:root{
  --navy:#0f1a2e; --navy-2:#16233d; --ink:#0b1322; --paper:#f7f4ee; --paper-2:#efe9dd;
  --text:#1d2433; --muted:#5d6577; --vermilion:#c8102e; --gold:#c9a45c; --line:rgba(15,26,46,.12);
  --serif:"Noto Serif JP","Hiragino Mincho ProN","Yu Mincho",serif;
  --sans:"Noto Sans JP","Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
  --max:1120px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--sans);color:var(--text);background:var(--paper);line-height:1.9;letter-spacing:.04em;font-size:16px;overflow-x:hidden}
img,svg{max-width:100%;display:block}
a{color:inherit}
.container{width:min(100% - 48px,var(--max));margin-inline:auto}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;background:#fff;padding:8px;z-index:100}

/* header */
.site-header{position:fixed;inset:0 0 auto 0;z-index:50;transition:background .3s,box-shadow .3s;padding-top:env(safe-area-inset-top)}
.site-header.scrolled,.site-header.solid{background:rgba(11,19,34,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 1px 0 rgba(201,164,92,.25)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:#f4efe6}
.brand img{width:42px;height:42px}
.brand-name{font-family:var(--serif);font-weight:700;font-size:1.1rem;letter-spacing:.12em;line-height:1.2}
.brand-name small{display:block;font-family:var(--sans);font-size:.62rem;font-weight:400;letter-spacing:.3em;color:var(--gold)}
.nav ul{display:flex;gap:32px;list-style:none;margin:0;padding:0}
.nav a{color:#e9e4da;text-decoration:none;font-size:.88rem;letter-spacing:.12em;position:relative;padding:6px 0}
.nav a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--gold);transition:width .3s}
.nav a:hover::after{width:100%}
.nav-toggle{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer;position:relative}
.nav-toggle span{position:absolute;left:10px;right:10px;height:2px;background:#f4efe6;transition:.3s}
.nav-toggle span:nth-child(1){top:15px}.nav-toggle span:nth-child(2){top:21px}.nav-toggle span:nth-child(3){top:27px}
.nav-open .nav-toggle span:nth-child(1){top:21px;transform:rotate(45deg)}
.nav-open .nav-toggle span:nth-child(2){opacity:0}
.nav-open .nav-toggle span:nth-child(3){top:21px;transform:rotate(-45deg)}

/* hero */
.hero{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:center;color:#f4efe6;background:radial-gradient(1200px 600px at 75% 30%,#22345a 0%,transparent 60%),linear-gradient(160deg,#0b1322 0%,#13203a 55%,#0b1322 100%);overflow:hidden}
.hero-art{position:absolute;inset:0;pointer-events:none}
.hero-art svg{width:100%;height:100%}
.hero-content{position:relative;z-index:2;padding:120px 0 96px}
.eyebrow{display:inline-flex;align-items:center;gap:14px;font-size:.78rem;letter-spacing:.35em;color:var(--gold);margin:0 0 28px}
.eyebrow::before{content:"";width:40px;height:1px;background:var(--gold)}
.hero h1{font-family:var(--serif);font-weight:700;font-size:clamp(2.3rem,6.4vw,4.6rem);line-height:1.35;letter-spacing:.08em;margin:0 0 28px}
.hero h1 em{font-style:normal;color:var(--vermilion);text-shadow:0 0 30px rgba(200,16,46,.25)}
.hero-lead{max-width:38em;color:#cfd3dc;font-size:clamp(.95rem,1.6vw,1.05rem);margin:0 0 44px}
.btns{display:flex;flex-wrap:wrap;gap:16px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 32px;text-decoration:none;font-size:.92rem;letter-spacing:.15em;border:1px solid transparent;transition:.3s}
.btn-primary{background:var(--vermilion);color:#fff}
.btn-primary:hover{background:#a50d25}
.btn-ghost{border-color:rgba(244,239,230,.5);color:#f4efe6}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold)}
.scroll-cue{position:absolute;left:50%;bottom:28px;transform:translateX(-50%);z-index:2;font-size:.65rem;letter-spacing:.4em;color:#9aa3b5;display:flex;flex-direction:column;align-items:center;gap:10px}
.scroll-cue::after{content:"";width:1px;height:44px;background:linear-gradient(var(--gold),transparent);animation:cue 2s infinite}
@keyframes cue{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}}
.vertical-text{position:absolute;right:max(24px,calc((100vw - var(--max))/2 - 40px));top:50%;transform:translateY(-50%);writing-mode:vertical-rl;font-family:var(--serif);font-size:1rem;letter-spacing:.6em;color:rgba(201,164,92,.65);z-index:2}

/* sections */
.section{padding:clamp(80px,12vw,140px) 0}
.section-head{margin-bottom:clamp(40px,6vw,72px)}
.section-head .en{font-size:.75rem;letter-spacing:.4em;color:var(--vermilion);font-weight:500;display:flex;align-items:center;gap:12px;margin:0 0 10px}
.section-head .en::before{content:"";width:8px;height:8px;background:var(--vermilion);transform:rotate(45deg)}
.section-head h2{font-family:var(--serif);font-size:clamp(1.7rem,3.6vw,2.5rem);margin:0;letter-spacing:.12em;line-height:1.5}
.dark{background:var(--navy);color:#e9e4da}
.dark .section-head h2{color:#f4efe6}
.dark .section-head .en{color:var(--gold)}.dark .section-head .en::before{background:var(--gold)}

/* philosophy */
.philosophy{position:relative;background:var(--paper)}
.philo-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(40px,7vw,96px);align-items:center}
.philo-quote{font-family:var(--serif);font-size:clamp(1.5rem,3.2vw,2.3rem);line-height:1.8;letter-spacing:.12em;margin:0 0 32px;color:var(--navy)}
.philo-quote span{background:linear-gradient(transparent 70%,rgba(200,16,46,.18) 70%)}
.philo-body p{margin:0 0 1.4em;color:#3a4255}
.values{list-style:none;margin:0;padding:0;display:grid;gap:18px}
.values li{display:grid;grid-template-columns:64px 1fr;gap:20px;align-items:start;padding:24px 26px;background:#fff;border:1px solid var(--line);border-left:3px solid var(--vermilion)}
.values .kanji{font-family:var(--serif);font-size:2.2rem;line-height:1;color:var(--navy);font-weight:700;text-align:center;padding-top:4px}
.values h3{font-family:var(--serif);font-size:1.08rem;margin:0 0 4px;letter-spacing:.1em}
.values p{margin:0;font-size:.9rem;color:var(--muted);line-height:1.8}

/* services */
.services{position:relative;overflow:hidden}
.services::before{content:"事業";position:absolute;right:-20px;top:40px;font-family:var(--serif);font-size:clamp(8rem,18vw,16rem);color:rgba(255,255,255,.03);line-height:1;font-weight:700;pointer-events:none}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;position:relative}
.card{background:var(--navy-2);border:1px solid rgba(201,164,92,.18);padding:40px 32px 36px;position:relative;transition:transform .35s,border-color .35s}
.card:hover{transform:translateY(-4px);border-color:rgba(201,164,92,.5)}
.card .num{position:absolute;top:22px;right:26px;font-family:var(--serif);color:var(--gold);font-size:.85rem;letter-spacing:.2em}
.card .icon{width:64px;height:64px;margin-bottom:26px}
.card h3{font-family:var(--serif);font-size:1.25rem;color:#f4efe6;margin:0 0 6px;letter-spacing:.1em;line-height:1.6}
.card .sub{font-size:.72rem;letter-spacing:.25em;color:var(--gold);margin:0 0 18px}
.card p{font-size:.92rem;color:#b9c0cf;margin:0 0 20px}
.card ul{list-style:none;padding:0;margin:0;border-top:1px solid rgba(255,255,255,.08)}
.card li{font-size:.86rem;color:#d6dae3;padding:10px 0 10px 20px;border-bottom:1px solid rgba(255,255,255,.08);position:relative}
.card li::before{content:"";position:absolute;left:2px;top:50%;width:6px;height:6px;background:var(--vermilion);transform:translateY(-50%) rotate(45deg)}

/* fortress band */
.fortress{background:linear-gradient(120deg,#0b1322,#1a2a48);border-top:1px solid rgba(201,164,92,.25);color:#f4efe6;padding:clamp(72px,10vw,120px) 0;position:relative;overflow:hidden}
.fortress-inner{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(32px,6vw,80px);align-items:center}
.fortress h2{font-family:var(--serif);font-size:clamp(1.6rem,3.4vw,2.4rem);letter-spacing:.12em;line-height:1.6;margin:0 0 20px}
.fortress h2 small{display:block;font-size:.8rem;letter-spacing:.35em;color:var(--gold);font-family:var(--sans);margin-bottom:10px}
.fortress p{color:#c3c9d6;margin:0 0 1em}
.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:28px;padding:0;list-style:none}
.feature-list li{border:1px solid rgba(201,164,92,.3);padding:14px 16px;font-size:.86rem;line-height:1.6;display:flex;gap:10px;align-items:center}
.feature-list li b{font-family:var(--serif);color:var(--gold);font-weight:700}
.bus-art{width:100%;max-width:560px;margin-inline:auto}

/* company */
.company-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line)}
.company-table th,.company-table td{padding:26px 32px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;font-size:.95rem}
.company-table th{width:220px;background:var(--paper-2);font-family:var(--serif);font-weight:600;letter-spacing:.15em;color:var(--navy)}
.company-table td ul{margin:0;padding-left:1.2em}
.company-table a{color:var(--vermilion);word-break:break-all}

/* contact */
.contact{background:var(--paper-2);text-align:center;position:relative}
.contact-box{max-width:760px;margin:0 auto;background:#fff;border:1px solid var(--line);padding:clamp(40px,6vw,64px) clamp(24px,5vw,64px);position:relative}
.contact-box::before,.contact-box::after{content:"";position:absolute;width:28px;height:28px;border:2px solid var(--vermilion)}
.contact-box::before{top:-1px;left:-1px;border-right:0;border-bottom:0}
.contact-box::after{bottom:-1px;right:-1px;border-left:0;border-top:0}
.contact-box h2{font-family:var(--serif);font-size:clamp(1.5rem,3vw,2rem);margin:0 0 14px;letter-spacing:.12em}
.contact-box p{color:var(--muted);margin:0 0 30px}
.mail-link{display:inline-flex;align-items:center;gap:12px;font-size:clamp(.95rem,3.4vw,1.25rem);font-weight:500;color:#fff;background:var(--navy);padding:18px 32px;text-decoration:none;letter-spacing:.05em;transition:.3s;max-width:100%;word-break:break-all}
.mail-link:hover{background:var(--vermilion)}
.mail-link svg{width:22px;height:22px;flex:none}
.note{font-size:.8rem;color:var(--muted);margin-top:22px !important;margin-bottom:0 !important}

/* footer */
.site-footer{background:var(--ink);color:#9aa3b5;padding:56px 0 calc(32px + env(safe-area-inset-bottom));font-size:.85rem}
.footer-inner{display:flex;justify-content:space-between;align-items:flex-start;gap:32px;flex-wrap:wrap}
.footer-links{list-style:none;display:flex;flex-wrap:wrap;gap:12px 28px;margin:0;padding:0}
.footer-links a{text-decoration:none;color:#cfd3dc}
.footer-links a:hover{color:var(--gold)}
.copyright{border-top:1px solid rgba(255,255,255,.08);margin-top:36px;padding-top:24px;font-size:.75rem;letter-spacing:.1em;text-align:center}

/* subpages */
.page-hero{background:linear-gradient(160deg,#0b1322,#16233d);color:#f4efe6;padding:150px 0 70px}
.page-hero h1{font-family:var(--serif);font-size:clamp(1.6rem,4vw,2.4rem);margin:0;letter-spacing:.12em;line-height:1.5}
.page-hero p{color:var(--gold);letter-spacing:.3em;font-size:.75rem;margin:0 0 10px}
.doc{padding:72px 0 110px}
.doc .container{max-width:860px}
.doc h2{font-family:var(--serif);font-size:1.2rem;letter-spacing:.08em;border-left:3px solid var(--vermilion);padding-left:14px;margin:48px 0 14px;line-height:1.6}
.doc p,.doc li{color:#3a4255;font-size:.95rem}
.doc .meta{color:var(--muted);font-size:.85rem;text-align:right;margin-top:48px}
.pending{display:inline-block;font-size:.75rem;letter-spacing:.1em;color:var(--vermilion);border:1px solid var(--vermilion);padding:0 8px;line-height:1.8;margin-right:6px}
.notice{background:#fff;border:1px solid var(--line);border-left:3px solid var(--gold);padding:18px 22px;font-size:.9rem;color:#3a4255}

/* reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .9s ease,transform .9s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}.scroll-cue::after{animation:none}}

/* responsive */
@media (max-width:960px){
  .service-grid{grid-template-columns:1fr;max-width:600px;margin-inline:auto}
  .philo-grid,.fortress-inner{grid-template-columns:1fr}
  .vertical-text{display:none}
}
@media (max-width:820px){
  .nav-toggle{display:block;z-index:60}
  .nav{position:fixed;inset:0;background:rgba(11,19,34,.98);display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:.35s}
  .nav-open .nav{opacity:1;visibility:visible}
  .nav ul{flex-direction:column;gap:28px;text-align:center}
  .nav a{font-family:var(--serif);font-size:1.15rem}
  body.nav-open{overflow:hidden}
}
@media (max-width:600px){
  body{font-size:15px}
  .container{width:calc(100% - 40px)}
  .header-inner{height:64px}
  .brand img{width:36px;height:36px}
  .brand-name{font-size:1rem}
  .hero-content{padding:110px 0 110px}
  .btn{width:100%}
  .values li{grid-template-columns:48px 1fr;gap:14px;padding:20px 18px}
  .values .kanji{font-size:1.8rem}
  .card{padding:34px 24px 28px}
  .feature-list{grid-template-columns:1fr}
  .company-table,.company-table tbody,.company-table tr,.company-table th,.company-table td{display:block;width:100%}
  .company-table th{padding:14px 20px;border-bottom:0}
  .company-table td{padding:16px 20px 22px}
  .mail-link{padding:16px 20px;font-size:.95rem}
  .footer-inner{flex-direction:column}
}
.pc-only{display:inline}@media (max-width:600px){.pc-only{display:none}}

@media (max-width:600px){
  .hero-sun{display:none}
  .hero::before{content:"";position:absolute;width:190px;height:190px;border-radius:50%;right:-50px;top:96px;background:radial-gradient(circle,#e0263f,#a50d25);opacity:.85;outline:1px solid rgba(201,164,92,.35);outline-offset:20px}
  .contact-box{padding:40px 18px}
  .mail-link{font-size:.84rem;padding:16px 14px;gap:8px;white-space:nowrap;letter-spacing:0;width:100%;justify-content:center}
  .mail-link svg{width:18px;height:18px}
}