.case-demo-kicker {
      margin-bottom: 8px;
      color: var(--green);
      font-family: var(--font-tech);
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 0.06em;
      text-transform: uppercase;
    }

.case-demo-subtitle {
      max-width: 760px;
      margin: 0;
      color: var(--text-secondary);
      font-size: 14px;
      line-height: 1.8;
    }

.case2-problem-solution {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.case2-info-card {
  min-width: 0;
  padding: 24px 24px 26px;
  border-radius: 18px;
}

.case2-info-label {
  display: inline-flex;
  min-height: 24px;
  padding: 0 10px;
  align-items: center;
  border-radius: 999px;
  font-family: var(--font-tech);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.case2-info-card h3 {
  margin: 14px 0 16px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
}

.case2-info-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  opacity: 1;
}

.case2-info-card p + p {
  margin-top: 12px;
}

.case2-problem {
  border: 1px solid #efc8c5;
  background:
    linear-gradient(
      145deg,
      rgba(255, 246, 245, .98),
      rgba(255, 250, 249, .98)
    );
}

.case2-problem .case2-info-label {
  background: #f7d9d7;
  color: #a5423e;
}

.case2-problem h3 {
  color: #a33e3a;
}

.case2-problem p {
  color: #704f4c;
}

.case2-solution {
  border: 1px solid #c9ded0;
  background:
    linear-gradient(
      145deg,
      rgba(243, 250, 245, .98),
      rgba(249, 252, 250, .98)
    );
}

.case2-solution .case2-info-label {
  background: #dcecdf;
  color: #356347;
}

.case2-solution h3 {
  color: #315c42;
}

.case2-solution p {
  color: #4d6556;
}

.demo-panel-head {
      padding: 16px 18px;
      border-bottom: 1px solid #e7e0d8;
      background: rgba(247, 244, 239, .9);
    }

.demo-panel-title {
      color: #3f3b37;
      font-size: 14px;
      font-weight: 700;
    }

.demo-panel-note {
      margin-top: 3px;
      color: var(--text-muted);
      font-family: var(--font-tech);
      font-size: 9px;
    }

.demo-cta {
      display: flex;
      justify-content: center;
      margin-top: 18px;
    }

.demo-cta a {
      display: inline-flex;
      min-height: 48px;
      padding: 0 22px;
      align-items: center;
      justify-content: center;
      border-radius: 12px;
      background: var(--blue);
      color: #fff;
      text-decoration: none;
      font-size: 13px;
      font-weight: 700;
      box-shadow: 0 10px 24px rgba(47, 111, 159, .18);
      transition: background .2s ease, transform .2s ease;
    }

.demo-cta a:hover {
      background: var(--blue-hover);
      transform: translateY(-1px);
    }

.pdf-case {
      margin-top: 26px;
      padding: 42px;
      border: 1px solid var(--border);
      border-radius: var(--radius-card);
      background: rgba(255, 255, 255, 0.97);
      box-shadow: var(--shadow-card);
    }

    .pdf-case h2 {
      margin: 0 0 10px;
      color: var(--green);
      font-size: clamp(1.8rem, 3.5vw, 2.5rem);
      font-weight: 600;
      line-height: 1.15;
      letter-spacing: -0.035em;
    }

    .pdf-case-grid {
      display: grid;
      grid-template-columns: 0.9fr 0.78fr 1.32fr;
      gap: 16px;
      margin-top: 28px;
    }

    .drive-panel,
    .pipeline-panel,
    .sheet-panel {
      min-width: 0;
      overflow: hidden;
      border: 1px solid #e7e0d8;
      border-radius: 18px;
      background: #fcfbf9;
    }

    .drive-toolbar {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 12px 14px;
      border-bottom: 1px solid #e7e0d8;
      background: #f7f4ef;
      color: #5e5953;
      font-size: 12px;
      font-weight: 700;
    }

    .drive-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #d8d0c7;
    }

    .drive-body {
      min-height: 370px;
      padding: 14px;
    }

    .drive-folder {
      margin-bottom: 12px;
      overflow: hidden;
      border: 1px solid #e5ddd4;
      border-radius: 13px;
      background: #fff;
    }

    .drive-folder-title {
      padding: 11px 12px;
      border-bottom: 1px solid #eee7df;
      background: #fbfaf7;
      color: #46413d;
      font-family: var(--font-tech);
      font-size: 10px;
      font-weight: 600;
    }

    .drive-files {
      min-height: 54px;
      padding: 8px;
    }

    .drive-empty {
      padding: 10px;
      color: #a09a93;
      font-family: var(--font-tech);
      font-size: 9px;
      text-align: center;
    }

    .drive-file {
      display: grid;
      grid-template-columns: 28px 1fr;
      gap: 8px;
      align-items: center;
      margin-bottom: 6px;
      padding: 8px;
      border: 1px solid transparent;
      border-radius: 9px;
      color: #56514c;
      font-family: var(--font-tech);
      font-size: 9px;
      line-height: 1.35;
      transition: opacity .2s ease, transform .25s ease, background .2s ease, border-color .2s ease;
    }

    .drive-file:last-child {
      margin-bottom: 0;
    }

    .drive-file.processing {
      border-color: #efd28a;
      background: #fff7e5;
      transform: translateX(3px);
    }

    .drive-file.archived {
      border-color: #d2e3d6;
      background: #f3f8f4;
    }

    .pdf-icon {
      display: grid;
      width: 27px;
      height: 32px;
      place-items: center;
      border-radius: 5px;
      background: #c6534f;
      color: #fff;
      font-size: 7px;
      font-weight: 700;
    }

    .pipeline-body {
      min-height: 370px;
      padding: 18px 14px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .pipeline-step {
      position: relative;
      padding: 12px 12px 12px 42px;
      border: 1px solid #e5ddd4;
      border-radius: 12px;
      background: #fff;
      color: #68615a;
      font-size: 11px;
      font-weight: 700;
      transition: border-color .2s ease, background .2s ease, color .2s ease, transform .2s ease;
    }

    .pipeline-step + .pipeline-step {
      margin-top: 17px;
    }

    .pipeline-step + .pipeline-step::before {
      content: "↓";
      position: absolute;
      top: -18px;
      left: 50%;
      color: #aaa198;
      font-family: var(--font-tech);
      transform: translateX(-50%);
    }

    .pipeline-step span {
      position: absolute;
      left: 12px;
      top: 50%;
      width: 21px;
      height: 21px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: #ece7e0;
      color: #827a72;
      font-family: var(--font-tech);
      font-size: 9px;
      transform: translateY(-50%);
    }

    .pipeline-step.active {
      border-color: #efd28a;
      background: #fff7e5;
      color: #725400;
      transform: translateX(2px);
    }

    .pipeline-step.done {
      border-color: #cfe0d3;
      background: #f3f8f4;
      color: var(--green);
    }

    .pipeline-step.done span {
      background: var(--green);
      color: #fff;
    }

    .sheet-tabs {
      display: flex;
      gap: 6px;
      padding: 10px 12px 0;
      border-bottom: 1px solid #e7e0d8;
      background: #f7f4ef;
    }

    .sheet-tab {
      padding: 8px 11px;
      border: 1px solid #ddd5cc;
      border-bottom: 0;
      border-radius: 9px 9px 0 0;
      background: #eee9e3;
      color: #7b746c;
      font-family: var(--font-tech);
      font-size: 9px;
      cursor: pointer;
    }

    .sheet-tab.active {
      background: #fff;
      color: var(--green);
      font-weight: 700;
    }

    .pdf-sheet-window {
      height: 370px;
      overflow: auto;
      background: #fff;
    }

    .pdf-result-table {
      width: 100%;
      border-collapse: collapse;
      table-layout: fixed;
    }

    .pdf-result-table th,
    .pdf-result-table td {
      padding: 9px 8px;
      border-right: 1px solid #eee8e0;
      border-bottom: 1px solid #eee8e0;
      text-align: left;
      vertical-align: top;
      font-size: 9px;
      line-height: 1.35;
    }

    .pdf-result-table th {
      position: sticky;
      top: 0;
      z-index: 2;
      background: #f7f4ef;
      color: #5f5953;
      font-weight: 700;
    }

    .pdf-result-table td {
      color: #514c47;
      opacity: 0;
      transform: translateY(4px);
      transition: opacity .22s ease, transform .22s ease;
    }

    .pdf-result-table tr.show td {
      opacity: 1;
      transform: translateY(0);
    }

    .pdf-case-controls {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 14px;
      align-items: center;
      margin-top: 18px;
      padding: 16px 18px;
      border: 1px solid var(--border-blue);
      border-radius: 16px;
      background: #f1f6f9;
    }

    .pdf-log {
      min-height: 42px;
      color: #50616a;
      font-family: var(--font-tech);
      font-size: 10px;
      line-height: 1.55;
    }

    .pdf-run-button {
      min-height: 46px;
      padding: 0 20px;
      border: 0;
      border-radius: 12px;
      background: var(--blue);
      color: #fff;
      font-family: var(--font-main);
      font-size: 13px;
      font-weight: 700;
      cursor: pointer;
      box-shadow: 0 10px 24px rgba(47,111,159,.18);
      transition: background .2s ease, transform .2s ease;
    }

    .pdf-run-button:hover {
      background: var(--blue-hover);
      transform: translateY(-1px);
    }

    .pdf-run-button:disabled {
      opacity: .62;
      cursor: wait;
      transform: none;
    }

    .pdf-summary {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 10px;
      margin-top: 14px;
    }

    .pdf-summary-item {
      padding: 14px 12px;
      border: 1px solid #e8e2da;
      border-radius: 14px;
      background: #fcfbf9;
      text-align: center;
    }

    .pdf-summary-item strong {
      display: block;
      color: var(--blue);
      font-family: var(--font-tech);
      font-size: 18px;
      line-height: 1;
    }

    .pdf-summary-item span {
      display: block;
      margin-top: 7px;
      color: var(--text-muted);
      font-size: 10px;
      line-height: 1.35;
    }

    @media (max-width: 980px) {
      .pdf-case-grid {
        grid-template-columns: 1fr;
      }

      .drive-body,
      .pipeline-body {
        min-height: auto;
      }

      .pipeline-body {
        display: grid;
        grid-template-columns: repeat(5, 1fr);
        gap: 8px;
      }

      .pipeline-step + .pipeline-step {
        margin-top: 0;
      }

      .pipeline-step + .pipeline-step::before {
        content: "→";
        top: 50%;
        left: -8px;
        transform: translate(-50%, -50%);
      }
    }

    @media (max-width: 760px) {
      .pdf-case {
        margin-top: 18px;
        padding: 26px 16px;
        border-radius: 18px;
      }

      .case2-problem-solution {
        grid-template-columns: 1fr;
        gap: 12px;
        margin-top: 22px;
      }
      
      .case2-info-card {
        padding: 20px 18px 22px;
      }
      
      .case2-info-card h3 {
        font-size: 15px;
      }
      
      .case2-info-card p {
        font-size: 12px;
        line-height: 1.7;
      }
          
      .pipeline-body {
        grid-template-columns: 1fr;
      }

      .pipeline-step + .pipeline-step {
        margin-top: 17px;
      }

      .pipeline-step + .pipeline-step::before {
        content: "↓";
        top: -18px;
        left: 50%;
        transform: translateX(-50%);
      }

      .pdf-case-controls {
        grid-template-columns: 1fr;
      }

      .pdf-run-button {
        width: 100%;
      }

      .pdf-summary {
        grid-template-columns: repeat(2, 1fr);
      }

      .pdf-result-table th:nth-child(1),
      .pdf-result-table td:nth-child(1),
      .pdf-result-table th:nth-child(6),
      .pdf-result-table td:nth-child(6) {
        display: none;
      }
    }