:root {
  color-scheme: light;
  font-family: "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  --ink: #172126;
  --muted: #637178;
  --line: #dbe1e3;
  --paper: #ffffff;
  --background: #f2f5f5;
  --accent: #16745f;
  --accent-dark: #0f5b4a;
  --signal: #b42318;
  --warm: #9a6700;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
}

body {
  min-width: 320px;
  background: var(--background);
  color: var(--ink);
}

a {
  color: var(--accent-dark);
}

.public-header {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 12px max(24px, calc((100vw - 1040px) / 2));
  border-bottom: 1px solid var(--line);
  background: rgb(255 255 255 / 96%);
}

.public-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
}

.public-brand img {
  width: 34px;
  height: 34px;
  border-radius: 6px;
  object-fit: cover;
}

.public-brand strong {
  font-size: 15px;
}

.public-header nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.public-header nav a {
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
}

.public-header nav a:hover {
  color: var(--ink);
}

.public-main {
  width: min(100% - 32px, 1040px);
  margin: 0 auto;
  padding: 72px 0 80px;
}

.public-title {
  max-width: 760px;
  margin-bottom: 42px;
}

.public-title span {
  color: var(--accent);
  font-size: 11px;
  font-weight: 800;
}

.public-title h1 {
  margin: 10px 0;
  font-size: clamp(34px, 6vw, 64px);
  line-height: 1.06;
}

.public-title p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.public-lead {
  max-width: 820px;
  padding-bottom: 44px;
}

.public-lead > p {
  margin: 0;
  color: #344249;
  font-size: 20px;
  line-height: 1.75;
}

.public-lead > p + p {
  margin-top: 14px;
}

.secondary-copy {
  color: #66757c !important;
  font-size: 14px !important;
}

.public-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.public-actions a {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 0 15px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

.public-actions .primary-link {
  border-color: var(--accent);
  background: var(--accent);
  color: white;
}

.public-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  background: var(--paper);
}

.public-grid article {
  min-height: 180px;
  padding: 26px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.public-grid h2,
.public-section h2 {
  margin: 0 0 12px;
  font-size: 19px;
}

.feature-index {
  display: inline-block;
  margin-bottom: 20px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
}

.feature-index.is-red {
  color: var(--signal);
}

.feature-index.is-gold {
  color: var(--warm);
}

.public-grid p,
.public-section p,
.public-section li {
  margin: 0;
  color: #4d5b62;
  font-size: 15px;
  line-height: 1.8;
}

.public-section {
  max-width: 860px;
  padding: 30px 0;
  border-top: 1px solid var(--line);
}

.public-section + .public-section {
  margin-top: 4px;
}

.public-section p + p {
  margin-top: 14px;
}

.public-section dl {
  margin: 0;
}

.public-section dl div {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 18px;
  padding: 11px 0;
  border-top: 1px solid #e5e9ea;
}

.public-section dt {
  color: var(--muted);
  font-size: 13px;
}

.public-section dd {
  margin: 0;
  overflow-wrap: anywhere;
  font-size: 14px;
}

.scope-list code {
  color: var(--signal);
  font-size: 12px;
  font-weight: 700;
}

.policy-note {
  padding: 28px;
  border: 1px solid #cbd7d3;
  border-left: 4px solid var(--accent);
  background: #ffffff;
}

.public-steps ol {
  margin: 0;
  padding-left: 22px;
}

.public-steps li + li {
  margin-top: 8px;
}

.public-footer {
  min-height: 96px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px 24px;
  padding: 24px;
  border-top: 1px solid var(--line);
  background: var(--paper);
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 700px) {
  .public-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
    padding: 14px 16px;
  }

  .public-header nav {
    gap: 10px 16px;
  }

  .public-main {
    padding: 46px 0 56px;
  }

  .public-grid {
    grid-template-columns: 1fr;
  }

  .public-grid article {
    min-height: 0;
  }

  .public-lead > p {
    font-size: 17px;
  }

  .public-section dl div {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}