.chubont-oem-plus {
      font-family: Arial, sans-serif;
      color: #111827;
      background: #ffffff;
      padding: 64px 16px;
    }

    .chubont-oem-plus * {
      box-sizing: border-box;
    }

    .chubont-oem-container {
      max-width: 1180px;
      margin: 0 auto;
    }

    .chubont-oem-kicker {
      margin: 0 0 10px;
      color: #8a6a2f;
      font-size: 14px;
      line-height: 1.4;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      text-align: center;
    }

    .chubont-oem-title {
      margin: 0 auto 18px;
      max-width: 820px;
      color: #0f2b46;
      font-size: 34px;
      line-height: 1.22;
      font-weight: 700;
      text-align: center;
    }

    .chubont-oem-lead {
      margin: 0 auto 36px;
      max-width: 900px;
      color: #4b5563;
      font-size: 16px;
      line-height: 1.75;
      text-align: center;
    }

    .chubont-oem-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin: 0 0 42px;
    }

    .chubont-oem-card {
      background: #f6f7f9;
      border: 1px solid #e5e7eb;
      padding: 22px 20px;
      min-height: 210px;
    }

    .chubont-oem-card-number {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 32px;
      height: 32px;
      margin-bottom: 14px;
      border-radius: 50%;
      background: #0f2b46;
      color: #ffffff;
      font-size: 14px;
      font-weight: 700;
    }

    .chubont-oem-card h3 {
      margin: 0 0 10px;
      color: #111827;
      font-size: 19px;
      line-height: 1.35;
      font-weight: 700;
    }

    .chubont-oem-card p {
      margin: 0;
      color: #4b5563;
      font-size: 14px;
      line-height: 1.7;
    }

    .chubont-oem-band {
      background: #0f2b46;
      color: #ffffff;
      padding: 34px;
      margin: 0 0 42px;
    }

    .chubont-oem-band h2 {
      margin: 0 0 14px;
      color: #ffffff;
      font-size: 26px;
      line-height: 1.3;
      font-weight: 700;
    }

    .chubont-oem-band p {
      margin: 0;
      max-width: 920px;
      color: #e5e7eb;
      font-size: 15px;
      line-height: 1.75;
    }

    .chubont-oem-two-col {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 22px;
      margin: 0 0 42px;
    }

    .chubont-oem-panel {
      border: 1px solid #e5e7eb;
      padding: 26px 24px;
      background: #ffffff;
    }

    .chubont-oem-panel h2 {
      margin: 0 0 16px;
      color: #0f2b46;
      font-size: 24px;
      line-height: 1.3;
      font-weight: 700;
    }

    .chubont-oem-list {
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .chubont-oem-list li {
      position: relative;
      margin: 0 0 12px;
      padding-left: 20px;
      color: #374151;
      font-size: 15px;
      line-height: 1.65;
    }

    .chubont-oem-list li:before {
      content: "";
      position: absolute;
      left: 0;
      top: 10px;
      width: 7px;
      height: 7px;
      background: #b88935;
      border-radius: 50%;
    }

    .chubont-oem-process {
      margin: 0 0 42px;
    }

    .chubont-oem-section-title {
      margin: 0 0 18px;
      color: #0f2b46;
      font-size: 26px;
      line-height: 1.3;
      font-weight: 700;
      text-align: center;
    }

    .chubont-oem-steps {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 12px;
    }

    .chubont-oem-step {
      background: #f6f7f9;
      border: 1px solid #e5e7eb;
      padding: 18px 14px;
      min-height: 130px;
    }

    .chubont-oem-step strong {
      display: block;
      margin-bottom: 8px;
      color: #0f2b46;
      font-size: 15px;
      line-height: 1.35;
    }

    .chubont-oem-step span {
      display: block;
      color: #4b5563;
      font-size: 13px;
      line-height: 1.6;
    }

    .chubont-oem-table-wrap {
      overflow-x: auto;
      margin: 0 0 42px;
    }

    .chubont-oem-table {
      width: 100%;
      min-width: 760px;
      border-collapse: collapse;
      border: 1px solid #e5e7eb;
      background: #ffffff;
    }

    .chubont-oem-table th,
    .chubont-oem-table td {
      padding: 15px 16px;
      border: 1px solid #e5e7eb;
      text-align: left;
      vertical-align: top;
      font-size: 14px;
      line-height: 1.6;
    }

    .chubont-oem-table th {
      background: #f1f4f7;
      color: #0f2b46;
      font-weight: 700;
    }

    .chubont-oem-table td {
      color: #374151;
    }

    .chubont-oem-faq {
      margin: 0;
      padding-top: 4px;
    }

    .chubont-oem-faq-list {
      max-width: 980px;
      margin: 0 auto;
    }

    .chubont-oem-faq-item {
      margin-bottom: 8px;
      background: #f3f3f3;
      border: 1px solid #eeeeee;
    }

    .chubont-oem-faq-question {
      width: 100%;
      min-height: 58px;
      padding: 18px 54px 18px 20px;
      border: 0;
      background: transparent;
      color: #0f2b46;
      font-size: 15px;
      line-height: 1.45;
      font-weight: 700;
      text-align: left;
      cursor: pointer;
      position: relative;
      font-family: Arial, sans-serif;
    }

    .chubont-oem-faq-question:after {
      content: "";
      position: absolute;
      right: 22px;
      top: 50%;
      width: 8px;
      height: 8px;
      border-right: 1.5px solid #0f2b46;
      border-bottom: 1.5px solid #0f2b46;
      transform: translateY(-60%) rotate(45deg);
      transition: transform 0.2s ease;
    }

    .chubont-oem-faq-item.is-active .chubont-oem-faq-question {
      color: #4aa3ff;
    }

    .chubont-oem-faq-item.is-active .chubont-oem-faq-question:after {
      transform: translateY(-35%) rotate(225deg);
      border-color: #4aa3ff;
    }

    .chubont-oem-faq-answer {
      display: none;
      padding: 0 20px 22px;
      color: #4b5563;
      font-size: 14px;
      line-height: 1.8;
    }

    .chubont-oem-faq-answer p {
      margin: 0;
    }

    .chubont-oem-faq-item.is-active .chubont-oem-faq-answer {
      display: block;
    }

    @media (max-width: 992px) {
      .chubont-oem-grid,
      .chubont-oem-steps {
        grid-template-columns: repeat(2, 1fr);
      }

      .chubont-oem-two-col {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 640px) {
      .chubont-oem-plus {
        padding: 44px 14px;
      }

      .chubont-oem-title {
        font-size: 28px;
      }

      .chubont-oem-grid,
      .chubont-oem-steps {
        grid-template-columns: 1fr;
      }

      .chubont-oem-band,
      .chubont-oem-panel {
        padding: 24px 18px;
      }

      .chubont-oem-faq-question {
        padding: 16px 46px 16px 16px;
        font-size: 14px;
      }

      .chubont-oem-faq-answer {
        padding: 0 16px 20px;
      }
    }