:root {
  --bg: #f6f7f8;
  --paper: #ffffff;
  --text: #1f2328;
  --muted: #5c6570;
  --line: #e6e8eb;
  --accent: #1a9e3f;
  --accent-soft: #e8f7ec;
  --shadow: 0 8px 28px rgba(22, 32, 40, 0.06);
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
}

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

a:hover {
  text-decoration: underline;
}

.wrap {
  width: min(860px, calc(100% - 32px));
  margin: 20px auto 48px;
  padding: 28px 24px 36px;
  padding-top: calc(28px + env(safe-area-inset-top));
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

h1 {
  margin: 0 0 8px;
  font-size: 26px;
  line-height: 1.35;
}

h2 {
  margin: 32px 0 12px;
  padding-bottom: 8px;
  font-size: 18px;
  border-bottom: 1px solid var(--line);
}

h3 {
  margin: 22px 0 10px;
  font-size: 16px;
}

.meta {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 14px;
}

.lead {
  margin: 0 0 16px;
  color: var(--text);
}

p {
  margin: 0 0 12px;
}

ul,
ol {
  margin: 0 0 14px;
  padding-left: 1.3em;
}

li {
  margin: 4px 0;
}

.note {
  margin: 16px 0;
  padding: 14px 16px;
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  border-radius: 10px;
}

.table-wrap {
  width: 100%;
  margin: 12px 0 18px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--line);
  border-radius: 12px;
}

table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14px;
}

th,
td {
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

th {
  background: #f4f6f7;
  font-weight: 650;
  white-space: nowrap;
}

tr:last-child td {
  border-bottom: 0;
}

.sdk {
  margin: 12px 0;
  padding: 14px 16px;
  background: #fafbfc;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.sdk p {
  margin: 0 0 6px;
}

.sdk p:last-child {
  margin-bottom: 0;
}

.break {
  overflow-wrap: anywhere;
  word-break: break-all;
}

.footer {
  margin-top: 32px;
  padding-top: 18px;
  color: var(--muted);
  font-size: 13px;
  line-height: 2;
  text-align: center;
  letter-spacing: 0.04em;
  border-top: 1px solid var(--line);
}

@media (min-width: 768px) {
  .wrap {
    width: min(900px, calc(100% - 48px));
    margin-top: 32px;
    padding: 40px 48px 48px;
  }

  h1 {
    font-size: 30px;
  }
}

@media (max-width: 480px) {
  html,
  body {
    font-size: 15px;
  }

  .wrap {
    width: calc(100% - 20px);
    margin: 12px auto 32px;
    padding: 20px 16px 28px;
  }

  h1 {
    font-size: 22px;
  }
}