:root{--ink:#24282c;--charcoal:#202224;--deep:#17222c;--blue:#29abe2;--pale:#f4f7f9;--line:#dfe6eb;--content:1160px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);font-family:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;line-height:1.75;background:#fff}
img{max-width:100%;display:block}
a{color:inherit}
button{font:inherit}
#business,#works{scroll-margin-top:88px}
.site-header{position:sticky;top:0;z-index:100;background:#212121;box-shadow:0 2px 8px #0002}
.site-header #luxbar{max-width:var(--content)}
.site-header .luxbar-menu{min-height:68px}
.site-header .luxbar-header{height:68px;white-space:nowrap}
.site-header .luxbar-brand{font-size:22px;padding:0 20px!important;color:#fff}
.site-header .luxbar-navigation>li:not(.luxbar-header)>a{display:flex;align-items:center;min-height:68px;padding:0 10px;color:#fff;font-size:14px;text-decoration:none;white-space:nowrap}
.site-header .luxbar-navigation a:hover,.site-header .luxbar-navigation a[aria-current="page"]{color:#88d9f6}
.site-header .luxbar-checkbox:not(:checked)~.luxbar-menu{height:68px}
.site-header .luxbar-checkbox:checked~.luxbar-menu{height:auto}
.hero{min-height:540px;position:relative;display:flex;align-items:center;overflow:hidden;color:#fff;background:var(--deep)}
.hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 52%}
.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,29,43,.85),rgba(11,29,43,.42) 46%,rgba(11,29,43,.08) 80%)}
.hero-copy{position:relative;width:min(var(--content),calc(100% - 48px));margin:auto;text-shadow:0 1px 4px #0008}
.hero-copy .eyebrow{font-size:12px;letter-spacing:.25em;font-weight:700;color:#b3e8ff}
.hero-copy h1{font-size:clamp(33px,4vw,58px);line-height:1.35;letter-spacing:.04em;margin:18px 0 25px;font-weight:700}
.hero-copy h1:after{display:block;content:"";width:56px;height:4px;background:var(--blue);margin-top:24px}
.hero-copy p:last-child{font-size:16px;letter-spacing:.05em}
.section{padding:70px max(24px,calc((100vw - var(--content))/2))}
.section-heading{text-align:center;margin:0 auto 42px;max-width:760px}
.section-rule{display:block;width:58px;height:4px;background:var(--blue);margin:0 auto 16px}
.section-heading h2{font-size:clamp(27px,3vw,38px);margin:0 0 10px;line-height:1.4}
.section-heading p{margin:0;color:#64707a}
.business-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.business-grid article{background:#23292d;box-shadow:0 5px 18px #17222c20;overflow:hidden}
.business-grid img{width:100%;aspect-ratio:1.45;object-fit:cover}
.business-grid h3{color:#fff;font-size:19px;margin:0;padding:18px 22px;border-left:4px solid var(--blue)}
.works-section{background:#252a2e;color:#fff}
.works-section .section-heading p{color:#c9d0d5}
.works-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px}
.works-grid a{display:block;overflow:hidden;background:#3a4146;box-shadow:0 2px 8px #0003}
.works-grid img{width:100%;aspect-ratio:1.42;object-fit:cover;transition:transform .25s}
.works-grid a:hover img{transform:scale(1.04)}
.site-footer{background:#1c1f21;color:#fff;padding:56px 24px 25px}
.footer-inner{max-width:var(--content);margin:auto}
.footer-top{display:flex;gap:38px;justify-content:space-between;align-items:flex-start}
.footer-brand strong{display:block;font-size:27px;line-height:1.3;margin-bottom:24px}
.footer-brand strong:after{display:block;content:"";width:48px;height:3px;background:var(--blue);margin-top:14px}
.footer-brand span{color:#bdc6cd;font-size:14px}
.footer-top nav ul{list-style:none;display:flex;flex-wrap:wrap;gap:16px 24px;margin:8px 0 0;padding:0}
.footer-top nav a{text-decoration:none;font-size:14px}
.footer-top nav a:hover{color:#8edaff}
.footer-contact{text-align:right;margin:22px 0 32px}
.footer-contact a{display:inline-block;border:1px solid var(--blue);padding:10px 30px;text-decoration:none}
.footer-contact a:hover{background:var(--blue);color:#10202b}
.footer-contact{display:flex;justify-content:flex-end;gap:10px;flex-wrap:wrap}
.footer-contact a{white-space:nowrap}
.contact-page{min-height:650px}
.contact-options{max-width:760px;margin:0 auto 28px;display:flex;gap:12px;flex-wrap:wrap}
.contact-options a{display:inline-block;border:1px solid var(--blue);color:#087eae;text-decoration:none;padding:9px 17px;font-weight:700}
.contact-form{max-width:760px;margin:auto;display:grid;gap:21px}
.contact-form label{display:block;font-weight:700}
.contact-form label span{display:inline-block;margin-left:8px;color:#a03920;font-size:12px}
.contact-form input,.contact-form select,.contact-form textarea{display:block;width:100%;margin-top:7px;border:1px solid #aab9c2;border-radius:3px;background:#fff;padding:12px 14px;font:inherit;font-weight:400}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{outline:3px solid #8edaff;outline-offset:1px}
.contact-honeypot{position:absolute;left:-9999px;height:1px;overflow:hidden}
.contact-note{margin:0;color:#5e6b74;font-size:13px}
.contact-form button{justify-self:start;background:#168ab9;color:#fff;border:0;padding:12px 42px;font-weight:700;cursor:pointer}
.contact-form button:hover{background:#0b6c94}
.footer-inner>small{display:block;padding-top:18px;border-top:1px solid #566069;color:#aab3b8}
.subpage-hero{background:#202a32;color:#fff;text-align:center;padding:70px 24px 65px;background-image:linear-gradient(120deg,#1b252d,#33404a)}
.subpage-hero p{color:#7bd3f5;font-size:13px;letter-spacing:.27em;margin:0 0 9px;font-weight:700}
.subpage-hero h1{font-size:38px;margin:0;line-height:1.3}
.company-page{padding-top:64px;padding-bottom:84px}
.company-page #company{max-width:940px;margin:0 auto}
.company-page #company>h2{display:none}
.company-page #company dl{display:grid;grid-template-columns:220px 1fr;margin:0;border-top:1px solid var(--line)}
.company-page #company dt,.company-page #company dd{border-bottom:1px solid var(--line);margin:0;padding:17px 20px}
.company-page #company dt{background:#f0f5f8;font-weight:700}
.company-page #company dd p{margin:0 0 12px}
.company-page #company dd p:last-child{margin:0}
.company-page #company a{color:#087eae}
.pipe-design{max-width:940px;margin:70px auto 0;padding:36px 42px;background:#24313a;color:#fff}
.pipe-design h3{font-size:28px;margin:0}
.pipe-design p{margin:0 0 22px;color:#bbdcea}
.pipe-design dl{display:grid;grid-template-columns:180px 1fr;gap:0 16px;margin:0}
.pipe-design dt,.pipe-design dd{padding:9px 0;border-bottom:1px solid #52616b;margin:0}
.pipe-design dt{font-weight:700;color:#8bdaf8}
.office-gallery{max-width:940px;margin:70px auto 0}
.office-gallery .swiper{width:100%;background:#e8eef2}
.office-gallery .swiper-slide img{width:100%;height:470px;object-fit:contain}
.office-gallery .swiper-pagination-bullet-active{background:var(--blue)}
.office-gallery .swiper-button-prev,.office-gallery .swiper-button-next{color:var(--blue)}
.benefits-page{min-height:570px}
.benefits-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.benefits-grid figure{margin:0;background:#fff;box-shadow:0 4px 22px #17222c1a;border:1px solid var(--line)}
.benefits-grid img{width:100%;aspect-ratio:1.3;object-fit:cover}
.benefits-grid figcaption{padding:13px 18px;font-weight:700;border-left:4px solid var(--blue)}
.review-banner{max-width:var(--content);margin:24px auto 0;padding:12px 18px;background:#fff3dc;border:1px solid #e4bd6d;color:#6e4a00;font-size:14px}
#recruit{background:#f6f8fa;padding:72px 24px 92px}
.recruit_container{max-width:var(--content);margin:auto}
.recruit_intro{display:grid;grid-template-columns:1.45fr 1fr;gap:38px;align-items:stretch}
.recruit_label,.recruit_cta_label{font-size:12px;letter-spacing:.25em;font-weight:700;color:#139ed6;margin:0 0 8px}
.recruit_intro h2{font-size:35px;margin:0 0 20px;line-height:1.35}
.recruit_intro h2 span{display:none}
.recruit_copy{font-size:24px;font-weight:700;margin:0 0 14px}
.recruit_desc{margin:0;color:#50606d}
.recruit_intro_panel{background:#24313a;color:#fff;border-top:4px solid var(--blue);padding:30px 34px;box-shadow:0 7px 25px #17222c1c}
.recruit_intro_panel_title{margin:0;color:#acdff1;font-size:14px}
.recruit_intro_panel_main{font-size:25px;font-weight:700;margin:6px 0 18px}
.recruit_intro_points{margin:0;padding-left:20px}
.recruit_highlights{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin:34px 0 65px}
.recruit_highlight_card{background:#fff;padding:24px 20px;border:1px solid var(--line);box-shadow:0 3px 14px #17222c0b}
.recruit_highlight_label{margin:0 0 8px;color:#148fbf;font-size:14px;font-weight:700}
.recruit_highlight_main{margin:0;font-size:22px;font-weight:700;line-height:1.4}
.recruit_highlight_sub{margin:9px 0 0;color:#65717a;font-size:13px}
.recruit_section_block{margin-top:55px}
.recruit_block_head h3{font-size:28px;margin:0 0 6px}
.recruit_block_head p{margin:0 0 25px;color:#64717b}
.recruit_job_cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.recruit_job_card{background:#fff;border:1px solid var(--line);border-top:3px solid var(--blue);padding:23px 25px}
.recruit_job_card h4{font-size:19px;margin:0 0 10px}
.recruit_job_card p{margin:0;color:#58656e}
.recruit_table{background:#fff;border:1px solid var(--line)}
.recruit_row{display:grid;grid-template-columns:200px 1fr;border-bottom:1px solid var(--line)}
.recruit_row:last-child{border:0}
.recruit_th,.recruit_td{padding:15px 19px}
.recruit_th{background:#eaf1f5;font-weight:700}
.recruit_note_box{background:#fff;border:1px solid var(--line);padding:14px 20px;margin-top:20px;color:#58656e;font-size:14px}
.recruit_note_box p{margin:0}
.recruit_cta{margin-top:65px;background:#24313a;color:#fff;padding:44px 28px;text-align:center}
.recruit_cta h3{font-size:25px;margin:8px 0 13px}
.recruit_cta p:not(.recruit_cta_label):not(.recruit_apply_btn){margin:0;color:#ced7dc}
.recruit_apply_btn{margin:24px 0 0}
.recruit_apply_btn a{display:inline-block;background:var(--blue);padding:12px 30px;color:#092534;text-decoration:none;font-weight:700}
@media(max-width:1050px){.site-header .luxbar-brand{font-size:19px}.site-header .luxbar-navigation>li:not(.luxbar-header)>a{font-size:12px;padding:0 7px}}
@media(max-width:767px){
  #business,#works{scroll-margin-top:66px}
  .site-header .luxbar-menu{min-height:58px}
  .site-header .luxbar-header{height:58px}
  .site-header .luxbar-brand{font-size:18px}
  .site-header .luxbar-checkbox:not(:checked)~.luxbar-menu{height:58px}
  .site-header .luxbar-navigation>li:not(.luxbar-header)>a{min-height:50px;padding:10px 24px;font-size:15px;border-top:1px solid #444}
  .hero{min-height:520px}
  .hero>img{object-position:58% center}
  .hero-shade{background:linear-gradient(90deg,#10202bcc,#10202b66)}
  .hero-copy{width:calc(100% - 42px)}
  .hero-copy h1{font-size:34px}
  .hero-copy p:last-child{font-size:13px}
  .section{padding:54px 20px}
  .business-grid,.benefits-grid,.recruit_job_cards{grid-template-columns:1fr}
  .business-grid{gap:18px}
  .works-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .footer-top{display:block}
  .footer-top nav ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;margin:26px 0 0}
  .footer-top nav li{border-top:1px solid #515c62}
  .footer-top nav a{display:block;padding:11px 4px}
  .footer-contact{text-align:left}
  .footer-contact{justify-content:flex-start}
  .footer-contact a{width:100%;text-align:center}
  .contact-options a{width:100%;text-align:center}
  .subpage-hero{padding:53px 20px}
  .subpage-hero h1{font-size:31px}
  .company-page #company dl{grid-template-columns:1fr}
  .company-page #company dt{padding:10px 14px;border-bottom:0}
  .company-page #company dd{padding:13px 14px}
  .pipe-design{margin-top:45px;padding:26px 20px}
  .pipe-design dl{grid-template-columns:1fr 1fr;font-size:13px}
  .office-gallery{margin-top:45px}
  .office-gallery .swiper-slide img{height:300px}
  .benefits-grid{gap:20px}
  #recruit{padding:52px 20px 65px}
  .recruit_intro{grid-template-columns:1fr;gap:25px}
  .recruit_intro h2{font-size:30px}
  .recruit_copy{font-size:21px}
  .recruit_desc br{display:none}
  .recruit_highlights{grid-template-columns:1fr 1fr;gap:12px;margin:26px 0 48px}
  .recruit_highlight_card{padding:17px}
  .recruit_highlight_main{font-size:18px}
  .recruit_row{grid-template-columns:1fr}
  .recruit_th{padding:9px 14px}
  .recruit_td{padding:11px 14px}
  .recruit_cta{padding:33px 21px}
  .recruit_apply_btn a{width:100%}
  .review-banner{margin:18px 20px 0}
}
@media(max-width:390px){.recruit_highlights{grid-template-columns:1fr}}