:root{--bg:#fcfbf9;--beige:#f6f2ec;--ink:#222;--sub:#6b6560;--gold:#b0822f;--line:#e6e0d6;--serif:'Shippori Mincho','Noto Serif JP',serif;--sans:'Noto Sans JP',sans-serif;--en:'Cormorant Garamond',serif}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{font-family:var(--sans);font-weight:300;color:var(--ink);background:var(--bg);line-height:1.9;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}

/* header */
.hd{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:10px clamp(20px,4vw,56px);background:rgba(252,251,249,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hd-logo img{height:44px;width:auto}
.nav{display:flex;gap:clamp(16px,2.4vw,36px);font-size:13px;letter-spacing:.08em}
.nav a{padding:6px 0;border-bottom:1px solid transparent;transition:.25s}
.nav a:hover,.nav a.on{border-color:var(--gold);color:var(--gold)}
.nav-toggle,.burger{display:none}

/* shared */
.sec{padding:clamp(64px,9vw,120px) clamp(20px,5vw,64px)}
.en{font-family:var(--en);letter-spacing:.2em;font-size:13px;color:var(--sub)}
.en.gold{color:var(--gold)}
.ttl{font-family:var(--serif);font-weight:500;font-size:clamp(24px,3vw,34px);letter-spacing:.1em;line-height:1.5;margin:6px 0 10px}
.sub{font-size:13px;color:var(--sub);letter-spacing:.06em}
.c{text-align:center}
.btn{display:inline-block;padding:15px 36px;font-family:var(--serif);font-size:14px;letter-spacing:.12em;border:1px solid var(--gold);transition:.3s}
.btn.solid{background:var(--gold);color:#fff}
.btn.solid:hover{background:#96701f}
.btn.ghost{background:#fff;color:var(--ink)}
.btn.ghost:hover{background:var(--beige)}

/* hero */
.hero{position:relative;min-height:min(86vh,720px);display:flex;align-items:center;overflow:hidden;background:var(--bg)}
.hero-img{position:absolute;inset:0 0 0 38%;background-size:cover;background-position:left center;-webkit-mask-image:linear-gradient(90deg,transparent,#000 24%);mask-image:linear-gradient(90deg,transparent,#000 24%)}
.hero-in{position:relative;padding:60px clamp(24px,7vw,110px);max-width:900px}
.hero h1{font-family:var(--serif);font-weight:400;font-size:clamp(28px,4.1vw,58px);line-height:1.6;letter-spacing:.1em;margin:22px 0 28px}
.hero h1 em{font-style:normal;color:var(--gold)}
.hero .lead{font-family:var(--serif);font-size:clamp(13px,1.3vw,16px);letter-spacing:.14em;line-height:2.1;margin-bottom:38px}
.btns{display:flex;gap:14px;flex-wrap:wrap}
.btns .btn{min-width:200px;text-align:center;padding:18px 20px}

/* numbers */
.nums{background:var(--beige)}
.num-list{display:grid;grid-template-columns:repeat(4,1fr);max-width:1000px;margin:48px auto 20px}
.num-list li{text-align:center;padding:6px 10px;border-left:1px solid var(--line);display:flex;flex-direction:column;gap:2px}
.num-list li:first-child{border-left:0}
.num-list b{font-family:var(--serif);font-weight:400;font-size:clamp(30px,4vw,48px);color:var(--gold);letter-spacing:.04em;line-height:1.3}
.num-list b small{font-size:.5em;margin-left:2px}
.num-list span{font-size:12px;letter-spacing:.12em}
.num-list i{font-style:normal;font-size:12px;color:var(--sub);letter-spacing:.08em}
.note{max-width:1000px;margin:16px auto 0;text-align:right;font-size:11px;color:var(--sub)}

/* works */
.works{max-width:1240px;margin:0 auto}
.work-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,2.4vw,32px);margin:44px 0 52px}
.work{display:block}
.work img{width:100%;aspect-ratio:1.72;object-fit:cover;transition:transform .5s}
.work{overflow:hidden}
.work:hover img{transform:scale(1.03)}
.work h3{font-family:var(--serif);font-weight:500;font-size:15px;letter-spacing:.06em;margin:12px 0 2px;line-height:1.6}
.work p{font-size:12px;color:var(--sub);line-height:1.7}
.more{margin-top:8px}

/* services */
.services{background:var(--beige)}
.panel{max-width:1100px;margin:0 auto;background:#fff;padding:clamp(36px,5vw,64px) clamp(20px,4vw,56px);border:1px solid var(--line)}
.svc-list{display:grid;grid-template-columns:repeat(5,1fr);margin:44px 0 28px}
.svc-list li{padding:0 14px;text-align:center;border-left:1px solid var(--line)}
.svc-list li:first-child{border-left:0}
.svc-list svg{width:44px;height:44px;margin:0 auto 14px;fill:none;stroke:var(--gold);stroke-width:1.3;stroke-linecap:round;stroke-linejoin:round}
.svc-list h3{font-family:var(--serif);font-weight:500;font-size:14px;letter-spacing:.06em;margin-bottom:8px}
.svc-list p{font-size:12px;color:var(--sub);line-height:1.8}
.ai-note{text-align:center;font-size:12px;color:var(--sub);border:1px solid var(--line);padding:10px 14px;max-width:560px;margin:0 auto}

/* philosophy */
.think{max-width:1100px;margin:0 auto}
.think-list{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:44px}
.think-list b{font-family:var(--en);font-size:34px;font-weight:400;color:var(--gold);line-height:1}
.think-list h3{font-family:var(--serif);font-weight:500;font-size:16px;letter-spacing:.08em;margin:10px 0 8px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.think-list p{font-size:12.5px;color:var(--sub);line-height:1.95}

/* about */
.about{background:var(--beige)}
.about-in{max-width:1000px;margin:0 auto;display:grid;grid-template-columns:minmax(0,340px) 1fr;gap:clamp(28px,5vw,72px);align-items:center}
.portrait{width:100%;aspect-ratio:1;object-fit:cover;border-radius:2px}
.about p{font-size:14px;line-height:2.1;margin-top:14px}
.skills{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.skills li{font-size:12px;letter-spacing:.06em;border:1px solid var(--line);background:#fff;padding:4px 14px}

/* contact */
.contact{text-align:center}
.contact .btn.wide{margin:30px 0 56px}
.form-wrap{max-width:720px;margin:0 auto;border:1px solid var(--line);background:#fff}
.form-wrap iframe{display:block;width:100%;height:1100px;border:0}

/* footer */
.ft{border-top:1px solid var(--line);background:var(--bg);text-align:center;padding:40px 20px 28px}
.ft img{height:38px;margin:0 auto 18px;width:auto}
.ft nav{display:flex;gap:22px;justify-content:center;flex-wrap:wrap;font-size:12px;letter-spacing:.08em;margin-bottom:18px}
.ft p{font-size:11px;color:var(--sub);font-family:var(--en);letter-spacing:.08em}

/* tablet */
@media(max-width:960px){
  .svc-list{grid-template-columns:repeat(3,1fr);row-gap:32px}
  .svc-list li:nth-child(4){border-left:0}
  .think-list{grid-template-columns:repeat(2,1fr)}
  .work-grid{grid-template-columns:repeat(2,1fr)}
}
/* mobile */
@media(max-width:720px){
  .hd{padding:8px 18px}
  .hd-logo img{height:38px}
  .burger{display:flex;flex-direction:column;gap:5px;cursor:pointer;padding:10px}
  .burger span{display:block;width:22px;height:1.5px;background:var(--ink);transition:.3s}
  .nav{position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;background:var(--bg);border-bottom:1px solid var(--line);max-height:0;overflow:hidden;transition:max-height .35s}
  .nav a{padding:14px 24px;border-bottom:1px solid var(--line);font-size:14px}
  .nav-toggle:checked~.nav{max-height:340px}
  .nav-toggle:checked~.burger span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
  .nav-toggle:checked~.burger span:nth-child(2){opacity:0}
  .nav-toggle:checked~.burger span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

  .hero{flex-direction:column;align-items:stretch;min-height:0}
  .hero-img{position:relative;inset:auto;height:62vw;-webkit-mask-image:linear-gradient(180deg,#000 70%,transparent);mask-image:linear-gradient(180deg,#000 70%,transparent);background-position:center}
  .hero-in{padding:8px 24px 44px}
  .hero h1{letter-spacing:.1em;margin:14px 0 18px}
  .btns .btn{flex:1 1 100%}
  .num-list{grid-template-columns:repeat(2,1fr);row-gap:28px}
  .num-list li:nth-child(3){border-left:0}
  .work-grid{grid-template-columns:1fr}
  .svc-list{grid-template-columns:repeat(2,1fr)}
  .svc-list li{border-left:0}
  .think-list{grid-template-columns:1fr}
  .about-in{grid-template-columns:1fr}
  .portrait{max-width:300px}
  .form-wrap iframe{height:1250px}
}

/* sub pages */
.ph{text-align:center;padding:clamp(56px,8vw,104px) 20px clamp(40px,5vw,64px);background:var(--beige);border-bottom:1px solid var(--line)}
.ph h1{font-family:var(--serif);font-weight:500;font-size:clamp(26px,3.6vw,40px);letter-spacing:.14em;margin-top:6px}
.ph p.sub{margin-top:12px}
.wrap{max-width:1000px;margin:0 auto}
.w-row{display:grid;grid-template-columns:minmax(0,280px) 1fr;gap:clamp(24px,5vw,64px);align-items:center;padding:clamp(32px,4vw,52px) 0;border-bottom:1px solid var(--line)}
.w-row:last-of-type{border-bottom:0}
.w-vid{position:relative;width:100%;aspect-ratio:9/16;background:#111}
.w-vid iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.w-body .n{font-family:var(--en);font-size:15px;letter-spacing:.2em;color:var(--gold)}
.w-body h2{font-family:var(--serif);font-weight:500;font-size:clamp(19px,2.2vw,26px);letter-spacing:.08em;line-height:1.5;margin:4px 0 2px}
.w-body .k{font-size:12px;color:var(--sub);letter-spacing:.1em;margin-bottom:14px}
.w-body .d{font-size:14px;line-height:2.1;margin-bottom:14px}
.w-body .s{font-size:12.5px;color:var(--sub);line-height:1.9;border-top:1px solid var(--line);padding-top:12px}
.w-body .s b{color:var(--ink);font-weight:500;margin-right:.9em}
.s-row{display:grid;grid-template-columns:72px 1fr;gap:clamp(20px,4vw,48px);padding:clamp(28px,3.6vw,44px) 0;border-bottom:1px solid var(--line);align-items:start}
.s-row svg{width:56px;height:56px;fill:none;stroke:var(--gold);stroke-width:1.2;stroke-linecap:round;stroke-linejoin:round}
.s-row h2{font-family:var(--serif);font-weight:500;font-size:clamp(18px,2vw,23px);letter-spacing:.08em;margin-bottom:8px}
.s-row p{font-size:14px;line-height:2.05;color:#444}
.s-row ul{display:flex;flex-wrap:wrap;gap:6px 8px;margin-top:12px}
.s-row li{font-size:11.5px;border:1px solid var(--line);background:#fff;padding:2px 12px;color:var(--sub)}
.flow{margin-top:clamp(56px,8vw,96px)}
.flow-list{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:32px}
.flow-list li{border-top:1px solid var(--gold);padding-top:14px}
.flow-list b{font-family:var(--en);color:var(--gold);font-size:22px;font-weight:400}
.flow-list h3{font-family:var(--serif);font-weight:500;font-size:15px;letter-spacing:.06em;margin:4px 0 6px}
.flow-list p{font-size:12.5px;color:var(--sub);line-height:1.9}
.prof{margin-top:28px;border-top:1px solid var(--line)}
.prof div{display:grid;grid-template-columns:110px 1fr;gap:16px;padding:12px 0;border-bottom:1px solid var(--line);font-size:13.5px}
.prof dt{color:var(--sub);letter-spacing:.1em}
.exp{display:grid;grid-template-columns:repeat(5,1fr);gap:0;margin-top:56px;border:1px solid var(--line);background:#fff}
.exp li{padding:22px 10px;text-align:center;border-left:1px solid var(--line);font-size:12px;color:var(--sub);letter-spacing:.08em}
.exp li:first-child{border-left:0}
.exp b{display:block;font-family:var(--serif);font-weight:400;font-size:26px;color:var(--gold);letter-spacing:.04em;line-height:1.4}
.cta{text-align:center;margin-top:clamp(48px,6vw,80px)}
@media(max-width:960px){.flow-list{grid-template-columns:repeat(2,1fr)}.exp{grid-template-columns:repeat(3,1fr)}.exp li:nth-child(4){border-left:0}.exp li:nth-child(n+4){border-top:1px solid var(--line)}}
@media(max-width:720px){
  .w-row{grid-template-columns:1fr}
  .w-vid{max-width:260px;margin:0 auto}
  .s-row{grid-template-columns:1fr;gap:12px}
  .s-row svg{width:44px;height:44px}
  .flow-list{grid-template-columns:1fr}
  .prof div{grid-template-columns:84px 1fr}
  .exp{grid-template-columns:repeat(2,1fr)}
  .exp li{border-left:0;border-top:1px solid var(--line)}
  .exp li:nth-child(odd){border-right:1px solid var(--line)}
  .exp li:first-child,.exp li:nth-child(2){border-top:0}
}
.ph+.sec{padding-top:clamp(16px,3vw,36px)}