:root {
  --bg: #050810;
  --bg-elevated: #0a1018;
  --panel: rgba(12, 20, 32, 0.82);
  --panel-hover: rgba(18, 28, 44, 0.9);
  --text: #e8f4ff;
  --muted: #6b8aa8;
  --border: rgba(0, 212, 255, 0.22);
  --border-soft: rgba(0, 212, 255, 0.1);
  --green: #00ff9d;
  --red: #ff4d6d;
  --accent: #00d4ff;
  --accent-2: #7b61ff;
  --accent-dim: rgba(0, 212, 255, 0.12);
  --glow: 0 0 24px rgba(0, 212, 255, 0.15);
  --radius: 10px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
  --font: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --display: "Orbitron", var(--font);
  --mono: var(--font);
  --layout-max: 1520px;
}

* {
  box-sizing: border-box;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
  text-shadow: 0 0 12px rgba(0, 212, 255, 0.4);
}

.app-bg,
.login-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px),
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(0, 212, 255, 0.12), transparent),
    radial-gradient(ellipse 60% 40% at 100% 100%, rgba(123, 97, 255, 0.08), transparent);
  background-size: 48px 48px, 48px 48px, auto, auto;
}

.app-bg::after,
.login-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
  opacity: 0.4;
}

.app-shell {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--layout-max);
  margin-left: auto;
  margin-right: auto;
  padding: 0 24px 48px;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border-soft);
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent), 0 0 24px rgba(0, 212, 255, 0.5);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.7;
    transform: scale(0.92);
  }
}

.brand-title {
  font-family: var(--display);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text);
}

.brand-sub {
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.14em;
  margin-top: 2px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.sys-pill {
  font-size: 10px;
  letter-spacing: 0.12em;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--accent);
  background: var(--accent-dim);
  font-family: var(--display);
}

.sys-pill.warn {
  color: var(--red);
  border-color: rgba(255, 77, 109, 0.4);
  background: rgba(255, 77, 109, 0.1);
}

.top-nav {
  display: flex;
  gap: 4px;
  background: rgba(0, 0, 0, 0.35);
  padding: 4px;
  border-radius: var(--radius);
  border: 1px solid var(--border-soft);
  backdrop-filter: blur(8px);
}

.top-nav a {
  padding: 8px 16px;
  border-radius: 7px;
  text-decoration: none;
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: background 0.15s, color 0.15s, box-shadow 0.15s;
}

.top-nav a:hover {
  color: var(--text);
  background: var(--panel-hover);
  text-decoration: none;
}

.top-nav a.active {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(123, 97, 255, 0.15));
  color: var(--accent);
  border: 1px solid var(--border);
  box-shadow: var(--glow);
}

button.ghost {
  background: transparent;
  border: 1px solid var(--border-soft);
  color: var(--muted);
  font-size: 11px;
  padding: 7px 12px;
}

button.ghost:hover:not(:disabled) {
  color: var(--text);
  border-color: var(--border);
}

.page.hidden {
  display: none;
}

.page-head {
  margin: 24px 0 16px;
}

.page-head h1 {
  margin: 0 0 6px;
  font-family: var(--display);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.06em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.head-tag {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--accent-dim);
  border: 1px solid var(--border);
  color: var(--accent);
}

.page-desc {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
}

.hint-box {
  margin-bottom: 16px;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  background: var(--panel);
  backdrop-filter: blur(10px);
  overflow: hidden;
}

.hint-box summary {
  padding: 10px 14px;
  cursor: pointer;
  font-size: 12px;
  color: var(--muted);
  user-select: none;
  list-style: none;
}
.hint-box summary::-webkit-details-marker {
  display: none;
}
.hint-box summary::before {
  content: "▸ ";
  color: var(--accent);
}
.hint-box[open] summary::before {
  content: "▾ ";
}

.hint-box .hint-body {
  padding: 0 14px 12px;
  font-size: 11px;
  color: var(--muted);
  line-height: 1.65;
  border-top: 1px solid var(--border-soft);
}
.hint-box .hint-body code {
  font-family: var(--mono);
  font-size: 10px;
  background: rgba(0, 212, 255, 0.08);
  padding: 1px 5px;
  border-radius: 4px;
  color: var(--accent);
  border: 1px solid var(--border-soft);
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  padding: 12px 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  backdrop-filter: blur(10px);
  box-shadow: var(--glow);
}

.toolbar-spacer {
  flex: 1;
  min-width: 8px;
}

.toolbar-meta {
  font-size: 11px;
  color: var(--muted);
  font-family: var(--mono);
}

button,
.btn {
  background: rgba(0, 0, 0, 0.4);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 16px;
  cursor: pointer;
  font-size: 12px;
  font-family: var(--font);
  font-weight: 500;
  letter-spacing: 0.03em;
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
}

button:hover:not(:disabled) {
  border-color: var(--accent);
  background: var(--panel-hover);
  box-shadow: 0 0 16px rgba(0, 212, 255, 0.12);
}

button.primary {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.25), rgba(123, 97, 255, 0.2));
  border-color: var(--accent);
  color: #fff;
  text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

button.danger {
  border-color: rgba(255, 77, 109, 0.5);
  color: var(--red);
  background: rgba(255, 77, 109, 0.08);
}

button.danger:hover:not(:disabled) {
  background: rgba(255, 77, 109, 0.15);
  border-color: var(--red);
  box-shadow: 0 0 16px rgba(255, 77, 109, 0.2);
}

button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-link {
  background: transparent;
  border: 1px solid var(--border-soft);
  color: var(--accent);
  padding: 5px 10px;
  font-size: 11px;
  border-radius: 6px;
}
.btn-link:hover {
  background: var(--accent-dim);
  text-decoration: none;
  box-shadow: var(--glow);
}

.chk-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--muted);
  cursor: pointer;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  backdrop-filter: blur(12px);
  transition: border-color 0.2s, box-shadow 0.2s;
  position: relative;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.5;
}

.card.card-online {
  border-color: rgba(0, 255, 157, 0.35);
}
.card.card-online::before {
  background: linear-gradient(90deg, transparent, var(--green), transparent);
  opacity: 0.8;
}

.card.card-offline {
  border-color: rgba(255, 77, 109, 0.3);
}
.card.card-offline::before {
  background: linear-gradient(90deg, transparent, var(--red), transparent);
}

.card:hover {
  border-color: rgba(0, 212, 255, 0.45);
  box-shadow: var(--glow);
}

.card-head {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-soft);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.card-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.status-dot.ok {
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
}
.status-dot.bad {
  background: var(--red);
  box-shadow: 0 0 8px var(--red);
}

.card-title {
  font-family: var(--display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin: 0 0 4px;
}

.card-sub {
  font-size: 10px;
  color: var(--muted);
  font-family: var(--mono);
  word-break: break-all;
}

.card-actions {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-shrink: 0;
}

.card-body {
  padding: 14px 16px;
}

.grid-monitor {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.settings-grid-wrap {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

@media (max-width: 1200px) {
  .grid-monitor {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.stat-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 12px;
}

.stat-box {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  padding: 10px 12px;
}

.stat-label {
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.stat-value {
  font-size: 17px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

.section-title {
  font-size: 10px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin: 14px 0 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-soft);
}

.section-title:first-child {
  margin-top: 0;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
}

.data-table th {
  color: var(--muted);
  font-weight: 500;
  font-size: 10px;
  padding: 6px 8px;
  text-align: left;
  border-bottom: 1px solid var(--border-soft);
}

.data-table td {
  padding: 8px;
  border-bottom: 1px solid var(--border-soft);
  font-variant-numeric: tabular-nums;
}

.data-table tr:last-child td {
  border-bottom: none;
}

.list-line {
  font-size: 11px;
  color: var(--muted);
  padding: 6px 0;
  border-bottom: 1px dashed var(--border-soft);
  line-height: 1.45;
}
.list-line:last-child {
  border-bottom: none;
}

.empty-hint {
  font-size: 11px;
  color: var(--muted);
  padding: 8px 0;
}

.pnl-pos {
  color: var(--green);
  text-shadow: 0 0 12px rgba(0, 255, 157, 0.3);
}
.pnl-neg {
  color: var(--red);
}
.err {
  color: var(--red);
  font-size: 12px;
}

.badge {
  font-size: 9px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid var(--border);
  white-space: nowrap;
  letter-spacing: 0.06em;
}

.settings-meta-line {
  font-size: 11px;
  color: var(--muted);
  padding: 10px 14px;
  background: var(--panel);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-bottom: 16px;
  line-height: 1.55;
  border: 1px solid var(--border-soft);
  border-left-width: 3px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.field label,
.field > span {
  font-size: 10px;
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.field-wide {
  grid-column: 1 / -1;
}

.field input,
.field select,
.form-row input,
.form-row select {
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 11px;
  font-size: 12px;
  font-family: var(--mono);
  width: 100%;
}

.field input:focus,
.field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.2), var(--glow);
}

.field-check {
  flex-direction: row;
  align-items: center;
  gap: 8px;
  padding-top: 20px;
}

.field-check label {
  font-size: 12px;
  color: var(--text);
  cursor: pointer;
  text-transform: none;
}

.settings-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  backdrop-filter: blur(10px);
}

.settings-card-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.settings-card-head .ex-name {
  flex: 1;
  min-width: 160px;
  font-size: 14px;
  font-weight: 600;
  font-family: var(--display);
  background: transparent;
  border: none;
  border-bottom: 1px dashed var(--border);
  color: var(--text);
  padding: 4px 0;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.settings-grid .field input {
  font-size: 11px;
}

.cap-chips {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  padding: 8px 0;
}

.cap-chips label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text);
  cursor: pointer;
  padding: 6px 12px;
  background: rgba(0, 0, 0, 0.35);
  border-radius: 999px;
  border: 1px solid var(--border-soft);
}

.settings-card-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border-soft);
}

.settings-card-foot .field {
  max-width: 80px;
}

#toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  max-width: min(420px, 92vw);
  background: var(--panel);
  border: 1px solid var(--accent);
  padding: 12px 16px;
  border-radius: var(--radius);
  display: none;
  z-index: 50;
  white-space: pre-wrap;
  font-size: 12px;
  box-shadow: var(--glow);
  backdrop-filter: blur(12px);
}

#toast.show {
  display: block;
}

/* —— 登录页 —— */
body.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

.login-panel {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 400px;
  padding: 28px 26px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow), var(--glow);
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}

.login-title {
  font-family: var(--display);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.login-sub {
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.16em;
  margin-top: 4px;
}

.login-form .field {
  margin-bottom: 16px;
}

.login-submit {
  width: 100%;
  padding: 12px;
}

.login-err {
  color: var(--red);
  font-size: 12px;
  margin: 10px 0 0;
}

.login-foot {
  margin: 20px 0 0;
  font-size: 10px;
  color: var(--muted);
  line-height: 1.5;
}
.login-foot code {
  color: var(--accent);
  font-size: 10px;
}

@media (max-width: 720px) {
  .app-shell {
    padding: 0 12px 32px;
  }
  .grid-monitor,
  .settings-grid-wrap {
    grid-template-columns: 1fr;
  }
  .header-right {
    width: 100%;
    justify-content: space-between;
  }
}