:root {
  --content-width-desktop: 72.92vw; /* 1400 / 1920 * 100 */
  --content-width-mobile: 88.1vw; /* 740 / 840 * 100 */
  --color-text: #333333;
  --color-heading: #d97b00;
  --color-point-bg: #f3f7e7;
  --color-point-border: #e2e7d3;
  --color-product-img-bg: #e7fbff;
  --color-hero-bg: #f5f2ef;
  --color-button-bg: #4b210c;
  --color-button-text: #ffffff;
  --color-border-light: #efefef;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--color-text);
  line-height: 1.8;
  background-color: #ffffff;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  width: var(--content-width-desktop);
  max-width: 1400px;
  margin: 0 auto;
}

header.site-header {
  padding: 0;
}

.site-header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-logo img {
  width: 3.7vw; /* 70px / 1920 */
  min-width: 48px;
}

.contact-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7vw 1.5vw;
  background-color: var(--color-heading);
  color: #ffffff;
  font-size: 0.9rem;
  text-decoration: none;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.hero {
  background-color: var(--color-hero-bg);
}

.hero-inner {
  padding: 0;
}

.hero-image {
  width: 100%;
  margin: 0 auto;
}

main {
  padding-bottom: 6vw;
}

.section {
  padding-top: 3vw;
}

.section-heading-main {
  color: var(--color-heading);
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0 0 1.5vw;
}

.section p {
  margin: 0 0 1vw;
  font-size: 1rem;
}

.section + .section {
  padding-top: 4vw;
}

.product-list {
  display: flex;
  flex-direction: column;
  gap: 2.5vw;
  margin-top: 2.5vw;
}

.product-card {
  display: flex;
  border: 1px solid var(--color-border-light);
}

.product-text {
  width: 50%;
  padding: 1.8vw 2vw;
  background-color: #ffffff;
}

.product-title {
  color: var(--color-heading);
  font-weight: 700;
  margin: 0 0 0.8vw;
  font-size: 1.25rem;
}

.product-text p {
  margin: 0;
  font-size: 0.95rem;
}

.product-image {
  width: 50%;
  background: linear-gradient(135deg, #e7fbff 0%, #f6ffff 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5vw;
}

.support-heading {
  color: var(--color-heading);
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0 0 1.5vw;
}

.points-section {
  margin-top: 3vw;
}

.points-list {
  display: flex;
  gap: 2vw;
}

.point-card {
  flex: 1 1 0;
  background-color: var(--color-point-bg);
  border: 1px solid var(--color-point-border);
  padding: 1.5vw 1.8vw;
  font-size: 0.9rem;
}

.point-title {
  font-weight: 700;
  margin-bottom: 0.6vw;
  font-size: 1.25rem;
}

.cta-buttons {
  margin-top: 2.8vw;
  display: flex;
  justify-content: center;
  gap: 3vw;
}

.cta-buttons a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 13vw;
  padding: 0.9vw 2.5vw;
  background-color: var(--color-button-bg);
  color: var(--color-button-text);
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
}

footer.site-footer {
  border-top: 1px solid #f0f0f0;
  padding: 2.5vw 0 2vw;
  font-size: 0.85rem;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5vw;
}

.footer-company {
  line-height: 1.6;
}

.footer-copy {
  text-align: center;
  font-size: 0.8rem;
  color: #777777;
}

/* Responsive (〜840px) */
@media (max-width: 840px) {
  .container {
    width: var(--content-width-mobile);
    max-width: none;
  }

  header.site-header {
    padding: 3vw 0 2vw;
  }

  .site-header-inner {
    align-items: flex-start;
  }

  .site-logo img {
    width: 12vw;
  }

  .contact-button {
    padding: 1.5vw 3vw;
    font-size: 0.85rem;
  }

  .hero-inner {
    padding: 4vw 0 5vw;
  }

  .section {
    padding-top: 6vw;
  }

  .section-heading-main {
    font-size: 1.1rem;
  }

  .product-card {
    flex-direction: column;
  }

  .product-text,
  .product-image {
    width: 100%;
  }

  .product-text {
    padding: 4vw 4.5vw;
  }

  .product-image {
    padding: 4vw 4vw 5vw;
  }

  .points-list {
    flex-direction: column;
    gap: 3vw;
  }

  .point-card {
    padding: 4vw 4.5vw;
  }

  .cta-buttons {
    flex-direction: column;
    gap: 3vw;
  }

  .cta-buttons a {
    width: 100%;
    min-width: 0;
    padding: 3vw 0;
    text-align: center;
  }

  footer.site-footer {
    padding: 6vw 0 4vw;
  }
}