:root{
  --ink:#0A1A2F; --ink-2:#22344c; --sky:#1668E3; --sky-2:#5AA0FF; --sky-soft:#EAF2FF;
  --paper:#F4F7FC; --white:#fff; --coral:#FF6A3D; --mist:#5E6E85; --line:#E4EAF3; --dark:#0B1526;
  --disp:'Space Grotesk','Zen Kaku Gothic New',system-ui,sans-serif;
  --jp:'Zen Kaku Gothic New','Noto Sans JP',system-ui,sans-serif;
  --body:'Noto Sans JP',system-ui,-apple-system,sans-serif;
  --wrap:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--body);color:var(--ink);background:var(--paper);line-height:1.8;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--sky);text-decoration:none}
h1,h2,h3{font-family:var(--jp);line-height:1.2;letter-spacing:.01em}
::selection{background:var(--sky);color:#fff}

/* header */
.hd{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:18px;padding:14px 30px;background:rgba(255,255,255,.72);backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid transparent;transition:.3s}
.hd.scrolled{border-bottom-color:var(--line);box-shadow:0 6px 24px rgba(10,26,47,.06);padding:10px 30px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink)}
.brand b{font-family:var(--jp);font-weight:900;font-size:17px}
.nav{display:flex;gap:6px;flex:1;justify-content:center}
.nav a{position:relative;display:flex;flex-direction:column;align-items:center;line-height:1.1;color:var(--ink-2);padding:8px 12px;border-radius:10px;transition:.2s}
.nav a:hover,.nav a.active{background:var(--sky-soft);color:var(--sky)}
.nav-en{font-family:var(--disp);font-weight:700;font-size:13px;letter-spacing:.04em}
.nav-jp{font-size:9.5px;color:var(--mist)}
.hd-right{display:flex;align-items:center;gap:12px}
.search{display:flex}.search input{width:96px;padding:8px 10px;border:1px solid var(--line);border-right:0;border-radius:9px 0 0 9px;background:#fff;font:inherit;transition:width .25s}.search input:focus{width:150px;outline:none;border-color:var(--sky)}
.search button{border:1px solid var(--line);border-left:0;border-radius:0 9px 9px 0;background:#fff;padding:0 12px;cursor:pointer;color:var(--sky)}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.burger span{width:24px;height:2px;background:var(--ink);transition:.3s}

.main{max-width:var(--wrap);margin:0 auto;padding:0 24px 90px}
.main-wide{max-width:none;padding:0 0 90px}
.crumbs{max-width:var(--wrap);margin:0 auto;display:flex;gap:9px;font-size:12.5px;color:var(--mist);padding:22px 24px 4px}
.crumbs a{color:var(--mist)}.crumbs span{color:#b9c4d4}

/* hero */
.hero{position:relative;overflow:hidden;color:#fff;min-height:88vh;display:flex;align-items:center;background:linear-gradient(180deg,#0e4fb0 0%,#1668E3 45%,#4a94f2 100%)}
.sky{position:absolute;inset:0;overflow:hidden}
.sun{position:absolute;top:14%;right:12%;width:180px;height:180px;border-radius:50%;background:radial-gradient(circle,#FFE7A8,#FFD37E 60%,rgba(255,211,126,0));filter:blur(2px);animation:sun 8s ease-in-out infinite}
@keyframes sun{0%,100%{transform:scale(1);opacity:.95}50%{transform:scale(1.08);opacity:1}}
.cloud{position:absolute;background:#fff;border-radius:100px;opacity:.85;filter:blur(1px)}
.cloud::before,.cloud::after{content:"";position:absolute;background:#fff;border-radius:100px}
.c1{width:150px;height:44px;top:22%;left:-160px;animation:drift 34s linear infinite}
.c1::before{width:70px;height:70px;top:-30px;left:26px}.c1::after{width:52px;height:52px;top:-20px;left:82px}
.c2{width:110px;height:34px;top:44%;left:-140px;opacity:.7;animation:drift 46s linear infinite 6s}
.c2::before{width:52px;height:52px;top:-22px;left:20px}
.c3{width:190px;height:52px;top:64%;left:-220px;opacity:.6;animation:drift 60s linear infinite 3s}
.c3::before{width:80px;height:80px;top:-36px;left:34px}.c3::after{width:60px;height:60px;top:-24px;left:104px}
@keyframes drift{to{transform:translateX(130vw)}}
.hills{position:absolute;bottom:0;left:0;width:100%;height:40%}
.bird{position:absolute;color:#fff;opacity:.5;font-size:22px;transform:rotate(-8deg)}
.b1{top:34%;left:28%;animation:fly 18s linear infinite}.b2{top:40%;left:20%;font-size:16px;animation:fly 24s linear infinite 4s}
@keyframes fly{from{transform:translate(-10vw,0) rotate(-8deg)}to{transform:translate(90vw,-40px) rotate(-8deg)}}
.hero-in{position:relative;max-width:var(--wrap);margin:0 auto;padding:60px 24px;width:100%}
.hero-eyebrow{font-family:var(--disp);font-weight:700;letter-spacing:.18em;font-size:13px;opacity:.9;margin-bottom:18px}
.hero-h{font-size:clamp(44px,8vw,104px);font-weight:900;margin:0;letter-spacing:.01em;text-shadow:0 6px 30px rgba(6,30,70,.28)}
.hero-h .hl{color:#FFE7A8}
.hero-p{max-width:560px;margin:24px 0 34px;font-size:17px;opacity:.96}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-scroll{position:absolute;left:24px;bottom:-30px;font-family:var(--disp);letter-spacing:.1em;font-size:12px;opacity:.85;animation:bob 2s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(6px)}}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--jp);font-weight:700;padding:13px 26px;border-radius:999px;border:1.5px solid transparent;cursor:pointer;transition:.2s;font-size:15px}
.btn-lg{padding:16px 34px;font-size:16px}.btn-sm{padding:9px 16px;font-size:13px}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 8px 22px rgba(255,106,61,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(255,106,61,.4)}
.btn-ghost{color:#fff;border-color:rgba(255,255,255,.7)}.btn-ghost:hover{background:rgba(255,255,255,.14)}
.btn-dark{background:var(--ink);color:#fff}.btn-dark:hover{background:#152a45}
.hd-cta{color:#fff}

/* sections */
.sec{max-width:var(--wrap);margin:0 auto;padding:78px 24px}
.main-wide .sec{padding-left:24px;padding-right:24px}
.sec-tint{max-width:none;background:linear-gradient(180deg,#fff,var(--sky-soft));border-block:1px solid var(--line)}
.sec-tint>*{max-width:var(--wrap);margin-inline:auto}
.sec-dark{max-width:none;background:var(--dark);color:#fff}
.sec-dark>*{max-width:var(--wrap);margin-inline:auto}
.eyebrow{display:flex;align-items:center;gap:10px;font-family:var(--disp);font-weight:700;letter-spacing:.12em;font-size:13px;text-transform:uppercase;margin-bottom:26px;color:var(--sky)}
.sec-dark .eyebrow{color:var(--sky-2)}
.eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--coral)}
.eyebrow i{font-style:normal;font-family:var(--jp);color:var(--mist);font-weight:500;letter-spacing:0}
.sec-dark .eyebrow i{color:#9fb3cf}
.big{font-size:clamp(26px,3.4vw,42px);font-weight:900;margin:0}
.big em{color:var(--sky);font-style:normal}
.center{text-align:center}
.lead-row{display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:end;margin-bottom:44px}
.lead-txt{color:var(--mist);font-size:16px;margin:0}

/* marquee */
.marquee-wrap{background:#fff;border-bottom:1px solid var(--line);overflow:hidden}
.marquee{overflow:hidden}
.marquee-in{display:flex;gap:56px;align-items:center;padding:22px 0;width:max-content;animation:scrollx 30s linear infinite}
.clogo{height:26px;width:auto;opacity:.55;filter:grayscale(1);transition:.2s}.clogo:hover{opacity:1;filter:none}
@keyframes scrollx{to{transform:translateX(-50%)}}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 22px;text-align:center}
.stat-n{font-family:var(--disp);font-weight:700;font-size:44px;color:var(--sky);line-height:1}
.stat-l{margin-top:8px;color:var(--mist);font-size:13px}

/* tabs */
.tabs{}
.tab-btns{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px}
.tab-btn{font-family:var(--jp);font-weight:700;padding:11px 20px;border-radius:999px;border:1.5px solid var(--line);background:#fff;color:var(--ink-2);cursor:pointer;transition:.2s}
.tab-btn.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.tab-panel{display:none;grid-template-columns:1fr 1.1fr;gap:40px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:22px;padding:30px;box-shadow:0 12px 40px rgba(10,26,47,.05)}
.tab-panel.on{display:grid}
.tp-art img{border-radius:14px}
.tp-en{font-family:var(--disp);font-weight:700;letter-spacing:.1em;color:var(--coral);font-size:13px}
.tp-body h3{font-size:26px;margin:6px 0 10px}
.tp-body ul{margin:14px 0 18px;padding:0;list-style:none}
.tp-body li{padding-left:24px;position:relative;color:var(--ink-2)}
.tp-body li::before{content:"✓";position:absolute;left:0;color:var(--sky);font-weight:700}
.link-arrow{font-family:var(--jp);font-weight:700;color:var(--sky)}

/* reel */
.reel{overflow-x:auto;scrollbar-width:none;margin:0 -24px;padding:4px 24px 14px;cursor:grab}
.reel::-webkit-scrollbar{display:none}
.reel.drag{cursor:grabbing}
.reel-track{display:flex;gap:20px;width:max-content}
.reel-card{width:340px;flex:none;background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;color:var(--ink);transition:.25s}
.reel-card:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(10,26,47,.12)}
.reel-card img{aspect-ratio:4/3;object-fit:cover}
.reel-meta{padding:16px 18px}.reel-meta h3{font-size:18px;margin:8px 0 0}
.chip{display:inline-block;font-family:var(--disp);font-weight:700;font-size:11px;letter-spacing:.06em;padding:4px 10px;border-radius:999px;background:var(--sky-soft);color:var(--sky)}
.chip-o{background:#FFEDE6;color:var(--coral)}

/* process */
.process{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:18px;counter-reset:p}
.process li{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:22px}
.pn{font-family:var(--disp);font-weight:700;font-size:15px;color:var(--sky-2);letter-spacing:.08em}
.process h3{font-size:18px;margin:10px 0 8px;color:#fff}
.process p{margin:0;color:#a9bcd6;font-size:13.5px}

/* quotes */
.quotes{position:relative;text-align:center;max-width:760px;margin:0 auto;min-height:200px}
.quote{display:none;margin:0}
.quote.on{display:block;animation:fade .5s ease}
.quote p{font-family:var(--jp);font-weight:700;font-size:clamp(20px,3vw,30px);line-height:1.6;color:var(--ink)}
.quote cite{display:block;margin-top:16px;color:var(--mist);font-style:normal}
.quote-dots{display:flex;gap:8px;justify-content:center;margin-top:24px}
.qd{width:9px;height:9px;border-radius:50%;border:0;background:var(--line);cursor:pointer}.qd.on{background:var(--sky);width:26px;border-radius:6px}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* team */
.team{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.member{margin:0;background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden}
.member img{aspect-ratio:1/1;object-fit:cover;background:var(--sky-soft)}
.member figcaption{padding:18px 20px}
.member b{font-family:var(--jp);font-size:18px}
.member span{display:block;font-family:var(--disp);font-size:12px;color:var(--coral);letter-spacing:.06em;margin:2px 0 8px}
.member p{margin:0;color:var(--mist);font-size:13.5px}

/* cta band */
.cta-band{max-width:none;background:linear-gradient(120deg,var(--ink),#123a6b);color:#fff}
.cta-in{max-width:var(--wrap);margin:0 auto;padding:72px 24px;text-align:center}
.cta-in h2{font-size:clamp(28px,4vw,46px);font-weight:900;margin:0 0 12px}
.cta-in p{color:#c6d6ee;margin:0 0 26px}

/* page hero (inner) */
.page-hero{padding:64px 0 40px;border-bottom:1px solid var(--line);margin-bottom:8px}
.ph-eyebrow{font-family:var(--disp);font-weight:700;letter-spacing:.16em;color:var(--coral);font-size:13px;margin-bottom:12px}
.page-hero h1{font-size:clamp(32px,5vw,56px);font-weight:900;margin:0}
.page-hero p{color:var(--mist);font-size:17px;margin:14px 0 0;max-width:640px}

/* filters + gallery + lightbox */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px}
.fchip{font-family:var(--disp);font-weight:700;font-size:13px;padding:9px 18px;border-radius:999px;border:1.5px solid var(--line);background:#fff;cursor:pointer;transition:.2s}
.fchip.on{background:var(--sky);color:#fff;border-color:var(--sky)}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.gitem{margin:0}.gitem.hide{display:none}
.gbtn{position:relative;display:block;width:100%;padding:0;border:0;background:none;cursor:zoom-in;border-radius:16px;overflow:hidden}
.gbtn img{aspect-ratio:4/3;object-fit:cover;transition:.4s}
.gbtn:hover img{transform:scale(1.05)}
.gover{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;gap:8px;padding:18px;background:linear-gradient(transparent,rgba(10,26,47,.7));color:#fff;opacity:0;transition:.3s;text-align:left}
.gbtn:hover .gover{opacity:1}.gover b{font-family:var(--jp);font-size:18px}
.gitem figcaption{padding:12px 2px 0}.gitem figcaption a{font-weight:700;color:var(--ink)}
.lightbox{position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;background:rgba(6,18,38,.86);padding:30px}
.lightbox.open{display:flex}
.lightbox img{max-width:min(900px,92vw);max-height:80vh;border-radius:12px;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.lightbox figcaption{color:#fff;text-align:center;margin-top:14px;font-family:var(--jp)}
.lb-close{position:absolute;top:22px;right:26px;background:#fff;border:0;width:42px;height:42px;border-radius:50%;font-size:18px;cursor:pointer}

/* work detail */
.work-hero{padding:60px 0 30px}
.work-hero h1{font-size:clamp(30px,5vw,52px);font-weight:900;margin:12px 0 10px}
.work-hero p{color:var(--mist);font-size:17px;max-width:640px}
.tagrow{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.tag{font-size:12px;color:var(--ink-2);border:1px solid var(--line);padding:5px 12px;border-radius:999px;background:#fff}
.work-cover img{width:100%;border-radius:22px}

/* cards / split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.split-art img{border-radius:20px}
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.svc-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px;color:var(--ink);transition:.25s}
.svc-card:hover{transform:translateY(-4px);box-shadow:0 16px 44px rgba(10,26,47,.1)}
.svc-art{background:var(--sky-soft);border-radius:14px;margin-bottom:16px;overflow:hidden}
.svc-card h3{font-size:22px;margin:6px 0 8px}.svc-card ul{margin:12px 0 14px;padding-left:20px;color:var(--ink-2)}
.cards2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.card2{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;color:var(--ink);transition:.2s}
.card2:hover{transform:translateY(-3px);box-shadow:0 14px 40px rgba(10,26,47,.1)}
.c2-thumb{border-radius:12px;margin-bottom:14px;aspect-ratio:16/9;object-fit:cover}
.newsgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.ncard{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;color:var(--ink);transition:.2s}
.ncard:hover{transform:translateY(-3px);box-shadow:0 14px 40px rgba(10,26,47,.1)}
.ncard-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.ncard time{font-family:var(--disp);color:var(--mist);font-size:13px}
.ncard h3{font-size:19px;margin:0 0 8px}

/* accordion */
.acc{max-width:820px}
.acc-item{border:1px solid var(--line);border-radius:14px;margin-bottom:12px;background:#fff;overflow:hidden}
.acc-head{width:100%;text-align:left;font-family:var(--jp);font-weight:700;font-size:16px;padding:18px 22px;background:none;border:0;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:14px}
.acc-icon{color:var(--sky);font-size:20px;transition:.3s}
.acc-item.open .acc-icon{transform:rotate(45deg)}
.acc-body{max-height:0;overflow:hidden;transition:max-height .3s ease}
.acc-body p{margin:0;padding:0 22px 20px;color:var(--ink-2)}

/* forms */
.contact-wrap{display:grid;grid-template-columns:1.6fr 1fr;gap:30px;align-items:start}
.cform{display:flex;flex-direction:column;gap:14px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px}
.cform label{display:flex;flex-direction:column;gap:6px;font-weight:700;font-size:14px}
.f2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.cform input,.cform select,.cform textarea{padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;font:inherit}
.cform input:focus,.cform select:focus,.cform textarea:focus{outline:none;border-color:var(--sky)}
.req{color:var(--coral);font-size:11px;margin-left:6px}
.cform button{align-self:flex-start;margin-top:6px}
.cinfo{background:var(--sky-soft);border-radius:20px;padding:28px}
.cinfo h3{margin:0 0 10px}

/* prose */
.prose{max-width:760px}
.prose p{margin:0 0 18px}.prose h2{font-size:24px;margin:34px 0 14px;border-left:5px solid var(--sky);padding-left:14px}
.prose ul{padding-left:22px}
.prose .drop::first-letter{font-family:var(--disp);font-weight:700;font-size:56px;float:left;line-height:.8;padding:6px 12px 0 0;color:var(--sky)}
.pull{border:0;margin:26px 0;padding:20px 26px;background:var(--sky-soft);border-radius:14px;font-family:var(--jp);font-weight:700;font-size:20px;color:var(--ink)}
.info{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.info th,.info td{text-align:left;padding:15px 20px;border-bottom:1px solid var(--line);vertical-align:top}
.info th{width:150px;background:var(--sky-soft);font-family:var(--jp);font-weight:700}
.info tr:last-child th,.info tr:last-child td{border-bottom:0}
.map{height:300px;border-radius:18px;background:linear-gradient(135deg,#cfe0f5,#a9c8ef);position:relative;overflow:hidden}
.map::after{content:"青空ビル 4F";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:#fff;padding:8px 16px;border-radius:999px;font-weight:700;box-shadow:0 8px 20px rgba(0,0,0,.15)}

/* article */
.article{max-width:760px;margin:0 auto;padding-top:20px}
.art-head{padding:40px 0 24px;border-bottom:1px solid var(--line);margin-bottom:24px}
.art-head time{font-family:var(--disp);color:var(--mist);margin-left:12px}
.art-head h1{font-size:clamp(26px,4vw,40px);font-weight:900;margin:14px 0 0}
.meta{color:var(--mist)}

/* thanks */
.thanks{text-align:center;padding-top:60px}
.thanks-art{display:inline-block;padding:24px;background:var(--sky-soft);border-radius:50%;margin-bottom:20px}
.thanks h1{font-size:34px;font-weight:900}

/* footer */
.ft{background:var(--dark);color:#c6d3e6}
.ft-top{max-width:var(--wrap);margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;padding:60px 24px 30px}
.ft-brand{display:flex;gap:14px;align-items:flex-start}
.ft-brand b{font-family:var(--jp);font-weight:900;color:#fff;font-size:19px}
.ft-brand p{margin:4px 0 0;color:#9fb3cf}
.ft nav{display:flex;flex-direction:column;gap:9px}
.ft a{color:#c6d3e6;font-size:14px}.ft a:hover{color:#fff}
.ft-bar{max-width:var(--wrap);margin:0 auto;display:flex;justify-content:space-between;padding:20px 24px;border-top:1px solid #1c3050;font-size:12.5px;color:#7f96b6}
.mut{color:#8ba1c0;font-size:13px}

.totop{position:fixed;right:22px;bottom:22px;width:46px;height:46px;border-radius:50%;background:var(--ink);color:#fff;border:0;font-size:18px;cursor:pointer;opacity:0;pointer-events:none;transition:.3s;z-index:40;box-shadow:0 10px 24px rgba(10,26,47,.25)}
.totop.show{opacity:1;pointer-events:auto}

/* reveal */
[data-reveal]{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
[data-reveal].in{opacity:1;transform:none}

@media(max-width:900px){
  .nav{position:fixed;inset:64px 0 auto 0;flex-direction:column;background:#fff;border-bottom:1px solid var(--line);padding:16px;gap:4px;transform:translateY(-140%);transition:.35s;box-shadow:0 20px 40px rgba(10,26,47,.12)}
  .nav.open{transform:none}
  .nav a{flex-direction:row;justify-content:flex-start;gap:10px}.nav-jp{font-size:12px}
  .burger{display:flex}.hd-cta,.search{display:none}
  .lead-row,.split,.tab-panel,.contact-wrap,.stats,.svc-grid,.cards2,.newsgrid,.gallery,.team,.ft-top{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}.process{grid-template-columns:1fr 1fr}
  .hero{min-height:78vh}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto!important}
  [data-reveal]{opacity:1;transform:none;transition:none}
}