/* Compact design attribution; retain readable wrapping at narrow widths. */
body.portfolio-case .case-contribution{padding:24px 0;border-bottom:1px solid var(--line,rgba(127,127,127,.18));background:var(--paper,#fff);color:var(--ink,#25272b)}
body.portfolio-case .case-contribution p{margin:0;font-size:14px;line-height:1.8;max-width:none}
.case-contribution strong{font-weight:600;margin-right:16px}
body.portfolio-case--ioc .case-contribution{background:#071723;color:#dce7ee}
body.portfolio-case--grc .case-contribution{background:#fff;color:#182238}
body.portfolio-case .lean-boundary{margin:24px 0 0;font-size:12px;line-height:1.8;color:inherit;opacity:.75}
@media(max-width:760px){.case-contribution strong{display:block;margin:0 0 8px}}

/* Preserve the two active layout rules from the retired responsibility sheet. */
body.portfolio-case--grc .hero > .wrap:not(.hero-grid){position:relative;z-index:1}
body.portfolio-case--ioc .hero__content{padding-bottom:80px}
/* A single case heading now leads directly into its explanation. */
body.portfolio-case--bangyang #backend .design-case-label + .surface-case-intro,
body.portfolio-case--bangyang #backend .design-case-label + .crm-task-head{margin-top:24px}

/* Promote project-level design work without shrinking any evidence image. */
body.portfolio-case--bangyang #backend .backend-key-work{list-style:none;margin:32px 0;padding:0;border-top:1px solid var(--line)}
body.portfolio-case--bangyang #backend .backend-key-work>li{display:grid;grid-template-columns:minmax(240px,.9fr) minmax(0,1.35fr);gap:32px;padding:24px 0;border-bottom:1px solid var(--line)}
body.portfolio-case--bangyang #backend .backend-key-work small{display:block;margin-bottom:8px;color:var(--blue);font-size:12px;line-height:1.7}
body.portfolio-case--bangyang #backend .backend-key-work h3{margin:0;font-size:20px;line-height:1.5}
body.portfolio-case--bangyang #backend .backend-key-work p{margin:0;font-size:16px;line-height:1.8;color:var(--muted)}
@media(max-width:900px){body.portfolio-case--bangyang #backend .backend-key-work>li{grid-template-columns:1fr;gap:12px}}

body.portfolio-case--bangyang #backend .backend-problem-note{margin:24px 0 32px;padding-left:16px;border-left:2px solid var(--blue);font-size:16px;line-height:1.8;color:var(--muted)}
body.portfolio-case--bangyang #backend .phase-two-brief{display:block;padding:24px 0}
body.portfolio-case--bangyang #backend .phase-two-context h3{margin:8px 0 12px;font-size:24px}