.topic-page-hero {
        padding: clamp(92px, 11vw, 132px) 0 clamp(46px, 7vw, 76px);
        background: linear-gradient(180deg, #ffffff 0%, #f4efff 100%);
        border-bottom: 1px solid rgba(0, 86, 255, 0.14);
      }
      .topic-page-hero h1 {
        max-width: 930px;
        margin: 0 0 18px;
        color: #111111;
        font-family: var(--font-display);
        font-size: clamp(36px, 5vw, 64px);
        line-height: 1.05;
        font-weight: 900;
      }
      .topic-page-hero p {
        max-width: 800px;
        margin: 0;
        color: #333333;
        font-size: clamp(16px, 1.6vw, 19px);
        line-height: 1.72;
      }
      .topic-pill {
        display: inline-flex;
        margin-bottom: 14px;
        padding: 9px 13px;
        border-radius: 999px;
        background: #0056ff;
        color: #fff;
        font-size: 12px;
        font-weight: 900;
        letter-spacing: 0.12em;
        text-transform: uppercase;
      }
      .topic-page-section {
        padding: clamp(58px, 8vw, 92px) 0;
        background: #f5f8ff;
      }
      .topic-page-head {
        display: flex;
        align-items: end;
        justify-content: space-between;
        gap: 24px;
        margin-bottom: 28px;
      }
      .topic-page-head h2 {
        margin: 0;
        color: #111111;
        font-family: var(--font-display);
        font-size: clamp(26px, 3.5vw, 42px);
        line-height: 1.12;
      }
      .topic-back-link {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 42px;
        padding: 11px 16px;
        border-radius: 999px;
        background: #0056ff;
        color: #fff;
        font-size: 13px;
        font-weight: 800;
        text-decoration: none;
        white-space: nowrap;
      }
      .topic-grid {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 18px;
      }
      .topic-card {
        border: 1px solid rgba(8, 42, 114, 0.12);
        border-radius: 22px;
        background: #fff;
        overflow: hidden;
        box-shadow: 0 18px 34px rgba(9, 33, 89, 0.1);
      }
      .topic-card-thumb {
        display: block;
        aspect-ratio: 16 / 9;
        overflow: hidden;
        background: #e7efff;
      }
      .topic-card-thumb img {
        width: 100%;
        height: 100%;
        object-fit: cover;
      }
      .topic-card-body {
        padding: 20px;
      }
      .topic-card-tag {
        display: inline-flex;
        margin-bottom: 10px;
        padding: 7px 10px;
        border-radius: 999px;
        background: rgba(0, 86, 255, 0.1);
        color: #0056ff;
        font-size: 11px;
        font-weight: 900;
        letter-spacing: 0.06em;
        text-transform: uppercase;
      }
      .topic-card-body small {
        display: block;
        margin-bottom: 10px;
        color: #333333;
        font-size: 12px;
      }
      .topic-card-body h3 {
        margin: 0 0 10px;
        color: #0056ff;
        font-family: var(--font-display);
        font-size: 20px;
        line-height: 1.24;
      }
      .topic-card-body p {
        margin: 0 0 16px;
        color: #333333;
        font-size: 14px;
        line-height: 1.62;
      }
      .topic-card-link {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 40px;
        padding: 10px 15px;
        border-radius: 999px;
        background: linear-gradient(135deg, #0056ff 0%, #00aeef 100%);
        color: #fff;
        font-size: 13px;
        font-weight: 800;
        text-decoration: none;
        box-shadow: 0 12px 24px rgba(0, 86, 255, 0.2);
      }
      .topic-pagination {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
        margin-top: 30px;
      }
      .topic-page-link {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-width: 42px;
        height: 42px;
        padding: 0 14px;
        border: 1px solid rgba(16, 36, 85, 0.16);
        border-radius: 999px;
        background: #fff;
        color: #111111;
        font-size: 13px;
        font-weight: 900;
        cursor: pointer;
        box-shadow: 0 12px 24px rgba(9, 33, 89, 0.08);
      }
      .topic-page-link.is-active {
        border-color: transparent;
        background: #0056ff;
        color: #fff;
      }
      @media (max-width: 980px) {
        .topic-page-head {
          display: block;
        }
        .topic-back-link {
          margin-top: 14px;
        }
        .topic-grid {
          grid-template-columns: 1fr;
        }
      }