@charset "utf-8";

:root {
  --primary: #1a3c5e;
  --primary-dark: #122b44;
  --subtle: #eef3f8;
  --bg: #f7f8fa;
  --text: #333333;
  --muted: #666666;
  --border: #d9dde2;
  --white: #ffffff;
  --danger-bg: #fff5f2;
  --danger-border: #f0d2c7;
  --warn-bg: #fff9f3;
  --warn-border: #ecd9b9;
  --max-width: 920px;
  --header-width: 1100px;
  /* 繰り返し使う色 */
  --box-border: #d9e4ef;
  --subtle-border: #d4dde8;
  --card-bg: #fafbfc;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Noto Sans JP", "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.85;
}

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

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

main {
  padding: 40px 0 72px;
}

section.page-photo-slot {
  padding: 0 0 24px;
}

.photo-frame {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: #e9edf2;
  aspect-ratio: 16 / 9;
}

.photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

section {
  padding: 50px 0;
}

h1,
h2,
h3,
h4,
h5,
h6,
p,
ul,
ol {
  margin-top: 0;
}

p {
  margin-bottom: 16px;
}

ul,
ol {
  margin-bottom: 18px;
  padding-left: 1.4em;
}

li {
  margin-bottom: 8px;
}

.container {
  width: 92%;
  max-width: var(--max-width);
  margin: 0 auto;
}

header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  width: 92%;
  max-width: var(--header-width);
  margin: 0 auto;
  padding: 18px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.site-title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
}

.site-title a {
  color: var(--primary);
  text-decoration: none;
}

nav ul,
.header-nav ul {
  list-style: none;
  display: flex;
  gap: 18px;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

nav a,
.header-nav a {
  color: var(--text);
  font-size: 0.95rem;
}

.hero,
.article-hero {
  background: var(--primary);
  color: var(--white);
  padding: 56px 0 46px;
}

.breadcrumb {
  font-size: 0.9rem;
  margin-bottom: 14px;
  color: rgba(255, 255, 255, 0.88);
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.92);
}

.category,
.article-category,
.hero-label,
.column-category {
  display: inline-block;
  font-size: 0.85rem;
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.category,
.article-category,
.hero-label {
  background: rgba(255, 255, 255, 0.15);
  color: var(--white);
}

.column-category {
  background: var(--subtle);
  border: 1px solid var(--subtle-border);
  color: var(--primary);
  margin-bottom: 12px;
  font-size: 0.82rem;
  padding: 5px 10px;
}

.hero h1,
.article-hero h1 {
  margin: 0 0 14px;
  font-size: 2rem;
  line-height: 1.5;
}

.hero-target {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.85);
  margin: 0 0 10px;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.hero p,
.article-hero p {
  margin: 0;
  color: rgba(255, 255, 255, 0.92);
}

.hero-proof {
  background: #f3f7fb;
  border-bottom: 1px solid var(--box-border);
  padding: 14px 0;
}

.hero-proof-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.hero-proof-list li {
  background: var(--white);
  border: 1px solid var(--box-border);
  border-radius: 999px;
  padding: 10px 14px;
  text-align: center;
  font-size: 0.92rem;
  color: var(--primary);
  font-weight: 600;
}

.article-meta,
.column-meta {
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.92rem;
}

.column-meta {
  color: var(--muted);
  margin-bottom: 12px;
  font-size: 0.86rem;
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.article,
.content-card,
.page-card,
.policy-card,
.article-card,
article.article-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 34px 28px;
}

.lead {
  font-size: 1.03rem;
  margin-bottom: 28px;
}

.intro {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px 24px;
  margin-bottom: 28px;
}

.intro h2 {
  margin: 0 0 14px;
  font-size: 1.3rem;
  color: var(--primary);
  border: 0;
  padding: 0;
}

.filter-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.filter-links a {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--subtle);
  border: 1px solid var(--subtle-border);
  color: var(--primary);
  font-size: 0.92rem;
}

.filter-links a:hover {
  background: #e5edf6;
  text-decoration: none;
}

h2,
.section-title,
article h2 {
  font-size: 1.35rem;
  margin: 38px 0 14px;
  padding-left: 12px;
  border-left: 5px solid var(--primary);
  line-height: 1.5;
}

article h3,
.article h3,
.article-card h3 {
  font-size: 1.12rem;
  margin: 28px 0 12px;
  color: var(--primary-dark);
}

.toc {
  background: var(--subtle);
  border: 1px solid var(--subtle-border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 32px;
}

.toc h2,
.toc-title {
  margin: 0 0 12px;
  font-size: 1rem;
  color: var(--primary);
  border: 0;
  padding: 0;
  font-weight: 700;
}

.toc ol {
  margin: 0;
  padding-left: 1.4em;
}

.toc li {
  margin-bottom: 8px;
}

.box,
.point-box,
.note-box,
.notice,
.result-box,
.quote-box {
  border-radius: 8px;
  padding: 20px;
  margin: 22px 0;
}

.box,
.point-box,
.note-box,
.result-box {
  background: #f3f7fb;
  border: 1px solid var(--box-border);
}

.notice {
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
}

.alert,
.highlight {
  background: var(--danger-bg);
  border: 1px solid var(--danger-border);
  border-radius: 8px;
  padding: 20px;
  margin: 24px 0;
}

.quote-box {
  background: var(--card-bg);
  border: 1px solid var(--border);
}

.box-title {
  margin: 0 0 10px;
  font-weight: 700;
  color: var(--primary);
}

.cta,
.cta-box {
  background: var(--subtle);
  border: 1px solid var(--subtle-border);
  border-radius: 8px;
  padding: 22px;
  margin-top: 34px;
}

.cta h2,
.cta-box h2,
.point-box h2,
.result-box h2,
.related-links h2 {
  margin-top: 0;
}

.mini-consent,
.date-block {
  color: var(--muted);
  font-size: 0.95rem;
}

.date-block {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.table-wrap {
  overflow-x: auto;
  margin: 18px 0 24px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
}

th,
td {
  border: 1px solid var(--border);
  padding: 14px 12px;
  text-align: left;
  vertical-align: top;
}

th {
  width: 28%;
  background: var(--subtle);
  color: var(--primary);
  font-weight: 700;
}

.form-placeholder {
  margin-top: 24px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card-bg);
  padding: 26px 20px;
  text-align: center;
}

.embed-guide {
  margin-top: 20px;
}

.embed-guide ul {
  margin-bottom: 0;
}

.form-embed-shell {
  margin-top: 18px;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: var(--white);
}

.form-embed-header {
  padding: 14px 18px;
  background: var(--subtle);
  border-bottom: 1px solid var(--border);
  color: var(--primary);
  font-weight: 700;
  text-align: left;
}

.form-embed-body {
  padding: 18px;
  text-align: left;
}

.form-embed-frame {
  width: 100%;
  min-height: 960px;
  border: 0;
  display: block;
  background: #fafbfc;
}

.form-embed-note {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.94rem;
}

.field-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 18px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.field-list li {
  margin: 0;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card-bg);
}

.code-box {
  text-align: left;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  overflow-x: auto;
  font-family: Consolas, Monaco, monospace;
  font-size: 0.92rem;
  line-height: 1.7;
  color: #222;
}

.btn-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.btn {
  display: inline-block;
  padding: 12px 18px;
  border-radius: 6px;
  font-weight: 700;
  text-decoration: none;
}

.btn-primary,
.btn:not(.btn-secondary) {
  background: var(--primary);
  color: var(--white);
}

.btn-primary:hover,
.btn:not(.btn-secondary):hover {
  background: var(--primary-dark);
  text-decoration: none;
}

.btn-secondary {
  background: var(--white);
  color: var(--primary);
  border: 1px solid var(--primary);
}

.btn-secondary:hover {
  background: #f9fbfd;
  text-decoration: none;
}

.cards {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.card {
  flex: 1;
  min-width: 250px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
}

.column-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.column-card,
.article-card {
  display: flex;
  flex-direction: column;
  min-height: 250px;
}

.column-card p {
  margin-bottom: 16px;
  color: var(--muted);
  font-size: 0.96rem;
  flex-grow: 1;
}

.theme-links-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-bottom: 24px;
}

.theme-links-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px;
  background: #fcfdff;
}

.theme-links-card h3 {
  margin-top: 0;
  margin-bottom: 10px;
}

.theme-links-list {
  margin: 0 0 14px;
  padding-left: 18px;
}

.theme-links-list li {
  margin-bottom: 8px;
}

.read-more {
  margin-top: auto;
  font-weight: 700;
}

.case,
.media-item {
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}

.related,
.related-links {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.related ul,
.related-links ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.related li,
.related-links li {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  margin: 0;
}

.related-lead {
  margin: 8px 0 14px;
  color: var(--muted);
  font-size: 0.95rem;
}

footer {
  background: var(--primary);
  color: var(--white);
  text-align: center;
  padding: 30px 0;
}

footer p {
  margin: 4px 0;
  font-size: 0.95rem;
}

footer a {
  color: var(--white);
}

/* ── FAQ ── */
.faq-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 28px 0 40px;
}

.faq-nav a {
  padding: 6px 16px;
  border-radius: 20px;
  border: 1px solid var(--primary);
  color: var(--primary);
  font-size: 0.88rem;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.faq-nav a:hover {
  background: var(--primary);
  color: #fff;
}

.faq-section {
  margin-top: 48px;
  scroll-margin-top: 24px;
}

.faq-section:first-of-type {
  margin-top: 0;
}

details.faq-item {
  border: 1px solid var(--box-border);
  border-radius: 8px;
  margin: 10px 0;
  background: #fff;
  overflow: hidden;
}

details.faq-item[open] {
  border-color: #a8bfd4;
  box-shadow: 0 2px 8px rgba(26, 60, 94, 0.07);
}

details.faq-item > summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 20px;
  font-weight: 700;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  user-select: none;
  line-height: 1.6;
}

details.faq-item > summary::-webkit-details-marker {
  display: none;
}

details.faq-item > summary::after {
  content: "＋";
  flex-shrink: 0;
  margin-left: auto;
  padding-left: 12px;
  color: var(--primary);
  font-size: 1.1rem;
  font-weight: 400;
  padding-top: 2px;
}

details.faq-item[open] > summary::after {
  content: "－";
}

.faq-q-badge,
.faq-a-badge {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 700;
  margin-top: 2px;
}

.faq-q-badge {
  background: var(--primary);
  color: #fff;
}

.faq-a-badge {
  background: var(--subtle);
  color: var(--primary);
}

.faq-q-text {
  flex: 1;
}

.faq-answer {
  padding: 14px 20px 18px 20px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  border-top: 1px solid var(--subtle);
  background: #fafcff;
}

.faq-answer-text {
  flex: 1;
  line-height: 1.8;
  padding-top: 2px;
}

.faq-answer-text a {
  color: var(--primary);
  text-decoration: underline;
}

@media (max-width: 960px) {
  .hero-proof-list {
    grid-template-columns: 1fr 1fr;
  }

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

  .theme-links-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  nav ul,
  .header-nav ul {
    gap: 12px 16px;
  }

  .hero h1,
  .article-hero h1 {
    font-size: 1.55rem;
  }

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

  .article,
  .content-card,
  .page-card,
  .policy-card,
  .article-card,
  article.article-card,
  .column-card,
  .intro,
  .cta,
  .cta-box {
    padding: 24px 18px;
  }

  h2,
  .section-title,
  article h2 {
    font-size: 1.18rem;
  }

  th,
  td {
    padding: 12px 10px;
  }

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

  .cards {
    flex-direction: column;
  }

  .photo-frame {
    aspect-ratio: 4 / 3;
  }

  .form-embed-frame {
    min-height: 1100px;
  }

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

  details.faq-item > summary {
    padding: 14px 16px;
  }

  .faq-answer {
    padding: 12px 16px 16px;
  }

  .faq-nav a {
    font-size: 0.82rem;
    padding: 5px 12px;
  }
}