* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Tahoma, Verdana, Arial, sans-serif;
  font-size: 13px;
  line-height: 1.55;
  color: #fff;
  background: #000;
  background-attachment: fixed;
  scrollbar-face-color: #000;
  scrollbar-arrow-color: #fff;
  scrollbar-track-color: #dcebd6;
  scrollbar-shadow-color: #516145;
  scrollbar-highlight-color: #c5d0c1;
  scrollbar-3dlight-color: #c5d0c1;
  scrollbar-darkshadow-color: #cfcfcf;
}

a {
  color: #fff;
}

a:visited {
  color: #c0c0c0;
}

a:active,
a:hover {
  color: #00ffff;
}

.container {
  max-width: 820px;
  margin: 0 auto;
  padding: 18px 22px;
}

.header {
  padding: 20px 0 12px;
  margin-bottom: 24px;
  text-align: center;
}

.header .container {
  border-bottom: 1px solid #777;
}

.site-logo {
  display: block;
  width: min(760px, 92vw);
  height: auto;
  margin: 0 auto 8px;
}

.blog-subtitle {
  color: #c0c0c0;
  font-size: 0.82rem;
}

.blog-subtitle {
  margin-bottom: 18px;
}

.header a {
  color: inherit;
}

.nav-link {
  display: inline-block;
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0 14px 16px;
  text-decoration: underline;
}

.nav-link:hover {
  color: #00ffff;
}

.portal {
  text-align: center;
}

.marquee-line {
  max-width: 766px;
  margin: 18px auto;
  color: #fff;
  font-size: 1rem;
}

.site-note {
  margin: 26px auto;
  color: #c0c0c0;
  font-size: 0.85rem;
  text-align: center;
}

.site-note a {
  color: #ffff00;
}

.portal-table,
.section-page {
  max-width: 766px;
  margin: 0 auto 34px;
  text-align: left;
}

.portal-table {
  border-top: 1px solid #777;
  border-bottom: 1px solid #777;
}

.portal-table h3,
.section-page h1 {
  margin: 18px 0;
  color: #ffff00;
  font-size: 1.25rem;
}

.section-page h2 {
  margin: 22px 0 10px;
  color: #00d878;
  font-size: 1.2rem;
}

.section-page h3 {
  margin: 24px 0 12px;
  color: #ffff00;
  font-size: 1rem;
}

.section-row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 18px;
  padding: 12px 0;
  border-top: 1px solid #333;
  font-size: 0.9rem;
}

.section-row a {
  color: #ffff00;
  font-weight: 700;
}

.section-row span,
.section-page p,
.section-page li {
  color: #fff;
  font-size: 0.9rem;
  font-weight: 400;
}

.section-page p {
  margin-bottom: 18px;
  text-align: justify;
  text-indent: 2.5em;
}

.section-page .campaign-intro,
.section-page .post-date {
  text-indent: 0;
}

.section-page ul {
  margin: 0 0 28px 38px;
}

.section-page li {
  margin-bottom: 10px;
}

.session-report {
  padding-bottom: 24px;
}

.blog-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.blog-card {
  padding: 20px 0 24px;
  border-bottom: 1px solid #555;
}

.post-title {
  color: #ffff00;
  font-size: 1.35rem;
  margin-bottom: 10px;
  line-height: 1.2;
  font-weight: 700;
}

.post-title a {
  color: #ffff00;
}

.post-title a:hover {
  color: #00ffff;
}

.post-date {
  display: block;
  color: #c0c0c0;
  font-size: 0.78rem;
  margin-bottom: 14px;
  font-weight: 700;
}

.post-excerpt {
  color: #fff;
  margin-bottom: 14px;
  line-height: 1.6;
  font-size: 0.95rem;
  text-align: justify;
}

.read-more {
  display: inline-block;
  color: #fff;
  font-size: 0.86rem;
  font-weight: 700;
}

.read-more:hover {
  color: #00ffff;
}

.blog-post {
  padding-bottom: 36px;
}

.back-link {
  display: inline-block;
  color: #fff;
  margin-bottom: 28px;
  font-size: 0.82rem;
  font-weight: 700;
}

.back-link:hover {
  color: #00ffff;
}

.blog-post .post-title {
  color: #ffff00;
  font-size: 1.7rem;
  margin-bottom: 14px;
  font-weight: 700;
  line-height: 1.1;
}

.blog-post .post-date {
  margin-bottom: 28px;
}

.post-content {
  color: #fff;
  font-size: 0.9rem;
  font-weight: 400;
  line-height: 1.7;
  text-align: justify;
}

.post-content p {
  margin-bottom: 18px;
  text-indent: 2.5em;
}

.post-content h2 {
  margin-top: 32px;
  margin-bottom: 16px;
  color: #ffff00;
  font-size: 1.1rem;
  font-weight: 700;
}

.post-content ul,
.post-content ol {
  margin-left: 40px;
  margin-bottom: 25px;
}

.post-content li {
  margin-bottom: 10px;
  font-weight: 400;
}

.post-content li::marker {
  color: #ffff00;
}

.not-found {
  padding: 60px 24px;
  text-align: center;
}

.not-found h1 {
  color: #ffff00;
  margin-bottom: 24px;
  font-size: 1.8rem;
  font-weight: 700;
}

@media (max-width: 768px) {
  .container {
    padding: 14px;
  }

  .site-logo {
    width: min(520px, 96vw);
  }

  .post-title {
    font-size: 1.2rem;
  }

  .blog-post .post-title {
    font-size: 1.45rem;
  }

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