.case-demo {
      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);
    }

    .case-demo-header {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 28px;
    }

    .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 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;
    }

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

    .case-demo-grid {
      display: grid;
      grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
      gap: 18px;
    }

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

    .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;
    }

    .statement-window {
      height: 390px;
      overflow: auto;
      padding: 12px;
      background: #f8f7f4;
    }

    .statement-line {
      display: grid;
      grid-template-columns: 72px 1fr 86px;
      gap: 10px;
      padding: 10px 11px;
      border-bottom: 1px dashed #ddd5cc;
      color: #4e4a45;
      font-family: var(--font-tech);
      font-size: 10px;
      line-height: 1.45;
      opacity: .42;
      transition: opacity .22s ease, background .22s ease, transform .22s ease;
    }

    .statement-line.active {
      opacity: 1;
      background: #fff9e8;
      transform: translateX(2px);
    }

    .statement-line.done {
      opacity: .82;
      background: #f7faf7;
    }

    .statement-date {
      color: #7d766e;
      white-space: nowrap;
    }

    .statement-text {
      overflow-wrap: anywhere;
    }

    .statement-amount {
      text-align: right;
      white-space: nowrap;
      font-weight: 600;
    }

    .result-window {
      height: 390px;
      overflow: auto;
      background: #ffffff;
    }

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

    .result-table th,
    .result-table td {
      padding: 11px 10px;
      border-bottom: 1px solid #eee8e0;
      text-align: left;
      vertical-align: top;
    }

    .result-table th {
      position: sticky;
      top: 0;
      z-index: 2;
      background: #f7f4ef;
      color: #5c5751;
      font-size: 10px;
      font-weight: 700;
    }

    .result-table td {
      color: #504b46;
      font-size: 10px;
      line-height: 1.45;
      opacity: 0;
      transform: translateY(5px);
      transition: opacity .22s ease, transform .22s ease;
    }

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

    .category-chip {
      display: inline-flex;
      padding: 5px 8px;
      border: 1px solid #d9e6dc;
      border-radius: 999px;
      background: #f3f8f4;
      color: var(--green);
      font-family: var(--font-tech);
      font-size: 9px;
      font-weight: 600;
      line-height: 1;
    }

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

    .demo-progress-wrap {
      min-width: 0;
    }

    .demo-progress-label {
      display: flex;
      justify-content: space-between;
      gap: 14px;
      margin-bottom: 8px;
      color: #50675a;
      font-size: 12px;
      font-weight: 700;
    }

    .demo-progress-track {
      height: 8px;
      overflow: hidden;
      border-radius: 999px;
      background: #dce8df;
    }

    .demo-progress-bar {
      width: 0;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--green), #5f8a72);
      transition: width .22s ease;
    }

    .demo-run-button {
      min-height: 46px;
      padding: 0 20px;
      border: 0;
      border-radius: 12px;
      background: var(--green);
      color: #fff;
      font-family: var(--font-main);
      font-size: 13px;
      font-weight: 700;
      cursor: pointer;
      box-shadow: 0 10px 24px rgba(53, 89, 75, .18);
      transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
    }

    .demo-run-button:hover {
      background: var(--green-hover);
      transform: translateY(-1px);
      box-shadow: 0 14px 28px rgba(53, 89, 75, .24);
    }

    .demo-run-button:disabled {
      opacity: .62;
      cursor: wait;
      transform: none;
      box-shadow: none;
    }

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

    .demo-stat {
      padding: 15px 14px;
      border: 1px solid #e8e2da;
      border-radius: 14px;
      background: #fcfbf9;
      text-align: center;
    }

    .demo-stat strong {
      display: block;
      color: var(--green);
      font-family: var(--font-tech);
      font-size: 20px;
      line-height: 1;
    }

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

    .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);
    }

    @media (max-width: 900px) {
      .case-demo {
        padding: 32px;
      }

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

      .statement-window,
      .result-window {
        height: 340px;
      }
    }

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

      .case-demo-header {
        display: block;
        margin-bottom: 20px;
      }

      .case-demo h2 {
        font-size: 1.8rem;
      }

      .statement-window,
      .result-window {
        height: 310px;
      }

      .statement-line {
        grid-template-columns: 62px 1fr;
        font-size: 9px;
      }

      .statement-amount {
        grid-column: 2;
        text-align: left;
      }

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

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

      .case-demo-stats {
        grid-template-columns: repeat(2, 1fr);
      }

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


    .statement-line.warning {
      opacity: 1;
      background: #fff5dc;
    }

    .statement-line.error {
      opacity: 1;
      background: #ffe8e8;
    }

    .category-chip.warning {
      border-color: #efd28a;
      background: #fff5dc;
      color: #8b6500;
    }

    .category-chip.error {
      border-color: #efb0b0;
      background: #ffe8e8;
      color: #9a2f2f;
    }

    .result-table tr.warning td {
      background: #fffaf0;
    }

    .result-table tr.error td {
      background: #fff2f2;
    }