;align-items:start;max-width:1100px;margin:18px auto}
.user-wrap{display:flex;flex-direction:column;gap:16px;max-width:1100px;margin:16px auto;padding:0 14px}
.side-menu,.user-side,.panel-wrap > aside{background:#fff;border-radius:var(--radius);padding:14px;box-shadow:var(--shadow)}
.side-menu a,.user-side a{display:block;padding:8px 12px;border-radius:6px;color:var(--c-text-2);margin-bottom:2px;font-size:14px}
.side-menu a.active,.side-menu a:hover,.user-side a.active,.user-side a:hover{background:var(--c-primary);color:#fff}
.user-side a:hover,.user-side a.active{background:#c2410c;color:#fff}
.panel-wrap > main,.user-main{flex:1;background:#fff;border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);min-width:0}

/* ============ 统计卡片 ============ */
.stat-grid{display:grid;grid-template-columns:1fr;gap:12px;margin-bottom:18px}
.stat-card{background:#fff;border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.stat-card .num,.stat-card .value{font-size:22px;font-weight:800;color:var(--c-dark)}
.stat-card .label,.stat-card .l{color:var(--c-muted);font-size:13px;margin-top:3px}
.stat-card.accent .num,.stat-card.accent .value{color:var(--c-primary)}
.card{background:#fff;border:1px solid var(--c-line);border-radius:6px}

/* ============ 简易图表条 ============ */
.bar-chart{display:flex;align-items:flex-end;gap:4px;height:140px;padding:10px 0;overflow-x:auto}
.bar-chart .bar-item{flex:1;min-width:24px;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%}
.bar-chart .bar{width:70%;background:linear-gradient(180deg,#60a5fa,#2563eb);border-radius:4px 4px 0 0;min-height:3px}
.bar-chart .bar-label{font-size:10px;color:#9ca3af;margin-top:6px;transform:rotate(-45deg);white-space:nowrap;transform-origin:right center}

/* ============ 博客 ============ */
.blog-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);margin-bottom:14px}
.blog-card img.cover{width:100%;height:160px;object-fit:cover}
.blog-card .body{padding:14px}
.article-content{line-height:1.9;white-space:pre-wrap;color:var(--c-text-2);font-size:14px}

/* ============ 评论区 ============ */
.comment-item{border-bottom:1px solid var(--c-line-2);padding:12px 0}
.stars{color:var(--c-warning);letter-spacing:2px}

/* ============ 后台布局 ============ */
.admin-body,.admin-wrap{display:flex;flex-direction:column;min-height:100vh}
.admin-side{background:var(--c-dark);color:#cbd5e1;padding:14px 0;width:100%}
.admin-side .brand,.admin-side h2{color:#fff;font-weight:800;font-size:16px;padding:6px 14px 14px;border-bottom:1px solid var(--c-dark-2);margin-bottom:8px}
.admin-side .group{font-size:11px;color:#64748b;padding:10px 14px 4px;text-transform:uppercase;letter-spacing:1px}
.admin-side a{display:block;color:#cbd5e1;padding:8px 14px;border-radius:6px;font-size:14px;margin-bottom:1px}
.admin-side a:hover{background:var(--c-dark-2);color:#fff}
.admin-side a.active{background:var(--c-primary);color:#fff}
.admin-main,.admin-wrap > main{flex:1;padding:18px;background:#f1f5f9;min-width:0}
.admin-main h1{font-size:20px;margin-bottom:14px;color:var(--c-dark)}
.admin-card{background:#fff;border-radius:8px;padding:16px;box-shadow:var(--shadow);margin-bottom:14px}
.menu-toggle-admin{display:none;background:var(--c-dark-2);color:#fff;border:none;padding:10px 14px;font-size:18px;width:100%;text-align:left}

/* ============ 消息页 ============ */
.msg-page{text-align:center;padding:60px 16px}
.msg-page h1{font-size:22px;margin-bottom:10px}
.msg-page p{color:var(--c-muted);margin-bottom:18px}

/* ============ 平板(≥641px) ============ */
@media (min-width:641px){
  body{font-size:15px}
  .container{padding:0 20px}
  .topbar .container{min-height:34px}
  .header-main{padding:14px 0;gap:20px}
  .logo{font-size:24px}
  .search-box input{padding:9px 14px}
  .search-box button{padding:0 22px}
  .hero{padding:50px 0}
  .hero h1{font-size:30px}
  .hero p{font-size:15px}
  .section{padding:34px 0}
  .section-title h2{font-size:21px}
  .product-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .footer-cols{grid-template-columns:1fr 1fr;gap:26px}
  .detail-wrap{grid-template-columns:1fr 1fr;padding:22px;gap:24px}
  .form-row{grid-template-columns:1fr 1fr;gap:14px}
  .form-card{padding:26px}
  .form-card h2{font-size:20px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .stat-card .num,.stat-card .value{font-size:24px}
  .panel-wrap{grid-template-columns:220px 1fr;padding:0 14px}
  .user-wrap{flex-direction:row;padding:0 14px}
  .user-side{flex:0 0 200px}
  .user-side h3{padding:0 14px 8px}
  .user-side .agent-info{padding:0 14px 12px}
  .user-main{padding:22px}
  .admin-wrap{flex-direction:row;align-items:stretch}
  .admin-side{width:220px;flex-shrink:0;padding:18px 0;min-height:100vh}
  .admin-side h2{padding:0 20px 16px;margin-bottom:10px}
  .admin-side a{padding:8px 16px;font-size:13.5px}
  .menu-toggle-admin{display:none}
  .detail-gallery .thumbs img{width:64px;height:64px}
  table.table,table.data{font-size:14px}
  table.table th,table.data th,table.table td,table.data td{padding:9px 12px}
  .topbar{font-size:13px}
}

/* ============ 桌面(≥1025px) ============ */
@media (min-width:1025px){
  .container{padding:0 24px}
  .header-main{padding:16px 0;gap:24px}
  .logo{font-size:26px}
  .hero{padding:64px 0}
  .hero h1{font-size:36px;margin-bottom:14px}
  .hero p{font-size:16px;margin-bottom:24px}
  .section{padding:40px 0}
  .section-title h2{font-size:22px}
  .product-grid{grid-template-columns:repeat(4,1fr);gap:18px}
  .footer-cols{grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}
  .detail-wrap{grid-template-columns:420px 1fr;padding:26px;gap:32px}
  .form-card{padding:28px}
  .form-card.wide{max-width:760px}
  .stat-grid{grid-template-columns:repeat(4,1fr);gap:16px}
  .stat-card .num,.stat-card .value{font-size:26px}
  .panel-wrap{grid-template-columns:220px 1fr;gap:22px;padding:0}
  .user-wrap{padding:0;margin:20px auto}
  .msg-page{padding:90px 20px}
  .msg-page h1{font-size:26px}
  .admin-main{padding:24px 26px}
  .admin-main h1{font-size:21px;margin-bottom:18px}
  .admin-card{padding:20px}
  .menu-toggle{display:none}
  nav.main-nav .container{height:44px;flex-wrap:nowrap}
}

/* ============ 平板及以下(<1025px):汉堡菜单激活 ============ */
@media (max-width:1024px){
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
  nav.main-nav .container{flex-direction:column;align-items:stretch;padding:0 14px;min-height:auto;gap:6px;padding-bottom:8px}
  nav.main-nav.collapsed .container{display:none}
  nav.main-nav .container a{display:block;width:100%;padding:9px 12px;border-radius:6px;text-align:left;font-size:15px}
  nav.main-nav .container a.active,nav.main-nav .container a:hover{background:var(--c-primary-l);color:var(--c-primary)}
  /* 后台侧栏在 <1025px 折叠为顶部菜单 */
  .admin-body,.admin-wrap{flex-direction:column}
  .admin-side{width:100%;min-height:auto;padding:0}
  .admin-side .brand,.admin-side h2{padding:10px 14px;margin-bottom:0;border-bottom:none}
  .admin-side .menu{display:none;padding-bottom:10px}
  .admin-side.expanded .menu{display:block}
  .admin-side .group{padding:10px 14px 4px}
  .menu-toggle-admin{display:block}
}

/* ============ 移动端(<641px)优化 ============ */
@media (max-width:640px){
  body{font-size:14px}
  .topbar .container{font-size:11px}
  .topbar a{margin-left:6px}
  .header-main{gap:10px}
  .header-links{width:100%;justify-content:space-between;order:3;padding-top:8px;border-top:1px solid var(--c-line-2)}
  .header-links > * + *{margin-left:0}
  .search-box{order:2;width:100%}
  .logo{order:1;font-size:20px}
  .hero{padding:30px 0}
  .hero h1{font-size:22px}
  .subscribe-bar .inner{flex-direction:column;align-items:stretch;text-align:center}
  .subscribe-form{max-width:100%}
  .form-card{padding:18px;margin:16px auto}
  .detail-wrap{padding:14px}
  .qty-control button{width:32px;height:34px}
  .qty-control input{width:48px}
  .gb-card{flex-direction:column;align-items:flex-start}
  .gb-card img{max-width:100%;width:100%;height:180px}
  .table-card{padding:8px}
  table.table th,table.data th,table.table td,table.data td{padding:6px 8px;font-size:12px}
  .admin-main{padding:14px}
  .blog-card img.cover{height:140px}
  .section-title{flex-direction:column;align-items:flex-start}
  .stat-card .num,.stat-card .value{font-size:20px}
  .pager a,.pager span{padding:5px 9px;font-size:12px}
}