:root{
  --night:#101A26;--steel:#16222F;--steel-2:#1C2C3D;
  --line:rgba(160,178,196,.18);--amber:#E8A33D;--white:#F1F2F0;--dim:#9CA9B6;
  --disp:"Zen Kaku Gothic Antique","Hiragino Kaku Gothic ProN",sans-serif;
  --body:"Zen Kaku Gothic New","Hiragino Kaku Gothic ProN",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}
body{background:var(--steel);color:var(--white);font-family:var(--body);line-height:1.9;
  font-feature-settings:"palt";-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
a:focus-visible{outline:2px solid var(--amber);outline-offset:3px}
img{max-width:100%;display:block}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}

/* header */
header{position:fixed;inset:0 0 auto 0;z-index:50;
  background:linear-gradient(to bottom,rgba(16,26,38,.95),rgba(16,26,38,.82) 70%,rgba(16,26,38,.6));
  backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{font-family:var(--disp);font-weight:900;letter-spacing:.1em;font-size:1rem;display:flex;align-items:center;gap:12px}
.brand .bolt{width:32px;height:32px;border:2px solid var(--amber);display:grid;place-items:center;color:var(--amber);font-size:.85rem;font-weight:700}
nav ul{display:flex;gap:26px;list-style:none;font-size:.8rem;letter-spacing:.14em;font-weight:500}
nav a{opacity:.85;transition:opacity .2s,color .2s;padding:6px 0}
nav a:hover,nav a:focus-visible,nav a[aria-current="page"]{opacity:1;color:var(--amber)}
nav .cta{border:1px solid var(--amber);color:var(--amber);padding:8px 18px}
nav .cta:hover{background:var(--amber);color:var(--night)}
@media(max-width:760px){nav ul{gap:12px;font-size:.68rem}.brand{font-size:.85rem}nav .cta{padding:6px 10px}}

/* hero (top) */
.hero{min-height:92svh;display:flex;align-items:center;position:relative;overflow:hidden;
  background:radial-gradient(1000px 500px at 90% 110%,rgba(232,163,61,.12),transparent 60%),
  linear-gradient(150deg,var(--night) 0%,var(--steel) 60%,#1A2C3E 100%)}
.hero::before{content:"";position:absolute;left:0;right:0;top:62%;height:1px;background:var(--line)}
.hero::after{content:"";position:absolute;left:14%;top:62%;width:9px;height:9px;border-radius:50%;
  background:var(--amber);transform:translateY(-4px);box-shadow:0 0 18px rgba(232,163,61,.8)}
.hero .wrap{position:relative;padding-top:72px}
.kicker{font-size:.78rem;letter-spacing:.4em;color:var(--amber);font-weight:700;margin-bottom:26px;display:flex;align-items:center;gap:14px}
.kicker::before{content:"";width:40px;height:2px;background:var(--amber)}
.hero h1{font-family:var(--disp);font-weight:900;font-size:clamp(2.1rem,5.6vw,3.9rem);letter-spacing:.06em;line-height:1.55}
.hero .accent{color:var(--amber)}
.hero p.lead{margin-top:26px;font-size:.95rem;letter-spacing:.1em;color:var(--dim);max-width:560px}
.fade{opacity:0;transform:translateY(14px);animation:rise .9s ease forwards}
.fade.d1{animation-delay:.15s}.fade.d2{animation-delay:.3s}
@keyframes rise{to{opacity:1;transform:none}}

/* page hero (下層) */
.page-hero{padding:150px 0 64px;background:linear-gradient(150deg,var(--night),var(--steel));border-bottom:1px solid var(--line)}
.page-hero .en{font-size:.74rem;letter-spacing:.4em;color:var(--amber);font-weight:700;margin-bottom:12px}
.page-hero h1{font-family:var(--disp);font-weight:900;font-size:clamp(1.7rem,4vw,2.6rem);letter-spacing:.08em}

/* sections */
section{padding:96px 0}
.eyebrow{font-size:.78rem;letter-spacing:.34em;color:var(--amber);font-weight:700;display:flex;align-items:center;gap:14px;margin-bottom:20px}
.eyebrow::after{content:"";flex:0 0 52px;height:2px;background:var(--amber);opacity:.7}
h2{font-family:var(--disp);font-size:clamp(1.4rem,3.2vw,2.1rem);font-weight:900;letter-spacing:.06em;line-height:1.7;margin-bottom:34px}
.alt{background:var(--night)}

/* strengths */
.str-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.str-card{border:1px solid var(--line);padding:38px 30px;background:var(--steel-2)}
.str-card .num{font-family:var(--disp);font-weight:900;font-size:2rem;color:transparent;-webkit-text-stroke:1px rgba(232,163,61,.55);line-height:1;margin-bottom:16px}
.str-card h3{font-family:var(--disp);font-size:1.05rem;font-weight:700;letter-spacing:.08em;margin-bottom:12px}
.str-card p{font-size:.86rem;color:var(--dim);line-height:2}
@media(max-width:760px){.str-grid{grid-template-columns:1fr}}

/* service cards */
.svc-grid{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--line)}
.svc-card{background:var(--steel-2);padding:44px 38px;transition:background .25s;display:block}
.svc-card:hover{background:#213448}
.svc-card .no{font-family:var(--disp);font-weight:900;font-size:2.6rem;color:transparent;-webkit-text-stroke:1px rgba(232,163,61,.55);line-height:1;margin-bottom:18px}
.svc-card h3{font-family:var(--disp);font-size:1.15rem;font-weight:700;letter-spacing:.1em;margin-bottom:6px}
.svc-card .sub{font-size:.76rem;color:var(--amber);letter-spacing:.08em;margin-bottom:16px;display:block}
.svc-card p{font-size:.88rem;color:var(--dim);line-height:2}
@media(max-width:760px){.svc-grid{grid-template-columns:1fr}}
.more{display:inline-block;margin-top:36px;font-size:.84rem;letter-spacing:.14em;font-weight:700;color:var(--amber);border-bottom:1px solid var(--amber);padding-bottom:4px}
.more::after{content:" →"}

/* flow */
.flow{counter-reset:step;max-width:760px}
.flow li{list-style:none;counter-increment:step;display:grid;grid-template-columns:64px 1fr;gap:22px;padding:26px 0;border-bottom:1px solid var(--line)}
.flow li::before{content:"0" counter(step);font-family:var(--disp);font-weight:900;font-size:1.5rem;color:var(--amber)}
.flow h3{font-family:var(--disp);font-size:1.02rem;font-weight:700;letter-spacing:.08em;margin-bottom:6px}
.flow p{font-size:.87rem;color:var(--dim)}

/* news */
.news li{list-style:none;display:grid;grid-template-columns:130px 1fr;gap:24px;padding:20px 4px;border-bottom:1px solid var(--line);font-size:.9rem}
.news time{color:var(--amber);letter-spacing:.08em}
.news p{color:var(--dim)}
@media(max-width:640px){.news li{grid-template-columns:1fr;gap:4px}}

/* message */
.msg-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.msg-grid p{color:var(--dim);font-size:.95rem;margin-bottom:1.4em}
.msg-grid .sign{color:var(--white);font-family:var(--disp);font-weight:700;letter-spacing:.14em;margin-top:28px}
.msg-grid .sign small{display:block;font-family:var(--body);font-weight:400;font-size:.78rem;color:var(--dim);letter-spacing:.1em;margin-bottom:4px}
@media(max-width:820px){.msg-grid{grid-template-columns:1fr;gap:16px}}

/* company table */
.co-table{border-top:2px solid var(--amber);max-width:860px}
.co-row{display:grid;grid-template-columns:180px 1fr;gap:24px;padding:26px 8px;border-bottom:1px solid var(--line)}
.co-row dt{font-size:.9rem;letter-spacing:.2em;color:var(--amber);font-weight:700}
.co-row dd{font-size:.93rem;line-height:2}
.co-row dd ul{list-style:none}
.co-row dd ul li{padding-left:1.2em;text-indent:-1.2em;color:var(--dim)}
.co-row dd ul li::before{content:"─ ";color:var(--amber)}
.co-row dd a{border-bottom:1px solid var(--line);transition:color .2s}
.co-row dd a:hover{color:var(--amber)}
@media(max-width:640px){.co-row{grid-template-columns:1fr;gap:6px;padding:20px 4px}}
.map{margin-top:56px;border:1px solid var(--line)}
.map iframe{width:100%;height:400px;border:0;display:block;filter:grayscale(.2)}

/* form */
.form{max-width:720px}
.form .row{margin-bottom:26px}
.form label{display:block;font-size:.84rem;font-weight:700;letter-spacing:.12em;margin-bottom:10px}
.form label .req{color:var(--amber);font-size:.7rem;margin-left:8px;border:1px solid var(--amber);padding:1px 6px}
.form input[type=text],.form input[type=email],.form input[type=tel],.form select,.form textarea{
  width:100%;background:var(--steel-2);border:1px solid var(--line);color:var(--white);
  font-family:var(--body);font-size:.95rem;padding:14px 16px;border-radius:0;transition:border-color .2s}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--amber)}
.form textarea{min-height:190px;resize:vertical}
.form .consent{font-size:.85rem;color:var(--dim);display:flex;gap:10px;align-items:flex-start}
.form .consent a{color:var(--amber);border-bottom:1px solid var(--amber)}
.form button{margin-top:34px;font-family:var(--disp);font-weight:700;font-size:.95rem;letter-spacing:.16em;
  background:var(--amber);color:var(--night);border:0;padding:17px 64px;cursor:pointer;transition:opacity .25s}
.form button:hover{opacity:.85}
.form .note{font-size:.8rem;color:var(--dim);margin-bottom:36px}

/* privacy */
.legal{max-width:800px}
.legal h2{font-size:1.1rem;margin:44px 0 14px;border-left:3px solid var(--amber);padding-left:14px}
.legal p,.legal li{font-size:.9rem;color:var(--dim);line-height:2.05}
.legal ul{padding-left:1.4em;margin:10px 0}
.legal .date{margin-top:44px;color:var(--dim);font-size:.85rem;text-align:right}

/* cta band */
.cta-band{background:var(--night);border-top:1px solid var(--line);text-align:center;padding:88px 0}
.cta-band .tel{font-family:var(--disp);font-size:clamp(1.5rem,4.2vw,2.2rem);font-weight:900;letter-spacing:.04em;margin:14px 0 4px}
.cta-band .note{font-size:.82rem;color:var(--dim);letter-spacing:.1em}
.cta-band .btn{display:inline-block;margin-top:24px;font-size:.9rem;letter-spacing:.1em;font-weight:700;
  background:var(--amber);color:var(--night);padding:15px 46px;transition:opacity .25s}
.cta-band .btn:hover{opacity:.85}

/* footer */
footer{background:var(--night);border-top:1px solid var(--line);padding:44px 0 34px}
.f-inner{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.f-nav{display:flex;gap:22px;list-style:none;font-size:.78rem;letter-spacing:.14em}
.f-nav a{color:var(--dim);transition:color .2s}
.f-nav a:hover{color:var(--amber)}
footer small{font-size:.72rem;letter-spacing:.18em;color:var(--dim)}