:root{--ink:#20242b;--text:#2C2C2B;--sub:#7D7A75;--line:#E6E5E3;--soft:#F9F8F7;--green:#46A171;--green-soft:#E8F1EC;--accent:#2783DE;}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Noto Sans JP","Noto Sans CJK JP","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;color:var(--text);background:#fff;line-height:1.75;font-size:16px}
img{max-width:100%;display:block}
.container{max-width:1100px;margin:0 auto;padding:0 24px}
a{text-decoration:none;color:inherit}
/* header */
.header{position:absolute;top:0;left:0;right:0;z-index:10;color:#fff}
.header-in{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{font-weight:700;letter-spacing:.08em}
.brand small{display:block;font-size:10.5px;font-weight:400;opacity:.8;letter-spacing:.2em}
.nav{display:flex;gap:26px;font-size:13.5px;align-items:center}
.nav .cta{background:#fff;color:var(--ink);border-radius:999px;padding:9px 20px;font-weight:700}
/* hero */
.hero{position:relative;min-height:520px;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero .bg{position:absolute;inset:0;background:url('../images/hero.jpg') center/cover no-repeat}
.hero .shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(18,24,33,.88) 0%,rgba(18,24,33,.62) 55%,rgba(18,24,33,.25) 100%)}
.hero-in{position:relative;padding:120px 0 72px;max-width:620px}
.hero .kicker{display:inline-block;background:var(--green);color:#fff;font-size:12.5px;font-weight:700;border-radius:999px;padding:5px 16px;letter-spacing:.08em;margin-bottom:20px}
.hero h1{font-size:clamp(28px,4vw,46px);line-height:1.3;letter-spacing:.02em}
.hero p{margin-top:18px;font-size:15.5px;opacity:.92}
.hero .btns{margin-top:30px;display:flex;gap:12px}
.btn{display:inline-block;border-radius:8px;padding:13px 26px;font-size:14px;font-weight:700}
.btn-w{background:#fff;color:var(--ink)}
.btn-o{border:1.5px solid rgba(255,255,255,.7);color:#fff}
/* trust bar */
.trust{background:var(--ink);color:#fff}
.trust-in{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding:22px 24px}
.trust div{display:flex;align-items:center;gap:12px;justify-content:center;font-size:14px}
.trust b{font-size:20px;color:#9fd4b6}
/* section */
.section{padding:72px 0}
.sec-label{display:flex;align-items:center;gap:14px;margin-bottom:32px}
.sec-label .bar{width:40px;height:3px;background:var(--green);border-radius:2px}
.sec-label h2{font-size:26px;letter-spacing:.03em}
/* strengths */
.str{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.str-card{background:var(--soft);border-radius:12px;padding:28px 26px}
.str-card .num{font-size:13px;font-weight:700;color:var(--green);letter-spacing:.16em}
.str-card h3{font-size:17px;margin:10px 0 10px}
.str-card p{font-size:14px;color:var(--sub)}
/* products */
.prod-bg{background:var(--soft)}
.tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}
.tab{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 20px;font-size:13.5px;font-weight:600}
.tab.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.plist{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.pcard{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.pcard .thumb{aspect-ratio:1/1;overflow:hidden;background:#fff;display:flex;align-items:center;justify-content:center}
.pcard .thumb img{width:100%;height:100%;object-fit:contain;padding:10px}
.pcard .body{padding:16px 18px 20px;border-top:1px solid var(--line)}
.pcard h4{font-size:14.5px;line-height:1.5}
.pcard p{font-size:12.5px;color:var(--sub);margin-top:6px}
.pcard .link{display:inline-block;margin-top:12px;font-size:13px;color:var(--green);font-weight:700}
/* news + contact */
.split{display:grid;grid-template-columns:1.2fr .8fr;gap:48px}
.news-item{padding:16px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.news-item .d{color:var(--sub);font-size:13px;margin-right:14px}
.contact-card{background:var(--ink);color:#fff;border-radius:14px;padding:32px 30px}
.contact-card h3{font-size:19px;margin-bottom:8px}
.contact-card p{font-size:13.5px;opacity:.85}
.contact-card .tel{font-size:28px;font-weight:700;margin:16px 0 2px;letter-spacing:.03em}
.contact-card .hours{font-size:12.5px;opacity:.7;margin-bottom:20px}
.footer{background:#14181f;color:rgba(255,255,255,.65);padding:32px 0;font-size:13px}
.footer-in{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
@media(max-width:760px){.trust .trust-in{display:block !important;padding:18px 24px}.trust .trust-in div{justify-content:flex-start;padding:6px 0}.str,.split{grid-template-columns:1fr}.plist{grid-template-columns:repeat(2,1fr)}.nav{display:none}.hero-in{padding-top:100px}}

/* ===== 追加：下層ページ・本文用 ===== */
.page-hero{background:var(--ink);color:#fff;padding:120px 0 48px}
.page-hero h1{font-size:34px;margin:0 0 10px}
.page-hero .lead{color:#cbd5df;max-width:720px}
.page-hero .crumbs{font-size:12px;color:#9fb0bd;margin-bottom:14px}
.page-hero .crumbs a{color:#9fb0bd}
.prose{max-width:860px;margin:0 auto;padding:48px 24px;line-height:1.9}
.prose h2{font-size:24px;margin:44px 0 14px;padding-left:14px;border-left:4px solid var(--green)}
.prose h3{font-size:18px;margin:28px 0 10px}
.prose img{max-width:100%;border-radius:10px}
.prose ul,.prose ol{padding-left:1.4em}
.prose blockquote{border-left:4px solid #d8dee4;margin:16px 0;padding:4px 16px;color:#5a6a76}
.tbl-wrap{overflow-x:auto;margin:18px 0}
.tbl-wrap table{border-collapse:collapse;width:100%;font-size:14px;background:#fff}
.tbl-wrap th{background:var(--ink);color:#fff;text-align:left;padding:10px 14px;white-space:nowrap}
.tbl-wrap td{border-bottom:1px solid #e3e8ec;padding:10px 14px}
.tbl-wrap tr:nth-child(even) td{background:#f6f8f9}
.hero-media{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:start;max-width:1100px;margin:0 auto;padding:40px 24px 0}
.hero-media img{width:100%;border-radius:12px;background:#fff}
.related{background:var(--paper);padding:56px 0}
@media(max-width:760px){.hero-media{grid-template-columns:1fr}.page-hero h1{font-size:26px}}

/* ===== フェーズ4：追加レイアウト ===== */
/* Q&A（アコーディオン） */
.qa{border:1px solid var(--line);border-radius:10px;margin:10px 0;background:#fff}
.qa summary{display:flex;align-items:flex-start;gap:12px;padding:14px 18px;font-weight:700;cursor:pointer;list-style:none}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";margin-left:auto;color:var(--green);font-size:20px;font-weight:400}
.qa[open] summary::after{content:"\2212"}
.q-mark,.a-mark{flex:0 0 26px;height:26px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700}
.q-mark{background:var(--ink);color:#fff}
.a-mark{background:var(--green);color:#fff}
.qa-a{display:flex;gap:12px;padding:0 18px 16px;border-top:1px dashed var(--line);padding-top:14px;font-size:14.5px}
/* CTAバンド */
.cta-band{background:var(--green-soft);border-radius:12px;padding:26px 28px;margin:40px 0 8px;text-align:center}
.cta-band p{margin-bottom:14px;font-weight:600}
.btn-g{background:var(--green);color:#fff}
.btn-o2{border:1.5px solid var(--green);color:var(--green);margin-left:10px}
/* 資料ダウンロード */
.dl-list{margin:14px 0 30px}
.dl-item{display:flex;align-items:center;gap:16px;border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin:10px 0;background:#fff}
.dl-type{flex:0 0 auto;background:var(--ink);color:#fff;font-size:11px;font-weight:700;border-radius:6px;padding:4px 10px;letter-spacing:.06em}
.dl-body{flex:1}
.dl-body b{font-size:14.5px}
.dl-body p{font-size:12.5px;color:var(--sub);margin-top:2px}
.btn-dl{flex:0 0 auto;background:var(--green);color:#fff;padding:9px 18px;font-size:13px;border-radius:8px}
@media(max-width:600px){.dl-item{flex-wrap:wrap}.btn-dl{width:100%;text-align:center}}
/* 施工事例 */
.cases{max-width:960px;padding-top:48px;padding-bottom:24px}
.case-card{display:grid;grid-template-columns:.9fr 1.1fr;gap:0;border:1px solid var(--line);border-radius:14px;overflow:hidden;margin-bottom:28px;background:#fff}
.case-img{background:#f2f4f5;min-height:240px}
.case-img img{width:100%;height:100%;object-fit:cover}
.case-body{padding:24px 28px}
.case-tag{display:inline-block;background:var(--green-soft);color:var(--green);font-size:12px;font-weight:700;border-radius:999px;padding:3px 12px;margin-bottom:8px}
.case-body h2{font-size:19px;margin-bottom:12px}
.case-spec{width:100%;border-collapse:collapse;font-size:13.5px;margin-bottom:12px}
.case-spec th{background:var(--soft);text-align:left;padding:7px 12px;width:30%;border:1px solid var(--line);white-space:nowrap;font-weight:600}
.case-spec td{padding:7px 12px;border:1px solid var(--line)}
.case-body p{font-size:14px;color:var(--sub)}
@media(max-width:700px){.case-card{grid-template-columns:1fr}}
/* 施工の流れ（ステップ） */
.steps{max-width:820px;padding-top:48px;padding-bottom:24px}
.step{display:grid;grid-template-columns:56px 1fr;gap:0 22px;position:relative;padding-bottom:34px}
.step-no{width:56px;height:56px;border-radius:50%;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px;z-index:1}
.step-line{position:absolute;left:27px;top:56px;bottom:0;width:2px;background:var(--line)}
.step:last-child .step-line{display:none}
.step-body h2{font-size:18px;margin:14px 0 8px}
.step-body p{font-size:14.5px;color:var(--sub)}
.step-body img{max-width:340px;border-radius:10px;margin-top:12px}
/* 会社概要 */
.co-table th{width:26%;white-space:nowrap;background:var(--ink);color:#fff;text-align:left;padding:10px 14px}
.co-table td{border-bottom:1px solid #e3e8ec;padding:10px 14px}
/* 比較表 */
.compare .tbl-wrap table{min-width:640px}
.compare .tbl-wrap th:first-child,.compare .tbl-wrap td:first-child{position:sticky;left:0;background:var(--soft);font-weight:600;z-index:1}
.compare .tbl-wrap thead th:first-child{background:var(--ink)}
/* お知らせ一覧・記事 */
.news-link{display:flex;align-items:center;gap:14px;color:inherit}
.news-link .link{margin-left:auto;color:var(--green);font-weight:700}
.news-link:hover{background:var(--soft)}
.article time{color:#cbd5df}
.article-nav{margin-top:44px;padding-top:18px;border-top:1px solid var(--line)}
.article-nav a{color:var(--green);font-weight:700;font-size:14px}

/* ロゴ付きブランド */
.brand{display:flex;align-items:center;gap:10px}
.brand img{height:38px;width:auto;display:block}
/* 商品一覧のグループ区切り */
.pgroup{margin-bottom:40px}
.pgroup:last-child{margin-bottom:0}
.pgroup-label{display:flex;align-items:center;gap:10px;margin-bottom:16px;padding-top:4px;border-top:1px solid var(--line);padding-top:16px}
.pgroup-label .bar{width:22px}
.pgroup-label span:last-child{font-size:15px;font-weight:700;color:var(--sub);letter-spacing:.04em}
/* お知らせリンク */
a.news-item{color:inherit;text-decoration:none;display:flex;align-items:center;gap:14px}
a.news-item:hover{color:var(--green)}
a.news-item .more{margin-left:auto;color:var(--green);font-weight:700}
/* 商品ページ：写真をタイトル背景に */
.page-hero.has-bg{position:relative;overflow:hidden;color:#fff;padding:96px 0 64px}
.page-hero.has-bg .bg{position:absolute;inset:0;background-size:cover;background-position:center}
.page-hero.has-bg .shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(18,24,33,.88) 0%,rgba(18,24,33,.6) 55%,rgba(18,24,33,.35) 100%)}
.page-hero.has-bg .container{position:relative}
.page-hero.has-bg .crumbs,.page-hero.has-bg .crumbs a{color:rgba(255,255,255,.75)}
.page-hero.has-bg .lead{color:rgba(255,255,255,.9)}

/* 本文リンク: クリック可能と分かる見た目に */
.prose a{color:var(--green);font-weight:700;text-decoration:underline;text-underline-offset:3px}
.prose a:hover{color:#2f7f56}
.prose td a{display:inline-block;border:1.5px solid var(--green);border-radius:8px;padding:3px 14px;text-decoration:none}
.prose td a:hover{background:var(--green);color:#fff}
/* 連続画像の横並び */
.img-row{display:grid;gap:16px;margin:18px 0;align-items:start}
.img-row img{width:100%;height:auto;border-radius:8px}
@media(max-width:760px){.img-row{grid-template-columns:1fr !important}}
/* 表: {table: nowrap} 指定時は各セルを1行で表示 */
table.nowrap th,table.nowrap td{white-space:nowrap}

/* {cards}: 写真付きカードグリッド */
.pc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px;margin:18px 0}
.pc-card{background:#fff;border:1px solid #e5e7e9;border-radius:10px;padding:18px;text-align:center}
.pc-label{font-size:.82rem;color:#666;font-weight:700}
.pc-title{font-weight:800;font-size:1.05rem;margin:2px 0 10px}
.pc-img img{width:100%;height:auto;border-radius:6px}
.pc-desc{font-size:.88rem;color:#444;margin:10px 0 0;text-align:center}
.pc-specs{list-style:none;padding:0;margin:10px 0 0;text-align:left;font-size:.85rem;color:#444}
.pc-specs li{border-top:1px dashed #ddd;padding:6px 2px}
.pc-specs li:first-child{border-top:0}

/* 横並び画像のキャプション */
.img-row figure{margin:0}
figure.img-single{margin:18px 0}
figure.img-single img{max-width:100%;height:auto;border-radius:8px}
figure.img-single figcaption{font-size:.82rem;color:#666;margin-top:6px}
.img-row figcaption{font-size:.82rem;color:#666;text-align:center;margin-top:6px}

/* セクション見出しのリンク（見た目は通常見出し、ホバーで緑） */
.sec-label h2 a.sec-link{color:inherit;text-decoration:none}
.sec-label h2 a.sec-link:hover{color:var(--green);text-decoration:underline}

/* .prose内のボタンはリンク装飾を打ち消し（緑背景×白文字） */
.prose a.btn{color:#fff;text-decoration:none;font-weight:700}
.prose a.btn:hover{color:#fff;opacity:.85}
/* 枠線ボタン（緑バックでない）は文字も枠と同じ緑（2026-08-10） */
.prose a.btn-o2{color:var(--green)}
.prose a.btn-o2:hover{color:var(--green);opacity:.85}
/* 本文組み込み用 compare表・steps（2026-08-09追加） */
.tbl-wrap.cmp table{min-width:640px}
.tbl-wrap.cmp th:first-child,.tbl-wrap.cmp td:first-child{position:sticky;left:0;background:var(--soft);font-weight:600;z-index:1}
.tbl-wrap.cmp thead th:first-child{background:var(--ink)}
.tbl-wrap.cmp tr:nth-child(even) td:first-child{background:var(--soft)}
.steps-inline{max-width:none;padding-top:8px;padding-bottom:0;margin:18px 0}
.step-body h3{font-size:18px;margin:14px 0 8px}