:root {
  --ink: #1d1d1f;
  --muted: #5f6672;
  --line: #dde3ea;
  --panel: #f7f9fb;
  --blue: #0a66c2;
  --green: #12715b;
  --orange: #b85613;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background: #ffffff;
  line-height: 1.72;
  letter-spacing: 0;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
.topbar {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .94);
}
.topbar-inner {
  width: min(1120px, calc(100% - 32px));
  min-height: 64px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.brand {
  color: var(--ink);
  font-weight: 800;
}
.nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--muted);
}
.page {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}
.hero {
  padding: 56px 0 36px;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, .7fr);
  gap: 36px;
  align-items: center;
}
.eyebrow {
  color: var(--green);
  font-size: 14px;
  font-weight: 800;
}
h1 {
  margin: 10px 0 16px;
  font-size: 42px;
  line-height: 1.12;
  letter-spacing: 0;
}
.lead {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 18px;
}
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  border-radius: 8px;
  border: 1px solid var(--line);
  font-weight: 800;
}
.button.primary {
  border-color: var(--blue);
  color: #fff;
  background: var(--blue);
}
.summary {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
  background: var(--panel);
}
.summary strong {
  display: block;
  margin-bottom: 8px;
}
.summary ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}
.content {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 36px;
  padding: 20px 0 64px;
}
section {
  padding: 28px 0;
  border-top: 1px solid var(--line);
}
h2 {
  margin: 0 0 14px;
  font-size: 26px;
  line-height: 1.25;
  letter-spacing: 0;
}
h3 {
  margin: 22px 0 8px;
  font-size: 18px;
}
p { margin: 0 0 14px; color: var(--muted); }
ol, ul { color: var(--muted); }
.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.tile {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  background: #fff;
}
.tile strong { display: block; margin-bottom: 4px; }
.side {
  position: sticky;
  top: 20px;
  align-self: start;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  background: var(--panel);
}
.side a {
  display: block;
  margin: 8px 0;
  font-weight: 700;
}
.footer {
  border-top: 1px solid var(--line);
  padding: 26px 0 42px;
  color: var(--muted);
  font-size: 14px;
}
@media (max-width: 820px) {
  .hero, .content { grid-template-columns: 1fr; }
  h1 { font-size: 32px; }
  .side { position: static; }
  .grid { grid-template-columns: 1fr; }
}