/* HRBit columns: shared reading styles. Existing site pages are unchanged. */
:root{--navy:#1A3950;--paper:#FAF9F8;--muted:#A9B7C2;--line:rgba(250,249,248,.25)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:120px}
body{margin:0;background:var(--navy);color:var(--paper);font-family:'Noto Sans JP','Hiragino Kaku Gothic ProN','Yu Gothic',sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit}
button,input{font:inherit}
.skip-link{position:fixed;top:8px;left:24px;z-index:100;padding:12px 24px;background:var(--paper);color:var(--navy);transform:translateY(-160%);border-radius:999px}
.skip-link:focus{transform:translateY(0)}
.hr-page{overflow:clip}
.reading-progress{position:fixed;inset:0 0 auto;height:3px;background:rgba(250,249,248,.12);z-index:55;pointer-events:none}
.reading-progress>span{display:block;width:100%;height:100%;background:var(--paper);transform:scaleX(0);transform-origin:left center}
.reading-progress-label{position:fixed;top:76px;left:48px;display:flex;align-items:center;gap:8px;padding:4px 12px;border:1px solid var(--line);border-radius:999px;background:var(--navy);color:var(--muted);font-size:12px;font-weight:500;line-height:1.2;letter-spacing:.04em}
.reading-progress-value{min-width:5ch;color:var(--paper);font-family:Inter,sans-serif;font-size:14px;font-weight:600;font-variant-numeric:tabular-nums;text-align:right;letter-spacing:0}
#hr-header::before{content:'';position:fixed;top:0;left:0;right:0;height:112px;background:var(--navy);z-index:-1;pointer-events:none}
.column-shell{padding:144px 48px 0}
.column-wrap{margin-left:min(28%,max(140px,100% - 900px));max-width:760px;min-width:0}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px 16px;margin:0 0 24px;padding:0;list-style:none;font-size:12px;font-weight:500;letter-spacing:.06em;color:var(--muted)}
.breadcrumb li+li::before{content:'/';margin-right:16px;opacity:.7}
.breadcrumb a:hover{text-decoration:underline;text-underline-offset:4px}
.column-display{display:flex;align-items:center;gap:16px;margin:0;font-family:Inter,sans-serif;font-size:44px;line-height:1.1;font-weight:700;letter-spacing:-.02em}
.column-display::before{content:'';flex:none;width:12px;height:12px;background:var(--paper)}
.column-label{margin:8px 0 0;font-size:12px;font-weight:500;letter-spacing:.12em;color:var(--muted)}
.column-rule{height:1px;background:var(--line);margin:24px 0 32px}
.article-meta{display:flex;align-items:center;gap:16px;margin:0 0 16px;color:var(--muted);font-size:13px;font-weight:500;letter-spacing:.06em}
.article-category{padding:8px 16px;border:1px solid var(--line);border-radius:999px;color:var(--paper)}
.article-title{margin:0;font-size:clamp(1.75rem,2.6vw,2.25rem);font-weight:400;line-height:1.55;letter-spacing:.04em;overflow-wrap:anywhere;text-wrap:pretty}
.article-title .keep-together{white-space:nowrap}
.article-toc{margin:32px 0 48px;padding:8px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.toc-summary{display:flex;align-items:center;gap:16px;min-height:48px;padding:8px 0;cursor:pointer;list-style:none;font-size:15px;font-weight:500;letter-spacing:.08em}
.toc-summary::-webkit-details-marker{display:none}
.toc-summary::after{content:'';width:8px;height:8px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:translateY(-2px) rotate(45deg);margin-right:4px;flex:none;transition:transform .2s ease}
.article-toc[open]:not(.is-closing)>.toc-summary::after{transform:translateY(2px) rotate(225deg)}
.toc-state{margin-left:auto;font-size:12px;color:var(--muted);letter-spacing:.04em}
.toc-state-open,.article-toc[open]:not(.is-closing) .toc-state-closed{display:none}
.article-toc[open]:not(.is-closing) .toc-state-open{display:inline}
.article-toc nav{padding:8px 0 16px}
.article-toc ol{display:flex;flex-direction:column;gap:0;list-style:none;padding:0;margin:0}
.article-toc li{min-width:0;max-width:100%}
.article-toc li+li{border-top:1px solid rgba(250,249,248,.1)}
.article-toc a{display:flex;align-items:baseline;gap:16px;min-height:44px;padding:10px 8px;font-size:15px;font-weight:400;line-height:1.6;transition:background .2s}
.article-toc a:hover{background:rgba(250,249,248,.06);opacity:1}
.article-toc .toc-number{font-family:Inter,sans-serif;color:var(--muted);font-size:12px;flex:none}
.article-toc .toc-arrow{margin-left:auto;flex:none}
.article-toc a>span:nth-child(2),.article-cta>budoux-ja{min-width:0}
.article-body{font-size:18px;line-height:1.9;letter-spacing:.025em;overflow-wrap:anywhere}
.article-body .article-section{margin:0 0 64px;scroll-margin-top:16px}
.article-body h2{margin:0 0 24px;padding-top:24px;border-top:1px solid var(--line);font-size:clamp(1.5rem,2.2vw,1.875rem);font-weight:500;line-height:1.65;letter-spacing:.04em}
.article-body>.article-section:first-child>h2{border-top:0;padding-top:0}
.article-body h3{margin:40px 0 16px;font-size:20px;font-weight:500;line-height:1.7;letter-spacing:.04em;scroll-margin-top:16px}
.article-body p{margin:0 0 20px}
.article-body p:last-child{margin-bottom:0}
.article-body ul{padding-left:1.5em;margin:16px 0 24px}
.article-body li{padding-left:4px;margin:2px 0;line-height:1.8}
.article-body li::marker{color:var(--muted)}
.article-body a:not(.article-cta){text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:5px}
.article-body a:not(.article-cta):hover{text-decoration-thickness:2px}
.article-body .table-wrap{max-width:100%;margin:32px 0;overflow-x:auto;border:1px solid var(--line);border-radius:16px}
.article-body table{width:100%;border-collapse:collapse;font-size:16px;line-height:1.7;text-align:left;letter-spacing:.02em}
.article-body th,.article-body td{padding:16px 24px;border-bottom:1px solid var(--line);vertical-align:top}
.article-body thead th{background:rgba(250,249,248,.08);font-weight:500}
.article-body tbody th{font-weight:400}
.article-body tbody tr:last-child>*{border-bottom:0}
.article-body .table-compare{min-width:440px}
.article-body .table-compare td{text-align:center;font-family:Inter,'Noto Sans JP',sans-serif}
.article-body .table-compare th:not(:first-child){text-align:center}
.article-body .formula{padding:24px 32px;margin:32px 0;border-left:2px solid var(--paper);background:rgba(250,249,248,.05);font-weight:500}
.article-body .article-flow{display:flex;flex-direction:column;align-items:flex-start;padding:24px 32px;margin:32px 0;border-left:1px solid var(--line);gap:4px;font-weight:500}
.article-flow .flow-arrow{color:var(--muted);padding-left:12px}
.article-body .article-contact{border:1px solid var(--line);border-radius:24px;padding:40px;margin-top:96px}
.article-body .article-contact h2{padding-top:0;border-top:0;font-size:24px}
.article-cta{display:flex;align-items:center;justify-content:space-between;gap:24px;width:fit-content;max-width:100%;min-height:64px;margin-top:32px;padding:12px 12px 12px 28px;background:var(--paper);color:var(--navy);border-radius:999px;font-size:14px;font-weight:700;line-height:1.8;letter-spacing:.04em;transition:transform .2s}
.article-cta::after{content:'↗';display:grid;place-items:center;width:40px;height:40px;flex:none;background:var(--navy);color:var(--paper);border-radius:50%}
.article-cta:hover{transform:translateY(-2px);opacity:1}
.article-body .source-link-label{margin-top:16px;font-size:13px;font-weight:500}
.related{margin:96px 0 0}
.related-title{margin:0 0 32px;font-weight:400;font-size:24px;letter-spacing:.06em}
.column-list{margin:0;padding:0;list-style:none}
.column-card{display:grid;grid-template-columns:48px minmax(0,1fr) 40px;gap:24px;padding:40px 0;border-top:1px solid var(--line)}
.column-card:last-child{border-bottom:1px solid var(--line)}
.column-card .card-number{font-family:Inter,sans-serif;color:var(--muted);font-size:24px;line-height:1.6}
.column-card .card-category{display:block;margin-bottom:16px;color:var(--muted);font-size:13px;font-weight:500;letter-spacing:.06em}
.column-card h2,.column-card h3{margin:0;font-size:clamp(1.25rem,2vw,1.5rem);line-height:1.7;font-weight:500;letter-spacing:.04em;overflow-wrap:anywhere}
.column-card p{margin:16px 0 0;font-size:16px;line-height:1.9;color:var(--muted)}
.column-card .card-arrow{display:grid;place-items:center;width:40px;height:40px;margin-top:36px;border:1px solid var(--line);border-radius:50%;transition:transform .2s}
.column-card:hover .card-arrow{transform:translateX(4px)}
.column-back{display:inline-flex;align-items:center;gap:24px;min-height:48px;margin-top:40px;border-bottom:1px solid var(--line);font-size:14px;font-weight:500;letter-spacing:.04em}
.column-arch{position:relative;height:120px;overflow:hidden;margin-top:128px}
.column-arch>div{position:absolute;width:120%;left:-10%;top:0;height:400px;background:var(--paper);border-radius:50% 50% 0 0 / 15% 15% 0 0}
footer :focus-visible{outline-color:var(--navy)}
:focus-visible{outline:2px solid var(--paper);outline-offset:5px}
.article-cta:focus-visible{outline-color:var(--paper);outline-offset:6px}
@media(max-width:1023px){
  html{scroll-padding-top:112px}
  .reading-progress-label{top:60px;left:24px}
  .column-shell{padding:128px 24px 0}
  .column-wrap{margin-left:0;max-width:760px}
  .breadcrumb{margin-bottom:24px;font-size:12px}
  .column-rule{margin:20px 0 24px}
  .article-title{font-size:clamp(1.75rem,4vw,2.25rem)}
  .article-body .article-section{scroll-margin-top:16px}
  .article-body .article-contact{padding:32px 24px}
  .column-arch{height:72px;margin-top:96px}
  .column-arch>div{border-radius:50% 50% 0 0 / 8% 8% 0 0}
  footer>div{min-width:0}
  footer>div[style]{max-width:100%}
}
@media(max-width:639px){
  .column-shell{padding-top:120px}
  .breadcrumb{margin-bottom:20px}
  .column-display{font-size:32px;gap:12px}
  .column-display::before{width:8px;height:8px}
  .column-rule{margin:16px 0 24px}
  .article-title{font-size:26px;line-height:1.6}
  .article-body{font-size:17px;line-height:1.9;letter-spacing:.025em}
  .article-toc{margin:24px 0 32px}
  .article-toc a{font-size:15px;padding:12px 4px;gap:12px}
  .article-body h2{font-size:24px}
  .article-body h3{font-size:20px}
  .article-body th,.article-body td{padding:16px}
  .article-body .table-compare{min-width:0;table-layout:fixed;font-size:14px}
  .article-body .table-compare th,.article-body .table-compare td{padding:16px 12px}
  .article-body .table-compare th:first-child{width:50%}
  .article-body .formula,.article-body .article-flow{padding:24px}
  .article-body .article-contact{padding:32px 20px}
  .article-cta{gap:16px;padding-left:20px;font-size:13px}
  .column-card{grid-template-columns:28px minmax(0,1fr);gap:16px;padding:32px 0;position:relative}
  .column-card .card-number{font-size:20px}
  .column-card .card-arrow{display:none}
  .column-card h2,.column-card h3{font-size:20px}
  .column-card p{font-size:16px}
  .related-title{font-size:22px}
  footer>div{grid-template-columns:minmax(0,1fr)!important}
  footer>div:last-child{align-items:flex-start!important;flex-direction:column}
  footer>div:last-child>div{flex-wrap:wrap}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reading-progress{background:none}.reading-progress>span{display:none}*,*::before,*::after{transition:none!important}}
@media print{
  html,body{background:var(--paper)!important;color:var(--navy)!important}
  #hr-header,.hr-menu-toggle,.hr-menu-panel,.skip-link,.reading-progress,.article-toc,.related,.column-back,.column-arch,footer{display:none!important}
  .column-shell{padding:0}.column-wrap{margin:0;max-width:none}.article-body{font-size:11pt}
  .article-body h2,.article-body h3{break-after:avoid}.article-body table{break-inside:avoid}
  a{color:inherit!important}.article-cta{border:1px solid currentColor}
}