/* ============================================================
   合同会社イノベイション ─ サブページ共有スタイル
   トップページ(index.html)と同一トークン・同一トーンで統一
   A: 深い紺 × 白 × 銀 ／ B: チャコール × 赤 ／ C: 緑 × 琥珀
   ============================================================ */
:root{
  --maxw:1200px;
  --gutter:clamp(20px,5vw,64px);
  --radius:3px;
  --step-1:clamp(.78rem,.75rem + .2vw,.86rem);
  --serif:"Yu Mincho","YuMincho","Hiragino Mincho ProN","Hiragino Mincho Pro","Noto Serif JP","Shippori Mincho",serif;
  --sans:"Yu Gothic","YuGothic","Hiragino Kaku Gothic ProN","Hiragino Sans","Noto Sans JP","Meiryo",system-ui,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
:root[data-scheme="a"]{
  --ground:#13223a; --ground-2:#0e1a2e; --ground-3:#1d3050;
  --paper:#f4f6f8; --paper-2:#e7ebef; --paper-card:#ffffff;
  --ink:#16202c; --ink-soft:#48535f; --ink-faint:#78828d;
  --paper-ink:#eef2f6; --paper-ink-soft:#a9b6c4; --on-dark-faint:#6e7e93;
  --accent:#8ea3b8; --accent-soft:#b6c4d3;
  --cta-bg:#c8d3dd; --cta-ink:#13223a; --cta-hover:#dbe3ea;
  --line-dark:rgba(255,255,255,.14); --line-light:rgba(19,34,58,.14);
}
:root[data-scheme="b"]{
  --ground:#26282c; --ground-2:#1b1d20; --ground-3:#34373c;
  --paper:#f5f6f7; --paper-2:#e8eaec; --paper-card:#ffffff;
  --ink:#1f2226; --ink-soft:#4c5157; --ink-faint:#7b8087;
  --paper-ink:#eef0f2; --paper-ink-soft:#b0b5bb; --on-dark-faint:#797f86;
  --accent:#c25850; --accent-soft:#d9857e;
  --cta-bg:#b23a34; --cta-ink:#ffffff; --cta-hover:#c4483f;
  --line-dark:rgba(255,255,255,.13); --line-light:rgba(31,34,38,.14);
}
:root[data-scheme="c"]{
  --ground:#1c3226; --ground-2:#122117; --ground-3:#274736;
  --paper:#f2f3ee; --paper-2:#e5e7dd; --paper-card:#fbfcf8;
  --ink:#1e2822; --ink-soft:#4c574e; --ink-faint:#7a8379;
  --paper-ink:#eef1e9; --paper-ink-soft:#b3c0b2; --on-dark-faint:#7d9083;
  --accent:#cf9a3f; --accent-soft:#e0b562;
  --cta-bg:#c2892f; --cta-ink:#1b2a20; --cta-hover:#d59b3d;
  --line-dark:rgba(255,255,255,.14); --line-light:rgba(30,40,34,.15);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--paper);color:var(--ink);font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;transition:background .5s var(--ease),color .5s var(--ease)}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.4;letter-spacing:.01em;text-wrap:balance}
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.eyebrow{font-family:var(--sans);font-size:var(--step-1);font-weight:700;letter-spacing:.2em;color:var(--accent);display:inline-flex;align-items:center;gap:.6em}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--accent)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;cursor:pointer;border:none;font-family:var(--sans);font-weight:700;font-size:1rem;letter-spacing:.02em;padding:16px 28px;border-radius:var(--radius);transition:transform .2s,background .25s,box-shadow .25s;min-height:54px}
.btn .arw{transition:transform .25s var(--ease)}
.btn:hover .arw{transform:translateX(4px)}
.btn-primary{background:var(--cta-bg);color:var(--cta-ink);border:1px solid color-mix(in srgb,var(--cta-ink) 16%,transparent);box-shadow:0 10px 26px -12px color-mix(in srgb,var(--cta-bg) 70%,#000)}
.btn-primary:hover{background:var(--cta-hover);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--paper-ink);border:1px solid var(--line-dark)}
.btn-ghost:hover{border-color:var(--paper-ink);background:rgba(255,255,255,.06)}
.btn-outline{background:transparent;color:var(--ink);border:1px solid var(--line-light)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- header ---------- */
header{position:fixed;inset:0 0 auto 0;z-index:60;display:flex;align-items:center;gap:22px;padding:0 var(--gutter);height:66px;background:color-mix(in srgb,var(--ground) 90%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line-dark);color:var(--paper-ink);transition:background .5s var(--ease)}
.brand{display:flex;align-items:center;white-space:nowrap;font-family:var(--serif);font-weight:600;font-size:clamp(1rem,.9rem + .45vw,1.2rem);letter-spacing:.1em;color:var(--paper-ink)}
nav.main{margin-left:auto;display:flex;gap:24px}
nav.main a{font-size:14px;font-weight:600;letter-spacing:.05em;color:var(--paper-ink-soft);position:relative;padding:4px 0;transition:color .25s}
nav.main a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1.5px;background:var(--accent);transition:width .3s var(--ease)}
nav.main a:hover,nav.main a[aria-current="page"]{color:var(--paper-ink)}
nav.main a:hover::after,nav.main a[aria-current="page"]::after{width:100%}
.switch{display:flex;align-items:center;gap:8px;margin-left:6px}
.switch .lab{font-size:10px;letter-spacing:.14em;color:var(--on-dark-faint);font-weight:700}
.switch .dots{display:flex;gap:6px;padding:5px 8px;border:1px solid var(--line-dark);border-radius:40px}
.switch button{width:20px;height:20px;border-radius:50%;border:1.5px solid transparent;cursor:pointer;padding:0;position:relative;transition:transform .2s,border-color .2s}
.switch button:hover{transform:scale(1.12)}
.switch button[data-s="a"]{background:#13223a}
.switch button[data-s="b"]{background:#26282c}
.switch button[data-s="c"]{background:#1c3226}
.switch button .ring{position:absolute;inset:2px;border-radius:50%;border:1.5px solid}
.switch button[data-s="a"] .ring{border-color:#8ea3b8}
.switch button[data-s="b"] .ring{border-color:#c25850}
.switch button[data-s="c"] .ring{border-color:#cf9a3f}
.switch button[aria-pressed="true"]{border-color:var(--paper-ink);transform:scale(1.12)}
.menu-btn{display:none}

/* ---------- page hero (sub) ---------- */
.subhero{background:var(--ground);color:var(--paper-ink);padding-top:calc(66px + clamp(40px,6vw,72px));padding-bottom:clamp(40px,6vw,72px)}
.crumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:12.5px;color:var(--paper-ink-soft);letter-spacing:.04em;margin-bottom:22px}
.crumb a{color:var(--paper-ink-soft);border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.crumb a:hover{color:var(--paper-ink);border-color:var(--line-dark)}
.crumb .sep{color:var(--on-dark-faint)}
.crumb .cur{color:var(--paper-ink)}
.subhero .eyebrow{color:var(--accent-soft)}
.subhero .eyebrow::before{background:var(--accent-soft)}
.subhero h1{font-size:clamp(1.7rem,1.15rem + 2.6vw,2.9rem);line-height:1.42;letter-spacing:.02em;margin-top:16px;max-width:30ch}
.subhero .dek{margin-top:22px;max-width:60ch;color:var(--paper-ink-soft);font-size:1.02rem;line-height:1.95}

/* ---------- generic section ---------- */
section{position:relative}
.sec-light{background:var(--paper);color:var(--ink)}
.sec-light-2{background:var(--paper-2);color:var(--ink)}
.sec-dark{background:var(--ground);color:var(--paper-ink)}
.sec-dark-2{background:var(--ground-2);color:var(--paper-ink)}
.pad{padding-block:clamp(56px,8vw,104px)}

/* ---------- article (column) ---------- */
.article{max-width:820px}
.article-lead{border-left:2px solid var(--accent);padding-left:22px;margin-bottom:clamp(36px,5vw,54px)}
.article-lead p{font-size:1.06rem;line-height:1.95;color:var(--ink-soft)}
.article-lead p+p{margin-top:16px}
.article-lead p b{color:var(--ink)}
.art-h2{font-size:clamp(1.4rem,1.1rem + 1.4vw,2rem);margin:clamp(48px,6vw,70px) 0 6px;padding-top:clamp(30px,4vw,44px);border-top:1px solid var(--line-light);display:flex;gap:14px;align-items:baseline}
.art-h2 .num{font-size:.7em;color:var(--accent);font-family:var(--serif);letter-spacing:.05em;flex:none}
.art-note{font-size:1rem;line-height:1.95;color:var(--ink-soft);margin-top:18px}
.art-note+.art-note{margin-top:14px}
.art-note b{color:var(--ink)}
/* cards for 原因/チェック */
.card-list{display:grid;gap:16px;margin-top:26px}
.icard{background:var(--paper-card);border:1px solid var(--line-light);border-left:3px solid var(--accent);border-radius:var(--radius);padding:24px 26px}
.icard .ihd{display:flex;gap:14px;align-items:baseline;margin-bottom:10px}
.icard .ico-n{font-family:var(--serif);font-weight:600;font-size:1.05rem;color:var(--accent);flex:none;letter-spacing:.04em}
.icard .ico-t{font-family:var(--serif);font-weight:600;font-size:clamp(1.08rem,1rem + .4vw,1.28rem);color:var(--ink);line-height:1.5}
.icard p{font-size:1rem;line-height:1.9;color:var(--ink-soft)}
.icard.check{border-left-color:var(--accent-soft)}

/* ---------- article CTA / call band ---------- */
.cta-block{background:var(--ground);color:var(--paper-ink);border-radius:var(--radius);padding:clamp(30px,4vw,48px);position:relative;overflow:hidden}
.cta-block .ct-lab{font-size:11px;letter-spacing:.16em;font-weight:700;color:var(--accent-soft)}
.cta-block h2{font-size:clamp(1.4rem,1.1rem + 1.4vw,2rem);line-height:1.45;margin-top:12px}
.cta-block .ct-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.cta-block .btn-ghost{color:var(--paper-ink)}
.cta-phone{margin-top:26px;padding-top:22px;border-top:1px solid var(--line-dark);display:flex;gap:14px 20px;align-items:center;flex-wrap:wrap}
.cta-phone a{font-family:var(--serif);font-size:clamp(1.5rem,1.2rem + 1vw,2rem);font-weight:600;color:var(--paper-ink);display:inline-flex;gap:11px;align-items:center;letter-spacing:.03em}
.cta-phone a svg{width:24px;height:24px;color:var(--accent-soft)}
.cta-phone span{font-size:.9rem;color:var(--paper-ink-soft)}

/* ---------- contact page ---------- */
.contact-grid{display:grid;grid-template-columns:1fr .95fr;gap:clamp(38px,6vw,72px);align-items:start}
.contact-side .eyebrow{color:var(--accent-soft)}
.contact-side .eyebrow::before{background:var(--accent-soft)}
.contact-side .lede{margin-top:20px;color:var(--paper-ink-soft);font-size:1.04rem;line-height:1.95;max-width:44ch}
.contact-phone{margin-top:26px;border:1px solid var(--line-dark);border-radius:var(--radius);padding:22px 26px;background:var(--ground-2)}
.contact-phone .cl{font-size:12px;letter-spacing:.12em;font-weight:700;color:var(--accent-soft)}
.contact-phone a{display:inline-flex;align-items:center;gap:12px;font-family:var(--serif);font-size:clamp(1.7rem,1.3rem + 1.6vw,2.3rem);font-weight:600;color:var(--paper-ink);margin-top:8px;letter-spacing:.03em}
.contact-phone a svg{width:26px;height:26px;color:var(--accent-soft)}
.contact-phone p{margin-top:8px;font-size:.9rem;color:var(--paper-ink-soft)}
.ease-row{margin-top:24px;display:flex;gap:12px;flex-wrap:wrap}
.ease-row .chip{font-size:.9rem;font-weight:600;color:var(--paper-ink);border:1px solid var(--line-dark);border-radius:40px;padding:9px 18px;display:inline-flex;gap:9px;align-items:center}
.ease-row .chip::before{content:"✓";color:var(--accent-soft);font-weight:700}
.form-card{background:var(--paper-card);border-radius:6px;padding:clamp(26px,3vw,38px);box-shadow:0 30px 60px -30px rgba(0,0,0,.5)}
.form-card h2{color:var(--ink);font-size:1.3rem;margin-bottom:6px}
.form-card .fc-sub{color:var(--ink-faint);font-size:.86rem;margin-bottom:22px}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{margin-bottom:15px}
.field label{display:block;font-size:12.5px;font-weight:700;letter-spacing:.05em;color:var(--ink-soft);margin-bottom:7px}
.field label .req{color:var(--accent);margin-left:4px}
.field input,.field select,.field textarea{width:100%;font-family:var(--sans);font-size:16px;color:var(--ink);background:var(--paper);border:1px solid var(--line-light);border-radius:var(--radius);padding:12px 14px;transition:border-color .2s,box-shadow .2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 22%,transparent)}
.field textarea{min-height:96px;resize:vertical}
.form-card .btn-primary{width:100%;margin-top:6px}
.form-card .fine{margin-top:14px;font-size:11px;color:var(--ink-faint);line-height:1.6;text-align:center}
.form-card .fine a{border-bottom:1px solid var(--line-light)}

/* ---------- privacy page ---------- */
.privacy-wrap{max-width:860px}
.privacy-intro{font-size:1rem;color:var(--ink-soft);line-height:1.95;margin-bottom:20px}
.privacy-body{counter-reset:pv}
.pv-sec{padding:24px 0;border-top:1px solid var(--line-light)}
.pv-sec h2{font-size:1.14rem;color:var(--ink);display:flex;gap:12px;align-items:baseline}
.pv-sec h2::before{counter-increment:pv;content:counter(pv);font-family:var(--serif);color:var(--accent);font-size:.9em;flex:none}
.pv-sec p{margin-top:10px;font-size:.96rem;color:var(--ink-soft);line-height:1.95}
.pv-sec ul{margin-top:10px;padding-left:1.2em;display:grid;gap:6px}
.pv-sec li{font-size:.96rem;color:var(--ink-soft);line-height:1.9}
.pv-enact{margin-top:30px;padding-top:20px;border-top:1px solid var(--line-light);font-size:.92rem;color:var(--ink-faint);line-height:1.95}
.pv-enact .todo{color:var(--accent);font-weight:700}

/* ---------- footer ---------- */
footer{background:var(--ground-2);color:var(--paper-ink);padding-top:60px}
.foot-cta{border:1px solid var(--line-dark);border-radius:var(--radius);padding:30px 34px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;margin-bottom:48px;background:var(--ground)}
.foot-cta b{font-family:var(--serif);font-size:1.4rem}
.foot-cta span{color:var(--paper-ink-soft);font-size:.92rem;display:block;margin-top:4px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:38px;padding-bottom:44px}
.foot-brand .foot-logo{font-family:var(--serif);font-weight:600;font-size:1.3rem;letter-spacing:.08em;display:block;margin-bottom:14px}
.foot-info{margin-top:4px;display:grid;gap:6px;color:var(--paper-ink-soft);font-size:.9rem}
.foot-info a{color:var(--paper-ink-soft);border-bottom:1px solid var(--line-dark)}
.foot-info a:hover{color:var(--accent-soft)}
.foot-col h5{font-size:11px;letter-spacing:.14em;color:var(--on-dark-faint);text-transform:uppercase;margin-bottom:14px;font-weight:700}
.foot-col a{display:block;color:var(--paper-ink-soft);font-size:.92rem;padding:7px 0;transition:color .2s}
.foot-col a:hover{color:var(--accent-soft)}
.foot-bot{border-top:1px solid var(--line-dark);padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--on-dark-faint);font-size:12px}
.foot-bot a{color:var(--on-dark-faint);border-bottom:1px solid var(--line-dark)}
.foot-bot a:hover{color:var(--accent-soft)}

/* ---------- sticky mobile CTA ---------- */
.sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:55;display:none;gap:10px;padding:12px 16px calc(12px + env(safe-area-inset-bottom));background:color-mix(in srgb,var(--ground) 94%,transparent);backdrop-filter:blur(10px);border-top:1px solid var(--line-dark)}
.sticky-cta a{flex:1;min-height:50px;font-size:.98rem;padding:14px}
.sticky-cta .alt{flex:none;width:56px;border:1px solid var(--line-dark);background:transparent;color:var(--paper-ink)}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(24px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.rv.in{opacity:1;transform:none}
.rv.d1{transition-delay:.08s}.rv.d2{transition-delay:.16s}.rv.d3{transition-delay:.24s}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}.rv{opacity:1;transform:none;transition:none}}

/* ---------- responsive ---------- */
@media (max-width:900px){
  nav.main,.switch .lab{display:none}
  .menu-btn{display:grid;place-items:center;margin-left:auto;width:42px;height:42px;background:none;border:1px solid var(--line-dark);border-radius:4px;cursor:pointer}
  .menu-btn span{width:18px;height:1.5px;background:var(--paper-ink);position:relative;display:block}
  .menu-btn span::before,.menu-btn span::after{content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--paper-ink)}
  .menu-btn span::before{top:-6px}.menu-btn span::after{top:6px}
  .switch{margin-left:0}
  .contact-grid{grid-template-columns:1fr}
  .frow{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .sticky-cta{display:flex}
  body{padding-bottom:78px}
}
@media (max-width:560px){
  .foot-grid{grid-template-columns:1fr}
  .foot-cta{flex-direction:column;align-items:flex-start}
  .icard .ihd{flex-direction:column;gap:4px}
}