:root {
  --bg:#f5f6f8; --card:#fff; --line:#e6e8ec; --ink:#1f2329; --sub:#8a8f99;
  --accent:#3b6ef5; --danger:#e5484d; --ok:#2f9e44; --soft:#eef3ff;
}
html { -webkit-text-size-adjust:100%; }
* { box-sizing:border-box; margin:0; padding:0; }
body { font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
       background:var(--bg); color:var(--ink); font-size:14px; line-height:1.5; overflow-x:hidden; }
a { color:var(--accent); text-decoration:none; }

/* 顶部冻结头 */
.topbar { position:sticky; top:0; z-index:50; background:var(--card); border-bottom:1px solid var(--line);
          display:flex; align-items:center; gap:16px; padding:0 24px; box-shadow:0 1px 4px rgba(0,0,0,.04); }
.brand { display:flex; align-items:center; gap:8px; font-size:18px; font-weight:700; letter-spacing:.5px;
         color:var(--ink); padding:11px 0; white-space:nowrap; flex-shrink:0; }
.tabs { display:flex; gap:2px; }
.tab { padding:14px 16px; cursor:pointer; font-size:14px; color:var(--sub); border-bottom:2px solid transparent;
       user-select:none; white-space:nowrap; }
.tab:hover { color:var(--ink); }
.tab.on { color:var(--accent); border-bottom-color:var(--accent); font-weight:600; }
.topbar .me { margin-left:auto; color:var(--ink); font-size:13px; white-space:nowrap; display:flex; align-items:center; gap:12px; flex-shrink:0; }
.topbar .me .uname { font-weight:600; }
.topbar .me .logout { color:var(--sub); cursor:pointer; font-size:12px; }
.topbar .me .logout:hover { color:var(--danger); }

.wrap { max-width:1100px; margin:0 auto; padding:22px 24px 60px; }
.pane { display:none; } .pane.on { display:block; }
.h2 { font-size:16px; font-weight:600; margin:0 0 14px; }
.muted { color:var(--sub); }

/* 卡片 */
.card { background:var(--card); border:1px solid var(--line); border-radius:10px; padding:16px; margin-bottom:14px; }

/* 路由卡片 */
.route-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(220px,1fr)); gap:14px; }
.route-card { background:var(--card); border:1px solid var(--line); border-radius:12px; padding:18px;
              cursor:pointer; transition:.15s; display:flex; flex-direction:column; gap:8px; }
.route-card:hover { border-color:var(--accent); box-shadow:0 6px 20px rgba(59,110,245,.12); transform:translateY(-2px); }
.route-card .rn { font-size:16px; font-weight:600; }
.route-card .rk { color:var(--sub); font-size:12px; font-variant-numeric:tabular-nums; }

/* 机器选择弹出菜单（多机器路由卡片点击时） */
.machine-menu { position:fixed; z-index:120; background:var(--card); border:1px solid var(--line);
                border-radius:8px; box-shadow:0 8px 24px rgba(0,0,0,.14); padding:4px; min-width:110px; }
.machine-item { padding:6px 12px; border-radius:6px; font-size:13px; cursor:pointer; white-space:nowrap; }
.machine-item:hover { background:var(--soft); color:var(--accent); }

/* 表格 */
table { width:100%; border-collapse:collapse; background:var(--card); border:1px solid var(--line);
        border-radius:10px; overflow:hidden; }
th, td { padding:9px 11px; text-align:left; border-bottom:1px solid var(--line); white-space:nowrap; }
th { background:#fafbfc; font-size:12px; color:var(--sub); }
tr:last-child td { border-bottom:none; }
td.num { text-align:right; font-variant-numeric:tabular-nums; }

/* 按钮/输入 */
.btn { padding:7px 14px; border:1px solid var(--line); border-radius:7px; background:#fff; cursor:pointer; font-size:13px; }
.btn:hover { border-color:var(--accent); color:var(--accent); }
.btn.primary { background:var(--accent); color:#fff; border-color:var(--accent); }
.btn.primary:hover { opacity:.9; color:#fff; }
.btn.danger { color:var(--danger); border-color:#f3c0c2; }
.btn.danger:hover { background:#fdeced; }
.btn.sm { padding:4px 10px; font-size:12px; }
input[type=text], input[type=password], input[type=number], select {
  padding:8px 10px; border:1px solid var(--line); border-radius:7px; font-size:14px; background:#fff; width:100%; }
.row { display:flex; gap:10px; align-items:flex-end; flex-wrap:wrap; }
.fg { display:flex; flex-direction:column; gap:5px; }
.fg label { font-size:12px; color:var(--sub); }
.form-err { color:var(--danger); font-size:12px; min-height:16px; margin:6px 0; }
.form-ok { color:var(--ok); font-size:12px; min-height:16px; margin:6px 0; }

/* 药丸（可见路由勾选） */
.pills { display:flex; flex-wrap:wrap; gap:6px; }
.pill { padding:3px 10px; border-radius:12px; font-size:12px; border:1px solid var(--line); background:#fff;
        color:var(--ink); cursor:pointer; user-select:none; white-space:nowrap; }
.pill.on { background:var(--accent); color:#fff; border-color:var(--accent); }

/* 分页 */
.pager { display:flex; align-items:center; gap:12px; margin:12px 2px; }
.pager .pinfo { color:var(--sub); font-size:13px; }
.pager button[disabled] { opacity:.45; cursor:default; }

.badge-admin { display:inline-block; padding:1px 7px; border-radius:9px; background:var(--soft); color:var(--accent); font-size:11px; }

/* 表格横向滚动容器 */
.table-scroll { width:100%; overflow-x:auto; -webkit-overflow-scrolling:touch; margin-bottom:14px; }
.table-scroll table { margin-bottom:0; }

/* 登录页 */
.login-bg { min-height:100vh; display:flex; align-items:center; justify-content:center; background:var(--bg); }
.login-box { background:var(--card); border:1px solid var(--line); border-radius:14px; padding:32px 30px;
             width:340px; box-shadow:0 12px 44px rgba(0,0,0,.08); }
.login-box .title { font-size:20px; font-weight:700; margin-bottom:4px; display:flex; align-items:center; gap:10px; }
.login-box .sub { color:var(--sub); font-size:13px; margin-bottom:22px; }
.login-box .fg { margin-bottom:14px; }
.login-box .btn { width:100%; justify-content:center; padding:10px; }

/* 错误页 */
.errpage { min-height:70vh; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:10px; text-align:center; }
.errpage .code { font-size:54px; font-weight:800; color:var(--accent); }
.errpage .msg { color:var(--sub); }

/* 机器监控：图标 + 弹层 + 图表 */
.metrics-btn { cursor:pointer; font-size:16px; line-height:1; user-select:none; }
.metrics-btn:hover { filter:brightness(1.1); transform:scale(1.1); }
.modal-mask { display:none; position:fixed; inset:0; background:rgba(0,0,0,.4); z-index:100;
              align-items:flex-start; justify-content:center; padding:48px 16px; overflow:auto; }
.modal-mask.on { display:flex; }
.modal-box { background:var(--card); border-radius:14px; width:100%; max-width:680px;
             box-shadow:0 20px 60px rgba(0,0,0,.25); }
.modal-head { display:flex; align-items:center; gap:12px; padding:14px 18px; border-bottom:1px solid var(--line); }
.modal-title { font-size:16px; font-weight:600; }
.modal-head select { width:auto; margin-left:auto; }
.modal-close { cursor:pointer; color:var(--sub); font-size:16px; padding:0 4px; }
.modal-close:hover { color:var(--danger); }
.modal-body { padding:16px 18px 22px; display:flex; flex-direction:column; gap:20px; }
.metric-chart .mc-title { font-size:13px; font-weight:600; margin-bottom:6px; font-variant-numeric:tabular-nums; }
.metric-chart canvas { width:100%; height:150px; display:block; cursor:crosshair; }

/* ── 响应式断点 ── */
@media (max-width:820px) {
  .route-grid { grid-template-columns:repeat(2, minmax(0,1fr)); }
}

@media (max-width:640px) {
  .topbar { flex-wrap:wrap; padding:0 14px; gap:0; }
  .tabs { order:1; width:100%; overflow-x:auto; -webkit-overflow-scrolling:touch;
          border-top:1px solid var(--line); scrollbar-width:none; gap:0; }
  .tabs::-webkit-scrollbar { display:none; }
  .tab { padding:10px 12px; font-size:13px; }
  .topbar .me { margin-left:auto; }
  .brand { padding:10px 0; }
}

@media (max-width:560px) {
  .wrap { padding:16px 14px 56px; }
  .card { padding:14px; }
  .route-card { padding:14px 16px; }
  .route-grid { grid-template-columns:1fr; }
  .login-box { width:calc(100% - 32px); padding:24px 20px; }
  .pager { flex-wrap:wrap; justify-content:center; }
}