:root {
  --primary-color: #1a5f7a;
  --primary-dark: #134a5f;
  --secondary-color: #e67e22;
  --secondary-dark: #d35400;
  --accent-color: #27ae60;
  --text-color: #333;
  --text-light: #666;
  --bg-light: #f8f9fa;
  --bg-white: #fff;
  --border-color: #e0e0e0;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.15);
  --radius: 8px;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans JP', sans-serif;
  color: var(--text-color);
  line-height: 1.8;
  background-color: var(--bg-white);
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 20px;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--bg-white);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  z-index: 1000;
}

.header::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--bg-white);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 100px;
}

.logo-link {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  text-decoration: none;
  color: var(--text-dark);
}

.logo-image {
  height: 45px;
  width: auto;
}

.logo-text-wrap {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.logo-tagline {
  font-size: 0.75rem;
  color: var(--text-light);
  line-height: 1.3;
}

.logo-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-dark);
  line-height: 1.3;
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 18px;
  align-items: center;
}

.main-nav > ul > li > a {
  white-space: nowrap;
}

.main-nav > ul > li {
  position: relative;
}

.main-nav > ul > li.has-dropdown > a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.main-nav > ul > li.has-dropdown > a::after {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  margin-bottom: 3px;
  opacity: 0.7;
}

.main-nav a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  font-size: 0.9rem;
  transition: var(--transition);
}

.main-nav a:hover {
  color: var(--primary-color);
}

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 240px;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s, visibility 0.2s;
  z-index: 1100;
  list-style: none;
  display: flex !important;
  flex-direction: column !important;
  gap: 0 !important;
  align-items: stretch !important;
}

.main-nav > ul > li:hover > .nav-dropdown {
  opacity: 1;
  visibility: visible;
}

.nav-dropdown li {
  padding: 0;
  display: block;
}

.nav-dropdown a {
  display: block;
  padding: 10px 20px;
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-color);
  white-space: nowrap;
  border-bottom: 1px solid var(--border-color);
}

.nav-dropdown li:last-child a {
  border-bottom: none;
}

.nav-dropdown .nav-separator {
  border-top: 3px double #ccc;
  margin: 0;
  padding: 0;
  pointer-events: none;
}

.nav-dropdown .nav-section-label {
  padding: 6px 20px 2px;
  font-size: 0.7rem;
  color: #999;
  pointer-events: none;
  background: #f7f7f7;
  letter-spacing: 0.05em;
}

.nav-dropdown .nav-sub-item a {
  background: #f7f7f7;
  font-size: 0.8rem;
  color: #666;
}

.nav-dropdown .nav-sub-item a:hover {
  background: #eee;
  color: var(--primary-color);
}

.nav-dropdown a:hover {
  background: #e8e8e8;
  color: var(--primary-color);
}

.nav-contact {
  background: var(--secondary-color);
  color: white !important;
  padding: 8px 20px;
  border-radius: var(--radius);
}

.nav-contact:hover {
  background: var(--secondary-dark);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
}

.mobile-menu-btn span {
  display: block;
  width: 25px;
  height: 3px;
  background: var(--primary-color);
  border-radius: 2px;
  transition: var(--transition);
}

.hero {
  position: relative;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 44px 20px 44px;
  margin-top: 152px;
  text-align: center;
  overflow: hidden;
}

.hero-slideshow {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
}

.hero-slide.is-active {
  opacity: 1;
}

.hero-slideshow::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 51, 102, 0.2) 0%, rgba(0, 31, 63, 0.2) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 620px;
  margin: 0 auto;
  text-shadow: 0 1px 4px rgba(0, 20, 40, 0.7), 0 2px 12px rgba(0, 20, 40, 0.6);
}

.hero h2 {
  font-size: 2rem;
  margin-bottom: 20px;
  line-height: 1.4;
}

.hero p {
  font-size: 1.1rem;
  opacity: 1;
  margin-bottom: 30px;
}

.hero-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-buttons .btn {
  padding: 8px 22px;
  border: 1px solid white;
  text-shadow: 0 2px 2px rgba(0, 20, 40, 0.8);
}

.hero-buttons .btn:hover {
  transform: translateY(-2px);
}

.hero-buttons .btn-primary {
  background: rgba(230, 126, 34, 0.8);
  border-color: rgba(230, 126, 34, 0.8);
}

.hero-buttons .btn-secondary {
  background: rgba(255, 255, 255, 0.8);
  border-color: rgba(255, 255, 255, 0.8);
  color: var(--primary-color);
  text-shadow: 0 2px 2px rgba(255, 255, 255, 0.9);
  font-weight: 600;
}

.hero-buttons .btn-secondary:hover {
  background: rgba(255, 255, 255, 1);
  border-color: rgba(255, 255, 255, 1);
  color: var(--primary-color);
  text-shadow: none;
}

.btn {
  display: inline-block;
  padding: 12px 30px;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.btn-primary {
  background: var(--secondary-color);
  color: white;
}

.btn-primary:hover {
  background: var(--secondary-dark);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: white;
  border: 2px solid white;
}

.btn-secondary:hover {
  background: white;
  color: var(--primary-color);
}

.btn-large {
  padding: 16px 40px;
  font-size: 1.1rem;
}

.section {
  padding: 60px 0;
}

.section-title {
  font-size: 1.6rem;
  text-align: center;
  margin-bottom: 15px;
  color: var(--primary-color);
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  margin-bottom: 50px;
}

.featured-section {
  background: #f7f9fc;
  padding: 36px 0;
}

.featured-grid {
  display: grid;
  grid-template-columns: 1fr 240px;
  grid-template-rows: auto auto;
  gap: 14px;
  align-items: stretch;
}

.page-with-sidebar {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 24px;
  align-items: start;
}

.page-with-sidebar .page-main {
  min-width: 0;
}

.page-with-sidebar .page-sidebar {
  background: #ffffff;
  border: 1px solid #e5e9ef;
  border-radius: 8px;
  padding: 18px 16px;
  box-shadow: none;
  margin-top: 45px;
}

.topic-detail-page .page-with-sidebar .topic-breadcrumb {
  margin-bottom: 21px;
}

@media (max-width: 700px) {
  .page-with-sidebar .page-sidebar {
    margin-top: 0;
  }
}

@media (max-width: 1100px) {
  .page-with-sidebar {
    grid-template-columns: 1fr 220px;
  }
}

@media (max-width: 900px) {
  .page-with-sidebar {
    grid-template-columns: 1fr 200px;
  }
}

@media (max-width: 700px) {
  .page-with-sidebar {
    grid-template-columns: 1fr;
  }
}

.featured-news,
.featured-seminars,
.featured-sponsors {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.featured-news {
  grid-column: 1;
  grid-row: 1;
}

.featured-seminars {
  grid-column: 1;
  grid-row: 2;
}

.featured-sponsors {
  grid-column: 2;
  grid-row: 1 / span 2;
}

.featured-news-list,
.featured-seminar-list {
  flex: 1 1 auto;
}

.featured-news,
.featured-seminars,
.featured-sponsors {
  background: var(--bg-white);
  border-radius: 10px;
  padding: 20px 16px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  border: 1px solid #eef1f5;
}

.featured-sponsors {
  padding: 16px 12px;
}

.featured-sponsors .featured-title {
  font-size: 1rem;
  background: var(--primary-color);
  color: #fff;
  padding: 8px 12px;
  border-radius: 6px;
  border-bottom: none;
  margin-bottom: 12px;
  justify-content: center;
}

.featured-sponsors .featured-title a {
  color: #fff;
  text-decoration: none;
}

.featured-sponsors .featured-title::after {
  display: none;
}

.sponsor-rank-note {
  font-size: 0.68rem;
  color: var(--text-light);
  margin: 2px 0 8px;
  text-align: center;
}

.sponsor-rank-group {
  margin-bottom: 22px;
}

.sponsor-rank-group:last-of-type {
  margin-bottom: 16px;
}

.sponsor-rank-title {
  font-size: 0.85rem;
  font-weight: 700;
  padding: 6px 10px;
  margin: 0 0 12px;
  border-radius: 4px;
  color: #fff;
  letter-spacing: 0.05em;
}

.sponsor-rank-platinum {
  background: linear-gradient(135deg, #6b7480 0%, #b0b8c0 100%);
}

.sponsor-rank-gold {
  background: linear-gradient(135deg, #c79a3a 0%, #f1d680 100%);
}

.sponsor-rank-silver {
  background: linear-gradient(135deg, #8a9098 0%, #c4cbd2 100%);
}

.sponsor-rank-bronze {
  background: linear-gradient(135deg, #8a5a30 0%, #c89668 100%);
}

.sponsor-rank-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sponsor-rank-list a {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  border: 1px solid #e8ebf0;
  border-radius: 6px;
  padding: 10px 8px;
  transition: var(--transition);
}

.sponsor-rank-list a:hover {
  transform: translateY(-2px);
  border-color: var(--secondary-color);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  opacity: 1;
}

.sponsor-rank-list img {
  max-width: 100%;
  object-fit: contain;
  display: block;
}

.sponsor-rank-list-platinum a {
  min-height: 56px;
}
.sponsor-rank-list-platinum img {
  max-height: 48px;
}

.sponsor-rank-list-gold a {
  min-height: 44px;
}
.sponsor-rank-list-gold img {
  max-height: 36px;
}

.sponsor-rank-list-silver a {
  min-height: 34px;
}
.sponsor-rank-list-silver img {
  max-height: 26px;
}

.sponsor-rank-list-bronze a {
  min-height: 28px;
}
.sponsor-rank-list-bronze img {
  max-height: 22px;
}

.sponsor-ad-block {
  margin-bottom: 18px;
  padding-bottom: 16px;
  text-align: center;
}

.sponsor-ad-link {
  display: inline-block;
  color: var(--primary-color);
  font-weight: 600;
  font-size: 0.82rem;
  text-decoration: none;
  padding-bottom: 1px;
}

.sponsor-ad-link:hover {
  opacity: 0.8;
}

.sponsor-ad-note {
  font-size: 0.75rem;
  color: var(--text-light);
  margin: 6px 0 10px;
  text-align: center;
}

.sponsor-ad-image {
  display: block;
  text-align: center;
}

.sponsor-ad-image img {
  max-width: 100%;
  height: auto;
  display: inline-block;
}

.featured-title {
  font-size: 1.35rem;
  color: var(--primary-color);
  margin: 0 0 18px;
  padding: 0 0 12px;
  border-bottom: 1px solid #e5e9ef;
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: -0.02em;
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 700;
}

.featured-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 36px;
  height: 2px;
  background: var(--secondary-color);
  border-radius: 1px;
}

.featured-icon {
  font-size: 1.05rem;
  flex-shrink: 0;
  opacity: 0.85;
}

.featured-news-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.featured-news-item {
  display: flex;
  gap: 14px;
  padding: 12px 12px;
  background: transparent;
  border-radius: 6px;
  border-bottom: 1px solid #f0f3f7;
  align-items: flex-start;
  transition: background-color 0.18s ease;
  position: relative;
}

.featured-news-item:last-child {
  border-bottom: none;
}

.date-new-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  white-space: nowrap;
  width: 150px;
  line-height: 1.5;
}

.date-new-wrapper time {
  order: 2;
}

.date-new-wrapper .new-badge {
  order: 1;
}

.featured-news-item:hover {
  background: #eaf2f9;
}

.featured-news-item:hover a,
.featured-news-item:hover .news-text {
  color: var(--primary-color);
}

.featured-news-item time {
  flex-shrink: 0;
  color: var(--text-color);
  padding: 0;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  font-variant-numeric: tabular-nums;
}

.new-badge {
  display: inline-flex;
  align-items: center;
  background: #e74c3c;
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 4px;
  animation: pulse 1.5s ease-in-out infinite;
  vertical-align: middle;
  flex-shrink: 0;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.featured-news-item a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  line-height: 1.5;
  flex: 1;
  min-width: 0;
  display: block;
}

.featured-news-item a:hover {
  color: var(--primary-color);
}

.featured-news-item.has-banner a {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.news-text {
  display: block;
}

.news-banner {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  margin: 4px 0 0;
  border-radius: 0;
  transition: opacity 0.2s ease;
}

.featured-news-item.has-banner:hover .news-banner {
  opacity: 0.88;
}

@media (min-width: 769px) {
  .news-banner {
    width: 100%;
    max-width: 100%;
  }
}

.featured-more {
  display: block;
  margin-top: 20px;
  color: var(--secondary-color);
  text-decoration: none;
  font-weight: 600;
  text-align: right;
  transition: var(--transition);
}

.featured-more:hover {
  color: var(--secondary-dark);
  transform: translateX(5px);
}

.featured-seminar-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.featured-seminar-item {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 10px;
  row-gap: 4px;
  padding: 14px 12px;
  background: transparent;
  border-radius: 6px;
  border-bottom: 1px solid #f0f3f7;
  text-decoration: none;
  color: var(--text-color);
  transition: background-color 0.18s ease;
  align-items: start;
  min-width: 0;
}

.featured-seminar-item:last-child {
  border-bottom: none;
}

.featured-seminar-item .seminar-badge {
  grid-column: 1;
  grid-row: 1;
  align-self: center;
}

.featured-seminar-item .seminar-info {
  display: contents;
  min-width: 0;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.featured-seminar-item .seminar-info h3 {
  grid-column: 2;
  grid-row: 1;
  min-width: 0;
  align-self: center;
  margin-bottom: 0;
}

.featured-seminar-item .seminar-info .seminar-desc,
.featured-seminar-item .seminar-info .seminar-datetime,
.featured-seminar-item .seminar-info .seminar-host,
.featured-seminar-item .seminar-info .seminar-meta {
  grid-column: 2;
  min-width: 0;
}

.featured-seminar-item:hover {
  background: #fff8f1;
}

.seminar-badge {
  flex-shrink: 0;
  background: var(--secondary-color);
  color: white;
  padding: 6px 4px;
  border-radius: 6px;
  font-weight: 700;
  text-align: center;
  min-width: 42px;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.15;
  white-space: nowrap;
}

.badge-year,
.badge-date {
  white-space: nowrap;
}

.badge-year {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  opacity: 0.9;
}

.badge-date {
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.1;
}

.seminar-badge.ondemand-badge {
  background: var(--accent-color);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 8px 6px;
}

.ondemand-label {
  color: var(--accent-color);
  font-weight: 700;
}

.featured-seminar-item.ondemand:hover {
  background: #e8f8ee;
}

.seminar-info h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.4;
  color: var(--text-dark);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.seminar-desc {
  font-size: 0.78rem;
  color: var(--text-color);
  margin-bottom: 4px;
  margin-top: 0;
  line-height: 1.35;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.seminar-datetime {
  display: block;
  font-size: 0.8rem;
  color: var(--secondary-color);
  font-weight: 700;
  margin-bottom: 4px;
  line-height: 1.2;
  padding-top: 0;
}

.seminar-host {
  display: block;
  font-size: 0.75rem;
  color: var(--text-light);
  line-height: 1.2;
  margin-top: 0;
}

.seminar-meta {
  display: block;
  font-size: 0.8rem;
  color: var(--text-light);
  line-height: 1.3;
  margin-top: 2px;
}

@media (max-width: 1100px) {
  .featured-grid {
    grid-template-columns: 1fr 220px;
  }
}

@media (max-width: 900px) {
  .featured-grid {
    grid-template-columns: 1fr 200px;
  }
}

@media (max-width: 700px) {
  .featured-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    gap: 24px;
  }
  .featured-news,
  .featured-seminars,
  .featured-sponsors {
    grid-column: 1;
    grid-row: auto;
  }
  .featured-news { order: 1; }
  .featured-seminars { order: 2; }
  .featured-sponsors { order: 3; }
  .sponsor-rank-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px 18px;
  }
  .sponsor-rank-list a {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6px 4px;
    min-width: 0;
    width: 100%;
  }
  .sponsor-rank-list img {
    max-width: 100%;
    width: auto;
    object-fit: contain;
  }
  .sponsor-rank-list-platinum {
    grid-template-columns: repeat(2, 1fr);
  }
  .sponsor-rank-list-platinum a { min-height: 64px; }
  .sponsor-rank-list-platinum img { max-height: 48px; }
  .sponsor-rank-list-gold {
    grid-template-columns: repeat(3, 1fr);
  }
  .sponsor-rank-list-gold a { min-height: 50px; }
  .sponsor-rank-list-gold img { max-height: 36px; }
  .sponsor-rank-list-silver {
    grid-template-columns: repeat(3, 1fr);
  }
  .sponsor-rank-list-silver a { min-height: 40px; }
  .sponsor-rank-list-silver img { max-height: 26px; }
  .sponsor-rank-list-bronze {
    grid-template-columns: repeat(4, 1fr);
  }
  .sponsor-rank-list-bronze a { min-height: 34px; }
  .sponsor-rank-list-bronze img { max-height: 22px; }
  .sponsor-ad-block {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px 14px;
    text-align: left;
    padding: 0 12px 12px;
  }
  .sponsor-ad-link {
    flex: 0 0 auto;
    white-space: nowrap;
  }
  .sponsor-ad-note {
    flex: 0 0 auto;
    margin: 0;
    text-align: left;
    white-space: nowrap;
  }
  .sponsor-ad-image {
    flex: 0 0 auto;
    display: inline-block;
    text-align: left;
  }
  .sponsor-ad-image img {
    max-height: 40px;
    width: auto;
    display: block;
  }
}

@media (max-width: 480px) {
  .featured-news,
  .featured-seminars {
    padding: 20px;
  }
  
  .featured-news-item {
    flex-direction: column;
    gap: 6px;
  }
  
  .date-new-wrapper {
    width: auto;
  }
  
  .featured-title {
    font-size: 1.08rem;
    letter-spacing: -0.05em;
    gap: 6px;
  }

  .featured-seminar-item {
    padding-left: 0;
    padding-right: 0;
  }

  .featured-seminar-item .seminar-info .seminar-desc,
  .featured-seminar-item .seminar-info .seminar-datetime,
  .featured-seminar-item .seminar-info .seminar-host,
  .featured-seminar-item .seminar-info .seminar-meta {
    grid-column: 1 / -1;
  }
}

.about-section {
  background: var(--bg-light);
}

.about-intro {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-color);
}

.about-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.about-card-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  text-decoration: none;
  color: var(--text-color);
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 32px 20px 24px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-top: 3px solid #e65100;
}

.about-card-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.about-card-icon-wrap {
  font-size: 2rem;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff5ef;
  border-radius: 50%;
  margin-bottom: 16px;
}

.about-card-item h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 8px;
}

.about-card-item p {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.5;
  margin: 0 0 16px;
  flex-grow: 1;
}

.about-card-more {
  font-size: 0.82rem;
  font-weight: 600;
  color: #e65100;
  transition: var(--transition);
}

.about-card-item:hover .about-card-more {
  letter-spacing: 0.5px;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
  margin-top: 50px;
}

.about-card {
  background: var(--bg-white);
  padding: 30px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

.about-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.about-card .card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.card-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.about-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0;
  color: var(--primary-color);
}

.about-card p {
  color: var(--text-light);
  font-size: 0.9rem;
  margin-bottom: 15px;
  flex-grow: 1;
}

a.about-card-link {
  text-decoration: none;
  display: flex;
  flex-direction: column;
  color: inherit;
}

.about-card .card-link {
  color: var(--secondary-color);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  align-self: flex-end;
}

.card-link:hover {
  color: var(--secondary-dark);
}

.pcidss-section {
  background: var(--bg-white);
}

.pcidss-intro {
  max-width: 800px;
  margin: 30px auto 0;
  text-align: center;
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.8;
}

.pcidss-intro strong {
  color: var(--primary-color);
}

.pcidss-nav-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  margin-top: 40px;
  border: 1px solid #d5e3d0;
  border-radius: var(--radius);
  overflow: hidden;
}

.pcidss-nav-item {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 20px 24px;
  text-decoration: none;
  color: var(--text-color);
  background: var(--bg-white);
  border-bottom: 1px solid #d5e3d0;
  border-right: 1px solid #d5e3d0;
  transition: var(--transition);
  position: relative;
}

.pcidss-nav-item:nth-child(even) {
  border-right: none;
}

.pcidss-nav-item:nth-last-child(-n+2) {
  border-bottom: none;
}

.pcidss-nav-item:hover {
  background: #f0f7ed;
}

.pcidss-nav-icon {
  font-size: 1.6rem;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #e8f5e2;
  border-radius: 10px;
}

.pcidss-nav-text {
  flex: 1;
  min-width: 0;
}

.pcidss-nav-text h3 {
  font-size: 1rem;
  font-weight: 700;
  color: #2e7d32;
  margin-bottom: 3px;
}

.pcidss-nav-text p {
  font-size: 0.82rem;
  color: var(--text-light);
  margin: 0;
  line-height: 1.4;
}

.pcidss-nav-arrow {
  flex-shrink: 0;
  color: #2e7d32;
  font-size: 1.1rem;
  font-weight: 700;
  opacity: 0.5;
  transition: var(--transition);
}

.pcidss-nav-item:hover .pcidss-nav-arrow {
  opacity: 1;
  transform: translateX(3px);
}

.pcidss-resources-new {
  margin-top: 40px;
}

.pcidss-resources-new > h3 {
  font-size: 1.1rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--primary-color);
}

.pcidss-resources-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.pcidss-resource-card {
  display: block;
  text-decoration: none;
  background: var(--bg-light);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  transition: var(--transition);
  border: 1px solid transparent;
}

.pcidss-resource-card:hover {
  border-color: var(--primary-color);
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.pcidss-resource-icon-wrap {
  font-size: 2rem;
  margin-bottom: 10px;
}

.pcidss-resource-card h4 {
  font-size: 0.95rem;
  color: var(--text-color);
  margin-bottom: 6px;
  font-weight: 700;
}

.pcidss-resource-card p {
  font-size: 0.82rem;
  color: var(--text-light);
  margin: 0;
  line-height: 1.5;
}

.news-section {
  background: var(--bg-light);
}

.news-list {
  max-width: 800px;
  margin: 50px auto 30px;
}

.news-item {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-color);
  align-items: flex-start;
}

.news-item time {
  flex-shrink: 0;
  color: var(--text-light);
  font-size: 0.9rem;
}

.news-item a {
  color: var(--text-color);
  text-decoration: none;
  transition: var(--transition);
}

.news-item a:hover {
  color: var(--primary-color);
}

.more-link {
  display: block;
  text-align: right;
  color: var(--secondary-color);
  text-decoration: none;
  font-weight: 500;
  margin-top: 20px;
}

.more-link:hover {
  color: var(--secondary-dark);
}

.seminars-section {
  background: var(--bg-white);
}

.seminars-list {
  max-width: 900px;
  margin: 50px auto 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.seminar-card {
  display: flex;
  gap: 25px;
  background: var(--bg-light);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.seminar-card:hover {
  box-shadow: var(--shadow);
}

.seminar-date {
  flex-shrink: 0;
  width: 120px;
  background: var(--primary-color);
  color: white;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  text-align: center;
}

.seminar-date .year {
  font-size: 0.8rem;
  opacity: 0.8;
}

.seminar-date .day {
  font-size: 1.5rem;
  font-weight: 700;
}

.seminar-date .time {
  font-size: 0.75rem;
  opacity: 0.8;
}

.seminar-card.ondemand .seminar-date {
  background: var(--accent-color);
}

.ondemand-label {
  font-size: 0.8rem;
  font-weight: 700;
}

.seminar-content {
  padding: 20px;
  flex: 1;
}

.seminar-content h3 {
  font-size: 1rem;
  margin-top: 0;
  margin-bottom: 10px;
}

.seminar-content h3 a {
  color: var(--text-color);
  text-decoration: none;
}

.seminar-content h3 a:hover {
  color: var(--primary-color);
}

.seminar-content p {
  color: var(--text-light);
  font-size: 0.85rem;
  margin-bottom: 10px;
}

.seminar-host {
  display: block;
  font-size: 0.8rem;
  color: var(--text-light);
}

.seminar-location {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--primary-color);
}

.topics-section {
  background: var(--bg-light);
}

.topics-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 50px auto 30px;
  max-width: 900px;
  border-top: 1px solid var(--border-color);
}

.topic-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  text-decoration: none;
  color: var(--text-color);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.topic-card:hover {
  background: var(--bg-light);
  color: var(--primary-color);
}

.topic-card h3 {
  font-size: 0.95rem;
  font-weight: 500;
}

.topic-arrow {
  font-size: 1.2rem;
  color: var(--secondary-color);
  flex-shrink: 0;
  margin-left: 10px;
}

.related-section {
  background: var(--bg-white);
}

.related-grid {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 50px;
}

.related-card {
  padding: 20px 40px;
  background: var(--bg-light);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text-color);
  transition: var(--transition);
  border: 2px solid transparent;
}

.related-card:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.related-card h3 {
  font-size: 1rem;
}

.sponsor-slider {
  position: fixed;
  top: 100px;
  left: 0;
  right: 0;
  background: #fff;
  border-bottom: 1px solid var(--border-color);
  overflow: hidden;
  z-index: 999;
  padding: 8px 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sponsor-slider-wrap {
  display: none;
}

.sponsor-slider-shadow {
  display: none;
}

.sponsor-slider-inner {
  display: flex;
  align-items: center;
  width: 100%;
  max-width: 1200px;
  height: 100%;
  overflow: hidden;
}

.track-static-group {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  padding: 0 15px;
}

.track-static-group a {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.track-static-group img {
  max-height: 45px;
  max-width: none !important;
  object-fit: contain;
  filter: none !important;
}

.track-static-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  font-size: 0.65rem;
  color: #666;
  line-height: 1.3;
  white-space: nowrap;
  flex-shrink: 0;
}

.track-static-text a {
  color: var(--primary-color);
  font-size: 0.65rem;
  padding: 0 !important;
}

.sponsor-track {
  display: flex;
  align-items: center;
  gap: 40px;
  width: max-content;
  margin-left: 20px;
}

.sponsor-track:hover {
  cursor: pointer;
}

.sponsor-track a {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 0 15px;
  transition: var(--transition);
}

.sponsor-track a:hover {
  transform: scale(1.1);
}

.sponsor-track img {
  max-width: 100px;
  max-height: 35px;
  object-fit: contain;
  filter: grayscale(30%);
  transition: var(--transition);
}

.sponsor-track a.rank-platinum img {
  max-width: 200px;
  height: 60px;
  object-fit: contain;
}

.sponsor-track a.rank-gold img {
  max-width: 120px;
  max-height: 40px;
}

.sponsor-track a.rank-silver img {
  max-width: 80px;
  max-height: 28px;
}

.sponsor-track a:hover img {
  filter: grayscale(0%);
}


.silver-sponsor-bar {
  background: #fff;
  border-bottom: 1px solid var(--border-color);
  overflow: hidden;
  padding: 8px 0;
  display: flex;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.silver-sponsor-track {
  display: flex;
  align-items: center;
  gap: 100px;
  width: max-content;
}

.silver-sponsor-track:hover {
  cursor: pointer;
}

.silver-sponsor-track .track-static-group img {
  max-height: 30px;
  max-width: none;
  filter: none;
}

.silver-sponsor-track a {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 0 10px;
  transition: var(--transition);
}

.silver-sponsor-track a:hover {
  transform: scale(1.1);
}

.silver-sponsor-track img {
  max-width: 70px;
  max-height: 25px;
  object-fit: contain;
  filter: grayscale(30%);
  transition: var(--transition);
}

.silver-sponsor-track a:hover img {
  filter: grayscale(0%);
}



.contact-section {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: white;
  text-align: center;
}

.contact-section .section-title {
  color: white;
}

.contact-text {
  margin-bottom: 30px;
  opacity: 0.9;
}

.contact-text-br-sp {
  display: none;
}

.seminar-apply-btn-wrap {
  text-align: center;
  margin: 8px 0 12px;
}

.seminar-apply-btn {
  display: inline-block;
  background: var(--secondary-color, #e87722);
  color: #fff !important;
  font-weight: 700;
  padding: 12px 24px;
  border-radius: 6px;
  text-decoration: none;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.seminar-apply-btn:hover {
  background: var(--primary-color, #0a4d8c);
  transform: translateY(-1px);
}

@media (max-width: 480px) {
  .contact-text-br-sp {
    display: inline;
  }
}

.footer {
  background: #fff;
  padding: 20px 0;
  text-align: center;
}

.contact-faq-hint {
  margin-bottom: 25px;
}

.contact-faq-hint .faq-link {
  color: #fff;
  font-size: 1.05rem;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: opacity 0.2s;
}

.contact-faq-hint .faq-link:hover {
  opacity: 0.8;
}

.footer-links {
  margin-bottom: 15px;
  display: flex;
  justify-content: center;
  gap: 30px;
}

.footer-links a {
  color: var(--text-light);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--secondary-color);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--text-light);
  text-decoration: none;
  font-size: 0.85rem;
}

.footer-links a:hover {
  color: var(--primary-color);
  text-decoration: underline;
}

.footer-copyright {
  font-size: 0.8rem;
  color: var(--text-light);
}

.pc-only {
  display: inline;
}

.sp-only {
  display: none;
}

.phone-only {
  display: none;
}

@media (max-width: 768px) {
  .phone-only {
    display: inline;
  }
}

@media (max-width: 1024px) {
  .mobile-menu-btn {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 100px;
    left: 0;
    right: 0;
    bottom: 0;
    background: #fff;
    padding: 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.06);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    overflow-y: auto;
    z-index: 1200;
  }

  .main-nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .main-nav > ul {
    flex-direction: column !important;
    gap: 0 !important;
    padding: 0;
    margin: 0;
    align-items: stretch !important;
  }

  .main-nav > ul > li {
    border-bottom: 1px solid #e5e5e5;
  }

  .main-nav > ul > li > a {
    display: flex !important;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px !important;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--heading-color);
    text-align: left;
  }

  .main-nav > ul > li > a:hover {
    background: transparent;
  }

  .main-nav > ul > li.has-dropdown > a {
    gap: 0 !important;
  }

  .main-nav > ul > li.has-dropdown > a::after {
    content: "";
    width: 8px;
    height: 8px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    margin-bottom: 3px;
    opacity: 0.7;
    transition: transform 0.3s;
    flex-shrink: 0;
  }

  .main-nav > ul > li.has-dropdown.dropdown-open > a::after {
    transform: rotate(-135deg);
    margin-bottom: -3px;
  }

  .main-nav > ul > li:not(.has-dropdown) > a::after {
    display: none;
  }

  .nav-dropdown {
    position: static !important;
    transform: none !important;
    box-shadow: none !important;
    border: none !important;
    border-radius: 0 !important;
    min-width: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
    max-height: 0;
    opacity: 0 !important;
    visibility: hidden !important;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
    background: #f8f8f8 !important;
  }

  .main-nav > ul > li.has-dropdown.dropdown-open > .nav-dropdown {
    max-height: 600px;
    opacity: 1 !important;
    visibility: visible !important;
    padding: 0 !important;
  }

  .main-nav > ul > li:hover > .nav-dropdown {
    opacity: 0 !important;
    visibility: hidden !important;
  }

  .main-nav > ul > li.has-dropdown.dropdown-open:hover > .nav-dropdown {
    opacity: 1 !important;
    visibility: visible !important;
  }

  .nav-dropdown li {
    border-top: 1px solid #eee;
  }

  .nav-dropdown a {
    display: flex !important;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px 14px 32px !important;
    font-size: 0.9rem !important;
    font-weight: 400;
    color: var(--text-color);
    border-bottom: none !important;
    text-align: left;
  }

  .nav-dropdown a::after {
    content: "›";
    font-size: 1.1rem;
    font-weight: 300;
    opacity: 0.35;
    flex-shrink: 0;
  }

  .nav-dropdown a:hover {
    background: #eee !important;
  }

  .nav-dropdown .nav-separator {
    border-top: 3px double #ccc;
    margin: 0;
  }

  .nav-dropdown .nav-section-label {
    padding: 8px 20px 2px 32px;
    font-size: 0.7rem;
    color: #999;
    background: #f5f5f5;
    letter-spacing: 0.05em;
  }

  .nav-dropdown .nav-sub-item a {
    background: #f5f5f5 !important;
    font-size: 0.85rem !important;
    color: #666 !important;
  }

  .nav-dropdown .nav-sub-item a:hover {
    background: #eaeaea !important;
    color: var(--primary-color) !important;
  }

  .nav-dropdown li:last-child a {
    border-bottom: none !important;
  }

  .main-nav .nav-contact {
    all: unset;
    display: flex !important;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px !important;
    color: var(--text-color) !important;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: inherit;
    line-height: inherit;
    background: none !important;
    border-radius: 0 !important;
  }

  .main-nav .nav-contact::after {
    display: none;
  }

  .main-nav .nav-contact:hover {
    color: var(--primary-color) !important;
    background: transparent !important;
  }

  .mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
  }

  .mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }

  .header {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  }

  .sponsor-slider,
  .sponsor-slider-wrap,
  .sponsor-slider-shadow,
  .silver-sponsor-bar {
    display: none !important;
  }

  .track-static-group {
    gap: 8px;
    padding: 0 10px;
  }

  .track-static-group img {
    max-height: 35px;
  }

  .track-static-text {
    font-size: 0.55rem;
  }

  .page-content {
    padding-top: 152px;
  }

  .hero {
    padding: 60px 20px 60px;
    margin-top: 152px;
  }

  .sp-only {
    display: inline;
  }


}

@media (max-width: 768px) {
  .hero h2 {
    font-size: 1.8rem;
  }

  .hero p {
    font-size: 1rem;
  }


  .section {
    padding: 40px 0;
  }

  .section-title {
    font-size: 1.3rem;
  }

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

  .about-cards-grid {
    grid-template-columns: 1fr 1fr;
  }

  .pcidss-nav-grid {
    grid-template-columns: 1fr;
  }

  .pcidss-nav-item {
    border-right: none !important;
  }

  .pcidss-nav-item:last-child {
    border-bottom: none;
  }

  .pcidss-resources-grid {
    grid-template-columns: 1fr;
  }

  .news-item {
    flex-direction: column;
    gap: 5px;
  }

  .seminar-card {
    flex-direction: column;
  }

  .seminar-date {
    width: 100%;
    flex-direction: row;
    gap: 10px;
    padding: 15px;
  }

  .seminar-date .year,
  .seminar-date .day,
  .seminar-date .time {
    font-size: 0.9rem;
  }



  .related-grid {
    flex-direction: column;
    align-items: center;
  }

  .related-card {
    width: 100%;
    text-align: center;
  }

  .sponsors-grid {
    gap: 20px;
  }

  .sponsor-logo img {
    max-width: 100px;
  }
}

@media (max-width: 480px) {
  .pc-only {
    display: none;
  }

  .header-container {
    height: 70px;
  }

  .sponsor-slider {
    top: 70px;
  }

  .logo-image {
    height: 35px;
  }

  .logo-tagline {
    font-size: 0.55rem;
  }

  .logo-name {
    font-size: 0.8rem;
  }

  .hero h2 {
    font-size: 1.5rem;
  }

  .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }

  .btn-large {
    padding: 14px 30px;
  }

  .about-cards-grid {
    grid-template-columns: 1fr;
  }

}

.page-content {
  padding-top: 152px;
  padding-bottom: 60px;
  min-height: calc(100vh - 200px);
}

.breadcrumb {
  font-size: 0.875rem;
  color: var(--text-light);
  margin-bottom: 20px;
}

.breadcrumb a {
  color: var(--secondary-color);
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.page-title {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 40px;
  padding-bottom: 15px;
  border-bottom: 3px solid var(--secondary-color);
}

.content-box {
  background: var(--bg-white);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.lead-text {
  font-size: 1.1rem;
  margin-bottom: 30px;
  color: var(--text-color);
}

.contact-info-box {
  background: var(--bg-light);
  padding: 30px;
  border-radius: var(--radius);
  border-left: 4px solid var(--secondary-color);
}

.contact-info-box h2 {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.contact-details {
  display: grid;
  gap: 15px;
}

.contact-details dt {
  font-weight: 600;
  color: var(--text-light);
  font-size: 0.9rem;
}

.contact-details dd {
  margin-left: 0;
  font-size: 1.1rem;
}

.contact-details a {
  color: var(--secondary-color);
  text-decoration: none;
}

.contact-details a:hover {
  text-decoration: underline;
}

.slider-static-text a {
  color: var(--secondary-color);
  text-decoration: none;
}

.slider-static-text a:hover {
  text-decoration: underline;
}

.topic-detail-page {
  padding: 120px 0 60px;
}

.topic-detail-page.document-box-page .topic-article {
  margin-top: 60px;
}

.topic-breadcrumb {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 30px;
}

.topic-breadcrumb a {
  color: var(--secondary-color);
  text-decoration: none;
}

.topic-breadcrumb a:hover {
  text-decoration: underline;
}

.topic-article {
  background: var(--bg-white);
  border: 1px solid #e5e9ef;
  border-radius: 8px;
  padding: 40px;
  box-shadow: none;
}

.topic-detail-title {
  font-size: 1.6rem;
  color: var(--primary-color);
  margin-bottom: 25px;
  padding-bottom: 15px;
  border-bottom: 3px solid var(--secondary-color);
}

.topic-detail-lead {
  background: var(--bg-light);
  padding: 20px;
  border-radius: var(--radius);
  margin-bottom: 30px;
  font-size: 0.95rem;
  line-height: 1.8;
}

.topic-detail-body {
  line-height: 1.8;
}

.topic-detail-body img {
  display: block;
  margin-left: auto;
  margin-right: auto;
  max-width: 721px;
  width: 100%;
  height: auto;
}

.topic-detail-body img.portrait {
  max-width: 400px;
}

.topic-detail-body p {
  margin-bottom: 20px;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.topic-detail-body a {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.topic-detail-provider {
  font-weight: 500;
  color: var(--text-light);
}

.topic-detail-body h2 {
  font-size: 1.3rem;
  color: var(--primary-color);
  margin: 30px 0 20px;
  padding-left: 12px;
  border-left: 4px solid var(--secondary-color);
}

.topic-detail-body h3 {
  font-size: 1.15rem;
  color: var(--primary-color);
  margin: 26px 0 16px;
  padding-left: 12px;
  border-left: 3px solid var(--secondary-color);
}

.topic-detail-body ul {
  padding-left: 24px;
  margin-bottom: 20px;
}

.topic-detail-body li {
  margin-bottom: 4px;
}

.topic-detail-contents {
  margin-bottom: 30px;
}

.topic-detail-chapter {
  margin-bottom: 20px;
}

.topic-detail-chapter h3 {
  font-size: 1.05rem;
  color: var(--text-color);
  margin-bottom: 10px;
  font-weight: 600;
}

.topic-detail-chapter ul {
  list-style: disc;
  padding-left: 25px;
}

.topic-detail-chapter li {
  margin-bottom: 5px;
  font-size: 0.95rem;
  color: var(--text-light);
}

.topic-detail-report {
  background: var(--bg-light);
  padding: 25px;
  border-radius: var(--radius);
  text-align: center;
  margin-top: 30px;
}

.topic-detail-report p {
  margin-bottom: 15px;
  font-weight: 500;
}

.topic-detail-links {
  margin-top: 25px;
}

.topic-detail-link-item {
  background: var(--bg-light);
  padding: 20px 25px;
  border-radius: var(--radius);
  margin-bottom: 15px;
}

.topic-detail-link-item h3 {
  font-size: 1rem;
  margin-bottom: 12px;
  color: var(--text-color);
}

.topic-detail-link-item .btn {
  font-size: 0.9rem;
}

.content-heading {
  font-size: 1.3rem;
  color: var(--primary-color);
  margin-top: 40px;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid #eee;
}

.content-body {
  line-height: 2;
  color: var(--text-color);
}

.content-body p {
  margin-bottom: 16px;
}

.comparison-table-wrap {
  margin-top: 36px;
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.comparison-table thead th {
  background: var(--primary-color);
  color: #fff;
  padding: 12px 16px;
  text-align: center;
  font-weight: 700;
}

.comparison-table thead th:first-child {
  background: #555;
  width: 100px;
}

.comparison-table tbody th {
  background: #f5f5f5;
  padding: 12px 16px;
  font-weight: 700;
  text-align: center;
  color: var(--text-color);
  border-bottom: 1px solid #ddd;
}

.comparison-table tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid #eee;
  line-height: 1.6;
}

.comparison-table tbody tr:nth-child(even) td {
  background: #fafafa;
}

.complement-cell {
  text-align: center;
  font-weight: 600;
  color: var(--primary-color);
  background: #fff8f0 !important;
}

.content-image-wrap {
  margin: 30px 0;
  text-align: center;
}

.content-image-wrap img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.info-scope-diagram {
  margin: 30px 0;
  padding: 30px;
  background: #f8f9fa;
  border-radius: var(--radius);
}

.scope-layer {
  border: 2px solid;
  border-radius: 12px;
  padding: 16px;
  position: relative;
}

.scope-enterprise {
  border-color: #1565c0;
  background: rgba(21, 101, 192, 0.05);
}

.scope-personal {
  border-color: #e65100;
  background: rgba(230, 81, 0, 0.05);
  margin-top: 10px;
}

.scope-card {
  border-color: #2e7d32;
  background: rgba(46, 125, 50, 0.08);
  margin-top: 10px;
  text-align: center;
}

.scope-label {
  font-weight: 700;
  font-size: 0.9rem;
  display: inline-block;
  padding: 2px 10px;
  border-radius: 4px;
}

.scope-enterprise > .scope-label { color: #1565c0; }
.scope-personal > .scope-label { color: #e65100; }
.scope-card > .scope-label { color: #2e7d32; }

.scope-standards {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.scope-standard-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-color);
}

.scope-bar {
  display: inline-block;
  width: 20px;
  height: 4px;
  border-radius: 2px;
  flex-shrink: 0;
}

.scope-bar-isms { background: #1565c0; }
.scope-bar-pmark { background: #e65100; }
.scope-bar-pcidss { background: #2e7d32; }

.isms-quote {
  border-left: 4px solid var(--secondary-color);
  background: #f8f9fa;
  padding: 20px 24px;
  margin: 20px 0;
  font-style: italic;
  font-weight: 600;
  color: var(--primary-color);
  line-height: 1.8;
}

.pcidss-requirements-list {
  background: #f0f7ed;
  border-radius: var(--radius);
  padding: 24px 24px 24px 44px;
  margin: 20px 0;
}

.pcidss-requirements-list li {
  margin-bottom: 10px;
  line-height: 1.7;
  color: var(--text-color);
}

.pcidss-requirements-list li:last-child {
  margin-bottom: 0;
}

.content-credit {
  font-size: 0.85rem;
  color: var(--text-light);
  text-align: right;
  margin-top: 20px;
  margin-bottom: 24px;
}

.siryo-list {
  display: flex;
  flex-direction: column;
}

.siryo-item {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid #eee;
}

.siryo-item:last-child {
  border-bottom: none;
}

.siryo-date {
  flex-shrink: 0;
  font-size: 0.85rem;
  color: var(--text-light);
  white-space: nowrap;
}

.siryo-content {
  flex: 1;
  line-height: 1.6;
}

.siryo-content a {
  color: var(--secondary-color);
  text-decoration: none;
}

.siryo-content a:hover {
  text-decoration: underline;
}

.news-subtitle {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 8px;
}

.news-date {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid #eee;
}

.news-column-box {
  margin-top: 30px;
  background: #f8f9fa;
  border-left: 4px solid var(--secondary-color);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 20px 24px;
}

.news-column-box h3 {
  font-size: 1rem;
  color: var(--primary-color);
  margin-bottom: 10px;
}

.news-column-box p {
  margin-bottom: 0;
}

.content-subheading {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-color);
  margin-top: 24px;
  margin-bottom: 12px;
}

.content-list {
  padding-left: 24px;
  margin-bottom: 20px;
}

.content-list li {
  margin-bottom: 12px;
  line-height: 1.8;
}

.content-notes {
  margin-top: 24px;
  padding: 20px 24px;
  background: #f8f9fa;
  border-radius: var(--radius);
  font-size: 0.88rem;
  color: var(--text-light);
}

.content-notes p {
  margin-bottom: 10px;
  line-height: 1.7;
}

.content-notes p:last-child {
  margin-bottom: 0;
}

.method-comparison {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 20px 0;
}

.method-box {
  background: #f8f9fa;
  border-radius: var(--radius);
  padding: 20px;
  border-top: 3px solid var(--secondary-color);
}

.method-box h4 {
  font-size: 1rem;
  color: var(--primary-color);
  margin-bottom: 8px;
}

.method-box p {
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.method-example {
  display: flex;
  gap: 8px;
  font-family: monospace;
  font-size: 0.85rem;
  background: #fff;
  padding: 10px 14px;
  border-radius: 6px;
  border: 1px solid #e0e0e0;
}

@media (max-width: 768px) {
  .method-comparison {
    grid-template-columns: 1fr;
  }
}

.content-figure {
  margin: 24px 0;
  text-align: center;
}

.content-figure img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.content-figure-caption {
  margin-top: 10px;
  font-size: 0.88rem;
  color: var(--text-light);
  font-weight: 500;
}

.content-lead-image {
  margin-bottom: 24px;
  border-radius: var(--radius);
  overflow: hidden;
}

.content-lead-image img {
  width: 100%;
  max-width: 600px;
  height: auto;
  display: block;
}

.video-embed {
  margin: 20px 0 28px;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16 / 9;
}

.video-embed iframe {
  width: 100%;
  height: 100%;
}

.topics-archive-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.topics-archive-item {
  padding: 18px 0;
  border-bottom: 1px solid #eee;
}

.topics-archive-item:first-child {
  padding-top: 0;
}

.topics-archive-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.topics-archive-item a {
  color: var(--primary-color);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s;
}

.topics-archive-item a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

.download-box {
  margin-top: 32px;
  padding: 28px;
  background: #f8f9fa;
  border-radius: var(--radius);
  text-align: center;
  border: 2px dashed #ccc;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  font-size: 1rem;
  padding: 14px 28px;
}

.download-version {
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--text-light);
}

.related-links-box {
  margin-top: 36px;
  background: var(--bg-light);
  border-radius: var(--radius);
  padding: 24px 30px;
  border-left: 4px solid var(--secondary-color);
}

.related-links-box h3 {
  font-size: 1rem;
  margin-bottom: 12px;
  color: var(--primary-color);
}

.related-links-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

.related-links-list li a {
  color: var(--secondary-color);
  text-decoration: none;
  font-size: 0.92rem;
}

.related-links-list li a:hover {
  text-decoration: underline;
}

.related-links-list li::before {
  content: "›";
  color: var(--secondary-color);
  margin-right: 6px;
  font-weight: 700;
}

.page-back {
  text-align: center;
  margin-top: 40px;
}

.topic-detail-back {
  text-align: center;
  margin-top: 40px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}

.btn-outline {
  display: inline-block;
  padding: 12px 30px;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  text-decoration: none;
  border-radius: var(--radius);
  font-weight: 500;
  transition: var(--transition);
}

.btn-outline:hover {
  background: var(--primary-color);
  color: #fff;
}

.news-archive {
  margin-top: 20px;
}

.news-archive-year {
  font-size: 1.2rem;
  color: var(--primary-color);
  border-left: 4px solid var(--secondary-color);
  padding-left: 12px;
  margin: 30px 0 15px;
}

.news-archive-year:first-child {
  margin-top: 0;
}

.news-archive-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.news-archive-list li {
  display: flex;
  align-items: baseline;
  gap: 15px;
  padding: 12px 0;
  border-bottom: 1px solid #eee;
}

.news-archive-date {
  flex-shrink: 0;
  font-size: 0.85rem;
  color: var(--text-light);
  min-width: 120px;
}

.news-archive-list li a {
  color: var(--text-color);
  text-decoration: none;
  font-size: 0.95rem;
  line-height: 1.5;
  transition: var(--transition);
}

.news-archive-list li a:hover {
  color: var(--secondary-color);
}

.news-archive-list li.has-banner a {
  display: inline;
}

.news-archive-list li.has-banner .news-banner-img {
  display: block;
  max-width: 100%;
  width: 100%;
  height: auto;
  margin-top: 2px;
  border-radius: 0;
  transition: opacity 0.2s ease;
}

@media (min-width: 769px) {
  .news-archive-list li.has-banner a {
    flex: 1 1 auto;
    min-width: 0;
  }

  .news-archive-list li.has-banner .news-banner-img {
    width: 100%;
    max-width: 100%;
  }
}

.news-archive-list li.has-banner a:hover .news-banner-img {
  opacity: 0.8;
}

@media (max-width: 768px) {
  .news-archive-list li.has-banner .news-banner-img {
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .topic-article {
    padding: 25px 20px;
  }

  .topic-detail-title {
    font-size: 1.3rem;
  }

  .topic-detail-page {
    padding: 100px 0 40px;
  }

  .news-archive-list li {
    flex-direction: column;
    gap: 4px;
  }

  .news-archive-date {
    min-width: auto;
  }
}

.page-title {
  font-size: 1.8rem;
  color: var(--primary-color);
  margin-bottom: 30px;
  padding-bottom: 15px;
  border-bottom: 3px solid var(--primary-color);
}

@media (max-width: 768px) {
  .page-title {
    font-size: 1.3rem;
  }
}

.about-detail-content {
  line-height: 2;
}

.about-detail-section {
  margin-bottom: 40px;
}

.about-detail-section p {
  margin-bottom: 15px;
  color: var(--text-color);
}

.about-video-section {
  background: var(--bg-light);
  padding: 30px;
  border-radius: var(--radius);
  text-align: center;
}

.about-video-lead {
  font-size: 1.1rem;
  margin-bottom: 5px;
}

.about-video-date {
  color: var(--text-light);
  margin-bottom: 20px;
  font-size: 0.95rem;
}

.about-video-date a {
  color: var(--primary-color);
  text-decoration: none;
}

.about-video-date a:hover {
  text-decoration: underline;
}

.about-video-date-link {
  display: block;
  color: var(--primary-color);
  font-size: 0.95rem;
  margin-bottom: 20px;
}

.about-video-banner:hover .about-video-date-link {
  text-decoration: underline;
}

.about-video-links {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

.about-video-banner {
  display: block;
  margin: 0 auto 15px;
  max-width: 600px;
  transition: opacity 0.2s;
}

.about-video-banner:hover {
  opacity: 0.85;
}

.about-video-banner img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
}

.about-video-english {
  margin-top: 10px;
  font-size: 0.95rem;
}

.about-video-english a {
  color: var(--primary-color);
  text-decoration: none;
}

.about-video-english a:hover {
  text-decoration: underline;
}

.about-detail-subtitle {
  font-size: 1.4rem;
  color: var(--primary-color);
  margin-bottom: 25px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border-color);
}

.committee-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.committee-member {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 25px;
}

.committee-role {
  display: inline-block;
  background: var(--primary-color);
  color: white;
  padding: 4px 16px;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 12px;
}

.committee-info {
  margin-bottom: 12px;
}

.committee-company {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-color);
}

.committee-dept {
  font-size: 0.875rem;
  color: var(--text-light);
}

.committee-name {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-color);
  margin-top: 4px;
}

.committee-header-with-photo {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.committee-photo {
  width: 100px;
  height: 100px;
  object-fit: cover;
  border-radius: 50%;
  flex-shrink: 0;
  border: 2px solid var(--border-color);
}

.committee-message p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 0;
}

@media (max-width: 480px) {
  .committee-photo {
    width: 80px;
    height: 80px;
  }
}

.company-list-header {
  margin-bottom: 25px;
  line-height: 1.8;
  text-align: center;
}

.company-banner {
  margin-bottom: 10px;
}

.company-banner img {
  max-width: 234px;
  height: auto;
}

.company-list-header p {
  color: var(--text-color);
}

.company-count {
  font-weight: 700;
  color: var(--primary-color) !important;
  margin-top: 10px;
  text-align: left;
}

.company-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 30px;
  padding: 20px;
  background: var(--bg-light);
  border-radius: var(--radius);
}

.company-nav-link {
  display: inline-block;
  padding: 8px 18px;
  background: var(--primary-color);
  color: white;
  border-radius: 4px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background 0.2s;
}

.company-nav-link:hover {
  background: var(--primary-dark);
}

.company-section {
  margin-bottom: 30px;
}

.company-section-title {
  font-size: 1.2rem;
  color: var(--primary-color);
  padding: 10px 15px;
  background: var(--bg-light);
  border-left: 4px solid var(--primary-color);
  margin-bottom: 15px;
}

.company-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 30px;
}

.company-list li {
  padding: 8px 0;
  border-bottom: 1px solid var(--border-color);
  break-inside: avoid;
  font-size: 0.9rem;
}

.company-list li a {
  color: var(--text-color);
  text-decoration: none;
  transition: color 0.2s;
}

.company-list li a:hover {
  color: var(--primary-color);
}

.company-list li .no-link {
  color: var(--text-light);
}

.company-back-top {
  text-align: right;
  margin-top: 10px;
}

.company-back-top a {
  color: var(--primary-color);
  text-decoration: none;
  font-size: 0.85rem;
}

@media (max-width: 768px) {
  .company-list {
    grid-template-columns: 1fr;
  }

  .company-nav-link {
    padding: 6px 14px;
    font-size: 0.85rem;
  }
}

.kaisoku-content {
  line-height: 2;
}

.kaisoku-date {
  text-align: right;
  color: var(--text-light);
  margin-bottom: 30px;
  font-size: 0.9rem;
}

.kaisoku-section {
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.kaisoku-heading {
  font-size: 1.15rem;
  color: var(--primary-color);
  margin-bottom: 8px;
  padding-left: 12px;
  border-left: 4px solid var(--primary-color);
}

.kaisoku-article {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 8px;
}

.kaisoku-items {
  padding-left: 20px;
  margin: 0;
  list-style: none;
  counter-reset: kaisoku-counter;
}

.kaisoku-items li {
  counter-increment: kaisoku-counter;
  margin-bottom: 8px;
  color: var(--text-color);
}

.kaisoku-items li::before {
  content: counter(kaisoku-counter) ") ";
}

.kaisoku-notes {
  margin-top: 15px;
  padding: 15px;
  background: var(--bg-light);
  border-radius: var(--radius);
  font-size: 0.85rem;
}

.kaisoku-notes p {
  margin-bottom: 4px;
  color: var(--text-light);
}

.kaisoku-appendix {
  border-bottom: none;
}

.kaisoku-end {
  text-align: right;
  font-weight: 700;
  margin-top: 15px;
}

.kaisoku-pdf {
  text-align: center;
  margin: 30px 0;
}

.admission-content {
  line-height: 2;
}

.admission-intro {
  margin-bottom: 30px;
}

.admission-intro p {
  margin-bottom: 12px;
  color: var(--text-color);
}

.admission-note {
  background: var(--bg-light);
  padding: 15px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: var(--text-light) !important;
}

.admission-list {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: admission-counter;
}

.admission-list > li {
  counter-increment: admission-counter;
  margin-bottom: 20px;
  padding: 20px;
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  color: var(--text-color);
  line-height: 1.8;
}

.admission-list > li::before {
  content: counter(admission-counter) ".";
  font-weight: 700;
  color: var(--primary-color);
  margin-right: 8px;
}

.admission-bukai {
  margin-top: 15px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.bukai-item {
  display: flex;
  gap: 8px;
  padding: 12px 15px;
  background: var(--bg-light);
  border-radius: var(--radius);
}

.bukai-num {
  font-weight: 700;
  color: var(--primary-color);
  flex-shrink: 0;
}

.bukai-item strong {
  color: var(--primary-color);
}

.bukai-item p {
  margin: 4px 0 0;
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.7;
}

.bukai-item p.bukai-note {
  margin-top: 6px;
  font-size: 0.85rem;
  color: #c0392b;
}

.admission-download {
  text-align: center;
  margin: 40px 0 30px;
}

.bukai-content {
  line-height: 1.8;
}

.bukai-lead {
  font-size: 1.05rem;
  color: var(--text-color);
  margin-bottom: 30px;
}

.bukai-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.bukai-card {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
}

.bukai-card-header {
  background: var(--primary-color);
  padding: 15px 20px;
}

.bukai-card-header h2 {
  color: white;
  font-size: 1.1rem;
  margin: 0;
}

.bukai-card-body {
  padding: 20px;
}

.bukai-card-desc {
  color: var(--text-color);
  margin-bottom: 10px;
  font-size: 0.95rem;
}

.bukai-card-note {
  color: var(--text-light);
  font-size: 0.85rem;
  background: var(--bg-light);
  padding: 10px 12px;
  border-radius: 4px;
}

@media (max-width: 768px) {
  .bukai-list {
    grid-template-columns: 1fr;
  }
}

.qsa-note {
  background: var(--bg-light);
  padding: 15px 20px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 40px;
}

.qsa-note a {
  color: var(--primary-color);
  font-weight: 500;
}

.qsa-section {
  margin-bottom: 50px;
}

.qsa-section-title {
  font-size: 1.3rem;
  color: var(--primary-color);
  border-bottom: 3px solid var(--primary-color);
  padding-bottom: 10px;
  margin-bottom: 15px;
}

.qsa-section-desc {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 20px;
}

.qsa-download {
  margin-bottom: 25px;
}

.qsa-download .btn {
  display: inline-block;
}

.qsa-company-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.qsa-company-item {
  display: flex;
  flex-direction: column;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-color);
  text-decoration: none;
  transition: background 0.2s;
}

.qsa-company-item:first-child {
  border-top: 1px solid var(--border-color);
}

.qsa-company-item:hover {
  background: var(--bg-light);
}

.qsa-company-name {
  font-weight: 600;
  color: var(--text-color);
  font-size: 0.95rem;
}

.qsa-company-en {
  color: var(--text-light);
  font-size: 0.82rem;
  margin-top: 3px;
}

@media (max-width: 768px) {
  .qsa-company-item {
    padding: 12px 14px;
  }

  .qsa-company-name {
    font-size: 0.88rem;
  }
}

.reference-lead {
  font-size: 1.05rem;
  color: var(--text-color);
  line-height: 1.8;
  margin-bottom: 35px;
}

.reference-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.reference-item {
  display: flex;
  gap: 20px;
  padding: 25px 0;
  border-bottom: 1px solid var(--border-color);
}

.reference-item:first-child {
  border-top: 1px solid var(--border-color);
}

.reference-number {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
}

.reference-body h2 {
  font-size: 1.1rem;
  color: var(--text-color);
  margin-bottom: 10px;
}

.reference-body p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 8px;
}

.reference-body a:not(.btn) {
  color: var(--primary-color);
  font-weight: 500;
}

.reference-update {
  font-size: 0.85rem !important;
  color: var(--text-light) !important;
  background: var(--bg-light);
  padding: 8px 12px;
  border-radius: 4px;
}

.btn-sm {
  font-size: 0.85rem !important;
  padding: 8px 18px !important;
  display: inline-block;
  margin-top: 5px;
}

.reference-notice {
  background: var(--bg-light);
  border-radius: var(--radius);
  padding: 20px 25px;
  margin: 40px 0 30px;
}

.reference-notice h3 {
  font-size: 1rem;
  color: var(--text-color);
  margin-bottom: 12px;
}

.reference-notice ul {
  list-style: disc;
  padding-left: 20px;
}

.reference-notice li {
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 6px;
}

@media (max-width: 768px) {
  .reference-item {
    gap: 14px;
    padding: 20px 0;
  }

  .reference-number {
    width: 32px;
    height: 32px;
    font-size: 0.9rem;
  }

  .reference-body h2 {
    font-size: 1rem;
  }
}

.hihoji-download {
  margin: 25px 0 35px;
}

.hihoji-categories {
  margin-bottom: 30px;
}

.hihoji-categories h2 {
  font-size: 1.15rem;
  color: var(--primary-color);
  border-bottom: 3px solid var(--primary-color);
  padding-bottom: 10px;
  margin-bottom: 15px;
}

.hihoji-category-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.hihoji-category-item {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.95rem;
  color: var(--text-color);
}

.hihoji-category-item:first-child {
  border-top: 1px solid var(--border-color);
}

.hihoji-cat-num {
  color: var(--primary-color);
  font-weight: 700;
  margin-right: 8px;
}

.merchant-intro {
  margin-bottom: 40px;
  line-height: 1.9;
}

.merchant-intro p {
  font-size: 0.95rem;
  color: var(--text-color);
  margin-bottom: 6px;
}

.merchant-highlight {
  font-weight: 700;
  color: var(--primary-color) !important;
  font-size: 1.05rem !important;
  margin-top: 15px !important;
}

.merchant-source {
  font-size: 0.85rem !important;
  color: var(--text-light) !important;
}

.merchant-section {
  margin-bottom: 50px;
}

.merchant-section-title {
  font-size: 1.3rem;
  color: var(--primary-color);
  border-bottom: 3px solid var(--primary-color);
  padding-bottom: 10px;
  margin-bottom: 20px;
}

.merchant-section-desc {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 8px;
}

.merchant-resource {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 25px;
  margin-bottom: 20px;
}

.merchant-resource h3 {
  font-size: 1.05rem;
  color: var(--text-color);
  margin-bottom: 10px;
}

.merchant-resource p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 8px;
}

.merchant-resource-link {
  margin-top: 15px;
}

.merchant-videos {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 15px;
  margin-top: 20px;
}

.merchant-video-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  text-decoration: none;
  transition: background 0.2s, box-shadow 0.2s;
}

.merchant-video-card:hover {
  background: var(--bg-light);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.merchant-video-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  background: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
}

.merchant-video-info h4 {
  font-size: 0.9rem;
  color: var(--text-color);
  margin-bottom: 4px;
}

.merchant-video-link {
  font-size: 0.8rem;
  color: var(--primary-color);
}

.merchant-case {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 25px;
  margin-top: 20px;
}

.merchant-case h3 {
  font-size: 1.1rem;
  color: var(--text-color);
  margin-bottom: 15px;
}

.merchant-case > p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 10px;
}

.merchant-case-link {
  margin: 20px 0;
}

.merchant-case-company {
  background: var(--bg-light);
  border-radius: var(--radius);
  padding: 20px;
  margin-top: 20px;
}

.merchant-case-company h4 {
  font-size: 1rem;
  color: var(--text-color);
  margin-bottom: 12px;
}

.merchant-case-company table {
  width: 100%;
  border-collapse: collapse;
}

.merchant-case-company th {
  text-align: left;
  font-weight: 500;
  color: var(--text-light);
  padding: 6px 15px 6px 0;
  font-size: 0.88rem;
  width: 130px;
}

.merchant-case-company td {
  color: var(--text-color);
  padding: 6px 0;
  font-size: 0.88rem;
}

@media (max-width: 768px) {
  .merchant-videos {
    grid-template-columns: 1fr;
  }
}

.cert-content {
  line-height: 1.8;
}

.cert-method {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 20px;
}

.cert-method-header {
  background: var(--primary-color);
  padding: 15px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.cert-method-num {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  background: white;
  color: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
}

.cert-method-header h2 {
  color: white;
  font-size: 1.1rem;
  margin: 0;
}

.cert-method-body {
  padding: 20px;
}

.cert-method-body p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 10px;
}

.cert-method-link {
  margin-top: 15px;
}

.cert-scan {
  background: var(--bg-light);
  border-radius: var(--radius);
  padding: 25px;
  margin-top: 30px;
  margin-bottom: 30px;
}

.cert-scan h2 {
  font-size: 1.15rem;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.cert-scan p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 10px;
}

.overview-content {
  line-height: 1.9;
}

.overview-heading {
  font-size: 1.3rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--primary-color);
}

.overview-content p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.9;
  margin-bottom: 18px;
  text-align: justify;
}

.reference-version {
  font-size: 0.85rem;
  color: #999;
  margin-top: 8px;
}

.qsa-external-link {
  margin: 20px 0 25px;
  text-align: center;
}

.qsa-credit {
  font-size: 0.85rem;
  color: #999;
  margin-top: 30px;
  text-align: right;
}

.required-target-list {
  background: var(--bg-light);
  border-left: 4px solid var(--primary-color);
  padding: 15px 20px;
  margin-bottom: 30px;
  border-radius: 0 var(--radius) var(--radius) 0;
}

.required-target-list p {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-color);
  margin-bottom: 0;
}

.required-industry-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 30px;
}

.required-industry-card {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
}

.required-industry-label {
  font-weight: 700;
  color: var(--primary-color);
  font-size: 1rem;
  margin-bottom: 8px;
}

.required-industry-card p {
  font-size: 0.93rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .required-industry-grid {
    grid-template-columns: 1fr;
  }
}

.faq-category-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
  padding: 15px 20px;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  position: sticky;
  top: 100px;
  z-index: 90;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.faq-nav-link {
  display: inline-block;
  padding: 8px 18px;
  background: #e65100;
  color: white;
  border-radius: 4px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background 0.2s;
}

.faq-nav-link:hover {
  background: #bf360c;
}

.faq-nav-link.disabled {
  background: #ccc;
  color: #888;
  cursor: not-allowed;
  pointer-events: none;
}

.faq-section {
  margin-bottom: 40px;
  scroll-margin-top: 340px;
}

.faq-category-title {
  font-size: 1.3rem;
  color: #fff;
  background: #e65100;
  padding: 12px 20px;
  border-radius: var(--radius);
  margin-bottom: 15px;
}

.faq-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  margin-bottom: 10px;
  overflow: hidden;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background: var(--bg-light);
  cursor: pointer;
  transition: background 0.2s;
  gap: 15px;
}

.faq-question:hover {
  background: #fff3e0;
}

.faq-q-text {
  font-weight: 500;
  font-size: 0.95rem;
  line-height: 1.6;
  flex: 1;
}

.faq-toggle {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #e65100;
  color: white;
  border-radius: 50%;
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1;
  transition: transform 0.3s;
}

.faq-question.active .faq-toggle {
  transform: rotate(45deg);
}

.faq-answer {
  display: none;
  padding: 20px;
  line-height: 1.8;
  font-size: 0.92rem;
  color: var(--text-color);
  border-top: 1px solid var(--border-color);
  background: var(--bg-white);
}

.faq-answer.active {
  display: block;
}

.faq-answer p {
  margin-bottom: 10px;
}

.faq-answer ul {
  padding-left: 20px;
  margin-bottom: 10px;
}

.faq-answer li {
  margin-bottom: 5px;
}

.faq-answer a {
  color: var(--secondary-color);
  word-break: break-all;
}

.faq-answer a:hover {
  text-decoration: underline;
}

.faq-note {
  font-size: 0.9em;
  color: #878B8C;
}

@media (max-width: 768px) {
  .faq-category-nav {
    gap: 6px;
  }

  .faq-nav-link {
    padding: 6px 14px;
    font-size: 0.85rem;
  }

  .faq-question {
    padding: 14px 16px;
  }

  .faq-q-text {
    font-size: 0.9rem;
  }

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

.sponsor-tier-title {
  font-size: 1.2rem;
  font-weight: 700;
  padding: 12px 20px;
  border-radius: var(--radius);
  margin-bottom: 24px;
  color: #fff;
}

.sponsor-tier-platinum {
  background: linear-gradient(135deg, #8e7cc3, #b4a7d6);
}

.sponsor-tier-silver {
  background: linear-gradient(135deg, #888, #aaa);
  margin-top: 40px;
}

.sponsor-detail-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.sponsor-detail-item {
  display: flex;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid #eee;
  align-items: center;
}

.sponsor-detail-item:last-child {
  border-bottom: none;
}

.sponsor-detail-logo {
  flex-shrink: 0;
  width: 180px;
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sponsor-detail-logo img {
  width: 100%;
  height: 48px;
  object-fit: contain;
}

.sponsor-detail-info h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.sponsor-detail-info h3 a {
  color: var(--primary-color);
  text-decoration: none;
}

.sponsor-detail-info h3 a:hover {
  text-decoration: underline;
}

.sponsor-detail-url {
  font-size: 0.85rem;
  margin-bottom: 10px;
}

.sponsor-detail-url a {
  color: #1a73e8;
  text-decoration: none;
}

.sponsor-detail-url a:hover {
  text-decoration: underline;
}

.sponsor-detail-info p {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text-color);
}

.sponsor-detail-contact {
  margin-top: 8px;
  font-size: 0.9rem;
}

.sponsor-detail-contact a {
  color: var(--primary-color);
}

.sponsor-silver-item {
  padding: 16px 0;
  gap: 44px;
}

.sponsor-silver-item .sponsor-detail-logo {
  width: 120px;
  min-height: 60px;
}

.sponsor-silver-item .sponsor-detail-logo img {
  height: 44px;
}

.sponsor-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--primary-color);
}

.sponsor-page-header .page-title {
  margin-bottom: 0;
  border-bottom: none;
  padding-bottom: 0;
}

.sponsor-page-header .btn-outline {
  font-size: 0.82rem;
  padding: 6px 16px;
}

@media (max-width: 768px) {
  .sponsor-detail-item {
    flex-direction: column;
    gap: 12px;
    align-items: center;
    text-align: center;
  }

  .sponsor-detail-logo {
    width: 140px;
  }

  .sponsor-silver-item .sponsor-detail-logo {
    width: 120px;
  }
}

.seminar-date-label {
  font-size: 0.95rem;
  color: #4a9bab;
  margin-bottom: 4px;
}

.seminar-title {
  color: #4a9bab;
  font-size: 1.3rem;
  font-weight: 400;
  line-height: 1.6;
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 24px;
}

.seminar-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
  table-layout: fixed;
}

.seminar-table th,
.seminar-table td {
  border: 1px solid #ddd;
  padding: 12px 16px;
  text-align: left;
  vertical-align: top;
  line-height: 1.7;
}

.seminar-table th {
  background-color: #f5f5f5;
  width: 160px;
  font-weight: 500;
}

.topic-highlight-box {
  border: 1px solid #706E6E;
  padding: 16px;
  margin: 16px 0;
}

.seminar-program {
  margin-top: 16px;
}

.seminar-hero-image {
  margin-bottom: 25px;
  text-align: center;
}

.seminar-hero-image.has-caption {
  margin-bottom: 6px;
}

.image-caption {
  text-align: center;
  font-size: 0.85rem;
  color: #666;
  margin-bottom: 25px;
}

.web-badge {
  display: inline-block;
  background: #1a73e8;
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 3px;
  margin-left: 6px;
  vertical-align: middle;
  line-height: 1.2;
}

/* ===== Time-grouped program layout ===== */
.time-program {
  margin: 30px 0;
}

.time-block {
  margin-bottom: 32px;
  border: 1px solid #e0e6ee;
  border-radius: 10px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.time-block-header {
  background: linear-gradient(135deg, var(--primary-color, #1e3a5f) 0%, #2c5282 100%);
  color: #fff;
  padding: 14px 22px;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.time-block-header .clock-icon {
  font-size: 1.3rem;
  line-height: 1;
}

.time-block-header .time-label {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  font-family: 'Noto Sans JP', sans-serif;
}

.time-block-header .time-meta {
  font-size: 0.85rem;
  opacity: 0.9;
  margin-left: auto;
  font-weight: 500;
}

.time-block-body {
  padding: 18px;
}

.time-block.single .time-block-body {
  padding: 14px 22px;
  font-size: 0.95rem;
  color: #555;
}

.session-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

@media (max-width: 720px) {
  .session-grid {
    grid-template-columns: 1fr;
  }
  .time-block-header {
    padding: 12px 16px;
  }
  .time-block-header .time-label {
    font-size: 1.1rem;
  }
  .time-block-header .time-meta {
    margin-left: 0;
    width: 100%;
  }
}

.session-card {
  background: #f7f9fc;
  border: 1px solid #e3e8ef;
  border-left: 4px solid var(--primary-color, #1e3a5f);
  border-radius: 6px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.session-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transform: translateY(-1px);
}

.session-card .session-no {
  display: inline-block;
  background: var(--primary-color, #1e3a5f);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 999px;
  align-self: flex-start;
  letter-spacing: 0.04em;
}

.session-card .session-title {
  font-size: 0.98rem;
  font-weight: 700;
  color: #1f2937;
  line-height: 1.5;
  margin: 0;
}

.session-card .session-speaker {
  font-size: 0.85rem;
  color: #5a6878;
  margin: 0;
  line-height: 1.5;
}

.session-card .session-speaker::before {
  content: "👤";
  margin-right: 4px;
  opacity: 0.6;
}

.session-card .session-speaker.no-icon::before {
  content: none;
}

.session-card .session-desc {
  font-size: 0.85rem;
  color: #4a5568;
  line-height: 1.65;
  margin: 0;
}

.session-card .session-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.venue-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 3px;
  background: #e8eef5;
  color: #2c5282;
  border: 1px solid #cfd9e6;
}

.venue-badge.hall {
  background: #fef3e2;
  color: #92581b;
  border-color: #f4d8a6;
}

.full-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 3px;
  background: #fee2e2;
  color: #c53030;
  border: 1px solid #fbb6b6;
}

.time-block.keynote .time-block-header {
  background: linear-gradient(135deg, #b8860b 0%, #d4a52a 100%);
}

.time-block.break .time-block-header {
  background: linear-gradient(135deg, #6b7280 0%, #9ca3af 100%);
}

.seminar-hero-image img {
  max-width: 721px;
  width: 100%;
  height: auto;
  border-radius: 4px;
}

.note-text {
  font-size: 0.85rem;
  color: #888;
}

.ssc-links {
  margin: 20px 0;
}

.ssc-links p {
  margin-bottom: 8px;
}

.external-link {
  color: var(--primary-color);
  font-weight: 500;
  text-decoration: none;
}

.external-link:hover {
  text-decoration: underline;
}

.seminar-item {
  display: flex;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid #eee;
  align-items: flex-start;
}

.seminar-item:last-child {
  border-bottom: none;
}

.seminar-time {
  font-weight: 700;
  font-size: 1rem;
  color: var(--primary-color);
  white-space: nowrap;
  flex-shrink: 0;
  line-height: 1.5;
  min-width: 110px;
  text-align: right;
}

.seminar-program .seminar-content {
  padding: 0 20px;
}

.venue-guide-single {
  margin-bottom: 20px;
}

.venue-guide-single img {
  float: left;
  margin-right: 15px;
  margin-bottom: 10px;
  max-width: 120px;
}

.venue-guide-single::after {
  content: "";
  display: table;
  clear: both;
}

.seminar-content h3 {
  font-size: 1rem;
  margin-top: 0;
  margin-bottom: 6px;
  color: #333;
}

.seminar-content ul {
  padding-left: 24px;
  margin-top: 4px;
}

.seminar-speaker {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 2px;
}

.status-closed {
  display: inline-block;
  background-color: #dc3545;
  color: #fff;
  font-size: 0.8rem;
  font-weight: bold;
  padding: 1px 8px;
  border-radius: 3px;
}

.notice-red {
  color: #dc3545;
}

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

.topic-detail-body h3 img[src$=".svg"],
.topic-detail-body p > img[src$=".svg"] {
  display: inline;
  height: 1em;
  width: auto;
  max-width: none;
  margin: 0;
  vertical-align: middle;
}

.seminar-label {
  display: inline-block;
  background-color: #e8f4f8;
  color: #1a6b8a;
  font-size: 0.8rem;
  font-weight: 500;
  padding: 2px 10px;
  border-radius: 3px;
  margin-bottom: 6px;
}

.seminar-break {
  background-color: #f9f9f9;
  border-radius: 6px;
  padding: 16px;
}

.venue-info {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
}

.venue-name {
  font-weight: 500;
}

.venue-address {
  font-size: 0.9rem;
  color: #555;
}

.btn-map {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background-color: #fff;
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
  padding: 5px 14px;
  border-radius: 4px;
  font-size: 0.82rem;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.2s, color 0.2s;
}

.btn-map:hover {
  background-color: var(--primary-color);
  color: #fff;
}

.venue-access {
  font-size: 0.9rem;
  line-height: 1.8;
  color: #555;
}

.speaker-profile {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  margin-bottom: 24px;
  padding: 16px;
  background-color: #f9f9f9;
  border-radius: 6px;
}

.speaker-photo img {
  width: 120px;
  height: auto;
  border-radius: 4px;
}

.speaker-info {
  flex: 1;
}

.venue-guide {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  margin-bottom: 16px;
}

.venue-guide-photo {
  flex-shrink: 0;
  max-width: 50%;
}

.venue-guide-photo img {
  width: 100%;
  height: auto;
  border-radius: 4px;
}

.venue-guide-info {
  flex: 1;
}

.panelist-list {
  margin-bottom: 24px;
}

.panelist-item {
  padding: 12px 16px;
  border-left: 3px solid var(--primary-color);
  margin-bottom: 12px;
  background-color: #f9f9f9;
  border-radius: 0 6px 6px 0;
}

.seminar-content-list {
  padding-left: 20px;
  line-height: 2;
}

.seminar-content-list ul {
  padding-left: 20px;
  margin-top: 4px;
}

.seminar-content-list li {
  margin-bottom: 4px;
}

@media (max-width: 768px) {
  .seminar-table th {
    width: 100px;
    font-size: 0.85rem;
  }

  .seminar-table td {
    font-size: 0.9rem;
  }

  .seminar-item {
    flex-direction: column;
    gap: 6px;
  }

  .venue-info {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .speaker-profile {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .speaker-photo img {
    width: 100px;
  }

  .venue-guide {
    flex-direction: column;
  }

  .venue-guide-photo {
    max-width: 100%;
  }
}

.contact-form {
  max-width: 700px;
  margin: 0 auto 40px;
}

.form-group {
  margin-bottom: 24px;
}

.form-fieldset {
  border: none;
  padding: 0;
  margin: 0 0 24px;
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.form-label.required::after {
  content: '必須';
  display: inline-block;
  background: var(--secondary-color);
  color: white;
  font-size: 0.7rem;
  font-weight: 500;
  padding: 1px 6px;
  border-radius: 3px;
  margin-left: 8px;
  vertical-align: middle;
}

.form-sublabel {
  display: block;
  font-size: 0.8rem;
  color: var(--text-light);
  margin-bottom: 4px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 0.95rem;
  font-family: inherit;
  background: white;
  transition: border-color 0.2s;
  box-sizing: border-box;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(42, 100, 150, 0.15);
}

.form-input.form-error,
.form-select.form-error,
.form-textarea.form-error {
  border-color: #e74c3c;
  box-shadow: 0 0 0 2px rgba(231, 76, 60, 0.15);
}

.form-error-msg {
  color: #e74c3c;
  font-size: 0.8rem;
  margin-top: 6px;
  font-weight: 500;
}

.form-input-short {
  width: 80px;
}

.form-zip,
.form-phone {
  display: flex;
  align-items: center;
  gap: 6px;
}

.form-separator {
  font-size: 1.1rem;
  color: var(--text-light);
}

.form-row {
  margin-bottom: 12px;
}

.form-row:last-child {
  margin-bottom: 0;
}

.form-col {
  flex: 1;
}

.form-col-full {
  width: 100%;
}

.form-name-row {
  display: flex;
  gap: 16px;
}

.form-select {
  max-width: 250px;
}

.form-textarea {
  resize: vertical;
  min-height: 150px;
}

.form-hint {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-top: 4px;
}

.form-radio-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-radio {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 0.95rem;
}

.form-radio input[type="radio"] {
  accent-color: var(--primary-color);
  width: 16px;
  height: 16px;
}

.form-checkbox-group {
  text-align: center;
}

.form-checkbox {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 500;
}

.form-checkbox input[type="checkbox"] {
  accent-color: var(--primary-color);
  width: 18px;
  height: 18px;
}

.form-privacy {
  background: var(--bg-light);
  border-radius: 8px;
  padding: 20px 24px;
  margin-bottom: 24px;
}

.form-privacy h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.form-privacy ol {
  padding-left: 20px;
  margin: 0;
}

.form-privacy li {
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--text-color);
  margin-bottom: 4px;
}

.form-submit {
  text-align: center;
  margin-top: 32px;
}

.form-submit .btn,
.confirm-buttons .btn {
  border: none;
  cursor: pointer;
}

.contact-confirm {
  max-width: 700px;
  margin: 0 auto 40px;
}

.confirm-header {
  margin-bottom: 30px;
}

.confirm-notice {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-color);
  text-align: center;
  background: #fff8f0;
  border: 1px solid var(--secondary-color);
  border-radius: 8px;
  padding: 16px 20px;
}

.confirm-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 30px;
}

.confirm-table th,
.confirm-table td {
  padding: 14px 16px;
  border-bottom: 1px solid #e0e0e0;
  font-size: 0.95rem;
  text-align: left;
  vertical-align: top;
}

.confirm-table th {
  width: 160px;
  background: var(--bg-light);
  font-weight: 600;
  color: var(--text-dark);
  white-space: nowrap;
}

.confirm-table td {
  color: var(--text-color);
}

.confirm-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
}

@media (max-width: 480px) {
  .confirm-table th,
  .confirm-table td {
    display: block;
    width: 100%;
    padding: 10px 14px;
  }

  .confirm-table th {
    border-bottom: none;
    padding-bottom: 4px;
  }

  .confirm-table td {
    padding-top: 4px;
  }

  .confirm-buttons {
    flex-direction: column;
    gap: 12px;
  }

  .confirm-buttons .btn {
    width: 100%;
    text-align: center;
  }
}

.contact-complete {
  text-align: center;
  padding: 60px 20px;
}

.complete-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--accent-color);
  color: white;
  font-size: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.contact-complete h2 {
  font-size: 1.4rem;
  color: var(--text-dark);
  margin-bottom: 16px;
}

.contact-complete p {
  font-size: 0.95rem;
  color: var(--text-color);
  line-height: 1.8;
  margin-bottom: 30px;
}

@media (max-width: 480px) {
  .form-name-row {
    flex-direction: column;
    gap: 12px;
  }

  .form-input-short {
    width: 70px;
  }

  .form-privacy {
    padding: 16px;
  }
}

.login-modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 10000;
  justify-content: center;
  align-items: center;
}

.login-modal {
  background: #fff;
  border-radius: 12px;
  padding: 40px;
  width: 90%;
  max-width: 420px;
  position: relative;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.login-modal-close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: none;
  border: none;
  font-size: 28px;
  color: #999;
  cursor: pointer;
  line-height: 1;
  padding: 0;
}

.login-modal-close:hover {
  color: #333;
}

.login-modal-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 24px;
  text-align: center;
}

.login-field {
  margin-bottom: 16px;
}

.login-field label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-color);
  margin-bottom: 6px;
}

.login-field .form-input {
  width: 100%;
  box-sizing: border-box;
}

.login-error {
  color: #d32f2f;
  font-size: 0.85rem;
  text-align: center;
  margin-bottom: 12px;
}

.login-btn {
  width: 100%;
  margin-top: 8px;
  border: none;
  cursor: pointer;
}

.member-content {
  padding: 10px 0 40px;
}

.member-section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--primary-color);
  margin-bottom: 30px;
}

.member-section-header .page-title {
  margin-bottom: 0;
  border-bottom: none;
  padding-bottom: 0;
}

.member-section-header .btn-outline {
  font-size: 0.82rem;
  padding: 6px 16px;
}


.member-intro {
  color: var(--text-light);
  margin-bottom: 32px;
  font-size: 0.95rem;
  line-height: 1.8;
}

.material-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.material-item {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border-color);
}

.material-item:last-child {
  border-bottom: none;
}

.material-item-body {
  flex: 1;
  min-width: 0;
}

.material-item-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
  width: fit-content;
}

.material-badge-excel {
  background: #e8f5e9;
  color: #2e7d32;
}

.material-badge-pdf {
  background: #fce4ec;
  color: #c62828;
}

.material-badge-link {
  background: #e3f2fd;
  color: #1565c0;
}

.material-badge-video {
  background: #fff3e0;
  color: #e65100;
}

.material-item-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 6px;
  line-height: 1.5;
}

.material-item-title a {
  color: var(--text-color);
  text-decoration: none;
  transition: color 0.2s;
}

.material-item-title a:hover {
  color: var(--secondary-color);
  text-decoration: underline;
}

.material-item-desc {
  font-size: 0.83rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 0;
}

.material-item-desc a {
  color: var(--primary-color);
  text-decoration: underline;
}

.material-item-actions {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  padding-top: 2px;
}

.material-item-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-color);
  color: #fff;
  padding: 8px 18px;
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 500;
  transition: var(--transition);
  white-space: nowrap;
}

.material-item-btn:hover {
  background: var(--primary-dark);
  color: #fff;
}

.material-item-btn-outline {
  background: transparent;
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
}

.material-item-btn-outline:hover {
  background: var(--primary-color);
  color: #fff;
}

.material-video-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.material-video-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: #f8f9fa;
  border-radius: 6px;
  text-decoration: none;
  color: var(--text-color);
  font-size: 0.85rem;
  transition: var(--transition);
}

.material-video-link:hover {
  background: #e8f4f8;
  color: var(--primary-color);
}

.material-video-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: var(--secondary-color);
  color: #fff;
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.material-notice {
  background: #fafafa;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 16px;
}

.material-notice h3 {
  font-size: 0.9rem;
  color: var(--text-color);
  margin-bottom: 12px;
}

.material-notice ul {
  list-style: none;
  padding: 0;
}

.material-notice li {
  font-size: 0.8rem;
  color: var(--text-light);
  line-height: 1.7;
  padding-left: 16px;
  position: relative;
  margin-bottom: 6px;
}

.material-notice li::before {
  content: "※";
  position: absolute;
  left: 0;
  color: var(--secondary-color);
}

@media (max-width: 768px) {
  .login-modal {
    padding: 30px 24px;
  }

  .material-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 14px 0;
  }

  .material-item-actions {
    align-items: flex-end;
    align-self: flex-end;
  }

}

.vendor-content {
  max-width: 800px;
  margin: 0 auto;
}

.vendor-docs {
  margin: 24px 0 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-left: 8px;
}

.vendor-doc-item {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}

.vendor-doc-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 700;
  flex-shrink: 0;
}

.vendor-doc-pdf {
  background: #fce4ec;
  color: #c62828;
}

.vendor-doc-word {
  background: #e3f2fd;
  color: #1565c0;
}

.vendor-doc-excel {
  background: #e8f5e9;
  color: #2e7d32;
}

.vendor-doc-pptx {
  background: #fff3e0;
  color: #e65100;
}

.vendor-doc-link {
  color: var(--primary-color);
  text-decoration: none;
  font-size: 0.9rem;
  line-height: 1.6;
}

.vendor-doc-link:hover {
  text-decoration: underline;
}

.vendor-section {
  margin-bottom: 32px;
}

.vendor-section-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 20px;
}

.vendor-company {
  margin-bottom: 20px;
  padding-left: 8px;
}

.vendor-company-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 8px;
}

.vendor-info {
  font-size: 0.9rem;
  color: var(--text-color);
  line-height: 1.8;
  margin-bottom: 24px;
}

.vendor-sub-company {
  margin-bottom: 16px;
  padding-left: 16px;
}

.vendor-sub-name {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 4px;
}

.vendor-sub-desc {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 12px;
}

.vendor-photos {
  display: flex;
  gap: 16px;
  margin-bottom: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.vendor-photo {
  max-width: 48%;
  height: auto;
  border-radius: 4px;
}

.vendor-photo-caption {
  text-align: center;
  font-size: 0.85rem;
  color: #666;
  margin-bottom: 24px;
  line-height: 1.6;
}

@media (max-width: 600px) {
  .vendor-photos {
    flex-direction: column;
    align-items: center;
  }
  .vendor-photo {
    max-width: 100%;
  }
}

.vendor-agenda-list {
  margin: 0 0 20px 20px;
  padding: 0;
  line-height: 2;
  color: #333;
}

.vendor-agenda-list li {
  margin-bottom: 4px;
}

.vendor-back {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  background: var(--primary-color);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 1.1rem;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--secondary-color);
  transform: translateY(-3px);
}

@media (max-width: 480px) {
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 42px;
    height: 42px;
    font-size: 1rem;
  }
}