@charset "utf-8";
/* ==========================================================================
   株式会社リヴェストホーム デモサイト 共通スタイル
   配色は 13_Web構成.md「4. デザイン方針」準拠。青系は一切使用しない。
   ========================================================================== */

:root{
  --base:        #FFFFFF;
  --base-sub:    #F4F6E8;
  --green:       #6E7C13;
  --green-dark:  #4B540C;
  --green-deep:  #2C310A;
  --accent:      #B2C91F;   /* 面積の小さい装飾のみ。文字色には使わない */
  --neutral:     #474747;
  --text:        #1A1A1A;
  --text-sub:    #595959;

  --wrap: 1120px;
  --prose: 720px;
  --sec: 96px;
  --sec-sub: 80px;

  --fast: 180ms;
  --normal: 560ms;
  --ease-out: cubic-bezier(.22,.61,.36,1);
  --ease-in:  cubic-bezier(.55,.06,.68,.19);

  --header-h: 84px;
  --radius: 10px;
  --shadow:    0 2px 10px rgba(44,49,10,.08);
  --shadow-up: 0 10px 28px rgba(44,49,10,.18);
}

*,*::before,*::after{ box-sizing:border-box; }
html,body{ overflow-x:hidden; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  margin:0;
  font-family:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  background:var(--base);
  padding-top:var(--header-h);
}
img,table,pre,video,iframe,svg{ max-width:100%; }
img{ height:auto; display:block; border:0; }
a{ color:var(--green-dark); }
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,
textarea:focus-visible,summary:focus-visible,[tabindex]:focus-visible{
  outline:3px solid var(--green);
  outline-offset:2px;
}
h1,h2,h3,h4{ line-height:1.5; letter-spacing:.02em; margin:0 0 .6em; }
p{ margin:0 0 1.4em; }
ul,ol{ margin:0 0 1.4em; padding-left:1.4em; }
li{ margin-bottom:.5em; }
table{ border-collapse:collapse; }

.wrap{ width:100%; max-width:var(--wrap); margin-inline:auto; padding-inline:24px; }
.prose{ max-width:var(--prose); }
.section{ padding-block:var(--sec); }
.section--sub{ padding-block:var(--sec-sub); }
.section--tint{ background:var(--base-sub); }
.section--deep{ background:var(--green-deep); color:#fff; }
.section--deep a{ color:#fff; }

.h-lead{ font-size:40px; color:var(--green-dark); margin-bottom:.5em; }
.h-sec{ font-size:40px; color:var(--green-dark); }
.h-sub{ font-size:26px; color:var(--green-dark); }
.section--deep .h-sec,.section--deep .h-sub,
.band .h-sec,.band .h-sub,
.checker .h-sec,.checker .h-sub{ color:#fff; }
.h-sec::after{
  content:""; display:block; width:56px; height:4px;
  background:var(--accent); border-radius:2px; margin-top:18px;
}
.lead{ font-size:19px; }
.note{ font-size:14px; line-height:1.8; color:var(--text-sub); margin:0 0 1em; }
.section--deep .note,.band .note,.checker .note{ color:#D8DCC4; }
.band .note--img{ color:#C9CDB4; }
.note--img{ font-size:14px; color:var(--text-sub); margin:8px 0 0; }
.eyebrow{
  display:inline-block; font-size:14px; font-weight:700; letter-spacing:.12em;
  color:var(--green-dark); border-bottom:3px solid var(--accent);
  padding-bottom:3px; margin-bottom:18px;
}
.section--deep .eyebrow,.band .eyebrow,.checker .eyebrow,.ctaband .eyebrow{ color:#fff; }
.center{ text-align:center; }

/* ---------- header ---------- */
.site-header{
  position:fixed; inset:0 0 auto 0; z-index:100;
  height:var(--header-h);
  background:rgba(255,255,255,.97);
  border-bottom:1px solid #E3E7CE;
  transition:height var(--fast) var(--ease-out), background var(--fast) var(--ease-out);
}
.site-header.is-scrolled{
  height:64px;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px);
  box-shadow:var(--shadow);
}
.header-inner{
  height:100%; display:flex; align-items:center; gap:20px;
  max-width:var(--wrap); margin-inline:auto; padding-inline:24px;
}
.brand{ display:flex; flex-direction:column; justify-content:center; text-decoration:none;
  line-height:1.25; flex-shrink:0; min-height:44px; }
.brand strong{ font-size:19px; color:var(--green-dark); letter-spacing:.02em; }
.brand span{ font-size:12px; color:var(--text-sub); }
.site-header.is-scrolled .brand span{ display:none; }

.gnav{ margin-left:auto; }
.gnav ul{ display:flex; gap:22px; list-style:none; margin:0; padding:0; }
.gnav li{ margin:0; }
.gnav a{
  font-size:15px; text-decoration:none; color:var(--text);
  padding:6px 0; display:inline-block; position:relative; white-space:nowrap;
}
.gnav a::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:3px;
  background:var(--accent); transform:scaleX(0); transform-origin:left;
  transition:transform var(--fast) var(--ease-out);
}
.gnav a:hover::after{ transform:scaleX(1); }
.gnav a[aria-current="page"]::after{ transform:scaleX(1); }
.gnav a[aria-current="page"]{ color:var(--green-dark); font-weight:700; }

.header-cta{ display:flex; align-items:center; gap:10px; flex-shrink:0; }
.nav-toggle{ display:none; }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  min-height:52px; padding:12px 26px;
  font-size:17px; font-weight:700; line-height:1.4; text-align:center;
  text-decoration:none; border:2px solid transparent; border-radius:var(--radius);
  cursor:pointer; font-family:inherit;
  transition:background var(--fast) var(--ease-out),
             color var(--fast) var(--ease-out),
             border-color var(--fast) var(--ease-out),
             transform var(--fast) var(--ease-out);
}
.btn--primary{ background:var(--green); color:#fff; }
.btn--primary:hover{ background:var(--green-dark); }
.btn--outline{ background:#fff; color:var(--green-dark); border-color:var(--green); }
.btn--outline:hover{ background:var(--base-sub); }
.btn--tel{ background:var(--green-deep); color:#fff; }
.btn--tel:hover{ background:var(--green-dark); }
.btn--onDeep{ background:#fff; color:var(--green-deep); }
.btn--onDeep:hover{ background:var(--base-sub); }
.btn--sm{ min-height:44px; padding:8px 16px; font-size:15px; }
.btn--lg{ min-height:60px; padding:16px 34px; font-size:19px; }
.btn:active{ transform:scale(.97); }
.btn .ico{ width:22px; height:22px; flex-shrink:0; }
/* アイコンは濃いオリーブの線画。濃色ボタンの上では白へ反転させる
   （そのままだと緑地・濃緑地でほとんど見えない） */
.btn--primary .ico,.btn--tel .ico{ filter:brightness(0) invert(1); }

.btn-row{ display:flex; flex-wrap:wrap; gap:14px; }
.btn-row--center{ justify-content:center; }

/* ---------- hero ---------- */
.hero{ position:relative; overflow:hidden; background:var(--green-deep); }
.hero-media{ position:absolute; inset:0; }
.hero-media img{ width:100%; height:100%; object-fit:cover; }
.hero-media::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(100deg,rgba(44,49,10,.96) 0%,rgba(44,49,10,.93) 52%,rgba(44,49,10,.62) 76%,rgba(44,49,10,.25) 100%);
}
.hero-inner{ position:relative; padding-block:120px; }
.hero h1{ font-size:48px; color:#fff; max-width:16em; margin-bottom:.4em; }
.hero .hero-sub{ font-size:19px; color:#F0F2E2; max-width:28em; }
.hero .note--img{ color:#C9CDB4; }

.pagehead{ position:relative; overflow:hidden; background:var(--green-deep); }
.pagehead .hero-media::after{
  background:linear-gradient(100deg,rgba(44,49,10,.93) 0%,rgba(44,49,10,.82) 55%,rgba(44,49,10,.55) 100%);
}
.pagehead-inner{ position:relative; padding-block:72px; }
.pagehead h1{ font-size:40px; color:#fff; margin-bottom:.3em; }
.pagehead p{ color:#E8EBD8; max-width:36em; margin:0; }
.pagehead .note--img{ color:#C9CDB4; margin-top:14px; }
.breadcrumb{ font-size:14px; color:#C9CDB4; margin:0 0 14px; }
.breadcrumb a{ color:#E8EBD8; }
.breadcrumb ol{ list-style:none; display:flex; flex-wrap:wrap; gap:8px; margin:0; padding:0; }
.breadcrumb li{ margin:0; display:flex; align-items:center; }
.breadcrumb a{ display:inline-block; padding:12px 0; }
.breadcrumb li+li::before{ content:"\203A"; margin-right:8px; }

/* ---------- 主役層：かんたん外壁面積チェック ---------- */
.checker{ background:var(--green-deep); color:#fff; }
.checker .h-sec{ color:#fff; }
.checker-grid{ display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:start; }
.checker-field .lbl{ display:block; font-size:19px; font-weight:700; margin-bottom:12px; }
.checker-input-row{ display:flex; align-items:center; gap:12px; }
.checker-input-row input[type="number"]{
  width:180px; height:64px; font-size:28px; font-weight:700; font-family:inherit;
  padding:0 14px; color:var(--text); background:#fff;
  border:2px solid #fff; border-radius:var(--radius);
}
.checker-input-row .unit{ font-size:21px; font-weight:700; }
.checker-range{ width:100%; margin-top:26px; }
.checker-range input[type="range"]{ width:100%; height:44px; accent-color:var(--accent); cursor:pointer; }
.checker-range .scale{ display:flex; justify-content:space-between; font-size:14px; color:#D8DCC4; }
.checker-error{
  display:none; margin-top:14px; padding:10px 14px;
  background:#fff; color:#8A1C1C; font-size:15px; font-weight:700;
  border-left:5px solid #8A1C1C; border-radius:6px;
}
.checker-error.is-shown{ display:block; }

.result-card{
  background:#fff; color:var(--text); border-radius:14px; padding:34px 32px;
  box-shadow:var(--shadow-up);
  opacity:0; transform:translateY(28px);
  transition:opacity var(--normal) var(--ease-out), transform var(--normal) var(--ease-out);
}
.result-card.is-shown{ opacity:1; transform:none; }
.result-card .label{ font-size:17px; font-weight:700; color:var(--text-sub); margin:0 0 6px; }
.result-figure{ display:flex; align-items:baseline; gap:8px; margin-bottom:6px; }
.result-num{ font-size:64px; font-weight:700; color:var(--green-dark); line-height:1.1; font-variant-numeric:tabular-nums; }
.result-unit{ font-size:24px; font-weight:700; color:var(--green-dark); }
.result-card hr{ border:0; border-top:2px solid var(--accent); margin:18px 0; }
.result-note{ font-size:14px; line-height:1.8; color:var(--text-sub); margin:14px 0 0; }
.result-note .extra{ display:block; margin-top:6px; font-weight:700; }

/* ---------- cards ---------- */
.cards{ display:grid; gap:28px; }
.cards--2{ grid-template-columns:repeat(2,1fr); }
.cards--3{ grid-template-columns:repeat(3,1fr); }
.card{
  color:var(--text);
  background:#fff; border:1px solid #E3E7CE; border-radius:var(--radius);
  overflow:hidden; display:flex; flex-direction:column;
  box-shadow:var(--shadow);
  transition:transform var(--fast) var(--ease-out), box-shadow var(--fast) var(--ease-out);
}
.card:hover{ transform:scale(1.03); box-shadow:var(--shadow-up); }
.card-media{ overflow:hidden; }
.card-media img{ width:100%; aspect-ratio:4/3; object-fit:cover; transition:transform .6s var(--ease-out); }
.card:hover .card-media img{ transform:scale(1.05); }
.card-body{ padding:26px 24px 28px; display:flex; flex-direction:column; flex:1; }
.card-body h3{ font-size:26px; color:var(--green-dark); }
.card-body .btn{ margin-top:auto; align-self:flex-start; }
.card .note--img{ padding:8px 24px 0; }

.plate{
  color:var(--text);
  background:#fff; border:1px solid #E3E7CE; border-left:6px solid var(--accent);
  border-radius:var(--radius); padding:28px 26px; box-shadow:var(--shadow);
}
.section--deep .plate{ background:rgba(255,255,255,.06); border-color:rgba(255,255,255,.22); border-left-color:var(--accent); }
.plate h3{ font-size:26px; color:var(--green-dark); }
.section--deep .plate h3{ color:#fff; }
.plate p:last-child{ margin-bottom:0; }
.plate .ico-lg{ width:56px; height:56px; margin-bottom:12px; }

/* ---------- 直接施工の仕組み ---------- */
.flowdiag{ display:grid; grid-template-columns:1fr 1fr; gap:32px; }
.flowdiag figure{ margin:0; background:#fff; border:1px solid #E3E7CE; border-radius:var(--radius); padding:26px 22px; box-shadow:var(--shadow); }
.flowdiag figcaption{ font-size:21px; font-weight:700; color:var(--green-dark); margin-bottom:14px; }
.flowdiag svg{ width:100%; height:auto; display:block; }

/* ---------- 品質帯 ---------- */
.band{ position:relative; overflow:hidden; background:var(--green-deep); color:#fff; }
.band-media{ position:absolute; inset:0; }
.band-media img{ width:100%; height:100%; object-fit:cover; }
.band-media::after{ content:""; position:absolute; inset:0; background:rgba(44,49,10,.88); }
.band-inner{ position:relative; padding-block:var(--sec); }

/* ---------- 比較スライダー ---------- */
.compare{
  position:relative; width:100%; aspect-ratio:4/3; overflow:hidden;
  border-radius:var(--radius); box-shadow:var(--shadow);
  user-select:none; -webkit-user-select:none; touch-action:pan-y;
  cursor:ew-resize; background:#2C310A;
}
.compare img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; pointer-events:none; }
.compare .after-layer{ clip-path:inset(0 0 0 50%); }
.compare-handle{
  position:absolute; top:0; bottom:0; left:50%; width:4px; background:#fff;
  transform:translateX(-2px); pointer-events:none; box-shadow:0 0 0 1px rgba(44,49,10,.35);
}
.compare-knob{
  position:absolute; top:50%; left:50%; width:52px; height:52px; margin:-26px 0 0 -26px;
  background:#fff; border:3px solid var(--green); border-radius:50%;
  display:flex; align-items:center; justify-content:center; pointer-events:none;
  box-shadow:var(--shadow-up);
}
.compare-knob svg{ width:26px; height:26px; }
.compare-tag{
  position:absolute; top:14px; padding:5px 14px; font-size:14px; font-weight:700;
  color:#fff; background:rgba(44,49,10,.85); border-radius:999px; pointer-events:none;
}
.compare-tag.is-before{ left:14px; }
.compare-tag.is-after{ right:14px; }
.compare-range{
  position:absolute; inset:auto 0 0 0; width:100%; height:44px; opacity:0; margin:0;
  cursor:ew-resize;
}
.compare-range:focus-visible{ opacity:1; }

/* ---------- STEP タイムライン ---------- */
.steps{ display:grid; grid-template-columns:repeat(5,1fr); gap:18px; position:relative; }
.steps::before{
  content:""; position:absolute; left:0; right:0; top:34px; height:3px;
  background:var(--accent); border-radius:2px;
}
.step{ position:relative; }
.step .num{
  width:68px; height:68px; margin:0 auto 16px; border-radius:50%;
  background:var(--green); color:#fff; font-size:15px; font-weight:700;
  display:flex; align-items:center; justify-content:center;
  border:4px solid var(--base-sub); position:relative; z-index:1;
}
.step h3{ font-size:19px; color:var(--green-dark); text-align:center; }
.step p{ font-size:15px; line-height:1.8; margin:0; }

/* ---------- 対応エリア ---------- */
.area-main{ display:flex; flex-wrap:wrap; gap:14px; list-style:none; margin:0 0 26px; padding:0; }
.area-main li{
  font-size:26px; font-weight:700; color:var(--green-dark);
  background:#fff; border:2px solid var(--accent); border-radius:999px;
  padding:8px 26px; margin:0;
}
.area-wide{ display:flex; flex-wrap:wrap; gap:10px 22px; list-style:none; margin:0; padding:0; }
.area-wide li{ font-size:17px; color:var(--text-sub); margin:0; }

/* ---------- 表 ---------- */
.table-scroll{ overflow-x:auto; -webkit-overflow-scrolling:touch; }
.tbl{ width:100%; min-width:640px; background:#fff; font-size:17px; }
.tbl th,.tbl td{ border:1px solid #D9DEC2; padding:18px 20px; text-align:left; vertical-align:top; line-height:1.85; }
.tbl thead th{ background:var(--green-deep); color:#fff; }
.tbl tbody th{ background:var(--base-sub); color:var(--green-dark); width:26%; }
.tbl td a{ display:inline-block; min-height:44px; padding:10px 0; }
.tbl--info{ min-width:0; }
.tbl--info tbody th{ width:32%; }

/* ---------- チェックリスト ---------- */
.checklist{ list-style:none; margin:0 0 1.4em; padding:0; }
.checklist li{
  position:relative; padding:18px 20px 18px 62px; margin-bottom:14px;
  background:#fff; border:1px solid #E3E7CE; border-radius:var(--radius);
  box-shadow:var(--shadow); font-size:19px; font-weight:700; color:var(--green-dark);
}
.checklist li::before{
  content:""; position:absolute; left:22px; top:28px; width:22px; height:12px;
  border-left:4px solid var(--accent); border-bottom:4px solid var(--accent);
  transform:rotate(-45deg);
}
.checklist li span{ display:block; font-size:17px; font-weight:400; color:var(--text); margin-top:6px; }

.linklist{ list-style:none; padding:0; max-width:520px; }
.linklist li{ margin:0; border-bottom:1px solid #D9DEC2; }
.linklist a{ display:block; padding:14px 0; min-height:44px; font-weight:700; text-decoration:none; }
.linklist a:hover{ text-decoration:underline; }

/* ---------- 引用 ---------- */
.pull{
  margin:0; padding:34px 32px; background:var(--base-sub);
  border-left:8px solid var(--accent); border-radius:var(--radius);
}
.pull p{ font-size:32px; font-weight:700; line-height:1.7; color:var(--green-dark); margin:0; }
.pull footer{ font-size:15px; color:var(--text-sub); margin-top:12px; }
.section--deep .pull{ background:rgba(255,255,255,.07); }
.section--deep .pull p{ color:#fff; }

/* ---------- FAQ ---------- */
.faq{ max-width:860px; }
.faq details{
  background:#fff; border:1px solid #E3E7CE; border-radius:var(--radius);
  margin-bottom:14px; box-shadow:var(--shadow); overflow:hidden;
}
.faq summary{
  list-style:none; cursor:pointer; padding:22px 58px 22px 24px;
  font-size:19px; font-weight:700; color:var(--green-dark); position:relative;
}
.faq summary::-webkit-details-marker{ display:none; }
.faq summary::after{
  content:""; position:absolute; right:26px; top:30px; width:14px; height:14px;
  border-right:3px solid var(--green); border-bottom:3px solid var(--green);
  transform:rotate(45deg); transition:transform var(--fast) var(--ease-out);
}
.faq details[open] summary::after{ transform:rotate(-135deg); top:36px; }
.faq .faq-body{ padding:0 24px 24px; }
.faq .faq-body p:last-child{ margin-bottom:0; }

/* ---------- CTA帯 ---------- */
.ctaband{ background:var(--green-deep); color:#fff; }
.ctaband .inner{ padding-block:72px; text-align:center; }
.ctaband h2{ font-size:32px; color:#fff; }
.ctaband p{ color:#E8EBD8; max-width:40em; margin-inline:auto; }
.cta3{ display:grid; grid-template-columns:repeat(3,1fr); gap:18px; max-width:840px; margin:32px auto 0; }

/* ---------- フォーム ---------- */
.form{ max-width:760px; }
.field{ margin-bottom:26px; }
.field label,.field .lbl{ display:block; font-size:17px; font-weight:700; margin-bottom:8px; }
.field .req{ font-size:14px; font-weight:700; color:#fff; background:var(--green); border-radius:4px; padding:2px 8px; margin-left:8px; }
.field .opt{ font-size:14px; color:var(--text-sub); margin-left:8px; font-weight:400; }
.field input[type="text"],.field input[type="tel"],.field input[type="email"],
.field input[type="number"],.field select,.field textarea{
  width:100%; min-height:52px; padding:12px 14px; font-size:17px; font-family:inherit;
  color:var(--text); background:#fff; border:2px solid #C7CDA8; border-radius:var(--radius);
}
.field textarea{ min-height:170px; line-height:1.8; resize:vertical; }
.field .help{ font-size:14px; color:var(--text-sub); margin:8px 0 0; }
.radio-row{ display:flex; flex-wrap:wrap; gap:12px; }
.radio-row label{
  display:inline-flex; align-items:center; gap:10px; min-height:52px;
  padding:10px 20px; font-weight:400; margin:0;
  background:#fff; border:2px solid #C7CDA8; border-radius:var(--radius); cursor:pointer;
  transition:border-color var(--fast) var(--ease-out), background var(--fast) var(--ease-out);
}
.radio-row label:hover{ border-color:var(--green); background:var(--base-sub); }
.radio-row input{ width:22px; height:22px; accent-color:var(--green); }

/* ---------- 連絡先ブロック ---------- */
.contact2{ display:grid; grid-template-columns:1fr 1fr; gap:28px; }
.contact-block{
  background:#fff; border:1px solid #E3E7CE; border-top:6px solid var(--green);
  border-radius:var(--radius); padding:30px 28px; box-shadow:var(--shadow);
}
.contact-block h3{ font-size:26px; color:var(--green-dark); }
.contact-block .big{
  display:inline-flex; align-items:center; gap:12px; min-height:48px; padding:4px 0;
  font-size:32px; font-weight:700; color:var(--green-dark); text-decoration:none; line-height:1.3;
}
.contact-block .big img{ width:32px; height:32px; }
.contact-block .big:hover{ color:var(--green); }
.contact-block .big.is-mail{ font-size:24px; word-break:break-all; }

/* ---------- フッター ---------- */
.site-footer{ background:var(--green-deep); color:#E8EBD8; padding-block:60px 34px; font-size:15px; }
.site-footer a{ color:#E8EBD8; text-decoration:none; }
.site-footer a:hover{ text-decoration:underline; }
.site-footer .btn{ text-decoration:none; }
.site-footer .btn--onDeep{ color:var(--green-deep); }
.site-footer .btn--primary,.site-footer .btn--tel{ color:#fff; }
.site-footer .btn:hover{ text-decoration:none; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:40px; }
.footer-brand strong{ display:block; font-size:21px; color:#fff; margin-bottom:10px; }
.footer-nav h4{ font-size:15px; color:#fff; letter-spacing:.08em; margin-bottom:14px; padding-bottom:8px; border-bottom:2px solid var(--accent); }
.footer-nav ul{ list-style:none; margin:0; padding:0; }
.footer-nav li{ margin-bottom:2px; }
.footer-nav li a{ display:inline-block; padding:12px 0; line-height:1.5; }
.footer-cta{ display:flex; flex-direction:column; gap:10px; margin-top:16px; }
.footer-bottom{ margin-top:44px; padding-top:24px; border-top:1px solid rgba(255,255,255,.18); }
.demo-note{ font-size:14px; line-height:1.85; color:#C9CDB4; margin:0 0 14px; }
.copyright{ font-size:14px; color:#C9CDB4; margin:0; }

.shot{ width:100%; aspect-ratio:4/3; object-fit:cover; border-radius:var(--radius); }

/* 幅の狭い画面では、3列の比較表を縦積みのブロックに切り替える */
@media (max-width:700px){
  .tbl--stack{ min-width:0; }
  .tbl--stack thead{ position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; }
  .tbl--stack,.tbl--stack tbody,.tbl--stack tr,.tbl--stack th,.tbl--stack td{ display:block; width:auto; }
  .tbl--stack tr{ margin-bottom:18px; border:1px solid #D9DEC2; border-radius:var(--radius); overflow:hidden; background:#fff; }
  .tbl--stack tbody th{ width:auto; background:var(--green-deep); color:#fff; border:0; font-size:19px; }
  .tbl--stack td{ border:0; border-top:1px solid #D9DEC2; }
  .tbl--stack td::before{ content:attr(data-label); display:block; font-size:14px; font-weight:700; color:var(--green-dark); margin-bottom:4px; }
}

/* ---------- 基礎層アニメーション ---------- */
@keyframes revealFallback{ to{ opacity:1; transform:none; } }
.reveal{ opacity:0; transform:translateY(28px); animation:revealFallback .6s ease-out 3s forwards; }
html.js-anim .reveal{ animation:none; }
.no-js .reveal{ opacity:1; transform:none; animation:none; }
.reveal.is-in{ opacity:1; transform:none; }

/* ---------- レスポンシブ ---------- */
.nav-only-mobile{ display:none; }
.txt-long{ display:none; }
@media (min-width:1400px){ .txt-long{ display:inline; } }
@media (max-width:1240px){
  .gnav ul{ gap:15px; }
  .gnav a{ font-size:14px; }
  .brand span{ display:none; }
}
@media (max-width:1024px){
  .gnav ul{ gap:13px; }
  .gnav a{ font-size:14px; }
  .header-cta .btn .txt{ display:none; }
  .header-cta .btn{ padding:8px 14px; }
}
@media (max-width:900px){
  :root{ --header-h:64px; --sec:64px; --sec-sub:56px; }
  .nav-toggle{
    display:inline-flex; align-items:center; justify-content:center;
    width:48px; height:48px; flex-shrink:0;
    background:#fff; border:2px solid var(--green); border-radius:var(--radius);
    cursor:pointer; padding:0;
  }
  .nav-toggle span{ display:block; width:22px; height:2px; background:var(--green-dark); position:relative; }
  .nav-toggle span::before,.nav-toggle span::after{
    content:""; position:absolute; left:0; width:22px; height:2px; background:var(--green-dark);
  }
  .nav-toggle span::before{ top:-7px; }
  .nav-toggle span::after{ top:7px; }
  .nav-toggle[aria-expanded="true"] span{ background:transparent; }
  .nav-toggle[aria-expanded="true"] span::before{ top:0; transform:rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span::after{ top:0; transform:rotate(-45deg); }

  .header-inner{ gap:10px; padding-inline:18px; }
  .gnav{
    position:fixed; left:0; right:0; top:var(--header-h);
    background:#fff; border-bottom:1px solid #E3E7CE; box-shadow:var(--shadow);
    max-height:calc(100vh - var(--header-h)); overflow-y:auto;
    display:none; margin:0;
  }
  .gnav.is-open{ display:block; }
  .gnav ul{ flex-direction:column; gap:0; padding:8px 24px 20px; }
  .gnav li{ border-bottom:1px solid #EDEFDF; }
  .gnav a{ display:block; padding:15px 0; font-size:17px; }
  .nav-only-mobile{ display:block; }
  .gnav a::after{ display:none; }

  .header-cta{ margin-left:auto; }
  .header-cta .btn--outline{ display:none; }
  .brand strong{ font-size:15px; }
  .brand span{ display:none; }

  .hero-inner{ padding-block:72px; }
  .hero h1{ font-size:30px; }
  .hero .hero-sub{ font-size:17px; }
  .pagehead-inner{ padding-block:48px; }
  .pagehead h1{ font-size:28px; }
  .h-sec,.h-lead{ font-size:28px; }
  .h-sub{ font-size:22px; }
  .lead{ font-size:17px; }
  .ctaband h2{ font-size:24px; }
  .pull{ padding:24px 22px; }
  .pull p{ font-size:21px; }

  .checker-grid,.cards--2,.cards--3,.flowdiag,.contact2,.cta3{ grid-template-columns:1fr; }
  .cards,.flowdiag{ gap:20px; }
  .checker-grid{ gap:30px; }
  .footer-grid{ grid-template-columns:1fr; gap:30px; }

  .steps{ grid-template-columns:1fr; gap:0; }
  .steps::before{ left:33px; right:auto; top:0; bottom:0; width:3px; height:auto; }
  .step{ display:grid; grid-template-columns:68px 1fr; gap:18px; padding-bottom:26px; }
  .step .num{ margin:0; }
  .step h3{ text-align:left; }

  .result-card{ padding:26px 22px; }
  .result-num{ font-size:48px; }
  .checker-input-row input[type="number"]{ width:140px; height:56px; font-size:24px; }
  .area-main li{ font-size:19px; padding:6px 18px; }
  .contact-block .big{ font-size:26px; }
  .contact-block .big.is-mail{ font-size:19px; }
  .compare-knob{ width:44px; height:44px; margin:-22px 0 0 -22px; }
  .checklist li{ font-size:17px; padding:16px 18px 16px 56px; }
}
@media (max-width:480px){
  body{ font-size:16px; }
  .wrap{ padding-inline:16px; }
  .btn{ font-size:16px; padding:12px 16px; }
  .btn-row .btn{ width:100%; }
  .hero h1{ font-size:25px; }
  .pagehead h1{ font-size:24px; }
  .h-sec,.h-lead{ font-size:24px; }
  .result-num{ font-size:42px; }
  .brand strong{ font-size:14px; }
  .header-cta .btn{ padding:8px 10px; }
  .plate,.contact-block,.flowdiag figure{ padding:22px 18px; }
  .tbl th,.tbl td{ padding:14px 14px; }
}

/* ---------- モーション配慮 ---------- */
@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{
    animation-duration:.001ms !important; animation-iteration-count:1 !important;
    transition-duration:.001ms !important; scroll-behavior:auto !important;
  }
  .reveal{ opacity:1 !important; transform:none !important; }
  /* 結果カードは「入力前は非表示」のまま。上の transition-duration 上書きで
     せり上がりだけが無くなり、即座に表示される。ここで opacity:1 にすると
     入力前から 0㎡ のカードが出てしまう */
  .card:hover{ transform:none; }
  .card:hover .card-media img{ transform:none; }
}