* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #ffffff;
  color: #1a1a1a;
}

.primary-cta {
  display: inline-block;
  cursor: pointer;
  white-space: nowrap;
  background: #f97316;
  padding: 1rem 2.5rem;
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  text-decoration: none;
  transition: transform .2s ease, background-color .2s ease;
}

.primary-cta:hover {
  background: #ea6c0a;
  transform: scale(1.05);
}

.problem-item {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.75;
  color: #1a3a5c;
}

.problem-item::before {
  content: "・";
  margin-top: 0.1rem;
  color: #1a3a5c;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1;
}

.process-card {
  position: relative;
  width: 100%;
  overflow: hidden;
  border: 1px solid #d0dae8;
  background: #f0f5fa;
}

@media (min-width: 768px) {
  .process-card {
    width: 20rem;
  }
}

.gate-card {
  width: 100%;
  overflow: hidden;
  border: 1px solid #d0dae8;
  background: #ffffff;
}

@media (min-width: 768px) {
  .gate-card {
    width: 20rem;
  }
}

.merit-card {
  display: flex;
  aspect-ratio: 1 / 1;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid #e2eaf4;
  background: #f7f9fc;
}

@media (max-width: 640px) {
  .primary-cta {
    width: 100%;
    padding-left: 1.25rem;
    padding-right: 1.25rem;
    text-align: center;
  }
}