:root {
  color-scheme: light;
  --ink: #111827;
  --muted: #6b7788;
  --line: #dfe6ef;
  --blue: #1469e8;
  --navy: #0b1220;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: #edf2f8;
}

body {
  min-height: 100%;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 0%, rgba(67, 140, 245, 0.13), transparent 34%),
    #edf2f8;
}

.page {
  width: min(680px, 100%);
  margin: 0 auto;
  padding: max(26px, env(safe-area-inset-top)) 16px
    max(34px, env(safe-area-inset-bottom));
}

.hero {
  display: flex;
  align-items: center;
  gap: 19px;
  padding: 24px 9px 28px;
}

.hero img {
  flex: 0 0 auto;
  width: 92px;
  height: 92px;
  border-radius: 24px;
  box-shadow: 0 18px 45px rgba(16, 35, 61, 0.2);
}

.eyebrow {
  margin: 0 0 7px;
  color: #3175d3;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.hero h1 {
  margin: 0 0 8px;
  font-size: 31px;
  letter-spacing: -0.05em;
}

.hero p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.install-card,
.notes {
  border: 1px solid rgba(211, 220, 231, 0.92);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 24px 60px rgba(32, 57, 87, 0.08);
}

.install-card {
  padding: 27px 23px;
}

.step-label {
  color: var(--blue);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.install-card h2 {
  margin: 9px 0 10px;
  font-size: 25px;
  letter-spacing: -0.04em;
}

.notice {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.75;
}

.install-button {
  display: flex;
  min-height: 54px;
  align-items: center;
  justify-content: space-between;
  margin-top: 23px;
  padding: 0 18px;
  border-radius: 14px;
  color: #fff;
  background: var(--blue);
  box-shadow: 0 12px 25px rgba(20, 105, 232, 0.22);
  font-size: 14px;
  font-weight: 750;
  text-decoration: none;
}

.install-button:active {
  background: #0e56c2;
}

.steps {
  display: grid;
  gap: 15px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 31px 1fr;
  align-items: start;
  gap: 11px;
}

.steps li > span {
  display: grid;
  width: 29px;
  height: 29px;
  place-items: center;
  border-radius: 9px;
  color: var(--blue);
  background: #edf3fc;
  font-size: 9px;
  font-weight: 800;
}

.steps p {
  margin: 3px 0 0;
  color: #4d596a;
  font-size: 13px;
  line-height: 1.7;
}

.notes {
  margin-top: 15px;
  padding: 22px 23px;
  box-shadow: none;
}

.notes h3 {
  margin: 0 0 12px;
  font-size: 14px;
}

.notes p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}

@media (max-width: 430px) {
  .hero {
    align-items: flex-start;
    gap: 15px;
  }

  .hero img {
    width: 76px;
    height: 76px;
    border-radius: 20px;
  }

  .hero h1 {
    font-size: 27px;
  }

  .install-card,
  .notes {
    border-radius: 19px;
  }
}