.ab .nw { display: inline-block; }   
.ab-hero { position: relative; margin: calc(-90px - env(safe-area-inset-top)) -16px 0; padding: calc(118px + env(safe-area-inset-top)) 26px 46px; overflow: hidden; }
.ab-scene { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(214, 233, 245, .55), rgba(250, 248, 244, 0) 46%), url(top_hero_nago.webp) right -50px top -40px / 112% auto no-repeat; opacity: .38; -webkit-mask-image: linear-gradient(to bottom, #000 20%, transparent 40%); mask-image: linear-gradient(to bottom, #000 20%, transparent 40%); pointer-events: none; }
.ab-hero > :not(.ab-scene) { position: relative; }
.ab-eyebrow { margin: 0; font-size: 12px; font-weight: 700; letter-spacing: .42em; color: #b08a3e; }
.ab-mark { margin: 8px 0 0; font: 800 46px/1 "Avenir Next", "Montserrat", "Segoe UI", "Arial Black", system-ui, sans-serif; letter-spacing: .1em; color: #1f2a3a; }
.ab-mark em, .ab .fl em { font-style: normal; color: #c6a15b; }
.ab-intro { margin: 64px 0 0; }
.ab-intro p { margin: 0 0 14px; font-size: 18px; line-height: 1.6; letter-spacing: .08em; color: #3a3d44; }
.ab-intro p:first-child { font-size: 21px; font-weight: 700; color: #15171c; margin-bottom: 18px; }
.ab-but { margin: 44px 0 0; font-size: 22px; line-height: 1.65; font-weight: 800; letter-spacing: .03em; color: #15171c; }
.ab-but::before { content: ""; display: block; width: 34px; height: 2px; margin-bottom: 18px; border-radius: 2px; background: #c6a15b; }
.ab-idea { padding: 34px 10px 8px; }
.ab .fl { font: 800 1.02em/1 "Avenir Next", "Montserrat", "Segoe UI", system-ui, sans-serif; letter-spacing: .05em; color: #1f2a3a; }
.ab-def { margin: 0; padding: 4px 0 4px 18px; border-left: 3px solid #d9bf86; font-size: 18.5px; line-height: 1.95; letter-spacing: .03em; color: #26292f; }
.ab-def strong { font-weight: 800; color: #15171c; background: linear-gradient(transparent 64%, rgba(214, 170, 80, .26) 64%); }
.ab-flow { position: relative; list-style: none; margin: 58px 0 0; padding: 0 0 0 30px; }
.ab-flow::before { content: ""; position: absolute; left: 8px; top: 12px; bottom: 14px; width: 2px; border-radius: 2px; background: linear-gradient(#e4cf9f, #c6a15b); }   
.ab-flow li { position: relative; margin: 0 0 26px; font-size: 17px; line-height: 1.6; letter-spacing: .05em; color: #2a2d33; }
.ab-flow li::before { content: ""; position: absolute; left: -27px; top: .5em; width: 10px; height: 10px; border-radius: 50%; background: #fff; border: 2px solid #c6a15b; box-sizing: border-box; }
.ab-flow li:last-child { margin-bottom: 0; }
.ab-flow li:last-child::before { background: #c6a15b; }
.ab-river { margin: 30px 0 0; font-size: 19px; line-height: 1.6; font-weight: 700; letter-spacing: .05em; color: #15171c; }
.ab-not { margin: 76px 0 0; font-size: 16px; line-height: 1.8; letter-spacing: .04em; color: #5c5c62; }
.ab-peak { margin: 14px 0 0; font-size: 27px; line-height: 1.6; font-weight: 900; letter-spacing: .02em; color: #15171c; }
.ab-peak em { font-style: normal; background: linear-gradient(transparent 62%, rgba(214, 170, 80, .38) 62%); }
.ab-founder { margin: 84px 0 0; text-align: center; }
.ab-role { margin: 0; font-size: 11.5px; font-weight: 700; letter-spacing: .32em; color: #8e8e93; }
.ab-sign { margin: 6px -14px 0; }
.ab-sign-svg { display: block; width: 100%; max-width: 420px; height: auto; margin: 0 auto; stroke: none; fill: none; }   
.ab-sign .write { opacity: 0; }
.ab-sign.play .write { opacity: 1; }
.ab-sign .done { transition: opacity .45s ease; }
.ab-sign .spark { opacity: 0; transform-box: fill-box; transform-origin: center; }
.ab-sign .st { stroke-dasharray: 1 1; stroke-dashoffset: 1; }
.ab-sign.play .done { opacity: 0; }
.ab-sign.play .s1 { animation: abW .34s cubic-bezier(.4, 0, .3, 1) .55s forwards; }
.ab-sign.play .s2 { animation: abW .38s cubic-bezier(.4, 0, .3, 1) .95s forwards; }
.ab-sign.play .s3 { animation: abW .3s cubic-bezier(.4, 0, .3, 1) 1.38s forwards; }
.ab-sign.play .s4 { animation: abW .36s cubic-bezier(.4, 0, .4, 1) 1.72s forwards; }
.ab-sign.play .s5 { animation: abW .42s cubic-bezier(.55, 0, .9, .6) 2.2s forwards; }   
.ab-sign.play .spark { animation: abSpk 1s ease-out 2.58s; }
.ab-sign.instant .done { transition: none; }
@keyframes abW { to { stroke-dashoffset: 0; } }
@keyframes abSpk { 0% { opacity: 0; transform: scale(.3); } 30% { opacity: 1; transform: scale(1); } 100% { opacity: 0; transform: scale(.7) rotate(25deg); } }
@media (prefers-reduced-motion: reduce) { .ab-sign .write, .ab-sign .spark { display: none; } .ab-sign .done { opacity: 1 !important; transition: none; } }
.ab-contact { margin: 64px 0 0; text-align: center; }
.ab-ch { margin: 0; font-size: 11px; font-weight: 700; letter-spacing: .32em; color: #8e8e93; }
.ab-contact dl { display: inline-grid; grid-template-columns: auto auto; column-gap: 16px; row-gap: 6px; margin: 14px 0 0; text-align: left; }
.ab-contact dl > div { display: contents; }
.ab-contact dt { padding-top: 9px; font-size: 10.5px; font-weight: 700; letter-spacing: .2em; color: #a3a3a8; }
.ab-contact dd { margin: 0; }
.ab-contact a { display: inline-flex; align-items: center; gap: 7px; min-height: 36px; font-size: 14px; letter-spacing: .03em; color: #8a6516; }
.ab-contact small { display: block; margin-top: -4px; font-size: 11.5px; color: #a3a3a8; letter-spacing: .03em; }
.ab-lic { width: 8px; height: 8px; border-radius: 50%; background: #06c755; opacity: .85; }   
.ab-foot { display: flex; justify-content: flex-start; gap: 12px; margin: 40px 0 28px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 13.5px; }
.ab-foot a { color: #8a6516; font-weight: 700; }
@media (max-width: 380px) {
  .ab-hero { padding-left: 22px; padding-right: 22px; }
  .ab-mark { font-size: 42px; }
  .ab-intro p:first-child { font-size: 20px; }
  .ab-but { font-size: 20.5px; }
  .ab-def { font-size: 17.5px; }
  .ab-peak { font-size: 25px; }
}