/* Website pages (intro, privacy, Windows helper). The editors keep their own styles in /app/. */
* {
  box-sizing: border-box;
}
:root {
  --ink: #253044;
  --muted: #66738a;
  --line: #e5e9f0;
  --accent: #6655d6;
  --accent-ink: #4b3fb0;
  --wash: #f5f6fa;
  --card: #fff;
}
html {
  scroll-padding-top: 72px;
}
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font:
    16px/1.7 'Segoe UI',
    'Microsoft YaHei',
    'PingFang SC',
    sans-serif;
}
a {
  color: var(--accent);
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 10px max(16px, calc((100% - 1120px) / 2));
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  font-weight: 650;
  font-size: 16px;
  text-decoration: none;
  white-space: nowrap;
}
.logo img {
  display: block;
}
.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
}
.site-nav a,
.lang {
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}
.site-nav a:hover,
.lang:hover {
  color: var(--accent);
}
.spacer {
  flex: 1;
}
.btn {
  display: inline-block;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: #fff;
  text-decoration: none;
  font-weight: 600;
  white-space: nowrap;
}
.btn:hover {
  border-color: #c8c0f0;
  background: #f4f2fd;
}
.btn.primary {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}
.btn.primary:hover {
  background: var(--accent-ink);
}
.btn.small {
  padding: 6px 12px;
  font-size: 14px;
}
.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 16px;
}
.hero {
  padding: 64px 0 40px;
}
.hero h1 {
  max-width: 820px;
  margin: 0 0 14px;
  font-size: clamp(30px, 5vw, 46px);
  line-height: 1.2;
  letter-spacing: -0.01em;
}
.lead {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
}
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 8px;
}
.note {
  color: var(--muted);
  font-size: 14px;
}
.band {
  padding: 40px 0;
  border-top: 1px solid var(--line);
}
.band.wash {
  background: var(--wash);
}
.band h2 {
  margin: 0 0 18px;
  font-size: 26px;
  line-height: 1.3;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.card {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
}
.card h3 {
  margin: 0 0 6px;
  font-size: 18px;
}
.card p {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 15px;
}
.card .tag {
  display: inline-block;
  margin-bottom: 8px;
  padding: 1px 8px;
  border-radius: 999px;
  background: #eeebfb;
  color: var(--accent-ink);
  font-size: 12px;
  font-weight: 600;
}
.points {
  margin: 0;
  padding-left: 20px;
}
.points li {
  margin: 6px 0;
}
.doc {
  max-width: 820px;
  margin: 0 auto;
  padding: 40px 16px 56px;
}
.doc h1 {
  margin: 0 0 8px;
  font-size: 32px;
  line-height: 1.25;
}
.doc h2 {
  margin: 32px 0 8px;
  font-size: 21px;
}
.doc code {
  display: inline-block;
  padding: 0 4px;
  border-radius: 4px;
  background: var(--wash);
  font:
    14px Consolas,
    monospace;
}
.doc table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}
.doc th,
.doc td {
  text-align: left;
  vertical-align: top;
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
}
.doc th {
  background: var(--wash);
}
.hash {
  word-break: break-all;
}
.site-footer {
  padding: 28px 0 36px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
}
.site-footer a {
  color: var(--muted);
}
.home {
  max-width: 640px;
  margin: 18vh auto 0;
  padding: 0 16px;
  text-align: center;
}
@media (max-width: 760px) {
  .site-header {
    flex-wrap: wrap;
    gap: 8px 14px;
  }
  .site-nav {
    order: 3;
    width: 100%;
  }
  .hero {
    padding: 36px 0 24px;
  }
  .lead {
    font-size: 16px;
  }
  .doc table {
    display: block;
    overflow-x: auto;
  }
}
.actions.centered {
  justify-content: center;
}