/* Loaded only by the overview; topic pages keep their existing presentation. */
.pt-overview .pt-toc-group>strong{align-items:center;margin-bottom:14px;gap:11px}
.pt-overview .pt-group-icon{width:34px;height:34px;flex-basis:34px;border-radius:9px;background:var(--theme-soft-bg,#e3eff1);border:1px solid var(--pt-line);color:var(--pt-accent);font-size:24px}
.pt-overview .pt-chapter-head .pt-group-icon{width:40px;height:40px;flex-basis:40px;background:var(--pt-paper);border-color:var(--pt-line)}
.pt-overview .pt-chapter-head{padding:18px 20px;gap:14px}
.pt-overview .pt-chapter-head p{font-size:20px}
.pt-overview .pt-chapter-number{flex:0 0 auto;white-space:nowrap}
.pt-overview #contents{scroll-margin-top:calc(var(--header-height,72px) + 18px)}
.pt-overview .pt-joining-section{width:100%;margin:8px auto 0;text-align:left;font-weight:400}
.pt-overview .pt-joining-section img{width:100%;height:auto;display:block;background:#fff;border:1px solid var(--pt-line);border-radius:10px}
.pt-overview .pt-joining-section figcaption{font-size:16px;line-height:1.45;color:var(--pt-muted);margin-top:10px}
.pt-overview .pt-comparison th:first-child{width:31%}
.pt-overview .pt-comparison tbody th{text-align:center;vertical-align:middle}
.pt-overview .pt-comparison tbody th a{display:inline-flex;align-items:center;justify-content:center;min-height:44px;font-size:20px}
.pt-overview .pt-comparison td{font-size:16px;line-height:1.55;vertical-align:middle}
.pt-overview .pt-visual-note{font-size:16px;line-height:1.6;color:var(--pt-muted);max-width:85ch;margin:12px 0 0}
.pt-overview .pt-component-visual{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:28px;align-items:center;margin:26px 0 34px;padding:22px;border:1px solid var(--pt-line);border-radius:16px;background:var(--pt-paper)}
.pt-overview .pt-component-visual>img{width:100%;height:auto;display:block;border-radius:9px;background:#fbfcfb}
.pt-overview .pt-component-visual figcaption{min-width:0}
.pt-overview .pt-component-labels{display:grid;gap:23px}
.pt-overview .pt-component-labels strong{display:block;font-size:21px;line-height:1.3;margin-bottom:8px;color:var(--pt-ink)}
.pt-overview .pt-component-labels p{font-size:16px;line-height:1.6;margin:0 0 5px}
.pt-overview .pt-component-labels a{display:inline-flex;align-items:center;min-height:44px;font-size:16px}
.pt-overview .pt-component-visual .pt-visual-note{margin:20px 0 0;padding-top:18px;border-top:1px solid var(--pt-line)}
.pt-overview .pt-flow-legend{gap:12px;margin-bottom:10px}
.pt-overview .pt-product-hero figcaption{font-size:16px;line-height:1.5;margin-top:12px}
.pt-overview .pt-hero:has(.pt-family-hero){display:flex;flex-direction:column;align-items:stretch;gap:24px}
.pt-overview .pt-hero:has(.pt-family-hero)>.pt-journeys{order:3}
.pt-overview .pt-family-hero{order:2;width:100%;max-width:none}
.pt-overview .pt-family-hero img{max-height:none}
.pt-overview .pt-family-hero figcaption{text-align:left}
.pt-overview .pt-family-hero figcaption>p{margin:12px 0;color:var(--pt-muted)}
.pt-overview .pt-hero-family-key{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px 20px;list-style:none;counter-reset:phe-family;padding:0;margin:16px 0}
.pt-overview .pt-hero-family-key li{counter-increment:phe-family;display:flex;align-items:baseline;gap:9px;min-width:0;font-size:16px;line-height:1.5}
.pt-overview .pt-hero-family-key li::before{content:counter(phe-family);font-weight:700;color:var(--pt-accent)}
.pt-overview .pt-hero-family-key a,.pt-overview .pt-hero-fullsize{display:inline-flex;align-items:center;min-height:44px;font-size:16px;line-height:1.5}
@media(max-width:700px){.pt-overview .pt-hero-family-key{grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 16px}}
@media(max-width:360px){.pt-overview .pt-hero-family-key{grid-template-columns:1fr}}
.pt-overview .pt-principle-realistic{padding:18px 16px;min-width:0}
.pt-overview .pt-principle-title{font-size:18px;font-weight:600;line-height:1.45;margin:0 0 14px}
.pt-overview .pt-principle-image{position:relative;overflow:hidden;border:1px solid var(--pt-line);border-radius:10px;background:#fff}
.pt-overview .pt-principle-image>img{display:block;width:100%;height:auto}
.pt-overview .pt-principle-image>.pt-principle-overlay{position:absolute;inset:0;width:100%;height:100%;margin:0;pointer-events:none}
.pt-overview .pt-principle-key{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 14px;margin:14px 0;font-size:16px;line-height:1.5;font-weight:600}
.pt-overview .pt-heat-key{grid-column:1/-1;color:var(--pt-ink)}
.pt-overview .pt-principle-realistic figcaption{font-size:16px;line-height:1.5;color:var(--pt-muted)}
@media(max-width:900px){.pt-overview .pt-component-visual{grid-template-columns:1fr;gap:22px}.pt-overview .pt-component-labels{grid-template-columns:repeat(2,minmax(0,1fr));gap:25px}}
@media(max-width:700px){.pt-overview .pt-chapter-head{padding:14px;gap:10px}.pt-overview .pt-chapter-head p{font-size:18px}.pt-overview .pt-comparison tbody th{width:100%!important;text-align:left;display:block}.pt-overview .pt-comparison tbody th a{justify-content:flex-start;font-size:19px}.pt-overview .pt-component-visual{padding:15px;gap:20px}.pt-overview .pt-component-labels{grid-template-columns:1fr;gap:22px}.pt-overview .pt-component-labels strong{font-size:20px}.pt-overview .pt-toc-group a{display:flex;align-items:center;min-height:44px}}
@media(max-width:360px){.pt-overview .pt-principle-key{grid-template-columns:1fr}.pt-overview .pt-comparison tbody th a{font-size:17px}.pt-overview .pt-chapter-head{gap:8px;padding:12px 10px}.pt-overview .pt-chapter-head p{font-size:17px}.pt-overview .pt-chapter-head .pt-group-icon{width:32px;height:32px;flex-basis:32px}}
@media print{.pt-overview .pt-component-visual{break-inside:avoid}.pt-overview .pt-joining-section{max-width:160px}}
.pt-overview .pt-service-visual{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(0,1fr);gap:20px 28px;align-items:center;margin:26px 0;padding:22px;border:1px solid var(--pt-line);border-radius:16px;background:var(--pt-paper)}
.pt-overview .pt-service-title{grid-column:1/-1;margin:0;font-size:20px;font-weight:600;line-height:1.4}
.pt-overview .pt-service-visual>img{display:block;width:100%;height:auto;min-width:0;border-radius:9px;background:#fbfcfb}
.pt-overview .pt-service-visual figcaption{min-width:0}
.pt-overview .pt-service-labels{display:grid;gap:16px;margin:0}
.pt-overview .pt-service-labels dt,.pt-overview .pt-service-labels dd{margin:0;font-size:16px;line-height:1.5}
.pt-overview .pt-service-labels dt a{display:inline-flex;align-items:center;min-height:44px;font-size:18px;font-weight:600}
.pt-overview .pt-service-visual .pt-visual-note{margin-top:20px;padding-top:16px;border-top:1px solid var(--pt-line)}
.pt-overview .pt-service-steps{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 28px;list-style:none;padding:0;margin:24px 0;counter-reset:phe-service}
.pt-overview .pt-service-steps>li{counter-increment:phe-service;display:flex;align-items:flex-start;gap:12px;padding:20px 0;border-top:1px solid var(--pt-line);scroll-margin-top:calc(var(--header-height,72px) + 18px)}
.pt-overview .pt-service-step-icon{display:flex;align-items:center;justify-content:center;flex:0 0 36px;width:36px;height:36px;color:var(--pt-accent);font-size:28px;font-variation-settings:'FILL' 0,'wght' 200,'GRAD' 0,'opsz' 24}
.pt-overview .pt-service-steps h3{font-size:19px;line-height:1.4;margin:0 0 8px}
.pt-overview .pt-service-steps h3::before{content:counter(phe-service) '. ';color:var(--pt-accent)}
.pt-overview .pt-service-steps p{font-size:16px;line-height:1.6;margin:0}
.pt-overview .pt-guidance-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;margin:24px 0}
.pt-overview .pt-guidance-grid>article{display:flex;align-items:flex-start;gap:12px;min-width:0;padding:18px 0 0;border-top:1px solid var(--pt-line);scroll-margin-top:calc(var(--header-height,72px) + 18px)}
.pt-overview .pt-guidance-grid>article>div{min-width:0}
.pt-overview .pt-guidance-icon{display:flex;align-items:center;justify-content:center;flex:0 0 36px;width:36px;height:36px;color:var(--pt-accent);font-size:28px;font-variation-settings:'FILL' 0,'wght' 200,'GRAD' 0,'opsz' 24}
.pt-overview .pt-guidance-grid h3{font-size:19px;line-height:1.4;min-height:2.8em;margin:0 0 8px}
.pt-overview .pt-guidance-grid p{font-size:16px;line-height:1.6;margin:0}
.pt-overview #calculation .pt-guidance-grid{grid-template-columns:1fr;gap:22px}
.pt-overview #calculation .pt-guidance-grid h3{min-height:0}
.pt-overview #maintenance .pt-guidance-grid{grid-template-columns:1fr;gap:22px}
.pt-overview #maintenance .pt-guidance-grid h3{min-height:0}
@media(max-width:1000px){.pt-overview .pt-guidance-grid{grid-template-columns:1fr;gap:22px}.pt-overview .pt-guidance-grid h3{min-height:0}}
@media(max-width:600px){.pt-overview .pt-guidance-grid>article{scroll-margin-top:calc(var(--header-height,112px) + 18px)}}
@media(max-width:900px){.pt-overview .pt-service-visual{grid-template-columns:1fr}.pt-overview .pt-service-labels{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 24px}}
@media(max-width:700px){.pt-overview .pt-service-visual{padding:15px;gap:18px}.pt-overview .pt-service-labels,.pt-overview .pt-service-steps{grid-template-columns:1fr}.pt-overview .pt-service-steps>li{scroll-margin-top:calc(var(--header-height,112px) + 18px)}}
/* Overview anchor offsets follow the shared measured header height. */
@media(max-width:600px){
  .pt-overview .pt-section,.pt-overview .pt-chapter,.pt-overview .pt-editorial article{scroll-margin-top:calc(var(--header-height,112px) + 18px)}
  .pt-overview .pt-anchor{top:calc(-1 * (var(--header-height,112px) + 18px))}
}
.pt-overview .pt-component-term{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}