:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #5d687a;
  --subtle: #eef2f6;
  --line: #d9e0ea;
  --paper: #ffffff;
  --wash: #f7f9fc;
  --brand: #165d72;
  --brand-dark: #0f3d4d;
  --accent: #b2462d;
  --green: #2f6f58;
  --gold: #9a6a1f;
  --shadow: 0 18px 55px rgba(23, 32, 51, .12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, system-ui, sans-serif;
  line-height: 1.75;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(217, 224, 234, .85);
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(14px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1120px, calc(100% - 40px));
  min-height: 68px;
  margin: 0 auto;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--brand);
  color: white;
  font-size: .9rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: .92rem;
}

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

.button,
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 7px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 700;
  line-height: 1.2;
}

.button {
  background: var(--brand);
  color: #fff;
}

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

.page-shell {
  background: #faf7f2;
}

.page-shell .site-header {
  border-bottom-color: #e0d9cf;
  background: #fff;
  backdrop-filter: none;
}

.page-shell .nav {
  min-height: 56px;
}

.page-shell .brand-mark {
  background: #3ba9d9;
}

.page-shell .button {
  border-radius: 999px;
  background: #f5862e;
  box-shadow: 0 4px 14px rgba(245, 134, 46, .28);
}

.blog-hero {
  border-bottom: 1px solid #e0d9cf;
  background: #faf7f2;
}

.breadcrumb {
  width: min(640px, calc(100% - 40px));
  margin: 0 auto;
  padding: 18px 0 0;
  color: var(--muted);
  font-size: .82rem;
}

.breadcrumb a {
  color: var(--brand-dark);
  text-decoration: none;
}

.breadcrumb a::after {
  content: "/";
  margin: 0 8px;
  color: #a8b0bd;
}

.blog-hero-inner,
.blog-layout,
.blog-list,
.article-footer {
  width: min(640px, calc(100% - 40px));
  margin: 0 auto;
}

.blog-hero-inner {
  padding: 48px 0 42px;
  text-align: center;
}

.blog-hero h1 {
  max-width: 640px;
  margin-bottom: 18px;
  font-size: 2.1rem;
  font-weight: 900;
  line-height: 1.4;
}

.blog-hero p {
  max-width: 640px;
  margin-bottom: 0;
  color: #666;
  font-size: .95rem;
  line-height: 1.95;
}

.blog-list {
  display: grid;
  gap: 12px;
  padding: 28px 0 64px;
}

.blog-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  padding: 18px;
  border: 2px solid #e0d9cf;
  border-radius: 12px;
  background: #fff;
  text-decoration: none;
  box-shadow: none;
}

.blog-card:hover {
  border-color: #3ba9d9;
  background: #f0f9ff;
}

.blog-card h2 {
  margin-bottom: 8px;
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 1.45;
}

.blog-card p {
  margin-bottom: 12px;
  color: #666;
  font-size: .9rem;
}

.blog-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-size: .84rem;
}

.blog-alert {
  max-width: 640px;
  margin: 24px auto 0;
  padding: 20px 24px;
  border: 1.5px solid #fca5a5;
  border-radius: 14px;
  background: #fef2f2;
  text-align: left;
}

.blog-alert strong {
  display: block;
  margin-bottom: 8px;
  color: #9f1d1d;
}

.blog-alert ul {
  margin: 0;
  padding-left: 1.15rem;
  color: #7f1d1d;
  font-size: .88rem;
  line-height: 2.1;
}

.blog-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 18px;
}

.blog-hero-actions {
  margin-top: 28px;
}

.blog-hero-note {
  margin-top: 10px;
  color: #aaa;
  font-size: .78rem;
}

.blog-tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid #e0d9cf;
  background: #fff;
  color: #666;
  font-size: .83rem;
  font-weight: 700;
}

.blog-arrow {
  align-self: center;
  color: #2789b5;
  font-weight: 800;
}

.blog-layout {
  display: block;
  padding: 28px 0 64px;
}

.article {
  padding: 26px 24px;
  border: 1px solid #e0d9cf;
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 4px 24px rgba(0, 0, 0, .07);
}

.article h2 {
  margin: 38px 0 12px;
  font-size: 1.55rem;
  line-height: 1.45;
}

.article h3 {
  margin: 28px 0 8px;
  font-size: 1.12rem;
}

.article p,
.article li {
  color: #334155;
}

.article a {
  overflow-wrap: anywhere;
}

.article ul,
.article ol {
  padding-left: 1.35rem;
}

.article li + li {
  margin-top: 6px;
}

.article-lead {
  font-size: 1.06rem;
}

.note-box,
.cta-box,
.source-box {
  margin: 26px 0;
  padding: 20px;
  border-radius: 8px;
}

.note-box {
  border: 1px solid #f1d2a7;
  background: #fff8ed;
}

.cta-box {
  text-align: center;
  border: 1.5px solid #fed7aa;
  background: #fff7ed;
}

.cta-box h2,
.cta-box h3 {
  margin-top: 0;
}

.article .cta-box {
  text-align: left;
}

.article .cta-box .button {
  margin-top: 4px;
}

.source-box {
  border: 1px solid var(--line);
  background: #f8fafc;
  font-size: .92rem;
}

.related-links {
  display: grid;
  gap: 10px;
  margin: 30px 0;
  padding: 18px;
  border: 1px solid #e0d9cf;
  border-radius: 10px;
  background: #fff;
}

.related-links h2 {
  margin: 0 0 4px;
  font-size: 1.05rem;
}

.related-links a {
  color: var(--brand-dark);
  font-weight: 700;
  text-decoration: none;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 24px 0 8px;
}

.price-plan {
  padding: 18px;
  border: 1px solid #e0d9cf;
  border-radius: 10px;
  background: #fff;
}

.price-plan--featured {
  border-color: #f5862e;
  background: #fff7ed;
}

.price-plan h3 {
  margin: 12px 0 8px;
  font-size: 1.15rem;
}

.price-plan__amount {
  margin: 0 0 4px;
  color: var(--ink);
  font-size: 1.85rem;
  font-weight: 900;
  line-height: 1.1;
}

.price-plan__amount span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 700;
}

.price-plan__sub {
  color: var(--muted);
  font-size: .83rem;
}

.price-plan ul {
  margin: 14px 0 0;
  padding-left: 1.1rem;
  color: #334155;
  font-size: .88rem;
}

.article-aside {
  display: none;
}

.article-aside h2 {
  margin-bottom: 10px;
  font-size: 1rem;
}

.article-aside a {
  display: block;
  padding: 8px 0;
  color: var(--muted);
  text-decoration: none;
  font-size: .92rem;
}

.article-aside a:hover {
  color: var(--brand-dark);
}

.article-footer {
  padding: 0 0 72px;
}

.disclaimer {
  color: var(--muted);
  font-size: .84rem;
}

.faq-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.faq-list details {
  border: 1px solid #e0d9cf;
  border-radius: 10px;
  background: #fff;
}

.faq-list summary {
  cursor: pointer;
  padding: 15px 18px;
  font-weight: 800;
  color: var(--ink);
}

.faq-list p {
  margin: 0;
  padding: 0 18px 16px;
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(247, 249, 252, .98) 0%, rgba(247, 249, 252, .92) 48%, rgba(247, 249, 252, .34) 100%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1400' height='760' viewBox='0 0 1400 760'%3E%3Crect width='1400' height='760' fill='%23e8eef5'/%3E%3Cg opacity='.85'%3E%3Crect x='760' y='90' width='470' height='310' rx='10' fill='%23ffffff'/%3E%3Crect x='800' y='130' width='180' height='22' rx='4' fill='%23165d72'/%3E%3Crect x='800' y='176' width='365' height='12' rx='4' fill='%23cfd9e6'/%3E%3Crect x='800' y='208' width='310' height='12' rx='4' fill='%23cfd9e6'/%3E%3Crect x='800' y='256' width='95' height='72' rx='8' fill='%23f1f4f8'/%3E%3Crect x='920' y='256' width='95' height='72' rx='8' fill='%23f1f4f8'/%3E%3Crect x='1040' y='256' width='95' height='72' rx='8' fill='%23f1f4f8'/%3E%3Crect x='835' y='505' width='430' height='160' rx='10' fill='%23ffffff'/%3E%3Crect x='875' y='545' width='280' height='15' rx='4' fill='%23b2462d'/%3E%3Crect x='875' y='585' width='340' height='11' rx='4' fill='%23cfd9e6'/%3E%3Crect x='875' y='615' width='255' height='11' rx='4' fill='%23cfd9e6'/%3E%3C/g%3E%3C/svg%3E");
  background-size: cover;
  background-position: center;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(380px, 1.05fr);
  gap: 44px;
  width: min(1120px, calc(100% - 40px));
  min-height: 690px;
  margin: 0 auto;
  padding: 74px 0 56px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 18px;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, .84);
  color: var(--brand-dark);
  font-size: .82rem;
  font-weight: 700;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 20px;
  font-size: 4.45rem;
  line-height: 1.08;
  letter-spacing: 0;
}

.hero-lead {
  max-width: 640px;
  margin-bottom: 28px;
  color: #374151;
  font-size: 1.12rem;
}

.hero-actions,
.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 34px;
}

.point {
  min-height: 92px;
  padding: 14px;
  border: 1px solid rgba(217, 224, 234, .9);
  border-radius: 8px;
  background: rgba(255, 255, 255, .86);
}

.point strong {
  display: block;
  margin-bottom: 4px;
  color: var(--brand-dark);
  font-size: .95rem;
}

.point span {
  color: var(--muted);
  font-size: .86rem;
}

.mock-window {
  overflow: hidden;
  border: 1px solid rgba(217, 224, 234, .95);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.mock-topbar {
  display: flex;
  align-items: center;
  gap: 7px;
  height: 38px;
  padding: 0 14px;
  border-bottom: 1px solid var(--line);
  background: #f4f7fa;
}

.mock-dot {
  width: 9px;
  height: 9px;
  border-radius: 99px;
  background: #a8b4c2;
}

.mock-body {
  display: grid;
  grid-template-columns: 170px 1fr;
  min-height: 430px;
}

.mock-sidebar {
  border-right: 1px solid var(--line);
  background: #f8fafc;
  padding: 18px 14px;
}

.mock-side-item {
  height: 32px;
  margin-bottom: 9px;
  border-radius: 6px;
  background: #e7edf4;
}

.mock-side-item.active {
  background: var(--brand);
}

.mock-main {
  padding: 20px;
}

.mock-title {
  width: 54%;
  height: 22px;
  margin-bottom: 20px;
  border-radius: 4px;
  background: #213047;
}

.mock-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.mock-stat {
  min-height: 84px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 14px;
}

.mock-stat b,
.mock-line {
  display: block;
  height: 12px;
  border-radius: 4px;
  background: #cbd5e1;
}

.mock-stat b {
  width: 42%;
  height: 24px;
  margin-bottom: 14px;
  background: var(--brand);
}

.mock-table {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.mock-row {
  display: grid;
  grid-template-columns: 1.1fr .9fr .75fr;
  gap: 12px;
  padding: 13px;
  border-bottom: 1px solid var(--line);
}

.mock-row:last-child {
  border-bottom: 0;
}

.mock-line.short {
  width: 60%;
}

.mock-pill {
  width: 72px;
  height: 22px;
  border-radius: 999px;
  background: #dbeafe;
}

.section {
  padding: 78px 0;
}

.section.alt {
  background: var(--wash);
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.section-head {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-kicker {
  margin-bottom: 8px;
  color: var(--accent);
  font-size: .82rem;
  font-weight: 800;
}

h2 {
  margin-bottom: 12px;
  font-size: 2.45rem;
  line-height: 1.25;
  letter-spacing: 0;
}

.section-head p,
.lead {
  color: var(--muted);
  font-size: 1rem;
}

.grid-3,
.grid-2,
.value-grid {
  display: grid;
  gap: 18px;
}

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

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

.value-grid {
  grid-template-columns: 1.1fr .9fr;
  align-items: start;
}

.card {
  min-height: 100%;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.card h3 {
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.card p,
.card li {
  color: var(--muted);
}

.card ul {
  padding-left: 1.2rem;
  margin: 12px 0 0;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 20px;
}

.feature {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.feature-icon {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 7px;
  background: #e6f0f3;
  color: var(--brand-dark);
  font-weight: 900;
}

.feature strong {
  display: block;
  margin-bottom: 3px;
}

.feature span {
  color: var(--muted);
  font-size: .92rem;
}

.process {
  display: grid;
  gap: 14px;
}

.process-step {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.process-num {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: var(--brand);
  color: #fff;
  font-weight: 800;
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
}

.metric {
  min-height: 126px;
  padding: 20px;
  border-right: 1px solid var(--line);
}

.metric:last-child {
  border-right: 0;
}

.metric b {
  display: block;
  margin-bottom: 8px;
  color: var(--brand-dark);
  font-size: 1.7rem;
  line-height: 1.1;
}

.metric span {
  color: var(--muted);
  font-size: .9rem;
}

.cta {
  padding: 56px;
  border-radius: 8px;
  background: var(--brand-dark);
  color: #fff;
}

.cta p {
  color: rgba(255, 255, 255, .78);
}

.cta .button {
  background: #fff;
  color: var(--brand-dark);
}

.cta .button-secondary {
  border-color: rgba(255, 255, 255, .28);
  background: transparent;
  color: #fff;
}

.footer {
  padding: 34px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .9rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

@media (max-width: 900px) {
  .nav {
    min-height: auto;
    padding: 14px 0;
    align-items: flex-start;
  }

  .nav-links {
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 10px;
  }

  .hero-inner,
  .value-grid {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    min-height: auto;
    padding-top: 56px;
  }

  .hero-points,
  .grid-3,
  .grid-2,
  .feature-list,
  .metric-strip,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .metric {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

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

  .article-aside {
    position: static;
    order: -1;
  }

  .metric:last-child {
    border-bottom: 0;
  }

  h1 {
    font-size: 3.2rem;
  }

  .blog-hero h1 {
    font-size: 2.1rem;
  }

  h2 {
    font-size: 2.1rem;
  }
}

@media (max-width: 640px) {
  .nav,
  .container,
  .hero-inner,
  .blog-hero-inner,
  .blog-layout,
  .blog-list,
  .article-footer,
  .footer-inner {
    width: min(100% - 28px, 1120px);
  }

  .nav {
    display: block;
  }

  .nav-links {
    margin-top: 12px;
    justify-content: flex-start;
  }

  .hero-actions,
  .section-actions {
    display: grid;
  }

  .button,
  .button-secondary {
    width: 100%;
  }

  .blog-card {
    grid-template-columns: 1fr;
    padding: 20px;
  }

  .blog-arrow {
    align-self: start;
  }

  .article {
    padding: 24px 18px;
  }

  .mock-body {
    grid-template-columns: 1fr;
  }

  .mock-sidebar {
    display: none;
  }

  .mock-stats {
    grid-template-columns: 1fr;
  }

  .mock-row {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 58px 0;
  }

  .cta {
    padding: 28px;
  }

  h1 {
    font-size: 2.35rem;
  }

  .blog-hero h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  .footer-inner {
    display: block;
  }
}