/* aqua-juken.com — 信用第一。白地と藍、明朝の見出し、事実と数字。CTA だけ柿色。外部フォントなし */
:root{
  --ink:#1f2933; --ink2:#55606e; --line:#dde3ea; --mist:#f3f6f9;
  --navy:#12325b; --navy-d:#0c2442; --aqua:#2e8fc9; --aqua-l:#e7f3fa; --kaki:#d9631c; --kaki-d:#b4500f;
  --sans:"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic","YuGothic","Meiryo",sans-serif;
  --min:"Hiragino Mincho ProN","Yu Mincho","YuMincho","HGS明朝E","Noto Serif JP",serif;
  color-scheme:light;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:140px}
body{margin:0;background:#fff;color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.9;letter-spacing:.03em}
img{max-width:100%;height:auto;display:block}
a{color:var(--navy)}
:focus-visible{outline:3px solid var(--aqua);outline-offset:2px}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}

/* 上部帯・ヘッダー */
.tb{background:var(--navy);color:#cfdbea;font-size:.76rem}
.tb-in{display:flex;justify-content:space-between;gap:12px;padding-top:5px;padding-bottom:5px}
.hd{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.hd-in{display:flex;align-items:center;gap:24px;min-height:84px}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--navy);flex-shrink:0}
.logo svg{width:44px;height:44px}
.logo-t b{display:block;font-family:var(--min);font-size:1.55rem;font-weight:600;letter-spacing:.12em;line-height:1.1}
.logo-t small{display:block;font-size:.58rem;letter-spacing:.24em;color:var(--ink2);margin-top:3px}
.nw{display:inline-block}
.gnav{border-top:1px solid var(--line)}
.gnav ul{list-style:none;display:flex;justify-content:space-between;margin:0 auto;padding-top:0;padding-bottom:0}
.gnav a{display:block;padding:12px 6px;text-decoration:none;color:var(--ink);font-size:.9rem;font-weight:600;letter-spacing:.06em;border-bottom:2px solid transparent}
.gnav a:hover{border-bottom-color:var(--aqua)}
.gnav a:hover,.gnav a[aria-current]{color:var(--aqua)}
.hd-cta{display:flex;align-items:center;gap:18px;margin-left:auto}
.hd-tel{text-decoration:none;color:var(--navy);font-family:var(--min);font-size:1.5rem;font-weight:600;line-height:1.15;letter-spacing:.04em;text-align:right}
.hd-tel small{display:block;font-family:var(--sans);font-size:.62rem;font-weight:400;color:var(--ink2);letter-spacing:.04em}
.btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;font-weight:700;padding:12px 22px;border-radius:4px;letter-spacing:.06em;border:0;cursor:pointer;font-family:inherit;font-size:.95rem}
.btn-o{background:var(--kaki);color:#fff}
.btn-o:hover{background:var(--kaki-d)}
.btn-w{background:#fff;color:var(--navy)}
.btn-w:hover{background:var(--aqua-l)}
.btn-l{padding:17px 34px;font-size:1.05rem}

/* ヒーロー */
.hero{background:var(--mist)}
.hero-in{display:grid;grid-template-columns:5fr 6fr;gap:56px;align-items:center;padding-top:64px;padding-bottom:40px}
.hero-area{margin:0 0 16px;font-size:.88rem;color:var(--aqua);font-weight:700;letter-spacing:.08em}
.hero h1{margin:0 0 22px;font-family:var(--min);font-weight:600;font-size:clamp(1.55rem,3vw,2.6rem);line-height:1.5;letter-spacing:.06em;color:var(--navy)}
.hero-lead{margin:0 0 32px;color:var(--ink2);max-width:32em}
.hero-act{display:flex;align-items:center;gap:26px;flex-wrap:wrap}
.hero-tel{text-decoration:none;color:var(--navy);font-family:var(--min);font-weight:600;font-size:1.75rem;line-height:1.15;letter-spacing:.04em}
.hero-tel small{display:block;font-family:var(--sans);font-size:.72rem;font-weight:400;color:var(--ink2)}
.hero-ph{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;align-items:end}
.hero-ph img{width:100%;aspect-ratio:2/3;object-fit:cover}
.hero-ph img:nth-child(2){transform:translateY(-40px)}

/* 数字の帯 */
.facts{padding:40px 0 8px}
.facts ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);border-top:2px solid var(--navy);border-bottom:1px solid var(--line)}
.facts li{padding:22px 18px;border-left:1px solid var(--line);text-align:center}
.facts li:first-child{border-left:0}
.facts b{display:block;font-family:var(--min);font-weight:600;font-size:1.1rem;color:var(--navy);letter-spacing:.04em}
.facts em{font-style:normal;font-size:2.6rem;line-height:1;margin:0 .08em;color:var(--navy)}
.facts span{display:block;font-size:.82rem;color:var(--ink2);margin-top:4px}
.lic{margin:12px 0 0;text-align:right;font-size:.8rem;color:var(--ink2)}

/* 共通 */
.sec{padding:96px 0}
.sec-mist{background:var(--mist)}
.sec-h{margin-bottom:44px;max-width:44em}
.sec-h p{margin:12px 0 0;color:var(--ink2)}
.h2{margin:0;font-family:var(--min);font-weight:600;font-size:clamp(1.6rem,2.8vw,2.2rem);line-height:1.5;letter-spacing:.06em;color:var(--navy)}
.h2::after{content:"";display:block;width:40px;height:2px;background:var(--aqua);margin-top:16px}

/* 選ばれる理由 */
.reason{display:grid;grid-template-columns:4fr 6fr;gap:64px;align-items:start}
.reason-h p{color:var(--ink2);margin:20px 0 28px}
.reason-ph img{width:100%}
.reason-l{margin:0;border-top:1px solid var(--line)}
.reason-l div{padding:24px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:1fr;gap:6px}
.reason-l dt{font-family:var(--min);font-weight:600;font-size:1.25rem;color:var(--navy);letter-spacing:.04em}
.reason-l dd{margin:0;color:var(--ink2)}

/* メニュー */
.menu{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.menu a{display:block;text-decoration:none;color:var(--ink);background:#fff;height:100%}
.menu img{width:100%;aspect-ratio:4/3;object-fit:cover}
.menu h3{margin:0;padding:18px 22px 4px;font-family:var(--min);font-weight:600;font-size:1.25rem;color:var(--navy)}
.menu p{margin:0;padding:0 22px 22px;font-size:.9rem;color:var(--ink2);line-height:1.8}
.menu a:hover h3{color:var(--aqua)}
.menu-note{margin:32px 0 0;font-size:.88rem;color:var(--ink2)}

/* 施工事例 */
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.tabs button{font:inherit;font-size:.9rem;padding:8px 18px;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:999px;cursor:pointer}
.tabs button.on{background:var(--navy);border-color:var(--navy);color:#fff}
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.case{margin:0}
.case[hidden]{display:none}
.case-b{display:block;position:relative;padding:0;border:0;background:none;cursor:zoom-in;width:100%}
.case-b img{width:100%;aspect-ratio:4/3;object-fit:cover}
.ba{position:absolute;left:0;right:0;bottom:0;display:grid;grid-template-columns:1fr 1fr}
.ba span{background:rgba(18,50,91,.82);color:#fff;font-size:.72rem;letter-spacing:.1em;padding:3px 0;text-align:center}
.ba span:last-child{background:rgba(46,143,201,.9)}
.ba-i{grid-template-columns:1fr}
.ba-i span:last-child{background:rgba(18,50,91,.82)}
.case figcaption{font-size:.86rem;color:var(--ink2);margin-top:8px}
.lb{border:0;padding:0;max-width:min(96vw,1000px);background:transparent}
.lb::backdrop{background:rgba(12,36,66,.85)}
.lb img{width:100%;height:auto}
.lb-x{position:absolute;right:8px;top:8px;width:40px;height:40px;border-radius:50%;border:0;background:#fff;font-size:1.4rem;cursor:pointer}

/* お客様の声 */
.sec-navy{background:var(--navy);color:#fff}
.sec-navy .h2{color:#fff}
.sec-navy .sec-h p{color:#c7d4e4}
.voices{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:24px}
.voices li{background:#fff;color:var(--ink);padding:28px 30px;display:flex;flex-direction:column;justify-content:space-between}
.voices blockquote{margin:0 0 20px;font-family:var(--min);font-size:1.06rem;line-height:2;color:var(--ink)}
.who{display:flex;align-items:center;gap:14px;margin:0;border-top:1px solid var(--line);padding-top:16px}
.who img{width:52px;height:52px;border-radius:50%;object-fit:cover}
.who b{display:block;font-size:.95rem}
.who span{font-size:.82rem;color:var(--ink2)}

/* ご依頼の流れ（順番） */
.flow{list-style:none;counter-reset:s;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:0}
.flow li{counter-increment:s;padding:0 20px 0 0;position:relative}
.flow li::before{content:counter(s);display:grid;place-items:center;width:46px;height:46px;border-radius:50%;border:1px solid var(--navy);color:var(--navy);font-family:var(--min);font-size:1.25rem;font-weight:600;background:#fff;position:relative;z-index:1}
.flow li::after{content:"";position:absolute;left:46px;right:0;top:23px;height:1px;background:var(--line)}
.flow li:last-child::after{display:none}
.flow li:last-child::before{background:var(--navy);color:#fff}
.flow b{display:block;margin:16px 0 6px;font-family:var(--min);font-size:1.12rem;color:var(--navy)}
.flow p{margin:0;font-size:.88rem;color:var(--ink2);line-height:1.8}

/* 水まわり帯 */
.water{background:var(--aqua);color:#fff;padding:44px 0}
.water-in{display:flex;justify-content:space-between;align-items:center;gap:32px}
.water h2{margin:0 0 6px;font-family:var(--min);font-weight:600;font-size:1.5rem}
.water p{margin:0;max-width:46em;color:#e6f3fb}

/* 代表メッセージ */
.msg{display:grid;grid-template-columns:240px 1fr;gap:56px;align-items:start;max-width:960px}
.msg-ph img{width:100%}
.msg-ph p{margin:12px 0 0;font-family:var(--min);font-size:1.05rem;color:var(--navy)}
.msg-ph span{display:block;font-family:var(--sans);font-size:.78rem;color:var(--ink2)}
.msg .h2{margin-bottom:24px}
.msg p{color:var(--ink2)}

/* FAQ */
.faq-w{max-width:900px}
.faq details{border-bottom:1px solid var(--line);background:#fff}
.faq details:first-child{border-top:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:20px 52px 20px 56px;position:relative;font-weight:700}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"Q";position:absolute;left:20px;top:16px;font-family:var(--min);font-size:1.35rem;color:var(--aqua)}
.faq summary::after{content:"";position:absolute;right:24px;top:28px;width:10px;height:10px;border-right:2px solid var(--navy);border-bottom:2px solid var(--navy);transform:rotate(45deg);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(-135deg);top:32px}
.faq details p{margin:0;padding:0 24px 22px 56px;color:var(--ink2)}

/* 会社案内 */
.co{display:grid;grid-template-columns:7fr 4fr;gap:56px;align-items:start}
.co .h2{margin-bottom:28px}
.tbl{width:100%;border-collapse:collapse;border-top:2px solid var(--navy)}
.tbl th,.tbl td{text-align:left;vertical-align:top;padding:16px 14px;border-bottom:1px solid var(--line);font-size:.94rem}
.tbl th{width:9em;font-weight:700;color:var(--navy);background:var(--mist)}
.co-ph{padding-top:86px}
.co-ph img{width:100%}

/* CTA */
.cta{background:var(--navy-d);color:#fff;padding:64px 0}
.cta-in{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:center}
.cta h2{margin:0 0 8px;font-family:var(--min);font-weight:600;font-size:1.75rem;letter-spacing:.04em}
.cta p{margin:0;color:#c7d4e4}
.cta-b{display:flex;flex-direction:column;gap:12px;align-items:stretch}
.cta-tel{text-decoration:none;color:#fff;font-family:var(--min);font-weight:600;font-size:2.2rem;line-height:1.1;letter-spacing:.04em;text-align:center}
.cta-tel small{display:block;font-family:var(--sans);font-size:.72rem;font-weight:400;color:#c7d4e4;margin-bottom:4px}

/* 下層 */
.ph{background:var(--mist);padding:40px 0 44px;border-bottom:1px solid var(--line)}
.crumb{margin:0 0 14px;font-size:.78rem;color:var(--ink2)}
.crumb a{color:var(--ink2)}
.ph h1{margin:0;font-family:var(--min);font-weight:600;font-size:clamp(1.7rem,3vw,2.4rem);color:var(--navy);letter-spacing:.06em}
.ph .lead{margin:12px 0 0;color:var(--ink2);max-width:46em}
.art{padding-top:48px;padding-bottom:80px;max-width:920px}
.art h2{font-family:var(--min);font-weight:600;font-size:1.35rem;color:var(--navy);margin:44px 0 12px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.pp h2{font-size:1.1rem}
.w-call{background:var(--navy);color:#fff;padding:24px 28px;margin-bottom:28px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.w-call p{margin:0;font-family:var(--min);font-size:1.25rem}
.chips{list-style:none;padding:0;margin:20px 0;display:flex;flex-wrap:wrap;gap:8px}
.chips li{border:1px solid var(--line);padding:6px 14px;font-size:.92rem;background:var(--mist)}
.note{background:var(--aqua-l);padding:12px 16px}

/* フォーム */
.steps{display:flex;gap:0;margin:0 0 28px;padding:0;list-style:none;counter-reset:st}
.steps li{counter-increment:st;flex:1;text-align:center;padding:10px;font-size:.85rem;font-weight:700;color:var(--ink2);background:var(--mist);border-right:2px solid #fff}
.steps li::before{content:counter(st) ". "}
.steps li.on{background:var(--navy);color:#fff}
.form fieldset{border:0;margin:0 0 28px;padding:0}
.form legend{font-family:var(--min);font-weight:600;font-size:1.3rem;color:var(--navy);padding:0;margin-bottom:6px}
.form .f{padding:16px 0;border-bottom:1px solid var(--line)}
.form .t{display:block;font-weight:700;margin-bottom:8px}
.form .req,.form .any{display:inline-block;font-size:.68rem;padding:1px 7px;margin-left:8px;vertical-align:2px;color:#fff;background:var(--kaki);border-radius:2px}
.form .any{background:#8c97a4}
.form input[type=text],.form input[type=email],.form input[type=tel],.form textarea,.form select{font:inherit;padding:12px 14px;border:1px solid #bfc9d4;border-radius:4px;background:#fff;width:100%}
.form input:focus,.form textarea:focus{outline:2px solid var(--aqua);outline-offset:-1px;border-color:var(--aqua)}
.form .row2{display:grid;grid-template-columns:10em 1fr;gap:10px}
.form textarea{min-height:160px}
.chk{display:flex;flex-wrap:wrap;gap:8px}
.chk label{display:inline-flex;align-items:center;gap:8px;border:1px solid #bfc9d4;border-radius:4px;padding:9px 14px;cursor:pointer;background:#fff;font-size:.93rem}
.chk input{accent-color:var(--navy);margin:0}
.chk label:has(input:checked){border-color:var(--navy);background:var(--aqua-l);font-weight:700}
.form details.more{margin-top:12px;border:1px solid var(--line);padding:0 16px}
.form details.more summary{cursor:pointer;padding:14px 0;font-weight:700;color:var(--navy)}
.form .hint{margin:6px 0 0;font-size:.82rem;color:var(--ink2)}
.form .hp{position:absolute;left:-9999px}
.form .agree{margin:20px 0;text-align:center}
.form .agree label{display:inline-flex;gap:8px;align-items:center;font-weight:700}
.form .actions{text-align:center}
.form .actions .btn{min-width:300px}
.err{color:#c0392b;font-weight:700;font-size:.86rem;margin:6px 0 0}
.box-ng{border:1px solid #c0392b;color:#c0392b;padding:12px 16px;margin-bottom:18px;font-weight:700}
.box-ok{border-top:2px solid var(--navy);background:var(--mist);padding:28px}

/* フッター */
.ft{background:#fff;border-top:1px solid var(--line);font-size:.86rem;color:var(--ink2)}
.ft-in{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;padding-top:52px;padding-bottom:40px}
.ft-logo{display:flex;align-items:center;gap:12px;margin:0 0 14px;color:var(--navy)}
.ft-logo svg{width:40px;height:40px}
.ft-logo b{display:block;font-family:var(--min);font-size:1.2rem;font-weight:600}
.ft-logo small{display:block;font-size:.6rem;letter-spacing:.2em}
.ft-nav{list-style:none;margin:0;padding:0;columns:3;column-gap:20px}
.ft-nav a{color:var(--ink2);text-decoration:none;line-height:2.3}
.ft-nav a:hover{color:var(--aqua)}
.copy{margin:0;padding:16px;background:var(--navy);color:#c7d4e4;text-align:center;font-size:.74rem}
.sp-bar{display:none}

@media (max-width:1000px){.gnav{display:none}}
@media (max-width:820px){
  body{font-size:15px;padding-bottom:64px}
  .wrap{padding:0 18px}
  .tb-in span:first-child{display:none}.tb-in{justify-content:center}
  .hd{position:static}
  .hd-in{min-height:66px}
  .logo svg{width:38px;height:38px}.logo-t b{font-size:1.3rem}
  .hd-cta{display:none}
  .hero{background:var(--mist)}
  .hero-in{grid-template-columns:1fr;gap:32px;padding-top:36px;padding-bottom:36px}
  .hero-ph img:nth-child(2){transform:translateY(-16px)}
  .facts{padding-top:32px}
  .facts ul{grid-template-columns:1fr 1fr}
  .facts li:nth-child(3){border-left:0}
  .facts li:nth-child(n+3){border-top:1px solid var(--line)}
  .facts em{font-size:2rem}
  .lic{text-align:center}
  .sec{padding:64px 0}
  .reason,.co,.msg,.cta-in{grid-template-columns:1fr;gap:32px}
  .msg-ph{max-width:200px}
  .menu,.cases{grid-template-columns:1fr 1fr;gap:14px}
  .menu h3{font-size:1.05rem;padding:12px 12px 2px}.menu p{padding:0 12px 14px;font-size:.84rem}
  .voices{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr;gap:22px}
  .flow li{display:grid;grid-template-columns:46px 1fr;column-gap:16px;padding:0}
  .flow li::after{display:none}
  .flow b{margin:8px 0 2px}.flow p{grid-column:2}
  .water-in{flex-direction:column;align-items:flex-start}
  .co-ph{padding-top:0}
  .tbl th{width:6.5em;padding:12px 10px}.tbl td{padding:12px 10px}
  .ft-in{grid-template-columns:1fr;gap:24px}
  .ft-nav{columns:2}
  .form .row2{grid-template-columns:1fr}
  .form .actions .btn{min-width:0;width:100%}
  .sp-bar{display:grid;grid-template-columns:1fr 1fr;position:fixed;left:0;right:0;bottom:0;z-index:30;box-shadow:0 -2px 12px rgba(0,0,0,.12)}
  .sp-bar a{display:flex;flex-direction:column;align-items:center;justify-content:center;height:64px;text-decoration:none;font-weight:700;line-height:1.25}
  .sp-bar small{font-size:.68rem;font-weight:400}
  .sp-tel{background:var(--navy);color:#fff}
  .sp-mail{background:var(--kaki);color:#fff}
}
@media (max-width:480px){.menu,.cases{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.faq summary::after{transition:none}}