@charset "UTF-8";
/* ============================================================
   NEL innovation 3D — front-page 固有スタイル（design: nel-3d.html）
   共通（header/footer/generic/背景）は main.css。
   ============================================================ */

/* intro（粒がロゴに結像→海へ溶ける） */
.hero .si,.sdots,.scrollcue{transition:opacity .6s ease,transform .6s ease}
html.pre-intro .hero .si,body.intro .hero .si{opacity:0!important;transform:translateY(26px);visibility:hidden}
html.pre-intro .sdots,html.pre-intro .scrollcue,body.intro .sdots,body.intro .scrollcue{opacity:0!important;visibility:hidden}
#hdr{transition:opacity .8s ease,background .4s,backdrop-filter .4s,padding .4s}
html.pre-intro #hdr,body.intro #hdr{opacity:0;pointer-events:none}

/* hero slider */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden}
.hero-track{position:relative;width:100%;z-index:5}
.slide{position:absolute;inset:0;display:flex;align-items:center;opacity:0;visibility:hidden;transition:opacity .9s ease,visibility .9s;pointer-events:none}
.slide.act{opacity:1;visibility:visible;position:relative;pointer-events:auto}
.slide .si{max-width:1180px;margin:0 auto;padding:0 var(--pad);width:100%}
.slide .ey2{font-family:var(--en);font-weight:600;letter-spacing:.2em;font-size:13px;color:var(--cyan);text-transform:uppercase;display:block;margin-bottom:22px}
.slide h1{font-family:var(--gothic);font-weight:900;font-size:clamp(34px,6.6vw,86px);line-height:1.16;letter-spacing:.01em;word-break:keep-all}
.slide h1 .ln{display:block}
.slide h1 .hl{background:linear-gradient(transparent 62%,rgba(63,214,255,.42) 62%)}
.slide .subcopy{font-family:var(--gothic);font-weight:700;font-size:clamp(16px,2vw,21px);margin-top:22px;color:var(--white);word-break:keep-all;overflow-wrap:anywhere}
.slide .sub{color:var(--dim);margin-top:18px;max-width:32em;line-height:1.95;font-size:clamp(14px,1.6vw,16px)}
.slide .acts{margin-top:36px;display:flex;gap:16px;flex-wrap:wrap}
.sdots{position:absolute;bottom:30px;left:var(--pad);z-index:6;display:flex;gap:10px}
.sdot{width:34px;height:4px;border-radius:2px;border:0;background:rgba(200,220,255,.28);cursor:pointer;transition:.3s;padding:0}
.sdot.act{background:var(--teallight);width:52px}
.scrollcue{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:6;font-family:var(--en);font-size:11px;letter-spacing:.22em;color:var(--dim);opacity:.7}
.scrollcue .m{width:1px;height:30px;margin:8px auto 0;background:linear-gradient(var(--teallight),transparent);animation:cue 1.8s ease-in-out infinite}
@keyframes cue{0%,100%{transform:scaleY(.4);opacity:.4}50%{transform:scaleY(1);opacity:1}}
body.scrolled .scrollcue{opacity:0;transition:opacity .4s}

/* logos marquee */
.logos{position:relative;z-index:10;background:transparent;padding:46px 0 60px;overflow:hidden}
.logos .cap{text-align:center;font-family:var(--en);font-size:13px;font-weight:700;letter-spacing:.24em;color:rgba(230,246,255,.6);margin-bottom:28px;text-transform:uppercase}
.logos .ltrack{display:flex;gap:78px;align-items:center;width:max-content;animation:marquee 42s linear infinite;padding-left:78px}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.logos .lg{position:relative;flex-shrink:0;animation:bob 5.5s ease-in-out infinite;will-change:transform;
  display:flex;align-items:center;justify-content:center;width:90px;height:90px;border-radius:16px;
  background:linear-gradient(158deg,rgba(255,252,246,.93),rgba(247,242,232,.87));
  backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);
  box-shadow:0 7px 22px rgba(0,6,18,.45),inset 0 0 14px rgba(255,255,255,.45);
  -webkit-box-reflect:below 9px linear-gradient(transparent 46%,rgba(170,205,240,.16))}
.logos .lg img{height:84px;width:84px;object-fit:contain;display:block}
.logos .lg:nth-child(2n){animation-duration:6.8s;animation-delay:-1.5s}
.logos .lg:nth-child(3n){animation-duration:5.2s;animation-delay:-3s}
.logos .lg:nth-child(4n){animation-duration:7.4s;animation-delay:-.8s}
@keyframes bob{0%,100%{transform:translateY(-7px)}50%{transform:translateY(9px)}}

/* about */
.about .grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.strip{position:relative;padding-left:34px}
.strip-line{position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--teallight),var(--blue));box-shadow:0 0 14px rgba(63,230,214,.5)}
.strip-item{display:flex;align-items:baseline;gap:16px;padding:14px 0}
.strip-item b{font-family:var(--en);font-weight:800;font-size:clamp(40px,6vw,72px);line-height:1;
  background:linear-gradient(120deg,#eaf6ff,var(--teallight));-webkit-background-clip:text;background-clip:text;color:transparent}
.strip-word{font-family:var(--en);font-weight:600;font-size:20px;letter-spacing:.05em;color:var(--white)}
.strip-word small{display:block;font-family:var(--gothic);font-size:13px;color:var(--dim);margin-top:2px}
.strip-end{font-family:var(--gothic);font-weight:900;font-size:clamp(22px,3vw,34px);margin-top:14px;padding-left:2px}

/* service */
.svc-group{margin-top:56px}
.svc-group-head{margin-bottom:26px}
.feat-badge{display:inline-block;font-family:var(--en);font-weight:700;font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--teallight);border:1px solid rgba(63,230,214,.4);border-radius:999px;padding:5px 13px;margin-bottom:14px}
.svc-group-t{font-family:var(--gothic);font-weight:900;font-size:clamp(21px,3vw,32px)}
.svc-main-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.svc-feat{position:relative;padding:34px 28px;border-radius:20px;overflow:hidden;
  background:linear-gradient(165deg,rgba(0,105,223,.26),rgba(3,8,22,.62));border:1px solid var(--line);transition:transform .3s,border-color .3s}
.svc-feat:hover{transform:translateY(-6px);border-color:rgba(63,230,214,.5)}
.feat-bg-num{position:absolute;top:-14px;right:8px;font-family:var(--en);font-weight:800;font-size:96px;color:rgba(63,214,255,.09)}
.feat-ico{width:46px;height:46px;border-radius:12px;background:linear-gradient(150deg,var(--blue),var(--teallight));display:grid;place-items:center;margin-bottom:16px;position:relative;z-index:1}
.svc-feat h3{font-family:var(--gothic);font-weight:700;font-size:22px;margin:8px 0 12px;position:relative;z-index:1}
.svc-feat p{color:var(--dim);font-size:14px;line-height:1.95;position:relative;z-index:1}
.feat-link{margin-top:16px;font-family:var(--gothic);font-weight:700;font-size:13.5px;color:var(--teallight);display:inline-flex;align-items:center;gap:6px;position:relative;z-index:1}
.svc-list{display:flex;flex-direction:column;margin-top:8px}
.svc-list-item{display:flex;gap:22px;padding:24px 0;border-top:1px solid var(--line)}
.svc-list-num{font-family:var(--en);font-weight:800;font-size:20px;color:var(--teallight);min-width:38px}
.svc-list-body h4{font-family:var(--gothic);font-weight:700;font-size:19px;margin-bottom:8px}
.svc-list-body p{color:var(--dim);font-size:14px;line-height:1.9}
.svc-list-body .feat-link{margin-top:10px}
.svc-more{margin-top:40px}

/* new service band */
.newsvc{padding:clamp(20px,4vh,54px) 0}
.newsvc-panel{position:relative;overflow:hidden;border-radius:24px;padding:clamp(32px,5vw,58px);
  background:linear-gradient(150deg,rgba(0,105,223,.30),rgba(3,10,30,.72));border:1px solid rgba(63,230,214,.30);
  box-shadow:0 22px 64px rgba(0,10,30,.42)}
.newsvc-panel .feat-badge{margin-bottom:16px}
.newsvc-catch{font-family:var(--gothic);font-weight:900;font-size:clamp(21px,2.7vw,32px);margin-top:12px;color:var(--white);word-break:keep-all;overflow-wrap:anywhere}
.newsvc-catch .hl{background:linear-gradient(transparent 62%,rgba(63,214,255,.42) 62%)}
.newsvc-courses{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.nc{display:flex;flex-direction:column;gap:5px;padding:16px 26px;border-radius:14px;border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(6,16,40,.62),rgba(3,8,22,.5));min-width:150px;flex:1 1 150px}
.nc-name{font-family:var(--gothic);font-weight:700;font-size:15px;color:var(--white)}
.nc-time{font-family:var(--en);font-weight:800;font-size:24px;color:var(--teallight);line-height:1}
.newsvc-note{color:var(--dim);font-size:14.5px;margin-top:22px;line-height:1.9}
.newsvc .acts{margin-top:30px;display:flex;gap:16px;flex-wrap:wrap}

/* why us */
.why-list{margin-top:52px;display:flex;flex-direction:column;gap:20px}
.why-row{display:grid;grid-template-columns:auto 1fr;gap:26px;align-items:center;padding:30px 34px;border-radius:20px;border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(6,16,40,.55),rgba(3,8,22,.6))}
.why-row:nth-child(even){transform:translateX(clamp(0px,3vw,40px))}
.why-num{font-family:var(--en);font-weight:800;font-size:clamp(48px,7vw,92px);line-height:1;
  background:linear-gradient(140deg,var(--teallight),var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent}
.why-body h4{font-family:var(--gothic);font-weight:700;font-size:22px;margin-bottom:10px}
.why-body p{color:var(--dim);font-size:15px;line-height:1.95}

/* flow */
.flow-timeline{margin-top:56px;position:relative}
.flow-steps-row{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.flow-step{position:relative;padding:30px 24px;border-radius:18px;border:1px solid var(--line);background:linear-gradient(170deg,rgba(6,14,34,.6),rgba(3,8,20,.66))}
.flow-step-dot{width:44px;height:44px;border-radius:50%;background:linear-gradient(150deg,var(--blue),var(--teallight));display:grid;place-items:center;
  font-family:var(--en);font-weight:800;color:#032a26;margin-bottom:16px}
.flow-step h4{font-family:var(--gothic);font-weight:700;font-size:18px;margin-bottom:10px}
.flow-step p{color:var(--dim);font-size:13.5px;line-height:1.9}

/* faq */
.acc{max-width:860px;margin-top:44px}
.qa{border-bottom:1px solid var(--line)}
.qa summary{list-style:none;cursor:pointer;padding:22px 4px;font-family:var(--gothic);font-weight:700;font-size:clamp(15px,1.9vw,18px);display:flex;gap:14px;align-items:flex-start}
.qa summary::-webkit-details-marker{display:none}
.qa summary .q{font-family:var(--en);font-weight:800;color:var(--teallight);flex-shrink:0}
.qa summary::after{content:"+";margin-left:auto;color:var(--teallight);font-family:var(--en);font-weight:700;font-size:22px;transition:transform .3s}
.qa[open] summary::after{transform:rotate(45deg)}
.qa .a{padding:0 4px 24px 40px;color:var(--dim);font-size:14.5px;line-height:1.95}
.faq-more{margin-top:36px}

/* cta */
.cta{position:relative;z-index:10;text-align:center;padding:clamp(110px,20vh,240px) 0}
.cta h2{font-family:var(--gothic);font-weight:900;font-size:clamp(30px,6vw,74px);line-height:1.2}
.cta p{color:var(--dim);margin:24px auto 0;max-width:38em;font-size:16px}
.cta .btn{margin-top:40px}

@media(max-width:960px){
  .about .grid,.svc-main-3,.flow-steps-row{grid-template-columns:1fr}
  .why-row{grid-template-columns:1fr;gap:8px;padding:24px}.why-row:nth-child(even){transform:none}
}
@media(max-width:640px){
  .flow-steps-row{grid-template-columns:1fr}
  .slide h1{font-size:clamp(24px,7vw,30px)}.slide .subcopy{font-size:16px}
}
@media(prefers-reduced-motion:reduce){
  .scrollcue .m,.logos .ltrack,.logos .lg{animation:none}
}