:root {
  --ink: #17211d;
  --muted: #66716c;
  --paper: #f7f8f5;
  --white: #ffffff;
  --forest: #00aee5;
  --forest-light: #008fbe;
  --lime: #ffffff;
  --line: #d9e7ec;
  --shadow: 0 18px 44px rgba(0, 151, 201, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Yu Gothic", "YuGothic", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.site-header {
  background: var(--white);
  border-bottom: 1px solid rgba(23, 33, 29, 0.08);
}

.header-inner,
.hero-inner,
.content-wrap,
.footer-inner {
  width: min(1080px, calc(100% - 48px));
  margin: 0 auto;
}

.header-inner {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  color: var(--forest);
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.04em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50% 50% 50% 10%;
  color: var(--white);
  background: linear-gradient(145deg, #00aee5, #009dce);
  font-size: 14px;
}

.header-label {
  color: var(--muted);
  font-family: Arial, sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
}

.hero {
  position: relative;
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(circle at 86% 20%, rgba(255, 255, 255, 0.22), transparent 27%),
    linear-gradient(132deg, #008dbb 0%, #00aee5 68%, #3bc4ee 100%);
}

.hero::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -120px;
  width: 380px;
  height: 380px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 50%;
  box-shadow: 0 0 0 54px rgba(255, 255, 255, 0.025), 0 0 0 108px rgba(255, 255, 255, 0.018);
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding: 32px 0 72px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 54px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 12px;
}

.breadcrumb a {
  text-underline-offset: 4px;
}

.eyebrow {
  margin: 0 0 15px;
  color: var(--lime);
  font-family: Arial, sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
}

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

h1 {
  max-width: 780px;
  margin-bottom: 31px;
  font-size: clamp(30px, 5vw, 50px);
  line-height: 1.35;
  letter-spacing: 0.035em;
}

.published-date {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 0;
  font-size: 14px;
}

.published-date-label {
  padding: 2px 10px;
  color: #007ea9;
  background: var(--white);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.notice-section {
  padding: 92px 0 104px;
}

.notice-intro {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 28px;
  margin-bottom: 48px;
}

.section-number {
  margin: 0;
  color: var(--forest);
  font-family: Arial, sans-serif;
  font-size: 56px;
  font-weight: 700;
  line-height: 1;
  opacity: 0.18;
}

.notice-intro h2,
.contact-inner h2 {
  margin-bottom: 14px;
  font-size: clamp(24px, 3.5vw, 34px);
  line-height: 1.45;
  letter-spacing: 0.04em;
}

.notice-intro p:last-child {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--muted);
}

.document-list {
  display: grid;
  gap: 16px;
}

.document-card {
  display: grid;
  grid-template-columns: 58px 1fr auto;
  align-items: center;
  gap: 22px;
  min-height: 108px;
  padding: 22px 28px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--white);
  box-shadow: 0 4px 0 transparent;
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.document-card:hover,
.document-card:focus-visible {
  border-color: rgba(18, 63, 51, 0.45);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.document-card:focus-visible {
  outline: 3px solid rgba(183, 206, 71, 0.55);
  outline-offset: 3px;
}

.document-icon {
  display: grid;
  place-items: center;
  width: 50px;
  height: 58px;
  color: var(--forest);
  background: #e8f8fd;
  border-radius: 2px;
  font-family: Arial, sans-serif;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.document-meta {
  min-width: 0;
}

.document-number {
  display: block;
  margin-bottom: 3px;
  color: var(--forest-light);
  font-family: Arial, sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.document-title {
  display: block;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.025em;
}

.document-action {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--forest);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.document-action::after {
  content: "↗";
  font-size: 18px;
  font-weight: 400;
}

.note {
  display: flex;
  gap: 13px;
  align-items: flex-start;
  margin-top: 28px;
  padding: 18px 20px;
  color: var(--muted);
  background: #edf7fa;
  font-size: 13px;
}

.note p {
  margin-bottom: 0;
}

.note-icon {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 21px;
  height: 21px;
  border: 1px solid #8b9892;
  border-radius: 50%;
  font-family: Georgia, serif;
  font-size: 12px;
  font-weight: 700;
}

.contact-section {
  color: var(--white);
  background: linear-gradient(135deg, #008fbf, #00aee5);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: center;
  gap: 64px;
  padding-top: 58px;
  padding-bottom: 58px;
}

.eyebrow-dark {
  margin-bottom: 8px;
}

.contact-inner h2,
.contact-inner p {
  margin-bottom: 0;
}

.contact-inner > p {
  color: rgba(255, 255, 255, 0.76);
  white-space: pre-line;
}

.site-footer {
  padding: 31px 0;
  color: #85918c;
  background: #073445;
  font-size: 11px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

.footer-inner p {
  margin-bottom: 0;
}

@media (max-width: 720px) {
  .header-inner,
  .hero-inner,
  .content-wrap,
  .footer-inner {
    width: min(100% - 32px, 1080px);
  }

  .header-inner {
    min-height: 70px;
  }

  .header-label {
    display: none;
  }

  .hero-inner {
    padding-top: 24px;
    padding-bottom: 56px;
  }

  .breadcrumb {
    margin-bottom: 38px;
  }

  .notice-section {
    padding: 64px 0 72px;
  }

  .notice-intro {
    grid-template-columns: 1fr;
    gap: 6px;
    margin-bottom: 34px;
  }

  .section-number {
    font-size: 40px;
  }

  .document-card {
    grid-template-columns: 46px 1fr;
    gap: 16px;
    padding: 19px 18px;
  }

  .document-icon {
    width: 44px;
    height: 52px;
    font-size: 10px;
  }

  .document-action {
    grid-column: 2;
    justify-self: start;
  }

  .contact-inner {
    grid-template-columns: 1fr;
    gap: 20px;
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}