:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-soft: #f9fafb;
  --ink: #182230;
  --muted: #667085;
  --line: #d0d7e2;
  --accent: #0b66c3;
  --accent-strong: #054a91;
  --green: #147a4b;
  --green-soft: #eaf8f0;
  --amber: #9a5b13;
  --amber-soft: #fff6e5;
  --red: #b42318;
  --red-soft: #fff1f0;
  --shadow: 0 10px 28px rgba(16, 24, 40, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
  line-height: 1.55;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-shell {
  min-height: 100vh;
}

.topbar {
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
}

.topbar-inner {
  align-items: center;
  display: flex;
  gap: 22px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1120px;
  padding: 13px 22px;
}

.brand {
  align-items: center;
  color: var(--ink);
  display: inline-flex;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0;
}

.brand-mark {
  align-items: center;
  background: #e7f1ff;
  border: 1px solid #bdd9ff;
  border-radius: 7px;
  color: var(--accent-strong);
  display: inline-flex;
  height: 32px;
  justify-content: center;
  width: 32px;
}

.brand-mark svg,
.nav-link svg,
.button svg,
.metric-icon svg {
  height: 18px;
  width: 18px;
}

.nav {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.nav-link,
.button {
  align-items: center;
  border-radius: 7px;
  display: inline-flex;
  gap: 7px;
  min-height: 36px;
  padding: 7px 10px;
  white-space: nowrap;
}

.nav-link {
  color: var(--muted);
  font-size: 14px;
}

.nav-link[aria-current="page"] {
  background: #eaf2ff;
  color: var(--accent-strong);
}

.button {
  background: var(--accent);
  border: 1px solid var(--accent);
  color: #fff;
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  justify-content: center;
}

.button.secondary {
  background: #fff;
  color: var(--accent);
}

.button:hover {
  text-decoration: none;
}

.container {
  margin: 0 auto;
  max-width: 1120px;
  padding: 28px 22px 56px;
}

.intro {
  display: grid;
  gap: 22px;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
  margin-bottom: 22px;
}

.intro-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 24px;
}

.eyebrow {
  color: var(--accent-strong);
  font-size: 13px;
  font-weight: 700;
  margin: 0 0 10px;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  letter-spacing: 0;
  line-height: 1.25;
}

h1 {
  font-size: 34px;
  margin: 0 0 12px;
}

h2 {
  font-size: 20px;
  margin: 0;
}

h3 {
  font-size: 16px;
  margin: 0 0 8px;
}

p {
  margin: 0;
}

.lead {
  color: var(--muted);
  font-size: 16px;
  max-width: 64ch;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.status-board {
  display: grid;
  gap: 12px;
}

.metric,
.panel,
.step,
.command-block,
.note {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.metric {
  align-items: center;
  display: grid;
  gap: 12px;
  grid-template-columns: 42px minmax(0, 1fr);
  padding: 14px;
}

.metric-icon {
  align-items: center;
  background: #edf5ff;
  border-radius: 7px;
  color: var(--accent-strong);
  display: inline-flex;
  height: 42px;
  justify-content: center;
  width: 42px;
}

.metric-label {
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 2px;
}

.metric-value {
  font-size: 16px;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.section {
  margin-top: 18px;
}

.section-head {
  align-items: flex-end;
  display: flex;
  gap: 16px;
  justify-content: space-between;
  margin: 0 0 12px;
}

.section-desc {
  color: var(--muted);
  font-size: 14px;
  max-width: 68ch;
}

.grid {
  display: grid;
  gap: 14px;
}

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

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.panel {
  padding: 16px;
}

.panel-title {
  align-items: center;
  display: flex;
  gap: 8px;
  margin-bottom: 9px;
}

.panel-title svg {
  color: var(--accent-strong);
  height: 18px;
  width: 18px;
}

.muted {
  color: var(--muted);
  font-size: 14px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 12px;
}

.tag {
  background: #eef4ff;
  border: 1px solid #c7d7fe;
  border-radius: 999px;
  color: #1e3a8a;
  font-size: 12px;
  padding: 4px 8px;
}

.step-list {
  display: grid;
  gap: 10px;
}

.step {
  display: grid;
  gap: 12px;
  grid-template-columns: 32px minmax(0, 1fr);
  padding: 14px;
}

.step-number {
  align-items: center;
  background: #eaf2ff;
  border-radius: 50%;
  color: var(--accent-strong);
  display: inline-flex;
  font-weight: 700;
  height: 32px;
  justify-content: center;
  width: 32px;
}

.command-block {
  overflow: hidden;
}

.command-head {
  align-items: center;
  background: var(--surface-soft);
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 10px;
  justify-content: space-between;
  padding: 10px 12px;
}

.command-title {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

pre {
  margin: 0;
  overflow: auto;
  padding: 14px;
}

code {
  font-family: Consolas, "SFMono-Regular", Menlo, monospace;
  font-size: 13px;
}

.copy-btn {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--accent-strong);
  cursor: pointer;
  font: inherit;
  font-size: 12px;
  min-height: 30px;
  padding: 5px 9px;
}

.notice {
  border-radius: 8px;
  margin: 12px 0;
  padding: 13px 14px;
}

.notice.safe {
  background: var(--green-soft);
  border: 1px solid #b8e6cc;
  color: var(--green);
}

.notice.warn {
  background: var(--amber-soft);
  border: 1px solid #f5d08a;
  color: var(--amber);
}

.notice.danger {
  background: var(--red-soft);
  border: 1px solid #ffcdc7;
  color: var(--red);
}

.data-table {
  border-collapse: collapse;
  width: 100%;
}

.data-table th,
.data-table td {
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  padding: 10px 8px;
  text-align: left;
  vertical-align: top;
}

.data-table th {
  color: var(--muted);
  font-weight: 700;
  width: 36%;
}

.footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  margin-top: 34px;
  padding-top: 18px;
}

@media (max-width: 860px) {
  .intro,
  .grid.two,
  .grid.three {
    grid-template-columns: 1fr;
  }

  .topbar-inner,
  .section-head {
    align-items: flex-start;
    flex-direction: column;
  }

  h1 {
    font-size: 28px;
  }
}

@media (max-width: 560px) {
  .container {
    padding: 20px 14px 42px;
  }

  .topbar-inner {
    padding: 12px 14px;
  }

  .intro-panel {
    padding: 18px;
  }

  .nav {
    justify-content: flex-start;
    width: 100%;
  }

  .nav-link {
    padding-left: 8px;
    padding-right: 8px;
  }
}