/* 王子みらい整体院 — 固定ページ用共通CSS (index はインライン<style>) */
:root{
  --ink:#17211C; --ink2:#2A362F; --accent:#1B5E43; --accent-d:#154A35; --accent-l:#6FC49E;
  --warm:#E8A13A; --paper:#F6F9F7; --white:#FFFFFF;
  --slate:#566860; --slate-l:#9FB2A8; --line:#DCE8E2; --line-d:#31413A;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Zen Kaku Gothic New",sans-serif; color:var(--ink);
  background:var(--white); line-height:1.9; font-size:16px;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
h1,h2,h3,.lead,.btn,summary{word-break:auto-phrase;text-wrap:balance}
.mono{font-family:"Space Grotesk",sans-serif}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}

/* --- signature motif: 深緑24px罫線 + mono番号 eyebrow --- */
.eyebrow{
  font-family:"Space Grotesk",sans-serif; font-weight:500; font-size:13px;
  letter-spacing:.12em; color:var(--accent); text-transform:uppercase;
  display:inline-flex; align-items:center; gap:12px; margin-bottom:22px;
}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--accent);flex:0 0 24px}
.eyebrow .no{font-weight:700;opacity:.95}

/* --- buttons --- */
.btn{
  display:inline-flex; align-items:center; gap:10px; font-weight:700;
  font-size:16px; padding:16px 30px; border-radius:999px; cursor:pointer;
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease;
  white-space:nowrap; border:none;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 24px rgba(27,94,67,.26)}
.btn-primary:hover{background:var(--accent-d);transform:translateY(-2px);box-shadow:0 12px 30px rgba(27,94,67,.34)}
.btn-warm{background:var(--warm);color:#3A2708;box-shadow:0 8px 24px rgba(232,161,58,.3)}
.btn-warm:hover{background:#d9922e;transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-lg{padding:19px 40px;font-size:17px}
.btn .arw{transition:transform .2s ease}
.btn:hover .arw{transform:translateX(4px)}

/* --- a11y --- */
a:focus-visible,button:focus-visible,summary:focus-visible,[tabindex]:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:3px solid var(--accent);outline-offset:2px;border-radius:3px;
}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--accent);color:#fff;padding:10px 16px;z-index:999}
.skip-link:focus{left:8px;top:8px}
@media (hover:none){.btn,.site-nav a,.menu-toggle{min-height:44px}}

/* --- header --- */
.site-header{
  position:sticky;top:0;z-index:40;background:rgba(255,255,255,.9);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line);
}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:11px;font-weight:900;font-size:18px;letter-spacing:-.01em;color:var(--ink)}
.brand .mark{width:32px;height:32px;flex:0 0 32px}
.nav-cluster{display:flex;align-items:center;gap:28px}
.site-nav{display:flex;gap:26px}
.site-nav a{font-size:14.5px;font-weight:500;color:var(--slate);transition:color .18s}
.site-nav a:hover{color:var(--ink)}
.header-cta{font-size:14px;padding:11px 22px}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:8px}
.menu-toggle span{width:24px;height:2px;background:var(--ink);display:block}
@media(max-width:900px){
  .site-nav,.header-cta{display:none}
  .menu-toggle{display:flex}
  .site-header.open .site-nav{
    display:flex;position:absolute;top:66px;left:0;width:100%;flex-direction:column;
    background:#fff;border-bottom:1px solid var(--line);padding:14px 24px;gap:4px;
  }
  .site-header.open .site-nav a{padding:12px 0;font-size:16px;border-bottom:1px solid var(--line)}
}

/* --- generic section --- */
.section{padding:100px 0}
.section h2{font-size:clamp(26px,3.6vw,40px);font-weight:900;line-height:1.4;letter-spacing:-.01em}
.section .lead{font-size:clamp(16px,1.5vw,18px);color:var(--slate);margin-top:20px;max-width:34em}

/* --- 症状ジグザグ (service.html でも使用) --- */
.zig{margin-top:52px;display:flex;flex-direction:column;gap:20px}
.zrow{display:grid;grid-template-columns:300px 1fr;gap:44px;align-items:center;padding:20px 0}
.zrow:nth-child(even){grid-template-columns:1fr 300px}
.zrow:nth-child(even) .zart{order:2}
.zart{position:relative;display:flex;align-items:center;justify-content:center}
.zart .cushion{position:absolute;width:240px;height:240px;border-radius:50%;background:var(--paper);border:1px solid var(--line);z-index:0}
.zart svg{position:relative;z-index:1;width:150px;height:150px;color:var(--accent)}
.ztext h3{font-size:clamp(20px,2.4vw,25px);font-weight:900;margin-bottom:12px;display:flex;align-items:baseline;gap:12px}
.ztext h3 .zn{font-family:"Space Grotesk";font-size:16px;color:var(--accent);font-weight:700}
.ztext p{color:var(--slate);font-size:16px}
.ztext .note{font-size:13px;color:var(--slate-l);margin-top:8px}
@media(max-width:760px){
  .zrow,.zrow:nth-child(even){grid-template-columns:1fr;gap:20px;justify-items:center;text-align:center}
  .zrow:nth-child(even) .zart{order:0}
  .ztext h3{justify-content:center}
  .zart .cushion{width:190px;height:190px}
  .zart svg{width:120px;height:120px}
}

/* --- 料金表 (service.html でも使用) --- */
.pricetbl{margin:36px auto 0;max-width:720px;border:1px solid var(--line);border-radius:16px;overflow:hidden}
.pricetbl table{width:100%;border-collapse:collapse;font-size:15.5px}
.pricetbl th,.pricetbl td{padding:18px 20px;text-align:left;border-bottom:1px solid var(--line)}
.pricetbl thead th{background:var(--paper);font-weight:700;color:var(--ink);font-size:14px}
.pricetbl tbody tr:last-child td{border-bottom:none}
.pricetbl .feat td{background:rgba(232,161,58,.07)}
.pricetbl .amt{font-family:"Space Grotesk";font-weight:700;font-size:19px;color:var(--accent);white-space:nowrap}
.pricetbl .amt small{font-family:"Zen Kaku Gothic New";font-size:12px;color:var(--slate);font-weight:500;text-decoration:line-through;margin-left:6px}
.price-note{max-width:720px;margin:18px auto 0;font-size:13px;color:var(--slate)}

/* --- FAQ details (共通) --- */
.faq-list{margin-top:44px;border-top:1px solid var(--line);max-width:860px;margin-left:auto;margin-right:auto}
.faq-list details{border-bottom:1px solid var(--line)}
.faq-list summary{list-style:none;cursor:pointer;padding:24px 44px 24px 0;font-weight:700;font-size:clamp(16px,1.9vw,19px);position:relative;display:flex;gap:14px}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary .q{font-family:"Space Grotesk";color:var(--accent);flex:0 0 auto}
.faq-list summary::after{content:"+";position:absolute;right:6px;top:22px;font-size:26px;color:var(--slate);font-weight:400;transition:transform .25s}
.faq-list details[open] summary::after{transform:rotate(45deg)}
.faq-list .a{padding:0 20px 26px 34px;color:var(--slate);font-size:16px}
@media(max-width:640px){.faq-list .a{padding:0 0 24px 0}}

/* --- CTA band --- */
.s-cta{background:var(--ink);color:#fff;text-align:center;padding:112px 0;position:relative;overflow:hidden}
.s-cta::before{content:"";position:absolute;inset:0;z-index:0;opacity:.5;mix-blend-mode:screen;background:radial-gradient(circle at 50% 120%,rgba(27,94,67,.55),transparent 62%)}
.s-cta .wrap{position:relative;z-index:1}
.s-cta h2{color:#fff;font-size:clamp(26px,3.8vw,42px);font-weight:900;margin-bottom:18px}
.s-cta p{color:var(--slate-l);font-size:17px;margin-bottom:36px;max-width:32em;margin-left:auto;margin-right:auto}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}

/* --- footer --- */
.site-footer{background:#0E1712;color:var(--slate-l);padding:56px 0 40px;font-size:14px}
.site-footer .wrap{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:flex-start}
.site-footer .brand{color:#fff;font-size:17px;margin-bottom:10px}
.site-footer .nap{font-size:13.5px;line-height:1.9;max-width:30em}
.site-footer nav{display:flex;gap:24px;flex-wrap:wrap}
.site-footer nav a:hover{color:#fff}
.site-footer .sample{width:100%;border-top:1px solid var(--line-d);margin-top:32px;padding-top:20px;font-size:12.5px;color:var(--slate-l);line-height:1.8}
.site-footer .copy{width:100%;margin-top:14px;font-size:12px;color:var(--slate)}

/* --- page-hero (固定ページ) --- */
.page-hero{position:relative;background:var(--ink);color:#fff;padding:96px 0 76px;text-align:center;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;z-index:0;opacity:.5;background-image:linear-gradient(rgba(111,196,158,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(111,196,158,.08) 1px,transparent 1px);background-size:56px 56px;-webkit-mask-image:radial-gradient(ellipse 80% 90% at 50% 20%,#000 40%,transparent 82%);mask-image:radial-gradient(ellipse 80% 90% at 50% 20%,#000 40%,transparent 82%)}
.page-hero .wrap{position:relative;z-index:1}
.page-hero h1{font-size:clamp(28px,4vw,44px);font-weight:900;letter-spacing:-.01em}
.page-hero .ph-sub{color:var(--slate-l);margin-top:14px;font-size:16px}
.page-hero .eyebrow{color:var(--accent-l);justify-content:center}
.page-hero .eyebrow::before{background:var(--accent-l)}

/* --- prose (privacy 等) --- */
.prose{max-width:760px;margin:0 auto;font-size:16px;color:var(--ink2)}
.prose h2{font-size:clamp(20px,2.6vw,28px);font-weight:900;margin:44px 0 14px;letter-spacing:-.01em}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:18px;font-weight:700;margin:26px 0 8px}
.prose p{margin-bottom:16px}
.prose ul{margin:0 0 16px 1.3em}
.prose li{margin-bottom:8px}
.prose .muted{color:var(--slate);font-size:14px}

/* --- NAP / access (共通) --- */
.napbox{max-width:760px;margin:0 auto;border:1px solid var(--line);border-radius:16px;overflow:hidden}
.napbox .row{display:grid;grid-template-columns:170px 1fr;gap:16px;padding:16px 22px;border-bottom:1px solid var(--line);font-size:15px}
.napbox .row:last-child{border-bottom:none}
.napbox .row .k{color:var(--slate);font-weight:700;font-size:13.5px}
.napbox a{color:var(--accent);font-weight:700}
@media(max-width:600px){.napbox .row{grid-template-columns:1fr;gap:2px}}
.mapframe{width:100%;height:340px;border:0;border-radius:16px;margin-top:28px;display:block}

/* --- contact form --- */
.hpform{max-width:620px;margin:0 auto;display:flex;flex-direction:column;gap:20px}
.hpform label{font-weight:700;font-size:14px;margin-bottom:7px;display:block}
.hpform label .req{color:var(--accent);font-size:11px;margin-left:8px;font-weight:700}
.hpform input,.hpform textarea,.hpform select{width:100%;padding:14px 16px;border:1.5px solid var(--line);border-radius:12px;font:inherit;font-size:16px;background:#fff;color:var(--ink);transition:border-color .18s}
.hpform input::placeholder,.hpform textarea::placeholder{color:var(--slate-l)}
.hpform input:focus,.hpform textarea:focus,.hpform select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(27,94,67,.12)}
.hpform textarea{min-height:150px;resize:vertical;line-height:1.7}
.hpform .submit{align-self:flex-start;margin-top:4px}
.hpform .privacy-note{font-size:13px;color:var(--slate)}
.hpform .privacy-note a{color:var(--accent);text-decoration:underline}
.hpform-msg{margin:24px auto 0;max-width:620px;padding:20px 22px;border-radius:14px;font-size:15.5px;line-height:1.7}
.hpform-msg.ok{background:#ECFDF3;color:#0A5138;border:1px solid #A7E3C6}
.hpform-msg.err{background:#FEF2F2;color:#991B1B;border:1px solid #FECACA}
.contact-alt{max-width:680px;margin:34px auto 0;padding:24px;background:var(--paper);border:1px solid var(--line);border-radius:14px;font-size:15px;color:var(--slate);text-align:center}
.contact-alt a{color:var(--accent);font-weight:700}

/* --- reveal 安全ネット --- */
.rv{opacity:0}
.j .rv{opacity:0}
html:not(.j) .rv{opacity:1}

@media(max-width:768px){
  .section{padding:72px 0}
  .page-hero{padding:76px 0 60px}
  .s-cta{padding:84px 0}
  .site-header .wrap{height:60px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1!important;transform:none!important}
}