:root {
  --color-text: #222;
  --color-subtext: #666;
  --color-border: #dddddd;
  --color-bg: #ffffff;
  --color-bg-sub: #f7f7f7;
  --color-accent: #111111;
  --color-link: #0b57d0;
  --container-width: 960px;
  --transition: 0.25s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  color: var(--color-text);
  background: var(--color-bg);
  font-family: "Noto Sans JP", sans-serif;
  line-height: 1.8;
  -webkit-text-size-adjust: 100%;
}

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

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

a:hover {
  text-decoration: underline;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-main {
  flex: 1;
}

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

.site-header {
  padding: 40px 0 24px;
  border-bottom: 1px solid var(--color-border);
  background: #fff;
}

.site-header__inner {
  display: flex;
  justify-content: center;
  align-items: center;
}

.site-logo {
  width: min(280px, 80vw);
  height: auto;
}

.notice-hero {
  padding: 56px 0 32px;
}

.notice-card {
  padding: 40px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: #fff;
}

.notice-label {
  margin: 0 0 10px;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-subtext);
}

.notice-title {
  margin: 0 0 24px;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  line-height: 1.4;
  font-weight: 700;
  text-align: center;
}

.notice-lead {
  margin: 0 0 16px;
  font-size: 1.0625rem;
}

.notice-text {
  margin: 0;
  color: var(--color-subtext);
}

.cta-area {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.cta-button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 56px;
  padding: 14px 28px;
  border-radius: 9999px;
  background: var(--color-accent);
  color: #fff;
  font-weight: 700;
  text-align: center;
  transition: opacity var(--transition), transform var(--transition);
}

.cta-button:hover {
  opacity: 0.88;
  text-decoration: none;
  transform: translateY(-1px);
}

.cta-note {
  margin: 12px 0 0;
  font-size: 0.9375rem;
  color: var(--color-subtext);
  word-break: break-all;
}

.content-section {
  padding: 0 0 64px;
}

.content-block {
  padding: 0;
}

.section-title {
  margin: 0 0 20px;
  font-size: 1.5rem;
  font-weight: 700;
}

.message-box {
  margin-bottom: 28px;
  padding: 20px 24px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-bg-sub);
}

.message-box p {
  margin: 0;
}

.message-box p + p {
  margin-top: 8px;
}

.accordion {
  border-top: 1px solid var(--color-border);
}

.accordion-item {
  border-bottom: 1px solid var(--color-border);
}

.accordion-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 22px 0;
  border: 0;
  background: transparent;
  color: var(--color-text);
  font: inherit;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
}

.accordion-icon {
  position: relative;
  flex: 0 0 20px;
  width: 20px;
  height: 20px;
}

.accordion-icon::before,
.accordion-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 16px;
  height: 2px;
  background: var(--color-text);
  transform: translate(-50%, -50%);
  transition: transform var(--transition), opacity var(--transition);
}

.accordion-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.accordion-item.is-open .accordion-icon::after {
  opacity: 0;
}

.accordion-body {
  padding: 0 0 28px;
}

.accordion-content p,
.accordion-content h3 {
  margin: 0;
}

.accordion-content p + p,
.accordion-content p + h3,
.accordion-content h3 + p,
.accordion-content .table-wrap,
.accordion-content .text-right {
  margin-top: 18px;
}

.accordion-content h3 {
  font-size: 1rem;
  font-weight: 700;
}

.table-wrap {
  overflow-x: auto;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--color-border);
}

.info-table th,
.info-table td {
  padding: 14px 16px;
  border: 1px solid var(--color-border);
  vertical-align: top;
  text-align: left;
}

.info-table th {
  width: 30%;
  background: #fafafa;
  font-weight: 700;
}

.text-right {
  text-align: right;
}

.text-link {
  color: var(--color-link);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.text-link--large {
  display: inline-block;
  font-size: 1.0625rem;
  font-weight: 700;
}

.bottom-link-area {
  margin-top: 32px;
  text-align: center;
}

.site-footer {
  padding: 24px 0 32px;
  border-top: 1px solid var(--color-border);
}

.copyright {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-subtext);
  text-align: center;
}

@media (max-width: 767px) {
  .site-header {
    padding: 28px 0 20px;
  }

  .notice-hero {
    padding: 32px 0 24px;
  }

  .notice-card {
    padding: 28px 20px;
    border-radius: 10px;
  }

  .notice-title {
    margin-bottom: 18px;
  }

  .accordion-header {
    padding: 18px 0;
    font-size: 0.95rem;
  }

  .info-table th,
  .info-table td {
    padding: 12px;
  }

  .info-table th {
    width: 36%;
  }
}