body {
      font-family: Arial, sans-serif;
      line-height: 1.6;
      margin: 0;
      background: #f3f3f3;
      color: #222;
    }

    header {
      background: #f5f5f5;
      padding: 0;
      margin: 0;
    }


.page-title {
      background: #f7f9fa;
      border-left: 6px solid #22b8aa;
      padding: 24px;
      border-radius: 8px;
      margin-bottom: 34px;
    }

    .page-title h1 {
      margin: 0 0 8px 0;
      color: #f28c18;
      font-size: 38px;
      line-height: 1.2;
    }

    .page-title p {
      margin: 0;
      color: #555;
      font-size: 17px;
      max-width: 850px;
    }

    .faq-layout {
      display: grid;
      grid-template-columns: 260px 1fr;
      gap: 24px;
      align-items: start;
    }

    .faq-sidebar {
      position: sticky;
      top: 82px;
      background: #f8fbfb;
      border: 1px solid #dfeaea;
      border-radius: 10px;
      padding: 18px;
    }

    .faq-sidebar h3 {
      margin: 0 0 12px 0;
      color: #111827;
      font-size: 18px;
    }

    .faq-sidebar a {
      display: block;
      color: #0b7c74;
      padding: 8px 0;
      border-bottom: 1px solid #e5eeee;
      font-size: 14px;
    }

    .faq-sidebar a:last-child {
      border-bottom: none;
    }

    .faq-group {
      margin-bottom: 34px;
    }

    .faq-group h2 {
      margin-top: 0;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid #e5e7eb;
      border-radius: 10px;
      margin-bottom: 14px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    }

    .faq-question {
      width: 100%;
      background: #ffffff;
      border: 0;
      padding: 18px 20px;
      text-align: left;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      color: #111827;
      font-size: 17px;
      font-weight: bold;
      font-family: Arial, sans-serif;
    }

    .faq-question:hover {
      background: #f8fcfc;
      color: #0b7c74;
    }

    .faq-question i {
      color: #22b8aa;
      transition: transform 0.2s ease;
      flex-shrink: 0;
    }

    .faq-item.open .faq-question i {
      transform: rotate(180deg);
    }

    .faq-answer {
      display: none;
      padding: 0 20px 20px 20px;
      color: #444;
      line-height: 1.7;
      border-top: 1px solid #edf0f3;
      background: #fbfcfd;
    }

    .faq-item.open .faq-answer {
      display: block;
    }

    .faq-answer p {
      margin: 14px 0 0 0;
    }

    .faq-answer ul {
      margin: 14px 0 0 0;
      padding-left: 22px;
    }

    .faq-answer strong {
      color: #111827;
    }

    .support-box {
      background: #f7f9fa;
      border-left: 5px solid #f28c18;
      padding: 18px;
      border-radius: 8px;
      margin-top: 28px;
    }

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

      .faq-sidebar {
        position: static;
      }

      .page-title h1 {
        font-size: 32px;
      }
    }

    .register-link {
  color: #f28c18 !important;
}

.register-link:hover {
  color: #ff9f2f !important;
}

    .page-intro {
      background: #f7f9fa;
      border-left: 6px solid #22b8aa;
      padding: 22px;
      border-radius: 8px;
      margin-bottom: 28px;
    }

    .page-nav {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin: 18px 0 28px;
    }

    .page-nav a {
      background: #ffffff;
      border: 1px solid #dcdcdc;
      border-radius: 8px;
      padding: 9px 14px;
      color: #333 !important;
      text-decoration: none;
      font-weight: 700;
    }

    .page-nav a:hover {
      color: #0b7c74 !important;
      border-color: #22b8aa;
      background: #f8fcfc;
    }

    .rules-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 18px;
      margin-top: 22px;
    }

    .rule-card {
      background: #ffffff;
      border: 1px solid #e5e7eb;
      border-radius: 10px;
      padding: 20px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.04);
      transition: all 0.2s ease;
    }

    .rule-card:hover {
      transform: translateY(-2px);
      border-color: #22b8aa;
      box-shadow: 0 6px 16px rgba(0,0,0,0.06);
    }

    .rule-card h3 {
      margin: 0 0 10px 0;
      color: #111827;
      font-size: 19px;
    }

    .rule-icon {
      width: 46px;
      height: 46px;
      background: #dff3f1;
      color: #0b7c74;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 21px;
      margin-bottom: 14px;
    }

    .subtask-rule {
      background: #f7f9fa;
      border-left: 6px solid #22b8aa;
      padding: 24px;
      margin: 28px 0;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    }

    .subtask-rule-header {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 14px;
    }

    .subtask-rule-number {
      background: linear-gradient(135deg, #22b8aa, #1a9489);
      color: white;
      width: 54px;
      height: 54px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      font-size: 24px;
      flex-shrink: 0;
      box-shadow: 0 2px 6px rgba(0,0,0,0.2);
    }

    .subtask-rule-title h3 {
      margin: 0;
      color: #22b8aa;
    }

    .subtask-rule-title span {
      color: #666;
      font-weight: bold;
      font-size: 14px;
    }

    .format-box {
      background: #ffffff;
      border-top: 4px solid #f28c18;
      padding: 16px;
      border-radius: 6px;
      box-shadow: 0 1px 5px rgba(0,0,0,0.05);
      margin-top: 16px;
    }

    .checklist {
      counter-reset: item;
      list-style: none;
      padding-left: 0;
    }

    .checklist li {
      counter-increment: item;
      background: #ffffff;
      border: 1px solid #e5e7eb;
      border-left: 5px solid #22b8aa;
      border-radius: 8px;
      padding: 14px 16px;
      margin-bottom: 12px;
      box-shadow: 0 1px 5px rgba(0,0,0,0.035);
    }

    .checklist li::before {
      content: counter(item);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 28px;
      height: 28px;
      margin-right: 10px;
      border-radius: 50%;
      background: #22b8aa;
      color: white;
      font-weight: bold;
    }

    .notice-box {
      background: #fff8ef;
      border-left: 6px solid #f28c18;
      padding: 18px;
      border-radius: 8px;
      margin: 20px 0;
    }

    .page-intro {
      background: #f7f9fa;
      border-left: 6px solid #22b8aa;
      padding: 22px;
      border-radius: 8px;
      margin-bottom: 28px;
    }

    .guidelines-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 18px;
      margin-top: 22px;
    }

    .guideline-card {
      background: #ffffff;
      border: 1px solid #e5e7eb;
      border-radius: 10px;
      padding: 20px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.04);
      transition: all 0.2s ease;
    }

    .guideline-card:hover {
      transform: translateY(-2px);
      border-color: #22b8aa;
      box-shadow: 0 6px 16px rgba(0,0,0,0.06);
    }

    .guideline-card h3 {
      margin: 0 0 10px 0;
      color: #111827;
      font-size: 19px;
    }

    .guideline-icon {
      width: 46px;
      height: 46px;
      background: #dff3f1;
      color: #0b7c74;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 21px;
      margin-bottom: 14px;
    }

    .structure-list {
      counter-reset: item;
      list-style: none;
      padding-left: 0;
    }

    .structure-list li {
      counter-increment: item;
      background: #ffffff;
      border: 1px solid #e5e7eb;
      border-left: 5px solid #22b8aa;
      border-radius: 8px;
      padding: 14px 16px;
      margin-bottom: 12px;
      box-shadow: 0 1px 5px rgba(0,0,0,0.035);
    }

    .structure-list li::before {
      content: counter(item);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 28px;
      height: 28px;
      margin-right: 10px;
      border-radius: 50%;
      background: #22b8aa;
      color: white;
      font-weight: bold;
    }

    .principles-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 16px;
      margin-top: 18px;
    }

    .principle-item {
      background: #f8fbfb;
      border: 1px solid #dfeaea;
      border-radius: 10px;
      padding: 18px;
    }

    .principle-item h4 {
      color: #111827;
      margin-bottom: 6px;
    }

    .notice-box {
      background: #fff8ef;
      border-left: 6px solid #f28c18;
      padding: 18px;
      border-radius: 8px;
      margin: 20px 0;
    }

    .page-nav {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin: 18px 0 28px;
    }

    .page-nav a {
      background: #ffffff;
      border: 1px solid #dcdcdc;
      border-radius: 8px;
      padding: 9px 14px;
      color: #333 !important;
      text-decoration: none;
      font-weight: 700;
    }

    .page-nav a:hover {
      color: #0b7c74 !important;
      border-color: #22b8aa;
      background: #f8fcfc;
    }

    .code-sample {
      background: #f1f1f1;
      border-radius: 6px;
      padding: 14px;
      overflow-x: auto;
      font-size: 14px;
      line-height: 1.5;
    }

    .logo-container {
      max-width: 1100px;
      margin: 0 auto;
      background: white;
      padding: 14px 18px;
      box-sizing: border-box;
    }

    .logo-container img {
      width: 100%;
      max-width: 700px;
      height: auto;
      display: block;
      margin: 0 auto;
      image-rendering: auto;
      filter: contrast(1.02) saturate(1.02);
      border-radius: 2px;
    }

    nav {
      background: #4b4b4b;
      padding: 12px;
      text-align: center;
      position: sticky;
      top: 0;
      z-index: 100;
    }

    nav a {
      color: white;
      margin: 0 12px;
      text-decoration: none;
      font-weight: bold;
    }

    nav a:hover {
      color: #22b8aa;
    }

    .conference-link {
      background: linear-gradient(135deg, #22b8aa, #1a9489);
      color: white !important;
      padding: 10px 18px;
      border-radius: 6px;
      margin-right: 22px;
      display: inline-block;
      font-weight: bold;
      font-size: 15px;
      border: 2px solid white;
      box-shadow: 0 2px 8px rgba(0,0,0,0.25);
      transition: all 0.25s ease;
    }

    .conference-link:hover {
      background: linear-gradient(135deg, #f28c18, #ffb347);
      color: white !important;
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(0,0,0,0.35);
    }

    main {
      max-width: 1050px;
      margin: 14px auto;
      padding: 25px;
      background: white;
    }

    section {
      margin-bottom: 45px;
    }

    h2 {
      color: #f28c18;
      border-bottom: 2px solid #f28c18;
      padding-bottom: 6px;
      font-size: 30px;
    }

    h3 {
      color: #22b8aa;
      font-size: 24px;
      margin-top: 30px;
    }

    h4 {
      color: #4b4b4b;
      margin-top: 0;
      margin-bottom: 8px;
      font-size: 18px;
    }

    .box {
      background: #f7f9fa;
      border-left: 5px solid #22b8aa;
      padding: 15px;
      margin: 15px 0;
    }

    .subtask-card {
      background: #f7f9fa;
      border-left: 6px solid #22b8aa;
      padding: 24px;
      margin: 32px 0;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    }

    .subtask-header {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 14px;
    }

    .subtask-icon {
      background: linear-gradient(135deg, #22b8aa, #1a9489);
      color: white;
      width: 54px;
      height: 54px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      font-size: 24px;
      flex-shrink: 0;
      box-shadow: 0 2px 6px rgba(0,0,0,0.2);
    }

    .subtask-title h3 {
      margin: 0;
      color: #22b8aa;
    }

    .subtask-title span {
      color: #666;
      font-weight: bold;
      font-size: 14px;
    }

    .subtask-grid {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 18px;
      margin-top: 18px;
    }

    .subtask-panel {
      background: white;
      border-top: 4px solid #f28c18;
      padding: 16px;
      border-radius: 6px;
      box-shadow: 0 1px 5px rgba(0,0,0,0.05);
    }
.overview-highlights {
  margin-top: 30px;

  display: flex;
  flex-direction: column;
  gap: 18px;
}

.overview-card {
  display: flex;
  align-items: flex-start;
  gap: 18px;

  background: #f8fbfb;

  border: 1px solid #dfeaea;
  border-radius: 10px;

  padding: 22px;

  transition: all 0.2s ease;
}

.overview-card:hover {
  transform: translateY(-2px);

  border-color: #22b8aa;

  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

.overview-icon {
  width: 52px;
  height: 52px;

  background: #dff3f1;

  border-radius: 10px;

  display: flex;
  align-items: center;
  justify-content: center;

  color: #0b7c74;

  font-size: 24px;

  flex-shrink: 0;
}

.overview-card h3 {
  margin: 0 0 6px 0;

  color: #111;

  font-size: 20px;
}

.overview-card p {
  margin: 0;

  color: #555;
  line-height: 1.6;
}

.resource-list {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: nowrap;

  gap: 14px;

  margin-top: 26px;
  overflow-x: auto;
}

.resource-item {
  display: flex;
  align-items: center;
  gap: 10px;

  background: #ffffff;

  padding: 10px 18px;

  border: 1px solid #dcdcdc;
  border-radius: 8px;

  text-decoration: none;
  color: #333 !important;

  font-size: 15px;
  font-weight: 600;

  transition: all 0.2s ease;

  white-space: nowrap;
}

.resource-item:hover {
  border-color: #22b8aa;
  background: #f8fcfc;

  transform: translateY(-2px);

  box-shadow: 0 3px 10px rgba(0,0,0,0.08);
}

.resource-icon {
  font-size: 18px;
  line-height: 1;
  color: #0b7c74;
}

    .resource-links {
      margin-top: 16px;
    }

    .resource-links a {
      display: inline-block;
      margin: 5px 8px 5px 0;
      padding: 8px 13px;
      background: #22b8aa;
      color: white !important;
      border-radius: 4px;
      font-size: 14px;
      text-decoration: none;
      font-weight: bold;
    }

    .resource-links a:hover {
      background: #f28c18;
      color: white !important;
    }

.timeline-list {
  background: #f7f9fa;
  border: 1px solid #dfeaea;
  border-radius: 8px;
  overflow: hidden;
  margin-top: 20px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  gap: 16px;
  align-items: center;

  padding: 18px 20px;

  border-bottom: 1px solid #dfeaea;
  background: white;
}

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

.timeline-icon {
  width: 34px;
  height: 34px;

  background: #0b7c74;

  border-radius: 50%;

  display: flex;
  align-items: center;
  justify-content: center;

  color: white;

  font-size: 15px;

  flex-shrink: 0;
}

.timeline-content h4 {
  margin: 0 0 4px 0;
  color: #111;
  font-size: 16px;
}

.timeline-content p {
  margin: 0;
  color: #555;
}

.timeline-date {
  background: #dff3f1;
  color: #006b63;

  padding: 7px 11px;
  border-radius: 5px;

  font-weight: bold;
  font-size: 14px;

  white-space: nowrap;
}

@media (max-width: 700px) {
  .timeline-item {
    grid-template-columns: 40px 1fr;
  }

  .timeline-date {
    grid-column: 2;
    width: fit-content;
    margin-top: 6px;
  }
}

.organizers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));

  gap: 18px;
  margin-top: 24px;
}

.organizer-card {
  display: flex;
  align-items: center;
  gap: 16px;

  background: #ffffff;

  border: 1px solid #e5e7eb;
  border-radius: 10px;

  padding: 18px;

  transition: all 0.2s ease;

  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.organizer-card:hover {
  transform: translateY(-2px);

  border-color: #22b8aa;

  box-shadow: 0 6px 16px rgba(0,0,0,0.06);
}

.organizer-icon {
  width: 48px;
  height: 48px;

  background: #dff3f1;
  color: #0b7c74;

  border-radius: 10px;

  display: flex;
  align-items: center;
  justify-content: center;

  font-size: 20px;

  flex-shrink: 0;
}

.organizer-card h3 {
  margin: 0 0 4px 0;

  font-size: 17px;
  color: #111827;
}

.organizer-card p {
  margin: 0;

  font-size: 14px;
  color: #6b7280;
}

.contact-intro {
  margin-bottom: 22px;
  color: #555;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));

  gap: 18px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 16px;

  background: white;

  border: 1px solid #e5e7eb;
  border-radius: 10px;

  padding: 18px;

  transition: all 0.2s ease;

  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.contact-card:hover {
  transform: translateY(-2px);

  border-color: #22b8aa;

  box-shadow: 0 6px 16px rgba(0,0,0,0.06);
}

.contact-icon {
  width: 48px;
  height: 48px;

  background: #dff3f1;
  color: #0b7c74;

  border-radius: 10px;

  display: flex;
  align-items: center;
  justify-content: center;

  font-size: 20px;

  flex-shrink: 0;
}

.contact-card h3 {
  margin: 0 0 5px 0;

  font-size: 17px;
  color: #111827;
}

.contact-card a {
  color: #0b7c74;

  text-decoration: none;
  font-weight: 600;

  font-size: 14px;
}

.contact-card a:hover {
  color: #22b8aa;
}
table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;

  margin: 16px 0 24px;

  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  overflow: hidden;

  font-size: 12.5px;

  box-shadow: 0 3px 10px rgba(0,0,0,0.035);
}

th {
  background: #f8fafc;
  color: #374151;

  padding: 7px 10px;

  text-align: left;
  font-weight: 700;

  border-bottom: 1px solid #e5e7eb;
  border-right: 1px solid #e5e7eb;

  white-space: nowrap;
  line-height: 1.2;
}

td {
  padding: 6px 10px;

  color: #374151;
  background: #ffffff;

  border-bottom: 1px solid #edf0f3;
  border-right: 1px solid #edf0f3;

  white-space: nowrap;
  line-height: 1.2;
}

th:last-child,
td:last-child {
  border-right: none;
}

tr:last-child td {
  border-bottom: none;
}

tbody tr:nth-child(even) td {
  background: #fbfcfd;
}

tbody tr:hover td {
  background: #f0fbfa;
}

    th, td {
      border: 1px solid #ccc;
      padding: 9px;
      text-align: left;
    }

    th {
      background: #4b4b4b;
      color: white;
    }

    code, pre {
      background: #f1f1f1;
      padding: 10px;
      display: block;
      overflow-x: auto;
      border-radius: 4px;
      font-size: 14px;
    }

    footer {
      background: #4b4b4b;
      color: white;
      text-align: center;
      padding: 20px;
      margin-top: 30px;
    }

    .button {
      display: inline-block;
      background: #22b8aa;
      color: white;
      padding: 10px 18px;
      text-decoration: none;
      border-radius: 4px;
      margin-top: 10px;
      font-weight: bold;
    }

    .button:hover {
      background: #1a9489;
    }

    a {
      color: #1f5f99;
      text-decoration: none;
      font-weight: bold;
    }

    a:hover {
      color: #22b8aa;
    }

    ul li {
      margin-bottom: 8px;
    }

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

      nav a {
        display: inline-block;
        margin: 6px 8px;
      }

      .conference-link {
        margin-right: 0;
      }
    }

/* Active navbar link */
nav a.active {
  color: #22b8aa;
  border-bottom: 2px solid #22b8aa;
  padding-bottom: 4px;
}