:root{
  --ink:#16302B; --bg:#FBFAF6; --surface:#FFFFFF;
  --primary:#0E7A66; --primary-dark:#0A5A4B;
  --mint:#E7F2EE; --mint-2:#F1F7F4;
  --accent:#E07A3E; --line:#DCE6E1; --muted:#5F726B;
  --maxw:1140px; --radius:16px;
  --serif:"Noto Serif JP",serif; --sans:"Noto Sans JP",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);
  font-weight:400;line-height:1.85;-webkit-font-smoothing:antialiased;
  font-feature-settings:"palt";}
a{color:var(--primary-dark);text-decoration:none}
a:hover{text-decoration:underline}
img,svg{max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* illustrations */
.il-stroke{fill:none;stroke:var(--primary);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.il-fill{fill:var(--mint)}
.il-accent{fill:var(--accent)}
.il-soft{fill:none;stroke:var(--primary);stroke-width:2;opacity:.45;stroke-linecap:round}
.tile{background:var(--mint-2);border-radius:var(--radius);display:grid;place-items:center;
  aspect-ratio:16/10;overflow:hidden}
.tile svg{width:58%;height:auto}
.tile img{width:100%;height:100%;object-fit:cover;display:block}

/* header */
.site-header{position:sticky;top:0;z-index:40;background:rgba(251,250,246,.9);
  backdrop-filter:saturate(150%) blur(8px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;gap:26px;height:68px}
.brand{display:flex;align-items:baseline;gap:10px;flex-shrink:0;white-space:nowrap;
  font-family:var(--serif);font-weight:700;font-size:1.42rem;line-height:1.1;
  color:var(--ink);letter-spacing:.02em}
.brand:hover{text-decoration:none}
.brand .dot{color:var(--primary)}
.brand small{font-family:var(--sans);font-weight:500;font-size:.62rem;letter-spacing:.22em;
  color:var(--muted)}
.nav{margin-left:auto;display:flex;gap:20px;flex-wrap:wrap}
.nav a{color:var(--muted);font-size:.86rem;font-weight:500}
.nav a:hover{color:var(--primary-dark);text-decoration:none}

/* hero */
.hero{padding:54px 0 30px}
.hero-eyebrow{font-size:.74rem;letter-spacing:.26em;color:var(--primary);font-weight:700;
  text-transform:uppercase}
.hero h1{font-family:var(--serif);font-weight:700;font-size:clamp(1.9rem,4.4vw,3rem);
  line-height:1.35;margin:.5rem 0 .4rem;letter-spacing:.01em}
.hero p.lead{color:var(--muted);max-width:640px;margin:0;font-size:1.02rem}

/* featured */
.featured{display:grid;grid-template-columns:1.25fr 1fr;gap:24px;margin:34px 0 8px}
.feat-main,.feat-side{background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;transition:transform .18s,box-shadow .18s}
.feat-main:hover,.feat-side:hover{transform:translateY(-3px);
  box-shadow:0 14px 36px -22px rgba(14,122,102,.5)}
.feat-main .tile{aspect-ratio:16/8;border-radius:0}
.feat-side .tile{aspect-ratio:16/7;border-radius:0}
.feat-body{padding:22px 24px 26px}
.feat-side .feat-body{padding:18px 20px 22px}
.eyebrow{font-size:.72rem;letter-spacing:.16em;color:var(--primary);font-weight:700}
.feat-main h2{font-family:var(--serif);font-size:1.5rem;line-height:1.5;margin:.5rem 0 .5rem}
.feat-side h3{font-family:var(--serif);font-size:1.12rem;line-height:1.55;margin:.4rem 0}
.feat-main p{color:var(--muted);margin:0;font-size:.95rem}
.card-meta{display:flex;gap:14px;color:var(--muted);font-size:.78rem;margin-top:14px}

/* section heading */
.sec-head{display:flex;align-items:baseline;gap:14px;margin:54px 0 22px}
.sec-head h2{font-family:var(--serif);font-size:1.5rem;margin:0}
.sec-head .rule{flex:1;height:1px;background:var(--line)}
.sec-head .count{color:var(--muted);font-size:.8rem}

/* grid */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;transition:transform .18s,box-shadow .18s}
.card:hover{transform:translateY(-3px);box-shadow:0 14px 34px -24px rgba(14,122,102,.5);
  text-decoration:none}
.card .tile{border-radius:0}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-family:var(--serif);font-size:1.06rem;line-height:1.55;margin:.45rem 0 .4rem;
  color:var(--ink)}
.card-body p{color:var(--muted);font-size:.86rem;margin:0 0 14px;flex:1}
.tag{display:inline-block;background:var(--mint);color:var(--primary-dark);font-size:.7rem;
  font-weight:700;padding:3px 10px;border-radius:999px;letter-spacing:.04em}

/* breadcrumb */
.crumb{font-size:.8rem;color:var(--muted);padding:18px 0 0}
.crumb a{color:var(--muted)}

/* article */
.article{max-width:760px;margin:0 auto;padding:8px 22px 10px}
.art-head{margin:18px 0 26px}
.art-head h1{font-family:var(--serif);font-weight:700;font-size:clamp(1.6rem,3.6vw,2.3rem);
  line-height:1.5;margin:.6rem 0 .8rem;letter-spacing:.01em}
.art-meta{display:flex;flex-wrap:wrap;gap:8px 18px;color:var(--muted);font-size:.82rem;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:12px 0}
.art-meta b{color:var(--ink);font-weight:500}
.art-hero{margin:24px 0}
.art-hero .tile{aspect-ratio:16/7}
.lead{font-size:1.06rem;color:#26443D;background:var(--mint-2);border-left:4px solid var(--primary);
  padding:18px 20px;border-radius:0 12px 12px 0;margin:24px 0}

/* TOC */
.toc{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px 24px;
  margin:28px 0}
.toc p.toc-t{font-weight:700;margin:0 0 10px;font-size:.92rem;color:var(--primary-dark)}
.toc ol{margin:0;padding-left:1.2em;color:var(--muted)}
.toc li{margin:6px 0}
.toc a{color:var(--ink)}

/* body typography */
.body h2{font-family:var(--serif);font-size:1.4rem;margin:46px 0 14px;padding-bottom:8px;
  border-bottom:2px solid var(--mint);scroll-margin-top:84px}
.body h3{font-family:var(--serif);font-size:1.12rem;margin:30px 0 10px}
.body p{margin:0 0 16px}
.body b{color:var(--primary-dark)}
.point-list{margin:0 0 18px;padding-left:0;list-style:none}
.point-list li{position:relative;padding:8px 0 8px 30px;border-bottom:1px dashed var(--line)}
.point-list li:before{content:"";position:absolute;left:6px;top:16px;width:9px;height:9px;
  border-radius:3px;background:var(--primary)}
ol.point-list{counter-reset:pl}
ol.point-list li:before{counter-increment:pl;content:counter(pl);background:var(--primary);
  color:#fff;width:20px;height:20px;border-radius:50%;font-size:.72rem;display:grid;
  place-items:center;left:0;top:9px;line-height:1}
ol.point-list li{padding-left:34px}

.callout{border-radius:12px;padding:16px 18px;margin:8px 0 20px;font-size:.95rem}
.callout.info{background:var(--mint-2);border:1px solid var(--mint)}
.callout.warn{background:#FCF3EC;border:1px solid #F3DBC8}
.callout-title{font-weight:700;margin:0 0 6px;color:var(--primary-dark)}
.callout.warn .callout-title{color:#C25A22}
.callout p{margin:0}

/* FAQ */
.faq{margin:40px 0}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:12px;
  padding:0 18px;margin:10px 0}
.faq summary{cursor:pointer;font-weight:700;padding:16px 0;list-style:none;position:relative;
  padding-right:30px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:before{content:"Q";color:var(--primary);font-family:var(--serif);
  margin-right:10px;font-weight:700}
.faq summary:after{content:"+";position:absolute;right:4px;top:14px;color:var(--muted);
  font-size:1.3rem}
.faq details[open] summary:after{content:"–"}
.faq .ans{padding:0 0 18px;color:var(--muted)}

/* disclaimer + supervisor */
.note-box{display:flex;gap:14px;background:var(--mint-2);border-radius:12px;padding:16px 18px;
  margin:32px 0;font-size:.85rem;color:var(--muted)}
.note-box .ic{flex:0 0 38px;height:38px;border-radius:50%;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-family:var(--serif);font-weight:700}
.disclaimer{font-size:.78rem;color:var(--muted);border:1px dashed var(--line);border-radius:10px;
  padding:14px 16px;margin:24px 0}

/* supervisor comment */
.sup-comment{background:#fff;border:1px solid var(--line);border-left:4px solid var(--accent);
  border-radius:0 14px 14px 0;padding:20px 22px;margin:36px 0 8px;position:relative}
.sup-head{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.sup-badge{background:var(--accent);color:#fff;font-size:.7rem;font-weight:700;
  padding:3px 10px;border-radius:999px;letter-spacing:.04em}
.sup-head b{font-size:.92rem}
.sup-comment p{margin:0;color:#3a4d47}
.sup-comment:before{content:"\201C";position:absolute;right:18px;top:6px;font-family:var(--serif);
  font-size:3rem;color:var(--mint);line-height:1}

/* CTA */
.cta{background:var(--primary);color:#fff;border-radius:var(--radius);padding:30px 32px;
  margin:42px 0;text-align:center}
.cta h3{font-family:var(--serif);margin:0 0 6px;font-size:1.3rem}
.cta p{margin:0 0 16px;opacity:.92}
.btn{display:inline-block;background:#fff;color:var(--primary-dark);font-weight:700;
  padding:12px 26px;border-radius:999px}
.btn:hover{text-decoration:none;opacity:.92}

/* comparison table */
.cmp-wrap{overflow-x:auto;margin:22px 0;-webkit-overflow-scrolling:touch}
.cmp-table{width:100%;border-collapse:collapse;font-size:.9rem;min-width:480px}
.cmp-table th,.cmp-table td{border:1px solid var(--line);padding:11px 14px;text-align:left;
  vertical-align:top}
.cmp-table thead th{background:var(--primary);color:#fff;font-weight:700;border-color:var(--primary)}
.cmp-table tbody th{background:var(--mint-2);font-weight:700;color:var(--ink);white-space:nowrap}
.cmp-table tbody tr:nth-child(even) td{background:#FBFCFB}
.cmp-table .kr{color:var(--primary-dark);font-weight:700}
.cmp-table .jp{color:var(--muted)}
.cmp-note{font-size:.78rem;color:var(--muted);margin:-8px 0 22px}

/* PR / advertisement */
.pr-banner{display:flex;align-items:center;gap:10px;background:#FCF3EC;border:1px solid #F3DBC8;
  border-radius:10px;padding:10px 14px;margin:20px 0;font-size:.82rem;color:#7a5638}
.pr-label{display:inline-block;background:var(--accent);color:#fff;font-size:.66rem;font-weight:700;
  padding:3px 9px;border-radius:999px;letter-spacing:.06em;flex:0 0 auto}
.ad-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin:24px 0}
.ad-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 22px 20px;position:relative;display:flex;flex-direction:column}
.ad-card .pr-label{position:absolute;top:16px;right:16px}
.ad-card h3{font-family:var(--serif);font-size:1.12rem;margin:0 6px .4rem 0;padding-right:48px}
.ad-card .ad-tag{font-size:.72rem;color:var(--primary-dark);font-weight:700;
  background:var(--mint);padding:3px 10px;border-radius:999px;align-self:flex-start;margin-bottom:10px}
.ad-card p{color:var(--muted);font-size:.88rem;margin:0 0 14px;flex:1}
.ad-card .ad-meta{font-size:.8rem;color:var(--muted);border-top:1px dashed var(--line);
  padding-top:12px;line-height:1.9}
.ad-card .ad-meta b{color:var(--ink);font-weight:500}
@media(max-width:560px){.ad-grid{grid-template-columns:1fr}}

/* related */
.related{margin:46px 0}

/* footer */
.site-footer{background:var(--ink);color:#CFE0DA;margin-top:64px;padding:48px 0 30px;font-size:.86rem}
.site-footer .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}
.site-footer .brand{color:#fff}
.site-footer a{color:#CFE0DA}
.site-footer h4{color:#fff;font-size:.82rem;letter-spacing:.1em;margin:0 0 12px}
.site-footer ul{list-style:none;margin:0;padding:0;line-height:2.1}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:18px;
  color:#9FB6AF;font-size:.76rem;text-align:center}

@media(max-width:880px){
  .featured{grid-template-columns:1fr}
  .grid{grid-template-columns:repeat(2,1fr)}
  .nav{display:none}
  .site-footer .wrap{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .grid{grid-template-columns:1fr}
  .site-footer .wrap{grid-template-columns:1fr}
  .hero{padding:34px 0 20px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}

/* ===== landing page (ワンデイ hub) ===== */
.lp-hero{background:linear-gradient(160deg,var(--mint) 0%,var(--mint-2) 60%,var(--bg) 100%);
  border-bottom:1px solid var(--line)}
.lp-hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
  padding-top:46px;padding-bottom:46px}
.lp-hero .eyebrow{color:var(--accent);font-weight:700;letter-spacing:.08em;font-size:.82rem}
.lp-hero h1{font-family:var(--serif);font-size:2.3rem;line-height:1.35;margin:.5rem 0 .8rem}
.lp-hero h1 .hl{color:var(--primary-dark);border-bottom:6px solid var(--mint)}
.lp-hero .sub{color:var(--muted);font-size:1.02rem;margin:0 0 22px}
.lp-hero-media{border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;
  box-shadow:0 18px 40px -22px rgba(14,122,102,.5)}
.lp-hero-media img{width:100%;height:100%;object-fit:cover;display:block}
.lp-cta-row{display:flex;gap:12px;flex-wrap:wrap}
.btn-lg{font-size:1rem;padding:14px 26px}
.btn-line{background:#06C755;color:#fff;border:none}
.btn-line:hover{background:#05b54e;text-decoration:none}
.btn-ghost{background:transparent;border:1.5px solid var(--primary);color:var(--primary-dark)}
.btn-note{display:block;font-size:.76rem;color:var(--muted);margin-top:10px}

.lp-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:38px 0}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 18px;text-align:center}
.stat b{display:block;font-family:var(--serif);font-size:1.9rem;color:var(--primary-dark);line-height:1.2}
.stat span{font-size:.84rem;color:var(--muted)}

.fit-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:24px 0}
.fit-col{border-radius:var(--radius);padding:20px 22px;border:1px solid var(--line)}
.fit-col.ok{background:var(--mint-2)}
.fit-col.no{background:#FBF1EA}
.fit-col h3{font-family:var(--serif);font-size:1.1rem;margin:0 0 12px}
.fit-col.ok h3{color:var(--primary-dark)}
.fit-col.no h3{color:var(--accent)}
.fit-col ul{margin:0;padding-left:1.1em;line-height:1.95;color:var(--ink)}

.steps{list-style:none;counter-reset:st;margin:24px 0;padding:0}
.steps li{counter-increment:st;position:relative;padding:0 0 22px 56px;border-left:2px solid var(--line);
  margin-left:18px}
.steps li:last-child{border-left-color:transparent;padding-bottom:0}
.steps li::before{content:counter(st);position:absolute;left:-19px;top:-2px;width:36px;height:36px;
  background:var(--primary);color:#fff;border-radius:50%;display:grid;place-items:center;
  font-weight:700;font-family:var(--serif)}
.steps li b{display:block;font-size:1.02rem;margin-bottom:2px}
.steps li p{margin:0;color:var(--muted);font-size:.9rem}

.cta.cta-strong{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;border:none}
.cta.cta-strong h3{color:#fff}
.cta.cta-strong p{color:rgba(255,255,255,.9)}

@media(max-width:880px){
  .lp-hero .wrap{grid-template-columns:1fr;gap:24px}
  .lp-hero-media{order:-1}
  .lp-hero h1{font-size:1.9rem}
}
@media(max-width:560px){
  .lp-stats{grid-template-columns:1fr}
  .fit-grid{grid-template-columns:1fr}
}

/* ===== 広告（PR）バナー：ads.js が描画 ===== */
.ad-band{margin:34px 0;padding:16px 16px 18px;border:1px solid var(--line);
  border-radius:var(--radius);background:linear-gradient(180deg,#fff 0%,var(--mint-2) 100%)}
.adb-head{display:flex;align-items:baseline;gap:10px;margin-bottom:13px;flex-wrap:wrap}
.adb-label{flex:none;font-size:.7rem;font-weight:700;letter-spacing:.04em;color:#fff;
  background:var(--accent);padding:3px 9px;border-radius:999px;line-height:1.4}
.adb-note{font-size:.74rem;color:var(--muted);line-height:1.5;flex:1;min-width:180px}
.adb-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}
.adb-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:13px;overflow:hidden;text-decoration:none;color:inherit;
  transition:box-shadow .2s ease,transform .2s ease}
a.adb-card:hover{box-shadow:0 10px 26px rgba(16,48,43,.12);transform:translateY(-2px)}
.adb-thumb{display:block;aspect-ratio:3/2;overflow:hidden;background:var(--mint)}
.adb-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.adb-body{padding:12px 14px 0;flex:1;display:flex;flex-direction:column;gap:6px}
.adb-tag{align-self:flex-start;font-size:.7rem;font-weight:700;color:var(--primary-dark);
  background:var(--mint);padding:3px 9px;border-radius:999px}
.adb-name{font-family:var(--serif);font-size:1.02rem;color:var(--ink);font-weight:600}
.adb-tentative{font-size:.7rem;color:var(--muted);font-weight:400}
.adb-desc{font-size:.84rem;color:var(--muted);line-height:1.55}
.adb-area{font-size:.76rem;color:var(--muted);margin-top:auto;padding-top:4px}
.adb-cta{display:block;margin-top:12px;text-align:center;padding:10px;
  font-size:.86rem;font-weight:700;color:#fff;background:var(--primary)}
a.adb-card:hover .adb-cta{background:var(--primary-dark)}
.adb-card--soon{cursor:default}
.adb-cta--soon{background:var(--mint);color:var(--muted)}
@media(max-width:760px){
  .adb-grid{grid-template-columns:1fr}
  .adb-thumb{aspect-ratio:16/9}
}

/* ===== 2カラム＋右サイド縦レール（ホーム・記事共通／ads.js が描画）===== */
/* グリッド列をストレッチさせ、aside を全高にすることで .ad-rail の sticky を有効化 */
.home-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:34px}
.home-main{min-width:0}
/* 記事ページ：本文を2カラム化（左本文＝約760px／右レール300px） */
.article-layout{max-width:var(--maxw);margin:0 auto;padding:0 22px;
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:36px}
.article-layout>.article{max-width:none;margin:0;padding:8px 0 10px;min-width:0}
.article-rail{min-width:0}
.ad-rail{position:sticky;top:84px;padding:14px 14px 16px;border:1px solid var(--line);
  border-radius:var(--radius);background:linear-gradient(180deg,#fff 0%,var(--mint-2) 100%)}
.adr-head{display:flex;align-items:baseline;gap:8px;margin-bottom:12px;flex-wrap:wrap}
.adr-list{display:flex;flex-direction:column;gap:13px}
.adr-list .adb-card{flex-direction:column}
.adr-list .adb-thumb{aspect-ratio:16/9}
.adr-list .adb-cta{margin-top:10px;padding:9px}
.adr-recruit{display:flex;flex-direction:column;gap:4px;padding:13px 14px;text-decoration:none;
  border:1px dashed var(--line);border-radius:13px;background:var(--mint-2);color:var(--ink);
  transition:border-color .2s ease,background .2s ease}
.adr-recruit:hover{border-color:var(--primary);background:var(--mint)}
.adr-recruit b{font-family:var(--serif);font-size:.96rem;color:var(--primary-dark)}
.adr-recruit span{font-size:.78rem;color:var(--muted);line-height:1.5}
@media(max-width:980px){
  .home-layout,.article-layout{grid-template-columns:1fr}
  .article-layout{max-width:760px}
  .ad-rail{position:static;top:auto}
  .adr-list{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}
  .adr-recruit{justify-content:center}
}
@media(max-width:760px){
  .adr-list{grid-template-columns:1fr}
}

/* ===== LINE相談ボタン（ads.js が描画）===== */
.adb-line{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:12px;
  padding:11px 12px;border-radius:10px;font-size:.9rem;font-weight:700;color:#fff;
  background:#06C755;text-decoration:none;transition:background .2s ease}
a.adb-line:hover{background:#05b14c}
.adb-line-ic{background:#fff;color:#06C755;font-weight:800;font-size:.64rem;
  padding:2px 7px;border-radius:6px;letter-spacing:.02em;line-height:1.5}
.adb-line--soon{background:#06C755;color:#fff;cursor:default;opacity:.92}

/* ===== ワンデイ歯科 入稿バナー：レール用の大型カード ===== */
.adb-banner{cursor:default}
.adb-banner-img{display:block;aspect-ratio:3/2;overflow:hidden;background:var(--mint)}
.adb-banner-img img{width:100%;height:100%;object-fit:cover;display:block}
.adb-banner .adb-line{margin:0;border-radius:0}

/* ===== 全幅の特集バナー（本文・ホーム上部／広告PR）===== */
.oneday-feature{margin:0 0 30px;padding:16px 16px 18px;border:1px solid var(--line);
  border-radius:var(--radius);background:linear-gradient(180deg,#fff 0%,var(--mint-2) 100%)}
.adf-head{display:flex;align-items:baseline;gap:10px;margin-bottom:13px;flex-wrap:wrap}
.adf-link{display:block}
.adf-link img{width:100%;height:auto;display:block;border-radius:12px}
.oneday-feature .adb-line{max-width:420px;margin-left:auto;margin-right:auto}