:root{
  --green:#2e4b3a;
  --green-deep:#22392c;
  --gold:#b98f3e;
  --ink:#26251f;
  --ink-soft:#5c5a50;
  --paper:#faf8f3;
  --paper-warm:#f3efe6;
  --line:#e3ddcf;
  --serif:"Noto Serif JP", serif;
  --sans:"Noto Sans JP", sans-serif;
  --en:"Cormorant Garamond", serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:86px}
body{font-family:var(--sans);color:var(--ink);background:var(--paper);line-height:1.9;font-size:15.5px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
::selection{background:rgba(185,143,62,.25)}
.wrap{max-width:1100px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
header{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:18px 28px;transition:background .35s,box-shadow .35s}
header.scrolled{background:rgba(250,248,243,.94);backdrop-filter:blur(8px);box-shadow:0 1px 0 var(--line)}
.brand{font-family:var(--en);font-size:21px;font-weight:600;letter-spacing:.14em;color:#fff;transition:color .35s}
.brand small{display:block;font-family:var(--sans);font-size:10px;letter-spacing:.3em;font-weight:500;opacity:.85}
header.scrolled .brand{color:var(--ink)}
nav{display:flex;gap:26px;font-size:12.5px;letter-spacing:.12em;font-weight:500;align-items:center}
nav a{color:#fff;transition:color .35s,opacity .2s}
nav a:hover{opacity:.6}
header.scrolled nav a{color:var(--ink)}
nav .cta{border:1px solid currentColor;padding:7px 18px;border-radius:2px}
@media(max-width:760px){
  nav a:not(.cta){display:none}
  header{padding:14px 18px}
  .brand{font-size:17px}
  .brand small{font-size:8.5px;letter-spacing:.2em}
  nav .cta{padding:6px 14px;font-size:11.5px;white-space:nowrap}
  .hero .scroll{display:none}
}

/* ---------- hero ---------- */
.hero{position:relative;height:100svh;min-height:640px;display:flex;align-items:flex-end;color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:url("../img/misty-field.jpg") center 40%/cover no-repeat;transform:scale(1.04)}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(20,26,20,.74) 0%,rgba(20,26,20,.18) 45%,rgba(20,26,20,.25) 100%)}
.hero-inner{position:relative;z-index:2;width:100%;max-width:1100px;margin:0 auto;padding:0 28px 8vh}
.hero-en{font-family:var(--en);font-style:italic;font-size:15px;letter-spacing:.22em;opacity:.9;margin-bottom:14px}
.hero h1{font-family:var(--serif);font-weight:600;font-size:clamp(30px,5.2vw,56px);line-height:1.5;letter-spacing:.06em;text-shadow:0 2px 24px rgba(0,0,0,.35)}
.hero p.lead{margin-top:22px;max-width:620px;font-size:14.5px;line-height:2.1;opacity:.94}
.hero-cta{margin-top:32px;display:flex;gap:16px;flex-wrap:wrap}
.hero-cta a{display:inline-block;padding:13px 34px;font-size:12.5px;letter-spacing:.16em;border:1px solid rgba(255,255,255,.8);border-radius:2px;transition:background .3s,color .3s}
.hero-cta a:hover{background:#fff;color:var(--ink)}
.hero-cta a.solid{background:rgba(250,248,243,.92);color:var(--ink);border-color:transparent}
.hero-cta a.solid:hover{background:#fff}
.hero .scroll{position:absolute;right:32px;bottom:0;writing-mode:vertical-rl;font-family:var(--en);font-size:11px;letter-spacing:.3em;opacity:.8;padding-bottom:70px}
.hero .scroll::after{content:"";position:absolute;bottom:0;left:50%;width:1px;height:56px;background:#fff;animation:drop 2.2s ease-in-out infinite}
@keyframes drop{0%{transform:scaleY(0);transform-origin:top}45%{transform:scaleY(1);transform-origin:top}55%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ---------- clients strip ---------- */
.clients{background:var(--paper-warm);border-bottom:1px solid var(--line);padding:38px 0 34px;text-align:center}
.clients .lbl{font-family:var(--en);font-style:italic;font-size:12.5px;letter-spacing:.24em;color:var(--gold);margin-bottom:18px}
.clients ul{list-style:none;display:flex;flex-wrap:wrap;justify-content:center;align-items:center}
.clients li{font-family:var(--serif);font-size:14px;letter-spacing:.08em;color:var(--green-deep);padding:2px 26px;position:relative;line-height:2}
.clients li+li::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:1px;height:14px;background:var(--line)}
.clients .note{margin-top:14px;font-size:11px;color:var(--ink-soft);letter-spacing:.06em}
@media(max-width:760px){.clients li{padding:2px 14px;font-size:12.5px}.clients li+li::before{height:11px}}

/* ---------- sections ---------- */
section{padding:120px 0}
.sec-label{font-family:var(--en);font-style:italic;font-size:15px;letter-spacing:.2em;color:var(--gold);margin-bottom:12px;display:flex;align-items:center;gap:14px}
.sec-label::before{content:"";width:38px;height:1px;background:var(--gold);opacity:.7}
.sec-label.center{justify-content:center}
h2{font-family:var(--serif);font-size:clamp(24px,3.4vw,35px);font-weight:600;letter-spacing:.08em;line-height:1.6;margin-bottom:26px}
.sec-intro{max-width:660px;color:var(--ink-soft);margin-bottom:56px}

/* promise */
#promise{padding:104px 0;border-bottom:1px solid var(--line)}
.promise-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.promise-quote{font-family:var(--serif);font-size:clamp(24px,3.2vw,34px);font-weight:600;letter-spacing:.06em;line-height:2;color:var(--green-deep)}
.promise-quote em{font-style:normal;background:linear-gradient(transparent 68%,rgba(185,143,62,.32) 68%)}
.promise-txt p{font-size:14px;color:var(--ink-soft);margin-bottom:16px}
.promise-txt p:last-child{margin-bottom:0}
@media(max-width:820px){.promise-grid{grid-template-columns:1fr;gap:28px}}

/* strengths */
.strengths{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.strength{background:var(--paper);padding:46px 36px}
.strength .num{font-family:var(--en);font-size:30px;color:var(--gold);line-height:1}
.strength h3{font-family:var(--serif);font-size:18.5px;font-weight:600;margin:16px 0 12px;letter-spacing:.05em}
.strength p{font-size:13.5px;color:var(--ink-soft);line-height:2}
@media(max-width:820px){.strengths{grid-template-columns:1fr}}

/* works */
#works{background:var(--paper-warm)}
.case{display:grid;grid-template-columns:1.15fr 1fr;gap:56px;align-items:center;margin-bottom:100px}
.case:last-child{margin-bottom:0}
.case:nth-of-type(even) .case-img{order:2}
.case-img{position:relative}
.case-img img{aspect-ratio:3/2;object-fit:cover;width:100%}
.case-img::after{content:"";position:absolute;inset:14px -14px -14px 14px;border:1px solid rgba(185,143,62,.4);z-index:-1}
.case-img .sub{position:absolute;right:-18px;bottom:-34px;width:38%;border:6px solid var(--paper-warm);aspect-ratio:1/1;object-fit:cover}
.case-tag{display:inline-block;font-size:11px;letter-spacing:.16em;color:var(--green);border:1px solid var(--green);padding:4px 12px;margin-bottom:16px}
.case h3{font-family:var(--serif);font-size:22px;font-weight:600;letter-spacing:.05em;line-height:1.7;margin-bottom:16px}
.case p{font-size:14px;color:var(--ink-soft)}
.case .facts{margin-top:20px;padding-top:18px;border-top:1px solid var(--line);font-size:12.5px;color:var(--ink-soft);line-height:2.1}
.case .facts b{color:var(--ink);font-weight:500}
.case .more{display:inline-block;margin-top:24px;font-size:12.5px;letter-spacing:.14em;color:var(--green);border-bottom:1px solid var(--gold);padding-bottom:4px;transition:opacity .25s}
.case .more::after{content:"→";margin-left:10px;color:var(--gold)}
.case .more:hover{opacity:.6}
@media(max-width:860px){.case{grid-template-columns:1fr;gap:40px}.case:nth-of-type(even) .case-img{order:0}.case-img::after{inset:10px -10px -10px 10px}}

/* faces */
.faces{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.faces figure{overflow:hidden;margin:0}
.faces img{width:100%;aspect-ratio:3/4;object-fit:cover;transition:transform .8s cubic-bezier(.2,.6,.2,1)}
.faces figure:hover img{transform:scale(1.05)}
@media(max-width:760px){.faces{grid-template-columns:repeat(2,1fr)}}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:210px;gap:10px}
.gallery figure{overflow:hidden;position:relative;margin:0}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .8s cubic-bezier(.2,.6,.2,1)}
.gallery figure:hover img{transform:scale(1.05)}
.g-tall{grid-row:span 2}
.g-wide{grid-column:span 2}
@media(max-width:760px){.gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:160px}}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;text-align:center;padding:64px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat .v{font-family:var(--serif);font-size:21px;font-weight:600;color:var(--green);letter-spacing:.04em}
.stat .k{font-size:11.5px;letter-spacing:.18em;color:var(--ink-soft);margin-top:8px}
@media(max-width:760px){.stats{grid-template-columns:repeat(2,1fr);gap:28px}}

/* services */
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.svc{border:1px solid var(--line);background:#fff;padding:38px 34px;position:relative}
.svc.wide{grid-column:1/-1;background:var(--green-deep);color:#f2efe6;border:none}
.svc.wide h3{color:#fff}
.svc.wide p{color:rgba(242,239,230,.85)}
.svc.wide .price{color:var(--gold)}
.svc.wide .price small{color:rgba(242,239,230,.75)}
.svc h3{font-family:var(--serif);font-size:18px;font-weight:600;letter-spacing:.05em;margin-bottom:6px}
.svc .en{font-family:var(--en);font-style:italic;font-size:13px;color:var(--gold);letter-spacing:.1em}
.svc p{font-size:13.5px;color:var(--ink-soft);margin-top:14px;line-height:2}
.svc .price{margin-top:18px;font-family:var(--serif);font-size:17px;color:var(--green);font-weight:600}
.svc .price small{font-size:11.5px;color:var(--ink-soft);font-family:var(--sans);font-weight:400;margin-left:6px}
.svc-note{margin-top:26px;font-size:12px;color:var(--ink-soft);line-height:2}
@media(max-width:760px){.svc-grid{grid-template-columns:1fr}}
@media(max-width:420px){h2{font-size:21.5px}.promise-quote{font-size:22px}}

/* protocol — 公共・法人案件の進め方 */
#protocol{background:var(--paper);padding-top:0}
.protocol{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.protocol>div{background:#fff;padding:36px 34px}
.protocol h3{font-family:var(--serif);font-size:16.5px;font-weight:600;letter-spacing:.05em;margin-bottom:10px;display:flex;align-items:baseline;gap:12px}
.protocol h3::before{content:"◆";font-size:9px;color:var(--gold)}
.protocol p{font-size:13px;color:var(--ink-soft);line-height:2}
@media(max-width:760px){.protocol{grid-template-columns:1fr}}

/* about */
#about{background:var(--green-deep);color:#f2efe6}
#about .sec-label{color:var(--gold)}
#about h2{color:#fff}
.about-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:64px;align-items:center}
.about-img{position:relative}
.about-img>img{aspect-ratio:4/5;object-fit:cover;width:100%}
.about-img .sub{position:absolute;left:-16px;bottom:-30px;width:46%;aspect-ratio:3/2;object-fit:cover;border:6px solid var(--green-deep)}
.about-txt p{font-size:14px;line-height:2.2;opacity:.92;margin-bottom:20px}
.about-facts{margin-top:30px;border-top:1px solid rgba(255,255,255,.18);padding-top:24px;display:grid;grid-template-columns:auto 1fr;gap:10px 26px;font-size:13px}
.about-facts dt{opacity:.6;letter-spacing:.1em}
.about-facts dd{opacity:.95}
@media(max-width:860px){.about-grid{grid-template-columns:1fr;gap:40px}.about-img{margin-bottom:26px}.about-img .sub{left:0}}

/* flow */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;counter-reset:step}
.flow div{border-top:2px solid var(--green);padding-top:18px;counter-increment:step}
.flow div::before{content:"0" counter(step);font-family:var(--en);font-size:22px;color:var(--gold)}
.flow h3{font-size:14.5px;font-weight:700;margin:8px 0 8px;letter-spacing:.06em}
.flow p{font-size:12.5px;color:var(--ink-soft);line-height:1.9}
@media(max-width:860px){.flow{grid-template-columns:repeat(2,1fr)}}

/* company — 事業者概要 */
#company{background:var(--paper-warm)}
.company{max-width:780px}
.company .row{display:grid;grid-template-columns:190px 1fr;gap:20px;padding:20px 6px;border-bottom:1px solid var(--line);font-size:13.5px}
.company .row:first-child{border-top:1px solid var(--line)}
.company dt{color:var(--ink-soft);letter-spacing:.12em;font-weight:500}
.company dd{line-height:2}
@media(max-width:640px){.company .row{grid-template-columns:1fr;gap:2px;padding:16px 4px}}

/* contact */
#contact{background:var(--paper);text-align:center}
#contact .sec-intro{margin:0 auto 44px}
.contact-btns{display:flex;gap:18px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;padding:17px 46px;font-size:13.5px;letter-spacing:.14em;font-weight:500;border-radius:2px;transition:opacity .25s}
.btn:hover{opacity:.8}
.btn-primary{background:var(--green);color:#fff}
.btn-ghost{border:1px solid var(--ink);color:var(--ink)}
.contact-note{margin-top:30px;font-size:12px;color:var(--ink-soft)}

/* footer */
footer{background:var(--green-deep);color:rgba(242,239,230,.78);padding:72px 0 36px;font-size:12.5px}
.f-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:44px;max-width:1100px;margin:0 auto;padding:0 24px}
.f-brand{font-family:var(--en);font-size:22px;letter-spacing:.16em;color:#fff}
.f-brand small{display:block;font-family:var(--sans);font-size:9.5px;letter-spacing:.3em;opacity:.7;margin-top:2px}
.f-grid p{margin-top:16px;font-size:12px;line-height:2.1;opacity:.85}
.f-grid h4{font-family:var(--en);font-style:italic;font-size:13px;letter-spacing:.2em;color:var(--gold);font-weight:500;margin-bottom:14px}
.f-grid ul{list-style:none}
.f-grid li{margin-bottom:9px}
.f-grid li a{opacity:.85;transition:opacity .2s}
.f-grid li a:hover{opacity:1;color:#fff}
.f-bottom{max-width:1100px;margin:52px auto 0;padding:22px 24px 0;border-top:1px solid rgba(255,255,255,.14);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:10.5px;letter-spacing:.08em;opacity:.65}
@media(max-width:760px){.f-grid{grid-template-columns:1fr;gap:32px}}

/* reveal */
.rv{opacity:0;transform:translateY(26px);transition:opacity .9s ease,transform .9s ease}
.rv.on{opacity:1;transform:none}

/* =====================================================
   works detail pages
   ===================================================== */
.page-hero{position:relative;min-height:62svh;display:flex;align-items:flex-end;color:#fff;overflow:hidden}
.page-hero .bg{position:absolute;inset:0;background-position:center;background-size:cover}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(20,26,20,.78) 0%,rgba(20,26,20,.22) 55%,rgba(20,26,20,.3) 100%)}
.page-hero .hero-inner{padding-bottom:64px}
.page-hero.plain{background:var(--green-deep);min-height:0}
.page-hero.plain::after{content:none}
.page-hero.plain .hero-inner{padding-top:170px;padding-bottom:80px}
.breadcrumb{font-size:11.5px;letter-spacing:.14em;opacity:.85;margin-bottom:20px}
.breadcrumb a{border-bottom:1px solid rgba(255,255,255,.4);padding-bottom:2px}
.breadcrumb span{margin:0 10px;opacity:.6}
.page-hero .case-tag{color:#fff;border-color:rgba(255,255,255,.6)}
.page-hero h1{font-family:var(--serif);font-weight:600;font-size:clamp(25px,3.8vw,40px);line-height:1.6;letter-spacing:.06em;text-shadow:0 2px 20px rgba(0,0,0,.3)}
.page-hero .sub-lead{margin-top:16px;font-size:13.5px;opacity:.9;max-width:640px}

.case-meta{background:var(--paper-warm);border-bottom:1px solid var(--line);padding:44px 0}
.meta-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 56px;max-width:900px}
.meta-grid .m{display:grid;grid-template-columns:110px 1fr;gap:16px;font-size:13px;padding:10px 0;border-bottom:1px solid var(--line)}
.meta-grid dt{color:var(--gold);letter-spacing:.14em;font-size:11.5px;padding-top:3px}
.meta-grid dd{line-height:1.9}
@media(max-width:760px){.meta-grid{grid-template-columns:1fr}}

.article{max-width:760px;margin:0 auto;padding:90px 24px 40px}
.article h2{font-size:clamp(20px,2.6vw,25px);margin:74px 0 24px;padding-top:0}
.article h2:first-child{margin-top:0}
.article h2::after{content:"";display:block;width:44px;height:1px;background:var(--gold);margin-top:20px}
.article p{font-size:14.5px;line-height:2.2;margin-bottom:22px;color:#3b3a33}
.article ul{margin:0 0 22px 1.4em;font-size:14px;color:#3b3a33;line-height:2.1}
.article .aside{background:var(--paper-warm);border-left:2px solid var(--gold);padding:22px 26px;font-size:13px;color:var(--ink-soft);line-height:2.1;margin:34px 0}
.ph-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;max-width:1100px;margin:44px auto;padding:0 24px}
.ph-grid img{width:100%;aspect-ratio:4/3;object-fit:cover}
.ph-grid .tall{grid-row:span 2}
.ph-grid .tall img{height:100%;aspect-ratio:auto}
.ph-wide{max-width:1100px;margin:44px auto;padding:0 24px}
.ph-wide img{width:100%;aspect-ratio:21/9;object-fit:cover}
.ph-cap{font-size:11.5px;color:var(--ink-soft);letter-spacing:.06em;margin-top:10px;text-align:right}
@media(max-width:700px){.ph-grid{grid-template-columns:repeat(2,1fr)}}

/* 発注構造チェーン図 */
.chain{max-width:460px;margin:36px auto;text-align:center}
.chain .node{border:1px solid var(--line);background:#fff;padding:16px 22px;font-size:13.5px;line-height:1.8}
.chain .node b{font-family:var(--serif);font-size:15px;letter-spacing:.04em;display:block}
.chain .node small{color:var(--ink-soft);font-size:11.5px}
.chain .node.hl{border-color:var(--gold);background:var(--paper-warm)}
.chain .arw{color:var(--gold);font-size:15px;line-height:2.2}

/* related + cta */
.rel-sec{max-width:1100px;margin:0 auto;padding:60px 24px 110px}
.rel-sec h3{font-family:var(--en);font-style:italic;font-size:15px;letter-spacing:.2em;color:var(--gold);font-weight:500;margin-bottom:24px}
.rel{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.rel a{border:1px solid var(--line);background:#fff;padding:24px 26px;font-size:13px;line-height:1.9;transition:border-color .3s}
.rel a:hover{border-color:var(--gold)}
.rel a .tag{display:block;font-size:10.5px;letter-spacing:.14em;color:var(--gold);margin-bottom:8px}
.rel a b{font-family:var(--serif);font-weight:600;letter-spacing:.04em}
@media(max-width:760px){.rel{grid-template-columns:1fr}}

.cta-band{background:var(--green-deep);color:#fff;text-align:center;padding:84px 24px}
.cta-band .sec-label{justify-content:center}
.cta-band h2{color:#fff}
.cta-band p{font-size:13.5px;opacity:.85;max-width:560px;margin:0 auto 36px}
.cta-band .btn-primary{background:var(--paper);color:var(--ink)}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.7);color:#fff}