.activity-detail-page {
      --ad-bg: #eef4ff;
      --ad-surface: #ffffff;
      --ad-soft: #f1f6ff;
      --ad-border: #c7d8ef;
      --ad-text: #10345f;
      --ad-muted: #4e6887;
      --ad-primary: #2f61cc;
      --ad-primary-dark: #1f4ea8;
      --ad-shadow: 0 16px 34px rgba(24, 72, 134, 0.12);
      --ad-hero-fixed-height: 420px;
      color: var(--ad-text);
      position: relative;
      isolation: isolate;
      max-width: 1360px;
    }

    .activity-detail-page .ad-card {
      border: 1px solid var(--ad-border);
      border-radius: 24px;
      background: var(--ad-surface);
      box-shadow: var(--ad-shadow);
      overflow: hidden;
    }

    .activity-detail-page .ad-hero {
      border-radius: 26px;
      border-color: #bfd4ee;
      background:
        radial-gradient(circle at 92% 10%, rgba(255, 193, 101, 0.2), transparent 35%),
        radial-gradient(circle at 6% 90%, rgba(79, 135, 220, 0.14), transparent 33%),
        linear-gradient(170deg, #ffffff 0%, #f5faff 100%);
    }

    .activity-detail-page .ad-hero .row {
      align-items: stretch;
      min-height: var(--ad-hero-fixed-height);
    }

    .activity-detail-page .ad-hero .col-lg-6 {
      min-height: var(--ad-hero-fixed-height);
    }

    .activity-detail-page .ad-cover {
      width: 100%;
      height: var(--ad-hero-fixed-height);
      min-height: var(--ad-hero-fixed-height);
      object-fit: cover;
      display: block;
      background: #dbe8fb;
      filter: saturate(1.04) contrast(1.02);
    }

    .activity-detail-page .ad-cover-placeholder {
      height: var(--ad-hero-fixed-height);
      min-height: var(--ad-hero-fixed-height);
      display: flex;
      align-items: center;
      justify-content: center;
      background:
        radial-gradient(circle at 15% 10%, rgba(255, 192, 95, 0.28), transparent 35%),
        linear-gradient(140deg, #eaf2ff, #d9e8ff);
      color: #3763a5;
      font-size: 3.4rem;
    }

    .activity-detail-page .ad-hero-body {
      height: var(--ad-hero-fixed-height);
      min-height: var(--ad-hero-fixed-height);
      padding: 1.45rem 1.45rem 1.7rem;
      display: flex;
      flex-direction: column;
      gap: 0.95rem;
      justify-content: center;
    }

    .activity-detail-page .ad-back {
      align-self: flex-start;
      font-size: 1rem;
      font-weight: 700;
      border-radius: 14px;
      border: 1px solid #d69a3d;
      color: #5a3a0a;
      background: linear-gradient(135deg, #ffe3b0, #ffc66d);
      box-shadow: 0 8px 16px rgba(214, 154, 61, 0.28);
      padding: 0.6rem 1rem;
    }

    .activity-detail-page .ad-back:hover {
      border-color: #c88728;
      color: #4a2e08;
      background: linear-gradient(135deg, #ffd792, #ffb957);
    }

    .activity-detail-page .ad-back:focus {
      border-color: #c88728;
      color: #4a2e08;
      background: linear-gradient(135deg, #ffd792, #ffb957);
      box-shadow: 0 0 0 0.2rem rgba(255, 194, 100, 0.35);
    }

    .activity-detail-page .ad-kicker {
      margin: 0;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: #2f5fb2;
      font-size: 0.79rem;
      width: fit-content;
      padding: 0.3rem 0.55rem;
      border-radius: 999px;
      background: #e8f1ff;
      border: 1px solid #c8daf4;
    }

    .activity-detail-page .ad-title {
      margin: 0;
      line-height: 1.22;
      font-size: clamp(1.8rem, 2.5vw, 2.45rem);
      font-weight: 800;
      color: var(--ad-text);
      overflow-wrap: anywhere;
    }

    .activity-detail-page .ad-meta-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 0.7rem;
    }

    .activity-detail-page .ad-meta-item {
      border: 1px solid var(--ad-border);
      border-radius: 16px;
      background: var(--ad-soft);
      padding: 0.72rem 0.8rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
      min-height: 72px;
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.65);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .activity-detail-page .ad-meta-item:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 18px rgba(35, 82, 143, 0.12);
    }

    .activity-detail-page .ad-meta-item:nth-child(1) { background: linear-gradient(145deg, #edf5ff, #e7f1ff); }
    .activity-detail-page .ad-meta-item:nth-child(2) { background: linear-gradient(145deg, #eef9ff, #e8f5ff); }
    .activity-detail-page .ad-meta-item:nth-child(3) { background: linear-gradient(145deg, #fff4e7, #ffefdd); }

    .activity-detail-page .ad-meta-icon {
      font-size: 1.16rem;
      line-height: 1;
      width: 28px;
      height: 28px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.85);
      border: 1px solid #c9daf1;
      flex-shrink: 0;
    }

    .activity-detail-page .ad-meta-label {
      display: block;
      font-size: 0.8rem;
      color: var(--ad-muted);
      line-height: 1.2;
    }

    .activity-detail-page .ad-meta-value {
      display: block;
      font-size: 1.06rem;
      font-weight: 700;
      color: #143e74;
      line-height: 1.25;
      word-break: break-word;
      overflow-wrap: anywhere;
    }

    .activity-detail-page .ad-actions {
      display: grid;
      grid-template-columns: 1fr;
      gap: 0.65rem;
      margin-top: 0.25rem;
    }

    .activity-detail-page .ad-btn {
      border: 1px solid transparent;
      border-radius: 14px;
      padding: 0.66rem 0.95rem;
      font-size: 0.98rem;
      font-weight: 700;
      text-decoration: none;
      color: #ffffff;
      line-height: 1.2;
      text-align: center;
      box-shadow: 0 10px 18px rgba(32, 74, 133, 0.2);
      transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
    }

    .activity-detail-page .ad-btn:focus,
    .activity-detail-page .ad-btn:hover {
      color: #ffffff;
      text-decoration: none;
      filter: brightness(0.95);
      transform: translateY(-1px);
      box-shadow: 0 14px 24px rgba(32, 74, 133, 0.28);
    }

    .activity-detail-page .ad-btn-detail {
      background: linear-gradient(135deg, #2f66d1, #1d4fab);
      border-color: #1f4e99;
    }
.activity-detail-page .ad-section-description {
      border-top: 5px solid #2a62ca;
      background: linear-gradient(180deg, #ffffff, #f9fcff);
    }

    .activity-detail-page .ad-section-gallery {
      border-top: 5px solid #0f8d66;
      background: linear-gradient(180deg, #ffffff, #f8fffb);
    }

    .activity-detail-page .ad-section {
      padding: 1.45rem 1.3rem;
    }

    .activity-detail-page .ad-section-title {
      margin: 0 0 0.95rem;
      font-size: clamp(1.35rem, 2vw, 1.75rem);
      font-weight: 800;
      color: #0f3b74;
      letter-spacing: 0.01em;
    }

    .activity-detail-page .ad-section-collapsible {
      padding: 0;
    }

    .activity-detail-page .ad-section-static-header {
      display: flex;
      align-items: center;
      padding: 1.2rem 1.3rem 0.55rem;
    }

    .activity-detail-page .ad-section-static-header .ad-section-title {
      margin: 0;
    }

    .activity-detail-page .ad-section-toggle {
      width: 100%;
      border: 0;
      background: transparent;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 0.75rem;
      padding: 1.2rem 1.3rem;
      text-align: left;
      color: inherit;
      cursor: pointer;
      transition: background-color 0.2s ease;
    }

    .activity-detail-page .ad-section-toggle:hover {
      background: rgba(47, 97, 204, 0.06);
    }

    .activity-detail-page .ad-section-toggle:focus-visible {
      outline: none;
      box-shadow: inset 0 0 0 2px rgba(47, 97, 204, 0.24);
    }

    .activity-detail-page .ad-section-toggle .ad-section-title {
      margin: 0;
    }

    .activity-detail-page .ad-toggle-icon {
      width: 30px;
      height: 30px;
      border-radius: 999px;
      border: 1px solid #b8ceea;
      background: #f0f6ff;
      color: #2a5eb5;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 0.95rem;
      line-height: 1;
      transition: transform 0.2s ease, background-color 0.2s ease;
      flex-shrink: 0;
    }

    .activity-detail-page .ad-toggle-icon::before {
      content: "\25BC";
    }

    .activity-detail-page .ad-section-toggle[aria-expanded="true"] .ad-toggle-icon {
      transform: rotate(180deg);
      background: #e6f0ff;
    }

    .activity-detail-page .ad-section-body {
      padding: 0 1.3rem 1.3rem;
    }

    .activity-detail-page .ad-description {
      color: #184676;
      font-size: 1.08rem;
      line-height: 1.95;
      white-space: pre-line;
      margin: 0;
      overflow-wrap: anywhere;
    }

    .activity-detail-page .ad-detail-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 0.85rem;
      align-items: stretch;
    }

    .activity-detail-page .ad-detail-item {
      border: 1px solid #c7d8ef;
      border-radius: 14px;
      background: #f7fbff;
      padding: 0.9rem 1rem;
      min-height: 0;
      display: grid;
      grid-template-columns: minmax(140px, 220px) minmax(0, 1fr);
      gap: 0.9rem;
      align-items: start;
    }

    .activity-detail-page .ad-detail-label {
      display: inline-flex;
      align-items: center;
      width: fit-content;
      max-width: 100%;
      color: #ffffff;
      font-size: 0.95rem;
      font-weight: 800;
      margin-bottom: 0;
      padding: 0.38rem 0.88rem;
      border-radius: 999px;
      border: 1px solid #1f4e99;
      background: linear-gradient(135deg, #2f66d1, #1d4fab);
      box-shadow: 0 8px 14px rgba(31, 78, 153, 0.24);
      letter-spacing: 0.01em;
      line-height: 1.2;
    }

    .activity-detail-page .ad-detail-label::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #ffd97c;
      box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.35);
      margin-right: 0.45rem;
      flex-shrink: 0;
    }

    .activity-detail-page .ad-detail-value {
      color: #184676;
      font-size: 1rem;
      line-height: 1.35;
      white-space: pre-line;
      overflow-wrap: anywhere;
    }

    .activity-detail-page .ad-gallery-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 0.8rem;
      margin-bottom: 0.95rem;
      flex-wrap: wrap;
    }

    .activity-detail-page .ad-count {
      display: inline-flex;
      align-items: center;
      padding: 0.4rem 0.9rem;
      border-radius: 999px;
      background: #eef6ff;
      border: 1px solid #cadcf4;
      color: #20518f;
      font-size: 0.95rem;
      font-weight: 700;
    }

    .activity-detail-page .ad-empty {
      border: 1px dashed #bdd2ef;
      border-radius: 14px;
      background: #f7fbff;
      color: #3e5f86;
      font-size: 1.02rem;
      padding: 1rem;
      margin: 0;
    }

    .activity-detail-page .ad-thumb {
      width: 100%;
      height: 240px;
      object-fit: cover;
      border-radius: 16px;
      border: 1px solid #c8d9ee;
      box-shadow: 0 10px 20px rgba(16, 54, 110, 0.12);
      display: block;
      transition: transform 0.22s ease, box-shadow 0.22s ease;
    }

    .activity-detail-page .ad-thumb:hover {
      transform: translateY(-3px) scale(1.01);
      box-shadow: 0 16px 26px rgba(16, 54, 110, 0.18);
    }

    .activity-detail-page .ad-footer-actions {
      display: flex;
      justify-content: center;
      margin-top: 1rem;
    }

    .activity-detail-page .ad-footer-actions .btn {
      border-radius: 14px;
      font-weight: 700;
      font-size: 1rem;
      padding: 0.7rem 1.2rem;
      min-width: 220px;
    }

    @media (max-width: 1199px) {
      .activity-detail-page {
        --ad-hero-fixed-height: 380px;
      }

      .activity-detail-page .ad-title {
        font-size: clamp(1.55rem, 2.6vw, 2.1rem);
      }

      .activity-detail-page .ad-meta-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 991px) {
      .activity-detail-page {
        --ad-hero-fixed-height: auto;
      }

      .activity-detail-page .ad-hero .row,
      .activity-detail-page .ad-hero .col-lg-6 {
        min-height: 0;
      }

      .activity-detail-page .ad-cover,
      .activity-detail-page .ad-cover-placeholder {
        height: 260px;
        min-height: 260px;
      }

      .activity-detail-page .ad-hero-body {
        height: auto;
        min-height: 0;
        padding: 1.05rem 1rem 1.25rem;
      }

      .activity-detail-page .ad-meta-grid {
        grid-template-columns: 1fr;
      }

      .activity-detail-page .ad-actions {
        grid-template-columns: 1fr;
      }

      .activity-detail-page .ad-actions .ad-btn {
        width: 100%;
        text-align: center;
      }

      .activity-detail-page .ad-section {
        padding: 1.15rem 1rem;
      }

      .activity-detail-page .ad-section-collapsible {
        padding: 0;
      }

      .activity-detail-page .ad-section-toggle {
        padding: 1.05rem 1rem;
      }

      .activity-detail-page .ad-section-static-header {
        padding: 1.05rem 1rem 0.5rem;
      }

      .activity-detail-page .ad-section-body {
        padding: 0 1rem 1rem;
      }

      .activity-detail-page .ad-detail-grid {
        grid-template-columns: 1fr;
      }

      .activity-detail-page .ad-thumb {
        height: 200px;
      }
    }

    @media (max-width: 767px) {
      .activity-detail-page {
        padding-top: 0.85rem !important;
        padding-bottom: 1rem !important;
      }

      .activity-detail-page .ad-card {
        border-radius: 18px;
      }

      .activity-detail-page .ad-cover,
      .activity-detail-page .ad-cover-placeholder {
        height: 220px;
        min-height: 220px;
      }

      .activity-detail-page .ad-hero-body {
        padding: 0.9rem 0.85rem 1rem;
        gap: 0.75rem;
      }

      .activity-detail-page .ad-title {
        font-size: 1.58rem;
      }

      .activity-detail-page .ad-back {
        width: 100%;
        text-align: center;
      }

      .activity-detail-page .ad-meta-item {
        min-height: 64px;
        padding: 0.62rem 0.72rem;
      }

      .activity-detail-page .ad-meta-value {
        font-size: 1rem;
      }

      .activity-detail-page .ad-section {
        padding: 1rem 0.85rem;
      }

      .activity-detail-page .ad-section-title {
        font-size: 1.38rem;
      }

      .activity-detail-page .ad-section-collapsible {
        padding: 0;
      }

      .activity-detail-page .ad-section-toggle {
        padding: 0.95rem 0.85rem;
      }

      .activity-detail-page .ad-section-static-header {
        padding: 0.95rem 0.85rem 0.45rem;
      }

      .activity-detail-page .ad-section-body {
        padding: 0 0.85rem 0.9rem;
      }

    .activity-detail-page .ad-detail-item {
        grid-template-columns: 1fr;
        gap: 0.4rem;
      }

      .activity-detail-page .ad-description {
        font-size: 1rem;
        line-height: 1.75;
      }

      .activity-detail-page .ad-thumb {
        height: 180px;
      }
    }