.case-contents { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 20px; padding-block: 20px; margin-bottom: 40px; border-block: 1px solid var(--line); }
.case-contents a { display: flex; flex-direction: column; gap: 8px; font-size: 14px; line-height: 1.6; }
.case-contents span { color: var(--coral); font: 12px var(--mono); }
.case-contents a:hover { color: var(--coral); }
.case-contents a:focus-visible { outline: 2px solid var(--coral); outline-offset: 5px; }
.case-section-heading { display: grid; grid-template-columns: 220px 1fr; align-items: start; gap: 35px; margin-bottom: 27px; }
.case-section-heading > span { padding-top: 10px; color: var(--coral); font: 11px var(--mono); }
.case-section-heading h2 { max-width: 700px; margin: 0; font-size: 28px; line-height: 1.4; }
.case-summary { padding: 63px 0 70px; background: #e7ece2; }
.case-summary-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 39px; margin-left: 255px; }
.case-summary-grid p, .case-section-copy > p, .case-section-intro, .validation-layout > p, .tooling-copy p { color: #596057; font-size: 15px; line-height: 2; }
.case-summary-grid b { color: var(--ink); }
.case-process { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 42px; background: #afbdad; border: 1px solid #afbdad; }
.case-process > div { min-height: 135px; display: flex; flex-direction: column; padding: 19px; background: #f4f6f0; }
.case-process span { color: var(--coral); font: 11px var(--mono); }
.case-process b { margin: 19px 0 7px; font-size: 15px; }
.case-process small { color: var(--muted); font-size: 12px; }
.case-iteration { display: flex; justify-content: center; align-items: center; gap: 25px; margin: 22px 0 0; color: var(--green); font-size: 15px; }
.case-iteration i { color: var(--coral); font-style: normal; }
.benchmark-content { margin-left: 255px; }
.benchmark-judgment { margin-bottom: 13px; color: var(--green); font-size: 21px; font-weight: 600; line-height: 1.6; }
.benchmark-intro { margin-bottom: 28px; color: #596057; font-size: 14px; line-height: 2; }
.benchmark-structure { margin: 0 0 36px; padding: 28px; border: 1px solid var(--line); }
.benchmark-structure figcaption { display: flex; justify-content: space-between; gap: 15px; margin-bottom: 28px; color: var(--green); font: 12px/1.8 var(--mono); }
.benchmark-structure figcaption span { color: var(--muted); }
.benchmark-inputs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.benchmark-inputs > div { min-width: 0; padding-top: 13px; border-top: 1px solid var(--line); }
.benchmark-inputs span { color: var(--coral); font: 12px var(--mono); }
.benchmark-inputs h3 { margin: 17px 0 9px; font-size: 17px; font-weight: 500; line-height: 1.5; }
.benchmark-inputs p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.8; }
.benchmark-arrow { margin: 18px 0; color: var(--green); text-align: center; font-size: 22px; }
.benchmark-case-output, .benchmark-maintenance { padding: 22px; text-align: center; }
.benchmark-case-output { background: #e7ece2; }
.benchmark-maintenance { border: 1px solid var(--line); }
.benchmark-case-output h3, .benchmark-maintenance h3 { margin-bottom: 9px; font-size: 18px; line-height: 1.6; font-weight: 600; }
.benchmark-case-output p, .benchmark-maintenance p { margin: 0; color: #596057; font-size: 15px; line-height: 1.9; }
.benchmark-example { padding: 28px; background: var(--paper-deep); }
.benchmark-example-label { margin-bottom: 18px; color: var(--green); font: 12px/1.8 var(--mono); }
.benchmark-example > h3 { margin-bottom: 24px; font-size: 23px; line-height: 1.5; }
.benchmark-tags { display: grid; grid-template-columns: 1fr 1.8fr; gap: 24px; margin: 0 0 25px; padding-block: 20px; border-block: 1px solid var(--line); }
.benchmark-tags dt { margin-bottom: 10px; color: var(--muted); font-size: 14px; }
.benchmark-tags dd { margin: 0; color: var(--ink); font-size: 15px; line-height: 2; }
.benchmark-example h4 { margin: 0 0 10px; font-size: 15px; font-weight: 600; line-height: 1.7; }
.benchmark-example-task p, .benchmark-acceptance p { margin: 0; color: #596057; font-size: 14px; line-height: 1.9; }
.benchmark-example-task ol { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; margin: 20px 0 26px; padding: 0; list-style: none; background: var(--line); border: 1px solid var(--line); }
.benchmark-example-task li { padding: 16px 12px; background: var(--paper); color: var(--green); font-size: 14px; line-height: 1.8; }
.benchmark-acceptance { display: grid; grid-template-columns: 1fr 1fr; gap: 25px; }
.benchmark-acceptance > div { padding-top: 17px; border-top: 2px solid var(--green); }
.benchmark-acceptance > div:last-child { border-color: var(--coral); }
.benchmark-acceptance span { display: block; margin-bottom: 10px; color: var(--muted); font-size: 13px; }
.benchmark-example-note { margin: 23px 0 0; color: var(--muted); font-size: 13px; line-height: 1.9; }
.case-section { padding-top: 82px; padding-bottom: 82px; border-bottom: 1px solid var(--line); }
.framework-layout { display: grid; grid-template-columns: 220px 1fr; gap: 35px; }
.case-section-copy { grid-column: 2; }
.case-section-copy > p { margin: 0; }
.method-note { display: flex; flex-direction: column; padding: 18px 20px; border-left: 3px solid var(--green); background: #edf0e8; }
.method-note span { margin-bottom: 16px; color: var(--green); font: 11px var(--mono); }
.method-note b { margin-bottom: 8px; font-size: 15px; }
.method-note small { color: #596057; font-size: 14px; line-height: 1.9; }
.method-note span { line-height: 1.8; }
.trace-decision-note { margin: 0 0 30px 255px; padding: 18px 20px; border-left: 3px solid var(--green); background: #f4f5ef; }
.trace-decision-note > span { color: var(--green); font: 12px/1.8 var(--mono); }
.trace-decision-note p { margin: 12px 0 0; color: #596057; font-size: 15px; line-height: 2; }
.trace-decision-note b { color: var(--ink); }
.dimension-list { grid-column: 2; margin-top: 13px; border-top: 1px solid var(--line); }
.dimension-list > div { display: grid; grid-template-columns: 55px 1fr 155px; gap: 16px; align-items: center; min-height: 63px; border-bottom: 1px solid var(--line); }
.dimension-list span { color: var(--coral); font: 12px var(--mono); }
.dimension-list b { font-size: 14px; }
.dimension-list small { color: var(--muted); font-size: 12px; text-align: right; }
.diagnosis-section { background: #e9e8df; }
.case-section-intro { max-width: 740px; margin-left: 255px; margin-bottom: 34px; }
.trace-map { margin-left: 255px; }
.trace-start { display: flex; justify-content: space-between; gap: 15px; padding: 17px 19px; color: white; background: var(--green); }
.trace-start span { font: 12px var(--mono); }.trace-start b { font-size: 15px; }
.trace-branches { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; padding-top: 22px; }
.trace-branches > div { min-height: 125px; display: flex; flex-direction: column; padding: 17px 14px; border-top: 2px solid var(--coral); background: #f7f6f0; }
.trace-branches > div:nth-child(2) { border-color: var(--orange); }.trace-branches > div:nth-child(3) { border-color: var(--lime); }.trace-branches > div:nth-child(4) { border-color: var(--green); }
.trace-branches span { color: var(--muted); font: 10px var(--mono); }
.trace-branches b { margin: 18px 0 5px; font-size: 14px; }.trace-branches small { color: var(--muted); font-size: 11px; line-height: 1.5; }
.diagram-caption { margin: 14px 0 0 255px; color: var(--muted); font-size: 12px; }
.validation-layout { display: grid; grid-template-columns: 220px 1fr; gap: 35px; }
.validation-layout > p { grid-column: 2; max-width: 740px; margin: 0 0 5px; }
.validation-steps { grid-column: 2; display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 0; padding: 0; list-style: none; }
.validation-steps li { min-height: 120px; display: flex; flex-direction: column; padding: 19px 17px; background: #e7ece2; }
.validation-steps span { color: var(--coral); font: 11px var(--mono); }.validation-steps b { margin: 16px 0 7px; font-size: 14px; }.validation-steps small { color: var(--muted); font-size: 11px; line-height: 1.7; }
.tooling-section { background: #e4e4d9; }
.tooling-layout { display: grid; grid-template-columns: 220px 1fr; gap: 35px; }
.tooling-copy { grid-column: 2; display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }.tooling-copy p { margin-bottom: 0; }
.tooling-visual { grid-column: 2; margin-top: 11px; padding: 21px 23px; color: #edf2e8; background: #26372e; }
.tooling-head { display: flex; justify-content: space-between; padding-bottom: 15px; border-bottom: 1px solid #ffffff35; color: #afc5b1; font: 11px var(--mono); }
.tooling-row { display: flex; justify-content: space-between; gap: 15px; padding: 19px 0; border-bottom: 1px solid #ffffff35; }.tooling-row span { color: #e8b17a; font: 11px var(--mono); }.tooling-row b { font-size: 14px; }
.tooling-checks { display: grid; grid-template-columns: repeat(4, 1fr); gap: 7px; padding: 20px 0; border-bottom: 1px solid #ffffff35; }.tooling-checks span { padding: 12px; border: 1px solid #a8beab7d; text-align: center; font-size: 13px; }
.tooling-output { border-bottom: 0; }
.tooling-result { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-top: 20px; border-top: 1px solid #ffffff35; }.tooling-result span { color: #afc5b1; font: 11px var(--mono); }.tooling-result strong { color: #f0b77e; font-size: 21px; }
.case-end { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding-top: 35px; padding-bottom: 35px; }.case-end p { max-width: 720px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.8; }

@media (max-width: 950px) {
  .case-section-heading, .framework-layout, .validation-layout, .tooling-layout { grid-template-columns: 145px 1fr; gap: 20px; }
  .case-summary-grid, .case-section-intro, .trace-map, .trace-decision-note { margin-left: 165px; }
  .diagram-caption { margin-left: 165px; }
  .benchmark-content { margin-left: 165px; }
  .benchmark-structure, .benchmark-example { padding: 22px; }
  .benchmark-inputs { gap: 14px; }
  .case-contents { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .trace-branches { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
  .case-summary { padding-block: 44px; }
  .case-section-heading { display: block; margin-bottom: 20px; }
  .case-section-heading > span { display: block; margin-bottom: 14px; padding: 0; }
  .case-section-heading h2 { font-size: 23px; }
  .case-summary-grid { display: block; margin: 0; }
  .case-summary-grid p, .case-section-copy > p, .case-section-intro, .validation-layout > p, .tooling-copy p { font-size: 14px; }
  .case-contents { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-bottom: 28px; }
  .case-process { grid-template-columns: 1fr; margin-top: 25px; }
  .case-process > div { min-height: 106px; padding: 17px; }.case-process b { margin-top: 12px; font-size: 15px; }.case-process small { font-size: 14px; }
  .case-iteration { gap: 12px; font-size: 14px; }
  .benchmark-content { margin-left: 0; }
  .benchmark-judgment { font-size: 19px; }
  .benchmark-structure, .benchmark-example { padding: 20px 18px; }
  .benchmark-structure figcaption { flex-direction: column; gap: 4px; margin-bottom: 20px; }
  .benchmark-inputs, .benchmark-tags, .benchmark-acceptance, .benchmark-example-task ol { grid-template-columns: 1fr; }
  .benchmark-inputs { gap: 20px; }
  .benchmark-inputs h3 { margin-top: 12px; }
  .benchmark-case-output, .benchmark-maintenance { padding: 18px 14px; }
  .benchmark-example > h3 { font-size: 21px; }
  .benchmark-example-task li { padding: 13px; }
  .case-section { padding-block: 49px; }
  .framework-layout, .validation-layout, .tooling-layout { display: block; }
  .case-section-copy, .tooling-copy { display: block; }.case-section-copy > p, .tooling-copy p { margin-bottom: 17px; }
  .method-note { padding: 14px 16px; }
  .dimension-list { margin-top: 22px; }
  .dimension-list > div { grid-template-columns: 28px 1fr auto; gap: 7px; min-height: 56px; }
  .dimension-list b { font-size: 13px; }.dimension-list small { font-size: 10px; }
  .case-section-intro, .trace-map, .diagram-caption, .trace-decision-note { margin-left: 0; }
  .trace-start { flex-direction: column; gap: 5px; }.trace-start b { font-size: 13px; }
  .trace-branches { gap: 6px; padding-top: 11px; }.trace-branches > div { min-height: 105px; padding: 12px; }.trace-branches b { margin-top: 12px; font-size: 12px; }.trace-branches small { font-size: 10px; }
  .validation-layout > p { margin-bottom: 18px; }
  .validation-steps { grid-template-columns: 1fr; }.validation-steps li { min-height: 74px; padding: 12px; }.validation-steps b { margin: 8px 0 4px; }
  .tooling-visual { margin-top: 14px; padding: 16px 13px; }.tooling-head { font-size: 9px; }.tooling-row b { font-size: 12px; }.tooling-checks span { padding: 9px 4px; font-size: 11px; }.tooling-result { align-items: flex-start; flex-direction: column; gap: 9px; }.tooling-result strong { font-size: 18px; }
  .case-end { align-items: flex-start; flex-direction: column; gap: 19px; }
}