:root{
  --ink:#161616;
  --text:#424242;
  --muted:#6d6d6d;
  --line:#dddddd;
  --surface:#f9f9f9;
  --panel:#f5f2f2;
  --dark:#06131f;
  --blue:#0d3b66;
  --cyan:#00a6c7;
  --max:1180px;
  --header-h:78px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--header-h)}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;color:var(--ink);background:var(--surface);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}button,input{font:inherit}.container{width:min(calc(100% - 48px),var(--max));margin-inline:auto}.narrow{max-width:920px}.section-pad{padding:88px 0}.centered{text-align:center}.pc-only{display:block}
.eyebrow{margin:0 0 8px;font-size:11px;letter-spacing:.18em;font-weight:800}.section-head h2{margin:0;font-size:36px;line-height:1.25}.section-head>p:last-child{margin:10px 0 0;color:var(--muted);font-size:14px}

/* HEADER */
.hero-header{height:var(--header-h);position:fixed;top:0;left:0;right:0;z-index:60;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(24px,5vw,76px);background:#f9f9f9;color:#424242;border-bottom:1px solid rgba(0,0,0,.04);transition:background .25s ease,color .25s ease}
.hero-header.menu-open{background:rgba(3,12,20,.97);color:#fff}.hero-header.menu-open .hero-brand-logo{filter:brightness(0) invert(1)}
.hero-brand{display:flex;align-items:center}.hero-brand-logo{display:block;width:170px;height:auto}.desktop-nav{display:flex;gap:28px;align-items:center;font-size:11px;letter-spacing:.04em}.desktop-nav a{position:relative;padding:30px 0}.desktop-nav a::after{content:"";position:absolute;left:0;right:100%;bottom:22px;height:1px;background:currentColor;transition:right .2s ease}.desktop-nav a:hover::after{right:0}
.menu-toggle{display:none;width:42px;height:42px;border:0;padding:0;background:transparent;position:relative;z-index:61}.menu-toggle span{position:absolute;left:8px;width:26px;height:1px;background:#424242;transition:.3s ease}.menu-toggle span:first-child{top:16px}.menu-toggle span:last-child{top:25px}.menu-toggle.is-open span{background:#fff;height:2px;width:28px;left:7px}.menu-toggle.is-open span:first-child{top:21px;transform:rotate(45deg)}.menu-toggle.is-open span:last-child{top:21px;transform:rotate(-45deg)}
.mobile-menu{display:none}

/* HERO */
.hero{position:relative;margin-top:var(--header-h);min-height:min(690px,calc(100svh - var(--header-h)));overflow:hidden;isolation:isolate;color:#f6fbff;background:radial-gradient(circle at 72% 44%,rgba(0,117,255,.15),transparent 38%),linear-gradient(120deg,#06131f 0%,#061521 42%,#04101b 100%)}
#network-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0}.hero-vignette{position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(1,7,13,.16),rgba(1,7,13,.02) 48%,rgba(1,7,13,.14)),linear-gradient(180deg,rgba(1,7,13,.18),rgba(1,7,13,.02) 45%,rgba(1,7,13,.24))}.hero-grain{position:absolute;inset:0;z-index:2;opacity:.07;pointer-events:none;background-image:radial-gradient(rgba(255,255,255,.6) .5px,transparent .5px);background-size:4px 4px}.hero-copy{position:absolute;z-index:3;left:50%;top:49%;transform:translate(-50%,-50%);width:min(90%,900px);text-align:center}.hero-eyebrow{margin:0 0 18px;font-size:9px;letter-spacing:.32em;color:rgba(255,255,255,.74)}.hero-copy h1{margin:0;font-weight:300;font-size:clamp(50px,6.3vw,88px);line-height:1;letter-spacing:.18em}.hero-lead{margin:30px 0 0;font-size:clamp(16px,1.6vw,22px);letter-spacing:.13em}.copy-rule{width:52px;height:1px;background:rgba(255,255,255,.65);margin:28px auto 22px}.hero-subcopy{margin:0;font-size:9px;line-height:1.9;letter-spacing:.35em;color:rgba(255,255,255,.72)}.scroll-indicator{position:absolute;z-index:4;left:50%;bottom:26px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:12px;font-size:9px;letter-spacing:.28em}.scroll-indicator i{display:block;width:1px;height:52px;background:linear-gradient(#fff,transparent)}.status{position:absolute;right:28px;bottom:24px;z-index:4;display:flex;align-items:center;gap:8px;font-size:9px;letter-spacing:.15em;color:rgba(255,255,255,.6)}.status-dot{width:6px;height:6px;border-radius:50%;background:#63d9ff;box-shadow:0 0 12px #63d9ff}

/* PHILOSOPHY */
.philosophy{position:relative;overflow:hidden;background:#eaf2f6;border-bottom:1px solid #dde6eb}.philosophy-visual{position:absolute;inset:0;background:linear-gradient(180deg,rgba(245,248,250,.44) 0%,rgba(245,248,250,.28) 18%,rgba(245,248,250,.20) 38%,rgba(245,248,250,.22) 100%),radial-gradient(circle at 50% 36%,rgba(249,249,249,.82) 0%,rgba(249,249,249,.55) 26%,rgba(249,249,249,.20) 52%,rgba(249,249,249,0) 74%),url('../images/top/philosophy-underwater.webp') center 58%/cover no-repeat}.philosophy-visual::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,52,78,.06),rgba(8,52,78,0) 20%,rgba(255,255,255,0) 80%,rgba(255,255,255,.12));mix-blend-mode:screen}.philosophy-visual::after{content:"";position:absolute;left:0;right:0;bottom:0;height:42%;background:linear-gradient(180deg,rgba(255,255,255,0),rgba(249,249,249,.28) 38%,rgba(249,249,249,.48) 100%)}.philosophy-inner{position:relative;z-index:1;padding:70px 0 76px;text-align:center}.philosophy-inner h2{margin:2px 0 20px;font-size:clamp(30px,4vw,52px);letter-spacing:.08em;color:#10263a;text-shadow:0 1px 0 rgba(255,255,255,.32)}.philosophy-inner>p:last-child{max-width:780px;margin:0 auto;font-size:14px;color:#203445;line-height:2;text-shadow:0 1px 0 rgba(255,255,255,.22)}

/* APPROACH */
.approach-section{background:#fff;border-bottom:1px solid var(--line)}.approach-grid{display:grid;grid-template-columns:repeat(4,1fr)}.approach-card{min-height:260px;padding:40px 28px 34px;text-align:center;border-right:1px solid #e7e7e7;display:flex;flex-direction:column;align-items:center;justify-content:center}.approach-card:first-child{border-left:1px solid #e7e7e7}.approach-icon{font-size:30px;line-height:1;margin-bottom:18px}.approach-card h3{margin:0;font-size:15px;letter-spacing:.06em}.approach-title{margin:6px 0 14px;font-size:12px;font-weight:700}.approach-detail{margin:0;font-size:12px;color:#666;line-height:1.7}

/* BUSINESS */
.business{position:relative;isolation:isolate;overflow:hidden;background:#000;color:#fff}.business-content{position:relative;z-index:2}.business-network-wash{position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(180deg,rgba(0,0,0,.16),rgba(0,0,0,.06) 42%,rgba(0,0,0,.28)),radial-gradient(circle at 68% 18%,rgba(0,117,255,.08),rgba(0,0,0,0) 68%)}#business-network-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}.section-head--inverse,.section-head--inverse>p:last-child{color:#fff}.section-head--inverse>p:last-child{opacity:.82}.business-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:42px}.business-tile{position:relative;aspect-ratio:16/10;overflow:hidden;background:#06131f;border:1px solid rgba(255,255,255,.12)}.business-tile img{width:100%;height:100%;display:block;object-fit:cover;transition:transform .45s ease}.business-tile-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.05) 35%,rgba(0,0,0,.78) 100%)}.business-tile-copy{position:absolute;left:20px;right:20px;bottom:16px;display:flex;flex-direction:column;gap:1px}.business-tile-copy strong{font-size:19px;letter-spacing:.04em}.business-tile-copy small{font-size:10px;opacity:.82}.business-tile:hover img{transform:scale(1.035)}

/* FEATURED WORKS */
.featured{background:#f9f9f9}.works-strip{display:flex;gap:22px;margin-top:40px;overflow-x:auto;padding:0 0 14px;scroll-snap-type:x proximity;scrollbar-width:thin}.work-card{flex:0 0 min(31.8%,360px);scroll-snap-align:start}.work-media{width:100%;aspect-ratio:16/9;overflow:hidden;background:#111;border:1px solid #e2e2e2}.work-media img{width:100%;height:100%;display:block;object-fit:cover}.work-media--archive{display:flex;align-items:center;justify-content:center;background:#1b1b1b}.work-media--archive img{width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain}.work-card h3{margin:11px 0 0;font-size:14px}.work-card p{margin:2px 0 0;font-size:11px;color:#777}.works-action{text-align:center;margin-top:30px}

/* COMPANY */
.company-network{position:relative;isolation:isolate;overflow:hidden;background:#000;color:#fff}.company-network-wash{position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(180deg,rgba(0,0,0,.08),rgba(0,0,0,.16)),radial-gradient(circle at 68% 18%,rgba(0,117,255,.08),rgba(0,0,0,0) 68%)}#company-network-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}.company-visual{position:relative;z-index:2;min-height:520px;overflow:hidden}.company-visual>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center}.company-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(2,17,31,.88) 0%,rgba(2,17,31,.60) 40%,rgba(2,17,31,.08) 74%,rgba(2,17,31,.04) 100%)}.company-copy{position:relative;z-index:2;padding-top:100px;padding-bottom:90px}.company-copy h2{margin:5px 0 18px;font-size:clamp(38px,5vw,66px);font-weight:300;line-height:1.08;letter-spacing:.04em}.company-copy>p:not(.eyebrow){margin:0 0 30px;font-size:14px}.btn-outline-light{border-color:rgba(255,255,255,.75);color:#fff;background:transparent}

/* CONTACT */
.contact{background:#f9f9f9}.contact-box{margin-top:34px;border:1px solid #ddd;background:#f5f2f2;padding:28px}.contact-box fieldset{border:0;padding:0;margin:0 0 22px;display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.contact-box legend{grid-column:1/-1;margin-bottom:14px;font-weight:700}.contact-box label{background:#fff;border:1px solid #ddd;padding:14px 16px;display:flex;align-items:center;gap:8px;cursor:pointer}.contact-box input{accent-color:#222}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;justify-content:space-between;gap:24px;padding:14px 20px;border:1px solid #222;min-width:170px;font-weight:700;font-size:12px;letter-spacing:.04em;transition:.2s}.btn:hover{transform:translateY(-2px)}.btn-dark{background:#222;color:#fff}.btn-full{width:100%}

/* FOOTER */
.site-footer.footer-network{position:relative;isolation:isolate;overflow:hidden;background:#000;border-top:1px solid rgba(255,255,255,.14);color:#fff;padding:48px 0 20px}#footer-network-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}.footer-network-wash{position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(180deg,rgba(0,0,0,.08),rgba(0,0,0,.22)),radial-gradient(circle at 72% 20%,rgba(0,117,255,.08),rgba(0,0,0,0) 68%)}.footer-grid,.copyright{position:relative;z-index:2}.footer-grid{display:grid;grid-template-columns:1fr 2fr 1fr;gap:30px;align-items:start}.footer-brand-logo{display:block;width:190px;height:auto}.footer-brand p,.footer-info p{margin:8px 0;color:#fff;font-size:11px}.footer-grid nav{display:flex;flex-wrap:wrap;gap:10px 18px;justify-content:center;font-size:10px}.footer-info{text-align:right}.footer-info a{color:inherit;text-decoration:none}.copyright{border-top:1px solid rgba(255,255,255,.22);margin-top:28px;padding-top:16px;font-size:9px;color:#fff}

@media(max-width:900px){
  :root{--header-h:74px}.container{width:min(calc(100% - 32px),var(--max))}.section-pad{padding:64px 0}.desktop-nav{display:none}.menu-toggle{display:block}.mobile-menu{display:grid;position:fixed;inset:0;place-items:center;background:rgba(3,12,20,.97);backdrop-filter:blur(12px);z-index:50;opacity:0;pointer-events:none;transition:opacity .3s ease;color:#fff}.mobile-menu.is-open{opacity:1;pointer-events:auto}.mobile-menu nav{display:grid;gap:25px;text-align:center}.mobile-menu a{font-size:18px;font-weight:300;letter-spacing:.18em}
  .hero{min-height:calc(100svh - var(--header-h))}.status{display:none}.philosophy-inner{padding:58px 0 62px}.approach-grid{grid-template-columns:1fr 1fr}.approach-card:nth-child(2){border-right:0}.approach-card:nth-child(3){border-left:1px solid #e7e7e7}.business-grid{grid-template-columns:1fr}.business-tile{aspect-ratio:16/8.8}.work-card{flex-basis:46%}.company-visual{min-height:470px}.footer-grid{grid-template-columns:1fr}.footer-grid nav{justify-content:flex-start}.footer-info{text-align:left}
}

@media(max-width:600px){
  .pc-only{display:none}.hero-header{padding-inline:20px}.hero-brand-logo{width:154px}.hero-copy{top:43%;width:calc(100% - 36px)}.hero-eyebrow{display:none}.hero-copy h1{font-size:clamp(40px,13vw,58px);max-width:310px;margin-inline:auto;line-height:1.06;letter-spacing:.14em}.hero-lead{margin-top:26px;font-size:14px}.hero-subcopy{font-size:8px}.scroll-indicator{bottom:18px}.philosophy-inner{padding:48px 0 52px}.philosophy-inner h2{font-size:30px}.philosophy-inner>p:last-child{text-align:left;font-size:13px;line-height:1.9}.philosophy-visual{background:linear-gradient(180deg,rgba(245,248,250,.36) 0%,rgba(245,248,250,.20) 20%,rgba(245,248,250,.14) 40%,rgba(245,248,250,.22) 100%),radial-gradient(circle at 50% 32%,rgba(249,249,249,.86) 0%,rgba(249,249,249,.60) 26%,rgba(249,249,249,.22) 54%,rgba(249,249,249,0) 76%),url('../images/top/philosophy-underwater.webp') center 62%/cover no-repeat}.approach-grid{grid-template-columns:1fr}.approach-card,.approach-card:first-child,.approach-card:nth-child(3){min-height:0;border-left:0;border-right:0;border-bottom:1px solid #e7e7e7;padding:18px 18px;display:grid;grid-template-columns:44px 1fr;column-gap:12px;text-align:left;align-items:center}.approach-icon{margin:0;font-size:24px;grid-row:1}.approach-card>div{grid-column:2;grid-row:1}.approach-card h3{font-size:12px}.approach-title{margin:2px 0 0;font-size:10px}.approach-detail{display:none}.section-head h2{font-size:28px}.business-grid{gap:10px;margin-top:28px}.business-tile{aspect-ratio:16/8}.business-tile-copy strong{font-size:17px}.works-strip{display:grid;grid-template-columns:1fr;overflow:visible;gap:20px}.work-card{width:100%}.work-card:nth-child(n+4){display:none}.works-action{margin-top:24px}.company-visual{min-height:430px}.company-visual>img{object-position:58% center}.company-overlay{background:linear-gradient(90deg,rgba(2,17,31,.90),rgba(2,17,31,.58) 64%,rgba(2,17,31,.12))}.company-copy{padding-top:74px;padding-bottom:70px}.company-copy h2{font-size:37px}.contact-box{padding:16px}.contact-box fieldset{grid-template-columns:1fr;gap:8px}.footer-brand-logo{width:178px}.footer-grid nav{font-size:9px}
}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.scroll-indicator i,.status-dot{animation:none}}