/* 子どもの、矯正と脱毛。 — 明るい配色・丸い形（2026-11-03） */
:root{--bg:#fffdf8;--white:#fff;--text:#2b2f3a;--muted:#59616f;--line:#f1e5d9;
--coral:#d9443b;--coral-soft:#ffe9e5;--sky:#1a76a6;--sky-soft:#e6f4fb;--sun:#ffd24a;--sun-soft:#fff6d3;--mint:#1f8a69;--mint-soft:#e3f6ee;
--accent:var(--coral);--accent-soft:var(--coral-soft);--body:1.0625rem;--r:24px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:2rem}
body{margin:0;background:var(--bg);color:var(--text);font:var(--body)/1.95 "Hiragino Maru Gothic ProN","BIZ UDPGothic","Yu Gothic UI","Yu Gothic",Meiryo,sans-serif}
a{color:var(--sky);text-underline-offset:4px}
a:hover{color:var(--coral)}
a:focus-visible,summary:focus-visible{outline:3px solid var(--sun);outline-offset:3px;border-radius:8px}
.skip{position:absolute;top:-100px}.skip:focus{top:0;background:#fff;z-index:5;padding:8px 14px}
h1,h2,h3,p{margin-top:0}
h1,h2,h3{font-weight:800;line-height:1.55;letter-spacing:.02em}
h1{font-size:clamp(2rem,4.6vw,3.4rem)}
h2{font-size:1.7rem}
h3{font-size:1.2rem}

/* ヘッダー */
header{max-width:1120px;margin:14px auto 0;padding:14px 22px 14px 26px;background:var(--white);border:3px solid var(--sun);border-radius:999px;display:flex;align-items:center;justify-content:space-between;gap:20px;position:relative}
.brand{text-decoration:none;color:var(--text);font-size:1.3rem;font-weight:800;line-height:1.35}
.brand small{display:block;font-size:.7rem;font-weight:500;color:var(--muted);letter-spacing:.04em}
.brand:hover{color:var(--coral)}
nav{display:flex;gap:8px;font-size:.9rem}
nav a{text-decoration:none;color:var(--text);padding:8px 16px;border-radius:999px;font-weight:700}
nav a:hover{background:var(--sun-soft);color:var(--coral)}
.mobile-nav{display:none}
.wrap{max-width:1040px;margin:auto;padding:0 28px}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:800;letter-spacing:.08em;color:var(--accent);background:var(--accent-soft);padding:4px 14px;border-radius:999px;margin-bottom:18px}

/* ボタン */
.button{display:inline-block;background:var(--coral);color:#fff;padding:14px 28px;border-radius:999px;text-decoration:none;font-weight:800;font-size:.95rem;margin-top:12px;box-shadow:0 4px 0 #a8322b}
.button:hover{background:#c23a31;color:#fff;transform:translateY(1px);box-shadow:0 3px 0 #a8322b}
.button .arrow{margin-left:14px}

/* トップ */
.home-intro{position:relative;margin:34px 0 44px;padding:58px 48px;background:linear-gradient(135deg,var(--sky-soft) 0%,var(--sun-soft) 55%,var(--coral-soft) 100%);border-radius:40px;overflow:hidden}
.home-intro:before{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:var(--sun);opacity:.55}
.home-intro:after{content:"";position:absolute;right:90px;bottom:-70px;width:150px;height:150px;border-radius:50%;background:#fff;opacity:.7}
.home-intro>*{position:relative;z-index:1}
.home-intro h1{margin-bottom:22px;font-size:clamp(2.3rem,5.4vw,4rem)}
.home-intro .hero-copy{max-width:640px;font-size:1.05rem;margin-bottom:0}
.hero-copy{font-size:1rem}
.top-banner{display:block;width:100%;height:auto;border-radius:var(--r);margin:6px 0 30px}
.section{margin:0 0 56px}
.section-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:22px}
.section-heading h2{margin:0;display:inline-block;background:linear-gradient(transparent 62%,var(--sun) 62%);padding:0 6px}
.section-heading span{font-size:.8rem;font-weight:800;color:var(--sky);background:var(--sky-soft);padding:4px 14px;border-radius:999px}
.rows{display:grid;gap:14px}
.rows a{display:flex;gap:18px;align-items:center;padding:20px 26px;background:var(--white);border:3px solid var(--line);border-radius:var(--r);text-decoration:none;color:var(--text)}
.rows a:hover{border-color:var(--sun);transform:translateY(-2px);box-shadow:0 6px 0 var(--sun-soft)}
.rows span{flex:none;font-size:.75rem;font-weight:800;color:var(--coral);background:var(--coral-soft);padding:3px 14px;border-radius:999px;white-space:nowrap}
.rows h3{flex:1;margin:0;font-size:1.1rem}
.two{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.two>div{background:var(--sky-soft);border-radius:32px;padding:30px}
.two>div>h2{font-size:1.3rem;margin-bottom:16px}
.about-box{display:grid;grid-template-columns:1fr 2fr;gap:36px;align-items:center;background:var(--mint-soft);border-radius:32px;padding:34px 38px}
.about-box h2{margin:0;font-size:1.4rem}
.about-box p{font-size:1rem}
.about-who h2{white-space:nowrap;font-size:clamp(1.2rem,2.3vw,1.5rem)}
.card{display:block;text-decoration:none;padding:28px;background:var(--white);border:3px solid var(--line);border-radius:var(--r)}

/* パンくず・記事 */
.crumb{display:block;font-size:.8rem;color:var(--muted);padding:26px 0 4px;overflow-wrap:anywhere}
.crumb a{color:var(--muted)}
.article{max-width:740px;margin:14px auto 70px}
.article.is-diary{--accent:var(--coral);--accent-soft:var(--coral-soft)}
.article.is-public{--accent:var(--sky);--accent-soft:var(--sky-soft)}
.article h1{font-size:clamp(1.75rem,3.6vw,2.6rem);margin-bottom:20px}
.article .lead{font-size:1.1rem;background:var(--accent-soft);padding:20px 24px;border-radius:var(--r);margin-bottom:18px}
.byline{font-size:.82rem;color:var(--muted);padding:6px 4px 18px;margin-bottom:26px}
.article h2{font-size:1.45rem;margin:54px 0 18px;padding:8px 18px;background:var(--accent-soft);border-radius:16px;border-left:8px solid var(--accent)}
.article p{margin-bottom:22px}
.article.is-diary section p{font-size:1.08rem}
.article ul,.article ol{padding-left:1.5em}
.article li{margin-bottom:10px}
.article li::marker{color:var(--accent);font-weight:800}
.notice{background:var(--sun-soft);padding:16px 22px;font-size:.92rem;margin:20px 0;border-radius:18px;border:2px dashed var(--sun)}
.toc{display:block;background:var(--white);border:3px solid var(--line);border-radius:var(--r);padding:20px 26px;margin:28px 0;font-size:.95rem}
.toc strong{display:block;margin-bottom:4px}
.toc ol{margin:8px 0 0;padding-left:1.4em}
.photo{margin:26px 0}.photo img{max-width:100%;height:auto;border-radius:var(--r)}.photo figcaption{font-size:.8rem;color:var(--muted);margin-top:6px}
.related{margin-top:46px;background:var(--mint-soft);padding:26px 28px;border-radius:var(--r)}
.related h2{margin:0 0 12px;font-size:1.25rem;background:none;border:0;padding:0}
.related a{display:block;margin:10px 0;background:var(--white);padding:14px 20px;border-radius:999px;text-decoration:none;font-weight:700;color:var(--text)}
.related a:hover{color:var(--coral)}
.cta{background:var(--coral);color:#fff;border-radius:32px;padding:34px;margin-top:46px}
.cta h2{margin:0 0 10px;font-size:1.35rem;color:#fff;background:none;border:0;padding:0}
.cta p{color:#fff}
.cta .button{background:#fff;color:var(--coral);box-shadow:0 4px 0 rgba(0,0,0,.18)}

/* 表 */
.table-wrap{overflow-x:auto;margin:0 0 1.5rem;border-radius:16px;border:3px solid var(--line)}
.article table{border-collapse:collapse;width:100%;font-size:.92rem;line-height:1.75}
.article th,.article td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}
.article th{background:var(--sky-soft);font-weight:800;white-space:nowrap}

/* 広告 */
.ad{margin:32px 0;padding:0;border:0;background:none;text-align:center}.ad-label{margin:0 0 12px;font-size:.8rem;color:var(--muted);letter-spacing:.08em}.ad-text{margin:0 0 16px}.ad-banner{margin:0 0 12px}.ad-banner img{max-width:100%;height:auto}.ad-note{margin:0;font-size:.8rem;color:var(--muted)}.ad img[width="1"]{position:absolute}
.ad-top{margin:0 0 24px}.ad-top .ad-label{margin-bottom:8px}.ad-top .ad-banner{margin:0}

/* 書き手 */
.author{margin:18px 0 0}.author img{width:150px;height:auto;border-radius:50%;display:block}.author figcaption{font-size:.8rem;color:var(--muted);margin-top:6px}
.article .author{float:right;margin:0 0 14px 24px}

/* フッター */
footer{max-width:1120px;margin:60px auto 0;padding:34px 36px;background:var(--sky-soft);border-radius:40px 40px 0 0;display:flex;justify-content:space-between;gap:24px;font-size:.85rem}
footer p{margin:0}footer a{display:block;color:var(--text);padding:3px 0}
.footer-title{font-size:1.15rem;font-weight:800}
.fine{font-size:.8rem;color:var(--muted)}

@media(max-width:850px){
header{border-radius:32px;padding:14px 20px;margin:10px 14px 0}
header>nav{display:none}
.mobile-nav{display:block;font-size:.9rem}
.mobile-nav summary{cursor:pointer;font-weight:800;background:var(--sun-soft);padding:8px 18px;border-radius:999px;list-style:none}
.mobile-nav nav{position:absolute;right:14px;top:78px;background:var(--white);border:3px solid var(--sun);border-radius:24px;padding:14px;display:flex;flex-direction:column;z-index:2;max-width:calc(100vw - 40px)}
.wrap{padding:0 20px}
.home-intro{padding:40px 26px;border-radius:32px}
.two{grid-template-columns:1fr}
.about-box{grid-template-columns:1fr;gap:10px;padding:26px}
footer{padding:28px 24px}}
@media(max-width:560px){
.brand{font-size:1.02rem}.brand small{font-size:.62rem}
.rows a{flex-direction:column;align-items:flex-start;gap:8px;padding:18px 20px}
.section-heading span{display:none}
.article .author{float:none;margin:0 0 16px}
.article h2{font-size:1.28rem;padding:8px 14px}
.article .lead{padding:16px 18px;font-size:1.02rem}
.cta{padding:26px 22px}
footer{display:block}footer>div+div{margin-top:20px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.rows a,.button{transition:none;transform:none}}
@media print{header,footer,.cta,.related,.toc{display:none}body{background:#fff;color:#000}.article{max-width:none;margin:0}}
.formula{background:var(--sun-soft);border-radius:var(--r);padding:16px 22px;text-align:center;font-size:1.02rem}
.mobile-nav summary{white-space:nowrap}
.diagram{margin:26px 0;background:var(--white);border:3px solid var(--line);border-radius:var(--r);padding:14px 14px 10px}
.diagram svg{width:100%;height:auto;display:block}
.diagram text{font-family:inherit}
.diagram figcaption{font-size:.8rem;color:var(--muted);text-align:center;margin-top:6px}