:root{--nav-h:82px;--menu-bg:#fff;--menu-color:#223447;--ink:#24384a;--accent:#306a65;--pale:#edf3f4}
body{background:#fff;color:var(--ink);font-family:'Yu Gothic','Hiragino Kaku Gothic ProN',sans-serif;line-height:1.8}
.sample-note{font-size:10px;letter-spacing:0;padding:0 12px}
.header{height:var(--nav-h);position:sticky;top:0;z-index:20;background:#fffffff5;display:flex;align-items:center;justify-content:space-between;padding:0 4vw;gap:24px;border-bottom:1px solid #dde5e7;backdrop-filter:blur(12px)}
.brand{font-size:22px;line-height:1.4}.brand small{font-size:10px;display:block;font-weight:500;letter-spacing:.12em;margin-top:3px}.site-nav{gap:clamp(12px,1.7vw,24px)}.site-nav a{font-weight:700;font-size:12px}.site-nav .nav-contact{background:var(--accent);color:white;padding:11px 18px;text-decoration:none}.nav-contact span{margin-left:12px}
.hero-photo{height:55svh;min-height:360px;position:relative;overflow:hidden;background:#edf3f4;touch-action:pan-y}.hero-track{height:100%;display:flex;transform:translateX(0);transition:transform 900ms cubic-bezier(.25,.7,.25,1);will-change:transform}.hero-slide{position:relative;flex:0 0 100%;height:100%;min-width:0}.hero-slide img{height:100%;width:100%;object-fit:cover;object-position:center 58%}.hero-slide img[src$="white-kitchen.webp"]{object-position:center 54%}.hero-slide img[src$="roof-exterior.webp"]{object-position:center 43%}
.scene-label{position:absolute;left:5vw;bottom:24px;padding:7px 13px;background:#fffdf5eb;color:#24384a;font-size:13px;font-weight:700}.hero-controls{position:absolute;right:5vw;bottom:20px;display:flex;gap:9px;align-items:center;background:#fffffff0;padding:5px 8px;border-radius:3px;color:#24384a}.slide-arrow,.slide-pause,.slide-dots button{border:0;background:transparent;cursor:pointer;color:inherit}.slide-arrow{font-size:18px;width:36px;height:36px}.slide-dots{display:flex;gap:2px;align-items:center}.slide-dots button{position:relative;width:26px;height:36px;padding:0}.slide-dots button:before{content:'';position:absolute;width:6px;height:6px;left:10px;top:15px;border-radius:50%;background:#aebdc2}.slide-dots button[aria-pressed=true]:before{background:#24384a;width:8px;height:8px;left:9px;top:14px}.slide-pause{font-size:11px;border-left:1px solid #ccd7d9;padding:0 9px;height:30px;min-width:58px}.photo-note{position:absolute;top:16px;right:20px;font-size:10px;background:#ffffffcb;padding:3px 8px}
.hero-summary{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:end;padding:24px 5vw 28px;background:var(--pale);min-height:185px}.hero-summary p{font-size:12px;font-weight:700;letter-spacing:.09em;margin:0 0 8px}.hero-summary h1{font-size:clamp(33px,4vw,55px);line-height:1.2;margin:0}.hero-summary .text-link{margin-bottom:10px}
.section-wrap{max-width:1240px;padding:76px 5vw}.section-kicker{color:#647e89;display:inline-block;margin-bottom:10px;font-size:11px;letter-spacing:.16em}h2{font-size:clamp(28px,3.15vw,43px);line-height:1.45;margin:5px 0 30px;letter-spacing:.01em}h3{line-height:1.5}.text-link{display:inline-flex;align-items:center;gap:24px;font-size:14px;font-weight:700;border-bottom:1px solid #9cafb6;padding:7px 0}.text-link:hover{color:var(--accent)}.button{display:inline-flex;justify-content:center;align-items:center;gap:35px;border:1px solid var(--accent);background:var(--accent);color:#fff;padding:15px 26px;font-family:inherit;font-weight:700;font-size:14px;line-height:1.7;cursor:pointer;text-decoration:none;transition:background .2s}.button:hover{background:#244f4c}.button-light{background:#fff;color:var(--ink);border-color:#bacacf}.button-light:hover{background:var(--pale)}
.services .section-wrap{padding-bottom:64px}.service-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:34px}.service-card{display:block}.service-card img{width:100%;aspect-ratio:1.55;object-fit:cover;transition:filter .25s}.service-card:hover img{filter:brightness(1.04)}.service-card>div{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #ccd7d9;padding:18px 0 15px;gap:8px}.service-card h3{font-size:clamp(20px,2vw,27px);margin:0}.service-card>div>span{font-size:23px;color:var(--accent)}
.service-detail{scroll-margin-top:var(--nav-h)}.detail-tint{background:#f4f6f5}.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:6vw;align-items:center}.detail-grid>img{width:100%;aspect-ratio:1.3;object-fit:cover}.detail-grid h2{font-size:clamp(27px,2.8vw,38px);margin:3px 0 20px;line-height:1.5}.detail-items{font-size:14px;font-weight:700;color:var(--accent);margin-bottom:14px}.detail-copy{font-size:15px;line-height:1.95;margin:0 0 20px;max-width:30em}.reverse>img{grid-column:2;grid-row:1}.reverse>div{grid-column:1;grid-row:1}
.works{background:var(--pale)}.commitments{display:grid;grid-template-columns:repeat(3,1fr);gap:35px;margin:35px 0 65px}.commitments>div{border-top:1px solid #aec1c8;padding-top:14px}.commitments span{font-size:11px;color:#647e89}.commitments h3{font-size:clamp(21px,2.1vw,27px);margin:8px 0}.commitments p{font-size:13px;line-height:1.8;margin:0}.works-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:6vw;align-items:center}.works figure{margin:0}.works figure img{width:100%;aspect-ratio:1.35;object-fit:cover}.works figcaption,.greeting figcaption{font-size:10px;color:#647780;margin-top:7px}.works h3{font-size:clamp(25px,2.7vw,36px);margin:4px 0 18px}.works p{font-size:15px;line-height:1.9}.works .button{margin-top:13px}
.demo-caption{font-size:11px;color:#647780;line-height:1.8}.company h2{margin-bottom:12px}.company-stats{display:grid;grid-template-columns:1fr 1fr 1fr;gap:35px;margin-top:40px}.company-stats>div{border-top:1px solid #b7c8ce;padding-top:18px}.company-stats>div>span{font-size:13px;font-weight:700}.company-stats p{margin:10px 0 0;font-size:18px;line-height:1.3}.company-stats strong{font-size:clamp(42px,5vw,65px);letter-spacing:-.04em;font-weight:600;font-family:'Segoe UI',sans-serif;margin-right:5px}.company-stats small{display:block;font-size:10px;margin-top:10px;color:#647780}.company-stats .business-label{font-size:25px;font-weight:700;line-height:1.55;margin-top:15px}
.greeting{background:#faf8f3}.greeting-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:8vw;align-items:center}.greeting figure{margin:0}.greeting figure img{width:100%;aspect-ratio:4/5;object-fit:cover}.greeting h2{font-size:clamp(28px,3vw,41px);margin-bottom:25px}.handwritten{font-family:'游教科書','Yu Kyokasho','HG正楷書体-PRO','HGS行書体','Yu Mincho',serif;font-size:clamp(17px,1.65vw,21px);line-height:2;letter-spacing:.035em}.handwritten p{margin:0 0 18px}.representative-name{margin-top:22px;text-align:right}.representative-name small{font-size:11px;display:block;font-family:'Yu Gothic',sans-serif}.representative-name span{font-size:30px;font-family:'HGS行書体','游教科書','Yu Mincho',serif;letter-spacing:.15em}.greeting .demo-caption{margin-bottom:0}
.flow{background:#fff}.flow-steps{display:grid;grid-template-columns:repeat(5,1fr);list-style:none;padding:0;margin:40px 0 0;gap:0}.flow-steps li{position:relative;padding:26px 12px 26px 25px;background:#306a6510;isolation:isolate;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:130px;border-right:2px solid #fff;clip-path:polygon(0 0,90% 0,100% 50%,90% 100%,0 100%,10% 50%)}.flow-steps li:first-child{clip-path:polygon(0 0,90% 0,100% 50%,90% 100%,0 100%);padding-left:14px}.flow-steps span{font:12px/1.2 'Segoe UI',sans-serif;color:#7d9696;margin-bottom:12px}.flow-steps strong{font-size:clamp(18px,2vw,25px);line-height:1.4;color:var(--ink);white-space:nowrap}
.faq{background:#f4f6f5}.faq .section-wrap{max-width:1000px}.faq details{border-top:1px solid #c0cfd2;padding:21px 0}.faq details:last-of-type{border-bottom:1px solid #c0cfd2}.faq summary{font-size:16px;font-weight:700;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:25px;cursor:pointer}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:'+';font-size:24px;font-weight:400;color:var(--accent)}.faq details[open] summary:after{content:'−'}.faq details p{font-size:14px;margin-bottom:0;max-width:46em}.faq .demo-caption{margin-bottom:0}
.contact{background:#e9f0f0}.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:8vw;align-items:start}.contact h2{font-size:clamp(34px,3.8vw,52px);margin-bottom:23px}.contact p{font-size:14px;line-height:2}.contact .contact-demo{font-size:11px;color:#647780;margin-top:30px}.form-row{margin-bottom:18px}.form-row label{font-size:13px;display:block;font-weight:700;margin-bottom:7px}.form-row label span{font-size:10px;color:var(--accent);border:1px solid #8fb0ac;padding:2px 5px;margin-left:10px}.form-row label small{font-size:10px;font-weight:400;color:#647780;margin-left:10px}input,select,textarea{display:block;width:100%;background:#fff;border:1px solid #bdcfd0;border-radius:0;padding:12px 14px;color:var(--ink);font:16px/1.5 'Yu Gothic',sans-serif;min-height:48px}textarea{resize:vertical}input::placeholder,textarea::placeholder{color:#87979e;font-size:13px}.form-submit{width:100%;padding:17px;justify-content:space-between}.contact .form-note{font-size:11px;margin:12px 0 0;line-height:1.8}.site-footer{background:#24384a;color:#fff;padding:35px 5vw;display:flex;align-items:center;justify-content:space-between;gap:25px;flex-wrap:wrap}.site-footer>div{display:flex;gap:25px;font-size:12px}.site-footer>p{width:100%;font-size:10px;opacity:.75;margin:0}
dialog{border:0;padding:0;width:min(680px,calc(100% - 32px));max-height:90svh;color:var(--ink);background:#fff}dialog::backdrop{background:#1d323b88;backdrop-filter:blur(3px)}.dialog-body{padding:35px}.dialog-body h2{font-size:28px;margin:5px 0 14px}.dialog-body>p{font-size:13px}.dialog-body dl{margin:25px 0}.dialog-body dl>div{padding:12px 0;border-top:1px solid #ccd8db}.dialog-body dt{font-size:11px;font-weight:700;color:#617c85}.dialog-body dd{margin:5px 0 0;font-size:15px;white-space:pre-wrap;overflow-wrap:anywhere}.dialog-actions{display:flex;gap:12px}.dialog-actions .button{flex:1;gap:0;padding:13px}
.case-page .section-wrap{max-width:960px}.case-page h1{font-size:clamp(30px,5vw,56px);line-height:1.3}.case-page h2{font-size:27px;border-top:1px solid #a8bdc5;padding-top:22px;margin-top:55px}.case-page p{line-height:1.9;font-size:16px}.case-page .fine{font-size:11px}.case-image{width:100%;margin-top:30px}.case-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:38px 0}.case-summary>div,.case-options>div{background:var(--pale);padding:22px;border-top:3px solid #839ca8}.case-summary b,.case-options b{font-size:17px}.case-summary p,.case-options p{font-size:14px;margin:10px 0 0}.case-options{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin:22px 0}.case-checks{padding-left:1.4em;line-height:1.9;font-size:16px}.case-checks li{padding:4px 0}.case-note{background:var(--pale);padding:22px;margin:45px 0}.case-note p{margin-bottom:0}.case-back{font-size:12px;font-weight:700;border-bottom:1px solid currentColor;padding-bottom:3px}.case-page .jump{background:var(--accent);color:#fff;border-color:var(--accent)}
@media(max-width:1000px){.header{padding:0 3vw;gap:18px}.brand{font-size:20px}.site-nav{gap:12px}.site-nav a{font-size:11px}.site-nav .nav-contact{padding:10px 12px}.hero-controls{right:3vw}.section-wrap{padding:60px 5vw}}
@media(max-width:850px){:root{--nav-h:68px}.header{padding:0 20px}.brand{font-size:19px}.site-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;padding:15px 22px;flex-direction:column;align-items:stretch;gap:0;box-shadow:0 15px 25px #24384a15}.site-nav.open{display:flex}.site-nav a{padding:13px 0;font-size:15px;border-bottom:1px solid #dce5e7}.site-nav .nav-contact{padding:14px 18px;margin:12px 0 0;display:flex;justify-content:space-between}.menu-button{display:block}.detail-grid{gap:5vw}.contact-grid{gap:5vw}.greeting-grid{gap:6vw}}
@media(max-width:760px){.section-wrap{padding:48px 22px}h2{font-size:29px;margin-bottom:24px}.hero-photo{height:48svh;min-height:340px;max-height:480px}.hero-slide img{object-position:56% center}.hero-slide img[src$="white-kitchen.webp"]{object-position:48% center}.hero-slide img[src$="roof-exterior.webp"]{object-position:48% center}.scene-label{left:15px;bottom:68px;font-size:11px;padding:5px 9px}.hero-controls{right:15px;bottom:14px;gap:5px;padding:4px 7px}.photo-note{top:12px;right:12px;font-size:9px}.hero-summary{display:block;padding:24px 22px 25px;min-height:0}.hero-summary p{font-size:10px;letter-spacing:.02em}.hero-summary h1{font-size:clamp(29px,7.7vw,39px);line-height:1.35}.hero-summary .text-link{margin:15px 0 0;font-size:12px;gap:20px}.service-cards{gap:10px;margin-top:25px}.service-card img{aspect-ratio:.85;object-position:center}.service-card>div{padding:13px 0;display:block;position:relative}.service-card h3{font-size:clamp(13px,3.65vw,18px);white-space:nowrap;line-height:1.6}.service-card>div>span{display:block;font-size:19px;line-height:1.2;margin-top:5px}.services .section-wrap{padding-bottom:44px}.detail-grid,.works-grid,.greeting-grid,.contact-grid{display:block}.detail-grid>img{aspect-ratio:1.35;margin-bottom:25px}.detail-grid h2{font-size:29px;line-height:1.5;margin-bottom:18px}.detail-items{font-size:12px;margin-bottom:12px}.detail-copy{font-size:14px;line-height:1.9;margin-bottom:18px}.reverse>div,.reverse>img{grid-column:auto;grid-row:auto}.commitments{gap:20px;grid-template-columns:1fr;margin:28px 0 40px}.commitments>div{position:relative;padding:13px 0 0 40px}.commitments span{position:absolute;left:0;top:17px}.commitments h3{font-size:23px;margin:0 0 5px}.commitments p{font-size:13px}.works figure{margin-bottom:23px}.works h3{font-size:29px}.works p{font-size:14px}.company-stats{grid-template-columns:1fr 1fr;gap:25px 18px;margin-top:30px}.company-stats strong{font-size:45px}.company-stats>div>span{font-size:12px}.company-stats>div:last-child{grid-column:1/-1;display:flex;gap:25px;align-items:center}.company-stats .business-label{font-size:20px;margin:0}.company-stats .business-label br{display:none}.company-stats small{font-size:9px}.greeting figure{max-width:320px;margin:0 auto 32px}.greeting h2{font-size:29px}.handwritten{font-size:18px;line-height:2.05;letter-spacing:.015em}.representative-name span{font-size:28px}.flow-steps{grid-template-columns:1fr;margin-top:25px;gap:3px}.flow-steps li,.flow-steps li:first-child{flex-direction:row;gap:25px;min-height:81px;padding:14px 20px 22px;clip-path:polygon(0 0,100% 0,100% 75%,50% 100%,0 75%);border:0}.flow-steps span{margin:0;font-size:13px}.flow-steps strong{font-size:23px;min-width:6em}.faq summary{font-size:15px;gap:18px;line-height:1.8}.faq details{padding:18px 0}.faq details p{font-size:13px}.contact h2{font-size:36px}.contact p{font-size:13px}.contact .contact-demo{margin:18px 0 28px;font-size:11px}.form-row{margin-bottom:17px}.site-footer{padding:30px 22px;display:block}.site-footer>div{flex-wrap:wrap;gap:14px 23px;margin:24px 0 20px}.dialog-body{padding:25px 22px}.dialog-body h2{font-size:25px}.dialog-actions{flex-direction:column}.case-summary,.case-options{grid-template-columns:1fr}.case-summary{gap:10px}.case-checks{font-size:14px}.case-back{font-size:11px}}
@media(prefers-reduced-motion:reduce){.hero-track{transition:none}.service-card img{transition:none}}
.mobile-contact{display:none}
@media(max-width:850px){.header{gap:10px}.mobile-contact{display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:white;font-size:11px;font-weight:700;padding:10px 12px;min-height:42px;margin-left:auto;white-space:nowrap}.menu-button{font-size:11px;min-height:42px;padding:9px}.brand{font-size:18px}.handwritten{font-size:17px}}
@media(max-width:370px){.header{padding:0 15px;gap:8px}.brand{font-size:16px}.mobile-contact{padding:9px 10px;font-size:10px}.menu-button{font-size:10px;padding:8px}.handwritten{font-size:15px;letter-spacing:.01em}}
.mobile-break{display:none}
@media(max-width:760px){.services h2{font-size:clamp(23px,7.15vw,29px);letter-spacing:0;white-space:nowrap}.mobile-break{display:block}}
#top{scroll-margin-top:var(--nav-h)}
@font-face{font-family:'Massugu Hand';src:url('assets/message-handwriting.ttf') format('truetype');font-weight:400;font-style:normal;font-display:swap}
.handwritten,.representative-name span{font-family:'Massugu Hand','游教科書','Yu Kyokasho','Yu Mincho',serif}
@media(max-width:760px){.hero-summary h1{font-size:clamp(26px,7.6vw,39px)}.detail-grid h2,.greeting h2{font-size:clamp(23px,6.7vw,29px)}.works h3{font-size:clamp(23px,6.7vw,29px)}}