.section-title {
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 16px;
    line-height: 1.4;
  }

  .section-title span { color: var(--red); }


  /* ── 회사소개 ── */
  .about-section {
    max-width: 1300px;
    margin: 0 auto;
    padding: 90px 5%;
    text-align: center;
  }

  .about-section h2 {
    padding-bottom: 3%;
  }

  .about-text {
    text-align: center;
    margin-bottom: 20px;
  }

  .about-text .intro {
    font-size: 18px;
    line-height: 2;
    margin-bottom: 20px;
  }

  .about-text .sub{
    font-size: 14px;
    color: var(--silver);
  }
  .about-img {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .divider {
    margin: 0 auto;  
    width: 1px;
    height: 100px; 
    background: var(--silver);
  }

  .about-img img{
    height: 70px;
    width: auto;
  }

  /* ── 사업분야 ── */
  .business-section {
    background: var(--white);
    padding: 90px 5%;
  }
  .business-inner {
    max-width: 1100px;
    margin: 0 auto;
  }
  .business-header {
    text-align: center;
    margin-bottom: 70px;
  }
  .business-header .section-divider {
    margin: 0 auto;
  }

  /* 허브 다이어그램 */
  .hub-wrap {
    position: relative;
    width: 100%;
    max-width: 680px;
    margin: 0 auto;
    aspect-ratio: 1;
  }

  /* SVG 연결선 레이어 */
  .hub-wrap svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
  }

  /* 중앙 원 */
  .hub-center {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 130px; height: 130px;
    border-radius: 50%;
    background: var(--navy);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10;
    box-shadow: 0 0 0 14px rgba(44,59,82,0.09), 0 8px 32px rgba(44,59,82,0.3);
  }
  .hub-center-icon { font-size: 30px; margin-bottom: 6px; }
  .hub-center-text {
    font-size: 12px;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 1px;
    text-align: center;
    line-height: 1.4;
  }

  /* 가지 카드 */
  .branch-card {
    position: absolute;
    width: 128px;
    background: var(--white);
    border-radius: 14px;
    padding: 18px 12px;
    text-align: center;
    box-shadow: 0 4px 24px rgba(44,59,82,0.10);
    border: 1.5px solid rgba(44,59,82,0.07);
    transform: translate(-50%, -50%);
    transition: transform 0.25s, box-shadow 0.25s;
    cursor: default;
    z-index: 10;
    opacity: 0;
    animation: fadeUp 0.6s ease forwards;
  }

  .branch-card:hover {
    transform: translate(-50%, -50%) scale(1.08);
    box-shadow: 0 10px 36px rgba(44,59,82,0.18);
  }

  .branch-card.b2:hover {
    transform: translate(-50%, -50%) scale(1.08);
    box-shadow: 0 10px 36px rgba(169,46,43,0.3);
  }

  .branch-icon { font-size: 26px; margin-bottom: 8px; }
  .branch-title { font-size: 13px; font-weight: 700; color: var(--navy); margin-bottom: 4px; }


  /* 위치 (700x700 기준 퍼센트) */
  .b1 { top: 25%; left: 25%; } /* 위 왼쪽  */
  .b2 { 
      top: 14%; 
      left: 50%; 
      border: 1.5px solid var(--red); 
      box-shadow: 0 4px 24px rgba(169,46,43,0.2);
    } /* 위 중앙  */
  .b3 { top: 25%; left: 75%; } /* 위 오른쪽*/
  .b4 { top: 50%; left: 14%; } /* 왼쪽     */
  .b5 { top: 50%; left: 86%; } /* 오른쪽   */
  .b6 { top: 75%; left: 25%; } /* 아래 왼쪽*/
  .b7 { top: 75%; left: 75%; } /* 아래 오른쪽*/

  .b1 .branch-icon { color: #4a8fd4; }
  .b2 .branch-icon { color: #e8a835; }
  .b3 .branch-icon { color: #5dbb8a; }
  .b4 .branch-icon { color: #e86c5d; }
  .b5 .branch-icon { color: #9b7de0; }
  .b6 .branch-icon { color: #45c4b0; }
  .b7 .branch-icon { color: #45c4b0; }

  @keyframes fadeUp {
    from { opacity: 0; transform: translate(-50%, calc(-50% + 16px)); }
    to   { opacity: 1; transform: translate(-50%, -50%); }
  }

  @keyframes pulse {
    0%, 100% { opacity: 0.4; r: 68; }
    50%       { opacity: 0.1; r: 78; }
  }
  .pulse { animation: pulse 2.4s ease-in-out infinite; }

  /* ── 반응형 ── */
  @media (max-width: 768px) {
    .hub-wrap { max-width: 320px; }
    .branch-card { width: 72px; padding: 3px 1px; }
    .branch-title { font-size: 10px; }
    .hub-center { width: 80px; height: 80px; }
    .hub-center-icon { font-size: 20px; }
    .hub-center-text { font-size: 10px; }
  }