:root {
  color: #111827;
  background: #f3f4f6;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; }
button { color: inherit; font: inherit; }
main { margin: 0 auto; max-width: 640px; min-height: 100vh; background: #fff; }
.hero {
  padding: 64px 24px 40px;
  background: linear-gradient(145deg, #111827, #374151);
  color: #fff;
  border-radius: 0 0 28px 28px;
}
.brand { color: #fbbf24; font-size: 12px; font-weight: 700; letter-spacing: .18em; }
h1 { margin: 16px 0 12px; font-size: 32px; line-height: 1.28; }
.hero p { margin: 0; color: #d1d5db; line-height: 1.7; }
.actions { display: grid; gap: 12px; padding: 22px 18px 10px; }
.actions button {
  display: grid;
  width: 100%;
  padding: 18px;
  text-align: left;
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, .05);
}
.actions strong { font-size: 17px; }
.actions span { margin-top: 6px; color: #6b7280; font-size: 13px; }
.guidance { margin: 8px 18px; padding: 14px; border-radius: 12px; background: #fffbeb; color: #92400e; line-height: 1.6; }
.promise { margin: 18px; padding: 20px; border-radius: 18px; background: #f9fafb; }
h2 { margin: 0 0 12px; font-size: 18px; }
li { margin: 9px 0; color: #4b5563; line-height: 1.55; }
footer { padding: 16px 24px 32px; color: #9ca3af; font-size: 12px; text-align: center; }