:root{--paper:#ffffff;--ink:#1d2b3f;--ai:#0b4ba3;--sky:#7fa8d8;--muted:#6b7885;--line:#e3e8ee;--wash:#f4f6f8}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic","Noto Sans JP",sans-serif;font-size:16.5px;line-height:2.05;letter-spacing:.02em}
img{max-width:100%}
a{color:inherit}
:focus-visible{outline:2px solid var(--ai);outline-offset:3px}
figure{margin:0}

/* header : overlay on hero, solid after scroll */
header{position:fixed;top:0;left:0;right:0;z-index:30;background:linear-gradient(180deg,rgba(15,25,36,.6),rgba(15,25,36,0));transition:background .3s,border-color .3s;border-bottom:1px solid transparent}
.hwrap{max-width:1320px;margin:0 auto;padding:18px clamp(20px,4vw,40px);display:flex;align-items:center;justify-content:space-between;gap:18px}
.logo{font-size:22px;font-weight:800;letter-spacing:.18em;color:#fff;text-decoration:none}
.logo small{display:block;font-size:9.5px;font-weight:600;letter-spacing:.13em;color:rgba(255,255,255,.82);margin-top:3px}
nav.gnav{display:flex;gap:clamp(12px,2.2vw,26px);flex-wrap:wrap}
nav.gnav a{font-size:12.5px;letter-spacing:.06em;color:rgba(255,255,255,.92);text-decoration:none}
nav.gnav a:hover{color:#fff;border-bottom:1px solid #fff}
header.solid{background:rgba(255,255,255,.97);border-bottom:1px solid var(--ink)}
header.solid .logo{color:var(--ink)}
header.solid .logo small{color:var(--muted)}
header.solid nav.gnav a{color:#333}
header.solid nav.gnav a:hover{color:var(--ai);border-bottom-color:var(--ai)}
@media(max-width:820px){nav.gnav{display:none}}

/* hero : photo */
.hero{position:relative;min-height:clamp(560px,86vh,860px);display:flex;align-items:flex-end;overflow:hidden;background:#22303f}
.hero .bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.62}
.hero .shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,28,40,.25) 0%,rgba(18,28,40,.05) 40%,rgba(18,28,40,.78) 100%)}
.hero .hin{position:relative;z-index:2;width:100%;max-width:1180px;margin:0 auto;padding:clamp(120px,16vw,200px) clamp(20px,4vw,40px) clamp(60px,8vw,90px);color:#fff}
.hero .eyebrow{color:#cfdff2;font-size:12px;font-weight:700;letter-spacing:.26em;margin:0 0 20px}
.hero h1{font-size:clamp(44px,7vw,84px);line-height:1.42;font-weight:800;letter-spacing:.05em;margin:0 0 26px;text-shadow:0 2px 24px rgba(10,20,30,.35)}
.hero .lead{font-size:clamp(15.5px,1.9vw,19px);line-height:2.1;color:#e8eef5;max-width:640px;margin:0}
.hero .cap{position:absolute;right:clamp(16px,3vw,36px);bottom:14px;z-index:2;font-size:10.5px;letter-spacing:.08em;color:rgba(255,255,255,.75)}

/* sections */
section{padding:clamp(76px,9.5vw,130px) clamp(20px,4vw,40px)}
.sin{max-width:1180px;margin:0 auto}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.24em;color:var(--ai);margin:0 0 22px}
section h2{font-size:clamp(28px,3.8vw,46px);line-height:1.6;font-weight:800;letter-spacing:.05em;margin:0 0 30px}
.copy{max-width:760px;color:#33404e;margin:0 0 16px}
.ghost-link{display:inline-block;margin-top:30px;font-size:13.5px;font-weight:700;letter-spacing:.1em;color:var(--ai);text-decoration:none;border-bottom:1px solid var(--ai);padding:5px 2px}
.ghost-link:hover{opacity:.65}

/* seclabel (from B) */
.seclabel{display:flex;justify-content:space-between;align-items:baseline;gap:16px;border-bottom:2px solid var(--ink);padding-bottom:12px;margin-bottom:36px;flex-wrap:wrap}
.seclabel b{font-size:clamp(26px,3.4vw,42px);letter-spacing:.04em;font-weight:800;line-height:1.5}
.seclabel span{font-size:11px;letter-spacing:.24em;color:var(--ai);font-weight:700}

/* approach : bar rows */
.views{margin:46px 0 26px}
.views div{display:flex;align-items:baseline;gap:clamp(14px,2.4vw,28px);padding:clamp(16px,2.2vw,26px) 0;border-top:1px solid var(--line)}
.views div:last-of-type{border-bottom:1px solid var(--line)}
.views .no{font-size:13px;font-weight:700;color:var(--ai);letter-spacing:.14em;flex:0 0 52px}
.views .w{font-size:clamp(30px,4.6vw,54px);font-weight:800;letter-spacing:.06em;line-height:1.4}
.after3{font-size:clamp(17px,2vw,21px);font-weight:700;max-width:820px}

/* results : dark */
.dark{background:var(--ink);color:#fff}
.dark .eyebrow{color:var(--sky)}
.dark .copy{color:#cdd8e2}
.dark h2{color:#fff}
.stats{display:flex;flex-wrap:wrap;gap:clamp(20px,3.4vw,50px);margin:44px 0 40px;border-top:1px solid rgba(255,255,255,.25);padding-top:30px}
.stats div{flex:1 1 200px}
.stats b{display:block;font-size:clamp(34px,4.6vw,56px);line-height:1.3;font-weight:800;color:#fff}
.stats b .b{color:var(--sky)}
.stats span{display:block;font-size:12.5px;color:#9fb0c0;margin-top:4px}
.graphbox{background:#fff;border-radius:6px;padding:clamp(14px,2vw,22px);margin:6px 0 10px}
.graphbox img{display:block;width:100%;height:auto}
.graphcap{font-size:12px;color:#9fb0c0;margin-bottom:26px}
.dlink{color:var(--sky);border-bottom-color:var(--sky)}

/* contract sheet (from B) */
.sheet{border-top:2px solid var(--ink);margin-bottom:8px}
.sheet div{display:grid;grid-template-columns:minmax(200px,1.1fr) 2fr;gap:16px;padding:14px 4px;border-bottom:1px solid var(--line);font-size:14.5px;align-items:baseline}
.sheet b{font-size:16px;letter-spacing:.03em}
.sheet span{color:#444}
@media(max-width:640px){.sheet div{grid-template-columns:1fr;gap:2px}}

/* works */
.worksrow{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin:40px 0 8px}
.worksrow img{width:100%;height:auto;display:block;border:1px solid var(--line);border-radius:4px}
.worksrow figcaption{font-size:11.5px;color:var(--muted);margin-top:7px;line-height:1.6}
@media(max-width:820px){.worksrow{grid-template-columns:repeat(2,1fr)}}

/* creative : 2col (from B) */
.creative-sec{background:var(--wash)}
.g2{display:grid;grid-template-columns:1fr 1.2fr;gap:clamp(26px,4vw,60px);align-items:start}
@media(max-width:820px){.g2{grid-template-columns:1fr}}

/* profile */
.pgrid{display:grid;grid-template-columns:330px 1fr;gap:clamp(28px,4.6vw,60px);align-items:start;margin-top:40px}
.pgrid img{width:100%;height:auto;border-radius:6px;display:block}
.pgrid .name{font-size:clamp(25px,3vw,35px);font-weight:800;letter-spacing:.1em;margin:0 0 4px}
.pgrid .role{font-size:13px;color:var(--muted);letter-spacing:.06em;margin:0 0 20px}
.pnums{display:flex;flex-wrap:wrap;gap:12px 38px;margin-top:26px;border-top:1px solid var(--line);padding-top:20px}
.pnums div b{font-size:clamp(25px,3vw,33px);font-weight:800}
.pnums div b .b{color:var(--ai)}
.pnums div span{display:block;font-size:11.5px;color:var(--muted)}
@media(max-width:820px){.pgrid{grid-template-columns:1fr}.pgrid img{max-width:320px}}

/* contact */
.contact-sec .inner{max-width:860px}
.btn{display:inline-block;margin-top:34px;padding:17px 44px;border:1px solid #fff;border-radius:2px;font-size:14px;font-weight:700;letter-spacing:.12em;color:#fff;text-decoration:none}
.btn.off{opacity:.6;cursor:default}
.connect-note{margin-top:16px;font-size:12.5px;color:#9fb0c0}

footer{background:#141f2c;color:#8fa0b0;padding:42px clamp(20px,4vw,40px);text-align:center}
footer .flogo{font-size:19px;font-weight:800;letter-spacing:.2em;color:#fff}
footer small{display:block;font-size:10.5px;letter-spacing:.14em;margin-top:12px}