@charset "UTF-8";
:root{
  --navy:#0f1d33;
  --navy-2:#1a2b47;
  --gold:#b8955a;
  --text:#222;
  --muted:#666;
  --line:#e3e3e3;
  --bg-soft:#f6f5f2;
  --w:1100px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans JP","Hiragino Sans",sans-serif;color:var(--text);line-height:1.9;background:#fff;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:var(--w);margin:0 auto;padding:0 24px}

/* header */
.header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(6px)}
.header__inner{display:flex;align-items:center;justify-content:space-between;height:72px;max-width:1200px;margin:0 auto;padding:0 24px}
.logo{display:flex;align-items:baseline;gap:10px}
.logo__en{font-family:"Montserrat",sans-serif;font-weight:700;font-size:24px;letter-spacing:.08em;color:var(--navy)}
.logo__ja{font-size:12px;color:var(--muted)}
.nav{display:flex;align-items:center;gap:36px}
.nav a{font-size:14px;font-weight:500;letter-spacing:.05em;transition:color .2s}
.nav a:hover{color:var(--gold)}
.nav .btn-contact{background:var(--navy);color:#fff;padding:10px 22px;border-radius:2px}
.nav .btn-contact:hover{background:var(--gold);color:#fff}
.menu-btn{display:none;background:none;border:0;width:40px;height:40px;cursor:pointer;position:relative}
.menu-btn span{position:absolute;left:8px;right:8px;height:2px;background:var(--navy);transition:.3s}
.menu-btn span:nth-child(1){top:13px}.menu-btn span:nth-child(2){top:19px}.menu-btn span:nth-child(3){top:25px}
.menu-open .menu-btn span:nth-child(1){top:19px;transform:rotate(45deg)}
.menu-open .menu-btn span:nth-child(2){opacity:0}
.menu-open .menu-btn span:nth-child(3){top:19px;transform:rotate(-45deg)}

/* hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;color:#fff;overflow:hidden;
  background:radial-gradient(ellipse at 80% 20%,rgba(184,149,90,.18),transparent 55%),linear-gradient(120deg,#0b1628,#1a2b47)}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:60px 60px;pointer-events:none}
.hero__inner{position:relative;z-index:1;padding-top:72px}
.hero__label{font-family:"Montserrat",sans-serif;font-size:13px;letter-spacing:.3em;color:var(--gold);margin-bottom:24px}
.hero__title{font-size:clamp(34px,5.4vw,64px);font-weight:700;line-height:1.4;letter-spacing:.04em}
.hero__en{font-family:"Montserrat",sans-serif;font-size:14px;letter-spacing:.15em;opacity:.7;margin:20px 0 32px}
.hero__lead{font-size:16px;opacity:.9;max-width:560px}
.hero__btns{display:flex;flex-wrap:wrap;gap:16px;margin-top:44px}
.btn{display:inline-block;padding:16px 36px;font-size:14px;font-weight:500;letter-spacing:.08em;border:1px solid transparent;transition:.25s}
.btn--white{background:#fff;color:var(--navy)}
.btn--white:hover{background:var(--gold);color:#fff}
.btn--line{border-color:rgba(255,255,255,.6);color:#fff}
.btn--line:hover{background:#fff;color:var(--navy)}
.btn--navy{background:var(--navy);color:#fff}
.btn--navy:hover{background:var(--gold)}
.scroll{position:absolute;right:40px;bottom:0;z-index:1;font-family:"Montserrat",sans-serif;font-size:11px;letter-spacing:.3em;writing-mode:vertical-rl;padding-bottom:90px;opacity:.7}
.scroll::after{content:"";position:absolute;left:50%;bottom:0;width:1px;height:80px;background:#fff;animation:scroll 2s infinite}
@keyframes scroll{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* section */
.section{padding:120px 0}
.section--soft{background:var(--bg-soft)}
.section--navy{background:var(--navy);color:#fff}
.sec-head{margin-bottom:56px}
.sec-head__en{font-family:"Montserrat",sans-serif;font-size:13px;letter-spacing:.3em;color:var(--gold);display:block;margin-bottom:8px}
.sec-head__ja{font-size:32px;font-weight:700;letter-spacing:.06em}
.sec-head__lead{margin-top:20px;color:var(--muted)}
.section--navy .sec-head__lead{color:rgba(255,255,255,.75)}
.text-link{display:inline-flex;align-items:center;gap:10px;font-weight:500;margin-top:32px;border-bottom:1px solid currentColor;padding-bottom:4px;transition:color .2s}
.text-link:hover{color:var(--gold)}

/* news */
.news-list{border-top:1px solid var(--line)}
.news-item{display:grid;grid-template-columns:120px 120px 1fr;align-items:center;gap:16px;padding:24px 8px;border-bottom:1px solid var(--line)}
.news-item time{font-family:"Montserrat",sans-serif;color:var(--muted);font-size:14px}
.news-cat{font-size:12px;border:1px solid var(--navy);text-align:center;padding:2px 8px;width:fit-content}

/* about */
.about{display:grid;grid-template-columns:1fr 1.3fr;gap:80px;align-items:start}
.about__lead{font-size:22px;font-weight:700;line-height:1.8}

/* services */
.services{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.service{background:#fff;padding:44px 40px;border-top:3px solid var(--navy);transition:.3s}
.service:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(15,29,51,.08);border-top-color:var(--gold)}
.service__num{font-family:"Montserrat",sans-serif;font-size:40px;font-weight:300;color:var(--gold);line-height:1}
.service__title{font-size:20px;font-weight:700;margin:16px 0 12px}
.service__text{color:var(--muted);font-size:15px}
.service .text-link{margin-top:20px;font-size:14px}

/* strengths */
.strengths{display:grid;grid-template-columns:repeat(3,1fr);gap:48px}
.strength__num{font-family:"Montserrat",sans-serif;font-size:14px;color:var(--gold);letter-spacing:.2em}
.strength__title{font-size:20px;font-weight:700;margin:12px 0 16px;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.2)}
.strength__text{font-size:15px;color:rgba(255,255,255,.8)}

/* table */
.info-table{width:100%;border-collapse:collapse;border-top:1px solid var(--line)}
.info-table th,.info-table td{padding:24px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.info-table th{width:200px;font-weight:500;color:var(--navy);background:var(--bg-soft)}

/* contact cta */
.cta{text-align:center}
.cta h2{font-size:28px;margin-bottom:16px}
.cta p{color:var(--muted);margin-bottom:40px}

/* page header */
.page-head{padding:172px 0 88px;background:linear-gradient(120deg,var(--navy),var(--navy-2));color:#fff}
.page-head__en{font-family:"Montserrat",sans-serif;font-size:13px;letter-spacing:.3em;color:var(--gold)}
.page-head h1{font-size:36px;letter-spacing:.08em;margin-top:8px}
.breadcrumb{font-size:12px;opacity:.7;margin-top:16px}

/* service detail */
.svc-detail{display:grid;grid-template-columns:200px 1fr;gap:56px;padding:64px 0;border-bottom:1px solid var(--line);scroll-margin-top:96px}
.svc-detail:last-child{border-bottom:0}
.svc-detail__num{font-family:"Montserrat",sans-serif;font-size:64px;font-weight:300;color:var(--gold);line-height:1}
.svc-detail h2{font-size:26px;margin-bottom:20px}
.svc-detail ul{margin-top:20px;padding-left:1.2em}
.svc-detail li{margin-bottom:6px}

/* message */
.message{max-width:780px}
.message p+p{margin-top:1.4em}
.message__sign{text-align:right;margin-top:40px;font-weight:500}
.vision{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.vision__item{background:#fff;padding:36px 32px}
.vision__item h3{font-size:14px;color:var(--gold);font-family:"Montserrat",sans-serif;letter-spacing:.2em;margin-bottom:8px}
.vision__item p{font-weight:700;font-size:18px}
.vision__item small{display:block;margin-top:12px;color:var(--muted);font-size:14px;font-weight:400;line-height:1.8}
.history{border-left:2px solid var(--navy);padding-left:32px}
.history li{list-style:none;position:relative;padding-bottom:28px}
.history li::before{content:"";position:absolute;left:-39px;top:9px;width:12px;height:12px;border-radius:50%;background:var(--gold)}
.history time{font-family:"Montserrat",sans-serif;font-weight:600;color:var(--navy);display:block}

/* form */
.form{max-width:760px;margin:0 auto}
.form__row{display:grid;grid-template-columns:220px 1fr;gap:24px;padding:24px 0;border-bottom:1px solid var(--line)}
.form__row label{font-weight:500;padding-top:10px}
.req{display:inline-block;background:var(--gold);color:#fff;font-size:11px;padding:1px 8px;margin-left:8px;vertical-align:middle}
.form input[type=text],.form input[type=email],.form input[type=tel],.form select,.form textarea{width:100%;padding:12px 14px;border:1px solid #ccc;font:inherit;font-size:16px;background:#fff;border-radius:2px}
.form textarea{min-height:200px;resize:vertical}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--gold);border-color:transparent}
.form__agree{text-align:center;margin:40px 0 24px}
.form__agree a{text-decoration:underline}
.form__submit{text-align:center}
.form__submit button{border:0;cursor:pointer;font:inherit;min-width:280px}
.hp{position:absolute;left:-9999px}
.notice{max-width:760px;margin:0 auto 40px;padding:24px;background:var(--bg-soft);text-align:center}

/* legal text */
.legal{max-width:860px}
.legal h2{font-size:20px;margin:48px 0 12px;padding-left:14px;border-left:4px solid var(--gold)}
.legal ul{padding-left:1.4em}

/* footer */
.footer{background:var(--navy);color:rgba(255,255,255,.8);padding:80px 0 32px;font-size:14px}
.footer__top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer .logo__en{color:#fff}
.footer__desc{margin-top:16px;font-size:13px;line-height:1.9}
.footer h4{font-family:"Montserrat",sans-serif;color:var(--gold);font-size:12px;letter-spacing:.2em;margin-bottom:16px}
.footer li{list-style:none;margin-bottom:8px}
.footer a:hover{color:#fff}
.footer__bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;margin-top:64px;padding-top:24px;border-top:1px solid rgba(255,255,255,.15);font-size:12px}
.footer__bottom nav{display:flex;gap:24px}

/* fade */
.fade{opacity:0;transform:translateY(24px);transition:opacity .8s,transform .8s}
.fade.is-show{opacity:1;transform:none}

/* responsive */
@media (max-width:900px){
  .menu-btn{display:block}
  .nav{position:fixed;top:72px;left:0;right:0;flex-direction:column;gap:0;background:#fff;border-bottom:1px solid var(--line);display:none}
  .menu-open .nav{display:flex}
  .nav a{width:100%;padding:18px 24px;border-top:1px solid var(--line)}
  .nav .btn-contact{border-radius:0;text-align:center}
  .about,.svc-detail{grid-template-columns:1fr;gap:24px}
  .services,.strengths,.vision{grid-template-columns:1fr}
  .footer__top{grid-template-columns:1fr 1fr}
}
@media (max-width:600px){
  .container{padding:0 16px}
  .section{padding:80px 0}
  .sec-head__ja{font-size:26px}
  .service{padding:32px 24px}
  .news-item{grid-template-columns:auto 1fr;gap:8px 16px}
  .news-item p{grid-column:1/-1}
  .info-table th,.info-table td{display:block;width:100%}
  .info-table th{padding:12px 16px}
  .form__row{grid-template-columns:1fr;gap:8px}
  .scroll{display:none}
  .footer__top{grid-template-columns:1fr}
  .btn{width:100%;text-align:center}
}