:root {
  --red: #bf1b50;
  --deep: #8f123e;
  --ink: #28212a;
  --muted: #6d6470;
  --line: #f0c9d6;
  --soft: #fff5f8;
  --paper: #ffffff;
  --shadow: 0 18px 45px rgba(120, 18, 62, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: Arial, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  line-height: 1.7;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  padding: 0 6vw;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid #f4d9e2;
}

.brand {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  font-weight: 700;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  color: #fff;
  background: var(--red);
  border-radius: 8px;
}

.site-nav {
  display: flex;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
}

.site-nav a {
  text-decoration: none;
}

.nav-toggle {
  display: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  gap: 32px;
  align-items: center;
  min-height: calc(100vh - 68px);
  padding: 64px 6vw 56px;
  background:
    radial-gradient(circle at 80% 15%, rgba(191, 27, 80, 0.12), transparent 30%),
    linear-gradient(180deg, #fff, #fff7fa 84%, #fff);
}

.eyebrow,
.pill {
  color: var(--red);
  font-size: 13px;
  font-weight: 700;
}

.hero h1 {
  max-width: 780px;
  margin: 12px 0 18px;
  color: var(--deep);
  font-size: 56px;
  font-weight: 800;
  line-height: 1.18;
}

.lead {
  max-width: 690px;
  margin: 0 0 28px;
  color: #403640;
  font-size: 18px;
}

.hero-actions,
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-weight: 700;
  text-decoration: none;
}

.button.primary {
  color: #fff;
  background: var(--red);
  box-shadow: 0 10px 24px rgba(191, 27, 80, 0.24);
}

.button.secondary {
  color: var(--red);
  background: #fff;
  border-color: var(--line);
}

.button.wide {
  width: 100%;
}

.microcopy,
.fine {
  margin-top: 14px;
  color: var(--muted);
  font-size: 12px;
}

.cta-panel {
  padding: 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.cta-panel h2 {
  margin: 12px 0;
  color: var(--deep);
  font-size: 28px;
  line-height: 1.35;
}

.quick-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  padding: 20px 6vw;
  background: #fff;
}

.quick-links a {
  padding: 16px;
  color: var(--red);
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.section {
  padding: 72px 6vw;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 28px;
}

.section h2 {
  margin: 8px 0 12px;
  color: var(--deep);
  font-size: 34px;
  line-height: 1.35;
}

.info-grid,
.column-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.info-card,
.column-card,
.check-card,
.notice,
.article {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 8px 28px rgba(120, 18, 62, 0.07);
}

.info-card,
.column-card {
  padding: 22px;
}

.info-card h3,
.column-card h3 {
  margin: 10px 0 8px;
  font-size: 20px;
  line-height: 1.45;
}

.info-card p,
.column-card p {
  color: var(--muted);
  font-size: 14px;
}

.info-card a,
.column-card button,
.text-button {
  color: var(--red);
  font-weight: 700;
}

.icon {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  color: #fff;
  font-weight: 700;
  background: var(--red);
  border-radius: 10px;
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
  align-items: start;
  background: var(--soft);
}

.check-card {
  display: grid;
  gap: 12px;
  padding: 24px;
}

.check-card label {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 12px;
  background: #fff8fb;
  border: 1px solid #f4d9e2;
  border-radius: 10px;
}

.check-card input {
  width: 18px;
  height: 18px;
  margin-top: 4px;
}

.result {
  padding: 14px;
  color: var(--deep);
  font-weight: 700;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.search-box {
  max-width: 560px;
  margin-bottom: 22px;
}

.search-box input {
  width: 100%;
  min-height: 50px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 16px;
}

.column-card button,
.text-button {
  padding: 0;
  background: none;
  border: 0;
  cursor: pointer;
}

.article-view {
  padding: 0 6vw 72px;
}

.article {
  max-width: 900px;
  margin-top: 16px;
  padding: 32px;
}

.article h2 {
  margin-top: 0;
  color: var(--deep);
  font-size: 32px;
  line-height: 1.35;
}

.article-intro {
  margin: 16px 0 22px;
  padding: 18px 20px;
  color: #403640;
  background: #fffafc;
  border-left: 5px solid var(--red);
  border-radius: 10px;
}

.article-visual {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 18px;
  align-items: center;
  margin: 22px 0;
  padding: 20px;
  overflow: hidden;
  color: var(--deep);
  background:
    linear-gradient(135deg, rgba(191, 27, 80, 0.12), rgba(255, 245, 248, 0.78)),
    #fff9fb;
  border: 1px solid var(--line);
  border-radius: 14px;
}

.visual-phone {
  position: relative;
  width: 116px;
  height: 156px;
  margin: 0 auto;
  background: #fff;
  border: 3px solid var(--deep);
  border-radius: 22px;
  box-shadow: 12px 12px 0 rgba(191, 27, 80, 0.14);
}

.visual-phone::before {
  position: absolute;
  top: 12px;
  left: 50%;
  width: 38px;
  height: 5px;
  content: "";
  background: #edd2dc;
  border-radius: 999px;
  transform: translateX(-50%);
}

.visual-phone span {
  position: absolute;
  left: 22px;
  width: 72px;
  height: 13px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.visual-phone span:nth-child(1) {
  top: 48px;
}

.visual-phone span:nth-child(2) {
  top: 76px;
  width: 52px;
  background: #fff;
}

.visual-phone span:nth-child(3) {
  top: 106px;
  width: 82px;
  background: var(--red);
  border-color: var(--red);
}

.visual-phone span:nth-child(4) {
  display: none;
}

.visual-price .visual-phone span {
  left: 25px;
  height: 12px;
  border-radius: 4px;
}

.visual-price .visual-phone span:nth-child(1) {
  top: 96px;
  width: 16px;
  height: 30px;
  background: #ffdce8;
}

.visual-price .visual-phone span:nth-child(2) {
  top: 72px;
  width: 16px;
  height: 54px;
  background: #f6a8c0;
}

.visual-price .visual-phone span:nth-child(3) {
  top: 48px;
  width: 16px;
  height: 78px;
  background: var(--red);
}

.visual-price .visual-phone span:nth-child(4) {
  top: 42px;
  left: 70px;
  display: block;
  width: 22px;
  height: 22px;
  color: var(--red);
  content: "";
  background: #fff;
  border: 2px solid var(--red);
  border-radius: 50%;
}

.visual-area .visual-phone {
  border-radius: 18px;
}

.visual-area .visual-phone span {
  width: 18px;
  height: 18px;
  background: #fff;
  border: 3px solid var(--red);
  border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg);
}

.visual-area .visual-phone span:nth-child(1) {
  top: 46px;
  left: 28px;
}

.visual-area .visual-phone span:nth-child(2) {
  top: 82px;
  left: 62px;
}

.visual-area .visual-phone span:nth-child(3) {
  top: 108px;
  left: 34px;
}

.visual-campaign .visual-phone span,
.visual-referral .visual-phone span {
  left: 20px;
  width: 76px;
  height: 22px;
  border-radius: 6px;
}

.visual-campaign .visual-phone span:nth-child(1) {
  top: 44px;
  background: #fff0f5;
}

.visual-campaign .visual-phone span:nth-child(2) {
  top: 76px;
  background: #ffdce8;
}

.visual-campaign .visual-phone span:nth-child(3) {
  top: 108px;
  color: #fff;
  background: var(--red);
}

.visual-referral .visual-phone span:nth-child(1),
.visual-referral .visual-phone span:nth-child(3) {
  height: 12px;
  background: #fff0f5;
}

.visual-referral .visual-phone span:nth-child(2) {
  top: 72px;
  height: 28px;
  background: var(--red);
}

.visual-mnp .visual-phone span,
.visual-device .visual-phone span,
.visual-final .visual-phone span {
  left: 26px;
  width: 64px;
  height: 14px;
  background: #fff;
  border: 2px solid var(--line);
  border-radius: 4px;
}

.visual-mnp .visual-phone span:nth-child(3),
.visual-final .visual-phone span:nth-child(3) {
  background: var(--red);
  border-color: var(--red);
}

.visual-device .visual-phone {
  width: 126px;
  border-radius: 24px;
}

.visual-device .visual-phone span:nth-child(1) {
  top: 44px;
  left: 34px;
  width: 58px;
  height: 58px;
  border-radius: 14px;
}

.visual-device .visual-phone span:nth-child(2) {
  top: 116px;
  left: 42px;
  width: 42px;
}

.visual-device .visual-phone span:nth-child(3) {
  display: none;
}

.visual-link .visual-phone span {
  background: #fff;
  border: 2px solid var(--red);
  border-radius: 50%;
}

.visual-link .visual-phone span:nth-child(1) {
  top: 48px;
  left: 42px;
  width: 34px;
  height: 34px;
}

.visual-link .visual-phone span:nth-child(2) {
  top: 90px;
  left: 28px;
  width: 60px;
  height: 24px;
  background: var(--red);
  border-radius: 999px;
}

.visual-link .visual-phone span:nth-child(3) {
  display: none;
}

.visual-family .visual-phone span {
  border-radius: 50%;
}

.visual-family .visual-phone span:nth-child(1) {
  top: 48px;
  left: 26px;
  width: 26px;
  height: 26px;
}

.visual-family .visual-phone span:nth-child(2) {
  top: 46px;
  left: 64px;
  width: 32px;
  height: 32px;
  background: #fff0f5;
}

.visual-family .visual-phone span:nth-child(3) {
  top: 92px;
  left: 34px;
  width: 52px;
  height: 28px;
  border-radius: 999px;
}

.article-visual figcaption {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.65;
}

.article-points {
  margin: 22px 0;
  padding: 18px;
  background: #fff9fb;
  border: 1px solid var(--line);
  border-radius: 14px;
}

.points-label {
  margin: 0 0 12px;
  color: var(--deep);
  font-size: 14px;
  font-weight: 700;
}

.diagram {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 0;
}

.diagram div {
  padding: 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.diagram strong,
.diagram small,
.point-number {
  display: block;
}

.point-number {
  width: fit-content;
  margin-bottom: 10px;
  padding: 2px 8px;
  color: #fff;
  background: var(--red);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.diagram small {
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
}

.article-section {
  padding: 18px 0;
  border-top: 1px solid #f6dce4;
}

.notice {
  margin: 0 6vw 72px;
  padding: 28px;
  background: #fffafc;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 28px 6vw;
  color: #fff;
  background: var(--deep);
}

.site-footer a {
  margin-left: 16px;
  color: #fff;
}

@media (max-width: 900px) {
  .hero,
  .split,
  .info-grid,
  .column-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero h1 {
    font-size: 40px;
  }

  .quick-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 680px) {
  .site-header {
    align-items: flex-start;
    padding: 14px 5vw;
  }

  .nav-toggle {
    display: inline-flex;
    padding: 8px 10px;
    color: var(--red);
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
  }

  .site-nav {
    position: absolute;
    right: 5vw;
    top: 58px;
    display: none;
    flex-direction: column;
    width: 220px;
    padding: 14px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: var(--shadow);
  }

  .site-nav.open {
    display: flex;
  }

  .hero,
  .section,
  .article-view {
    padding-left: 5vw;
    padding-right: 5vw;
  }

  .hero h1 {
    font-size: 34px;
  }

  .quick-links,
  .diagram,
  .article-visual {
    grid-template-columns: 1fr;
  }

  .site-footer {
    flex-direction: column;
  }

  .site-footer a {
    display: block;
    margin: 8px 0 0;
  }
}