*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
:root{
  --bg:#ffffff;
  --bg-soft:#f8fafc;
  --bg-card:#f1f5f9;
  --line:#e2e8f0;
  --line-2:#cbd5e1;
  --text:#0f172a;
  --text-2:#334155;
  --text-mute:#64748b;
  --text-dim:#94a3b8;
  --accent:#0284c7;        /* アルミブルー */
  --accent-2:#0369a1;
  --accent-soft:#e0f2fe;
  --silver:#94a3b8;        /* アルミシルバー */
  --warn:#dc2626;
  --pass:#059669;
}
html{scroll-behavior:smooth;background:var(--bg);}
body{font-family:'Noto Sans JP',sans-serif;background:var(--bg);color:var(--text);line-height:1.7;font-size:15px;-webkit-font-smoothing:antialiased;}
.mono{font-family:'JetBrains Mono','Roboto Mono',monospace;}
img{display:block;max-width:100%;}
a{color:inherit;}

.demo-tag{position:fixed;top:0;left:0;right:0;background:#0f172a;color:#fff;text-align:center;padding:8px 12px;font-size:0.7rem;letter-spacing:0.05em;z-index:200;}

header{position:fixed;top:38px;left:0;right:0;background:rgba(255,255,255,0.95);backdrop-filter:blur(12px);z-index:100;height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 40px;border-bottom:1px solid var(--line);}
.logo{display:flex;align-items:center;gap:12px;color:var(--text);text-decoration:none;}
.logo-mark{width:38px;height:38px;background:linear-gradient(135deg,var(--accent),var(--silver));color:#fff;display:grid;place-items:center;font-family:'JetBrains Mono',monospace;font-weight:700;font-size:1.1rem;}
.logo-text{display:flex;flex-direction:column;line-height:1.1;}
.logo-text span{font-size:0.9rem;font-weight:700;}
.logo-text small{font-family:'JetBrains Mono',monospace;font-size:0.55rem;color:var(--text-mute);letter-spacing:0.15em;margin-top:3px;}
nav{display:flex;align-items:center;gap:4px;}
nav a{color:var(--text-2);text-decoration:none;font-size:0.78rem;padding:8px 14px;font-family:'JetBrains Mono',monospace;letter-spacing:0.05em;text-transform:uppercase;}
nav a:hover{color:var(--accent);}
nav a.current{color:var(--accent);}
.nav-cta{background:var(--accent)!important;color:#fff!important;font-weight:700!important;padding:9px 20px!important;}

/* === HERO: Editorial-style with big "50" === */
.hero{padding:130px 40px 80px;background:linear-gradient(180deg,rgba(255,255,255,0.95) 0%,rgba(241,245,249,0.96) 100%),url('images/hero.jpg') center/cover no-repeat;min-height:100vh;display:flex;align-items:center;}
.hero-inner{max-width:1300px;margin:0 auto;width:100%;display:grid;grid-template-columns:1fr 1.2fr;gap:80px;align-items:center;}
.hero-left{position:relative;}
.hero-eyebrow{font-family:'JetBrains Mono',monospace;color:var(--accent);font-size:0.78rem;letter-spacing:0.25em;font-weight:700;margin-bottom:18px;display:block;}
.hero-yrs{font-family:'JetBrains Mono',monospace;font-size:clamp(8rem,18vw,16rem);font-weight:700;line-height:0.85;background:linear-gradient(180deg,var(--text) 30%,var(--accent) 100%);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:-0.05em;}
.hero-yrs sub{font-size:0.18em;color:var(--text-2);font-weight:500;margin-left:8px;letter-spacing:0.1em;-webkit-text-fill-color:var(--text-2);}
.hero-yrs-label{font-family:'JetBrains Mono',monospace;color:var(--text-mute);font-size:0.85rem;letter-spacing:0.3em;margin-top:8px;text-transform:uppercase;}

.hero-right h1{font-family:'Noto Sans JP',sans-serif;font-size:clamp(1.8rem,3.5vw,3.2rem);font-weight:900;line-height:1.4;color:var(--text);margin-bottom:24px;letter-spacing:-0.01em;}
.hero-right h1 em{font-style:normal;color:var(--accent);}
.hero-right h1 .strike{position:relative;display:inline-block;}
.hero-right h1 .strike::before{content:'';position:absolute;top:50%;left:-4px;right:-4px;height:6px;background:var(--accent-soft);z-index:-1;}
.hero-lead{color:var(--text-mute);font-size:0.95rem;line-height:2;margin-bottom:28px;}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;}
.btn{display:inline-block;padding:14px 28px;text-decoration:none;font-weight:700;font-size:0.85rem;font-family:'JetBrains Mono',monospace;letter-spacing:0.1em;text-transform:uppercase;border:none;cursor:pointer;transition:all 0.2s;}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-2);}
.btn-out{background:transparent;border:1px solid var(--line-2);color:var(--text-2);}
.btn-out:hover{border-color:var(--accent);color:var(--accent);}

/* === Story: Editorial column === */
.story{padding:96px 40px;background:var(--bg);}
.story-inner{max-width:880px;margin:0 auto;}
.story-eyebrow{font-family:'JetBrains Mono',monospace;color:var(--accent);font-size:0.78rem;letter-spacing:0.2em;font-weight:700;margin-bottom:14px;display:block;text-align:center;}
.story h2{font-family:'Noto Sans JP',sans-serif;font-size:clamp(1.8rem,3vw,2.6rem);font-weight:900;line-height:1.4;color:var(--text);margin-bottom:32px;text-align:center;}
.story h2 em{font-style:normal;color:var(--accent);}
.story-text p{font-size:1rem;line-height:2.1;color:var(--text-2);margin-bottom:24px;}
.story-text p.lead{font-size:1.15rem;color:var(--text);font-weight:500;line-height:1.95;border-left:3px solid var(--accent);padding-left:24px;margin:32px 0;}

/* === Capabilities: Vertical timeline === */
.caps{padding:96px 40px;background:var(--bg-soft);}
.caps-head{text-align:center;margin-bottom:64px;}
.caps-eyebrow{font-family:'JetBrains Mono',monospace;color:var(--accent);font-size:0.78rem;letter-spacing:0.2em;font-weight:700;margin-bottom:14px;display:block;}
.caps h2{font-family:'Noto Sans JP',sans-serif;font-size:clamp(1.8rem,3vw,2.6rem);font-weight:900;color:var(--text);margin-bottom:14px;}
.caps-lead{color:var(--text-mute);max-width:680px;margin:0 auto;line-height:1.95;}

.cap-list{max-width:1100px;margin:0 auto;}
.cap-row{display:grid;grid-template-columns:80px 1fr;gap:32px;padding:36px 0;border-top:1px solid var(--line);align-items:start;}
.cap-row:last-child{border-bottom:1px solid var(--line);}
.cap-num{font-family:'JetBrains Mono',monospace;font-size:1.6rem;color:var(--accent);font-weight:700;}
.cap-content{display:grid;grid-template-columns:1fr 1.5fr;gap:48px;align-items:start;}
.cap-en{font-family:'JetBrains Mono',monospace;color:var(--accent);font-size:0.78rem;letter-spacing:0.2em;font-weight:700;margin-bottom:8px;}
.cap-jp{font-size:1.4rem;font-weight:900;color:var(--text);margin-bottom:14px;line-height:1.4;}
.cap-desc{color:var(--text-mute);font-size:0.92rem;line-height:1.95;margin-bottom:18px;}
.cap-tags{display:flex;flex-wrap:wrap;gap:6px;}
.cap-tag{font-family:'JetBrains Mono',monospace;font-size:0.7rem;padding:3px 10px;background:var(--accent-soft);color:var(--accent-2);letter-spacing:0.05em;}

/* === Materials Catalog === */
.materials{padding:96px 40px;background:var(--bg);}
.materials-head{text-align:center;margin-bottom:48px;}
.materials h2{font-family:'Noto Sans JP',sans-serif;font-size:clamp(1.8rem,3vw,2.6rem);font-weight:900;color:var(--text);margin-bottom:14px;}
.materials-lead{color:var(--text-mute);max-width:680px;margin:0 auto;line-height:1.95;}
.mats-grid{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.mat-cell{background:var(--bg);padding:32px 28px;}
.mat-name{font-family:'JetBrains Mono',monospace;font-size:1.6rem;font-weight:700;color:var(--accent);letter-spacing:0.05em;margin-bottom:8px;}
.mat-h3{font-size:1rem;font-weight:700;color:var(--text);margin-bottom:10px;}
.mat-desc{color:var(--text-mute);font-size:0.85rem;line-height:1.85;}

/* === Repair Story (unique to fusekin) === */
.repair{padding:120px 40px;background:linear-gradient(135deg,var(--accent) 0%,var(--accent-2) 100%);color:#fff;}
.repair-inner{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
.repair-eyebrow{font-family:'JetBrains Mono',monospace;color:rgba(255,255,255,0.7);font-size:0.78rem;letter-spacing:0.25em;font-weight:700;margin-bottom:18px;display:block;}
.repair h2{font-family:'Noto Sans JP',sans-serif;font-size:clamp(2rem,3.5vw,3rem);font-weight:900;color:#fff;line-height:1.3;margin-bottom:28px;}
.repair p{color:rgba(255,255,255,0.9);font-size:1rem;line-height:2.1;margin-bottom:18px;}
.repair-quote{background:rgba(255,255,255,0.1);padding:32px 28px;border-left:3px solid #fff;}
.repair-quote-text{font-size:1.2rem;color:#fff;font-weight:700;line-height:1.7;font-style:italic;margin-bottom:14px;}
.repair-quote-by{font-family:'JetBrains Mono',monospace;font-size:0.78rem;color:rgba(255,255,255,0.7);letter-spacing:0.1em;}

/* === Studio info === */
.studio{padding:96px 40px;background:var(--bg-soft);}
.studio-inner{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;}
.studio-info table{width:100%;border-collapse:collapse;}
.studio-info th,.studio-info td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);font-size:0.92rem;vertical-align:top;}
.studio-info th{width:120px;color:var(--text-mute);font-family:'JetBrains Mono',monospace;font-size:0.7rem;letter-spacing:0.1em;text-transform:uppercase;background:var(--bg);}
.studio-info td{color:var(--text);}

/* === Contact === */
.contact{padding:96px 40px;background:var(--bg);}
.contact-card{max-width:680px;margin:0 auto;background:var(--bg-soft);padding:56px 48px;border:1px solid var(--line);text-align:center;}
.contact-eng{font-family:'JetBrains Mono',monospace;font-size:0.78rem;letter-spacing:0.25em;color:var(--accent);font-weight:700;margin-bottom:8px;}
.contact-card h2{font-size:2rem;color:var(--text);margin:0 0 12px;font-weight:900;}
.contact-card > p{color:var(--text-mute);font-size:0.9rem;margin-bottom:32px;}
.contact-tel{font-family:'JetBrains Mono',monospace;font-size:2.2rem;color:var(--accent);font-weight:700;letter-spacing:0.05em;display:block;margin-bottom:8px;text-decoration:none;}
.contact-tel-note{font-size:0.78rem;color:var(--text-mute);margin-bottom:24px;display:block;}

/* === Footer === */
footer{background:var(--text);color:rgba(255,255,255,0.7);padding:48px 40px;}
.footer-inner{max-width:1300px;margin:0 auto;display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:32px;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,0.1);margin-bottom:24px;}
.footer-info{font-size:0.78rem;line-height:1.85;font-family:'JetBrains Mono',monospace;}
.footer-h{color:var(--accent);font-family:'JetBrains Mono',monospace;font-size:0.65rem;letter-spacing:0.2em;margin-bottom:14px;text-transform:uppercase;}
.footer-nav{display:flex;flex-direction:column;gap:6px;}
.footer-nav a{color:rgba(255,255,255,0.6);text-decoration:none;font-size:0.78rem;}
.footer-nav a:hover{color:var(--accent);}
.footer-copy{font-size:0.7rem;color:rgba(255,255,255,0.4);text-align:center;font-family:'JetBrains Mono',monospace;letter-spacing:0.1em;}

/* === Page hero === */
.page-hero{padding:140px 40px 60px;background:var(--bg-soft);border-bottom:1px solid var(--line);}
.page-hero-inner{max-width:1200px;margin:0 auto;}
.page-hero .crumb{font-family:'JetBrains Mono',monospace;color:var(--accent);font-size:0.75rem;letter-spacing:0.2em;margin-bottom:12px;}
.page-hero h1{font-size:clamp(1.8rem,3.5vw,2.8rem);font-weight:900;color:var(--text);margin-bottom:14px;}
.page-hero p{color:var(--text-mute);max-width:680px;line-height:1.95;}

/* === Mobile === */
@media(max-width:900px){
  header{padding:0 20px;height:56px;}
  nav a:not(.nav-cta){display:none;}
  .hero{padding:110px 20px 60px;}
  .hero-inner{grid-template-columns:1fr;gap:40px;}
  .hero-yrs{font-size:9rem;}
  .story,.caps,.materials,.repair,.studio,.contact{padding:64px 20px;}
  .repair-inner,.studio-inner{grid-template-columns:1fr;gap:32px;}
  .cap-row{grid-template-columns:1fr;gap:18px;padding:28px 0;}
  .cap-content{grid-template-columns:1fr;gap:18px;}
  .mats-grid{grid-template-columns:1fr;}
  .footer-inner{grid-template-columns:1fr;gap:24px;}
  .demo-tag{font-size:0.6rem;padding:6px 8px;}
}