/* ============================================================
   株式会社ソーコワークス — 倉庫建築
   鉄と影。太い横線と、数字を大きく見せる工業的な組み方。
   ============================================================ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0B0B0C;          /* 素地 */
  --bg2:#111214;         /* 一段明るい面 */
  --bg3:#17181B;         /* カード */
  --ink:#F2F2F0;
  --body:#9A9C9F;
  --muted:#6C6E72;
  --line:rgba(255,255,255,.12);
  --line2:rgba(255,255,255,.06);
  --acc:#D8531F;         /* 錆びた赤。差し色はここだけ */
  --acc-lt:#F0713C;
  --jp:"Noto Sans JP","Hiragino Sans",sans-serif;
  --en:"Oswald","Noto Sans JP",sans-serif;
  --gut:clamp(22px,5vw,80px);
  --wrap:1280px;
  --nav-h:76px;
  --e:cubic-bezier(.22,.7,.2,1);
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--body);font-family:var(--jp);font-weight:400;
  line-height:2;letter-spacing:.04em;font-feature-settings:"palt" 1;
  overflow-x:hidden;-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{list-style:none}
::selection{background:var(--acc);color:#fff}
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gut)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;z-index:200;background:#fff;color:#000;padding:10px 16px}
.ctr{text-align:center;margin-top:clamp(40px,6vh,64px)}

/* ── 見出しの型：巨大な英字を薄く敷き、和文を重ねる ── */
.hd{position:relative;margin-bottom:clamp(40px,6vh,68px)}
.hd--ctr{text-align:center}
.hd__en{display:block;font-family:var(--en);font-weight:600;
  font-size:clamp(3.2rem,10vw,7.5rem);line-height:.86;letter-spacing:.02em;
  color:rgba(255,255,255,.07)}
.hd__jp{margin-top:-.42em;font-size:clamp(1.05rem,2.4vw,1.6rem);font-weight:700;
  letter-spacing:.22em;color:var(--ink)}
.hd__jp::before{content:"";display:inline-block;width:26px;height:2px;background:var(--acc);
  vertical-align:.34em;margin-right:14px}
.hd--ctr .hd__jp::before{display:none}

.lb{font-family:var(--en);font-weight:500;font-size:clamp(11px,1vw,13px);letter-spacing:.3em;
  color:var(--acc-lt);text-transform:uppercase;display:flex;align-items:center;gap:12px}
.lb::before{content:"";width:clamp(20px,3vw,40px);height:1px;background:var(--acc)}

/* ── ボタン ── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:14px;
  padding:16px 34px;font-size:13.5px;font-weight:500;letter-spacing:.1em;
  border:1px solid var(--line);color:var(--ink);position:relative;overflow:hidden;
  transition:color .4s var(--e),border-color .4s var(--e)}
.btn svg{width:15px;height:15px;flex:none;transition:transform .4s var(--e)}
.btn::before{content:"";position:absolute;inset:0;z-index:-1;background:var(--acc);
  transform:translateY(101%);transition:transform .45s var(--e)}
.btn:hover::before{transform:translateY(0)}
.btn:hover{border-color:var(--acc);color:#fff}
.btn:hover svg{transform:translateX(6px)}
.btn--fill{background:var(--acc);border-color:var(--acc);color:#fff}
.btn--fill::before{background:var(--ink)}
.btn--fill:hover{color:var(--bg);border-color:var(--ink)}

/* ══ NAV ══ */
.nav{position:fixed;inset:0 0 auto;z-index:100;transition:background .45s var(--e),
  border-color .45s var(--e),transform .45s var(--e);border-bottom:1px solid transparent}
.nav.solid{background:rgba(11,11,12,.9);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line2)}
.nav.hide{transform:translateY(-102%)}
.nav__row{display:flex;align-items:center;gap:clamp(14px,2vw,30px);height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:11px;flex:none;margin-right:auto}
.brand__mk{display:block;width:30px;height:30px;color:var(--acc);flex:none}
.brand__mk svg{width:100%;height:100%}
.brand__t b{display:block;font-family:var(--en);font-weight:600;font-size:16px;letter-spacing:.14em;
  color:var(--ink);line-height:1.1}
.brand__t i{display:block;margin-top:3px;font-style:normal;font-size:9.5px;letter-spacing:.14em;
  color:var(--muted)}
.nav__links{display:flex;gap:clamp(12px,1.6vw,26px)}
.nav__links a{font-size:12.5px;letter-spacing:.08em;color:var(--body);position:relative;padding:6px 0;
  transition:color .35s var(--e)}
.nav__links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--acc);
  transition:width .4s var(--e)}
.nav__links a:hover{color:var(--ink)}
.nav__links a:hover::after{width:100%}
.nav__tel{display:flex;align-items:center;gap:9px;flex:none;color:var(--ink)}
.nav__tel svg{width:17px;height:17px;color:var(--acc)}
.nav__tel b{display:block;font-family:var(--en);font-size:19px;letter-spacing:.04em;line-height:1.1}
.nav__tel i{display:block;font-style:normal;font-size:9.5px;letter-spacing:.06em;color:var(--muted)}
.nav__cta{flex:none;padding:12px 22px;font-size:12px}
.burger{display:none;width:34px;height:24px;position:relative;flex:none}
.burger span{position:absolute;left:0;width:100%;height:1.5px;background:var(--ink);transition:.4s var(--e)}
.burger span:nth-child(1){top:7px}
.burger span:nth-child(2){bottom:7px}
.burger.on span:nth-child(1){top:11px;transform:rotate(45deg)}
.burger.on span:nth-child(2){bottom:11px;transform:rotate(-45deg)}
@media(max-width:1120px){.nav__links,.nav__cta{display:none}.burger{display:block}}
@media(max-width:600px){.nav__tel i{display:none}.nav__tel b{font-size:16px}}

.mmenu{position:fixed;inset:0;z-index:95;background:var(--bg2);display:flex;flex-direction:column;
  justify-content:center;padding:0 var(--gut);opacity:0;visibility:hidden;transition:.45s var(--e)}
.mmenu.on{opacity:1;visibility:visible}
.mmenu nav{display:grid;gap:4px}
.mmenu a{font-family:var(--en);font-size:clamp(24px,7vw,40px);font-weight:500;letter-spacing:.06em;
  color:var(--ink);padding:12px 0;border-bottom:1px solid var(--line2);transition:.3s var(--e)}
.mmenu a:hover{color:var(--acc);padding-left:10px}
.mmenu a em{display:block;font-style:normal;font-family:var(--jp);font-size:11px;letter-spacing:.12em;
  color:var(--muted);margin-top:2px}
.mmenu__tel{margin-top:36px;font-family:var(--en);font-size:26px;color:var(--acc)}

/* ══ HERO ══ */
.hero{position:relative;min-height:min(100svh,900px);display:flex;align-items:center;overflow:hidden;
  padding:calc(var(--nav-h) + 40px) 0 clamp(80px,12vh,130px)}
.hero__bg{position:absolute;inset:0;z-index:0}
.hero__bg img{width:100%;height:114%;object-fit:cover;object-position:58% 50%}
.hero__bg::after{content:"";position:absolute;inset:0;background:
  linear-gradient(94deg,rgba(8,8,9,.93) 0%,rgba(8,8,9,.72) 38%,rgba(8,8,9,.3) 68%,rgba(8,8,9,.12) 100%),
  linear-gradient(180deg,rgba(8,8,9,.6) 0%,transparent 30%,rgba(8,8,9,.85) 100%)}
.hero__in{position:relative;z-index:2}
.hero__h{font-size:clamp(2.6rem,8.4vw,6.6rem);font-weight:700;line-height:1.14;letter-spacing:.02em;
  color:var(--ink)}
.hero__h .ln{display:block;overflow:hidden}
.hero__h .ln > span{display:block;transform:translateY(105%);transition:transform 1.05s var(--e)}
.hero.in .hero__h .ln:nth-child(1) > span{transition-delay:.1s}
.hero.in .hero__h .ln:nth-child(2) > span{transition-delay:.22s}
.hero.in .hero__h .ln:nth-child(3) > span{transition-delay:.34s}
.hero.in .hero__h .ln > span{transform:translateY(0)}
.hero__sub{margin-top:clamp(26px,4vh,40px);font-size:clamp(13.5px,1.2vw,16px);line-height:2.2;
  color:rgba(255,255,255,.76)}
.hero__cta{margin-top:clamp(30px,4.4vh,44px)}
.hero__scroll{position:absolute;left:var(--gut);bottom:26px;z-index:2;display:flex;align-items:center;gap:14px;
  font-family:var(--en);font-size:10.5px;letter-spacing:.28em;color:var(--muted)}
.hero__scroll i{display:block;width:52px;height:1px;background:var(--line);position:relative;overflow:hidden}
.hero__scroll i::after{content:"";position:absolute;inset:0;background:var(--acc);
  transform:translateX(-100%);animation:sc 2.4s var(--e) infinite}
@keyframes sc{0%{transform:translateX(-100%)}60%,100%{transform:translateX(100%)}}
@media(max-width:760px){.hero__scroll{display:none}.hero__cta{width:100%}}

/* ══ CONCEPT ══ */
.cc{background:var(--bg2);padding:clamp(80px,12vh,150px) 0}
.cc__grid{display:grid;grid-template-columns:1fr 1.08fr;gap:clamp(34px,5.5vw,90px);align-items:center}
.cc__t h2{margin-top:22px;font-size:clamp(1.5rem,3.6vw,2.7rem);font-weight:700;line-height:1.55;
  letter-spacing:.03em;color:var(--ink)}
.cc__t h2 em{font-style:normal;color:var(--acc-lt)}
.cc__t p{margin-top:24px;font-size:14px;line-height:2.3;max-width:38em}
.cc__t .btn{margin-top:clamp(28px,4vh,40px)}
.cc__f{position:relative;overflow:hidden;will-change:transform}
.cc__f::before{content:"";position:absolute;left:-1px;top:-1px;width:44px;height:44px;z-index:2;
  border-left:2px solid var(--acc);border-top:2px solid var(--acc)}
.cc__f img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover}
@media(max-width:900px){.cc__grid{grid-template-columns:1fr;gap:34px}}

/* ══ WORKS ══ */
.wk{background:var(--bg);padding:clamp(80px,12vh,150px) 0}
.wk__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,2.4vw,30px)}
.wk__c{background:var(--bg3);border:1px solid var(--line2);overflow:hidden;
  transition:border-color .45s var(--e),transform .5s var(--e)}
.wk__c:hover{border-color:var(--acc);transform:translateY(-6px)}
.wk__c figure{overflow:hidden;aspect-ratio:4/3}
.wk__c img{width:100%;height:100%;object-fit:cover;transition:transform 1.3s var(--e)}
.wk__c:hover img{transform:scale(1.06)}
.wk__b{padding:clamp(22px,2.4vw,30px)}
.wk__tag{display:inline-block;font-family:var(--en);font-size:11px;letter-spacing:.14em;
  color:var(--acc-lt);border:1px solid rgba(216,83,31,.4);padding:4px 12px}
.wk__b h3{margin-top:16px;font-size:16px;font-weight:700;letter-spacing:.03em;line-height:1.7;
  color:var(--ink)}
.wk__b p{margin-top:12px;font-size:13px;line-height:2.05}
@media(max-width:900px){.wk__grid{grid-template-columns:1fr}}

/* ══ LINE UP ══ */
.lu{background:var(--bg2);padding:clamp(80px,12vh,150px) 0}
.lu__lead{max-width:42em;font-size:14px;line-height:2.25;margin-bottom:clamp(34px,5vh,52px)}
.lu__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,2.4vw,30px);align-items:start}
.lu__c{position:relative;background:var(--bg3);border:1px solid var(--line2);overflow:hidden;
  transition:border-color .45s var(--e),transform .5s var(--e)}
.lu__c:hover{transform:translateY(-6px)}
.lu__c.is-reco{border-color:rgba(216,83,31,.55)}
.lu__badge{position:absolute;left:0;top:0;z-index:3;background:var(--acc);color:#fff;
  font-size:11px;letter-spacing:.1em;padding:7px 16px}
.lu__c figure{overflow:hidden;aspect-ratio:4/3}
.lu__c img{width:100%;height:100%;object-fit:cover;transition:transform 1.3s var(--e)}
.lu__c:hover img{transform:scale(1.05)}
.lu__b{padding:clamp(24px,2.6vw,32px)}
.lu__b h3{font-size:18px;font-weight:700;letter-spacing:.05em;color:var(--ink)}
.lu__d{margin-top:12px;font-size:13px;line-height:2.05;min-height:5.2em}
.lu__spec{margin-top:20px;border-top:1px solid var(--line2)}
.lu__spec > div{display:grid;grid-template-columns:4.5em 1fr;gap:12px;padding:11px 0;
  border-bottom:1px solid var(--line2)}
.lu__spec dt{font-size:11.5px;letter-spacing:.1em;color:var(--muted)}
.lu__spec dd{font-size:13px;color:var(--ink)}
.lu__p{margin-top:22px;display:flex;align-items:baseline;gap:6px;flex-wrap:wrap;color:var(--ink)}
.lu__p span{font-size:11.5px;letter-spacing:.1em;color:var(--muted);width:100%}
.lu__p b{font-family:var(--en);font-weight:600;font-size:clamp(1.9rem,3.6vw,2.5rem);line-height:1;
  letter-spacing:.01em}
.lu__p i{font-style:normal;font-size:11px;color:var(--muted);margin-left:4px}
.lu__b .btn{margin-top:24px;width:100%}
.lu__note{margin-top:clamp(30px,4vh,44px);font-size:12px;line-height:2.05;color:var(--muted);max-width:52em}
@media(max-width:980px){.lu__grid{grid-template-columns:1fr}.lu__d{min-height:0}}

/* ══ FLOW ══ */
.fl{background:var(--bg);padding:clamp(80px,12vh,150px) 0}
.fl__row{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--line2);
  border:1px solid var(--line2)}
.fl__line{position:absolute;left:0;right:0;top:0;height:2px;z-index:3;background:var(--line2)}
.fl__line i{display:block;height:100%;width:0;background:var(--acc)}
.fl__row li{position:relative;transition:background .5s var(--e)}
.fl__row li.on{background:var(--bg3)}
.fl__row li.on .fl__n{color:var(--acc)}
.fl__n{transition:color .5s var(--e)}
.fl__row li{background:var(--bg);padding:clamp(26px,2.6vw,34px)}
.fl__n{font-family:var(--en);font-weight:600;font-size:clamp(1.6rem,3vw,2.1rem);line-height:1;
  color:rgba(255,255,255,.16)}
.fl__ic{display:block;width:36px;height:36px;margin-top:18px;color:var(--acc)}
.fl__ic svg{width:100%;height:100%}
.fl__row h3{margin-top:18px;font-size:15px;font-weight:700;letter-spacing:.04em;color:var(--ink)}
.fl__row p{margin-top:12px;font-size:12.5px;line-height:2}
@media(max-width:1000px){.fl__row{grid-template-columns:1fr 1fr}}
@media(max-width:560px){
  .fl__row{grid-template-columns:1fr}
  .fl__line{left:0;top:0;bottom:0;right:auto;width:2px;height:auto}
  .fl__line i{width:100%;height:0}
  .fl__row li{padding-left:34px}
}

/* ══ CTA ══ */
.ct{background:var(--bg2)}
.ct__grid{display:grid;grid-template-columns:1fr 1fr;align-items:stretch;min-height:min(70vh,600px)}
.ct__t{padding:clamp(60px,10vh,120px) clamp(22px,5vw,80px);display:flex;flex-direction:column;
  justify-content:center;max-width:calc(var(--wrap) / 2);margin-left:auto;width:100%}
.ct__t h2{font-size:clamp(1.6rem,3.8vw,2.8rem);font-weight:700;line-height:1.5;letter-spacing:.03em;
  color:var(--ink)}
.ct__t p{margin-top:22px;font-size:14px;line-height:2.25;max-width:34em}
.ct__btns{margin-top:clamp(30px,4.4vh,42px);display:flex;gap:13px;flex-wrap:wrap}
.ct__btns .btn svg{width:16px;height:16px}
.ct__note{margin-top:20px;font-size:12px;color:var(--muted)}
.ct__f{position:relative;overflow:hidden;min-height:340px}
.ct__f img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.ct__f::after{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(17,18,20,.9),rgba(17,18,20,.15) 45%,transparent)}
@media(max-width:900px){
  .ct__grid{grid-template-columns:1fr}
  .ct__t{max-width:none;margin:0;order:2}
  .ct__f{order:1;min-height:44vh}
  .ct__btns .btn{flex:1 1 auto}
}

/* ══ GALLERY ══ */
.ig{background:var(--bg);padding:clamp(80px,12vh,150px) 0 0}
.ig__mq{overflow:hidden;border-top:1px solid var(--line2);border-bottom:1px solid var(--line2)}
.ig__track{display:flex;width:max-content;will-change:transform}
.ig__track figure{width:clamp(200px,22vw,300px);aspect-ratio:1;overflow:hidden;flex:none;
  border-right:1px solid var(--line2);background:var(--bg)}
.ig__track img{width:100%;height:100%;object-fit:cover;filter:grayscale(.4);
  transition:filter .5s var(--e),transform 1.1s var(--e)}
.ig__track figure:hover img{filter:grayscale(0);transform:scale(1.06)}

/* ══ COMPANY ══ */
.co{background:var(--bg);padding:clamp(80px,12vh,150px) 0}
.co__list{border-top:1px solid var(--line)}
.co__list > div{display:grid;grid-template-columns:11em 1fr;gap:26px;padding:22px 0;
  border-bottom:1px solid var(--line2)}
.co__list dt{font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--ink)}
.co__list dd{font-size:14px;line-height:2.05}
.co__list dd ul{display:grid;gap:8px}
.co__list dd li{display:flex;gap:11px;align-items:flex-start;font-size:13.5px}
.co__list dd li::before{content:"";width:5px;height:5px;margin-top:.82em;background:var(--acc);flex:none}
@media(max-width:700px){.co__list > div{grid-template-columns:1fr;gap:8px}}
.tbd{display:inline-block;margin-left:10px;font-size:9.5px;letter-spacing:.1em;color:#C9944A;
  border:1px solid rgba(201,148,74,.4);padding:2px 8px;vertical-align:middle}

/* ══ FOOTER ══ */
.ft{background:var(--bg2);border-top:1px solid var(--line2);padding:clamp(56px,8vh,84px) 0 30px}
.ft__top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:clamp(28px,4vw,56px)}
.ft__b .brand__mk{display:block;width:32px;height:32px}
.ft__b b{display:block;margin-top:14px;font-family:var(--en);font-weight:600;font-size:18px;
  letter-spacing:.14em;color:var(--ink)}
.ft__b p{margin-top:16px;font-size:12.5px;line-height:2.1}
.ft__n h3{font-family:var(--en);font-size:11px;font-weight:500;letter-spacing:.2em;color:var(--acc-lt);
  margin-bottom:18px}
.ft__n a{display:block;font-size:13px;padding:6px 0;transition:color .35s var(--e)}
.ft__n a:hover{color:var(--ink)}
.ft__tel{display:block;font-family:var(--en);font-size:26px;letter-spacing:.03em;color:var(--ink)}
.ft__c span{display:block;margin-top:6px;font-size:11.5px;color:var(--muted)}
.ft__c .btn{margin-top:20px}
.ft__btm{margin-top:clamp(44px,6vh,64px);padding-top:24px;border-top:1px solid var(--line2);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:11.5px;color:var(--muted)}
@media(max-width:900px){.ft__top{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.ft__top{grid-template-columns:1fr}}

/* ══ 出現アニメーション ══ */
[data-fade],[data-reveal]{opacity:0;transform:translateY(26px);
  transition:opacity .9s var(--e),transform 1s var(--e)}
[data-fade].in,[data-reveal].in{opacity:1;transform:none}
[data-d="1"]{transition-delay:.1s}
[data-d="2"]{transition-delay:.2s}
[data-d="3"]{transition-delay:.3s}
[data-d="4"]{transition-delay:.4s}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  [data-fade],[data-reveal]{opacity:1;transform:none}
  .ig__track{transform:none!important}
  .hero__h .ln > span{transform:none}
}