/* ===== Extracted from inline <style> blocks in overview.html ===== */


    :root{
      --txt:#e9eef6; --muted:#a9b3c3;
      --shadow: 0 10px 30px rgba(0,0,0,.35);
      --radius-lg: 20px;
      --navH: 72px; --navH-small: 56px;
      --navAlpha: .22; --navAlphaSolid: .86;
    }
    html[data-theme="corporate"]{
      --bg1:#0b1020; --bg2:#0f1b36;
      --acc1:#3ad7bd; --acc2:#6aa4ff;
      --navBg: rgba(0,0,0,var(--navAlpha));
      --navBgSolid: rgba(6,10,20,var(--navAlphaSolid));
    }
    *{box-sizing:border-box}
    html,body{height:100%}
    body{ margin:0; color:var(--txt); background:linear-gradient(180deg,var(--bg1),var(--bg2)); font-weight:500; }

    /* ===== Global Nav（index.htmlと同仕様） ===== */
    .g-nav{ position:fixed; inset-inline:0; top:0; z-index:100; height:var(--navH);
      display:flex; align-items:center; justify-content:center; background:var(--navBg);
      border-bottom:1px solid rgba(255,255,255,.18); backdrop-filter:saturate(115%) blur(6px);
      transition: height .28s ease, background-color .28s ease, border-color .28s ease; }
    .g-wrap{ width:100%; max-width:min(1380px, 96vw); display:flex; align-items:center; justify-content:space-between; gap:20px; padding:0 10px; }
    .brand{ display:flex; align-items:center; gap:10px; text-decoration:none; color:#fff; white-space:nowrap; }
    .brand img{ height:28px; width:auto; display:block; }
    .brand .name{ font-weight:800; font-size:clamp(12px, 1.9vw, 16px); white-space:nowrap; }

    .nav-right{ display:flex; align-items:center; gap:18px; flex-wrap: nowrap; } /* 折り返し防止 */
    .nav-links{ display:flex; align-items:center; gap: clamp(18px, 3.2vw, 32px); }
    .nav-links > a, .nav-links > .dd > a{
      color:#e8f3ff; text-decoration:none; font-weight:800; font-size: 13px;
      padding:6px 8px; border-radius:8px; border:1px solid transparent;
    }
    .nav-links > a:hover, .nav-links > .dd:hover > a{ border-color:rgba(255,255,255,.2); background:rgba(255,255,255,.06); }

    .dd{ position:relative; }
    .dd-menu{
      position:absolute; top: calc(100% + 8px); left:0; min-width:240px; max-width: 80vw;
      max-height:min(60vh,520px); overflow:auto; -webkit-overflow-scrolling:touch;
      background:var(--navBgSolid); border:1px solid rgba(255,255,255,.14); border-radius:12px;
      padding:8px; display:none; box-shadow:var(--shadow);
    }
    .dd.open .dd-menu{ display:block; }
    .dd-menu a{ display:block; padding:10px 12px; border-radius:10px; color:#e8f3ff; text-decoration:none; font-weight:800; }
    .dd-menu a:hover{ background:rgba(255,255,255,.06); }

    .lang-switch{ display:flex; gap:8px; }
    .lang-switch a{ color:#cfe1ff; text-decoration:none; font-weight:800; font-size:13px; opacity:.9; padding:6px 10px; border-radius:8px; border:1px solid rgba(255,255,255,.2); }
    .lang-switch a:hover{ background:rgba(255,255,255,.06); }

    .nav-cta{ display:inline-flex; align-items:center; gap:.6em; padding:10px 12px; border-radius:12px; text-decoration:none; border:1px solid transparent; font-weight:800; letter-spacing:.02em; background:linear-gradient(135deg,var(--acc1),var(--acc2)); color:#071018; box-shadow:var(--shadow); white-space:nowrap; }
    .tel-cta{ display:none; }
    .sp-toggle{ display:none; }

    .g-nav.shrink{ height:var(--navH-small); background:var(--navBgSolid); border-color: rgba(255,255,255,.12); }

    /* Drawer（SP：index.html同等の挙動） */
    .drawer{ display:none; }
    @media (max-width: 960px){
      .nav-links, .lang-switch, .nav-cta{ display:none; }
      .tel-cta{ display:inline-flex; }
      .sp-toggle{ display:inline-flex; align-items:center; gap:6px; }
      .brand{ min-width: 0; }
      .brand .name{ max-width: 44vw; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
      @media (max-width: 520px){ .brand .name{ display:none; } }
      .sp-toggle button{
        background: transparent; border:1px solid rgba(255,255,255,.25); color:#fff; padding:8px 12px; border-radius:10px; font-weight:800;
        display:inline-flex; align-items:center; white-space:nowrap; line-height:1;
      }
      .drawer{ position:fixed; inset:0; background:rgba(0,0,0,.45); z-index:99; display:none; }
      .drawer-panel{ position:fixed; top:0; right:0; height:100%; width:min(86vw, 320px);
        background:var(--navBgSolid); border-left:1px solid rgba(255,255,255,.16);
        padding:16px; padding-top:max(16px, env(safe-area-inset-top));
        padding-right:max(16px, env(safe-area-inset-right));
        padding-bottom:max(16px, env(safe-area-inset-bottom));
        overflow-y:auto; -webkit-overflow-scrolling:touch; overscroll-behavior: contain;
        transform: translateX(100%); transition: transform .28s ease; box-shadow:-20px 0 40px rgba(0,0,0,.35); }
      .drawer.show{ display:block; }
      .drawer.show .drawer-panel{ transform: translateX(0); }
      .drawer a{ color:#e8f3ff; text-decoration:none; font-weight:700; padding:12px 10px; border-bottom:1px solid rgba(255,255,255,.12); display:block; }
      .drawer a:last-child{ border-bottom: 0; }
      .drawer .group-title{ margin:8px 0 6px; color:#9fb8ff; font-weight:800; }
      .drawer .close{ position:sticky; top:0; text-align:right; padding:6px 0 8px; background: linear-gradient(180deg, rgba(6,10,20,.95), rgba(6,10,20,.75)); z-index:1; }
      .drawer .close button{ border:1px solid rgba(255,255,255,.25); background:transparent; color:#fff; padding:8px 10px; border-radius:8px; }

      /* アコーディオン（index.html同様にJSで生成） */
      .acc-head{ display:flex; align-items:center; justify-content:space-between; gap:8px; margin:6px 0 2px; }
      .acc-link{ display:inline-flex; align-items:center; padding:12px 10px; border:1px solid rgba(255,255,255,.18);
        border-radius:10px; background:rgba(255,255,255,.06); font-weight:800; flex:1 1 auto; }
      .acc-link:hover{ background: rgba(255,255,255,.10); }
      .acc-btn{ width:38px; height:38px; display:inline-flex; align-items:center; justify-content:center;
        border:1px solid rgba(255,255,255,.18); border-radius:10px; background:rgba(255,255,255,.06); color:#e8f3ff; font-weight:800; }
      .acc-btn .chev{ transition: transform .2s ease }
      .acc-btn[aria-expanded="true"] .chev{ transform: rotate(90deg) }
      .acc-panel{ display:none }
      .acc-panel.open{ display:block }

      /* === サブメニュー“光る演出”（シマー） === */
      .drawer .acc-panel a{ position: relative; overflow: hidden; }
      .drawer .acc-panel a::before{ content:""; position:absolute; inset:-1px; border-radius:10px;
        background: linear-gradient(135deg, rgba(61,215,189,0), rgba(61,215,189,.30), rgba(106,164,255,.30), rgba(61,215,189,0));
        opacity:0; transition: opacity .18s ease; pointer-events:none; }
      .drawer .acc-panel a::after{ content:""; position:absolute; top:-120%; bottom:-120%; left:-30%; width:40%;
        transform: translateX(-120%) rotate(20deg); background: linear-gradient(90deg, transparent, rgba(255,255,255,.35), transparent);
        mix-blend-mode: screen; opacity:0; pointer-events:none; }
      .drawer .acc-panel a:hover::before{ opacity:.7; }
      .drawer .acc-panel a:hover::after{ opacity:1; animation: submenuShimmer 1.0s ease; }
      @keyframes submenuShimmer{ 0%{ transform: translateX(-120%) rotate(20deg); opacity:0; }
        10%{ opacity:.7; } 100%{ transform: translateX(220%) rotate(20deg);  opacity:0; } }
      @media (prefers-reduced-motion: reduce){ .drawer .acc-panel a:hover::after{ animation:none; opacity:.15; } }
    }
      /* --- スマホ時: 電話・メニューの改行防止 --- */
      .tel-cta,
      .sp-toggle button{
        white-space: nowrap;
        word-break: keep-all;
      }
      .sp-toggle,
      .tel-cta{
        flex: 0 0 auto;  /* 幅の圧縮を防ぐ */
      }

      /* --- iPhone調整: ブランド名が「電話」「メニュー」と重ならないようにする --- */
      .brand{ min-width: 0; }
      .brand .name{
        display:block;
        max-width:52vw;        /* 必要に応じて 48〜56vw で微調整可 */
        overflow:hidden;
        white-space:nowrap;
        text-overflow:ellipsis;
      }
    /* ===== Hero ===== */
    html{ scroll-padding-top: var(--navH); }
    @media (max-width:960px){ html{ scroll-padding-top: var(--navH-small); } }
    .hero{ position:relative; min-height: 42svh; display:grid; place-items:center; padding-top: calc(var(--navH) + 16px);
      background: linear-gradient(180deg, rgba(15,27,54,.7), rgba(15,27,54,.3)), url("https://www.nikko-kikai.co.jp/img/profile3.png") center/cover no-repeat;
      border-bottom:1px solid rgba(255,255,255,.12); overflow:hidden; }
    .hero .title{ margin:0; font-size: clamp(22px, 4.4vw, 40px); font-weight:900; text-shadow:0 2px 12px rgba(0,0,0,.45); }
    .hero .lead{ margin:.4em 0 0; color:var(--muted); }

    /* ===== Content ===== */
    .section{ max-width:min(1100px, 92vw); margin: clamp(28px, 6vw, 72px) auto; }
    .sec{ margin-bottom: clamp(24px, 3vw, 36px); }
    .box{ background:rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.15); border-radius:16px; padding:18px; box-shadow:var(--shadow); }

    .h3{ margin:0 0 10px; font-weight:800; font-size: clamp(18px, 2.8vw, 24px); border-left: 3px solid rgba(255,255,255,.35); padding-left: 10px; }

    /* ▼ サイズ微調整（少しだけ小さく） */
    .msg{ background: linear-gradient(145deg, rgba(240,248,255,.85), rgba(255,255,255,.85));
      border-left: 2px solid #89b6ff; border-radius: 10px; padding: 18px; color:#1c2636;
      font-size: .96rem; }
    .msg p{ margin: .8em 0; line-height: 1.85; }
    .msg .author{ text-align: right; margin-top: 1em; font-style: italic; color:#48556a; font-size: .92rem; }

    .timeline{ display:grid; grid-template-columns: 150px 1fr; gap: 8px 10px; align-items:start; }
    .tl-year{ font-weight: 900; color:#9fd2ff; padding-top:.4em; font-size: .95rem; }
    .tl-txt{ background:rgba(255,255,255,.9); color:#222; padding:.8em 1em; border-left: 3px solid #8fb4ff; border-radius:6px; line-height:1.6; font-size: .95rem; }
    @media (max-width: 768px){ .timeline{ grid-template-columns: 1fr; } .tl-year{ padding-top:0; } }

    .company{ display:flex; flex-wrap:wrap; gap: 16px; font-size: .96rem; }
    .c-card{ flex: 1 1 calc(50% - 16px); background:rgba(255,255,255,.96); border: 1px solid rgba(0,0,0,.08);
      border-left: 3px solid #8fb4ff; border-radius:6px; padding:.8em 1em; color:#1c2636; }
    .c-card strong{ display:block; font-size:.9em; color:#5a6a82; margin-bottom:4px; }
    .c-card span{ font-size:1.0em; color:#111; }
    @media (max-width: 600px){ .c-card{ flex: 1 1 100%; } }

    footer{ color:#9fb0c0; text-align:center; padding:40px 12px 60px; }
  

/* ---- Next block ---- */


/* === Drawer under fixed nav (SP): offset slightly lower than nav height === */
@media (max-width: 960px){
  .drawer{ z-index: 90 !important; }
  .drawer-panel{
    top: calc(var(--navH-small, 56px) + 8px) !important;
    height: calc(100% - (var(--navH-small, 56px) + 8px)) !important;
    padding-top: max(8px, env(safe-area-inset-top));
  }
}

/* === Hover glow for top-level nav items (desktop) === */
.nav-links > .dd > a{
  position: relative;
  overflow: hidden;
}
.nav-links > .dd > a::before{
  content:"";
  position:absolute; inset:-1px;
  border-radius:10px;
  background: linear-gradient(135deg,
    rgba(61,215,189,0),
    rgba(61,215,189,.35),
    rgba(106,164,255,.35),
    rgba(61,215,189,0));
  opacity:0;
  transition: opacity .18s ease;
  pointer-events:none;
}
.nav-links > .dd:hover > a::before{ opacity:.75; }
.nav-links > .dd > a::after{
  content:"";
  position:absolute;
  top:-120%; bottom:-120%; left:-30%;
  width:40%;
  transform: translateX(-120%) rotate(20deg);
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.35), transparent);
  mix-blend-mode: screen;
  opacity:0;
  pointer-events:none;
}
.nav-links > .dd:hover > a::after{
  opacity:1;
  animation: navShimmer 1.0s ease;
}
@keyframes navShimmer{
  0%{ transform: translateX(-120%) rotate(20deg); opacity:0; }
  10%{ opacity:.7; }
  100%{ transform: translateX(220%) rotate(20deg); opacity:0; }
}

/* === Hover glow for drawer headers (SP) === */
@media (max-width: 960px){
  .acc-link{
    position: relative;
    overflow: hidden;
  }
  .acc-link::before{
    content:"";
    position:absolute; inset:-1px;
    border-radius:10px;
    background: linear-gradient(135deg,
      rgba(61,215,189,0),
      rgba(61,215,189,.30),
      rgba(106,164,255,.30),
      rgba(61,215,189,0));
    opacity:0; transition: opacity .18s ease; pointer-events:none;
  }
  .acc-link::after{
    content:"";
    position:absolute; top:-120%; bottom:-120%; left:-30%; width:40%;
    transform: translateX(-120%) rotate(20deg);
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.35), transparent);
    mix-blend-mode: screen; opacity:0; pointer-events:none;
  }
  .acc-link:hover::before{ opacity:.7; }
  .acc-link:hover::after{ opacity:1; animation: drawerShimmer 1.0s ease; }
  @keyframes drawerShimmer{
    0%{ transform: translateX(-120%) rotate(20deg); opacity:0; }
    10%{ opacity:.7; }
    100%{ transform: translateX(220%) rotate(20deg); opacity:0; }
  }
}

.white-box {
  background: #ffffff !important;
  color: #111;
  border: 1px solid rgba(0,0,0,.1);
}
.white-box .h3 {
  border-left: 3px solid #6aa4ff;
  color: #111;
}



/* ---- Next block ---- */


.dark-box {
  background: rgba(255,255,255,0.05) !important;
  border: 1px solid rgba(255,255,255,0.15);
  color: #ffffff;
}
.dark-box .h3 { color: #ffffff; border-left: 3px solid rgba(255,255,255,.35); }
.dark-box p, .dark-box span, .dark-box li, .dark-box strong { color: #ffffff; }


/* ---- Next block ---- */


.dark-box .msg {
  background: rgba(255,255,255,0.05) !important;
  border-left: 2px solid #6aa4ff !important;
  color: #ffffff !important;
}
.dark-box .msg p,
.dark-box .msg .author {
  color: #ffffff !important;
}


/* ---- Next block ---- */


.dark-box .timeline .tl-txt {
  background: rgba(255,255,255,0.05) !important;
  color: #ffffff !important;
  border-left: 3px solid #6aa4ff !important;
}
.dark-box .timeline .tl-year {
  color: #cfe1ff !important;
}
.dark-box .company .c-card {
  background: rgba(255,255,255,0.05) !important;
  border-left: 3px solid #6aa4ff !important;
  color: #ffffff !important;
}
.dark-box .company .c-card strong,
.dark-box .company .c-card span {
  color: #ffffff !important;
}


/* ---- Next block ---- */


    footer .copyright {
      font-size: 10px;
      color: #ffffff;
      text-align: center;
      margin: 10px 0;
    }