:root{
      --bg:#071018;
      --bg-deep:#04080e;
      --surface:rgba(255,255,255,.04);
      --line:rgba(255,255,255,.14);
      --text:#f3f6fa;
      --muted:#c2ccd9;
      --primary:#005bac;
      --primary-bright:#1a8ad4;
      --accent:var(--text);
      --max:1180px;
      --gutter:48px;
      --font-display:"Archivo","Noto Sans JP",sans-serif;
      --font-body:"Noto Sans JP",sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;scroll-padding-top:0}
    body{
      margin:0;
      background:var(--bg-deep);
      color:var(--text);
      font-family:var(--font-body);
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img,svg{display:block;max-width:100%}
    button{font:inherit;background:none;border:0;color:inherit;cursor:pointer;padding:0}
    .container{
      width:min(var(--max), calc(100% - var(--gutter) * 2));
      max-width:var(--max);
      margin-inline:auto;
    }
    .eyebrow{
      font-family:var(--font-display);
      font-size:.72rem;
      letter-spacing:.2em;
      text-transform:uppercase;
      color:var(--accent);
      font-weight:700;
    }
    .section{padding:50px 0 110px;position:relative}
    /* アンカー位置はJavaScriptで実際の固定ヘッダー高に合わせる */
    section[id], #technology, #contact{scroll-margin-top:0}
    .section-title{
      font-family:var(--font-display);
      font-size:clamp(2rem,4.2vw,3.8rem);
      line-height:1.1;
      letter-spacing:-.03em;
      margin:12px 0 18px;
      font-weight:800;
    }
    .flow-arrow{
      display:inline-block;
      font-size:.42em;
      vertical-align:middle;
      margin:0 .15em;
      color:var(--accent);
      opacity:.75;
      transform:translateY(-.08em);
    }
    /* 工程タイトルはPCでは1行で表示 */
    .process-head .section-title{
      white-space:nowrap;
      font-size:clamp(1.9rem,3.45vw,3.35rem);
    }
    .section-lead{
      max-width:720px;
      color:var(--muted);
      font-size:clamp(1rem,1.4vw,1.15rem);
      margin:0;
    }

    /* Header */
    header{
      position:fixed;inset:0 0 auto 0;z-index:50;
      border-bottom:1px solid rgba(0,0,0,.08);
      background:#fff;
      color:#1a2332;
    }
    header.scrolled{box-shadow:0 8px 24px rgba(0,0,0,.06)}
    .nav{height:80px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{display:flex;align-items:center;gap:14px;min-width:0;color:#1a2332}
    .brand-logo{width:160px;height:auto}
    .brand-text{display:flex;align-items:center;min-width:0}
    .brand-text strong{
      font-family:var(--font-display);
      font-size:1.05rem;
      letter-spacing:.04em;
      font-weight:700;
      white-space:nowrap;
      color:#1a2332;
    }
    .nav-links{display:flex;align-items:center;gap:22px;font-size:.84rem;color:#334155}
    .nav-links a{opacity:.9;transition:color .2s,opacity .2s}
    .nav-links a:hover{color:var(--primary);opacity:1}
    .nav-links a.active:not(.nav-cta){color:var(--primary);opacity:1;font-weight:700}
    .nav-links a.active:not(.nav-cta)::after{content:"";display:block;height:2px;background:var(--primary);margin-top:6px}
    .nav-links .nav-cta.active{background:var(--primary);border-color:var(--primary);color:#fff}
    .nav-drawer a.active{color:var(--primary);font-weight:700}
    .nav-cta{
      padding:9px 16px;
      border:1px solid var(--primary);
      color:var(--primary);
      font-weight:700;
      font-size:.82rem;
      transition:background .25s,border-color .25s,color .25s;
    }
    .nav-cta:hover{background:var(--primary);border-color:var(--primary);color:#fff}
    .nav-toggle{
      display:none;
      width:44px;height:44px;
      border:1px solid rgba(0,0,0,.12);
      align-items:center;justify-content:center;
    }
    .nav-toggle span,.nav-toggle span:before,.nav-toggle span:after{
      display:block;width:18px;height:1.5px;background:#1a2332;position:relative;
    }
    .nav-toggle span:before,.nav-toggle span:after{content:"";position:absolute;left:0}
    .nav-toggle span:before{top:-6px}
    .nav-toggle span:after{top:6px}
    .nav-drawer{
      display:none;
      position:fixed;inset:80px 0 auto 0;
      background:#fff;
      border-bottom:1px solid rgba(0,0,0,.08);
      padding:20px 24px 28px;
      flex-direction:column;gap:16px;
      z-index:49;
      color:#1a2332;
    }
    .nav-drawer.open{display:flex}
    .nav-drawer a{font-size:1rem;padding:8px 0;border-bottom:1px solid rgba(0,0,0,.08);color:#1a2332}

    /* Hero — left copy / right visual */
    .hero{
      display:flex;
      align-items:center;
      position:relative;
      isolation:isolate;
      width:100%;
      height:56.25vw; /* 1280×720（16:9）の動画全体を表示 */
      min-height:560px;
      padding:110px 0 56px;
      overflow:hidden;
      background:
        linear-gradient(180deg,rgba(4,8,14,.55) 0%,rgba(4,8,14,.45) 45%,rgba(4,8,14,.7) 100%),
        url("image/bg01.jpg") center / cover no-repeat;
      transition:height 1.45s cubic-bezier(.22,1,.36,1);
    }
    .hero.is-content-mode{
      height:max(560px, calc(56.25vw - 120px));
    }
    .hero:before{
      content:"";
      position:absolute;inset:0;z-index:1;
      background:radial-gradient(circle at 70% 30%,rgba(0,91,172,.12),transparent 42%);
      opacity:0;
      transition:opacity 1s ease .25s;
      pointer-events:none;
    }
    .hero.is-content-mode:before{opacity:1}
    .hero-video-layer{
      position:absolute;
      inset:0;
      z-index:3;
      display:flex;
      align-items:center;
      justify-content:center;
      opacity:1;
      visibility:visible;
      background:transparent;
      transition:opacity 1.15s ease, visibility 0s linear 1.15s;
      pointer-events:none;
    }
    .hero-video-layer::after{
      content:none;
    }
    .hero-video-layer.is-fading{
      opacity:0;
      visibility:hidden;
    }
    .hero-video{
      width:100%;
      height:100%;
      object-fit:contain;
      object-position:center;
      background:transparent;
    }
    .hero-grid{
      position:relative;
      z-index:2;
      width:100%;
      max-width:980px;
    }
    .hero-copy-col{
      position:relative;
      z-index:2;
      min-width:0;
      display:flex;
      align-items:center;
      gap:clamp(20px,3vw,36px);
      opacity:0;
      visibility:hidden;
      transform:translateY(18px);
      transition:opacity .9s ease, transform .9s cubic-bezier(.22,1,.36,1), visibility 0s linear .9s;
    }
    .hero-copy-col.is-visible{
      opacity:1;
      visibility:visible;
      transform:none;
      transition-delay:0s;
    }
    .hero-logo{
      width:clamp(160px,22vw,260px);
      height:auto;
      flex-shrink:0;
      opacity:1;
      transform:none;
    }
    .hero-text{min-width:0}
    .hero-brand{
      font-family:var(--font-display);
      font-size:clamp(1.2rem,2.4vw,1.7rem);
      font-weight:800;
      letter-spacing:.04em;
      margin:0 0 10px;
      color:#fff;
      opacity:1;
      transform:none;
    }
    .hero h1{
      font-family:var(--font-display);
      font-size:clamp(3rem,6.6vw,5.6rem);
      line-height:1.0;
      letter-spacing:-.05em;
      margin:0 0 14px;
      font-weight:800;
      opacity:1;
      transform:none;
    }
    .hero h1 span{
      color:var(--accent);
    }
    .hero-copy{
      font-size:clamp(1.05rem,1.6vw,1.28rem);
      color:#d5dde8;
      max-width:34em;
      margin:0;
      opacity:1;
      transform:none;
    }
    .hero-actions{
      display:flex;gap:12px;flex-wrap:wrap;margin-top:22px;
      opacity:1;
      transform:none;
    }
    .hero-skip{
      position:absolute;
      left:50%;
      /* ヒーローが画面高を超えるときも、画面内下部に収める */
      bottom:max(20px, calc(100% - 100vh + 28px));
      bottom:max(20px, calc(100% - 100dvh + 28px));
      z-index:5;
      transform:translateX(-50%);
      padding:8px 18px;
      border:1px solid rgba(255,255,255,.35);
      background:rgba(4,8,14,.45);
      color:rgba(255,255,255,.9);
      font-family:var(--font-display);
      font-size:.72rem;
      font-weight:700;
      letter-spacing:.16em;
      text-transform:uppercase;
      backdrop-filter:blur(8px);
      cursor:pointer;
      transition:background .2s,border-color .2s,color .2s,opacity .3s;
    }
    .hero-skip:hover{
      background:rgba(0,91,172,.55);
      border-color:rgba(255,255,255,.55);
      color:#fff;
    }
    .hero.is-content-mode .hero-skip{
      opacity:0;
      visibility:hidden;
      pointer-events:none;
    }
    .hero-scroll{
      position:absolute;
      left:50%;
      bottom:max(20px, calc(100% - 100vh + 28px));
      bottom:max(20px, calc(100% - 100dvh + 28px));
      z-index:4;
      display:flex;
      align-items:center;
      justify-content:center;
      width:40px;
      height:40px;
      margin-left:-20px;
      color:rgba(255,255,255,.72);
      opacity:0;
      visibility:hidden;
      pointer-events:none;
      transition:opacity .35s ease,visibility .35s ease;
    }
    .hero.is-content-mode .hero-scroll{
      opacity:1;
      visibility:visible;
      pointer-events:auto;
    }
    @media (max-width:768px){
      .hero-scroll,
      .hero.is-content-mode .hero-scroll{
        display:none !important;
      }
    }
    .hero-scroll:hover{color:#fff}
    .hero-scroll-chevron{
      display:block;
      width:12px;
      height:12px;
      border-right:2px solid currentColor;
      border-bottom:2px solid currentColor;
      transform:rotate(45deg);
      animation:hero-scroll-bounce 1.8s ease-in-out infinite;
    }
    @keyframes hero-scroll-bounce{
      0%,100%{transform:rotate(45deg) translate(0,0);opacity:.55}
      50%{transform:rotate(45deg) translate(3px,3px);opacity:1}
    }
    .btn{
      display:inline-flex;align-items:center;justify-content:center;
      padding:14px 22px;
      font-weight:700;
      font-size:.92rem;
      border:1px solid var(--line);
      transition:transform .25s,background .25s,border-color .25s;
    }
    .btn:hover{transform:translateY(-2px);border-color:rgba(255,255,255,.35)}
    .btn-primary{
      background:linear-gradient(135deg,var(--primary),var(--primary-bright));
      border-color:#3fa9f5;
    }
    .btn-ghost{background:rgba(255,255,255,.04)}

    /* Positioning */
    .positioning{padding:80px 0 40px}
    .position-quote{
      font-family:var(--font-display);
      font-size:clamp(1.8rem,4vw,3.4rem);
      line-height:1.2;
      letter-spacing:-.03em;
      font-weight:800;
      margin:0 0 36px;
      max-width:18em;
    }
    .position-quote em{font-style:normal;color:var(--accent)}
    .position-body{
      display:grid;
      grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
      gap:56px;
      align-items:center;
      max-width:none;
    }
    .position-copy{display:grid;gap:1.1em}
    .position-body p{margin:0;color:var(--muted);font-size:1.05rem}
    .position-image{
      position:relative;
      max-width:620px;
      margin-left:auto;
      min-width:0;
      width:100%;
      margin:0; /* figure要素の既定余白を解除し、右端をコンテナに揃える */
      overflow:hidden;
      min-height:380px;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.12);
      background:#0c1218;
      box-shadow:0 28px 70px rgba(0,0,0,.34);
    }
    .position-image::before{
      content:"";
      position:absolute;
      width:70%;
      aspect-ratio:1;
      right:-8%;
      top:50%;
      transform:translateY(-50%);
      border-radius:50%;
      background:radial-gradient(circle,rgba(38,169,255,.18),rgba(38,169,255,0) 70%);
      filter:blur(10px);
      pointer-events:none;
      z-index:0;
    }
    .position-image img{
      position:relative;
      z-index:1;
      width:100%;
      height:100%;
      min-height:380px;
      display:block;
      object-fit:cover;
      border-radius:17px;
    }

/* Why */
    .why{background:linear-gradient(180deg,var(--bg-deep),#0a1420 50%,var(--bg-deep))}
    .why-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-top:40px}
    .why-lead{font-size:clamp(1.15rem,2vw,1.45rem);color:#e8eef6;margin:0 0 12px;font-weight:500}
    .why-intro{color:var(--muted);margin:0 0 18px}
    .cant-text{
      margin:0 0 28px;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
      max-width:36em;
    }
    .cant-text li{
      color:#e8eef6;
      font-size:1.08rem;
      font-weight:700;
      line-height:1.6;
    }
    .cant-text li:before{
      content:"△";
      color:var(--accent);
      margin-right:.55em;
      font-weight:700;
    }
    .cant-text li span{
      background:linear-gradient(transparent 62%,rgba(0,91,172,.45) 62%);
    }
    .why-note{color:var(--muted);margin:0;max-width:36em}
    .why-visual{
      position:relative;
      max-width:620px;
      margin-left:auto;
      width:100%;
      margin:0;
      min-height:380px;
      overflow:hidden;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.12);
      background:#0c1218;
      box-shadow:0 28px 70px rgba(0,0,0,.34);
    }
    .why-visual::before{
      content:"";
      position:absolute;
      width:70%;
      aspect-ratio:1;
      right:-8%;
      top:50%;
      transform:translateY(-50%);
      border-radius:50%;
      background:radial-gradient(circle,rgba(38,169,255,.18),rgba(38,169,255,0) 70%);
      filter:blur(10px);
      pointer-events:none;
      z-index:0;
    }
    .why-visual img{
      position:relative;
      z-index:1;
      width:100%;
      height:100%;
      min-height:380px;
      object-fit:cover;
      display:block;
      border-radius:17px;
    }

/* Process — spine */
    .process-head{max-width:760px}
    .storyline{margin-top:56px;position:relative;display:grid;gap:0}
    .storyline:before{
      content:"";
      position:absolute;left:31px;top:12px;bottom:12px;width:1px;
      background:linear-gradient(var(--primary),var(--accent));
    }
    .step{display:grid;grid-template-columns:64px 1fr;gap:28px;padding:8px 0 8px}
    .step-num{
      width:64px;height:64px;border-radius:50%;
      display:grid;place-items:center;
      border:1px solid var(--line);
      background:var(--bg-deep);
      font-family:var(--font-display);
      font-weight:800;
      color:var(--accent);
      position:relative;z-index:1;
    }
    .step-content{padding:4px 0 40px;border-bottom:1px solid rgba(255,255,255,.1)}
    .step:last-child .step-content{border-bottom:0;padding-bottom:0}
    .step h3{
      font-family:var(--font-display);
      font-size:clamp(1.5rem,3vw,2.4rem);
      margin:0 0 10px;
      letter-spacing:-.02em;
      font-weight:800;
    }
    .step h3 b{font-weight:800;color:var(--accent);margin-right:.35em}
    .step p{margin:0;color:var(--muted);max-width:720px}
    .step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
    .step-tags span{
      font-size:.76rem;
      padding:6px 10px;
      border:1px solid rgba(255,255,255,.12);
      color:#c9d2e0;
    }

    /* Solutions + Tech */
    .solutions-block{margin-top:48px}
    .solution-list{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:1px;
      background:var(--line);
      border:1px solid var(--line);
    }
    .solution-item{
      background:var(--bg);
      padding:28px 24px;
      min-height:200px;
    }
    .solution-item h3{
      font-family:var(--font-display);
      font-size:1.4rem;
      margin:0 0 8px;
      font-weight:800;
    }
    .solution-item p{margin:0 0 14px;color:var(--muted);font-size:1.05rem}
    .solution-item ul{
      list-style:none;padding:0;margin:0;
      display:grid;gap:6px;
      font-size:.92rem;color:#d0d8e4;
    }
    .solution-item li:before{content:"— ";color:var(--accent)}

    .tech-block{
      margin-top:72px;
      padding-top:72px;
      border-top:1px solid var(--line);
    }
    .tech-block .section-title{font-size:clamp(2.2rem,4.5vw,4rem)}
    .tech-block .section-lead{font-size:clamp(1.05rem,1.5vw,1.22rem)}
    .tech-block .eyebrow{font-size:.8rem}
    .tech-layout{
      margin-top:40px;
      display:grid;
      grid-template-columns:minmax(0,.75fr) minmax(0,1.55fr);
      gap:36px;
      align-items:stretch;
    }
    .tech-core{
      padding:36px 28px;
      border:1px solid var(--line);
      background:
        radial-gradient(circle at 80% 20%,rgba(0,91,172,.22),transparent 45%),
        var(--surface);
      min-height:280px;
      display:flex;flex-direction:column;justify-content:center;
    }
    .tech-core h3{
      font-family:var(--font-display);
      font-size:clamp(2rem,3.6vw,3rem);
      line-height:1;
      margin:10px 0 18px;
      font-weight:800;
      letter-spacing:-.03em;
    }
    .tech-core h3 strong{color:var(--accent);font-weight:800}
    .tech-core p{margin:0;color:var(--muted);max-width:28em;font-size:1.05rem}
    .tech-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 22px}
    .tech-item{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:18px 0;
      border-bottom:1px solid rgba(255,255,255,.1);
    }
    .tech-item-body{min-width:0}
    .tech-item b{display:block;font-size:1.12rem;margin-bottom:4px}
    .tech-item span{font-size:.92rem;color:var(--muted)}
    .tech-link{
      flex-shrink:0;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:8px 14px;
      border:1px solid rgba(255,255,255,.28);
      font-size:.8rem;
      font-weight:700;
      letter-spacing:.04em;
      color:#fff;
      white-space:nowrap;
      transition:background .2s,border-color .2s;
    }
    .tech-link:hover{
      background:var(--primary);
      border-color:var(--primary);
    }

    /* Examples — visual gallery */
    .examples-grid{
      margin-top:28px;
      display:grid;
      grid-template-columns:repeat(6,1fr);
      gap:12px;
    }
    .example{
      grid-column:span 2;
      min-height:240px;
      padding:18px;
      display:flex;
      flex-direction:column;
      justify-content:flex-end;
      position:relative;
      overflow:hidden;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.12);
      background:#0c1218;
      box-shadow:0 28px 70px rgba(0,0,0,.34);
    }
    .example::before{
      content:"";
      position:absolute;
      width:70%;
      aspect-ratio:1;
      right:-8%;
      top:50%;
      transform:translateY(-50%);
      border-radius:50%;
      background:radial-gradient(circle,rgba(38,169,255,.18),rgba(38,169,255,0) 70%);
      filter:blur(10px);
      z-index:0;
    }
.example.wide{grid-column:span 3;min-height:280px}
    .example:not(.combo):before{
      content:"";
      position:absolute;inset:0;
      background:var(--art);
    }
    .example:after{
      content:"";
      position:absolute;inset:55% 0 0;
      background:linear-gradient(transparent,rgba(3,6,11,.78));
      z-index:1;
      pointer-events:none;
    }
    .example h3{
      position:relative;z-index:2;margin:0;
      font-family:var(--font-display);
      font-size:.92rem;
      font-weight:700;
      letter-spacing:.02em;
      color:rgba(255,255,255,.9);
    }
    .example.combo .combo-media{
      position:absolute;inset:0;
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:2px;
      background:#0a1018;
    }
    .example.combo .combo-media img{
      width:100%;
      height:100%;
      object-fit:cover;
    }
    .example img{position:relative;z-index:1;}
.example.photo > img{
      position:absolute;inset:0;
      width:100%;
      height:100%;
      object-fit:cover;
    }

    /* Audience */
    .audience-row{
      margin-top:40px;
      display:grid;
      grid-template-columns:repeat(5,1fr);
      gap:12px;
    }
    .audience-item{
      padding:22px 16px;
      border-top:2px solid var(--primary);
      background:var(--surface);
    }
    .audience-item b{
      display:block;
      font-family:var(--font-display);
      font-size:1.1rem;
      margin-bottom:4px;
    }
    .audience-item span{font-size:.92rem;color:var(--muted)}

    /* Vision + Contact */
    .closing{
      padding:120px 0 100px;
      background:
        radial-gradient(ellipse 60% 40% at 50% 0%,rgba(0,91,172,.18),transparent 55%),
        linear-gradient(180deg,#071018,#04080e);
      text-align:center;
    }
    .closing h2{
      font-family:var(--font-display);
      font-size:clamp(2.8rem,7vw,5.8rem);
      line-height:.95;
      letter-spacing:-.04em;
      margin:14px 0 28px;
      font-weight:800;
    }
    .closing h2 span{display:block;color:var(--accent)}
    .closing > .container > p{
      color:var(--muted);
      font-size:clamp(1rem,1.5vw,1.18rem);
      max-width:680px;
      margin:0 auto;
    }
    .contact-panel{
      margin:56px auto 0;
      max-width:720px;
      padding:40px 36px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.03);
      text-align:left;
    }
    .contact-panel h3{
      font-family:var(--font-display);
      font-size:clamp(1.4rem,2.5vw,1.9rem);
      margin:0 0 10px;
      font-weight:800;
    }
    .contact-panel p{margin:0 0 24px;color:var(--muted)}
    .contact-actions{display:flex;gap:12px;flex-wrap:wrap}

    footer{
      padding:28px 0;
      border-top:1px solid var(--line);
      color:var(--muted);
      font-size:.78rem;
    }
    .footer-row{
      display:flex;
      justify-content:center;
      text-align:center;
    }
    .footer-row p{margin:0}

    .reveal{opacity:0;transform:translateY(22px);transition:opacity .75s ease,transform .75s ease}
    .reveal.visible{opacity:1;transform:none}

    @keyframes rise{
      to{opacity:1;transform:none}
    }
    @media (prefers-reduced-motion:reduce){
      /* メイン動画は表示する。ページ内の補助アニメーションのみ抑制する。 */
      .reveal{opacity:1;transform:none;transition:none}
      .hero-scroll{opacity:1;animation:none}
      .hero-scroll-chevron{animation:none;opacity:.8}
      html{scroll-behavior:auto}
    }

    @media (max-width:1100px){
      .hero h1{font-size:clamp(2.6rem,5.5vw,4.2rem)}
    }
    @media (max-width:980px){
      .nav-links{display:none}
      .nav-toggle{display:inline-flex}
      .why-grid,.tech-layout,.position-body{grid-template-columns:1fr}
      .position-image{max-width:860px}
      .solution-list{grid-template-columns:1fr 1fr}
      .examples-grid{grid-template-columns:1fr 1fr}
      .example,.example.wide{grid-column:span 1;min-height:240px}
      .audience-row{grid-template-columns:1fr 1fr}
    }
    @media (max-width:640px){
      .position-image,
      .why-visual{min-height:260px}
      .position-image img,
      .why-visual img{min-height:260px}

      :root{--gutter:20px}
      .section{padding:50px 0 80px}
      .brand-text{display:none}
      .solution-list,.audience-row,.tech-grid,.examples-grid{grid-template-columns:1fr}
      .storyline:before{left:23px}
      .step{grid-template-columns:48px 1fr;gap:16px}
      .step-num{width:48px;height:48px;font-size:.85rem}
      .contact-panel{padding:28px 22px}
      .hero-video{
        width:100%;
        height:100%;
        object-fit:cover;
        object-position:center center;
        background:transparent;
      }
      .hero-copy-col{align-items:flex-start;gap:16px}
      .hero-logo{width:120px}
      .hero h1{font-size:clamp(2.2rem,10vw,3.4rem)}
    }

    @media (max-width: 768px){
      html{scroll-padding-top:0}
      section[id], #technology, #contact{scroll-margin-top:0}
      .process-head .section-title{
        white-space:normal;
        font-size:clamp(1.9rem,8vw,2.7rem);
      }
    }
  
.mobile-only{display:none}
@media (max-width:768px){.mobile-only{display:block}}
@media (min-width:769px){
  .pc-nowrap{white-space:nowrap}
}

/* Hero title: PCは1行、スマートフォンのみ改行 */
.hero h1{
  white-space:nowrap;
}

.hero h1 span{
  display:inline;
}

.mobile-only{
  display:none !important;
}

@media (max-width:768px){
  .hero h1{
    white-space:normal;
  }

  .mobile-only{
    display:block !important;
  }
}


#vision{
    scroll-margin-top:32px;
}



/* Smartphone Hero: keep height stable before/after video */
@media (max-width:768px){
  .hero{
    /* 元の動画表示時の縦幅に統一 */
    --hero-mobile-height:clamp(320px,58vh,520px);
    height:var(--hero-mobile-height);
    min-height:var(--hero-mobile-height);
    max-height:var(--hero-mobile-height);
    padding:0;
    overflow:hidden;
    transition:none;
  }

  .hero,
  .hero.is-content-mode{
    height:var(--hero-mobile-height);
    min-height:var(--hero-mobile-height);
    max-height:var(--hero-mobile-height);
  }

  .hero.is-content-mode{
    display:flex;
    align-items:center;
    justify-content:center;
    padding:88px 16px 28px;
    overflow:hidden;
  }

  .hero-grid{
    display:flex;
    align-items:center;
    justify-content:center;
    max-width:100%;
  }

  .hero-copy-col{
    width:100%;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    text-align:center;
    gap:12px;
  }

  .hero-logo{
    width:100px;
    margin:0 auto;
    flex:0 0 auto;
  }

  .hero.is-content-mode .hero-logo{
    margin-top:0;
  }

  .hero-text,
  .hero-brand,
  .hero-copy{
    width:100%;
    text-align:center;
  }

  .hero-copy{
    margin-inline:auto;
  }

  .hero-actions{
    justify-content:center;
  }
}


/* Audience: 2 columns on smartphones */
@media (max-width:640px){
  .audience-row{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:12px;
  }

  .audience-item:last-child{
    grid-column:1 / -1;
    max-width:calc(50% - 6px);
  }
}



/* Core Technologies: stronger visual hierarchy */
.tech-grid{
  gap:14px;
}

.tech-item{
  position:relative;
  min-height:92px;
  padding:20px 18px 20px 22px;
  border:1px solid rgba(255,255,255,.14);
  border-left:3px solid var(--primary-bright);
  border-radius:14px;
  background:
    linear-gradient(135deg,rgba(0,91,172,.14),rgba(255,255,255,.035) 48%,rgba(255,255,255,.02));
  box-shadow:0 14px 34px rgba(0,0,0,.22);
  overflow:hidden;
  transition:
    transform .28s ease,
    border-color .28s ease,
    box-shadow .28s ease,
    background .28s ease;
}

.tech-item::before{
  content:"";
  position:absolute;
  width:150px;
  height:150px;
  right:-75px;
  top:-75px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(26,138,212,.22),rgba(26,138,212,0) 70%);
  pointer-events:none;
}

.tech-item:hover{
  transform:translateY(-4px);
  border-color:rgba(63,169,245,.52);
  box-shadow:0 24px 52px rgba(0,0,0,.34);
  background:
    linear-gradient(135deg,rgba(0,91,172,.22),rgba(255,255,255,.055) 52%,rgba(255,255,255,.025));
}

.tech-item-body{
  position:relative;
  z-index:1;
}

.tech-item b{
  margin-bottom:7px;
  font-family:var(--font-display);
  font-size:1.18rem;
  line-height:1.25;
  letter-spacing:-.01em;
  color:#fff;
}

.tech-item span{
  display:block;
  font-size:.9rem;
  line-height:1.55;
  color:#cbd6e4;
}

.tech-link{
  position:relative;
  z-index:1;
  min-width:58px;
  padding:9px 14px;
  border-radius:999px;
  border-color:rgba(63,169,245,.52);
  background:rgba(0,91,172,.16);
  color:#fff;
}

.tech-link:hover{
  background:linear-gradient(135deg,var(--primary),var(--primary-bright));
  border-color:transparent;
}

@media (max-width:640px){
  .tech-grid{
    gap:12px;
  }

  .tech-item{
    min-height:104px;
    padding:18px 16px 18px 18px;
    align-items:flex-start;
  }

  .tech-item b{
    font-size:1.08rem;
  }

  .tech-item span{
    font-size:.84rem;
    padding-right:4px;
  }

  .tech-link{
    margin-top:2px;
    padding:8px 12px;
    font-size:.76rem;
  }
}



/* Future Vision: lunar CIM background */
.closing{
  position:relative;
  overflow:hidden;
  isolation:isolate;
  background:
    linear-gradient(180deg,rgba(4,8,14,.70),rgba(4,8,14,.86)),
    url("image/moon_digitaltwin.png") center center / cover no-repeat;
}

.closing::before{
  content:"";
  position:absolute;
  inset:-4%;
  z-index:-2;
  background:
    linear-gradient(180deg,rgba(4,8,14,.18),rgba(4,8,14,.48)),
    url("image/moon_digitaltwin.png") center center / cover no-repeat;
  transform:scale(1.04);
  animation:futureVisionZoom 18s ease-in-out infinite alternate;
  will-change:transform;
}

.closing::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  background:
    radial-gradient(circle at 50% 35%,rgba(0,91,172,.28),transparent 58%),
    linear-gradient(180deg,rgba(4,8,14,.35),rgba(4,8,14,.78));
  pointer-events:none;
}

.closing .container{
  position:relative;
  z-index:1;
}

@keyframes futureVisionZoom{
  from{transform:scale(1.04);}
  to{transform:scale(1.12);}
}

@media (prefers-reduced-motion:reduce){
  .closing::before{
    animation:none;
    transform:scale(1.06);
  }
}


.process-intro{
 display:grid;
 grid-template-columns:1.1fr .9fr;
 gap:40px;
 align-items:center;
 margin-top:18px;
 margin-bottom:36px;
}
.process-intro .section-lead{
 margin:0;
 max-width:none;
}
.process-hero-image{
 margin:0;
}
.process-hero-image img{
 width:100%;
 display:block;
 border-radius:18px;
 border:1px solid rgba(255,255,255,.12);
 box-shadow:0 24px 60px rgba(0,0,0,.35);
}
@media (max-width:768px){
 .process-intro{
   grid-template-columns:1fr;
   gap:20px;
 }
 .process-hero-image{
   order:-1;
 }
}



/* Align Concept / Why / Process visuals */
.position-body,
.why-grid,
.process-intro{
  grid-template-columns:minmax(0,1fr) minmax(0,560px);
  gap:56px;
  align-items:center;
}

.position-image,
.why-visual,
.process-hero-image{
  width:100%;
  max-width:560px;
  margin:0 0 0 auto;
  min-height:0;
  overflow:hidden;
  border-radius:18px;
  border:1px solid rgba(255,255,255,.12);
  background:#0c1218;
  box-shadow:0 24px 60px rgba(0,0,0,.35);
}

.position-image img,
.why-visual img,
.process-hero-image img{
  display:block;
  width:100%;
  height:auto;
  min-height:0;
  aspect-ratio:16 / 9;
  object-fit:cover;
  border-radius:17px;
  transition:transform .35s ease,box-shadow .35s ease;
}

.position-image:hover img,
.why-visual:hover img,
.process-hero-image:hover img{
  transform:scale(1.025);
}

@media (max-width:980px){
  .position-body,
  .why-grid,
  .process-intro{
    grid-template-columns:1fr;
    gap:28px;
  }

  .position-image,
  .why-visual,
  .process-hero-image{
    max-width:100%;
    margin:0;
  }
}


/* Right edge alignment for all feature images */
.position-body,
.why-grid,
.process-intro{
  display:grid;
  grid-template-columns:minmax(0,1fr) 560px !important;
  column-gap:56px;
  align-items:center;
}

.position-image,
.why-visual,
.process-hero-image{
  width:560px !important;
  max-width:560px !important;
  justify-self:end;
  margin-left:auto !important;
  margin-right:0 !important;
}

.position-image img,
.why-visual img,
.process-hero-image img{
  width:100%;
  display:block;
}

@media (max-width:980px){
  .position-body,
  .why-grid,
  .process-intro{
    grid-template-columns:1fr !important;
  }
  .position-image,
  .why-visual,
  .process-hero-image{
    width:100% !important;
    max-width:100% !important;
    justify-self:stretch;
  }
}


/* Match Process image right edge to Concept/Why */
.process-intro{
  grid-template-columns: minmax(0,1fr) 560px !important;
}

.process-hero-image{
  width:560px !important;
  max-width:560px !important;
  justify-self:end !important;
  margin-left:auto !important;
  margin-right:0 !important;
}

.process-hero-image img{
  width:560px;
  max-width:100%;
  display:block;
}



/* Final alignment: Concept / Why / Process visuals */
.position-body,
.why-grid,
.process-intro{
  display:grid;
  grid-template-columns:minmax(0,1fr) 560px !important;
  gap:56px !important;
  align-items:center !important;
  width:100%;
}

.position-copy,
.why-grid > .reveal,
.process-intro > .section-lead{
  min-width:0;
}

.position-image,
.why-visual,
.process-hero-image{
  width:560px !important;
  max-width:560px !important;
  min-height:315px !important;
  height:315px !important;
  justify-self:end !important;
  margin:0 !important;
  overflow:hidden;
}

.position-image img,
.why-visual img,
.process-hero-image img{
  width:100% !important;
  height:100% !important;
  min-height:0 !important;
  aspect-ratio:auto !important;
  object-fit:cover !important;
  display:block;
}

/* Process introduction must use the same full container width */
.process-head{
  max-width:none !important;
  width:100%;
}

.process-intro{
  margin-top:18px;
  margin-bottom:36px;
}

/* Keep all three right edges aligned with the site container */
.position-image,
.why-visual,
.process-hero-image{
  margin-left:auto !important;
  margin-right:0 !important;
}

@media (max-width:980px){
  .position-body,
  .why-grid,
  .process-intro{
    grid-template-columns:1fr !important;
    gap:28px !important;
  }

  .position-image,
  .why-visual,
  .process-hero-image{
    width:100% !important;
    max-width:100% !important;
    height:auto !important;
    min-height:0 !important;
    justify-self:stretch !important;
    margin:0 !important;
  }

  .position-image img,
  .why-visual img,
  .process-hero-image img{
    width:100% !important;
    height:auto !important;
    aspect-ratio:16 / 9 !important;
  }
}


/* Tablet Hero centering */
@media (min-width:769px) and (max-width:1024px){
  .hero.is-content-mode{
    display:flex;
    align-items:center;
    justify-content:center;
    min-height:760px;
  }
  .hero-grid{
    display:flex;
    align-items:center;
    justify-content:center;
    width:100%;
  }
  .hero-copy-col{
    max-width:760px;
    width:100%;
    margin:0 auto;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    text-align:center;
  }
  .hero-logo{
    width:180px;
    margin:0 auto 24px;
  }
  .hero-text,
  .hero-brand,
  .hero-copy{
    text-align:center;
  }
  .hero-actions{
    justify-content:center;
  }
}



/* Solutions section - FORUM8 blue theme */
#solutions{
  background:
    radial-gradient(circle at top,
      rgba(0,91,172,.28),
      transparent 55%),
    linear-gradient(
      180deg,
      #08111d 0%,
      #0c1f33 45%,
      #08111d 100%
    ) !important;
}

@media (min-width:1025px){
  .nav-links{
    gap:18px;
    font-size:.92rem;
  }
}



/* Back to Top */
.back-to-top{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:1000;
  width:58px;
  height:58px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:1px;
  border:1px solid rgba(255,255,255,.24);
  border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--primary-bright));
  color:#fff;
  box-shadow:0 14px 34px rgba(0,0,0,.34);
  opacity:0;
  visibility:hidden;
  transform:translateY(18px);
  pointer-events:none;
  transition:
    opacity .28s ease,
    visibility .28s ease,
    transform .28s ease,
    box-shadow .28s ease;
}

.back-to-top.show{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
  pointer-events:auto;
}

.back-to-top:hover{
  transform:translateY(-4px);
  box-shadow:0 22px 46px rgba(0,0,0,.44);
}

.back-to-top:focus-visible{
  outline:3px solid rgba(110,200,255,.72);
  outline-offset:4px;
}

.back-to-top-arrow{
  display:block;
  width:10px;
  height:10px;
  margin-bottom:1px;
  border-left:2px solid #fff;
  border-top:2px solid #fff;
  transform:rotate(45deg);
  box-sizing:border-box;
}

.back-to-top-label{
  font-family:var(--font-display);
  font-size:.58rem;
  line-height:1;
  font-weight:800;
  letter-spacing:.08em;
}

@media (max-width:768px){
  .back-to-top{
    right:16px;
    bottom:16px;
    width:50px;
    height:50px;
  }

  .back-to-top-arrow{
    width:9px;
    height:9px;
  }

  .back-to-top-label{
    font-size:.52rem;
  }
}

/* Back to Top fallback visibility */
.back-to-top{
  display:flex !important;
}