:root {
  --color-navy: #15243b;
  --color-blue: #1d6fb8;
  --color-blue-dark: #0d4f8f;
  --color-blue-soft: #eaf5ff;
  --color-sky: #f4f9ff;
  --color-text: #243148;
  --color-muted: #64748b;
  --color-border: #d9e6f5;
  --color-white: #ffffff;
  --shadow-card: 0 18px 45px rgba(21, 36, 59, .10);
  --radius-lg: 28px;
  --radius-md: 20px;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-text);
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.8;
  letter-spacing: .02em;
  background: #f7fbff;
}

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

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

ul,
dl,
dd,
p,
h1,
h2,
h3 {
  margin: 0;
}

ul {
  padding: 0;
  list-style: none;
}

address {
  font-style: normal;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: -48px;
  z-index: 1000;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--color-navy);
  color: var(--color-white);
  transition: top .2s ease;
}

.skip-link:focus {
  top: 16px;
}

.container {
  width: min(var(--container), calc(100% - 40px));
  margin-inline: auto;
}

/* Header/navigation/footer are controlled by ../../assets/css/style.css to keep movement and alignment consistent with other pages. */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  line-height: 1.2;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}

.button-primary {
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-blue), var(--color-blue-dark));
  box-shadow: 0 12px 28px rgba(29, 111, 184, .24);
}

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

.button-secondary {
  color: var(--color-blue-dark);
  background: var(--color-white);
  border: 1px solid var(--color-border);
}

.case-hero {
  position: relative;
  overflow: hidden;
  padding: 70px 0 88px;
  background:
    radial-gradient(circle at 8% 8%, rgba(29, 111, 184, .16), transparent 30%),
    radial-gradient(circle at 88% 18%, rgba(87, 164, 229, .20), transparent 32%),
    linear-gradient(180deg, #f4f9ff 0%, #ffffff 100%);
}

.case-hero::after {
  content: "";
  position: absolute;
  right: -120px;
  bottom: -190px;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  border: 72px solid rgba(29, 111, 184, .07);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr);
  gap: 54px;
  align-items: center;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
  color: var(--color-muted);
  font-size: 13px;
}

.breadcrumb a {
  color: var(--color-blue-dark);
  font-weight: 700;
}

.section-label {
  color: var(--color-blue);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .16em;
}

.industry-badge {
  display: inline-flex;
  margin-top: 18px;
  margin-bottom: 18px;
  padding: 7px 14px;
  border-radius: 999px;
  color: var(--color-blue-dark);
  background: var(--color-blue-soft);
  font-size: 14px;
  font-weight: 800;
}

h1 {
  color: var(--color-navy);
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.28;
  letter-spacing: .01em;
}

.hero-lead {
  max-width: 760px;
  margin-top: 26px;
  color: #46566f;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 600;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.panel-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  background: rgba(255, 255, 255, .86);
  box-shadow: var(--shadow-card);
}

.panel-title {
  color: var(--color-navy);
  font-size: 18px;
  font-weight: 900;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.tag-list li,
.pill-grid span,
.cta-points span {
  display: inline-flex;
  align-items: center;
  border: 1px solid #cfe0f4;
  border-radius: 999px;
  padding: 8px 12px;
  color: var(--color-blue-dark);
  background: #f5faff;
  font-size: 13px;
  font-weight: 800;
}

.summary-list {
  display: grid;
  gap: 16px;
  margin-top: 26px;
}

.summary-list div {
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}

.summary-list dt {
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 800;
}

.summary-list dd {
  margin-top: 4px;
  color: var(--color-navy);
  font-weight: 900;
}

.section-block {
  padding: 88px 0;
}

.white-section {
  background: var(--color-white);
}

.section-heading {
  max-width: 720px;
}

.section-heading h2,
.cta-card h2 {
  margin-top: 8px;
  color: var(--color-navy);
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.35;
  letter-spacing: .01em;
}

.section-heading p:not(.section-label),
.cta-card > p {
  margin-top: 16px;
  color: var(--color-muted);
  font-weight: 600;
}

.center-heading {
  margin-inline: auto;
  text-align: center;
}

.overview-grid,
.result-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-top: 38px;
}

.overview-card,
.result-card,
.content-card,
.step-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-white);
  box-shadow: 0 10px 30px rgba(21, 36, 59, .07);
}

.overview-card {
  padding: 28px;
}

.overview-card span {
  color: var(--color-blue);
  font-size: 13px;
  font-weight: 900;
}

.overview-card h3,
.result-card h3,
.step-card h3,
.timeline-item h3 {
  margin-top: 10px;
  color: var(--color-navy);
  font-size: 20px;
  line-height: 1.45;
}

.overview-card p,
.result-card p,
.step-card p,
.timeline-item p,
.content-card p {
  margin-top: 12px;
  color: #506078;
  font-weight: 500;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(260px, .42fr) minmax(0, .58fr);
  gap: 58px;
  align-items: start;
}

.sticky-heading {
  position: sticky;
  top: 110px;
}

.content-card {
  padding: 34px;
}

.case-visual {
  overflow: hidden;
  margin: 0 0 28px;
  border: 1px solid var(--color-border);
  border-radius: 24px;
  background: linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
  box-shadow: 0 14px 34px rgba(21, 36, 59, .08);
}

.case-visual img {
  display: block;
  width: 100%;
  height: auto;
}

.support-visual {
  margin-bottom: 22px;
}

.accent-card {
  background: linear-gradient(180deg, #ffffff 0%, #f6fbff 100%);
}

.check-list {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.check-list li {
  position: relative;
  padding-left: 32px;
  color: #34435b;
  font-weight: 700;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .52em;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-blue-soft);
}

.check-list li::after {
  content: "";
  position: absolute;
  left: 6px;
  top: calc(.52em + 4px);
  width: 6px;
  height: 9px;
  border-right: 2px solid var(--color-blue);
  border-bottom: 2px solid var(--color-blue);
  transform: rotate(45deg);
}

.support-steps {
  display: grid;
  gap: 18px;
}

.step-card {
  position: relative;
  overflow: hidden;
  padding: 28px 28px 28px 90px;
}

.step-number,
.result-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-blue-dark);
  background: var(--color-blue-soft);
  font-weight: 900;
}

.step-number {
  position: absolute;
  left: 26px;
  top: 28px;
  width: 44px;
  height: 44px;
  border-radius: 16px;
}

.timeline {
  display: grid;
  gap: 16px;
  max-width: 900px;
  margin: 42px auto 0;
}

.timeline-item {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  background: #fbfdff;
}

.timeline-period {
  display: inline-flex;
  justify-content: center;
  border-radius: 999px;
  padding: 8px 12px;
  color: var(--color-white);
  background: var(--color-blue);
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
}

.note-text {
  margin-top: 18px;
  color: var(--color-muted);
  font-size: 13px;
  text-align: center;
}

.quote-box {
  margin-top: 28px;
  border-left: 4px solid var(--color-blue);
  border-radius: 0 18px 18px 0;
  padding: 20px 24px;
  background: #edf7ff;
}

.quote-box p {
  margin: 0;
  color: var(--color-navy);
  font-size: 18px;
  font-weight: 900;
}

.result-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.result-card {
  padding: 26px;
}

.result-icon {
  width: 44px;
  height: 44px;
  border-radius: 15px;
}

.message-band {
  margin-top: 34px;
  border-radius: var(--radius-md);
  padding: 28px;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-blue), var(--color-blue-dark));
  box-shadow: 0 14px 36px rgba(29, 111, 184, .24);
  text-align: center;
}

.message-band p {
  font-size: clamp(19px, 2.6vw, 28px);
  font-weight: 900;
  line-height: 1.5;
}

.support-message-section {
  color: var(--color-white);
  background:
    linear-gradient(135deg, rgba(21, 36, 59, .95), rgba(13, 79, 143, .94)),
    radial-gradient(circle at 85% 12%, rgba(255, 255, 255, .24), transparent 35%);
}

.support-message {
  display: grid;
  grid-template-columns: minmax(260px, .4fr) minmax(0, .6fr);
  gap: 58px;
}

.support-message .section-label,
.support-message h2,
.support-message p {
  color: var(--color-white);
}

.support-message h2 {
  margin-top: 8px;
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.35;
}

.support-message-body {
  display: grid;
  gap: 18px;
  font-weight: 600;
}

.pill-grid,
.cta-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.cta-section {
  padding: 96px 0;
  background: linear-gradient(180deg, #f4f9ff 0%, #eaf5ff 100%);
}

.cta-card {
  border: 1px solid var(--color-border);
  border-radius: 34px;
  padding: clamp(34px, 6vw, 62px);
  background: var(--color-white);
  box-shadow: var(--shadow-card);
  text-align: center;
}

.cta-card p {
  max-width: 760px;
  margin-inline: auto;
}

.center-actions {
  justify-content: center;
}

 (max-width: 980px) {
  .hero-grid,
  .two-column,
  .support-message {
    grid-template-columns: 1fr;
  }

  .sticky-heading {
    position: static;
  }

  .overview-grid,
  .result-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .container {
    width: min(100% - 28px, var(--container));
  }

  .case-hero {
    padding: 42px 0 60px;
  }

  .breadcrumb {
    margin-bottom: 24px;
  }

  .panel-card,
  .content-card,
  .cta-card {
    padding: 24px;
  }

  .case-visual {
    margin-bottom: 22px;
    border-radius: 18px;
  }

  .section-block,
  .cta-section {
    padding: 62px 0;
  }

  .overview-grid,
  .result-grid {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .timeline-period {
    justify-content: flex-start;
    width: fit-content;
  }

  .step-card {
    padding: 78px 22px 24px;
  }

  .step-number {
    left: 22px;
    top: 22px;
  }
}