:root {
  --app-blue: #007aff;
  --app-blue-pressed: #0066d6;
  --app-beige: #f2e8d8;
  --ink: #1c1c1e;
  --muted: #6d6a66;
  --card: #fffdf9;
  --line: rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", sans-serif;
  background: var(--app-beige);
  color: var(--ink);
  line-height: 1.55;
}

a {
  color: var(--app-blue);
  word-break: break-word;
}

.topbar {
  background: var(--app-blue);
  color: #fff;
}

.topbar-inner,
.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 56px;
  padding-top: 10px;
  padding-bottom: 10px;
}

.brand {
  font-weight: 650;
  font-size: 17px;
  letter-spacing: 0.01em;
}

.lang-switch {
  font-size: 14px;
  white-space: nowrap;
}

.lang-switch a,
.lang-switch span {
  color: #fff;
  text-decoration: none;
  margin-left: 12px;
}

.lang-switch a {
  opacity: 0.85;
}

.lang-switch [aria-current="page"] {
  opacity: 1;
  font-weight: 650;
}

.wrap {
  padding-top: 28px;
  padding-bottom: 56px;
}

h1 {
  margin: 0 0 8px;
  font-size: 28px;
  line-height: 1.2;
}

.lede {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px 18px;
  margin: 0 0 16px;
  box-shadow: 0 8px 24px rgba(90, 70, 40, 0.06);
}

.card h2 {
  margin: 0 0 10px;
  font-size: 18px;
}

.card p,
.card li {
  color: var(--muted);
  font-size: 15px;
}

.card p:last-child,
.card ul:last-child {
  margin-bottom: 0;
}

.card ul {
  margin: 8px 0 0;
  padding-left: 1.2rem;
}

.mail {
  display: inline-block;
  margin-top: 6px;
  padding: 12px 18px;
  border-radius: 12px;
  background: var(--app-blue);
  color: #fff;
  font-weight: 650;
  text-decoration: none;
}

.mail:hover,
.mail:focus {
  background: var(--app-blue-pressed);
}

.mail-address {
  display: block;
  margin-top: 10px;
  font-size: 14px;
  color: var(--muted);
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
}

.footnote {
  margin-top: 8px;
  font-size: 13px;
  color: var(--muted);
}