:root {
  --bg: #0b0d11;
  --panel: #171a20;
  --panel-2: #20242b;
  --ink: #eef2f5;
  --muted: #9aa2af;
  --line: #2a2f38;
  --teal: #119c9b;
  --teal-2: #24c8c2;
  --red: #ef4444;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Microsoft YaHei", Arial, sans-serif;
  background:
    radial-gradient(circle at 50% 0%, rgba(36, 200, 194, 0.14), transparent 34%),
    var(--bg);
  color: var(--ink);
}

a {
  color: inherit;
  text-decoration: none;
}

.hub-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 46px;
}

.hub-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 18px;
  margin-bottom: 18px;
}

.hub-header p,
.hub-header h1 {
  margin: 0;
}

.hub-header p {
  color: var(--muted);
  margin-bottom: 8px;
}

.hub-header h1 {
  font-size: 38px;
  line-height: 1.1;
}

.api-card,
.panel,
.launch-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(23, 26, 32, 0.94);
}

.api-card {
  min-width: 240px;
  padding: 14px;
}

.api-card span,
.api-card small,
.launch-card span,
.launch-card small,
.panel-title span,
.steps span,
.panel p {
  color: var(--muted);
}

.api-card strong {
  display: block;
  font-size: 24px;
  margin: 6px 0;
}

.api-card.connected strong {
  color: #dffefa;
}

.api-card.offline strong {
  color: #fecaca;
}

.launch-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 14px;
}

.launch-card {
  min-height: 190px;
  padding: 18px;
  transition: transform 160ms ease, border-color 160ms ease;
}

.launch-card:hover {
  transform: translateY(-2px);
  border-color: rgba(36, 200, 194, 0.58);
}

.launch-card.primary {
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.18), rgba(0, 0, 0, 0.72)),
    url("./assets/images/opera_stage.svg") center/cover;
}

.launch-card span,
.launch-card strong,
.launch-card small {
  display: block;
}

.launch-card span {
  color: var(--teal-2);
  font-weight: 900;
}

.launch-card strong {
  font-size: 25px;
  margin: 10px 0;
}

.launch-card small {
  line-height: 1.45;
}

.guide-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 14px;
}

.panel {
  padding: 16px;
}

.panel:first-child {
  grid-row: span 2;
}

.panel-title {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
  margin-bottom: 12px;
}

.panel-title strong {
  font-size: 22px;
}

.steps {
  display: grid;
  gap: 12px;
  padding-left: 22px;
  margin: 0;
}

.steps li {
  padding-left: 4px;
}

.steps strong,
.steps span {
  display: block;
}

.steps strong {
  font-size: 18px;
}

.steps span {
  line-height: 1.45;
  margin-top: 4px;
}

pre {
  margin: 0;
  overflow: auto;
  border-radius: 8px;
  background: #0f1116;
  color: #d8dee9;
  padding: 12px;
  line-height: 1.45;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.tag-list span {
  border-radius: 999px;
  background: rgba(17, 156, 155, 0.18);
  color: #dffefa;
  padding: 8px 10px;
  font-weight: 800;
}

@media (max-width: 980px) {
  .hub-header,
  .guide-grid {
    grid-template-columns: 1fr;
    display: grid;
  }

  .launch-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .panel:first-child {
    grid-row: auto;
  }
}

@media (max-width: 620px) {
  .launch-grid {
    grid-template-columns: 1fr;
  }

  .hub-header h1 {
    font-size: 30px;
  }
}