/* ============================================================
   充电宝定位平台 · 控制台样式
   深空蓝底 + 电光青蓝主色；所有类名与旧版兼容，仅做视觉升级。
   ============================================================ */

:root {
  --bg: #0b101d;
  --bg-grad: radial-gradient(1200px 600px at 80% -10%, #14243f 0%, transparent 60%),
             radial-gradient(900px 500px at -10% 110%, #10202f 0%, transparent 55%);
  --card: #131b2e;
  --card-2: #182238;
  --border: #24304d;
  --border-soft: #1c2740;
  --txt: #e9eef8;
  --dim: #8da0c0;
  --faint: #5d6f92;
  --accent: #4f8cff;
  --accent-2: #38d0ff;
  --accent-grad: linear-gradient(135deg, #38d0ff 0%, #4f8cff 55%, #6a5cff 100%);
  --ok: #3ecf8e;
  --warn: #ffb14f;
  --err: #ff5c6c;
  --radius: 12px;
  --shadow: 0 6px 24px rgba(0, 0, 0, .35);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg);
  background-image: var(--bg-grad);
  background-attachment: fixed;
  color: var(--txt);
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(79, 140, 255, .35); }

a { color: var(--accent-2); text-decoration: none; transition: color .15s; }
a:hover { color: #7fdcff; }

/* ---------- 滚动条 ---------- */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #26314e; border-radius: 6px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: #33416a; }

/* ---------- 顶栏 ---------- */
header {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 22px;
  background: rgba(15, 21, 38, .82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-soft);
  flex-wrap: wrap; gap: 8px;
}

.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 16px; font-weight: 700; letter-spacing: .5px;
}

.brand .logo {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 9px;
  background: var(--accent-grad);
  box-shadow: 0 2px 10px rgba(56, 160, 255, .45);
  font-size: 16px;
}

nav { display: flex; gap: 4px; align-items: center; flex-wrap: wrap; }

nav a {
  color: var(--dim);
  padding: 6px 13px; border-radius: 8px; font-size: 13px; font-weight: 500;
  border: 1px solid transparent;
  transition: all .15s;
}
nav a:hover { color: var(--txt); background: rgba(79, 140, 255, .12); }
nav a.on {
  color: #fff;
  background: linear-gradient(135deg, rgba(56, 160, 255, .25), rgba(106, 92, 255, .25));
  border-color: rgba(79, 140, 255, .4);
}

nav .dim {
  margin-left: 8px; padding: 4px 10px;
  border: 1px solid var(--border-soft); border-radius: 999px;
  background: var(--card);
}

/* ---------- 主区 ---------- */
main { max-width: 1400px; margin: 0 auto; padding: 20px 16px 40px; }

/* ---------- 卡片 ---------- */
.card {
  background: linear-gradient(180deg, var(--card-2) 0%, var(--card) 100%);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

.card h2 {
  display: flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 600; color: var(--txt);
  margin-bottom: 14px; padding-bottom: 10px;
  border-bottom: 1px solid var(--border-soft);
}
.card h2::before {
  content: ""; display: inline-block;
  width: 3px; height: 14px; border-radius: 2px;
  background: var(--accent-grad);
}

/* ---------- 表格 ---------- */
table { width: 100%; border-collapse: collapse; font-size: 13px; }

th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--border-soft); }

th {
  color: var(--faint); font-weight: 600; font-size: 12px; letter-spacing: .5px;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}

tbody tr, tr { transition: background .12s; }
tr:hover td { background: rgba(79, 140, 255, .05); }

/* ---------- 表单 ---------- */
input, select, textarea {
  background: #0e1526;
  border: 1px solid var(--border);
  color: var(--txt);
  padding: 9px 12px; border-radius: 8px; font-size: 13px;
  font-family: inherit;
  transition: border-color .15s, box-shadow .15s;
}
input::placeholder { color: var(--faint); }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79, 140, 255, .18);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block;
  background: var(--accent-grad);
  border: none; color: #fff;
  padding: 9px 18px; border-radius: 8px;
  cursor: pointer; font-size: 13px; font-weight: 600; font-family: inherit;
  letter-spacing: .3px;
  box-shadow: 0 2px 10px rgba(79, 140, 255, .3);
  transition: transform .12s, box-shadow .15s, filter .15s;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(79, 140, 255, .45); filter: brightness(1.08); }
.btn:active { transform: translateY(0); }

.btn.ghost {
  background: transparent; border: 1px solid var(--border);
  color: var(--txt); box-shadow: none;
}
.btn.ghost:hover { border-color: var(--accent); color: var(--accent-2); box-shadow: none; }

.btn.danger {
  background: linear-gradient(135deg, #ff5c6c, #ff7a5c);
  box-shadow: 0 2px 10px rgba(255, 92, 108, .3);
}

.btn.small { padding: 5px 12px; font-size: 12px; border-radius: 6px; }

/* ---------- 闪现提示 ---------- */
.flash {
  display: flex; align-items: flex-start; gap: 8px;
  padding: 11px 14px; border-radius: 10px; font-size: 13px; margin-bottom: 12px;
  background: var(--card); border: 1px solid var(--border-soft);
}
.flash.ok   { border-left: 4px solid var(--ok); }
.flash.ok::before  { content: "✅"; }
.flash.err  { border-left: 4px solid var(--err); }
.flash.err::before { content: "⚠️"; }
.flash.info { border-left: 4px solid var(--accent); }
.flash.info::before { content: "ℹ️"; }

/* ---------- 状态点 ---------- */
.dot {
  display: inline-block; width: 9px; height: 9px; border-radius: 50%;
  margin-right: 6px; vertical-align: middle;
}
.dot.live { background: var(--ok); box-shadow: 0 0 0 0 rgba(62, 207, 142, .6); animation: pulse 2s infinite; }
.dot.idle { background: var(--warn); }
.dot.off  { background: #3a4663; }

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(62, 207, 142, .55); }
  70%  { box-shadow: 0 0 0 7px rgba(62, 207, 142, 0); }
  100% { box-shadow: 0 0 0 0 rgba(62, 207, 142, 0); }
}

/* ---------- 统计卡 ---------- */
.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }

.stat {
  position: relative;
  background: linear-gradient(180deg, var(--card-2) 0%, var(--card) 100%);
  border: 1px solid var(--border-soft); border-radius: var(--radius);
  padding: 16px 18px;
  transition: transform .15s, border-color .15s, box-shadow .15s;
  overflow: hidden;
}
.stat::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--accent-grad); opacity: .7;
}
.stat:hover { transform: translateY(-2px); border-color: var(--border); box-shadow: 0 8px 28px rgba(0, 0, 0, .4); }

.stat .num {
  font-size: 28px; font-weight: 800; line-height: 1.2;
  background: var(--accent-grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: var(--accent-2);
}
.stat .lbl { font-size: 12px; color: var(--dim); margin-top: 3px; letter-spacing: .5px; }

/* ---------- 其他 ---------- */
.dim { color: var(--dim); font-size: 12px; }
.mono { font-family: Consolas, "JetBrains Mono", monospace; }

#map { height: 420px; border-radius: 10px; background: #141a26; border: 1px solid var(--border-soft); }

code {
  background: #0a0f1c;
  border: 1px solid var(--border-soft);
  padding: 3px 10px; border-radius: 6px;
  font-size: 15px; letter-spacing: 2px;
  color: var(--accent-2);
  font-family: Consolas, monospace;
}

form.inline { display: inline; }

hr { border: none; border-top: 1px solid var(--border-soft); margin: 14px 0; }

/* ---------- 认证页（登录/注册） ---------- */
.card[style*="max-width"] { box-shadow: 0 12px 40px rgba(0, 0, 0, .45); }

.auth-brand {
  display: flex; align-items: center; justify-content: center;
  width: 52px; height: 52px; margin: 4px auto 12px;
  border-radius: 15px; font-size: 26px;
  background: var(--accent-grad);
  box-shadow: 0 4px 18px rgba(56, 160, 255, .5);
}

/* ---------- 页脚 ---------- */
footer {
  max-width: 1400px; margin: 0 auto; padding: 10px 16px 26px;
  color: var(--faint); font-size: 12px; text-align: center;
}

/* ---------- 移动端 ---------- */
@media (max-width: 720px) {
  header { padding: 10px 12px; }
  main { padding: 14px 10px 30px; }
  .card { padding: 14px; }
  table { display: block; overflow-x: auto; white-space: nowrap; }
  .grid { grid-template-columns: 1fr 1fr; }
  .stat .num { font-size: 22px; }
}

@media (max-width: 460px) {
  .grid { grid-template-columns: 1fr; }
}