.reference-depth { margin-top: 30px; padding: 26px 28px 28px; border: 1px solid #e0d8ce; border-top: 4px solid #a4000c; background: #fff; }
.reference-depth > header { margin-bottom: 20px; }
.reference-depth > header span { display: block; color: #a4000c; font: 700 11px/1.2 Inter, Manrope, sans-serif; letter-spacing: .08em; }
.reference-depth > header h2 { margin: 7px 0 0; color: #1a1a1a; font-size: clamp(21px, 2vw, 28px); line-height: 1.4; }
.reference-depth-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.reference-depth-grid article { min-width: 0; padding: 18px; border: 1px solid #e0d8ce; background: #f2ece3; }
.reference-depth-grid h3 { margin: 0; color: #1a1a1a; font-size: 17px; line-height: 1.5; }
.reference-depth-grid p { margin: 9px 0 0; color: #514b45; font-size: 13px; line-height: 1.85; }
.reference-depth-table { overflow-x: auto; border: 1px solid #e0d8ce; }
.reference-depth table { width: 100%; min-width: 620px; border-collapse: collapse; color: #1a1a1a; font-size: 13px; line-height: 1.65; }
.reference-depth th, .reference-depth td { padding: 12px 14px; border-bottom: 1px solid #e0d8ce; text-align: left; vertical-align: top; }
.reference-depth thead th { background: #a4000c; color: #fff; font-weight: 700; }
.reference-depth tbody tr:nth-child(even) { background: #f2ece3; }
.reference-depth tbody tr:hover { background: #fff0ed; }
.reference-depth-note { margin: 18px 0 0; padding: 15px 17px; border-left: 4px solid #c8a45c; background: #fff8ec; color: #514b45; font-size: 13px; line-height: 1.85; }
.reference-depth-steps { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
.reference-depth-steps li { display: grid; grid-template-columns: 76px minmax(0, 1fr); gap: 14px; align-items: start; padding: 13px 15px; border: 1px solid #e0d8ce; background: #f2ece3; color: #514b45; font-size: 13px; line-height: 1.8; }
.reference-depth-steps b { color: #a4000c; font-family: "Roboto Mono", "IBM Plex Mono", monospace; font-size: 12px; letter-spacing: .04em; }
.reference-depth-rail { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 0; border: 1px solid #e0d8ce; }
.reference-depth-rail b, .reference-depth-rail span { padding: 13px 15px; border-bottom: 1px solid #e0d8ce; }
.reference-depth-rail b { color: #a4000c; background: #f2ece3; font-family: "Roboto Mono", "IBM Plex Mono", monospace; }
.reference-depth-rail span { color: #514b45; }
.reference-depth-checklist { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 0; padding: 0; list-style: none; }
.reference-depth-checklist li { display: grid; gap: 6px; padding: 16px; border: 1px solid #e0d8ce; background: #f2ece3; }
.reference-depth-checklist b { color: #a4000c; font-family: "Roboto Mono", "IBM Plex Mono", monospace; }
.reference-depth-checklist span { color: #514b45; font-size: 13px; line-height: 1.8; }
@media (max-width: 760px) {
    .reference-depth { padding: 21px 17px 22px; }
    .reference-depth-grid, .reference-depth-checklist { grid-template-columns: 1fr; }
    .reference-depth-steps li { grid-template-columns: 62px minmax(0, 1fr); gap: 10px; }
    .reference-depth table { min-width: 560px; }

    /* S004 compares two finished sizes; each row becomes a complete size slip instead of a horizontally compressed table. */
    [data-batch-page="S004"] .reference-depth-table { overflow: visible; border: 0; }
    [data-batch-page="S004"] .reference-depth-table table { display: block; width: 100%; min-width: 0; }
    [data-batch-page="S004"] .reference-depth-table thead { display: none; }
    [data-batch-page="S004"] .reference-depth-table tbody { display: grid; gap: 12px; }
    [data-batch-page="S004"] .reference-depth-table tbody tr { display: grid; grid-template-columns: 1fr; border: 1px solid #e0d8ce; background: #fff; }
    [data-batch-page="S004"] .reference-depth-table tbody tr:nth-child(even) { background: #f2ece3; }
    [data-batch-page="S004"] .reference-depth-table tbody th,
    [data-batch-page="S004"] .reference-depth-table tbody td { display: block; min-width: 0; padding: 12px 14px; border: 0; border-bottom: 1px solid #e0d8ce; overflow-wrap: anywhere; }
    [data-batch-page="S004"] .reference-depth-table tbody tr > *:last-child { border-bottom: 0; }
    [data-batch-page="S004"] .reference-depth-table tbody th { color: #a4000c; background: #fff4f1; font-size: 16px; }
    [data-batch-page="S004"] .reference-depth-table tbody tr:nth-child(even) th { background: #fff8ec; }
    [data-batch-page="S004"] .reference-depth-table tbody th::before,
    [data-batch-page="S004"] .reference-depth-table tbody td::before { display: block; margin-bottom: 4px; color: #6b6560; font: 700 10px/1.4 "IBM Plex Mono", "Roboto Mono", monospace; letter-spacing: .03em; }
    [data-batch-page="S004"] .reference-depth-table tbody th::before { content: "判型"; }
    [data-batch-page="S004"] .reference-depth-table tbody td:nth-child(2)::before { content: "仕上がり"; }
    [data-batch-page="S004"] .reference-depth-table tbody td:nth-child(3)::before { content: "350dpiの参考値"; }
    [data-batch-page="S004"] .reference-depth-table tbody td:nth-child(4)::before { content: "確認する場面"; }
}