*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#d9d6cf;color:#20272a;font-size:17px;line-height:1.8;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit}img{display:block;max-width:100%}:root{--charcoal:#22282c;--charcoal2:#2b3237;--panel:#333b41;--panel2:#3a4349;--warm:#d9d6cf;--warm2:#cecac1;--warm3:#e4e1da;--yellow:#f6c928;--yellow-soft:#ffe16b;--amber:#ff9f1c;--ink:#20272a;--text:#f7f7f3;--muted:#c7ced0;--muted-dark:#677176;--line-dark:rgba(255,255,255,.12);--line-light:#bdb8ae;--max:1180px}.site-header{position:sticky;top:0;z-index:100;height:74px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 max(5vw,calc((100vw - var(--max))/2));background:rgba(34,40,44,.97);backdrop-filter:blur(14px);border-bottom:1px solid 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span{font-size:.74rem;font-weight:850;letter-spacing:.14em;color:var(--yellow)}.service-grid h3{margin:30px 0 10px;font-size:1.19rem;font-weight:750}.service-grid p{margin:0;font-size:1rem;line-height:1.85;color:#d0d5d6}.cabinet-photo{margin:0;min-height:100%;overflow:hidden;background:#252b2f;position:relative}.cabinet-photo:after{content:"";position:absolute;inset:0;border:1px solid rgba(246,201,40,.18)}.cabinet-photo img{width:100%;height:100%;object-fit:cover;filter:saturate(.76) contrast(1.04) brightness(.96)}.other-support{margin-top:16px;padding:21px 24px;border-left:4px solid var(--yellow);background:#30373c}.other-support strong{font-size:.72rem;letter-spacing:.17em;color:var(--yellow)}.other-support p{margin:7px 0 0;font-size:1rem;line-height:1.8;color:#d1d5d6}#strengths{background:var(--warm2);color:var(--ink)}#strengths .section-kicker{color:#8e6500}#strengths>h2{color:var(--ink)}#strengths:after{content:"";position:absolute;right:-80px;top:34px;width:320px;height:110px;border-top:1px solid rgba(246,201,40,.34);border-bottom:1px solid rgba(255,159,28,.18);transform:skewX(-34deg)}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:38px}.feature-grid article{position:relative;padding:29px 27px 31px;background:#3a4247;border:1px solid rgba(0,0,0,.08);min-height:225px;overflow:hidden;color:#fff}.feature-grid article:after{content:"";position:absolute;right:-22px;top:-18px;width:72px;height:72px;background:linear-gradient(135deg,rgba(246,201,40,.28),rgba(255,159,28,.04));transform:rotate(45deg)}.feature-grid strong,.work-list b{font-size:.72rem;font-weight:850;letter-spacing:.15em;color:#b77900}.feature-grid h3{margin:20px 0 9px;font-size:1.19rem;color:#fff}.feature-grid 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p{max-width:700px;margin-top:14px;font-size:1.06rem;color:#3f474a}.mail-link{display:inline-flex;margin-top:24px;font-size:clamp(1.35rem,2.2vw,2rem);font-weight:850;border-bottom:2px solid #16191b;padding-bottom:3px}.footer{display:flex;justify-content:space-between;align-items:center;padding:20px max(6vw,calc((100vw - var(--max))/2));background:#202529;color:#fff;border-top:1px solid rgba(246,201,40,.16)}.footer img{width:100px;height:42px;object-fit:contain;background:transparent;padding:0;filter:brightness(0) invert(1)}.footer p{font-size:.78rem;opacity:.66}@media(max-width:920px){body{font-size:16px}.site-header{height:66px;grid-template-columns:1fr auto;padding:0 5vw}.nav{display:none}.brand-copy{display:none}.brand-logo{width:96px;height:40px}.hero{height:auto;min-height:600px;padding:84px 6vw 66px;align-items:flex-end}.hero:after{right:-16px;width:90px;opacity:.12}.hero-content{width:min(100%,650px);padding-left:18px}.hero 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/* Dark-base brand refinement: only header and footer use the electric yellow/orange field. */
body{background:#0d0f10;color:#f5f5f0}.site-header{background:linear-gradient(105deg,#f6c928 0%,#ffd84e 68%,#ff9f1c 100%);color:#171b1e;border-bottom:1px solid rgba(0,0,0,.18)}.brand-logo{filter:brightness(0)}.brand-copy{color:#2f2b20}.nav a{color:#202326}.nav a:after{background:#171b1e}.nav a:hover{color:#000}.lang-toggle{border-color:rgba(0,0,0,.28);background:rgba(0,0,0,.08);color:#171b1e}.lang-toggle:hover{border-color:#171b1e;color:#000;background:rgba(255,255,255,.18)}.intro{background:#171b1f;color:#fff;border-top:1px solid rgba(246,201,40,.08);border-bottom:1px solid rgba(246,201,40,.08)}.intro .section-kicker{color:var(--yellow-soft)}.intro .split h2{color:#fff}.intro .split p{color:#b7c0c3}.intro:after{border-color:rgba(246,201,40,.15)}.dark{background:#0f1214;color:#fff}.dark .section-kicker{color:var(--yellow-soft)}#strengths{background:#181d21;color:#fff;border-top:1px solid rgba(255,255,255,.04);border-bottom:1px solid rgba(255,255,255,.05)}#strengths .section-kicker{color:var(--yellow-soft)}#strengths>h2{color:#fff}.feature-grid strong{color:var(--yellow)}.works{background:#14181b;color:#fff}.works .section-kicker{color:var(--yellow-soft)}.works>p:nth-of-type(2){color:#b7c0c3}.work-list{border-top-color:rgba(255,255,255,.11)}.work-list article{border-bottom-color:rgba(255,255,255,.11)}.work-list article>span,.work-list b{color:var(--yellow)}.work-list h3{color:#fff}.company{background:#0f1214;color:#fff}.contact{background:#171b1f;color:#fff;border-top:1px solid rgba(246,201,40,.1)}.contact:after{background:linear-gradient(180deg,var(--yellow),var(--amber));opacity:.13}.contact .section-kicker{color:var(--yellow-soft)}.contact h2{color:#fff}.contact p{color:#c6cdcf}.mail-link{color:var(--yellow);border-bottom-color:var(--yellow)}.footer{background:linear-gradient(105deg,#f6c928 0%,#ffd84e 68%,#ff9f1c 100%);color:#171b1e;border-top:1px solid rgba(0,0,0,.2)}.footer img{filter:brightness(0)}.footer p{opacity:.72}

/* Unified electric divider across every content section. */
.section::before,.contact::before{content:"";position:absolute;left:0;top:0;width:100%;height:4px;background:linear-gradient(90deg,var(--yellow) 0%,var(--amber) 18%,rgba(255,159,28,.22) 62%,transparent 100%);z-index:3;pointer-events:none}

/* About section: headline first, supporting copy directly underneath. */
.intro .split{grid-template-columns:1fr;gap:14px;max-width:940px}.intro .split p{max-width:900px;margin-top:0}

/* Engineering support: headline first, supporting copy directly underneath. */
#services .section-heading{grid-template-columns:1fr;gap:14px;max-width:940px}#services .section-heading p{max-width:900px;margin-top:0}