:root {
  --page-bg: #f4f3fa;
  --surface: #ffffff;
  --surface-alt: #f6f8ff;
  --line: #d7dcfb;
  --text: #2c3368;
  --muted: #646d98;
  --primary: #2d22f8;
  --primary-2: #4f63ff;
  --navy: #31315f;
  --shadow-soft: 0 18px 36px rgba(63, 72, 180, 0.1);
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: linear-gradient(180deg, #f8f8ff 0%, #f1f4ff 100%);
  color: var(--text);
  font-family: "Noto Sans JP", sans-serif;
}

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

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

.content-header {
  position: sticky;
  top: 18px;
  z-index: 20;
  padding: 18px 16px 0;
}

.content-header-shell,
.content-shell {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

.content-header-shell {
  min-height: 78px;
  padding: 15px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 8px 24px rgba(45, 34, 248, 0.08);
  backdrop-filter: blur(12px);
}

.content-brand img {
  display: block;
  width: 190px;
  height: 40px;
  object-fit: contain;
}

.content-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 15px;
  color: var(--navy);
}

.content-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
}

.content-main {
  padding: 56px 0 88px;
}

.content-hero {
  padding: 26px 0 34px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
  color: #7b82ad;
  font-size: 14px;
}

.breadcrumb span::before {
  content: "/";
  margin-right: 10px;
  color: #b0b7de;
}

.breadcrumb span:first-child::before {
  display: none;
}

.page-kicker {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(45, 34, 248, 0.08);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.content-hero h1,
.article-hero h1 {
  margin: 18px 0 0;
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1.18;
  letter-spacing: -0.04em;
}

.content-hero p,
.article-hero p {
  max-width: 860px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.95;
}

.content-grid {
  display: grid;
  grid-template-columns: 2.1fr 1fr;
  gap: 28px;
}

.content-card,
.content-aside,
.article-card,
.cta-box {
  padding: 32px;
  border: 1px solid rgba(45, 34, 248, 0.1);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-soft);
}

.content-card + .content-card,
.article-card + .article-card {
  margin-top: 22px;
}

.content-card h2,
.article-card h2 {
  margin: 0 0 16px;
  font-size: 30px;
  line-height: 1.35;
}

.content-card h3,
.article-card h3 {
  margin: 0 0 12px;
  font-size: 22px;
  line-height: 1.5;
}

.content-card p,
.content-card li,
.content-aside p,
.content-aside li,
.article-card p,
.article-card li {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.95;
}

.content-card ul,
.content-card ol,
.content-aside ul,
.article-card ul,
.article-card ol {
  margin: 16px 0 0;
  padding-left: 1.2rem;
}

.content-card figure,
.article-card figure {
  margin: 24px 0 0;
  overflow: hidden;
  border-radius: 22px;
}

.content-card figure img,
.article-card figure img {
  width: 100%;
  display: block;
}

.content-aside h3,
.cta-box h2 {
  margin: 0 0 14px;
  font-size: 24px;
}

.content-link-list,
.article-link-list {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.content-link,
.article-link {
  display: block;
  padding: 18px 20px;
  border-radius: 20px;
  border: 1px solid rgba(45, 34, 248, 0.1);
  background: var(--surface-alt);
}

.content-link strong,
.article-link strong {
  display: block;
  color: var(--text);
  font-size: 17px;
  line-height: 1.6;
}

.content-link span,
.article-link span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.cta-box {
  margin-top: 28px;
  background: linear-gradient(135deg, #2d22f8 0%, #455dff 100%);
  color: #fff;
}

.cta-box p {
  color: rgba(255, 255, 255, 0.88);
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.cta-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
}

.cta-actions .primary {
  background: #fff;
  color: var(--primary);
}

.cta-actions .secondary {
  border: 1px solid rgba(255, 255, 255, 0.42);
  color: #fff;
}

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

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-top: 30px;
}

.blog-card {
  padding: 28px 24px;
  border: 1px solid rgba(45, 34, 248, 0.1);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-soft);
}

.blog-card h2,
.blog-card h3 {
  margin: 0;
  font-size: 22px;
  line-height: 1.55;
}

.blog-card p {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.9;
}

.blog-card a {
  display: inline-flex;
  margin-top: 18px;
  color: var(--primary);
  font-weight: 700;
}

.company-note {
  margin-top: 18px;
  color: #7b82ad;
  font-size: 14px;
  line-height: 1.8;
}

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

.content-footer-shell {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
  padding: 28px 32px;
  border-top: 1px solid rgba(45, 34, 248, 0.1);
  color: #7b82ad;
  font-size: 14px;
}

@media (max-width: 1024px) {
  .content-grid,
  .blog-grid {
    grid-template-columns: 1fr;
  }

  .list-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767px) {
  .content-header-shell {
    min-height: auto;
    padding: 16px 18px;
    flex-direction: column;
    align-items: flex-start;
  }

  .content-nav {
    flex-wrap: wrap;
    gap: 12px 16px;
    font-size: 14px;
  }

  .content-main {
    padding: 34px 0 64px;
  }

  .content-hero h1,
  .article-hero h1 {
    font-size: 2rem;
  }

  .content-hero p,
  .article-hero p,
  .seo-section-lead {
    font-size: 16px;
    line-height: 1.85;
  }

  .content-card,
  .content-aside,
  .article-card,
  .cta-box,
  .blog-card {
    padding: 22px 18px;
  }

  .cta-actions {
    flex-direction: column;
  }

  .cta-actions a,
  .content-cta {
    width: 100%;
  }
}