:root {
  --red: #c40000;
  --red-dark: #8f0000;
  --red-soft: #fff4f4;
  --line: #efc8c8;
  --white: #ffffff;
  --text: #222222;
  --shadow: 0 12px 28px rgba(196, 0, 0, 0.10);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: Inter, Arial, sans-serif;
  background: var(--white);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

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

.page {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  padding: 18px;
}

.hero {
  width: 100%;
  max-width: 560px;
  text-align: center;
  padding: 18px 0 32px;
}

.logo-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
}

.logo-placeholder {
  min-width: 180px;
  padding: 14px 22px;
  border: 2px dashed var(--red);
  border-radius: 14px;
  color: var(--red);
  font-weight: 800;
  letter-spacing: 0.08em;
  background: var(--red-soft);
}

.logo-image {
  max-width: 240px;
  max-height: 90px;
  object-fit: contain;
}

h1 {
  margin: 0 0 28px;
  font-size: clamp(38px, 7.8vw, 68px);
  line-height: 0.98;
  font-weight: 900;
  color: var(--text);
  letter-spacing: -0.045em;
}

h1 span {
  color: var(--red);
}

.steps {
  display: grid;
  gap: 16px;
  margin-bottom: 24px;
}

.step-card {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 18px 18px;
  background: var(--white);
  border: 2px solid var(--red);
  border-radius: 18px;
  text-align: left;
  box-shadow: var(--shadow);
}

.step-number {
  flex: 0 0 58px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--red);
  color: var(--white);
  font-size: 18px;
  font-weight: 800;
}

.step-text {
  font-size: clamp(18px, 3.6vw, 26px);
  font-weight: 800;
  color: var(--text);
  line-height: 1.15;
}

.main-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  width: 100%;
  min-height: 86px;
  padding: 18px 24px;
  margin: 8px 0 28px;
  background: var(--red);
  color: var(--white);
  border-radius: 20px;
  font-size: clamp(24px, 5vw, 38px);
  font-weight: 900;
  letter-spacing: -0.03em;
  box-shadow: 0 16px 34px rgba(196, 0, 0, 0.22);
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.main-button:hover {
  transform: translateY(-2px);
  opacity: 0.96;
}

.main-button span {
  font-size: 1.1em;
}

.faq-box {
  text-align: left;
  background: var(--white);
  border: 2px solid var(--red);
  border-radius: 22px;
  padding: 18px 22px;
  box-shadow: var(--shadow);
}

.faq-box h2 {
  margin: 8px 0 8px;
  color: var(--red);
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 800;
  letter-spacing: 0.02em;
}

details {
  border-top: 1px solid var(--line);
}

details:first-of-type {
  margin-top: 8px;
}

summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  font-weight: 700;
  font-size: 16px;
}

summary::-webkit-details-marker { display: none; }
summary span {
  color: var(--red);
  font-size: 26px;
  line-height: 1;
}

details[open] summary span {
  transform: rotate(45deg);
}

details p {
  margin: 0 0 18px;
  color: #555555;
  line-height: 1.6;
  font-size: 14px;
}

strong {
  color: var(--red-dark);
}

@media (max-width: 480px) {
  .page { padding: 12px; }
  .hero { padding-top: 10px; }
  .step-card { gap: 14px; padding: 16px; }
  .step-number { flex-basis: 50px; width: 50px; height: 50px; font-size: 16px; }
  .main-button { min-height: 78px; border-radius: 18px; }
  .faq-box { padding: 16px 18px; }
}