/* =========================================================
   越南校园海淘 · 管理后台样式
   浅色主题 / 无第三方依赖
   ========================================================= */
:root{
  --c-primary:#e2483c;
  --c-primary-dark:#c73a2f;
  --c-primary-soft:#fdeceb;
  --c-accent:#0f9d78;
  --c-warn:#e8890c;
  --c-danger:#d93025;
  --c-info:#2a6ff0;
  --c-bg:#f4f6f9;
  --c-panel:#ffffff;
  --c-border:#e6e9ef;
  --c-border-strong:#d4d9e2;
  --c-text:#1f2733;
  --c-text-2:#5a6474;
  --c-text-3:#98a1b0;
  --c-side:#1e2430;
  --c-side-2:#2a3140;
  --radius:10px;
  --shadow:0 1px 2px rgba(16,24,40,.05),0 4px 14px rgba(16,24,40,.06);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--font);font-size:14px;color:var(--c-text);
  background:var(--c-bg);-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 布局 ---------- */
.layout{display:flex;min-height:100vh}
.sidebar{
  width:214px;flex:0 0 214px;background:var(--c-side);color:#c7cede;
  display:flex;flex-direction:column;position:fixed;top:0;bottom:0;left:0;z-index:60;
  transition:transform .22s ease;
}
.main{flex:1;margin-left:214px;display:flex;flex-direction:column;min-width:0}

.brand{display:flex;align-items:center;gap:10px;padding:16px 16px;border-bottom:1px solid rgba(255,255,255,.07)}
.brand-logo{
  width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--c-primary),#ff7a5c);
  color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;letter-spacing:.5px;
}
.brand-txt b{display:block;color:#fff;font-size:14px;line-height:1.2}
.brand-txt small{color:#7c869a;font-size:11px}

.menu{flex:1;overflow-y:auto;padding:8px 0 24px}
.menu::-webkit-scrollbar{width:5px}
.menu::-webkit-scrollbar-thumb{background:#3a4152;border-radius:3px}
.menu-title{
  display:flex;align-items:center;gap:9px;padding:10px 16px;cursor:pointer;
  font-size:13px;color:#9aa4b8;user-select:none;
}
.menu-title:hover{color:#fff}
.menu-title .mi{width:16px;height:16px;flex:0 0 16px}
.menu-title span{flex:1}
.menu-title .arrow{width:14px;height:14px;transition:transform .2s;opacity:.6}
.menu-group.open .menu-title{color:#fff}
.menu-group.open .arrow{transform:rotate(90deg)}
.menu-items{display:none;padding-bottom:4px}
.menu-group.open .menu-items{display:block}
.menu-item{
  display:flex;align-items:center;padding:8px 16px 8px 41px;font-size:13px;color:#aeb7c7;
  border-left:3px solid transparent;position:relative;
}
.menu-item:hover{background:var(--c-side-2);color:#fff}
.menu-item.active{background:var(--c-side-2);color:#fff;border-left-color:var(--c-primary)}
.badge{
  margin-left:auto;background:var(--c-primary);color:#fff;font-style:normal;
  font-size:11px;line-height:1;padding:3px 6px;border-radius:9px;
}

/* ---------- 顶栏 ---------- */
.topbar{
  height:56px;background:#fff;border-bottom:1px solid var(--c-border);
  display:flex;align-items:center;gap:12px;padding:0 18px;position:sticky;top:0;z-index:40;
}
.hamburger{display:none;background:none;border:0;padding:6px;cursor:pointer;color:var(--c-text-2)}
.page-title{font-size:16px;font-weight:600;margin:0;flex:1}
.topbar-right{display:flex;align-items:center;gap:14px}
.tb-link{display:flex;align-items:center;gap:5px;color:var(--c-text-2);font-size:13px}
.tb-link:hover{color:var(--c-primary)}
.tb-link svg{width:15px;height:15px}
.user-menu{position:relative;display:flex;align-items:center;gap:7px;cursor:pointer;padding:6px 4px}
.avatar{
  width:28px;height:28px;border-radius:50%;background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;
}
.uname{font-size:13px;color:var(--c-text-2)}
.dropdown{
  display:none;position:absolute;right:0;top:100%;background:#fff;border:1px solid var(--c-border);
  border-radius:8px;box-shadow:var(--shadow);min-width:130px;padding:5px;z-index:50;
}
.user-menu:hover .dropdown{display:block}
.dropdown a{display:block;padding:8px 11px;font-size:13px;border-radius:6px;color:var(--c-text-2)}
.dropdown a:hover{background:var(--c-bg);color:var(--c-text)}

.content{flex:1;padding:18px}
.foot{padding:14px 18px;color:var(--c-text-3);font-size:12px;text-align:center}

.mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:50}
body.nav-open .mask{display:block}

/* ---------- 卡片 ---------- */
.card{background:var(--c-panel);border:1px solid var(--c-border);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:16px}
.card-head{
  display:flex;align-items:center;gap:10px;padding:13px 16px;border-bottom:1px solid var(--c-border);
}
.card-head h3{margin:0;font-size:14px;font-weight:600;flex:1}
.card-head .sub{font-size:12px;color:var(--c-text-3);font-weight:400}
.card-body{padding:16px}
.card-body.tight{padding:0}

/* ---------- 统计卡 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:16px}
.stat{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--radius);
  padding:15px 16px;box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.stat .lbl{font-size:12px;color:var(--c-text-3);display:flex;align-items:center;gap:5px}
.stat .val{font-size:23px;font-weight:700;margin-top:7px;letter-spacing:-.4px;line-height:1.1}
.stat .ext{font-size:12px;color:var(--c-text-3);margin-top:6px}
.stat .ext b{color:var(--c-accent);font-weight:600}
.stat.p .val{color:var(--c-primary)}
.stat.g .val{color:var(--c-accent)}
.stat.b .val{color:var(--c-info)}
.stat.o .val{color:var(--c-warn)}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto}
table.tb{width:100%;border-collapse:collapse;font-size:13px}
table.tb th{
  background:#fafbfc;color:var(--c-text-2);font-weight:600;text-align:left;
  padding:10px 12px;border-bottom:1px solid var(--c-border);white-space:nowrap;font-size:12.5px;
}
table.tb td{padding:11px 12px;border-bottom:1px solid #f1f3f6;vertical-align:middle}
table.tb tbody tr:hover{background:#fcfcfd}
table.tb tbody tr:last-child td{border-bottom:0}
table.tb .num{font-variant-numeric:tabular-nums;white-space:nowrap}
table.tb .r{text-align:right}
table.tb .c{text-align:center}
.t-sub{color:var(--c-text-3);font-size:12px}
.empty{padding:46px 16px;text-align:center;color:var(--c-text-3);font-size:13px}
.empty svg{width:38px;height:38px;display:block;margin:0 auto 10px;opacity:.35}

/* ---------- 标签 ---------- */
.tag{display:inline-block;padding:2px 8px;border-radius:20px;font-size:12px;line-height:18px;white-space:nowrap}
.tag-default{background:#eef0f4;color:#5a6474}
.tag-primary{background:var(--c-primary-soft);color:var(--c-primary)}
.tag-success{background:#e6f6f0;color:#0f9d78}
.tag-warn{background:#fdf1e0;color:#c47408}
.tag-danger{background:#fdecea;color:#d93025}
.tag-info{background:#eaf1fe;color:#2a6ff0}
.tag-gray{background:#f2f3f5;color:#98a1b0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:5px;
  height:32px;padding:0 14px;border-radius:7px;border:1px solid var(--c-border-strong);
  background:#fff;color:var(--c-text);font-size:13px;cursor:pointer;white-space:nowrap;
  transition:all .15s;font-family:inherit;
}
.btn:hover{border-color:var(--c-text-3);background:#fafbfc}
.btn svg{width:15px;height:15px}
.btn-primary{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark)}
.btn-success{background:var(--c-accent);border-color:var(--c-accent);color:#fff}
.btn-success:hover{filter:brightness(.93)}
.btn-danger{background:var(--c-danger);border-color:var(--c-danger);color:#fff}
.btn-danger:hover{filter:brightness(.93)}
.btn-sm{height:26px;padding:0 9px;font-size:12px;border-radius:6px}
.btn-lg{height:40px;padding:0 22px;font-size:14px}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.btn-link{border:0;background:none;color:var(--c-info);padding:0 4px;height:auto}
.btn-link:hover{background:none;text-decoration:underline}
.btn-link.danger{color:var(--c-danger)}
.ops{display:flex;gap:2px;flex-wrap:wrap;align-items:center}
.ops .sep{color:var(--c-border-strong)}

/* ---------- 表单 ---------- */
.form-row{display:flex;gap:14px;margin-bottom:15px;align-items:flex-start}
.form-row.col{flex-direction:column;gap:6px}
.form-label{width:150px;flex:0 0 150px;padding-top:8px;font-size:13px;color:var(--c-text-2);text-align:right}
.form-label.req::before{content:'*';color:var(--c-danger);margin-right:3px}
.form-ctl{flex:1;min-width:0}
.form-tip{font-size:12px;color:var(--c-text-3);margin-top:5px;line-height:1.6}
input[type=text],input[type=password],input[type=number],input[type=date],input[type=datetime-local],input[type=email],select,textarea{
  width:100%;height:34px;padding:0 11px;border:1px solid var(--c-border-strong);border-radius:7px;
  font-size:13px;font-family:inherit;color:var(--c-text);background:#fff;outline:none;transition:border-color .15s,box-shadow .15s;
}
textarea{height:auto;padding:9px 11px;line-height:1.6;resize:vertical;min-height:76px}
input:focus,select:focus,textarea:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(226,72,60,.1)}
input[readonly],input[disabled],select[disabled]{background:#f7f8fa;color:var(--c-text-3)}
select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2398a1b0' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 9px center;background-size:15px;padding-right:30px}
.inline-group{display:flex;align-items:center;gap:8px}
.inline-group input{flex:1}
.suffix{font-size:13px;color:var(--c-text-3);white-space:nowrap}
.w-sm{max-width:150px}
.w-md{max-width:280px}
.w-lg{max-width:460px}

/* 开关 */
.switch{position:relative;display:inline-block;width:42px;height:23px;flex:0 0 42px}
.switch input{opacity:0;width:0;height:0;position:absolute}
.switch .slider{position:absolute;inset:0;background:#cfd4dd;border-radius:23px;transition:.2s;cursor:pointer}
.switch .slider:before{content:'';position:absolute;height:17px;width:17px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.2s}
.switch input:checked + .slider{background:var(--c-accent)}
.switch input:checked + .slider:before{transform:translateX(19px)}
.switch-item{display:inline-flex;align-items:center;gap:6px;cursor:pointer;margin-right:12px;vertical-align:middle}
.switch-item .switch{flex:none;margin-right:0}

/* 单选组 */
.radio-group{display:flex;flex-wrap:wrap;gap:8px}
.radio-card{
  border:1px solid var(--c-border-strong);border-radius:8px;padding:9px 13px;cursor:pointer;
  font-size:13px;transition:all .15s;background:#fff;position:relative;
}
.radio-card input{position:absolute;opacity:0}
.radio-card:hover{border-color:var(--c-primary)}
.radio-card.on{border-color:var(--c-primary);background:var(--c-primary-soft);color:var(--c-primary);font-weight:500}
.radio-card small{display:block;font-size:11px;color:var(--c-text-3);font-weight:400;margin-top:2px}
.radio-card.on small{color:var(--c-primary);opacity:.75}

.form-actions{
  display:flex;gap:10px;padding:15px 16px;border-top:1px solid var(--c-border);background:#fafbfc;
  border-radius:0 0 var(--radius) var(--radius);
}
.form-actions.sticky{position:sticky;bottom:0;z-index:20}

/* ---------- 筛选栏 ---------- */
.filter{
  display:flex;flex-wrap:wrap;gap:9px;align-items:center;padding:13px 16px;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--radius);margin-bottom:14px;box-shadow:var(--shadow);
}
.filter input,.filter select{width:auto;min-width:130px;height:32px}
.filter .lbl{font-size:13px;color:var(--c-text-2)}
.filter .spacer{flex:1}

/* 状态 Tab */
.tabs{display:flex;gap:2px;border-bottom:1px solid var(--c-border);padding:0 16px;overflow-x:auto}
.tabs a{
  padding:11px 14px;font-size:13px;color:var(--c-text-2);white-space:nowrap;
  border-bottom:2px solid transparent;margin-bottom:-1px;
}
.tabs a:hover{color:var(--c-text)}
.tabs a.active{color:var(--c-primary);border-bottom-color:var(--c-primary);font-weight:500}
.tabs a i{font-style:normal;color:var(--c-text-3);margin-left:3px;font-size:12px}
.tabs a.active i{color:var(--c-primary)}

/* ---------- 分页 ---------- */
.pager{display:flex;align-items:center;gap:5px;padding:13px 16px;flex-wrap:wrap}
.pager-info{font-size:12px;color:var(--c-text-3);margin-right:auto}
.pg{
  min-width:30px;height:30px;padding:0 8px;border:1px solid var(--c-border-strong);border-radius:6px;
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;color:var(--c-text-2);background:#fff;
}
.pg:hover{border-color:var(--c-primary);color:var(--c-primary)}
.pg.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.pg.disabled{opacity:.4;pointer-events:none}

/* ---------- 提示条 ---------- */
.alert{padding:11px 14px;border-radius:8px;font-size:13px;margin-bottom:14px;display:flex;align-items:center;gap:8px;line-height:1.6}
.alert-success{background:#e6f6f0;color:#0b7355;border:1px solid #c3e9dc}
.alert-error,.alert-danger{background:#fdecea;color:#b1271b;border:1px solid #f7ccc7}
.alert-warn{background:#fdf6e7;color:#96600a;border:1px solid #f5e2bd}
.alert-info{background:#eaf1fe;color:#1a4fb5;border:1px solid #c9dcfb}

/* ---------- 详情描述列表 ---------- */
.desc{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:0;border-top:1px solid var(--c-border)}
.desc-item{padding:11px 16px;border-bottom:1px solid #f1f3f6;display:flex;gap:10px;font-size:13px}
.desc-item .k{color:var(--c-text-3);flex:0 0 88px}
.desc-item .v{flex:1;word-break:break-all}
.desc-item .v b{font-weight:600}

/* ---------- 时间轴 ---------- */
.timeline{padding:8px 16px 16px}
.tl-item{display:flex;gap:12px;position:relative;padding-bottom:18px}
.tl-item:last-child{padding-bottom:0}
.tl-item:not(:last-child)::before{content:'';position:absolute;left:6px;top:16px;bottom:0;width:1px;background:var(--c-border)}
.tl-dot{width:13px;height:13px;border-radius:50%;background:#fff;border:3px solid var(--c-border-strong);flex:0 0 13px;margin-top:3px;z-index:1}
.tl-item:first-child .tl-dot{border-color:var(--c-accent)}
.tl-body{flex:1;font-size:13px}
.tl-time{font-size:12px;color:var(--c-text-3);margin-top:2px}

/* ---------- 关系树 ---------- */
.tree{font-size:13px;line-height:1.9}
.tree ul{list-style:none;margin:0;padding-left:22px;position:relative}
.tree > ul{padding-left:0}
.tree li{position:relative;padding-left:2px}
.tree ul ul::before{content:'';position:absolute;left:7px;top:0;bottom:12px;width:1px;background:var(--c-border-strong)}
.tree ul ul > li::before{content:'';position:absolute;left:-15px;top:15px;width:13px;height:1px;background:var(--c-border-strong)}
.tree .node{display:inline-flex;align-items:center;gap:7px;padding:3px 9px;border-radius:6px}
.tree .node:hover{background:var(--c-bg)}
.tree .node .nm{font-weight:500}

/* ---------- 徽标图片 ---------- */
.thumb{width:40px;height:40px;border-radius:6px;object-fit:cover;background:#f2f3f5;border:1px solid var(--c-border);display:block}
.thumb-lg{width:64px;height:64px}
.prod-cell{display:flex;gap:10px;align-items:center;min-width:210px}
.prod-cell .nm{font-size:13px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 弹窗 ---------- */
.modal{display:none;position:fixed;inset:0;background:rgba(20,26,36,.45);z-index:100;align-items:center;justify-content:center;padding:20px}
.modal.on{display:flex}
.modal-box{background:#fff;border-radius:12px;width:100%;max-width:480px;max-height:88vh;overflow:auto;box-shadow:0 20px 50px rgba(0,0,0,.2)}
.modal-head{padding:15px 18px;border-bottom:1px solid var(--c-border);font-weight:600;display:flex;align-items:center}
.modal-head .x{margin-left:auto;cursor:pointer;color:var(--c-text-3);font-size:20px;line-height:1}
.modal-body{padding:18px}
.modal-foot{padding:13px 18px;border-top:1px solid var(--c-border);display:flex;gap:10px;justify-content:flex-end;background:#fafbfc}

/* ---------- 登录页 ---------- */
.login-page{
  min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;
  background:linear-gradient(135deg,#1e2430 0%,#2b3444 55%,#3a2a2e 100%);
}
.login-box{width:100%;max-width:376px;background:#fff;border-radius:14px;padding:34px 30px;box-shadow:0 18px 50px rgba(0,0,0,.28)}
.login-box .lg{width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,var(--c-primary),#ff7a5c);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:19px;margin:0 auto 15px}
.login-box h2{text-align:center;margin:0 0 4px;font-size:19px}
.login-box .sb{text-align:center;color:var(--c-text-3);font-size:12.5px;margin-bottom:22px}
.login-box .fi{margin-bottom:13px}
.login-box input{height:40px}
.login-box .btn{width:100%;height:41px;margin-top:6px}
.login-tip{margin-top:16px;font-size:12px;color:var(--c-text-3);text-align:center;line-height:1.7}

/* ---------- 图表 ---------- */
.chart{width:100%;height:220px}
.chart-legend{display:flex;gap:16px;font-size:12px;color:var(--c-text-2);padding:0 16px 12px}
.chart-legend i{display:inline-block;width:9px;height:9px;border-radius:2px;margin-right:5px}

/* ---------- 工具 ---------- */
.mb0{margin-bottom:0}
.mt10{margin-top:10px}
.flex{display:flex}
.flex-1{flex:1}
.gap8{gap:8px}
.gap14{gap:14px}
.between{justify-content:space-between}
.center{align-items:center}
.wrap{flex-wrap:wrap}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.text-danger{color:var(--c-danger)}
.text-success{color:var(--c-accent)}
.text-warn{color:var(--c-warn)}
.text-muted{color:var(--c-text-3)}
.text-primary{color:var(--c-primary)}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px}
.nowrap{white-space:nowrap}
.strong{font-weight:600}
.big{font-size:16px;font-weight:700}

@media (max-width:1100px){
  .grid2{grid-template-columns:1fr}
}
@media (max-width:860px){
  .sidebar{transform:translateX(-100%)}
  body.nav-open .sidebar{transform:translateX(0)}
  .main{margin-left:0}
  .hamburger{display:block}
  .form-label{width:auto;flex:none;text-align:left;padding-top:0}
  .form-row{flex-direction:column;gap:6px}
  .content{padding:12px}
  .stat .val{font-size:20px}
}