* {
  box-sizing: border-box;
}

:root {
  color-scheme: light;
  --ink: #172033;
  --text: #343b4a;
  --muted: #697183;
  --line: #e8ebf2;
  --pink: #ef5f9a;
  --blue: #5271f7;
  --green: #37b66a;
  --paper: #ffffff;
  --bg: #fbfcff;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 16%, rgba(239, 95, 154, 0.12) 0 14%, transparent 15%),
    radial-gradient(circle at 88% 12%, rgba(82, 113, 247, 0.1) 0 18%, transparent 19%),
    var(--bg);
  line-height: 1.75;
}

a {
  color: inherit;
  text-decoration: none;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(232, 235, 242, 0.78);
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(18px);
}

.nav-inner,
.page,
.footer-inner {
  width: min(100% - 40px, 1040px);
  margin: 0 auto;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 800;
}

.brand img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  gap: 22px;
  color: #40485b;
  font-size: 15px;
}

.hero {
  padding: 74px 0 36px;
}

.kicker {
  margin: 0 0 14px;
  color: var(--pink);
  font-weight: 800;
}

h1 {
  max-width: 850px;
  margin: 0;
  color: var(--ink);
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.12;
  letter-spacing: 0;
}

.lead {
  max-width: 760px;
  margin: 22px 0 0;
  color: #485166;
  font-size: 21px;
  line-height: 1.55;
  font-weight: 600;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
}

.primary {
  color: #fff;
  background: linear-gradient(135deg, var(--pink), var(--blue));
  box-shadow: 0 16px 36px rgba(239, 95, 154, 0.24);
}

.secondary {
  color: var(--ink);
  border: 1px solid var(--line);
  background: #fff;
}

.content {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 34px;
  align-items: start;
  padding: 30px 0 82px;
}

article,
.side-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 16px 42px rgba(47, 56, 92, 0.08);
}

article {
  padding: 34px;
}

article h2 {
  margin: 34px 0 12px;
  color: var(--ink);
  font-size: 30px;
  line-height: 1.25;
}

article h2:first-child {
  margin-top: 0;
}

article h3 {
  margin: 24px 0 8px;
  color: var(--ink);
  font-size: 21px;
}

article p,
article li {
  color: var(--text);
  font-size: 17px;
}

article ul,
article ol {
  padding-left: 23px;
}

article li {
  margin: 8px 0;
}

.note {
  margin: 24px 0;
  padding: 18px 20px;
  border-left: 4px solid var(--pink);
  border-radius: 8px;
  background: #fff4f8;
}

.side {
  position: sticky;
  top: 92px;
}

.side-card {
  padding: 22px;
}

.side-card + .side-card {
  margin-top: 16px;
}

.side-card h2 {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: 21px;
}

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

.side-card ul {
  margin: 0;
  padding-left: 20px;
}

.link-list {
  display: grid;
  gap: 9px;
}

.link-list a {
  color: var(--blue);
  font-weight: 700;
}

.faq details {
  border-top: 1px solid var(--line);
  padding: 15px 0;
}

.faq summary {
  cursor: pointer;
  color: var(--ink);
  font-weight: 800;
}

.faq details p {
  margin-bottom: 0;
}

footer {
  border-top: 1px solid var(--line);
  background: #fff;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  padding: 28px 0;
  color: var(--muted);
  font-size: 14px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

@media (max-width: 860px) {
  .nav-links {
    display: none;
  }

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

  .side {
    position: static;
  }

  article {
    padding: 24px;
  }
}

@media (max-width: 560px) {
  .nav-inner,
  .page,
  .footer-inner {
    width: min(100% - 28px, 1040px);
  }

  .hero {
    padding-top: 52px;
  }

  .lead {
    font-size: 19px;
  }

  .actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }
}