:root{
  --coal:#1E1B17;--coal2:#272219;--seam:#3A3225;
  --amber:#D47C2A;--amber2:#F0A14B;
  --bone:#F4EFE5;--mut:#A49882;--green:#06C755;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{max-width:100%;overflow-x:hidden}
body{font-family:'Noto Sans JP',sans-serif;background:var(--coal);color:var(--bone);line-height:1.95;letter-spacing:.03em;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1120px;margin:0 auto;padding:0 28px}
.en{font-family:'Bricolage Grotesque',sans-serif}
.mono{font-family:'IBM Plex Mono',monospace}
h1,h2,h3,p,li{word-break:keep-all;overflow-wrap:anywhere}
.nw{display:inline}
@media(min-width:761px){.nw{white-space:nowrap;display:inline-block}}
::selection{background:var(--amber);color:var(--coal)}
:focus-visible{outline:2px solid var(--amber2);outline-offset:3px}

/* Header */
header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(30,27,23,.84);backdrop-filter:blur(12px);border-bottom:1px solid var(--seam)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;max-width:1240px;margin:0 auto;padding:0 28px}
.logo{display:flex;align-items:center;gap:12px}
.logo svg{width:46px;height:auto;flex:none}
.logo .word{font-family:'Bricolage Grotesque',sans-serif;font-weight:700;font-size:1.2rem;letter-spacing:.06em}
.logo .word i{font-style:normal;color:var(--amber2)}
.gnav{display:flex;gap:34px;list-style:none;font-size:.82rem;letter-spacing:.12em;color:var(--mut)}
.gnav a{transition:color .3s;padding:6px 0;position:relative}
.gnav a:hover{color:var(--bone)}
.gnav a[aria-current]{color:var(--bone)}
.gnav a[aria-current]::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:var(--amber)}
.line-btn{display:inline-flex;align-items:center;gap:8px;background:var(--green);color:#fff;padding:11px 24px;border-radius:999px;font-weight:700;font-size:.85rem;transition:.3s;box-shadow:0 4px 18px rgba(6,199,85,.3)}
.line-btn:hover{transform:translateY(-2px);box-shadow:0 8px 26px rgba(6,199,85,.45)}
.line-btn.big{padding:16px 42px;font-size:.98rem}
/* SP menu */
.menu-btn{display:none;width:42px;height:30px;position:relative;background:none;border:0;cursor:pointer;z-index:120}
.menu-btn span{position:absolute;left:4px;right:4px;height:2px;background:var(--bone);transition:.3s}
.menu-btn span:nth-child(1){top:8px}.menu-btn span:nth-child(2){top:20px}
.menu-btn.open span:nth-child(1){top:14px;transform:rotate(45deg)}
.menu-btn.open span:nth-child(2){top:14px;transform:rotate(-45deg)}
.sp-menu{position:fixed;inset:0;background:rgba(30,27,23,.97);z-index:110;display:flex;align-items:center;opacity:0;pointer-events:none;transition:.35s}
.sp-menu.open{opacity:1;pointer-events:auto}
.sp-menu ul{list-style:none;padding:0 36px}
.sp-menu li{margin:20px 0}
.sp-menu a{font-family:'Bricolage Grotesque',sans-serif;font-size:2rem;font-weight:700}
.sp-menu a small{margin-left:16px;font-family:'Noto Sans JP',sans-serif;font-weight:300;font-size:.75rem;color:var(--mut)}
.sp-menu .line-btn{margin-top:26px}
@media(max-width:900px){.gnav,.nav>.line-btn{display:none}.menu-btn{display:block}.nav{height:64px}.logo svg{width:38px}.logo .word{font-size:1.05rem}}

/* 下層ページ用ヒーロー */
.page-hero{padding:170px 0 70px;border-bottom:1px solid var(--seam);position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(50% 60% at 85% 120%,rgba(212,124,42,.14),transparent 70%);pointer-events:none}
.crumb{font-family:'IBM Plex Mono',monospace;font-size:.68rem;letter-spacing:.25em;color:var(--mut)}
.crumb a:hover{color:var(--amber2)}
.page-hero h1{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:clamp(2.6rem,8vw,5.4rem);line-height:1.05;margin-top:22px;text-transform:uppercase}
.page-hero .jp{display:block;font-family:'Noto Sans JP',sans-serif;font-weight:400;font-size:.95rem;color:var(--mut);letter-spacing:.3em;margin-top:16px}

/* セクション共通 */
section{padding:120px 0;position:relative}
.sec-head{margin-bottom:64px}
.sec-label{font-family:'IBM Plex Mono',monospace;font-size:.75rem;letter-spacing:.32em;color:var(--amber2);text-transform:uppercase;display:flex;align-items:center;gap:12px}
.sec-label::before{content:"";width:26px;height:1px;background:var(--amber)}
.sec-title{font-family:'Bricolage Grotesque',sans-serif;font-weight:700;font-size:clamp(1.9rem,5vw,3.3rem);line-height:1.2;margin-top:16px}
.sec-title .jp{display:block;font-family:'Noto Sans JP',sans-serif;font-weight:400;font-size:.42em;color:var(--mut);letter-spacing:.28em;margin-top:12px}
.more{display:inline-flex;align-items:center;gap:12px;margin-top:44px;font-family:'IBM Plex Mono',monospace;font-size:.74rem;letter-spacing:.25em;color:var(--amber2)}
.more::after{content:"→";transition:transform .3s}
.more:hover::after{transform:translateX(6px)}

/* Hero (TOP) */
.hero{min-height:100svh;display:flex;flex-direction:column;justify-content:center;position:relative;padding:120px 0 0;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(60% 50% at 70% 110%,rgba(212,124,42,.16),transparent 70%),radial-gradient(40% 35% at 12% -5%,rgba(212,124,42,.07),transparent 70%);pointer-events:none}
.kicker{display:inline-flex;align-items:center;gap:12px;font-family:'IBM Plex Mono',monospace;font-size:.78rem;letter-spacing:.3em;color:var(--amber2);text-transform:uppercase}
.kicker::before{content:"";width:34px;height:1px;background:var(--amber);transform:scaleX(0);transform-origin:left;animation:grow .8s ease .2s forwards}
@keyframes grow{to{transform:scaleX(1)}}
.hero h1{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:clamp(3.2rem,11.5vw,9rem);line-height:.98;letter-spacing:-.01em;margin-top:26px;text-transform:uppercase}
.hero h1 .line{display:block;overflow:hidden}
.hero h1 .line>span{display:inline-block;transform:translateY(110%);animation:rise 1s cubic-bezier(.2,.8,.2,1) forwards}
.hero h1 .line:nth-child(2)>span{animation-delay:.14s}
@keyframes rise{to{transform:none}}
.hero h1 .shift{color:transparent;-webkit-text-stroke:2px var(--bone)}
.hero .tag{margin-top:34px;font-size:clamp(1.05rem,2.4vw,1.45rem);font-weight:500;letter-spacing:.08em}
.hero .sub{margin-top:18px;max-width:600px;color:var(--mut);font-weight:300;font-size:.95rem}
.hero-cta{margin-top:44px;display:flex;gap:18px;flex-wrap:wrap;align-items:center}
.btn-ghost{display:inline-block;border:1px solid var(--seam);color:var(--bone);padding:14px 36px;border-radius:999px;font-size:.85rem;letter-spacing:.12em;transition:.3s}
.btn-ghost:hover{border-color:var(--amber);color:var(--amber2)}
.hero-arc{margin-top:auto;width:100%;display:block}
.hero-arc path.main{fill:none;stroke:var(--amber);stroke-width:2;stroke-dasharray:1300;stroke-dashoffset:1300;animation:draw 2.2s cubic-bezier(.4,0,.2,1) .3s forwards}
.hero-arc path.ghost{fill:none;stroke:var(--seam);stroke-width:1}
.hero-arc .spark{fill:var(--amber2);filter:drop-shadow(0 0 6px rgba(240,161,75,.9))}
@keyframes draw{to{stroke-dashoffset:0}}
.logo svg circle{animation:pulse 2.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

/* Concept */
.concept{background:var(--bone);color:var(--coal);clip-path:polygon(0 3.5vw,100% 0,100% calc(100% - 3.5vw),0 100%)}
.concept .sec-label{color:#A35A14}
.concept .sec-title .jp{color:#857A66}
.concept .more{color:#A35A14}
.concept-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:#D9D0BD;border:1px solid #D9D0BD}
.concept-cell{background:var(--bone);padding:54px 44px}
.concept-cell .word{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:clamp(2.2rem,5.4vw,3.8rem);line-height:1}
.concept-cell .yomi{font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.3em;color:#A35A14;margin-top:10px}
.concept-cell .mean{margin-top:24px;font-size:.95rem;color:#4A4337}
.concept-cell.arc .word::after{content:"";display:block;width:84px;height:42px;border:2.5px solid var(--amber);border-bottom:0;border-radius:84px 84px 0 0;margin-top:20px;clip-path:inset(0 100% 0 0);transition:clip-path 1s ease .3s}
.concept.show .concept-cell.arc .word::after{clip-path:inset(0 0 0 0)}
.concept-cell.shift .word{color:transparent;-webkit-text-stroke:2px var(--coal)}
.concept-cell.shift .word::after{content:"";display:block;width:84px;height:14px;margin-top:48px;background:repeating-linear-gradient(-60deg,var(--amber) 0 6px,transparent 6px 14px);background-size:28px 100%;animation:slide 1.6s linear infinite paused}
.concept.show .concept-cell.shift .word::after{animation-play-state:running}
@keyframes slide{to{background-position:28px 0}}
.concept-sum{margin-top:56px;max-width:760px;font-size:1.02rem;color:#3A342B;line-height:2.3}
.concept-sum b{color:var(--coal);border-bottom:2px solid var(--amber)}
@media(max-width:760px){.concept-grid{grid-template-columns:1fr}}

/* Services list */
.sv-list{list-style:none}
.sv-item{display:grid;grid-template-columns:64px 1.2fr 1fr auto;gap:30px;align-items:start;padding:52px 0;border-top:1px solid var(--seam);position:relative}
.sv-item:last-child{border-bottom:1px solid var(--seam)}
.sv-item::after{content:"";position:absolute;left:0;bottom:-1px;height:1px;width:0;background:var(--amber);transition:width .5s ease}
.sv-item:hover::after{width:100%}
.sv-num{font-family:'IBM Plex Mono',monospace;color:var(--mut);font-size:.8rem;padding-top:14px}
.sv-item h3{font-family:'Bricolage Grotesque',sans-serif;font-weight:700;font-size:clamp(1.5rem,3.2vw,2.1rem);line-height:1.25}
.sv-item h3 small{display:block;font-family:'Noto Sans JP',sans-serif;font-weight:400;font-size:.55em;color:var(--mut);letter-spacing:.18em;margin-top:8px}
.sv-desc{color:var(--mut);font-weight:300;font-size:.92rem;padding-top:8px}
.sv-desc .tags{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}
.sv-desc .tags span{font-family:'IBM Plex Mono',monospace;font-size:.68rem;border:1px solid var(--seam);border-radius:999px;padding:4px 12px;color:var(--bone)}
.sv-price{font-family:'Bricolage Grotesque',sans-serif;font-weight:700;font-size:clamp(1.3rem,2.4vw,1.6rem);color:var(--amber2);text-align:right;padding-top:10px;white-space:nowrap}
.sv-price small{display:block;font-family:'IBM Plex Mono',monospace;font-size:.6rem;color:var(--mut);letter-spacing:.2em;margin-top:6px}
@media(max-width:860px){.sv-item{grid-template-columns:44px 1fr;row-gap:14px}.sv-desc{grid-column:2}.sv-price{grid-column:2;text-align:left;padding-top:0}}
/* services.html 詳細ブロック */
.sv-detail{border:1px solid var(--seam);background:var(--coal2);padding:46px 40px;margin-top:34px}
.sv-detail h4{font-size:1rem;letter-spacing:.12em;color:var(--amber2);font-family:'IBM Plex Mono',monospace;font-weight:500;font-size:.72rem}
.sv-detail ul{list-style:none;margin-top:18px;display:grid;gap:10px}
.sv-detail li{display:flex;gap:14px;font-size:.92rem;color:#CDC3B2;font-weight:300}
.sv-detail li::before{content:"—";color:var(--amber)}

/* Profile */
.profile-sec{background:var(--coal2)}
.pf-grid{display:grid;grid-template-columns:.9fr 1.4fr;gap:64px;align-items:center}
.pf-visual{aspect-ratio:4/5;border:1px solid var(--seam);position:relative;display:flex;align-items:center;justify-content:center;background:radial-gradient(70% 55% at 50% 100%,rgba(212,124,42,.18),transparent 70%)}
.pf-visual svg{width:62%;height:auto}
.pf-visual .caption{position:absolute;left:18px;bottom:14px;font-family:'IBM Plex Mono',monospace;font-size:.62rem;letter-spacing:.25em;color:var(--mut)}
.pf-name{font-size:clamp(1.7rem,3.4vw,2.2rem);font-weight:700;letter-spacing:.14em}
.pf-name small{display:inline-block;margin-left:18px;font-family:'IBM Plex Mono',monospace;font-size:.62rem;letter-spacing:.3em;color:var(--amber2)}
.pf-role{margin-top:10px;color:var(--mut);font-size:.9rem;letter-spacing:.1em}
.pf-body{margin-top:30px;color:#CDC3B2;font-weight:300;font-size:.97rem}
.pf-body p+p{margin-top:1.2em}
.pf-facts{margin-top:34px;list-style:none;border-top:1px solid var(--seam)}
.pf-facts li{display:flex;gap:22px;padding:16px 0;border-bottom:1px solid var(--seam);font-size:.9rem;align-items:baseline}
.pf-facts .k{font-family:'IBM Plex Mono',monospace;font-size:.66rem;letter-spacing:.2em;color:var(--amber2);min-width:96px}
@media(max-width:860px){.pf-grid{grid-template-columns:1fr}.pf-visual{max-width:380px;margin:0 auto}}

/* Works */
.works-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.wk{border:1px solid var(--seam);transition:.35s;background:var(--coal2)}
.wk:hover{transform:translateY(-6px);border-color:var(--amber)}
.wk-thumb{aspect-ratio:4/3;display:flex;align-items:flex-end;padding:20px;position:relative;overflow:hidden}
.wk-thumb .en-tag{font-family:'IBM Plex Mono',monospace;font-size:.62rem;letter-spacing:.28em;color:rgba(244,239,229,.85)}
.wk-thumb::before{content:"";position:absolute;width:150%;height:150%;left:-25%;top:18%;border:2px solid rgba(244,239,229,.22);border-radius:50% 50% 0 0/100% 100% 0 0;border-bottom:0;animation:breathe 7s ease-in-out infinite}
.wk:nth-child(2) .wk-thumb::before{animation-delay:-2.3s}
.wk:nth-child(3) .wk-thumb::before{animation-delay:-4.6s}
@keyframes breathe{0%,100%{transform:translateY(0) scale(1)}50%{transform:translateY(-3%) scale(1.03)}}
.th1{background:linear-gradient(150deg,#5A4232,#8C5A38 70%,#B0703C)}
.th2{background:linear-gradient(150deg,#23201A,#3A3225 60%,#5C4625)}
.th3{background:linear-gradient(150deg,#2E2436,#4A3550 65%,#6B4A5E)}
.th4{background:linear-gradient(150deg,#2F3A2C,#4A5C42 65%,#6E7F58)}
.wk-body{padding:26px 24px 30px}
.wk-body h3{font-size:1.02rem;font-weight:700}
.wk-body p{margin-top:10px;font-size:.84rem;color:var(--mut);font-weight:300}
.wk-body .meta{margin-top:16px;font-family:'IBM Plex Mono',monospace;font-size:.64rem;letter-spacing:.2em;color:var(--amber2)}
@media(max-width:860px){.works-grid{grid-template-columns:1fr;max-width:440px;margin:0 auto}}
/* works.html 拡大カード */
.wk.lg .wk-thumb{aspect-ratio:16/9}
.works-grid.one{grid-template-columns:1fr;max-width:none;gap:60px}
.wk.lg{display:grid;grid-template-columns:1.3fr 1fr}
.wk.lg .wk-body{padding:40px 38px;display:flex;flex-direction:column;justify-content:center}
.wk.lg .wk-body h3{font-size:1.3rem}
@media(max-width:860px){.wk.lg{grid-template-columns:1fr}}

/* Flow */
.flow-sec{background:var(--coal2)}
.flow-arc{display:block;width:100%;margin-top:30px}
.flow-arc .rail{fill:none;stroke:var(--seam);stroke-width:1.5}
.flow-arc .lit{fill:none;stroke:var(--amber);stroke-width:2;stroke-dasharray:1160;stroke-dashoffset:1160;transition:stroke-dashoffset 1.8s cubic-bezier(.4,0,.2,1)}
.flow-sec.show .flow-arc .lit{stroke-dashoffset:0}
.flow-arc circle{fill:var(--coal2);stroke:var(--amber);stroke-width:2}
.flow-arc .n{font-family:'IBM Plex Mono',monospace;font-size:13px;fill:var(--amber2)}
.flow-arc .t{font-family:'Noto Sans JP',sans-serif;font-weight:700;font-size:17px;fill:var(--bone)}
.flow-arc .d{font-family:'Noto Sans JP',sans-serif;font-weight:300;font-size:12.5px;fill:var(--mut)}
.flow-arc g{opacity:0;transform:translateY(10px);transition:opacity .5s ease,transform .5s ease}
.flow-sec.show .flow-arc g{opacity:1;transform:none}
.flow-sec.show .flow-arc g:nth-of-type(1){transition-delay:.5s}
.flow-sec.show .flow-arc g:nth-of-type(2){transition-delay:.85s}
.flow-sec.show .flow-arc g:nth-of-type(3){transition-delay:1.2s}
.flow-sec.show .flow-arc g:nth-of-type(4){transition-delay:1.55s}
.flow-sp{display:none;list-style:none;margin-top:20px;border-left:2px solid var(--seam);padding-left:28px}
.flow-sp li{position:relative;padding:18px 0}
.flow-sp li::before{content:"";position:absolute;left:-35px;top:28px;width:12px;height:12px;border-radius:50%;background:var(--coal2);border:2px solid var(--amber)}
.flow-sp .n{font-family:'IBM Plex Mono',monospace;font-size:.66rem;letter-spacing:.25em;color:var(--amber2)}
.flow-sp h3{font-size:1.05rem;font-weight:700;margin-top:4px}
.flow-sp p{font-size:.85rem;color:var(--mut);font-weight:300;margin-top:4px}
@media(max-width:760px){.flow-arc{display:none}.flow-sp{display:block}}

/* FAQ */
.faq{list-style:none;border-top:1px solid var(--seam)}
.faq li{border-bottom:1px solid var(--seam)}
.faq summary{cursor:pointer;padding:26px 0;font-weight:700;font-size:1rem;display:flex;gap:18px;align-items:baseline;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"Q";font-family:'Bricolage Grotesque',sans-serif;color:var(--amber2);font-weight:800}
.faq details[open] summary{color:var(--amber2)}
.faq .a{padding:0 0 26px 34px;color:var(--mut);font-weight:300;font-size:.93rem}

/* CTA */
.cta{text-align:center;overflow:hidden;position:relative}
.cta::before{content:"";position:absolute;left:50%;bottom:-46vw;transform:translateX(-50%) translateY(8%);width:92vw;height:92vw;border-radius:50%;border:1.5px solid var(--seam);background:radial-gradient(closest-side,rgba(212,124,42,.22),transparent 72%);pointer-events:none;opacity:.5;transition:transform 1.4s ease,opacity 1.4s ease}
.cta.show::before{transform:translateX(-50%) translateY(0);opacity:1}
.cta h2{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:clamp(2.1rem,6.5vw,4.2rem);line-height:1.15;position:relative}
.cta p{margin-top:24px;color:var(--mut);font-weight:300;position:relative}
.cta .line-btn.big{margin-top:46px;position:relative;padding:18px 54px;font-size:1.05rem;animation:glow 3.2s ease-in-out infinite}
@keyframes glow{0%,100%{box-shadow:0 4px 18px rgba(6,199,85,.3)}50%{box-shadow:0 8px 34px rgba(6,199,85,.55)}}

/* Footer */
footer{border-top:1px solid var(--seam);padding:64px 0 44px}
.ft-top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;align-items:flex-start}
.ft-nav{display:flex;gap:30px;list-style:none;font-size:.8rem;color:var(--mut);flex-wrap:wrap}
.ft-nav a:hover{color:var(--bone)}
.ft .copy{margin-top:44px;font-family:'IBM Plex Mono',monospace;font-size:.68rem;letter-spacing:.2em;color:var(--mut)}

/* Reveal */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .9s ease,transform .9s ease}
.reveal.show{opacity:1;transform:none}
.stagger>.reveal:nth-child(1){transition-delay:.05s}
.stagger>.reveal:nth-child(2){transition-delay:.15s}
.stagger>.reveal:nth-child(3){transition-delay:.25s}
.stagger>.reveal:nth-child(4){transition-delay:.35s}

@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hero-arc path.main{animation:none;stroke-dashoffset:0}
  .flow-arc .lit{transition:none;stroke-dashoffset:0}
  .flow-arc g{opacity:1;transform:none;transition:none}
  .hero h1 .line>span,.kicker::before,.logo svg circle,.wk-thumb::before,.cta .line-btn.big{animation:none}
  .hero h1 .line>span{transform:none}.kicker::before{transform:none}
  .cta::before{transform:translateX(-50%);opacity:1;transition:none}
  .hero-arc{transform:none!important}
}
@media(max-width:760px){
  section{padding:90px 0}
  .page-hero{padding:130px 0 54px}
  .nw{white-space:normal;display:inline}
  .sv-detail{padding:32px 22px}
  .sv-item{padding:40px 0}
  .concept-cell{padding:40px 28px}
  .wk.lg .wk-body{padding:28px 24px}
  .contact-card{padding:80px 22px}
}