:root{--link:#1a5fb4;--link-hover:#0b3d7a;--bg:#fbf8f5;--ink:#2b2622;--muted:#6f6660;--accent:#b5546b;--accent-ink:#fff;--line:#e8dfd8;--card:#fff;--soft:#f3ece6}
@media (prefers-color-scheme: dark){:root{--link:#8ab4f8;--link-hover:#c2d7fb;--bg:#1d1a19;--ink:#efe9e4;--muted:#b4aaa3;--accent:#e08aa0;--accent-ink:#1d1a19;--line:#3a3431;--card:#262221;--soft:#2c2725}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Hiragino Sans","Noto Sans JP",system-ui,sans-serif;line-height:1.85;font-size:17px}
/* text links: blue + underline — the most recognisable "you can click this" (user feedback 2026-10-22) */
a{color:var(--link);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{color:var(--link-hover);text-decoration-thickness:2px}
a:focus-visible{outline:2px solid var(--link);outline-offset:2px;border-radius:2px}
.brand,.brand:hover{text-decoration:none}
.wrap{max-width:720px;margin:0 auto;padding:0 16px 48px}
.site-header{max-width:720px;margin:0 auto;padding:20px 16px 8px}
.brand{font-weight:700;text-decoration:none;color:var(--ink);font-size:18px;display:inline-block;vertical-align:middle}
.brand img{display:block;height:32px;width:auto}
.site-header{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tagline{margin:4px 0 0;color:var(--muted);font-size:13px}
.site-footer{max-width:720px;margin:0 auto;padding:24px 16px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}
.small{font-size:13px;color:var(--muted)}
h1{font-size:24px;line-height:1.5;margin:16px 0}
h2{font-size:20px;line-height:1.5;margin:64px 0 20px;padding-bottom:8px;border-bottom:2px solid var(--line)}
.article p{margin:0 0 1.2em}
h3{font-size:17px;margin:32px 0 10px}
.empathy{background:var(--soft);padding:14px 16px;border-radius:10px}
.quick-answer{background:var(--card);border:2px solid var(--accent);border-radius:12px;padding:4px 18px 10px;margin:24px 0}
.quick-answer h2{border:none;margin-top:14px;color:var(--accent)}
.table-scroll{overflow-x:auto}
table.situation{border-collapse:collapse;width:100%;min-width:560px;font-size:15px;background:var(--card)}
table.situation th,table.situation td{border:1px solid var(--line);padding:8px;vertical-align:top}
table.situation th{background:var(--soft);text-align:left}
.possibility{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:4px 16px 8px;margin:12px 0}
.signs-label{font-size:13px;color:var(--muted);margin:6px 0 0}
.decide{background:var(--card);border-radius:12px;padding:2px 18px 12px;border:1px solid var(--line);margin:28px 0}
ul.dont li::marker{content:"✕ ";color:var(--accent)}
.kind-case_example{background:var(--soft);border-radius:10px;padding:2px 16px 8px}
.kind-male_view{border-left:4px solid var(--line);padding-left:14px}
.kind-message_examples li{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:8px 12px;margin:8px 0;list-style:none}
.kind-message_examples ul{padding-left:0}
.inline-cta{margin:16px 0}
/* PR label: clearly visible (stealth-marketing rules) but not heading-like (user feedback 2026-10-23) */
.pr-label{font-size:14px;font-weight:400;line-height:1.6;color:var(--ink);border:1px solid var(--muted);display:inline-block;padding:2px 10px;border-radius:4px;margin:12px 0 0}
.diagnosis-box,.end-cta{background:var(--card);border:1px dashed var(--accent);border-radius:12px;padding:12px 16px;margin:28px 0}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:var(--accent-ink);padding:12px 22px;border-radius:999px;text-decoration:none;font-weight:700;border:none;font-size:16px;cursor:pointer;
  box-shadow:0 3px 0 rgba(0,0,0,.18);transition:background .15s,transform .15s,box-shadow .15s}
.btn::after{content:"→";font-size:18px;line-height:1;transition:transform .15s}  /* an arrow says "this goes somewhere" */
.btn:hover{color:var(--accent-ink);text-decoration:none;filter:brightness(.9);transform:translateY(-1px);box-shadow:0 5px 10px rgba(0,0,0,.18)}
.btn:hover::after{transform:translateX(3px)}
.btn:active{transform:translateY(1px);box-shadow:0 1px 0 rgba(0,0,0,.18)}
.btn:focus-visible{outline:3px solid var(--link);outline-offset:3px}
details{border-bottom:1px solid var(--line);padding:8px 0}
summary{cursor:pointer;font-weight:600}
nav.next-read,nav.related,nav.cross{background:var(--card);border-radius:10px;padding:8px 16px;margin:20px 0;border:1px solid var(--line)}
.nav-label{font-weight:700;margin:4px 0}
.article-list li{margin:6px 0}
.status{font-size:11px;background:var(--soft);padding:1px 6px;border-radius:4px}
.hub{text-align:center;padding-top:16px}
.hub-choices{display:grid;gap:12px;margin:24px 0}
.hub-choice{display:block;background:var(--card);border:2px solid var(--line);border-radius:14px;padding:18px;text-decoration:none;color:var(--ink)}
.hub-choice:hover{border-color:var(--accent)}
.hub-label{display:block;font-size:19px;font-weight:700}
.hub-theme{display:block;font-size:13px;color:var(--muted)}
fieldset{border:1px solid var(--line);border-radius:10px;margin:14px 0;padding:8px 14px;background:var(--card)}
legend{font-weight:700;padding:0 6px}
.opt{display:block;padding:6px 0}
#diag-result{background:var(--card);border:2px solid var(--accent);border-radius:12px;padding:4px 16px 12px;margin-top:20px}
.preview-bar{background:#333;color:#fff;font-size:12px;text-align:center;padding:4px}
.qa-box{font-size:12px;background:#fff7d6;color:#5a4a00;padding:6px 10px;border-radius:6px;margin-top:12px}
.disabled-badge{font-size:11px;background:#999;color:#fff;border-radius:4px;padding:0 4px;margin-left:4px}
.legal-links{font-size:13px;margin-bottom:8px}
.site-header .section{color:var(--muted);text-decoration:none;font-size:15px}
.eyecatch,.figure{display:block;width:100%;height:auto;border-radius:12px;margin:16px 0}
.cover{margin:16px 0}.cover .eyecatch{margin:0}.cover figcaption{text-align:right;margin-top:4px}.cover .credit{font-size:11px;color:#8a817b}
.photo{margin:28px 0}.photo img{display:block;width:100%;height:auto;max-height:420px;object-fit:cover;border-radius:12px}
.photo figcaption{display:flex;justify-content:space-between;gap:12px;align-items:baseline;margin-top:6px}.photo .cap{font-size:14px;color:#5e5550}.photo .credit{font-size:11px;color:#8a817b;margin-left:auto;white-space:nowrap}
.reviews{margin:20px 0 24px;padding:16px 16px 6px;background:var(--soft);border-radius:12px}
.reviews-label{font-weight:700;font-size:15px;margin:0 0 10px!important}
.reviews-label::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--accent);margin-right:8px;vertical-align:middle}
blockquote.review{margin:0 0 10px;padding:12px 16px;background:var(--card);border-radius:10px;border:1px solid var(--line)}
blockquote.review p{margin:0}
blockquote.review cite{display:block;font-size:12px;color:var(--muted);font-style:normal;margin-top:4px}
.reviews-note{font-size:12px;color:var(--muted);margin:2px 0 8px!important}
@media (max-width:640px){
.eyecatch.has-sp{aspect-ratio:4/3;object-fit:cover}
.photo img{aspect-ratio:4/3;max-height:none}
.figure{border-radius:10px;margin:18px 0}
}
/* table of contents */
.toc{background:var(--card);border:1px solid var(--line);border-radius:12px;margin:24px 0;padding:4px 18px}
.toc summary{cursor:pointer;font-weight:700;padding:10px 0;list-style:none}
.toc summary::-webkit-details-marker{display:none}
.toc summary::before{content:"▼";display:inline-block;font-size:12px;margin-right:8px;color:var(--muted);transition:transform .15s}
.toc details:not([open]) summary::before{transform:rotate(-90deg)}
.toc-count{font-weight:400;font-size:14px;color:var(--muted)}
.toc ol{margin:0 0 12px;padding-left:1.6em;font-size:15px;line-height:1.6}
.toc li{margin:6px 0}
h2[id]{scroll-margin-top:16px}
html{scroll-behavior:smooth}
.toc details{border-bottom:none;padding:0}
/* editor profile (about page) */
.profile{display:flex;gap:20px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;margin:12px 0 8px}
.profile img{width:120px;height:120px;border-radius:50%;object-fit:cover;flex:0 0 120px;background:var(--soft)}
.profile p{margin:0 0 .6em}
.profile-name{font-weight:700;font-size:18px}
.profile-name span{font-weight:400;font-size:14px;color:var(--muted);margin-left:4px}
@media (max-width:520px){.profile{flex-direction:column;align-items:center;text-align:left}.profile img{width:132px;height:132px;flex-basis:auto}}