.dummy-main{min-height:calc(100vh - 300px);background:#f5f8fb}
.dummy-hero{padding:90px 0 75px;background:linear-gradient(120deg,#07366f,#0b62ad);color:#fff}
.dummy-hero p{margin:0 0 10px;font-size:12px;font-weight:900;letter-spacing:.16em;color:#9ed9ff}
.dummy-hero h1{margin:0;font-size:clamp(38px,5vw,60px)}
.dummy-body{padding:80px 0}
.dummy-box{background:#fff;border:1px solid #e1e7ee;padding:45px;box-shadow:0 10px 30px rgba(22,47,77,.06)}
.dummy-box h2{margin:0 0 14px;color:#102a4a;font-size:30px}
.dummy-box p{margin:0;color:#657080}
.dummy-back{display:inline-block;margin-top:25px;color:#0b69c7;font-weight:800;text-decoration:underline;text-underline-offset:5px}

/* preparing navigation items */
.nav-preparing{display:inline-flex;align-items:center;gap:5px;opacity:.72;cursor:default}
.nav-preparing small{font-size:.62em;font-weight:800;color:#c62828;white-space:nowrap}

/* v13: align preparing nav items with normal navigation links */
.nav-preparing{
  font:inherit;
  font-size:inherit;
  font-weight:inherit;
  line-height:inherit;
  letter-spacing:inherit;
  vertical-align:middle;
}
.nav-preparing small{
  font-size:9px;
  line-height:1;
}

/* v14: keep each preparing menu item as one normal nav item */
.nav-preparing{
  display:flex !important;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:1px;
  white-space:nowrap;
}
.nav-preparing small{
  display:block;
  font-size:8px;
  line-height:1;
}

/* v15: dropdown preparing items align with 授業紹介 */
.nav-preparing{
  display:flex !important;
  flex-direction:row !important;
  align-items:center !important;
  justify-content:flex-start !important;
  width:100%;
  box-sizing:border-box;
  text-align:left !important;
  white-space:nowrap;
}
.nav-preparing small{
  display:inline-block;
  margin-left:7px;
  font-size:8px;
  line-height:1;
}

/* v16: preparing entries exactly match normal dropdown item typography/alignment */
.nav-preparing{
  display:block !important;
  width:auto !important;
  margin:0 !important;
  padding:14px 22px !important;
  box-sizing:border-box !important;
  color:#1d2630 !important;
  font-size:16px !important;
  font-weight:400 !important;
  line-height:1.4 !important;
  letter-spacing:0 !important;
  text-align:left !important;
  white-space:nowrap !important;
  border-top:1px solid #e5e9ed;
}
.nav-preparing small{
  display:inline !important;
  margin-left:7px !important;
  padding:0 !important;
  color:#d84b4b !important;
  font-size:9px !important;
  font-weight:800 !important;
  line-height:1 !important;
  vertical-align:middle !important;
}

/* v17: slightly reduce preparing dropdown item text */
.nav-preparing{
  font-size:15px !important;
}

/* v18: reduce preparing dropdown item text a little more */
.nav-preparing{
  font-size:14px !important;
}

.footer-preparing{color:inherit;opacity:.72;cursor:default}