:root{--navy:#061a33;--navy2:#0b294c;--gold:#c9a34a;--paper:#fff;--ink:#172234;--line:rgba(255,255,255,.16)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Noto Sans JP","Yu Gothic",sans-serif;color:var(--ink);background:var(--paper);line-height:1.75}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}
.header{position:sticky;top:0;z-index:50;background:rgba(6,26,51,.98);color:#fff;border-bottom:1px solid rgba(255,255,255,.12)}
.nav{max-width:1180px;margin:auto;min-height:78px;padding:10px 24px;display:flex;align-items:center;justify-content:space-between}.logo{width:180px;height:58px;object-fit:contain;object-position:left center}.navlinks{display:flex;gap:26px;align-items:center;font-size:14px}.navlinks a{padding:18px 0}.navlinks a:hover{color:#e1bf70}.menu{display:none;border:1px solid rgba(255,255,255,.45);background:transparent;color:#fff;font-size:26px;border-radius:7px;padding:2px 10px}
.hero{min-height:650px;background:linear-gradient(90deg,rgba(4,20,39,.88),rgba(4,20,39,.58) 48%,rgba(4,20,39,.12)),url("assets/hero_buildings.jpg") center/cover;display:flex;align-items:center;color:#fff}.hero-inner{max-width:1180px;width:100%;margin:auto;padding:90px 24px}.kicker{letter-spacing:.2em;font-size:14px;color:#fff}.hero h1{font-family:Georgia,"Times New Roman","Noto Serif JP",serif;font-weight:500;font-size:clamp(36px,5vw,62px);line-height:1.28;letter-spacing:.05em;margin:18px 0}.goldline{width:52px;height:2px;background:var(--gold);margin:24px 0}.hero p{font-size:18px;max-width:560px}.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--navy);color:#fff;padding:14px 22px;margin-top:18px;border:0;cursor:pointer}.btn.gold{background:var(--gold)}
.services{display:grid;grid-template-columns:repeat(5,1fr);background:#091e36;color:#fff}.service{min-height:190px;padding:34px 20px;border-right:1px solid rgba(255,255,255,.16);display:flex;flex-direction:column;justify-content:center;text-align:center}.service:last-child{border-right:0}.service .icon{font-size:30px;color:#d5b35f;margin-bottom:7px}.service h3{color:#fff;font-size:18px;margin:0}.service span{font-size:10px;letter-spacing:.15em;color:#d5b35f;margin-top:3px}
.section{max-width:1180px;margin:auto;padding:78px 24px}.section h2{font-size:34px;margin:0;color:var(--navy)}.en{display:block;font-size:11px;letter-spacing:.2em;color:#8c6d2d;margin-top:2px}.greeting{display:block}.greeting p{margin:0 0 15px}.name{margin-top:22px;font-weight:700;color:var(--navy);font-size:18px}
.works{background:#071d38;color:#fff;max-width:none;padding:78px 24px}.works-inner{max-width:1180px;margin:auto}.works h2{color:#fff}.works-sub{color:rgba(255,255,255,.8);margin:8px 0 32px}.work-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.work-card{background:#fff;color:var(--navy);overflow:hidden}.work-card h3{margin:0;padding:14px 16px;font-size:16px}.pair{display:grid;grid-template-columns:1fr 1fr}.pair img{width:100%;height:auto;aspect-ratio:4/3;object-fit:contain;display:block}.label{font-size:10px;text-align:center;padding:3px 0;color:#fff;background:#555}.label.after{background:var(--navy)}
.company{background:#071d38;color:#fff;padding:72px 24px}.company-inner{max-width:1180px;margin:auto}.company h2{color:#fff}.company table{width:100%;border-collapse:collapse;font-size:14px}.company td{border-bottom:1px solid var(--line);padding:11px 8px;vertical-align:top}.company td:nth-child(odd){width:14%;color:#d6b66d}.company td:nth-child(even){width:36%}
.contact{background:#061a33;color:#fff;padding:72px 24px}.contact-inner{max-width:1180px;margin:auto}.contact h2{color:#fff}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:28px}.contact-card{border:1px solid rgba(255,255,255,.25);padding:38px 42px}.contact-card h3{color:#d6b66d;margin:0 0 18px;font-size:18px}.phone-number{font-size:34px;font-weight:700;letter-spacing:.02em}.hours{margin-top:12px}.email-note{font-size:18px;margin:18px 0}.contact-card .btn{width:100%;margin-top:18px}
.footer{background:#04172d;color:#fff;padding:30px 24px;text-align:center;font-size:12px}.footer img{width:180px;margin:0 auto 15px}.footer nav{display:flex;justify-content:center;gap:20px;flex-wrap:wrap;margin-bottom:12px}
@media(max-width:900px){.nav{min-height:68px;padding:8px 16px}.logo{width:165px;height:50px}.navlinks{display:none;position:absolute;left:0;right:0;top:68px;background:var(--navy);flex-direction:column;gap:0;padding:8px 18px}.navlinks.open{display:flex}.navlinks a{padding:13px 5px;width:100%;border-bottom:1px solid rgba(255,255,255,.1)}.menu{display:block}.hero{min-height:640px;background-position:center}.hero-inner{padding:75px 20px}.hero h1{font-size:32px}.hero p{font-size:16px}.services{grid-template-columns:1fr 1fr}.service{min-height:160px}.greeting{display:block}.work-grid{grid-template-columns:1fr 1fr}.pair img{height:auto}.company table{font-size:13px}.company td:nth-child(odd){width:22%}.company td:nth-child(even){width:28%}.contact-grid{grid-template-columns:1fr}.contact-card{padding:30px 24px}}
@media(max-width:520px){.hero{min-height:620px}.hero-inner{padding:65px 20px}.hero h1{font-size:32px}.services{grid-template-columns:1fr 1fr}.service{min-height:145px;padding:22px 10px}.service .icon{font-size:25px}.service h3{font-size:15px}.service span{font-size:8px}.section{padding:58px 20px}.section h2{font-size:29px}.work-grid{grid-template-columns:1fr}.pair img{height:auto}.company{padding:58px 20px}.company table{display:block}.company tbody,.company tr{display:block}.company tr{display:grid;grid-template-columns:28% 72%}.company td{width:auto!important;padding:9px 5px;border-bottom:1px solid var(--line)}.company td:nth-child(3){display:none}.company td:nth-child(4){display:none}.contact{padding:58px 20px}.contact-card{padding:28px 20px}.phone-number{font-size:30px}.footer nav{gap:12px;font-size:11px}}


.image-link{display:block;cursor:zoom-in}.image-link:focus-visible,.certificate-link:focus-visible{outline:3px solid #e1bf70;outline-offset:3px}.certificate-link{text-decoration:underline;text-underline-offset:4px;color:#e1bf70}.access{background:#071d38;color:white;padding:40px 24px}.access iframe{width:100%;height:380px;border:0;border-radius:4px}#image-viewer{border:0;border-radius:8px;background:#061a33;color:white;padding:60px 16px 16px;max-width:96vw;max-height:94dvh}#image-viewer::backdrop{background:rgba(0,0,0,.85)}#image-viewer img{max-width:85vw;max-height:72dvh;object-fit:contain;margin:auto}.viewer-close{position:absolute;right:12px;top:10px;padding:10px 16px;border:1px solid white;border-radius:4px;background:#061a33;color:white;cursor:pointer;font:inherit}.viewer-caption{text-align:center;margin:12px 0 0}body.viewer-open{overflow:hidden}@media(max-width:520px){.company td:nth-child(3),.company td:nth-child(4){display:block}.access{padding:32px 20px}.access iframe{height:320px}}

/* FV: high-resolution architectural visual, independent mobile composition */
.hero{position:relative;isolation:isolate;min-height:640px;background:#071d38;overflow:hidden}.hero-visual{position:absolute;inset:0;z-index:-2}.hero-visual img{width:100%;height:100%;object-fit:cover;object-position:62% center}.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,#071d38 0%,rgba(7,29,56,.97) 23%,rgba(7,29,56,.8) 40%,rgba(7,29,56,.16) 70%,rgba(7,29,56,0) 100%)}.hero-inner{padding:100px 32px}.hero h1{font-size:clamp(34px,4.3vw,60px);line-height:1.5;letter-spacing:.06em;margin:0 0 28px}.hero p{font-size:17px;line-height:2.1;margin:0;color:#e7edf4}.hero-image-note{position:absolute;right:18px;bottom:12px;font-size:10px;letter-spacing:.08em;color:white;text-shadow:0 1px 4px #000;background:#071d3866;padding:2px 8px}
@media(max-width:700px){.hero{display:flex;flex-direction:column;min-height:0;align-items:stretch}.hero-visual{position:relative;inset:auto;order:2;height:280px;z-index:auto}.hero-visual img{object-position:center 54%}.hero::after{display:none}.hero-inner{order:1;padding:42px 24px 36px}.hero h1{font-size:clamp(28px,6.9vw,42px);line-height:1.55;letter-spacing:.035em;margin:0 0 20px}.hero p{font-size:14px;line-height:2}.hero-visual::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,29,56,.15),transparent 25%);pointer-events:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Reference service layout: two, two, three */
.preview-bar{background:#f1eadb;color:#10233b;padding:8px 12px;text-align:center;font-size:12px;display:flex;gap:16px;justify-content:center;flex-wrap:wrap}.preview-bar a{text-decoration:underline}.services-redesign{display:block;background:radial-gradient(ellipse at top,#142940,#0b1c32 70%);padding:46px 20px 24px}.services-inner{max-width:1040px;margin:auto}.services-redesign h2{text-align:center;font-family:"Yu Mincho",serif;font-size:36px;line-height:1.4;margin:0 0 30px}.services-redesign h2 span{display:flex;align-items:center;justify-content:center;gap:24px;font:13px/2 sans-serif;letter-spacing:.4em;color:#cfb365;margin-top:8px}.services-redesign h2 span:before,.services-redesign h2 span:after{content:"";width:62px;height:1px;background:#bda764}.service-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr))}.services-redesign .service{grid-column:span 3;border:0;border-bottom:1px solid #ffffff30;border-right:1px solid #ffffff30;padding:24px 8px 16px;min-height:200px;gap:10px}.services-redesign .service:nth-child(2),.services-redesign .service:nth-child(4),.services-redesign .service:nth-child(7){border-right:0}.services-redesign .service:nth-child(n+5){grid-column:span 2;border-bottom:0}.services-redesign svg{width:52px;height:52px;color:#ccb168;margin:0 auto 8px}.services-redesign .service h3{font-size:24px;line-height:1.4;white-space:nowrap}.services-redesign .service span{font-size:12px;letter-spacing:.16em;margin:0;color:#d6bd78}.service-arrow{font:26px/1 serif;color:white;font-weight:400}.service:hover{background:#ffffff08}.service-other{border:1px solid #c5aa67;display:flex;align-items:center;gap:20px;padding:18px 20px;margin:0 4px;color:white}.service-other svg{width:42px;height:42px;flex-shrink:0;margin:0}.service-other span{font-size:14px;line-height:1.8}.service-other b{margin-left:auto;font-size:24px;font-weight:400}#works [id]{scroll-margin-top:100px}.service:focus-visible,.service-other:focus-visible{outline:2px solid #e1bf70;outline-offset:-4px}
.original-variant .hero{display:flex;flex-direction:row;min-height:650px}.original-variant .hero-visual{position:absolute;inset:0;z-index:-2;height:auto}.original-variant .hero-visual img{object-fit:cover;object-position:center 48%}.original-variant .hero::after{display:block;background:linear-gradient(90deg,rgba(4,20,39,.86),rgba(4,20,39,.58) 48%,rgba(4,20,39,.14))}.original-variant .hero-inner{padding:90px 24px}.original-variant .hero-visual::before{display:none}
@media(max-width:700px){.services-redesign{padding:32px 10px 14px}.services-redesign h2{font-size:27px;margin-bottom:20px}.services-redesign h2 span{font-size:10px;gap:20px}.services-redesign h2 span:before,.services-redesign h2 span:after{width:40px}.services-redesign .service{min-height:166px;padding:15px 4px 12px;gap:8px}.services-redesign svg{width:43px;height:43px;margin-bottom:5px}.services-redesign .service h3{font-size:clamp(15px,3.8vw,22px)}.services-redesign .service span{font-size:clamp(8px,2.25vw,12px);letter-spacing:.12em}.services-redesign .service:nth-child(n+5) h3{font-size:clamp(15px,4vw,22px)}.service-other{gap:12px;padding:12px 10px}.service-other span{font-size:11px}.service-other svg{width:32px;height:32px}.original-variant .hero{min-height:620px}.original-variant .hero-inner{padding:65px 20px}.original-variant .hero h1{font-size:32px}.original-variant .hero p{font-size:16px}.original-variant .hero-visual img{object-position:center}.preview-bar{gap:6px 12px;font-size:10px}}

.original-hero-title>span{display:block;white-space:nowrap}@media(max-width:700px){.original-variant .hero .original-hero-title{font-size:clamp(23px,6.5vw,32px);letter-spacing:.02em;line-height:1.65}}


/* A: expressive serif composition retaining the original building. */
.original-variant .hero{min-height:720px}.original-variant .hero:after{background:linear-gradient(90deg,rgba(3,18,36,.88) 0%,rgba(3,18,36,.65) 42%,rgba(3,18,36,.15) 78%)}.original-variant .hero .original-hero-title{font-family:'Yu Mincho','Hiragino Mincho ProN','Noto Serif JP',serif;font-weight:700;line-height:1.25;letter-spacing:.035em;margin:0 0 32px;text-shadow:0 2px 18px rgba(0,0,0,.2)}.original-hero-title .hero-opening{font-size:clamp(36px,4.5vw,64px)}.original-hero-title .hero-emphasis{font-size:clamp(76px,9vw,132px);line-height:1.3;margin:4px 0 8px;letter-spacing:.015em}.original-hero-title .hero-future{font-size:clamp(40px,5vw,72px)}.original-variant .hero-inner{padding:80px 32px}.original-variant .hero p{font-size:17px;line-height:2.1;font-weight:500}.original-variant .hero-visual img{object-position:58% center}@media(max-width:700px){.original-variant .hero{min-height:660px;align-items:center}.original-variant .hero-inner{padding:64px 24px 62px}.original-variant .hero .original-hero-title{line-height:1.3;letter-spacing:.02em;margin-bottom:30px}.original-hero-title .hero-opening{font-size:clamp(30px,9.3vw,52px)}.original-hero-title .hero-emphasis{font-size:clamp(72px,23vw,128px);line-height:1.22;margin:7px 0 14px}.original-hero-title .hero-future{font-size:clamp(32px,9.5vw,58px);letter-spacing:0}.original-variant .hero p{font-size:clamp(12px,3.6vw,16px);line-height:2.1}.original-variant .hero:after{background:linear-gradient(90deg,rgba(3,18,36,.76),rgba(3,18,36,.44) 65%,rgba(3,18,36,.18))}.original-variant .hero-visual img{object-position:55% center}}

/* Client supplied hero photograph: preserve the main tower on narrow screens. */
.original-variant .hero-visual img{object-position:46% center}@media(max-width:700px){.original-variant .hero-visual img{object-position:43% center}.original-variant .pair .label{font-size:11px}}

/* Compact mobile hero, anchored to the photograph's top edge. */
@media(max-width:700px){.original-variant .hero{min-height:520px}.original-variant .hero-inner{padding:46px 24px 42px}.original-variant .hero-visual img{object-position:43% top}}

/* Show the certificate itself, with a full-image enlargement link. */
.original-variant .certificate-link{display:inline-flex;flex-direction:column;align-items:flex-start;gap:12px;padding:12px 0;color:var(--gold)}.original-variant .certificate-thumbnail{display:block;width:240px;max-width:100%;height:auto;object-fit:contain;background:#fff;border:1px solid #c5ab69}.original-variant .certificate-link span{font-size:13px;line-height:1.8}.original-variant #company{scroll-margin-top:100px}@media(max-width:700px){.original-variant .certificate-thumbnail{width:200px}}

/* Consistent company facts and a balanced certificate panel. */
.original-variant .company-inner{max-width:860px}.company-facts{margin:0}.company-fact{display:grid;grid-template-columns:160px minmax(0,1fr);gap:24px;padding:18px 0;border-bottom:1px solid var(--line);font-size:14px;line-height:1.9}.company-fact dt{color:#d6b66d}.company-fact dd{margin:0}.company-certificate{margin-top:32px;padding:30px 36px;display:flex;align-items:center;justify-content:space-between;gap:32px;border:1px solid var(--line);background:rgba(255,255,255,.025)}.certificate-eyebrow{font-size:10px;letter-spacing:.18em;color:#d6b66d}.company-certificate h3{font-size:24px;margin:12px 0}.company-certificate p{font-size:13px;line-height:1.9;color:#ced7e1}.company-certificate .certificate-hint{margin-top:24px}.original-variant .company-certificate .certificate-link{padding:0;align-items:center;flex-shrink:0}.original-variant .company-certificate .certificate-thumbnail{width:190px}@media(max-width:600px){.company-fact{grid-template-columns:84px minmax(0,1fr);gap:16px;font-size:13px;padding:16px 0}.company-certificate{padding:24px 18px;gap:20px;flex-direction:column;align-items:center;text-align:center}.company-certificate h3{font-size:22px}.company-certificate .certificate-hint{display:none}.original-variant .company-certificate .certificate-thumbnail{width:210px}}

.works-page-link{display:flex;align-items:center;justify-content:space-between;max-width:480px;border:1px solid #c5ab69;padding:22px 26px;color:#e1bf70;text-decoration:none;font-size:18px}.works-page-link:hover{background:#ffffff0a}.works-back{display:inline-block;color:#e1bf70;margin-bottom:28px}.work-card{scroll-margin-top:110px}.company-fact .certificate-link{padding:0!important;font-size:14px}

.work-picker{max-width:900px;margin:auto}.work-choice{background:transparent;border-bottom:1px solid var(--line);color:white}.work-choice:first-child{border-top:1px solid var(--line)}.work-choice summary{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:24px 8px;cursor:pointer;list-style:none}.work-choice summary::-webkit-details-marker{display:none}.work-choice summary h3{margin:0;padding:0;color:white;background:transparent;font-size:20px}.work-choice-mark{color:#d6b66d;font-size:25px}.work-choice[open] .work-choice-mark{transform:rotate(45deg)}.work-choice-content{padding:0 8px 24px}.work-choice-content p{font-size:13px;color:#cdd6e0}.work-choice .pair img{height:auto;width:100%;object-fit:contain}.work-choice summary:focus-visible{outline:2px solid #d6b66d;outline-offset:3px}@media(max-width:600px){.work-choice summary h3{font-size:18px}.work-choice summary{padding:22px 0}.work-choice-content{padding:0 0 20px}}

.service-placeholder{margin:0}.service-placeholder img{display:block;width:100%;max-height:480px;object-fit:contain}.service-placeholder figcaption{padding:12px;background:#102e48;color:#ead39d;font-size:13px;line-height:1.8}

.phone-link{display:inline-block;color:inherit;text-decoration:none}.phone-link:hover{text-decoration:underline}.email-note{line-height:1.9}.navlinks a:focus-visible,.menu:focus-visible,.btn:focus-visible,.phone-link:focus-visible{outline:2px solid #e1bf70;outline-offset:4px}

.service-static{cursor:default}.service-static:hover{background:transparent}