/* エコキュート見積 契約前チェック LP */
:root{
  --bg:#f8f9ff; --surface:#ffffff99; --text:#1f2340; --muted:#5a5f7d; --line:#e3e6f5;
  --brand:#5b6bd0; --brand-soft:#eef1ff; --accent:#0f7b6c; --warn:#a15c00; --warn-soft:#fff4e0;
  --radius:26px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:"Noto Sans JP","Hiragino Sans","Yu Gothic",sans-serif;background:var(--bg);color:var(--text);line-height:1.75;font-size:16px}
a{color:var(--brand)}
.draft-banner{background:#2b2b2b;color:#fff;font-size:13px;text-align:center;padding:6px 12px}
header.site{position:sticky;top:10px;z-index:9;max-width:1080px;margin:10px auto;background:#ffffff8c;border:1px solid #ffffffcc;border-radius:20px;box-shadow:0 8px 32px #5b6bd013;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
header.site .inner{max-width:1040px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.logo{font-weight:700;color:var(--brand);text-decoration:none;font-size:15px}
.logo small{display:block;font-weight:400;color:var(--muted);font-size:11px}
nav.site a{margin-left:16px;font-size:14px;text-decoration:none}
main{max-width:1040px;margin:0 auto;padding:0 20px 64px}
.hero{padding:88px 0 56px;display:grid;gap:28px;grid-template-columns:1fr;align-items:center}
.hero h1{font-size:clamp(30px,4vw,46px);line-height:1.35;margin:0 0 12px}
.hero p.lead{font-size:17px;color:var(--muted);margin:0 0 20px}
.hero .card{box-shadow:0 10px 40px #5b6bd014;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.price{font-size:30px;font-weight:700;color:var(--brand)}
.price small{font-size:14px;color:var(--muted);font-weight:400}
.btn{display:inline-block;background:linear-gradient(135deg,#5b6bd0,#9b6bd9);color:#fff;text-decoration:none;font-weight:700;padding:14px 22px;border-radius:16px;border:0;box-shadow:0 10px 30px #7b6bd933;font-size:16px;cursor:pointer;min-height:48px}
.btn.secondary{background:var(--surface);color:var(--brand);border:1px solid #fff;box-shadow:none}
.btn-row{display:flex;gap:12px;flex-wrap:wrap}
section{margin-top:72px;scroll-margin-top:110px}
section h2{font-size:24px;margin:0 0 16px}
.grid3{display:grid;grid-template-columns:1fr;gap:16px}
.grid2{display:grid;grid-template-columns:1fr;gap:16px}
.box{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.box h3{margin:0 0 6px;font-size:17px}
.box p{margin:0;color:var(--muted);font-size:15px}
ol.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;gap:12px}
ol.steps li{counter-increment:s;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px 14px 56px;position:relative}
ol.steps li::before{content:counter(s);position:absolute;left:16px;top:14px;width:28px;height:28px;border-radius:50%;background:var(--brand-soft);color:var(--brand);font-weight:700;display:flex;align-items:center;justify-content:center}
table.compare{width:100%;border-collapse:collapse;background:var(--surface);border-radius:var(--radius);overflow:hidden;font-size:15px}
table.compare th,table.compare td{border-bottom:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
table.compare th{background:var(--brand-soft);font-weight:700}
.notice{background:var(--warn-soft);border:1px solid #f0d7a8;border-radius:var(--radius);padding:14px 16px;color:#5a3a00;font-size:15px}
.notice strong{color:var(--warn)}
.fineprint{font-size:13px;color:var(--muted)}
form.inquiry{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px;display:grid;gap:22px}
.field{display:grid;gap:6px}
.field>label,.field>legend{font-weight:700;font-size:15px}
.field .hint{font-size:13px;color:var(--muted)}
.req{font-size:11px;background:var(--brand);color:#fff;border-radius:4px;padding:1px 6px;margin-left:6px;vertical-align:2px}
.opt{font-size:11px;background:#e9e9e6;color:var(--muted);border-radius:4px;padding:1px 6px;margin-left:6px;vertical-align:2px}
input[type=text],input[type=email],input[type=number],select,textarea{width:100%;font:inherit;padding:12px 14px;border:1px solid #cfcfca;border-radius:10px;background:#fff;min-height:48px}
textarea{min-height:110px}
input:focus,select:focus,textarea:focus{outline:3px solid var(--brand-soft);border-color:var(--brand)}
fieldset{border:0;padding:0;margin:0}
.choices{display:grid;gap:8px}
.choices label{display:flex;gap:10px;align-items:center;border:1px solid #cfcfca;border-radius:10px;padding:12px 14px;min-height:48px;cursor:pointer;font-weight:400}
.choices input{width:20px;height:20px;flex:none}
.inline-note{display:none}
.inline-note.show{display:block}
.result{display:none;background:#e9f6f3;border:1px solid #b9e2d9;border-radius:var(--radius);padding:16px;color:#0b4f45}
.result.show{display:block}
footer.site{border-top:1px solid var(--line);background:var(--surface);margin-top:56px}
footer.site .inner{max-width:1040px;margin:0 auto;padding:20px;font-size:13px;color:var(--muted)}
footer.site a{margin-right:14px}
.check-item{display:flex;gap:12px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 14px;cursor:pointer}
.check-item input{width:22px;height:22px;flex:none;margin-top:3px}
.check-item .why{display:block;font-size:13px;color:var(--muted)}
.check-group{display:grid;gap:10px;margin-bottom:24px}
.score{position:sticky;bottom:0;background:var(--brand);color:#fff;border-radius:12px;padding:12px 16px;margin-top:16px;font-weight:700}
@media (max-width:760px){
  .hero{grid-template-columns:1fr;padding-top:28px}
  .hero h1{font-size:26px}
  .grid3,.grid2{grid-template-columns:1fr}
  nav.site a{margin-left:10px;font-size:13px}
  table.compare{font-size:14px}
}
/* 法務ページ */
.legal h1{font-size:26px;line-height:1.4;margin:32px 0 8px}
.legal h2{font-size:19px;margin:28px 0 8px}
.legal table{width:100%;border-collapse:collapse;background:var(--surface);font-size:15px}
.legal th,.legal td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.legal th{background:var(--brand-soft);width:32%}
.ph{background:#fff1a8;border-radius:4px;padding:0 4px;font-weight:700}
.lr{display:inline-block;background:#fde2e1;color:#8a1c17;border-radius:4px;padding:0 6px;font-size:12px;font-weight:700;margin-left:4px}

body {position:relative;isolation:isolate;-webkit-font-smoothing:antialiased;overflow-wrap:anywhere}
body::before {content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(600px 500px at 15% 8%,#d9e4ff,transparent 70%),radial-gradient(500px 450px at 90% 14%,#ffdcef,transparent 70%),radial-gradient(600px 500px at 70% 50%,#dcfaf0,transparent 70%),radial-gradient(600px 500px at 10% 75%,#ece0ff,transparent 70%);pointer-events:none}
.logo img {display:block;width:auto;height:28px}
.logo small {font-size:10px;margin-top:3px}
.ey {display:inline-block;font-size:12px;letter-spacing:.1em;font-weight:700;color:var(--brand);background:#ffffffa0;border:1px solid #fff;padding:6px 14px;border-radius:99px}
.hero-caption {color:var(--muted);font-size:14px;margin-bottom:24px}
.hero .lead {font-size:15px!important}
.box,.card,form.inquiry,details,.check-item {backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-color:#ffffffd9;box-shadow:0 10px 40px #5b6bd014}
.box h3 {margin-bottom:12px}
section h2 {font-size:clamp(24px,3vw,32px);line-height:1.5;margin-bottom:24px}
details {background:var(--surface);border:1px solid #fff;border-radius:var(--radius);padding:22px 26px;margin-top:22px}
summary {cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;font-weight:700;font-size:15px;line-height:1.6;color:var(--brand);min-height:32px}
summary::-webkit-details-marker {display:none}
summary::marker {content:""}
summary::after {content:"+";display:flex;align-items:center;justify-content:center;flex:none;width:28px;height:28px;border:1px solid #ffffff;border-radius:50%;background:var(--brand-soft);font-size:22px;line-height:1;font-weight:400}
details[open]>summary::after {content:"−"}
summary:hover {color:var(--text)}
details[open]>summary {margin-bottom:18px}
details p {font-size:14px;color:var(--muted)}
details p:last-child {margin-bottom:0}
.hero .card h2 {font-size:20px;margin:0 0 8px}
.hero .card>p {margin:0;font-size:15px;color:var(--brand);font-weight:700}
.sr-only {position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.compare {table-layout:fixed}
.compare th:first-child,.compare td:first-child {width:36%}
.compare th {color:var(--brand)}
:focus-visible {outline:3px solid #5b6bd0;outline-offset:4px}
.legal {max-width:800px;padding-top:28px}
.legal h1 {font-size:clamp(26px,4vw,38px)}
.legal table {table-layout:fixed}
.legal section {margin-top:32px}
#apply {max-width:760px;margin-left:auto;margin-right:auto}
#apply>.box,#apply>form {margin-top:20px}
.link-block {margin-top:32px}
.text-link,.link-block a {font-weight:700}
@media (max-width:760px) {
 header.site {margin:10px;top:8px}
 header.site .inner {padding:12px 16px}
 header.site nav {display:flex;gap:8px}
 nav.site a {font-size:12px;margin:0}
 .logo small {max-width:150px;font-size:9px}
 main {padding:0 18px 40px}
 .hero {padding:48px 0 32px;gap:32px}
 .hero h1 {font-size:30px}
 .hero .card {padding:24px}
 .btn-row {flex-direction:column}
 .btn-row .btn {text-align:center;padding:15px 16px}
 section {margin-top:48px}
 .compare th,.compare td {padding:10px 7px;font-size:12px;line-height:1.7}
 .box,details,form.inquiry {padding:22px}
 .price {font-size:28px}
 footer.site .inner {display:flex;flex-wrap:wrap;gap:12px}
 footer.site a {margin:0}
}
@media (prefers-reduced-motion:no-preference) {html {scroll-behavior:smooth}}

@media (min-width:761px) {
 .hero {grid-template-columns:1.3fr 1fr}
 .grid3 {grid-template-columns:repeat(3,1fr)}
 .grid2 {grid-template-columns:repeat(2,1fr)}
}