/* 30秒の物語から既存のファーストビューへつなぐ導入。 */
html.intro-is-open,html.intro-is-open body{overflow:hidden}
.hero h1[tabindex="-1"]:focus{outline:none}
.intro-launch{display:inline-flex;align-items:center;gap:9px;border:0;border-bottom:1px solid #ffffff65;border-radius:0;background:transparent;color:#fff;padding:2px 0 5px;font-size:12px;line-height:1.6;font-weight:400;letter-spacing:.03em;text-align:left}
.intro-launch span{font-size:10px;color:var(--yellow)}
.intro-launch:hover{border-bottom-color:var(--yellow)}
.intro-launch[hidden],#intro-story [hidden]{display:none!important}
#intro-story{position:fixed;inset:0;box-sizing:border-box;width:100%;height:100vh;height:100dvh;max-width:none;max-height:none;margin:0;padding:0;border:0;border-radius:0;background:#0646d9;color:#fff;overflow:hidden;box-shadow:none}
#intro-story::backdrop{background:transparent;backdrop-filter:none}
#intro-story[open]{display:block}
#intro-story .intro-video{display:block;position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:#0646d9}
#intro-story .intro-topbar{position:absolute;z-index:3;top:0;left:0;right:0;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:calc(24px + env(safe-area-inset-top,0px)) 30px 50px;background:linear-gradient(#051b4166,transparent)}
#intro-story .intro-brand{margin:0;font-size:13px;font-weight:800;letter-spacing:.12em;line-height:1.5;white-space:nowrap}
#intro-story .intro-brand span{color:var(--yellow);margin-inline:8px}
#intro-story button{font:inherit;font-size:12px;line-height:1.5;border:1px solid #ffffff75;border-radius:999px;background:#092e69b8;color:#fff;padding:10px 16px;min-height:42px;cursor:pointer;touch-action:manipulation}
#intro-story button:hover{background:#073372}
#intro-story button:focus-visible{outline:3px solid var(--yellow);outline-offset:4px}
#intro-story .intro-skip{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;font-weight:800}
#intro-story .intro-caption{position:absolute;z-index:2;left:24px;right:24px;bottom:max(16%,110px);width:fit-content;max-width:calc(100% - 48px);margin:0 auto;padding:10px 22px;border-radius:4px;background:#07224dc9;color:#fff;font-size:clamp(17px,2.3vw,31px);font-weight:800;letter-spacing:.025em;line-height:1.7;text-align:center;text-wrap:balance}
#intro-story .intro-controls{position:absolute;z-index:3;bottom:0;left:0;right:0;display:flex;align-items:center;justify-content:space-between;gap:30px;padding:45px 30px calc(24px + env(safe-area-inset-bottom,0px));background:linear-gradient(transparent,#041b467a)}
#intro-story .intro-controls-buttons{display:flex;gap:10px;flex-shrink:0}
#intro-story .intro-progress{display:flex;align-items:center;gap:16px;width:300px;max-width:40%;font-size:11px;font-variant-numeric:tabular-nums;letter-spacing:.06em}
#intro-story .intro-progress progress{display:block;flex:1;min-width:0;height:3px;border:0;border-radius:99px;background:#ffffff45;color:var(--yellow);accent-color:var(--yellow);appearance:none}
#intro-story progress::-webkit-progress-bar{background:#ffffff45;border-radius:99px}
#intro-story progress::-webkit-progress-value{background:var(--yellow);border-radius:99px}
#intro-story progress::-moz-progress-bar{background:var(--yellow);border-radius:99px}
#intro-story [data-intro-time]{white-space:nowrap}
#intro-story .intro-fallback{position:absolute;z-index:4;left:50%;top:50%;transform:translate(-50%,-50%);width:calc(100% - 48px);max-width:440px;padding:25px;border:1px solid #ffffff55;border-radius:12px;background:#06296cef;text-align:center}
#intro-story .intro-fallback p{margin:0;font-size:14px;line-height:1.9}
#intro-story .intro-start{display:block;width:100%;margin-top:18px;background:var(--yellow);border-color:var(--yellow);color:var(--ink);font-size:15px;font-weight:800}
#intro-story .intro-start:hover{background:#fff373}
#intro-story .intro-fallback-skip{display:inline-block;margin-top:12px;border:0;background:transparent;text-decoration:underline;text-underline-offset:5px}
#intro-story .intro-whiteout{position:absolute;z-index:5;inset:0;background:#fffefa;opacity:0;pointer-events:none;transition:opacity .62s ease}
#intro-story.is-leaving{pointer-events:none;animation:intro-reveal-lp .6s ease .62s forwards}
#intro-story.is-leaving .intro-whiteout{opacity:1}
#intro-story.is-skipping{pointer-events:none;animation:intro-reveal-lp .2s ease forwards}
@keyframes intro-reveal-lp{from{opacity:1}to{opacity:0}}
@media(min-width:701px) and (max-width:900px){.hero-actions{flex-wrap:wrap}}
@media(max-width:700px){
  .hero-actions .intro-launch{font-size:11px}
  #intro-story,#intro-story .intro-video{background:#111923}
  #intro-story .intro-topbar{gap:10px;padding:calc(16px + env(safe-area-inset-top,0px)) 16px 35px}
  #intro-story .intro-brand{font-size:10px;letter-spacing:.055em}
  #intro-story .intro-brand span{margin-inline:4px}
  #intro-story .intro-skip{font-size:10px;gap:7px;padding:9px 12px;min-height:40px}
  #intro-story .intro-caption{left:16px;right:16px;max-width:calc(100% - 32px);top:min(calc(50% + 28.125vw + 22px),calc(100% - 205px));bottom:auto;font-size:clamp(15px,4.6vw,23px);padding:8px 14px}
  #intro-story .intro-controls{flex-direction:column;align-items:stretch;gap:17px;padding:35px 20px calc(19px + env(safe-area-inset-bottom,0px))}
  #intro-story .intro-controls-buttons{justify-content:center}
  #intro-story .intro-controls-buttons button{font-size:11px}
  #intro-story .intro-progress{width:100%;max-width:none;font-size:10px;gap:13px}
}
@media(max-height:450px){#intro-story .intro-topbar{padding-top:10px;padding-bottom:15px}#intro-story .intro-controls{padding-top:15px;padding-bottom:10px;flex-direction:row;gap:20px}#intro-story .intro-controls-buttons button{padding:7px 12px;min-height:34px}#intro-story .intro-progress{max-width:35%}#intro-story .intro-caption{top:auto;bottom:66px;font-size:17px;padding:4px 14px}#intro-story .intro-fallback{padding:15px;max-width:390px}#intro-story .intro-fallback p{font-size:12px}}
@media(prefers-reduced-motion:reduce){#intro-story,#intro-story .intro-whiteout{animation:none!important;transition:none!important}}