/* ================= 设计系统 ================= */
:root {
  --bg: #060911;
  --bg-2: #0a1020;
  --card: rgba(18, 26, 44, .72);
  --card-solid: #101a2e;
  --line: rgba(124, 160, 255, .14);
  --line-strong: rgba(124, 160, 255, .26);
  --tx: #e8eefb;
  --tx-dim: #93a5c6;
  --tx-mute: #64748b;
  --ok: #3ddc84;
  --warn: #ffbe50;
  --bad: #ff6374;
  --brand-1: #5b8cff;
  --brand-2: #8b5cf6;
  --brand-3: #22d3ee;
  --radius: 18px;
  --shadow: 0 24px 60px rgba(3, 8, 20, .55);
  --mono: ui-monospace, "SF Mono", Consolas, "Cascadia Code", monospace;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--tx);
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(91, 140, 255, .20), transparent 62%),
    radial-gradient(900px 520px at 92% 4%, rgba(139, 92, 246, .18), transparent 60%),
    radial-gradient(800px 500px at 60% 105%, rgba(34, 211, 238, .10), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  padding: 22px 20px 72px;
}

a { color: var(--brand-1); text-decoration: none; }
a:hover { color: #8fb6ff; }

.wrap { max-width: 1280px; margin: 0 auto; }

/* ================= 顶栏 ================= */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between;
  padding: 12px 18px; margin-bottom: 24px;
  border: 1px solid var(--line); border-radius: 16px;
  background: rgba(10, 16, 30, .82);
  backdrop-filter: blur(14px) saturate(140%);
  box-shadow: 0 12px 34px rgba(2, 6, 16, .45);
}

.brand { display: flex; align-items: center; gap: 12px; }
.mark {
  width: 38px; height: 38px; border-radius: 12px; flex: 0 0 auto;
  background: linear-gradient(135deg, var(--brand-1), var(--brand-2) 58%, var(--brand-3));
  display: grid; place-items: center; font-size: 18px;
  box-shadow: 0 8px 22px rgba(91, 140, 255, .35), inset 0 0 0 1px rgba(255, 255, 255, .18);
}
.brand h1 { margin: 0; font-size: 17px; font-weight: 650; letter-spacing: .2px; }
.brand .sub { font-size: 11.5px; color: var(--tx-mute); margin-top: 3px; letter-spacing: .3px; }

.pills { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.pill {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 12px; color: #c4d4f2; padding: 7px 12px; border-radius: 999px;
  background: rgba(124, 160, 255, .08); border: 1px solid var(--line);
}
.pill.link { cursor: pointer; transition: .18s; }
.pill.link:hover { background: rgba(124, 160, 255, .16); border-color: var(--line-strong); color: #dbe6ff; }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 10px rgba(61, 220, 132, .8); }
.dot.off { background: var(--bad); box-shadow: 0 0 10px rgba(255, 99, 116, .8); }
.dot.warn { background: var(--warn); box-shadow: 0 0 10px rgba(255, 190, 80, .8); }

/* ================= 卡片 ================= */
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 22px; box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}
.card + .card { margin-top: 18px; }
.card h2 { margin: 0 0 4px; font-size: 15px; font-weight: 650; }
.card .hint { font-size: 12px; color: var(--tx-mute); line-height: 1.7; margin: 6px 0 0; }

.banner {
  display: flex; gap: 12px; align-items: center; justify-content: space-between; flex-wrap: wrap;
  padding: 14px 18px; border-radius: 14px; margin-bottom: 18px; font-size: 13px;
  border: 1px solid rgba(255, 190, 80, .28); background: rgba(255, 190, 80, .08); color: #ffd9a1;
}
.banner.ok { border-color: rgba(61, 220, 132, .28); background: rgba(61, 220, 132, .08); color: #a9f3c8; }
.banner.bad { border-color: rgba(255, 99, 116, .28); background: rgba(255, 99, 116, .08); color: #ffb9c1; }
.banner a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }

/* ================= 表单 ================= */
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field > label { font-size: 11.5px; color: var(--tx-dim); letter-spacing: .4px; }

.input, input[type=text], input[type=password], input[type=number] {
  padding: 11px 13px; border-radius: 11px; font-size: 13.5px; color: var(--tx);
  background: rgba(8, 13, 24, .85); border: 1px solid #22304d; outline: none;
  transition: border-color .16s, box-shadow .16s;
  font-family: inherit;
}
.input:focus, input:focus {
  border-color: var(--brand-1);
  box-shadow: 0 0 0 3px rgba(91, 140, 255, .16);
}
input[type=number] { width: 96px; }
input::placeholder { color: #4d5c78; }

.btn {
  display: inline-flex; align-items: center; gap: 6px; justify-content: center;
  padding: 10px 16px; border-radius: 11px; border: 1px solid transparent;
  font-size: 13px; font-weight: 600; cursor: pointer; font-family: inherit;
  transition: transform .12s, filter .16s, background .16s, border-color .16s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn.primary {
  background: linear-gradient(135deg, var(--brand-1), var(--brand-2));
  color: #fff; box-shadow: 0 10px 26px rgba(91, 140, 255, .30);
}
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { background: rgba(124, 160, 255, .10); border-color: var(--line); color: #c8d8f7; }
.btn.ghost:hover { background: rgba(124, 160, 255, .18); border-color: var(--line-strong); }
.btn.danger { background: rgba(255, 99, 116, .12); border-color: rgba(255, 99, 116, .30); color: #ffb3bd; }
.btn.danger:hover { background: rgba(255, 99, 116, .2); }
.btn.warn { background: rgba(255, 190, 80, .12); border-color: rgba(255, 190, 80, .3); color: #ffd08a; }
.btn.tiny { padding: 7px 11px; font-size: 11.5px; border-radius: 9px; }

/* ================= 设备卡 ================= */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(392px, 1fr)); gap: 18px; }

.dev {
  position: relative; overflow: hidden;
  background: linear-gradient(160deg, rgba(24, 34, 58, .82), rgba(14, 20, 36, .9));
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 20px 16px; box-shadow: var(--shadow);
  transition: transform .18s, border-color .18s;
}
.dev:hover { transform: translateY(-2px); border-color: var(--line-strong); }
.dev::after {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 2px;
  background: linear-gradient(90deg, var(--brand-1), var(--brand-2), var(--brand-3));
  opacity: .85;
}
.dev.off { opacity: .72; }
.dev.off::after { background: linear-gradient(90deg, #ff6374, #b91c1c); }

.dev-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.dev-name { font-size: 16.5px; font-weight: 650; letter-spacing: .2px; display: flex; align-items: center; gap: 8px; }
.dev-meta { font-size: 11.5px; color: var(--tx-mute); margin-top: 5px; }
.tag {
  font-size: 10.5px; font-weight: 700; padding: 3px 8px; border-radius: 7px; letter-spacing: .3px;
}
.tag.on { background: rgba(61, 220, 132, .14); color: #8df0b6; border: 1px solid rgba(61, 220, 132, .25); }
.tag.off { background: rgba(255, 99, 116, .14); color: #ffb3bd; border: 1px solid rgba(255, 99, 116, .25); }

.ring { width: 62px; height: 62px; flex: 0 0 auto; position: relative; display: grid; place-items: center; }
.ring > svg { position: absolute; inset: 0; transform: rotate(-90deg); }
.ring .val { font-size: 11px; font-weight: 700; color: #d6e3ff; letter-spacing: .2px; }
.ring .cap { font-size: 8.5px; color: var(--tx-mute); }

.statline { display: flex; gap: 8px; margin: 14px 0 4px; flex-wrap: wrap; }
.stat {
  flex: 1; min-width: 96px; padding: 9px 11px; border-radius: 11px;
  background: rgba(8, 13, 24, .6); border: 1px solid #1c2740;
}
.stat .k { font-size: 10px; color: var(--tx-mute); letter-spacing: .6px; }
.stat .v { font-size: 13.5px; font-weight: 650; margin-top: 3px; font-family: var(--mono); }
.stat .v.up { color: #7fd1ff; }
.stat .v.down { color: #9ff0b9; }

.bar { height: 6px; border-radius: 99px; background: rgba(8, 13, 24, .8); overflow: hidden; margin-top: 8px; border: 1px solid #1c2740; }
.bar > i { display: block; height: 100%; border-radius: 99px;
  background: linear-gradient(90deg, var(--ok), var(--brand-3)); transition: width .5s ease; }
.bar > i.hi { background: linear-gradient(90deg, var(--warn), var(--bad)); }

.kv { font-size: 10.5px; color: var(--tx-mute); letter-spacing: .8px; text-transform: uppercase; margin: 16px 0 6px; }

.copyline {
  display: flex; gap: 8px; align-items: center;
  background: rgba(8, 13, 24, .8); border: 1px solid #1c2740; border-radius: 11px; padding: 9px 11px;
}
.copyline code {
  flex: 1; min-width: 0; font-size: 11.5px; color: #9fb6da; font-family: var(--mono);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.copyline .btn { flex: 0 0 auto; }

.actions { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; }
.actions form { margin: 0; }

details.adv { margin-top: 14px; border-top: 1px dashed rgba(124, 160, 255, .16); padding-top: 12px; }
details.adv > summary {
  cursor: pointer; font-size: 12px; color: var(--tx-dim); list-style: none;
  display: flex; align-items: center; gap: 6px; user-select: none;
}
details.adv > summary::-webkit-details-marker { display: none; }
details.adv > summary::before { content: "▸"; transition: transform .2s; display: inline-block; }
details.adv[open] > summary::before { transform: rotate(90deg); }
details.adv > summary:hover { color: #cfe0ff; }
.adv-body { margin-top: 12px; display: flex; flex-direction: column; gap: 14px; }

/* ================= 登录 ================= */
.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.auth {
  width: 100%; max-width: 386px; padding: 34px 30px 30px; border-radius: 22px;
  background: linear-gradient(165deg, rgba(24, 34, 58, .92), rgba(12, 18, 32, .96));
  border: 1px solid var(--line-strong); box-shadow: 0 30px 80px rgba(2, 6, 16, .7);
  position: relative; overflow: hidden;
}
.auth::before {
  content: ""; position: absolute; width: 220px; height: 220px; right: -70px; top: -90px;
  background: radial-gradient(circle, rgba(139, 92, 246, .5), transparent 65%);
  filter: blur(6px); pointer-events: none;
}
.auth .mark { width: 44px; height: 44px; border-radius: 14px; font-size: 21px; margin-bottom: 18px; }
.auth h1 { margin: 0 0 6px; font-size: 19px; letter-spacing: .2px; }
.auth p.sub { margin: 0 0 24px; font-size: 12px; color: var(--tx-mute); }
.auth .btn { width: 100%; margin-top: 16px; padding: 12px; }
.auth .err { margin-top: 14px; font-size: 12px; color: #ff9aa5; }

/* ================= 其他 ================= */
.toast {
  position: fixed; left: 50%; bottom: 30px; transform: translate(-50%, 14px);
  background: rgba(20, 30, 52, .96); border: 1px solid var(--line-strong);
  color: #d6e3ff; padding: 11px 20px; border-radius: 12px; font-size: 13px;
  opacity: 0; transition: .22s; z-index: 99; backdrop-filter: blur(10px);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

footer.foot { text-align: center; font-size: 11.5px; color: #4b5b78; margin-top: 30px; line-height: 1.9; }

.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.mono { font-family: var(--mono); font-size: 12.5px; color: #9fb6da; }
.muted { color: var(--tx-mute); }
.sr { font-size: 12px; color: var(--tx-dim); line-height: 1.8; }

@media (max-width: 560px) {
  body { padding: 14px 12px 60px; }
  .grid { grid-template-columns: 1fr; }
  .topbar { position: static; }
}