/* ===========================================================
   防伪溯源管理系统 - 后台样式
   纯手写 CSS，零外部依赖，加载快、无 CDN 劫持风险
   =========================================================== */

:root{
  --brand:#2d6cdf; --brand-dark:#1f56bd; --brand-light:#eaf1ff;
  --ok:#00a870; --ok-light:#e6f7f1;
  --warn:#ff9c00; --warn-light:#fff5e6;
  --err:#e4393c; --err-light:#ffebec;
  --text:#1f2329; --text-2:#51565d; --text-3:#8f959e; --text-4:#c4c8ce;
  --bg:#f4f6f9; --card:#fff; --line:#e8eaed; --line-2:#f0f2f5;
  --radius:8px; --radius-sm:5px;
  --shadow:0 1px 3px rgba(20,30,50,.06),0 1px 2px rgba(20,30,50,.04);
  --shadow-lg:0 8px 28px rgba(20,30,50,.13);
  --topbar-h:52px; --sidebar-w:214px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB",
         "Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:var(--font); font-size:13px; line-height:1.6; color:var(--text);
  background:var(--bg); -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-dark)}
.ico{flex-shrink:0;vertical-align:-2px}

/* ============ 顶栏 ============ */
.topbar{
  position:fixed;top:0;left:0;right:0;height:var(--topbar-h);z-index:100;
  display:flex;align-items:center;padding:0 16px;
  background:#fff;border-bottom:1px solid var(--line);box-shadow:0 1px 4px rgba(20,30,50,.04);
}
.topbar-brand{display:flex;align-items:center;gap:8px;width:var(--sidebar-w);color:var(--brand)}
.brand-name{font-size:15px;font-weight:600;color:var(--text);letter-spacing:.3px}
.brand-ver{font-size:11px;color:var(--text-3);background:var(--line-2);padding:1px 6px;border-radius:3px}
.topbar-nav{display:flex;gap:4px;margin-left:12px}
.tb-link{
  font-size:12.5px;color:var(--text-2);padding:5px 11px;border-radius:var(--radius-sm);
  transition:.15s;
}
.tb-link:hover{background:var(--brand-light);color:var(--brand)}
.topbar-user{margin-left:auto;display:flex;align-items:center;gap:14px}
.tb-stats{display:flex;gap:14px;font-size:12px;color:var(--text-3)}
.tb-stats b{color:var(--text);font-family:var(--mono);font-weight:600}
.tb-admin{
  font-size:12.5px;color:var(--text);font-weight:500;padding:4px 10px;
  background:var(--line-2);border-radius:var(--radius-sm);
}
.tb-logout{
  font-size:12.5px;color:var(--text-2);padding:5px 12px;border:1px solid var(--line);
  border-radius:var(--radius-sm);transition:.15s;
}
.tb-logout:hover{background:var(--err-light);border-color:var(--err);color:var(--err)}

/* ============ 侧栏 ============ */
.sidebar{
  position:fixed;top:var(--topbar-h);left:0;bottom:0;width:var(--sidebar-w);
  background:#fff;border-right:1px solid var(--line);overflow-y:auto;z-index:90;
  display:flex;flex-direction:column;
}
.menu{flex:1;padding:8px 0}
.menu-group{margin-bottom:2px}
.menu-title{
  display:flex;align-items:center;gap:7px;padding:9px 16px;font-size:11.5px;
  color:var(--text-3);font-weight:600;letter-spacing:.6px;text-transform:uppercase;
}
.menu-title .ico{color:var(--text-4)}
.menu-list{list-style:none}
.menu-list a{
  display:flex;align-items:center;gap:9px;padding:8px 16px 8px 22px;font-size:13px;
  color:var(--text-2);border-left:3px solid transparent;transition:.14s;position:relative;
}
.menu-list a:hover{background:var(--line-2);color:var(--text)}
.menu-list a.active{
  background:var(--brand-light);color:var(--brand);font-weight:500;
  border-left-color:var(--brand);
}
.ml-dot{width:4px;height:4px;border-radius:50%;background:var(--text-4);flex-shrink:0}
.menu-list a.active .ml-dot{background:var(--brand)}
.menu-foot{padding:10px 16px;border-top:1px solid var(--line-2)}
.menu-foot-row{display:flex;justify-content:space-between;font-size:11px;color:var(--text-4)}
.menu-foot-row b{font-family:var(--mono);color:var(--text-3)}

/* ============ 主区域 ============ */
.main{margin-left:var(--sidebar-w);padding:14px 18px 30px;margin-top:var(--topbar-h);min-height:calc(100vh - var(--topbar-h))}
.crumbs{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--text-3);margin-bottom:12px}
.crumbs a{color:var(--text-3)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:var(--text-4)}
.crumbs .cur{color:var(--text);font-weight:500}
.page-body{background:transparent}

/* ============ 卡片 ============ */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);margin-bottom:14px;
}
.card-head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 16px;border-bottom:1px solid var(--line-2);
}
.card-head h3{font-size:14px;font-weight:600;color:var(--text);display:flex;align-items:center;gap:7px}
.card-head h3 .ico{color:var(--brand)}
.card-head .hd-extra{display:flex;gap:8px;align-items:center}
.card-body{padding:16px}
.card-body.tight{padding:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:5px;
  height:30px;padding:0 13px;font-size:12.5px;font-family:var(--font);
  border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;
  color:var(--text-2);cursor:pointer;transition:.15s;white-space:nowrap;user-select:none;
}
.btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-light)}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff}
.btn-ok{background:var(--ok);border-color:var(--ok);color:#fff}
.btn-ok:hover{background:#008f60;border-color:#008f60;color:#fff}
.btn-danger{background:var(--err);border-color:var(--err);color:#fff}
.btn-danger:hover{background:#c9302f;border-color:#c9302f;color:#fff}
.btn-warn{background:var(--warn);border-color:var(--warn);color:#fff}
.btn-warn:hover{background:#e08600;border-color:#e08600;color:#fff}
.btn-ghost{border-color:transparent;background:transparent;color:var(--text-3);padding:0 8px}
.btn-ghost:hover{background:var(--line-2);color:var(--text)}
.btn-sm{height:25px;padding:0 9px;font-size:12px}
.btn-lg{height:36px;padding:0 20px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;pointer-events:none}
.btn-group{display:inline-flex}
.btn-group .btn{border-radius:0;margin-left:-1px}
.btn-group .btn:first-child{border-radius:var(--radius-sm) 0 0 var(--radius-sm);margin-left:0}
.btn-group .btn:last-child{border-radius:0 var(--radius-sm) var(--radius-sm) 0}

/* ============ 表单 ============ */
.form-row{margin-bottom:14px}
.form-row:last-child{margin-bottom:0}
.form-label{
  display:block;font-size:12.5px;color:var(--text-2);margin-bottom:6px;font-weight:500;
}
.form-label .req{color:var(--err);margin-left:2px}
.form-label .tip{font-weight:400;color:var(--text-3);font-size:11.5px;margin-left:6px}
.input,.select,.textarea{
  width:100%;height:32px;padding:0 10px;font-size:13px;font-family:var(--font);
  color:var(--text);background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  transition:.15s;outline:none;
}
.textarea{height:auto;min-height:76px;padding:8px 10px;line-height:1.65;resize:vertical}
.input:hover,.select:hover,.textarea:hover{border-color:#c4c8ce}
.input:focus,.select:focus,.textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(45,108,223,.09)}
.input::placeholder,.textarea::placeholder{color:var(--text-4)}
.input[readonly]{background:var(--line-2);color:var(--text-2);cursor:not-allowed}
.select{appearance:none;padding-right:28px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238f959e' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 9px center;
}
.input-sm{height:28px;font-size:12.5px;padding:0 8px}
.input-lg{height:38px;font-size:14px}
.form-inline{display:flex;gap:8px;align-items:center}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:0 16px}
.w-120{width:120px}.w-150{width:150px}.w-180{width:180px}.w-220{width:220px}.w-280{width:280px}
.w-full{width:100%}

/* 复选/单选 */
.check{display:inline-flex;align-items:center;gap:6px;cursor:pointer;user-select:none;font-size:13px}
.check input{
  width:15px;height:15px;accent-color:var(--brand);cursor:pointer;margin:0;
}

/* 筛选条 */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:12px 16px;
  background:#fafbfc;border-bottom:1px solid var(--line-2);
}
.filter-bar .fb-item{display:flex;align-items:center;gap:6px}
.filter-bar .fb-label{font-size:12px;color:var(--text-3);white-space:nowrap}
.filter-bar .input,.filter-bar .select{width:auto;min-width:110px}
.filter-actions{margin-left:auto;display:flex;gap:8px}

/* ============ 表格 ============ */
.table-wrap{overflow-x:auto}
.table{width:100%;border-collapse:collapse;font-size:12.5px}
.table th{
  padding:10px 12px;text-align:left;font-weight:600;color:var(--text-2);white-space:nowrap;
  background:#fafbfc;border-bottom:1px solid var(--line);font-size:12px;
}
.table td{padding:9px 12px;border-bottom:1px solid var(--line-2);color:var(--text-2);vertical-align:middle}
.table tbody tr:hover{background:#f8faff}
.table tbody tr:last-child td{border-bottom:none}
.table .td-center{text-align:center}
.table .td-right{text-align:right}
.table .td-actions{white-space:nowrap}
.table .td-actions a,.table .td-actions button{
  font-size:12px;color:var(--brand);margin-right:8px;cursor:pointer;background:none;
  border:none;padding:0;font-family:var(--font);
}
.table .td-actions a:hover{text-decoration:underline}
.table .td-actions .del,.table .td-actions .del:hover{color:var(--err)}
.table .td-actions .ok,.table .td-actions .ok:hover{color:var(--ok)}
.table .td-actions .warn,.table .td-actions .warn:hover{color:var(--warn)}
.table code,.mono{font-family:var(--mono);font-size:12px}
.table .cell-clip{max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.empty{padding:52px 20px;text-align:center;color:var(--text-3)}
.empty .ico{color:var(--text-4);margin-bottom:10px}
.empty p{font-size:13px}
.table-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 16px;border-top:1px solid var(--line-2);background:#fafbfc;flex-wrap:wrap;
}

/* 批量操作条 */
.batch-bar{
  display:flex;align-items:center;gap:10px;padding:9px 16px;background:var(--brand-light);
  border-bottom:1px solid #d6e4ff;font-size:12.5px;color:var(--brand);
}
.batch-bar b{font-family:var(--mono)}

/* 表格工具栏（常驻，位于筛选栏与表格之间） */
.table-toolbar{
  display:flex;align-items:center;gap:12px;padding:9px 16px;
  background:#fafbfc;border-bottom:1px solid var(--line-2);flex-wrap:wrap;
}
.table-toolbar .tt-label{
  font-size:12.5px;color:var(--text-2);display:inline-flex;align-items:center;gap:7px;
}
.table-toolbar .tt-count{
  font-family:var(--mono);color:var(--brand);font-weight:600;
  min-width:18px;display:inline-block;
}
.table-toolbar .tt-sep{width:1px;height:16px;background:var(--line)}
.table-toolbar .tt-right{margin-left:auto;display:flex;align-items:center;gap:8px;flex-wrap:wrap}

/* ============ 标签 ============ */
.tag{
  display:inline-flex;align-items:center;gap:3px;height:20px;padding:0 7px;font-size:11.5px;
  border-radius:3px;background:var(--line-2);color:var(--text-2);white-space:nowrap;
}.tag-ok{background:var(--ok-light);color:var(--ok)}
.tag-err{background:var(--err-light);color:var(--err)}
.tag-warn{background:var(--warn-light);color:#b87400}
.tag-brand{background:var(--brand-light);color:var(--brand)}
.tag-dot::before{content:'';width:5px;height:5px;border-radius:50%;background:currentColor}

/* ============ 分页 ============ */
.pager-wrap{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  flex-wrap:wrap;width:100%;
}
.pager-left{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.pager-right{display:flex;align-items:center;margin-left:auto}
.pager{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.pager-info{font-size:12px;color:var(--text-3);margin-right:8px}
.pager-links{display:flex;gap:3px}
.pager a,.pager span{
  min-width:28px;height:28px;padding:0 8px;display:inline-flex;align-items:center;
  justify-content:center;font-size:12.5px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:#fff;color:var(--text-2);transition:.14s;
}
.pager a:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-light)}
.pager .current{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.pager .disabled{background:var(--line-2);color:var(--text-4);border-color:var(--line);pointer-events:none}
.pager .dots{border:none;background:transparent;min-width:20px;color:var(--text-4)}
.pager-total{font-size:12.5px;color:var(--text-3)}
.pager-size{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--text-3);
}
.pager-size .select{height:28px;padding:0 24px 0 9px;font-size:12.5px;min-width:82px}

/* ============ 确认摘要（弹窗内） ============ */
.confirm-summary{
  border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;
}
.confirm-summary .cs-title{
  padding:9px 14px;background:#f7f9fc;border-bottom:1px solid var(--line-2);
  font-size:13px;font-weight:600;color:var(--text-2);
}
.cs-table{width:100%;border-collapse:collapse;font-size:13px}
.cs-table th{
  text-align:left;padding:9px 14px;width:110px;background:#fafbfc;color:var(--text-3);
  font-weight:500;border-bottom:1px solid var(--line-2);white-space:nowrap;
}
.cs-table td{
  padding:9px 14px;color:var(--text);border-bottom:1px solid var(--line-2);
  word-break:break-all;font-weight:500;
}
.cs-table tr:last-child th,.cs-table tr:last-child td{border-bottom:none}
.cs-warn{
  padding:9px 14px;background:var(--warn-light);color:#9a6300;font-size:12.5px;
  border-top:1px solid #ffe0a8;line-height:1.6;
}

/* ============ Flash ============ */
.flash-wrap:empty{display:none}
.flash{
  display:flex;align-items:center;gap:9px;padding:11px 14px;margin-bottom:14px;
  border-radius:var(--radius);border:1px solid;font-size:13px;
}
.flash span{flex:1}
.flash-close{background:none;border:none;font-size:19px;line-height:1;color:var(--text-3);cursor:pointer;padding:0 3px}
.flash-success{background:var(--ok-light);border-color:#b8e6d3;color:#00754f}
.flash-error{background:var(--err-light);border-color:#f6c3c4;color:#c22}
.flash-warning{background:var(--warn-light);border-color:#ffe0a8;color:#9a6300}
.flash-info{background:var(--brand-light);border-color:#c5dbff;color:#1a4aa8}

/* ============ 统计卡 ============ */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(158px,1fr));gap:12px;margin-bottom:14px}
.stat-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:15px 16px;box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.stat-card::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand)}
.stat-card.g-ok::before{background:var(--ok)}
.stat-card.g-warn::before{background:var(--warn)}
.stat-card.g-err::before{background:var(--err)}
.stat-label{font-size:12px;color:var(--text-3);display:flex;align-items:center;gap:5px}
.stat-value{font-size:23px;font-weight:600;color:var(--text);margin-top:5px;font-family:var(--mono);line-height:1.2}
.stat-sub{font-size:11.5px;color:var(--text-4);margin-top:3px}

/* ============ 弹层 ============ */
.modal-mask{
  position:fixed;inset:0;background:rgba(15,22,35,.42);z-index:1000;
  display:flex;align-items:flex-start;justify-content:center;padding:8vh 16px 16px;
  overflow-y:auto;backdrop-filter:blur(1.5px);
}
.modal{
  background:#fff;border-radius:10px;box-shadow:var(--shadow-lg);max-width:94vw;width:640px;
  animation:modalIn .18s ease-out;
}
@keyframes modalIn{from{opacity:0;transform:translateY(-14px)}to{opacity:1;transform:none}}
.modal-head{
  display:flex;align-items:center;justify-content:space-between;padding:14px 18px;
  border-bottom:1px solid var(--line-2);font-size:15px;font-weight:600;
}
.modal-x{background:none;border:none;font-size:22px;line-height:1;color:var(--text-3);cursor:pointer}
.modal-x:hover{color:var(--err)}
.modal-body{padding:18px;max-height:66vh;overflow-y:auto}
.modal-foot{
  display:flex;justify-content:flex-end;gap:8px;padding:13px 18px;
  border-top:1px solid var(--line-2);background:#fafbfc;border-radius:0 0 10px 10px;
}
.confirm-msg{display:flex;align-items:flex-start;gap:11px;font-size:13.5px;color:var(--text);line-height:1.7}
.confirm-msg .ico{color:var(--warn);flex-shrink:0;margin-top:2px}

/* ============ Toast ============ */
.toast{
  position:fixed;top:66px;left:50%;transform:translateX(-50%);z-index:2000;
  display:flex;align-items:center;gap:8px;padding:10px 17px;border-radius:var(--radius);
  background:#fff;box-shadow:var(--shadow-lg);font-size:13px;
  border:1px solid var(--line);animation:toastIn .2s ease-out;
}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,-12px)}to{opacity:1;transform:translate(-50%,0)}}
.toast.fade{opacity:0;transition:opacity .3s}
.toast-success{color:var(--ok);border-color:#b8e6d3}
.toast-error{color:var(--err);border-color:#f6c3c4}
.toast-info{color:var(--brand);border-color:#c5dbff}

/* ============ 图片上传 ============ */
.upload-box{
  border:1.5px dashed var(--line);border-radius:var(--radius);padding:14px;text-align:center;
  background:#fafbfc;transition:.15s;cursor:pointer;
}
.upload-box:hover{border-color:var(--brand);background:var(--brand-light)}
.upload-box .ico{color:var(--text-4);display:block;margin:0 auto 5px}
.upload-box .ub-txt{font-size:12.5px;color:var(--text-2)}
.upload-box .ub-tip{font-size:11.5px;color:var(--text-4);margin-top:3px}
.upload-preview{margin-top:9px;display:flex;flex-wrap:wrap;gap:8px}
.upload-preview .up-item{
  position:relative;width:76px;height:76px;border:1px solid var(--line);
  border-radius:var(--radius-sm);overflow:hidden;background:#fff;
}
.upload-preview .up-item img{width:100%;height:100%;object-fit:cover;display:block}
.upload-preview .up-del{
  position:absolute;top:2px;right:2px;width:17px;height:17px;border-radius:50%;
  background:rgba(0,0,0,.55);color:#fff;font-size:12px;line-height:17px;text-align:center;
  cursor:pointer;border:none;
}
.upload-preview .up-del:hover{background:var(--err)}

/* 单图预览 */
.img-preview{display:flex;align-items:center;gap:11px}
.img-preview img{
  width:88px;height:88px;object-fit:cover;border:1px solid var(--line);
  border-radius:var(--radius-sm);background:#fafbfc;
}
.img-preview .ip-del{font-size:12px}

/* ============ 代理树 ============ */
.tree{font-size:13px;line-height:2.1;padding:8px}
.tree-node{padding-left:22px;position:relative}
.tree-root{padding-left:0;font-weight:600;color:var(--text)}
.tree-toggle{
  display:inline-block;width:16px;text-align:center;cursor:pointer;color:var(--text-3);
  user-select:none;transition:transform .15s;
}
.tree-toggle.open{transform:rotate(90deg)}
.tree-label{
  display:inline-flex;align-items:center;gap:7px;padding:3px 9px;border-radius:var(--radius-sm);
  background:#f7f9fc;border:1px solid var(--line-2);margin:2px 0;
}
.tree-label:hover{background:var(--brand-light);border-color:#c5dbff}
.tree-children{display:none}
.tree-children.show{display:block}

/* ============ 登录页 ============ */
.login-page{
  min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;
  background:linear-gradient(135deg,#1b3a6b 0%,#2d6cdf 55%,#4b8bf0 100%);
  position:relative;overflow:hidden;
}
.login-page::before,.login-page::after{
  content:'';position:absolute;border-radius:50%;background:rgba(255,255,255,.06);
}
.login-page::before{width:520px;height:520px;top:-160px;right:-120px}
.login-page::after{width:380px;height:380px;bottom:-130px;left:-90px}
.login-card{
  position:relative;z-index:2;width:100%;max-width:388px;background:#fff;
  border-radius:12px;box-shadow:0 20px 60px rgba(10,25,60,.28);padding:34px 30px 26px;
}
.login-head{text-align:center;margin-bottom:24px}
.login-logo{
  width:50px;height:50px;margin:0 auto 12px;border-radius:12px;background:var(--brand);
  display:flex;align-items:center;justify-content:center;color:#fff;
}
.login-head h1{font-size:19px;font-weight:600;color:var(--text);letter-spacing:.5px}
.login-head p{font-size:12px;color:var(--text-3);margin-top:5px}
.login-field{margin-bottom:14px;position:relative}
.login-field .lf-icon{
  position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--text-4);
  pointer-events:none;
}
.login-field input{
  width:100%;height:42px;padding:0 12px 0 36px;font-size:13.5px;font-family:var(--font);
  border:1px solid var(--line);border-radius:var(--radius-sm);outline:none;transition:.15s;
  background:#fafbfc;
}
.login-field input:focus{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(45,108,223,.09)}
.login-submit{
  width:100%;height:42px;border:none;border-radius:var(--radius-sm);background:var(--brand);
  color:#fff;font-size:14.5px;font-weight:500;cursor:pointer;font-family:var(--font);
  transition:.15s;letter-spacing:1px;
}
.login-submit:hover{background:var(--brand-dark)}
.login-submit:disabled{opacity:.6;cursor:not-allowed}
.login-error{
  padding:9px 12px;background:var(--err-light);border:1px solid #f6c3c4;color:#c22;
  border-radius:var(--radius-sm);font-size:12.5px;margin-bottom:14px;display:flex;gap:7px;align-items:flex-start;
}
.login-foot{margin-top:18px;text-align:center;font-size:11.5px;color:var(--text-4);line-height:1.9}
.login-foot a{color:var(--text-3)}

/* ============ 移动端适配 ============ */
@media (max-width:900px){
  :root{--sidebar-w:0px}
  .sidebar{
    transform:translateX(-100%);transition:transform .24s;width:214px;box-shadow:var(--shadow-lg);
  }
  .sidebar.show{transform:none}
  .topbar-brand{width:auto}
  .brand-name,.brand-ver,.topbar-nav,.tb-stats{display:none}
  .main{margin-left:0;padding:12px}
  .mobile-toggle{display:flex!important}
  .filter-bar{gap:6px}
  .filter-actions{width:100%;margin-left:0}
  .table{font-size:12px}
  .table th,.table td{padding:8px}
}
.mobile-toggle{
  display:none;align-items:center;justify-content:center;width:32px;height:32px;margin-right:9px;
  border:none;background:var(--line-2);border-radius:var(--radius-sm);cursor:pointer;color:var(--text-2);
}

/* ============ 工具类 ============ */
.mt-0{margin-top:0}.mt-8{margin-top:8px}.mt-12{margin-top:12px}.mt-16{margin-top:16px}
.mb-0{margin-bottom:0}.mb-8{margin-bottom:8px}.mb-12{margin-bottom:12px}.mb-16{margin-bottom:16px}
.text-2{color:var(--text-2)}.text-3{color:var(--text-3)}.text-ok{color:var(--ok)}
.text-err{color:var(--err)}.text-warn{color:var(--warn)}.text-brand{color:var(--brand)}
.text-right{text-align:right}.text-center{text-align:center}.nowrap{white-space:nowrap}
.fs-11{font-size:11.5px}.fs-12{font-size:12px}.fs-13{font-size:13px}.fs-16{font-size:16px}
.fw-6{font-weight:600}.gap-4{gap:4px}.gap-8{gap:8px}.flex{display:flex}.flex-1{flex:1}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:0 16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:0 16px}
@media (max-width:700px){.grid-2,.grid-3{grid-template-columns:1fr}}
.help-box{
  padding:10px 13px;background:#f7f9fc;border:1px solid var(--line-2);border-radius:var(--radius-sm);
  font-size:12px;color:var(--text-2);line-height:1.85;margin-bottom:14px;
}
.help-box ol,.help-box ul{margin-left:18px}
.help-box b{color:var(--text)}
.divider{height:1px;background:var(--line-2);margin:16px 0}
.kv{display:grid;grid-template-columns:88px 1fr;gap:7px 12px;font-size:13px}
.kv dt{color:var(--text-3)}
.kv dd{color:var(--text)}