:root{
  --bg:#f4f6fa; --card:#fff; --line:#e4e9f2; --text:#1f2937; --muted:#6b7280;
  --blue:#2563eb; --blue-d:#1d4ed8; --blue-l:#eff6ff;
  --green:#15803d; --green-bg:#f0fdf4; --red:#b91c1c; --red-bg:#fef2f2;
  --amber:#b45309; --amber-bg:#fffbeb;
}
*{box-sizing:border-box}
body{
  margin:0; background:var(--bg); color:var(--text); font-size:14px; line-height:1.65;
  font-family:"微软雅黑","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}

/* ---------- 顶栏 ---------- */
.topbar{
  background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;
  box-shadow:0 1px 3px rgba(15,23,42,.04);
}
.topbar .inner{max-width:1180px;margin:0 auto;padding:0 22px;height:58px;display:flex;align-items:center;gap:14px}
.brand{font-size:17px;font-weight:700;letter-spacing:.5px;display:flex;align-items:center;gap:9px}
.brand .logo{
  width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,#2563eb,#60a5fa);
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px
}
.topbar .spacer{flex:1}
.topbar .who{color:var(--muted);font-size:13px;display:flex;align-items:center;gap:8px}
.avatar{
  width:26px;height:26px;border-radius:50%;background:#dbeafe;color:var(--blue-d);
  display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:12.5px
}
.pill{
  font-size:11.5px;padding:1px 8px;border-radius:20px;background:#eef2ff;color:#3730a3;font-weight:700
}
.navlink{
  color:#475569;font-size:13.5px;padding:6px 12px;border-radius:8px;font-weight:600
}
.navlink:hover{background:#f1f5f9;text-decoration:none}
.navlink.active{background:var(--blue-l);color:var(--blue-d)}

/* ---------- 布局 ---------- */
.wrap{max-width:1180px;margin:0 auto;padding:26px 22px 70px}
h1{font-size:22px;margin:0 0 6px}
h2{font-size:15px;margin:26px 0 12px;display:flex;align-items:center;gap:8px}
h2 .dot{width:7px;height:7px;border-radius:50%;background:var(--blue)}
.sub{color:var(--muted);font-size:13px;margin-bottom:20px}

/* ---------- 卡片 ---------- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(268px,1fr));gap:16px}
.tool{
  background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 18px 16px;
  display:flex;flex-direction:column;gap:10px;transition:.16s;position:relative
}
.tool:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(15,23,42,.09);border-color:#c7d8f5}
.tool .ic{font-size:26px;line-height:1}
.tool .nm{font-size:16px;font-weight:700}
.tool .ds{color:var(--muted);font-size:12.8px;min-height:36px}
.tool .go{
  align-self:flex-start;background:var(--blue);color:#fff;padding:7px 18px;border-radius:9px;
  font-size:13px;font-weight:600
}
.tool .go:hover{background:var(--blue-d);text-decoration:none}
.tool.off{opacity:.62}
.tool .badge{position:absolute;top:14px;right:14px;font-size:11.5px;padding:1px 8px;border-radius:20px;
  background:#f1f5f9;color:#64748b;font-weight:700}

/* ---------- 表格 ---------- */
.panel{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin-bottom:18px}
table{width:100%;border-collapse:collapse;font-size:13.5px}
th,td{padding:9px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
th{background:#f8fafc;font-weight:700;color:#475569;font-size:12.8px;white-space:nowrap}
tbody tr:hover{background:#fafcff}
td.ops{white-space:nowrap;text-align:right}
.tbl-wrap{overflow-x:auto}

/* ---------- 按钮 / 表单 ---------- */
.btn{
  display:inline-block;border:0;border-radius:9px;padding:8px 16px;font-size:13px;font-weight:600;
  cursor:pointer;font-family:inherit;background:var(--blue);color:#fff
}
.btn:hover{background:var(--blue-d);text-decoration:none;color:#fff}
.btn.ghost{background:#fff;color:var(--blue);border:1px solid #c7d8f5}
.btn.ghost:hover{background:var(--blue-l);color:var(--blue-d)}
.btn.sm{padding:5px 11px;font-size:12.3px;border-radius:7px}
.btn.danger{background:#fff;color:var(--red);border:1px solid #fecaca}
.btn.danger:hover{background:var(--red-bg);color:var(--red)}
.btn.muted{background:#fff;color:#475569;border:1px solid var(--line)}
.btn.muted:hover{background:#f1f5f9;color:#334155}
.inline{display:inline}
input[type=text],input[type=password],input[type=number],select{
  font-family:inherit;font-size:13.5px;padding:8px 11px;border:1px solid #cbd5e1;border-radius:9px;
  background:#fff;color:var(--text);outline:none;width:100%
}
input:focus,select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,99,235,.13)}
label{display:block;font-size:12.8px;color:#475569;font-weight:600;margin:0 0 5px}
.field{margin-bottom:14px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}

/* ---------- 提示条 ---------- */
.flash{border-radius:11px;padding:11px 15px;margin-bottom:14px;font-size:13.5px;font-weight:600;border:1px solid}
.flash.ok{background:var(--green-bg);border-color:#bbf7d0;color:var(--green)}
.flash.error{background:var(--red-bg);border-color:#fecaca;color:var(--red)}
.flash.info{background:var(--blue-l);border-color:#c7d8f5;color:var(--blue-d)}

.tag{font-size:11.8px;padding:2px 9px;border-radius:20px;font-weight:700;display:inline-block}
.tag.on{background:#dcfce7;color:var(--green)}
.tag.off{background:#f1f5f9;color:#64748b}
.tag.admin{background:#eef2ff;color:#3730a3}
.tag.user{background:#f1f5f9;color:#475569}

/* ---------- 登录页 ---------- */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:30px}
.login-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:34px 34px 28px;width:100%;max-width:390px;
  box-shadow:0 18px 44px rgba(15,23,42,.09)}
.login-card .head{text-align:center;margin-bottom:22px}
.login-card .head .logo{
  width:50px;height:50px;border-radius:15px;margin:0 auto 12px;font-size:24px;
  background:linear-gradient(135deg,#2563eb,#60a5fa);color:#fff;display:flex;align-items:center;justify-content:center}
.login-card h1{font-size:19px;margin:0 0 4px}
.login-card .sub{margin:0;font-size:12.5px}

.empty{color:var(--muted);font-size:13px;text-align:center;padding:28px}
details summary{cursor:pointer;color:var(--blue);font-size:13px;font-weight:600;margin-top:6px}