.case-study,
.case-entry-section,
.product-case-link {
    --case-blue: #00438b;
    --case-teal: #177a8b;
    --case-ink: #17202a;
    --case-muted: #5d6874;
    --case-line: #dfe6eb;
    --case-soft: #f4f7f9;
    box-sizing: border-box;
}
.case-study *,
.case-entry-section *,
.product-case-link * { box-sizing: border-box; }
.case-shell { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.case-hero { background: linear-gradient(135deg, #073b70 0%, #005a86 58%, #14828f 100%); color: #fff; padding: 28px 0 68px; }
.case-breadcrumb { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 42px; font-size: 14px; color: rgba(255,255,255,.72); }
.case-breadcrumb a { color: #fff; text-decoration: none; }
.case-hero-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr); gap: 58px; align-items: center; }
.case-kicker { margin: 0 0 12px; color: #66d7df; font-size: 13px; font-weight: 700; letter-spacing: .16em; }
.case-hero h1 { margin: 0; color: #fff; font-size: clamp(34px, 4.2vw, 56px); line-height: 1.2; font-weight: 600; letter-spacing: -.025em; }
.case-lead { margin: 24px 0 28px; max-width: 760px; font-size: 17px; line-height: 1.9; color: rgba(255,255,255,.9); }
.case-quick-facts { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1px; margin: 0; background: rgba(255,255,255,.2); border: 1px solid rgba(255,255,255,.2); }
.case-quick-facts div { padding: 14px 16px; background: rgba(0,25,52,.32); }
.case-quick-facts dt { margin-bottom: 4px; font-size: 12px; color: rgba(255,255,255,.65); }
.case-quick-facts dd { margin: 0; font-size: 15px; line-height: 1.45; color: #fff; }
.case-hero-media { margin: 0; padding: 22px; border-radius: 4px; background: #fff; box-shadow: 0 24px 60px rgba(0,0,0,.24); }
.case-hero-media img { display: block; width: 100%; max-height: 520px; object-fit: contain; }
.case-hero-media figcaption { margin-top: 12px; color: #5d6874; font-size: 13px; text-align: center; }
.case-hero-media-light { background: #f8fafb; }
.case-body { padding: 10px 0 72px; }
.case-section { padding: 66px 0; border-bottom: 1px solid var(--case-line); }
.case-section-label { margin: 0 0 12px; color: var(--case-teal); font-size: 13px; font-weight: 700; letter-spacing: .12em; }
.case-section h2 { margin: 0 0 22px; max-width: 860px; color: var(--case-ink); font-size: clamp(28px, 3vw, 38px); line-height: 1.32; font-weight: 600; }
.case-section p { margin: 0 0 16px; color: var(--case-muted); font-size: 17px; line-height: 1.95; }
.case-intro-grid { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(280px, .55fr); gap: 60px; align-items: start; }
.case-challenge-box { padding: 30px; background: var(--case-soft); border-top: 4px solid var(--case-teal); }
.case-challenge-box h3 { margin: 0 0 18px; color: var(--case-ink); font-size: 21px; }
.case-challenge-box ul { margin: 0; padding-left: 20px; }
.case-challenge-box li { margin: 11px 0; color: #48525d; font-size: 15px; line-height: 1.7; }
.case-solution-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; margin-top: 32px; }
.case-solution-grid div { padding: 26px 20px; border: 1px solid var(--case-line); background: #fff; }
.case-solution-grid strong { display: block; margin-bottom: 8px; color: var(--case-blue); font-size: 28px; line-height: 1.1; }
.case-solution-grid span { color: var(--case-muted); font-size: 14px; }
.case-table-wrap { overflow-x: auto; border: 1px solid var(--case-line); }
.case-spec-table { width: 100%; border-collapse: collapse; background: #fff; }
.case-spec-table th,
.case-spec-table td { padding: 16px 18px; border-bottom: 1px solid var(--case-line); text-align: left; vertical-align: middle; font-size: 15px; line-height: 1.65; }
.case-spec-table th { width: 15%; color: #233341; background: var(--case-soft); font-weight: 600; }
.case-spec-table td { width: 35%; color: #4b5660; }
.case-spec-table tr:last-child th,
.case-spec-table tr:last-child td { border-bottom: 0; }
.case-field-grid { display: grid; grid-template-columns: minmax(0,1fr) 380px; gap: 60px; align-items: center; }
.case-video-frame { margin: 0; }
.case-video-frame video { display: block; width: 100%; max-height: 620px; background: #111; border-radius: 4px; }
.case-video-frame figcaption,
.case-gallery figcaption { margin-top: 10px; color: #737d87; font-size: 13px; text-align: center; }
.case-note { padding: 12px 16px; border-left: 3px solid var(--case-teal); background: var(--case-soft); font-size: 14px !important; }
.case-gallery { display: grid; grid-template-columns: 1.5fr .7fr; gap: 24px; align-items: stretch; }
.case-gallery figure { margin: 0; padding: 16px; border: 1px solid var(--case-line); background: #fff; }
.case-gallery img { display: block; width: 100%; height: 420px; object-fit: contain; }
.case-value-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
.case-value-grid div { padding: 28px; background: var(--case-soft); border-bottom: 3px solid var(--case-blue); }
.case-value-grid h3 { margin: 0 0 12px; color: var(--case-ink); font-size: 20px; }
.case-value-grid p { margin: 0; font-size: 15px; line-height: 1.75; }
.case-related { display: flex; justify-content: space-between; gap: 40px; align-items: center; margin-top: 66px; padding: 38px 42px; background: #063f72; color: #fff; }
.case-related h2 { margin: 0 0 8px; color: #fff; font-size: 28px; }
.case-related p { margin: 0; max-width: 680px; color: rgba(255,255,255,.78); font-size: 15px; line-height: 1.75; }
.case-related-actions { display: flex; gap: 10px; flex-shrink: 0; }
.case-button { display: inline-block; padding: 13px 20px; background: #fff; color: #064276; text-decoration: none; font-weight: 600; white-space: nowrap; }
.case-button-ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.65); }
.case-entry-section { margin-top: 58px; padding: 48px 0 12px; border-top: 1px solid var(--case-line); }
.case-entry-heading { max-width: 760px; margin-bottom: 26px; }
.case-entry-heading h2 { margin: 0 0 10px; color: var(--case-ink); font-size: 30px; font-weight: 600; }
.case-entry-heading > p:last-child { margin: 0; color: var(--case-muted); font-size: 15px; line-height: 1.75; }
.case-card-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 24px; }
.case-card { overflow: hidden; border: 1px solid var(--case-line); background: #fff; }
.case-card > a { display: block; height: 260px; background: var(--case-soft); }
.case-card img { display: block; width: 100%; height: 100%; object-fit: contain; }
.case-card-body { padding: 24px; }
.case-card-tag { margin: 0 0 8px; color: var(--case-teal); font-size: 12px; font-weight: 700; }
.case-card h3 { margin: 0 0 12px; font-size: 21px; line-height: 1.5; }
.case-card h3 a { color: var(--case-ink); text-decoration: none; }
.case-card-body > p:not(.case-card-tag) { margin: 0 0 14px; color: var(--case-muted); font-size: 14px; line-height: 1.7; }
.case-text-link { color: var(--case-blue); font-size: 14px; font-weight: 600; text-decoration: none; }
.product-case-link { margin-top: 34px; padding: 26px 30px; background: var(--case-soft); border-left: 4px solid var(--case-teal); }
.product-case-link span { color: var(--case-teal); font-size: 12px; font-weight: 700; }
.product-case-link h2 { margin: 8px 0; color: var(--case-ink); font-size: 22px; }
.product-case-link p { margin: 0 0 14px; color: var(--case-muted); font-size: 15px; line-height: 1.7; }
.product-case-link a { color: var(--case-blue); font-weight: 600; text-decoration: none; }
@media (max-width: 900px) {
    .case-hero-grid,
    .case-intro-grid,
    .case-field-grid { grid-template-columns: 1fr; }
    .case-hero-grid { gap: 34px; }
    .case-solution-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .case-related { align-items: flex-start; flex-direction: column; }
    .case-gallery img { height: 320px; }
}
@media (max-width: 640px) {
    .case-shell { width: min(100% - 28px, 1120px); }
    .case-hero { padding: 20px 0 44px; }
    .case-breadcrumb { margin-bottom: 28px; }
    .case-hero h1 { font-size: 31px; }
    .case-lead { font-size: 16px; line-height: 1.75; }
    .case-quick-facts,
    .case-card-grid,
    .case-value-grid,
    .case-gallery { grid-template-columns: 1fr; }
    .case-section { padding: 46px 0; }
    .case-section h2 { font-size: 27px; }
    .case-section p { font-size: 16px; line-height: 1.8; }
    .case-solution-grid { grid-template-columns: 1fr 1fr; }
    .case-solution-grid strong { font-size: 23px; }
    .case-spec-table { min-width: 680px; }
    .case-gallery img { height: auto; max-height: 420px; }
    .case-related { margin-top: 46px; padding: 28px 24px; }
    .case-related-actions { width: 100%; flex-direction: column; }
    .case-button { text-align: center; }
    .case-card > a { height: 210px; }
}