:root {
  --ink: #18202c;
  --muted: #657085;
  --line: #d9dee8;
  --panel: #ffffff;
  --canvas: #f4f6fa;
  --nav: #141a24;
  --gold: #f4c542;
  --gold-2: #8a6a0a;
  --green: #17803d;
  --red: #c33b3b;
  --gray: #6b7280;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background: var(--canvas);
}

.shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 248px 1fr;
}

.sidebar {
  background: var(--nav);
  color: #f8fafc;
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--gold);
  color: #151515;
  font-weight: 900;
  font-size: 22px;
}

.brand strong { display: block; font-size: 17px; letter-spacing: 0; }
.brand span { display: block; margin-top: 4px; color: #a7b0c0; font-size: 13px; }

nav { display: grid; gap: 6px; margin-top: 8px; }
nav a {
  color: #d9dee8;
  text-decoration: none;
  padding: 11px 12px;
  border-radius: 8px;
  font-size: 14px;
}
nav a:hover, nav a:focus { background: #202838; outline: none; }

.sidebar-foot {
  margin-top: auto;
  padding: 12px;
  border: 1px solid #2b3446;
  border-radius: 8px;
}
.sidebar-foot span { display: block; color: #8f9aac; font-size: 12px; }
.sidebar-foot strong { display: block; margin-top: 4px; font-size: 13px; overflow-wrap: anywhere; }

.main { padding: 24px; min-width: 0; }
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}
.topbar h1 { margin: 0; font-size: 24px; }
.topbar p { margin: 6px 0 0; color: var(--muted); font-size: 14px; }
.ghost-link { color: var(--muted); text-decoration: none; }

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}
.metric, .panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}
.metric { padding: 16px; }
.metric span, .metric em { display: block; color: var(--muted); font-size: 13px; font-style: normal; }
.metric strong { display: block; margin: 8px 0; font-size: 28px; }

.panel { margin-top: 16px; padding: 16px; }
.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.panel h2 { margin: 0; font-size: 18px; }
.panel p { margin: 5px 0 0; color: var(--muted); font-size: 13px; }

.inline-form, .mini-form {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 9px 10px;
  font: inherit;
  background: #fff;
}
.inline-form input { width: 150px; }
.mini-form input { width: 112px; padding: 7px 8px; font-size: 13px; }
button {
  border: 0;
  border-radius: 7px;
  padding: 9px 12px;
  font: inherit;
  font-weight: 700;
  background: var(--gold);
  color: #16120a;
  cursor: pointer;
}
button:hover, button:focus { background: #e8b934; outline: 2px solid rgba(244, 197, 66, .35); }
.link-btn { background: #eef1f6; color: var(--ink); }

.table-wrap { overflow: auto; border: 1px solid var(--line); border-radius: 8px; }
table { width: 100%; border-collapse: collapse; min-width: 920px; }
th, td { padding: 11px 12px; border-bottom: 1px solid var(--line); text-align: left; font-size: 13px; vertical-align: middle; }
th { background: #f8fafc; color: #4b5565; font-weight: 700; }
tr:last-child td { border-bottom: 0; }
.num { font-variant-numeric: tabular-nums; font-weight: 700; }
.empty { text-align: center; color: var(--muted); padding: 28px; }

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 3px 8px;
  border-radius: 7px;
  font-size: 12px;
  font-weight: 700;
}
.badge-green { color: var(--green); background: #e8f7ee; }
.badge-red { color: var(--red); background: #fdeaea; }
.badge-gray { color: var(--gray); background: #eef1f6; }

.config-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.config-form label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }
.config-form label:nth-child(n+4) { grid-column: 1 / -1; }
.config-form button { justify-self: start; }

.login-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background:
    linear-gradient(135deg, rgba(20, 26, 36, .95), rgba(37, 46, 62, .92)),
    radial-gradient(circle at 70% 20%, rgba(244, 197, 66, .25), transparent 35%);
}
.login-panel {
  width: min(420px, calc(100vw - 32px));
  padding: 28px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 22px 70px rgba(0, 0, 0, .28);
}
.login-brand { font-size: 22px; font-weight: 900; }
.login-brand span { margin-left: 6px; color: var(--gold-2); font-weight: 700; }
.login-panel h1 { margin: 18px 0 6px; }
.login-panel p { margin: 0 0 18px; color: var(--muted); }
.stack-form { display: grid; gap: 12px; }
.stack-form label { display: grid; gap: 6px; color: var(--muted); font-size: 13px; }
.error-box {
  margin-bottom: 12px;
  padding: 10px 12px;
  border-radius: 7px;
  color: var(--red);
  background: #fdeaea;
}

@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; }
  .metric-grid, .config-form { grid-template-columns: 1fr; }
}