[hidden] { display: none !important; }
:root {
  --bg: #0f1419;
  --bg-2: #161c24;
  --bg-3: #1d2630;
  --panel: #1a222c;
  --panel-2: #212c38;
  --border: #2a3543;
  --text: #e6edf3;
  --text-dim: #9fb0c0;
  --text-mute: #6b7c8c;
  --primary: #2f9e6e;
  --primary-2: #38b487;
  --accent: #4aa3ff;
  --danger: #e5564b;
  --warn: #e0a93b;
  --ok: #3ec97a;
  --shadow: 0 6px 24px rgba(0,0,0,.35);
  --radius: 10px;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px; line-height: 1.5;
}
#app { display: flex; flex-direction: column; height: 100vh; }

/* 顶栏 */
.topbar {
  height: 54px; flex: 0 0 54px; display: flex; align-items: center; gap: 12px;
  padding: 0 14px; background: var(--bg-2); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 30;
}
.hamburger { display: none; background: none; border: none; color: var(--text); font-size: 22px; cursor: pointer; }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 600; }
.brand .logo { font-size: 20px; }
.brand .title { font-size: 16px; letter-spacing: .5px; }
.brand .domain {
  background: var(--primary); color: #fff; font-size: 11px; padding: 2px 8px;
  border-radius: 20px; font-weight: 700; letter-spacing: 1px;
}
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.remind-badge { background: var(--bg-3); padding: 4px 10px; border-radius: 20px; color: var(--warn); font-size: 13px; }
.remind-badge b { color: #fff; }
.operator { font-size: 12px; color: var(--text-dim); display: flex; align-items: center; gap: 6px; }
.operator input {
  background: var(--bg-3); border: 1px solid var(--border); color: var(--text);
  border-radius: 6px; padding: 6px 8px; width: 110px; font-size: 13px;
}

/* 布局 */
.layout { flex: 1; display: flex; min-height: 0; }
.sidebar {
  width: 210px; flex: 0 0 210px; background: var(--bg-2); border-right: 1px solid var(--border);
  padding: 10px 0; overflow-y: auto; display: flex; flex-direction: column;
}
.nav-item {
  display: flex; align-items: center; gap: 10px; padding: 11px 18px; color: var(--text-dim);
  cursor: pointer; border-left: 3px solid transparent; user-select: none; font-size: 14px; position: relative;
}
.nav-item span:first-child { font-size: 16px; }
.nav-item:hover { background: var(--bg-3); color: var(--text); }
.nav-item.active { background: var(--panel); color: #fff; border-left-color: var(--primary); }
.nav-badge {
  margin-left: auto; background: var(--danger); color: #fff; font-size: 11px;
  min-width: 18px; height: 18px; border-radius: 9px; display: inline-flex; align-items: center; justify-content: center; padding: 0 5px;
}
.sidebar-foot { margin-top: auto; padding: 14px 18px; font-size: 11px; color: var(--text-mute); border-top: 1px solid var(--border); }
.backdrop { display: none; }

.content { flex: 1; overflow-y: auto; padding: 18px; min-width: 0; }
.view { animation: fade .2s ease; }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

/* 通用组件 */
h2.page-title { font-size: 18px; margin: 0 0 14px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
h2.page-title .sub { font-size: 12px; color: var(--text-mute); font-weight: 400; }
.btn {
  background: var(--panel-2); color: var(--text); border: 1px solid var(--border); border-radius: 8px;
  padding: 8px 14px; cursor: pointer; font-size: 13px; transition: .15s; display: inline-flex; align-items: center; gap: 6px;
}
.btn:hover { border-color: var(--primary); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-2); }
.btn.danger { background: transparent; border-color: var(--danger); color: var(--danger); }
.btn.sm { padding: 5px 10px; font-size: 12px; }
.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.toolbar .spacer { flex: 1; }
input, select, textarea {
  background: var(--bg-3); border: 1px solid var(--border); color: var(--text);
  border-radius: 7px; padding: 8px 10px; font-size: 13px; font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); }
label.field { display: flex; flex-direction: column; gap: 5px; font-size: 12px; color: var(--text-dim); }
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; margin-bottom: 16px;
}
.grid-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
.stat-card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.stat-card .k { color: var(--text-mute); font-size: 12px; }
.stat-card .v { font-size: 26px; font-weight: 700; margin-top: 6px; }
.stat-card .v small { font-size: 13px; color: var(--text-dim); font-weight: 400; }

/* 表格 */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--panel); }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { border: 1px solid var(--border); padding: 7px 9px; text-align: center; white-space: nowrap; }
thead th { background: var(--bg-3); position: sticky; top: 0; z-index: 2; font-weight: 600; }
tbody tr:nth-child(even) { background: rgba(255,255,255,.02); }
tbody tr:hover { background: var(--panel-2); }
td.left, th.left { text-align: left; }
.col-group { background: var(--bg-2) !important; }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.tag { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 11px; background: var(--bg-3); color: var(--text-dim); }
.tag.ok { background: rgba(62,201,122,.15); color: var(--ok); }
.tag.warn { background: rgba(224,169,59,.15); color: var(--warn); }
.tag.danger { background: rgba(229,86,75,.15); color: var(--danger); }
.empty { text-align: center; color: var(--text-mute); padding: 40px; }

/* 统计表专用配色（对齐 Excel 分区） */
.section-basic { background: rgba(74,163,255,.06); }
.section-read { background: rgba(56,180,135,.06); }
.section-stat { background: rgba(224,169,59,.06); }
.section-plan { background: rgba(229,86,75,.06); }
.section-avg { background: rgba(160,120,220,.06); }

/* 抄录页 */
.reading-filter { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; }
.meter-pick {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px;
  display: flex; flex-direction: column; gap: 8px; cursor: pointer; transition: .15s;
}
.meter-pick:hover { border-color: var(--accent); }
.meter-pick.selected { border-color: var(--primary); background: var(--panel-2); }
.meter-pick .code { font-weight: 700; color: var(--primary-2); }
.meter-pick .meta { font-size: 12px; color: var(--text-dim); }
.reading-row { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 10px; align-items: end; padding: 10px 0; border-bottom: 1px dashed var(--border); }
.reading-row .label { font-size: 12px; color: var(--text-dim); }

/* 模态 */
.modal-mask { position: fixed; inset: 0; background: rgba(0,0,0,.55); z-index: 100; display: flex; align-items: center; justify-content: center; padding: 16px; }
.modal { background: var(--bg-2); border: 1px solid var(--border); border-radius: 12px; width: 100%; max-width: 640px; max-height: 90vh; display: flex; flex-direction: column; box-shadow: var(--shadow); }
.modal-head { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--border); font-weight: 600; }
.modal-head button { background: none; border: none; color: var(--text-dim); font-size: 18px; cursor: pointer; }
.modal-body { padding: 18px; overflow-y: auto; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-grid .full { grid-column: 1 / -1; }

/* Toast */
.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: var(--panel-2); border: 1px solid var(--primary); color: var(--text); padding: 10px 18px; border-radius: 24px; z-index: 200; box-shadow: var(--shadow); }
.toast.err { border-color: var(--danger); }

/* 报警列表 */
.alarm-item { background: var(--panel); border: 1px solid var(--border); border-left: 4px solid var(--danger); border-radius: var(--radius); padding: 12px 14px; margin-bottom: 10px; }
.alarm-item .hd { display: flex; justify-content: space-between; gap: 10px; }
.alarm-item .vals { font-size: 12px; color: var(--text-dim); margin-top: 6px; }

/* 设置页 */
.set-tabs { display: flex; gap: 6px; margin-bottom: 14px; flex-wrap: wrap; }
.set-tab { padding: 7px 14px; border-radius: 20px; background: var(--bg-3); cursor: pointer; font-size: 13px; border: 1px solid transparent; }
.set-tab.active { background: var(--primary); color: #fff; }

/* 响应式 */
@media (max-width: 860px) {
  .hamburger { display: block; }
  .sidebar {
    position: fixed; top: 54px; bottom: 0; left: 0; z-index: 40; transform: translateX(-100%);
    transition: transform .25s; width: 220px; box-shadow: var(--shadow);
  }
  .sidebar.open { transform: translateX(0); }
  .backdrop.show { display: block; position: fixed; inset: 54px 0 0 0; background: rgba(0,0,0,.4); z-index: 35; }
  .brand .title { font-size: 14px; }
  .content { padding: 12px; }
  .form-grid { grid-template-columns: 1fr; }
  .reading-row { grid-template-columns: 1fr 1fr; }
  .operator input { width: 84px; }
  .topbar-right { gap: 8px; }
}
@media (max-width: 480px) {
  .brand .title { display: none; }
  .remind-badge { font-size: 12px; padding: 3px 8px; }
}

/* ---------------- 浅色主题（默认） ---------------- */
[data-theme="light"] {
  --bg: #f4f6f8;
  --bg-2: #ffffff;
  --bg-3: #eef1f4;
  --panel: #ffffff;
  --panel-2: #f0f3f6;
  --border: #d8dee6;
  --text: #1f2a36;
  --text-dim: #5b6b7b;
  --text-mute: #93a1b0;
  --primary: #1f9d6b;
  --primary-2: #2bb98a;
  --accent: #2f7fe0;
  --danger: #d83a2f;
  --warn: #c98a12;
  --ok: #1f9d6b;
  --shadow: 0 6px 24px rgba(0,0,0,.12);
  --radius: 10px;
}

/* ---------------- 登录页 ---------------- */
.login-view { position: fixed; inset: 0; z-index: 300; display: flex; align-items: center; justify-content: center; background: var(--bg); }
.login-card { width: 320px; max-width: 90vw; background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 28px 24px; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 12px; }
.login-logo { font-size: 20px; font-weight: 700; text-align: center; }
.login-domain { text-align: center; color: #fff; background: var(--primary); border-radius: 20px; padding: 2px 10px; font-size: 12px; width: fit-content; margin: -2px auto 6px; letter-spacing: 1px; }
.login-card input { padding: 10px 12px; font-size: 14px; }
.login-btn { justify-content: center; padding: 11px; font-size: 15px; }
.login-msg { color: var(--danger); font-size: 13px; min-height: 16px; text-align: center; }
.login-tip { color: var(--text-mute); font-size: 12px; text-align: center; }

/* ---------------- 顶栏用户/主题 ---------------- */
.icon-btn { background: none; border: 1px solid var(--border); color: var(--text); width: 34px; height: 34px; border-radius: 8px; cursor: pointer; font-size: 16px; display: inline-flex; align-items: center; justify-content: center; }
.icon-btn:hover { border-color: var(--primary); }
.uname { font-size: 13px; color: var(--text-dim); }
.stat-line { color: var(--text-dim); font-size: 13px; margin-bottom: 10px; }