:root{--black:#050505;--dark:#101112;--mint:#69d2c9;--text:#181818;--muted:#6f7478;--line:#d9dddd}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;color:var(--text);background:#fff;line-height:1.9;letter-spacing:.03em;overflow-x:hidden}
a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(1120px,88vw);margin:0 auto}.mobile-only,.mobile-call,.menu-toggle,.menu-button{display:none}
.site-header{position:absolute;top:0;left:0;width:100%;z-index:10;color:#fff}.header-inner{width:min(1180px,92vw);height:86px;margin:0 auto;display:flex;align-items:center;justify-content:space-between}.brand img{width:235px}.nav{display:flex;gap:34px;font-size:14px;font-weight:700}.nav a{padding:24px 0 10px;opacity:.95}.nav a.active{border-bottom:3px solid var(--mint)}
.hero{height:640px;position:relative;background:url("assets/hero_2.png") center top/cover no-repeat;color:#fff;display:grid;place-items:center;text-align:center}.hero-overlay{position:absolute;inset:0;background:rgba(0,0,0,.08)}.hero-content{position:relative;z-index:1;margin-top:55px}.hero-logo{width:430px;margin:0 auto 26px}.hero h1{font-family:"Hiragino Mincho ProN","Yu Mincho",serif;font-size:38px;line-height:1.75;font-weight:500;letter-spacing:.08em;margin:0 0 18px;text-shadow:0 2px 10px rgba(0,0,0,.4)}.hero p{font-size:15px;font-weight:700;margin:0;text-shadow:0 2px 8px rgba(0,0,0,.55)}.scroll-line{display:block;width:2px;height:82px;background:var(--mint);margin:38px auto 0}
.section-light{background:#fff;padding:82px 0}.soft{background:linear-gradient(#fafafa,#fff)}.about{overflow:hidden}.about-grid{display:grid;grid-template-columns:1fr 48%;gap:52px;align-items:center}.about h2,.company h2,.services h2{font-size:30px;line-height:1.3;margin:0 0 30px;font-weight:800;letter-spacing:.06em}.about-text p{font-weight:700;font-size:15px;margin:0 0 54px}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.features div{text-align:center}.features .icon{display:block;font-size:42px;filter:grayscale(1);opacity:.75;margin-bottom:12px}.features strong{font-size:14px}.about-image{border-radius:120px 0 0 0;overflow:hidden;min-height:360px}.about-image img{width:100%;height:100%;object-fit:cover}.center{text-align:center}.title-line{width:62px;height:2px;background:var(--mint);margin:18px auto 52px}
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.service-grid article{min-height:172px;padding:30px 24px;text-align:center;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;flex-direction:column;align-items:center;justify-content:center}.service-grid span{font-size:42px;line-height:1;margin-bottom:16px;filter:grayscale(1);opacity:.75}.service-grid h3{font-size:17px;line-height:1.5;margin:0;font-weight:800}.service-grid p{font-size:13px;line-height:1.9;margin:10px 0 0;color:#343434}.service-message{grid-column:span 2}.service-message h3{font-size:22px}
.company{padding-top:74px}.company-grid{display:grid;grid-template-columns:44% 56%;gap:46px;align-items:start}.info-list{margin:0;font-size:15px}.info-list div{display:grid;grid-template-columns:120px 1fr;margin-bottom:18px}.info-list dt{font-weight:800;color:#555}.info-list dd{margin:0;font-weight:700}.map iframe{width:100%;height:245px;border:0;display:block}.contact-band{background:#070707;color:#fff;padding:44px 0}.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:40px;align-items:center}.contact-band h2{font-size:28px;margin:0 0 8px}.contact-band p{margin:0;font-size:15px}.phone-box{display:flex;align-items:center;gap:24px}.phone-icon{font-size:48px}.phone-number{font-size:48px;line-height:1;font-weight:500;letter-spacing:.08em}.footer{background:linear-gradient(#252525,#171717);color:#fff;padding:34px 0 24px}.footer-inner{display:flex;justify-content:space-between;align-items:center}.footer img{width:245px}.footer nav{display:flex;gap:17px;font-size:13px;color:#ddd}.copy{text-align:center;font-size:12px;color:#aaa;margin:24px 0 0}

@media(max-width:900px){
  html{scroll-padding-top:64px}.container{width:min(680px,88vw)}.site-header{position:absolute}.header-inner{height:68px;width:100%;padding:0 20px;justify-content:flex-end}.brand{display:none}.menu-button{display:flex;width:38px;height:38px;flex-direction:column;justify-content:center;gap:6px;cursor:pointer;position:relative;z-index:12}.menu-button span{display:block;width:27px;height:2px;background:var(--mint);margin-left:auto;transition:.25s}.menu-toggle:checked+.menu-button span:nth-child(1){transform:translateY(8px) rotate(45deg)}.menu-toggle:checked+.menu-button span:nth-child(2){opacity:0}.menu-toggle:checked+.menu-button span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
  .nav{position:fixed;inset:0 0 auto 0;background:rgba(5,5,5,.98);padding:90px 28px 30px;display:flex;flex-direction:column;gap:0;transform:translateY(-110%);transition:.3s;box-shadow:0 8px 24px rgba(0,0,0,.3)}.nav a{padding:14px 4px;border-bottom:1px solid #333}.nav a.active{border-bottom:1px solid #333;color:var(--mint)}.menu-toggle:checked~.nav{transform:translateY(0)}
  .hero{height:min(700px,100svh);min-height:570px;background-image:url("assets/hero.png");background-position:center center}.hero-overlay{background:linear-gradient(rgba(0,0,0,.18),rgba(0,0,0,.22))}.hero-content{margin-top:10px;width:88%}.hero-logo{width:min(340px,78vw);margin-bottom:24px}.hero h1{font-size:clamp(27px,5.5vw,34px);line-height:1.65}.hero p{font-size:13px;line-height:2;padding:0}.scroll-line{height:58px;margin-top:26px}
  .section-light{padding:62px 0}.about-grid,.company-grid,.contact-grid{grid-template-columns:1fr;gap:36px}.about h2,.company h2,.services h2{font-size:27px;text-align:center}.about-text p{text-align:center;font-size:14px;margin-bottom:38px}.features{grid-template-columns:1fr;gap:14px}.features div{display:grid;grid-template-columns:60px 1fr;align-items:center;text-align:left;padding:12px 0;border-bottom:1px solid #eee}.features .icon{font-size:36px;margin:0}.features strong{font-size:15px}.about-image{border-radius:70px 0 0 0;min-height:0}.about-image img{aspect-ratio:5/4;object-position:center;object-fit:cover}.service-grid{grid-template-columns:repeat(2,1fr)}.service-grid article{min-height:140px;padding:24px 12px}.service-grid span{font-size:36px}.service-grid h3{font-size:15px}.service-message{grid-column:span 2;min-height:150px}.company{padding-top:62px}.company-grid{gap:28px}.map iframe{height:360px}.contact-band{text-align:center;padding:46px 0}.phone-box{justify-content:center}.phone-number{font-size:38px}.footer{padding-bottom:110px}.footer-inner{display:block}.footer img{width:210px;margin:0 auto 26px}.footer nav{display:flex;flex-direction:column;gap:0;border-top:1px solid #444}.footer nav span{display:none}.footer nav a{padding:11px 4px;border-bottom:1px solid #444}.mobile-call{display:grid;position:fixed;z-index:30;left:0;right:0;bottom:0;grid-template-columns:auto auto 1fr;align-items:center;justify-content:center;gap:10px;min-height:72px;padding:10px 18px calc(10px + env(safe-area-inset-bottom));background:linear-gradient(100deg,#1b8f8b,#53c7bf);color:#fff;box-shadow:0 -5px 20px rgba(0,0,0,.25)}.mobile-call span{font-size:27px}.mobile-call strong{font-size:18px}.mobile-call small{font-size:15px;font-weight:700}.mobile-only{display:inline}
}

@media(max-width:520px){
  .container{width:90vw}.hero{min-height:620px;height:100svh;background-position:center center}.hero-content{width:92%;padding-top:14px}.hero-logo{width:min(280px,72vw)}.hero h1{font-size:25px;letter-spacing:.05em}.hero p{font-size:12px;line-height:1.9}.section-light{padding:52px 0}.about h2,.company h2,.services h2{font-size:23px}.title-line{margin-bottom:34px}.service-grid article{min-height:126px;padding:20px 8px}.service-grid span{font-size:31px;margin-bottom:12px}.service-grid h3{font-size:13px}.service-message h3{font-size:19px}.service-message p{font-size:12px}.info-list div{grid-template-columns:84px 1fr;gap:8px;font-size:13px;margin-bottom:14px}.map{margin-left:-5vw;margin-right:-5vw}.map iframe{height:330px}.contact-band h2{font-size:24px}.contact-band p{font-size:13px}.phone-box{display:block}.phone-icon{display:block;font-size:34px}.phone-number{font-size:31px}.phone-box p{font-size:12px;margin-top:8px}.mobile-call{grid-template-columns:auto auto;min-height:68px}.mobile-call small{grid-column:1/-1;font-size:12px;line-height:1;margin-top:-3px}
}

@media(max-width:360px){.hero h1{font-size:22px}.service-grid h3{font-size:12px}.info-list div{grid-template-columns:76px 1fr}.phone-number{font-size:27px}}