:root{
    --ink:#0B1B33;
    --ink-soft:#54627C;
    --navy:#16305E;
    --blue:#2E6BC6;
    --sky:#5FA8E6;
    --glow:#7FC4FF;
    --mist:#EEF4FC;
    --paper:#FFFFFF;
    --line:rgba(11,27,51,.10);
    --maxw:1200px;
    --spine-x:44px;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    font-family:"Zen Kaku Gothic New",system-ui,sans-serif;
    background:var(--paper);color:var(--ink);line-height:2;
    -webkit-font-smoothing:antialiased;overflow-x:hidden;
  }
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px}
  img{max-width:100%}

  /* ================= OPENING ================= */
  #intro{
    position:fixed;inset:0;z-index:1000;background:#fff;
    display:flex;align-items:center;justify-content:center;
    transition:opacity .6s ease, visibility .6s;
    animation:introauto .6s ease 2s forwards; /* JSが無くても自動で消える保険 */
  }
  @keyframes introauto{to{opacity:0;visibility:hidden}}
  #intro.done{opacity:0;visibility:hidden;pointer-events:none}
  #intro svg{width:120px;height:120px}
  #intro .hexline{
    fill:none;stroke:var(--navy);stroke-width:2.4;
    stroke-dasharray:400;stroke-dashoffset:400;
    animation:hexdraw 1s ease forwards;
  }
  @keyframes hexdraw{to{stroke-dashoffset:0}}
  #intro .sig{
    fill:var(--sky);
    animation:sigrun 1.1s .45s linear forwards;opacity:0;
  }
  @keyframes sigrun{
    0%{offset-distance:0%;opacity:0}
    10%{opacity:1}
    90%{opacity:1}
    100%{offset-distance:100%;opacity:0}
  }
  #intro .word{
    position:absolute;margin-top:180px;
    font-family:"JetBrains Mono",monospace;font-size:11px;letter-spacing:.5em;
    color:var(--ink-soft);opacity:0;animation:wordin .6s .8s ease forwards;
  }
  @keyframes wordin{to{opacity:1}}

  /* ================= SPINE (connection line) ================= */
  #spine{
    position:fixed;left:var(--spine-x);top:0;bottom:0;width:2px;z-index:5;
    background:rgba(11,27,51,.07);pointer-events:none;
  }
  #spine .fill{
    position:absolute;top:0;left:0;width:100%;height:0%;
    background:linear-gradient(180deg,var(--sky),var(--blue));
    overflow:hidden;
  }
  #spine .fill::after{
    content:"";position:absolute;left:-1px;width:4px;height:60px;
    background:linear-gradient(180deg,transparent,var(--glow),transparent);
    animation:pulseflow 3.2s linear infinite;
  }
  @keyframes pulseflow{
    0%{top:-60px}
    100%{top:100%}
  }
  #spine .tip{
    position:absolute;left:50%;transform:translate(-50%,-50%);
    width:10px;height:10px;background:var(--blue);
    clip-path:polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    box-shadow:0 0 14px var(--glow);
  }
  .node{
    position:absolute;left:var(--spine-x);transform:translate(-50%,-50%);
    width:14px;height:14px;background:#fff;border:2px solid rgba(11,27,51,.18);
    clip-path:polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    z-index:6;transition:background .5s, border-color .5s, box-shadow .5s;
    pointer-events:none;
  }
  .node.lit{
    background:var(--blue);border-color:var(--blue);
    box-shadow:0 0 16px rgba(95,168,230,.8);
  }

  /* ================= HEADER ================= */
  header{
    position:fixed;top:0;left:0;right:0;z-index:100;
    background:rgba(255,255,255,.86);backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
  }
  .nav{
    max-width:var(--maxw);margin:0 auto;padding:0 32px;height:94px;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
  }
  .logo{background:none;border:0;cursor:pointer;display:flex;align-items:center;text-decoration:none}
  .logo img{height:62px;width:auto;display:block}
  .menu{display:flex;align-items:center;gap:2px}
  .menu a{
    background:none;border:0;cursor:pointer;font-family:inherit;text-decoration:none;
    font-size:13px;font-weight:700;color:var(--ink-soft);
    padding:10px 18px;letter-spacing:.04em;position:relative;transition:color .25s;
  }
  .menu a .en{
    display:block;font-family:"JetBrains Mono",monospace;font-weight:400;
    font-size:9px;letter-spacing:.22em;color:var(--sky);margin-top:1px;
  }
  .menu a::after{
    content:"";position:absolute;left:18px;right:18px;bottom:4px;height:2px;
    background:linear-gradient(90deg,var(--blue),var(--sky));
    transform:scaleX(0);transform-origin:left;transition:transform .3s;
  }
  .menu a:hover,.menu a.on{color:var(--ink)}
  .menu a.on::after{transform:scaleX(1)}
  .burger{display:none;background:none;border:0;cursor:pointer;padding:8px}
  .burger span{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0}

  main{padding-top:94px}
  .page{display:none;animation:fade .5s ease both}
  .page.on{display:block}
  @keyframes fade{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

  /* ================= REVEAL ON SCROLL ================= */
  /* JSが有効なときだけ「出現前は透明」にする（JS無し環境では常時表示） */
  body.js .rv{opacity:0;transform:translateY(28px);transition:opacity .9s ease, transform .9s ease}
  body.js .rv.in{opacity:1;transform:none}
  body.js .rv.d1{transition-delay:.12s}
  body.js .rv.d2{transition-delay:.24s}
  body.js .rv.d3{transition-delay:.36s}

  /* kenburns：円形リビール下層スライド（.before .slide.on）で使用 */
  @keyframes kenburns{from{transform:scale(1.08)}to{transform:scale(1)}}

  /* ================= SECTION HEAD ================= */
  .sec{padding:130px 0;position:relative}
  .sechead{margin-bottom:64px}
  .sechead .en{
    font-family:"Space Grotesk",sans-serif;font-weight:700;
    font-size:clamp(38px,5.6vw,72px);letter-spacing:-.02em;line-height:1;
    color:var(--ink);
  }
  .sechead .en .dot{color:var(--blue)}
  .sechead .jp{
    display:flex;align-items:center;gap:14px;margin-top:14px;
    font-size:13.5px;font-weight:700;color:var(--ink-soft);letter-spacing:.14em;
  }
  .sechead .jp::before{content:"";width:34px;height:2px;background:linear-gradient(90deg,var(--blue),var(--sky))}

  /* ================= BUSINESS ================= */
  .biz{display:grid;gap:110px}
  .bizrow{
    display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:center;
  }
  .bizrow.rev{grid-template-columns:.85fr 1.15fr}
  .bizrow.rev .bizph{order:2}
  .bizph{position:relative;height:460px}
  .bizph .frame{
    position:absolute;inset:0;overflow:hidden;border-radius:4px;
  }
  .bizph .img{
    position:absolute;inset:-60px 0;background-size:cover;background-position:center;
    will-change:transform;
  }
  .bizph .frame::after{
    content:"";position:absolute;left:0;bottom:0;width:38%;height:5px;
    background:linear-gradient(90deg,var(--navy),var(--sky));
  }
  .bizph .no{
    position:absolute;top:clamp(-56px,-5vw,-34px);right:-14px;z-index:3;
    font-family:"Space Grotesk",sans-serif;font-weight:700;
    font-size:clamp(72px,9vw,128px);line-height:1;pointer-events:none;
    color:transparent;-webkit-text-stroke:1.5px rgba(46,107,198,.55);
  }
  .biztxt .cat{
    font-family:"JetBrains Mono",monospace;font-size:10.5px;letter-spacing:.3em;
    color:var(--blue);margin-bottom:16px;
  }
  .biztxt h3{
    font-size:clamp(24px,2.8vw,34px);font-weight:900;line-height:1.5;margin-bottom:20px;
  }
  .biztxt p{font-size:15px;color:var(--ink-soft);margin-bottom:24px}
  .biztxt ul{list-style:none;display:grid;gap:8px}
  .biztxt li{
    font-size:13.8px;color:var(--ink-soft);padding-left:20px;position:relative;
  }
  .biztxt li::before{
    content:"";position:absolute;left:0;top:13px;width:9px;height:9px;background:var(--sky);
    clip-path:polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  }

  /* ================= WORKS / 施工実績 ================= */
  .works{border-top:1px solid var(--line)}
  .work{
    position:relative;display:grid;grid-template-columns:auto 1fr auto;
    gap:34px;align-items:center;padding:32px 12px;
    border-bottom:1px solid var(--line);transition:background .35s;
  }
  .work:hover{background:linear-gradient(90deg,var(--mist),transparent 72%)}
  .work-no{
    font-family:"Space Grotesk",sans-serif;font-weight:700;font-size:clamp(28px,3.6vw,50px);
    line-height:1;color:transparent;-webkit-text-stroke:1.4px rgba(46,107,198,.5);
  }
  .work-cat{
    font-family:"JetBrains Mono",monospace;font-size:10px;letter-spacing:.28em;
    color:var(--blue);margin-bottom:9px;
  }
  .work-title{font-size:clamp(16px,1.8vw,21px);font-weight:900;line-height:1.55}
  .work-period{
    font-family:"JetBrains Mono",monospace;font-size:12.5px;letter-spacing:.06em;
    color:var(--ink-soft);white-space:nowrap;display:flex;align-items:center;gap:10px;
  }
  .work-period .dash{width:16px;height:1px;background:var(--sky);flex:0 0 auto}

  /* ================= PHILOSOPHY (climax) ================= */
  .creedsec{
    position:relative;overflow:hidden;color:#fff;
    background:linear-gradient(160deg,#060F20 0%, var(--navy) 60%, #1C4079 100%);
    padding:150px 0;
  }
  .creedsec::before{
    content:"";position:absolute;inset:0;opacity:.08;pointer-events:none;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='72' height='125' viewBox='0 0 72 125'%3E%3Cpath d='M36 0 L72 20.6 L72 61.9 L36 82.5 L0 61.9 L0 20.6 Z M36 125 L36 82.5' fill='none' stroke='white' stroke-width='1'/%3E%3C/svg%3E");
    background-size:72px 125px;
  }
  .creedsec .glowline{
    position:absolute;left:var(--spine-x);top:0;bottom:0;width:2px;
    background:linear-gradient(180deg,transparent,var(--glow),transparent);
    opacity:.55;
  }
  .creedsec .inner{position:relative;z-index:1;max-width:var(--maxw);margin:0 auto;padding:0 32px}
  .creedsec .cap{
    font-family:"JetBrains Mono",monospace;font-size:10.5px;letter-spacing:.34em;
    color:var(--sky);margin-bottom:52px;
  }
  .creedline{
    font-family:"Zen Old Mincho",serif;font-weight:900;
    font-size:clamp(30px,5.6vw,64px);line-height:1.7;letter-spacing:.02em;
    transition:opacity 1s ease, filter 1s ease, transform 1s ease;
  }
  body.js .creedline{opacity:.13;filter:blur(1px);transform:translateX(-14px)}
  body.js .creedline.lit{opacity:1;filter:none;transform:none}
  .creedline .k{color:var(--glow)}
  .creedtail{
    margin-top:60px;padding-top:38px;border-top:1px solid rgba(255,255,255,.18);
    max-width:640px;
  }
  .creedtail p{font-size:16px;color:rgba(255,255,255,.82);line-height:2.2}
  .creedtail .sign{
    margin-top:22px;font-family:"JetBrains Mono",monospace;font-size:11px;
    letter-spacing:.2em;color:var(--sky);
  }

  /* ================= COMPANY CARD ================= */
  .comcards{display:grid;grid-template-columns:1fr;gap:26px}
  .comcard{
    position:relative;height:340px;overflow:hidden;border-radius:4px;cursor:pointer;
    border:0;padding:0;text-align:left;font-family:inherit;background:var(--mist);
    display:block;text-decoration:none;
  }
  .comcard .img{
    position:absolute;inset:0;background-size:cover;background-position:center;
    transition:transform .8s ease;
  }
  .comcard:hover .img{transform:scale(1.06)}
  .comcard::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,transparent 30%, rgba(6,15,32,.82));
  }
  .comcard .t{
    position:absolute;left:26px;bottom:24px;z-index:2;color:#fff;
  }
  .comcard .t .en{
    font-family:"JetBrains Mono",monospace;font-size:9.5px;letter-spacing:.3em;color:var(--glow);
  }
  .comcard .t .jp{font-size:19px;font-weight:900;margin-top:4px}
  .comcard .arrow{
    position:absolute;right:22px;bottom:26px;z-index:2;color:#fff;
    font-family:"Space Grotesk",sans-serif;font-size:18px;
    transition:transform .3s;
  }
  .comcard:hover .arrow{transform:translateX(6px)}

  /* ================= RECRUIT ================= */
  .recband{
    position:relative;height:380px;overflow:hidden;border-radius:4px;
    display:block;text-decoration:none;color:inherit;cursor:pointer;
  }
  .recband .img{
    position:absolute;inset:-60px 0;background-size:cover;background-position:center 30%;
    will-change:transform;
  }
  .recband::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(90deg, rgba(6,15,32,.86), rgba(22,48,94,.55) 55%, rgba(22,48,94,.15));
  }
  .recband .inner{
    position:absolute;inset:0;z-index:2;display:flex;flex-direction:column;
    justify-content:center;padding:0 56px;color:#fff;
  }
  .recband .en{
    font-family:"JetBrains Mono",monospace;font-size:10.5px;letter-spacing:.3em;color:var(--glow);
  }
  .recband h3{font-size:clamp(22px,3vw,32px);font-weight:900;margin:12px 0 14px}
  .recband p{font-size:14px;color:rgba(255,255,255,.8);max-width:520px;margin-bottom:24px}
  .recband .more{
    display:inline-flex;align-items:center;gap:12px;background:none;border:0;cursor:pointer;text-decoration:none;
    font-family:"JetBrains Mono",monospace;font-size:11px;letter-spacing:.26em;color:#fff;padding:0;
  }
  .recband .more::after{content:"";width:44px;height:1px;background:#fff;transition:width .3s}
  .recband:hover .more::after{width:70px}

  /* ================= CONTACT (goal) ================= */
  .goal{position:relative;text-align:center;padding:150px 0 130px}
  .goal .endnode{
    width:20px;height:20px;margin:0 auto 34px;background:var(--blue);
    clip-path:polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    box-shadow:0 0 24px rgba(95,168,230,.8);
    animation:endpulse 2.4s ease-in-out infinite;
  }
  @keyframes endpulse{
    0%,100%{box-shadow:0 0 14px rgba(95,168,230,.5)}
    50%{box-shadow:0 0 30px rgba(95,168,230,.95)}
  }
  .goal h2{
    font-family:"Zen Old Mincho",serif;font-weight:900;
    font-size:clamp(26px,4vw,44px);letter-spacing:.06em;margin-bottom:16px;
  }
  .goal p{font-size:14.5px;color:var(--ink-soft);margin-bottom:36px}
  .goalbtn{
    display:inline-block;font-family:inherit;font-size:14px;font-weight:700;cursor:pointer;text-decoration:none;
    color:#fff;background:linear-gradient(115deg,var(--navy),var(--blue));
    border:0;padding:18px 58px;border-radius:100px;letter-spacing:.1em;
    transition:transform .25s, box-shadow .25s;
  }
  .goalbtn:hover{transform:translateY(-3px);box-shadow:0 18px 34px -14px rgba(22,48,94,.5)}

  /* ================= SUBPAGE COMMON ================= */
  .pagehero{
    position:relative;height:300px;overflow:hidden;display:flex;align-items:flex-end;
  }
  .pagehero .img{position:absolute;inset:0;background-size:cover;background-position:center}
  .pagehero::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(80deg, rgba(255,255,255,.95) 8%, rgba(255,255,255,.55) 46%, rgba(255,255,255,.05));
  }
  .pagehero .inner{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;width:100%;padding:0 32px 44px}

  .tbl{width:100%;border-collapse:collapse}
  .tbl th,.tbl td{
    text-align:left;padding:22px 6px;border-bottom:1px solid var(--line);
    font-size:15px;vertical-align:top;
  }
  .tbl th{width:200px;font-weight:700}
  .tbl td{color:var(--ink-soft)}

  .msg{max-width:760px}
  .msg .lead{
    font-family:"Zen Old Mincho",serif;font-weight:900;
    font-size:clamp(22px,3vw,32px);line-height:1.9;margin-bottom:36px;
  }
  .msg p{font-size:15px;color:var(--ink-soft);margin-bottom:18px}
  .msg .sign{margin-top:30px;font-size:14px;font-weight:700;color:var(--ink)}

  /* 代表あいさつ：右側だけに青い六角形の背景アクセント */
  #message{position:relative;overflow:hidden}
  #message .wrap{position:relative;z-index:1}
  .hexfield{
    position:absolute;top:0;right:0;bottom:0;width:46%;
    z-index:0;pointer-events:none;opacity:.5;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='97' viewBox='0 0 72 125'%3E%3Cpath d='M36 0 L72 20.6 L72 61.9 L36 82.5 L0 61.9 L0 20.6 Z M36 125 L36 82.5' fill='none' stroke='%232E6BC6' stroke-width='1.4'/%3E%3C/svg%3E");
    background-size:56px 97px;background-position:center;
    -webkit-mask-image:radial-gradient(135% 80% at 88% 48%, #000 30%, rgba(0,0,0,0) 80%);
    mask-image:radial-gradient(135% 80% at 88% 48%, #000 30%, rgba(0,0,0,0) 80%);
  }
  #message .hexfield{
    -webkit-mask-image:radial-gradient(135% 150% at 88% 48%, #000 30%, rgba(0,0,0,0) 85%);
    mask-image:radial-gradient(135% 150% at 88% 48%, #000 30%, rgba(0,0,0,0) 85%);
  }

  /* ================= CONTACT PAGE ================= */
  #cform{position:relative;overflow:hidden}
  #cform .wrap{position:relative;z-index:1}
  .cgrid{display:grid;grid-template-columns:1fr 1fr;gap:70px}
  .field{margin-bottom:24px}
  .field label{display:block;font-size:13px;font-weight:700;margin-bottom:9px;letter-spacing:.06em}
  .field input,.field textarea{
    width:100%;font-family:inherit;font-size:15px;color:var(--ink);
    padding:15px 16px;border:1px solid var(--line);border-radius:4px;
    background:#fff;transition:border-color .2s, box-shadow .2s;
  }
  .field input:focus,.field textarea:focus{
    outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(46,107,198,.12);
  }
  .field textarea{min-height:160px;resize:vertical}
  #sent{display:none;margin-top:18px;font-size:14px;font-weight:700;color:var(--blue)}
  .agree{
    display:flex;align-items:flex-start;gap:10px;
    margin:4px 0 22px;font-size:13.5px;color:var(--ink-soft);
    line-height:1.7;cursor:pointer;
  }
  .agree input{
    width:18px;height:18px;flex:0 0 auto;margin-top:5px;
    accent-color:var(--blue);cursor:pointer;
  }
  .agree a{color:var(--blue);text-underline-offset:3px}
  .hp{position:absolute!important;left:-9999px;width:1px;height:1px;overflow:hidden}

  /* ================= PRIVACY POLICY ================= */
  .policy{max-width:880px}
  .policy>p{font-size:14.5px;color:var(--ink-soft);margin-bottom:14px}
  .policy h3{
    position:relative;font-size:17px;font-weight:900;color:var(--ink);
    margin:40px 0 14px;padding-left:20px;
  }
  .policy h3::before{
    content:"";position:absolute;left:0;top:9px;width:9px;height:9px;background:var(--sky);
    clip-path:polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  }
  .policy ul{list-style:none;margin:0 0 14px;display:grid;gap:7px}
  .policy li{
    position:relative;font-size:14.5px;color:var(--ink-soft);padding-left:18px;
  }
  .policy li::before{
    content:"";position:absolute;left:2px;top:13px;width:5px;height:5px;
    background:var(--blue);border-radius:50%;
  }
  .policy a{color:var(--blue);text-underline-offset:3px}
  .policy-meta{
    margin-top:44px;padding-top:26px;border-top:1px solid var(--line);
    font-size:13.5px;color:var(--ink-soft);line-height:2;
  }
  .policy-meta p{margin-bottom:8px}

  /* ================= FOOTER ================= */
  footer{
    position:relative;color:#fff;overflow:hidden;
    background:linear-gradient(160deg,#060F20, var(--navy));
    padding:88px 0 48px;
  }
  footer::before{
    content:"";position:absolute;inset:0;opacity:.07;pointer-events:none;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='72' height='125' viewBox='0 0 72 125'%3E%3Cpath d='M36 0 L72 20.6 L72 61.9 L36 82.5 L0 61.9 L0 20.6 Z M36 125 L36 82.5' fill='none' stroke='white' stroke-width='1'/%3E%3C/svg%3E");
    background-size:72px 125px;
  }
  .foot{position:relative;z-index:1;text-align:center}
  .foot .co img{
    height:auto;width:min(420px,78%);display:block;margin:0 auto 30px;
  }
  .foot .philo-mini{
    font-family:"Zen Old Mincho",serif;font-weight:700;
    font-size:clamp(15px,3.6vw,19px);letter-spacing:.14em;
    color:rgba(255,255,255,.9);margin-bottom:34px;
  }
  .foot .co p{
    font-size:13px;color:rgba(255,255,255,.6);line-height:2.1;margin-bottom:34px;
  }
  .foot nav{
    display:flex;justify-content:center;flex-wrap:wrap;gap:8px 30px;
    padding-top:30px;border-top:1px solid rgba(255,255,255,.14);
  }
  .foot nav a{
    background:none;border:0;cursor:pointer;font-family:inherit;text-decoration:none;
    font-size:13px;color:rgba(255,255,255,.72);padding:2px 0;letter-spacing:.06em;
    transition:color .2s;
  }
  .foot nav a:hover{color:#fff}
  .cr{
    position:relative;z-index:1;margin-top:38px;text-align:center;
    font-family:"JetBrains Mono",monospace;font-size:10px;letter-spacing:.12em;
    color:rgba(255,255,255,.42);
  }


  /* ================= ELECTRIC FX ================= */
  body.js .fx-open{clip-path:inset(0 50% 0 50%);transition:clip-path 1.15s cubic-bezier(.72,0,.18,1)}
  body.js .fx-open.in{clip-path:inset(0 0 0 0)}
  body.js .fx-wave{clip-path:circle(0% at 50% 42%);transition:clip-path 1.4s cubic-bezier(.5,0,.2,1)}
  body.js .fx-wave.in{clip-path:circle(140% at 50% 42%)}
  .divider{position:relative;height:2px;max-width:var(--maxw);margin:0 auto;background:rgba(11,27,51,.07)}
  body.js .divider::before{
    content:"";position:absolute;left:0;top:0;height:100%;width:0;
    background:linear-gradient(90deg,var(--navy),var(--blue),var(--sky));
    transition:width 1.3s cubic-bezier(.6,0,.2,1);
  }
  body.js .divider.in::before{width:100%}
  body.js .divider.in::after{
    content:"";position:absolute;top:-3px;left:0;width:8px;height:8px;
    background:var(--glow);border-radius:50%;
    box-shadow:0 0 14px var(--glow);
    animation:sparkrun 1.3s cubic-bezier(.6,0,.2,1) forwards;
  }
  @keyframes sparkrun{
    0%{left:0;opacity:1}
    92%{opacity:1}
    100%{left:calc(100% - 8px);opacity:0}
  }
  .zap{position:absolute;inset:0;background:#fff;opacity:0;pointer-events:none;z-index:2}
  body.js .creedsec.in .zap{animation:zapflash .5s ease-out forwards}
  @keyframes zapflash{
    0%{opacity:0}
    18%{opacity:.32}
    100%{opacity:0}
  }
  @media (prefers-reduced-motion:reduce){
    body.js .fx-open,body.js .fx-wave{clip-path:none;transition:none}
    body.js .divider::before{width:100%;transition:none}
    body.js .divider.in::after{animation:none;opacity:0}
    body.js .creedsec.in .zap{animation:none}
  }




  /* ================= TYPOGRAPHY / WRAPPING ================= */
  .nb{display:inline-block}          /* 語のかたまりを途中で割らない */
  br.sp{display:none}                /* スマホ専用改行 */
  @media(max-width:640px){
    br.sp{display:inline}
    .work{grid-template-columns:auto 1fr;column-gap:16px;row-gap:12px;padding:26px 4px;align-items:start}
    .work-no{grid-row:1/2}
    .work-main{grid-column:2/3;grid-row:1/2}
    .work-period{grid-column:2/3;grid-row:2/3}
  }
  .tbl td, .msg p, .after .stack p, .biztxt p, .foot .co p{
    line-break:strict;
    overflow-wrap:break-word;
  }

  /* ================= CIRCULAR REVEAL STAGE ================= */
  .stage{height:220vh;position:relative}
  .stagepin{
    position:sticky;top:0;height:100vh;height:100svh;overflow:hidden;background:var(--ink);
  }
  .layer{position:absolute;inset:0}
  .before .slide{
    position:absolute;inset:0;background-size:cover;background-position:center;
    opacity:0;transform:scale(1.08);transition:opacity 2s ease;
  }
  .before .slide.on{opacity:1;animation:kenburns 9s ease-out forwards}
  .before .shade{
    position:absolute;inset:0;
    background:linear-gradient(160deg, rgba(6,15,32,.55), rgba(22,48,94,.35) 60%, rgba(6,15,32,.55));
  }
  .layer.after{
    background:var(--paper);
    clip-path:circle(calc(var(--reveal, 0) * 150vmax) at 50% 50%);
    display:flex;align-items:center;justify-content:center;
    will-change:clip-path;
  }
  body.noclip .layer.after{clip-path:none}
  .after .ghost{
    position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
    font-family:"Space Grotesk",sans-serif;font-weight:700;
    font-size:clamp(90px,20vw,300px);letter-spacing:-.02em;line-height:1;
    color:transparent;-webkit-text-stroke:1px rgba(46,107,198,.10);
    white-space:nowrap;pointer-events:none;user-select:none;
  }
  .after .stack{
    position:relative;text-align:center;max-width:720px;padding:0 28px;
  }
  .ph-head{
    font-family:"Zen Old Mincho",serif;font-weight:900;
    font-size:clamp(28px,6vw,52px);line-height:1.6;letter-spacing:.04em;
    margin:6px 0 26px;
  }
  .ph-head .grad{
    background:linear-gradient(100deg,var(--navy),var(--blue) 60%,var(--sky));
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .after .stack p{font-size:clamp(13.5px,3.6vw,16px);color:var(--ink-soft);margin-bottom:6px}
  .layer .cta{
    position:absolute;left:50%;bottom:14vh;transform:translateX(-50%);
    font-family:inherit;font-size:14px;font-weight:700;cursor:pointer;
    padding:16px 44px;border-radius:100px;white-space:nowrap;
    color:#fff;background:linear-gradient(115deg,var(--navy),var(--blue));
    border:1px solid transparent;transition:transform .25s, box-shadow .25s;
  }
  .layer .cta:hover{transform:translate(-50%,-3px);box-shadow:0 18px 34px -14px rgba(22,48,94,.5)}
  .layer .ghostbtn{
    background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.45);
    color:#fff;backdrop-filter:blur(6px);pointer-events:none;
  }
  .scrollhint{
    position:absolute;left:50%;bottom:26px;transform:translateX(-50%);z-index:5;
    font-family:"JetBrains Mono",monospace;font-size:10px;letter-spacing:.4em;
    color:rgba(255,255,255,.8);mix-blend-mode:difference;
    transition:opacity .5s;pointer-events:none;
  }
  .scrollhint::after{
    content:"";display:block;width:1px;height:26px;margin:10px auto 0;
    background:currentColor;animation:hintdrop 1.6s ease-in-out infinite;
  }
  @keyframes hintdrop{
    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}
  }
  .scrollhint.hide{opacity:0}
  @media (prefers-reduced-motion:reduce){
    .layer.after{clip-path:none}
    .before{display:none}
    .stage{height:100vh}
    .before .slide.on{animation:none;transform:none}
    .scrollhint{display:none}
  }


  /* 理念が開ききった後：スクロールに追従して静かに動く */
  .after .stack{
    transform:translateY(calc(var(--tail, 0) * -46px));
    opacity:calc(1 - var(--tail, 0) * .45);
    will-change:transform;
  }
  .after .ghost{
    transform:translate(-50%,-50%) scale(calc(1 + var(--tail, 0) * .12));
    opacity:calc(1 - var(--tail, 0) * .55);
  }
  .nexthint{
    position:absolute;left:50%;bottom:8vh;transform:translateX(-50%);z-index:6;
    display:flex;flex-direction:column;align-items:center;gap:9px;
    font-family:"JetBrains Mono",monospace;font-size:9px;letter-spacing:.34em;
    color:var(--ink-soft);pointer-events:none;opacity:var(--tail, 0);
  }
  .nexthint i{
    display:block;width:9px;height:9px;border-right:1.5px solid var(--blue);
    border-bottom:1.5px solid var(--blue);transform:rotate(45deg);
    animation:nextdrift 1.8s ease-in-out infinite;
  }
  @keyframes nextdrift{
    0%,100%{transform:rotate(45deg) translate(0,0);opacity:.5}
    50%{transform:rotate(45deg) translate(4px,4px);opacity:1}
  }
  @media (prefers-reduced-motion:reduce){
    .after .stack,.after .ghost{transform:none;opacity:1}
    .nexthint{display:none}
  }

  /* ================= SCROLL-LINKED PAGE TRANSITIONS ================= */
  /* 事業→経営哲学：濃紺がインクのように上から広がる */
  body.js .creedsec{will-change:clip-path}

  /* ================= RESPONSIVE ================= */
  @media(max-width:960px){
    :root{--spine-x:20px}
    #spine,.node{display:none}
    .menu{
      display:none;position:absolute;top:94px;left:0;right:0;
      flex-direction:column;align-items:stretch;
      background:#fff;border-bottom:1px solid var(--line);padding:14px 24px 22px;
    }
    .menu.open{display:flex}
    .menu a{text-align:left;padding:14px 4px}
    .menu a::after{left:4px;right:auto;width:34px}
    .burger{display:block}
    .sec{padding:84px 0}
    .bizrow,.bizrow.rev{grid-template-columns:1fr;gap:30px}
    .bizrow.rev .bizph{order:0}
    .bizph{height:300px;margin-top:44px}
    .bizph .no{top:-46px;right:-4px;font-size:74px;-webkit-text-stroke-width:1.2px}
    .creedsec{padding:96px 0}
    .comcard{height:240px}
    .recband{height:auto}
    .recband .img{inset:0}
    .recband .inner{position:relative;padding:52px 28px}
    .cgrid{grid-template-columns:1fr;gap:44px}
    .hexfield{display:none}
    .tbl th{width:110px;font-size:13.5px}
    .tbl td{font-size:14px}
    .logo img{height:52px}
    .foot .co img{width:82%}
    .foot nav{gap:8px 20px}
    .pagehero{height:220px}
  }
  @media (prefers-reduced-motion:reduce){
    .rv{opacity:1;transform:none;transition:none}
    #spine .fill::after{animation:none;display:none}
    .creedline{opacity:1;filter:none;transform:none;transition:none}
    #intro{display:none}
  }