/* B案「清澄」（seicho）— 株式会社aim の TOP のデザイン案。参考＝birusisu.co.jp（並び・書体の組み方・動きの種類と速さ・写真の切り方だけ）。
   白い地の真ん中に細い英字の大きな言葉・事業は縦に細長い写真の帯が並んで乗った物が伸びる・くすんだ青の大きな面に写真＋白いカードを積む。
   色＝くすんだ青（今のサイトのフッター #42587a）を土台に、葉の緑を差し色。書体＝LINE Seed JP（和文）と Outfit（細い英字・数字）。
   動きの本体は ASB の語彙（anim-* / fx-*）。ここに書く動きは、語彙に上げる候補（オープニングの幕・伸びる帯・地層の線）だけ＝案の名前に頼らないクラスで書く。 */

:root {
  --ink: #1e2935;
  --muted: #56616e;           /* 白の地に 6.1：1 */
  --blue: #42587a;            /* ベースの色（くすんだ青） */
  --blue-d: #2f4361;
  --blue-dd: #233249;
  --green: #4f8d61;
  --green-d: #3a7350;         /* 白の地に 5.4：1（小さい字の緑） */
  --green-l: #93c49e;
  --pale: #edf3f1;
  --pale-b: #eef2f6;
  --line: #dbe2e8;
  --ja: 'LINE Seed JP', 'Noto Sans JP', sans-serif;
  --en: 'Outfit', 'LINE Seed JP', sans-serif;
  --ease-o: cubic-bezier(.215, .61, .355, 1);      /* ease-out-cubic */
  --ease-x: cubic-bezier(.19, 1, .22, 1);          /* ease-out-expo */
  --ease-io: cubic-bezier(.77, 0, .175, 1);        /* ease-in-out-quart */
  --inner: min(1340px, calc(100% - 100px));
  --side: max(50px, calc((100% - 1340px) / 2));
  --r: 12px;
  --fx-backtop-ink: var(--blue-d);
  --fx-backtop-bg: #fff;
  --anim-settle-blur: 14px;
  --anim-settle-rot: -1.5deg;
}
@media (max-width: 767px) {
  :root { --inner: calc(100% - 40px); --side: 20px; --r: 8px; }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--ja); color: var(--ink); background: #fff; font-size: 15px; line-height: 1.9; letter-spacing: .04em; overflow-x: clip; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, p, figure, dl, dd { margin: 0; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.nw { display: inline-block; }
.wrap { width: var(--inner); margin: 0 auto; }
svg { display: block; }

/* ---------- 共通の部品 ---------- */
/* 2 つに割れたボタン（文字の札＋矢印の四角）。乗ると矢印が抜けて戻る */
.btn2 { display: inline-flex; align-items: stretch; gap: 2px; height: 60px; font-size: 15px; font-weight: 700; letter-spacing: .06em; }
.btn2-t { display: flex; align-items: center; padding: 0 34px; background: var(--blue-d); color: #fff; border-radius: 6px; transition: background .4s var(--ease-o); }
.btn2-i { position: relative; width: 60px; display: grid; place-items: center; background: var(--green); border-radius: 6px; overflow: hidden; }
.btn2-i svg { width: 18px; height: 18px; fill: none; stroke: #fff; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; transition: transform .6s var(--ease-x); }
.btn2-i svg path[d^="M3 11.5"] { fill: #fff; stroke: none; }
.btn2:hover .btn2-t { background: var(--blue-dd); }
.btn2:hover .btn2-i svg { animation: btn2-out .6s var(--ease-x); }
@keyframes btn2-out { 0% { transform: none; } 45% { transform: translateX(160%); } 46% { transform: translateX(-160%); } 100% { transform: none; } }
.btn2.is-sm { height: 48px; font-size: 14px; }
.btn2.is-sm .btn2-t { padding: 0 24px; }
.btn2.is-sm .btn2-i { width: 48px; }
.btn2.is-w .btn2-t { background: #fff; color: var(--blue-d); }
.btn2.is-w .btn2-i { background: var(--green-l); }
.btn2.is-w .btn2-i svg { stroke: var(--blue-dd); }
.btn2.is-w:hover .btn2-t { background: var(--pale); }
.btn-row { display: flex; justify-content: flex-end; margin-top: 48px; }

/* 角の四角い矢印 */
.sq-ar { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 6px; background: var(--pale-b); color: var(--blue-d); transition: background .4s var(--ease-o), color .4s var(--ease-o); }
.sq-ar svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; transition: transform .5s var(--ease-x); }
a:hover .sq-ar { background: var(--blue-d); color: #fff; }
a:hover .sq-ar svg { transform: translateX(3px); }

/* 区画の見出し：上の辺の角が丸い細い線の箱（左右の線は下へ消える）・緑の点＋英字の小見出し・大きな和文 */
.sec { padding: 150px 0; }
.sec-head { position: relative; padding: 40px 0 0; margin-bottom: 64px; }
.sec-head::before { content: ''; position: absolute; inset: 0 0 auto; height: 70px; border: 1px solid var(--line); border-bottom: 0; border-radius: 16px 16px 0 0;
  -webkit-mask-image: linear-gradient(#000 0, #000 20%, transparent 100%); mask-image: linear-gradient(#000 0, #000 20%, transparent 100%); }
.sec-head.is-plain { padding-top: 0; }
.sec-head.is-plain::before { display: none; }
.sh-en { display: flex; align-items: center; gap: 10px; font-family: var(--en); font-weight: 500; font-size: 15px; letter-spacing: .04em; color: var(--blue); }
.sh-en::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--green); }
.sh-en.is-w { color: #fff; }
.sh-en.is-w::before { background: var(--green-l); }
.sh-ja { margin-top: 14px; font-weight: 400; font-size: clamp(34px, 3.7vw, 54px); line-height: 1.35; letter-spacing: .05em; }
.sec-head .fx-rail-nav { position: absolute; right: 0; bottom: 4px; --fx-rail-btn: 48px; --fx-rail-ink: var(--blue-d); --fx-rail-line: var(--line); --fx-rail-bar-w: 120px; color: var(--blue-d); }
.sec-head .fx-rail-btn { border-radius: 6px; }

/* 写真の器（角が少し丸い・ダミーの印を角に置ける） */
.about-ph, .mc-ph, .break-ph, .rc-ph, .cta-ph, .sl-ph, .l3-ph { position: relative; overflow: hidden; }
.about-ph img, .mc-ph img, .break-ph img, .rc-ph img, .cta-ph img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- 0 オープニング（語彙に上げる候補＝写真が右から順に幕で入り、最後に全体が上へ抜ける） ---------- */
.opening { --op-delay: .2s; --op-step: .8s; --op-dur: .8s; --op-wait: .55s;
  --op-out: calc(var(--op-delay) + var(--op-step) * 3 + var(--op-dur) + var(--op-wait));
  position: fixed; inset: 0; z-index: 999; background: #fff; clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
  animation: op-out .8s var(--ease-io) var(--op-out) forwards; }
.op-items { position: absolute; inset: 0; }
.op-item { position: absolute; inset: 0; overflow: hidden; clip-path: polygon(100% 0, 100% 0, 100% 100%, 100% 100%);
  animation: op-in var(--op-dur) var(--ease-io) forwards; animation-delay: calc(var(--op-delay) + var(--op-step) * var(--i, 0)); }
.op-item:nth-child(2) { --i: 1; } .op-item:nth-child(3) { --i: 2; } .op-item:nth-child(4) { --i: 3; }
.op-item img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.15); animation: op-zoom var(--op-dur) var(--ease-io) forwards; animation-delay: inherit; }
.op-item::before { content: ''; position: absolute; inset: auto 0 0; height: 40%; z-index: 1; background: linear-gradient(0deg, rgba(var(--op-c, 47, 67, 97), .92), rgba(var(--op-c, 47, 67, 97), 0)); }
.op-item:nth-child(2)::before { --op-c: 52, 88, 104; } .op-item:nth-child(3)::before { --op-c: 55, 103, 101; } .op-item:nth-child(4)::before { --op-c: 58, 115, 86; }
.op-title { position: absolute; z-index: 2; left: var(--side); bottom: 64px; color: #fff; }
.op-en { display: block; font-family: var(--en); font-weight: 500; font-size: 16px; letter-spacing: .04em; opacity: .8; }
.op-ja { display: block; margin-top: 18px; font-size: clamp(30px, 3.4vw, 50px); letter-spacing: .06em; line-height: 1.3; }
.op-title > * { opacity: 0; transform: translateY(24px); animation: op-t .9s var(--ease-x) forwards; animation-delay: calc(var(--op-delay) + var(--op-step) * var(--i, 0) + .35s); }
.op-title .op-ja { animation-delay: calc(var(--op-delay) + var(--op-step) * var(--i, 0) + .45s); }
.op-skip { position: absolute; z-index: 3; right: var(--side); bottom: 64px; font-family: var(--en); font-size: 13px; letter-spacing: .14em; color: #fff; padding: 10px 16px; border: 1px solid rgba(255,255,255,.5); border-radius: 999px; }
@keyframes op-in { to { clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%); } }
@keyframes op-zoom { to { transform: scale(1); } }
@keyframes op-t { to { opacity: 1; transform: none; } }
@keyframes op-out { to { clip-path: polygon(0 100%, 100% 100%, 100% 100%, 0 100%); visibility: hidden; } }
.opening.is-skip { animation: op-out .7s var(--ease-io) forwards; }
.opening.is-done, html.is-shot .opening { display: none; }
@media (prefers-reduced-motion: reduce) { .opening { display: none; } }

/* ---------- ヘッダー ---------- */
.site-header { position: sticky; top: 0; z-index: 60; background: rgba(255,255,255,.94); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); transition: box-shadow .4s; }
.sh-inner { width: var(--inner); margin: 0 auto; height: 120px; display: flex; align-items: center; gap: 40px; position: relative; transition: height .4s var(--ease-o); }
.sh-inner::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 20px; border: 1px solid var(--line); border-top: 0; border-radius: 0 0 16px 16px;
  -webkit-mask-image: linear-gradient(to top, #000 30%, transparent); mask-image: linear-gradient(to top, #000 30%, transparent); }
.site-header.is-scrolled .sh-inner { height: 84px; }
.site-header.is-scrolled { box-shadow: 0 6px 24px rgba(30, 41, 53, .06); }
.brand img { height: 50px; width: auto; }
.site-header.is-scrolled .brand img { height: 42px; }
.gnav { display: flex; gap: 38px; margin: 0 auto; font-size: 15px; letter-spacing: .06em; }
.sh-right { display: flex; align-items: center; gap: 22px; }
.sh-tel { font-family: var(--en); font-size: 20px; font-weight: 400; letter-spacing: .04em; color: var(--blue-d); white-space: nowrap; }
.sh-tel span { font-size: 12px; margin-right: 6px; color: var(--muted); }
.sh-sp { display: none; gap: 3px; margin-left: auto; }
.sq-btn { display: grid; place-items: center; height: 44px; min-width: 44px; padding: 0 12px; border-radius: 6px; background: var(--blue-d); color: #fff; font-size: 13px; font-weight: 700; }
.sq-btn.is-pale { background: var(--green); }
.sq-btn svg { width: 17px; height: 17px; fill: #fff; }
.menu-btn { display: flex; align-items: center; gap: 8px; position: relative; padding-left: 38px; }
.menu-btn i { position: absolute; left: 13px; width: 16px; height: 1.5px; background: #fff; }
.menu-btn i:first-child { top: 18px; } .menu-btn i:nth-child(2) { top: 25px; }
@media (max-width: 1180px) { .sh-tel { display: none; } .gnav { gap: 26px; } }
@media (max-width: 1024px) {
  .gnav, .sh-right { display: none; }
  .sh-sp { display: flex; }
  .sh-inner { height: 80px; }
  .brand img { height: 38px; }
  .site-header.is-scrolled .sh-inner { height: 68px; }
  .site-header.is-scrolled .brand img { height: 34px; }
}

/* ---------- 1 メインビジュアル ---------- */
.mv { position: relative; padding: 150px 0 140px; text-align: center; overflow: hidden; }
.mv-grid { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.mv-inner { position: relative; width: var(--inner); margin: 0 auto; }
.mv-dm { height: 20px; margin-bottom: 18px; }
.mv-copy { font-family: var(--en); font-weight: 300; font-size: clamp(60px, 9.4vw, 140px); line-height: 1; letter-spacing: .02em; }
.mv-w1 { color: var(--blue); display: inline-block; }
.mv-w2 { color: var(--green); display: inline-block; }
.mv-amp { color: #b8c3cc; font-weight: 200; display: inline-block; }
.mv-lead { margin-top: 30px; font-size: clamp(20px, 2vw, 28px); letter-spacing: .08em; line-height: 1.7; }
.mv-lead em { font-style: normal; color: var(--blue); }
.mv-lead em.is-g { color: var(--green-d); }
.mv-txt { margin-top: 34px; font-size: 15px; line-height: 2.2; color: var(--muted); }

/* ---------- 2 事業内容：伸びる帯（語彙に上げる候補＝器 .slats・帯 .slat・開いた帯 .is-open・伸びる割合 --slat-grow） ---------- */
.biz { padding: 0; }
.slats { --slat-grow: 3.6; display: flex; aspect-ratio: 1440 / 660; max-height: 760px; width: 100%; }
.slat { flex: 1 1 0; min-width: 0; transition: flex-grow .7s var(--ease-o); }
.slat.is-open { flex-grow: var(--slat-grow); }
.slat > a { position: relative; display: block; height: 100%; overflow: hidden; color: #fff; border-radius: 10px 10px 0 0; transition: border-radius .5s; }
.slat.is-open > a { border-radius: 10px; }
.sl-ph { position: absolute; inset: 0; }
.sl-ph img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease-o); }
.slat.is-open .sl-ph img { transform: scale(1.04); }
.slat > a::after { content: ''; position: absolute; inset: 0; background: rgba(24, 34, 48, .26); transition: background .6s; pointer-events: none; }
.slat.is-open > a::after { background: rgba(24, 34, 48, .06); }
.slat > a::before { content: ''; position: absolute; inset: auto 0 0; z-index: 1; height: 55%; pointer-events: none;
  background: linear-gradient(0deg, rgb(var(--sl-c)) 0%, rgba(var(--sl-c), 0) 100%); transition: height .7s var(--ease-o); }
.slat.is-open > a::before { height: 78%; }
.slat:nth-child(1) { --sl-c: 47, 67, 97; } .slat:nth-child(2) { --sl-c: 48, 74, 98; } .slat:nth-child(3) { --sl-c: 49, 82, 98; } .slat:nth-child(4) { --sl-c: 50, 90, 98; }
.slat:nth-child(5) { --sl-c: 51, 97, 96; } .slat:nth-child(6) { --sl-c: 52, 103, 92; } .slat:nth-child(7) { --sl-c: 54, 108, 87; } .slat:nth-child(8) { --sl-c: 57, 113, 82; }
.sl-body { position: absolute; z-index: 2; left: 0; right: 0; bottom: 0; padding: 0 clamp(18px, 2vw, 34px) 46px; display: flex; flex-direction: column; align-items: flex-start; }
.sl-no { font-family: var(--en); font-size: 13px; letter-spacing: .06em; opacity: .85; white-space: nowrap; }
.sl-name { display: block; margin-top: 10px; font-size: clamp(17px, 1.45vw, 21px); line-height: 1.5; letter-spacing: .08em; padding-bottom: 6px; border-bottom: 1px solid rgba(255,255,255,.6); }
.sl-txt { display: block; max-width: 30em; margin-top: 16px; font-size: 14px; line-height: 1.9; opacity: 0; max-height: 0; overflow: hidden; transform: translateY(10px); transition: opacity .5s, transform .6s var(--ease-o), max-height .6s; }
.slat.is-open .sl-txt { opacity: .95; max-height: 8em; transform: none; transition-delay: .2s; }
.slat:not(.is-open) .sl-name br { display: none; }
.slat:not(.is-open) .sl-name { font-size: clamp(14px, 1.08vw, 16px); }
.sl-ar { position: absolute; z-index: 2; right: 0; bottom: 0; width: 48px; height: 48px; display: grid; place-items: center; background: #fff; color: var(--blue-d); border-radius: 8px 0 0 0; }
.sl-ar svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; transition: transform .5s var(--ease-x); }
.slat > a:hover .sl-ar svg { transform: translateX(3px); }
@media (max-width: 1024px) {
  .slats { display: grid; grid-template-columns: repeat(4, 1fr); aspect-ratio: auto; max-height: none; gap: 2px; }
  .slat > a { aspect-ratio: 3 / 4; border-radius: 6px; height: auto; }
  .slat > a::before { height: 75%; }
  .slat > a::after { background: rgba(24, 34, 48, .1); }
  .sl-name, .slat:not(.is-open) .sl-name { font-size: 16px; }
  .slat:not(.is-open) .sl-name br { display: inline; }
  .sl-txt { display: none; }
  .sl-body { padding-bottom: 54px; }
}
@media (max-width: 767px) {
  .slats { grid-template-columns: 1fr 1fr; }
  .slat > a { aspect-ratio: 4 / 5; }
  .sl-body { padding: 0 14px 52px; }
  .sl-name, .slat:not(.is-open) .sl-name { font-size: 14.5px; letter-spacing: .04em; }
  .sl-no { font-size: 11px; }
  .sl-ar { width: 40px; height: 40px; }
}

/* ---------- 3 新着情報（横の列） ---------- */
.news { padding-bottom: 130px; }
.news-rail { display: flex; gap: 24px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; padding: 4px var(--side) 10px; scroll-padding: 0 var(--side); }
.news-rail::-webkit-scrollbar { display: none; }
.nc { flex: 0 0 clamp(270px, 24vw, 330px); scroll-snap-align: start; }
.nc a { position: relative; display: flex; flex-direction: column; align-items: flex-start; height: 100%; min-height: 250px; padding: 30px 30px 84px; border: 1px solid var(--line); border-radius: var(--r); background: #fff; transition: border-color .4s, box-shadow .4s; }
.nc a:hover { border-color: #b9c6d2; box-shadow: 0 10px 30px rgba(47, 67, 97, .08); }
.nc-tag { font-size: 11px; font-weight: 700; letter-spacing: .08em; color: #fff; background: var(--green-d); padding: 3px 9px 2px; border-radius: 3px; }
.nc time { margin-top: 14px; font-family: var(--en); font-size: 14px; color: var(--muted); letter-spacing: .04em; }
.nc-t { margin-top: 10px; font-size: 16.5px; line-height: 1.75; color: var(--blue-d); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 6px; text-decoration-color: rgba(47, 67, 97, .35); }
.nc-ar { position: absolute; right: 0; bottom: 0; width: 46px; height: 46px; display: grid; place-items: center; background: var(--pale-b); color: var(--blue-d); border-radius: 8px 0 var(--r) 0; transition: background .4s, color .4s; }
.nc-ar svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.nc a:hover .nc-ar { background: var(--blue-d); color: #fff; }

/* ---------- 4 理念 ---------- */
.about { padding-top: 40px; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 4.2vw, 64px); align-items: start; }
.about-ph { aspect-ratio: 663 / 820; border-radius: var(--r); }
.about-body { padding-top: 40px; }
.about-lead { font-size: clamp(20px, 1.95vw, 28px); line-height: 2.05; letter-spacing: .06em; }
.about-txt { margin-top: 34px; color: var(--muted); }
.about-sign { margin-top: 18px; font-size: 14px; letter-spacing: .14em; color: var(--blue-d); }
.links3 { margin-top: 56px; display: grid; gap: 14px; }
.links3 a { position: relative; display: grid; grid-template-columns: 140px 1fr auto; align-items: center; gap: 0 28px; padding: 22px 26px 22px 22px; border: 1px solid var(--line); border-radius: var(--r); transition: border-color .4s; }
.links3 a:hover { border-color: #b9c6d2; }
.l3-ph { grid-row: 1 / 3; width: 140px; aspect-ratio: 7 / 4; border-radius: 6px; }
.l3-ph img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease-o); }
.links3 a:hover .l3-ph img { transform: scale(1.06); }
.l3-no { align-self: end; font-family: var(--en); font-size: 13px; color: var(--muted); }
.l3-t { align-self: start; font-size: 19px; color: var(--blue-d); text-decoration: underline; text-underline-offset: 6px; text-decoration-thickness: 1px; text-decoration-color: rgba(47, 67, 97, .35); }
.links3 .sq-ar { grid-column: 3; grid-row: 1 / 3; }

/* ---------- 5 地中熱の特集（くすんだ青の大きな面・この画面のグラデーションはここ 1 か所） ---------- */
.feature { padding: 0 15px; }
.ft-panel { border-radius: 16px; background: linear-gradient(180deg, #42587a 0%, #30445f 100%); color: #fff; display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 4.4vw, 64px); padding: 120px max(35px, calc((100% - 1340px) / 2)); }
.ft-left { position: relative; }
.ft-sticky { position: sticky; top: 140px; text-align: center; display: flex; flex-direction: column; align-items: center; padding: 0 clamp(0px, 2vw, 40px); }
.ft-sticky .sh-en { justify-content: center; }
.ft-title { margin-top: 16px; font-weight: 400; font-size: clamp(32px, 3.3vw, 48px); letter-spacing: .06em; line-height: 1.4; }
.ft-num { margin-top: 44px; display: grid; grid-template-columns: auto auto; align-items: end; justify-content: center; column-gap: 14px; }
.ft-num-l:first-child { grid-column: 1 / 3; font-size: 15px; letter-spacing: .14em; opacity: .85; }
.ft-num-v { font-family: var(--en); font-weight: 200; font-size: clamp(110px, 12vw, 176px); line-height: 1; letter-spacing: -.01em; display: flex; align-items: baseline; }
.ft-num-v small { font-size: .36em; font-weight: 300; margin-left: .06em; }
.ft-num-l:last-child { font-size: 26px; padding-bottom: .9em; letter-spacing: .1em; }
.ft-note { margin-top: 10px; font-size: 13px; opacity: .8; }
.ft-txt { margin-top: 30px; max-width: 30em; font-size: 15px; line-height: 2.05; text-align: left; opacity: .95; }
.ft-sticky .btn2 { margin-top: 40px; }
.ft-right { display: grid; gap: 56px; }
.mc { border-radius: var(--r); overflow: hidden; background: #fff; color: var(--ink); }
.mc-ph { aspect-ratio: 663 / 360; }
.mc-body { padding: 54px clamp(28px, 4vw, 70px) 60px; text-align: center; }
.mc-no { font-family: var(--en); font-size: 14px; color: var(--green-d); letter-spacing: .04em; }
.mc-t { margin-top: 10px; font-weight: 400; font-size: clamp(26px, 2.4vw, 34px); color: var(--blue-d); letter-spacing: .06em; line-height: 1.4; }
.mc-txt { margin-top: 22px; text-align: left; font-size: 15px; line-height: 2; }
.ft-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.ft-tags li { padding: 9px 18px 8px; border: 1px solid rgba(255,255,255,.45); border-radius: 999px; font-size: 14px; letter-spacing: .06em; }

/* ---------- 6 写真の区切り ---------- */
.break { padding: 130px 15px 0; }
.break-ph { height: min(680px, 46vw); border-radius: 16px; }

/* ---------- 7 数字 ---------- */
.num-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.num-grid li { padding: 44px 30px 46px; text-align: center; position: relative; }
.num-grid li + li::before { content: ''; position: absolute; left: 0; top: 32px; bottom: 32px; width: 1px; background: var(--line); }
.n-l { font-size: 14px; line-height: 1.6; color: var(--muted); letter-spacing: .1em; min-height: 3.2em; display: flex; align-items: center; justify-content: center; }
.n-v { margin-top: 14px; font-family: var(--en); font-weight: 200; font-size: clamp(64px, 6.8vw, 100px); line-height: 1; color: var(--blue-d); display: flex; align-items: baseline; justify-content: center; gap: 6px; }
.n-v small { font-family: var(--ja); font-weight: 400; font-size: 18px; letter-spacing: .08em; color: var(--ink); }
.n-s { margin-top: 12px; font-size: 13px; color: var(--muted); }
.num-makers { margin-top: 30px; text-align: center; font-size: 14px; color: var(--muted); letter-spacing: .06em; }

/* ---------- 8 施工実績 ---------- */
.works { padding-top: 40px; }
.work-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.wk a { position: relative; display: flex; flex-direction: column; height: 100%; min-height: 260px; padding: 30px 28px 84px; border: 1px solid var(--line); border-radius: var(--r); background: #fff; transition: border-color .4s, box-shadow .4s; }
.wk a:hover { border-color: #b9c6d2; box-shadow: 0 10px 30px rgba(47, 67, 97, .08); }
.wk-cat { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; letter-spacing: .1em; color: var(--muted); }
.wk-cat::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--c, var(--blue)); }
.wk-cat.is-sun { --c: #c2962f; } .wk-cat.is-air { --c: var(--blue); } .wk-cat.is-elec { --c: #7d8fb0; } .wk-cat.is-geo { --c: var(--green); }
.wk-term { margin-top: 20px; font-family: var(--en); font-weight: 300; font-size: 32px; line-height: 1.1; color: var(--blue-d); letter-spacing: .02em; }
.wk-name { margin-top: 16px; font-size: 16.5px; line-height: 1.7; }
.wk-what { margin-top: 8px; font-size: 13.5px; line-height: 1.75; color: var(--muted); }
.wk .sq-ar { position: absolute; right: 0; bottom: 0; border-radius: 8px 0 var(--r) 0; }

/* ---------- 9 採用情報 ---------- */
.recruit { background: var(--pale); border-radius: 16px; margin: 0 15px; padding: 130px 0; }
.rc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 5vw, 80px); align-items: center; }
.rc-lead { font-size: clamp(22px, 2.2vw, 31px); line-height: 1.8; letter-spacing: .06em; }
.rc-txt { margin-top: 26px; color: var(--muted); max-width: 34em; }
.rc-jobs { margin: 30px 0 42px; display: flex; flex-wrap: wrap; gap: 8px; }
.rc-jobs li { display: inline-flex; align-items: center; gap: 8px; padding: 7px 16px 6px; background: #fff; border-radius: 999px; font-size: 13.5px; letter-spacing: .06em; }
.rc-jobs li::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--green); }
.rc-ph { aspect-ratio: 5 / 6; border-radius: var(--r); }

/* ---------- 10 お問い合わせ ---------- */
.cta { padding: 150px 15px 0; }
.cta-panel { position: relative; background: var(--pale-b); border-radius: 16px 16px 0 0; overflow: hidden; text-align: center; padding-top: 120px; }
.cta-big { font-family: var(--en); font-weight: 200; font-size: clamp(54px, 8.4vw, 124px); line-height: 1; letter-spacing: .01em; }
.cta-big .c1 { color: var(--green-d); font-weight: 300; }
.cta-big .c2 { color: var(--blue-d); }
.cta-sub { margin-top: 22px; font-size: clamp(15px, 1.4vw, 19px); letter-spacing: .14em; color: var(--blue-d); }
.cta-ph { margin-top: 70px; height: 470px; }
.cta-ph img { height: 130%; filter: grayscale(1) contrast(1.05) brightness(1.08); }
.cta-ph::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, var(--pale-b) 0%, rgba(238, 242, 246, 0) 38%), rgba(66, 88, 122, .55); mix-blend-mode: normal; pointer-events: none; }
.cta-ph::before { content: ''; position: absolute; inset: 0; z-index: 1; background: rgba(79, 141, 97, .22); mix-blend-mode: multiply; pointer-events: none; }
.cta-box { position: absolute; left: 50%; bottom: 0; transform: translateX(-50%); width: min(560px, calc(100% - 40px)); z-index: 3; }
.cta-form { display: flex; gap: 2px; height: 68px; font-size: 17px; font-weight: 700; letter-spacing: .08em; color: var(--blue-d); }
.cta-form > span:first-child { flex: 1; display: grid; place-items: center; background: #fff; border-radius: 8px 0 0 0; transition: background .4s; }
.cta-form-i { width: 68px; display: grid; place-items: center; background: #fff; border-radius: 0 8px 0 0; transition: background .4s; }
.cta-form-i svg { width: 19px; height: 19px; fill: var(--green); transition: fill .4s; }
.cta-form:hover > span:first-child { background: var(--pale); }
.cta-form:hover .cta-form-i { background: var(--green); }
.cta-form:hover .cta-form-i svg { fill: #fff; }
.cta-tel { margin-top: 2px; background: #fff; padding: 26px 20px 30px; }
.ct-num { display: flex; align-items: center; justify-content: center; gap: 10px; font-family: var(--en); font-weight: 400; font-size: clamp(32px, 3.4vw, 44px); line-height: 1; color: var(--blue-d); letter-spacing: .03em; }
.ct-num svg { width: .7em; height: .7em; fill: var(--green); }
.ct-sub { margin-top: 10px; font-size: 13px; color: var(--muted); letter-spacing: .06em; }

/* ---------- フッター ---------- */
.site-footer { margin: 0 15px 15px; background: var(--blue-dd); color: #fff; border-radius: 0 0 16px 16px; }
.sf-inner { display: grid; grid-template-columns: 1fr 1.05fr; gap: 50px; padding: 80px max(35px, calc((100% - 1340px) / 2)) 46px; }
.sf-logo { width: 160px; height: auto; }
.sf-name { margin-top: 28px; font-size: 15px; letter-spacing: .08em; }
.sf-offices { margin-top: 20px; display: grid; gap: 14px; }
.sf-offices dt { font-size: 12.5px; color: var(--green-l); letter-spacing: .12em; }
.sf-offices dd { font-size: 13px; line-height: 1.8; opacity: .86; }
.sf-hours { margin-top: 18px; font-size: 13px; opacity: .86; }
.sf-right { display: flex; flex-direction: column; justify-content: space-between; gap: 50px; }
.sf-nav { display: grid; grid-template-columns: .8fr 1.5fr .9fr; gap: 24px; }
.sf-nav div { display: flex; flex-direction: column; gap: 10px; }
.sf-nav a { font-size: 13px; opacity: .78; }
.sf-nav a.is-h { font-size: 16px; opacity: 1; margin-bottom: 4px; text-decoration: underline; text-underline-offset: 6px; text-decoration-thickness: 1px; text-decoration-color: rgba(255,255,255,.35); }
.sf-nav a:hover { opacity: 1; }
.sf-bottom { display: flex; align-items: center; gap: 28px; font-size: 13px; }
.sf-bottom a { opacity: .85; text-decoration: underline; text-underline-offset: 4px; }
.sf-bottom small { margin-left: auto; font-family: var(--en); font-size: 12.5px; opacity: .7; letter-spacing: .06em; }

/* ---------- 狭い画面 ---------- */
@media (max-width: 1024px) {
  .sec { padding: 110px 0; }
  .about-grid, .rc-grid, .ft-panel, .sf-inner { grid-template-columns: 1fr; }
  .about-ph { aspect-ratio: 16 / 11; }
  .about-body { padding-top: 0; }
  .ft-sticky { position: static; }
  .work-grid { grid-template-columns: repeat(2, 1fr); }
  .num-grid { grid-template-columns: repeat(2, 1fr); }
  .num-grid li:nth-child(3)::before { display: none; }
  .num-grid li:nth-child(n+3) { border-top: 1px solid var(--line); }
  .rc-ph { aspect-ratio: 16 / 11; order: -1; }
}
@media (max-width: 767px) {
  body { font-size: 14.5px; }
  .sec { padding: 84px 0; }
  .sec-head { margin-bottom: 40px; padding-top: 28px; }
  .sec-head::before { height: 50px; border-radius: 12px 12px 0 0; }
  .sec-head .fx-rail-nav { display: none; }
  .sh-en { font-size: 13px; }
  .mv { padding: 96px 0 84px; }
  .mv-copy { font-size: clamp(54px, 17vw, 80px); line-height: 1.04; }
  .mv-amp { display: none; }
  .mv-w2 { display: block; }
  .mv-lead { margin-top: 24px; font-size: 19px; }
  .mv-txt { font-size: 13.5px; line-height: 2.1; }
  .mv-txt br { display: none; }
  .news-rail { gap: 14px; }
  .nc { flex-basis: 78vw; }
  .about { padding-top: 10px; }
  .about-lead { font-size: 18px; line-height: 2; }
  .links3 a { grid-template-columns: 96px 1fr auto; gap: 0 16px; padding: 14px 16px 14px 14px; }
  .l3-ph { width: 96px; }
  .l3-t { font-size: 16px; }
  .links3 .sq-ar { width: 40px; height: 40px; }
  .feature, .break, .cta { padding-left: 8px; padding-right: 8px; }
  .recruit { margin: 0 8px; padding: 84px 0; }
  .site-footer { margin: 0 8px 8px; }
  .ft-panel { padding: 80px 20px; border-radius: 12px; }
  .ft-num-v { font-size: 116px; }
  .mc-body { padding: 36px 22px 40px; }
  .mc-t { font-size: 24px; }
  .break { padding-top: 84px; }
  .break-ph { height: 64vw; border-radius: 12px; }
  .num-grid li { padding: 30px 10px 32px; }
  .n-v { font-size: 56px; }
  .n-v small { font-size: 14px; }
  .n-l { font-size: 12.5px; }
  .work-grid { grid-template-columns: 1fr; gap: 12px; }
  .wk a { min-height: 0; padding: 24px 22px 70px; }
  .wk-term { font-size: 26px; margin-top: 12px; }
  .rc-lead { font-size: 20px; }
  .btn-row { justify-content: center; }
  .btn2 { height: 54px; font-size: 14px; }
  .btn2-t { padding: 0 24px; }
  .btn2-i { width: 54px; }
  .cta { padding-top: 84px; }
  .cta-panel { padding-top: 80px; border-radius: 12px 12px 0 0; }
  .cta-big { font-size: 15vw; }
  .cta-big .c2 { display: block; }
  .cta-sub { font-size: 13px; letter-spacing: .08em; }
  .cta-ph { height: 400px; margin-top: 50px; }
  .cta-form { height: 60px; font-size: 15px; }
  .cta-form-i { width: 60px; }
  .ct-num { font-size: 32px; }
  .ct-sub { font-size: 12px; }
  .sf-inner { padding: 60px 22px 34px; gap: 40px; }
  .sf-nav { grid-template-columns: 1fr 1fr; }
  .sf-nav div:nth-child(2) { grid-row: span 2; }
  .sf-bottom { flex-wrap: wrap; gap: 14px; }
  .sf-bottom small { margin-left: 0; width: 100%; }
  .op-title, .op-skip { bottom: 40px; }
  .op-skip { bottom: auto; top: 20px; }
}

/* 撮影（?shot=1）＝1 枚の長い絵：貼り付く見出しは流れの中に・オープニングは出さない */
html.is-shot .ft-sticky { position: static; }
html.is-shot .site-header { position: relative; }

/* ---------- 直し（1 回目の目視） ---------- */
/* 閉じた帯は名前を縦書きで（JS が .sl-v を足す）・開いた帯は横書きの名前と説明 */
.sl-v { position: absolute; z-index: 2; top: 76px; left: 50%; transform: translateX(-50%); writing-mode: vertical-rl; font-size: clamp(15px, 1.25vw, 19px); letter-spacing: .22em; line-height: 1.2; white-space: nowrap; color: #fff; transition: opacity .35s; text-shadow: 0 1px 12px rgba(20, 30, 45, .25); }
.sl-vn { position: absolute; z-index: 2; top: 28px; left: 0; right: 0; text-align: center; font-family: var(--en); font-size: 14px; font-weight: 300; letter-spacing: .08em; color: #fff; opacity: .9; transition: opacity .35s; }
.slat.is-open .sl-v, .slat.is-open .sl-vn { opacity: 0; }
@media (min-width: 1025px) {
  .slat .sl-body { opacity: 0; transform: translateY(14px); transition: opacity .3s, transform .5s var(--ease-o); width: max(100%, 26vw); }
  .slat.is-open .sl-body { opacity: 1; transform: none; transition: opacity .5s .3s, transform .7s .3s var(--ease-o); width: 100%; }
}
@media (max-width: 1024px) { .sl-v, .sl-vn { display: none; } }
/* フッターの地＝今のサイトのフッターの色（ロゴの白抜きの地と同じ） */
.site-footer { background: var(--blue); }
@media (max-width: 767px) {
  .menu-btn { white-space: nowrap; padding-right: 14px; }
  .about-lead br { display: none; }
  .wk a { padding: 20px 64px 22px 20px; }
  .wk-term { font-size: 22px; margin-top: 8px; }
  .wk-name { margin-top: 8px; font-size: 15.5px; }
  .wk .sq-ar { top: 50%; bottom: auto; right: 14px; transform: translateY(-50%); width: 38px; height: 38px; border-radius: 6px; }
}
.about-ph img { transform: scale(1.05); transform-origin: 15% 30%; }  /* 写真の右下の端に白い継ぎ目がある＝少し寄せて切る */
.sl-v { top: 104px; text-orientation: upright; letter-spacing: .14em; }
.sl-vn { top: 56px; }
@media (max-width: 767px) { .mv-amp { display: block; font-size: .42em; line-height: 1.2; margin: .1em 0; } }