.sp-route-body,
.sp-route-body * ,
.sp-route-body *::before,
.sp-route-body *::after {
  box-sizing: border-box;
}

.sp-route-body {
  margin: 0;
  font-family: "Inter", "Noto Sans JP", sans-serif;
  color: #102033;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.9), transparent 28%),
    linear-gradient(180deg, #f5f8fc 0%, #eef4f8 100%);
}

.sp-route-body a {
  color: inherit;
  text-decoration: none;
}

.sp-route-body img {
  display: block;
  max-width: 100%;
  height: auto;
}

.sp-site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(20px);
  background: rgba(245, 248, 252, 0.88);
  border-bottom: 1px solid rgba(16, 32, 51, 0.08);
}

.sp-header-inner,
.sp-footer-inner {
  width: min(1280px, calc(100% - 32px));
  margin: 0 auto;
}

.sp-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 78px;
}

.sp-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.sp-brand-mark {
  width: 168px;
  max-width: 100%;
}

.sp-brand-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sp-brand-name {
  font-size: 0.92rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.sp-brand-tagline {
  color: #5e7082;
  font-size: 0.76rem;
}

.sp-header-links {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.sp-header-links a:not(.sp-button) {
  color: #43556a;
  font-size: 0.95rem;
  font-weight: 600;
}

.sp-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sp-menu-button {
  display: none;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(16, 32, 51, 0.12);
  border-radius: 999px;
  background: #fff;
  color: #102033;
  cursor: pointer;
}

.sp-button,
.sp-button:visited {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-size: 0.94rem;
  font-weight: 700;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.sp-button:hover {
  transform: translateY(-1px);
}

.sp-button-primary {
  background: linear-gradient(135deg, var(--sp-accent-strong, #0f5eb8), var(--sp-accent, #1697b4));
  color: #fff;
  box-shadow: 0 18px 32px rgba(15, 94, 184, 0.2);
}

.sp-button-secondary {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(16, 32, 51, 0.12);
  color: #102033;
}

.sp-mobile-menu {
  position: fixed;
  inset: 78px 16px auto 16px;
  z-index: 39;
  display: none;
  padding: 20px;
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.97);
  border: 1px solid rgba(16, 32, 51, 0.08);
  box-shadow: 0 28px 56px rgba(16, 32, 51, 0.16);
}

.sp-mobile-menu.is-open {
  display: grid;
  gap: 12px;
}

.sp-mobile-menu a {
  font-weight: 700;
  padding: 10px 2px;
}

.sp-mobile-actions {
  display: grid;
  gap: 12px;
  padding-top: 8px;
}

.sp-page {
  --sp-accent: #168aad;
  --sp-accent-strong: #0f5eb8;
  --sp-accent-soft: #edf7fb;
  --sp-accent-faint: rgba(22, 138, 173, 0.12);
  --sp-page-bg: #f3f7fb;
  --sp-ink: #102033;
  --sp-muted: #58697b;
  --sp-border: rgba(16, 32, 51, 0.1);
  --sp-card: rgba(255, 255, 255, 0.9);
  --sp-shadow: 0 24px 48px rgba(16, 32, 51, 0.08);
  background:
    radial-gradient(circle at 12% 16%, rgba(255, 255, 255, 0.95), transparent 24%),
    radial-gradient(circle at 88% 8%, rgba(255, 255, 255, 0.75), transparent 18%),
    linear-gradient(180deg, var(--sp-page-bg) 0%, #ffffff 42%, var(--sp-page-bg) 100%);
}

.sp-shell {
  width: min(1280px, calc(100% - 32px));
  margin: 0 auto;
  padding: 36px 0 96px;
}

.sp-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 26px;
  align-items: stretch;
}

.sp-panel {
  background: var(--sp-card);
  border: 1px solid var(--sp-border);
  border-radius: 30px;
  box-shadow: var(--sp-shadow);
}

.sp-hero-copy {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 4vw, 42px);
}

.sp-hero-copy::before {
  content: "";
  position: absolute;
  inset: -30% auto auto -10%;
  width: 280px;
  height: 280px;
  border-radius: 999px;
  background: radial-gradient(circle, var(--sp-accent-faint), transparent 68%);
  pointer-events: none;
}

.sp-hero-copy > * {
  position: relative;
  z-index: 1;
}

.sp-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sp-accent-strong);
  background: var(--sp-accent-soft);
  border: 1px solid rgba(16, 32, 51, 0.05);
}

.sp-title {
  margin: 18px 0 18px;
  font-family: "Noto Serif JP", serif;
  font-size: clamp(2.15rem, 5vw, 4.2rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--sp-ink);
}

.sp-summary {
  margin: 0;
  color: var(--sp-muted);
  font-size: 1.07rem;
  line-height: 1.85;
}

.sp-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.sp-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--sp-border);
  color: #33465d;
  font-size: 0.84rem;
  font-weight: 700;
}

.sp-point-list {
  list-style: none;
  display: grid;
  gap: 14px;
  padding: 0;
  margin: 26px 0 0;
}

.sp-point-list li {
  position: relative;
  padding: 16px 18px 16px 54px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(16, 32, 51, 0.08);
  color: #23354a;
  line-height: 1.7;
}

.sp-point-list li::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 21px;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--sp-accent-strong), var(--sp-accent));
  box-shadow: 0 0 0 6px var(--sp-accent-faint);
}

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

.sp-hero-side {
  display: grid;
  gap: 18px;
}

.sp-hero-visual {
  overflow: hidden;
  padding: 16px;
}

.sp-hero-visual img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 22px;
  border: 1px solid rgba(16, 32, 51, 0.08);
  background: #e9f0f6;
}

.sp-hero-facts {
  padding: 24px;
}

.sp-fact-label {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sp-accent-strong);
}

.sp-fact-grid {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.sp-fact-card {
  padding: 16px 18px;
  border-radius: 18px;
  background: var(--sp-accent-soft);
  border: 1px solid rgba(16, 32, 51, 0.06);
}

.sp-fact-card strong {
  display: block;
  font-size: 1.02rem;
  color: #18334e;
  margin-bottom: 6px;
}

.sp-fact-card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: #4e6177;
}

.sp-quick-answer {
  margin-top: 24px;
  padding: 24px 28px;
}

.sp-quick-answer h2 {
  margin: 0 0 10px;
  font-size: 1.2rem;
  line-height: 1.4;
}

.sp-quick-answer p {
  margin: 0;
  color: var(--sp-muted);
  line-height: 1.85;
}

.sp-main-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  margin-top: 34px;
}

.sp-toc {
  position: sticky;
  top: 98px;
  padding: 22px;
}

.sp-toc h2 {
  margin: 0 0 12px;
  font-size: 0.92rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--sp-accent-strong);
}

.sp-toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.sp-toc a {
  display: block;
  padding: 10px 12px;
  border-radius: 16px;
  color: #42576e;
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1.45;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid transparent;
}

.sp-toc a:hover {
  border-color: var(--sp-border);
  background: var(--sp-accent-soft);
  color: var(--sp-accent-strong);
}

.sp-content {
  display: grid;
  gap: 22px;
}

.sp-section {
  padding: clamp(26px, 4vw, 36px);
  scroll-margin-top: 104px;
}

.sp-section-head {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  align-items: flex-end;
  margin-bottom: 18px;
}

.sp-section-label {
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--sp-accent-strong);
}

.sp-section h2 {
  margin: 0;
  font-size: clamp(1.55rem, 3vw, 2.25rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.sp-section-intro {
  margin: 0 0 18px;
  color: var(--sp-muted);
  line-height: 1.85;
}

.sp-rich > *:first-child {
  margin-top: 0;
}

.sp-rich p {
  margin: 0 0 16px;
  line-height: 1.92;
  color: #31455d;
}

.sp-rich ul,
.sp-rich ol {
  margin: 0 0 16px;
  padding-left: 1.3rem;
  color: #31455d;
}

.sp-rich li {
  margin-bottom: 8px;
  line-height: 1.78;
}

.sp-grid {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}

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

.sp-grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.sp-card {
  padding: 18px 18px 20px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(16, 32, 51, 0.08);
}

.sp-card h3 {
  margin: 0 0 10px;
  font-size: 1rem;
  line-height: 1.45;
}

.sp-card p {
  margin: 0;
  color: #53667b;
  line-height: 1.78;
}

.sp-card ul {
  margin: 10px 0 0;
  padding-left: 1.15rem;
  color: #53667b;
}

.sp-dual-checklist {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.sp-checklist-box {
  padding: 20px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid rgba(16, 32, 51, 0.08);
}

.sp-checklist-box h3 {
  margin: 0 0 12px;
  font-size: 1rem;
}

.sp-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.sp-checklist li {
  position: relative;
  padding-left: 28px;
  color: #3b5168;
  line-height: 1.7;
}

.sp-checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: -1px;
  color: var(--sp-accent-strong);
  font-weight: 800;
}

.sp-step-list {
  list-style: none;
  counter-reset: step;
  display: grid;
  gap: 14px;
  margin: 20px 0 0;
  padding: 0;
}

.sp-step-list li {
  position: relative;
  padding: 18px 18px 18px 66px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid rgba(16, 32, 51, 0.08);
  line-height: 1.75;
  color: #3b5168;
}

.sp-step-list li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 18px;
  top: 16px;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--sp-accent-strong), var(--sp-accent));
  color: #fff;
  font-size: 0.8rem;
  font-weight: 800;
}

.sp-table-wrap {
  margin-top: 20px;
  overflow-x: auto;
  border: 1px solid rgba(16, 32, 51, 0.08);
  border-radius: 24px;
}

.sp-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  background: #fff;
}

.sp-table thead th {
  background: var(--sp-accent-soft);
  color: #17324b;
  font-size: 0.86rem;
  font-weight: 800;
  text-align: left;
}

.sp-table th,
.sp-table td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(16, 32, 51, 0.08);
  vertical-align: top;
  line-height: 1.72;
}

.sp-table tbody tr:last-child td {
  border-bottom: 0;
}

.sp-callout {
  margin-top: 20px;
  padding: 18px 20px;
  border-radius: 22px;
  background: linear-gradient(135deg, var(--sp-accent-soft), rgba(255, 255, 255, 0.96));
  border: 1px solid rgba(16, 32, 51, 0.06);
  color: #28405a;
  line-height: 1.8;
}

.sp-faq {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.sp-faq details {
  padding: 18px 20px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid rgba(16, 32, 51, 0.08);
}

.sp-faq summary {
  cursor: pointer;
  font-weight: 800;
  line-height: 1.7;
  color: #19314b;
}

.sp-faq p {
  margin: 10px 0 0;
  color: #4c6178;
  line-height: 1.82;
}

.sp-link-group {
  display: grid;
  gap: 18px;
  margin-top: 20px;
}

.sp-link-group h3 {
  margin: 0;
  font-size: 1rem;
}

.sp-link-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.sp-link-card {
  display: block;
  padding: 18px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid rgba(16, 32, 51, 0.08);
  min-height: 164px;
}

.sp-link-card:hover {
  border-color: rgba(16, 32, 51, 0.15);
  transform: translateY(-1px);
}

.sp-link-type {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--sp-accent-soft);
  color: var(--sp-accent-strong);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.sp-link-card h4 {
  margin: 14px 0 10px;
  font-size: 0.98rem;
  line-height: 1.55;
}

.sp-link-card p {
  margin: 0;
  color: #53667b;
  font-size: 0.92rem;
  line-height: 1.76;
}

.sp-cta {
  margin-top: 20px;
  padding: clamp(26px, 4vw, 34px);
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.28), transparent 28%),
    linear-gradient(135deg, var(--sp-accent-strong), var(--sp-accent));
  color: #fff;
}

.sp-cta h2 {
  margin: 0 0 10px;
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  line-height: 1.25;
}

.sp-cta p {
  margin: 0;
  max-width: 760px;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.9;
}

.sp-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.sp-cta .sp-button-secondary {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.3);
  color: #fff;
}

.sp-site-footer {
  padding: 32px 0 44px;
  border-top: 1px solid rgba(16, 32, 51, 0.08);
  background: rgba(255, 255, 255, 0.78);
}

.sp-footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 28px;
  align-items: center;
  justify-content: space-between;
}

.sp-footer-copy {
  display: grid;
  gap: 6px;
  color: #5c6d7f;
  font-size: 0.88rem;
}

.sp-footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
}

.sp-footer-nav a {
  color: #405469;
  font-size: 0.9rem;
  font-weight: 700;
}

@media (max-width: 1100px) {
  .sp-hero {
    grid-template-columns: 1fr;
  }

  .sp-main-layout {
    grid-template-columns: 1fr;
  }

  .sp-toc {
    position: static;
  }
}

@media (max-width: 820px) {
  .sp-header-links,
  .sp-header-actions .sp-button {
    display: none;
  }

  .sp-menu-button {
    display: inline-flex;
  }

  .sp-grid-3,
  .sp-grid-2,
  .sp-dual-checklist,
  .sp-link-grid {
    grid-template-columns: 1fr;
  }

  .sp-shell,
  .sp-header-inner,
  .sp-footer-inner {
    width: min(1280px, calc(100% - 24px));
  }

  .sp-title {
    font-size: clamp(1.95rem, 9vw, 3.1rem);
  }

  .sp-section {
    padding: 24px 20px;
  }
}

@media (max-width: 560px) {
  .sp-brand-mark {
    width: 144px;
  }

  .sp-header-inner {
    min-height: 72px;
  }

  .sp-mobile-menu {
    inset: 72px 12px auto 12px;
  }

  .sp-shell {
    padding-top: 24px;
    padding-bottom: 72px;
  }

  .sp-hero-copy,
  .sp-hero-facts,
  .sp-quick-answer {
    padding-left: 20px;
    padding-right: 20px;
  }

  .sp-step-list li {
    padding-left: 58px;
  }

  .sp-cta-actions,
  .sp-hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .sp-button,
  .sp-button:visited {
    width: 100%;
  }
}