:root{
  --bg:#ffffff; --ink:#111111; --text:#222222; --muted:#666666; --line:#dfdfdf; --fill:#f0f0f0;
  --pad:80px;
  --ja:'Noto Sans JP','Hiragino Kaku Gothic ProN','Hiragino Sans','Yu Gothic',sans-serif;
  --en:'Inter','Helvetica Neue',Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--ja);font-weight:300;-webkit-font-smoothing:antialiased;line-height:1.7}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
p{margin:0}
h1,h2,h3{margin:0}
.en{font-family:var(--en)}
.sp{display:none}
.gray{filter:none}
.wrap{padding-left:var(--pad);padding-right:var(--pad)}
.arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:400;transition:color .2s}
.arrow::after{content:"→";font-family:var(--en)}
.arrow:hover{color:var(--muted)}
.back{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:400;color:var(--muted)}
.back::before{content:"←";font-family:var(--en)}
.back:hover{color:var(--ink)}
.btn{display:inline-flex;align-items:center;gap:10px;background:var(--ink);color:#fff;padding:14px 22px;border-radius:6px;font-size:14px;font-weight:500;transition:opacity .2s;white-space:nowrap;border:0;cursor:pointer;font-family:var(--ja)}
.btn::after{content:"→";font-family:var(--en)}
.btn:hover{opacity:.8}
.btn.light{background:#fff;color:var(--ink)}
.btn:disabled{opacity:.5;cursor:default}
.btn.line{background:#fff;color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink);transition:background .2s,color .2s}
.btn.line:hover{background:var(--ink);color:#fff;opacity:1}
.li .btn{align-self:flex-start;margin-top:8px}

/* header */
.hd{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.9);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.hd-in{height:80px;display:flex;justify-content:space-between;align-items:center;padding-left:40px;padding-right:40px}
.logo img{height:16px;width:auto}
.hd-r{display:flex;align-items:center;gap:28px}
.hd .btn{padding:10px 16px;font-size:13px}
.burger{background:none;border:0;padding:10px 0;cursor:pointer;width:28px;display:flex;flex-direction:column;gap:6px}
.burger span{display:block;height:1px;background:var(--ink)}
.burger.close{gap:0;justify-content:center;height:32px}
.burger.close span:first-child{transform:translateY(.5px) rotate(45deg)}
.burger.close span:last-child{transform:translateY(-.5px) rotate(-45deg)}
.menu{display:none;position:fixed;inset:0;background:#fff;z-index:30;padding:0 40px 40px;flex-direction:column;overflow:auto}
.menu.open{display:flex}
.menu-top{display:flex;justify-content:space-between;align-items:center;height:80px}
.menu-list{display:flex;flex-direction:column;margin-top:24px;border-top:1px solid var(--line)}
.menu-list a{display:flex;justify-content:space-between;align-items:baseline;padding:22px 0;border-bottom:1px solid var(--line);font-size:22px;font-weight:400}
.menu-list a small{font-family:var(--en);font-size:12px;color:var(--muted)}
.menu-list a:hover{color:var(--muted)}
.menu-foot{margin-top:auto;padding-top:32px}

/* hero (top) */
.hero{padding-top:120px;padding-bottom:72px;max-width:1260px}
.hero .lab{font-family:var(--en);font-size:13px;font-weight:500;color:var(--muted);margin-bottom:28px}
.hero h1{margin:0 0 28px;font-size:clamp(32px,4.4vw,64px);line-height:1.35;font-weight:500;letter-spacing:-.02em}
.hero p{font-size:17px;line-height:2.1;color:var(--text);margin-bottom:20px}
.hero p:last-of-type{margin-bottom:36px}
.hero-act{display:flex;align-items:center;gap:28px;flex-wrap:wrap}
.wm{display:flex;justify-content:space-between;align-items:flex-end;padding-bottom:40px}
.wm img{height:clamp(40px,6vw,88px);width:auto}
.wm .k{font-size:12px;color:var(--muted);letter-spacing:.3em;white-space:nowrap}
.hero-img{width:100%;height:640px;object-fit:cover;object-position:50% 55%;border-radius:4px}

/* page hero (sub pages) */
.phero{padding-top:96px;padding-bottom:64px;max-width:1000px}
.phero .lab{font-family:var(--en);font-size:13px;font-weight:500;color:var(--muted);margin-bottom:24px}
.phero h1{font-size:clamp(30px,3.6vw,52px);line-height:1.4;font-weight:500;letter-spacing:-.02em;margin-bottom:24px}
.phero p{font-size:16px;line-height:2.1;color:var(--text);max-width:760px}

/* sections */
.sec{padding-top:120px;padding-bottom:40px}
.sec.first{padding-top:24px}
.st{display:flex;justify-content:space-between;align-items:baseline;padding-bottom:20px;border-bottom:1px solid var(--ink);margin-bottom:56px}
.st .t{font-family:var(--en);font-size:22px;font-weight:500;letter-spacing:-.01em}
.st .j{font-size:13px;color:var(--muted);letter-spacing:.06em}
.h2{font-size:clamp(26px,3.4vw,48px);line-height:1.5;font-weight:500;letter-spacing:-.01em}
.sub{font-size:20px;font-weight:400;color:var(--text);margin:32px 0}
.body{font-size:16px;line-height:2.1;color:var(--text);max-width:760px}
.body p+p{margin-top:20px}
.note{font-size:13px;color:var(--muted);line-height:1.8}

/* lists */
.list{display:flex;flex-direction:column}
.li{display:flex;flex-direction:column;gap:12px;padding:0 0 36px;margin-bottom:36px;border-bottom:1px solid var(--line)}
.li:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.li .e{font-family:var(--en);font-size:12px;color:var(--muted);letter-spacing:.04em}
.li h3{font-size:24px;font-weight:500;letter-spacing:-.01em}
.li p{font-size:15px;line-height:2;color:var(--text);max-width:760px}
.li .arrow{margin-top:4px}
.li .soon{font-size:14px;color:var(--muted)}
.steps .li h3::before{content:attr(data-n);font-family:var(--en);color:var(--muted);font-weight:400;margin-right:14px}

/* cards */
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:48px 32px}
.card{display:flex;flex-direction:column;gap:14px}
.card img{width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--fill);transition:opacity .3s}
.card:hover img{opacity:.85}
.card h3{font-size:15px;font-weight:500;line-height:1.6}
.card .m{font-size:12px;color:var(--muted);letter-spacing:.04em;display:flex;gap:12px;flex-wrap:wrap}
.more{display:flex;justify-content:center;padding-top:56px}
.plain{display:flex;flex-direction:column;gap:12px}
.plain .t{font-size:16px;font-weight:500}

/* about */
.about img{width:360px;aspect-ratio:4/5;object-fit:cover;border-radius:4px;margin-bottom:36px}
.name{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap;margin-bottom:36px}
.name .n{font-family:var(--en);font-size:28px;font-weight:500;letter-spacing:-.01em}
.name .k{font-size:13px;color:var(--muted)}
.about .body{font-size:15px;line-height:2}
.about .body p+p{margin-top:16px}
.cred{margin-top:36px;font-size:13px;line-height:1.9;color:var(--muted)}

/* blog */
.blog-item{display:flex;flex-direction:column;gap:6px;padding:0 0 26px;margin-bottom:26px;border-bottom:1px solid var(--line)}
.blog-item:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.blog-item:hover .blog-title{color:var(--muted)}
.blog-item .d{font-size:13px;color:var(--muted);letter-spacing:.04em;display:flex;gap:12px}
.blog-date{font-family:var(--en)}
.blog-title{font-size:17px;font-weight:400;line-height:1.7;transition:color .2s;min-width:0;overflow-wrap:anywhere}

/* article (works detail) */
.article{max-width:880px;padding-top:80px}
.article .meta{display:flex;gap:16px;align-items:baseline;font-size:13px;color:var(--muted);margin-bottom:20px;flex-wrap:wrap}
.article .meta .y{font-family:var(--en);font-size:15px}
.article h1{font-size:clamp(26px,3.2vw,40px);line-height:1.5;font-weight:500;letter-spacing:-.01em;margin-bottom:40px}
.article .fig{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:4px;margin-bottom:48px;background:var(--fill)}
.article .fig.wide{aspect-ratio:16/9}
.article .body{font-size:16px;line-height:2.1}
.article .video{margin:48px 0;aspect-ratio:16/9;width:100%;border:0;border-radius:4px;background:var(--fill)}
.article .cap{font-size:13px;color:var(--muted);margin:-40px 0 48px}
.article .links{display:flex;flex-direction:column;gap:12px;margin-top:40px;padding-top:32px;border-top:1px solid var(--line)}
.article .foot{margin-top:72px}

/* form */
.form{max-width:640px;display:flex;flex-direction:column;gap:28px}
.form label{display:flex;flex-direction:column;gap:10px;font-size:14px;font-weight:400}
.form label .lt{display:flex;align-items:baseline;gap:8px}
.form label .req{color:var(--muted);font-size:12px}
.form input,.form textarea{width:100%;border:1px solid var(--line);border-radius:6px;padding:14px 16px;font:inherit;font-size:16px;color:var(--ink);background:#fff;outline:none}
.form input:focus,.form textarea:focus{border-color:var(--ink)}
.form textarea{min-height:200px;resize:vertical}
.form .act{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:8px}
.form .alt{font-size:13px;color:var(--muted)}
.sent{display:none;position:fixed;inset:0;background:rgba(17,17,17,.6);z-index:40;align-items:center;justify-content:center;padding:20px}
.sent.show{display:flex}
.sent .box{background:#fff;border-radius:8px;padding:40px;max-width:480px;width:100%;display:flex;flex-direction:column;gap:16px}
.sent .box h2{font-size:22px;font-weight:500}
.sent .box p{font-size:15px;line-height:1.9;color:var(--text)}

/* terms */
.dl{max-width:880px}
.dl .row{display:flex;flex-direction:column;gap:10px;padding:0 0 28px;margin-bottom:28px;border-bottom:1px solid var(--line)}
.dl .row:last-child{border-bottom:0}
.dl .row .k{font-size:13px;color:var(--muted);letter-spacing:.04em}
.dl .row .v{font-size:15px;line-height:2;color:var(--text)}
.dl .row .v p+p{margin-top:8px}

/* contact band + footer */
.contact{margin-top:120px;background:var(--ink);color:#fff;padding-top:120px;padding-bottom:120px}
.contact .l{font-family:var(--en);font-size:14px;letter-spacing:.08em;color:#bbb;margin-bottom:32px}
.contact h2{margin:0 0 32px;font-size:clamp(26px,3.3vw,48px);line-height:1.5;font-weight:400}
.contact p{font-size:16px;line-height:2;color:#ccc;max-width:720px;margin-bottom:32px}
.contact .btn{padding:16px 26px;font-size:15px}
.ft{padding-top:32px;padding-bottom:40px;display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted);gap:24px;flex-wrap:wrap}
.ft img{height:14px;width:auto}
.ft-links{display:flex;gap:32px;flex-wrap:wrap}
.ft a:hover{color:var(--ink)}

/* reveal */
.js .rv{opacity:0;transform:translateY(14px);transition:opacity .8s ease,transform .8s ease}
.js .rv.in{opacity:1;transform:none}

@media (max-width:1100px){
  :root{--pad:40px}
  .hero-img{height:480px}
  .grid{gap:36px 24px}
}
@media (max-width:760px){
  :root{--pad:20px}
  .sp{display:inline}
  .hd-in{height:60px;padding-left:20px;padding-right:20px}
  .logo img{height:14px}
  .hd-r{gap:18px}
  .hd .btn{padding:8px 12px;font-size:12px}
  .menu{padding:0 20px 32px}
  .menu-top{height:60px}
  .menu-list a{font-size:18px;padding:18px 0}
  .hero{padding-top:56px;padding-bottom:40px}
  .hero .lab{font-size:12px;margin-bottom:18px}
  .hero h1{font-size:32px;line-height:1.45;margin-bottom:18px}
  .hero p{font-size:14px;line-height:2;margin-bottom:14px}
  .hero p:last-of-type{margin-bottom:26px}
  .hero-act{gap:18px}
  .wm{flex-direction:column;align-items:flex-start;gap:10px;padding-bottom:24px}
  .wm img{height:36px}
  .wm .k{letter-spacing:.2em;font-size:11px}
  .hero-img{height:300px}
  .phero{padding-top:56px;padding-bottom:40px}
  .phero h1{font-size:28px}
  .phero p{font-size:14px}
  .sec{padding-top:72px;padding-bottom:24px}
  .st{padding-bottom:14px;margin-bottom:32px}
  .st .t{font-size:18px}
  .st .j{font-size:12px}
  .h2{font-size:26px}
  .sub{font-size:16px;margin:20px 0}
  .body{font-size:14px;line-height:2}
  .li{padding:0 0 26px;margin-bottom:26px;gap:8px}
  .li h3{font-size:20px}
  .li p{font-size:13px}
  .grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 16px}
  .card{gap:10px}
  .card h3{font-size:13px;line-height:1.5}
  .card .m{font-size:11px;gap:8px}
  .more{padding-top:36px}
  .about img{width:100%;max-width:360px;margin-bottom:24px}
  .name{gap:8px;margin-bottom:20px}
  .name .n{font-size:24px}
  .about .body{font-size:14px}
  .cred{font-size:12px;margin-top:24px}
  .blog-item{padding:0 0 20px;margin-bottom:20px}
  .blog-title{font-size:15px}
  .article{padding-top:40px}
  .article h1{font-size:24px;margin-bottom:24px}
  .article .fig{margin-bottom:28px}
  .article .body{font-size:14px;line-height:2}
  .article .video{margin:28px 0}
  .article .cap{margin:-20px 0 28px}
  .contact{margin-top:72px;padding-top:72px;padding-bottom:72px}
  .contact h2{font-size:24px}
  .contact p{font-size:14px}
  .ft{flex-direction:column;align-items:flex-start;gap:16px;padding-top:24px;padding-bottom:32px;font-size:11px}
  .ft-links{gap:16px}
}