@charset "UTF-8";
:root{--blue:#0756b9;--blue2:#0b66d8;--navy:#102b50;--ink:#18324f;--muted:#63758c;--line:#d8e6f5;--pale:#f4f8fd;--white:#fff}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);font-family:system-ui,-apple-system,"Segoe UI","Noto Sans JP",Meiryo,sans-serif;line-height:1.7}
button,a{font:inherit}
button{cursor:pointer}
.site-header{height:82px;display:flex;align-items:center;gap:28px;padding:0 clamp(20px,3.5vw,56px);border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:20}
.brand{display:flex;align-items:center;gap:12px;min-width:280px;color:var(--blue);text-decoration:none}
.brand-mark{width:39px;height:39px;display:grid;place-items:center;color:#fff;background:linear-gradient(145deg,#0a70e2,#083f8e);clip-path:polygon(48% 0,100% 0,55% 45%,79% 45%,25% 100%,0 100%,43% 54%,20% 54%);font-size:0}
.brand-name{font-size:27px;font-weight:800;letter-spacing:-.7px;line-height:1.1}
.brand-tag{font-size:12px;letter-spacing:.2px;color:#4c6b8f;margin-top:4px}
.header-nav{display:flex;align-items:stretch;justify-content:flex-end;gap:clamp(14px,2.1vw,34px);margin-left:auto;height:100%}
.nav-button{position:relative;border:0;background:transparent;color:#173354;font-weight:650;font-size:13px;letter-spacing:.8px;padding:0 4px}
.nav-button::after{content:"";position:absolute;bottom:0;left:0;right:0;height:3px;background:var(--blue);transform:scaleX(0);transform-origin:center;transition:transform .22s}
.nav-button:hover,.nav-button[aria-current="page"]{color:var(--blue)}
.nav-button[aria-current="page"]::after{transform:scaleX(1)}
.contact-button{border:0;border-radius:999px;background:var(--blue);color:white;padding:12px 22px;font-size:13px;font-weight:700;white-space:nowrap;box-shadow:0 5px 14px #0756b923;transition:background .2s,transform .2s}
.contact-button:hover{background:#064794;transform:translateY(-1px)}
.mobile-menu{display:none;margin-left:auto;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--blue);font-size:22px;width:42px;height:42px}
.layout{display:grid;grid-template-columns:minmax(290px,29.2%) minmax(0,1fr);min-height:calc(100vh - 82px)}
.brand-panel{position:sticky;top:82px;height:calc(100vh - 82px);min-height:600px;overflow:hidden;background:linear-gradient(180deg,#d9edff 0%,#f6fbff 66%,#fff 100%);border-right:1px solid var(--line);display:flex;flex-direction:column;justify-content:center;padding:clamp(28px,4.5vw,70px) clamp(24px,4.5vw,70px)}
.brand-panel::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.2)),url("https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?auto=format&fit=crop&w=1000&q=85") center/cover;opacity:.2;mix-blend-mode:multiply}
.brand-panel::after{content:"";position:absolute;inset:45% 0 0;background:linear-gradient(180deg,transparent,rgba(255,255,255,.96))}
.panel-content,.panel-bottom{position:relative;z-index:1}
.eyebrow{color:var(--blue);font-size:13px;font-weight:750;letter-spacing:2px;text-transform:uppercase}
.brand-panel h1{font-size:clamp(27px,2.45vw,40px);line-height:1.5;letter-spacing:.02em;color:#0752a8;margin:16px 0 20px}
.brand-panel p{font-size:15px;line-height:2;color:#234567;margin:0;max-width:330px}
.short-rule{width:58px;height:4px;background:var(--blue);border-radius:4px;margin-top:30px}
.panel-bottom{margin-top:auto;padding-top:55px}
.panel-logo{font-size:25px;font-weight:800;letter-spacing:-.5px;color:var(--blue);display:flex;align-items:center;gap:10px}
.panel-logo .brand-mark{width:31px;height:31px}
.panel-bottom small{display:block;color:#52749b;font-size:10px;margin:2px 0 0 42px}
.main{min-width:0;padding:clamp(28px,3.2vw,52px) clamp(24px,3.2vw,52px) 34px;display:flex;flex-direction:column}
.page{display:none;animation:pageIn .32s ease both}
.page.is-active{display:block}
@keyframes pageIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.page-top{display:grid;grid-template-columns:minmax(250px,.85fr) minmax(300px,1.15fr);gap:clamp(22px,3vw,44px);align-items:center;margin-bottom:38px}
.page-kicker{font-size:13px;color:var(--blue);font-weight:750;letter-spacing:1.6px;margin:0 0 8px}
h2{font-size:clamp(27px,2.5vw,39px);line-height:1.4;color:var(--navy);letter-spacing:.01em;margin:0 0 16px}
.lead{font-size:14px;color:#51657d;line-height:2;margin:0}
.hero-image{height:clamp(210px,23vw,310px);border-radius:3px;overflow:hidden;position:relative;background:#dcecff}
.hero-image img{width:100%;height:100%;object-fit:cover;display:block}
.hero-image::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(3,34,67,.02),rgba(3,34,67,.25))}
.hero-caption{position:absolute;z-index:1;right:7%;top:30%;color:white;font-weight:750;font-size:clamp(18px,1.6vw,25px);line-height:1.55;text-shadow:0 2px 12px #092d52aa}
.section-heading{display:flex;align-items:center;gap:16px;font-size:17px;color:var(--navy);margin:0 0 15px;font-weight:750}
.section-heading::after{content:"";height:2px;width:34px;background:#8dbcf2}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.card{border:1px solid var(--line);border-radius:3px;padding:22px 21px 20px;min-height:172px;background:#fff;transition:border-color .2s,box-shadow .2s,transform .2s}
.card:hover{border-color:#8cb9ed;box-shadow:0 8px 24px #174c8010;transform:translateY(-2px)}
.card-icon{width:31px;height:31px;color:var(--blue);margin-bottom:10px}
.card h3{font-size:15px;margin:0 0 9px;color:var(--navy)}
.card p{font-size:14px;line-height:1.9;color:#5a6c81;margin:0}
.news{margin-bottom:34px}
.news-head{display:flex;justify-content:space-between;align-items:center}
.text-link{border:0;background:transparent;color:var(--blue);font-size:12px;font-weight:700;padding:8px 0}
.text-link:hover{text-decoration:underline}
.news-list{border-top:1px solid var(--line)}
.news-item{display:grid;grid-template-columns:86px 105px minmax(0,1fr);gap:14px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}
.news-date{color:#52677e;font-variant-numeric:tabular-nums}
.tag{display:inline-block;width:max-content;border-radius:3px;background:#e5f1ff;color:#0756b9;padding:3px 9px;font-weight:700;font-size:11px}
.news-item a{color:#27415f;text-decoration:none}
.news-item a:hover{color:var(--blue)}
.site-footer{border-top:1px solid var(--line);padding:19px clamp(20px,3.5vw,56px);display:flex;justify-content:space-between;gap:20px;color:#64809f;font-size:11px;background:#fff}
.footer-links{display:flex;gap:24px}
.footer-links a{color:inherit;text-decoration:none}
.footer-links a:hover{color:var(--blue)}
/* inner pages */
.inner-intro{padding:5px 0 30px;border-bottom:1px solid var(--line);margin-bottom:28px}
.inner-intro h2{max-width:800px}
.inner-intro .lead{/*max-width:760px*/}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin:26px 0 35px}
.stat{padding:23px;border:1px solid var(--line);background:var(--pale)}
.stat strong{display:block;color:var(--blue);font-size:29px;line-height:1.2}
.stat span{font-size:12px;color:var(--muted)}
.service-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.service-card{border:1px solid var(--line);padding:23px;display:flex;gap:17px}
.service-num{color:var(--blue);font-weight:800;font-size:16px;letter-spacing:1px}
.service-card h3{margin:0 0 8px;color:var(--navy);font-size:16px}
.service-card p{margin:0;font-size:14px;color:var(--muted);line-height:1.9}
.works-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.work-card{border:1px solid var(--line);overflow:hidden}
.work-card img{width:100%;height:190px;object-fit:cover;display:block}
.work-card div{padding:18px}
.work-card span{font-size:14px;color:var(--blue);font-weight:700}
.work-card h3{font-size:16px;color:var(--navy);margin:5px 0}
.work-card p{font-size:14px;color:var(--muted);margin:0}
.company-table{width:100%;border-collapse:collapse;font-size:14px}
.company-table th,.company-table td{text-align:left;padding:17px 18px;border-bottom:1px solid var(--line);vertical-align:top}
.company-table th{width:180px;color:var(--navy);background:var(--pale);font-weight:700}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.contact-box{border:1px solid var(--line);padding:25px;background:#fff}
.contact-box h3{margin:0 0 12px;color:var(--navy)}
.contact-box p{font-size:14px;color:var(--muted);line-height:1.9}
.form{display:grid;gap:15px}
.form label{display:grid;gap:6px;font-size:12px;font-weight:700;color:var(--navy)}
.form input,.form select,.form textarea{width:100%;border:1px solid #c9d9ea;border-radius:3px;padding:11px 12px;color:var(--ink);background:#fff;font:inherit;font-size:14px}
.form textarea{min-height:120px;resize:vertical}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid #9fc8f7;border-color:var(--blue)}
.form button{justify-self:start;border:0;border-radius:3px;background:var(--blue);color:#fff;padding:12px 25px;font-weight:700}
.form-note{font-size:11px;color:var(--muted);margin:0}
.mobile-nav{display:none}
@media(max-width:1050px){.brand{min-width:220px}.brand-tag{display:none}.layout{grid-template-columns:270px minmax(0,1fr)}.brand-panel{padding:30px}.main{padding:30px}.page-top{grid-template-columns:1fr}.hero-image{height:240px}.cards{grid-template-columns:1fr}.card{min-height:0}.news{margin-top:28px}}
@media(max-width:980px){.site-header{height:70px;padding:0 18px;gap:12px}.brand{min-width:0}.brand-mark{width:32px;height:32px}.brand-name{font-size:23px}.header-nav,.header-contact{display:none}.mobile-menu{display:block}.mobile-nav{position:absolute;top:69px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:10px 18px 16px;box-shadow:0 12px 20px #102b5010}.mobile-nav.is-open{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}.mobile-nav .nav-button{padding:11px 5px;border:1px solid var(--line);border-radius:3px}.mobile-nav .nav-button::after{display:none}.mobile-nav .nav-button[aria-current="page"]{background:#edf5ff;border-color:#8cb9ed}.layout{display:block;min-height:0}.brand-panel{position:relative;top:auto;height:auto;min-height:0;padding:27px 23px 25px;border-right:0;border-bottom:1px solid var(--line)}.brand-panel::before{background-position:center 42%}.brand-panel h1{font-size:27px;margin:8px 0 10px}.brand-panel p{font-size:13px;max-width:520px}.short-rule{margin-top:17px}.panel-bottom{display:none}.main{padding:28px 20px 32px}.page-top{gap:20px;margin-bottom:28px}.page-top h2{font-size:28px}.hero-image{height:210px}.cards{grid-template-columns:1fr}.news-item{grid-template-columns:80px 88px minmax(0,1fr);gap:8px;font-size:11px}.site-footer{padding:17px 20px;display:grid;gap:10px}.footer-links{gap:15px;flex-wrap:wrap}.service-list,.works-grid,.contact-grid{grid-template-columns:1fr}.stat-row{gap:8px}.stat{padding:15px 12px}.stat strong{font-size:23px}.stat span{font-size:10px}.company-table th,.company-table td{padding:13px 10px;font-size:12px}.company-table th{width:100px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}

/* Alternative layout: full-width banner above the content workspace */
.top-banner{height:clamp(245px,31vw,390px);position:relative;overflow:hidden;background:#123d70;color:#fff}
.top-banner>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 48%}
.top-banner-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,35,73,.86) 0%,rgba(5,47,91,.66) 48%,rgba(5,47,91,.12) 100%)}
.top-banner-content{position:relative;z-index:1;height:100%;display:flex;flex-direction:column;justify-content:center;padding:30px clamp(28px,8vw,120px);max-width:1100px}
.top-banner-content p{font-size:11px;letter-spacing:2.6px;font-weight:800;color:#b9dcff;margin:0 0 10px}
.top-banner-content h1{font-size:clamp(28px,3.4vw,48px);line-height:1.45;letter-spacing:.02em;color:#fff;margin:0 0 12px}
.top-banner-content span{font-size:14px;color:#eef6ff}
.top-banner-mark{position:absolute;right:clamp(20px,4vw,56px);bottom:20px;z-index:1;font-size:11px;letter-spacing:.5px;color:#e6f2ff}
.top-banner-mark i{font-style:normal;color:#8dc2ff;margin:0 5px}
.home-page-top{grid-template-columns:minmax(0,1fr);margin-bottom:30px}
.home-page-top>div:first-child{max-width:780px}
.home-page-top h2{font-size:clamp(26px,2.4vw,36px)}
@media(max-width:980px){
  .top-banner{height:270px}
  .top-banner-content{padding:25px 22px}
  .top-banner-content h1{font-size:29px}
  .top-banner-content span{font-size:12px;max-width:310px}
  .top-banner-mark{font-size:9px;bottom:12px;right:16px}
}


/* Single-column vertical scrolling layout */
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{background:#fff}
.layout{display:block;min-height:0}
.brand-panel{display:none}
.single-page-main{width:min(1180px,100%);margin:0 auto;padding:clamp(34px,5vw,72px) clamp(20px,4vw,48px) 70px}
.scroll-section{display:block;padding:0 0 clamp(55px,7vw,100px);margin:0 0 clamp(48px,6vw,82px);border-bottom:1px solid var(--line);scroll-margin-top:100px}
.scroll-section:last-child{border-bottom:0;margin-bottom:0}
.scroll-section .inner-intro{padding:0 0 26px;margin-bottom:28px}
.home-intro{max-width:850px;margin:0 0 38px}
.home-intro h2{font-size:clamp(30px,3.5vw,46px)}
.home-intro .lead{max-width:800px}
.scroll-section .cards{grid-template-columns:repeat(3,minmax(0,1fr))}
.scroll-section .service-list{grid-template-columns:repeat(2,minmax(0,1fr))}
.top-banner{height:clamp(270px,34vw,440px)}
.site-footer{padding-left:max(20px,calc((100vw - 1180px)/2));padding-right:max(20px,calc((100vw - 1180px)/2))}
.header-nav .nav-button[aria-current="page"]::after{transform:scaleX(1)}
@media(max-width:980px){
 html{scroll-padding-top:72px}
 .single-page-main{padding:32px 20px 45px}
 .scroll-section{padding-bottom:48px;margin-bottom:45px;scroll-margin-top:82px}
 .scroll-section .cards,.scroll-section .service-list,.scroll-section .works-grid,.scroll-section .contact-grid{grid-template-columns:1fr}
 .home-intro h2{font-size:29px}
 .top-banner{height:260px}
 .site-header{position:sticky}
}


.contact-phone-fax{grid-template-columns:repeat(2,minmax(0,1fr));max-width:850px}
.contact-phone-fax .contact-box{padding:30px}
.contact-phone-fax h3{margin-bottom:12px}
.contact-number{display:block;font-size:clamp(25px,3vw,36px);font-weight:800;letter-spacing:.02em;color:var(--blue);text-decoration:none;margin:8px 0 12px}
a.contact-number:hover{text-decoration:underline}
.contact-address{display:flex;flex-direction:column;gap:5px;margin-top:20px;padding:20px 24px;background:var(--pale);border-left:3px solid var(--blue);font-size:13px}
@media(max-width:980px){.contact-phone-fax{grid-template-columns:1fr}.contact-phone-fax .contact-box{padding:22px}}

/* グローバルナビ：button / a の表示差を統一 */
a.nav-button {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  white-space: nowrap;
  line-height: normal;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}

/* お問い合わせリンクのボタン風デザイン */
a.contact-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  cursor: pointer;
}

/* モバイルナビ */
.mobile-nav a.nav-button {
  min-width: 0;
}

/* キーボード操作時のフォーカス */
a.nav-button:focus-visible,
a.contact-button:focus-visible {
  outline: 2px solid var(--blue2);
  outline-offset: 4px;
}