:root {
  color-scheme: light;
  font-family: "Segoe UI", "Noto Sans TC", system-ui, sans-serif;
  color: #172033;
  background: #f6f8fb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
}

a {
  color: inherit;
}

.campaign-header,
.campaign-main,
.campaign-footer {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
}

.campaign-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 0;
}

.campaign-brand {
  font-weight: 800;
  text-decoration: none;
}

.campaign-header nav {
  display: flex;
  gap: 18px;
  font-size: 14px;
}

.campaign-hero {
  padding: clamp(38px, 8vw, 84px);
  border-radius: 24px;
  background: linear-gradient(135deg, #e7f2ff, #fff 68%);
}

.campaign-eyebrow {
  color: #075da8;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
}

.campaign h1 {
  max-width: 760px;
  margin: 14px 0;
  font-size: clamp(30px, 5vw, 48px);
  line-height: 1.2;
}

.campaign-lead {
  max-width: 720px;
  color: #475569;
  font-size: 18px;
  line-height: 1.8;
}

.campaign-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.campaign-button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid #0969b5;
  border-radius: 9px;
  background: #0969b5;
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}

.campaign-button-secondary {
  background: #fff;
  color: #075da8;
}

.campaign-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin: 24px 0;
}

.campaign-card,
.campaign-section {
  padding: 24px;
  border: 1px solid #e1e8f0;
  border-radius: 14px;
  background: #fff;
}

.campaign-card h2,
.campaign-section h2 {
  margin-top: 0;
  font-size: 19px;
}

.campaign-card p,
.campaign-section p,
.campaign-section li {
  color: #475569;
  line-height: 1.75;
}

.campaign-section {
  margin: 16px 0;
}

.campaign-note {
  color: #64748b;
  font-size: 13px;
  line-height: 1.7;
}

.campaign-footer {
  padding: 24px 0 40px;
  color: #64748b;
  font-size: 13px;
}

@media (max-width: 560px) {
  .campaign-header,
  .campaign-main,
  .campaign-footer {
    width: min(100% - 24px, 1080px);
  }

  .campaign-header nav {
    gap: 10px;
    font-size: 12px;
  }

  .campaign-hero {
    padding: 28px 22px;
    border-radius: 16px;
  }

  .campaign-lead {
    font-size: 16px;
  }
}